WO2023134619A1 - Procédé et appareil de renvoi d'informations d'accusé de réception (ack) de demande de répétition automatique hybride (harq) - Google Patents

Procédé et appareil de renvoi d'informations d'accusé de réception (ack) de demande de répétition automatique hybride (harq) Download PDF

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Publication number
WO2023134619A1
WO2023134619A1 PCT/CN2023/071292 CN2023071292W WO2023134619A1 WO 2023134619 A1 WO2023134619 A1 WO 2023134619A1 CN 2023071292 W CN2023071292 W CN 2023071292W WO 2023134619 A1 WO2023134619 A1 WO 2023134619A1
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WIPO (PCT)
Prior art keywords
harq
pucch
information
value
ack
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PCT/CN2023/071292
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English (en)
Chinese (zh)
Inventor
李军
焦淑蓉
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华为技术有限公司
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Publication of WO2023134619A1 publication Critical patent/WO2023134619A1/fr

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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
    • 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
    • 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]
    • 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
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present application relates to the field of wireless communication, and more specifically, relates to a HARQ-ACK information feedback method and device.
  • a physical uplink control channel (physical uplink control channel, PUCCH) carrying uplink control information is sent on a fixed cell by default.
  • PUCCH physical uplink control channel
  • the Release 17 (release 17, R17) Rel-17 standard of the 3rd generation partnership project (3rd generation partnership project, 3GPP) introduces a PUCCH cell switching (cell switching) feature.
  • the downlink control information (DCI) can include a 1-bit PUCCH cell indication field, which is used to indicate the bearer hybrid automatic repeat request acknowledgment (hybrid automatic repeat request acknowledgment, HARQ-ACK) information Whether the PUCCH is on the primary cell (primary cell, PCell) or the secondary cell (secondary cell, SCell), this SCell is also called the PUCCH handover secondary cell.
  • the value of K1 is determined according to the K1 set of the PCell; when it is indicated that the above-mentioned PUCCH is on the SCell, the value of K1 is determined according to the K1 set of the SCell.
  • the terminal device not only needs to feed back HARQ-ACK information for the dynamically scheduled downlink data, but also needs physical A downlink shared channel (physical downlink shared channel, PDSCH) is used to feed back HARQ-ACK information.
  • SPS semi-persistent scheduling
  • the PUCCH carrying the HARQ-ACK information of the dynamically scheduled downlink data and the PUCCH carrying the HARQ-ACK information of the PDSCH of the SPS may not be on the same cell, so the user equipment (user equipment, The time domain position of the PUCCH carrying the HARQ-ACK information of the PDSCH of the SPS determined by the UE) may be invalid, thereby affecting the performance of data transmission.
  • the embodiment of the present application provides a HARQ-ACK information feedback method and device, which are used to solve the problem that after the PUCCH cell switching feature is introduced, the time domain position of the PUCCH carrying the HARQ-ACK information of the semi-persistently scheduled PDSCH determined by the UE may be invalid.
  • the problem after the PUCCH cell switching feature is introduced, the time domain position of the PUCCH carrying the HARQ-ACK information of the semi-persistently scheduled PDSCH determined by the UE may be invalid.
  • a method for feeding back HARQ-ACK information is provided, and the method may be executed by a terminal device, or may also be executed by components of the terminal device.
  • the method includes: the terminal device receives downlink control information from the network device, the downlink control information is used to schedule downlink data, the downlink control information includes first indication information, and the first indication information indicates that the terminal equipment uses the first PUCCH on the first cell Send the first HARQ-ACK information, the first HARQ-ACK information is the HARQ-ACK information corresponding to the downlink data, the downlink control information is also used to activate semi-persistent scheduling, the downlink control information also includes the second indication information, the second indication information Indicate the first value, the first value is a value in the first set, and the second set includes the first value; the terminal device determines the time domain position of the second PUCCH according to the first value; the terminal device is in the second cell above, the second HARQ-ACK information is sent through the second PUCCH.
  • the second HARQ-ACK information is HARQ-ACK information corresponding to semi-persistently scheduled data.
  • the value in the first set indicates the time slot offset value between the PDSCH carrying downlink data and the first PUCCH carrying the first HARQ-ACK information; the value in the second set indicates the PDSCH carrying semi-persistently scheduled data The time slot offset value between the second PUCCH carrying the second HARQ-ACK information.
  • the first set belongs to the first cell, and the second set belongs to the second cell. It can also be understood that the first set is the K1 set of the first cell, and the second set is the K1 set of the second cell.
  • the first cell may be a PUCCH handover secondary cell
  • the second cell may be a primary cell or a PUCCH secondary cell.
  • the DCI sent by the network device to the terminal device is also used to schedule downlink data while activating the semi-persistent scheduling.
  • the timing offset value from the PDSCH to the HARQ feedback indicated by the DCI can also indicate the data corresponding to the semi-persistent scheduling.
  • the timing offset value belongs to both the K1 set in the first cell and the K1 set in the second cell.
  • the time-domain position of the PUCCH carrying the HARQ-ACK information corresponding to the semi-persistently scheduled data determined by the terminal device is valid, so that the HARQ-ACK information corresponding to the semi-persistently scheduled data can be fed back in time, ensuring Transmission performance of semi-persistently scheduled data.
  • the above solution can also be understood as that the first value in the first set indicated by the second indication information that the terminal device does not expect to receive is not included in the second set.
  • the terminal device does not expect to activate the time slot offset value between the PDSCH indicated by the DCI of the SPS and the PUCCH carrying the HARQ-ACK information of the PDSCH, which is not in the intersection of the first set and the second set value.
  • the terminal device may determine the time domain position of the first PUCCH according to the first value; and the terminal device may send the first HARQ-ACK information through the first PUCCH on the first cell.
  • the first PUCCH can be sent on the first cell, thereby reducing the time delay of HARQ-ACK transmission of downlink data.
  • a method for feeding back HARQ-ACK information is provided, and the method may be executed by a terminal device, or may also be executed by components of the terminal device.
  • the method includes: the terminal device receives downlink control information from the network device, the downlink control information is used to schedule downlink data, the downlink control information includes first indication information, and the first indication information indicates that the terminal equipment uses the first PUCCH on the first cell Send the first HARQ-ACK information, the first HARQ-ACK information is the HARQ-ACK information corresponding to the downlink data; the downlink control information is also used to activate semi-persistent scheduling, and the downlink control information also includes third indication information, the third indication information Indicates the values in the first set and the values in the second set.
  • the terminal device may determine the time domain position of the first PUCCH and the time domain position of the second PUCCH according to the third indication information.
  • the terminal device sends the first HARQ-ACK information through the first PUCCH; on the second cell, the terminal device sends the second HARQ-ACK information through the second PUCCH.
  • the second HARQ-ACK information is the HARQ-ACK information corresponding to the semi-persistently scheduled data
  • the value in the first set indicates the PDSCH carrying the downlink data and the first HARQ-ACK information carrying the first HARQ-ACK information.
  • a time slot offset value between PUCCHs; a value in the second set indicates a time slot offset value between a PDSCH carrying the semi-persistently scheduled data and a second PUCCH carrying second HARQ-ACK information.
  • the terminal device may determine the time domain position of the first PUCCH according to the third indication information and the first set.
  • the first PUCCH can be sent on the first cell, thereby reducing the time delay of HARQ-ACK transmission of downlink data.
  • the terminal device determines the time domain position of the second PUCCH according to the third indication information and the second set.
  • the PDSCH to HARQ-ACK feedback timing indication field in the downlink control information in this method indicates two K1 values, one is the K1 value in the K1 set (ie, the first set) in the first cell, and the other One is the K1 value in the K1 set in the second cell (ie, the second set). Therefore, the third indication information can also indicate valid values in the second set. It can also be understood that, in the above method, the terminal device does not expect to receive an indication that the third indication information exceeds the value included in the second set.
  • the DCI sent by the network device to the terminal device is used to dynamically schedule downlink data while activating the semi-persistent scheduling.
  • the timing offset value from the PDSCH to the HARQ feedback indicated by the DCI can be simultaneously In the K1 set of the second cell, indicate the time domain position of the PUCCH that carries the HARQ-ACK information corresponding to the semi-persistently scheduled data, and indicate the time of the PUCCH that carries the HARQ-ACK information corresponding to the downlink data in the K1 set of the first cell. domain location.
  • the time-domain position of the PUCCH carrying the HARQ-ACK information corresponding to the semi-persistently scheduled data determined by the terminal device is valid, so that the HARQ-ACK information corresponding to the semi-persistently scheduled data can be fed back in time, ensuring Transmission performance of semi-persistently scheduled data.
  • a method for feeding back HARQ-ACK information is provided, and the method may be executed by a terminal device, or may also be executed by components of the terminal device.
  • the method includes: the terminal device receives configuration information from the network device, the configuration information is used to configure a third PUCCH carrying third information for the second cell, and the third PUCCH and a physical uplink shared channel (PUSCH) are connected at the same time Domains overlap.
  • the terminal device receives downlink control information from the network device, the downlink control information is used to schedule downlink data, the downlink control information includes first indication information, and the first indication information instructs the terminal device to send the first HARQ- ACK information, the first HARQ-ACK information is HARQ-ACK information corresponding to downlink data.
  • the terminal device discards the third PUCCH.
  • the third information may include one or more of the following: HARQ-ACK information of semi-persistently scheduled data, channel state information, and scheduling request information.
