WO2020061788A1 - Procédé de communication et appareil de communication - Google Patents

Procédé de communication et appareil de communication Download PDF

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Publication number
WO2020061788A1
WO2020061788A1 PCT/CN2018/107467 CN2018107467W WO2020061788A1 WO 2020061788 A1 WO2020061788 A1 WO 2020061788A1 CN 2018107467 W CN2018107467 W CN 2018107467W WO 2020061788 A1 WO2020061788 A1 WO 2020061788A1
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WIPO (PCT)
Prior art keywords
spdsch
subslot
dci
resource
rate matching
Prior art date
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Ceased
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PCT/CN2018/107467
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English (en)
Chinese (zh)
Inventor
苏立焱
李超君
夏金环
朱伟
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to PCT/CN2018/107467 priority Critical patent/WO2020061788A1/fr
Priority to CN201880097565.2A priority patent/CN112703804B/zh
Publication of WO2020061788A1 publication Critical patent/WO2020061788A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • 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 communication, and more particularly, to a communication method and a communication device.
  • LTE long term evolution
  • 5G 5th-generation
  • LTE introduced short transmission
  • the time interval shortened transmission time interval, subslot
  • the physical downlink shared channel physical downlink shared channel (PDSCH)) repeated transmission (repetition) technology.
  • PDSCH physical downlink shared channel
  • Subslot technology can introduce shorter time scheduling units for LTE.
  • the subslot technology can introduce one time slot, two time domain symbols, or three time domain symbols as a time scheduling unit for LTE.
  • the PDSCH repetition technology can enable a base station to use a downlink control information (DCI) to schedule multiple PDSCHs in multiple subslots.
  • DCI downlink control information
  • a downlink subframe may include 6 subslots, and the numbers of the 6 subslots are subslot # 0 to # 5.
  • the base station may serve each user equipment ( User equipment (UE) configures 1 or 2 resource block (resource block, RB) sets.
  • the UE detects short downlink control information (sDCI) on the RB set configured by the base station; and the UE detects DCI on the physical downlink control channel (PDCCH) domain on subslot # 0, so There is no RB set on subslot # 0.
  • sDCI short downlink control information
  • the subslot allows short physical downlink shared channels (sPDSCH) to reuse resources not occupied by sDCI in the RB set.
  • the base station can indicate whether the overlapping part of the two RB sets and the sPDSCH can be used to send the sPDSCH through physical layer signaling. Generally, this indication process can also be called rate matching.
  • instruction information may be added to the sDCI to indicate whether the sPDSCH can occupy RB set resources. Since there is no RB set on subslot # 0, the DCI in the PDCCH domain does not contain the indication information. After PDSCH repetition is enabled, except for the first subslot, other subslots that are repeatedly transmitted do not contain sDCI. All other subslots that are repeatedly transmitted follow the rate matching scheme on the first subslot.
  • the DCI in the PDCCH domain does not contain the indication information.
  • the DCI indicating the PDSCH resource is sent in the PDCCH domain, other repeated transmission subslots cannot learn the rate matching scheme.
  • the present application provides a communication method and a communication device, which can enable other subslots of repeated transmissions to obtain a rate matching scheme when DCI is transmitted in the PDCCH domain.
  • a communication method includes: receiving first configuration information from a network device, where the first configuration information includes a physical layer reuse instruction, and the physical layer reuse instruction is used to indicate the first
  • the rate matching scheme of the short physical downlink shared channel sPDSCH is indicated by physical layer signaling.
  • the first type of sPDSCH is the sPDSCH carried in the subslot subslot with a number other than 0.
  • the downlink control information DCI is received from the network device.
  • the DCI is carried in a physical downlink control channel PDCCH domain, and the DCI is used to schedule a single sPDSCH carried in a subslot numbered 0, or the DCI is used to schedule multiple sPDSCH including a subslot carried in a numbered 0 subslot.
  • SPDSCH when the DCI is used to schedule the multiple sPDSCHs including the sPDSCH carried in the subslot numbered 0, determine the sPDSCH of the first type of sPDSCH according to the multiplexing indication information in the DCI A rate matching scheme, or determining the rate matching scheme of the first type of sPDSCH according to high-level signaling.
  • the DCI when the DCI is used to schedule the multiple sPDSCHs including the sPDSCH carried in the subslot with the number 0, according to the multiplexing indication information in the DCI or
  • the higher-layer signaling determines the rate matching scheme of the first type of sPDSCH, which can enable other subslots of repeated transmission to obtain the rate matching scheme when DCI is sent in the PDCCH domain.
  • the subslot with the number 0 is the first subslot of each subframe, and the PDCCH domain starts with the first symbol of each subframe.
  • the method further includes: receiving second configuration information from a network device, the second configuration information is used to configure a resource block set, and the resource block set is used to carry a short physical downlink control channel sPDCCH
  • the DCI includes resource allocation information, the resource allocation information is used to indicate an initial sPDSCH resource of the single sPDSCH or the multiple sPDSCHs, and the multiplexing indication information or the high-level signaling is used to indicate the Whether the overlapping part of the initial sPDSCH resource and the set of resource blocks can be used to transmit sPDSCH; determining the sPDSCH according to the multiplexing indication information and the initial sPDSCH resource, or according to the high-level signaling and the initial sPDSCH resource The first type of sPDSCH rate matching mode.
  • the PDSCH resource used on the subslot with the number 0 is the initial PDSCH resource.
  • the sPDSCH resource used on the subslot with the number 0 is the initial sPDSCH resource
  • the downlink resources in the subslot with the number 0 can be fully used to transmit the sPDSCH, thereby improving the resource utilization rate.
  • the sPDSCH resource used on the subslot numbered 0 is the initial sPDSCH resource, the complexity of network device scheduling can be reduced.
  • the rate matching scheme of the PDSCH transmitted on the subslot numbered 0 is the same as the rate matching scheme of the first type of sPDSCH.
  • the terminal device can combine the K transmission sPDSCHs and demodulate, which can reduce the processing complexity of the terminal device.
  • the multiplexing indication information is located in the DCI.
  • the multiplexing indication information is pre- Define the value.
  • the reliability of the DCI estimation can be improved.
