CN112787769A

CN112787769A - Method, device, equipment and storage medium for determining NFI

Info

Publication number: CN112787769A
Application number: CN201911084325.1A
Authority: CN
Inventors: 曾超君; 李�根; 李娜
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2021-05-11
Anticipated expiration: 2039-11-07
Also published as: CN112787769B

Abstract

The invention discloses a method, a device, equipment and a storage medium for determining NFI. The method comprises the following steps: receiving first Downlink Control Information (DCI) sent by network equipment; determining a new feedback indication NFI according to the first DCI; wherein the NFI indicates by reinterpreting the first indication field in the first DCI; alternatively, NFI is implicitly indicated by the first DCI. The method and the device solve the problem that how to enable the UE to determine the NFI value when the NFI is not explicitly indicated in the DCI so as to ensure that the UE can normally communicate with the corresponding network equipment in the prior art.

Description

Method, device, equipment and storage medium for determining NFI

Technical Field

The present invention belongs to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a storage medium for determining an NFI.

Background

In a communication system, before a terminal device communicates with a network device, the network device and the terminal device need to negotiate configurations such as uploading and operating modes of communication parameters. Here, the network device selects a rule according to some parameters, and generates Downlink Control Information (DCI) to be sent to the terminal device for use.

In a New RAT (NR) of a fifth generation (5G) mobile communication system or an Unlicensed communication system (NR-unauthenticated, NR-U) technology based on the NR technology, if DCI does not indicate or determines a corresponding New Feedback Indicator (NFI), it is impossible to determine a PDSCH range in which each PDSCH packet needs to feed back HARQ-ACK, so that the UE cannot accurately construct and transmit an HARQ-ACK dynamic codebook, resulting in that downlink data transmission cannot be performed normally.

Disclosure of Invention

Embodiments of the present invention provide a method for determining an NFI, a terminal device, a network device, and a computer-readable storage medium, so as to solve a problem in the prior art that when the NFI is not indicated in DCI, a UE and a network device corresponding to the UE may not perform normal communication.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a method for determining an NFI, where the method is applied to a terminal device, and the method may include:

receiving first Downlink Control Information (DCI) sent by network equipment;

determining a new feedback indication NFI according to the first DCI;

wherein the NFI indicates by reinterpreting the first indication field in the first DCI; alternatively, NFI is implicitly indicated by the first DCI.

In a second aspect, an embodiment of the present invention provides a method for determining an NFI, where the method is applied to a network device, and the method may include:

sending first downlink control information DCI to the terminal equipment;

the first DCI is used for indicating the terminal equipment to determine a new feedback indication NFI according to the first DCI; wherein the NFI indicates by reinterpreting the first indication field in the first DCI; alternatively, NFI is implicitly indicated by the first DCI.

In a third aspect, an embodiment of the present invention provides a method for determining an NFI, where the method is applied to a terminal device, and the method may include:

receiving data transmitted by a PDSCH (semi-persistent scheduling) physical downlink shared channel) sent by network equipment;

determining that a new feedback indication NFI corresponding to the SPS PDSCH is the latest NFI in the second DCI;

wherein the PDSCH scheduled by the second DCI and the SPS PDSCH belong to the same PDSCH group.

In a fourth aspect, an embodiment of the present invention provides a method for determining an NFI, where the method is applied to a network device, and the method may include:

sending a semi-persistent scheduling (SPS) Physical Downlink Shared Channel (PDSCH) to a terminal device;

the terminal equipment determines that the NFI is the latest NFI in the second DCI;

In a fifth aspect, the present embodiment provides an apparatus for determining an NFI, where the apparatus is applied to a terminal device, and the apparatus may include:

a transceiver module, configured to receive first downlink control information DCI sent by a network device;

a determining module, configured to determine a new feedback indication NFI according to the first DCI;

In a sixth aspect, an embodiment of the present invention provides an apparatus for determining an NFI, where the apparatus is applied to a network device, and the apparatus may include:

a transceiver module, configured to send first downlink control information DCI to a terminal device;

In a seventh aspect, this embodiment provides an apparatus for determining an NFI, where the apparatus is applied to a terminal device, and the apparatus may include:

the receiving and sending module is used for receiving data transmitted by a PDSCH (semi-persistent scheduling) physical downlink shared channel) sent by network equipment;

a determining module, configured to determine that a new feedback indication NFI corresponding to the SPS PDSCH is the latest NFI in the second DCI;

In an eighth aspect, this embodiment provides an apparatus for determining an NFI, where the apparatus is applied to a network device, and the apparatus may include:

a transceiver module, configured to send a semi-persistent scheduling SPS physical downlink shared channel PDSCH to a terminal device to transmit data to the terminal device, so as to determine that a new feedback indication NFI corresponding to the SPS PDSCH is an NFI in a nearest second DCI;

In a ninth aspect, a method for determining PDSCH packet trigger indication information is provided, where the method is applied to a terminal device, and the method includes:

when HARQ-ACK independent transmission of SPS PDSCH,

feeding back HARQ-ACK corresponding to the SPS PDSCH to the network equipment,

alternatively, the first and second electrodes may be,

and when the network configures the first parameter for the terminal equipment, feeding back a HARQ-ACK bit sequence corresponding to a second PDSCH packet to the network equipment, wherein the second PDSCH packet is a PDSCH packet to which the SPS PDSCH belongs.

In a tenth aspect, a method for determining PDSCH packet trigger indication information is provided, where the method is applied to a network device, and the method includes:

when HARQ-ACK independent transmission of SPS PDSCH,

receiving HARQ-ACK corresponding to SPS PDSCH fed back by the terminal equipment,

alternatively, the first and second electrodes may be,

and when the network configures the first parameter for the terminal equipment, receiving a HARQ-ACK bit sequence corresponding to a second PDSCH packet fed back by the terminal equipment, wherein the second PDSCH packet is a PDSCH packet to which the SPS PDSCH belongs.

In an eleventh aspect, an apparatus for determining PDSCH packet triggering indication information is provided, where the apparatus is applied to a terminal device, and the apparatus includes:

the first transceiver module is used for feeding back HARQ-ACK corresponding to the SPS PDSCH to the network equipment when the HARQ-ACK of the SPS PDSCH is independently transmitted;

alternatively, the first and second electrodes may be,

and the second transceiver module is used for feeding back a HARQ-ACK bit sequence corresponding to a second PDSCH packet to the network equipment when the network configures the first parameter for the terminal equipment, wherein the second PDSCH packet is a PDSCH packet to which the SPS PDSCH belongs.