  • the terminal device can discard The third PUCCH, so that the terminal device does not need to multiplex the control channel on the two cells (also can be understood as "cross-cell"), and then multiplex it into the corresponding PUSCH, and at the same time, it can reduce the number of channels carrying uplink control information.
  • the number of PUSCHs can simplify the multiplexing complexity of the terminal equipment.
  • the time domain position of the physical downlink control channel (physical downlink control channel, PDCCH) bearing the DCI is before the time domain position of the PUSCH, and the time domain position interval between the PDCCH and the PUSCH is greater than or equal to the first
  • the terminal device may discard the third PUCCH.
  • the terminal device may The third PUCCH is discarded.
  • the terminal device receives the downlink control information successfully or not will affect whether the terminal device discards the third PUCCH on the second cell. Assuming that the terminal device needs three symbols to parse the DCI (an example of the first duration), the terminal device needs to successfully parse the DCI before sending the PUSCH or before sending the third PUCCH.
  • the network device can determine that the terminal device will discard the third PUCCH, that is, the network device can also determine that the third information will not be multiplexed on the PUSCH. Therefore, the network device does not need blind detection when detecting the PUSCH, which reduces the detection complexity of the network device.
  • the network device cannot determine whether the terminal device will discard the third PUCCH, and the network device cannot determine whether the third information is multiplexed on the PUSCH. Therefore, when the network device detects the PUSCH, it needs to blindly detect whether the third information is multiplexed on the PUSCH, and the detection complexity is high.
  • the time domain positions of the first PUCCH and the PUSCH do not overlap.
  • the terminal device may send the first HARQ-ACK information through the first PUCCH. It can also be understood that the first PUCCH does not need to be multiplexed with the PUSCH.
  • the time domain positions of the first PUCCH and the PUSCH overlap.
  • the terminal device may send the first HARQ-ACK information through the PUSCH. It can also be understood that the first PUCCH and the PUSCH are multiplexed.
  • the third PUCCH overlaps with the downlink symbols configured by the network device in the time domain.
  • the time slot where the third PUCCH is located overlaps in the time domain with the time slot where the first PUCCH is located.
  • a method for feeding back HARQ-ACK information is provided.
  • the method is a method on the network side corresponding to the first aspect, and may be executed by a network device, or may also be executed by components of the network device.
  • the beneficial effects achieved by this method can refer to the beneficial effects achieved by the HARQ-ACK information feedback method in the first aspect above.
  • the method includes: the network device sends downlink control information to the terminal device, the downlink control information is used to schedule downlink data, the downlink control information includes first indication information, and the first indication information instructs the terminal equipment to transmit the first PUCCH on the first cell
  • the downlink control information is also used to activate semi-persistent scheduling, the downlink control information also includes second indication information, the second indication information indicates The first value, the first value is a value in the first set, and the second set includes the first value.
  • the network device receives the second HARQ-ACK information through the second PUCCH on the second cell, where the number of time slots between the time domain position of the second PUCCH and the PDSCH carrying the semi-persistently scheduled data is the first one value.
  • the second HARQ-ACK information is HARQ-ACK information corresponding to semi-persistently scheduled data.
  • the value in the first set indicates the time slot offset value between the PDSCH carrying downlink data and the first PUCCH carrying the first HARQ-ACK information; the value in the second set indicates the PDSCH carrying semi-persistently scheduled data and the bearer The time slot offset value between the second PUCCHs of the second HARQ-ACK information.
  • the network device receives the first HARQ-ACK information through the first PUCCH on the first cell, where the number of time slots between the time domain position of the first PUCCH and the PDSCH carrying downlink data is the first value.
  • a fifth aspect provides a HARQ-ACK information feedback method, which is a method on the network side corresponding to the second aspect, and can be executed by a network device, or can also be executed by components of the network device.
  • the beneficial effects achieved by this method can refer to the beneficial effects achieved by the HARQ-ACK information feedback method in the second aspect above.
  • the method includes: the network device sends downlink control information to the terminal device, the downlink control information is used to schedule downlink data, the downlink control information includes first indication information, and the first indication information instructs the terminal equipment to transmit the first PUCCH on the first cell
  • the first HARQ-ACK information is the HARQ-ACK information corresponding to the downlink data
  • the downlink control information is also used to activate semi-persistent scheduling, the downlink control information also includes third indication information, and the third indication information indicates the first The values in the collection and the values in the second collection.
  • the network device receives the first HARQ-ACK information through the first PUCCH on the first cell, where the number of time slots between the time domain position of the first PUCCH and the PDSCH carrying downlink data is indicated by the third indication information value.
  • the network device receives the second HARQ-ACK information through the second PUCCH on the second cell, where the number of time slots between the time domain position of the second PUCCH and the PDSCH carrying semi-persistently scheduled data is the third indication The value indicated by the message.
  • the second HARQ-ACK information is HARQ-ACK information corresponding to semi-persistently scheduled data.
  • the value in the first set indicates the time slot offset value between the PDSCH carrying downlink data and the first PUCCH carrying the first HARQ-ACK information; the value in the second set indicates the PDSCH carrying semi-persistently scheduled data The time slot offset value between the second PUCCH carrying the second HARQ-ACK information.
  • the time slot offset value between the time domain position of the first PUCCH and the PDSCH carrying DCI-scheduled downlink data is the first values in the collection.
  • the time slot offset value between the time domain position of the second PUCCH and the PDSCH carrying semi-persistently scheduled data is the second set indicated by the third indication information value in .
  • a sixth aspect provides a communication method, which is a method on the network side corresponding to the third aspect, and may be executed by a network device, or may also be executed by components of the network device.
  • the beneficial effects achieved by this method can refer to the beneficial effects achieved by the HARQ-ACK information feedback method in the third aspect above.
  • the method includes: the network device sends configuration information to the terminal device, the configuration information is used to configure a third PUCCH carrying third information for the second cell, and the third PUCCH overlaps with the PUSCH in the time domain.
  • the network device sends downlink control information to the terminal device, the downlink control information is used to schedule downlink data, the downlink control information includes first indication information, and the first indication information instructs the terminal device to send the first HARQ-ACK through the first PUCCH on the first cell information, the first HARQ-ACK information is the HARQ-ACK information corresponding to the downlink data.
  • the terminal device is on the second cell and does not receive the third PUCCH.
  • the third information may include one or more of the following: HARQ-ACK information of semi-persistently scheduled data, channel state information, and scheduling request information.
  • the network device when the time domain position of the PDCCH carrying downlink control information is before the time domain position of the PUSCH, and the interval between the time domain positions of the PDCCH and the PUSCH is greater than or equal to the first duration, the network device does not receive the first Three PUCCH.
  • the terminal device may discard the third PUCCH.
  • the time domain positions of the first PUCCH and the PUSCH do not overlap.
  • the network device may receive the first HARQ-ACK information through the first PUCCH. It can also be understood that the first PUCCH does not need to be multiplexed with the PUSCH.
  • the time domain positions of the first PUCCH and the PUSCH overlap.
  • the network device may receive the first HARQ-ACK information through the PUSCH. It can also be understood that the first PUCCH and the PUSCH are multiplexed.
  • the third PUCCH overlaps with the downlink symbols configured by the network device in the time domain.
  • the time slot where the third PUCCH is located overlaps in the time domain with the time slot where the first PUCCH is located.
  • a communication device is provided, and the device is configured to execute the method in any possible implementation manner of the foregoing first aspect to the third aspect.
  • the apparatus may include a unit and/or module for executing the method in any possible implementation manner of the first aspect to the third aspect, such as a transceiver unit and/or a processing unit.
  • a communication device is provided, and the device is configured to execute the method in any possible implementation manner of the foregoing fourth aspect to the sixth aspect.
  • the apparatus may include a unit and/or module for executing the method in any possible implementation manner of the fourth aspect to the sixth aspect, such as a transceiver unit and/or a processing unit.
  • the communication unit may be a transceiver, or an input/output interface;
  • the processing unit may be at least one processor, or a processing circuit.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a communication device which includes: at least one processor, configured to execute a computer program or instruction stored in a memory, so as to implement any possible implementation manner in the above first aspect to the third aspect Methods.
  • the apparatus further includes a memory for storing computer programs or instructions.
  • the apparatus is a terminal device.
  • the apparatus is a chip, a chip system, or a circuit for a terminal device.
  • a communication device which includes: at least one processor, configured to execute a computer program or instruction stored in a memory, so as to implement any of the possible implementation manners of the fourth aspect to the sixth aspect.
  • the apparatus further includes a memory for storing computer programs or instructions.
  • the apparatus is a network device.
  • the apparatus is a chip, a chip system or a circuit for a network device.
  • a processing device including a processor and a memory.
  • the processor is used to read instructions stored in the memory, receive signals through the transceiver, and transmit signals through the transmitter, so as to execute the method in any possible implementation manner of any one of the first aspect to the sixth aspect.
  • a computer-readable storage medium stores program code for execution by a device, and the program code includes any one of the possible implementation manners for executing the above-mentioned first aspect to the sixth aspect Methods.
  • a computer program product including instructions is provided, and when the computer program product is run on a communication device, the communication device is made to execute the method in any possible implementation manner of the first aspect to the sixth aspect above.
