WO2021036950A1

WO2021036950A1 - Method for feeding back hybrid automatic repeat request acknowledgement and terminal device

Info

Publication number: WO2021036950A1
Application number: PCT/CN2020/110599
Authority: WO
Inventors: 李娜; 潘学明; 沈晓冬
Original assignee: 维沃移动通信有限公司
Priority date: 2019-08-23
Filing date: 2020-08-21
Publication date: 2021-03-04
Also published as: CN114142976A; CN111800230B; CN114142976B; CN111800230A

Abstract

Disclosed in the embodiments of the present disclosure are a method for feeding back a hybrid automatic repeat request acknowledgement and a terminal device, which are used for improving the effectiveness of a system. The method comprises: according to a first time granularity for feeding back a first hybrid automatic repeat request acknowledgement (HARQ-ACK) or a second time granularity for feeding back a second HARQ-ACK of a terminal device, determining a third time granularity for feeding back a third HARQ-ACK, the third HARQ-ACK being an HARQ-ACK of a physical downlink channel scheduled by downlink control information (DCI) of a specific format; and feeding back the third HARQ-ACK according to the third time granularity.

Description

Method and terminal equipment for feedback hybrid automatic retransmission request confirmation

Cross-references to related applications

This application claims the priority of Chinese Patent Application No. 201910785968.2 filed in China on August 23, 2019, the entire content of which is incorporated herein by reference.

Technical field

The embodiments of the present disclosure relate to the communication field, and in particular, to a method and terminal device for feeding back confirmation of a hybrid automatic repeat request.

Background technique

After the base station transmits the Physical Downlink Shared Channel (PDSCH)/or the Physical Downlink Control Channel (PDCCH) indicating the release of Semi-Persistent Scheduling (SPS) PDSCH, the user After the User Equipment (UE) receives and decodes it, it needs to feed back to the base station the decoding result of the PDSCH/SPS PDSCH released (release) PDCCH, and tell the base station whether it successfully decodes the PDCCH released by the PDSCH/SPS PDSCH. The base station makes the next scheduling decision based on its feedback. This process is called Hybrid Automatic Repeat reQuest (HARQ).

In New Radio (NR), the time slot (slot) for HARQ-ACK feedback is determined by the PDSCH to HARQ timing indicator K indicated in the Downlink Control Information (DCI). That is, the UE feeds back HARQ-ACK according to the slot level. The Hybrid Automatic Repeat request-acknowledge (HARQ-ACK) information fed back by the UE can be carried on the Physical Uplink Control Channel (PUCCH) or on the physical uplink shared channel (Physical Uplink Shared CHannel, PUSCH).

Compared with the previous mobile communication system, the future fifth-generation (5G) mobile communication system needs to adapt to more diversified scenarios and business requirements. In order to adapt to more diversified scenarios and service requirements, it supports feeding back multiple PUCCHs carrying HARQ-ACK in a slot, that is, dividing a slot into multiple sub-slots (sub-slot), and the length of each sub-slot can be Radio Resource Control (Radio Resource Control, RRC) configuration.

At present, there is no reasonable way to feed back HARQ-ACK. When the UE is configured with at least 1 sub-slot level HARQ-ACK feedback, when the UE receives a specific DCI (for example, DCI format 1_0) scheduled PDSCH/ When the SPS PDSCH releases the PDCCH, it effectively feeds back HARQ-ACK.

Summary of the invention

The purpose of the present disclosure is to provide a method and terminal device for feeding back the confirmation of the hybrid automatic repeat request, so as to improve the effectiveness of the mobile communication system.

In a first aspect, a method for feeding back an acknowledgement of a hybrid automatic repeat request is provided, the method comprising: according to the feedback of the terminal device, the first time granularity of the first hybrid automatic repeat request acknowledgement HARQ-ACK or the first time granularity of the HARQ-ACK is fed back. 2. The second time granularity of HARQ-ACK, determining the third time granularity of feeding back the third HARQ-ACK, where the third HARQ-ACK is the physical downlink channel scheduled by the downlink control information DCI in a specific format HARQ-ACK; according to the third time granularity, feed back the third HARQ-ACK.

