WO2021097682A1 - Harq-ack反馈方法、装置及通信设备 - Google Patents

Harq-ack反馈方法、装置及通信设备 Download PDF

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Publication number
WO2021097682A1
WO2021097682A1 PCT/CN2019/119521 CN2019119521W WO2021097682A1 WO 2021097682 A1 WO2021097682 A1 WO 2021097682A1 CN 2019119521 W CN2019119521 W CN 2019119521W WO 2021097682 A1 WO2021097682 A1 WO 2021097682A1
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WIPO (PCT)
Prior art keywords
carrier
harq
information
downlink data
ack
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PCT/CN2019/119521
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English (en)
French (fr)
Inventor
李明菊
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2019/119521 priority Critical patent/WO2021097682A1/zh
Priority to CN201980003088.3A priority patent/CN113170485B/zh
Priority to US17/777,014 priority patent/US20220407628A1/en
Publication of WO2021097682A1 publication Critical patent/WO2021097682A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1822—Automatic repetition systems, e.g. Van Duuren systems involving configuration of automatic repeat request [ARQ] with parallel processes
    • 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
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H04L5/0046—Determination of how many bits are transmitted on different sub-channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—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
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • This application relates to the field of wireless communication technology but is not limited to the field of wireless communication technology, and in particular to a HARQ-ACK feedback method, device and communication equipment.
  • HARQ-ACK Hybrid Automatic Repeat request acknowledgement
  • HARQ-ACK Hybrid Automatic Repeat request acknowledgement
  • the embodiment of the application discloses a HARQ-ACK feedback method, device and communication equipment.
  • a HARQ-ACK feedback method which is applied to a terminal, and includes:
  • the feedback information includes: carrier reception indication information and hybrid automatic repeat request response HARQ-ACK information;
  • the carrier reception indication information is used to indicate that the terminal has received the downlink data on the first carrier and/or has not received the downlink data on the second carrier; the HARQ-ACK information is Feedback information of the downlink data received on the first carrier.
  • a HARQ-ACK feedback method which is applied to a base station, and includes:
  • the feedback information includes: carrier reception indication information and HARQ-ACK information
  • the carrier indication information determining that the terminal has received the downlink data on the first carrier and/or has not received the downlink data on the second carrier;
  • a HARQ-ACK feedback device the device includes a first sending module, wherein:
  • the first sending module is configured to send feedback information according to the receiving status of the downlink data, where the feedback information includes: carrier reception indication information and HARQ-ACK information;
  • the carrier reception indication information is used to indicate that the terminal has received the downlink data on the first carrier and/or has not received the downlink data on the second carrier; the HARQ-ACK information is Feedback information of the downlink data received on the first carrier.
  • a HARQ-ACK feedback device the device includes a second receiving module and a determining module, wherein:
  • the second receiving module is configured to receive feedback information, where the feedback information includes: carrier reception indication information and HARQ-ACK information;
  • the determining module is configured to determine, according to the carrier indication information, that the terminal has received the downlink data on the first carrier and/or has not received the downlink data on the second carrier; according to the HARQ -ACK information determines the reception status of the downlink data received on the first carrier.
  • a communication device including:
  • the processor is respectively connected to the antenna and the memory, and is configured to control the antenna to send and receive wireless signals by executing the executable program stored on the memory, and can execute the HARQ-ACK feedback method provided by any of the foregoing technical solutions A step of.
  • feedback information may be sent to the base station according to the receiving status of the downlink data, where the feedback information includes: carrier reception indication information and hybrid automatic repeat request response HARQ-ACK information; wherein, the carrier receiving The indication information is used to indicate that the terminal has received the downlink data on the first carrier and/or has not received the downlink data on the second carrier.
  • the carrier reception indication information indicates the terminal The downlink data is received on the first carrier and/or the downlink data is not received on the second carrier.
  • the base station can accurately determine whether the downlink data is received on each carrier.
  • the HARQ-ACK information is feedback information of the downlink data received on the first carrier.
  • the feedback information sent to the base station is the feedback information of the downlink data received on the first carrier, and does not include the feedback information of the downlink data not received on the second carrier.
  • the base station can determine that it is on the second carrier based on the carrier reception indication information.
  • the condition that the downlink data is not received is equivalent to the feedback of the downlink data reception situation.
  • the terminal does not need to feed back the HARQ-ACK information of the HARQ-ACK process on the second carrier, which reduces the amount of HARQ-ACK information.
  • a large number of bits saves signaling overhead; on the other hand, after receiving the feedback information, the base station can accurately determine the downlink data received on the first carrier based on the HARQ-ACK information.
  • FIG. 1 is a schematic structural diagram of a wireless communication system provided by an embodiment of the disclosure
  • FIG. 2 is a schematic diagram of downlink data transmission according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of a HARQ-ACK feedback method provided by an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a HARQ-ACK feedback method provided by an embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of a HARQ-ACK feedback method provided by an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of a HARQ-ACK feedback method provided by an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of a HARQ-ACK feedback method provided by an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a HARQ-ACK feedback method provided by an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of a HARQ-ACK feedback method provided by an embodiment of the present disclosure.
  • FIG. 10 is a schematic diagram of a HARQ-ACK feedback method provided by an embodiment of the present disclosure.
  • FIG. 11 is a schematic diagram of a HARQ-ACK feedback device provided by an embodiment of the present disclosure.
  • FIG. 12 is a schematic diagram of a HARQ-ACK feedback device provided by an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure.
  • FIG. 14 is a schematic structural diagram of a base station provided by an embodiment of the present disclosure.
  • first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, the information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • first information may also be referred to as second information, and similarly, the second information may also be referred to as first information.
  • the words "if” and “if” as used herein can be interpreted as “when” or “when” or “in response to certainty”.
  • FIG. 1 shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present disclosure.
  • the wireless communication system is a communication system based on cellular mobile communication technology.
  • the wireless communication system may include several terminals 11 and several base stations 12.
  • the terminal 11 may be a device that provides voice and/or data connectivity to the user.
  • the terminal 11 can communicate with one or more core networks via a radio access network (Radio Access Network, RAN).
  • the terminal 11 can be an Internet of Things terminal, such as a sensor device, a mobile phone (or “cellular” phone), and
  • the computer of the Internet of Things terminal for example, may be a fixed, portable, pocket-sized, handheld, built-in computer or vehicle-mounted device.
  • station For example, station (Station, STA), subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), mobile station (mobile), remote station (remote station), access point, remote terminal ( remote terminal), access terminal (access terminal), user device (user terminal), user agent (user agent), user equipment (user device), or user terminal (user equipment, UE).
  • the terminal 11 may also be a device of an unmanned aerial vehicle.
  • the terminal 11 may also be an in-vehicle device, for example, it may be a trip computer with a wireless communication function, or a wireless communication device connected to the trip computer.
  • the terminal 11 may also be a roadside device, for example, it may be a street lamp, signal lamp, or other roadside device with a wireless communication function.
  • the base station 12 may be a network side device in a wireless communication system.
  • the wireless communication system may be the 4th generation mobile communication (4G) system, also known as the Long Term Evolution (LTE) system; or, the wireless communication system may also be a 5G system. Also known as new radio (NR) system or 5G NR system.
  • the wireless communication system may also be the next-generation system of the 5G system.
  • the access network in the 5G system can be called NG-RAN (New Generation-Radio Access Network). Or, MTC system.
  • the base station 12 may be an evolved base station (eNB) used in a 4G system.
  • the base station 12 may also be a base station (gNB) adopting a centralized and distributed architecture in the 5G system.
  • eNB evolved base station
  • gNB base station
  • the base station 12 adopts a centralized and distributed architecture it usually includes a centralized unit (CU) and at least two distributed units (DU).
  • the centralized unit is provided with a packet data convergence protocol (Packet Data Convergence Protocol, PDCP) layer, a radio link layer control protocol (Radio Link Control, RLC) layer, and a media access control (Media Access Control, MAC) layer protocol stack; distribution
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC media access control
  • the unit is provided with a physical (Physical, PHY) layer protocol stack, and the embodiment of the present disclosure does not limit the specific implementation manner of the base station 12.
  • a wireless connection can be established between the base station 12 and the terminal 11 through a wireless air interface.
  • the wireless air interface is a wireless air interface based on the fourth-generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth-generation mobile communication network technology (5G) standard, such as The wireless air interface is a new air interface; or, the wireless air interface may also be a wireless air interface based on a 5G-based next-generation mobile communication network technology standard.
  • an E2E (End to End) connection can also be established between the terminals 11.
  • V2V vehicle to vehicle
  • V2I vehicle to Infrastructure
  • V2P vehicle to pedestrian
  • the above-mentioned wireless communication system may further include a network management device 13.
  • the network management device 13 may be a core network device in a wireless communication system.
  • the network management device 13 may be a mobility management entity (Mobility Management Entity) in an Evolved Packet Core (EPC) network. MME).
  • the network management device may also be other core network devices, such as Serving GateWay (SGW), Public Data Network GateWay (PGW), Policy and Charging Rules function unit (Policy and Charging Rules). Function, PCRF) or home subscriber network side device (Home Subscriber Server, HSS), etc.
  • SGW Serving GateWay
  • PGW Public Data Network GateWay
  • Policy and Charging Rules function unit Policy and Charging Rules
  • Function PCRF
  • HSS home subscriber network side device
  • the implementation form of the network management device 13 is not limited in the embodiment of the present disclosure.
  • each time the terminal feeds back HARQ-ACK information it will feed back HARQ-ACK feedback information of all HARQ processes at one time.
  • all HARQ processes include scheduled HARQ processes and HARQ processes that are not scheduled. For example, when the maximum number of downlink HARQ processes is configured to 16, the terminal needs to feed back the HARQ-ACK information of 16 HARQ processes every time it feeds back HARQ-ACK information.
  • the base station configures multiple carriers for the terminal, each time the terminal performs HARQ-ACK feedback, it needs to feed back the HARQ-ACK information of all configured HARQ processes of the multiple carriers to the base station.
  • the base station configures the terminal with M carriers, and each carrier is configured with K downlink HARQ processes, then each time the terminal sends HARQ-ACK feedback information, it needs to feed back the HARQ-ACK of M*K HARQ processes to the base station.
  • M and K are positive integers greater than zero.
  • the base station configures 4 carriers for the terminal, which are carrier 1, carrier 2, carrier 3, and carrier 4.
  • the base station has configured multiple carriers for the terminal, it does not mean that the terminal must have downlink data transmission on each carrier within a certain period of time. For example, as shown in Figure 2, there is no downlink data transmission on carrier 4.
  • PDSCH Physical Downlink Shared Channel
  • the terminal may not receive at all on some carriers To the corresponding PDSCH data block.
  • the base station transmits one or several PDSCH data blocks on the carrier, but the terminal misses these one or several PDSCH data blocks. If the carrier does not receive the actual transmission of the PDSCH data block in the corresponding PDSCH transmission interval, the terminal also needs to feed back the HARQ-ACK information of all K HARQ processes, which will cause a great waste of transmission resources.
  • the transmission interval here may be an interval where the base station uses resources for PDSCH scheduling T times.
  • Each PDSCH scheduling may correspond to one HARQ process, and T times of PDSCH scheduling may correspond to T HARQ processes.
  • T is a positive integer greater than or equal to 1.
  • the transmission interval is the interval where the base station uses resources for 11 PDSCH scheduling.
  • 11 times of PDSCH scheduling can correspond to 11 consecutive HARQ processes.
  • 11 PDSCH scheduling includes 11 consecutive HARQ processes numbered 1 to 11.
  • the value of T can be adjusted.
  • the value of T can be "5", "8", "11", etc., and the base station can determine the value of N based on the PDSCH scheduling algorithm that maintains the highest scheduling efficiency.
  • an embodiment of the present disclosure provides a HARQ-ACK feedback method, which is applied to a terminal, and the method includes:
  • Step S310 Send feedback information to the base station according to the receiving status of the downlink data, where the feedback information includes: carrier reception indication information and HARQ-ACK information;
  • the carrier reception indication information is used to indicate that the terminal has received downlink data on the first carrier and/or has not received downlink data on the second carrier;
  • HARQ-ACK information is the downlink data received on the first carrier Feedback information.
  • the terminal may be a mobile terminal; the base station and the terminal may be MTC devices in a machine type communication (MTC, Machine Type Communication) system.
  • MTC Machine Type Communication
  • the downlink data may be a transmission block (TB, Transmission Block) sent by the base station to the terminal.
  • the downlink data can be a data transmission block containing information content; different transmission blocks can contain different information content.
  • the reception status may refer to information about whether the terminal has received downlink data.
  • determining whether the terminal receives the downlink data may be determining whether the terminal receives the downlink data on the carrier configured by the base station for the terminal. For example, as shown in Figure 2, the terminal can confirm that downlink data is received on carrier 1, carrier 2, and carrier 3, but no downlink data is received on carrier 4.
  • the first carrier is a carrier on which the UE has received downlink data.
  • carrier 1 carrier 2, and carrier 3.
  • the second carrier is a carrier on which the UE does not receive downlink data.
  • the carrier reception indication information may indicate that there are carriers that have received downlink data and that have not received downlink data by using bit values.
