CN110166187B

CN110166187B - HARQ-ACK codebook determination method, user terminal and base station

Info

Publication number: CN110166187B
Application number: CN201810150981.6A
Authority: CN
Inventors: 高雪娟
Original assignee: 大唐移动通信设备有限公司
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2018-02-13
Filing date: 2018-02-13
Publication date: 2022-04-12
Anticipated expiration: 2038-02-13
Also published as: CN110166187A

Abstract

The embodiment of the invention provides a hybrid automatic repeat request acknowledgement HARQ-ACK codebook determining method, a user terminal and a base station. The method is applied to the user terminal and comprises the following steps: acquiring a first value set; the first value set is a subset of a second value set, and the second value set is a full set of scheduling timing relation values from a preset Physical Downlink Control Channel (PDCCH) to a Physical Downlink Shared Channel (PDSCH); and determining the HARQ-ACK codebook according to the first value set. The embodiment of the invention can improve the transmission efficiency and performance of the HARQ-ACK codebook.

Description

HARQ-ACK codebook determination method, user terminal and base station

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method for determining a Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) codebook, a user terminal, and a base station.

Background

With the development of mobile communication service demand, various organizations such as International Telecommunication Union (ITU) have started to research New wireless communication systems (i.e., 5G NR, 5Generation New RAT). The flexible timing relationship is supported in the 5G NR, and for the Scheduling timing relationship of a Physical Downlink Shared CHannel (PDSCH), a Physical Downlink Control CHannel (PDCCH) carrying Scheduling information of the Scheduling relationship indicates a Scheduling timing relationship (i.e., Scheduling timing) from the PDCCH to the PDSCH, and indicates a feedback timing relationship (i.e., HARQ-ACK timing) from the PDSCH to its corresponding HARQ-ACK. Specifically, the time domain resource allocation indication field in the Downlink Control Information (DCI) format used by the PDCCH indicates the time slot offset K0 between the time slot in which the PDSCH is located and the time slot in which the DCI is located; the PDSCH to HARQ-ACK feedback timing indication field in the DCI format indicates the number of slots K1 between the end of the PDSCH and the beginning of the HARQ-ACK, as shown in fig. 1 below. The maximum set of K0 is {0, 1, 2, 3, 4, 5, 8, 10, 16, 20, 32 }.

Currently, 5G NR supports two HARQ-ACK codebook generation modes, namely semi-static (semi-static) and dynamic (dynamic). When the user terminal determines the HARQ-ACK codebook in a semi-static manner, the user terminal determines the HARQ-ACK codebook according to the maximum set of K0, which may cause more redundant bits in the generated HARQ-ACK codebook, thereby seriously affecting the transmission efficiency and performance of HARQ-ACK.

Disclosure of Invention

The embodiment of the invention provides a method for determining a HARQ-ACK codebook, a user terminal and a base station, which are used for solving the problem that more redundant bits exist in the HARQ-ACK codebook generated by the user terminal.

The embodiment of the invention provides a method for determining a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook, which is applied to a user terminal and comprises the following steps:

acquiring a first value set; the first value set is a subset of a second value set, and the second value set is a full set of scheduling timing relation values from a preset Physical Downlink Control Channel (PDCCH) to a Physical Downlink Shared Channel (PDSCH);

and determining the HARQ-ACK codebook according to the first value set.

Optionally, the obtaining the first value set includes:

and determining the first value set according to the baseband parameter numerology used by the user terminal.

Optionally, the determining the first value set according to numerology used by the user terminal includes:

determining a value set corresponding to the numerology used by the user terminal as the first value set based on a corresponding relationship between a preset numerology and the value set; and the value set corresponding to any numerology is a subset of the second value set.

determining the numerology used by the user terminal or a value corresponding to the numerology with the number not less than the numerology used by the user terminal based on a preset corresponding relationship between numerology and the value; wherein, the value corresponding to any numerology is at least one value in the second value set;

determining a first value set; wherein, the first value set includes the rest values or numbers except the value corresponding to the numerology used by the user terminal in the second value set, and the rest values except the value corresponding to the numerology used by the user terminal are not less than the rest values except the value corresponding to the numerology used by the user terminal;

alternatively, the first and second electrodes may be,

determining a value corresponding to the numerology used by the user terminal based on a preset corresponding relationship between the numerology and the value; wherein, the value corresponding to any numerology is at least one value in the second value set;

determining a first value set; wherein the first value set includes a value that is not more than or less than a value corresponding to the numerology used by the user terminal in the second value set.

determining a second value according to a bandwidth part BWP handover time and numerology used by the user terminal; wherein the second value is one value in the second value set;

determining the first value set according to the second value; the first value set comprises values which are not more than or less than the second value in the second value set.

Optionally, the determining a second value according to the BWP handover time and the numerology used by the ue includes:

determining slot number Y according to BWP switching time and numerology used by the user terminal; wherein Y is an integer greater than or equal to 1;

determining a basic value set corresponding to the numerology used by the user terminal based on a preset corresponding relationship between the numerology and the basic value set; wherein, the basic value set corresponding to any numerology includes values that do not support BWP handover in the second value set under any numerology;

respectively calculating the sum of each value in a basic value set corresponding to numerology used by the user terminal and Y, and determining the maximum sum of the calculated sum;

and determining the value with the minimum value in the values which are not less than the determined sum value in the second value set as the second value.

Optionally, the obtaining the first value set includes:

receiving a configuration signaling sent by a base station;

and determining the first value set according to the configuration signaling.

Optionally, the configuration signaling carries each value in the first value set or an index corresponding to the first value set;

the determining the first value set according to the configuration signaling includes:

and determining a value set formed by each value in the configuration signaling as a first value set, or determining the first value set corresponding to an index in the configuration signaling.

Optionally, the configuration signaling carries a third value; wherein the third value is one value in the second value set;

determining the first value set according to the configuration signaling; and the first value set comprises values which are not more than or less than the third value in the second value set.

Optionally, the obtaining the first value set includes:

determining a first value set; the first value set comprises M values with the minimum values in the second value set, M is smaller than the total number of the values in the second value set, and M is an integer greater than or equal to 1.

Optionally, the determining the HARQ-ACK codebook according to the first value set includes:

when the user terminal does not support BWP handover on one carrier:

determining an HARQ-ACK codebook according to the first value set;

when the user terminal supports BWP handover on one carrier, for the one carrier:

determining an HARQ-ACK codebook according to the first value set, and supplementing an A-bit HARQ-ACK on the basis of the determined HARQ-ACK codebook, wherein A is an integer greater than or equal to 1;

or adding N fourth values to the first value set; the fourth value is a value which is not included in the first value set in the second value set, and N is an integer greater than or equal to 1; and determining the HARQ-ACK codebook corresponding to the carrier according to the first value set added with the fourth value.

Optionally, a is a preset number of bits; alternatively, the first and second electrodes may be,

when a PDCCH (physical Downlink control channel) scheduled for BWP (BWP) switching uses a 1 transport block TB to transmit a PDSCH, A is 1; alternatively, the first and second electrodes may be,

a ═ cxb; b is the number of PDCCH monitoring sessions included in a slot range determined by the user terminal according to BWP switching; the transmission mode used by the user terminal is 1TB or 2TB, and when HARQ-ACK space combination is carried out, C is 1; or when the transmission mode used by the user terminal is 2TB and HARQ-ACK space combination is not performed, C is 2; or when the carrier transmission mode used by the user terminal is based on the transmission of the code block group CBG, C is the preset maximum CBG number.

The embodiment of the invention also provides a method for determining the HARQ-ACK codebook of the hybrid automatic repeat request acknowledgement, which is applied to a base station and comprises the following steps:

and determining the bit number of the HARQ-ACK codebook sent by the user terminal according to the first value set.

Optionally, the obtaining the first value set includes:

alternatively, the first and second electrodes may be,

Optionally, the method further includes:

sending a configuration signaling to the user terminal; wherein the configuration signaling is used for notifying the first value set.

Optionally, the configuration signaling indicates each value in the first value set or indicates an index corresponding to the first value set.

Optionally, the configuration signaling carries a third value, where the third value is one of the second value set, and the third value is used to determine a set formed by values not greater than or less than the third value in the second value set as the first value set.

Optionally, the obtaining the first value set includes:

Optionally, the determining the bit number of the HARQ-ACK codebook sent by the user equipment according to the first value set includes:

when the user terminal does not support BWP handover on one carrier:

determining the bit number of the HARQ-ACK codebook according to the first value set;

determining the bit number of an HARQ-ACK codebook according to the first value set, and determining that the user terminal supplements A-bit HARQ-ACK on the basis of the determined HARQ-ACK codebook, wherein A is an integer greater than or equal to 1;

or adding N fourth values to the first value set; the fourth value is a value which is not included in the first value set in the second value set, and N is an integer greater than or equal to 1; and determining the bit number of the HARQ-ACK codebook according to the first value set added with the fourth value.

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

the acquisition module is used for acquiring a first value set; the first value set is a subset of a second value set, and the second value set is a full set of scheduling timing relation values from a preset Physical Downlink Control Channel (PDCCH) to a Physical Downlink Shared Channel (PDSCH);

and the determining module is used for determining a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook according to the first value set.

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

and the determining module is used for determining the bit number of the HARQ-ACK codebook determined by the HARQ-ACK codebook sent by the user terminal according to the first value set.

An embodiment of the present invention further provides a user terminal, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor,

the transceiver is used for acquiring a first value set; the first value set is a subset of a second value set, and the second value set is a full set of scheduling timing relation values from a preset Physical Downlink Control Channel (PDCCH) to a Physical Downlink Shared Channel (PDSCH);

the processor is configured to determine an HARQ-ACK codebook according to the first value set;

alternatively, the first and second electrodes may be,

the processor is used for acquiring a first value set; the first value set is a subset of a second value set, and the second value set is a full set of scheduling timing relation values from a preset Physical Downlink Control Channel (PDCCH) to a Physical Downlink Shared Channel (PDSCH); and determining the HARQ-ACK codebook according to the first value set.

Optionally, the transceiver is further configured to determine the first value set according to a baseband parameter numerology used by the user terminal;

alternatively, the first and second electrodes may be,

the processor is further configured to determine the first value set according to a baseband parameter numerology used by the user terminal.

Optionally, the transceiver is further configured to determine, as the first value set, a value set corresponding to the numerology used by the user terminal based on a correspondence between a preset numerology and the value set; wherein, the value set corresponding to any numerology is a subset of the second value set;

alternatively, the first and second electrodes may be,

the processor is further configured to determine, as the first value set, a value set corresponding to numerology used by the user terminal based on a correspondence between preset numerology and the value set; and the value set corresponding to any numerology is a subset of the second value set.