In a second aspect, a terminal device is provided, including: a determining module for confirming the first time granularity of HARQ-ACK or feeding back the second HARQ-ACK according to the first hybrid automatic repeat request feedback from the terminal device The second time granularity determines the third time granularity for feeding back the third HARQ-ACK, where the third HARQ-ACK is the HARQ-ACK of the physical downlink channel scheduled by the downlink control information DCI in a specific format; feedback; The module is configured to feed back the third HARQ-ACK according to the third time granularity.

In a third aspect, a terminal device is provided. The terminal device includes a processor, a memory, and a computer program that is stored on the memory and can run on the processor. When the computer program is executed by the processor, The steps of the method for feeding back the confirmation of the hybrid automatic retransmission request as described in the first aspect are implemented.

In a fourth aspect, a computer-readable storage medium is provided, and a computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, a feedback hybrid automatic retransmission as described in the first aspect is implemented. Steps of the method to request confirmation.

In the embodiment of the present disclosure, by confirming the first time granularity of HARQ-ACK or feeding back the second time granularity of the second HARQ-ACK according to the feedback of the first hybrid automatic repeat request from the terminal device, it is determined that the third The third time granularity of HARQ-ACK, where the third HARQ-ACK is the HARQ-ACK of the physical downlink channel scheduled by the downlink control information DCI in a specific format; according to the third time granularity, the feedback The third HARQ-ACK can be configured when the UE is configured with at least 1 sub-slot level HARQ-ACK feedback, when the UE receives a specific DCI (for example, DCI format 1_0) scheduled PDSCH/SPS PDSCH release PDCCH , Effectively feedback HARQ-ACK to improve the effectiveness of the mobile communication system.

Description of the drawings

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The exemplary embodiments and descriptions of the application are used to explain the application, and do not constitute an improper limitation of the application. In the attached picture:

Fig. 1 is a schematic flowchart of an embodiment of a method for feedback hybrid automatic repeat request confirmation according to the first aspect of the present disclosure;

2 is a schematic flowchart of another embodiment of a method for feedback hybrid automatic repeat request confirmation according to the first aspect of the present disclosure;

3a-3b show schematic diagrams of an embodiment of determining a target sub-slot for feeding back the third HARQ-ACK provided by the present disclosure;

4 is a schematic flowchart of still another embodiment of the method for feedback hybrid automatic repeat request confirmation according to the first aspect of the present disclosure;

FIG. 5 shows a schematic diagram of an embodiment of determining a target time slot for feeding back the third HARQ-ACK according to the present disclosure;

Fig. 6 is a schematic structural diagram of an embodiment of a terminal device according to the second aspect of the present disclosure;

Fig. 7 is a schematic structural diagram of another embodiment of a terminal device according to the third aspect of the present disclosure.

detailed description

In order to make the objectives, technical solutions, and advantages of the present application clearer, the technical solutions of the present application will be described clearly and completely in conjunction with specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application. The "and/or" in each embodiment of this specification means at least one of the front and back.

It should be understood that the technical solutions of the embodiments of the present disclosure can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, and LTE Time Division Duplex (LTE) system. Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS) or Worldwide Interoperability for Microwave Access (WiMAX) communication system, 5G system, or New Radio (NR) System, or the subsequent evolution of the communication system.

In the embodiments of the present disclosure, terminal devices may include, but are not limited to, mobile stations (Mobile Station, MS), mobile terminals (Mobile Terminal), mobile phones (Mobile Telephone), User Equipment (UE), and mobile phones (handset) And portable equipment (portable equipment), vehicles (vehicle), etc., the terminal equipment can communicate with one or more core networks through a radio access network (Radio Access Network, RAN), for example, the terminal equipment can be a mobile phone (or It is called a "cellular" phone), a computer with wireless communication function, etc. The terminal device can also be a portable, pocket-sized, handheld, built-in computer or vehicle-mounted mobile device.

