CN114362900A

CN114362900A - Method, device and equipment for indicating SPS PDSCH and readable storage medium

Info

Publication number: CN114362900A
Application number: CN202011093069.5A
Authority: CN
Inventors: 曾超君
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2022-04-15

Abstract

The application discloses a method, a device, equipment and a readable storage medium for indicating SPS PDSCH, wherein the method comprises the following steps: receiving first indication information indicating a valid or invalid SPS PDSCH. In the embodiment of the application, the terminal can accurately know the SPS PDSCH occupancy without actual SPS PDSCH transmission, so that the terminal can skip NACK feedback aiming at the SPS PDSCH occupancy, only feeds back HARQ-ACK aiming at the SPS PDSCH with actual transmission, the HARQ-ACK feedback efficiency can be improved, and uplink resource overhead, terminal uplink power consumption and system uplink interference are reduced.

Description

Method, device and equipment for indicating SPS PDSCH and readable storage medium

Technical Field

The present application belongs to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a readable storage medium for indicating a Semi-Persistent Scheduling (SPS) Physical Downlink Shared Channel (PDSCH).

Background

In a communication system, Ultra-reliable and Low Latency Communications (URLLC) extends SPS configuration (SPS Config), and a single bandwidth Part (Band Width Part, BWP) of a single serving cell can configure and activate multiple SPS configs simultaneously, mainly considering the following scenarios:

(1) the service cell simultaneously serves a plurality of periodic services, the period or offset of different services may be different, and corresponding SPS configs are respectively configured aiming at different periods or offsets;

(2) some services have high delay requirements, but the packet period is not a value configurable in a protocol, or the arrival time of the packet does not strictly satisfy periodicity, and there may be jitter within a certain range, and at this time, multiple SPS configs may be configured and activated for a single service to accommodate the mismatch condition of the service data period, or accommodate the jitter range of the arrival time of the service data.

For scenario (2) above, the network actually provides more transmission opportunities than needed, and the actually used transmission opportunity is necessarily only a subset of the set of transmission opportunities provided by the network. At this time, for the transmission opportunities outside the subset, the terminal also has to perform reception detection and feed back a Hybrid automatic repeat request Acknowledgement (HARQ-ACK) according to the related protocol (generally, a Negative Acknowledgement (NACK) is necessary because the network side does not actually transmit downlink data at the corresponding transmission opportunity). Therefore, the HARQ-ACK codebook may include a large number of NACK bits for SPS Physical Downlink Shared Channel (PDSCH) timing (occupancy) that is not actually transmitted. How the terminal can accurately know which SPS PDSCH Ocvasion does not have actual SPS PDSCH transmission is an urgent problem to be solved.

Disclosure of Invention

Embodiments of the present application provide a method, an apparatus, a device, and a readable storage medium for indicating SPS PDSCH, so as to solve the problem how a terminal knows which SPS PDSCH occusion does not have actual SPS PDSCH transmission.

In a first aspect, a method for indicating a semi-persistent scheduling (SPS) Physical Downlink Shared Channel (PDSCH) is provided, and is applied to a terminal, and the method includes:

receiving first indication information indicating a valid or invalid SPS PDSCH.

In a second aspect, a method for indicating SPS PDSCH is provided, and is applied to a network side device, and includes:

transmitting first indication information indicating a valid or invalid SPS PDSCH.

In a third aspect, an apparatus for indicating an SPS PDSCH is provided, and is applied to a terminal, and includes:

a receiving module, configured to receive first indication information, where the first indication information indicates a valid or invalid SPS PDSCH.

In a fourth aspect, an apparatus for indicating SPS PDSCH is provided, and is applied to a network side device, including:

a sending module, configured to send first indication information, where the first indication information indicates a valid or invalid SPS PDSCH.

In a fifth aspect, a terminal is provided, including: a processor, a memory and a program stored on the memory and executable on the processor, which program, when executed by the processor, carries out the steps of the method according to the first aspect.

In a sixth aspect, a network-side device is provided, including: a processor, a memory and a program stored on the memory and executable on the processor, which program, when executed by the processor, carries out the steps of the method according to the second aspect.

In a seventh aspect, there is provided a readable storage medium on which a program or instructions are stored, which when executed by a processor, implement the steps of the method according to the first or second aspect.

In an eighth aspect, there is provided a program product stored on a non-volatile storage medium for execution by at least one processor to implement the steps of the method of the process of the first or second aspect.

In a ninth aspect, there is provided a chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a program or instructions to implement the method of processing according to the first or second aspect.

In the embodiment of the application, the terminal can accurately know the SPS PDSCH occupancy without actual SPS PDSCH transmission, so that the terminal can skip (skip) NACK feedback aiming at the SPS PDSCH occupancy and only feed back HARQ-ACK aiming at the SPS PDSCH with actual transmission, thereby obviously improving the HARQ-ACK feedback efficiency and reducing uplink resource overhead, terminal uplink power consumption and system uplink interference.

Drawings

FIG. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;

fig. 2 is a diagram illustrating one of the methods for indicating SPS PDSCH according to the embodiment of the present application;

fig. 3 is a second schematic diagram illustrating a method for indicating SPS PDSCH according to the embodiment of the present application;

fig. 4 is a schematic diagram illustrating that SPS PDSCH occasions are skipped when multiple SPS configurations are configured to support Time Sensitive Network (TSN) services in the embodiment of the present application;

fig. 5 is a schematic diagram of an apparatus for indicating SPS PDSCH according to an embodiment of the present application;

fig. 6 is a second schematic diagram of an apparatus for indicating SPS PDSCH according to an embodiment of the present application;

fig. 7 is a schematic diagram of a terminal according to an embodiment of the present application;

fig. 8 is a schematic diagram of a network-side device according to an embodiment of the present application.

Detailed Description

In order to facilitate understanding of the embodiments of the present application, the following technical points are introduced:

for a certain SPS PDSCH occupancy, when the terminal determines whether there is an actual SPS PDSCH transmission based on a Dedicated demodulation reference signals (DM-RS) detection, either one of the following modes 1 and 2 may be adopted:

mode 1: DM-RS detection (detection) is carried out firstly, and PDSCH detection is carried out after the fact that the corresponding SPS PDSCH is transmitted is judged.

Mode 2: and performing DM-RS detection and PDSCH detection in parallel, and judging based on the results of the DM-RS detection and the PDSCH detection:

case 2-1, DM-RS detection by, PDSCH detection correctly decodes: the PDSCH is judged to be actually transmitted, and Acknowledgement (ACK) is given.

Case 2-2, DM-RS detection by, PDSCH detection error decode: whether the PDSCH is actually transmitted cannot be accurately judged;

case 2-3, DM-RS detection does not pass, PDSCH detection decodes correctly: judging actual sending of PDSCH and ACK;

case 2-4, DM-RS detection does not pass, PDSCH detection decodes in error: it is impossible to accurately judge whether PDSCH is actually transmitted.

For the above cases 2-2 and 2-4, in case that the accuracy of DM-RS detection is in doubt, the terminal cannot accurately determine whether the SPS PDSCH is not actually transmitted in the SPS PDSCH occupancy or the SPS PDSCH is actually transmitted, but the decoding is erroneous.

The above-described mode 1 also has a similar problem. If the terminal feeds back HARQ-ACK corresponding to certain SPS PDSCH occupancy based on the result skip of DM-RS detection, the problem that the terminal and the network side have inconsistent understanding of the HARQ-ACK codebook may be caused. In addition, the terminal needs to perform an additional DM-RS detection operation for each SPS PDSCH occupancy, which also results in an increase in implementation complexity.

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived from the embodiments given herein by a person of ordinary skill in the art are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more. In the specification and claims, "and" represents at least one of connected objects, and a character "/" generally indicates that a preceding and succeeding related object is in an "or" relationship.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, but the techniques may also be applied to applications other than NR system applications, such as generation 6 (6)^thGeneration, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, the Wearable Device includes: bracelets, earphones, glasses and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base station or a core network, wherein the Base station may be referred to as a node B, an evolved node B, an access Point, a Base Transceiver Station (BTS), a radio Base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a WLAN access Point, a WiFi node, a Transmit Receive Point (TRP), or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base station is not limited to a specific technical vocabulary, and it should be noted that in the embodiment of the present application, only the Base station in the NR system is taken as an example, but the specific type of the Base station is not limited.

The method, apparatus, device and readable storage medium for indicating SPS PDSCH provided in the embodiments of the present application are described in detail with reference to the accompanying drawings.

Referring to fig. 2, an embodiment of the present application provides a method for indicating an SPS PDSCH, where an execution subject of the method may be a terminal, and the method includes: step 201.

Step 201: receiving first indication information indicating (or configuring) a valid or invalid SPS PDSCH.

The valid SPS PDSCH may be an actually transmitted SPS PDSCH or an SPS PDSCH occasion with SPS PDSCH transmission present, the invalid SPS PDSCH may be an SPS PDSCH which is not actually transmitted or an SPS PDSCH occasion without SPS PDSCH transmission present, or the valid SPS PDSCH may also be an SPS PDSCH or an SPS PDSCH occasion for which HARQ-ACK feedback is desired, or the invalid SPS PDSCH may also be an SPS PDSCH or an SPS PDSCH occasion for which HARQ-ACK feedback is not desired.

In some embodiments, the first indication information is a first DCI, the first DCI indicating a valid or invalid SPS PDSCH.

In some embodiments, the first DCI is a group common DCI (group common DCI) or a terminal-specific DCI (ue specific DCI).

In some embodiments, the first DCI comprises one or more of:

(1) first information indicating a semi persistent scheduling configuration, SPS Config set, SPS Config group, or SPS Config group set, information determining a valid or invalid SPS PDSCH based on the SPS Config, SPS Config set, SPS Config group, or SPS Config group set;

alternatively, the SPS configs are divided into groups according to a certain rule, for example, one or more SPS configs configured for a certain service may be configured to belong to the same SPS Config Group, or SPS configs configured for the same Priority Index (Priority Index), BWP, Serving Cell or PUCCH (Physical Uplink Control Channel) Cell Group (Physical Uplink Control Channel Group) may be explicitly configured or implicitly grouped into the same SPS Config Group.

Optionally, the network side may also indicate only the serving cell or the serving cell set, or the network side indicates the serving cell or the serving cell set corresponding to the carrier by using the carrier sent by the DCI; all or part of the SPS Config or SPS Config group configured or activated on the serving cell or serving cell set is used as the SPS Config set or SPS Config group set indicated by the first DCI.

