WO2022078288A1

WO2022078288A1 - Harq-ack transmission method, terminal and network side device

Info

Publication number: WO2022078288A1
Application number: PCT/CN2021/123065
Authority: WO
Inventors: 陈晓航; 潘学明
Original assignee: 维沃移动通信有限公司
Priority date: 2020-10-14
Filing date: 2021-10-11
Publication date: 2022-04-21
Also published as: CN114374486A

Abstract

The present application discloses a HARQ-ACK transmission method, a terminal and a network side device, relating to the technical field of wireless communications. The method comprises: receiving second information for scheduling, activating or configuring a PDSCH which comprises a first PDSCH; receiving first information which indicates a first time domain position or a second time domain position, the first time domain position being a time domain of the first information and the second time domain being a time domain of one or more PDSCHs; determining the first PDSCH according to the first time domain position or the second time domain position; and transmitting in a first uplink channel a first HARQ-ACK corresponding to at least part of the PDSCH in the first PDSCH.

Description

HARQ-ACK transmission method, terminal and network side device

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202011099463.X filed in China on October 14, 2020, the entire contents of which are incorporated herein by reference.

technical field

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

Background technique

For the transmission of the Physical Uplink Control Channel (PUCCH) carrying the Hybrid Automatic Repeat request Acknowledge (HARQ-ACK), it may be related to downlink (DL) resources, unavailable (invalid) resources, flexible (flexible) resources, or physical uplink control channel/physical uplink shared channel (PUCCH/PUSCH) conflicts with different priorities, resulting in HARQ-ACK may be discarded, resulting in performance degradation of downlink transmission.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a HARQ-ACK transmission method, a terminal, and a network-side device, which can solve the problem that when the HARQ-ACK collides with unavailable resources, the HARQ-ACK may be discarded, thereby causing performance degradation of downlink transmission. question.

In a first aspect, a method for transmitting HARQ-ACK is provided, which is applied to a terminal, and the method includes:

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

Receive first information, where 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 one or time domain locations of multiple PDSCHs;

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

The first HARQ-ACK corresponding to at least part of the PDSCHs in the first PDSCH is sent on the first uplink channel.

In a second aspect, a method for transmitting HARQ-ACK is provided, which is applied to a network side device, and the method includes:

sending second information to the terminal, where the second information is used to schedule, activate or configure the PDSCH including the first PDSCH;

Send first information to the terminal, where the first information is used to determine the first PDSCH; the first information indicates a first time domain position or a second time domain position, and the first time domain position is the first time domain position The time domain position of one piece of information, the second time domain position is the time domain position of one or more PDSCHs;

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

In a third aspect, a device for transmitting HARQ-ACK is provided, including:

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

A second receiving module, configured to receive first information; 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 The second time domain position is the time domain position of one or more PDSCHs;

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

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

In a fourth aspect, a device for transmitting HARQ-ACK is provided, including:

a first sending module, configured to send second information to the terminal, where the second information is used to schedule, activate or configure the PDSCH including the first PDSCH;

The second sending module is configured to send first information to the terminal, where the first information is used to determine the first PDSCH; the first information indicates a first time domain position or a second time domain position, the first time domain position The 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 PDSCHs;

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

In a fifth aspect, a terminal is provided, the terminal includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, when the program or instruction is executed by the processor The steps of implementing the method as described in the first aspect.

In a sixth aspect, a network side device is provided, the network side device includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the The processor implements the steps of the method as described in the second aspect when executed.

In a seventh aspect, a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect, or the The steps of the method of the second aspect.

In an eighth aspect, a chip is provided, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a network-side device program or instruction, and implements the method described in the first aspect. the method described, or implement the method described in the second aspect.

In a ninth aspect, a program product is provided, the program product is stored in a non-volatile storage medium, and the program product is executed by at least one processor to implement the method as described in the first aspect, or implement the method as described in the first aspect. The method described in the second aspect.

In the embodiment of the present application, the terminal determines the first PDSCH according to the first information sent by the network side device, and sends the HARQ-ACK corresponding to at least part of the PDSCH in the first PDSCH on the designated uplink channel, thereby ensuring that the terminal transmits In the case of HARQ-ACK, the HARQ-ACK is avoided to be discarded due to the conflict between the HARQ-ACK and the unavailable resource, the transmission of the HARQ-ACK is ensured, and the performance of PDSCH transmission is improved.

Description of drawings

FIG. 1 is a block diagram of a wireless communication system to which an embodiment of the application can be applied;

Fig. 2 is the type of the symbol contained in the time slot;

3 is a schematic flowchart of a method for transmitting HARQ-ACK applied to a terminal according to an embodiment of the present application;

FIG. 4 is an exemplary diagram of a method for transmitting HARQ-ACK according to an embodiment of the present application;

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

FIG. 6 is an exemplary diagram of a method for transmitting HARQ-ACK according to another embodiment of the present application;

FIG. 7 is an exemplary diagram of a method for transmitting HARQ-ACK according to another embodiment of the present application;

FIG. 8 is an exemplary diagram of a method for transmitting HARQ-ACK according to another embodiment of the present application;

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

FIG. 10 is an exemplary diagram of a method for transmitting HARQ-ACK according to another embodiment of the present application;

FIG. 11 is an exemplary diagram of a method for transmitting HARQ-ACK according to another embodiment of the present application;

12 is a schematic diagram of an apparatus for transmitting HARQ-ACK according to an embodiment of the present application;

13 is a schematic diagram of an apparatus for transmitting HARQ-ACK according to another embodiment of the present application;

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

15 is a schematic diagram of a hardware structure of a terminal according to an embodiment of the application;

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

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

The terms "first", "second" and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first", "second" distinguishes Usually it is a class, and the number of objects is not limited. For example, the first object may be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the associated objects are in an "or" relationship.

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

FIG. 1 shows a block diagram of a wireless communication system to which the embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12 . The terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital computer Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: bracelets, headphones, glasses, etc. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 11 . The network side device 12 may be a base station or a core network, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node, Send Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. 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 contents related to this application are introduced.