  • a communication method includes: sending first configuration information to a terminal device, where the first configuration information includes a physical layer reuse instruction, and the physical layer reuse instruction is used to indicate the first The rate matching mode of the short-type physical downlink shared channel sPDSCH resource is indicated by physical layer signaling.
  • the first type of sPDSCH resource is an sPDSCH resource carried in a sub-slot subslot with a number other than 0; generating multiplexing indication information or a higher layer Signaling, the multiplexing indication information or the high-level signaling for determining a rate matching scheme for the first type of sPDSCH resources scheduled by downlink control information DCI, wherein the DCI is carried in a physical downlink control channel PDCCH domain, and The DCI is used to schedule a single sPDSCH carried in the subslot with the number 0, or the DCI is used to schedule multiple sPDSCH including the sPDSCH carried in the subslot with the number 0;
  • the DCI or high-level signaling, the DCI includes the multiplexing indication information.
  • the DCI when the DCI is used to schedule the multiple sPDSCHs including the sPDSCH carried in the subslot with the number 0, according to the multiplexing indication information in the DCI or
  • the higher-layer signaling determines the rate matching scheme of the first type of sPDSCH, which can enable other subslots of repeated transmission to obtain the rate matching scheme when DCI is sent in the PDCCH domain.
  • the subslot with the number 0 is the first subslot of each subframe, and the PDCCH domain starts with the first symbol of each subframe.
  • the method further includes: sending second configuration information to the terminal device, where the second configuration information is used to configure a resource block set, and the resource block set is used to bear Short physical downlink control channel sPDCCH, the DCI includes resource allocation information, the resource allocation information is used to indicate an initial sPDSCH resource of the single sPDSCH or the multiple sPDSCHs, and the indication information is used to indicate the initial sPDSCH Whether the overlapping part of the resource and the set of resource blocks can be used for transmitting the sPDSCH.
  • the second configuration information is used to configure a resource block set
  • the resource block set is used to bear Short physical downlink control channel sPDCCH
  • the DCI includes resource allocation information
  • the resource allocation information is used to indicate an initial sPDSCH resource of the single sPDSCH or the multiple sPDSCHs
  • the indication information is used to indicate the initial sPDSCH Whether the overlapping part of the resource and the set of resource blocks can be used for transmitting the sPDSCH.
  • the PDSCH resource used on the subslot with the number 0 is the initial PDSCH resource.
  • the sPDSCH resource used on the subslot with the number 0 is the initial sPDSCH resource
  • the downlink resources in the subslot with the number 0 can be fully used to transmit the sPDSCH, thereby improving the resource utilization rate.
  • the sPDSCH resource used on the subslot numbered 0 is the initial sPDSCH resource, the complexity of network device scheduling can be reduced.
  • the rate matching scheme of the PDSCH transmitted on the subslot numbered 0 is the same as the rate matching scheme of the first type of sPDSCH.
  • the terminal device can combine the K transmission sPDSCHs and demodulate, which can reduce the processing complexity of the terminal device.
  • the indication information is located in the DCI.
  • the indication information is a predefined value.
  • the reliability of the DCI estimation can be improved.
  • a communication device configured to include a receiving module configured to receive first configuration information from a network device, where the first configuration information includes a physical layer reuse instruction, and the physical layer reuse instruction.
  • the rate matching scheme for indicating the first type of short physical downlink shared channel sPDSCH is indicated by physical layer signaling.
  • the first type of sPDSCH is an sPDSCH carried in a subslot subslot with a number other than 0.
  • the receiving module also uses For receiving downlink control information DCI from a network device, the DCI is carried in a physical downlink control channel PDCCH domain, the DCI is used to schedule a single sPDSCH carried in a subslot numbered 0, or the DCI is used to schedule a A plurality of sPDSCHs including the sPDSCH of the subslot numbered 0; a processing module configured to: when the DCI is used to schedule the plurality of sPDSCHs including the sPDSCH carried in the subslot of the number 0, according to The multiplexing indication information in the DCI determines the rate matching scheme of the first type of sPDSCH, or determines the rate matching scheme of the first type of sPDSCH according to higher layer signaling.
  • the DCI when the DCI is used to schedule the multiple sPDSCHs including the sPDSCH carried in the subslot with the number 0, according to the multiplexing indication information in the DCI or
  • the higher-layer signaling determines the rate matching scheme of the first type of sPDSCH, which can enable other subslots of repeated transmission to obtain the rate matching scheme when DCI is sent in the PDCCH domain.
  • the subslot with the number 0 is the first subslot of each subframe, and the PDCCH domain starts with the first symbol of each subframe.
  • the receiving module is further configured to receive second configuration information from a network device, where the second configuration information is used to configure a resource block set, and the resource block set is used to carry short physical downlink control.
  • Channel sPDCCH the DCI includes resource allocation information, the resource allocation information is used to indicate an initial sPDSCH resource of the single sPDSCH or the multiple sPDSCHs, and the multiplexing indication information or the high-level signaling is used to indicate Whether the overlapping part of the initial sPDSCH resource and the set of resource blocks can be used to transmit sPDSCH; the processing module is specifically configured to: according to the multiplexing indication information and the initial sPDSCH resource, or according to the higher-layer signaling And the initial sPDSCH resource to determine a rate matching mode of the first type of sPDSCH.
  • the PDSCH resource used on the subslot with the number 0 is the initial PDSCH resource.
  • the sPDSCH resource used on the subslot with the number 0 is the initial sPDSCH resource
  • the downlink resources in the subslot with the number 0 can be fully used to transmit the sPDSCH, thereby improving the resource utilization rate.
  • the sPDSCH resource used on the subslot numbered 0 is the initial sPDSCH resource, the complexity of network device scheduling can be reduced.
  • the rate matching scheme of the PDSCH transmitted on the subslot numbered 0 is the same as the rate matching scheme of the first type of sPDSCH.
  • the terminal device can combine the K transmission sPDSCHs and demodulate, which can reduce the processing complexity of the terminal device.
  • the multiplexing indication information is located in the DCI.
  • the multiplexing indication information is pre- Define the value.
  • the reliability of the DCI estimation can be improved.
