CN111800230A - A method and terminal device for feedback hybrid automatic retransmission request confirmation - Google Patents

Abstract

The embodiment of the invention discloses a method for feeding back hybrid automatic repeat request acknowledgement and terminal equipment, which are used for improving the system effectiveness. The method comprises the following steps: determining a third time granularity for feeding back a third HARQ-ACK 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 the terminal equipment, wherein the third HARQ-ACK is the HARQ-ACK of a physical downlink channel scheduled by Downlink Control Information (DCI) with a specific format; and feeding back the third HARQ-ACK according to the third time granularity.

Description

A method and terminal device for feedback hybrid automatic retransmission request confirmation

technical field

Embodiments of the present invention relate to the field of communications, and in particular, to a method and a terminal device for feeding back an acknowledgement of a hybrid automatic retransmission 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 the Semi-Persistent Scheduling (SPS) PDSCH, the user After receiving and decoding the equipment (UserEquipment, UE), it needs to feed back the decoding result of the PDSCH/SPS PDSCH release PDCCH to the base station, and tell the base station whether the PDCCH released by the PDSCH/SPS PDSCH is successfully decoded. The base station makes the next scheduling decision according to its feedback, and this process is called Hybrid Automatic Repeat reQuest (HARQ).

In New Radio (NR), the time slot (slot) for feeding back HARQ-ACK is determined by the timing indicator K from PDSCH to HARQ indicated in downlink control information (Downlink Control Information, DCI). That is, the UE feeds back the 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 either the Physical Uplink Control Channel (PUCCH) or the Physical Uplink Shared Channel (Physical Uplink Control Channel). UplinkShared CHannel, PUSCH).

Compared with the previous mobile communication systems, the future fifth-generation (5G) mobile communication systems need to adapt to more diverse scenarios and service requirements. In order to adapt to more diverse scenarios and service requirements, it supports the feedback of multiple PUCCHs carrying HARQ-ACK in one time slot, that is, a slot is divided into multiple sub-slots (sub-slots), and the length of each sub-slot can be Radio Resource Control (RRC) configuration.

At present, there is no reasonable way to feed back HARQ-ACK, and when the UE is configured with at least one sub-slot level of HARQ-ACK feedback, when the UE receives a PDSCH/ When the PDCCH is released by the SPS PDSCH, the HARQ-ACK is effectively fed back.

SUMMARY OF THE INVENTION

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

A first aspect provides a method for feeding back a HARQ-ACK acknowledgement, the method comprising: confirming a first time granularity of a HARQ-ACK or feeding back a first HARQ-ACK based on a feedback from the terminal device. The second time granularity of the second HARQ-ACK is determined, and the third time granularity of the feedback third HARQ-ACK is determined, wherein the third HARQ-ACK is the data of the physical downlink channel scheduled by the downlink control information DCI of a specific format. HARQ-ACK; feedback the third HARQ-ACK according to the third time granularity.

In a second aspect, a terminal device is provided, including: a determining module configured to confirm the first time granularity of the HARQ-ACK according to the feedback of the first HARQ-ACK request by the terminal device or the feedback of the second HARQ-ACK The second time granularity is to 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 of a specific format; A module 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 stored on the memory and executable on the processor, when the computer program is executed by the processor The steps of implementing the method for feedback hybrid automatic retransmission request acknowledgment according to the first aspect.

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

In this embodiment of the present invention, by confirming the first time granularity of the HARQ-ACK or feeding back the second time granularity of the second HARQ-ACK according to the feedback of the first HARQ-ACK request from the terminal device, it is determined to feed back the third HARQ-ACK. The third time granularity of the HARQ-ACK, 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; according to the third time granularity, feedback all The third HARQ-ACK can be configured when the UE is configured with at least 1 sub-slot level of HARQ-ACK feedback, when the UE receives the PDSCH/SPS PDSCH scheduled by a specific DCI (eg DCI format 1_0) The PDCCH released by the SPS PDSCH , to effectively feed back HARQ-ACK to improve the effectiveness of the mobile communication system.