In a twelfth aspect, an apparatus for determining PDSCH packet triggering indication information is provided, where the apparatus is applied to a network device, and the apparatus is characterized in that the apparatus includes:

the first transceiving module is used for receiving HARQ-ACK corresponding to the SPS PDSCH fed back by the terminal equipment when the HARQ-ACK of the SPS PDSCH is independently transmitted;

alternatively, the first and second electrodes may be,

and the second transceiver module is used for receiving a HARQ-ACK bit sequence corresponding to a second PDSCH packet fed back by the terminal equipment when the network configures the first parameter for the terminal equipment, wherein the second PDSCH packet is a PDSCH packet to which the SPS PDSCH belongs.

In a thirteenth aspect, a terminal device is provided, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method for determining NFI as shown in the first, third or ninth aspect when executing the computer program.

In a fourteenth aspect, a network device is provided, which includes: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method for determining NFI as shown in the second, fourth or tenth aspect when executing the computer program.

In a fifteenth aspect, a computer readable storage medium is provided, on which a computer program is stored, which when executed by a processor implements the steps in the method for determining NFI shown in the first, second, third, fourth, ninth or tenth aspect.

In the embodiment of the present invention, a new feedback indication NFI is determined according to a first downlink control information DCI sent by a receiving network device, where the NFI may re-interpret a first indication field indication in the first DCI; alternatively, the indication is implicit by the first DCI. Compared with the prior art, the NFI of the embodiment of the present invention may re-interpret the indication of the first indication field in the first DCI, or may implicitly indicate the first DCI, so that the first DCI may not introduce a new indication field for the enhanced dynamic codebook to change the DCI size, the DCI indication overhead may be saved, and the principle that NR does not have a field for a configurable function in a fallback DCI format is met, and the UE may determine the NFI value, so as to ensure that the UE can accurately feed back the HARQ-ACK dynamic codebook to its corresponding network device, thereby ensuring normal downlink data transmission.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of an architecture for determining NFI according to an embodiment of the present invention;

fig. 2 is a flowchart of a method for determining an NFI based on a terminal device according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a redundancy version selection scheme according to an embodiment of the present invention;

fig. 4 is a schematic diagram of another redundancy version selection scheme provided in an embodiment of the present invention;

fig. 5 is a schematic diagram illustrating an example of continuing NFI and PDSCH grouping trigger indication information according to an embodiment of the present invention;

fig. 6 is a flowchart of a method for determining an NFI based on a network device according to an embodiment of the present invention;

fig. 7 is an interaction flowchart of a method for determining an NFI according to an embodiment of the present invention;

fig. 8 is a schematic block diagram of an apparatus for determining an NFI based on a terminal device according to an embodiment of the present invention;

fig. 9 is a schematic block diagram of an apparatus for determining an NFI based on a network device according to an embodiment of the present invention;

fig. 10 is a schematic diagram of a hardware structure of a terminal device according to an embodiment of the present invention;

fig. 11 is a schematic diagram of a hardware structure of a network device according to an embodiment of the present invention.

Detailed Description

Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.

To solve the problems in the related art, embodiments of the present invention provide a method, an apparatus, a terminal device, and a storage medium for determining an NFI.

The method for determining the NFI provided by the embodiment of the present invention can be applied to at least the following architectures, and the following description is provided:

the architecture mainly includes a network device 10 and a terminal device 20.

Wherein, the network device 10 generates a first downlink control information DCI (i.e., a first DCI); then, issuing a first DCI to terminal device 20, where the first DCI may indicate a new feedback indication NFI, e.g., by reinterpreting a first indication field indication NFI in the first DCI; alternatively, NFI is implicitly indicated by the first DCI. Next, terminal device 20 receives the first DCI, and determines the NFI according to the first DCI.

It should be noted here that when the NFI is indicated by multiplexing the first indication field in the first DCI, the first indication field may also be used to indicate other information different from the NFI.

Thus, the terminal device determines a new feedback indication NFI according to the first downlink control information DCI sent by the receiving network device, where the NFI may re-interpret the first indication field indication in the first DCI; alternatively, the indication is implicit by the first DCI. Compared with the prior art, the NFI of the embodiment of the present invention may re-interpret the indication of the first indication field in the first DCI, so as to ensure that the first DCI does not introduce a new indication field for the enhanced dynamic codebook and change the size of the DCI; in addition, the NFI in the embodiment of the present invention may also be implicitly indicated by the first DCI, so that when the NFI is not indicated in the DCI, the UE and the corresponding network device may not perform normal communication.

It should be noted that the method provided by the embodiment of the present invention may be applied to a scene of NR-U dynamic codebook enhancement.

Based on the above architecture and application scenario, the method for determining NFI provided in the embodiment of the present invention is described in detail below.

Fig. 2 is a flowchart of a method for determining an NFI based on a terminal device according to an embodiment of the present invention.

As shown in fig. 2, the method may specifically include steps 210 to 220, which are specifically as follows:

step 210, receiving a first downlink control information DCI sent by a network device.

Wherein the first DCI corresponds to the new feedback indication NFI. Here, it should be noted that the first DCI in the embodiment of the present invention may refer to a fallback downlink control information fallback DCI format, or a DCI format 1_ 0.

Step 220, determining a new feedback indication NFI according to the first DCI.

Here, in order to determine the NFI corresponding to the first DCI without adding an indication field to the first DCI, the following steps are specifically performed:

the first method is as follows: the NFI is indicated by multiplexing the indication fields of other information in the first DCI, the other information being information other than the NFI, i.e. the NFI is indicated by reinterpreting the first indication field in the first DCI.

The second method comprises the following steps: the NFI is implicitly indicated by the first DCI, for example, the NFI is implicitly indicated by other information in the first DCI or by other information related to the first DCI.

The above two modes are explained separately:

first, referring to the first mode, NFI may be indicated by N indication bits of the first indication field; wherein N is an integer greater than or equal to 1. For example: the indication using 1 or more indication bits in the first indication field can be determined according to actual conditions.

Here, the first indication field in the embodiment of the present invention may include a frequency domain resource allocation indication field or a redundancy version indication field.

Further, when the first indication field is a redundancy version indication field, the redundancy version indication field comprises a first indication bit and a second indication bit; wherein the first indication bit is used for indicating NFI, and the second indication bit is used for indicating a first redundancy version in a preset redundancy version candidate set.

For example: if a certain bit, for example, the first bit or the second bit, in the 2-bit redundancy version indication field specified in NR Rel-15 is extracted by the protocol convention or the higher layer configuration, the remaining single bit may be used to select a single redundancy version from the two alternative redundancy versions, and the correspondence between the value of the NR Rel-152-bit redundancy version indication field and the redundancy version ID as shown in fig. 3 may be adjusted to the content shown in fig. 4.

