CN112804033B

CN112804033B - HARQ-ACK processing method and related equipment

Info

Publication number: CN112804033B
Application number: CN201911115749.XA
Authority: CN
Inventors: 曾超君; 李�根
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2023-05-26
Anticipated expiration: 2039-11-14
Also published as: CN112804033A

Abstract

The invention provides a HARQ-ACK processing method and related equipment, wherein the method comprises the following steps: determining a reference PDCCH monitoring opportunity corresponding to a SPS PDSCH; and determining a first DAI corresponding to the SPS PDSCH according to the reference PDCCH monitoring opportunity, wherein the first DAI is used for constructing a dynamic codebook containing HARQ-ACK corresponding to the SPS PDSCH. The embodiment of the invention brings the SPS PDSCH into a unified dynamic codebook frame, thereby improving the flexibility and expansibility of HARQ-ACK transmission corresponding to the SPS PDSCH.

Description

HARQ-ACK processing method and related equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a HARQ-ACK processing method and related devices.

Background

In the fifth generation (5) ^th Unlicensed band (5G) may be used as a supplement to licensed band (unlicensed band) in a Generation, or New Radio, NR, communication system to help operators expand services. In the unlicensed band (New Radio unlicensed band, NR-U) of the new air interface, the dynamic codebook for hybrid automatic repeat request acknowledgement (Hybrid automatic repeat request acknowledgement, HARQ-ACK) has been introduced to the present day, but the Semi-persistent scheduling physical downlink shared channel (Semi-Persistent Scheduling Physical downlink shared channel, SPS PDSCH) has not been considered alone. In the existing dynamic codebook corresponding to scheduling, only HARQ-ACK corresponding to the SPS PDSCH with 1 bit is allowed to be carried at the tail at most, so that the flexibility and the expansibility of the HARQ-ACK transmission corresponding to the SPS PDSCH are poor.

Disclosure of Invention

The embodiment of the invention provides a HARQ-ACK processing method and related equipment, which are used for solving the problems of poor flexibility and poor expansibility of HARQ-ACK transmission corresponding to an SPS PDSCH.

In a first aspect, an embodiment of the present invention provides a hybrid automatic repeat request acknowledgement HARQ-ACK processing method, applied to a terminal, including:

determining a reference physical downlink control channel (Physical downlink control channel, PDCCH) monitoring opportunity (Monitoring occasion) corresponding to a semi-persistent scheduling physical downlink shared channel (SPSPSPPDSCH);

and determining a first downlink allocation index (Downlink assignment index, DAI) corresponding to the SPS PDSCH according to the reference PDCCH monitoring opportunity, wherein the first DAI is used for constructing a dynamic codebook containing HARQ-ACK corresponding to the SPS PDSCH.

In a second aspect, an embodiment of the present invention further provides a hybrid automatic repeat request acknowledgement HARQ-ACK processing method, applied to a network device, including:

determining a reference PDCCH monitoring opportunity corresponding to a SPS PDSCH;

and determining a first DAI corresponding to the SPS PDSCH according to the reference PDCCH monitoring opportunity, wherein the first DAI is used for analyzing a dynamic codebook containing HARQ-ACK corresponding to the SPS PDSCH.

In a third aspect, an embodiment of the present invention further provides a terminal, including:

the first determining module is used for determining a reference PDCCH monitoring opportunity corresponding to a semi-persistent scheduling physical downlink shared channel (SPS PDSCH);

and the second determining module is used for determining a first DAI corresponding to the SPS PDSCH according to the reference PDCCH monitoring opportunity, and the first DAI is used for constructing a dynamic codebook containing HARQ-ACK corresponding to the SPS PDSCH.

In a fourth aspect, an embodiment of the present invention further provides a network device, including:

a third determining module, configured to determine a reference PDCCH monitoring opportunity corresponding to a SPS PDSCH of the semi-persistent scheduling physical downlink shared channel;

and a fourth determining module, configured to determine, according to the reference PDCCH monitoring opportunity, a first DAI corresponding to the SPS PDSCH, where the first DAI is configured to parse a dynamic codebook that includes HARQ-ACKs corresponding to the SPS PDSCH.

In a fifth aspect, an embodiment of the present invention further provides a terminal, including: the system comprises a memory, a processor and a program stored in the memory and capable of running on the processor, wherein the program realizes the steps in a hybrid automatic repeat request acknowledgement (HARQ-ACK) processing method at a terminal side when being executed by the processor.

In a sixth aspect, an embodiment of the present invention further provides a network device, including: the hybrid automatic repeat request acknowledgement (HARQ-ACK) processing method comprises a memory, a processor and a program stored in the memory and capable of running on the processor, wherein the program is executed by the processor to realize the steps in the hybrid automatic repeat request acknowledgement (HARQ-ACK) processing method at a network device side.

In a seventh aspect, an embodiment of the present invention further provides a computer readable storage medium, where a computer program is stored, where the computer program when executed by a processor implements a step of a hybrid automatic repeat request acknowledgement HARQ-ACK processing method on a terminal side, or where the computer program when executed by the processor implements a step of a HARQ-ACK processing method on a network device side.

According to the embodiment of the invention, the reference PDCCH monitoring opportunity corresponding to the SPS PDSCH is determined, and the first DAI corresponding to the SPS PDSCH is determined based on the reference PDCCH monitoring opportunity. Because DAI is introduced to SPS PDSCH, the position of HARQ-ACK corresponding to SPS PDSCH in the dynamic codebook can be clearly determined. Therefore, the embodiment of the invention can incorporate the SPS PDSCH into a unified dynamic codebook framework, thereby improving the flexibility and expansibility of HARQ-ACK transmission corresponding to the SPS PDSCH.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.

FIG. 1 is a block diagram of a network system to which embodiments of the present invention are applicable;

FIG. 2 is a schematic diagram of a conventional dynamic codebook configuration;

fig. 3 is a diagram of a HARQ-ACK processing method according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of the dynamic codebook structure after the SPS PDSCH is incorporated;

fig. 5 is another HARQ-ACK processing method provided by an embodiment of the present invention;

fig. 6 is a block diagram of a terminal according to an embodiment of the present invention;

fig. 7 is a block diagram of a network device according to an embodiment of the present invention;

fig. 8 is a block diagram of another terminal according to an embodiment of the present invention;

fig. 9 is a block diagram of another network device according to an embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the use of "and/or" in the specification and claims means at least one of the connected objects, e.g., a and/or B, meaning that it includes a single a, a single B, and that there are three cases of a and B.

In embodiments of the invention, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

Embodiments of the present invention are described below with reference to the accompanying drawings. The HARQ-ACK processing method and the related equipment provided by the embodiment of the invention can be applied to a wireless communication system. The wireless communication system may be a 5G system, or an evolved long term evolution (Evolved Long Term Evolution, elet) system, or a subsequent evolved communication system.

Referring to fig. 1, fig. 1 is a block diagram of a network system to which an embodiment of the present invention is applicable, and as shown in fig. 1, the network system includes a terminal 11 and a network device 12, where the terminal 11 may be a user terminal or other terminal side device, for example: terminal-side devices such as a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer), a personal digital assistant (personal digital assistant, PDA for short), a mobile internet Device (Mobile Internet Device, MID) or a Wearable Device (weardable Device), it should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present invention. The network device 12 may be a 5G base station, or a later version of a base station, or a base station in other communication systems, or referred to as a node B, an evolved node B, or a transmitting/receiving Point (Transmission Reception Point, TRP), or an Access Point (AP), or other words in the field, and the network device is not limited to a specific technical word as long as the same technical effect is achieved. In addition, the network device 12 may be a Master Node (MN) or a Secondary Node (SN). It should be noted that, in the embodiment of the present invention, only a 5G base station is taken as an example, but the specific type of the network device is not limited.

For ease of understanding, some of the details relating to embodiments of the present invention are described below in connection with FIG. 2:

in fig. 2, A1 to A6 indicate PDCCH monitoring opportunities (PDCCH monitoring occasion) in which a certain serving cell has a PDSCH reception or SPS PDSCH release instruction associated with a downlink control information format (Downlink Control Information format, DCI format) 1_0/1_1; d1 to D6 represent PDSCH transmissions indicated or scheduled by a certain serving cell through DCI; u denotes PUCCH or codebook transmission carrying HARQ-ACK.

1. The reverse downlink control information (Fallback Downlink Control Information, fallback DCI) format or the non-reverse downlink control information (non-Fallback DCI) format of NR.

The uplink scheduling DCI and the downlink scheduling DCI in NR distinguish Fallback DCI formats and non-Fallback DCI formats, wherein the Fallback DCI formats are mainly introduced by simplifying scheduling indication information to ensure network coverage performance, the indication fields in the Fallback DCI formats are fewer, the starting or information indication of some expansion or optimization functions is limited, and the indication fields corresponding to the expansion, optimization or optional functions of the distinguishable terminal configuration are not generally considered to be contained; the non-Fallback DCI format is biased to ensure that the scheduling indication information is indicated in more detail, and some extended or optimized functions can be started as required, so that other indication domains are added on the basis of the indication domains in the Fallback DCI format, for example, corresponding indication domains are added for some extended, optimized or optional function indication information, the list of the indication domains contained in a single DCI and the corresponding bit number are related to the specific configuration of a certain terminal, and the bit cost is high.

2. NR or enhanced ultra-reliable low delay communication (enhanced Ultra Reliable Low Latency Communication, eURLLC).

SPS PDSCH (periodically initiated PDSCH transmissions after activating downlink SPS transmissions, which are transmitted based on a predefined manner without a corresponding DCI indication) transmissions are introduced in a communication system. For downlink SPS transmission, the network device ensures that, in a certain serving cell group configured for the terminal, at most only a single serving cell is configured with a semi-persistent scheduling configuration (SPS-Config) configuration item, the corresponding SPS PDSCH transmission interval is at least 10 ms, and the SPS-Config configuration item includes a parameter n1PUCCH-AN for indicating a PUCCH resource used when the UE transmits only the HARQ-ACK corresponding to the SPS PDSCH, where the PUCCH resource may carry 1-bit HARQ-ACK. For SPS PDSCH transmission ending in slot n, the terminal feeds back HARQ-ACK corresponding to this SPS PDSCH transmission in slot n+k, where k is determined by the PDSCH-to-HARQ-timing-indicator indication field in the DCI activating this SPS PDSCH transmission.