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

Compared with the previous mobile communication system, the future 5G mobile communication system needs to adapt to more diverse scenarios and business requirements. The main scenarios of NR include Enhanced Mobile Broadband (eMBB), Massive Internet of Things (mMTC), and Ultra-Reliable and Ultra-Low-Latency Communication (URLLC). and other requirements.

These different services have different quality of service (Quality of Service, QoS) requirements. For example, URLLC supports low-latency and high-reliability services. In order to achieve higher reliability, it is necessary to use a lower code rate to transmit data, and at the same time, faster and more accurate channel state information (Channel State Information, CSI) feedback is required. eMBB services support high throughput requirements, but are not as sensitive as URLLC to delay and reliability. In addition, for some UEs that may support services with different numerical configurations, the UE not only supports URLLC low-latency and high-reliability services, but also supports large-capacity and high-speed eMBB services.

For services that appear periodically and have a relatively fixed packet size, in order to reduce the overhead of downlink control signaling, the network can use semi-static scheduling to continuously allocate certain resources for the transmission of periodic services. This method of semi-persistent scheduling in the downlink is called DL SPS (semi-persistent scheduling), which can reduce the overhead of scheduling periodic and small VoLTE voice packets (mainly Physical Downlink Control Channel (PDCCH)) overhead), thereby making more resources available for scheduling additional UEs.

1.2 Unlicensed frequency bands

In future communication systems, the unlicensed band can be used as a supplement to the licensed band to help operators expand their services. To align with NR deployments and maximize NR-based unlicensed access as much as possible, unlicensed bands can operate in the 5GHz, 37GHz and 60GHz bands. The large bandwidth (80 or 100 MHz) of the unlicensed frequency band can reduce the implementation complexity of the base station and the UE. Since unlicensed frequency bands are shared by multiple technologies (RATs), such as WiFi, radar, Licensed-assisted Access (LTE-LAA), etc., in some countries or regions, unlicensed frequency bands must be used in compliance with Regulations to ensure that all devices can use the resource fairly, such as Listen Before Talk (LBT), Maximum Channel Occupancy Time (MCOT) and other rules. When the transmission node needs to send information, it needs to do LBT first, and perform power detection (energy detection, ED) on the surrounding nodes. When the detected power is lower than a threshold, the channel is considered to be empty (idle), and the transmission node can send. On the contrary, the channel is considered to be busy, and the transmission node cannot send. The transmission node can 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 the parameters required by DL SPS for the UE through high-level signaling, such as the period, the number of Hybrid Automatic Repeat request (HARQ) processes, and the resources for HARQ-ACK feedback. After the UE is configured with the DL SPS configuration, the base station activates the configured DL SPS configuration through downlink control information (Downlink Control Information, DCI). The DCI will include the resources of DL SPS transmission and transmission parameters such as modulation and coding scheme (Modulation and coding scheme, MCS). The UE determines the moment of DL SPS transmission and the frequency resource at the corresponding moment by receiving the activated DCI. At each DL SPS moment, the UE will monitor whether there is corresponding data transmission on the DL SPS resource.

If the network wants to release the allocated DL SPS resources, the base station can send the deactivated DCI to release the DL SPS resources.

Additionally, the network may configure the UE with one or more DL SPS configuration resources.

1.4 HARQ-ACK timing (HARQ-ACK timing)

HARQ-ACK timing is defined as the interval from the end of downlink data reception to the time of corresponding ACK/NACK feedback. NR supports flexible HARQ-ACK timing configuration for adapting to different services and network deployments. Each UE can configure a UE-specific HARQ-ACK timing table through Radio Resource Control (RRC), which contains multiple HARQ-ACK timing values, called K1 value, K1 is the time slot Units. When the base station dynamically schedules downlink data transmission, it will indicate a K1 value in the DCI by way of index. .

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

For a DL SPS PDSCH sent at slot n, its corresponding HARQ-ACK is transmitted at slot n+K, where K is indicated in the DCI that activates the DL SPS.

1.5 HARQ-ACK codebook (codebook)

For the HARQ-ACK process supporting transport block level (TB-level) feedback, each transport block (TB) corresponds to feedback one HARQ-ACK bit (bit), supporting multiple DL HARQ processes for each UE, A single DL HARQ process per UE is also supported, the UE needs the ability to indicate its minimum HARQ processing time (minimum HARQ processing time means the minimum time required from Downlink data reception to the corresponding HARQ-ACK transmission timing). Asynchronous and adaptive Downlink HARQ is supported for eMBB and URLLC. From the UE's point of view, the HARQ-ACK feedback of multiple PDSCHs can be transmitted in one UL data/control region in time, and a HARQ-ACK codebook is formed on this UL. The timing between PDSCH reception and 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 the semi-static HARQ-ACK codebook, the UE configures the PDCCH detection opportunity (PDCCH monitoring occasion) according to the RRC, PDSCH time domain resource allocation (PDSCH-TimeDomainResourceAllocation), PDSCH to HARQ-ACK feedback timing (dl-DataToUL-ACK or Parameters such as PDSCH-toHARQ-timing) determine all PDSCHs that may be fed back in a certain time slot to determine the HARQ-ACK codebook. Since it may contain HARQ for actually scheduled and unscheduled PDSCHs, the codebook is generally larger. For the dynamic HARQ-ACK codebook, the UE determines the HARQ-ACK codebook according to the actual scheduled PDSCH. Since only the actual scheduled PDSCH is fed back, the size of the HARQ-ACK codebook is usually smaller than that of the semi-static HARQ-ACK codebook. this size. Which type of codebook the UE uses is determined by the RRC configuration.

