WO2023050436A1 - 信息反馈方法以及装置 - Google Patents
信息反馈方法以及装置 Download PDFInfo
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- WO2023050436A1 WO2023050436A1 PCT/CN2021/122477 CN2021122477W WO2023050436A1 WO 2023050436 A1 WO2023050436 A1 WO 2023050436A1 CN 2021122477 W CN2021122477 W CN 2021122477W WO 2023050436 A1 WO2023050436 A1 WO 2023050436A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1614—Details of the supervisory signal using bitmaps
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1822—Automatic repetition systems, e.g. Van Duuren systems involving configuration of automatic repeat request [ARQ] with parallel processes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1896—ARQ related signaling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
- H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1854—Scheduling and prioritising arrangements
Definitions
- the embodiment of the present application relates to the technical field of communication.
- a Physical Downlink Shared Channel is a type of physical downlink channel in a wireless communication system and is used to carry downlink data.
- the PDSCH may be scheduled through downlink control information (DCI).
- the DCI used to schedule the PDSCH includes at least information indicating the resources of the PDSCH.
- DCI formats formats for scheduling PDSCH are defined, such as DCI format 1_0, DCI format 1_1, DCI format 1_2, and the specific DCIs of different DCI formats include The information and/or size are different to meet different scheduling needs.
- Non-Terrestrial Networks is a topic being discussed by the International Standardization Organization 3GPP.
- NTN Non-Terrestrial Networks
- HARQ Hybrid Automatic Repeat reQuest
- 3GPP is discussing how to extend the NR system to 71GHz.
- PDDCH Physical Downlink Control Channel
- PDDCH Physical Downlink Control Channel
- embodiments of the present application provide an information feedback method and device.
- an information feedback device which is applied to a terminal device, and the device includes:
- a first receiving unit which receives at least one downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH), and the DCI schedules one or more PDSCHs, wherein the one or more PDSCHs include at least one
- the corresponding HARQ process is a feedback-enabled or feedback-disabled PDSCH;
- a first sending unit which sends HARQ feedback information for one or more PDSCHSs.
- an information feedback device which is applied to a terminal device, and the device includes:
- the second receiving unit receives fourth downlink control information (DCI), where the fourth DCI includes accumulated DAI information and/or total DAI information;
- DCI downlink control information
- a first determining unit configured to determine HARQ feedback information according to the accumulated DAI information and/or total DAI information.
- an information feedback device which is applied to a terminal device, and the device includes:
- a fourth receiving unit which receives DCI for scheduling PDSCH
- the third determining unit is configured to determine the time domain position for sending the HARQ feedback information of the DCI scheduled PDSCH according to the time domain position of the last PDSCH corresponding to the HARQ feedback enabled HARQ process of the DCI scheduling;
- the second sending unit is configured to send the HARQ feedback information of the PDSCH scheduled by the DCI at the determined time domain position.
- the HARQ feedback information can be sent or not sent under the condition of supporting the HARQ feedback enable/disable HARQ mechanism; therefore, the uplink control signaling overhead can be reduced, and at the same time, the network equipment does not need Waiting for the terminal device to report the HARQ feedback information, the new data can be sent, thereby reducing the data transmission delay.
- HARQ feedback information can be sent or not sent while simultaneously supporting the HARQ mechanism of enabling/disabling HARQ feedback and the scheduling method of scheduling multiple PDSCHs through one DCI; therefore, It can not only reduce the number of PDCCH monitoring of the terminal equipment to reduce the complexity and power consumption of the terminal equipment to monitor the PDCCH, but also reduce the resource overhead for sending downlink control signaling (DCI) to improve data throughput; on the other hand , can reduce uplink control signaling overhead, and at the same time, the network device can send new data without waiting for the terminal device to report HARQ feedback information, thereby reducing the data transmission delay.
- DCI downlink control signaling
- Fig. 1 is the schematic diagram of the communication system of the embodiment of the present application.
- FIG. 2 is a schematic diagram of an information feedback method according to an embodiment of the present application.
- FIG. 3 is a schematic diagram of an information feedback method according to an embodiment of the present application.
- FIG. 4 to Figure 11 are schematic diagrams of DAI counting in the embodiment of the present application.
- FIG. 12 to FIG. 13 are schematic diagrams of positions of feedback time slots according to embodiments of the present application.
- FIG. 14 is a schematic diagram of an information feedback method according to an embodiment of the present application.
- 15A to 15C are schematic diagrams of C-TAI and T-DAI of the embodiments of the present application.
- FIG. 16 is a schematic diagram of an information feedback method according to an embodiment of the present application.
- FIG. 17 is a schematic diagram of an information receiving method according to an embodiment of the present application.
- FIG. 18 is a schematic diagram of an information receiving method according to an embodiment of the present application.
- 19 to 22 are schematic diagrams of an information feedback device according to an embodiment of the present application.
- 23 to 25 are schematic diagrams of an information receiving device according to an embodiment of the present application.
- FIG. 26 is a schematic diagram of a terminal device according to an embodiment of the present application.
- FIG. 27 is a schematic diagram of a network device according to an embodiment of the present application.
- 28A to 28D are schematic diagrams of DAI counting in the embodiment of the present application.
- 29A to 29C are schematic diagrams of DAI counting in the embodiment of the present application.
- FIGS. 30A to 30C are schematic diagrams of DAI counting in the embodiment of the present application.
- 31A to 31C are schematic diagrams of C-TAI and T-DAI of the embodiments of the present application.
- 32A to 32D are schematic diagrams of C-TAI and T-DAI of the embodiments of the present application.
- 33A to 33D are schematic diagrams of C-TAI and T-DAI of the embodiments of the present application.
- 34A to 34B are schematic diagrams of C-TAI and T-DAI of the embodiments of the present application.
- 35A to 35C are schematic diagrams of C-TAI and T-DAI of the embodiments of the present application.
- FIG. 36A to FIG. 36D are schematic diagrams of PDSCHs scheduled by DCI in an embodiment of the present application.
- the terms “first”, “second”, etc. are used to distinguish different elements from the title, but do not indicate the spatial arrangement or time order of these elements, and these elements should not be referred to by these terms restricted.
- the term “and/or” includes any and all combinations of one or more of the associated listed items.
- the terms “comprising”, “including”, “having” and the like refer to the presence of stated features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.
- the term “communication network” or “wireless communication network” may refer to a network conforming to any of the following communication standards, such as long-term evolution (LTE), enhanced long-term evolution (LTE-A, LTE-Advanced), broadband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed Packet Access (HSPA, High-Speed Packet Access), etc.
- LTE long-term evolution
- LTE-A enhanced long-term evolution
- LTE-A LTE-Advanced
- WCDMA Wideband Code Division Multiple Access
- High-Speed Packet Access High-Speed Packet Access
- HSPA High-Speed Packet Access
- the communication between devices in the communication system can be carried out according to any stage of communication protocols, such as but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G , New Radio (NR, New Radio), etc., and/or other communication protocols that are currently known or will be developed in the future.
- Network device refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services for the terminal device.
- Network equipment may include but not limited to the following equipment: base station (BS, Base Station), access point (AP, Access Point), transmission and reception point (TRP, Transmission Reception Point), broadcast transmitter, mobile management entity (MME, Mobile Management Entity), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller) and so on.
- the base station may include but not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), and 5G base station (gNB), etc., and may also include Remote Radio Head (RRH, Remote Radio Head) , Remote Radio Unit (RRU, Remote Radio Unit), relay (relay) or low-power nodes (such as femeto, pico, etc.).
- Node B Node B
- eNodeB or eNB evolved Node B
- gNB 5G base station
- RRH Remote Radio Head
- RRU Remote Radio Unit
- relay relay
- low-power nodes such as femeto, pico, etc.
- base station may include some or all of their functions, each base station may provide communication coverage for a particular geographic area.
- the term "cell” can refer to a base station and/or its coverage area depending on the context in which the term is used.
- the term "User Equipment” (UE, User Equipment) or “terminal equipment” (TE, Terminal Equipment or Terminal Device), for example, refers to a device that accesses a communication network through a network device and receives network services.
- a terminal device may be fixed or mobile, and may also be called a mobile station (MS, Mobile Station), a terminal, a subscriber station (SS, Subscriber Station), an access terminal (AT, Access Terminal), a station, etc.
- the terminal equipment may include but not limited to the following equipment: Cellular Phone (Cellular Phone), Personal Digital Assistant (PDA, Personal Digital Assistant), wireless modem, wireless communication equipment, handheld equipment, machine-type communication equipment, laptop computer, Cordless phones, wearables, smartphones, smart watches, digital cameras, and more.
- Cellular Phone Cellular Phone
- PDA Personal Digital Assistant
- wireless modem wireless communication equipment
- handheld equipment machine-type communication equipment
- laptop computer Cordless phones
- wearables smartphones
- smart watches digital cameras, and more.
- the terminal device can also be a machine or device for monitoring or measurement, such as but not limited to: a machine type communication (MTC, Machine Type Communication) terminal, Vehicle communication terminals, industrial wireless equipment, surveillance cameras, device-to-device (D2D, Device to Device) terminals, machine-to-machine (M2M, Machine to Machine) terminals, etc.
- MTC Machine Type Communication
- Vehicle communication terminals such as but not limited to: a machine type communication (MTC, Machine Type Communication) terminal, Vehicle communication terminals, industrial wireless equipment, surveillance cameras, device-to-device (D2D, Device to Device) terminals, machine-to-machine (M2M, Machine to Machine) terminals, etc.
- D2D Device to Device
- M2M Machine to Machine
- network side refers to a side of the network, which may be a certain base station or a certain core network device, and may also include one or more of the above network devices.
- user side or “terminal side” or “terminal device side” refers to a side of a user or a terminal, which may be a certain UE, or may include one or more terminal devices as above.
- device may refer to network devices or terminal devices.
- uplink control signal and “uplink control information (UCI, Uplink Control Information)” or “physical uplink control channel (PUCCH, Physical Uplink Control Channel)” can be used interchangeably without causing confusion.
- uplink data signal and “uplink data information” or “Physical Uplink Shared Channel (PUSCH, Physical Uplink Shared Channel)” can be interchanged, and “received (of)” and “detected (of)” indicate success Receiving can be interchanged; “receiving” and “detecting” indicate the action being performed, without emphasizing whether it is successfully received, and can be interchanged, but in some cases they can also indicate the result of receiving.
- downlink control signal and “downlink control information (DCI, Downlink Control Information)” or “physical downlink control channel (PDCCH, Physical Downlink Control Channel)” are interchangeable, and the terms “downlink data signal” and “downlink data information” Or “Physical Downlink Shared Channel (PDSCH, Physical Downlink Shared Channel)” can be interchanged.
- DCI Downlink Control Information
- PDCCH Physical Downlink Control Channel
- sending or receiving PUSCH can be understood as sending or receiving uplink data carried by PUSCH
- sending or receiving PUCCH can be understood as sending or receiving uplink information (e.g.UCI) carried by PUCCH
- sending or receiving PRACH can be understood as sending or receiving The preamble carried by PRACH
- sending or receiving PDSCH can be understood as sending or receiving downlink data carried by PDSCH
- sending or receiving PDCCH can be understood as sending or receiving downlink information (e.g.DCI) carried by PDCCH.
- DCI downlink information
- the high-level signaling may be, for example, radio resource control (RRC) signaling;
- the RRC signaling includes, for example, an RRC message (RRC message), such as including a master information block (MIB), system information (system information), A dedicated RRC message; or an RRC information element (RRC information element, RRC IE); or an RRC message or an information field included in an RRC information element (or an information field included in an information field).
- RRC radio resource control
- the high-level signaling may also be medium access control layer (Medium Access Control, MAC) signaling; or called MAC control element (MAC control element, MAC CE). But the present application is not limited thereto.
- FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application, schematically illustrating a case where a terminal device and a network device are taken as examples.
- a communication system 100 may include a network device 101 and terminal devices 102 and 103.
- FIG. 1 only uses two terminal devices and one network device as an example for illustration, but this embodiment of the present application is not limited thereto.
- eMBB enhanced mobile broadband
- mMTC massive Machine Type Communication
- URLLC Ultra-Reliable and Low -Latency Communication
- URLLC Ultra-Reliable and Low -Latency Communication
- Fig. 1 shows that both terminal devices 102 and 103 are within the coverage of the network device 101, but the present application is not limited thereto. Neither of the two terminal devices 102 and 103 may be within the coverage of the network device 101 , or one terminal device 102 may be within the coverage of the network device 101 while the other terminal device 103 is outside the coverage of the network device 101 .
- the transport blocks carried by different PDSCHs are the same or different. Therefore, “multiple PDSCHs" or “at least two PDSCHs” hereinafter may refer to different PDSCHs carrying the same or different transport blocks. More specifically, transport blocks carried by different PDSCHs may correspond to the same or different HARQ processes, where different HARQ processes have different HARQ process identifiers.
- the PDSCH Time Domain Resource Allocation (TDRA) table (or simply called TDRA table) includes at least one row, and below, for convenience of description, a row is called a PDSCH TDRA configuration (or called TDRA configuration for short), i.e. PDSCH
- the TDRA table includes at least one PDSCH TDRA configuration.
- a PDSCH TDRA configuration includes at least one PDSCH time domain resource configuration (or simply referred to as time domain resource configuration), and the PDSCH time domain resource configuration includes at least the symbol position (start symbol + length) configuration in the time slot; in addition, a PDSCH TDRA
- the configuration can also include at least one time slot offset K0 configuration, the K0 represents the time slot offset of PDSCH and PDCCH, and the K0 configuration is included in the PDSCH time domain resource configuration or not included in the PDSCH time domain resource configuration; the PDSCH TDRA
- the configuration may also include other information (for example, mapping type, mapping type), and the other information is included in the PDSCH time domain resource configuration or not included in the PDSCH time domain resource configuration, which is not limited in this embodiment of the present application.
- the symbol position configuration in the time slot includes, for example, a start and length indicator SLIV, which corresponds to a valid combination (valid combination) of a start symbol (S) and a length (L), or, for example, corresponds to a start symbol Starting symbol configuration and length configuration, the starting symbol configuration and length configuration are valid combinations.
- Hybrid Automatic Repeat reQuest is a technology that combines Forward Error Correction (FEC) and Automatic Repeat reQuest (ARQ).
- FEC enables the receiving end to correct some errors by adding redundant information, thereby reducing the number of retransmissions.
- the receiving end will request the sending end to resend data through the ARQ mechanism.
- the receiving end uses an error detection code, usually a cyclic redundancy check (Cyclic Redundancy Check, CRC), to detect whether the received data packet has an error. If there is no error, the receiving end will send a positive acknowledgment (ACK) to the sending end, and the sending end will send the next data packet after receiving the ACK. If an error occurs, the receiving end will discard the data packet and send a negative acknowledgment (NACK) to the sending end. After receiving the NACK, the sending end will resend the same data.
- CRC Cyclic Redundancy Check
- HARQ-ACK feedback is required for one or more PDSCHs (all or part) scheduled by DCI.
- a terminal device can generate a HARQ-ACK codebook, which includes a semi-static codebook (Type- 1HARQ-ACK codebook) and dynamic codebook (Type-2HARQ-ACK codebook).
- the terminal adopts Type-1HARQ-ACK codebook or Type-2HARQ-ACK codebook according to RRC signaling configuration.
- An embodiment of the present application provides an information feedback method, which is described from a terminal device side.
- Fig. 2 is a schematic diagram of the information feedback method of the embodiment of the present application. As shown in Fig. 2, the method includes:
- the terminal device receives at least one downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH), and the DCI schedules one or more PDSCHs, wherein the one or more PDSCHs include at least one corresponding
- DCI downlink control information
- the HARQ process is a feedback-enabled or feedback-disabled PDSCH;
- the terminal device sends HARQ feedback information for one or more PDSCHSs.
- the terminal device receives downlink control information (DCI) for scheduling one or more PDSCHs.
- the DCI may (can) schedule multiple PDSCHs, but may actually schedule one PDSCH or multiple PDSCHs.
- the multiple PDSCHs may be multiple PDSCHs scheduled in the time domain or multiple PDSCHs scheduled in the frequency domain, or multiple PDSCHs in the time domain and the frequency domain.
- the PDSCH time domain resource allocation table applied by the DCI supports scheduling multiple PDSCHs through one DCI, which is not limited in this embodiment of the present application.
- the DCI and PDSCH are sent on the same carrier (cell) or different carriers (cells), that is, the PDSCH can be scheduled by DCI on the same carrier (cell), or by DCI scheduling on different carriers (cells).
- the DCI and PDSCH are in different carriers (cells) they are scheduled according to the configuration (e.g. number of HARQ processes, HARQ feedback enable/disable configuration, PDSCH time domain resource allocation table configuration, etc.) corresponding to the scheduled carrier (cell) The PDSCH.
- Figure 36A is a schematic diagram of DCI and scheduled PDSCH in the same BWP of the same carrier (carrier)/cell, as shown in Figure 14, (a) corresponds to scheduling one PDSCH (there is no limit to whether DCI can only schedule one or multiple, b) Corresponding to scheduling multiple PDSCHs in the time domain, PDSCHs are indexed in the order of the time domain, c) corresponding to scheduling multiple PDSCHs in the frequency domain, PDSCHs are indexed in the order of the frequency domain, d) corresponding to scheduling multiple time domains and frequency domains, PDSCHs are indexed according to the first frequency The time domain sequence index after the domain, e) corresponds to multiple scheduling in the time domain and the frequency domain, and the PDSCH is indexed in the order of the first time domain and then the frequency domain.
- Figure 36B is a schematic diagram of different BWPs of DCI and scheduled PDSCH in the same carrier/cell, as shown in Figure 15, (a) corresponds to scheduling one PDSCH (does not limit whether DCI can only schedule one or multiple, b) corresponds to the time domain Multiple PDSCHs are scheduled on the Internet, and the PDSCHs are indexed in the order of the time domain. c) Multiple PDSCHs are scheduled on the corresponding frequency domain, and the PDSCHs are indexed in the order of the frequency domain. d) Multiples are scheduled on the corresponding time domain and the frequency domain. The domain sequence index, e) corresponds to multiple scheduling in the time domain and the frequency domain, and the PDSCH is indexed in the order of the time domain first and then the frequency domain.
- Figure 36C is a schematic diagram of DCI and scheduled PDSCH in different carriers/cells (cross-carrier scheduling).
- PDSCHs are indexed in the order of the time domain
- c) corresponding to scheduling multiple PDSCHs in the frequency domain
- PDSCHs are indexed in the order of the frequency domain
- d) corresponding to scheduling multiple time domains and frequency domains
- PDSCHs are indexed according to the first frequency
- the time domain sequence index after the domain e) corresponds to multiple scheduling in the time domain and the frequency domain
- the PDSCH is indexed in the order of the first time domain and then the frequency domain.
- Figure 36D is a schematic diagram of DCI scheduling multiple PDSCHs, as shown in Figure 17, a) corresponds to two PDSCHs with different scheduling time domains, the two PDSCHs are on different BWPs of different carriers/cells, and are on the same BWP of the same carrier/cell Only one PDSCH is scheduled on the network, and the PDSCH is indexed according to the order of the time domain. b) Two PDSCHs with different frequency domains are correspondingly scheduled.
- the two PDSCHs are on different BWPs of different carriers/cells, and only one PDSCH, PDSCH is indexed according to the frequency domain sequence, c) corresponding to scheduling 4 PDSCHs, two PDSCHs are scheduled on different BWPs of different carriers/cells, two PDSCHs are scheduled on the same BWP of the same carrier/cell, and PDSCHs are scheduled according to the first frequency Time domain sequence index after domain, d) Corresponding to scheduling 4 PDSCHs, two PDSCHs are scheduled on different BWPs of different carriers/cells, two PDSCHs are scheduled on the same BWP of the same carrier/cell, PDSCHs are scheduled first in the time domain and then Frequency-domain order index. In the following, it will be described by taking DCI that can schedule multiple PDSCHs in the time domain as an example.
- multiple PDSCHs can be scheduled in the time domain, and the PDSCH time domain resource allocation table applied by the DCI supports scheduling multiple PDSCHs through one DCI.
- the PDSCH time domain resource allocation configuration will be further described below.
- the PDSCH TDRA table for supporting scheduling of multiple PDSCHs through one DCI includes at least one PDSCH TDRA configuration for supporting scheduling of multiple PDSCHs through one DCI.
- the table may include or not include the PDSCH TDRA configuration for supporting scheduling of a PDSCH through a DCI.
- the PDSCH TDRA table includes at least one (M) PDSCH TDRA configuration (at least one row), at least one (P) of the M PDSCH TDRA configurations is used to support the PDSCH TDRA configuration for scheduling multiple PDSCHs through one DCI, It includes M-P PDSCH TDRA configurations used to support scheduling a PDSCH through a DCI.
- M is greater than or equal to P
- both M and P are integers greater than or equal to 1.
- a PDSCH TDRA configuration for supporting scheduling of multiple PDSCHs via one DCI includes at least two PDSCH time domain resource configurations (eg at least two SLIVs, each SLIV corresponding to a PDSCH).