In order to shorten the transmission delay of service data as much as possible, it is proposed that a network device can configure multiple sets of SPS-Config configuration items that are effective simultaneously for a single UE (a certain BWP of a single serving cell can configure 8 sets at the same time at most), and the corresponding SPS PDSCH transmission interval can be shortened to a minimum of a single slot. At this time, when the terminal transmits only the HARQ-ACK corresponding to the SPS PDSCH, the number of HARQ-ACK bits is also correspondingly extended to a plurality of bits. For this purpose, the parameter n1PUCCH-AN may be extended in eURLLC to the parameter SPS-PUCCH-AN-List, to indicate a PUCCH resource List, where up to 4 PUCCH resources may be included, different PUCCH resources correspond to different bit number ranges, the bit number ranges corresponding to the PUCCH resources are adjacent to each other to form a single complete bit number range, and the threshold corresponding to the adjacent point, that is, the upper bound of the bit number range corresponding to the single PUCCH resource (which is added to the lower bound of the bit number range corresponding to the next PUCCH resource), may be given in a higher layer configuration, or may be a default value 1706. The terminal selects a certain PUCCH resource in the PUCCH resource list according to the HARQ-ACK bit number corresponding to only the SPS PDSCH that is actually required to be transmitted at a certain time, and the HARQ-ACK corresponding to the SPS PDSCH is carried when the HARQ-ACK bit number corresponding to the SPS PDSCH that does not include cyclic redundancy check code (Cyclic redundancy check, CRC) check bits falls within the bit number range of the PUCCH resource.

3. HARQ-ACK dynamic codebook for NR

When the UE organizes the HARQ-ACK bit sequence that needs to be reported at a certain feedback moment, the UE determines the correspondence between each PDSCH transmission and a certain bit/bits in the organized HARQ-ACK bit sequence based on a predefined rule and the scheduling of physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) transmissions on the single/multiple carriers that need to be reported at the feedback moment, which is called constructing a HARQ-ACK Codebook (Codebook).

When the release of the Semi-persistent scheduling (Semi-Persistent Scheduling, SPS) PDSCH is indicated by downlink control information (Downlink Control Information, DCI), the terminal is also required to acknowledge its reception using the HARQ-ACK bit to ensure that the understanding of whether the SPS PDSCH is in an active state remains consistent on both sides.

The HARQ-ACK Codebook includes: semi-static codebook (Type-1) and dynamic codebook (Type-2). The method comprises the steps of feeding back all possible DCI indications and PDSCH transmissions, wherein the former is mainly used for guaranteeing transmission reliability, and the feedback overhead is large; the latter only feeds back the actual DCI indication and PDSCH transmission, the feedback cost is small, and the transmission reliability is affected to a certain extent when the DCI missing detection situation is more common.

The dynamic codebook reserves HARQ-ACK feedback bits for each actually used DAI value by counting the downlink allocation index (Downlink Assignment Index, DAI) for the actually scheduled PDSCH transmission or SPS PDSCH release indication. If the terminal presumes that PDSCH allocation instructions or SPS PDSCH release instructions corresponding to some DAIs are not received through other detected DAIs, setting corresponding feedback bits as NACK; otherwise, setting the corresponding HARQ-ACK feedback bit according to the decoding result of the PDSCH transmission corresponding to each PDSCH allocation instruction, and setting the corresponding feedback bit as ACK for the detected SPS PDSCH release instruction.

The DAI is indicated by a limited bit number (a single DAI generally occupies 2 bits), and in order to expand the indication range, a modulo operation is introduced, that is, a sequential count is started from 1, and then a DAI value corresponding to a certain count value is obtained by modulo. The processing of DAI in downlink scheduling may refer to the following table.

The value of the counter DAI in DCI format 1_0 and the value of the counter DAI or total DAI in DAI DCI format 1_1

In the table above, the most significant bit (Most Significant Bit, MSB); least significant bits (Least Significant Bit, LSB); a Counter DAI (C-DAI); total DAI (Total DAI, T-DAI).

Y is the Number of { serving cell, PDCCH monitoring opportunity } pairs (Number of { serving cell, PDCCH monitoring occasion } -pair(s) in which PDSCH transmission(s) associated with PDCCH or PDCCH indicating SPS PDSCH release is present, dense asY) for which there is a PDSCH corresponding to the PDCCH, or there is a PDCCH indicating SPS PDSCH release, Y is not less than 1. As shown in fig. 2, in A1 to A6, the value of the arabic numeral is expressed as a Y value, for example, the Y value corresponding to A1 is 1, and the Y value corresponding to A2 is 2.

When the terminal is configured with only a single serving cell, the DAI counts one by one according to the time sequence indicated by the DCI for only a single carrier, which may be referred to as a C-DAI.

When the terminal configures a plurality of serving cells, in order to further increase reliability, a T-DAI is newly introduced for indicating the number of all DCI indications received up to the current time domain detection position, including all DCI indications received on each serving cell by the current time domain detection position, so that the value of the T-DAI is updated only when the time domain detection position changes.

When the T-DAI is combined with the C-DAI, the situation that the terminal and the network equipment understand inconsistent for the transmission of the DCI indication when the DCI indication on a certain service cell or a certain service cells is lost (as long as the DCI indications on all the service cells are not lost) at a certain time domain detection position can be effectively avoided.

The above-mentioned DAI (including C-DAI, and T-DAI when configuring a plurality of serving cells) count specifically adopts the following manner:

1. the active downlink BWP of all the serving cells configured for the terminal is traversed first, all PDCCH monitoring opportunities are gathered (PDCCH monitoring occasion) and arranged in ascending order according to the start time of their associated Search space set (Search space set), forming M ordered PDCCH detection opportunities, e.g. m=4 in fig. 2.

2. The C-DAI indicates that the accumulated number of { serving cells, PDCCH monitoring opportunities } pairs, of which the PDSCH transmission/SPS PDSCH release indications associated with DCI format 1_0/1_1 exist, is arranged in ascending order according to the index of the serving cell and is counted in ascending order according to the index M (0 is less than or equal to M < M) of the PDCCH monitoring opportunities until the current serving cell and the current PDCCH monitoring opportunities are reached. For example, in FIG. 2, the numbers marked in the PDCCH detection opportunities corresponding to A1-A6 may be considered as the values of the C-DAI prior to the modulo operation, which the PDCCH monitor would take into account.

3. When present (i.e., multiple serving cells are configured for the UE), the T-DAI indicates that up to the current PDCCH monitoring opportunity, there are { serving cells, PDCCH monitoring opportunity } pairs of PDSCH transmission or SPS PDSCH release indications associated with DCI format 1_0/1_1, including the number of { serving cells, PDCCH monitoring opportunity } pairs for which PDSCH transmission or SPS PDSCH release indications associated with DCI format 1_0/1_1 are present on each serving cell at the current PDCCH monitoring opportunity, and values are updated from PDCCH monitoring opportunity to PDCCH monitoring opportunity. For example, in fig. 2, the T-DAI of the PDCCH monitoring opportunity with m=0 is uniformly set to 3, the T-DAI of the PDCCH monitoring opportunity with m=1 is uniformly set to 4, the T-DAI of the PDCCH monitoring opportunity with m=2 is uniformly set to 6, and no effective scheduling exists in the PDCCH monitoring opportunity with m=3, so there is no value setting requirement of the T-DAI.

And (3) carrying out downlink SPS transmission, wherein the network side ensures that in a certain service cell group configured for the terminal, at most, only a single service cell is configured with an SPS-Config configuration item. Therefore, on the PUCCH or codebook transmission in a single uplink slot, at most, only the corresponding HARQ-ACK needs to be fed back for a single SPS PDSCH (based on the PDSCH-to-HARQ-timing-indicator indication field in DCI format 1_0/1_1 that activates SPS PDSCH transmission, and the transmission slot of a certain SPS PDSCH, when determining to point to the current uplink slot, the HARQ-ACK corresponding to the current SPS PDSCH is carried on the PUCCH or codebook transmission in the current uplink slot, and because SPS PDSCH transmission occurs periodically after being activated, the period is configurable to be 10 ms at minimum, at most, only a single SPS PDSCH transmission meets the above-mentioned pointing condition). When the HARQ-ACK of a single SPS PDSCH transmission needs to be carried on the PUCCH or codebook transmission in a certain uplink slot, 1 bit is added at the tail of the HARQ-ACK bit sequence determined based on the foregoing operation, to indicate SPS PDSCH HARQ-ACK.

4. HARQ-ACK dynamic codebook enhancement for NR-U

The enhancements introduced to the dynamic codebook mainly include the following:

explicit grouping is carried out on the dynamically scheduled PDSCH, and grouping corresponding to the scheduled PDSCH is indicated in the scheduling DCI; HARQ-ACK feedback corresponding to the same PDSCH packet is carried on the same PUCCH;

Counting C-DAI or T-DAI within a single PDSCH packet;

each PDSCH packet maintains a new feedback indication (New Feedback Indicator, NFI) indicating, by flipping, whether only new feedback is transmitted or feedback before retransmission is also required; if NFI is flipped, indicating that all feedback for the PDSCH packet before DCI with NFI flipped will be discarded, transmitting only the DCI and HARQ-ACK feedback for PDSCH scheduled for the PDSCH packet after DCI, if NFI is not flipped, all HARQ-ACK feedback for the PDSCH packet since the last NFI flip needs to be transmitted, i.e. the NFI value is the same HARQ-ACK feedback is valid; thus, for two feedback requests of the same PDSCH packet, the number of HARQ-ACK bits actually required to be transmitted may change;

a single DCI may request HARQ-ACK feedback of one to multiple PDSCH packets to be transmitted on the same PUCCH, typically, a single downlink scheduling DCI defaults to request HARQ-ACK feedback of a PDSCH packet corresponding to a PDSCH scheduled by itself, and the DCI may additionally trigger HARQ-ACK feedback of other PDSCH packets to be transmitted together on the PUCCH indicated by the DCI;

the maximum number of supported PDSCH packets is 2;

the terminal may indicate whether the enhanced dynamic codebook is supported through the capability information.

The SPS PDSCH is not considered separately by NR-U for HARQ-ACK dynamic codebook and dynamic codebook enhancements, and if the existing mechanism is still in use, the HARQ-ACK corresponding to SPS PDSCH cannot be retransmitted because any PDSCH packet is not included and can be retransmitted by triggering. The HARQ-ACK processing method according to the embodiment of the present invention is described below.

