CN116938397A

CN116938397A - Method and device for determining hybrid automatic repeat request acknowledgement codebook and communication equipment

Info

Publication number: CN116938397A
Application number: CN202210365511.8A
Authority: CN
Inventors: 李娜
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2023-10-24

Abstract

The application discloses a method, a device and communication equipment for determining a hybrid automatic repeat request acknowledgement codebook, which belong to the technical field of communication, and the method for determining the hybrid automatic repeat request acknowledgement codebook comprises the following steps: the communication device determining a first set of time slot timing values; the communication equipment respectively determines candidate PDSCH receiving opportunities in the time slots corresponding to each time slot time sequence value in the first time slot time sequence value set; the number of candidate PDSCH receiving opportunities in a first time slot is larger than 1, and the position of the HARQ-ACK information of a first unicast PDSCH in a HARQ-ACK codebook and the position of the HARQ-ACK information of a first multicast PDSCH in the HARQ-ACK codebook correspond to different candidate PDSCH receiving opportunities in the first time slot respectively; the communication device determines the HARQ-ACK codebook according to a first set of candidate PDSCH reception opportunities, wherein the first set of candidate PDSCH reception opportunities includes candidate PDSCH reception opportunities within a slot corresponding to each slot timing value in the first set of slot timing values.

Description

Method and device for determining hybrid automatic repeat request acknowledgement codebook and communication equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a method and a device for determining a hybrid automatic repeat request acknowledgement codebook and communication equipment.

Background

In existing mobile communication technologies, multicast physical downlink shared channels (Physical Downlink Shared Channel, PDSCH) and unicast PDSCH may be frequency division multiplexed (Frequency Division Multiplexing, FDM). When a User Equipment (UE) configures a type-one codebook (i.e., type 1 codebook) generated in an FDM manner, the UE generates sub-codebooks of a unicast PDSCH and a multicast PDSCH, respectively, and concatenates the sub-codebooks of the unicast PDSCH and the multicast PDSCH to obtain a final codebook. However, when the UE supports the unicast PDSCH and the multicast PDSCH of FDM, a certain Time slot, either only one unicast PDSCH and one multicast PDSCH of FDM, or only one PDSCH of Time-division multiplexing (Time-Division Multiplexing, TDM), that is, a TDM and FDM multiplexing manner does not occur simultaneously in a Time slot, which results in that the type 1codebook generated by the existing manner of re-concatenating sub-codebooks respectively constructing the unicast PDSCH and the multicast PDSCH may generate unnecessary redundancy bits, resulting in an excessively large codebook.

Disclosure of Invention

The embodiment of the application provides a method and a device for determining a hybrid automatic repeat request acknowledgement codebook and communication equipment, which can reduce the size of a constructed FDM type 1codebook and save HARQ feedback resources.

In a first aspect, a method for determining a hybrid automatic repeat request acknowledgement codebook is provided, the method comprising:

the communication device determining a first set of time slot timing values;

the communication equipment respectively determines candidate PDSCH receiving opportunities in the time slots corresponding to each time slot time sequence value in the first time slot time sequence value set; the number of candidate PDSCH receiving opportunities in a first time slot is larger than 1, the position of hybrid automatic repeat request acknowledgement (HARQ-ACK) information of a first unicast PDSCH in an HARQ-ACK codebook and the position of HARQ-ACK information of a first multicast PDSCH in the HARQ-ACK codebook correspond to different candidate PDSCH receiving opportunities in the first time slot respectively, the first unicast PDSCH and the first multicast PDSCH are unicast PDSCH and multicast PDSCH which are frequency division multiplexed in the first time slot, the first time slot is a time slot corresponding to a first time slot time sequence value, and the first time slot time sequence value is a time slot time sequence value in the first time slot time sequence value set;

the communication device determines the HARQ-ACK codebook according to a first set of candidate PDSCH reception opportunities, wherein the first set of candidate PDSCH reception opportunities includes candidate PDSCH reception opportunities within a slot corresponding to each slot timing value in the first set of slot timing values.

In a second aspect, there is provided a hybrid automatic repeat request acknowledgement codebook determining apparatus, the apparatus comprising:

a first determining module, configured to determine a first set of time slot timing values;

a second determining module, configured to determine candidate PDSCH receiving opportunities in timeslots corresponding to each timeslot timing value in the first set of timeslot timing values respectively; the number of candidate PDSCH receiving opportunities in a first time slot is larger than 1, the position of hybrid automatic repeat request acknowledgement (HARQ-ACK) information of a first unicast PDSCH in an HARQ-ACK codebook and the position of HARQ-ACK information of a first multicast PDSCH in the HARQ-ACK codebook correspond to different candidate PDSCH receiving opportunities in the first time slot respectively, the first unicast PDSCH and the first multicast PDSCH are unicast PDSCH and multicast PDSCH which are frequency division multiplexed in the first time slot, the first time slot is a time slot corresponding to a first time slot time sequence value, and the first time slot time sequence value is a time slot time sequence value in the first time slot time sequence value set;

and a third determining module, configured to determine the HARQ-ACK codebook according to a first set of candidate PDSCH reception occasions, where the first set of candidate PDSCH reception occasions includes candidate PDSCH reception occasions in timeslots corresponding to each of the first set of timeslot timing values.

In a third aspect, there is provided a communication device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction when executed by the processor implementing the steps of the method according to the first aspect.

In a fourth aspect, a communication device is provided, including a processor and a communication interface, where the processor is configured to determine a first set of time slot timing values; respectively determining candidate PDSCH receiving opportunities in the time slots corresponding to each time slot time sequence value in the first time slot time sequence value set; the number of candidate PDSCH receiving opportunities in a first time slot is larger than 1, the position of hybrid automatic repeat request acknowledgement (HARQ-ACK) information of a first unicast PDSCH in an HARQ-ACK codebook and the position of HARQ-ACK information of a first multicast PDSCH in the HARQ-ACK codebook correspond to different candidate PDSCH receiving opportunities in the first time slot respectively, the first unicast PDSCH and the first multicast PDSCH are unicast PDSCH and multicast PDSCH which are frequency division multiplexed in the first time slot, the first time slot is a time slot corresponding to a first time slot time sequence value, and the first time slot time sequence value is a time slot time sequence value in the first time slot time sequence value set; and determining the HARQ-ACK codebook according to a first candidate PDSCH receiving occasion set, wherein the first candidate PDSCH receiving occasion set comprises candidate PDSCH receiving occasions in time slots corresponding to each time slot time sequence value in the first time slot time sequence value set.

In a fifth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor realizes the steps of the method according to the first aspect.

In a sixth aspect, there is provided a chip comprising a processor and a communication interface coupled to the processor for running a program or instructions implementing the steps of the method according to the first aspect.

In a seventh aspect, there is provided a computer program or program product stored in a non-volatile storage medium, the program or program product being executable by at least one processor to perform the steps of the method according to the first aspect.

In the embodiment of the application, the communication device directly constructs the HARQ-ACK codebook, namely, the type 1codebook according to the candidate PDSCH receiving time set which can simultaneously comprise the candidate PDSCH receiving time corresponding to the frequency division multiplexing unicast PDSCH and the candidate PDSCH receiving time corresponding to the multicast PDSCH, compared with the prior art that the sub-codebook of the unicast PDSCH and the sub-codebook of the multicast PDSCH are respectively constructed according to the candidate PDSCH receiving time set corresponding to the frequency division multiplexing unicast PDSCH and the candidate PDSCH receiving time set corresponding to the multicast PDSCH, and then the sub-codebook of the unicast PDSCH and the sub-codebook of the multicast PDSCH are cascaded to construct the type 1codebook, redundant bits can be effectively reduced, and the size of the constructed FDM type 1codebook (namely, the type 1codebook generated according to the FDM mode) is further reduced, and HARQ feedback resources are saved.

Drawings

Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;

fig. 2 is a schematic diagram of a TDRA table and a candidate PDSCH reception occasion corresponding to the TDRA table according to an embodiment of the present application;

FIG. 3 is a block diagram of a method according to an embodiment of the application ₁ Schematic diagram of feedback window of the set-determined HARQ-ACKs;

fig. 4a is a schematic diagram of a candidate PDSCH reception opportunity and uplink symbol non-collision provided in an embodiment of the present application;

fig. 4b is a schematic diagram of a candidate PDSCH reception occasion obtained after performing an operation of generating only one HARQ-ACK bit for overlapping candidate PDSCH reception occasions according to an embodiment of the present application;

fig. 5a is a schematic diagram of a candidate PDSCH reception opportunity and uplink symbol collision provided in an embodiment of the present application;

fig. 5b is a schematic diagram of another candidate PDSCH reception occasion obtained after performing an operation of generating only one HARQ-ACK bit for overlapping candidate PDSCH reception occasions according to an embodiment of the present application;

fig. 6 is a flowchart of a method for determining a hybrid automatic repeat request acknowledgement codebook according to an embodiment of the present application;

fig. 7 is a schematic diagram of a TDRA table corresponding to unicast DCI and a candidate PDSCH reception occasion corresponding to the TDRA table according to an embodiment of the present application;

Fig. 8 is a schematic diagram of a TDRA table corresponding to multicast DCI and a candidate PDSCH reception occasion corresponding to the TDRA table according to an embodiment of the present application;

fig. 9 is a block diagram of a hybrid automatic repeat request acknowledgement codebook determining apparatus according to an embodiment of the present application;

fig. 10 is a block diagram of a communication device provided by an embodiment of the present application;

fig. 11 is a block diagram of a terminal according to an embodiment of the present application;

fig. 12 is a block diagram of a network side device according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms first, second and the like in the description and in the claims, 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 sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

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

Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be called a terminal Device or a User Equipment (UE), and the terminal 11 may be a terminal-side Device such as a mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer) or a notebook (Personal Digital Assistant, PDA), a palm Computer, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet Device (Mobile Internet Device, MID), a Wearable Device (or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and the Wearable Device includes: smart watches, bracelets, headphones, eyeglasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may be a base station or a core network, wherein the base station may be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, 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 the specific type of the base station is not limited.

For easy understanding, the following description will explain the related content related to the embodiments of the present application:

fifteenth version (Release 15, R15)/sixteenth version (Release 15, R16) semi-static hybrid automatic repeat request acknowledgement (Hybrid Automatic Repeat request Acknowledgment, HARQ-ACK) (i.e., type 1 codebook):

the entirety of HARQ-ACK information fed back by the UE on one HARQ-ACK feedback resource (physical uplink control channel (Physical Uplink Control Channel, PUCCH) or physical uplink shared channel (Physical Uplink Sharing Channel, PUSCH)) is referred to as HARQ-ACK codebook.

There are 4 types of downlink data requiring feedback HARQ-ACK feedback:

PDSCH；

a physical downlink control channel (Physical Downlink Shared Channel, PDCCH) for Downlink (DL) Semi-persistent scheduling (Semi-Persistent Scheduling, SPS) release;

PDCCH for indicating secondary cell dormancy (Scell dormant);

PDCCH for triggering HARQ-ACK feedback.

Timing parameter K ₁ : or slot timing value, for representing a slot/sub-slot offset value between PDSCH and its corresponding feedback resource (PUCCH/PUSCH). Specifying or predefining K by radio resource control (Radio Resource Control, RRC) ₁ The possible set then indicates a value by the field of the PDSCH corresponding scheduling downlink control information (Downlink Control Information, DCI).

The size of the HARQ-ACK semi-static codebook (which may also be referred to as a type1 codebook) is independent of the actual scheduling situation, and is determined by RRC configuration or predefined parameters. When RRC parameter pdsch-HARQ-ACK-codebook=semi-static, i.e. configured as a semi-static Codebook, also referred to as type1Codebook.

The determination of the semi-static codebook comprises the following steps:

step S1, determining a candidate PDSCH receiving time set: and feeding back an actual time unit (such as slot/sub-slot) n) for the designated HARQ ACK, and corresponding to an activated downlink Bandwidth Part (BWP) in each service cell, and collecting all downlink data needing HARQ ACK feedback. Is determined by the following parameters:

a) Activating a set of upstream BWP-associated slot timing values (i.e., K ₁ A collection).

If the UE is configured to detect DCI format 1-0 on serving cell c and is not configured to detect DCI format 1-1, then K ₁ The aggregate is {1, 2, 3, 4, 5 ],6、7、8}；

If the UE is configured to detect DCI format 1-1 on serving cell c, K ₁ The set is provided by the higher layer parameter dl-DataToUL-ACK.

b) The table of set 1 is a high-level time domain allocation parameter PDSCH-timedomainalllocation list associated with the active downlink BWP defined by PDSCH-ConfigCommon or a default time domain resource allocation (Time Domain Resource Assignment, TDRA) table, or a joint indication of set 1 and set 2, and set 2 is a high-level time domain allocation parameter PDSCH-timedomainalllocation list indicated by PDSCH-Config, the TDRA table includes K0, start and length indications (Start and Length Indication Value, SLIV) and PDSCH mapping type (PDSCH mapping type).

It should be noted that this step also depends on whether the UE is capable of receiving multiple PDSCH in one slot, if the UE is not capable of receiving multiple PDSCH, then there is only one PDSCH reception occasion per slot (PDSCH reception occasion), otherwise it is determined according to a rule from the TDRA table.

c) A Subcarrier spacing (SCS) ratio of activated uplink and downlink BWP.

d) Uplink and downlink configuration parameters of high-level time division duplex (Time Division Duplex, TDD): the configuration parameters tdd-UL-DL-configuration command and the configuration parameters tdd-UL-DL-configuration indicated which symbols are uplink and which symbols are downlink.

Specifically, the method comprises the steps of determining a set of time slot sequence values (namely K ₁ Set) and HARQ ACK feedback actual time units (slot-slot n), and candidate slot positions of PDSCH are obtained. Note that, when the uplink and downlink subcarrier intervals are different, the time slot timing value set K associated with the active uplink BWP is not the same as that described above ₁ And HARQ ACK feedback actual time units (slot/sub-slot n), and further comprises an uplink and downlink BWP subcarrier spacing.

And comparing with the uplink and downlink configuration of the TDD, and determining that the candidate time slot position of the PDSCH is effective.

And according to the TDRA table associated with the activated downlink BWP, obtaining a line with non-overlapping time domain resources, and considering only 1 line of the overlapped lines, namely, the overlapped line corresponds to the same candidate PDSCH receiving position.

