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WO2021197270A1 - Procédé, appareil et système de transmission d'informations - Google Patents

Procédé, appareil et système de transmission d'informations Download PDF

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Publication number
WO2021197270A1
WO2021197270A1 PCT/CN2021/083605 CN2021083605W WO2021197270A1 WO 2021197270 A1 WO2021197270 A1 WO 2021197270A1 CN 2021083605 W CN2021083605 W CN 2021083605W WO 2021197270 A1 WO2021197270 A1 WO 2021197270A1
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WIPO (PCT)
Prior art keywords
pdsch
value
information
pusch
pucch resource
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Ceased
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PCT/CN2021/083605
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English (en)
Chinese (zh)
Inventor
李胜钰
官磊
马蕊香
李锐杰
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication of WO2021197270A1 publication Critical patent/WO2021197270A1/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
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation

Definitions

  • This application relates to the field of wireless communication, and in particular to information transmission methods, devices and systems.
  • Ultra-reliable and low latency communications is a service supported by the fifth generation (5th Generation, 5G) communication system.
  • the hybrid automatic repeat request (HARQ) mechanism is an effective method to meet reliability requirements while improving spectrum efficiency.
  • some applications in the URLLC service may require extremely low transmission delay (for example, 1 to 2 ms loopback delay, that is, 0.5 ms to 1 ms one-way air interface delay) and extremely high reliability requirements (for example, 99.999 % Or even 99.9999999% reliability), but in the HARQ mechanism, the retransmission is performed after the initial transmission fails, which will increase the service transmission delay.
  • extremely low transmission delay for example, 1 to 2 ms loopback delay, that is, 0.5 ms to 1 ms one-way air interface delay
  • extremely high reliability requirements for example, 99.999 % Or even 99.9999999% reliability
  • the embodiments of the present application provide an information transmission method, device, and system, which can reduce transmission delay.
  • the embodiments of the present application provide an information transmission method.
  • the method can be executed by a terminal device or a component of the terminal device, such as a processor, a chip, or a chip system of the terminal device.
  • the device executes this method as an example for description.
  • the method includes: a terminal device receives a first PDSCH from a network device and first information, the first information indicates a first PUCCH resource, and then, the terminal device sends HARQ-ACK information of the first PDSCH on the first PUCCH resource.
  • the time interval between the end symbol of the first PDSCH and the start symbol of the first PUCCH resource is greater than or equal to the first threshold.
  • the first threshold represents the minimum PDSCH processing delay.
  • the first threshold is The value is the first value.
  • the first condition is not met, the value of the first threshold is the second value, and the first value is smaller than the second value.
  • the minimum PDSCH processing delay is reduced when the first condition is met. Therefore, under the first condition, the time interval between the first PUCCH resource scheduled by the network device and the first PDSCH can be reduced.
  • HARQ-ACK information can be sent on the first PUCCH resource. It is not necessary to send HARQ-ACK information after the second value after the end symbol of the PDSCH starts, thereby speeding up HARQ-ACK feedback and reducing transmission time.
  • the PDSCH processing flow is simplified, which can shorten the HARQ-ACK feedback delay. This shortening of the HARQ-ACK feedback delay does not require an additional increase in the processing capacity of the chip, which will not Put forward new requirements for the chip architecture, which is easy for product realization.
  • the information transmission method may further include: the terminal device receives second information from the network device, the second information indicating that the HARQ-ACK feedback of the first PDSCH is a separate feedback.
  • the terminal device can learn that the HARQ-ACK feedback of the first PDSCH is a separate feedback, so there is no need to wait for the HARQ-ACKs of other PDSCHs to be fed back together, or there is no need to generate HARQ-ACK codebooks, thereby reducing PDSCH processing Time, so that the minimum processing delay of PDSCH can be reduced, thereby reducing the transmission delay.
  • the embodiments of the present application provide an information transmission method.
  • the method can be executed by a network device or a component of the network device, such as a processor, a chip, or a chip system of the network device.
  • the device executes this method as an example for description.
  • the method includes: a network device sends a first PDSCH and first information to a terminal device, the first information indicates a first PUCCH resource, and then the network device receives the HARQ-ACK of the first PDSCH from the terminal device on the first PUCCH resource information.
  • the time interval between the end symbol of the first PDSCH and the start symbol of the first PUCCH resource is greater than or equal to the first threshold.
  • the first threshold represents the minimum PDSCH processing delay.
  • the first threshold When the first condition is met, the first threshold is The value is the first value. When the first condition is not met, the value of the first threshold is the second value, and the first value is smaller than the second value.
  • the technical effects brought about by the second aspect can be referred to the technical effects brought about by the above-mentioned first aspect.
  • the information transmission method may further include: the network device sends second information to the terminal device, the second information indicating that the HARQ-ACK feedback of the first PDSCH is a separate feedback.
  • the first condition may include: the first PDSCH is a PDSCH that is not transmitted for the first time in a semi-persistent scheduled SPS PDSCH.
  • the terminal device since the non-first transmission of SPS PDSCH does not require DCI scheduling, the terminal device does not need to receive DCI and decode it. Therefore, the PDSCH processing process may not include DCI decoding, thereby reducing the PDSCH processing time and making the PDSCH the lowest The processing delay can be reduced, thereby reducing the transmission delay.
  • the first condition may further include: in the time unit where the first PDSCH is located, no monitoring opportunity of the physical downlink control channel PDCCH is configured.
  • the terminal device since the PDCCH monitoring opportunity is not configured in the time unit where the first PDSCH is located, the terminal device does not need to monitor the PDCCH in this time unit, that is, when the first PDSCH is SPS PDSCH, it is not the first time.
  • the transmitted PDSCH does not need to monitor the PDCCH in the time unit where the first PDSCH is located, the PDSCH processing time can be reduced.
  • the foregoing first information further indicates a second PUCCH resource
  • the second PUCCH resource is used to carry HARQ-ACK information of the second PDSCH
  • the second PDSCH It is the PDSCH transmitted for the first time in the above-mentioned SPS PDSCH, and the time interval between the end symbol of the second PDSCH and the start symbol of the second PUCCH resource is greater than or equal to the second value.
  • the network device since the network device configures the second PUCCH resource used to carry the HARQ-ACK information of the PDSCH transmitted for the first time in the SPS PDSCH, it can take into account the feedback of the HARQ-ACK information of the PDSCH transmitted for the first time.
  • the first condition may include: the HARQ-ACK feedback of the first PDSCH is a separate feedback.
  • the HARQ-ACK feedback of the first PDSCH is a separate feedback, there is no need to wait for the HARQ-ACKs of other PDSCHs to be fed back together, or there is no need to generate HARQ-ACK codebooks, so that the PDSCH processing time can be reduced, and the PDSCH The minimum processing delay can be reduced, thereby reducing the transmission delay.
  • the first condition may include: the PUCCH format associated with the first PUCCH resource is format 0 or format 1.
  • the PUCCH format associated with the first PUCCH resource used to carry the HARQ-ACK information of the first PDSCH is format 0 or format 1
  • the first PUCCH resource can only carry the HARQ of the first PDSCH -ACK information
  • the HARQ-ACK feedback of the first PDSCH is a separate feedback, which can reduce the processing time of the PDSCH, so that the minimum processing delay of the PDSCH can be reduced, thereby reducing the transmission delay.
  • the first condition may include: the PDSCH HARQ-ACK codebook is not configured.
  • the network device since the network device does not configure the PDSCH HARQ-ACK codebook for the terminal device, when the terminal device performs the HARQ-ACK feedback of the PDSCH, it does not need to generate the codebook, thereby reducing the PDSCH processing time and making the PDSCH the lowest processing time The delay can be reduced, thereby reducing the transmission delay.
  • the foregoing first threshold satisfies the following first formula:
  • T 1 (N 1 +d 1,1 )(2048+144)*k*T c *2 - ⁇ 1
  • T 1 is the first threshold
  • N 1 is the number of first symbols
  • d 1,1 is the first additional value
  • k is the ratio of the minimum sampling interval of the first communication system to the minimum sampling interval of the second communication system
  • T c is the minimum sampling interval of the second communication system
  • ⁇ 1 is the number of the first subcarrier interval
  • the first PDSCH is transmitted in the second communication system
  • the first subcarrier interval is the subcarrier interval used by the first PDSCH.
  • the subcarrier interval used by the PDCCH of a PDSCH, the smallest subcarrier interval among the subcarrier intervals used by the first PUCCH, or the first subcarrier interval is the subcarrier interval used by the first PDSCH and the first PUCCH
  • the smallest sub-carrier spacing in the sub-carrier spacing; the number of first symbols corresponding to the first value is less than the number of first symbols corresponding to the second value, and/or the first additional value corresponding to the first value is less than that corresponding to the second value The first additional value.
  • the foregoing second value is the PDSCH minimum processing delay specified in Release 15 or Release 16 of the 3rd Generation Partnership Project 3GPP.
  • the embodiments of the present application provide an information transmission method.
  • the method can be executed by a terminal device or a component of the terminal device, such as a processor, a chip, or a chip system of the terminal device.
  • the device executes this method as an example for description.
  • the method includes: a terminal device receives scheduling information from a network device, the scheduling information is used to schedule a first physical uplink shared channel PUSCH; the terminal device sends the first PUSCH, wherein the start symbol of the first PUSCH and the scheduling information
  • the time interval between the end symbols of the physical downlink control channel PDCCH is greater than or equal to the second threshold.
  • the second threshold represents the minimum PUSCH transmission preparation delay. When the second condition is met, the second threshold takes the value of the first Three values, when the second condition is not met, the second threshold takes the fourth value, and the third value is smaller than the fourth value.
  • the minimum PUSCH transmission preparation delay is reduced when the second condition is met, under the second condition, the time interval between the PUSCH scheduled by the network device and the PDCCH where the scheduling information for scheduling the PUSCH is located It can be reduced, so that when the terminal device completes the PUSCH transmission preparation in advance, it can transmit the PUSCH earlier, thereby reducing the transmission delay; on the other hand, because the second condition is met, the PUSCH transmission preparation process is simplified, which can shorten the PUSCH transmission Preparation time delay. This shortening of PUSCH transmission preparation time delay does not require an additional increase in the processing capacity of the chip, which does not impose new requirements on the chip architecture and is easy to implement.
  • the information transmission method further includes: the terminal device receives indication information from the network device, the indication information indicating the redundancy version of the first PUSCH.
  • the embodiments of the present application provide an information transmission method.
  • the method can be executed by a network device or a component of the network device, such as a processor, a chip, or a chip system of the network device.
  • the device executes this method as an example for description.
  • the method includes: a network device sends scheduling information to a terminal device, the scheduling information is used to schedule a first physical uplink shared channel PUSCH, and then the network device receives a first PUSCH from the terminal device, wherein the start symbol of the first PUSCH
  • the time interval between the end symbol of the physical downlink control channel PDCCH where the scheduling information is located is greater than or equal to the second threshold.
  • the second threshold represents the minimum PUSCH transmission preparation delay.
  • the second threshold The value is a third value.
  • the second threshold value is a fourth value, and the third value is smaller than the fourth value.
