WO2021197270A1

WO2021197270A1 - Information transmission method, apparatus and system

Info

Publication number: WO2021197270A1
Application number: PCT/CN2021/083605
Authority: WO
Inventors: 李胜钰; 官磊; 马蕊香; 李锐杰
Original assignee: 华为技术有限公司
Priority date: 2020-03-31
Filing date: 2021-03-29
Publication date: 2021-10-07
Also published as: CN113472489A

Abstract

The embodiments of the present application relate to the field of wireless communications, and provide an information transmission method, apparatus and system, which can reduce a transmission delay. A terminal device may determine different HARQ-ACK feedback delays according to different scenarios. Thus, in certain scenarios, for example, in semi-persistent scheduling PDSCHs, for a PDSCH that is not transmitted for the first time or a PDSCH of which the HARQ-ACK is separately fed back, a terminal device may pre-feed back HARQ-ACK information, thereby reducing a data transmission delay.

Description

Information transmission method, device and system

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office, the application number is 202010246677.9, and the application name is "information transmission method, device and system" on March 31, 2020, the entire content of which is incorporated into this application by reference middle.

Technical field

This application relates to the field of wireless communication, and in particular to information transmission methods, devices and systems.

Background technique

Ultra-reliable and low latency communications (URLLC) is a service supported by the fifth generation (5th Generation, 5G) communication system.

Generally, communication systems need to sacrifice spectrum efficiency to meet the high reliability and low latency requirements of URLLC services, that is, provide sufficient redundancy guarantee by allocating more resources. Among them, the hybrid automatic repeat request (HARQ) mechanism is an effective method to meet reliability requirements while improving spectrum efficiency.

However, 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. Based on the existing terminal processing capabilities, base station processing capabilities, and transmission mechanisms, it is difficult to meet Very low latency requirements for this type of application.

Summary of the invention

The embodiments of the present application provide an information transmission method, device, and system, which can reduce transmission delay.

In order to achieve the foregoing objectives, the following technical solutions are adopted in the embodiments of this application:

In the first aspect, 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. Wherein, 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. 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.

Based on this solution, 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. When the PDSCH is processed in advance, 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. On the other hand, when the first condition is met, 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.

In a possible design, 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.

Based on this possible design, 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.

In the second aspect, 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. Wherein, 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. 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. Among them, the technical effects brought about by the second aspect can be referred to the technical effects brought about by the above-mentioned first aspect.

In a possible design, 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.

With reference to the first and second aspects described above, in a possible design, 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.

Based on this possible design, 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.

With reference to the first aspect and the second aspect, in a possible design, 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.

Based on this possible design, 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. When 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.

Combining the foregoing first and second aspects, in a possible design, the foregoing first information further indicates a second PUCCH resource, and the second PUCCH resource is used to carry HARQ-ACK information of the second PDSCH, and 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.

Based on this possible design, 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.

In combination with the first aspect and the second aspect, in a possible design, the first condition may include: the HARQ-ACK feedback of the first PDSCH is a separate feedback.

Based on this possible design, since 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.

With reference to the first and second aspects described above, in a possible design, the first condition may include: the PUCCH format associated with the first PUCCH resource is format 0 or format 1.

Based on this possible design, when 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, it can be understood that the first PUCCH resource can only carry the HARQ of the first PDSCH -ACK information, or it can be understood that 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.

With reference to the above-mentioned first aspect and second aspect, in a possible design, the first condition may include: the PDSCH HARQ-ACK codebook is not configured.

Based on this possible design, 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.

Combining the foregoing first aspect and second aspect, in a possible design, the foregoing first threshold satisfies the following first formula:

T ₁ =(N ₁ +d _1,1 )(2048+144)*k*T _c *2 ^-μ1

Among them, 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, μ1 is the number of the first subcarrier interval, the first PDSCH is transmitted in the second communication system, and 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.

Combining the foregoing first aspect and second aspect, in a possible design, the foregoing second value is the PDSCH minimum processing delay specified in Release 15 or Release 16 of the 3rd Generation Partnership Project 3GPP.

In the third aspect, 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.

Based on this solution, on the one hand, since 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.

In a possible design, 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.

In the fourth aspect, 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. When the second condition is met, the second threshold The value is a third value. When the second condition is not met, the second threshold value is a fourth value, and the third value is smaller than the fourth value. Among them, the technical effects brought about by the fourth aspect can be referred to the technical effects brought about by the above-mentioned third aspect.

In a possible design, 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.

With reference to the third aspect and the fourth aspect, in a possible design, the second condition may include: the transport block size TBS of the first PUSCH is a preset value.

Based on this possible design, since 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.

In combination with the third aspect and the fourth aspect, in a possible design, 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.

Based on this possible design, when the HARQ process of the first PUSCH is the preset process, 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.

In combination with the third aspect and the fourth aspect, in a possible design, 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.

Based on this possible design, 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.