Or, when the first indication field is the frequency domain resource allocation indication field, the highest indicator bit in the frequency domain resource allocation indication field is used for indicating the NFI. The most significant bit in this case may also be understood as the first bit in the frequency domain resource allocation indicator field.

Therefore, through the first mode, when the enhanced dynamic codebook is configured for the terminal equipment, the bit number of the first DCI is not changed relative to that when the enhanced dynamic codebook is not configured, and extra signaling overhead is not brought; alignment of the number of bits for the first DCI does not cause any additional impact.

Secondly, with respect to the second approach, NFI is implicitly indicated by the first DCI.

In this embodiment of the present invention, the NFI may be implicitly indicated by the first DCI, where the NFI is determined by an NFI in a nearest second DCI, and a Physical Downlink Shared Channel (PDSCH) scheduled by the second DCI and a PDSCH scheduled by the first DCI belong to the same PDSCH group. It should be noted that, in the embodiments of the present invention, the second DCI refers to a Non-fallback downlink control information Non-fallback DCI format; alternatively, DCI format 1_ 1.

Here, when this manner is adopted, the following possibility may occur:

in an embodiment, the default value may not be considered in general, and each first DCI may always find the corresponding latest second DCI, but the situation that the first DCI is not found may also occur, that is, when there is no latest second DCI, the NFI corresponding to the first DCI is determined to be the preset NFI.

For example: and initially scheduling a PDSCH packet by adopting Non-fallback DCI to ensure the integrity of the operation of the enhanced dynamic codebook. However, when there is no recent Non-Fallback DCI, the NFI of the Fallback DCI may adopt a default value (e.g. 0), and assume that no inversion is performed.

In another example, when determining the latest second DCI corresponding to the first DCI, the latest second DCI here may be: the starting time of the PDSCH detection opportunity corresponding to the second DCI is not later than the second DCI corresponding to the starting time of the PDSCH detection opportunity corresponding to the first DCI;

and/or the index of the serving cell in which the PDSCH transmission and/or Semi-Persistent Scheduling (SPS) PDSCH release indication corresponding to the second DCI is not larger than the serving cell index corresponding to the first DCI.

For example: recently, the Non-Fallback DCI means that the starting time of the PDCCH detection opportunity corresponding to the Non-Fallback DCI is not later than the PDCCH detection opportunity corresponding to the Fallback DCI.

And/or the starting time of the PDCCH detection opportunities corresponding to the two DCIs is equal, and the index of the serving cell where the PDSCH transmission and/or SPSPDSCH release indication corresponding to the Non-Fallback DCI is located is not greater than the index of the serving cell where the PDSCH transmission and/or SPSPDSCH release indication corresponding to the Fallback DCI is located.

In yet another example, the first DCI and the second DCI point to the same or different time slots through a Hybrid automatic repeat request acknowledgement (HARQ-ACK) Timing indication field. Or the first DCI and the second DCI point to the same HARQ-ACK dynamic codebook transmission or different HARQ-ACK dynamic codebook transmissions through the HARQ-ACK Timing indication domain.

For example: the latest Non-Fallback DCI does not require that the feedback DCI and the Fallback DCI point to the PUCCH or codebook transmission in the same time slot through the HARQ-ACK Timing indication field (i.e. the "PDSCH-to-HARQ _ feedback Timing indicator" indication field in the DCI format 1_0/1_ 1), that is, it can be understood that the current DCI and the Fallback DCI may point to the same time slot or different time slots.

When the pointed time slots are different, assuming that the transmission of the PUCCH or codebook related to the PDSCH packet 0 in the PUCCH time slot m indicated by a certain Non-Fallback DCI x fails, the PUCCH or codebook transmission indicated by a certain Fallback DCI y in the PUCCH time slot n (after the time slot m, i.e., the time slot n is later than the time slot m) may carry HARQ-ACKs of all pending transmissions (including retransmissions) of the PDSCH packet 0, at this time, if there is no other Non-Fallback DCI between the Non-Fallback DCI x and the Fallback DCI y, the Non-Fallback x is the nearest Non-Fallback DCI of the Fallback DCI y, and the NFI corresponding to the Fallback y follows the NFI indicated in the Non-Fallback x.

Therefore, the NFI in the embodiment of the present invention may also determine, through the first DCI implicit indication, the NFI to construct a Hybrid automatic repeat request acknowledgement (HARQ-ACK Codebook) of the DCI, and finally, ensure that the terminal device can perform normal communication with the corresponding network device.

In addition, the method for determining the NFI provided in the embodiment of the present invention may further include PDSCH grouping trigger indication information corresponding to the first DCI, and the method for determining the PDSCH grouping trigger indication information may be implemented alone or in combination with the method for determining the NFI, which is not limited in this embodiment of the present invention. In this way, a scheme including PDSCH packet trigger indication information according to an embodiment of the present invention will be described in detail based on the first or second aspect.

In some embodiments, an embodiment of the present invention further provides a method for determining PDSCH packet trigger indication information, including:

receiving a first DCI;

when the first DCI has corresponding PDSCH grouping trigger indication information, the PDSCH grouping trigger indication information follows the PDSCH grouping trigger indication information in the latest second DCI; and the hybrid automatic repeat request acknowledgement HARQ-ACK corresponding to the first DCI and the HARQ-ACK corresponding to the latest second DCI are carried in the same HARQ-ACK dynamic codebook transmission.

Wherein, in one embodiment, the second DCI scheduled PDSCH may be attributed to the same PDSCH packet as the first DCI scheduled PDSCH. Here, there may be no limitation on whether or not belonging to the same PDSCH packet.

In another embodiment, the PDSCH packet triggering indication information in the second DCI is used to determine a set of PDSCH packets for which the second DCI triggers feedback HARQ-ACK;

wherein the second DCI triggers the PDSCH grouping set for feeding back the HARQ-ACK, and the set comprises: the PDSCH packet to which the PDSCH scheduled by the second DCI belongs, and other PDSCH packets or PDSCH packet sets explicitly triggered by the second DCI.

Based on this, the embodiment of the present invention further provides another possibility, that is, when the second DCI does not exist, it is determined that the PDSCH packet trigger indication information corresponding to the first DCI is the preset PDSCH packet trigger indication information, that is, only the scheduled PDSCH packet is triggered, or only the PDSCH packet 0 is triggered.

Here, in the scheme including the PDSCH packet triggering indication information, the first DCI and the second DCI point to the same slot through the HARQ-ACK Timing indication field, or point to the same HARQ-ACK dynamic codebook transmission.

It should be noted that, when a plurality of first DCI or second DCI points to the same time slot through the HARQ-ACK Timing indication field, the HARQ-ACK corresponding to the PDSCH scheduled by the DCI is transmitted in the same dynamic codebook in the time slot and is carried in the same PUCCH transmission, and when the PUCCH transmission and the PUSCH transmission satisfy the time domain overlapping condition, the dynamic codebook is actually carried in the PUSCH transmission.

