WO2020192772A1 - 一种通信方法及装置 - Google Patents

一种通信方法及装置 Download PDF

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Publication number
WO2020192772A1
WO2020192772A1 PCT/CN2020/081797 CN2020081797W WO2020192772A1 WO 2020192772 A1 WO2020192772 A1 WO 2020192772A1 CN 2020081797 W CN2020081797 W CN 2020081797W WO 2020192772 A1 WO2020192772 A1 WO 2020192772A1
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data information
identifier
value
information
determined
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PCT/CN2020/081797
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English (en)
French (fr)
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王俊伟
余政
张兴炜
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华为技术有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/1607Details of the supervisory signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/32Flow control; Congestion control by discarding or delaying data units, e.g. packets or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055Physical resource allocation for ACK/NACK

Definitions

  • This application relates to the field of communication technology, and in particular to a communication method and device.
  • a hybrid automatic repeat request (HARQ) mechanism In cellular-based data communication, in order to effectively retransmit data, a hybrid automatic repeat request (HARQ) mechanism is introduced.
  • the entire data transmission process can be: the network device sends data information to the terminal device. After receiving the data information, the terminal device demodulates and decodes the data information, and if the data information is demodulated and decoded correctly, it feeds back an acknowledgement message (acknowledgement, ACK) to the network device. If the demodulation and/or decoding of the data information is wrong, a negative acknowledgment (NACK) is fed back to the network device.
  • the network device can end the transmission of the aforementioned data information. After receiving the NACK, the network device can retransmit the above-mentioned data information, and the network overhead is relatively high.
  • This application provides a communication method and device to reduce network overhead.
  • a communication method including: a terminal device receives first data information; the terminal device processes the first data information to obtain the processing status of the first data information; and the terminal device sends Feedback information, the feedback information includes a first identifier and a second identifier, and the first identifier and/or the second identifier are used to determine the processing status of the first data information.
  • the terminal device can adopt different processing methods for the data information sent by the network device according to its own processing capability, for example, it can be discarded, buffered, or normal demodulation and decoding. And the terminal device reports its own processing method to the network device, so that the network device performs different processing on the data information according to different situations. For example, in the case of discarding, the network device can use retransmission, and in the case of buffering, the network device no longer retransmits, and can directly instruct the terminal device to demodulate and decode the buffered data information. Compared with the processing method in which the terminal device feeds back the NACK and the network device always retransmits, the network overhead can be saved.
  • the processing status of the first data information includes: the first data information has been demodulated and decoded, or the first data information has not been demodulated and/or decoded. code.
  • the incomplete demodulation and/or decoding of the first data information includes: the first data information is discarded; or, the first data information is buffered.
  • the first identifier and/or the second identifier are used to determine the processing status of the first data information, including: the first identifier is a first value, and the second identifier If the identifier is a third value, it is determined that the processing state of the first data information is that the first data information is cached; or, if the first identifier is the first value, and the second identifier is the fourth value, then It is determined that the processing state of the first data information is that the first data information is discarded; or, if the first identifier is the first value or the second value, and the second identifier is the fifth value, then it is determined that the The processing state of the first data information is that the first data information has been demodulated and decoded.
  • the processing state of the first data information can be determined according to the first identifier and/or the second identifier. Further, the network device may adopt different processing methods according to the processing state of the first data information. Compared with the NACK feedback and always retransmission processing method, the network overhead can be saved.
  • the first identifier and/or the second identifier are also used to determine an ACK or NACK.
  • the first identifier and/or the second identifier are used to determine NACK or ACK in addition to determining the processing status of the first data information. NACK or ACK does not require additional instructions, further reducing network overhead.
  • the first identifier and/or the second identifier are also used to determine an acknowledgement ACK or a negative acknowledgement NACK, including: if the first identifier is a second value, it is determined as an ACK; Or, if the first identifier is a first value, and the second identifier is a fifth value, it is determined to be NACK.
  • the first identifier and/or the second identifier are used to determine the processing status of the first data information, including: the second identifier is a sixth value, and the first If the identifier is the eighth value, it is determined that the processing state of the first data information is that the first data information is discarded; or, the second identifier is the sixth value, and the first identifier is the ninth value, then It is determined that the processing state of the first data information is that the first data information is cached.
  • the first identifier and/or the second identifier are also used to determine an ACK or NACK.
  • the first identifier and/or the second identifier are also used to determine an ACK or NACK, including: the second identifier is a seventh value, and the first identifier If the value is the eighth value, NACK is determined; or, if the second identifier is the seventh value, and the first identifier is the ninth value, then ACK is determined.
  • the second identifier is carried in the feedback response information of the first data information, or the second identifier is carried in the feedback response information of the second data information, and the The second data information is different from the first data information.
  • placing the above-mentioned second identifier in the feedback response information of the second data information can reduce the impact of missing the PDCCH of the first data information. Since the second identifier can be used to determine the processing status of the first data information, even if the terminal device misses the PDCCH of the first data information, the first feedback has no effect. It can be seen from the above that the second identifier can be carried in the feedback response information of different data information, as opposed to being fixedly carried in the feedback response information of the first data information, with high flexibility and easy implementation.
  • the method further includes: the terminal device receiving the retransmitted first data information, the retransmitted first data information and the redundancy version RV of the discarded first data information The same; or, the terminal device receives the first indication information; the terminal device demodulates and/or decodes the buffered first data information according to the first indication information, and according to the demodulation and/or Decoding result, feedback ACK or NACK.
  • a communication method including: a network device sends first data information; the network device receives feedback information, the feedback information includes a first identifier and a second identifier, the first identifier and/or The second identifier is used to determine the processing status of the first data information.
  • the processing status of the first data information includes: the first data information has been demodulated and decoded, or the first data information has not been demodulated and/or decoded. code.
  • the incomplete demodulation and/or decoding of the first data information includes: the first data information is discarded; or, the first data information is buffered.
  • the first identifier and/or the second identifier are used to determine the processing status of the first data information, including: the first identifier is a first value, and the second identifier If the identifier is a third value, it is determined that the processing state of the first data information is that the first data information is cached; or, if the first identifier is the first value, and the second identifier is the fourth value, then It is determined that the processing state of the first data information is that the first data information is discarded; or, if the first identifier is the first value or the second value, and the second identifier is the fifth value, then it is determined that the The processing state of the first data information is that the first data information has been demodulated and decoded.
  • the first identifier and/or the second identifier are also used to determine an ACK or NACK.
  • the first identifier and/or the second identifier are also used to determine an acknowledgement ACK or a negative acknowledgement NACK, including: if the first identifier is a second value, it is determined as an ACK; Or, if the first identifier is a first value, and the second identifier is a fifth value, it is determined to be NACK.
  • the first identifier and/or the second identifier are used to determine the processing status of the first data information, including: the second identifier is a sixth value, and the first If the identifier is the eighth value, it is determined that the processing state of the first data information is that the first data information is discarded; or, the second identifier is the sixth value, and the first identifier is the ninth value, then It is determined that the processing state of the first data information is that the first data information is cached.
  • the first identifier and/or the second identifier are also used to determine an ACK or NACK.
  • the first identifier and/or the second identifier are also used to determine an ACK or NACK, including: the second identifier is a seventh value, and the first identifier If the value is the eighth value, NACK is determined; or, if the second identifier is the seventh value, and the first identifier is the ninth value, then ACK is determined.
  • the second identifier is carried in the feedback response information of the first data information, or the second identifier is carried in the feedback response information of the second data information, and the The second data information is different from the first data information.
  • the method further includes: the network device sending the retransmitted first data information, the retransmitted first data information and the redundancy version RV of the discarded first data information Same; or, the network device sends first indication information, the first indication information is used to instruct the terminal device to demodulate and/or decode the buffered first data information, and according to the demodulation and/ Or the decoding result, feedback ACK or NACK.
  • the network device can perform different processing on the data information according to the processing state of the first data information. For example, in the case of discarding, the network device can use retransmission, and in the case of buffering, the network device no longer retransmits, and can directly instruct the terminal device to demodulate and decode the buffered data information. Compared with the processing method in which the terminal device feeds back the NACK and the network device always retransmits, the network overhead can be saved.
  • a communication method including: a terminal device receives first data information; the terminal device processes the first data information; the terminal device sends feedback information, and the feedback information includes the first data information.
  • the first identifier is used to determine the positive acknowledgement ACK, the negative acknowledgement NACK, or the processing status of the first data information.
  • the feedback information may include the first identifier.
  • the first identifier may be used to determine the processing status of ACK, NACK or first data information, which is compatible with existing solutions and is easy to implement.
  • the processing state of the first data information includes that the first data information is discarded, or the first data information is cached.
  • the first identifier is used to determine the positive acknowledgement ACK, the negative acknowledgement NACK, or the processing status of the first data information includes: the first identifier is the first value, then the determination ACK; or, if the first identifier is a second value, then NACK is determined; or, if the first identifier is a third value, then it is determined that the first data information is discarded; or, the first identifier is the first Four values, it is determined that the first data information is cached.
  • the first identifier when the first identifier is used to determine the processing status of the first data information, the first identifier is carried in the feedback response information of the first data information, or The first identifier is carried in feedback response information of second data information, and the second data information is different from the first data information.
  • the method further includes: the terminal device receiving the retransmitted first data information, the retransmitted first data information and the redundancy version RV of the discarded first data information Same; or, the terminal device receives the first indication information, the terminal device demodulates and/or decodes the buffered first data information according to the first indication information, and according to the demodulation and/or decoding As a result, ACK or NACK is fed back.
  • a communication method including: a network device sends first data information; the network device receives feedback information, the feedback information includes a first identifier, and the first identifier is used to determine an ACK, Negative acknowledgement NACK, or the processing status of the first data information.
  • the processing state of the first data information includes that the first data information is discarded, or the first data information is cached.
  • the first identifier is used to determine the positive acknowledgement ACK, the negative acknowledgement NACK, or the processing status of the first data information includes: the first identifier is the first value, then the determination ACK; or, if the first identifier is a second value, then NACK is determined; or, if the first identifier is a third value, then it is determined that the first data information is discarded; or, the first identifier is the first Four values, it is determined that the first data information is cached.
  • the first identifier when the first identifier is used to determine the processing status of the first data information, the first identifier is carried in the feedback response information of the first data information, or The first identifier is carried in feedback response information of second data information, and the second data information is different from the first data information.
  • the method further includes: the network device sending the retransmitted first data information, the retransmitted first data information and the redundancy version RV of the discarded first data information Same; or, the network device sends first indication information, the first indication information is used to instruct the terminal device to demodulate and/or decode the buffered first data information, and according to the demodulation and/ Or the decoding result, feedback ACK or NACK.
  • a communication device including a transceiver module and a processing module;
  • the transceiver module is configured to receive first data information; the processing module is configured to process the first data information received by the transceiver module to obtain the processing status of the first data information; the transceiver module also uses For sending feedback information, the feedback information includes a first identifier and a second identifier, and the first identifier and/or the second identifier are used to determine the processing status of the first data information.
  • transceiver module and the processing module please refer to the first aspect and the record of any possible design, which will not be described here.
  • a communication device including a processor and a memory
  • the memory is used to store instructions; the processor is used to control the receiver to receive the first data information, process the first data information, obtain the processing state of the first data information, and control the transmitter to feedback information, the feedback
  • the information includes a first identifier and a second identifier, and the first identifier and/or the second identifier are used to determine the processing status of the first data information.
  • the processor for the specific implementation of the processor, the transmitter, and the receiver, please refer to the first aspect and the record of any possible design, which will not be described here.
  • a communication device including a transceiver module; optionally, it may also include a processing module.
  • the transceiver module is used to send the first data information and receive feedback information.
  • the feedback information includes a first identifier and a second identifier, and the first identifier and/or the second identifier are used to determine the processing status of the first data information.
  • the processing module is configured to determine first data information.
  • processing module and the transceiver module please refer to the second aspect and any possible design records, which will not be described here.
  • a communication device including a processor and a memory
  • the memory is used to store instructions; the processor is used to control the transmitter to send the first data information and the receiver to receive the feedback information.
  • the feedback information includes a first identifier and a second identifier, and the first identifier and/or the second identifier are used to determine the processing status of the first data information.
  • a communication device including a transceiver module and a processing module.
  • the transceiver module is used to receive the first data information; the processing module is used to process the first data information received by the transceiver module; the transceiver module is also used to send feedback information, and the feedback information includes the first data information.
  • the first identifier is used to determine the positive acknowledgement ACK, the negative acknowledgement NACK, or the processing status of the first data information.
  • transceiver module and the processing module please refer to the foregoing third aspect and any possible design records, which will not be described here.
  • a communication device including a processor and a memory
  • the memory is used to store instructions; the processor is used to control the receiver to receive the first data information, process the first data information, and control the transmitter to send feedback information, the feedback information includes the first identifier
  • the first identifier is used to determine the positive acknowledgement ACK, the negative acknowledgement NACK, or the processing status of the first data information.
  • a communication device including: a transceiver module.
  • a processing module may also include a transceiver module.
  • the transceiver module is configured to send first data information and receive feedback information.
  • the feedback information includes a first identifier, and the first identifier is used to determine an acknowledgement ACK, a negative acknowledgement NACK, or the first The processing status of the data information.
  • the processing module may be used to determine the first data information.
  • transceiver module and the processing module please refer to the foregoing fourth aspect and any possible design records, which will not be described here.
  • a communication device including a processor and a memory;
  • the memory is used to store instructions; the processor is used to control the transmitter to send the first data information and the receiver to receive the feedback information.
  • the present application also provides a computer-readable storage medium, including: computer software instructions; when the computer software instructions run on a communication device or a chip built in the communication device, the device can execute any of the above.
  • a computer-readable storage medium including: computer software instructions; when the computer software instructions run on a communication device or a chip built in the communication device, the device can execute any of the above.
  • this application also provides a computer program product containing instructions, which when run on a computer, cause the computer to execute any method in any of the above aspects.
  • FIG. 1 is a schematic diagram of a communication system provided by an embodiment of this application.
  • FIG. 2 is a schematic diagram of HARQ transmission provided by an embodiment of this application.
  • FIG. 3 is a schematic diagram of TB-based transmission and retransmission according to an embodiment of the application
  • FIG. 4 is a schematic diagram of CBG-based transmission and retransmission according to an embodiment of the application.
  • FIG. 5 is a schematic diagram of sequential transmission provided by an embodiment of this application.
  • 6a and 6b are schematic diagrams of non-sequential transmission provided by an embodiment of this application.
  • FIG. 7 is a schematic flowchart of a communication method provided by an embodiment of this application.
  • FIG. 13 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 14 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 15 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 16 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 1 shows a communication system 100 provided by an embodiment of the present application.
  • the communication system 100 includes a terminal device 101 and an access network device 102.
  • the communication system 100 may further include a core network device 103.
  • the terminal device 101 connects to the access network device 102 in a wireless manner, and the access network device 102 can be connected to the core network device 103 in a wired or wireless manner.
  • the core network device 103 and the access network device 102 may be separate and different physical devices, or the core network device 103 and the access network device 102 are the same physical device, and the core network device 103 is integrated on the physical device All/part of the functions and all/part of the logical functions of the access network device 102.
  • the terminal device 101 may be fixed or mobile.
  • the composition of the communication system 100 shown in FIG. 1 is only an exemplary description, and is not intended to limit the present application.
  • the communication system 100 may also include a wireless relay device or a wireless backhaul device.
  • the number of core network equipment, access network equipment, and terminal equipment is not limited.
  • the communication system 100 may include a number of terminal devices other than two terminal devices.
  • the access network equipment 102 and the terminal equipment 101 can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted, etc.; the access network equipment 102 and the terminal equipment 101 can also be deployed on the water; the access network equipment 102 and terminal equipment 101 can also be deployed on airplanes, balloons, and satellites in the air.
  • the embodiment of the present application does not limit the application scenarios of the access network device 102 and the terminal device 101.
  • the communication system shown in FIG. 1 may be suitable for downlink signal transmission, may also be suitable for uplink signal transmission, and may also be suitable for device-to-device (D2D) signal transmission.
  • the sending device is the access network device 102, and the corresponding receiving device is the terminal device 101.
  • the sending device is the terminal device 101, and the corresponding receiving device is the access network device 102.
  • D2D signal transmission the sending device is the terminal device 101, and the corresponding receiving device is also the terminal device 101.
  • the embodiment of the present application does not limit the signal transmission direction.
  • communication between the access network device 102 and the terminal device 101 and between the terminal device 101 and the terminal device 101 may be through a licensed spectrum (licensed spectrum), or communication may be conducted through an unlicensed spectrum (unlicensed spectrum), It is also possible to communicate through licensed spectrum and unlicensed spectrum at the same time.
  • the access network device 102 and the terminal device 101 and the terminal device 101 and the terminal device 101 can communicate through the frequency spectrum below 6G, or communicate through the frequency spectrum above 6G, and can also use the frequency spectrum below 6G and 6G at the same time. Above the spectrum to communicate.
  • the embodiment of the present application does not limit the spectrum resource used between the access network device 102 and the terminal device 101.
  • a network device is an entity used to transmit or receive signals on the network side.
  • the network device may be a device used to communicate with terminal devices.
  • the network device may include the access network device 102 and/or the core network device 103 shown in FIG. 1.
  • the network equipment may include a new generation Node B (gNodeB).
  • the network equipment may be an AP in a wireless local area network (WLAN), a base station (global system for mobile communication, GSM) or code division multiple access (CDMA).
  • WLAN wireless local area network
  • GSM global system for mobile communication
  • CDMA code division multiple access
  • BTS basetransceiver station
  • BTS can also be a base station (NodeB, NB) in wideband code division multiple access (WCDMA), or an evolved base station in long term evolution (LTE) (evolutional Node B, eNB or eNodeB), or relay station or access point, or in-vehicle equipment, wearable equipment, and network equipment in the future 5G network or the public land mobile network (PLMN) network Network equipment, or gNodeB in the NR system.
  • LTE long term evolution
  • PLMN public land mobile network
  • the network equipment provides services for the cell, and the terminal equipment communicates with the network equipment through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell.
  • the cell may be a network equipment.
