WO2020143802A1 - Procédé et appareil de communication - Google Patents

Procédé et appareil de communication Download PDF

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Publication number
WO2020143802A1
WO2020143802A1 PCT/CN2020/071528 CN2020071528W WO2020143802A1 WO 2020143802 A1 WO2020143802 A1 WO 2020143802A1 CN 2020071528 W CN2020071528 W CN 2020071528W WO 2020143802 A1 WO2020143802 A1 WO 2020143802A1
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Prior art keywords
dci
size
terminal device
network device
format
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PCT/CN2020/071528
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English (en)
Chinese (zh)
Inventor
肖洁华
唐浩
王婷
唐臻飞
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华为技术有限公司
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Publication of WO2020143802A1 publication Critical patent/WO2020143802A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • This application relates to the field of communication technology, and in particular, to a communication method and device.
  • the network device can allocate sidelink communication resources to the terminal device, and the downlink control information (down control information (DCI) Link communication resources are indicated to the terminal device.
  • the terminal device can utilize the side link communication resources allocated by the network device to perform side link communication. In this way, it is possible to avoid resource conflicts when multiple terminals separately perform SL communication, and at the same time, it is possible to efficiently use air interface resources. How to allocate sidelink resources without increasing the processing complexity of the terminal equipment is a current research hotspot.
  • the present application provides a communication method and device, which can reduce the number of blind inspections of terminal equipment and reduce the processing complexity of terminal equipment.
  • a communication method which includes: when a network device configures a first terminal device to monitor first downlink control information DCI, the network device aligns the size of the second DCI with the size of the first DCI, The first DCI is used for scheduling uplink data, and the second DCI is used for sidelink resource allocation; the network device sends the second DCI.
  • the size of the second DCI is aligned with the size of the first DCI, and the blind detection of the first terminal device may be performed only once at each PDCCH candidate position.
  • the first terminal device needs to perform at least two blind inspections, which can reduce the number of blind inspections of the terminal device and reduce the processing complexity of the terminal device degree.
  • the method further includes: when the network device configures the first terminal device to monitor a third DCI, or when the network device configures the first terminal device to not monitor the During the first DCI, the network device aligns the size of the second DCI with the size of the third DCI, and the third DCI is used to schedule downlink data.
  • the network device configures the first terminal device to monitor the first DCI, then the size of the second DCI is aligned with the size of the first DCI, otherwise the size of the second DCI and the size of the third DCI Align.
  • the network device configures and monitors the first DCI and the third DCI for the first terminal device at least.
  • the size of the second DCI is aligned with the size of the first DCI, or the size of the second DCI is aligned with the size of the third DCI. Therefore, after the introduction of DCI for SL resource allocation, the number of blind detections of the terminal device remains unchanged at each PDCCH candidate position. Compared with additionally configuring a new size for the second DCI, the number of blind inspections can be reduced, and the processing complexity of the terminal device can be reduced.
  • the network device aligning the size of the second DCI with the size of the first DCI includes: when the network device configures the first terminal device to monitor the total number of different sizes of the DCI is less than Or equal to a first number, the network device aligns the size of the second DCI with the first size, the first size is when the network device configures the first terminal to be in the first search space monitoring station
  • the first DCI, the size of the first DCI, the first search space is a search space serving the first terminal device; or,
  • the network device configures the first terminal device to monitor the total number of different sizes of DCI greater than the first number
  • the network device aligns the size of the second DCI with a second size, the second size
  • the network device configures the first terminal device to monitor the first DCI in a second search space
  • the size of the first DCI, and the second search space is a user serving the cell where the first terminal device is located Search space.
  • the size of the same DCI is different for different search spaces.
  • the size of the first DCI is the first size
  • the size of the first DCI is the second size
  • the first size may be larger than the second size.
  • the size of the second DCI is aligned with the first size.
  • the size of the second DCI may be aligned with the second size. According to the situation of different search spaces, the size of the second DCI is flexibly adjusted to avoid a large processing burden on the first terminal device.
