WO2021102763A1 - 接收物理下行共享信道的方法和装置 - Google Patents
接收物理下行共享信道的方法和装置 Download PDFInfo
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- WO2021102763A1 WO2021102763A1 PCT/CN2019/121376 CN2019121376W WO2021102763A1 WO 2021102763 A1 WO2021102763 A1 WO 2021102763A1 CN 2019121376 W CN2019121376 W CN 2019121376W WO 2021102763 A1 WO2021102763 A1 WO 2021102763A1
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- pdsch
- time domain
- domain resource
- resource configuration
- urllc
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
- H04L5/0035—Resource allocation in a cooperative multipoint environment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
Definitions
- This application relates to the field of communications, and in particular to a method and device for receiving a physical downlink shared channel.
- the 5th generation (5G) mobile communication system supports physical downlink shared channel (PDSCH) aggregate transmission and ultra-reliable low-latency communication (URLLC) ) Repeat transmission.
- PDSCH physical downlink shared channel
- URLLC ultra-reliable low-latency communication
- the network device can retransmit the PDSCH in multiple consecutive time slots through the same transmission/reception point (TRP), and the number of PDSCH retransmissions is indicated by high-level signaling.
- URLLC repeated transmission the network device can retransmit the PDSCH in multiple time slots, where the network device can use different TRPs to retransmit the PDSCH in these multiple time slots, and the number of retransmissions is determined by DCI signaling .
- the two transmission methods may conflict, resulting in the terminal being unable to determine which method to use to receive the PDSCH.
- the present application provides a method and device for receiving PDSCH, which can avoid the conflict between the above two transmission modes.
- a method for receiving PDSCH including: determining a PDSCH aggregation coefficient and a first time domain resource configuration, wherein the first time domain resource configuration is a time domain resource configuration list configured through higher layer signaling, Alternatively, the first time domain resource configuration is a time domain resource configuration determined from a time domain resource configuration list configured by high-layer signaling according to downlink control information (DCI); according to the PDSCH aggregation coefficient and/ Or the first time domain resource configuration receives at least one PDSCH.
- DCI downlink control information
- the terminal device may determine the specific time domain position of the PDSCH in the time slot according to the first time domain resource configuration. Based on different situations of the first time domain resource configuration, the terminal device may choose to use the PDSCH aggregation coefficient or not to use the PDSCH aggregation coefficient when receiving at least one PDSCH, thereby avoiding the conflict between PDSCH aggregation transmission and URLLC repeated transmission.
- another method for receiving PDSCH including: receiving a time domain resource configuration list for PDSCH transmission, at least one time domain resource configuration in the time domain resource configuration list includes the number of URLLC repetitions; not expected Receive PDSCH aggregation coefficient.
- the foregoing undesired reception of the PDSCH aggregation coefficient may be interpreted as: when receiving the PDSCH aggregation coefficient, the terminal device determines not to receive the PDSCH; or the terminal device does not expect to be configured with the URLLC repetition number and the PDSCH aggregation coefficient at the same time. Therefore, the above method can avoid the conflict between the aggregated PDSCH transmission and the repeated transmission of URLLC.
- a device for receiving PDSCH can realize the function corresponding to the method in the first aspect or the second aspect.
- the function can be realized by hardware, or by hardware executing corresponding software.
- the hardware or software includes one or more units or modules corresponding to the above-mentioned functions.
- the device is a terminal device or a chip.
- the device may include a processing unit and a transceiving unit.
- the processing unit may be a processor, and the transceiving unit may be a transceiver;
- the terminal device may also include a storage unit, and the storage unit may be a memory; the storage unit is used to store instructions, and the processing The unit executes the instructions stored in the storage unit, so that the terminal device executes the method described in the first aspect or the second aspect.
- the processing unit may be a processor, and the transceiving unit may be an input/output interface, a pin or a circuit, etc.; the processing unit executes the instructions stored in the storage unit to include the
- the terminal device of the chip executes the method described in the first aspect or the second aspect
- the storage unit may be a storage unit (for example, a register, a cache, etc.) in the chip, or a terminal device located outside the chip.
- Storage unit for example, read only memory, random access memory, etc.).
- a computer-readable storage medium stores a computer program.
- the processor executes the method described in the first aspect or the second aspect. .
- a computer program product including computer program code, when the computer program code is executed by a processor, the processor executes the method described in the first aspect or the second aspect.
- a computer program which when running on a computer, causes the computer to execute the method described in the first aspect or the second aspect.
- Figure 1 is a schematic diagram of a communication system suitable for the present application
- FIG. 2 is a schematic diagram of PDSCH aggregation transmission provided by this application.
- FIG. 3 is a schematic diagram of URLLC repeated transmission provided by this application.
- FIG. 4 is a schematic diagram of another URLLC repeated transmission provided by this application.
- FIG. 5 is a schematic diagram of a method for receiving PDSCH provided by the present application.
- Fig. 6 is a schematic diagram of another method for receiving PDSCH provided by the present application.
