CN111435872B

CN111435872B - HARQ-ACK feedback method and terminal

Info

Publication number: CN111435872B
Application number: CN201910108509.0A
Authority: CN
Inventors: 司倩倩; 高雪娟
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-01-11
Filing date: 2019-01-18
Publication date: 2022-04-08
Anticipated expiration: 2039-01-18
Also published as: CN111435872A

Abstract

The embodiment of the invention provides a HARQ-ACK feedback method and a terminal, wherein the method comprises the following steps: acquiring a feedback time sequence set, wherein the basic unit of the feedback time sequence in the feedback time sequence set is less than 1 time slot; and generating HARQ-ACK feedback information according to the feedback time sequence set and feeding back the HARQ-ACK feedback information in an uplink time slot. The embodiment of the invention provides a specific generation method of a semi-static codebook when the granularity of a feedback time sequence is changed, and the HARQ-ACK of downlink transmission can be ensured to be fed back normally.

Description

HARQ-ACK feedback method and terminal

Technical Field

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

Background

At present, in an NR (New Radio, New wireless) communication system, a semi-static codebook and a dynamic codebook scheme are used to support HARQ-ACK (hybrid automatic Repeat request-ACK) feedback. When the terminal is configured to use the semi-static HARQ-ACK codebook, the UE (terminal) first determines a PDSCH position set M corresponding to the same timeslot n on each carrier c for HARQ-ACK feedback according to the HARQ-ACK feedback timing sequence (K1), the semi-static timeslot structure (if configured), and the candidate time domain resource allocation information of the PDSCH (Physical Downlink Shared Channel)_A，c. Then according to M_A，cAnd mapping the HARQ-ACK of the PDSCH received in the PDSCH position set to the corresponding position in the HARQ-ACK feedback sequence, thereby obtaining the HARQ-ACK codebook transmitted in the time slot n. Specifically, the UE first determines the number of downlink timeslots to be fed back in an uplink timeslot on a carrier based on the HARQ feedback timing configured by the higher layer signaling, and then determines that each downlink timeslot can be fed back in the downlink timeslotsThe maximum number of transmitted PDSCHs. If a semi-static downlink time slot structure is configured, the candidate PDSCH which does not meet the PDSCH transmission condition is removed based on the downlink time slot structure. When carrier aggregation exists, the HARQ-ACK codebook on each carrier needs to be determined according to the process, and finally the HARQ-ACK codebooks of different carriers are cascaded according to the carrier sequence to obtain the final HARQ-ACK codebook.

Currently, a 5G (fifth generation mobile communication technology) NR only supports one PUCCH (Physical Uplink Control Channel) to carry HARQ-ACK in Rel-15 (release 15) phase, that is, the value of K1 is in units of slots, that is, K1 ═ 1 indicates interval 1 slots, and in Rel-16 phase, multiple PUCCHs are supported to carry HARQ-ACK, and one possible way is to support multiple PUCCHs to carry HARQ-ACK in one slot by changing the granularity of feedback timing (HARQ-ACK timing) between downlink transmission and HARQ-ACK transmission thereof, for example, the granularity of K1 is defined as half slots, that is, K1 ═ 1 indicates interval 0.5 slots. However, when the feedback timing granularity is changed, no specific HARQ-ACK feedback method exists at present.

Disclosure of Invention

The embodiment of the invention provides a HARQ-ACK feedback method and a terminal, which aim to solve the problem that no specific generation method of a semi-static codebook when the feedback time sequence granularity changes exists in the prior art.

In order to achieve the above object, an embodiment of the present invention provides a HARQ-ACK feedback method, including:

acquiring a feedback time sequence set, wherein the basic unit of the feedback time sequence in the feedback time sequence set is less than 1 time slot;

and generating HARQ-ACK feedback information according to the feedback time sequence set and feeding back the HARQ-ACK feedback information in an uplink time slot.

Optionally, the step of generating HARQ-ACK feedback information according to the feedback timing sequence set and feeding back the HARQ-ACK feedback information in an uplink timeslot includes:

determining a time slot of a candidate downlink transmission position corresponding to the PUCCH transmitted in the uplink time slot according to the feedback time sequence set;

and feeding back the HARQ-ACK feedback information on the PUCCH in the uplink time slot aiming at the data received at the candidate downlink transmission position.

Optionally, the step of determining, according to the feedback timing sequence set, a slot of a candidate downlink transmission position corresponding to the PUCCH transmitted in the uplink slot includes:

converting the feedback time sequence set into a new feedback time sequence set of which the basic unit of the feedback time sequence is 1 time slot, and obtaining the time slot of the corresponding candidate downlink transmission position according to the new feedback time sequence in the new feedback time sequence set; or,

dividing the feedback time sequence set into at least one first feedback time sequence subset, wherein downlink time slots corresponding to feedback time sequences belonging to the same first feedback time sequence subset are the same, converting the feedback time sequences in the first feedback time sequence subset into new feedback time sequences with the basic unit of 1 time slot, and determining the time slots of candidate downlink transmission positions corresponding to the first feedback time sequence subset according to the new feedback time sequences; or,

dividing the feedback time sequence set into m second feedback time sequence subsets, dividing an uplink time slot into N time slot units, wherein each time slot unit corresponds to one second feedback time sequence subset, N is the number of the basic units contained in one time slot, and m is less than or equal to N; converting the second feedback time sequence subset into a new second feedback time sequence subset of which the basic unit of the feedback time sequence is 1 time slot; and obtaining the time slot of the corresponding candidate downlink transmission position according to the new second feedback time sequence subset.

Optionally, the step of converting the feedback timing set into a new feedback timing set with a basic unit of feedback timing being 1 timeslot includes:

when the feedback time sequence K1 in the feedback time sequence set represents the number of the basic units, respectively aiming at each feedback time sequence K1 in the feedback time sequence set, calculating to obtain a new feedback time sequence K1 ', and deleting the repeated K1' value to obtain the new feedback time sequence set, wherein,

or,

or,

when the feedback time sequence K1 in the feedback time sequence set is an integral multiple of the basic unit, respectively calculating to obtain a new feedback time sequence K1 'for each feedback time sequence K1 in the feedback time sequence set, and deleting the repeated K1' value to obtain the new feedback time sequence set, wherein,

or,

n is the number of basic units of the feedback timing sequence included in 1 slot, and N is an integer greater than 1.

Optionally, the basic unit of the feedback timing in the feedback timing set is agreed by a protocol or configured through a high-layer signaling.

Optionally, the number of the feedback timings K1 in the first feedback timing subset is less than or equal to N, where N is the number of basic units of the feedback timings included in 1 timeslot, and N is an integer greater than 1.