Referring to fig. 3, fig. 3 is a flowchart of a HARQ-ACK processing method according to an embodiment of the present invention, where the method is applied to a terminal, as shown in fig. 2, and includes the following steps:

step 301, determining a reference PDCCH monitoring opportunity corresponding to a SPS PDSCH of a semi-persistent scheduling physical downlink shared channel;

step 302, determining a first DAI corresponding to the SPS PDSCH according to the reference PDCCH monitor, where the first DAI is used to construct a dynamic codebook containing HARQ-ACKs corresponding to the SPS PDSCH.

In the embodiment of the present invention, the reference PDCCH monitoring opportunity may be understood as a virtual PDCCH monitoring opportunity, or may be understood as a PDCCH monitoring opportunity that the terminal does not need to detect in practice. In addition, the virtual PDCCH monitoring opportunity may also coincide with or correspond to the PDCCH monitoring opportunity actually detected by the terminal, and the virtual PDCCH monitoring opportunity may also coincide with or correspond to the PDCCH monitoring opportunity actually detected by the terminal may be understood as: the starting time of the virtual PDCCH monitoring opportunity is the same as the starting time of the PDCCH monitoring opportunity actually detected by the terminal.

Optionally, for each SPS PDSCH transmission, a corresponding reference PDCCH monitor may be determined, a first DAI corresponding to each SPS PDSCH may be determined based on each SPS PDSCH corresponding reference PDCCH monitor, and a position of HARQ-ACK corresponding to the SPS PDSCH in the dynamic codebook may be determined according to the first DAI, so that the dynamic codebook may be constructed or generated based on the first DAI. The determining the reference PDCCH monitoring opportunity corresponding to the SPS PDSCH may be understood as determining the reference PDCCH monitoring opportunity corresponding to one SPS PDSCH transmission.

It should be understood that the dynamic codebook containing the HARQ-ACK corresponding to the SPS PDSCH may include only the HARQ-ACK corresponding to the SPS PDSCH, and may also include the HARQ-ACK corresponding to the SPS PDSCH and other HARQ-ACKs, which are HARQ-ACKs corresponding to non-SPS PDSCH and HARQ-ACKs corresponding to the PDCCH for indicating SPS PDSCH release.

Optionally, the definition of the reference PDCCH monitoring opportunity may be set according to actual needs, for example, in an alternative embodiment, the reference PDCCH monitoring opportunity meets at least one of the following:

the time relation between the reference PDCCH monitoring opportunity and the SPS PDSCH is the same as the target time relation, wherein the target time relation is the time relation between the PDCCH monitoring opportunity of a first DCI and PDSCH transmission corresponding to the first DCI, and the first DCI is used for activating the SPS PDSCH;

the time offset between the starting time of the reference PDCCH monitor opportunity and the starting time of the first time slot is equal to a preset time offset;

the preset time offset is a time offset between a starting time of a PDCCH monitoring opportunity of the first DCI and a starting time of a second time slot, where the first time slot is a time slot where the reference PDCCH monitoring opportunity is located, and the second time slot is a time slot where the PDCCH monitoring opportunity of the first DCI is located.

In the embodiment of the present invention, the time relationship between the reference PDCCH monitoring opportunity and the SPS PDSCH is the same as the target time relationship, which can be understood as: the time relationship between the reference PDCCH listening opportunity and the SPS PDSCH follows the target time relationship. In other words, referring to the slot offset K0 between the PDCCH monitor opportunity and the SPS PDSCH, the slot offset K0 between the first DCI transmission slot and the transmission slot of the first DCI scheduled PDSCH is followed.

It should be understood that, when the SPS period is equal to the monitoring period of the PDCCH monitoring opportunity of the first DCI, the reference PDCCH monitoring opportunity determined based on this manner may be considered as the PDCCH monitoring opportunity of the first DCI, and when the two periods are unequal, the reference PDCCH monitoring opportunity may not correspond to a certain PDCCH monitoring opportunity actually required to be monitored by the terminal (i.e. is not any one of M PDCCH monitoring opportunities corresponding to the time slot in which the dynamic codebook is transmitted), and at this time, a virtual PDCCH monitoring opportunity may be considered as being added.

The time offset between the starting time of the reference PDCCH listening opportunity and the starting time of the first time slot is equal to a preset time offset can be understood as: and the time offset between the starting time of the PDCCH monitoring opportunity and the starting time of the first time slot is used, and the time offset between the starting time of the PDCCH monitoring opportunity of the first DCI and the starting time of the time slot where the PDCCH monitoring opportunity of the first DCI is positioned is used.

In another embodiment, the reference PDCCH listening opportunity satisfies any of the following:

the reference PDCCH monitoring opportunity is a first PDCCH monitoring opportunity in M PDCCH monitoring opportunities corresponding to a time slot where the dynamic codebook is transmitted;

The reference PDCCH monitoring opportunity is a virtual PDCCH monitoring opportunity meeting a preset condition.

Wherein, the first PDCCH listening opportunity includes any one of the following:

the first listening opportunity ordered according to the listening opportunity index;

the last listening opportunity ordered according to the listening opportunity index;

the protocol agreements or preset listening opportunity indexes configured by the network device correspond to the listening opportunities.

In the embodiment of the present invention, each PDCCH monitoring opportunity of one to multiple (which can be understood as the aforementioned M PDCCH monitoring opportunities) PDCCH monitoring opportunities corresponding to each dynamic codebook feedback slot may be correspondingly provided with a monitoring opportunity index, and optionally, the first monitoring opportunity may be understood as the first monitoring opportunity in the order of PDCCH monitoring opportunities from small to large or from large to small according to the monitoring index; the last listening opportunity may be understood as the last listening opportunity in the order of the PDCCH listening opportunities from small to large or from large to small in terms of the listening index. The size configuration of the monitoring index of the PDCCH monitoring opportunity may be determined according to the arrangement order of the starting moments of the respective PDCCH monitoring opportunities in the one to more PDCCH monitoring opportunities. Alternatively, the indexes of the PDCCH listening opportunities may be determined in ascending order according to the starting time of the PDCCH listening opportunities. Alternatively, the PDCCH listening opportunity index may be gradually incremented starting from 0. When the starting moments of two or more PDCCH listening opportunities coincide, it can be considered that the two or more PDCCH listening opportunities actually correspond to a single PDCCH listening opportunity, corresponding to a single unique PDCCH listening opportunity index.

The preset conditions include any one of the following:

the starting time of the virtual PDCCH monitoring opportunity is the same as the starting time of the SPS PDSCH;

the starting time of the virtual PDCCH monitoring opportunity is the same as the starting time of the time slot where the SPS PDSCH is positioned;

the starting time of the virtual PDCCH monitoring opportunity is the same as the starting time of a target time slot, wherein the target time slot is a time slot corresponding to N time slots which are forward offset by the time slot where the SPS PDSCH is positioned, and N is a positive integer.

The virtual PDCCH listening opportunity is a newly defined listening opportunity for the SPS PDSCH, and is not used for actually detecting the PDCCH. Optionally, the virtual PDCCH monitoring opportunity may coincide with or corresponds to an actual PDCCH monitoring opportunity, or may not coincide with or correspond to an actual PDCCH monitoring opportunity, which is not further limited herein.

Further, the N time slots may be time slot offset values corresponding to time-frequency resource allocation information indicated by the first DCI. In other words, in the embodiment of the present invention, the starting time of the slot obtained by shifting the slot in which the SPS PDSCH is transmitted forward by K0 is used as the starting time of the virtual PDCCH monitoring opportunity, where K0 is K0 corresponding to the time domain resource allocation information indicated by the first DCI (the K0 is denoted as N slots).

When the start time of the virtual PDCCH monitoring opportunity is the same as the start time of one of the M PDCCH monitoring opportunities (assuming that the index is M), the virtual PDCCH monitoring opportunity may be considered to directly correspond to the PDCCH monitoring opportunity M without adding a PDCCH monitoring opportunity, or the PDCCH monitoring opportunity may be considered to be added based on the M PDCCH monitoring opportunities.

Further, when the reference PDCCH monitoring opportunity satisfies that the time relationship between the reference PDCCH monitoring opportunity and the SPS PDSCH is the same as the target time relationship, or satisfies that the reference PDCCH monitoring opportunity is a virtual PDCCH monitoring opportunity satisfying a preset condition, when a virtual PDCCH monitoring opportunity is newly added, the PDCCH monitoring opportunity set after the virtual PDCCH monitoring opportunity is added needs to be considered in the DAI counting. For example, the set of PDCCH listening opportunities includes virtual PDCCH listening opportunities and other PDCCH listening opportunities, which may include PDCCH listening opportunities for scheduling the first PDSCH transmission corresponding DCI and PDCCH listening opportunities for instructing the SPS PDSCH to release the corresponding DCI.

In an optional embodiment, determining, according to the reference PDCCH listening opportunity, a first DAI corresponding to the SPS PDSCH includes:

Uniformly numbering the first information pair and the second information pair with DAI, and determining the first DAI;

the first information pair is an information pair corresponding to the SPS PDSCH, and the first information pair includes: a serving cell corresponding to the reference PDCCH monitoring opportunity and the reference PDCCH monitoring opportunity; the second information pair includes at least one of:

a first PDSCH transmission corresponding to a pair of information, the first PDSCH transmission being a PDCCH scheduled PDSCH transmission;

and indicating the information pair corresponding to the PDCCH released by the SPS PDSCH.

In the embodiment of the invention, unified DAI numbering of the first information pair and the second information pair can be understood as that the first information pair and the second information pair are counted uniformly to obtain a count Y value, and the corresponding DAI number is obtained after performing modulo operation on Y. The PDSCH transmission scheduled by the PDCCH may be understood as a PDSCH corresponding to the PDCCH, or may be understood as a PDSCH corresponding to the DCI, or may be understood as a PDSCH associated with or indicated by the DCI.