For example, assuming that the K1 set of RRC configurations is {5,6,7}, the TDRA table of PDSCH is shown in fig. 2. Wherein RIX represents a row with a row index X, which is a positive integer.

Step S11 according to K ₁ The set determines the feedback window for the HARQ-ACK. As shown in fig. 3, when the uplink and downlink subcarrier intervals are the same, the HARQ ACK feedback actual time unit is slot n+9, and the corresponding PDSCH candidate slot positions are slot n+2, slot n+3, and slot n+4.

Step S12 for each K ₁ And determining a candidate PDSCH receiving time set in each slot.

Step S121, excluding candidate PDSCH receiving opportunities in the TDRA table overlapping with the uplink symbols of the TDD-UL-DL-ConfigurationCommon and the TDD-UL-DL-ConfigDedimated configuration.

Step S122, for the overlapped candidate PDSCH reception opportunities, generates only 1 HARQ-ACK bit (bit) position.

Specifically, the row with the smallest ending symbol in the TDRA table is found first (note that, here, the row in the TDRA does not include a row overlapping with the UL symbol configured by the TDD uplink row), the smallest ending symbol is assumed to be m, then all rows in the table are traversed, and if the starting symbol (assumed to be s) corresponding to a certain row is less than or equal to m, that is, s < = m, the row and the row with the smallest ending symbol correspond to the same candidate PDSCH receiving position. The TDRA excludes the line corresponding to the same candidate PDSCH reception position. Repeating the steps until the PDSCH receiving positions corresponding to all the rows are determined.

Specifically, as shown in FIG. 4a, for K ₁ In the case of =7, the corresponding candidate slot position of PDSCH is slot n+2, and all candidate PDSCH reception opportunities in the slot do not collide with the uplink symbol, so they can be reserved, as shown in fig. 4b, and the candidate PDSCH reception opportunity set corresponding to slot n+2 can be obtained as M1 through the processing in step S122 _A,c = {0,1,2,3,4}. Wherein, the same numbers in the figures indicate rows corresponding to the same candidate PDSCH receiving time, i.e. there are multiple rows corresponding to the same candidatePDSCH reception timing.

As shown in fig. 5a, for K ₁ In the case of=6, the corresponding PDSCH candidate slot position is slot n+3, and it is assumed that TDD-UL-DL-configuration common and TDD-UL-DL-configuration decoded configure uplink and downlink symbols in the slot as ddddddddddddffuu, where D represents DL symbols, F represents Flexible (Flexible) symbols, U represents UL symbols, i.e., symbols 0 to 9 are DL symbols, symbols 10 to 11 are Flexible symbols, and symbols 12 to 13 are UL symbols, candidate PDSCH reception opportunities with number 2,3,8 in the slot overlap with uplink symbols, and thus are excluded, and as shown in fig. 5b, the set of candidate PDSCH reception opportunities corresponding to slot+3 is obtained by processing in step S122 as M2 _A,c = {5,6,7,8}. Wherein like numerals indicate rows corresponding to the same candidate PDSCH reception timing.

For K ₁ In the case of=5, the corresponding PDSCH candidate slot position is slot n+4, and all candidate PDSCH reception occasions overlap with uplink symbols and are therefore excluded, assuming that all symbols in the slot are configured as UL symbols by TDD-UL-DL-configuration common and TDD-UL-DL-configdedided.

To sum up, the candidate PDSCH receiving time set is M _A,c ＝{0,1,2,3,4,5,6,7,8}。

And S2, determining HARQ-ACK information.

If there is no scheduled PDSCH reception (PDSCH reception) in the determined candidate PDSCH reception opportunity set, the UE feeds back a NACK.

If the PDSCH reception opportunity set of the candidate PDSCH is not indicated to the PDSCH reception of the current time slot feedback, the UE feeds back NACK.

If the feedback windows of PDSCH overlap, the ACK is fed back at the position indicated by DCI format 1-0 or DCI format 1-1, and the NACK is fed back at other positions.

And for the candidate PDSCH receiving time set with ACK/NACK feedback, determining an HARQ-ACK codebook jointly according to the number of the candidate PDSCH sets of each cell and the RRC configured cells, the HARQ space binding parameter, the Code Block Group (CBG) configuration parameter and the maximum codeword (coded) parameter supported by each cell, which are obtained in the step S1, wherein each candidate PDSCH receiving position possibly corresponds to at most 1 bit of HARQ-ACK information.

Illustratively, if codewords=1, no CBG transmission (no CBG Transmission), then 1bit is fed back: TB1 HARQ-ACK;

if codewords=1, CBG Transmission (CBG Transmission), the maximum CBG number bit is fed back (max CBG number bit): TB1 HARQ-ACK;

if codewords=2, no binding (no Bundling), no CBG transmission (no CBG Transmission), then 2 bits are fed back: TB1 HARQ-ACK, TB2 HARQ-ACK;

if codewords=2, bind (Bundling), then feedback 1bit: TB1 HARQ-ACK & TB2HARQ-ACK

Codewords=2, no binding, CBG Transmission (CBG Transmission), feedback 2*max CBG number bit: TB1 CBG HARQ-ACK, TB2 CBG HARQ-ACK.

If codewords=2, the ue receives only one PDSCH, then feeds back an ACK in the first TB position, if HARQ spatial bundling is configured, then feeds back a NACK in the second TB position.

Group common PDSCH:

currently, new air-interface (NR) technology has undergone two versions (R15 and R16) of evolution, in which broadcast (broadcast)/multicast (multicast) features have not been supported, but there are many important usage scenarios, such as public safety and mission critical (i.e., public safety and mission critical), internet of vehicles (Vehicle to Everything, V2X) applications (V2X applications), transparent internet protocol version 4 (Internet Protocol version, IPv 4)/internet protocol version 6 (Internet Protocol version, IPv 6) multicast transmission (trans-parent IPv4/IPv6 multicast delivery), internet protocol television (Internet Protocol Television, IPTV), wireless software transmission (software delivery over wireless), multicast/multicast features in group communication and internet of things applications (group communications and IoT applications), etc., which may provide substantial improvements, especially in terms of system efficiency and user experience. Thus, in the next seventeenth version (Release 17, R17), NR will introduce a broadcast/multicast feature.

Broadcast multicast industryThe traffic is transmitted primarily through a group common PDSCH (also may be referred to as a group PDSCH). The UE may receive both a group common PDSCH (including a multicast PDSCH and a broadcast PDSCH) and a unicast PDSCH, where the multicast PDSCH and the unicast PDSCH may be transmitted in a time-division multiplexed manner within one slot, and the number of time-division multiplexed PDSCH may be 2/4/7, depending on the UE capability, or frequency-division multiplexed. Currently, for frequency division multiplexing, only one multicast PDSCH and one unicast PDSCH are supported within one slot. In addition, TDRA table, K of multicast PDSCH and unicast PDSCH ₁ The collection may be configured separately.

R17 semi-static HARQ-ACK codebook (i.e., type 1 codebook):

in R17, when the UE is configured to generate type 1codebook in an FDM manner (for example, configured with parameters fdmed-Reception-Multicast), the UE generates a sub-codebook (sub-codebook) corresponding to the unicast PDSCH and a sub-codebook corresponding to the Multicast PDSCH according to the above method, respectively, and then concatenates the two sub-codebooks to obtain the entire FDM type 1codebook.

The method for determining the hybrid automatic repeat request acknowledgement codebook provided by the embodiment of the application is described in detail below by means of some embodiments and application scenarios thereof with reference to the accompanying drawings.

Referring to fig. 6, fig. 6 is a flowchart of a method for determining a hybrid automatic repeat request acknowledgement codebook according to an embodiment of the present application, where the method may be performed by a communication device, and the communication device may be a terminal or a network side device. As shown in fig. 6, the method for determining the hybrid automatic repeat request acknowledgement codebook according to the embodiment of the present application includes the following steps:

step 601, the communication device determines a first set of time slot timing values.

In this embodiment, the communication device may be a terminal or a network device. The time slot timing value in the first time slot timing value set is used for indicating a time slot offset value or a sub-time slot offset value between a PDSCH and feedback resources corresponding to the PDSCH, where the feedback resources corresponding to the PDSCH may include, but are not limited to, PUCCH or PUSCH. It should be noted that the time slot timing value may also be referred to as a timing parameter K ₁ At the time of the time slotThe sequence value set may also be referred to as K ₁ And (5) collecting.

Alternatively, the first set of time slot timing values may be a set of time slot timing values determined according to at least one of a set of time slot timing values corresponding to unicast DCI and a set of time slot timing values corresponding to multicast DCI. The set of time slot sequence values corresponding to the unicast DCI may be referred to as a set of time slot sequence values corresponding to the unicast PDSCH, and the set of time slot sequence values corresponding to the multicast DCI may be referred to as a set of time slot sequence values corresponding to the multicast PDSCH.

For example, the first set of slot timing values may be a set of slot timing values corresponding to unicast DCI, a set of slot timing values corresponding to multicast DCI, a set of slot timing values corresponding to unicast PDSCH, a set of slot timing values corresponding to multicast PDSCH, or the like. The time slot time sequence value set corresponding to the unicast DCI and the time slot time sequence value set corresponding to the multicast DCI may be determined based on the existing manner, which is not limited in this embodiment.

Step 602, the communication device determines candidate PDSCH receiving opportunities in the timeslots corresponding to each of the timeslot timing values in the first set of timeslot timing values respectively; the number of candidate PDSCH receiving opportunities in the first time slot is greater than 1, the position of hybrid automatic repeat request acknowledgement (HARQ-ACK) information of the first unicast PDSCH in the HARQ-ACK codebook and the position of HARQ-ACK information of the first multicast PDSCH in the HARQ-ACK codebook correspond to different candidate PDSCH receiving opportunities in the first time slot respectively, the first unicast PDSCH and the first multicast PDSCH are unicast PDSCH and multicast PDSCH which are frequency division multiplexed in the first time slot, the first time slot is a time slot corresponding to a first time slot time sequence value, and the first time slot time sequence value is a time slot time sequence value in the first time slot time sequence value set.

The frequency division multiplexed unicast PDSCH and multicast PDSCH are unicast PDSCH and multicast PDSCH transmitted by different frequency domain resources, or unicast PDSCH and multicast PDSCH with non-overlapping frequency domain resources, where time domain resources may overlap.

In this embodiment, the first slot timing value may include any slot timing value in the first slot timing value set, that is, for each slot timing value in the first slot timing value set, the number of candidate PDSCH receiving opportunities in a slot corresponding to the slot timing value is greater than 1, and the position of HARQ-ACK information of a unicast PDSCH in a frequency division multiplexing manner in the slot corresponding to the slot timing value in the HARQ-ACK codebook and the position of HARQ-ACK information of a multicast PDSCH in the HARQ-ACK codebook correspond to different candidate PDSCH receiving opportunities in the slot corresponding to the slot timing value respectively; alternatively, the first slot timing value may include a specific slot timing value in the first slot timing value set, and may be, for example, a slot timing value belonging to an intersection of the slot timing value set corresponding to the unicast PDSCH and the slot timing value set corresponding to the multicast PDSCH in the first slot timing value set.

It may be understood that, for convenience of description, in the following embodiments of the present application, the position of the HARQ-ACK information of the PDSCH in the HARQ-ACK codebook corresponds to a candidate PDSCH receiving timing, which may be simply referred to as PDSCH corresponds to the candidate PDSCH receiving timing. For example, the position of the HARQ-ACK information of the first unicast PDSCH in the HARQ-ACK codebook and the position of the HARQ-ACK information of the first multicast PDSCH in the HARQ-ACK codebook may correspond to different candidate PDSCH reception opportunities in the first slot, which may be simply referred to as the first unicast PDSCH and the first multicast PDSCH corresponding to different candidate PDSCH reception opportunities in the first slot, respectively.

The first unicast PDSCH and the first multicast PDSCH described above are also referred to as the first intra-slot frequency division multiplexed unicast PDSCH and multicast PDSCH. The number of candidate PDSCH reception opportunities in the first time slot is greater than 1, so that when the terminal is configured to construct an HARQ-ACK codebook based on a frequency division multiplexing manner, it can be ensured that the positions of HARQ-ACK information of a unicast PDSCH and a multicast PDSCH in the first time slot in the HARQ-ACK codebook can respectively correspond to different candidate PDSCH reception opportunities in the first time slot.

Alternatively, the number of candidate PDSCH reception occasions in the first slot may be determined according to at least one of a TDRA table corresponding to unicast DCI and a TDRA table corresponding to multicast DCI. The unicast DCI is a DCI format corresponding to the scheduling of the unicast PDSCH, for example, DCI 1_0,1_11_2, etc., and the multicast DCI is a DCI format corresponding to the scheduling of the multicast PDSCH, for example, DCI4_1,4_2, etc. For example, the number of candidate PDSCH reception opportunities in the first slot may be a larger value between 2 and the number of candidate PDSCH reception opportunities in the first slot determined according to the TDRA table corresponding to the unicast DCI, or may be 1 added to the number of candidate PDSCH reception opportunities in the first slot determined according to the TDRA table corresponding to the unicast DCI.

Step 603, the communication device determines the HARQ-ACK codebook according to a first set of candidate PDSCH reception occasions, where the first set of candidate PDSCH reception occasions includes candidate PDSCH reception occasions in timeslots corresponding to each of the timeslot timing values in the first set of timeslot timing values.

In this embodiment, the first candidate PDSCH reception timing set may also be referred to as set M _A,c May include candidate PDSCH reception opportunities within the time slot corresponding to each of the first set of time slot timing values, e.g., the first set of time slot timing values includes K _1,1 、K _1,2 And K _1,3 The three time slot timing values, the first candidate PDSCH receiving time set includes K _1,1 Candidate PDSCH reception opportunities, K, in corresponding slots _1,2 Candidate PDSCH reception opportunities and K in corresponding slots _1,3 Candidate PDSCH reception opportunities within the corresponding slots.

Alternatively, the communication device may determine the HARQ-ACK codebook according to the first set of candidate PDSCH reception occasions in a manner of determining the HARQ-ACK codebook based on the set of candidate PDSCH reception occasions in the prior art. For example, the HARQ-ACK codebook may be determined according to the first candidate PDSCH reception timing set in the manner described in the foregoing step S2.

