WO2018059511A1 - Procédé de planification de ressources de liaison descendante, dispositif terminal et dispositif réseau - Google Patents

Procédé de planification de ressources de liaison descendante, dispositif terminal et dispositif réseau Download PDF

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Publication number
WO2018059511A1
WO2018059511A1 PCT/CN2017/104075 CN2017104075W WO2018059511A1 WO 2018059511 A1 WO2018059511 A1 WO 2018059511A1 CN 2017104075 W CN2017104075 W CN 2017104075W WO 2018059511 A1 WO2018059511 A1 WO 2018059511A1
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Prior art keywords
indication information
post
scheduling indication
scheduling
terminal device
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PCT/CN2017/104075
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English (en)
Chinese (zh)
Inventor
吕永霞
官磊
马莎
马蕊香
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华为技术有限公司
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Priority claimed from CN201611118002.6A external-priority patent/CN107889268A/zh
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP17854961.4A priority Critical patent/EP3506700B1/fr
Publication of WO2018059511A1 publication Critical patent/WO2018059511A1/fr
Priority to US16/369,291 priority patent/US20190230694A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, a terminal device, and a network device for downlink scheduling resources.
  • eMBB Enhanced Mobile Broadband
  • URLLC Ultra-reliable Low Latency Communication
  • Massive MTC Massive machine-type communication
  • Massive MTC Massive MTC
  • the network device in the long term evolution (LTE) communication system may send a downlink control channel to the terminal device to schedule the terminal device to send the uplink of the current service on the time-frequency resource indicated by the downlink control channel.
  • the embodiments of the present invention provide a method for downlink scheduling resources, a terminal device, and a network device, which can improve flexibility in allocating resources.
  • a method for downlink scheduling resources includes: receiving, by a terminal device, first pre-scheduling indication information sent by a network device, where the first pre-scheduling indication information is used to indicate that the terminal device receives the first a downlink data channel, the terminal device receiving, according to the first pre-scheduling indication information, a downlink signal sent by the network device, where the downlink signal sent by the network device includes the first downlink data channel; The terminal device monitors at least one post-scheduling indication information in the downlink signal sent by the network device, where the at least one post-scheduling indication information is used by the terminal device to determine that the first downlink data channel is occupied in the received downlink signal. resource of.
  • the at least one post-scheduling indication information is located after the first pre-scheduling indication information, and the first pre-scheduling indication information does not need to indicate the ending location of the time domain resource, so that the network device can flexibly perform resources according to requirements.
  • Allocation which increases the flexibility of resource allocation, has high compatibility and scalability.
  • the resource may be a time domain resource, or the resource may be a frequency domain resource, or the resource may be a time domain resource and a frequency domain resource.
  • the first pre-scheduling indication information is carried by a physical control channel
  • the at least one post-scheduling indication information is carried by a physical control channel
  • the first pre-scheduling indication information includes a physical downlink control channel PDCCH.
  • the method before the receiving, by the terminal device, the first pre-scheduling indication information sent by the network device, the method further includes: the terminal device monitoring the pre-scheduling indication information.
  • the terminal device monitors pre-scheduling indication information, including the terminal device periodically monitoring pre-scheduling indication information.
  • the first pre-scheduling indication information includes at least one of the following information: a start of a time domain resource allocated by the network device to the first downlink data channel of the terminal device a location, a frequency domain location allocated by the network device for the first downlink data channel, a monitoring period in which the terminal device monitors the at least one post-scheduling indication information, and a size of a time domain resource allocated by the network device to the first downlink data channel.
  • the at least one post-scheduling indication information includes first post-scheduling indication information corresponding to the first pre-scheduling indication information, where the first post-scheduling indication information is used to indicate that The time domain resource occupied by the first downlink data channel in the downlink signal received by the terminal device in a period of time, the first time period is that the downlink signal sent by the network device is received from the terminal device to The time period in which the terminal device monitors the first post-scheduling indication information, where the first post-scheduling indication information is further used to indicate that the first downlink data channel is transmitted.
  • the time domain resources allocated by the network device for the first downlink data channel may not be continuous, and the flexibility of the network device to allocate time domain resources may be improved.
  • the first post-scheduling indication information indicates that the first downlink data channel is transmitted (or indicates the end position of the first downlink data channel time domain resource) and the time domain resource occupied by the first downlink data channel, and the method operates. High flexibility, high compatibility and scalability.
  • the first post-scheduling indication information includes an end identifier that is used to identify that the first downlink data channel is transmitted.
  • the first post-scheduling indication information and the first pre-scheduling indication information comprise the same or corresponding identifiers.
  • the first post-scheduling indication information and the first pre-scheduling indication information include the same transmission progress ID; or the first post-scheduling indication information and the first pre-scheduling The indication information is scrambled using the same scrambling code.
  • the first post-scheduling indication information includes N occupation indication information, and the N occupation indication information and the N time domain units occupied by the downlink signal received by the terminal device are Correspondingly, each occupation indication information is used to indicate whether the corresponding time domain unit is used to transmit the first downlink data channel.
  • the first post-scheduling indication information includes N occupation indication information corresponding to the one of the N time domain units, so that the terminal device can determine whether the corresponding time domain unit is used according to each occupation indication information. Transmitting the first downlink data channel.
  • the first pre-scheduling indication information is further used to indicate that the terminal device monitors an initial monitoring location of the first post-scheduling indication information.
  • the terminal may monitor the first post-scheduling indication information from the initial monitoring location according to the indication of the first pre-scheduling indication information, which can reduce the monitoring times of the terminal device monitoring the first post-scheduling indication information, and improve Monitoring efficiency.
  • the jth post scheduling indication information in the at least one post scheduling indication information is located in a preset of the j+1th time domain scheduling unit occupied by the downlink signal received by the terminal device a location, where the jth post scheduling indication information is used by the terminal device to determine a time domain resource occupied by the first downlink data channel in a downlink signal received in the jth time domain scheduling unit, Where j ⁇ 1.
  • the post scheduling indication information in each time domain scheduling unit is used by the terminal device to determine a time domain occupied by the first downlink data channel in the last time domain scheduling unit of each time domain scheduling unit. unit.
  • the terminal device may obtain the corresponding post-scheduling indication information at the preset location of each time domain scheduling unit, which can improve the accuracy of the scheduling information after the terminal device acquires the post instruction information.
  • the jth post scheduling indication information is carried on the downlink control channel PDCCH in the j+1th time domain scheduling unit.
  • the PDCCH of the j+1th time domain scheduling unit carries the post scheduling indication information corresponding to the jth time domain scheduling unit, and the scheme has good operability.
  • the at least one post-scheduling indication information includes first post-scheduling indication information corresponding to the first pre-scheduling indication information, where the first post-scheduling indication information is used to indicate the The first downlink data channel is transmitted; the first post-scheduling indication information is the last post-scheduling indication information in the at least one post-scheduling indication information.
  • the first post-scheduling indication information is used to indicate the end position of the time domain resource of the first downlink data channel, which can improve the flexibility of the network device to allocate the time domain resource, and the time domain of each time domain scheduling unit.
  • the resource occupation status is indicated by the corresponding post-scheduling indication information, so that the terminal device can efficiently determine the time domain unit for transmitting the first downlink data channel.
  • the jth post scheduling indication information is used to indicate that the first downlink data channel is occupied in a downlink signal received in the jth time domain scheduling unit. Time domain resources.
  • the jth post scheduling indication information directly indicates the time-frequency resource occupied by the first downlink data channel in the jth time domain scheduling unit, so that the terminal device can directly according to the jth post scheduling indication information.
  • the first pre-scheduling indication information is used to indicate a size of a time domain resource allocated by the network device to the first downlink data channel
  • the method further includes: The size of the time domain resource indicated by the first pre-scheduled indication information and the size of the time domain resource occupied by the first downlink data channel determined by the terminal device according to the at least one post-scheduling indication information, Determining whether the first downlink data channel is completely transmitted; and when the terminal device determines that the first downlink data channel is not transmitted, the terminal device continues to monitor the post scheduling indication information.
  • the terminal device can determine the time domain resource occupied by the first downlink data channel in the last time domain scheduling unit, so that the terminal device can obtain the first time efficiently.
  • Line data channel
  • the last post-scheduling indication information of the at least one post-scheduling indication information is the first post-scheduling indication information
  • the method further includes: the terminal device according to the First post adjustment The post-scheduling indication information before the degree indication information determines that the first downlink data channel is not transmitted, and the terminal device determines, according to the at least one post-scheduling indication information, that the first downlink data channel is transmitted.
  • the jth post scheduling indication information is used to indicate a time domain unit that is reallocated in the jth time domain scheduling unit, in other words, the first The j post scheduling indication information is used to indicate a time domain resource that is not occupied by the first downlink data channel in the downlink signal received in the jth time domain scheduling unit.
  • the jth post scheduling indication information indicates the time domain resource that is reallocated in the jth time domain scheduling unit, and the terminal device may determine the jth time domain scheduling unit according to the jth post scheduling indication information.
  • the resource that is not reallocated is used to transmit the first downlink data channel, and the indication manner is simple and easy to implement.
  • the jth post scheduling indication information includes M occupation indication information, and the M occupation indication information and the M time domain units included in the jth time domain scheduling unit.
  • each occupation indication information is used by the terminal device to determine whether the corresponding time domain unit is used to transmit the first downlink data channel.
  • the terminal device determines the time domain resource occupied by the first downlink data channel in the corresponding time domain scheduling unit by using the M occupation indication information included in each of the post scheduling indication information, and the method can improve the terminal.
  • the j-th post-scheduling indication information in the at least one post-scheduling indication information is located in a pre-jth time domain scheduling unit occupied by the downlink signal received by the terminal device a location, where the jth post scheduling indication information is used by the terminal device to determine a time domain resource occupied by a downlink data channel in a downlink signal received in the jth time domain scheduling unit, where j ⁇ 1.
  • the terminal device may determine the time domain resource occupied by the first downlink data channel in the jth time domain scheduling unit by using the post scheduling indication information transmitted by the jth time domain scheduling unit, so as to facilitate the terminal device.
  • the time domain resources occupied by the first downlink data channel in each time domain scheduling unit are efficiently determined according to the post scheduling indication information in each time domain scheduling unit.
  • the method further includes: the terminal device monitoring second pre-scheduling indication information in a downlink signal sent by the network device, where the second pre-scheduling indication information is used to indicate The terminal device receives the second downlink data channel.
  • the second pre-scheduling indication information is located after the first post-scheduling indication information in the time domain.
  • the terminal device monitors the second pre-scheduling indication information (ie, the new pre-scheduling indication information) while monitoring the at least one post-scheduling indication information, so that the terminal device performs the second downlink data channel (ie, the new The reception of the two downlink data channels is determined or not, and the scheduling indication information leakage monitoring phenomenon occurs.
  • the second pre-scheduling indication information ie, the new pre-scheduling indication information
  • the terminal device performs the second downlink data channel (ie, the new The reception of the two downlink data channels is determined or not, and the scheduling indication information leakage monitoring phenomenon occurs.
  • the at least one post-scheduling indication information is used by the terminal device to determine that the downlink data transmission complete post-scheduling indication information is used to instruct the terminal device to send the hybrid automatic retransmission request (HARQ) Time domain resources.
  • HARQ hybrid automatic retransmission request
  • the network device dynamically allocates the time domain resource to the first downlink data channel, and if the time domain resource that is fed back by the HARQ is indicated by the pre-scheduling, the terminal device may not receive the at least one post-scheduling.
  • the indication information needs to perform HARQ feedback. Therefore, the HARQ feedback accuracy can be improved by indicating the HARQ feedback by using the post scheduling indication information for the terminal device to determine that the downlink data transmission is completed.
  • the post scheduling indication information used by the terminal device to determine that the downlink data transmission is completed includes the first post scheduling indication information in the possible implementation manner of the first aspect.
  • a second aspect provides a method for downlink scheduling resources, where the method includes: the network device sends the first pre-scheduling indication information to a terminal device, where the first pre-scheduling indication information is used to instruct the terminal device to receive the first a downlink data channel; the network device sends a downlink signal to the terminal device, where the downlink signal includes the first downlink data channel and at least one post-scheduling indication information, where the at least one post-scheduling indication information is used And determining, by the terminal device, the resource occupied by the first downlink data channel in the received downlink signal.
  • the network device can flexibly allocate time domain resources according to requirements, thereby improving flexibility of resource allocation, and the solution has high compatibility and scalability.
  • the first pre-scheduling indication information is carried by a physical control channel
  • the at least one post-scheduling indication information is carried by a physical control channel
  • the first pre-scheduling indication information includes physical layer signaling.
  • the first pre-scheduling indication information includes a physical downlink control channel PDCCH.
  • the first pre-scheduling indication information includes at least one of the following information: a start of a time domain resource allocated by the network device to the first downlink data channel of the terminal device a location, a frequency domain location allocated by the network device for the first downlink data channel, a monitoring period in which the terminal device monitors the at least one post-scheduling indication information, and a size of a time domain resource allocated by the network device to the first downlink data channel.
  • the at least one post-scheduling indication information includes first post-scheduling indication information corresponding to the first pre-scheduling indication information, where the first post-scheduling indication information is used to indicate that The time domain resource occupied by the first downlink data channel in the downlink signal sent by the network device in a period of time, the first time period is a downlink signal sent from the network device to the network device sending station The time period of the first post-scheduling indication information, where the first post-scheduling indication information is further used to indicate that the first downlink data channel is transmitted.
  • the time domain resources allocated by the network device for the first downlink data channel may not be continuous, which improves the flexibility of the network device to allocate time domain resources.
  • the first post-scheduling indication information includes an end identifier that is used to identify that the first downlink data channel is transmitted.
  • the first post-scheduling indication information and the first pre-scheduling indication information comprise the same or corresponding identifiers.
  • the first post-scheduling indication information and the first pre-scheduling indication information include the same transmission progress ID; or the first post-scheduling indication information and the first pre-scheduling The indication information is scrambled using the same scrambling code.
  • the first post scheduling indication information includes N occupation indication information, and the N occupation indication information and the N time domain units occupied by the downlink signal sent by the network device are one by one.
  • each occupation indication information is used to indicate whether the corresponding time domain unit is used to transmit the first downlink data channel.
  • the first post-scheduling indication information includes N occupation indication information corresponding to the one of the N time domain units, so that the terminal device can determine whether the corresponding time domain unit is used according to each occupation indication information. Transmitting the first downlink data channel.
  • the first pre-scheduling indication information is further used to indicate that the terminal device monitors an initial monitoring location of the first post-scheduling indication information.
  • the jth post scheduling indication information in the at least one post scheduling indication information The information is located at a preset position of the j+1th time domain scheduling unit occupied by the downlink signal received by the terminal device, where the jth post scheduling indication information is used by the terminal device to determine the jth The time domain resource occupied by the first downlink data channel in the downlink signal received in the time domain scheduling unit, where j ⁇ 1.
  • the post scheduling indication information in each time domain scheduling unit is used by the terminal device to determine a time domain occupied by the first downlink data channel in the last time domain scheduling unit of each time domain scheduling unit. unit.
  • the terminal device may obtain the corresponding post-scheduling indication information at the preset location of each time domain scheduling unit, which can improve the accuracy of the scheduling information after the terminal device acquires the post instruction information.
  • the jth post scheduling indication information is carried on the downlink control channel PDCCH in the j+1th time domain scheduling unit.
  • the PDCCH of the j+1th time domain scheduling unit carries the post scheduling indication information corresponding to the jth time domain scheduling unit, and the scheme has good operability.
  • the at least one post-scheduling indication information includes first post-scheduling indication information corresponding to the first pre-scheduling indication information, where the first post-scheduling indication information is used to indicate the The first downlink data channel is transmitted; the first post-scheduling indication information is the last post-scheduling indication information in the at least one post-scheduling indication information.
