CN113472489A

CN113472489A - Information transmission method, device and system

Info

Publication number: CN113472489A
Application number: CN202010246677.9A
Authority: CN
Inventors: 李胜钰; 官磊; 马蕊香; 李锐杰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2021-10-01
Also published as: WO2021197270A1

Abstract

The embodiment of the application provides an information transmission method, device and system, relates to the field of wireless communication, and can reduce transmission delay. The terminal equipment can determine different HARQ-ACK feedback time delays according to different scenes. Therefore, under certain scenes, for example, the PDSCH which is not transmitted for the first time in the semi-persistent scheduling PDSCH, or the PDSCH which is fed back by the HARQ-ACK is fed back independently, the terminal equipment can feed back the HARQ-ACK information in advance, and the data transmission delay can be reduced.

Description

Information transmission method, device and system

Technical Field

The present application relates to the field of wireless communications, and in particular, to an information transmission method, apparatus, and system.

Background

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

Generally, the communication system needs to sacrifice the spectrum efficiency to meet the requirements of high reliability and low latency of URLLC service, i.e. to provide sufficient redundancy by allocating more resources. Among them, a hybrid automatic repeat request (HARQ) mechanism is an effective method for improving spectrum efficiency while satisfying reliability requirements.

However, some applications in URLLC service may require extremely low transmission delay (e.g., 1-2 ms loopback delay, i.e., 0.5-1 ms unidirectional air interface delay) and extremely high reliability requirements (e.g., 99.999% or even 99.9999999% reliability), but in HARQ mechanisms, retransmission is performed after initial transmission failure, which increases service transmission delay, and thus, based on existing terminal processing capability, base station processing capability, and transmission mechanism, it is difficult to meet the extremely low delay requirements of such applications.

Disclosure of Invention

The embodiment of the application provides an information transmission method, device and system, which can reduce transmission delay.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

in a first aspect, an embodiment of the present application provides an information transmission method, which may be executed by a terminal device, or may be executed by a component of the terminal device, such as a processor, a chip, or a chip system of the terminal device. The method comprises the following steps: the terminal equipment receives the first PDSCH and first information from the network equipment, wherein the first information indicates a first PUCCH resource, and then the terminal equipment sends HARQ-ACK information of the first PDSCH on the first PUCCH resource. The time interval between the ending symbol of the first PDSCH and the starting symbol of the first PUCCH resource is greater than or equal to a first threshold, the first threshold represents the PDSCH minimum processing delay, when a first condition is met, the value of the first threshold is a first numerical value, when the first condition is not met, the value of the first threshold is a second numerical value, and the first numerical value is smaller than the second numerical value.

Based on the scheme, when a first condition is met, the minimum processing time delay of the PDSCH is reduced, so that under the first condition, the time interval between a first PUCCH resource scheduled by the network equipment and the first PDSCH can be reduced, when the PDSCH is processed by the terminal equipment in advance, HARQ-ACK information can be sent on the first PUCCH resource, and the HARQ-ACK information does not need to be sent after a second numerical value after the end symbol of the PDSCH begins, so that the HARQ-ACK feedback can be accelerated, and the transmission time delay is reduced; on the other hand, when the first condition is met, the PDSCH processing flow is simplified, so that the HARQ-ACK feedback time delay can be shortened, the HARQ-ACK feedback time delay is shortened without additionally improving the processing capacity of a chip, new requirements on a chip architecture cannot be brought forward, and the product implementation is easy.

In one 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 single feedback.

Based on the possible design, the terminal equipment can know that the HARQ-ACK feedback of the first PDSCH is independent feedback, so that the follow-up process does not need to wait for the HARQ-ACK feedback of other PDSCHs together, or the generation of an HARQ-ACK codebook is not needed, thereby reducing the processing time of the PDSCH, reducing the lowest processing delay of the PDSCH and further reducing the transmission delay.

In a second aspect, the present application provides an information transmission method, which may be executed by a network device, or may be executed by a component of the network device, such as a processor, a chip, or a system-on-chip of the network device, and the present application takes the network device to execute the method as an example. The method comprises the following steps: the network device sends the first PDSCH and first information to the terminal device, wherein the first information indicates a first PUCCH resource, and then the network device receives HARQ-ACK information of the first PDSCH from the terminal device on the first PUCCH resource. The time interval between the ending symbol of the first PDSCH and the starting symbol of the first PUCCH resource is greater than or equal to a first threshold, the first threshold represents the PDSCH minimum processing delay, when a first condition is met, the value of the first threshold is a first numerical value, when the first condition is not met, the value of the first threshold is a second numerical value, and the first numerical value is smaller than the second numerical value. The technical effects of the second aspect can be seen in the technical effects of the first aspect.

In one possible design, the information transmission method may further include: and the network equipment sends second information to the terminal equipment, wherein the second information indicates that the HARQ-ACK feedback of the first PDSCH is independent feedback.

With reference to the first and second aspects, in one possible design, the first condition may include: the first PDSCH is a non-first transmitted PDSCH of the semi-persistent scheduling SPS PDSCH.

Based on the possible design, because the non-first transmission of the SPS PDSCH does not need the scheduling of the DCI, the terminal equipment does not need to receive the DCI and decode the DCI, and the PDSCH processing process can not include the decoding of the DCI, so that the PDSCH processing time is reduced, the lowest processing time delay of the PDSCH can be reduced, and the transmission time delay is further reduced.

With reference to the first aspect and the second aspect, in one possible design, the first condition may further include: and in the time unit of the first PDSCH, the monitoring opportunity of the physical downlink control channel PDCCH is not configured.

Based on the possible design, since the monitoring opportunity of the PDCCH is not configured in the time unit where the first PDSCH is located, the terminal device does not need to monitor the PDCCH in the time unit, that is, when the first PDSCH is a PDSCH that is not transmitted for the first time in the SPS PDSCH and does not need to monitor the PDCCH in the time unit where the first PDSCH is located, the PDSCH processing time can be reduced.

With reference to the first aspect and the second aspect, in a possible design, the first information further indicates a second PUCCH resource, where the second PUCCH resource is used to carry HARQ-ACK information of a second PDSCH, the second PDSCH is a PDSCH transmitted for the first time in the SPS PDSCH, and a time interval between an end symbol of the second PDSCH and a start symbol of the second PUCCH resource is greater than or equal to a second value.

Based on the possible design, the network equipment configures the second PUCCH resource for carrying the HARQ-ACK information of the PDSCH transmitted for the first time in the SPS PDSCH, so that the feedback of the HARQ-ACK information of the PDSCH transmitted for the first time can be considered.

With reference to the first and second aspects, in one possible design, the first condition may include: the HARQ-ACK feedback for the first PDSCH is a separate feedback.

Based on the possible design, because the HARQ-ACK feedback of the first PDSCH is independent feedback, the HARQ-ACK feedback of other PDSCHs does not need to be waited for, or a HARQ-ACK codebook does not need to be generated, so that the processing time of the PDSCH can be reduced, the lowest processing delay of the PDSCH can be reduced, and the transmission delay is further reduced.

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

Based on the possible design, when the PUCCH format associated with the first PUCCH resource for carrying the HARQ-ACK information of the first PDSCH is format 0 or format 1, it may be understood that the first PUCCH resource can only carry the HARQ-ACK information of the first PDSCH, or it may be understood that HARQ-ACK feedback of the first PDSCH is separate feedback, so that processing time of the PDSCH can be reduced, so that the lowest processing delay of the PDSCH can be reduced, and further transmission delay is reduced.

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

Based on the possible design, since the network device does not configure PDSCH HARQ-ACK codebook to the terminal device, when the terminal device performs HARQ-ACK feedback of the PDSCH, no codebook needs to be generated, so that the processing time of the PDSCH is reduced, the minimum processing delay of the PDSCH can be reduced, and the transmission delay is further reduced.

With reference to the first aspect and the second aspect, in one possible design, the first threshold satisfies the following first formula:

T₁＝(N₁+d_1,1)(2048+144)*k*T_c*2^-μ1

wherein, T₁Is a first threshold, N₁Is the first number of symbols, d_1,1K is the ratio of the minimum sampling interval of the first communication system to the minimum sampling interval of the second communication system, T is the first added value_cMu 1 is the number of a first subcarrier interval, which is the minimum sampling interval of the second communication system, the first PDSCH is transmitted in the second communication system, and the first subcarrier interval is the subcarrier interval used by the first PDSCH and the subcarrier interval used by a PDCCH for scheduling the first PDSCHThe subcarrier spacing of the first PDSCH and the smallest subcarrier spacing among the subcarrier spacings used by the first PUCCH, or the first subcarrier spacing is the smallest subcarrier spacing among the subcarrier spacings used by the first PDSCH and the subcarrier spacing used by the first PUCCH; the first number of symbols corresponding to the first value is smaller than the first number of 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.

With reference to the first aspect and the second aspect, in a possible design, the second value is a PDSCH minimum processing delay specified in release 15 or release 16 of the third generation partnership project 3 GPP.

In a third aspect, an embodiment of the present application provides an information transmission method, which may be executed by a terminal device, or may be executed by a component of the terminal device, such as a processor, a chip, or a chip system of the terminal device. The method comprises the following steps: the terminal equipment receives scheduling information from the network equipment, wherein the scheduling information is used for scheduling a first Physical Uplink Shared Channel (PUSCH); and the terminal equipment transmits the first PUSCH, wherein the time interval between the starting symbol of the first PUSCH and the ending symbol of the Physical Downlink Control Channel (PDCCH) where the scheduling information is located is greater than or equal to a second threshold, the second threshold represents PUSCH minimum transmission preparation time delay, when a second condition is met, the value of the second threshold is a third value, when the second condition is not met, the value of the second threshold is a fourth value, and the third value is smaller than the fourth value.

Based on the scheme, on one hand, when the second condition is met, the minimum transmission preparation time delay of the PUSCH is reduced, so that under the second condition, the time interval between the PUSCH scheduled by the network equipment and the PDCCH where the scheduling information of the PUSCH is scheduled can be reduced, so that when the terminal equipment finishes the PUSCH transmission preparation in advance, the PUSCH can be transmitted earlier, and the transmission time delay is reduced; on the other hand, when the second condition is met, the PUSCH sending preparation flow is simplified, so that the PUSCH sending preparation time delay can be shortened, the PUSCH sending preparation time delay is shortened without additionally improving the processing capacity of a chip, new requirements on a chip architecture cannot be met, and the product implementation is easy.

In one possible design, the information transmission method further includes: the terminal equipment receives indication information from the network equipment, wherein the indication information indicates the redundancy version of the first PUSCH.

In a fourth aspect, the present application provides an information transmission method, which may be executed by a network device, or may be executed by a component of the network device, such as a processor, a chip, or a system-on-chip of the network device, and the present application takes the network device to execute the method as an example. The method comprises the following steps: the method comprises the steps that a network device sends scheduling information to a terminal device, wherein the scheduling information is used for scheduling a first Physical Uplink Shared Channel (PUSCH), and then the network device receives the first PUSCH from the terminal device, wherein the time interval between a starting symbol of the first PUSCH and an ending symbol of a Physical Downlink Control Channel (PDCCH) where the scheduling information is located is greater than or equal to a second threshold, the second threshold represents PUSCH minimum sending preparation time delay, when a second condition is met, the value of the second threshold is a third value, when the second condition is not met, the value of the second threshold is a fourth value, and the third value is smaller than the fourth value. The technical effects of the fourth aspect can be seen in the technical effects of the third aspect.