Optionally, when the values of the feedback timings K1 in the feedback timing set are arranged in order of magnitude, and the value of K1 represents the number of the basic units,

a starting value of at least a portion of the first subset of feedback timings is a K1 value that satisfies mod (K1, N) ═ 0;

or,

the starting value of at least a portion of the first subset of feedback timings is a K1 value that satisfies mod (K1, N) ═ 1.

Optionally, when the value K1 indicates the number of the basic units, the value K1 belonging to the same first feedback timing subset satisfies the following condition: k1 is greater than or equal to x₁N is less than (x)₁+1)N，x₁Different first feedback time sequence subsets correspond to different x for non-negative integers₁A value;

or,

the K1 values belonging to the same first feedback timing subset satisfy the following condition: k1 is greater than or equal to x₁N +1 and less than (x)₁+1)N+1，x₁Different first feedback time sequence subsets correspond to different x for an integer greater than or equal to-1₁The value is obtained.

Optionally, when the feedback timing K1 values in the feedback timing set are arranged in order of magnitude, and the K1 value is an integer multiple of the basic unit,

the starting value of at least part of the first subset of feedback timings is a value of K1 that satisfies the following condition: k1 is 1/N + l, l is a non-negative integer;

or,

the starting value of at least part of the first subset of feedback timings is a value of K1 that satisfies the following condition: k1 is a non-negative integer.

Optionally, when the K1 value is an integer multiple of the basic unit, the K1 values belonging to the same first feedback timing subset satisfy the following condition: k1 is greater than or equal to x₂And is less than x₂+1，x₂Different first feedback time sequence subsets correspond to different x for non-negative integers₂A value;

or,

the K1 values belonging to the same first feedback timing subset satisfy the following condition: k1 is greater than or equal to 1/N + x₂And less than 1/N + x₂+1，x₂Different first feedback time sequence subsets correspond to different x for an integer greater than or equal to-1₂The value is obtained.

Optionally, when the feedback timing K1 in the feedback timing set represents the number of the basic units,

the value of K1 in the second feedback timing subset corresponding to the xth slot unit satisfies the following condition: mod (K1-1, N) ═ x-1; or,

the value of K1 in the second feedback timing subset corresponding to the xth slot unit satisfies the following condition: mod (K1, N) ═ x-1;

wherein x is an integer greater than 0 and less than or equal to N.

Optionally, when the feedback timing K1 in the feedback timing set is an integer multiple of the basic unit,

the value of K1 in the second feedback timing subset corresponding to the xth slot unit satisfies the following condition: mod (K1 × N-1, N) ═ x-1; or,

the value of K1 in the second feedback timing subset corresponding to the xth slot unit satisfies the following condition: mod (K1 × N, N) ═ x-1;

wherein x is an integer greater than 0 and less than or equal to N.

and feeding back the HARQ-ACK feedback information to the network side equipment only on the PUCCH in the slot unit corresponding to the feedback timing K1 indicated by the DCI.

An embodiment of the present invention further provides a terminal, including:

the acquisition module is used for acquiring a feedback time sequence set, and the basic unit of the feedback time sequence in the feedback time sequence set is less than 1 time slot;

and the feedback module is used for generating HARQ-ACK feedback information according to the feedback time sequence set and feeding back the HARQ-ACK feedback information in an uplink time slot.

Optionally, the feedback module includes:

a time slot determining submodule, configured to determine, according to the feedback timing sequence set, a time slot of a candidate downlink transmission position corresponding to the PUCCH transmitted in the uplink time slot;

and the first feedback submodule is used for feeding back the HARQ-ACK feedback information on the PUCCH in the uplink time slot aiming at the data received at the candidate downlink transmission position.

Optionally, the timeslot determining submodule includes:

a first unit, configured to convert the feedback timing sequence set into a new feedback timing sequence set with a basic unit of a feedback timing sequence being 1 time slot, and obtain a time slot of a corresponding candidate downlink transmission position according to a new feedback timing sequence in the new feedback timing sequence set; or,

a second unit, configured to divide the feedback timing set into at least one first feedback timing subset, where downlink time slots corresponding to feedback timings belonging to the same first feedback timing subset are the same, convert a feedback timing in the first feedback timing subset into a new feedback timing with a basic unit of 1 time slot, and determine, according to the new feedback timing, a time slot of a candidate downlink transmission position corresponding to the first feedback timing subset; or,

a third unit, configured to divide the feedback timing set into m second feedback timing subsets, and divide an uplink timeslot into N timeslot units, where each timeslot unit corresponds to one of the second feedback timing subsets, N is the number of the basic units included in one timeslot, and m is less than or equal to N; converting the second feedback time sequence subset into a new second feedback time sequence subset of which the basic unit of the feedback time sequence is 1 time slot; and obtaining the time slot of the corresponding candidate downlink transmission position according to the new second feedback time sequence subset.

Optionally, the first unit includes:

a first calculating subunit, configured to, when the feedback timings K1 in the feedback timing set represent the number of the basic units, calculate a new feedback timing K1 'for each feedback timing K1 in the feedback timing set, and delete duplicate values of K1' to obtain the new feedback timing set, which is the set of feedback timingsIn (1),

or,

a second calculating subunit, configured to, when the feedback timings K1 in the feedback timing set represent the number of the basic units, calculate a new feedback timing K1 'for each feedback timing K1 in the feedback timing set, and delete duplicate values of K1' to obtain the new feedback timing set, where,

or,

a third calculating subunit, configured to calculate a new feedback timing K1 'for each feedback timing K1 in the feedback timing set when the feedback timing K1 in the feedback timing set is an integer multiple of the basic unit, and delete duplicate values of K1' to obtain the new feedback timing set, where,

or,

a fourth calculating subunit, configured to calculate a new feedback timing K1 'for each feedback timing K1 in the feedback timing set when the feedback timing K1 in the feedback timing set is an integer multiple of the basic unit, and delete duplicate values of K1' to obtain the new feedback timing set, where,

or,

wherein x is an integer greater than 0 and less than or equal to N.

Optionally, the feedback module includes:

and the second feedback submodule is used for feeding back the HARQ-ACK feedback information to the network side equipment only on the PUCCH in the slot unit corresponding to the feedback timing K1 indicated by the DCI.

An embodiment of the present invention further provides a terminal, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:

Optionally, the processor, when executing the computer program, further implements the following steps:

the step of generating HARQ-ACK feedback information according to the feedback time sequence set and feeding back the HARQ-ACK feedback information in an uplink time slot comprises the following steps:

the step of determining the slot of the candidate downlink transmission position corresponding to the PUCCH transmitted in the uplink slot according to the feedback timing sequence set includes:

the step of converting the set of feedback timings into a new set of feedback timings with a basic unit of 1 slot of feedback timings comprises:

or,

or,

when the feedback timing K1 in the feedback timing set is an integer multiple of the basic unitCalculating a new feedback timing K1 'for each feedback timing K1 in the set of feedback timings, respectively, and deleting the repeated K1' values to obtain the set of new feedback timings, wherein,

or,

or,

wherein x is an integer greater than 0 and less than or equal to N.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in any of the HARQ-ACK feedback methods described above.