With reference to the foregoing third aspect and fourth aspect, in a possible design, the second condition may include: the data sent on the first PUSCH is retransmitted data of the first uplink data.

Based on this possible design, 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.

In combination with the third aspect and the fourth aspect, in a possible design, the MCS used by the first PUSCH is the same as the MCS used for the initial transmission of the first uplink data.

Based on this possible design, when 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.

Combining the foregoing third and fourth aspects, in a possible design, the foregoing second threshold satisfies the following second formula:

T ₂ ＝max((N ₂ +d _2,1 )(2048+144)*k*T _c *2 ^-μ2 ,d _2,2 )

Among them, 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, and 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, μ2 is the number of the second subcarrier interval, the first PUSCH is transmitted in the second communication system, and 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.

In combination with the third aspect and the fourth aspect, in a possible design, the fourth value is the minimum PUSCH transmission preparation delay specified in Release 15 or Release 16 of the 3rd Generation Partnership Project 3GPP.

In the fifth aspect, 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. PUSCH, where 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 sending the PUSCH associated with the PDSCH .

In this solution, the minimum processing delay when PDSCH and PUSCH are associated with transmission is provided, and the processing flow of PDSCH and PUSCH associated transmission can be improved.

In the sixth aspect, 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. Wherein, 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 sending the PUSCH associated with the PDSCH. Among them, the technical effects brought about by the fourth aspect can be referred to the technical effects brought about by the above-mentioned third aspect.

With reference to the above fifth and sixth aspects, in a possible design, 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.

With reference to the above fifth and sixth aspects, in a possible design, the first DCI includes time domain resource indication information of the third PDSCH and time domain resource indication information of the third PUSCH.

Combining the above fifth and sixth aspects, in a possible design, 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.

With reference to the above fifth aspect and sixth aspect, in a possible design, the third PUSCH is associated with the third PDSCH, including: the third PUSCH is scheduled by the third PDSCH.

With reference to the above fifth aspect and sixth aspect, in a possible design, the third PDSCH includes time domain resource indication information of the third PUSCH.

Combining the above fifth and sixth aspects, in a possible design, 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.

With reference to the fifth and sixth aspects described above, in a possible design, the period of the SPS PDSCH is the same as the period of the CG PUSCH.

With reference to the fifth aspect and the sixth aspect, in a possible design, 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.

In a seventh aspect, a communication device is provided 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. Or the network equipment in the fourth aspect or the sixth aspect, or a device including the above-mentioned network equipment, or a device included in the above-mentioned network equipment. 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.

In an eighth aspect, a communication device is provided, 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. Or the network equipment in the fourth aspect or the sixth aspect, or a device including the above-mentioned network equipment, or a device included in the above-mentioned network equipment.

In a ninth aspect, a communication device is provided, 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. Or the network equipment in the fourth aspect or the sixth aspect, or a device including the above-mentioned network equipment, or a device included in the above-mentioned network equipment.

In a tenth aspect, a communication device is provided, 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.

In an eleventh aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores a computer program or instruction. When the computer program or instruction is executed by a communication device, the communication device can execute any of the above The method described in the aspect.

In a twelfth aspect, a computer program product containing instructions is provided. 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.

In a thirteenth aspect, a communication device (for example, the communication device may be a chip or a chip system) is provided. The communication device includes a processor for implementing the functions involved in any of the foregoing aspects. In a possible design, the communication device further includes a memory for storing necessary program instructions and data. When the communication device is a chip system, it may be composed of a chip, or may include a chip and other discrete devices.

Among them, the technical effects brought by any one of the seventh aspect to the thirteenth aspect can be seen in the above-mentioned first aspect, second aspect, third aspect, fourth aspect, fifth aspect, or sixth aspect. The technical effect brought by the design method will not be repeated here.

In a fourteenth aspect, a communication system is provided, 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. .

Description of the drawings

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.

Detailed ways

In order to facilitate the understanding of the technical solutions of the embodiments of the present application, first, a brief introduction of related technologies or terms in the present application is given as follows.

First, the HARQ mechanism:

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. 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.

Second, the minimum processing delay of physical downlink shared channel (PDSCH):

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 ^-μ

Among them, 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. Exemplarily, in 3GPP R15/R16, _{the value of N 1} may be as shown in Table 1 below.

Table 1

Among them, 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 The number is related.

k is the ratio of the minimum sampling interval of the first communication system to the minimum sampling interval of the second communication system. Wherein, the maximum subcarrier spacing of the first communication system is 15 kilohertz (kilohertz, kHz), and the maximum number of subcarriers is 2048. Illustratively, the first communication system may be a long term evolution (LTE) system, for example. ; 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. Wherein, the above-mentioned PDSCH is transmitted in the second communication system.