  • the information transmission method further includes: the network device sends instruction information to the terminal device, where the instruction information indicates the redundancy version of the first PUSCH.
  • the second condition may include: the transport block size TBS of the first PUSCH is a preset value.
  • the terminal device can perform MAC PDU assembly in advance, there is no need to perform MAC PDU assembly again after receiving the scheduling information, which can reduce the PUSCH transmission preparation time, so that the minimum PUSCH transmission preparation delay can be reduced, and thus Send PUSCH earlier to reduce transmission delay.
  • the second condition may further include: the HARQ process of the first PUSCH hybrid automatic repeat request is a preset process, and the preset value is to use the preset process. Set the TBS of the process for data transmission.
  • the terminal device can save the MAC PDU to the HARQ buffer of the preset process after assembling the MAC PDU for subsequent coding and modulation.
  • the second condition may further include: the modulation and coding scheme MCS of the first PUSCH is a preset scheme, or the modulation and coding scheme MCS of the first PUSCH It is a preset solution and the redundancy version of the first PUSCH is a preset version.
  • the terminal device can complete coding or complete coding and modulation before receiving the scheduling information, which can further reduce the PUSCH transmission preparation time, so that the minimum PUSCH transmission preparation time can be reduced, and the PUSCH can be transmitted earlier, reducing the transmission time Extension.
  • the second condition may include: the data sent on the first PUSCH is retransmitted data of the first uplink data.
  • the terminal device since the retransmission and the initial transmission transmit the same uplink data, that is, the same MAC PDU is transmitted, and the terminal device has already generated and saved the MAC PDU when the first uplink data is initially transmitted, so when the first uplink data is retransmitted
  • the terminal device does not need to perform MAC PDU grouping, thereby reducing the PUSCH transmission preparation time, so that the minimum PUSCH transmission preparation delay can be reduced, and the PUSCH can be transmitted earlier and the transmission delay can be reduced.
  • the MCS used by the first PUSCH is the same as the MCS used for the initial transmission of the first uplink data.
  • the terminal device may not need to perform coding and modulation again when retransmitting the first uplink data, so that Reduce PUSCH transmission preparation time, thereby reducing transmission delay.
  • the foregoing second threshold satisfies the following second formula:
  • T 2 max((N 2 +d 2,1 )(2048+144)*k*T c *2 - ⁇ 2 ,d 2,2 )
  • T 2 is the second threshold
  • N 2 is the number of second symbols
  • d 2,1 is the second additional value
  • d 2,2 is the third additional value
  • k is the minimum sampling interval of the first communication system and the second The ratio of the minimum sampling interval of the communication system
  • T c is the minimum sampling interval of the second communication system
  • ⁇ 2 is the number of the second subcarrier interval
  • the first PUSCH is transmitted in the second communication system
  • the second subcarrier interval is the first The smallest subcarrier spacing between the subcarrier spacing used by PUSCH and the subcarrier spacing used for scheduling the PDCCH of the first PUSCH; at least one of the following three conditions is met: the number of second symbols corresponding to the third value is less than the fourth value The number of second symbols corresponding to the numerical value; the second additional value corresponding to the third numerical value is less than the second additional value corresponding to the fourth numerical value; the third additional value corresponding to the third numerical value is less than the third additional value corresponding to the fourth numerical value.
  • the fourth value is the minimum PUSCH transmission preparation delay specified in Release 15 or Release 16 of the 3rd Generation Partnership Project 3GPP.
  • the embodiments of the present application provide an information transmission method.
  • the method can be executed by a terminal device or a component of the terminal device, such as a processor, a chip, or a chip system of the terminal device.
  • the device executes this method as an example for description.
  • the method includes: a terminal device receives a third physical downlink shared channel PDSCH from a network device, and determines a third physical uplink shared channel PUSCH, and the third PUSCH is associated with the third PDSCH; after that, the terminal device sends a third physical downlink shared channel to the network device.
  • the third threshold represents the minimum processing delay from receiving the PDSCH to sending the PUSCH associated with the PDSCH .
  • the embodiments of the present application provide an information transmission method.
  • the method can be executed by a network device or a component of the network device, such as a processor, a chip, or a chip system of the network device.
  • the device executes this method as an example for description.
  • the method includes: a network device sends a third PDSCH to a terminal device and receives a third PUSCH from the terminal device, where the third PUSCH is associated with the third PDSCH.
  • the time interval between the start symbol of the third PUSCH and the end symbol of the third PDSCH is greater than or equal to the third threshold
  • the third threshold represents the minimum processing delay from receiving the PDSCH to sending the PUSCH associated with the PDSCH.
  • the third PUSCH is associated with the third PDSCH, including: the third PDSCH and the third PUSCH are scheduled by the first downlink control information DCI.
  • the first DCI includes time domain resource indication information of the third PDSCH and time domain resource indication information of the third PUSCH.
  • the first DCI includes time domain resource indication information, offset information, and position indication information of the third PDSCH, and the offset information is used to determine the The time unit where the third PUSCH is located, and the position indication information indicates the position of the third PUSCH in the time unit.
  • the third PUSCH is associated with the third PDSCH, including: the third PUSCH is scheduled by the third PDSCH.
  • the third PDSCH includes time domain resource indication information of the third PUSCH.
  • the third PUSCH is associated with the third PDSCH, including: the third PDSCH is a semi-persistent scheduled SPS PDSCH, and the third PUSCH is a configuration authorization CG PUSCH , Where the third PUSCH is the first CG PUSCH after the third PDSCH.
  • the period of the SPS PDSCH is the same as the period of the CG PUSCH.
  • the third PUSCH is associated with the third PDSCH, and further includes: when the third PDSCH is unsuccessfully decoded, the third PUSCH is not sent.
  • a communication device for implementing the above-mentioned various methods.
  • the communication device may be the terminal device in the first aspect, the third aspect, or the fifth aspect, or the device including the terminal device, or the device included in the terminal device; or, the communication device may be the second aspect.
  • the communication device includes a module, unit, or means corresponding to the foregoing method, and the module, unit, or means can be realized by hardware, software, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules or units corresponding to the above-mentioned functions.
  • a communication device including: a processor and a memory; the memory is used to store computer-executable instructions, and when the processor executes the instructions, the communication device can execute the communication device described in any of the above aspects. method.
  • the communication device may be the terminal device in the first aspect, the third aspect, or the fifth aspect, or the device including the terminal device, or the device included in the terminal device; or, the communication device may be the second aspect.
  • a communication device including: a processor; the processor is configured to couple with a memory, and after reading an instruction in the memory, execute the method according to any of the foregoing aspects according to the instruction.
  • the communication device may be the terminal device in the first aspect, the third aspect, or the fifth aspect, or the device including the terminal device, or the device included in the terminal device; or, the communication device may be the second aspect.
  • a communication device including: a processor and an interface circuit, the interface circuit is used to receive signals from other communication devices other than the communication device and transmit them to the processor or transfer signals from the processor The signal is sent to another communication device other than the communication device, and the processor is used to implement the method described in any one of the foregoing aspects through a logic circuit or an execution code instruction.
  • a computer-readable storage medium stores a computer program or instruction.
  • the communication device can execute any of the above The method described in the aspect.
  • a computer program product containing instructions.
  • the computer program product includes computer program code, which when running on a computer, enables the computer to execute the method described in any of the above aspects.
  • a communication device for example, the communication device may be a chip or a chip system
  • the communication device includes a processor for implementing the functions involved in any of the foregoing aspects.
  • the communication device further includes a memory for storing necessary program instructions and data.
  • the communication device is a chip system, it may be composed of a chip, or may include a chip and other discrete devices.
  • a communication system which includes the terminal device according to the first or third aspect or the fifth aspect and the network device according to the second or fourth aspect or the sixth aspect. .
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the application
  • FIG. 2 is a schematic structural diagram of a terminal device and a network device provided by an embodiment of this application;
  • FIG. 3 is a schematic structural diagram of another terminal device provided by an embodiment of this application.
  • FIG. 4 is a schematic flowchart of an information transmission method provided by an embodiment of this application.
  • FIG. 5 is a schematic diagram of the location of a PDSCH provided by an embodiment of the application.
  • FIG. 6 is a schematic flowchart of another information transmission method provided by an embodiment of this application.
  • FIG. 7 is a schematic flowchart of yet another information transmission method provided by an embodiment of this application.
  • FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 9 is a schematic structural diagram of another communication device mentioned in an embodiment of this application.
  • the HARQ mechanism is a retransmission mechanism of the medium access control (MAC) layer, and it exists at both the sending end and the receiving end.
  • the HARQ operation of the sender includes generating and sending a transport block (TB), receiving and processing hybrid automatic repeat request-acknowledgement (HARQ-ACK) information, and so on.
  • the HARQ-ACK information includes an acknowledgement (acknowledgement, ACK) or a negative acknowledgement (negative acknowledgement, NACK).
  • the HARQ operation of the receiving end includes receiving TB, performing HARQ combining processing on the received initial transmission data and HARQ retransmission data, generating and feeding back ACK/NACK, and so on.
  • the receiving end After receiving a TB sent by the sending end, the receiving end performs a cyclic redundancy check (CRC) on it, and if the CRC check succeeds, it feeds back an ACK to the sending end; if the CRC check fails, it feeds back a NACK. If the sender receives an ACK, it will perform a new transmission; if the sender receives a NACK, it will retransmit.
  • CRC cyclic redundancy check
  • PDSCH minimum processing time delay refers to the minimum time delay between the end time of the PDSCH and the first time, where the first time is the time when the terminal device sends the HARQ-ACK information of the PDSCH.
  • the third generation partnership project (3rd generation partnership project, 3GPP) version (release, R) 15 or version 16 stipulates that the minimum processing delay of PDSCH satisfies the following formula A:
  • T proc,1 (N 1 +d 1,1 )(2048+144)*k*T c *2 - ⁇
  • T proc,1 is the minimum processing delay of PDSCH
  • N 1 is the number of first symbols, and its value can be related to terminal processing capability, subcarrier spacing, and whether additional demodulation reference signal (demodulation reference signal) is included. , DMRS) related.
  • DMRS demodulation reference signal
  • the value of N 1 may be as shown in Table 1 below.
  • N 1,0 is the preset value, which can have different values in different situations; 9 (band 1) means that the value of N 1 in frequency band 1 is 9, and N 1 has no value in frequency band 2; Indicates that N 1 has no value.
  • d 1,1 is the first additional value, and its value can be the same as the PDSCH mapping type (mapping type), the time domain length of the PDSCH, or the overlapping symbol of the physical downlink control channel (physical downlink control channel, PDCCH) for scheduling the PDSCH and the PDSCH
  • PDCCH physical downlink control channel
  • the first communication system may be a long term evolution (LTE) system, for example.
  • LTE long term evolution
  • the maximum subcarrier interval of the second communication system is greater than the maximum subcarrier interval of the first communication system, and the maximum number of subcarriers of the second communication system is greater than the maximum number of subcarriers of the first communication system, exemplary, the second communication system
  • the maximum sub-carrier spacing of may be 480 kHz, the maximum number of sub-carriers may be 4096, and the second communication system may be, for example, a new radio (NR) system, which is not specifically limited in the embodiment of the present application.