1.6 PUCCH resource determination method

In Rel-15, the base station can configure one or more (up to 4) PUCCH resource sets (PUCCH resource sets) for each UE through RRC signaling, and RRC configures or predefines the uplink that each resource set (RESET) can carry. The maximum number of bits of the control information (Uplink Control Information, UCI) payload (for example, the first RESET is up to 2 bits, the second and third RESETs are N1, N2, the fourth RESET is up to 1706 bits, and N1, N2 are RRC configurations) , Each RESET can contain multiple PUCCH resources (up to 32 PUCCH resources in the first RESET, and up to 8 PUCCH resources in each of the other RESETs). On the UE side, the UE needs to feed back the HARQ-ACK after receiving the PDSCH. In order to determine the PUCCH resource where the HARQ-ACK is fed back, the UE needs to first determine the time slot (slot) where the PUCCH is located by scheduling K1 in the PDCCH of the PDSCH, and then pass the PUCCH that needs to be fed back. The number of bits of HARQ-ACK determines the RESET where the PUCCH is located. Within the determined RESET, according to the PRI (PUCCH resource indicator, PUCCH resource indicator) field of the PDCCH (when the number of resources contained in the RESET does not exceed 8) or the PRI+PDCCH first The index (first CCE index) of each control channel element (Control Channel Element, CCE) determines which PUCCH resource in the RESET is specifically (when there are more than 8 resources in the RESET). When HARQ-ACKs of multiple PDSCHs are fed back in one slot, the UE determines the PUCCH resource according to the PRI and CCE index in the last DCI (last DCI) that schedules these PDSCHs.

1.7 Slot format

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

There are three definitions of transmission directions of time slots in NR, downlink (DL), uplink (UL), and flexible. When the network configures a time slot or the symbol is DL or UL, the transmission direction at this moment is clear; when the network configures a time slot or the symbol is flexible, the transmission direction at this moment is to be determined. The network can modify the transmission direction of flexible time slots or symbols through dynamic signaling, such as a dynamic slot format indicator (SFI).

As shown in Figure 2, a slot can contain downlink, uplink and flexible Orthogonal Frequency Division Multiplexing (OFDM) symbols; the Flexible symbols can be rewritten as downlink or Up symbol.

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

SFI can flexibly change the slot format according to requirements to meet service transmission requirements.

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

slot configuration:

The base station can semi-statically configure one or more cell-specific slot formats for the UE through high-layer parameters UL-DL-configuration-common and UL-DL-configuration-common-Set2 (optional).

The base station may also semi-statically configure one or more UE-specific (UE-specific) slot formats for the UE through the high layer parameter UL-DL-configuration-dedicated.

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 directions implicitly indicated by the UE-specific RRC configuration are collectively referred to as measurements, including:

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

The physical random access channel (Physical Random Access Channel, PRACH) resource of the UE-specific RRC configuration, type1 and type2 license-free uplink transmission.

For type 2 license-free uplink transmission, only the transmission on the first activated resource is regarded as UE-specific data.

UE-specific transmission includes PDCSH, PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel), PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel) ACK/NACK feedback, DCI-triggered aperiodic measurement, etc.

1.8 NR R16 PUCCH/PUSCH priority (prioritization)

In NR R16, it is considered that a UE may support different services at the same time, and different services correspond to different service requirements, such as delay, reliability and so on. Therefore, a mechanism for marking the PUCCH/PUSCH channel priority is introduced, and specifically, two levels of physical layer priorities are introduced, that is, high priority and low priority. For example, scheduling request (SR), CG PUSCH (Physical Uplink Shared Channel), SPS PDSCH (Physical Downlink Shared Channel) and their release HARQ-ACK priorities are configured by RRC signaling. For P- CSI or SP-CSI on PUCCH is regarded as low priority. HARQ-ACK for dynamically scheduled PDSCH, DG PUSCH, A-CSI/SP-CSI on PUSCH, etc. are indicated by a 1-bit field in the corresponding scheduling DCI. The priority of the PUCCH is determined by the HARQ-ACK/SR/CSI it carries. When the time domain resources of different channels overlap, if they are of the same priority, they will be processed according to the multiplexing rules defined by NR R15. If they are of different priorities, the UE will discard the low-priority channel and transmit the high-priority channel. If there are both the same priority and different priorities, the UE will first process according to the multiplexing rules defined by NR R15, and then process channels with different priorities. At the same time, when the UE processes different priorities, it discards the low priority channels, and it also takes a certain processing time to transmit the high priority channels. The R16 protocol defines the discard/cancel time requirements when the UE processes different priority channels.

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.

Referring to FIG. 3 , an embodiment of the present application provides a method for transmitting HARQ-ACK, which is applied to a terminal, including:

Step 31: Receive second information, where the second information is used to schedule, activate or configure the PDSCH including the first PDSCH;

The second information may be the downlink authorized DCI, and the PDSCH is dynamically scheduled;

The second information may also be activating DCI, activating semi-persistently scheduled PDSCH;

The second information may also be RRC, which configures semi-persistently scheduled PDSCH.

Step 32: Receive first information, 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, the second time domain position The location is the time domain location of one or more PDSCHs;

Optionally, the time domain position of the PDSCH includes at least one of the following: a start position, an end position of the PDSCH, and a length of the PDSCH.

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

Step 34: Send the first HARQ-ACK corresponding to at least part of the PDSCH in the first PDSCH on the first uplink channel.

In the embodiment of the present application, the terminal determines the first PDSCH according to the first information sent by the network side device, and sends the HARQ-ACK corresponding to at least part of the PDSCH in the first PDSCH on the designated uplink channel, so that the HARQ-ACK and the HARQ-ACK correspond to the PDSCH. When the conflict of unavailable resources may cause HARQ-ACK to be discarded, the transmission of HARQ-ACK is guaranteed, and the performance of PDSCH transmission is improved.

In this 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 multiple. If there is one first PDSCH determined according to the first time domain position or the second time domain position, the first HARQ-ACK corresponding to the first PDSCH may be sent on the first uplink channel. If there are multiple first PDSCHs determined according to the first time domain position or the second time domain position, the first HARQ-ACK corresponding to at least part of the PDSCHs in the first PDSCH is sent on the first uplink channel.

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

Dynamically schedule DCI of PDSCH;

DCI for unscheduled PDSCH;

Dynamically schedule DCI for PUSCH;

Group-specific DCI.