In the embodiments of the present disclosure, a network device is a device deployed in a wireless access network to provide wireless communication functions for terminal devices. The network device may be a base station, and the base station may include various forms of macro base stations, micro base stations, relay stations, and access points. In systems using different wireless access technologies, the names of devices with base station functions may be different. For example, in an LTE network, it is called an evolved NodeB (evolved NodeB, eNB, or eNodeB), and in a third generation (3rd Generation, 3G) network, it is called a Node B (Node B), or a subsequent evolutionary communication system. Network equipment, etc., however, the terms used do not constitute a restriction.

1 shows a schematic flow chart of an embodiment of the method for feedback hybrid automatic repeat request confirmation in the first aspect of the present disclosure. The method 100 can be executed by a terminal device. In other words, the method can be implemented by software or hardware installed on the terminal device. To execute, the method includes S102 and S104.

In S102, the third time granularity of feeding back the third HARQ-ACK is determined according to the first time granularity of feeding back the first HARQ-ACK or the second time granularity of feeding back the second HARQ-ACK of the terminal device.

Wherein, the third HARQ-ACK is the HARQ-ACK of the physical downlink channel scheduled by the downlink control information DCI of a specific format.

In S104, feed back the third HARQ-ACK according to the third time granularity.

The third time granularity is a time slot or sub-slot.

In the method 100 for feeding back the confirmation of the hybrid automatic repeat request, by feeding back the first HARQ-ACK first time granularity or feeding back the second HARQ-ACK second time granularity of the terminal device, it is determined to feed back the third The third time granularity of HARQ-ACK, where the third HARQ-ACK is the HARQ-ACK of the physical downlink channel scheduled by the downlink control information DCI in a specific format. Therefore, according to the third time granularity, the third HARQ-ACK is fed back. When the UE is configured with at least 1 sub-slot level HARQ-ACK feedback, when the UE receives a specific DCI (for example, DCI format 1_0) When the scheduled PDSCH/SPS PDSCH releases the PDCCH, the HARQ-ACK is effectively fed back to improve the effectiveness of the mobile communication system.

2 shows a schematic flowchart of another embodiment of the method for feeding back hybrid automatic repeat request confirmation according to the second aspect of the present disclosure. The method 200 can be executed by a terminal device. In other words, the method can be executed by software installed on the terminal device or Executed by hardware, the method 200 includes S202 to S206:

In S202, when the first time granularity and the second time granularity are both at the sub-slot level, the first time granularity or the second time granularity is determined as the third time Graininess.

The terminal device is pre-configured with the first time granularity for feeding back the first HARQ-ACK and the second time granularity for feeding back the second HARQ-ACK. Wherein, the first time granularity and the second time granularity are both sub-slot levels. At this time, the third HARQ-ACK of the HARQ-ACK of the physical downlink channel scheduled by the DCI of the specific format is the sub-slot level.

According to different types of DCI indication information, such as scheduling downlink/uplink data transmission, power control commands, time slot format indication, resource preemption, etc., it can be divided into different DCI formats. NR indicates the DCI for downlink scheduling, that is, the DCI used for scheduling PDSCH transmission, mainly in DCI formats 1_0 and 1_1, and the information bit size of DCI format 1_0 is smaller than that of DCI format 1_1 and DCI format 1_0. Some bit fields in the DCI format 1_1 do not exist in the DCI format 1_0, but are determined in a predefined manner by RRC. The number of bits in the DCI format 1_0 is relatively small, and the same resource is used for transmission, which has a lower code rate and higher reliability than the DCI format 1_1. The DCI of the specific format in this step may be DCI format 1_0.

3a-3b show schematic diagrams of an embodiment of determining the target sub-slot for feeding back the third HARQ-ACK provided by the present disclosure. As shown in FIGS. 3a-3b, the UE is configured with the first time for feeding back the first HARQ-ACK The granularity is sub-slot1 and the second time granularity of the second HARQ-ACK feedback is sub-slot2.