- the PDSCH TDRA configuration for supporting scheduling of one PDSCH via one DCI includes only one PDSCH time domain resource configuration.
- the method may further include: (not shown) the terminal device may determine a PDSCH time domain resource allocation table for each DCI application according to the first list, thereby determining the first allocation table, and the first list
- One column corresponds to the first indication information (e.g.pdsch-TimeDomainAllocationListForMultiPDSCH) configured to support the PDSCH TDRA table for scheduling multiple PDSCHs through one DCI.
- the first indication information is included in PDSCH-Config, for example. That is, the terminal device determines the PDSCH time-domain resource allocation table for each DCI application from the PDSCH time-domain resource allocation (TDRA) table that is predefined or configured through high-layer signaling according to the first list.
- TDRA time-domain resource allocation
- the first list is used to determine the PDSCH time-domain resource allocation table for DCI applications whose format is DCI format 1_1 or DCI format 1_2, and is not used to determine the PDSCH time-domain resource allocation table for DCI applications whose format is DCI format 1_0, such as the format
- the DCI of DCI format 1_0 can use the second list to determine the PDSCH TDRA table of the DCI application.
- the content of the second list includes, for example, the existing list for DCI format 1_0 and DCI format 1_1 (Applicable PDSCH time domain resource allocation for DCI formats 1_0 and 1_1) are the same. That is, the PDSCH TDRA table of the DCI application whose format is DCI format 1_0 and DCI format 1_1 is determined based on different lists.
- the first list further includes a column corresponding to a first indication of a PDSCH TDRA table configured to support scheduling of multiple PDSCHs through one DCI information (e.g.pdsch-TimeDomainAllocationListForMultiPDSCH), and the second list does not include the column corresponding to the first indication information of the PDSCH TDRA table configured to support scheduling multiple PDSCHs through one DCI.
- the second list determines the PDSCH TDRA table of the DCI application, the first indication information of the PDSCH TDRA table used to support the scheduling of multiple PDSCHs through one DCI is not considered.
- the PDSCH time-domain resource allocation table cannot be a PDSCH time-domain resource allocation table used to support scheduling multiple PDSCHs through a DCI, and the PDSCH time-domain resource allocation table for the DCI application determined based on the first list may be used to support A PDSCH time-domain resource allocation table for scheduling multiple PDSCHs through one DCI.
- the format of the DCI is DCI format 1_1 or DCI format 1_2, and the PDSCH TDRA table applied by the DCI has nothing to do with the wireless network temporary identifier RNTI that scrambles the cyclic redundancy check CRC of the DCI.
- the RNTI is the cell radio network temporary identifier (Cell-RadioNetworkTemporaryIdentifier, C-RNTI), the coding and modulation scheme C-RNTI (MCS-C-RNTI), and the configuration scheduling RNTI (CS-RNTI)
- C-RNTI Cell-RadioNetworkTemporaryIdentifier
- MCS-C-RNTI coding and modulation scheme
- CS-RNTI configuration scheduling RNTI
- the TDRA table is the same.
- the following table 1 is an example table of the first list.
- the columns PDSCH-ConfigCommon includes pdsch-TimeDomainAllocationList in this table 1, and PDSCH-Config includes pdsch-TimeDomainAllocationList respectively correspond to the configuration cell-specific and UE-specific for only
- the second indication information of the PDSCH TDRA table that supports scheduling a PDSCH through a DCI that is, pdsch-TimeDomainAllocationList in PDSCH-ConfigCommon and pdsch-TimeDomainAllocationList in PDSCH-Config
- the specific meaning can refer to the existing technology, and will not be repeated here .
- the DCI adopts C-RNTI
- the PDSCH TDRA table used to support scheduling multiple PDSCHs through one DCI is applied when MCS-C-RNTI or CS-RNTI is scrambling.
- the format of the DCI is DCI format 1_1 or DCI format 1_2, and the PDSCH time domain resource allocation table applied when the DCI is scrambled with different RNTIs is different.
- the PDSCH time-domain resource allocation table applied when CS-RNTI is used for scrambling is different from the PDSCH time-domain resource allocation table applied when non-CS-RNTI (C-RNTI or MCS-C-RNTI) is used for scrambling.
- the PDSCH time domain resource allocation table applied by the DCI is used to support the PDSCH scheduling of multiple PDSCHs through one DCI Domain resource allocation table; when the DCI is scrambled by CS-RNTI, the PDSCH time domain resource allocation table applied by the DCI is not the PDSCH time domain resource allocation table used to support scheduling multiple PDSCHs through one DCI, in other words, the When DCI is scrambled by CS-RNTI, the PDSCH time-domain resource allocation table applied by the DCI is only the PDSCH TDRA table that supports one PDSCH scheduling through one DCI.
- the PDSCH time domain resource allocation table applied to the DCI is not the PDSCH time domain resource allocation table configured by the first indication information; when the DCI is scrambled by a non-CS-RNTI (C -RNTI or MCS-C-RNTI) when scrambling, the PDSCH time-domain resource allocation table applied by the DCI is the PDSCH time-domain resource allocation table configured by the first indication information, since the DCI used for SPS activation must be activated by the CS- RNTI is scrambled, so even if the first indication information is configured with a PDSCH TDRA table that supports scheduling multiple PDSCHs through one DCI, it cannot be used for SPS activation.
- C -RNTI C -RNTI or MCS-C-RNTI
- Tables 2-1 and 2-2 are examples of the first list.
- the difference from Table 1 is that the PDSCH time domain resource allocation table applied when CS-RNTI scrambling is used is different from that using non-CS-RNTI (C- RNTI or MCS-C-RNTI)
- the PDSCH time domain resource allocation table applied when scrambling is different.
- the first indication information configuration needs to support the PDSCH TDRA table and The PDSCH TDRA table for scheduling multiple PDSCHs through one DCI, even when the first indication information is configured to support the PDSCH TDRA table for scheduling multiple PDSCHs through one DCI, the DCI whose RNTI is CS-RNTI can be applied to support only The PDSCH TDRA table that schedules a PDSCH through a DCI.
- the first indication information configuration does not need to support the PDSCH TDRA table that only schedules a PDSCH through a DCI and the PDSCH TDRA table that schedules multiple PDSCHs through a DCI.
- the RNTI when the first indication information is configured to support the PDSCH TDRA table for scheduling multiple PDSCHs through one DCI and the PDSCH TDRA table for only supporting one PDSCH scheduling through one DCI is not configured through the first indication information, the RNTI is CS - The DCI format 1_1 of RNTI can apply the predefined PDSCH TDRA table.
- the format of the DCI is DCI format 1_1 or DCI format 1_2, the DCI is used for SPS activation and/or SPS retransmission (the CRC of the DCI is scrambled by the CS-RNTI) PDSCH applied
- the time domain resource allocation table is different from the PDSCH time domain resource allocation table used for non-SPS activation and/or SPS retransmission (whether the CRC of the DCI is scrambled by CS-RNTI).
- the PDSCH time domain resource allocation table applied by the DCI is not used to support the scheduling of multiple PDSCHs through one DCI, in other words, the DCI is used for SPS activation and / or SPS retransmission, the PDSCH time domain resource allocation table applied by the DCI is only a PDSCH TDRA table that supports scheduling a PDSCH through a DCI; when the DCI is used for non-SPS activation and/or SPS retransmission, the DCI application The PDSCH time domain resource allocation table is used to support scheduling multiple PDSCHs through one DCI.
- the PDSCH time domain resource allocation table applied by the DCI is not the PDSCH time domain resource allocation table configured by the first indication information; when the DCI is used for non-SPS During activation and/or SPS retransmission, the PDSCH time domain resource allocation table applied by the DCI is the PDSCH time domain resource allocation table configured by the first RRC signaling.
- the first indication information is configured to support the PDSCH TDRA table for scheduling multiple PDSCHs through one DCI, that is, the value of pdsch-TimeDomainAllocationListForMultiPDSCH is YES, and the first indication information Configure the PDSCH TDRA table that does not support scheduling multiple PDSCHs through one DCI, that is, the value of pdsch-TimeDomainAllocationListForMultiPDSCH is NO.
- the first list is used to determine the PDSCH time domain resource allocation table for the DCI application whose format is DCI format 1_1, and may also be used to determine the PDSCH time domain resource allocation table for the DCI application whose format is DCI format 1_0,
- the table in the preceding example can be regarded as the third table combined with the existing second table as the first table, and is simultaneously used to determine the PDSCH time domain resource allocation table for DCI applications with formats of DCI format 1_1 and DCI format 1_0.
- the DCI includes a second information domain
- the second information domain may be a time domain resource assignment domain Time domain resource assignment
- the first information domain corresponds to the PDSCH TDRA configuration in the PDSCH TDRA table indicating that the DCI applies
- the index (row index, e.g. the value of the row index is greater than or equal to 1) to indicate the PDSCH time domain resource, in other words, the DCI schedules the PDSCH by indicating the PDSCH TDRA configuration in the PDSCH TDRA table to which it applies.
- the value m of the second information field of the DCI corresponds to the PDSCH TDRA whose index is m+1 (that is, row m+1) in the PDSCH TDRA table indicating that the DCI is applied configuration.
- the PDSCH TDRA table is the first indication information configuration
- the index value corresponding to the m+1th PDSCH TDRA configuration of the first indication information configuration is m+1, that is to say, the index value of the second information field
- the value is m, it corresponds to the m+1th PDSCH TDRA configuration of the first RRC signaling configuration.
- the PDSCH TDRA configuration indicated in the DCI is a PDSCH TDRA configuration (including multiple PDSCH time domain resources) for supporting scheduling of multiple PDSCHs through one DCI configuration)
- the UE may determine the scheduled multiple PDSCHs time domain resources according to the PDSCH time domain resource configurations corresponding to multiple PDSCHs included in the PDSCH TDRA configuration.
- the DCI may further include a third information field, where the third information field is used to indicate the HARQ process ID, where different scheduled PDSCHs correspond to the same or different HARQ processes, and the terminal device may determine the HARQ process ID according to the DCI.
- the HARQ process indicated by the DCI and the HARQ process of the scheduled PDSCH are determined.
- the third information field is, for example, 'HARQ process number'.
- the DCI explicitly and/or implicitly indicates the HARQ process.
- the DCI uses the first information domain (explicit), and/or multiplexes other information domains (explicit), and/or uses the time domain and/or frequency domain resources used to transmit the DCI (implicit Formula) indicates the HARQ process.
- the terminal device may also receive indication information related to HARQ feedback enabling and/or disabling (HARQ-ACK feedback enabling and/or disabling), and the indication information may be through high-layer signaling and/or through physical Layer signaling bearer (indication or configuration), the high-layer signaling includes radio resource control (RRC) signaling and/or medium access control layer control element (MAC CE), etc., the physical layer signaling can be different from operation 201
- the DCI in operation 202 may also be the DCI in operation 202 .
- the indication information includes a bitmap and/or first HARQ process indication information and/or second HARQ process indication information and/or enabling/disabling indication information, that is, each information in the above indication information may be controlled by the above one signaling
- the embodiment of the present application is not limited thereto.
- the indication information is for one cell or multiple cells.
- the HARQ feedback enabling and/or disabling configurations of different cells are the same or different.
- the indication information respectively indicates enabling and/or disabling HARQ feedback for different cells.
- the indication information may include a bitmap, each bit of the bitmap corresponds to one (or a group) of configured or preconfigured HARQ processes, and the value of each bit indicates the corresponding HARQ process (group) ) is enabled or disabled, that is to say, the bitmap is in one-to-one correspondence with the HARQ process (group), for example, when the value of a bit of the bitmap is 0, the HARQ process (group) is feedback disabled (hereinafter referred to as the first For a HARQ process (group) of a HARQ process), when the value of one bit of the bitmap is 1, the HARQ process (group) is a feedback-enabled HARQ process (group), and vice versa.
- the HARQ process (group) corresponding to the bitmap may be all HARQ processes (groups) that are predefined or preconfigured or configured through signaling, or may be predefined or preconfigured or configured through signaling Part of the HARQ process (group) in all HARQ processes (groups), the part of the HARQ process (group) may be predefined, or indicated by the first HARQ process indication information further included in the indication information, about the first HARQ process Instructions will be described later.
- the method may further include: (not shown) the terminal device receives HARQ process (group) configuration information for configuring all the HARQ processes (groups).
- the indication information may include second HARQ process indication information, where the HARQ process (group) indicated by the second HARQ process indication information is HARQ feedback enabled or HARQ feedback disabled.
- the correspondence between the second HARQ process indication information and the indicated HARQ process (group) is predefined, for example, the second HARQ process indication information may be an index and/or a starting position length indication (index/SLIV), the The HARQ process (group) corresponding to the index/SLIV value is HARQ feedback enabled, and the other HARQ processes (groups) that do not correspond to the index/SLIV value are HARQ feedback disabled; or, the index/SLIV value corresponds to The HARQ process (group) is disabled by HARQ feedback, and other HARQ processes (groups) that do not correspond to the value of index/SLIV are enabled by HARQ feedback.
- the second HARQ process indication information may also be indicated in combination with enabling/disabling indication information, where the enabling/disabling indication information is used to indicate whether the HARQ process indicated by the second HARQ process indication information is HARQ feedback enabled or HARQ feedback Disabled.
- the enabling/disabling indication information may be included in the indication information, or included in the DCI in operation 201, which is not limited in this embodiment of the present application.
- the enable/disable indication information indicates that it is enabled
- the HARQ process indicated by the second HARQ process indication information is HARQ feedback enabled
- the enable/disable indication information indicates that it is disabled
- the second HARQ process The HARQ process indicated by the indication information is disabled by HARQ feedback.
- the enable/disable indication information may be 1-bit indication information. When the value of this bit is 0, it indicates that HARQ feedback is disabled, and the value of this bit is 1. When , it indicates that the HARQ feedback is enabled, and vice versa, and no examples are given here.
- the HARQ processes (groups) with which the second HARQ process indication information has a corresponding relationship may be predefined or preconfigured or all HARQ processes (groups) configured through signaling, or may be predefined or preconfigured Part of the HARQ processes (groups) in all HARQ processes (groups) configured through signaling, the part of the HARQ processes (groups) may be predefined, or indicated by the first HARQ process indication information further included in the indication information , the indication information of the first HARQ process will be described later.
- the remaining HARQ processes (groups) that have no corresponding relationship with the second HARQ process indication information may be predefined or pre-configured as HARQ feedback enabled or HARQ feedback disabled by default.
- the method may further include: (not shown) the terminal device receives HARQ process (group) configuration information for configuring all the HARQ processes (groups).
- the indication information may include first HARQ process indication information, and the HARQ process (group) indicated by the first HARQ process indication information is HARQ-ACK feedback enabled or HARQ-ACK feedback disabled.
- the first HARQ process indication information may be a HARQ process identification (ID), and the HARQ process identification is the maximum value X of the identification of the HARQ process whose HARQ feedback is enabled or HARQ feedback is disabled, that is to say, the HARQ process identification is 0 All HARQ processes in ⁇ X are HARQ processes with HARQ feedback enabled or HARQ feedback disabled; or the HARQ process identifier is the minimum value Y of the identifiers of HARQ processes with HARQ feedback enabled or HARQ feedback disabled, that is to say, the HARQ process All HARQ processes identified as Y ⁇ Z-1 are HARQ processes with HARQ feedback enabled or HARQ feedback disabled.
- ID HARQ process identification
- Z can be pre-configured or predefined or the number of HARQ processes configured through signaling.
- This application implements The example is not limited to this; or the first HARQ process indication information may also be indicated in combination with enable/disable indication information, and the enable/disable indication information is used to indicate the HARQ process indicated by the first HARQ process indication information ( For example, whether the ID is 0-X or Y-Z-1) is HARQ feedback enabled or HARQ feedback disabled.
- the enabling/disabling indication information may be included in the indication information, or included in the DCI in operation 201, which is not limited in this embodiment of the present application.
- the enable/disable indication information indicates that it is enabled
- the HARQ process corresponding to the HARQ process identifier for example, ID is 0 ⁇ X or Y-Z-1 indicated by the first HARQ process indication information
- the enable/disable indication information indicates that it is disabled
- the HARQ process corresponding to the HARQ process identifier for example, ID is 0 ⁇ X or Y-Z-1 indicated by the first HARQ process indication information is HARQ feedback disabled
- the enable/disable The disabled indication information may be 1-bit indication information. When the value of this bit is 0, it indicates that HARQ feedback is disabled. When the value of this bit is 1, it indicates that HARQ feedback is enabled, and vice versa.
- the first HARQ process indication information may be a HARQ process identification (ID), and the first HARQ process indication information is jointly indicated with the aforementioned bitmap or the second HARQ process indication information, for example, the first HARQ process indication information
- ID HARQ process identification
- the aforementioned part of the HARQ process may be indicated, for example, indicating the maximum value X or the minimum value of the identification of the part of the HARQ process.
- the part of the HARQ process is indicated according to each bit of the bitmap Whether each HARQ process of the HARQ process is HARQ feedback enabled or HARQ feedback disabled, or, after determining the HARQ process corresponding to the second HARQ process indication information according to the first HARQ process indication information, determine the corresponding HARQ process
- the HARQ process is HARQ feedback disabled or HARQ feedback enabled; or, the first HARQ process indication information is jointly indicated with the aforementioned second HARQ process indication information and enable/disable indication information, and according to the first HARQ process indication
- the enable/disable indication information may be 1-bit indication information. When the value of this bit is 0, it indicates that
- the first HARQ process indication information may be a group of HARQ process identifications (IDs), and the HARQ processes corresponding to the group of HARQ process identifications indicated by the first HARQ process indication information are all HARQ feedback enabled, or all HARQ Feedback is disabled, and other HARQ processes that do not correspond to the group of HARQ process identifiers are HARQ feedback enabled or HARQ feedback disabled by default.
- IDs HARQ process identifications
- the first HARQ process indication information may be a set of HARQ process identifiers (IDs), and the first HARQ process indication information may be indicated in combination with enabling/disabling indication information, and the enabling/disabling indication information is used to indicate that the first HARQ process indication information
- a group of HARQ process identifiers indicated by the HARQ process indication information correspond to whether each HARQ process is enabled with HARQ feedback or disabled with HARQ feedback.
- the enabling/disabling indication information may be included in the indication information, or included in the DCI in operation 201, which is not limited in this embodiment of the present application.
- the enable/disable indication information indicates that it is enabled
- the HARQ processes corresponding to a group of HARQ process identifiers indicated by the first HARQ process indication information are all HARQ feedback enabled
- the enable/disable indication information indicates that When disabled
- the HARQ processes corresponding to a group of HARQ process identifiers indicated by the second HARQ process indication information are all HARQ feedback disabled
- the enable/disable indication information can be 1-bit indication information, where the value of this bit is 0 When the value of this bit is 1, it indicates that HARQ feedback is disabled, and when the value of this bit is 1, it indicates that HARQ feedback is enabled, and vice versa, and no examples are given here.
- the first HARQ process indication information may also be jointly indicated with the aforementioned second HARQ process indication information and enable/disable indication information, for example, the first HARQ process indication information may indicate that the aforementioned second HARQ process indication information has a corresponding The related HARQ process, after determining the HARQ process corresponding to the second HARQ process indication information (the HARQ process corresponding to a group of HARQ process identifiers) according to the first HARQ process indication information, determines according to the enabling/disabling indication information
- the corresponding HARQ process is HARQ feedback disabled or HARQ feedback enabled.
- the enable/disable indication information may be 1-bit indication information. When the value of this bit is 0, it indicates that HARQ feedback is disabled; when the value of this bit is 1, it indicates that HARQ feedback is enabled, and vice versa Yes, no more examples here.
- the HARQ process corresponding to a HARQ process ID means that the HARQ process ID is the HARQ process ID.
- the first HARQ process indication information may be a second offset value offset
- the second offset value offset may be the offset value of the HARQ process identifier.
- the HARQ process identifier corresponding to the second offset value is The maximum value X of the identification of the HARQ process with HARQ feedback enabled or disabled, that is to say, all the HARQ processes in the HARQ process identified as 0 to X are HARQ processes with HARQ feedback enabled or disabled; or, the The HARQ process identifier corresponding to the second offset value is the minimum value Y of the identifier of the HARQ process whose HARQ feedback is enabled or HARQ feedback is disabled, that is to say, the HARQ process identifier corresponding to the second offset value is Y ⁇ Z-1 All the HARQ processes in are HARQ processes with HARQ feedback enabled or HARQ feedback disabled, and this Z can be pre-configured or predefined or the number of HARQ processes configured through signaling, and this embodiment of the present application
- the enabling/disabling indication information may be included in the indication information, or included in the DCI in operation 201, which is not limited in this embodiment of the present application.
