WO2019096098A1 - Procédé et dispositif de communication sans fil - Google Patents

Procédé et dispositif de communication sans fil Download PDF

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Publication number
WO2019096098A1
WO2019096098A1 PCT/CN2018/115086 CN2018115086W WO2019096098A1 WO 2019096098 A1 WO2019096098 A1 WO 2019096098A1 CN 2018115086 W CN2018115086 W CN 2018115086W WO 2019096098 A1 WO2019096098 A1 WO 2019096098A1
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Prior art keywords
processing time
physical downlink
scheduling configuration
configuration information
shared channel
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PCT/CN2018/115086
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English (en)
Chinese (zh)
Inventor
冯淑兰
李�根
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华为技术有限公司
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Publication of WO2019096098A1 publication Critical patent/WO2019096098A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a wireless communication method and device.
  • a channel carrying a downlink transport block (TB) is referred to as a physical downlink shared channel (PDSCH).
  • the terminal device has a downlink processing delay, or is referred to as a downlink processing time, where the downlink processing time is that the terminal device receives the PDSCH that carries one TB, and the terminal device can send feedback information for the data scheduled by the TB.
  • the unit is orthogonal frequency division multiplexing (OFDM) symbols.
  • the downlink processing time is defined as a minimum duration between when the terminal device receives the end time of one PDSCH from the network device, and the terminal device can start transmitting the feedback information for the TB carried on the PDSCH, and the terminal device does not Receiving feedback information from the end time of receiving a PDSCH to the end time plus the downlink processing time to the network device.
  • the feedback information here refers to an acknowledgement (ACK)/negative acknowledgement (NACK) in a hybrid automatic repeat request (HARQ).
  • the embodiment of the present application provides a wireless communication method and device for providing a method for determining a downlink processing time.
  • a method of wireless communication which can be performed by a network device, such as a base station.
  • the method includes: determining, by the network device, a first scheduling configuration of the first physical downlink shared channel, where the first physical downlink shared channel is used to carry retransmission data of the first transport block, where the first scheduling configuration includes the a first time domain transmission length of a physical downlink shared channel, a first subcarrier spacing of a signal of the first physical downlink shared channel, and a first reference signal mapping manner of a demodulation reference signal of the first physical downlink shared channel At least one of the network devices, according to the first scheduling configuration of the first physical downlink shared channel, determining a first processing time for the first physical downlink shared channel; the network device, according to the first Determining, by a processing time, a transmission time of the first feedback signal sent by the terminal device, where the first feedback signal is used to carry a feedback signal for the first physical downlink shared channel, and the network device sends the first scheduling configuration information,
  • a wireless communication method which can be performed by a terminal device.
  • the method includes: determining, by the terminal device, first scheduling configuration information of the first physical downlink shared channel, where the first physical downlink shared channel is used to carry retransmission data of the first transport block, where the first scheduling configuration information includes a first time domain transmission length of the first physical downlink channel, a first subcarrier spacing of the signal of the first physical downlink shared channel, and a first reference signal mapping of a demodulation reference signal of the first physical downlink shared channel At least one of the modes; the terminal device receives the first physical downlink shared channel; the terminal device determines a first processing time according to the first scheduling configuration information, where the terminal device is receiving the first physical The feedback signal for the first physical downlink shared channel is not transmitted during the first processing time after the downlink shared channel end time.
  • the network device can determine, according to the first scheduling configuration of the first physical downlink shared channel, the first processing time for the first physical downlink shared channel when receiving and transmitting the retransmitted data, so that the network device can correctly Scheduling the time when the terminal device sends the feedback information to avoid the scheduling failure and the retransmission caused by the scheduling error. For example, the network device prematurely schedules the terminal device to send the feedback information. However, the terminal device does not complete the processing yet, and the terminal device does not. Any information that confirms the success of the reception will be fed back, and the network device will continue to schedule data retransmission, resulting in waste of spectrum resources.
  • the network device correctly estimates the first processing time, which helps to avoid transmission failure caused by premature scheduling of the terminal device to transmit feedback information, improve the success rate of the HARQ process, improve spectrum utilization, and reduce transmission delay.
  • the network device acquires second scheduling configuration information of the first transport block, where the second scheduling configuration information is a second physical downlink shared channel that carries initial transmission data of the first transport block.
  • Scheduling configuration information including a second time domain transmission length of the second physical downlink channel, a second subcarrier spacing of a signal of the second physical downlink shared channel, and the second At least one of the second reference signal mapping manners of the demodulation reference signals of the physical downlink shared channel, the network device determining the first scheduling configuration information according to the second scheduling configuration information.
  • the process of determining the first processing time can be further simplified if the first scheduling configuration is restricted in advance so that the first scheduling configuration is close to the second scheduling configuration.
  • the network device may obtain the second scheduling configuration information of the first transport block, and determine the first scheduling configuration information according to the second scheduling configuration information, so that the first scheduling configuration information and the second scheduling configuration are performed. Information is close or identical.
  • the network device determines the first scheduling configuration information according to the second scheduling configuration information, including at least one of the following: the network device determines the first time domain transmission length and the The second time domain transmission length deviation is less than the first threshold; the network device determines that the first subcarrier spacing is the same as the second subcarrier spacing; the network device determines the first reference signal mapping manner and the The second reference signal is mapped in the same manner.
  • the scheduling configuration indicated by the scheduling configuration information may include at least one of a time domain transmission length, a subcarrier spacing, and a reference signal mapping manner, so that at least one of the three conditions satisfies a corresponding condition, so that the first The first scheduling configuration indicated by the scheduling configuration information is close to the second scheduling configuration indicated by the second scheduling configuration information.
  • the first scheduling configuration and the second scheduling configuration may be the same, thereby even Determining the first processing time directly according to the first scheduling configuration, the determined first processing time may be the same as the processing time determined according to the second scheduling configuration, or may be relatively close, so that the determined according to the first processing time
  • the first feedback signal transmission time can meet the processing delay requirement of the terminal device for the combined decoding of the retransmission data and the initial transmission data, and reduce the possibility that the terminal device cannot send the first feedback signal or directly send the NACK because the processing cannot be completed. Reduce unnecessary scheduling transmission of the base station and improve the spectrum efficiency of the system.
  • the network device determines, according to the first scheduling configuration information of the first physical downlink shared channel, a first processing time for the first physical downlink shared channel, including at least one of the following: Determining, by the network device, a first mapping relationship between the scheduling configuration information and the processing time, the network device determining, according to the first scheduling configuration information and the first mapping relationship, the first processing time; a second mapping relationship between the carrier spacing and the processing time, the network device determining the first processing time according to the first subcarrier spacing and the second mapping relationship; and determining, by the network device, a default processing time, where Determining, by the network device, that the first processing time is the default processing time; the network device acquiring a first mapping relationship between the scheduling configuration information and the processing time, where the network device is configured according to the first scheduling configuration information Determining, by the first mapping mode, a third processing time, the network device determining that the first processing time is the third processing time The sum with the first margin.
  • the terminal device determines the first processing time according to the first scheduling configuration information, and includes at least one of the following: the terminal device acquires a first mapping relationship between scheduling configuration information and processing time, where the terminal device according to the The first scheduling configuration information and the first mapping relationship are determined, and the first processing time is determined; the terminal device determines a second mapping relationship between the subcarrier spacing and the processing time, and the terminal device is configured according to the first subcarrier spacing and The second mapping relationship determines the first processing time; the terminal device determines a default processing time, the terminal device determines that the first processing time is the default processing time; and the terminal device acquires a scheduling a first mapping relationship between the configuration information and the processing time, the terminal device determines a third processing time according to the first scheduling configuration information and the first mapping manner, and the network device determines that the first processing time is The sum of the three processing times and the first margin.
  • the network device or the terminal device may determine the first processing time according to the first scheduling configuration information and the predefined rule, where multiple predefined rules are provided, that is, multiple types of configuration information according to the first scheduling are provided. Pre-defined rules to determine the manner of the first processing time.
  • the network device may indicate which manner the terminal device specifically selects to determine the first processing time, or which method may be specifically determined by the protocol. The terminal device and the network device can use the same manner to determine the first processing time, thereby maintaining the consistency of the determination result of the terminal device and the network device.
  • the determining, by the network device, the first processing time for the first physical downlink shared channel according to the first scheduling configuration information of the first physical downlink shared channel including: acquiring by the network device
  • the second scheduling configuration information of the first transport block is the scheduling configuration information of the second physical downlink shared channel that carries the initial transmission data of the first transport block, and the second scheduling
  • the configuration information includes a second time domain transmission length of the second physical downlink channel, a second subcarrier spacing of the signal of the second physical downlink shared channel, and a demodulation reference signal of the second physical downlink shared channel. At least one of the second reference signal mapping manners; the network device determining the first processing time according to the first scheduling configuration information and the second scheduling configuration information.
  • the determining, by the terminal device, the first processing time, according to the first scheduling configuration information that: the terminal device acquires second scheduling configuration information of the first transporting block, where the second scheduling configuration information is Scheduling configuration information of the second physical downlink shared channel carrying the initial transmission data of the first transport block, the second scheduling configuration information, including a second time domain transmission length of the second physical downlink channel, the At least one of a second subcarrier spacing of the signal of the second physical downlink shared channel and a second reference signal mapping manner of the demodulation reference signal of the second physical downlink shared channel; the terminal device according to the first scheduling The configuration information and the second scheduling configuration information determine the first processing time.
  • the second scheduling configuration information is Scheduling configuration information of the second physical downlink shared channel carrying the initial transmission data of the first transport block
  • the second scheduling configuration information including a second time domain transmission length of the second physical downlink channel, the At least one of a second subcarrier spacing of the signal of the second physical downlink shared channel and a second reference signal mapping manner of the demodulation reference signal
  • the network device or the terminal device can determine the first processing time according to the first scheduling configuration information and the predefined rule.
  • the network device or the terminal device can determine the first processing time by using other methods.
  • the network device or the terminal device may further determine the first processing time according to the first scheduling configuration information and the second scheduling configuration information, so that the initial transmission data of the first transport block is considered when determining the first processing time, and The determined first processing time is such that the processing delay requirement for the combined transmission of the first transmission data and the retransmission data of the first transport block is satisfied.
  • a method of wireless communication which can be performed by a network device, such as a base station.
  • the method includes: the network device sends a first physical downlink shared channel, where the first physical downlink shared channel is used to carry retransmission data of the first transport block; and the network device is configured according to the first physical downlink shared channel.