  • the carriers configured by the base station for the terminal include carrier 1, carrier 2, carrier 3, and carrier 4.
  • the carrier reception indication information uses 4 bits to indicate that downlink data is received on the first carrier and/or on the second carrier. Downlink data is not received.
  • the base station when downlink data is received on the corresponding carrier, the bit corresponding to the carrier can be "1", and when no downlink data is received on the carrier, the bit corresponding to the carrier can be "0". Then when the value of each bit in the 4 bits is "1", “1", “1", “0" (that is, the code is "1110"), the carrier receiving indication information is used to indicate the carrier 1, The downlink data is received on carrier 2 and carrier 3, but no downlink data is received on carrier 4.
  • carrier 1, carrier 2, and carrier 3 are the aforementioned first carrier, and carrier 4 is the aforementioned second carrier.
  • the base station After the base station receives the feedback information sent by the terminal, it can determine the receiving status of the uplink and downlink data on each carrier based on the carrier reception indication information.
  • the carrier reception indication information may be indicated by bits, and each bit may indicate a carrier.
  • the carrier can be the first carrier, and the HARQ-ACK information will contain the HARQ-ACK feedback of all HARQ-ACK processes on the first carrier corresponding to the bit. information.
  • the carrier can be the second carrier, and the HARQ-ACK information will not include the HARQ of any HARQ-ACK process on the second carrier corresponding to the bit. -ACK feedback information.
  • the UE will not feed back the HARQ-ACK information corresponding to the HARQ-ACK process on the second carrier, thereby reducing the overhead of HARQ-ACK feedback information.
  • the base station receives the first coding sequence corresponding to the indication information by receiving the carrier, and after demodulating M bits (taking M as an example), according to the number of bits whose bit indication is "1" among the M bits, Then, the number of HARQ-ACK information bits indicated by the second coding sequence corresponding to the HARQ-ACK information can be obtained, so as to accurately decode the second coding sequence.
  • the HARQ-ACK information includes HARQ-ACK feedback information corresponding to carrier 1, carrier 2, and carrier 4.
  • the first carrier is a general reference to a carrier on which the UE has received downlink data, and may include: one or more carriers.
  • the carriers configured by the base station for the terminal include carrier 1, carrier 2, carrier 3, and carrier 4.
  • the feedback information of the downlink data received on the first carrier is included in Feedback information of the downlink data received on Carrier 1, Carrier 2 and Carrier 3.
  • the feedback information of the downlink data received on the first carrier includes the feedback information of the HARQ process configured by the base station for the terminal's first carrier.
  • the base station configures 4 carriers for the terminal, and each carrier is configured with 8 HARQ processes.
  • the first carrier includes carrier 1, carrier 2, and carrier 3, and the feedback information of downlink data received on the first carrier includes feedback information of 24 HARQ processes.
  • the feedback information of each HARQ process can include N or A.
  • N is the abbreviation of the negative indicator NACK, which is used to characterize the data reception status of the corresponding downlink data that the terminal has not successfully received
  • A is the abbreviation of the acknowledgment indicator ACK, which is used to characterize the data receiving status of the terminal that successfully receives the corresponding downlink data .
  • multiple HARQ processes can be supported. For example, up to 8 HARQ processes can be supported.
  • Each scheduled transmission block can correspond to one HARQ process.
  • Each HARQ process needs a HARQ process number for marking.
  • 8 HARQ processes need 8 HARQ process numbers for marking.
  • the 8 HARQ processes can be marked by HARQ process numbers "0", “1", “2", “3”, “4", "5", “6", and “7” in sequence.
  • the base station sends 4 transport blocks to the terminal through carrier 1.
  • the HARQ processes on carrier 1 are HARQ processes numbered “0", “1", “2", and “3", and the 4 HARQ processes correspond to feedback
  • the information is AAAN, and the characterization terminal confirms that 3 transmission blocks have been received, and one transmission block was not received correctly.
  • the base station can determine the downlink data reception status on the first carrier after receiving the HARQ-ACK feedback information sent by the terminal.
  • the base station may configure M (M is a positive integer greater than or equal to 0) carriers for the terminal, and configure the one-time HARQ-ACK feedback mode.
  • M is a positive integer greater than or equal to 0
  • the terminal reports M bits through carrier reception indication information.
  • the M bits correspond to M carriers and are used to characterize whether there is downlink data transmission (or PDSCH scheduling) on the carrier. It can be that when the bit value is "0", it indicates that there is no downlink data transmission, and when the bit value is "1", it indicates that there is downlink data transmission.
  • the corresponding bit of the corresponding M bits will be set to "1", and the terminal will feed back this
  • feedback information is sent to the base station according to the receiving status of the downlink data, where the feedback information includes: carrier reception indication information and HARQ-ACK information; wherein, the carrier reception indication information is used to indicate that the terminal is on the first carrier There is downlink data received and/or no downlink data received on the second carrier.
  • the carrier reception indication information indicates that the terminal has received downlink data on the first carrier and/or has not received downlink data on the second carrier.
  • the base station can accurately determine whether the downlink data is received on each carrier after receiving the feedback information.
  • HARQ-ACK information is feedback information of downlink data received on the first carrier.
  • the feedback information sent to the base station is feedback information of downlink data received on the first carrier, and does not include feedback information of downlink data that is not received on the second carrier.
  • the base station can determine the status of no downlink data reception on the second carrier based on the carrier reception indication information, which is equivalent to The feedback of downlink data reception is performed, and the terminal does not need to feed back the HARQ-ACK information of the HARQ-ACK process on the second carrier, which reduces the number of bits occupied when transmitting HARQ-ACK information, and saves signaling overhead.
  • the base station after receiving the feedback information, the base station can accurately determine the downlink data received on the first carrier based on the HARQ-ACK information.
  • an embodiment of the present disclosure provides a HARQ-ACK feedback method, which is applied to a terminal, and the method further includes:
  • Step S410 receiving the HARQ process configuration information sent by the base station; wherein the HARQ process configuration information is used to indicate the number N of HARQ processes respectively configured on the first carrier and the second carrier; where N is a positive integer greater than 1; HARQ -ACK information is feedback information of N HARQ processes on the first carrier.
  • the HARQ process configuration information may be received before the feedback information is sent to the base station.
  • the HARQ process configuration information sent by the base station is received, and the HARQ process configuration information is updated.
  • the HARQ process configuration information may be information for configuring the HARQ process for each carrier.
  • the HARQ process configuration information may include the number N of HARQ processes configured on each carrier. For example, 8 or 16 HARQ processes can be configured for each carrier. Here, it should be noted that the maximum number of processes N configured on each carrier may be the same or different.
  • carrier 1 is configured with 8 HARQ processes
  • carrier 2 is configured with 16 HARQ processes.
  • the base station configures 8 HARQ processes for each carrier, and the numbers of the 8 HARQ processes correspond to "0", "1", "2", “3", "4", and "5". , "6", "7".
  • HARQ-ACK information may refer to feedback information about whether downlink data is received on the first carrier.
  • each transport block corresponds to one HARQ process
  • the HARQ-ACK information may refer to the feedback information of whether the transport block is received on the first carrier.
  • the first carrier includes carrier 1, carrier 2, and carrier 3, and the HARQ-ACK information includes feedback information of a total of 24 HARQ processes on carrier 1, carrier 2, and carrier 3.
  • an embodiment of the present disclosure provides a HARQ-ACK feedback method, which is applied to a terminal, and the method further includes:
  • Step S510 Receive carrier configuration information sent by the base station; wherein, the carrier configuration information includes: the number of carriers M and the carrier index; M is the total number of the first carrier and the second carrier; M is a positive integer greater than 1.
  • the carrier configuration information sent by the base station may be received before the feedback information is sent to the base station.
  • the carrier configuration information sent by the base station is received, and the carrier configuration information is updated.
  • the carrier configuration information may be information configured by the base station for carrier resources used for data transmission between the base station and the terminal.
  • the base station can uniformly configure the number of carriers. For example, as shown in Figure 2, the base station is configured with 4 carriers, namely Carrier 1, Carrier 2, Carrier 3, and Carrier 4.
  • the base station selects several carriers to send data by indicating the carrier index in the scheduling information, while the remaining carriers do not send data.
  • the carrier index can be set by index bits. For example, when the index bits are set to "001", "010", “011”, "100", the carriers with carrier indexes "001", "010", “011” and "100" can be selected to send data.
  • the terminal may arrange the carrier indication information and HARQ-ACK information in the order of the carrier index, and then respectively encode the carrier indication information and HARQ-ACK information to obtain encoded feedback information.
  • the base station After receiving the encoded feedback information sent by the terminal, the base station decodes the feedback information to obtain carrier indication information and HARQ-ACK information. Since the carrier indication information indicates that the terminal has received downlink data on the first carrier and/or has not received downlink data on the second carrier, after receiving the feedback information, the base station can determine the usage based on the order of the carrier index. Whether the downlink data is received on each carrier of the data transmission.
  • the base station may further determine the specific receiving situation of the uplink and downlink data of each first carrier based on the order of the carrier index. For example, for downlink data transmission through 4 carriers, 8 HARQ processes are configured on each carrier, the code corresponding to carrier indication information is "1011", and the code corresponding to HARQ-ACK information is "11110111 11111111 01111111”.
  • the base station can determine based on the coding sequence that the carriers on which the terminal receives downlink data are carrier 1, carrier 3, and carrier 4, and no downlink data is received on carrier 2.
  • an embodiment of the present disclosure provides a HARQ-ACK feedback method, which is applied to a terminal, and the method further includes:
  • Step S610 encoding the carrier reception indication information to obtain a first coding sequence; coding HARQ-ACK information to obtain a second coding sequence;
  • step S310 sending feedback information to the base station includes:
  • the first coding sequence and the second coding sequence can be coded using different coding rules.
  • the first coding sequence may be coded together with other coding sequences than the second coding sequence.
  • the first coding sequence can also be a separate coding.
  • the separate encoding may be during encoding, so that the first encoding sequence only indicates carrier reception indication information, and does not indicate other types of information.
  • the carrier acceptance indication information and HARQ-ACK information are respectively coded into the first coding sequence and the second coding sequence.
  • the base station can demodulate the M bits according to the first coding sequence (here, the demodulated bit Taking M bits as an example for description), the number of HARQ-ACK information bits corresponding to the second coding sequence is accurately known, so that the second coding sequence bits can be decoded correctly to obtain HARQ-ACK information.
  • the carrier reception indication information includes M bits; among them,
  • a bit corresponding to the first carrier among the M bits has a first bit value
  • the bit corresponding to the second carrier among the M bits has a second bit value.
  • the first bit value is different from the second bit value.
  • the value of the first bit is "1"
  • the value of the second bit is "0".
  • the base station can determine the terminal based on the different values of each bit of the first coding sequence When receiving downlink data on carrier 1, carrier 2, carrier 3, and carrier 4.
  • the code is "1110”
  • the base station can determine that the terminal has received downlink data on carrier 1, carrier 2, and carrier 3, and the terminal has not received downlink data on carrier 4.
  • the HARQ-ACK information corresponding to the first carrier is sorted according to the carrier index of the first carrier from small to large.
  • the HARQ-ACK information corresponding to the first carrier may be HARQ-ACK information corresponding to the first carrier, and the HARQ-ACK information is sorted from small to large according to the carrier index of the first carrier.
  • the carrier index of the first carrier is "001", “010” and “011”
  • the HARQ-ACK information corresponding to the first carrier with the carrier index "001” is “01111111”
  • the carrier index is the first carrier with "010”
  • the HARQ-ACK information corresponding to one carrier is "11111111”
  • the HARQ-ACK information corresponding to the first carrier whose carrier index is "011” is "11110111".
  • the HARQ-ACK information corresponding to the first carrier is sorted according to the carrier index of the first carrier, and the coding sequence of the HARQ-ACK information obtained is "01111111 11111111 111101111".
  • the HARQ-ACK information is sorted from small to large according to the carrier index of the first carrier to facilitate decoding by the base station.
  • the HARQ-ACK information of each first carrier is accurately obtained based on the sequence of the carrier index.
  • the foregoing encoding may be obtained by encoding in different ways according to different encoding rules, and the encoding obtained by different encoding methods may be different.
  • an embodiment of the present disclosure provides a HARQ-ACK feedback method, which is applied to a base station, and includes:
  • Step S710 Receive feedback information sent by the terminal, where the feedback information includes: carrier reception indication information and HARQ-ACK information;
  • the terminal may be a mobile terminal; the base station and the terminal may be MTC devices in a machine type communication (MTC, Machine Type Communication) system.
  • MTC Machine Type Communication
  • Step S720 Determine, according to the carrier indication information, that the terminal has received downlink data on the first carrier and/or has not received downlink data on the second carrier; determine the downlink data received on the first carrier according to the HARQ-ACK information The reception status.
  • the downlink data may be a transmission block (TB, Transmission Block) sent by the base station to the terminal.
  • the downlink data can be a data transmission block containing information content; different transmission blocks can contain different information content.
  • the reception status may refer to information about whether the terminal has received downlink data.