Description of drawings

The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The schematic embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the attached image:

FIG. 1 is a schematic flowchart of a method for feeding back an acknowledgement of a hybrid automatic repeat request according to an embodiment of the present invention;

FIG. 2 is a schematic flowchart of a method for feeding back an acknowledgement of a hybrid automatic repeat request according to another embodiment of the present invention;

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

FIG. 4 is a schematic flowchart of a method for feeding back an acknowledgement of a hybrid automatic repeat request according to another embodiment of the present invention;

5 shows a schematic diagram of determining a target time slot for feeding back a third HARQ-ACK provided by an embodiment of the present invention;

6 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a terminal device according to another embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below with reference to the 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, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application. "And/or" in various embodiments of the present specification means at least one of the former and the former.

It should be understood that the technical solutions in the embodiments of the present invention can be applied to various communication systems, such as: a long term evolution (Long Term Evolution, LTE) system, an LTE frequency division duplex (Frequency Division Duplex, FDD) system, an LTE time division duplex ( 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 for the subsequent evolution of the communication system.

In this embodiment of the present invention, the terminal equipment may include, but is not limited to, a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal), a mobile telephone (Mobile Telephone), a user equipment (User Equipment, UE), a mobile phone (handset) and portable equipment (portable equipment), vehicle (vehicle), etc., the terminal equipment can communicate with one or more core networks via a radio access network (Radio Access Network, RAN), for example, the terminal equipment can be a mobile phone (or The terminal device may also be a portable, pocket-sized, hand-held, computer-built-in or vehicle-mounted mobile device.

In the embodiment of the present invention, the network device is a device deployed in a wireless access network to provide a wireless communication function for a terminal device. The network device may be a base station, and the base station may include various forms of macro base station, micro base station, relay station, access point, and the like. In systems with different radio access technologies, the names of devices with base station functions may vary. For example, in an LTE network, it is called an evolved NodeB (Evolved NodeB, eNB or eNodeB), and in a 3rd Generation (3G) network, it is called a Node B (Node B), or in a subsequent evolved communication system. Network equipment, etc., however the use of words does not constitute a limitation.

As shown in FIG. 1 , an embodiment of the present invention provides a method 100 for feedback hybrid automatic repeat request confirmation, the method can be executed by a terminal device, in other words, the method can be executed by software or hardware installed in the terminal device , the method includes the following steps:

S102: Confirm the first time granularity of the HARQ-ACK or the second time granularity of the feedback of the second HARQ-ACK according to the feedback of the first HARQ-ACK request by the terminal device, and determine the third time granularity of the feedback of the third HARQ-ACK time granularity.

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

S104: Feed back the third HARQ-ACK according to the third time granularity.

The third time granularity is a slot or a subslot.

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

As shown in FIG. 2, an embodiment of the present invention provides a method 200 for feedback of HARQ acknowledgement, the method can be executed by a terminal device, in other words, the method can be executed by software or hardware installed in the terminal device , the method includes the following steps:

S202: In the case that both the first time granularity and the second time granularity are at the sub-slot level, determine the first time granularity or the second time granularity as the third time granularity Spend.

The terminal device is preconfigured with a first time granularity for feeding back the first HARQ-ACK and a second time granularity for feeding back the second HARQ-ACK, where both the first time granularity and the second time granularity are at the sub-slot level , 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 at the sub-slot level.

According to different types of DCI indication information, such as scheduling downlink/uplink data transmission, power control command, time slot format indication, resource preemption, etc., it can be divided into different DCI formats. The DCI indicating downlink scheduling in the NR, that is, the DCI used for scheduling PDSCH transmission, is mainly DCI formats 1_0 and 1_1. Compared with the DCI format 1_1, the information bit size of the DCI format 1_0 is smaller, and the size of the information bits in the DCI format 1_1 is smaller. Some bit fields do not exist in DCI format 1_0, but are determined in a predefined manner by RRC. The number of bits of 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 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 determining a target subslot for feeding back the third HARQ-ACK provided by an embodiment of the present invention. As shown in the figures, the UE is configured with a first time granularity for feeding back the first HARQ-ACK as sub-slot1, the second time granularity for feeding back the second HARQ-ACK is sub-slot2.