  • the network device aligning the size of the second DCI with the size of the third DCI includes: when the network device configures the first terminal device to monitor When the number is less than or equal to the first number, the network device aligns the size of the second DCI with a third size, where the third size is when the network device configures the first terminal to be in the first search space When monitoring the third DCI, the size of the third DCI, the first search space is a search space serving the first terminal device; or,
  • the network device configures the first terminal device to monitor the total number of different sizes of DCI greater than the first number
  • the network device aligns the size of the second DCI with a fourth size, the fourth size
  • the network device configures the first terminal device to monitor the third DCI in a second search space
  • the size of the third DCI, and the second search space serves the cell of the first terminal device Search space.
  • the first DCI includes a first DCI in a first format and/or a first DCI in a second format;
  • Aligning the size of the second DCI with the size of the first DCI by the network device includes: when the network device configures the first terminal device to monitor the first DCI in the first format, the The network device aligns the size of the second DCI with a fifth size, where the fifth size is the size of the first DCI in the first format; or,
  • the network device When the network device configures the first terminal device to monitor the first DCI in the second format, the network device aligns the size of the second DCI with a sixth size, and the sixth size is the The size of the first DCI in the second format; or,
  • the network device configures the first terminal device to monitor the first DCI in the first format and the first DCI in the second format
  • the network device compares the size of the second DCI with the first The fifth size or the sixth size is aligned.
  • the third DCI includes a third DCI in a first format and/or a third DCI in a second format; the network device compares the size of the second DCI with the third DCI
  • the size alignment includes: when the network device configures the first terminal device to monitor the third DCI in the first format, the network device aligns the size of the second DCI with the seventh size, the The seventh size is the size of the third DCI in the first format; or,
  • the network device configures the first terminal device to monitor the third DCI in the second format
  • the network device aligns the size of the first DCI with the eighth size, and the eighth size is the second The third DCI size of the format; or,
  • the network device configures the first terminal device to monitor the third DCI in the first format and the third DCI in the second format
  • the network device compares the size of the first DCI with the first Seven dimensions or the eighth dimension are aligned.
  • the size of the DCI will also be different.
  • the second DCI is aligned with the DCI of different formats and processed Flexible to avoid increasing the complexity of terminal equipment processing.
  • the network device aligns the size of the second DCI with the size of the first DCI, including: the network device will temporarily scramble the size of the second DCI by the wireless network, and The dimensions of the first DCI are aligned.
  • the network device aligns the size of the second DCI with the size of the third DCI, including: the network device will temporarily scramble the size of the second DCI by the wireless network, and The dimensions of the third DCI are aligned.
  • the DCIs scrambled by different RNTIs are aligned to the size of the first DCI or the third DCI, which avoids the same DCI using different RNTI scrambling
  • the problem of different sizes reduces the complexity of terminal equipment processing.
  • a communication method including: a first terminal device receives second downlink control information DCI, and the second DCI is used for sidelink resource allocation; when the network device configures the first terminal device to monitor In the first DCI, the first terminal device aligns the size of the second DCI with the size of the first DCI, and the first DCI is used for scheduling uplink data.
  • the method further includes: when the network device configures the first terminal device to monitor a third DCI, or when the network device configures the first terminal device to not monitor the In the first DCI, the first terminal device aligns the size of the second DCI with the size of the third DCI, and the third DCI is used to schedule downlink data.
  • the first terminal device aligning the size of the second DCI with the size of the first DCI includes: when the network device configures the first terminal device to monitor When the number is less than or equal to the first number, the first terminal device aligns the size of the second DCI with the first size, where the first size is when the network device configures the first terminal device in the first When the search space monitors the first DCI, the size of the first DCI, the first search space is a search space serving the first terminal device; or,
  • the first terminal device When the network device configures the first terminal device to monitor the total number of different sizes of DCI greater than the first number, the first terminal device aligns the size of the second DCI with the third size, the first The three sizes are the size of the first DCI when the network device configures the first terminal device to monitor the first DCI in a second search space, and the second search space serves the first terminal The search space of the device cell.