In one possible design, the information transmission method further includes: and the network equipment sends indication information to the terminal equipment, wherein the indication information indicates the redundancy version of the first PUSCH.

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

Based on the possible design, the terminal equipment can assemble the MAC PDU in advance, so that the MAC PDU assembly is not required to be carried out again after the scheduling information is received, the PUSCH sending preparation time can be shortened, the PUSCH minimum sending preparation time delay can be shortened, the PUSCH can be sent earlier, and the transmission time delay is shortened.

With reference to the third and fourth aspects, in one possible design, the second condition may further include: the HARQ process of the first PUSCH is a preset process, and the preset value is a TBS for performing data transmission using the preset process.

Based on the possible design, when the HARQ process of the first PUSCH is a preset process, the terminal device may store the MAC PDU after assembling the MAC PDU into the HARQ buffer of the preset process, so as to perform coding modulation subsequently.

With reference to the third and fourth aspects, in one 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 is a preset scheme and the redundancy version of the first PUSCH is a preset version.

Based on the possible design, the terminal device can complete coding or complete coding and modulation before receiving the scheduling information, and can further reduce the preparation time for sending the PUSCH, so that the minimum preparation time for sending the PUSCH can be reduced, the PUSCH can be sent earlier, and the transmission delay is reduced.

With reference to the third and fourth aspects, in one possible design, the second condition may include: the data sent on the first PUSCH is retransmission data of the first uplink data.

Based on the possible design, because the uplink data which is the same as the initially transmitted uplink data is retransmitted, that is, the MAC PDU is transmitted, and the terminal device has generated and stored the MAC PDU when the first uplink data is initially transmitted, when the first uplink data is retransmitted, the terminal device does not need to perform MAC PDU packaging, thereby reducing the transmission preparation time of the PUSCH, reducing the minimum transmission preparation time delay of the PUSCH, and further sending the PUSCH earlier, and reducing the transmission time delay.

With reference to the third aspect and the fourth aspect, in a possible design, the MCS used for the first PUSCH is the same as the MCS used for the initial transmission of the first uplink data.

Based on the possible design, under the condition that 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 modulation again when retransmitting the first uplink data, so that the preparation time for sending the PUSCH may be reduced, and the transmission delay may be further reduced.

With reference to the third aspect and the fourth aspect, in one possible design, the second threshold satisfies the following second formula:

T₂＝max((N₂+d_2,1)(2048+144)*k*T_c*2^-μ2,d_2,2)

wherein, T₂Is a second threshold, N₂Is the second number of symbols, d_2,1For the second added value, d_2,2For a third added 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_cThe minimum sampling interval of the second communication system is represented by mu 2, the serial number of a second subcarrier interval is represented by mu 2, the first PUSCH is transmitted in the second communication system, and the second subcarrier interval is the minimum subcarrier interval in the subcarrier interval used by the first PUSCH and the subcarrier interval used by a PDCCH for scheduling the first PUSCH; at least one of the following three conditions is satisfied: the second number of symbols corresponding to the third numerical value is smaller than the second number of symbols corresponding to the fourth numerical value; the second additional value corresponding to the third value is smaller than the second additional value corresponding to the fourth value; the third additional value corresponding to the third value is less than the third additional value corresponding to the fourth value.

With reference to the third and fourth aspects, in one possible design, the fourth value is a PUSCH minimum transmission preparation delay specified in release 15 or release 16 of the third generation partnership project 3 GPP.

In a fifth aspect, the present application provides an information transmission method, which may be executed by a terminal device, or may be executed by a component of the terminal device, such as a processor, a chip, or a chip system of the terminal device. The method comprises the following steps: the terminal equipment receives a third Physical Downlink Shared Channel (PDSCH) from the network equipment and determines a third Physical Uplink Shared Channel (PUSCH), wherein the third PUSCH is associated with the third PDSCH; and then the terminal equipment transmits a third PUSCH to the network equipment, wherein the time interval between the starting symbol of the third PUSCH and the ending symbol of the third PDSCH is greater than or equal to a third threshold, and the third threshold represents the minimum processing delay from the reception of the PDSCH to the transmission of the PUSCH associated with the PDSCH.

In the scheme, the minimum processing time delay during the associated transmission of the PDSCH and the PUSCH is provided, and the processing flow of the associated transmission of the PDSCH and the PUSCH can be perfected.

In a sixth aspect, the present application provides an information transmission method, which may be executed by a network device, or may be executed by a component of the network device, such as a processor, a chip, or a system-on-chip of the network device, and the present application takes the network device to execute the method as an example. The method comprises the following steps: the network device sends a third PDSCH to the terminal device and receives a third PUSCH from the terminal device, the third PUSCH being associated with the third PDSCH. Wherein a time interval between a starting symbol of the third PUSCH and an ending symbol of the third PDSCH is greater than or equal to a third threshold, the third threshold representing a minimum processing delay from receiving the PDSCH to transmitting the PUSCH associated with the PDSCH. The technical effects of the fourth aspect can be seen in the technical effects of the third aspect.

With reference to the fifth and sixth aspects, in one possible design, associating a third PUSCH with a third PDSCH includes: the third PDSCH and the third PUSCH are scheduled by first downlink control information DCI.

With reference to the fifth aspect and the sixth aspect, in one 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.

With reference to the fifth aspect and the sixth aspect, in a possible design, the first DCI includes time domain resource indication information of the third PDSCH, offset information used to determine a time unit in which the third PUSCH is located, and position indication information indicating a position of the third PUSCH in the time unit.

With reference to the fifth and sixth aspects, in one possible design, associating a third PUSCH with the third PDSCH includes: a third PUSCH is scheduled by the third PDSCH.

With reference to the fifth and sixth aspects, in one possible design, the third PDSCH includes time-domain resource indication information of the third PUSCH.

With reference to the fifth and sixth aspects, in one possible design, associating a third PUSCH with the third PDSCH includes: the third PDSCH is a semi-persistent scheduling (SPS) PDSCH, and the third PUSCH is a Configuration Grant (CG) PUSCH, wherein the third PUSCH is a first CG PUSCH after the third PDSCH.

With reference to the fifth and sixth aspects, in one possible design, the periodicity of the SPS PDSCH is the same as the periodicity of the CG PUSCH.

With reference to the fifth aspect and the sixth aspect, in one possible design, the third PUSCH is associated with the third PDSCH, and the method further includes: and when the third PDSCH decoding is unsuccessful, not transmitting the third PUSCH.

In a seventh aspect, a communication device is provided for implementing the various methods described above. The communication device may be the terminal device in the first aspect, the third aspect or the fifth aspect, or a device including the terminal device, or a device included in the terminal device; alternatively, the communication device may be the network device in the second aspect, the fourth aspect or the sixth aspect, or a device including the network device, or a device included in the network device. The communication device includes corresponding modules, units, or means (means) for implementing the above methods, and the modules, units, or means may be implemented by hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the above functions.

In an eighth aspect, there is provided a communication apparatus comprising: a processor and a memory; the memory is configured to store computer-executable instructions that, when executed by the processor, cause the communication device to perform the method of any of the above aspects. The communication device may be the terminal device in the first aspect, the third aspect or the fifth aspect, or a device including the terminal device, or a device included in the terminal device; alternatively, the communication device may be the network device in the second aspect, the fourth aspect or the sixth aspect, or a device including the network device, or a device included in the network device.

In a ninth aspect, there is provided a communication apparatus comprising: a processor; the processor is configured to be coupled to the memory, and after reading the instructions in the memory, perform the method according to any one of the above aspects. The communication device may be the terminal device in the first aspect, the third aspect or the fifth aspect, or a device including the terminal device, or a device included in the terminal device; alternatively, the communication device may be the network device in the second aspect, the fourth aspect or the sixth aspect, or a device including the network device, or a device included in the network device.

In a tenth aspect, there is provided a communication apparatus comprising: a processor and an interface circuit, the interface circuit being configured to receive and transmit signals from or send signals to other communication devices, the processor being configured to implement the method according to any one of the above aspects by logic circuits or executing code instructions.

In an eleventh aspect, there is provided a computer readable storage medium having stored therein a computer program or instructions which, when executed by a communication apparatus, cause the communication apparatus to perform the method of any of the above aspects.

In a twelfth aspect, there is provided a computer program product comprising instructions, the computer program product comprising computer program code which, when run on a computer, causes the computer to perform the method of any of the above aspects.

In a thirteenth aspect, a communication device (which may be a chip or a system of chips, for example) is provided, which comprises a processor for implementing the functionality according to any of the above aspects. In one possible design, the communication device further includes a memory for storing necessary program instructions and data. When the communication device is a chip system, the communication device may be constituted by a chip, or may include a chip and other discrete devices.

For technical effects brought by any one of the design manners of the seventh aspect to the thirteenth aspect, reference may be made to the technical effects brought by different design manners of the first aspect, the second aspect, the third aspect, the fourth aspect, the fifth aspect, or the sixth aspect, and no further description is provided herein.

In a fourteenth aspect, a communication system is provided, which comprises the terminal device of the first aspect, the third aspect or the fifth aspect and the network device of the second aspect, the fourth aspect or the sixth aspect.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a terminal device and a network device according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of another terminal device provided in an embodiment of the present application;

fig. 4 is a schematic flowchart of an information transmission method according to an embodiment of the present application;

fig. 5 is a schematic diagram of a location of a PDSCH provided in an embodiment of the present application;

fig. 6 is a schematic flowchart of another information transmission method according to an embodiment of the present application;

fig. 7 is a schematic flowchart of another information transmission method according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of another communication device according to an embodiment of the present application.

Detailed Description

To facilitate understanding of the technical solutions of the embodiments of the present application, a brief description of related technologies or terms of the present application is first given as follows.

First, HARQ mechanism:

the HARQ mechanism is a retransmission mechanism of a Medium Access Control (MAC) layer, which exists at both a transmitting end and a receiving end. The HARQ operation of the sending end includes generating and sending a Transport Block (TB), receiving and processing hybrid automatic repeat request-acknowledgement (HARQ-ACK) information, and the like. The HARQ-ACK information includes an Acknowledgement (ACK) or a Negative Acknowledgement (NACK).

The HARQ operation of the receiving end comprises receiving TB, carrying out HARQ combination processing on the received initial transmission data and HARQ retransmission data, generating and feeding back ACK/NACK and the like. After receiving a TB sent by a sending end, a receiving end carries out Cyclic Redundancy Check (CRC), and if the CRC succeeds, an ACK is fed back to the sending end; if the CRC check fails, a NACK is fed back. If the sending end receives the ACK, new transmission is carried out; and if the transmitting end receives the NACK, retransmitting.

Second, Physical Downlink Shared Channel (PDSCH) minimum processing delay:

PDSCH minimum processing delay: the minimum time delay between the ending time of the PDSCH and the first time is the time when the terminal equipment sends the HARQ-ACK information of the PDSCH.

Release 15 or release 16 of the third generation partnership project (3 GPP) specifies: the PDSCH minimum processing delay satisfies the following formula A:

T_proc,1＝(N₁+d_1,1)(2048+144)*k*T_c*2^-μ

wherein, T_proc,1For PDSCH minimum processing delay, N₁The first number of symbols may be related to the terminal processing capability, the subcarrier spacing, and whether an additional (modulation reference signal (DMRS) is included. Illustratively, in 3GPP R15/R16, N₁The values of (a) can be shown in table 1 below.