  • Scheduling configuration information determining a first processing time for the first physical downlink shared channel, where the first processing time is used to determine a time at which the first feedback signal is received, and the first feedback signal is used to carry the a feedback signal of a physical downlink shared channel, where the first scheduling configuration information includes a first time domain transmission length of the first physical downlink channel and a first subcarrier spacing of a signal of the first physical downlink shared channel And at least one of a first reference signal mapping manner of the demodulation reference signal of the first physical downlink shared channel.
  • a wireless communication method which can be performed by a terminal device.
  • the method includes: determining, by the terminal device, first scheduling configuration information of the first physical downlink shared channel, where the first physical downlink shared channel is used to carry retransmission data of the first transport block, where the first scheduling configuration information includes a first time domain transmission length of the first physical downlink channel, a first subcarrier spacing of the signal of the first physical downlink shared channel, and a first reference signal mapping of a demodulation reference signal of the first physical downlink shared channel At least one of the modes; the terminal device receives the first physical downlink shared channel; the terminal device determines a first processing time according to the first scheduling configuration information, where the terminal device is receiving the first physical The feedback signal for the first physical downlink shared channel is not transmitted during the first processing time after the downlink shared channel end time.
  • the network device is configured to determine, according to the first scheduling configuration information of the first physical downlink shared channel, a first processing time for the first physical downlink shared channel, so that the first feedback signal determined according to the first processing time is obtained.
  • the transmission time can meet the processing delay requirement of the terminal device for the combined decoding of the retransmission data and the initial transmission data, and reduce the possibility that the terminal device cannot send the first feedback signal or directly send the NACK because the processing cannot be completed, thereby reducing the unnecessary base station. Scheduling transmission to improve the spectrum efficiency of the system.
  • the network device may acquire second scheduling configuration information of the first transport block, where the second scheduling configuration information is a second physics that carries initial transmission data of the first transport block.
  • a scheduling configuration information of the downlink shared channel where the second scheduling configuration information includes a second time domain transmission length of the second physical downlink channel, and a second subcarrier spacing of the signal of the second physical downlink shared channel, Determining at least one of a second reference signal mapping manner of a demodulation reference signal of the second physical downlink shared channel; the network device determining the first scheduling configuration information according to the second scheduling configuration information.
  • the process of determining the first processing time can be further simplified if the first scheduling configuration is restricted in advance so that the first scheduling configuration is close to the second scheduling configuration.
  • the network device may obtain the second scheduling configuration information of the first transport block, and determine the first scheduling configuration information according to the second scheduling configuration information, so that the first scheduling configuration information and the second scheduling configuration are performed. Information is close or identical.
  • the network device determines the first scheduling configuration information according to the second scheduling configuration information, including at least one of the following: the network device determines the first time domain transmission length and the The second time domain transmission length deviation is less than the first threshold; the network device determines that the first subcarrier spacing is the same as the second subcarrier spacing; the network device determines the first reference signal mapping manner and the The second reference signal is mapped in the same manner.
  • the scheduling configuration indicated by the scheduling configuration information may include at least one of a time domain transmission length, a subcarrier spacing, and a reference signal mapping manner, so that at least one of the three conditions satisfies a corresponding condition, so that the first
  • the first scheduling configuration indicated by the scheduling configuration information is close to the second scheduling configuration indicated by the second scheduling configuration information. If all three of the three scheduling configurations meet the corresponding conditions, the first scheduling configuration and the second scheduling configuration may be the same, thereby even
  • the first processing time is determined according to the first scheduling configuration, and the determined first processing time may be the same as the processing time determined according to the second scheduling configuration, or may be relatively close, so that the first processing time can satisfy the terminal device.
  • the possibility that the terminal device cannot send the first feedback signal or directly send the NACK because the processing cannot be completed is reduced, and the unnecessary scheduling transmission of the base station is reduced, and the system is improved. Spectral efficiency.
  • the network device determines, according to the first scheduling configuration information of the first physical downlink shared channel, a first processing time for the first physical downlink shared channel, including at least one of the following: Determining, by the network device, a first mapping relationship between the scheduling configuration information and the processing time, the network device determining, according to the first scheduling configuration information and the first mapping relationship, the first processing time; a second mapping relationship between the carrier spacing and the processing time, the network device determining the first processing time according to the first subcarrier spacing and the second mapping relationship; and determining, by the network device, a default processing time, where Determining, by the network device, that the first processing time is the default processing time; the network device acquiring a first mapping relationship between the scheduling configuration information and the processing time, where the network device is configured according to the first scheduling configuration information Determining, by the first mapping mode, a third processing time, the network device determining that the first processing time is the third processing time And the remainder of the first.
  • the terminal device determines the first processing time according to the first scheduling configuration information, and includes at least one of the following: the terminal device acquires a first mapping relationship between scheduling configuration information and processing time, where the terminal device according to the The first scheduling configuration information and the first mapping relationship are determined, and the first processing time is determined; the terminal device determines a second mapping relationship between the subcarrier spacing and the processing time, and the terminal device is configured according to the first subcarrier spacing and The second mapping relationship determines the first processing time; the terminal device determines a default processing time, the terminal device determines that the first processing time is the default processing time; and the terminal device acquires a scheduling a first mapping relationship between the configuration information and the processing time, the terminal device determines a third processing time according to the first scheduling configuration information and the first mapping manner, and the network device determines that the first processing time is The sum of the three processing times and the first margin.
  • the network device or the terminal device may determine the first processing time according to the first scheduling configuration information and the predefined rule, where multiple predefined rules are provided, that is, multiple types of configuration information according to the first scheduling are provided. Pre-defined rules to determine the manner of the first processing time.
  • the network device may indicate which manner the terminal device specifically selects to determine the first processing time, or which method may be specifically determined by the protocol. The terminal device and the network device can use the same manner to determine the first processing time, thereby maintaining the consistency of the determination result of the terminal device and the network device.
  • the determining, by the network device, the first processing time for the first physical downlink shared channel according to the first scheduling configuration information of the first physical downlink shared channel including:
  • the network device acquires second scheduling configuration information of the first transport block, where the second scheduling configuration information is scheduling configuration information of a second physical downlink shared channel that carries initial transmission data of the first transport block,
  • the second scheduling configuration information includes a second time domain transmission length of the second physical downlink channel, a second subcarrier spacing of the signal of the second physical downlink shared channel, and a second physical downlink shared channel of the second physical downlink shared channel. Demodulating at least one of a second reference signal mapping manner of the reference signal; the network device determining the first processing time according to the first scheduling configuration information and the second scheduling configuration information.
  • the determining, by the terminal device, the first processing time, according to the first scheduling configuration information that: the terminal device acquires second scheduling configuration information of the first transporting block, where the second scheduling configuration information is Scheduling configuration information of the second physical downlink shared channel carrying the initial transmission data of the first transport block, the second scheduling configuration information, including a second time domain transmission length of the second physical downlink channel, the At least one of a second subcarrier spacing of the signal of the second physical downlink shared channel and a second reference signal mapping manner of the demodulation reference signal of the second physical downlink shared channel; the terminal device according to the first scheduling The configuration information and the second scheduling configuration information determine the first processing time.
  • the second scheduling configuration information is Scheduling configuration information of the second physical downlink shared channel carrying the initial transmission data of the first transport block
  • the second scheduling configuration information including a second time domain transmission length of the second physical downlink channel, the At least one of a second subcarrier spacing of the signal of the second physical downlink shared channel and a second reference signal mapping manner of the demodulation reference signal
  • the network device or the terminal device can determine the first processing time according to the first scheduling configuration information and the predefined rule.
  • the network device or the terminal device can determine the first processing time by using other methods.
  • the network device or the terminal device may further determine the first processing time according to the first scheduling configuration information and the second scheduling configuration information, so that the initial transmission data of the first transport block is considered when determining the first processing time, thereby
  • the first feedback signal transmission time determined according to the first processing time can meet the processing delay requirement of the terminal device for the combined decoding of the retransmission data and the initial transmission data, and the terminal device cannot send the first feedback because the processing cannot be completed.
  • the possibility of signal or direct transmission of NACK reduces unnecessary scheduling transmission of the base station and improves the spectrum efficiency of the system.
  • a network device has the function of implementing the network device in the above method design. These functions can be implemented in hardware or in software by executing the corresponding software.
  • the hardware or software includes one or more units corresponding to the functions described above.
  • the specific structure of the network device can include a transceiver and a processor.
  • the processor and transceiver may perform the respective functions of the methods provided by any of the possible aspects of the first aspect or the first aspect described above.
  • a terminal device has the function of implementing the terminal device in the above method design. These functions can be implemented in hardware or in software by executing the corresponding software.
  • the hardware or software includes one or more units corresponding to the functions described above.
  • the specific structure of the terminal device may include a processor and a transceiver.
  • the processor and transceiver may perform the respective functions of the methods provided by any of the possible aspects of the second aspect or the second aspect described above.
  • a network device has the function of implementing the network device in the above method design. These functions can be implemented in hardware or in software by executing the corresponding software.
  • the hardware or software includes one or more units corresponding to the functions described above.
  • the specific structure of the network device can include a transceiver and a processor.
  • the processor and transceiver may perform the respective functions of the methods provided by any of the possible aspects of the third or third aspect above.
  • a terminal device has the function of implementing the terminal device in the above method design. These functions can be implemented in hardware or in software by executing the corresponding software.
  • the hardware or software includes one or more units corresponding to the functions described above.
  • the specific structure of the terminal device may include a processor and a transceiver.
  • the processor and transceiver may perform the respective functions of the methods provided by any one of the possible aspects of the fourth aspect or the fourth aspect described above.
  • a network device has the function of implementing the network device in the above method design. These functions can be implemented in hardware or in software by executing the corresponding software.
  • the hardware or software includes one or more units corresponding to the functions described above.
  • the specific structure of the network device may include a transceiver module and a processing module.
  • the processing module and the transceiver module may perform the respective functions of the methods provided by any of the possible aspects of the first aspect or the first aspect described above.
  • a terminal device has the function of implementing the terminal device in the above method design. These functions can be implemented in hardware or in software by executing the corresponding software.
  • the hardware or software includes one or more units corresponding to the functions described above.
  • the specific structure of the terminal device may include a processing module and a transceiver module.
  • the processing module and the transceiver module may perform the respective functions of the methods provided by any of the possible aspects of the second aspect or the second aspect described above.