Therefore, the embodiment of the present invention provides a continuation example of NFI and PDSCH packet trigger indication information, which may be specifically described with reference to fig. 5.

As shown in fig. 5, G indicates a PDSCH packet number and takes a value of 0 or 1, in the embodiment of the present invention, for example, only single carrier operation is considered, so that only counter DAI exists (that is, when a UE only configures a single serving cell, Downlink Assignment Index (DAI) counts one by one according to the time sequence indicated by DCI only for a single carrier, which may be referred to as counter DAI, which is referred to as C-DAI for short); t indicates whether another PDSCH packet is triggered (0 for not triggered, 1 for triggered).

The information directly indicated in the fallback DCI is identified with black text and the information along is identified with grey text. As can be seen from fig. 5, the Fallback DCIs corresponding to D2 and D3 follow the NFI and PDSCH packet triggering indications in the Non-Fallback DCIs corresponding to D1, and the Fallback DCIs corresponding to D5 follow the NFI and PDSCH packet triggering indications in the Non-Fallback DCIs corresponding to D4. Here, D1 and D4 (collectively referred to as Dx) may each refer to Non-fallback DCI scheduled group 0PDSCH transmission, D2, D3 and D5 (collectively referred to as Dy) may each refer to fallback DCI scheduled PDSCH transmission (i.e., necessarily belonging to group 0), U1 and Um (collectively referred to as Ux) carry HARQ-ACK PUCCH or HARQ-ACK dynamic codebook transmission.

In addition, the second method may also be applied to a scenario of Semi-Persistent Scheduling (SPS) PDSCH transmission data (SPS PDSCH transmission may be understood as PDSCH transmission periodically initiated after downlink SPS transmission is activated, and the PDSCH transmission has no corresponding DCI indication), so that the embodiment of the present invention further provides a method for determining NFI, which is specifically as follows:

and the terminal equipment receives the SPS Physical Downlink Shared Channel (PDSCH) sent by the network equipment, and determines that the NFI of the new feedback indication corresponding to the SPS PDSCH is the NFI in the latest second DCI. I.e., SPS PDSCH is attributed to PDSCH packet 0, NFI in the last Non-fallback DCI that schedules PDSCH attributed to PDSCH packet 0 is also used. Wherein the PDSCH scheduled by the second DCI and the SPS PDSCH belong to the same PDSCH group.

Here, the PDSCH scheduled by the second DCI and the SPS PDSCH belong to PDSCH packet 0.

In addition, the embodiment of the invention also provides a method for determining the PDSCH grouping triggering indication information.

Wherein, when the HARQ-ACK of the SPS PDSCH is independently transmitted, the HARQ-ACK corresponding to the SPS PDSCH is fed back to the network equipment (i.e. the transmission of the HARQ-ACK of the second PDSCH packet is not triggered).

It should be noted that the first parameter is not considered here. In addition, in the process of considering the first parameter, the following modes can be referred to:

and when the network configures the first parameter for the terminal equipment, feeding back the HARQ-ACK bit sequence corresponding to the second PDSCH packet to the network equipment (namely triggering the transmission of the HARQ-ACK of the second PDSCH packet). And the second PDSCH packet is a PDSCH packet belonging to the SPS PDSCH. Here, the first parameter may be a parameter SPS-PUCCH-AN-List. Or when the network does not configure the first parameter for the terminal equipment, feeding back the HARQ-ACK corresponding to the SPS PDSCH to the network equipment.

Here, feeding back the HARQ-ACK bit sequence corresponding to the second PDSCH packet to the network device may be understood as triggering transmission of HARQ-ACK of the second PDSCH packet. At this time, on the PUCCH resources configured for the SPS PDSCH, the HARQ-ACK bit sequence aiming at the second PDSCH packet is transmitted, wherein the HARQ-ACK bit sequence comprises the HARQ-ACK corresponding to the SPS PDSCH. Specifically, the used PUCCH resource is selected from a PUCCH resource list configured by the network for the UE based on the number of bits included in the HARQ-ACK bit sequence. And the HARQ-ACK bit sequence of the second PDSCH packet comprises all HARQ-ACKs to be transmitted corresponding to the second PDSCH packet, wherein the PDSCH set of the HARQ-ACKs to be transmitted is determined by the NFI of the second PDSCH packet.

It should be noted that the independent transmission in the embodiment of the present invention means that the new HARQ-ACK included in the HARQ-ACK dynamic codebook transmission in a certain uplink timeslot only corresponds to SPS PDSCH transmission. For example, the following steps are carried out: when only HARQ-ACK aiming at SPS PDSCH is fed back in a certain PUCCH or a certain HARQ-ACK transmission in a certain uplink time slot (namely, the joint transmission of the HARQ-ACK aiming at the PDSCH with dynamic scheduling is not involved at the moment), if the parameter SPS-PUCCH-AN-List is not configured for the terminal equipment, the HARQ-ACK transmission of the SPS PDSCH does not trigger the PDSCH packet which belongs to the terminal equipment, namely the HARQ-ACK transmission of the PDSCH packet 0.

On the contrary, if the parameter SPS-PUCCH-AN-List is configured for the terminal device, the HARQ-ACK transmission of the SPS PDSCH may trigger the HARQ-ACK transmission of the PDSCH packet to which the terminal device belongs (at this time, a certain PUCCH resource in the PUCCH resource List corresponding to the parameter SPS-PUCCH-AN-List is selected according to the number of bits of the HARQ-ACK to be transmitted).

To sum up, after applying the first or second method and the scheme including the PDSCH packet trigger indication information corresponding to the first DCI, the embodiment of the present invention may further include:

determining a HARQ-ACK bit sequence of a dynamic codebook based on PDSCH grouping trigger indication information corresponding to the last DCI corresponding to the HARQ-ACK loaded in the transmission of the dynamic codebook and NFI corresponding to the last DCI corresponding to each PDSCH grouping; and the last DCI is the first DCI or the second DCI. Here, the PDSCH packet trigger indication information corresponding to the last DCI may be directly indicated in the second DCI, or may be determined based on the scheme of the PDSCH packet trigger indication information corresponding to the first DCI.

For example: the terminal device constructs the HARQ-ACK Codebook based on the last DCI (may be DL fallback DCI or DL non-fallback DCI) indication corresponding to the HARQ-ACK carried in the same PUCCH or Codebook transmission or the NFI and PDSCH packet trigger indication used along, and the DAI and other information in this DCI. Specifically, as shown in fig. 5, when the terminal device organizes the HARQ-ACK Codebook carried in U2, the HARQ-ACK Codebook is constructed based on the C-DAI indicated in the Fallback DCI for scheduled D5 transmission, the predefined scheduled PDSCH packet, and the NFI and PDSCH packet triggering indications that follow.

