CN115134918A

CN115134918A - Feedback method, related device and readable storage medium

Info

Publication number: CN115134918A
Application number: CN202110327010.6A
Authority: CN
Inventors: 曾超君; 李娜; 洪琪
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2022-09-30
Also published as: WO2022199688A1

Abstract

The application discloses a feedback method, related equipment and a readable storage medium, which belong to the technical field of communication, and the feedback method can comprise the following steps: a terminal receives first Downlink Control Information (DCI), wherein the first DCI is used for scheduling T Physical Downlink Shared Channels (PDSCHs); the terminal sends feedback information corresponding to R PDSCH subsets on M Physical Uplink Control Channels (PUCCHs); the R PDSCH subsets are obtained by dividing the T PDSCHs, T is an integer larger than 1, R is a positive integer, and M is a positive integer. According to the method and the device, the transmission of the feedback information corresponding to the T PDSCHs scheduled by the first DCI can be realized, and the feedback time delay of the feedback information can be shortened under the condition that the feedback information corresponding to the T PDSCHs is transmitted through a plurality of PUCCHs.

Description

Feedback method, related device and readable storage medium

Technical Field

The present application belongs to the field of communication technologies, and in particular, to a feedback method, a related device, and a readable storage medium.

Background

In order to fully utilize the carrier time domain resources, multiple-Physical Downlink Shared Channel (Multi-PDSCH) scheduling is introduced into the protocol. Multi-PDSCH scheduling refers to that a single Downlink Control Information (DCI) can support scheduling multiple PDSCH transmissions.

At present, there is no relevant solution for how to transmit Hybrid Automatic Repeat reQuest Acknowledgement (HARQ-ACK) information corresponding to multiple PDSCHs scheduled by a single DCI.

Disclosure of Invention

The embodiment of the application provides a feedback method, related equipment and a readable storage medium, which can solve the problem of transmission of feedback information corresponding to a plurality of PDSCHs scheduled by a single DCI.

In a first aspect, a feedback method is provided, which is applied to a terminal, and includes:

a terminal receives first Downlink Control Information (DCI), wherein the first DCI is used for scheduling T Physical Downlink Shared Channels (PDSCHs);

the terminal sends feedback information corresponding to R PDSCH subsets on M Physical Uplink Control Channels (PUCCHs);

the R PDSCH subsets are obtained by dividing the T PDSCHs, T is an integer larger than 1, and R and M are positive integers.

In a second aspect, a feedback method is provided, which is applied to a terminal, and includes:

the method comprises the steps that when a terminal detects that the bit number of third feedback information carried in a first time unit is larger than a second preset threshold value, a first part of feedback information included in the third feedback information is sent in the first time unit, and a second part of feedback information included in the third feedback information is sent in a second time unit;

and the second time unit is located after the first time unit, and the number of bits of the feedback information carried in the first time unit and the second time unit is less than or equal to the second preset threshold.

In a third aspect, a feedback method is provided, where the feedback method is applied to a network side device, and the method includes:

the method comprises the steps that network side equipment sends first Downlink Control Information (DCI), wherein the first DCI is used for scheduling T Physical Downlink Shared Channels (PDSCHs);

the network side equipment receives feedback information corresponding to R PDSCH subsets on M Physical Uplink Control Channels (PUCCHs);

wherein the R PDSCH subsets are obtained by dividing the T PDSCHs, T is an integer larger than 1, and R and M are positive integers

In a fourth aspect, a feedback method is provided, where the feedback method is applied to a network side device, and the method includes:

the method comprises the steps that under the condition that the fact that the bit number of third feedback information carried in a first time unit is larger than a second preset threshold value is detected, network side equipment sends first part of feedback information included in the third feedback information in the first time unit, and sends second part of feedback information included in the third feedback information in a second time unit;

wherein the second time unit is located after the first time unit, and the number of bits of the feedback information carried in the first time unit and the second time unit is less than or equal to the second preset threshold

In a fifth aspect, a feedback apparatus is provided, the feedback apparatus comprising:

a first receiving module, configured to receive first downlink control information DCI, where the first DCI is used to schedule T physical downlink shared channels PDSCH;

a first sending module, configured to send, by the terminal, feedback information corresponding to R PDSCH subsets on M physical uplink control channels PUCCH;

In a sixth aspect, there is provided a feedback apparatus comprising:

a second sending module, configured to send, in a first time unit, a first part of feedback information included in third feedback information and send, in a second time unit, a second part of feedback information included in the third feedback information when it is detected that a bit number of the third feedback information carried in the first time unit is greater than a second preset threshold;

In a seventh aspect, a feedback apparatus is provided, including:

a third sending module, configured to send first downlink control information DCI, where the first DCI is used to schedule T physical downlink shared channels PDSCH;

a seventh receiving module, configured to receive feedback information corresponding to the R PDSCH subsets on the M physical uplink control channels PUCCH;

In an eighth aspect, there is provided a feedback apparatus comprising:

an eighth receiving module, configured to send, in a first time unit, a first part of feedback information included in third feedback information and send, in a second time unit, a second part of feedback information included in the third feedback information when it is detected that a bit number of the third feedback information carried in the first time unit is greater than a second preset threshold;

In a ninth aspect, there is provided a terminal comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the method according to the first or second aspect.

A tenth aspect provides a terminal comprising a processor and a communication interface, wherein the communication interface is configured to perform any one of:

receiving first Downlink Control Information (DCI), wherein the first DCI is used for scheduling T Physical Downlink Shared Channels (PDSCHs); sending feedback information corresponding to R PDSCH subsets on M Physical Uplink Control Channels (PUCCHs); the R PDSCH subsets are obtained by dividing the T PDSCHs, T is an integer larger than 1, and R and M are positive integers;

under the condition that the bit number of third feedback information carried in a first time unit is detected to be larger than a second preset threshold value, sending a first part of feedback information included in the third feedback information in the first time unit, and sending a second part of feedback information included in the third feedback information in a second time unit; and the second time unit is located after the first time unit, and the number of bits of the feedback information carried in the first time unit and the second time unit is less than or equal to the second preset threshold.

In an eleventh aspect, a network side device is provided, which comprises a processor, a memory and a program or instructions stored on the memory and executable on the processor, and when executed by the processor, the program or instructions implement the steps of the method according to the third or fourth aspect.

In a twelfth aspect, a network-side device is provided, which includes a processor and a communication interface, where the communication interface is used for any one of:

sending first Downlink Control Information (DCI), wherein the first DCI is used for scheduling T Physical Downlink Shared Channels (PDSCHs); receiving feedback information corresponding to R PDSCH subsets on M Physical Uplink Control Channels (PUCCHs); the R PDSCH subsets are obtained by dividing the T PDSCHs, T is an integer larger than 1, and R and M are positive integers;

In a thirteenth aspect, there is provided a readable storage medium on which a program or instructions is stored, which program or instructions, when executed by a processor, implement the steps of the method as described in the first, second, third or fourth aspect.

In a thirteenth aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a program or instructions to implement the method according to the first, second, third or fourth aspect.

In a fourteenth aspect, there is provided a computer program/program product stored on a non-volatile storage medium, the program/program product being executable by at least one processor to perform steps as in the first, second, third or fourth aspects.

In this embodiment of the application, the T PDSCHs scheduled by the first DCI may be divided into R PDSCH subsets, and feedback information corresponding to the R PDSCH subsets may be sent through M PUCCHs. In this way, not only the transmission of the feedback information corresponding to the T PDSCHs scheduled by the first DCI is achieved, but also the feedback delay of the feedback information can be shortened when the feedback information corresponding to the T PDSCHs is transmitted through a plurality of PUCCHs.

Drawings

Fig. 1 is a schematic diagram of a wireless communication network provided by an embodiment of the present application;

fig. 2 is a flowchart of a feedback method provided in an embodiment of the present application;

FIG. 3 is a schematic transmission diagram provided by an embodiment of the present application;

fig. 4a is one of schematic diagrams of the division of PDSCH subsets provided by the embodiment of the present application;

fig. 4b is a second schematic diagram of the division of the PDSCH subset according to the embodiment of the present application;

fig. 4c is a third schematic diagram of the PDSCH subset division provided by the embodiment of the present application;

fig. 5 is a second flowchart of a feedback method provided in the embodiment of the present application;

FIG. 6 is a third flowchart of a feedback method provided in an embodiment of the present application;

FIG. 7 is a fourth flowchart of a feedback method provided in an embodiment of the present application;

FIG. 8 is a block diagram of a feedback device according to an embodiment of the present disclosure;

fig. 9 is a second structural diagram of a feedback device provided in the embodiment of the present application;

fig. 10 is a third structural diagram of a feedback device according to an embodiment of the present application;

fig. 11 is a fourth structural diagram of a feedback device according to an embodiment of the present application;

fig. 12 is one of the structural diagrams of a communication device provided in an embodiment of the present application;

fig. 13 is a block diagram of a terminal according to an embodiment of the present application;

fig. 14 is a structural diagram of a network-side device according to an embodiment of the present application;

Detailed Description

The technical solutions in the embodiments of the present application will be described below clearly with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived from the embodiments given herein by a person of ordinary skill in the art are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in other sequences than those illustrated or otherwise described herein, and that the terms "first" and "second" used herein generally refer to a class and do not limit the number of objects, for example, a first object can be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, but the techniques may also be applied to applications other than NR system applications, such as 6 th generation (6 th generation) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, the Wearable Device includes: smart watches, bracelets, earphones, glasses, and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base Station or a core network, where the Base Station may be referred to as a node B, an evolved node B, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a WLAN access Point, a WiFi node, a Transmit Receiving Point (TRP), or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but a specific type of the Base Station is not limited.

For convenience of understanding, some contents related to the embodiments of the present application are described below:

one, multiple-Physical Downlink Shared Channel (Multi-PDSCH) scheduling.

A New Radio (NR) deployed band may introduce New Subcarrier Spacing (SCS) including 480 kilohertz (kHz) and 960 kHz. For these newly introduced SCS, Physical Downlink Control Channel (PDCCH) monitoring needs to be adjusted or enhanced accordingly, for example, the UE is prevented from monitoring the PDCCH in each Slot (Slot) to reduce the implementation complexity of the UE. Accordingly, in order to fully utilize the carrier time domain resources, Multi-PDSCH scheduling and Multi-Physical Uplink Shared Channel (Multi-PUSCH) scheduling need to be studied/introduced.

Multi-PDSCH scheduling refers to that a single Downlink Control Information (DCI) can schedule multiple PDSCH transmissions at a time, and optionally, multiple PDSCH transmissions scheduled by a single DCI may be multiple PPDSCH transmissions on the same carrier. The PDSCHs may not overlap each other in the time domain. Each PDSCH may be confined to a single Slot and correspond to a respective Transport Block (TB), and a single TB may neither be jointly rate matched across multiple PDSCHs nor occupy multiple PDSCHs for repeated transmission.

And secondly, feeding back a Hybrid Automatic Repeat reQuest Acknowledgement (HARQ-ACK) timing sequence aiming at the scheduling of the Multi-PDSCH.

For Multi-PDSCH scheduling, its corresponding HARQ-ACK feedback needs to be considered.

In one case, optionally, a single K1 may be indicated in DCI for scheduling multiple PDSCHs, and a Slot where a single Physical Uplink Control Channel (PUCCH) is located is determined based on a Slot where an end time of a last PDSCH scheduled by the DCI is located and the indicated K1, where HARQ-ACK information corresponding to all PDSCHs scheduled by the DCI may be multiplexed on the PUCCH.

In another case, HARQ-ACK information corresponding to multiple PDSCHs scheduled by a single DCI may be multiplexed on multiple different PUCCHs.

The feedback method provided by the embodiments of the present application is described in detail below with reference to the accompanying drawings by using some embodiments and application scenarios thereof.

Referring to fig. 2, fig. 2 is a flowchart of a feedback method provided in an embodiment of the present application. The feedback method shown in fig. 2 may be performed by a terminal. As shown in fig. 2, the feedback method may include the steps of:

step 201, a terminal receives first downlink control information DCI, where the first DCI is used to schedule T physical downlink shared channels PDSCH.

Wherein T is an integer greater than 1. That is, the first DCI schedules at least two PDSCHs. In this embodiment, all PDSCHs scheduled by the first DCI may be regarded as one set of PDSCHs.

Step 202, the terminal sends feedback information corresponding to the R PDSCH subsets on the M physical uplink control channels PUCCH.

And the R PDSCH subsets are obtained by dividing the T PDSCHs, and the sum of R and the average M is a positive integer.

In the embodiment of the present application, the T PDSCHs may be divided based on a certain rule to obtain one or more (at least two) PDSCH subsets.

The feedback information corresponding to the R PDSCH subsets may be sent through M PUCCHs. M is equal to 1, or M is greater than or equal to 2. In the embodiment of the present application, the PUCCH has a correspondence relationship with a PDSCH subset corresponding to feedback information sent by the PUCCH. Such as: if PUCCH1 transmits feedback information corresponding to PDSCH subset 1, PUCCH1 may be considered to correspond to PDSCH subset 1.

In some embodiments, the relationship between R and M may be as follows:

case one, R is greater than M.

In this case, the feedback information of at least partially different PDSCH subsets of the R PDSCH subsets may be sent through the same PUCCH, for example, at least one target PUCCH exists in the M PUCCHs corresponding to L PDSCH subsets, where L is an integer greater than 1 and less than or equal to R, that is, the target PUCCH may simultaneously carry the feedback information corresponding to the L PDSCH subsets, and the feedback information corresponding to the L PDSCH subsets may be carried on the same PUCCH.

Case two, R is less than or equal to M.

In this case, each PUCCH of the M PUCCHs may be used to transmit feedback information corresponding to a part or all of the PDSCHs of one PDSCH subset of the R PDSCH subsets.

In the case that M is equal to R, feedback information of all PDSCHs of each of the R PDSCH subsets is transmitted in respective PUCCH, for example, the R PDSCH subsets are in one-to-one correspondence with the R PUCCHs, that is, feedback information corresponding to different PDSCH subsets of the R PDSCH subsets is transmitted through different PUCCHs of the R PUCCHs. In this case, each of the R PUCCHs is used to transmit feedback information corresponding to all PDSCHs of one of the R PDSCH subsets.

In the case that M is greater than R, feedback information of PDSCHs of at least a partial PDSCH subset of the R PDSCH subsets may be transmitted in different PUCCHs, for example, there is at least one first target PDSCH subset among the R PDSCH subsets corresponding to U PUCCHs of the M PUCCHs, where U is an integer greater than 1 and less than or equal to M, that is, the feedback information corresponding to the first target PDSCH subset is split and transmitted through the U PUCCHs, and each PUCCH of the U PUCCHs is used for transmitting feedback information corresponding to a partial PDSCH of the first target PDSCH subset.