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

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

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

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

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

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

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

Semi-static codebook; that is, Type 1 (Type 1) codebook;

Dynamic codebook; namely Type 2 (Type 2) codebook;

Enhanced dynamic codebook; that is, Enhanced Type 2 codebook;

A codebook based on the HARQ-ACK process; that is, a Type 3 (Type 3) codebook.

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

1) The first information indicates a first time domain position, and the first time domain position is the time domain position of the first information. At this time, the first PDSCH includes at least one of the following:

The PDSCH whose start position or end position is located after the first time domain position;

The start position or the end position is the PDSCH before the first time domain position.

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, 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 moment is greater than or equal to a first duration, and the first moment is the start of the first uplink channel for sending the first HARQ-ACK location, the first duration is configured or predefined by the network side. The first PDSCH may include one or more PDSCHs.

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

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

Wherein, K1 is indicated or configured by the network, and K1 may be a slot, a sub-slot, a 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 the first processing time N1.

Optionally, the first processing time can be any one or more of:

PDSCH processing time, such as Tproc, 1;

PUSCH preparation time, such as Tproc, 2;

Upstream transmission cancellation time, such as Tproc,2+d1;

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

The 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 period is not greater than a second time period, and the second time time is the first time domain position or the second time domain position or the second time domain position. 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 PDSCHs.

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

Optionally, the second duration is a maximum value or a minimum value in a set of time-domain locations configured or predefined by the network side.

Please refer to FIG. 4. In FIG. 4, the first information indicates the first time domain position, and the first time domain position is the time domain position t0 of the first information (in this embodiment, t0 is the first information carrying the first information) The end position of the PDCCH or PDSCH), the first PDSCH is the PDSCH whose start position or end position is located after the first time domain position t0, namely PDSCH5, PDSCH6 and PDSCH7 in FIG. 4 . The distance (T1, T2, and T3) between the time domain position (end position) of any PDSCH in the first PDSCH and the first time t2 is greater than or equal to N1, and the first time t2 is the transmission of the first time t2. The starting position of the first uplink channel (PUCCH2) of a HARQ-ACK, and N1 is the processing time of PDSCH or PUSCH. In this embodiment, optionally, the first information is also used to indicate the PUCCH2 used for transmitting the first HARQ-ACK.

Please refer to FIG. 5. In FIG. 5, the first information indicates the first time domain position, and the first time domain position is the time domain position t0 of the first information (in this embodiment, t0 is the time domain position that carries the first information The end position of the PDCCH or PDSCH), the first PDSCH is the PDSCH whose end position is before the first time domain position t0, namely PDSCH1, PDSCH2, PDSCH3, PDSCH4 and PDSCH5 in FIG. 5 . The interval between the time domain position (start position or end position) of any PDSCH in the first PDSCH and t0 is not greater than T0, and T0 is the maximum value in the set of time domain positions configured on the network side or predefined or minimum value.

Please refer to FIG. 6. In FIG. 6, the first information indicates the first time domain position, and the first time domain position is the time domain position t0 of the first information (in this embodiment, t0 is the time domain position that carries the first information The end position of the PDCCH or PDSCH), the first PDSCH is the PDSCH (PDSCH3, PDSCH4, PDSCH5) whose end position is before the first time domain position t0 and the PDSCH (PDSCH6, PDSCH7) whose end position is after. The distance between the time domain position (start position or end position) of any PDSCH in the first PDSCH and the first time t2 is greater than or equal to N1, and the first time t2 is for sending the first HARQ- The starting position of the first uplink channel (PUCCH2) of the ACK, N1 is the processing time of PDSCH or PUSCH, and the interval between the time domain position of any PDSCH in the first PDSCH and t0 is not greater than T0, and T0 is The maximum or minimum value in a network-side configuration or a predefined set of time-domain locations.

In the above figures, DL means downlink, UL means uplink, and S means that the slot includes DL, Flexible or UL. In the following similar figures, all have the same meaning and will not be repeated.

2) the first information indicates a second time domain position, and the second time domain position is the time domain position of one or more PDSCHs in the first PDSCH;

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

a PDSCH whose start position or end position is located after the second time domain position;

a PDSCH whose start position or end position is located before the second time domain position;

PDSCH at the second time domain location.

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

Optionally, the first duration is K1.

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

Optionally, the first processing time can be any one or more of:

PDSCH processing time, such as Tproc, 1;

PUSCH preparation time, such as Tproc, 2;

Upstream transmission cancellation time, such as Tproc,2+d1;

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

The 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 period, and the second time is the first time domain position or the second time. 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 PDSCHs.

If the first PDSCH includes multiple PDSCHs, the interval between the time domain position (starting position or ending position) of any PDSCH in the first PDSCH and the second time is not greater than the second duration,

Please refer 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 start position located after the second time-domain position t1 , namely PDSCH5, PDSCH6 and PDSCH7 in Figure 7. The distance between the time domain position (start position or end position) of any PDSCH in the first PDSCH and the first time t2 is greater than or equal to N1, and the first time t2 is for sending the first HARQ- The starting position of the first uplink channel (PUCCH2) of the ACK, and N1 is the processing time of PDSCH or PUSCH.

22) The second time-domain location is a time-domain location set, and the first PDSCH is a PDSCH in the time-domain location set.

Further 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 in the candidate PDSCH time window. PDSCH.

The candidate PDSCH time window may be one or more slots, one or more subframes, or, one or more symbols, and so on.

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

Specifically, the first information indicates the candidate PDSCH time window, which may be, taking the receiving position of the first information as a reference point, to determine the indicated candidate PDSCH time window and the included PDSCH time domain position; or, using the first uplink The starting position of the channel is a reference point, and the indicated candidate PDSCH time window and the included PDSCH time domain position are determined.

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

The first information may also indicate time domain locations of multiple PDSCHs as the time domain location set.

Specifically, the first information indicates the time domain positions of the multiple PDSCHs, which may be the time domain positions of the multiple PDSCHs indicated by taking the receiving position of the first information as a reference point; or the first uplink channel The starting position of is a reference point, and the time domain positions of the multiple PDSCHs indicated are determined.