  • determining whether the terminal receives the downlink data may be determining whether the terminal receives the downlink data on the carrier configured by the base station for the terminal. For example, as shown in Figure 2, the terminal can confirm that downlink data is received on carrier 1, carrier 2, and carrier 3, but no downlink data is received on carrier 4.
  • the first carrier may be a carrier that receives downlink data.
  • the second carrier may be a carrier that has not received downlink data.
  • the carrier reception indication information may indicate that the downlink data is received on the first carrier and/or the downlink data is not received on the second carrier through the value of bits.
  • the carriers configured by the base station for the terminal include carrier 1, carrier 2, carrier 3, and carrier 4.
  • the carrier reception indication information uses 4 bits to indicate that downlink data is received on the first carrier and/or on the second carrier. Downlink data is not received.
  • the base station when downlink data is received on the corresponding carrier, the bit corresponding to the carrier can be "1", and when no downlink data is received on the carrier, the bit corresponding to the carrier can be "0". Then when the value of each bit in the 4 bits is "1", “1", “1", “0" (that is, the code is "1110"), the carrier receiving indication information is used to indicate the carrier 1, The downlink data is received on carrier 2 and carrier 3, but no downlink data is received on carrier 4.
  • carrier 1, carrier 2, and carrier 3 are the aforementioned first carrier, and carrier 4 is the aforementioned second carrier.
  • the base station After the base station receives the feedback information sent by the terminal, it can determine the receiving status of the uplink and downlink data on each carrier based on the carrier reception indication information.
  • the carrier reception indication information may be indicated by bits, and each bit may indicate a carrier.
  • the carrier can be the first carrier, and the HARQ-ACK information will contain the HARQ-ACK feedback of all HARQ-ACK processes on the first carrier corresponding to the bit. information.
  • the carrier can be the second carrier, and the HARQ-ACK information will not include the HARQ of any HARQ-ACK process on the second carrier corresponding to the bit. -ACK feedback information.
  • the UE will not feed back the HARQ-ACK information corresponding to the HARQ-ACK process on the second carrier, thereby reducing the overhead of HARQ-ACK feedback information.
  • the base station receives the first coding sequence corresponding to the indication information by receiving the carrier, and after demodulating M bits (taking M as an example), according to the number of bits whose bit indication is "1" among the M bits, Then, the number of HARQ-ACK information bits indicated by the second coding sequence corresponding to the HARQ-ACK information can be obtained, so as to accurately decode the second coding sequence.
  • the HARQ-ACK information includes HARQ-ACK feedback information corresponding to carrier 1, carrier 2, and carrier 4.
  • the feedback information of the downlink data received on the first carrier may be the feedback information of the downlink data received on multiple carriers.
  • the carrier configured by the base station for the terminal includes carrier 1, carrier 2, carrier 3, and carrier 4. If the terminal receives downlink data on carrier 1, carrier 2, and carrier 3, the feedback information of the downlink data received on the first carrier is Includes feedback information of downlink data received on carrier 1, carrier 2, and carrier 3.
  • the feedback information of the downlink data received on the first carrier may refer to the feedback information of the HARQ process configured by the base station for the first carrier of the terminal.
  • the base station configures 4 carriers for the terminal, and each carrier is configured with 8 HARQ processes.
  • the first carrier includes carrier 1, carrier 2, and carrier 3, and the feedback information of downlink data received on the first carrier includes feedback information of 24 HARQ processes.
  • the feedback information of each HARQ process can include N or A.
  • N is the abbreviation of the negative indicator NACK, which is used to characterize the status of the terminal unsuccessfully receiving the corresponding downlink data
  • A is the abbreviation of the acknowledgement indicator ACK, which characterizes the data receiving status of the corresponding downlink data successfully received by the terminal.
  • multiple HARQ processes can be supported. For example, up to 8 HARQ processes can be supported.
  • Each scheduled transmission block can correspond to one HARQ process.
  • Each HARQ process needs a HARQ process number for marking.
  • 8 HARQ processes need 8 HARQ process numbers for marking.
  • the 8 HARQ processes can be marked by HARQ process numbers "0", “1", “2", “3”, “4", "5", “6", and “7” in sequence.
  • the base station sends 4 transport blocks to the terminal through carrier 1, the HARQ processes on carrier 1 are HARQ processes numbered “0", “1", “2", and “3", and the feedback corresponding to the 4 HARQ processes
  • the information is AAAN, and the characterization terminal confirms that 3 transmission blocks have been received, and one transmission block has not been received.
  • the base station can determine the downlink data reception status on the first carrier after receiving the HARQ-ACK feedback information sent by the terminal.
  • the base station may configure M (M is a positive integer greater than or equal to 0) carriers for the terminal, and configure the one-time HARQ-ACK feedback mode.
  • M is a positive integer greater than or equal to 0
  • the terminal reports M bits through carrier reception indication information.
  • the M bits correspond to M carriers and are used to characterize whether there is downlink data transmission (or PDSCH scheduling) on the carrier. It can be that when the bit value is "0", it indicates that there is no downlink data transmission, and when the bit value is 1, it indicates that there is downlink data transmission.
  • the corresponding bit of the corresponding M bits will be set to "1", and the terminal will feed back this
  • the feedback information sent by the terminal is received, where the feedback information includes: carrier reception indication information and HARQ-ACK information; according to the carrier indication information, it is determined that the terminal has received downlink data and/or received downlink data on the first carrier. No downlink data is received on the second carrier; here, the carrier reception indication information indicates that the terminal has received downlink data on the first carrier and/or has not received downlink data on the second carrier, and the base station is receiving After the information is fed back, it can be accurately determined whether downlink data is received on each carrier.
  • the reception status of the downlink data received on the first carrier is determined according to the HARQ-ACK information.
  • the feedback information sent to the base station is feedback information of downlink data received on the first carrier, and does not include feedback information of downlink data that is not received on the second carrier.
  • the base station can determine the status of no downlink data reception on the second carrier based on the carrier reception indication information, which is equivalent to After the feedback of the downlink data reception situation, the terminal does not need to feed back the HARQ-ACK information of the HARQ-ACK process on the second carrier, which reduces the large number of bits occupied when transmitting HARQ-ACK information and saves signaling overhead;
  • the base station after receiving the feedback information, the base station can accurately determine the downlink data received on the first carrier based on the HARQ-ACK information.
  • an embodiment of the present disclosure provides a HARQ-ACK feedback method, and the method further includes:
  • Step S810 Send HARQ process configuration information to the terminal; wherein the HARQ process configuration information is used to indicate the number N of HARQ processes configured on the first carrier and the second carrier respectively; where N is a positive integer greater than 1; HARQ- The ACK information is feedback information of N HARQ processes on the first carrier.
  • the HARQ process configuration information may be information for configuring the HARQ process for each carrier.
  • the HARQ process configuration information may include the number N of HARQ processes configured on each carrier. For example, 8 or 16 HARQ processes can be configured for each carrier. Here, it should be noted that the maximum number of processes N configured on each carrier may be the same or different.
  • carrier 1 is configured with 8 HARQ processes
  • carrier 2 is configured with 16 HARQ processes.
  • the base station configures 8 HARQ processes for each carrier, and the numbers of the 8 HARQ processes correspond to "0", "1", "2", “3", "4", and "5". , "6", "7".
  • HARQ-ACK information may refer to feedback information on whether downlink data is received on the first carrier.
  • each transport block corresponds to one HARQ process
  • the HARQ-ACK information may refer to the feedback information of whether the transport block is received on the first carrier.
  • the first carrier includes carrier 1, carrier 2, and carrier 3, and the HARQ-ACK information includes feedback information of a total of 24 HARQ processes on carrier 1, carrier 2, and carrier 3.
  • an embodiment of the present disclosure provides a HARQ-ACK feedback method, and the method further includes:
  • Step S910 Send carrier configuration information to the terminal; where the carrier configuration information includes: the number of carriers M and the carrier index; M is the total number of the first carrier and the second carrier; M is a positive integer greater than 1.
  • the carrier configuration information may be information configured by the base station for carrier resources used for data transmission between the base station and the terminal.
  • the base station can uniformly configure the number of carriers. For example, as shown in Figure 2, the base station is configured with 4 carriers, namely Carrier 1, Carrier 2, Carrier 3, and Carrier 4.
  • the base station selects several carriers to send data by selecting only the carrier index in the scheduling information, while the remaining carriers do not send data.
  • the carrier index can be set by index bits. For example, when the index bits are set to "001", "010", “011”, "100", the carriers with carrier indexes "001", "010", “011” and "100" can be selected to send data.
  • the terminal may arrange the carrier indication information and HARQ-ACK information in the order of the carrier index, and then respectively encode the carrier indication information and HARQ-ACK information to obtain encoded feedback information.
  • the base station After receiving the encoded feedback information sent by the terminal, the base station decodes the feedback information to obtain carrier indication information and HARQ-ACK information. Since the carrier indication information indicates that the terminal has received downlink data on the first carrier and/or has not received downlink data on the second carrier, after receiving the feedback information, the base station can determine the usage based on the order of the carrier index. Whether the downlink data is received on each carrier of the data transmission.
  • the base station may further determine the specific receiving situation of the uplink and downlink data of each first carrier based on the order of the carrier index. For example, for downlink data transmission through 4 carriers, 8 HARQ processes are configured on each carrier, the code corresponding to carrier indication information is "1011111", and the code sequence corresponding to HARQ-ACK information is "11110111 11111111 01111111”.
  • the base station can determine based on the coding sequence that the carriers on which the terminal receives downlink data are carrier 1, carrier 3, and carrier 4, and no downlink data is received on carrier 2.
  • step S710 receiving feedback information sent by a terminal includes:
  • Step S101 receiving the first coding sequence and the second coding sequence sent by the terminal; wherein, the first coding sequence is a coding sequence obtained by coding carrier reception indication information; the second coding sequence is a coding sequence for HARQ-ACK information The obtained coding sequence.
  • the first coding sequence may be coded together with other coding sequences than the second coding sequence.
  • the first encoding sequence may also be a separate encoding.
  • the separate encoding may be during encoding, so that the first encoding sequence only indicates carrier reception indication information, and does not indicate other types of information.
  • the carrier acceptance indication information and HARQ-ACK information are respectively encoded into the first coding sequence and the second coding sequence, so that the base station can demodulate the M bits according to the first coding sequence (here, the decoded first coding sequence
  • the sequence includes M bits as an example for description), the number of HARQ-ACK information bits corresponding to the second coding sequence is accurately known, so that the second coding sequence bits can be decoded correctly to obtain HARQ-ACK information.
  • the method further includes:
  • determining that the terminal has received downlink data on the first carrier and/or has not received downlink data on the second carrier includes:
  • the first bit value is different from the second bit value.
  • the value of the first bit is "1"
  • the value of the second bit is "0".
  • the base station can determine the terminal based on the different values of each bit of the first coding sequence In the case of receiving downlink data on Carrier 1, Carrier 2, Carrier 3, and Carrier 4, here, since the code is "1110", the base station can determine that the terminal has received downlink data on Carrier 1, Carrier 2, and Carrier 3. No downlink data is received on carrier 4.
  • the method further includes:
  • Determining the receiving status of the downlink data received on the first carrier according to the HARQ-ACK information includes:
  • the reception status of the downlink data received on the first carrier is determined.
  • the HARQ-ACK information corresponding to the first carrier is sorted according to the carrier index of the first carrier from small to large.
  • it may be HARQ-ACK information corresponding to the first carrier, sorted according to the carrier index of the first carrier from small to large.
  • the carrier index of the first carrier is "001", “010” and “011”
  • the HARQ-ACK information corresponding to the first carrier with the carrier index "001” is "01111111111”
  • the carrier index is the first carrier with "010”
  • the HARQ-ACK information corresponding to one carrier is "11111111”
  • the HARQ-ACK information corresponding to the first carrier whose carrier index is "011” is "11110111".
  • the HARQ-ACK information corresponding to the first carrier is sorted according to the carrier index of the first carrier, and the coding sequence of the HARQ-ACK information obtained is "01111111 11111111 11110111".
  • the HARQ-ACK information is sorted according to the carrier index of the first carrier from small to large to facilitate decoding by the base station, and the HARQ-ACK information of each first carrier is accurately obtained based on the order of the carrier index.
  • an embodiment of the present disclosure provides a HARQ-ACK feedback device.
  • the device includes a first sending module 111, wherein:
  • the first sending module 111 is configured to send feedback information to the base station according to the receiving status of the downlink data, where the feedback information includes: carrier reception indication information and HARQ-ACK information;
  • the carrier reception indication information is used to indicate that the terminal has received downlink data on the first carrier and/or has not received downlink data on the second carrier;
  • HARQ-ACK information is the downlink data received on the first carrier Feedback information.
  • the device further includes a first receiving module 112, wherein:
  • the first receiving module 112 is configured to receive HARQ process configuration information sent by the base station; wherein the HARQ process configuration information is used to indicate the number N of HARQ processes configured on the first carrier and the second carrier respectively; where N is greater than A positive integer of 1;
  • HARQ-ACK information is feedback information of N HARQ processes on the first carrier.