Thus, according to the first downlink control information DCI sent by the receiving network device, a new feedback indication NFI is determined, where the NFI may re-interpret the first indication field indication in the first DCI; alternatively, the indication is implicit by the first DCI. Compared with the prior art, the NFI of the embodiment of the present invention may re-interpret the indication of the first indication field in the first DCI, or may implicitly indicate the first DCI, so that the first DCI may not introduce a new indication field for the enhanced dynamic codebook to change the DCI size, the DCI indication overhead may be saved, and the principle that NR does not have a field for a configurable function in a fallback DCI format is met, and the UE may determine the NFI value, so as to ensure that the UE can accurately feed back the HARQ-ACK dynamic codebook to its corresponding network device, thereby ensuring normal downlink data transmission.

Based on the method for determining the NFI based on the terminal device shown in fig. 2 to fig. 5, an embodiment of the present invention further provides a method for determining the NFI based on the network device, which is described in detail below.

Fig. 6 is a flowchart of a method for determining an NFI based on a network device according to an embodiment of the present invention.

As shown in fig. 6, the method includes steps 610-620, which are specifically as follows:

step 610, generating a first downlink control information DCI.

Here, the first DCI is a fallback downlink control information fallback DCI format; alternatively, DCI format 1_ 0. The first DCI is used for indicating the terminal equipment to determine a new feedback indication NFI according to the first DCI; wherein the NFI indicates by reinterpreting the first indication field in the first DCI; alternatively, NFI is implicitly indicated by the first DCI.

The embodiment of the present invention provides two ways, where NFI is indicated in the first DCI, which are specifically as follows:

the first method is as follows: the NFI indicates by reinterpreting the first indication field in the first DCI.

The second method comprises the following steps: NFI is implicitly indicated by the first DCI.

The above two modes are explained separately:

firstly, referring to the first mode, NFI is indicated by N indication bits of a first indication field; wherein N is an integer greater than or equal to 1.

Here, the first indication field in the embodiment of the present invention includes: a frequency domain resource allocation indication field or a redundancy version indication field.

Further, when the first indication field is a redundancy version indication field, the redundancy version indication field comprises a first indication bit and a second indication bit; wherein the first indication bit is used for indicating NFI, and the second indication bit is used for indicating a first redundancy version in a preset redundancy version candidate set. Or, when the first indication field is the frequency domain resource allocation indication field, the highest indicator bit in the frequency domain resource allocation indication field is used for indicating the NFI.

Next, the second embodiment: under the condition that the NFI is implicitly indicated by the first DCI, the NFI is determined by the NFI in the nearest second DCI, and the PDSCH scheduled by the second DCI and the PDSCH scheduled by the first DCI belong to the same PDSCH group.

The second DCI in the embodiment of the invention is in a Non-fallback downlink control information Non-fallback DCI format; alternatively, DCI format 1_ 1.

In one embodiment, the starting time of the PDSCH detection opportunity corresponding to the second DCI is no later than the starting time of the PDSCH detection opportunity corresponding to the first DCI.

In another example, the first DCI corresponds to PDSCH packet trigger indication information; wherein the PDSCH packet trigger indication information follows the PDSCH packet trigger indication information in the latest second DCI.

And the hybrid automatic repeat request acknowledgement HARQ-ACK corresponding to the first DCI and the HARQ-ACK corresponding to the latest second DCI are carried in the same HARQ-ACK dynamic codebook transmission.

Here, the second DCI scheduled PDSCH may be attributed to the same PDSCH packet as the first DCI scheduled PDSCH.

In addition, when the second DCI does not exist, determining that the PDSCH packet trigger indication information corresponding to the first DCI is preset PDSCH packet trigger indication information.

Step 620, sending the DCI to the terminal equipment.

The first DCI is used for indicating the terminal equipment to determine a new feedback indication NFI according to the first DCI; the NFI indicates the indication in step 610 by way one or by way two.

In addition, the method may further include receiving a HARQ-ACK bit sequence of a HARQ-ACK dynamic codebook based on a set of PDSCH packets corresponding to the first PDSCH packet trigger indication information and a first NFI corresponding to each PDSCH packet in the set of PDSCH packets.

The first PDSCH grouping triggering indication information is PDSCH grouping triggering indication information corresponding to the last DCI corresponding to the HARQ-ACK carried in the HARQ-ACK dynamic codebook, the first NFI is NFI corresponding to the last DCI corresponding to each PDSCH grouping in the PDSCH grouping set, and the last DCI is the first DCI or the second DCI.

It should be noted that the principle of the first mode and the second mode related to fig. 6 is the same as that of the first mode and the second mode related to step 220, and specific contents are detailed in step 220 and are not described herein again.

Fig. 7 is an interaction flowchart of a method for determining an NFI according to an embodiment of the present invention.

As shown in fig. 7, the method may include steps 710-730, as follows:

step 710, the network device sends the first downlink control information DCI to the terminal device.

Step 720, the terminal device receives the first downlink control information DCI sent by the network device, and determines a new feedback indication NFI according to the first DCI.

Here, the principle of the step related to the terminal device determining the NFI is the same as that described in step 220, and specific contents are described in step 220, and are not described herein again.

Step 730, the terminal device determines the HARQ-ACK codebook according to the NFI and PDSCH grouping trigger indication information determined in step 720.

And determining the HARQ-ACK bit sequence of the dynamic codebook based on the PDSCH grouping trigger indication information corresponding to the last DCI corresponding to the HARQ-ACK carried in the dynamic codebook transmission and the NFI corresponding to the last DCI corresponding to each PDSCH grouping. Here, the last DCI is the first DCI or the second DCI. Here, the PDSCH packet trigger indication information corresponding to the last DCI may be directly indicated in the first DCI, or may be determined based on the scheme including the PDSCH packet trigger indication information corresponding to the first DCI.

Based on the methods related to fig. 2 to fig. 7, an embodiment of the present invention provides an apparatus for determining an NFI based on a terminal device and based on a network device, which is specifically described with reference to fig. 8 and fig. 9 respectively.

Fig. 8 is a schematic block diagram of an apparatus for determining an NFI based on a terminal device according to an embodiment of the present invention.

As shown in fig. 8, the means 800 for determining NFI may include:

a transceiver module 801, configured to receive first downlink control information DCI sent by a network device; here, the first DCI is a fallback downlink control information fallback DCI format; alternatively, DCI format 1_ 0.