As can be seen, in the embodiment of the present application, a PDSCH set scheduled by a single DCI may be divided into one to multiple PDSCH subsets according to a certain rule, and each PDSCH subset may transmit its corresponding feedback information on the same or different PUCCH. Alternatively, the feedback information may be expressed as HARQ-ACK information, but is not limited thereto.

For ease of understanding, please refer to fig. 3. In fig. 3, the PDCCH schedules a PDSCH set, the PDSCH set is divided into a PDSCH subset 1 and a PDSCH subset 2, and feedback information corresponding to the PDSCH subset 1 and the PDSCH subset 2 is respectively sent on the PUCCH in different slots.

In the feedback method of this embodiment, the T PDSCHs scheduled by the first DCI may be divided into R PDSCH subsets, and the feedback information corresponding to the R PDSCH subsets may be sent through M PUCCHs. Therefore, the transmission of the feedback information corresponding to the T PDSCHs scheduled by the first DCI is realized, the feedback time delay of the feedback information can be shortened under the condition that the feedback information corresponding to the T PDSCHs is transmitted through a plurality of PUCCHs, the number of the occupied Hybrid Automatic Repeat Request (HARQ) processes is reduced, and the feedback load on a single PUCCH is reduced.

The following describes the division of PDSCH subsets in the embodiments of the present application:

optionally, the R PDSCH subsets are divided based on a first rule, where the first rule is any one of:

the method comprises the following steps of 1, dividing a PDSCH subset based on the number of PDSCHs contained in a single PDSCH subset;

a division mode 2, dividing the PDSCH subsets based on the time unit number corresponding to a single PDSCH subset;

dividing a PDSCH subset based on the indication of the network side equipment in a dividing mode 3;

a division mode 4, dividing PDSCH subsets based on the processing time of PDSCH;

and 5, dividing the PDSCH subset based on the number of first objects, wherein the first objects are the PDSCH subset or first information indicated by network side equipment, and the first information is used for determining a feedback time domain position corresponding to the PDSCH subset.

It can be understood that, in order to improve the reliability of sending and receiving the feedback information, the terminal and the network side device have a consistent understanding of the first rule. In practical applications, the first rule may be predetermined by a protocol or configured by a network side device, and the like, and may be determined according to practical situations, which is not limited in this embodiment of the present application.

The following explains the above division modes:

firstly, a dividing mode 1: the PDSCH subsets are divided based on the number of PDSCHs contained in a single PDSCH subset.

In the division manner 1, the number X of PDSCHs included in a single PDSCH subset may be predetermined. The embodiment of the present application does not limit the determination manner of X. Alternatively, X may be determined by any one of: agreement conventions (otherwise known as agreement provisions); the network side equipment is configured through high-level signaling and the like; and DCI indication.

In a scenario where X is agreed by a protocol or configured by a network-side device through high-level signaling, etc., in a first implementation, X applied to each SCS may be specified by the protocol or configured by the network-side device, that is, a corresponding X may be configured for each SCS, and X may correspond to SCS one-to-one. In a second implementation, a reference X for a certain reference SCS application may be specified by a protocol or configured on the network side, and xs applied by other SCS applications may be converted based on the combination of the reference SCS and the reference X, for example, may be converted based on a slot length or a subcarrier width corresponding to each SCS. For the second implementation, it is exemplary: assuming that the network configures reference X ═ 2 for the reference SCS120kHz, X ═ 2 ═ 4 ═ 8 for SCS 480kHz, the conversion factor 4 here can be obtained based on the subcarrier width ratio 480/120 ═ 4, or can be considered as the ratio of the slot lengths corresponding to these two SCS types.

In a scenario where X is indicated by DCI, in a first implementation, DCI may directly indicate a value of X. In a second implementation manner, the high layer signaling may pre-configure an X value list, where the X value list includes one or more indexes or numbers of X values, and the DCI may indicate a certain index or number in the X value list to apply the X value corresponding to the index/number. In addition, it should be noted that the DCI for indicating X and the first DCI may be the same DCI or different DCIs, which may be specifically determined according to actual situations.

Alternatively, the T PDSCHs scheduled by the first DCI may be arranged from front to back (or from early to late) based on the PDSCH starting time, and assuming that there is no time domain overlap between any two adjacent PDSCHs, the PDSCH subsets may be divided sequentially from front to back based on the ordered PDSCH queues corresponding to the T PDSCHs, but is not limited thereto.

After determining the number X of PDSCHs included in a single PDSCH subset, before dividing the PDSCH subset, it may be determined whether T PDSCHs scheduled by the first DCI are divisible by X to divide the PDSCH subset based on the determination result.

If the T PDSCHs can be divided by X, the T PDSCHs can be divided into T/X PDSCH subsets, and the number of PDSCHs included in each PDSCH subset is equal to X.

If the T PDSCHs cannot divide X exactly, the T PDSCHs may be divided into a +1 PDSCH subsets, or the T PDSCH subsets may be divided into a PDSCH subsets, where a is the quotient of T/X.

In a first implementation manner of dividing the T PDSCHs into a +1 PDSCH subsets, one PDSCH subset of the a +1 PDSCH subsets includes a number of PDSCHs equal to a remainder of T/X, which is smaller than X; the other PDSCH subsets include equal number of PDSCHs, X. Such as: for the T PDSCHs scheduled by the first DCI, starting from the first PDSCH, every X PDSCHs may be divided into one PDSCH subset, and when the number of PDSCHs remaining in the set is ≧ X, the PDSCHs are divided into a single PDSCH subset.

In an implementation two of dividing the T PDSCH subsets into a PDSCH subsets, one PDSCH subset of the a PDSCH subsets includes a number of PDSCHs equal to the sum of X and the remainder of T/X, the number of PDSCHs X ═ N <2 × X; the other PDSCH subsets include an equal number of PDSCHs, X. Such as: for the T PDSCHs scheduled by the first DCI, every X PDSCHs may be divided into one PDSCH subset, starting with the first PDSCH, and when the number of PDSCHs remaining in the set is < 2X, the PDSCHs are divided into a single PDSCH subset. Thus, compared with the first implementation mode, the number of the PDSCHs contained in the last partitioned PDSCH subset can be avoided to be less, and one PDSCH subset is reduced, so that the transmission resource of the feedback information can be saved.

Second, division mode 2: the PDSCH subsets are divided based on the number of time units corresponding to a single PDSCH subset.

The main differences between the division scheme 2 and the division scheme 1 are: it is predetermined that the objects of the individual PDSCH subsets are different. In the division mode 1, the number X of PDSCHs included in a single PDSCH subset is predetermined; in the division manner 2, the number Y of time units corresponding to a single PDSCH subset is predetermined. In practice, the determination method of Y is the same as that of X, and reference may be made to the foregoing description for details, which are not repeated herein.

In practical applications, the time units occupied by the T PDSCHs may be continuous or discontinuous. Under the condition that time units occupied by the T PDSCHs are continuous, the time units spanned by the T PDSCHs are equal to the time units occupied by the T PDSCHs; and under the condition that the time units occupied by the T PDSCHs are discontinuous, the time units spanned by the T PDSCHs are larger than the time units occupied by the T PDSCHs.

If a certain time unit includes at least one PDSCH of the T PDSCHs, the time unit may be considered as a time unit occupied by the T PDSCHs. Alternatively, the time unit may be, but is not limited to, a Slot, a Sub-Slot (Sub-Slot), a Symbol (Symbol), or an absolute time unit (i.e., a time unit introduced by design in a non-communication system, such as a millisecond (ms)), where the Slot/Sub-Slot may be a downlink Slot/Sub-Slot or an uplink Slot/Sub-Slot.

The time units spanned by the T PDSCHs include the first time unit and the last time unit occupied by the T PDSCHs, and all time units between the first time unit and the last time unit, such as: assuming that the first time unit occupied by the T PDSCHs is Slot1 and the last time unit is Slot5, the time units spanned by the T PDSCHs are slots 1 to 5, and the number of the time units spanned by the T PDSCHs is 5.

In the division manner 2, optionally, the number of time units corresponding to the single PDSCH subset may be any of the following:

a) the number of time units occupied by a single PDSCH subset;

b) the number of time units spanned by a single PDSCH subset.

In a), Y is the number of time units occupied by a single PDSCH subset. In this case, the number of time units occupied by a single PDSCH subset is predetermined, and thus, the PDSCH in every occupied Y time units of the T PDSCH can be divided into a PDSCH subset.

In particular implementations, when dividing the PDSCH subset, the PDSCH subset is divided based on a set of (contiguous or non-contiguous) time units occupied by the T PDSCHs. If the time units occupied by the T PDSCHs are not consecutive, the unoccupied time units in the time units spanned by the T PDSCHs can be ignored.

In practical applications, the time units occupied by the T PDSCHs may be ordered according to a certain rule (e.g., from front to back) based on a certain time (e.g., a starting time) of the time units, and then used for dividing the PDSCH subsets.

In b), Y is the number of time units spanned by a single PDSCH subset. In this case, the number of time units spanned by a single PDSCH subset is predetermined, and thus, the PDSCH in each spanned Y time units of the T PDSCH may be divided into one PDSCH subset.

In particular implementations, when partitioning the PDSCH subsets, the PDSCH subsets are partitioned based on a set of consecutive time units spanned by the PDSCH set. If the time units occupied by the T PDSCHs are not consecutive, the time units not containing scheduled PDSCHs are still considered when dividing the PDSCH subsets.

It should be noted that, in b), it is assumed that the time unit spanned by the T PDSCHs includes one or more first time lengths, each of the first time lengths includes Y non-repeating consecutive time units, and if there is one first time length that does not include any PDSCH, the Y consecutive time units included in the first time length may not correspond to any PDSCH subset. Such as: assuming that the T PDSCHs span slots 1-6, occupying

slots

1, 2, 5, Y being 2, then PDSCHs within

slots

1 and 2 may be divided into PDSCH subset 1; since no PDSCH is contained within

slots

3 and 4,

slots

3 and 4 do not correspond to any PDSCH subset; since PDSCH is contained within Slot5, PDSCH within Slot5 may be divided into PDSCH subset 2, and as can be seen, the T PDSCH are divided into two PDSCH subsets.

In practical application, for the case that the time units occupied by the T PDSCHs are consecutive, the division result of the PDSCH subset based on the number of time units occupied by the PDSCH subset is the same as the division result of the PDSCH subset based on the number of time units spanned by a single PDSCH subset. For ease of understanding, the following is illustrated in connection with FIG. 4 a:

in fig. 4a, the PDSCH set scheduled by the first DCI spans 4 slots, actually occupying 4 slots. Let Y be 2.

Since the time units occupied by the PDSCH set are consecutive, whether the PDSCH subset is divided based on the number of time units occupied by the PDSCH subset or the number of time units spanned by a single PDSCH subset, when the PDSCH subset is divided, PDSCH1, PDSCH2 and PDSCH3 in slot1 and slot2 can be divided into PDSCH subset 1, and PDSCH4, PDSCH5, PDSCH 6 and PDSCH 7 in slot3 and slot4 can be divided into PDSCH subset 2.

For the case that the time units occupied by the T PDSCHs are discontinuous, the division result of the PDSCH subset based on the number of time units occupied by the PDSCH subset is different from the division result of the PDSCH subset based on the number of time units spanned by a single PDSCH subset. For ease of understanding, the following is illustrated in connection with fig. 4b and 4 c:

in fig. 4b and 4c, the PDSCH set scheduled by the first DCI spans 5 slots, but actually occupies only 4 slots. Let Y be 2.

Fig. 4b divides the PDSCH subset based on the number of time units occupied by the PDSCH subset, and therefore the 4 th slot is ignored. In dividing the PDSCH subset, PDSCH1, PDSCH2, and PDSCH3 in slot1 and slot2 are divided into PDSCH subset 1, and PDSCH4, PDSCH5, PDSCH 6, and PDSCH 7 in slot3 and slot5 are divided into PDSCH subset 2.

Figure 4c divides the PDSCH subsets based on the number of time units spanned by a single PDSCH subset, so the 4 th slot is not ignored. In dividing the PDSCH subset, PDSCH1, PDSCH2 and PDSCH3 in slot1 and slot2 are divided into PDSCH subset 1, PDSCH4 in slot3 and slot4 (not including any scheduled PDSCH) is classified into PDSCH subset 2, and PDSCH5, PDSCH 6 and PDSCH 7 in slot5 are divided into PDSCH subset 3.

Thirdly, a dividing mode 3: the PDSCH subsets are partitioned based on the indication of the network side device.

In the division manner 3, the network side device may, but is not limited to, indicate the division of the PDSCH subset by at least one of the following: a Time Domain Resource Assignment Table (TDRA Table); the DCI is specifically described as follows:

division mode 3-1: and the network side equipment indicates the division of the PDSCH subset through the TDRA Table.

Optionally, before the terminal receives the first downlink control information DCI, the method further includes:

the terminal receives a time domain resource allocation table, wherein the time domain resource allocation table comprises at least one row, each row comprises at least one time domain resource allocation record, and the time domain resource allocation records correspond to PDSCHs one by one;

the first DCI indicates an ith row of the time domain resource allocation table, and is used for scheduling T PDSCHs corresponding to T time domain resource allocation records included in the ith row, wherein i is a natural number;

the dividing the PDSCH subset based on the indication of the network side equipment comprises the following steps:

dividing the PDSCH subset based on a second object included in the ith row.

In practical applications, the TDRA Table may be carried in a higher layer signaling, such as Radio Resource Control (RRC) signaling, but is not limited thereto.

Because the time domain resource allocation records correspond to the PDSCHs one by one, the first DCI may implement scheduling of the PDSCHs by indicating the ith row of the time domain resource allocation table, where the PDSCH scheduled by the first DCI is the T PDSCHs corresponding to the T time domain resource allocation records included in the ith row.

In a specific implementation, the first DCI may indicate the ith row through a Time domain resource allocation (Time domain resource allocation) field, but the first DCI is not limited to indicate the ith row. The time domain resource allocation record may be represented by any one of: start and Length Indicator Value (SLIV); start (S) and length (L). In the following description, the time domain resource allocation record is described by using SLIV as an example, but the specific description manner of the time domain resource allocation record is not limited thereby.

In the division manner 3-1, the TDRA Table may indicate the division of the PDSCH subset through an explicit field or an implicit rule when configuring each row. Accordingly, the first DCI may divide the PDSCH subset based on the second object of the ith row when the ith row is indicated.