T _c is the minimum sampling interval of the second communication system, which is determined by the maximum sub-carrier interval and the maximum number of sub-carriers of the second communication system, that is, T _c = 1/(Δf _max *N _f ), where Δf _max is the second The maximum sub-carrier spacing _{of the communication system, and N f} is the maximum number of sub-carriers of the second communication system.

μ 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. In the PDSCH minimum processing delay, μ 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.

Table 2

子载波间隔编号Subcarrier interval number		子载波间隔Subcarrier spacing
00	15kHz15kHz
11	30kHz30kHz
22	60kHz60kHz
33	120kHz120kHz
44	240kHz240kHz

For the specific description of the relevant parameters in the above formula A, please refer to the relevant descriptions in 3GPP technical specification (technical specification, TS) 38.214 V16.0.0 section 5.3 and 3GPP TS 38.211 V16.0.0 section 4.1.

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.

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.

Third, the minimum transmission preparation delay of the physical uplink shared channel (PUSCH):

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.

According to 3GPP R15/R16, 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 ^-μ ,d _2,2 )

T _proc,2 is the minimum processing delay of PUSCH, and N ₂ is the number of second symbols, and its value can be related to terminal processing capability and subcarrier spacing. Exemplarily, in 3GPP R15/R16, _{the value of N 2} may be as shown in Table 3 below.

table 3

子载波间隔编号Subcarrier interval number	终端处理能力#1Terminal processing capability #1	终端处理能力#2Terminal processing capability #2
00	1010	55
11	1212	5.55.5
22	23twenty three	11(频段1)11 (band 1)
33	3636	//

Among them, 11 (frequency band 1) 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.

For the meaning of k and T _c , please refer to the relevant description in the PDSCH minimum processing delay. 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).

μ 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. In the minimum PUSCH transmission preparation delay, μ 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.

For the specific description of the relevant parameters in the above formula B, please refer to the relevant descriptions in 3GPP technical specification (technical specification, TS) 38.214 V16.0.0 section 6.4 and 3GPP TS 38.211 V16.0.0 section 4.1.

The above-mentioned minimum processing delay of PUSCH specified by 3GPP R15/R16 considers the delays of the following three links, or in other words, 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.

Fourth, semi-persistent scheduling (SPS) PDSCH:

SPS PDSCH refers to the PDSCH configured by network equipment for terminal equipment through SPS PDSCH configuration information. Among them, the SPS PDSCH configuration information may indicate information such as the period of the SPS PDSCH and the number of HARQ processes.

After the network device configures the SPS PDSCH to the terminal device, 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. In addition, one transmission of SPS PDSCH corresponds to one transmission occasion, and this transmission occasion may be referred to as an SPS PDSCH occasion (occasion).

It should be noted that in the embodiment of the present application, 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.

It should be noted that the 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.

Fifth, configure authorization (configured grant, CG) PUSCH:

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).

There are two types of configuration authorization for CG PUSCH:

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.

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 technical solutions of the embodiments of the present application can be applied to various communication systems. For example, 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. 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.

In addition, the network architecture and business scenarios described in the embodiments of this application are intended to illustrate the technical solutions of the embodiments of this application more clearly, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. Those of ordinary skill in the art will know that With the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.

As shown in FIG. 1, a communication system 10 provided by an embodiment of this application. The communication system 10 includes at least one network device 30 and one or more terminal devices 40 connected to the network device 30. Optionally, different terminal devices 40 can communicate with each other.

Taking the communication between the network device 30 shown in FIG. 1 and any terminal device 40 as an example, in the embodiment of the present application, 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. When the first condition is met, the value of the first threshold is the first value. When the first threshold is not met, When conditions are met, the value of the first threshold is the second value, and the first value is less than the second value.

Optionally, 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. For example, 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. .

Optionally, 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. Wherein, 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 . In a specific implementation, as an embodiment, 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. Specifically, 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. For example, 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.

The input device 405 communicates with the processor 401, and can accept user input in a variety of ways. For example, 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. Optionally, the network device 30 may further include at least one memory. In FIG. 2, including a memory 302 is taken as an example for description. Among them, 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. In addition, for related descriptions of the processor 301, the memory 302, and the transceiver 303, reference may be made to the description of the processor 401, the memory 402, and the transceiver 403 in the terminal device 40.

With reference to the schematic structural diagram of the terminal device 40 shown in FIG. 2, exemplarily, FIG. 3 is a specific structural form of the terminal device 40 provided in an embodiment of the application.

Among them, in some embodiments, the functions of the processor 401 in FIG. 2 may be implemented by the processor 110 in FIG. 3.

In some embodiments, 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. In some embodiments, at least part of the functional modules of the mobile communication module 150 may be provided in the processor 110. In some embodiments, 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.

In some embodiments, 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.

In some embodiments, the function of the output device 404 in FIG. 2 may be implemented by the display screen 194 in FIG. 3. Among them, the display screen 194 is used to display images, videos, and so on. The display screen 194 includes a display panel.