Alternatively, the first information pair may be expressed as { serving cell, reference PDCCH listening opportunity } pair, in other words, the first information pair includes identification information (for example, may be an index of the serving cell) identifying the indication serving cell, and identification information (for example, may be an index of the reference PDCCH listening opportunity) identifying the reference PDCCH listening opportunity. The second information pair may be expressed as { serving cell, PDCCH listening opportunity } pair. Compared with the dynamic codebook DAI counting or numbering scheme of the related art, after a { serving cell, reference PDCCH monitoring opportunity } pair corresponding to a certain SPS PDSCH, there is a PDSCH transmission corresponding to the PDCCH, or a { serving cell, PDCCH monitoring opportunity } pair for indicating the PDCCH released by the SPS PDSCH exists, the value of the corresponding C-DAI needs to be correspondingly adjusted so as to consider the number of all SPS PDSCH transmissions of the time slot in which the previous HARQ-ACK feedback points to the dynamic codebook transmission, and the number of the SPS PDSCH corresponding to the T-DAI corresponding to the reference PDCCH monitoring opportunity corresponding to the SPS PDSCH also needs to be considered.

It should be noted that, the serving cell corresponding to the reference PDCCH monitoring opportunity includes one of the following:

a serving cell corresponding to the PDCCH monitoring opportunity of the first DCI;

and the SPS PDSCH is located in a service cell.

Further, the rule for uniformly performing DAI numbering on the first information pair and the second information pair may be defined by various rules, which will be described in detail below.

For example, in an alternative embodiment, the unifying the first information pair and the second information pair to the DAI, and determining the first DAI includes:

when the reference PDCCH monitoring opportunity coincides with or corresponds to a PDCCH monitoring opportunity corresponding to a second PDSCH transmission, determining the first DAI according to a preset rule, wherein the second PDSCH transmission is one PDSCH transmission in the first PDSCH transmission;

and when the reference PDCCH monitoring opportunity is not coincident or corresponding to the PDCCH monitoring opportunity corresponding to the second PDSCH transmission, determining the first DAI according to the arrangement position corresponding to the starting time of the reference PDCCH monitoring opportunity.

In the embodiment of the present invention, the preset rule may be to sort DAIs according to the starting time of the PDSCH, or sort the DAIs according to the type of the PDCCH monitoring opportunity. Specifically, the preset rule may include any one of the following:

In the case where the starting time of the SPS PDSCH is located before the starting time of the second PDSCH transmission, the first DAI is numbered before the second DAI; in a case that the start time of the SPS PDSCH is located after the start time of the second PDSCH transmission, the first DAI is numbered after the second DAI, which is a DAI corresponding to the second PDSCH transmission;

and determining the sequence of numbering the first DAI and the second DAI according to the type of the PDCCH monitoring opportunity, wherein the second DAI is the DAI corresponding to the second PDSCH transmission.

The types of PDCCH listening opportunities in the embodiment include two types, type one: referring to PDCCH listening opportunities, type two: and the second information monitors the corresponding PDCCH. Specifically, the protocol may agree or the network device may be configured to perform DAI numbering on type one and then perform DAI numbering on type two, or perform DAI numbering on type two and then perform DAI numbering on type one.

Further, when one reference PDCCH monitor corresponds to a plurality of SPS PDSCH, each SPS PDSCH may be ordered according to a starting time corresponding to the SPS PDSCH. Specifically, when Q SPS PDSCH corresponding to the reference PDCCH monitor exists, the uniformly numbering the first information pair and the second information pair, and determining the first DAI further includes:

And determining the DAI numbering sequence corresponding to each SPS PDSCH in the Q SPS PDSCHs according to the sequence of the starting moments corresponding to the Q SPS PDSCHs, wherein Q is an integer larger than 1.

The Q SPS PDSCH may be understood as SPS PDSCH corresponding to different serving cells. In the embodiment of the invention, the dynamic codebook during the downlink SPS configuration with multiple effective service cell configuration items can be flexibly supported. For example, the Q SPS PDSCHs include a first SPS PDSCH and a second SPS PDSCH, where a reference PDCCH monitor opportunity corresponding to the first SPS PDSCH is the same as a start time of a reference PDCCH monitor opportunity corresponding to the second SPS PDSCH. At this time, if the start time of the first SPS PDSCH is located before the start time of the second SPS PDSCH, the DAI corresponding to the first SPS PDSCH is numbered before the DAI corresponding to the first SPS PDSCH.

In addition, when the SPS PDSCH is DAI numbered (i.e., its corresponding DAI is determined), the latest SPS PDSCH may be determined based on some manner as follows:

the HARQ-ACK feedback time slot corresponding to the latest SPS PDSCH (namely, the HARQ-ACK feedback time slot n+k determined based on the time slot n where the SPS PDSCH transmission is positioned and the HARQ-ACK feedback time slot offset k) is not later than the dynamic codebook transmission time slot;

The time interval between the end time of the latest SPS PDSCH and the start time of the PUCCH or physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) of the dynamic codebook transmission is not less than a preset value.

In other words, in the embodiment of the present invention, the HARQ-ACK feedback slot corresponding to the SPS PDSCH is located before the starting time of the dynamic codebook transmission slot;

or the HARQ-ACK feedback time slot corresponding to the SPS PDSCH and the dynamic codebook transmission time slot are the same time slot;

or, the distance between the ending time of the SPS PDSCH and the starting time of a target resource is greater than or equal to a second preset value, where the target resource is a PUCCH or PUSCH used for transmitting the dynamic codebook.

The preset value is determined by protocol convention, network equipment configuration or according to terminal capability.

Furthermore, in the embodiment of the present invention, feedback of HARQ-ACK corresponding to SPS PDSCH may also be applied to dynamic codebook enhancement, and in particular, when applied to dynamic codebook enhancement, the following definitions may also be set:

in an alternative embodiment, the SPS PDSCH satisfies any of the following in the case where the dynamic codebook is a dynamic codebook enhancement:

The SPS PDSCH is attributed to PDSCH packet 0;

in the case where the SPS PDSCH is activated by non-fallback DCI, the SPS PDSCH is assigned to a PDSCH packet indicated by the non-fallback DCI, and in the case where the SPS PDSCH is activated by fallback DCI, the SPS PDSCH is assigned to a PDSCH packet 0.

In this embodiment, the PDSCH packet 0 may be understood as a default PDSCH packet.

In another alternative embodiment, the SPS PDSCH satisfies any of the following in the case where the dynamic codebook is a dynamic codebook enhancement:

rule 1, NFI corresponding to the SPS PDSCH is NFI in a second DCI, where the second DCI is DCI corresponding to a third DAI, the third DAI is a DAI nearest to the first DAI, the third DAI is numbered before the first DAI, and the third PDSCH is a PDSCH of the SPS PDSCH-belonging PDSCH packet;

rule 2, in the absence of a second DCI, an NFI corresponding to the SPS PDSCH is a preset default value, and it is assumed that rollover has occurred, where the second DCI is non-fallback DCI for scheduling a third PDSCH, and the third PDSCH is a PDSCH of a PDSCH packet to which the SPS PDSCH belongs;

rule 3, when the HARQ-ACK feedback time slot corresponding to the SPS PDSCH is the same as the HARQ-ACK feedback time slot indicated by the L non-fallback DCIs, the NFI corresponding to the SPS PDSCH is an NFI in a third DCI, where the third DCI is the latest non-fallback DCI of the L non-fallback DCIs, L is a positive integer, and the L non-fallback DCIs used for scheduling PDSCH in the PDSCH packet attributed to the SPS PDSCH;

Rule 4, when the HARQ-ACK feedback time slot corresponding to the SPS PDSCH is the same as the HARQ-ACK feedback time slot indicated by the L non-fallback DCIs, the NFI corresponding to the SPS PDSCH is the NFI of a fourth DCI among the L non-fallback DCIs, the DAI corresponding to the fourth DCI is the DAI closest to the first DAI among the DAIs corresponding to the L non-fallback DCIs, and the DAI corresponding to the fourth DCI is numbered before the first DAI;

rule 5, when the HARQ-ACK feedback time slot corresponding to the SPS PDSCH is different from the HARQ-ACK feedback time slot indicated by each non-fallback DCI, the NFI corresponding to the SPS PDSCH is flipped with respect to the NFI corresponding to the fourth PDSCH, each non-fallback DCI is used for scheduling the PDSCH in the PDSCH packet attributed to the SPS PDSCH, the fourth PDSCH is the non-SPS PDSCH closest to the SPS PDSCH in the PDSCH packet attributed to the SPS PDSCH, and the start time of the fourth PDSCH is before the start time of the SPS PDSCH.

The above-described rule 1 and rule 2 can be understood as: the NFI of the SPS PDSCH is used along, NFI in the latest non-fallback DCI (here, the latest time point of the start of the PDCCH monitoring opportunity a corresponding to the non-fallback DCI is not later than the starting time point of the reference PDCCH monitoring opportunity of the SPS PDSCH) of at least one non-fallback DCI (the at least one non-fallback DCI is used for scheduling the PDSCH of the PDSCH packet to which the SPS PDSCH belongs), when the starting time points of the two non-fallback DCIs the same, the index of the serving cell corresponding to the PDCCH monitoring opportunity a is smaller than the index of the serving cell corresponding to the reference PDCCH monitoring opportunity, and the HARQ-ACK feedback time slot a corresponding to the latest non-fallback DCI and the HARQ-ACK feedback time slot b corresponding to the SPS PDSCH may be the same or different, and the instant time slot a may be a time slot earlier than the time slot b). Alternatively, if there is no such recent non-fallback DCI, then NFI is assumed to be a default value, e.g., 0, and NFI is considered to have flipped.

For the rule 3, for example, the L non-fallback DCI includes a first non-fallback DCI, a second non-fallback DCI, and a third non-fallback DCI, where if the DAI numbers corresponding to the first non-fallback DCI, the second non-fallback DCI, the third non-fallback DCI, and the first DCI are in the following order: the first non-fallback DCI, the second non-fallback DCI, the first DCI and the third non-fallback DCI, wherein the NFI corresponding to the SPS PDSCH is the NFI of the second non-fallback DCI. Optionally, a DAI number corresponding to the fallback DCI may be included between a DAI number corresponding to the first non-fallback DCI and a DAI corresponding to the second non-fallback DCI, a DAI number corresponding to the fallback DCI may be included between a DAI number corresponding to the second non-fallback DCI and a DAI corresponding to the first DCI, and a DAI number corresponding to the fallback DCI may be included between a DAI number corresponding to the first DCI and a DAI corresponding to the third non-fallback DCI.