TABLE 1

Wherein N is_1,0The value is a preset value, and can have different values under different conditions; 9 (band 1) denotes N in band 1₁Is 9, N in frequency band 2₁No value is taken; represents N₁No value is taken.

d_1,1The value of the first additional value may be related to a mapping type of the PDSCH, a time domain length of the PDSCH, or the number of symbols overlapping the PDSCH and a Physical Downlink Control Channel (PDCCH) for scheduling the PDSCH.

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 (kHz) and the maximum number of subcarriers is 2048, which may be, for example, a Long Term Evolution (LTE) system; the maximum subcarrier spacing of the second communication system is greater than the maximum subcarrier spacing 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, for example, the maximum subcarrier spacing of the second communication system may be 480kHz, the maximum number of subcarriers may be 4096, and the second communication system may be, for example, a New Radio (NR) system, which is not specifically limited in this embodiment of the present application. Wherein the PDSCH is transmitted in a second communication system.

T_cIs the minimum sampling interval of the second communication system and is determined by the maximum subcarrier interval and the maximum subcarrier number of the second communication system, namely T_c＝1/(Δf_max*N_f) Wherein, Δ f_maxIs the maximum subcarrier spacing, N, of the second communication system_fIs the maximum number of subcarriers of the second communication system.

μ is the number of the subcarrier spacing, and the subcarrier spacing corresponding to the number of the subcarrier spacing may be as shown in table 2 below. In the PDSCH minimum processing delay, μ is the number of the minimum subcarrier interval among the subcarrier interval used for the PDCCH for scheduling the PDSCH, the subcarrier interval used for the PDSCH, and the subcarrier interval used for the Physical Uplink Control Channel (PUCCH) for carrying HARQ-ACK information.

TABLE 2

Subcarrier spacing numbering	Subcarrier spacing
		0	15kHz
1	30kHz
		2	60kHz
3	120kHz
		4	240kHz

For a detailed description of the relevant parameters in the above formula a, reference may be made to the related description in section 5.3 of 3GPP Technical Specification (TS) 38.214 V16.0.0 and section 4.1 of 3GPP TS38.211 V16.0.0.

The PDSCH minimum processing delay specified by 3GPP R15/R16 takes the following four-link delay into consideration, or the PDSCH processing process includes the following four links:

a first link: PDCCH blind detection comprises the following steps of: PDCCH reception, DCI (downlink control information) decoding in PDCCH, cyclic redundancy check, and the like.

And a second link: and the reception of the PDSCH comprises radio frequency reception, demodulation, decoding and the like.

And a third step: generation of HARQ-ACK codebook (codebook).

And a fourth step of: and the preparation of the HARQ-ACK codebook comprises coding, modulation, resource mapping and the like.

Third, the minimum transmission preparation delay of a Physical Uplink Shared Channel (PUSCH):

PUSCH minimum transmission preparation delay: the minimum time delay between the ending time of the PDCCH where the information of the scheduled PUSCH is located and a second time, where the second time is a starting time for transmitting the PUSCH, or the second time is a starting time of the PUSCH.

The PUSCH minimum transmission preparation delay is specified in 3GPP R15/R16 to satisfy the following formula B:

T_proc,2＝max((N₂+d_2,1)(2048+144)*k*T_c*2^-μ,d_2,2)

T_proc,2for PUSCH minimum processing delay, N₂The value of the second number of symbols may be related to the processing power of the terminal and the subcarrier spacing. Illustratively, in 3GPP R15/R16, N₂The values of (a) can be as shown in table 3 below.

TABLE 3

Subcarrier spacing numbering	Terminal processing capability #1	Terminal processing capability #2
			0	10	5
1	12	5.5
			2	23	11 (frequency range 1)
3	36	/

Where 11 (band 1) denotes N in band 1₂Is 11, N in band 2₂No value is taken; represents N₂No value is taken.

k and T_cThe meaning of (1) can be referred to the related description in the PDSCH minimum processing delay, and the PUSCH is transmitted in the second communication system, which is not described herein again.

d_2,1The value of the second additional value is related to whether the first symbol of the PUSCH only contains the DMRS, and when the first symbol of the PUSCH only contains the DMRS, the value of the second additional value is 0; when the first symbol of PUSCH includes more than DMRS, it takes a value of 1.

d_2,1The third added value represents a bandwidth part (BWP) switching delay.

μ is the number of the subcarrier spacing, and the subcarrier spacing corresponding to the number of the subcarrier spacing may be as shown in table 2 above. In the PUSCH minimum transmission preparation delay, μ is the number of the subcarrier interval used for scheduling the PDCCH of the PUSCH and the minimum subcarrier interval among the subcarrier intervals used for the PUSCH.

For a detailed description of the relevant parameters in the above formula B, reference may be made to the related description in section 6.4 of 3GPP Technical Specification (TS) 38.214 V16.0.0 and section 4.1 of 3GPP TS38.211 V16.0.0.

The PUSCH minimum processing delay specified by the 3GPP R15/R16 takes the following delay of three links into consideration, or the PUSCH transmission preparation includes the following three links:

a first link: PDCCH blind detection comprises the following steps of: PDCCH reception, DCI decoding in PDCCH, cyclic redundancy check, or the like.

And a second link: and a Protocol Data Unit (PDU) packet of the MAC layer.

And a third step: preparation for PUSCH transmission at the physical layer includes coding, modulation, or resource mapping.

Fourth, semi-persistent scheduling (SPS) PDSCH:

the SPS PDSCH refers to a PDSCH configured by the network device for the terminal device through SPS PDSCH configuration information. The SPS PDSCH configuration information may indicate the period of the SPS PDSCH, the number of HARQ processes, and other information.

After the network device configures the SPS PDSCH to the terminal device, the configuration may be activated through DCI. The DCI indicates the time domain position of the PDSCH transmitted for the first time in the SPS PDSCH, namely the PDSCH transmitted for the first time in the SPS PDSCH is scheduled through the DCI, and the subsequent SPS PDSCH transmission is determined according to the time domain position of the SPS PDSCH transmitted for the first time and the period configured by a high layer. Further, one transmission of SPS PDSCH corresponds to one transmission occasion, which may be referred to as SPS PDSCH occasion (occasion).

It should be noted that, in this embodiment of the present application, the time domain position of the physical channel refers to a time unit in which the physical channel is located, or refers to a time unit in which the physical channel is located and a symbol position in the time unit. The physical channel here may be PUSCH, PDSCH, PUCCH, or PDCCH. It is to be understood that in the embodiments of the present application, the PUSCH, the PDSCH, the PUCCH, and the PDCCH are respectively used as specific examples of the uplink data channel, the downlink data channel, the uplink control channel, and the downlink control channel, and these channels may be named differently in different communication systems, which is 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, or the like, 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 (OFDM) symbol.

Fifth, Configure Granted (CG) PUSCH:

CG PUSCH refers to PUSCH configured by a network device for a terminal device through a configuration grant configuration (config grant configuration) cell in Radio Resource Control (RRC) signaling. CG PUSCH is periodically transmitted, one transmission at a time corresponds to one transmission occasion, which may be referred to as CG PUSCH occasion (occasion).

There are two types of configuration grants for CG PUSCH:

configuration grant Type 1(Configured grant Type 1): the configuration and grant configuration cell configures all parameters related to the CG PUSCH, such as the period of the CG PUSCH, the first transmission offset, and the symbol occupied by the CG PUSCH in a time unit. The terminal equipment can determine the time domain position of the CG PUSCH through time domain parameters such as a period, a first transmission deviation value, and a symbol occupied by the CG PUSCH in a time unit. The CG of the type takes effect after being configured through RRC signaling, and does not need to be activated through DCI or deactivated through DCI.

Configuration grant Type 2(Configured grant Type 2): the configured grant configuration cell configures CG PUSCH period, number of HARQ processes and other parameters related to CG PUSCH. The CG of this type is configured by RRC signaling, and then needs to be activated by DCI to be effective, and may be deactivated by DCI. And the network equipment indicates the time domain position of the first-transmitted PUSCH in the CG PUSCH to the terminal equipment through the DCI. The terminal equipment can determine the time domain position of the PUSCH which is not transmitted for the first time in the CG PUSCH according to the period of the CG PUSCH and the time domain position of the PUSCH transmitted for the first time.

Sixthly, PDCCH monitoring occasion (PDCCHmonitoring occasion) configuration:

the PDCCH monitoring occasion configuration is configured to configure an occasion for monitoring the PDCCH to the terminal device, where the configuration may include a monitoring period, a time unit to be monitored in the period, and a monitoring occasion pattern (pattern) corresponding to the time unit, where the monitoring occasion pattern is a bit sequence with a length of N and corresponds to N symbols included in the time unit, respectively. When the value of a bit is "0", it indicates that the terminal device in the symbol corresponding to the bit does not need to monitor the PDCCH, and correspondingly, the network device does not send the PDCCH to the terminal device in the symbol; when the value of the bit is "1", it indicates that the PDCCH needs to be monitored in the symbol corresponding to the bit, and accordingly, the network device may send the PDCCH to the terminal device in the symbol.

The technical scheme of the embodiment of the application can be applied to various communication systems. For example, the communication system may be an NR system in a 5th generation (5G) mobile communication system, a wireless fidelity (WiFi) system, a 3rd generation partnership project (3 GPP) related communication system, a future evolution communication system, and the like, without limitation. The term "system" may be used interchangeably with "network". The 5G communication system is a next-generation communication system under study. The 5G communication system includes a non-standalone (NSA) 5G mobile communication system and a Standalone (SA) 5G mobile communication system. The above-described communication system to which the present application is applied is merely an example, and the communication system to which the present application is applied is not limited thereto.

In addition, the network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not constitute a limitation to the technical solution provided in the embodiment of the present application, and it can be known by a person skilled in the art that the technical solution provided in the embodiment of the present application is also applicable to similar technical problems along with the evolution of the network architecture and the appearance of a new service scenario.

As shown in fig. 1, a communication system 10 is provided in accordance with an embodiment of the present 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. Alternatively, different terminal devices 40 may communicate with each other.

Taking 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 a first PDSCH and first information to the terminal device, where the first information indicates a first PUCCH resource; after receiving a first PDSCH and first information from network equipment, terminal equipment sends HARQ-ACK information of the first PDSCH to the network equipment on a first PUCCH resource, wherein a time interval between an ending symbol of the first PDSCH and a starting symbol of the first PUCCH resource is greater than or equal to a first threshold, the first threshold represents PDSCH minimum processing delay, when a first condition is met, a value of the first threshold is a first numerical value, when the first condition is not met, a value of the first threshold is a second numerical value, and the first numerical value is smaller than the second numerical value.