(2) Second information indicating a range of valid or invalid SPS PDSCHs;

(3) third information for controlling HARQ-ACK feedback.

Optionally, the third information is used for controlling HARQ-ACK feedback of valid or invalid SPS PDSCH, or the third information is used for controlling HARQ-ACK feedback of all SPS PDSCH.

For example, the first information indicates information of valid or invalid SPS PDSCHs corresponding to 0, 1 or more SPS configs, SPS Config groups, SPS Config sets, or SPS Config group sets.

In some implementations, the SPS Config, SPS Config group, SPS Config set, or SPS Config group set indicated by the first information is currently all in an active state.

Alternatively, the first information may take any of the following forms (Option)1-1 or Option 1-2):

option 1-1: bitmap (Bitmap) form.

In some embodiments, the first information comprises a first Bitmap (Bitmap) comprising: a first bit corresponding to an SPS Config, a set of SPS configs, or a set of SPS Config groups.

There is a one-to-one or one-to-many correspondence between each valid bit in the first bitmap, which refers to the bit actually used in the first bitmap, and each configured or activated SPS Config or set of SPS configs. There may be bits in the first bitmap that are not actually used, e.g., there are a certain number of Padding (Padding) bits at the tail.

In some embodiments, a value of the first bit is used to determine whether the first DCI indicates an SPS Config, a set of SPS configs, or a set of SPS Config groups corresponding to the first bit. Optionally, the first bit is a valid bit.

For example, if the first bit value is 0, it is determined that the first DCI does not indicate information of a valid or invalid SPS PDSCH of the SPS Config, SPS Config set, SPS Config group, or SPS Config group set corresponding to the first bit, or the SPS Config, SPS Config set, SPS Config group, or SPS Config group set corresponding to the first bit; and determining the information which indicates the effective or ineffective SPS PDSCH of the SPS Config, the SPS Config set, the SPS Config group or the SPS Config group set corresponding to the first bit or the SPS Config, the SPS Config set, the SPS Config group or the SPS Config group set corresponding to the first bit in the first DCI when the first bit value is 1.

In some embodiments, the position of the first bit in the first bitmap is determined by any one of the following (manner 1 or manner 2):

mode 1: implicitly determining a position (alternatively referred to as a subscript) of the first bit in the first bitmap based on an index (or identification, ID) of an SPS Config, a set of SPS configs, or a set of SPS configs corresponding to the first bit;

there is currently a corresponding index (indicated, for example, by the parameter SPS-ConfigIndex-r 16) for each SPS Config or set of SPS configs that uniquely identifies the SPS Config or set of SPS configs within a single BWP. The position of the first bit in the first bitmap for each SPS Config or SPS Config group may be determined based on the Index in conjunction with a Serving Cell Index (Serving Cell Index) for the SPS Config or SPS Config group.

For example, assume that a current PUCCH Cell Group corresponds to M Serving Cell indexes, one or more BWPs are configured on a Serving Cell corresponding to each Serving Cell Index, and each BWP is configured with 0 or more SPS configs or SPS Config groups.

For a certain serving cell m, assuming that the maximum value of the number of SPS configs or the number of SPS Config groups configured on each BWP configured by the serving cell m is N, when a bit in the Bitmap corresponds to an SPS Config or an SPS Config group, the serving cell m may correspond to N bits in the first Bitmap, and when a certain BWP is in an active state, each SPS Config or each SPS Config group configured in the BWP is from small to large (or from large to small) by an index, and sequentially corresponds to each bit in the N bits from the first bit (i.e., the first bit, or a designated bit) to the tail, if there are remaining bits, the tail is considered as an actually unused bit. The bitmaps corresponding to the M Serving cells are sequentially cascaded end to end from small to large (or from large to small) according to the Serving Cell Index to form a complete Bitmap. In this way, the corresponding bits of each SPS Config or each SPS Config Group configured in each BWP of each serving Cell in the same PUCCH Cell Group in the Bitmap are determined.

Alternatively, when the bits in the first bitmap and the SPS Config or SPS Config group may be in one-to-many correspondence, O index-adjacent SPS Config or SPS Config groups may be corresponding to the same bit, and O may be specified by a protocol or configured by higher layer signaling. At this time, when the maximum value of the SPS Config numbers configured on each BWP configured by a certain serving cell m is N, the serving cell m may correspond to a ceiling (N/O) bit in the first bitmap, that is, the number of bits in the first bitmap is N/O and rounded up, and ceiling () is an operation of rounding up floating point numbers.

Mode 2: and based on fourth information configured on the network side, the fourth information indicates the position of the first bit corresponding to the SPS Config, the SPS Config set, the SPS Config group or the SPS Config group in the first bitmap, that is, the position of the first bit in the first bitmap is explicitly configured.

That is, the network side is configured to ensure a one-to-one correspondence between each valid bit in the first bitmap and each SPS Config or each SPS Config group. Optionally, the network side may also configure the first bitmap such that a valid bit in the first bitmap corresponds to more than one SPS Config or SPS Config group, that is, multiple SPS configs (equivalent to the SPS Config set) or SPS Config groups (equivalent to the SPS Config group set) configure the same position or index in the first bitmap.

In some embodiments, the number of bits of the first bitmap is determined by any one of the following (method a or method B):

mode A: determining the bit number of the first bitmap based on an SPS Config, an SPS Config set, an SPS Config Group or an SPS Config Group set configured on a BWP configured by a serving Cell corresponding to a current Physical Uplink Control Channel (PUCCH) Cell Group (Cell Group);

for example, assume that a current PUCCH Cell Group corresponds to M Serving Cell indexes, one or more BWPs are configured on a Serving Cell M corresponding to each Serving Cell Index, and each BWP is configured with 0 or more SPS configs or SPS Config groups. For a certain serving cell m, it is assumed that it is configured with I BWPs, where BWP I (for example, representing ith BWP) is configured with N_m,iThe item SPS Config or SPS Config group, the serving cell m corresponds to ceiling (max (N)_m,i)/J_m) Bit (N)_m＝max(N_m,i) Ceiling () is a rounding up operation on floating point numbers, where J corresponds to an SPS Config or set of SPS configs when a bit in the first bitmap corresponds to one_m1, when the bits in the first bitmap correspond to an SPS Config or set of SPS configs in one-to-many correspondence, J_m＝O_m，1≤O_m≤N_mHere J_mIt may be understood as the number or maximum number of SPS Config or SPS Config groups, O, corresponding to one bit in the first bitmap_mIt is understood that the number or maximum number of SPS configs or SPS Config groups corresponding to the same bit in the first bitmap and adjacent to the index or ID in the one-to-many correspondenceA large number. The number of bits of the entire first bitmap may be Σ_mceiling(max(N_m,i)/J_m)。

Mode B: and determining the bit number of the first bitmap based on fifth information configured by the network side, wherein the fifth information indicates the bit number of the first bitmap, namely the bit number of the first bitmap explicitly configured by the network side.

Options 1-2: state (State) form.

In some implementations, the first information indicates a first State in a State (State) list, the first State corresponding to the SPS Config, a set of SPS configs, or a set of SPS Config groups.

It will be appreciated that the higher layer will configure each State to correspond to one SPS Config, SPS Config group set, and that a single SPS Config, SPS Config group set may be referenced to the respective involved SPS Config, SPS Config group based on the SPS Config, SPS Config group index or ID, i.e. each State actually corresponds to a single SPS Config, SPS Config group index or ID set, which may include one or more SPS Config, SPS Config group indices or IDs, each SPS Config, SPS Config group index or ID indicating its corresponding SPS Config or SPS Config group. The high layer forms a State list with each configured State and configures the State list to the terminal, and indicates an index of a certain State in the list or an ID corresponding to the State in the first DCI, thereby indicating the State, and further indicating an SPS Config, an SPS Config set, an SPS Config group or an SPS Config group set corresponding to the State.

That is, in the embodiment of the present application, when the State form is adopted, each State corresponds to SPS Config, SPS Config set, SPS Config group, or SPS Config group set, and a certain State in this State list is indicated in the first DCI.

In some embodiments, the second information indicates, for each SPS Config, set of SPS configs, or set of SPS configs, a range of valid or invalid SPS PDSCHs, respectively, if the first information is included in the first DCI; or, if the first information is not included in the first DCI, the second information collectively indicates a range of valid or invalid SPS PDSCHs for all SPS configs, SPS Config sets, SPS Config groups, or SPS Config group sets.

The meaning of the above "all" means: the range of valid or invalid SPS PDSCH is for all configured or activated SPS Config, SPS Config set, or SPS Config set corresponding to the current PUCCH Cell Group (Cell Group).

In some embodiments, the network side may indicate the range of the valid or invalid SPS PDSCH by the second information in the first DCI. When the SPS Config or the SPS Config set in which the valid or invalid SPS PDSCH indication information exists is indicated in the first DCI, or the SPS Config group set, the range of the valid or invalid SPS PDSCH may be indicated for each SPS Config, or each SPS Config group, or each SPS Config set (a certain SPS Config set/SPS Config group set includes a part of SPS Config/SPS Config groups in the set formed by all SPS Config/SPS Config groups indicated in the first DCI), or may be collectively indicated for all SPS Config, SPS Config set, SPS Config group, or SPS Config group set indicated in the first DCI.

When the SPS Config, SPS Config Group, SPS Config set, or SPS Config Group set indicating the presence of valid or invalid SPS PDSCH indication information in the first DCI is not indicated, it may be understood that the range of valid or invalid SPS PDSCH is for all configured or activated SPS Config, SPS Config set, SPS Config Group, or SPS Config Group set corresponding to the current PUCCH Cell Group.

When a range of valid or invalid SPS PDSCH is indicated (assuming that the valid or invalid SPS PDSCH range indicates an application/corresponding SPS Config, SPS Config group, SPS Config set, or SPS Config group set is referred to as a target SPS Config), the second information may employ any one of the following options 2-1 and 2-2:

option 2-1: indicating a valid or invalid SPS PDSCH Occasion (occupancy), specifically referring to option 2-1-1 and option 2-1-2, that is, any one of option 2-1-1 or option 2-1-2 may be adopted;

option 2-1-1: indicating valid or invalid SPS PDSCH occasions based on the indication period;

when a protocol specification or a higher layer configures a first DCI detection period and offset, the UE will periodically detect the first DCI, at this time, each first DCI detection position may correspond to an indication period, all SPS PDSCH occupancy (SPS PDSCH occupancy completely located in the indication period, or SPS PDSCH occupancy overlapping with the indication period in time domain) existing in the indication period by the target SPS Config are used as an indication range of the SPS PDSCH, and information in the first DCI indicates that an SPS PDSCH occupancy subset for valid or invalid SPS PDSCH transmission exists in the range.