  • the first receiving module 112 is further configured to receive carrier configuration information sent by the base station; wherein, the carrier configuration information includes: the number of carriers M and the carrier index; M is the total number of the first carrier and the second carrier Number; M is a positive integer greater than 1.
  • the device further includes an encoding module 113, wherein:
  • the encoding module 113 is configured to encode carrier reception indication information to obtain a first coding sequence; to encode HARQ-ACK information to obtain a second coding sequence;
  • the first sending module 111 is configured to send the first coding sequence and the second coding sequence to the base station.
  • the carrier reception indication information includes M bits; where,
  • a bit corresponding to the first carrier among the M bits has a first bit value
  • the bit corresponding to the second carrier among the M bits has a second bit value.
  • the HARQ-ACK information corresponding to the first carrier is sorted according to the carrier index of the first carrier from small to large.
  • an embodiment of the present disclosure provides a HARQ-ACK feedback device.
  • the device includes a second receiving module 120 and a determining module 121, where:
  • the second receiving module 120 is configured to receive feedback information sent by the terminal, where the feedback information includes: carrier reception indication information and HARQ-ACK information;
  • the determining module 121 is configured to determine, according to the carrier indication information, that the terminal has received downlink data on the first carrier and/or has not received downlink data on the second carrier; according to the HARQ-ACK information, determine the received downlink data on the first carrier The receiving status of the downlink data.
  • the device further includes a second sending module 122, wherein:
  • the second sending module 122 is configured to send HARQ process configuration information to the terminal; wherein the HARQ process configuration information is used to indicate the number N of HARQ processes configured on the first carrier and the second carrier respectively; where N is greater than 1 Positive integer
  • HARQ-ACK information is feedback information of N HARQ processes on the first carrier.
  • the second sending module 122 is also used to send carrier configuration information to the terminal; wherein, the carrier configuration information includes: the number of carriers M and the carrier index; M is the total number of the first carrier and the second carrier; M is a positive integer greater than 1.
  • the second receiving module 120 is further configured to receive the first coding sequence and the second coding sequence sent by the terminal; where the first coding sequence is a coding sequence obtained by encoding carrier reception indication information; and second The coding sequence is a coding sequence obtained by coding HARQ-ACK information.
  • the device further includes a decoding module 123; wherein,
  • the decoding module 123 is configured to decode the first coding sequence to obtain M bits that carry carrier indication information
  • the determining module 121 is further configured to determine that the terminal has received downlink data on the first carrier corresponding to the bit when the bit in the M bits has the first bit value;
  • the decoding module is also used to decode the second coding sequence to obtain HARQ-ACK information
  • the determining module 122 is further configured to determine the reception status of the downlink data received on the first carrier according to HARQ-ACK information sorted from small to large according to the carrier index of the first carrier.
  • the embodiment of the present disclosure also provides a communication device, including:
  • the processor is respectively connected to the antenna and the memory, and is configured to control the antenna to send and receive wireless signals by executing an executable program stored on the memory, and can execute the steps of a HARQ-ACK feedback method provided by any of the foregoing embodiments.
  • the communication device provided in this embodiment may be the aforementioned terminal or base station.
  • the terminal can be a variety of human-borne terminals or vehicle-mounted terminals.
  • the base station may be various types of base stations, for example, a 4G base station or a 5G base station.
  • the antenna may be various types of antennas, for example, a mobile antenna such as a 3G antenna, a 4G antenna, or a 5G antenna; the antenna may also include: a WiFi antenna or a wireless charging antenna.
  • a mobile antenna such as a 3G antenna, a 4G antenna, or a 5G antenna
  • the antenna may also include: a WiFi antenna or a wireless charging antenna.
  • the memory may include various types of storage media.
  • the storage media is a non-transitory computer storage medium that can continue to memorize and store information thereon after the communication device is powered off.
  • the processor may be connected to the antenna and the memory through a bus or the like, and is used to read executable programs stored on the memory, for example, at least one of the methods shown in FIGS. 3 to 10.
  • an embodiment of the present disclosure provides a structure of a terminal.
  • the terminal 800 shown in FIG. 13 provides a terminal 800.
  • the terminal may specifically be a mobile phone, a computer, a digital broadcasting terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc. .
  • the terminal 800 may include one or more of the following components: a processing component 802, a memory 804, a power supply component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, And the communication component 816.
  • the processing component 802 generally controls the overall operations of the terminal 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • the processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the foregoing method.
  • the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components.
  • the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.
  • the memory 804 is configured to store various types of data to support operations in the device 800. Examples of these data include instructions for any application or method operated on the terminal 800, contact data, phone book data, messages, pictures, videos, and so on.
  • the memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable and Programmable read only memory (EPROM), programmable read only memory (PROM), read only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable and Programmable read only memory
  • PROM programmable read only memory
  • ROM read only memory
  • magnetic memory flash memory
  • flash memory magnetic disk or optical disk.
  • the power supply component 806 provides power for various components of the terminal 800.
  • the power supply component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the terminal 800.
  • the multimedia component 808 includes a screen that provides an output interface between the terminal 800 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touch, sliding, and gestures on the touch panel. The touch sensor can not only sense the boundary of the touch or slide action, but also detect the duration and pressure related to the touch or slide operation.