In some embodiments, 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.

In some embodiments, as shown 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.

It can be understood that the structure shown in FIG. 3 does not constitute a specific limitation on the terminal device 40. For example, in other embodiments of the present application, 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 provided by the embodiment of the present application will be described below in conjunction with FIG. 1 to FIG. 3.

It should be noted that the name of the message (or information) and the name of the parameter in the message (or information) in the following embodiments of the present application are just examples, and other names may also be used in specific implementation. There is no specific limitation.

As shown in FIG. 4, an information transmission method provided by an embodiment of this application, the information transmission method includes the following steps:

S401: The network device sends the first PDSCH to the terminal device. Correspondingly, the terminal device receives the first PDSCH from the network device.

S402: The network device sends the first information to the terminal device. Correspondingly, 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.

Wherein, 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. When the first condition is met, the first threshold The value of 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 less than the second value. The embodiment of the present application will be described as an example of satisfying the first condition, and the first condition will be described in detail in subsequent embodiments.

Optionally, the second value may be the minimum PDSCH processing delay specified in 3GPP R15 or R16.

It is understandable that there is no inevitable sequence between step S401 and step S402. 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.

S403: The terminal device sends HARQ-ACK information of the first PDSCH to the network device on the first PUCCH resource. Correspondingly, the network device receives the HARQ-ACK information of the first PDSCH from the terminal device on the first PUCCH resource.

Optionally, after receiving the first PDSCH and the first information, 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. That is, 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.

Optionally, 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. When 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.

In different implementation scenarios of the embodiments of the present application, the first condition may also be different.

In a possible implementation manner, 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.

Among them, 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.

Based on this possible implementation, 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.

Optionally, in this implementation manner, 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. Among them, the time window can correspond to one or more consecutive symbols in the time domain. For example, one possible implementation is that the PDCCH monitoring timing configuration indication sent by the network device to the terminal device: the value of the bit (or element) corresponding to the symbol in the time window of the first PDSCH in the monitoring timing mode is 0.

It is understandable that for terminal equipment, within a period of time, 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.

Optionally, 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 The or multiple items may be preset values, and the preset values may be configured by the network device to the terminal device.

Exemplarily, there may be multiple situations in the above-mentioned time window:

Case 1: The time window is the time unit where the first PDSCH is located.

That is to say, within the time unit where the first PDSCH is located, the network device does not configure the PDCCH monitoring opportunity for the terminal device.

Taking the time unit as a time slot, a time slot includes 14 symbols as an example. As shown in Figure 5, 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.

Case 2: The time window is the symbol occupied by the first PDSCH.

That is, within the symbol occupied by the first PDSCH, the network device does not configure the PDCCH monitoring opportunity for the terminal device. As shown in FIG. 5, the time domain position of the first PDSCH is symbol 3 to symbol 5 in slot n+1. In the symbol 3 to symbol 5 in time slot n+1, the network equipment does not configure the PDCCH monitoring opportunity for the terminal device. In the time slot n+1, symbols other than symbol 3 to symbol 5 may be configured for PDCCH monitoring Timing may not be configured.

Based on this solution, 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.

Optionally, the first information also indicates a second PUCCH resource, and 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. Based on this solution, 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.

Optionally, the first information may indicate the first PUCCH resource and the second PUCCH resource in the following four ways.

Manner 1: 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. Interval between units; 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.

It can be understood that 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.

It can be understood that 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.

Optionally, 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. In this case, the first timing offset value The offset value and the second timing offset value can be represented by the same parameter.

Manner 2: The first information includes first PUCCH resource indication information, second PUCCH resource indication information, timing offset value, and first offset value.

Wherein, the timing offset value may be the first timing offset value or the second timing offset value. When the timing offset value is the first 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.

Optionally, 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). Symbols occupied within the time unit, other transmission parameters, etc.), 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.

Manner 3: 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.

When the PUCCH resource indication information is the first 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. Exemplarily, 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. In addition, the time domain length of the second PUCCH resource and the first PUCCH resource may be the same, and other transmission parameters may also be the same.

When the PUCCH resource indication information is the second PUCCH resource indication information, 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. Exemplarily, 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. In addition, 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.

Optionally, 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.

Manner 4: The first information includes a timing offset value, PUCCH resource indication information, and a third offset value.

Wherein, the timing offset value may be the first timing offset value, correspondingly, the PUCCH resource indication information is the first PUCCH resource indication information, and 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.

Alternatively, the timing offset value may be the second timing offset value, correspondingly, the PUCCH resource indication information is the second PUCCH resource indication information, and 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.

Corresponding to the above four ways, the network device can also indicate the first PUCCH resource and the second PUCCH resource to the terminal device in the following four ways.

Manner 1: 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. For example, the configuration information of the SPS PDSCH includes the first PUCCH resource indication information and the second PUCCH resource indication information, and the DCI for activating the SPS PDSCH configuration includes the first timing offset value and the second timing offset value.