  • a communication device includes a sending module configured to send first configuration information to a terminal device, where the first configuration information includes a physical layer reuse instruction, and the physical layer reuse instruction.
  • the rate matching mode used to indicate the first type of short physical downlink shared channel sPDSCH resource is indicated by physical layer signaling.
  • the first type of sPDSCH resource is an sPDSCH resource carried in a sub-slot subslot with a number other than 0; a processing module For generating multiplexing indication information or high-level signaling, where the multiplexing indication information or high-level signaling is used to determine a rate matching scheme for the first type of sPDSCH resources scheduled by downlink control information DCI scheduling, wherein the DCI bearer In the physical downlink control channel PDCCH domain, and the DCI is used to schedule a single sPDSCH carried in the subslot numbered 0, or the DCI is used to schedule the sPDSCH including the subslot numbered 0 Multiple sPDSCH; a sending module, further configured to send the DCI or high-level signaling to a terminal device, where the DCI includes the multiplexing indication information.
  • the DCI when the DCI is used to schedule the multiple sPDSCHs including the sPDSCH carried in the subslot with the number 0, according to the multiplexing indication information in the DCI or
  • the higher-layer signaling determines the rate matching scheme of the first type of sPDSCH, which can enable other subslots of repeated transmission to obtain the rate matching scheme when DCI is sent in the PDCCH domain.
  • the subslot with the number 0 is the first subslot of each subframe, and the PDCCH domain starts with the first symbol of each subframe.
  • the sending module is further configured to send second configuration information to the terminal device, where the second configuration information is used to configure a resource block set, and the resource block set is used for For carrying a short physical downlink control channel sPDCCH, the DCI includes resource allocation information, where the resource allocation information is used to indicate an initial sPDSCH resource of the single sPDSCH or the multiple sPDSCHs, and the indication information is used to indicate the Whether the overlapping part of the initial sPDSCH resource and the set of resource blocks can be used for transmitting the sPDSCH.
  • the PDSCH resource used on the subslot with the number 0 is the initial PDSCH resource.
  • the sPDSCH resource used on the subslot with the number 0 is the initial sPDSCH resource
  • the downlink resources in the subslot with the number 0 can be fully used to transmit the sPDSCH, thereby improving the resource utilization rate.
  • the sPDSCH resource used on the subslot numbered 0 is the initial sPDSCH resource, the complexity of network device scheduling can be reduced.
  • the rate matching scheme of the PDSCH transmitted on the subslot numbered 0 is the same as the rate matching scheme of the first type of sPDSCH.
  • the terminal device can combine the K transmission sPDSCHs and demodulate, which can reduce the processing complexity of the terminal device.
  • the indication information is located in the DCI.
  • the indication information is a predefined value.
  • the reliability of the DCI estimation can be improved.
  • a communication device includes a receiver and a processor.
  • the processor is configured to execute a program.
  • the processor executes the program, the receiver and the processor implement the first aspect or any one of the first aspect. Communication method in one possible implementation.
  • the communication device may further include a memory.
  • the memory is used to store programs executed by the processor.
  • a communication device includes a transmitter and a processor.
  • the processor is configured to execute a program.
  • the processor executes the program, the transmitter and the processor implement the second aspect or any one of the second aspect. Communication method in one possible implementation.
  • the communication device may further include a memory.
  • the memory is used to store programs executed by the processor.
  • a computer-readable storage medium stores program code for execution by a communication device, where the program code includes the first aspect or any one of the first aspect. Instructions for implementing a communication method.
  • a computer-readable storage medium stores program code for execution by a communication device, and the program code includes a second aspect or any one of the second aspect. Instructions for implementing a communication method.
  • a chip includes a processor and a communication interface, where the communication interface is used to communicate with an external device, and the processor is used to implement the first aspect or any possible implementation manner of the first aspect. Communication method.
  • the chip may further include a memory, and the memory stores instructions.
  • the processor is configured to execute the instructions stored in the memory.
  • the processor is configured to implement the first aspect or any one of the first aspect. Communication methods in possible implementations.
  • a chip includes a processor and a communication interface, where the communication interface is used to communicate with an external device, and the processor is used to implement the second aspect or any possible implementation manner of the second aspect. Communication method.
  • the chip may further include a memory, and the memory stores instructions.
  • the processor is configured to execute the instructions stored in the memory.
  • the processor is configured to implement the second aspect or any one of the second aspect. Communication methods in possible implementations.
  • a computer program product includes instructions that, when run on a communication device, cause the communication device to execute the communication method in the first aspect or any possible implementation manner of the first aspect. .
  • a computer program product including instructions that, when running on a communication device, cause the communication device to execute the communication method in the second aspect or any possible implementation manner of the second aspect.
  • an embodiment of the present application provides a communication system including the communication device according to one or more of the third aspect to the sixth aspect.
  • the communication system further includes other equipment that interacts with any one of the communication devices in one or more of the third aspect to the sixth aspect in the solutions provided in the embodiments of the present application.
  • FIG. 1 is a schematic architecture diagram of a communication system to which a communication method according to an embodiment of the present application can be applied.
  • FIG. 2 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a communication method according to another embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 8 is a schematic flowchart of a communication method according to another embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a communication device according to another embodiment of the present application.
  • GSM global mobile communication
  • CDMA code division multiple access
  • WCDMA broadband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunications System
  • WiMAX Global Interoperability for Microwave Access
  • the terminal device in the embodiments of the present application may refer to user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or User device.
  • Terminal equipment can also be cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and wireless communications Functional handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network, or public land mobile network (PLMN) in future evolution Terminal equipment and the like are not limited in this embodiment of the present application.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDAs personal digital assistants
  • PLMN public land mobile network
  • the network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may be a Global System for Mobile Communication (GSM) system or a Code Division Multiple Access (CDMA) system.
  • the base station (Base Transceiver Station (BTS)) can also be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (evolved) in an LTE system.
  • GSM Global System for Mobile Communication
  • CDMA Code Division Multiple Access
  • the base station can also be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (evolved) in an LTE system.
  • NodeB, NB base station
  • WCDMA wideband code division multiple access
  • evolved evolved base station
  • NodeB can also be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device can be a relay station, access point, in-vehicle device, wearable device, and future
  • CRAN cloud radio access network
  • the network equipment in the 5G network or the network equipment in the future evolved PLMN network is not limited in the embodiments of the present application.