- FIG. 7 is a schematic diagram of a device for receiving PDSCH provided by the present application.
- FIG. 8 is a schematic diagram of another device for receiving PDSCH provided by the present application.
- Fig. 9 is a schematic diagram of a device for receiving PDSCH provided by the present application.
- FIG. 1 is a schematic diagram of a communication system suitable for this application.
- the communication system 100 includes a network device 110 and a terminal device 120.
- the terminal device 120 communicates with the network device 110 through electromagnetic waves.
- the terminal device 120 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, for example, the third-generation partnership project (3 rd Generation partnership project, 3GPP) defined user equipment (user equipment, UE), mobile station (mobile station, MS), soft terminal, home gateway, set-top box, etc.
- 3GPP Third-generation partnership project
- the network device 110 may be a base station defined by 3GPP, for example, a base station (gNB) in a 5G mobile communication system.
- the network device 110 may also be a non-3GPP (non-3GPP) access network device, such as an access gateway (AG).
- the network device 110 may also be a relay station, an access point, a vehicle-mounted device, a wearable device, or other types of devices.
- the communication system 100 is only an example, and the communication system applicable to the present application is not limited to this.
- the number of network devices and terminal devices included in the communication system 100 may also be other numbers.
- network equipment can use PDSCH aggregate transmission to transmit downlink data.
- the network equipment can configure the PDSCH aggregation factor (pdsch-AggregationFactor) for the terminal equipment through radio resource control (radio resource control, RRC) signaling.
- RRC radio resource control
- the terminal equipment When the terminal equipment is scheduled to receive the PDSCH, it needs to set the PDSCH aggregation coefficient in continuous M (M is The PDSCH is repeatedly received in a positive integer) timeslots, where the scheduling mode for the network equipment to schedule the terminal equipment to receive the PDSCH can be dynamic scheduling or semi-continuous scheduling.
- Fig. 2 is a schematic diagram of PDSCH aggregation transmission provided by the present application.
- the PDSCH aggregation coefficient configured by the network device is 4, and the network device schedules the terminal device to receive the PDSCH in time slot 0 through the DCI. After receiving the DCI, the terminal device starts from time slot 0 and receives the PDSCH in 4 consecutive time slots, that is, receives the PDSCH in time slot 0, time slot 1, time slot 2, and time slot 3.
- the frequency domain resources and time domain resources used by the 4 PDSCHs may be the same or different, where the same time domain resources used by the 4 PDSCHs means that the time domain resources in the time slots occupied by the 4 PDSCHs are the same;
- the PDSCH in slot 0 and the PDSCH in slot 1 occupy the same time domain resources, which can be understood as: the number of symbols occupied by the PDSCH in slot 0 is the same as the number of symbols occupied by the PDSCH in slot 1 .
- the network device can configure the URLLC repetition number (URLLCRepNum) for the terminal device, where the network device can pre-configure a time domain resource configuration list (pdsch-TimeDomainAllocationList) through RRC signaling. ), the list contains one or more PDSCH time domain resource configurations (PSDCH-TimeDomainResourceAllocation).
- the PDSCH time domain resource configuration is an RRC parameter, which can include URLLC times; the terminal device can be configured according to the time domain resource allocation in the DCI. , TDRA) domain determines a time domain resource configuration from the time domain resource configuration list.
- a time domain resource configuration determined by the terminal device from the time domain resource list does not include the number of URLLC repetitions, the terminal device does not need to repeatedly receive PDSCH; if the terminal equipment determines a time domain resource configuration from the time domain resource list that contains URLLC repetitions Number of times, the terminal device repeatedly receives the PDSCH according to the number of URLLC repetitions.
- the remaining parameters can all be used in PDSCH aggregation transmission.
- each TCI state is used for repeated transmission of a TRP.
- Fig. 3 is a schematic diagram of URLLC repeated transmission provided by the present application.
- the number of URLLC repetitions determined by the terminal device is 4, and the network device schedules the terminal device to receive the PDSCH in time slot 0 through the DCI. After receiving the DCI, the terminal device starts from time slot 0 and receives the PDSCH in 4 consecutive time slots, that is, receives the PDSCH in time slot 0, time slot 1, time slot 2, and time slot 3.
- the frequency domain resources and time domain resources used by the 4 PDSCHs may be the same or different, where the same time domain resources used by the 4 PDSCHs means that the time domain resources in the time slots occupied by the 4 PDSCHs are the same;
- the PDSCH in slot 0 and the PDSCH in slot 1 occupy the same time domain resources, which can be understood as: the number of symbols occupied by the PDSCH in slot 0 is the same as the number of symbols occupied by the PDSCH in slot 1 .
- DCI can indicate two TCI states and a redundant version (RV).
- the two TCI states are TCI state 0 and TCI state 1.
- the RV is RV0, where TCI state 0 corresponds to TRP1, and TCI state 1 corresponds to TRP2 and RV0 correspond to the PDSCH in time slot 0.
