CN114374486B

CN114374486B - HARQ-ACK transmission method, terminal and network side equipment

Info

Publication number: CN114374486B
Application number: CN202011099463.XA
Authority: CN
Inventors: 陈晓航; 潘学明
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2024-05-31
Anticipated expiration: 2040-10-14
Also published as: CN114374486A; WO2022078288A1

Abstract

The application discloses a transmission method of HARQ-ACK, a terminal and network side equipment, and belongs to the technical field of wireless communication. The method comprises the following steps: receiving second information, wherein the second information is used for scheduling, activating or configuring a PDSCH containing the first PDSCH; receiving first information, wherein the first information indicates a first time domain position or a second time domain position, the first time domain position is the time domain position of the first information, and the second time domain position is the time domain position of one or more PDSCH; determining a first PDSCH according to the first time domain position or the second time domain position; and transmitting a first HARQ-ACK corresponding to at least part of PDSCH in the first PDSCH on a first uplink channel. The application can ensure that the HARQ-ACK is prevented from being discarded due to the conflict between the HARQ-ACK and unavailable resources when the terminal transmits the HARQ-ACK corresponding to the PDSCH, and ensures the transmission of the HARQ-ACK.

Description

HARQ-ACK transmission method, terminal and network side equipment

Technical Field

The application belongs to the technical field of wireless communication, and particularly relates to a transmission method, a terminal and network side equipment of HARQ-ACK.

Background

For physical uplink control channel (Physical Uplink Control Channel, PUCCH) transmission carrying hybrid automatic repeat request acknowledgement (Hybrid Automatic Repeat request Acknowledge, HARQ-ACK), HARQ-ACK may be dropped due to collision with Downlink (DL) resources, unavailable (invalid) resources, flexible (flexible) resources, or physical uplink control channel/physical uplink shared channel (PUCCH/PUSCH) of different priorities, resulting in reduced performance of downlink transmission.

Disclosure of Invention

The embodiment of the application provides a transmission method, a terminal and network side equipment of HARQ-ACK, which can solve the problem that the HARQ-ACK is possibly discarded when the HARQ-ACK collides with unavailable resources, thereby causing the performance of downlink transmission to be reduced.

In a first aspect, a transmission method of HARQ-ACK is provided, applied to a terminal, and the method includes:

receiving second information for scheduling, activating, or configuring a PDSCH including the first PDSCH;

Receiving first information, wherein the first information indicates a first time domain position or a second time domain position, the first time domain position is the time domain position of the first information, and the second time domain position is the time domain position of one or more PDSCH;

Determining the first PDSCH according to the first or second time domain position;

And transmitting a first HARQ-ACK corresponding to at least part of PDSCH in the first PDSCH in a first uplink channel.

In a second aspect, a transmission method of HARQ-ACK is provided, applied to a network side device, where the method includes:

Transmitting second information to the terminal, wherein the second information is used for scheduling, activating or configuring a PDSCH containing the first PDSCH;

Transmitting first information to the terminal, wherein the first information is used for determining a first PDSCH; the first information indicates a first time domain position or a second time domain position, the first time domain position being a time domain position of the first information, the second time domain position being a time domain position of one or more PDSCH;

And receiving a first HARQ-ACK corresponding to at least part of PDSCH in the first PDSCH sent by the terminal in a first uplink channel.

In a third aspect, there is provided a transmission apparatus of HARQ-ACK, including:

a first receiving module, configured to receive second information, where the second information is used to schedule, activate, or configure a PDSCH including a first PDSCH;

The second receiving module is used for receiving the first information; the first information indicates a first time domain position or a second time domain position, the first time domain position being a time domain position of the first information, the second time domain position being a time domain position of one or more PDSCH;

A determining module, configured to determine a first PDSCH according to the first time domain position or the second time domain position;

And the sending module is used for sending the first HARQ-ACK corresponding to at least part of the PDSCH in the first uplink channels.

In a fourth aspect, there is provided a transmission apparatus of HARQ-ACK, including:

the first sending module is used for sending second information to the terminal, wherein the second information is used for scheduling, activating or configuring a PDSCH containing the first PDSCH;

The second sending module is used for sending first information to the terminal, wherein the first information is used for determining a first PDSCH; the first information indicates a first time domain position or a second time domain position, the first time domain position being a time domain position of the first information, the second time domain position being a time domain position of one or more PDSCH;

And the receiving module is used for receiving the first HARQ-ACK corresponding to at least part of PDSCH in the first PDSCH sent by the terminal in the first uplink channel.

In a fifth aspect, there is provided a terminal 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 sixth aspect, there is provided a network side 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 second aspect.

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

In an eighth aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being configured to run a network side device program or instruction, to implement the method according to the first aspect, or to implement the method according to the second aspect.

In a ninth aspect, there is provided a program product stored in a non-volatile storage medium, the program product being executable by at least one processor to implement the method according to the first aspect or to implement the method according to the second aspect.

In the embodiment of the application, the terminal determines the first PDSCH according to the first information sent by the network side equipment, and sends the HARQ-ACK corresponding to at least part of PDSCH in the first PDSCH on the appointed uplink channel, thereby ensuring that the HARQ-ACK is prevented from being discarded due to collision between the HARQ-ACK and unavailable resources when the terminal transmits the HARQ-ACK, ensuring the transmission of the HARQ-ACK and improving the performance of PDSCH transmission.

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 type of symbol included in a slot;

Fig. 3 is a flow chart of a transmission method of HARQ-ACK applied to a terminal according to an embodiment of the present application;

fig. 4 is an exemplary diagram of a transmission method of HARQ-ACK according to an embodiment of the present application;

Fig. 5 is an exemplary diagram of a transmission method of HARQ-ACK according to another embodiment of the present application;

fig. 6 is an exemplary diagram of a transmission method of HARQ-ACK according to still another embodiment of the present application;

fig. 7 is an exemplary diagram of a transmission method of HARQ-ACK according to still another embodiment of the present application;

fig. 8 is an exemplary diagram of a transmission method of HARQ-ACK according to still another embodiment of the present application;

fig. 9 is a flowchart of a transmission method of HARQ-ACK applied to a network side device according to an embodiment of the present application;

Fig. 10 is an exemplary diagram of a transmission method of HARQ-ACK according to still another embodiment of the present application;

fig. 11 is an exemplary diagram of a transmission method of HARQ-ACK according to still another embodiment of the present application;

Fig. 12 is a schematic diagram of a transmission apparatus of HARQ-ACK according to an embodiment of the present application;

Fig. 13 is a schematic diagram of a transmission apparatus of HARQ-ACK according to another embodiment of the present application;

fig. 14 is a schematic structural diagram of a communication device according to an embodiment of the present application;

Fig. 15 is a schematic hardware structure of a terminal according to an embodiment of the present application;

Fig. 16 is a schematic hardware structure of a network side device according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope 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 data so used may be interchanged where appropriate, such that embodiments of the application may be practiced otherwise than as specifically illustrated and described herein, and that the "first" and "second" distinguishing between objects generally being of the same type, and not necessarily limited to the number of objects, such as the first object may 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. However, the following description describes a New Radio (NR) system for exemplary purposes, and NR terminology is used in much of the following description, these techniques may also be applied to applications other than NR system applications, such as a 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 referred to as 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 Personal digital assistant (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 (Wearable Device) or a vehicle-mounted device (VUE), a pedestrian terminal (PUE), and the wearable device includes: a bracelet, earphone, glasses, 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, where 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.

First, some technical matters related to the present application will be described.