- the first HARQ process indication information indicates that the HARQ process corresponding to the HARQ process identifier (for example, ID 0 ⁇ X or Y-Z-1) corresponding to the second offset value is
- the HARQ process identifier for example, ID 0 ⁇ X or Y-Z-1 corresponding to the second offset value indicated by the first HARQ process indication information corresponds to
- the HARQ process is disabled by HARQ feedback, and the enable/disable indication information may be 1-bit indication information. When the value of this bit is 0, it indicates that HARQ feedback is disabled. When the value of this bit is 1, it indicates It is enabled for HARQ feedback, and vice versa, and examples are not given here.
- the first HARQ process indication information may be a second offset value offset
- the first HARQ process indication information is jointly indicated with the aforementioned bitmap or the second HARQ process indication information, for example, the first HARQ process indication information
- the aforementioned part of the HARQ process may be indicated by the second offset value, for example, indicating the maximum or minimum value of the identity of the part of the HARQ process (corresponding to the maximum second offset value and the minimum second offset value respectively), according to the second offset value
- the HARQ process indication information indicate whether each HARQ process of the part of the HARQ process is HARQ feedback enabled or HARQ feedback disabled according to each bit of the bitmap, or, according to the first HARQ process indication
- the information determines the HARQ process corresponding to the second HARQ process indication information it is determined that the corresponding HARQ process is HARQ feedback disabled or HARQ feedback enabled; or, the first HARQ process indication information and the aforementioned first
- the first HARQ process indication information may be a set of second offset values, and the HARQ process identification corresponding to the set of second offset values indicated by the first HARQ process indication information is all HARQ feedback enabled or all HARQ feedback is disabled, and other HARQ processes not corresponding to the set of second offset values are HARQ feedback enabled or HARQ feedback disabled by default.
- the first HARQ process indication information may be a group of second offset values, and the first HARQ process indication information may be combined with enable/disable indication information to indicate that the first HARQ process indication information is used to indicate the first Whether each HARQ process corresponding to a set of second offset values indicated by the HARQ process indication information is enabled with HARQ feedback or disabled with HARQ feedback.
- the enabling/disabling indication information may be included in the indication information, or included in the DCI in operation 201, which is not limited in this embodiment of the present application.
- the HARQ processes corresponding to a set of second offset values indicated by the first HARQ process indication information are all HARQ feedback enabled, and the enabling/disabling indication information
- the HARQ processes corresponding to a group of second offset values indicated by the second HARQ process indication information are all HARQ feedback disabled
- the enable/disable indication information may be 1-bit indication information, in which bit When the value of the bit is 0, it indicates that HARQ feedback is disabled, and when the value of this bit is 1, it indicates that HARQ feedback is enabled, and vice versa, and no examples are given here.
- the first HARQ process indication information may also be jointly indicated with the aforementioned second HARQ process indication information and enable/disable indication information, for example, the first HARQ process indication information may indicate that the aforementioned second HARQ process indication information has a corresponding The related HARQ process, after determining the HARQ process corresponding to the second HARQ process indication information (the HARQ process corresponding to a group of second offset values) according to the first HARQ process indication information, according to the enabling/disabling indication The information determines whether the corresponding HARQ process is HARQ feedback disabled or HARQ feedback enabled.
- the enable/disable indication information may be 1-bit indication information. When the value of this bit is 0, it indicates that HARQ feedback is disabled; when the value of this bit is 1, it indicates that HARQ feedback is enabled, and vice versa Yes, no more examples here.
- each information in the indication information is carried by the upper layer signaling, or when the indication information includes a bit map and/or the first HARQ process indication information and/or the second HARQ process indication information, the indication information is carried by The above-mentioned high-level signaling is carried, and the above-mentioned enabling/disabling indication information is carried by the DCI in operation 201 (for example, the fourth information field carries the enabling/disabling indication information); or, when the enabling/disabling indication information is included in the indication information , the indication information may be carried by the DCI bearer in operation 201, which is not limited in this embodiment of the present application.
- the terminal device may determine according to the indication information and the DCI that the HARQ process corresponding to one or more PDSCHs scheduled by the DCI is HARQ feedback disabled or HARQ feedback enabled, for example, according to the indication information and/or Or determine the HARQ process indicated by the DCI by the enabling/disabling indication information carried by the DCI, and determine whether the indicated HARQ process is feedback enabled or disabled, and then determine the HARQ process corresponding to the PDSCH scheduled by the DCI, and then determine the corresponding HARQ process of the scheduled PDSCH Whether the HARQ process is feedback-enabled or feedback-disabled, wherein the one or more PDSCHs include at least one PDSCH whose corresponding HARQ process is feedback-enabled or feedback-disabled.
- the method may further include (not shown): the terminal device receives one or more PDSCHs, for example, the terminal device may receive PDSCHs from time slot n-N+1 to time slot n, in 202 , using uplink resources (PUCCH or PUSCH) on time slot n+k1 to send HARQ feedback information for one or more PDSCHSs.
- the value of k1 may be indicated by the DCI or by high-layer signaling, and the meaning and indication manner of k1 may be determined according to the prior art.
- the HARQ feedback information is included in the HARQ-ACK codebook. In other words, when multiple DCIs are received, the time domain positions (for example, time slot n+k1) of the HARQ-ACK feedback of the multiple DCIs (or the PDSCHs scheduled by the multiple DCIs) are the same.
- the HARQ-ACK codebook may be a semi-static codebook.
- the semi-static codebook includes at least the HARQ feedback information for one or more PDSCHs, and the following only describes how to determine the HARQ feedback information for the one or more PDSCHs in different scenarios.
- the PDSCH scheduled by the DCI in the embodiment of the present application may refer to the PDSCH (configured PDSCH) corresponding to the PDSCH TDRA configuration indicated by the DCI, or may refer to the PDSCH actually scheduled by the DCI (actual PDSCH).
- the actual PDSCH may be a configured PDSCH that satisfies a first condition, or the actual PDSCH may be equal to the configured PDSCH.
- the first condition may be related to the semi-statically configured transmission direction (or in other words information on semi-statically configured transmission direction) and/or configured PRACH resources and/or information for dynamically scheduling uplink transmission and/or information related to dynamically configured transmission direction, for example, the actual PDSCH may not include
- the semi-statically configured transmission direction is the configured PDSCH of the uplink symbol, or the actual PDSCH may be the configured PDSCH with a corresponding HARQ process, and examples are not given here.
- DCI-scheduled PDSCH and “DCI-scheduled configured PDSCH”, “DCI-actually-scheduled PDSCH”, “DCI-scheduled timing PDSCH”, “actual The expressions “PDSCH” are interchangeable.
- the expressions of "HARQ feedback information” and “HARQ-ACK information” can be interchanged.
- the terminal device when the terminal device does not configure or activate SPS, or regardless of whether the terminal device configures or activates SPS, when the PDSCH scheduled by the DCI includes the second PDSCH whose corresponding HARQ process is feedback-disabled, the second PDSCH
- the HARQ feedback information corresponding to the two PDSCHs is not related to the decoding result of the second PDSCH, or the HARQ feedback information corresponding to the second PDSCH is related to the decoding result of the second PDSCH.
- the HARQ feedback information corresponding to the second PDSCH is irrelevant to the decoding result of the second PDSCH.
- the second PDSCH may be one or more, because the HARQ process corresponding to the second PDSCH is disabled for feedback, that is, the terminal device may not send the HARQ feedback information for the second PDSCH of the HARQ process, which , the HARQ feedback information corresponding to the second PDSCH may be directly set to NACK without considering the actual decoding result of the second PDSCH.
- the terminal device when the terminal device does not configure or activate SPS, or regardless of whether the terminal device configures or activates SPS, when the PDSCH scheduled by the DCI includes the first PDSCH whose corresponding HARQ process is feedback-enabled, the The HARQ feedback information corresponding to the first PDSCH is related to the decoding result of the first PDSCH.
- the first PDSCH may be one or more, since the HARQ process corresponding to the first PDSCH is feedback-enabled, that is, the terminal device needs to send HARQ feedback information for the first PDSCH of the HARQ process, at this time , it is necessary to consider the actual decoding result of the first PDSCH.
- the decoding When the decoding is successful (reception is successful), set the HARQ feedback information corresponding to the first PDSCH as ACK, and when the decoding fails (reception failure), set the HARQ feedback information corresponding to the first PDSCH The feedback information is set to NACK.
- the HARQ feedback information corresponding to the SPS PDSCH and the second PDSCH is related to the decoding result of the first PDSCH (when the decoding is successful (reception is successful), the HARQ feedback information corresponding to the first PDSCH is set as ACK, and when the decoding fails (reception failure), set the HARQ feedback information corresponding to the first PDSCH as NACK).
- the HARQ process corresponding to the SPS PDSCH can be determined using the following formula (1) or (2):
- HARQ Process ID [floor(CURRENT_slot ⁇ 10/(numberOfSlotsPerFrame ⁇ periodicity))]modulo nrofHARQ-Processes
- HARQ Process ID [floor(CURRENT_slot ⁇ 10/(numberOfSlotsPerFrame ⁇ periodicity))]modulo nrofHARQ-Processes+harq-ProcID-Offset Formula (2)
- CURRENT_slot is equal to [(SFN ⁇ numberOfSlotsPerFrame)+slot number in the frame], where numberOfSlotsPerFrame is the number of time slots included in a system frame, nrofHARQ-Processes is the number of HARQ processes, and harq-ProcID-Offset is the HARQ process identifier
- the offset (for example, the offset relative to the HARQ process ID 0) is included in the SPS configuration information SPS-Config.
- the HARQ process identifier associated with the start slot of the downlink transmission can be determined by formula (1).
- the The HARQ process identifier associated with the slot can be determined by formula (2).
- the HARQ process identifier of the SPS PDSCH is also related to the number of PDSCHs scheduled by the DCI and/or the PDSCH time domain resources in at least two PDSCHs time domain resources scheduled by the DCI The serial number is related, and details can be referred to the prior art, and details will not be repeated here.
- the HARQ process corresponding to the SPS PDSCH it is also necessary to determine the HARQ process corresponding to the SPS PDSCH according to whether the HARQ process is feedback enabled or disabled, for example, within the range of 0 ⁇ harq-ProcID-Offset
- the HARQ processes corresponding to the HARQ process identifiers are all with HARQ feedback enabled, or all of which are disabled with HARQ feedback, and examples will not be given here.
- the method of determining the HARQ feedback information corresponding to the SPS PDSCH and the second PDSCH is the same, including: the HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH, that is, the decoding result of the SPS PDSCH is ignored, and the corresponding HARQ feedback information of the SPS PDSCH
- the HARQ feedback information is set to NACK
- the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH, that is, the decoding result of the second PDSCH is ignored, and the HARQ feedback information corresponding to the second PDSCH is set to NACK.
- the HARQ feedback information corresponding to the second PDSCH and the SPS PDSCH is still set as NACK.
- the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH
- the HARQ feedback information corresponding to the second PDSCH is related to the decoding result of the second PDSCH, that is, the SPS PDSCH is successfully decoded (received successfully)
- the HARQ feedback information corresponding to the SPS PDSCH is set to ACK
- the HARQ feedback information corresponding to the SPS PDSCH is set to NACK
- the second PDSCH decoding is successful (reception is successful) set
- the HARQ feedback information corresponding to the second PDSCH is set as ACK, and when the decoding of the second PDSCH fails (reception fails),
- the different determination methods of the HARQ feedback information corresponding to the SPS PDSCH and the second PDSCH include: the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH, and the HARQ feedback information corresponding to the second PDSCH is related to the first PDSCH
- the decoding results of the two PDSCHs are irrelevant, that is, the decoding results of the second PDSCH are ignored, and the HARQ feedback information corresponding to the second PDSCH is set to NACK (even if the second PDSCH is successfully decoded (received successfully), the HARQ feedback information corresponding to the second PDSCH is still Set to NACK), that is, when the SPS PDSCH decoding is successful (reception is successful), the HARQ feedback information corresponding to the SPS PDSCH is set to ACK, and when the SPS PDSCH decoding fails (reception failure), the HARQ feedback information corresponding to the SPS PDSCH is set to ACK.
- the HARQ feedback information corresponding to the second PDSCH is always NACK; or the HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH, that is, the decoding result of the SPS PDSCH is ignored, and the HARQ corresponding to the SPS PDSCH
- the feedback information is set to NACK (even if the SPS PDSCH is successfully decoded (received successfully), the HARQ feedback information corresponding to the SPS PDSCH is still set to NACK), and the HARQ feedback information corresponding to the second PDSCH is related to the decoding result of the second PDSCH, That is, when the second PDSCH decoding is successful (reception is successful), the HARQ feedback information corresponding to the second PDSCH is set to ACK, and when the second PDSCH decoding fails (reception failure), the HARQ feedback information corresponding to the second PDSCH is set to ACK. is NACK, but the HARQ feedback information
- the PDSCH whose feedback is enabled corresponding to the HARQ process is called the first PDSCH
- the PDSCH whose feedback is disabled corresponding to the HARQ process is called the second PDSCH
- the first PDSCH and/or the second PDSCH can be the above-mentioned configuration
- the at least one DCI includes a first DCI and/or a second DCI and/or a third DCI
- the multiple PDSCHs include at least one first PDSCH and at least one second DCI PDSCH
- the second DCI schedules multiple PDSCHs (or can schedule multiple PDSCHs), and the multiple PDSCHs are all second PDSCHs, or the second DCI only schedules one PDSCH (only one PDSCH can be scheduled), and the one PDSCH It is the second PDSCH
- the third DCI schedules multiple PDSCHs (or can schedule multiple PDSCHs), and the multiple PDSCHs are all the first PDSCH, or the third DCI schedules one PDSCH (only one PDSCH can be scheduled), the One PDSCH is the first PDSCH.
- the terminal device may only receive one or more first DCIs, or only receive one or more second DCIs, or only receive one or more third DCIs, or receive at least one first DCI In addition to one DCI or at least one second DCI, at least one third DCI is also received.
- the following describes how to determine the HARQ feedback information of the one or more PDSCHs in the case of receiving different DCIs.
- the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH (ignoring the actual decoding result of the second PDSCH), the first The HARQ feedback information of the PDSCH is related to the decoding result of the first PDSCH; or, the HARQ feedback information of the first PDSCH is related to the decoding result of the first PDSCH, and the HARQ feedback information of the second PDSCH is related to the decoding result of the second PDSCH The results are relevant.
- the HARQ feedback information corresponding to the second PDSCH is NACK
- the HARQ feedback information corresponding to the first PDSCH is set as ACK
- the decoding of the first PDSCH fails (reception failure) , setting the HARQ feedback information corresponding to the first PDSCH as NACK.
- the HARQ feedback information corresponding to the second PDSCH is set to ACK
- the second PDSCH decoding fails (reception fails) the HARQ feedback information corresponding to the second PDSCH is set to NACK
- the first PDSCH decoding is successful (reception is successful) the HARQ feedback information corresponding to the first PDSCH is set to ACK
- the first PDSCH decoding fails (reception failure) the HARQ feedback information corresponding to the first PDSCH is set to NACK.
- only receiving at least one first DCI refers to the predetermined time period before the feedback time domain position (for example, time slot n+k) corresponding to the HARQ feedback timing (the aforementioned k) corresponding to the first DCI
- the terminal device does not receive other second DCI and/or third DCI corresponding to the time domain position (for example, time slot n+k), or in other words, at the HARQ feedback timing (the aforementioned k) corresponding to the first DCI
- the predetermined time period before the time domain position for example, time slot n+k
- the second DCI and/or the third DCI is received, but the time slot corresponding to the HARQ feedback timing corresponding to the second DCI and/or the third DCI
- the position is different from the time domain position (for example, time slot n+k) corresponding to the HARQ feedback timing (the aforementioned k) corresponding to the first DCI, and also indicates that only at least one first DCI is received.
- the HARQ feedback information corresponding to the PDSCH scheduled by the second DCI is related to the decoding result of the PDSCH scheduled by the second DCI; or, the second DCI schedules
- the HARQ feedback information corresponding to the PDSCH has nothing to do with the decoding result of the PDSCH scheduled by the second DCI (the actual decoding result of the second PDSCH is ignored).
- the HARQ feedback information corresponding to the second PDSCH is set to ACK
- the HARQ feedback information corresponding to the second PDSCH is set to NACK, or ignore the decoding result of the second PDSCH scheduled by the second DCI, and set the HARQ feedback information corresponding to the second PDSCH as NACK.
- only receiving at least one second DCI refers to the predetermined time period before the feedback time domain position (for example, time slot n+k) corresponding to the HARQ feedback timing (the aforementioned k) corresponding to the second DCI
- the terminal device does not receive other first DCI and/or third DCI corresponding to the time domain position (for example, time slot n+k), or in other words, at the HARQ feedback timing (the aforementioned k) corresponding to the second DCI
- the predetermined time period before the time domain position for example, time slot n+k
- the HARQ feedback timing corresponding to the first DCI and/or the third DCI corresponds to the time slot
- the position is different from the time domain position (for example, time slot n+k) corresponding to the HARQ feedback timing (the aforementioned k) corresponding to the second DCI, and also indicates that only at least one second DCI is received.
- the HARQ feedback information corresponding to the PDSCH scheduled by the third DCI is related to the decoding result of the PDSCH scheduled by the third DCI.
- the HARQ feedback information corresponding to the first PDSCH is set as ACK;
- the HARQ feedback information is set to NACK.
- only receiving at least one third DCI refers to the predetermined time period before the feedback time domain position (for example, time slot n+k) corresponding to the HARQ feedback timing (the aforementioned k) corresponding to the third DCI
- the terminal device does not receive other first DCI and/or second DCI corresponding to the time domain position (for example, time slot n+k), or in other words, at the HARQ feedback timing (the aforementioned k) corresponding to the third DCI
- the terminal device does not receive other first DCI and/or second DCI corresponding to the time domain position (for example, time slot n+k), or in other words, at the HARQ feedback timing (the aforementioned k) corresponding to the third DCI Within a predetermined time period before the time domain position (for example, time slot n+k), if the first DCI and/or the second DCI is received, but the HARQ feedback timing corresponding to the first DCI and/or the second DCI corresponds to the time slot
- the position is
- the HARQ feedback information corresponding to the second PDSCH is the same as the second DCI
- the decoding result of the PDSCH is irrelevant (the actual decoding result of the second PDSCH is ignored)
- the HARQ feedback information corresponding to the first PDSCH is related to the decoding result of the first PDSCH; or, the HARQ feedback information corresponding to the first PDSCH is related to the first PDSCH
- the decoding result of the PDSCH is related, and the HARQ feedback information corresponding to the second PDSCH is related to the decoding result of the second PDSCH.
- the HARQ feedback information corresponding to the second PDSCH is NACK
- the HARQ feedback information corresponding to the first PDSCH is set as ACK
- the decoding of the first PDSCH fails (reception failure) , setting the HARQ feedback information corresponding to the first PDSCH as NACK.
- the HARQ feedback information corresponding to the second PDSCH is set to ACK
- the second PDSCH decoding fails (reception fails) the HARQ feedback information corresponding to the second PDSCH is set to NACK
- the first PDSCH decoding is successful (reception is successful) the HARQ feedback information corresponding to the first PDSCH is set to ACK
- the first PDSCH decoding fails (reception failure) the HARQ feedback information corresponding to the first PDSCH is set to NACK.
- the terminal device within a predetermined period of time before the feedback time domain position (for example, time slot n+k) corresponding to the HARQ feedback timing (the aforementioned k) corresponding to the first DCI and/or the second DCI, the terminal device also The third DCI corresponding to the time domain position (for example, time slot n+k) is received, or in other words, the time domain position corresponding to the HARQ feedback timing (the aforementioned k) corresponding to the first DCI and/or the second DCI (for example Within a predetermined time period before time slot n+k), the third DCI is received, and the time slot position corresponding to the HARQ feedback timing corresponding to the third DCI is the HARQ feedback timing corresponding to the first DCI or the second DCI (the aforementioned k ) correspond to the same time domain position (for example, time slot n+k).
- the terminal device is configured or activated with SPS, and the HARQ-ACK process corresponding to the PDSCH (SPS PDSCH) of the SPS is HARQ feedback disabled, and only receives at least one of the first DCI or only receives When at least one of the third DCI is reached, or when the terminal device is configured or activated with SPS, and the HARQ-ACK process corresponding to the SPS PDSCH is HARQ feedback disabled, and receives at least one of the first DCI and/or receives When at least one of the second DCI is also received at least one third DCI:
- the determination method of the HARQ feedback information corresponding to the SPS PDSCH and the second PDSCH is the same, the HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH, and the HARQ feedback information corresponding to the second PDSCH is related to the decoding of the second PDSCH The result is irrelevant, the HARQ feedback information of the first PDSCH is related to the decoding result of the first PDSCH;
- the HARQ feedback information corresponding to the second PDSCH and the feedback information corresponding to the SPS PDSCH are NACK (the actual decoding results of the second PDSCH and the SPS PDSCH are ignored), and when the decoding of the first PDSCH is successful (reception is successful), the first PDSCH
- the corresponding HARQ feedback information is set as ACK, and when the decoding of the first PDSCH fails (reception fails), the HARQ feedback information corresponding to the first PDSCH is set as NACK.