  • the first terminal device aligning the size of the second DCI with the size of the third DCI includes: when the network device configures the first terminal device to monitor different sizes of DCI When the total number is less than or equal to the first number, the first terminal device aligns the size of the second DCI with a third size, where the third size is when the network device configures the first terminal When the first search space monitors the third DCI, the size of the third DCI, the first search space is a search space serving the first terminal device; or,
  • the first terminal device aligns the size of the second DCI with the fourth size, the first The fourth size is the size of the third DCI when the network device configures the first terminal device to monitor the third DCI in a second search space, and the second search space serves the first terminal The search space of the device cell.
  • the first DCI includes a first DCI in a first format and/or a first DCI in a second format;
  • the first terminal device aligning the size of the second DCI with the size of the first DCI includes: when the network device configures the first terminal device to monitor the first DCI in the first format, The first terminal device aligns the size of the second DCI with a fifth size, where the fifth size is the size of the first DCI in the first format; or,
  • the first terminal device When the network device configures the first terminal device to monitor the first DCI in the second format, the first terminal device aligns the size of the second DCI with a sixth size, and the sixth size is The size of the first DCI in the second format; or, when the network device configures the first terminal device to monitor the first DCI in the first format and the first DCI in the second format, the The first terminal device aligns the size of the second DCI with the fifth size or the sixth size.
  • the third DCI includes a third DCI in a first format and/or a third DCI in a second format; the first terminal device compares the size of the second DCI with the third DCI
  • the size alignment includes: when the network device configures the first terminal device to monitor the third DCI in the first format, the first terminal device aligns the size of the second DCI with the seventh size, The seventh size is the size of the third DCI in the first format; or, when the network device configures the first terminal device to monitor the third DCI in the second format, the first terminal device Align the size of the second DCI with an eighth size, which is the third DCI size of the second format; or, when the network device configures the first terminal device to monitor the first When the third DCI in the format and the third DCI in the second format, the first terminal device aligns the size of the second DCI with the seventh size or the eighth size.
  • the first terminal device aligns the size of the second DCI with the size of the first DCI, including: the first terminal device will be scrambled by the wireless network temporary identifier RNTI The size of the DCI is aligned with the size of the first DCI.
  • the first terminal device aligns the second DCI with the size of the third DCI, including: the first terminal device temporarily scrambles the wireless network to the size of the second DCI, Align with the size of the third DCI.
  • a communication device may be a network device, a device in a network device, or a device that can be matched with a network device.
  • the device may include a processing module and a transceiver module, and the transceiver module And the processing module can perform the corresponding functions in any of the design examples of the first aspect, specifically:
  • the processing module is configured to align the size of the second DCI with the size of the first DCI when the network device configures the first terminal device to monitor the first downlink control information DCI, and the first DCI is used to schedule the uplink Data, the second DCI is used for sidelink resource allocation;
  • the transceiver module is used to send the second DCI.
  • the processing module is further configured to: when the network device configures the first terminal device to monitor the third DCI, or when the network device configures the first terminal When the device does not monitor the first DCI, the size of the second DCI is aligned with the size of the third DCI, and the third DCI is used for scheduling downlink data.
  • the processing module aligns the size of the second DCI with the size of the first DCI, it is specifically used to: when the network device configures the first terminal device to monitor different sizes of the DCI When the total number is less than or equal to the first number, align the size of the second DCI with the first size, where the first size is when the network device configures the first terminal to be in the first search space for monitoring When the first DCI is mentioned, the size of the first DCI, the first search space is a search space serving the first terminal device; or, when the network device configures the first terminal device to monitor the DCI is different When the total number of sizes is greater than the first number, the size of the second DCI is aligned with the second size, where the second size is when the network device configures the first terminal device to monitor in the second search space In the case of the first DCI, the size of the first DCI and the second search space are search spaces serving users of the cell where the first terminal device is located.