Optionally, the second object may be any one of:

first configuration information, configured to configure a PDSCH subset number (the number may also be referred to as an index or a subscript, etc.) corresponding to each time domain resource allocation record in the ith row;

second configuration information, configured to configure an indication bit corresponding to each time domain resource allocation record in the ith row, where the indication bit corresponding to the first time domain resource allocation record is used to indicate whether the first time domain resource allocation record and the second time domain resource allocation record belong to the same PDSCH subset, the second time domain resource allocation record is a previous time domain resource allocation record of the first time domain resource allocation record, and the first time domain resource allocation record is any one of the T time domain resource allocation records except the first time domain resource allocation record;

third configuration information, configured to configure all time domain resource allocation record numbers corresponding to the PDSCH subsets;

the fourth configuration information is used for configuring a time domain resource allocation record number corresponding to a first PDSCH of each PDSCH subset, wherein the first PDSCH is a first PDSCH or a last PDSCH of the PDSCH subset;

the T time domain resource allocation records the continuity of time units occupied by the corresponding PDSCH;

and fifth configuration information, configured to configure R first parameters, where the first parameters correspond to at least one PDSCH, and all PDSCHs corresponding to each first parameter constitute a PDSCH subset.

The concrete description is as follows:

when the second object is the first configuration information, the PDSCH corresponding to all SLIVs corresponding to the same PDSCH subset number may be divided into one PDSCH subset.

In a case that the second object is the second configuration information, the indication bit may have two values. When the value of the indicator bit corresponding to a certain SLIV is inverted with respect to the value of the indicator bit corresponding to the previous SLIV, that is, different, starting from the inverted SLIV until the next inverted previous SLIV, the PDSCH corresponding to the SLIVs with consecutive numbers may be divided into a PDSCH subset. Such as: assuming that two values of the indication bits are 0 and 1, and the indication bit sequence in the ith row is 00111000, 2 PDSCHs corresponding to the 1 st and 2 nd SLIVs may be divided into a

PDSCH subset

1, 3 PDSCHs corresponding to the 3 rd, 4 th and 5 th SLIVs may be divided into a

PDSCH subset

2, and 3 PDSCHs corresponding to the 6 th, 7 th and 8 th SLIVs may be divided into a PDSCH subset 3.

When the second object is the third configuration information, for the ith row, the time domain resource allocation record numbers corresponding to the PDSCH subsets configured by the third information are all numbers within the range of the time domain resource allocation record included in the ith row, for example, when the number is started from 0, the number 0 corresponds to the first time domain resource allocation record included in the ith row, when the number is started from 1, the number 1 corresponds to the first time domain resource allocation record included in the ith row, and the other numbers correspond to the time domain resource allocation records in the ith row, and so on. In this case, PDSCHs corresponding to all SLIV numbers corresponding to the same PDSCH subset may be divided into one PDSCH subset.

When the second object is the fourth configuration information, the SLIV numbers indicated by the fourth configuration information may be arranged in order from small to large, and the SLIV numbers between two adjacent SLIV numbers in the queue and the PDSCH corresponding to a target SLIV number of the two SLIV numbers are divided into a PDSCH subset, where, when the first PDSCH is the first PDSCH of the PDSCH subset, the target SLIV number is the smaller SLIV number of the two SLIV numbers; and when the first PDSCH is the last PDSCH of the PDSCH subset, the target SLIV number is the larger SLIV number of the two SLIV numbers. Such as: taking the first PDSCH as the first PDSCH of the PDSCH subset as an example, assuming that the ith row includes 8 SLIVs, and the time domain resource allocation record numbers corresponding to the first PDSCH of each PDSCH subset configured by the fourth configuration information are SLIV number 1, SLIV number 3, and SLIV number 6, respectively, then 2 PDSCHs corresponding to SLIV number 1 and SLIV number 2 may be divided into

PDSCH subset

1, 3 PDSCHs corresponding to SLIV number 3, SLIV number 4, and SLIV number 5 may be divided into

PDSCH subset

2, and 3 PDSCHs corresponding to SLIV number 6, SLIV number 7, and SLIV number 8 may be divided into PDSCH subset 3.

It should be noted that, in a case that the first PDSCH is a first PDSCH of the PDSCH subset, a time domain resource allocation record number corresponding to the first PDSCH of the first PDSCH subset may be omitted, and PDSCHs included in the first PDSCH subset may be derived based on other PDSCH subsets, for example, assuming that the first PDSCH subset always includes a first PDSCH in the PDSCH sets corresponding to the subsets, the first PDSCH subset may be derived based on a PDSCH included in the second PDSCH subset; in the case that the first PDSCH is the last PDSCH of the PDSCH subset, the time domain resource allocation record number corresponding to the last PDSCH of the last PDSCH subset may be omitted, and the PDSCH included in the last PDSCH subset may be derived based on other PDSCH subsets, for example, the last PDSCH subset may be derived based on the PDSCH included in the second last PDSCH subset, assuming that the last PDSCH subset always includes the last PDSCH in the PDSCH sets corresponding to these subsets. Thus, the information indicated by the TDRA Table can be reduced, and the signaling overhead can be saved.

Under the condition that the second object is the continuity of the time units occupied by the PDSCHs corresponding to the T time domain resource allocation records, the T PDSCHs may be sequentially numbered according to the sequence from first to last of the occupied first time units or last time units, and in the PDSCHs included in the same PDSCH subset obtained by division, the interval between the time units occupied by any two PDSCHs with adjacent numbers does not exceed a threshold, where the threshold may be greater than or equal to 0, and may be specifically set according to an actual situation, which is not limited in the embodiment of the present application. Here, the interval between time units occupied by any two numbered adjacent PDSCHs may be understood as an interval between the last time unit occupied by the previous PDSCH and the first time unit occupied by the next PDSCH. The unit of the threshold value may be the time unit. The time unit may be a symbol, or a time slot, or a sub-time slot, which is not limited herein.

Such as: it is assumed that Z intervals (gaps) exist in time units occupied by the T PDSCHs, and S gaps among the Z gaps are larger than 1 time unit, where Z is a positive integer and S is a natural number less than or equal to Z. Then, when the threshold value is equal to 0, the T PDSCHs may be divided into Z +1 PDSCH subsets. When the threshold value is equal to 1, the T PDSCHs may be divided into S +1 PDSCH subsets.

In a case where the second object is the fifth configuration information, the first parameter may be K0 or any other parameter. The following description will be made with K0 representing the first parameter, but the expression of the first parameter is not limited thereto. When configuring each row of the TDRA Table, one or more K0 may be configured in each row, and each K0 configures one or more SLIV/PDSCH correspondingly. In a specific implementation, all PDSCHs corresponding to each K0 may be divided into a subset of PDSCHs.

Division mode 3-2: and the network side equipment indicates the division of the PDSCH subset through the DCI.

In practical applications, the DCI indicating the division of the PDSCH subset and the first DCI may be the same DCI or different DCIs. In the following description, the DCI indicating the division of the PDSCH subset is the same DCI as the first DCI.

Optionally, the dividing the PDSCH subset based on the indication of the network side device includes:

the first DCI indicates third information, the third information being any one of:

recording the number of a time domain resource allocation record corresponding to a first PDSCH of each PDSCH subset, wherein the first PDSCH is the first PDSCH or the last PDSCH of the PDSCH subset;

the number of PDSCHs each PDSCH subset includes.

Division mode 3-2-1: and the third information is a time domain resource allocation record number corresponding to the first PDSCH of each PDSCH subset.

The division mode is the same as the division mode of the second object included in the ith row based on the TDRA Table for dividing the PDSCH subset, and the difference is that: the time domain resource allocation record numbers corresponding to the first PDSCH of each PDSCH subset are indicated in different manners, and therefore, reference may be made to the foregoing description for specific implementation manners, which is not described herein again.

Optionally, the time domain resource allocation record number corresponding to the first PDSCH of each PDSCH subset may be indicated by a different first indication field in the first DCI. In practical application, the number of the first indication field carried by the first DCI may be specified by a protocol or configured by a network side device, the number of bits corresponding to the first indication field may be specified by the protocol or configured by the network side device, or derived based on the maximum number of PDSCHs corresponding to each Row in the TDRA Table (for example, the number of bits is ceiling (log 2) (Max _ PDSCH _ Num _ Per _ Row)), and Max _ PDSCH _ Num _ Per _ Row is the maximum number of PDSCHs corresponding to each Row in the TDRA Table.

For ease of understanding, examples are illustrated below:

assuming that the PDSCH scheduled by each DCI is divided into at most two PDSCH subsets by protocol specification or network configuration, there is a single said first indication field in the downlink scheduling DCI, which may indicate the index of the first PDSCH of the second PDSCH subset. If the value of the first indication field is a special value (e.g. 0), the first indication field may be used to indicate that there is no second PDSCH subset, that is, the PDSCH set scheduled by the downlink scheduling DCI does not divide the PDSCH subset, or the PDSCHs in the PDSCH set all correspond to the first PDSCH subset.

The division mode is 3-2-2: the third information is the number of PDSCHs included in each PDSCH subset.

In this division manner, the first DCI may directly and sequentially indicate the number of PDSCHs corresponding to each PDSCH subset (or each PDSCH subset except the last PDSCH subset). When the PDSCH subsets are divided, the PDSCH subsets may be divided according to the number of PDSCHs included in each PDSCH subset indicated by the first DCI, so that the number of PDSCHs included in each divided PDSCH subset is the same as that indicated by the first DCI.

Optionally, the number of PDSCHs included in each PDSCH subset may be indicated by a different second indication field in the first DCI, and a determination manner of the number of the second indication fields carried in the first DCI and the corresponding bit number may be the same as that of the first indication field, which may specifically refer to the foregoing description and is not described herein again.

the terminal receives a PDSCH subset partition information list, wherein the PDSCH subset partition information list comprises at least one PDSCH subset partition mode, and each PDSCH subset partition mode indicates one third information;

wherein the first DCI indicates a first PDSCH subset partitioning manner of the PDSCH subset partitioning information list, and the R PDSCH subsets are obtained by partitioning based on the third information indicated by the first PDSCH subset partitioning manner.

In this optional embodiment, the network side device may pre-configure a PDSCH subset partition information list, and each PDSCH subset partition manner in the PDSCH subset partition information list may indicate one third information. In this way, the first DCI may indicate that the PDSCH subset is divided based on the third information indicated by the PDSCH subset dividing manner by indicating one PDSCH subset dividing manner in the PDSCH subset dividing information list, so that the amount of information carried by the first DCI may be reduced, and the number of indicated bits of the first DCI may be reduced.

And fourthly, a dividing mode 4: the PDSCH subsets are divided based on the processing time of the PDSCH.

In the division manner 4, one or more processing time requirements may be set, and PDSCHs that meet the same processing time requirement in the PDSCHs scheduled by the first DCI are divided into the same PDSCH subset. Such as: assuming that only one processing time requirement is set, the T PDSCHs scheduled by the first DCI may be divided into at most two PDSCH subsets based on whether the PDSCH scheduled by the first DCI meets the processing time requirement: and dividing the PDSCH which meets the processing time requirement into a first PDSCH subset, and dividing the PDSCH which does not meet the processing time requirement into a second PDSCH subset.

Fifthly, a dividing mode 5: the PDSCH subset is divided based on the number of first objects.

In the dividing manner 5, the number N of the first objects may be predetermined, and the embodiment of the present application does not limit the determination manner of N. Alternatively, N may be determined by any one of: agreement conventions (otherwise known as agreement provisions); the network side equipment is configured through high-level signaling and the like; and DCI indication.

In this division, the PDSCH set scheduled by a single DCI may be uniformly divided into N PDSCH subsets based on PDSCH granularity, or based on spanning/occupied time unit granularity, or uniformly divided into N PDSCH subsets as much as possible. For example, assuming based on PDSCH granularity, when T is not divisible by N, then for the first N1-T mod N PDSCH subsets, each PDSCH subset may contain ceiling (T/N) PDSCHs, and for the last N2-N1 PDSCH subsets, each PDSCH subset may contain floor (T/N) PDSCHs; when T is divisible by N, each PDSCH subset contains T/N PDSCHs for N PDSCH subsets.

The first object may be a PDSCH subset or first information indicated by a network side device, where the first information is used to determine a feedback time domain position corresponding to the PDSCH subset. In practical applications, the first information may specifically be, but is not limited to, a time offset value K1 used for determining a feedback time domain position corresponding to the PPDSCH subset.

In this embodiment of the application, the M PUCCHs may be determined based on R PDSCH subsets corresponding to the T PDSCHs, and each PUCCH may be determined based on its corresponding PDSCH subset, which is specifically described as follows:

optionally, after the terminal receives the first downlink control information DCI, before the terminal sends the feedback information corresponding to the R PDSCH subsets on the M physical uplink control channels PUCCH, the method further includes:

the terminal determines a first PUCCH according to first information and second information corresponding to a first PDSCH subset, wherein the first PUCCH is used for sending feedback information corresponding to the first PDSCH subset;

the first information is used for determining a feedback time domain position corresponding to a PDSCH subset, the second information is used for determining a feedback PUCCH resource corresponding to the PDSCH subset, and the first PDSCH subset is any one PDSCH subset in the R PDSCH subsets. In practical applications, the first information may be represented as K1, and the second information may be represented as a PUCCH Resource Indicator (PRI), but is not limited thereto. For convenience of understanding, the first information is denoted by K1, and the second information is denoted by PRI, but the first information and the second information are not limited in their manifestations.

In this alternative embodiment, each PUCCH is determined based on K1 and PRI corresponding to its corresponding PDSCH subset.

In specific implementation, considering that the feedback PUCCH resource corresponding to each PDSCH subset is located in the feedback time domain position corresponding to the feedback PUCCH resource, after the terminal determines the R PDSCH subsets, the terminal may determine the feedback time domain position corresponding to each PDSCH subset, that is, the time domain position where the PUCCH carrying the feedback information corresponding to each PDSCH subset is located, according to K1 corresponding to each PDSCH subset. Then, according to the PRI corresponding to each PDSCH subset, a feedback PUCCH resource of each PDSCH subset in its corresponding feedback time domain position, that is, a PUCCH used for transmitting feedback information corresponding to each PDSCH subset, may be determined. Up to this point, the specific location of the PUCCH corresponding to each PDSCH subset may be determined.

Such as: assuming that the feedback time domain position corresponding to the PDSCH subset 1 is Slot1, then the feedback PUCCH resource corresponding to the PDSCH subset 1 is located in Slot 1; assuming that the feedback PUCCH resource corresponding to PDSCH subset 1 is the second PUCCH in Slot1, the terminal may send the feedback information corresponding to PDSCH subset on the second PUCCH in Slot 1.