  • the corresponding cell the cell can belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here can include: Metro cell, Micro cell, and Pico cell (Pico cell), femto cell (Femto cell), etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • the network device may be another device that provides wireless communication functions for the terminal device.
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the network device. For ease of description, in the embodiments of the present application, a device that provides a wireless communication function for a terminal device is called a network device.
  • a terminal device can be a wireless terminal device that can receive network device scheduling and instruction information.
  • a wireless terminal device can be a device that provides voice and/or data connectivity to users, or a handheld device with wireless connection function, or a connection Other processing equipment to the wireless modem.
  • a wireless terminal device can communicate with one or more core networks or the Internet via a wireless access network (e.g., radio access network, RAN).
  • the wireless terminal device can be a mobile terminal device, such as a mobile phone (or called a "cellular" phone). , Mobile phones), computers, and data cards, for example, may be portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the wireless access network.
  • Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station (MS), remote station (remote station), access point ( access point, AP), remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), subscriber station (subscriber station, SS), user terminal equipment (customer premises equipment, CPE), terminal (terminal), user equipment (user equipment, UE), mobile terminal (mobile terminal, MT), etc.
  • Wireless terminal devices can also be wearable devices and next-generation communication systems, for example, terminal devices in a 5G network or terminal devices in a public land mobile network (PLMN) network that will evolve in the future, and in NR communication systems. Terminal equipment, etc.
  • PLMN public land mobile network
  • the HARQ mechanism In cellular-based data communication, in order to effectively retransmit data, the HARQ mechanism is introduced.
  • the entire data transmission process can be: the network device sends scheduling information and data information to the terminal device. After receiving the scheduling information, the terminal device receives the data information according to the instructions of the scheduling information.
  • the terminal device demodulates and decodes the data information, and if the data information is demodulated and decoded correctly, it feeds back ACK to the network device. If the demodulation and decoding of the data information is wrong, NACK is fed back to the network device.
  • a network device can send scheduling information in slot n, and the scheduling information can instruct the terminal device to receive data information in slot n+2 and to feed back HARQ information in slot n+4 .
  • the terminal device receives the data information in time slot n+2 according to the instructions of the scheduling information, demodulates and decodes the data information, and according to the demodulation and decoding results, Slot n+4 feeds back HARQ information, and the HARQ information may specifically be ACK or NACK.
  • the network device can end the transmission of the aforementioned data information.
  • the network device may retransmit the above data information.
  • the HARQ mechanism may include transmission and retransmission based on transport block (TB), and/or transmission and retransmission based on code block group (CBG).
  • TB transport block
  • CBG code block group
  • the sender cuts the transport block (transport block, TB) into multiple code blocks (code block, CB), and each CB performs cyclic redundancy check (cyclic redundancy check, CRC) checksum coding.
  • CRC cyclic redundancy check
  • the sending end may divide the TB to be sent into 4 CBs, and the indexes of the 4 CBs may be CB0, CB1, CB2, and CB3 in sequence.
  • the sending end sends the above 4 CBs to the receiving end in units of TB.
  • the receiving end can demodulate and/or decode CB0 to CB3 in the TB. For example, see Figure 3 (steps labeled "1" and "2"), if any CB demodulation and/or decoding error in CB0 to CB3 (in the example shown in Figure 3, is Taking the CB0 error as an example for illustration), then NACK is fed back to the sender.
  • the sender when receiving the NACK, the sender retransmits the TB.
  • the sender when receiving the NACK, the sender retransmits the TB.
  • steps labeled "3" and "4" if CB0 to CB3 are all demodulated and/or decoded correctly, an ACK is fed back to the sending end.
  • the sender when the sender receives the ACK, it ends the transmission of the TB.
  • CBG-based transmission and retransmission The sender cuts the TB into N CBs, and cuts the N CBs into M CBGs.
  • the size of N is related to the length of TB, and the size of M is configured by a network device.
  • the receiving end After receiving the TB, the receiving end sequentially demodulates and/or decodes M CBGs. For a CBG, if each CB in the CBG is demodulated and/or decoded correctly, an ACK is fed back, and if any CB in the CBG is demodulated and/or decoded incorrectly, a NACK is fed back.
  • the sending end may cut the TB to be sent into 4 CBs, and the numbers of the 4 CBs are CB0, CB1, CB2, and CB3, respectively. Cut the above 4 CBs into 2 CBGs, numbered CBG0 and CBG1 respectively. Among them, CBG0 includes CB0 and CB1, and CBG1 includes CB2 and CB3.
  • the receiving end demodulates and/or decodes CB0 and CB1 included in CBG0, and demodulates and/or decodes CB2 and CB3 included in CBG1.
  • ACK is fed back for both CBG0 and CBG1.
  • the receiving end feeds back (ACK, ACK).
  • the sender ends the transmission of the entire TB.
  • sequential transmission may mean that if the transmission of scheduling information A in the time domain is earlier than the transmission of scheduling information B, the transmission of data information A in the time domain is earlier than the transmission of data information B, and the transmission of HARQ feedback A in the time domain is earlier than HARQ feedback B.
  • scheduling information A is transmitted in time slot n
  • scheduling information B is transmitted in time slot n+1
  • the transmission time of scheduling information A in the time domain is earlier than Schedule information B.
  • Data information A is transmitted in time slot n+2, data information B is transmitted in time slot n+3, and the transmission time of data information A in the time domain is earlier than data information B.
  • HARQ feedback A is transmitted in time slot n+4, HARQ feedback B is transmitted in time slot n+5, and the transmission time of HARQ feedback A in the time domain is earlier than HARQ feedback B.
  • non-sequential transmission may refer to if the transmission of scheduling information A in the time domain is earlier than scheduling information B, but the transmission of data information A in the time domain is later than data information B, and/or HARQ feedback A is in the time domain The above transmission is later than HARQ feedback B.
  • scheduling information A is transmitted in time slot n
  • scheduling information B is transmitted in time slot n+1
  • the transmission time of scheduling information A in the time domain is earlier than scheduling information.
  • Information B data information A is transmitted in time slot n+3, data information B is transmitted in time slot n+2, the transmission time of data information A is later than data information B, and HARQ feedback A is transmitted in time slot n+4 , HARQ feedback B is transmitted in time slot n+5, and the transmission time of HARQ feedback A in the time domain is earlier than HARQ feedback B.
  • scheduling information A is transmitted in time slot n
  • scheduling information B is transmitted in time slot n+1
  • the transmission time of scheduling information A in the time domain is earlier than scheduling information.
  • Non-sequential transmission may also include: the transmission of scheduling information A in the time domain is earlier than the transmission of scheduling information B, but the transmission of data information A in the time domain is later than data information B, and HARQ feedback A's transmission in the time domain is later than HARQ feedback B.
  • eMBB business has a relatively large amount of data and a relatively high transmission rate, which requires a high delay. Therefore, a longer time scheduling unit is usually used for data transmission to improve transmission Efficiency, for example, a time slot with 15 kHz sub-carrier spacing is used, corresponding to 14 time domain symbols, and the corresponding time length is 1 ms. It can be seen that the eMBB service requires low latency, and the service scheduling interval can be longer, and the interval can be 1ms or longer.
  • Ultra-reliable and Low-Latency Communications (URLLC) services have extremely high requirements for latency. Regardless of reliability, the transmission latency is required to be within 0.5 milliseconds; reaching 99.999% Under the premise of high reliability, the transmission delay is required to be within 1ms.
  • the smallest time scheduling unit is a transmission time interval (TTI) with a length of 1 ms.
  • TTI transmission time interval
  • the data transmission of the wireless air interface can use a shorter time scheduling unit, for example, a mini-slot or a time slot with a larger subcarrier interval as the minimum time scheduling unit.
  • a mini-slot includes one or more time-domain symbols.
  • the time domain symbols may be orthogonal frequency division multiplexing (OFDM) symbols.
  • OFDM orthogonal frequency division multiplexing
  • words such as “exemplary” or “for example” are used as examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present application should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as “exemplary” or “for example” are used to present related concepts in a specific manner.
  • This application provides a communication method and device.
  • the principle of the communication method and device is that the terminal device can use different processing methods for the data information sent by the network device, for example, it can be discarded, buffered, or normal. Demodulation and decoding.
  • the terminal device reports the processing status of the data information to the network device, so that the network device performs different processing on the data information according to different situations. For example, for the discarded processing state, the network device can retransmit, and for the buffered processing state, the network device does not retransmit, and can directly instruct the terminal device to demodulate and decode the buffered data information. Compared with the NACK feedback from the terminal device, the network device always retransmits the processing method, which can save network overhead.
  • the network device in the flow may be the access network device 102 or the core network device 103 shown in FIG. 1, and the terminal device may be the terminal shown in FIG. Device 101, the process includes:
  • the network device sends first data information to the terminal device.
  • the terminal device processes the first data information to obtain the processing status of the first data information.
  • the terminal device sends feedback information to the network device.
  • the feedback information includes a first identifier and a second identifier, and the first identifier and/or the second identifier are used to determine the processing status of the first data information.
  • the processing state of the first data information includes: the first data information has been demodulated and decoded, or the first data information has not been demodulated and/or decoded.
  • the incomplete demodulation and/or decoding of the first data information includes: the first data information is discarded; or, the first data information is buffered.
  • the first data information is discarded (for example, discard).
  • the feedback information includes a first identifier
  • the first identifier is used to determine an acknowledgement ACK, a negative acknowledgement NACK, or the processing status of the first data information.
  • the processing state of the first data information includes that the first data information is discarded, or the first data information is cached. For example, if the first identifier is a first value, then ACK is determined; or, if the first identifier is a second value, then NACK is determined; or, if the first identifier is a third value, then the first identifier is determined A piece of data information is discarded; or, if the first identifier is a fourth value, it is determined that the first data information is cached. For example, 2 bits can be used to represent the first identifier, the first value is 00, the second value is 01, the third value is 10, and the fourth value is 10.
  • the process shown in FIG. 7 may further include: when the network device receives the feedback information, acquiring the first identifier and the second identifier in the feedback information.
  • the network device determines the processing state of the first data information according to the first identifier and the second identifier.
  • the network device performs corresponding processing according to the processing state of the first data information. For example, when the processing status of the first data information is discarded, the network device may retransmit the first data information. Accordingly, the terminal device receives the retransmitted first data information, and the retransmitted first data information is discarded
  • the redundancy version (redundancy version, RV) of the first data information is the same.
  • the network device may send a first instruction to the terminal device, and the terminal device demodulates and/or decodes the buffered first data information according to the first instruction , And according to the demodulation and/or decoding results, feedback ACK or NACK.
  • the terminal device demodulates and/or decodes the buffered first data information according to the first instruction , And according to the demodulation and/or decoding results, feedback ACK or NACK.
  • the function of the first indication can also be explained as follows: the first indication can activate the terminal device to only perform HARQ-ACK feedback, that is, the terminal device can only provide HARQ-ACK feedback after receiving the first indication.
  • the feedback content in the HARQ-ACK may be ACK or NACK. Further, after the terminal device receives the first instruction, if the buffered first data information has not been demodulated and/or decoded. Then the UE needs to complete demodulation and/or decoding first, and then perform HARQ-ACK feedback according to the demodulation and decoding results. For example, if the demodulation and decoding are correct, the HARQ-ACK feedback is ACK; otherwise, the HARQ-ACK feedback is NACK.
  • the terminal device can report the processing status of the first data information to the network device. Accordingly, the network device performs different processing according to the processing status of the first data information. For example, in the case of discarding, the network device can retransmit, and in the case of buffering, the network device does not retransmit, and can directly instruct the terminal device to demodulate and decode the buffered data information. Compared with the NACK feedback from the terminal device, the network device always retransmits the processing method, which can save network overhead.
  • the terminal device may adopt different processing methods for the buffered data information. For example, the terminal device can find an opportunity by itself to demodulate and/or decode the buffered data information. Alternatively, after receiving the retransmission signaling, the terminal device combines the buffered data information and the retransmitted data information before performing demodulation and/or decoding. Or, after receiving other signaling, the terminal device demodulates and/or decodes the buffered data information. For example, other information may be signaling for only making HARQ-ACK feedback.
  • the value of the first identifier may be the first value or the second value
  • the value of the second identifier may be the third value, the fourth value, or the fifth value.
  • the first identifier can be represented by 1 bit
  • the first value can be 0, and the second value can be 1.
  • the second identifier can be represented by 2 bits
  • the third value can be 00
  • the fourth value can be 01
  • the fifth value can be 10. It can be understood that in the embodiment of the present application, the first value of the first identifier is 0, the second value is 1, the third value of the second identifier is 00, the fourth value is 01, and the fifth value is 10.
  • the description is not taken as a limitation to this application.
  • the first identifier is a first value and the second identifier is a third value, it is determined that the processing state of the first data information is that the first data information is cached; Or, if the first identifier is a first value, and the second identifier is a fourth value, it is determined that the processing state of the first data information is that the first data information is discarded; or, the first identifier If it is the first value or the second value, and the second identifier is the fifth value, it is determined that the processing state of the first data information is that the demodulation and decoding of the first data information has been completed.
  • the first identifier and/or the second identifier are also used to determine ACK or NACK. For example, if the first identifier is a second value, it is determined as ACK; or, if the first identifier is a first value, and the second identifier is a fifth value, it is determined as NACK.
  • an application scenario is provided: as shown in Figure 8, the network device sends DCI-1 to the terminal device in time slot n, and the DCI-1 schedules the terminal device to receive PDSCH-1 in time slot n+2 and HARQ feedback -1 is sent in time slot n+5.
  • the PDSCH-1 carries first data information.
  • the HARQ feedback 1 may carry ACK or NACK.
  • DCI-1, PDSCH-1 and HARQ feedback-1 can be applied to eMBB services.
  • eMBB service please refer to the record in 8) of the above concept note.
  • the network device sends DCI-2 to the terminal device in time slot n+1, and the DCI-2 schedules the terminal device to receive PDSHC-2 in time slot n+3 and send HARQ feedback in time slot n+4 -2.
  • the PDSCH-2 carries second data information.
  • the HARQ feedback-2 may carry ACK or NACK.
  • DCI-2, PDSCH-2 and HARQ feedback-2 can be applied to URLLC services.
  • URLLC service please refer to the record in the above-mentioned concept note 9).
  • DCI-1 is transmitted in time slot n
  • DCI-2 is transmitted in time slot n+1
  • DCI-1 is transmitted in the time domain earlier than DCI-2
  • HARQ feedback-1 is transmitted in time slot n+5
  • HARQ feedback-2 is transmitted in time slot n+4
  • HARQ feedback-1 is transmitted in the time domain later than HARQ feedback-2, and non-sequential transmission occurs.
  • the processing status of the PDSCH-1 by the terminal device can be fed back to the network device.
  • the processing status of PDSCH-1 can be carried into HARQ feedback-1, as described in Example 1.1 below.
  • the processing status of PDSCH-1 can be carried into HARQ feedback-2, as described in Example 1.2 below.
  • the processing status of the PDSCH-1 can be specifically represented by the first identifier and/or the second identifier shown in Table 1 in Example 1.
  • the HARQ feedback-1 sent by the terminal device may include two parts, namely the first part (part1) and the second part (part2).
  • the first part may be ACK/NACK
  • the second part may be the processing state of the PDSCH-1 by the terminal device.
  • the terminal device can perform different processing on PDSCH-1 according to its own processing capabilities. For example, when the processing capability of the terminal device is high and the non-sequential transmission does not affect the processing of the PDSCH-1 by the terminal device, the terminal device can perform normal demodulation and decoding on the PDSCH-1.
  • the terminal device may buffer the PDSCH-1, or discard the processing method of the PDSCH-1.
  • the network device can perform different processing according to the processing state of the terminal device.
  • the terminal device directly discards PDSCH-1, feeds back NACK, and the network device retransmits PDSCH-1, which can reduce network overhead, increase system capacity, and improve user experience.
  • the first part of HARQ feedback-1 can be represented by 1 bit.
  • 1 can be used for ACK, and 0 can be used for NACK.
  • the second part of HARQ feedback-1 can be represented by 2 bits.
  • 00 can be used to indicate cached. 01 means discard. 10 means that demodulation and decoding have been completed.
  • the network equipment can first parse the first part of the HARQ feedback-1. If the content in the first part is "1", it means that the PDSCH-1 is completed Demodulate and decode, and the transmission is correct, ignore the content in the second part. If the content in the first part is "0", it will be parsed according to the content in the second part. For example, if the content in the second part is "00”, it means that PDSCH-1 is cached. If the content in the second part is "01”, it means that PDSCH-1 has been discarded. If the content in the second part is "10”, it means that PDSCH-1 has been demodulated and decoded, but the transmission is wrong.
  • HARQ feedback-1 information of PDSCH-1 is fed back in the same uplink channel, that is, when the codebook of PDSCH-1 is multiplexed and fed back together.
  • the PDSCH-1 closest to PDSCH-2 is the most affected among multiple PDSCH-1, in order to reduce the complexity of the terminal and base station, HARQ can be enhanced for the data closest to PDSCH-1 among multiple PDSCH-1 Feedback.
  • the HARQ feedback corresponding to the target PDSCH-1 includes two parts, the first part is ACK/NACK, and the second part is the processing status of the PDSCH-1 by the terminal device.
  • the HARQ feedback corresponding to the PDSCH-1 corresponding to the non-target PDSCH-1 only a part is included, and this part is ACK/NACK.
  • multiple PDSCH-1 can be represented as mPDSCH1, mPDSCH2, and mPDSCH3.
  • mPDSCH1 corresponds to HARQ feedback 1
  • mPDSCH2 corresponds to HARQ feedback 2
  • mPDSCH3 corresponds to HARQ feedback 3.
  • PDSCH2 can be expressed as uPDSCH.
  • HARQ feedback 1, HARQ feedback 2, and HARQ feedback 3 may be fed back in the target HARQ feedback, and the target HARQ feedback may include two parts, the first part and the second part, respectively.
  • the first part includes the ACK/NACK corresponding to mPDSCH1, the ACK/NACK corresponding to mPDSCH2, and the ACK/NACK corresponding to mPDSCH3.