  • the first post-scheduling indication information is used to indicate the end position of the time domain resource of the first downlink data channel, which can improve the flexibility of the network device to allocate the time domain resource.
  • the jth post scheduling indication information is used to indicate that the first downlink data channel is occupied in a downlink signal received in the jth time domain scheduling unit. Time domain resources.
  • the jth post scheduling indication information directly indicates the time-frequency resource occupied by the first downlink data channel in the jth time domain scheduling unit, so that the terminal device can directly according to the jth post scheduling indication information.
  • the first pre-scheduling indication information is used to indicate a size of a time domain resource allocated by the network device to the first downlink data channel, for the terminal device to use, according to Determining the size of the time domain resource indicated by the first pre-scheduled indication information and the size of the time domain resource occupied by the first downlink data channel determined by the terminal device according to the at least one post-scheduling indication information Whether the first downlink data channel is transmitted.
  • the network device may notify the terminal device of the size of the time domain resource allocated by the terminal device by using the first pre-scheduling indication information, so that the terminal device may use the time domain resource indicated by the first pre-scheduling indication information.
  • the size and the size of the time domain resource indicated by the at least one post-scheduling indication information determine whether the first downlink data channel is transmitted.
  • the jth post scheduling indication information is used to indicate a time domain unit that is reallocated in the jth time domain scheduling unit, in other words, the first The j post scheduling indication information is used to indicate a time domain resource that is not occupied by the first downlink data channel in the downlink signal received in the jth time domain scheduling unit.
  • the jth post scheduling indication information indicates the time domain resources that are reallocated in the jth time domain scheduling unit, so that the terminal device can determine the jth time domain according to the jth post scheduling indication information.
  • the resource that is not reallocated in the scheduling unit is used to transmit the first downlink data channel, and the indication manner is simple and easy to implement.
  • the jth post scheduling indication information includes M occupation indication information
  • the M occupation indication information is in one-to-one correspondence with the M time domain units included in the jth time domain scheduling unit, and each occupation indication information is used by the terminal device to determine whether the corresponding time domain unit is used to transmit the A downlink data channel. .
  • the method of the embodiment of the invention can improve the efficiency of the terminal device acquiring the first downlink data channel.
  • the jth post scheduling indication information in the at least one post scheduling indication information is located in a preset of the jth time domain scheduling unit occupied by the downlink signal sent by the network device a location, where the jth post scheduling indication information is used by the terminal device to determine a time domain resource occupied by a downlink data channel in a downlink signal received in the jth time domain scheduling unit, where j ⁇ 1 .
  • the network device may use the post scheduling indication information transmitted by the jth time domain scheduling unit to determine, by the terminal device, the time domain occupied by the first downlink data channel in the jth time domain scheduling unit. And the resource, so that the terminal device efficiently determines the time domain resource occupied by the first downlink data channel in each time domain scheduling unit according to the post scheduling indication information in each time domain scheduling unit.
  • the downlink signal further includes second pre-scheduling indication information, where the second pre-scheduling indication information is used to indicate that the terminal device receives the second downlink data channel.
  • the at least one post-scheduling indication information is used by the terminal device to determine that the downlink data transmission complete post-scheduling indication information is used to instruct the terminal device to send the hybrid automatic retransmission request (HARQ) Time domain resources.
  • HARQ hybrid automatic retransmission request
  • the network device dynamically allocates the time domain resource to the first downlink data channel, and if the time domain resource that is fed back by the HARQ is indicated by the pre-scheduling, the terminal device may not receive the at least one post-scheduling.
  • the indication information needs to perform HARQ feedback. Therefore, the HARQ feedback accuracy can be improved by indicating the HARQ feedback by using the post scheduling indication information for the terminal device to determine that the downlink data transmission is completed.
  • the post scheduling indication information used by the terminal device to determine that the downlink data transmission is complete includes the first post scheduling indication information in the possible implementation manner of the second aspect.
  • a terminal device for performing the method of any of the above first aspect or any of the possible implementations of the first aspect.
  • the terminal device comprises means for performing the method of the first aspect or any of the possible implementations of the first aspect described above.
  • a network device for performing the method of any of the foregoing second aspect or any of the possible implementations of the second aspect.
  • the network device comprises means for performing the method of any of the above-described second or second aspects of the second aspect.
  • a terminal device comprising: a processor, a transceiver, and a memory.
  • the terminal device further includes a bus system, wherein the transceiver, the memory, and the processor are connected by a bus system, the memory is configured to store instructions, and the processor is configured to execute instructions stored in the memory to control the transceiver to receive or send signals, And when the processor executes the instructions stored in the memory, the method of causing the processor to perform the first aspect or any of the possible implementations of the first aspect is performed.
  • a network device comprising: a processor, a transceiver, and a memory.
  • the network device further includes a bus system, wherein the transceiver, the memory, and the processor are connected by a bus system, the memory is configured to store instructions, and the processor is configured to execute instructions stored in the memory to control the transceiver to receive or send signals, And when the processor executes the instructions stored in the memory, the method of causing the processor to perform the second aspect or any of the possible implementations of the second aspect is performed.
  • a computer storage medium where the program code is stored in the computer storage medium
  • the sequence code is used to indicate a method in performing any of the above first aspects or any of the possible implementations of the first aspect.
  • a computer storage medium having stored therein program code for indicating a method of performing any of the above-described second aspect or any of the possible implementations of the second aspect.
  • the jth post scheduling indication information in the at least one post scheduling indication information is located at a preset position of the jth time domain scheduling unit occupied by the downlink signal received by the terminal device.
  • the terminal device monitors the at least one post-scheduling indication information in the downlink signal sent by the network device, where the terminal device obtains a post-scheduling indication on the first time domain scheduling unit.
  • Information, where the post-scheduling indication information n is used to indicate resources for transmitting the first downlink data channel in the second time domain scheduling unit, the first time domain scheduling unit and the second time domain scheduling unit The same or the first time domain scheduling unit is after the second time domain scheduling unit;
  • the above first aspect may also include:
  • the terminal device monitors the at least one post-scheduling indication information in the downlink signal sent by the network device, where the terminal device obtains a post-scheduling indication on the first time domain scheduling unit.
  • Information, where the post-scheduling indication information n is used to indicate resources for transmitting the first downlink data channel in the second time domain scheduling unit, the first time domain scheduling unit and the second time domain scheduling unit The same or the first time domain scheduling unit is after the second time domain scheduling unit;
  • the above first aspect may also include:
  • the third time domain scheduling unit may be the same as the first scheduling time domain unit.
  • the terminal device receives the first downlink data channel that is not sent on the second time domain scheduling unit by monitoring the third time domain scheduling unit, including:
  • the terminal device monitors a first part of resources of the third time domain scheduling unit to receive a first downlink data channel that is not sent on the second time domain scheduling unit, where the third time domain scheduling unit includes a first part
  • the resource and the second part of the resource, the second part of the resource is a predefined resource that is not used to transmit data.
  • the resource allocated for the first downlink data channel indicated by the first pre-scheduled indication information includes a first frequency domain resource
  • the first partial resource includes a second frequency domain resource
  • the first partial resource includes The second frequency domain resource and the first frequency domain resource have the same location in the frequency domain.
  • the terminal device monitors the third time domain scheduling unit when monitoring the third time domain scheduling unit.
  • the intermediate frequency domain location is the same as the frequency domain location of the resource allocated for the first downlink data channel indicated by the first pre-scheduling indication information.
  • the first downlink data channel that is not sent on the second time domain scheduling unit may be carried on multiple time domain scheduling units, and the terminal device may pass the same
  • the manner is to receive, on other time domain scheduling units, other first downlink data channels that are not sent on the second time domain scheduling unit.
  • the terminal device compares the size of all resources used for the first downlink data channel transmission on all the second time domain scheduling units. The size of the resource allocated for the first downlink data channel indicated by the first pre-scheduling indication information.
  • an optional implementation manner corresponding to the network device is as follows:
  • the first pre-scheduling indication information is specifically used to indicate that the terminal device receives the first downlink data channel on the first time domain scheduling unit set, where the network device is The first downlink data channel included in the downlink signal sent by the terminal device is carried in the second time domain scheduling unit set, where the first time domain scheduling unit set and the second time domain scheduling unit set are completely different.
  • the second time domain scheduling unit set includes the first time domain scheduling unit set or the second time domain scheduling unit set partially overlapping the first time domain scheduling unit set.
  • first time domain scheduling unit set herein may include one or more time domain scheduling units
  • second time domain scheduling unit set may also include one or more time domain scheduling units.
  • the first pre-scheduling indication information includes first resource information, where the first resource information indicates resources of the first downlink data channel;
  • the part of the post-scheduling indication information in the at least one post-scheduling indication information further includes second resource information, where the second resource information indicates that the first transmission is performed on the resource indicated by the first resource information Resource information of the row data channel.
  • the terminal device of the first aspect receives the first pre-scheduling indication information sent by the network device
  • the terminal device further receives at least one physical layer control channel sent by the network device, where the at least one A physical layer control channel is used to indicate part or all of the resources occupied by the first downlink data channel.
  • the network device after the network device sends the first pre-scheduling indication information, the network device further sends the at least one physical layer control channel to the user equipment.
  • the terminal device further receives, by the network device, a first threshold, where the first threshold is used to determine whether to continue to receive the first downlink data channel.
  • the first threshold may be that the network device sends in a semi-static manner, for example, by radio resource control (RRC) signaling.
  • RRC radio resource control
  • the network device further sends the first threshold to the terminal device.
  • the terminal device may further determine, according to the size of the resource indicated by the first pre-scheduling indication information, the first threshold, and a resource size determined by the terminal device according to the at least one post-scheduling indication information. Determining whether to continue receiving the first downlink data channel.
  • the network device may further determine, according to the size of the resource indicated by the first pre-scheduling indication information, the first threshold and the resource size indicated by the at least one post-scheduling indication information, whether to continue to the terminal. The device transmits a portion of the first downlink data channel.
  • FIG. 1 is a schematic flowchart of an example of a method for downlink scheduling resources according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of an example of a resource map in accordance with an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of another example of a resource map in accordance with an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of still another example of a resource map in accordance with an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of another example of a method for downlink scheduling resources according to an embodiment of the present invention.
  • FIG. 6 is a schematic block diagram of an example of a terminal device according to an embodiment of the present invention.
  • FIG. 7 is a schematic block diagram of an example of a network device according to an embodiment of the present invention.
  • FIG. 8 is a schematic block diagram of another example of a terminal device according to an embodiment of the present invention.
  • FIG. 9 is a schematic block diagram of another example of a network device according to an embodiment of the present invention.
  • a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
  • an application running on a computing device and a computing device can be a component.
  • the F components may reside in a process and/or execution thread, and the components may be located on one computer and/or distributed between two or more computers. Moreover, these components can execute from various computer readable media having various data structures stored thereon.
  • the component may be localized, for example, according to signals having F data packets (eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems) And/or remote processes to communicate.
  • F data packets eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems
  • remote processes to communicate.
  • the present invention describes various embodiments in conjunction with a terminal device.
  • the terminal device may be referred to as a user equipment (User Equipment), a mobile station (Mobile Station, MS), a mobile terminal device, and the like.
  • the device can communicate with the F core networks via a Radio Access Network (RAN).
  • RAN Radio Access Network
  • the terminal device can be a mobile phone (or “cellular” phone), a computer with a mobile terminal device, etc.
  • the terminal device can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device and terminal devices in a future 5G network that exchange voice and/or data with the wireless access network.
  • a network device which may be a Long Term Evolution (LTE) system or an evolved system thereof or an evolved base station (Evolutional Node B in the future 5G network).
  • LTE Long Term Evolution
  • Evolutional Node B in the future 5G network e-NodeB
  • a macro base station e.g., a MCI
  • a micro base station also referred to as a "small base station”
  • a pico base station e.g., a pico base station
  • AP access point
  • TP transmission point
  • SC-FDMA Single Carrier-Frequency Division Multiple Access
  • OFDM orthogonal frequency division multiple access
  • the network device before transmitting the downlink data to the terminal device, the network device first sends scheduling indication information to the terminal device, where the scheduling indication information is used to instruct the network device to allocate time-frequency resources for the terminal device.
  • the start position and the end position after receiving the scheduling indication information, the terminal device receives the downlink signal on the time-frequency resource corresponding to the start location and the end location.
  • the location of the time-frequency resources allocated by the network device to the terminal device is fixed, which causes the network device to allocate resources with low flexibility, and in some cases cannot meet the requirements of the user.
  • the time-frequency resource needs to be allocated to the Ultra-Reliable and Low Latency Communications (URLLC) user.
  • the URLLC user and the eMBB user use the same frequency band.
  • the network device can only allocate the time domain resource behind the time domain resource occupied by the eMBB user service in the time domain for the URLLC user.
  • the smaller data of the URLLC service has higher requirements on delay, which makes it impossible to meet the requirements of the URLLC user. . Therefore, there is a need for a flexible scheduling resource to meet the needs of different services.
  • the method for downlink scheduling resources in the embodiment of the present invention is described in detail below with reference to FIG. 1 in order to facilitate flexible allocation of time domain resources by network devices.
  • FIG. 1 is a schematic flowchart of an example of a method for downlink scheduling resources according to an embodiment of the present invention.
  • Figure 1 shows the steps or operations of the method 100 for scheduling resources downstream, but these steps or operations are merely examples, and other embodiments of the present invention may also perform other operations or variations of the operations of Figure 1, in addition, each of the The steps may be performed in a different order than that presented in FIG. 1, and not all of the operations in FIG. 1 may be performed.
  • the method 100 for scheduling resources of the downlink may include:
  • the network device sends the first pre-scheduling indication information to the terminal device.
  • the terminal device receives the first pre-scheduling indication information sent by the network device, where the first pre-scheduling indication information is used to indicate that the terminal device receives First downlink data channel;
  • the network device sends a downlink signal to the terminal device.
  • the terminal device receives, according to the first pre-scheduling indication information, a downlink signal sent by the network device, where the downlink signal includes the a downlink data channel;
  • the terminal device monitors at least one post scheduling indication information in the downlink signal sent by the network device, where the at least one post scheduling indication information is used by the terminal device to determine the first downlink in the received downlink signal.
  • the resource may be a time domain resource, or the resource may be a frequency domain resource. Of course, the resource may also be a time domain resource and a frequency domain resource.
  • the network device may send the first pre-scheduling indication information to the terminal device, and after receiving the first pre-scheduling indication information, the terminal device may determine that the first downlink data channel needs to be received, and according to the first pre-scheduling indication information.
  • the indication starts to receive the downlink signal sent by the network device, and the terminal device monitors at least one post scheduling indication information in the downlink signal sent by the network device, and determines, according to the at least one post scheduling indication information, the time domain resource occupied by the received downlink signal. Which time domain resources are used to transmit the first downlink data channel and/or which frequency domain resources occupied by the received downlink signal are used to transmit the first downlink data according to the at least one post scheduling indication information channel.
  • the terminal device may acquire the first downlink data channel from the received downlink signal according to the at least one post scheduling indication information.
  • the monitoring the at least one post-scheduling indication information means that the terminal device detects (continuously) the at least one post-scheduling indication information in the received signal.
  • step S120 may be before step S130. It should be noted that, in the implementation process, step 120 may also be after step 130.
  • the network device may send the first pre-scheduling indication information to the terminal device, and after receiving the first pre-scheduling indication information, the terminal device may determine that the first downlink data channel needs to be received, and start receiving according to the indication of the first pre-scheduling indication information.
  • the downlink signal sent by the network device monitors at least one post scheduling indication information in the downlink signal sent by the network device, and determines, according to the at least one post scheduling indication information, which time domain resources in the time domain resource occupied by the received downlink signal And determining, by using the at least one post-scheduling indication information, which of the frequency domain resources occupied by the received downlink signal are used to transmit the first downlink data channel.