In some embodiments, the length of the indication period is determined by any one of:

(1) the length (L1) of the indication period is equal to the length (L2) of the detection period of the first DCI, i.e., L1 is equal to L2;

(2) the length (L1) of the indication period is N times the length (L2) of the detection period of the first DCI, N being a positive integer, i.e., L1 is N times L2, where N may be specified by a protocol or configured by higher layers;

(3) the length (L1) of the indication period comprises the length (L2) of the detection period of the first DCI and an adjustment length, namely L1 is superposed with an adjustment length on the basis of L2, and the adjustment length can be specified by a protocol or configured by a higher layer;

(4) the length (L1) of the indication period is configured by protocol convention or network side, i.e. L1 is directly specified by protocol or configured by higher layer.

In some embodiments, the end position of the indication period comprises any one of:

(1) an end time of a first symbol of a Control resource set (CORESET) where the first DCI detects is located, for example, the indication period is located before the first symbol of the CORESET where the first DCI detects is located;

(2) the ending time of the X1 th symbol before the first symbol of the CORESET where the first DCI is detected, for example, the indication period is before the first symbol-X1-1 symbol of the CORESET where the first DCI is detected;

(3) the end time of the last symbol of the core set where the first DCI is detected is, for example, the indication period is before the next symbol of the last symbol of the core set where the first DCI is detected;

(4) the ending time of the Y1 th symbol after the last symbol of the CORESET where the first DCI is detected, for example, the indication period is before the last symbol + Y1+1 symbol of the CORESET where the first DCI is detected;

wherein, X1 and Y1 are positive integers and can be defined by a protocol or configured by a higher layer.

Alternatively, the start position of the indication period may be determined based on the end position and the length (L1) of the indication period. At this time, it can be understood that the network side mainly indicates SPS PDSCH occupancy that has occurred, and the UE side corrects the judgment on the invalid SPS PDSCH (or called the Skipped SPS PDSCH) based on these indications, so as to accurately skip HARQ-ACK (HARQ-ACK skipping for the Skipped SPS PDSCH) corresponding to the invalid SPS PDSCH during HARQ-ACK feedback.

In some embodiments, the start position of the indication period comprises any one of:

(1) the end time (or the start time) of the first symbol of the core set where the first DCI is detected, for example, the indication period is located after the first symbol of the core set where the first DCI is detected (or after the start time of the core set where the first DCI is detected);

(2) the ending time (or starting time) of the X2 th symbol before the first symbol of the CORESET where the first DCI is detected is, for example, the indication period is located after the first symbol-X2 symbol of the CORESET where the first DCI is detected (or after the first symbol-X2-1 symbol of the CORESET where the first DCI is detected);

(3) the end time (or the start time) of the last symbol of the core set where the first DCI is detected, for example, the indication period is located after the last symbol of the core set where the first DCI is detected (or after the penultimate symbol of the core set where the first DCI is detected);

(4) the ending time (or starting time) of the Y2 th symbol after the last symbol of the CORESET where the first DCI is detected, for example, the indication period is located after the last symbol of the CORESET where the first DCI is detected + Y2 symbols (or after the last symbol of the CORESET where the first DCI is detected + Y2-1 symbols);

wherein, X2 and Y2 are positive integers and can be defined by a protocol or configured by a higher layer.

Alternatively, the end position of the indication period may be determined based on the above-described start position and the length (L1) of the indication period. At this time, it can be understood that the network side mainly indicates SPS PDSCH occupancy that has not yet arrived, and the UE side may detect subsequent SPS PDSCH occupancy based on this indication (for example, only detect SPS PDSCH occupancy indicating that there is an effective SPS PDSCH transmission), or may accurately skip HARQ-ACK (HARQ-ACK skip for skipped SPS PDSCH) corresponding to an invalid SPS PDSCH during HARQ-ACK feedback based on this indication. However, because the network indicates in advance, there is a certain limitation on the scheduling of the subsequent SPS PDSCH (the network needs to ensure the consistency between the scheduling of the subsequent SPS PDSCH and the information indicated in advance), and when the service characteristics are relatively clear (for example, the network side can accurately determine the arrival time of the high-level service data), and the time-frequency resources in the system are relatively sufficient, the scheduling limitation is relatively small.

When indicating a valid or invalid SPS PDSCH transmission for the target SPS Config within the indicated period, any of the following manners 2-1-1-a and 2-1-1-b may be employed:

mode 2-1-1-a: the second information directly indicates that there is an SPS PDSCH occasion index or set of indices for valid or invalid SPS PDSCH transmissions.

At this time, it can be understood that 0 or more SPS PDSCH occusions existing in the indication period by the target SPS Config may allocate a local index to the target SPS Config in time sequence, and the network side indicates that the SPS PDSCH occusions corresponding to 0 or more indexes of the target SPS Config exist or do not exist in actual SPS PDSCH transmission. When the target SPS Config relates to a plurality of SPS configs transmitting corresponding SPS PDSCHs on the same serving cell, and SPS PDSCH occupancy corresponding to the SPS configs overlap in time domain, a predefined rule may be adopted to consider only a portion of SPS PDSCH occupancy or a single SPS PDSCH occupancy where time domain overlap exists in a single time domain unit, and the considered SPS PDSCH occupancy will be allocated with the local index.

For example, for a plurality of SPS PDSCH occupancy in which there is time domain overlap in a single time slot, only SPS PDSCH occupancy corresponding to SPS Config with the smallest SPS Config index is considered. In the above-described local index assignment, if the target SPS Config relates to a plurality of SPS configs, the local indexes may be assigned to the SPS Config/SPS Config groups separately, or may be collectively assigned to the plurality of SPS configs related to the target SPS Config. Accordingly, when indicating an index or set of indices for valid or invalid SPS PDSCH transmissions, it is also distinguished that SPS Config or SPS Config group is indicated separately or uniformly for a target SPS Config.

Mode 2-1-1-b: the second information employs a Bitmap to indicate the presence of SPS PDSCH occupancy for valid or invalid SPS PDSCH transmissions.

That is, the second information may include a second bitmap including a second bit indicating one or more SPS PDSCH occasions where there is a valid or invalid SPS PDSCH transmission.

For example, the SPS PDSCH occupancy that needs to be considered in the indication period is collected first to form an SPS PDSCH occupancy set (if the target SPS Config relates to multiple SPS configs, the SPS PDSCH occupancy set here may be collected separately for each SPS Config or each SPS Config component, or may be collected uniformly for multiple SPS configs related to the target SPS Config, if the target SPS Config only relates to a single SPS Config, the SPS PDSCH occupancy set here corresponds to the single SPS Config), each SPS PDSCH occupancy in the SPS PDSCH occupancy set may be arranged in the order of the start time or in another predefined order, and then the SPS occupancy set for which the SPS PDSCH transmission is valid or invalid is indicated in the manner of Bitmap. When determining the corresponding relationship between each bit in the Bitmap and SPS PDSCH occupancy, each bit may correspond to a single SPS PDSCH occupancy one to one, or each bit may correspond to a plurality of SPS PDSCH occussions with continuous indexes or adjacent permutation positions in the set, that is, a Bundling manner is adopted. The mapping may be performed sequentially from the beginning bit or the designated bit of the Bitmap, from the front to the back or other predefined order based on the order of SPS PDSCH occupancy within the SPS PDSCH occupancy set. When the value of a certain bit is 0, it may indicate that the SPS PDSCH occupancy corresponding to the certain bit does not have actual SPS PDSCH transmission, and when the value is 1, it may indicate that the SPS PDSCH occupancy corresponding to the certain bit has actual SPS PDSCH transmission.

Optionally, a single Bitmap (i.e. the second Bitmap) corresponds to the single SPS PDSCH occupancy set one-to-one, that is: if the target SPS Config relates to a plurality of SPS configs, the Bitmap can be in one-to-one correspondence with each SPS Config or each SPS Config group, or can be in unified correspondence with the plurality of SPS configs; if the target SPS Config only relates to a single SPS Config, the Bitmap here corresponds to this single SPS Config. When more than one Bitmap is involved, the bitmaps may also be cascaded end-to-end based on predefined rules, such as in ascending order or other predefined order based on the index or ID of the SPS Config or SPS Config group.

Options 2-1-2: a valid or invalid SPS PDSCH Occasion indicated based on a reference point and a first value, the first value representing a count of the valid or invalid SPS PDSCH Occasion, i.e., a valid or invalid SPS PDSCH Occasion indicated based on the reference point and the SPS PDSCH Occasion count.

When the protocol is not specified or the higher layer is not configured with the first DCI detection period and offset, or even if the protocol is specified or the network is configured with the first DCI detection period and offset, the valid or invalid SPS PDSCH occupancy is not indicated based on the indication period, the valid or invalid SPS PDSCH occupancy may be determined in the following manner:

with respect to the first DCI, the target SPS Config counts N (first value) SPS PDSCH events from a certain reference point forward or backward as SPS PDSCH events to be considered; when the target SPS Config relates to more than one SPS Config or one SPS Config group, a corresponding SPS PDSCH occupancy may be determined for each SPS Config or each SPS Config group involved, respectively, optionally taking into account the above SPS PDSCH occupancy selection behavior when there are multiple SPS PDSCH occupancies that overlap in time domain within a single time domain unit.

In some embodiments, the reference point is determined by any one of:

(1) the first DCI detects the starting time of the first symbol of the CORESET where the first DCI locates, namely the first symbol of the CORESET where the first DCI locates;

(2) the first DCI detects the starting time of the X3 th symbol before the first symbol of the CORESET, that is, the first DCI detects the-X3 symbol of the first symbol of the CORESET;

(3) the first DCI detects the end time of the last symbol of the CORESET where the first DCI locates, namely the first DCI detects the last symbol of the CORESET where the first DCI locates;

(4) the first DCI detects the end time of the Y3 th symbol after the last symbol of the CORESET, that is, the first DCI detects the last symbol + Y3 symbol of the CORESET;

(5) starting time or ending time of HARQ-ACK feedback resources indicated in the first DCI;

(6) starting time or ending time of a time domain unit where HARQ-ACK feedback resources indicated in the first DCI are located;

wherein, X3 and Y3 are positive integers and can be specified by a protocol or configured by a higher layer. The HARQ-ACK feedback resource may be a PUCCH or a PUSCH (Physical uplink shared channel). The time domain unit here may be a Slot (Slot) or a Sub-Slot (Sub-Slot).