The embodiment of the invention provides a specific generation method of a semi-static HARQ-ACK codebook (namely HARQ-ACK feedback information) when the granularity (namely the basic unit of a feedback time sequence) of the feedback time sequence is changed (for example, less than 1 time slot), so as to ensure that the HARQ-ACK of downlink transmission can be fed back normally.

Drawings

FIG. 1 is a schematic diagram of a network architecture to which embodiments of the present invention may be applied;

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

FIGS. 3(a) -3(c) are schematic diagrams of time slots for determining candidate downlink transmission positions according to an embodiment of the present invention;

fig. 4(a) -4(c) are schematic diagrams of time slots for determining candidate downlink transmission positions according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a terminal in a fifth embodiment of the present invention;

fig. 6 is a schematic structural diagram of a terminal in a sixth embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, fig. 1 is a schematic diagram of a network structure to which the embodiment of the present invention is applicable, and as shown in fig. 1, the network structure includes a terminal 11 and a network side device 12, where the terminal 11 may be a User Equipment (UE) or other terminal devices, for example: terminal side equipment such as a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), or a Wearable Device (Wearable Device) is not limited to a specific type of terminal in the embodiments of the present invention. The network side device 12 may be a base station, for example: macro station, LTE eNB, 5G NR NB, etc.; the network side device may also be a small station, such as a Low Power Node (LPN), pico, femto, or an Access Point (AP); the base station may also be a network node that is composed of a Central Unit (CU) and a plurality of Transmission Reception Points (TRPs) whose management is and controls. It should be noted that, in the embodiment of the present invention, the specific type of the network-side device is not limited.

Generating a feedback codebook according to the granularity of K1, and generating HARQ-ACK feedback information according to the existing mode when the granularity of K1 is equal to 1 time slot; when the granularity of K1 is less than 1 slot, HARQ-ACK feedback information is generated as follows.

Referring to fig. 2, fig. 2 is a flowchart illustrating a HARQ-ACK feedback method according to an embodiment of the present invention, including the following steps:

201. acquiring a feedback time sequence set, wherein the basic unit of the feedback time sequence in the feedback time sequence set is less than 1 time slot;

202. and generating HARQ-ACK feedback information according to the feedback time sequence set and feeding back the HARQ-ACK feedback information in an uplink time slot.

The embodiment of the invention provides a specific generation method of a semi-static HARQ-ACK codebook (namely HARQ-ACK feedback information) when the feedback time sequence granularity (HARQ-ACK feedback information) is changed (for example, less than 1 time slot), and ensures that the HARQ-ACK of downlink transmission can be fed back normally.

The HARQ-ACK feedback method described above is exemplified below.

Preferably, the step of generating HARQ-ACK feedback information according to the feedback timing set and feeding back the HARQ-ACK feedback information in an uplink timeslot includes:

Preferably, the step of determining, according to the feedback timing sequence set, a slot of a candidate downlink transmission position corresponding to the PUCCH transmitted in the uplink slot includes:

dividing the feedback time sequence set into m second feedback time sequence subsets, dividing an uplink time slot into N time slot units, wherein each time slot unit corresponds to one second feedback time sequence subset, N is the number of the basic units contained in one time slot, and m is less than or equal to N; converting the second feedback time sequence subset into a new second feedback time sequence subset of which the basic unit of the feedback time sequence is 1 time slot; and obtaining the time slot of the corresponding candidate downlink transmission position according to the new second feedback time sequence subset. Specifically, the candidate downlink transmission position corresponding to the PUCCH is determined according to the K1 value set corresponding to the PUCCH transmitted in the different slot units, and HARQ-ACK feedback information is generated based on the PDSCH received in the candidate downlink transmission position.

or,

or,

or,

or,

Since the K1 values configured by the network side device, i.e. the base station, may not be continuous, there may not be a starting value satisfying the above condition in part of the first feedback timing subset. For example, the feedback timing set is {1,4,5,6,7}, and if the first feedback timing subset is divided in the first manner, which requires that the initial value of the first feedback timing subset is K1 value satisfying mod (K1, N) ═ 0, the first feedback timing subset is {1}, the second first feedback timing subset is {4,5}, and the third first feedback timing subset is {6,7 }. There is no starting value in the first subset of feedback sequences that satisfies mod (K1, N) ═ 0.

Further, when the value of K1 indicates the number of the basic units, the value of K1 belonging to the same first feedback timing subset satisfies the following condition: k1 is greater than or equal to x₁N is less than (x)₁+1)N，x₁Different first feedback time sequence subsets correspond to different x for non-negative integers₁A value;

or,

Similarly, since the K1 values configured by the network side device, that is, the base station, may not be continuous, there may not be a starting value satisfying the above condition in part of the first feedback timing subset.

Further, when the K1 value is an integer multiple of the basic unit, the K1 values belonging to the same first feedback timing subset satisfy the following condition: k1 is greater than or equal to x₂And is less than x₂+1，x₂A non-negative integer, different said first subset of feedback timingsCorresponding to different x₂A value;

or,

Specifically, after dividing the feedback timing set into at least one first feedback timing subset, the method for converting the feedback timing in the first feedback timing subset into a new feedback timing with a basic unit of 1 timeslot may refer to the above.

wherein x is an integer greater than 0 and less than or equal to N.

Specifically, after dividing the feedback timing sequence set into N second feedback timing sequence subsets, the method for converting the feedback timing sequence in the second feedback timing sequence subset into a new feedback timing sequence with a basic unit of 1 timeslot may refer to the above.

and feeding back the HARQ-ACK feedback Information to the network side equipment only on the PUCCH in the slot unit corresponding to the feedback timing K1 indicated by the DCI (Downlink Control Information).

Specifically, for the received PDSCH or the PDCCH indicating SPS PDSCH release, the terminal feeds back HARQ-ACK feedback information only on the PUCCH in the slot unit corresponding to K1 indicated by the DCI.

Optionally, N in the embodiment of the present invention is agreed by a protocol or configured by a high layer signaling, or a basic unit (i.e., 1/N) of a feedback timing in the feedback timing set is agreed by a protocol or configured by a high layer signaling.

In the second embodiment of the present invention, the K1 set with granularity (i.e. the basic unit of the feedback timing) less than 1 timeslot configured by the base station is converted into a new K1 'set with granularity of 1 timeslot, and then HARQ-ACK feedback information is generated according to the new K1' set.