According to the hybrid automatic repeat request acknowledgement codebook determination method provided by the embodiment of the application, the communication equipment can directly construct the HARQ-ACK codebook, namely the type 1codebook according to the candidate PDSCH receiving time set which can simultaneously comprise the frequency division multiplexing unicast PDSCH and the candidate PDSCH receiving time corresponding to the multicast PDSCH, compared with the prior art that the sub-codebook of the unicast PDSCH and the sub-codebook of the multicast PDSCH are respectively constructed according to the candidate PDSCH receiving time set corresponding to the frequency division multiplexing unicast PDSCH and the candidate PDSCH receiving time set corresponding to the multicast PDSCH, and then the sub-codebook of the unicast PDSCH and the sub-codebook of the multicast PDSCH are cascaded to construct the type 1codebook, thereby effectively reducing redundant bits, further reducing the size of the constructed FDM type 1codebook and saving HARQ feedback resources.

Optionally, in a case where the PDSCH transmitted in the first slot includes the first unicast PDSCH and the first multicast PDSCH, a position of HARQ-ACK information of the first unicast PDSCH in the HARQ-ACK codebook corresponds to a first candidate PDSCH reception occasion in the first slot, and a position of HARQ-ACK information of the first multicast PDSCH in the HARQ-ACK codebook corresponds to a second or last candidate PDSCH reception occasion in the first slot;

Or alternatively

In the case that the PDSCH transmitted in the first slot includes the first unicast PDSCH and the first multicast PDSCH, the position of the HARQ-ACK information of the first multicast PDSCH in the HARQ-ACK codebook corresponds to a first candidate PDSCH reception occasion in the first slot, and the position of the HARQ-ACK information of the first unicast PDSCH in the HARQ-ACK codebook corresponds to a second or last candidate PDSCH reception occasion in the first slot;

or alternatively

In the case that the PDSCH transmitted in the first slot includes the first unicast PDSCH and the first multicast PDSCH, a correspondence between a position of HARQ-ACK information of the PDSCH received in the first slot in the HARQ-ACK codebook and a candidate PDSCH reception occasion in the first slot is determined according to a first symbol of the PDSCH transmitted in the first slot or according to a first frequency domain position of the PDSCH transmitted in the first slot, where the first symbol includes a start symbol or an end symbol, and the first frequency domain position includes a start frequency domain position or an end frequency domain position.

In this embodiment, the PDSCH transmitted in the first slot includes the first unicast PDSCH and the first multicast PDSCH, for example, for a terminal, it may be understood that the PDSCH received in the first slot includes the first unicast PDSCH and the first multicast PDSCH, and for a network device, it may be understood that the PDSCH transmitted in the first slot includes the first unicast PDSCH and the first multicast PDSCH.

In an embodiment, a network side may configure or agree that a position of HARQ-ACK information of the first unicast PDSCH in the HARQ-ACK codebook corresponds to a first candidate PDSCH receiving occasion in the first slot, a position of HARQ-ACK information of the first multicast PDSCH in the HARQ-ACK codebook corresponds to a second or last candidate PDSCH receiving occasion in the first slot, or a position of HARQ-ACK information of the first multicast PDSCH in the HARQ-ACK codebook corresponds to a first candidate PDSCH receiving occasion in the first slot, and a position of HARQ-ACK information of the first unicast PDSCH in the HARQ-ACK codebook corresponds to a second candidate PDSCH receiving occasion in the first slot, so that candidate PDSCH receiving occasions corresponding to the unicast PDSCH and the multicast PDSCH multiplexed in the first slot can be rapidly determined.

In another embodiment, the correspondence between the positions of the HARQ-ACK information of the first unicast PDSCH and the first multicast PDSCH in the HARQ-ACK codebook and the candidate PDSCH reception occasions within the first slot may be determined according to the first symbol or the first frequency domain position of the first unicast PDSCH and the first multicast PDSCH. For example, the position of HARQ-ACK information of PDSCH with earlier starting symbol or ending symbol or lower frequency domain position in the first unicast PDSCH and the first multicast PDSCH in the HARQ-ACK codebook corresponds to the first candidate PDSCH receiving timing in the first time slot, and the position of HARQ-ACK information of PDSCH with later starting symbol or ending symbol or higher frequency domain position in the first unicast PDSCH and the first multicast PDSCH in the HARQ-ACK codebook corresponds to the second candidate or last PDSCH receiving timing in the first time slot. This can improve flexibility in determining candidate PDSCH reception opportunities corresponding to the unicast PDSCH and the multicast PDSCH frequency-division multiplexed in the first slot.

Optionally, the number of candidate PDSCH reception occasions within the first time slot is determined according to at least one of U, M and P;

wherein U is the number of candidate PDSCH receiving opportunities in the first time slot determined according to the time domain resource allocation TDRA table corresponding to the unicast downlink control information DCI, M is the number of candidate PDSCH receiving opportunities in the first time slot determined according to the TDRA table corresponding to the multicast DCI, and P is the number of candidate PDSCH receiving opportunities in the first time slot determined according to the combined set of the TDRA table corresponding to the unicast DCI and the TDRA table corresponding to the multicast DCI.

The TDRA table corresponding to the unicast DCI may be referred to as a TDRA table of the unicast PDSCH. The TDRA table corresponding to the multicast DCI may be referred to as a TDRA table of the multicast PDSCH. In addition, the determining the number of candidate PDSCH reception opportunities in the first time slot according to the TDRA table corresponding to the unicast DCI may include determining the number of candidate PDSCH reception opportunities in the first time slot according to the TDRA table corresponding to the unicast DCI, the semi-static uplink/downlink configuration in the first time slot, and the like. The determining the number of candidate PDSCH receiving opportunities in the first time slot according to the TDRA table corresponding to the multicast DCI may include determining the number of candidate PDSCH receiving opportunities in the first time slot according to the TDRA table corresponding to the multicast DCI, the semi-static uplink and downlink configuration in the first time slot, and the like. The determining the number of candidate PDSCH receiving opportunities in the first time slot according to the set of TDRA tables corresponding to the unicast DCI and the set of TDRA tables corresponding to the multicast DCI may include determining the number of candidate PDSCH receiving opportunities in the first time slot according to the set of TDRA tables corresponding to the unicast DCI and the set of TDRA tables corresponding to the multicast DCI, semi-static uplink and downlink configuration in the first time slot, and the like. The semi-static uplink and downlink configuration in the first time slot may include at least one of a configuration parameter tdd-UL-DL-configuration command and a configuration parameter tdd-UL-DL-configuration command.

For example, the TDRA table corresponding to the unicast DCI may be as shown in fig. 7, the TDRA table corresponding to the multicast DCI may be as shown in fig. 8, and the combined set of the TDRA table corresponding to the multicast DCI and the TDRA table corresponding to the multicast DCI may be as shown in fig. 2. If the first slots are all semi-static DL symbols (i.e. the rows overlapping the uplink symbols of the TDD-UL-DL-configuration common and TDD-UL-DL-confederated configuration are not required to be excluded), U is 3 according to the TDRA table corresponding to the unicast DCI shown in fig. 7, M is 4 according to the TDRA table corresponding to the multicast DCI shown in fig. 8, and P is 5 according to the intersection of the TDRA table corresponding to the multicast DCI and the TDRA table corresponding to the multicast DCI shown in fig. 2.

In this embodiment, the number N of candidate PDSCH reception occasions in the first slot is determined according to at least one of U, M and P, for example, the value of N may be at least one of the following: max (U, 2), max (U, M, 2), max (P, 2), max (u+1, m+1), p+1. Where max (U, 2) represents the larger value of U and 2, max (U, M, 2) represents the maximum value of U, M and 2, max (P, 2) represents the larger value of P and 2, and max (u+1, m+1) represents the larger value of u+1 and m+1.

The number of candidate PDSCH reception opportunities in the first slot is determined according to at least one of U, M and P, so that the determined number of candidate PDSCH reception opportunities in the first slot is more suitable, and redundant bits are reduced.

The following describes a method of determining the candidate PDSCH reception opportunities in the first slot (i.e., determining the candidate PDSCH reception opportunities in the first slot from the TDRA table corresponding to the unicast DCI) when the number of candidate PDSCH reception opportunities in the first slot is max (U, 2), which will be hereinafter abbreviated as a first reception opportunity determination method for convenience of description.

Optionally, when U is greater than or equal to 2, the candidate PDSCH reception opportunities in the first slot include U candidate PDSCH reception opportunities determined according to the TDRA table corresponding to the unicast DCI;

in the case where U is less than 2, the candidate PDSCH reception opportunities in the first slot include two candidate PDSCH reception opportunities.

The above-mentioned U candidate PDSCH reception opportunities determined according to the TDRA table corresponding to the unicast DCI, that is, the U candidate PDSCH reception opportunities in the first slot determined according to the TDRA table corresponding to the unicast DCI, for example, the U candidate PDSCH reception opportunities determined according to the TDRA table corresponding to the unicast DCI, the semi-static uplink and downlink configuration in the first slot, and the like. It should be noted that, in this embodiment, the implementation manner of determining the U candidate PDSCH receiving opportunities in the first slot according to the TDRA table corresponding to the unicast DCI is not limited, for example, the candidate PDSCH receiving opportunities in the first slot may be determined according to the TDRA table corresponding to the unicast DCI in a manner of determining the candidate PDSCH receiving opportunities in a certain slot according to the TDRA table in the prior art, and a specific implementation manner may refer to the related description in step S1.

In this embodiment, when U is greater than or equal to 2, the candidate PDSCH receiving occasions in the first timeslot include U candidate PDSCH receiving occasions determined according to the TDRA table corresponding to the unicast DCI, so that implementation difficulty when other scheduling manners (for example, time division multiplexing or scheduling only unicast PDSCH, etc.) are adopted in the first timeslot can be reduced while it is ensured that the frequency division multiplexed unicast PDSCH and multicast PDSCH can respectively correspond to different candidate PDSCH receiving occasions in the U candidate PDSCH receiving occasions when the frequency division multiplexed unicast PDSCH and multicast PDSCH exist in the first timeslot.

For the case where U is less than 2, the candidate PDSCH reception occasions in the first slot include two candidate PDSCH reception occasions, and optionally, in the case where U is equal to 1, the two candidate PDSCH reception occasions may include one candidate PDSCH reception occasion determined according to the TDRA table corresponding to the unicast DCI and one candidate PDSCH reception occasion located after or before the candidate PDSCH reception occasion. Because the candidate PDSCH receiving opportunities in the first time slot include two candidate PDSCH receiving opportunities, it can be ensured that the frequency division multiplexed unicast PDSCH and multicast PDSCH in the case of the frequency division multiplexed unicast PDSCH and multicast PDSCH in the first time slot can respectively correspond to different candidate PDSCH receiving opportunities in the two candidate PDSCH receiving opportunities and simultaneously reduce redundant bits as much as possible.

Alternatively, in the case where U is equal to 1, the position of HARQ-ACK information of the unicast PDSCH in the HARQ-ACK codebook may correspond to the first one of the two candidate PDSCH reception opportunities.

Optionally, in the case that only one multicast PDSCH is transmitted in the first time slot, the position of HARQ-ACK information of the multicast PDSCH in the HARQ-ACK codebook corresponds to a J candidate PDSCH reception occasion in the first time slot, where J is a positive integer and is less than or equal to the number of candidate PDSCH reception occasions in the first time slot; the position of HARQ-ACK information, e.g., multicast PDSCH, in the HARQ-ACK codebook corresponds to the last candidate PDSCH reception occasion within the first slot.

And/or

Under the condition that only one unicast PDSCH is transmitted in the first time slot, the position of the HARQ-ACK information of the unicast PDSCH in the HARQ-ACK codebook corresponds to the K candidate PDSCH receiving time in the first time slot, wherein K is a positive integer and is less than or equal to the number of candidate PDSCH receiving time in the first time slot; the position of HARQ-ACK information, e.g., unicast PDSCH, in the HARQ-ACK codebook corresponds to the first candidate PDSCH reception occasion within the first slot.

And/or

And under the condition that at least two unicast PDSCH which are time division multiplexed are transmitted in the first time slot, determining the corresponding relation between the position of the HARQ-ACK information of the at least two unicast PDSCH in the HARQ-ACK codebook and the candidate PDSCH receiving time in the first time slot according to a TDRA table corresponding to the unicast DCI.

In this embodiment, in a case where only one multicast PDSCH is transmitted in the first slot, for example, in a case where the terminal receives only one multicast PDSCH in the first slot or where the network side device transmits only one multicast PDSCH in the first slot, the position of the HARQ-ACK information of the multicast PDSCH in the HARQ-ACK codebook corresponds to the J-th candidate PDSCH reception occasion in the first slot, for example, the position of the HARQ-ACK information of the multicast PDSCH in the HARQ-ACK codebook corresponds to the first or last candidate PDSCH reception occasion in the first slot; or determining the corresponding relation between the multicast PDSCH and the candidate PDSCH receiving time according to the TDRA table corresponding to the multicast DCI.

In the case that the first time slot only transmits one unicast PDSCH, for example, in the case that the terminal receives only one unicast PDSCH in the first time slot or the network side device transmits only one unicast PDSCH in the first time slot, the position of the HARQ-ACK information of the unicast PDSCH in the HARQ-ACK codebook corresponds to the kth candidate PDSCH receiving occasion in the first time slot, for example, the position of the HARQ-ACK information of the unicast PDSCH in the HARQ-ACK codebook corresponds to the first candidate PDSCH receiving occasion in the first time slot, or the correspondence between the PDSCH and the candidate PDSCH receiving occasion is determined according to the TDRA table corresponding to the unicast DCI.

And under the condition that at least two unicast PDSCH which are time division multiplexed are transmitted in the first time slot, determining the corresponding relation between the position of the HARQ-ACK information of the at least two unicast PDSCH in the HARQ-ACK codebook and the candidate PDSCH receiving time in the first time slot according to a TDRA table corresponding to the unicast DCI. Here, the correspondence between each row in the TDRA table corresponding to the unicast DCI and the candidate PDSCH reception timing is determined. That is, the present embodiment may determine the corresponding relationship between the position of the HARQ-ACK information of the unicast PDSCH transmitted in the first slot and the candidate PDSCH receiving timing in the first slot according to the manner of determining the corresponding relationship between the position of the HARQ-ACK information of the unicast PDSCH in the HARQ-ACK codebook and the candidate PDSCH receiving timing according to the TDRA table corresponding to the unicast DCI in the prior art.

