CN110943815B

CN110943815B - HARQ-ACK transmission method, terminal equipment and network equipment

Info

Publication number: CN110943815B
Application number: CN201811110560.7A
Authority: CN
Inventors: 高雪娟
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2018-09-21
Filing date: 2018-09-21
Publication date: 2021-06-29
Anticipated expiration: 2038-09-21
Also published as: WO2020057565A1; CN110943815A

Abstract

The invention discloses a transmission method of HARQ-ACK, terminal equipment and network equipment, which are used for providing a new mechanism for determining how to transmit the HARQ-ACK on a PUSCH (physical uplink shared channel) so as to reduce downlink transmission delay and ensure that data and the final HARQ-ACK can be subjected to correct rate matching. The transmission method of the HARQ-ACK comprises the following steps: and if the physical uplink control channel PUCCH carrying the HARQ-ACK is overlapped with the first type of physical uplink shared channel PUSCH, determining that the downlink-transmitted HARQ-ACK corresponding to the first type of physical downlink control channel PDCCH is not transmitted on the first type of PUSCH.

Description

HARQ-ACK transmission method, terminal equipment and network equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a transmission method of HARQ-ACK, a terminal device, and a network device.

Background

In a radio air interface (NR) technology of a fifth Generation mobile communication technology (5Generation, 5G) network, repeated transmission of a Physical Uplink Shared Channel (PUSCH) is supported, and when a Physical Uplink Control Channel (PUCCH) overlaps with a time domain resource of the PUSCH, Uplink Control Information (UCI) carried on the PUCCH is transferred to the PUSCH for transmission, thereby avoiding parallel transmission of multiple channels.

For a plurality of PUSCH transmissions scheduled by one Uplink scheduling grant (UL) grant, the UL grant can only be used for determining Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) transmission on the first PUSCH, while for subsequent PUSCHs, HARQ-ACK of downlink transmission occurring after the UL grant is not currently supported for transmission on these PUSCHs, which may cause excessive downlink transmission delay, thereby affecting system throughput.

For a PUSCH without a corresponding Physical Downlink Control Channel (PDCCH), there is currently no mechanism to define which Downlink transmissions can be HARQ-ACK fed back on the PUSCH. According to the existing mechanism, as long as the time slot where the PUSCH is located needs to be fed back is determined according to the HARQ-ACK feedback time sequence, if the PUCCH carrying the HARQ-ACK is overlapped with the PUSCH, the HARQ-ACK can be transmitted on the PUSCH, and when the certain downlink transmission occurrence time is later than the time when the PUSCH starts to be prepared, the PUSCH cannot obtain the final HARQ-ACK bit number during the preparation, so that the data and the final HARQ-ACK cannot be subjected to correct rate matching.

Disclosure of Invention

The embodiment of the invention provides a transmission method of HARQ-ACK, terminal equipment and network equipment, which are used for providing a new mechanism for determining how to transmit the HARQ-ACK on a PUSCH (physical uplink shared channel) so as to reduce downlink transmission delay and improve the accurate rate matching of data and the final HARQ-ACK.

In a first aspect, a method for transmitting HARQ-ACK is provided, where the method includes:

and if the physical uplink control channel PUCCH carrying the HARQ-ACK is overlapped with the first type of physical uplink shared channel PUSCH, determining that the downlink-transmitted HARQ-ACK corresponding to the first type of physical downlink control channel PDCCH is not transmitted on the first type of PUSCH.

In the embodiment of the invention, when the PUCCH bearing the HARQ-ACK is overlapped with the first type PUSCH, the HARQ-ACK of the downlink transmission corresponding to the first type PDCCH is determined not to be transmitted on the first type PUSCH. That is, when the HARQ-ACK is transmitted on the first-class PUSCH, a reference time is determined according to a predetermined processing delay, and the PDSCH scheduled by the PDCCH after the reference time cannot transmit the HARQ-ACK on the first-class PUSCH, so that it is determined which PDSCHs can perform the HARQ-ACK at a certain time slot, thereby avoiding delaying the HARQ-ACK feedback of the PDSCH to be transmitted after another time slot, greatly compressing the feedback delay of downlink transmission, improving the system transmission efficiency, and enabling data and the final HARQ-ACK to perform correct rate matching.

Optionally, determining that HARQ-ACK of downlink transmission corresponding to a first type physical downlink control channel PDCCH is not transmitted on the first type PUSCH, further includes:

determining that simultaneous transmission of PUCCH and PUSCH is not supported or configured; and/or the presence of a gas in the gas,

determining that the PUCCH and the first type PUSCH satisfy a time condition for transferring HARQ-ACK carried on the PUCCH to PUSCH for transmission.

Optionally, determining that the HARQ-ACK of the downlink transmission corresponding to the first type physical downlink control channel PDCCH is not transmitted on the first type PUSCH includes:

generating NACK for the position corresponding to the downlink transmission corresponding to the first type PDCCH in the HARQ-ACK codebook transmitted on the PUSCH; or,

removing HARQ-ACK corresponding to downlink transmission corresponding to the first type PDCCH from the HARQ-ACK codebook transmitted on the PUSCH; or,

and when the HARQ-ACK codebook transmitted on the PUSCH is generated, not including the HARQ-ACK of the downlink transmission corresponding to the first type PDCCH.

Optionally, the downlink transmission corresponding to the first type PDCCH includes at least one of the following downlink transmissions:

a Physical Downlink Shared Channel (PDSCH) scheduled by the first type PDCCH;

an SPS PDSCH release indicated by the first type PDCCH;

and the PDCCH indicates the release of the downlink SPS resources and is a first type PDCCH.

Optionally, the first type of PUSCH includes at least one of the following PUSCHs:

there is no PUSCH scheduled by the corresponding PDCCH;

PUSCHs, except for the first PUSCH, of at least two independent PUSCHs scheduled by the same PDCCH;

and PUSCHs except the first PUSCH in the PUSCHs subjected to repeated transmission for a plurality of times.

Optionally, the first type PDCCH is:

a PDCCH transmitted after a first time domain position, wherein the first time domain position is:

a virtual PDCCH position corresponding to the PUSCH; or,

a Tth symbol before a first symbol of the PUSCH, wherein T is a predetermined time delay; or,

a predetermined downlink symbol or a Flexible flex symbol or a PDCCH detection opportunity which satisfies a preset condition; wherein the preset conditions are as follows:

before the first symbol of the PUSCH, and the interval with the first symbol is not lower than the T symbols, wherein T is a preset time delay;

or,

in a Kth time slot before the time slot of the PUSCH, wherein K is a scheduling timing value corresponding to the first PUSCH;

or,

and in a time slot which is before the time slot of the PUSCH and has a time slot interval with the time slot of the PUSCH not lower than K time slots, wherein K is a scheduling timing value corresponding to the first PUSCH.

Optionally, the virtual PDCCH positions are:

a predetermined downlink symbol or a Flexible symbol or a PDCCH detection opportunity which meets a preset condition; wherein the preset conditions are as follows:

or,

Optionally, the definition of T is one of the following definitions:

wherein mu is the number of the minimum subcarrier interval in PDCCH, PUCCH and PUSCH; z is the required time delay of the A-CSI; d is the number of symbols overlapped between the PDCCH and the scheduled PDSCH; d if the first symbol of PUSCH only contains demodulation reference signal (DMRS)_2,1Not more than 0, otherwise d _2,11 is ═ 1; d if the PDCCH for scheduling PUSCH triggers BWP handover of bandwidth part_2,2Time required for a predetermined BWP handover, otherwise d_2,2＝0；T_cIs the basic time unit in NR, κ is the ratio between the basic time unit of long term evolution, LTE, and the basic time unit of NR;

if the first-class PUSCH does not exist in the PUSCH scheduled by the corresponding PDCCH, T is a scheduling timing value indicated in the PDCCH for activating the transmission of the first-class PUSCH;

if the first-class PUSCH is a PUSCH except a first PUSCH in at least two independent PUSCHs scheduled by the same PDCCH, T is a scheduling timing value indicated in the PDCCH;

and if the first-class PUSCH is a PUSCH except the first PUSCH in the PUSCHs subjected to repeated transmission for multiple times, T is a scheduling timing value indicated in a PDCCH for scheduling the repeated transmission of the PUSCHs.

Alternatively to this, the first and second parts may,

the predetermined downlink symbol is the latest downlink symbol meeting the preset condition, or the first downlink symbol in the time slot meeting the preset condition;

the Flexible symbol is the latest Flexible symbol meeting the preset condition, or the first Flexible symbol in the time slot meeting the preset condition;

the PDCCH detection opportunity is the latest PDCCH detection opportunity in the preset condition, or the first PDCCH detection opportunity in the time slot meeting the preset condition.

In a second aspect, a transmission method of HARQ-ACK is provided, the transmission method including:

and if the physical uplink control channel PUCCH bearing the HARQ-ACK is overlapped with the first type of physical uplink shared channel PUSCH, not receiving the HARQ-ACK of downlink transmission corresponding to the first type of physical downlink control channel PDCCH on the first type of PUSCH according to the feedback bit number of the HARQ-ACK.