Specifically, the method for converting the K1 set with the granularity smaller than 1 time slot configured by the base station into the new K1' set with the granularity of 1 time slot may include the following steps:

the first method comprises the following steps: according to the formula

Converting each K1 value in the K1 set into K1 ' with granularity of 1 time slot respectively, and then deleting the overlapped K1 ' value to obtain a new K1 ' set; where K1 is an integer, indicating the number of the basic units, and is, for example, {0,1,2,3,4,5,6,7,8 … }, N is the number of basic units of the feedback timing included in 1 slot, N is a predetermined value or a value allocated in a higher layer, and when the basic unit of the feedback timing is, for example, half a slot, N is 2;

and the second method comprises the following steps: according to the formula

Converting each K1 value in the K1 set to K1' with granularity of 1 time slot, respectively, as with the first method;

and the third is that: according to the formula

Converting each K1 value in the K1 set into K1 ' with granularity of 1 time slot respectively, and then deleting the overlapped K1 ' value to obtain a new K1 ' set; where K1 is an integer multiple of 1/N (i.e., the basic unit), N is the number of basic units of the feedback timing included in 1 slot, and N is a predetermined value or a higher-level configuration value, for example, when the basic unit of the feedback timing is a half slot, N is 2, then the candidate value of K1 may be {0,0.5,1,1.5,2,2.5,3,3.5,4 … };

and fourthly: according to the formula

Each K1 value in the set of K1 is converted to K1' with granularity of 1 slot, respectively, as is the case with the third method described above.

The generating of the HARQ-ACK feedback information according to the new K1' set includes:

the procedure of generating the Semi-static codebook is the same as the prior art, that is, the PDSCH candidate transmission position is determined based on the new K1', and then the Semi-static codebook is generated based on the PDSCH received by each carrier in the PDSCH candidate transmission position or the PDCCH indicating the SPS (Semi-persistent scheduling) PDSCH release.

The four methods for converting the K1 set with granularity less than 1 timeslot configured by the base station into a new K1' set with granularity of 1 timeslot are illustrated below.

For example, the HARQ feedback timing K1 configured by the base station to the UE is set to {1,2,3,4}, the granularity of K1 is half a slot, that is, the basic unit of the feedback timing is 0.5 slots, K1 ═ 1 denotes a length of 0.5 slots, N is the number of basic units of the feedback timing contained in 1 slot, and N ═ 2 is predefined. Assuming that the base station configures the terminal to use single carrier transmission, single codeword transmission and TB-based transmission, when the terminal determines the HARQ-ACK feedback codebook carried by the PUCCH transmitted in slot n, it needs to first convert the K1 set into the K1' set, specifically:

when the first mode described above in this embodiment is used, the UE follows the formula

The set {1,1,2,2} is obtained, and after deleting the repeated elements, a new set of K1' is obtained as {1,2}, so the UE can determine that the HARQ-ACK feedback codebook carried by the PUCCH transmitted in slot n corresponds to the PDSCH candidate transmission positions in slot n-1 and slot n-2, that is, the PDSCH transmitted in slot n-1 and slot n-2 can transmit HARQ-ACK in slot n, the PUCCH in the first half slot in slot n corresponds to HARQ-ACK feedback for PDSCH scheduled by DCI indicating odd number K1, and the PUCCH in the second half slot in slot n corresponds to HARQ-ACK feedback for PDSCH scheduled by DCI indicating even number K1. Assuming that there are 2 candidate PDSCH transmission positions in the time slot n-2 and the time slot n-1, respectively, there are 4 PDSCH candidate transmission positions in total. For example:

referring to fig. 3(a), assuming that the base station schedules PDSCH transmission in 2 PDSCH candidate transmission positions in slot n-2, the values of K1 indicated in the corresponding DCI are all 3, PDSCH transmission is scheduled in 2 PDSCH candidate transmission positions in slot n-1, and the values of K1 indicated in the corresponding DCI are all 1, when the UE correctly receives PDSCH transmissions in slot n-2 and 4 in slot n-1, the HARQ-ACK codebook fed back by the terminal on the PUCCH in the first half of slot n is 1111, and HARQ-ACK information is not fed back in the second half of slot n.

Referring to fig. 3(b), assuming that the base station schedules PDSCH transmission in 2 PDSCH candidate transmission positions in slot n-2, the values of K1 indicated in the corresponding DCI are all 4, PDSCH transmission is scheduled in 2 PDSCH candidate transmission positions in slot n-1, and the values of K1 indicated in the corresponding DCI are all 2, the terminal does not feed back HARQ-ACK information in the first half slot of slot n and feeds back HARQ-ACK codebook in the second half slot of slot n as 1111 when the UE correctly receives 4 PDSCH transmissions in slot n-2 and slot n-1.

Referring to fig. 3(c), assuming that the base station schedules PDSCH transmission in 2 PDSCH candidate transmission positions in slot n-2, the value of K1 indicated in DCI corresponding to the first PDSCH is 3, the value of K1 indicated in DCI corresponding to the second PDSCH is 4, PDSCH transmission is scheduled in 2 PDSCH candidate transmission positions in slot n-1, and the values of K1 indicated in DCI are 2, when the UE correctly receives 4 PDSCH transmissions in slot n-2 and slot n-1, the HARQ-ACK codebook fed back by the terminal on the PUCCH in the first half of slot n is 1000, and the HARQ-ACK codebook fed back on the PUCCH in the second half of slot n is 0111.

When using the second approach described above in this embodiment, the UE follows the formula

The set {0,1,1,2} is obtained, and after deleting the repeated elements, a new set of K1' is obtained as {0,1,2}, so the UE can determine PDSCH candidate transmission positions in slot n, slot n-1 and slot n-2, and assuming that there are 2 candidate PDSCH transmission positions in slot n-2, slot n-1 and slot n, respectively, there are 6 PDSCH candidate transmission positions in total. For example:

referring to fig. 4(a), it is assumed that the base station schedules PDSCH transmission in all 2 PDSCH candidate transmission positions in slot n-2, the values of K1 indicated in the corresponding DCI are all 4, PDSCH transmission is scheduled in all 2 PDSCH candidate transmission positions in slot n-1, the values of K1 indicated in the corresponding DCI are all 2, and PDSCH transmission is not scheduled in slot n, then under the condition that the UE correctly receives PDSCH transmission in slot n-2 and 4 PDSCH transmissions in slot n-1, the HARQ-ACK codebook fed back by the terminal on the PUCCH in the first half slot of slot n is 111100, and HARQ-ACK information is not fed back in the second half slot of slot n.