For the rule 4, for example, the L non-fallback DCI includes a first non-fallback DCI, a second non-fallback DCI, and a third non-fallback DCI, where if the DAI numbers corresponding to the first non-fallback DCI, the second non-fallback DCI, the third non-fallback DCI, and the first DCI are in the following order: a first non-fallback DCI, a second non-fallback DCI, a first DCI, a third non-fallback DCI. Optionally, a DAI number corresponding to the fallback DCI may be included between a DAI number corresponding to the first non-fallback DCI and a DAI corresponding to the second non-fallback DCI, a DAI number corresponding to the fallback DCI may be included between a DAI number corresponding to the second non-fallback DCI and a DAI corresponding to the first DCI, and a DAI number corresponding to the fallback DCI may be included between a DAI number corresponding to the first DCI and a DAI corresponding to the third non-fallback DCI. Specifically, the number of DAI numbers corresponding to the fallback DCI may be included between the DAI number corresponding to the second non-fallback DCI and the DAI corresponding to the first DCI, and the number of DAI numbers corresponding to the fallback DCI may be included between the DAI number corresponding to the first DCI and the DAI corresponding to the third non-fallback DCI to determine the fourth DCI. For example, the number of DAI numbers corresponding to the second non-fallback DCI and the DAI corresponding to the first DCI may include 0, and the number of DAI numbers corresponding to the first DCI and the DAI corresponding to the third non-fallback DCI may include 1, where the fourth DCI may be determined to be the second non-fallback DCI. In other words, the NFI corresponding to the SPS PDSCH is the NFI of the second non-fallback DCI.

Note that, in rule 4, the fourth DCI may be further understood as a non-fallback DCI corresponding to a second PDCCH monitoring opportunity of the L non-fallback DCIs, where a duration of an interval between a start time of the second PDCCH monitoring opportunity and a start time of the reference PDCCH monitoring opportunity is smaller than a duration of an interval between a start time of a third PDCCH monitoring opportunity and the reference PDCCH monitoring opportunity, where the third PDCCH monitoring opportunity is a PDCCH monitoring opportunity except for the second PDCCH monitoring opportunity in the PDCCH monitoring opportunities corresponding to the L non-fallback DCIs used for scheduling a PDSCH in a PDSCH packet of the SPS PDSCH.

With respect to rule 5 above, it can be appreciated that a terminal can assume that the NFI of the SPS PDSCH always toggles relative to the NFI of the PDSCH packet to which it belongs.

the PDSCH packet triggering indication corresponding to the SPS PDSCH is an indication in a fifth DCI, where the fifth DCI is a DCI corresponding to a fourth DAI, the fourth DAI is a DAI closest to the first DAI among DAIs corresponding to non-fallback DCI for scheduling a third PDSCH, and the third PDSCH is a non-SPS PDSCH of any PDSCH packet;

And in the case that the HARQ-ACK included in the same codebook transmission does not correspond to non-fallback DCI, the PDSCH packet triggering indication is used for indicating to trigger only the PDSCH packet to which the SPS PDSCH belongs.

In the embodiment of the present invention, the PDSCH packet triggering indication of the SPS PDSCH may follow the indication in the latest non-fallback DCI (i.e., the fourth DAI) in the same PUCCH or codebook transmission, and default to trigger only the PDSCH packet corresponding to the SPS PDSCH if the latest non-fallback DCI does not exist. In this embodiment, the fourth DAI may be understood as any one of the following two requirements:

the first requirement is that the starting time of the PDCCH monitoring opportunity a corresponding to the fourth DAI is not later than the starting time of the reference PDCCH monitoring opportunity of the SPS PDSCH; when the starting time of the two is the same, the index of the service cell corresponding to the PDCCH monitoring opportunity a is smaller than the index of the service cell corresponding to the reference PDCCH monitoring opportunity;

in the second requirement, the absolute value of the time offset between the starting time of the PDCCH monitoring opportunity corresponding to the fourth DAI and the starting time of the reference PDCCH monitoring opportunity of the SPS PDSCH is the smallest, and the starting time of the PDCCH monitoring opportunity is not required to be necessarily before the starting time of the PDCCH monitoring opportunity.

Further, after the determining, according to the reference PDCCH monitoring opportunity, the first DAI corresponding to the SPS PDSCH, the method further includes:

generating a dynamic codebook containing HARQ-ACK corresponding to the SPS PDSCH according to DAI and target information corresponding to each PDSCH in the PDSCH group;

the target information includes NFI and PDSCH packet triggering indication corresponding to the last first transmission corresponding to HARQ-ACK carried on the same codebook transmission, where the first transmission is DCI transmission or SPS PDSCH transmission, and the NFI and PDSCH packet triggering indication corresponding to the first transmission is any one of the following:

NFI and PDSCH packet trigger indication indicated in non-fallback DCI;

the NFI and PDSCH grouping trigger indication corresponding to the back DCI;

NFI and PDSCH packet trigger indication corresponding to SPS PDSCH.

In this embodiment, the NFI and PDSCH packet triggering indication corresponding to the SPS PDSCH refer to the NFI and packet triggering indication used by the SPS PDSCH, and specifically, the determination manner of the NFI and packet triggering indication corresponding to the SPS PDSCH may refer to the description in the foregoing embodiment, which is not repeated herein. Specifically, when the first transmission is a transmission scheduled by the non-fallback DCI, the target information includes an NFI and a PDSCH packet triggering indication indicated in the non-fallback DCI; when the first transmission is the transmission scheduled by the back-off DCI, the target information comprises NFI and PDSCH grouping triggering indication corresponding to the back-off DCI; when the first transmission is SPS PDSCH transmission, then the target information includes an NFI and PDSCH packet trigger indication corresponding to the SPS PDSCH.

In order to better understand the implementation of the present invention, a detailed description is given below of a specific implementation procedure of the terminal.

The first step: for each SPS PDSCH transmission its corresponding reference PDCCH monitoring occasion is determined, for the time of occurrence (or start time) of reference PDCCH monitoring occasion, it may be determined in some manner as follows:

mode 1: referring to the relative time relationship between PDCCH monitoring occasion and SPS PDSCH, the relative time relationship between PDCCH monitoring occasion (assumed to be PDCCH monitoring occasion x) where the active DCI is transmitted and the corresponding PDSCH transmission (i.e., the PDSCH transmission scheduled by the active DCI) is followed (i.e., the slot offset K0 between the scheduling DCI transmission slot and the PDSCH transmission slot is followed). The time offset between the start time of the reference PDCCH monitoring occasion and the start time of the located slot follows the time offset between the start time of PDCCH monitoring occasion x and the start time of the located slot. When the SPS period is equal to the monitoring period of PDCCH monitoring occasion x, the reference PDCCH monitoring occasion determined based on this mode 1 may be considered as PDCCH monitoring occasion x, and when the two periods are unequal, the reference PDCCH monitoring occasion may not correspond to a certain PDCCH monitoring occasion actually required to be monitored by the UE (i.e. is not any of M PDCCH monitoring occasion corresponding to the time slot in which the dynamic codebook is transmitted), and may be considered as a virtual PDCCH monitoring occasion is added.

Mode 2: reference PDCCH monitoring occasion is any one of M PDCCH monitoring occasion corresponding to a slot in which a dynamic codebook transmission is located, and one of the following modes 2-1 to 2-3 (specifically, may be specified by a protocol or configured by a higher layer) may be considered. Wherein,,

mode 2-1 is the first PDCCH monitoring occasion.

Mode 2-2 is the last PDCCH monitoring occasion.

Ways 2-3 are PDCCH monitoring occasion corresponding to protocol specifications or indexes of network device configurations.

Mode 3: reference PDCCH monitoring occasion is a certain virtual PDCCH monitoring occasion newly defined for SPS PDSCH, which does not necessarily correspond to one of M PDCCH monitoring occasion to be actually detected by the UE, and may be considered in some manner as follows:

the start time of the virtual PDCCH monitoring occasion is the same as the start time of SPS PDSCH transmission;

the starting time of the virtual PDCCH monitoring occasion is the same as the starting time of the time slot where the SPS PDSCH transmission is located;

the starting time of the time slot obtained by shifting the time slot of the SPS PDSCH transmission forward by K0 is taken as the starting time of the virtual PDCCH monitoring occasion, wherein K0 is K0 corresponding to the time domain resource allocation information indicated by the latest activated DCI.

When the start time of the virtual PDCCH monitoring occasion is the same as the start time of one of M PDCCH monitoring occasion (assuming that the index is M), it may be considered that the virtual PDCCH monitoring occasion directly corresponds to the virtual PDCCH monitoring occasion M without newly adding PDCCH monitoring occasion, or it may be considered that PDCCH monitoring occasion is newly added on the basis of M PDCCH monitoring occasion.

For

modes

1 and 3 described above, when virtual PDCCH monitoring occasion is newly added, the DAI count in the second step needs to consider PDCCH monitoring occasion sets after the element is newly added.

Alternatively, for the serving cell (serving cell) corresponding to the reference PDCCH monitoring occasion determined for each SPS PDSCH transmission, the following may be employed:

the corresponding serving cell is the serving cell corresponding to PDCCH monitoring occasion (namely PDCCH monitoring occasion x) of the SPS activation DCI, namely the serving cell for transmitting the activation DCI;

the corresponding serving cell is the serving cell where the SPS PDSCH transmission is located.

And a second step of: based on the reference PDCCH monitoring occasion to which the SPS PDSCH corresponds, its corresponding DAI is determined.

In this embodiment, the { serving cell, reference PDCCH monitoring occasion } corresponding to the SPS PDSCH performs DAI counting uniformly as other { serving cell, PDCCH monitoring occasion } where there is a PDSCH transmission corresponding to the PDCCH or a PDCCH indicating the release of the SPS PDSCH. With respect to the dynamic codebook DAI counting or numbering scheme of the related art, after a { serving cell, reference PDCCH monitoring occasion } pair corresponding to an SPS PDSCH, there is a PDSCH transmission corresponding to a PDCCH, or a { serving cell, PDCCH monitoring occasion } pair for indicating a PDCCH released by the SPS PDSCH, the value of the corresponding C-DAI needs to be adjusted accordingly to consider all SPS PDSCH transmission numbers of slots in which HARQ-ACK feedback before it points to the dynamic codebook transmission, and the T-DAI corresponding to the reference PDCCH listening opportunity corresponding to the SPS PDSCH needs to consider also the SPS PDSCH numbers corresponding to it.