The following describes a method of determining the candidate PDSCH reception timing in the first slot when the number of candidate PDSCH reception timings in the first slot is max (U, M, 2) (i.e., determining the candidate PDSCH reception timing in the first slot from the TDRA table corresponding to the unicast DCI or the TDRA table corresponding to the multicast DCI), and for convenience of description, will be hereinafter abbreviated as a second reception timing determination method.

Optionally, in a case where U is greater than or equal to M and U is greater than or equal to 2, the candidate PDSCH reception opportunities in the first slot include U candidate PDSCH reception opportunities determined according to the TDRA table corresponding to the unicast DCI;

when M is greater than U and M is greater than or equal to 2, the candidate PDSCH reception opportunities in the first slot include M candidate PDSCH reception opportunities determined according to the TDRA table corresponding to the multicast DCI;

in the case where U is less than 2 and M is less than 2, the candidate PDSCH reception opportunities within the first slot include two candidate PDSCH reception opportunities.

The determined U candidate PDSCH reception opportunities, that is, the U candidate PDSCH reception opportunities in the first slot determined according to the TDRA table corresponding to the unicast DCI, for example, the U candidate PDSCH reception opportunities determined according to the TDRA table corresponding to the unicast DCI, the semi-static uplink and downlink configuration in the first slot, and the like.

The above determined M candidate PDSCH reception opportunities, that is, the M candidate PDSCH reception opportunities in the first slot determined according to the TDRA table corresponding to the multicast DCI, for example, the M candidate PDSCH reception opportunities determined according to the TDRA table corresponding to the multicast DCI, the semi-static uplink and downlink configuration in the first slot, and the like.

It should be noted that, in this embodiment, the implementation manner of determining the U candidate PDSCH receiving opportunities in the first slot according to the TDRA table corresponding to the unicast DCI and determining the M candidate PDSCH receiving opportunities in the first slot according to the TDRA table corresponding to the multicast DCI is not limited, for example, the candidate PDSCH receiving opportunities in the first slot may be determined according to the TDRA table corresponding to the unicast DCI or the candidate PDSCH receiving opportunities in the first slot may be determined according to the TDRA table corresponding to the multicast DCI according to the manner of determining the candidate PDSCH receiving opportunities in a certain slot according to the TDRA table in the prior art, and the specific implementation manner may refer to the description in the foregoing step S1.

In this embodiment, when U is greater than or equal to M and U is greater than or equal to 2, the candidate PDSCH receiving occasions in the first slot include U candidate PDSCH receiving occasions determined according to the TDRA table corresponding to the unicast DCI, so that implementation difficulty when other scheduling manners (for example, time division multiplexing or scheduling only unicast PDSCH or scheduling only multicast and the like) are adopted in the first slot can be reduced while it is ensured that different candidate PDSCH receiving occasions in the U candidate PDSCH receiving occasions can be respectively corresponding to the unicast PDSCH and the multicast PDSCH which are frequency-division multiplexed in the case that the unicast PDSCH and the multicast PDSCH exist in the first slot.

When M is greater than U and M is greater than or equal to 2, the candidate PDSCH receiving occasions in the first time slot include M candidate PDSCH receiving occasions determined according to the TDRA table corresponding to the multicast DCI, so that implementation difficulty when other scheduling modes (for example, time division multiplexing or scheduling only unicast PDSCH or scheduling only multicast and the like) are adopted in the first time slot can be reduced while it is ensured that the frequency division multiplexed unicast PDSCH and multicast PDSCH in the case that the frequency division multiplexed unicast PDSCH and multicast PDSCH exist in the first time slot can respectively correspond to different candidate PDSCH receiving occasions in the M candidate PDSCH receiving occasions.

For the case where U is less than 2 and M is less than 2, the candidate PDSCH reception occasions in the first slot include two candidate PDSCH reception occasions, alternatively, in the case where U is equal to 1, the two candidate PDSCH reception occasions may include one candidate PDSCH reception occasion determined according to a TDRA table corresponding to the unicast DCI and one candidate PDSCH reception occasion located after or before the candidate PDSCH reception occasion, or in the case where M is equal to 1, the two candidate PDSCH reception occasions may include one candidate PDSCH reception occasion determined according to a TDRA table corresponding to the multicast DCI and one candidate PDSCH reception occasion located after or before the candidate PDSCH reception occasion. Because the candidate PDSCH receiving opportunities in the first time slot include two candidate PDSCH receiving opportunities, it can be ensured that the frequency division multiplexed unicast PDSCH and multicast PDSCH in the case of the frequency division multiplexed unicast PDSCH and multicast PDSCH in the first time slot can respectively correspond to different candidate PDSCH receiving opportunities in the two candidate PDSCH receiving opportunities and simultaneously reduce redundant bits as much as possible.

Optionally, in the case that only one multicast PDSCH is transmitted in the first time slot, the position of HARQ-ACK information of the multicast PDSCH in the HARQ-ACK codebook corresponds to a J candidate PDSCH reception occasion in the first time slot, where J is a positive integer and is less than or equal to the number of candidate PDSCH reception occasions in the first time slot;

and/or

Under the condition that only one unicast PDSCH is transmitted in the first time slot, the position of the HARQ-ACK information of the unicast PDSCH in the HARQ-ACK codebook corresponds to the K candidate PDSCH receiving time in the first time slot, wherein K is a positive integer and is less than or equal to the number of candidate PDSCH receiving time in the first time slot;

and/or

It can be understood that the content of this embodiment can be referred to the foregoing related description, and will not be described herein.

Optionally, if U is greater than or equal to M and U is greater than or equal to 2, if L multicast PDSCH is transmitted in the first slot, the HARQ-ACK information of the L multicast PDSCH corresponds to L candidate PDSCH reception opportunities in the first slot in the HARQ-ACK codebook, where L is a positive integer less than or equal to M, and the L candidate PDSCH reception opportunities are L candidate PDSCH reception opportunities in the first M or the last M candidate PDSCH reception opportunities in the U candidate reception opportunities;

And/or

If M is greater than U and M is greater than or equal to 2, if S unicast PDSCH is transmitted in the first slot, the position of HARQ-ACK information of the S unicast PDSCH in the HARQ-ACK codebook corresponds to S candidate PDSCH reception opportunities in the first slot, where S is a positive integer less than or equal to U, and the S candidate PDSCH reception opportunities are S candidate PDSCH reception opportunities in the first U or the last U candidate PDSCH reception opportunities in the M candidate reception opportunities.

In this embodiment, if U is greater than or equal to M and U is greater than or equal to 2, if L multicast PDSCH is transmitted in the first slot, the position of HARQ-ACK information of the L multicast PDSCH in the HARQ-ACK codebook corresponds to L candidate PDSCH reception opportunities in the first slot, for example, if u=4, m=3, l=2, the L candidate PDSCH reception opportunities may be two candidate PDSCH reception opportunities in the first 3 candidate PDSCH reception opportunities among the U candidate PDSCH reception opportunities, for example, two candidate PDSCH reception opportunities in the first to third candidate PDSCH reception opportunities, or the L candidate PDSCH reception opportunities may be two candidate PDSCH reception opportunities in the last 3 candidate PDSCH reception opportunities among the U candidate PDSCH reception opportunities, for example, two candidate PDSCH reception opportunities in the second to fourth candidate PDSCH reception opportunities.

If M is greater than U and M is greater than or equal to 2, if S unicast PDSCH is transmitted in the first slot, the position of HARQ-ACK information of the S unicast PDSCH in the HARQ-ACK codebook corresponds to S candidate PDSCH reception occasions in the first slot, for example, if m= 4,U =3, s=3, the S candidate PDSCH reception occasions may be the first 3 candidate PDSCH reception occasions, for example, the first candidate PDSCH reception occasion to the third candidate PDSCH reception occasion, or the S candidate PDSCH reception occasions may be the last 3 candidate PDSCH reception occasions, for example, the second candidate PDSCH reception occasion to the fourth candidate PDSCH reception occasion, among the M candidate PDSCH reception occasions.

Optionally, a correspondence between positions of HARQ-ACK information of the L multicast PDSCH in the HARQ-ACK codebook and first M or last M candidate PDSCH receiving opportunities in the first slot is determined according to a TDRA table corresponding to the multicast DCI;

and/or

And the corresponding relation between the positions of the HARQ-ACK information of the S unicast PDSCHs in the HARQ-ACK codebook and the first U or the last U candidate PDSCH receiving opportunities in the first time slot is determined according to a TDRA table corresponding to the unicast DCI.

In this embodiment, the first M or later M candidate PDSCH reception opportunities in the first slot, that is, the first M or later M candidate PDSCH reception opportunities in the U candidate reception opportunities. The first U or later candidate PDSCH reception opportunities in the first slot, that is, the first U or later candidate PDSCH reception opportunities in the M candidate reception opportunities.

And determining the corresponding relation between the positions of the HARQ-ACK information of the L multicast PDSCH in the HARQ-ACK codebook and the first M or the last M candidate PDSCH receiving opportunities in the first time slot according to a TDRA table corresponding to the multicast DCI, wherein the corresponding relation between each row in the TDRA table corresponding to the multicast DCI and the candidate PDSCH receiving opportunities is determined. That is, the present embodiment may determine the correspondence between the positions of the HARQ-ACK information of the L multicast PDSCH in the HARQ-ACK codebook and the first M or the last M candidate PDSCH reception opportunities in the first slot in such a manner that the correspondence between the positions of the HARQ-ACK information of the unicast PDSCH in the HARQ-ACK codebook and the candidate PDSCH reception opportunities is determined according to the TDRA table corresponding to the multicast DCI in the prior art.

And determining the corresponding relation between the positions of the HARQ-ACK information of the S unicast PDSCHs in the HARQ-ACK codebook and the first U or the last U candidate PDSCH receiving opportunities in the first time slot according to a TDRA table corresponding to the unicast DCI, wherein the corresponding relation between each row in the TDRA table corresponding to the unicast DCI and the candidate PDSCH receiving opportunities is determined. That is, the present embodiment may determine the correspondence between the positions of the HARQ-ACK information of the S unicast PDSCH in the HARQ-ACK codebook and the first U or the last U candidate PDSCH reception opportunities in the first slot in such a manner that the correspondence between the positions of the HARQ-ACK information of the unicast PDSCH in the HARQ-ACK codebook and the candidate PDSCH reception opportunities is determined according to the TDRA table corresponding to the unicast DCI in the prior art.

The following describes a manner of determining the candidate PDSCH reception timing in the first slot when the number of candidate PDSCH reception timings in the first slot is max (P, 2) (i.e., determining the candidate PDSCH reception timing in the first slot according to the set of the TDRA table corresponding to the unicast DCI and the TDRA table corresponding to the multicast DCI), and for convenience of description, the following will simply refer to a third reception timing determination manner.

Optionally, when P is greater than or equal to 2, the candidate PDSCH reception opportunities in the first slot include P candidate PDSCH reception opportunities determined according to a set of a TDRA table corresponding to the unicast DCI and a table corresponding to the multicast DCI;

in the case where P is less than 2, the candidate PDSCH reception opportunities in the first slot include two candidate PDSCH reception opportunities.

The P candidate PDSCH reception opportunities are, for example, U candidate PDSCH reception opportunities determined according to the set of the TDRA table corresponding to the unicast DCI and the table corresponding to the multicast DCI, the semi-static uplink and downlink configuration in the first slot, and the like. Note that, in this embodiment, the implementation manner of determining the P candidate PDSCH receiving opportunities in the first slot according to the TDRA table corresponding to the unicast DCI and the set of tables corresponding to the multicast DCI is not limited, for example, the candidate PDSCH receiving opportunities in the first slot may be determined according to the set of TDRA tables corresponding to the unicast DCI and the set of tables corresponding to the multicast DCI in a manner of determining the candidate PDSCH receiving opportunities in a certain slot according to the TDRA table in the prior art, and a specific implementation manner may refer to the related description in step S1.

In this embodiment, when P is greater than or equal to 2, the candidate PDSCH receiving occasions in the first slot include P candidate PDSCH receiving occasions determined according to the TDRA table corresponding to the unicast DCI and the aggregate of the table corresponding to the multicast DCI, so that implementation difficulty when other scheduling manners (for example, time division multiplexing or scheduling only the unicast PDSCH or scheduling only the multicast and the like) are adopted in the first slot can be reduced while it is ensured that the frequency division multiplexed unicast PDSCH and the multicast PDSCH can respectively correspond to different candidate PDSCH receiving occasions in the P candidate PDSCH receiving occasions when the frequency division multiplexed unicast PDSCH and the multicast PDSCH exist in the first slot.

For the case where P is less than 2, the candidate PDSCH reception occasions in the first slot include two candidate PDSCH reception occasions, and optionally, in the case where P is equal to 1, the two candidate PDSCH reception occasions may include one candidate PDSCH reception occasion determined according to a set of a TDRA table corresponding to unicast DCI and a table corresponding to the multicast DCI and one candidate PDSCH reception occasion located after or before the candidate PDSCH reception occasion. Because the candidate PDSCH receiving opportunities in the first time slot include two candidate PDSCH receiving opportunities, it can be ensured that the frequency division multiplexed unicast PDSCH and multicast PDSCH in the case of the frequency division multiplexed unicast PDSCH and multicast PDSCH in the first time slot can respectively correspond to different candidate PDSCH receiving opportunities in the two candidate PDSCH receiving opportunities and simultaneously reduce redundant bits as much as possible.

Alternatively, in case that P is equal to 1, the position of HARQ-ACK information of the unicast PDSCH in the HARQ-ACK codebook may correspond to the first one of the above two candidate PDSCH reception opportunities.

and/or

The following describes a method of determining the candidate PDSCH reception opportunities in the first slot (i.e., determining the candidate PDSCH reception opportunities according to the TDRA table corresponding to the unicast DCI or the TDRA table corresponding to the multicast DCI and the TDRA table corresponding to the multicast DCI together) when the number of candidate PDSCH reception opportunities in the first slot is max (u+1, m+1), and adding one candidate PDSCH reception opportunity before or after the determined candidate PDSCH reception opportunities for unicast PDSCH or multicast PDSCH feedback in FDM, for convenience of description, hereinafter, simply referred to as a fourth reception opportunity determination method.