Referring to fig. 4(b), assuming that the base station does not schedule PDSCH transmission in slot n-2, PDSCH transmission is scheduled in 2 PDSCH candidate transmission positions in slot n-1, corresponding K1 values indicated in DCI are both 3, PDSCH transmission is scheduled in two PDSCH candidate transmission positions in slot n, and corresponding K1 values indicated in DCI are both 1, then under the condition that the UE correctly receives PDSCH transmission in slot n-1 and 4 PDSCH transmissions in slot n, the terminal does not feed back HARQ-ACK information in the first half slot of slot n, and the HARQ-ACK codebook fed back on the PUCCH in the second half slot of slot n is 001111.

Referring to fig. 4(c), assuming that the base station schedules PDSCH transmission in 2 PDSCH candidate transmission positions in slot n-2, the values of K1 indicated in the corresponding DCI are all 4, PDSCH transmission is scheduled in 2 PDSCH candidate transmission positions in slot n-1, the values of K1 indicated in the corresponding DCI are all 3, PDSCH transmission is scheduled in the first PDSCH candidate transmission position in slot n, and the value of K1 indicated in the corresponding DCI is 1, under the condition that the UE correctly receives PDSCH transmission in slot n-2, slot n-1 and 5 PDSCH transmissions in slot n, the HARQ-ACK codebook fed back by the terminal on the PUCCH in the first half of slot n is 110000, and the HARQ-ACK codebook fed back on the PUCCH in the second half of slot n is 001110.

For another example, the HARQ feedback timing K1 configured by the base station to the UE is set to {0.5,1,1.5,2}, the granularity of K1 is half a slot, that is, the basic unit of the feedback timing is 0.5 slots, K1 ═ 0.5 indicates a length of 0.5 slots, N is the number of basic units of the feedback timing included in 1 slot, and N is predefined to be 2. Assuming that the base station configures the terminal to use single carrier transmission, single codeword transmission and TB-based transmission, when the terminal determines the HARQ-ACK feedback codebook carried by the PUCCH transmitted in slot n, it needs to first convert the K1 set into the K1' set, specifically:

when the third mode in the embodiment of the present invention is used, the UE follows the formula

The set {1,1,2,2} is obtained, and the repeated elements are deleted to obtain a new set {1,2} of K1', and the remaining specific process is as illustrated in the above second embodiment when the first manner of the first embodiment is used.

When the above fourth mode in the embodiment of the present invention is used, the UE follows the formula

The set {0,1,1,2} is obtained, and the repeated elements are deleted to obtain a new set of K1' of {0,1,2}, and the rest of the specific process is as described in the above example two using the second method of the first example.

In the third embodiment of the present invention, assuming that N is the number of basic units of a feedback timing sequence included in 1 slot, and the value of N is predefined in a standard or configured through a high layer signaling, for a semi-static codebook transmitted in a PUCCH of an uplink slot, since N consecutive K1 values correspond to a same downlink slot, in a process of generating a codebook, N consecutive K1 values respectively correspond to a same feedback bit position in a semi-static feedback codebook of different PUCCHs in an uplink slot, specifically:

assuming that the HARQ feedback timing K1 configured by the base station is an integer and indicates the number of the basic units, for example, {0,1,2,3,4,5,6,7,8 … }, and assuming that the number of the basic units of the feedback timing contained in the predefined or higher-layer configuration 1 slots is 2, that is, the basic unit of the feedback timing is half of a slot, and N is 2; the first subset of feedback timings may be obtained in several ways:

the first method comprises the following steps: the N consecutive K1 values are 2K 1 values, i.e., 0 and 1,2 and 3,4 and 5, … …, consecutive from mod (K1,2) ═ 0.

And the second method comprises the following steps: n consecutive values of K1 are 2 values of K1, i.e. 1 and 2,3 and 4,5 and 6, … …, consecutive from mod (K1,2) ═ 1, in particular when K1 is 0, an independent value, not consecutive to it.

It should be noted that the value of K1 configured by higher layer signaling may be discontinuous, for example, the configured K1 set is {1,4,5,6,7}, and the base station configures the terminal to use single carrier transmission, single codeword transmission and TB-based transmission, and includes 1 PDSCH transmission position in one downlink slot, if the first method is used, the terminal needs to feed back 3 bits on each PUCCH, K1-1 corresponds to the first bit, K1-4 and 5 correspond to the second bit, and K1-6 and 7 correspond to the third bit; if the second approach described above is used, the terminal needs to feed back 4 bits on each PUCCH, K1 ═ 1 corresponds to the first bit, K1 ═ 4 corresponds to the second bit, K1 ═ 5 and 6 correspond to the third bit, and K1 ═ 7 corresponds to the third bit.

Further, after dividing the feedback timing set into at least one first feedback timing subset in the above manner, reference is made to the aboveThe second embodiment converts the first feedback timing subset into a new first feedback timing subset with granularity of 1 slot. For example, the feedback timing sequence set is {1,4,5,6,7}, when the first feedback timing sequence subsets are divided according to the first manner, the first feedback timing sequence subset is {1}, the second first feedback timing sequence subset is {4,5}, and the third first feedback timing sequence subset is {6,7}, if the feedback timing sequence set is {1,4,5,6,7}, respectively

Converting K1 in the first feedback timing subset to K1' with the basic unit of 1 slot, the new first feedback timing subset corresponding to the first feedback timing subset is {0}, the new first feedback timing subset corresponding to the second first feedback timing subset is {2}, and the new first feedback timing subset corresponding to the third first feedback timing subset is {3 }. The UE may thus determine that the HARQ-ACK feedback codebook carried by the PUCCH transmitted in slot n corresponds to PDSCH candidate transmission positions in slot n, slot n-2 and slot n-3, assuming that 1 candidate PDSCH transmission position exists in slot n, slot n-2 and slot n-3, respectively, and that the base station schedules PDSCH transmission in PDSCH candidate transmission position in slot n-3, corresponding to the value of K1 indicated in DCI being 6, PDSCH transmission being scheduled in PDSCH candidate transmission position in slot n-2, corresponding to the value of K1 indicated in DCI being 5, PDSCH transmission being scheduled in PDSCH candidate transmission position in slot n, corresponding to the value of K1 indicated in DCI being 1, then in case that the UE correctly receives PDSCH transmissions in slot n-3, slot n-2 and 3 slots n, the HARQ-ACK codebook fed back by the terminal on PUCCH in the first half of slot n is 100, the HARQ-ACK codebook fed back on the PUCCH in the second half slot of the slot n is 011.

Assuming that the HARQ feedback timing K1 configured by the base station is an integer multiple of 1/N, e.g., {0,0.5,1,1.5,2,2.5,3,3.5,4 … }, the number of basic units of the feedback timing contained in 1 slot of the predefined or higher-layer configuration is 2, that is, the basic unit of the feedback timing is half of a slot, and N is 2; the first subset of feedback timings may be obtained in several ways:

the first method comprises the following steps: n consecutive values of K1 are N consecutive values of K1 starting from a value of K1 satisfying K1 ═ 1/N + l (l is a non-negative integer), i.e. 0.5 and 1, or 1.5 and 2, or 2.5 and 3 … … are particular, when K1 ═ 0 is an independent value, no value consecutive thereto;

and the second method comprises the following steps: the N consecutive K1 values are N K1 values consecutive from the non-negative integer K1 value, i.e., 0 and 0.5, or 1 and 1.5, or 2 and 2.5 … ….