When considering the above, a single PDCCH monitoring occasion of a single serving cell may correspond to one to a plurality of DAIs (in the related art, a single PDCCH monitoring occasion corresponding to a single serving cell may correspond to a single DAI at most, that is, only when there is a PDSCH transmission corresponding to a PDCCH or a PDCCH indicating release of an SPS PDSCH exists at PDCCH monotoring occasion; after considering an SPS PDSCH, at most, two DAIs may correspond to another DAI for a newly added SPS PDSCH), at this time, when determining a DAI value corresponding to a single PDCCH monitoring occasion of a single serving cell (the target object is a PDSCH transmission corresponding to a PDCCH, a PDCCH indicating release of an SPS PDSCH, or an SPS PDSCH), the following manner may be adopted:

the DAI sequencing is carried out according to the starting time of the PDSCH, namely the PDSCH with earlier starting time is firstly numbered; when the SPS PDSCH release is indicated, it may be considered by assuming the starting time of the corresponding SPS PDSCH when not released yet; it is assumed that there is no more than one PDSCH with the same starting time for a single serving cell.

DAI ordering is by type PDCCH monitoring occasion. Currently PDCCH monitoring occasion types consider two types: type one, PDCCH monitoring occasion, where PDCCH is actually transmitted; type two, reference PDCCH monitoring occasion for SPS PDSCH. It may be agreed or configured to number the DAI for type one and then the DAI for type two, or to number the DAI for type two and then the DAI for type one.

the time interval between the end time of the latest SPS PDSCH and the PUCCH/PUSCH start time of the dynamic codebook transmission is not less than a preset value.

An example of a numbering scheme considering DAI after SPS PDSCH is shown in fig. 4, where A1-A4, A6, and A7 represent that a certain serving cell has PDCCH listening opportunities for PDSCH reception or SPS PDSCH release indication associated with DCI format 1_0/1_1; a5 and A8 represent reference PDCCH monitoring opportunities corresponding to SPS PDSCH of a certain service cell; d1 to D4, D6 and D7 represent PDSCH transmissions indicated by DCI for a certain serving cell; d5 and D8 denote SPS PDSCH transmissions indicating a certain serving cell. U denotes PUCCH or codebook transmission carrying HARQ-ACK. In the embodiment of the present invention, when the DAI encoding is performed on the PDSCH transmissions (D1-D8) corresponding to each listening opportunity (A1-A8), the arabic numerals in A1-A8 indicate that the Y value of the DAI encoding is determined, for example, the Y value of A1 is 1, and the Y value of A8 is 8.

Further, for dynamic codebook enhancement of NR-U, the following rules may be introduced for SPS PDSCH:

rule 1, SPS PDSCH is uniformly attributed to PDSCH packet 0, or to PDSCH packet indicated in Non-Fallback DCI when SPS PDSCH transmission is activated by this Non-Fallback DCI, or to default packet, PDSCH packet 0, when SPS PDSCH transmission is activated by Fallback DCI;

rule 2, NFI of SPS PDSCH follows NFI in the most recent Non-fallback DCI of PDSCH belonging to the PDSCH packet to which it belongs (here, the most recent start time of PDCCH monitoring occasion a corresponding to this Non-fallback DCI is no later than the start time of reference PDCCH monitoring occasion b of SPS PDSCH; when the start times of both are the same, index of the serving cell corresponding to PDCCH monitoring occasion a is less than index of the serving cell corresponding to PDCCH monitoring occasion b; HARQ-ACK feedback slot a corresponding to this Non-fallback DCI is not required to be the same as HARQ-ACK feedback slot b corresponding to SPS PDSCH, i.e. slot a may be an earlier slot than slot b), if this most recent Non-fallback DCI is not present, NFI is assumed to be a default value, e.g. 0, and it is assumed that a rollover has occurred;

Or,

the NFI of SPS PDSCH uses the NFI indicated in Non-fallback DCI corresponding to the same HARQ-ACK feedback time slot; when there are a plurality of such Non-fallback DCIs, it is considered that the NFI indicated in the latest Non-fallback DCI, or the NFI indicated in the latest Non-fallback DCI (here, the latest indicates that the absolute value of the time offset between the start time of PDCCH monitoring occasion a corresponding to this Non-fallback DCI and the start time of reference PDCCH monitoring occasion b of the SPS PDSCH is minimum, it is not required that the start time of PDCCH monitoring occasion a is necessarily before the start time of PDCCH monitoring occasion b); when there is no such Non-fallback DCI, it may be assumed that the NFI of SPS PDSCH always toggles relative to the NFI of the PDSCH packet to which it belongs.

Rule 3, the PDSCH packet triggering indication of the SPS PDSCH follows the indication in the most recent Non-fallback DCI in the same PUCCH or codebook transmission, and defaults to triggering only the PDSCH packet corresponding to the SPS PDSCH if the most recent Non-fallback DCI does not exist.

Among them, the recent one can adopt either of the following two requirements:

the first requirement that the start time of PDCCH monitoring occasion a corresponding to the Non-fallback DCI is no later than the start time of reference PDCCH monitoring occasion b of SPS PDSCH; when the starting time of the two is the same, the index of the serving cell corresponding to PDCCH monitoring occasion a is smaller than the index of the serving cell corresponding to PDCCH monitoring occasion b;

In the second requirement, the absolute value of the time offset between the start time of PDCCH monitoring occasion a corresponding to the Non-fallback DCI and the start time of reference PDCCH monitoring occasion b of the SPS PDSCH is the smallest, and it is not required that the start time of PDCCH monitoring occasion a is necessarily before the start time of PDCCH monitoring occasion b.

After applying the predefined rules described above, the UE may organize the HARQ-ACK enhanced dynamic codebook based on:

the terminal constructs an HARQ-ACK codebook based on an NFI and PDSCH packet trigger indication corresponding to the last first transmission corresponding to the HARQ-ACK carried on the same PUCCH or codebook transmission, wherein the first transmission is a DCI transmission or an SPS PDSCH transmission, and the NFI and PDSCH packet trigger indication corresponding to the first transmission is any one of the following:

NFI and PDSCH packet trigger indication indicated in non-fallback DCI;

the NFI and PDSCH grouping trigger indication corresponding to the back DCI;

NFI and PDSCH packet trigger indication corresponding to SPS PDSCH.

The embodiment of the invention completely brings the SPS PDSCH into the dynamic codebook and the enhanced framework thereof so as to unify and simplify the implementation rule, support SPS PDSCH HARQ-ACK retransmission based on PDSCH grouping in NR-U, and flexibly support the dynamic codebook and enhanced operation when a plurality of service cells are configured to simultaneously take effect in downlink SPS configuration.

Referring to fig. 5, fig. 5 is a flowchart of another HARQ-ACK provided in an embodiment of the present invention, where the method is applied to a network device, as shown in fig. 5, and includes the following steps:

step 501, determining a reference PDCCH monitoring opportunity corresponding to a SPS PDSCH of a semi-persistent scheduling physical downlink shared channel;

step 502, determining a first DAI corresponding to the SPS PDSCH according to the reference PDCCH monitor, where the first DAI is used to parse a dynamic codebook containing HARQ-ACKs corresponding to the SPS PDSCH.

Optionally, the reference PDCCH listening opportunity satisfies at least one of:

Optionally, the reference PDCCH listening opportunity satisfies any one of the following:

Optionally, the first PDCCH listening opportunity includes any one of the following:

Optionally, the preset condition includes any one of the following:

Optionally, the N time slots are time slot offset values corresponding to time-frequency resource allocation information indicated by the first DCI.

Optionally, the determining, according to the reference PDCCH monitoring opportunity, the first DAI corresponding to the SPS PDSCH includes:

Optionally, the serving cell corresponding to the reference PDCCH monitoring opportunity includes one of the following:

and the SPS PDSCH is located in a service cell.

Optionally, the uniformly numbering the first information pair and the second information pair, and determining the first DAI includes:

Optionally, the preset rule includes any one of the following:

Optionally, in the case that Q SPS PDSCH corresponding to the reference PDCCH monitoring opportunity exists, the uniformly numbering the first information pair and the second information pair, and determining the first DAI further includes:

Optionally, the HARQ-ACK feedback time slot corresponding to the SPS PDSCH is located before the starting time of the dynamic codebook transmission time slot;

or, the distance between the end time of the SPS PDSCH and the start time of a target resource is greater than or equal to a preset value, where the target resource is a PUCCH or PUSCH used for transmitting the dynamic codebook.

Optionally, the preset value is determined by protocol conventions, network equipment configuration or according to terminal capabilities.

Optionally, in the case that the dynamic codebook is a dynamic codebook enhancement, the SPS PDSCH satisfies any one of the following:

the SPS PDSCH is attributed to PDSCH packet 0;

the NFI corresponding to the SPS PDSCH is an NFI in a second DCI, the second DCI is a DCI corresponding to a third DAI, among non-fallback DCIs used for scheduling a third PDSCH, the third DAI is a DAI nearest to the first DAI and is numbered before the first DAI, and the third PDSCH is a PDSCH of the SPS PDSCH-belonging PDSCH packet;

If the second DCI does not exist, the NFI corresponding to the SPS PDSCH is a preset default value, and the second DCI is non-fallback DCI used for scheduling a third PDSCH, wherein the third PDSCH is a PDSCH of a PDSCH packet to which the SPS PDSCH belongs, and the second DCI is supposed to be overturned;

when the HARQ-ACK feedback time slot corresponding to the SPS PDSCH is the same as the HARQ-ACK feedback time slot indicated by the L non-fallback DCIs, the NFI corresponding to the SPS PDSCH is an NFI in a third DCI, the third DCI is the latest non-fallback DCI of the L non-fallback DCIs, L is a positive integer, and the L non-fallback DCIs is used for scheduling PDSCH in the home PDSCH packet of the SPS PDSCH;

when the HARQ-ACK feedback time slot corresponding to the SPS PDSCH is the same as the HARQ-ACK feedback time slot indicated by the L non-fallback DCIs, the NFI corresponding to the SPS PDSCH is the NFI of a fourth DCI among the L non-fallback DCIs, the DAI corresponding to the fourth DCI is the DAI closest to the first DAI among the DAIs corresponding to the L non-fallback DCIs, and the DAI corresponding to the fourth DCI is numbered before the first DAI;

and under the condition that the HARQ-ACK feedback time slot corresponding to the SPS PDSCH is different from the HARQ-ACK feedback time slot indicated by each non-fallback DCI, the NFI corresponding to the SPS PDSCH is overturned relative to the NFI corresponding to a fourth PDSCH, each non-fallback DCI is used for scheduling the PDSCH in the belonging PDSCH packet of the SPS PDSCH, the fourth PDSCH is the non-SPS PDSCH closest to the SPS PDSCH in the PDSCH packet of the SPS PDSCH, and the starting time of the fourth PDSCH is positioned before the starting time of the SPS PDSCH.

the PDSCH packet triggering indication corresponding to the SPS PDSCH is an indication in a sixth DCI, where the sixth DCI is a DCI corresponding to a fourth DAI, where the fourth DAI is a DAI corresponding to a non-fallback DCI for scheduling a third PDSCH, and the third PDSCH is a non-SPS PDSCH of any PDSCH packet;

Optionally, after the determining, according to the reference PDCCH monitoring opportunity, the first DAI corresponding to the SPS PDSCH, the method further includes:

receiving a dynamic codebook containing HARQ-ACK corresponding to the SPS PDSCH;

analyzing the dynamic codebook according to DAI and target information corresponding to each PDSCH in the PDSCH group;

NFI and PDSCH packet trigger indication indicated in non-fallback DCI;

the NFI and PDSCH grouping trigger indication corresponding to the back DCI;

NFI and PDSCH packet trigger indication corresponding to SPS PDSCH.