  • the terminal device may further determine, according to the at least one post scheduling indication information, whether to continue receiving the first downlink data channel.
  • the terminal device may continue to monitor another at least one post-scheduling indication information in the downlink signal sent by the network device, and determine, according to the another at least one post-scheduling indication information, the received Which time domain resources in the time domain resources occupied by the downlink signal are used to transmit the first downlink data channel and/or determine which frequency domain resources in the frequency domain resources occupied by the received downlink signal are used according to the at least one post scheduling indication information Transmitting the first downlink data channel.
  • the terminal device may acquire the first downlink data channel from the received downlink signal according to the at least one post scheduling indication information, and determine whether to continue receiving the first downlink data channel. If it is determined that the receiving of the first downlink data channel is continued, the terminal device may further acquire the first downlink data channel from the received downlink signal according to the another at least post scheduling indication information.
  • time domain starting position occupied by the downlink signal in the embodiment of the present invention is the same as the time domain location occupied by the first pre-scheduling indication information, or is located after the time domain location occupied by the first pre-scheduling indication information.
  • the pre-scheduling indication information and/or the post-scheduling indication information in the embodiment of the present invention may be carried by a physical control channel.
  • the first pre-scheduling indication information may include a physical downlink control channel (PDCCH).
  • PDCCH physical downlink control channel
  • the terminal device may determine the first according to the at least one post scheduling indication information and the first pre-scheduling indication information. A time domain resource and/or a frequency domain resource occupied by a downlink data channel, thereby acquiring the first downlink data channel.
  • the post scheduling indication information in the embodiment of the present invention may also be a PDCCH.
  • the post-scheduling indication information of the embodiment of the present invention is carried in the PDCCH, which will be described in detail later.
  • the network device allocates a fixed-size time domain resource and/or a frequency domain resource to the first downlink data channel of the terminal device (the time domain allocated to the first downlink data channel is indicated by one scheduling indication information).
  • the first downlink data channel can only be transmitted in the time domain resource between the start and stop positions, and correspondingly, in the case that the frequency domain is fixed, the time domain resource between the start and stop positions can only be used for the first Transmission of a downlink data channel; and/or indicating, by a scheduling indication information, a start and stop location of a frequency domain resource allocated for the first downlink data channel, the first downlink data channel being only capable of being between the start and stop locations
  • the domain resource is transmitted, and correspondingly, in the case that the time domain resource is determined, the frequency domain resource between the start and stop locations can only be used for the transmission of the first downlink data channel, and the method of the embodiment of the present invention can implement the method.
  • the time domain resource may include at least one time domain scheduling unit in the time domain, where the time domain scheduling unit may be a unit of time domain resources that can be scheduled.
  • the time domain scheduling unit according to the embodiment of the present invention may be specified by a standard, or the network device may be configured for the terminal device.
  • a standard specification or network configuration may be one time domain scheduling unit (eg, 14 OFDM symbols or duration 1 millisecond), or one time slot (eg, 7 OFDM symbols or 14 OFDM symbols), or a mini A time slot (eg, 7 OFDM symbols or less than 7 OFDM symbols or less than 14 OFDM symbols), or two mini-slots (each mini-slot includes 2 OFDM symbols), or 1 OFDM symbol.
  • the scheduling units of all terminal devices served by the network device may be the same or different.
  • each time domain scheduling unit includes at least one time domain unit, wherein the time domain unit may be a mini time slot or a symbol.
  • the standard may also specify that a time domain scheduling unit includes a plurality of mini-slots, each of which includes an OFDM symbol number corresponding to an index of the mini-slot.
  • the standard may specify that one time domain scheduling unit includes six mini slots, and the number of OFDM symbols corresponding to each mini slot in turn is 322322 or 223223, respectively.
  • the standard may specify that one time domain scheduling unit includes three mini slots, and the number of OFDM symbols corresponding to each mini slot in turn is 322 or 223, respectively.
  • the standard may specify that one time domain scheduling unit includes four mini slots, and the number of OFDM symbols corresponding to each mini slot in turn is 4343 or 3434, respectively.
  • the standard may specify that one time domain scheduling unit includes two mini-slots, and the number of OFDM symbols corresponding to each mini-slot in turn is 4343 or 34, respectively.
  • the time domain scheduling unit may include at least one mini slot and at least one OFDM symbol.
  • a time domain scheduling unit includes 7 OFDM symbols, and the time domain scheduling unit may include 2 mini slots and 3 OFDM symbols, and may also include 3 mini slots and 1 OFDM symbol, and may also include 1 Mini-slot and 5 OFDM symbols, one of which contains 2 OFDM symbols.
  • the frequency domain resource may be a resource block or a resource block group.
  • the frequency domain resources can also be other units.
  • the resource block group may be composed of one or more resource blocks.
  • the number of resource blocks included in a resource block group may be fixed, such as dictated by communication standards.
  • the number of resource blocks included in the resource block group may also be changed.
  • the network device and the terminal device may determine the number of resource blocks included in the resource block group according to the frequency domain bandwidth allocated to the terminal device for uplink or downlink data channel transmission.
  • the network device and the terminal device may determine the number of resource blocks included in the resource block group according to the carrier bandwidth configured to the terminal device.
  • the carrier may be configured by the network device for the terminal device.
  • different terminal devices can be configured with different carriers, that is, the frequency domain ranges of different terminal device carriers can overlap each other, and the frequency domain start and end positions of different carriers can be different, and/or different carriers.
  • the bandwidth can vary.
  • time domain scheduling unit may also be a network device that uses system information, broadcast information, Or a time domain scheduling unit configured by higher layer signaling.
  • the possible time domain scheduling unit may refer to the above description, and for brevity, no further details are provided herein.
  • time domain scheduling unit may be specified in an existing standard, or may be another newly introduced time domain resource unit that can be scheduled in a future 5G system or other communication system.
  • the at least one time domain unit included in the domain scheduling unit may be a minislot or symbol, and may be other time domain units introduced in future communication systems.
  • the first downlink data channel may include a part that completes the transmission and a part that completes the transmission.
  • the at least one post-scheduling indication information may be further used by the terminal device to determine whether the first downlink data channel is transmitted, and determining, by the terminal device, the first downlink data channel according to the at least one post-scheduling indication information.
  • the terminal device may continue to monitor the post-scheduling indication information, which will be described in detail later.
  • the terminal device may further confirm the time domain resource and/or the frequency domain resource location used to carry the first downlink data channel. .
  • the terminal device Before receiving the first pre-scheduled indication information, the terminal device may first monitor the first pre-scheduling indication information. Optionally, the terminal device may periodically monitor the first pre-scheduling indication information. The monitoring period of the terminal device monitoring the first pre-scheduling indication information may be the same as or different from the monitoring period for monitoring the at least one post-scheduling indication information. The monitoring period may be at least one OFDM symbol, or may be at least one mini slot, or one slot, or one or several other time domain units.
  • the receiving, by the terminal device, the first pre-scheduling indication information may be used to receive the downlink signal, and further, the first pre-scheduling indication information may further be used to indicate at least one of the following information:
  • the first pre-scheduling indication information may be used to indicate a frequency domain location allocated by the network device for the first downlink data channel. After receiving the first pre-scheduling indication information, the terminal device may detect the first downlink data channel in the frequency domain location.
  • the first pre-scheduling indication information indicates that the form of the frequency domain location may include at least one of the following two types:
  • the first pre-scheduling indication information may include a starting sequence number and an ending sequence number of the frequency domain resource block or the resource block group;
  • the first pre-scheduling indication information may include a starting sequence number of the frequency domain resource block or the resource block group and a total number of the frequency domain resource block or the resource block group.
  • the resource block group may be composed of at least one resource block, as described above.
  • the frequency domain location allocated by the network device to the terminal device may be different in different time domain units.
  • the frequency domain location of the first downlink data channel may remain unchanged, Can vary in different time domain units.
  • the frequency domain location of the downlink signal is greater than or equal to a frequency domain location of the first downlink data channel.
  • the frequency domain resources occupied by the downlink signal and the frequency domain resources allocated by the network device for the first downlink data channel may be the same. In other words, the network device can transmit a downlink signal on the frequency domain resources allocated for the first downlink data channel.
  • the first pre-scheduling indication information may be further used to indicate that the terminal device receives the time domain starting location of the downlink signal. Further, the first pre-scheduling indication information may be used to indicate a starting location of a time domain resource allocated by the network device for the first downlink data channel.
  • the indication manner may include at least the following two types:
  • the terminal device starts receiving the downlink signal after receiving the first pre-scheduling indication information
  • the first pre-scheduling indication information may carry time domain start information, where the time domain start information is used to indicate that the terminal device receives the time domain start position of the downlink signal. Further, the first pre-scheduling indication information may be used to indicate a time domain starting location allocated by the network device for the first downlink data channel.
  • S120 can include:
  • the terminal device receives the downlink signal sent by the network device from the start position of the time domain in the frequency domain location according to the first pre-scheduling indication information.
  • the network device may notify the terminal device of the size of the time domain resource allocated for the first downlink data channel by using the first pre-scheduling indication information, and the terminal device may be known as the first The size of the time domain resource allocated by the row data channel.
  • the first pre-scheduling indication information may further include receiving a time domain termination location of the downlink signal.
  • the time domain termination location herein may specifically be the time domain termination location of the first downlink data channel.
  • the first pre-scheduling indication information may be further used to indicate that the terminal device receives the time domain termination location of the downlink signal. Further, the first pre-scheduling indication information may be used to indicate a termination location of a time domain resource allocated by the network device for the first downlink data channel.
  • the time domain termination position of the received downlink signal is that, if the time domain and/or the frequency domain resource allocated by the network device to the terminal device by using the first pre-scheduling indication information is not reallocated during the downlink signal transmission, the The time domain termination location may be an actual termination location; if the time domain and/or frequency domain resources allocated by the network device to the terminal device by the first pre-scheduling indication information are re-allocated during the downlink signal transmission, the time domain termination The location may be the actual termination location of the first downlink data channel scheduled by the first pre-scheduling indication information, or may not be the actual termination location of the first downlink data channel scheduled by the first pre-scheduling indication information. description.
  • the indication manner may include at least the following two types:
  • an implicit indication for example, the time domain termination location may be the end position of the time domain scheduling unit where the first pre-scheduling information is located, that is, the terminal device receives the downlink signal from the start of the time domain indicated by the first pre-scheduling information, to The end position of the time domain scheduling unit where the first pre-scheduling information is located, and the time domain termination position may be the time domain start, for example, if the first pre-scheduling information is used to indicate that the terminal device receives the time domain start position of the downlink signal.
  • the end position of the time domain scheduling unit where the location is located that is, the terminal device receives the downlink signal from the time domain start position indicated by the first pre-scheduling indication information, to the end position of the time domain scheduling unit where the time domain start location is located.
  • the indication that the first pre-scheduling indication information may carry time domain termination information, where the time domain termination information is used to indicate that the terminal device receives the time domain termination location of the downlink signal. Further, the first pre-scheduling indication information may be used to indicate a time domain termination location allocated by the network device for the first downlink data channel.
  • the time domain starting position of the downlink signal in the embodiment of the present invention the size of the time domain resource allocated by the first downlink data channel, and the time domain termination position of the downlink signal are used to determine the location of the time domain resource. Two of these three kinds of information can determine the location of the time domain resource. Therefore, the first pre-scheduling indication information may include the three types of information. Any two or three of them are included.
  • the first pre-scheduling indication information may also be used to indicate the initial monitoring location of the post-monitoring indication information, so that the terminal device can directly monitor at the initial monitoring location, thereby improving the post-monitoring scheduling indication information of the terminal device. s efficiency.
  • monitoring positions in the embodiments of the present invention include time domain positions.
  • the indication manner of the first pre-scheduling indication information may include at least the following:
  • the first pre-scheduling indication information is used to indicate the first time domain unit offset, where the first time domain unit offset is the first time domain unit where the first pre-scheduling indication information is located and the initial monitoring location a time domain unit offset between the second time domain units, the terminal device may determine the location of the second time domain unit according to the first time domain unit offset and the first time domain unit, thereby determining the Start monitoring position.
  • the first pre-scheduling indication information is used to indicate a second time domain unit offset, where the second time domain unit offset is a third time domain unit in which the terminal device starts to receive the downlink signal in the time domain starting position.
  • the time domain unit offset between the second time domain unit in which the initial monitoring location is located.
  • the terminal device may determine the location of the second time domain unit according to the second time domain unit offset and the second time domain unit, thereby determining the initial monitoring location.
  • the terminal device may determine the initial monitoring according to the time domain resource size indicated by the first pre-scheduling indication information. position. For example, the network device allocates N time domain units for the first downlink data channel, and the terminal device may determine that the time domain unit occupied by the post scheduling indication information is not in the first N-1 time domain units occupied by the downlink signal. The terminal device determines to monitor the first post scheduling indication information on the Nth time domain unit occupied by the downlink signal, or monitor the first post scheduling indication information on the N+1th time domain unit.
  • the terminal device may terminate the time domain of the first downlink data channel indicated by the first pre-scheduling indication information.
  • the position determines the starting monitoring position. For example, the terminal device determines to monitor the first post-scheduling indication information on the last time domain unit s occupied by the first downlink data channel, or after the last time domain unit time domain unit occupied by the first downlink data channel The first post scheduling indication information is monitored on a time domain unit s+1.
  • the first pre-scheduling indication information may be further used to indicate a monitoring period of the scheduling indication information after the terminal device monitors, and the terminal device may monitor the at least one post-scheduling indication information according to the monitoring period.
  • the first pre-scheduling indication information may be further used to indicate the termination monitoring location of the post-monitoring indication information, and after the terminal device starts monitoring the at least one post-scheduling indication information, if the termination monitoring position is reached, the at least A post-schedule indication information (or the monitored at least one post-scheduling indication information does not meet the standard, and the detailed description is subsequently performed), and the terminal device may stop monitoring the post-scheduling indication information corresponding to the first pre-scheduling indication information.
  • the terminal device sends related information of the Hybrid Automatic Repeat reQuest (HARQ) feedback information.
  • the feedback information is used to indicate whether the terminal device correctly receives the first downlink data channel.
  • the feedback information includes an ACK or a NACK. If the terminal device correctly receives the first downlink data channel, the terminal device may send an ACK to the network device, and if the terminal device does not correctly receive the first downlink data channel, the terminal device may send the feedback information NACK to the network device.
  • HARQ Hybrid Automatic Repeat reQuest
  • the related information of the feedback information may include at least one of the following information:
  • the first pre-scheduling indication information may indicate a frequency domain location of the feedback information.
  • the first pre-scheduling indication information may indicate a resource sequence number of the feedback information (numbering the frequency domain resources in the time domain resource that can be used to send the feedback information). For example, an OFDM symbol may have 16 frequency domain resources for transmitting feedback information, and the 16 frequency domain resources may be numbered, so that the terminal device may use the resource sequence number of the feedback information indicated by the first pre-scheduling indication information. Sending feedback information on the frequency domain resource corresponding to the resource sequence number.
  • the first pre-scheduling indication information may indicate a time domain location of the feedback information.
  • the indication manner that the first pre-scheduling indication information indicates the location of the time domain may include at least one of the following two types:
  • the first pre-scheduling indication information is used to indicate a third time domain unit offset, where the third time domain unit offset is the first time domain unit where the first pre-scheduling indication information is located and where the feedback information is located.
  • the offset of the time domain unit between the fourth time domain units expressed as the number of time domain units.
  • the network device ensures that “at least one post-scheduling indication information” is sent to the terminal device before the transmission time of the feedback information arrives, and the terminal device receives “ The terminal device has sufficient time to demodulate and decode the received downlink signal and generate feedback information after the at least one post-scheduling indication information" to the time before the feedback information is transmitted.