  • the second part should include the processing status of the terminal equipment on mPDSCH3.
  • uPDSCH can be fed back through HARQ feedback4.
  • the HARQ feedback-2 fed back by the terminal device may include two parts, namely the first part (part1) and the second part (part2).
  • the first part may be ACK/NACK
  • the second part may be the processing state of the PDSCH-1 by the terminal device.
  • the processing state of the above PDSCH-1 is placed in HARQ feedback-2, which can reduce the impact of missed PDCCH-1 detection, that is, if the terminal equipment misses PDCCH-1, it will affect PDSCH- 1’s feedback has no effect.
  • the value of the first identifier may be the eighth value or the ninth value
  • the value of the second identifier may be the sixth value or the seventh value.
  • the first identifier and the second identifier may both be represented by 1 bit.
  • the sixth value can be 1, the seventh value can be 0, the eighth value can be 0, and the ninth value can be 1. It can be understood that, in the embodiments of the present application, the sixth value may be 1, the seventh value may be 0, the eighth value may be 0, and the ninth value may be 1 as an example for description, and it is not intended as an example of this Application limit.
  • the second identifier is a sixth value, and the first identifier is an eighth value, it is determined that the processing state of the first data information is that the first data information is discarded; Or, if the second identifier is a sixth value, and the first identifier is a ninth value, it is determined that the processing state of the first data information is that the first data information is cached.
  • Second identification (sixth value / seventh value) Meaning interpretation Eighth value (0) Sixth value (1) thrown away Ninth value (1) Sixth value (1) Cached Eighth value (0) Seventh value (0) NACK Ninth value (1) Seventh value (0) ACK
  • the first identifier and/or the second identifier are also used to determine ACK or NACK. For example, if the second identifier is the seventh value, and the first identifier is the eighth value, then NACK is determined; or, if the second identifier is the seventh value, and the first identifier is the ninth value, then it is determined ACK.
  • the terminal device can feed back the processing status of PDSCH-1 to the network device.
  • the processing state of the PDSCH-1 may be carried into HARQ feedback-1, or the processing state of the PDSCH-1 may be carried into HARQ feedback-2.
  • the processing status of the PDSCH-1 may be indicated by the first identifier and/or the second identifier shown in Table 2 in Example 2.
  • the HARQ feedback-1 fed back by the terminal device may include two parts, the first part and the second part.
  • the first part may be ACK/NACK
  • the second part may be the processing state of the PDSCH-1 by the terminal device.
  • the processing state of the terminal device on PDSCH-1 may be that the terminal device completes the demodulation and decoding of PDSCH-1, or the terminal device does not complete the demodulation and/or decoding of PDSCH-1.
  • the first part of HARQ feedback-1 can be represented by 1 bit.
  • “1” can be used for ACK, and "0" for NACK.
  • the second part of HARQ feedback-1 can be represented by 1 bit.
  • “0” can be used to indicate completion of demodulation and decoding. Available “1” means that demodulation and decoding have not been completed.
  • the network device may first parse the second part of the content. According to the analysis of the second part, analyze the content of the first part.
  • the terminal device has completed the demodulation and decoding of HARQ feedback-1. Now demodulate the first part of the content. If the content of the first part is "1”, it means ACK. If the content of the first part is "0", it means NACK.
  • the content of the second part is "1"
  • Now demodulate the first part of the content If the content of the first part is "0", it means that PDSCH-1 is discarded. If the content of the first part is "1”, it means that PDSCH-1 is buffered. It is understandable that, in this embodiment of the present application, the content of the first part may also be "1", which means that PDSCH-1 is cached. The content of the first part is "0", which means that PDSCH-1 is discarded, etc., and it is not a limitation of this application.
  • the HARQ feedback-2 fed back by the terminal device may include two parts, namely the first part and the second part.
  • the first part is ACK/NACK
  • the second part is the processing status of the PDSCH by the terminal equipment.
  • the first part of HARQ feedback-2 can be represented by 1 bit.
  • “1” can be used for ACK, and "0" for NACK.
  • the second part of HARQ feedback-2 is represented by 1 bit.
  • “0” can be used to indicate completion of demodulation and decoding. Available “1” means that demodulation and decoding have not been completed.
  • the processing process of the second part of the HARQ feedback-2 by the network device please refer to the record in the above example 2.1, which will not be described here.
  • the second identifier may be carried in the feedback information of the first data information, or the second identifier may be carried in the feedback information of the second data information.
  • the feedback information of the first data information is the first HARQ feedback
  • the feedback information of the second data information is the second HARQ feedback.
  • the second identifier is carried in the first HARQ feedback
  • the records in Example 1.1 and Example 2.1 above refer to the records in Example 1.2 and Example 2.2 above.
  • the first HARQ is represented as HARQ feedback-1
  • the second HARQ is represented as HARQ-2.
  • the first data information corresponds to the first HARQ feedback
  • the second data information corresponds to the second HARQ feedback
  • the transmission of the first data information and the second data information may be non-sequential.
  • the first data information is transmitted in time slot 2 and the second data information is transmitted in time slot 3.
  • the transmission of the first data information is earlier than the second data information in the time domain.
  • the first HARQ feedback is transmitted in time slot 6, and the second HARQ feedback is transmitted in time slot 4.
  • the transmission of the first HARQ feedback is later than the second HARQ feedback in the time domain.
  • the network device or the terminal device may adopt any one or more of the following examples 4.1, 4.2, and 4.3 to determine the processing state of the first data information. It is understandable that in the embodiments of the present application, the network device or the terminal device may also use other methods to determine the processing state of the first data information, and the following examples 4.1 to 4.3 are not intended to limit the application. It should be noted that in the following examples 4.1 to 4.3 of the embodiments of the present application, some conditions are predefined. Network equipment or terminal equipment can determine the processing status of data information according to the predefined conditions, without additional Information exchange, reducing air interface overhead.
  • Example 4.1 determine the processing state of the first data information. For the concept of N3, please refer to the record in Example 4.4).
  • the value of threshold 1 can be 5 symbols or 10 symbols.
  • threshold 2 When N3 is greater than or equal to threshold 2 and less than threshold 1, it can be considered that the terminal device can only buffer the first data information, and cannot demodulate and/or decode the first data information, that is, the processing of the first data information
  • the state is that the first data information is cached.
  • the value of threshold 2 can be 3 symbols or 5 symbols.
  • the terminal device discards the first data information, that is, the processing state of the first data information is that the first data information is discarded.
  • Example 4.2 Determine the processing status of the first data information based on N3 and N4. For the description of N3 and N4, please refer to the description of Example 4.4).
  • threshold 1 When N3+N4 is greater than the threshold 1, it is considered that the terminal device can complete the decoding, or the phenomenon of non-sequential transmission, which does not affect the terminal device's demodulation and decoding of the first data information, that is, the processing state of the first data information The demodulation and decoding of the first data information has been completed.
  • the value of threshold 1 may be 10.
  • threshold 2 When N3+N4 is greater than threshold 2 and less than or equal to threshold 1, it can be considered that the terminal device can only buffer the first data information, and cannot demodulate and/or decode the first data information.
  • the processing state is that the first data information is cached.
  • the value of threshold 2 can be 6.
  • the terminal device When N3+N4 is less than or equal to the threshold 2, it is considered that the terminal device will discard the first data information, that is, the processing state of the first data information is that the first data information is discarded.
  • the HARQ mechanism may include TB-based transmission and retransmission, and/or CBG-based transmission and retransmission.
  • TB-based transmission and retransmission please refer to the record in Concept Note 4
  • CBG-based transmission and retransmission please refer to the record in Concept Note 5), which will not be described here.
  • N3 and N4 are described by taking TB-based transmission and retransmission as an example.
  • it is set to transmit the first data information and the second data information in units of TB.
  • the TB that transmits the first data information may be referred to as eMBB TB.
  • the TB that transmits the second data information may be called URLLC TB.
  • the HARQ feedback corresponding to the first data information is called eMBB HARQ feedback
  • the HARQ feedback corresponding to the second data information is called URLLC HARQ feedback.
  • a time slot includes 14 time domain symbols, and the 14 time domain symbols are sequentially numbered from the first symbol to the 14th symbol.
  • eMBB TB is transmitted in time slot 2 and occupies all time domain symbols in time slot 2. That is, the start time domain symbol occupied by eMBB TB in time slot 2 is the first symbol, and the end time domain The symbol is the 14th symbol.
  • URLLC TB is transmitted in time slot 3 and occupies 11 time domain symbols in time slot 3. The start time domain symbol of URLLC TB in time slot 3 is the 4th symbol, and the end time domain symbol is the 14th symbol.
  • the N3 can be defined as the number of time domain symbols between the end time domain symbol used to transmit eMBB TB in time slot 2 and the start time domain symbol used to transmit URLLC TB in time slot 3. It can be seen from FIG. 11 that the number of symbols in the time domain is 3, that is, the value of N3 can be 3.
  • URLLC HARQ is transmitted in time slot 4 and occupies 3 time domain symbols in time slot 4.
  • the start time domain symbol of URLLC HARQ in time slot 4 is the fifth symbol and ends
  • the time domain symbol is the seventh symbol.
  • the N4 can be defined as the number of time domain symbols between the start time domain symbol used to transmit URLLC HARQ in time slot 4 and the end time domain symbol used to transmit URLLC TB in time slot 3, as shown in Figure 11 It can be seen that the number of symbols in the time domain is 4, that is, the value of N4 can be 4.
  • N3 and N4 are described by taking CBG-based transmission and retransmission as an example.
  • it is set to transmit the first data information and the second data information in units of TB.
  • the TB that transmits the first data information may be referred to as eMBB TB.
  • the TB that transmits the second data information may be called URLLC TB.
  • the HARQ feedback corresponding to the first data information is called eMBB HARQ
  • the HARQ feedback corresponding to the second data information is called URLLC HARQ.
  • the entire eMBB service TB is cut into 4 CBGs, numbered from 0 to 3 respectively.
  • CBG0 occupies symbols 0 to symbol 2 in slot 2 for transmission
  • CBG1 occupies symbols 3 to symbol 5 in slot 2 for transmission
  • CBG2 occupies symbols 6 to symbol 8 in slot 2 for transmission
  • CBG3 occupies symbols 9 to 11 in slot 2 for transmission.
  • N3 is the end time domain symbol of CBG0 in time slot 2 (that is, the symbol 2 in time slot 2), and the start time slot symbol (immediately) used to transmit URLLC TB in time slot 3 Symbol 2) in slot 3, the number of symbols in the interval.
  • N3 in CBG1 to CBG3 it is similar to the value process of N3 in CBG0 described above, and will not be described here.
  • N3 meets the condition of being greater than or equal to threshold 1, so the data processing state corresponding to CBG0 and CBG1 is demodulation and decoding completed.
  • threshold 2 only the condition greater than or equal to the threshold 2 can be satisfied, so the data processing state corresponding to CBG2 is buffered.
  • CBG3 the condition of being greater than or equal to 2 is not satisfied, so the data processing state corresponding to CBG3 is discarded.
  • the definition of N3 only takes a threshold 1 (for example, the value of threshold 1 can be 10 symbols).
  • the threshold 1 for example, the value of threshold 1 can be 10 symbols.
  • the network equipment and terminal equipment consider that the CBG needs to be discarded.
  • the interval N3 between the CBG in the first data and the second data is greater than or equal to the threshold 1, the network device and the terminal device consider that the CBG can be demodulated and decoded.
  • the network equipment and terminal equipment think that they can complete the demodulation and decoding of the CBG0 and CBG1, and the feedback ACK/ NACK is valid. If the interval N3 between CBG2 and CBG3 in the first data and the second data is less than the threshold 1, the network equipment and terminal equipment think that they cannot complete the demodulation and decoding of CBG2 and CBG3, and the terminal equipment can discard CBG2 And CBG3, the feedback ACK/NACK is invalid.
  • the "discard” in the embodiment of the present application may mean that the terminal device does not decode the relevant data block, and may also be referred to as “skipping the data block” decoding.
  • the setting of the threshold corresponding to N3 in the foregoing example 4.1 and N3+N4 in the foregoing example 4.2 may be related to the following factors:
  • Data scheduling bandwidth For example, the larger the data bandwidth, the longer the required demodulation and/or decoding time, and the larger the threshold of N3 or N3+N4.
  • the scheduling bandwidth in Table 3 may refer to the scheduling bandwidth of the eMBB service.
  • the maximum scheduling bandwidth in Table 4 may refer to the maximum scheduling bandwidth between the eMBB service and the URLLC service.
  • Threshold 1 Threshold 2 Situation 1 15KHZ ⁇ 50PRB 5 3 Situation 2 15KHZ 50--100PRB 4 2 Situation 3 15KHZ >100PRB 3 2 Situation 4 30KHZ ⁇ 50PRB 8 5 Situation 5 30KHZ 50--100PRB 5 3 Situation 6 30KHZ >100PRB 4 2
  • the HARQ mechanism may include TB-based transmission and retransmission, and/or CBG-based transmission and retransmission.
  • TB-based transmission and retransmission refer to the description in Concept Note 4
  • CBG-based transmission and retransmission refer to the description in Concept Note 5).
  • the processing state of the data information can be directly added after the feedback information of the entire TB.
  • the processing state of the data information please refer to the introduction of the above example 1 and example 2, which will not be described here.
  • the processing of data information can be added after each CBG feedback information Status (see the record in Example 5.1 below); or, for the entire TB, only add the processing status of one data message (see the record in Example 5.2 below).
  • Example 5.1 For each CBG feedback, feedback information is added separately.
  • the newly added feedback information in each CBG can be represented by 2 bits.
  • 1 TB contains 4 CBGs, then for each of the 4 CBGs, 2 bits of feedback information are added.
  • the newly added feedback information in each CBG can be represented by 1 bit.
  • 1 TB includes 4 CBGs, then for each of the 4 CBGs, 1 bit of feedback information is added.
  • the processing method of newly added 2-bit feedback information refer to the record in the above example 2.1
  • the processing method of the newly added 1-bit feedback information refer to the record in the above example 2.2.
  • Example 5.2 only adds one piece of data information for the entire TB. For example, if 4 CBGs are included in 1 TB, only part of the feedback information may be newly added for the 4 CBGs.
  • the HARQ feedback of the entire TB includes two parts, namely the first part (part1) and the second part (part2) .
  • the first part corresponds to the original CBG HARQ-ACK feedback
  • the second part is the newly added bits.
  • the newly added bits in the second part can be represented by 1 bit.
  • the value of the second part is 0, it means that all CBGs in the TB have completed demodulation and decoding.
  • the value of the second part is 1, it means that at least the last CBG in the TB is discarded.
  • the processing process on the network device side can be: first find the CBG discarding boundary, then find the boundary that completes the CBG demodulation and decoding, and finally determine the discarded CBG, the demodulated and decoded CBG, And cached CBG, etc.
  • the order is sorted according to the order of transmission time, from CBG0 to CBG7, ACK is represented by 1, and NACK is represented by 0.
  • the entire analysis process can be as follows:
  • CBG7 From the last CBG (ie CBG7) to judge the part1 data information forward: if the part1 information is 1, then the previous CBG (such as CBG6) is considered to be discarded, until the first part1 information that is 0 is parsed ( For example: the part1 information corresponding to CBG5 is 0). Among them, 0 means that the previous CBG is not discarded.
  • the part1 information of the CBG is 0, it is considered as a cache; continue to parse the part1 information of the CBG until the first CBG is parsed as 1 (for example: corresponding to CBG2 The part1 information is 1). Among them, 1 indicates that the current CBG is correctly decoded (that is, ACK); optionally, the cache is determined in step 2, and the network device can also parse it into NACK, which is not limited in this embodiment of the application.
  • the information of the second part can be represented by 2 bits, and the parsing process is similar to the parsing process shown in Table 5 above, and will not be described here.
  • the 2bit representation process can be as follows:
  • 0 means buffering, until the first 1 position is parsed, and it is judged as ACK, and subsequent decoding is judged to be completed, and it is parsed as NACK or ACK.
  • 0 means discarding the buffer, until the first 1 position is parsed, which is judged as ACK, and subsequent decoding is judged to be completed, and parsed as NACK or ACK.
  • the terminal device can report the non-sequential transmission capability to the network device.
  • the reporting process corresponding to the non-sequential transmission capability and the corresponding processing method of the terminal device refer to the following Table 9 or Table 10 for details .
  • the network device may schedule the terminal device according to the non-sequential transmission processing capability reported by the terminal device. Further, the network device can configure through high-level signaling whether there will be a non-sequential transmission scenario within a certain time, and if it does, how the terminal device will handle it.
  • the methods provided in the embodiments of the present application are introduced from the perspective of terminal equipment, network equipment, and interaction between the terminal equipment and the network equipment.
  • the terminal device and the network device include hardware structures and/or software modules corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiment of the present application may divide the terminal device and the network device into functional modules according to the foregoing method examples.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • the present application also provides a communication device 1300, which can be used to implement the method shown in FIG. 7 in the above process, and the communication device 1300 can be applied to a terminal device or a chip of a terminal device.
  • the communication device 1300 may include a transceiver module 1301 and a processing module 1302.
  • the transceiver module 1301 is configured to receive first data information; the processing module 1302 is configured to process the first data information received by the transceiver module 1301 to obtain the processing status of the first data information; The module 1301 is further configured to send feedback information, the feedback information includes a first identifier and a second identifier, and the first identifier and/or the second identifier are used to determine the processing status of the first data information.
  • the transceiver module 1301 is used to receive first data information; the processing module 1302 is used to process the first data information received by the transceiver module 1301; the transceiver module 1301 is also used to send feedback information, so The feedback information includes a first identifier, and the first identifier is used to determine an acknowledgement ACK, a negative acknowledgement NACK, or the processing status of the first data information.
  • the physical device corresponding to the processing module 1302 may be the controller/processor 1403 shown in FIG. 14 below, and the physical device corresponding to the transceiver module 1301 may be the physical device shown in FIG. 14 below.
  • FIG. 14 shows a simplified schematic diagram of a possible design structure of the terminal device involved in the foregoing embodiment.