Optionally, the transceiver is further configured to determine, based on a preset correspondence between numerology and a value, numerology used by the user terminal or a value whose number is not less than the numerology used by the user terminal; wherein, the value corresponding to any numerology is at least one value in the second value set; determining a first value set; wherein, the first value set includes the rest values or numbers except the value corresponding to the numerology used by the user terminal in the second value set, and the rest values except the value corresponding to the numerology used by the user terminal are not less than the rest values except the value corresponding to the numerology used by the user terminal;

alternatively, the first and second electrodes may be,

the transceiver is further configured to determine a value corresponding to the numerology used by the user terminal based on a correspondence between a preset numerology and the value; wherein, the value corresponding to any numerology is at least one value in the second value set; determining a first value set; wherein, the first value set includes a value that is not more than or less than a value corresponding to the numerology used by the user terminal in the second value set;

alternatively, the first and second electrodes may be,

the processor is further configured to determine, based on a preset correspondence between numerology and a value, a numerology used by the user terminal or a value corresponding to the numerology of which the number is not less than the numerology used by the user terminal; wherein, the value corresponding to any numerology is at least one value in the second value set; determining a first value set; wherein, the first value set includes the rest values or numbers except the value corresponding to the numerology used by the user terminal in the second value set, and the rest values except the value corresponding to the numerology used by the user terminal are not less than the rest values except the value corresponding to the numerology used by the user terminal;

alternatively, the first and second electrodes may be,

the processor is further configured to determine, based on a preset correspondence between numerology and a value, a value corresponding to numerology used by the user terminal; wherein, the value corresponding to any numerology is at least one value in the second value set; determining a first value set; wherein the first value set includes a value that is not more than or less than a value corresponding to the numerology used by the user terminal in the second value set.

Optionally, the transceiver is further configured to determine a second value according to a bandwidth part BWP handover time and numerology used by the user terminal; wherein the second value is one value in the second value set; determining the first value set according to the second value; the first value set comprises values which are not more than or less than the second value in the second value set;

alternatively, the first and second electrodes may be,

the processor is further configured to determine a second value according to a bandwidth part BWP handover time and numerology used by the user terminal; wherein the second value is one value in the second value set; determining the first value set according to the second value; the first value set comprises values which are not more than or less than the second value in the second value set.

Optionally, the transceiver is further configured to determine slot number Y according to BWP handover time and numerology used by the user terminal; wherein Y is an integer greater than or equal to 1; determining a basic value set corresponding to the numerology used by the user terminal based on a preset corresponding relationship between the numerology and the basic value set; wherein, the basic value set corresponding to any numerology includes values that do not support BWP handover in the second value set under any numerology; respectively calculating the sum of each value in a basic value set corresponding to numerology used by the user terminal and Y, and determining the maximum sum of the calculated sum; determining the value with the minimum value in the values which are not less than the determined sum value in the second value set as a second value;

alternatively, the first and second electrodes may be,

the processor is further configured to determine slot number Y according to BWP handover time and numerology used by the user terminal; wherein Y is an integer greater than or equal to 1; determining a basic value set corresponding to the numerology used by the user terminal based on a preset corresponding relationship between the numerology and the basic value set; wherein, the basic value set corresponding to any numerology includes values that do not support BWP handover in the second value set under any numerology; respectively calculating the sum of each value in a basic value set corresponding to numerology used by the user terminal and Y, and determining the maximum sum of the calculated sum; and determining the value with the minimum value in the values which are not less than the determined sum value in the second value set as the second value.

Optionally, the transceiver is further configured to receive a configuration signaling sent by a base station; determining the first value set according to the configuration signaling;

alternatively, the first and second electrodes may be,

the transceiver is further configured to receive a configuration signaling sent by a base station;

the processor is further configured to determine the first value set according to the configuration signaling.

the transceiver is further configured to determine a value set formed by each value in the configuration signaling as a first value set, or determine the first value set corresponding to an index in the configuration signaling;

alternatively, the first and second electrodes may be,

the processor is further configured to determine a value set formed by each value in the configuration signaling as a first value set, or determine the first value set corresponding to an index in the configuration signaling.

the transceiver is further configured to determine a first value set according to the configuration signaling; the first value set comprises values which are not more than or less than the third value in the second value set;

alternatively, the first and second electrodes may be,

the processor is further configured to determine a first value set according to the configuration signaling; and the first value set comprises values which are not more than or less than the third value in the second value set.

Optionally, the transceiver is further configured to determine a first value set; the first value set comprises M values with the minimum values in the second value set, M is smaller than the total number of the values in the second value set, and M is an integer greater than or equal to 1;

alternatively, the first and second electrodes may be,

the processor is further configured to determine a first set of values; the first value set comprises M values with the minimum values in the second value set, M is smaller than the total number of the values in the second value set, and M is an integer greater than or equal to 1.

Optionally, the processor is further configured to, when the user equipment does not support BWP handover on one carrier: determining an HARQ-ACK codebook according to the first value set; when the user terminal supports BWP handover on one carrier, for the one carrier: determining an HARQ-ACK codebook according to the first value set, and supplementing an A-bit HARQ-ACK on the basis of the determined HARQ-ACK codebook, wherein A is an integer greater than or equal to 1; or adding N fourth values to the first value set; the fourth value is a value which is not included in the first value set in the second value set, and N is an integer greater than or equal to 1; and determining the HARQ-ACK codebook corresponding to the carrier according to the first value set added with the fourth value.

An embodiment of the present invention further provides a base station, including: a memory, a processor, and a computer program stored on the memory and executable on the processor,

the processor is used for acquiring a first value set; the first value set is a subset of a second value set, and the second value set is a full set of scheduling timing relation values from a preset Physical Downlink Control Channel (PDCCH) to a Physical Downlink Shared Channel (PDSCH); and determining the bit number of the HARQ-ACK codebook sent by the user terminal according to the first value set.

Optionally, the processor is further configured to determine the first value set according to a baseband parameter numerology used by the user terminal.

Optionally, the processor is further configured to determine, as the first value set, a value set corresponding to the numerology used by the user terminal based on a preset correspondence between the numerology and the value set; and the value set corresponding to any numerology is a subset of the second value set.

Optionally, the processor is further configured to determine, based on a preset correspondence between numerology and a value, numerology used by the user terminal or a value whose number is not less than the numerology used by the user terminal; wherein, the value corresponding to any numerology is at least one value in the second value set; determining a first value set; wherein, the first value set includes the rest values or numbers except the value corresponding to the numerology used by the user terminal in the second value set, and the rest values except the value corresponding to the numerology used by the user terminal are not less than the rest values except the value corresponding to the numerology used by the user terminal;

alternatively, the first and second electrodes may be,

Optionally, the processor is further configured to determine a second value according to a bandwidth part BWP handover time and numerology used by the user terminal; wherein the second value is one value in the second value set; determining the first value set according to the second value; the first value set comprises values which are not more than or less than the second value in the second value set.

Optionally, the processor is further configured to determine slot number Y according to BWP handover time and numerology used by the user terminal; wherein Y is an integer greater than or equal to 1; determining a basic value set corresponding to the numerology used by the user terminal based on a preset corresponding relationship between the numerology and the basic value set; wherein, the basic value set corresponding to any numerology includes values that do not support BWP handover in the second value set under any numerology; respectively calculating the sum of each value in a basic value set corresponding to numerology used by the user terminal and Y, and determining the maximum sum of the calculated sum; and determining the value with the minimum value in the values which are not less than the determined sum value in the second value set as the second value.

Optionally, the base station further includes a transceiver;

the transceiver is configured to send a configuration signaling to the user terminal; wherein the configuration signaling is used for notifying the first value set.

Optionally, the processor is further configured to determine a first value set; the first value set comprises M values with the minimum values in the second value set, M is smaller than the total number of the values in the second value set, and M is an integer greater than or equal to 1.

Optionally, the processor is further configured to, when the user equipment does not support BWP handover on one carrier: determining the bit number of the HARQ-ACK codebook according to the first value set; when the user terminal supports BWP handover on one carrier, for the one carrier: determining the bit number of an HARQ-ACK codebook according to the first value set, and determining that the user terminal supplements A-bit HARQ-ACK on the basis of the determined HARQ-ACK codebook, wherein A is an integer greater than or equal to 1; or adding N fourth values to the first value set; the fourth value is a value which is not included in the first value set in the second value set, and N is an integer greater than or equal to 1; and determining the bit number of the HARQ-ACK codebook according to the first value set added with the fourth value.

In the embodiment of the invention, the user terminal obtains a first value set formed by partial values in a full set (namely a second value set) of K0 values, and determines the HARQ-ACK codebook according to the first value set. Therefore, compared with the situation that the HARQ-ACK codebook is determined by using the full set of K0 values in the prior art, the number of the values in the value set according to which the user terminal determines the HARQ-ACK codebook is reduced, and the number of the redundant bits in the HARQ-ACK codebook determined by the user terminal is also reduced, so that the transmission efficiency and the performance of the HARQ-ACK codebook can be improved.

Drawings

Fig. 1 is a schematic diagram of the relation of K0 and K1 indicated by DCI;

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

FIG. 3 is a diagram illustrating a PDCCH monitoring occasion corresponding to slot n +9 determined according to scheduling timing (K1) and HARQ-ACK timing (K0);

fig. 4 is a flowchart of another HARQ-ACK codebook determination method according to an embodiment of the present invention;

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

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

fig. 7 is a schematic structural diagram of another ue according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of another base station according to an 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. 2, a flowchart of a HARQ-ACK codebook determination method according to an embodiment of the present invention is shown. As shown in fig. 2, the method is applied to a user terminal, and includes the following steps:

step 201, acquiring a first value set; the first value set is a subset of a second value set, and the second value set is a full set of preset Scheduling timing relationship (K0) values from the PDCCH to the PDSCH.

Step 202, determining a HARQ-ACK codebook according to the first value set.

The second value set may be predefined or configured through higher layer signaling, and the second value set may be {0, 1, 2, 3, 4, 5, 8, 10, 16, 20, 32 }. Of course, the values in the second value set are not limited to the above listed situations, and may be determined according to actual situations, which is not limited in this embodiment of the present invention. In order to facilitate understanding of the present disclosure by those skilled in the art, the following embodiments will be described by taking a case where the second value set is {0, 1, 2, 3, 4, 5, 8, 10, 16, 20, 32 }.

In the embodiment of the present invention, the first value set is specifically a proper subset of the second value set, that is, the first value set only includes a part of values in the second value set.

It should be noted that the HARQ-ACK codebook is a HARQ-ACK feedback sequence generated for downlink transmission performing HARQ-ACK feedback on the same time domain position or uplink channel. In the embodiment of the invention, the user terminal is specifically configured to use a semi-static HARQ-ACK codebook, and the user terminal adopts a semi-static mode to generate the HARQ-ACK codebook. In step 202, the ue determines a Physical Downlink Control Channel (PDCCH) detection opportunity set (i.e. PDCCH monitoring interference set) for performing HARQ-ACK feedback at the same time domain location or on the uplink channel according to at least Scheduling timing and HARQ-ACK timing, and determines a HARQ-ACK codebook according to the determined PDCCH monitoring interference set, or the ue determines a downlink transmission set for performing HARQ-ACK feedback at the same time domain location or on the uplink channel according to at least Scheduling timing and HARQ-ACK timing, and determines a HARQ-ACK codebook according to the determined downlink transmission set. The downlink transmission set determined by the user terminal is as follows: a transmission set including a PDSCH and a PDCCH indicating a release of a downlink Semi-Persistent Scheduling (SPS) resource. The user terminal may send the determined HARQ-ACK codebook to the base station.