In practical application, the feedback time domain position corresponding to each PDSCH subset is determined by combining the K1 starting reference point and the K1 corresponding to each PDSCH subset. In an embodiment of the present application, in an implementation manner, the K1 starting reference point corresponding to each PDSCH subset may adopt a common K1 starting reference point, and the common K1 starting reference point may be a Slot/Sub-Slot where a last PDSCH scheduled by DCI is located (last) or a Slot/Sub-Slot where an end time of the last PDSCH is located. The Slot or Sub-Slot here may be the Slot or Sub-Slot numbered in the upstream direction. In another implementation, the K1 starting reference points corresponding to the PDSCH subsets may adopt respective K1 starting reference points, and the respective K1 starting reference points may be (last) slots/Sub-slots where a last PDSCH included in each PDSCH subset is located, or slots/Sub-slots where an end time of the last PDSCH is located, which may be determined specifically according to actual situations, and this is not limited in this embodiment of the present application.

In the embodiment of the present application, K1 and PRI corresponding to each PDSCH subset may be determined in various ways, which are specifically described as follows:

first, determination of K1.

When implemented, K1 may be indicated by DCI. In practical applications, the DCI indicating K1, that is, the second DCI and the first DCI may be the same DCI or different DCIs, which may be determined specifically according to practical situations, and this is not limited in this embodiment of the present application.

Optionally, before the terminal determines the first PUCCH according to the first information and the second information corresponding to the first PDSCH subset, the method further includes:

the terminal receives a second DCI;

the terminal determines the first information corresponding to the first PDSCH subset according to the second DCI;

wherein the second DCI is to indicate any one of:

one of said first information;

the first information corresponding to each PDSCH subset.

Determination of K1 method 1: the second DCI indicates one K1.

In this case, optionally, in a case where the second DCI indicates one piece of the first information, the first information indicated by the second DCI corresponds to any one of: each PDSCH subset of the R PDSCH subsets; one PDSCH subset of the R PDSCH subsets.

Where a single K1 indicated by the second DCI corresponds to each PDSCH subset of the R PDSCH subsets, a single K1 indicated by the second DCI may be applied to each PDSCH subset. In practical applications, when each PDSCH subset adopts a respective K1 starting reference point, a single K1 indicated by the second DCI may correspond to each PDSCH subset of the R PDSCH subsets, and in this case, since the starting reference points of K1 corresponding to each PDSCH subset may be different, the PUCCH in different Slot/Sub-Slot may actually correspond.

In the case that the single K1 indicated by the second DCI corresponds to one PDSCH subset (denoted as a second target PDSCH subset) of the R PDSCH subsets, the single K1 indicated by the second DCI may be applied to the second target PDSCH subset. The second target PDSCH subset may be the first, last or designated PDSCH subset of the R PDSCH subsets, which may be determined specifically according to actual situations, and is not limited in this embodiment of the present application.

K1 corresponding to PDSCH subsets of the R PDSCH subsets other than the second target PDSCH subset may be determined based on K1 corresponding to the second PDSCH subset.

Alternatively, K1 corresponding to other PDSCH subsets may be sequentially incremented/decremented on the basis of the indicated single K1 based on the subset index. Specifically, when a single K1 indicated in the DCI is applied to the designated PDSCH subset, K1 corresponding to a PDSCH subset having a smaller number/index than that of the designated PDSCH subset may be determined in a sequentially decreasing manner, and K1 corresponding to a PDSCH subset having a larger number/index than that of the designated PDSCH subset may be determined in a sequentially increasing manner. The value of the increment/decrement step can be determined by protocol specification, by higher layer configuration or based on preset rules, such as: the step size of the increment/decrement may be 1, but is not limited thereto.

When determining K1 corresponding to other PDSCH subsets based on the increment/decrement rule, if K1 corresponding to a certain determined PDSCH subset (assuming index i) corresponds to an illegal time unit, ignoring/skipping this time unit, and continuing checking the next time unit along a predetermined direction (for example, forward/in a direction of greater K1 when incrementing, backward/in a direction of less K1 when decrementing) until the determined K1 does not correspond to an illegal time unit, so that the feedback reliability of the PDSCH subset can be improved.

The determination of K1 for the next PDSCH subset (assuming index i +1 or i-1) may apply a step size on the basis of the K1 that PDSCH subset i ultimately corresponds to and ensures that there is no correspondence to illegal time units, or may apply a step size on the basis of the determined initial K1 and ensure that there is no correspondence to illegal time units, where the initial K1 may be understood as a single K1 indicated in the DCI, and on this basis, the subset index difference (e.g., the difference between the two) between the next PDSCH subset and the second PDSCH subset needs to be considered.

The illegal time unit may be understood as that the time domain symbols corresponding to the time unit corresponding to K1 are all downlink, or at least one of the symbols occupied by the PUCCH Resource determined by the time unit corresponding to K1 is any of the following: semi-static downlink symbols (Semi-static DL Symbol); semi-static Flexible symbols (Semi-static Flexible Symbol); a Symbol (SSB Symbol) for carrying a synchronization signal block; symbol (CORESET0 Symbol) controlling resource set 0.

Optionally, the UE determines K1 corresponding to each PDSCH subset directly based on the step size and the single K1 indicated in the DCI, and it is not expected that K1 corresponding to any PDSCH subset corresponds to illegal time units. In this case, the network side can ensure that the feedback time domain position determined by the UE does not encounter an illegal time unit, thereby reducing the implementation complexity of the UE.

K1 determines mode 2: the second DCI indicates K1 corresponding to each PDSCH subset.

In this case, the second DCI indicates a corresponding K1 for each PDSCH subset, respectively. In practical applications, the K1 indicated by the second DCI for each PDSCH subset may be the same or different, and may meet a certain restriction (for example, the greater the number/index of the PDSCH subset, the greater the corresponding K1), or may not be limited at all.

In the K1 determination method 2, the following two determination methods may be included:

k1 determines mode 2-1: the corresponding K1 is explicitly indicated directly in the DCI for each PDSCH subset.

In a specific implementation, the DCI explicitly indicates the corresponding K1 for each PDSCH subset through an independent indication field or through an independent bit string in a certain indication field.

The maximum K1 number that can be indicated in the DCI may be specified by a protocol or configured by a network, and when the K1 number indicated in the DCI is greater than R, the first R K1 indicated in the DCI or the last R K1 may be in one-to-one correspondence with the R PDSCH subsets, and the remaining K1 may be regarded as K1 that is not actually effective and does not correspond to any PDSCH subset scheduled by the DCI, and the UE may ignore the K1 number indicated in the DCI.

K1 determines mode 2-2: a single K1 sequence in the list of K1 sequences is indicated in the DCI.

Optionally, in a case that the second DCI indicates the first information corresponding to each PDSCH subset, before the terminal receives the second DCI, the method further includes:

the terminal receives a first list, wherein the first list comprises at least one row, and each row comprises at least one piece of first information;

wherein the second DCI indicates a j-th row of the first list, the j-th row includes R pieces of the first information, the R pieces of the first information are in one-to-one correspondence with the R PDSCH subsets, and j is a natural number.

In specific implementation, the network side device may configure a K1 sequence list through high-level signaling, where each element in the list is a K1 sequence and may include one to multiple K1 values. When the network side device schedules DCI in the downlink, it may indicate a certain entry (corresponding number/index) in this list in the DCI, and then apply a K1 sequence corresponding to this entry to the set of PDSCH scheduled by this DCI, where each K1 value in this K1 sequence corresponds to each PDSCH subset in turn. The network side device may guarantee that the number of K1 values included in the indicated K1 sequence is equal to the number of PDSCH subsets divided by the scheduled PDSCH set, or that the number of K1 values > -the number of PDSCH subsets (to guarantee that there is a corresponding K1 value for each PDSCH subset; when greater than, the excess K1 values are ignored).

Note that K1 indicated for a certain PDSCH subset is typically a valid value. Optionally, the indicated K1 may also be a non-numerical value (for example, a special value of-1), where the feedback time of the HARQ-ACKs corresponding to the PDSCH subset is not explicitly indicated in the DCI, and it is necessary to wait for subsequent signaling to further trigger the feedback of the HARQ-ACKs, for example, the network subsequently triggers Type-3codebook report to feed back the HARQ-ACKs.

And II, determining PRI.

When implemented, PRI may be indicated by DCI. In practical applications, the DCI indicating the PRI, that is, the following third DCI and the first DCI may be the same DCI or different DCIs, which may be determined according to practical situations, and this is not limited in this embodiment of the present application.

the terminal receives a third DCI;

the terminal determines the second information corresponding to the first PDSCH subset according to the third DCI;

wherein the third DCI is to indicate any one of:

one of said second messages;

the second information corresponding to each PDSCH subset.

Optionally, in a case that the third DCI indicates one piece of the second information, the second information indicated by the third DCI corresponds to any one of: each PDSCH subset of the R PDSCH subsets; one PDSCH subset of the R PDSCH subsets.

PRI determination mode 1: the single PRI indicated by the third DCI corresponds to each PDSCH subset of the R PDSCH subsets.

In this case, a single PRI indicated by the third DCI may be applied to each PDSCH subset.

PRI determination mode 2: the single PRI indicated by the third DCI corresponds to each PDSCH subset of the R PDSCH subsets.

In this case, the single PRI indicated by the third DCI may be applied to the third target PDSCH subset. The third target PDSCH subset may be the first, last or designated PDSCH subset of the R PDSCH subsets, which may be determined according to practical situations, and is not limited in this embodiment of the application.

PRIs corresponding to PDSCH subsets other than the third target PDSCH subset of the R PDSCH subsets may be determined based on PRIs corresponding to the second PDSCH subset.

Optionally, PRIs corresponding to other PDSCH subsets may be sequentially incremented/decremented based on the subset index on the basis of the indicated single PRI (and modulo a first value, which is 8, or the maximum number of PUCCH resources configured in the PUCCH Resource Set used). Specifically, when a single PRI indicated in the DCI is applied to the designated PDSCH subset, the PRI corresponding to the PDSCH subset whose number/index is smaller than that of the designated PDSCH subset may be determined in a sequentially decreasing manner, and the PRI corresponding to the PDSCH subset whose number/index is larger than that of the designated PDSCH subset may be determined in a sequentially increasing manner. The value of the increment/decrement step can be determined by protocol specification, by higher layer configuration or based on preset rules, such as: the step size of the increment/decrement may be 1, but is not limited thereto.

PRI determination mode 3: the third DCI indicates the second information corresponding to each PDSCH subset.

In this case, the PRIs indicated by the third DCI for each PDSCH subset may be the same or different, which may be determined according to actual situations, and this is not limited in this embodiment of the present application.

It should be noted that when K1 corresponding to two PDSCH subsets are the same, generally, the PRI corresponding to the two PDSCH subsets is also required to be the same, i.e. the two PDSCH subsets correspond to the same PUCCH Resource in the same Slot/Sub-Slot. Of course, optionally, in practical applications, the relationship between the PRIs corresponding to the two PDSCH subsets may not be limited, that is, the PRIs corresponding to the two PDSCH subsets may be equal or different, but when the PRIs corresponding to one of the PDSCH subsets are unequal, the PUCCH resources used by the two PDSCH subsets may be determined based on the PRI corresponding to the PDSCH subset, for example, the PRI corresponding to the PDSCH subset with a larger number/index is used to determine the PUCCH resources of the two PDSCH subsets.

After K1 and PRI corresponding to each PDSCH subset are determined, PUCCH Resource corresponding to HARQ-ACK information transmission corresponding to each PDSCH included in each PDSCH subset may be determined, and corresponding PUCCH transmission may be performed based on the PUCCH Resource. When there is time-domain overlap of this PUCCH transmission with other PUCCH transmission or PUSCH transmission, a Prioritization (Prioritization) or Multiplexing (Multiplexing) operation may be further performed based on existing predefined rules.

It should be noted that PUCCH transmission determined by a PDSCH subset based on the above scheme may not be actually performed, for example, is dropped (Drop) based on Slot symbol (Slot Format) correlation configuration and rule, at which time its corresponding HARQ-ACK information may be dropped, or may be recovered through HARQ-ACK retransmission or other operations. Optionally, the network side may implement PUCCH transmission for guaranteeing to carry HARQ-ACK corresponding to each PDSCH subset, so as to reduce the feedback complexity of feedback information corresponding to the PDSCH subset.

In this embodiment of the present application, in practical applications, a PUCCH of the M PUCCHs may be used to transmit feedback information corresponding to a PDSCH scheduled by another DCI in addition to feedback information corresponding to the R PDSCH subsets scheduled by the first DCI. Therefore, the number of bits of the feedback information carried by the PUCCH in the M PUCCHs may exceed a first preset threshold, in which case, optionally, after the terminal determines the first PUCCH according to the first information and the second information corresponding to the first PDSCH subset, the method further includes:

the terminal sends first feedback information on the first PUCCH and second feedback information on a second PUCCH when detecting that the bit number of the feedback information carried by the first PUCCH is greater than a first preset threshold, wherein the first feedback information is feedback information corresponding to a first part of PDSCH included in the first PDSCH subset, and the second feedback information is feedback information corresponding to a second part of PDSCH included in the first PDSCH subset;

and the time unit where the second PUCCH is located is behind the time unit where the first PUCCH is located, and the bit numbers of the feedback information carried by the first PUCCH and the second PUCCH are both smaller than or equal to the first preset threshold.

In this optional embodiment, when detecting that the number of bits of the feedback information carried by the first PUCCH is greater than a first preset threshold, the terminal may split the feedback information corresponding to the first PDSCH subset, and split part of the feedback information corresponding to the first PDSCH subset onto a second PUCCH for transmission, so as to ensure that the number of bits of the feedback information carried on each PUCCH is less than or equal to the first preset threshold, thereby improving the reliability of feedback.

In practical application, the first preset threshold may be specified by a protocol, or configured by a high-level signaling at a network side, etc.; the second PUCCH may include one or more PUCCHs; feedback information corresponding to the first PDSCH subset may be uniformly split to be sent by each of the first PUCCH and the second PUCCH, or may be non-uniformly split to be sent by each of the first PUCCH and the second PUCCH, which may be specifically determined according to an actual situation, and this is not limited in this embodiment of the present application.

Referring to fig. 5, fig. 5 is a second flowchart of a feedback method according to an embodiment of the present application. The feedback method of the present embodiment is performed by the terminal. As shown in fig. 5, the feedback method may include the steps of:

step 501, when detecting that the bit number of third feedback information carried in a first time unit is greater than a second preset threshold, a terminal sends a first part of feedback information included in the third feedback information in the first time unit, and sends a second part of feedback information included in the third feedback information in a second time unit.

In this embodiment, when the number of HARQ-ACK information bits that need to be fed back in a first time unit (hereinafter referred to as a reference time unit) exceeds a certain threshold, the terminal may split the HARQ-ACK information bits, and split part of the HARQ-ACK information bits into other time units for feedback, so as to ensure that the number of HARQ-ACK information bits fed back in a single time unit does not exceed a specified threshold, thereby improving the reliability of feedback.