Manner 2: 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. For example, 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, and the DCI for activating the SPS PDSCH configuration includes the timing offset value.

Manner 3: 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. For example, the configuration information of the SPS PDSCH includes PUCCH resource indication information and the second offset value, and the DCI for activating the SPS PDSCH configuration includes the first timing offset value and the second timing offset value.

Manner 4: 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. For example, the configuration information of the SPS PDSCH includes PUCCH resource indication information and the third offset value, and the DCI for activating the SPS PDSCH configuration includes the timing offset value.

In another possible implementation manner, the first condition may include: the HARQ-ACK feedback of the first PDSCH is a separate feedback.

Wherein, 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.

Based on this possible implementation, since 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.

Optionally, in this possible implementation manner, the information transmission method may further include: the network device sends the second information to the terminal device. Correspondingly, the terminal device receives the second information from the network device. Wherein, the second information indicates that the HARQ-ACK feedback of the first PDSCH is independent feedback.

Optionally, the second information may be included in the DCI for scheduling the first PDSCH. For example, 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.

Optionally, 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. Whether 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.

Alternatively, 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.

Exemplarily, when the difference indicated by the value of the timing offset value bit field is a preset difference value, the timing offset value bit field may indirectly indicate that the HARQ-ACK feedback of the first PDSCH is independent feedback. Taking the length of the timing offset value bit field as 3 bits, the value of the timing offset value bit field is "000", and 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.

Or, exemplarily, 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. Taking the length of the timing offset value bit field as 3 bits, the value of the timing offset value bit field is "000", and 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").

Optionally, after receiving the second information, the terminal device may perform HARQ-ACK feedback of the first PDSCH according to the second information, thereby reducing PDSCH processing time.

In another possible implementation manner, the first condition may include: the PUCCH format associated with the first PUCCH resource is format 0 or format 1.

It is understandable that when the PUCCH format associated with the PUCCH resource is format 0 or format 1, only 1 bit of information is allowed to be carried on the PUCCH resource. Therefore, 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.

In another possible implementation manner, 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.

Based on this possible implementation, 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.

Optionally, in this embodiment of the application, the first threshold may satisfy the following first formula:

T ₁ =(N ₁ +d _1,1 )(2048+144)*k*T _c *2 ^-μ1

Among them, 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, μ1 is the number of the first subcarrier interval, and 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. In particular, when the first PDSCH is a PDSCH that is not transmitted for the first time in the SPS PDSCH, 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. For the specific description of the parameters in the first formula, please refer to the description of the relevant parameters in the formula A above.

Optionally, in this embodiment of the present application, 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. An added value.

Exemplarily, in the terminal processing capability #2, the value of the number of first symbols corresponding to the first value may be as shown in Table 4 below.

Table 4

Among them, 6 or 7 (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.

Exemplarily, under terminal processing capability #2, the first additional value corresponding to the first value may be zero.

It should be noted that according to the above first formula, the value of the first threshold is related to k, T _c, and μ1. Therefore, the first value _{may be different when k, T c,} and μ1 take different values. Similarly, the second value _{may be different when k, T c} , and μ1 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 μ1 are the same, the first value is smaller than the second value.

As shown in FIG. 6, another information transmission method provided by an embodiment of this application, the information transmission method includes the following steps:

S601. The network device sends scheduling information to the terminal device. Correspondingly, the terminal device receives the scheduling information from the network device.

Wherein, 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. When the second condition is met, the second threshold The value of is the third value. When the second condition is not met, the value of the second threshold is the fourth value, and the third value is less than the fourth value. The embodiment of the present application will be described as an example of satisfying the second condition, and the second condition will be described in detail in subsequent embodiments.

Optionally, the fourth value may be the minimum PUSCH transmission preparation delay specified in 3GPP R15/R16.

S602: The terminal device sends the first PUSCH to the network device. Correspondingly, the network device receives the first PUSCH from the terminal device.

Optionally, after receiving the scheduling information, 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. At the second threshold, the first PUSCH is sent. When the time interval is less than the second threshold, 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.

Optionally, 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. When the timer expires, the terminal device sends the first PUSCH to the network device.

In different implementation scenarios of the embodiments of the present application, the second condition may also be different.

In a possible implementation manner, the second condition may include: the data sent on the first PUSCH is retransmitted data of the first uplink data.

It is understandable that because the retransmission is the same uplink data as the initial transmission, 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 the first uplink data is retransmitted (ie When transmitting the first PUSCH), 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.

In this possible implementation, when the second condition is met, the third value may be referred to as the third value #1.

In another possible implementation manner, 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.

It is understandable that after the MAC PDU assembly is completed, encoding, rate matching, and modulation can be further performed. When performing rate matching, the redundancy version used needs to be determined, and the modulation method used needs to be determined during modulation.