In some embodiments, the first value (N) is determined by any one of:

(1) network side configuration, that is, the configuration may be directly configured by a higher layer, and may be configured based on granularity such as SPS configuration, Priority Index (Priority Index), BWP, Serving Cell (Serving Cell), or PUCCH Cell Group, that is, configured for each SPS configuration, Priority Index, BWP, Serving Cell, or PUCCH Cell Group, respectively;

(2) determining based on a value set configured on a network side and sixth information carried in the first DCI, where the sixth information indicates one value in the value set, that is, a value set is configured by a higher layer, and indicates to apply a certain value in the first DCI, and the configuration and the indication may also be configured based on granularity such as SPS Config, Priority Index, BWP, Serving Cell, or PUCCH Cell Group;

(3) agreement commitment, i.e., determined based on specified rules, which may be agreed upon by the agreement. For example, the maximum value of K1 may be determined based on a ratio between the configured maximum value of K1 and a period of SPS Config, where K1 is an offset between an uplink timeslot/sub-slot where a PDSCH end time is located and an uplink timeslot/sub-slot where HARQ-ACK feedback resources are located, and the maximum value of K1 is a maximum value in a K1 candidate value set configured by a higher layer. Alternatively, N may be implicitly determined based on the reference point and the above-mentioned K1 maximum value. For example, when the reference point is the starting time or the ending time of the time domain unit in which the HARQ-ACK feedback resource indicated in the first DCI is located, the number of SPS PDSCH occupancy existing in a time window defined by the starting time (i.e., the time window corresponding to the reference point from the starting time to the reference point) determined by backward-pushing the reference point by the time length corresponding to the maximum K1 time domain units, or the number of SPS PDSCH occupancy existing in a time window with time domain overlapping may be taken as a value of N.

Option 2-2: the second information indicates a HARQ process corresponding to the SPS PDSCH which is valid or invalid.

The current protocol may configure one HARQ process ID offset for each SPS Config, and the number of available HARQ processes, to determine one pool of available HARQ processes for each SPS Config. The HARQ process used by a certain SPS Config that specifies SPS PDSCH occupancy may be uniquely determined based on the corresponding pool of available HARQ processes and the time domain location of this SPS PDSCH occupancy.

Based on the above description, one possible indication method for valid or invalid SPS PDSCH transmission is: the network side indicates whether effective or ineffective SPS PDSCH transmission exists for a certain SPS Config related to the target SPS Config aiming at a certain HARQ process configured by the network side; when a certain HARQ process of a certain SPS Config configuration is indicated as not having a valid or invalid SPS PDSCH transmission, there is no valid or invalid SPS PDSCH transmission for all SPS PDSCH occusions associated with this HARQ process.

The HARQ process pools corresponding to all SPS configs related to the target SPS Config may be respectively indicated, or the HARQ process pools corresponding to all SPS configs related to the target SPS Config may be merged (for example, only the HARQ process pools corresponding to SPS configs configured on the same serving cell are merged), or the HARQ process pools corresponding to all SPS configs corresponding to a certain SPS Config group related to the target SPS Config are merged (for example, only the HARQ process pools corresponding to SPS configs configured on the same serving cell are merged), and then the merged set is collectively indicated (when the target SPS Config or a certain SPS Config group of the target SPS Config relates to multiple serving cells, the indication is collectively indicated for each serving cell).

Alternatively, when the second information specifically indicates, any one of the following modes 2-2-1 and 2-2-1 may be adopted:

mode 2-2-1: the second information directly indicates the HARQ process index or index set.

In some embodiments, the second information indicates that: the HARQ process index or HARQ process index set corresponding to the SPS PDSCH is valid or invalid;

the index here can be directly the HARQ process ID, or the HARQ process in the HARQ process pool, or a local index in the union of the HARQ process pools.

Mode 2-2-2: the second information is indicated by a Bitmap.

In an embodiment of the present application, the second information includes: a third bitmap, where the third bitmap includes a third bit, and a value of the third bit indicates whether a HARQ process corresponding to the third bit corresponds to a valid or invalid SPS PDSCH. For example, when the value of the third bit is 0, it is indicated that there is no valid or invalid SPS PDSCH transmission in the HARQ process corresponding to the third bit; and when the value of the third bit is 1, indicating that the HARQ process corresponding to the third bit has effective or ineffective SPS PDSCH transmission.

The third bitmap may correspond to any one of the following (1) to (4):

(1) a downlink HARQ process pool configured by the serving cell, wherein the position (subscript) in the third bitmap can be the HARQ process ID directly;

(2) a HARQ process pool of a certain SPS Config, where the position in the third bitmap may be a local index in the HARQ process pool;

(3) the target SPS Config is a union set taken by the HARQ process pool corresponding to the SPS Config involved in a certain serving cell, and the position in the third bitmap may be a local index in the union set;

(4) the position in the third bitmap may be a local index in the union of the HARQ process pools corresponding to the SPS configs involved in the target SPS Config group on the serving cell.

Alternatively, the third bitmap may correspond to only a subset of the process pool or union, and the subset may be configured by a higher layer, or multiple subsets may be configured by a higher layer, and one subset is indicated in the first DCI.

Optionally, multiple HARQ processes with consecutive IDs or local indexes in the HARQ process pool or subset may also correspond to a single bit in the third bitmap, that is, a Bundling (Bundling) manner is used for indication, which is not described herein again.

In some embodiments, when the first indication information includes the first information and does not include the second information, the UE may make any one of the following assumptions:

(1) the SPS Config, the SPS Config set, the SPS Config group or all SPS PDSCH occasions corresponding to the SPS Config set indicated by the first information exist or do not exist valid or invalid SPS PDSCH transmission;

(2) and the SPS PDSCH occasions corresponding to all the HARQ processes configured by the SPS Config, the SPS Config set, the SPS Config group or the SPS Config group set indicated by the first information exist or do not exist valid or invalid SPS PDSCH transmission.

The different understanding angles with respect to (1) and (2) may be more suitable for the case of organizing the HARQ-ACK codebook based on HARQ processes.

HARQ process pools corresponding to different SPS configs configured on the same Serving Cell and BWP may overlap, and when the overlapping exists, SPS PDSCH occupancy corresponding to the HARQ process provided herein may only be for the indicated SPS Config or SPS Config group, or may further include SPS PDSCH occupancy corresponding to the HARQ process applied to other SPS configs or SPS Config groups.

In some embodiments, the third information indicates one or more of:

(1) whether to skip HARQ-ACK corresponding to an SPS PDSCH occasion that does not indicate the presence of a valid SPS PDSCH transmission (or skip indicates the presence of an invalid SPS PDSCH transmission);

(2) whether a Bundling mechanism for HARQ-ACK feedback of SPS PDSCH is turned on;

(3) whether to trigger HARQ-ACK feedback directly.

For (2), when the binding mechanism is indicated to be opened, the binding mechanism related parameters of the application may be further indicated.

The third information may further indicate time-frequency resource information for carrying HARQ-ACK feedback when directly triggered. For example, by triggering a One-time codebook (One-shot codebook) and not scheduling the first DCI of the PDSCH indicates a valid or invalid SPS PDSCH, and directly triggering corresponding HARQ-ACK feedback.

In some embodiments, HARQ-ACK is fed back according to the first DCI.

Example 1, the first DCI indicates a valid SPS PDSCH, see mode 1 or mode 2 below:

mode 1: feeding back HARQ-ACK corresponding to a valid SPS PDSCH corresponding to a first object within a predefined HARQ-ACK feedback range, wherein the first object comprises SPS Config, an SPS Config set, an SPS Config group or an SPS Config group set corresponding to the first DCI; feeding back HARQ-ACK corresponding to all SPS PDSCHs corresponding to a second object, wherein the second object does not comprise SPS Config, an SPS Config set, an SPS Config group or an SPS Config group set corresponding to the first DCI;

optionally, the predefined HARQ-ACK feedback range may be for all SPS Config or SPS Config groups configured or activated for the UE, or for all SPS Config or SPS Config groups configured or activated on respective serving cells corresponding to the PUCCH Cell Group to which the HARQ-ACK feedback corresponds. Alternatively, the predefined HARQ-ACK feedback range may be for all SPS PDSCH occasions for which HARQ-ACK has not been fed back or successfully fed back for the SPS Config or SPS Config group of interest.

Mode 2: and feeding back HARQ-ACK corresponding to the effective SPS PDSCH indicated by the first DCI.

Example 2: the first DCI indicates an invalid SPS PDSCH, see mode 1 or mode 2 below:

mode 1: and within a predefined HARQ-ACK feedback range, not feeding back HARQ-ACK corresponding to invalid SPS PDSCH corresponding to a third object, wherein the third object comprises SPS Config, an SPS Config set, an SPS Config group or an SPS Config group set corresponding to the first information.

Optionally, when organizing the HARQ-ACK codebook, the HARQ-ACK bits corresponding to the HARQ process corresponding to the invalid SPS PDSCH are ignored or skipped, i.e. these HARQ-ACK bits are not included in the HARQ-ACK codebook for the final feedback.

In some embodiments, the first indication information is a Pattern (Pattern) corresponding to a valid or invalid SPS PDSCH.

In some embodiments, the higher layer may configure Pattern corresponding to the valid or invalid SPS PDSCH based on the traffic data arrival characteristics and the SPS Config or parameters of the SPS Config group configured for it. The Pattern configuration can adopt any one of the following modes:

(1) configuring a periodicity and an offset of a valid or invalid SPS PDSCH;

for example, for the SPS PDSCH occupancy aggregate set corresponding to SPS configuration 1, SPS configuration 2, and SPS configuration 3 (which may form an SPS Config group) in fig. 4, one SPS PDSCH occupancy is actually used to transmit the corresponding SPS PDSCH every 25 SPS PDSCH occusions in the aggregate set, so the period may be set to 25, and the offset may be determined based on an offset between an actual time when the traffic data initially arrives and a reference time point, for example, the reference time point may be a starting time corresponding to the first PDSCH transmission after a certain SPS Config (e.g., the SPS Config activated earliest in the configured SPS Config group, or the SPS Config whose index satisfies a certain condition (e.g., minimum/maximum, etc.) is activated.