Optionally, before receiving the HARQ-ACK of the downlink transmission corresponding to the first type physical downlink control channel PDCCH according to the feedback bit number of the HARQ-ACK on the first type PUSCH, the method further includes:

determining that the terminal equipment does not support or is not configured with simultaneous transmission of a PUCCH and a PUSCH; and/or the presence of a gas in the gas,

Optionally, not receiving the HARQ-ACK of the downlink transmission corresponding to the first type physical downlink control channel PDCCH on the first type PUSCH according to the feedback bit number of the HARQ-ACK includes:

removing the HARQ-ACK corresponding to the first type PDCCH from the HARQ-ACK codebook transmitted on the PUSCH; or,

Optionally, the downlink transmission scheduled by the first type PDCCH includes at least one of the following downlink transmissions:

a Physical Downlink Shared Channel (PDSCH) scheduled by the first type PDCCH;

an SPS PDCCH release indicated by the first type PDCCH;

there is no PUSCH scheduled by the corresponding PDCCH;

Optionally, the first type PDCCH is:

a virtual PDCCH position corresponding to the PUSCH; or,

a Tth symbol before a first symbol of the PUSCH, wherein T is a predetermined time delay;

or,

Optionally, the virtual PDCCH positions are:

or,

Optionally, the definition of T is one of the following definitions:

wherein mu is the number of the minimum subcarrier interval in PDCCH, PUCCH and PUSCH; z is the required time delay of the A-CSI; d is the number of symbols overlapped between the PDCCH and the scheduled PDSCH; d if the first symbol of PUSCH only contains demodulation reference signal (DMRS)_2,1Not more than 0, otherwise d _2,11 is ═ 1; d if the PDCCH for scheduling PUSCH triggers BWP handover of bandwidth part_2,2Time required for a predetermined BWP handover, otherwise d_2,2＝0；T_cIs the basic time unit in NR, and kappa is the basic time unit of LTE and NRThe ratio of (A) to (B);

Alternatively to this, the first and second parts may,

In a third aspect, a terminal device is provided, which includes:

a memory to store instructions;

a processor for reading the instructions in the memory, performing the following processes:

if the physical uplink control channel PUCCH bearing the HARQ-ACK is overlapped with a first type physical uplink shared channel PUSCH, determining that the HARQ-ACK of downlink transmission corresponding to the first type physical downlink control channel PDCCH is not transmitted on the first type PUSCH;

a transceiver for transceiving data under control of the processor.

Optionally, the processor is further configured to:

Optionally, the processor is specifically configured to:

a Physical Downlink Shared Channel (PDSCH) scheduled by the first type PDCCH;

an SPS PDSCH release indicated by the first type PDCCH;

there is no PUSCH scheduled by the corresponding PDCCH;

Optionally, the first type PDCCH is:

a virtual PDCCH position corresponding to the PUSCH; or,

or,

Optionally, the virtual PDCCH positions are:

or,

Optionally, the definition of T is one of the following definitions:

Alternatively to this, the first and second parts may,

In a fourth aspect, a network device is provided, the network device comprising:

a memory to store instructions;

if the physical uplink control channel PUCCH bearing the HARQ-ACK is overlapped with a first type physical uplink shared channel PUSCH, not receiving the HARQ-ACK of downlink transmission corresponding to the first type physical downlink control channel PDCCH on the first type PUSCH according to the feedback bit number of the HARQ-ACK;

a transceiver for transceiving data under control of the processor.

Optionally, the processor is further configured to:

Optionally, the processor is specifically configured to:

a Physical Downlink Shared Channel (PDSCH) scheduled by the first type PDCCH;

an SPS PDCCH release indicated by the first type PDCCH;

there is no PUSCH scheduled by the corresponding PDCCH;

Optionally, the first type PDCCH is:

a virtual PDCCH position corresponding to the PUSCH; or,

or,

Optionally, the virtual PDCCH positions are:

or,

Optionally, the definition of T is one of the following definitions:

Alternatively to this, the first and second parts may,

In a fifth aspect, a terminal device is provided, which includes:

and the determining unit is used for determining that the downlink-transmitted HARQ-ACK corresponding to the first type physical downlink control channel PDCCH is not transmitted on the first type PUSCH if the physical uplink control channel PUCCH carrying the HARQ-ACK is overlapped with the first type physical uplink shared channel PUSCH.

Optionally, the determining unit is further configured to:

Optionally, the determining unit is specifically configured to:

a Physical Downlink Shared Channel (PDSCH) scheduled by the first type PDCCH;

an SPS PDSCH release indicated by the first type PDCCH;

there is no PUSCH scheduled by the corresponding PDCCH;

Optionally, the first type PDCCH is:

a virtual PDCCH position corresponding to the PUSCH; or,

or,

Optionally, the virtual PDCCH positions are:

or,

Optionally, the definition of T is one of the following definitions:

Alternatively to this, the first and second parts may,

In a sixth aspect, a network device is provided, which includes:

and the determining unit is used for not receiving the HARQ-ACK of downlink transmission corresponding to the PDCCH of the first type physical downlink control channel on the PUSCH of the first type according to the feedback bit number of the HARQ-ACK if the PUCCH carrying the HARQ-ACK is overlapped with the PUSCH of the first type physical uplink shared channel.

Optionally, the determining unit is further configured to:

Optionally, the determining unit is specifically configured to:

a Physical Downlink Shared Channel (PDSCH) scheduled by the first type PDCCH;

an SPS PDCCH release indicated by the first type PDCCH;

there is no PUSCH scheduled by the corresponding PDCCH;

Optionally, the first type PDCCH is:

a virtual PDCCH position corresponding to the PUSCH; or,

or,

Optionally, the virtual PDCCH positions are:

or,

Optionally, the definition of T is one of the following definitions:

Alternatively to this, the first and second parts may,

In a seventh aspect, a computer storage medium is provided, on which a computer program is stored, which, when executed by a processor, implements the method according to any of the first or second aspects.

The embodiment of the invention provides a new mechanism, when a PUCCH bearing HARQ-ACK is overlapped with a first type PUSCH, the downlink transmission HARQ-ACK corresponding to the first type PDCCH is determined not to be transmitted on the first type PUSCH. That is, when HARQ-ACK is transmitted on a first type PUSCH, a reference time is determined according to a preset processing delay, the PDCCH indicating SPS PDSCH release and the PDSCH scheduled by the PDCCH after the reference time cannot transmit the HARQ-ACK on the first type PUSCH, thereby determining which PDSCHs and the PDCCH indicating SPS PDSCH release can carry out HARQ-ACK and which PDSCHs and the HARQ-ACK of the PDCCH indicating SPS PDSCH release are not included in a HARQ-ACK feedback sequence (in codebook) in a certain time slot, thereby avoiding that when determining which part of the PDCCH indicating SPS PDSCH release and the PDSCH cannot carry out HARQ-ACK in the current time slot according to a UL grant which is more distant from the current PUSCH, the PDCCH indicating SPS release and the PDSCH cannot carry out HARQ-ACK feedback in the current time slot, the HARQ-ACK feedback of the downlink transmissions cannot be delayed to the subsequent time slot transmission by the PDCCH and PDSCH which is judged to be too much and indicates SPS release and PDSCH cannot carry out HARQ-ACK feedback in the, the feedback time delay of downlink transmission is greatly compressed, the transmission efficiency of the system is improved, and the uplink data on the PUSCH and the final HARQ-ACK can be subjected to correct rate matching.

Drawings

Fig. 1 is a flowchart illustrating a transmission method of HARQ-ACK provided in the prior art;

fig. 2 is a flowchart illustrating a transmission method of HARQ-ACK according to an embodiment of the present invention;

fig. 3 is a schematic diagram of scheduling and feedback according to a first embodiment of the present invention;

fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a network device according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a network device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly and completely apparent, the technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention.

The following describes background art for embodiments of the present invention.

In a Long Term Evolution (LTE) wireless communication system, when a terminal device, such as a User Equipment (UE), simultaneously transmits PUSCH and UCI in a subframe, time domain resources of PUCCH and PUSCH carrying UCI may overlap, and if the UE supports simultaneous transmission of PUCCH and PUSCH and a higher layer signaling configuration may perform simultaneous transmission of PUCCH and PUSCH, PUCCH and PUSCH may be simultaneously transmitted, for example, UCI may be transmitted on PUCCH, and data may be transmitted on PUSCH. If the UE does not support the simultaneous transmission of the PUCCH and the PUSCH or the high-level signaling configuration can not carry out the simultaneous transmission of the PUCCH and the PUSCH, the UCI carried on the PUCCH is transferred to the PUSCH and is multiplexed and transmitted with the information originally carried on the PUSCH. The UCI includes at least a Hybrid Automatic Repeat reQuest acknowledgement (HARQ-ACK), Channel State Information (CSI), and Scheduling ReQuest (SR).

Specifically, for a PUSCH without using repeated transmission, when the PUSCH has a corresponding PDCCH (i.e., scheduled by a UL grant) and the PDCCH uses a Downlink Control Information (DCI) format 0_1, a 1-bit or 2-bit Downlink Assignment Index (DAI), generally referred to as UL DAI, is included in the DCI format 0_1 to indicate the transmission of HARQ-ACK on the PUSCH. This is because, if there is no DAI indication in DCI format 0_1, when the UE does not receive any downlink transmission that requires HARQ-ACK feedback at the time domain position of the PUSCH, the UE may determine that there is no HARQ-ACK transmission on the PUSCH; when the UE receives downlink transmission needing HARQ-ACK feedback at the time domain position of the PUSCH, the UE determines that HARQ-ACK transmission determined according to the configured codebook exists on the PUSCH.