- TRP1 transmits PDSCH in time slot 0 and time slot 1
- TRP2 transmits PDSCH in time slot 2 and time slot 3
- the terminal equipment will be based on RV0 and TCI status 0 in time slot 0.
- TRP1 receives PDSCH.
- the terminal device may determine that the redundancy version in time slot 1 is RV2 according to a preset rule, and receive the PDSCH from TRP1 based on RV2 and TCI state 0. Subsequently, the terminal device may receive PDSCH from TRP2 based on RV0 and TCI state 1, and receive PDSCH from TRP2 based on RV2 and TCI state 1.
- the terminal device may send an acknowledgement (acknowledgement, ACK) or a negative acknowledgement (NACK) to TRP1, indicating the reception of the PDSCH received 4 times.
- acknowledgement acknowledgement
- NACK negative acknowledgement
- the method includes:
- the method shown in FIG. 5 may be executed by a terminal device or a chip in the terminal device.
- the above-mentioned high-level signaling is, for example, RRC signaling, and the method for the terminal device to determine the first time domain resource configuration is as shown in the above example related to the time domain resource configuration.
- first and second are used to distinguish different individuals in objects of the same type.
- first time domain resource configuration and “first time domain resource configuration” are two different There are no other restrictions on time domain resource configuration.
- the terminal device After determining the PDSCH aggregation coefficient and the first time domain resource configuration, the terminal device can perform the following steps.
- S520 Receive at least one PDSCH according to the PDSCH aggregation coefficient and/or the first time domain resource configuration.
- the terminal device may determine the specific time domain position of the PDSCH in the time slot according to the first time domain resource configuration. In addition, based on different situations of the first time domain resource configuration, the terminal device can choose to use the PDSCH aggregation coefficient or not to use the PDSCH aggregation coefficient when receiving at least one PDSCH, thereby avoiding the conflict between the PDSCH aggregation transmission and the URLLC repeated transmission.
- the at least one PDSCH is a PDSCH that transmits the same data, or is referred to as repeated transmission of the same PDSCH.
- Method 1 the first time domain resource configuration is a time domain resource configuration list.
- Case 1-1 and Case 1-2 below are two alternative examples of Method 1.
- At least one time domain resource configuration in the time domain resource configuration list includes the number of URLLC repetitions.
- the terminal device may determine the second time domain resource configuration from the time domain resource configuration list according to the TDRA domain in the DCI for scheduling the at least one PDSCH, and according to the second time domain resource Configure to receive the at least one PDSCH.
- the PDSCH aggregation coefficient is not used to receive the at least one PDSCH, that is, when at least one time domain resource configuration in the current domain resource configuration list includes the number of URLLC repetitions, the priority of the URLLC repetition number in the first time domain resource configuration is higher. Priority for the PDSCH aggregation coefficient.
- the foregoing second time domain resource configuration may include the number of URLLC repetitions or may not include the number of URLLC repetitions.
- the terminal device receives at least one PDSCH in N consecutive time slots, where N is the number of URLLC repetitions included in the second time domain resource configuration, and N is positive Integer. For example, if N is equal to 4, the terminal device receives 4 PDSCHs in 4 consecutive time slots.
- the terminal device receives a PDSCH in a time slot, which may be determined based on the DCI indicating the second time domain resource configuration.
- each PDSCH in at least one PDSCH received by the terminal device includes one or two data streams.
- a data stream is, for example, data corresponding to a demodulation reference signal (DMRS) port.
- the DCI used to schedule the at least one PDSCH may indicate at most two TCI states, that is, the DCI used to schedule the at least one PDSCH may indicate one TCI state, may indicate two TCI states, or may not indicate TCI status.
- the terminal device receives the at least one PDSCH in M consecutive time slots, where M is a PDSCH aggregation coefficient, and M is an integer greater than 1.
- At least one PDSCH received by the terminal device includes one data stream.
- the DCI used to schedule the at least one PDSCH may indicate at most one TCI state, that is, the DCI used to schedule the at least one PDSCH may indicate one TCI state, or may not indicate the TCI state.
- the first time domain resource configuration is a time domain resource configuration determined by the terminal device from a time domain resource configuration list configured by high-level signaling according to DCI.
- Case 2-1 and Case 2-2 below are two alternative examples of Method 2.
- the first time domain resource configuration includes the number of URLLC repetitions.
- the terminal device may receive at least one PDSCH in N consecutive time slots, where N is the number of URLLC repetitions included in the first time domain resource configuration, and N is a positive integer. At this time, N may be an integer greater than 1. Alternatively, N may be an integer greater than or equal to 1.
- the at least one PDSCH includes one or two data streams.
- the DCI for scheduling the at least one PDSCH indicates at most two TCI states, that is, the DCI for scheduling the at least one PDSCH may indicate one TCI state, may indicate two TCI states, or may not indicate a TCI state.
- the terminal device may receive at least one PDSCH in M consecutive time slots, where M is a PDSCH aggregation coefficient, and M is an integer greater than 1.