Optionally, obtaining the first value set includes:

and determining the first value set according to a baseband parameter (numerology) used by the user terminal.

In this embodiment, the user terminal may obtain a baseband parameter currently used by itself, and determine the first value set relatively conveniently according to the baseband parameter currently used by itself.

Optionally, determining the first value set according to numerology used by the user terminal includes:

determining a value set corresponding to the numerology used by the user terminal as a first value set based on a corresponding relation between the preset numerology and the value set; and the value set corresponding to any numerology is a subset of the second value set.

The correspondence between numerology and the value set (for convenience of distinguishing from the remaining correspondence, the correspondence is referred to as correspondence 1 in the following description) may be predetermined or configured.

Specifically, in the corresponding relationship 1, the value sets corresponding to different numerologies may be the same value set, for example, each numerology is agreed to correspond to {0, 1, 2, 3}, so that the first value set determined by the user terminal is {0, 1, 2, 3 }.

Of course, as shown in table 1 or table 2 below, in correspondence relationship 1, value sets corresponding to different numerologies may also be different from each other. Of course, without being limited to the definition of the value sets shown in the following table, each numerology may select some values in the second value set {0, 1, 2, 3, 4, 5, 8, 10, 16, 20, 32} as the first value set corresponding to the numerology.

TABLE 1

TABLE 2

Wherein u in tables 1 and 2 is a numerology number, and the numerology numbers are different from each other. Assuming that the number u of the numerology used by the ue is 0, according to table 1, the value set corresponding to the numerology used by the ue is {0, 1, 2, 3}, so that the ue can determine {0, 1, 2, 3} as a first value set; it is easy to see that the value in the first value set determined by the user terminal at this time is smaller, and if the scheduling timing required for BWP handover is not less than 4, the first value set does not include the value used for bandwidth part (BWP) handover under the numerology numbered 0 (i.e., the value supporting BWP handover); for another example, according to table 2 above, the value set corresponding to the numerology used by the user terminal is {0, 1, 2, 4}, so that the user terminal may determine {0, 1, 2, 3, 4} as the first value set; it is easy to see that the value in the first value set determined by the user terminal at this time includes 4, and if scheduling timing required for BWP handover is not less than 4, the first value set includes a value used for BWP handover in numerology with number 0, but the scheduling timing range is also a relatively small range because all values greater than 4 in the second value set are not included, thereby ensuring that redundancy in the HARQ-ACK codebook determined according to the scheduling timing is relatively small.

It can be seen that, in this embodiment, according to the preset corresponding relationship 1, the user terminal may directly take the value set corresponding to the numerology used by the user terminal as the first value set, so that the user terminal can very conveniently determine the first value set.

mode S1:

determining the numerology used by the user terminal or the value corresponding to the numerology with the number not less than the numerology used by the user terminal based on the preset corresponding relationship between the numerology and the value; and the value corresponding to any numerology is at least one value in the second value set.

Determining a first value set; and the first value set comprises the rest values or the numbers except the value corresponding to the numerology used by the user terminal in the second value set, wherein the rest values or the numbers except the value corresponding to the numerology used by the user terminal are not less than the rest values except the value corresponding to the numerology used by the user terminal.

Mode S2:

determining a first value set; and the first value set comprises values which are not more than or less than the values corresponding to the numerology used by the user terminal in the second value set.

The correspondence between numerology and the value (for convenience of distinguishing from the rest of the correspondence, the correspondence will be referred to as correspondence 2 in the following description) may be predetermined or configured. It should be noted that, in correspondence 2, the value corresponding to any numerology may include each value or at least one value supporting BWP handover in the numerology.

When the mode S1 is adopted, the correspondence relation 2 is specifically shown in table 3 or table 4 below. Of course, without being limited to the definition of the value sets shown in the following table, each numerology may select some values in the second value set {0, 1, 2, 3, 4, 5, 8, 10, 16, 20, 32} as the values corresponding to the numerology.

TABLE 3

TABLE 4

Assuming that the number u of numerology used by the ue is 0, the ue can determine the numerology used by itself to have values of 4, 5, 8, 10, 16, 20, and 32 according to table 3 above. The user terminal may use a value set formed by the remaining values except 4, 5, 8, 10, 16, 20, and 32 in the second value set as the first value set, so that the first value set determined by the user terminal is {0, 1, 2, 3 }.

Assuming that the number u of the numerology used by the ue is 0, according to the above table 4, assuming that the numerology in table 4 takes the relationship of "and", the ue can determine that the numerology whose number is not less than the numerology used by itself (i.e., the numerologies whose numbers are 0, 1, 2, 3, 4, 5, respectively) corresponds to values of 4, 5, 8, 10, 16, 20, and 32. The user terminal may use a value set formed by the remaining values except 4, 5, 8, 10, 16, 20, and 32 in the second value set as the first value set, so that the first value set determined by the user terminal is {0, 1, 2, 3 }. It is easy to see that the value in the first value set determined by the user terminal at this time is small, and if scheduling timing required for BWP handover is not less than 4, the first value set does not include a value used for BWP handover under numerology numbered 0.

Assuming that the number u of the numerology used by the ue is 2, according to the above table 3, the ue can determine that the numerology with the number not less than the numerology used by itself (i.e. the numerologies with the

numbers

2, 3, 4, and 5, respectively) corresponds to the values 10, 16, 20, and 32. Next, the user may take the value set formed by the other values in the second value set except for 10, 16, 20, and 32 as the first value set, so that the first value set determined by the user is {0, 1, 2, 3, 4, 5, 8 }. It is easy to see that, if scheduling timing required for BWP handover is not less than 4, and a value in a first value set determined by the user terminal at this time includes 4 and values greater than 4, the first value set includes a value used for BWP handover in numerology with a number of 0, but the scheduling timing range is still a relatively small range because all values greater than 4 in a second value set are not included, thereby ensuring that redundancy in the HARQ-ACK codebook determined according to the scheduling timing is relatively small.

When the mode S2 is adopted, the correspondence 2 is specifically shown in table 5 below. Of course, without being limited to the definition of the value sets shown in the following table, each numerology may select a partial value in the second value set {0, 1, 2, 3, 4, 5, 8, 10, 16, 20, 32} as the value corresponding to the numerology.

TABLE 5

Assuming that the number u of the numerology used by the ue is 0, according to the above table 5, the ue may determine that the numerology used by itself corresponds to a value 4 (assuming that the value corresponding to the numerology numbered 0 in table 5 is defined as 4 at this time). The user terminal may take a value set formed by values not exceeding 4 in the second value set as the first value set, so that the first value set determined by the user terminal is {0, 1, 2, 3, 4 }. It is easy to see that, if scheduling timing required for BWP handover is greater than 4, the first value set does not include a value used for BWP handover in the numerology with number 0, and if scheduling timing required for BWP handover is not less than 4, the value in the first value set determined by the user terminal at this time includes 4, and the first value set includes a value used for BWP handover in the numerology with number 0, but the scheduling timing range is still a relatively small range because all values greater than 4 in the second value set are not included, thereby ensuring that redundancy in the HARQ-ACK codebook determined according to the scheduling timing is relatively small. Or, the user terminal may take a value set formed by values smaller than 4 in the second value set as the first value set, so that the first value set determined by the user terminal is {0, 1, 2, 3 }. It is easy to see that, if scheduling timing required for BWP switching is not less than 4, the first value set does not include a value used for BWP switching in the numerology with number 0, and of course, if scheduling timing required for BWP switching can be 3, the first value set includes a value used for BWP switching in the numerology with number 0.

It can be seen that, in this embodiment, according to the preset corresponding relationship 2, the user terminal may take the value set obtained by removing part of the values from the second value set as the first value set, or take the value set formed by the values not exceeding the specific value in the second value set as the first value set, so that the user terminal can very conveniently determine the first value set.

determining a second value according to the BWP switching time and numerology used by the user terminal; wherein the second value is one value in the second value set;

determining a first value set according to the second value; the first value set comprises values which are not more than or less than the second value in the second value set.

Wherein the BWP switching time may be pre-agreed or configured.

It should be noted that the second value determined according to the BWP handover time and the numerology used by the ue may be used as a threshold value for determining the first value set. Specifically, the user terminal may take a value set formed by values not exceeding the threshold value in the second value set as the first value set; or, the user terminal may take a value set formed by values smaller than the threshold value in the second value set as the first value set.

It can be seen that, in this embodiment, after determining the second value according to the BWP handover time and the numerology used by the ue, the ue can very conveniently determine the first value set according to the second value.

Optionally, determining the second value according to the BWP handover time and the numerology used by the ue, where the determining includes:

determining the number Y of slots (slots) according to the BWP switching time and numerology used by the user terminal; wherein Y is an integer greater than or equal to 1.

Determining a basic value set corresponding to the numerology used by the user terminal based on a preset corresponding relationship between the numerology and the basic value set; wherein, the basic value set corresponding to any numerology includes values that do not support BWP switching in the second value set under any numerology.

And respectively calculating the sum of each value in a basic value set corresponding to numerology used by the user terminal and Y, and determining the maximum sum of the calculated sum.

Wherein, the BWP switching time may be pre-agreed or configured, assuming it is T. The user terminal may determine the number of slots corresponding to the T value under different numerologies according to the T value and the slot lengths corresponding to the different numerologies. Thus, the user terminal can determine Y according to the T value and numerology used by the user terminal. Specifically, the value of Y may be 1, 3, or other values.

It should be noted that each value in any basic value set is a value of Scheduling timing that does not include BWP switching time. The second value may be considered as a value of Scheduling timing for supporting BWP handover in numerology used by the user.

The following describes the implementation of the present embodiment with two specific examples.

It should be noted that, in the following two examples, the numerology numbers u used by the ue are both 0, and based on the preset correspondence between numerology and the basic value set, the basic value set determined by the ue is all {0, 1, 2, 3 }.

In the first example, assuming that the ue determines Y to be 1 slot, the ue may determine that the Scheduling timing value set including the BWP switching time is {0, 1, 2, 3} and {1, 2, 3, 4} which is a combination result of 1. At this time, the user terminal may use 4 as the second value, that is, as a threshold value for determining the first value set.

Next, the user terminal determines that there are two possible situations in the first value set according to the second value 4. In one case, the user terminal selects a value set formed by values not exceeding 4 in the second value set as a first value set, so that the first value set is {0, 1, 2, 3, 4}, and the first value set includes any basic K0 for BWP handover scheduling. In another case, the user terminal selects the value set composed of values smaller than 4 in the second value set as the first value set, so that the first value set is {0, 1, 2, 3}, and the first value set cannot support BWP handover scheduling for some basic K0, for example, BWP handover scheduling cannot be supported when the basic K0 is 3 because there is no extra BWP handover time.

In a second example, assuming that the ue determines that Y is 3 slots, K0 is 3, the Scheduling timing for supporting BWP handover is Y + K0 is 6, 6 is not included in the second value set, and the ue determines that the value set of Scheduling timing including the BWP handover time is {3, 4, 5, 8} which is the combined result of {0, 1, 2, 3} and 3. At this time, the ue may use 8 as the second value, that is, as a threshold value for determining the first value set.