1.1 Semi-persistent scheduling (semi-PERSISTENT SCHEDULING, SPS)

Future 5G mobile communication systems need to accommodate more diverse scenarios and service requirements than previous mobile communication systems. The main scenarios of NR include mobile broadband enhancement (eMBB), large-scale internet of things (mMTC), ultra-high reliability ultra-low latency communications (URLLC), which place high reliability, low latency, large bandwidth, wide coverage, etc. requirements on the system.

These different services have different quality of service (Quality of Service, qoS) requirements, e.g., URLLC supports low latency, high reliability services. In order to achieve higher reliability, it is desirable to transmit data using a lower code rate, while requiring faster, more accurate feedback of Channel State Information (CSI). eMBB traffic supports the high throughput requirement but is not as sensitive to latency and reliability as URLLC. In addition, for some UEs may support services with different numerical configurations (numerology), the UE supports both URLLC low latency and high reliability services, while supporting high capacity and high rate eMBB services.

For the service with a fixed data packet size and a periodic appearance, in order to reduce the cost of downlink control signaling, the network can adopt a semi-static scheduling mode to continuously allocate certain resources for the transmission of the periodic service. This manner of scheduling in the downlink semi-persistent is called DL SPS (semi-PERSISTENT SCHEDULING), which can reduce the overhead of scheduling periodically transmitted VoLTE voice packets (mainly the overhead of the physical downlink control channel (Physical Downlink Control Channel, PDCCH)) so that more resources are available for scheduling additional UEs.

1.2 Unlicensed bands

In future communication systems, the unlicensed band (unlicensed band) may be used as a complement to the licensed band (licensed band) to aid the operator in expanding services. To keep pace with NR deployment and maximize as much as possible unlicensed access based on NR, unlicensed bands may operate in the 5GHz,37GHz and 60GHz bands. The large bandwidth (80 or 100 MHz) of the unlicensed band can reduce the implementation complexity of the base station and the UE. Since unlicensed bands are shared by multiple technologies (RATs), such as WiFi, radar, assisted licensed access (Licensed-ASSISTED ACCESS, LTE-LAA), etc., in certain countries or regions, unlicensed bands must be used in compliance with rules (regulation) to ensure that all devices can use the resources fairly, such as listen-before-talk (Listen Before Talk, LBT), maximum channel occupancy time (Maximum Channel Occupancy Time, MCOT), etc. When the transmission node needs to send information, it needs to make LBT first, and perform power detection (ED) on surrounding nodes, and when the detected power is lower than a threshold, consider the channel as empty (idle), and the transmission node can send. Otherwise, the channel is considered as busy, and the transmission node cannot transmit. The transmission node may be a base station, UE, wiFi AP, etc. After the transmission node starts transmission, the occupied channel time COT cannot exceed MCOT.

1.3 Downlink semi-persistent scheduling (DL SPS)

The network configures parameters required for DL SPS for the UE through higher layer signaling, such as period, number of hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) processes, resources for HARQ-ACK feedback, etc. After the UE configures DL SPS configuration, the base station activates the configured DL SPS configuration through downlink control information (Downlink Control Information, DCI). The DCI includes transmission parameters such as DL SPS transmission resources and modulation and coding scheme (Modulation and coding scheme, MCS). The UE determines the time of DL SPS transmissions and frequency resources at the corresponding time by receiving the activation DCI. At each DL SPS time instant, the UE listens to the DL SPS resources for a corresponding data transmission.

If the network is to release the allocated DL SPS resources, the base station may transmit a deactivation DCI to release the DL SPS resources.

In addition, the network may configure one or more DL SPS configuration resources to the UE.

1.4HARQ-ACK TIMING (HARQ-ACK timing)

HARQ-ACK TIMING is defined as the interval from the end of the downlink data reception to the time of the corresponding ACK/NACK feedback. The NR supports flexible HARQ-ACK TIMING configurations for accommodating different traffic and network deployments. Each UE may configure a UE-specific HARQ-ACK TIMING table through radio resource control (Radio Resource Control, RRC) that contains a plurality of HARQ-ACK TIMING values, referred to as K1 values, K1 being in time slots. When the base station dynamically schedules downlink data transmission, a K1 value is indicated in the DCI in an index mode, wherein the K1 is a value selected from a HARQ-ACK TIMING table special for the UE and is used for informing the UE of the moment of feeding back the HARQ-ACK.

If the field indicating HARQ-ACK TIMING is not included in the DCI, the UE may determine an interval of downlink data to HARQ-ACK feedback according to a fixed value.

For one DL SPS PDSCH sent at slot n, its corresponding HARQ-ACK is transmitted on slot n+k, where K is indicated in the DCI activating the DL SPS.

1.5HARQ-ACK codebook (codebook):

For HARQ-ACK processes supporting transport block level (TB-level) feedback, each Transport Block (TB) corresponds to feeding back one HARQ-ACK bit (bit), supporting multiple DL HARQ processes per UE, and also supporting a single DL HARQ process per UE, the UE needs the ability to indicate its minimum HARQ processing time (minimum HARQ processing time means the minimum time required to receive the corresponding HARQ-ACK transmission timing from Downlink data). Asynchronous and adaptive Downlink HARQ is supported for eMBB and URLLC. From the UE's perspective, HARQ-ACK feedback for multiple PDSCH's may be transmitted in time in one UL data/control region, constituting one HARQ-ACK codebook on this UL. The timing between PDSCH reception and the corresponding ACK/NACK is specified in DCI (see PDSCH-to-HARQ timing indicators in DCI 1_0, DCI 1_1).

In R15, two types of HARQ-ACK codebooks are supported, type 1 (type-1): semi-static HARQ-ACK codebook and type 2 (type-2): dynamic (dynamic) HARQ-ACK codebook. For semi-static HARQ-ACK codebook, the UE determines that all PDSCH that a certain slot may feed back according to parameters such as the detection opportunity (PDCCH monitoring occasion) of PDCCH configured by RRC, time domain resource allocation of PDSCH (PDSCH-TimeDomainResourceAllocation), feedback timing of PDSCH to HARQ-ACK (dl-DataToUL-ACK or PDSCH-toHARQ-timing), etc. the codebook is typically large because it may contain HARQ for actually scheduled and unscheduled PDSCH. For DYNAMIC HARQ-ACK codebook, the UE determines the HARQ-ACK codebook according to the actually scheduled PDSCH, and the codebook size of the HARQ-ACK is usually smaller than that of semi-STATIC HARQ-ACK codebook because only the actually scheduled PDSCH is fed back. Which type of codebook the UE specifically uses is determined by RRC configuration.

1.6PUCCH resource determination method

In Rel-15, the base station may configure one or more (up to 4) PUCCH resource sets (PUCCH resource set) for each UE through RRC signaling, the RRC configuration or predefining a maximum number of bits of uplink control information (Uplink Control Information, UCI) payload that each resource set (RESET) may carry (e.g. the first RESET up to 2 bits, the 2 rd and 3 rd RESET is N1, N2, the 4 th RESET up to 1706 bits, and N1, N2 is the RRC configuration), and each RESET may include multiple PUCCH resources (up to 32 PUCCH resources in the first RESET, and each other RESET includes up to 8 PUCCH resources). On the UE side, after receiving the PDSCH, the UE needs to feedback the HARQ-ACK, in order to determine the PUCCH resource where the feedback HARQ-ACK is located, the UE needs to determine the slot (slot) where the PUCCH is located by scheduling K1 in the PDCCH of the PDSCH, then determine the RESET where the PUCCH is located by the number of bits of the HARQ-ACK that needs to be fed back, and in the determined RESET, determine which PUCCH resource (when the number of resources contained in the RESET exceeds 8) is specifically determined according to the PRI (PUCCH resource indicator) field of the PDCCH (when the number of resources contained in the RESET) or the pri+the index (first cceindex) of the first Control channel unit (Control CHANNEL ELEMENT, CCE) of the PDCCH. When there is HARQ-ACK feedback of multiple PDSCH in one slot (slot), the UE determines PUCCH resources according to the PRI and cceindex in the last DCI (last DCI) that schedules the PDSCH.