Optionally, the network device 30 in this embodiment of the present application is a device that accesses the terminal device 40 to a wireless network, and includes but is not limited to: an evolved Node B (eNodeB) in LTE, a base station (gbnodeb or gNB) or a transmission point (TRP) in NR, a base station for subsequent 3GPP evolution, an access Node in WiFi system, a wireless relay Node, a wireless backhaul Node, and the like. The base station may be: macro base stations, micro base stations, pico base stations, small stations, relay stations, or balloon stations, etc. Multiple base stations may support the same technology network as mentioned above, or different technologies networks as mentioned above. The base station may contain one or more co-sited or non co-sited TRPs. The network device may also be a radio controller, a Centralized Unit (CU), and/or a Distributed Unit (DU) in a Cloud Radio Access Network (CRAN) scenario. The following description will take a network device as an example of a base station. The base station may communicate with the terminal, or may communicate with the terminal through the relay station. The terminal may communicate with multiple base stations of different technologies, for example, the terminal may communicate with a base station supporting an LTE network, may communicate with a base station supporting a 5G network, and may support dual connectivity with the base station of the LTE network and the base station of the 5G network.

Optionally, the terminal device 40 in the embodiment of the present application is a device with a transceiving function, and may be deployed on land, including indoors or outdoors, handheld, wearable, or vehicle-mounted; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.). The terminal device 40 may be a mobile phone, a tablet computer, a computer with a 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, a terminal device in unmanned driving, a terminal device in assisted driving, a terminal device in telemedicine, a terminal device in a smart grid, a terminal device in transportation safety, a terminal device in a smart city, a terminal device in a smart home, and so on. The terminal device 40 may also be a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit built in the vehicle as one or more components or units, and the vehicle may implement the method of the present application through the built-in vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip, or vehicle-mounted unit. The embodiments of the present application do not limit the application scenarios. A terminal device may also be referred to as a terminal or User Equipment (UE). The terminals may 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 apparatus, 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 according to an embodiment of the present application. The terminal device 40 includes at least one processor and at least one transceiver, and fig. 2 illustrates an example of the terminal device including one processor 401 and one transceiver 403. Terminal device 40 may also include at least one memory, at least one output device, and at least one input device, which are illustrated in fig. 2 as 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 by a communication line. The communication link may include a path for transmitting information between the aforementioned components.

The processor 401 may be a general-purpose Central Processing Unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more ics for controlling the execution of programs in accordance with the present disclosure. In a specific implementation, as an embodiment, the processor 401 may also include a plurality of CPUs, and the processor 401 may be a single-core processor or a multi-core processor. A processor herein may refer to one or more devices, circuits, or processing cores that process data.

The memory 402 may be a device having a storage function. Such as, but not limited to, a read-only memory (ROM) or other type of static storage device that may store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that may store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, magnetic disk storage or other magnetic storage device, or any other medium that can be used to carry or store computer-executable instructions and that can be accessed by a computer. The memory 402 may be separate and coupled to the processor 401 via a communication link. The memory 402 may also be integrated with the processor 401.

The memory 402 is used for storing computer executable instructions for executing the scheme of the application, and is controlled by the processor 401 to execute. 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 apparatuses, devices or communication networks. The transceiver 403 may include a transmitter (Tx) and a receiver (Rx).

An output device 404 is in communication with the processor 401 and may 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, a projector (projector), or the like.

The input device 405 is in communication with the processor 401 and may 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 sensing device, among others.

The network device 30 comprises at least one processor, at least one transceiver and at least one network interface, which is exemplarily illustrated in fig. 2 as comprising one processor 301, one transceiver 303 and one network interface 304. Optionally, the network device 30 may further include at least one memory, and fig. 2 illustrates an example including one memory 302. The processor 301, the memory 302, the transceiver 303, and the network interface 304 are connected via a communication line. The network interface 304 is configured to connect with a core network device through a link (e.g., an S1 interface), or connect with a network interface of another network device (not shown in fig. 2) through a wired or wireless link (e.g., an X2 interface), which is not specifically limited in this embodiment of the present application. In addition, the description of the processor 301, the memory 302 and the transceiver 303 may refer to the description of the processor 401, the memory 402 and the transceiver 403 in the terminal device 40.

In conjunction with the schematic structural diagram of the terminal device 40 shown in fig. 2, fig. 3 is a specific structural form of the terminal device 40 provided in the embodiment of the present application.

Wherein, 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 functions of the transceiver 403 in fig. 2 may be implemented by the antenna 1, the mobile communication module 150, and the like in fig. 3. The mobile communication module 150 may provide a solution including 2G/3G/4G/5G wireless communication applied on 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 may receive the electromagnetic wave from the antenna 1, filter, amplify, etc. the received electromagnetic wave, and transmit the electromagnetic wave to the modem processor for demodulation. The mobile communication module 150 may also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the same device as at least some of the modules of the processor 110.

In some embodiments, the antenna 1 of the terminal device 40 and the mobile communication module 150 are coupled such that the terminal device 40 can communicate with networks and other devices through wireless communication techniques.

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

In some embodiments, the functionality of the input device 405 of fig. 2 may be implemented by a mouse, a keyboard, a touch screen device, or the sensor module 180 of fig. 3.

In some embodiments, as shown in fig. 3, the terminal device 40 may further include one or more 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.

It is to be understood that the structure shown in fig. 3 does not constitute a specific limitation to the terminal device 40. For example, in other embodiments of the present application, terminal device 40 may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may 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 with reference to fig. 1 to 3.

It should be noted that, in the following embodiments of the present application, names of messages (or information) and names of parameters in the messages (or information) are only examples, and other names may also be used in specific implementations, and the embodiments of the present application are not limited to this specifically.

As shown in fig. 4, an information transmission method provided in the embodiment of the present application includes the following steps:

s401, the network equipment sends the first PDSCH to the terminal equipment. Accordingly, the terminal device receives the first PDSCH from the network device.

S402, the network equipment sends first information to the terminal equipment. Accordingly, the terminal device receives the first information from the network device.

The first information indicates a first PUCCH resource, and the first PUCCH resource is used for bearing HARQ-ACK information of the first PDSCH.

The time interval between the ending symbol of the first PDSCH and the starting symbol of the first PUCCH resource is greater than or equal to a first threshold, where the first threshold represents PDSCH minimum processing delay, and when a first condition is satisfied, the value of the first threshold is a first value, and when the first condition is not satisfied, the value of the first threshold is a second value, and the first value is smaller than the second value. The embodiment of the present application is described by taking an example of satisfying a first condition, which will be described in detail in the following embodiments.

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

It can be understood that step S401 and step S402 have no necessary sequence, and step S401 may be executed first, and then step S402 may be executed; alternatively, step S402 may be performed first, and then step S401 may be performed; alternatively, step S401 and step S402 may be executed simultaneously, which is not specifically limited in this embodiment of the application.

S403, the terminal device sends HARQ-ACK information of the first PDSCH to the network device on the first PUCCH resource. Accordingly, the network device receives HARQ-ACK information for 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 a time interval between an end symbol of the first PDSCH and a start symbol of the first PUCCH resource indicated by the first information is greater than or equal to a first threshold, and send HARQ-ACK information of the first PDSCH to the network device on the first PUCCH resource when the time interval is greater than or equal to the first threshold. When the time interval is less than the first threshold, no HARQ-ACK information for the first PDSCH is sent to the network device, or a NACK is sent to the network device (regardless of whether the first PDSCH was decoded successfully or not). Wherein, not sending HARQ-ACK information to the network device may be understood as not sending any information to the network device. That is to say, the terminal device does not expect that the time interval is smaller than the first threshold, that is, the first PUCCH resource indicated by the first information sent by the network device needs to satisfy: a time interval between an end symbol of the first PDSCH and a start symbol of the first PUCCH resource is greater than or equal to a first threshold.

Optionally, after receiving the first PDSCH, the terminal device starts a timer after the ending time of the first PDSCH, where a duration of the timer is a first threshold. When the timer is overtime, if the starting time of the first PUCCH resource is not reached, the terminal equipment sends the HARQ-ACK information of the first PDSCH to the network equipment on the first PUCCH resource when the starting time of the first PUCCH resource is reached.

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

In one possible implementation, the first condition may include: the first PDSCH is a non-first transmitted PDSCH of a semi-persistent scheduling (SPS) PDSCH.

The PDSCH which is not transmitted for the first time in the SPS PDSCH can also be understood as the PDSCH which is not scheduled by the DCI, and the PDSCH and the SPS PDSCH can be replaced with each other.

Based on the possible implementation mode, because the non-first transmission of the SPS PDSCH does not need the scheduling of the DCI, the terminal equipment does not need to receive the DCI and decode the DCI, and the PDSCH processing process can not include the decoding of the DCI, so that the PDSCH processing time is reduced, the lowest processing time delay of the PDSCH can be reduced, and the transmission time delay is further reduced.

Optionally, in this implementation, the first condition may further include: in the time window of the first PDSCH, a monitoring occasion (monitoring occasion) of the PDCCH is not configured. Specifically, the following may be mentioned: and in the time window of the first PDSCH, the network equipment does not configure the monitoring opportunity of the PDCCH to the terminal equipment. Wherein the time window may correspond to one or more consecutive symbols in the time domain. For example, one possible implementation manner is that the PDCCH monitoring opportunity configuration indication sent by the network device to the terminal device is: a bit (or element) corresponding to a symbol in a time window in which the first PDSCH is located in the monitoring occasion pattern takes a value of 0.

It can be understood that, for a terminal device, a monitoring occasion when the PDCCH is not configured in a period of time can be understood as: the terminal equipment does not need to perform PDCCH blind detection in the period of time, namely does not need to monitor the PDCCH; for a network device, when the network device does not configure a monitoring opportunity of a PDCCH to a terminal device within a period of time, the network device does not transmit the PDCCH to the terminal device within the period of time.

Optionally, one or more of the length of the time window, the interval between the starting position of the time window and the starting symbol of the first PDSCH, and the interval between the ending position of the time window and the ending symbol of the first PDSCH may be a preset value, and the preset value may be configured from the network device to the terminal device.

Illustratively, there may be a plurality of situations for the time window:

in case one, the time window is a time unit in which the first PDSCH is located.

That is, in the time unit of the first PDSCH, the network device does not configure the terminal device with the monitoring occasion of the PDCCH.

Taking a time unit as a time slot, where one time slot includes 14 symbols as an example, as shown in fig. 5, the time domain position of the first PDSCH is from symbol 3 to symbol 5 in a time slot n +1, that is, the time unit where the first PDSCH is located is the time slot n +1, and the network device does not configure the monitoring opportunity of the PDCCH in the 14 symbols in the time slot n +1 to the terminal device.

In case two, the time window is the symbol occupied by the first PDSCH.

That is, within the symbols occupied by the first PDSCH, the network device does not configure the terminal device with the monitoring occasion of the PDCCH. As shown in fig. 5, the time domain positions of the first PDSCH are symbols 3 to 5 within the slot n + 1. In the symbols 3 to 5 in the slot n +1, the network device does not configure the monitoring timing of the PDCCH to the terminal device, and in the slot n +1, other symbols except for the symbols 3 to 5 may or may not be configured with the monitoring timing of the PDCCH.

Based on the scheme, because the monitoring opportunity of the PDCCH is not configured in the time window where the first PDSCH is located, the terminal device does not need to monitor the PDCCH in the time window, that is, when the first PDSCH is a PDSCH which is not transmitted for the first time in the SPS PDSCH and does not 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 further indicates a second PUCCH resource, where the second PUCCH resource is used to carry HARQ-ACK information of a second PDSCH, the second PDSCH is a PDSCH transmitted for the first time in the SPS PDSCH, and a time interval between an end symbol of the second PDSCH and a start symbol of the second PUCCH is greater than or equal to the second value. Based on the scheme, the network equipment configures the second PUCCH resource for carrying the HARQ-ACK information of the PDSCH transmitted for the first time in the SPS PDSCH, so that the feedback of the HARQ-ACK information of the PDSCH transmitted for the first time can be considered.