The second preset Threshold may be specified by a protocol, or configured by a network side through a high-layer signaling. The other time units may be non-illegal (for illegal judgment see the foregoing description) time units after the reference time unit. For example, if the reference time unit is Slot/Sub-Slot n, the other time units are Slot/Sub-Slot n + i (J) (i (J) >0, J ═ 1 … J), which are J time units that are not illegal and closest after the reference time unit. HARQ-ACK information that was previously expected to be fed back through the reference time unit may be transmitted through the J +1 time units (reference time unit + J other time units).

Optionally, in an implementation manner, the HARQ-ACK information may be uniformly sent in the J +1 time units, that is, the feedback information may be uniformly split into the J +1 time units to be sent; in another implementation manner, Threshold HARQ-ACK information bits may be fed back in each time unit of the first J time units, and the remaining HARQ-ACK information bits may be fed back in the last time unit.

The value of J may be predetermined, such as protocol agreement or network side device configuration, or may be determined by the above Threshold, for example, J is ceiling (HARQ-ACK information bit number/Threshold) -1.

The feedback method of this embodiment can ensure that the number of bits of the feedback information carried by each time unit is less than or equal to the second preset threshold, so as to improve the reliability of feedback.

Referring to fig. 6, fig. 6 is a third flowchart of a feedback method according to an embodiment of the present application. The feedback method of the present embodiment is executed by a network side device. As shown in fig. 6, the feedback method may include the steps of:

step 601, the network side device sends first downlink control information DCI, where the first DCI is used to schedule T physical downlink shared channels PDSCH.

Step 602, the network side device receives feedback information corresponding to R PDSCH subsets on M physical uplink control channels PUCCH.

dividing the PDSCH subsets based on the number of PDSCHs contained in a single PDSCH subset;

dividing the PDSCH subsets based on the number of time units corresponding to a single PDSCH subset;

partitioning the PDSCH subset based on the processing time of the PDSCH;

the method comprises the steps of dividing a PDSCH subset based on the number of first objects, wherein the first objects are the PDSCH subset or first information indicated by network side equipment, and the first information is used for determining feedback time domain positions corresponding to the PDSCH subset.

Optionally, the number of time units corresponding to the single PDSCH subset is any of:

the number of time units occupied by a single PDSCH subset;

the number of time units spanned by a single PDSCH subset.

Optionally, before the network side device sends the first downlink control information DCI, the method further includes:

the network side equipment sends a time domain resource allocation table, the time domain resource allocation table comprises at least one row, each row comprises at least one time domain resource allocation record, and the time domain resource allocation records correspond to PDSCHs one by one;

the first DCI indicates an ith row of the time domain resource allocation table, where i is a natural number, and is used to schedule T PDSCHs corresponding to T time domain resource allocation records included in the ith row;

the dividing the PDSCH subsets based on the indication of the network side device comprises:

dividing the PDSCH subset based on a second object included in the ith row.

Optionally, the second object is any one of:

first configuration information, configured to configure a PDSCH subset number corresponding to each time domain resource allocation record of the ith row;

Optionally, the first DCI indicates third information, where the third information is any one of:

the number of PDSCHs each PDSCH subset includes.

the network side equipment sends a PDSCH subset division information list, wherein the PDSCH subset division information list comprises at least one PDSCH subset division mode, and each PDSCH subset division mode indicates one piece of third information;

Optionally, after the network side device sends the first downlink control information DCI to the terminal, before the network side device receives the feedback information corresponding to the R PDSCH subsets on the M physical uplink control channels PUCCH, the method further includes:

the network side equipment determines a first PUCCH according to first information and second information corresponding to a first PDSCH subset, wherein the first PUCCH is used for sending feedback information corresponding to the first PDSCH subset;

the first information is used for determining a feedback time domain position corresponding to a PDSCH subset, the second information is used for determining a feedback PUCCH resource corresponding to the PDSCH subset, and the first PDSCH subset is any one PDSCH subset in the R PDSCH subsets.

Optionally, before the network side device determines the first PUCCH according to the first information and the second information corresponding to the first PDSCH subset, the method further includes:

the network side equipment sends second DCI;

wherein the second DCI is to indicate any one of:

one of said first information;

the first information corresponding to each PDSCH subset.

Optionally, in a case where the second DCI indicates one piece of the first information, the first information indicated by the second DCI corresponds to any one of: each PDSCH subset of the R PDSCH subsets; one PDSCH subset of the R PDSCH subsets.

Optionally, in a case that the second DCI indicates the first information corresponding to each PDSCH subset, before the network side device transmits the second DCI, the method further includes:

the network side equipment sends a first list, wherein the first list comprises at least one row, and each row comprises at least one piece of first information;

the network side equipment sends a third DCI;

wherein the third DCI is to indicate any one of:

one of said second messages;

the second information corresponding to each PDSCH subset.

Optionally, in a case that the third DCI indicates one piece of the second information, the second information indicated by the third DCI corresponds to any one of: the R PDSCH subsets; one PDSCH subset of the R PDSCH subsets.

Optionally, the receiving, by the network side device, feedback information corresponding to R PDSCH subsets on M physical uplink control channels PUCCH includes:

the network side equipment receives first feedback information on a first PUCCH and receives second feedback information on a second PUCCH under the condition that the number of bits of the feedback information carried by the first PUCCH is larger than a first preset threshold value, wherein the first feedback information is feedback information corresponding to a first PDSCH (physical Downlink shared channel) included in the first PDSCH subset, and the second feedback information is feedback information corresponding to a second PDSCH included in the first PDSCH subset;

It should be noted that, the present embodiment is taken as an embodiment of a network side device corresponding to the embodiment of the method in fig. 2, and therefore, reference may be made to relevant descriptions in the embodiment of the method in fig. 2, and the same beneficial effects may be achieved. To avoid repetition of the description, the description is omitted.

Referring to fig. 7, fig. 7 is a fourth flowchart of a feedback method according to an embodiment of the present disclosure. The feedback method of the present embodiment is executed by a network side device. As shown in fig. 7, the feedback method may include the steps of:

step 701, when detecting that the bit number of third feedback information carried in a first time unit is greater than a second preset threshold, a network side device sends a first part of feedback information included in the third feedback information in the first time unit, and sends a second part of feedback information included in the third feedback information in a second time unit.

It should be noted that, the present embodiment is taken as an embodiment of a network side device corresponding to the embodiment of the method in fig. 5, and therefore, reference may be made to the relevant description in the embodiment of the method in fig. 5, and the same beneficial effects may be achieved. To avoid repetition of the description, the description is omitted.

The various optional implementations described in the embodiments of the present application may be implemented in combination with each other or separately, and the embodiments of the present application are not limited thereto.

For ease of understanding, examples are illustrated below:

in the embodiment of the present application, when a single DCI schedules multiple PDSCHs, HARQ-ACK information corresponding to the PDSCHs may be mapped onto one to multiple PUCCHs by using the following scheme.

The first scheme is as follows: the method comprises the steps of dividing a plurality of PDSCHs scheduled by single DCI into subsets and determining feedback time units/PUCCHs corresponding to the subsets.

The PDSCH of a single DCI schedule may form a PDSCH set, which may be divided into one to more PDSCH subsets according to a certain rule, and each PDSCH subset may feed back corresponding HARQ-ACK information in the same or different time units/on the PUCCH.

The above scheme may include the following operations:

one, division of PDSCH subset.

The PDSCH set scheduled by a single DCI may be divided into one or more PDSCH subsets according to a certain rule, and any one of the following rules/manners may be adopted:

subset division mode 1: partitioning PDSCH subsets based on the (maximum) number of PDSCHs a single PDSCH subset contains

For a set of PDSCHs scheduled by a DCI, starting from a first PDSCH, dividing every X PDSCHs into a PDSCH subset until a last PDSCH; when the number of PDSCH remaining in the set is ≦ X, dividing the PDSCH into a single PDSCH subset; namely, in the divided PDSCH subsets, the number of PDSCHs included in the last PDSCH subset is X, and the number of PDSCHs included in the other PDSCH subsets is X. Generally, PDSCHs included in a PDSCH set scheduled by a DCI may be arranged from front to back (or from early to late) based on PDSCH starting times, and assuming that there is no time domain overlap between any two adjacent PDSCHs, the division may be performed sequentially from front to back based on ordered PDSCH queues corresponding to the PDSCH set.

Optionally, in order to avoid that the number of the PDSCH included in the divided last PDSCH subset is small, the following adjustment may be made: the number N of PDSCHs that the last PDSCH subset is allowed to contain satisfies X < ═ N < 2X, i.e., when the number of PDSCHs remaining is < 2X, the PDSCHs are divided into a single PDSCH subset. This may reduce a subset of PDSCH relative to the partitioning described above.

The above X may be determined in any one of the following ways:

1) x is defined by a protocol or configured by a network side through higher layer signaling or the like.

X for each SCS application may be specified by a protocol or configured by a network, or a reference X for a certain reference SCS application may be specified by a protocol or configured by a network, and X for other SCS applications may be converted based on the combination of the reference SCS and the reference X, for example, based on the time slot length or subcarrier width corresponding to each SCS (for example, when the network configures reference X2 for reference SCS120kHz, X2 48 for SCS 480kHz, where the conversion factor 4 may be obtained based on the ratio 480/120 of subcarrier width to 4, or may be considered as the ratio of the time slot lengths corresponding to the two SCS's).

2) X is indicated by DCI.

The value of X may be directly indicated in the DCI, or an X value list may be configured by a higher layer, and a certain index/subscript in the list is indicated in the DCI, so as to apply the X value corresponding to the index/subscript.

Subset partitioning method 2: the PDSCH subsets are divided based on the (maximum) number of time units for a single PDSCH subset.

For a certain DCI scheduled PDSCH set, considering the number of (consecutive) time units it spans from the first PDSCH until the last PDSCH, starting from the first time unit that spans/occupies, all PDSCHs scheduled in every Y (consecutive) time units are divided into one PDSCH subset until the last time unit that spans/occupies; when the number of remaining spanned/occupied (contiguous) time units < ═ Y, dividing all PDSCHs scheduled in these time units into a single PDSCH subset; namely, in the divided PDSCH subsets, the number of crossing/occupied (consecutive) time units corresponding to the last PDSCH subset is equal to Y, and the number of crossing/occupied (consecutive) time units corresponding to other PDSCH subsets is Y.

Optionally, in order to avoid that the number of the PDSCH included in the divided last PDSCH subset is small, the following adjustment may be made: the number of time units N corresponding to the last PDSCH subset is allowed to satisfy Y < ═ N <2 × Y, i.e. when the number of time units remaining is <2 × Y, all PDSCHs scheduled in these time units are divided into a single PDSCH subset. This may reduce one PDSCH subset relative to the aforementioned partitioning.

The time unit here may be a Slot or a Sub-Slot, and may correspond to a downlink Slot or an uplink Slot/Sub-Slot. In addition, the time unit here may also be an absolute time unit (i.e. a time unit not introduced by design in the communication system), for example, ms.

The above division method is generally applied to a case where a scheduled PDSCH is included in each time unit spanned by a PDSCH set.

When the PDSCH set does not contain scheduled PDSCH in a certain time unit, any of the following manners may be adopted:

subset partitioning mode 2-1: time units not containing scheduled PDSCH are ignored when dividing the PDSCH subset, i.e. the PDSCH subset is divided based on the set of (contiguous or non-contiguous) time units occupied by the PDSCH set, as shown in fig. 4 b.

Here, the PDSCH set occupies a certain time unit, which means that at least one scheduled PDSCH is included in the time unit. The set of time units is ordered in some rule (e.g., from front to back) based on the time instance (e.g., start time) of the time unit and then reused to partition the PDSCH subset.

Subset partitioning mode 2-2: time units that do not contain scheduled PDSCH are still considered when dividing the PDSCH subset, i.e. the PDSCH subset is divided based on the set of consecutive time units spanned by the PDSCH set, as shown in fig. 4 c.

When Y consecutive time units corresponding to a PDSCH subset do not include any scheduled PDSCH, the PDSCH subset is ignored, or the Y consecutive time units do not correspond to any PDSCH subset.

Y may be determined by any one of the following methods:

1) y is defined by protocol or configured by network side through higher layer signaling and the like

Y for each SCS application may be specified by a protocol or configured by a network, or when Y does not correspond to an absolute time unit, Y for a certain reference SCS application may be specified by a protocol or configured by a network, Y for other SCS applications may be converted based on the combination of the reference SCS and the reference Y, for example, based on the time slot length or subcarrier width corresponding to each SCS (for example, when the network side configures reference Y to 2 for reference SCS120kHz, Y to 2 to 8 for SCS 480kHz, the conversion factor 4 may be obtained based on the subcarrier width ratio 480/120 to 4, or may be considered as the ratio of the time slot lengths corresponding to the two SCS's).

2) Y is indicated by DCI.

The value of Y may be directly indicated in DCI, or a Y value list may be configured by a higher layer, and a certain index/subscript in the list is indicated in DCI, so as to apply the Y value corresponding to the index/subscript.

Subset division mode 3: the network side (personalized) indicates each PDSCH subset contains/corresponds to a PDSCH.

Any of the following may be used:

subset partitioning mode 3-1: PDSCH subsets are divided/identified in a time domain resource allocation Table TDRA Table configured by high-level signaling at a network side

Based on the current protocol mechanism, a certain row in the TDRA Table may be indicated in a Time domain resource allocation indication field ("Time domain resource allocation" indication field) of the downlink scheduling DCI, so as to indicate that one or more PDSCHs configured in the row are scheduled, where each SLIV configured in the row may correspond to each PDSCH one-to-one, and the number of configured SLIVs indicates the number of scheduled PDSCHs. Therefore, when configuring each row of the TDRA Table, it is able to know the number of time units spanned by each row, the time domain length, the number of HARQ processes that need to be occupied, and other information. The flexible partitioning of PDSCH subsets can now be personalized at the same time by explicit fields or implicit rules when configuring each row. Any of the following may be used:

subset partitioning mode 3-1-1: the PDSCH subsets are divided by explicit fields/configuration information in the TDRA Table.