A determining module 802, configured to determine a new feedback indication NFI according to the first DCI;

here, the embodiment of the present invention provides two ways, where NFI is indicated in the first DCI, which are specifically shown as follows:

The above two modes are explained separately:

the first method is as follows: in the case that the NFI is indicated by reinterpreting the first indication field in the first DCI, the NFI is indicated by N indication bits of the first indication field; wherein N is an integer greater than or equal to 1.

Here, the first indication field includes: a frequency domain resource allocation indication field or a redundancy version indication field.

In one embodiment, when the first indication field is a redundancy version indication field, the redundancy version indication field comprises a first indication bit and a second indication bit; wherein the first indication bit is used for indicating NFI, and the second indication bit is used for indicating a first redundancy version in a preset redundancy version candidate set.

In another embodiment, when the first indication field is a frequency domain resource allocation indication field, the highest indicator bit in the frequency domain resource allocation indication field is used to indicate NFI.

The second method comprises the following steps: under the condition that the NFI is implicitly indicated by the first DCI, the NFI is determined by the NFI in the nearest second DCI, and the PDSCH scheduled by the second DCI and the PDSCH scheduled by the first DCI belong to the same PDSCH group. Here, the second DCI is a Non-fallback downlink control information Non-fallback DCI format; alternatively, DCI format 1_ 1.

And when the second DCI does not exist, determining the NFI corresponding to the first DCI as the preset NFI. The starting time of the PDSCH detection opportunity corresponding to the second DCI is not later than the starting time of the PDSCH detection opportunity corresponding to the first DCI.

In addition, the embodiment of the present invention further provides a scheme based on the first mode or the second mode and the PDSCH grouping trigger indication information corresponding to the first DCI.

Based on the information, the first DCI corresponds to PDSCH grouping trigger indication information; wherein, the PDSCH grouping trigger indication information follows the PDSCH grouping trigger indication information in the latest second DCI;

Here, the PDSCH scheduled by the second DCI belongs to the same PDSCH packet as the PDSCH scheduled by the first DCI.

The determining module 802 in this embodiment of the present invention may be further configured to determine, when the second DCI does not exist, that the PDSCH grouping trigger indication information corresponding to the first DCI is the preset PDSCH grouping trigger indication information.

In addition, the apparatus 800 for determining an NFI provided in the embodiment of the present invention may further include a processing module 803, configured to determine, based on PDSCH packet trigger indication information corresponding to a last DCI corresponding to HARQ-ACK carried in dynamic codebook transmission, an HARQ-ACK bit sequence of the dynamic codebook, where the NFI corresponds to the last DCI corresponding to each PDSCH packet that is triggered; and the last DCI is the first DCI or the second DCI.

Fig. 9 is a schematic block diagram of an apparatus for determining an NFI based on a network device according to an embodiment of the present invention.

As shown in fig. 9, the apparatus 900 for determining an NFI specifically may include:

a processing module 901, configured to generate the first downlink control information DCI.

Here, the first DCI is a fallback downlink control information fallback DCI format; alternatively, DCI format 1_ 0. The first DCI is used for indicating the terminal equipment to determine a new feedback indication NFI according to the first DCI; here, the NFI indicates by reinterpreting the first indication field in the first DCI; alternatively, NFI is implicitly indicated by the first DCI.

The above two modes are explained separately:

Here, when the second DCI does not exist, the NFI corresponding to the first DCI is determined to be the preset NFI.

A transceiving module 901, configured to send the first downlink control information DCI to the terminal device.

The first DCI is used for indicating the terminal equipment to determine a new feedback indication NFI according to the first DCI.

In addition, the transceiver module 901 provided in the embodiment of the present invention may also be configured to receive a HARQ-ACK bit sequence of a HARQ-ACK dynamic codebook based on a PDSCH packet set corresponding to the first PDSCH packet trigger indication information and a first NFI corresponding to each PDSCH packet in the PDSCH packet set; the first PDSCH grouping triggering indication information is PDSCH grouping triggering indication information corresponding to the last DCI corresponding to the HARQ-ACK carried in the HARQ-ACK dynamic codebook, the first NFI is NFI corresponding to the last DCI corresponding to each PDSCH grouping in the PDSCH grouping set, and the last DCI is the first DCI or the second DCI.

Fig. 10 is a schematic diagram of a hardware structure of a terminal device according to an embodiment of the present invention.

As shown in fig. 10, the terminal device 1000 includes but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, a processor 1010, and a power supply 1011.

Those skilled in the art will appreciate that the terminal device configuration shown in fig. 10 is not intended to be limiting, and that terminal devices may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 1001 may be configured to receive and transmit signals during a message transmission or a call, and specifically, receive downlink resources from a base station and then process the received downlink resources to the processor 1010; in addition, the uplink resource is transmitted to the base station. In general, radio frequency unit 1001 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. Further, the radio frequency unit 1001 may also communicate with a network and other devices through a wireless communication system.

The terminal device provides the user with wireless broadband internet access through the network module 1002, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.

The audio output unit 1003 may convert an audio resource received by the radio frequency unit 1001 or the network module 1002 or stored in the memory 1009 into an audio signal and output as sound. Also, the audio output unit 1003 can also provide audio output related to a specific function performed by the terminal apparatus 1000 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 1003 includes a speaker, a buzzer, a receiver, and the like.

The input unit 1004 is used to receive an audio or video signal. The input Unit 1004 may include a Graphics Processing Unit (GPU) 10041 and a microphone 10042, the Graphics processor 10041 Processing image resources of still pictures or video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The processed image frames may be displayed on the display unit 1007. The image frames processed by the graphic processor 10041 may be stored in the memory 1009 (or other storage medium) or transmitted via the radio frequency unit 1001 or the network module 1002. The microphone 10042 can receive sound and can process such sound into an audio asset. The processed audio resource may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 1001 in case of a phone call mode.

Terminal device 1000 can also include at least one sensor 1005, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 10061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 10061 and/or backlight when the terminal device 1000 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal device posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 1005 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which will not be described in detail herein.

The display unit 1006 is used to display information input by the user or information provided to the user. The Display unit 1006 may include a Display panel 10061, and the Display panel 10061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 1007 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal device. Specifically, the user input unit 1007 includes a touch panel 10071 and other input devices 10072. The touch panel 10071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 10071 (e.g., operations by a user on or near the touch panel 10071 using a finger, a stylus, or any other suitable object or attachment). The touch panel 10071 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 1010, and receives and executes commands sent by the processor 1010. In addition, the touch panel 10071 may be implemented by various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 10071, the user input unit 1007 can include other input devices 10072. Specifically, the other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a track ball, a mouse, and a joystick, which are not described herein again.