When HARQ-ACK is configured to use Semi-Static Codebook (Semi-Static Codebook) transmission, 1-bit DAI is included in DCI format 0_1 for indicating whether HARQ-ACK transmission exists on PUSCH, that is, for avoiding inconsistency of understanding of whether HARQ-ACK transmission exists on PUSCH by terminal equipment and network equipment due to downlink transmission packet loss. When HARQ-ACK is configured to be transmitted using a Dynamic Codebook (Dynamic Codebook), DCI format 0_1 includes 2 or 4 bits of DAI for indicating the total number of bits for HARQ-ACK transmission on PUSCH, where if sub-codebooks (respective codebooks for Transport Block (TB) -based downlink transmission and Code Block Group (CBG) -based downlink transmission) are used, each sub-Codebook corresponds to 2 bits of DAI, totaling 4 bits of DAI). For a dynamic codebook, a DCI (e.g., DCI format 1_0 or 1_1) used by a PDCCH (PDCCH for Scheduling a PDSCH or indicating release of downlink Persistent Scheduling (SPS) resources) in a PDCCH detection opportunity (Monitoring opportunity) set corresponding to the dynamic codebook also includes a DAI, which is generally referred to as DL DAI, and includes only 2-bit DAI in a single carrier and 4-bit DAI in a multi-carrier, which are divided into 2-bit C-DAI and 2-bit T-DAI and are used for indicating ordering and size of the codebook respectively.

At present, a 5G NR system supports repeated transmission of a PUSCH and also supports transferring UCI carried on a PUCCH to a PUSCH for transmission when time domain resources of the PUCCH and the PUSCH overlap, thereby avoiding parallel transmission of multiple channels.

Considering that when the HARQ-ACK is transmitted on the PUSCH, when the HARQ-ACK is multiplexed with data in a rate matching manner for transmission, before starting preparation, for example, before rate matching, the number of HARQ-ACK bits transmitted on the PUSCH needs to be known, so as to determine the resources occupied by the HARQ-ACK on the PUSCH, determine the resources used for data transmission, and perform rate matching on the data. Therefore, it is defined that downlink transmissions occurring after a UL grant cannot perform HARQ-ACK feedback on a PUSCH scheduled by the UL grant, where the downlink transmissions refer to a PDCCH indicating Semi-Persistent Scheduling (SPS) resource release detected in a PDCCH detection opportunity Scheduling after the UL grant or a PDSCH scheduled by a PDCCH detected in a PDCCH detection opportunity Scheduling after the UL grant, and the purpose is to ensure that the number of bits of HARQ-ACK transmitted on the PUSCH scheduled by the UL grant can be determined when the UL grant is received, thereby ensuring timely data preparation. In addition, when the UL grant includes the DAI, the DAI may indicate a value for determining the number of bits of the HARQ-ACK transmitted on the PUSCH, for example, the value of the DAI indicates the total number of downlink transmissions required to perform the HARQ-ACK transmission in the slot where the PUSCH scheduled by the UL grant is located. Preferably, the network device should not schedule the downlink transmission after the UL grant to perform HARQ-ACK feedback in the time slot scheduled by the UL grant, for example, by setting a larger value of K0 for HARQ-ACK feedback timing (indicating an interval from the time slot where the PDSCH or SPS release PDCCH is located to the time slot where the HARQ-ACK transmission is located), the HARQ-ACK feedback of the downlink transmission after the UL grant is prevented from falling into the time slot scheduled by the UL grant. Since this definition is for a single PUSCH transmission, the maximum transmission delay may be one slot.

Furthermore, for the case where multiple PUSCH transmissions are scheduled simultaneously by one PDCCH, for example, N PUSCH transmissions are scheduled in N slots starting with PDCCH simultaneous scheduling slot N + K2 in slot N, or N PUSCH transmissions are scheduled in N slots determined based on N K2 values given N K2 values, the scheduling information for the PUSCH in each slot may be the same or different, the PUSCH in each slot carries an independent Transport Block (TB) instead of a repeated transmission of one TB, i.e., the scheduling information for scheduling multiple PUSCH transmissions in multiple slots is carried simultaneously in one PDCCH. In this case, there is also the above-described HARQ-ACK transmission on PUSCH problem similar to that in PUSCH repeated transmission.

In addition, for PUSCH transmission without a corresponding PDCCH in the 5G NR system, for example, SPS PUSCH, grant-free PUSCH, PUSCH carrying SP-CSI, and the like, since there is no corresponding UL grant, it is impossible to determine which HARQ-ACK of downlink transmission cannot be transmitted on the PUSCH according to the relative position of the downlink transmission and the UL grant. If any HARQ-ACK which is determined according to the HARQ-ACK feedback time sequence and needs to be subjected to downlink transmission of the HARQ-ACK in the time slot where the PUSCH is located is placed on the PUSCH for transmission, the downlink transmission possibly occurs at a time domain position close to the PUSCH, so that the terminal does not obtain the final HARQ-ACK codebook size when the terminal needs to start to prepare uplink data on the PUSCH, because for dynamic codebook, the bit number of the HARQ-ACK transmitted in one time slot can be determined only when the UE receives the last downlink transmission corresponding to the HARQ-ACK feedback in the time slot.

Therefore, in 5G NR, for multiple PUSCH transmissions scheduled by one UL grant, the UL grant can only be used for determination of HARQ-ACK transmission on the first PUSCH, and for subsequent PUSCHs, if the existing mechanism is still used and HARQ-ACK of downlink transmission occurring after the UL grant is not supported for transmission on these PUSCHs, an excessive downlink transmission delay, which may be a multiple-slot delay, will result, thereby affecting system throughput. For example, when HARQ-ACK is transmitted on PUSCH, considering processing delay of PUSCH, PDSCH scheduled by PDCCH after PDCCH scheduling PUSCH or PDCCH indicating downlink SPS resource release (also referred to as SPS PDSCH release) whose HARQ-ACK cannot be transmitted on this PUSCH. For a plurality of PUSCHs scheduled by the same PDCCH, if the PDCCH scheduling the plurality of PUSCHs is used as a demarcation point to determine a downlink transmission set capable of transmitting HARQ-ACK on each PUSCH, HARQ-ACK feedback cannot be timely obtained in downlink transmission within a long time. As shown in fig. 1, for PUSCHs in slots n +1, n +2 and n +3, if the PDCCH in slot n-1 is taken as a reference, the downlink transmissions scheduled by the PDCCHs in slots n-1 to n +2 cannot be HARQ-ACK fed back on these PUSCHs, thereby affecting the downlink throughput.

For a PUSCH without a corresponding PDCCH, there is currently no mechanism to define which downlink transmissions can perform HARQ-ACK feedback on the PUSCH, and according to the existing mechanism, as long as it is determined according to a HARQ-ACK feedback timing sequence that feedback needs to be performed in a slot where the PUSCH is located, if a PUCCH carrying HARQ-ACK is overlapped with the PUSCH, the HARQ-ACK will be transmitted on the PUSCH, and a potential problem that may exist in the scheme is that a certain downlink transmission occurs late (later than a time when the PUSCH starts to be prepared), the PUSCH cannot obtain a final HARQ-ACK bit number when being prepared, so that data and the final HARQ-ACK cannot be subjected to correct rate matching.

In view of this, an embodiment of the present invention provides a new mechanism, and in the embodiment of the present invention, when a PUCCH carrying HARQ-ACK overlaps with a first PUSCH, it is determined that HARQ-ACK of downlink transmission corresponding to the first PDCCH is not transmitted on the first PUSCH. That is, when the HARQ-ACK is transmitted on the first-class PUSCH, a reference time is determined according to a predetermined processing delay, and the PDSCH scheduled by the PDCCH after the reference time cannot transmit the HARQ-ACK on the first-class PUSCH, so that it is determined which PDSCHs can perform the HARQ-ACK at a certain time slot, thereby avoiding delaying the HARQ-ACK feedback of the PDSCH to be transmitted after another time slot, greatly compressing the feedback delay of downlink transmission, improving the system transmission efficiency, and enabling data and the final HARQ-ACK to perform correct rate matching.

The technical scheme provided by the embodiment of the invention is described in the following with the accompanying drawings of the specification.

Referring to fig. 2, an embodiment of the invention provides a method for transmitting HARQ-ACK, and a flow of the method is described as follows. Since the HARQ-ACK transmission method involves an interactive process between the network device and the terminal device, in the following description of the flow, the processes performed by the network device and the terminal device will be described together.

S201, if the PUCCH bearing the HARQ-ACK is overlapped with the first type PUSCH, determining that the HARQ-ACK of the downlink transmission corresponding to the first type PDCCH is not transmitted on the first type PUSCH.

In the embodiment of the present invention, the first type of PUSCH may include at least one PUSCH of the following three PUSCHs:

first, there is no PUSCH scheduled by the corresponding PDCCH;

a second PUSCH, other than the first PUSCH, of the at least two independent PUSCHs scheduled by the same PDCCH;

and thirdly, the PUSCHs except the first PUSCH in the PUSCHs which are repeatedly transmitted for a plurality of times.

The downlink transmission corresponding to the first type PDCCH may include: the physical downlink shared channel PDSCH scheduled by the first type PDCCH, the SPS PDSCH release indicated by the first type PDCCH, and the PDCCH indicating the downlink SPS resource release and being at least one of three downlink transmissions of the first type PDCCH. The SPS PDSCH release is equivalent to a PDCCH indicating downlink SPS resource release, and therefore, the PDCCH indicating downlink SPS resource release is referred to herein as a first type PDCCH, and the HARQ-ACK corresponding to the SPS PDSCH release is referred to as HARQ-ACK of the first type PDCCH indicating the SPS PDSCH release.

If the PUCCH carrying the HARQ-ACK is overlapped with the first PUSCH type, the HARQ-ACK carried on the PUCCH can be transferred to the PUSCH for transmission. According to the embodiment of the invention, the HARQ-ACK of the downlink transmission corresponding to the first type PDCCH is determined not to be transmitted on the first type PUSCH. The embodiment of the invention can determine that the HARQ-ACK of the downlink transmission corresponding to the first type PDCCH is not transmitted on the first type PUSCH by the following modes:

in the first mode, a Negative Acknowledgement (NACK) is generated for a position corresponding to downlink transmission corresponding to a first type PDCCH in an HARQ-ACK codebook transmitted on a PUSCH.