It should be noted that, in this embodiment, as a implementation manner of the network device corresponding to the embodiment shown in fig. 3, a specific implementation manner of the network device may refer to the description related to the embodiment shown in fig. 3, and achieve the same beneficial effects, so that in order to avoid repeated description, a description is omitted here.

Referring to fig. 6, fig. 6 is a block diagram of a terminal according to an embodiment of the present invention, and as shown in fig. 6, a terminal 600 includes:

a first determining module 601, configured to determine a reference PDCCH monitoring opportunity corresponding to a SPS PDSCH of a semi-persistent scheduling physical downlink shared channel;

a second determining module 602, configured to determine, according to the reference PDCCH listening opportunity, a first DAI corresponding to the SPS PDSCH, where the first DAI is configured to construct a dynamic codebook including HARQ-ACKs corresponding to the SPS PDSCH.

and determining a first DAI corresponding to the SPS PDSCH according to the reference PDCCH monitoring opportunity, wherein the first DAI is used for constructing a dynamic codebook containing HARQ-ACK corresponding to the SPS PDSCH.

Optionally, the preset condition includes any one of the following:

Optionally, the second determining module 602 is specifically configured to uniformly number the first information pair and the second information pair to determine the first DAI;

and the SPS PDSCH is located in a service cell.

Optionally, the second determining module 602 is specifically configured to perform the following operations:

Optionally, the preset rule includes any one of the following:

Optionally, in the case that Q SPS PDSCHs corresponding to the reference PDCCH monitoring opportunities exist, the second determining module 602 is further configured to determine, according to the sequence of start moments corresponding to the Q SPS PDSCHs, a DAI number sequence corresponding to each SPS PDSCH in the Q SPS PDSCHs, where Q is an integer greater than 1.

The SPS PDSCH is attributed to PDSCH packet 0;

Optionally, the terminal 600 further includes:

the codebook generation module is used for generating a dynamic codebook containing HARQ-ACK corresponding to the SPS PDSCH according to DAI and target information corresponding to each PDSCH in the PDSCH group;

NFI and PDSCH packet trigger indication indicated in non-fallback DCI;

the NFI and PDSCH grouping trigger indication corresponding to the back DCI;

NFI and PDSCH packet trigger indication corresponding to SPS PDSCH.

The terminal provided by the embodiment of the present invention can implement each process implemented by the terminal in the method embodiment of fig. 3, and in order to avoid repetition, a description is omitted here.

Referring to fig. 7, fig. 7 is a block diagram of a network device according to an embodiment of the present invention, as shown in fig. 7, a network device 700 includes:

A third determining module 701, configured to determine a reference PDCCH monitoring opportunity corresponding to a SPS PDSCH of the semi-persistent scheduling physical downlink shared channel;

a fourth determining module 702 determines, according to the reference PDCCH monitoring opportunity, a first DAI corresponding to the SPS PDSCH, where the first DAI is used to parse a dynamic codebook containing HARQ-ACKs corresponding to the SPS PDSCH.

Optionally, the preset condition includes any one of the following:

Optionally, the fourth determining module 702 is specifically configured to: uniformly numbering the first information pair and the second information pair with DAI, and determining the first DAI;

and the SPS PDSCH is located in a service cell.

Optionally, the fourth determining module 702 is specifically configured to perform the following operations:

Optionally, the preset rule includes any one of the following:

Optionally, in the case that Q SPS PDSCH corresponding to the reference PDCCH listening opportunity exists, the fourth determining module 702 is further configured to: and determining the DAI numbering sequence corresponding to each SPS PDSCH in the Q SPS PDSCHs according to the sequence of the starting moments corresponding to the Q SPS PDSCHs, wherein Q is an integer larger than 1.

the SPS PDSCH is attributed to PDSCH packet 0;

Optionally, the network device further includes:

a receiving module, configured to receive a dynamic codebook including HARQ-ACKs corresponding to the SPS PDSCH;

the decoding module is used for analyzing the dynamic codebook according to the DAI corresponding to each PDSCH in the PDSCH group and the target information;

NFI and PDSCH packet trigger indication indicated in non-fallback DCI;

the NFI and PDSCH grouping trigger indication corresponding to the back DCI;

NFI and PDSCH packet trigger indication corresponding to SPS PDSCH.

The network device provided in the embodiment of the present invention can implement each process implemented by the network device in the method embodiment of fig. 3, and in order to avoid repetition, a description is omitted here.

Fig. 8 is a schematic diagram of a hardware structure of a terminal implementing various embodiments of the present invention.

The terminal 800 includes, but is not limited to: radio frequency unit 801, network module 802, audio output unit 803, input unit 804, sensor 805, display unit 806, user input unit 807, interface unit 808, memory 809, processor 810, and power supply 811. It will be appreciated by those skilled in the art that the terminal structure shown in fig. 8 is not limiting of the terminal and that the terminal may include more or fewer components than shown, or may combine certain components, or a different arrangement of components. In the embodiment of the invention, the terminal comprises, 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.

A processor 810, configured to determine a reference PDCCH monitoring opportunity corresponding to a SPS PDSCH of the SPS; and determining a first DAI corresponding to the SPS PDSCH according to the reference PDCCH monitoring opportunity, wherein the first DAI is used for constructing a dynamic codebook containing HARQ-ACK corresponding to the SPS PDSCH.

It should be understood that, in this embodiment, the processor 810 and the radio frequency unit 801 can implement each process implemented by the terminal in the method embodiment of fig. 3, and in order to avoid repetition, a description is omitted here.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 801 may be used for receiving and transmitting signals during the process of receiving and transmitting information or communication, specifically, receiving downlink data from a base station, and then processing the received downlink data by the processor 810; and, the uplink data is transmitted to the base station. In general, the radio frequency unit 801 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. In addition, the radio frequency unit 801 may also communicate with networks and other devices through a wireless communication system.

The terminal provides wireless broadband internet access to the user through the network module 802, such as helping the user to send and receive e-mail, browse web pages, access streaming media, etc.

The audio output unit 803 may convert audio data received by the radio frequency unit 801 or the network module 802 or stored in the memory 809 into an audio signal and output as sound. Also, the audio output unit 803 may also provide audio output (e.g., a call signal reception sound, a message reception sound, etc.) related to a specific function performed by the terminal 800. The audio output unit 803 includes a speaker, a buzzer, a receiver, and the like.

The input unit 804 is used for receiving an audio or video signal. The input unit 804 may include a graphics processor (Graphics Processing Unit, GPU) 8041 and a microphone 8042, the graphics processor 8041 processing image data of still pictures or video obtained by an image capturing apparatus (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 806. The image frames processed by the graphics processor 8041 may be stored in the memory 809 (or other storage medium) or transmitted via the radio frequency unit 801 or the network module 802. The microphone 8042 can receive sound, and can process such sound into audio data. The processed audio data may be converted into a format output that can be transmitted to the mobile communication base station via the radio frequency unit 801 in case of a telephone call mode.

The terminal 800 also includes at least one sensor 805 such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 8061 according to the brightness of ambient light, and the proximity sensor can turn off the display panel 8061 and/or the backlight when the terminal 800 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and direction when the accelerometer sensor is stationary, and can be used for recognizing the terminal gesture (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; the sensor 805 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 are not described herein.

The display unit 806 is used to display information input by a user or information provided to the user. The display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 807 is operable to receive input numeric or character information and to generate key signal inputs related to user settings and function controls of the terminal. In particular, the user input unit 807 includes a touch panel 8071 and other input devices 8072. Touch panel 8071, also referred to as a touch screen, may collect touch operations thereon or thereabout by a user (e.g., operations of the user on touch panel 8071 or thereabout using any suitable object or accessory such as a finger, stylus, etc.). The touch panel 8071 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch azimuth 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 detection device, converts it into touch point coordinates, sends the touch point coordinates to the processor 810, and receives and executes commands sent from the processor 810. In addition, the touch panel 8071 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 8071, the user input unit 807 can include other input devices 8072. In particular, other input devices 8072 may include, but are not limited to, physical keyboards, function keys (e.g., volume control keys, switch keys, etc.), trackballs, mice, joysticks, and so forth, which are not described in detail herein.

Further, the touch panel 8071 may be overlaid on the display panel 8061, and when the touch panel 8071 detects a touch operation thereon or thereabout, the touch operation is transmitted to the processor 810 to determine a type of touch event, and then the processor 810 provides a corresponding visual output on the display panel 8061 according to the type of touch event. Although in fig. 8, the touch panel 8071 and the display panel 8061 are two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 8071 and the display panel 8061 may be integrated to implement the input and output functions of the terminal, which is not limited herein.

The interface unit 808 is an interface to which an external device is connected to the terminal 800. For example, the external devices may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data 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 808 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 800 or may be used to transmit data between the terminal 800 and an external device.

The memory 809 can be used to store software programs as well as various data. The memory 809 may mainly include a storage program area that may store an operating system, application programs required for at least one function (such as a sound playing function, an image playing function, etc.), and a storage data area; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, the memory 809 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 810 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by running or executing software programs and/or modules stored in the memory 809 and calling data stored in the memory 809, thereby performing overall monitoring of the terminal. The processor 810 may include one or more processing units; preferably, the processor 810 may integrate an application processor that primarily handles operating systems, user interfaces, applications, etc., with a modem processor that primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 810.