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

S204: Determine a target time slot or target subslot for feeding back the third HARQ-ACK according to the third time granularity and the timing indication K from PDSCH to HARQ-ACK indicated by the DCI of a specific format.

If sub-slot1 is determined as the third time granularity, k1 represents the PDSCH received at the nth sub-slot 1, and its HARQ-ACK is fed back at the n+k1th sub-slot 1; if sub-slot2 is determined as For the third time granularity, k1 indicates that the PDSCH received at the nth sub-slot 2 feeds back its HARQ-ACK at the n+k1th sub-slot 2.

Wherein, k1 may be indicated by the PDSCH-to-HARQ-feedback-timing-indicator field in the PDCCH of the scheduled PDSCH, for DCI format 1_0 (fallback DCI), for example, k1 may indicate {1, 2, 3, 4, 5, 6,7,8} values. 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 indicates 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.

With reference to Fig. 3a, PDSCH1 is received in the 1st sub-slot 1, k1=3, and its HARQ-ACK is fed back in the 4th sub-slot 1. With reference to Fig. 3b, PDSCH2 is received in the 2nd sub-slot 2, k1=3, and its HARQ-ACK is fed back in the 5th sub-slot 2.

S206: Feed back the third HARQ-ACK through the third PUCCH resource corresponding to the target time slot or the target sub-slot.

With reference to Fig. 3a, the third HARQ-ACK is fed back by using the PUCCH1 resource corresponding to the fourth sub-slot 1. With reference to Fig. 3b, the third HARQ-ACK is fed back by using the PUCCH2 resource corresponding to the fifth sub-slot 2.

In one implementation, the DCI of the specific format is in a specific search space type. In other words, in step S202, when both the first time granularity and the second time granularity are 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 as 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 that of 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 the DCI in a specific format, the UE feeds back the 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 feedback HRQ-ACK. As shown in Figure 3a, in one implementation, both PDCCH1 and PDCCH2 are scheduled by non-specific format DCI, and instruct the UE to feed back according to sub-slot1 or sub-slot2 respectively, PDCCH3 is scheduled by specific format DCI, k1=2, then the UE Feedback HARQ-ACK according to sub-slot1, 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 a HARQ-ACK codebook (codebook) and a PUCCH resource.

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

As shown in FIG. 4 , an embodiment of the present invention provides a method 400 for feedback of hybrid automatic retransmission request acknowledgment, which can be executed by a terminal device, in other words, the method can be executed by software or hardware installed in the terminal device , the method includes the following steps:

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

The third time granularity is slot, and k1 indicates that the PDSCH received at the nth slot feeds back its HARQ-ACK at the n+k1th slot. Wherein, k1 may be indicated by the PDSCH-to-HARQ-feedback-timing-indicator field in the PDCCH of the scheduled PDSCH.

S404: Determine the target time slot for feeding back the third HARQ-ACK according to the third time granularity and the timing indication K from the PDSCH to the HARQ-ACK indicated by the DCI of the specific format.

FIG. 5 shows a schematic diagram of determining the target time slot for feeding back the third HARQ-ACK provided by an embodiment of the present invention. As shown in the figure, in step S402, the UE determines to feed back the 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 the figure, for PDSCH3 received at the ACK.

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

The second slot feeds back the HARQ-ACK, 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 resources corresponding to the DCI of a specific format may overlap with the PUCCH resources corresponding to the first or second HARQ-ACK, and the UE may determine the priorities of different HARQ-ACKs in order to determine its transmission method.

For example, the PUCCH1 and PUCCH3 resources in the figure overlap in the time interval A shown in the figure. Assuming that the priority of the second HARQ-ACK is higher than that of the first HARQ-ACK, then the third HARQ-ACK is located in the third HARQ-ACK. In the case where the time domain resources of the PUCCH and the first PUCCH where the first HARQ-ACK is located overlap, if the multiplexing time requirement is met, the third HARQ-ACK and the first HARQ-ACK are multiplexed on one PUCCH for transmission .