1.7 Time Slot format (Slot format)

In order to realize flexible network deployment, the transmission direction of each symbol in one time slot is configured in a slot format (slot format) manner in an NR system.

The transmission direction of the time slot in NR has three definitions, downlink (DL), uplink (UL), flexible. When the network configures a time slot or a symbol as DL or UL, the transmission direction at the moment is clear; when the network is configured with a slot or symbol that is flexible, the transmission direction at that time is pending. The network may modify the transmission direction of slots or symbols of the flexible by dynamic signaling, such as dynamic slot format indication (slot format indicator, SFI).

As shown in fig. 2, one slot may contain downlink (downlink), uplink (uplink) and flexible (flexible) orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols; the Flexible symbols may be rewritten as downlink or uplink symbols.

The slot format indication (slot format indicator, SFI) may indicate the format of one or more slots. The SFI is sent in the GC-PDCCH.

The SFI can flexibly change the slot format according to the requirement so as to meet the service transmission requirement.

The UE decides whether to monitor the PDCCH according to the indication of the SFI.

Slot configuration:

The base station may semi-statically configure the UE with one or more cell-specific (cell-specific) slot formats via the higher layer parameters UL-DL-configuration-common and UL-DL-configuration-common-Set2 (optional).

The base station may also configure one or more UE-specific (UE-specific) slots by the higher layer parameters UL-DL-configuration-defined semi-statically for the UE.

The base station can rewrite the flexible symbol or slot in the semi-static configuration through the SFI carried in the GC-PDCCH.

The transmission direction implicitly indicated by the UE-specific RRC configuration is collectively referred to as measurement (measurement), and includes:

Periodic or semi-static CSI-RS measurement of UE-specific RRC signaling configuration, periodic CSI reporting and uplink and downlink transmission directions implicitly indicated by periodic or semi-static SRS.

UE-specific RRC configured Physical Random access channel (Physical Random ACCESS CHANNEL, PRACH) resources, type1 and type2 unlicensed uplink transmissions.

For the unlicensed uplink transmission of type2, only the transmission on the first activated resource is considered as UE-specific data (UE-SPECIFIC DATA).

UE-specific transmissions include PDCSH, PUSCH (Physical Uplink SHARED CHANNEL), ACK/NACK feedback for PDSCH (Physical downlink shared channel ), DCI triggered aperiodic measurements, and the like.

1.8NR R16 PUCCH/PUSCH priority (prioritization)

In NR 16, it is considered that one UE may support different services at the same time, where different services correspond to different service requirements, such as delay, reliability, and so on. Therefore, a mechanism for marking the priority of the PUCCH/PUSCH is introduced, and the priority of a 2-level physical layer, namely high priority and low priority, is specifically introduced. For example, the priorities of the HARQ-ACKs of the scheduling request (scheduling request, SR), CG PUSCH (physical uplink shared channel), SPS PDSCH (physical downlink shared channel) and release thereof (release) are configured by RRC signaling, and are regarded as low priority for P-CSI or SP-CSI on PUCCH. For HARQ-ACK, DG PUSCH, a-CSI/SP-CSI on PUSCH, etc. of the dynamically scheduled PDSCH is indicated by a 1-bit field in the corresponding scheduled DCI. The priority of the PUCCH is then determined by the HARQ-ACK/SR/CSI it carries. When different channel time domain resources overlap, if the channel time domain resources are of the same priority, the channel time domain resources are processed according to multiplexing rules defined by NR R15, and if the channel time domain resources are of different priorities, the UE discards the channel of low priority and transmits the channel of high priority. If the channels have the same priority and different priorities, the UE processes according to the multiplexing rule defined by NR R15, and then processes the channels with different priorities. Meanwhile, when the UE processes different priorities, the low priority is discarded, a certain processing time is also required for transmitting the high priority channel, and the discarding/cancelling time requirement when the UE processes the different priority channels is defined in the R16 protocol.

The HARQ-ACK transmission method, terminal and network side device provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Referring to fig. 3, an embodiment of the present application provides a transmission method of HARQ-ACK, which is applied to a terminal, and includes:

Step 31: receiving second information for scheduling, activating, or configuring a PDSCH including the first PDSCH;

the second information may be downlink grant DCI, dynamically scheduling PDSCH;

The second information may also be an activate DCI activating a semi-statically scheduled PDSCH;

the second information may also be RRC configuring the semi-persistent scheduled PDSCH.

Step 32: receiving first information, wherein the first information indicates a first time domain position or a second time domain position, the first time domain position is the time domain position of the first information, and the second time domain position is the time domain position of one or more PDSCH;

Optionally, the time domain location of the PDSCH includes at least one of: a starting position, an ending position of the PDSCH, and a length of the PDSCH.

Step 33: determining the first PDSCH according to the first or second time domain position;

step 34: and transmitting a first HARQ-ACK corresponding to at least part of PDSCH in the first PDSCH in a first uplink channel.

In the embodiment of the application, the terminal determines the first PDSCH according to the first information sent by the network side equipment, and sends the HARQ-ACK corresponding to at least part of PDSCH in the first PDSCH on the appointed uplink channel, thereby ensuring the transmission of the HARQ-ACK when the HARQ-ACK is discarded due to the conflict of the HARQ-ACK and unavailable resources, and improving the performance of PDSCH transmission.

In the embodiment of the present application, the first PDSCH determined according to the first time domain position or the second time domain position may be one or more than one. If the first PDSCH determined according to the first time domain position or the second time domain position is one, a first HARQ-ACK corresponding to the first PDSCH may be transmitted on a first uplink channel. And if the number of the first PDSCH is multiple, which is determined according to the first time domain position or the second time domain position, transmitting first HARQ-ACK corresponding to at least part of PDSCH in the first PDSCH in a first uplink channel.

In an embodiment of the present application, optionally, the first information may be carried by DCI or a radio resource control (Radio Resource Control, RRC) message. The DCI may be one of:

DCI of dynamic scheduling PDSCH;

DCI of non-scheduled PDSCH;

dynamically scheduling DCI of PUSCH;

Group-specific (DCI).

In an embodiment of the present application, optionally, the first PDSCH is one or more PDSCH.

In the embodiment of the present application, optionally, the first PDSCH is a dynamically scheduled PDSCH or a semi-statically scheduled PDSCH.

In the embodiment of the present application, optionally, the PDSCH of the semi-persistent scheduling is an activated PDSCH of the semi-persistent scheduling or a received PDSCH of the semi-persistent scheduling.

In the embodiment of the present application, optionally, the first uplink channel is PUCCH or PUSCH.

In the embodiment of the present application, optionally, the first uplink channel is scheduled or configured by a network side.

In this embodiment of the present application, optionally, the first uplink channel is indicated by the first information or other indication information. The other indication information may be DCI or an RRC message.

In the embodiment of the present application, optionally, the HARQ-ACK codebook corresponding to the first HARQ-ACK is one of the following types:

a semi-static codebook; i.e., type 1 (Type 1) codebook;

A dynamic codebook; i.e., type 2 (Type 2) codebook;

An enhanced dynamic codebook; i.e., ENHANCED TYPE codebook;

Codebook based on HARQ-ACK process; i.e., type 3 (Type 3) codebook.

A method of how to determine the first PDSCH is described below.