(2) And configuring an SPS PDSCH opportunity period in a bitmap mode, and indicating that an effective or ineffective SPS PDSCH opportunity or opportunity set exists in the SPS PDSCH opportunity period.

Optionally, the higher layer configures multiple groups of periods and offsets, or multiple patterns in a Bitmap form, and a DCI indicates a certain group of periods and offsets, or a certain Pattern.

It is to be understood that the DCI may be an activation or reactivation DCI for a configured SPS Config, SPS Config set, SPS Config group, or a certain SPS Config in the SPS Config group set, or other DCI that schedules PDSCH or does not schedule PDSCH.

It is understood that, in step 201, the first indication information specifically indicates a valid SPS PDSCH or an invalid SPS PDSCH, and may be defined by a protocol or configured by higher layer signaling, or determined based on a ratio of valid or invalid SPS PDSCHs in SPS PDSCH occupancy corresponding to the configured SPS Config, SPS Config set, SPS Config group, or SPS Config group set.

For example, if a large number or more than half of SPS PDSCH occupancy corresponding to the configured SPS Config, SPS Config set, SPS Config group, or SPS Config group set do not actually transmit SPS PDSCH, the SPS PDSCH is considered to be indicated as valid; if only a small number of SPS PDSCH Ocvasion in the configured SPS Config or the SPS PDSCH Ocvasion corresponding to the SPS Config group does not actually transmit the SPS PDSCH, the indication of invalid SPS PDSCH can be considered, and when the proportion of the SPS PDSCH Ocvasion which does not actually transmit the SPS PDSCH is very small or even can be ignored, the network side does not need to make any indication and executes the indication according to a conventional HARQ-ACK feedback mechanism. By this consideration, the indication overhead can be reduced.

In some embodiments, the method further comprises:

feeding back HARQ-ACK through a first mode if the terminal does not receive the first indication information or if the terminal receives the first indication information;

wherein the first mode includes any one of the following, i.e., (1) or (2) or (3):

(1)No skipping。

no matter which codebook type is adopted, HARQ-ACK corresponding to all SPS PDSCH occupancy is fed back normally, and whether effective SPS PDSCH transmission exists in each SPS PDSCH occupancy is not concerned;

(2) always skip (Always skiping):

when the terminal does not have effective HARQ-ACK needing feedback except the HARQ-ACK corresponding to the ineffective SPS PDSCH (Skippoped SPS PDSCH), not feeding back the HARQ-ACK; when the terminal has effective HARQ-ACK needing feedback, the terminal deletes HARQ-ACK bits aiming at the invalid SPS PDSCH in a feedback HARQ-ACK codebook; the effective HARQ-ACK here can be understood as other HARQ-ACK feedbacks except for the HARQ-ACK corresponding to the invalid SPS PDSCH, and may include HARQ-ACK feedback corresponding to the dynamically scheduled PDSCH, HARQ-ACK feedback corresponding to the SPS PDSCH release, HARQ-ACK feedback corresponding to the effective SPS PDSCH, and the like;

(3) the corresponding HARQ-ACK feedback is skipped in certain cases (skiping for the same case (s)).

In order to avoid the inconsistency of the understandings of the two sides for the whole codebook after the deletion of the HARQ-ACK bits, the HARQ-ACK feedback corresponding to skip is only performed in some specific cases, and optionally, the skipping of the corresponding HARQ-ACK feedback in the specific cases includes one or more of the following (3-1), (3-2), and (3-3):

(3-1) when the HARQ-ACK codebook contains only HARQ-ACKs for the SPS PDSCH, puncturing corresponding HARQ-ACK bits from the HARQ-ACK codebook for the skipped SPS PDSCH;

(3-2) ignoring transmission of the entire HARQ-ACK codebook when the HARQ-ACK codebook contains only HARQ-ACKs for SPS PDSCH and the SPS PDSCH is all skipped SPS PDSCH;

(3-3) when the HARQ-ACK codebook only contains HARQ-ACK aiming at the SPS PDSCH and the HARQ-ACK values are all NACK, ignoring the transmission of the whole HARQ-ACK codebook.

An alternative implementation is: if the terminal does not receive the first indication information, the operation of forbidding skipping (No skipping) (namely (1) can be adopted to avoid the problem of inconsistent understanding of two sides; if the terminal receives the first indication information, an operation of always skipping (i.e., (2) above) may be employed to reduce the HARQ-ACK feedback overhead as much as possible, or an operation of skipping the corresponding HARQ-ACK feedback in a specific case (i.e., (3) above) may be employed to reduce the HARQ-ACK feedback overhead in some cases, avoid the problem of inconsistent understanding of the entire codebook from both sides after HARQ-ACK bit puncturing, or avoid the complexity caused by transmitting and receiving a new codebook type.

In the embodiment of the application, the terminal can accurately know the SPS PDSCH occupancy without actual SPS PDSCH transmission, so that the terminal can feed back NACK aiming at the SPS PDSCH occupancy by skip and only feed back HARQ-ACK aiming at the SPS PDSCH actually transmitted, thereby obviously improving the HARQ-ACK feedback efficiency and reducing uplink resource overhead, terminal uplink power consumption and system uplink interference.

Referring to fig. 3, an embodiment of the present application provides a method for indicating an SPS PDSCH, where an execution subject of the method may be a network side device, and the method includes the specific steps of: step 301.

Step 301: transmitting first indication information indicating a valid or invalid SPS PDSCH.

Optionally, the network side device may trigger periodically or according to needs to dynamically send the first indication information to the terminal.

In this embodiment of the present application, the first indication information is first DCI, and the first DCI indicates a valid or invalid SPS PDSCH. For example, the first DCI may be a group common DCI (group common DCI) or a terminal-specific DCI (ue specific DCI).

In an embodiment of the present application, the first DCI includes one or more of:

(2) second information indicating a range of valid or invalid SPS PDSCHs;

(3) third information for controlling HARQ-ACK feedback of the SPS PDSCH.

In an embodiment of the present application, the first information includes a first bitmap, and the first bitmap includes: a first bit corresponding to the SPS Config, SPS Config set, SPS Config group, or SPS Config group set.

In this embodiment of the present application, the number of bits in the first bitmap is determined by:

mode 1: determining the bit number in the first bitmap based on an SPS Config, an SPS Config set, an SPS Config group or an SPS Config group set configured on a BWP configured by a serving cell corresponding to a current PUCCH cell group;

mode 2: determining the number of bits in the first bitmap based on fifth information configured by a network side, where the fifth information indicates the number of bits in the first bitmap.

In an embodiment of the present application, the first information indicates a first state in a state list, and the first state corresponds to the SPS Config, the SPS Config set, the SPS Config group, or the SPS Config group set.

In embodiments of the application, the range of valid or invalid SPS PDSCHs includes one or more of:

(1) valid or invalid SPS PDSCH occasions;

(2) and the HARQ process corresponding to the SPS PDSCH is valid or invalid.

In an embodiment of the present application, the valid or invalid SPS PDSCH occasions include:

(1) valid or invalid SPS PDSCH occasions based on the indication period indication;

(2) a valid or invalid SPS PDSCH occasion indicated based on a reference point and a first value, the first value representing a count of the valid or invalid SPS PDSCH occasions.

When the network side equipment is realized, the effective or ineffective SPS PDSCH configuration or indication can be ensured to be accurately received by the UE by improving the reliability of PDCCH transmission, and the corresponding PUCCH resource can be reserved only for the compressed HARQ-ACK codebook, so that the utilization efficiency of the system resource can be improved, and the uplink transmission power consumption of the UE and the uplink interference of the system can be reduced.

In addition, the network side device can also flexibly select whether to reduce the PUCCH overhead by paying a certain PDCCH overhead (when only the Pattern configuration mode is adopted, no extra PDCCH overhead exists), or to determine the PUCCH overhead directly according to a normal rule or other rules without paying extra PDCCH overhead.

Optionally, when the network side device expects that there may be a certain PDCCH missed detection probability, the network side device may reserve PUCCH resources for the uncompressed and compressed HARQ-ACK codebooks at the same time, during reception, perform detection on the PUCCH resources corresponding to the compressed HARQ-ACK codebook first, and if the detection fails, may further perform detection on the PUCCH resources corresponding to the uncompressed HARQ-ACK codebook. At the moment, the problem that understanding of HARQ-ACK codebooks at two sides is inconsistent due to PDCCH missed detection can be solved through HARQ-ACK codebook detection with two sizes. Meanwhile, the uplink transmission power consumption of the UE and the uplink interference of the system can be reduced (because PUCCH resources corresponding to the sizes of the two codebooks need to be reserved simultaneously, the utilization efficiency of the system resources cannot be improved).

The first embodiment of the invention: direct trigger HARQ-ACK feedback

When the valid/invalid SPS PDSCH indication information is indicated in DCI (equivalent to the aforementioned first DCI) and HARQ-ACK feedback is simultaneously triggered, the following scheme may be employed.

The DCI may be One-shot codebook feedback triggering DCI which does not schedule PDSCH transmission, triggering HARQ-ACK feedback may use an existing 1-bit triggering field, and an indication of valid or invalid SPS PDSCH indication information (including One or more of information One, information two, information three, and information four) in the DCI may reuse or reinterpret an indication field or an indication bit that is not actually used in the DCI.

(1) For DCI indication.

One or more of the following may be indicated in the DCI:

(a) information one: an SPS Config/SPS Config group or an SPS Config/SPS Config group set in which valid/invalid SPS PDSCH indication information or Pattern information exists;

the following Option 1-1 or Option 1-2 may be employed:

option 1-1: bitmap form

And determining the corresponding relation between each valid bit in the Bitmap and each SPS Config/each SPS Config group.

And determining the bit number of the Bitmap.

Option 1-2: state form

(b) And information II: a range indication of valid/invalid SPS PDSCH;

the following Option 2-1 or Option 2-2 may be employed:

and Option 2-1: indicating valid/invalid SPS PDSCH occupancy;

option 2-1-1: and indicating the effective/ineffective SPS PDSCH occupancy based on the indication period.

Indicating the determination of the length of the period.

Indicating the determination of the start and end positions of the cycle.

Indicating the manner of valid/invalid SPS PDSCH transmission for the target SPS Config within the indicated period.