  • the terminal device 1400 may include a transmitter 1401, a receiver 1402, a controller/processor 1403, a memory 1404, and a modem processor 1405.
  • the transmitter 1401 adjusts (for example, analog conversion, filtering, amplifying, and up-conversion, etc.) the output samples and generates an uplink signal, which is transmitted to the network device in the foregoing embodiment via an antenna.
  • the antenna receives the downlink signal sent by the network device in the above embodiment.
  • the receiver 1402 adjusts (eg, filters, amplifies, down-converts, and digitizes, etc.) the signal received from the antenna and provides input samples.
  • the encoder 1406 receives service data and signaling information sent on the uplink, and processes the service data and signaling messages (for example, formatting, encoding, and interleaving).
  • the modulator 1407 further processes (for example, symbol mapping and modulation) the encoded service data and signaling messages and provides output samples.
  • the demodulator 1409 processes (e.g., demodulates) the input samples and provides symbol estimates.
  • the decoder 1408 processes (e.g., deinterleaves and decodes) the symbol estimates and provides decoded data and signaling messages sent to the UE.
  • the encoder 1406, the modulator 1407, the demodulator 1409, and the decoder 1408 may be implemented by a synthesized modem processor 1405. These units are processed according to the radio access technology adopted by the radio access network (for example, NR and other evolved system access technologies).
  • the controller/processor 1403 controls and manages the actions of the terminal device, and is used to execute the processing performed by the terminal device in the foregoing embodiment.
  • the controller/processor 1403 may control the receiver 1402 to receive the first data information, process the first data information, obtain the processing status of the first data information, and control the transmitter 1401 to send feedback information, and/or this Other processes described in the application examples.
  • the controller/processor 1403 may be used to support the terminal device to execute the steps related to the terminal device in FIG. 7 and the like.
  • the memory 1404 can store program codes and data related to the terminal device 1400.
  • the terminal device 1400 provided in the embodiment of the present application is used to implement the communication method shown in FIG. 7 that involves the terminal device, or the function of the terminal device in the process shown in FIG. 7.
  • the terminal device 1400 only the connection relationship between the various modules of the terminal device 1400 is described.
  • the specific solution of the communication method of the terminal device 1400 and the specific actions performed by the terminal device 1400 refer to the related description in the foregoing method embodiment, which is not described here.
  • the present application also provides a communication device 1500, which can be used to implement the method shown in FIG. 7 in the above process, and the communication device 1500 can be applied to a network device or a chip of a network device .
  • the communication device 1500 may include a transceiver module 1501.
  • a processing module 1502 may also be included.
  • the transceiver module 1501 can be used to send first data information and receive feedback information.
  • the feedback information includes a first identifier and a second identifier, and the first identifier and/or the second identifier are used to determine the processing status of the first data information.
  • the processing module 1502 may be used to determine the first data information, or process feedback information, and so on.
  • the transceiver module 1501 can be used to send first data information and receive feedback information.
  • the feedback information includes a first identifier, and the first identifier is used to determine an acknowledgement ACK, a negative acknowledgement NACK, or the processing status of the first data information.
  • the processing module 1502 may be used to determine the first data information, or process feedback information, and so on.
  • the physical device corresponding to the processing module 1502 may be the controller/processor 1602 shown in FIG. 16 below, and the physical device corresponding to the transceiver module 1501 may be the physical device shown in FIG. 16 below.
  • FIG. 16 shows a schematic diagram of a possible structure of the network device involved in the foregoing embodiment.
  • the network device 1600 may include: a transmitter/receiver 1601, a controller/processor 1602, and a memory 1603.
  • the transmitter/receiver 1601 is used to support sending and receiving information between a network device and the terminal device in the foregoing embodiment, and to support radio communication between the network device and other terminal devices.
  • the controller/processor 1602 performs various functions for communicating with terminal devices.
  • the uplink signal from the terminal device is demodulated by the receiver 1601 via the antenna interface, and further processed by the controller/processor 1602 to restore the service data and signaling messages sent by the terminal device. .
  • service data and signaling messages are processed by the controller/processor 1602, demodulated by the transmitter 1601 to generate downlink signals, and transmitted to the terminal device via the antenna.
  • the controller/processor 1602 controls and manages the actions of the network device, and is used to execute the processing performed by the network device in the foregoing embodiment.
  • the controller/processor 1602 may control the transmitter 1601 to send the first data information, and/or control the receiver 1601 to receive feedback information, and/or other processes described in the embodiment of the present application.
  • the controller/processor 1602 may be used to support the terminal device to execute the steps related to the network device in FIG. 7 and the like.
  • the memory 1603 can store program codes and data related to the network device 1600.
  • the network device 1600 may further include a communication unit 1604, and the communication unit 1604 is configured to support the network device to communicate with other network entities.
  • the network device 1600 provided in the embodiments of the present application can be used to implement the functions of the network device in the communication method shown in FIG. 7. Only the connection relationship between the various modules in the network device 1600 is described here. For the specific solution and specific actions performed by the device 1600 for processing the communication method, refer to the related description in the foregoing method embodiment, which is not described herein again.
  • the embodiment of the present application also provides a communication system, including the aforementioned network device and terminal device.
  • the embodiment of the present application also provides a communication system, which includes the aforementioned network device and terminal device.
  • the embodiments of the present application also provide a computer storage medium, the storage medium stores a software program, and when the software program is read and executed by one or more processors, any one or more of the above The method provided by the embodiment.
  • the computer storage medium may include: U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk and other media that can store program codes.
  • the embodiments of the present application also provide a chip, which includes a processor, which is used to implement the functions involved in any one or more of the above embodiments, such as acquiring or processing the information involved in the above methods or news.
  • the chip further includes a memory for storing program instructions and data executed by the processor.
  • the chip may also include chips and other discrete devices.
  • the processor may be a central processing unit (Central Processing Unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), and dedicated integrated Circuit (application-specific integrated circuit, ASIC), ready-made programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor, or any conventional processor.
  • the memory may include read-only memory and random access memory, and provides instructions and data to the processor.
  • a part of the memory may also include a non-volatile random access memory.
  • the bus system may also include a power bus, a control bus, and a status signal bus.
  • various buses are marked as bus systems in the figure.
  • the steps of the above method can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

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Abstract

一种通信方法及装置,该方法包括:终端设备可对网络设备发送的数据信息采用不同的处理方式,比如,可为丢弃,也可为缓存,也可为正常解调和译码。且终端设备上报自身的处理方式至网络设备,以使得网络设备根据不同的情况,对数据信息进行不同的处理。比如,对于丢弃的处理情况,网络设备可采用重传,对于缓存的情况,网络设备不再重传,可直接指示终端设备对缓存的数据信息,进行解调和译码等。与终端设备反馈NACK,网络设备总是重传的处理方式相比,可节省网络开销。

Description

一种通信方法及装置
相关申请的交叉引用
本申请要求在2019年03月27日提交中国专利局、申请号为201910239537.6、申请名称为“一种通信方法及装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域,尤其涉及一种通信方法及装置。
背景技术