  • a communication system in a fourteenth aspect, there is provided a communication system, the communication system includes a terminal device and a network device, the terminal device is used to execute the method in any one of the above first aspects, and the network device is used to execute The method of any implementation manner in the above fourth aspect; or, the terminal device is configured to execute the method of any implementation manner in the above second aspect, and the network device is configured to execute any implementation manner of the above fifth aspect A method in an implementation manner; the terminal device is configured to execute the method in any one of the implementation manners in the third aspect above, and the network device is configured to execute the method in any of the implementation manners in the sixth aspect above.
  • FIG. 1 is a schematic structural diagram of a mobile communication system applied in an embodiment of the present application
  • FIG. 2 is a schematic diagram of determining the time domain position of the PUCCH of the HARQ-ACK of the PDSCH carrying the SPS provided by the present application;
  • FIG. 3 is a schematic diagram of determining the type1 codebook provided by the present application.
  • FIG. 4 is a schematic diagram of PUCCH cell switching provided by the present application.
  • FIG. 5 is a schematic diagram of the time domain position of the PUCCH carrying the HARQ-ACK of the PDSCH of the SPS under the PUCCH cell switching provided by the present application;
  • FIG. 6 is a schematic flowchart of a HARQ-ACK information feedback method provided by the present application.
  • FIG. 7 is a schematic diagram of the time slot offset between the time domain position of the PUCCH and the PDSCH carrying downlink data when the subcarrier spacing provided by the present application is different;
  • FIG. 8 is another schematic diagram of the time domain position of the PUCCH carrying the HARQ-ACK of the PDSCH of the SPS under the PUCCH cell switching provided by the present application;
  • FIG. 9 is another schematic diagram of the time domain position of the PUCCH carrying the HARQ-ACK of the PDSCH of the SPS under the PUCCH cell switching provided by the present application;
  • Figure 10 is a schematic diagram of the HARQ-ACK bit position corresponding to the PDSCH of the SPS filled with "NACK" in the type 1 codebook of the PUCCH-sSCell provided by this application;
  • FIG. 11 is a schematic flowchart of a HARQ-ACK information feedback method provided by the present application.
  • FIG. 12 is a schematic diagram of discarding the third PUCCH provided by the present application.
  • Fig. 13 is a schematic block diagram of a communication device provided by the present application.
  • Fig. 14 is another schematic block diagram of a communication device provided by the present application.
  • FIG. 1 is a schematic structural diagram of a communication system 1000 applied in an embodiment of the present application.
  • the communication system includes a radio access network 100 and a core network 200 , and optionally, the communication system 1000 may also include the Internet 300 .
  • the radio access network 100 may include at least one radio access network device (such as 110a and 110b in FIG. 1 ), and may also include at least one terminal (such as 120a-120j in FIG. 1 ).
  • the terminal is connected to the wireless access network device in a wireless manner, and the wireless access network device is connected to the core network in a wireless or wired manner.
  • the core network equipment and the wireless access network equipment can be independent and different physical equipment, or the functions of the core network equipment and the logical functions of the wireless access network equipment can be integrated on the same physical equipment, or it can be a physical equipment It integrates some functions of core network equipment and some functions of wireless access network equipment. Terminals and wireless access network devices may be connected to each other in a wired or wireless manner.
  • FIG. 1 is only a schematic diagram.
  • the communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG. 1 .
  • Wireless access network equipment can be a base station (base station), an evolved base station (evolved NodeB, eNodeB), a transmission reception point (transmission reception point, TRP), a fifth generation (5th generation, 5G) mobile
  • the next generation base station (next generation NodeB, gNB) in the communication system, the next generation base station in the sixth generation (6th generation, 6G) mobile communication system, the base station in the future mobile communication system or the access node in the WiFi system, etc.; It may also be a module or unit that completes some functions of the base station, for example, it may be a centralized unit (central unit, CU) or a distributed unit (distributed unit, DU).
  • the CU here completes the functions of the radio resource control protocol and the packet data convergence layer protocol of the base station, and can also complete the function of the service data adaptation protocol (SDAP); the DU completes the radio link control layer and medium access of the base station
  • the function of the control layer can also complete the functions of part or all of the physical layer.
  • the radio access network device may be a macro base station (such as 110a in Figure 1), a micro base station or an indoor station (such as 110b in Figure 1), or a relay node or a donor node.
  • the embodiment of the present application does not limit the specific technology and specific equipment form adopted by the radio access network equipment.
  • a base station is used as an example of a radio access network device for description below.
  • a terminal may also be called terminal equipment, UE, mobile station, mobile terminal, and the like.
  • Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things ( internet of things, IOT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearables, smart transportation, smart city, etc.
  • Terminals can be mobile phones, tablet computers, computers with wireless transceiver functions, wearable devices, vehicles, airplanes, ships, robots, robotic arms, smart home devices, etc.
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the terminal.
  • Base stations and terminals can be fixed or mobile. Base stations and terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and artificial satellites.
  • the embodiments of the present application do not limit the application scenarios of the base station and the terminal.
  • the helicopter or UAV 120i in FIG. base station for base station 110a, 120i is a terminal, that is, communication between 110a and 120i is performed through a wireless air interface protocol.
  • communication between 110a and 120i may also be performed through an interface protocol between base stations.
  • 120i compared to 110a, 120i is also a base station. Therefore, both the base station and the terminal can be collectively referred to as a communication device, 110a and 110b in FIG. 1 can be referred to as a communication device with a base station function, and 120a-120j in FIG. 1 can be referred to as a communication device with a terminal function.
  • the communication between the base station and the terminal, between the base station and the base station, and between the terminal and the terminal can be carried out through the licensed spectrum, the communication can also be carried out through the unlicensed spectrum, and the communication can also be carried out through the licensed spectrum and the unlicensed spectrum at the same time; Communications may be performed on frequency spectrums below megahertz (gigahertz, GHz), or communications may be performed on frequency spectrums above 6 GHz, or communications may be performed using both frequency spectrums below 6 GHz and frequency spectrums above 6 GHz.
  • the embodiments of the present application do not limit the frequency spectrum resources used for wireless communication.
  • the functions of the base station may also be performed by modules (such as chips) in the base station, or may be performed by a control subsystem including the functions of the base station.
  • the control subsystem including base station functions here may be the control center in the above application scenarios such as smart grid, industrial control, intelligent transportation, and smart city.
  • the functions of the terminal may also be performed by a module (such as a chip or a modem) in the terminal, or may be performed by a device including the terminal function.
  • the time-domain symbols may be Orthogonal Frequency Division Multiplexing (OFDM) symbols, or Discrete Fourier Transform-spread-OFDM (Discrete Fourier Transform-spread-OFDM, DFT -s-OFDM) symbol.
  • OFDM Orthogonal Frequency Division Multiplexing
  • Discrete Fourier Transform-spread-OFDM Discrete Fourier Transform-spread-OFDM, DFT -s-OFDM
  • the symbols in the embodiments of the present application refer to time-domain symbols.
  • the base station sends a downlink signal or downlink information to the terminal, and the downlink information is carried on the downlink channel;
  • the terminal sends an uplink signal or uplink information to the base station, and the uplink information is carried on the uplink channel.
  • the terminal needs to establish a wireless connection with the cell controlled by the base station.
  • a cell with which a terminal has established a wireless connection is called a serving cell of the terminal.
  • the terminal communicates with the serving cell, it will also be interfered by signals from neighboring cells.
  • PDSCH, PDCCH, PUCCH, and PUSCH are only used as examples of downlink data channels, downlink control channels, uplink control channels, and uplink data channels respectively.
  • the data channel and the control channel may have different names, which is not limited in this embodiment of the present application.
  • PCell Primary cell
  • the primary cell is a cell that works on a primary frequency (primary frequency).
  • the terminal device initiates an initial connection establishment process on the PCell, or initiates a connection re-establishment process.
  • PCell may also be assigned during handover.
  • SCell For a terminal device configured with carrier aggregation (CA), the secondary cell is a cell that provides additional radio resources in addition to the primary cell.
  • CA carrier aggregation
  • a network device may indicate to activate and deactivate the SCell through signaling.
  • activating the SCell means that the terminal device can perform data transmission on the SCell configured by the network device; deactivating the SCell means that the terminal device can no longer perform data transmission on the SCell.
  • PUCCH secondary cell The secondary cell configured with PUCCH. Only when PUCCH parameters are configured on a certain cell (for example, PCell or SCell), the PUCCH can be transmitted on the cell.
  • PUCCH group Cells in which the HARQ-ACK corresponding to the PDSCH on each cell in a cell group can be transmitted on the same cell form a PUCCH group.
  • the PUCCH group can include a primary PUCCH group and a secondary PUCCH group.
  • the uplink control information in the primary PUCCH group such as HARQ-ACK, can be sent on the PCell.
  • the uplink control information in the secondary PUCCH group, such as Both HARQ-ACK can be sent on PUCCH SCell.
  • PUCCH switch secondary cell PUCCH switch secondary cell, PUCCH-sSCell:
  • PUCCH switch secondary cell PUCCH-sSCell:
  • PUCCH group in addition to the PUCCH PCell or PUCCH SCell, another cell that can transmit the PUCCH.
  • PUCCH cell handover means that within a PUCCH group, for example, within a primary PUCCH group, the PUCCH can be sent on the PCell or the PUCCH-sSCell.
  • PUCCH can be sent on PUCCH SCell or PUCCH-sSCell.
  • the PUCCH SCell can be replaced by PCell for description.