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

In the first mode, the first information includes two sets of information: a first set of information and a second set of information.

Wherein the first set of information includes first PUCCH resource indication information and a first timing offset value. The first timing offset value is used to determine a first time unit, where the first time unit is a time unit in which the first PUCCH resource is located, and the first timing offset value may be, for example, an interval between the time unit in which the first PDSCH is located and the first time unit; the first PUCCH resource indication information indicates a position of the first PUCCH resource within the first time unit, e.g., indicates a symbol occupied by the first PUCCH resource within the first time unit.

It is to be understood that a time interval between a start symbol of the first PUCCH resource and an end symbol of the first PDSCH indicated by the first set of information is greater than or equal to a first value.

Wherein the second set of information includes second PUCCH resource indication information and a second timing offset value. The second timing offset value is used to determine a second time unit, where the second time unit is a time unit in which the second PUCCH resource is located, and the second timing offset value may be, for example, an interval between the time unit in which the second PDSCH is located and the second time unit; the second PUCCH resource indication information indicates a position of the second PUCCH resource within the second time unit, e.g., indicates a symbol occupied by the second PUCCH resource within the second time unit.

It is to 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, and at this time, the first timing offset value and the second timing offset value may be represented by the same parameter.

In the second mode, the first information includes first PUCCH resource indication information, second PUCCH resource indication information, a timing offset value, and a first offset value.

The timing offset value may be a first timing offset value or a second timing offset value. When the timing offset value is a first timing offset value, the first offset value is used for determining a second timing offset value by combining the first timing offset value; the first offset value is used to determine the first timing offset value in combination with the second timing offset value when the timing offset value is 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, a resource number of a first PUCCH resource indicated by the first PUCCH resource indication information in a first time unit is the same as a resource number of a second PUCCH resource indicated by the second PUCCH resource indication information in a second time unit, where one resource number in a time unit corresponds to one PUCCH resource in the time unit (including a frequency domain position of the PUCCH resource, a symbol occupied in the time unit, and other transmission parameters), and 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 symbol occupied in the time unit is the same, and the other transmission parameters are the same). That is, in this case, the first PUCCH resource differs from the second PUCCH resource only in the time unit in which it is located.

In a third mode, 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 first PUCCH resource indication information or second PUCCH resource indication information.

And when the PUCCH resource indication information is the first PUCCH resource indication information, the second offset value is used for determining the position of the second PUCCH resource in the second time unit by combining the first PUCCH resource indication information. For example, the first PUCCH resource indication information may be a resource number (referred to as a first resource number in the following embodiments of the present application) corresponding to the first PUCCH resource in the first time unit, and may determine a second resource number according to the second offset value and the first resource number, where correspondingly, the second PUCCH resource is a PUCCH resource corresponding to the second resource number in the second time unit; or, the first PUCCH resource indication information may indicate a time-frequency position and other transmission parameters of the first PUCCH resource, and the second offset value may be a difference value between a number of a starting symbol of the second PUCCH resource and a number of a starting symbol of the first PUCCH resource, and accordingly, a starting symbol of the second PUCCH resource in the second time unit may be determined, and in addition, time-domain lengths of the second PUCCH resource and the first PUCCH resource may be the same, and other transmission parameters may also be the same.

And when the PUCCH resource indication information is second PUCCH resource indication information, the second offset value is used for determining the position of the first PUCCH resource in the first time unit by combining the second PUCCH resource indication information. For example, the second PUCCH resource indication information may be a resource number (i.e., a second resource number) corresponding to the second PUCCH resource in the second time unit, and the first resource number (i.e., a resource number corresponding to the first PUCCH resource in the first time unit) may be determined according to the second offset value and the second resource number, where correspondingly, the first PUCCH resource is a PUCCH resource corresponding to the first resource number in the first time unit; or, the second PUCCH resource indication information may indicate a time-frequency position and other transmission parameters of the second PUCCH resource, and the second offset value may be a difference value between a number of a starting symbol of the first PUCCH resource and a number of a starting symbol of the second PUCCH resource, and accordingly, the starting symbol of the first PUCCH resource in the first time unit may be determined, and in addition, time-domain lengths of the first PUCCH resource and the second PUCCH resource may be the same, and other transmission parameters may be the same.

Optionally, the first timing offset value and the second timing offset value may be the same information, that is, values of the first timing offset value and the second timing offset value may be the same, or a timing offset value corresponding to the first PUCCH resource is the same as a timing offset value corresponding to the second PUCCH resource.

In a fourth mode, the first information includes a timing offset value, PUCCH resource indication information, and a third offset value.

The timing offset value may be a first timing offset value, and correspondingly, the PUCCH resource indication information is first PUCCH resource indication information, and the third offset value is used to determine a second timing offset value in combination with the first timing offset value, and may also be used to determine a second PUCCH resource in combination with the first PUCCH resource indication information.

Or, the timing offset value may be a second timing offset value, and accordingly, the PUCCH resource indication information is second PUCCH resource indication information, and the third offset value is used to determine the first timing offset value by combining the second timing offset value, and may also be used to determine the first PUCCH resource by combining the second PUCCH resource indication information.

The first information may 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 information of the first information may be carried in RRC signaling and another part of the information may be carried in physical layer signaling.

Corresponding to the above four manners, the network device may further indicate the first PUCCH resource and the second PUCCH resource to the terminal device in the following four manners.

In the first mode, the configuration information of the SPS PDSCH includes a part of information of a first timing offset value, first PUCCH resource indication information, a second timing offset value, and second PUCCH resource indication information, and another part of the four information is included in the DCI activating the SPS PDSCH configuration. For example, the configuration information of the SPS PDSCH includes first PUCCH resource indication information and second PUCCH resource indication information, and the DCI activating the SPS PDSCH configuration includes a first timing offset value and a second timing offset value.

In a second mode, the configuration information of the SPS PDSCH includes a part of information of the first PUCCH resource indication information, the second PUCCH resource indication information, the timing offset value, and the first offset value, and the DCI activating the SPS PDSCH configuration includes another part of information of the four information. For example, the configuration information of the SPS PDSCH includes first PUCCH resource indication information, second PUCCH resource indication information, and a first offset value, and the DCI activating the SPS PDSCH configuration includes a timing offset value.

Third, the configuration information of the SPS PDSCH includes a part of information among the first timing offset value, the second timing offset value, the PUCCH resource indication information, and the second offset value, and the DCI activating the SPS PDSCH configuration includes another part of information among the four kinds of information. For example, the configuration information of the SPS PDSCH includes PUCCH resource indication information and a second offset value, and the DCI activating the SPS PDSCH configuration includes a first timing offset value and a second timing offset value.

In a fourth mode, a part of the timing offset value, the PUCCH resource indication information, and the third offset value is included in the configuration information of the SPS PDSCH, and another part of the three information is included in the DCI activating the SPS PDSCH configuration. For example, the configuration information of the SPS PDSCH includes PUCCH resource indication information and a third offset value, and the DCI activating the SPS PDSCH configuration includes a timing offset value.

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

Wherein the feedback alone may be understood as not being fed back together with HARQ-ACKs of other PDSCHs; alternatively, it can be understood as feedback not based on a codebook.

Based on the possible implementation manner, because the HARQ-ACK feedback of the first PDSCH is independent feedback, the HARQ-ACK feedback of other PDSCHs does not need to be waited for, or the HARQ-ACK codebook does not need to be generated, so that the processing time of the PDSCH can be reduced, the lowest processing delay of the PDSCH can be reduced, and the transmission delay is further reduced.

Optionally, in this possible implementation manner, the information transmission method may further include: and the network equipment sends the second information to the terminal equipment. Accordingly, 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 an individual feedback.

Optionally, the second information may be included in DCI for scheduling the first PDSCH, for example, the second information may be located in a specific bit field in the DCI, and when a value of the specific bit field is a preset value, the HARQ-ACK feedback of the first PDSCH is indicated as separate feedback.

Optionally, the specific bit field may be dedicated to indicate whether the HARQ-ACK feedback of the first PDSCH is separate feedback, and may be referred to as a codebook indication bit field, for example, that the codebook bit field may explicitly indicate whether the HARQ-ACK feedback of the first PDSCH is separate feedback, for example, if the size of the codebook bit field is 1 bit and the preset value is 1, when the value of the codebook bit field is "1", the HARQ-ACK feedback of the first PDSCH is indicated as separate feedback.

Alternatively, the specific bit field may have other functions by which it may be indirectly indicated whether the HARQ-ACK feedback of the first PDSCH is a separate 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 a difference between a number of a time unit in which the first PUCCH resource is located and a number of a time unit in which the first PDSCH is located.

For example, when the difference indicated by the value of the timing offset value bit field is a preset difference, the timing offset value bit field may indirectly indicate that the HARQ-ACK feedback of the first PDSCH is a separate feedback. Taking the length of the timing offset value bit field as 3 bits, the value of the timing offset value bit field as "000", and the difference value indicated by "000" as a2 as an example, if the preset difference value is a1, it indicates that the HARQ-ACK feedback of the first PDSCH is not the individual feedback, and if the preset difference value is a2, it indicates that the HARQ-ACK feedback of the first PDSCH is the individual feedback.

Or, for example, when the value of the timing offset value bit field is a preset value, the HARQ-ACK feedback of the first PDSCH is indirectly indicated as separate feedback. Taking the length of the timing offset value bit field as 3 bits, the value of the timing offset value bit field as "000" and the preset value as "000", as an example, the HARQ-ACK feedback of the first PDSCH is indicated as separate feedback (no matter what the difference indicated by "000").

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

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

It can be understood that, when the PUCCH format associated with the PUCCH resource is format 0 or format 1, the PUCCH resource is only allowed to carry 1-bit information, and therefore, when the PUCCH format associated with the first PUCCH resource for carrying 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 HARQ-ACK information of the first PDSCH, or it can be understood that HARQ-ACK feedback of the first PDSCH is separate feedback, so that processing time of the PDSCH can be reduced, so that the minimum processing delay of the PDSCH can be reduced, and further transmission delay can be reduced.

In yet another possible implementation, the first condition may include: the PDSCH HARQ-ACK codebook is not configured. Specifically, the terminal device may not be configured with PDSCH HARQ-ACK codebook for the network device.

Based on the possible implementation manner, since the network device does not configure PDSCH HARQ-ACK codebook to the terminal device, when the terminal device performs HARQ-ACK feedback of the PDSCH, no codebook needs to be generated, so that processing time of the PDSCH is reduced, the lowest processing delay of the PDSCH can be reduced, and further transmission delay is reduced.

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

T₁＝(N₁+d_1,1)(2048+144)*k*T_c*2^-μ1

wherein, T₁Is a first threshold, N₁Is the first number of symbols, d_1,1K is the ratio of the minimum sampling interval of the first communication system to the minimum sampling interval of the second communication system, T is the first added value_cAnd μ 1 is the number of the first subcarrier interval, which is the minimum sampling interval of the second communication system, and the first PDSCH is transmitted in the second communication system. The first subcarrier spacing is a minimum subcarrier spacing among a subcarrier spacing used for scheduling a PDCCH for the first PDSCH, a subcarrier spacing used for the first PDSCH, and a subcarrier spacing used for the first PUCCH. In particular, when the first PDSCH is a PDSCH not transmitted for the first time in the SPS PDSCH, the first subcarrier spacing is the smallest subcarrier spacing of the subcarrier spacing used by the first PDSCH and the subcarrier spacing used by the first PUCCH. The specific description of the parameters in the first formula can be referred to the description of the related parameters in formula a.