在基于蜂窝的数据通信中,为了有效进行数据重传,引入了混合自动重传请求(hybrid automatic repeat request,HARQ)机制。整个数据传输的过程可为:网络设备向终端设备发送数据信息。终端设备在接收到所述数据信息后,对所述数据信息进行解调和译码,如果所述数据信息解调和译码正确,则反馈应答消息(acknowledgement,ACK)至网络设备。如果所述数据信息解调和/或译码错误,则反馈否定应答(negative acknowledgment,NACK)至网络设备。相应的,网络设备在接收到ACK后,可结束上述数据信息的传输。网络设备在接收到NACK后,可对上述数据信息进行重传,网络开销较大。
发明内容
本申请提供一种通信方法及装置,以降低网络开销。
第一方面,提供一种通信方法,包括:终端设备接收第一数据信息;所述终端设备对所述第一数据信息进行处理,获得所述第一数据信息的处理状态;所述终端设备发送反馈信息,所述反馈信息包括第一标识和第二标识,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态。
由上可见,终端设备可针对自身的处理能力,对网络设备发送的数据信息采用不同的处理方式,比如,可为丢弃,也可为缓存,也可为正常解调和译码。且终端设备上报自身的处理方式至网络设备,以使得网络设备根据不同的情况,对数据信息进行不同的处理。比如,对于丢弃的处理情况,网络设备可采用重传,对于缓存的情况,网络设备不再重传,可直接指示终端设备对缓存的数据信息,进行解调和译码等。与终端设备反馈NACK,网络设备总是重传的处理方式相比,可节省网络开销。
在一种可能的设计中,所述第一数据信息的处理状态,包括:所述第一数据信息已完成解调和译码,或者,所述第一数据信息未完成解调和/或译码。
在一种可能的设计中,所述第一数据信息未完成解调和/或译码,包括:所述第一数据信息被丢弃;或者,所述第一数据信息被缓存。
在一种可能的设计中,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态,包括:所述第一标识为第一值,所述第二标识为第三值,则确定所述第一数据信息的处理状态为所述第一数据信息被缓存;或者,所述第一标识为第一值,所述第二标 识为第四值,则确定所述第一数据信息的处理状态为所述第一数据信息被丢弃;或者,所述第一标识为第一值或第二值,所述第二标识为第五值,则确定所述第一数据信息的处理状态为所述第一数据信息已完成解调和译码。
由上可见,可根据第一标识和/或第二标识,确定第一数据信息的处理状态。进一步,网络设备可根据第一数据信息的处理状态,采用不同的处理方式。相对于,反馈NACK,总是重传的处理方式相比,可节省网络开销。
在一种可能的设计中,所述第一标识和/或所述第二标识还用于确定肯定应答ACK或否定应答NACK。
由上可见,在本申请实施例中,第一标识和/或第二标识除用于确定第一数据信息的处理状态外,还用于确定NACK或ACK。NACK或ACK无需额外指示,进一步减小网络开销。
在一种可能的设计中,所述第一标识和/或所述第二标识还用于确定肯定应答ACK或否定应答NACK,包括:所述第一标识为第二值,则确定为ACK;或者,所述第一标识为第一值,所述第二标识为第五值,则确定为NACK。
在一种可能的设计中,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态,包括:所述第二标识为第六值,所述第一标识为第八值,则确定所述第一数据信息的处理状态为所述第一数据信息被丢弃;或者,所述第二标识为第六值,所述第一标识为第九值,则确定所述第一数据信息的处理状态为所述第一数据信息被缓存。
在一种可能的设计中,所述第一标识和/或所述第二标识还用于确定肯定应答ACK或否定应答NACK。
在一种可能的设计中,所述第一标识和/或所述第二标识还用于确定肯定应答ACK或否定应答NACK,包括:所述第二标识为第七值,所述第一标识为第八值,则确定NACK;或者,所述第二标识为第七值,所述第一标识为第九值,则确定ACK。
在一种可能的设计中,所述第二标识携带于所述第一数据信息的反馈应答信息中,或者,所述第二标识携带于所述第二数据信息的反馈应答信息中,所述第二数据信息与所述第一数据信息不同。
由上可见,将上述第二标识放置至第二数据信息的反馈应答信息中,可减少漏检第一数据信息的PDCCH带来的影响。由于第二标识可用于确定第一数据信息的处理状态,那么即使终端设备如果漏检第一数据信息的PDCCH,也就第一的反馈没有影响。由上可见,第二标识可携带于不同数据信息的反馈应答信息中,相对于,固定携带于第一数据信息的反馈信答信息中,灵活性高,易于实现。
在一种可能的设计中,所述方法还包括:所述终端设备接收重传的第一数据信息,所述重传的第一数据信息与所述丢弃的第一数据信息的冗余版本RV相同;或者,所述终端设备接收第一指示信息;所述终端设备根据所述第一指示信息,对已缓存的第一数据信息进行解调和/或译码,且根据解调和/或译码结果,反馈ACK或NACK。第二方面,提供一种通信方法,包括:网络设备发送第一数据信息;所述网络设备接收反馈信息,所述反馈信息中包括第一标识和第二标识,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态。在一种可能的设计中,所述第一数据信息的处理状态,包括:所述第一数据信息已完成解调和译码,或者,所述第一数据信息未完成解调和/或译码。
在一种可能的设计中,所述第一数据信息未完成解调和/或译码,包括:所述第一数据 信息被丢弃;或者,所述第一数据信息被缓存。
在一种可能的设计中,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态,包括:所述第一标识为第一值,所述第二标识为第三值,则确定所述第一数据信息的处理状态为所述第一数据信息被缓存;或者,所述第一标识为第一值,所述第二标识为第四值,则确定所述第一数据信息的处理状态为所述第一数据信息被丢弃;或者,所述第一标识为第一值或第二值,所述第二标识为第五值,则确定所述第一数据信息的处理状态为所述第一数据信息已完成解调和译码。
在一种可能的设计中,所述第一标识和/或所述第二标识还用于确定肯定应答ACK或否定应答NACK。
在一种可能的设计中,所述第一标识和/或所述第二标识还用于确定肯定应答ACK或否定应答NACK,包括:所述第一标识为第二值,则确定为ACK;或者,所述第一标识为第一值,所述第二标识为第五值,则确定为NACK。
在一种可能的设计中,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态,包括:所述第二标识为第六值,所述第一标识为第八值,则确定所述第一数据信息的处理状态为所述第一数据信息被丢弃;或者,所述第二标识为第六值,所述第一标识为第九值,则确定所述第一数据信息的处理状态为所述第一数据信息被缓存。
在一种可能的设计中,所述第一标识和/或所述第二标识还用于确定肯定应答ACK或否定应答NACK。
在一种可能的设计中,所述第一标识和/或所述第二标识还用于确定肯定应答ACK或否定应答NACK,包括:所述第二标识为第七值,所述第一标识为第八值,则确定NACK;或者,所述第二标识为第七值,所述第一标识为第九值,则确定ACK。
在一种可能的设计中,所述第二标识携带于所述第一数据信息的反馈应答信息中,或者,所述第二标识携带于所述第二数据信息的反馈应答信息中,所述第二数据信息与所述第一数据信息不同。
在一种可能的设计中,所述方法还包括:所述网络设备发送重传的第一数据信息,所述重传的第一数据信息与所述丢弃的第一数据信息的冗余版本RV相同;或者,所述网络设备发送第一指示信息,所述第一指示信息用于指示所述终端设备对已缓存的第一数据信息进行解调和/或译码,且根据解调和/或译码结果,反馈ACK或NACK。
由上可见,网络设备可根据第一数据信息的处理状态不同,对数据信息进行不同的处理。比如,对于丢弃的处理情况,网络设备可采用重传,对于缓存的情况,网络设备不再重传,可直接指示终端设备对缓存的数据信息,进行解调和译码等。与终端设备反馈NACK,网络设备总是重传的处理方式相比,可节省网络开销。
第三方面,提供一种通信方法,包括:终端设备接收第一数据信息;所述终端设备对所述第一数据信息进行处理;所述终端设备发送反馈信息,所述反馈信息中包括第一标识,所述第一标识用于确定肯定应答ACK、否定应答NACK,或者,所述第一数据信息的处理状态。
由上可见,在本申请实施例中,反馈信息中可包括第一标识,第一标识可用于确定ACK,NACK或第一数据信息的处理状态,与现有方案的兼容性好,易于实现。
在一种可能的设计中,所述第一数据信息的处理状态包括所述第一数据信息被丢弃,或者,所述第一数据信息被缓存。
在一种可能的设计中,所述第一标识用于确定肯定应答ACK、否定应答NACK,或者,所述第一数据信息的处理状态,包括:所述第一标识为第一值,则确定ACK;或者,所述第一标识为第二值,则确定NACK;或者,所述第一标识为第三值,则确定所述第一数据信息被丢弃;或者,所述第一标识为第四值,则确定所述第一数据信息被缓存。
在一种可能的设计中,当所述第一标识用于确定所述第一数据信息的处理状态时,所述第一标识携带于所述第一数据信息的反馈应答信息中,或者,所述第一标识携带于第二数据信息的反馈应答信息中,所述第二数据信息与所述第一数据信息不同。
在一种可能的设计中,所述方法还包括:所述终端设备接收重传的第一数据信息,所述重传的第一数据信息与所述丢弃的第一数据信息的冗余版本RV相同;或者,所述终端设备接收第一指示信息,所述终端设备根据第一指示信息,对已缓存的第一数据信息进行解调和/或译码,且根据解调和/或译码结果,反馈ACK或NACK。
第四方面,提供一种通信方法,包括:网络设备发送第一数据信息;所述网络设备接收反馈信息,所述反馈信息中包括第一标识,所述第一标识用于确定肯定应答ACK、否定应答NACK,或者,所述第一数据信息的处理状态。
在一种可能的设计中,所述第一数据信息的处理状态包括所述第一数据信息被丢弃,或者,所述第一数据信息被缓存。
在一种可能的设计中,所述第一标识用于确定肯定应答ACK、否定应答NACK,或者,所述第一数据信息的处理状态,包括:所述第一标识为第一值,则确定ACK;或者,所述第一标识为第二值,则确定NACK;或者,所述第一标识为第三值,则确定所述第一数据信息被丢弃;或者,所述第一标识为第四值,则确定所述第一数据信息被缓存。
在一种可能的设计中,当所述第一标识用于确定所述第一数据信息的处理状态时,所述第一标识携带于所述第一数据信息的反馈应答信息中,或者,所述第一标识携带于第二数据信息的反馈应答信息中,所述第二数据信息与所述第一数据信息不同。
在一种可能的设计中,所述方法还包括:所述网络设备发送重传的第一数据信息,所述重传的第一数据信息与所述丢弃的第一数据信息的冗余版本RV相同;或者,所述网络设备发送第一指示信息,所述第一指示信息用于指示所述终端设备对已缓存的第一数据信息进行解调和/或译码,且根据解调和/或译码结果,反馈ACK或NACK。
第五方面,提供一种通信装置,包括收发模块和处理模块;
其中,收发模块,用于接收第一数据信息;处理模块,用于对所述收发模块接收的第一数据信息进行处理,获得所述第一数据信息的处理状态;所述收发模块,还用于发送反馈信息,所述反馈信息包括第一标识和第二标识,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态。
关于收发模块和处理模块的具体实现可参见上述第一方面以及任一种可能设计的记载,在此不再说明。
第六方面,提供一种通信装置,包括处理器和存储器;
其中,存储器,用于存储指令;处理器,用于控制接收器接收第一数据信息,对第一数据信息进行处理,获得第一数据信息的处理状态,以及控制发送器反馈信息,所述反馈信息包括第一标识和第二标识,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态。
关于处理器、发送器以及接收器的具体实现可参见上述第一方面以及任一种可能设计 的记载,在此不再说明。
第七方面,提供一种通信装置,包括收发模块;可选的,还可包括处理模块。
其中,收发模块,用于发送第一数据信息以及接收反馈信息。其中,所述反馈信息中包括第一标识和第二标识,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态。可选的,所述处理模块,用于确定第一数据信息。
关于处理模块和收发模块的具体实现可参见上述第二方面以及任一种可能设计的记载,在此不再说明。
第八方面,提供一种通信装置,包括处理器和存储器;
其中,存储器,用于存储指令;处理器,用于控制发送器发送第一数据信息,以及控制接收器接收反馈信息。其中,所述反馈信息中包括第一标识和第二标识,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态。
关于处理器、发送器以及接收器的具体实现可参见上述第二方面以及任一种可能设计的记载,在此不再说明。
第九方面,提供一种通信装置,包括收发模块和处理模块。
其中,收发模块,用于接收第一数据信息;处理模块,用于对所述收发模块接收的第一数据信息进行处理;收发模块,还用于发送反馈信息,所述反馈信息中包括第一标识,所述第一标识用于确定肯定应答ACK、否定应答NACK,或者,所述第一数据信息的处理状态。
关于收发模块和处理模块的具体实现可参见上述第三方面以及任一种可能设计的记载,在此不再说明。
第十方面,提供一种通信装置,包括处理器和存储器;
其中,存储器,用于存储指令;处理器,用于控制接收器接收第一数据信息,对所述第一数据信息进行处理,以及控制发送器发送反馈信息,所述反馈信息中包括第一标识,所述第一标识用于确定肯定应答ACK、否定应答NACK,或者,所述第一数据信息的处理状态。
关于处理器、发送器以及接收器的具体实现可参见上述第三方面以及任一种可能设计的记载,在此不再说明。
第十一方面,提供一种通信装置,包括:收发模块。可选的,还可包括处理模块。
其中,收发模块,用于发送第一数据信息,以及接收反馈信息,所述反馈信息中包括第一标识,所述第一标识用于确定肯定应答ACK、否定应答NACK,或者,所述第一数据信息的处理状态。可选的,所述处理模块,可用于确定第一数据信息。
关于收发模块和处理模块的具体实现,可参见上述第四方面以及任一可能设计的记载,在此不再说明。
第十二方面,提供一种通信装置,包括处理器和存储器;
其中,存储器,用于存储指令;处理器,用于控制发送器发送第一数据信息以及控制接收器接收反馈信息。
关于处理器和收发器的具体实现,可参见上述第四方面以及任一种可能设计的记载,在此不再说明。
第十三方面,本申请还提供一种计算机可读存储介质,包括:计算机软件指令;当所述计算机软件指令在通信装置或内置在通信装置的芯片中运行时,使得所述装置执行上述 任一方面的任意一种实施方式提供的方法。
第十四方面,本申请还提供了一种包含指令的计算机程序产品,当所述指令在计算机上运行时,使得计算机执行上述任一方面中的任一种方法。
附图说明
图1为本申请实施例提供的通信系统的一示意图;
图2为本申请实施例提供的HARQ传输的一示意图;
图3为本申请实施例提供的基于TB传输和重传的一示意图;
图4为本申请实施例提供的基于CBG传输和重传的一示意图;
图5为本申请实施例提供的顺序传输的一示意图;
图6a和图6b为本申请实施例提供的非顺序传输的一示意图;
图7为本申请实施例提供的通信方法的一流程示意图;
图8至图12为本申请实施例提供的非顺序重传的示意图;
图13为本申请实施例提供的通信装置的一结构示意图;
图14为本申请实施例提供的通信装置的一结构示意图;
图15为本申请实施例提供的通信装置的一结构示意图;
图16为本申请实施例提供的通信装置的一结构示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述。
图1示出了本申请实施例提供的一种通信系统100,该通信系统100包括终端设备101和接入网设备102。可选的,通信系统100还可包括核心网设备103。
其中,终端设备101通过无线的方式,接入至接入网设备102,接入网设备102可通过有线或无线的方式与核心网设备103连接。可选的,核心网设备103与接入网设备102可以是独立的不同物理设备,或者,核心网设备103与接入网设备102为同一个物理设备,该物理设备上集成了核心网设备103的全部/部分功能和接入网设备102的全部/部分逻辑功能。终端设备101可以是固定的,或移动的。
可以理解的是,在本申请实施例中,图1所示的通信系统100的组成,仅为示例性说明,并不作为对本申请的限定。比如,在一示例中,所述通信系统100还可包括无线中继设备或无线回传设备等。在图1所示的通信系统100中,并不限定核心网设备、接入网设备和终端设备的数量。比如,通信系统100可包括除2数量的终端设备外,其它数量的终端设备等。
在一示例中,接入网设备102和终端设备101可以部署在陆地上,包括室内或室外、手持或车载等;接入网设备102和终端设备101也可以部署在水面上;接入网设备102和终端设备101还可以部署在空中的飞机、气球和卫星上等。本申请实施例对接入网设备102和终端设备101的应用场景不做限定。
在一示例中,图1所示的通信系统可以适用于下行信号传输,也可以适用于上行信号传输,还可以适用于设备到设备(device to device,D2D)的信号传输。对于下行信号传输,发送设备是接入网设备102,对应的接收设备是终端设备101。对于上行信号传输,发送 设备是终端设备101,对应的接收设备是接入网设备102。对于D2D的信号传输,发送设备是终端设备101,对应的接收设备也是终端设备101。本申请的实施例对信号的传输方向不做限定。
在一示例中,接入网设备102和终端设备101之间以及终端设备101和终端设备101之间可以通过授权频谱(licensed spectrum)进行通信,也可以通过免授权频谱(unlicensed spectrum)进行通信,也可以同时通过授权频谱和免授权频谱进行通信。接入网设备102和终端设备101之间以及终端设备101和终端设备101之间可以通过6G以下的频谱进行通信,也可以通过6G以上的频谱进行通信,还可以同时使用6G以下的频谱和6G以上的频谱进行通信。本申请的实施例对接入网设备102和终端设备101之间所使用的频谱资源不做限定。
为了便于理解,示例性的给出了与本申请相关概念的说明以供参考,如下所示。可以理解的是,上述相关概念的说明仅为示例性说明,并不作为对本申请的限定。
1)网络设备,是网络侧中一种用于发射或接收信号的实体,网络设备可以是用于与终端设备通信的设备。比如,网络设备可包括图1所示的接入网设备102和/或核心网设备103。或者,网络设备可包括新一代基站(generation Node B,gNodeB)。或者,网络设备可以是无线局域网(wireless local area networks,WLAN)中的AP,全球移动通信系统(global system for mobile communication,GSM)或码分多址(code division multiple access,CDMA)中的基站(base transceiver station,BTS),也可以是宽带码分多址(wideband code division multiple access,WCDMA)中的基站(NodeB,NB),还可以是长期演进(long term evolution,LTE)中的演进型基站(evolutional Node B,eNB或eNodeB),或者中继站或接入点,或者车载设备、可穿戴设备以及未来5G网络中的网络设备或者未来演进的公共陆地移动网络(public land mobile network,PLMN)网络中的网络设备,或NR系统中的gNodeB等。另外,在本申请实施例中,网络设备为小区提供服务,终端设备通过该小区使用的传输资源(例如,频域资源,或者说,频谱资源)与网络设备进行通信,该小区可以是网络设备(例如基站)对应的小区,小区可以属于宏基站,也可以属于小小区(small cell)对应的基站,这里的小小区可以包括:城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等,这些小小区具有覆盖范围小、发射功率低的特点,适用于提供高速率的数据传输服务。此外,在其它可能的情况下,网络设备可以是其它为终端设备提供无线通信功能的装置。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。为方便描述,本申请实施例中,为终端设备提供无线通信功能的装置称为网络设备。
2)终端设备,可以是能够接收网络设备调度和指示信息的无线终端设备,无线终端设备可以是指向用户提供语音和/或数据连通性的设备,或具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端设备可以经无线接入网(如,radio access network,RAN)与一个或多个核心网或者互联网进行通信,无线终端设备可以是移动终端设备,如移动电话(或称为“蜂窝”电话,手机(mobile phone))、计算机和数据卡,例如,可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语言和/或数据。例如,个人通信业务(personal communication service,PCS)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(wireless local loop,WLL)站、个人数字助理(personal digital assistant,PDA)、平板电脑(Pad)、带无线收发功能的 电脑等设备。无线终端设备也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station),移动站(mobile station)、移动台(mobile station,MS)、远程站(remote station)、接入点(access point,AP)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户站(subscriber station,SS)、用户端设备(customer premises equipment,CPE)、终端(terminal)、用户设备(user equipment,UE)、移动终端(mobile terminal,MT)等。无线终端设备也可以是可穿戴设备以及下一代通信系统,例如,5G网络中的终端设备或者未来演进的公共陆地移动网络(public land mobile network,PLMN)网络中的终端设备,NR通信系统中的终端设备等。