Next, the user terminal determines that there are two possible situations in the first value set according to the second value 8. In one case, the user terminal selects a value set formed by values not exceeding 8 in the second value set as the first value set, so that the first value set is {0, 1, 2, 3, 4, 5, 8}, and the first value set includes any basic K0 for BWP handover scheduling. In another case, the user terminal selects a value set composed of values smaller than 8 in the second value set as the first value set, so that the first value set is {0, 1, 2, 3, 4, 5}, and the first value set cannot support BWP handover scheduling for some basic K0, for example, BWP handover scheduling cannot be supported when the basic K0 is 3 because there is no extra BWP handover time.

It can be seen that, in this embodiment, according to BWP handover time and numerology used by the ue, the ue can conveniently determine the second value, so as to determine the first value set according to the second value.

Optionally, obtaining the first value set includes:

and receiving configuration signaling sent by the base station.

And determining a first value set according to the configuration signaling.

The configuration signaling may be sent through a higher layer signaling or a PDCCH.

In this embodiment, the user terminal may receive the configuration signaling sent by the base station, and determine the first value set according to the configuration information, so that the user terminal can very conveniently acquire the first value set.

Optionally, the configuration signaling carries each value in the first value set or an index corresponding to the first value set.

Determining a first value set according to the configuration signaling, including:

and determining a value set formed by each value in the configuration signaling as a first value set, or determining a first value set corresponding to an index in the configuration signaling.

In this embodiment, the base station may directly notify each value in the first value set to the user terminal through the configuration signaling. Specifically, the base station may notify according to the correspondence between numerology and the first value set in table 1 or table 2 above.

Taking table 2 as an example, assuming that the current u is 0, the user may notify {0, 1, 2, 3, 4, 5}, {0, 1, 2, 3, 4} or {0, 1, 2, 3, 5} to the user terminal through the configuration signaling, so that the user terminal may directly obtain the first value set from the configuration signaling.

Of course, the base station may also notify the index corresponding to the first value set to the user terminal through the configuration signaling. The user terminal may be preset with a corresponding relationship between the index of the value set and the value set. Thus, according to the corresponding relation, the user terminal can determine the first value set corresponding to the index of the configuration signaling notification.

It can be seen that, in this embodiment, the user terminal may directly determine the first value set according to the indication of the configuration signaling, and therefore, the user terminal may very conveniently obtain the first value set.

determining a first value set according to the configuration signaling; and the first value set comprises values which are not more than or less than the third value in the second value set.

In this embodiment, the third value may be used as a threshold value for determining the first value set, the base station notifies the threshold value to the user terminal through configuration signaling, and the user terminal selects a value in the second value set according to the threshold value to determine the first value set, where the first value set may or may not include BWP switching time. Specifically, assuming that the third value is 5, the ue determines that the first value set is {0, 1, 2, 3, 4, 5} or {0, 1, 2, 3, 4 }.

It can be seen that, in this embodiment, the user terminal may use the third value in the configuration signaling as a threshold value to determine the first value set, so that the user terminal may very conveniently obtain the first value set.

Optionally, obtaining the first value set includes:

Wherein, M may be 4, 5, 6 or other values, which are not listed here. The user terminal may pre-agree that a value set formed by M minimum values in the second value set is taken as the first value set (for some numerologies, values for BWP handover may not be included), so that the user terminal may very conveniently acquire the first value set.

Optionally, determining the HARQ-ACK codebook according to the first value set includes: directly determining an HARQ-ACK codebook according to the first value set; the method specifically comprises the following steps:

determining a PDCCH monitoring occasion set which corresponds to the HARQ-ACK feedback at the same time or the same uplink channel according to the first value set, and determining a HARQ-ACK codebook according to the PDCCH monitoring occasion set; or, according to the first value set, determining a downlink transmission set for performing HARQ-ACK feedback at the same time or the same uplink channel, and determining an HARQ-ACK codebook according to the downlink transmission set.

In this embodiment, after obtaining the first value set, the user terminal may directly determine the HARQ-ACK codebook according to the first value set, and at this time, if the terminal supports BWP handover, it is assumed that the first value set obtained by the user terminal already includes at least one value supporting BWP handover.

Optionally, determining the HARQ-ACK codebook according to the first value set includes:

when the user terminal does not support BWP switching on a carrier, determining an HARQ-ACK codebook corresponding to the carrier according to a first value set;

when a user terminal supports BWP handover on one carrier, for one carrier:

determining a HARQ-ACK codebook corresponding to a carrier according to the first value set, and supplementing A bit HARQ-ACK on the basis of the determined HARQ-ACK codebook, wherein A is an integer greater than or equal to 1;

or adding N fourth values to the first value set; the fourth value is a value which is not contained in the first value set in the second value set, and N is an integer which is greater than or equal to 1; and determining a HARQ-ACK codebook corresponding to a carrier according to the first value set added with the fourth value.

The determining of the HARQ-ACK codebook according to the first value set specifically includes: determining a PDCCH monitoring occasion set corresponding to the carrier for HARQ-ACK feedback at the same time or on the same uplink channel according to the first value set, and determining a HARQ-ACK codebook corresponding to the carrier according to the PDCCH monitoring occasion set; or, according to the first value set, determining a downlink transmission set for performing HARQ-ACK feedback at the same time or the same uplink channel, and determining an HARQ-ACK codebook according to the downlink transmission set;

when a user terminal does not support BWP switching on a carrier, determining a PDCCH monitoring occasion set corresponding to the carrier for carrying out HARQ-ACK feedback at the same time or the same uplink channel according to a first value set, and determining a HARQ-ACK codebook corresponding to the carrier according to the PDCCH monitoring occasion set; or, according to the first value set, determining a downlink transmission set for performing HARQ-ACK feedback at the same time or the same uplink channel, and determining an HARQ-ACK codebook according to the downlink transmission set;

when a user terminal supports BWP handover on one carrier, for one carrier:

determining a PDCCH monitoring interference acquisition set corresponding to HARQ-ACK feedback at the same time or the same uplink channel according to a first value set, determining a HARQ-ACK codebook corresponding to a carrier according to the PDCCH monitoring interference acquisition set, or determining a downlink transmission set corresponding to HARQ-ACK feedback at the same time or the same uplink channel according to the first value set, and determining a HARQ-ACK codebook according to the downlink transmission set; supplementing A bit HARQ-ACK on the basis of the determined HARQ-ACK codebook, wherein A is an integer which is greater than or equal to 1;

or adding N fourth values to the first value set; the fourth value is a value which is not contained in the first value set in the second value set, and N is an integer which is greater than or equal to 1; and determining an HARQ-ACK codebook corresponding to a carrier according to the first value set added with the fourth value (specifically, determining the HARQ-ACK codebook according to the value set in the same way).

It should be noted that the ue may or may not support BWP handover. Specifically, in the case that the ue is configured with only one BWP, the default ue does not support BWP handover; in case the user terminal is configured with more than one BWP, the default user terminal supports BWP handover.

In this embodiment, when the ue does not support BWP handover on one carrier, the ue may also determine the HARQ-ACK codebook conveniently and quickly according to the first value set.

When the user terminal supports BWP handover on one carrier, the user terminal may have two processing manners for determining the HARQ-ACK codebook for one carrier.

In the first processing mode, the ue may first determine the HARQ-ACK codebook by determining the HARQ-ACK codebook under the condition that BWP handover is not supported, and supplement the a-bit HARQ-ACK based on the determined HARQ-ACK codebook. Specifically, the supplementary a-bit HARQ-ACK may be an HARQ-ACK transmitted at the same time or the same uplink channel as the determined HARQ-ACK codebook and corresponding to the downlink transmission for BWP handover; the supplemental a-bit HARQ-ACK may be agreed to be located before, after, or elsewhere agreed to by the user terminal and base station, of the determined HARQ-ACK codebook.

In the second processing mode, after the first value set is obtained, the user terminal may add N fourth values to the first value set. Specifically, the value added by the user terminal to the first value set may be the N values with the smallest values among the values meeting the BWP switching time requirement in the second value set, and these values are the values used for BWP switching. In particular, N may be 1, 2 or other values.

After adding N fourth values to the first value set, the ue may determine, according to the first value set to which the fourth values are added, a PDCCH monitoring interference set that performs HARQ-ACK feedback at the same time or the same uplink channel. Then, the user terminal determines a HARQ-ACK codebook corresponding to one carrier according to the PDCCH monitoring occasion set; or, according to the first value set added with the fourth value, determining a downlink transmission set corresponding to the HARQ-ACK feedback at the same time or the same uplink channel. And then, the user terminal determines an HARQ-ACK codebook corresponding to one carrier according to the downlink transmission set.

It can be seen that, in this embodiment, when the ue does not support BWP handover on one carrier, the ue may directly determine the HARQ-ACK codebook according to the first value set, so as to determine the first value set more conveniently. When the user terminal supports BWP handover on a carrier, the user terminal may determine an HARQ-ACK codebook according to the first value set, and supplement the a-bit HARQ-ACK based on the determined HARQ-ACK codebook, or the user terminal may add N values for BWP handover to the first value set first, and determine the HARQ-ACK codebook according to the first value set after adding the values, so as to effectively ensure that the HARQ-ACK codebook transmitted to the base station includes HARQ-ACKs transmitted at the same time and on the same uplink channel and corresponding to downlink transmission for BWP handover.

Optionally, a is a preset number of bits for each carrier. Specifically, a may be a pre-agreed or configured value. In the embodiment, the user terminal can very conveniently determine the number of bits of the HARQ-ACK which needs to be added on the basis of the determined HARQ-ACK codebook.

Optionally, when the PDCCH scheduling for performing BWP handover is scheduled using a Transport Block (TB) 1 to transmit PDSCH, a is equal to 1. In this embodiment, the user equipment may also determine the number of bits of HARQ-ACK that need to be added based on the determined HARQ-ACK codebook very conveniently.

Alternatively, a may be determined according to a transmission mode used by the user terminal. Specifically, a ═ C × B; wherein, B is the number of PDCCH monitoring sessions included in the slot range determined by the user terminal according to BWP handover (the number is specifically determined according to scheduling timing and HARQ-ACK timing used during BWP handover); the transmission mode used by the user terminal is 1TB or 2TB, and when HARQ-ACK space combination is carried out, C is 1; or when the transmission mode used by the user terminal is 2TB and HARQ-ACK space combination is not performed, C is 2; or when the carrier transmission mode used by the user terminal is Code Block Group (CBG) based transmission, C is the preset maximum CBG number. In this embodiment, the user equipment may also determine the number of bits of HARQ-ACK that need to be added based on the determined HARQ-ACK codebook very conveniently.

The following describes a specific implementation process of the present embodiment in detail by using a specific example.