  • the DCI includes the timing indicator (timing indicator) field from PDSCH to hybrid automatic repeat request (HARQ) feedback, which is used to indicate the PDSCH and the PUCCH carrying the HARQ-ACK feedback information corresponding to the PDSCH.
  • the time slot offset value which is also called the K1 value.
  • candidate values of the K1 value indicated by the DCI form a K1 set.
  • the K1 set can be predefined by the protocol or configured through RRC signaling.
  • the K1 set of DCI format 1_0 is ⁇ 1, 2, 3, 4, 5, 6, 7, 8 ⁇ , a total of 8 values, and 3 bits can be used to indicate a specific K1 value.
  • TS technical specification
  • the network device indicates the current scheduling information of the terminal device through the PDCCH.
  • the terminal device When the terminal device is identified as an SPS, it saves the current scheduling information and performs the scheduling at the same time-frequency resource position every fixed period. Sending or receiving business data.
  • SPS transmission through one grant, it can be used periodically, so that the PDCCH resources used for scheduling instructions can be effectively saved.
  • the HARQ-ACK PUCCH corresponding to the SPS data is sent on the PCell or PUCCH SCell.
  • the DCI on slot 0 schedules a PDSCH, and the PDSCH is also in slot 0.
  • K1 is equal to 1
  • the PUCCH carrying the HARQ-ACK information bits is in slot 1 (slot 0+K1).
  • This PUCCH can be understood as a dynamically scheduled PUCCH because it is also indicated by DCI.
  • the DCI on slot 0 can also activate the SPS (at this time, the "DCI” can also be understood as "the DCI that activates the SPS").
  • SPS PDSCH SPS opportunity after a period of time (for example, SPS cycle).
  • the network device can send the PDSCH without sending another DCI for the PDSCH. Then, for the time domain position of the PUCCH carrying the HARQ-ACK of the SPS PDSCH, the terminal device can determine the HARQ carrying HARQ through the same K1 value. - The time domain location of the PUCCH for the ACK. As shown in Figure 2, it is assumed that the terminal device receives the PDSCH of the SPS on slot 3. Since the value of K1 is 1, the terminal device determines that the time domain position of the PUCCH carrying the HARQ-ACK of the PDSCH of the SPS is slot 4 (slot 3+K1) on the PCell.
  • Figure 2 shows the situation where only 1-bit HARQ-ACK information needs to be fed back in one time slot.
  • the terminal device needs to feed back the HARQ-ACK information for the received PDSCH, no matter which cell it is in or which HARQ-ACK process it is, that is, to tell the network device whether it has received the PDSCH correctly. If the HARQ-ACK information bit is 0, it means NACK, and if it is 1, it means ACK. For example, it may be sent to the network device through the PUCCH on the PCell.
  • the number of information bits of the HARQ-ACK will increase.
  • multiple HARQ-ACK information bits constitute a HARQ-ACK codebook.
  • Each bit in the HARQ-ACK codebook respectively indicates the HARQ-ACK information of the corresponding DCI or PDSCH, and the HARQ-ACK information indicates whether the corresponding DCI or PDSCH is correctly received by the terminal device.
  • the HARQ-ACK codebook can be divided into the following three types: type 1 codebook, type 2 codebook and type 3 codebook. The following mainly introduces the type 1 codebook.
  • the terminal device can generate a type 1 codebook according to the K1 set.
  • the dotted box in FIG. 3 is the position of a candidate PDSCH (candidate PDSCH), which can also be understood as a position where PDSCH transmission may be performed (the candidate PDSCH may also be an SPS PDSCH).
  • the terminal device performs HARQ-ACK bit feedback for the PDSCH (which can be understood as a real ACK or NACK); if the network device No PDSCH is scheduled on the candidate PDSCH positions, and NACKs are filled in these candidate PDSCH positions. From the perspective of the terminal device, if the PDSCH is successfully parsed, an ACK is sent; otherwise (including the PDSCH parsing fails, and DCI is not detected), a NACK is sent.
  • the codebook size of the HARQ-ACK is 6 bits.
  • the bit order of the 6-bit HARQ-ACK codebook may be first sorted according to the cell index, for example, PCell is ranked first, SCell is ranked last, and then sorted according to the order of candidate PDSCHs, and the previous candidate PDSCHs are ranked first.
  • Figure 3 it can be in the order of ⁇ A, B, C, D, E, F ⁇ , that is, the 6-bit codebook is ⁇ 0, X, 0, Y, 0, 0 ⁇ , and X corresponds to It is the dynamically scheduled PDSCH in the solid line box in position B, and Y corresponds to the SPS PDSCH in the solid line box in position D.
  • the codebook at this time is ⁇ 0, 0, 0, 1, 0, 0 ⁇ ; for another example, If the terminal device can successfully parse the dynamically scheduled PDSCH at position B and the PDSCH of the SPS at position D, the codebook at this time is ⁇ 0, 1, 0, 1, 0, 0 ⁇ .
  • the PUCCH carrying HARQ-ACK is sent on a fixed cell (for example, PCell) by default.
  • the PUCCH cannot be sent (for example, when the time domain position of the PUCCH overlaps with the downlink symbol )
  • the PUCCH can only be postponed to the next time slot, which will increase the delay. Therefore, in order to solve this problem, Rel-17 introduces the feature of PUCCH cell switching.
  • the terminal device determines the value of K1 according to the K1 set of PCell; when the cell indication field in DCI indicates to send PUCCH on PUCCH-sSCell, the terminal device determines the value of K1 according to The K1 set of PUCCH-sSCell is used to determine the value of K1.
  • the DCI on slot 0 indicates that HARQ-ACK is sent on the PUCCH of PCell (that is, the cell indication field indicates PCell), and the feedback timing from PDSCH to HARQ-ACK in the DCI indicates the field
  • the bit value is "00".
  • the set of K1 in the PCell is ⁇ 1, 2 ⁇ , it indicates that the value of K1 is "1”. It can also be understood as sending HARQ-ACK on the PUCCH of slot 1 (slot 0+K1) on the PCell.
  • the DCI on slot 1 indicates that HARQ-ACK is sent on the PUCCH of PUCCH-sSCell (that is, the cell indication field indicates PUCCH-sSCell), and the bit value of the feedback timing indication field from PDSCH to HARQ-ACK in DCI is " 01".
  • the set of K1 in the PUCCH-sSCell is ⁇ 2, 3, 4, 5 ⁇ , it indicates that the value of K1 is "3". It can also be understood as sending HARQ-ACK on the PUCCH of slot 4 (slot 1+K1) on the PUCCH-sSCell.
  • the terminal device is based on the K1 set configured on the PUCCH-sSCell To determine the value of K1.
  • the time domain position of the PUCCH carrying the HARQ-ACK of the SPS PDSCH will follow the value of K1 indicated in the DCI of the activated SPS.
  • the value of K1 will be used. For example, as shown in Figure 5, assuming that the terminal device receives the PDSCH of the SPS on slot 4, the terminal device determines that the PUCCH carrying the HARQ-ACK of the PDSCH of the SPS is in slot 7 (slot 4+K1) of the PCell.
  • the HARQ-ACK bits of the semi-persistently scheduled PDSCH may not be included in the HARQ-ACK codebook.
  • the time domain position of the PUCCH carrying the HARQ-ACK information of the semi-persistently scheduled PDSCH determined by the terminal device may be invalid, thereby affecting the performance of data transmission.
  • the first cell in the following embodiments may be a PUCCH-sSCell, and the second cell may be a PCell or a PUCCH-SCell.
  • the SCell in the following embodiments of this application can be understood as the PUCCH-sSCell introduced above; the PCell mentioned in the following embodiments of this application, if it is in the main PUCCH group, can be understood as a PCell, If it is in the secondary PUCCH group, the PCell can be understood as a PUCCH-SCell.
  • the present application provides a hybrid automatic repeat request confirmation HARQ-ACK method and device, which can ensure that the time domain position of the PUCCH carrying the HARQ-ACK determined by the terminal device is valid, thereby ensuring the performance of data transmission.
  • FIG. 6 is a schematic flow chart of a hybrid automatic repeat request acknowledgment HARQ-ACK method 600 provided by the present application. The method includes:
  • Step 601 the network device sends DCI to the terminal device.
  • the terminal device receives the DCI.
  • the network device may send the DCI to the terminal device through the PDCCH.
  • the DCI can be used to schedule downlink data, and the scheduling here can also be understood as dynamic scheduling.
  • the dynamically scheduled downlink data can be carried by PDSCH.
  • the DCI may include first indication information, the first indication information instructs the terminal device to send the first HARQ-ACK information through the first PUCCH on the first cell, and the first HARQ-ACK information is the HARQ information corresponding to the downlink data scheduled by the DCI. -ACK information.
  • the first indication information here may also be referred to as a cell indication field.
  • the DCI can also be used to activate the SPS, and it can also be understood that the DCI is the DCI for activating the SPS.
  • the DCI may further include second indication information, where the second indication information indicates a first value, the first value is a value in the first set, and the second set also includes the first value.
  • the first set belongs to the first cell
  • the first cell may be PUCCH-sSCell
  • the first set may be the K1 set on PUCCH-sSCell
  • the second set belongs to the second cell
  • the second cell may be PCell or PUCCH SCell
  • the second set may be: K1 set on PCell or PUCCH SCell.
  • the value in the first set indicates the time slot offset value between the PDSCH carrying downlink data and the first PUCCH carrying the first HARQ-ACK information
  • the value in the second set indicates the PDSCH carrying SPS data and the time slot offset value carrying The time slot offset value between the second PUCCHs of the second HARQ-ACK information.