  • the first pre-scheduling indication information is used to indicate a fourth time domain unit offset, where the fourth time domain unit offset is used in the at least one post-scheduling indication information, and the post-scheduling indication information is determined by the terminal device for determining that the transmission is completed.
  • the offset of the time domain unit between the time domain unit in which the indication information is subsequently described and the time domain unit in which the feedback information is located is expressed in terms of the number of time domain units.
  • the location of the time domain unit for HARQ feedback ie, symbol location, or slot location or minislot location) or number.
  • the modulation method may include BPSK, 8BPSK, QPSK, One or more of 16QAM, 64QAM, and 256QAM
  • Data indication information used to indicate initial transmission or retransmission when the downlink data transmission is performed.
  • the number of information bits of the transport block included in the first downlink data channel and the code rate of the transport block may be a transport block size (TBS) sequence number
  • g redundant version. Specifically, if a hybrid automatic repeat request (HARQ) is mixed In the redundant incremental method, the redundancy version number needs to be sent, so that the user can know where to place the received signal in the soft buffer when decoding.
  • HARQ hybrid automatic repeat request
  • Modulation and coded scheme index (MCS index)
  • the terminal device can demodulate and equalize the received data before monitoring the “at least one post-scheduling indication information”, and then The data to be decoded is stored in the buffer buffer. After the "at least one post-scheduling indication information" is monitored and the specific indication information content is obtained, the data to be decoded in the buffer is determined, and the soft buffer is directly constructed. Buffer) and perform decoding operations. This has the advantage that the data receiving process of the terminal device can be accelerated, and the delay from the completion of the data transmission to the transmission of the feedback information by the terminal device device can be reduced.
  • the behavior and manner of the scheduling indication information after the terminal device monitors may be pre-agreed or may be indicated by the first pre-scheduling indication information, and the first pre-scheduling indication information may further include other scheduling indication information used for monitoring by the terminal device. Additional information.
  • the terminal device may determine, among the resources occupied by the downlink signal received by the terminal device, which time domain resources are used to transmit the first downlink data channel and/or which frequency domain resources are used to transmit the first downlink. Data channel.
  • the at least one post-scheduling indication information may include at least the following three modes:
  • the terminal device After receiving the first pre-scheduling indication information, the terminal device monitors the first post-scheduling indication information corresponding to the first pre-scheduling indication information (at least one post-scheduling indication information includes the first post-scheduling indication information).
  • the first pre-scheduling indication information and the first post-scheduling indication information may include the same or corresponding identifiers.
  • the terminal device may monitor the first post scheduling indication information including the same or corresponding identifier according to the identifier included in the first pre-scheduling indication information.
  • the first pre-scheduling indication information and the first post-scheduling indication information may include the same transmission process ID (Identity).
  • the transmission process ID may be a HARQ process sequence number or a transmission process sequence number.
  • the first pre-scheduling indication information and the first post-scheduling indication information may be scrambled using the same scrambling code.
  • the time domain resource location where the first post-scheduling indication information is located is not fixed.
  • the first post-scheduling indication information is used to indicate a time domain resource occupied by the first downlink data channel in the downlink signal received by the terminal device in the first time period, where the first time period is self-sufficient
  • the terminal device receives the downlink signal sent by the network device to a time period in which the terminal device monitors the first post-scheduling indication information.
  • the first post-scheduling indication information is used to indicate that the downlink signal sent by the network device is received from the terminal device until the terminal device monitors the first post-scheduling indication information, and the terminal device receives the downlink.
  • the time domain resource occupied by the first downlink data channel in the signal is not fixed.
  • the first post-scheduling indication information is used to indicate that the terminal device takes up the time domain start position of the downlink signal and monitors the time domain location of the first post-scheduling indication information, and the first downlink data channel is occupied. resource of.
  • the first post scheduling indication information is used to indicate the resources occupied by the first downlink data channel in the time domain resources occupied by the downlink signals received by the terminal device.
  • the first post-scheduling indication information is further used to indicate that the first downlink data channel scheduled by the first pre-scheduling indication information is transmitted.
  • the first post-scheduling indication information may indicate that the first downlink data channel scheduled by the first pre-scheduling indication information is transmitted by using at least one of the following two manners:
  • the first post-scheduling indication information itself can be used to indicate that the first downlink data channel is transmitted. Specifically, the terminal device detects that the first post scheduling indication information corresponding to the first pre-scheduling indication information can determine the first downlink The data channel is transmitted.
  • the first post-scheduling indication information may also include an end identifier for identifying that the first downlink data channel is transmitted.
  • the first post-scheduling indication information includes an end identifier, which may be that the first post-scheduling indication information is scrambled by a special scrambling code, or the first post-scheduling indication information includes an end bit.
  • FIG. 2 is a schematic diagram of an example of a resource map in accordance with an embodiment of the present invention. For ease of understanding, some of the time domain units in Figure 2 are numbered. After the terminal device receives the first pre-scheduling indication information, the next time domain unit of the time domain unit where the first pre-scheduling indication information is located starts to receive the downlink signal, and the time domain unit number hypothesis of the initial downlink signal can be assumed. It is 1, and the subsequent time domain units are numbered in turn.
  • the time domain resources of the first downlink data channel, such as the eMBB service, allocated by the network device to the terminal device may be continuous or discontinuous, that is, dynamic.
  • the network device may allocate a time domain start position for the first downlink data channel of the eMBB service, and the terminal device may start receiving the downlink signal from the start position of the time domain (that is, the transmission unit numbered 1), when the network device encounters a burst.
  • the transmission requirement for example, when the URLLC service needs to be processed, the network device can delay or postpone or suspend the transmission of the downlink data of the eMBB service (compared to the URLLC service, the eMBB service has a longer delay requirement than the service.
  • the time domain unit numbered 2 is used to send the service of the URLLC user, so that the short-latency requirement of the URLLC service can be satisfied.
  • the network device can delay or delay or suspend the eMBB user service when encountering an emergency situation (such as an emergency service), first processing the emergency service, and then processing the eMBB service until the eMBB service is processed and the network device passes the first post-scheduling indication.
  • the information indicates which time domain resources and frequency domain resources allocated by the first pre-scheduling indication information, which are received by the downlink signal received by the terminal device, are used to transmit the eMBB service.
  • time network resources allocated by the network devices listed above for the eMBB service and the URLLC service are only exemplary descriptions, and the present invention should not be limited. Any solution that can flexibly allocate time domain resources to meet different user delay requirements is All fall within the scope of protection of the present invention.
  • the mode 1 enables the network device to dynamically allocate time domain resources, which can improve the flexibility of allocating resources and meet the needs of different users.
  • the time domain location of the first post-scheduling indication information is not fixed (for example, the location of the first post-scheduling indication information is related to the resource size allocated by the network device for the first downlink data channel and the resource size occupied by the emergency service),
  • the terminal device needs to monitor the first post-scheduling indication information, where the manner in which the terminal device monitors the first post-scheduling indication information may include at least the following two types:
  • Continuous monitoring means that the terminal equipment starts monitoring each of the time domain units from the beginning of monitoring the first post-scheduling indication information. Still taking FIG. 2 as an example, the terminal device receives the downlink signal from the time domain unit numbered 1, and sequentially monitors the time domain units 2-9 until the first post-scheduling indication information is monitored in the time domain unit 10.
  • Periodic monitoring means that the terminal equipment starts monitoring the first post-scheduling indication information, and monitors according to the period.
  • the terminal device may start from the initial monitoring location and perform monitoring according to the monitoring period. Still taking FIG. 2 as an example, the first pre-scheduling indication information indicates that the time domain resource size allocated for the first downlink data channel is six time domain units, and the terminal device may determine that the first post-scheduling indication information needs to be at least No. 6 starts monitoring, and the terminal device can indicate according to the first pre-scheduling indication information.
  • the terminal device may monitor the first post-scheduling indication information according to the monitoring period in the time domain starting position of receiving the downlink signal.
  • the scheduling information is dispatched afterwards. Specifically, the terminal device sequentially monitors the time domain units 2, 4, 6, 8, and 10 until the first post-scheduling indication information is monitored in the time domain unit 10.
  • the terminal device may monitor the first post-scheduling indication information (for example, from the number) from the start of the time domain starting to receive the downlink signal.
  • the first post-scheduling indication information is started to be monitored by the time domain unit of 1; the terminal device may also start monitoring the first post-scheduling indication information from the next time domain unit of the time domain unit where the first pre-scheduling indication information is located;
  • the next time domain unit of the time domain unit that starts receiving the downlink signal starts monitoring the first post scheduling indication information (for example, monitoring the first post scheduling indication information from the time domain unit numbered 2).
  • the terminal device may determine, according to the first pre-scheduling indication information and the first post-scheduling indication information, which resources in the resources occupied by the received downlink signal are used to transmit the first downlink data channel.
  • the first downlink data channel can be determined from the received downlink signals.
  • the N timestime domain units occupied by the downlink signal may be determined according to the N occupation indication information included in the first post-scheduling indication information.
  • the unit is used for transmission of the first downlink data channel.
  • the first post-scheduling indication information may include a bitmap, and the bitmap includes bits that may correspond to the occupation indication information mentioned above.
  • the number of bits included in the bitmap may be dynamic or fixed. It is assumed that "1" indicates that the first downlink data channel is transmitted, and "0" indicates that the first downlink data channel is not used for transmission.
  • the number of bits included in the bitmap may be dynamic.
  • the terminal device receives the first post scheduling indication information carrying the bitmap, and the terminal device can determine the time domain occupied by the received downlink signal.
  • the transmission units numbered 1, 3, 5, 6, 9, and 10 are used to transmit the first downlink data channel.
  • the terminal device may determine, according to the location of the first pre-scheduling indication information and the location of the post-scheduling indication information, the valid bit in the bitmap.
  • the terminal device receives the first post-scheduling indication information that carries the bitmap. Wherein, the last four bits in the bitmap are reserved bits.
  • the terminal device may determine, according to the number of bits reserved in the bitmap, whether the received first post scheduling indication information is in error. As shown in FIG. 2, it is assumed that the bitmap of the first post-scheduling indication information monitored by the terminal device is “10101100110110”. The terminal device may determine that the indication of the first post-scheduling indication information is incorrect.
  • the first post scheduling indication information may be further used to indicate a time domain occupied by the first downlink data channel.
  • a resource and/or a frequency domain resource wherein the time domain resource and/or the frequency domain resource are resources within a first time period.
  • the first time period is a time period from the terminal device receiving the downlink signal sent by the network device to the terminal device monitoring the first post scheduling indication information.
  • the first post-scheduling indication information is used to indicate that the downlink signal sent by the network device is received from the terminal device until the terminal device monitors the first post-scheduling indication information, and the terminal device receives the downlink. a time domain resource and/or a frequency domain resource occupied by the first downlink data channel in the signal.
  • the first post-scheduling indication information is used to indicate that the terminal device takes up the time domain start position of the downlink signal and monitors the time domain location of the first post-scheduling indication information, and the first downlink data channel is occupied. resource of.
  • the first post scheduling indication information is used to indicate the time domain resource occupied by the downlink signal received by the terminal device and/or the resource occupied by the first downlink data channel in the frequency domain resource.
  • the specific description of the first post-scheduling indication information can be referred to the above description, and for brevity, it will not be described here.
  • the terminal device may determine the downlink signal occupation according to the N*q occupation indication information included in the first post scheduling indication information.
  • Which of the N*q time-frequency resource units consisting of N time domain units and q frequency domain units is used for transmission of the first downlink data channel.
  • one frequency domain unit may be one resource block or one resource block group.
  • the first post-scheduling indication information may include a bitmap, and the bits included in the bitmap may correspond to the occupation indication information mentioned above. It is assumed that "1" indicates that the first downlink data channel is transmitted, and "0" indicates that the first downlink data channel is not used for transmission.
  • the first post-scheduling indication information indicates that the resources occupied by the first downlink data channel in the first time period are all time domain resources in the downlink signal received by the terminal device. / or frequency domain resources. If all the bits in the bitmap are "0”, the first post-schedule indication information indicates that the downlink signal received by the terminal device does not include the resource occupied by the first downlink data channel in the first time period.
  • the terminal device After receiving the first pre-scheduled indication information, the terminal device acquires the post-scheduling indication information at the preset position of each time domain scheduling unit, and obtains the first pre-scheduled indication at the preset position of the certain time domain scheduling unit.
  • the first post-scheduling indication information corresponding to the information the terminal device may determine, according to the first post-scheduling indication information, that the first downlink data channel is transmitted.
  • Each post-scheduling indication information is used to indicate a time domain resource used for transmitting the first downlink data channel in the last time domain scheduling unit, and the terminal device may obtain at least one post-scheduling indication information until the first pre-scheduling indication information is acquired.
  • Corresponding first post-scheduling indication information For a detailed description of the first post-scheduling indication information, refer to the related description of the foregoing mode 1. For brevity, it is not described herein.
  • the post scheduling indication information between the first pre-scheduling indication information and the first post-scheduling indication information in the mode 2 may correspond to the first pre-scheduling indication information, that is, the first pre-scheduling indication information and at least one The post-scheduling indication information includes the same or corresponding identifier.
  • the first post-scheduling indication information may indicate that the first downlink data channel is transmitted by using the end identifier.
  • the post scheduling indication information between the first pre-scheduling indication information and the first post-scheduling indication information may also not correspond to the first pre-scheduling indication information, that is, only the first pre-scheduling indication information and the first post-scheduling indication information correspond to each other.
  • the terminal device detects the first post scheduling indication information corresponding to the first pre-scheduling indication information, the terminal device determines that the first downlink data channel transmission is completed.
  • the terminal device may be detected at a preset position of each time domain scheduling unit of the subsequent time domain scheduling unit of the time domain scheduling unit where the first pre-scheduling indication information is located.
  • the post scheduling indication information at the preset position of the j+1th time domain scheduling unit is used to indicate the resource occupied by the first downlink data channel in the downlink signal received by the terminal device in the jth time domain scheduling unit.
  • the post scheduling indication information at the preset position of the j+1th time domain scheduling unit is used to indicate the time domain resource used for transmitting the first downlink data channel in the jth time domain scheduling unit, where j ⁇ 1. That is, the post scheduling indication information of the next time domain scheduling unit is used to indicate the time domain resource occupancy situation in the last time domain scheduling unit.
  • the post scheduling indication information of the jth time domain scheduling unit may also be located at a preset location of the jth time domain scheduling unit. That is, the post scheduling indication information of the current time domain scheduling unit is used to indicate the time domain resource occupation in the current time domain scheduling unit.
  • the terminal device determines, according to the end identifier in the first post-scheduling indication information, that the first downlink data channel is transmitted as an example.
  • the time domain scheduling unit is a 1 ms subframe, and the terminal device is numbered j.
  • the first post-scheduling indication information may be obtained on the subframe numbered j+1, where the first post-scheduling indication information is used to indicate the subframe numbered j Which time domain resources are used for the transmission of the first downlink data channel.
  • the terminal device determines that the first downlink data channel is not transmitted, and the terminal device continues to receive and monitor the subframe numbered j+1, and is numbered j+
  • the first post-scheduled indication information corresponding to the first pre-scheduling indication information and having the end identifier is obtained, and the terminal device may determine the first downlink after monitoring the first post-scheduling indication information.
  • the data channel is transmitted.
  • the terminal device may determine, according to the first pre-scheduling indication information and the monitored at least one post-scheduling indication information, which time-domain resources in the time-domain resources occupied by the received downlink signal are used to transmit the first downlink data channel, in other words, A first downlink data channel can be determined from the received downlink signals.
  • the terminal device determines, according to the time domain resource size for the first downlink data channel transmission indicated in the first post-scheduling indication information, that the transmission of the first downlink data channel is completed, as shown in FIG.