Generally, an explicit field or configuration information may be introduced in each row of the TDRA Table to indicate PDSCH subset partition information corresponding to this row. When the downlink scheduling DCI actually schedules the row, the PDSCH subset division information corresponding to the row is automatically applied to the scheduled PDSCH set, and the PDSCH set is divided into PDSCH subsets. Specifically, the explicit fields or configuration information introduced in each row may be any one of the following ways:

explicitly configuring a corresponding PDSCH subset number/index for each SLIV (one-to-one correspondence with each scheduled PDSCH);

each SLIV (corresponding to each scheduled PDSCH one-to-one) corresponds to a bi-state indication bit (for example, indicated by using 1 bit), when the indication bit corresponding to a certain SLIV is flipped with respect to the indication bit corresponding to the previous SLIV (for example, 1 bit of SLIV (i) is 0/1, and 1 bit of SLIV (i +1) is 1/0), starting from the flipped SLIV until the previous SLIV that is flipped next time, a PDSCH subset is formed/corresponding to SLIV with consecutive numbers/indexes, the indication bit corresponding to the first SLIV indicates that it is flipped by default, for example, for an indication bit sequence 00111000 (each bit in the sequence corresponds to each SLIV/PDSCH in 8 SLIV/PDSCHs one-to-one), a PDSCH subset 1 is formed/corresponding to 1/2 th SLIV, a PDSCH subset 2 is formed/corresponding to 3/4/5 th SLIV, constituent/corresponding PDSCH subset 3 from the 6/7/8 th SLIV;

explicitly configuring SLIV number/index lists contained in each PDSCH subset in each row;

the boundary of the adjacent PDSCH subsets is explicitly indicated in each row, for example, assuming that each PDSCH subset corresponds to SLIV/PDSCH with consecutive numbers/indexes, the number/index of the first/last SLIV/PDSCH in each PDSCH subset corresponding to this row may be sequentially indicated (for example, in the order of PDSCH subset numbers/indexes from small to large), optionally, the information of the last PDSCH subset may be omitted, and derived based on the SLIV/PDSCH information configured in each row and the configuration information of the other PDSCH subsets in the front.

The first and third manners may flexibly configure the mapping relationship between the SLIV/PDSCH and the PDSCH subset in each row of the TDRA Table, for example, to implement the flexibility of discontinuous numbering/indexing of the SLIV/PDSCH corresponding to a certain PDSCH subset, but the signaling overhead is large; in contrast, the second and fourth approaches require that the SLIV/PDSCH corresponding to a certain PDSCH subset correspond to consecutive numbers/indices, but the signaling overhead is small.

Subset partitioning scheme 3-1-2: the PDSCH subsets are implicitly divided by the relevant information in the TDRA Table.

At this time, there is no explicit field or configuration information in each row of the TDRA Table to divide the PDSCH subset, but the PDSCH subset is divided based on other time domain allocation information, and some predefined rules. Any of the following may be used:

the SLIV/PDSCHs that are mutually continuous in the time domain are classified into the same PDSCH subset, that is, when one to multiple gaps (assumed to be Z) exist in the time domain resource allocation corresponding to a certain row in the TDRA Table, the gaps divide the SLIV/PDSCH corresponding to the row into multiple PDSCH subsets (Z +1, and numbers/indexes may be sequentially allocated to the PDSCH subsets from front to back), each Gap serves as an interval between two adjacent PDSCH subsets, and at this time, the SLIV/PDSCH corresponding to each PDSCH subset is mutually continuous in the time domain. Gap here is understood to be > -1 symbol. Optionally, a Gap threshold may also be introduced, and only when the interval > between two adjacent SLIV/PDSCHs is equal to the threshold, it is considered that Gap exists between the two SLIV/PDSCHs, and the rule for dividing the PDSCH subsets based on Gap is consistent. The Gap threshold may be specified by a protocol or configured by a network side through higher layer signaling.

When each row in the TDRA Table is configured, one to multiple K0 may be configured, and each K0 is configured with one to multiple SLIV/PDSCHs and associated information (these SLIV/PDSCHs are continuous in time domain or do not require continuous). At this time, one to multiple SLIVs/PDSCHs corresponding to each K0 correspond to the same PDSCH subset, and numbers/indexes may be sequentially allocated to the PDSCH subsets according to the configuration order of K0, or numbers/indexes may be sequentially allocated to the PDSCH subsets from front to back (i.e., according to the order of K0 from small to large).

Subset partitioning mode 3-2: explicit indication of PDSCH subset partitioning information in downlink scheduling DCI

Here, the downlink scheduling DCI indicates the time domain resource allocation information and also indicates the division of the PDSCH subset by using an independent indication domain. Any of the following may be used:

subset partitioning mode 3-2-1: indicating a boundary of a subset of adjacent PDSCHs in the DCI.

Assuming that each PDSCH subset corresponds to PDSCH with consecutive numbers/indices, the number/index of the first/last PDSCH in each PDSCH subset may be indicated sequentially (e.g., in order of small to large PDSCH subset numbers/indices). Alternatively, the information of the last PDSCH subset may be omitted and derived based on the DCI scheduled PDSCH set and the configuration information of other previous PDSCH subsets. Specifically, any one of the following modes may be adopted:

the number/index of the first/last PDSCH corresponding to each PDSCH subset (or each PDSCH subset except the last PDSCH subset) is directly indicated in the DCI in turn. Each indication may correspond to a different DCI indication field, the number of indication fields may be specified by a protocol or configured by a higher layer, the number of bits corresponding to an indication field may be specified by a protocol or configured by a higher layer, or a derivation may be performed based on the maximum number of PDSCHs corresponding to each Row in the TDRA Table (e.g., the number of bits is ceiling (log2(Max _ PDSCH _ Num _ Per _ Row))). For example, if the PDSCH scheduled by each DCI is divided into two PDSCH subsets at most by protocol specification or network configuration, a single indication field may indicate the index of the first PDSCH of the second PDSCH subset in the downlink scheduling DCI, and a special value (e.g. 0) of this indication field indicates that the second PDSCH subset does not exist, that is, the PDSCH set scheduled by the downlink scheduling DCI is not divided into PDSCH subsets, or the PDSCHs in the PDSCH set all correspond to the first PDSCH subset.

Configuring a PDSCH subset division information list through high-level signaling, wherein each row in the list indicates the number/index of the first/last PDSCH corresponding to each PDSCH subset (or each PDSCH subset except the last PDSCH subset). A certain entry (corresponding number/index) in this list is indicated in the DCI, and then this corresponding PDSCH subset partitioning information is applied to the set of PDSCH scheduled by this DCI.

Subset partitioning mode 3-2-2: the number of PDSCHs included in each PDSCH subset is indicated in the DCI.

Assuming that each PDSCH subset corresponds to PDSCH with consecutive numbers/indices, the number of PDSCHs corresponding to each PDSCH subset may be indicated in turn (e.g., in order of PDSCH subset numbers/indices from small to large). Alternatively, the information of the last PDSCH subset may be omitted and derived based on the DCI scheduled PDSCH set and the configuration information of other previous PDSCH subsets. Specifically, any one of the following modes may be adopted:

the number of PDSCHs corresponding to each PDSCH subset (or each PDSCH subset except the last PDSCH subset) is directly indicated in sequence in the DCI. Each indication may correspond to a different DCI indication field, the number of indication fields may be specified by a protocol or configured by a higher layer, the number of bits corresponding to an indication field may be specified by a protocol or configured by a higher layer, or a derivation may be performed based on the maximum number of PDSCHs corresponding to each Row in the TDRA Table (e.g., the number of bits is ceiling (log2(Max _ PDSCH _ Num _ Per _ Row))). For example, if the PDSCH scheduled by each DCI is divided into two PDSCH subsets at most according to protocol specification or network configuration, a single indication field may exist in the downlink scheduling DCI to indicate the number of PDSCHs corresponding to the first PDSCH subset (at this time, the number of PDSCH corresponding to the second PDSCH subset is equal to the number of PDSCH scheduled by the DCI — the number of PDSCH corresponding to the first PDSCH subset), and a special value (e.g. 0) of the indication field indicates that there is no second PDSCH subset, that is, the PDSCH set scheduled by the downlink scheduling DCI is not divided into PDSCH subsets, or the PDSCHs in the PDSCH set all correspond to the first PDSCH subset.

And configuring a PDSCH subset division information list through high-layer signaling, wherein each row in the list indicates the number of PDSCHs corresponding to each PDSCH subset (or each PDSCH subset except the last PDSCH subset). A certain entry (corresponding number/index) in this list is indicated in the DCI, and this corresponding PDSCH subset partitioning information is applied to the set of PDSCH scheduled by this DCI.

Subset partitioning manner 4: partitioning PDSCH subsets based on whether a scheduled PDSCH meets a processing time requirement

When a single K1 indicated in the DCI is allowed not to meet the processing time requirement for a partial (e.g., last) PDSCH scheduled in this DCI, the scheduled PDSCHs may be divided into at most two PDSCH subsets based on whether they meet the processing time requirement, e.g., PDSCH meeting the processing time requirement is divided into a first PDSCH subset and PDSCH not meeting the processing time requirement is divided into a second PDSCH subset (when all scheduled PDSCHs meet the processing time requirement, the second PDSCH subset does not exist; all PDSCHs not currently considered to be allowed to be scheduled by a single DCI do not meet the processing time requirement).

At this time, the determination of K1 corresponding to each PDSCH subset may adopt the following K1 determination mode 1, for example, a single K1 indicated in DCI may be applied to the first PDSCH subset, and the K1 corresponding to the second PDSCH subset is determined based on the single K1 and the increment step size (assuming that a common K1 starting reference point is used; when the increment step size is determined based on a preset rule, the increment step size may be considered so that the K1 corresponding to the second PDSCH subset corresponds to the first feedback time unit capable of meeting the processing time requirement of all PDSCHs in the subset).

Subset division mode 5: partitioning PDSCH subsets based on PDSCH subset number or K1 number

It is assumed here that the number of PDSCH subsets or the number K1N is known, e.g. as specified by the protocol or as configured by higher layer signaling, or as explicitly indicated by DCI. The PDSCH set scheduled by a single DCI may be uniformly divided into N PDSCH subsets based on PDSCH granularity, or based on spanned/occupied time unit granularity, or as uniformly divided into N PDSCH subsets as possible. For example, assuming that a PDSCH set contains M PDSCHs based on PDSCH granularity, each PDSCH subset contains a ceiling (M/N) PDSCH for the first N1-M mod N PDSCH subsets, and each PDSCH subset contains a floor (M/N) PDSCH for the last N2-N1 PDSCH subsets; when M is divisible by N, each PDSCH subset contains M/N PDSCHs for N PDSCH subsets. Here, M >0 and N >0 are required.

When the PDSCH subsets are divided based on the K1 numbers, the determination of the K1 number may employ the following K1 determination manner 2.

And secondly, determining K1 corresponding to each PDSCH subset.

After determining the PDSCH subset division of the single DCI scheduled PDSCH set, it is necessary to further determine K1 corresponding to each PDSCH subset, so as to determine a time domain position of HARQ-ACK information feedback corresponding to each PDSCH included in each PDSCH subset, that is, a Slot/Sub-Slot where a PUCCH carrying HARQ-ACK is located.

When only a single K1 is indicated in the DCI, the starting reference point of this K1 may be applied to the (last) Slot/Sub-Slot where the last PDSCH scheduled by this DCI is located, or in other words, the (uplink) Slot/Sub-Slot where the end time of the last PDSCH is located. Accordingly, these K1 may still follow the same starting reference point described above (hereinafter referred to as "common K1 starting reference point") when corresponding K1 is determined for each PDSCH subset. At this time, it can be understood that if K1 corresponding to any two PDSCH subsets is the same, HARQ-ACKs corresponding to the two PDSCH subsets are multiplexed on the same PUCCH in the same Slot/Sub-Slot (based on current protocol, there is at most a single PUCCH carrying HARQ-ACK in the same Slot/Sub-Slot).

Alternatively, when determining the corresponding K1 for each PDSCH subset, the corresponding K1 for each PDSCH subset may adopt a respective starting reference point (hereinafter referred to as "respective K1 starting reference point"). For example, each PDSCH subset uses the (last) Slot/Sub-Slot where the last PDSCH is contained, or the (uplink) Slot/Sub-Slot where the end time of the last PDSCH is located, as the starting reference point for applying its corresponding K1.

When determining K1 corresponding to each PDSCH subset, any one of the following manners may be adopted:

k1 determines mode 1: a single K1 is indicated in the DCI, and the K1 for each PDSCH subset is determined based on this single K1 and predefined rules.

When respective K1 starting reference points are adopted, a single K1 indicated in DCI may be applied to each PDSCH subset, and in this case, since the starting reference points of K1 corresponding to each PDSCH subset may be different, the PUCCH in different Slot/Sub-Slot may be actually corresponding. Alternatively, a single K1 indicated in DCI may be applied to the first/last/designated PDSCH subset scheduled, and K1 corresponding to other PDSCH subsets may be sequentially incremented/decremented based on the indicated single K1 based on the subset index (at this time, a common K1 starting reference point may be adopted, and a respective K1 starting reference point may be adopted, which may be specified by a protocol or configured by a network; generally, since values of K1 corresponding to each PDSCH subset are guaranteed to be different, at this time, a common K1 starting reference point may be adopted for simplicity). When a single K1 indicated in the DCI is applied to the designated PDSCH subset, K1 corresponding to a PDSCH subset having a smaller number/index than the designated PDSCH subset may be determined in a sequentially decreasing manner, and K1 corresponding to a PDSCH subset having a larger number/index than the designated PDSCH subset may be determined in a sequentially increasing manner.

The step size of the increment/decrement may be 1, or may be a specified value (determined by protocol specification or higher layer configuration, or based on a preset rule).

When determining K1 corresponding to other PDSCH subsets based on the increment/decrement rule, if K1 corresponding to a certain determined PDSCH subset (assuming index i) corresponds to an illegal time unit, this time unit is ignored/skipped and the check for the next time unit continues in the predetermined direction (increasing forward/greater in K1, decreasing backward/less in K1) until the determined K1 does not correspond to an illegal time unit, the determination of K1 for the next PDSCH subset (assuming index i +1 or i-1) can either apply a step size on the basis of the K1 that this PDSCH subset ultimately corresponds to and ensure that it does not correspond to an illegal time unit or ensure that it does not correspond to an illegal time unit on the basis of the initial K1 determined for the next PDSCH subset based on the step size (not taking into account the K1 change due to an illegal time unit). Optionally, the UE determines K1 corresponding to each PDSCH subset based on the step size and a single K1 indicated in the DCI directly, and it is not desirable that K1 corresponding to any PDSCH subset correspond to illegal time units.

The time unit may be understood as a Slot or Sub-Slot, and may correspond to an uplink Slot/Sub-Slot. The time unit is illegal to understand that time domain symbols corresponding to the Slot/Sub-Slot corresponding to K1 are all downlink, or at least one of symbols occupied by PUCCH Resource determined in the Slot/Sub-Slot corresponding to K1 is Semi-static DL Symbol/Semi-static Flexible Symbol/SSB Symbol/core set0 Symbol.

K1 determines mode 2: a corresponding K1 is indicated in the DCI for each PDSCH subset.

The corresponding K1 may be indicated separately for each PDSCH subset in the DCI at this time. These K1 may be the same or different, may comply with certain restrictions (e.g., the larger the number/index of the PDSCH subset, the larger the corresponding K1), or may not be limiting at all. In this case, a common K1 start reference point and a respective K1 start reference point may be used, which may be specified by a protocol or configured by a network.