Optionally, the candidate PDSCH receiving occasions in the first time slot include U candidate PDSCH receiving occasions and a first candidate PDSCH receiving occasion determined according to the TDRA table corresponding to the unicast DCI, where the first candidate PDSCH receiving occasion is one candidate PDSCH receiving occasion located after or before the U candidate PDSCH receiving occasions;

or alternatively

The candidate PDSCH receiving occasions in the first time slot include M candidate PDSCH receiving occasions and a second candidate PDSCH receiving occasion determined according to the TDRA table corresponding to the multicast DCI, wherein the second candidate PDSCH receiving occasion is one candidate PDSCH receiving occasion located after or before the M candidate PDSCH receiving occasions;

Or alternatively

The candidate PDSCH receiving occasions in the first time slot include P candidate PDSCH receiving occasions and a third candidate PDSCH receiving occasion determined according to the TDRA table corresponding to the unicast DCI and the set of TDRA tables corresponding to the multicast DCI, wherein the third candidate PDSCH receiving occasion is one candidate PDSCH receiving occasion located after or before the P candidate PDSCH receiving occasions.

In an embodiment, the candidate PDSCH receiving opportunity in the first slot may be determined according to the TDRA table corresponding to the unicast DCI, and one candidate PDSCH receiving opportunity (i.e., the first candidate PDSCH receiving opportunity) may be added before or after the determined candidate PDSCH receiving opportunity in the first slot, for the unicast PDSCH or multicast PDSCH feedback in FDM. For example, the candidate PDSCH reception opportunity in the first slot determined according to the TDRA table corresponding to the unicast DCI is used to feed back HARQ-ACK information of the unicast PDSCH in FDM, and the first candidate PDSCH reception opportunity is used to feed back HARQ-ACK information of the multicast PDSCH in FDM.

In another embodiment, the candidate PDSCH receiving opportunity in the first slot may be determined according to the TDRA table corresponding to the multicast DCI, and one candidate PDSCH receiving opportunity (i.e., the second candidate PDSCH receiving opportunity) may be added before or after the determined candidate PDSCH receiving opportunity in the first slot, for unicast PDSCH or multicast PDSCH feedback in FDM. For example, the candidate PDSCH reception timing in the first slot determined according to the TDRA table corresponding to the multicast DCI is used to feed back HARQ-ACK information of the multicast PDSCH in FDM, and the first candidate PDSCH reception timing is used to feed back HARQ-ACK information of the unicast PDSCH in FDM.

In another embodiment, the candidate PDSCH receiving opportunity in the first slot may be determined according to the TDRA table corresponding to the unicast DCI and the set of TDRA tables corresponding to the multicast DCI, and one candidate PDSCH receiving opportunity (i.e., the third candidate PDSCH receiving opportunity) may be added before or after the determined candidate PDSCH receiving opportunity in the first slot, for the unicast PDSCH or the multicast PDSCH feedback in FDM. For example, according to the TDRA table corresponding to the unicast DCI and the set of TDRA tables corresponding to the multicast DCI, the candidate PDSCH receiving opportunity in the first time slot is determined to be used for feeding back the HARQ-ACK information of the unicast PDSCH in FDM, and the third candidate PDSCH receiving opportunity is used for feeding back the HARQ-ACK information of the multicast PDSCH in FDM.

It should be noted that, in this embodiment, the candidate PDSCH receiving timing in the first slot may be determined according to the TDRA table in the manner of determining the candidate PDSCH receiving timing according to the TDRA table in the prior art.

Optionally, the candidate PDSCH reception occasions in the first time slot include according to the U candidate PDSCH reception occasions and the first candidate PDSCH reception occasion;

wherein, when the PDSCH transmitted in the first time slot includes the first unicast PDSCH and the first multicast PDSCH, the position of HARQ-ACK information of the first unicast PDSCH in the HARQ-ACK codebook corresponds to one candidate PDSCH reception occasion among the U candidate PDSCH reception occasions, and the position of HARQ-ACK information of the first multicast PDSCH in the HARQ-ACK codebook corresponds to the first candidate PDSCH reception occasion;

And/or

And under the condition that Q multicast PDSCHs are transmitted in the first time slot, the position of the HARQ-ACK information of the Q multicast PDSCHs in the HARQ-ACK codebook corresponds to Q candidate PDSCH receiving opportunities in the U candidate PDSCH receiving opportunities, wherein Q is a positive integer less than or equal to M, M is less than or equal to U, and the Q candidate PDSCH receiving opportunities are Q candidate PDSCH receiving opportunities in the first M or the last M of the U candidate receiving opportunities.

In this embodiment, the position of the HARQ-ACK information of the unicast PDSCH in the HARQ-ACK codebook corresponds to one candidate PDSCH receiving occasion among the U candidate PDSCH receiving occasions, for example, the position of the HARQ-ACK information of the unicast PDSCH in the HARQ-ACK codebook may correspond to the first candidate PDSCH receiving occasion among the U candidate PDSCH receiving occasions.

The positions of the HARQ-ACK information of the Q multicast PDSCH in the HARQ-ACK codebook correspond to Q candidate PDSCH reception opportunities among the U candidate PDSCH reception opportunities, for example, the positions of the HARQ-ACK information of the Q multicast PDSCH in the HARQ-ACK codebook may correspond to the first Q or the last Q candidate PDSCH reception opportunities among the first M or the last M candidate PDSCH reception opportunities among the U candidate reception opportunities.

For example, if u=4, m=3, and q=2, the positions of the HARQ-ACK information of the Q multicast PDSCH in the HARQ-ACK codebook may correspond to the first two candidate PDSCH reception opportunities of the first 3 candidate PDSCH reception opportunities of the U candidate reception opportunities, that is, the first candidate PDSCH reception opportunity and the second candidate PDSCH reception opportunity of the U candidate reception opportunities, respectively; or the positions of the HARQ-ACK information of the Q multicast PDSCH in the HARQ-ACK codebook may respectively correspond to the first two candidate PDSCH receiving occasions of the last 3 candidate PDSCH receiving occasions of the U candidate receiving occasions, that is, the second candidate PDSCH receiving occasion and the third candidate PDSCH receiving occasion of the U candidate receiving occasions.

Optionally, the correspondence between the positions of the HARQ-ACK information of the Q multicast PDSCH in the HARQ-ACK codebook and the first M or the last M candidate PDSCH reception opportunities in the U candidate PDSCH reception opportunities is determined according to a TDRA table corresponding to the multicast DCI.

The correspondence between each row in the TDRA table corresponding to the multicast DCI and the candidate PDSCH reception timing is determined. That is, the present embodiment may determine the correspondence between the position of the HARQ-ACK information of the multicast PDSCH transmitted in the first slot and the candidate PDSCH reception timing in the first slot according to the manner of determining the correspondence between the position of the HARQ-ACK information of the multicast PDSCH in the HARQ-ACK codebook and the candidate PDSCH reception timing according to the TDRA table corresponding to the multicast DCI in the prior art.

Optionally, the candidate PDSCH reception occasions within the first time slot include according to the M candidate PDSCH reception occasions and the second candidate PDSCH reception occasion;

wherein, when the PDSCH transmitted in the first time slot includes the first unicast PDSCH and the first multicast PDSCH, the position of HARQ-ACK information of the first multicast PDSCH in the HARQ-ACK codebook corresponds to one candidate PDSCH reception occasion among the M candidate PDSCH reception occasions, and the position of HARQ-ACK information of the first unicast PDSCH in the HARQ-ACK codebook corresponds to the second candidate PDSCH reception occasion;

and/or

And under the condition that R unicast PDSCHs are transmitted in the first time slot, the positions of the HARQ-ACK information of the R unicast PDSCHs in the HARQ-ACK codebook correspond to R candidate PDSCH receiving opportunities in the M candidate PDSCH receiving opportunities, wherein R is smaller than or equal to U, and the R candidate PDSCH receiving opportunities are R candidate PDSCH receiving opportunities in the first U or the later U of the M candidate receiving opportunities.

In this embodiment, the position of the HARQ-ACK information of the multicast PDSCH in the HARQ-ACK codebook corresponds to one candidate PDSCH reception occasion among the M candidate PDSCH reception occasions, for example, the position of the HARQ-ACK information of the multicast PDSCH in the HARQ-ACK codebook may correspond to the first candidate PDSCH reception occasion among the M candidate PDSCH reception occasions.

The positions of the HARQ-ACK information of the R unicast PDSCH in the HARQ-ACK codebook correspond to R candidate PDSCH receiving opportunities among the M candidate PDSCH receiving opportunities, for example, the positions of the HARQ-ACK information of the R unicast PDSCH in the HARQ-ACK codebook may correspond to the first R or the last R candidate PDSCH receiving opportunities among the first U or the last U candidate PDSCH receiving opportunities among the M candidate PDSCH receiving opportunities, that is, the first U or the last U candidate PDSCH receiving opportunities are determined from the M candidate PDSCH receiving opportunities, and then the first R or the last R candidate PDSCH receiving opportunities are determined from the determined U candidate PDSCH receiving opportunities.

For example, if u=4, m=3, and r=2, the positions of the HARQ-ACK information of the R unicast PDSCH in the HARQ-ACK codebook may correspond to the first two candidate PDSCH reception opportunities of the first 3 candidate PDSCH reception opportunities of the M candidate reception opportunities, that is, the first candidate PDSCH reception opportunity and the second candidate PDSCH reception opportunity of the M candidate reception opportunities, respectively; or the positions of the HARQ-ACK information of the R unicast PDSCH in the HARQ-ACK codebook may respectively correspond to the first two candidate PDSCH receiving occasions of the last 3 candidate PDSCH receiving occasions of the M candidate receiving occasions, that is, the second candidate PDSCH receiving occasion and the third candidate PDSCH receiving occasion of the M candidate receiving occasions.

Optionally, the correspondence between the positions of the HARQ-ACK information of the R unicast PDSCH in the HARQ-ACK codebook and the first U or later U candidate PDSCH reception opportunities among the M candidate PDSCH reception opportunities is determined according to the TDRA table corresponding to the unicast DCI.

The correspondence between each row in the TDRA table of the unicast PDSCH and the candidate PDSCH reception timing is determined. That is, the present embodiment may determine the correspondence between the position of the HARQ-ACK information of the unicast PDSCH transmitted in the first slot and the candidate PDSCH reception timing in the first slot in such a manner that the correspondence between the position of the HARQ-ACK information of the unicast PDSCH in the HARQ-ACK codebook and the candidate PDSCH reception timing is determined according to the TDRA table of the unicast PDSCH in the prior art.

Optionally, the candidate PDSCH reception occasions within the first time slot include according to the P candidate PDSCH reception occasions and the third candidate PDSCH reception occasion;

wherein, when the PDSCH transmitted in the first time slot includes the first unicast PDSCH and the first multicast PDSCH, the position of HARQ-ACK information of the first unicast PDSCH in the HARQ-ACK codebook corresponds to one candidate PDSCH reception occasion among the P candidate PDSCH reception occasions, and the position of HARQ-ACK information of the first multicast PDSCH in the HARQ-ACK codebook corresponds to the third candidate PDSCH reception occasion;

Or alternatively

In the case that the PDSCH transmitted in the first slot includes the first unicast PDSCH and the first multicast PDSCH, the position of HARQ-ACK information of the first multicast PDSCH in the HARQ-ACK codebook corresponds to one candidate PDSCH reception occasion among the P candidate PDSCH reception occasions, and the position of HARQ-ACK information of the first unicast PDSCH in the HARQ-ACK codebook corresponds to the third candidate PDSCH reception occasion.

In this embodiment, the position of the HARQ-ACK information of the unicast PDSCH in the HARQ-ACK codebook corresponds to one candidate PDSCH receiving occasion among the P candidate PDSCH receiving occasions, for example, the position of the HARQ-ACK information of the unicast PDSCH in the HARQ-ACK codebook may correspond to the first candidate PDSCH receiving occasion among the P candidate PDSCH receiving occasions.

The position of the HARQ-ACK information of the multicast PDSCH in the HARQ-ACK codebook corresponds to one candidate PDSCH reception occasion among the P candidate PDSCH reception occasions, for example, the position of the HARQ-ACK information of the multicast PDSCH in the HARQ-ACK codebook corresponds to the first candidate PDSCH reception occasion among the P candidate PDSCH reception occasions.

Optionally, the first time slot time sequence value set is a combined set of a time slot time sequence value set corresponding to unicast DCI and a time slot time sequence value set corresponding to multicast DCI.

For example, a set of slot timing values (i.e., K ₁ Set) is K _1,U The set of slot timing values (i.e., K ₁ Set) is K _1,M Activating the set of uplink BWP-associated time slot timing values (i.e., the first set of time slot timing values) to K _1,U ∪K _1,M I.e. K _1,U And K is equal to _1,M Is a collection of (1).

Optionally, the first time slot timing value belongs to a second time slot timing value set, where the second time slot timing value set is an intersection of a time slot timing value set corresponding to the unicast DCI and a time slot timing value set corresponding to the multicast DCI;

and/or

Candidate PDSCH receiving opportunities in the timeslots corresponding to a second timeslot timing value in the first timeslot timing value set are determined according to the TDRA table corresponding to the unicast DCI, where the second timeslot timing value belongs to the timeslot timing value set corresponding to the unicast DCI and does not belong to the second timeslot timing value set;

and/or

And determining candidate PDSCH receiving time in a time slot corresponding to a third time slot time sequence value in the first time slot time sequence value set according to a TDRA table corresponding to the multicast DCI, wherein the third time slot time sequence value belongs to the time slot time sequence value set corresponding to the multicast DCI and does not belong to the second time slot time sequence value set.

In this embodiment, for the slot timing value belonging to the intersection of the slot timing value set corresponding to the unicast DCI and the slot timing value set corresponding to the multicast DCI, the method of determining the candidate PDSCH reception timing in the slot corresponding to the slot timing value in this embodiment (that is, the first reception timing determining method, the second reception timing determining method, the third reception timing determining method, or the fourth reception timing determining method) may be used to determine the candidate PDSCH reception timing in the slot corresponding to the slot timing value.

For the time slot timing value (i.e., the second time slot timing value) belonging to the time slot timing value set corresponding to the unicast DCI and not belonging to the second time slot timing value set, the candidate PDSCH receiving opportunity in the time slot corresponding to the second time slot timing value may be determined according to the TDRA table corresponding to the unicast DCI, for example, in the manner of determining the candidate PDSCH receiving opportunity according to the TDRA table corresponding to the unicast PDSCH in the prior art.