  • the second HARQ-ACK information is HARQ-ACK information corresponding to the SPS data.
  • the length of a slot in this application can be 14 symbols, 7 symbols or 2 symbols.
  • the time slot may also be called a sub-slot.
  • the time slot between the PDSCH and the PUCCH can be determined according to the time slot length of the cell #b offset.
  • the K1 set of cell #b is ⁇ 2, 3, 4, 5 ⁇
  • this value indicates that the PDSCH carrying downlink data and the PDSCH carrying the first HARQ-ACK information
  • the slot offset value between one PUCCH is 2 slots.
  • the time slot offset value can be understood as: the last time slot in cell #b that overlaps with the time slot where the PDSCH is located ("slot 1" ), and the time slot offset value between the time slot where the PUCCH is located ("slot 3").
  • the time slot offset value can be understood as: the first time slot ("slot 0" overlapping with the PDSCH end symbol in cell #b ), and the time slot offset value between the time slot where the PUCCH is located ("slot 2").
  • the subcarrier spacing of the cell where the PDSCH is located is the same as the subcarrier spacing of the cell where the PUCCH is located.
  • the technical solutions involved in this application can all be applied to In a scenario where the subcarrier spacing of the cell and the subcarrier spacing of the cell where the PUCCH is located are different.
  • the time slot offset determined by the value of K1 can be determined according to the subcarrier spacing of the cell where the PUCCH is located. In other words, which cell the PUCCH is on, the time slot offset is determined according to the subcarrier spacing of the cell.
  • the second indication information indicates the first value in the first set, namely: The first value is "2"; for another example, if the second indication information is "11", then the fourth value in the second set indicated by the second indication information, that is, the first value is "5".
  • the first value in the first set indicated by the second indication information of the network device is not indicated arbitrarily, and the second set also needs to include the first value.
  • the first set is ⁇ 2, 3, 4, 5 ⁇ , and the second set is ⁇ 1, 2 ⁇ .
  • the first value should be "2", and the second indication information is "00".
  • the first value in the first set indicated by the second indication information also includes the first value in the second set. If the value in the first set indicated by the second indication information is not "2" (or, the bit value of the second indication information is not "00"), for example, when the second indication information is "11", at this time, the first The value is "5".
  • the terminal device When the terminal device receives the second indication information, it will confirm the indication information as wrong indication information (also can be understood as "illegal value”). At this point, the terminal device will consider this to be an error case.
  • the terminal may discard the second indication information, or discard downlink control information, or not discard downlink control information, but not receive semi-persistently scheduled data.
  • the first value in the first set indicated by the second indication information that the terminal device does not expect to receive is not included in the second set.
  • the terminal device does not expect the K1 value indicated in the activated DCI to be a value that does not belong to the intersection of the first set and the second set.
  • the terminal device does not expect the SPS to activate the DCI to indicate the time slot timing value used to transmit the HARQ-ACK information, the time slot timing value set of the activated downlink (downlink, DL)-BWP that does not belong to the Pcell and the PUCCH-sSCell The intersection of the set of slot timing values of the activated DL-BWP.
  • the DCI and the PDSCH scheduled by the DCI may be on any cell, which is not limited.
  • the network device may send DCI on the first cell or the second cell; the first PDSCH scheduled by the DCI may be on the first cell or on the second cell; the DCI activation
  • the second PDSCH of the SPS may be on the first cell or on the second cell.
  • step 602 the network device may also send the first PDSCH to the terminal device, where the first PDSCH is a PDSCH dynamically scheduled by the DCI.
  • the terminal device receives the dynamically scheduled first PDSCH.
  • step 603 is further included, the terminal device determines the time domain position of the first PUCCH carrying the first HARQ-ACK information according to the first value.
  • the terminal device determines the bearer The time domain position of the first PUCCH of the first HARQ-ACK information is slot 2.
  • step 604 is also included, in the first cell, the terminal device sends the first HARQ-ACK information through the first PUCCH.
  • step 605 is also included, the network device receives the first PUCCH carrying the first HARQ-ACK information on the first cell.
  • the number of time slots between the time domain position of the second PUCCH and the PDSCH carrying the SPS data is the first value.
  • the time slot offset value between the PDSCH carrying downlink data and the first PUCCH carrying the first HARQ-ACK information is the first value.
  • the network device to determine the time domain position of the first PUCCH, reference may be made to the description of step 610 below.
  • the method 600 further includes step 606, where the network device sends a second PDSCH to the terminal device, where the second PDSCH may be a PDSCH of the SPS.
  • the terminal device receives the second PDSCH of the SPS.
  • Step 607 the terminal device determines the time domain position of the second PUCCH carrying the second HARQ-ACK information according to the first value.
  • the terminal device receives the second PDSCH of the SPS on slot 4, if the second indication information is "01" and the first value is "3", at this time, the terminal device determines the bearer
  • the time domain position of the second PUCCH of the second HARQ-ACK information is slot 7.
  • the time slot on which the terminal device receives the PDSCH of the SPS may be pre-configured by the network device.
  • the network device sends configuration information to the terminal device, and the configuration information is used to configure the SPS cycle (for example, the terminal device receives the first SPS interval of several time slots) Two PDSCH), configure the second PUCCH carrying SPS HARQ-ACK (for example, the format of the PUCCH, the number of symbols, etc.) and the like.
  • Step 609 the terminal device sends second HARQ-ACK information through the second PUCCH on the second cell.
  • Step 610 the network device receives the second PUCCH carrying the second HARQ-ACK information on the second cell.
  • the time slot offset value between the second PDSCH carrying the SPS data and the second PUCCH carrying the second HARQ-ACK information is the first value.
  • the network device may first determine the first value, and then determine the time domain position of the second PUCCH according to the first value.
  • the network device may first determine a time slot for receiving the second PUCCH according to service delay requirements, available resources, etc. (for example, for an emergency service, the network device may schedule a time slot for receiving the second PUCCH The resources of the time slot receive the second PUCCH), and then determine whether the scheduled time slot satisfies the requirement of the first value. If the time slot meets the requirements of the first value, the network device can use the scheduled time slot to receive the second PUCCH; otherwise, the network device can reschedule the resource of a certain time slot to finally determine the time domain for receiving the second PUCCH Location.
  • sending the DCI to the terminal device through the PDCCH can also be understood as that the DCI is carried on the PDCCH.
  • sending the first HARQ-ACK information through the first PUCCH can also be understood as the first HARQ-ACK information is carried on the first PUCCH;
  • sending the second HARQ-ACK information through the second PUCCH can also be understood For, the second PUCCH carries the second HARQ-ACK information.
  • the DCI sent by the network device to the terminal device is also used to schedule downlink data while activating the semi-persistent scheduling.
  • the timing offset value from the PDSCH to the HARQ feedback indicated by the DCI can also indicate the data corresponding to the semi-persistent scheduling.
  • the timing offset value belongs to both the K1 set in the first cell and the K1 set in the second cell.
  • the time domain position of the PUCCH carrying the HARQ-ACK information corresponding to the semi-persistently scheduled data determined by the terminal device can be valid, that is, the HARQ-ACK codebook on the second cell can include the semi-persistently scheduled
  • the HARQ-ACK bit of the PDSCH enables timely feedback of the HARQ-ACK information corresponding to the semi-persistently scheduled data, ensuring the transmission performance of the semi-persistently scheduled data.
  • the present application also provides a communication method 800.
  • a communication method 800 For a schematic block diagram of the method 800, refer to FIG. 6 .
  • the DCI in this embodiment may refer to the description of DCI in method 600.
  • the difference is that the DCI in this embodiment does not include the second indication information, but the DCI may include
  • the third instruction information, the method includes:
  • Step 801 the network device sends DCI to the terminal device.
  • the terminal device receives the DCI.
  • the DCI may include third indication information (for example, a timing indication field between PDSCH and HARQ-ACK), where the third indication information indicates the value in the first set and the value in the second set.
  • third indication information for example, a timing indication field between PDSCH and HARQ-ACK
  • the third indication information may indicate a value in the first set, or may indicate a value in the second set.
  • the first set is ⁇ 2, 3, 4, 5 ⁇
  • the second set is ⁇ 1, 2 ⁇
  • the bit value of the third indication information is "01"
  • the third The value indicated by the indication information is "3"
  • the value indicated by the third indication information is "2"
  • this application proposes the following two implementation methods:
  • Mode 1 It can be stipulated in the agreement that in the second set, no matter what the bit value of the third indication information is, a value can always be indicated in the second set. Therefore, the third indication information can indicate valid values in the second set.
  • the bit value of the third indication information is "11", at this time in the first set, the value indicated by the third indication information is "5"; in the second set, it can be agreed that "11 " indicates the first value in the second set (eg, "1"), or, by protocol convention, "11" indicates the second value in the second set (eg, "2").
  • the bit value of the third indication information is "10”
  • the values in the second set can be repeated to obtain a second set of the same size as the first set, for example, the second set becomes ⁇ 1, 1, 2, 2 ⁇ or ⁇ 1, 2, 1 , 2 ⁇ or ⁇ 1, 2, 1, 1 ⁇ etc.