  • NR new radio
  • ⁇ is the number of the sub-carrier interval, and the sub-carrier interval corresponding to the number of the sub-carrier interval can be shown in Table 2 below.
  • ⁇ is the subcarrier interval used by the PDCCH for scheduling PDSCH, the subcarrier interval used by PDSCH, and the subcarrier used by the physical uplink control channel (PUCCH) that carries HARQ-ACK information The number of the smallest subcarrier interval in the interval.
  • Subcarrier interval number Subcarrier spacing 0 15kHz 1 30kHz 2 60kHz 3 120kHz 4 240kHz
  • the PDSCH minimum processing delay specified by 3GPP R15/R16 takes into account the delays of the following four links, or in other words, the PDSCH processing process includes the following four links:
  • Link 1 PDCCH blind detection, including PDCCH reception at possible PDCCH positions: PDCCH reception, downlink control information (DCI) decoding in PDCCH, or cyclic redundancy check, etc.
  • DCI downlink control information
  • Part 2 PDSCH reception, including radio frequency reception, demodulation, or decoding, etc.
  • Link 3 HARQ-ACK codebook (codebook) generation.
  • Step 4 Preparation for HARQ-ACK codebook transmission, including coding, modulation, and resource mapping.
  • PUSCH minimum transmission preparation delay refers to the minimum delay between the end time of the PDCCH where the PUSCH information is scheduled and the second time, where the second time is the start time of sending the PUSCH, or in other words, the second time is The start time of this PUSCH.
  • the minimum transmission preparation delay of PUSCH satisfies the following formula B:
  • T proc,2 max((N 2 +d 2,1 )(2048+144)*k*T c *2 - ⁇ ,d 2,2 )
  • T proc,2 is the minimum processing delay of PUSCH
  • N 2 is the number of second symbols, and its value can be related to terminal processing capability and subcarrier spacing.
  • the value of N 2 may be as shown in Table 3 below.
  • Subcarrier interval number Terminal processing capability #1
  • Terminal processing capability #2 0 10 5 1 12 5.5 2 twenty three 11 (band 1) 3 36 /
  • 11 means that the value of N 2 in frequency band 1 is 11, and that N 2 has no value in frequency band 2; / means that N 2 has no value.
  • the PUSCH is transmitted in the second communication system and will not be repeated here.
  • d 2,1 is the second additional value, its value is related to whether the first symbol of PUSCH only contains DMRS, when the first symbol of PUSCH only includes DMRS, its value is 0; when the first symbol of PUSCH When the symbol does not only include DMRS, its value is 1.
  • d 2,1 is the third additional value, which represents the switching delay of the bandwidth part (BWP).
  • ⁇ is the number of the sub-carrier interval, and the sub-carrier interval corresponding to the number of the sub-carrier interval can be as shown in Table 2 above.
  • ⁇ is the number of the smallest subcarrier interval between the subcarrier interval used by the PDCCH for scheduling the PUSCH and the subcarrier interval used by the PUSCH.
  • PUSCH transmission preparation includes the following three links:
  • Link 1 PDCCH blind detection, including PDCCH reception at possible PDCCH positions: PDCCH reception, DCI decoding in PDCCH, or cyclic redundancy check, etc.
  • Link 2 MAC layer protocol data unit (protocoldata unit, PDU) grouping.
  • Link 3 PUSCH transmission preparation at the physical layer, including coding, modulation, or resource mapping, etc.
  • SPS semi-persistent scheduling
  • SPS PDSCH refers to the PDSCH configured by network equipment for terminal equipment through SPS PDSCH configuration information.
  • the SPS PDSCH configuration information may indicate information such as the period of the SPS PDSCH and the number of HARQ processes.
  • the configuration can be activated through DCI.
  • the DCI indicates the time domain position of the PDSCH transmitted for the first time in the SPS PDSCH, that is, the PDSCH transmitted for the first time in the SPS PDSCH is scheduled by the DCI, and subsequent SPS PDSCH transmissions are determined according to the time domain position of the first transmission of the SPS PDSCH and the period configured by higher layers.
  • one transmission of SPS PDSCH corresponds to one transmission occasion, and this transmission occasion may be referred to as an SPS PDSCH occasion (occasion).
  • the time domain position of the physical channel refers to the time unit where the physical channel is located, or refers to the time unit where the physical channel is located and the symbol position in the time unit.
  • the physical channel here can be PUSCH, PDSCH, PUCCH or PDCCH. It can be understood that in the embodiments of this application, PUSCH, PDSCH, PUCCH, and PDCCH are specific examples of uplink data channel, downlink data channel, uplink control channel, and downlink control channel, respectively. These channels may be used in different communication systems. There are different names, which are not limited in this application.
  • time unit in the embodiment of the present application may be a sub-slot, a time slot, a sub-frame, a frame, etc., which is not specifically limited in the embodiment of the present application; the symbol in the embodiment of the present application may refer to an orthogonal frequency. Division (orthogonal frequency division multiplexing, OFDM) symbols.
  • OFDM orthogonal frequency division multiplexing
  • the CG PUSCH refers to a PUSCH configured by a network device for a terminal device through a configured grant configuration (ConfiguredGrantConfig) cell in a radio resource control (radio resource control, RRC) signaling.
  • the CG PUSCH is sent periodically, and one sending corresponds to one sending occasion, and this sending occasion may be referred to as a CG PUSCH occasion (occasion).
  • Configured grant type 1 Configured grant Type1: Configured CG PUSCH cycle, first transmission offset, symbols occupied by CG PUSCH in the time unit and all parameters related to CG PUSCH in the ConfiguredGrantConfig cell.
  • the terminal device can determine the time domain position of the CG PUSCH through time domain parameters such as the period, the first transmission offset value, and the symbols occupied by the CG PUSCH in the time unit.
  • This type of CG takes effect after it is configured through RRC signaling, and does not need to be activated through DCI, nor does it need to be deactivated through DCI.
  • Configured grant type 2 (Configured grant Type 2): The period of configuring CG PUSCH, the number of HARQ processes and other parameters related to CG PUSCH in the ConfiguredGrantConfig cell. After this type of CG is configured through RRC signaling, it needs to be activated through DCI to take effect, and can be deactivated through DCI.
  • the network device indicates to the terminal device the time domain position of the PUSCH transmitted for the first time in the CG PUSCH through the DCI.
  • the terminal device may determine the time domain position of the PUSCH that is not transmitted for the first time in the CG PUSCH through the period of the CG PUSCH and the time domain position of the PUSCH transmitted for the first time.
  • PDCCH monitoring occasion (PDCCH monitoring occasion) configuration Sixth, PDCCH monitoring occasion (PDCCH monitoring occasion) configuration:
  • the PDCCH monitoring timing configuration is used to configure the terminal equipment to monitor the PDCCH timing.
  • the configuration can include the monitoring period, the time unit that needs to be monitored in the period, and the monitoring timing pattern corresponding to the time unit.
  • the monitoring timing pattern is length It is an N bit sequence corresponding to the N symbols included in the time unit. When the value of a bit is "0", it means that the terminal device in the symbol corresponding to the bit does not need to monitor the PDCCH. Accordingly, the network device does not send the PDCCH to the terminal device in the symbol; when the value of the bit is When "1", it means that the PDCCH needs to be monitored in the symbol corresponding to the bit. Accordingly, the network device may send the PDCCH to the terminal device within the symbol.
  • the communication system may be the NR system in the 5th generation (5G) mobile communication system, the wireless-fidelity (WiFi) system, and the 3rd generation partnership project (3GPP) related
  • the communication system and the future evolution of the communication system, etc. are not restricted.
  • the term "system” can be used interchangeably with "network”.
  • the 5G communication system is a next-generation communication system under study. Among them, 5G communication systems include non-standalone (NSA) 5G mobile communication systems and standalone (SA) 5G mobile communication systems.
  • NSA non-standalone
  • SA standalone
  • the above-mentioned communication system to which this application is applied is only an example, and the communication system to which this application is applied is not limited to this.
  • the communication system 10 includes at least one network device 30 and one or more terminal devices 40 connected to the network device 30.
  • different terminal devices 40 can communicate with each other.
  • the network device sends the first PDSCH and first information to the terminal device, and the first information indicates the first PUCCH resource; the terminal After the device receives the first PDSCH and the first information from the network device, it sends the HARQ-ACK information of the first PDSCH to the network device on the first PUCCH resource, where the end symbol of the first PDSCH and the first PUCCH resource
  • the time interval between the start symbols is greater than or equal to the first threshold, which represents the minimum PDSCH processing delay.
  • the first threshold represents the minimum PDSCH processing delay.
  • the minimum PDSCH processing delay is reduced when the first condition is met. Therefore, under the first condition, the time interval between the first PUCCH resource scheduled by the network device and the first PDSCH can be reduced.
  • HARQ-ACK information can be sent on the first PUCCH resource. It is not necessary to send HARQ-ACK information after the second value after the end symbol of the PDSCH starts, thereby speeding up HARQ-ACK feedback and reducing transmission time.
  • the PDSCH processing flow is simplified, which can shorten the HARQ-ACK feedback delay. This shortening of the HARQ-ACK feedback delay does not require an additional increase in the processing capacity of the chip, which will not Put forward new requirements for the chip architecture, which is easy for product realization.
  • the network device 30 in the embodiment of the present application is a device that connects the terminal device 40 to the wireless network, including but not limited to: evolved Node B (eNodeB) in LTE, and base station in NR (gNodeB or gNB) or transceiver point (transmission reception point, TRP), the base station of the subsequent evolution of 3GPP, the access node in the WiFi system, the wireless relay node, the wireless backhaul node, etc.
  • the base station can be: a macro base station, a micro base station, a pico base station, a small station, a relay station, or a balloon station, etc. Multiple base stations can support networks of the same technology mentioned above, or networks of different technologies mentioned above.
  • the base station can contain one or more co-site or non-co-site TRPs.
  • the network device may also be a wireless controller, a centralized unit (CU), and/or a distributed unit (DU) in a cloud radio access network (cloud radio access network, CRAN) scenario.
  • the following description takes the network device as a base station as an example.
  • the base station can communicate with the terminal, and it can also communicate with the terminal through a relay station.
  • the terminal can communicate with multiple base stations of different technologies.
  • the terminal can communicate with a base station that supports an LTE network, can also communicate with a base station that supports a 5G network, and can also support dual connections with a base station of an LTE network and a base station of a 5G network. .
  • the terminal device 40 in the embodiment of the present application is a device with a transceiver function, which can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.) ; Can also be deployed in the air (such as aircraft, balloons and satellites, etc.).
  • the terminal device 40 may be a mobile phone, a tablet computer, a computer with wireless transceiving function, a terminal device in an Internet of Things system, for example, a virtual reality terminal device, an augmented reality terminal device, a terminal device in industrial control, and an unmanned driving device.
  • Terminal equipment in the field terminal equipment in assisted driving, terminal equipment in telemedicine, terminal equipment in smart grid, terminal equipment in transportation safety, terminal equipment in smart city, terminal equipment in smart home, etc.