Please refer to FIG. 8. In FIG. 8, the first information indicates the second time domain position, the second time domain position is a set of time domain positions (PDSCH3, PDSCH4, PDSCH5, PDSCH6 and PDSCH7), and the first PDSCH is PDSCH in the time domain location set. The distance between the time domain position of any PDSCH in the first PDSCH and the first time t2 is greater than or equal to N1, and the first time t2 is the first uplink channel (PUCCH2) for sending the first HARQ-ACK. ), and N1 is the processing time of PDSCH or PUSCH.

3) In some embodiments, the first information indicates a first group, and the first group is a group corresponding to one or more PDSCHs in the first PDSCH;

Optionally, the first group includes one or more groups.

Optionally, the grouping corresponding to the PDSCH is determined in one of the following ways:

Configured by RRC message;

Indicated by scheduled or activated DCI.

Optionally, the packet corresponding to the PDSCH is indicated explicitly by the scheduled or activated DCI, or implicitly indicated by the format of the scheduled or activated DCI or the Radio Network Tempory Identity (RNTI).

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

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

Optionally, when the first HARQ process includes multiple HARQ processes, it includes identifiers of multiple HARQ processes, or includes an identifier of a start HARQ process and an identifier of an end HARQ process.

In some embodiments of the present application, the above 1) may be combined with 3) and/or 4), that is, the first information not only indicates the first time domain position, but also indicates the first packet and/or the first HARQ process.

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

In some embodiments of the present application, the above 2) may be combined with 3) and/or 4), that is, the first information not only indicates the second time domain position, but also indicates the first packet and/or the first HARQ process.

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

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

If the HARQ-ACK of the target PDSCH in the first PDSCH is not sent, 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 has been sent, the first HARQ-ACK does not include the HARQ-ACK of the target PDSCH, or the first HARQ-ACK includes the target PDSCH HARQ-ACK of PDSCH, further, ACK or NACK can be generated for the target PDSCH;

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

If the target PDSCH needs to be transmitted on 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 The first HARQ-ACK includes the HARQ-ACK of the target PDSCH, and further, 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. In the embodiment of this application, if the network side device has not indicated the first uplink channel, The method also includes:

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

If the feedback position of the HARQ-ACK corresponding to the PDSCH conflicts with other resources, the HARQ-ACK corresponding to the PDSCH is sent through the second uplink channel, which is the uplink channel closest to the PDSCH.

In the embodiment of the present application, transmission of some conflicting HARQ-ACKs is resumed on the uplink resource closest to the PDSCH, so as to avoid multiple HARQ-ACKs being transmitted on a certain indicated uplink resource, resulting in a large uplink load , which affects the upstream performance.

Optionally, the second uplink channel is PUCCH or PUSCH.

Referring to FIG. 9 , an embodiment of the present application further provides a method for transmitting HARQ-ACK, which is applied to a network side device, including:

Step 91: Send second information to the terminal, where the second information is used to schedule, activate or configure the PDSCH including the first PDSCH;

Step 92: Send first information to the terminal, where the first information is used to determine the first PDSCH; the first information indicates a first time domain position or a second time domain position, and the first time domain position is the the time domain position of the first information, the second time domain position is the time domain position of one or more PDSCHs;

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

Dynamically schedule DCI of PDSCH;

DCI for unscheduled PDSCH;

Dynamically schedule DCI for PUSCH;

Group-specific DCI.

Optionally, the first PDSCH is one or more PDSCHs.

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

Optionally, the semi-persistently scheduled PDSCH is an activated semi-persistently scheduled PDSCH or a received semi-persistently scheduled PDSCH.

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 start position or an end position of a downlink channel carrying the first information, and the downlink channel is PDCCH or PDSCH.

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

Optionally, the second time domain location is a time domain location set, and the first PDSCH is a PDSCH in the time domain location set.

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 start time-domain position, an end time-domain position of the time-domain position set, and a length of the time-domain position set.

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

a first grouping, where the first grouping is a grouping corresponding to one or more PDSCHs in the first PDSCH;

A first HARQ process, where the first HARQ process is a HARQ process corresponding to one or more PDSCHs in the first PDSCH.

Optionally, the first group includes one or more groups.

Optionally, the method further includes:

Send the packet corresponding to the PDSCH to the terminal in one of the following ways:

RRC message configuration;

Scheduled or activated DCI indication.

Optionally, the group corresponding to the PDSCH is explicitly indicated by the scheduled or activated DCI, or implicitly indicated by the format of the scheduled or activated DCI or the wireless network temporary identifier.

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

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

The HARQ-ACK transmission method of the embodiments of the present application can also be applied to unlicensed frequency bands. In scenarios where HARQ-ACK cannot be sent due to LBT, such as time division duplexing (TDD) or frequency division multiplexing of unlicensed frequency bands Use (Frequency Division Duplexing, FDD) scenes.

For Semi-Persistent Scheduling (SPS), in the existing mechanism, the HARQ-ACK feedback time configured by each SPS is indicated by its respective downlink control information (Downlink Control Information, DCI), so different SPS The HARQ-ACK corresponding to the configured SPS Physical Downlink Shared Channel (PDSCH) may be fed back at different times. However, if the HARQ-ACK feedback time corresponding to an SPS PDSCH collides with other resources, the HARQ-ACK of the SPS PDSCH will be discarded, which will cause the performance of the SPS PDSCH to degrade.

The above-mentioned HARQ-ACK transmission method of the present application is suitable for the transmission of HARQ-ACK of SPS PDSCH, so as to ensure that when the terminal transmits HARQ-ACK corresponding to SPS PDSCH, HARQ-ACK can be avoided due to the conflict between HARQ-ACK and unavailable resources. is discarded, which ensures the transmission of HARQ-ACK and improves the performance of SPS PDSCH transmission.

The following description will be given in conjunction with specific embodiments.