- the at least one PDSCH contains one data stream.
- the DCI used to schedule the at least one PDSCH indicates at most one TCI state.
- the first time domain resource configuration is a time domain resource configuration determined by the terminal device from a time domain resource configuration list configured by high-level signaling according to DCI.
- the following case 3-1, case 3-2, and case 3-3 are three alternative examples of method 3.
- the first time domain resource configuration includes the number of URLLC repetitions, and the number of URLLC repetitions is greater than one.
- the terminal device may receive at least one PDSCH in N consecutive time slots, where N is the number of URLLC repetitions included in the first time domain resource configuration, and N is a positive integer.
- the at least one PDSCH includes one or two data streams.
- the DCI for scheduling the at least one PDSCH indicates at most two TCI states, that is, the DCI for scheduling the at least one PDSCH may indicate one TCI state, may indicate two TCI states, or may not indicate a TCI state.
- the first time domain resource configuration includes the number of repetitions of URLLC, and the number of repetitions of URLLC is equal to one.
- the terminal device may receive at least one PDSCH in M consecutive time slots, where M is a PDSCH aggregation coefficient, and M is an integer greater than 1.
- the at least one PDSCH contains one data stream.
- the DCI used to schedule the at least one PDSCH indicates at most one TCI state.
- the first time domain resource configuration does not include the number of URLLC repetitions.
- the terminal device can adopt the same processing method as in case 3-2.
- the above has introduced an example of how to receive the PDSCH when the terminal device receives the PDSCH aggregation coefficient and the first time domain resource configuration.
- the terminal device receives the time domain resource configuration list for PDSCH transmission, and when at least one time domain resource configuration in the time domain resource configuration list includes the number of URLLC repetitions, the terminal device can execute the method shown in FIG. 6 .
- S610 Receive a time domain resource configuration list used for PDSCH transmission, where at least one time domain resource configuration in the time domain resource configuration list includes the number of URLLC repetitions.
- the network device has sent the number of URLLC repetitions for PDSCH transmission. If the network device sends the PDSCH aggregation coefficient again, it may cause the PDSCH aggregation transmission and the URLLC repeated transmission to conflict. Therefore, the terminal device can perform the following steps.
- the foregoing undesired reception of the PDSCH aggregation coefficient may be interpreted as: when receiving the PDSCH aggregation coefficient, the terminal device determines not to receive the PDSCH; or the terminal device does not expect to be configured with the URLLC repetition number and the PDSCH aggregation coefficient at the same time.
- the network device will not send the PDSCH aggregation coefficient after sending the URLLC repetition times for PDSCH transmission; or the network device will not configure the URLLC repetition times and the PDSCH aggregation coefficient at the same time.
- the apparatus for receiving PDSCH includes 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. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
- the present application may divide the functional units of the device receiving PDSCH according to the foregoing method examples. For example, each function may be divided into each functional unit, or two or more functions may be integrated into one processing unit.
- the above functional units can be implemented in the form of hardware or software functional units. It should be noted that the division of units in this application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
- Fig. 7 is a schematic structural diagram of a device for receiving PDSCH provided by the present application.
- the device 700 includes a processing unit 710 and a receiving unit 720, and the receiving unit 720 can execute the receiving step under the control of the processing unit 710.
- the processing unit 710 is configured to determine a PDSCH aggregation coefficient and a first time domain resource configuration, where the first time domain resource configuration is a time domain resource configuration list configured through higher layer signaling, or the first time domain resource
- the configuration is a time domain resource configuration determined from the time domain resource configuration list configured by high-level signaling according to DCI;
- the receiving unit 720 is configured to receive at least one PDSCH according to the PDSCH aggregation coefficient and/or the first time domain resource configuration.
- the processing unit 710 is further configured to: when at least one time domain resource configuration in the time domain resource configuration list includes the number of URLLC repetitions
- the processing unit 710 is further configured to: when at least one time domain resource configuration in the time domain resource configuration list includes the number of URLLC repetitions
- the receiving unit 720 is specifically configured to: according to the second time domain resource Configure to receive the at least one PDSCH.
- the receiving unit 720 is specifically configured to: receive the at least one PDSCH in N consecutive time slots, where N is the second time domain The number of URLLC repetitions included in the resource configuration. N is a positive integer.
- each PDSCH in the at least one PDSCH includes one or two data streams.
- the DCI used to schedule the at least one PDSCH indicates at most two TCI states.
- the PDSCH aggregation coefficient is not used for receiving the at least one PDSCH.
- the receiving unit 720 is specifically configured to: when all time domain resource configurations in the time domain resource configuration list do not include the number of URLLC repetitions When receiving the at least one PDSCH in M consecutive time slots according to the PDSCH aggregation coefficient, where M is the PDSCH aggregation coefficient, and M is an integer greater than 1.
- each PDSCH in the at least one PDSCH includes one data stream.
- the DCI used to schedule the at least one PDSCH indicates at most one TCI state.