And the second mode is that HARQ-ACK corresponding to downlink transmission corresponding to the first type PDCCH is removed from the HARQ-ACK codebook transmitted on the PUSCH.

And in the third mode, when the HARQ-ACK codebook transmitted on the PUSCH is generated, the HARQ-ACK of the downlink transmission corresponding to the first type PDCCH is not included.

According to the embodiment of the invention, before determining that the downlink-transmitted HARQ-ACK corresponding to the first type PDCCH is not transmitted on the first type PUSCH, the terminal equipment can also be determined not to support or configure the simultaneous transmission of the PUCCH and the PUSCH. Or, the embodiment of the invention can also determine that the PUCCH and the PUSCH of the first type meet the time condition for transferring the HARQ-ACK carried on the PUCCH to the PUSCH for transmission. That is, when the HARQ-ACK is transmitted on the PUSCH of the first type, the embodiment of the present invention may first determine a reference time, and the PDSCH scheduled by the PDCCH after the reference time cannot transmit the HARQ-ACK on the PUSCH of the first type. The PUCCH and the PUSCH of the first type satisfy a time condition for transferring the HARQ-ACK carried on the PUCCH to the PUSCH for transmission, that is, a first symbol of a channel with an earliest starting symbol in the PUCCH and the PUSCH satisfies the following conditions:

condition one, the first uplink symbol not earlier than T1 time after the last symbol required for HARQ-ACK feedback on PUCCH, or the first uplink symbol not earlier than T1 time after the last symbol of any one PDSCH required for HARQ-ACK feedback on PUCCH.

And the second condition is that the first uplink symbol is not earlier than the time T2 after the last symbol in the PDCCH corresponding to the PDSCH or SPS PDSCH release needing HARQ-ACK feedback on the PUCCH, or the first uplink symbol is not earlier than the time T2 after the last symbol in any one of the PDSCH or SPS PDSCH release corresponding to the PDSCH or SPS PDSCH release needing HARQ-ACK feedback on the PUCCH.

Among them, T1 and T2 may be determined according to UE capability, transmission configuration, and other parameters. When the starting symbols of the PUCCH and the PUSCH are aligned, the channel with the longest transmission length is selected for the judgment, and when the starting symbols and the transmission length are consistent, the terminal equipment autonomously selects a time condition.

In the embodiment of the present invention, the first type PDCCH may be a PDCCH transmitted after the first time domain position. Wherein, the first time domain position may be:

(1) and a virtual PDCCH position corresponding to the PUSCH.

(2) And a Tth symbol before a first symbol of the PUSCH, wherein T is a preset time delay.

(3) And a predetermined downlink symbol or a Flexible symbol or a PDCCH detection opportunity which meets a preset condition. The preset condition can be any one of the following preset conditions:

(31) and before the first symbol of the PUSCH, and the interval with the first symbol is not less than T symbols, wherein T is preset time delay.

(32) And in the Kth time slot before the time slot of the PUSCH, wherein K is the scheduling time sequence value corresponding to the first PUSCH. Namely K2 informed in the PDCCH for scheduling the first PUSCH or a K2 value pre-configured by higher layer signaling, K2 indicates the slot interval between the PDCCH for scheduling PUSCH and the PUSCH, i.e. the PDCCH for transmission in slot n schedules PUSCH transmission in slot n + K2.

(33) And in the time slot which is before the time slot of the PUSCH and has the time slot interval with the time slot of the PUSCH not less than K time slots, wherein K is the scheduling timing value corresponding to the first PUSCH.

Further, the predetermined downlink symbol is the latest downlink symbol meeting the preset condition, or the predetermined downlink symbol is the first downlink symbol in the time slot meeting the preset condition. The Flexible symbol is the latest Flexible symbol in the preset condition, or the Flexible symbol is the first Flexible symbol in the time slot in which the preset condition is met. The PDCCH detection opportunity is the latest PDCCH detection opportunity in a preset condition, or the PDCCH detection opportunity is the first PDCCH detection opportunity in a time slot in which the preset condition is satisfied.

The virtual PDCCH location may be:

(11) and a Tth symbol before a first symbol of the PUSCH, wherein T is a preset time delay.

(12) And a predetermined downlink symbol or a Flexible symbol or a PDCCH detection opportunity which meets a preset condition. The preset condition can be any one of the following preset conditions:

(121) and before the first symbol of the PUSCH, and the interval with the first symbol is not less than T symbols, wherein T is preset time delay.

(122) And in the Kth time slot before the time slot of the PUSCH, wherein K is the scheduling time sequence value corresponding to the first PUSCH. Namely K2 informed in the PDCCH for scheduling the first PUSCH or a K2 value pre-configured by higher layer signaling, K2 indicates the slot interval between the PDCCH for scheduling PUSCH and the PUSCH, i.e. the PDCCH for transmission in slot n schedules PUSCH transmission in slot n + K2.

(123) And in the time slot which is before the time slot of the PUSCH and has the time slot interval with the time slot of the PUSCH not less than K time slots, wherein K is the scheduling timing value corresponding to the first PUSCH.

In an embodiment of the present invention, the definition of T may be one of the following definitions:

where μ is the number of the smallest subcarrier interval in PDCCH, PUCCH, PUSCH, and of course, if there are multiple PUCCH and/or multiple PUSCH, here is the smallest subcarrier interval in multiple channels; the minimum subcarrier spacing in multiple PUCCHs and/or multiple PUSCHs may be determined first, and then the ratio of the subcarrier spacing to the subcarrier spacing of the PDCCH may be selected to be the smallest. Z is the required time delay of the A-CSI; d is the number of symbols overlapped between the PDCCH and the scheduled PDSCH; if the first symbol of the PUSCH only contains the demodulation reference signal DMRS, then d2,1 ═ 0, otherwise d2,1 ═ 1; if the PDCCH for scheduling the PUSCH triggers the BWP handover of the bandwidth part, d2,2 is the preset time required by BWP handover, otherwise d2,2 is 0; t is_cIs the basic time unit (e.g., sampling time interval) in the NR, and κ is the ratio between the basic time unit of long term evolution, LTE, and the basic time unit of NR.

if the first-class PUSCH is a PUSCH except the first PUSCH in at least two independent PUSCHs scheduled by the same PDCCH, T is a scheduling timing value indicated in the PDCCH;

if the first-class PUSCH is a PUSCH other than the first PUSCH among PUSCHs subjected to multiple times of repetitive transmission, T is a scheduling timing value indicated in a PDCCH that schedules the PUSCH transmission for repetitive transmission.

For convenience of understanding, the technical solutions provided by the embodiments of the present invention are described below with specific embodiments.

Referring to fig. 3 in the first embodiment, fig. 3 is a schematic diagram of scheduling and feedback in the first embodiment. Fig. 3 illustrates a Frequency Division Duplex (FDD) system. There are uplink and downlink resources per slot. Depending on the pre-configuration of the higher layer signaling, there may be different numbers of PDSCH scheduled transmissions in different time slots, or different numbers of PDCCH monitoring transmissions. Alternatively, there may be the same number of PDSCH scheduled transmissions in different time slots, or the same number of PDCCH monitoring transmissions. The network device sends a UL grant in the second PDCCH monitoring occasion in slot n-3, i.e. a PDCCH using DCI format 0_0 or 0_1, for scheduling the terminal to perform PUSCH retransmission in 4 consecutive slots starting at slot n. Where, K2 denotes an uplink scheduling timing, and the interval between the time slot for transmitting the UL grant and the scheduled PUSCH is K2, that is, the PUSCH is transmitted in the K2 th time slot after the time slot for transmitting the UL grant. When HARQ _ ACK needs to be transmitted on a PUSCH, for example, when HARQ-ACK needs to be transmitted through a PUCCH in a time slot where PUSCH transmission is needed, time domain resources of the PUCCH bearing the HARQ-ACK and the PUSCH are overlapped, the PUCCH and the PUSCH meet a scheduled UCI multiplexing time condition, and simultaneous transmission of the PUCCH and the PUSCH is not supported or configured, it is determined that the HARQ-ACK of downlink transmission corresponding to the first type PDCCH is not transmitted on the first type PUSCH, and the determination is performed according to the following mode:

for the PUSCH in slot n, it is apparent that both the PDSCH in slot n-3 and the PDSCH in the slot before slot n-3 are scheduled by a location no later than the UL grant corresponding to the PUSCH in slot n, e.g., the DL grant transmitted by the second PDCCH monitoring event in slot n-3, e.g., the PDCCH using DCI format 1_0 or 1_1, for scheduling the PDSCH or the PDCCH for SPS PDSCH release. Therefore, HARQ-ACK feedback can be made on the PUSCH in slot n, and whether or not HARQ-ACK feedback is really made depends on the feedback timing K1 of these PDSCHs. Where K1 indicates that the PDSCH is transmitted in K1 slots after the slot, when K1 corresponding to the PDSCH indicates HARQ-ACK feedback in slot n, for example, K1 ═ 5 corresponding to the PDSCH in slot n-5, if PUCCH resources carrying the HARQ-ACK overlap PUSCH resources in slot n and simultaneous transmission of PUCCH and PUSCH is not supported, actual HARQ-ACK feedback corresponding to the PDSCH can be transmitted on PUSCH in slot n. On the other hand, the PDSCHs in the slots after slot n-3 are all scheduled by the position of the UL grant corresponding to the PUSCH in slot n, for example, the DL grant transmitted by the second PDCCH monitoring scheduling in slot n-3, and therefore HARQ-ACK transmission cannot be performed on the PUSCH in slot n.