- the determination method of the HARQ feedback information corresponding to the SPS PDSCH and the second PDSCH is the same, the HARQ feedback information of the first PDSCH is related to the decoding result of the first PDSCH, and the HARQ feedback information of the second PDSCH is related to the second PDSCH
- the decoding result of the SPS PDSCH is related, and the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH;
- the HARQ feedback information corresponding to the second PDSCH is set to ACK
- the second PDSCH decoding fails (reception fails) the HARQ feedback information corresponding to the second PDSCH is set to NACK
- the HARQ feedback information corresponding to the first PDSCH is set to ACK
- the HARQ feedback information corresponding to the first PDSCH is set to NACK
- the SPS PDSCH decoding is successful (reception is successful)
- the HARQ feedback information corresponding to the SPS PDSCH is set to ACK
- the SPS PDSCH decoding fails (reception failure) the HARQ feedback information corresponding to the SPS PDSCH is set to NACK.
- the determination method of the HARQ feedback information corresponding to the SPS PDSCH and the second PDSCH is different, the HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH, and the HARQ feedback information of the first PDSCH is different from the HARQ feedback information of the first PDSCH.
- the decoding result is related, and the HARQ feedback information of the second PDSCH is related to the decoding result of the second PDSCH;
- the feedback information corresponding to the SPS PDSCH is NACK (the actual decoding result of the SPS PDSCH is ignored), and when the decoding of the first PDSCH is successful (reception is successful), the HARQ feedback information corresponding to the first PDSCH is set to ACK, and the first PDSCH
- the HARQ feedback information corresponding to the first PDSCH is set to NACK
- the second PDSCH decoding is successful (reception is successful)
- the HARQ feedback information corresponding to the second PDSCH is set to ACK
- the HARQ feedback information corresponding to the second PDSCH is set as NACK.
- the determination method of the HARQ feedback information corresponding to the SPS PDSCH and the second PDSCH is different, the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH, and the HARQ feedback information corresponding to the second PDSCH is related to the second PDSCH
- the decoding result of the first PDSCH is irrelevant, and the HARQ feedback information of the first PDSCH is related to the decoding result of the first PDSCH.
- the feedback information corresponding to the second PDSCH is NACK (the actual decoding result of the second PDSCH is ignored), and when the decoding of the first PDSCH is successful (reception is successful), the HARQ feedback information corresponding to the first PDSCH is set as ACK,
- the HARQ feedback information corresponding to the first PDSCH is set to NACK;
- the SPS PDSCH decoding is successful (reception is successful)
- the HARQ feedback information corresponding to the SPS PDSCH is set to ACK
- the SPS PDSCH decoding In case of failure (reception failure), the HARQ feedback information corresponding to the SPS PDSCH is set to NACK.
- the terminal device when the terminal device is configured or activated with SPS, and the HARQ-ACK process corresponding to the PDSCH (SPS PDSCH) of the SPS is HARQ feedback disabled, and only when at least one second DCI is received:
- the HARQ feedback information corresponding to the SPS PDSCH and the second PDSCH are determined in the same manner, the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH, and the HARQ feedback information corresponding to the PDSCH scheduled by the second DCI is related to the second PDSCH.
- the decoding results of PDSCH scheduled by DCI are related;
- the HARQ feedback information corresponding to the second PDSCH is set to ACK
- the second PDSCH decoding fails (reception failure)
- the HARQ feedback information corresponding to the second PDSCH is set to NACK
- the SPS PDSCH decoding fails (reception failure)
- the HARQ feedback information corresponding to the SPS PDSCH is set to ACK
- the SPS PDSCH decoding fails (reception failure)
- the HARQ feedback information corresponding to the SPS PDSCH is set to NACK.
- the determination method of the HARQ feedback information corresponding to the SPS PDSCH and the second PDSCH is the same, the HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH, and the HARQ feedback information corresponding to the PDSCH scheduled by the second DCI is related to the HARQ feedback information corresponding to the SPS PDSCH The decoding result of the second PDSCH is irrelevant.
- both the HARQ feedback information corresponding to the second PDSCH and the HARQ feedback information corresponding to the SPS PDSCH are set to NACK.
- the terminal device is configured or activated with SPS
- the HARQ-ACK process corresponding to the PDSCH (SPS PDSCH) of the SPS is HARQ feedback enabled, and only receives at least one of the first DCI or only When receiving at least one of the second DCI or only receiving at least one of the third DCI, or when the terminal device is configured or activated with SPS, and the HARQ-ACK process corresponding to the SPS PDSCH is HARQ feedback enabled, and When at least one of the first DCI and/or at least one of the second DCI is received, and at least one of the third DCI is also received,
- the determination method of the HARQ feedback information corresponding to the SPS PDSCH and the second PDSCH is the same, the HARQ feedback information corresponding to the SPS PDSCH is independent of the decoding result of the SPS PDSCH, and the HARQ feedback information corresponding to the second PDSCH is related to the decoding result of the second PDSCH Irrelevant, the HARQ feedback information of the first PDSCH is related to the decoding result of the first PDSCH;
- the HARQ feedback information corresponding to the second PDSCH is set as ACK
- the HARQ feedback information corresponding to the first PDSCH is set as NACK.
- the determination method of the HARQ feedback information corresponding to the SPS PDSCH and the second PDSCH is the same, the HARQ feedback information of the first PDSCH is related to the decoding result of the first PDSCH, and the HARQ feedback information of the second PDSCH is related to the second PDSCH
- the decoding result of the SPS PDSCH is related, and the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH.
- the HARQ feedback information corresponding to the second PDSCH is set to ACK
- the HARQ feedback information corresponding to the second PDSCH is set to NACK
- the SPS PDSCH decoding is successful (reception is successful)
- the SPS PDSCH decoding fails (reception failure)
- the HARQ feedback information corresponding to the first PDSCH is set as ACK, and when the first PDSCH decoding fails (reception fails), the HARQ feedback information corresponding to the first PDSCH is set as NACK.
- the first DCI and/or the second DCI and/or the third DCI correspond to the SPS PDSCH
- the corresponding feedback time domain positions (or the corresponding time domain positions of HARQ-ACK information feedback) of the HARQ feedback timing (the aforementioned k) are the same.
- the meaning of receiving only the first DCI and/or receiving only the second DCI and/or receiving only the third DCI is as described in (1), and will not be repeated here.
- the HARQ feedback information can be sent under the condition of supporting the HARQ feedback enabling/disabling HARQ mechanism; therefore, the uplink control signaling overhead can be reduced, and at the same time, the network device does not need to wait for the terminal device to report the HARQ feedback information. New data can be sent, thereby reducing data transmission delay.
- FIG. 3 is a schematic diagram of an information feedback method according to an embodiment of the present application, which is applied to the terminal device side. As shown in FIG. 3 , the method includes:
- the fourth downlink control information (DCI) received by the terminal device where the fourth DCI includes accumulated downlink assignment indicator (counter downlink assignment indicator, C-DAI) information and/or total DAI (total downlink assignment indicator, C-DAI) )information;
- the terminal device determines HARQ feedback information according to the accumulated DAI information and/or total DAI information.
- the fourth DCI may be used to schedule PDSCHs, and the PDSCHs scheduled by the DCI include PDSCHs whose corresponding HARQ processes are feedback-enabled or feedback-disabled.
- the fourth DCI can schedule one or more PDSCHs; the DCI schedules one PDSCH, and the PDSCH time domain resource allocation table applied by the DCI only supports scheduling one PDSCH through one DCI; or, the DCI schedules one or more PDSCHs, and the DCI applies
- the PDSCH time-domain resource allocation table supports scheduling multiple PDSCHs through one DCI.
- the fourth DCI can also be used to schedule PUSCH (one or more PUSCHs), or the fourth DCI does not schedule data transmission, no more examples here, the format of the fourth DCI can be 1_0 or 1_1, for details, please refer to current technology.
- the fourth DCI includes C-DAI and/or T-DAI.
- C-DAI represents the accumulated received and DCI format 1_1 represented by ⁇ serving cell, PDCCH monitoring opportunity ⁇ pair
- the T-DAI value indicates the total number of ⁇ serving cell, PDCCH monitoring opportunity ⁇ pairs, the T-DAI of all serving cells on the same PDCCH monitoring opportunity is the same, T-DAI is updated with the PDCCH monitoring opportunity index, C-DAI indicates, T- DAI representation,
- Figure 4 is a schematic diagram of the traditional method C-DAI and T-DAI, as shown in Figure 4, at the first PDCCH monitoring opportunity, the DCI received on serving cells 1 and 3 includes C-DAI and T-DAI DAI, the DCI received on the serving cell 2 includes C-DAI, wherein the value of T-DAI is 3, and the C-DAI on each serving cell is arranged in ascending order according to the index of the serving cell; at the second PDCCH monitoring opportunity , the DCI received on serving cell 1 includes C-DAI and T-DAI, and the DCI received on serving cell 3 includes C-DAI, wherein the value of T-DAI is 5, and the value of T-DAI on serving cells 1 and 3
- a C-DAI and T-DAI counting and statistical method different from the traditional method is proposed.
- the C-DAI and T-DAI When counting T-DAI, it is necessary to consider whether the PDSCH scheduled by the DCI includes a PDSCH whose corresponding HARQ process is feedback-disabled or feedback-enabled.
- the accumulated DAI information and/or the total DAI information for the DCI used to schedule the PDSCH use DCI as the granularity Counting and/or counting with PDSCH as the granularity, the following describes the C-DAI and T-DAI counting and statistical methods and how to determine the HARQ feedback information according to the accumulated DAI information and/or total DAI information under each method.
- the DCI that can participate in the counting may include the DCI that actually receives the scheduled PDSCH, may also include missed (not received) (for scheduling or not used for scheduling PDSCH) DCI, and may also include activating the SPS
- the DCI can also include the actually received DCI including the PDSCH that conflicts with the uplink, but the DCI that can participate in the counting needs to include at least one DCI that has a corresponding HARQ process.
- the PDSCH scheduled by the DCI in each example figure is Refers to the PDSCH corresponding to the HARQ process, and this description is also applicable to the following (2).
- Figures 28A to 28C are schematic diagrams of C-DAI and T-DAI counted at the granularity of DCI.
- the uplink resources (time domain positions) for sending the HARQ feedback information corresponding to the PDSCH scheduled by the DCI are the same.
- C-DAI and T-DAI are counted at the granularity of actually received DCI, as shown in Figure 28B, the difference from Figure 28A is that the missing (not received) (for (Scheduled or not used for scheduling PDSCH) DCI also participates in counting, as shown in FIG. 28C , DCI including at least one PDSCH with uplink conflict also participates in counting.
- the C-DAI and/or T-DAI for the DCI used to schedule the PDSCH is only counted in the scheduled PDSCH containing at least one corresponding HARQ process is feedback enabled DCI of PDSCH.
- the C-DAI and/or T-DAI do not count the scheduled PDSCH and only include the DCI of the PDSCH whose corresponding HARQ process is feedback-disabled.
- the foregoing DCI refers to a general DCI, and does not specifically refer to the fourth DCI in 301 .
- the PDSCH scheduled by the fourth DCI includes at least one first PDSCH whose corresponding HARQ process is feedback enabled and at least one corresponding HARQ process whose feedback is disabled second PDSCH,
- the C-DAI and/or T-DAI counts the fourth DCI, or in other words, counts it into the fourth DCI.
- the meanings of C-DAI and/or T-DAI in the fourth DCI are similar to the existing ones and will not be repeated here.
- FIG. 5 is a schematic diagram of C-DAI and T-DAI counted at the granularity of DCI. 1 second PDSCH, but since the PDSCH scheduled by the DCI also includes 3 first PDSCHs, this DCI is also counted by C-DAI and/or T-DAI, that is, at the first PDCCH monitoring opportunity, the service
- the DCI received on cells 1 and 3 includes C-DAI and T-DAI
- the DCI received on serving cell 2 includes C-DAI, where the value of T-DAI is 3, and the C-DAI on each serving cell -DAI is arranged in ascending order of the serving cell index
- the DCI received on serving cell 1 includes C-DAI and T-DAI
- the DCI received on serving cell 3 includes C-DAI , where the value of T-DAI is 5, and the C-DAI on serving cells 1 and 3 are arranged in ascending order of serving cell indexes.
- the terminal device determining the HARQ feedback information according to the accumulated DAI information and/or the total DAI information includes: the HARQ process corresponding to the PDSCH scheduled by the fourth DCI is the HARQ feedback information corresponding to the first PDSCH with feedback enabled and The decoding result of the first PDSCH is related, and the corresponding HARQ process in the PDSCH scheduled by the fourth DCI is feedback disabled.
- the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH, that is, ignore the second PDSCH In the actual decoding result, the HARQ feedback information corresponding to the second PDSCH is set as NACK, when the first PDSCH decoding is successful (reception is successful), the HARQ feedback information corresponding to the first PDSCH is set as ACK, and when the first PDSCH decoding fails ( reception failure), set the HARQ feedback information corresponding to the first PDSCH as NACK.
- the HARQ process corresponding to the PDSCH scheduled by the fourth DCI is a feedback-enabled HARQ feedback information corresponding to the first PDSCH is related to the decoding result of the first PDSCH, and the HARQ process corresponding to the PDSCH scheduled by the fourth DCI is a feedback
- the HARQ feedback information corresponding to the disabled second PDSCH is related to the decoding result of the second PDSCH, that is, when the first PDSCH is successfully decoded (received successfully), the HARQ feedback information corresponding to the first PDSCH is set as ACK, and the first PDSCH
- the HARQ feedback information corresponding to the first PDSCH is set to NACK; when the second PDSCH decoding is successful (reception is successful), the HARQ feedback information corresponding to the second PDSCH is set to ACK,
- the HARQ feedback information corresponding to the second PDSCH is set as NACK.
- the PDSCH scheduled by the fourth DCI is the first PDSCH
- the C-DAI and/or T-DAI counts the fourth DCI, or counts the fourth DCI Fourth DCI.
- the meanings of C-DAI and/or T-DAI in the fourth DCI are similar to the existing ones and will not be repeated here.
- the PDSCHs scheduled by the DCIs received by each serving cell at each PDCCH monitoring opportunity only include one or more first PDSCHs and do not include the second PDSCH.
- each DCI is covered by C-DAI and/or T -DAI is included, that is, at the first PDCCH monitoring opportunity, the DCI received on serving cells 1 and 3 includes C-DAI and T-DAI, and the DCI received on serving cell 2 includes C-DAI, Among them, the value of T-DAI is 3, and the C-DAI on each serving cell is arranged in ascending order according to the serving cell index; at the second PDCCH monitoring opportunity, the DCI received on serving cell 1 includes C-DAI and T-DAI.
- DAI the DCI received on serving cell 3 includes C-DAI, wherein the value of T-DAI is 5, and the C-DAI on serving cells 1 and 3 are arranged in ascending order of serving cell index.
- the terminal device determining the HARQ feedback information according to the accumulated DAI information and/or the total DAI information includes: the HARQ feedback information corresponding to the first PDSCH scheduled by the fourth DCI is related to the decoding result of the first PDSCH, and in When the first PDSCH is successfully decoded (received successfully), the HARQ feedback information corresponding to the first PDSCH is set as ACK, and when the first PDSCH decoding fails (reception fails), the HARQ feedback information corresponding to the first PDSCH is set as NACK.
- the PDSCH scheduled by the fourth DCI is the second PDSCH
- the C-DAI and/or T-DAI does not count the fourth DCI, or in other words, when counting, it does not count into the fourth DCI.
- the C-DAI and/or T-DAI in the fourth DCI may be the cumulative number of received DCI (the DCI scheduling PDSCH includes at least one first PDSCH), such as C-DAI and/or T-DAI It may be equal to the total number of DCIs (the DCI scheduling PDSCH includes at least one first PDSCH) received on each serving cell at each monitoring occasion until the fourth DCI receiving PDCCH monitoring occasion.
- FIG. 6 is a schematic diagram of C-DAI and T-DAI counted at the granularity of DCI. As shown in Figure 6, the difference from Figure 4 is that only The second PDSCH is included, but the first PDSCH is not included. Therefore, this DCI is not counted by C-DAI and/or T-DAI, that is, in the DCI received on serving cells 2 and 3 at the first PDCCH monitoring opportunity Including C-DAI and T-DAI, where the value of T-DAI is 2, and the C-DAI on each serving cell is arranged in ascending order according to the index of the serving cell; at the second PDCCH monitoring opportunity, receiving on serving cells 1 and 3
- the received DCI includes C-DAI and T-DAI, where the value of T-DAI is 4, and the C-DAI on serving cells 1 and 3 are arranged in ascending order of serving cell indexes.
- FIG. 7 is a schematic diagram of C-DAI and T-DAI counted at the granularity of DCI. As shown in FIG. Including the first PDSCH, therefore, this DCI is not counted by C-DAI and/or T-DAI. The difference from FIG. 6 is that this DCI (fourth DCI) may include T-DAI, and T-DAI may be equal to The total number of DCI (the DCI scheduling PDSCH includes at least one first PDSCH) received on each serving cell at the first PDCCH monitoring timing is 2.
- FIG. 8 is a schematic diagram of C-DAI and T-DAI counted at the granularity of DCI. As shown in FIG. The first PDSCH is included, therefore, this DCI is not included in the C-DAI and/or T-DAI. The difference from FIG. 7 is that the DCI (fourth DCI) may also include C-DAI.
- the C-DAI may be equal to the total number 2 of DCI (the DCI scheduling PDSCH includes at least one first PDSCH) received on each serving cell at the first PDCCH monitoring occasion.
- Figures 5 to 8 are only combined with the scene in Figure 28A to illustrate how to count with DCI as the granularity, but Figures 5 to 8 can also be combined with the scenes in Figure 28B to 28C, which is not described here Let me repeat them one by one.
- the terminal device after the terminal device receives multiple DCIs, it can generate a dynamic codebook after determining the HARQ feedback information of the PDSCHs scheduled by each DCI using one of the same methods as the PDSCHs scheduled by the fourth DCI above.
- This book includes the HARQ feedback information of X PDSCHs, X is equal to the T-DAI value in the last received DCI, the HARQ feedback information of a PDSCH scheduled by a certain DCI is arranged in the Yth position of the dynamic codebook, and Y is equal to the The value of C-DAI in the DCI, that is, the terminal device includes the HARQ feedback information in the codebook and sends it at the determined time domain position for sending the HARQ feedback information.
- the time domain position will be described later; in addition , in the case of considering SPS PDSCH, or in the case of supporting coding block groups, the generation method of the dynamic codebook can refer to the existing technology, and will not be repeated here.
- the PDSCH that can participate in the counting may include the PDSCH scheduled by the DCI that actually received the scheduled PDSCH, and may also include the PDSCH that was missed (not received) (for scheduling or not used for scheduling the PDSCH) DCI scheduling , may also include other PDSCHs not in conflict with the uplink that are actually received including the DCI scheduling of the PDSCH that conflicts with the uplink, but the DCI-scheduled PDSCH that can participate in the counting needs to have a corresponding HARQ process.
- Figure 29A to Figure 29C are schematic diagrams of C-DAI and T-DAI counted at the granularity of PDSCH, as shown in Figure 29A to Figure 29C, the uplink resources (time domain positions) for sending the HARQ feedback information corresponding to the PDSCH scheduled by the DCI are the same, As shown in Figure 29A, C-DAI and T-DAI are counted at the granularity of the actually received DCI-scheduled PDCCH, as shown in Figure 29B, the difference from Figure 29A is that the missing (not received) (for scheduling or not for scheduling PDSCH) DCI-scheduled PDSCHs can also participate in the counting, as shown in Figure 29C, the difference from Figure 29A is that scheduling other PDSCHs that include at least one DCI-scheduled PDSCH that conflicts with the uplink can also Participation counts.
- Figure 30A to Figure 30C are schematic diagrams of C-DAI and T-DAI counted at the granularity of PDSCH, as shown in Figure 30A to Figure 30C, the uplink resources (time domain positions) for sending the HARQ feedback information corresponding to the PDSCH scheduled by the DCI are the same,
- the difference from Figure 29A to Figure 29C is that when one DCI schedules multiple PDSCHs, the C-DAI in Figure 29A to Figure 29C indicates the sequence number corresponding to the last PDSCH scheduled by the DCI, while in Figure 30A to Figure 30C
- the C-DAI indicates the sequence number corresponding to the first PDSCH scheduled by the DCI. In the following, only the sequence number corresponding to the last PDSCH scheduled by the DCI indicated by the C-DAI will be described as an example.
- the C-DAI and/or T-DAI only count the PDSCHs whose corresponding HARQ processes are feedback-enabled for the PDSCHs scheduled by the DCI.
- the accumulated DAI information and/or the total DAI information do not count the PDSCH whose corresponding HARQ process is disabled for feedback.
- the foregoing DCI refers to a general DCI, and does not specifically refer to the fourth DCI in 301 .