Likewise, the value of K1 for higher layer signaling configuration may be discontinuous, for example, the configured set of K1 is {0.5,2,2.5,3,3.5}, and the base station configures the terminal to use single carrier transmission, single codeword transmission and TB-based transmission, and 1 PDSCH transmission position is included in one downlink slot, if the first method is used, the terminal needs to feed back 4 bits on each PUCCH, K1 ═ 0.5 corresponds to the first bit, K1 ═ 2 corresponds to the second bit, K1 ═ 2.5 and K1 ═ 3 corresponds to the third bit, and K1 ═ 3.5 corresponds to the fourth bit; if the second approach described above is used, the terminal needs to feed back 3 bits on each PUCCH, K1 ═ 0.5 corresponds to the first bit, K1 ═ 2 and 2.5 correspond to the second bit, and K1 ═ 3 and 3.5 correspond to the third bit.

Further, after the feedback timing set is divided into at least one first feedback timing subset according to the above manner, the first feedback timing subset may be converted into a new first feedback timing subset with granularity of 1 timeslot by referring to the second embodiment. For example, the feedback timing sequence set is {0.5,2,2.5,3,3.5}, when the first feedback timing sequence subset is divided according to the first manner, the first feedback timing sequence subset is {0.5}, the second first feedback timing sequence subset is {2}, the third first feedback timing sequence subset is {2.5,3}, and the fourth first feedback timing sequence subset is {3.5}, if the feedback timing sequence set is {0.5,2.5,3, 3.5}, respectively

Converting K1 in the first subset of feedback timings to K1' with the basic unit of 1 slot, the new first subset of feedback timings corresponding to the first subset of feedback timings is {1}, the new first subset of feedback timings corresponding to the second subset of feedback timings is {2}, and the third feedback timing is {2}The new first subset of feedback timings for the first subset of feedback timings is {3}, and the new first subset of feedback timings for the third subset of feedback timings is {4 }. Therefore, the UE can determine the HARQ-ACK feedback codebook carried by the PUCCH transmitted in the slot n corresponding to the PDSCH candidate transmission positions in the slot n-1, the slot n-2, the slot n-3 and the slot n-4, assuming that 1 candidate PDSCH transmission positions respectively exist in the slot n-1, the slot n-2, the slot n-3 and the slot n-4, and the base station schedules PDSCH transmission in the PDSCH candidate transmission position of the slot n-4, corresponding to the K1 value of 3.5 indicated in the DCI, in the PDSCH candidate transmission position of the slot n-3, corresponding to the K1 value of 3 indicated in the DCI, no PDSCH transmission is scheduled in the slot n-2, PDSCH transmission is scheduled in the PDSCH candidate transmission position of the slot n-1, corresponding to the K1 value of 0.5 indicated in the DCI, and correctly receive the data in the slot n-4, the PDSCH transmission codebook, Under the condition of transmitting 3 PDSCHs in a time slot n-3 and a time slot n-1, a HARQ-ACK codebook fed back by a terminal on a PUCCH in the first half time slot of the time slot n is 1001, and a HARQ-ACK codebook fed back on a PUCCH in the second half time slot of the time slot n is 0100.

In the fourth embodiment of the present invention, assuming that N is the number of basic units of a feedback timing sequence included in 1 slot, and the value of N is predefined in the standard or configured through a high layer signaling, for one PDSCH transmission, N consecutive values of K1 respectively indicate PUCCHs transmitted in different slot units in one uplink slot, so in the process of generating a codebook, first, a set of K1 values corresponding to PUCCHs transmitted in different slot units in one uplink slot may be determined, and then, HARQ-ACK feedback information carried by the PUCCHs may be determined according to the set of K1 values corresponding to PUCCHs transmitted in the different slot units.

Specifically, the determining of the K1 value sets corresponding to the PUCCHs transmitted in different slot units in one uplink slot may be performed in the following manners:

1. a PUCCH transmitted in an xth slot unit of one slot, where x is an integer greater than 0 and less than or equal to N, and a corresponding K1 set satisfies the following condition: mod (K1-1, N) ═ X-1, where K1 represents the number of the basic units. For example, the set of K1 configured by the base station is {1,2,3,4}, where N is 2, and for the PUCCH transmitted in the 1 st slot unit, i.e., the PUCCH in the first half slot, the corresponding set of K1 values is {1,3 }; for the PUCCH transmitted in the 2 nd slot unit, i.e., the PUCCH in the second half slot, the corresponding K1 value set is {2,4 };

2. a PUCCH transmitted in an xth slot unit of one slot, where x is an integer greater than 0 and less than or equal to N, and a corresponding K1 set satisfies the following condition: mod (K1, N) ═ X-1, where K1 represents the number of the basic units. For example, the set of K1 configured by the base station is {1,2,3,4}, where N is 2, and for the PUCCH transmitted in the 1 st slot unit, i.e., the PUCCH in the first half slot, the corresponding set of K1 values is {2,4 }; for the PUCCH transmitted in the 2 nd slot unit, i.e., the PUCCH in the second half slot, the corresponding set of K1 values is {1,3 }.

3. A PUCCH transmitted in an xth slot unit of one slot, where x is an integer greater than 0 and less than or equal to N, and a corresponding K1 set satisfies the following condition: mod (K1 × N-1, N) ═ X-1, where K1 is an integer multiple of the base unit. For example, the set of K1 configured by the base station is {0.5,1,1.5,2}, where N is 2, and for the PUCCH transmitted in the 1 st slot unit, i.e., the PUCCH in the first half slot, the corresponding set of K1 values is {0.5,1.5 }; for the PUCCH transmitted in the 2 nd slot unit, i.e., the PUCCH in the second half slot, the corresponding set of K1 values is {1,2 }.

4. A PUCCH transmitted in an xth slot unit of one slot, where x is an integer greater than 0 and less than or equal to N, and a corresponding K1 set satisfies the following condition: mod (K1 × N, N) ═ X-1, where K1 is an integer multiple of the base unit. For example, the set of K1 configured by the base station is {0.5,1,1.5,2}, where N is 2, and for the PUCCH transmitted in the 1 st slot unit, i.e., the PUCCH in the first half slot, the corresponding set of K1 values is {1,2 }; for the PUCCH transmitted in the 2 nd slot unit, i.e., the PUCCH in the second half slot, the corresponding set of K1 values is {0.5,1.5 }.