For the PUSCH in the slot n +1, if it is determined which PDSCHs can perform HARQ-ACK transmission on this PUSCH according to the UL grant position in the slot n-3, the interval between the UL grant in the slot n-3 and the PUSCH in the slot n +1 far exceeds the scheduling timing and processing delay of the PUSCH, which will cause the feedback delay of some downlink transmissions to increase, and is not favorable for the downlink transmission efficiency. For example, if according to the UL grant position in slot n-3, none of the PDSCHs in slots subsequent to slot n-3 can perform HARQ-ACK transmission on the PUSCH in slot n + 1. But actually, the PDSCH in the partial slot is sufficient for transmitting HARQ-ACK on the PUSCH in the slot n +1, for example, the PDSCH in the slot n-2, and assuming that the time interval between the UL grant in the slot n-3 and the first PUSCH is used as the preparation time of the PUSCH, the preparation of the PUSCH in the slot n +1 only needs to be started at the end position of the second PDCCH monitoring interference in the slot n-2. The actual preparation time may be smaller than the time interval between the UL grant and the first PUSCH in slot n-3, and for a PDSCH scheduled by a PDCCH not later than this time, the terminal device is always able to know at this time the number of already scheduled PDSCHs that need HARQ-ACK feedback in slot n + 1. Even though the PDSCH reception and analysis may not be completed, as long as the PDCCH for scheduling the PDSCH is received, the bit number of HARQ-ACK can be known, and how many bits of HARQ-ACK transmission exist in the time slot n +1 can be known, so that it is ensured that the network device can set the correct HARQ-ACK bit number (if the UL DAI field exists) when sending the UL grant, and it is also ensured that the UE and the network device can estimate the resources occupied by the uplink data on the PUSCH according to the HARQ-ACK bit number, and then can start to pre-process the uplink data, such as coding, rate matching, and the like. Therefore, a PDSCH scheduled by a PDCCH that is not later than the second PDCCH monitoring occasion in slot n-2 can perform HARQ-ACK transmission on the PUSCH in slot n + 1. For example, both PDSCHs in slot n-2 may have HARQ-ACK transmission on the PUSCH in slot n +1, although a PDSCH that may have HARQ-ACK transmission on the PUSCH in slot n must have HARQ-ACK transmission on the PUSCH in slot n + 1. Specifically, this can be achieved in several ways as follows.

Mode 1, the terminal device may determine a time domain position based on the predetermined processing delay T, and define which PDSCHs may transmit HARQ-ACK on the PUSCH in slot n +1 with this time domain position.

Wherein, the predetermined processing delay may be a symbol level length or a time length, for example, a processing delay when the PUSCH carries the UCI, for example, N2+ Y symbols, where N2 is a processing delay of the PUSCH related to the subcarrier spacing and the terminal device capability. Y is the predetermined additional processing delay for carrying UCI, T may also be the length of time, and there may be several definitions:

(1)、

(2)、

(3)、

(4)、

in the above (1) to (4), μ is the number of the smallest subcarrier interval in the PDCCH, PUCCH, and PUSCH; d if the first symbol of PUSCH contains only DMRS_2,1Not more than 0, otherwise d _2,11 is ═ 1; d if bandwidth fractional BWP handover is triggered by PDCCH scheduling PUSCH_2,2To be predeterminedThe BWP switching of otherwise d_2,2＝0；T_cThe basic time unit in NR, i.e., the sampling time interval, may be a predetermined value; κ is a ratio between a basic time unit of LTE and a basic time unit of NR, and may also be a predetermined fixed value. For (2), Z is the required delay of a-CSI, and d is the number of symbols overlapping between PDCCH and scheduled PDSCH.

For example, as shown in fig. 3, based on the first symbol of the PUSCH in the slot n +1, the tth symbol before the first symbol or the first PDCCH monitoring interference not less than T symbols apart from the first symbol is determined as one reference time. For example, just determining the second PDCCH monitoring interference in slot n-2 as the reference time (specifically, the end position thereof), it can be determined that the PDSCH in slot n-2 and the slot before slot n-2 can perform HARQ-ACK feedback on the PUSCH in slot n +1, and the PDSCH in the slot after slot n-2 cannot perform HARQ-ACK feedback on the PUSCH in slot n + 1. It is of course also possible to define the first symbol as the first downlink symbol or as a flexible symbol.

In the embodiment of the present invention, the predetermined processing delay may also be at a slot level, for example, equal to a value of K2 indicated in a UL grant triggering repeated PUSCH transmission. In this embodiment, if K is 3, the nearest PDCCH monitoring occasion in the 3 rd slot before the slot n +1, that is, the second PDCCH monitoring occasion in the slot n-2, can be determined as the reference time (specifically, the ending position thereof). It is of course also possible to define a specific symbol in the 3 rd slot preceding slot n +1, such as the first symbol, or the last symbol, or the first DL or flexible symbol, or the last DL or flexible symbol, for example, when the second specific alignment in slot n-2 is the reference time (specifically its end position). Thus, it can be determined that the PDSCH in slot n-2 and the slot before slot n-2 can both perform HARQ-ACK feedback on the PUSCH in slot n +1, and the PDSCH in the slot after slot n-2 cannot perform HARQ-ACK feedback on the PUSCH in slot n + 1.

Mode 2: a virtual (virtual) UL grant corresponding to the PUSCH in the slot n +1 is defined, and a latest PDCCH monitoring occasion may be determined forward according to the T or K value. Assuming that there is a virtual UL grant for scheduling the PUSCH in slot n +1, after the virtual UL grant is defined, the PUSCH in slot n is processed, and it is determined that the PDSCH scheduled by the PDCCH that is not later than the PDCCH monitoring event where the virtual UL grant is located can perform HARQ-ACK feedback on slot n + 1. For example, the PDSCH in slot n-2 and the slot before slot n-2, determines that the PDSCH scheduled by the PDCCH transmitted after the PDCCH monitoring event in which the virtual UL grant is located cannot perform HARQ-ACK feedback on slot n +1, e.g., the PDSCH in the slot after slot n-2.

It can be seen that, according to the above mode 1 and mode 2, relative to determining which PDSCHs can perform HARQ-ACK according to the UL grant in the time slot n-3, the PUSCH in the time slot n +1 can support the PDSCH in the time slot n-2 to perform HARQ-ACK feedback, thereby avoiding delaying the HARQ-ACK feedback of the PDSCH in the time slot n-2 until the time slot n +3 is later for transmission, greatly compressing the feedback delay of downlink transmission, and improving the transmission efficiency of the system.

For the PUSCH in slot n +2, a reference time may also be determined in a similar manner as the PUSCH in slot n +1, and if the T-th symbol before the first symbol is determined as the reference time, it is a symbol in the PDSCH in slot n-1. It can also be determined that the PDSCH in slot n-1 is scheduled by the DL grant transmitted before this time, so HARQ-ACK can be transmitted on the PUSCH in slot n +2, i.e. any one symbol satisfying T time can be used as the reference time. If the first PDCCH monitoring occasion (certainly, the first DL or flexible symbol may be defined as the same) spaced from the first symbol by not less than T symbols is determined as the reference time or the virtual UL grant position, since there is no PDCCH monitoring occasion at the time determined according to T, the search for the first PDCCH monitoring occasion in the time slot n-1 is further advanced as the reference time. The rest of the processing is similar to that in the time slot n +1, and is not described again here.

For the PUSCH in the slot n +3, a method consistent with the PUSCH in the same slot n +2 may be adopted, and details are not described here.

In the above process, it is assumed that the HARQ-ACK feedback timing set K1 is {2,3,4,5}, and K1 is in units of slots, and is used to determine a slot in which a PUCCH carrying HARQ-ACK of a PDSCH is transmitted according to the slot in which the PDSCH is transmitted. When the semi-static HARQ-ACK codebook is configured to be used, the position of the PDSCH corresponding to the PUSCH incapable of carrying out HARQ-ACK transmission on the PUSCH in one time slot is set as NACK in the semi-static HARQ-ACK codebook in the time slot. For example, taking slot n +1 as an example, according to the definition of semi-static HARQ-ACK codebook, it can be determined that the PDSCH candidate set corresponding to semi-static HARQ-ACK codebook in slot n +1 is PDSCH transmission in slots n-4, n-3, n-2 and n-1, and contains 6 PDSCH transmissions in total. However, according to the above-mentioned manner, it is determined that the PDSCH in the slot n-1 cannot perform HARQ-ACK feedback on the PUSCH in the slot n +1, the HARQ-ACK position of the PDSCH in the corresponding slot n-1 is set as NACK in the HARQ-ACK codebook transmitted on the PUSCH in the slot n +1, and if the PDSCH in the slots before the slot n-2 and the slot n-2 determines that HARQ-ACK feedback needs to be performed in the slot n +1 according to the corresponding K1 values (indicated in the corresponding DL grant), the HARQ-ACK is generated according to the receiving condition of the PDSCH. If the condition for performing semi-static codebook backoff is not satisfied (i.e. when only one downlink transmission is received and the downlink transmission is scheduled by DCI format 1_0 and DAI ═ 1), mapping to the corresponding position in semi-static HARQ-ACK codebook corresponding to slot n +1, and transmitting HARQ-ACK codebook on PUSCH in slot n + 1. If the condition of semi-static codebook backoff is satisfied, HARQ-ACK is generated for only one received downlink transmission and transmitted on PUSCH in slot n + 1.