Among them, sub-slot1 is 7 orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols (combined with Figure 3a), a slot is divided into 2 sub-slot1; sub-slot2 is 4/3 Symbol (combined with Figure 3b), a slot is divided into 4 sub-slot2. At this time, sub-slot1 or sub-slot2 can be determined as the third time granularity, which can be specifically configured by RRC.

In S204, according to the third time granularity and the timing indicator K from the PDSCH to the HARQ-ACK indicated by the DCI of the specific format, the target time slot or the target sub-slot for feeding back the third HARQ-ACK is determined.

If sub-slot1 is determined as the third time granularity, k1 represents the PDSCH received in the nth sub-slot 1, and its HARQ-ACK is fed back in the n+k1 sub-slot 1. If sub-slot2 is determined as In the third time granularity, k1 means that the PDSCH received in the n sub-slot 2 feeds back its HARQ-ACK in the n+k1 sub-slot 2.

Among them, k1 can be indicated by the PDSCH-to-HARQ-feedback-timing-indicator field in the PDCCH scheduling PDSCH. For DCI format 1_0 (fallback DCI), for example, k1 can indicate {1,2,3,4,5, 6,7,8}. For other DCI formats such as DCI format 1_1, the value that k1 can indicate is configured by RRC. Receiving the PDSCH in the nth sub-slot 1/2 means that the sub-slot1 or sub-slot2 corresponding to the end position of the PDSCH is the nth sub-slot1 or the nth sub-slot2.

As shown in FIG. 3a, PDSCH1 is received in the first sub-slot 1, k1=3, and its HARQ-ACK is fed back in the fourth sub-slot 1. As shown in Figure 3b, PDSCH2 is received in the second sub-slot 2, and k1=3, and its HARQ-ACK is fed back in the fifth sub-slot 2.

In S206, the third HARQ-ACK is fed back through the third PUCCH resource corresponding to the target time slot or the target sub-slot.

As shown in FIG. 3a, the PUCCH1 resource corresponding to the fourth sub-slot 1 is used to feed back the third HARQ-ACK. As shown in FIG. 3b, the PUCCH2 resource corresponding to the fifth sub-slot 2 is used to feed back the third HARQ-ACK.

In an implementation manner, the DCI of the specific format is in a specific search space type. In other words, in step S202, when the first time granularity and the second time granularity are both at the sub-slot level and the DCI of the specific format is in a specific search space type, the first time granularity is Or the second time granularity is determined to be the third time granularity, and steps S204-S206 are performed.

In an implementation manner, assuming that the priority of the second HARQ-ACK is higher than the first HARQ-ACK, when the third PUCCH where the third HARQ-ACK is located and the first PUCCH where the first HARQ-ACK is located In the case of overlapping domain resources, if the multiplexing time requirement is met, the third HARQ-ACK and the first HARQ-ACK are multiplexed on one PUCCH for transmission.

As shown in Figure 3a, for the PDSCH scheduled by DCI with a specific format, the UE feeds back HARQ-ACK according to the sub-slot1 corresponding to the first HARQ-ACK with low priority, that is, the PDSCH received in the nth sub-slot1, in the nth +k1 sub-slot1 feeds back HRQ-ACK. As shown in Figure 3a, in one implementation, both PDCCH1 and PDCCH2 are scheduled for non-specific format DCI, and the UE is instructed to feed back according to sub-slot1 or sub-slot2 respectively. PDCCH3 is scheduled for specific format DCI, k1=2, then UE According to sub-slot1 to feed back HARQ-ACK, the UE will feed back the HARQ-ACK of PDSCH1 and PDSCH3 in the fourth sub-slot in Figure 3a, and the two HARQ-ACKs correspond to one HARQ-ACK codebook and one PUCCH Resources.