  • the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • This hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also called main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system.
  • This application layer contains applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided by the embodiment of the present application, as long as the program that records the code of the method provided by the embodiment of the application can be run to provide the program according to the embodiment of the application.
  • the communication may be performed by using the method described above.
  • the method execution subject provided in the embodiments of the present application may be a terminal device or a network device, or a function module in the terminal device or the network device that can call a program and execute the program.
  • various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and / or engineering techniques.
  • article of manufacture encompasses a computer program accessible from any computer-readable device, carrier, or medium.
  • computer-readable media may include, but are not limited to: magnetic storage devices (eg, hard disks, floppy disks, or magnetic tapes, etc.), optical disks (eg, compact discs (CDs), digital versatile discs (DVDs) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • various storage media described herein may represent one or more devices and / or other machine-readable media used to store information.
  • machine-readable medium may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instruction (s) and / or data.
  • the communication method of the present application can be used for transmission of multiple types of services.
  • the multiple types of services may include, but are not limited to: a. Ultra high reliability and low latency communication (URLLC) business.
  • the application scenarios can include eMBB and URLLC, and can be used from throughput, delay, and connection density.
  • the 8 dimensions including the improvement of spectrum efficiency and the definition of the capacity requirements for 5G networks.
  • eMBB services mainly require large rates, wide coverage, transmission delay, and mobility.
  • the main requirements of the URLLC service are extremely high reliability, extremely low mobility, and transmission delay.
  • the wireless air interface is required to achieve 99.999% transmission reliability within 1 millisecond (ms).
  • FIG. 1 is an exemplary architecture diagram of a communication system 100 according to an embodiment of the present application.
  • the method in the embodiment of the present application can be applied to the communication system 100 shown in FIG. 1.
  • the communication system 100 to which the methods of the embodiments of the present application can be applied may include more or fewer network devices or terminal devices.
  • the network device or terminal device in FIG. 1 may be hardware, software divided by functions, or a combination of the two.
  • the network equipment or terminal equipment in FIG. 1 can communicate with each other through other equipment or network elements.
  • the network device 110 and the terminal devices 101 to 106 form a communication system 100.
  • the network device 110 may send downlink data to the terminal device 101 to the terminal device 106.
  • the terminal device 101 to the terminal device 106 may also send uplink data to the network device 110.
  • the terminal devices 101 to 106 may be, for example, a cellular phone, a smart phone, a portable computer, a handheld communication device, a handheld computing device, a satellite radio, a global positioning system, a PDA, and / or a wireless communication system 100. Any other suitable device for communication.
  • the communication system 100 may be a PLMN network, a device-to-device (D2D) network, a machine-to-machine (M2M) network, an IoT network, or other networks.
  • D2D device-to-device
  • M2M machine-to-machine
  • IoT IoT network
  • the terminal devices 104 to 106 may also constitute a communication system.
  • the terminal device 105 may send downlink data to the terminal device 104 or the terminal device 106.
  • the transmission of services can be based on network device scheduling.
  • the upper-layer data packets can be divided into small data packets in units of transmission blocks when scheduling at the physical layer.
  • a basic time unit can be a slot or a subframe.
  • the duration of a subframe in the time domain can be 1 millisecond (ms).
  • a subframe can include 14 time domain symbols.
  • a time slot can include 7 or 14 time domain symbols.
  • the transmission time interval transmission time interval, TTI
  • TTI transmission time interval
  • CFI control format indicator
  • a network device can send DCI in the PDCCH domain, and the DCI can be used to instruct the terminal device to receive time-frequency domain resources of the PDSCH, and the necessary information required by the terminal device to demodulate the PDSCH.
  • the network device may also perform scheduling based on a shorter time scheduling unit.
  • a network device can schedule a time slot or 2 to 3 time domain symbols as a basic time unit.
  • a time scheduling unit shorter than 1 ms can be referred to as a subslot or a short transmission time interval (sTTI).
  • sTTI short transmission time interval
  • this application uniformly uses a subslot to represent a time scheduling unit shorter than 1 ms. .
  • a downlink subframe can include 14 time-domain symbols, which are numbered 0 to 13 respectively. According to different values of the CFI, the downlink subframe can be divided into 6 lengths of 2 or 3. A subslot of time domain symbols.
  • subslot in the embodiments of the present application may also be referred to as a subslot.
  • CFI> 1 subslot # 0 is completely occupied by the PDCCH domain, so it cannot be used. Transmission of PDSCH.
  • subslot numbers subslot # 0 ⁇ # 5 in FIG. 2 are physical numbers, not logical numbers, that is, when CFI takes a certain value, the position of each subslot, the corresponding number, and its included
  • Subslot # 1 includes three time-domain symbols numbered 2, 3, and 4. As shown in FIG. 2, the positions of subslots # 2 to # 5 and the number of time-domain symbols included in them will not change due to different CFI values.
  • the subslot may further include a resource block (resource block, RB) set, and the RB set may be a time-frequency domain resource in the subslot.
  • a network device can configure one or two RB sets for a terminal device through high-level signaling.
  • one subslot may include two RB sets, and the two RB sets may overlap in the time-frequency domain.
  • the RB set in a subslot can start with the first time domain symbol in the time domain included in the subslot and end with the first or second time domain symbol in the time domain included in the subslot.
  • the union of these two RB sets can be referred to as the sPDCCH domain of the subslot.
  • RB set 1 in subslot # 1 may start with the time domain symbol numbered 3, and may end with the time domain symbol numbered 4.
  • RB set 2 can start with the time domain symbol numbered 3 and can end with the time domain symbol numbered 3.
  • subslot # 0 may not include the RB set.
  • the terminal device may detect the DCI on the RB set configured for the network device, where the DCI may be called sDCI. If subslot # 0 does not include the RB set, then on subslot # 0, the terminal device can detect DCI on the PDCCH domain.
  • the subslot # 1 includes three time-domain symbols with the number 2, the 3, and the number 4. If the subslot # 1 includes two RB set, then RB set 1 in subslot # 1 can start with the time-domain symbol numbered 2 and end with time-domain symbol with the number 3, and RB set2 in subslot # 1 can start with the number 2 The time domain symbol ends with the number 2 time domain symbol.