For the time slot timing value (i.e., the third time slot timing value) belonging to the time slot timing value set corresponding to the multicast DCI and not belonging to the second time slot timing value set, the candidate PDSCH receiving opportunity in the time slot corresponding to the third time slot timing value may be determined according to the TDRA table corresponding to the multicast DCI, for example, in the manner of determining the candidate PDSCH receiving opportunity according to the TDRA table corresponding to the multicast DCI in the prior art.

Optionally, the first time slot timing value is any time slot timing value in the first set of time slot timing values.

In this embodiment, for each time slot timing value in the first time slot timing value set, the manner of determining the candidate PDSCH reception timing in the time slot corresponding to the time slot timing value in this embodiment (that is, the first reception timing determining manner, the second reception timing determining manner, the third reception timing determining manner, or the fourth reception timing determining manner) may be adopted to determine the candidate PDSCH reception timing in the time slot corresponding to the time slot timing value.

Optionally, the method further comprises:

the communication device determines whether to adopt the hybrid automatic repeat request acknowledgement codebook determination method provided by the embodiment to generate the HARQ-ACK codebook according to the first configuration information.

For example, if the first configuration information indicates that the HARQ-ACK codebook is generated by using the hybrid automatic repeat request acknowledgement codebook determining method provided in this embodiment, otherwise, the HARQ-ACK codebook may be generated by using the hybrid automatic repeat request acknowledgement codebook determining method in the prior art.

Optionally, the method further comprises:

the communication device determines to generate the HARQ-ACK codebook in the first manner provided in this embodiment or generate the HARQ-ACK codebook in the second manner provided in this embodiment according to the second configuration information.

The first manner may refer to that, for each time slot timing value in the first time slot timing value set, the candidate PDSCH receiving timing in the time slot corresponding to the time slot timing value may be determined by determining the candidate PDSCH receiving timing in the first time slot value in this embodiment.

The second aspect may refer to that, for a slot timing value belonging to an intersection of a slot timing value set corresponding to unicast DCI and a slot timing value set corresponding to multicast DCI, a mode for determining candidate PDSCH reception opportunities in the slot corresponding to the slot timing value (that is, the first reception opportunity determining mode, the second reception opportunity determining mode, the third reception opportunity determining mode, or the fourth reception opportunity determining mode) may be adopted in the present embodiment; for a time slot timing value (i.e., a second time slot timing value) belonging to a time slot timing value set corresponding to unicast DCI and not belonging to the second time slot timing value set, candidate PDSCH receiving opportunities in the corresponding time slots may be determined according to a TDRA table corresponding to the unicast DCI; for a time slot timing value (i.e., a third time slot timing value) that belongs to a time slot timing value set corresponding to the multicast DCI and does not belong to the second time slot timing value set, candidate PDSCH reception opportunities in the corresponding time slots may be determined according to a TDRA table corresponding to the multicast DCI.

Optionally, in the case that the UE is configured with carrier aggregation (Carrier Aggregation, CA), on each serving cell (serving cell), the UE determines HARQ-ACK information according to the first manner or the second manner described above, if no multicast (multicast) is received on a certain serving cell, the UE determines HARQ-ACK information for unicast feedback according to the existing manner, and concatenates HARQ-ACK information on different serving cells according to the size (e.g., from small to large) of the serving cell identification (serving cell ID).

The following describes embodiments of the present application with reference to examples:

example one: single carrier scenarios.

Determining the type 1 semi-static HARQ-ACK codebook may include the steps of:

step a1 according to K ₁ The set determines the feedback window for HARQ-ACKs as shown in fig. 3:

let K corresponding to unicast DCI ₁ Aggregate as K _1,U K corresponding to multicast DCI ₁ Aggregate as K _1,M 。

If the unicast DCI corresponds to K ₁ Aggregation (i.e. K _1,U ) For {1,2,3,4,5,6,7,8}, the set of K1 (i.e., K _1,M ) Is {6,8,10}, then K _1,U And K _1,M Is {6,8}, K _1,U And K _1,M The aggregate set (i.e., union) is {1,2,3,4,5,6,7,8,10}.

The UE may determine K for determining the type 1 semi-static HARQ-ACK feedback window according to the following ₁ And (5) collecting.

The method comprises the following steps: determining a first set, wherein the first set is K corresponding to unicast DCI ₁ Aggregation and multicast DCI corresponding K ₁ The aggregate of the sets, i.e., {1,2,3,4,5,6,7,8,10}

The second method is as follows: according to K corresponding to multicast DCI ₁ Aggregation and multicast DCI corresponding K ₁ The set determines the following set:

a second set of: k (K) _1,U ∩K _1,M I.e. K corresponding to unicast DCI ₁ Aggregation of K corresponding to multicast DCI ₁ Intersection of the sets, i.e., {6,8};

third set: k (K) _1,U \(K _1,U ∩K _1,M ) I.e. belonging to K corresponding to unicast DCI ₁ Set but not belonging to K corresponding to unicast PDSCH ₁ Aggregation and collectionK corresponding to multicast DCI ₁ A set of K1 values for the intersection of the sets, i.e., {1,2,3,4,5,7};

fourth set: k (K) _1,M \(K _1,U ∩K _1,M ) I.e. belonging to K corresponding to multicast DCI ₁ A set, but not belonging to the K1 set corresponding to the unicast DCI and the K corresponding to the multicast DCI ₁ K of intersections of sets ₁ A set of values, i.e., {10 }).

Step a2 for each K in the first set ₁ Value, determining the K ₁ A set of candidate PDSCH reception opportunities within the DL slot for which the value corresponds, or K for each of the second, third and fourth sets ₁ Value, determining the K ₁ And the candidate PDSCH receiving time set in the DL slot corresponding to the value.

Specifically, the step a2 may include the following steps:

step a21: and determining a candidate PDSCH receiving time set in the time slot according to the TDRA table. In determining the set of candidate PDSCH reception opportunities in the slot according to the TDRA table, it is necessary to exclude candidate PDSCH reception opportunities in the TDRA table that overlap with uplink symbols of TDD-UL-DL-configuration common and TDD-UL-DL-configuration decoded configurations. In addition, only 1 candidate PDSCH reception opportunity is determined for candidate PDSCH reception opportunities overlapping time-domain resources.

A first mode: for each K in the first set ₁ And determining candidate PDSCH receiving opportunities in the time slot according to a mode 0 by the DL slots corresponding to the values, wherein the mode 0 comprises a mode 0-1, a mode 0-2, a mode 0-3, a mode 0-4 and a mode 0-5.

The second mode is as follows:

for each K of the second set ₁ Determining a candidate PDSCH receiving time set according to a target mode or mode 0 by the DL slot corresponding to the value;

for each K of the third set ₁ Determining candidate PDSCH receiving time according to a TDRA table corresponding to the unicast PDSCH by the DL slot corresponding to the value;

for each K of the fourth set ₁ Determining the time according to the DL slot corresponding to the value and the TDRA table corresponding to the multicast DCIPDSCH reception opportunities are selected.

For example, assume that the TDRA table corresponding to unicast PDSCH (unicast PDSCH) is a TDRA1 table, as shown in fig. 7, and the TDRA table corresponding to multicast DCI is a TDRA2 table, as shown in fig. 8.

Assuming that the Uplink (UL) slot of the feedback HARQ-ACK is slot n, then for each K ₁ The value of the corresponding DL slot is DL slot n-K ₁ (assuming the uplink subcarrier spacing is the same), e.g., for K ₁ =1, and its corresponding DL slot is DL slot n-1. And assuming that DL slot n-1 is all semi-static DL symbols (i.e., candidate PDSCH reception occasions in the TDRA table that overlap with uplink symbols of the TDD-UL-DL-configured common and TDD-UL-DL-configured configuration need not be excluded). The following description will take, as an example, the determination of candidate reception opportunities in DL slot n-1.

Specifically, for mode 0, the following values can be determined:

A＝max(U，2)；

B＝max(U，M，2)；

C＝max(P，2)；

D＝max(U+1，M+1)；

E＝P+1。

wherein U is the number of candidate PDSCH reception opportunities determined according to the TDRA table corresponding to the unicast DCI, M is the number of candidate PDSCH reception opportunities determined according to the TDRA table corresponding to the multicast DCI, and P is the number of candidate PDSCH reception opportunities determined according to the set of the TDRA table corresponding to the unicast DCI and the TDRA table corresponding to the multicast DCI.

Specifically, according to the TDRA table corresponding to the unicast DCI as shown in fig. 7, u=3 may be obtained; from the TDRA table corresponding to the multicast DCI as shown in fig. 8, m=4 can be obtained; p=5 can be obtained from the set of the TDRA table corresponding to the unicast DCI as shown in fig. 7 and the TDRA table corresponding to the multicast DCI as shown in fig. 8, i.e., the TDRA table as shown in fig. X3.

Mode 0-1: and determining candidate PDSCH receiving time according to the TDRA table corresponding to the unicast DCI.

In this embodiment, the number of candidate reception opportunities in DL slot n-1 is a, where a=u=3.

Due to a >2, candidate PDSCH reception opportunities within the DL slot n-1 described above are determined in accordance with the TDRA table of the unicast DCI.

Specifically, if the unicast PDSCH and the multicast PDSCH of the FDM are received in the DL slot n-1, the first candidate PDSCH receiving opportunity corresponds to the position of the HARQ-ACK information of the unicast PDSCH in the HARQ-ACK codebook, and the second candidate PDSCH receiving opportunity corresponds to the position of the HARQ-ACK information of the multicast PDSCH in the HARQ-ACK codebook; or the first candidate PDSCH receiving time corresponds to the position of the HARQ-ACK information of the multicast PDSCH in the HARQ-ACK codebook, and the second candidate PDSCH receiving time corresponds to the position of the HARQ-ACK information of the unicast PDSCH in the HARQ-ACK codebook; or determining a corresponding relation between the candidate PDSCH receiving time in the DL slot n-1 and the position of the HARQ-ACK information of the PDSCH received in the DL slot n-1 in the HARQ-ACK codebook according to a first symbol or a first frequency domain of the PDSCH received in the DL slot n-1, wherein the first symbol comprises a starting symbol or an ending symbol, and the first frequency domain comprises a starting frequency domain position or an ending frequency domain position. For example, the position of the HARQ-ACK information of the PDSCH with the earlier starting or ending symbol in the HARQ-ACK codebook corresponds to the first candidate PDSCH reception occasion, and the position of the HARQ-ACK information of the PDSCH with the later starting or ending symbol in the HARQ-ACK codebook corresponds to the second candidate PDSCH reception occasion.

Otherwise, determining the position of the HARQ-ACK information of the feedback PDSCH according to the prior mode. For example, if all of the received data in the DL slot n-1 is unicast PDSCH, the correspondence between the HARQ-ACK information of the unicast PDSCH received in the DL slot n-1 and the candidate PDSCH reception timing in the DL slot n-1 is determined in the HARQ-ACK codebook according to the conventional method. For example, when the UE receives two unicast PDSCH, the first unicast PDSCH has a starting symbol of 2 and a length of 4, the second unicast PDSCH has a starting symbol of 10 and a length of 4, and the starting symbol and the ending symbol thereof correspond to the first row and the third row of the TDRA table corresponding to the unicast DCI in fig. 7, that is, the corresponding row indexes are 0 and 2, respectively, and then the positions of the HARQ-ACK information of the two unicast PDSCH in the HARQ-ACK codebook correspond to the positions corresponding to the candidate PDSCH receiving opportunities corresponding to ri#0 and ri#2, respectively. I.e., the positions corresponding to the 1 st and third candidate PDSCH reception opportunities, respectively.

Mode 0-2: and determining candidate PDSCH receiving time according to the TDRA table corresponding to the unicast DCI or the TDRA table corresponding to the multicast DCI.

In this embodiment, the number of candidate PDSCH reception opportunities in DL slot n-1 is B, where b=m=4. In this case, candidate PDSCH reception timings in the DL slot n-1 are determined according to the TDRA table corresponding to the multicast DCI.

Specifically, if all PDSCH received in the DL slot n-1 are unicast PDSCH, the corresponding relationship between the position of HARQ-ACK information of unicast PDSCH received in the DL slot n-1 in the HARQ-ACK codebook and the candidate PDSCH receiving timing in the DL slot n-1 is determined according to the existing method, for example, according to the TDRA table corresponding to unicast PDSCH.

For example, if 3 unicast PDSCH is received in the DL slot n-1, the position of HARQ-ACK information of the 3 unicast PDSCH in the HARQ-ACK codebook corresponds to the first 3 or the last 3 candidate PDSCH reception opportunities among the 4 candidate PDSCH reception opportunities in the DL slot n-1, and the correspondence between the position of HARQ-ACK information of the 3 unicast PDSCH in the HARQ-ACK codebook and the 3 candidate PDSCH reception opportunities is determined according to the existing manner，That is, the HARQ-ACK information of the 3 unicast PDSCH is fed back at the positions of the first 3 or last 3 candidate PDSCH reception opportunities in the conventional manner. For example, when the UE receives two unicast PDSCH, the first unicast PDSCH has a starting symbol of 2 and a length of 4, the second unicast PDSCH has a starting symbol of 10 and a length of 4, and the starting symbol and the ending symbol thereof correspond to the first row and the third row of the TDRA table corresponding to the unicast DCI in fig. 7, that is, the corresponding row indexes are 0 and 2, respectively, and then the positions of the HARQ-ACK information of the two unicast PDSCH in the HARQ-ACK codebook correspond to the positions corresponding to the candidate PDSCH receiving opportunities corresponding to ri#0 and ri#2, respectively. I.e. the positions corresponding to the 1 st and third candidate PDSCH reception occasions, respectively (the 1 st and third indicate the first 3 or the last three candidate PDSCH reception occasions among the 4 candidate PDSCH reception occasions) Numbering within).