  • the time domain scheduling unit is a 1 ms subframe, and the terminal device acquires a first post scheduling indication information at a preset position of the subframe numbered j+1, where the first post scheduling indication information is used to indicate that the number is j. Which time domain resources on the subframe are used for transmission of the first downlink data channel.
  • the terminal device determines that the time domain resource size for the first downlink data channel transmission on the subframe numbered j is smaller than the size of the time domain resource allocated for the first downlink data channel indicated by the first pre-scheduling indication information, the terminal The device determines that the first downlink data channel has not been transmitted.
  • the terminal device continues to receive and monitor the subframe numbered j+1, and acquires the first post scheduling indication information corresponding to the first pre-scheduling indication information at the preset position of the subframe numbered j+2.
  • the first post scheduling indication information is used to indicate which time domain resources on the subframe numbered j+1 are used for transmission of the first downlink data channel.
  • the terminal device determines the sum of the time domain resource size for the first downlink data channel transmission and the time domain resource size for the first downlink data channel transmission on the subframe numbered j+1 in the subframe numbered j. And equal to the size of the time domain resource allocated for the first downlink data channel indicated by the first pre-scheduling indication information, and the terminal device determines that the first downlink data channel is transmitted.
  • the terminal device may use the predefined non-transmission data channel when the terminal device uses the time domain resource size occupied by the first downlink data channel determined according to all the post scheduling indication information.
  • Time domain and frequency domain resources are excluded. That is, the time domain resource size occupied by the first downlink data channel determined by all the post scheduling indication information does not include the predefined time domain and frequency domain resources that are not used for transmitting the data channel.
  • the pre-defined may be pre-configured in the device, or the network device is configured in advance to the terminal device. For example, if the communication system is LTE The terminal device first determines the number of OFDM symbols occupied by the PDCCH region in the subframe by using a Physical Control Format Indicator Channel (PCFICH), and excludes the PDCCH region from being available for transmitting the data channel. Beyond frequency resources. For example, in a 5G system, a terminal device can avoid time-frequency resources dedicated to carrying a PDCCH and a reference signal (RS).
  • PCFICH Physical Control Format Indicator Channel
  • the frequency hopping position of the first downlink data channel transmitted in the time domain scheduling unit may be a continuation of the frequency hopping position of the jth time domain scheduling unit, or may be restarted in the j+1th time domain scheduling unit.
  • the terminal device can use the first downlink data channel determined according to the time domain resource size indicated by the first pre-scheduling indication information and all the monitored post-scheduling indication information.
  • the size of the time domain resource determines whether the first downlink data channel is transmitted, and the network device allocates the first pre-scheduling in addition to the predefined time domain and frequency domain resources not used for transmitting the data channel in the first available time domain unit. Indicates a first downlink data channel transmitted on a frequency domain resource indicated by the information.
  • the terminal device determines, in the jth time domain scheduling unit, that the first downlink data channel is transmitted, and then in the j+1th time domain scheduling unit, except for the predefined non-transmission data channel.
  • the first downlink data channel is received on the frequency domain resource indicated by the first pre-scheduling indication information on the first available time domain unit other than the time domain and the frequency domain resource.
  • the resources other than the predefined time domain and frequency domain resources that are not used for transmitting the data channel are as described above, and are not described herein again.
  • the terminal device takes the first downlink data channel according to the first pre-scheduling indication information and the at least one post-scheduling indication information as an example, and further, as shown in FIG. 3, the time domain scheduling unit is a 1 ms subframe, for example.
  • the terminal device After acquiring the first pre-scheduling indication information on the subframe numbered j, the terminal device receives the signal in the frequency domain position of the first downlink data channel indicated by the first pre-scheduling indication information on at least the subframe numbered j.
  • the terminal device may obtain the first post scheduling indication information at a preset position of the subframe numbered j+1, where the first post scheduling indication information is used to indicate which time domain resources are used in the subframe numbered j.
  • the terminal device determines that the first downlink data channel is not transmitted. In other words, the terminal device determines that the signal received at the frequency domain position of the first downlink data channel indicated by the first pre-scheduling indication information on the subframe numbered j is a partial signal of the first downlink data channel. The terminal device continues to receive and monitor the subframe numbered j+1, and receives the signal in the frequency domain position of the first downlink data channel indicated by the first pre-scheduling indication information on at least the subframe numbered j+1.
  • the terminal device may acquire first post scheduling indication information corresponding to the first pre-scheduling indication information and having an end identifier at a preset position of the subframe numbered j+2.
  • the first post scheduling indication information is used to indicate which time domain resources on the subframe numbered j+1 are used for transmission of the first downlink data channel.
  • the terminal device monitors the first post scheduling indication information, it may be determined that the first downlink data channel is transmitted. In other words, the terminal device determines that the signal received in the frequency domain position of the first downlink data channel indicated by the first pre-scheduled indication information on the subframe numbered j and the subframe numbered j+1 is the first All signals of the data channel.
  • the terminal device receives the first downlink data channel according to the first pre-scheduling indication information and the at least one post-scheduling indication information, as shown in FIG. 3, the time domain scheduling unit is a 1 ms subframe, and the terminal device is used as an example.
  • the frequency domain position receiving signal of the first downlink data channel indicated by the first pre-scheduling indication information is at least in the subframe numbered j.
  • the terminal device may obtain the first post scheduling indication information at a preset position of the subframe numbered j+1, where the first post scheduling indication information is used to indicate which time domain resources are used in the subframe numbered j.
  • the terminal device determines the subframe numbered j for the first The time domain resource size of the row data channel transmission is smaller than the size of the time domain resource allocated for the first downlink data channel indicated by the first pre-scheduling indication information, and the terminal device determines that the first downlink data channel is not transmitted. In other words, the terminal device determines that the signal received at the frequency domain position of the first downlink data channel indicated by the first pre-scheduling indication information on the subframe numbered j is a partial signal of the first downlink data channel.
  • the terminal device continues to receive and monitor the subframe numbered j+1, and receives the signal in the frequency domain position of the first downlink data channel indicated by the first pre-scheduling indication information on at least the subframe numbered j+1.
  • the terminal device may acquire first post scheduling indication information corresponding to the first pre-scheduling indication information at a preset position of the subframe numbered j+2.
  • the first post scheduling indication information is used to indicate which time domain resources on the subframe numbered j+1 are used for transmission of the first downlink data channel.
  • the terminal device determines the sum of the time domain resource size for the first downlink data channel transmission and the time domain resource size for the first downlink data channel transmission on the subframe numbered j+1 in the subframe numbered j.
  • the terminal device determines that the first downlink data channel is transmitted. In other words, the terminal device determines that the signal received in the frequency domain position of the first downlink data channel indicated by the first pre-scheduled indication information on the subframe numbered j and the subframe numbered j+1 is the first All signals of the data channel.
  • the subframe is only an exemplary description, and in a specific implementation, the subframe may be replaced by any time domain scheduling unit or time domain unit described above.
  • the size of the time domain resource in the embodiment of the present invention may be expressed as the number of time domain units.
  • the size of the time domain resource in the embodiment of the present invention may be expressed as a time-frequency resource unit (for example, resource particle, RE). , the number of Resource elements).
  • each post-scheduling indication information may include a bitmap in which the number of bits included in the bitmap is the same as the time-domain unit in the time domain scheduling unit. Still taking FIG. 3 as an example, assume that "1" indicates that the first downlink data channel is transmitted, and "0" indicates that the first downlink data channel is not used for transmission.
  • a time domain scheduling unit is one subframe, one subframe includes seven time domain units, and the post scheduling indication information at the preset position of the subframe numbered j+1 may include “0110101”, the number is j.
  • the post scheduling indication information (first post-scheduling indication information) at which the subframe of +2 is preset may include "0011000".
  • the terminal device may determine, according to the pre-scheduling indication information and the at least one post-scheduling indication information, a time domain resource occupied by the first downlink data channel in the time domain resource occupied by the received downlink signal.
  • the terminal device may determine, according to the M*q occupation indication information included in the first post-scheduling indication information, M time-domain units and q occupied by the downlink signal. Which time-frequency units of M*q time-frequency resource units composed of frequency domain units are used for transmission of the first downlink data channel.
  • one frequency domain unit may be one resource block or one resource block group.
  • the first post-scheduling indication information may include a bitmap, and the bits included in the bitmap may correspond to the occupation indication information mentioned above. It is assumed that "1" indicates that the first downlink data channel is transmitted, and "0" indicates that the first downlink data channel is not used for transmission.
  • the first post-scheduling indication information indicates that the resources occupied by the first downlink data channel in the first time period are all time domain resources in the downlink signal received by the terminal device. / or frequency domain resources. If all the bits in the bitmap are "0”, the first post-schedule indication information indicates that the downlink signal received by the terminal device does not include the resource occupied by the first downlink data channel in the first time period.
  • the jth post scheduling indication information in the jth time domain scheduling unit may also be used to refer to The number of time domain units for transmitting the first downlink data channel after the jth time domain scheduling unit is shown.
  • the jth post scheduling indication information in the jth time domain scheduling unit may further include, after indicating the jth time domain scheduling unit, used to transmit the first downlink data channel. At least one of the following information for the time domain and frequency domain resource locations:
  • time domain and frequency domain resource location of the first downlink data channel after the jth time domain scheduling unit is indicated may be the first to complete the transmission.
  • the time domain and frequency domain resources of the downlink data channel may also be the time domain and frequency domain resources of the first downlink data channel that completes the transmission and the uncompleted transmission, or may be the first downlink data channel of the uncompleted transmission. Time domain and frequency domain resources.
  • the post scheduling indication information may be further used to indicate at least one of the following information of the first downlink data channel carried by the time domain and the frequency domain resource:
  • the jth post scheduling indication information of the jth time domain scheduling unit is further used to indicate the transmission information of the first downlink data channel after the jth time domain scheduling unit
  • the end identifier indicating whether the first downlink data channel scheduled by the terminal device is configured by the first pre-scheduling indication information is used to indicate whether the j-th post-scheduling indication information includes the untransmitted first downlink data channel. transmit information.
  • the terminal The device may determine whether the first downlink data channel is transmitted according to whether the jth time domain scheduling unit includes the transmission information of the first downlink data channel.
  • the terminal device obtains the first pre-scheduling indication information after the time domain scheduling unit numbered j And at least the frequency domain position receiving signal of the first downlink data channel indicated by the first pre-scheduling indication information on the time domain scheduling unit numbered j.
  • the terminal device may obtain the first post-scheduling indication information at a preset location of the time domain scheduling unit numbered j or the time domain scheduling unit numbered j+1, where the first post-scheduling indication information is used to indicate that the number is j.
  • the first post-scheduling indication information further includes a time domain scheduling unit numbered j and a time domain and/or a frequency domain for transmitting the first downlink data channel in the time domain scheduling unit numbered j+1.
  • the resource information the terminal device determines that the first downlink data channel is not transmitted. In other words, the terminal device can determine the first pre-scheduling indication information on the time domain scheduling unit numbered j.
  • the signal received at the frequency domain position of the indicated first downlink data channel is a partial signal of the first downlink data channel.
  • the terminal device continues to receive and monitor the time domain scheduling unit numbered j+1, at least in the time domain of the first downlink data channel on the time domain scheduling unit numbered j+1 indicated by the first post scheduling indication information. / or the frequency domain resource location receives the signal.
  • the terminal device may acquire the second post-scheduling indication information at a preset location of the time domain scheduling unit numbered j+1 or the time domain scheduling unit numbered j+2.
  • the time domain and/or frequency used for transmitting the first downlink data channel in the time domain scheduling unit numbered j+2 after the second post scheduling indication information includes the time domain scheduling unit numbered j+1
  • the domain resource information the terminal device determines that the first downlink data channel is not transmitted.
  • the terminal device continues to receive and monitor the time domain scheduling unit numbered j+2, at least in the time domain of the first downlink data channel on the time domain scheduling unit numbered j+2 indicated by the second post scheduling indication information. / or the frequency domain resource location receives the signal.
  • the terminal device may acquire, after the time domain scheduling unit numbered j+2 or the preset location of the time domain scheduling unit numbered j+3, a first post scheduling indication corresponding to the first pre-scheduling indication information and having an end identifier. information. After the terminal device monitors the first post scheduling indication information, it may be determined that the first downlink data channel is transmitted.
  • the terminal device may determine that the time domain scheduling unit numbered j+1 indicated by the first pre-scheduled indication information on the time domain scheduling unit numbered j is indicated by the first post scheduling information, and the number is j+2
  • the signal received by the time-frequency resource location of the first downlink data channel indicated by the second post-scheduling information on the domain scheduling unit is all of the first downlink data channel.
  • the terminal device may monitor at least one of the first downlink data channels for scheduling.
  • the at least one physical layer control channel of the first downlink data channel for scheduling may be a PDCCH.
  • the at least one physical layer control channel of the first downlink data channel used for scheduling may be sent by a time domain scheduling unit where the last post scheduling indication information according to the terminal device is used to determine whether the first downlink data channel is transmitted. Or sent by the time domain scheduling unit after the time domain scheduling unit.
  • the at least one physical layer control channel of the first downlink data channel for scheduling may include at least one of the following time-frequency resource information for transmitting the first downlink data channel:
  • the at least one physical layer control channel of the first downlink data channel for scheduling may also be used to indicate at least one of the following information:
  • the terminal device obtains the first pre-scheduling indication information on the time domain scheduling unit numbered j, and at least the first pre-scheduling indication information on the time domain scheduling unit numbered j
  • the frequency domain position of the indicated first downlink data channel receives the signal.
  • the terminal device may obtain the first post-scheduling indication information at a preset location of the time domain scheduling unit numbered j or the time domain scheduling unit numbered j+1.
  • the terminal device uses the time domain resource size and the time-frequency resource location indicated by the first pre-scheduling indication information, and the monitored first downlink scheduling indication information, the first downlink data channel is occupied.
  • the domain resource size determines that the first downlink data channel is not transmitted, or the terminal device determines that the first post-scheduling indication information does not include the end identifier, and determines that the first downlink data channel is not transmitted.
  • the terminal device determines that the signal received by the frequency domain location of the first downlink data channel indicated by the first pre-scheduling indication information on the time domain scheduling unit numbered j is a partial signal of the first downlink data channel.
  • the terminal device continues to receive and monitor at least one physical layer control channel, and monitors the first physical layer control channel in the time domain scheduling unit numbered j+1, the first physical layer control channel indicating the number is j+ The time domain and/or frequency domain resource location of the first downlink data channel on the time domain scheduling unit of 1.
  • the terminal device receives the signal at least in the time domain and/or the frequency domain resource location of the first downlink data channel on the time domain scheduling unit numbered j+1 indicated by the first physical layer control channel.
  • the terminal device may acquire the second post-scheduling indication information at a preset location of the time domain scheduling unit numbered j+1 or the time domain scheduling unit numbered j+2.
  • the time domain resource size and the time-frequency resource location indicated by the terminal device according to the first pre-scheduling indication information, and the monitored first post-scheduling indication information, the first physical control channel, and the second The time domain resource size occupied by the first downlink data channel determined by the scheduling indication information determines that the first downlink data channel is not transmitted, or the terminal device determines that the second post scheduling indication information does not include the end identifier to determine the first downlink data channel. Not transferred.
  • the terminal device continues to receive and monitor at least one physical layer control channel, and monitors a second physical layer control channel in the time domain scheduling unit numbered j+2, the second physical layer control channel indicating the number is j+ The time domain and/or frequency domain resource location of the first downlink data channel on the time domain scheduling unit of 2.
  • the terminal device receives the signal at least in the time domain and/or the frequency domain resource location of the first downlink data channel on the time domain scheduling unit numbered j+2 indicated by the second physical layer control channel.
  • the terminal device may acquire, after the time domain scheduling unit numbered j+2 or the preset location of the time domain scheduling unit numbered j+3, a first post scheduling indication corresponding to the first pre-scheduling indication information and having an end identifier. information.