  • Mode 2 The network device may predetermine the first set and the second set which contain fewer values. Assume that the first set is ⁇ 2, 3, 4, 5 ⁇ , and the second set is ⁇ 1, 2 ⁇ . At this point, the second set contains a smaller number of values. At this time, the network device may determine that when sending the third indication information, the indication value of the third indication information will not be invalid in the second set. In other words, those skilled in the art design the bit values of the third indication information according to indicating two values instead of indicating four values.
  • the bit value of the third indication information sent by the network device may include “00” and “01”, and the bit value of the third indication information may not appear “00", “01”, “10” and “11” ” indicates a design for four values. That is, the network device guarantees that the third indication information will definitely indicate a value in the second set.
  • the PDSCH to HARQ-ACK feedback timing indication field in the DCI indicates two K1 values, one is the value in the K1 set in the PUCCH-sSCell, and the other is the K1 set in the PCell value in . Therefore, the third indication information can also indicate valid values in the second set. It can also be understood that, in this embodiment, the terminal device does not expect the third indication information to have an indication exceeding the value included in the second set. Or it can be understood that the UE does not expect the third indication information to exceed the scope of the second set.
  • the DCI and the PDSCH scheduled by the DCI may be on any cell, which is not limited.
  • the network device can send DCI on the first cell or on the second cell; the PDSCH scheduled by the DCI can be on the first cell or on the second cell; the SPS activated by the DCI The PDSCH can be on the first cell or on the second cell.
  • step 802 is also included, the network device sends the first PDSCH to the terminal device, and the first PDSCH may be a PDSCH dynamically scheduled by the DCI.
  • the terminal device receives the dynamically scheduled first PDSCH.
  • step 803 is further included, the terminal device determines the time domain position of the first PUCCH carrying the first HARQ-ACK information according to the third indication information.
  • the terminal device may determine the time domain position of the first PUCCH based on the third indication information and the first set. As an example, as shown in Figure 8, assuming that the third indication information is "00", the first set is ⁇ 2, 3, 4, 5 ⁇ , assuming that the terminal device receives the PDSCH scheduled by DCI on slot 0, then the terminal device It may be determined that the time domain position of the first PUCCH is slot 2.
  • step 804 is also included, the terminal device sends the first HARQ-ACK information through the first PUCCH on the first cell.
  • the terminal device sends the first HARQ-ACK information through the first PUCCH on the PUCCH-sSCell.
  • step 805 is also included, the network device receives the first PUCCH carrying the first HARQ-ACK information on the first cell.
  • the number of time slots between the time domain position of the first PUCCH and the PDSCH carrying downlink data is the value indicated by the third indication information.
  • the time domain position of the first PUCCH and the number of time slots between the time domain position of the first PUCCH and the PDSCH carrying downlink data are values in the first set indicated by the third indication information.
  • the network device determines the time domain position of the first PUCCH reference may be made to step 609 in the method 600, which will not be repeated here.
  • Step 806 the network device sends a second PDSCH to the terminal device, where the second PDSCH may be the PDSCH of the SPS.
  • the terminal device receives the second PDSCH of the SPS.
  • Step 807 the terminal device determines the time domain position of the second PUCCH carrying the second HARQ-ACK information and determines the time domain position of the first PUCCH carrying the first HARQ-ACK information according to the third indication information.
  • the terminal device may determine the time domain position of the second PUCCH based on the third indication information and the second set. As an example, as shown in Figure 8, assuming that the third indication information is "00" and the second set is ⁇ 1, 2 ⁇ , assuming that the terminal device receives the PDSCH of the SPS on slot 4, the terminal device can determine the second PUCCH The time domain location of is slot 5.
  • step 808 may also be included, where the network device sends configuration information to the terminal device. Specifically, reference may be made to step 608 in method 600 .
  • Step 809 the terminal device sends second HARQ-ACK information through the second PUCCH on the second cell.
  • the terminal device sends the second HARQ-ACK information through the second PUCCH on the PCell.
  • Step 810 the network device receives the second PUCCH carrying the second HARQ-ACK information on the second cell.
  • the number of time slots between the time domain position of the second PUCCH and the PDSCH carrying the SPS data is the value indicated by the third indication information.
  • the number of time slots between the time domain position of the second PUCCH and the PDSCH carrying the SPS data is the value in the second set indicated by the third indication information.
  • the DCI sent by the network device to the terminal device is used to schedule downlink data while activating the semi-persistent scheduling.
  • the timing offset value from the PDSCH to the HARQ feedback indicated by the DCI can be In the K1 set of the second cell, indicate the time domain position of the PUCCH carrying the HARQ-ACK corresponding to the semi-persistently scheduled data, and indicate the time domain position of the PUCCH carrying the HARQ-ACK corresponding to the above-mentioned downlink data in the K1 set of the first cell .
  • the time domain position of the PUCCH carrying the HARQ-ACK information corresponding to the semi-persistently scheduled data determined by the terminal device can be valid, that is, the HARQ-ACK codebook on the second cell can include the semi-persistently scheduled
  • the HARQ-ACK bit of the PDSCH enables timely feedback of the HARQ-ACK information corresponding to the semi-persistently scheduled data, ensuring the transmission performance of the semi-persistently scheduled data.
  • the method 600 and the method 800 provided in this application may also be applied in the following scenarios.
  • the DCI of activating the SPS indicates that the first PUCCH carrying the HARQ-ACK of downlink data is sent on the PUCCH-sSCell, and the second PUCCH carrying the SPS HARQ-ACK is also sent on the PUCCH-sSCell. That is, in this scenario, the PUCCH of the downlink data and the PUCCH of the SPS can both be sent on the PUCCH-sSCell.
  • the network device instructs to "deactivate” the PUCCH-sSCell ("deactivate the PUCCH-sSCell" can be understood as: the network device instructs the terminal device not to perform data transmission on the PUCCH-sSCell), at this time, the SPS HARQ-ACK The second PUCCH will be on PCell.
  • the above methods 600 and 800 are also applicable.
  • the network device after the network device sends the "deactivate" PUCCH-sSCell indication, it needs to determine the current K1 value, for example, whether the current K1 value is the K1 value provided in method 600 or method 800, if the K1 value is the K1 value determined by method 600 or method 800 of this application, then the network device can receive the PUCCH of SPS HARQ-ACK by method 600 or method 800 of this application; if the K1 value is not K1 determined by method 600 and method 800 of this application value, the network device sends the "deactivation" PUCCH-sSCell indication, and at the same time, it can resend the indication information to indicate the value of K1, which is used to determine the time domain position of the PUCCH of SPS HARQ-ACK.
  • the terminal device receives DCI on slot 0 of the PCell, the DCI is the DCI for activating the SPS, and the DCI indicates that the bearer downlink data is sent on the PUCCH-sSCell
  • the first PUCCH of the HARQ-ACK and the second PUCCH carrying the SPS HARQ-ACK are also in the PUCCH-sSCell.
  • the PDSCH to HARQ-ACK feedback timing indication field in the DCI is "00"
  • the K1 set of the PUCCH-sSCell the value of K1 is "2".
  • the terminal device determines, according to the value of K1, the first PUCCH for sending the HARQ-ACK carrying downlink data on slot 2 of the PUCCH-sSCell. Assuming that the terminal device receives the SPS PDSCH on slot 4 of the PCell, the terminal device determines the first PUCCH for sending HARQ-ACK carrying downlink data on slot 6 of the PUCCH-sSCell according to the K1 value. Assuming that the network device indicates to deactivate the PUCCH-sSCell on slot 7, because the current K1 value is also included in the K1 set of the PCell, the network device can receive the HARQ-ACK bit of the SPS on the slot 0 of the PCell.
  • the network device sends "deactivation "After PUCCH-sSCell, receive SPS HARQ-ACK bits on PCell.
  • a K1 value can also be indicated in the PCell set, for example, the K1 value is 1, therefore, After the network device sends the "deactivation" PUCCH-sSCell, it can receive SPS HARQ-ACK bits on slot 9 of the PCell.
  • the network device sends the "deactivation" PUCCH-sSCell, it can receive SPS HARQ-ACK bits on slot 9 of the PCell.
  • the PDSCH-to-HARQ-ACK feedback timing indication field is "11”
  • the set of PCells cannot indicate the value of K1. Therefore, the network device needs to resend the indication information to indicate the value of K1 while sending the "deactivation" PUCCH-sSCell indication.
  • this application also considers that after the terminal device determines the time domain position of sending the second PUCCH on the second cell according to the schemes of methods 600 and 800 of this application, if the time domain position of the second PUCCH on the PCell at this time It overlaps with the downlink symbol, or the symbol used to transmit the synchronization signal block (SSB), or the control-resource set (CORESET) symbol associated with the PDCCH common search space of type 0, and the second PUCCH cannot be sent , in this scenario, the terminal device may discard the PUCCH on the second cell (because it overlaps with the downlink symbol). Specifically, the following implementation manners may be adopted for the terminal device to discard the second PUCCH on the second cell.
  • SSB synchronization signal block
  • CORESET control-resource set
  • the SPS HARQ-ACK PUCCH is on the second cell, on the type 1 codebook of the first cell, there may be a HARQ-ACK bit position corresponding to the SPS candidate PDSCH, or there may be no SPS candidate PDSCH
  • the corresponding HARQ-ACK bit position (specifically, on the type 1 codebook of the first cell, whether there may be a HARQ-ACK bit position corresponding to the candidate PDSCH of the SPS is at least the same as the subcarrier spacing of the first cell, the second cell It is related to the subcarrier spacing, the K1 set on the first cell, and the current K1 value, which will not be described in detail in this application).