  • the DCI detected by the terminal device in the PDCCH domain is referred to as sDCI.
  • resources not occupied by sDCI in the RB sets of subslots # 1 to # 5 may be used to transmit sPDSCH.
  • sPDSCH overlaps with RB1, RB1, and RB2 in the time-frequency domain.
  • the overlapped portion of sPDSCH and RB1 in the time-frequency domain does not send sDCI.
  • the overlapping part with RB set 2 in the domain is used to send sDCI. Therefore, the sPDSCH can be transmitted with the overlapping part with RB set 1 in the time-frequency domain.
  • the sPDSCH may be scheduled through the sDCI in the RB set 1.
  • the network device and the terminal device receiving the PDSCH can align the coding rate used for this downlink transmission.
  • the process of aligning the coding rate used for downlink transmission here can be called rate matching.
  • rate matching can be achieved through the following processes:
  • the network device can configure the rate matching scheme to the terminal device through high-level signaling, which is indicated by high-level signaling or physical layer signaling;
  • the subsequent network equipment may indicate the rate matching scheme to the terminal device through high-level signaling. For example, it may indicate to the terminal device through high-level signaling. Whether the sPDSCH can be transmitted in the time-frequency domain overlapping with the RB set;
  • the sDCI can be used to indicate the rate matching scheme, and subsequent network devices can use the instruction information to the terminal device. Indicates the rate matching scheme.
  • 2-bit instruction information may be added to the sDCI of subslots # 1 to # 5.
  • the 2-bit instruction information may correspond to two RB sets in the subslot in which the sDCI is located, respectively, and are used to indicate whether the sPDSCH overlaps with the RB set 1 in the time-frequency domain, and The part that overlaps with RB 2 in the frequency domain is transmitted.
  • the 2-bit indication information introduced in the sDCI of subslots # 1 to # 5 can be referred to as the Available / Unused sPDCCH resource indication bit field, which can be simply referred to as Available / Unused. area.
  • the DCI in the PDCCH domain does not include the 2-bit indication information.
  • the network device may indicate the rate matching scheme to the terminal device through physical layer signaling.
  • the DCI sent on subslot # 0 can be Nbit, and accordingly, the sDCI sent on subslot # 1 to # 5 can be N + 2bit, where Is a positive integer.
  • one DCI can only schedule PDSCH in one TTI or subslot.
  • a PDSCH repetition (PDSCH) repetition technology may be introduced, that is, a network device may activate a PDSCH repetition to a terminal device through high-level signaling. Thereafter, the network device can use one DCI to schedule multiple PDs in multiple TTIs or subslots for the terminal device.
  • 2-bit instruction information may be added to the DCI, and the instruction information is used to indicate the number of TTIs or subslots scheduled by the DCI. Or it can also be said that the indication information is used to indicate the number of repeated transmissions of the PDSCH scheduled by the DCI.
  • the number of repeated PDSCH transmissions indicated by the indication information includes the first transmission of the PDSCH.
  • the terminal device may obtain the rate matching scheme from high-level signaling. Further, other subslots that repeatedly transmit PDSCH may perform rate matching according to the rate matching scheme.
  • the network device when a network device configures a rate matching scheme to a terminal device through high-level signaling and is indicated by physical layer signaling, the network device may indicate the sPDSCH to the terminal device through the 2-bit instruction information in the sDCI. Whether it can occupy RB set resources.
  • the terminal device can enable PDSCH repetition, and if the PDSCH is transmitted K times repeatedly, the first subslot transmitting the PDSCH can be matched by the sDCI in the subslot, while all other K-1 subslots Without DCI.
  • other K-1 subslots may all perform rate matching according to the rate matching scheme of the sDCI in the first subslot.
  • the DCI in the PDCCH domain does not include the 2-bit indication information, as shown in FIG. 5, when the DCI indicating the number of repeated PDSCH transmissions is sent in the PDCCH domain, the other K-1 subslots mentioned above cannot obtain a rate matching scheme.
  • this application proposes a communication method.
  • a rate matching scheme is indicated to a terminal device by physical layer signaling
  • the DCI indicating the PDSCH resource is sent in the PDCCH domain
  • other subslots of repeated transmission can obtain rate matching.
  • FIG. 6 is a schematic flowchart of a communication method according to an embodiment of the present application. It should be understood that FIG. 6 shows the steps or operations of the communication method, but these steps or operations are merely examples. Embodiments of the present application may also perform other operations or variations of the operations in FIG. 6, or not all steps Need to be performed, or these steps can be performed in another order.
  • the network device sends first configuration information, where the first configuration information includes a physical layer multiplexing instruction.
  • the physical layer multiplexing instruction is used to indicate that a rate matching scheme of the first type of short physical downlink shared channel sPDSCH is indicated by physical layer signaling.
  • One type of sPDSCH is an sPDSCH carried in a subslot subslot whose number is not zero. Accordingly, the terminal device receives the first configuration information.
  • the physical layer reuse indication (L1-based reuse indication) may be used to indicate that the rate matching scheme of the sPDSCH carried in the sub-slot subslot with a number other than 0 is indicated by higher layer signaling or physical layer signaling.
  • the physical layer multiplexing indication is used to indicate that the rate matching scheme of the sPDSCH carried in the sub-slot subslot whose number is not 0 is indicated by the physical layer signaling.
  • the first configuration information may be sent through high-level signaling.
  • the first configuration information may be carried in RRC signaling.
  • the above-mentioned first type of sPDSCH may refer to an sPDSCH carried in a subslot whose number is not 0.
  • the subslot number other than 0 here can include subslot # 1 ⁇ # 5.
  • the network device may further send second configuration information, where the second configuration information is used to configure a resource block set, and the resource block set is used to carry a short physical downlink control channel sPDCCH. Accordingly, the terminal device can receive the second configuration information.
  • the terminal device may configure the resource block set according to the second configuration information.
  • the physical layer signaling may be DCI.