  • the terminal device After the terminal device monitors the first post scheduling indication information, it may be determined that the first downlink data channel is transmitted.
  • the terminal device may determine that the time domain scheduling unit numbered j+1 indicated by the first pre-scheduling indication information on the time domain scheduling unit numbered j is indicated by the first physical layer control channel, and the number is j+
  • the signal received by the time-frequency resource location of the first downlink data channel indicated by the second physical layer control channel on the time domain scheduling unit of 2 is all of the first downlink data channel.
  • the first pre-scheduling indication information is further used to indicate a size of a time domain resource allocated by the network device to the terminal device.
  • the terminal device may monitor (or acquire) the preset location of each time domain scheduling unit of the subsequent time domain scheduling unit of the time domain scheduling unit where the first pre-scheduling indication information is located.
  • Post-schedule indication information The post scheduling indication information at the preset location of the j+1th time domain scheduling unit is used to indicate a time domain unit that the terminal device is reassigned in the jth time domain scheduling unit. (or a time domain unit not used to transmit the first downlink data channel), where j ⁇ 1. That is, the post scheduling indication information of the next time domain scheduling unit is used to indicate the time domain resource occupancy situation in the last time domain scheduling unit.
  • the post scheduling indication information of the jth time domain scheduling unit may also be located at a preset location of the jth time domain scheduling unit. That is, the post scheduling indication information of the current time domain scheduling unit is used to indicate the time domain resource in the current time domain scheduling unit. Source occupancy.
  • the terminal device after receiving the pre-scheduling indication information, the terminal device considers that the time domain unit is used to transmit the first downlink data, unless the post-scheduling indication information indicates that the time domain unit is re-allocated. channel. In other words, if the kth transmission unit in the jth time domain scheduling unit is not reassigned by the corresponding post scheduling indication information, the kth transmission unit is determined to be used to transmit the first downlink. Data channel.
  • the terminal device after receiving the pre-scheduling indication information, the terminal device considers that the time domain frequency domain unit is used to transmit the first downlink, unless the post-scheduling indication information indicates that the time domain frequency domain unit is re-allocated. Line data channel.
  • the pth frequency domain unit on the kth transmission unit in the jth time domain scheduling unit is not reassigned by the corresponding post scheduling indication information, at this time on the kth transmission unit
  • the pth frequency domain unit is determined to be used to transmit the first downlink data channel.
  • the terminal device After obtaining the post-scheduling indication information, the terminal device determines, according to the time domain resource size indicated by the first pre-scheduling indication information and the monitored time-domain resource size determined by the first downlink data channel. Whether the downlink data channel is transmitted. After the terminal device determines that the first downlink data channel is not transmitted, the terminal device continues to monitor the post scheduling indication information. For example, the terminal device determines, according to the monitored N post scheduling indication information, that the first downlink data channel is not transmitted, and determines that the first downlink data channel is transmitted according to the N+1th post scheduling indication information, where the The N post-scheduling indication information is the first post-scheduling indication information described above.
  • the size of the time domain resource in the embodiment of the present invention may be expressed as the number of time domain units.
  • the size of the time domain resource in the embodiment of the present invention may be expressed as a time-frequency resource unit (for example, resource particle, RE, The number of Resource elements).
  • the terminal device determines, according to the first pre-scheduling indication information and all the post-scheduling indication information.
  • the predefined time domain and frequency domain resources not used for transmitting the data channel may be excluded. That is, the time domain resource size occupied by the first downlink data channel determined by all the post scheduling indication information does not include the predefined time domain and frequency domain resources that are not used for transmitting the data channel.
  • the pre-defined may be pre-configured in the device, or the network device is configured in advance to the terminal device.
  • the terminal device first determines the number of OFDM symbols occupied by the PDCCH region in the subframe by using a PCFICH (Physical Control Format Indicator Channel), and excludes the PDCCH region. Can be used to transmit data channels outside of the time-frequency resources. For example, in a 5G system, a terminal device can avoid time-frequency resources dedicated to carrying a PDCCH and a reference signal (RS).
  • PCFICH Physical Control Format Indicator Channel
  • the frequency hopping position of the first downlink data channel transmitted in the time domain scheduling unit may be a continuation of the frequency hopping position of the jth time domain scheduling unit, or may be restarted in the j+1th time domain scheduling unit.
  • the terminal device can use the first downlink data channel determined according to the time domain resource size indicated by the first pre-scheduling indication information and all the monitored post-scheduling indication information.
  • the size of the time domain resource determines whether the first downlink data channel is transmitted, and the network device allocates the first pre-scheduling in addition to the predefined time domain and frequency domain resources not used for transmitting the data channel in the first available time domain unit. Indicates a first downlink data channel transmitted on a frequency domain resource indicated by the information.
  • the terminal device determines, in the jth time domain scheduling unit, that the first downlink data channel is a transmission complete, and then the pre-defined non-transmission is performed in the j+1th time domain scheduling unit.
  • the first downlink data channel is received on the frequency domain resource indicated by the first pre-scheduling indication information on the first available time domain unit other than the time domain and the frequency domain resource of the data channel.
  • the resources other than the predefined time domain and frequency domain resources that are not used for transmitting the data channel are as described above, and are not described herein again.
  • the communication standard may be predefined, or the network device may configure a receiving modulation symbol proportional threshold for the terminal device through radio resource control (RRC) signaling.
  • RRC radio resource control
  • the pre-definition has been explained in detail in the foregoing, and will not be described here. If the first downlink data channel scheduled by the first pre-scheduling indication information is not transmitted, but the terminal device physique determines that the ratio of the received modulation symbols to the total modulation symbol of the scheduled first downlink data channel exceeds the reception.
  • the modulation symbol proportional threshold the terminal device stops receiving the first data channel, otherwise the terminal device continues to receive the first data channel.
  • the received modulation symbol proportional threshold may also be related to a Modulation and coded scheme index (MCS sequence number).
  • the terminal device only the terminal device whose MCS sequence number indicated by the first pre-scheduling indication information is lower than a value can determine whether to continue to receive the first data channel according to the received modulation symbol proportional threshold.
  • the terminal device uses different received modulation symbol proportional thresholds. That is, in the case where an MCS sequence number is adopted, the network device determines whether to continue to transmit the first data channel by using a received modulation symbol proportional threshold; the terminal device uses the same threshold to determine whether to continue receiving the first data channel.
  • the time domain scheduling unit is a 1 ms subframe
  • the terminal device obtains the first pre-scheduling indication information in the subframe numbered j, where the first pre-scheduling indication information indicates the first downlink data channel.
  • the occupied time domain resource is 6 transmission units, and the terminal device may obtain the first post scheduling indication information in the subframe numbered j+1, where the first post scheduling indication information is used to indicate the subframe numbered j.
  • the transmission units numbered 4 and 6 are reassigned (or are not used to transmit the first downlink data channel), and the terminal device may determine the number in the subframe numbered j according to the first post scheduling indication information.
  • the transmission unit of 2, 3, 5, and 7 is (possibly) for transmitting the first data channel, and the size of the time domain resource indicated by the terminal device according to the pre-scheduling information and the first determined by the terminal device according to the first post-scheduling indication information
  • the size of the time domain resource occupied by the downlink data channel determines that the first downlink data channel is not transmitted, and the terminal device continues to obtain the second post scheduling indication information in the j+2 subframes, and the second post scheduling Instruction information is used to refer to
  • the time domain unit numbered 1 in the subframe numbered j+1 is reallocated (not used to transmit the first downlink data channel), and the terminal device determines, according to the second post scheduling indication information, that the number is j+1.
  • the transmission units numbered 2 and 3 in the subframe are used to transmit the first data channel, and the terminal device determines that there are already 6 transmission units for transmitting the first data channel, so that the terminal device determines that the transmission of the first data channel is completed.
  • the at least one post-scheduling indication information does not include the end identifier, and the terminal device indicates, according to the size of the time domain resource indicated by the first pre-scheduling indication information, and the monitored at least one post-scheduling indication information.
  • the size of the reallocated time domain resource itself determines whether the first downlink data channel is transmitted.
  • the time domain scheduling unit is a 1 ms subframe, and the terminal device is in the example.
  • the frequency domain position receiving signal of the first downlink data channel indicated by the first pre-scheduling indication information is at least in the subframe numbered j.
  • the terminal device may obtain the first post scheduling indication information at a preset position of the subframe numbered j+1, where the first post scheduling indication information is used to indicate which time domain resources are used in the subframe numbered j.
  • the terminal device determines that the time domain resource size for the first downlink data channel transmission in the subframe numbered j is smaller than the first downlink data channel allocation indicated by the first pre-scheduling indication information.
  • the size of the time domain resource the terminal device determines that the first downlink data channel has not been transmitted. In other words, the terminal device determines that the signal received at the frequency domain position of the first downlink data channel indicated by the first pre-scheduling indication information on the subframe numbered j is a partial signal of the first downlink data channel.
  • the terminal device continues to receive and monitor the subframe numbered j+1, and receives the signal in the frequency domain position of the first downlink data channel indicated by the first pre-scheduling indication information on at least the subframe numbered j+1.
  • the terminal device may acquire the first post-scheduling indication information at a preset position of the subframe numbered j+2.
  • the first post scheduling indication information is used to indicate which time domain resources on the subframe numbered j+1 are used for transmission of the first downlink data channel.
  • the terminal device determines the sum of the time domain resource size for the first downlink data channel transmission and the time domain resource size for the first downlink data channel transmission on the subframe numbered j+1 in the subframe numbered j.
  • the terminal device determines that the first downlink data channel is transmitted. In other words, the terminal device determines that the signal received in the frequency domain position of the first downlink data channel indicated by the first pre-scheduled indication information on the subframe numbered j and the subframe numbered j+1 is the first All signals of the data channel.
  • the preset location of each time domain scheduling unit in the foregoing manner may be a time domain location where the PDCCH is located in each time domain scheduling unit.
  • the terminal device may monitor at least one physical layer control channel for scheduling the first downlink data channel.
  • the at least one physical layer control channel of the first downlink data channel for scheduling may be a PDCCH.
  • the at least one physical layer control channel of the first downlink data channel used for scheduling may be sent by a time domain scheduling unit where the last post scheduling indication information according to the terminal device is used to determine whether the first downlink data channel is transmitted. Or sent by the time domain scheduling unit after the time domain scheduling unit.
  • the at least one physical layer control channel of the first downlink data channel for scheduling may include at least one of the following time-frequency resource information for transmitting the first downlink data channel:
  • the at least one physical layer control channel of the first downlink data channel for scheduling may also be used to indicate at least one of the following information:
  • the terminal device obtains the first downlink data channel according to the first pre-scheduling indication information, the at least one post-scheduling indication information, and the at least one physical layer control channel, and the terminal device obtains the first pre-time on the time domain scheduling unit numbered j.
  • the terminal device After scheduling the indication information, at least the first downlink indicated by the first pre-scheduling indication information on the time domain scheduling unit numbered j
  • the frequency domain position of the data channel receives the signal.
  • the terminal device may obtain the first post-scheduling indication information at a preset location of the time domain scheduling unit numbered j or the time domain scheduling unit numbered j+1.
  • the terminal device uses the time domain resource size and the time-frequency resource location indicated by the first pre-scheduling indication information, and the monitored first downlink scheduling indication information, the first downlink data channel is occupied.
  • the domain resource size determines that the first downlink data channel has not been transmitted.
  • the terminal device determines that the signal received by the frequency domain location of the first downlink data channel indicated by the first pre-scheduling indication information on the time domain scheduling unit numbered j is a partial signal of the first downlink data channel.
  • the terminal device continues to receive and monitor at least one physical layer control channel, and monitors the first physical layer control channel in the time domain scheduling unit numbered j+1, the first physical layer control channel indicating the number is j+ The time domain and/or frequency domain resource location of the first downlink data channel on the time domain scheduling unit of 1.
  • the terminal device receives the signal at least in the time domain and/or the frequency domain resource location of the first downlink data channel on the time domain scheduling unit numbered j+1 indicated by the first physical layer control channel.
  • the terminal device may acquire the second post-scheduling indication information at a preset location of the time domain scheduling unit numbered j+1 or the time domain scheduling unit numbered j+2.
  • the terminal device continues to receive and monitor at least one physical layer control channel, and monitors a second physical layer control channel in the time domain scheduling unit numbered j+2, the second physical layer control channel indicating the number is j+ The time domain and/or frequency domain resource location of the first downlink data channel on the time domain scheduling unit of 2.
  • the terminal device receives the signal at least in the time domain and/or the frequency domain resource location of the first downlink data channel on the time domain scheduling unit numbered j+2 indicated by the second physical layer control channel.
  • the terminal device may acquire, after the time domain scheduling unit numbered j+2 or the preset location of the time domain scheduling unit numbered j+3, a first post scheduling indication corresponding to the first pre-scheduling indication information and having an end identifier. information.
  • the terminal device monitors the first post-scheduling indication information, the time domain resource size and the time-frequency resource location indicated by the terminal device according to the first pre-scheduling indication information, and the first post-scheduling indication information and the first physical entity that are monitored
  • the time domain resource size occupied by the first downlink data channel determined by the control channel, the second post-scheduling indication information, the second physical control channel, and the first post-scheduling indication information determines that the first downlink data channel is transmitted.
  • the terminal device may determine that the time domain scheduling unit numbered j+1 indicated by the first pre-scheduling indication information on the time domain scheduling unit numbered j is indicated by the first physical layer control channel, and the number is j+
  • the signal received by the time-frequency resource location of the first downlink data channel indicated by the second physical layer control channel on the time domain scheduling unit of 2 is all of the first downlink data channel.
  • the terminal device may monitor the time for scheduling the PDCCH of the untransmitted first downlink data channel until a predetermined HARQ feedback information is sent.
  • the first pre-scheduling indication information indicates that the terminal device sends the time-frequency resource location of the HARQ feedback corresponding to the first downlink data channel, where the first pre-scheduling indication information indicates that the terminal device is in the Receiving the first downlink data channel by the j time domain scheduling unit, if the terminal device determines the first time according to the time domain resource size indicated by the first pre-scheduling indication information and the monitored post-scheduling indication information of the jth time domain scheduling unit The size of the time domain resource occupied by the downlink data channel determines that the first downlink data channel is not transmitted, and the terminal device demodulates and decodes the first downlink data channel that has been received, and locates the time-frequency resource in the specified HARQ feedback. Feedback received results. If the feedback information is NACK, the terminal device monitors the PDCCH scheduling the first downlink data channel that is not transmitted. The content included in the PDCCH is as described in detail above, and details are not described herein again
  • the post scheduling indication information used by the terminal device to determine the time domain unit occupied by the downlink data channel in the jth subframe is located at a preset position of the j+1th subframe, for example, J+1th subframe
  • the PDCCH channel region is a preferred embodiment of the present invention.
  • the post scheduling indication information used by the terminal device to determine the time domain unit occupied by the downlink data channel in the jth subframe may also be located at a preset position of the jth subframe, for example, the last OFDM of the jth subframe.
  • the subframe is only an exemplary description, and in a specific implementation, the subframe may be replaced by any time domain scheduling unit or time domain unit described above.
  • each post-scheduling indication information may include a bitmap in which the number of bits included in the bitmap is the same as the time-domain unit in the time domain scheduling unit. Still taking FIG. 4 as an example, assume that "1" represents a time domain unit for being reassigned, and "0" represents a time domain unit that is not assigned.
  • One time domain scheduling unit is one subframe, one subframe includes seven time domain units, and the post scheduling indication information at the preset position of the subframe numbered j+1 may include “0001010”.
  • the terminal device may be based on The post-scheduling indication information at the preset position of the j+1th subframe is determined to be redistributed in the two time domain units allocated to the first downlink data channel (numbered 4 and 6 transmission)
  • the unit includes the post scheduling indication information (the first post scheduling indication information) in which the subframe numbered j+2 is preset to include “0100000”.