Therefore, the method for feeding back the confirmation of the hybrid automatic repeat request provided by the present disclosure is to confirm the first time granularity of the HARQ-ACK or the feedback of the second HARQ-ACK according to the feedback of the terminal device. The second time granularity determines the third time granularity for feeding back the third HARQ-ACK, where the third HARQ-ACK is the HARQ-ACK of the physical downlink channel scheduled by the downlink control information DCI in a specific format; The third time granularity, the feedback of the third HARQ-ACK, can be when the UE is configured with at least 1 sub-slot level HARQ-ACK feedback, when the UE receives a specific DCI (for example, DCI format 1_0) When the scheduled PDSCH/SPS PDSCH releases the PDCCH, the HARQ-ACK is effectively fed back to improve the effectiveness of the mobile communication system.

4 shows a schematic flowchart of another embodiment of the method for feeding back hybrid automatic repeat request confirmation in the first aspect of the present disclosure. The method 400 may be executed by a terminal device. In other words, the method may be performed by software installed on the terminal device or Executed by hardware, the method 400 includes S402 to S406.

In S402, in the case where the first time granularity and the second time granularity are both at the sub-slot level and the DCI of the specific format is in the common search space type, or when the first time granularity or the total In the case where the second time granularity is a time slot level, the third time granularity is a time slot level.

The third time granularity is slot, then k1 means that the PDSCH received in the nth slot feeds back its HARQ-ACK in the n+k1th slot. Among them, k1 may be indicated by the PDSCH-to-HARQ-feedback-timing-indicator field in the PDCCH for scheduling the PDSCH.

In S404, the target time slot for feeding back the third HARQ-ACK is determined according to the third time granularity and the timing indicator K from the PDSCH to the HARQ-ACK indicated by the DCI of the specific format.

FIG. 5 shows a schematic diagram of an embodiment of determining a target time slot for feeding back the third HARQ-ACK provided by the present disclosure. As shown in FIG. 5, in step S402, the UE determines to feed back HARQ-ACK according to the slot level. In step S404, the UE determines the target time slot for feeding back the third HARQ-ACK. For example, as shown in FIG. 5, the PDSCH3 received in the first slot, k1=1, and the feedback in the n+1th slot, that is, the second slot. HARQ-ACK.

S406: Feed back the third HARQ-ACK through the third PUCCH resource corresponding to the target time slot.

The HARQ-ACK is fed back in the second slot, and the corresponding PUCCH resource is determined from the PUCCH resource configuration of R15, for example, PUCCH3. The third HARQ-ACK is fed back through PUCCH3.

In an implementation manner, at a certain time, the PUCCH resource corresponding to the DCI of a specific format may overlap with the PUCCH resource corresponding to the first or second HARQ-ACK, and the UE can determine the priority of different HARQ-ACKs to determine Its transmission method.

For example, the PUCCH1 and PUCCH3 resources in FIG. 5 overlap in the time interval A shown in FIG. 5. Assuming that the priority of the second HARQ-ACK is higher than that of the first HARQ-ACK, then when the third HARQ-ACK is located When the third PUCCH overlaps with the first PUCCH time domain resource where the first HARQ-ACK is located, if the multiplexing time requirement is met, the third HARQ-ACK and the first HARQ-ACK are multiplexed on one PUCCH上Transfer.

If the multiplexing time requirement is not met, discard the one of the first HARQ-ACK and the third HARQ-ACK with a lower priority.

Specifically, if it is considered that the priority of the third HARQ-ACK is lower than that of the first HARQ-ACK, and the multiplexing time requirement is not met, the third HARQ-ACK is discarded. If it is considered that the priority of the third HARQ-ACK is higher than that of the first HARQ-ACK and does not meet the multiplexing time requirement, then the first HARQ-ACK is discarded. If it is considered that the priority of the third HARQ-ACK is the same as that of the first HARQ-ACK, and the two do not meet the multiplexing time requirement, the system reports an error.

In particular, the above procedure is mainly applicable to the case where the UE is configured with dedicated PUCCH resources. In addition, if the UE does not have a dedicated PUCCH resource configuration, it can also feed back the HARQ-ACK of the physical downlink channel scheduled by the downlink control information DCI in a specific format according to the slot level. The specific process is similar to steps S404-S406, and will not be repeated here.