  • the multimedia component 808 includes a front camera and/or a rear camera. When the device 800 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 810 is configured to output and/or input audio signals.
  • the audio component 810 includes a microphone (MIC), and when the terminal 800 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive external audio signals.
  • the received audio signal may be further stored in the memory 804 or transmitted via the communication component 816.
  • the audio component 810 further includes a speaker for outputting audio signals.
  • the I/O interface 812 provides an interface between the processing component 802 and a peripheral interface module.
  • the above-mentioned peripheral interface module may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: home button, volume button, start button, and lock button.
  • the sensor component 814 includes one or more sensors for providing the terminal 800 with various status assessments.
  • the sensor component 814 can detect the on/off status of the device 800 and the relative positioning of components, such as the display and keypad of the terminal 800.
  • the sensor component 814 can also detect the position change of the terminal 800 or a component of the terminal 800. The presence or absence of contact with the terminal 800, the orientation or acceleration/deceleration of the terminal 800, and the temperature change of the terminal 800.
  • the sensor component 814 may include a proximity sensor configured to detect the presence of nearby objects when there is no physical contact.
  • the sensor component 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • the communication component 816 is configured to facilitate wired or wireless communication between the terminal 800 and other devices.
  • the terminal 800 can access a wireless network based on a communication standard, such as Wi-Fi, 2G or 3G, or a combination thereof.
  • the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • the terminal 800 may be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPD), programmable logic devices (PLD), field programmable A gate array (FPGA), controller, microcontroller, microprocessor, or other electronic components are implemented to implement the above methods.
  • ASIC application specific integrated circuits
  • DSP digital signal processors
  • DSPD digital signal processing devices
  • PLD programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor, or other electronic components are implemented to implement the above methods.
  • non-transitory computer-readable storage medium including instructions, such as the memory 804 including instructions, which can be executed by the processor 820 of the terminal 800 to complete the foregoing method.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and so on.
  • the terminal can be used to implement the aforementioned methods, for example, the methods shown in FIG. 3 to FIG. 10.
  • an embodiment of the present disclosure provides a structure of a base station.
  • the base station 900 may be provided as a network side device.
  • the base station 900 includes a processing component 922, which further includes one or more processors, and a memory resource represented by a memory 932, for storing instructions that can be executed by the processing component 922, such as application programs.
  • the application program stored in the memory 932 may include one or more modules each corresponding to a set of instructions.
  • the processing component 922 is configured to execute instructions to execute any of the aforementioned methods, for example, the methods shown in FIG. 2, FIG. 5, FIG. 6, FIG. 7 and FIG. 8.
  • the base station 900 may also include a power supply component 926 configured to perform power management of the base station 900, a wired or wireless network interface 950 configured to connect the base station 900 to the network, and an input output (I/O) interface 958.
  • the base station 900 can operate based on an operating system stored in the storage 932, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.
  • the wireless network interface 950 includes but is not limited to the antenna of the aforementioned communication device.

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Abstract

本申请实施例提供了一种HARQ-ACK反馈方法，应用于终端，包括：根据下行数据的接收状况，发送反馈信息，其中，所述反馈信息包括：载波接收指示信息和混合自动重传请求应答HARQ-ACK信息；其中，所述载波接收指示信息，用于指示所述终端在第一载波上有接收到所述下行数据和/或在第二载波上未接收到所述下行数据；所述HARQ-ACK信息为在所述第一载波上所接收的所述下行数据的反馈信息。

Description

HARQ-ACK反馈方法、装置及通信设备 技术领域
本申请涉及无线通信技术领域但不限于无线通信技术领域，尤其涉及一种HARQ-ACK反馈方法、装置及通信设备。
背景技术
在非授权频谱的新空口(NR-U，New Radio in Unlicensed Spectrum)技术中，有一种一次性(one shot)混合自动重传请求应答(HARQ-ACK，Hybrid Automatic Repeat request acknowledgement)反馈方式。这种反馈方式中，终端在每次反馈HARQ-ACK信息时，需要一次性反馈所有混合自动重传请求(HARQ，Hybrid Automatic Repeat Request)进程的HARQ-ACK反馈信息。
发明内容
本申请实施例公开了一种HARQ-ACK反馈方法、装置及通信设备。
根据本公开实施例的第一方面，提供一种HARQ-ACK反馈方法，应用于终端，包括：
根据下行数据的接收状况，发送反馈信息，其中，所述反馈信息包括：载波接收指示信息和混合自动重传请求应答HARQ-ACK信息；
其中，所述载波接收指示信息，用于指示所述终端在第一载波上有接收到所述下行数据和/或在第二载波上未接收到所述下行数据；所述HARQ-ACK信息为在所述第一载波上所接收的所述下行数据的反馈信息。
根据本公开实施例的第二方面，还提供一种HARQ-ACK反馈方法， 应用于基站，包括：
接收反馈信息，其中，所述反馈信息包括：载波接收指示信息和HARQ-ACK信息；
根据所述载波指示信息，确定所述终端在第一载波上有接收到所述下行数据和/或在第二载波上未接收到所述下行数据；
根据所述HARQ-ACK信息确定在所述第一载波上所接收的所述下行数据的接收状况。
根据本公开实施例的第三方面，还提供一种HARQ-ACK反馈装置，所述装置包括第一发送模块，其中，
所述第一发送模块，被配置为根据下行数据的接收状况，发送反馈信息，其中，所述反馈信息包括：载波接收指示信息和HARQ-ACK信息；
其中，所述载波接收指示信息，用于指示所述终端在第一载波上有接收到所述下行数据和/或在第二载波上未接收到所述下行数据；所述HARQ-ACK信息为在所述第一载波上所接收的所述下行数据的反馈信息。
根据本公开实施例的第四方面，还提供一种HARQ-ACK反馈装置，所述装置包括第二接收模块和确定模块，其中，
所述第二接收模块，用于接收反馈信息，其中，所述反馈信息包括：载波接收指示信息和HARQ-ACK信息；
所述确定模块，用于根据所述载波指示信息，确定所述终端在第一载波上有接收到所述下行数据和/或在第二载波上未接收到所述下行数据；根据所述HARQ-ACK信息确定在所述第一载波上所接收的所述下行数据的接收状况。
根据本公开实施例的第五方面，提供一种通信设备，包括：
天线；
存储器；
处理器，分别与所述天线及存储器连接，用于通过执行存储在所述存储器上的可执行程序，控制所述天线收发无线信号，并能够执行前述任一技术方案提供的HARQ-ACK反馈方法的步骤。
本公开实施例中，根据下行数据的接收状况，可以向基站发送反馈信息，其中，所述反馈信息包括：载波接收指示信息和混合自动重传请求应答HARQ-ACK信息；其中，所述载波接收指示信息，用于指示所述终端在第一载波上有接收到所述下行数据和/或在第二载波上未接收到所述下行数据，这里，所述载波接收指示信息指示了所述终端在第一载波上有接收到所述下行数据和/或在第二载波上未接收到所述下行数据的接收状况，所述基站在接收到反馈信息后，能够准确确定各个载波上是否接收到下行数据。所述HARQ-ACK信息为在所述第一载波上所接收的所述下行数据的反馈信息。这里，向基站发送的反馈信息为在所述第一载波上所接收的所述下行数据的反馈信息，而不包括在所述第二载波上未接收的所述下行数据的反馈信息。一方面，由于所述载波接收指示信息已经对所述第二载波上未接收到所述下行数据的接收状况进行了指示，基站能够基于所述载波接收指示信息就能够确定所述第二载波上没有接收到所述下行数据的状况，相当于进行了下行数据接收情况的反馈，终端无需再反馈第二载波上HARQ-ACK进程的HARQ-ACK信息，减少了传输HARQ-ACK信息时所占用的大量比特位数，节省了信令开销；另一方面，所述基站在接收到反馈信息后，能够基于HARQ-ACK信息准确确定所述第一载波上接收到的下行数据。
附图说明
图1为本公开实施例提供的一种无线通信系统的结构示意图；
图2为本公开一个实施例提供的一种下行数据传输的示意图；
图3为本公开一个实施例提供的一种HARQ-ACK反馈方法示意图；
图4为本公开一个实施例提供的一种HARQ-ACK反馈方法示意图；
图5为本公开一个实施例提供的一种HARQ-ACK反馈方法示意图；
图6为本公开一个实施例提供的一种HARQ-ACK反馈方法示意图；
图7为本公开一个实施例提供的一种HARQ-ACK反馈方法示意图；
图8为本公开一个实施例提供的一种HARQ-ACK反馈方法示意图；
图9为本公开一个实施例提供的一种HARQ-ACK反馈方法示意图；
图10为本公开一个实施例提供的一种HARQ-ACK反馈方法示意图；
图11为本公开一个实施例提供的一种HARQ-ACK反馈装置示意图；
图12为本公开一个实施例提供的一种HARQ-ACK反馈装置示意图；
图13为本公开一个实施例提供的一种终端的结构示意图；
图14为本公开一个实施例提供的一种基站的结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本申请实施例相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本申请实施例的一些方面相一致的装置和方法的例子。
在本公开实施例使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开实施例。在本公开实施例和所附权利要求书中所使用的单数形式的“一种”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开实施例可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开实施例范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”及“若”可以被解释成为“在……时”或“当……时”或“响应于确定”。
请参考图1，其示出了本公开实施例提供的一种无线通信系统的结构示意图。如图1所示，无线通信系统是基于蜂窝移动通信技术的通信系统，该无线通信系统可以包括：若干个终端11以及若干个基站12。
其中，终端11可以是指向用户提供语音和/或数据连通性的设备。终端11可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，终端11可以是物联网终端，如传感器设备、移动电话(或称为“蜂窝”电话)和具有物联网终端的计算机，例如，可以是固定式、便携式、袖珍式、手持式、计算机内置的或者车载的装置。例如，站(Station，STA)、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点、远程终端(remote terminal)、接入终端(access terminal)、用户装置(user terminal)、用户代理(user agent)、用户设备(user device)、或用户终端(user equipment，UE)。或者，终端11也可以是无人飞行器的设备。或者，终端11也可以是车载设备，比如，可以是具有无线通信功能的行车电脑，或者是外接行车电脑的无线通信设备。或者，终端11也可以是路边设备，比如，可以是具有无线通信功能的路灯、信号灯或者其它路边设备等。