- the receiving unit 720 is specifically configured to: When the domain resource configuration includes the number of URLLC repetitions, the at least one PDSCH is received in N consecutive time slots, where N is the number of URLLC repetitions, and N is a positive integer; or, when the first time domain When the resource configuration does not include the number of URLLC repetitions, the at least one PDSCH is received in M consecutive time slots, where M is the PDSCH aggregation coefficient, and M is an integer greater than 1.
- each PDSCH in the at least one PDSCH includes one or two data streams.
- the DCI used to schedule the at least one PDSCH indicates at most two TCI states.
- the PDSCH aggregation coefficient is not used to receive the at least one PDSCH.
- each PDSCH in the at least one PDSCH includes one data stream.
- the DCI used to schedule the at least one PDSCH indicates at most one TCI state.
- the receiving unit 720 is specifically configured to: When the number of URLLC repetitions in the domain resource configuration is greater than 1, the at least one PDSCH is received in N consecutive time slots, where N is the number of URLLC repetitions, and N is a positive integer; or, when the first When the number of URLLC repetitions in a time domain resource configuration is equal to 1, the at least one PDSCH is received in M consecutive time slots, where M is the PDSCH aggregation coefficient, and M is an integer greater than 1.
- each PDSCH in the at least one PDSCH includes one or two data streams.
- the DCI used to schedule the at least one PDSCH indicates at most two TCI states.
- the PDSCH aggregation coefficient is not used to receive the at least one PDSCH.
- each PDSCH in the at least one PDSCH includes one data stream.
- the DCI used to schedule the at least one PDSCH indicates at most one TCI state.
- Fig. 8 is a schematic structural diagram of another device for receiving PDSCH provided by the present application.
- the device 800 includes a processing unit 810 and a receiving unit 820, and the receiving unit 820 can perform receiving steps under the control of the processing unit 810.
- the receiving unit 820 is configured to receive a time domain resource configuration list used for PDSCH transmission, where at least one time domain resource configuration in the time domain resource configuration list includes the number of URLLC repetitions;
- the processing unit 810 is configured to: not expect to receive PDSCH aggregation coefficients.
- the processing unit 810 is configured to: when the PDSCH aggregation coefficient is received through the receiving unit 820, determine not to receive the PDSCH.
- FIG. 9 shows a schematic structural diagram of a device for receiving PDSCH provided by the present application.
- the dotted line in Figure 9 indicates that the unit or the module is optional.
- the device 900 may be used to implement the methods described in the foregoing method embodiments.
- the device 900 may be a terminal device or a chip.
- the device 900 includes one or more processors 901, and the one or more processors 901 can support the device 900 to implement the methods in the method embodiments corresponding to FIGS. 2 to 6.
- the processor 901 may be a general-purpose processor or a special-purpose processor.
- the processor 901 may be a central processing unit (CPU).
- the CPU can be used to control the device 900, execute a software program, and process data of the software program.
- the device 900 may also include a communication unit 905 to implement signal input (reception) and output (transmission).
- the device 900 may be a chip, and the communication unit 905 may be an input and/or output circuit of the chip, or the communication unit 905 may be a communication interface of the chip, and the chip may be used as a terminal device or a network device or other wireless communication device. made of.
- the device 900 may be a terminal device, and the communication unit 905 may be a transceiver of the terminal device, or the communication unit 905 may be a transceiver circuit of the terminal device.
- the device 900 may include one or more memories 902 with a program 904 stored thereon, and the program 904 may be run by the processor 901 to generate an instruction 903 so that the processor 901 executes the method described in the foregoing method embodiment according to the instruction 903.
- data may also be stored in the memory 902.
- the processor 901 may also read data stored in the memory 902. The data may be stored at the same storage address as the program 904, and the data may also be stored at a different storage address from the program 904.
- the processor 901 and the memory 902 may be provided separately or integrated together, for example, integrated on a system-on-chip (SOC) of the terminal device.
- SOC system-on-chip
- the device 900 may also include an antenna 906.
- the communication unit 905 is used to implement the transceiver function of the device 900 through the antenna 906.
- the processor 901 may be a CPU, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices , For example, discrete gates, transistor logic devices, or discrete hardware components.
- DSP digital signal processor
- ASIC application specific integrated circuit
- FPGA field programmable gate array
- This application also provides a computer program product, which, when executed by the processor 901, implements the method described in any method embodiment in this application.
- the computer program product may be stored in the memory 902, for example, a program 904.
- the program 904 is finally converted into an executable object file that can be executed by the processor 901 through processing processes such as preprocessing, compilation, assembly, and linking.
- the present application also provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a computer, the method described in any method embodiment in the present application is implemented.
- the computer program can be a high-level language program or an executable target program.
- the computer-readable storage medium is, for example, the memory 902.
- the memory 902 may be a volatile memory or a non-volatile memory, or the memory 902 may include both a volatile memory and a non-volatile memory.