  • a network device has the function of implementing the network device in the above method design. These functions can be implemented in hardware or in software by executing the corresponding software.
  • the hardware or software includes one or more units corresponding to the functions described above.
  • the specific structure of the network device may include a transceiver module and a processing module.
  • the processing module and the transceiver module may perform the respective functions of the methods provided by any of the possible aspects of the third aspect or the third aspect described above.
  • a terminal device has the function of implementing the terminal device in the above method design. These functions can be implemented in hardware or in software by executing the corresponding software.
  • the hardware or software includes one or more units corresponding to the functions described above.
  • the specific structure of the terminal device may include a processing module and a transceiver module.
  • the processing module and the transceiver module may perform the respective functions of the methods provided by any of the possible designs of the fourth aspect or the fourth aspect described above.
  • a communication device may be a network device in the above method design, or a chip disposed in the network device.
  • the communication device includes a memory for storing computer executable program code, and a processor coupled to the memory.
  • the program code stored in the memory includes instructions that, when executed by the processor, cause the communication device to perform the method performed by the network device in any of the possible aspects of the first aspect or the first aspect described above.
  • a communication device may be a terminal device in the above method design, or a chip disposed in the terminal device.
  • the communication device includes a memory for storing computer executable program code, and a processor coupled to the memory.
  • the program code stored in the memory includes instructions which, when executed by the processor, cause the communication device to perform the method performed by the terminal device in any of the possible aspects of the second aspect or the second aspect above.
  • a communication device may be a network device in the above method design, or a chip disposed in the network device.
  • the communication device includes a memory for storing computer executable program code, and a processor coupled to the memory.
  • the program code stored in the memory includes instructions which, when executed by the processor, cause the communication device to perform the method performed by the network device in any of the possible aspects of the third aspect or the third aspect above.
  • a communication device may be a terminal device in the above method design, or a chip disposed in the terminal device.
  • the communication device includes a memory for storing computer executable program code, and a processor coupled to the memory.
  • the program code stored in the memory includes instructions which, when executed by the processor, cause the communication device to perform the method performed by the terminal device in any of the possible designs of the fourth aspect or the fourth aspect above.
  • a communication system comprising a terminal device and a network device.
  • the network device is configured to determine a first scheduling configuration of the first physical downlink shared channel, where the first physical downlink shared channel is used to carry retransmission data of the first transport block, where the first scheduling configuration includes a first time domain transmission length of the first physical downlink shared channel, a first subcarrier spacing of the signal of the first physical downlink shared channel, and a first reference of a demodulation reference signal of the first physical downlink shared channel Determining, by the first scheduling configuration of the first physical downlink shared channel, a first processing time for the first physical downlink shared channel, and determining a terminal device according to the first processing time, according to at least one of a signal mapping manner Sending a transmission time of the first feedback signal, where the first feedback signal is used to carry a feedback signal for the first physical downlink shared channel, and send the first scheduling configuration information, a transmission time of the first feedback signal, The first physical downlink shared channel, where the terminal
  • the scheduling configuration information determines a first processing time, wherein the terminal device does not send a feedback signal for the first physical downlink shared channel within the first processing time after receiving the first physical downlink shared channel end time .
  • a communication system comprising a terminal device and a network device.
  • the network device is configured to send a first physical downlink shared channel, where the first physical downlink shared channel is used to carry retransmission data of the first transport block, according to the first scheduling of the first physical downlink shared channel.
  • the first scheduling configuration information includes: a first time domain transmission length of the first physical downlink channel, a first subcarrier spacing of a signal of the first physical downlink shared channel, and the At least one of a first reference signal mapping manner of a demodulation reference signal of the first physical downlink shared channel; the terminal device, configured to determine first scheduling configuration information of the first physical downlink shared channel, the first physical The downlink shared channel is used to carry the retransmission data of the first transport block, where the first scheduling configuration information includes the first of the first physical downlink channel.
  • the terminal device Receiving the at least one of a domain transmission length, a first subcarrier spacing of a signal of the first physical downlink shared channel, and a first reference signal mapping manner of a demodulation reference signal of the first physical downlink shared channel a first physical downlink shared channel, where the first processing time is determined according to the first scheduling configuration information, where the terminal device does not send in the first processing time after receiving the first physical downlink shared channel end time A feedback signal for the first physical downlink shared channel.
  • a computer storage medium stores instructions that, when run on a computer, cause the computer to perform any one of the first aspect or the first aspect of the first aspect The method described in the above.
  • a computer storage medium stores instructions that, when run on a computer, cause the computer to perform any of the possible aspects of the second aspect or the second aspect described above The method described in the above.
  • a computer storage medium stores instructions that, when run on a computer, cause the computer to perform any one of the third aspect or the third aspect described above The method described in the design.
  • a twenty-second aspect a computer storage medium is provided, wherein the computer readable storage medium stores instructions that, when run on a computer, cause the computer to perform any one of the fourth aspect or the fourth aspect described above The method described in the design.
  • a twenty-third aspect a computer program product comprising instructions, wherein the computer program product stores instructions that, when run on a computer, cause the computer to perform any of the first aspect or the first aspect described above The method described in the design.
  • a twenty-fourth aspect a computer program product comprising instructions, wherein the computer program product stores instructions that, when run on a computer, cause the computer to perform any of the second aspect or the second aspect described above The method described in the design.
  • a twenty-fifth aspect a computer program product comprising instructions, wherein the computer program product stores instructions that, when run on a computer, cause the computer to perform any one of the third aspect or the third aspect described above The method described in the design.
  • a twenty-sixth aspect a computer program product comprising instructions, wherein instructions stored in a computer program product, when executed on a computer, cause the computer to perform any one of the fourth aspect or the fourth aspect described above The method described in the design.
  • the network device can correctly schedule the time when the terminal device sends the feedback information, and avoids the scheduling failure and the retransmission caused by the scheduling error. For example, the network device prematurely schedules the time for the terminal device to send the feedback information. The terminal device has not completed the processing, and the terminal device does not feedback any information indicating that the reception is successful. The network device continues to schedule data retransmission, resulting in waste of spectrum resources. If the network device has been scheduling the terminal device to send feedback information prematurely. , which will cause the entire block transfer to fail. Therefore, the network device correctly estimates the first processing time, which helps to avoid transmission failure caused by premature scheduling of the terminal device to transmit feedback information, improve the success rate of the HARQ process, improve spectrum utilization, and reduce transmission delay.
  • Figure 1 is a schematic diagram of a HARQ process
  • FIG. 2 is a schematic diagram of a time when a network device schedules a terminal device to send feedback information according to a first processing time
  • 3A is a schematic diagram of transmitting initial transmission data and retransmission data in an embodiment of the present application
  • FIG. 3B is a schematic diagram of an application scenario according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 7A-7B are two schematic structural diagrams of a communication device according to an embodiment of the present application.
  • a terminal device including a device that provides voice and/or data connectivity to a user, for example, may include a handheld device with wireless connectivity, or a processing device connected to a wireless modem.
  • the terminal device can communicate with the core network via a radio access network (RAN) to exchange voice and/or data with the RAN.
  • the terminal device may include a user equipment (UE), a wireless terminal device, a mobile terminal device, a subscriber unit, a subscriber station, a mobile station, a mobile station, and a remote station.
  • Remote station access point (AP), remote terminal, access terminal, user terminal, user agent, or user Equipment (user device) and so on.
  • a mobile phone or "cellular" phone
  • a computer with a mobile terminal device a portable, pocket, handheld, computer built-in or in-vehicle mobile device, smart wearable device, and the like.
  • PCS personal communication service
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • smart watches smart helmets, smart glasses, smart bracelets, and other equipment.
  • restricted devices such as devices with lower power consumption, or devices with limited storage capacity, or devices with limited computing capabilities. Examples include information sensing devices such as bar code, radio frequency identification (RFID), sensors, global positioning system (GPS), and laser scanners.
  • RFID radio frequency identification
  • GPS global positioning system
  • a network device for example comprising a base station (e.g., an access point), may refer to a device in the access network that communicates over the air interface with the wireless terminal device over one or more cells.
  • the base station can be used to convert the received air frame to an Internet Protocol (IP) packet as a router between the terminal device and the rest of the access network, wherein the remainder of the access network can include an IP network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may include an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in an LTE system or an evolved LTE system (LTE-A), or may also include a fifth generation mobile communication technology. (fifth generation, 5G)
  • the next generation node B (gNB) in the new radio (NR) system is not limited in the embodiment of the present application.
  • HARQ is a technique that combines forward error correction coding (FEC) and automatic repeat request (ARQ).
  • the media access control (MAC) layer data packet of the transmitting end is called TB, and one TB is transmitted to the antenna port after being FEC encoded and modulated at the physical layer.
  • the physical layer of the receiving end After reaching the receiving end, the physical layer of the receiving end performs demodulation and decoding, and the decoding result is fed back to the transmitting end. If the receiving end can correctly receive the data packet, the receiving end sends an ACK to the transmitting end; if the receiving end cannot correctly receive the data packet, the receiving end sends a NACK to the transmitting end.
  • the sending end After receiving the ACK/NACK fed back by the receiving end, if the sending end determines that it is an ACK, it starts transmitting the next TB or ends the transmission, and if it is determined to be a NACK, retransmits the data packet, as shown in FIG. 2.
  • HARQ can adopt multiple implementation modes, one of which is called incremental redundancy (IR) HARQ, that is, the first transmission of information bits and a part of redundant bits, if the first transmission is not successfully decoded. Then, the coding rate of the channel can be reduced by retransmitting more redundant bits, thereby achieving a higher decoding success rate. If the retransmitted redundant bits are still unable to be correctly decoded, the retransmission is performed again. As the number of retransmissions increases, the redundant bits accumulate and the channel coding rate is continuously reduced, so that a better decoding effect can be obtained.
  • IR incremental redundancy
  • system and “network” in the embodiments of the present application may be used interchangeably.
  • Multiple means two or more.
  • a plurality can also be understood as “at least two” in the embodiment of the present application.
  • the character "/” unless otherwise specified, generally indicates that the contextual object is an "or" relationship.
  • the embodiments of the present application can be applied to a long term evolution (LTE) system, and can also be applied to a fifth generation mobile communication technology (5G) new radio (NR) system, and can also be applied to a next generation mobile communication system. Or other similar communication system.