Assuming that a second value set of a scheduling timing relationship (i.e., downlink scheduling timing) from a PDCCH to a PDSCH that is configurable in the system is K0 ═ {0, 1, 2, 3, 4, 5, 8, 10, 16, 20, 32}, i.e., a PDCCH in slot n schedules a PDSCH in slot n + K0, where, for each PDSCH, a time domain indicator field in a DCI format used by the PDCCH that schedules the PDSCH informs a K0 value to a user terminal for determining the slot where the PDSCH is located. It should be noted that if the HARQ-ACK codebook is determined according to the largest K0 set, since the K0 set includes scheduling timing for BWP handover scheduling supported by different numerologies, there are more redundant bits in the semi-static codebook, which reduces HARQ-ACK transmission efficiency and performance.

In view of this, in this embodiment, the ue side may configure a corresponding relationship between different numerology and values for BWP handover in the value set of K0 in table 3, and may determine that the first value set is {0, 1, 2, 3} if the current numerology is u ═ 0; at this time, the first value set does not include a value for BWP handover, and the user terminal needs to determine which way to select according to whether BWP handover is supported and determine the HARQ-ACK codebook according to the first value set.

If the BWP handover is not supported, for example, the user equipment is configured with only 1 BWP, the default is not supported, because the BWP handover is not required, the user equipment may determine the HARQ-ACK codebook directly according to the first value set.

If BWP handover is supported, e.g. the user terminal is configured with more than 1 BWP, then by default it is supported:

the HARQ-ACK of the PDSCH for BWP handover needs to be added with a bit above the HARQ-ACK codebook determined according to the first value set, for example, if the interval between two BWP handovers is longer, only one PDSCH undergoing BWP handover needs to feed back HARQ-ACK at one uplink time or one uplink channel, if the PDCCH promised for BWP handover can only schedule PDSCH transmitted using 1TB, a is 1, if the number of HARQ-ACK bits corresponding to the PDSCH scheduled by the PDCCH for BWP switching is determined according to the transmission mode of the current carrier, A-C, wherein when the transmission mode is 1TB or the transmission mode is 2TB and HARQ-ACK spatial combination is performed, C is 1, when the transmission mode is 2TB and HARQ-ACK space combination is not carried out, C is 2, and when the transmission mode is CBG-based transmission, C is the configured maximum CBG number; for another example, HARQ-ACK feedback may be required for multiple PDSCHs performing BWP handover at one uplink time or on one uplink channel, if a is determined according to scheduling timing used during BWP handover and the number of PDCCH monitoring sessions included in a slot range determined by HARQ-ACK timing or the number of downlink transmissions B, if there are several PDCCH monitoring sessions or several downlink transmissions, then several PDSCH transmissions may be performed, and if the number of HARQ-ACK bits corresponding to each PDSCH is determined as C in the same manner as above, then a-C × B bits HARQ-ACK is increased; the increased position can be appointed to be in front of or behind the generated HARQ-ACK codebook, as long as the user terminal is agreed to be consistent with the base station;

or N values are added on the basis of the first value set, and the HARQ-ACK codebook is determined according to the first value set added with the N values; for example, 1 or 2 scheduling timing values switched by BWP are preconfigured or agreed for each numerology, for example, as shown in table 4, the values in table 4 are merged with the first value set, and if u is 0, the first value set {0, 1, 2, 3, 4, 5} to which N values are added is obtained.

For another example, if the corresponding relationship between different numerologies and the first value set is directly defined, the first value set is directly obtained, for example, it is agreed that each numerology corresponds to {0, 1, 2, 3} as the first value set, and certainly, the first value sets corresponding to different numerologies may be different, for example, as shown in table 1, the obtained first value set is the same as the first value set obtained according to the indication manner of table 3, and does not include a value for BWP handover, and the user terminal needs to determine which manner to select according to whether BWP handover is supported or not to determine the HARQ-ACK codebook according to the first value set, and the specific manner is the same and is not described again; for another example, as shown in table 2, if the first value set includes at least one value used for BWP handover, it may be determined that the first value set is {0, 1, 2, 3, 4, 5} according to the current numerology, for example, u ═ 0, and then the HARQ-ACK codebook may be determined directly according to the first value set.

For another example, a first processing time (BWP switching time) is agreed or configured in advance as T, then according to a T value and slot lengths corresponding to different numerologies, the number of slots corresponding to T in different numerologies may be determined, assuming that {0, 1, 2, 3} is used as a basic K0 set, that is, scheduling timing that does not include BWP switching time, and if it is determined that T corresponds to Y slots for a numerology, it is necessary to select a minimum bwt value that is not less than the sum of K0 and Y values in a basic K0 set in a second value set as scheduling timing that supports BWP switching; for example, for a numerology, it is determined that Y is 1 slot, it may be determined that a combination result of scheduling timing including BWP switching time is {1, 2, 3, 4}, i.e., a limit value is 4, a value set not exceeding 4 in the second value set is selected as a first value set {0, 1, 2, 3, 4}, the first value set includes any basic K0 for BWP switching scheduling, and in another case, a value set smaller than 4 in the second value set is selected as a first value set {0, 1, 2, 3, 4}, the first value set cannot support BWP switching scheduling for some basic K0, for example, when the basic K0 is 3, BWP switching scheduling cannot be supported because there is no additional BWP switching time; if it is determined that Y is 3 slots, K0 is 3, and scheduling timing supporting BWP switching is obtained as Y + K0 is 6, and is not included in the second value set {0, 1, 2, 3, 4, 5, 8, 10, 16, 20, 32}, then the minimum value greater than the value is 8, so as to determine that the value set of scheduling timing including BWP switching time is {0, 1, 2, 3} and the combined result of 3, i.e., {3, 4, 5, 8}, i.e., the limit value is 8, in one case, the value not greater than 8 in the second value set is selected as the first value set {0, 1, 2, 3, 4, 5, 8}, the first value set includes any basic K0 for BWP switching scheduling, in the other case, the value less than 8 in the second value set is selected as the first value set {0, 1, 2, 3, 4, 5, 8}, and the first value set includes any basic K0 for BWP switching scheduling, and in the other case, the value set less than 8 in the first value set is selected as the value set {0, i.e., {0, 1, 2, 3, 5, 0, and the basic value set can not support BWP switching, for example, when the basic K0 is 3, BWP handover scheduling cannot be supported because there is no extra BWP handover time; for the first value set not including the BWP switching time, the user terminal needs to determine which way to select according to whether BWP switching is supported or not to determine the HARQ-ACK codebook according to the first value set.

For another example, the configuration signaling directly notifies the first value set to the user equipment, for example, a result obtained according to a correspondence between numerology and value set in table 1 or table 2 is notified, taking table 2 as an example, if current u is 0, it may notify {0, 1, 2, 3, 4, 5} or {0, 1, 2, 3, 4, 5}, specifically which set is selected may be autonomously selected by the base station after considering that BWP handover time requirements are met, or configuration signaling notifies a threshold value, which is selected in a second set according to the threshold value, and so on, the first value set may or may not include BWP handover time, and for the first value set not including BWP handover time, the user equipment needs to determine which manner is selected according to the first value set according to whether BWP handover is supported or not, and determine HARQ-ACK codebook according to the first value set, in the same way, the detailed description is omitted, and for the first value set including the BWP switching time, the HARQ-ACK codebook may be directly determined according to the first value set.

For another example, it is always agreed that the minimum M value in the second value set is the first value set, and for some numerologies, the value for BWP handover may not be included; for the first value set not including the BWP switching time, the user terminal needs to determine which way to select according to whether BWP switching is supported or not to determine the HARQ-ACK codebook according to the first value set.

In the above process, the process of determining the HARQ-ACK codebook according to the first value set may be: assuming that a value set of a scheduling timing relationship from a PDSCH to HARQ-ACK is K1 ═ 0, 1, 2, 3, 4, 5, 6, 7}, notifying a K1 value to a user terminal by an HARQ-ACK timing indication domain in a DCI format used by a PDCCH for scheduling the PDSCH, and determining a slot where HARQ-ACK feedback of the PDSCH is located; assuming that a semi-static HARQ-ACK code determination mode is used, a PDCCH monitoring occasion set corresponding to the same time or the same uplink channel for HARQ-ACK feedback is determined according to scheduling timing and HARQ-ACK timing in the first value set, and a HARQ-ACK code is determined according to the PDCCH monitoring occasion set, as shown in fig. 3 (fig. 3, UL indicates uplink and DL indicates downlink), since slot n +9 and slot n +8 are uplink and slot n +7 is unburnt, although it is determined according to the scheduling timing and HARQ-ACK timing that these slots also correspond to HARQ-ACK feedback in slot n +9, there is no PDCCH monitoring occasion in both slots, and it is assumed that there is a PDCCH monitoring occasion in each slot, so that it is determined that the slot of the PDCCH monitoring occasion set is from the first slot n +9 to the second slot +6 of the first slot set, that is, the PDCCH monitoring scheduling set includes M ═ 8 PDCCH monitoring scheduling; mode W1: for each carrier, determining HARQ-ACK codebook corresponding to the carrier according to the size of the PDCCH monitoring interference set corresponding to the carrier, for example, the carrier in fig. 3, assuming that each downlink transmission corresponds to 1TB, 9-bit HARQ-ACK needs to be generated, each HARQ-ACK sequence corresponds to one PDCCH monitoring interference in the PDCCH monitoring interference set, and so on, obtaining HARQ-ACK codebook of each carrier, and concatenating the HARQ-ACK codebook together to obtain HARQ-ACK codebook which needs to be transmitted by the user terminal; mode W2: or determining a PDCCH monitoring interference set for all carriers, then generating HARQ-ACK in each PDCCH monitoring interference according to the carrier sequence, and finally obtaining HARQ-ACK codebook corresponding to multiple carriers in the PDCCH monitoring interference set, where the total number of generated HARQ-ACK bits is the same as the mode W1, and the difference is the ordering of HARQ-ACK, where the mode W1 is a time domain first and then a frequency domain, and the mode W2 is a frequency domain first and then a time domain.

It should be noted that the scheduling timing and HARQ-ACK timing in the above embodiments are valid for slot-based transmission and micro slot-based (mini-slot) transmission, and if slot-based transmission is adopted, only one downlink transmission is performed in each slot, and if min-slot-based transmission is adopted, multiple downlink transmissions may be performed in each slot. In the above fig. 3, only each slot includes 1 PDCCH monitoring occasion, one slot may include more than 1 PDCCH monitoring occasion, some slots may include PDCCH monitoring occasion, and some slots do not include PDCCH monitoring occasion.

It should be noted that, for the base station side, the first value set may be determined in a manner consistent with that of the user terminal side, for example, the first value set is determined according to numerology used by the user terminal, or the first value set is determined according to content of a configuration signaling notifying the user terminal, or the first value set is determined according to a predetermined convention. After determining the first value set, the base station may determine, according to the first value set, the bit number of the HARQ-ACK codebook sent by the user terminal in a manner consistent with that of the user terminal side. Therefore, the base station can receive the HARQ-ACK codebook sent by the user terminal according to the determined bit number and analyze the HARQ-ACK corresponding to each downlink transmission from the HARQ-ACK codebook.

In conclusion, the embodiment can improve the transmission efficiency and performance of the HARQ-ACK codebook.