Therefore, the method for feeding back the confirmation of the hybrid automatic repeat request provided by the present disclosure is achieved by feeding back the first time granularity of the first HARQ-ACK or the second time granularity of the second HARQ-ACK according to the terminal device’s feedback, Determine the third time granularity for feeding back the third HARQ-ACK, where the third HARQ-ACK is the HARQ-ACK of the physical downlink channel scheduled by the downlink control information DCI in a specific format; according to the third time granularity In order to feed back the third HARQ-ACK, when the UE is configured with at least 1 sub-slot level HARQ-ACK feedback, when the UE receives a specific DCI (for example, DCI format 1_0) scheduled PDSCH/SPS PDSCH When the PDCCH is released, HARQ-ACK is effectively fed back to improve the effectiveness of the mobile communication system.

The method for feedback hybrid automatic retransmission request confirmation provided by the present disclosure is described in detail above with reference to FIGS. 1 to 5. The terminal device provided in the second aspect of the present disclosure will be described in detail below with reference to FIG. 6.

Fig. 6 is a schematic structural diagram of an embodiment of a terminal device according to the second aspect of the present disclosure. As shown in FIG. 6, the terminal device 600 includes: a determination module 610 and a feedback module 620.

The determining module 610 is configured to confirm the first time granularity of the HARQ-ACK according to the feedback of the first hybrid automatic repeat request of the terminal device or the second time granularity of the second HARQ-ACK to determine to feed back the third HARQ-ACK The third time granularity of, wherein the third HARQ-ACK is the HARQ-ACK of the physical downlink channel scheduled by the downlink control information DCI in a specific format. The feedback module 620 is configured to feed back the third HARQ-ACK according to the third time granularity.

In an implementation manner, the determining module 610 is configured to: when the first time granularity and the second time granularity are both at the sub-slot level, determine the first time granularity or the second time granularity The temporal granularity is determined as the third temporal granularity.

In an implementation manner, the DCI of the specific format is in a specific search space type.

In an implementation manner, the determining module 610 is configured to: when the first time granularity and the second time granularity are both at the sub-slot level and the DCI of the specific format is in the common search space type, The third time granularity is the time slot level.

In an implementation manner, the determining module 610 is configured to: when the first time granularity or the second time granularity is a time slot level, the third time granularity is a time slot level.

In an implementation manner, the feedback module 620 is configured to: determine to feed back the third HARQ-ACK according to the third time granularity and the timing indication K from the physical downlink shared channel PDSCH to the third HARQ-ACK. The target time slot or target sub-slot of the ACK; the third HARQ-ACK is fed back through the third physical uplink control channel PUCCH resource corresponding to the target time slot or the target sub-slot.

In an implementation manner, the feedback module 620 is further configured to: if the time domain resources of the third PUCCH where the third HARQ-ACK is located overlap with the first PUCCH where the first HARQ-ACK is located, if the multiplexing time requirement is met , The third HARQ-ACK and the first HARQ-ACK are multiplexed on one PUCCH for transmission; wherein the priority of the second HARQ-ACK is higher than the first HARQ-ACK.

In an implementation manner, the feedback module 620 is further configured to: if the multiplexing time requirement is not met, discard the lower priority of the first HARQ-ACK and the third HARQ-ACK.

In an implementation manner, the DCI of the specific format is DCI format 1_0.

The terminal device 600 provided according to the present disclosure can correspondingly implement the procedures of any one of the methods 100-400 provided in the present disclosure, and each unit/module in the terminal device 600 and other operations and/or functions described above can be implemented separately It is configured to implement the corresponding processes in the methods 100-400, and can achieve the same or equivalent technical effects. For the sake of brevity, it will not be repeated here.

The third aspect of the present disclosure also provides a terminal device, including a processor, a memory, and a computer program stored on the memory and running on the processor. When the computer program is executed by the processor, The steps of any one of the embodiments of the above-mentioned methods 100-400 are implemented.