In this possible implementation, there may be the following three situations:

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. In the embodiment of the present application, the first uplink data transmitted on the second PUSCH is the initial transmission data.

That is, 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.

In this case, optionally, 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.

In other words, the retransmission of the first uplink data is the same as the MCS used for the initial transmission.

Optionally, 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. For example, 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 For example, the redundancy version mode configured by the higher layer is "0231", the redundancy version used by the second PUSCH is "0", and M is 2, that is, the first PUSCH is the second retransmission of the first uplink data, then The terminal device may determine that the redundancy version used by the first PUSCH is "3".

In this case, optionally, when the terminal device first transmits the first uplink data, after encoding the MAC PDU corresponding to the first uplink data, 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.

Optionally, in this case, 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.

Optionally, 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. When the retransmission schedule is received, the saved coded and modulated data can be sent immediately, which can reduce the transmission delay.

Wherein, in this possible implementation manner, when the second condition is met, the third value may be referred to as the third value #2.

Optionally, 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.

In another possible implementation manner, the second condition may include: the transmission block size (transmission block size, TBS) of the first PUSCH is a preset value.

Optionally, before sending the scheduling information, the network device 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.

Optionally, after determining the TBS of the PUSCH to be sent, when data arrives at the MAC layer of the terminal device (for example, when the MAC layer receives a radio link control (RLC) PDU, 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.

Based on this possible implementation, since 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.

Optionally, in this possible implementation manner, 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. For example, 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. Correspondingly, 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. In this scenario, 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.

Based on this solution, when the HARQ process of the first PUSCH is a preset process, 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.

Optionally, in this possible implementation manner, 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.

Based on this solution, 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.

Optionally, 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. After receiving the indication, 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.

Optionally, 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.

Optionally, in this 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 ^-μ2 ,d _2,2 )

Among them, 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, and 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, a first PUSCH transmission in a second communication system. 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. For the specific description of the parameters in the second formula, please refer to the related description of formula B above.

Optionally, at least one of the following three conditions is met: the number of second symbols corresponding to the third value is less than the number of second symbols corresponding to the fourth value, and 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.

It should be noted that, according to the above second formula, the value of the second threshold is related to k, T _c, and μ2. Therefore, the third value _{may be different when k, T c,} and μ2 take different values. Similarly, the fourth value _{may be different when k, T c,} and μ2 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 μ2 are the same, the third value is smaller than the fourth value.

In addition, 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:

S701. The network device sends the third PDSCH to the terminal device. Correspondingly, the terminal device receives the third PDSCH from the network device.

S702. The terminal device determines the PUSCH associated with the third PDSCH.

In the embodiments of the present application, 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.

It should be noted that 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 method for associating the third PUSCH with the third PDSCH will be described in detail in subsequent embodiments.

S703: The terminal device sends the third PUSCH to the network device. Correspondingly, the network device receives the third PUSCH from the terminal device.

In different implementation scenarios of the embodiments of the present application, the third PUSCH and the third PDSCH may have different association modes.

In a possible implementation manner, 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.

Optionally, in this implementation manner, before step S701, the information transmission method provided in the embodiment of the present application may further include:

S700. The network device sends the first DCI to the terminal device. Correspondingly, the terminal device receives the first DCI from the network device.

Wherein, the first DCI is used to schedule the third PDSCH and the third PUSCH.

Optionally, in this case, the foregoing step S701 may be: the terminal device receives the third PDSCH from the network device according to the first DCI; the foregoing step S702 may be: the terminal device determines the third PUSCH according to the first DCI, that is, the first The PUSCH scheduled by DCI is used as the third PUSCH.

Optionally, the first DCI may schedule the third PDSCH and the third PUSCH in the following two ways:

Manner 1: 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.

Optionally, 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. For example, 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.

Optionally, 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. For example, 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.

Manner 2: 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.

Optionally, 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.

Optionally, the location information may also indicate the frequency domain location information of the third PUSCH. For example, 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.

In another possible implementation manner, the association of the third PUSCH with the third PDSCH may include: the third PUSCH is scheduled by the third PDSCH.

Exemplarily, the scheduling of the third PUSCH by the third PDSCH may be: the third PDSCH carries the scheduling information of the third PUSCH.

Optionally, in this implementation manner, the foregoing step S702 may be: the terminal device determines the third PUSCH according to the scheduling information carried by the third PDSCH.

Optionally, 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.

Optionally, 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. For example, 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.

Optionally, the third PDSCH may also include frequency domain resource indication information of the third PUSCH. For example, 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.

In another possible implementation manner, 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. Correspondingly, 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. That is, 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.

Optionally, 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.

Optionally, 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.

Optionally, in the foregoing various implementation manners, 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. For example, for many control applications in smart factories, 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.

Optionally, in this embodiment of the application, 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.

Optionally, 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.