  • the DCI may include resource allocation information, and the resource allocation information may be used to indicate a single sPDSCH or multiple sPDSCH initial sPDSCH resources. It should be understood that the initial sPDSCH resource may be the sPDSCH resource indicated in the DCI, and the sPDSCH resource here is not subjected to rate matching.
  • the network device sends downlink control information DCI.
  • the DCI is carried in the physical downlink control channel PDCCH domain.
  • the DCI is used to schedule a single sPDSCH carried in the subslot numbered 0, or the DCI is used to schedule the information including the bearer in the numbered 0.
  • the numbered subslot may be the first subslot of each subframe, and the subslot may also be called a subslot.
  • one downlink subframe may be divided into six subslots with a length of two or three time domain symbols.
  • subslots # 0 to # 5 can be used to number each subslot.
  • the numbers subslot # 0 ⁇ # 5 here are physical numbers, not logical numbers, that is, when CFI takes a certain value, the position of each subslot, the corresponding number, and the time domain symbols included in it The number can be fixed.
  • the PDCCH domain may start at the first symbol of each subframe and end at the first, second, or third symbol of each subframe.
  • the symbol here may be a time domain symbol in a subframe. That is, the PDCCH domain may include resources included in the first 1 to 3 time domain symbols in the time domain among the 14 time domain symbols included in one subframe.
  • the network device may further send third configuration information, where the third configuration information may be used to indicate a transmission time interval and activate repeated transmission of the PDSCH.
  • the third configuration information may indicate that the transmission time interval is N subslots, and repeated transmission of PDSCH is activated, and wherein N is a positive integer and 1 subslot may be 2 or 3 time domain symbols. Accordingly, the terminal device can receive the third configuration information.
  • the terminal device may determine the number of repeated transmissions of PDSCH according to physical layer signaling. At this time, if the physical layer signaling indicates the PDSCH If the number of repeated transmissions is once, DCI can schedule a single sPDSCH carried in subslot # 0; if physical layer signaling indicates that the number of repeated transmissions of PDSCH is multiple, DCI can schedule multiple transmissions, including the sPDSCH carried in subslot # 0. SPDSCH.
  • the terminal device may determine the number of times the PDSCH is repeatedly transmitted through the DCI.
  • the third configuration information may indicate that the transmission time interval of the PDSCH is N slots, where 1 slot may be 7 time domain symbols.
  • a subslot can include two RB sets, which are RB set 1 and RB set 2.
  • the terminal device may determine the rate matching scheme of the first type of sPDSCH according to the multiplexing indication information in the DCI.
  • the multiplexing indication information in the DCI can indicate whether the first type of sPDSCH can overlap with RB set 1 in the time-frequency domain and the portion overlapped with RB set 2 in the time-frequency domain, respectively.
  • the multiplexing instruction information may be 2 bits, and the 2-bit multiplexing instruction information may be corresponding to RB set 1 and RB set 2 respectively. These 2 bits are used to indicate whether the first type of sPDSCH can be transmitted in the time-frequency domain overlapping with RB set 1 and the time-frequency domain overlapping with RB set 2.
  • the above-mentioned first type of sPDSCH may refer to the sPDSCH actually carried in subslot # 1 to # 5, and the initial sPDSCH resource may be the sPDSCH resource indicated in DCI, that is, the first type of sPDSCH may be the initial sPDSCH resource after rate matching , SPDSCH resources used in actual transmission in subslot # 1 ⁇ # 5.
  • the multiplexing indication information can indicate whether the overlapping part of the initial sPDSCH resource and the RB set can be used to transmit the sPDSCH.
  • the terminal device may determine the rate matching method of the first type of sPDSCH according to the multiplexing indication information and the initial sPDSCH resource.
  • the terminal device may determine a rate matching scheme of the first type of sPDSCH according to high-level signaling.
  • the high-level signaling can indicate whether the first type of sPDSCH can overlap with the RB set 1 in the time-frequency domain and the part that overlaps with the RB set 2 in the time-frequency domain.
  • the high-level signaling may include 2-bit indication information.
  • the 2-bit instruction information can be corresponding to RB set1 and RB set2 respectively. This 2-bit instruction information is used to indicate whether the first type of sPDSCH can be transmitted in the time-frequency domain overlapping with RB1 and the time-frequency domain overlapping with RB2.
  • higher layer signaling may indicate whether the overlapping part of the initial sPDSCH resource and the RB set can be used to transmit the sPDSCH.
  • the terminal device may determine the rate matching method of the first type of sPDSCH according to the high-level signaling and the initial sPDSCH resource.
  • the above embodiment describes in detail how the first type of sPDSCH performs rate matching when the DCI is used to schedule the plurality of sPDSCH including the sPDSCH carried in the subslot numbered 0. Next, the subslot # will be described. 0 How to transfer at this time.
  • the PDSCH resource used on subslot # 0 may be the initial PDSCH resource.
  • DCI is carried in the PDCCH domain.
  • the DCI can schedule sPDSCH in subslot # 0 and subslot # 1, and repeats the sPDSCH transmission twice as an example.
  • the sPDSCH in subslot # 1 can be based on the DCI.
  • the multiplexing indication information or high-level signaling performs rate matching.
  • the sPDSCH resource used on subslot # 0 may be the initial sPDSCH resource, that is, the sPDSCH transmitted on subslot # 0 may be the sPDSCH resource indicated by the DCI (the initial sPDSCH resource). ) For transmission.
  • the number of repeated transmissions of the sPDSCH may be greater than or equal to two times, and the two times herein are merely examples and are not limited.
  • the sPDSCH resource used on subslot # 0 is the initial sPDSCH resource
  • the downlink resources in subslot # 0 can be fully used to transmit the sPDSCH, thereby improving the resource utilization rate.
  • the sPDSCH resource used on subslot # 0 is the initial sPDSCH resource, the complexity of network device scheduling can be reduced.
  • the rate matching scheme of the sPDSCH transmitted on subslot # 0 may be the same as the rate matching scheme of the first type of sPDSCH.
  • DCI is carried in the PDCCH domain, and the DCI can schedule sPDSCH in subslot # 0 and subslot # 1.
  • the sPDSCH in subslot # 1 can perform rate matching according to the multiplexing instruction information or high-level signaling in the DCI.