1) The first information indicates a first time domain position, the first time domain position being a time domain position of the first information, at which time the first PDSCH includes at least one of:

PDSCH with start or end position located after the first time domain position;

a PDSCH whose starting position or ending position is located before the first time domain position.

Optionally, the time domain position of the first information is a starting position or an ending position of a downlink channel carrying the first information, and the downlink channel is a physical downlink control channel PDCCH or PDSCH.

Optionally, the distance between the time domain position of the first PDSCH and the first time is greater than or equal to a first duration, where the first time is a starting position of a first uplink channel for transmitting the first HARQ-ACK, and the first duration is configured or predefined by the network side. The first PDSCH may include one or more PDSCH.

If the first PDSCH includes multiple PDSCHs, a distance between a time domain position of any one PDSCH in the first PDSCH and the first time is greater than or equal to a first duration.

Optionally, the first duration is an offset value K1 between PDSCH and HARQ-ACK.

Where K1 is indicated by the network or configured by the network, K1 may be a slot, sub-slot, symbol, or the like.

Specifically, K1 is an offset value between the PDSCH and the corresponding HARQ-ACK feedback time.

Optionally, the first duration is a first processing time N1.

Alternatively, the first processing time may be any one or more of:

PDSCH processing time, such as Tproc,1;

PUSCH preparation times, such as Tproc,2;

uplink transmission cancellation time, e.g., tproc,2+d1;

a first multiplexing time, such as Tproc,1+1;

a second multiplexing time, such as Tproc,2+1;

PUCCH preparation time, such as N3.

Optionally, the interval between the time domain position of the first PDSCH and the second time is not greater than a second duration, where the second time is the first time domain position or the second time domain position or the starting position of the first uplink channel, and the second duration is configured or predefined by the network side. The first PDSCH may include one or more PDSCH.

If the first PDSCH includes multiple PDSCHs, an interval between a time domain position of any one PDSCH in the first PDSCH and the second time is not greater than a second duration.

Optionally, the second duration is a maximum value or a minimum value in a network side configuration or a predefined time domain position set.

Referring to fig. 4, in fig. 4, the first information indicates a first time domain position, where the first time domain position is a time domain position t0 of the first information (in this embodiment, t0 is an end position of a PDCCH or a PDSCH carrying the first information), and the first PDSCH is a PDSCH whose start position or end position is located after the first time domain position t0, that is, PDSCH5, PDSCH6, and PDSCH7 in fig. 4. The distance (T1, T2, and T3) between the time domain position (end position) of any one PDSCH in the first PDSCH and the first time T2 is greater than or equal to N1, where the first time T2 is the starting position of the first uplink channel (PUCCH 2) for transmitting the first HARQ-ACK, and N1 is the processing time of the PDSCH or PUSCH. In this embodiment, optionally, the first information is further used to indicate PUCCH2 for transmitting the first HARQ-ACK.

Referring to fig. 5, in fig. 5, the first information indicates a first time domain position, where the first time domain position is a time domain position t0 of the first information (in this embodiment, t0 is an end position of a PDCCH or a PDSCH carrying the first information), and the first PDSCH is a PDSCH whose end position is located before the first time domain position t0, that is, PDSCH1, PDSCH2, PDSCH3, PDSCH4, and PDSCH5 in fig. 5. The interval between the time domain position (starting position or ending position) of any one PDSCH in the first PDSCH and T0 is not greater than T0, and T0 is a maximum value or a minimum value in the network side configuration or the predefined time domain position set.

Referring to fig. 6, in fig. 6, the first information indicates a first time domain position, where the first time domain position is a time domain position t0 of the first information (in this embodiment, t0 is an end position of a PDCCH or a PDSCH carrying the first information), and the first PDSCH is a PDSCH (PDSCH 3, PDSCH4, PDSCH 5) whose end position is located before the first time domain position t0 and a PDSCH (PDSCH 6, PDSCH 7) whose end position is located after the first time domain position t 0. The interval between the time domain position (starting position or ending position) of any one PDSCH in the first PDSCH and the first time T2 is greater than or equal to N1, the first time T2 is the starting position of the first uplink channel (PUCCH 2) for transmitting the first HARQ-ACK, N1 is the processing time of the PDSCH or PUSCH, and the interval between the time domain position of any one PDSCH in the first PDSCH and T0 is not greater than T0, and T0 is the maximum value or the minimum value in the network side configuration or the predefined time domain position set.

In the above figures, DL represents downlink, UL represents uplink, S represents DL (Flexible) or UL contained in the slot, and the same meaning is used in the following similar figures, and the description is not repeated.

2) The first information indicates a second time domain position, the second time domain position being a time domain position of one or more PDSCH of the first PDSCH;

21 If the second time domain position is a time domain position, the first PDSCH includes at least one of:

PDSCH with start or end position located after the second time domain position;

PDSCH with start or end position before the second time domain position;

PDSCH located in the second time domain location.

Optionally, a distance between a time domain position (a starting position or an ending position) of the first PDSCH and a first time is greater than or equal to a first duration, where the first time is a starting position of a first uplink channel for transmitting the first HARQ-ACK, and the first duration is configured or predefined by a network side. The first PDSCH may include one or more PDSCH.

Optionally, the first duration is K1.

Optionally, the first duration is a first processing time N1.

Alternatively, the first processing time may be any one or more of:

PDSCH processing time, such as Tproc,1;

PUSCH preparation times, such as Tproc,2;

uplink transmission cancellation time, e.g., tproc,2+d1;

a first multiplexing time, such as Tproc,1+1;

a second multiplexing time, such as Tproc,2+1;

PUCCH preparation time, such as N3.

Optionally, the interval between the time domain position (starting position or ending position) of the first PDSCH and the second time is not greater than a second time duration, where the second time is the first time domain position or the second time domain position or the starting position of the first uplink channel, and the second time duration is configured or predefined by the network side. The first PDSCH may include one or more PDSCH.

If the first PDSCH includes a plurality of PDSCHs, the interval between the time domain position (start position or end position) of any one PDSCH in the first PDSCH and the second time is not greater than the second time period,

Referring to fig. 7, in fig. 7, the first information indicates a second time domain position, the second time domain position is a time domain position t1, and the first PDSCH is a PDSCH whose starting position is located after the second time domain position t1, namely PDSCH5, PDSCH6 and PDSCH7 in fig. 7. The distance between the time domain position (starting position or ending position) of any one PDSCH in the first PDSCH and the first time t2 is greater than or equal to N1, where the first time t2 is the starting position of the first uplink channel (PUCCH 2) for transmitting the first HARQ-ACK, and N1 is the processing time of the PDSCH or PUSCH.

22 The second time domain position is a set of time domain positions, and the first PDSCH is a PDSCH in the set of time domain positions.

Further optionally, the first information indicates a candidate PDSCH time window, the second time domain location is a set of time domain locations in the candidate PDSCH time window, and the first PDSCH is a PDSCH in the candidate PDSCH time window.

The candidate PDSCH time window may be one or more slots (slots), one or more subframes (subframes), or one or more symbols (symbols), etc.

The length of the candidate PDSCH time window may be determined according to a network configuration, such as an RRC configuration, or according to a set of offset values K1 for PDSCH and HARQ-ACK feedback.

Specifically, the first information indicates a candidate PDSCH time window, and the indicated candidate PDSCH time window and the included PDSCH time domain position may be determined by using the receiving position of the first information as a reference point; the indicated candidate PDSCH time window and the included PDSCH time domain position may be determined by using the starting position of the first uplink channel as a reference point.