Optionally, 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. For example, 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. When the subcarrier interval used by the third PDSCH is 30 kHz, the second offset value is 1 or 2, which is not specifically limited in the embodiment of the present application. Exemplarily, the value of the number of third symbols may be as shown in Table 5 below:

table 5

Wherein, 12 or 13 (frequency band 1) 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.

It is understandable that in the embodiments of the present application, 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.

It can be understood that the various numerical numbers involved in the embodiments of the present application are only for easy distinction for description, and are not used to limit the scope of the embodiments of the present application. The size of the sequence number of the above processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic.

It can be understood that, in the above embodiments, 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.

The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of interaction between various network elements. Correspondingly, 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.

It can be understood that, in order to realize the above-mentioned functions, the communication device includes hardware structures and/or software modules corresponding to each function. Those skilled in the art should easily realize that in combination with the units and algorithm steps of the examples described in the embodiments disclosed herein, 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. In the embodiment of the present application, 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. For example, 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.

As shown in FIG. 8, the communication device 80 includes a receiving module 801 and a sending module 802. Optionally, 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.

When the communication device 80 is used to implement the function of the terminal device in the method embodiment shown in FIG. 4: 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.

Optionally, 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.

When the communication device 80 is used to implement the function of the network device in the method embodiment shown in FIG. 4: 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.

Optionally, 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.

When the communication device 80 is used to implement the function of the terminal device in the method embodiment shown in FIG. 6: 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.

Optionally, 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.

When the communication device 80 is used to implement the function of the network device in the method embodiment shown in FIG. 6: 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.

Optionally, 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.

When the communication device 80 is used to implement the function of the terminal device in the method embodiment shown in FIG. 7: 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.

When the communication device 80 is used to implement the function of the network device in the method embodiment shown in FIG. 7: 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.

Among them, all relevant content of the steps involved in the above method embodiments can be cited in the functional description of the corresponding functional module, which will not be repeated here.

In this embodiment, 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. In a simple embodiment, those skilled in the art can imagine that the communication device 80 may take the form of the terminal device 40 or the network device 30 shown in FIG. 2.

For example, when the communication device 80 is used to implement the function of the terminal device in the method embodiment shown in FIG. 4, FIG. 6, or FIG. 7, 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.

Since 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.

As shown in FIG. 9, 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. It can be understood that the interface circuit 902 may be a transceiver or an input/output interface. Optionally, 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.

When the communication device 90 is used to implement the method shown in FIG. 4, FIG. 6 or FIG. 7, 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. .

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.

When the foregoing communication device is a chip applied to a 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.

Optionally, 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. In a possible design, 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. Of course, 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. Of course, the storage medium may also be an integral part of the processor. The processor and the storage medium may be located in the ASIC. In addition, the ASIC can be located in a network device or a terminal device. Of course, the processor and the storage medium may also exist as discrete components in the network device or the terminal device.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer programs or instructions. When the computer program or instruction is loaded and executed on the computer, the process or function described in the embodiment of the present application is executed in whole or in part. 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. For example, 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).

In the various embodiments of this application, if there are no special instructions and logical conflicts, the terms and/or descriptions between different embodiments are consistent and can be mutually cited. The technical features in different embodiments are based on their inherent Logical relationships can be combined to form new embodiments.

In the description of this application, unless otherwise specified, "/" means that the associated objects before and after are in an "or" relationship. For example, 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.

In the description of this application, "a" or "one" does not exclude the case of a plurality, and "a plurality" means two or more than two. "The following 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). For example, 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" For example, AB can represent A and B, and a, b, and c can be single or multiple.

In addition, in order to facilitate a clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, 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.

Claims

An information transmission method, characterized in that the method includes:

Receiving a first physical downlink shared channel PDSCH and first information from a network device, the first information indicating a first physical uplink control channel PUCCH resource;

The HARQ-ACK information of the first PDSCH hybrid automatic repeat request confirmation is sent to the network device on the first PUCCH resource, where the end symbol of the first PDSCH is the same as the start of the first PUCCH resource. The time interval between the initial symbols is greater than or equal to the first threshold. The first threshold represents the minimum PDSCH processing delay. When the first condition is met, the value of the first threshold is the first value. In the first condition, the value of the first threshold is a second value, and the first value is smaller than the second value.
The method according to claim 1, wherein the first condition comprises: the first PDSCH is a PDSCH that is not transmitted for the first time in a semi-persistent scheduled SPS PDSCH.
The method according to claim 2, wherein the first condition further comprises: in the time unit where the first PDSCH is located, no physical downlink control channel (PDCCH) monitoring opportunity is configured.
The method according to claim 2 or 3, wherein the first information further indicates a second PUCCH resource, and the second PUCCH resource is used to carry HARQ-ACK information of the second PDSCH, and the second PDSCH It is the PDSCH transmitted for the first time in the 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 method according to claim 1, wherein the first condition comprises: the HARQ-ACK feedback of the first PDSCH is a separate feedback.
The method according to claim 5, wherein the method further comprises:

Receiving second information from the network device, the second information indicating that the HARQ-ACK feedback of the first PDSCH is a separate feedback.
The method according to claim 1, wherein the first condition comprises: the PUCCH format associated with the first PUCCH resource is format 0 or format 1.
The method according to claim 1, wherein the first condition comprises: no PDSCH HARQ-ACK codebook is configured.
The method according to any one of claims 1-8, wherein the first threshold satisfies the following first formula:

T 1 =(N 1 +d 1,1 )(2048+144)*k*T c *2 -μ1

Among them, T 1 is the first threshold, N 1 is the first number of symbols, d 1,1 is the first additional value, and 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, μ1 is the number of the first subcarrier interval, the first PDSCH is transmitted in the second communication system, and the first subcarrier interval is the The subcarrier interval used by the first PDSCH, the subcarrier interval used by the PDCCH for scheduling the first PDSCH, and the subcarrier interval used by the first PUCCH are the smallest subcarrier interval, or the first subcarrier interval The carrier 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 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 the first additional value corresponding to the second value value.
The method according to any one of claims 1-9, wherein the second value is a PDSCH minimum processing delay specified in Release 15 or Release 16 of the 3rd Generation Partnership Project 3GPP.
An information transmission method, characterized in that the method includes:

Sending a first physical downlink shared channel PDSCH and first information to the terminal device, where the first information indicates the first physical uplink control channel PUCCH resource;

Receive the HARQ-ACK information of the first PDSCH hybrid automatic repeat request acknowledgement from the terminal device on the first PUCCH resource, wherein 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. The first threshold represents the minimum PDSCH processing delay. When the first condition is met, the value of the first threshold is the first value. In the first condition, the value of the first threshold is a second value, and the first value is smaller than the second value.
The method according to claim 11, wherein the first condition comprises: the first PDSCH is a PDSCH that is not transmitted for the first time in a semi-persistent scheduled SPS PDSCH.
The method according to claim 12, wherein the first condition further comprises: in the time unit where the first PDSCH is located, no physical downlink control channel (PDCCH) monitoring opportunity is configured.
The method according to claim 12 or 13, wherein the first information further indicates a second PUCCH resource, and the second PUCCH resource is used to carry HARQ-ACK information of the second PDSCH, and the second PDSCH It is the PDSCH transmitted for the first time in the 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 method according to claim 11, wherein the first condition comprises: the HARQ-ACK feedback of the first PDSCH is a separate feedback.
The method according to claim 15, wherein the method further comprises:

Sending second information to the terminal device, where the second information indicates that the HARQ-ACK feedback of the first PDSCH is a separate feedback.
The method according to claim 11, wherein the first condition comprises: the PUCCH format associated with the first PUCCH resource is format 0 or format 1.
The method according to claim 11, wherein the first condition comprises: no PDSCH HARQ-ACK codebook is configured.
The method according to any one of claims 11-18, wherein the first threshold satisfies the following first formula:

T 1 =(N 1 +d 1,1 )(2048+144)*k*T c *2 -μ1

Among them, T 1 is the first threshold, N 1 is the first number of symbols, d 1,1 is the first additional value, and 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, μ1 is the number of the first subcarrier interval, the first PDSCH is transmitted in the second communication system, and the first subcarrier interval is the The subcarrier interval used by the first PDSCH, the subcarrier interval used by the PDCCH for scheduling the first PDSCH, and the subcarrier interval used by the first PUCCH are the smallest subcarrier interval, or the first The 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 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 the first additional value corresponding to the second value value.
The method according to any one of claims 11-19, wherein the second value is the minimum PDSCH processing delay specified in Release 15 or Release 16 of the 3rd Generation Partnership Project 3GPP.
A communication device, characterized by comprising a module for executing the method according to any one of claims 1 to 10, or comprising a module for executing the method according to any one of claims 11 to 20 .
A communication device, characterized by comprising 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 other communication devices other than the communication device, and the processor is used to implement the method according to any one of claims 1 to 10, or implement the method according to claim 11 through logic circuits or execution code instructions. To the method of any one of 20.
A computer-readable storage medium, characterized in that a computer program or instruction is stored in the storage medium, and when the computer program or instruction is executed by a communication device, the computer program or instruction is implemented as described in any one of claims 1 to 10 , Or implement the method according to any one of claims 11 to 20.
A communication device, characterized in that, the communication device includes: a processor;

The processor is configured to read a computer program or instruction stored in a memory, and execute the computer program or instruction, so that the communication device executes the method according to any one of claims 1 to 10, or , So that the communication device executes the method according to any one of claims 11 to 20.
A computer program product, characterized in that, when the computer program product runs on a communication device, the communication device executes the method according to any one of claims 1 to 10, or, when the computer program product runs on a communication device, The communication device executes the method according to any one of claims 11 to 20.