Optionally, in this embodiment of the application, the first number of symbols corresponding to the first numerical value is smaller than the first number of symbols corresponding to the second numerical value, and/or the first additional value corresponding to the first numerical value is smaller than the first additional value corresponding to the second numerical value.

For example, under the terminal processing capability #2, the value of the first symbol number corresponding to the first value may be as shown in table 4 below.

TABLE 4

Wherein 6 or 7 (frequency band 1) indicates that the value of the first symbol number corresponding to the first value in the frequency band 1 is 6 or 7, and no value is taken in the frequency band 2; and/represents that the first symbol number corresponding to the first numerical value has no value.

For example, under the terminal processing capability #2, the first additional value corresponding to the first value may be 0.

It should be noted that, according to the first formula, the value of the first threshold, k and T can be obtained_cIs related to μ 1, so that the first value is at k, T_cAnd μ 1 may be different, and likewise the second value is k, T_cAnd μ 1 may be different. In the embodiment of the present application, the first value being smaller than the second value may be: at k, T_cIn the same case as μ 1, the first value is smaller than the second value.

As shown in fig. 6, another information transmission method provided in the embodiment of the present application includes the following steps:

s601, the network equipment sends scheduling information to the terminal equipment. Accordingly, the terminal device receives the scheduling information from the network device.

Wherein the scheduling information is used for scheduling the first PUSCH. And the time interval between the starting symbol of the first PUSCH and the ending symbol of the PDCCH where the scheduling information is located is greater than or equal to a second threshold, the second threshold represents the PUSCH minimum transmission preparation time delay, the value of the second threshold is a third value when a second condition is met, the value of the second threshold is a fourth value when the second condition is not met, and the third value is smaller than the fourth value. The embodiment of the present application is described by taking an example of satisfying the second condition, which will be described in detail in the following embodiment.

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

S602, the terminal equipment sends a first PUSCH to the network equipment. Correspondingly, the network equipment receives the first PUSCH from the terminal equipment.

Optionally, after receiving the scheduling information, the terminal device may determine whether a time interval between a starting symbol of the first PUSCH and an ending symbol of the PDCCH where the scheduling information is located is greater than or equal to a second threshold, and send the first PUSCH when the time interval is greater than or equal to the second threshold. When the time interval is less than the second threshold, the first PUSCH is not transmitted. That is, the terminal device does not expect the time interval to be smaller than the second threshold, that is, the first PUSCH scheduled by the scheduling information sent by the network device needs to satisfy: and the time interval between the starting symbol of the first PUSCH and the ending symbol of the PDCCH where the scheduling information is located is greater than or equal to a second threshold.

Optionally, after receiving the scheduling information, the terminal device starts a timer after the ending time of the PDCCH where the scheduling information is located, where a duration of the timer is a second threshold. And when the timer is over time, the terminal equipment sends a first PUSCH to the network equipment.

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

In one possible implementation, the second condition may include: the data sent on the first PUSCH is retransmission data of the first uplink data.

It can be understood that, since the uplink data that is the same as the initial transmission is retransmitted, that is, the MAC PDU is transmitted in the same way, and the terminal device has generated and stored the MAC PDU when the first uplink data is retransmitted (that is, the first PUSCH is transmitted), the terminal device does not need to perform MAC PDU packaging, thereby reducing the transmission preparation time of the PUSCH, and making the minimum transmission preparation time delay of the PUSCH be reduced, and further the PUSCH can be transmitted earlier, and the transmission time delay is reduced.

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

In another possible implementation, the second condition may include: the data sent on the first PUSCH is retransmission 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 can be understood that after the MAC PDU is assembled, further encoding, rate matching and modulation may be performed, where the redundancy version used needs to be determined during rate matching, and the modulation scheme used needs to be determined during modulation.

In this possible implementation, there may be three cases:

in case one, 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 this embodiment of the application, the first transmission data of the first uplink data is sent on the second PUSCH.

That is, the MCS used for the retransmission of the first uplink data is the same as the MCS used for the initial transmission, and the redundancy version used for 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 first uplink data is initially transmitted, the terminal device may store the data after the code modulation after performing the code modulation on the MAC PDU corresponding to the first uplink data, so that the data after the code modulation is read from the buffer when the first uplink data is retransmitted does not need to be subjected to the code modulation again, and thus the PUSCH transmission preparation time may be reduced, and the transmission delay may be further reduced.

The terminal device may also store the data after rate matching after encoding and rate matching the MAC PDU corresponding to the first uplink data, so that the rate after the encoding and rate matching may be read from the buffer when retransmitting the first uplink data, and encoding and rate matching need not be performed again, thereby reducing the PUSCH transmission preparation delay.

In case two, the MCS used for the first PUSCH is the same as the MCS used for the second PUSCH.

That is, 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 indicated to the terminal device by the network device, that is, the information transmission method may further include: the network device sends indication information to the terminal device, and correspondingly, the terminal device receives the indication information from the network device, where 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"; alternatively, the redundancy version used by the first PUSCH may be determined by the terminal device according to at least one of a redundancy version pattern (pattern) configured by a higher layer, a redundancy version used by the second PUSCH, and M, where M indicates that the first PUSCH is an mth retransmission of the first uplink data, for example, the redundancy version pattern 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 a2 nd retransmission of the first uplink data, and then the terminal device may determine that the redundancy version used by the first PUSCH is "3".

In this case, optionally, when the first uplink data is initially transmitted, the terminal device may store the encoded data after encoding the MAC PDU corresponding to the first uplink data, and after the initial transmission is completed, may read the encoded data from the buffer, determine a coded bit to be transmitted according to the redundancy version used by the first PUSCH, and modulate the coded bit, without encoding again, so that the PUSCH transmission preparation time may be reduced, and the transmission delay may be reduced.

And in case three, 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 to the terminal device; the redundancy version used by the first PUSCH may be indicated to the terminal device by the network device, or may be determined by the terminal device, and reference may be made to the related description of the above case two, which is not described herein again.

Optionally, the terminal device may store the MAC PDU corresponding to the first uplink data during initial transmission, after the initial transmission is completed, read the MAC PDU from the buffer, perform retransmission coding on the MAC PDU, determine a coding bit to be transmitted, modulate the coding bit, then store the data after coding modulation, and when receiving retransmission scheduling, immediately send the data after coding modulation stored in the data, thereby reducing transmission delay.

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

Optionally, the magnitude relationship among the third value #1, the third value #2, and the fourth value may be: fourth value > third value #1> third value # 2.

In yet another possible implementation, the second condition may include: the Transport Block Size (TBS) of the first PUSCH is a preset value.

Optionally, before the network device sends the scheduling information, the network device may indicate, to the terminal device, that the TBS of the PUSCH to be sent by the terminal device is a preset value through a high-level configuration parameter or a physical layer signaling; or before receiving the scheduling information, the terminal device may determine the TBS of the PUSCH to be transmitted by itself, which is not specifically limited in this embodiment of the present application.

Optionally, after determining the TBS of the PUSCH to be transmitted, when data arrives at the MAC layer of the terminal device (for example, the MAC layer receives a Radio Link Control (RLC) PDU, MAC PDU assembly may be performed in advance, and MAC PDU assembly is performed according to scheduling information without waiting for receiving the scheduling information.

Based on the possible implementation mode, the terminal equipment can assemble the MAC PDU in advance, so that the MAC PDU assembly is not required to be carried out again after the scheduling information is received, the PUSCH sending preparation time can be shortened, the PUSCH minimum sending preparation time delay can be shortened, the PUSCH can be sent earlier, and the transmission time delay is shortened.

Optionally, in this possible implementation, the second condition may further include: the HARQ process of the first PUSCH is a preset process, and the preset value is a TBS for performing data transmission using the preset process.

The preset process may be indicated to the terminal device by the network 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, and accordingly, the terminal device may 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 preset value may be indicated to the terminal device by the network device through a high-level configuration parameter or a physical layer signaling, or may be determined by the terminal device according to a corresponding relationship between the HARQ process and the TBS, which is not specifically limited in this embodiment of the present application.

Based on the scheme, when the HARQ process of the first PUSCH is a preset process, the terminal device may store the MAC PDU after assembling the MAC PDU into the HARQ buffer of the preset process, so as to perform coding modulation subsequently.

Optionally, in this possible implementation, the second condition may further include: a 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 a preset version.

Based on the scheme, the terminal equipment can complete coding or complete coding and modulation before receiving the scheduling information, and the PUSCH sending preparation time can be further reduced, so that the PUSCH minimum sending preparation time can be reduced, the PUSCH can be sent earlier, and the transmission delay is reduced.

Optionally, the network device may explicitly indicate the MCS of the first PUSCH to the terminal device, for example, send a number (index) of the MCS of the first PUSCH to the terminal device; alternatively, the network device may implicitly indicate to the terminal device the MCS of the first PUSCH, e.g., the number of physical resources occupied by transmitting the transmission of the first PUSCH to the terminal device, and upon receiving the indication, the terminal device may determine the MCS of the first PUSCH in combination with the TBS of the first PUSCH, where the number of physical resources may be, for example, the number of time domain symbols and/or the number of frequency domain resource blocks.

Optionally, the network device may indicate the information to the terminal device through RRC signaling, or may indicate the information through other manners such as physical layer signaling, which is not specifically limited in this embodiment of the application.

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

T₂＝max((N₂+d_2,1)(2048+144)*k*T_c*2^-μ2,d_2,2)

wherein, T₂Is a second threshold, N₂Is the second number of symbols, d_2,1For the second added value, d_2,2For a third added 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_cAnd the minimum sampling interval of the second communication system is mu 2, the number of the second subcarrier interval is the number of the first PUSCH, and the first PUSCH is transmitted in the second communication system. The second subcarrier interval is the smallest subcarrier interval among the subcarrier intervals used for the PDCCH and the first PUSCH in which the scheduling information is located. The detailed description of the parameters in the second formula can be found in the related description of formula B.

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

It should be noted that, according to the second formula, the values of the second threshold, k and T can be obtained_cIs related to μ 2, so that the third value is at k, T_cAnd μ 2 may be different, and likewise the fourth value is k, T_cAnd μ 2 may be different in the case of different values. In the embodiment of the present application, the third value being smaller than the fourth value may be: at k, T_cIn the same case as μ 2, the third value is smaller than the fourth value.

In addition, an embodiment of the present application further provides an information transmission method, as shown in fig. 7, the information transmission method includes the following steps:

and S701, the network equipment sends the third PDSCH to the terminal equipment. Accordingly, the terminal device receives the third PDSCH from the network device.

S702, the terminal device determines a PUSCH associated with the third PDSCH.

In the embodiment of the present application, the PUSCH associated with the third PDSCH is referred to as a third PUSCH.

A time interval between a starting symbol of the third PUSCH and an ending symbol of the third PDSCH is greater than or equal to a third threshold representing a minimum processing delay from receiving the PDSCH to transmitting the PDSCH associated.

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 transmitted can be understood as the starting time of the PUSCH.