基站12可以是无线通信系统中的网络侧设备。其中，该无线通信系统可以是第四代移动通信技术(the 4th generation mobile communication，4G)系统，又称长期演进(Long Term Evolution，LTE)系统；或者，该无线通 信系统也可以是5G系统，又称新空口(new radio，NR)系统或5G NR系统。或者，该无线通信系统也可以是5G系统的再下一代系统。其中，5G系统中的接入网可以称为NG-RAN(New Generation-Radio Access Network，新一代无线接入网)。或者，MTC系统。
其中，基站12可以是4G系统中采用的演进型基站(eNB)。或者，基站12也可以是5G系统中采用集中分布式架构的基站(gNB)。当基站12采用集中分布式架构时，通常包括集中单元(central unit，CU)和至少两个分布单元(distributed unit，DU)。集中单元中设置有分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层、无线链路层控制协议(Radio Link Control，RLC)层、媒体访问控制(Media Access Control，MAC)层的协议栈；分布单元中设置有物理(Physical，PHY)层协议栈，本公开实施例对基站12的具体实现方式不加以限定。
基站12和终端11之间可以通过无线空口建立无线连接。在不同的实施方式中，该无线空口是基于第四代移动通信网络技术(4G)标准的无线空口；或者，该无线空口是基于第五代移动通信网络技术(5G)标准的无线空口，比如该无线空口是新空口；或者，该无线空口也可以是基于5G的更下一代移动通信网络技术标准的无线空口。
在一些实施例中，终端11之间还可以建立E2E(End to End，端到端)连接。比如车联网通信(vehicle to everything，V2X)中的V2V(vehicle to vehicle，车对车)通信、V2I(vehicle to Infrastructure，车对路边设备)通信和V2P(vehicle to pedestrian，车对人)通信等场景。
在一些实施例中，上述无线通信系统还可以包含网络管理设备13。
若干个基站12分别与网络管理设备13相连。其中，网络管理设备13可以是无线通信系统中的核心网设备，比如，该网络管理设备13可以是演进的数据分组核心网(Evolved Packet Core，EPC)中的移动性管理实体 (Mobility Management Entity，MME)。或者，该网络管理设备也可以是其它的核心网设备，比如服务网关(Serving GateWay，SGW)、公用数据网网关(Public Data Network GateWay，PGW)、策略与计费规则功能单元(Policy and Charging Rules Function，PCRF)或者归属签约用户网络侧设备(Home Subscriber Server，HSS)等。对于网络管理设备13的实现形态，本公开实施例不做限定。
为了更好地理解本公开任一个实施例所描述的技术方案，首先，通过一个实施例对一种一次性HARQ-ACK反馈的方法进行说明。
在一个实施例中，终端每次在反馈HARQ-ACK信息时，会一次性反馈所有HARQ进程的HARQ-ACK反馈信息。这里，所有HARQ进程包括被调度的HARQ进程和没有被调度的HARQ进程。例如，当最大下行链路的HARQ进程数被配置为16个时，终端就需要每次在反馈HARQ-ACK信息时，反馈16个HARQ进程的HARQ-ACK信息。
这里，如果基站给终端配置了多个载波，那么终端每次在进行HARQ-ACK反馈时，需要将多个载波的所有配置的HARQ进程的HARQ-ACK信息都向基站进行反馈。例如，基站给终端配置了M个载波，每个载波配置了K个下行HARQ进程，那么终端在每次发送HARQ-ACK反馈信息时，就需要向基站反馈M*K个HARQ进程的HARQ-ACK信息。这里，M和K都为大于0的正整数。如图2所示，基站给终端配置了4个载波，分别为载波1、载波2、载波3和载波4。每个载波上配置的下行HARQ进程数为8个，进程编号分别为“0”、“1”、“2”、“3”、“4”、“5”、“6”、“7”。假定每个HARQ进程的HARQ-ACK信息对应为1个比特(bit)，那么终端在每次进行一次性HARQ-ACK反馈时，需要反馈4*8＝32比特。
这里，基站虽然给终端配置了多个载波，但并不表示在某个时间段内，终端在每个载波上一定有下行数据传输。例如，如图2所示，载波4上就 没有下行数据传输。在终端要反馈一次性HARQ-ACK反馈所对应的物理下行共享信道(PDSCH，Physical Downlink Shared Channel)传输区间内，可能有些载波上根本没有相应的下行数据传输，或者终端在有些载波上根本没有接收到相应的PDSCH数据块。例如，有可能基站在该载波上发送了1个或者几个PDSCH数据块，但是终端漏检了这1个或者几个PDSCH数据块。如果针对对应的PDSCH传输区间内没有接收到实际的PDSCH数据块的传输的载波，终端也要反馈全部K个HARQ进程的HARQ-ACK信息，将会造成很大的传输资源浪费。
需要说明的是，这里的传输区间可以是基站进行T次PDSCH调度使用资源的所在区间。每次PDSCH调度可以是对应一个HARQ进程，T次PDSCH调度可以对应T个HARQ进程。其中，T为大于等于1的正整数。例如，传输区间为基站进行11次PDSCH调度使用资源的所在区间。这里，11次PDSCH调度可以对应11个连续的HARQ进程。例如，11次PDSCH调度包括编号为1至11的共11个连续的HARQ进程。这里，T的取值可以是调整的。例如，T的取值可以为“5”、“8”、“11”等，基站可以基于使调度效率保持最高的PDSCH调度算法确定N的取值。
如图3所示，本公开一个实施例提供一种HARQ-ACK反馈方法，应用于终端，该方法包括：
步骤S310：根据下行数据的接收状况，向基站发送反馈信息，其中，反馈信息包括：载波接收指示信息和HARQ-ACK信息；
其中，载波接收指示信息，用于指示终端在第一载波上有接收到下行数据和/或在第二载波上未接收到下行数据；HARQ-ACK信息为在第一载波上所接收的下行数据的反馈信息。
在本实施例中，终端可以是移动终端；基站和终端可以是机器类型通信(MTC，Machine Type Communication)系统中的MTC设备。
在本实施例中，下行数据可以是基站发送给终端的传输块(TB，Transmission Block)。这里，下行数据可以是一种包含信息内容的数据传输块；不同的传输块可以包含不同的信息内容。这里，接收状况可以是指终端是否接收到下行数据的信息。这里，确定终端是否接收到下行数据可以是确定终端在基站给终端配置的载波上是否接收到下行数据。例如，如图2所示，终端可以确认在载波1、载波2、载波3上接收到了下行数据，在载波4上并没有接收到下行数据。
在本实施例中，如图2所示，第一载波是UE有接收到下行数据的载波。例如，载波1、载波2和载波3。第二载波是UE没有接收到下行数据的载波。例如，载波4。这里，载波接收指示信息可以是通过比特位的取值来指示有接收到下行数据和未接收到下行数据的载波。例如，基站给终端配置的载波包括载波1、载波2、载波3和载波4，载波接收指示信息通过4个比特位来指示在第一载波上有接收到下行数据和/或在第二载波上未接收到下行数据。且当对应载波上接收到下行数据时，该载波对应的比特位可以取“1”，当载波上没有接收到下行数据时，该载波对应的比特位可以取“0”。则当4个比特位中各个比特位的取值为“1”、“1”、“1”、“0”时(即编码为“1110”)，载波接收指示信息用于指示在载波1、载波2、载波3上接收到了下行数据，在载波4上没有接收到下行数据。这里，载波1、载波2和载波3为前述第一载波，载波4为前述第二载波。基站在接收到终端发送的反馈信息后，就能够基于载波接收指示信息确定每个载波上下行数据的接收状况。
在一个实施例中，载波接收指示信息可以通过比特位进行指示，每个比特位可以指示一个载波。当载波接收指示信息对应的比特位为“1”时，该载波可以为第一载波，HARQ-ACK信息中会包含该比特位对应的第一载波上的所有HARQ-ACK进程的HARQ-ACK反馈信息。当载波接收指示信 息对应的比特位为“0”时，该载波可以为第二载波，HARQ-ACK信息中将不会包含该比特位对应的第二载波上的任一HARQ-ACK进程的HARQ-ACK反馈信息。如此，对于UE没有接收到下行数据的第二载波，UE将不反馈该第二载波上HARQ-ACK进程对应的HARQ-ACK信息，从而可以降低HARQ-ACK反馈信息的开销。同时，基站通过接收载波接收指示信息对应的第一编码序列，解调出M个比特(以M为例进行说明)后，根据M个比特位中比特位指示为“1”值的比特数，即可获知HARQ-ACK信息对应的第二编码序列指示的HARQ-ACK信息的比特数，从而准确地解码第二编码序列。并且能根据M个比特的“0”“1”序列得知该HARQ-ACK信息对应的是哪些载波。例如，当解码出来的M个比特的值是“1101”时，则可得知HARQ-ACK信息包含3个载波的HARQ-ACK反馈信息。假定每个载波上的下行HARQ进程为8，每个HARQ进程对应1比特HARQ-ACK反馈信息，那么该HARQ-ACK信息比特数为3*8*1＝24比特。并且，该HARQ-ACK信息包含的是对应于载波1、载波2和载波4的HARQ-ACK反馈信息。
在本实施例中，第一载波为UE有接收到下行数据的载波的泛指，可包括：一个或多个载波。基站给终端配置的载波包括载波1、载波2、载波3和载波4，终端在载波1、载波2和载波3上接收到了下行数据，则在第一载波上接收的下行数据的反馈信息包括在载波1、载波2和载波3上接收到的下行数据的反馈信息。这里，在第一载波上所接收的下行数据的反馈信息包含基站给终端的第一载波配置的HARQ进程的反馈信息。例如，如图2所示，基站给终端配置了4个载波，每个载波配置了8个HARQ进程。其中，第一载波包括载波1、载波2和载波3，则在第一载波上所接收的下行数据的反馈信息包括24个HARQ进程的反馈信息。每个HARQ进程的反馈信息可以包括N或A。这里，N为否认指示符NACK的简写，用于表 征终端未成功接收到对应下行数据的数据接收状态；A为确认指示符ACK的简写，用于表征终端成功接收到对应下行数据的数据接收状态。这里，可支持多个HARQ进程(process)。例如，最多可以支持8个HARQ进程。每个调度的传输块可以对应一个HARQ进程。每个HARQ进程需要一个HARQ进程编号进行标记。例如，8个HARQ进程需要8个HARQ进程编号进行标记。这里，8个HARQ进程可以依次通过HARQ进程编号“0”、“1”、“2”、“3”、“4”、“5”、“6”、“7”进行标记。例如，基站通过载波1给终端发送了4个传输块，载波1上的HARQ进程分别为编号“0”、“1”、“2”、“3”的HARQ进程，4个HARQ进程对应的反馈信息为AAAN，在表征终端确认接收到了3个传输块，有一个传输块没有正确接收。基站在接收到终端发送的HARQ-ACK反馈信息后可以确定第一载波上的下行数据接收状况。
在一个实施例中，可以是基站为终端配置了M(M为大于等于0的正整数)个载波，且配置为一次性HARQ-ACK反馈方式。在一次性HARQ-ACK反馈方式中，终端通过载波接收指示信息上报M个比特，该M个比特分别对应M个载波，用于表征该载波上有没有下行数据传输(或PDSCH的调度)。可以是以比特位取值为“0”时表示无下行数据传输，比特位取值为“1”时表示有下行数据传输。对于在某次一次性HARQ-ACK反馈方式中所对应的PDSCH传输时间区间内有PDSCH调度的第一载波，其对应的M个比特位中的对应比特位将置“1”，终端将反馈该第一载波上配置的所有下行HARQ进程对应的HARQ-ACK反馈；对于没有PDSCH调度的第二载波，其对应的M个比特中的对应比特位将置“0”，终端将不会反馈该第二载波上配置的任意下行HARQ进程对应的HARQ-ACK反馈。
本公开实施例中，根据下行数据的接收状况，向基站发送反馈信息，其中，反馈信息包括：载波接收指示信息和HARQ-ACK信息；其中，载 波接收指示信息，用于指示终端在第一载波上有接收到下行数据和/或在第二载波上未接收到下行数据，这里，载波接收指示信息指示了终端在第一载波上有接收到下行数据和/或在第二载波上未接收到下行数据的接收状况，基站在接收到反馈信息后，能够准确确定各个载波上是否接收到下行数据。HARQ-ACK信息为在第一载波上所接收的下行数据的反馈信息。这里，向基站发送的反馈信息为在第一载波上所接收的下行数据的反馈信息，而不包括在第二载波上未接收的下行数据的反馈信息。一方面，由于载波接收指示信息已经对第二载波上未接收到下行数据的接收状况进行了指示，基站能够基于载波接收指示信息就能够确定第二载波上没有接收到下行数据的状况，相当于进行了下行数据接收情况的反馈，终端无需再反馈第二载波上HARQ-ACK进程的HARQ-ACK信息，减少了传输HARQ-ACK信息时所占用的大量比特位数，节省了信令开销另一方面，基站在接收到反馈信息后，能够基于HARQ-ACK信息准确确定第一载波上接收到的下行数据。
如图4所示，本公开一个实施例提供一种HARQ-ACK反馈方法，应用于终端，该方法还包括：
步骤S410，接收基站发送的HARQ进程配置信息；其中，HARQ进程配置信息用于指示在第一载波和第二载波上分别配置的HARQ进程的数量N；其中，N为大于1的正整数；HARQ-ACK信息为第一载波上N个HARQ进程的反馈信息。
在一个实施例中，接收HARQ进程配置信息可以是在向基站发送反馈信息之前。这里，还可以是在向基站发送反馈信息的过程中，接收基站发送的HARQ进程配置信息，对HARQ进程配置信息进行更新。
在本实施例中，HARQ进程配置信息可以是给每个载波进行HARQ进程配置的信息。HARQ进程配置信息可以包括每个载波上配置的HARQ进 程的数量N。例如，可以给每个载波配置8个或16个HARQ进程。这里，需要说明的是，各个载波上配置的最大进程数N可以相同或者不相同。例如，载波1配置8个HARQ进程，载波2配置16个HARQ进程。如图2所示，基站给每个载波配置了8个HARQ进程，8个HARQ进程的编号分别对应为“0”、“1”、“2”、“3”、“4”、“5”、“6”、“7”。这里，HARQ-ACK信息可以是指第一载波上是否接收到下行数据的反馈信息。例如，每个传输块对应1个HARQ进程，则HARQ-ACK信息可以是指第一载波上是否接收到传输块的反馈信息。如图2所示，在载波1上，配置了8个HARQ进程，就会有8个HARQ进程的反馈信息。需要说明的是，这里，第一载波包括载波1、载波2和载波3，HARQ-ACK信息包括了载波1、载波2和载波3上共24个HARQ进程的反馈信息。基站在接收到终端发送的反馈信息后，就可以基于HARQ-ACK信息确定各个载波上的下行数据传输状况。
如图5所示，本公开一个实施例提供一种HARQ-ACK反馈方法，应用于终端，该方法还包括：
步骤S510，接收基站发送的载波配置信息；其中，载波配置信息包括：载波数量M和载波索引；M为第一载波和第二载波的总个数；M为大于1的正整数。
在一个实施例中，接收基站发送的载波配置信息可以是在向基站发送反馈信息之前。这里，还可以是在向基站发送反馈信息的过程中，接收基站发送的载波配置信息，对载波配置信息进行更新。
在本实施例中，载波配置信息可以是基站针对基站与终端之间进行数据传输所使用的载波资源进行配置的信息。基站可以对载波的数量进行统一配置。例如，如图2所示，基站配置了4个载波，分别为载波1、载波2、载波3和载波4。基站在进行载波配置时，通过在调度信息中指示载波索引 来选择其中若干个载波来发送数据，而其余的载波不发送数据。这里，载波索引可以是通过索引比特位进行设置。例如，当索引比特位设置为“001”、“010”、“011”、“100”时，可以选择载波索引为“001”、“010”、“011”和“100”的载波发送数据。
在本实施例中，终端可以是按照载波索引的顺序对载波指示信息及HARQ-ACK信息进行排列，然后分别对载波指示信息和HARQ-ACK信息进行编码，获得经过编码的反馈信息。基站在接收到终端发送的经过编码的反馈信息后，解码反馈信息，获得载波指示信息及HARQ-ACK信息。由于载波指示信息指示了终端在第一载波上有接收到下行数据和/或在第二载波上未接收到下行数据的接收状况，基站在接收到反馈信息后，能够基于载波索引的顺序确定用于传输数据的各个载波上是否接收到下行数据。对于有接收到下行数据的第一载波，基站可以基于载波索引的顺序进一步确定每个第一载波上下行数据的具体接收情况。例如，通过4个载波进行下行数据传输，每个载波上配置了8个HARQ进程，载波指示信息对应的编码为“1011”，HARQ-ACK信息对应的编码为“11110111 11111111 01111111”。基站基于编码顺序可以确定，终端接收下行数据的载波为载波1、载波3和载波4，且在载波2上没有接收到下行数据。同时，基于HARQ-ACK信息对应的编码可以确定“11110111”为载波1上配置的HARQ进程对应的反馈信息，“11111111”为载波3上配置的HARQ进程对应的反馈信息，“01111111”为载波4上配置的HARQ进程对应的反馈信息。上述编码可以根据编码规则的不同采用不同的方式进行编码获得，不同的编码方式获得的编码可以不同。