When the configuration uses dynamic HARQ-ACK codebook, HARQ-ACK of PDSCH which can not carry out HARQ-ACK transmission on PUSCH in the time slot is removed from codebook. Also taking slot n +1 as an example, according to the definition of dynamic HARQ-ACK codebook, the PDCCH monitoring occasion set corresponding to dynamic HARQ-ACK codebook in slot n +1 can be determined as PDCCH monitoring in slots n-4, n-3, n-2 and n-1 (for simplicity, it is assumed that scheduling timings K0 in the candidate PDSCH set are all 0, K0 represents the slot interval between the PDCCH scheduling the PDSCH and the PDSCH, i.e., the downlink uses intra-slot scheduling, and certainly if K0 is not zero, the PDCCH monitoring occasion set may be changed), and the size of dynamic HARQ-ACK codebook and the ordering of HARQ-ACK can be determined according to the DAI value carried in the PDCCH (i.e., DL in fig. 2) received in PDCCH monitoring occasion.

If the network device schedules the PDSCH in the time slot n-1 to perform HARQ-ACK feedback in the time slot n +1 (i.e. K1 is 2), then the last PDCCH received in its PDCCH monitoring scheduling set corresponding to the dynamic codebook in the time slot n +1 is the PDCCH in the time slot n-1, and it is determined, for example, that HARQ-ACK feedback needs to be performed on 6 PDSCHs according to the DAI in the PDCCH in the time slot n-1, but actually, because the PDSCH in the time slot n-1 cannot perform HARQ-ACK feedback on the PUSCH in the time slot n +1, the HARQ-ACK corresponding to the PDSCH in the time slot n-1 needs to be removed from the dynamic HARQ-ACK codebook. Of course, preferably, the network device should not give scheduling such that the network device can avoid the terminal device to discard the HARQ-ACK feedback for this PDSCH by setting a value of K1 greater than 2 to the PDSCH in slot n-1. For example, if K1 is set to 3, the PDSCH in the time slot n-1 may perform HARQ-ACK feedback in the time slot n +2, and at this time, the last PDCCH received in the PDCCH monitoring interference set corresponding to the dynamic codebook in the time slot n +1 is not the PDCCH in the time slot n-1, but is the PDCCH in the time slot n-2, and the codebook size is determined according to the PDCCH in the time slot n-2, so that there is no case where HARQ _ ACK is discarded for the PDSCH transmission that has occurred.

In the embodiment of the invention, the network equipment determines whether the HARQ-ACK exists on the PUSCH and how many bits of the HARQ-ACK exist in each time slot according to the same mode, and further receives the HARQ-ACK on the PUSCH.

In the first embodiment, only K1 is taken as an example of the value of the indicator field dynamic indicator in the PDCCH corresponding to downlink transmission. In addition, K1 may be predefined or preconfigured by higher layer signaling, where each downlink transmission has only one fixed feedback timing, but the change of this timing definition does not affect the implementation of the above scheme. In the first embodiment, only FDD is taken as an example, and if the Time Division Duplex (TDD) is also applicable, the only difference is that the PDSCH candidate set determined for semi-static codebook is not necessarily consecutive Time slots, and the PDCCH monitoring scheduling set for dynamic codebook may not be in consecutive Time slots, and some Time slots may be excluded because there is no downlink transmission resource or the downlink transmission resource is insufficient to support the candidate PDSCH Time domain resource size.

It should be noted that, in the first embodiment, the HARQ-ACK transmission method provided in the embodiment of the present invention is also applicable to the case when the same PDCCH jointly schedules N independent PUSCH transmissions. The same applies if all or any of the above PDSCHs are replaced with SPS PDSCH release (i.e., PDCCH indicating SPS resource release). The above-mentioned scheduling of a PUSCH retransmission by one PDCCH is replaced by SPS PUSCH transmission or PUSCH transmission carrying SP-CSI, and the same is applicable, except that each SPS PUSCH or SP-CSI PUSCH is not transmitted in a continuous slot, but is transmitted in a slot at periodic intervals according to a pre-configured period, and the UL grant scheduling the PUSCH in the first embodiment may be replaced by a PDCCH activating the SPS PUSCH or SP-CSI PUSCH.

In summary, when the PUCCH carrying the HARQ-ACK overlaps with the first PUSCH type, it is determined that the downlink HARQ-ACK corresponding to the first PDCCH is not transmitted on the first PUSCH type. That is, when HARQ-ACK is transmitted on a first type PUSCH, a reference time is determined according to a preset processing delay, the PDCCH indicating SPS PDSCH release and the PDSCH scheduled by the PDCCH after the reference time cannot transmit the HARQ-ACK on the first type PUSCH, thereby determining which PDSCHs and the PDCCH indicating SPS PDSCH release can carry out HARQ-ACK and which PDSCHs and the HARQ-ACK of the PDCCH indicating SPS PDSCH release are not included in a HARQ-ACK feedback sequence (in codebook) in a certain time slot, thereby avoiding that when determining which part of the PDCCH indicating SPS PDSCH release and the PDSCH cannot carry out HARQ-ACK in the current time slot according to a UL grant which is more distant from the current PUSCH, the PDCCH indicating SPS release and the PDSCH cannot carry out HARQ-ACK feedback in the current time slot, the HARQ-ACK feedback of the downlink transmissions cannot be delayed to the subsequent time slot transmission by the PDCCH and PDSCH which is judged to be too much and indicates SPS release and PDSCH cannot carry out HARQ-ACK feedback in the, greatly compresses the feedback time delay of downlink transmission, improves the transmission efficiency of the system, and enables the uplink data on the PUSCH and the final HARQ-ACK to carry out correct rate matching

The device provided by the embodiment of the invention is described in the following with the attached drawings of the specification.

Referring to fig. 4, based on the same inventive concept, an embodiment of the present invention provides a network device, including: a memory 401, a processor 402, and a transceiver 404. The memory 401 and the transceiver 404 may be connected to the processor 402 through a bus interface (as shown in fig. 4 for example), or may be connected to the processor 402 through a dedicated connection line.

The memory 401 may be used to store programs, among other things. A transceiver 404 for transceiving data under the control of the processor 402. The processor 402 may be configured to read the program in the memory 401 and execute the following processes: and if the physical uplink control channel PUCCH carrying the HARQ-ACK is overlapped with the first type of physical uplink shared channel PUSCH, determining that the downlink-transmitted HARQ-ACK corresponding to the first type of physical downlink control channel PDCCH is not transmitted on the first type of PUSCH.

Optionally, the processor 402 is further configured to:

and determining that the PUCCH and the PUSCH of the first type meet the time condition for transferring the HARQ-ACK carried on the PUCCH to the PUSCH for transmission.

Optionally, the processor 402 is specifically configured to:

removing HARQ-ACK corresponding to downlink transmission corresponding to the first type PDCCH from an HARQ-ACK codebook transmitted on the PUSCH; or,

when the HARQ-ACK codebook transmitted on the PUSCH is generated, the HARQ-ACK of the downlink transmission corresponding to the first type PDCCH is not included.

a Physical Downlink Shared Channel (PDSCH) scheduled by a first type PDCCH;

SPS PDSCH release indicated by a first type PDCCH;

there is no PUSCH scheduled by the corresponding PDCCH;

Optionally, the first PDCCH is:

a virtual PDCCH position corresponding to the PUSCH; or,

a Tth symbol before a first symbol of the PUSCH, wherein T is a preset time delay; or,

before a first symbol of the PUSCH, and the interval with the first symbol is not less than T symbols, wherein T is a preset time delay;

or,

in a Kth time slot before the time slot of the PUSCH, wherein K is a scheduling time sequence value corresponding to the first PUSCH;

or,

and in a time slot which is before the time slot of the PUSCH and has a time slot interval with the time slot of the PUSCH not less than K time slots, wherein K is the scheduling timing value corresponding to the first PUSCH.

Optionally, the virtual PDCCH location is:

or,

Optionally, T is defined as one of the following definitions:

Alternatively to this, the first and second parts may,

the predetermined downlink symbol is the latest downlink symbol meeting a preset condition, or the first downlink symbol in a time slot meeting the preset condition;

the PDCCH detection opportunity is the latest PDCCH detection opportunity in a preset condition or the first PDCCH detection opportunity in a time slot meeting the preset condition.

Where in fig. 4, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 402, and various circuits, represented by memory 401, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 404 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 402 is responsible for managing the bus architecture and general processing, and the memory 401 may store data used by the processor 402 in performing operations.

Alternatively, the Memory 401 may include a Read Only Memory (ROM), a Random Access Memory (RAM), and a disk Memory. The memory 401 is configured to store data required by the processor 402 during operation, that is, to store instructions executable by the at least one processor 402, and the at least one processor 402 executes the instructions stored in the memory 401 to perform the transmission method of HARQ-ACK provided in the embodiments shown in fig. 2 to 3. The number of the memories 401 is one or more. The memory 401 is also shown in fig. 4, but it should be noted that the memory 401 is not an optional functional block, and is therefore shown in fig. 4 by a dotted line.

Referring to fig. 5, based on the same inventive concept, an embodiment of the present invention provides a terminal device, which includes a determining unit 501 and a storing unit 502.

The determining unit 501 is configured to determine that the downlink-transmitted HARQ-ACK corresponding to the first type physical downlink control channel PDCCH is not transmitted on the first type PUSCH if the physical uplink control channel PUCCH carrying the HARQ-ACK overlaps with the first type physical uplink shared channel PUSCH. The memory unit 502 is used for storing data, wherein the memory unit 502 is not essential and is therefore illustrated by a dashed line.