Option 2-1-2: indicating valid/invalid SPS PDSCH occupancy based on the reference point and the SPS PDSCH occupancy count.

And Option 2-2: and indicating the HARQ process corresponding to the SPS PDSCH which is valid/invalid.

(c) And (3) information three: pattern indication of valid/invalid SPS PDSCH.

A single set of patterns is selected from at least one set of patterns configured at a higher level. Pattern can use some of the following:

a period and an offset;

bitmap form indication period and one or more SPS PDSCH occupancy therein

(d) And information four: feeding back auxiliary information

Information controlling HARQ-ACK feedback behavior.

It is understood that the first information corresponds to the first information, the second information corresponds to the second information, and the fourth information corresponds to the third information. Accordingly, the indication modes or the various options of the indication modes of the first information, the second information and the third information can also directly follow the corresponding operations of the indication modes or the corresponding options of the indication modes of the first information, the second information and the third information.

(2) Regarding codebook organization:

when the valid SPS PDSCH information is indicated in the DCI, organizing the HARQ-ACK codebook based on the indication information may take any of the following ways:

(a) within a predefined HARQ-ACK feedback range, feeding back only HARQ-ACK corresponding to the effective SPS PDSCH corresponding to the SPS Config or the SPS Config group involved in the indication information; feeding back HARQ-ACKs corresponding to all SPS PDSCHs corresponding to the SPS Config or the SPS Config group which is not involved in the indication information;

(b) and feeding back only HARQ-ACK corresponding to the indicated effective SPS PDSCH.

When invalid SPS PDSCH information is indicated in DCI, organizing the HARQ-ACK codebook based on the indication information may take the following form:

(a) within a predefined HARQ-ACK feedback range, not feeding back HARQ-ACK corresponding to the invalid SPS PDSCH corresponding to the SPS Config or the SPS Config group involved in the indication information; and feeding back HARQ-ACK corresponding to all SPS PDSCHs corresponding to the indication information for the SPS Config or the SPS Config group which is not involved in the indication information.

The following explains the organization of HARQ-ACK Codebook, taking as an example that the DCI indicates the effective SPS PDSCH information and only the HARQ-ACK corresponding to the effective SPS PDSCH is fed back.

Regarding the codebook structure:

when organizing the HARQ-ACK Codebook, any one of the following a or B may be adopted:

(A) organizing HARQ-ACK Codebook based on SPS PDSCH occupancy;

the codebook may be organized based on the following traversal order:

(a) firstly, traversing each SPS PDSCH Ocvasion corresponding to a certain SPS Config or a certain SPS Config group;

(b) secondly, traversing each SPS Config or each SPS Config group configured or activated on a certain service cell;

(c) and finally, traversing each service Cell configured by the UE, or traversing each service Cell configured by the UE in the current PUCCH Cell Group.

The above-mentioned SPS configs or SPS Config groups configured or activated on each serving cell may be determined based on information one indicated in DCI, or when information one is not indicated in DCI, based on the following predefined first rule. The traversal may be from small to large or from large to small based on the index or ID of the SPS Config or SPS Config group.

The predefined first rule may employ any one of:

(1) all SPS Config or SPS Config groups configured or activated for the UE need to feed back corresponding HARQ-ACK;

(2) all SPS Config or SPS Config groups configured or activated on the carrier where the UE transmits the DCI need to feed back corresponding HARQ-ACK;

(3) all SPS Config or SPS Config groups configured or activated for the UE on the Carrier indicated by the DCI (e.g., indicated by a "Carrier indicator" field) need to feed back the corresponding HARQ-ACK.

The above-mentioned traversal of each SPS Config or each SPS PDSCH occupancy corresponding to each SPS Config group may be based on information two indicated in the DCI, or when information two is not indicated in the DCI, may be determined based on the following predefined second rule. The traversal duration may feedback HARQ-ACKs corresponding to respective SPS PDSCH occupancy based on SPS PDSCH occupancy from front to back or back to front or other predefined order. For the SPS Config set, the SPS PDSCH occupancy may be traversed on its own for each SPS Config it contains; optionally, SPS PDSCH occupancy sets that need to feed back HARQ-ACK are determined for each SPS Config included in the SPS PDSCH acquisition, then a union set is taken from the SPS PDSCH occupancy sets, and each SPS PDSCH occupancy in the union set is arranged according to a time sequence, and then the foregoing traversal is performed.

The predefined second rule may employ any one of:

(1) all SPS PDSCH Ocvasion which does not feed back HARQ-ACK due to resource direction conflict needs to feed back corresponding HARQ-ACK;

(2) all SPS PDSCH occupancy with the time interval between the indicated PUCCH Transmission occupancy not exceeding the maximum value of K1 of the high-layer semi-persistent configuration need to feed back the corresponding HARQ-ACK.

When traversing each serving cell, only the serving cells having the SPS Config or SPS Config group that actually need to feed back the corresponding HARQ-ACK may be traversed. The traversal may proceed from small to large or from large to small based on the index or ID of the serving cell.

(B) Based on HARQ processes

The codebook may be organized based on the following traversal order:

(1) firstly traversing a certain SPS Config or each HARQ process corresponding to a certain SPS Config group;

(2) secondly, traversing each SPS Config or each SPS Config group configured or activated on a certain service cell;

(3) and finally, traversing each service Cell configured by the UE, or traversing each service Cell configured by the UE in the current PUCCH Cell Group.

Or, the UE directly merges HARQ processes that need to feed back HARQ-ACK on a certain serving cell, and organizes a codebook based on the following traversal order:

(1) traversing each HARQ process needing to feed back HARQ-ACK on a certain serving cell;

(2) and then traversing each service Cell configured by the UE, or traversing each service Cell configured by the UE in the current PUCCH Cell Group.

The above-mentioned SPS configs or SPS Config groups configured or activated on each serving cell may be determined based on information one indicated in the DCI, or based on the aforementioned predefined first rule when information one is not indicated in the DCI. The traversal may be from small to large or from large to small based on the index or ID of the SPS Config or SPS Config group.

The foregoing may be determined based on the second information indicated in the DCI when traversing each HARQ process corresponding to each SPS Config or each SPS Config group, or for each SPS Config or each SPS Config group on a certain serving cell, the HARQ process merging set that needs to feed back HARQ-ACK is traversed, or based on the following predefined third rule when the second information is not indicated in the DCI. The traversal may be made from small to large or from large to small based on the index or ID of the HARQ process. For the SPS Config group, HARQ processes may be traversed individually for each SPS Config it contains; alternatively, the HARQ process sets corresponding to the SPS configs included in the HARQ process set may be determined first, then a union set is taken for the HARQ process sets, and the HARQ processes in the union set are arranged from small to large or from large to small according to the index or the ID, and then the foregoing traversal is performed.

The predefined third rule may include:

consider all HARQ processes configured for an SPS Config or SPS Config group.

Regarding the codebook content:

based on the prior art, the One-shot codebook (i.e. the One-time codebook) can be configured by a high layer to report a New Data Indication (NDI), when the reporting NDI is configured, when feeding back the HARQ-ACK of each HARQ process, it is necessary to report its corresponding NDI at the same time, when the reporting NDI is not configured, if the HARQ-ACK of a certain HARQ process has been fed back before, the HARQ-ACK of the HARQ process is reset to NACK when feeding back again.

Here, the transmissions corresponding to the SPS PDSCH may all be assumed to be initial transmissions, so the NDI reporting configuration of One-shot Codebook may be omitted, and only the HARQ-ACK corresponding to the SPS PDSCH is reported at any time, and the NDI corresponding to the SPS PDSCH is not reported. In addition, it can be assumed that the base station does not perform blind scheduling until receiving the HARQ-ACK of a certain HARQ process, so that the decoding result of the SPS PDSCH corresponding to the HARQ process can be always based on the HARQ-ACK of the certain HARQ process when reporting the HARQ-ACK of the certain HARQ process without considering the NACK reset operation.

This embodiment may directly trigger HARQ-ACK feedback based on valid or invalid SPS PDSCH indication information to mitigate HARQ-ACK feedback overhead and reduce HARQ-ACK feedback latency. In addition, this embodiment may also be used in any scenario in which part or all of the HARQ-ACKs of the SPS Config, the SPS Config set, the SPS Config group, or the SPS Config group set are specified to be triggered as needed, and a flexible manner is provided for a network side device (such as a base station) to acquire HARQ-ACKs corresponding to the SPS PDSCH as needed.

Referring to fig. 5, an embodiment of the present application provides an apparatus for indicating an SPS PDSCH, where the apparatus 500 includes:

a receiving module 501, configured to receive first indication information, where the first indication information indicates a valid SPS PDSCH or an invalid SPS PDSCH.

In some embodiments, the first DCI is a group-common DCI or a terminal-specific DCI.

In some embodiments, the first DCI comprises one or more of:

first information indicating a semi persistent scheduling configuration, SPS Config set, SPS Config group, or SPS Config group set, information determining a valid or invalid SPS PDSCH based on the SPS Config, SPS Config set, SPS Config group, or SPS Config group set;

second information indicating a range of valid or invalid SPS PDSCHs;

third information for controlling HARQ-ACK feedback of the SPS PDSCH.

In some embodiments, the first information comprises a first bitmap comprising: a first bit corresponding to the SPS Config, SPS Config set, SPS Config group, or SPS Config group set.

In some embodiments, a value of the first bit is used to determine whether an SPS Config, a set of SPS configs, or a set of SPS configs corresponding to the first bit is indicated in the first DCI.

In some embodiments, the position of the first bit in the first bitmap is determined by:

determining a position of the first bit in the first bitmap based on an index of an SPS Config, a set of SPS Config, or a set of SPS Config groups corresponding to the first bit;

alternatively, the first and second electrodes may be,

and based on fourth information configured by the network side, the fourth information indicates the position of the first bit corresponding to the SPS Config, the SPS Config set, the SPS Config group or the SPS Config group set in the first bitmap.

In some embodiments, determining the position of the first bit in the first bitmap based on an index of the SPS Config, set of SPS configs, or set of SPS Config groups corresponding to the first bit comprises:

determining a position of the first bit in the first bitmap based on an index of the SPS Config, SPS Config set, SPS Config group, or SPS Config group set corresponding to the first bit and a serving cell index corresponding to the SPS Config, SPS Config set, SPS Config group, or SPS Config group set.