Further, the touch panel 10071 can be overlaid on the display panel 10061, and when the touch panel 10071 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 1010 to determine the type of the touch event, and then the processor 1010 provides a corresponding visual output on the display panel 10061 according to the type of the touch event. Although in fig. 10, the touch panel 10071 and the display panel 10061 are two independent components for implementing the input and output functions of the terminal device, in some embodiments, the touch panel 10071 and the display panel 10061 may be integrated to implement the input and output functions of the terminal device, and the implementation is not limited herein.

The interface unit 1008 is an interface for connecting an external device to the terminal apparatus 1000. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless resource port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 1008 may be used to receive input (e.g., resource information, power, etc.) from external devices and transmit the received input to one or more elements within the terminal apparatus 1000 or may be used to transmit resources between the terminal apparatus 1000 and external devices.

The memory 1009 may be used to store software programs and various resources. The memory 1009 may mainly include a storage program area and a storage resource area, wherein the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, and the like) required by at least one function, and the like; the storage resource area may store resources (such as audio resources, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 1009 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 1010 is a control center of the terminal device, connects various parts of the entire terminal device by using various interfaces and lines, and performs various functions and processing resources of the terminal device by running or executing software programs and/or modules stored in the memory 1009 and calling resources stored in the memory 1009, thereby performing overall monitoring of the terminal device. Processor 1010 may include one or more processing units; preferably, the processor 1010 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 1010.

Terminal device 1000 can also include a power supply 1011 (e.g., a battery) for powering the various components, and preferably, power supply 1011 can be logically coupled to processor 1010 via a power management system that provides functionality for managing charging, discharging, and power consumption.

In addition, the terminal device 1000 includes some functional modules that are not shown, and are not described herein again.

Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed in a computer, the computer is caused to execute the steps of the method for determining NFI of an embodiment of the present invention.

As shown in fig. 11, a block diagram of an exemplary hardware architecture of a network device capable of implementing the method for determining the NFI according to the embodiment of the present invention is shown.

The apparatus may include a processor 1101 and a memory 1102 in which computer program instructions are stored.

Specifically, the processor 1101 may include a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

Memory 1102 may include mass storage for data or instructions. By way of example, and not limitation, memory 1102 may include a Hard Disk Drive (HDD), a floppy disk drive, flash memory, an optical disk, a magneto-optical disk, magnetic tape, or a Universal Serial Bus (USB) drive or a combination of two or more of these. Memory 1102 may include removable or non-removable (or fixed) media, where appropriate. Memory 1102 may be internal or external to the integrated gateway device, where appropriate. In a particular embodiment, the memory 1102 is a non-volatile solid-state memory. In a particular embodiment, the memory 1102 includes Read Only Memory (ROM). Where appropriate, the ROM may be mask-programmed ROM, Programmable ROM (PROM), Erasable PROM (EPROM), Electrically Erasable PROM (EEPROM), electrically rewritable ROM (EAROM), or flash memory, or a combination of two or more of these.

The processor 1101 implements any one of the above-described methods of determining NFI by reading and executing computer program instructions stored in the memory 1102.

The transceiver 1103 is mainly used for implementing the apparatus according to the embodiment of the present invention or communicating with other devices (e.g., terminal devices).

In one example, the device may also include a bus 1104. As shown in fig. 11, the processor 1101, the memory 1102 and the transceiver 1103 are connected via a bus 1104 to complete the communication therebetween.

Bus 1104 includes hardware, software, or both. By way of example, and not limitation, a bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a Hypertransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an infiniband interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro Channel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a video electronics standards association local (VLB) bus, or other suitable bus or a combination of two or more of these. Bus 1103 may include one or more buses, where appropriate. Although specific buses are described and shown in the embodiments of the application, any suitable buses or interconnects are contemplated by the application.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

Claims

1. A method for determining a New Feedback Indication (NFI) is applied to a terminal device, and the method comprises the following steps:

receiving first Downlink Control Information (DCI) sent by network equipment;

determining a new feedback indication NFI according to the first DCI;

wherein the NFI indicates by reinterpreting a first indication field in the first DCI; alternatively, the NFI is implicitly indicated by the first DCI.

2. The method of claim 1,

in the case that the NFI is indicated by reinterpreting a first indication field in the first DCI, the NFI is indicated by N indication bits of the first indication field;

wherein N is an integer greater than or equal to 1.

3. The method of claim 1 or 2, wherein the first indication field comprises: a frequency domain resource allocation indication field or a redundancy version indication field.

4. The method according to claim 3, wherein when the first indication field is the redundancy version indication field, the redundancy version indication field comprises a first indication bit and a second indication bit;

wherein the first indication bit is used for indicating the NFI, and the second indication bit is used for indicating a first redundancy version in a preset redundancy version candidate set.

5. The method of claim 3, wherein when the first indication field is the frequency-domain resource allocation indication field, a highest indicator bit in the frequency-domain resource allocation indication field is used for indicating the NFI.

6. The method according to any of claims 1-5, wherein the first DCI is a fallback downlink control information fallback DCI format; alternatively, DCI format 1_ 0.

7. The method of claim 1, wherein the NFI is determined by an NFI in a second latest DCI, where the NFI is implicitly indicated by the first DCI, and wherein a PDSCH scheduled by the second DCI belongs to the same PDSCH group as a PDSCH scheduled by the first DCI.

8. The method of claim 7,

and when the second DCI does not exist, determining the NFI corresponding to the first DCI as a preset NFI.

9. The method of claim 7, wherein a starting time of a PDSCH detection opportunity corresponding to the second DCI is no later than a starting time of a PDSCH detection opportunity corresponding to the first DCI.

10. The method of claim 1, wherein the first DCI corresponds to PDSCH packet trigger indication information; wherein the content of the first and second substances,

the PDSCH grouping trigger indication information follows the PDSCH grouping trigger indication information in the latest second DCI;

and the hybrid automatic repeat request acknowledgement HARQ-ACK corresponding to the first DCI and the HARQ-ACK corresponding to the nearest second DCI are carried in the same HARQ-ACK dynamic codebook transmission.

11. The method of claim 10, wherein the second DCI scheduled PDSCH is assigned to the same PDSCH packet as the first DCI scheduled PDSCH.

12. The method of claim 10, further comprising:

and when the second DCI does not exist, determining that the PDSCH grouping trigger indication information corresponding to the first DCI is preset PDSCH grouping trigger indication information.

13. The method according to any of claims 7-12, wherein the second DCI is a Non-fallback downlink control information Non-fallback DCI format; alternatively, DCI format 1_ 1.

14. The method according to any one of claims 1-13, further comprising:

determining a HARQ-ACK bit sequence of a HARQ-ACK dynamic codebook based on a PDSCH grouping set corresponding to the first PDSCH grouping trigger indication information and a first NFI corresponding to each PDSCH grouping in the PDSCH grouping set;

15. A method for determining NFI, applied to a network device, includes:

sending first downlink control information DCI to the terminal equipment;

the first DCI is used for indicating the terminal equipment to determine a new feedback indication NFI according to the first DCI; wherein the NFI indicates by reinterpreting a first indication field in the first DCI; alternatively, NFI is implicitly indicated by the first DCI.