Example 1-1

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

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

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

Option 2: SPS PDSCH whose start position or end position is between time t0 and time t2-N1 (including time t2-N1), please refer to Figure 4;

Option 3: SPS PDSCH indicated in the first DCI;

3a: If a time domain position is indicated in the first DCI, the HARQ-ACK corresponding to at least part of the SPS PDSCH in the SPS PDSCH at the time domain position and the start position or end position of the SPS PDSCH after the time domain position, in this time domain position. Transmission on PUCCH or PUSCH;

3b: If a time domain location set is indicated in the first DCI, the HARQ-ACK corresponding to at least part of the SPS PDSCHs in the SPS PDSCH in the time domain location set is transmitted on the PUCCH or PUSCH.

Wherein, N1 is the first processing time.

Optionally, the first processing time can be any one or more of:

PDSCH processing time, such as Tproc, 1;

PUSCH preparation time, such as Tproc, 2;

Upstream transmission cancellation time, such as Tproc,2+d1;

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

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

PUCCH preparation time, such as N3.

The first SPS PDSCH is the activated SPS PDSCH, or the received SPS PDSCH;

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

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

Example 1-2

The terminal receives the activated DCI sent by the network side, and the activated DCI indicates K1=2; K1 is the offset value between PDSCH and HARQ-ACK feedback;

Please refer to Figure 10, if the terminal does not receive the DCI indication PUCCH 2 for transmitting HARQ-ACK, and the HARQ-ACK of SPS PDSCH 1 to 6 are delayed to PUCCH 1 transmission due to their feedback position and DL conflict; SPS PDSCH 7 The HARQ-ACK feedback position of PUCCH 1 is determined according to K1=2, so it is not delayed.

Please refer to Figure 11, if the terminal receives DCI at time t0, the DCI indicates PUCCH2 at time t2; the start position or end position is between time t0 and time t2-N1 (including time t2-N1) SPS PDSCH 5～7 transmitted on PUCCH 2;

The original HARQ-ACK feedback position of SPS PDSCH 7 is PUCCH 1. Since the received DCI indicates PUCCH 2, the HARQ-ACK feedback position of SPS PDSCH 7 is also postponed to PUCCH 2, so that the loads of PUCCH 1 and PUCCH 2 are more balanced .

Example 2-1

The network side configures or indicates the candidate (candidates) PDSCH time window corresponding to the SPS HARQ-ACK PUCCH.

For a PUCCH that is used to carry SPS HARQ-ACK at a given time domain location, such as PUCCH 1, the HARQ-ACK contained in this PUCCH 1 is determined by at least one of the following methods:

If the HARQ-ACK of a candidate PDSCH is not sent, the HARQ-ACK of the candidate PDSCH is included in the PUCCH 1;

If the HARQ-ACK of a candidate PDSCH has been sent, the UE does not generate and does not include the HARQ-ACK of the candidate PDSCH in the PUCCH; or the UE generates a HARQ-ACK for the candidate PDSCH and includes the candidate PDSCH in the PUCCH 1. HARQ-ACK HARQ-ACK.

If the candidate PDSCH is an UL resource or other resources that cannot be used for downlink transmission, the PUCCH does not include the HARQ-ACK of the candidate PDSCH.

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

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

Optionally, the DCI is the SPS activation DCI.

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

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

Optionally, the PUCCH resource indicated by the DCI is the resource of the PUCCH1.

Example 2-2

Given by the candidate PDSCH time window, it is the number of timeslots in which the SPS PDSCH is received, and the HARQ-ACK of the PDSCH of these timeslots will be transmitted on the designated PUCCH.

For a designated PUCCH, the HARQ-ACK included in the PUCCH is determined in the following manner:

Set j=0–HARQ-ACK information bit index (the sequence number of the 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 UE has reported HARQ-ACK information for the SPS PDSCH (if the UE has reported the HARQ-ACK information of the SPS PDSCH)

or ACK

else

end if

j=j+1;

end if

n _s =n _s +1;

end while

It should be noted that, for the HARQ-ACK transmission method provided in the embodiment of the present application, the execution subject may be the HARQ-ACK transmission apparatus, or, in the HARQ-ACK transmission apparatus, the HARQ-ACK transmission method for executing the HARQ-ACK transmission method may be executed. control module. In the embodiments of the present application, a method for transmitting HARQ-ACK performed by a device for transmitting HARQ-ACK is used as an example to describe the device for transmitting HARQ-ACK provided by the embodiments of the present application.

Please refer to FIG. 12 , the present application further provides an apparatus 120 for transmitting HARQ-ACK, including:

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

The second receiving module 122 is 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 the time domain position of the first information, so The second time domain position is the time domain position of one or more PDSCHs;

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

The sending module 124 is configured to send the first HARQ-ACK corresponding to at least part of the PDSCH in the first PDSCH on the first uplink channel.

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

Optionally, the first PDSCH includes at least one of the following:

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

PDSCH at the second time domain location.

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

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 time domain position in the candidate PDSCH time window. PDSCH.

Optionally, the first group includes one or more groups.

Configured by RRC message;

Indicated by scheduled or activated DCI.

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

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

Dynamically schedule DCI of PDSCH;

DCI for unscheduled PDSCH;

Dynamically schedule DCI for PUSCH;

Group-specific DCI.

Optionally, the first PDSCH is one or more PDSCHs.

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:

semi-static codebook;

dynamic codebook;

Enhanced dynamic codebook;

Codebook based on HARQ-ACK process.

The device for transmitting HARQ-ACK in this 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. Exemplarily, the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.

The device for transmitting HARQ-ACK in the embodiment of the present application may be a device having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

The HARQ-ACK transmission apparatus provided in this embodiment of the present application can implement each process implemented by the method embodiments in FIG. 3 to FIG. 8 , and achieve the same technical effect. To avoid repetition, details are not described here.

Please refer to FIG. 13, the present application also provides a HARQ-ACK transmission apparatus 130, including:

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

The second sending module 132 is configured to send first information to the terminal, where the first information is used to determine the first PDSCH; the first information indicates the first time domain position or the second time domain position, the first time domain position The 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 PDSCHs;

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

Dynamically schedule DCI of PDSCH;

DCI for unscheduled PDSCH;

Dynamically schedule DCI for PUSCH;

Group-specific DCI.