Optionally, the determining unit 501 is further configured to:

Optionally, the determining unit 501 is specifically configured to:

a Physical Downlink Shared Channel (PDSCH) scheduled by a first type PDCCH;

SPS PDSCH release indicated by a first type PDCCH;

there is no PUSCH scheduled by the corresponding PDCCH;

Optionally, the first PDCCH is:

a virtual PDCCH position corresponding to the PUSCH; or,

or,

Optionally, the virtual PDCCH location is:

or,

Optionally, T is defined as one of the following definitions:

wherein mu is the number of the minimum subcarrier interval in PDCCH, PUCCH and PUSCH; z is the required time delay of the A-CSI; d is the number of symbols overlapped between the PDCCH and the scheduled PDSCH; d if the first symbol of PUSCH only contains demodulation reference signal (DMRS)_2,1Not more than 0, otherwise d _2,11 is ═ 1; d if the PDCCH for scheduling PUSCH triggers BWP handover of bandwidth part_2,2Time required for a predetermined BWP handover, otherwise d_2,2＝0；T_cIs the basic time unit in NR, and k is the basic time unit of LTE and the basic time of NRThe ratio between the cells;

Alternatively to this, the first and second parts may,

The entity devices corresponding to the determining unit 501 and the storing unit 502 may be the aforementioned processor 402 or the transceiver 403. The terminal device may be configured to perform the transmission method of HARQ-ACK provided by the embodiments shown in fig. 2-3. Therefore, regarding the functions that can be realized by each functional module in the device, reference may be made to the corresponding descriptions in the embodiments shown in fig. 2 to 3, which are not repeated.

Referring to fig. 6, based on the same inventive concept, an embodiment of the present invention provides a network device, where the network device includes: memory 601, processor 602, and transceiver 603. The memory 601 and the transceiver 603 may be connected to the processor 602 through a bus interface (fig. 6 is taken as an example), or may be connected to the processor 602 through a dedicated connection line.

The memory 601 may be used to store programs, among other things. A transceiver 603 for transceiving data under control of the processor. The processor 602 may be configured to read the program in the memory 601 and execute the following processes:

Optionally, the processor 602 is further configured to:

Optionally, the processor 602 is specifically configured to:

removing the HARQ-ACK corresponding to the first type PDCCH in the HARQ-ACK codebook transmitted on the PUSCH; or,

a Physical Downlink Shared Channel (PDSCH) scheduled by a first type PDCCH;

indicating a PDCCH released by the SPS resource by the first type of PDCCH;

there is no PUSCH scheduled by the corresponding PDCCH;

Optionally, the first PDCCH is:

a virtual PDCCH position corresponding to the PUSCH; or,

a Tth symbol before a first symbol of the PUSCH, wherein T is a preset time delay;

or,

Optionally, the virtual PDCCH location is:

or,

Optionally, T is defined as one of the following definitions:

Alternatively to this, the first and second parts may,

Wherein in fig. 6 the bus architecture may comprise any number of interconnected buses and bridges, with one or more processors, represented in particular by processor 602, and various circuits of memory, represented by memory 601, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 603 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 602 is responsible for managing the bus architecture and general processing, and the memory 601 may store data used by the processor 602 in performing operations.

Alternatively, the Memory 601 may include a Read Only Memory (ROM), a Random Access Memory (RAM), and a disk Memory. The memory 601 is used for storing data required by the processor 602 during operation, that is, storing instructions executable by the at least one processor 602, and the at least one processor 602 executes the transmission method of HARQ-ACK provided by the embodiments shown in fig. 2-3 by executing the instructions stored in the memory 601. The number of the memory 601 is one or more. The memory 601 is also shown in fig. 6, but it should be noted that the memory 601 is not an optional functional module and is therefore shown in fig. 6 by a dotted line.

Referring to fig. 7, based on the same inventive concept, an embodiment of the present invention provides a network device, which includes a determining unit 701 and a storing unit 702.

The determining unit 701 is configured to not receive, on a first type of PUSCH, a downlink-transmitted HARQ-ACK corresponding to a first type of physical downlink control channel PDCCH according to a feedback bit number of the HARQ-ACK if a physical uplink control channel PUCCH carrying the HARQ-ACK overlaps with the first type of physical uplink shared channel PUSCH. The storage unit 702 is used to store data. The memory unit 702 is not essential, and is illustrated by a dotted line.

Optionally, the determining unit 701 is further configured to:

Optionally, the determining unit 701 is specifically configured to:

a Physical Downlink Shared Channel (PDSCH) scheduled by a first type PDCCH;

indicating a PDCCH released by the SPS resource by the first type of PDCCH;

there is no PUSCH scheduled by the corresponding PDCCH;

Optionally, the first PDCCH is:

a virtual PDCCH position corresponding to the PUSCH; or,

or,

Optionally, the virtual PDCCH location is:

or,

Optionally, T is defined as one of the following definitions:

Alternatively to this, the first and second parts may,

The physical devices corresponding to the determining unit 701 and the receiving unit 702 may be the processor 602 or the transceiver 603. The network device may be configured to perform the transmission method of HARQ-ACK provided by the embodiments shown in fig. 2-3. Therefore, regarding the functions that can be realized by each functional module in the device, reference may be made to the corresponding descriptions in the embodiments shown in fig. 2 to 3, which are not repeated.

Based on the same inventive concept, the embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores computer instructions, and when the computer instructions run on a computer, the method for transmitting HARQ-ACK provided by the embodiments shown in fig. 2 to fig. 3 is performed.

The HARQ-ACK transmission method, the terminal equipment and the network equipment provided by the embodiment of the invention can be applied to a wireless communication system, such as a 5G system. However, suitable communication systems include, but are not limited to, a 5G system or an Evolved system thereof, other Orthogonal Frequency Division Multiplexing (OFDM) based systems, DFT-S-OFDM (DFT-Spread OFDM) based systems, Evolved Long Term Evolution (lte) based systems, new network equipment systems, and the like. In practical applications, the connection between the above devices may be a wireless connection or a wired connection.

It should be noted that the communication system may include a plurality of terminal devices, and the network device may communicate (transmit signaling or transmit data) with the plurality of terminal devices. The terminal device according to the embodiments of the present invention may be a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or another processing device connected to a wireless modem. Wireless user equipment, which may be mobile terminals such as mobile telephones (or "cellular" telephones) and computers having mobile terminals, for example, portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices, may communicate with one or more core networks via a Radio Access Network (RAN). Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. A Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), an Access Point (Access Point), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), a User Device (User Device), and a wireless Device (wireless Device).

The network device provided by the embodiments of the present invention may be a base station or may be configured to interconvert received air frames and IP packets as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include Internet Protocol (IP) network devices. The network device may also be a device that coordinates management of attributes for the air interface. For example, the network device may be a network device in a 5G System, such as a Next generation Base Station (Next generation Node B, gNB), a Base Transceiver Station (BTS) in a Global System for Mobile Communication (GSM) or Code Division Multiple Access (CDMA), a Base Station (NodeB) in a Wideband Code Division Multiple Access (WCDMA), or an evolved Node B (eNB or e-NodeB) in LTE, which is not limited in the embodiments of the present invention.

It is to be understood that the terms first, second, and the like in the description of the embodiments of the invention are used for distinguishing between the descriptions and not necessarily for describing a sequential or chronological order. "plurality" in the description of the embodiments of the present invention means two or more.

In some possible embodiments, various aspects of the HARQ-ACK transmission method, the network device and the terminal device provided by the present invention may also be implemented in the form of a program product, which includes program code for causing a computer device to perform the steps in the configuration information selection method according to various exemplary embodiments of the present invention described above in this specification when the program product is run on the computer device, for example, the computer device may perform the HARQ-ACK transmission method provided by the embodiment shown in fig. 2-3.

The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

The program product for the transmission method of HARQ-ACK of the embodiments of the present invention may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be run on a computing device. However, the program product of the present invention is not limited in this regard and, in the present document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

A readable signal medium may include a propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device over any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., over the internet using an internet service provider).

It should be noted that although several units or sub-units of the apparatus are mentioned in the above detailed description, such division is merely exemplary and not mandatory. Indeed, the features and functions of two or more of the units described above may be embodied in one unit, according to embodiments of the invention. Conversely, the features and functions of one unit described above may be further divided into embodiments by a plurality of units.