3)HARQ机制:在基于蜂窝的数据通信中,为了有效进行数据的重传,引入了HARQ机制。整个数据传输的过程可为:网络设备向终端设备发送调度信息和数据信息。终端设备在接收到调度信息后,根据调度信息的指示,接收数据信息。终端设备对所述数据信息进行解调和译码,如果所述数据信息解调和译码正确,则反馈ACK至网络设备。如果所述数据信息解调和译码错误,则反馈NACK至网络设备。比如,如图2所示,网络设备可在时隙(slot)n发送调度信息,所述调度信息可指示终端设备在时隙n+2接收数据信息,以及在时隙n+4反馈HARQ信息。相应的,终端设备在接收到所述调度信息后,根据调度信息的指示,在时隙n+2接收数据信息,对数据信息进行解调和译码,根据解调和译码结果,在时隙n+4反馈HARQ信息,所述HARQ信息可具体为ACK或NACK等。相应的,网络设备在接收到ACK后,可结束对上述数据信息的传输。网络设备在接收到NACK,可对上述数据信息进行重传。可选的,所述HARQ机制可包括基于传输块(transport block,TB)的传输和重传,和/或,基于编码块组(code block group,CBG)的传输和重传。
4)基于TB的传输和重传:发送端将传输块(transport block,TB)切割成多个编码块(code block,CB),每个CB均进行循环冗余码校验(cyclic redundancy check,CRC)校验和编码。针对接收端,当TB中的所有CB均译码正确时,反馈ACK至发送端。发送端接收到ACK后,发送新的TB数据。或者,针对接收端,当TB中的任一个CB译码错误时,则反馈NACK至发送端。发送端接收到NACK后,重新对TB进行发送,直到接收到AKC或TB的重传达到一定门限为止。
在一示例中,如图3所示,发送端可将待发送的TB划分为4个CB,4个CB的索引可依次为CB0、CB1、CB2和CB3。发送端以TB为单位向接收端发送上述4个CB。相应的,接收端在接收到所述TB后,可对TB中CB0至CB3进行解调和/或译码。示例的,可参见图3中(标号为“1”和“2”的步骤),如果CB0至CB3中的任一CB解调和/或译码错误(在图3所示的示例中,是以CB0错误为例进行说明的),则向发送端反馈NACK。相应的,发送端在接收到NACK时,对TB进行重传。示例的,可参见图3中(标号为“3”和“4”的步骤),如果CB0至CB3均解调和/或译码正确,则向发送端反馈ACK。相应的,发送端在接收到ACK时,结束对TB的传输。
5)基于CBG的传输和重传:发送端将TB切割成N个CB,将N个CB切割成M个CBG。可选的,所述N的大小与TB的长度相关,所述M的大小为网络设备配置的。接收端在接收到所述TB后,依次对M个CBG进行解调和/或译码。针对一CBG,如果该CBG中的每个CB均解调和/或译码正确,则反馈ACK,如果该CBG中的任一个CB解调和/或译码错误,则反馈NACK。
在一示例中,如图4所示,发送端可将待发送的TB切割为4个CB,4个CB的编号 分别为CB0、CB1、CB2和CB3。将上述4个CB,切割为2个CBG,编号分别为CBG0和CBG1。其中,CBG0中包括CB0和CB1,CBG1中包括CB2和CB3。接收端在接收到该TB后,分别对CBG0包括的CB0和CB1进行解调和/或译码,以及对CBG1包括的CB2和CB3进行解调和/或译码。
示例的,如图4所示(可参见图4中标号为“1”和“2”的步骤),对CBG0包括的CB0和CB1进行解调和译码,如果CB0解调和译码错误,CB1解调和译码正确,针对CBG0反馈NACK。对CBG1包括的CB2和CB3进行解调和译码,如果CB2和CB3解调和译码均正确,针对CBG1反馈ACK。针对整个TB,接收端反馈(NACK,ACK)。相应的,发送端在接收到(NACK,ACK)后,单独对CBG0重传。
示例的,如图4所示(可参见图4中标号为“3”和“4”的步骤),针对CBG0,CB0至CB3解调和译码均正确,则针对CBG0和CBG1均反馈ACK。针对整个TB,接收端反馈(ACK,ACK)。相应的,发送端在接收到(ACK,ACK)后,结束对整个TB的传输。
6)顺序传输(in order transmission):以调度信息A对应数据信息A和HARQ反馈A,调度信息B对应数据信息B和HARQ反馈B为例,详细说明顺序传输的过程。示例的,顺序传输可指若调度信息A在时域上的传输早于调度信息B,则数据信息A在时域上的传输早于数据信息B,HARQ反馈A在时域上的传输早于HARQ反馈B。比如,如图5所示,在一顺序传输的示例中,调度信息A在时隙n中传输,调度信息B在时隙n+1中传输,调度信息A在时域上的传输时间早于调度信息B。数据信息A在时隙n+2中传输,数据信息B在时隙n+3中传输,数据信息A在时域上的传输时间早于数据信息B。HARQ反馈A在时隙n+4中传输,HARQ反馈B在时隙n+5中传输,HARQ反馈A在时域上的传输时间早于HARQ反馈B。
7)非顺序传输(out of order transmission):以调度信息A对应数据信息A和HARQ反馈A,调度信息B对应数据信息B和HARQ反馈B为例,详细说明非顺序传输的过程。示例的,非顺序传输可指若调度信息A在时域上的传输早于调度信息B,但数据信息A在时域上的传输晚于数据信息B,和/或,HARQ反馈A在时域上的传输晚于HARQ反馈B。如图6a所示,在一非顺序传输的示例中,调度信息A在时隙n中传输,调度信息B在时隙n+1中传输,调度信息A在时域上的传输时间早于调度信息B,数据信息A在时隙n+3中传输,数据信息B在时隙n+2中传输,数据信息A的传输时间晚于数据信息B,HARQ反馈A在时隙n+4中传输,HARQ反馈B在时隙n+5中传输,HARQ反馈A在时域上的传输时间早于HARQ反馈B。如图6b所示,在一非顺序传输的示例中,调度信息A在时隙n中传输,调度信息B在时隙n+1中传输,调度信息A在时域上的传输时间早于调度信息B。数据信息A在时隙n+2中传输,数据信息B在时隙n+3中传输,数据信息A在时域上的传输时间早于数据信息B。HARQ反馈A在时隙n+5中传输,HARQ反馈B在时隙n+4中传输,HARQ反馈A在时域上的传输时间晚于HARQ反馈B。可以理解的是,在以下示例中,非顺序传输还可包括:调度信息A在时域上的传输早于调度信息B,但数据信息A在时域上的传输晚于数据信息B,HARQ反馈A在时域上的传输晚于HARQ反馈B。
8)增强移动带宽(Enhanced Mobile Broadband,eMBB)业务:eMBB业务的数据量比较大,而且传输速率比较高,对时延要求比高,因此通常采用较长的时间调度单元进行数据传输以提高传输效率,例如,采用15kHz子载波间隔的一个时隙,对应14个时域符 号,对应的时间长度为1ms。可以看出,eMBB业务要求低时延,业务调度时间间隔可以变长,间隔可以是1ms或者更长。
9)高可靠低时延通信(Ultra reliable and Low Latency Communications,URLLC)业务:URLLC业务对时延要求极高,不考虑可靠性的情况下,传输时延要求在0.5毫秒以内;在达到99.999%的可靠性的前提下,传输时延要求在1ms以内。在长期演进(long term evolution,LTE)系统中,最小的时间调度单元为一个1ms时间长度的传输时间间隔(transmission time interval,TTI)。为了满足URLLC业务的传输时延需求,无线空口的数据传输可以使用更短的时间调度单元,例如,使用迷你时隙(mini-slot)或更大的子载波间隔的时隙作为最小的时间调度单元。其中,一个迷你时隙包括一个或多个时域符号。可选的,时域符号可以是正交频分复用(orthogonal frequency division multiplexing,OFDM)符号。当子载波间隔为15kHz时,一个时隙包括6个或7个时域符号,对应的时间长度为0.5毫秒;当子载波间隔为60kHz时,一个时隙对应的时间长度则缩短为0.125ms。可以看出,URLLC业务要求低时延,从而使得网络设备传输业务的时间间隔变短,比如时间间隔为0.125毫秒,或者0.0625毫秒等。
10)和/或:描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B的情况,其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。
可以理解的是,在本申请的描述中,“第一”、“第二”等词汇,仅用于区分描述的目的,而不能理解为指示或暗示相对重要性,也不能理解为指示或暗示顺序。
在本申请实施例中,“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言,使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
本申请提供一种通信方法及装置,该通信方法及装置的原理为:终端设备可对网络设备发送的数据信息采用不同的处理方式,比如,可为丢弃,也可为缓存,也可为正常解调和译码。且终端设备上报数据信息的处理状态至网络设备,以使得网络设备根据不同的情况,对数据信息进行不同的处理。比如,对于丢弃的处理状态,网络设备可重传,对于缓存的处理状态,网络设备不再重传,可直接指示终端设备对缓存的数据信息,进行解调和译码等。相对于终端设备反馈NACK,网络设备总是重传的处理方式,可节省网络开销。
如图7所示,提供一种通信方法的流程,该流程中的网络设备可为上述图1所示的接入网设备102或核心网设备103,终端设备可为上述图1所示的终端设备101,该流程包括:
S701.网络设备向终端设备发送第一数据信息。
S702.终端设备对第一数据信息进行处理,获得第一数据信息的处理状态。
S703.终端设备向网络设备发送反馈信息。
一示例中,所述反馈信息中包括第一标识和第二标识,所述第一标识和/或第二标识用于确定第一数据信息的处理状态。示例的,所述第一数据信息的处理状态,包括:所述第一数据信息已完成解调和译码,或者,所述第一数据信息未完成解调和/或译码。可选的,所述第一数据信息未完成解调和/或译码,包括:所述第一数据信息被丢弃;或者,所述第一数据信息被缓存。可选的,第一数据信息被丢弃(例如discard)。
一示例中,所述反馈信息中包括第一标识,所述第一标识用于确定肯定应答ACK、否定应答NACK,或者,所述第一数据信息的处理状态。可选的,所述第一数据信息的处理状态包括所述第一数据信息被丢弃,或者,所述第一数据信息被缓存。示例的,所述第一标识为第一值,则确定ACK;或者,所述第一标识为第二值,则确定NACK;或者,所述第一标识为第三值,则确定所述第一数据信息被丢弃;或者,所述第一标识为第四值,则确定所述第一数据信息被缓存。比如,可用2比特表示第一标识,所述第一值为00,第二值为01,第三值为10,第四值为10。
可选的,图7所示的流程,还可包括:网络设备在接收到反馈信息时,获取反馈信息中的第一标识和第二标识。网络设备根据第一标识和第二标识,确定第一数据信息的处理状态。网络设备根据第一数据信息的处理状态,进行相应的处理。示例的,当第一数据信息的处理状态为被丢弃时,网络设备可重传第一数据信息,相应的,终端设备接收重传的第一数据信息,且重传的第一数据信息和丢弃的第一数据信息的冗余版本(redundancy version,RV)相同。示例中,当第一数据信息的处理状态为被缓存时,网络设备可向终端设备发送第一指示,终端设备根据第一指示,对已缓存的第一数据信息进行解调和/或译码,且根据解调和/或译码结果,反馈ACK或NACK。比如,如果终端设备对已缓存的第一数据信息的解调和译码结果正确,则反馈ACK,否则反馈NACK等。可选的,对第一指示的功能,还可作如下说明:所述第一指示可激活终端设备仅做HARQ-ACK反馈,即终端设备在接收到第一指示后,可对HARQ-ACK仅进行一次反馈,所述HARQ-ACK中的反馈内容可为ACK或NACK等。进一步的,终端设备在接收到第一指示后,如果缓存的第一数据信息还未完成解调和/或译码。则UE需要先完成解调和/或译码后,根据解调和译码结果,再进行HARQ-ACK反馈。比如,如果解调和译码正确,则HARQ-ACK反馈为ACK,否则,HARQ-ACK反馈为NACK等。
由上可见,在本申请实施例中,终端设备可上报第一数据信息的处理状态至网络设备,相应的,网络设备根据第一数据信息的处理状态不同,进行不同的处理。比如,对于丢弃的处理情况,网络设备可采取重传,对于缓存的情况,网络设备不再重传,可直接指示终端设备对缓存的数据信息,进行解调和译码等。相对于终端设备反馈NACK,网络设备总是重传的处理方式,可节省网络开销。
需要指出的是,在本申请实施例中,对于缓存的数据信息,终端设备可采用不同的处理方式。比如,终端设备可自行寻找时机对缓存的数据信息进行解调和/或译码。或者,终端设备在接收到重传信令后,将缓存的数据信息和重传的数据信息合并后,再进行解调和/或译码。或者,终端设备在收到其它信令后,再对缓存的数据信息进行解调和/或译码等。比如,其它信息可为仅令做HARQ-ACK反馈的信令等。
示例1
在本申请实施例中,第一标识的取值可为第一值或第二值,第二标识的值可为第三值、第四值或第五值。比如,第一标识可用1比特表示,所述第一值可为0,第二值可为1。第二标识可用2比特表示,所述第三值可为00,第四值可为01,第五值可为10。可以理解的是,在本申请实施例中,以第一标识的第一值为0,第二值为1,第二标识的第三值为00,第四值为01,第五值为10为例,进行说明,并不作为对本申请的限定。
示例的,如表1所示,所述第一标识为第一值,所述第二标识为第三值,则确定所述第一数据信息的处理状态为所述第一数据信息被缓存;或者,所述第一标识为第一值,所 述第二标识为第四值,则确定所述第一数据信息的处理状态为所述第一数据信息被丢弃;或者,所述第一标识为第一值或第二值,所述第二标识为第五值,则确定所述第一数据信息的处理状态为所述第一数据信息已完成解调和译码。
Figure PCTCN2020081797-appb-000001
表1
可选的,所述第一标识和/或所述第二标识还用于确定ACK或NACK。比如,所述第一标识为第二值,则确定为ACK;或者,所述第一标识为第一值,所述第二标识为第五值,则确定为NACK。
针对上述示例1,提供一应用场景:如图8所示,网络设备在时隙n向终端设备发送DCI-1,所述DCI-1调度终端设备在时隙n+2接收PDSCH-1以及在时隙n+5发送HARQ反馈-1。其中,所述PDSCH-1中携带有第一数据信息。所述HARQ反馈1中可携带ACK或NACK。可选的,DCI-1、PDSCH-1和HARQ反馈-1可应用于eMBB业务。关于eMBB业务可参见上述概念说明8)中的记载。
如图8所示,网络设备在时隙n+1向终端设备发送DCI-2,所述DCI-2调度终端设备在时隙n+3接收PDSHC-2以及在时隙n+4发送HARQ反馈-2。其中,所述PDSCH-2中携带有第二数据信息。所述HARQ反馈-2中可携带ACK或NACK。可选的,DCI-2、PDSCH-2和HARQ反馈-2可应用于URLLC业务。关于URLLC业务可参见上述概念说明9)中的记载。
通过上述分析可以看出,DCI-1在时隙n中传输,DCI-2在时隙n+1中传输,DCI-1在时域上的传输早于DCI-2。HARQ反馈-1在时隙n+5中传输,HARQ反馈-2在时隙n+4中传输,HARQ反馈-1在时域上的传输晚于HARQ反馈-2,出现了非顺序传输。
针对上述图8所示的非顺序传输,可将终端设备对PDSCH-1的处理状态,反馈至网络设备。比如,可将PDSCH-1的处理状态,携带至HARQ反馈-1中,可参见下述示例1.1的介绍。或者,可将PDSCH-1的处理状态,携带至HARQ反馈-2中,可参见下述示例1.2的介绍。其中,所述PDSCH-1的处理状态可具体用上述示例1中的表1所示的第一标识和/或第二标识表示。
示例1.1,针对上述图8所示的非顺序传输的情况,终端设备所发送的HARQ反馈-1中可包括两部分,分别为第一部分(part1)和第二部分(part2)。其中,第一部分可为ACK/NACK,第二部分可为终端设备对PDSCH-1的处理状态。可选的,终端设备可根据自身的处理能力,对PDSCH-1进行不同的处理。比如,当终端设备的处理能力较高,非顺序传输不影响终端设备对PDSCH-1的处理时,终端设备可对PDSCH-1进行正常的解调和译码。或者,当终端设备的处理能力较低,非顺序传输影响终端设备对PDSCH-1的处理时,终端设备可对PDSCH-1进行缓存,或者,丢弃PDSCH-1的处理方式。相应的,网络设备在确定终端设备对PDSCH-1的处理状态后,可根据终端设备的处理状态进行不同 的处理。相对于,终端设备直接丢弃PDSCH-1,反馈NACK,网络设备重传PDSCH-1的处理方式,可减少网络开销,提升系统容量,提高用户感受。
示例的,在示例1.1中,HARQ反馈-1中的第一部分可用1bit表示。比如,可用1表示ACK,用0表示NACK。HARQ反馈-1中的第二部分可用2bit表示。比如,可用00表示被缓存。01表示丢弃。10表示完成已完成解调和译码。
相应的,网设备在接收到终端设备反馈的HARQ反馈-1后,可首先解析HARQ反馈-1中的第一部分内容,如果第一部分中的内容为“1”,则表示第PDSCH-1已完成解调和译码,且传输正确,忽略第二部分中的内容。如果第一部分中的内容为“0”,则按照第二部分中的内容进行解析。比如,如果第二部分中的内容为“00”,则表示PDSCH-1被缓存。如果第二部分中的内容为“01”,则表示PDSCH-1已被丢弃。如果第二部分中的内容为“10”,表示PDSCH-1已完成解调和译码,但传输错误。
可选的,当多个PDSCH-1的HARQ反馈-1的信息在同一个上行信道中反馈时,即当PDSCH-1的码本复用一起反馈时。由于多个PDSCH-1中,最靠近PDSCH-2的PDSCH-1所受影响最大,因此,为了减少终端和基站的复杂度,可对多个PDSCH-1中最靠近PDSCH-1的数据增强HARQ反馈。
设定多个PDSCH-1中,包括目标PDSCH-1和非目标PDSCH-1。其中,多个PDSCH-1中,最靠近PDSCH-2为目标PDSCH-1。在多个PDSCH-1中,除目标PDSCH-1外的剩余PDSCH-1,可称为非目标PDSCH-1。那么对于目标PDSCH-1所对应的HARQ反馈中包括两部分,第一部分为ACK/NACK,第二部分为终端设备对PDSCH-1的处理状态。对于非目标PDSCH-1所对应的PDSCH-1所对应的HARQ反馈中仅包括一部分,该部分为ACK/NACK。
比如,如图9所示,多个PDSCH-1可表示为mPDSCH1、mPDSCH2和mPDSCH3。mPDSCH1对应HARQ反馈1,mPDSCH2对应HARQ反馈2,mPDSCH3对应HARQ反馈3。PDSCH2可表示为uPDSCH。HARQ反馈1、HARQ反馈2和HARQ反馈3可在目标HARQ反馈中反馈,该目标HARQ反馈中可包括两部分,分别为第一部分和第二部分。其中,第一部分中包括mPDSCH1所对应的ACK/NACK、mPDSCH2所对应的ACK/NACK,以及,mPDSCH3所对应的ACK/NACK。由于mPDSCH3在时域上,距离uPDSCH最近,因此第二部分中要包括终端设备对mPDSCH3的处理状态。可选的,仍可参照图9所示,uPDSCH可通过HARQ反馈4反馈。
示例1.2,针对上述图8所示的非顺序传输的情况,终端设备所反馈的HARQ反馈-2中可包括两部分,分别为第一部分(part1)和第二部分(part2)。其中,第一部分可为ACK/NACK,第二部分可为终端设备对PDSCH-1的处理状态。
在本申请实施例中,将上述PDSCH-1的处理状态,放置至HARQ反馈-2中,可减少漏检PDCCH-1带来的影响,即终端设备如果漏检PDCCH-1,则对PDSCH-1的反馈没有影响。
示例2
第一标识的取值可为第八值或第九值,第二标识的取值可为第六值或第七值。所述第一标识和第二标识可均用1比特表示。比如,第六值可为1,第七值可为0,第八值可为0,第九值可为1。可以理解的是,在本申请实施例中,以第六值可为1,第七值可为0,第八值可为0,第九值可为1为例进行说明的,并不作为对本申请的限定。
示例的,如表2所示,所述第二标识为第六值,所述第一标识为第八值,则确定所述第一数据信息的处理状态为所述第一数据信息被丢弃;或者,所述第二标识为第六值,所述第一标识为第九值,则确定所述第一数据信息的处理状态为所述第一数据信息被缓存。
第一标识(第八值/第九值) 第二标识(第六值/第七值) 含义解读
第八值(0) 第六值(1) 被丢弃
第九值(1) 第六值(1) 被缓存
第八值(0) 第七值(0) NACK
第九值(1) 第七值(0) ACK
表2
可选的,可参见上述表2所示,所述第一标识和/或所述第二标识还用于确定ACK或NACK。比如,所述第二标识为第七值,所述第一标识为第八值,则确定NACK;或者,所述第二标识为第七值,所述第一标识为第九值,则确定ACK。