In general, the feedback timing set may be divided into N second feedback timing subsets, but in some cases, the feedback timing set may be divided into m (m < N) N second feedback timing subsets, for example, when N is 2, if all the K1 values of the feedback timing set are odd numbers or even numbers.

Further, after the feedback timing set is divided into a plurality of second feedback timing subsets according to the above manner, the second feedback timing subsets may be converted into new second feedback timing subsets with granularity of 1 timeslot by referring to the second embodiment. For example, the feedback timing sequence set is {1,4,5,6,7}, when the second feedback timing sequence subsets are divided according to the above-mentioned manner 1, the first second feedback timing sequence subset is {1,5,7}, and the second feedback timing sequence subset is {4,6}, if the feedback timing sequence sets are divided according to the above-mentioned manner 1, the first and second feedback timing sequence subsets are {1,5,7}, respectively, and the second feedback timing sequence subset is {4,6}, respectively

Converting K1 in the second subset of feedback timings to K1' with the basic unit of 1 slot, the new second subset of feedback timings corresponding to the first second subset of feedback timings is {0,2,3}, and the new second subset of feedback timings corresponding to the second subset of feedback timings is {2,3 }. The UE may thus determine that the HARQ-ACK feedback codebook carried by one PUCCH (first half slot) transmitted in slot n corresponds to PDSCH candidate transmission positions in slot n-2 and slot n-3, the HARQ-ACK feedback codebook carried by another PUCCH (second half slot) transmitted in slot n corresponds to PDSCH candidate transmission positions in slot n, slot n-2 and slot n-3, assuming that there are 1 PDSCH candidate transmission positions in slot n, slot n-2 and slot n-3, respectively, and that the base station scheduled PDSCH transmissions in the PDSCH candidate transmission position of slot n-3, corresponding to the K1 value indicated in DCI of 6, in the PDSCH candidate transmission position of slot n-2, corresponding to the K1 value indicated in DCI of 5, in the PDSCH candidate transmission position of slot n, if the value of K1 indicated in the corresponding DCI is 1, then when the UE correctly receives the transmission of 3 PDSCHs in the slot n-3, the slot n-2, and the slot n, the HARQ-ACK codebook fed back by the terminal on the PUCCH in the first half of the slot n is 10, and the HARQ-ACK codebook fed back on the PUCCH in the second half of the slot n is 011.

For another example, the feedback timing sequence set is {0.5,2,2.5,3,3.5}, and the second feedback timing sequence subset is divided according to the above-mentioned 3 rd modeThe first and second subsets of feedback timings are {0.5,2.5,3.5}, and the second and second subsets of feedback timings are {2,3}, if they are as follows

Converting K1 in the second subset of feedback timings to K1' with the basic unit of 1 slot, the new second subset of feedback timings corresponding to the first second subset of feedback timings is {1,3,4}, and the new second subset of feedback timings corresponding to the second subset of feedback timings is {2,3 }. The UE can thus determine that the HARQ-ACK feedback codebook carried by one PUCCH (first half slot) transmitted in slot n corresponds to slot n-4, slot n-3 and PDSCH candidate transmission position in slot n-1, the HARQ-ACK feedback codebook carried by another PUCCH (second half slot) transmitted in slot n corresponds to PDSCH candidate transmission position in slot n-2 and slot n-3, assuming that there are 1 candidate PDSCH transmission positions in slot n-1, slot n-2, slot n-3 and slot n-4, respectively, and that the base station scheduled PDSCH transmission in PDSCH candidate transmission position in slot n-4, corresponding to the K1 value indicated in DCI of 3.5, the base station scheduled PDSCH transmission in PDSCH candidate transmission position in slot n-3, corresponding to the K1 value indicated in DCI of 3, PDSCH transmission is scheduled in a PDSCH candidate transmission position of a time slot n-2, the value of K1 indicated in corresponding DCI is 2, PDSCH transmission is scheduled in a PDSCH candidate transmission position of a time slot n-1, and the value of K1 indicated in corresponding DCI is 0.5, so that under the condition that UE correctly receives 4 PDSCH transmissions in a time slot n-4, a time slot n-3, a time slot n-2 and a time slot n-1, the HARQ-ACK codebook fed back by the terminal on a PUCCH in the first half time slot of the time slot n is 101, and the HARQ-ACK codebook fed back on a PUCCH in the second half time slot of the time slot n is 11.

Referring to fig. 5, fig. 5 is a structural diagram of a terminal according to a fifth embodiment of the present invention, as shown in fig. 5, a terminal 500 includes:

an obtaining module 501, configured to obtain a feedback timing sequence set, where a basic unit of a feedback timing sequence in the feedback timing sequence set is less than 1 timeslot;

a feedback module 502, configured to generate HARQ-ACK feedback information according to the feedback timing sequence set and feed back the HARQ-ACK feedback information in an uplink timeslot.

Optionally, the feedback module 502 includes:

Optionally, the timeslot determining submodule includes:

Optionally, the first unit includes:

a first calculating subunit, configured to, when the feedback timings K1 in the feedback timing set represent the number of the basic units, respectivelyCalculating a new feedback timing K1 'for each feedback timing K1 in the set of feedback timings and deleting duplicate K1' values to obtain the set of new feedback timings, wherein,

or,

or,

or,

or,

Further, when the K1 value is an integer multiple of the basic unit, the K1 values belonging to the same first feedback timing subset satisfy the following condition: k1 is greater than or equal to x₂And is less than x₂+1，x₂Different first feedback time sequence subsets correspond to different x for non-negative integers₂A value;

or,

wherein x is an integer greater than 0 and less than or equal to N.

Optionally, the feedback module 502 includes:

It should be noted that, in this embodiment, the terminal 500 may be any implementation manner of the method embodiment in the present invention, and any implementation manner of the terminal in the method embodiment in the present invention may be implemented by the terminal 500 in this embodiment, and achieve the same beneficial effects, and details are not described here again.

Referring to fig. 6, fig. 6 is a structural diagram of another terminal according to a sixth embodiment of the present invention, and as shown in fig. 6, the terminal includes: a transceiver 610, a memory 620, a processor 600 and a computer program stored on the memory 620 and executable on the processor 600, wherein the processor 600 implements the following steps when executing the computer program:

The transceiver 610 may be used for receiving and transmitting data under the control of the processor 600.

In FIG. 6, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 600 and memory represented by memory 620. 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 610 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.

The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 600 in performing operations.

It should be noted that the memory 620 is not limited to be on the terminal, and the memory 620 and the processor 600 may be separated in different geographical locations.