  • the terminal device may determine that the transmission unit numbered 2 in the j+1th subframe is reallocated, and therefore determines that the transmission units numbered 3 and 4 are used to transmit the first downlink data channel.
  • the terminal may determine the M time-domain units and q occupied by the downlink signal according to the M*q occupation indication information included in the first post-scheduling indication information.
  • Which time-frequency units of M*q time-frequency resource units composed of frequency domain units are used for transmission of the first downlink data channel.
  • one frequency domain unit may be one resource block or one resource block group.
  • the first post-scheduling indication information may include a bitmap, and the bits included in the bitmap may correspond to the occupation indication information mentioned above. It is assumed that "1" indicates that the first downlink data channel is transmitted, and "0" indicates that the first downlink data channel is not used for transmission.
  • the first post-scheduling indication information indicates that the resources occupied by the first downlink data channel in the first time period are all time domain resources in the downlink signal received by the terminal device. / or frequency domain resources. If all the bits in the bitmap are "0”, the first post-schedule indication information indicates that the downlink signal received by the terminal device does not include the resource occupied by the first downlink data channel in the first time period.
  • the network device stops transmitting the first data channel, and the terminal device stops receiving the first data channel.
  • the first data channel is not transmitted, indicating that the network device can continue to send the first data channel, and the terminal device can continue to receive the first data channel.
  • the terminal device determines whether the first data channel is transmitted or not indicates that the terminal device determines whether to continue to receive the first data channel.
  • the terminal device specifically adopts one or more of the foregoing manners, and may be configured or agreed by the network device.
  • the at least one post-scheduling indication information is used by the terminal device to determine the post-scheduling indication information that the first downlink data channel is transmitted, and may include at least one of the following information:
  • the data indication information used to indicate the initial transmission or the retransmission when the downlink data transmission is performed.
  • the number of information bits and the code rate of the transport block in the downlink data transmission may be a transport block size (TBS) serial number.
  • TBS transport block size
  • Redundant version Specifically, if the HARQ adopts a redundant incremental method, the redundancy version number needs to be transmitted, so that the user can know where the received signal is placed in the decoding soft buffer when decoding.
  • the terminal device sends related information of the Hybrid Automatic Repeat reQuest (HARQ) feedback information.
  • HARQ Hybrid Automatic Repeat reQuest
  • Modulation and coded scheme index (MCS index)
  • the terminal scheduling indication information used by the terminal device to determine that the first downlink data channel is transmitted includes at least one of two types:
  • the identifier may be an ID or a network identifier, for example, scrambling with the same scrambling code
  • the first post scheduling indication may be the last post scheduling indication information corresponding to the first pre-scheduling indication information, where the first post scheduling indication information is used by the terminal.
  • the device determines that the first downlink data channel is transmitted. In other words, the terminal device may determine, according to the first post scheduling indication information, that the first downlink data channel is transmitted.
  • the downlink signal sent by the network device may include second pre-scheduling indication information (new pre-scheduling indication information), where the second pre-scheduling indication information may be used to indicate that the terminal device receives Second downlink data channel (new downlink data channel). Therefore, the terminal device monitors the second pre-scheduling indication information while monitoring the at least one post-scheduling indication information.
  • the monitoring the second pre-scheduling indication information may include the following two situations:
  • the terminal device determines that the second pre-scheduling indication information is monitored after the transmission of the first downlink data channel is completed.
  • the terminal device may determine the time domain resource occupied by the second downlink data channel according to the second pre-scheduling indication information, and obtain the second downlink data channel, where the terminal device determines the second downlink data.
  • the mode of the time domain resource occupied by the channel refer to the manner in which the terminal device determines the time domain resource occupied by the first downlink data channel. For brevity, details are not described herein again.
  • the terminal device monitors the second pre-scheduling indication information before determining that the transmission of the first downlink data channel is completed.
  • the second pre-scheduling indication information may include at least one of the following two types:
  • the second scheduling indication information is used to indicate that the terminal device receives the second downlink data channel, and the frequency domain resource occupied by the second downlink data channel is the same as the frequency domain resource occupied by the first downlink data channel, and the terminal device determines the scheduling after the missed detection. Instructing information, when the terminal device schedules the indication information after the missed detection, if the terminal device has confirmed the time-frequency resource for the feedback information transmission, the terminal device can feed back to the network device at the corresponding time-frequency position.
  • the NACK information corresponding to the data channel is used to facilitate retransmission of the first downlink data channel by the network device.
  • the communication standard stipulates that the network device does not schedule the transmission of the second downlink data channel before the transmission of the first downlink data channel is completed.
  • the terminal device determines the scheduling indication information after the missed detection, and the terminal device determines When the indication information is scheduled after the missed detection, if the terminal device has confirmed the time-frequency resource of the feedback information transmission, the terminal device may feed back the NACK information corresponding to the first downlink data channel to the network device at the corresponding time-frequency position. In order to facilitate the network device to the first The downlink data channel is retransmitted.
  • the terminal device may determine that the scheduling indication information is missed.
  • the terminal device may feed back the NACK information corresponding to the first downlink data channel to the network device at the corresponding time-frequency location, and continue to monitor the network device scheduling.
  • Scheduling indication information of the first downlink data channel retransmission may also clear the current receiving signal buffer or re-detect the scheduling indication information in the buffer signal, thereby avoiding demodulation of the received signal by confusing the data before and after the two scheduling. Decoding performance.
  • the second scheduling indication information is used to indicate that the terminal device receives the second downlink data channel, if the communication standard does not explicitly prohibit the network device from scheduling the transmission of the second downlink data channel before the transmission of the first downlink data channel is completed, or the communication standard explicitly specifies the network.
  • the device may schedule transmission of the second downlink data channel before the first downlink data channel is transmitted, and the terminal device confirms that the frequency domain resource occupied by the second downlink data channel and the frequency domain resource occupied by the first downlink data channel are different.
  • the terminal device continues to monitor the post scheduling indication information corresponding to the first pre-scheduling indication information; and the terminal device monitors the post-scheduling indication information corresponding to the second pre-scheduling indication information.
  • the terminal device when the terminal device detects the second pre-scheduling indication information and does not detect the first post-scheduling indication information, the terminal device determines the post-missing scheduling indication information; and/or the first pre-scheduling indication information indicates The size of the time domain resource and the time domain resource occupied by the first downlink data channel determined by the terminal device according to the monitored at least one post scheduling indication information are not equal or the difference is greater than a certain threshold (for example, the first pre-scheduling indication)
  • the information indicates that the first downlink data channel occupies 6 time domain units, and the terminal device determines, according to the monitored at least one post-scheduling indication information, that only four time domain units are acquired before monitoring the second pre-scheduling indication information, and the terminal device determines Dispatch indication information after missed detection.
  • the terminal device may feed back the NACK information corresponding to the first downlink data channel to the network device at the corresponding time-frequency location, and continue to monitor the first downlink of the network device scheduling. Scheduling indication information for data channel retransmission.
  • the terminal device determines that the scheduling indication information after the missed detection may also clear the current receiving signal buffer or re-detect the scheduling indication information in the buffer signal, thereby avoiding demodulation of the received signal by confusing the data before and after the two scheduling. Decoding performance.
  • the terminal device after the terminal device receives the “first pre-scheduling indication information”, the terminal device continuously receives the downlink signal, and the standard may specify the maximum buffer amount used by the terminal device device to receive the downlink signal. Buffer).
  • One is to specify the size of the buffer, and the buffer signal overflow is determined after the downlink signal received by the terminal device reaches the specified buffer size;
  • the other is to specify that the terminal device continuously receives several time domain units (such as subframes, time slots, mini-slots or OFDM symbols) in a certain bandwidth (for example, bandwidth corresponding to 100 resource blocks) or how many time domains are continuously received.
  • time domain units such as subframes, time slots, mini-slots or OFDM symbols
  • bandwidth for example, bandwidth corresponding to 100 resource blocks
  • the method of the embodiment of the present invention further includes: the terminal device reports its own buffer capability to the network device. If the terminal device determines that the receiving buffer overflows, and still does not reach the "monitor start position of the post-scheduling indication information", or fails to successfully monitor the "post-scheduling indication information", discard all the data in the buffer and restart The second pre-scheduled indication information is monitored.
  • the method for downlink scheduling resources in the embodiment of the present invention is described above. In the following, another method 200 for downlink scheduling resources in the embodiment of the present invention is described.
  • the network device in the method 200 may be the same network device as the network device in the method 100 above, or may be a different network device. The present invention is not limited herein.
  • the terminal in the method 200 The terminal device in the device and the method 100 may be the same terminal device, or may be a different terminal device, and the present invention is not limited thereto.
  • the network device determines to use a target indication mode in the multiple indication modes to indicate that the time domain resource and/or the frequency domain resource allocated by the first downlink data channel of the terminal device is used.
  • the terminal device determines, by using the target monitoring mode corresponding to the target indication mode, the scheduling indication information that is sent by the network device by using the target indication mode.
  • the first indication mode includes a first indication mode, where the first indication mode is a mode in which the pre-scheduling indication information indicates a start-stop time domain resource and/or a frequency domain resource, and the first monitoring mode corresponding to the first indication mode is a terminal device. a mode of scheduling indication information before monitoring;
  • the plurality of indication modes include a second indication mode, where the pre-scheduling indication information indicates the start-stop time domain resource and/or the frequency domain resource, and the post-scheduled indication information after the pre-scheduled indication information in the time domain indicates the start and end time
  • the mode of the time domain resource and/or the frequency domain resource occupied by the downlink data channel in the domain resource (or the mode of the post scheduling indication information indicating the time domain resource and/or the frequency domain resource in the start time domain resource)
  • the second monitoring mode corresponding to the second indication mode is a mode in which the terminal device monitors the pre-scheduled indication information and the scheduling indication information after the specified location detection corresponding to the previous scheduling indication information.
  • the plurality of indication modes include a third indication mode, where the pre-scheduling indication information indicates that the terminal device starts to receive the downlink data channel, and the post-scheduling indication information after the pre-scheduling indication information is used to indicate the downlink signal received by the terminal device.
  • a mode of resources occupied by a downlink data channel of the terminal device or a mode of the time domain resource and/or a frequency domain resource that is re-allocated in the start and end time domain resources
  • the third indication mode corresponds to a mode
  • the third monitoring mode is a mode in which the terminal device monitors the pre-scheduled indication information and the post-monitoring scheduling indication information.
  • the manner in which the network device determines the target indication mode and the terminal device determines the target monitoring mode may include at least one of the following mode startup modes:
  • the network device defines a period, that is, the network device and the terminal device each have a timer.
  • the configuration may be configured to each user by terminal-specific (UE-specific) high-level signaling, and the network device starts the timer after confirming that the terminal device correctly receives the configuration command, and the terminal device will correctly receive the configuration command after sending the acknowledgement.
  • the timer is started after the message, and the mode configuration begins to take effect when the timer expires (expire).
  • the network device can send high-level signaling for indicating the value of the timer to the terminal device, so that the network device and the terminal device can start the corresponding mode when the timer expires.
  • the network device is configured in advance to the terminal device by means of UE-specific or group-specific high-level signaling. Then, a certain mode of enabling a certain mode or changing from one mode to another mode is triggered by dedicated trigger signaling (by higher layer signaling or medium access control layer signaling or physical layer signaling).
  • the method 200 may further include:
  • the network device may send, to the terminal device, mode high-level signaling, which is used to indicate the target indication mode. After receiving the mode high-level signaling, the terminal device may determine to use the target monitoring mode to monitor the scheduling indication information corresponding to the target indication mode.
  • the first monitoring mode may be specifically: the terminal device only monitors the pre-scheduled indication information, where the pre-scheduling indication information includes a frequency domain resource location of the scheduling terminal device and a starting location and an ending location of the time domain resource, where the time domain ending location is determined. And the data channel carried on the frequency domain resource allocated to the terminal device is the terminal device from the start position to the end position. In this mode, there is no post-scheduling indication message to send. (The terminal device only monitors the pre-scheduled indication information, the end position is fixed, and the received signals are all of the terminal device)
  • the mode high layer signaling may include:
  • the time domain scheduling unit used when scheduling time domain resources.
  • pre-monitoring scheduling indication information period and the time domain scheduling unit may be the same or different, and they may be OFDM symbols, or mini slots, or slots, or subframes. If the standard stipulates that the two are the same, the network device only needs to configure one during the configuration process.
  • the second monitoring mode may be specifically: the scheduling indication information of the terminal device before monitoring, where the pre-scheduling indication information includes a frequency domain resource location of the scheduling terminal device, a starting location and an ending location of the time domain resource, and the terminal device specifies the ending location or the intermediate location.
  • Position and end position detection scheduling indication information, the time domain end position determining, the post scheduling indication information includes at least a time domain resource starting position to a time domain resource ending position, and which time-frequency resources are not allocated to the terminal The time-frequency resources of the device or which are allocated to the terminal device.
  • the terminal device monitors the pre-schedule indication information, and the indication information is scheduled after the detection of the specified location corresponding to the previous scheduling indication information, and the downlink signal received by the terminal device may include the downlink data channel of the other terminal device.
  • the mode high layer signaling may include:
  • a time domain scheduling unit used when scheduling time domain resources
  • the terminal device starts from the initial time domain scheduling unit, and schedules the indication information after detecting the specified position of the last time domain scheduling unit in each cycle in a fixed period. This information is needed at this time. .
  • the time-domain scheduling unit and the post-scheduling indication information period used in the scheduling information period and the scheduling time domain resource may be displayed in the signaling of the network device configuration terminal device, or may be pre-defined by the standard.
  • the terminal equipment of this mode adopts a fixed monitoring period and a scheduling time domain resource unit.
  • the third monitoring mode may be: a pre-schedule indication information of the terminal device, where the pre-scheduling indication information is used to indicate that the terminal device receives the downlink data channel of the terminal device, where the pre-scheduling indication information may further include the frequency domain resource location of the scheduling terminal device. And at least one of a start position of the time domain resource and a monitoring start position of the post-scheduling indication information.
  • the terminal device schedules the indication information after the monitoring start position of the post-scheduling indication information starts monitoring, and determines the end position according to the post-scheduling indication information.
  • the post-scheduling indication information includes at least a start time position (a time domain position at which the downlink signal is received) to a time domain end position (a time domain position where the downlink data channel is transmitted), and which time-frequency resources are unallocated. And the time-frequency resources of the terminal device are allocated to the terminal device (or the post-scheduling indication information includes time domain resources allocated from the time domain resource start position to the time domain resource end position to the terminal device, which are Redistribution). (The terminal equipment monitors the pre-scheduled indication information, and the monitoring indication information is monitored, and the received signal may be given to itself)
  • the mode high layer signaling may include:
  • a time domain scheduling unit used when scheduling time domain resources
  • the terminal device obtains the “monitoring start position of the post-scheduling indication information” from the pre-start scheduling indication information, and starts monitoring from the position with the “period of the post-monitoring scheduling information” as a period.
  • the location of the post-scheduling indication information is dynamic, and the terminal device needs to monitor the post-scheduling indication information, which is different from mode 2.
  • the above two periodic and time domain scheduling units may be the same or different, and they may be one or several OFDM symbols, or one or more mini slots, or one slot, or one subframe. If the standard specifies that any two or three of the three are all the same, the eNB only needs to configure different ones or only one type during the configuration process.
  • the time-domain scheduling unit and the post-scheduling indication information period used in the scheduling information period and the scheduling time domain resource may be displayed in the signaling of the base station configuration terminal device, or may be pre-defined by the standard.
  • the terminal equipment of the mode adopts a fixed monitoring period and a time domain scheduling unit.
  • the third monitoring mode corresponds to the three modes of the post-scheduling indication information in the foregoing.