- the PDSCH scheduled by the fourth DCI includes at least one first PDSCH whose corresponding HARQ process is feedback enabled and at least one corresponding HARQ process whose feedback is disabled second PDSCH,
- the C-DAI and/or T-DAI count the first PDSCH scheduled by the fourth DCI, or in other words, count the first PDSCH scheduled by the fourth DCI.
- the C-DAI and/or T-DAI in the fourth DCI may be equal to the cumulative number of first PDSCHs received on each serving cell at each monitoring opportunity up to the PDCCH monitoring opportunity received by the fourth DCI.
- Fig. 9 is a schematic diagram of C-DAI and T-DAI counted at the granularity of PDSCH.
- the DCI-scheduled PDSCH received by serving cell 1 at the first PDCCH monitoring opportunity includes a second PDSCH, but due to The PDSCH scheduled by the DCI also includes 3 first PDSCHs, and only 3 first PDSCHs in the fourth DCI are counted by C-DAI and/or T-DAI, that is, at the first PDCCH monitoring opportunity, serving cell 1 and
- the DCI received on 3 includes C-DAI and T-DAI
- the DCI received on serving cell 2 includes C-DAI, where the value of T-DAI is 6, and the C-DAI on each serving cell follows Serving cell indexes are arranged in ascending order;
- the DCI received on serving cell 1 includes C-DAI and T-DAI
- the DCI received on serving cell 3 includes C-DAI, wherein, The value of T-
- the terminal device determines the HARQ feedback information according to the accumulated DAI information and/or the total DAI information includes: the decoding result of the first PDSCH scheduled by the fourth DCI is correlated, and when the first PDSCH is successfully decoded (received successfully) , setting the HARQ feedback information corresponding to the first PDSCH as ACK, and setting the HARQ feedback information corresponding to the first PDSCH as NACK when the decoding of the first PDSCH fails (reception failure). That is to say, there is no need to generate the HARQ feedback information of the second PDSCH.
- the PDSCHs scheduled by the fourth DCI are all the first PDSCHs, and the C-DAI and/or T-DAI counts the first PDSCHs scheduled by the fourth DCI, or in When counting, each first PDSCH scheduled by the fourth DCI is included.
- the C-DAI in the fourth DCI may be equal to the current accumulated number of the scheduled first PDSCH up to the PDCCH monitoring opportunity received by the fourth DCI, and the T-DAI in the fourth DCI may be equal to the PDCCH received by the fourth DCI
- Figure 10 is a schematic diagram of C-DAI and T-DAI counted at the granularity of PDSCH.
- the DCI received on serving cells 1-3 includes C-DAI and T-DAI, where the value of T-DAI is 7, and the values of C-DAI are 5, 6, and 7 in turn;
- the DCI received on serving cells 1 and 3 includes C-DAI and T-DAI, where T-DAI The value of is 10, and the C-DAI on serving cells 1 and 3 are 9 and 10 respectively.
- the terminal device determines the HARQ feedback information according to the accumulated DAI information and/or the total DAI information includes: the decoding result of the first PDSCH scheduled by the fourth DCI is correlated, and when the first PDSCH is successfully decoded (received successfully) , setting the HARQ feedback information corresponding to the first PDSCH as ACK, and setting the HARQ feedback information corresponding to the first PDSCH as NACK when the decoding of the first PDSCH fails (reception failure). That is to say, since the fourth DCI does not include the second PDSCH, there is no need to generate HARQ feedback information of the second PDSCH.
- the PDSCHs scheduled by the fourth DCI are all the second PDSCHs, and the C-DAI and/or T-DAI does not count all the second PDSCHs scheduled by the fourth DCI, or When counting, all second PDSCHs scheduled by the fourth DCI are not counted.
- the C-DAI and/or T-DAI in the fourth DCI may be equal to the cumulative number of first PDSCHs received on each serving cell at each monitoring opportunity up to the PDCCH monitoring opportunity received by the fourth DCI.
- FIG 11 is a schematic diagram of C-DAI and T-DAI counting at the granularity of PDSCH.
- the second PDSCH scheduled by the fourth DCI is not scheduled DAI and/or T-DAI are included, that is, at the first PDCCH monitoring opportunity, the DCI received on serving cells 2-3 includes C-DAI and T-DAI, where the value of T-DAI is 3, The values of C-DAI are 1 and 3 in sequence; at the second PDCCH monitoring opportunity, the DCI received on serving cells 1 and 3 includes C-DAI and T-DAI, where the value of T-DAI is 6, The C-DAIs on serving cells 1 and 3 are 5 and 6 in sequence, and at the first PDCCH monitoring opportunity, the T-DAI included in the DCI received on serving cell 1 is 2.
- the terminal device after the terminal device receives multiple DCIs, it can generate a dynamic codebook after determining the HARQ feedback information of the PDSCHs scheduled by each DCI using one of the same methods as the PDSCHs scheduled by the fourth DCI above.
- This book includes the HARQ feedback information of X PDSCHs, X is equal to the T-DAI value in the last received DCI, the HARQ feedback information of a PDSCH scheduled by a certain DCI is arranged in the Yth position of the dynamic codebook, and Y is equal to the The value of C-DAI in the DCI, that is, the terminal equipment includes the HARQ feedback information in the codebook and sends it at the determined time domain position for sending the HARQ feedback information.
- the time domain position will be described later; in addition , in the case of considering SPS PDSCH, or in the case of supporting coding block groups, the generation method of the dynamic codebook can refer to the existing technology, and will not be repeated here.
- the methods in (1) and (2) above may be performed individually or in combination, which is not limited in this embodiment of the present application.
- the C-DAI and/or T-DAI in the fourth DCI are specific values.
- the HARQ process corresponding to the scheduled (one or more) PDSCHs is only the fourth DCI (one or more) that is disabled for feedback, but there are missing detections (not received) (for scheduling or not for scheduling)
- DCI for example, determined according to the C-DAI/T-DAI in the received DCI
- the C-DAI and/or T-DAI in the fourth DCI is set to a specific value, e.g.0, and does not need to be changed according to the scheduling situation (it does not need to be changed according to the number of other DCIs or the number of PDSCHs scheduled by other DCIs).
- the method may further include (not shown): the terminal device receives one or more PDSCHs, for example, the terminal device may receive PDSCHs from time slot n-N+1 to time slot n, and the method further Can include:
- the terminal device sends the HARQ feedback information at the time domain position corresponding to the received PDSCH for sending the HARQ feedback information.
- the terminal device determines the time domain position for sending the HARQ feedback information according to the time domain position of the last PDSCH scheduled by the DCI corresponding to the HARQ feedback enabled HARQ process.
- the terminal device determines the time-domain position for sending the HARQ feedback information of the DCI-scheduled PDSCH according to the time-domain position of the last PDSCH corresponding to the HARQ feedback-enabled HARQ process of the DCI scheduling and the HARQ feedback timing
- the HARQ feedback timing k indicates the time domain offset between the time domain position of the last PDSCH of the DCI scheduling corresponding to the HARQ feedback enabled HARQ process and the time domain position of the HARQ feedback information of the DCI scheduled PDSCH .
- the time domain location may be a slot and/or a symbol.
- Figures 12 and 13 are schematic diagrams of the time-domain positions for sending HARQ feedback information. As shown in Figures 12 and 13, the time-domain position slot n+k corresponds to the last HARQ-ACK feedback enabled HARQ of the DCI scheduling. The offset of the time slot n where the PDSCH of the process is located is equal to the HARQ feedback timing k, and the value of k may be indicated by the DCI or by high-layer signaling.
- the fourth DCI includes a first information field, and the first information field is used to indicate the HARQ feedback timing, or, the method further includes: (not shown)
- the terminal device receives high-layer signaling, where the high-layer signaling is used to indicate the HARQ feedback timing k.
- the bearer mode of k reference may be made to the prior art, which will not be repeated here.
- the time domain of the HARQ-ACK feedback of the multiple DCIs (or the PDSCHs scheduled by the multiple DCIs) The positions (eg slot n+k) are the same.
- the method of determining whether the PDSCH scheduled by the DCI is the first PDSCH or the second PDSCH reference may be made to the embodiment of the first aspect, which will not be repeated here.
- the HARQ feedback information can be sent under the condition of supporting the HARQ feedback enabling/disabling HARQ mechanism; therefore, the uplink control signaling overhead can be reduced, and at the same time, the network device does not need to wait for the terminal device to report the HARQ feedback information. New data can be sent, thereby reducing data transmission delay.
- the embodiment of the present application provides an information feedback method, which is explained from the side of the terminal device, and the overlapping parts with the embodiment of the first or second aspect will not be repeated.
- Fig. 14 is a schematic diagram of an information receiving method according to an embodiment of the present application. As shown in Fig. 14, the method includes:
- the terminal device receives a PDSCH, and the HARQ process corresponding to the PDSCH is disabled for feedback;
- the terminal device does not send the HARQ feedback codebook at the time domain position corresponding to the PDSCH for sending the HARQ feedback codebook.
- the PDSCH may be a PDSCH in one or more PDSCHs scheduled by DCI, or an SPS PDSCH.
- the PDSCH is a PDSCH in one or more PDSCHs scheduled by DCI, for example , the DCI schedules multiple PDSCHs, and the terminal device receives one or part or all of the PDSCHs of the scheduled multiple PDSCHs.
- the method for determining that the HARQ process corresponding to the PDSCH is feedback-disabled is as described in the first aspect, and will not be repeated here.
- HARQ feedback information can not be sent while supporting the HARQ mechanism of HARQ feedback enabling/disabling and the scheduling method of scheduling multiple PDSCHs through one DCI; Reduce the complexity and power consumption of terminal equipment monitoring PDCCH, and also reduce the resource overhead for sending downlink control signaling (DCI) to improve data throughput; on the other hand, it can reduce the overhead of uplink control signaling, and at the same time, The network device can send new data without waiting for the terminal device to report the HARQ feedback information, thereby reducing the data transmission delay.
- DCI downlink control signaling
- the determination position of the time domain position can refer to the embodiment of the first aspect or the second aspect. It should be noted that the time domain position only corresponds to the PDSCH, that is, before the predetermined time of the time domain position There is no other downlink transmission corresponding to this time domain position, that is, no downlink transmission feeds back HARQ-ACK information (codebook) at this time domain position. For example, there is no other PDSCH corresponding to this time domain position before the predetermined time of the time domain position. In other words, there is no other PDSCH at this time domain position that needs to send HARQ feedback information (codebook) corresponding to other PDSCHs.
- the terminal device determines that the time domain position only corresponds to the PDSCH according to the C-DAI and/or T-DAI in the DCI, and/or, the terminal device determines the The time domain position only corresponds to the PDSCH.
- the terminal device determines that the time domain position only corresponds to the PDSCH according to the C-DAI and/or T-DAI in the DCI. That is to say, according to the C-DAI and/or T-DAI in the DCI, it is possible to determine the received DCI, or the PDSCH scheduled by each DCI, so as to determine whether there is another corresponding time domain before the predetermined time of the time domain position.
- the downlink transmission of the position e.g PDSCH
- determine whether the time domain position only corresponds to the PDSCH there is no other downlink transmission corresponding to the time domain position before the predetermined time of the time domain position, and it is determined that the time domain position only corresponds to the PDSCH
- the terminal device determines not to send the HARQ feedback codebook at the time domain position corresponding to the PDSCH for sending the HARQ feedback codebook according to the C-DAI and/or T-DAI in the DCI, that is, according to the DCI
- the C-DAI and/or T-DAI in can determine the received DCI, or the PDSCH scheduled by each DCI, thereby determining whether there are other downlink transmissions corresponding to the time domain position before the predetermined time (e.g.
- the above-mentioned DCI may be the DCI for scheduling the received PDSCH, but this embodiment of the present application is not limited by this, and the above-mentioned DCI is also It may be the DCI received within a predetermined time before or within a predetermined time after the DCI that schedules the reception of the PDSCH.
- the terminal device determines according to the C-DAI and/or T-DAI in the DCI that it needs to send the HARQ feedback codebook corresponding to the PDSCH
- the time domain position sends the HARQ feedback codebook (semi-static codebook or dynamic codebook):
- the HARQ process corresponding to the scheduled (one or more) PDSCHs is only received, and the DCI (one or more) is disabled for feedback, but there are missed detections (not received) (for scheduling or not for scheduling PDSCH) DCI (for example, determined according to the C-DAI/T-DAI in the received DCI).
- the information bits of the feedback codebook are all NACK, and the above DCI is the DCI that can only schedule one PDSCH or the DCI that can schedule multiple PDSCHs.
- Figure 15A to Figure 15C take receiving a DCI, and the DCI schedules a PDSCH as an example to illustrate the C-DAI and T-DAI in the above cases 1)-3);
- Figure 31A to Figure 31D receive a DCI, and the DCI Scheduling multiple PDSCHs is taken as an example to illustrate C-DAI and T-DAI in the above cases 1)-3).
- DAI is counted with DCI as the granularity;
- Figure 32A to Figure 32D is based on receiving one DCI, and the DCI scheduling multiple PDSCHs as an example to illustrate the C-DAI and T-DAI of the above cases 1)-3).
- DAI is counted with PDCCH as the granularity
- Figure 31D in the scenarios of Figure 32A to Figure 32D, the terminal device determines according to the C-DAI and/or T-DAI in the DCI that it needs to send the HARQ feedback code at the time domain position corresponding to the PDSCH for sending the HARQ feedback codebook codebook (semi-static codebook or dynamic codebook), but the information bits of the feedback codebook are all NACK.
- the terminal device determines according to the C-DAI and/or T-DAI in the DCI that it does not need Send the HARQ feedback codebook (semi-static codebook or dynamic codebook) at the time domain position corresponding to the PDSCH for sending the HARQ feedback codebook:
- the HARQ process corresponding to the scheduled PDSCH is only received DCI (one or more) that is disabled for feedback, and there is no missed detection (not received) (for scheduling or not for scheduling PDSCH) DCI (for example, according to the received The C-DAI/T-DAI in the DCI is determined).
- the DCI is a DCI that can only schedule one PDSCH or a DCI that can schedule multiple PDSCHs)
- the HARQ process corresponding to the PDSCH scheduled by the DCI is feedback disabled, and the C-DAI of the DCI is the first specific value, e.g.0/1, or the number of PDSCHs scheduled by the DCI, and/or, T-DAI (if included in the DCI) is a second specific value, e.g. 0/1, or the number of PDSCHs scheduled by the DCI. (assuming DAI is based on PDSCH counting).
- Figure 33A to Figure 33B take a DCI received, and the DCI schedules a PDSCH as an example to illustrate the C-DAI and T-DAI in the above cases 4)-6);
- Figure 34A to Figure 34B receive a DCI, and the DCI Scheduling multiple PDSCHs is taken as an example to illustrate C-DAI and T-DAI in the above cases 4)-6).
- DAI is counted with DCI as the granularity
- Figure 35A to Figure 35D is based on receiving one DCI, and the DCI scheduling multiple PDSCHs as an example to illustrate the C-DAI and T-DAI of the above cases 4)-6)
- DAI is counted with PDCCH as the granularity
- Figure 34B in the scenarios of Figure 35A to Figure 35D, the terminal device determines that it is not necessary to send HARQ feedback at the time domain position corresponding to the PDSCH for sending the HARQ feedback codebook according to the C-DAI and/or T-DAI in the DCI Codebook (semi-static codebook or dynamic codebook).
- the terminal device determines that the time domain position only corresponds to the PDSCH according to the SPS configuration and/or activation status. That is to say, the SPS PDSCH can be determined according to the SPS configuration and/or activation state, thereby determining whether there are other downlink transmissions (e.g. SPS PDSCH) corresponding to the time domain position before the predetermined time of the time domain position, and then determining the time domain position Whether the position only corresponds to the PDSCH (there is no other downlink transmission corresponding to the time domain position before the predetermined time of the time domain position, and it is determined that the time domain position only corresponds to the PDSCH).
- the SPS PDSCH can be determined according to the SPS configuration and/or activation state, thereby determining whether there are other downlink transmissions (e.g. SPS PDSCH) corresponding to the time domain position before the predetermined time of the time domain position, and then determining the time domain position Whether the position only corresponds to the PDSCH (there is no other down
- the terminal device determines not to send the HARQ feedback codebook at the time domain position corresponding to the PDSCH for sending the HARQ feedback codebook according to the SPS configuration and/or activation state. That is to say, the SPS PDSCH can be determined according to the SPS configuration and/or activation state, thereby determining whether there are other downlink transmissions (e.g.
- the time domain position for sending the HARQ feedback codebook is used to send the HARQ feedback codebook.
- the time domain position (for example, time slot n+k) corresponding to the PDSCH for sending the HARQ feedback information may be located according to the last PDSCH corresponding to the HARQ feedback-enabled HARQ process scheduled by the DCI scheduling the PDSCH.
- the HARQ feedback codebook may only be for the HARQ feedback information of the received PDSCH.
- the PDSCH received in 1401 is the PDSCH among the PDSCHs scheduled by the DCI, and the second DCI
- the HARQ processes corresponding to all the scheduled second PDSCHs are disabled for feedback.
- the terminal device when it receives one or more or all of the PDSCHs in the second PDSCH (hereinafter collectively referred to as the received PDSCH), it can be skipped Generation of a feedback codebook (such as a semi-static codebook) (the feedback codebook is not generated), that is, the HARQ feedback information is not sent at the time domain position corresponding to the received PDSCH for sending the HARQ feedback information (or the codebook ).
- a feedback codebook such as a semi-static codebook
- the feedback codebook is not generated
- the HARQ feedback information is not sent at the time domain position corresponding to the received PDSCH for sending the HARQ feedback information (or the codebook ).
- At least two PDSCHs and SPS PDSCHs scheduled by the second DCI correspond to the same time domain position for sending HARQ feedback information.
- the terminal equipment when the terminal equipment is configured or activated SPS PDSCH, and the PDSCH received in 1401 is SPS PDSCH, the terminal equipment can skip the generation of feedback codebook (such as semi-static codebook) (do not generate the feedback codebook) , That is to say, the HARQ feedback information (or codebook) for the SPS PDSCH is not sent at the time domain position corresponding to the received SPS PDSCH for sending the HARQ feedback information.
- feedback codebook such as semi-static codebook
- the PDSCH received in 1401 includes the DCI-scheduled PDSCH and the SPS PDSCH, and the terminal device can jump Over the generation of a feedback codebook (such as a semi-static codebook) (the feedback codebook is not generated), that is, the time domain position for sending HARQ feedback information corresponding to the received DCI-scheduled PDSCH and SPS PDSCH is not sent for The HARQ feedback information (or codebook) of the SPS PDSCH.
- a feedback codebook such as a semi-static codebook
- the PDSCH scheduled by the DCI and the SPS PDSCH correspond to the same time domain position for sending the HARQ feedback information.
- the difference from the embodiment of the second aspect is that when the terminal device only receives at least one fourth DCI described in the second aspect, the PDSCH received in 1401 is a PDSCH among the PDSCHs scheduled by the fourth DCI, The HARQ processes corresponding to all the second PDSCHs scheduled by the fourth DCI are disabled for feedback, after that, when the terminal device receives one or more or all of the PDSCHs in the second PDSCH (hereinafter collectively referred to as the received PDSCH) , the C-DAI and/or T-DAI in the fourth DCI can be ignored.
- the HARQ feedback codebook may not be sent at the time domain position corresponding to the PDSCH for sending the HARQ feedback codebook.
- this HARQ mechanism no HARQ feedback information is sent; therefore, the uplink control signaling overhead can be reduced, and at the same time, the network device can send new data without waiting for the terminal device to report the HARQ feedback information, thereby reducing the data transmission delay.
- the embodiment of the present application provides an information feedback method, which is described from the side of the terminal device, and the overlapping part with the embodiment of the second aspect or the third aspect will not be repeated.
- Fig. 16 is a schematic diagram of an information receiving method according to an embodiment of the present application. As shown in Fig. 16, the method includes:
- the terminal device receives DCI for scheduling PDSCH;
- the terminal device determines, according to the time domain position of the last PDSCH of the DCI scheduling corresponding to the HARQ feedback-enabled HARQ process, the time domain position for sending the HARQ feedback information of the DCI scheduled PDSCH;
- the terminal device sends HARQ feedback information for the PDSCH at the determined time domain position.
- the terminal device determines the time domain position for sending the HARQ feedback information according to the time domain position of the last PDSCH scheduled by the DCI corresponding to the HARQ feedback enabled HARQ process.
- the terminal device determines the time-domain position for sending the HARQ feedback information of the DCI-scheduled PDSCH according to the time-domain position of the last PDSCH corresponding to the HARQ feedback-enabled HARQ process of the DCI scheduling and the HARQ feedback timing
- the HARQ feedback timing k indicates the time domain offset between the time domain position of the last PDSCH of the DCI scheduling corresponding to the HARQ feedback enabled HARQ process and the time domain position of the HARQ feedback information of the DCI scheduled PDSCH .
- the time domain location can be a slot and/or a symbol
- the DCI includes a first information field, and the first information field is used to indicate the HARQ feedback timing, or, the method further includes: (not shown)
- the terminal device receives high-layer signaling, where the high-layer signaling is used to indicate the HARQ feedback timing k.