Optionally, the first PDSCH is one or more PDSCHs.

Optionally, the first uplink channel is PUCCH or PUSCH.

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

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

Optionally, the first group includes one or more groups.

Optionally, the second sending module is further configured to send a packet corresponding to the PDSCH to the terminal in one of the following ways:

RRC message configuration;

Scheduled or activated DCI indication.

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

As shown in FIG. 14, an embodiment of the present application further provides a communication device 140, including a processor 141, a memory 142, a program or an instruction stored in the memory 142 and executable on the processor 141, for example, the communication When the device 140 is a terminal, when the program or instruction is executed by the processor 141, each process of the above-mentioned embodiment of the HARQ-ACK transmission method applied to the terminal is implemented, and the same technical effect can be achieved. When the communication device 140 is a network-side device, when the program or instruction is executed by the processor 141, each process of the above-mentioned embodiment of the HARQ-ACK transmission method applied to the network-side device can be realized, and the same technical effect can be achieved. In order to avoid Repeat, and will not repeat them here.

FIG. 15 is a schematic diagram of a hardware structure of a terminal 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, a processor 1510 and other components .

Those skilled in the art can understand that the terminal 150 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 1510 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions. The terminal structure shown in FIG. 15 does not constitute a limitation on the terminal, and the terminal may include more or less components than the one shown, or combine some components, or arrange different components, which will not be repeated here.

It should be understood that, in this embodiment of the present application, the input unit 154 may include a graphics processor (Graphics Processing Unit, GPU) 1541 and a microphone 1542. Such as camera) to obtain still pictures or video image data for processing. The display unit 156 may include a display panel 1561, which 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 . The touch panel 1571 is also called a touch screen. The 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, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.

In the embodiment of the present application, the radio frequency unit 151 receives the downlink data from the network side device, and then processes it to the processor 1510; in addition, sends the uplink data to the network side device. Generally, 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.

Memory 159 may be used to store software programs or instructions as well as various data. The memory 159 may mainly include a stored program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like. In addition, the memory 159 may include high-speed random access memory, and may also include non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. For example 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; optionally, the processor 1510 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs or instructions, etc. Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 1510.

Wherein, the radio frequency unit 151 is configured to receive second information, where the second information is used to schedule, activate or configure the 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, the first time domain position is the time domain position of the first information, and the The second time domain position is the time domain position of one or more PDSCHs;

a processor 1510, configured to determine the first PDSCH according to the first time domain position or the second time domain position;

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

Optionally, the first PDSCH includes at least one of the following:

PDSCH at the second time domain location.

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

Optionally, the first group includes one or more groups.

Configured by RRC message;

Indicated by scheduled or activated DCI.

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

Optionally, the first information may be carried by a DCI or RRC message. The DCI can be one of the following:

Dynamically schedule DCI of PDSCH;

DCI for unscheduled PDSCH;

Dynamically schedule DCI for PUSCH;

Group-specific DCI.

Optionally, the first PDSCH is one or more PDSCHs.

Optionally, the first uplink channel is PUCCH or PUSCH.

semi-static codebook;

dynamic codebook;

Enhanced dynamic codebook;

Codebook based on HARQ-ACK process.

The embodiment of the present application also provides a network side device. As shown in FIG. 16 , the network device 160 includes: an antenna 161 , a radio frequency device 162 , and a baseband device 163 . The antenna 161 is connected to the radio frequency device 162. In the uplink direction, the radio frequency device 162 receives information through the antenna 161, and sends the received information to the baseband device 163 for processing. In the downlink direction, the baseband device 163 processes the information to be sent and sends it to the radio frequency device 162 , and the radio frequency device 162 processes the received information and sends it out through the antenna 161 .

The above-mentioned frequency band processing apparatus may be located in the baseband apparatus 163 , and the method performed by the network side device in the above embodiments may be implemented in the baseband apparatus 163 . The baseband apparatus 163 includes a processor 164 and a memory 165 .

The baseband device 163 may include, for example, at least one baseband board on which a plurality of chips are arranged, as shown in FIG. 16 , one of the chips is, for example, the processor 164 , which is connected to the memory 165 to call a program in the memory 165 to execute The network devices shown in the above method embodiments operate.

The baseband device 163 may further include a network interface 166 for exchanging information with the radio frequency device 162, and the interface is, for example, a common public radio interface (CPRI for short).

Specifically, the network-side device in this embodiment of the present invention further includes: instructions or programs that are stored in the memory 165 and run on the processor 164, and the processor 164 calls the instructions or programs in the memory 165 to execute the modules shown in FIG. 9 . The implementation method and achieve the same technical effect, in order to avoid repetition, it is not repeated here.

Embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the above-mentioned transmission of HARQ-ACK applied to a terminal or a network side device is implemented Each process of the method embodiment can achieve the same technical effect, and in order to avoid repetition, it will not be repeated here.

Wherein, the processor is the processor in the terminal described in the foregoing embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a network-side device program or instruction, so as to realize the above-mentioned application to a terminal Or the various processes of the HARQ-ACK transmission method embodiment of the network side device, and can achieve the same technical effect, in order to avoid repetition, it is not repeated here.

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

An embodiment of the present application further provides a program product, the program product is stored in a non-volatile storage medium, and the program product is executed by at least one processor to implement the above-mentioned HARQ-ACK applied to a terminal or a network side device The various processes in the transmission method embodiments of the above-mentioned transmission method can achieve the same technical effect, and are not repeated here to avoid repetition.

An embodiment of the present application further provides a program product, where the program product is stored in a non-volatile storage medium, and the program product is executed by at least one processor to implement each process of the foregoing PDCCH sending method embodiments, and The same technical effect can be achieved, and in order to avoid repetition, details are not repeated here.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes 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 the reverse order depending on the functions involved. To perform functions, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to some examples may be combined in other examples.

From the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform, and of course hardware can also be used, but in many cases the former is better implementation. Based on this understanding, the technical solutions of the present application can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products are stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of this application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.