如图6所示，本公开一个实施例提供一种HARQ-ACK反馈方法，应用于终端，该方法还包括：
步骤S610，对载波接收指示信息进行编码，获得第一编码序列；对 HARQ-ACK信息进行编码，获得第二编码序列；
步骤S310中，向基站发送反馈信息，包括：
向基站发送第一编码序列和第二编码序列。
本实施例中，第一编码序列和第二编码序列为分开编码的编码序列；例如，载波数量M＝4，每个载波上的HARQ进程数为16，其中，调度了HARQ进程的载波有3个，那么载波接收指示信息对应的4比特需要与HARQ-ACK信息对应的的48个比特分开编码，获得不同的第一编码序列和第二编码序列。这里，第一编码序列和第二编码序列可以采用不同的编码规则进行编码。
这里，第一编码序列可以与除第二编码序列以外的其它编码序列一起编码。第一编码序列也可以是单独编码。这里，单独编码可以是在编码时，使得第一编码序列只指示载波接收指示信息，不指示其他类型的信息。这里，将载波接受指示信息与HARQ-ACK信息分别编码为第一编码序列和第二编码序列，如此，基站能根据第一编码序列解调出来的M比特(这里，以解调出来的比特位为M个比特位为例进行说明)，准确得知第二编码序列所对应的HARQ-ACK信息的比特数，从而能够正确解码该第二编码序列比特，获得HARQ-ACK信息。
在本实施例中，载波接收指示信息包括M个比特；其中，
M个比特中与第一载波对应的比特具有第一比特值；
M个比特中与第二载波对应的比特具有第二比特值。
这里，第一比特值不同于第二比特值。例如，第一比特值取值为“1”，第二比特值取值为“0”。如图2所示，当第一编码序列对应4个比特，且编码为“1110”时，基站在接收到终端发送的编码序列后，可以基于第一编码序列各个比特位的不同取值确定终端在载波1、载波2、载波3和载波4上接收下行数据的情况。这里，由于编码为“1110”，则基站可以确定终 端在载波1、载波2和载波3上接收到了下行数据，终端在载波4上没有接收到下行数据。
本实施例中，第一载波对应的HARQ-ACK信息，按照第一载波的载波索引从小到大排序。
这里，可以是第一载波对应的HARQ-ACK信息，在HARQ-ACK信息中按照第一载波的载波索引从小到大排序。例如，第一载波的载波索引为“001”、“010”和“011”，载波索引为“001”的第一载波对应的HARQ-ACK信息为“01111111”，载波索引为“010”的第一载波对应的HARQ-ACK信息为“11111111”，载波索引为“011”的第一载波对应的HARQ-ACK信息为“11110111”。则第一载波对应的HARQ-ACK信息按照第一载波的载波索引从小到大排序获得的HARQ-ACK信息的编码序列为“01111111 11111111 111101111”。HARQ-ACK信息按照第一载波的载波索引从小到大排序方便基站进行解码。基于载波索引的顺序准确获得各个第一载波的HARQ-ACK信息。上述编码可以根据编码规则的不同采用不同的方式进行编码获得，不同的编码方式获得的编码可以不同。
如图7所示，本公开一个实施例提供一种HARQ-ACK反馈方法，应用于基站，包括：
步骤S710，接收终端发送的反馈信息，其中，反馈信息包括：载波接收指示信息和HARQ-ACK信息；
在本实施例中，终端可以是移动终端；基站和终端可以是机器类型通信(MTC，Machine Type Communication)系统中的MTC设备。
步骤S720，根据载波指示信息，确定终端在第一载波上有接收到下行数据和/或在第二载波上未接收到下行数据；根据HARQ-ACK信息确定在第一载波上所接收的下行数据的接收状况。
在本实施例中，下行数据可以是基站发送给终端的传输块(TB， Transmission Block)。这里，下行数据可以是一种包含信息内容的数据传输块；不同的传输块可以包含不同的信息内容。这里，接收状况可以是指终端是否接收到下行数据的信息。这里，确定终端是否接收到下行数据可以是确定终端在基站给终端配置的载波上是否接收到下行数据。例如，如图2所示，终端可以确认在载波1、载波2、载波3上接收到了下行数据，在载波4上并没有接收到下行数据。
在本实施例中，如图2所示，第一载波可以是接收到下行数据的载波。例如，载波1、载波2和载波3。第二载波可以是没有接收到下行数据的载波。例如，载波4。这里，载波接收指示信息可以是通过比特位的取值来指示在第一载波上有接收到下行数据和/或在第二载波上未接收到下行数据。例如，基站给终端配置的载波包括载波1、载波2、载波3和载波4，载波接收指示信息通过4个比特位来指示在第一载波上有接收到下行数据和/或在第二载波上未接收到下行数据。且当对应载波上接收到下行数据时，该载波对应的比特位可以取“1”，当载波上没有接收到下行数据时，该载波对应的比特位可以取“0”。则当4个比特位中各个比特位的取值为“1”、“1”、“1”、“0”时(即编码为“1110”)，载波接收指示信息用于指示在载波1、载波2、载波3上接收到了下行数据，在载波4上没有接收到下行数据。这里，载波1、载波2和载波3为前述第一载波，载波4为前述第二载波。基站在接收到终端发送的反馈信息后，就能够基于载波接收指示信息确定每个载波上下行数据的接收状况。
在一个实施例中，载波接收指示信息可以通过比特位进行指示，每个比特位可以指示一个载波。当载波接收指示信息对应的比特位为“1”时，该载波可以为第一载波，HARQ-ACK信息中会包含该比特位对应的第一载波上的所有HARQ-ACK进程的HARQ-ACK反馈信息。当载波接收指示信息对应的比特位为“0”时，该载波可以为第二载波，HARQ-ACK信息中 将不会包含该比特位对应的第二载波上的任一HARQ-ACK进程的HARQ-ACK反馈信息。如此，对于UE没有接收到下行数据的第二载波，UE将不反馈该第二载波上HARQ-ACK进程对应的HARQ-ACK信息，从而可以降低HARQ-ACK反馈信息的开销。同时，基站通过接收载波接收指示信息对应的第一编码序列，解调出M个比特(以M为例进行说明)后，根据M个比特位中比特位指示为“1”值的比特数，即可获知HARQ-ACK信息对应的第二编码序列指示的HARQ-ACK信息的比特数，从而准确地解码第二编码序列。并且能根据M个比特的“0”“1”序列得知该HARQ-ACK信息对应的是哪些载波。例如，当解码出来的M个比特的值是“1101”时，则可得知HARQ-ACK信息包含3个载波的HARQ-ACK反馈信息。假定每个载波上的下行HARQ进程为8，每个HARQ进程对应1比特HARQ-ACK反馈信息，那么该HARQ-ACK信息比特数为3*8*1＝24比特。并且，该HARQ-ACK信息包含的是对应于载波1、载波2和载波4的HARQ-ACK反馈信息。
在本实施例中，在第一载波上所接收的下行数据的反馈信息可以是在多个载波上接收的下行数据的反馈信息。例如，基站给终端配置的载波包括载波1、载波2、载波3和载波4，终端在载波1、载波2和载波3上接收到了下行数据，则在第一载波上接收的下行数据的反馈信息包括在载波1、载波2和载波3上接收到的下行数据的反馈信息。这里，在第一载波上所接收的下行数据的反馈信息可以是指基站给终端的第一载波配置的HARQ进程的反馈信息。例如，如图2所示，基站给终端配置了4个载波，每个载波配置了8个HARQ进程。其中，第一载波包括载波1、载波2和载波3，则在第一载波上所接收的下行数据的反馈信息包括24个HARQ进程的反馈信息。每个HARQ进程的反馈信息可以包括N或A。这里，N为否认指示符NACK的简写，用于表征终端未成功接收到对应下行数据的状 态；A为确认指示符ACK的简写，用于表征终端成功接收到对应下行数据的数据接收状态。这里，可支持多个HARQ进程(process)。例如，最多可以支持8个HARQ进程。每个调度的传输块可以对应一个HARQ进程。每个HARQ进程需要一个HARQ进程编号进行标记。例如，8个HARQ进程需要8个HARQ进程编号进行标记。这里，8个HARQ进程可以依次通过HARQ进程编号“0”、“1”、“2”、“3”、“4”、“5”、“6”、“7”进行标记。例如，基站通过载波1给终端发送了4个传输块，载波1上的HARQ进程分别为编号“0”、“1”、“2”、“3”的HARQ进程，4个HARQ进程对应的反馈信息为AAAN，在表征终端确认接收到了3个传输块，有一个传输块没有接收到。基站在接收到终端发送的HARQ-ACK反馈信息后可以确定第一载波上的下行数据接收状况。
在一个实施例中，可以是基站为终端配置了M(M为大于等于0的正整数)个载波，且配置为一次性HARQ-ACK反馈方式。在一次性HARQ-ACK反馈方式中，终端通过载波接收指示信息上报M个比特，该M个比特分别对应M个载波，用于表征该载波上有没有下行数据传输(或PDSCH的调度)。可以是以比特位取值为“0”时表示无下行数据传输，比特位取值为1时表示有下行数据传输。对于在某次一次性HARQ-ACK反馈方式中所对应的PDSCH传输时间区间内有PDSCH调度的第一载波，其对应的M个比特位中的对应比特位将置“1”，终端将反馈该第一载波上配置的所有下行HARQ进程对应的HARQ-ACK反馈；对于没有PDSCH调度的第二载波，其对应的M个比特中的对应比特位将置“0”，终端将不会反馈该第二载波上配置的任意下行HARQ进程对应的HARQ-ACK反馈。
本公开实施例中，接收终端发送的反馈信息，其中，反馈信息包括：载波接收指示信息和HARQ-ACK信息；根据载波指示信息，确定终端在第一载波上有接收到下行数据和/或在第二载波上未接收到下行数据；这里， 载波接收指示信息指示了终端在第一载波上有接收到下行数据和/或在第二载波上未接收到下行数据的接收状况，基站在接收到反馈信息后，能够准确确定各个载波上是否接收到下行数据。根据HARQ-ACK信息确定在第一载波上所接收的下行数据的接收状况。这里，向基站发送的反馈信息为在第一载波上所接收的下行数据的反馈信息，而不包括在第二载波上未接收的下行数据的反馈信息。一方面，由于载波接收指示信息已经对第二载波上未接收到下行数据的接收状况进行了指示，基站能够基于载波接收指示信息就能够确定第二载波上没有接收到下行数据的状况，相当于进行了下行数据接收情况的反馈，终端无需再反馈第二载波上HARQ-ACK进程的HARQ-ACK信息，减少了传输HARQ-ACK信息时所占用的大量比特位数，节省了信令开销；另一方面，基站在接收到反馈信息后，能够基于HARQ-ACK信息准确确定第一载波上接收到的下行数据。
如图8所示，本公开一个实施例提供一种HARQ-ACK反馈方法，该方法还包括：
步骤S810，向终端发送HARQ进程配置信息；其中，HARQ进程配置信息用于指示在第一载波和第二载波上分别配置的HARQ进程的数量N；其中，N为大于1的正整数；HARQ-ACK信息为第一载波上N个HARQ进程的反馈信息。
在本实施例中，HARQ进程配置信息可以是给每个载波进行HARQ进程配置的信息。HARQ进程配置信息可以包括每个载波上配置的HARQ进程的数量N。例如，可以给每个载波配置8个或16个HARQ进程。这里，需要说明的是，各个载波上配置的最大进程数N可以相同或者不相同。例如，载波1配置8个HARQ进程，载波2配置16个HARQ进程。如图2所示，基站给每个载波配置了8个HARQ进程，8个HARQ进程的编号分别对应为“0”、“1”、“2”、“3”、“4”、“5”、“6”、“7”。这里，HARQ-ACK 信息可以是指第一载波上是否接收到下行数据的反馈信息。例如，每个传输块对应1个HARQ进程，则HARQ-ACK信息可以是指第一载波上是否接收到传输块的反馈信息。如图2所示，在载波1上，配置了8个HARQ进程，就会有8个HARQ进程的反馈信息。需要说明的是，这里，第一载波包括载波1、载波2和载波3，HARQ-ACK信息包括了载波1、载波2和载波3上共24个HARQ进程的反馈信息。基站在接收到终端发送的反馈信息后，就可以基于HARQ-ACK信息确定各个载波上的下行数据传输状况。
如图9所示，本公开一个实施例提供一种HARQ-ACK反馈方法，该方法还包括：
步骤S910，向终端发送载波配置信息；其中，载波配置信息包括：载波数量M和载波索引；M为第一载波和第二载波的总个数；M为大于1的正整数。
在本实施例中，载波配置信息可以是基站针对基站与终端之间进行数据传输所使用的载波资源进行配置的信息。基站可以对载波的数量进行统一配置。例如，如图2所示，基站配置了4个载波，分别为载波1、载波2、载波3和载波4。基站在进行载波配置时，通过在调度信息中只是载波索引来选择其中若干个载波来发送数据，而其余的载波不发送数据。这里，载波索引可以是通过索引比特位进行设置。例如，当索引比特位设置为“001”、“010”、“011”、“100”时，可以选择载波索引为“001”、“010”、“011”和“100”的载波发送数据。
在本实施例中，终端可以是按照载波索引的顺序对载波指示信息及HARQ-ACK信息进行排列，然后分别对载波指示信息和HARQ-ACK信息进行编码，获得经过编码的反馈信息。基站在接收到终端发送的经过编码的反馈信息后，解码反馈信息，获得载波指示信息及HARQ-ACK信息。由 于载波指示信息指示了终端在第一载波上有接收到下行数据和/或在第二载波上未接收到下行数据的接收状况，基站在接收到反馈信息后，能够基于载波索引的顺序确定用于传输数据的各个载波上是否接收到下行数据。对于有接收到下行数据的第一载波，基站可以基于载波索引的顺序进一步确定每个第一载波上下行数据的具体接收情况。例如，通过4个载波进行下行数据传输，每个载波上配置了8个HARQ进程，载波指示信息对应的编码为“1011111”，HARQ-ACK信息对应的编码序列为“11110111 11111111 01111111”。基站基于编码顺序可以确定，终端接收下行数据的载波为载波1、载波3和载波4，且在载波2上没有接收到下行数据。同时，基于HARQ-ACK信息对应的编码可以确定“11110111”为载波1上配置的HARQ进程对应的反馈信息，“11111111”为载波3上配置的HARQ进程对应的反馈信息，“01111111”为载波4上配置的HARQ进程对应的反馈信息。
如图10所示，本公开一个实施例提供一种HARQ-ACK反馈方法，在步骤S710中，接收终端发送的反馈信息，包括：
步骤S101，接收终端发送的第一编码序列和第二编码序列；其中，其中，第一编码序列为对载波接收指示信息进行编码获得的编码序列；第二编码序列为对HARQ-ACK信息进行编码获得的编码序列。
本实施例中，第一编码序列和第二编码序列为分开编码的编码序列；例如，载波数量M＝4，每个载波上的HARQ进程数为16，其中，调度了HARQ进程的载波有3个，那么载波接收指示信息对应的4比特需要与HARQ-ACK信息对应的48个比特分开编码，获得不同的第一编码序列和第二编码序列。
这里，第一编码序列可以与除第二编码序列以外的其它编码序列一起编码。第一编码序列也可以是单独编码，这里，单独编码可以是在编码时，使得第一编码序列只指示载波接收指示信息，不指示其他类型的信息。这 里，将载波接受指示信息与HARQ-ACK信息分别编码为第一编码序列和第二编码序列，如此，基站能根据第一编码序列解调出来的M比特(这里，以解码出来的第一编码序列包括M个比特位为例进行说明)，准确得知第二编码序列所对应的HARQ-ACK信息的比特数，从而能够正确解码该第二编码序列比特，获得HARQ-ACK信息。
在一个实施例中，其中，该方法还包括：
解码第一编码序列，获得携带载波指示信息的M个比特；
根据载波指示信息，确定终端在第一载波上有接收到下行数据和/或在第二载波上未接收到下行数据，包括：
当M个比特中的比特具有第一比特值时，确定终端在比特对应的第一载波上有接收到下行数据；
和/或，
当M个比特中的比特具有第二比特值时，确定终端在比特对应的第二载波上未收到下行数据。
这里，第一比特值不同于第二比特值。例如，第一比特值取值为“1”，第二比特值取值为“0”。如图2所示，当第一编码序列对应4个比特，且编码为“1110”时，基站在接收到终端发送的编码序列后，可以基于第一编码序列各个比特位的不同取值确定终端在载波1、载波2、载波3和载波4上接收下行数据的情况，这里，由于编码为“1110”，则基站可以确定终端在载波1、载波2和载波3上接收到了下行数据，终端在载波4上没有接收到下行数据。
在一个实施例中，该方法还包括：
解码第二编码序列，获得HARQ-ACK信息；
根据HARQ-ACK信息确定在第一载波上所接收的下行数据的接收状况，包括：
根据按照第一载波的载波索引从小到大排序的HARQ-ACK信息，确定在第一载波上所接收的下行数据的接收状况。
本实施例中，第一载波对应的HARQ-ACK信息，按照第一载波的载波索引从小到大排序。这里，可以是第一载波对应的HARQ-ACK信息，按照第一载波的载波索引从小到大排序。例如，第一载波的载波索引为“001”、“010”和“011”，载波索引为“001”的第一载波对应的HARQ-ACK信息为“01111111”，载波索引为“010”的第一载波对应的HARQ-ACK信息为“11111111”，载波索引为“011”的第一载波对应的HARQ-ACK信息为“11110111”。则第一载波对应的HARQ-ACK信息按照第一载波的载波索引从小到大排序获得的HARQ-ACK信息的编码序列为“01111111 11111111 11110111”。HARQ-ACK信息按照第一载波的载波索引从小到大排序方便基站进行解码，基于载波索引的顺序准确获得各个第一载波的HARQ-ACK信息。
如图11所示，本公开一个实施例提供一种HARQ-ACK反馈装置，该装置包括第一发送模块111，其中，