If the received PDSCH in the DL slot n-1 is the unicast PDSCH and the multicast PDSCH of the FDM, the first candidate PDSCH receiving time corresponds to the position of the HARQ-ACK information of the unicast PDSCH in the HARQ-ACK codebook, and the second or last candidate PDSCH receiving time corresponds to the position of the HARQ-ACK information of the multicast PDSCH in the HARQ-ACK codebook; or the first candidate PDSCH receiving time corresponds to the position of the HARQ-ACK information of the multicast PDSCH in the HARQ-ACK codebook, and the second candidate or the last PDSCH receiving time corresponds to the position of the HARQ-ACK information of the unicast PDSCH in the HARQ-ACK codebook; or determining a corresponding relation between the candidate PDSCH receiving time in the DL slot n-1 and the position of the HARQ-ACK information of the PDSCH received in the DL slot n-1 in the HARQ-ACK codebook according to a first symbol or a first frequency domain of the PDSCH received in the DL slot n-1, wherein the first symbol comprises a starting symbol or an ending symbol, and the first frequency domain comprises a starting frequency domain position or an ending frequency domain position. For example, the position of the HARQ-ACK information of the PDSCH with the earlier starting or ending symbol in the HARQ-ACK codebook corresponds to the first candidate PDSCH reception occasion, and the position of the HARQ-ACK information of the PDSCH with the later starting or ending symbol in the HARQ-ACK codebook corresponds to the second candidate or last PDSCH reception occasion.

Modes 0 to 3: and determining candidate PDSCH receiving time according to the combined set of the TDRA table corresponding to the unicast DCI and the TDRA table corresponding to the multicast DCI.

In this embodiment, the number of candidate PDSCH reception opportunities in DL slot n-1 is C, where c=p=5.

Since c=5, that is, there are 5 candidate PDSCH reception opportunities in DL slot n-1, in this case, if all PDSCH received in DL slot n-1 is unicast PDSCH, the correspondence between the HARQ-ACK information of unicast PDSCH received in DL slot n-1 and the candidate PDSCH reception opportunities in DL slot n-1 is determined according to the conventional manner. For example, the determination is based on a set of a TDRA table corresponding to unicast DCI and a TDRA table corresponding to multicast DCI.

If the received PDSCH in the DL slot n-1 is the unicast PDSCH and the multicast PDSCH of the FDM, the first candidate PDSCH receiving time corresponds to the position of the HARQ-ACK information of the unicast PDSCH in the HARQ-ACK codebook, and the second candidate PDSCH receiving time corresponds to the position of the HARQ-ACK information of the multicast PDSCH in the HARQ-ACK codebook; or the first candidate PDSCH receiving time corresponds to the position of the HARQ-ACK information of the multicast PDSCH in the HARQ-ACK codebook, and the second candidate PDSCH receiving time corresponds to the position of the HARQ-ACK information of the unicast PDSCH in the HARQ-ACK codebook; or determining a corresponding relation between the candidate PDSCH receiving time in the DL slot n-1 and the position of the HARQ-ACK information of the PDSCH received in the DL slot n-1 in the HARQ-ACK codebook according to a first symbol or a first frequency domain of the PDSCH received in the DL slot n-1, wherein the first symbol comprises a starting symbol or an ending symbol, and the first frequency domain comprises a starting frequency domain position or an ending frequency domain position. For example, the position of the HARQ-ACK information of the PDSCH with the earlier starting or ending symbol in the HARQ-ACK codebook corresponds to the first candidate PDSCH reception occasion, and the position of the HARQ-ACK information of the PDSCH with the later starting or ending symbol in the HARQ-ACK codebook corresponds to the second candidate PDSCH reception occasion.

If the PDSCH received in the DL slot n-1 is the unicast PDSCH and/or the multicast PDSCH of the TDM, the HARQ-ACK information of the unicast PDSCH corresponding to the first candidate PDSCH receiving timing is determined according to the existing manner. For example, the UE receives the unicast PDSCH with a starting symbol of 2 and a length of 4, i.e., a row indexed by 0 in fig. 7, and receives the multicast PDSCH with a starting symbol of 8 and a length of 2, i.e., a row indexed by 1 in fig. 8. Unicast PDSCH and multicast PDSCH are time division multiplexed. The positions of their HARQ-ACKs correspond to the 2 nd and third candidate PDSCH reception positions, respectively, of the 5. (positions numbered 1 and 2 as in FIG. 4 b)

Modes 0 to 4: and determining candidate PDSCH receiving time according to a TDRA table corresponding to the unicast DCI or a TDRA table corresponding to the multicast DCI, and adding one candidate PDSCH receiving time behind the determined candidate PDSCH receiving time for unicast PDSCH or multicast PDSCH feedback in the FDM.

In this embodiment, the number of candidate PDSCH reception opportunities in DL slot n-1 is D, where d=m+1=5. Since d=m+1=5, candidate reception opportunities are determined according to the TDRA table corresponding to the multicast DCI.

For example, if 3 unicast PDSCH is received in the DL slot n-1, the position of HARQ-ACK information of the 3 unicast PDSCH in the HARQ-ACK codebook corresponds to the first 3 or the last 3 candidate PDSCH reception opportunities among the 4 candidate PDSCH reception opportunities in the DL slot n-1, and the correspondence between the position of HARQ-ACK information of the 3 unicast PDSCH in the HARQ-ACK codebook and the 3 candidate PDSCH reception opportunities is determined according to the existing method, for example, according to the TDRA table corresponding to the unicast PDSCH. That is, the HARQ-ACK information of the 3 unicast PDSCH is fed back at the positions of the first 3 or last 3 candidate PDSCH reception opportunities in the conventional manner.

If the PDSCH received in the DL slot n-1 is the unicast PDSCH and the multicast PDSCH of the FDM, the multicast PDSCH feeds back HARQ-ACK at the corresponding candidate PDSCH position according to the existing method, and the unicast PDSCH feeds back HARQ-ACK at the last candidate PDSCH receiving position.

Modes 0 to 5: and the candidate PDSCH receiving time determined according to the combined set of the TDRA table corresponding to the unicast PDSCH and the TDRA table corresponding to the multicast DCI is used for feeding back the HARQ-ACK of the unicast PDSCH or the HARQ-ACK of the multicast PDSCH, and then one candidate PDSCH receiving time is added for feeding back the HARQ-ACK of the other PDSCH of the FDM.

In this embodiment, the number of candidate PDSCH reception opportunities in DL slot n-1 is E, where e=p+1=6. In this case, there are 6 candidate PDSCH reception opportunities in the DL slot n-1.

Specifically, if all the PDSCHs received in the DL slot n-1 are unicast PDSCH or all the multicast PDSCH or all the PDSCH of TDM, the corresponding relationship between the position of the HARQ-ACK information of the unicast PDSCH received in the DL slot n-1 in the HARQ-ACK codebook and the candidate PDSCH receiving timing in the DL slot n-1 is determined according to the existing method, for example, according to the combined set of the TDRA table corresponding to the unicast PDSCH and the TDRA table corresponding to the multicast DCI.

For example, if 5 unicast PDSCH is received in the DL slot n-1, the position of HARQ-ACK information of the 5 unicast PDSCH in the HARQ-ACK codebook corresponds to the first 5 candidate PDSCH receiving occasions in the DL slot n-1, and the correspondence relationship between the position of HARQ-ACK information of the 5 unicast PDSCH in the HARQ-ACK codebook and the 5 candidate PDSCH receiving occasions is determined according to the conventional manner, for example, according to the combined set of the TDRA table corresponding to the unicast PDSCH and the TDRA table corresponding to the multicast DCI.

If the PDSCH received by the DL slot n-1 is the unicast PDSCH and the multicast PDSCH of the FDM, the unicast PDSCH feeds back the HARQ-ACK at the corresponding candidate PDSCH position according to the prior mode, and the multicast PDSCH feeds back the HARQ-ACK at the last candidate PDSCH receiving position; or the multicast PDSCH feeds back the HARQ-ACK at the corresponding candidate PDSCH position in the prior mode, and the unicast PDSCH feeds back the HARQ-ACK at the last candidate PDSCH receiving position.

Example two: multicarrier scenarios.

In the case that the UE is configured with carrier aggregation (Carrier Aggregation, CA), on each serving cell (serving cell), the UE determines HARQ-ACK information according to the first manner or the second manner described above, if no multicast (multicast) is received on a certain serving cell, the UE determines HARQ-ACK information for unicast feedback according to the existing manner, and concatenates HARQ-ACK information on different serving cells according to the size (e.g., from small to large) of the serving cell identification (serving cell ID).

As can be seen from the above, the method for determining the hybrid automatic repeat request acknowledgement codebook provided by the embodiment of the application is applicable to the situation of supporting the reception of the FDM unicast PDSCH and the multicast PDSCH. Specifically, the embodiment of the application can construct the FDM type 1codebook according to the TDRA table corresponding to the unicast DCI, the TDRA table corresponding to the multicast DCI or the combined set of the TDRA table corresponding to the unicast DCI and the TDRA table corresponding to the multicast DCI, thereby effectively reducing redundant bits, further reducing the size of the codebook and achieving the effects of saving PUCCH resources or improving the utilization rate of the resources.

It should be noted that, in the method for determining a hybrid automatic repeat request acknowledgement codebook according to the embodiment of the present application, the execution body may be a device for determining a hybrid automatic repeat request acknowledgement codebook, or a control module in the device for determining a hybrid automatic repeat request acknowledgement codebook for executing the method for determining a hybrid automatic repeat request acknowledgement codebook. In the embodiment of the present application, the method for determining the hybrid automatic repeat request acknowledgement codebook by using the hybrid automatic repeat request acknowledgement codebook determining device as an example is described.

Referring to fig. 9, fig. 9 is a block diagram of a hybrid automatic repeat request acknowledgement codebook determining apparatus according to an embodiment of the present application, and as shown in fig. 9, a hybrid automatic repeat request acknowledgement codebook determining apparatus 900 includes:

a first determining module 901, configured to determine a first set of time slot timing values;

a second determining module 902, configured to determine candidate PDSCH receiving opportunities in timeslots corresponding to each of the first set of timeslot timing values respectively; the number of candidate PDSCH receiving opportunities in a first time slot is larger than 1, the position of hybrid automatic repeat request acknowledgement (HARQ-ACK) information of a first unicast PDSCH in an HARQ-ACK codebook and the position of HARQ-ACK information of a first multicast PDSCH in the HARQ-ACK codebook correspond to different candidate PDSCH receiving opportunities in the first time slot respectively, the first unicast PDSCH and the first multicast PDSCH are unicast PDSCH and multicast PDSCH which are frequency division multiplexed in the first time slot, the first time slot is a time slot corresponding to a first time slot time sequence value, and the first time slot time sequence value is a time slot time sequence value in the first time slot time sequence value set;

a third determining module 903 is configured to determine the HARQ-ACK codebook according to a first set of candidate PDSCH receiving occasions, where the first set of candidate PDSCH receiving occasions includes candidate PDSCH receiving occasions in timeslots corresponding to each of the first set of timeslot timing values.

Optionally, in a case where the PDSCH transmitted in the first slot includes the first unicast PDSCH and the first multicast PDSCH, a position of HARQ-ACK information of the unicast PDSCH in the HARQ-ACK codebook corresponds to a first candidate PDSCH reception occasion in the first slot, and a position of HARQ-ACK information of the multicast PDSCH in the HARQ-ACK codebook corresponds to a second or last candidate PDSCH reception occasion in the first slot;

or alternatively

and/or

And/or

and/or

or alternatively

Or alternatively

and/or

or alternatively

and/or

Candidate PDSCH receiving opportunities in the timeslots corresponding to a second timeslot timing value in the first timeslot timing value set are determined according to a TDRA table corresponding to unicast DCI, where the second timeslot timing value belongs to the timeslot timing value set corresponding to the unicast DCI and does not belong to the second timeslot timing value set;

and/or

The hybrid automatic repeat request acknowledgement codebook determining device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or may be a component, an integrated circuit, or a chip in a terminal. The apparatus or electronic device may be a mobile terminal or a non-mobile terminal. By way of example, mobile terminals may include, but are not limited to, the types of terminals 11 listed above, and non-mobile terminals may be servers, network attached storage (Network Attached Storage, NAS), personal computers (personal computer, PCs), televisions (TVs), teller machines, self-service machines, etc., and embodiments of the present application are not limited in particular. But may also be a component, integrated circuit, or chip in a network-side device. By way of example, network-side devices may include, but are not limited to, the types of network-side devices 12 listed above.

The apparatus for determining the hybrid automatic repeat request acknowledgement codebook provided by the embodiment of the present application can implement each process implemented by the method embodiment of fig. 6, and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.

Optionally, as shown in fig. 10, an embodiment of the present application further provides a communication device 1000, including a processor 1001, a memory 1002, and a program or an instruction stored in the memory 1002 and capable of running on the processor 1001, where the program or the instruction is executed by the processor 1001, for example, when the communication device 1000 is a terminal, the program or the instruction implements the respective processes of the above-mentioned embodiment of the method for determining a hybrid automatic repeat request acknowledgement codebook, and can achieve the same technical effects. When the communication device 1000 is a network side device, the program or the instruction, when executed by the processor 1001, implements the processes of the above embodiment of the method for determining a hybrid automatic repeat request acknowledgement codebook, and can achieve the same technical effects, so that repetition is avoided and no further description is given here.

The embodiment of the application also provides communication equipment, which comprises a processor and a communication interface, wherein the processor is used for determining a first time slot time sequence value set; respectively determining candidate PDSCH receiving opportunities in the time slots corresponding to each time slot time sequence value in the first time slot time sequence value set; the number of candidate PDSCH receiving opportunities in a first time slot is larger than 1, the position of hybrid automatic repeat request acknowledgement (HARQ-ACK) information of a first unicast PDSCH in an HARQ-ACK codebook and the position of HARQ-ACK information of a first multicast PDSCH in the HARQ-ACK codebook correspond to different candidate PDSCH receiving opportunities in the first time slot respectively, the first unicast PDSCH and the first multicast PDSCH are unicast PDSCH and multicast PDSCH which are frequency division multiplexed in the first time slot, the first time slot is a time slot corresponding to a first time slot time sequence value, and the first time slot time sequence value is a time slot time sequence value in the first time slot time sequence value set; and determining the HARQ-ACK codebook according to a first candidate PDSCH receiving occasion set, wherein the first candidate PDSCH receiving occasion set comprises candidate PDSCH receiving occasions in time slots corresponding to each time slot time sequence value in the first time slot time sequence value set. The communication device embodiment corresponds to the communication device method embodiment, and each implementation process and implementation manner of the method embodiment are applicable to the communication device embodiment and can achieve the same technical effect. Alternatively, the communication device may be a terminal, and fig. 11 is a schematic hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 1100 includes, but is not limited to: at least some of the components of the radio frequency unit 1101, the network module 1102, the audio output unit 1103, the input unit 1104, the sensor 1105, the display unit 1106, the user input unit 1107, the interface unit 1108, the memory 1109, and the processor 1110, etc.