Optionally, the first information indicates at least one of the following information: a starting time domain position, an ending time domain position of the set of time domain positions, and a length of the set of time domain positions. For example, the first information indicates a start time domain position and an end time domain position of the candidate PDSCH time window.

The first information may also indicate time domain locations of the plurality of PDSCH as the set of time domain locations.

Specifically, the first information indicates time domain positions of the plurality of PDSCH, and may be that the indicated time domain positions of the plurality of PDSCH are determined by using the received position of the first information as a reference point; the time domain positions of the indicated plurality of PDSCH may be determined by using the starting position of the first uplink channel as a reference point.

Referring to fig. 8, in fig. 8, the first information indicates a second time domain position, the second time domain position is a set of time domain positions (PDSCH 3, PDSCH4, PDSCH5, PDSCH6, and PDSCH 7), and the first PDSCH is a PDSCH in the set of time domain positions. The distance between the time domain position of any one PDSCH in the first PDSCH and the first time t2 is greater than or equal to N1, where the first time t2 is the starting position of the first uplink channel (PUCCH 2) for transmitting the first HARQ-ACK, and N1 is the processing time of the PDSCH or PUSCH.

3) In some embodiments, the first information indicates a first packet, the first packet being a packet corresponding to one or more PDSCH of the first PDSCH;

optionally, the first packet includes one or more packets.

Optionally, the packet corresponding to PDSCH is determined by one of the following ways:

configured by RRC message;

Indicated by the scheduled or activated DCI.

Optionally, the packet corresponding to PDSCH is indicated by the DCI display of the scheduling or activation, or implicitly by the format of the DCI of the scheduling or activation or the radio network temporary identity (Radio Network Tempory Identity, RNTI).

4) In some embodiments, the first information indicates a first HARQ process, where the first HARQ process is a HARQ process corresponding to one or more PDSCH in the first PDSCH;

Optionally, the first HARQ process includes one or more HARQ processes.

Optionally, when the first HARQ process includes a plurality of HARQ processes, the first HARQ process includes an identifier of the plurality of HARQ processes, or includes an identifier of a starting HARQ process and an identifier of an ending HARQ process.

In some embodiments of the application 1) above may be combined with 3) and/or 4) i.e. the first information indicates the first packet and/or the first HARQ process in addition to the first time domain position.

At this time, determining the first PDSCH according to the first information includes: and determining the first PDSCH according to the first time domain position and the first packet and/or the first HARQ process.

In some embodiments of the application, 2) above may be combined with 3) and/or 4) in that the first information indicates the first packet and/or the first HARQ process in addition to the second time domain position.

At this time, determining the first PDSCH according to the first information includes: and determining the first PDSCH according to the second time domain position and the first packet and/or the first HARQ process.

In the foregoing embodiments, optionally, the first HARQ-ACK satisfies at least one of:

If the HARQ-ACK of the target PDSCH in the first PDSCH is not transmitted, the first HARQ-ACK includes the HARQ-ACK of the target PDSCH, and further, ACK or NACK may be generated for the target PDSCH;

if the HARQ-ACK of the target PDSCH in the first PDSCH is already transmitted, the first HARQ-ACK does not include the HARQ-ACK of the target PDSCH, or the first HARQ-ACK includes the HARQ-ACK of the target PDSCH, further, an ACK or NACK may be generated for the target PDSCH;

If the time domain position of the target PDSCH in the first PDSCH is a resource which is not available for downlink transmission, the first HARQ-ACK does not contain the HARQ-ACK of the target PDSCH;

If the target PDSCH needs to be transmitted in the first uplink channel, but the first PDSCH does not include the target PDSCH, the first HARQ-ACK does not include the HARQ-ACK of the target PDSCH, or the first HARQ-ACK includes the HARQ-ACK of the target PDSCH, further, an ACK or NACK may be generated for the target PDSCH.

In the above embodiment, if the network side device has indicated the first uplink channel, the terminal transmits the HARQ-ACK on the indicated first uplink channel, and in the embodiment of the present application, if the network side device does not indicate the first uplink channel, the method further includes:

Determining the feedback position of the HARQ-ACK corresponding to the PDSCH according to the offset value K1 between the PDSCH and the HARQ-ACK;

and if the feedback position of the HARQ-ACK corresponding to the PDSCH collides with other resources, transmitting the HARQ-ACK corresponding to the PDSCH through a second uplink channel, wherein the second uplink channel is the uplink channel closest to the PDSCH.

In the embodiment of the application, the transmission of some conflicting HARQ-ACKs is recovered on the uplink resource closest to the PDSCH, so that the phenomenon that a plurality of HARQ-ACKs are transmitted on the uplink resource which is indicated in a concentrated way, so that the uplink load is larger and the uplink performance is influenced is avoided.

Optionally, the second uplink channel is PUCCH or PUSCH.

Referring to fig. 9, an embodiment of the present application further provides a transmission method of HARQ-ACK, which is applied to a network side device, and includes:

Step 91: transmitting second information to the terminal, wherein the second information is used for scheduling, activating or configuring a PDSCH containing the first PDSCH;

Step 92: transmitting first information to a terminal, wherein the first information is used for determining a first PDSCH; the first information indicates a first time domain position or a second time domain position, the first time domain position being a time domain position of the first information, the second time domain position being a time domain position of one or more PDSCH;

Step 93: and receiving a first HARQ-ACK corresponding to at least part of PDSCH in the first PDSCH sent by the terminal in a first uplink channel.

DCI of dynamic scheduling PDSCH;

DCI of non-scheduled PDSCH;

dynamically scheduling DCI of PUSCH;

Group-specific (DCI).

Optionally, the first PDSCH is one or more PDSCH.

Optionally, the first PDSCH is a dynamically scheduled PDSCH or a semi-persistent scheduled PDSCH.

Optionally, the PDSCH of the semi-persistent scheduling is an activated PDSCH of the semi-persistent scheduling or a received PDSCH of the semi-persistent scheduling.

Optionally, the first uplink channel is PUCCH or PUSCH.

Optionally, the first uplink channel is indicated by the network side device through the first information or other indication information.

Optionally, the time domain position of the first information is a starting position or an ending position of a downlink channel carrying the first information, and the downlink channel is a PDCCH or a PDSCH.

Optionally, the second time domain position is a time domain position.

Optionally, the second time domain position is a set of time domain positions, and the first PDSCH is a PDSCH in the set of time domain positions.

Optionally, the first information indicates a candidate PDSCH time window, and the second time domain position is a set of time domain positions in the candidate PDSCH time window.

Optionally, the first information indicates at least one of the following information: a starting time domain position, an ending time domain position of the set of time domain positions, and a length of the set of time domain positions.

Optionally, the first information further indicates at least one of:

A first packet, where the first packet is a packet corresponding to one or more PDSCH in the first PDSCH;

And the first HARQ process is a HARQ process corresponding to one or more PDSCHs in the first PDSCH.

Optionally, the first packet includes one or more packets.

Optionally, the method further comprises:

Transmitting a packet corresponding to the PDSCH to the terminal by one of:

RRC message configuration;

A DCI indication of scheduling or activation.

Optionally, the packet corresponding to the PDSCH is indicated by the scheduled or activated DCI display, or implicitly indicated by the format of the scheduled or activated DCI or the radio network temporary identifier.

Optionally, the first HARQ process includes one or more HARQ processes.

The transmission method of the HARQ-ACK according to the embodiment of the application can also be applied to the unlicensed frequency band, such as the time division multiplexing (Time Division Duplexing, TDD) or frequency division multiplexing (Frequency Division Duplexing, FDD) of the unlicensed frequency band, which is caused by LBT and cannot be transmitted by the HARQ-ACK.