  • LTE long term evolution
  • 5G fifth generation mobile communication technology
  • NR new radio
  • a traditional cellular wireless communication system includes a network device and a terminal device.
  • the transmission from the terminal device to the network device is called uplink transmission, and the transmission from the network device to the terminal device is called downlink transmission.
  • Which uplink signals are transmitted by the uplink time-frequency resources of the terminal equipment, and which downlink time-frequency resources receive the downlink signals, which are usually specified by the network device.
  • the network device sends an uplink scheduling signaling, and the uplink scheduling signaling notifies the terminal device at which time-frequency resources to send uplink data, and after receiving the uplink scheduling signaling, the terminal device generates an uplink according to the indication of the uplink scheduling signaling.
  • the data packet is sent with uplink data in the scheduled time-frequency resource.
  • the network device For the downlink, the network device sends downlink scheduling signaling, and the downlink scheduling signaling notifies the terminal device at which time-frequency resources receive downlink data, and after receiving the downlink scheduling signaling, the terminal device follows the indication of the downlink scheduling signaling.
  • the scheduled time-frequency resources receive downlink data.
  • a HARQ hybrid automatic feedback retransmission technique is generally adopted to implement data retransmission.
  • FIG. 1 it is a schematic diagram of HARQ.
  • a media access control (MAC) layer data packet of the transmitting end is called a TB, and a TB of a MAC layer is transmitted to the antenna port after being FEC encoded and modulated at the physical layer.
  • the physical layer of the receiving end After reaching the receiving end, the physical layer of the receiving end performs demodulation and decoding, and the receiving end feeds back the decoding result to the transmitting end. If the receiving end can correctly receive the data packet, the receiving end sends an ACK to the transmitting end; if the receiving end If the data packet cannot be received correctly, the receiving end sends a NACK to the transmitting end. After receiving the ACK/NACK fed back by the receiving end, the transmitting end retransmits the data packet if it is a NACK, and starts transmitting the next data packet if it is an ACK, or ends the data transmission process.
  • MAC media access control
  • HARQ can adopt multiple implementation modes, one of which is called incremental redundancy HARQ. According to the previous introduction, better decoding effect can be obtained by using incremental redundancy HARQ.
  • the channel carrying the downlink TB is referred to as a PDSCH
  • the channel carrying the uplink feedback information ACK/NACK is a physical uplink control channel (PUCCH).
  • the terminal device needs to process the downlink signal, which is called the downlink processing delay, or the downlink processing time.
  • the downlink processing time is that the terminal device receives the PDSCH that carries one TB and ends up to the terminal device.
  • the time of the feedback information of the TB scheduled data is in an orthogonal frequency division multiplexing (OFDM) symbol.
  • OFDM orthogonal frequency division multiplexing
  • the downlink processing time is defined as a minimum duration between when the terminal device receives the end time of one PDSCH, and when the terminal device can start transmitting the feedback information for the TB carried on the PDSCH, and the downlink processing time can be represented by N1.
  • the network device can consider that the feedback information from the terminal device is not received during the time when the N1 symbols after the start of the PDSCH end time is added and the timing advance (TA) is added.
  • the feedback information here refers to ACK/NACK in HARQ.
  • TA is generally taken as twice the transmission delay.
  • An exemplary description of the downlink processing time is given as shown in FIG. 2.
  • the feedback signal ACK for the TB carried on the PDSCH is transmitted.
  • the NACK is scheduled by the network device. If the network device does not know the downlink processing time of the terminal device, the network device cannot correctly schedule the time for the terminal device to send the ACK/NACK.
  • a mapping relationship between the typical PDSCH scheduling configuration and the downlink processing time is determined. The mapping relationship may be previously agreed by the network device and the terminal device, or may be the terminal device as the terminal device. The capability information is reported to the network device.
  • the mapping table is shown in Table 1 below, where ⁇ DL is used to indicate different subcarrier spacing, and ⁇ DL is 0, 1, 2, and 3, corresponding to different subcarrier spacings.
  • the network device After determining the scheduling configuration of the PDSCH, the network device obtains the downlink processing time of the terminal device according to the mapping relationship table, and configures the transmission time of the ACK/NACK of the feedback information of the TB for the PDSCH carried by the terminal device according to the downlink processing time.
  • the mapping relationship between the PDSCH scheduling configuration and the downlink processing time determined by the prior art is based on the time domain transmission length of the scheduled PDSCH, the subcarrier spacing of the scheduled PDSCH, and the reference signal on the scheduled PDSCH.
  • the mapping mode is determined by three conditions, without considering whether the PDSCH is scheduled to transmit data or retransmit data.
  • the obtained downlink processing time is relatively accurate, and the network device can schedule the downlink of the ACK/NACK transmission of the terminal device after receiving the downlink PDSCH end time.
  • the terminal device has sufficient processing time so that the terminal device can complete the reception of the data carried on the scheduled PDSCH before the scheduled ACK/NACK transmission time, and send the scheduled ACK/NACK.
  • the scheduling feedback signal transmission time is (Y+N1+1) symbol.
  • the terminal device receives the data carried on the four OFDM symbols, it is actually combined with the data previously carried in the 14 OFDM symbols, and the processing time for decoding the 14 symbols is greater than the decoding 4 The processing time of the data of the symbols. Therefore, the N1 calculated according to the scheduling configuration of the four symbols is too small, so that the terminal device cannot complete the processing in the corresponding N1 OFDM symbols, so that the terminal device cannot send the feedback signal, or the terminal device can only send the NACK signal. And the base station will reschedule a retransmission. By analogy, the base station unnecessary scheduling transmission reduces the spectral efficiency of the system.
  • the technical solution of the embodiment of the present application is provided, so that the network device can reserve sufficient processing time for the terminal device when scheduling the retransmission data, so that the terminal device can complete the downlink processing before the scheduled feedback information transmission time. Therefore, the scheduling failure is prevented due to incorrect feedback information transmission time setting.
  • FIG. 3B is a schematic diagram of an application scenario according to an embodiment of the present application.
  • FIG. 3B includes a network device and a terminal device, where the network device may send a PDSCH to the terminal device, and after receiving the PDSCH, the terminal device may send an ACK/NACK for the received PDSCH to the network device.
  • the network device in Figure 3B is, for example, an access network (AN) device, such as a base station.
  • the core network device is not shown in FIG. 3B because the solution of the embodiment of the present application mainly relates to the access network device and the terminal device.
  • the access network device is, for example, an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in the LTE system or the LTE-A system, or may also include a gNB in the 5G NR system.
  • an embodiment of the present application provides a wireless communication method.
  • the application is applied to the application scenario shown in FIG. 3B as an example. The flow of the method is described below.
  • the network device determines a first scheduling configuration of the first physical downlink shared channel.
  • the first physical downlink shared channel is configured to carry retransmission data of the first transport block, where the first scheduling configuration includes a first time domain transmission length of the first physical downlink shared channel, and the first physical downlink At least one of a first subcarrier spacing of a signal of the shared channel and a first reference signal mapping manner of a demodulation reference signal of the first physical downlink shared channel;
  • the network device determines, according to the first scheduling configuration of the first physical downlink shared channel, a first processing time for the first physical downlink shared channel.
  • the network device determines, according to the first processing time, a transmission time of the first feedback signal sent by the terminal device, where the first feedback signal is used to carry a feedback signal for the first physical downlink shared channel.
  • the network device sends the first scheduling configuration, the transmission time of the first feedback signal, and the first physical downlink shared channel, where the terminal device receives the first scheduling configuration information and the information from the network device.
  • a first physical downlink shared channel where the first physical downlink shared channel is used to carry retransmission data of the first transport block, and the first feedback signal is used to carry the a feedback signal of the first physical downlink shared channel, where the information used to indicate the scheduling configuration is called scheduling configuration information, and the present invention does not distinguish between the two;
  • the terminal device determines, according to the first scheduling configuration information, a first processing time, where the terminal device does not send the first processing time after receiving the first physical downlink shared channel end time.
  • a feedback signal of the first physical downlink shared channel that is, a time when the terminal device sends a feedback signal for the first physical downlink shared channel, not earlier than the end of the terminal device receiving the first physical downlink shared channel
  • the feedback signal may be carried on the physical uplink control channel PUCCH or on the physical uplink shared channel PUSCH.
  • the physical downlink shared channel is, for example, a PDSCH, a physical uplink control channel PUCCH, and a physical uplink shared channel PUSCH, but is not limited thereto.
  • the network device first determines to use the first physical downlink shared channel to carry the retransmission data of the first transport block, where the first transport block corresponds to the initial transmission data and the retransmission data, and the file is used to carry the retransmission data of the first transport block.
  • the physical downlink shared channel is referred to as a first physical downlink shared channel. If it is determined that the first physical downlink shared channel is used to carry data, the network device needs to determine a scheduling configuration of the first physical downlink shared channel, and the scheduling configuration of the first physical downlink shared channel is referred to as a first scheduling configuration.
  • the first scheduling configuration may include a time domain transmission length of the first physical downlink shared channel, a subcarrier spacing of the signal of the first physical downlink shared channel, and a mapping manner of the demodulation reference signal of the first physical downlink shared channel.
  • the first scheduling configuration information may also include other scheduling-related information, which is not limited in the embodiment of the present application.
  • the time domain transmission length of the first physical downlink shared channel is referred to as a first time domain transmission length
  • the subcarrier spacing of the signal of the first physical downlink shared channel is referred to as a first subcarrier spacing
  • the first physical downlink is performed.
  • the mapping manner of the demodulation reference signal of the shared channel is referred to as a first reference signal mapping manner.
  • the demodulation reference signal such as a demodulation reference signal (DM-RS), or possibly other demodulation reference signals.
  • the time domain transmission length can be counted in units of OFDM symbols or counted in slot length.
  • the subcarrier spacing may be 15 kHz, 30 kHz, 60 kHz, 120 kHz, 240 kHz, and the like.
  • the mapping mode of the demodulation reference signal may be only the pre-demodulation reference signal, or the pre-demodulation reference signal, or other demodulation reference signals, or multiple types. The implementation of the present application is not limited.
  • the network device may determine, according to the first scheduling configuration information, a processing time for the first physical downlink shared channel, where the processing time of the first physical downlink shared channel is referred to as a first processing time, where A processing time is used to determine a time when the terminal device transmits the first feedback signal, where the first feedback signal is used to carry a feedback signal for the first physical downlink shared channel, that is, after the terminal device receives the first physical downlink shared channel, Whether the acknowledgment signal of the first transport block can be successfully decoded.