  • the rate matching scheme of the sPDSCH transmitted on subslot # 0 can be the same as the rate matching scheme of the sPDSCH transmitted on subslot # 1, that is, the subslot
  • the sPDSCH in # 0 can be transmitted on the same resource as the sPDSCH in subslot # 1.
  • the number of repeated transmissions of the sPDSCH may be greater than or equal to two times, and the two times herein are merely examples and are not limited.
  • the terminal device can receive After all the sPDSCHs transmitted K times are combined, the K transmissions sPDSCH are combined and then demodulated, which can reduce the processing complexity of the terminal equipment.
  • the multiplexing indication information may be a predefined value.
  • the multiplexing indication information may be a predefined value.
  • the multiplexing indication information may become a virtual cyclic redundancy check code ( cyclic redundancy check (CRC).
  • CRC cyclic redundancy check
  • the multiplexing indication information may be a predefined value of 2 bits.
  • the multiplexing indication information may be predefined as "00”, “01”, “10”, or "11".
  • the multiplexing indication information may be located in the DCI.
  • the DCI may include 2 bits of known information.
  • the terminal device as the receiving end, can determine the 2-bit known information in advance, and verify the DCI based on the 2-bit known information.
  • the network device may determine the multiplexing instruction information as "00" in advance, and send the multiplexing instruction information to the terminal device. Due to noise and other reasons, when the terminal device estimates the DCI, it may be concluded that the DCI has a 50% probability of 10XXXX and a 40% probability of 00YYYY. It is assumed that the positions of "10" and "00" are multiplexing instruction information. Location. At this time, if there is no predefined multiplexing indication information, DCI may be misjudged as 10XXXX, and since the known multiplexing indication information is "00", DCI can be correctly judged as 00YYYY.
  • the multiplexing indication information in the DCI is a predefined value (known information)
  • the reliability of the DCI estimation can be improved.
  • a network device indicates a rate matching scheme to a terminal device through high-level signaling
  • different rate matching schemes can be configured for multiple subslots through high-level signaling.
  • multiple subslots can be regarded as a subslot set, that is, a subslot set is configured through high-level signaling.
  • a downlink subframe including 6 subslots can be regarded as a set, and different rate matching schemes can be configured for each subslot in the subslot set through high-level signaling.
  • a downlink subframe may include 6 subslots, and the 6 subslots in the downlink sub-frame are regarded as a subslot set. At this time, different rates may be configured for the 6 subslots in the subslot set through high-level signaling. Matching scheme.
  • high-level signaling may use a 2-bit instruction to indicate a rate matching scheme for a subslot.
  • the high-level signaling can configure the rate matching scheme of the six subslots in the subslot set as ⁇ "10", “00”, “10”, “00”, “10”, “00” ⁇ , where ⁇ " "10", “00”, “10”, “00”, “10”, “00” ⁇ corresponds to the 6 subslots in a downlink subframe, and is used to indicate the 6 subslots in the downlink subframe.
  • Rate matching scheme may use a 2-bit instruction to indicate a rate matching scheme for a subslot.
  • FIG. 9 is a schematic block diagram of a communication device 900 according to an embodiment of the present application. It should be understood that the communication device 900 is only an example. The communication device in the embodiment of the present application may further include other modules or units, or include modules similar in function to each module in FIG. 9, or not all modules in FIG. 9.
  • the receiving module 910 is configured to receive first configuration information from a network device, where the first configuration information includes a physical layer multiplexing instruction, and the physical layer multiplexing instruction is used to indicate a rate match of the first type of short physical downlink shared channel sPDSCH.
  • the solution is indicated by physical layer signaling, and the first type of sPDSCH is an sPDSCH carried in a subslot subslot whose number is not 0;
  • the receiving module 910 is further configured to receive downlink control information DCI from a network device, where the DCI is carried in a physical downlink control channel PDCCH domain, and the DCI is used to schedule a single sPDSCH carried in a subslot numbered 0, or the DCI For scheduling multiple sPDSCH including sPDSCH carried in subslot numbered 0;
  • a processing module 920 configured to: when the DCI is used to schedule the multiple sPDSCHs including the sPDSCH carried in the subslot with the number 0, determine the first sPDSCH according to the multiplexing indication information in the DCI A rate matching scheme for a type of sPDSCH, or a rate matching scheme for the first type of sPDSCH according to high-level signaling.
  • the numbered subslot is the first subslot of each subframe, and the PDCCH domain starts at the first symbol of each subframe.
  • the receiving module 910 is further configured to receive second configuration information from a network device, where the second configuration information is used to configure a resource block set, and the resource block set is used to carry a short physical downlink control channel sPDCCH,
  • the DCI includes resource allocation information, the resource allocation information is used to indicate an initial sPDSCH resource of the single sPDSCH or the multiple sPDSCHs, and the multiplexing indication information or the high-level signaling is used to indicate the initial sPDSCH whether the overlapping part of the sPDSCH resource and the set of resource blocks can be used for transmitting the sPDSCH;
  • the processing module 920 is specifically configured to determine a rate matching method of the first type of sPDSCH according to the multiplexing indication information and the initial sPDSCH resource, or according to the high-level signaling and the initial sPDSCH resource.
  • the PDSCH resource used on the subslot with the number 0 is the initial PDSCH resource.
  • the rate matching scheme of the PDSCH transmitted on the subslot numbered 0 is the same as the rate matching scheme of the first type of sPDSCH.
  • the multiplexing indication information is located in the DCI.
  • the multiplexing indication information is a predefined value.
  • the communication device 900 may be configured to perform the steps performed by the terminal device in the method described in FIG. 6, and for brevity, details are not described herein again.
  • FIG. 10 is a schematic block diagram of a communication device 1000 according to an embodiment of the present application. It should be understood that the communication device 1000 is only an example. The communication device according to the embodiment of the present application may further include other modules or units, or include modules similar in function to each module in FIG. 10, or may not include all modules in FIG. 10.
  • the sending module 1010 is configured to send the first configuration information to the terminal device, where the first configuration information includes a physical layer multiplexing indication, and the physical layer multiplexing indication is used to indicate a rate of a first type of short physical downlink shared channel sPDSCH resource.