  • discarding the second PUCCH may be implemented in the following ways:
  • the terminal device does not need to send the second PUCCH on the PCell, and the PUCCH-sSCell needs to send
  • the codebook has nothing to do with the candidate PDSCH of the SPS on the PCell, so it can be ignored.
  • the HARQ-ACK bit position corresponding to the candidate PDSCH of the SPS exists in the type 1 codebook of the PUCCH-sSCell, at this time, even if the terminal device does not send the second PUCCH on the PCell, it still needs to consider the PUCCH-sSCell
  • the HARQ-ACK bit position corresponding to the candidate PDSCH of the SPS on the type 1 codebook At this time, in the type 1 codebook of the PUCCH-sSCell, the HARQ-ACK bit position corresponding to the candidate PDSCH of the SPS can be filled with "NACK".
  • the HARQ-ACK of the SPS PDSCH should be discarded on slot 7 Second PUCCH.
  • the codebook to be sent on slot 3 of the PUCCH-sSCell includes the HARQ-ACK bit position corresponding to the PDSCH received from the SPS on slot 4 on the PCell (this is because the codebook to be sent on slot 3 of the PUCCH-sSCell
  • the codebook contains slot 0 in PUCCH-sSCell (when the value of K1 in the K1 set in PUCCH-sSCell is "3"), slot 1 (when the value of K1 in the K1 set in PUCCH-sSCell is "2") , slot 2 (when the value of K1 in the K1 set in the PUCCH-sSCell is "1") the bit position of the HARQ-ACK of the PDSCH; also includes slot 4 on the PCell (the value of K1 in the K1 set in the PCell is "" 1") of the HARQ-ACK bit position of the PDSCH of the SPS.
  • the candidate PDSCH of the SPS The corresponding HARQ-ACK bit position is filled with "NACK”.
  • the K1 corresponding to the SPS PDSCH is equal to 1.
  • the subcarrier spacing of the PCell is smaller than the subcarrier spacing of the PUCCH-sSCell, there will be multiple time slots on the PUCCH-sSCell that overlap with the time slot of the PUCCH carrying SPS HARQ-ACK on the PCell, and a slot can be agreed on by agreement. And fill "NACK" in the HARQ-ACK bit position corresponding to the SPS candidate PDSCH on the slot.
  • the K1 value on the PUCCH-sSCell corresponding to the SPS PDSCH is different from the K1 value on the PCell corresponding to the SPS PDSCH.
  • the subcarrier spacing of the PCell and the subcarrier spacing of the PUCCH-sSCell are the same, there is only one time slot on the PUCCH-sSCell that overlaps with the time slot of the PUCCH carrying SPS HARQ-ACK on the PCell.
  • the HARQ-ACK bit position corresponding to the candidate PDSCH is filled with "NACK".
  • the K1 value on the PUCCH-sSCell corresponding to the SPS PDSCH is the same as the K1 value on the PCell corresponding to the SPS PDSCH.
  • FIG. 11 is a schematic flowchart of a communication method 900 provided by the present application, and the method includes:
  • Step 901 the network device sends configuration information to the terminal device.
  • the terminal device receives configuration information.
  • the configuration information is used to configure the third PUCCH carrying the third information for the second cell, and the third PUCCH and the PUSCH overlap in the time domain.
  • “there is overlap in the time domain” may be understood as partial overlap in the time domain, or complete overlap in the time domain.
  • the third information may be, for example: SPS HARQ-ACK information, channel state information (channel state information, CSI), and scheduling request information (schedule request, SR). That is, the third PUCCH can also be understood as a semi-static PUCCH.
  • Step 902 the network device sends DCI to the terminal device.
  • the terminal device receives the DCI.
  • the network device may send the DCI to the terminal device through the PDCCH.
  • the DCI may be used for scheduling downlink data, for example, the DCI may be used for dynamically scheduling the PDSCH; for another example, the DCI may be used for BWP switching.
  • the DCI may include first indication information (for example, a cell indication field), the first indication information indicates that the terminal device sends the first HARQ-ACK information through the first PUCCH on the first cell, and the first HARQ-ACK information is downlink data Corresponding HARQ-ACK information.
  • first indication information for example, a cell indication field
  • the time domain positions of the first PUCCH and the PUSCH overlap.
  • Step 903 the network device sends the first PDSCH to the terminal device, where the first PDSCH may be a dynamically scheduled PDSCH.
  • the terminal device receives the dynamically scheduled first PDSCH.
  • Step 904 the terminal device discards the third PUCCH.
  • discarding the third PUCCH may be implemented in the following ways:
  • the terminal device does not need to send the third PUCCH on the PCell, and the PUCCH-sSCell needs to send
  • the codebook has nothing to do with the candidate PDSCH of the SPS on the PCell, so it can be ignored.
  • the HARQ-ACK bit position corresponding to the candidate PDSCH of the SPS exists in the type 1 codebook of the PUCCH-sSCell, at this time, even if the terminal device does not send the third PUCCH on the PCell, it still needs to consider the position of the PUCCH-sSCell
  • the HARQ-ACK bit position corresponding to the candidate PDSCH of the SPS on the type 1 codebook At this time, in the type 1 codebook of the PUCCH-sSCell, the HARQ-ACK bit position corresponding to the candidate PDSCH of the SPS can be filled with "NACK".
  • the HARQ-ACK bit position corresponding to the candidate PDSCH of the SPS can be filled with "NACK" in the type 1 codebook on the slot of the SCell overlapping the slot on the PCell where the SPS HARQ-ACK PUCCH is located. If there are multiple overlapping slots, one slot can be selected, and "NACK" is filled in the HARQ-ACK bit position corresponding to the SPS candidate PDSCH on the slot.
  • the terminal device in the scenario where there are PUCCHs for sending information on two cells, if the third PUCCH carrying the third information overlaps with the PUSCH in the time domain, at this time, the terminal device can The third PUCCH is discarded, so that the terminal device does not need to multiplex the control channel on the two cells (also can be understood as "cross-cell"), and then multiplex it into the corresponding PUSCH, and at the same time, it can reduce the uplink control information carried
  • the number of PUSCHs can simplify the multiplexing complexity of the terminal equipment.
  • the terminal device may discard the third PUCCH when the time domain position of the PDCCH carrying the DCI is before the time domain position of the PUSCH, and the interval between the time domain positions of the PDCCH and the PUSCH is greater than or equal to the first duration.
  • the terminal device may discard the third PUCCH .
  • the terminal device determines whether the terminal device receives the DCI successfully or not will affect whether the terminal device discards the PUCCH on the PCell. Assuming that the terminal device needs 3 symbols to parse the DCI (an example of the first duration), the terminal device needs to successfully parse the DCI before sending the PUSCH or before sending the third PUCCH.
  • the first duration in this embodiment is at least X symbols.
  • the first duration that is, the specific number of seconds for X symbols
  • N 3 represents the number of symbols (for example, X above);
  • ⁇ is 64;
  • T c 1/(4096 ⁇ 480kHz).
  • the terminal device When the time domain positions of the first PUCCH and PUSCH do not overlap, the terminal device sends the first HARQ-ACK information through the first PUCCH; when the time domain positions of the first PUCCH and PUSCH overlap, the terminal device can transmit the first HARQ-ACK information through the PUSCH A HARQ-ACK information, at this time, can also be understood as multiplexing the PUCCH onto the PUSCH.
  • the PUSCH may not overlap with the third PUCCH, that is, the network device guarantees that the PUSCH cannot overlap with the first PUCCH and the third PUCCH at the same time.
  • Step 905 on the second cell, the network device does not receive the third PUCCH.
  • the network device can determine that the terminal device will discard the third PUCCH, that is, the network device can also determine that the third information will not be multiplexed on the PUSCH. Therefore, the network device does not need blind detection when detecting the PUSCH, which reduces the detection complexity of the network device.
  • the network device cannot determine whether the terminal device will discard the third PUCCH, and the network device cannot determine whether the third information is multiplexed on the PUSCH. Therefore, when the network device detects the PUSCH, it needs to blindly detect whether the third information is multiplexed on the PUSCH, and the detection complexity is high.
  • FIG. 12 shows that in the case of the same subcarrier spacing, when the time domains of the third PUCCH and PUSCH carrying the third information of the PDSCH of the SPS overlap, after the terminal device successfully parses the DCI, The terminal device will discard the third PUCCH.
  • (b) in Figure 12 shows that in the case of different subcarrier spacing, when the time domains of the third PUCCH and PUSCH carrying the third information of the PDSCH of the SPS overlap, after the terminal device successfully parses the DCI, the terminal device will The third PUCCH is discarded.
  • the third PUCCH overlaps in the time domain with the downlink symbols configured by the network device, or the symbols used to transmit the SSB, or the CORESET symbols associated with the PDCCH common search space of type0, as shown in (a ) and (b) in Figure 12.
  • the time slot where the third PUCCH is located overlaps in the time domain with the time slot where the first PUCCH is located.
  • the PUSCH may be the PUSCH of the first cell, or the PUSCH of the second cell, or may be the PUSCH of other cells except the first cell and the second cell, which is not limited.
  • each node such as a terminal device or a network device, includes a corresponding hardware structure and/or software module for performing each function.
  • each node such as a terminal device or a network device
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.
  • the network device and the terminal include hardware structures and/or software modules corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software with reference to the units and method steps of the examples described in the embodiments disclosed in the present application. Whether a certain function is executed by hardware or computer software drives the hardware depends on the specific application scenario and design constraints of the technical solution.