  • the first feedback signal is a feedback signal of the first physical downlink shared channel sent by the terminal device, for example, ACK/NACK, and the network device can correctly configure the transmission time of the first feedback signal according to the first processing time. Transmitting time of the first feedback signal, after the first processing time after the terminal device receives the end of the PDSCH, avoiding the first feedback signal of the terminal device being configured by the erroneous configuration of the transmission time of the first feedback signal When the transmission time comes, the downlink processing is not completed and the scheduling fails.
  • the terminal device may determine the processing time for the first physical downlink shared channel according to the first scheduling configuration information, that is, determine the first processing time, and determine, by the network device and the terminal device, the first processing according to the first scheduling configuration information.
  • the time can be the same, thus ensuring the consistency of the results determined by the network device and the terminal device.
  • the first feedback signal is used to carry the feedback signal for the first physical downlink shared channel, that is, whether the terminal device can successfully decode the acknowledgement signal of the first transport block after receiving the first physical downlink shared channel.
  • the feedback signal described herein is ACK/NACK
  • the first feedback signal is a signal for carrying ACK/NACK. In the following text, the first feedback signal is used for introduction.
  • the first processing time is the downlink processing time of the terminal device, and the start time of the first processing time is the end time of the terminal device receiving the first physical downlink shared channel, and the end time of the first processing time may be that the terminal device can
  • the earliest time at which the first feedback signal is started to be transmitted that is, the shortest time from when the terminal device receives the end time of the first physical downlink shared channel to when the terminal device can start transmitting the first feedback signal for the first physical downlink shared channel. Therefore, the time at which the terminal device can send the first feedback signal can be determined according to the first processing time, and the network device can configure the transmission time of the first feedback signal sent by the terminal device according to the first processing time, and then consider the terminal device and the network device.
  • the delay between the network devices can determine when the network device receives the first feedback signal.
  • the network device may send the information about the time when the determined terminal device sends the first feedback signal to the terminal device, where the time for transmitting the first feedback signal may also be referred to as the transmission time for transmitting the first feedback signal, where the time may be Referring to the moment, the terminal device may actually send the first feedback signal when the transmission time of the first feedback signal is sent. Then, the terminal device receives the information of the transmission time of the first feedback signal from the terminal device of the network device, and then determines when the first feedback signal can be sent. The start time of the transmission time of the first feedback signal sent by the terminal device should be after the end of the first processing time.
  • the first feedback signal can be sent.
  • the terminal device does not send the feedback signal for the first physical downlink shared channel (ie, the first feedback signal) within the first processing time after receiving the first physical downlink shared channel end time. ).
  • the first processing time after the network device sends the first physical downlink shared channel end time, after adding the TA does not receive the first feedback signal sent by the terminal device.
  • the TA is used to characterize the transmission delay of the wireless signal between the network device and the terminal device. Generally, the TA is twice the transmission time. The specific value of the TA can also be sent by the network device to the terminal device.
  • the terminal device can "send" the feedback signal for the first transport block carried on the PDSCH, which means that the terminal device does not necessarily send a feedback signal, for example, the terminal device does not necessarily send the first feedback signal.
  • the network device sends the information about the transmission time of the first feedback signal sent by the terminal device to the terminal device, and after receiving the information about the transmission time of the first feedback signal sent by the network device, the terminal device may determine that the sending is first. Whether the start time of the transmission time of the feedback signal is after the end of the first processing time, wherein the description of the first processing time after the end of the first processing time includes coincidence with the end time of the first processing time, and also includes the first processing time. After the end of the moment.
  • the terminal device determines that the start time of the transmission time of the first feedback signal is after the end of the first processing time, determining that the first feedback signal transmission time determined by the network device is correct, the terminal device indicates at the network device
  • the first feedback signal may be sent to the network device by using the physical uplink control channel or the physical uplink shared data channel, and the network device may pass the physical uplink control at the determined time of receiving the first feedback signal.
  • the channel or the physical uplink shared data channel receives the first feedback signal; and if the terminal device determines that the transmission time of the first feedback signal is not after the end of the first processing time, for example, the start time of the transmission time of the first feedback signal is sent.
  • the terminal device may determine that the transmission time of the first feedback signal determined by the network device is wrong, and the transmission time that the terminal device sends the first feedback signal indicated by the network device may not be to the network.
  • Device sends first Feeding the signal the network device may not know that the terminal device does not transmit the first feedback signal, so the physical uplink control channel is still monitored when the determined time of receiving the first feedback signal arrives, but the network device is on the physical uplink control channel. The first feedback signal is not received.
  • the network device can determine the first processing time according to the first scheduling configuration information, so that the ACK/NACK time of the terminal device can be correctly configured according to the first processing time, thereby avoiding configuration
  • the time when the terminal device sends the ACK/NACK too early causes the terminal device to fail to feed back the ACK/NACK, which further leads to waste of resources caused by the network device retransmitting the signal.
  • the determined N1 may be too small, so that the determination according to N1 is performed.
  • the first feedback signal transmission time cannot meet the processing delay requirement of the terminal device for the combined decoding of the retransmitted data and the initial transmission data, so that the terminal device cannot send the feedback signal, or the terminal device can only send the NACK signal, and the base station will Reschedule a retransmission again.
  • the base station unnecessary scheduling transmission reduces the spectral efficiency of the system.
  • the terminal device and/or the network device determine the first processing time according to the first scheduling configuration, and other manners may be adopted, which are separately introduced below.
  • the manner in which the terminal device and/or the network device determines the first processing time according to the first scheduling configuration including but not limited to the following, in the following description, the network device determines the first processing time according to the first scheduling configuration.
  • this document is an alternative example:
  • Mode A If the retransmission data of the first transport block is carried on the first physical downlink shared channel, the network device determines the first processing time according to the first scheduling configuration information and a predefined rule.
  • the predefined rules can be various. The following describes how the network device determines the first processing time according to the first scheduling configuration information and the predefined rules under different predefined rules. It can be understood that, in the mode A, Includes a variety of different implementations.
  • the implementation mode A1 The network device acquires the first mapping relationship between the scheduling configuration information and the processing time, and the network device determines the first processing time according to the first scheduling configuration information and the first mapping relationship.
  • mapping relationship between the scheduling configuration information and the processing time is referred to as a first mapping relationship.
  • processing time refers to the downlink processing time of the terminal device.
  • mapping relationships between scheduling configuration information and processing time There are many kinds of mapping relationships between scheduling configuration information and processing time.
  • mapping relationship can refer to Table 2:
  • ⁇ DL is a parameter related to the subcarrier spacing of the signal (ie, data) carried on the PDSCH. For example, if the subcarrier spacing of the signal carried on the PDSCH is 15 kHz, the value of ⁇ DL is 0, or is carried on the PDSCH. The subcarrier spacing of the signal is 30 kHz, then the value of ⁇ DL is 1, and so on. For each subcarrier spacing of the signal carried on the PDSCH, the value of ⁇ DL is increased by 1, so that the bearer is based on the PDSCH. The subcarrier spacing of the signal determines the value of ⁇ DL .
  • mapping relationship can refer to Table 3:
  • Table 2 The difference between Table 2 and Table 3 is that the capabilities of the applicable terminal devices are different, Table 2 is applicable to terminal devices having capability 1, and Table 3 is applicable to terminal devices having capability 2.
  • the terminal device may send information indicating the capability of the terminal device to the network device in advance, and after the network device receives the information from the terminal device for indicating the capability of the terminal device, the capability of the terminal device may be determined, so that the network device It is possible to instruct the terminal device which table in Table 2 and Table 3 is specifically used.
  • the terminal device may send information indicating the capability of the terminal device to the network device in advance, and after the network device receives the information from the terminal device for indicating the capability of the terminal device, the capability of the terminal device may be determined, so that the network
  • the device and the terminal device can determine which table in Tables 2 and 3 is specifically used according to the provisions of the protocol, and the network device is not required to instruct the terminal device to use which table, thereby reducing the interaction between the devices.
  • the premise of Table 2 and Table 3 is that the time scheduling unit of the network device is 1 slot, for example, 7 OFDM symbols, except for the case where the time scheduling unit is not the length of one slot, Another mapping relationship is provided.
  • the mapping relationship may refer to Table 4, where the mapping relationship may include at least one item in Table 4, so that the mapping provided by the embodiment of the present application can also be performed when the time scheduling unit is not the length of one time slot. Relationship to determine the first processing time.
  • Table 4 shows the downlink processing time when the time scheduling unit is 2 OFDM symbols, 4 OFDM symbols, and 7 OFDM symbols, respectively.
  • Table 4 may not distinguish the capabilities of the terminal device, that is, the terminal device of any capability may be applicable to Table 4, or Table 4 may also distinguish the capabilities of the terminal device, for example, the terminal device of capability 1 is applicable to the terminal of Table 4, or the terminal of capability 2 The device is applicable to the table 4, and the embodiment of the present application is not limited.
  • the first mapping relationship may include at least one of Table 2, Table 3, and Table 4.
  • Table 2, Table 3, and Table 4 are only examples.
  • the first mapping relationship is not limited in the embodiment of the present application, as long as the mapping relationship between the scheduling configuration and the processing time is within the protection scope of the embodiment of the present application.
  • Table 2, Table 3 and Table 4 are divided into three tables.
  • at least two tables in Table 2, Table 3 and Table 4 can be combined into one table, for example Tables 2 and 3 can be combined into one table, or Tables 3 and 4 can be combined into one table, or Tables 2 and 4 can be combined into one table, or Tables 2, 3, and 4 can be combined into one table.
  • a first scheduling configuration including a first time domain transmission length of the first physical downlink shared channel, a first subcarrier spacing of the signal of the first physical downlink shared channel, and a first reference of the demodulation reference signal of the first physical downlink shared channel
  • At least one of the signal mapping modes, and the first mapping relationship such as Table 2, Table 3, or Table 4, includes the time domain length of the physical downlink shared channel and the demodulation reference signal of the physical downlink control channel.
  • the processing time corresponding to the first configuration information in the first mapping relationship may be determined by querying the first mapping relationship, and the network device may determine that the processing time is the first processing time.
  • the network device can be seen by querying Table 2, the first processing time is 13 OFDM symbols.
  • the first processing time can be directly determined according to the first configuration information and the first mapping relationship, which is relatively simple.