Optionally, the processor 600 further implements the following steps when executing the computer program:

or,

or,

or,

or,

Optionally, when the K1 value is an integer multiple of the basic unit, the K1 values belonging to the same first feedback timing subset satisfy the following condition: k1 is greater thanIs equal to x₂And is less than x₂+1，x₂Different first feedback time sequence subsets correspond to different x for non-negative integers₂A value;

or,

wherein x is an integer greater than 0 and less than or equal to N.

It should be noted that, in this embodiment, the terminal may be a terminal in any implementation manner in the method embodiment of the present invention, and any implementation manner of the terminal in the method embodiment of the present invention may be implemented by the terminal in this embodiment, so as to achieve the same beneficial effects, and details are not described here again.

The embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by the processor 600, implements the steps in the HARQ-ACK feedback method provided in the embodiment of the present invention.

In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the processing method of the information data block according to various embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A HARQ-ACK feedback method is applied to a terminal and is characterized by comprising the following steps:

generating HARQ-ACK feedback information according to the feedback time sequence set and feeding back the HARQ-ACK feedback information in an uplink time slot;

feeding back the HARQ-ACK feedback information on a PUCCH in the uplink time slot aiming at the data received at the candidate downlink transmission position;

2. The method of claim 1, wherein the step of converting the set of feedback timings into a new set of feedback timings with a basic unit of 1 slot of feedback timings comprises:

or,

or,

or,

3. The method of claim 1, wherein a basic unit of the feedback timing in the feedback timing set is agreed by a protocol or configured through higher layer signaling.

4. The method of claim 1, wherein the number of feedback timings K1 in the first subset of feedback timings is equal to or less than N, wherein N is the number of basic units of feedback timings contained in 1 time slot, and wherein N is an integer greater than 1.

5. The method of claim 4, wherein the values of feedback timing K1 in the set of feedback timings are arranged in order of magnitude, and the value K1 represents the number of the basic units,

or,

6. The method according to claim 4 or 5, characterized in that when a value of K1 indicates the number of basic units, the K1 values belonging to the same first feedback timing subset satisfy the following condition: k1 is greater than or equal to x₁N is less than (x)₁+1)N，x₁Different first feedback time sequence subsets correspond to different x for non-negative integers₁A value;

or,

7. The method of claim 4, wherein the feedback timing K1 values in the set of feedback timings are arranged in order of magnitude, and the K1 value is an integer multiple of the base unit,

or,

8. The method according to claim 4 or 7, wherein when the K1 value is an integer multiple of the basic unit, K1 values belonging to the same first feedback timing subset satisfy the following condition: k1 is greater than or equal to x₂And is less than x₂+1，x₂Different first feedback time sequence subsets correspond to different x for non-negative integers₂A value;

or,

9. The method according to claim 1, wherein when a feedback timing K1 in the feedback timing set represents the number of the basic units,

wherein x is an integer greater than 0 and less than or equal to N.

10. The method according to claim 1, wherein when the feedback timing K1 in the feedback timing set is an integer multiple of the basic unit,

wherein x is an integer greater than 0 and less than or equal to N.

11. The method of claim 1, wherein the step of generating HARQ-ACK feedback information according to the set of feedback timings and feeding back the HARQ-ACK feedback information in an uplink time slot comprises:

12. A terminal, comprising:

a feedback module, configured to generate HARQ-ACK feedback information according to the feedback timing sequence set and feed back the HARQ-ACK feedback information in an uplink timeslot;

the feedback module includes:

a first feedback sub-module, configured to feed back, on the PUCCH in the uplink slot, the HARQ-ACK feedback information for the data received at the candidate downlink transmission position;

the time slot determination submodule includes:

13. The terminal of claim 12, wherein the first unit comprises:

a first calculating subunit, configured to, when the feedback timings K1 in the feedback timing set represent the number of the basic units, calculate a new feedback timing K1' and delete the duplicated K1 for each feedback timing K1 in the feedback timing set' a value, resulting in the new set of feedback timings, wherein,

or,

or,

or,

14. The terminal of claim 12, wherein a basic unit of the feedback timing in the feedback timing set is agreed by a protocol or configured through higher layer signaling.

15. The terminal of claim 12, wherein the number of feedback sequences K1 in the first subset of feedback sequences is equal to or less than N, wherein N is the number of basic units of feedback sequences contained in 1 time slot, and wherein N is an integer greater than 1.

16. The terminal of claim 15, wherein the values of feedback timing K1 in the set of feedback timings are arranged in order of magnitude, and wherein the value K1 represents the number of the basic units,

or,

17. The terminal of claim 15, wherein the values of feedback timing K1 in the set of feedback timings are arranged in order of magnitude, and the value of K1 is an integer multiple of the base unit,

or,

18. The terminal of claim 12, wherein when a feedback timing K1 in the set of feedback timings represents the number of basic units,

wherein x is an integer greater than 0 and less than or equal to N.

19. The terminal of claim 12, wherein when a feedback timing K1 in the set of feedback timings is an integer multiple of the base unit,

wherein x is an integer greater than 0 and less than or equal to N.

20. The terminal of claim 12, wherein the feedback module comprises:

21. A terminal, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the following steps when executing the computer program:

the processor, when executing the computer program, further implements the steps of:

22. The terminal of claim 21, wherein the processor, when executing the computer program, further performs the steps of:

when the feedback timings K1 in the feedback timing set represent the number of the basic units, the feedback timings are respectively corresponding to the feedback timing setA new feedback timing sequence K1 'is calculated for each feedback timing sequence K1, and the repeated K1' values are deleted to obtain the new feedback timing sequence set, wherein,

or,

or,

or,

23. The terminal of claim 21, wherein a basic unit of the feedback timing in the feedback timing set is agreed by a protocol or configured through higher layer signaling.

24. The terminal of claim 21, wherein the number of feedback sequences K1 in the first subset of feedback sequences is equal to or less than N, wherein N is the number of basic units of feedback sequences contained in 1 time slot, and wherein N is an integer greater than 1.

25. The terminal of claim 24, wherein the values of feedback timing K1 in the set of feedback timings are arranged in order of magnitude, and wherein the value K1 represents the number of the basic units,

or,

26. The terminal of claim 24, wherein the values of feedback timing K1 in the set of feedback timings are arranged in order of magnitude, and the value of K1 is an integer multiple of the base unit,

or,

27. The terminal of claim 21, wherein when a feedback timing K1 in the set of feedback timings represents the number of basic units,

wherein x is an integer greater than 0 and less than or equal to N.

28. The terminal of claim 21, wherein when a feedback timing K1 in the set of feedback timings is an integer multiple of the base unit,

wherein x is an integer greater than 0 and less than or equal to N.

29. The terminal of claim 21, wherein the processor, when executing the computer program, further performs the steps of:

30. A computer readable storage medium having a computer program stored thereon, which, when being executed by a processor, carries out the steps of the HARQ-ACK feedback method according to any of the claims 1 to 11.