- the non-volatile memory may be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
- the volatile memory may be random access memory (RAM), which is used as an external cache.
- RAM random access memory
- static random access memory static random access memory
- dynamic RAM dynamic RAM
- DRAM dynamic random access memory
- synchronous dynamic random access memory synchronous DRAM, SDRAM
- double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
- enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
- synchronous connection dynamic random access memory serial DRAM, SLDRAM
- direct rambus RAM direct rambus RAM, DR RAM
- the disclosed system, device, and method may be implemented in other ways. For example, some features of the method embodiments described above may be ignored or not implemented.
- the device embodiments described above are merely illustrative.
- the division of units is only a logical function division. In actual implementation, there may be other division methods, and multiple units or components may be combined or integrated into another system.
- the coupling between the units or the coupling between the components may be direct coupling or indirect coupling, and the foregoing coupling includes electrical, mechanical, or other forms of connection.
- the size of the sequence number of each process does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not correspond to the embodiments of the present application.
- the implementation process constitutes any limitation.
- system and “network” in this article are often used interchangeably in this article.
- the term “and/or” in this article is only an association relationship that describes associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist simultaneously There are three cases of B.
- the character “/" in this text generally indicates that the associated objects before and after are in an "or" relationship.
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Abstract
Description
Claims (51)
- 一种接收物理下行共享信道的方法,其特征在于,包括:确定物理下行共享信道PDSCH聚合系数和第一时域资源配置,其中,所述第一时域资源配置为通过高层信令配置的时域资源配置列表,或者,所述第一时域资源配置为根据下行控制信息DCI从高层信令配置的时域资源配置列表中确定的一个时域资源配置;根据所述PDSCH聚合系数和/或所述第一时域资源配置接收至少一个PDSCH。
- 根据权利要求1所述的方法,其特征在于,当所述第一时域资源配置为所述时域资源配置列表时,所述根据所述PDSCH聚合系数和/或所述第一时域资源配置接收至少一个PDSCH,包括:当所述时域资源配置列表中的至少一个时域资源配置包括超可靠低时延通信URLLC重复次数时,根据用于调度所述至少一个PDSCH的DCI中的时域资源配置TDRA域,从所述时域资源配置列表中确定第二时域资源配置,并根据所述第二时域资源配置接收所述至少一个PDSCH。
- 根据权利要求2所述的方法,其特征在于,当所述第二时域资源配置包含URLLC重复次数时,所述根据所述第二时域资源配置接收所述至少一个PDSCH,包括:在N个连续的时隙中接收所述至少一个PDSCH,其中N为所述第二时域资源配置中包含的URLLC重复次数,N为正整数。
- 根据权利要求2或3所述的方法,其特征在于,所述至少一个PDSCH中的每个PDSCH包含一个或者两个数据流。