Fig. 7 is a block diagram of another embodiment of a terminal device according to the third aspect of the present disclosure. The terminal device 700 shown in FIG. 7 includes: at least one processor 701, a memory 702, at least one network interface 704, and a user interface 703. The various components in the terminal device 700 are coupled together through the bus system 705. It can be understood that the bus system 705 is used to implement connection and communication between these components. In addition to the data bus, the bus system 705 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clear description, various buses are marked as the bus system 705 in FIG. 7.

Wherein, the user interface 703 may include a display, a keyboard, a pointing device (for example, a mouse, a trackball), a touch panel or a touch screen, etc.

It can be understood that the memory 702 in the embodiment of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (Random Access Memory, RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (Double Data Rate SDRAM, DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), Synchronous Link Dynamic Random Access Memory (Synchlink DRAM, SLDRAM) And Direct Rambus RAM (DRRAM). The memory 702 of the system and method described in the embodiments of the present disclosure is intended to include, but is not limited to, these and any other suitable types of memory.

In some embodiments, the memory 702 stores the following elements, executable modules or data structures, or a subset of them, or an extended set of them: an operating system 7021 and an application 7022.

Among them, the operating system 7021 may include various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks. The application program 7022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., which are used to implement various application services. A program for implementing the method of the embodiments of the present disclosure may be included in the application program 7022.

In the embodiment of the present disclosure, the terminal device 700 further includes: a computer program stored in the memory 702 and capable of running on the processor 701, and when the computer program is executed by the processor 701, any one of the embodiments of the above-mentioned methods 100-400 is implemented. A step of.

The methods disclosed in the foregoing embodiments of the present disclosure may be applied to the processor 701 or implemented by the processor 701. The processor 701 may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method can be completed by an integrated logic circuit of hardware in the processor 701 or instructions in the form of software. The aforementioned processor 701 may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present disclosure can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in combination with the embodiments of the present disclosure may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module may be located in a computer-readable storage medium that is mature in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The computer-readable storage medium is located in the memory 702, and the processor 701 reads information in the memory 702, and completes the steps of the foregoing method in combination with its hardware. Specifically, a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor 701, each step of any one of the above-mentioned methods 100-400 is implemented.

The terminal device 700 can implement the various processes implemented by any of the above-mentioned methods 100-400 or the terminal device 600, and can achieve the same or equivalent technical effects. To avoid repetition, details are not described herein again.

The embodiments of the present disclosure also provide a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, each process of the foregoing method embodiments 100-400 is realized, and the same Technical effects, in order to avoid repetition, I will not repeat them here. Wherein, examples of the computer-readable storage medium include non-transitory computer-readable storage media, such as read-only memory (Read-Only Memory, ROM for short), Random Access Memory (RAM for short), and magnetic CD or CD, etc.

The foregoing describes various aspects of the present disclosure with reference to the flowcharts and/or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present disclosure. It should be understood that each block in the flowcharts and/or block diagrams and combinations of blocks in the flowcharts and/or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device to produce a machine that enables the execution of these instructions via the processor of the computer or other programmable data processing device Implementation of the functions/actions specified in one or more blocks of the flowcharts and/or block diagrams. Such a processor may be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field programmable logic array. Alternatively, each block in the block diagram and/or flowchart, and a combination of blocks in the block diagram and/or flowchart, can be implemented by a dedicated hardware-based system that performs the specified function or action, or can also It is realized by a combination of dedicated hardware and computer instructions.

It should be noted that in this article, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, It also includes other elements not explicitly listed, or elements inherent to the process, method, article, or device. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article, or device that includes the element.

Through the description of the above implementation manners, those skilled in the art can clearly understand that the above-mentioned embodiment method can be implemented by means of software plus the necessary general hardware platform, of course, it can also be implemented by hardware, but in many cases the former is better.的实施方式。 Based on this understanding, the technical solution of the present disclosure essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to make a terminal (which can 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 the present disclosure.