Referring to fig. 4, a flowchart of another HARQ-ACK codebook determination method according to an embodiment of the present invention is shown. As shown in fig. 4, the method is applied to a base station, and includes the following steps:

step 401, acquiring a first value set; the first value set is a subset of a second value set, and the second value set is a full set of preset scheduling timing relation values from the PDCCH to the PDSCH;

and 402, determining the bit number of the HARQ-ACK codebook sent by the user terminal according to the first value set.

Optionally, obtaining the first value set includes:

and determining a first value set according to the baseband parameter numerology used by the user terminal.

determining the numerology used by the user terminal or the value corresponding to the numerology with the number not less than the numerology used by the user terminal based on the preset corresponding relationship between the numerology and the value; wherein, the value corresponding to any numerology is at least one value in the second value set;

determining a first value set; the first value set comprises the rest values or the numbers except the value corresponding to the numerology used by the user terminal in the second value set, wherein the rest values or the numbers except the value corresponding to the numerology used by the user terminal are not less than the rest values except the value corresponding to the numerology used by the user terminal;

alternatively, the first and second electrodes may be,

determining a second value according to the bandwidth part BWP switching time and numerology used by the user terminal; wherein the second value is one value in the second value set;

determining the slot number Y according to the BWP switching time and numerology used by the user terminal; wherein Y is an integer greater than or equal to 1;

determining a basic value set corresponding to the numerology used by the user terminal based on a preset corresponding relationship between the numerology and the basic value set; wherein, the basic value set corresponding to any numerology includes each value which does not support BWP switching in the second value set under any numerology;

respectively calculating the sum of each value in a basic value set corresponding to numerology used by a user terminal and Y, and determining the maximum sum of the calculated sum;

Optionally, the method further includes:

sending a configuration signaling to a user terminal; the configuration signaling is used for notifying the first value set.

Optionally, the configuration signaling carries a third value, where the third value is one value in the second value set, and the third value is used to determine a set formed by values not greater than or less than the third value in the second value set as the first value set.

Optionally, obtaining the first value set includes:

Optionally, determining the bit number of the HARQ-ACK codebook sent by the user equipment according to the first value set includes:

when the user terminal does not support BWP handover on one carrier:

when a user terminal supports BWP handover on one carrier, for one carrier:

determining the bit number of an HARQ-ACK codebook according to the first value set, and determining that a bit HARQ-ACK is supplemented to a user terminal on the basis of the determined HARQ-ACK codebook, wherein A is an integer greater than or equal to 1;

or adding N fourth values to the first value set; the fourth value is a value which is not contained in the first value set in the second value set, and N is an integer which is greater than or equal to 1; and determining the bit number of the HARQ-ACK codebook according to the first value set added with the fourth value.

It should be noted that, in this embodiment, a specific implementation manner of obtaining the first value set by the base station and a specific implementation manner of determining the bit number of the HARQ-ACK codebook sent by the user terminal according to the first value set may refer to the description of the specific implementation manner of the method embodiment at the user terminal side, and in order to avoid repeated description, this embodiment is not described again, and the same beneficial effects may also be achieved.

Referring to fig. 5, a schematic structural diagram of a user terminal according to an embodiment of the present invention is shown. As shown in fig. 5, the user terminal 500 includes:

an obtaining module 501, configured to obtain a first value set; the first value set is a subset of a second value set, and the second value set is a full set of scheduling timing relation values from a preset Physical Downlink Control Channel (PDCCH) to a Physical Downlink Shared Channel (PDSCH);

a determining module 502, configured to determine an HARQ-ACK codebook according to the first value set.

Optionally, the obtaining module 501 is configured to determine the first value set according to a baseband parameter numerology used by the user terminal.

Optionally, the obtaining module 501 is further configured to determine, based on a preset correspondence between numerology and a value set, a value set corresponding to numerology used by the user terminal as a first value set; and the value set corresponding to any numerology is a subset of the second value set.

Optionally, the obtaining module 501 is further configured to determine, based on a preset corresponding relationship between numerology and value, numerology used by the user terminal or a value corresponding to numerology with a number not less than that used by the user terminal; wherein, the value corresponding to any numerology is at least one value in the second value set; determining a first value set; the first value set comprises the rest values or the numbers except the value corresponding to the numerology used by the user terminal in the second value set, wherein the rest values or the numbers except the value corresponding to the numerology used by the user terminal are not less than the rest values except the value corresponding to the numerology used by the user terminal;

alternatively, the first and second electrodes may be,

the obtaining module 501 is further configured to determine a value corresponding to the numerology used by the user terminal based on a preset correspondence between the numerology and the value; wherein, the value corresponding to any numerology is at least one value in the second value set; determining a first value set; and the first value set comprises values which are not more than or less than the values corresponding to the numerology used by the user terminal in the second value set.

Optionally, the obtaining module 501 is further configured to determine a second value according to the bandwidth part BWP handover time and numerology used by the user terminal; wherein the second value is one value in the second value set; determining a first value set according to the second value; the first value set comprises values which are not more than or less than the second value in the second value set.

Optionally, the obtaining module 501 is further configured to determine the slot number Y according to BWP switching time and numerology used by the user terminal; wherein Y is an integer greater than or equal to 1; determining a basic value set corresponding to the numerology used by the user terminal based on a preset corresponding relationship between the numerology and the basic value set; wherein, the basic value set corresponding to any numerology includes each value which does not support BWP switching in the second value set under any numerology; respectively calculating the sum of each value in a basic value set corresponding to numerology used by a user terminal and Y, and determining the maximum sum of the calculated sum; and determining the value with the minimum value in the values which are not less than the determined sum value in the second value set as the second value.

Optionally, the obtaining module 501 is further configured to receive a configuration signaling sent by the base station; and determining a first value set according to the configuration signaling.

Optionally, the configuration signaling carries each value in the first value set or an index corresponding to the first value set; the obtaining module 501 is further configured to determine a value set formed by each value in the configuration signaling as a first value set, or determine a first value set corresponding to an index in the configuration signaling.

Optionally, the configuration signaling carries a third value; wherein the third value is one value in the second value set; the obtaining module 501 is further configured to determine a first value set according to the configuration signaling; and the first value set comprises values which are not more than or less than the third value in the second value set.

Optionally, the obtaining module 501 is further configured to determine a first value set; the first value set comprises M values with the minimum values in the second value set, M is smaller than the total number of the values in the second value set, and M is an integer greater than or equal to 1.

Optionally, the determining module 502 is further configured to, when the ue does not support BWP handover on one carrier: determining an HARQ-ACK codebook according to the first value set; when a user terminal supports BWP handover on one carrier, for one carrier: determining an HARQ-ACK codebook according to the first value set, and supplementing an A bit HARQ-ACK on the basis of the determined HARQ-ACK codebook, wherein A is an integer greater than or equal to 1; or adding N fourth values to the first value set; the fourth value is a value which is not contained in the first value set in the second value set, and N is an integer which is greater than or equal to 1; and determining a HARQ-ACK codebook corresponding to a carrier according to the first value set added with the fourth value.

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

Referring to fig. 6, a schematic structural diagram of a base station according to an embodiment of the present invention is shown. As shown in fig. 6, the base station 600 includes:

an obtaining module 601, configured to obtain a first value set; the first value set is a subset of a second value set, and the second value set is a full set of scheduling timing relation values from a preset Physical Downlink Control Channel (PDCCH) to a Physical Downlink Shared Channel (PDSCH);

a determining module 602, configured to determine, according to the first value set, a bit number of an HARQ-ACK codebook sent by the user equipment.

Optionally, the obtaining module 601 is further configured to determine the first value set according to a baseband parameter numerology used by the user terminal.

Optionally, the obtaining module 601 is further configured to determine, based on a preset correspondence between numerology and a value set, a value set corresponding to numerology used by the user terminal as a first value set; and the value set corresponding to any numerology is a subset of the second value set.

Optionally, the obtaining module 601 is further configured to determine, based on a preset corresponding relationship between numerology and value, numerology used by the user terminal or a value corresponding to numerology with a number not less than that used by the user terminal; wherein, the value corresponding to any numerology is at least one value in the second value set; determining a first value set; the first value set comprises the rest values or the numbers except the value corresponding to the numerology used by the user terminal in the second value set, wherein the rest values or the numbers except the value corresponding to the numerology used by the user terminal are not less than the rest values except the value corresponding to the numerology used by the user terminal;

alternatively, the first and second electrodes may be,

an obtaining module 601, configured to determine, based on a preset correspondence between numerology and a value, a value corresponding to numerology used by the user terminal; wherein, the value corresponding to any numerology is at least one value in the second value set; determining a first value set; wherein the first value set includes a value that is not more than or less than a value corresponding to the numerology used by the user terminal in the second value set.

Optionally, the obtaining module 601 is further configured to determine a second value according to the bandwidth part BWP handover time and numerology used by the user terminal; wherein the second value is one value in the second value set; determining a first value set according to the second value; the first value set comprises values which are not more than or less than the second value in the second value set.

Optionally, the obtaining module 601 is further configured to determine the slot number Y according to the BWP switching time and numerology used by the user terminal; wherein Y is an integer greater than or equal to 1; determining a basic value set corresponding to the numerology used by the user terminal based on a preset corresponding relationship between the numerology and the basic value set; wherein, the basic value set corresponding to any numerology includes each value which does not support BWP switching in the second value set under any numerology; respectively calculating the sum of each value in a basic value set corresponding to numerology used by a user terminal and Y, and determining the maximum sum of the calculated sum; and determining the value with the minimum value in the values which are not less than the determined sum value in the second value set as the second value.

Optionally, the base station 600 further includes:

a sending module, configured to send a configuration signaling to a user terminal; the configuration signaling is used for notifying the first value set.

Optionally, the obtaining module 601 is further configured to determine a first value set; the first value set comprises M values with the minimum values in the second value set, M is smaller than the total number of the values in the second value set, and M is an integer greater than or equal to 1.

Optionally, the determining module 602 is further configured to, when the ue does not support BWP handover on one carrier: determining the bit number of the HARQ-ACK codebook according to the first value set; when a user terminal supports BWP handover on one carrier, for one carrier: determining the bit number of an HARQ-ACK codebook according to the first value set, and determining that a bit HARQ-ACK is supplemented to a user terminal on the basis of the determined HARQ-ACK codebook, wherein A is an integer greater than or equal to 1; or adding N fourth values to the first value set; the fourth value is a value which is not contained in the first value set in the second value set, and N is an integer which is greater than or equal to 1; and determining the bit number of the HARQ-ACK codebook according to the first value set added with the fourth value.

It should be noted that, in this embodiment, the base station 600 may be a base station of any implementation manner in the method embodiment of the present invention, and any implementation manner of the base station in the method embodiment of the present invention may be implemented by the base station 600 in this embodiment, and the same beneficial effects are achieved, and details are not described here.