Those skilled in the art will appreciate that the terminal 1100 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 1110 by a power management system so as to perform functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 11 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine some components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 1104 may include a graphics processor (Graphics Processing Unit, GPU) 11041 and a microphone 11042, the graphics processor 11041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 1106 may include a display panel 11061, and the display panel 11061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1107 includes a touch panel 11071 and other input devices 11072. The touch panel 11071 is also referred to as a touch screen. The touch panel 11071 may include two parts, a touch detection device and a touch controller. Other input devices 11072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In the embodiment of the present application, after receiving downlink data from a network side device, the radio frequency unit 1101 processes the downlink data with the processor 1110; in addition, the uplink data is sent to the network side equipment. Typically, the radio frequency unit 111 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 1109 may be used to store software programs or instructions and various data. The memory 1109 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 1109 may include a high-speed random access Memory, and may also include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable ROM (EPROM), an Electrically Erasable Programmable EPROM (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 1110 may include one or more processing units; alternatively, processor 1110 may integrate an application processor that primarily processes operating systems, user interfaces, and applications or instructions, etc., with a modem processor that primarily processes wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 1110.

Wherein the processor 1110 is configured to determine a first set of time slot timing values; respectively determining candidate PDSCH receiving opportunities in the time slots corresponding to each time slot time sequence value in the first time slot time sequence value set; the number of candidate PDSCH receiving opportunities in a first time slot is larger than 1, the position of hybrid automatic repeat request acknowledgement (HARQ-ACK) information of a first unicast PDSCH in an HARQ-ACK codebook and the position of HARQ-ACK information of a first multicast PDSCH in the HARQ-ACK codebook correspond to different candidate PDSCH receiving opportunities in the first time slot respectively, the first unicast PDSCH and the first multicast PDSCH are unicast PDSCH and multicast PDSCH which are frequency division multiplexed in the first time slot, the first time slot is a time slot corresponding to a first time slot time sequence value, and the first time slot time sequence value is a time slot time sequence value in the first time slot time sequence value set; and determining the HARQ-ACK codebook according to a first candidate PDSCH receiving occasion set, wherein the first candidate PDSCH receiving occasion set comprises candidate PDSCH receiving occasions in time slots corresponding to each time slot time sequence value in the first time slot time sequence value set.

Compared with the prior art, which respectively constructs a sub-codebook of a unicast PDSCH and a sub-codebook of a multicast PDSCH according to the candidate PDSCH receiving time set corresponding to the unicast PDSCH and the candidate PDSCH receiving time set corresponding to the multicast PDSCH, the embodiment of the application constructs the HARQ-ACK codebook directly according to the candidate PDSCH receiving time set which can simultaneously comprise the candidate PDSCH receiving time corresponding to the frequency division multiplexing, namely, the type 1codebook, and then constructs the sub-codebook of the unicast PDSCH and the sub-codebook of the multicast PDSCH in cascade, thereby effectively reducing redundant bits, further reducing the size of the constructed FDM type 1codebook and saving HARQ feedback resources.

Or alternatively

or alternatively

and/or

And/or

and/or

Optionally, a correspondence between positions of HARQ-ACK information of the L multicast PDSCH in the HARQ-ACK codebook and first M or last M candidate PDSCH receiving opportunities in the first slot is determined according to a TDRA table corresponding to the unicast DCI;

and/or

or alternatively

Or alternatively

and/or

or alternatively

and/or

Alternatively, the communication device may be a network-side device. As shown in fig. 12, the network side device 1200 includes: an antenna 121, a radio frequency device 122, a baseband device 123. The antenna 121 is connected to a radio frequency device 122. In the uplink direction, the radio frequency device 122 receives information via the antenna 121, and transmits the received information to the baseband device 123 for processing. In the downlink direction, the baseband device 123 processes information to be transmitted, and transmits the processed information to the radio frequency device 122, and the radio frequency device 122 processes the received information and transmits the processed information through the antenna 121.

The above-described band processing apparatus may be located in the baseband apparatus 123, and the method performed by the network-side device in the above embodiment may be implemented in the baseband apparatus 123, where the baseband apparatus 123 includes the processor 124 and the memory 125.

The baseband apparatus 123 may, for example, include at least one baseband board, where a plurality of chips are disposed, as shown in fig. 12, where one chip, for example, a processor 124, is connected to the memory 125, so as to call a program in the memory 125 to perform the network side device operation shown in the above method embodiment.

The baseband apparatus 123 may further include a network interface 126 for interacting with the radio frequency apparatus 122, such as a common public radio interface (common public radio interface, CPRI for short).

Specifically, the network side device of the embodiment of the present application further includes: instructions or programs stored in the memory 125 and executable on the processor 124, the processor 124 invokes the instructions or programs in the memory 125 to perform the methods performed by the modules shown in fig. 9 and achieve the same technical effects, and are not repeated here.

The embodiment of the application also provides a readable storage medium, and the readable storage medium stores a program or an instruction, which when executed by a processor, implements each process of the above embodiment of the method for determining the hybrid automatic repeat request acknowledgement codebook, and can achieve the same technical effect, so that repetition is avoided and no further description is given here.

The processor is a processor in the terminal described in the above embodiment, or a processor in the network side device 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 (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

The embodiment of the application further provides a chip, the chip comprises a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running a program or instructions, the processes of the embodiment of the method for determining the hybrid automatic repeat request acknowledgement codebook are realized, the same technical effects can be achieved, and the repetition is avoided, so that the description is omitted.

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

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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network side device, etc.) to perform the method according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. A method for determining a hybrid automatic repeat request acknowledgement codebook, comprising:

the communication device determining a first set of time slot timing values;

2. The method of claim 1, wherein the step of determining the position of the substrate comprises,

in the case that the PDSCH transmitted in the first slot includes the first unicast PDSCH and the first multicast PDSCH, the position of the HARQ-ACK information of the first unicast PDSCH in the HARQ-ACK codebook corresponds to a first candidate PDSCH reception occasion in the first slot, and the position of the HARQ-ACK information of the first multicast PDSCH in the HARQ-ACK codebook corresponds to a second or last candidate PDSCH reception occasion in the first slot;

or alternatively

In the case that the PDSCH transmitted in the first slot includes the first unicast PDSCH and the first multicast PDSCH, the position of the HARQ-ACK information of the first multicast PDSCH in the HARQ-ACK codebook corresponds to a first candidate PDSCH reception occasion in the first slot, and the position of the HARQ-ACK information of the first unicast PDSCH in the HARQ-ACK codebook corresponds to a second candidate or last PDSCH reception occasion in the first slot;

or alternatively

3. The method of claim 1, wherein the number of candidate PDSCH reception occasions within the first time slot is determined according to at least one of U, M and P;

4. The method of claim 3, wherein the step of,

when U is greater than or equal to 2, the candidate PDSCH reception opportunities in the first slot include U candidate PDSCH reception opportunities determined according to the TDRA table corresponding to the unicast DCI;

5. The method of claim 3, wherein the step of,

when U is greater than or equal to M and U is greater than or equal to 2, candidate PDSCH reception opportunities in the first slot include U candidate PDSCH reception opportunities determined according to the TDRA table corresponding to the unicast DCI;

6. The method of claim 3, wherein the step of,

when P is greater than or equal to 2, the candidate PDSCH reception opportunities in the first slot include P candidate PDSCH reception opportunities determined according to a set of the TDRA table corresponding to the unicast DCI and the table corresponding to the multicast DCI;

7. The method according to any one of claim 4 to 6, wherein,

when the first time slot only transmits one multicast PDSCH, the position of the HARQ-ACK information of the multicast PDSCH in the HARQ-ACK codebook corresponds to the J candidate PDSCH receiving opportunity in the first time slot, where J is a positive integer and is less than or equal to the number of candidate PDSCH receiving opportunities in the first time slot;

And/or

and/or

8. The method of claim 5, wherein the step of determining the position of the probe is performed,

if U is greater than or equal to M and U is greater than or equal to 2, if L multicast PDSCH is transmitted in the first time slot, the position of HARQ-ACK information of the L multicast PDSCH in the HARQ-ACK codebook corresponds to L candidate PDSCH reception opportunities in the first time slot, where L is a positive integer less than or equal to M, and the L candidate PDSCH reception opportunities are L candidate PDSCH reception opportunities in the first M or the last M candidate PDSCH reception opportunities in the U candidate reception opportunities;

And/or

9. The method of claim 8, wherein the step of determining the position of the first electrode is performed,

the corresponding relation between the positions of the HARQ-ACK information of the L multicast PDSCH in the HARQ-ACK codebook and the first M or the last M candidate PDSCH receiving opportunities in the first time slot is determined according to a TDRA table corresponding to the multicast DCI;

and/or

10. The method of claim 3, wherein the candidate PDSCH reception occasions within the first time slot comprise U candidate PDSCH reception occasions and a first candidate PDSCH reception occasion determined from a TDRA table corresponding to the unicast DCI, wherein the first candidate PDSCH reception occasion is one candidate PDSCH reception occasion located after or before the U candidate PDSCH reception occasion;

Or alternatively

or alternatively

11. The method of claim 10, wherein the candidate PDSCH reception occasions within the first time slot comprise according to the U candidate PDSCH reception occasions and the first candidate PDSCH reception occasion;

And/or

12. The method of claim 11, wherein correspondence between locations of HARQ-ACK information for the Q multicast PDSCHs in the HARQ-ACK codebook and first or last M candidate PDSCH reception opportunities of the U candidate PDSCH reception opportunities is determined according to a TDRA table corresponding to the multicast DCI.

13. The method of claim 10, wherein the candidate PDSCH reception occasions within the first time slot comprise according to the M candidate PDSCH reception occasions and the second candidate PDSCH reception occasion;

And/or

14. The method of claim 13, wherein a correspondence between a position of HARQ-ACK information for the R unicast PDSCH in the HARQ-ACK codebook and a first U or a last U candidate PDSCH reception occasions of the M candidate PDSCH reception occasions is determined according to a TDRA table corresponding to the unicast DCI.

15. The method of claim 10, wherein the candidate PDSCH reception occasions within the first time slot comprise according to the P candidate PDSCH reception occasions and the third candidate PDSCH reception occasion;

Or alternatively

16. The method of claim 1, wherein the first set of slot timing values is a combined set of a set of slot timing values corresponding to unicast DCI and a set of slot timing values corresponding to multicast DCI.

17. The method of claim 16, wherein the first time slot timing value belongs to a second time slot timing value set, wherein the second time slot timing value set is an intersection of a time slot timing value set corresponding to the unicast DCI and a time slot timing value set corresponding to the multicast DCI;

and/or

And/or

18. The method of claim 1, wherein the first time slot timing value is any time slot timing value in the first set of time slot timing values.

19. A hybrid automatic repeat request acknowledgement codebook determining apparatus, comprising:

a second determining module, configured to determine candidate PDSCH receiving opportunities in timeslots corresponding to each timeslot timing value in the first set of timeslot timing values respectively; the number of candidate PDSCH receiving opportunities in a first time slot is larger than 1, the position of hybrid automatic repeat request acknowledgement (HARQ-ACK) information of a first unicast PDSCH in an HARQ-ACK codebook and the position of HARQ-ACK information of a first multicast PDSCH in the HARQ-ACK codebook correspond to different candidate PDSCH receiving opportunities in the first time slot respectively, the first unicast PDSCH and the first multicast PDSCH are the first unicast PDSCH and the multicast PDSCH which are frequency division multiplexed in the first time slot, the first time slot is a time slot corresponding to a first time slot time sequence value, and the first time slot time sequence value is a time slot time sequence value in the first time slot time sequence value set;

20. The apparatus of claim 19, wherein the device comprises a plurality of sensors,

or alternatively

Or alternatively

21. The apparatus of claim 19, wherein a number of candidate PDSCH reception occasions within the first time slot is determined according to at least one of U, M and P;

22. The apparatus of claim 21, wherein the device comprises a plurality of sensors,

23. The apparatus of claim 21, wherein the device comprises a plurality of sensors,

24. The apparatus of claim 21, wherein the device comprises a plurality of sensors,

25. The device according to any one of claims 22 to 24, wherein,

and/or

26. The apparatus of claim 23, wherein the device comprises a plurality of sensors,

and/or

27. The apparatus of claim 21, wherein the candidate PDSCH reception occasions within the first time slot comprise U candidate PDSCH reception occasions and a first candidate PDSCH reception occasion determined from a TDRA table corresponding to the unicast DCI, wherein the first candidate PDSCH reception occasion is one candidate PDSCH reception occasion that is located after or before the U candidate PDSCH reception occasion;

Or alternatively

or alternatively

28. The apparatus of claim 27, wherein the candidate PDSCH reception occasions within the first time slot comprise according to the U candidate PDSCH reception occasions and the first candidate PDSCH reception occasion;

And/or

29. The apparatus of claim 27, wherein the candidate PDSCH reception occasions within the first time slot comprise according to the M candidate PDSCH reception occasions and the second candidate PDSCH reception occasion;

and/or

30. The apparatus of claim 27, wherein the candidate PDSCH reception occasions within the first time slot comprise according to the P candidate PDSCH reception occasions and the third candidate PDSCH reception occasion;

or alternatively

31. The apparatus of claim 19, wherein the first set of slot timing values is a combined set of a set of slot timing values corresponding to unicast DCI and a set of slot timing values corresponding to multicast DCI.

32. The apparatus of claim 31, wherein the first time slot timing value belongs to a second time slot timing value set, wherein the second time slot timing value set is an intersection of a time slot timing value set corresponding to the unicast DCI and a time slot timing value set corresponding to the multicast DCI;

and/or

33. The apparatus of claim 19, wherein the first time slot timing value is any time slot timing value in the first set of time slot timing values.

34. A communication device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor implements the steps of the hybrid automatic repeat request acknowledgement codebook determination method as claimed in any of claims 1 to 18.

35. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the hybrid automatic repeat request acknowledgement codebook determination method according to any of claims 1 to 18.