For Semi-persistent scheduling (Semi-PERSISTENT SCHEDULING, SPS), the HARQ-ACK feedback time of each SPS configuration is indicated by respective active downlink control information (Downlink Control Information, DCI) in the existing scheme, so HARQ-ACKs corresponding to SPS physical downlink shared channels (Physical Downlink SHARED CHANNEL, PDSCH) of different SPS configurations may be fed back at different times. If the feedback time of the HARQ-ACK corresponding to one SPS PDSCH collides with other resources, the HARQ-ACK of the SPS PDSCH is discarded, thereby degrading the performance of the SPS PDSCH.

The transmission method of the HARQ-ACK is suitable for the transmission of the HARQ-ACK of the SPS PDSCH, thereby ensuring that the HARQ-ACK is prevented from being discarded due to the conflict between the HARQ-ACK and unavailable resources when the terminal transmits the HARQ-ACK corresponding to the SPS PDSCH, ensuring the transmission of the HARQ-ACK and improving the transmission performance of the SPS PDSCH.

The following description is made with reference to specific embodiments.

Example 1-1

The UE receives first DCI sent by the network side at a time t0, the first DCI indicates a PUCCH or a PUSCH at a time t2, and the UE carries HARQ-ACK corresponding to the first SPS PDSCH and transmits the HARQ-ACK on the PUCCH or the PUSCH at the time t 2.

Wherein the first SPS PDSCH is determined according to one or more of:

Option 1: an SPS PDSCH whose start position or end position is located after time t0, wherein a space between a time domain position (start position or end position) of any one PDSCH in the first SPS PDSCH and time t2 is greater than or equal to K1;

Option 2: an SPS PDSCH with a start position or an end position between time t0 and time t2-N1 (including time t 2-N1), refer to FIG. 4;

option 3: SPS PDSCH indicated in the first DCI;

3a: if the first DCI indicates a time domain position, transmitting the SPS PDSCH of the time domain position and the HARQ-ACK corresponding to at least part of SPS PDSCH in the SPS PDSCH with the starting position or the ending position positioned behind the time domain position on the PUCCH or the PUSCH;

3b: if the first DCI indicates a time-domain position set, HARQ-ACKs corresponding to at least a portion of SPS PDSCH in the time-domain position set are transmitted on the PUCCH or PUSCH.

Wherein N1 is the first processing time.

Alternatively, the first processing time may be any one or more of:

PDSCH processing time, such as Tproc,1;

PUSCH preparation times, such as Tproc,2;

uplink transmission cancellation time, e.g., tproc,2+d1;

a first multiplexing time, such as Tproc,1+1;

a second multiplexing time, such as Tproc,2+1;

PUCCH preparation time, such as N3.

The first SPS PDSCH is an activated SPS PDSCH, or, a received SPS PDSCH;

PUCCH or PUSCH is indicated by the first DCI, and may also be configured by RRC;

The first DCI may be DCI (DL GRANT WITH scheduling PDSCH) for scheduling PDSCH, DCI (DL grant without scheduling PDSCH) not for scheduling PDSCH, or DCI (UL GRANT WITH scheduling PUSCH) for scheduling PUSCH.

Examples 1 to 2

The terminal receives the activation DCI sent by the network side, and the indication K1=2 in the activation DCI; k1 is an offset value between PDSCH and HARQ-ACK feedback;

Referring to fig. 10, if the terminal does not receive the DCI indicating PUCCH2 for transmitting HARQ-ACKs, and HARQ-ACKs of SPS PDSCH 1 to 6 are deferred until PUCCH 1 transmission due to feedback position and DL collision; the HARQ-ACK feedback position of SPS PDSCH 7 is determined to be PUCCH 1 according to k1=2 and is therefore not deferred.

Referring to fig. 11, if the terminal receives DCI at time t0, the DCI indicates PUCCH2 at time t 2; SPS PDSCH 5-7 with the starting position or the ending position between the time t0 and the time t2-N1 (including the time t 2-N1) are transmitted on the PUCCH2;

Since the original HARQ-ACK feedback position of the SPS PDSCH 7 is PUCCH 1 and the DCI is received to indicate PUCCH2, the HARQ-ACK feedback position of the SPS PDSCH 7 is deferred until PUCCH2, so that the load of PUCCH 1 and PUCCH2 is balanced.

Example 2-1

The network side configures or indicates candidate (candidates) PDSCH time windows corresponding to SPS HARQ-ACK PUCCHs.

For a PUCCH that carries SPS HARQ-ACKs for a given time domain position, such as PUCCH 1, the HARQ-ACK contained in this PUCCH 1 is determined by at least one of:

If the HARQ-ACK of one candidate PDSCH is not transmitted, the HARQ-ACK of the candidate PDSCH is contained in the PUCCH 1;

if the HARQ-ACK of one candidate PDSCH is transmitted, the UE does not generate and does not include the HARQ-ACK of the candidate PDSCH in the PUCCH; or the UE generates HARQ-ACK for the candidate PDSCH and includes the HARQ-ACK of the candidate PDSCH in the PUCCH 1.

If the candidate PDSCH is an UL resource or other unavailable resource for downlink transmission, the HARQ-ACK of the candidate PDSCH is not contained in the PUCCH.

If the HARQ-ACK of one SPS PDSCH is transmitted on the PUCCH 1, but the candidate PDSCH time window corresponding to the PUCCH 1 does not contain the SPS PDSCH, the UE does not generate and does not contain the HARQ-ACK of the SPS PDSCH in the PUCCH; or the UE generates HARQ-ACK for the SPS PDSCH and includes the HARQ-ACK of the SPS PDSCH in the PUCCH 1.

Alternatively, the candidate PDSCH time window corresponding to the PUCCH1 may be indicated or updated by DCI.

Optionally, the DCI is SPS activation DCI.

Optionally, the RNTI of the DCI is an RNTI of the SPS.

Alternatively, the DCI may schedule PDSCH or not schedule PDSCH.

Optionally, the PUCCH resource indicated by the DCI is a resource of the PUCCH 1.

Example 2-2

Given by the candidate PDSCH time window, HARQ-ACKs for PDSCH of these slots will be transmitted on the designated PUCCH for the number of slots receiving SPS PDSCH.

For a specific PUCCH, the determination of the HARQ-ACK included in the PUCCH is implemented by:

set j=0-HARQ-ACK information bit index (sequence number of HARQ-ACK information bit)

Set n_s＝0–slot index

while

If a UE is configured to RECEIVE A SPS PDSCH IN slot n _s (if the UE is configured to receive SPS PDSCH at slot n _s)

If UE has reported HARQ-ACK information for THE SPS PDSCH (if the UE has reported HARQ-ACK information for the SPS PDSCH)

Or ACK (acknowledgement)

else

end if

j＝j+1；

end if

n_s＝n_s+1；

end while

It should be noted that, in the transmission method of HARQ-ACK provided in the embodiment of the present application, the execution body may be a transmission device of HARQ-ACK, or a control module for executing the transmission method of HARQ-ACK in the transmission device of HARQ-ACK. In the embodiment of the present application, the transmission device of HARQ-ACK is described by taking the transmission method of HARQ-ACK performed by the transmission device of HARQ-ACK as an example.

Referring to fig. 12, the present application further provides a transmission apparatus 120 for HARQ-ACK, including:

a first receiving module 122, configured to receive second information, where the second information is used to schedule, activate, or configure a PDSCH including the first PDSCH;

a second receiving module 122, configured to receive first information, where the first information indicates a first time domain position or a second time domain position, and the first time domain position is a time domain position of the first information, and the second time domain position is a time domain position of one or more PDSCH;

A determining module 123, configured to determine a first PDSCH according to the first time domain position or the second time domain position;

A sending module 124, configured to send, on a first uplink channel, a first HARQ-ACK corresponding to at least a portion of PDSCH in the first PDSCH.