- 根据权利要求2至4中任一项所述的方法,其特征在于,用于调度所述至少一个PDSCH的DCI最多指示两个传输配置指示TCI状态。
- 根据权利要求2至5中任一项所述的方法,其特征在于,所述PDSCH聚合系数不用于接收所述至少一个PDSCH。
- 根据权利要求1所述的方法,其特征在于,当所述第一时域资源配置为所述时域资源配置列表时,所述根据所述PDSCH聚合系数和/或所述第一时域资源配置接收至少一个PDSCH,包括:当所述时域资源配置列表中的全部时域资源配置不包括URLLC重复次数时,根据所述PDSCH聚合系数M,在M个连续的时隙中接收所述至少一个PDSCH,其中,M为所述PDSCH聚合系数,并且,M为大于1的整数。
- 根据权利要求7所述的方法,其特征在于,所述至少一个PDSCH中的每个PDSCH包含一个数据流。
- 根据权利要求7或8所述的方法,其特征在于,用于调度所述至少一个PDSCH的DCI最多指示一个TCI状态。
- 根据权利要求1所述的方法,其特征在于,当所述第一时域资源配置为根据DCI从高层信令配置的时域资源配置列表中确定的一个时域资源配置时,所述根据所述PDSCH聚合系数和/或所述第一时域资源配置接收至少一个PDSCH,包括:当所述第一时域资源配置包括URLLC重复次数时,在N个连续的时隙内接收所述至少一个PDSCH,其中,N为所述URLLC重复次数,并且,N为正整数;或者,当所述第一时域资源配置不包括URLLC重复次数时,在M个连续的时隙内接收所述至少一个PDSCH,其中,M为所述PDSCH聚合系数,并且,M为大于1的整数。
- 根据权利要求10所述的方法,其特征在于,当所述第一时域资源配置包括URLLC重复次数时,所述至少一个PDSCH中的每个PDSCH包含一个或者两个数据流。
- 根据权利要求10或11所述的方法,其特征在于,当所述第一时域资源配置包括URLLC重复次数时,用于调度所述至少一个PDSCH的DCI最多指示两个TCI状态。
- 根据权利要求10至12中任一项所述的方法,其特征在于,当所述第一时域资源配置包括URLLC重复次数时,所述PDSCH聚合系数不用于接收所述至少一个PDSCH。
- 根据权利要求10所述的方法,其特征在于,当所述第一时域资源配置不包括URLLC重复次数时,所述至少一个PDSCH中的每个PDSCH包含一个数据流。
- 根据权利要求10或14所述的方法,其特征在于,当所述第一时域资源不配置包括URLLC重复次数时,用于调度所述至少一个PDSCH的DCI最多指示一个TCI状态。
- 根据权利要求1所述的方法,其特征在于,当所述第一时域资源配置为根据DCI从高层信令配置的时域资源配置列表中确定的一个时域资源配置时,所述根据所述PDSCH聚合系数和/或所述第一时域资源配置接收至少一个PDSCH,包括:当所述第一时域资源配置中的URLLC重复次数大于1时,在N个连续的时隙内接收所述至少一个PDSCH,其中,N为所述URLLC重复次数,并且,N为正整数;或者,当所述第一时域资源配置中的URLLC重复次数等于1时,在M个连续的时隙内接收所述至少一个PDSCH,其中,M为所述PDSCH聚合系数,并且,M为大于1的整数。
- 根据权利要求16所述的方法,其特征在于,当所述第一时域资源配置中的URLLC重复次数大于1时,所述至少一个PDSCH中的每个PDSCH包含一个或者两个数据流。
- 根据权利要求16或17所述的方法,其特征在于,当所述第一时域资源配置中的URLLC重复次数大于1时,用于调度所述至少一个PDSCH的DCI最多指示两个TCI状态。
- 根据权利要求16至18中任一项所述的方法,其特征在于,当所述第一时域资源配置包括URLLC重复次数时,所述PDSCH聚合系数不用于接收所述至少一个PDSCH。
- 根据权利要求16所述的方法,其特征在于,当所述第一时域资源配置中的URLLC重复次数等于1时,所述至少一个PDSCH中的每个PDSCH包含一个数据流。
- 根据权利要求16或20所述的方法,其特征在于,当所述第一时域资源配置中的URLLC重复次数等于1时,用于调度所述至少一个PDSCH的DCI最多指示一个TCI状态。
- 一种接收物理下行共享信道的方法,其特征在于,包括:接收用于物理下行共享信道PDSCH传输的时域资源配置列表,所述时域资源配置列表中的至少一个时域资源配置包括超可靠低时延通信URLLC重复次数;不期望接收PDSCH聚合系数。
- 根据权利要求22所述的方法,其特征在于,所述不期望接收PDSCH聚合系数,包括:当接收到所述PDSCH聚合系数时,确定不接收PDSCH。
- 一种接收物理下行共享信道的装置,其特征在于,包括处理单元和接收单元,所述处理单元用于:确定物理下行共享信道PDSCH聚合系数和第一时域资源配置,其中,所述第一时域资源配置为通过高层信令配置的时域资源配置列表,或者,所述第一时域资源配置为根据下行控制信息DCI从高层信令配置的时域资源配置列表中确定的一个时域资源配置;所述接收单元用于:根据所述PDSCH聚合系数和/或所述第一时域资源配置接收至少一个PDSCH。
- 根据权利要求24所述的装置,其特征在于,当所述第一时域资源配置为所述时域资源配置列表时,所述处理单元还用于:当所述时域资源配置列表中的至少一个时域资源配置包括超可靠低时延通信URLLC重复次数时,根据用于调度所述至少一个PDSCH的DCI中的时域资源配置TDRA域,从所述时域资源配置列表中确定第二时域资源配置;所述接收单元具体用于:根据所述第二时域资源配置接收所述至少一个PDSCH。
- 根据权利要求25所述的装置,其特征在于,当所述第二时域资源配置包含URLLC重复次数时,所述接收单元具体用于:在N个连续的时隙中接收所述至少一个PDSCH,其中N为所述第二时域资源配置中包含的URLLC重复次数,N为正整数。
- 根据权利要求25或26所述的装置,其特征在于,所述至少一个PDSCH中的每个PDSCH包含一个或者两个数据流。
- 根据权利要求25至27中任一项所述的装置,其特征在于,用于调度所述至少一个PDSCH的DCI最多指示两个传输配置指示TCI状态。
- 根据权利要求25至28中任一项所述的装置,其特征在于,所述PDSCH聚合系数不用于接收所述至少一个PDSCH。