  • Embodiment A2 If the retransmission data of the first transport block is carried on the first PDSCH, the network device determines a second mapping relationship between the subcarrier spacing and the processing time, and the network device according to the first subcarrier spacing and the second mapping relationship, Determine the first processing time.
  • mapping relationship between the subcarrier spacing and the processing time is referred to as a second mapping relationship.
  • a second mapping relationship is, for example, a processing time corresponding to a sub-carrier spacing in the second mapping relationship, which is a processing in which all the processing times corresponding to the sub-carrier spacing are the largest in the first mapping relationship. time.
  • Table 2 Table 3, and Table 4, all the processing corresponding to the subcarrier spacing is obtained.
  • the time includes [8, 13, 2.5-4, 12, 5, 6, 3, 7] OFDM symbols, where the value of 13 is the largest, and in the second mapping relationship, the processing time corresponding to the 15 kHz subcarrier spacing It is 13 OFDM symbols.
  • the first scheduling configuration information indicates that the subcarrier spacing of the signal carried by the first physical downlink shared channel is 15 kHz, and the retransmission data of the first transport block is carried on the first PDSCH, and the network device queries the second mapping relationship. It can be determined that the first processing time is 13 OFDM symbols.
  • the second mapping relationship is not limited.
  • the embodiment of the present application does not limit the mapping relationship between the subcarrier spacing and the processing time.
  • the implementation manner A2 is relatively simple, and the processing time with the largest value among all processing times corresponding to the subcarrier spacing can be used as the processing time of the subcarrier spacing, and the determined first processing time is too short to ensure that the situation is ensured.
  • the terminal device can complete the decoding of the signal carried by the first physical downlink shared channel in the first processing time, so that the first feedback signal can be normally sent to the network device.
  • Embodiment A3 If the retransmission data of the first transport block is carried on the first PDSCH, the network device determines a default processing time, and the network device determines that the first processing time is a default processing time.
  • the default processing time can be predefined by the protocol or it can also be defined by the network device. For example, the same default processing time can be defined for different subcarrier spacings, or different default processing times can be defined for different subcarrier spacings, so that the defined default processing time is more realistic.
  • one way to define the default processing time is to determine the maximum processing time in at least one of Tables 2, 3, and 4. And define this maximum value as the default processing time.
  • one way to define a default processing time is to determine a subcarrier spacing corresponding to at least one of the tables in Table 2, Table 3, and Table 4.
  • the maximum value of all processing times, and the maximum value is defined as the default processing time corresponding to the subcarrier spacing.
  • Selecting the maximum value as the default processing time is to reduce the situation that the determined first processing time is too short, and ensure that the terminal device can complete the signal carried by the first physical downlink shared channel in the first processing time.
  • the decoding and the like work, so that the first feedback signal can be normally sent to the network device.
  • the default processing time may not be defined according to the first mapping relationship as above, for example, the default processing time may be defined according to experience or other related factors.
  • the network device acquires a first mapping relationship between the scheduling configuration and the processing time, and the network device determines according to the first scheduling configuration information and the first mapping manner.
  • the third processing time the network device determines that the first processing time is the sum of the third processing time and the first margin.
  • the first mapping relationship may refer to the introduction of implementation manner A1.
  • the third processing time determined by the network device is the processing time determined according to the first scheduling configuration information and the first mapping relationship, and the specific determining manner may also refer to the introduction of the implementation manner A1.
  • the network device may add a first margin to the third processing time, and the obtained value is determined as the first processing time.
  • the first margin can be understood as additional downlink processing time, which can be set by the network device, for example, set by the network according to historical experience and sent to the terminal device, or can be specified by the protocol, for example, the protocol specifies the first
  • the definition of the quantity, one of the definition manners, for example, the first margin may be determined according to at least one of a subcarrier spacing, an initial transmission scheduling duration, and a retransmission scheduling duration, for example, the subcarrier detection is 15 kHz, and the first margin is The value is 4 OFDM symbols; the subcarrier detection is 30 kHz, the first margin is 8 OFDM symbols; the subcarrier detection is 60 kHz, and the first margin is 16 OFDM symbols.
  • the same first margin may be defined for different subcarrier spacings, or different first margins may be defined for different subcarrier spacings, so that the first margin defined is more in line with the actual situation.
  • the implementation manner A5 the network device determines the fifth processing time and the sixth processing time, and determines the first processing time according to the fifth processing time and the sixth processing time, for example, determining that the first processing time is the fifth processing time and the sixth processing time.
  • the sum is subtracted from the PDCCH transmission time.
  • the fifth processing time is the processing time for the physical downlink control channel
  • the sixth processing time is the processing time for the physical downlink shared channel.
  • the physical downlink control channel is, for example, a PDCCH
  • the physical downlink shared channel is, for example, a PDSCH.
  • the fifth processing time may be that the terminal device starts receiving the last symbol of the physical downlink control channel, and the terminal device completes the analysis of the physical downlink control channel.
  • the sixth processing time may be that the terminal device starts to parse the physical downlink control channel, and the terminal device starts to receive the physical downlink shared channel.
  • the fifth processing time and the sixth processing time are both predetermined by the protocol.
  • the subcarrier spacing may be omitted.
  • other factors that is, regardless of the subcarrier spacing of the signal carried by the first physical downlink shared channel or the second physical downlink shared channel, if the downlink processing time is to be calculated, the same fifth processing time and the same are used.
  • Six processing time when the fifth processing time and/or the sixth processing time are set, factors such as the subcarrier spacing may also be considered. For example, different fifth processing time and/or sixth processing time may be set for different subcarrier spacings.
  • the subcarrier spacing has a mapping relationship with the fifth processing time and/or the sixth processing time, and for the corresponding first physical downlink shared channel or for the second physical downlink shared channel, the sub The carrier interval is used to determine the fifth processing time and/or the sixth processing time to more closely match the actual situation. For example, when the fifth processing time and the sixth processing time are set to consider factors such as the subcarrier spacing, a fifth processing time is when the subcarrier spacing is 15 kHz, and the fifth processing time is 1 OFDM symbol.
  • This method is relatively simple, no need to define too many parameters, only need to calculate according to the known fifth processing time and the sixth processing time.
  • Embodiment A6 The network device determines a seventh processing time and an eighth processing time, and determines that the first processing time is a sum of the seventh processing time and the eighth processing time.
  • the seventh processing time is a time unrelated to the scheduling process and the DM-RS when the downlink data is processed
  • the eighth processing time is a time related to the scheduling process, the DM-RS, and the like when processing the downlink data.
  • the eighth processing time can be calculated, for example, by the following formula:
  • N1_scalable N1_condition*PDSCH length*BW/SCS Formula (1)
  • the N1_scalable represents the eighth processing time, and the N1_condition may take different values according to different terminal equipment capabilities or different DM-RS patterns.
  • the PDSCH length represents the time domain transmission length of the physical downlink shared channel
  • the SCS represents the physical downlink.
  • the subcarrier spacing of the signal carried by the shared channel, and the BW bandwidth is the frequency domain length of the physical downlink shared channel. It can be understood that the eighth processing time is proportional to the time domain transmission length of the physical downlink shared channel, and inversely proportional to the subcarrier spacing of the signal carried by the physical downlink shared channel.
  • N1_condition may be smaller, for example, 1, and if the mode of the DM-RS is an additional PDSCH DM-RS configuration, then N1_condition The value is larger than that of no DM-RS, for example, 4.
  • the seventh processing time can be specified by the agreement.
  • factors such as the DM-RS mode may be omitted, that is, regardless of the DM-RS mode for the first physical downlink shared channel or the second physical downlink shared channel. If the downlink processing time is to be calculated, the same seventh processing time is used.
  • factors such as the DM-RS mode may also be considered. For example, different seventh processing times may be set for different DM-RS modes, which may be understood as DM-RS mode and seventh processing time.
  • the seventh processing time may be determined according to the corresponding DM-RS mode for the corresponding first physical downlink shared channel or for the second physical downlink shared channel, so as to be more in line with the actual situation. If different seventh processing times are set for different DM-RS modes, if the mode of the DM-RS is no additional PDSCH DM-RS configuration, the value of the seventh processing time may be smaller, and if DM- The mode of the RS is an additional PDSCH DM-RS configuration, and the value of the seventh processing time can be larger.
  • the first processing time is determined according to the first scheduling configuration information and the predefined rules.
  • the first processing time can be determined together with the initial transmission data of the first transport block.
  • the first processing time is determined according to the first scheduling configuration information and the second scheduling configuration information.
  • the second scheduling configuration information is herein the scheduling configuration information of the first transmission data of the first transport block, or the second scheduling configuration information is the second physical downlink shared channel of the first transmission data of the first transport block.
  • the physical downlink shared channel carrying the initial transmission data of the first transport block is referred to as a second physical downlink shared channel.
  • the network device may obtain the second scheduling configuration information of the first transport block, and determine the first processing time according to the first scheduling configuration information and the second scheduling configuration information.
  • the second scheduling configuration information includes a second time domain transmission length of the second physical downlink shared channel, a second subcarrier spacing of the signal of the second physical downlink shared channel, and a demodulation reference signal of the second physical downlink shared channel.
  • the at least one of the second reference signal mapping manners is referred to as the second time domain transmission length of the second physical downlink channel, and the subcarrier spacing of the signal carried by the second physical downlink shared channel is called The second subcarrier spacing and the mapping manner of the demodulation reference signal of the second physical downlink shared channel are referred to as a second reference signal mapping manner.
  • the network device first determines that the first physical downlink shared channel is used to carry the first transmission data of the first transport block, and then the network device needs to determine the scheduling configuration information of the second physical downlink shared channel, that is, the second scheduling configuration information.
  • the initial transmission data of the first transport block is sent before the retransmission data of the first transport block, or it is understood that the process of the network device sending the second physical downlink shared channel occurs before S41, so the network device obtains the first
  • the network device may determine the first processing time according to the first scheduling configuration information and the second scheduling configuration information.
  • mode B may further include mode B1 and mode B2.
  • the mode B1 the first mapping relationship between the scheduling configuration information and the processing time is obtained by the network device, and the third processing time may be determined according to the first scheduling configuration information and the first mapping relationship, and the second scheduling configuration information and the first mapping relationship may be determined according to the second scheduling configuration information.
  • the network device determines the first processing time according to the third processing time and the second processing time.
  • the first mapping mode can refer to the introduction in implementation manner A1.