  • the terminal device 40 may also be an in-vehicle module, an in-vehicle module, an in-vehicle component, an in-vehicle chip, or an in-vehicle unit built into the vehicle as one or more components or units.
  • An on-board component, on-board chip, or on-board unit can implement the method of the present application. The embodiments of this application do not limit the application scenarios.
  • Terminal equipment may also be called terminal or user equipment (UE) sometimes.
  • the terminal can be fixed or mobile.
  • the network device 30 and the terminal device 40 in the embodiment of the present application may also be referred to as a communication device, which may be a general-purpose device or a special-purpose device.
  • FIG. 2 is a schematic structural diagram of a network device 30 and a terminal device 40 provided by an embodiment of the application.
  • the terminal device 40 includes at least one processor and at least one transceiver.
  • FIG. 2 exemplarily includes one processor 401 and one transceiver 403 for illustration.
  • the terminal device 40 may further include at least one memory, at least one output device, and at least one input device. In FIG. 2, it is exemplarily described by including a memory 402, an output device 404, and an input device 405.
  • the processor 401, the memory 402, and the transceiver 403 are connected through a communication line.
  • the communication line may include a path to transmit information between the above-mentioned components.
  • the processor 401 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of this application .
  • the processor 401 may also include multiple CPUs, and the processor 401 may be a single-core processor or a multi-core processor.
  • the processor here may refer to one or more devices, circuits, or processing cores for processing data.
  • the memory 402 may be a device having a storage function. For example, it can be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions. Dynamic storage devices, which can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM), or other optical disk storage or disk storage media Or other magnetic storage devices, or any other medium that can be used to carry or store computer-executable instructions and that can be accessed by a computer, but is not limited to this.
  • the memory 402 may exist independently, and is connected to the processor 401 through a communication line. The memory 402 may also be integrated with the processor 401.
  • the memory 402 is used to store computer-executable instructions for executing the solutions of the present application, and the processor 401 controls the execution.
  • the processor 401 is configured to execute computer-executable instructions stored in the memory 402, so as to implement the information transmission method described in the embodiment of the present application.
  • the computer executable instructions in the embodiments of the present application may also be referred to as application program code or computer program code.
  • the transceiver 403 may be used to communicate with other devices, equipment or communication networks.
  • the transceiver 403 may include a transmitter (transmitter, Tx) and a receiver (receiver, Rx).
  • the output device 404 communicates with the processor 401, and can display information in a variety of ways.
  • the output device 404 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector) Wait.
  • LCD liquid crystal display
  • LED light emitting diode
  • CRT cathode ray tube
  • projector projector
  • the input device 405 communicates with the processor 401, and can accept user input in a variety of ways.
  • the input device 405 may be a mouse, a keyboard, a touch screen device, or a sensor device.
  • the network device 30 includes at least one processor, at least one transceiver, and at least one network interface.
  • FIG. 2 exemplarily includes a processor 301, a transceiver 303, and a network interface 304 for illustration.
  • the network device 30 may further include at least one memory.
  • FIG. 2 including a memory 302 is taken as an example for description.
  • the processor 301, the memory 302, the transceiver 303, and the network interface 304 are connected through a communication line.
  • the network interface 304 is used to connect to the core network device through a link (for example, the S1 interface), or to connect with the network interface of other network devices (not shown in FIG. 2) through a wired or wireless link (for example, the X2 interface).
  • the application embodiment does not specifically limit this.
  • the description of the processor 401, the memory 402, and the transceiver 403 in the terminal device 40 may be made to the description of the processor 401, the memory 402, and the transceiver 403 in the terminal device 40.
  • FIG. 3 is a specific structural form of the terminal device 40 provided in an embodiment of the application.
  • the functions of the processor 401 in FIG. 2 may be implemented by the processor 110 in FIG. 3.
  • the function of the transceiver 403 in FIG. 2 may be implemented by the antenna 1 in FIG. 3, the mobile communication module 150, and the like.
  • the mobile communication module 150 can provide a wireless communication solution including 2G/3G/4G/5G and the like applied to the terminal device 40.
  • the mobile communication module 150 may include at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), and the like.
  • the mobile communication module 150 can receive electromagnetic waves by the antenna 1, and perform processing such as filtering, amplifying and transmitting the received electromagnetic waves to the modem processor for demodulation.
  • the mobile communication module 150 can also amplify the signal modulated by the modem processor, and convert it into electromagnetic waves for radiation via the antenna 1.
  • at least part of the functional modules of the mobile communication module 150 may be provided in the processor 110.
  • at least part of the functional modules of the mobile communication module 150 and at least part of the modules of the processor 110 may be provided in the same device.
  • the antenna 1 of the terminal device 40 is coupled with the mobile communication module 150, so that the terminal device 40 can communicate with the network and other devices through wireless communication technology.
  • the function of the output device 404 in FIG. 2 may be implemented by the display screen 194 in FIG. 3.
  • the display screen 194 is used to display images, videos, and so on.
  • the display screen 194 includes a display panel.
  • the function of the input device 405 in FIG. 2 may be implemented by a mouse, a keyboard, a touch screen device, or the sensor module 180 in FIG. 3.
  • the terminal device 40 may further include one of an audio module 170, a camera 193, a SIM card interface 195, a USB interface 130, a charging management module 140, a power management module 141, and a battery 142. Or more.
  • the structure shown in FIG. 3 does not constitute a specific limitation on the terminal device 40.
  • the terminal device 40 may include more or fewer components than shown in the figure, or combine certain components, or split certain components, or arrange different components.
  • the illustrated components can be implemented in hardware, software, or a combination of software and hardware.
  • the information transmission method includes the following steps:
  • the network device sends the first PDSCH to the terminal device.
  • the terminal device receives the first PDSCH from the network device.
  • the network device sends the first information to the terminal device.
  • the terminal device receives the first information from the network device.
  • the first information indicates the first PUCCH resource, and the first PUCCH resource is used to carry HARQ-ACK information of the first PDSCH.
  • the time interval between the end symbol of the first PDSCH and the start symbol of the first PUCCH resource is greater than or equal to a first threshold, and the first threshold represents the minimum PDSCH processing delay.
  • the first threshold represents the minimum PDSCH processing delay.
  • the first threshold The value of is the first value.
  • the value of the first threshold is the second value, and the first value is less than the second value.
  • the second value may be the minimum PDSCH processing delay specified in 3GPP R15 or R16.
  • step S401 can be performed first, and then step S402; alternatively, step S402 can be performed first, and then step S401; or, step S401 and step S402 can be performed at the same time.
  • step S401 can be performed first, and then step S402; alternatively, step S402 can be performed first, and then step S401; or, step S401 and step S402 can be performed at the same time.
  • the embodiments of the present application do not specifically limit this.
  • the terminal device sends HARQ-ACK information of the first PDSCH to the network device on the first PUCCH resource.
  • the network device receives the HARQ-ACK information of the first PDSCH from the terminal device on the first PUCCH resource.
  • the terminal device may determine whether the time interval between the end symbol of the first PDSCH and the start symbol of the first PUCCH resource indicated by the first information is greater than or equal to the first threshold When the time interval is greater than or equal to the first threshold, the HARQ-ACK information of the first PDSCH is sent to the network device on the first PUCCH resource. When the time interval is less than the first threshold, the HARQ-ACK information of the first PDSCH is not sent to the network device, or NACK is sent to the network device (regardless of whether the first PDSCH is successfully decoded). Wherein, not sending HARQ-ACK information to the network device can be understood as not sending any information to the network device.
  • the terminal device does not expect that the time interval is less than the first threshold, that is, the first PUCCH resource indicated by the first information sent by the network device needs to meet: the end symbol of the first PDSCH and the start of the first PUCCH resource The time interval between symbols is greater than or equal to the first threshold.
  • the terminal device After receiving the first PDSCH, the terminal device starts a timer after the end time of the first PDSCH, and the duration of the timer is the first threshold.
  • the timer expires, if the start time of the first PUCCH resource has not arrived, when the start time of the first PUCCH resource arrives, the terminal device sends the HARQ of the first PDSCH to the network device on the first PUCCH resource. -ACK information.
  • the minimum PDSCH processing delay is reduced when the first condition is met. Therefore, under the first condition, the time interval between the first PUCCH resource scheduled by the network device and the first PDSCH can be reduced.
  • HARQ-ACK information can be sent on the first PUCCH resource. It is not necessary to send HARQ-ACK information after the second value after the end symbol of the PDSCH starts, thereby speeding up HARQ-ACK feedback and reducing transmission time.
  • the PDSCH processing flow is simplified, which can shorten the HARQ-ACK feedback delay. This shortening of the HARQ-ACK feedback delay does not require an additional increase in the processing capacity of the chip, which will not Put forward new requirements for the chip architecture, which is easy for product realization.
  • the first condition may also be different.
  • the first condition may include: the first PDSCH is a PDSCH that is not transmitted for the first time in a semi-persistent scheduling (SPS) PDSCH.
  • SPS semi-persistent scheduling
  • the PDSCH that is not transmitted for the first time in the SPS PDSCH can also be understood as a PDSCH that is not scheduled by DCI, and the two can be replaced with each other.
  • the terminal device since the non-first transmission of SPS PDSCH does not require DCI scheduling, the terminal device does not need to receive DCI and decode it. Therefore, the PDSCH processing process may not include DCI decoding, thereby reducing the PDSCH processing time and making the PDSCH The minimum processing delay can be reduced, thereby reducing the transmission delay.
  • the first condition may further include: in the time window where the first PDSCH is located, no monitoring occasion of the PDCCH is configured. Specifically, it may be: in the time window where the first PDSCH is located, the network device does not configure the PDCCH monitoring opportunity for the terminal device.
  • the time window can correspond to one or more consecutive symbols in the time domain.
  • no PDCCH monitoring timing can be understood as: terminal equipment does not need to perform blind PDCCH detection within this period of time, that is, there is no need to monitor PDCCH; for network equipment, within a period of time When the network device does not configure the PDCCH monitoring opportunity for the terminal device, the network device does not send the PDCCH to the terminal device within this period of time.
  • one of the length of the aforementioned time window, the interval between the start position of the time window and the first PDSCH start symbol, and the interval between the end position of the time window and the end symbol of the first PDSCH may be preset values, and the preset values may be configured by the network device to the terminal device.
  • the time window is the time unit where the first PDSCH is located.
  • the network device does not configure the PDCCH monitoring opportunity for the terminal device.
  • a time slot includes 14 symbols as an example.
  • the time domain position of the first PDSCH is symbol 3 to symbol 5 in time slot n+1, that is, where the first PDSCH is located.
  • the time unit is the time slot n+1, and the network device has not configured the terminal device with the monitoring timing of the PDCCH in the 14 symbols in the time slot n+1.
  • the network device does not configure the PDCCH monitoring opportunity for the terminal device.
  • the time domain position of the first PDSCH is symbol 3 to symbol 5 in slot n+1.
  • the network equipment does not configure the PDCCH monitoring opportunity for the terminal device.