Optionally, the time domain position of the first information is a start position or an end position of a downlink channel carrying the first information, where the downlink channel is a PDCCH or a PDSCH

Optionally, the first PDSCH includes at least one of:

PDSCH with start or end position located after the first time domain position;

Optionally, the second time domain position is a time domain position, and the first PDSCH includes at least one of the following:

PDSCH with start or end position located after the second time domain position;

PDSCH with start or end position before the second time domain position;

PDSCH located in the second time domain location.

Optionally, the distance between the time domain position of the first PDSCH and the first time is greater than or equal to a first duration, where the first time is a starting position of transmitting the first uplink channel, and the first duration is configured or predefined by the network side. The first PDSCH may include one or more PDSCH.

Optionally, the first information indicates a candidate PDSCH time window, the second time domain position is a set of time domain positions in the candidate PDSCH time window, and the first PDSCH is a PDSCH in the candidate PDSCH time window.

Optionally, the first information further indicates at least one of:

Optionally, the first packet includes one or more packets.

configured by RRC message;

Indicated by the scheduled or activated DCI.

Optionally, the first HARQ process includes one or more HARQ processes.

In the embodiment of the present application, optionally, the first information may be carried by DCI or an RRC message. The DCI may be one of:

DCI of dynamic scheduling PDSCH;

DCI of non-scheduled PDSCH;

dynamically scheduling DCI of PUSCH;

Group-specific (DCI).

Optionally, the first PDSCH is one or more PDSCH.

Optionally, the first uplink channel is PUCCH or PUSCH.

Optionally, the first uplink channel is indicated by the first information or other indication information.

Optionally, the HARQ-ACK codebook corresponding to the first HARQ-ACK is one of the following types:

a semi-static codebook;

A dynamic codebook;

An enhanced dynamic codebook;

Codebook based HARQ-ACK process.

The transmission device of the HARQ-ACK in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The 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.

The transmission device of HARQ-ACK in the embodiment of the present application may be a device with an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, and the embodiment of the present application is not limited specifically.

The HARQ-ACK transmission device provided by the embodiment of the present application can implement each process implemented by the method embodiments of fig. 3 to 8, and achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here.

Referring to fig. 13, the present application further provides a transmission device 130 for HARQ-ACK, including:

A first transmitting module 131, configured to transmit second information to a terminal, where the second information is used to schedule, activate, or configure a PDSCH including the first PDSCH;

a second transmitting module 132, configured to transmit first information to a terminal, where the first information is used to determine a first PDSCH; the first information indicates a first time domain position or a second time domain position, the first time domain position being a time domain position of the first information, the second time domain position being a time domain position of one or more PDSCH;

and a receiving module 133, configured to receive a first HARQ-ACK corresponding to at least a part of PDSCH in the first PDSCH sent by the terminal on the first uplink channel.

DCI of dynamic scheduling PDSCH;

DCI of non-scheduled PDSCH;

dynamically scheduling DCI of PUSCH;

Group-specific (DCI).

Optionally, the first PDSCH is one or more PDSCH.

Optionally, the first uplink channel is PUCCH or PUSCH.

Optionally, the second time domain position is a time domain position.

Optionally, the first information further indicates at least one of:

Optionally, the first packet includes one or more packets.

Optionally, the second transmitting module is further configured to transmit a packet corresponding to the PDSCH to the terminal by one of the following manners:

RRC message configuration;

A DCI indication of scheduling or activation.

Optionally, the first HARQ process includes one or more HARQ processes.

As shown in fig. 14, the embodiment of the present application further provides a communication device 140, including a processor 141, a memory 142, and a program or an instruction stored in the memory 142 and capable of running on the processor 141, for example, when the communication device 140 is a terminal, the program or the instruction is executed by the processor 141 to implement each procedure of the above-mentioned embodiment of the HARQ-ACK transmission method applied to the terminal, and the same technical effects can be achieved. When the communication device 140 is a network side device, the program or the instruction, when executed by the processor 141, implements each process of the above-mentioned embodiment of the HARQ-ACK transmission method applied to the network side device, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here.

Fig. 15 is a schematic hardware structure of a terminal for implementing an embodiment of the present application. The terminal 150 includes, but is not limited to: a radio frequency unit 151, a network module 152, an audio output unit 153, an input unit 154, a sensor 155, a display unit 156, a user input unit 157, an interface unit 158, a memory 159, and a processor 1510.

Those skilled in the art will appreciate that terminal 150 may also include a power source (e.g., a battery) for powering the various components, which may be logically connected to processor 1510 via a power management system so as to perform functions such as managing charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 15 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 154 may include a graphics processor (Graphics Processing Unit, GPU) 1541 and a microphone 1542, the graphics processor 1541 processing image data of still pictures or video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 156 may include a display panel 1561, and the display panel 1561 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 157 includes a touch panel 1571 and other input devices 1572. Touch panel 1571 is also referred to as a touch screen. Touch panel 1571 may include two parts, a touch detection device and a touch controller. Other input devices 1572 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, the radio frequency unit 151 receives downlink data from the network side device and then processes the downlink data with the processor 1510; in addition, the uplink data is sent to the network side equipment. In general, the radio frequency unit 151 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.

The memory 159 may be used to store software programs or instructions and various data. The memory 159 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 159 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.

The processor 1510 may include one or more processing units; alternatively, the processor 1510 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 1510.

The radio frequency unit 151 is configured to receive second information, where the second information is used to schedule, activate, or configure a PDSCH including the first PDSCH;

The radio frequency unit 151 is further configured to receive first information, where the first information indicates a first time domain position or a second time domain position, where the first time domain position is a time domain position of the first information, and the second time domain position is a time domain position of one or more PDSCH;

A processor 1510 configured to determine a first PDSCH based on the first time domain location or the second time domain location;

the radio frequency unit 151 is further configured to send, on a first uplink channel, a first HARQ-ACK corresponding to at least a portion of PDSCH in the first PDSCH.

Optionally, the first PDSCH includes at least one of:

PDSCH with start or end position located after the first time domain position;

PDSCH with start or end position located after the second time domain position;

PDSCH with start or end position before the second time domain position;

PDSCH located in the second time domain location.

If the first PDSCH includes a plurality of PDSCHs, the interval between the time domain position of any one PDSCH in the first PDSCH and the second time is not greater than the second time length,

Optionally, the first information further indicates at least one of:

Optionally, the first packet includes one or more packets.

configured by RRC message;

Indicated by the scheduled or activated DCI.

Optionally, the first HARQ process includes one or more HARQ processes.

Alternatively, the first information may be carried by DCI or an RRC message. The DCI may be one of:

DCI of dynamic scheduling PDSCH;

DCI of non-scheduled PDSCH;

dynamically scheduling DCI of PUSCH;

Group-specific (DCI).

Optionally, the first PDSCH is one or more PDSCH.

Optionally, the first uplink channel is PUCCH or PUSCH.

a semi-static codebook;

A dynamic codebook;

An enhanced dynamic codebook;

Codebook based HARQ-ACK process.

The embodiment of the application also provides network side equipment. As shown in fig. 16, the network device 160 includes: an antenna 161, a radio frequency device 162, a baseband device 163. The antenna 161 is connected to a radio frequency device 162. In the uplink direction, the radio frequency device 162 receives information via the antenna 161, and transmits the received information to the baseband device 163 for processing. In the downstream direction, the baseband device 163 processes the information to be transmitted, and transmits the processed information to the radio frequency device 162, and the radio frequency device 162 processes the received information and transmits the processed information through the antenna 161.