- the bearer mode of k reference may be made to the prior art, which will not be repeated here.
- the time domain of the HARQ-ACK feedback of the multiple DCIs (or the PDSCHs scheduled by the multiple DCIs)
- the positions (eg slot n+k) are the same.
- the above method may only be applicable to the feedback of the dynamic codebook to determine the time domain position of the HARQ feedback information, but not to the feedback of the semi-static codebook to determine the time domain position of the HARQ feedback information, but this embodiment of the application does not as a restriction.
- the feedback delay can be further reduced.
- the embodiment of the present application provides an information receiving method, which is explained from the side of the network device, and the overlapping parts with the embodiment of the first aspect or the second aspect will not be repeated.
- Fig. 17 is a schematic diagram of an information receiving method according to an embodiment of the present application. As shown in Fig. 17, the method includes:
- the network device sends at least one downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH) to the terminal device, and the DCI schedules one or more PDSCHs, wherein the one or more PDSCHs include at least A corresponding HARQ process is a feedback-enabled or feedback-disabled PDSCH;
- DCI downlink control information
- the network device receives HARQ feedback information for one or more PDSCHSs sent by the terminal device.
- Fig. 18 is a schematic diagram of an information receiving method according to an embodiment of the present application. As shown in Fig. 18, the method includes:
- the network device sends a fourth DCI to the terminal device, where the fourth DCI includes accumulated DAI information and/or total DAI information;
- the network device receives the HARQ feedback information sent by the terminal device and determined according to the accumulated DAI information and/or the total DAI information.
- accumulated DAI information and/or total DAI information, HARQ feedback information, and fourth DCI reference may be made to the foregoing embodiments and the corresponding embodiments of the seventh aspect, and details are not repeated here.
- An embodiment of the present application provides an information feedback device.
- the apparatus may be, for example, a terminal device, or may be one or some components or components configured on the terminal device, and the same contents as those in the embodiments of the first to fourth aspects will not be repeated here.
- Fig. 19 is another schematic diagram of an information feedback device according to an embodiment of the present application. As shown in Fig. 19, the information feedback device 1900 includes:
- the first receiving unit 1901 is configured to receive at least one downlink control information (DCI) for scheduling a Physical Downlink Shared Channel (PDSCH), and the DCI schedules one or more PDSCHs, wherein the one or more PDSCHs include at least A corresponding HARQ process is a feedback-enabled or feedback-disabled PDSCH;
- DCI downlink control information
- PDSCH Physical Downlink Shared Channel
- a first sending unit 1902 which sends HARQ feedback information for one or more PDSCHSs.
- the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH, or the The HARQ feedback information corresponding to the second PDSCH is related to the decoding result of the second PDSCH.
- the HARQ feedback information corresponding to the second PDSCH is irrelevant to the decoding result of the second PDSCH, including that the HARQ feedback information corresponding to the second PDSCH is NACK.
- the HARQ feedback information corresponding to the first PDSCH is related to the decoding result of the first PDSCH.
- the SPS PDSCH corresponds to the second PDSCH
- the determination methods of the HARQ feedback information are the same or different.
- the method for determining the HARQ feedback information corresponding to the SPS PDSCH and the second PDSCH is the same, including: the HARQ feedback information corresponding to the SPS PDSCH is not related to the decoding result of the SPS PDSCH, and the second The HARQ feedback information corresponding to the PDSCH has nothing to do with the decoding result of the second PDSCH, or the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH, and the HARQ feedback information corresponding to the second PDSCH is related to the related to the decoding result of the second PDSCH.
- the HARQ feedback information corresponding to the SPS PDSCH and the second PDSCH are determined in different ways, including: the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH, and the second The HARQ feedback information corresponding to the PDSCH has nothing to do with the decoding result of the second PDSCH, or the HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH, and the HARQ feedback information corresponding to the second PDSCH is related to the related to the decoding result of the second PDSCH.
- the terminal device sends the HARQ feedback information at a time domain position corresponding to the one or more PDSCHs for sending the HARQ feedback information.
- the feedback time domain positions of the HARQ feedback information corresponding to at least two DCI-scheduled PDSCHs are the same, or the feedback time domains of at least one DCI-scheduled PDSCH and the HARQ feedback information corresponding to the SPS PDSCH same location.
- the first PDSCH and/or the second PDSCH are actually sent PDSCHs, and/or the first PDSCH and/or the second PDSCH have a corresponding HARQ process.
- the at least one DCI includes a first DCI and/or a second DCI and/or a third DCI
- the first DCI schedules a plurality of PDSCHs
- the plurality of PDSCHs includes at least one corresponding HARQ process It is the first PDSCH with feedback enabled and at least one corresponding HARQ process is the second PDSCH with feedback disabled
- the second DCI schedules multiple second PDSCHs, and the multiple second PDSCHs all correspond to the HARQ process with HARQ feedback disabled
- the second DCI schedules a second PDSCH
- the second PDSCH corresponds to a HARQ process whose HARQ feedback is disabled
- the third DCI schedules multiple first PDSCHs, and the multiple first PDSCHs all correspond to HARQ
- the feedback-enabled HARQ process, or the third DCI schedules a first PDSCH, and the first PDSCH corresponds to the HARQ feedback-enabled HARQ process.
- the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH, and the first The HARQ feedback information of the PDSCH is related to the decoding result of the first PDSCH; or, the HARQ feedback information of the first PDSCH is related to the decoding result of the first PDSCH, and the HARQ feedback information of the second PDSCH is related to the The decoding result of the second PDSCH is correlated.
- the HARQ feedback information corresponding to the PDSCH scheduled by the third DCI and the decoding result of the PDSCH scheduled by the third DCI relevant when the first receiving unit only receives at least one of the third DCI, the HARQ feedback information corresponding to the PDSCH scheduled by the third DCI and the decoding result of the PDSCH scheduled by the third DCI relevant.
- the second The HARQ feedback information corresponding to the PDSCH has nothing to do with the decoding result of the second PDSCH, and the HARQ feedback information corresponding to the first PDSCH is related to the decoding result of the first PDSCH; or, the HARQ feedback information corresponding to the first PDSCH
- the HARQ feedback information corresponding to the second PDSCH is related to the decoding result of the first PDSCH, and is related to the decoding result of the second PDSCH.
- the terminal device is configured or activated with SPS, and the HARQ-ACK process corresponding to the PDSCH (SPS PDSCH) of the SPS is HARQ feedback disabled, and the first receiving unit only receives at least When one of the first DCI or at least one of the third DCI is received, or, when the terminal device is configured or activated with SPS, and the HARQ-ACK process corresponding to the SPS PDSCH is HARQ feedback disabled, and When the first receiving unit receives at least one of the first DCI and/or receives at least one of the second DCI, and also receives at least one of the third DCI,
- the HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH
- the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH
- the HARQ feedback information of the first PDSCH is related to The decoding result of the first PDSCH is related; or, the HARQ feedback information of the first PDSCH is related to the decoding result of the first PDSCH, and the HARQ feedback information of the second PDSCH is related to the decoding result of the second PDSCH Correlation, the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH; or,
- the HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH, the HARQ feedback information of the first PDSCH is related to the decoding result of the first PDSCH, and the HARQ feedback information of the second PDSCH is related to the decoding result of the SPS PDSCH. related to the decoding result of the second PDSCH; or,
- the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH
- the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH
- the HARQ feedback information of the first PDSCH is related to The decoding results of the first PDSCH are related.
- the terminal device is configured or activated with SPS, and the HARQ-ACK process corresponding to the PDSCH (SPS PDSCH) of the SPS is HARQ feedback disabled, and the first receiving unit only receives at least one of the second DCI,
- the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH, and the HARQ feedback information corresponding to the PDSCH scheduled by the second DCI is related to the decoding result of the PDSCH scheduled by the second DCI; or, the The HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH, and the HARQ feedback information corresponding to the PDSCH scheduled by the second DCI has nothing to do with the decoding result of the second PDSCH.
- the terminal device is configured or activated with SPS
- the HARQ-ACK process corresponding to the PDSCH (SPS PDSCH) of the SPS is HARQ feedback enabled
- the first receiving unit only receives When at least one of the first DCI or only at least one of the second DCI or at least one of the third DCI is received, or, when the terminal device is configured or activated with SPS, and the SPS PDSCH
- the corresponding HARQ-ACK process is HARQ feedback enabled
- the first receiving unit receives at least one of the first DCI and/or receives at least one of the second DCI, and also receives at least one of the third DCI ,
- the HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH
- the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH
- the HARQ feedback information of the first PDSCH is related to the The decoding result of the first PDSCH is related; or, the HARQ feedback information of the first PDSCH is related to the decoding result of the first PDSCH, and the HARQ feedback information of the second PDSCH is related to the decoding result of the second PDSCH , the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH.
- the first receiving unit when the first receiving unit does not receive other DCI corresponding to the time domain position within a predetermined period of time before the time domain position corresponding to the HARQ feedback timing corresponding to the DCI, it indicates that the The terminal device only receives the DCI.
- FIG. 20 is another schematic diagram of an information feedback device according to an embodiment of the present application. As shown in FIG. 20 , the information feedback device 1900 includes:
- the second receiving unit 2001 receives fourth downlink control information (DCI), where the fourth DCI includes accumulated DAI information and/or total DAI information;
- DCI downlink control information
- the first determining unit 2002 is configured to determine HARQ feedback information according to the accumulated DAI information and/or total DAI information.
- the accumulated DAI information and/or the total DAI information are counted at the granularity of DCI and/or counted at the granularity of PDSCH for the DCI used to schedule the PDSCH
- the accumulated DAI information and/or the total DAI information for the DCI used to schedule the PDSCH only includes the DCI of the PDSCH whose corresponding HARQ process is feedback-enabled in the scheduled PDSCH.
- the accumulated DAI information and/or the total DAI information do not include only the DCI of the PDSCH whose corresponding HARQ process is feedback-disabled in the scheduled PDSCH.
- the PDSCH scheduled by the fourth DCI includes the fourth PDSCH whose corresponding HARQ process is feedback-enabled and the corresponding HARQ process is the second PDSCH whose feedback is disabled, and the accumulated DAI information/or the The total DAI information counts the fourth DCI.
- the HARQ process corresponding to the PDSCH scheduled by the fourth DCI is feedback-enabled HARQ feedback information corresponding to the fourth PDSCH is related to the decoding result of the fourth PDSCH, and the PDSCH scheduled by the fourth DCI
- the HARQ process corresponding to the feedback-disabled second PDSCH corresponding to the HARQ feedback information has nothing to do with or is related to the decoding result of the second PDSCH.
- the HARQ process corresponding to the PDSCH scheduled by the fourth DCI is feedback-disabled.
- the HARQ feedback information corresponding to the second PDSCH is irrelevant to the decoding result of the second PDSCH, including the PDSCH scheduled by the fourth DCI.
- the HARQ process corresponding to which feedback is disabled and the HARQ feedback information corresponding to the second PDSCH is NACK.
- the accumulated DAI information and/or the total DAI information only count the PDSCHs whose HARQ process is feedback-enabled for the DCI-scheduled PDSCHs.
- the accumulated DAI information and/or the total DAI information do not count the PDSCH whose corresponding HARQ process is disabled for feedback.
- the HARQ process corresponding to the PDSCH scheduled by the fourth DCI is feedback enabled, and the HARQ feedback information corresponding to the first PDSCH is related to the decoding result of the first PDSCH.
- the device also includes:
- a second sending unit (not shown), configured to send the HARQ feedback information at the time domain position corresponding to the PDSCH for sending the HARQ feedback information.
- the device also includes:
- the second determination unit (not shown) is configured to determine the time domain position for sending the HARQ feedback information according to the time domain position of the last PDSCH of the DCI scheduling corresponding to the HARQ feedback enabled HARQ process.
- the second determination unit determines the time domain for sending the HARQ feedback information according to the time domain position of the PDSCH corresponding to the HARQ feedback enabled HARQ process of the DCI scheduling and the HARQ feedback timing Location.
- the HARQ feedback timing indicates the time domain offset between the time domain position of the last PDSCH corresponding to the HARQ feedback enabled HARQ process of the DCI scheduling and the time domain position where the HARQ feedback information is sent. shift.
- the fourth DCI includes a first information field, and the first information field is used to indicate the HARQ feedback timing, or, the apparatus further includes:
- a third receiving unit (not shown), which receives high-layer signaling, where the high-layer signaling is used to indicate the HARQ feedback timing.
- the fourth DCI is used for scheduling PDSCH and/or PUSCH.
- the fourth DCI is used to schedule a PDSCH
- the PDSCH scheduled by the DCI includes a PDSCH whose corresponding HARQ process is feedback-enabled or feedback-disabled.
- the fourth DCI does not schedule data transmission.
- the fourth DCI schedules one or more PDSCHs, and the PDSCH time domain resource allocation table applied by the fourth DCI supports scheduling multiple PDSCHs through one DCI.
- FIG. 21 is another schematic diagram of an information feedback device according to an embodiment of the present application. As shown in FIG. 21 , the information feedback device 2100 includes:
- a fourth receiving unit 2101 which receives DCI for scheduling PDSCH;
- the third determining unit 2102 is configured to determine the time domain position for sending the HARQ feedback information of the DCI scheduled PDSCH according to the time domain position of the last PDSCH corresponding to the HARQ feedback enabled HARQ process of the DCI scheduling;
- the second sending unit 2103 is configured to send the HARQ feedback information of the PDSCH scheduled by the DCI at the determined time domain position.
- the third determining unit determines the HARQ used to send the DCI-scheduled PDSCH according to the time-domain position of the PDSCH corresponding to the HARQ feedback-enabled HARQ process and the HARQ feedback timing of the last DCI-scheduled The temporal location of the feedback information.
- the HARQ feedback timing indicates the difference between the time domain position of the last PDSCH of the DCI scheduling corresponding to the HARQ feedback enabled HARQ process and the time domain position of the HARQ feedback information of the DCI scheduled PDSCH The time domain offset between.
- the DCI includes a first information field, and the first information field is used to indicate the HARQ feedback timing, or, the apparatus further includes:
- a fifth receiving unit (not shown), which receives high-layer signaling, where the high-layer signaling is used to indicate the HARQ feedback timing.
- Fig. 22 is another schematic diagram of an information feedback device according to an embodiment of the present application. As shown in Fig. 22, the information feedback device 2200 includes:
- the sixth receiving unit 2201 which receives a PDSCH, the HARQ process corresponding to the PDSCH is disabled for feedback;
- the processing unit 2202 does not send the HARQ feedback codebook at the time domain position corresponding to the PDSCH for sending the HARQ feedback codebook.
- the time domain location only corresponds to the PDSCH.
- the time domain position only corresponding to the PDSCH includes: there is no other downlink transmission corresponding to the time domain position before the predetermined time of the time domain position.
- the processing unit determines that the time domain position only corresponds to the PDSCH according to the C-DAI and/or T-DAI in the DCI, and/or determines the The time domain location only corresponds to the PDSCH.
- the processing unit determines not to send the HARQ feedback codebook at the time domain position corresponding to the PDSCH for sending the HARQ feedback codebook according to the C-DAI and/or T-DAI in the DCI, and/or and determining not to send the HARQ feedback codebook at the time domain position corresponding to the PDSCH for sending the HARQ feedback codebook according to the SPS configuration and/or the activation state.
- the processing unit does not generate the HARQ feedback codebook corresponding to the PDSCH.
- the PDSCH includes DCI-scheduled PDSCH and/or SPS PDSCH.
- multiple PDSCHs in the PDSCHs are scheduled by the same DCI.
- the information feedback devices 1900-2200 may also include other components or modules, and for the specific content of these components or modules, reference may be made to related technologies.
- Figs. 19-22 only exemplarily show the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection may be used.
- the above-mentioned components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of the present application is not limited thereto.
- the HARQ feedback information can be sent or not sent when the HARQ mechanism of HARQ feedback enabling/disabling is supported; therefore, the uplink control signaling overhead can be reduced, and at the same time, the network device does not need to wait for the terminal device to report the HARQ feedback information.
- Feedback information can send new data, which can reduce data transmission delay.
- An embodiment of the present application provides an information receiving device.
- the apparatus may be, for example, a network device, or may be one or some components or components configured on the network device, and the content that is the same as that in the embodiment of the fifth aspect will not be repeated here.
- Fig. 23 is another schematic diagram of an information receiving device according to an embodiment of the present application. As shown in Fig. 23, the information receiving device 2300 includes:
- the third sending unit 2301 which sends at least one downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH) to the terminal device, and the DCI schedules one or more PDSCHs, wherein the one or more PDSCHs Including at least one corresponding HARQ process is feedback-enabled or feedback-disabled PDSCH;
- DCI downlink control information
- a seventh receiving unit 2302 configured to receive HARQ feedback information for one or more PDSCHSs sent by the terminal device.
- the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH, or the The HARQ feedback information corresponding to the second PDSCH is related to the decoding result of the second PDSCH.
- the HARQ feedback information corresponding to the second PDSCH is irrelevant to the decoding result of the second PDSCH, including that the HARQ feedback information corresponding to the second PDSCH is NACK.
- the HARQ feedback information corresponding to the first PDSCH is related to the decoding result of the first PDSCH.
- the SPS PDSCH corresponds to the second PDSCH
- the determination methods of the HARQ feedback information are the same or different.
- the method for determining the HARQ feedback information corresponding to the SPS PDSCH and the second PDSCH is the same, including: the HARQ feedback information corresponding to the SPS PDSCH is not related to the decoding result of the SPS PDSCH, and the second The HARQ feedback information corresponding to the PDSCH has nothing to do with the decoding result of the second PDSCH, or the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH, and the HARQ feedback information corresponding to the second PDSCH is related to the related to the decoding result of the second PDSCH.
- the HARQ feedback information corresponding to the SPS PDSCH and the second PDSCH are determined in different ways, including: the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH, and the second The HARQ feedback information corresponding to the PDSCH has nothing to do with the decoding result of the second PDSCH, or the HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH, and the HARQ feedback information corresponding to the second PDSCH is related to the related to the decoding result of the second PDSCH.
- the seventh receiving unit receives the HARQ feedback information at a time domain position corresponding to the one or more PDSCHs for sending the HARQ feedback information.
- the feedback time domain positions of the HARQ feedback information corresponding to at least two DCI-scheduled PDSCHs are the same, or the feedback time domains of at least one DCI-scheduled PDSCH and the HARQ feedback information corresponding to the SPS PDSCH same location.
- the first PDSCH and/or the second PDSCH are actually sent PDSCHs, and/or the first PDSCH and/or the second PDSCH have a corresponding HARQ process.
- Fig. 24 is another schematic diagram of an information receiving device according to an embodiment of the present application. As shown in Fig. 24, the information receiving device 2400 includes:
- a fourth sending unit 2401 which sends a fourth DCI to the terminal device, where the fourth DCI includes accumulated DAI information and/or total DAI information;
- An eighth receiving unit 2402 configured to receive HARQ feedback information sent by the terminal device and determined according to the accumulated DAI information and/or total DAI information.
- the accumulated DAI information and/or the total DAI information are counted at the granularity of DCI and/or counted at the granularity of PDSCH for the DCI used to schedule the PDSCH
- the accumulated DAI information and/or the total DAI information for the DCI used to schedule the PDSCH only includes the DCI of the PDSCH whose corresponding HARQ process is feedback-enabled in the scheduled PDSCH.
- the accumulated DAI information and/or the total DAI information do not include only the DCI of the PDSCH whose corresponding HARQ process is feedback-disabled in the scheduled PDSCH.
- the PDSCH scheduled by the fourth DCI includes the fourth PDSCH whose corresponding HARQ process is feedback-enabled and the corresponding HARQ process is the second PDSCH whose feedback is disabled, and the accumulated DAI information/or the The total DAI information counts the fourth DCI.
- the HARQ process corresponding to the PDSCH scheduled by the fourth DCI is feedback-enabled HARQ feedback information corresponding to the fourth PDSCH is related to the decoding result of the fourth PDSCH, and the PDSCH scheduled by the fourth DCI
- the HARQ process corresponding to the feedback-disabled second PDSCH corresponding to the HARQ feedback information has nothing to do with or is related to the decoding result of the second PDSCH.
- the HARQ process corresponding to the PDSCH scheduled by the fourth DCI is feedback-disabled.
- the HARQ feedback information corresponding to the second PDSCH is irrelevant to the decoding result of the second PDSCH, including the PDSCH scheduled by the fourth DCI.
- the HARQ process corresponding to which feedback is disabled and the HARQ feedback information corresponding to the second PDSCH is NACK.
- the accumulated DAI information and/or the total DAI information only count the PDSCHs whose HARQ process is feedback-enabled for the DCI-scheduled PDSCHs.
- the accumulated DAI information and/or the total DAI information do not count the PDSCH whose corresponding HARQ process is disabled for feedback.
- the HARQ process corresponding to the PDSCH scheduled by the fourth DCI is feedback enabled, and the HARQ feedback information corresponding to the first PDSCH is related to the decoding result of the first PDSCH.