  • symbols other than symbol 3 to symbol 5 may be configured for PDCCH monitoring Timing may not be configured.
  • the terminal device since the PDCCH monitoring opportunity is not configured in the time window where the first PDSCH is located, the terminal device does not need to monitor the PDCCH in this time window, that is, when the first PDSCH is the SPS PDSCH that is not transmitted for the first time PDSCH, and when there is no need to monitor the PDCCH in the time window where the first PDSCH is located, the PDSCH processing time can be reduced.
  • the first information also indicates a second PUCCH resource
  • the second PUCCH resource is used to carry HARQ-ACK information of the second PDSCH.
  • the second PDSCH is the PDSCH transmitted for the first time in the above-mentioned SPS PDSCH.
  • the time interval between the end symbol and the start symbol of the second PUCCH is greater than or equal to the foregoing second value.
  • the first information may indicate the first PUCCH resource and the second PUCCH resource in the following four ways.
  • the first information includes two sets of information: the first set of information and the second set of information.
  • the first group of information includes first PUCCH resource indication information and a first timing offset value.
  • the first timing offset value is used to determine the first time unit, the first time unit is the time unit where the first PUCCH resource is located, and the first timing offset value may be, for example, the time unit where the first PDSCH is located and the first time unit.
  • the first PUCCH resource indication information indicates the position of the first PUCCH resource in the first time unit, for example, indicates the symbol occupied by the first PUCCH resource in the first time unit.
  • the time interval between the start symbol of the first PUCCH resource and the end symbol of the first PDSCH indicated by the first group of information is greater than or equal to the first value.
  • the second group of information includes second PUCCH resource indication information and a second timing offset value.
  • the second timing offset value is used to determine the second time unit, the second time unit is the time unit where the second PUCCH resource is located, and the second timing offset value may be, for example, the time unit where the second PDSCH is located and the second time unit.
  • the interval between units; the second PUCCH resource indication information indicates the position of the second PUCCH resource in the second time unit, for example, indicates the symbol occupied by the second PUCCH resource in the second time unit.
  • the time interval between the start symbol of the second PUCCH resource and the end symbol of the second PDSCH indicated by the second set of information is greater than or equal to the second value.
  • the first timing offset value and the second timing offset value may be the same, that is, the timing offset value corresponding to the first PUCCH resource is the same as the timing offset value corresponding to the second PUCCH resource.
  • the first timing offset value The offset value and the second timing offset value can be represented by the same parameter.
  • the first information includes first PUCCH resource indication information, second PUCCH resource indication information, timing offset value, and first offset value.
  • the timing offset value may be the first timing offset value or the second timing offset value.
  • the first offset value is used to determine the second timing offset value in combination with the first timing offset value; when the timing offset value is the second timing offset value, The first offset value is used to determine the first timing offset value in combination with the second timing offset value.
  • the first PUCCH resource indication information and the second PUCCH resource indication information may be the same information, that is, the resource number of the first PUCCH resource in the first time unit indicated by the first PUCCH resource indication information and the second PUCCH resource
  • the resource numbers of the second PUCCH resources indicated by the indication information in the second time unit are the same, where a resource number in the time unit corresponds to a PUCCH resource in the time unit (including the frequency domain position of the PUCCH resource and the resource number in the time unit).
  • PUCCH resources indicated by the same resource number in different time units are the same (that is, the frequency domain position is the same, the symbols occupied in the time unit are the same, and other transmission parameters are the same). That is to say, in this case, the difference between the first PUCCH resource and the second PUCCH resource is only in the time unit in which they are located.
  • the first information includes a first timing offset value, a second timing offset value, PUCCH resource indication information, and a second offset value.
  • the PUCCH resource indication information may be the first PUCCH resource indication information or the second PUCCH resource indication information.
  • the second offset value is used to determine the position of the second PUCCH resource in the second time unit in combination with the first PUCCH resource indication information.
  • the first PUCCH resource indication information may be a resource number corresponding to the first PUCCH resource in the first time unit (the following embodiments of this application will refer to it as the first resource number), according to the second offset value and The first resource number can determine the second resource number, and accordingly, the second PUCCH resource is the PUCCH resource corresponding to the second resource number in the second time unit; or, the first PUCCH resource indication information can indicate the status of the first PUCCH resource Time-frequency position and other transmission parameters, the second offset value may be the difference between the number of the start symbol of the second PUCCH resource and the number of the start symbol of the first PUCCH resource, and accordingly, the second PUCCH can be determined The start symbol of the resource in the second time unit.
  • the second offset value is used to determine the position of the first PUCCH resource in the first time unit in combination with the second PUCCH resource indication information.
  • the second PUCCH resource indication information may be the resource number (ie, the second resource number) corresponding to the second PUCCH resource in the second time unit, and the first resource number may be determined according to the second offset value and the second resource number.
  • the resource number (that is, the resource number corresponding to the first PUCCH resource in the first time unit), correspondingly, the first PUCCH resource is the PUCCH resource corresponding to the first resource number in the first time unit; or, the second PUCCH resource indicator
  • the information may indicate the time-frequency position and other transmission parameters of the second PUCCH resource, and the second offset value may be the difference between the number of the start symbol of the first PUCCH resource and the number of the start symbol of the second PUCCH resource, Correspondingly, the start symbol of the first PUCCH resource in the first time unit can be determined.
  • the time domain length of the first PUCCH resource and the second PUCCH resource can be the same, and other transmission parameters can be the same.
  • the first timing offset value and the second timing offset value may be the same information, that is, the values of the first timing offset value and the second timing offset value may be the same, or in other words, the first PUCCH resource
  • the corresponding timing offset value is the same as the timing offset value corresponding to the second PUCCH resource.
  • the first information includes a timing offset value, PUCCH resource indication information, and a third offset value.
  • the timing offset value may be the first timing offset value
  • the PUCCH resource indication information is the first PUCCH resource indication information
  • the third offset value is used to determine the second timing offset in combination with the first timing offset value
  • the value can also be used to determine the second PUCCH resource in combination with the first PUCCH resource indication information.
  • the timing offset value may be the second timing offset value
  • the PUCCH resource indication information is the second PUCCH resource indication information
  • the third offset value is used to determine the first timing offset in combination with the second timing offset value
  • the value can also be used to determine the first PUCCH resource in combination with the second PUCCH resource indication information.
  • the first information can be carried in RRC signaling or physical layer signaling, for example, the first information is one or more fields in DCI; or part of the first information can be carried in RRC signaling, Another part of the information can be carried in the physical layer signaling.
  • the network device can also indicate the first PUCCH resource and the second PUCCH resource to the terminal device in the following four ways.
  • the SPS PDSCH configuration information includes the first timing offset value, the first PUCCH resource indication information, the second timing offset value, and part of the second PUCCH resource indication information, and the SPS PDSCH configuration is activated
  • the DCI includes another part of the four types of information.
  • the configuration information of the SPS PDSCH includes the first PUCCH resource indication information and the second PUCCH resource indication information
  • the DCI for activating the SPS PDSCH configuration includes the first timing offset value and the second timing offset value.
  • the configuration information of the SPS PDSCH includes the first PUCCH resource indication information, the second PUCCH resource indication information, the timing offset value, and some of the information in the first offset value, and is included in the DCI for activating the SPS PDSCH configuration Including the other part of the four types of information.
  • the configuration information of the SPS PDSCH includes the first PUCCH resource indication information, the second PUCCH resource indication information, and the first offset value
  • the DCI for activating the SPS PDSCH configuration includes the timing offset value.
  • the SPS PDSCH configuration information includes the first timing offset value, the second timing offset value, PUCCH resource indication information, and part of the second offset value, and is included in the DCI for activating the SPS PDSCH configuration Including the other part of the four types of information.
  • the configuration information of the SPS PDSCH includes PUCCH resource indication information and the second offset value
  • the DCI for activating the SPS PDSCH configuration includes the first timing offset value and the second timing offset value.
  • the SPS PDSCH configuration information includes timing offset value, PUCCH resource indication information, and part of the third offset value, and the DCI that activates the SPS PDSCH configuration includes another part of the three kinds of information information.
  • the configuration information of the SPS PDSCH includes PUCCH resource indication information and the third offset value
  • the DCI for activating the SPS PDSCH configuration includes the timing offset value.
  • the first condition may include: the HARQ-ACK feedback of the first PDSCH is a separate feedback.
  • separate feedback can be understood as not being fed back together with HARQ-ACKs of other PDSCHs; or, it can also be understood as feedback not based on codebooks.
  • the HARQ-ACK feedback of the first PDSCH is a separate feedback, there is no need to wait for the HARQ-ACKs of other PDSCHs to be fed back together, or there is no need to generate HARQ-ACK codebooks, so that the PDSCH processing time can be reduced, so that The minimum processing delay of the PDSCH can be reduced, thereby reducing the transmission delay.
  • the information transmission method may further include: the network device sends the second information to the terminal device.
  • the terminal device receives the second information from the network device.
  • the second information indicates that the HARQ-ACK feedback of the first PDSCH is independent feedback.
  • the second information may be included in the DCI for scheduling the first PDSCH.
  • the second information may be located in a specific bit field in the DCI, and when the value of the specific bit field is a preset value, it indicates the first PDSCH
  • the HARQ-ACK feedback is a separate feedback.
  • the specific bit field may be dedicated to indicating whether the HARQ-ACK feedback of the first PDSCH is a separate feedback, which may be called a codebook indicator bit field, for example, that is, the codebook bit field may explicitly indicate the first PDSCH.
  • a codebook indicator bit field for example, that is, the codebook bit field may explicitly indicate the first PDSCH.
  • the HARQ-ACK feedback of a PDSCH is a separate feedback, for example, if the size of the codebook bit field is 1 bit and the preset value is 1, then when the codebook bit field takes the value "1", it indicates the first
  • the HARQ-ACK feedback of the PDSCH is a separate feedback.
  • the specific bit field may have other functions, and the other functions may be used to indirectly indicate whether the HARQ-ACK feedback of the first PDSCH is independent feedback.
  • the specific bit field may be, for example, a timing offset value bit field, and the timing offset value bit field is used to indicate the difference between the number of the time unit where the first PUCCH resource is located and the number of the time unit where the first PDSCH is located.
  • the timing offset value bit field may indirectly indicate that the HARQ-ACK feedback of the first PDSCH is independent feedback.
  • the value of the timing offset value bit field is "000"
  • the difference indicated by "000” is A2 as an example, if the preset difference is A1, It indicates that the HARQ-ACK feedback of the first PDSCH is not a separate feedback. If the preset difference is A2, it indicates that the HARQ-ACK feedback of the first PDSCH is a separate feedback.
  • the value of the timing offset value bit field when the value of the timing offset value bit field is a preset value, it indirectly indicates that the HARQ-ACK feedback of the first PDSCH is independent feedback.
  • the value of the timing offset value bit field is "000"
  • the preset value is "000” as an example, it indicates the HARQ-ACK of the first PDSCH
  • the feedback is a separate feedback (regardless of the difference indicated by "000").
  • the terminal device may perform HARQ-ACK feedback of the first PDSCH according to the second information, thereby reducing PDSCH processing time.