  • the processing time determined according to the first scheduling configuration information and the first mapping relationship is referred to as a third processing time, and the processing time determined according to the second scheduling configuration information and the first mapping relationship is referred to as a second processing time.
  • the first processing time is determined according to the third processing time and the second processing time, and may be different, or it may be understood that a plurality of different implementation manners are further included in the mode B1, which are respectively introduced below.
  • Embodiment B11 The network device determines that the first processing time is a sum of the third processing time and the second processing time.
  • the network device directly determines the sum of the second processing time and the third processing time as the first processing time, which is relatively simple.
  • Embodiment B12 The network device determines that the first processing time is a maximum value between the third processing time and the second processing time.
  • the network device compares the sizes of the second processing time and the third processing time, and determines that the value is larger as the first processing time.
  • the first processing time is determined as the first processing time or the larger of the second processing time and the third processing time is determined as the first processing time, both are for reducing the number
  • a short processing time makes it impossible for the terminal device to complete the decoding, and the terminal device can complete the decoding of the signal carried by the first physical downlink shared channel in the first processing time, thereby being able to be normal.
  • Embodiment B13 The network device determines that the first processing time is the second processing time.
  • the network device directly determines the processing time (ie, the second processing time) determined according to the second scheduling configuration information and the first mapping relationship as the first processing time.
  • the implementation B13 does not need to calculate the sum of the second processing time and the third processing time, and does not need to compare the size of the second processing time and the third processing time, which is relatively simple and straightforward.
  • the mode B2 the network device determines the first processing time according to the first scheduling configuration information, the second scheduling configuration information, the first time domain transmission length, and the second time domain transmission length.
  • the first time domain length is a time domain length of the first physical downlink shared channel indicated by the first scheduling configuration information
  • the second time domain length is a time domain of the second physical downlink shared channel indicated by the second scheduling configuration information. length.
  • the network device may determine a size relationship between a difference between the first time domain transmission length and the second time domain transmission length and the first threshold, and according to the result determined by the network device, the mode B2 includes multiple Different implementations are described below.
  • the network device determines that the difference between the first time domain transmission length and the second time domain transmission length is less than or equal to the first threshold, the network device determines the third processing time according to the first scheduling configuration information and the first mapping relationship. And determining that the first processing time is the third processing time.
  • the network device may use the implementation manner A1 to determine the first processing time.
  • the at least one length interval may be preset. If the first time domain transmission length and the second time domain transmission length are both located in one of the preset length intervals, the first time domain transmission length and the second time domain transmission length are considered. The difference is less than or equal to the first threshold.
  • first time domain transmission length and the second time domain transmission length are both located in one of the length intervals, the difference between the first time domain transmission length and the second time domain transmission length is considered to be less than or equal to the first threshold.
  • the first time domain transmission length is 1 OFDM symbol
  • the second time domain transmission length is 2 OFDM symbols
  • the first time domain transmission length and the second time domain transmission length are both located in the length interval [1, 2].
  • the network device may determine that the difference between the first time domain transmission length and the second time domain transmission length is less than or equal to the first threshold.
  • the first time domain transmission length is 1 OFDM symbol
  • the second time domain transmission length is 4 OFDM symbols
  • the first time domain transmission length is located in the length interval [1, 2]
  • the second time domain is The transmission length is in the length interval [3, 4], that is, the first time domain transmission length and the second time domain transmission length are not located in one length interval
  • the network device can determine the first time domain transmission length and the second time domain.
  • the difference in transmission length is greater than the first threshold.
  • the embodiment of the present application may provide that, for the time domain transmission length in the same length interval, if the downlink processing time of the terminal device is determined according to the first mapping relationship, the time domain transmission length used for determining the downlink processing time of the terminal device is determined. Both are the maximum time domain transmission lengths for this length interval.
  • the first time domain transmission length is 3 OFDM symbols
  • the second time domain transmission length is 4 OFDM symbols
  • the first time domain transmission length and the second time domain transmission length are both in the same length interval
  • the length interval is [3, 4]
  • the processing time is determined according to the first scheduling configuration parameter and the first mapping relationship
  • the first time domain transmission length is processed by 4 OFDM symbols
  • the second scheduling configuration parameter is determined according to the second mapping relationship.
  • the second time domain transmission length is also 4 OFDM symbols. It can be seen that if the first time domain transmission length and the second time domain transmission length are within the same length interval, the determined processing time may be the same. Therefore, the implementation B21 may be: the network device determines that the difference between the first time domain transmission length and the second time domain transmission length is less than or equal to the first threshold, the network device may be configured according to the first scheduling configuration information and the first mapping relationship.
  • Determining the third processing time, and determining that the first processing time is the third processing time, or the network device may determine the second processing time according to the second scheduling configuration information and the first mapping relationship, and determine that the first processing time is The second processing time, because the third processing time and the second processing time may be the same, or may not be too different.
  • the network device determines that the difference between the first time domain transmission length and the second time domain transmission length is greater than the first threshold, and the processing manner of the network device may include at least one of the following processing modes:
  • the network device determines a default processing time, and determines that the first processing time is a default processing time
  • the network device determines a second mapping relationship between the subcarrier spacing and the processing time, and the network device determines the first processing time according to the first subcarrier spacing and the second mapping relationship;
  • the network device obtains a first mapping relationship between the scheduling configuration information and the processing time, determines a third processing time according to the first scheduling configuration information and the first mapping manner, and the network device determines that the first processing time is the third processing time and the first remaining amount. Sum.
  • the network device may determine, by using the foregoing implementation manner A2, implementation manner A3, or implementation manner A4. A processing time.
  • the manner in which the plurality of terminal devices and the network device determine the first processing time according to the first scheduling configuration information is as described above.
  • different manners may be selected according to different situations, for example, the network device may indicate which manner is used. Or, the corresponding manner may be determined according to the provisions of the protocol, which is not limited in the embodiment of the present application.
  • the processing time of the network device and the terminal device may be: the network device acquires the scheduling configuration information and The first mapping relationship of the processing time is determined according to the second scheduling configuration information and the first mapping manner, and the network device determines that the second processing time is the fourth processing time. That is, for the initial transmission data, the network device and the terminal device may directly determine the downlink processing time according to the scheduling configuration information of the physical downlink shared channel carrying the initial transmission data and the first mapping relationship.
  • the technical solution provided by the embodiment of the present application can identify whether the data is initially transmitted or the data is retransmitted, so that the downlink processing time of the terminal device can be determined in different manners, so that the determined downlink processing time is more accurate.
  • the first scheduling configuration information may be utilized when determining the first processing time. Considering that if the first scheduling configuration is restricted in advance so that the first scheduling configuration is close to the second scheduling configuration, the process of determining the first processing time can be further simplified.
  • a specific implementation manner of the step S41 in the embodiment shown in this application is that the network device can obtain the second scheduling configuration information of the first transport block, and determine the first according to the second scheduling configuration information.
  • the configuration information is scheduled such that the first scheduling configuration information is close to or the same as the second scheduling configuration information.
  • the first scheduling configuration information is determined according to the second scheduling configuration information, including but not limited to the following at least one manner:
  • the network device determines that the difference between the first time domain transmission length and the second time domain transmission length is less than the first threshold, that is, the difference between the first time domain transmission length and the second time domain transmission length is configured. The value is less than the first threshold.
  • some length intervals may be set in advance.
  • several length intervals such as [1, 2], [3, 4], [5, 7], and [8, 14] may be preset, and the units are all OFDM symbols.
  • the first time domain transmission length and the second time domain transmission length are located in the same length interval. For example, if the second time domain transmission length is 5 and is within the length interval [5, 7], the first time domain transmission length can be 5, 6 or 7 by setting, so that the first time domain transmission length and the second time The time domain transmission length is within a length interval.
  • the network device determines that the first time domain transmission length is equal to the second time domain transmission length if the first threshold value is zero.
  • the embodiment of the present application may provide that, for the time domain transmission length in the same length interval, if the downlink processing time of the terminal device is determined according to the first mapping relationship, it is used to determine downlink processing of the terminal device.
  • the time domain transmission length of time is the maximum time domain transmission length of the length interval, that is, the time domain transmission lengths located in the same length interval are uniformly treated according to the maximum time domain transmission length of the length interval. From this perspective, the difference between the first time domain transmission length and the second time domain transmission length is less than the first threshold, and is also understood to be equal to the first time domain transmission length and the second time domain transmission length. However, the equality here is not substantially equal, but is treated according to the same time domain transmission length when determining the downlink processing time.
  • the network device determines that the first subcarrier spacing is the same as the second subcarrier spacing. That is, by configuration, the first subcarrier spacing is the same as the second subcarrier spacing.
  • the network device may make the first subcarrier spacing indicated by the first scheduling configuration parameter also be 15 kHz.
  • the network device determines that the first reference signal mapping manner is the same as the second reference signal mapping manner. That is, by configuration, the first reference signal mapping manner is the same as the second reference signal mapping manner.
  • the network device may enable the first reference signal mapping manner indicated by the first scheduling configuration parameter to be no additional PDSCH DM. -RS configuration.
  • the scheduling configuration indicated by the scheduling configuration information may include at least one of a time domain transmission length, a subcarrier spacing, and a reference signal mapping manner, so that at least one of the three conditions satisfies a corresponding condition, so that the first The first scheduling configuration indicated by the scheduling configuration information is close to the second scheduling configuration indicated by the second scheduling configuration information.
  • the first scheduling configuration and the second scheduling configuration may be the same, thereby even Determining the first processing time directly according to the first scheduling configuration, the determined first processing time may be the same as the processing time determined according to the second scheduling configuration, or may be relatively close, so that the determined according to the first processing time
  • the first feedback signal transmission time can meet the processing delay requirement of the terminal device for the combined decoding of the retransmission data and the initial transmission data, and reduce the possibility that the terminal device cannot send the first feedback signal or directly send the NACK because the processing cannot be completed. Reduce unnecessary scheduling transmission of the base station and improve the spectrum efficiency of the system.
  • FIG. 5 shows a schematic structural diagram of a network device 500.
  • the network device 500 can implement the functionality of the network devices referred to above.
  • the network device 500 may be the network device described above or may be a chip disposed in the network device described above.
  • the network device 500 can include a processor 501 and a transceiver 502.
  • the processor 501 can be used to perform S41, S42, S43 in the embodiment shown in FIG. 43, and/or other processes for supporting the techniques described herein.
  • Transceiver 502 can be used to perform S44 in the embodiment shown in FIG. 4, and/or other processes for supporting the techniques described herein.