  • the related description in the third monitoring mode refer to the related description of the foregoing communication method 100, and details are not described herein for brevity. .
  • the terminal device and the network device can use different modes in different frequency domain locations.
  • the network device uses the first indication mode in the first frequency domain location, the second indication information in the second frequency domain location, and the third indication mode in the third frequency domain location, and correspondingly, the terminal device is in the first frequency domain.
  • the location uses a first monitoring mode, a second monitoring mode is used at the second frequency domain location, and a third monitoring mode is used at the third frequency domain location.
  • the method for downlink scheduling resources according to the embodiment of the present invention is described above with reference to FIG. 1 to FIG. 5.
  • the terminal device and the network device according to the embodiment of the present invention are described below with reference to FIG. 6 to FIG.
  • FIG. 6 is a schematic block diagram of an example of a terminal device according to an embodiment of the present invention. As shown in FIG. 6, the terminal device 300 includes:
  • the receiving module 310 is configured to:
  • first pre-scheduling indication information where the first pre-scheduling indication information is used to indicate that the receiving module 310 receives the first downlink data channel
  • the processing module 320 is configured to monitor, in the downlink signal sent by the network device, at least one post-scheduling indication information, where the at least one post-scheduling indication information is used by the processing module 320 to determine the first one of the received downlink signals. Time domain resources occupied by the downlink data channel.
  • the at least one post-scheduling indication information includes a first one corresponding to the first pre-scheduling indication information
  • the first indication information is used to indicate the time domain resource occupied by the first downlink data channel in the downlink signal received by the receiving module 310 in the first time period, where the first The time period is a time period from the receiving module 310 receiving the downlink signal sent by the network device to the receiving module 310 monitoring the first post scheduling indication information, where the first post scheduling indication information is further used to indicate The first downlink data channel is transmitted.
  • the first post scheduling indication information includes N occupation indication information, and the N occupation indication information is in one-to-one correspondence with N time domain units occupied by the downlink signal received by the receiving module 310, and each The occupancy indication information is used to indicate whether the corresponding time domain unit is used to transmit the first downlink data channel.
  • the first post scheduling indication information includes N*q occupation indication information, and the N*q occupation indication information and the N time domain units and q occupied by the downlink signal received by the receiving module 310.
  • the N*q time-frequency resource units composed of the frequency domain units are in one-to-one correspondence, and each occupation indication information is used to indicate whether the corresponding time-frequency resource unit is used to transmit the first downlink data channel.
  • the first pre-scheduling indication information is further used to instruct the receiving module 310 to monitor an initial monitoring location of the first post-scheduling indication information.
  • the jth post scheduling indication information in the at least one post scheduling indication information is located at a preset position of the j+1th time domain scheduling unit occupied by the downlink signal received by the receiving module 310, where The jth post scheduling indication information is used by the processing module 320 to determine a time domain resource and/or a frequency domain occupied by the first downlink data channel in a downlink signal received in the jth time domain scheduling unit. Resources, where j ⁇ 1.
  • the jth post scheduling indication information in the at least one post scheduling indication information is located at a preset position of the jth time domain scheduling unit occupied by the downlink signal received by the receiving module 310, where the The jth post scheduling indication information is used by the processing module 320 to determine time domain resources and/or frequency domain resources occupied by the first downlink data channel in the downlink signal received in the jth time domain scheduling unit, Where j ⁇ 1.
  • the at least one post-scheduling indication information includes first post-scheduling indication information corresponding to the first pre-scheduling indication information, where the first post-scheduling indication information is used to indicate the first downlink data channel
  • the first post-scheduling indication information is the last post-scheduling indication information in the at least one post-scheduling indication information.
  • the first pre-scheduling indication information is used to indicate a size of a time domain resource allocated by the network device to the first downlink data channel;
  • the processing module 320 is further configured to: use, according to the size of the time domain resource indicated by the first pre-schedule indication information, and the time domain resource occupied by the first downlink data channel determined according to the at least one post-scheduling indication information a size, determining whether the first downlink data channel is transmitted;
  • the receiving module 310 is further configured to continue to monitor the post scheduling indication information.
  • the jth post scheduling indication information includes M occupation indication information, where the M occupation indication information is in one-to-one correspondence with the M time domain units included in the jth time domain scheduling unit, and each The occupancy indication information is used to indicate whether the corresponding time domain unit is used to transmit the first downlink data channel.
  • the jth post scheduling indication information includes M*q occupation indication information, and the M*q occupation indication information and the M time domain units included in the jth time domain scheduling unit
  • the M*q time-frequency resource units composed of the q frequency-domain units are in one-to-one correspondence, and each of the occupation indication information is used to indicate whether the corresponding time-frequency resource unit is used to transmit the first downlink data channel.
  • the receiving module 310 is further configured to: monitor a second preamble in a downlink signal sent by the network device.
  • the second pre-schedule indication information is used to indicate that the receiving module 310 receives the second downlink data channel.
  • the at least one post-scheduling indication information is used by the processing module 320 to determine that the downlink scheduling indication information of the downlink data transmission is used to instruct the sending module 310 to send the time domain resource of the hybrid automatic retransmission request HARQ.
  • the terminal device 300 herein is embodied in the form of a functional module.
  • module may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor for executing one or more software or firmware programs (eg, a shared processor, a proprietary processor, or a group). Processors, etc.) and memory, merge logic, and/or other suitable components that support the described functionality.
  • ASIC application specific integrated circuit
  • the terminal device 300 may be specifically the terminal device of the foregoing embodiment, and the terminal device 300 may be used to perform various processes and/or steps corresponding to the terminal device in the foregoing method embodiments. To avoid repetition, we will not repeat them here.
  • FIG. 7 is a schematic block diagram of another example of a terminal device according to an embodiment of the present invention. As shown in FIG. 7, the terminal device 400 includes:
  • the transceiver 410, the memory 420, and the processor 430, optionally, the terminal device 400 further includes a bus system 440 interconnecting the processor 430, the memory 420, and the transceiver 410, the memory 420 for storing instructions, the processing
  • the controller 430 is configured to execute the instruction stored by the memory 420 to the controller transceiver 410 to receive the first pre-scheduling indication information sent by the network device, where the first pre-scheduling indication information is used to indicate that the terminal device receives the first And receiving, by the network device, the downlink signal sent by the network device according to the first pre-scheduling indication information, where the downlink signal sent by the network device includes the first downlink data channel; and the downlink sent by the network device And monitoring, by the processor 430, the time domain resource occupied by the first downlink data channel in the received downlink signal (ie, the processor 430)
  • the method further includes determining, according to the at least one post-scheduling indication information,
  • the terminal device 400 may be specifically the terminal device in the foregoing embodiment, and may be used to perform various steps and/or processes corresponding to the terminal device in the foregoing method embodiment.
  • the memory 420 can include read only memory and random access memory and provide instructions and data to the processor. A portion of the memory may also include a non-volatile random access memory.
  • the memory can also store information of the device type.
  • the processor 430 can be configured to execute instructions stored in a memory, and when the processor executes the instructions, the processor can perform various steps corresponding to the network device in the above method embodiments.
  • FIG. 8 is a schematic block diagram of an example of a network device according to an embodiment of the present invention. As shown in FIG. 8, the network device 500 includes:
  • the sending module 510 is configured to:
  • the terminal device Sending, by the terminal device, the first pre-scheduling indication information, where the first pre-scheduling indication information is used to indicate that the terminal device receives the first downlink data channel;
  • the terminal device Sending a downlink signal to the terminal device, where the downlink signal includes the first downlink data channel and at least one post-scheduling indication information, where the at least one post-scheduling indication information is used by the terminal device to determine the received downlink The time domain resource occupied by the first downlink data channel in the signal.
  • the at least one post-scheduling indication information includes a first one corresponding to the first pre-scheduling indication information Scheduling indication information, where the first post-scheduling indication information is used to indicate time domain resources and/or frequency domain resources occupied by the first downlink data channel in the downlink signal sent by the sending module 510 in the first time period.
  • the first time period is a time period in which the downlink signal is sent from the sending module 510 to the sending module 510, and the first post scheduling indication information is further used to indicate the The first downlink data channel is transmitted.
  • the first post scheduling indication information includes N occupation indication information, and the N occupation indication information is in one-to-one correspondence with the N time domain units occupied by the downlink signal sent by the sending module 510, and each occupied The indication information is used to indicate whether the corresponding time domain unit is used to transmit the first downlink data channel.
  • the first post-scheduling indication information includes N*q occupation indication information, and the N*q occupation indication information and the N time domain units and q occupied by the downlink signal sent by the sending module 510.
  • the N*q time-frequency resource units composed of the frequency domain units are in one-to-one correspondence, and each occupation indication information is used to indicate whether the corresponding time domain unit is used to transmit the first downlink data channel.
  • the first pre-scheduling indication information is further used to instruct the terminal device to monitor an initial monitoring location of the first post-scheduling indication information.
  • the jth post scheduling indication information in the at least one post scheduling indication information is located at a preset position of the j+1th time domain scheduling unit occupied by the downlink signal received by the terminal device, where The jth post-scheduling indication information is used by the terminal device to determine a time domain resource and/or a frequency domain resource occupied by the first downlink data channel in the downlink signal received in the jth time domain scheduling unit, Where j ⁇ 1.
  • the jth post scheduling indication information in the at least one post scheduling indication information is located at a preset position of the jth time domain scheduling unit occupied by the downlink signal received by the terminal device, where the The post scheduling information is used by the terminal device to determine the time domain resource and/or the frequency domain resource occupied by the first downlink data channel in the downlink signal received by the jth time domain scheduling unit, where J ⁇ 1.
  • the at least one post-scheduling indication information includes first post-scheduling indication information corresponding to the first pre-scheduling indication information, where the first post-scheduling indication information is used to indicate the first downlink data channel The transfer is complete.
  • the first post scheduling indication information is last post scheduling indication information in the at least one post scheduling indication information.
  • the first pre-schedule indication information is used to indicate a size of a time domain resource allocated by the processing module included in the network device to the first downlink data channel, where the terminal device is configured according to the Determining the first time of the size of the time domain resource indicated by the first pre-scheduled indication information and the size of the time domain resource occupied by the first downlink data channel determined by the terminal device according to the at least one post-scheduling indication information Whether the downlink data channel is transmitted.
  • the jth post scheduling indication information includes M occupation indication information, where the M occupation indication information is in one-to-one correspondence with the M time domain units included in the jth time domain scheduling unit, and each The occupancy indication information is used to indicate whether the corresponding time domain unit is used to transmit the first downlink data channel.
  • the jth post scheduling indication information includes M*q occupation indication information, and the M*q occupation indication information and the M time domain units included in the jth time domain scheduling unit
  • the M*q time-frequency resource units composed of the q frequency domain units are in one-to-one correspondence, and each occupation indication information is used to indicate whether the corresponding time domain unit is used to transmit the first downlink data channel.
  • the downlink signal further includes second pre-scheduling indication information, where the second pre-scheduling indication information is used to indicate that the terminal device receives the second downlink data channel.
  • the at least one post-scheduling indication information is used by the terminal device to determine that the downlink data transmission completion post-scheduling indication information is used to instruct the terminal device to send the hybrid automatic retransmission request HARQ time domain resource.
  • the terminal device network device 500 herein is embodied in the form of a functional module.
  • module may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor for executing one or more software or firmware programs (eg, a shared processor, a proprietary processor, or a group). Processors, etc.) and memory, merge logic, and/or other suitable components that support the described functionality.
  • ASIC application specific integrated circuit
  • the network device 500 may be specifically the network device of the foregoing embodiment, and the network device 500 may be used to perform various processes and/or steps corresponding to the terminal device in the foregoing method embodiments. To avoid repetition, we will not repeat them here.
  • FIG. 9 is a schematic block diagram of another example of a network device according to an embodiment of the present invention. As shown in FIG. 9, the network device 600 includes:
  • the transceiver 610, the memory 620, and the processor 630 optionally, the terminal device 600 further includes a bus system 640 interconnecting the processor 630, the memory 620, and the transceiver 610, the memory 620 for storing instructions, the processing
  • the controller 630 is configured to execute the instructions stored by the memory 620 to the controller transceiver 610:
  • the terminal device Sending, by the terminal device, the first pre-scheduling indication information, where the first pre-scheduling indication information is used to indicate that the terminal device receives the first downlink data channel;
  • the downlink signal includes the first downlink data channel and at least one post-scheduling indication information, where the at least one post-scheduling indication information is used by the terminal device to determine the received downlink
  • the time domain resource occupied by the first downlink data channel in the signal For a detailed description of the processor 630 and the transceiver 610, refer to the related description of the function module above, and details are not described herein for brevity.
  • the network device 600 may be specifically the network device in the foregoing embodiment, and may be used to perform various steps and/or processes corresponding to the network device in the foregoing method embodiment.
  • the memory 620 can include read only memory and random access memory and provides instructions and data to the processor. A portion of the memory may also include a non-volatile random access memory.
  • the memory can also store information of the device type.
  • the processor 630 can be configured to execute instructions stored in the memory, and when the processor executes the instructions, the processor 630 can perform various steps corresponding to the network device in the above method embodiments.
  • the processor may be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and an NP.
  • the processor may further include a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof.
  • the PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL), or any combination thereof. .
  • the transceiver enables communication between the mobile terminal device and other devices or communication networks.
  • the memory can include read only memory and random access memory and provides instructions and data to the processor.
  • a portion of the processor may also include a non-volatile random access memory.
  • the processor can also store information about the type of device.
  • the bus system may include a power bus, a control bus, and a status signal bus in addition to the data bus.
  • a power bus may include a power bus, a control bus, and a status signal bus in addition to the data bus.
  • a control bus may include a control bus, and a status signal bus in addition to the data bus.
  • a status signal bus in addition to the data bus.
  • only one thick line is used to indicate the bus system, but it does not mean that there is only one bus or one type of bus.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
  • the term "and/or” herein is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately while 10 is stored in A. And B, there are three cases of B alone.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • 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, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des modes de réalisation de la présente invention concernent un procédé de planification de ressources de liaison descendante, un dispositif terminal et un dispositif réseau, permettant de réaliser une distribution de ressources dynamique, ce qui permet d'améliorer la flexibilité de distribution des ressources. Le procédé comprend les étapes suivantes : un dispositif terminal reçoit des premières informations d'instruction de planification frontale envoyées par un dispositif réseau, les premières informations d'instruction de planification frontale servant à ordonner au dispositif terminal de recevoir un premier canal de données de liaison descendante; le dispositif terminal reçoit, selon les premières informations d'instruction de planification frontale, un signal de liaison descendante envoyé par le dispositif réseau, le signal de liaison descendante envoyé par le dispositif réseau comprenant le premier canal de données de liaison descendante; le dispositif terminal surveille une ou plusieurs informations d'instruction de planification de rétroaction dans le signal de liaison descendante envoyé par le dispositif réseau, la ou les informations d'instruction de planification de rétroaction étant utilisée pour le dispositif terminal afin de déterminer des ressources occupées par le premier canal de données de liaison descendante dans le signal de liaison descendante.
PCT/CN2017/104075 2016-09-30 2017-09-28 Procédé de planification de ressources de liaison descendante, dispositif terminal et dispositif réseau WO2018059511A1 (fr)

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EP17854961.4A EP3506700B1 (fr) 2016-09-30 2017-09-28 Procédé de planification de ressources de liaison descendante, dispositif terminal et dispositif réseau
US16/369,291 US20190230694A1 (en) 2016-09-30 2019-03-29 Downlink Resource Scheduling Method, Terminal Device, and Network Device

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CN201610878968.3 2016-09-30
CN201611118002.6 2016-12-07
CN201611118002.6A CN107889268A (zh) 2016-09-30 2016-12-07 下行调度资源的方法、终端设备和网络设备

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