The above-described band processing means may be located in the baseband apparatus 163, and the method performed by the network-side device in the above embodiment may be implemented in the baseband apparatus 163, the baseband apparatus 163 including the processor 164 and the memory 165.

The baseband apparatus 163 may, for example, comprise at least one baseband board on which a plurality of chips are disposed, as shown in fig. 16, where one chip, for example, a processor 164, is connected to the memory 165 to invoke a program in the memory 165 to perform the network device operations shown in the above method embodiment.

The baseband apparatus 163 may also include a network interface 166, such as a common public radio interface (common public radio interface, CPRI for short), for interacting with the radio frequency apparatus 162.

Specifically, the network side device of the embodiment of the present invention further includes: instructions or programs stored in the memory 165 and executable on the processor 164, the processor 164 invokes the instructions or programs in the memory 165 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 present application also provides a readable storage medium, where a program or an instruction is stored, where the program or the instruction implements each process of the above embodiment of the HARQ-ACK transmission method applied to a terminal or a network side device when executed by a processor, and the process can achieve the same technical effect, so that repetition is avoided and no further description is given here.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (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 network side device program or instruction, each process of the embodiment of the transmission method of the HARQ-ACK applied to the terminal or the network side device is realized, the same technical effect can be achieved, and in order to avoid repetition, the description is omitted here.

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.

The embodiment of the present application further provides a program product stored in a nonvolatile storage medium, where the program product is executed by at least one processor to implement each process of the above embodiment of the HARQ-ACK transmission method applied to a terminal or a network side device, and the same technical effects can be achieved, so that repetition is avoided and redundant description is omitted herein.

The embodiment of the present application further provides a program product, where the program product is stored in a nonvolatile storage medium, and the program product is executed by at least one processor to implement each process of the foregoing PDCCH sending method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

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 software product stored in a storage medium (e.g. 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 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 transmission method of hybrid automatic repeat request acknowledgement HARQ-ACK, applied to a terminal, comprising:

receiving second information, wherein the second information is used for scheduling, activating or configuring a PDSCH containing a first physical downlink shared channel PDSCH;

Receiving first information, wherein the first information indicates a first time domain position or a second time domain position, the first time domain position is the time domain position of the first information, and the second time domain position is the time domain position of one or more PDSCH; the first information further indicates a first hybrid automatic repeat request (HARQ) process, wherein the first HARQ process is a HARQ process corresponding to one or more PDSCHs in the first PDSCHs;

Determining the first PDSCH according to the first time domain position or the second time domain position and the first HARQ process;

2. The method of claim 1, wherein the time domain position of the first information is a start position or an end position of a downlink channel carrying the first information, and the downlink channel is a physical downlink control channel PDCCH or a PDSCH.

3. The method of claim 1, wherein the first PDSCH comprises at least one of:

PDSCH with start or end position located after the first time domain position;

4. The method of claim 1, wherein the second time domain location is a time domain location, and the first PDSCH comprises at least one of:

PDSCH with start or end position located after the second time domain position;

PDSCH with start or end position before the second time domain position;

PDSCH located in the second time domain location.

5. The method of claim 1, wherein a distance between a time domain position of the first PDSCH and a first time instant is greater than or equal to a first time period, the first time instant being a starting position for transmitting the first uplink channel, the first time period being configured or predefined by a network side.

6. The method of claim 1, wherein a time domain position of the first PDSCH is spaced apart from a second time instant by no more than a second time duration, the second time instant being the first time domain position or the second time domain position or a starting position of the first uplink channel, the second time duration being configured or predefined by a network side.

7. The method of claim 1, wherein the second time domain location is a set of time domain locations, and the first PDSCH is a PDSCH in the set of time domain locations.

8. The method of claim 7, wherein the first information indicates a candidate PDSCH time window and the second time domain location is a set of time domain locations in the candidate PDSCH time window.

9. The method of claim 7, wherein the first information indicates at least one of: a starting time domain position, an ending time domain position of the set of time domain positions, and a length of the set of time domain positions.

10. The method of claim 1, wherein the first information further indicates:

And the first packet is a packet corresponding to one or more PDSCHs in the first PDSCHs.

11. The method of claim 10, wherein the first packet comprises one or more packets.

12. The method of claim 10, wherein the packet corresponding to the PDSCH is determined by one of:

configured by a radio resource control, RRC, message;

Indicated by the scheduled or activated downlink control information DCI.

13. The method of claim 12, wherein the packet to which the PDSCH corresponds is explicitly indicated by the DCI scheduled or activated, or implicitly indicated by a format of the DCI scheduled or activated or a radio network temporary identity.

14. The method of claim 1, wherein the first HARQ process comprises one or more HARQ processes.

15. The method of claim 14, wherein the first HARQ process comprises a plurality of HARQ processes, comprising an identification of a plurality of HARQ processes, or comprising an identification of a starting HARQ process and an identification of an ending HARQ process.

16. The method of claim 1, wherein the first information is carried by one of:

DCI of dynamic scheduling PDSCH;

DCI of non-scheduled PDSCH;

dynamically scheduling DCI of PUSCH;

a group common DCI;

RRC message.

17. The method of claim 1, wherein the first PDSCH is a dynamically scheduled PDSCH or a semi-persistent scheduled PDSCH.

18. The method of claim 17, wherein the semi-persistent scheduled PDSCH is an activated semi-persistent scheduled PDSCH or a received semi-persistent scheduled PDSCH.

19. The method of claim 1, wherein the first uplink channel is a physical uplink control channel, PUCCH, or a physical uplink shared channel, PUSCH.

20. The method of claim 1, wherein the first uplink channel is indicated by the first information or other indication information.

21. The method of claim 1, wherein the HARQ-ACK codebook corresponding to the first HARQ-ACK is one of the following types:

a semi-static codebook;

A dynamic codebook;

An enhanced dynamic codebook;

Codebook based HARQ-ACK process.

22. The transmission method of HARQ-ACK is applied to network side equipment and is characterized by comprising the following steps:

Transmitting first information to the terminal, wherein the first information is used for determining the first PDSCH; the first information indicates a first time domain position or a second time domain position, the first time domain position being a time domain position of the first information, the second time domain position being a time domain position of one or more PDSCH; the first information further indicates a first HARQ process, wherein the first HARQ process is a HARQ process corresponding to one or more PDSCHs in the first PDSCH;

23. A transmission apparatus for HARQ-ACK, comprising:

The second receiving module is used for receiving the first information; the first information indicates a first time domain position or a second time domain position, the first time domain position being a time domain position of the first information, the second time domain position being a time domain position of one or more PDSCH; the first information further indicates a first HARQ process, wherein the first HARQ process is a HARQ process corresponding to one or more PDSCHs in the first PDSCH;

A determining module, configured to determine the first PDSCH according to the first time domain location or the second time domain location and the first HARQ process;

24. A transmission apparatus for HARQ-ACK, comprising:

The second sending module is used for sending first information to the terminal, wherein the first information is used for determining a first PDSCH; the first information indicates a first time domain position or a second time domain position, the first time domain position being a time domain position of the first information, the second time domain position being a time domain position of one or more PDSCH; the first information further indicates a first HARQ process, wherein the first HARQ process is a HARQ process corresponding to one or more PDSCHs in the first PDSCH;

25. A terminal 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 HARQ-ACK transmission method of any of claims 1 to 21.

26. A network side 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 HARQ-ACK transmission method of claim 22.

27. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the method for transmitting HARQ-ACKs according to any one of claims 1 to 21, or the steps of the method for transmitting HARQ-ACKs according to claim 22.