Terminal 800 may also include a power supply 811 (e.g., a battery) for powering the various components, and preferably, power supply 811 may be logically coupled to processor 810 through a power management system that provides for managing charge, discharge, and power consumption.

In addition, the terminal 800 includes some functional modules, which are not shown, and will not be described herein.

Preferably, the embodiment of the present invention further provides a terminal, which includes a processor 810, a memory 809, and a computer program stored in the memory 809 and capable of running on the processor 810, where the computer program when executed by the processor 810 implements each process of the above embodiment of the HARQ-ACK processing method, and the same technical effects can be achieved, and for avoiding repetition, a detailed description is omitted herein.

Referring to fig. 9, fig. 9 is a block diagram of another network device according to an embodiment of the present invention, and as shown in fig. 9, the network device 900 includes: processor 901, transceiver 902, memory 903, and bus interface, wherein:

a processor 901, configured to determine a reference PDCCH monitoring opportunity corresponding to a SPS PDSCH of a SPS; and determining a first DAI corresponding to the SPS PDSCH according to the reference PDCCH monitoring opportunity, wherein the first DAI is used for analyzing a dynamic codebook containing HARQ-ACK corresponding to the SPS PDSCH.

It should be understood that, in this embodiment, the processor 901 and the transceiver 902 can implement each process implemented by the network device in the method embodiment of fig. 5, and in order to avoid repetition, a description is omitted here.

In fig. 9, a bus architecture may comprise any number of interconnected buses and bridges, with various circuits of the one or more processors, represented in particular by processor 901, and the memory, represented by memory 903, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 902 may be a number of elements, i.e., include a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The user interface 904 may also be an interface capable of interfacing with an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 901 is responsible for managing the bus architecture and general processing, and the memory 903 may store data used by the processor 901 in performing operations.

Preferably, the embodiment of the present invention further provides a network device, which includes a processor 901, a memory 903, and a computer program stored in the memory 903 and capable of running on the processor 901, where the computer program when executed by the processor 901 implements each process of the above embodiment of the HARQ-ACK processing method, and the same technical effects can be achieved, and for avoiding repetition, a detailed description is omitted herein.

The embodiment of the invention also provides a computer readable storage medium, and the computer readable storage medium stores a computer program, where the computer program when executed by a processor implements each process of the embodiment of the HARQ-ACK processing method on the network device side provided by the embodiment of the invention, or when executed by the processor implements each process of the embodiment of the HARQ-ACK processing method on the terminal side provided by the embodiment of the invention, and the same technical effect can be achieved, so that repetition is avoided and no further description is given here. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.

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

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a base station, etc.) to perform the method according to the embodiments of the present invention.

The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.

Claims

1. A hybrid automatic repeat request acknowledgement HARQ-ACK processing method, applied to a terminal, characterized by comprising:

determining a reference physical downlink control channel PDCCH monitoring opportunity corresponding to a semi-persistent scheduling physical downlink shared channel SPSPS PDSCH;

determining a first downlink allocation index DAI corresponding to the SPS PDSCH according to the reference PDCCH monitoring opportunity, wherein the first DAI is used for constructing a dynamic codebook containing HARQ-ACK corresponding to the SPS PDSCH;

wherein, the determining, according to the reference PDCCH monitoring opportunity, the first DAI corresponding to the SPS PDSCH includes:

2. The method of claim 1, wherein the reference PDCCH listening opportunity satisfies at least one of:

The time relation between the reference PDCCH monitoring opportunity and the SPS PDSCH is the same as the target time relation, wherein the target time relation is the time relation between the PDCCH monitoring opportunity of first downlink control information DCI and PDSCH transmission corresponding to the first DCI, and the first DCI is used for activating the SPS PDSCH;

3. The method of claim 1, wherein the reference PDCCH listening opportunity satisfies any of the following:

4. The method of claim 3, wherein the first PDCCH listening opportunity comprises any one of:

5. A method according to claim 3, wherein the preset conditions comprise any one of the following:

6. The method of claim 5, wherein the N slots are slot offset values corresponding to time-frequency resource allocation information indicated by a first DCI, the first DCI being used to activate the SPS PDSCH.

7. The method of claim 1, wherein the serving cell to which the reference PDCCH listening opportunity corresponds comprises one of:

a serving cell corresponding to a PDCCH monitoring opportunity of a first DCI, wherein the first DCI is used for activating the SPS PDSCH;

And the SPS PDSCH is located in a service cell.

8. The method of claim 1, wherein the unifying the first information pair and the second information pair with the DAI number, determining the first DAI comprises:

9. The method of claim 8, wherein the preset rules include any one of:

10. The method of claim 8, wherein in a case where Q SPS PDSCH corresponding to the reference PDCCH listening opportunity exists, the unifying the first information pair and the second information pair to a DAI number, determining the first DAI further comprises:

11. The method of claim 1, wherein the HARQ-ACK feedback slot corresponding to the SPS PDSCH is located before a starting time of the dynamic codebook transmission slot;

or, the distance between the end time of the SPS PDSCH and the start time of a target resource is greater than or equal to a preset value, where the target resource is a PUCCH or a physical uplink shared channel PUSCH used for transmitting the dynamic codebook.

12. The method of claim 1, wherein, in the case where the dynamic codebook is a dynamic codebook enhancement, the SPS PDSCH satisfies any one of:

The SPS PDSCH is attributed to PDSCH packet 0;

13. The method of claim 1, wherein, in the case where the dynamic codebook is a dynamic codebook enhancement, the SPS PDSCH satisfies any one of:

14. The method of claim 1, wherein, in the case where the dynamic codebook is a dynamic codebook enhancement, the SPS PDSCH satisfies any one of:

15. The method of claim 1, wherein after the determining the first DAI corresponding to the SPS PDSCH based on the reference PDCCH listening opportunity, the method further comprises:

NFI and PDSCH packet trigger indication indicated in non-fallback DCI;

the NFI and PDSCH grouping trigger indication corresponding to the back DCI;

NFI and PDSCH packet trigger indication corresponding to SPS PDSCH.

16. A hybrid automatic repeat request acknowledgement HARQ-ACK processing method, applied to a network device, comprising:

Determining a first downlink allocation index DAI corresponding to the SPS PDSCH according to the reference PDCCH monitoring opportunity, wherein the first DAI is used for analyzing a dynamic codebook containing HARQ-ACK corresponding to the SPS PDSCH;

17. The method of claim 16, wherein the reference PDCCH listening opportunity satisfies at least one of:

18. The method of claim 16, wherein the reference PDCCH listening opportunity satisfies any of the following:

19. The method of claim 18, wherein the first PDCCH listening opportunity comprises any one of:

20. The method of claim 18, wherein the preset conditions include any one of:

21. The method of claim 20, wherein the N slots are slot offset values corresponding to time-frequency resource allocation information indicated by a first DCI, the first DCI being used to activate the SPS PDSCH.

22. The method of claim 16, wherein the serving cell to which the reference PDCCH listening opportunity corresponds comprises one of:

and the SPS PDSCH is located in a service cell.

23. The method of claim 16, wherein the unifying the first information pair and the second information pair with the DAI number, determining the first DAI comprises:

24. The method of claim 23, wherein the preset rules include any one of:

25. The method of claim 23, wherein in a case where Q SPS PDSCH corresponding to the reference PDCCH listening opportunity exists, the unifying the first information pair and the second information pair to a DAI number, determining the first DAI further comprises:

26. The method of claim 16, wherein the HARQ-ACK feedback slot corresponding to the SPS PDSCH is located before a starting time of the dynamic codebook transmission slot;

27. The method of claim 16, wherein, if the dynamic codebook is a dynamic codebook enhancement, the SPS PDSCH satisfies any of the following:

the SPS PDSCH is attributed to PDSCH packet 0;

28. The method of claim 16, wherein, if the dynamic codebook is a dynamic codebook enhancement, the SPS PDSCH satisfies any of the following:

29. The method of claim 16, wherein, if the dynamic codebook is a dynamic codebook enhancement, the SPS PDSCH satisfies any of the following:

30. The method of claim 16, wherein after the determining the first DAI corresponding to the SPS PDSCH based on the reference PDCCH listening opportunity, the method further comprises:

NFI and PDSCH packet trigger indication indicated in non-fallback DCI;

the NFI and PDSCH grouping trigger indication corresponding to the back DCI;

NFI and PDSCH packet trigger indication corresponding to SPS PDSCH.

31. A terminal, comprising:

a first determining module, configured to determine a reference physical downlink control channel PDCCH monitoring opportunity corresponding to a semi-persistent scheduling physical downlink shared channel SPS PDSCH;

a second determining module, configured to determine, according to the reference PDCCH monitoring opportunity, a first downlink allocation index DAI corresponding to the SPS PDSCH, where the first DAI is configured to construct a dynamic codebook including HARQ-ACK corresponding to the SPS PDSCH;

The first determining module is specifically configured to uniformly number the first information pair and the second information pair with a DAI, and determine the first DAI;

32. A network device, comprising:

a third determining module, configured to determine a reference physical downlink control channel PDCCH monitoring opportunity corresponding to a semi-persistent scheduling physical downlink shared channel SPS PDSCH;

a fourth determining module, configured to determine, according to the reference PDCCH monitoring opportunity, a first downlink allocation index DAI corresponding to the SPS PDSCH, where the first DAI is configured to parse a dynamic codebook that includes HARQ-ACK corresponding to the SPS PDSCH;

the third determining module is specifically configured to uniformly number the first information pair and the second information pair with a DAI, and determine the first DAI;

33. A terminal, comprising: a memory, a processor and a program stored on the memory and executable on the processor, which when executed by the processor, implements the steps in the hybrid automatic repeat request acknowledgement, HARQ-ACK, processing method according to any of claims 1 to 15.

34. A network device, comprising: a memory, a processor and a program stored on the memory and executable on the processor, which when executed by the processor, implements the steps in the hybrid automatic repeat request acknowledgement, HARQ-ACK, processing method of any of claims 16 to 30.

35. A computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, the computer program implementing the steps of the hybrid automatic repeat request acknowledgement HARQ-ACK processing method according to any of claims 1 to 15 when being executed by a processor, or the computer program implementing the steps of the hybrid automatic repeat request acknowledgement HARQ-ACK processing method according to any of claims 16 to 30 when being executed by a processor.