The method for associating the third PUSCH and the third PDSCH will be described in detail in the following embodiments.

And S703, the terminal equipment sends a third PUSCH to the network equipment. Correspondingly, the network device receives a third PUSCH from the terminal device.

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

In one possible implementation, associating the third PUSCH with the third PDSCH 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 this embodiment of the present application may further include:

s700, the network equipment sends the first DCI to the terminal equipment. Accordingly, the terminal device receives the first DCI from the network device.

Wherein the first DCI is used for scheduling a third PDSCH and a third PUSCH.

Optionally, in this case, the step S701 may be: the terminal equipment receives a third PDSCH from the network equipment according to the first DCI; the step S702 may be: and the terminal equipment determines a third PUSCH according to the first DCI, namely, the PUSCH scheduled by the first 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:

in the first mode, the first DCI may include time domain resource indication information of the third PDSCH and time domain resource indication information of the third PUSCH.

Optionally, the time domain resource indication information of the third PDSCH may indicate a third time unit and a position of the third PDSCH in the third time unit, where the third time unit is a 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 starting symbol of the third PDSCH is located and the number of the time unit where the ending symbol of the PDCCH where the first DCI is located is, and the information of the symbol occupied by the third PDSCH in the third time unit.

Optionally, the time domain resource indication information of the third PUSCH may indicate positions of the fourth time unit and the third PUSCH in the fourth time unit, where the fourth time unit is a time unit in which the third PUSCH is located. For example, the time domain resource indication information of the third PUSCH may include: the difference value between the number of the time unit where the starting symbol of the third PUSCH is located and the number of the time unit where the ending symbol of the PDCCH where the first DCI is located, and the information of the symbol occupied by the third PUSCH in the fourth time unit.

In the second method, the first DCI includes time domain resource indication information, offset information, and position indication information of the third PDSCH.

The offset information is used for determining a time unit where the third PUSCH is located, and the position information indicates the position of the third PUSCH in the time unit where the third PUSCH is located.

Optionally, the time domain resource indication information of the third PDSCH may refer to the related description in the first manner; the offset information may be, for example, a difference between the number of a time element (fourth time element) in which the third PUSCH is located and the number of a time element (third time element) in which the third PDSCH is located; the location indication information may be, for example, information of a symbol occupied by the third PUSCH in the fourth time unit.

Optionally, the location information may also indicate frequency domain location information of the third PUSCH, for example, the network device may configure a set of candidate PUSCHs (including time-frequency locations of PUSCHs) in the fourth time unit, and then the location information may be a number of one PUSCH in the set of candidate PUSCHs, where the candidate PUSCH corresponding to the number is the third PUSCH.

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

For example, the third PUSCH scheduled by the third PDSCH may be: the third PDSCH carries scheduling information of the third PUSCH.

Optionally, in this implementation, step S702 may be: and the terminal equipment determines a third PUSCH according to the scheduling information carried by the third PDSCH.

Optionally, the third PDSCH may be scheduled by a second DCI, which may indicate a time domain location of the third PDSCH; alternatively, the third PDSCH may be an SPS PDSCH, and the time domain location of the third PDSCH is jointly determined by the configuration information of the SPS PDSCH and the DCI activating the SPS PDSCH configuration.

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 positions of a fourth time unit and the third PUSCH in the fourth time unit, where the fourth time unit is a time unit in which the third PUSCH is located. For example, the time domain resource indication information of the third PUSCH may include: the difference value 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 information of the symbol occupied by the third PUSCH in the fourth time unit.

Optionally, the third PDSCH may further include frequency domain resource indication information of the third PUSCH, for example, the network device may configure a set of candidate PUSCHs (including time-frequency positions of PUSCHs) in the fourth time unit, and then the third PDSCH may include a number of one PUSCH in the set of candidate PUSCHs, where the candidate PUSCH corresponding to the number is the third PUSCH.

In yet another possible implementation, the associating the third PUSCH with the third PDSCH may include: the third PDSCH is an SPS PDSCH, and the third PUSCH is a CGPUSCH, where the third PDSCH is a PDSCH transmitted on the first SPS PDSCH occasion of the SPS PDSCH, and correspondingly, the third PUSCH is a PDSCH transmitted on the first CG PUSCH occasion of the CG PUSCH, and the first CG PUSCH occasion is the first CG PUSCH occasion after the first SPS PDSCH occasion, or the first CG occasion is the first CG PUSCH occasion after the end symbol of the first SPS PDSCH occasion starts for a certain duration. That is, the third PUSCH is the first PUSCH positioned after the third PDSCH in the CG PUSCHs; or, the third PUSCH is the first PUSCH of the CG PUSCHs after a certain duration from the end symbol of the third PDSCH.

Optionally, the specific time period may be configured by a higher layer parameter or predefined, and the specific time period may be equal to a third threshold, for example.

Optionally, the period of the SPS PDSCH may be the same as or different from the period of the CG PUSCH, which is not specifically limited in this embodiment of the application.

Optionally, in various implementations described above, associating the third PUSCH with the third PDSCH may further include: when the decoding of the third PDSCH is unsuccessful, not sending the third PUSCH; alternatively, the transmission of the third PUSCH is dependent on the third PDSCH decoding success. For example, for many control applications in an intelligent factory, the original data for uplink data transmission must wait until the downlink data is decoded successfully before being generated, and therefore the processing for uplink data transmission is performed after the downlink data is received successfully.

Optionally, in this embodiment of the present application, a value of the third threshold is related to a capability of the terminal device, a subcarrier interval corresponding to the third PDSCH, and a subcarrier interval corresponding to the third PUSCH; the third threshold is greater than the first threshold or the second threshold.

Optionally, the third threshold may be determined by a third number of symbols and a fourth additional value, where the third number of symbols is greater than the first number of symbols corresponding to the second value, or the third number of symbols is greater than the second number of symbols corresponding to the fourth value, or the third number of symbols is greater than the first number of symbols corresponding to the second value and greater than the second number of symbols corresponding to the fourth value.

Optionally, the third number of symbols may be a sum of a second number of symbols corresponding to the second value and a second offset value, where the second offset value may be a preset value and its unit is a symbol. For example, the second offset value may be 1 or 2; or, when the subcarrier interval used by the third PDSCH is 15kHz, the second offset value is 1, when the subcarrier interval used by the third PDSCH is 60kHz, the second offset value is 2, and when the subcarrier interval used by the third PDSCH is 30kHz, the second offset value is 1 or 2, which is not specifically limited in this embodiment of the present application. Illustratively, the value of the third symbol number may be as shown in table 5 below:

TABLE 5

Wherein 12 or 13 (frequency band 1) indicates that the value of the number of the third symbols in the frequency band 1 is 12 or 13, and no value is taken in the frequency band 2; and/means that the third number of symbols has no value.

The actions of the network device of the above steps S401 to S403, S601 to S602, and S700 to S703 may 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, and the actions of the terminal device of the above steps S401 to S403, S601 to S602, and S700 to S703 may be executed by the processor 401 in the terminal device 40 shown in fig. 2 calling the application code stored in the memory 402 to instruct the terminal device to execute.

It is to be understood that, in the embodiments of the present application, a terminal device or a network device may perform some or all of the steps in the embodiments of the present application, and these steps are merely examples, and the embodiments of the present application may also perform other steps or various modifications of the steps. Moreover, the various steps may be performed in a different order presented in the embodiments of the application, and not all of the steps in the embodiments of the application may be performed.

It is to be understood that the various numerical references referred to in the embodiments of the present application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of the present application. The sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of the processes should be determined by their functions and inherent logic.

It is to be understood that, in the above embodiments, the method and/or the step implemented by the terminal device may also be implemented by a component (e.g., a chip or a circuit) available for the terminal device, and the method and/or the step implemented by the network device may also be implemented by a component (e.g., a chip or a circuit) available for the network device.

The above-mentioned scheme provided by the embodiment of the present application is introduced mainly from the perspective of interaction between network elements. Correspondingly, the embodiment of the application also provides a communication device, and the communication device is used for realizing the various methods. The communication device may be the terminal device in the above method embodiment, or a device including the above terminal device, or a component that can be used for the terminal device; alternatively, the communication device may be the network device in the above method embodiment, or a device including the above network device, or a component that can be used for the network device.

It is to be understood that the communication device comprises corresponding hardware structures and/or software modules for performing the respective functions in order to realize the above-mentioned functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

Fig. 8 and 9 are schematic structural diagrams of a possible communication device provided in an embodiment of the present application. These communication devices can be used to implement the functions of the terminal device or the network device in the above method embodiments, so that the beneficial effects of the above method embodiments can also be achieved. In the embodiment of the present application, the communication apparatus may be the terminal device 40 shown in fig. 1, the network device 30 shown in fig. 1, or a module (e.g., a chip) applied to the terminal device or the network device.

In the embodiment of the present application, the communication apparatus may be divided into functional modules according to the 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 integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.

As shown in fig. 8, the communication device 80 includes a receiving module 801 and a transmitting module 802. Optionally, the communication device may further include a processing module 803. The communication device 80 is used to implement the functions of the terminal device or the network device in the method embodiments shown in fig. 4, fig. 6, or fig. 7.

When the communication device 80 is used to implement the functions of the terminal device in the method embodiment shown in fig. 4: a receiving module 801, configured to receive a first PDSCH and first information from a network device, where the first information indicates a first PUCCH resource; a sending module 802, configured to send HARQ-ACK information of the first PDSCH to the network device on the first PUCCH resource; a processing module 803, configured to demodulate and decode data carried in the first PDSCH, and generate HARQ-ACK information of the first PDSCH.

Optionally, the receiving module 801 is further configured to receive second information from the network device, where the second information indicates that HARQ-ACK feedback of the first PDSCH is separate feedback.

When the communication device 80 is used to implement the functions of the network device in the method embodiment shown in fig. 4: a sending module 802, configured to send a first PDSCH and first information to a terminal device, where the first information indicates a first PUCCH resource; a receiving module 801, configured to receive HARQ-ACK information of a first PDSCH from a terminal device on a first PUCCH resource; a processing module 803, configured to perform code modulation on data carried in the first PDSCH, and process HARQ-ACK information of the first PDSCH.

Optionally, the sending module 802 is further configured to send second information to the terminal device, where the second information indicates that the HARQ-ACK feedback of the first PDSCH is separate feedback.

When the communication device 80 is used to implement the functions of the terminal device in the method embodiment shown in fig. 6: a receiving module 801, configured to receive scheduling information from a network device, where the scheduling information is used for scheduling a first PUSCH; a sending module 802, configured to send a first PUSCH to a network device; a processing module 803, configured to process the scheduling information and perform code modulation on the data carried in the first PUSCH.

Optionally, the receiving module 801 is further configured to receive indication information from the network device, where the indication information indicates a redundancy version of the first PUSCH.

When the communication device 80 is used to implement the functions of the network device in the method embodiment shown in fig. 6: a sending module 802, configured to send scheduling information to a terminal device, where the scheduling information is used to schedule a first PUSCH; a receiving module 801, configured to receive a first PUSCH from a terminal device; a processing module 803, configured to demodulate and decode the data carried in the first PUSCH.

Optionally, the sending module 802 is further configured to send, to the terminal device, indication information indicating the redundancy version of the first PUSCH.