  • the first condition may include: the PUCCH format associated with the first PUCCH resource is format 0 or format 1.
  • the first PUCCH resource associated with the HARQ-ACK information used to carry the first PDSCH is When the PUCCH format is format 0 or format 1, it can be understood that the first PUCCH resource can only carry the HARQ-ACK information of the first PDSCH, or it can be understood that the HARQ-ACK feedback of the first PDSCH is a separate feedback, thereby reducing the PDSCH.
  • the processing time of the PDSCH can be reduced to reduce the minimum processing delay of the PDSCH, thereby reducing the transmission delay.
  • the first condition may include: no PDSCH HARQ-ACK codebook is configured. Specifically, the network device may not configure the PDSCH HARQ-ACK codebook for the terminal device.
  • the terminal device since the network device does not configure the PDSCH HARQ-ACK codebook for the terminal device, the terminal device does not need to generate the codebook when performing the HARQ-ACK feedback of the PDSCH, thereby reducing the PDSCH processing time and making the PDSCH minimum processing The delay can be reduced, thereby reducing the transmission delay.
  • the first threshold may satisfy the following first formula:
  • T 1 (N 1 +d 1,1 )(2048+144)*k*T c *2 - ⁇ 1
  • T 1 is the first threshold
  • N 1 is the number of first symbols
  • d 1,1 is the first additional value
  • k is the ratio of the minimum sampling interval of the first communication system to the minimum sampling interval of the second communication system
  • T c is the minimum sampling interval of the second communication system
  • ⁇ 1 is the number of the first subcarrier interval
  • the first PDSCH is transmitted in the second communication system.
  • the first subcarrier interval is the smallest subcarrier interval among the subcarrier interval used by the PDCCH for scheduling the first PDSCH, the subcarrier interval used by the first PDSCH, and the subcarrier interval used by the first PUCCH.
  • the first subcarrier interval is the smallest subcarrier interval between the subcarrier interval used by the first PDSCH and the subcarrier interval used by the first PUCCH.
  • the number of first symbols corresponding to the first value is smaller than the number of first symbols corresponding to the second value, and/or the first additional value corresponding to the first value is smaller than the first additional value corresponding to the second value.
  • the value of the number of first symbols corresponding to the first value may be as shown in Table 4 below.
  • band 1 indicates that the value of the first symbol number corresponding to the first value in band 1 is 6 or 7, and there is no value in band 2; / indicates the first symbol number corresponding to the first value No value.
  • the first additional value corresponding to the first value may be zero.
  • the value of the first threshold is related to k, T c, and ⁇ 1. Therefore, the first value may be different when k, T c, and ⁇ 1 take different values. Similarly, the second value may be different when k, T c , and ⁇ 1 take different values. In the embodiment of the present application, the first value smaller than the second value may be: when k, T c, and ⁇ 1 are the same, the first value is smaller than the second value.
  • the information transmission method includes the following steps:
  • the network device sends scheduling information to the terminal device.
  • the terminal device receives the scheduling information from the network device.
  • the scheduling information is used to schedule the first PUSCH.
  • the time interval between the start symbol of the first PUSCH and the end symbol of the PDCCH where the scheduling information is located is greater than or equal to the second threshold.
  • the second threshold represents the minimum PUSCH transmission preparation delay.
  • the second threshold When the second condition is met, the second threshold The value of is the third value.
  • the value of the second threshold is the fourth value, and the third value is less than the fourth value.
  • the fourth value may be the minimum PUSCH transmission preparation delay specified in 3GPP R15/R16.
  • the terminal device sends the first PUSCH to the network device.
  • the network device receives the first PUSCH from the terminal device.
  • the terminal device may determine whether the time interval between the start symbol of the first PUSCH and the end symbol of the PDCCH where the scheduling information is located is greater than or equal to the second threshold.
  • the first PUSCH is sent.
  • the first PUSCH is not sent. That is, the terminal device does not expect that the time interval is less than the second threshold, that is, the first PUSCH scheduled by the scheduling information sent by the network device needs to meet: the start symbol of the first PUSCH and the end symbol of the PDCCH where the scheduling information is located
  • the time interval between is greater than or equal to the second threshold.
  • the terminal device after receiving the scheduling information, the terminal device starts a timer after the end time of the PDCCH where the scheduling information is located, and the duration of the timer is the second threshold.
  • the terminal device sends the first PUSCH to the network device.
  • the minimum PUSCH transmission preparation delay is reduced when the second condition is met, under the second condition, the time interval between the PUSCH scheduled by the network device and the PDCCH where the scheduling information for scheduling the PUSCH is located It can be reduced, so that when the terminal device completes the PUSCH transmission preparation in advance, it can transmit the PUSCH earlier, thereby reducing the transmission delay; on the other hand, because the second condition is met, the PUSCH transmission preparation process is simplified, which can shorten the PUSCH transmission Preparation time delay. This shortening of PUSCH transmission preparation time delay does not require an additional increase in the processing capacity of the chip, which does not impose new requirements on the chip architecture and is easy to implement.
  • the second condition may also be different.
  • the second condition may include: the data sent on the first PUSCH is retransmitted data of the first uplink data.
  • the terminal device does not need to perform MAC PDU grouping, thereby reducing the PUSCH transmission preparation time, so that the minimum PUSCH transmission preparation delay can be reduced, and the PUSCH can be transmitted earlier and the transmission delay can be reduced.
  • the third value when the second condition is met, the third value may be referred to as the third value #1.
  • the second condition may include: the data sent on the first PUSCH is retransmitted data of the first uplink data, and the MCS used by the first PUSCH is a preset MCS. Further, the redundancy version of the first PUSCH may be a preset version.
  • Case 1 The MCS used by the first PUSCH is the same as the MCS used by the second PUSCH, and the redundancy version used by the first PUSCH is the same as the redundancy version used by the second PUSCH.
  • the first uplink data transmitted on the second PUSCH is the initial transmission data.
  • the retransmission of the first uplink data is the same as the MCS used for the initial transmission, and the retransmission of the first uplink data is the same as the redundancy version used for the initial transmission.
  • the terminal device when the terminal device first transmits the first uplink data, after encoding and modulating the MAC PDU corresponding to the first uplink data, it can save the encoded and modulated data. Therefore, when retransmitting the first uplink data, It is enough to read the coded and modulated data from the buffer when data is being used, and there is no need to perform coding and modulation again, which can reduce the PUSCH transmission preparation time and thereby reduce the transmission delay.
  • the terminal device can also save the data after the rate matching after encoding and rate matching the MAC PDU corresponding to the first uplink data. Therefore, when retransmitting the first uplink data, the encoding and rate matching can be read from the buffer. The rate is sufficient, and there is no need to perform coding and rate matching again, so that the PUSCH transmission preparation delay can be reduced.
  • Case 2 The MCS used by the first PUSCH is the same as the MCS used by the second PUSCH.
  • the retransmission of the first uplink data is the same as the MCS used for the initial transmission.
  • the redundancy version used by the first PUSCH may be instructed by the network device to the terminal device, that is, the information transmission method may further include: the network device sends instruction information to the terminal device, and correspondingly, the terminal device receives the information from the network device.
  • the indication information indicates the redundancy version of the first PUSCH.
  • the network device indicates to the terminal device that the redundancy version of the first PUSCH is "3"; or, the redundancy version used by the first PUSCH may be the terminal
  • the device determines at least one of the redundancy version pattern (pattern) configured by the higher layer, the redundancy version used by the second PUSCH, and M, where M indicates that the first PUSCH is the Mth retransmission of the first uplink data
  • the redundancy version mode configured by the higher layer is "0231”
  • the redundancy version used by the second PUSCH is "0”
  • M is 2, that is, the first PUSCH is the second retransmission of the first uplink data
  • the terminal device may determine that the redundancy version used by the first PUSCH is "3".
  • the encoded data can be saved, and after the initial transmission is completed, it can be retrieved from the buffer. Read the coded data and determine the coded bits that need to be transmitted according to the redundancy version used by the first PUSCH, and modulate the coded bits without re-coding, which can reduce the PUSCH transmission preparation time and thus reduce the transmission time Extension.
  • Case 3 The MCS used by the first PUSCH is different from the MCS used by the second PUSCH, and the redundancy version used by the first PUSCH is different from the redundancy version used by the second PUSCH.
  • the MCS used by the first PUSCH may be pre-configured by the network device for the terminal device; the redundancy version used by the first PUSCH may be indicated by the network device to the terminal device, or it may be the terminal device. If the equipment is determined, please refer to the related description of the above case 2, which will not be repeated here.
  • the terminal device can save the MAC PDU corresponding to the first uplink data during the initial transmission, and after the initial transmission is completed, it can read the MAC PDU from the buffer, retransmit the MAC PDU, and determine the need for transmission And modulate the coded bits, and then save the coded and modulated data.
  • the saved coded and modulated data can be sent immediately, which can reduce the transmission delay.
  • the third value when the second condition is met, the third value may be referred to as the third value #2.
  • the magnitude relationship between the third value #1, the third value #2, and the fourth value may be: fourth value>third value #1>third value #2.
  • the second condition may include: the transmission block size (transmission block size, TBS) of the first PUSCH is a preset value.
  • the network device before sending the scheduling information, can indicate to the terminal device that the TBS of the PUSCH to be sent by the terminal device is a preset value through high-level configuration parameters or physical layer signaling; or, before receiving the scheduling information, the terminal device
  • the TBS of the PUSCH to be transmitted can be determined by oneself, which is not specifically limited in the embodiment of the present application.
  • the MAC PDU assembly can be performed in advance, There is no need to wait for receiving scheduling information and then perform MAC PDU assembly according to the scheduling information.
  • RLC radio link control
  • the terminal device can perform MAC PDU assembly in advance, there is no need to perform MAC PDU assembly again after receiving the scheduling information, which can reduce the PUSCH transmission preparation time, so that the minimum PUSCH transmission preparation delay can be reduced, and thus The PUSCH can be sent earlier to reduce the transmission delay.
  • the second condition may further include: the HARQ process of the first PUSCH is a preset process, and the foregoing preset value is a TBS that uses the preset process for data transmission.
  • the preset process may be indicated by the network device to the terminal device.
  • the network device may indicate the HARQ process number of the first PUSCH to the terminal device; or the network device may indicate to the terminal device that the total number of HARQ processes of the terminal device is 1.
  • the terminal device can determine that the HARQ process number of the first PUSCH is a unique HARQ process number predefined by the protocol or a unique HARQ process number configured by the network device, for example, process number #0.
  • the foregoing preset value may be indicated by the network device to the terminal device through high-level configuration parameters or physical layer signaling, or may be determined by the terminal device according to the corresponding relationship between the HARQ process and the TBS. There is no specific limitation.
  • the terminal device can store the MAC PDU in the HARQ buffer of the preset process after assembling the MAC PDU for subsequent coding and modulation.
  • the second condition may further include: the modulation and coding scheme (MCS) of the first PUSCH is a preset scheme; or, the MCS of the first PUSCH is a preset scheme And the redundancy version of the first PUSCH is the preset version.