第一发送模块111，被配置为根据下行数据的接收状况，向基站发送反馈信息，其中，反馈信息包括：载波接收指示信息和HARQ-ACK信息；
其中，载波接收指示信息，用于指示终端在第一载波上有接收到下行数据和/或在第二载波上未接收到下行数据；HARQ-ACK信息为在第一载波上所接收的下行数据的反馈信息。
在一个实施例中，该装置还包括第一接收模块112，其中，
第一接收模块112，被配置为接收基站发送的HARQ进程配置信息；其中，HARQ进程配置信息用于指示在第一载波和第二载波上分别配置的HARQ进程的数量N；其中，N为大于1的正整数；
HARQ-ACK信息为第一载波上N个HARQ进程的反馈信息。
在一个实施例中，第一接收模块112，还被配置为接收基站发送的载波配置信息；其中，载波配置信息包括：载波数量M和载波索引；M为第一载波和第二载波的总个数；M为大于1的正整数。
在一个实施例中，该装置还包括编码模块113，其中，
编码模块113，被配置为对载波接收指示信息进行编码，获得第一编码序列；对HARQ-ACK信息进行编码，获得第二编码序列；
第一发送模块111，被配置为向基站发送第一编码序列和第二编码序列。
在一个实施例中，载波接收指示信息包括M个比特；其中，
M个比特中与第一载波对应的比特具有第一比特值；
M个比特中与第二载波对应的比特具有第二比特值。
在一个实施例中，第一载波对应的HARQ-ACK信息，按照第一载波的载波索引从小到大排序。
如图12所示，本公开一个实施例提供一种HARQ-ACK反馈装置，该装置包括第二接收模块120和确定模块121，其中，
第二接收模块120，用于接收终端发送的反馈信息，其中，反馈信息包括：载波接收指示信息和HARQ-ACK信息；
确定模块121，用于根据载波指示信息，确定终端在第一载波上有接收到下行数据和/或在第二载波上未接收到下行数据；根据HARQ-ACK信息确定在第一载波上所接收的下行数据的接收状况。
在一个实施例中，该装置还包括第二发送模块122，其中，
第二发送模块122，用于向终端发送HARQ进程配置信息；其中，HARQ进程配置信息用于指示在第一载波和第二载波上分别配置的HARQ进程的数量N；其中，N为大于1的正整数；
HARQ-ACK信息为第一载波上N个HARQ进程的反馈信息。
在一个实施例中，第二发送模块122，还用于向终端发送载波配置信息；其中，载波配置信息包括：载波数量M和载波索引；M为第一载波和第二载波的总个数；M为大于1的正整数。
在一个实施例中，第二接收模块120，还用于接收终端发送的第一编码序列和第二编码序列；其中，第一编码序列为对载波接收指示信息进行编码获得的编码序列；第二编码序列为对HARQ-ACK信息进行编码获得的编码序列。
在一个实施例中，其中，装置还包括解码模块123；其中，
解码模块123，用于解码第一编码序列，获得携带载波指示信息的M个比特；
确定模块121，还用于当M个比特中的比特具有第一比特值时，确定终端在比特对应的第一载波上有接收到下行数据；
和/或，
当M个比特中的比特具有第二比特值时，确定终端在比特对应的第二载波上未收到下行数据。
在一个实施例中，解码模块，还用于解码第二编码序列，获得HARQ-ACK信息；
确定模块122，还用于根据按照第一载波的载波索引从小到大排序的HARQ-ACK信息，确定在第一载波上所接收的下行数据的接收状况。
本公开实施例还提供一种通信设备，包括：
天线；
存储器；
处理器，分别与天线及存储器连接，用于通过执行存储在存储器上的可执行程序，控制天线收发无线信号，并能够执行前述任意实施例提供的一种HARQ-ACK反馈方法的步骤。
本实施例提供的通信设备可为前述的终端或基站。该终端可为各种人载终端或车载终端。基站可为各种类型的基站，例如，4G基站或5G基站等。
天线可为各种类型的天线、例如，3G天线、4G天线或5G天线等移动天线；天线还可包括：WiFi天线或无线充电天线等。
存储器可包括各种类型的存储介质，该存储介质为非临时性计算机存储介质，在通信设备掉电之后能够继续记忆存储其上的信息。
处理器可以通过总线等与天线和存储器连接，用于读取存储器上存储的可执行程序，例如，如图3至图10所示方法的至少其中之一。
如图13所示，本公开一个实施例提供一种终端的结构。
参照图13所示终端800本实施例提供一种终端800，该终端具体可是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图13，终端800可以包括以下一个或多个组件：处理组件802，存储器804，电源组件806，多媒体组件808，音频组件810，输入/输出(I/O)的接口812，传感器组件814，以及通信组件816。
处理组件802通常控制终端800的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件802可以包括一个或多个处理器820来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件802可以包括一个或多个模块，便于处理组件802和其他组件之间的交互。例如，处理组件802可以包括多媒体模块，以方便多媒体组件808和处理组件802之间的交互。
存储器804被配置为存储各种类型的数据以支持在设备800的操作。这些数据的示例包括用于在终端800上操作的任何应用程序或方法的指 令，联系人数据，电话簿数据，消息，图片，视频等。存储器804可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电源组件806为终端800的各种组件提供电力。电源组件806可以包括电源管理系统，一个或多个电源，及其他与为终端800生成、管理和分配电力相关联的组件。
多媒体组件808包括在终端800和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件808包括一个前置摄像头和/或后置摄像头。当设备800处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件810被配置为输出和/或输入音频信号。例如，音频组件810包括一个麦克风(MIC)，当终端800处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器804或经由通信组件816发送。在一些实施例中，音频组件810还包括一个扬声器，用于输出音频信号。
I/O接口812为处理组件802和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于： 主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件814包括一个或多个传感器，用于为终端800提供各个方面的状态评估。例如，传感器组件814可以检测到设备800的打开/关闭状态，组件的相对定位，例如组件为终端800的显示器和小键盘，传感器组件814还可以检测终端800或终端800一个组件的位置改变，用户与终端800接触的存在或不存在，终端800方位或加速/减速和终端800的温度变化。传感器组件814可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件814还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件814还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件816被配置为便于终端800和其他设备之间有线或无线方式的通信。终端800可以接入基于通信标准的无线网络，如Wi-Fi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件816经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，通信组件816还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，终端800可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器804，上述指令可由终端800的处理器 820执行以完成上述方法。例如，非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
该终端可以用于实现前述的方法，例如，如图3至图10所示方法。
如图13所示，本公开一个实施例提供一种基站的结构。例如，基站900可以被提供为一网络侧设备。参照图13，基站900包括处理组件922，其进一步包括一个或多个处理器，以及由存储器932所代表的存储器资源，用于存储可由处理组件922的执行的指令，例如应用程序。存储器932中存储的应用程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外，处理组件922被配置为执行指令，以执行上述方法前述任意方法，例如，如图2、图5、图6、图7和图8所示方法。
基站900还可以包括一个电源组件926被配置为执行基站900的电源管理，一个有线或无线网络接口950被配置为将基站900连接到网络，和一个输入输出(I/O)接口958。基站900可以操作基于存储在存储器932的操作系统，例如Windows ServerTM，Mac OS XTM，UnixTM,LinuxTM，FreeBSDTM或类似。
该无线网络接口950包括但不限于前述通信设备的天线。本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本申请的其它实施方案。本申请旨在涵盖本申请的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本申请的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本申请的真正范围和精神由下面的权利要求指出。
应当理解的是，本申请并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本申请的范围仅由所附的权利要求来限制。

Claims (21)

  1. 一种HARQ-ACK反馈方法，应用于终端，包括：
    根据下行数据的接收状况，发送反馈信息，其中，所述反馈信息包括：载波接收指示信息和混合自动重传请求应答HARQ-ACK信息；
    其中，所述载波接收指示信息，用于指示所述终端在第一载波上有接收到所述下行数据和/或在第二载波上未接收到所述下行数据；所述HARQ-ACK信息为在所述第一载波上所接收的所述下行数据的反馈信息。
  2. 根据权利要求1的方法，其中，所述方法，还包括：
    接收HARQ进程配置信息；其中，所述HARQ进程配置信息用于指示在所述第一载波和所述第二载波上分别配置的HARQ进程的数量N；其中，N为大于1的正整数；
    所述HARQ-ACK信息为所述第一载波上N个所述HARQ进程的反馈信息。
  3. 根据权利要求1的方法，其中，所述方法，还包括：
    接收载波配置信息；其中，所述载波配置信息包括：载波数量M和载波索引；所述M为所述第一载波和所述第二载波的总个数；所述M为大于1的正整数。
  4. 根据权利要求3的方法，其中，所述方法，还包括：
    对所述载波接收指示信息进行编码，获得第一编码序列；
    对所述HARQ-ACK信息进行编码，获得第二编码序列；
    所述发送反馈信息，包括：
    发送所述第一编码序列和所述第二编码序列。
  5. 根据权利要求3的方法，其中，所述载波接收指示信息包括M个比特；其中，
    所述M个比特中与所述第一载波对应的比特具有第一比特值；
    所述M个比特中与所述第二载波对应的比特具有第二比特值。
  6. 根据权利要求4的方法，其中，所述第一载波对应的所述HARQ-ACK信息，按照所述第一载波的载波索引从小到大排序。
  7. 一种HARQ-ACK反馈方法，应用于基站，包括：
    接收反馈信息，其中，所述反馈信息包括：载波接收指示信息和HARQ-ACK信息；
    根据所述载波指示信息，确定所述终端在第一载波上有接收到所述下行数据和/或在第二载波上未接收到所述下行数据；
    根据所述HARQ-ACK信息确定在所述第一载波上所接收的所述下行数据的接收状况。
  8. 根据权利要求7的方法，其中，所述方法，还包括：
    发送HARQ进程配置信息；其中，所述HARQ进程配置信息用于指示在所述第一载波和所述第二载波上分别配置的HARQ进程的数量N；其中，N为大于1的正整数；
    所述HARQ-ACK信息为所述第一载波上N个所述HARQ进程的反馈信息。
  9. 根据权利要求7的方法，其中，所述方法，还包括：
    发送载波配置信息；其中，所述载波配置信息包括：载波数量M和载波索引；所述M为所述第一载波和所述第二载波的总个数；所述M为大于1的正整数。
  10. 根据权利要求9的方法，其中，所述接收反馈信息，包括：
    接收第一编码序列和第二编码序列；其中，其中，所述第一编码序列为对所述载波接收指示信息进行编码获得的编码序列；所述第二编码序列为对所述HARQ-ACK信息进行编码获得的编码序列。
  11. 根据权利要求10的方法，其中，所述方法还包括：
    解码所述第一编码序列，获得携带所述载波指示信息的M个比特；
    所述根据所述载波指示信息，确定所述终端在第一载波上有接收到所述下行数据和/或在第二载波上未接收到所述下行数据，包括：
    当所述M个比特中的比特具有第一比特值时，确定所述终端在所述比特对应的所述第一载波上有接收到所述下行数据；
    和/或，
    当所述M个比特中的比特具有第二比特值时，确定所述终端在所述比特对应的所述第二载波上未收到所述下行数据。
  12. 根据权利要求10的方法，其中，所述方法还包括：
    解码所述第二编码序列，获得所述HARQ-ACK信息；
    所述根据所述HARQ-ACK信息确定在所述第一载波上所接收的所述下行数据的接收状况，包括：
    根据按照所述第一载波的载波索引从小到大排序的所述HARQ-ACK信息确定在所述第一载波上所接收的所述下行数据的接收状况。
  13. 一种HARQ-ACK反馈装置，所述装置包括第一发送模块，其中，
    所述第一发送模块，被配置为根据下行数据的接收状况，发送反馈信息，其中，所述反馈信息包括：载波接收指示信息和HARQ-ACK信息；
    其中，所述载波接收指示信息，用于指示所述终端在第一载波上有接收到所述下行数据和/或在第二载波上未接收到所述下行数据；所述HARQ-ACK信息为在所述第一载波上所接收的所述下行数据的反馈信息。
  14. 根据权利要求13的装置，其中，所述第一接收模块，还被配置为接收载波配置信息；其中，所述载波配置信息包括：载波数量M和载波索引；所述M为所述第一载波和所述第二载波的总个数；所述M为大于1的正整数。
  15. 根据权利要求14的装置，其中，所述装置还包括编码模块，其中，
    所述编码模块，被配置为对所述载波接收指示信息进行编码，获得第一编码序列；对所述HARQ-ACK信息进行编码，获得第二编码序列；
    所述第一发送模块，被配置为发送所述第一编码序列和所述第二编码序列。
  16. 根据权利要求14的装置，其中，所述载波接收指示信息包括M个比特；其中，
    所述M个比特中与所述第一载波对应的比特具有第一比特值；
    所述M个比特中与所述第二载波对应的比特具有第二比特值。
  17. 一种HARQ-ACK反馈装置，所述装置包括第二接收模块和确定模块，其中，
    所述第二接收模块，用于接收反馈信息，其中，所述反馈信息包括：载波接收指示信息和HARQ-ACK信息；
    所述确定模块，用于根据所述载波指示信息，确定所述终端在第一载波上有接收到所述下行数据和/或在第二载波上未接收到所述下行数据；根据所述HARQ-ACK信息确定在所述第一载波上所接收的所述下行数据的接收状况。
  18. 根据权利要求17的装置，其中，所述第二发送模块，还用于发送载波配置信息；其中，所述载波配置信息包括：载波数量M和载波索引；所述M为所述第一载波和所述第二载波的总个数；所述M为大于1的正整数。
  19. 根据权利要求18的装置，其中，所述第二接收模块，用于接收第一编码序列和第二编码序列；其中，所述第一编码序列为对所述载波接收指示信息进行编码获得的编码序列；所述第二编码序列为对所述HARQ-ACK信息进行编码获得的编码序列。
  20. 根据权利要求19的装置，其中，所述装置还包括解码模块；其中，
    所述解码模块，用于解码所述第一编码序列，获得携带载波指示信息的M个比特；
    所述确定模块，还用于当所述M个比特中的比特具有第一比特值时，确定所述终端在所述比特对应的所述第一载波上有接收到所述下行数据；
    和/或，
    当所述M个比特中的比特具有第二比特值时，确定所述终端在所述比特对应的所述第二载波上未收到所述下行数据。
  21. 一种通信设备，其中，包括：
    天线；
    存储器；
    处理器，分别与所述天线及存储器连接，被配置为通执行存储在所述存储器上的计算机可执行指令，控制所述天线的收发，并能够实现权利要求1至6或权利要求7至12任一项提供的方法。
PCT/CN2019/119521 2019-11-19 2019-11-19 Harq-ack反馈方法、装置及通信设备 WO2021097682A1 (zh)

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