- 根据权利要求24所述的装置,其特征在于,当所述第一时域资源配置为所述时域资源配置列表时,所述接收单元具体用于:当所述时域资源配置列表中的全部时域资源配置不包括URLLC重复次数时,根据所述PDSCH聚合系数在M个连续的时隙中接收所述至少一个PDSCH,其中,M为所述PDSCH聚合系数,并且,M为大于1的整数。
- 根据权利要求30所述的装置,其特征在于,所述至少一个PDSCH中的每个PDSCH包含一个数据流。
- 根据权利要求30或31所述的装置,其特征在于,用于调度所述至少一个PDSCH的DCI最多指示一个TCI状态。
- 根据权利要求24所述的装置,其特征在于,当所述第一时域资源配置为根据DCI从高层信令配置的时域资源配置列表中确定的一个时域资源配置时,所述接收单元具体用于:当所述第一时域资源配置包括URLLC重复次数时,在N个连续的时隙内接收所述至少一个PDSCH,其中,N为所述URLLC重复次数,并且,N为正整数;或者,当所述第一时域资源配置不包括URLLC重复次数时,在M个连续的时隙内接收所述至少一个PDSCH,其中,M为所述PDSCH聚合系数,并且,M为大于1的整数。
- 根据权利要求33所述的装置,其特征在于,当所述第一时域资源配置包括URLLC重复次数时,所述至少一个PDSCH中的每个PDSCH包含一个或者两个数据流。
- 根据权利要求33或34所述的装置,其特征在于,当所述第一时域资源配置包括URLLC重复次数时,用于调度所述至少一个PDSCH的DCI最多指示两个TCI状态。
- 根据权利要求33至35中任一项所述的装置,其特征在于,当所述第一时域资源配置包括URLLC重复次数时,所述PDSCH聚合系数不用于接收所述至少一个PDSCH。
- 根据权利要求33所述的装置,其特征在于,当所述第一时域资源配置不包括URLLC重复次数时,所述至少一个PDSCH中的每个PDSCH包含一个数据流。
- 根据权利要求33或37所述的装置,其特征在于,当所述第一时域资源不配置包括URLLC重复次数时,用于调度所述至少一个PDSCH的DCI最多指示一个TCI状态。
- 根据权利要求24所述的装置,其特征在于,当所述第一时域资源配置为根据DCI从高层信令配置的时域资源配置列表中确定的一个时域资源配置时,所述接收单元具体用于:当所述第一时域资源配置中的URLLC重复次数大于1时,在N个连续的时隙内接收所述至少一个PDSCH,其中,N为所述URLLC重复次数,并且,N为正整数;或者,当所述第一时域资源配置中的URLLC重复次数等于1时,在M个连续的时隙内内接收所述至少一个PDSCH,其中,M为所述PDSCH聚合系数,并且,M为大于1的整数。
- 根据权利要求39所述的装置,其特征在于,当所述第一时域资源配置中的URLLC重复次数大于1时,所述至少一个PDSCH中的每个PDSCH包含一个或者两个数据流。
- 根据权利要求39或40所述的装置,其特征在于,当所述第一时域资源配置中的URLLC重复次数大于1时,用于调度所述至少一个PDSCH的DCI最多指示两个TCI状态。
- 根据权利要求39至41中任一项所述的装置,其特征在于,当所述第一时域资源配置包括URLLC重复次数时,所述PDSCH聚合系数不用于接收所述至少一个PDSCH。
- 根据权利要求39所述的装置,其特征在于,当所述第一时域资源配置中的URLLC重复次数等于1时,所述至少一个PDSCH中的每个PDSCH包含一个数据流。
- 根据权利要求39或43所述的装置,其特征在于,当所述第一时域资源配置中的URLLC重复次数等于1时,用于调度所述至少一个PDSCH的DCI最多指示一个TCI状态。
- 一种接收物理下行共享信道的装置,其特征在于,包括处理单元和接收单元,所述接收单元用于:接收用于物理下行共享信道PDSCH传输的时域资源配置列表,所述时域资源配置列表中的至少一个时域资源配置包括超可靠低时延通信URLLC重复次数;所述处理单元用于:不期望接收PDSCH聚合系数。
- 根据权利要求45所述的装置,其特征在于,所述处理单元具体用于:当接收到所述PDSCH聚合系数时,确定不接收PDSCH。
- 一种终端设备,其特征在于,包括:处理器和存储器,所述存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行:如权利 要求1至21中任一项所述的方法,或者,如权利要求22或23所述的方法。
- 一种芯片,其特征在于,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行:如权利要求1至21中任一项所述的方法,或者,如权利要求22或23所述的方法。
- 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行:如权利要求1至21中任一项所述的方法,或者,如权利要求22或23所述的方法。
- 一种计算机程序产品,其特征在于,包括计算机程序指令,该计算机程序指令使得计算机执行:如权利要求1至21中任一项所述的方法,或者,如权利要求22或23所述的方法。
- 一种计算机程序,其特征在于,所述计算机程序使得计算机执行:如权利要求1至21中任一项所述的方法,或者,如权利要求22或23所述的方法。
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KR20220104727A (ko) | 2022-07-26 |
JP2023509286A (ja) | 2023-03-08 |
EP4044723A4 (en) | 2023-01-04 |
US20220264627A1 (en) | 2022-08-18 |
CN113708906A (zh) | 2021-11-26 |
CN113261358A (zh) | 2021-08-13 |
CN113708906B (zh) | 2023-09-01 |
EP4044723A1 (en) | 2022-08-17 |
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