16. The method of claim 15, comprising:

wherein N is an integer greater than or equal to 1.

17. The method according to claim 15 or 16, wherein the first indication field comprises: a frequency domain resource allocation indication field or a redundancy version indication field.

18. The method of claim 17, wherein when the first indication field is the redundancy version indication field, the redundancy version indication field comprises a first indication bit and a second indication bit;

19. The method of claim 17, wherein when the first indication field is the frequency-domain resource allocation indication field, a highest order indication bit in the frequency-domain resource allocation indication field is used for indicating the NFI.

20. The method according to any of claims 15-19, wherein the first DCI is a fallback downlink control information fallback DCI format; alternatively, DCI format 1_ 0.

21. The method of claim 15, wherein the NFI is determined by an NFI in a nearest second DCI where the NFI is implicitly indicated by the first DCI, and wherein a Physical Downlink Shared Channel (PDSCH) scheduled by the second DCI and a PDSCH scheduled by the first DCI belong to a same PDSCH group.

22. The method of claim 21,

23. The method of claim 21, wherein a starting time of a PDSCH detection opportunity corresponding to the second DCI is no later than a starting time of a PDSCH detection opportunity corresponding to the first DCI.

24. The method of claim 15, wherein the first DCI corresponds to PDSCH packet trigger indication information; wherein the content of the first and second substances,

25. The method of claim 24, wherein the second DCI scheduled PDSCH and the first DCI scheduled PDSCH may be attributed to the same PDSCH packet.

26. The method of claim 24, further comprising:

27. The method according to any of claims 21-26, wherein the second DCI is a Non-fallback downlink control information Non-fallback DCI format; alternatively, DCI format 1_ 1.

28. The method according to any one of claims 15-27, further comprising:

receiving a HARQ-ACK bit sequence of a HARQ-ACK dynamic codebook based on a PDSCH grouping set corresponding to the first PDSCH grouping trigger indication information and a first NFI corresponding to each PDSCH grouping in the PDSCH grouping set;

29. A method for determining a New Feedback Indication (NFI) is applied to a terminal device, and the method comprises the following steps:

receiving a semi-persistent scheduling (SPS) Physical Downlink Shared Channel (PDSCH) sent by network equipment;

wherein the PDSCH scheduled by the second DCI and the SPS PDSCH belong to the same PDSCH packet.

30. The method of claim 29, wherein the second DCI scheduled PDSCH and the SPS PDSCH are grouped into PDSCH packet 0.

31. The method of claim 29, wherein the second DCI is a Non-fallback downlink control information Non-fallback DCI format; alternatively, DCI format 1_ 1.

32. A method for determining a New Feedback Indication (NFI) applied to a network device, the method comprising:

determining, by the terminal device, that a new feedback indication NFI corresponding to the SPS PDSCH is a latest NFI in the second DCI;

33. The method of claim 32, wherein the second DCI scheduled PDSCH and the SPS PDSCH are grouped into PDSCH packet 0.

34. The method of claim 32, wherein the second DCI is a Non-fallback downlink control information Non-fallback DCI format; alternatively, DCI format 1_ 1.

35. A method for determining PDSCH grouping trigger indication information is applied to a terminal device and is characterized by comprising the following steps:

when the HARQ-ACK of the SPS PDSCH is independently transmitted, feeding back the HARQ-ACK corresponding to the SPS PDSCH to network equipment;

alternatively, the first and second electrodes may be,

36. A method for determining PDSCH packet trigger indication information is applied to a network device, and is characterized by comprising the following steps:

when the HARQ-ACK of the SPS PDSCH is independently transmitted, receiving the HARQ-ACK corresponding to the SPS PDSCH fed back by the terminal equipment;

alternatively, the first and second electrodes may be,

37. An apparatus for determining a new feedback indication NFI, applied to a terminal device, the apparatus comprising:

38. An apparatus for determining a New Feedback Indication (NFI), applied to a network device, the apparatus comprising:

the first DCI is used for indicating the terminal equipment to determine a new feedback indication NFI according to the first DCI; the NFI indicates by reinterpreting a first indication field in the first DCI; alternatively, NFI is implicitly indicated by the first DCI.

39. An apparatus for determining a new feedback indication NFI, applied to a terminal device, includes:

the system comprises a receiving and sending module, a scheduling module and a scheduling module, wherein the receiving and sending module is used for receiving a semi-persistent scheduling (SPS) Physical Downlink Shared Channel (PDSCH) sent by network equipment;

40. An apparatus for determining a new feedback indication NFI, applied to a network device, includes:

the receiving and sending module is used for sending a semi-persistent scheduling (SPS) Physical Downlink Shared Channel (PDSCH) to the terminal equipment;

41. An apparatus for determining PDSCH packet triggering indication information, applied to a terminal device, includes:

the first transceiver module is used for feeding back HARQ-ACK corresponding to the SPS PDSCH to network equipment when the HARQ-ACK of the SPS PDSCH is independently transmitted;

alternatively, the first and second electrodes may be,

and the second transceiver module is configured to feed back, to the network device, a HARQ-ACK bit sequence corresponding to a second PDSCH packet when the network configures the first parameter for the terminal device, where the second PDSCH packet is a PDSCH packet to which the SPS PDSCH belongs.

42. An apparatus for determining PDSCH packet triggering indication information, applied to a network device, includes:

a first transceiving module, configured to receive HARQ-ACK corresponding to the SPS PDSCH fed back by a terminal device when HARQ-ACK of the SPS PDSCH is transmitted independently,

alternatively, the first and second electrodes may be,

and the second transceiver module is configured to receive, when the network configures the first parameter for the terminal device, a HARQ-ACK bit sequence corresponding to a second PDSCH packet fed back by the terminal device, where the second PDSCH packet is a PDSCH packet to which the SPS PDSCH belongs.

43. A terminal device, comprising: memory, processor and computer program stored on the memory and executable on the processor, the processor implementing the steps of the method according to any one of claims 1 to 14, 29-31 or 35 when executing the computer program.

44. A network device, comprising: memory, processor and computer program stored on the memory and executable on the processor, the processor implementing the steps of the method according to any of claims 15 to 28, 32-34 or 36 when executing the computer program.

45. A computer-readable storage medium, having stored thereon a computer program which, when executed by a processor, carries out the steps of the method according to any one of claims 1 to 14, claims 15 to 28, 29 to 31, 32 to 34, 35 or 36.