In some embodiments, the number of bits in the first bitmap is determined by:

determining the bit number of the first bitmap based on an SPS Config, an SPS Config set, an SPS Config group or an SPS Config group set configured on a BWP configured by a serving cell corresponding to a current PUCCH cell group;

alternatively, the first and second electrodes may be,

determining the bit number of the first bitmap based on fifth information configured on a network side, wherein the fifth information indicates the bit number of the first bitmap.

In some embodiments, the first information indicates a first state in a state list, the first state corresponding to the SPS Config, SPS Config set, SPS Config group, or SPS Config group set.

In some embodiments, the second information indicates, for each SPS Config, set of SPS configs, or set of SPS configs, a range of valid or invalid SPS PDSCHs, respectively, if the first information is included in the first DCI;

alternatively, the first and second electrodes may be,

the second information collectively indicates a range of valid or invalid SPS PDSCHs for all SPS Config, SPS Config set, SPS Config group, or SPS Config group set, if the first information is not included in the first DCI.

In some embodiments, the range of valid or invalid SPS PDSCHs includes one or more of:

valid or invalid SPS PDSCH occasions;

and the HARQ process corresponding to the SPS PDSCH is valid or invalid.

In some embodiments, the valid or invalid SPS PDSCH occasions include:

valid or invalid SPS PDSCH occasions based on the indication period indication;

alternatively, the first and second electrodes may be,

a valid or invalid SPS PDSCH occasion indicated based on a reference point and a first value, the first value representing a count of the valid or invalid SPS PDSCH occasions.

the length of the indication period is equal to the length of a detection period of the first DCI;

the length of the indication period is N times of the length of the detection period of the first DCI, wherein N is a positive integer;

the length of the indication period comprises the length of a detection period and an adjustment length of the first DCI;

the length of the indication period is agreed by a protocol or configured by a network side.

the first DCI detects the ending time of a first symbol of a control resource set CORESET where the first DCI is located;

the first DCI detects the ending time of the X1 th symbol before the first symbol of the CORESET;

the first DCI detects the end time of the last symbol of the CORESET;

the first DCI detects the ending time of the Y1 th symbol after the last symbol of the CORESET;

wherein X1 and Y1 are positive integers.

the first DCI detects the end time of the first symbol of the CORESET;

the first DCI detects the ending time of the X2 th symbol before the first symbol of the CORESET;

the first DCI detects the end time of the last symbol of the CORESET;

the first DCI detects the ending time of the Y2 th symbol after the last symbol of the CORESET;

wherein X2 and Y2 are positive integers.

In some embodiments, the second information further indicates that there is an SPS PDSCH occasion index or set of indices for valid or invalid SPS PDSCH transmissions.

In some embodiments, the second information includes a second bitmap, the second bitmap including a second bit indicating one or more SPS PDSCH occasions where there is a valid or invalid SPS PDSCH transmission.

In some embodiments, the reference point is determined by any one of:

the first DCI detects the starting time of the first symbol of the CORESET;

the first DCI detects the starting time of the X3 th symbol before the first symbol of the CORESET;

the first DCI detects the end time of the last symbol of the CORESET;

the first DCI detects the ending time of the Y3 th symbol after the last symbol of the CORESET;

starting time or ending time of HARQ-ACK feedback resources indicated in the first DCI;

starting time or ending time of a time domain unit where HARQ-ACK feedback resources indicated in the first DCI are located;

wherein X3 and Y3 are positive integers.

In some embodiments, the first value is determined using any one of:

network side configuration;

determining based on a value set configured on a network side and sixth information carried in the first DCI, wherein the sixth information indicates one value in the value set;

and (5) protocol agreement.

alternatively, the first and second electrodes may be,

the second information includes: a third bitmap, where the third bitmap includes a third bit, and a value of the third bit indicates whether a HARQ process corresponding to the third bit corresponds to a valid or invalid SPS PDSCH.

In some embodiments, when the first indication information includes the first information and does not include the second information, all SPS PDSCH occasions corresponding to the SPS Config, SPS Config set, SPS Config group, or SPS Config group set indicated by the first information may or may not have valid or invalid SPS PDSCH transmissions;

or, the SPS Config set, the SPS Config group, or the SPS PDSCH occasions corresponding to all HARQ processes configured by the SPS Config group set indicated by the first information may or may not have valid or invalid SPS PDSCH transmission.

In some embodiments, the third information indicates one or more of:

whether to skip HARQ-ACK corresponding to SPS PDSCH opportunity which does not indicate that effective SPS PDSCH transmission exists or whether to skip HARQ-ACK corresponding to SPS PDSCH opportunity which indicates that ineffective SPS PDSCH transmission exists;

whether to turn on a binding mechanism for HARQ-ACK feedback for an active or inactive SPS PDSCH;

whether to trigger HARQ-ACK feedback directly.

In some embodiments, the apparatus 500 further comprises:

and the feedback module is used for feeding back HARQ-ACK according to the first DCI.

In some embodiments, the first DCI indicates a valid SPS PDSCH, the feedback module further to: feeding back HARQ-ACK corresponding to a valid SPS PDSCH corresponding to a first object within a predefined HARQ-ACK feedback range, wherein the first object comprises SPS Config, an SPS Config set, an SPS Config group or an SPS Config group set corresponding to the first DCI; feeding back HARQ-ACK corresponding to all SPS PDSCHs corresponding to a second object, wherein the second object does not comprise SPS Config, an SPS Config set, an SPS Config group or an SPS Config group set corresponding to the first DCI; or feeding back HARQ-ACK corresponding to the effective SPS PDSCH indicated by the first DCI.

In some embodiments, the first DCI indicates an invalid SPS PDSCH, the feedback module further to: and within a predefined HARQ-ACK feedback range, not feeding back HARQ-ACK corresponding to invalid SPS PDSCH corresponding to a third object, wherein the third object comprises SPS Config, an SPS Config set, an SPS Config group or an SPS Config group set corresponding to the first information.

In some embodiments, the first DCI is a DCI that triggers One-shot codebook and does not schedule a PDSCH.

In some embodiments, the first indication information is a pattern corresponding to a valid or invalid SPS PDSCH.

In some embodiments, the mode configuration comprises:

configuring a periodicity and an offset of a valid or invalid SPS PDSCH;

and configuring an SPS PDSCH opportunity period in a bitmap mode, and indicating that an effective or ineffective SPS PDSCH opportunity or an opportunity set exists in the SPS PDSCH opportunity period.

In some embodiments, the apparatus further comprises:

a first feedback module, configured to feed back HARQ-ACK in a first manner if the terminal does not receive the first indication information or if the terminal receives the first indication information;

wherein the first mode comprises:

feeding back HARQ-ACK corresponding to all SPS PDSCH occasions;

alternatively, the first and second electrodes may be,

when the terminal does not have effective HARQ-ACK and needs feedback except the HARQ-ACK corresponding to the invalid SPS PDSCH, not feeding back the HARQ-ACK; when the terminal has effective HARQ-ACK needing feedback, the terminal deletes HARQ-ACK bits aiming at the invalid SPS PDSCH in a feedback HARQ-ACK codebook;

alternatively, the first and second electrodes may be,

the corresponding HARQ-ACK feedback is skipped in certain cases.

In some embodiments, the skipping of the corresponding HARQ-ACK feedback in a particular case includes one or more of:

when the HARQ-ACK codebook contains only HARQ-ACKs for the SPS PDSCH, truncating corresponding HARQ-ACK bits from the HARQ-ACK codebook for the skipped SPS PDSCH;

ignoring transmission of the entire HARQ-ACK codebook when the HARQ-ACK codebook contains only HARQ-ACKs for SPS PDSCH and the SPS PDSCH is all skipped SPS PDSCH;

and when the HARQ-ACK codebook only contains HARQ-ACK aiming at the SPS PDSCH and the HARQ-ACK values are all NACK, ignoring the transmission of the whole HARQ-ACK codebook.

The device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 2, and achieve the same technical effect, and for avoiding repetition, details are not described here again.

Referring to fig. 6, an apparatus for indicating an SPS PDSCH is provided in an embodiment of the present application, where the apparatus 600 includes:

a sending module 601, configured to send first indication information, where the first indication information indicates a valid SPS PDSCH or an invalid SPS PDSCH.

In some embodiments, the first DCI comprises one or more of:

second information indicating a range of valid or invalid SPS PDSCHs;

third information for controlling HARQ-ACK feedback of the SPS PDSCH.

In some embodiments, the first information comprises a first bitmap comprising: a first bit corresponding to an SPS Config, a set of SPS configs, or a set of SPS Config groups.

In some embodiments, the number of bits in the first bitmap is determined by:

determining the bit number in the first bitmap based on an SPS Config, an SPS Config set, an SPS Config group or an SPS Config group set configured on a BWP configured by a serving cell corresponding to a current PUCCH cell group;

alternatively, the first and second electrodes may be,

determining the number of bits in the first bitmap based on fifth information configured by a network side, where the fifth information indicates the number of bits in the first bitmap.

valid or invalid SPS PDSCH occasions;

and the HARQ process corresponding to the SPS PDSCH is valid or invalid.

In some embodiments, the valid or invalid SPS PDSCH occasions include:

valid or invalid SPS PDSCH occasions based on the indication period indication;

alternatively, the first and second electrodes may be,

The device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 3, and achieve the same technical effect, and for avoiding repetition, details are not described here again.

Fig. 7 is a schematic diagram of a hardware structure of a terminal for implementing the embodiment of the present application.

The terminal 700 includes, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710.

Those skilled in the art will appreciate that the terminal 700 may further include a power supply (e.g., a battery) for supplying power to various components, which may be logically connected to the processor 710 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system. The terminal structure shown in fig. 7 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and will not be described again here.

It should be understood that in the embodiment of the present application, the input Unit 704 may include a Graphics Processing Unit (GPU) 7041 and a microphone 7042, and the Graphics Processing Unit 7041 processes image data of still pictures or videos obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 5807 includes a touch panel 7071 and other input devices 7072. The touch panel 7071 is also referred to as a touch screen. The touch panel 7071 may include two parts of a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

In the embodiment of the present application, the radio frequency unit 701 receives downlink data from a network side device and then processes the downlink data in the processor 710; in addition, the uplink data is sent to the network side equipment. In general, radio frequency unit 701 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.

The memory 709 may be used to store software programs or instructions as well as various data. The memory 5809 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 709 may include a high-speed random access Memory and a nonvolatile Memory, where the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 710 may include one or more processing units; alternatively, processor 710 may integrate an application processor that handles primarily the operating system, user interface, and application programs or instructions, etc. and a modem processor that handles primarily wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into processor 710.