The embodiments of the present disclosure are described above with reference to the accompanying drawings, but the present disclosure is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art are Under the enlightenment of the present disclosure, without departing from the purpose of the present disclosure and the scope of protection of the claims, many forms can be made, all of which fall within the protection of the present disclosure.

Claims

A method for feeding back confirmation of a hybrid automatic retransmission request, the method being executed by a terminal device, and the method including:

Determine the third time granularity of the third HARQ-ACK feedback according to the first time granularity of the first hybrid automatic repeat request acknowledgement HARQ-ACK or the second time granularity of the second HARQ-ACK feedback from the terminal device Degree, wherein the third HARQ-ACK is the HARQ-ACK of the physical downlink channel scheduled by the downlink control information DCI in a specific format; and

Feed back the third HARQ-ACK according to the third time granularity.
The method according to claim 1, wherein the first time granularity of the first hybrid automatic repeat request acknowledgement HARQ-ACK or the second time granularity of the second HARQ-ACK feedback from the terminal device is determined The third time granularity of the third HARQ-ACK feedback, including:

In a case where the first time granularity and the second time granularity are both at the sub-slot level, the first time granularity or the second time granularity is determined as the third time granularity.
The method of claim 2, wherein the DCI of the specific format is in a specific search space type.
The method of claim 1, wherein the determination is made according to the first time granularity of the first hybrid automatic repeat request acknowledgement HARQ-ACK or the second time granularity of the second HARQ-ACK fed back from the terminal device The third time granularity of the third HARQ-ACK feedback, including:

In a case where the first time granularity and the second time granularity are both at the sub-slot level and the DCI of the specific format is in the common search space type, the third time granularity is at the time slot level.
The method of claim 1, wherein the determination is made according to the first time granularity of the first hybrid automatic repeat request acknowledgement HARQ-ACK or the second time granularity of the second HARQ-ACK fed back from the terminal device The third time granularity of the third HARQ-ACK feedback, including:

In a case where the first time granularity or the second time granularity is a time slot level, the third time granularity is a time slot level.
The method of claim 1, wherein feeding back the third HARQ-ACK according to the third time granularity comprises:

Determine the target time slot or target sub-time for feeding back the third HARQ-ACK according to the third time granularity and the timing indicator K from the physical downlink shared channel PDSCH to HARQ-ACK indicated by the DCI of the specific format Gap

Feed back the third HARQ-ACK through the third physical uplink control channel PUCCH resource corresponding to the target time slot or the target sub-slot.
The method of claim 1, further comprising:

In the case that the third PUCCH where the third HARQ-ACK is located overlaps with the first PUCCH where the first HARQ-ACK is located, the third HARQ-ACK is combined with the first PUCCH if the multiplexing time requirement is met. One HARQ-ACK is multiplexed on one PUCCH for transmission; and

Wherein, the priority of the second HARQ-ACK is higher than that of the first HARQ-ACK.
The method of claim 7, further comprising:

If the multiplexing time requirement is not met, discard the one of the first HARQ-ACK and the third HARQ-ACK with a lower priority.
The method of claim 1, wherein the DCI of the specific format is DCI format 1_0.
A terminal device, including:

The determining module is configured to confirm the first time granularity of the HARQ-ACK according to the feedback of the first hybrid automatic repeat request of the terminal device or the second time granularity of the second HARQ-ACK to determine to feed back the third HARQ-ACK The third time granularity of, wherein the third HARQ-ACK is the HARQ-ACK of the physical downlink channel scheduled by the downlink control information DCI in a specific format; and

The feedback module is configured to feed back the third HARQ-ACK according to the third time granularity.
A terminal device, comprising: a memory, a processor, and a computer program stored on the memory and running on the processor, the computer program being executed by the processor is implemented as in claims 1 to 9 Any of the steps of the method for feeding back hybrid automatic retransmission request confirmation.
A computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the feedback hybrid automatic retransmission request according to any one of claims 1 to 9 is realized Confirm the steps of the method.