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

Specifically, if it is considered that the priority of the third HARQ-ACK is lower than that of the first HARQ-ACK and does not meet the multiplexing time requirement, 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 the multiplexing time requirement is not met, 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 process is mainly applicable to the case where the UE is configured with dedicated PUCCH resources. In addition, when the UE does not have a dedicated PUCCH resource configuration, the HARQ-ACK of the physical downlink channel scheduled by the downlink control information DCI of a specific format may also be fed back according to the slot level. The specific process is similar to steps S404-406, and will not be repeated.

Thus, the embodiments of the present invention provide a method for feedback of HARQ-ACK acknowledgment, by feeding back the first time granularity of the first HARQ-ACK according to the feedback of the terminal device or the second time granularity of feeding back the second HARQ-ACK Time granularity, determining 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 of a specific format; The third time granularity is to feed back the third HARQ-ACK. In the case where the UE is configured with at least one sub-slot level of HARQ-ACK feedback, when the UE receives a specific DCI (for example, DCI format 1_0) scheduling When the PDSCH/SPS PDSCH releases the PDCCH, the HARQ-ACK is effectively fed back to improve the effectiveness of the mobile communication system.

A method for feeding back an acknowledgement of a hybrid automatic repeat request according to an embodiment of the present invention is described in detail above with reference to FIG. 1 to FIG. 4 . The terminal device according to the embodiment of the present invention will be described in detail below with reference to FIG. 6 .

FIG. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present invention. 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 or the second time granularity of the feedback second HARQ-ACK according to the feedback of the first HARQ-ACK request from the terminal device, and 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 of 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: in the case that both the first time granularity and the second time granularity are 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 one implementation, the DCI of the specific format is in a specific search space type.

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

In an implementation manner, the determining module 610 is configured to: in the case that 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 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 target sub-slot.

In an implementation manner, the feedback module 620 is further configured to: in the case where the third PUCCH where the third HARQ-ACK is located overlaps with the time domain resources of 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 second HARQ-ACK has a higher priority 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 one of the first HARQ-ACK and the third HARQ-ACK with a lower priority.

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

The terminal device 600 according to the embodiment of the present invention may refer to the processes of the methods 100-400 corresponding to the embodiments of the present invention, and each unit/module and the above-mentioned other operations and/or functions in the terminal device 600 are for implementing the methods 100-400, respectively. The corresponding process in 400 can achieve the same or equivalent technical effect, which is not repeated here for brevity.

FIG. 7 is a block diagram of a terminal device according to another embodiment of the present invention. The terminal device 700 shown in FIG. 7 includes: at least one processor 701 , memory 702 , at least one network interface 704 and user interface 703 . The various components in terminal device 700 are coupled together by bus system 705 . It can be understood that the bus system 705 is used to implement the connection 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 clarity of illustration, the various buses are labeled as bus system 705 in FIG. 7 .

The user interface 703 may include a display, a keyboard, a pointing device (eg, a mouse, a trackball), a touch pad or a touch screen, and the like.

It can be understood that the memory 702 in the embodiment of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Wherein, the non-volatile memory may be Read-Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (Erasable PROM, EPROM), Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), 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 memory bus random access memory (DirectRambus RAM, DRRAM). The memory 702 of the systems and methods described in embodiments of the present invention is intended to include, but not be limited to, these and any other suitable types of memory.

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

The operating system 7021 includes 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., for implementing various application services. A program for implementing the method of the embodiment of the present invention may be included in the application program 7022 .

In this embodiment of the present invention, the terminal device 700 further includes: a computer program stored on the memory 702 and executable on the processor 701 , and the computer program is executed by the processor 701 to implement the steps of the following methods 100 - 400 .

The methods disclosed in the above embodiments of the present invention 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, each step of the above-mentioned method can be completed by an integrated logic circuit of hardware in the processor 701 or an instruction in the form of software. The above-mentioned processor 701 may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field Programmable Gate Array (Field Programmable Gate Array, FPGA) or other possible Programming logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps, and logical block diagrams disclosed in the embodiments of the present invention can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present invention may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other computer-readable storage media that are mature in the art. The computer-readable storage medium is located in the memory 702, and the processor 701 reads the information in the memory 702, and completes the steps of the above 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 the foregoing embodiments of the methods 100-400 is implemented.