Any of the following may be used:

k1 determines mode 2-1: direct explicit indication of corresponding K1 for each PDSCH subset in DCI

The corresponding K1 is explicitly indicated for each PDSCH subset in DCI by an independent indication field or by an independent bit string in some indication field. The maximum number of K1 that may be indicated in the DCI may be specified by the protocol or configured by the network, at which point the UE ignores the K1 indication that is not actually in effect in the DCI (i.e., the K1 indication that does not correspond to any PDSCH subset of this DCI schedule). Assuming that M K1 can be indicated at most in the DCI, N PDSCH subsets are actually scheduled, and N < ═ M, the first N K1 sequentially correspond to the respective PDSCH subsets one to one, and the remaining M-N K1 indicate to be ignored, and may be indicated as an arbitrary value or a reserved value in the DCI.

K1 determines mode 2-2: a single K1 sequence in a list of K1 sequences indicating a high-level configuration in DCI.

A K1 sequence list is configured through high-layer signaling, each element in the list is a K1 sequence and can contain one to a plurality of K1 values. When the network issues the scheduling DCI, a certain item (corresponding number/index) in the list is indicated in the DCI, and then the K1 sequence corresponding to the item is applied to the PDSCH set scheduled by the DCI, and each K1 value in the K1 sequence sequentially corresponds to each PDSCH subset. The number of K1 values contained in the K1 sequence of the network guarantee indication is equal to the number of PDSCH subsets divided by the scheduled PDSCH set, or K1 value number > PDSCH subset number (to guarantee that there is a corresponding K1 value for each PDSCH subset; when greater than, the excess K1 value is ignored).

Note that K1 indicated for a certain PDSCH subset is typically a valid value. Optionally, the indicated K1 may also be a non-numerical value (e.g., a special value of-1), where the feedback time of the HARQ-ACKs corresponding to the PDSCH subset is not explicitly indicated in the DCI, and it is necessary to wait for a subsequent signaling to further trigger the feedback of the HARQ-ACKs, for example, a network subsequently triggers a Type-3codebook report to feed back the HARQ-ACKs.

And thirdly, determining PRI corresponding to each PDSCH subset.

After determining the PDSCH subset division of a single DCI scheduled PDSCH set and the K1 corresponding to each PDSCH subset, it is further required to determine a pri (PUCCH Resource indicator) associated with K1 corresponding to each PDSCH subset, so as to determine a PUCCH Resource (located in Slot/Sub-Slot corresponding to K1) for HARQ-ACK information feedback corresponding to each PDSCH included in each PDSCH subset.

When determining the PRI corresponding to each PDSCH subset, any one of the following manners may be adopted:

PRI determination mode 1: indicating a single PRI in DCI, which is applied for each PDSCH subset

And applying the single PRI indicated in the DCI to each PDSCH subset to determine PUCCH Resource corresponding to PUCCH transmission for carrying HARQ-ACK information corresponding to a certain PDSCH subset.

PRI determination mode 2: indicating a single PRI in DCI, the PRI corresponding to each PDSCH subset being determined based on the single PRI and a predefined rule

A single PRI indicated in the DCI may be applied to the first/last/designated PDSCH subset scheduled, and PRIs corresponding to other PDSCH subsets may be sequentially incremented/decremented based on the subset index (and modulo 8, or the maximum number of PUCCH resources configured in the PUCCH Resource Set used). When a single PRI indicated in the DCI is applied to the designated PDSCH subset, the PRI corresponding to the PDSCH subset whose number/index is smaller than that of the designated PDSCH subset may be determined in a sequentially decreasing manner, and the PRI corresponding to the PDSCH subset whose number/index is larger than that of the designated PDSCH subset may be determined in a sequentially increasing manner.

The step size of the increment/decrement may be 1, or may be a specified value (specified by a protocol or configured by a higher layer).

PRI determination mode 3: explicit indication of corresponding PRI for each PDSCH subset in DCI

The corresponding PRI may be indicated independently for each PDSCH subset in the DCI at this time. These PRIs may be the same or different.

When K1 corresponding to two PDSCH subsets are the same, generally, the PRIs corresponding to the two PDSCH subsets are also required to be the same, that is, the two PDSCH subsets correspond to the same PUCCH Resource in the same Slot/Sub-Slot; optionally, the relationship between the PRIs corresponding to the two PDSCH subsets is not limited, but the used PUCCH Resource is determined based on the PRI corresponding to a certain PDSCH subset (for example, the PUCCH Resource is determined using the PRI corresponding to the PDSCH subset with a larger number/index).

The maximum number of PRIs that may be indicated in the DCI may be specified by the protocol or configured by the network, where the UE ignores PRI indications that are not actually in effect in the DCI (i.e., PRI indications that do not correspond to any PDSCH subset of the DCI schedule). Assuming that M PRIs can be indicated at most in the DCI, N PDSCH subsets are actually scheduled, and N < ═ M, the first N PRIs sequentially correspond to the PDSCH subsets one by one, and the remaining M-N PRIs indicate to be ignored, and may be indicated as an arbitrary value or a reserved value in the DCI.

After K1 and PRI corresponding to each PDSCH subset are determined, PUCCH Resource corresponding to HARQ-ACK information transmission corresponding to each PDSCH included in each PDSCH subset may be determined, and corresponding PUCCH transmission may be performed based on the PUCCH Resource. When there is time-domain overlap of this PUCCH transmission with other PUCCH transmissions or PUSCH transmissions, the Prioritization or Multiplexing operation may be further performed based on existing predefined rules.

It should be noted that PUCCH transmission determined by a PDSCH subset based on the above scheme may not be actually performed (e.g., Drop based on Slot Format related configuration and rule), and at this time, its corresponding HARQ-ACK information is discarded or can be recovered through HARQ-ACK retransmission or other operations. Optionally, the network side implements PUCCH transmission for guaranteeing to carry HARQ-ACK corresponding to each PDSCH subset.

Scheme II: and dividing the HARQ-ACK information needing to be fed back in a single feedback time unit according to the need.

When the number of the HARQ-ACK information bits which need to be fed back in a certain feedback time unit (hereinafter referred to as a reference time unit) exceeds a certain threshold, splitting the HARQ-ACK information bits, splitting part of the HARQ-ACK information bits into other time units for feedback, and ensuring that the number of the HARQ-ACK information bits fed back in a single time unit does not exceed a specified threshold. The time unit here may be a Slot or Sub-Slot.

The Threshold may be specified by a protocol or configured by a higher layer signaling on the network side.

The other time units may be time units after the reference time unit, for example, assuming that the reference time unit is Slot/Sub-Slot n, the other time units are Slot/Sub-Slot n + i (J) (i (J) >0, J ═ 1 … J), the other time units may be J time units which are not illegal (illegal judgment is described in the foregoing description) after the reference time unit and are the latest, and J may be determined by the above Threshold, for example, J ═ ceiling (HARQ-ACK information bit number/Threshold) -1. The HARQ-ACK information bits that need to be fed back may be uniformly divided in the J +1 time units (reference time unit + J other time units), or Threshold HARQ-ACK information bits may be fed back in each time unit of the first J time units, and the remaining HARQ-ACK information bits may be fed back in the last time unit.

In the first scheme, from the perspective of single downlink scheduling DCI, the HARQ-ACK information corresponding to the DCI is divided into different PUCCHs at a plurality of time domain positions for feedback, so that excessive HARQ-ACK feedback time delay, excessive HARQ processes occupying data volume and excessive HARQ-ACK bit load on a single PUCCH are avoided; in the second scheme, from the perspective of a single feedback time unit, the HARQ-ACK information carried by the single feedback time unit is considered to be split to different PUCCHs at multiple time domain positions for feedback, so that too many HARQ-ACK bits are prevented from being carried on the single PUCCH. Further, the scheme one and the scheme two may be fused, for example, different PUCCHs at multiple time domain positions corresponding to a single scheduling DCI are determined based on the scheme one, at this time, different scheduling DCIs may point to the same PUCCH, that is, a single PUCCH carries HARQ-ACK information corresponding to multiple different scheduling DCIs, at this time, the scheme two is applied, and HARQ-ACK information carried on the single PUCCH is split and transmitted when necessary.

In the embodiment of the application, when a plurality of PDSCHs are scheduled by a single DCI, a complete solution is introduced, so that HARQ-ACK information corresponding to each scheduled PDSCH can be multiplexed on a plurality of different PUCCHs, and the beneficial effects of shortening HARQ-ACK feedback time delay, reducing the number of occupied HARQ processes and reducing feedback load on a single PUCCH are achieved.

It should be noted that, in the feedback method provided in the embodiment of the present application, the execution subject may be a virtual device, or a control module in the virtual device for executing the feedback method. In the embodiment of the present application, a feedback method executed by a virtual device is taken as an example to describe a feedback device provided in the embodiment of the present application.

Referring to fig. 8, fig. 8 is a structural diagram of a feedback device according to an embodiment of the present disclosure.

As shown in fig. 8, the feedback device 800 includes:

a first receiving module 801, configured to receive first downlink control information DCI, where the first DCI is used to schedule T physical downlink shared channels PDSCH;

a first sending module 802, configured to send, by the terminal, feedback information corresponding to R PDSCH subsets on M physical uplink control channels PUCCH;

dividing the PDSCH subsets based on the number of time units corresponding to the single PDSCH subset;

dividing the PDSCH subset based on the indication of the network side equipment;

partitioning the PDSCH subset based on the processing time of the PDSCH;

the number of time units occupied by a single PDSCH subset;

the number of time units spanned by a single PDSCH subset.

Optionally, the feedback apparatus further includes:

a second receiving module, configured to receive a time domain resource allocation table, where the time domain resource allocation table includes at least one row, each row includes at least one time domain resource allocation record, and the time domain resource allocation records correspond to PDSCHs one to one;

dividing the PDSCH subset based on a second object included in the ith row.

Optionally, the second object is any one of:

the number of PDSCHs each PDSCH subset includes.

Optionally, the feedback apparatus further comprises:

a third receiving module, configured to receive a PDSCH subset partition information list, where the PDSCH subset partition information list includes at least one PDSCH subset partition manner, and each PDSCH subset partition manner indicates one piece of the third information;

Optionally, the feedback apparatus further includes:

a first determining module, configured to determine a first PUCCH according to first information and second information corresponding to a first PDSCH subset, where the first PUCCH is used to send feedback information corresponding to the first PDSCH subset;

Optionally, the feedback apparatus further includes:

a fourth receiving module, configured to receive the second DCI;

a second determining module, configured to determine, by the terminal according to the second DCI, the first information corresponding to the first PDSCH subset;

wherein the second DCI is to indicate any one of:

one of said first information;

the first information corresponding to each PDSCH subset.

Optionally, in a case that the second DCI indicates one piece of the first information, the first information indicated by the second DCI corresponds to any one of: each PDSCH subset of the R PDSCH subsets; one PDSCH subset of the R PDSCH subsets.

Optionally, the feedback apparatus further comprises:

a fifth receiving module, configured to receive a first list, where the first list includes at least one row, and each row includes at least one piece of the first information;

Optionally, the feedback apparatus further comprises:

a sixth receiving module, configured to receive a third DCI;

a third determining module, configured to determine, according to the third DCI, the second information corresponding to the first PDSCH subset;

wherein the third DCI is to indicate any one of:

one of said second messages;

the second information corresponding to each PDSCH subset.

Optionally, the first sending module is specifically configured to:

under the condition that the bit number of feedback information carried by the first PUCCH is greater than a first preset threshold value, sending first feedback information on the first PUCCH, and sending second feedback information on a second PUCCH, wherein the first feedback information is feedback information corresponding to a first part of PDSCH included in the first PDSCH subset, and the second feedback information is feedback information corresponding to a second part of PDSCH included in the first PDSCH subset;

and the time unit of the second PUCCH is positioned behind the time unit of the first PUCCH, and the bit number of the feedback information carried by the first PUCCH and the second PUCCH is less than or equal to the first preset threshold.

The feedback device 800 provided in the embodiment of the present application can implement each process implemented in the embodiment of the method in fig. 2, and achieve the same technical effect, and for avoiding repetition, details are not described here again.

Referring to fig. 9, fig. 9 is a second structural diagram of a feedback device provided in the embodiment of the present application.

As shown in fig. 9, the feedback device 900 includes:

a second sending module 901, configured to send, in a first time unit, a first part of feedback information included in third feedback information and send, in a second time unit, a second part of feedback information included in the third feedback information when it is detected that a bit number of the third feedback information carried in the first time unit is greater than a second preset threshold;

The feedback device 900 provided in this embodiment of the application can implement each process implemented in the method embodiment of fig. 5, and achieve the same technical effect, and for avoiding repetition, details are not repeated here.

Referring to fig. 10, fig. 10 is a third structural diagram of a feedback device provided in an embodiment of the present application.

As shown in fig. 10, the feedback apparatus 1000 includes:

a third sending module 1001, configured to send first downlink control information DCI, where the first DCI is used to schedule T physical downlink shared channels PDSCH;

a seventh receiving module 1002, configured to receive feedback information corresponding to R PDSCH subsets on M physical uplink control channels PUCCH;

partitioning the PDSCH subset based on the processing time of the PDSCH;

the number of time units occupied by a single PDSCH subset;

the number of time units spanned by a single PDSCH subset.

Optionally, the feedback apparatus further includes:

a fourth sending module, configured to send a time domain resource allocation table, where the time domain resource allocation table includes at least one row, each row includes at least one time domain resource allocation record, and the time domain resource allocation records correspond to the PDSCHs one to one;

the partitioning of the PDSCH subsets based on the indication of the network side device comprises:

dividing the PDSCH subset based on a second object included in the ith row.

Optionally, the second object is any one of:

first configuration information, configured to configure a PDSCH subset number corresponding to each time domain resource allocation record in the ith row;

second configuration information, configured to configure an indication bit corresponding to each time domain resource allocation record in the ith row, where the indication bit corresponding to the first time domain resource allocation record is used to indicate whether the first time domain resource allocation record and the second time domain resource allocation record belong to the same PDSCH subset, the second time domain resource allocation record is a previous time domain resource allocation record of the first time domain resource allocation record, and the first time domain resource allocation record is any other time domain resource allocation record except the first time domain resource allocation record in the T time domain resource allocation records;

the number of PDSCHs each PDSCH subset includes.