- the eighth receiving unit receives the HARQ feedback information at a time domain position corresponding to the PDSCH for sending the HARQ feedback information.
- the time domain position for sending the HARQ feedback information is determined according to the time domain position of the last PDSCH of the DCI scheduling corresponding to the HARQ process with HARQ feedback enabled.
- the time domain position for sending the HARQ feedback information is determined according to the time domain position of the last PDSCH of the DCI scheduling corresponding to the HARQ feedback-enabled HARQ process and the HARQ feedback timing.
- the HARQ feedback timing indicates the time domain offset between the time domain position of the last PDSCH corresponding to the HARQ feedback enabled HARQ process of the DCI scheduling and the time domain position where the HARQ feedback information is sent. shift.
- the fourth DCI includes a first information field, and the first information field is used to indicate the HARQ feedback timing, or, the apparatus further includes:
- a fifth sending unit (not shown), configured to send high-layer signaling to the terminal device, where the high-layer signaling is used to indicate the HARQ feedback timing.
- the fourth DCI is used for scheduling PDSCH and/or PUSCH.
- the fourth DCI is used to schedule a PDSCH
- the PDSCH scheduled by the DCI includes a PDSCH whose corresponding HARQ process is feedback-enabled or feedback-disabled.
- the fourth DCI does not schedule data transmission.
- the fourth DCI schedules one or more PDSCHs, and the PDSCH time domain resource allocation table applied by the fourth DCI supports scheduling multiple PDSCHs through one DCI.
- Fig. 25 is another schematic diagram of an information receiving device according to an embodiment of the present application. As shown in Fig. 25, the information receiving device 2500 includes:
- the sixth sending unit 2501 which sends DCI for scheduling PDSCH;
- the seventh sending unit 2502 is configured to receive the HARQ feedback information of the DCI-scheduled PDSCH sent by the terminal device at the time-domain position used for sending the HARQ feedback information of the DCI-scheduled PDSCH, the time-domain position is based on the The time domain position of the last PDSCH corresponding to the HARQ feedback-enabled HARQ process of the DCI scheduling is determined.
- the time domain position is determined according to the time domain position of the last PDSCH of the DCI scheduling corresponding to the HARQ feedback-enabled HARQ process and the HARQ feedback timing.
- the HARQ feedback timing indicates the difference between the time domain position of the last PDSCH of the DCI scheduling corresponding to the HARQ feedback enabled HARQ process and the time domain position of the HARQ feedback information of the DCI scheduled PDSCH The time domain offset between.
- the DCI includes a first information field, and the first information field is used to indicate the HARQ feedback timing, or, the apparatus further includes:
- An eighth sending unit (not shown), which sends high-layer signaling, where the high-layer signaling is used to indicate the HARQ feedback timing
- the information receiving apparatuses 2300-2500 may also include other components or modules, and for the specific content of these components or modules, reference may be made to related technologies.
- Fig. 23-25 only exemplarily shows the connection relationship or signal direction among the various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection may be used.
- the above-mentioned components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of the present application is not limited thereto.
- the HARQ feedback information can be sent or not sent when the HARQ mechanism of HARQ feedback enabling/disabling is supported; therefore, the uplink control signaling overhead can be reduced, and at the same time, the network device does not need to wait for the terminal device to report the HARQ feedback information.
- Feedback information can send new data, which can reduce data transmission delay.
- the embodiment of the present application also provides a communication system, which can be referred to FIG. 1 , and the same content as the embodiments of the first aspect to the fourth aspect will not be described again.
- the communication system 100 may at least include: a terminal device 102 and a network device 101 .
- the embodiment of the present application also provides a network device, which may be, for example, a base station, but the present application is not limited thereto, and may also be other network devices.
- a network device which may be, for example, a base station, but the present application is not limited thereto, and may also be other network devices.
- FIG. 27 is a schematic diagram of a network device according to an embodiment of the present application.
- a network device 2700 may include: a processor 2710 (such as a central processing unit CPU) and a memory 2720 ; the memory 2720 is coupled to the processor 2710 .
- the memory 2720 can store various data; in addition, it also stores a program 2730 for information processing, and executes the program 2730 under the control of the processor 2710 .
- the processor 2710 may be configured to execute a program to implement the information receiving method described in the embodiment of the fifth aspect.
- the network device 2700 may further include: a transceiver 2740 and an antenna 2750 ; wherein, the functions of the above components are similar to those of the prior art, and will not be repeated here. It should be noted that the network device 2700 does not necessarily include all the components shown in FIG. 27 ; in addition, the network device 2700 may also include components not shown in FIG. 10 , and reference may be made to the prior art.
- the embodiment of the present application also provides a terminal device, but the present application is not limited thereto, and may be other devices.
- FIG. 26 is a schematic diagram of a terminal device according to an embodiment of the present application.
- the terminal device 2600 may include a processor 2610 and a memory 2620 ; the memory 2620 stores data and programs, and is coupled to the processor 2610 . It is worth noting that this figure is exemplary; other types of structures may also be used in addition to or instead of this structure to implement telecommunication functions or other functions.
- the processor 2610 may be configured to execute a program to implement the information feedback method described in the embodiment of the first or second or third or fourth aspect.
- the terminal device 2600 may further include: a communication module 2630 , an input unit 2640 , a display device 2650 , and a power supply 2660 .
- a communication module 2630 the terminal device 2600 may further include: a communication module 2630 , an input unit 2640 , a display device 2650 , and a power supply 2660 .
- the functions of the above components are similar to those of the prior art, and will not be repeated here. It should be noted that the terminal device 2600 does not necessarily include all the components shown in FIG. have technology.
- the embodiment of the present application also provides a computer program, wherein when the program is executed in the terminal device, the program causes the terminal device to execute the program described in the embodiment of the first or second or third or fourth aspect. information feedback method.
- the embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables the terminal device to execute the information feedback method described in the embodiment of the first or second or third or fourth aspect.
- An embodiment of the present application further provides a computer program, wherein when the program is executed in a network device, the program causes the network device to execute the information receiving method described in the embodiment of the fifth aspect.
- An embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program causes a network device to execute the information receiving method described in the embodiment of the fifth aspect.
- the above devices and methods in this application can be implemented by hardware, or by combining hardware and software.
- the present application relates to a computer-readable program that, when executed by a logic component, enables the logic component to realize the above-mentioned device or constituent component, or enables the logic component to realize the above-mentioned various methods or steps.
- the present application also relates to storage media for storing the above programs, such as hard disks, magnetic disks, optical disks, DVDs, flash memories, and the like.
- the method/device described in conjunction with the embodiments of the present application may be directly embodied as hardware, a software module executed by a processor, or a combination of both.
- one or more of the functional block diagrams shown in the figure and/or one or more combinations of the functional block diagrams may correspond to each software module or each hardware module of the computer program flow.
- These software modules may respectively correspond to the steps shown in the figure.
- These hardware modules for example, can be realized by solidifying these software modules by using a Field Programmable Gate Array (FPGA).
- FPGA Field Programmable Gate Array
- a software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or any other form of storage medium known in the art.
- a storage medium can be coupled to the processor such that the processor can read information from, and write information to, the storage medium, or it can be an integral part of the processor.
- the processor and storage medium can be located in the ASIC.
- the software module can be stored in the memory of the mobile terminal, or can be stored in a memory card that can be inserted into the mobile terminal.
- the software module can be stored in the MEGA-SIM card or large-capacity flash memory device.
- One or more of the functional blocks described in the accompanying drawings and/or one or more combinations of the functional blocks can be implemented as a general-purpose processor, a digital signal processor (DSP) for performing the functions described in this application ), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof.
- DSP digital signal processor
- ASICs application specific integrated circuits
- FPGAs field programmable gate arrays
- One or more of the functional blocks described in the drawings and/or one or more combinations of the functional blocks can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors processor, one or more microprocessors in communication with a DSP, or any other such configuration.
- An information feedback method applied to a terminal device comprising:
- the terminal device receives at least one downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH), and the DCI schedules one or more PDSCHs, wherein the one or more PDSCHs include at least one corresponding
- DCI downlink control information
- the HARQ process is a feedback-enabled or feedback-disabled PDSCH;
- the terminal device sends HARQ feedback information for one or more PDSCHSs.
- the HARQ feedback information corresponding to the second PDSCH is the same as that of the second PDSCH
- the decoding result of the second PDSCH is irrelevant, or the HARQ feedback information corresponding to the second PDSCH is related to the decoding result of the second PDSCH.
- the HARQ feedback information corresponding to the SPS PDSCH and the second PDSCH are determined in the same manner, including: the HARQ feedback information corresponding to the SPS PDSCH and the decoding result of the SPS PDSCH irrelevant, and the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH, or the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH, and the second PDSCH The corresponding HARQ feedback information is related to the decoding result of the second PDSCH.
- the HARQ feedback information corresponding to the SPS PDSCH and the second PDSCH are determined in different ways, including: the HARQ feedback information corresponding to the SPS PDSCH and the decoding result of the SPS PDSCH Correlation, and the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH, or the HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH, and the second PDSCH
- the corresponding HARQ feedback information is related to the decoding result of the second PDSCH.
- the at least one DCI includes a first DCI and/or a second DCI and/or a third DCI
- the first DCI schedules multiple PDSCHs
- the plurality of PDSCHs includes at least one first PDSCH whose corresponding HARQ process is feedback-enabled and at least one second PDSCH whose corresponding HARQ process is feedback-disabled
- the second DCI schedules a plurality of second PDSCHs, and the plurality of Each of the second PDSCHs corresponds to a HARQ process with HARQ feedback disabled, or the second DCI schedules a second PDSCH, and the second PDSCH corresponds to a HARQ process with HARQ feedback disabled
- the third DCI schedules multiple first PDSCHs , and the multiple first PDSCHs all correspond to a HARQ process enabled with HARQ feedback, or the third DCI schedules one first PDSCH, and the one first PDSCH corresponds to
- the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH, and the first The HARQ feedback information of a PDSCH is related to the decoding result of the first PDSCH; or, the HARQ feedback information of the first PDSCH is related to the decoding result of the first PDSCH, and the HARQ feedback information of the second PDSCH is related to the decoding result of the first PDSCH. related to the decoding result of the second PDSCH.
- the first The HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH, and the HARQ feedback information corresponding to the first PDSCH is related to the decoding result of the first PDSCH; or, the HARQ feedback corresponding to the first PDSCH The information is related to the decoding result of the first PDSCH, and the HARQ feedback information corresponding to the second PDSCH is related to the decoding result of the second PDSCH.
- the HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH
- the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH
- the HARQ feedback information of the first PDSCH is related to The decoding result of the first PDSCH is related; or, the HARQ feedback information of the first PDSCH is related to the decoding result of the first PDSCH, and the HARQ feedback information of the second PDSCH is related to the decoding result of the second PDSCH Correlation, the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH; or,
- the HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH, the HARQ feedback information of the first PDSCH is related to the decoding result of the first PDSCH, and the HARQ feedback information of the second PDSCH is related to the decoding result of the SPS PDSCH. related to the decoding result of the second PDSCH; or,
- the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH
- the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH
- the HARQ feedback information of the first PDSCH is related to The decoding results of the first PDSCH are related.
- the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH, and the HARQ feedback information corresponding to the PDSCH scheduled by the second DCI is related to the decoding result of the PDSCH scheduled by the second DCI; or, the The HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH, and the HARQ feedback information corresponding to the PDSCH scheduled by the second DCI has nothing to do with the decoding result of the second PDSCH.
- the terminal device is configured or activated with SPS
- the HARQ-ACK process corresponding to the PDSCH (SPS PDSCH) of the SPS is HARQ feedback enabled, and only receives
- the terminal device is configured or activated with SPS
- the HARQ-ACK process corresponding to the PDSCH is HARQ feedback enabled, and at least one of the first DCI and/or at least one of the second DCI is received, and at least one of the third DCI is also received
- the HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH
- the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH
- the HARQ feedback information of the first PDSCH is related to the The decoding result of the first PDSCH is related; or, the HARQ feedback information of the first PDSCH is related to the decoding result of the first PDSCH, and the HARQ feedback information of the second PDSCH is related to the decoding result of the second PDSCH , the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH.
- An information feedback method applied to a terminal device wherein the method comprises:
- DCI Downlink control information
- the terminal device determines HARQ feedback information according to the accumulated DAI information and/or total DAI information.
- the PDSCH scheduled by the fourth DCI includes a fourth PDSCH whose corresponding HARQ process is feedback-enabled and a corresponding HARQ process whose feedback is disabled.
- the accumulated DAI information/or the total DAI information counts the fourth DCI.
- the HARQ feedback information corresponding to the second PDSCH is irrelevant to the decoding result of the second PDSCH, including the The HARQ process corresponding to the PDSCH scheduled by the fourth DCI is feedback-disabled, and the HARQ feedback information corresponding to the second PDSCH is NACK.
- the HARQ process corresponding to the PDSCH scheduled by the fourth DCI is feedback enabled, and the HARQ feedback information corresponding to the first PDSCH is related to the decoding result of the first PDSCH.
- the terminal device sends the HARQ feedback information at a time domain position corresponding to the PDSCH for sending the HARQ feedback information.
- the terminal device determines the time for sending the HARQ feedback information according to the time domain position of the last PDSCH of the DCI scheduling corresponding to the HARQ feedback-enabled HARQ process domain location.
- the HARQ feedback timing indicates the time domain position of the last PDSCH of the DCI scheduling corresponding to the HARQ process with HARQ feedback enabled and the time domain where the HARQ feedback information is sent Time-domain offset between locations.
- the terminal device receives high-layer signaling, where the high-layer signaling is used to indicate the HARQ feedback timing.
- An information feedback method applied to a terminal device wherein the method comprises:
- the terminal device receives DCI for scheduling PDSCH
- the terminal device determines the time domain position for sending the HARQ feedback information of the DCI scheduled PDSCH according to the time domain position of the last PDSCH corresponding to the HARQ feedback enabled HARQ process of the DCI scheduling;
- the terminal device sends the HARQ feedback information of the PDSCH scheduled by the DCI at the determined time domain position.
- the terminal device determines the time domain position of the last PDSCH corresponding to the HARQ feedback-enabled HARQ process of the DCI scheduling and the HARQ feedback timing for sending the DCI The time domain position of the HARQ feedback information of the scheduled PDSCH.
- the HARQ feedback timing indicates the time domain position of the last PDSCH of the DCI scheduling corresponding to the HARQ process with HARQ feedback enabled and the HARQ sending the PDSCH of the DCI scheduling.
- the terminal device receives high-layer signaling, where the high-layer signaling is used to indicate the HARQ feedback timing.
- An information feedback method applied to a terminal device wherein the method comprises:
- the terminal device receives the PDSCH, and the HARQ process corresponding to the PDSCH is disabled for feedback;
- the terminal device does not send the HARQ feedback codebook at the time domain position corresponding to the PDSCH for sending the HARQ feedback codebook.
- time domain position only corresponds to the PDSCH comprises: there is no other downlink transmission corresponding to the time domain position before a predetermined time of the time domain position.
- the terminal device determines that the time domain position only corresponds to the PDSCH according to the C-DAI and/or T-DAI in the DCI, and/or the terminal device It is determined according to the SPS configuration and/or activation state that the time domain position only corresponds to the PDSCH.
- the terminal device determines that it is not in the time domain position corresponding to the PDSCH for sending the HARQ feedback codebook Send the HARQ feedback codebook, and/or, the terminal device determines not to send the HARQ feedback codebook at the time domain position corresponding to the PDSCH for sending the HARQ feedback codebook according to the SPS configuration and/or activation state.
- the terminal device does not generate the HARQ feedback codebook corresponding to the PDSCH.
- the PDSCH includes a DCI-scheduled PDSCH and/or an SPS PDSCH.
- a method for receiving information, applied to a network device characterized in that the method comprises:
- the network device sends at least one downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH) to the terminal device, and the DCI schedules one or more PDSCHs, wherein the one or more PDSCHs include at least A corresponding HARQ process is a feedback-enabled or feedback-disabled PDSCH;
- DCI downlink control information
- the network device receives HARQ feedback information for one or more PDSCHSs sent by the terminal device.
- the HARQ feedback information corresponding to the second PDSCH is the same as that of the second PDSCH
- the decoding result of the second PDSCH is irrelevant, or the HARQ feedback information corresponding to the second PDSCH is related to the decoding result of the second PDSCH.
- the method of determining the HARQ feedback information corresponding to the SPS PDSCH and the second PDSCH comprising: the HARQ feedback information corresponding to the SPS PDSCH and the decoding result of the SPS PDSCH irrelevant, and the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH, or the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH, and the second PDSCH The corresponding HARQ feedback information is related to the decoding result of the second PDSCH.
- a method for receiving information, applied to a network device comprising:
- the network device sends a fourth DCI to the terminal device, where the fourth DCI includes accumulated DAI information and/or total DAI information;
- the network device receives the HARQ feedback information sent by the terminal device and determined according to the accumulated DAI information and/or the total DAI information.
- the HARQ process corresponding to the PDSCH scheduled by the fourth DCI is that the HARQ feedback information corresponding to the fourth PDSCH with feedback enabled is related to the decoding result of the fourth PDSCH, so The HARQ process corresponding to the PDSCH scheduled by the fourth DCI is feedback-disabled, and the HARQ feedback information corresponding to the second PDSCH is irrelevant or related to the decoding result of the second PDSCH.
- the method according to supplementary note 65 wherein the HARQ process corresponding to the PDSCH scheduled by the fourth DCI is feedback-disabled.
- the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH, including the The HARQ process corresponding to the PDSCH scheduled by the fourth DCI is feedback-disabled, and the HARQ feedback information corresponding to the second PDSCH is NACK.
- the HARQ process corresponding to the PDSCH scheduled by the fourth DCI is feedback enabled, and the HARQ feedback information corresponding to the first PDSCH is related to the decoding result of the first PDSCH.
- time-domain position for sending the HARQ feedback information is determined according to the time-domain position of the last PDSCH corresponding to the HARQ feedback-enabled HARQ process of the DCI scheduling .
- time domain position for sending the HARQ feedback information is the time domain position of the last PDSCH corresponding to the HARQ feedback enabled HARQ process scheduled according to the DCI and HARQ feedback timing determined.
- the HARQ feedback timing indicates the time domain position of the last PDSCH of the DCI scheduling corresponding to the HARQ process with HARQ feedback enabled and the time domain where the HARQ feedback information is sent Time-domain offset between locations.
- the fourth DCI includes a first information field, and the first information field is used to indicate the HARQ feedback timing, or, the method further includes:
- the network device sends high-layer signaling to the terminal device, where the high-layer signaling is used to indicate the HARQ feedback timing.
- a method for receiving information, applied to a network device characterized in that the method comprises:
- the network device sends DCI for scheduling PDSCH
- the time domain position used by the network device to send the HARQ feedback information of the DCI-scheduled PDSCH receives the HARQ feedback information of the DCI-scheduled PDSCH sent by the terminal device, and the time domain position is based on the DCI
- the time domain position of the last scheduled PDSCH corresponding to the HARQ feedback-enabled HARQ process is determined.
- time domain position is determined according to the time domain position of the last PDSCH of the DCI scheduling corresponding to the HARQ feedback-enabled HARQ process and the HARQ feedback timing.
- the network device sends high-layer signaling, where the high-layer signaling is used to indicate the HARQ feedback timing.
- a terminal device comprising a memory and a processor, the memory stores a computer program, and the processor is configured to execute the computer program to implement the information feedback method described in any one of Supplements 1 to 49 .
- a network device comprising a memory and a processor, the memory stores a computer program, and the processor is configured to execute the computer program to implement the information receiving method described in any one of Supplements 50 to 82 5.
- a communication system comprising:
- An information feedback device applied to terminal equipment characterized in that the device comprises:
- a first receiving unit which receives at least one downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH), and the DCI schedules one or more PDSCHs, wherein the one or more PDSCHs include at least one
- the corresponding HARQ process is a feedback-enabled or feedback-disabled PDSCH;
- a first sending unit which sends HARQ feedback information for one or more PDSCHSs.
- the HARQ feedback information corresponding to the second PDSCH is the same as the second PDSCH
- the decoding result of the second PDSCH is irrelevant, or the HARQ feedback information corresponding to the second PDSCH is related to the decoding result of the second PDSCH.
- the HARQ feedback information corresponding to the SPS PDSCH and the second PDSCH are determined in different ways, including: the HARQ feedback information corresponding to the SPS PDSCH and the decoding result of the SPS PDSCH Correlation, and the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH, or the HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH, and the second PDSCH
- the corresponding HARQ feedback information is related to the decoding result of the second PDSCH.