The terminal provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 2, and achieve the same technical effect, and for avoiding repetition, details are not described here again.

The embodiment of the application also provides network side equipment. As shown in fig. 8, the network-side device 800 includes: antenna 801, radio frequency device 802, baseband device 803. The antenna 801 is connected to a radio frequency device 802. In the uplink direction, the rf device 802 receives information via the antenna 801 and sends the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes information to be transmitted and transmits the information to the radio frequency device 802, and the radio frequency device 802 processes the received information and transmits the processed information through the antenna 801.

The above band processing means may be located in the baseband means 803, and the method performed by the network side device in the above embodiment may be implemented in the baseband means 803, where the baseband means 803 includes a processor 804 and a memory 805.

The baseband apparatus 803 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 8, where one chip, for example, the processor 804, is connected to the memory 805 to call up the program in the memory 805 to perform the network device operations shown in the above method embodiments.

The baseband device 803 may further include a network interface 806, such as a Common Public Radio Interface (CPRI), for exchanging information with the radio frequency device 802.

Specifically, the network side device in the embodiment of the present application further includes: the instructions or programs stored in the memory 805 and capable of being executed on the processor 804, and the processor 804 calls the instructions or programs in the memory 805 to execute the methods executed by the modules shown in fig. 6, and achieve the same technical effects, which are not described herein for avoiding repetition.

Embodiments of the present application also provide a program product stored on a non-volatile storage medium for execution by at least one processor to implement the steps of a method of processing as described in fig. 2 or fig. 3.

An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the method embodiment shown in fig. 2 or fig. 3, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a network-side device program or an instruction, to implement each process of the method embodiment shown in fig. 2, and can achieve the same technical effect, and details are not repeated here to avoid repetition.

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

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

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

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A method for indicating a semi-persistent scheduling (SPS) Physical Downlink Shared Channel (PDSCH) is applied to a terminal and is characterized by comprising the following steps:

receiving first indication information indicating a valid or invalid SPS PDSCH.

2. The method of claim 1, wherein the first indication information is first Downlink Control Information (DCI), and wherein the first DCI indicates a valid or invalid SPS PDSCH.

3. The method of claim 2, wherein the first DCI is a group-common DCI or a terminal-specific DCI.

4. The method of claim 2, wherein the first DCI comprises one or more of:

second information indicating a range of valid or invalid SPS PDSCHs;

and the third information is used for controlling hybrid automatic repeat request-acknowledgement (HARQ-ACK) feedback of the SPS PDSCH.

5. The method of claim 4, wherein the first information comprises a first bitmap, and wherein the first bitmap comprises: a first bit corresponding to an SPS Config, a set of SPS configs, or a set of SPS Config groups.

6. The method of claim 5, wherein a value of the first bit is used to determine whether the first DCI indicates an SPS Config, a set of SPS Config, or a set of SPS Config corresponding to the first bit.

7. The method of claim 5, wherein the position of the first bit in the first bitmap is determined by:

alternatively, the first and second electrodes may be,

8. The method of claim 7, wherein determining the position of the first bit in the first bitmap based on an index of the SPS Config, SPS Config set, SPS Config group, or SPS Config group set corresponding to the first bit comprises:

9. The method of claim 5, wherein the number of bits in the first bitmap is determined by:

determining the bit number of the first bitmap based on an SPS Config, an SPS Config set, an SPS Config group or an SPS Config group set configured on a bandwidth part BWP configured by a service cell corresponding to a current Physical Uplink Control Channel (PUCCH) cell group;

alternatively, the first and second electrodes may be,

10. The method of claim 4, wherein the first information indicates a first state in a state list, and wherein the first state corresponds to the SPS Config, the SPS Config set, the SPS Config group, or the SPS Config group set.

11. The method of claim 4, wherein the second information indicates, for each SPS Config, set of SPS Config group, or set of SPS Config group, a range of valid or invalid SPS PDSCH, respectively, if the first information is included in the first DCI;

alternatively, the first and second electrodes may be,

12. The method of claim 11, wherein the range of valid or invalid SPS PDSCHs comprises one or more of:

valid or invalid SPS PDSCH occasions;

and the HARQ process corresponding to the SPS PDSCH is valid or invalid.

13. The method of claim 12, wherein the valid or invalid SPS PDSCH occasions comprise:

valid or invalid SPS PDSCH occasions based on the indication period indication;

alternatively, the first and second electrodes may be,

14. The method of claim 13, wherein the length of the indication period is determined by any one of:

15. The method of claim 13, wherein the indicating the end position of the period comprises any one of:

the first DCI detects the end time of the last symbol of the CORESET;

wherein X1 and Y1 are positive integers.

16. The method of claim 13, wherein the starting position of the indication period comprises any one of:

the first DCI detects the end time of the first symbol of the CORESET;

the first DCI detects the end time of the last symbol of the CORESET;

wherein X2 and Y2 are positive integers.

17. The method of claim 12, wherein the second information further indicates that there is an SPS PDSCH occasion index or set of indices for valid or invalid SPS PDSCH transmissions.

18. The method of claim 12, wherein the second information comprises a second bitmap, wherein the second bitmap comprises a second bit indicating one or more SPS PDSCH occasions where there is a valid or invalid SPS PDSCH transmission.

19. The method of claim 13, wherein the reference point is determined by any one of:

the first DCI detects the starting time of the first symbol of the CORESET;

the first DCI detects the end time of the last symbol of the CORESET;

wherein X3 and Y3 are positive integers.

20. The method of claim 13, wherein the first value is determined by any one of:

network side configuration;

and (5) protocol agreement.

21. The method of claim 12, wherein the second information indicates: the HARQ process index or HARQ process index set corresponding to the SPS PDSCH is valid or invalid;

alternatively, the first and second electrodes may be,

22. The method of claim 4, wherein when the first indication information includes the first information and does not include the second information, all SPS PDSCH occasions corresponding to the SPS Config, the SPS Config set, the SPS Config group or the SPS Config group set indicated by the first information have valid or invalid SPS PDSCH transmission;

23. The method of claim 4, wherein the third information indicates one or more of:

whether to start a binding mechanism of HARQ-ACK feedback of the SPS PDSCH;

whether to trigger HARQ-ACK feedback directly.

24. The method of claim 2, further comprising:

and feeding back HARQ-ACK according to the first DCI.

25. The method of claim 24, wherein the first DCI indicates a valid SPS PDSCH, and wherein feeding back HARQ-ACKs according to the first DCI comprises:

feeding back HARQ-ACK corresponding to a valid SPS PDSCH corresponding to a first object within a predefined HARQ-ACK feedback range, wherein the first object comprises SPS Config, an SPS Config set, an SPS Config group or an SPS Config group set corresponding to the first DCI; feeding back HARQ-ACK corresponding to all SPS PDSCHs corresponding to a second object, wherein the second object does not comprise SPS Config, an SPS Config set, an SPS Config group or an SPS Config group set corresponding to the first DCI;

alternatively, the first and second electrodes may be,

and feeding back HARQ-ACK corresponding to the effective SPS PDSCH indicated by the first DCI.

26. The method of claim 24, wherein the first DCI indicates an invalid SPS PDSCH, and wherein feeding back HARQ-ACKs according to the first DCI comprises:

and within a predefined HARQ-ACK feedback range, not feeding back HARQ-ACK corresponding to invalid SPS PDSCH corresponding to a third object, wherein the third object comprises SPS Config, an SPS Config set, an SPS Config group or an SPS Config group set corresponding to the first information.

27. The method of claim 24, 25 or 26, wherein the first DCI is a DCI that triggers a one-time codebook and does not schedule a PDSCH.

28. The method of claim 1, wherein the first indication information is a pattern corresponding to a valid or invalid SPS PDSCH.

29. The method of claim 28, wherein the mode is configured in a manner comprising:

configuring a periodicity and an offset of a valid or invalid SPS PDSCH;

and configuring an SPS PDSCH opportunity period in a bitmap mode, and indicating that an effective or ineffective SPS PDSCH opportunity or opportunity set exists in the SPS PDSCH opportunity period.

30. The method of claim 1, further comprising:

if the terminal does not receive or receives the first indication information, feeding back HARQ-ACK through a first mode;

wherein the first mode comprises:

feeding back HARQ-ACK corresponding to all SPS PDSCH occasions;

alternatively, the first and second electrodes may be,

the corresponding HARQ-ACK feedback is skipped in certain cases.

31. The method of claim 30, wherein skipping the corresponding HARQ-ACK feedback in a particular case comprises one or more of:

32. A method for indicating SPS PDSCH is applied to a network side device, and is characterized by comprising the following steps:

33. The method of claim 32, wherein the first indication information is a first DCI, and wherein the first DCI indicates a valid or invalid SPS PDSCH.

34. The method of claim 33, wherein the first DCI comprises one or more of:

second information indicating a range of valid or invalid SPS PDSCHs;

third information for controlling HARQ-ACK feedback of the SPS PDSCH.

35. The method of claim 34, wherein the first information comprises a first bitmap, the first bitmap comprising: a first bit corresponding to an SPS Config, a set of SPS configs, or a set of SPS Config groups.

36. The method of claim 35, wherein the number of bits in the first bitmap is determined by:

alternatively, the first and second electrodes may be,

37. The method of claim 34, wherein the first information indicates a first state in a state list, wherein the first state corresponds to the SPS Config, the set of SPS Config groups, or the set of SPS Config groups.

38. The method of claim 35, wherein the range of valid or invalid SPS PDSCHs comprises one or more of:

valid or invalid SPS PDSCH occasions;

and the HARQ process corresponding to the SPS PDSCH is valid or invalid.

39. The method of claim 38, wherein the valid or invalid SPS PDSCH occasions comprise:

valid or invalid SPS PDSCH occasions based on the indication period indication;

alternatively, the first and second electrodes may be,

40. An apparatus for indicating SPS PDSCH, applied to a terminal, comprising:

41. An apparatus for indicating SPS PDSCH, applied to a network side device, comprising:

42. A terminal, comprising: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method of any one of claims 1 to 31.

43. A network-side device, comprising: processor, memory and program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method according to any one of claims 32 to 39.

44. A readable storage medium, on which a program or instructions are stored which, when executed by a processor, carry out the steps of the method according to any one of claims 1 to 39.