  • the matching mode is indicated by physical layer signaling, and the first type of sPDSCH resource is an sPDSCH resource carried in a subslot subslot whose number is not 0;
  • the processing module 1020 is configured to generate multiplexing indication information or high-level signaling, where the multiplexing indication information or the high-level signaling is used to determine a rate matching scheme for the first type of sPDSCH resources scheduled by the DCI scheduling of the downlink control information.
  • the DCI is carried in a physical downlink control channel PDCCH domain, and the DCI is used to schedule a single sPDSCH carried in the subslot numbered 0, or the DCI is used to schedule a subslot including the subslot numbered 0. multiple sPDSCH including sPDSCH;
  • the sending module 1010 is further configured to send the DCI or high-level signaling to a terminal device, where the DCI includes the multiplexing indication information.
  • the numbered subslot is the first subslot of each subframe, and the PDCCH domain starts at the first symbol of each subframe.
  • the sending module 1010 is further configured to send second configuration information to the terminal device, where the second configuration information is used to configure a resource block set, and the resource block set is used to bear short Physical downlink control channel sPDCCH, the DCI includes resource allocation information, the resource allocation information is used to indicate an initial sPDSCH resource of the single sPDSCH or the multiple sPDSCHs, and the indication information is used to indicate the initial sPDSCH resource Whether the overlapping part with the resource block set can be used for transmitting sPDSCH.
  • the second configuration information is used to configure a resource block set
  • the resource block set is used to bear short Physical downlink control channel sPDCCH
  • the DCI includes resource allocation information
  • the resource allocation information is used to indicate an initial sPDSCH resource of the single sPDSCH or the multiple sPDSCHs
  • the indication information is used to indicate the initial sPDSCH resource Whether the overlapping part with the resource block set can be used for transmitting sPDSCH.
  • the PDSCH resource used on the subslot with the number 0 is the initial PDSCH resource.
  • the rate matching scheme of the PDSCH transmitted on the subslot numbered 0 is the same as the rate matching scheme of the first type of sPDSCH.
  • the indication information is located in the DCI.
  • the indication information is a predefined value.
  • the communication device 1000 may be configured to perform the steps performed by the network device in the method described in FIG. 6. For brevity, details are not described herein again.
  • FIG. 11 is a schematic structural diagram of a communication device 1100 according to an embodiment of the present application. It should be understood that the communication device 1100 shown in FIG. 11 is merely an example, and the communication device in the embodiment of the present application may further include other modules or units, or include modules similar in function to each module in FIG. 11.
  • the communication device 1100 may include one or more processors 1110, one or more memories 1120, a receiver 1130, and a transmitter 1140.
  • the receiver 1130 and the transmitter 1140 may be integrated together and called a transceiver.
  • the memory 1120 is configured to store a program code executed by the processor 1110.
  • the processor 1110 may have a memory 1120 integrated therein, or the processor 1110 may be coupled to one or more memories 1120 to retrieve instructions in the memory 1120.
  • the processor 1110 may be used to implement operations or steps that can be implemented by the processing module 920 in FIG. 9, and the receiver 1130 may be used to implement operations or steps that can be implemented by the receiving module 910 in FIG. 9.
  • the processor 1110 may be used to implement operations or steps that can be implemented by the processing module 1020 in FIG. 10 and the transmitter 1140 may be used to implement operations or steps that can be implemented by the sending module 1010 in FIG. 10.
  • the processor in the embodiment of the present application may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSPs), and application-specific integrated circuits. (application specific integrated circuit (ASIC)), ready-made programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrical memory Erase programmable read-only memory (EPROM, EEPROM) or flash memory.
  • the volatile memory may be a random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access Access memory
  • double SDRAM double SDRAM
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • enhanced SDRAM enhanced SDRAM
  • SLDRAM synchronous connection dynamic random access memory Fetch memory
  • direct RAMbus RAM direct RAMbus RAM, DR RAM
  • the above embodiments may be implemented in whole or in part by software, hardware, firmware, or any other combination.
  • the above embodiments may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions or computer programs.
  • the processes or functions according to the embodiments of the present application are wholly or partially generated.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server, or data center Transmission by wire (for example, infrared, wireless, microwave, etc.) to another website site, computer, server, or data center.
  • 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, a data center, and the like, including one or more sets of available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium.
  • the semiconductor medium may be a solid state drive.
  • the size of the sequence numbers of the above processes does not mean the order of execution.
  • the execution order of each process should be determined by its function and internal logic, and should not deal with the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of this application is essentially a part that contributes to the existing technology or a part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application.
  • the aforementioned storage media include: U disks, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks or compact discs and other media that can store program codes .

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Abstract

La présente invention concerne un procédé de communication et un appareil de communication, comprenant : la réception de premières informations de configuration en provenance d'un dispositif de réseau, les premières informations de configuration comprenant une indication de multiplexage de couche physique ; l'indication de multiplexage de couche physique est utilisée pour indiquer que le schéma de mise en correspondance de débit d'un premier type de canal physique partagé de liaison descendante court (sPDSCH) est indiqué par une signalisation de couche physique, le premier type de sPDSCH étant un sPDSCH transporté dans un sous-créneau numéroté non 0 ; la réception des informations de commande de liaison descendante (DCI) provenant d'un dispositif de réseau, les DCI étant transportées dans le canal physique de commande de liaison descendante (PDCCH) ; les DCI sont utilisées pour planifier un seul sPDSCH transporté dans un sous-créneau numéroté 0 ou les DCI sont utilisées pour planifier une pluralité de sPDSCH comprenant un sPDSCH transporté dans un sous-créneau numéroté 0 ; si les DCI sont utilisées pour planifier une pluralité de sPDSCH comprenant un sPDSCH transporté dans un sous-créneau numéroté 0, la détermination alors d'un schéma de mise en correspondance de débit pour le premier type de sPDSCH conformément aux informations d'indication de multiplexage dans les DCI ou la détermination d'un schéma de mise en correspondance de débit du premier type de sPDSCH conformément à une signalisation de haut niveau ; ledit procédé de communication peut être utilisé lorsque des DCI sont transmises dans le domaine PDCCH, de telle sorte que le schéma de mise en correspondance de débit est obtenu pour d'autres sous-créneaux de transmission répétée.
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