- the at least one DCI includes a first DCI and/or a second DCI and/or a third DCI
- the first DCI schedules multiple PDSCHs
- the plurality of PDSCHs includes at least one first PDSCH whose corresponding HARQ process is feedback-enabled and at least one second PDSCH whose corresponding HARQ process is feedback-disabled
- the second DCI schedules a plurality of second PDSCHs, and the plurality of Each of the second PDSCHs corresponds to a HARQ process with HARQ feedback disabled, or the second DCI schedules a second PDSCH, and the second PDSCH corresponds to a HARQ process with HARQ feedback disabled
- the third DCI schedules multiple first PDSCHs , and the multiple first PDSCHs all correspond to a HARQ process enabled with HARQ feedback, or the third DCI schedules one first PDSCH, and the one first PDSCH corresponds to
- the HARQ feedback information of the first PDSCH is related to the decoding result of the first PDSCH; or, the HARQ feedback information of the first PDSCH is related to the decoding result of the first PDSCH, and the second PDSCH The HARQ feedback information is related to the decoding result of the second PDSCH.
- the HARQ feedback information corresponding to the PDSCH scheduled by the second DCI is the same as the second DCI
- the decoding result of the PDSCH scheduled by the DCI is related; or, the HARQ feedback information corresponding to the PDSCH scheduled by the second DCI is not related to the decoding result of the PDSCH scheduled by the second DCI.
- the HARQ feedback information corresponding to the second PDSCH is not related to the decoding result of the second PDSCH, and the HARQ feedback information corresponding to the first PDSCH is related to the decoding result of the first PDSCH; or, the first PDSCH
- the HARQ feedback information corresponding to a PDSCH is related to the decoding result of the first PDSCH, and the HARQ feedback information corresponding to the second PDSCH is related to the decoding result of the second PDSCH.
- the terminal device is configured or activated with SPS
- the HARQ-ACK process corresponding to the PDSCH (SPS PDSCH) of the SPS is HARQ feedback disabled
- the first When a receiving unit only receives at least one of the first DCI or only receives at least one of the third DCI, or, when the terminal device is configured or activated with SPS, and the HARQ-ACK corresponding to the SPS PDSCH
- the process is that HARQ feedback is disabled, and the first receiving unit receives at least one of the first DCI and/or receives at least one of the second DCI, and also receives at least one of the third DCI
- the HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH
- the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH
- the HARQ feedback information of the first PDSCH is related to The decoding result of the first PDSCH is related; or, the HARQ feedback information of the first PDSCH is related to the decoding result of the first PDSCH, and the HARQ feedback information of the second PDSCH is related to the decoding result of the second PDSCH Correlation, the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH; or,
- the HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH, the HARQ feedback information of the first PDSCH is related to the decoding result of the first PDSCH, and the HARQ feedback information of the second PDSCH is related to the decoding result of the SPS PDSCH. related to the decoding result of the second PDSCH; or,
- the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH
- the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH
- the HARQ feedback information of the first PDSCH is related to The decoding results of the first PDSCH are related.
- the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH, and the HARQ feedback information corresponding to the PDSCH scheduled by the second DCI is related to the decoding result of the PDSCH scheduled by the second DCI; or, the The HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH, and the HARQ feedback information corresponding to the PDSCH scheduled by the second DCI has nothing to do with the decoding result of the second PDSCH.
- the terminal device is configured or activated with SPS
- the HARQ-ACK process corresponding to the PDSCH (SPS PDSCH) of the SPS is HARQ feedback enabled
- the first receiving unit only receives at least one of the first DCI or only receives at least one of the second DCI or only receives at least one of the third DCI, or when the terminal device is configured or activated SPS, and the HARQ-ACK process corresponding to the SPS PDSCH is HARQ feedback enabled
- the first receiving unit receives at least one of the first DCI and/or receives at least one of the second DCI, and also receives to at least one third DCI
- the HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH
- the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH
- the HARQ feedback information of the first PDSCH is related to the The decoding result of the first PDSCH is related; or, the HARQ feedback information of the first PDSCH is related to the decoding result of the first PDSCH, and the HARQ feedback information of the second PDSCH is related to the decoding result of the second PDSCH , the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH.
- An information feedback device applied to terminal equipment characterized in that the device comprises:
- the second receiving unit receives fourth downlink control information (DCI), where the fourth DCI includes accumulated DAI information and/or total DAI information;
- DCI downlink control information
- a first determining unit configured to determine HARQ feedback information according to the accumulated DAI information and/or total DAI information.
- the device according to Supplementary Note 19 or 20, wherein the accumulated DAI information and/or the total DAI information are only included in the scheduled PDSCH for the DCI used to schedule the PDSCH and include at least one corresponding HARQ process is Feedback DCI of enabled PDSCH.
- the PDSCH scheduled by the fourth DCI includes the fourth PDSCH whose corresponding HARQ process is feedback enabled and the corresponding HARQ process whose feedback is disabled first Two PDSCH, the accumulated DAI information/or the total DAI information counts the fourth DCI.
- the HARQ process corresponding to the PDSCH scheduled by the fourth DCI is that the HARQ feedback information corresponding to the fourth PDSCH with feedback enabled is related to the decoding result of the fourth PDSCH, so The HARQ process corresponding to the PDSCH scheduled by the fourth DCI is feedback-disabled, and the HARQ feedback information corresponding to the second PDSCH is irrelevant or related to the decoding result of the second PDSCH.
- the device according to supplementary note 24, wherein the HARQ process corresponding to the PDSCH scheduled by the fourth DCI is feedback-disabled.
- the HARQ feedback information corresponding to the second PDSCH is irrelevant to the decoding result of the second PDSCH, including the The HARQ process corresponding to the PDSCH scheduled by the fourth DCI is feedback-disabled, and the HARQ feedback information corresponding to the second PDSCH is NACK.
- a second sending unit configured to send the HARQ feedback information at a time domain position corresponding to the PDSCH for sending the HARQ feedback information.
- the second determining unit is configured to determine the time domain position for sending the HARQ feedback information according to the time domain position of the last PDSCH of the DCI scheduling corresponding to the HARQ feedback enabled HARQ process.
- the HARQ feedback timing indicates the time domain position of the last PDSCH of the DCI scheduling corresponding to the HARQ process with HARQ feedback enabled and the time domain where the HARQ feedback information is sent Time-domain offset between locations.
- the fourth DCI includes a first information field, and the first information field is used to indicate the HARQ feedback timing, or, the device further includes:
- a third receiving unit configured to receive high-layer signaling, where the high-layer signaling is used to indicate the HARQ feedback timing.
- An information feedback device applied to terminal equipment, characterized in that the device comprises:
- a fourth receiving unit which receives DCI for scheduling PDSCH
- the third determining unit is configured to determine the time domain position for sending the HARQ feedback information of the DCI scheduled PDSCH according to the time domain position of the last PDSCH corresponding to the HARQ feedback enabled HARQ process of the DCI scheduling;
- the second sending unit is configured to send the HARQ feedback information of the PDSCH scheduled by the DCI at the determined time domain position.
- the third determination unit determines the time domain position of the PDSCH corresponding to the HARQ feedback-enabled HARQ process of the DCI scheduling and the HARQ feedback timing for sending the The time domain position of the HARQ feedback information of the PDSCH scheduled by the DCI.
- the HARQ feedback timing indicates the time domain position of the last PDSCH of the DCI scheduling corresponding to the HARQ process with HARQ feedback enabled and the HARQ sending the PDSCH of the DCI scheduling.
- the device further includes:
- a fifth receiving unit configured to receive high-layer signaling, where the high-layer signaling is used to indicate the HARQ feedback timing.
- An information feedback device applied to terminal equipment, characterized in that the device comprises:
- a sixth receiving unit which receives a PDSCH, and the HARQ process corresponding to the PDSCH is disabled for feedback;
- the processing unit does not send the HARQ feedback codebook at the time domain position corresponding to the PDSCH for sending the HARQ feedback codebook.
- the apparatus according to supplementary note 43, wherein the time domain position only corresponds to the PDSCH comprises: there is no other downlink transmission corresponding to the time domain position before a predetermined time of the time domain position.
- the processing unit determines that the time domain position only corresponds to the PDSCH according to the C-DAI and/or T-DAI in the DCI, and/or, according to the SPS configuration and /or the activation state determines that the time domain position only corresponds to the PDSCH.
- the processing unit determines the time domain position for sending the HARQ feedback codebook corresponding to the PDSCH according to the C-DAI and/or T-DAI in the DCI Sending the HARQ feedback codebook, and/or determining not to send the HARQ feedback codebook at the time domain position corresponding to the PDSCH for sending the HARQ feedback codebook according to the SPS configuration and/or activation state.
- the PDSCH includes a DCI-scheduled PDSCH and/or an SPS PDSCH.
- Multiple PDSCHs in the PDSCHs are scheduled by the same DCI.
- An information receiving device applied to network equipment, characterized in that the device comprises:
- a third sending unit which sends at least one downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH) to the terminal device, and the DCI schedules one or more PDSCHs, wherein the one or more PDSCHs including at least one PDSCH whose corresponding HARQ process is feedback-enabled or feedback-disabled;
- DCI downlink control information
- a seventh receiving unit configured to receive HARQ feedback information for one or more PDSCHSs sent by the terminal device.
- the HARQ feedback information corresponding to the second PDSCH is the same as that of the second PDSCH
- the decoding result of the second PDSCH is irrelevant, or the HARQ feedback information corresponding to the second PDSCH is related to the decoding result of the second PDSCH.
- the HARQ feedback information corresponding to the second PDSCH is independent of the decoding result of the second PDSCH, including that the HARQ feedback information corresponding to the second PDSCH is NACK.
- the HARQ feedback information corresponding to the first PDSCH is the same as the first PDSCH
- the decoding result of PDSCH is related.
- the method of determining the HARQ feedback information corresponding to the SPS PDSCH and the second PDSCH comprising: the HARQ feedback information corresponding to the SPS PDSCH and the decoding result of the SPS PDSCH irrelevant, and the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH, or the HARQ feedback information corresponding to the SPS PDSCH is related to the decoding result of the SPS PDSCH, and the second PDSCH The corresponding HARQ feedback information is related to the decoding result of the second PDSCH.
- the determination of the HARQ feedback information corresponding to the SPS PDSCH and the second PDSCH is different, comprising: the HARQ feedback information corresponding to the SPS PDSCH and the decoding result of the SPS PDSCH Correlation, and the HARQ feedback information corresponding to the second PDSCH has nothing to do with the decoding result of the second PDSCH, or the HARQ feedback information corresponding to the SPS PDSCH has nothing to do with the decoding result of the SPS PDSCH, and the second PDSCH
- the corresponding HARQ feedback information is related to the decoding result of the second PDSCH.
- An information receiving device applied to network equipment, characterized in that the device comprises:
- a fourth sending unit which sends a fourth DCI to the terminal device, where the fourth DCI includes accumulated DAI information and/or total DAI information;
- An eighth receiving unit configured to receive HARQ feedback information sent by the terminal device and determined according to the accumulated DAI information and/or total DAI information.
- the device according to Supplementary Note 60 or 61, wherein the accumulated DAI information and/or the total DAI information are only included in the scheduled PDSCH for the DCI used to schedule the PDSCH and include at least one corresponding HARQ process is Feedback DCI of enabled PDSCH.
- the PDSCH scheduled by the fourth DCI includes the fourth PDSCH whose corresponding HARQ process is feedback enabled and the corresponding HARQ process whose feedback is disabled first Two PDSCH, the accumulated DAI information/or the total DAI information counts the fourth DCI.
- the HARQ process corresponding to the PDSCH scheduled by the fourth DCI is that the HARQ feedback information corresponding to the fourth PDSCH with feedback enabled is related to the decoding result of the fourth PDSCH, so The HARQ process corresponding to the HARQ process in the PDSCH scheduled by the fourth DCI is feedback-disabled, and the HARQ feedback information corresponding to the second PDSCH is irrelevant or related to the decoding result of the second PDSCH.
- the device wherein the HARQ process corresponding to the PDSCH scheduled by the fourth DCI is feedback-disabled.
- the HARQ feedback information corresponding to the second PDSCH is irrelevant to the decoding result of the second PDSCH, including the The HARQ process corresponding to the PDSCH scheduled by the fourth DCI is feedback-disabled, and the HARQ feedback information corresponding to the second PDSCH is NACK.
- the eighth receiving unit receives the HARQ feedback information at a time domain position corresponding to the PDSCH for sending HARQ feedback information.
- time domain position for sending the HARQ feedback information is determined according to the time domain position of the last PDSCH of the DCI scheduling corresponding to the HARQ feedback enabled HARQ process .
- time domain position for sending the HARQ feedback information is the time domain position of the last PDSCH corresponding to the HARQ feedback enabled HARQ process scheduled according to the DCI and HARQ feedback timing determined.
- the HARQ feedback timing indicates the time domain position of the last PDSCH of the DCI scheduling corresponding to the HARQ process with HARQ feedback enabled and the time domain where the HARQ feedback information is sent Time-domain offset between locations.
- the fourth DCI includes a first information field, and the first information field is used to indicate the HARQ feedback timing, or, the device further includes:
- a fifth sending unit configured to send high-layer signaling to the terminal device, where the high-layer signaling is used to indicate the HARQ feedback timing.
- the fourth DCI is used to schedule PDSCH, and the PDSCH scheduled by the DCI includes the PDSCH whose corresponding HARQ process is feedback-enabled or feedback-disabled .
- An information receiving device applied to network equipment, characterized in that the device comprises:
- a sixth sending unit which sends DCI for scheduling PDSCH
- a seventh sending unit receiving the HARQ feedback information of the DCI-scheduled PDSCH sent by the terminal device at a time-domain position for sending the HARQ feedback information of the DCI-scheduled PDSCH, the time-domain position is according to the The time domain position of the last PDSCH corresponding to the HARQ feedback-enabled HARQ process of the DCI scheduling is determined.
- time domain position is determined according to the time domain position of the last PDSCH of the DCI scheduling corresponding to the HARQ feedback-enabled HARQ process and the HARQ feedback timing.
- the HARQ feedback timing indicates the time domain position of the last PDSCH of the DCI scheduling corresponding to the HARQ feedback-enabled HARQ process and the HARQ sending the PDSCH of the DCI scheduling The time domain offset between the time domain positions of the feedback information.
- the device according to supplementary note 79 or 80, wherein the DCI includes a first information field, and the first information field is used to indicate the HARQ feedback timing, or, the device further includes:
- An eighth sending unit configured to send high-layer signaling, where the high-layer signaling is used to indicate the HARQ feedback timing.
- An information feedback method applied to a terminal device wherein the method comprises:
- the terminal device receives DCI for scheduling PDSCH
- the terminal device receives the PDSCH
- the terminal device determines according to the C-DAI and/or T-DAI in the DCI that the HARQ feedback codebook needs to be sent at the time domain position corresponding to the PDSCH for sending the HARQ feedback codebook.
- An information feedback device applied to terminal equipment, characterized in that the device comprises:
- a receiving unit which receives DCI for scheduling PDSCH and receives PDSCH;
- the determining unit is configured to determine, according to the C-DAI and/or T-DAI in the DCI, that the HARQ feedback codebook needs to be sent at the time domain position corresponding to the PDSCH for sending the HARQ feedback codebook.
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Abstract
Description
Claims (20)
- 一种信息反馈装置,应用于终端设备,其特征在于,所述装置包括:第一接收单元,其接收用于调度物理下行共享信道(PDSCH)的至少一个下行控制信息(DCI),所述DCI调度一个或多个PDSCHs,其中,所述一个或多个PDSCH中包括至少一个对应的HARQ进程是反馈使能的或是反馈禁用的PDSCH;第一发送单元,其发送针对一个或多个PDSCHSs的HARQ反馈信息。
- 根据权利要求1所述的装置,其中,在所述DCI调度的PDSCH中包括对应HARQ进程是反馈禁用的第二PDSCH时,所述第二PDSCH对应的HARQ反馈信息与所述第二PDSCH的解码结果无关,或所述第二PDSCH对应的HARQ反馈信息与所述第二PDSCH的解码结果相关。
- 根据权利要求1所述的装置,其中,在所述DCI调度的PDSCH中包括对应HARQ进程是反馈使能的第一PDSCH时,所述第一PDSCH对应的HARQ反馈信息与所述第一PDSCH的解码结果相关。
- 一种信息反馈装置,应用于终端设备,其特征在于,所述装置包括:第二接收单元,其接收的第四下行控制信息(DCI),所述第四DCI包括累计DAI信息和/或总DAI信息;第一确定单元,其根据所述累计DAI信息和/或总DAI信息确定HARQ反馈信息。
- 根据权利要求4所述的装置,其中,所述累计DAI信息和/或所述总DAI信息针对用于调度PDSCH的DCI仅计入调度的PDSCH中包含至少一个对应的HARQ进程是反馈使能的PDSCH的DCI。
- 根据权利要求4所述的装置,其中,所述累计DAI信息和/或所述总DAI信息不统计调度的PDSCH中仅包含对应的HARQ进程是反馈禁用的PDSCH的DCI。
- 根据权利要求4所述的装置,其中,所述第四DCI调度的PDSCH中包括对应的HARQ进程是反馈使能的第四PDSCH和对应的HARQ进程是反馈禁用的第二PDSCH,所述累计DAI信息/或所述总DAI信息统计所述第四DCI。
- 根据权利要求7所述的装置,其中,所述第四DCI调度的PDSCH对应的HARQ过程是反馈使能的第四PDSCH对应的HARQ反馈信息与所述第四PDSCH的解码结果相关,所述第四DCI调度的PDSCH中对应的HARQ进程是反馈禁用的第二PDSCH 对应的HARQ反馈信息与所述第二PDSCH的解码结果无关或有关。
- 根据权利要求4所述的装置,其中,所述累计DAI信息和/或所述总DAI信息针对DCI调度的PDSCH仅统计对应的HARQ进程是反馈使能的PDSCH。
- 根据权利要求4所述的装置,其中,所述累计DAI信息和/或所述总DAI信息不统计对应的HARQ进程是反馈禁用的PDSCH。
- 根据权利要求4所述的装置,其中,所述装置还包括:第二发送单元,其在所述PDSCH对应的用于发送HARQ反馈信息的时域位置发送所述HARQ反馈信息。
- 根据权利要求4所述的装置,其中,所述第四DCI调度一个或多个PDSCH,所述第四DCI应用的PDSCH时域资源分配表支持通过一个DCI调度多个PDSCHs。
- 一种信息反馈装置,应用于终端设备,其特征在于,所述装置包括:第六接收单元,其接收PDSCH,所述PDSCH对应的HARQ进程是反馈禁用的;处理单元,其不在所述PDSCH对应的用于发送HARQ反馈码本的时域位置发送HARQ反馈码本。
- 根据权利要求13所述的装置,其中,所述时域位置仅对应所述PDSCH。
- 根据权利要求14所述的装置,其中,所述时域位置仅对应所述PDSCH包括:所述时域位置的预定时间之前没有其他对应所述时域位置的下行传输。
- 根据权利要求13所述的装置,其中,所述处理单元根据DCI中的C-DAI和/或T-DAI确定所述时域位置仅对应所述PDSCH,和/或,根据SPS配置和/或激活状态确定所述时域位置仅对应所述PDSCH。
- 根据权利要求13所述的装置,其中,所述处理单元根据DCI中的C-DAI和/或T-DAI确定不在所述PDSCH对应的用于发送HARQ反馈码本的时域位置发送HARQ反馈码本,和/或,根据SPS配置和/或激活状态确定不在所述PDSCH对应的用于发送HARQ反馈码本的时域位置发送HARQ反馈码本。
- 根据权利要求13所述的装置,其中,所述处理单元不生成所述PDSCH对应的HARQ反馈码本。
- 根据权利要求13所述的装置,其中,所述PDSCH包括DCI调度的PDSCH和/或SPS PDSCH。
- 根据权利要求13所述的装置,其中,所述装置还包括:所述PDSCH中的多个PDSCH由同一DCI调度。
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| PCT/CN2021/122477 WO2023050436A1 (zh) | 2021-09-30 | 2021-09-30 | 信息反馈方法以及装置 |
| CN202180102845.XA CN118057969A (zh) | 2021-09-30 | 2021-09-30 | 信息反馈方法以及装置 |
| US18/618,077 US20240292413A1 (en) | 2021-09-30 | 2024-03-27 | Information feedback method and apparatus |
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| EP4415420A4 (en) * | 2021-10-08 | 2025-02-19 | Panasonic Intellectual Property Corporation of America | COMMUNICATION DEVICE AND COMMUNICATION METHOD |
| CN116094669A (zh) * | 2021-11-04 | 2023-05-09 | 华为技术有限公司 | 一种通信方法及装置 |
| CN116094657B (zh) * | 2021-11-05 | 2025-01-07 | 大唐移动通信设备有限公司 | 混合自动重传请求应答反馈方法、装置及终端设备 |
| US12376105B2 (en) * | 2021-12-20 | 2025-07-29 | Sharp Kabushiki Kaisha | User equipment, base station, and method in a non-terrestrial network |
| WO2024007247A1 (en) * | 2022-07-07 | 2024-01-11 | Mediatek Singapore Pte. Ltd. | Schemes on disabling harq feedback for multi-tb in iot ntn |
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| US20240292413A1 (en) | 2024-08-29 |
| JP7700964B2 (ja) | 2025-07-01 |
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