  • MCS modulation and coding scheme
  • the terminal device can complete coding or complete coding and modulation before receiving the scheduling information, which can further reduce the PUSCH transmission preparation time, so that the minimum PUSCH transmission preparation time can be reduced, and the PUSCH can be transmitted earlier and the transmission delay can be reduced.
  • the network device may explicitly indicate the MCS of the first PUSCH to the terminal device, for example, send the MCS index of the first PUSCH to the terminal device; or, the network device may implicitly indicate the first PUSCH to the terminal device.
  • the MCS of the PUSCH for example, the number of physical resources occupied by the transmission of the first PUSCH to the terminal device.
  • the terminal device can determine the MCS of the first PUSCH in combination with the TBS of the first PUSCH, where the number of physical resources For example, it may be the number of time-domain symbols and/or the number of frequency-domain resource blocks.
  • the network device may indicate the above-mentioned information to the terminal device through RRC signaling, or may indicate it through other means such as physical layer signaling, which is not specifically limited in the embodiment of the present application.
  • the second threshold may satisfy the following second formula:
  • T 2 max((N 2 +d 2,1 )(2048+144)*k*T c *2 - ⁇ 2 ,d 2,2 )
  • T 2 is the second threshold
  • N 2 is the number of second symbols
  • d 2,1 is the second additional value
  • d 2,2 is the third additional value
  • k is the minimum sampling interval of the first communication system and the second the ratio of the minimum sampling interval of the communication system
  • T c is the minimum sampling interval of the second communication system
  • [mu] 2 for the second number of sub-carrier spacing
  • the second subcarrier interval is the smallest subcarrier interval between the subcarrier interval used by the PDCCH where the scheduling information is located and the subcarrier interval used by the first PUSCH.
  • the number of second symbols corresponding to the third value is less than the number of second symbols corresponding to the fourth value
  • the second additional value corresponding to the third value is less than that corresponding to the fourth value.
  • the second additional value and the third additional value corresponding to the third value are smaller than the third additional value corresponding to the fourth value.
  • the value of the second threshold is related to k, T c, and ⁇ 2. Therefore, the third value may be different when k, T c, and ⁇ 2 take different values. Similarly, the fourth value may be different when k, T c, and ⁇ 2 take different values. In the embodiment of the present application, the third value being smaller than the fourth value may be: when k, T c, and ⁇ 2 are the same, the third value is smaller than the fourth value.
  • the embodiment of the present application also provides an information transmission method. As shown in FIG. 7, the information transmission method includes the following steps:
  • the network device sends the third PDSCH to the terminal device.
  • the terminal device receives the third PDSCH from the network device.
  • the terminal device determines the PUSCH associated with the third PDSCH.
  • the PUSCH associated with the third PDSCH is referred to as the third PUSCH.
  • the time interval between the start symbol of the third PUSCH and the end symbol of the third PDSCH is greater than or equal to the third threshold, and the third threshold represents the minimum processing delay from receiving the PDSCH to transmitting the PUSCH associated with the PDSCH.
  • the time when the PDSCH is received can be understood as the end time of the PDSCH; the time when the PUSCH associated with the PDSCH is sent can be understood as the start time of the PUSCH.
  • the terminal device sends the third PUSCH to the network device.
  • the network device receives the third PUSCH from the terminal device.
  • the third PUSCH and the third PDSCH may have different association modes.
  • the third PUSCH is associated with the third PDSCH, which may include: the third PDSCH and the third PUSCH are scheduled by the first DCI.
  • the information transmission method provided in the embodiment of the present application may further include:
  • the network device sends the first DCI to the terminal device.
  • the terminal device receives the first DCI from the network device.
  • the first DCI is used to schedule the third PDSCH and the third PUSCH.
  • the first DCI may schedule the third PDSCH and the third PUSCH in the following two ways:
  • the first DCI may include the time domain resource indication information of the third PDSCH and the time domain resource indication information of the third PUSCH.
  • the time domain resource indication information of the third PDSCH may indicate the position of the third time unit and the third PDSCH in the third time unit, and the third time unit is the time unit where the third PDSCH is located.
  • the time domain resource indication information of the third PDSCH may include: the difference between the number of the time unit where the start symbol of the third PDSCH is located and the number of the time unit where the end symbol of the PDCCH where the first DCI is located, and the third Information on symbols occupied by the PDSCH in the third time unit.
  • the time domain resource indication information of the third PUSCH may indicate the positions of the fourth time unit and the third PUSCH in the fourth time unit, and the fourth time unit is the time unit where the third PUSCH is located.
  • the time domain resource indication information of the third PUSCH may include: the difference between the number of the time unit where the start symbol of the third PUSCH is located and the number of the time unit where the end symbol of the PDCCH where the first DCI is located, and the third Information on symbols occupied by PUSCH in the fourth time unit.
  • the first DCI includes time domain resource indication information, offset information, and location indication information of the third PDSCH.
  • the offset information is used to determine the time unit where the third PUSCH is located, and the location information indicates the position of the third PUSCH in the time unit where it is located.
  • the time-domain resource indication information of the third PDSCH can refer to the related description in the above manner;
  • the offset information can be, for example, the number of the time unit (fourth time unit) where the third PUSCH is located and the number of the third PDSCH where the third PDSCH is located.
  • the difference between the serial numbers of the time unit (the third time unit); the position indication information may be, for example, information on symbols occupied by the third PUSCH in the fourth time unit.
  • the location information may also indicate the frequency domain location information of the third PUSCH.
  • the network device may configure a group of candidate PUSCHs (including the time-frequency location of the PUSCH) in the fourth time unit, and the location information may be The number of one PUSCH in the group of candidate PUSCHs, and the candidate PUSCH corresponding to the number is the third PUSCH.
  • the association of the third PUSCH with the third PDSCH may include: the third PUSCH is scheduled by the third PDSCH.
  • the scheduling of the third PUSCH by the third PDSCH may be: the third PDSCH carries the scheduling information of the third PUSCH.
  • the foregoing step S702 may be: the terminal device determines the third PUSCH according to the scheduling information carried by the third PDSCH.
  • the third PDSCH may be scheduled by the second DCI, and the second DCI may indicate the time domain position of the third PDSCH; or, the third PDSCH may be an SPS PDSCH, and the time domain position of the third PDSCH is determined by the SPS
  • the configuration information of the PDSCH and the DCI for activating the SPS PDSCH configuration are jointly determined.
  • the third PDSCH may include time domain resource indication information of the third PUSCH.
  • the time domain resource indication information of the third PUSCH may indicate the positions of the fourth time unit and the third PUSCH in the fourth time unit, and the fourth time unit is the time unit where the third PUSCH is located.
  • the time domain resource indication information of the third PUSCH may include: the difference between the number of the time unit where the third PUSCH is located and the number of the time unit where the third PDSCH is located, and the position of the third PUSCH in the fourth time unit. Information about the symbol that is occupied.
  • the third PDSCH may also include frequency domain resource indication information of the third PUSCH.
  • the network device may configure a group of candidate PUSCHs (including the time-frequency position of the PUSCH) in the fourth time unit, then the third The PDSCH may include the serial number of one PUSCH in the group of candidate PUSCHs, and the candidate PUSCH corresponding to the serial number is the third PUSCH.
  • the association of the third PUSCH with the third PDSCH may include: the third PDSCH is SPS PDSCH, and the third PUSCH is CGPUSCH, where the third PDSCH is the first SPS PDSCH of the SPS PDSCH.
  • the third PUSCH is the PDSCH sent on the first CG PUSCH timing of the CG PUSCH, and the first CG PUSCH timing is the first CG PUSCH timing after the first SPS PDSCH timing, or the first CG PUSCH timing
  • the PUSCH timing is the first CG PUSCH timing after the end symbol of the first SPS PDSCH timing starts a specific period of time.
  • the third PUSCH is the first PUSCH in the CG PUSCH after the third PDSCH; or, the third PUSCH is the first PUSCH in the CG PUSCH after the end symbol of the third PDSCH starts a specific period of time.
  • the above-mentioned specific duration may be configured by a high-level parameter, or be predefined, and the specific duration may be equal to a third threshold, for example.
  • the period of the SPS PDSCH and the period of the CG PUSCH may be the same or different, which is not specifically limited in the embodiment of the present application.
  • associating the third PUSCH with the third PDSCH may further include: when the third PDSCH decoding is unsuccessful, the third PUSCH is not sent; in other words, the third PUSCH is sent depending on The third PDSCH decoding is successful.
  • the original data for uplink data transmission can only be generated after the downlink data is successfully decoded. Therefore, the processing of uplink data transmission is performed after the downlink data is successfully received.
  • the value of the third threshold is related to the capabilities of the terminal equipment, the subcarrier spacing corresponding to the third PDSCH, and the subcarrier spacing corresponding to the third PUSCH; the third threshold is greater than the first threshold or the second threshold. Threshold.
  • the third threshold may be determined by the number of third symbols and the fourth additional value, the number of third symbols is greater than the number of first symbols corresponding to the second value, or the number of third symbols is greater than the second symbol corresponding to the fourth value Or, the number of third symbols is greater than the number of first symbols corresponding to the second value and greater than the number of second symbols corresponding to the fourth value.
  • the third number of symbols may be the sum of the second number of symbols corresponding to the second value and the second offset value, and the second offset value may be a preset value, and the unit is a symbol.
  • the second offset value may be 1 or 2; or, when the sub-carrier interval used by the third PDSCH is 15 kHz, the second offset value is 1, and when the sub-carrier interval used by the third PDSCH is 60 kHz, the second offset value may be 1 or 2.
  • the second offset value is 2.
  • the second offset value is 1 or 2, which is not specifically limited in the embodiment of the present application.
  • the value of the number of third symbols may be as shown in Table 5 below:
  • 12 or 13 means that the value of the third symbol number in frequency band 1 is 12 or 13, and there is no value in frequency band 2; / means that the third symbol number has no value.
  • the actions of the network devices in the above steps S401 to S403, S601 to S602, and S700 to S703 can be executed by the processor 301 in the network device 30 shown in FIG. 2 calling the application code stored in the memory 302 to instruct the network device to execute.
  • the actions of the terminal device in steps S401 to S403, S601 to S602, and S700 to S703 may be called by the processor 401 in the terminal device 40 shown in FIG. 2 to call the application program code stored in the memory 402 to instruct the terminal device to execute.
  • the terminal device or the network device can perform some or all of the steps in the embodiments of the present application. These steps are only examples, and the embodiments of the present application may also perform other steps or variations of various steps. . In addition, each step may be executed in a different order presented in the embodiment of the present application, and it may not be necessary to perform all the steps in the embodiment of the present application.
  • the methods and/or steps implemented by the terminal device can also be implemented by components (such as chips or circuits) that can be used in the terminal device, and the methods and/or steps implemented by the network device can also be implemented by the terminal device. It can also be implemented by components (such as chips or circuits) that can be used in network devices.
  • an embodiment of the present application also provides a communication device, which is used to implement the foregoing various methods.
  • the communication device may be the terminal device in the foregoing method embodiment, or a device including the foregoing terminal device, or a component that can be used in the terminal device; or, the communication device may be the network device in the foregoing method embodiment, or include the foregoing A device of a network device, or a component that can be used in a network device.