针对示例2,提供一应用场景:该应用场景,可参见上述示例1中的图8中的记载,在此不再说明。在本申请实施例中,终端设备可将PDSCH-1的处理状态反馈至网络设备。比如,所述PDSCH-1的处理状态可携带至HARQ反馈-1中,或者,所述PDSCH-1的处理状态可携带至HARQ反馈-2中。其中,所述PDSCH-1的处理状态可用上述示例2中表2所示的第一标识和/或第二标识表示。
示例2.1,针对上述图8所示的非顺序传输的情况,终端设备所反馈的HARQ反馈-1中可包括两部分,分别为第一部分和第二部分。其中,第一部分可为ACK/NACK,第二部分可为终端设备对PDSCH-1的处理状态。比如,终端设备对PDSCH-1的处理状态可为终端设备对PDSCH-1完成解调和译码,或者,终端设备对PDSCH-1未完成解调和/或译码。
示例的,HARQ反馈-1中的第一部分可用1bit表示。比如,可用“1”表示ACK,用“0”表示NACK。HARQ反馈-1中的第二部分可用1bit表示。比如,可用“0”表示完成解调和译码。可用“1”表示未完成解调和译码。
相应的,网络设备在接收到终端设备反馈的HARQ反馈-1后,可先解析第二部分内容。根据第二部分的解析,再解析第一部分内容。
比如,如果第二部分内容为“0”,表示终端设备已完成对HARQ反馈-1的解调和译码。此时再解调第一部分内容。如果第一部分内容为“1”,表示ACK。如果第一部分内容为“0”,表示NACK。
比如,如果第二部分内容为“1”,表示终端设备未完成对HARQ反馈-1的解调和译码。此时再解调第一部分内容。如果第一部分内容为“0”,表示PDSCH-1被丢弃。如果第一部分内容为“1”,表示PDSCH-1被缓存。可以理解的是,在本申请实施例中,也可用第一部分内容为“1”,表示PDSCH-1被缓存。第一部分内容为“0”,表示PDSCH-1被丢弃等,并不作为对本申请的限定。
由上可见,通过ACK/NACK联合解析,提升反馈效率。且采用本申请的方法,当接收端对第二部分的内容译码发生错误时,如“0”错误解析成“1”时,其造成的负面影响较小。
示例2.2针对上述图8所示的非顺序传输的情况,终端设备所反馈的HARQ反馈-2中可包括两部分,分别为第一部分和第二部分。其中,第一部分为ACK/NACK,第二部分 为终端设备对PDSCH的处理状态。
在一示例中,HARQ反馈-2中的第一部分可用1bit表示。比如,可用“1”表示ACK,用“0”表示NACK。HARQ反馈-2中的第二部分用1bit表示。比如,可用“0”表示完成解调和译码。可用“1”表示未完成解调和译码。关于网络设备对HARQ反馈-2中第二部分的处理过程,可参见上述示例2.1中的记载,在此不再说明。
由上可见,将上述PDSCH-1的处理状态,放置至HARQ反馈-2中,可减少漏检PDCCH-1带来的影响,即终端设备如果漏检PDCCH-1,则对PDSCH-1的反馈没有影响。
示例3
在本申请实施例中,第二标识可携带于第一数据信息的反馈信答信息中,或者,所述第二标识可携带于第二数据信息的反馈信答信息中。比如,第一数据信息的反馈信答信息为第一HARQ反馈,第二数据信息的反馈信答信息为第二HARQ反馈。关于第二标识携带于第一HARQ反馈的情况,可参见上述示例1.1和示例2.1的记载。关于第二标识携带于第二HARQ反馈的情况,可参见上述示例1.2和示例2.2的记载。需要说明的是,在上述示例1.1、示例1.2、示例2.1和示例2.2中,第一HARQ表示为HARQ反馈-1,第二HARQ表示为HARQ-2。
示例4
设定第一数据信息对应第一HARQ反馈,第二数据信息对应第二HARQ反馈。可选的,第一数据信息和第二数据信息的传输可为非顺序的。比如,如图10所示,第一数据信息在时隙2中传输,第二数据信息在时隙3中传输。第一数据信息的传输在时域上早于第二数据信息。第一HARQ反馈在时隙6中传输,第二HARQ反馈在时隙4中传输。第一HARQ反馈的传输在时域上晚于第二HARQ反馈。
在本申请实施例中,网络设备或终端设备可采用以下示例4.1、示例4.2和示例4.3中的任一种或多种示例,确定第一数据信息的处理状态。可以理解的,在本申请实施例中,网络设备或终端设备也可采用其它方式,确定第一数据信息的处理状态,以下示例4.1至4.3并不作为对本申请的限定。需要说明的是,在本申请实施例的下述示例4.1至示例4.3中,预定义一些条件,网络设备或终端设备,根据预定义的条件,即可确定数据信息的处理状态,无需进行额外的信息交换,减小空口开销。
示例4.1(根据N3,确定第一数据信息的处理状态。关于N3的概念,可参见示例4.4中的记载)。
当N3大于或等于门限1时,可认为非顺序传输的场景下,不影响第一数据信息的解调和译码,即第一数据信息的处理状态为已完成对第一数据信息的解调和译码。可选的,门限1的取值可为5符号或者10符号。
当N3大于或等于门限2时,小于门限1时,可认为终端设备仅能对第一数据信息进行缓存,不能对第一数据信息进行解调和/或译码,即第一数据信息的处理状态为第一数据信息被缓存。可选的,门限2的取值可为3符号或5符号。
当N3小于门限2时,可认为终端设备丢弃第一数据信息,即第一数据信息的处理状态为第一数据信息被丢弃。
示例4.2(根据N3和N4,确定第一数据信息的处理状态。关于N3和N4的记载,可参见示例4.4的记载)。
当N3+N4大于门限1时,则认为终端设备能够完成译码,或者称非顺序传输的现象,不影响终端设备对第一数据信息的解调和译码,即第一数据信息的处理状态为已完成对第一数据信息的解调和译码。可选的,门限1的取值可为10。
当N3+N4大于门限2,小于或等于门限1时,可认为终端设备仅能对第一数据信息进行缓存,不能对第一数据信息进行解调和/或译码,即第一数据信息的处理状态为第一数据信息被缓存。可选的,门限2的取值可为6。
当N3+N4小于或等于门限2时,则认为终端设备会把第一数据信息进行丢弃,即第一数据信息的处理状态为第一数据信息被丢弃。
示例4.3
在本申请实施例中的,HARQ机制可包括基于TB的传输和重传,和/或,基于CBG的传输和重传。基于TB的传输和重传,可参见概念说明4)中的记载,基于CBG的传输和重传,可参见概念说明5)中的记载,在此不再说明。
示例的,以基于TB的传输和重传为例,对N3和N4进行说明。如图11所示,设定以TB为单位传输第一数据信息和第二数据信息。其中,传输第一数据信息的TB可称为eMBB TB。传输第二数据信息的TB可称为URLLC TB。第一数据信息所对应的HARQ反馈称为eMBB HARQ反馈,第二数据信息所对应的HARQ反馈称为URLLC HARQ反馈。
其中,仍可参照图11所示,设定1个时隙内包括14个时域符号,14个时域符号的编号依次为第1符号至第14符号。通过图11可以看出,eMBB TB在时隙2中传输,占用时隙2中的所有时域符号,即eMBB TB在时隙2中所占用的开始时域符号为第1符号,结束时域符号为第14符号。同理,URLLC TB在时隙3中传输,占用时隙3中的11个时域符号,URLLC TB在时隙3中的开始时域符号为第4符号,结束时域符号为第14符号。所述N3可定义为时隙2中用于传输eMBB TB的结束时域符号,与时隙3中用于传输URLLC TB的开始时域符号之间,间隔的时域符号数量。通过图11可以看出,上述时域符号数量为3,即N3的取值可为3。
进一步的,仍可参照图11所示,URLLC HARQ在时隙4中传输,占用时隙4中的3个时域符号,URLLC HARQ在时隙4中的开始时域符号为第5符号,结束时域符号为第7符号。所述N4可定义为时隙4中用于传输URLLC HARQ的开始时域符号,与时隙3中用于传输URLLC TB的结束时域符号之间,间隔的时域符号数量,通过图11可以看出,上述时域符号数量为4,即N4的取值可为4。
示例的,以基于CBG的传输和重传为例,对N3和N4进行说明。如图12所示,设定以TB为单位传输第一数据信息和第二数据信息。其中,传输第一数据信息的TB可称为eMBB TB。传输第二数据信息的TB可称为URLLC TB。第一数据信息所对应的HARQ反馈称为eMBB HARQ,第二数据信息所对应的HARQ反馈称为URLLC HARQ。
其中,可参照图12所示,将整个eMBB业务TB切割成4个CBG,编号分别为0至3。其中,在时域上,CBG0占用时隙2中的符号0至符号2进行传输,CBG1占用时隙2中的符号3至符号5进行传输,CBG2占用时隙2中的符号6至符号8进行传输,CBG3占用时隙2中的符号9至符号11进行传输。
比如,仍可参照图12所示,URLLC TB在时隙3中传输,占用时隙3中的符号2至 符号13。那么,针对CBG0,所述N3的取值为CBG0在时隙2中的结束时域符号(即时隙2中的符号2),与时隙3中用于传输URLLC TB的开始时隙符号(即时隙3中的符号2),之间间隔的符号数量。关于CBG1至CBG3中N3的取值,与上述CBG0中N3的取值过程相似,在此不再说明。
设定上述示例4.1中的门限1的取值为9,门限2的取值为6。根据上述示例4.1所公开的方法:
对于CBG0和CBG1中的N3满足大于或等于门限1的条件,因此CBG0和CBG1所对应的数据处理状态为已完成解调和译码。对于CBG2仅能满足大于或等于门限2的条件,因此CBG2所对应的数据处理状态为被缓存。对于CBG3不满足大于或等于2的条件,因此CBG3所对应的数据处理状态为被丢弃。
可选的,为了简化网络设备和终端设备的复杂度,N3的定义只取一个门限1(如上述门限1的取值可为10个符号),当第一数据信息中的CBG和第二数据间隔N3小于上述门限1时,则网络设备和终端设备认为需要丢弃该CBG。当第一数据中的CBG和第二数据之间的间隔N3大于或者等于门限1时,则网络设备和终端设备认为能够对该CBG进行解调和译码。即当第一数据中的CBG0和CBG1和第二数据之间的间隔N3都大于门限1时,则网络设备和终端设备认为能够对该CBG0和CBG1完成解调和译码,所反馈的ACK/NACK是有效的。如第一数据中的CBG2和CBG3和第二数据之间的间隔N3都小于门限1,则网络设备和终端设备认为不能够对该CBG2和CBG3能够完成解调和译码,终端设备可丢弃CBG2和CBG3,所反馈的ACK/NACK是无效的。
可以理解的是,本申请实施例中的“丢弃”,可表示终端设备不对相关数据块进行译码,也可以称为“跳过该数据块“的译码。
可选的,在本申请实施例中,上述示例4.1中的N3和上述示例4.2中的N3+N4所对应门限的设定,可跟以下因素相关:
数据的子载波间隔。比如,子载波间隔越小,对应的符号长度越大,N3或者N3+N4的门限取值可越小;
数据调度带宽。比如,数据带宽越大,需要的解调和/或译码时间越长,N3或者N3+N4的门限越大。
示例的,关于上述示例4.1中的N3门限的设定,可参见下述表3所示。可选的,表3中的调度带宽可指eMBB业务的调度带宽。关于上述示例4.2中的N3+N4门限的设定,可参见下述表4所示。可选的,表4中的最大调度带宽可指eMBB业务和URLLC业务间的最大调度带宽。
Figure PCTCN2020081797-appb-000002
表3
  子载波间隔 最大调度带宽 门限1 门限2
情况1 15KHZ <50PRB 5 3
情况2 15KHZ 50--100PRB 4 2
情况3 15KHZ >100PRB 3 2
情况4 30KHZ <50PRB 8 5
情况5 30KHZ 50--100PRB 5 3
情况6 30KHZ >100PRB 4 2
表4
示例5
在本申请实施例中的,HARQ机制可包括基于TB的传输和重传,和/或,基于CBG的传输和重传。基于TB的传输和重传,可参见概念说明4)中的记载,基于CBG的传输和重传,可参见概念说明5)中的记载。
示例的,基于TB的传输和重传,由于针对整个TB仅反馈一个ACK/NACK,因此可在整个TB的反馈信息的后面,直接增加数据信息的处理状态。关于如何增加数据信息的处理状态可参见上述示例1和示例2的介绍,在此不再说明。
示例的,基于CBG的传输和重传,由于一个TB中包括一个或多个CBG,由于针对每个CBG均反馈ACK/NACK,因此可在每个CBG的反馈信息后均新增数据信息的处理状态(可参见下述示例5.1中的记载);或者,针对整个TB,仅增加一个数据信息的处理状态(可参见下述示例5.2中的记载)。
示例5.1针对每个CBG的反馈,都单独增加反馈信息。
示例的,每个CBG中所新增的反馈信息,可用2比特表示。比如,1个TB中包含4个CBG,那么对于4个CBG中的每个CBG,均新增2比特的反馈信息。或者,每个CBG中所新增的反馈信息,可用1比特表示。比如,1个TB中包括4个CBG,那么对于4个CBG中的每个CBG,均新增1比特的反馈信息。可选的,对于新增2比特反馈信息的处理方式,可参见上述示例2.1中的记载,对于新增1比特反馈信息的处理方式,可参见上述示例2.2中的记载。
示例5.2针对整个TB仅增加一个数据信息。比如,1个TB中包括4个CBG,那么针对该4个CBG,可仅新增加一部分反馈信息。
示例的,如表5所示,以TB包括4个CBG,编号分别为0至3为例,那么整个TB的HARQ反馈中包括两部分,分别为第一部分(part1)和第二部分(part2)。其中,第一部分对应原CBG HARQ-ACK反馈,第二部分为新增比特。可选的,对于第二部分的新增比特,可用1bit表示。当第二部分的数值为0时,表示该TB中所有CBG均完成解调和译码。当第二部分的数值为1时,表示该TB中的至少最后一个CBG被丢弃。
Figure PCTCN2020081797-appb-000003
表5
针对上述设定,网络设备侧的处理过程可为:先查找出CBG的丢弃边界,然后再找出完成CBG解调和译码的边界,最终确定丢弃的CBG,解调和译码的CBG,以及缓存的CBG等。
示例的,比如,按照发送时间的先后顺序进行排序,依次为CBG0至CBG7,ACK用1表示,NACK用0表示。如表6所示,整个的解析过程可如下:
1:从最后一个CBG(即CBG7)开始向前判断part1数据信息:如果part1信息是1,则认为前一个CBG(如CBG6)也是被丢弃,直到解析出第一个为0的part1信息为止(例如:CBG5所对应的part1信息为0)。其中,0表示前一个CBG没有被丢弃。
2:判断第一个没有丢弃的CBG,如果该CBG的part1信息是0,则认为是缓存;继续往前解析CBG的part1信息,直到解析到第一个CBG为1为止(例如:CBG2所对应的part1信息为1)。其中,1表示当前CBG正确译码(即为ACK);可选的,在步骤2中判断缓存,网络设备也可以解析成NACK,本申请实施例不作限定。
3:出现第一个ACK后,前面所有的CBG都认为是完成解调和译码,即可以解析成ACK或者NACK;
Figure PCTCN2020081797-appb-000004
表6
可选的,在上述示例5.2中,可将第二部分的信息用2bit表示,其解析过程与上述表5所示的解析过程相似,在此不再说明。示例的,2bit的表示过程可如下:
00:表示全部CBG完成解调和译码。
01:表示有CBG被丢弃,同时有CBG被缓存。
10:表示没有CBG被丢弃,但有CBG被缓存。
11:表示只有CBG被丢弃,没有CBG被缓存。
可选的,在本申请实施例中,当第二部分信息为10时,其第一部分的解析过程,可参见表7所示:
Figure PCTCN2020081797-appb-000005
表7
具体的,当第二部分为10时,可从最后一个CBG看起,0表示缓存,直到解析出第一个1位置,判断为ACK,后续均判断为完成译码,解析成NACK或者ACK。
可选的,在本申请实施例中,当第二部分信息为11时,第一部分的解析过程,可参见表8所示:
Figure PCTCN2020081797-appb-000006
表8
具体的,当第二部分为10时,从最后一个CBG看起,0表示丢弃缓存,直到解析出第一个1位置,判断为ACK,后续均判断为完成译码,解析成NACK或者ACK。
示例6
在本申请实施例中,终端设备可上报非顺序传输的能力至网络设备,关于非顺序传输能力所对应的上报过程以及终端设备相应的处理方法,可具体参见下述表9或表10所示。
Figure PCTCN2020081797-appb-000007
表9
Figure PCTCN2020081797-appb-000008
表10
可选的,网络设备可根据终端设备上报的非顺序传输处理能力,对终端设备进行调度。进一步的,网络设备可通过高层信令配置在一定的时间端内是否会出现非顺序传输场景,以及如果出现,终端设备如何处理等。
可以理解的是,在本申请实施例中,不同示例间可相互结合使用,也可单独使用,本申请实施例并不限定。
上述本申请提供的实施例中,分别从终端设备、网络设备、以及终端设备和网络设备之间交互的角度对本申请实施例提供的方法进行了介绍。可以理解的是,各个网元,例如终端设备、网络设备为了实现上述本申请实施例提供的方法中的各功能,终端设备和网络设备包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到,结合本文中所公开的实施例描述的各示例的算法步骤,本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对终端设备、网络设备进行功能模块的划分,例如,可以对应各个功能划分各个功能模块,也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。需要说明的是,本申请实施例中对模块的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。
基于以上构思,如图13所示,本申请还提供一种通信装置1300,通信装置1300可用于实现上述流程中图7所示的方法,通信装置1300可应用于终端设备或终端设备的芯片。该通信装置1300可包括收发模块1301和处理模块1302。
在一示例中,收发模块1301,用于接收第一数据信息;处理模块1302,用于对所述收发模块1301接收的第一数据信息进行处理,获得所述第一数据信息的处理状态;收发模块1301,还用于发送反馈信息,所述反馈信息包括第一标识和第二标识,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态。
在一示例中,收发模块1301,用于接收第一数据信息;处理模块1302,用于对所述收发模块1301接收的第一数据信息进行处理;收发模块1301,还用于发送反馈信息,所述反馈信息中包括第一标识,所述第一标识用于确定肯定应答ACK、否定应答NACK,或者,所述第一数据信息的处理状态。
关于收发模块1301和处理模块1302的具体功能,可参见上述方法实施例的介绍,在此不再说明。
需要说明的是,在通信装置1300中,处理模块1302对应的实体装置可为下述图14所示的控制器/处理器1403,收发模块1301对应的实体装置可为下述图14所示的接收器1402或发射器1401。
图14示出了上述实施例中所涉及的终端设备的一种可能的设计结构的简化示意图。终端设备1400可包括发射器1401,接收器1402,控制器/处理器1403,存储器1404和调制解调处理器1405。
其中,发射器1401调节(例如,模拟转换、滤波、放大和上变频等)该输出采样并生成上行链路信号,该上行链路信号经由天线发射给上述实施例中的网络设备。在下行链路中,天线接收上述实施例中网络设备发送的下行链路信号。所述接收器1402调节(例如,滤波、放大、下变频以及数字化等)从天线接收的信号并提供输入采样。在调制解调处理器1405中,编码器1406接收在上行链路上发送的业务数据和信令信息,并对业务数据和信令消息进行处理(例如,格式化、编码和交织)。调制器1407进一步处理(例如,符号映射和调制)编码后的业务数据和信令消息并提供输出采样。解调器1409处理(例如,解调)该输入采样并提供符号估计。解码器1408处理(例如,解交织和解码)该符号估计并提供发送给UE的已解码的数据和信令消息。编码器1406、调制器1407、解调器1409和解码器1408可以由合成的调制解调处理器1405来实现。这些单元根据无线接入网采用的无线接入技术(例如,NR及其他演进系统的接入技术)来进行处理。
示例的,控制器/处理器1403对终端设备的动作进行控制管理,用于执行上述实施例中由终端设备进行的处理。示例的,控制器/处理器1403可控制接收器1402接收第一数据信息,对第一数据信息进行处理,获取第一数据信息的处理状态,以及控制发射器1401 发送反馈信息,和/或本申请实施例描述的其它过程等。或者,示例的,所述控制器/处理器1403可用于支持终端设备执行图7中涉及终端设备的步骤等。所述存储器1404可存储终端设备1400涉及的程序代码和数据。
需要说明的是,本申请实施例提供的终端设备1400用于实现图7所示通信涉及终端设备的通信方法,或者图7所示流程中终端设备的功能。此处仅对终端设备1400各个模块之间的连接关系进行了描述,终端设备1400处理通信方法的具体方案以及具体执行的动作参见上述方法实施例中的相关描述,在此不再说明。
基于以上构思,如图15所示,本申请还提供一种通信装置1500,该通信装置1500可用于实现上述流程中图7所示的方法,通信装置1500可应用于网络设备或网络设备的芯片。该通信装置1500可包括收发模块1501。可选的,还可包括处理模块1502。
在一示例中,收发模块1501,可用于发送第一数据信息和接收反馈信息。其中,所述反馈信息中包括第一标识和第二标识,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态。可选的,处理模块1502,可用于确定第一数据信息,或者,对反馈信息进行处理等。
在一示例中,收发模块1501,可用于发送第一数据信息和接收反馈信息。其中,所述反馈信息中包括第一标识,所述第一标识用于确定肯定应答ACK、否定应答NACK,或者,所述第一数据信息的处理状态。可选的,处理模块1502,可用于确定第一数据信息,或者,对反馈信息进行处理等。
需要说明的是,在通信装置1500中,处理模块1502对应的实体装置可为下述图16所示的控制器/处理器1602,收发模块1501对应的实体装置可为下述图16所示的发射器或接收器1601。