  • the processor 501 is configured to determine a first scheduling configuration of the first physical downlink shared channel, where the first physical downlink shared channel is used to carry retransmission data of the first transport block, where the first scheduling configuration includes a first time domain transmission length of the first physical downlink shared channel, a first subcarrier spacing of the signal of the first physical downlink shared channel, and a first reference signal of a demodulation reference signal of the first physical downlink shared channel At least one of mapping methods;
  • the processor 501 is further configured to determine, according to the first scheduling configuration of the first physical downlink shared channel, a first processing time for the first physical downlink shared channel;
  • the processor 501 is further configured to determine, according to the first processing time, a transmission time that the terminal device sends the first feedback signal, where the first feedback signal is used to carry a feedback signal for the first physical downlink shared channel;
  • the transceiver 502 is configured to send the first scheduling configuration information, a transmission time of the first feedback signal, and the first physical downlink shared channel.
  • FIG. 6 shows a schematic structural diagram of a terminal device 600.
  • the network device 600 can implement the functions of the network devices referred to above.
  • the terminal device 600 may be the terminal device described above, or may be a chip provided in the terminal device described above.
  • the terminal device 600 can include a processor 601 and a transceiver 602.
  • the processor 601 can be used to perform S45 in the embodiment shown in FIG. 4, and/or other processes for supporting the techniques described herein.
  • the transceiver 602 can be used to perform S44 in the embodiment shown in FIG. 4, and/or other processes for supporting the techniques described herein.
  • the processor 601 is configured to determine first scheduling configuration information of the first physical downlink shared channel, where the first physical downlink shared channel is used to carry retransmission data of the first transport block, and the first scheduling configuration information, a first time domain transmission length of the first physical downlink channel, a first subcarrier spacing of a signal of the first physical downlink shared channel, and a first reference of a demodulation reference signal of the first physical downlink shared channel At least one of signal mapping methods;
  • the transceiver 602 is configured to receive the first physical downlink shared channel.
  • the transceiver 602 is further configured to receive the first scheduling configuration information.
  • the transceiver 602 is further configured to receive a transmission time of the feedback signal of the first physical downlink shared channel.
  • the processor 601 is further configured to determine, according to the first scheduling configuration information, a first processing time, where the terminal device does not send the first processing time after receiving the first physical downlink shared channel end time A feedback signal for the first physical downlink shared channel.
  • network device 500 or terminal device 600 may also be implemented by the structure of communication device 700 as shown in FIG. 7A.
  • the communication device 700 can implement the functions of the network device or the terminal device referred to above.
  • the communication device 700 can include a processor 701. Wherein, when the communication device 700 is used to implement the functions of the network device in the embodiment shown in FIG. 4, the processor 701 can be used to execute S41, S42, S43, and/or in the embodiment shown in FIG. Other processes that support the techniques described herein. When the communication device 700 is used to implement the functions of the terminal device in the embodiment shown in FIG. 4, the processor 701 can be used to perform S45 in the embodiment shown in FIG. 4, and/or to support the methods described herein. Other processes of technology.
  • the communication device 700 can pass through a field-programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), a central processor (central processor). Unit, CPU), network processor (NP), digital signal processor (DSP), microcontroller (micro controller unit (MCU), or programmable logic device (programmable logic device, The PLD) or other integrated chip implementation, the communication device 600 can be configured in the network device or the terminal device of the embodiment of the present application, so that the network device or the terminal device implements the wireless communication method provided by the embodiment of the present application.
  • FPGA field-programmable gate array
  • ASIC application specific integrated circuit
  • SoC system on chip
  • CPU central processor
  • NP network processor
  • DSP digital signal processor
  • MCU microcontroller
  • programmable logic device programmable logic device
  • the communication device 700 can also include a memory 702, which can be referenced to FIG. 7B, where the memory 702 is used to store computer programs or instructions, and the processor 701 is used to decode and execute the computer programs or instructions. .
  • these computer programs or instructions may include the functional programs of the network devices or terminal devices described above.
  • the function program of the network device is decoded and executed by the processor 701
  • the network device can be configured to implement the function of the network device in the wireless communication method provided by the embodiment shown in FIG. 4 of the embodiment of the present application.
  • the terminal device can be caused to implement the function of the terminal device in the method of wireless communication provided by the embodiment shown in FIG. 4 of the embodiment of the present application.
  • the functional programs of these network devices or terminal devices are stored in a memory external to the communication device 700.
  • the function program of the network device is decoded and executed by the processor 701
  • part or all of the contents of the function program of the network device are temporarily stored in the memory 702.
  • the function program of the terminal device is decoded and executed by the processor 701
  • part or all of the contents of the function program of the terminal device are temporarily stored in the memory 702.
  • the functional programs of these network devices or terminal devices are disposed in a memory 702 that is stored internal to the communication device 700.
  • the communication device 700 can be disposed in the network device of the embodiment of the present application.
  • the function program of the terminal device is stored in the memory 702 inside the communication device 700, the communication device 700 can be disposed in the terminal device of the embodiment of the present application.
  • portions of the functional programs of the network devices are stored in a memory external to the communication device 700, and other portions of the functional programs of the network devices are stored in the memory 702 internal to the communication device 700.
  • portions of the functional programs of these terminal devices are stored in a memory external to the communication device 700, and other portions of the functional programs of the terminal devices are stored in the memory 702 inside the communication device 700.
  • the network device 500, the terminal device 600, and the communication device 700 are presented in the form of dividing each functional module into functions, or may be presented in an integrated manner to divide the functional modules.
  • a “module” herein may refer to an ASIC, a processor and memory that executes one or more software or firmware programs, integrated logic circuitry, and/or other devices that provide the functionality described above.
  • the network device 500 provided by the embodiment shown in FIG. 5 can also be implemented in other forms.
  • the network device includes a processing module and a transceiver module.
  • the processing module can be implemented by the processor 501, and the transceiver module can be implemented by the transceiver 502.
  • the processing module can be used to execute S41, S42, S43 in the embodiment shown in FIG. 4, and/or other processes for supporting the techniques described herein.
  • the transceiver module can be used to perform S44 in the embodiment shown in FIG. 4, and/or other processes for supporting the techniques described herein.
  • the processing module is configured to determine a first scheduling configuration of the first physical downlink shared channel, where the first physical downlink shared channel is used to carry retransmission data of the first transport block, where the first scheduling configuration includes the a first time domain transmission length of the first physical downlink shared channel, a first subcarrier spacing of the signal of the first physical downlink shared channel, and a first reference signal mapping of a demodulation reference signal of the first physical downlink shared channel At least one of the modes;
  • the processing module is further configured to determine, according to the first scheduling configuration of the first physical downlink shared channel, a first processing time for the first physical downlink shared channel;
  • the processing module is further configured to determine, according to the first processing time, a transmission time that the terminal device sends the first feedback signal, where the first feedback signal is used to carry a feedback signal for the first physical downlink shared channel;
  • the transceiver module is configured to send the first scheduling configuration information, a transmission time of the first feedback signal, and the first physical downlink shared channel.
  • the terminal device 600 provided by the embodiment shown in FIG. 6 can also be implemented in other forms.
  • the terminal device includes a processing module and a transceiver module.
  • the processing module can be implemented by the processor 601
  • the transceiver module can be implemented by the transceiver 602.
  • the processing module can be used to perform S45 in the embodiment shown in FIG. 4, and/or other processes for supporting the techniques described herein.
  • the transceiver module can be used to perform S44 in the embodiment shown in FIG. 4, and/or other processes for supporting the techniques described herein.
  • the processing module is configured to determine first scheduling configuration information of the first physical downlink shared channel, where the first physical downlink shared channel is used to carry retransmission data of the first transport block, where the first scheduling configuration information includes a first time domain transmission length of the first physical downlink channel, a first subcarrier spacing of the signal of the first physical downlink shared channel, and a first reference signal of a demodulation reference signal of the first physical downlink shared channel At least one of mapping methods;
  • a transceiver module configured to receive the first physical downlink shared channel
  • the transceiver is further configured to receive the first scheduling configuration information
  • the transceiver is further configured to receive a transmission time of the feedback signal of the first physical downlink shared channel.
  • the processing module is further configured to determine, according to the first scheduling configuration information, a first processing time, where the terminal device does not send the first processing time after receiving the first physical downlink shared channel end time The feedback signal of the first physical downlink shared channel.
  • the network device 500, the terminal device 600, and the communication device 700 provided by the embodiments of the present application can be used to perform the method provided by the embodiment shown in FIG. 4, so that the technical effects that can be obtained can be referred to the foregoing method embodiment, where No longer.
  • Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another readable storage medium, for example, the computer instructions can be passed from a website site, computer, server or data center Wired (eg, coaxial cable, fiber, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.) to another website site, computer, server, or data center.
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD) ))Wait.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a digital versatile disc (DVD)
  • DVD digital versatile disc
  • semiconductor medium eg, a solid state disk (SSD)

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  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un dispositif de communication sans fil, étant utilisés pour un procédé pour déterminer un temps de traitement de liaison descendante, les procédés de communication sans fil comprenant les opérations suivantes : un dispositif de réseau détermine une première configuration de planification d'un premier canal partagé de liaison descendante physique, le premier canal partagé de liaison descendante physique étant utilisé pour transporter des données de retransmission d'un premier bloc de transmission, la première configuration de planification comprenant au moins l'une d'une première longueur de transmission de domaine temporel du premier canal partagé de liaison descendante physique, un premier intervalle de sous-porteuse d'un signal du premier canal partagé de liaison descendante physique et un premier mode de mappage de signal de référence d'un signal de référence de démodulation du premier canal partagé de liaison descendante physique ; le dispositif de réseau détermine un premier temps de traitement du premier canal partagé de liaison descendante physique selon la première configuration de planification ; le dispositif de réseau détermine le temps de transmission du dispositif de terminal lors de l'envoi d'un premier signal de rétroaction selon le premier temps de traitement ; et le dispositif de réseau envoie des premières informations de configuration de planification, le temps de transmission du premier signal de rétroaction et le premier canal partagé de liaison descendante physique.
PCT/CN2018/115086 2017-11-17 2018-11-12 Procédé et dispositif de communication sans fil WO2019096098A1 (fr)

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CN114503753A (zh) * 2022-01-12 2022-05-13 北京小米移动软件有限公司 物理下行共享信道的处理时间参数的确定方法及装置

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