  • FIG. 13 and FIG. 14 are schematic structural diagrams of possible communication devices provided by the embodiments of the present application. These communication apparatuses may be used to realize the functions of the terminal or the network device in the foregoing method embodiments, and thus also realize the beneficial effects of the foregoing method embodiments.
  • the communication device may be one of the terminals 120a-120j shown in FIG. 1, or the network device 110 or 110 shown in FIG. 1, or it may be a terminal or network A module (such as a chip) of a device.
  • the apparatus 100 may include: a transceiver unit 110 and a processing unit 120 .
  • the transceiver unit 110 is used to receive downlink control information, the downlink control information includes second indication information, the second indication information indicates the first value, and the second indication information indicates the first value.
  • One value is a value in the first set, and the second set includes the first value;
  • the processing unit 120 is used to determine the time domain position of the second PUCCH according to the first value;
  • the transceiver unit 110 is used to send the second PUCCH through the second PUCCH Two HARQ-ACK information.
  • the processing unit 120 is configured to determine the time domain position of the first PUCCH according to the first value; the transceiving unit is configured to 110, to send the first HARQ-ACK information through the first PUCCH.
  • the transceiver unit 110 is used to send downlink control information, the downlink control information includes the third indication information indicating the value in the first set and the second values in the collection.
  • the processing unit 120 is configured to determine the time domain position of the first PUCCH and the time domain position of the second PUCCH according to the third indication information; the transceiver unit 110 is configured to send the first HARQ-ACK information through the first PUCCH; the transceiver unit 110 It is used to send the second HARQ-ACK information through the second PUCCH on the second cell.
  • the processing unit 120 is configured to determine the time domain position of the first PUCCH according to the third indication information and the first set.
  • the transceiver unit 110 is used to receive configuration information, the configuration information is used to configure the third PUCCH carrying the third information for the second cell, the third PUCCH and PUSCH overlap in the time domain; the transceiver unit 110 is used to receive downlink control information, the downlink control information is used to schedule downlink data, the downlink control information includes first indication information, and the first indication information indicates that the terminal device is on the first cell Sending first HARQ-ACK information through the first PUCCH, where the first HARQ-ACK information is HARQ-ACK information corresponding to downlink data; the processing unit 120 is configured to discard the third PUCCH.
  • the processing unit 120 discards the third PUCCH.
  • the transceiver unit 110 is used to send downlink control information, the downlink control information includes second indication information, the second indication information indicates a first value, and the first value is The value in the first set, and the second set includes the first value; the processing unit 120 is used to determine the time domain position of the second PUCCH according to the first value; the transceiver unit 110 is used to receive the second HARQ- ACK information.
  • the processing unit 120 is configured to receive first HARQ-ACK information through the first PUCCH.
  • the transceiver unit 110 is used to send downlink control information, the downlink control information includes the third indication information indicating the value in the first set and the value in the second set value.
  • the processing unit 120 is configured to receive first HARQ-ACK information through the first PUCCH; the transceiving unit 110 is configured to receive second HARQ-ACK information through the second PUCCH.
  • the transceiver unit 110 is used to send configuration information, the configuration information is used to configure the third PUCCH carrying the third information for the second cell, the third PUCCH and the PUSCH There is overlap in the time domain; the transceiver unit 110 is used to send downlink control information, the downlink control information is used to schedule downlink data, the downlink control information includes first indication information, and the first indication information indicates that the terminal equipment passes the first
  • the PUCCH sends the first HARQ-ACK information, and the first HARQ-ACK information is the HARQ-ACK information corresponding to the downlink data; the processing unit is used to discard the third PUCCH.
  • the processing unit 120 does not receive the third PUCCH.
  • processing unit 110 and the transceiver unit 120 can be directly obtained by referring to the relevant descriptions in the method embodiments shown in FIG. 6 and FIG. 11 , and will not be repeated here.
  • FIG. 14 is a schematic block diagram of a communication device 200 provided by an embodiment of the present application.
  • the apparatus 200 includes: at least one processor 220 .
  • the processor 220 is coupled with the memory for executing instructions stored in the memory to send signals and/or receive signals.
  • the device 200 further includes a memory 230 for storing instructions.
  • the apparatus 200 further includes a transceiver 210, and the processor 220 controls the transceiver 210 to send signals and/or receive signals.
  • processor 220 and the memory 230 may be combined into one processing device, and the processor 220 is configured to execute the program codes stored in the memory 230 to implement the above functions.
  • the memory 230 may also be integrated in the processor 220 , or be independent of the processor 220 .
  • the transceiver 210 may include a transceiver (or a receiver) and a transmitter (or a transmitter).
  • the transceiver may further include antennas, and the number of antennas may be one or more.
  • the transceiver 210 may be a communication interface or an interface circuit.
  • the transceiver 210 in the device 200 may correspond to the transceiver unit 110 in the device 100
  • the processor 220 in the device 200 may correspond to the processing unit 120 in the device 100 .
  • the terminal chip When the communication device 200 is a chip applied to a terminal, the terminal chip implements the functions of the terminal in the above method embodiment.
  • the terminal chip receives information from other modules in the terminal (such as radio frequency modules or antennas), and the information is sent to the terminal by the network device; or, the terminal chip sends information to other modules in the terminal (such as radio frequency modules or antennas), This information is sent by the terminal to the network device.
  • the network equipment module implements the functions of the network equipment in the above method embodiments.
  • the network device module receives information from other modules in the network device (such as radio frequency modules or antennas), and the information is sent to the network device by the terminal; or, the network device module sends information to other modules in the network device (such as radio frequency modules or antennas) ) to send information, which is sent by the network device to the terminal.
  • the network device module here may be a baseband chip of the network device, or a DU or other modules, and the DU here may be a DU under an open radio access network (O-RAN) architecture.
  • OF-RAN open radio access network
  • the present application also provides a computer program product, the computer program product stores computer program code, and when the computer program code is run on the computer, the computer executes method 600 and method 800 .
  • the present application also provides a computer-readable medium, the computer-readable medium stores program code, and when the program code is run on the computer, the computer is made to execute method 600, method 800,
  • the method 900 is the method executed by the terminal device in any one of the embodiments; or, the computer is made to execute the method executed by the network device in any one of the method 600 , the method 800 , and the method 900 embodiments.
  • the present application also provides a communication system, which includes a terminal device and a network device, the terminal device is used to execute the method 600, and the network is used to execute the method 600; or, the terminal device is used to The method 800 is executed, and the network is used to execute the method 800; or, the terminal device is used to execute the method 900, and the network is used to execute the method 900.
  • a communication system which includes a terminal device and a network device, the terminal device is used to execute the method 600, and the network is used to execute the method 600; or, the terminal device is used to The method 800 is executed, and the network is used to execute the method 800; or, the terminal device is used to execute the method 900, and the network is used to execute the method 900.
  • the processor in the embodiments of the present application can be a central processing unit (Central Processing Unit, CPU), and can also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application-specific integrated circuits (Application Specific Integrated Circuit, ASIC), Field Programmable Gate Array (Field Programmable Gate Array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof.
  • a general-purpose processor can be a microprocessor, or any conventional processor.
  • the method steps in the embodiments of the present application may be implemented in hardware, and may also be implemented in software instructions executable by a processor.
  • Software instructions can be composed of corresponding software modules, and software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only Memory, registers, hard disk, removable hard disk, CD-ROM or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium.
  • a storage medium may also be an integral part of the processor.
  • the processor and storage medium can be located in the ASIC.
  • the ASIC can be located in a network device or a terminal. Processors and storage media may also exist in network devices or terminals as discrete components.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product comprises one or more computer programs or instructions. When the computer program or instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are executed in whole or in part.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, network equipment, user equipment, or other programmable devices.
  • the computer program or instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program or instructions may be downloaded from a website, computer, A server or data center transmits to another website site, computer, server or data center by wired or wireless means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrating one or more available media.
  • the available medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; it may also be an optical medium, such as a digital video disk; or it may be a semiconductor medium, such as a solid state disk.
  • the computer readable storage medium may be a volatile or a nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

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Abstract

Des modes de réalisation de la présente invention concernent un procédé et un appareil de renvoi d'informations HARQ-ACK. Des DCI envoyées à un dispositif terminal par un dispositif de réseau sont également utilisées pour planifier dynamiquement des données de liaison descendante tout en activant une planification semi-persistante. Une valeur de décalage de synchronisation indiquée par les DCI et renvoyée à une HARQ par un PDSCH peut simultanément indiquer une position de domaine temporel d'un PUCCH contenant des informations HARQ-ACK correspondant à des données de planification semi-persistante ainsi qu'une position de domaine temporel d'un PUCCH contenant des informations HARQ-ACK correspondant aux données de liaison descendante. Au moyen de la solution, la position de domaine temporel, déterminée par le dispositif terminal, du PUCCH contenant les informations HARQ-ACK correspondant aux données de planification semi-persistante peut être valide, de telle sorte que les informations HARQ-ACK correspondant aux données de planification semi-persistante peuvent être renvoyées à temps, et les performances de transmission des données de planification semi-persistante sont garanties.
PCT/CN2023/071292 2022-01-11 2023-01-09 Procédé et appareil de renvoi d'informations d'accusé de réception (ack) de demande de répétition automatique hybride (harq) WO2023134619A1 (fr)

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