  • the communication device includes hardware structures and/or software modules corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • FIG. 8 and FIG. 9 are schematic structural diagrams of possible communication devices provided by embodiments of this application. These communication devices can be used to implement the functions of the terminal device or the network device in the foregoing method embodiment, and therefore can also achieve the beneficial effects of the foregoing method embodiment.
  • the communication device may be the terminal device 40 shown in FIG. 1, or the network device 30 shown in FIG. 1, or may be a module applied to a terminal device or a network device (such as chip).
  • the embodiments of the present application may divide the communication device into functional modules according to the foregoing method embodiments.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • the communication device 80 includes a receiving module 801 and a sending module 802.
  • the communication device may further include a processing module 803.
  • the communication device 80 is configured to implement the functions of the terminal device or the network device in the method embodiment shown in FIG. 4, FIG. 6, or FIG. 7 above.
  • the receiving module 801 is used to receive the first PDSCH and first information from the network device, the first information indicating the first PUCCH resource
  • the sending module 802 is used to send HARQ-ACK information of the first PDSCH to the network device on the first PUCCH resource
  • the processing module 803 is used to demodulate and decode the data carried in the first PDSCH, and generate the first HARQ-ACK information of a PDSCH.
  • the receiving module 801 is further configured to receive second information from the network device, the second information indicating that the HARQ-ACK feedback of the first PDSCH is a separate feedback.
  • the sending module 802 is used to send the first PDSCH and first information to the terminal device, the first information indicating the first PUCCH resource;
  • the receiving module 801 is configured to receive HARQ-ACK information of the first PDSCH from the terminal device on the first PUCCH resource;
  • the processing module 803 is configured to encode and modulate the data carried in the first PDSCH, and perform the HARQ-ACK information is processed.
  • the sending module 802 is further configured to send second information to the terminal device, the second information indicating that the HARQ-ACK feedback of the first PDSCH is a separate feedback.
  • the receiving module 801 is used to receive scheduling information from the network device, the scheduling information is used to schedule the first PUSCH; the sending module 802, It is used to send the first PUSCH to the network device; the processing module 803 is used to process the scheduling information and encode and modulate the data carried in the first PUSCH.
  • the receiving module 801 is further configured to receive indication information from a network device, where the indication information indicates the redundancy version of the first PUSCH.
  • the sending module 802 is used to send scheduling information to the terminal device, the scheduling information is used to schedule the first PUSCH;
  • the receiving module 801 is used To receive the first PUSCH from the terminal device;
  • the processing module 803 is configured to demodulate and decode the data carried in the first PUSCH.
  • the sending module 802 is further configured to send instruction information to the terminal device, where the instruction information indicates the redundancy version of the first PUSCH.
  • the receiving module 801 is used to receive the third PDSCH from the network device; the processing module 803 is used to determine the third PUSCH, the first The three PUSCHs are associated with the third PDSCH; the sending module 802 is used to send the third PUSCH to the network device; the processing module 803 is used to demodulate and decode the data carried in the third PDSCH, and the data carried in the third PUSCH The data is encoded and modulated.
  • the sending module 802 is used to send the third PDSCH to the terminal device;
  • the receiving module 801 is used to receive the third PUSCH from the terminal device
  • the third PUSCH is associated with the third PDSCH;
  • the processing module 803 is configured to encode and modulate the data carried in the third PDSCH, and demodulate and decode the data carried in the third PUSCH.
  • the communication device 80 is presented in the form of dividing various functional modules in an integrated manner.
  • the "module” here can refer to a specific circuit, a processor and memory that executes one or more software or firmware programs, an integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
  • the communication device 80 may take the form of the terminal device 40 or the network device 30 shown in FIG. 2.
  • the processor 401 in the terminal device 40 shown in FIG. The computer executes the instructions to make the communication device 80 execute the information transmission method in the above method embodiment; when the communication device 80 is used to implement the function of the network device in the method embodiment shown in FIG. 4, FIG. 6, or FIG. 7, FIG. 2
  • the processor 301 in the network device 30 shown can call the computer-executable instructions stored in the memory 302, so that the communication device 80 executes the information transmission method in the foregoing method embodiment.
  • the communication device 80 provided in this embodiment can perform the above-mentioned information transmission method, the technical effects that can be obtained can refer to the above-mentioned method embodiment, which will not be repeated here.
  • the communication device 90 includes a processor 901 and an interface circuit 902.
  • the processor 901 and the interface circuit 902 are coupled to each other.
  • the interface circuit 902 may be a transceiver or an input/output interface.
  • the communication device 90 may further include a memory 903 for storing instructions executed by the processor 901 or storing input data required by the processor 901 to run the instructions or storing data generated after the processor 901 runs the instructions.
  • the processor 901 is used to implement the functions of the above-mentioned processing module 803, and the interface circuit 902 is used to implement the functions of the above-mentioned receiving module 801 and sending module 802. .
  • the terminal device chip When the foregoing communication device is a chip applied to a terminal device, the terminal device chip implements the function of the terminal device in the foregoing method embodiment.
  • the terminal device chip receives information from other modules in the terminal device (such as a radio frequency module or antenna), and the information is sent by the network device to the terminal device; or, the terminal device chip sends information to other modules in the terminal device (such as a radio frequency module or antenna).
  • the antenna sends information, which is sent by the terminal device to the network device.
  • the network device chip implements the function of the network device in the foregoing method embodiment.
  • the network device chip receives information from other modules in the network device (such as radio frequency modules or antennas), and the information is sent by the terminal device to the network device; or, the network device chip sends information to other modules in the network device (such as radio frequency modules or antennas).
  • the antenna sends information, which is sent by the network device to the terminal device.
  • an embodiment of the present application further provides a communication device, which includes a processor, configured to implement the method in any of the foregoing method embodiments.
  • the communication device further includes a memory.
  • the memory is used to store necessary program instructions and data, and the processor can call the program code stored in the memory to instruct the communication device to execute the method in any of the foregoing method embodiments.
  • the memory may not be in the communication device.
  • the communication device may be a chip system, and the chip system may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in the embodiment of the present application.
  • the method steps in the embodiments of the present application can be implemented by hardware, and can also be implemented by a processor executing software instructions.
  • Software instructions can be composed of corresponding software modules, which can be stored in random access memory (RAM), flash memory, read-only memory (ROM), programmable read-only memory (programmable ROM) , PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically erasable programmable read-only memory (electrically EPROM, EEPROM), register, hard disk, mobile hard disk, CD-ROM or well-known in the art Any other form of storage medium.
  • An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium.
  • the storage medium may also be an integral part of the processor.
  • the processor and the storage medium may be located in the ASIC.
  • the ASIC can be located in a network device or a terminal device.
  • the processor and the storage medium may also exist as discrete components in the network device or the terminal device.
  • the computer program product includes one or more computer programs or instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, network equipment, user equipment, or other programmable devices.
  • the computer program or instruction may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer program or instruction may be downloaded from a website, computer, The server or data center transmits to another website site, computer, server or data center through wired or wireless means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that integrates one or more available media.
  • the usable medium may be a magnetic medium, such as a floppy disk, a hard disk, and a magnetic tape; it may also be an optical medium, such as a digital video disc (digital video disc, DVD); and it may also be a semiconductor medium, such as a solid state drive (solid state drive). , SSD).
  • A/B can mean A or B; the "and/or” in this application is only It is an association relationship that describes associated objects. It means that there can be three relationships, for example, A and/or B. It can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B It can be singular or plural.
  • At least one item (a) or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
  • at least one item (a) of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where "-" means that the associated objects before and after are a kind of "and”
  • AB can represent A and B, and a, b, and c can be single or multiple.
  • words such as “first” and “second” are used to distinguish the same or similar items with substantially the same function and effect. Those skilled in the art can understand that words such as “first” and “second” do not limit the quantity and order of execution, and words such as “first” and “second” do not limit the difference.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Les modes de réalisation de la présente demande se rapportent au domaine des communications sans fil, et concernent un procédé, un appareil et un système de transmission d'informations, qui peuvent réduire un retard de transmission. Un dispositif terminal peut déterminer différents retards de rétroaction HARQ-ACK selon différents scénarios. Ainsi, dans certains scénarios, par exemple, dans la planification semi-persistante de PDSCH, pour un PDSCH qui n'est pas transmis pour la première fois ou un PDSCH dont le HARQ-ACK est renvoyé séparément, un dispositif terminal peut renvoyer au préalable des informations HARQ-ACK, ce qui permet de réduire un retard de transmission de données.
PCT/CN2021/083605 2020-03-31 2021-03-29 Procédé, appareil et système de transmission d'informations Ceased WO2021197270A1 (fr)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN115514891A (zh) * 2022-09-09 2022-12-23 维沃移动通信有限公司 图像处理方法及装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023077355A1 (fr) * 2021-11-04 2023-05-11 富士通株式会社 Procédé, appareil et système de génération d'informations de rétroaction
CN116193615A (zh) * 2021-11-25 2023-05-30 上海移远通信技术股份有限公司 一种用于无线通信的节点中的方法和装置
CN116996191A (zh) * 2022-04-24 2023-11-03 华为技术有限公司 一种通信方法和装置
WO2024077497A1 (fr) * 2022-10-11 2024-04-18 北京小米移动软件有限公司 Procédé et dispositif de rétroaction pour désactivation de planification semi-persistante, et support de stockage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109391450A (zh) * 2017-08-11 2019-02-26 华为技术有限公司 一种数据传输方法和网络设备以及终端设备
CN110475359A (zh) * 2018-05-10 2019-11-19 北京三星通信技术研究有限公司 传输上行控制信息的方法及设备
US20200053710A1 (en) * 2018-08-09 2020-02-13 Lenovo (Singapore) Pte. Ltd. Uplink transmission power allocation
CN110831200A (zh) * 2018-08-07 2020-02-21 财团法人资讯工业策进会 用于移动通信系统的用户装置及基站

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109391450A (zh) * 2017-08-11 2019-02-26 华为技术有限公司 一种数据传输方法和网络设备以及终端设备
CN110475359A (zh) * 2018-05-10 2019-11-19 北京三星通信技术研究有限公司 传输上行控制信息的方法及设备
CN110831200A (zh) * 2018-08-07 2020-02-21 财团法人资讯工业策进会 用于移动通信系统的用户装置及基站
US20200053710A1 (en) * 2018-08-09 2020-02-13 Lenovo (Singapore) Pte. Ltd. Uplink transmission power allocation

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CAICT: "Enhancements to UCI to support URLLC", 3GPP DRAFT; R1-1813507, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Spokane, USA; 20181112 - 20181116, 2 November 2018 (2018-11-02), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, pages 1 - 4, XP051479846 *
ERICSSON: "Enhancements to Uplink and Downlink Physical Channels for NR URLLC", 3GPP DRAFT; R1-1808147, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, 11 August 2018 (2018-08-11), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, pages 1 - 8, XP051515549 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN115514891A (zh) * 2022-09-09 2022-12-23 维沃移动通信有限公司 图像处理方法及装置

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