Optionally, the feedback apparatus further comprises:

a fifth sending module, configured to send a PDSCH subset partition information list, where the PDSCH subset partition information list includes at least one PDSCH subset partition manner, and each PDSCH subset partition manner indicates one piece of the third information;

Optionally, the feedback apparatus further includes:

a fourth determining module, configured to determine a first PUCCH according to first information and second information corresponding to a first PDSCH subset, where the first PUCCH is used to send feedback information corresponding to the first PDSCH subset;

Optionally, the feedback apparatus further includes:

a sixth transmitting module, configured to transmit the second DCI;

wherein the second DCI is to indicate any one of:

one of said first information;

the first information corresponding to each PDSCH subset.

Optionally, the feedback apparatus further includes:

a seventh sending module, configured to send a first list, where the first list includes at least one row, and each row includes at least one piece of the first information;

Optionally, the feedback apparatus further includes:

a seventh transmitting module, configured to transmit a third DCI;

wherein the third DCI is to indicate any one of:

one of said second messages;

the second information corresponding to each PDSCH subset.

Optionally, the seventh receiving module is specifically configured to:

the network side device receives first feedback information on a first PUCCH and receives second feedback information on a second PUCCH under the condition that the number of bits of the feedback information carried by the first PUCCH is larger than a first preset threshold value, wherein the first feedback information is feedback information corresponding to a first part of PDSCH included in the first PDSCH subset, and the second feedback information is feedback information corresponding to a second part of PDSCH included in the first PDSCH subset;

The feedback device 1000 provided in this embodiment of the present application can implement each process implemented in the embodiment of the method in fig. 6, and achieve the same technical effect, and for avoiding repetition, details are not repeated here.

Referring to fig. 11, fig. 11 is a fourth structural diagram of a feedback device according to an embodiment of the present disclosure.

As shown in fig. 11, the feedback apparatus 1100 includes:

an eighth receiving module 1101, configured to send, in a first time unit, a first part of feedback information included in third feedback information and send, in a second time unit, a second part of feedback information included in the third feedback information when it is detected that a bit number of the third feedback information carried in the first time unit is greater than a second preset threshold;

The feedback device 1100 provided in the embodiment of the present application can implement each process implemented in the embodiment of the method in fig. 7, and achieve the same technical effect, and is not described here again to avoid repetition.

The virtual device in the embodiment of the present application may be a device, a device or an electronic apparatus having an operating system, or may be a component, an integrated circuit, or a chip in a terminal. The device or the electronic equipment can be a mobile terminal or a non-mobile terminal. By way of example, the mobile terminal may include, but is not limited to, the type of the terminal 11 listed above, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a television (television), a teller machine (TV), a self-service machine (kiosk), or the like, and the embodiments of the present application are not limited in particular.

The virtual device provided in the embodiment of the present application can implement each process implemented by the method embodiments of fig. 2, 5 to 6, and achieve the same technical effect, and is not described here again to avoid repetition.

Optionally, as shown in fig. 12, an embodiment of the present application further provides a communication device 1200, which includes a processor 1201, a memory 1202, and a program or an instruction stored in the memory 1202 and executable on the processor 1201, for example, when the communication device 1200 is a terminal, the program or the instruction is executed by the processor 1201 to implement each process of the feedback method embodiment corresponding to fig. 2 or fig. 5, and the same technical effect can be achieved. When the communication device 1200 is a network-side device, the program or the instruction is executed by the processor 1201 to implement each process of the feedback method embodiment corresponding to fig. 6 or fig. 7, and the same technical effect can be achieved, and in order to avoid repetition, details are not repeated here.

An embodiment of the present application further provides a terminal, including a processor and a communication interface, where the communication interface is configured to execute any one of the following:

The terminal embodiment corresponds to the terminal-side method embodiment, and all implementation processes and implementation manners of the method embodiment can be applied to the terminal embodiment and can achieve the same technical effect. Specifically, fig. 13 is a schematic diagram of a hardware structure of a terminal for implementing the embodiment of the present application.

The terminal 1300 includes but is not limited to: a radio frequency unit 1301, a network module 1302, an audio output unit 1303, an input unit 1304, a sensor 1305, a display unit 1306, a user input unit 1307, an interface unit 1308, a memory 1309, a processor 1310, and the like.

Those skilled in the art will appreciate that terminal 1300 may also include a power supply (e.g., a battery) for powering the various components, which may be logically coupled to processor 1310 via a power management system to manage charging, discharging, and power consumption management functions via the power management system. Drawing (A)13The terminal structures shown in the figures do not constitute limitations of the terminal, which may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components may be used and will not be described again.

It should be understood that in the embodiment of the present application, the input Unit 1304 may include a Graphics Processing Unit (GPU) 13041 and a microphone 13042, and the Graphics processor 13041 processes image data of still pictures or videos obtained by an image capturing apparatus (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1306 may include a display panel 13061, and the display panel 13061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1307 includes a touch panel 13071 and other input devices 13072. A touch panel 13071, also referred to as a touch screen. The touch panel 13071 may include two parts, a touch detection device and a touch controller. Other input devices 13072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

In this embodiment of the application, the radio frequency unit 1301 receives downlink data from a network side device and then processes the downlink data to the processor 1130; in addition, the uplink data is sent to the network side equipment. In general, radio unit 1301 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 1309 may be used to store software programs or instructions as well as various data. The memory 1309 may mainly include a stored program or instruction area and a stored data area, wherein the stored program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the Memory 1309 may include a high-speed random access Memory, and may also include a nonvolatile Memory, where the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 1130 may include one or more processing units; alternatively, processor 1130 may integrate an application processor that handles primarily the operating system, user interface, and applications or instructions, etc. with a modem processor that handles primarily wireless communications, such as a baseband processor. It is to be appreciated that the modem processor described above may not be integrated into processor 1130.

Wherein, the radio frequency unit 101 is configured to perform any one of the following:

under the condition that the bit number of third feedback information carried in a first time unit is detected to be larger than a second preset threshold value, sending a first part of feedback information included in the third feedback information in the first time unit, and sending a second part of feedback information included in the third feedback information in a second time unit; and the second time unit is located after the first time unit, and the bit numbers of the feedback information carried in the first time unit and the second time unit are both smaller than or equal to the second preset threshold.

It should be noted that, in this embodiment, the terminal 1300 may implement each process in the method embodiment corresponding to fig. 2 or fig. 5 in the embodiment of the present application and achieve the same beneficial effect, and for avoiding repetition, details are not repeated here.

An embodiment of the present application further provides a network side device, which includes a processor and a communication interface, where the communication interface is used in any one of the following:

The embodiment of the network side device corresponds to the embodiment of the method of the network side device, and all implementation processes and implementation manners of the embodiment of the method can be applied to the embodiment of the network side device and can achieve the same technical effect.

Specifically, the embodiment of the application further provides a network side device. As shown in fig. 14, the network device 1400 includes: antenna 141, radio frequency device 142, baseband device 143. The antenna 141 is connected to the radio frequency device 142. In the uplink direction, the rf device 142 receives information through the antenna 141 and transmits the received information to the baseband device 143 for processing. In the downlink direction, the baseband device 143 processes information to be transmitted and transmits the processed information to the rf device 142, and the rf device 142 processes the received information and transmits the processed information through the antenna 141.

The above-mentioned band processing means may be located in the baseband device 143, and the method performed by the network side device in the above embodiment may be implemented in the baseband device 143, where the baseband device 143 includes the processor 144 and the memory 145.

The baseband device 143 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 14, wherein one of the chips, for example, the processor 144, is connected to the memory 145 to call the program in the memory 145 to perform the network device operation shown in the above method embodiment.

The baseband device 143 may further include a network interface 146 for exchanging information with the radio frequency device 142, for example, a Common Public Radio Interface (CPRI).

Specifically, the network side device of the embodiment of the present invention further includes: the instructions or programs stored in the memory 145 and capable of being executed on the processor 144, and the processor 144 invokes the instructions or programs in the memory 145 to execute the methods executed by the modules shown in fig. 10 or fig. 11, and achieve the same technical effects, which are not described herein in detail to avoid repetition.

Embodiments of the present application further provide a readable storage medium, on which a program or an instruction is stored, and when the program or the instruction is executed by a processor, the program or the instruction implements the operations corresponding to fig. 2 and fig. 5 to fig. 7FeedbackThe processes of the method embodiment can achieve the same technical effects, and are not described herein again to avoid repetition.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement the method shown in fig. 2 and fig. 5 to fig. 7Trans form Feed deviceThe processes of the method embodiment can achieve the same technical effect, and are not described herein again to avoid repetition.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A feedback method, comprising:

2. The method of claim 1, wherein the R PDSCH subsets are partitioned based on a first rule, wherein the first rule is any one of:

partitioning the PDSCH subset based on the processing time of the PDSCH;

3. The method of claim 2, wherein the number of time units for the single PDSCH subset is any one of:

the number of time units occupied by a single PDSCH subset;

the number of time units spanned by a single PDSCH subset.

4. The method according to claim 2, wherein before the terminal receives the first downlink control information DCI, the method further comprises:

dividing the PDSCH subset based on a second object included in the ith row.

5. The method of claim 4, wherein the second object is any one of:

6. The method of claim 2, wherein the partitioning the PDSCH subsets based on the indication of the network side device comprises:

number of PDSCHs included in each PDSCH subset.

7. The method according to claim 6, wherein before the terminal receives the first downlink control information DCI, the method further comprises:

the terminal receives a PDSCH subset division information list, wherein the PDSCH subset division information list comprises at least one PDSCH subset division mode, and each PDSCH subset division mode indicates one piece of third information;

8. The method of claim 1, wherein after a terminal receives first Downlink Control Information (DCI), the terminal sends feedback information corresponding to R PDSCH subsets on M Physical Uplink Control Channels (PUCCHs), and wherein the method further comprises:

9. The method of claim 8, wherein before the terminal determines the first PUCCH according to the first information and the second information corresponding to the first PDSCH subset, the method further comprises:

the terminal receives a second DCI;

wherein the second DCI is to indicate any one of:

one of said first information;

the first information corresponding to each PDSCH subset.

10. The method of claim 9, wherein if the second DCI indicates one piece of the first information, the first information indicated by the second DCI corresponds to any one of: each PDSCH subset of the R PDSCH subsets; one PDSCH subset of the R PDSCH subsets.

11. The method of claim 9, wherein before the terminal receives a second DCI if the second DCI indicates the first information corresponding to each PDSCH subset, the method further comprises:

the second DCI indicates a j-th row of the first list, where the j-th row includes R pieces of the first information, the R pieces of the first information are in one-to-one correspondence with the R PDSCH subsets, and j is a natural number.

12. The method of claim 8, wherein before the terminal determines the first PUCCH according to the first information and the second information corresponding to the first PDSCH subset, the method further comprises:

the terminal receives a third DCI;

wherein the third DCI is to indicate any one of:

one of said second messages;

the second information corresponding to each PDSCH subset.

13. The method of claim 12, wherein in a case that the third DCI indicates one piece of the second information, the second information indicated by the third DCI corresponds to any one of: each PDSCH subset of the R PDSCH subsets; one PDSCH subset of the R PDSCH subsets.

14. The method of claim 1, wherein the terminal sends feedback information corresponding to R PDSCH subsets on M physical uplink control channels, PUCCHs, and comprises:

15. A feedback method, comprising:

16. A feedback method, comprising:

17. The method of claim 16, wherein the R PDSCH subsets are partitioned based on a first rule, wherein the first rule is any one of:

partitioning the PDSCH subset based on the processing time of the PDSCH;

18. The method of claim 17, wherein the number of time units for the single PDSCH subset is any one of:

the number of time units occupied by a single PDSCH subset;

the number of time units spanned by a single PDSCH subset.

19. The method of claim 17, wherein before the network side device sends the first downlink control information DCI, the method further comprises:

the network side equipment sends a time domain resource allocation table, wherein the time domain resource allocation table comprises at least one row, each row comprises at least one time domain resource allocation record, and the time domain resource allocation records correspond to PDSCHs one by one;

dividing the PDSCH subset based on a second object included in the ith row.

20. The method of claim 19, wherein the second object is any one of:

21. The method of claim 17, wherein the first DCI indicates third information, and wherein the third information is any one of:

the number of PDSCHs each PDSCH subset includes.

22. The method of claim 21, wherein before the network side device sends the first downlink control information DCI, the method further comprises:

23. The method according to claim 16, wherein after a network side device sends a first downlink control information DCI to a terminal, before the network side device receives feedback information corresponding to R PDSCH subsets on M physical uplink control channels PUCCH, the method further comprises:

24. The method of claim 23, wherein before the network side device determines the first PUCCH according to the first information and the second information corresponding to the first PDSCH subset, the method further comprises:

the network side equipment sends second DCI;

wherein the second DCI is to indicate any one of:

one of said first information;

the first information corresponding to each PDSCH subset.

25. The method of claim 24, wherein in a case that the second DCI indicates one of the first information, the first information indicated by the second DCI corresponds to any one of: each PDSCH subset of the R PDSCH subsets; one PDSCH subset of the R PDSCH subsets.

26. The method of claim 24, wherein before the network side device transmits second DCI if the second DCI indicates the first information corresponding to each PDSCH subset, the method further comprises:

27. The method of claim 23, wherein before the network side device determines the first PUCCH according to the first information and the second information corresponding to the first PDSCH subset, the method further comprises:

the network side equipment sends a third DCI;

wherein the third DCI is to indicate any one of:

one of said second messages;

the second information corresponding to each PDSCH subset.

28. The method of claim 26, wherein in a case that the third DCI indicates one piece of the second information, the second information indicated by the third DCI corresponds to any one of: the R PDSCH subsets; one PDSCH subset of the R PDSCH subsets.

29. The method of claim 23, wherein the network side device receives feedback information corresponding to R PDSCH subsets on M physical uplink control channels, PUCCHs, and comprises:

30. A feedback method, comprising:

and the second time unit is located after the first time unit, and the bit numbers of the feedback information carried in the first time unit and the second time unit are both smaller than or equal to the second preset threshold.

31. A feedback apparatus, comprising:

32. The feedback apparatus of claim 31, wherein the R PDSCH subsets are partitioned based on a first rule, wherein the first rule is any one of:

partitioning the PDSCH subset based on the processing time of the PDSCH;

33. The feedback apparatus of claim 31, further comprising:

34. The feedback apparatus according to claim 33, wherein the first sending module is specifically configured to:

35. A feedback apparatus, comprising:

36. A feedback apparatus, comprising:

37. A feedback apparatus, comprising:

38. A terminal comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the feedback method of any one of claims 1 to 13 or the steps of the feedback method of claim 14.

39. A network-side device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the feedback method according to any one of claims 15 to 29, or the steps of the feedback method according to claim 30.

40. A readable storage medium, characterized in that a program or instructions are stored thereon, which program or instructions, when executed by a processor, carry out the steps of the feedback method according to any one of claims 1 to 13, or the steps of the feedback method according to claim 14, or the steps of the feedback method according to any one of claims 15 to 29, or the steps of the feedback method according to claim 30.