Referring to fig. 7, fig. 7 is a schematic structural diagram of another ue according to an embodiment of the present invention, and as shown in fig. 7, the ue includes: a transceiver 710, a memory 720, a processor 700, and a computer program stored on the memory 720 and executable on the processor 700, wherein:

a transceiver 710 configured to obtain a first value set; the first value set is a subset of a second value set, and the second value set is a full set of scheduling timing relation values from a preset Physical Downlink Control Channel (PDCCH) to a Physical Downlink Shared Channel (PDSCH);

a processor 700, configured to determine an HARQ-ACK codebook according to the first value set;

alternatively, the first and second electrodes may be,

a processor 700 configured to obtain a first value set; the first value set is a subset of a second value set, and the second value set is a full set of scheduling timing relation values from a preset Physical Downlink Control Channel (PDCCH) to a Physical Downlink Shared Channel (PDSCH); and determining the HARQ-ACK codebook according to the first value set.

The transceiver 710 may be used for receiving and transmitting data under the control of the processor 700.

In FIG. 7, 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 700 and memory represented by memory 720. 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 710 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 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 in performing operations.

It should be noted that the memory 720 is not limited to be on the user terminal, and the memory 720 and the processor 700 may be separated in different geographical locations.

Optionally, the transceiver 710 is further configured to determine a first value set according to a baseband parameter numerology used by the user terminal;

alternatively, the first and second electrodes may be,

processor 700 is further configured to determine a first set of values according to a baseband parameter numerology used by the user terminal.

Optionally, the transceiver 710 is further configured to determine, based on a correspondence between a preset numerology and a value set, a value set corresponding to the numerology used by the user terminal as a first value set; wherein, the value set corresponding to any numerology is a subset of the second value set;

alternatively, the first and second electrodes may be,

processor 700 is further configured to determine, based on a preset correspondence between numerology and a value set, a value set corresponding to numerology used by the user terminal as a first value set; and the value set corresponding to any numerology is a subset of the second value set.

Optionally, the transceiver 710 is further configured to determine, based on a preset correspondence between numerology and values, numerology used by the user terminal or a value corresponding to numerology with a number not less than that used by the user terminal; wherein, the value corresponding to any numerology is at least one value in the second value set; determining a first value set; the first value set comprises the rest values or the numbers except the value corresponding to the numerology used by the user terminal in the second value set, wherein the rest values or the numbers except the value corresponding to the numerology used by the user terminal are not less than the rest values except the value corresponding to the numerology used by the user terminal;

alternatively, the first and second electrodes may be,

the transceiver 710 is further configured to determine a value corresponding to the numerology used by the user terminal based on a preset correspondence between numerology and the value; wherein, the value corresponding to any numerology is at least one value in the second value set; determining a first value set; the first value set comprises values which are not more than or less than values corresponding to numerology used by the user terminal in the second value set;

alternatively, the first and second electrodes may be,

processor 700, further configured to determine, based on a preset correspondence between numerology and a value, numerology used by the user terminal or a value corresponding to numerology having a number not less than numerology used by the user terminal; wherein, the value corresponding to any numerology is at least one value in the second value set; determining a first value set; the first value set comprises the rest values or the numbers except the value corresponding to the numerology used by the user terminal in the second value set, wherein the rest values or the numbers except the value corresponding to the numerology used by the user terminal are not less than the rest values except the value corresponding to the numerology used by the user terminal;

alternatively, the first and second electrodes may be,

processor 700, further configured to determine, based on a preset correspondence between numerology and a value, a value corresponding to numerology used by the user terminal; wherein, the value corresponding to any numerology is at least one value in the second value set; determining a first value set; and the first value set comprises values which are not more than or less than the values corresponding to the numerology used by the user terminal in the second value set.

Optionally, the transceiver 710 is further configured to determine a second value according to the bandwidth part BWP handover time and numerology used by the user terminal; wherein the second value is one value in the second value set; determining a first value set according to the second value; the first value set comprises values which are not more than or less than the second value in the second value set;

alternatively, the first and second electrodes may be,

processor 700 is further configured to determine a second value based on the bandwidth part BWP handover time and numerology used by the user terminal; wherein the second value is one value in the second value set; determining a first value set according to the second value; the first value set comprises values which are not more than or less than the second value in the second value set.

Optionally, the transceiver 710 is further configured to determine the slot number Y according to the BWP handover time and numerology used by the ue; wherein Y is an integer greater than or equal to 1; determining a basic value set corresponding to the numerology used by the user terminal based on a preset corresponding relationship between the numerology and the basic value set; wherein, the basic value set corresponding to any numerology includes each value which does not support BWP switching in the second value set under any numerology; respectively calculating the sum of each value in a basic value set corresponding to numerology used by a user terminal and Y, and determining the maximum sum of the calculated sum; determining the value with the minimum value in the values which are not less than the determined sum value in the second value set as a second value;

alternatively, the first and second electrodes may be,

processor 700 is further configured to determine a slot number Y according to a BWP handover time and numerology used by the user terminal; wherein Y is an integer greater than or equal to 1; determining a basic value set corresponding to the numerology used by the user terminal based on a preset corresponding relationship between the numerology and the basic value set; wherein, the basic value set corresponding to any numerology includes each value which does not support BWP switching in the second value set under any numerology; respectively calculating the sum of each value in a basic value set corresponding to numerology used by a user terminal and Y, and determining the maximum sum of the calculated sum; and determining the value with the minimum value in the values which are not less than the determined sum value in the second value set as the second value.

Optionally, the transceiver 710 is further configured to receive a configuration signaling sent by the base station; determining a first value set according to the configuration signaling;

alternatively, the first and second electrodes may be,

the transceiver 710, further configured to receive a configuration signaling sent by the base station;

the processor 700 is further configured to determine a first value set according to the configuration signaling.

the transceiver 710 is further configured to determine a value set formed by each value in the configuration signaling as a first value set, or determine a first value set corresponding to an index in the configuration signaling;

alternatively, the first and second electrodes may be,

the processor 700 is further configured to determine a value set formed by each value in the configuration signaling as a first value set, or determine a first value set corresponding to an index in the configuration signaling.

the transceiver 710 is further configured to determine a first value set according to the configuration signaling; the first value set comprises values which are not more than or less than the third value in the second value set;

alternatively, the first and second electrodes may be,

the processor 700 is further configured to determine a first value set according to the configuration signaling; and the first value set comprises values which are not more than or less than the third value in the second value set.

Optionally, the transceiver 710 is further configured to determine a first value set; the first value set comprises M values with the minimum values in the second value set, M is smaller than the total number of the values in the second value set, and M is an integer greater than or equal to 1;

alternatively, the first and second electrodes may be,

the processor 700 is further configured to determine a first set of values; the first value set comprises M values with the minimum values in the second value set, M is smaller than the total number of the values in the second value set, and M is an integer greater than or equal to 1.

Optionally, the processor 700 is further configured to, when the ue does not support BWP handover on one carrier: determining an HARQ-ACK codebook according to the first value set; when a user terminal supports BWP handover on one carrier, for one carrier: determining an HARQ-ACK codebook according to the first value set, and supplementing an A bit HARQ-ACK on the basis of the determined HARQ-ACK codebook, wherein A is an integer greater than or equal to 1; or adding N fourth values to the first value set; the fourth value is a value which is not contained in the first value set in the second value set, and N is an integer which is greater than or equal to 1; and determining a HARQ-ACK codebook corresponding to a carrier according to the first value set added with the fourth value.

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

Referring to fig. 8, fig. 8 is a structural diagram of another base station provided in the present invention, and as shown in fig. 8, the base station includes: a memory 820, a processor 800, and a computer program stored on the memory 820 and executable on the processor 800, wherein:

a processor 800 configured to obtain a first value set; the first value set is a subset of a second value set, and the second value set is a full set of scheduling timing relation values from a preset Physical Downlink Control Channel (PDCCH) to a Physical Downlink Shared Channel (PDSCH); and determining the bit number of the HARQ-ACK codebook sent by the user terminal according to the first value set.

In fig. 8, 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 800 and memory represented by memory 820. 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 processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 800 in performing operations.

It should be noted that the memory 820 is not limited to be located only on the base station, and the memory 820 and the processor 800 may be separated and located in different geographical locations.

Optionally, the processor 800 is further configured to determine the first value set according to a baseband parameter numerology used by the user terminal.

Optionally, the processor 800 is further configured to determine, as the first value set, a value set corresponding to the numerology used by the user terminal based on a preset correspondence between the numerology and the value set; and the value set corresponding to any numerology is a subset of the second value set.

Optionally, the processor 800 is further configured to determine, based on a preset correspondence between numerology and values, numerology used by the user terminal or a value corresponding to numerology with a number not less than that used by the user terminal; wherein, the value corresponding to any numerology is at least one value in the second value set; determining a first value set; the first value set comprises the rest values or the numbers except the value corresponding to the numerology used by the user terminal in the second value set, wherein the rest values or the numbers except the value corresponding to the numerology used by the user terminal are not less than the rest values except the value corresponding to the numerology used by the user terminal;

alternatively, the first and second electrodes may be,

processor 800, further configured to determine, based on a preset correspondence between numerology and a value, a value corresponding to numerology used by the user terminal; wherein, the value corresponding to any numerology is at least one value in the second value set; determining a first value set; and the first value set comprises values which are not more than or less than the values corresponding to the numerology used by the user terminal in the second value set.

Optionally, processor 800 is further configured to determine a second value according to a bandwidth part BWP handover time and numerology used by the user terminal; wherein the second value is one value in the second value set; determining a first value set according to the second value; the first value set comprises values which are not more than or less than the second value in the second value set.

Optionally, processor 800 is further configured to determine slot number Y according to BWP handover time and numerology used by the user terminal; wherein Y is an integer greater than or equal to 1; determining a basic value set corresponding to the numerology used by the user terminal based on a preset corresponding relationship between the numerology and the basic value set; wherein, the basic value set corresponding to any numerology includes each value which does not support BWP switching in the second value set under any numerology; respectively calculating the sum of each value in a basic value set corresponding to numerology used by a user terminal and Y, and determining the maximum sum of the calculated sum; and determining the value with the minimum value in the values which are not less than the determined sum value in the second value set as the second value.

Optionally, the base station further comprises a transceiver 810;

a transceiver 810 for transmitting configuration signaling to a user terminal; the configuration signaling is used for notifying the first value set.

Among other things, a transceiver 810 for receiving and transmitting data under the control of the processor 800. The transceiver 810 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.

Optionally, the processor 800 is further configured to determine a first value set; the first value set comprises M values with the minimum values in the second value set, M is smaller than the total number of the values in the second value set, and M is an integer greater than or equal to 1.

Optionally, the processor 800 is further configured to, when the ue does not support BWP handover on one carrier: determining the bit number of the HARQ-ACK codebook according to the first value set; when a user terminal supports BWP handover on one carrier, for one carrier: determining the bit number of an HARQ-ACK codebook according to the first value set, and determining that a bit HARQ-ACK is supplemented to a user terminal on the basis of the determined HARQ-ACK codebook, wherein A is an integer greater than or equal to 1; or adding N fourth values to the first value set; the fourth value is a value which is not contained in the first value set in the second value set, and N is an integer which is greater than or equal to 1; and determining the bit number of the HARQ-ACK codebook according to the first value set added with the fourth value.

It should be noted that, in this embodiment, the base station may be a base station of any implementation manner in the method embodiment in the present invention, and any implementation manner of the base station in the method embodiment in the present invention may be implemented by the base station in this embodiment, and the same beneficial effects are achieved, and details are not described here.

The embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps in the method for determining the HARQ-ACK codebook at the user terminal side provided in the embodiment of the present invention.

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 a processor, implements the steps in the method for determining the HARQ-ACK codebook at the base station side 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 transceiving method 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 codebook determination method for hybrid automatic repeat request acknowledgement (HARQ-ACK) is applied to a user terminal, and comprises the following steps:

acquiring a first value set; the first value set is a proper subset of a second value set, and the second value set is a full set of scheduling timing relation values from a preset Physical Downlink Control Channel (PDCCH) to a Physical Downlink Shared Channel (PDSCH);

and determining the HARQ-ACK codebook according to the first value set.

2. The method of claim 1, wherein obtaining the first set of values comprises:

3. The method of claim 2, wherein the determining the first set of values according to numerology used by the ue comprises:

4. The method of claim 2, wherein the determining the first set of values according to numerology used by the ue comprises:

alternatively, the first and second electrodes may be,

5. The method of claim 2, wherein the determining the first set of values according to numerology used by the ue comprises:

6. The method of claim 5, wherein determining the second value according to BWP handoff time and numerology used by the user terminal comprises:

7. The method of claim 1, wherein obtaining the first set of values comprises:

receiving a configuration signaling sent by a base station;

and determining the first value set according to the configuration signaling.

8. The method of claim 7, wherein the configuration signaling carries each value in the first set of values or an index corresponding to the first set of values;

9. The method of claim 7, wherein the configuration signaling carries a third value; wherein the third value is one value in the second value set;

10. The method of claim 1, wherein obtaining the first set of values comprises:

11. The method according to any one of claims 1 to 10, wherein the determining a HARQ-ACK codebook according to the first set of values comprises:

when the user terminal does not support BWP handover on one carrier:

determining an HARQ-ACK codebook according to the first value set;

12. The method of claim 11,

a is a preset bit number; alternatively, the first and second electrodes may be,

when a PDCCH appointed for BWP switching transmits PDSCH by using a 1 transport block TB, A = 1; alternatively, the first and second electrodes may be,

a = C × B; b is the number of PDCCH monitoring sessions included in a slot range determined by the user terminal according to BWP switching; the transmission mode used by the user terminal is 1TB or 2TB, and when HARQ-ACK space combination is carried out, C = 1; or when the transmission mode used by the user terminal is 2TB and HARQ-ACK spatial combination is not performed, C = 2; or when the carrier transmission mode used by the user terminal is based on the transmission of the code block group CBG, C = preset maximum CBG number.

13. A HARQ-ACK codebook determination method for hybrid automatic repeat request acknowledgement (HARQ-ACK) is applied to a base station, and comprises the following steps:

14. The method of claim 13, wherein obtaining the first set of values comprises:

15. The method of claim 14, wherein the determining the first set of values according to numerology used by the ue comprises:

16. The method of claim 14, wherein the determining the first set of values according to numerology used by the ue comprises:

alternatively, the first and second electrodes may be,

17. The method of claim 14, wherein the determining the first set of values according to numerology used by the ue comprises:

18. The method of claim 17, wherein determining a second value based on BWP handoff time and numerology used by the user terminal comprises:

19. The method of claim 13, further comprising:

20. The method of claim 19, wherein the configuration signaling indicates each value in the first set of values or indicates an index corresponding to the first set of values.

21. The method of claim 19, wherein the configuration signaling carries a third value, and wherein the third value is one of the second value set, and the third value is used to determine a set of values in the second value set that are not greater than or less than the third value as the first value set.

22. The method of claim 13, wherein obtaining the first set of values comprises:

23. The method according to any one of claims 13 to 22, wherein the determining the number of bits of the HARQ-ACK codebook sent by the user equipment according to the first set of values comprises:

when the user terminal does not support BWP handover on one carrier:

24. The method of claim 23,

25. A user terminal, comprising:

the acquisition module is used for acquiring a first value set; the first value set is a proper subset of a second value set, and the second value set is a full set of scheduling timing relation values from a preset Physical Downlink Control Channel (PDCCH) to a Physical Downlink Shared Channel (PDSCH);

26. A base station, comprising:

27. A user terminal, comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor,

the transceiver is used for acquiring a first value set; the first value set is a proper subset of a second value set, and the second value set is a full set of scheduling timing relation values from a preset Physical Downlink Control Channel (PDCCH) to a Physical Downlink Shared Channel (PDSCH);

alternatively, the first and second electrodes may be,

the processor is used for acquiring a first value set; the first value set is a proper subset of a second value set, and the second value set is a full set of scheduling timing relation values from a preset Physical Downlink Control Channel (PDCCH) to a Physical Downlink Shared Channel (PDSCH); and determining the HARQ-ACK codebook according to the first value set.

28. The user terminal of claim 27,

the transceiver is further configured to determine the first value set according to a baseband parameter numerology used by the user terminal;

alternatively, the first and second electrodes may be,

29. The user terminal of claim 28,

the transceiver is further configured to determine, as the first value set, a value set corresponding to numerology used by the user terminal based on a correspondence between preset numerology and the value set; wherein, the value set corresponding to any numerology is a subset of the second value set;

alternatively, the first and second electrodes may be,

30. The user terminal of claim 28,

the transceiver is further configured to determine, based on a correspondence between a preset numerology and a value, a numerology used by the user terminal or a value corresponding to the numerology of which the number is not less than the numerology used by the user terminal; wherein, the value corresponding to any numerology is at least one value in the second value set; determining a first value set; wherein, the first value set includes the rest values or numbers except the value corresponding to the numerology used by the user terminal in the second value set, and the rest values except the value corresponding to the numerology used by the user terminal are not less than the rest values except the value corresponding to the numerology used by the user terminal;

alternatively, the first and second electrodes may be,

31. The user terminal of claim 28,

said transceiver further configured to determine a second value based on a bandwidth part BWP handover time and numerology used by said user terminal; wherein the second value is one value in the second value set; determining the first value set according to the second value; the first value set comprises values which are not more than or less than the second value in the second value set;

alternatively, the first and second electrodes may be,

32. The user terminal of claim 31,

the transceiver is further configured to determine slot number Y according to BWP handover time and numerology used by the user terminal; wherein Y is an integer greater than or equal to 1; determining a basic value set corresponding to the numerology used by the user terminal based on a preset corresponding relationship between the numerology and the basic value set; wherein, the basic value set corresponding to any numerology includes values that do not support BWP handover in the second value set under any numerology; respectively calculating the sum of each value in a basic value set corresponding to numerology used by the user terminal and Y, and determining the maximum sum of the calculated sum; determining the value with the minimum value in the values which are not less than the determined sum value in the second value set as a second value;

alternatively, the first and second electrodes may be,

33. The user terminal of claim 27,

the transceiver is further configured to receive a configuration signaling sent by a base station; determining the first value set according to the configuration signaling;

alternatively, the first and second electrodes may be,

34. The ue of claim 33, wherein the configuration signaling carries each value in the first value set or an index corresponding to the first value set;

alternatively, the first and second electrodes may be,

35. The ue of claim 33, wherein the configuration signaling carries a third value; wherein the third value is one value in the second value set;

alternatively, the first and second electrodes may be,

36. The user terminal of claim 27,

the transceiver is further configured to determine a first set of values; the first value set comprises M values with the minimum values in the second value set, M is smaller than the total number of the values in the second value set, and M is an integer greater than or equal to 1;

alternatively, the first and second electrodes may be,

37. The ue of any one of claims 27 to 36, wherein the processor is further configured to, when the ue does not support BWP handover on one carrier: determining an HARQ-ACK codebook according to the first value set; when the user terminal supports BWP handover on one carrier, for the one carrier: determining an HARQ-ACK codebook according to the first value set, and supplementing an A-bit HARQ-ACK on the basis of the determined HARQ-ACK codebook, wherein A is an integer greater than or equal to 1; or adding N fourth values to the first value set; the fourth value is a value which is not included in the first value set in the second value set, and N is an integer greater than or equal to 1; and determining the HARQ-ACK codebook corresponding to the carrier according to the first value set added with the fourth value.

38. The user terminal of claim 37,

39. A base station, comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor,

the processor is used for acquiring a first value set; the first value set is a proper subset of a second value set, and the second value set is a full set of scheduling timing relation values from a preset Physical Downlink Control Channel (PDCCH) to a Physical Downlink Shared Channel (PDSCH); and determining the bit number of the HARQ-ACK codebook sent by the user terminal according to the first value set.

40. The base station of claim 39, wherein the processor is further configured to determine the first set of values according to a baseband parameter numerology used by the user terminal.

41. The base station of claim 40, wherein the processor is further configured to determine, as the first value set, a value set corresponding to numerology used by the user terminal based on a preset correspondence between numerology and the value set; and the value set corresponding to any numerology is a subset of the second value set.

42. The base station of claim 40,

alternatively, the first and second electrodes may be,

43. The base station of claim 40, wherein the processor is further configured to determine a second value based on a bandwidth part BWP handoff time and numerology used by the user terminal; wherein the second value is one value in the second value set; determining the first value set according to the second value; the first value set comprises values which are not more than or less than the second value in the second value set.

44. The base station of claim 43, wherein the processor is further configured to determine a number of slot slots Y based on a BWP handoff time and numerology used by the user terminal; wherein Y is an integer greater than or equal to 1; determining a basic value set corresponding to the numerology used by the user terminal based on a preset corresponding relationship between the numerology and the basic value set; wherein, the basic value set corresponding to any numerology includes values that do not support BWP handover in the second value set under any numerology; respectively calculating the sum of each value in a basic value set corresponding to numerology used by the user terminal and Y, and determining the maximum sum of the calculated sum; and determining the value with the minimum value in the values which are not less than the determined sum value in the second value set as the second value.

45. The base station of claim 39, wherein the base station further comprises a transceiver;

46. The base station of claim 45, wherein the configuration signaling indicates each value in the first set of values or indicates an index corresponding to the first set of values.

47. The base station of claim 45, wherein the configuration signaling carries a third value, and the third value is one of the second value set, and the third value is used to determine a set of values in the second value set that are not greater than or less than the third value as the first value set.

48. The base station of claim 39, wherein the processor is further configured to determine a first set of values; the first value set comprises M values with the minimum values in the second value set, M is smaller than the total number of the values in the second value set, and M is an integer greater than or equal to 1.

49. The base station according to any of claims 39 to 48, wherein the processor is further configured to, when the user terminal does not support BWP handover on one carrier: determining the bit number of the HARQ-ACK codebook according to the first value set; when the user terminal supports BWP handover on one carrier, for the one carrier: determining the bit number of an HARQ-ACK codebook according to the first value set, and determining that the user terminal supplements A-bit HARQ-ACK on the basis of the determined HARQ-ACK codebook, wherein A is an integer greater than or equal to 1; or adding N fourth values to the first value set; the fourth value is a value which is not included in the first value set in the second value set, and N is an integer greater than or equal to 1; and determining the bit number of the HARQ-ACK codebook according to the first value set added with the fourth value.

50. The base station of claim 49,