Claims

A HARQ-ACK transmission method for hybrid automatic repeat request acknowledgment, applied to a terminal, including:

receiving second information, where the second information is used to schedule, activate or configure the PDSCH including the first physical downlink shared channel PDSCH;

Receive first information, where 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 one or time domain locations of multiple PDSCHs;

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

The first HARQ-ACK corresponding to at least part of the PDSCHs in the first PDSCH is sent on the first uplink channel.
The method according to 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 PDSCH) .
The method of claim 1, wherein the first PDSCH comprises at least one of the following:

The PDSCH whose start position or end position is located after the first time domain position;

The start position or the end position is the PDSCH before the first time domain position.
The method of claim 1, wherein the second time domain location is a time domain location, and the first PDSCH includes at least one of the following:

a PDSCH whose start position or end position is located after the second time domain position;

a PDSCH whose start position or end position is located before the second time domain position;

PDSCH at the second time domain location.
The method according to claim 1, wherein the interval between the time domain position of the first PDSCH and a first moment is greater than or equal to a first time period, and the first moment is the start of sending the first uplink channel The first duration is configured or predefined by the network side.
The method according to claim 1, wherein an interval between the time domain position of the first PDSCH and a second time instant is not greater than a second time period, and the second time instant is the first time domain position or the 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 method according to claim 1, wherein the second time-domain location is a time-domain location set, and the first PDSCH is a PDSCH in the time-domain location set.
The method of claim 7, wherein 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.
The method of claim 7, wherein the first information indicates at least one of the following information: a start time domain position, an end time domain position and a length of the time domain position set of the time domain position set.
The method of claim 1, wherein the first information further indicates at least one of the following:

a first grouping, where the first grouping is a grouping corresponding to one or more PDSCHs in the first PDSCH;

A first HARQ process of HARQ, where the first HARQ process is a HARQ process corresponding to one or more PDSCHs in the first PDSCH.
11. The method of claim 10, wherein the first packet comprises one or more packets.
The method according to claim 10, wherein the grouping corresponding to the PDSCH is determined by one of the following ways:

Configured by the radio resource control RRC message;

Indicated by the scheduled or activated downlink control information DCI.
The method according to claim 12, wherein the packet corresponding to the PDSCH is explicitly indicated by a scheduled or activated DCI, or implicitly indicated by a format of the scheduled or activated DCI or a wireless network temporary identifier.
The method of claim 10, wherein the first HARQ process comprises one or more HARQ processes.
The method according to claim 14, wherein when the first HARQ process includes multiple HARQ processes, it includes identifiers of multiple HARQ processes, or includes an identifier of a starting HARQ process and an identifier of an ending HARQ process.
The method of claim 1, wherein the first information is carried by one of the following:

Dynamically schedule DCI of PDSCH;

DCI for unscheduled PDSCH;

Dynamically schedule DCI for PUSCH;

Group public DCI;

RRC message.
The method of claim 1, wherein the first PDSCH is a dynamically scheduled PDSCH or a semi-persistently scheduled PDSCH.
The method of claim 17, wherein the semi-persistently scheduled PDSCH is an activated semi-persistently scheduled PDSCH or a received semi-persistently scheduled PDSCH.
The method according to claim 1, wherein the first uplink channel is a physical uplink control channel PUCCH or a physical uplink shared channel PUSCH.
The method of claim 1, wherein the first uplink channel is indicated by the first information or other indication information.
The method according to claim 1, wherein the HARQ-ACK codebook corresponding to the first HARQ-ACK is one of the following types:

semi-static codebook;

dynamic codebook;

Enhanced dynamic codebook;

Codebook based on HARQ-ACK process.
A method for transmitting HARQ-ACK, applied to network side equipment, including:

sending second information to the terminal, where the second information is used to schedule, activate or configure the PDSCH including the first PDSCH;

Send first information to the terminal, where the first information is used to determine the first PDSCH; the first information indicates a first time domain position or a second time domain position, and the first time domain position is the the time domain position of the first information, the second time domain position is the time domain position of one or more PDSCHs;

Receive a first HARQ-ACK corresponding to at least part of the PDSCHs in the first PDSCH sent by the terminal on the first uplink channel.
A device for transmitting HARQ-ACK, comprising:

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

A second receiving module, configured to receive first information; 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 The second time domain position is the time domain position of one or more PDSCHs;

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

A sending module, configured to send the first HARQ-ACK corresponding to at least part of the PDSCH in the first PDSCH on the first uplink channel.
A device for transmitting HARQ-ACK, comprising:

a first sending module, configured to send second information to the terminal, where the second information is used to schedule, activate or configure the PDSCH including the first PDSCH;

The second sending module is configured to send first information to the terminal, where the first information is used to determine the first PDSCH; the first information indicates the first time domain position or the second time domain position, the first time domain position The 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 PDSCHs;

A receiving module, configured to receive a first HARQ-ACK corresponding to at least part of the PDSCHs in the first PDSCH sent by the terminal on the first uplink channel.
A terminal, comprising a processor, a memory, and a program or instruction stored on the memory and executable on the processor, wherein the program or instruction is executed by the processor to implement the procedures as claimed in claims 1 to 1. 22. The steps of any one of the HARQ-ACK transmission methods.
A network-side device, comprising a processor, a memory, and a program or instruction stored on the memory and running on the processor, wherein the program or instruction is executed by the processor to achieve as claimed in the claims Steps of the HARQ-ACK transmission method described in 23.
A readable storage medium storing programs or instructions on the readable storage medium, wherein, when the programs or instructions are executed by a processor, the HARQ-ACK transmission method according to any one of claims 1 to 22 is implemented , or the steps of implementing the HARQ-ACK transmission method as claimed in claim 23 .
A chip, comprising a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running a program or an instruction to implement the HARQ-ACK according to any one of claims 1 to 22 the transmission method, or the steps of implementing the HARQ-ACK transmission method as claimed in claim 23 .
A program product, wherein the program product is stored in a non-volatile storage medium, the program product is executed by at least one processor to implement the HARQ-ACK according to any one of claims 1 to 22. A transmission method, or a step of implementing the HARQ-ACK transmission method as claimed in claim 23 .