Moreover, while the operations of the method of the invention are depicted in the drawings in a particular order, this does not require or imply that the operations must be performed in this particular order, or that all of the illustrated operations must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A transmission method of hybrid automatic repeat request acknowledgement (HARQ-ACK) is characterized by comprising the following steps:

if the physical uplink control channel PUCCH bearing the HARQ-ACK is overlapped with a first type physical uplink shared channel PUSCH, determining that the HARQ-ACK of downlink transmission corresponding to the first type physical downlink control channel PDCCH is not transmitted on the first type PUSCH; wherein the first type PDCCH is: a PDCCH transmitted after a first time domain position, the first time domain position being:

a virtual PDCCH position corresponding to the PUSCH; or,

or,

2. The transmission method according to claim 1, wherein determining that the HARQ-ACK for the downlink transmission corresponding to the first type of physical downlink control channel PDCCH does not precede the transmission on the first type of PUSCH, further comprises:

3. The transmission method according to claim 1, wherein determining that the HARQ-ACK for the downlink transmission corresponding to the first type of physical downlink control channel, PDCCH, is not transmitted on the first type of PUSCH comprises:

4. The transmission method according to any of claims 1-3, wherein the downlink transmission corresponding to the first type of PDCCH comprises at least one of the following downlink transmissions:

a Physical Downlink Shared Channel (PDSCH) scheduled by the first type PDCCH;

an SPS PDSCH release indicated by the first type PDCCH;

5. The transmission method according to any of claims 1-3, wherein the first type of PUSCH comprises at least one of the following PUSCHs:

there is no PUSCH scheduled by the corresponding PDCCH;

6. The transmission method of claim 1, wherein the virtual PDCCH locations are:

or,

7. The transmission method according to claim 1 or 6, wherein the definition of T is one of the following definitions:

T＝max((N₂+d_2,1+1)·(2048+144)·κ·2^-μ·T_C,d_2,2)；

T＝max((Z+d)·(2048+144)·κ·2^-μ·T_C,d_2,2)；

T＝(N₂+d_2,1+1)·(2048+144)·κ·2^-μ·T_C；

T＝(Z+d)·(2048+144)·κ·2^-μ·T_C；

wherein mu is the number of the minimum subcarrier interval in PDCCH, PUCCH and PUSCH; z is the required time delay of the A-CSI; d is the number of symbols overlapped between the PDCCH and the scheduled PDSCH; d if the first symbol of PUSCH only contains demodulation reference signal (DMRS)_2,1Not more than 0, otherwise d_2,11 is ═ 1; d if the PDCCH for scheduling PUSCH triggers BWP handover of bandwidth part_2,2Time required for BWP handover, otherwise d_2,2＝0；T_cIs the basic time unit in NR, κ is the ratio between the basic time unit of long term evolution, LTE, and the basic time unit of NR;

8. The transmission method according to claim 1 or 6,

9. A transmission method of hybrid automatic repeat request acknowledgement (HARQ-ACK) is characterized by comprising the following steps:

wherein the first type PDCCH is: a PDCCH transmitted after a first time domain position, the first time domain position being:

a virtual PDCCH position corresponding to the PUSCH; or,

or,

10. The transmission method according to claim 9, wherein before receiving HARQ-ACK for downlink transmission corresponding to a first type physical downlink control channel PDCCH on the first type PUSCH in accordance with the number of feedback bits of the HARQ-ACK, the method further includes:

11. The transmission method according to claim 9, wherein not receiving HARQ-ACK for downlink transmission corresponding to a first type physical downlink control channel PDCCH on the first type PUSCH in terms of the number of feedback bits for the HARQ-ACK comprises:

12. The transmission method according to any of claims 9-11, wherein the downlink transmission corresponding to the first type of PDCCH comprises at least one of the following downlink transmissions:

a Physical Downlink Shared Channel (PDSCH) scheduled by the first type PDCCH;

an SPS PDCCH release indicated by the first type PDCCH;

13. The transmission method according to any of claims 9-11, wherein the first type of PUSCH comprises at least one of the following PUSCHs:

there is no PUSCH scheduled by the corresponding PDCCH;

14. The transmission method of claim 9, wherein the virtual PDCCH locations are:

or,

15. The transmission method of claim 14,

the definition of T is one of the following definitions:

wherein mu is the number of the minimum subcarrier interval in PDCCH, PUCCH and PUSCH; z is the required time delay of the A-CSI; d is the number of symbols overlapped between the PDCCH and the scheduled PDSCH; d if the first symbol of PUSCH only contains demodulation reference signal (DMRS)_2,1Not more than 0, otherwise d_2,11 is ═ 1; d if the PDCCH for scheduling PUSCH triggers BWP handover of bandwidth part_2,2Time required for a predetermined BWP handover, otherwise d_2,2＝0；T_cIs the basic time unit in NR, κ is the ratio between the basic time unit of long term evolution, LTE, and the basic time unit of NR;

16. The transmission method of claim 14,

17. A terminal device, comprising:

a memory to store instructions;

if the physical uplink control channel PUCCH bearing the HARQ-ACK is overlapped with a first type physical uplink shared channel PUSCH, determining that the HARQ-ACK of downlink transmission corresponding to the first type physical downlink control channel PDCCH is not transmitted on the first type PUSCH; the first type PDCCH is as follows: a PDCCH transmitted after a first time domain position, the first time domain position being:

a virtual PDCCH position corresponding to the PUSCH; or,

a Tth symbol before a first symbol of the PUSCH, wherein T is a predetermined time delay; or, a predetermined downlink symbol or Flexible symbol or PDCCH detection opportunity meeting a preset condition; wherein the preset conditions are as follows: before the first symbol of the PUSCH, and the interval with the first symbol is not lower than the T symbols, wherein T is a preset time delay; or in a Kth time slot before the time slot of the PUSCH, wherein K is a scheduling timing value corresponding to the first PUSCH; or, in a time slot which is before the time slot of the PUSCH and has a time slot interval with the time slot of the PUSCH not less than K time slots, where K is a scheduling timing value corresponding to the first PUSCH;

a transceiver for transceiving data under control of the processor.

18. The terminal device of claim 17, wherein the processor is further configured to:

19. The terminal device of claim 17, wherein the processor is specifically configured to:

20. The terminal device according to any of claims 17-19, wherein the downlink transmission corresponding to the first type PDCCH comprises at least one of the following downlink transmissions:

a Physical Downlink Shared Channel (PDSCH) scheduled by the first type PDCCH;

an SPS PDSCH release indicated by the first type PDCCH;

21. The terminal device according to any of claims 17-19, wherein the first type of PUSCH comprises at least one of the following PUSCHs:

there is no PUSCH scheduled by the corresponding PDCCH;

22. The terminal device of claim 17, wherein the virtual PDCCH locations are:

or,

23. The terminal device according to claim 17 or 22, wherein the definition of T is one of the following definitions:

wherein mu is the number of the minimum subcarrier interval in PDCCH, PUCCH and PUSCH; z is the required time delay of the A-CSI; d is PDCCH andnumber of symbols overlapped between scheduled PDSCHs; d if the first symbol of PUSCH only contains demodulation reference signal (DMRS)_2,1Not more than 0, otherwise d_2,11 is ═ 1; d if the PDCCH for scheduling PUSCH triggers BWP handover of bandwidth part_2,2Time required for a predetermined BWP handover, otherwise d_2,2＝0；T_cIs the basic time unit in NR, κ is the ratio between the basic time unit of long term evolution, LTE, and the basic time unit of NR;

24. The terminal device of claim 22,

25. A network device, comprising:

a memory to store instructions;

if the physical uplink control channel PUCCH bearing the HARQ-ACK is overlapped with a first type physical uplink shared channel PUSCH, not receiving the HARQ-ACK of downlink transmission corresponding to the first type physical downlink control channel PDCCH on the first type PUSCH according to the feedback bit number of the HARQ-ACK; wherein the first type PDCCH is: a PDCCH transmitted after a first time domain position, the first time domain position being:

a virtual PDCCH position corresponding to the PUSCH; or, the tth symbol before the first symbol of the PUSCH, where T is a predetermined delay; or, a predetermined downlink symbol or Flexible symbol or PDCCH detection opportunity meeting a preset condition; wherein the preset conditions are as follows: before the first symbol of the PUSCH, and the interval with the first symbol is not lower than the T symbols, wherein T is a preset time delay; or in a Kth time slot before the time slot of the PUSCH, wherein K is a scheduling timing value corresponding to the first PUSCH; or, in a time slot which is before the time slot of the PUSCH and has a time slot interval with the time slot of the PUSCH not less than K time slots, where K is a scheduling timing value corresponding to the first PUSCH;

a transceiver for transceiving data under control of the processor.

26. The network device of claim 25, wherein the processor is further configured to:

27. The network device of claim 25, wherein the processor is specifically configured to:

28. The network device of any of claims 25-27, wherein the downlink transmissions scheduled by the first type of PDCCH comprise at least one of the following downlink transmissions:

a Physical Downlink Shared Channel (PDSCH) scheduled by the first type PDCCH;

an SPS PDCCH release indicated by the first type PDCCH;

29. The network device of any of claims 25-27, wherein the first type of PUSCH comprises at least one of the following PUSCHs:

there is no PUSCH scheduled by the corresponding PDCCH;

30. The network device of claim 25, wherein the virtual PDCCH locations are:

or,

31. The network device of claim 30,

the definition of T is one of the following definitions:

32. The network device of claim 31,

33. A terminal device, comprising:

a determining unit, configured to determine that a downlink-transmitted HARQ-ACK corresponding to a first type physical downlink control channel PDCCH is not transmitted on a first type PUSCH if a physical uplink control channel PUCCH carrying the HARQ-ACK overlaps with the first type physical uplink shared channel PUSCH;

a virtual PDCCH position corresponding to the PUSCH; or, the tth symbol before the first symbol of the PUSCH, where T is a predetermined delay; or, a predetermined downlink symbol or Flexible symbol or PDCCH detection opportunity meeting a preset condition; wherein the preset conditions are as follows: before the first symbol of the PUSCH, and the interval with the first symbol is not lower than the T symbols, wherein T is a preset time delay; or in a Kth time slot before the time slot of the PUSCH, wherein K is a scheduling timing value corresponding to the first PUSCH; or, before the time slot of the PUSCH, in a time slot which is not less than K time slots apart from the time slot of the PUSCH, where K is a scheduling timing value corresponding to the first PUSCH.

34. A network device, comprising:

a determining unit, configured to not receive, on a first type of PUSCH, a downlink-transmitted HARQ-ACK corresponding to a first type of physical downlink control channel PDCCH according to a feedback bit number of the HARQ-ACK if a physical uplink control channel PUCCH carrying the HARQ-ACK overlaps with the first type of physical uplink shared channel PUSCH;

35. A computer storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing the method of any one of claims 1-8 or 9-16.