It can be understood that the embodiments described in the embodiments of the present invention may be implemented by hardware, software, firmware, middleware, microcode or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processing (DSP), Digital Signal Processing Device (DSP Device, DSPD), programmable logic Devices (ProgrammableLogic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described in this application or a combination thereof.

For software implementation, the techniques described in the embodiments of the present invention may be implemented through modules (eg, procedures, functions, etc.) that perform the functions described in the embodiments of the present invention. Software codes may be stored in memory and executed by a processor. The memory can be implemented in the processor or external to the processor.

The terminal device 700 can implement each process implemented by the terminal device in the foregoing embodiments, and can achieve the same or equivalent technical effects. To avoid repetition, details are not described here.

Embodiments of the present invention further provide a computer-readable storage medium, where 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 to 400 can be implemented, and can achieve the same The technical effect, in order to avoid repetition, will not be repeated here. The computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), a magnetic disk, or an optical disk.

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.

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 invention 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 the present invention.

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

Claims (12)

1. A method of feeding back hybrid automatic repeat request acknowledgements, the method being performed by a terminal device, the method comprising:

determining a third time granularity for feeding back a third HARQ-ACK 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 the terminal equipment, wherein the third HARQ-ACK is the HARQ-ACK of a physical downlink channel scheduled by Downlink Control Information (DCI) with a specific format; and

and feeding back the third HARQ-ACK according to the third time granularity.

2. The method of claim 1, wherein determining a third time granularity for feeding back a third HARQ-ACK based on 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 for the terminal device comprises:

determining the first time granularity or the second time granularity as the third time granularity when the first time granularity and the second time granularity are both sub-slot levels.

3. The method of claim 2, wherein the DCI of the particular format is in a particular search space type.

4. The method of claim 1, wherein determining a third time granularity for feeding back a third HARQ-ACK based on 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 for the terminal device comprises:

the third temporal granularity is a slot level where the first and second temporal granularities are both sub-slot levels and the DCI of the particular format is in a common search space type.

5. The method of claim 1, wherein determining a third time granularity for feeding back a third HARQ-ACK based on 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 for the terminal device comprises:

the third time granularity is a time slot level if the first time granularity or the second time granularity is a time slot level.

6. The method of claim 1, wherein feeding back the third HARQ-ACK at the third time granularity comprises:

determining a target time slot or a target sub-time slot for feeding back the third HARQ-ACK according to the third time granularity and a timing indication K from the PDSCH to the HARQ-ACK indicated by the DCI with the specific format; and feeding back the third HARQ-ACK through a third physical uplink control channel PUCCH resource corresponding to the target time slot or the target sub-time slot.

7. The method of claim 1, wherein the method further comprises:

under the condition that the time domain resources of a third PUCCH where the third HARQ-ACK is located and a first PUCCH where the first HARQ-ACK is located are overlapped, if the multiplexing time requirement is met, multiplexing the third HARQ-ACK and the first HARQ-ACK on one PUCCH for transmission; and

wherein the second HARQ-ACK has a higher priority than the first HARQ-ACK.

8. The method of claim 7, wherein the method further comprises:

discarding one of the first HARQ-ACK and the third HARQ-ACK having a lower priority if a multiplexing time requirement is not satisfied.

9. The method of claim 1, wherein the DCI of the particular format is DCI format 1_ 0.

10. A terminal device, comprising:

a determining module, configured to determine a third time granularity for feeding back a third HARQ-ACK according to a first time granularity for feeding back a first HARQ-ACK or a second time granularity for feeding back a second HARQ-ACK of the terminal device, where the third HARQ-ACK is an HARQ-ACK of a physical downlink channel scheduled by DCI of a specific format; and

and the feedback module is used for feeding back the third HARQ-ACK according to the third time granularity.

11. A terminal device, comprising: memory, processor and computer program stored on the memory and executable on the processor, the computer program when executed by the processor implementing the steps of a method of feeding back hybrid automatic repeat request acknowledgements as claimed in any of claims 1 to 9.

12. A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of a method of feeding back hybrid automatic repeat request acknowledgements as claimed in any of the claims 1 to 9.

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