图16示出了上述实施例中所涉及的网络设备的一种可能的结构示意图,网络设备1600可包括:发射器/接收器1601,控制器/处理器1602以及存储器1603。
示例的,发射器/接收器1601用于支持网络设备与上述实施例中的终端设备之间收发信息,以及支持所述网络设备与其他终端设备之间进行无线电通信。控制器/处理器1602执行各种与终端设备通信的功能。在上行链路,来自终端设备的上行链路信号经由天线接口,由接收器1601进行解调,并进一步由控制器/处理器1602进行处理来恢复终端设备所发送的业务数据和信令消息等。在下行链路上,业务数据和信令消息由控制器/处理器1602进行处理,并由发射器1601进行解调来产生下行链路信,并经由天线发射给终端设备。
示例的,控制器/处理器1602对网络设备的动作进行控制管理,用于执行上述实施例中由网络设备进行的处理。示例的,控制器/处理器1602可控制发射器1601发送第一数据信息,和/或,控制接收器1601接收反馈信息,和/或本申请实施例描述的其它过程等。或者,示例的,所述控制器/处理器1602可用于支持终端设备执行图7中涉及网络设备的步骤等。
所述存储器1603可存储网络设备1600涉及的程序代码和数据。所述网络设备1600还可以包括通信单元1604,所述通信单元1604用于支持网络设备与其他网络实体进行通信。
需要说明的是,本申请实施例提供的网络设备1600可用于实现图7所示的通信方法 中网络设备的功能,此处仅对网络设备1600中各个模块之间的连接关系进行了描述,网络设备1600处理通信方法的具体方案以及具体执行的动作参见上述方法实施例中的相关描述,在此不再描述。
根据本申请实施例提供的方法,本申请实施例还提供一种通信系统,包括前述的网络设备和终端设备。
根据本申请实施例提供的方法,本申请实施例还提供一种通信系统,其包括前述的网络设备和终端设备。
基于以上实施例,本申请实施例还提供了一种计算机存储介质,该存储介质中存储软件程序,该软件程序在被一个或多个处理器读取并执行时可实现上述任意一个或多个实施例提供的方法。该计算机存储介质可以包括:U盘、移动硬盘、只读存储器、随机存取存储器、磁碟或者光盘等各种可以存储程序代码的介质。
基于以上实施例,本申请实施例还提供了一种芯片,该芯片包括处理器,用于实现上述任意一个或多个实施例所涉及的功能,例如获取或处理上述方法中所涉及的信息或者消息。可选地,该芯片还包括存储器,该存储器,用于存储处理器所执行的程序指令和数据。该芯片,也可以包含芯片和其他分立器件。
应理解,在本申请实施例中,处理器可以是中央处理单元(Central Processing Unit,CPU),该处理器还可以是其他通用处理器、数字信号处理器(digital signal processor,DSP)、专用集成电路(application-specific integrated circuit,ASIC)、现成可编程门阵列(field programmable gate array,FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器,也可以是任何常规的处理器等。
该存储器可以包括只读存储器和随机存取存储器,并向处理器提供指令和数据。存储器的一部分还可以包括非易失性随机存取存储器。
该总线系统除包括数据总线之外,还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见,在图中将各种总线都标为总线系统。在实现过程中,上述方法的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。为避免重复,这里不再详细描述。

Claims (55)

  1. 一种通信方法,其特征在于,包括:
    接收第一数据信息;
    对所述第一数据信息进行处理,获得所述第一数据信息的处理状态;
    发送反馈信息,所述反馈信息包括第一标识和第二标识,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态。
  2. 如权利要求1所述的方法,其特征在于,所述第一数据信息的处理状态,包括:
    所述第一数据信息已完成解调和译码,或者,所述第一数据信息未完成解调和/或译码。
  3. 如权利要求2所述的方法,其特征在于,所述第一数据信息未完成解调和/或译码,包括:所述第一数据信息被丢弃;或者,所述第一数据信息被缓存。
  4. 如权利要求1至3任一项所述的方法,其特征在于,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态,包括:
    所述第一标识为第一值,所述第二标识为第三值,则确定所述第一数据信息的处理状态为所述第一数据信息被缓存;或者,
    所述第一标识为第一值,所述第二标识为第四值,则确定所述第一数据信息的处理状态为所述第一数据信息被丢弃;或者,
    所述第一标识为第一值或第二值,所述第二标识为第五值,则确定所述第一数据信息的处理状态为所述第一数据信息已完成解调和译码。
  5. 如权利要求1至4任一项所述的方法,其特征在于,所述第一标识和/或所述第二标识还用于确定肯定应答ACK或否定应答NACK。
  6. 如权利要求5所述的方法,其特征在于,所述第一标识和/或所述第二标识还用于确定肯定应答ACK或否定应答NACK,包括:
    所述第一标识为第二值,则确定为ACK;或者,
    所述第一标识为第一值,所述第二标识为第五值,则确定为NACK。
  7. 如权利要求1至3任一项所述的方法,其特征在于,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态,包括:
    所述第二标识为第六值,所述第一标识为第八值,则确定所述第一数据信息的处理状态为所述第一数据信息被丢弃;或者,
    所述第二标识为第六值,所述第一标识为第九值,则确定所述第一数据信息的处理状态为所述第一数据信息被缓存。
  8. 如权利要求7所述的方法,其特征在于,所述第一标识和/或所述第二标识还用于确定肯定应答ACK或否定应答NACK。
  9. 如权利要求8所述的方法,其特征在于,所述第一标识和/或所述第二标识还用于确定肯定应答ACK或否定应答NACK,包括:
    所述第二标识为第七值,所述第一标识为第八值,则确定NACK;或者,
    所述第二标识为第七值,所述第一标识为第九值,则确定ACK。
  10. 如权利要求1至9任一项所述的方法,其特征在于,所述第二标识携带于所述第一数据信息的反馈应答信息中,或者,所述第二标识携带于所述第二数据信息的反馈应答信息中,所述第二数据信息与所述第一数据信息不同。
  11. 如权利要求1至10任一项所述的方法,其特征在于,所述方法还包括:
    接收重传的第一数据信息,所述重传的第一数据信息与所述丢弃的第一数据信息的冗余版本RV相同;或者,
    接收第一指示信息;
    根据所述第一指示信息,对已缓存的第一数据信息进行解调和/或译码,且根据解调和/或译码结果,反馈ACK或NACK。
  12. 一种通信方法,其特征在于,包括:
    发送第一数据信息;
    接收反馈信息,所述反馈信息中包括第一标识和第二标识,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态。
  13. 如权利要求12所述的方法,其特征在于,所述第一数据信息的处理状态,包括:
    所述第一数据信息已完成解调和译码,或者,所述第一数据信息未完成解调和/或译码。
  14. 如权利要求13所述的方法,其特征在于,所述第一数据信息未完成解调和/或译码,包括:所述第一数据信息被丢弃;或者,所述第一数据信息被缓存。
  15. 如权利要求12至14任一项所述的方法,其特征在于,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态,包括:
    所述第一标识为第一值,所述第二标识为第三值,则确定所述第一数据信息的处理状态为所述第一数据信息被缓存;或者,
    所述第一标识为第一值,所述第二标识为第四值,则确定所述第一数据信息的处理状态为所述第一数据信息被丢弃;或者,
    所述第一标识为第一值或第二值,所述第二标识为第五值,则确定所述第一数据信息的处理状态为所述第一数据信息已完成解调和译码。
  16. 如权利要求12至15任一项所述的方法,其特征在于,所述第一标识和/或所述第二标识还用于确定肯定应答ACK或否定应答NACK。
  17. 如权利要求16所述的方法,其特征在于,所述第一标识和/或所述第二标识还用于确定肯定应答ACK或否定应答NACK,包括:
    所述第一标识为第二值,则确定为ACK;或者,
    所述第一标识为第一值,所述第二标识为第五值,则确定为NACK。
  18. 如权利要求12至14任一项所述的方法,其特征在于,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态,包括:
    所述第二标识为第六值,所述第一标识为第八值,则确定所述第一数据信息的处理状态为所述第一数据信息被丢弃;或者,
    所述第二标识为第六值,所述第一标识为第九值,则确定所述第一数据信息的处理状态为所述第一数据信息被缓存。
  19. 如权利要求18所述的方法,其特征在于,所述第一标识和/或所述第二标识还用于确定肯定应答ACK或否定应答NACK。
  20. 如权利要求19所述的方法,其特征在于,所述第一标识和/或所述第二标识还用于确定肯定应答ACK或否定应答NACK,包括:
    所述第二标识为第七值,所述第一标识为第八值,则确定NACK;或者,
    所述第二标识为第七值,所述第一标识为第九值,则确定ACK。
  21. 如权利要求13至20任一项所述的方法,其特征在于,所述第二标识携带于所述第一数据信息的反馈应答信息中,或者,所述第二标识携带于所述第二数据信息的反馈应答信息中,所述第二数据信息与所述第一数据信息不同。
  22. 如权利要求13至21任一项所述的方法,其特征在于,所述方法还包括:
    发送重传的第一数据信息,所述重传的第一数据信息与所述丢弃的第一数据信息的冗余版本RV相同;或者,
    发送第一指示信息,所述第一指示信息用于指示所述终端设备对已缓存的第一数据信息进行解调和/或译码,且根据解调和/或译码结果,反馈ACK或NACK。
  23. 一种通信方法,其特征在于,包括:
    接收第一数据信息;
    对所述第一数据信息进行处理;
    发送反馈信息,所述反馈信息中包括第一标识,所述第一标识用于确定肯定应答ACK、否定应答NACK,或者,所述第一数据信息的处理状态。
  24. 如权利要求23所述的方法,其特征在于,所述第一数据信息的处理状态包括所述第一数据信息被丢弃,或者,所述第一数据信息被缓存。
  25. 如权利要求23或24所述的方法,其特征在于,所述第一标识用于确定肯定应答ACK、否定应答NACK,或者,所述第一数据信息的处理状态,包括:
    所述第一标识为第一值,则确定ACK;或者,
    所述第一标识为第二值,则确定NACK;或者,
    所述第一标识为第三值,则确定所述第一数据信息被丢弃;或者,
    所述第一标识为第四值,则确定所述第一数据信息被缓存。
  26. 如权利要求23至25任一项所述的方法,其特征在于,当所述第一标识用于确定所述第一数据信息的处理状态时,所述第一标识携带于所述第一数据信息的反馈应答信息中,或者,所述第一标识携带于第二数据信息的反馈应答信息中,所述第二数据信息与所述第一数据信息不同。
  27. 如权利要求23至26任一项所述的方法,其特征在于,所述方法还包括:
    接收重传的第一数据信息,所述重传的第一数据信息与所述丢弃的第一数据信息的冗余版本RV相同;或者,
    接收第一指示信息;
    根据所述第一指示信息,对已缓存的第一数据信息进行解调和/或译码,且根据解调和/或译码结果,反馈ACK或NACK。
  28. 一种通信方法,其特征在于,包括:
    发送第一数据信息;
    接收反馈信息,所述反馈信息中包括第一标识,所述第一标识用于确定肯定应答ACK、否定应答NACK,或者,所述第一数据信息的处理状态。
  29. 如权利要求28所述的方法,其特征在于,所述第一数据信息的处理状态包括所述第一数据信息被丢弃,或者,所述第一数据信息被缓存。
  30. 如权利要求28或29所述的方法,其特征在于,所述第一标识用于确定肯定应答ACK、否定应答NACK,或者,所述第一数据信息的处理状态,包括:
    所述第一标识为第一值,则确定ACK;或者,
    所述第一标识为第二值,则确定NACK;或者,
    所述第一标识为第三值,则确定所述第一数据信息被丢弃;或者,
    所述第一标识为第四值,则确定所述第一数据信息被缓存。
  31. 如权利要求28至30任一项所述的方法,其特征在于,当所述第一标识用于确定所述第一数据信息的处理状态时,所述第一标识携带于所述第一数据信息的反馈应答信息中,或者,所述第一标识携带于第二数据信息的反馈应答信息中,所述第二数据信息与所述第一数据信息不同。
  32. 如权利要求28至31任一项所述的方法,其特征在于,所述方法还包括:
    发送重传的第一数据信息,所述重传的第一数据信息与所述丢弃的第一数据信息的冗余版本RV相同;或者,
    发送第一指示信息,所述第一指示信息用于指示所述终端设备对已缓存的第一数据信息进行解调和/或译码,且根据解调和/或译码结果,反馈ACK或NACK。
  33. 一种通信装置,其特征在于,包括:
    收发模块,用于接收第一数据信息;
    处理模块,用于对所述收发模块接收的所述第一数据信息进行处理,获得所述第一数据信息的处理状态;
    所述收发模块,还用于发送反馈信息,所述反馈信息包括第一标识和第二标识,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态。
  34. 如权利要求33所述的装置,其特征在于,所述处理模块获得所述第一数据信息的处理状态,包括:
    所述第一数据信息已完成解调和译码,或者,所述第一数据信息未完成解调和/或译码。
  35. 如权利要求34所述的装置,其特征在于,所述第一数据信息未完成解调和/或译码,包括:所述第一数据信息被丢弃;或者,所述第一数据信息被缓存。
  36. 如权利要求33至35任一项所述的装置,其特征在于,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态,包括:
    所述第一标识为第一值,所述第二标识为第三值,则确定所述第一数据信息的处理状态为所述第一数据信息被缓存;或者,
    所述第一标识为第一值,所述第二标识为第四值,则确定所述第一数据信息的处理状态为所述第一数据信息被丢弃;或者,
    所述第一标识为第一值或第二值,所述第二标识为第五值,则确定所述第一数据信息的处理状态为所述第一数据信息已完成解调和译码。
  37. 如权利要求33至35任一项所述的装置,其特征在于,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态,包括:
    所述第二标识为第六值,所述第一标识为第八值,则确定所述第一数据信息的处理状态为所述第一数据信息被丢弃;或者,
    所述第二标识为第六值,所述第一标识为第九值,则确定所述第一数据信息的处理状态为所述第一数据信息被缓存。
  38. 如权利要求33至37任一项所述的装置,其特征在于,
    所述收发模块,还用于接收重传的第一数据信息,所述重传的第一数据信息与所述丢弃的第一数据信息的冗余版本RV相同;或者,
    所述收发模块,还用于接收第一指示信息;
    所述处理模块,还用于根据所述第一指示信息,对已缓存的第一数据信息进行解调和/或译码,且根据解调和/或译码结果,反馈ACK或NACK。
  39. 一种通信装置,其特征在于,包括:
    处理模块,用于确定第一数据信息;
    收发模块,用于发送所述处理模块确定的所述第一数据信息,以及接收反馈信息,所述反馈信息中包括第一标识和第二标识,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态。
  40. 如权利要求39所述的装置,其特征在于,所述第一数据信息的处理状态,包括:
    所述第一数据信息已完成解调和译码,或者,所述第一数据信息未完成解调和/或译码。
  41. 如权利要求40所述的装置,其特征在于,所述第一数据信息未完成解调和/或译码,包括:所述第一数据信息被丢弃;或者,所述第一数据信息被缓存。
  42. 如权利要求39至41任一项所述的装置,其特征在于,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态,包括:
    所述第一标识为第一值,所述第二标识为第三值,则确定所述第一数据信息的处理状态为所述第一数据信息被缓存;或者,
    所述第一标识为第一值,所述第二标识为第四值,则确定所述第一数据信息的处理状态为所述第一数据信息被丢弃;或者,
    所述第一标识为第一值或第二值,所述第二标识为第五值,则确定所述第一数据信息的处理状态为所述第一数据信息已完成解调和译码。
  43. 如权利要求39至41任一项所述的装置,其特征在于,所述第一标识和/或所述第二标识用于确定所述第一数据信息的处理状态,包括:
    所述第二标识为第六值,所述第一标识为第八值,则确定所述第一数据信息的处理状态为所述第一数据信息被丢弃;或者,
    所述第二标识为第六值,所述第一标识为第九值,则确定所述第一数据信息的处理状态为所述第一数据信息被缓存。
  44. 如权利要求39至43任一项所述的装置,其特征在于,
    所述收发模块,还用于发送重传的第一数据信息,所述重传的第一数据信息与所述丢弃的第一数据信息的冗余版本RV相同;或者,
    所述收发模块,还用于发送第一指示信息,所述第一指示信息用于指示所述终端设备对已缓存的第一数据信息进行解调和/或译码,且根据解调和/或译码结果,反馈ACK或NACK。
  45. 一种通信装置,其特征在于,包括:
    收发模块,用于接收第一数据信息;
    处理模块,用于对所述收发模块接收的所述第一数据信息进行处理;
    所述收发模块,还用于发送反馈信息,所述反馈信息中包括第一标识,所述第一标识用于确定肯定应答ACK、否定应答NACK,或者,所述第一数据信息的处理状态。
  46. 如权利要求45所述的装置,其特征在于,所述第一数据信息的处理状态包括所述第一数据信息被丢弃,或者,所述第一数据信息被缓存。
  47. 如权利要求45或46所述的装置,其特征在于,所述第一标识用于确定肯定应答 ACK、否定应答NACK,或者,所述第一数据信息的处理状态,包括:
    所述第一标识为第一值,则确定ACK;或者,
    所述第一标识为第二值,则确定NACK;或者,
    所述第一标识为第三值,则确定所述第一数据信息被丢弃;或者,
    所述第一标识为第四值,则确定所述第一数据信息被缓存。
  48. 如权利要求45至47任一项所述的装置,其特征在于,
    所述收发模块,还用于接收重传的第一数据信息,所述重传的第一数据信息与所述丢弃的第一数据信息的冗余版本RV相同;或者,
    所述收发模块,还用于接收第一指示信息;
    所述处理模块,还用于根据所述第一指示信息,对已缓存的第一数据信息进行解调和/或译码,且根据解调和/或译码结果,反馈ACK或NACK。
  49. 一种通信装置,其特征在于,包括:
    处理模块,用于确定第一数据信息;
    收发模块,用于发送所述处理模块确定的所述第一数据信息以及接收反馈信息,所述反馈信息中包括第一标识,所述第一标识用于确定肯定应答ACK、否定应答NACK,或者,所述第一数据信息的处理状态。
  50. 如权利要求49所述的装置,其特征在于,所述第一数据信息的处理状态包括所述第一数据信息被丢弃,或者,所述第一数据信息被缓存。
  51. 如权利要求49或50所述的装置,其特征在于,所述第一标识用于确定肯定应答ACK、否定应答NACK,或者,所述第一数据信息的处理状态,包括:
    所述第一标识为第一值,则确定ACK;或者,
    所述第一标识为第二值,则确定NACK;或者,
    所述第一标识为第三值,则确定所述第一数据信息被丢弃;或者,
    所述第一标识为第四值,则确定所述第一数据信息被缓存。
  52. 如权利要求49至51任一项所述的装置,其特征在于,
    所述收发模块,还用于发送重传的第一数据信息,所述重传的第一数据信息与所述丢弃的第一数据信息的冗余版本RV相同;或者,
    所述收发模块,还用于发送第一指示信息,所述第一指示信息用于指示所述终端设备对已缓存的第一数据信息进行解调和/或译码,且根据解调和/或译码结果,反馈ACK或NACK。
  53. 一种计算机可读存储介质,其特征在于,包括:计算机软件指令;
    当所述计算机软件指令在通信装置或内置在通信装置的芯片中运行时,使得所述装置执行如权利要求1至32任一项所述的方法。
  54. 一种通信装置,其特征在于,包括用于执行如权利要求1至11、12至22、23至27或28至32中的任一项所述方法的模块。
  55. 一种通信装置,其特征在于,包括处理器和通信接口,所述通信接口用于接收来自所述通信装置之外的其它通信装置的信号并传输至所述处理器或将来自所述处理器的信号发送给所述通信装置之外的其它通信装置,所述处理器通过逻辑电路或执行代码指令用于实现如权利要求1至11、12至22、23至27或28至32中任一项所述的方法。
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