When the communication device 80 is used to implement the functions of the terminal device in the method embodiment shown in fig. 7: a receiving module 801, configured to receive a third PDSCH from a network device; a processing module 803 for determining a third PUSCH associated with the third PDSCH; a sending module 802, configured to send a third PUSCH to the network device; a processing module 803, configured to demodulate and decode the data carried in the third PDSCH, and perform coding and modulation on the data carried in the third PUSCH.

When the communication device 80 is used to implement the functions of the network device in the method embodiment shown in fig. 7: a sending module 802, configured to send a third PDSCH to a terminal device; a receiving module 801, configured to receive a third PUSCH from a terminal device, where the third PUSCH is associated with a third PDSCH; a processing module 803, configured to perform coding modulation on the data carried in the third PDSCH and perform demodulation decoding on the data carried in the third PUSCH.

All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

In the present embodiment, the communication device 80 is presented in a form of dividing each functional module in an integrated manner. A "module" herein may refer to a specific circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other devices that may provide the functionality described above. In a simple embodiment, those skilled in the art may appreciate 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 apparatus 80 is used to implement the functions of the terminal device in the method embodiments shown in fig. 4, fig. 6, or fig. 7, the processor 401 in the terminal device 40 shown in fig. 2 may cause the communication apparatus 80 to execute the information transmission method in the above method embodiments by calling a computer stored in the memory 402 to execute the instructions; when the communication apparatus 80 is used to implement the functions of the network device in the method embodiments shown in fig. 4, fig. 6, or fig. 7, the processor 301 in the network device 30 shown in fig. 2 may execute the instructions by calling the computer stored in the memory 302, so that the communication apparatus 80 executes the information transmission method in the above-described method embodiments.

Since the communication device 80 provided in this embodiment can execute the information transmission method, the technical effects obtained by the communication device can refer to the method embodiments, and are not described herein again.

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 is 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 for storing input data required by the processor 901 to execute the instructions or for storing data generated by the processor 901 after executing 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 configured to implement the functions of the processing module 803, and the interface circuit 902 is configured to implement the functions of the receiving module 801 and the sending module 802.

When the communication device is a chip applied to a terminal device, the terminal device chip implements the functions of the terminal device in the above method embodiment. The terminal device chip receives information from other modules (such as a radio frequency module or an antenna) in the terminal device, wherein the information is sent to the terminal device by the network device; or, the terminal device chip sends information to other modules (such as a radio frequency module or an antenna) in the terminal device, where the information is sent by the terminal device to the network device.

When the communication device is a chip applied to a network device, the network device chip implements the functions of the network device in the above method embodiments. The network device chip receives information from other modules (such as a radio frequency module or an antenna) in the network device, wherein the information is sent to the network device by the terminal device; alternatively, the network device chip sends information to other modules (such as a radio frequency module or an antenna) in the network device, and the information is sent by the network device to the terminal device.

Optionally, an embodiment of the present application further provides a communication device, where the communication device includes a processor, and is configured to implement the method in any of the above method embodiments. In one possible design, the communication device further includes a memory. The memory for storing the necessary program instructions and data, the processor may call the program code stored in the memory to instruct the communication device to perform the method of any of the above-described 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, and may also include a chip and other discrete devices, which is not specifically limited in this embodiment of the present application.

The method steps in the embodiments of the present application may be implemented by hardware, or may be implemented by software instructions executed by a processor. The software instructions may consist of corresponding software modules that may be stored in Random Access Memory (RAM), flash memory, read-only memory (ROM), programmable ROM, Erasable PROM (EPROM), Electrically EPROM (EEPROM), registers, a hard disk, a removable hard disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may reside in a network device or a terminal device. Of course, the processor and the storage medium may reside as discrete components in a network device or a terminal device.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, a network appliance, a user device, or other programmable apparatus. The computer program or instructions 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 instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire or wirelessly. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that integrates one or more available media. The usable medium may be a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape; or optical media such as Digital Video Disks (DVDs); it may also be a semiconductor medium, such as a Solid State Drive (SSD).

In the embodiments of the present application, unless otherwise specified or conflicting with respect to logic, the terms and/or descriptions in different embodiments have consistency and may be mutually cited, and technical features in different embodiments may be combined to form a new embodiment according to their inherent logic relationship.

In the description of the present application, a "/" indicates a relationship in which the objects associated before and after are an "or", for example, a/B may indicate a or B; in the present application, "and/or" is only an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural.

In the description of the present application, "a" or "an" does not exclude a plurality, and "a plurality" means two or more than two. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, B, c, a-B, a-c, B-c, or a-B-c, wherein "-" indicates that the objects related to each other are in a "and" relationship, for example, a-B may indicate that a and B, and a, B, c may be single or multiple.

In addition, in order to facilitate clear description of technical solutions of the embodiments of the present application, in the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same items or similar items having substantially the same functions and actions. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance.

Claims

1. An information transmission method, characterized in that the method comprises:

receiving a first Physical Downlink Shared Channel (PDSCH) and first information from network equipment, wherein the first information indicates a first Physical Uplink Control Channel (PUCCH) resource;

and sending hybrid automatic repeat request acknowledgement (HARQ-ACK) information of the first PDSCH to the network equipment on the first PUCCH resource, wherein a time interval between an ending symbol of the first PDSCH and a starting symbol of the first PUCCH resource is greater than or equal to a first threshold, the first threshold represents PDSCH minimum processing delay, when a first condition is met, a value of the first threshold is a first numerical value, when the first condition is not met, a value of the first threshold is a second numerical value, and the first numerical value is smaller than the second numerical value.

2. The method of claim 1, wherein the first condition comprises: the first PDSCH is a PDSCH which is not transmitted for the first time in a semi-persistent scheduling (SPS) PDSCH.

3. The method of claim 2, wherein the first condition further comprises: and in the time unit of the first PDSCH, the monitoring opportunity of a Physical Downlink Control Channel (PDCCH) is not configured.

4. The method of claim 2 or 3, wherein the first information further indicates a second PUCCH resource used for carrying HARQ-ACK information of a second PDSCH, wherein the second PDSCH is a PDSCH transmitted for the first time in the SPS PDSCH, and wherein a time interval between an end symbol of the second PDSCH and a start symbol of the second PUCCH resource is greater than or equal to the second numerical value.

5. The method of claim 1, wherein the first condition comprises: the HARQ-ACK feedback of the first PDSCH is a single feedback.

6. The method of claim 5, further comprising:

receiving second information from the network device, the second information indicating that HARQ-ACK feedback of the first PDSCH is separate feedback.

7. The method of claim 1, wherein the first condition comprises: the PUCCH format associated with the first PUCCH resource is format 0 or format 1.

8. The method of claim 1, wherein the first condition comprises: the PDSCH HARQ-ACK codebook is not configured.

9. The method of any of claims 1-8, wherein the first threshold satisfies a first formula:

T₁＝(N₁+d_1,1)(2048+144)*k*T_c*2^-μ1

wherein, T₁Is the first threshold, N₁Is the first number of symbols, d_1,1K is the ratio of the minimum sampling interval of the first communication system to the minimum sampling interval of the second communication system, T is the first added value_cFor a minimum sampling interval of the second communication system, μ 1 is a number of a first subcarrier interval, the first PDSCH is transmitted in the second communication system, and the first subcarrier interval is a smallest subcarrier interval among a subcarrier interval used by the first PDSCH, a subcarrier interval used by a PDCCH for scheduling the first PDSCH, and a subcarrier interval used by the first PUCCH, or the first subcarrier interval is a smallest subcarrier interval among a subcarrier interval used by the first PDSCH and a subcarrier interval used by the first PUCCH;

the first number of symbols corresponding to the first numerical value is smaller than the first number of symbols corresponding to the second numerical value, and/or the first additional value corresponding to the first numerical value is smaller than the first additional value corresponding to the second numerical value.

10. The method of any of claims 1-9, wherein the second value is a PDSCH minimum processing delay specified in release 15 or release 16 of the third generation partnership project 3 GPP.

11. An information transmission method, characterized in that the method comprises:

sending a first Physical Downlink Shared Channel (PDSCH) and first information to terminal equipment, wherein the first information indicates a first Physical Uplink Control Channel (PUCCH) resource;

receiving hybrid automatic repeat request acknowledgement (HARQ-ACK) information of the first PDSCH from the terminal equipment on the first PUCCH resource, wherein a time interval between an end symbol of the first PDSCH and a start symbol of the first PUCCH resource is greater than or equal to a first threshold, the first threshold represents PDSCH minimum processing delay, when a first condition is met, a value of the first threshold is a first numerical value, when the first condition is not met, a value of the first threshold is a second numerical value, and the first numerical value is smaller than the second numerical value.

12. The method of claim 11, wherein the first condition comprises: the first PDSCH is a PDSCH which is not transmitted for the first time in a semi-persistent scheduling (SPS) PDSCH.

13. The method of claim 12, wherein the first condition further comprises: and in the time unit of the first PDSCH, the monitoring opportunity of a Physical Downlink Control Channel (PDCCH) is not configured.

14. The method of claim 12 or 13, wherein the first information further indicates a second PUCCH resource for carrying HARQ-ACK information for a second PDSCH, wherein the second PDSCH is a first transmitted PDSCH of the SPS PDSCH, and wherein a time interval between an end symbol of the second PDSCH and a start symbol of the second PUCCH resource is greater than or equal to the second value.

15. The method of claim 11, wherein the first condition comprises: the HARQ-ACK feedback of the first PDSCH is a single feedback.

16. The method of claim 15, further comprising:

and sending second information to the terminal equipment, wherein the second information indicates that the HARQ-ACK feedback of the first PDSCH is independent feedback.

17. The method of claim 11, wherein the first condition comprises: the PUCCH format associated with the first PUCCH resource is format 0 or format 1.

18. The method of claim 11, wherein the first condition comprises: the PDSCH HARQ-ACK codebook is not configured.

19. The method of any of claims 11-18, wherein the first threshold satisfies a first formula:

T₁＝(N₁+d_1,1)(2048+144)*k*T_c*2^-μ1

wherein, T₁Is the first threshold, N₁Is the first number of symbols, d_1,1K is the ratio of the minimum sampling interval of the first communication system to the minimum sampling interval of the second communication system, T is the first added value_cAnd μ 1 is a number of a first subcarrier interval, the first PDSCH is transmitted in the second communication system, the first subcarrier interval is a smallest subcarrier interval among a subcarrier interval used by the first PDSCH, a subcarrier interval used by a PDCCH for scheduling the first PDSCH, and a subcarrier interval used by the first PUCCH, or the first subcarrier interval is a smallest subcarrier interval among a subcarrier interval used by the first PDSCH and a subcarrier interval used by the first PUCCHWave spacing;

20. The method of any of claims 11-19, wherein the second value is a PDSCH minimum processing delay specified in release 15 or release 16 of the third generation partnership project 3 GPP.

21. A communications device comprising means for performing a method according to any one of claims 1 to 10 or means for performing a method according to any one of claims 11 to 20.

22. A communications device comprising a processor and interface circuitry for receiving and transmitting signals from or sending signals to a communications device other than the communications device, the processor being arranged to implement the method of any of claims 1 to 10 or the method of any of claims 11 to 20 by means of logic circuitry or executing code instructions.

23. A computer-readable storage medium, in which a computer program or instructions is stored which, when executed by a communication apparatus, implements the method of any one of claims 1 to 10, or implements the method of any one of claims 11 to 20.