  • the processing module aligns the size of the second DCI with the size of the third DCI, it is specifically used to: when the network device configures the first terminal device to monitor the DCI When the total number of different sizes is less than or equal to the first number, the size of the second DCI is aligned with the third size, where the third size is when the network device configures the first terminal to be in the first search space
  • the first search space is a search space serving the first terminal device; or, when the network device configures the first terminal device to monitor When the total number of DCI different sizes is greater than the first number, the size of the second DCI is aligned with the fourth size, where the fourth size is when the network device configures the first terminal device to search in the second
  • the second search space is a search space serving the cell of the first terminal device.
  • the first DCI includes a first DCI in a first format and/or a first DCI in a second format; the processing module compares the size of the second DCI with the first DCI
  • the DCI size alignment is specifically used to: when the network device configures the first terminal device to monitor the first DCI in the first format, align the size of the second DCI with the fifth size, the The fifth size is the size of the first DCI in the first format; or, when the network device configures the first terminal device to monitor the first DCI in the second format, the size of the second DCI Aligned with a sixth size, which is the size of the first DCI in the second format; or, when the network device configures the first terminal device to monitor the first DCI in the first format and all When describing the first DCI in the second format, the size of the second DCI is aligned with the fifth size or the sixth size.
  • the third DCI includes a third DCI in a first format and/or a third DCI in a second format; the processing module compares the size of the second DCI with the third DCI
  • the DCI size alignment is specifically used to: when the network device configures the first terminal device to monitor the third DCI in the first format, align the size of the second DCI with the seventh size, the The seventh size is the size of the third DCI in the first format; or, when the network device configures the first terminal device to monitor the third DCI in the second format, the size of the first DCI is Eight-size alignment, the eighth size is the third DCI size of the second format; or, when the network device configures the first terminal device to monitor the third DCI of the first format and the second When formatting the third DCI, the size of the first DCI is aligned with the seventh size or the eighth size.
  • the processing module aligns the size of the second DCI with the size of the first DCI, it is specifically used to: the size of the second DCI scrambled by the wireless network temporary identification, and The dimensions of the first DCI are aligned.
  • the processing module aligns the size of the second DCI with the size of the third DCI, it is specifically used to: the size of the second DCI scrambled by the wireless network temporary identification, and The dimensions of the third DCI are aligned.
  • a communication device may be a terminal device, a device in the terminal device, or a device that can be matched with the terminal device.
  • the device may include a transceiver module and a processing module, and the transceiver module The and processing module can perform the corresponding function in any of the design examples in the second aspect, specifically:
  • a transceiver module configured to receive second downlink control information DCI, where the second DCI is used for sidelink resource allocation;
  • a processing module configured to align the size of the second DCI with the size of the first DCI when the network device configures the first terminal device to monitor the first DCI, and the first DCI is used for scheduling uplink data.
  • the processing module is further configured to: when the network device configures the first terminal device to monitor the third DCI, or when the network device configures the first terminal device to not monitor the In the first DCI, the size of the second DCI is aligned with the size of the third DCI, and the third DCI is used for scheduling downlink data.
  • the processing module aligns the size of the second DCI with the size of the first DCI, it is specifically used to: when the network device configures the first terminal device to monitor different sizes of the DCI When the total number is less than or equal to the first number, align the size of the second DCI with the first size, where the first size is when the network device configures the first terminal device to monitor in the first search space
  • the first search space is a search space serving the first terminal device; or, when the network device configures the first terminal device to monitor the DCI is different
  • the size of the second DCI is aligned with a third size, where the third size is when the network device configures the first terminal device to monitor in the second search space
  • the size of the first DCI, and the second search space are search spaces serving the cell of the first terminal device.
  • the processing module aligns the size of the second DCI with the size of the third DCI, it is specifically used to:
  • the third size is when the When the network device configures the first terminal to monitor the third DCI in a first search space, the size of the third DCI, and the first search space is a search space serving the first terminal device; or , When the network device configures the first terminal device to monitor the total number of different sizes of DCI greater than the first number, align the size of the second DCI with a fourth size, the fourth size is When the network device configures the first terminal device to monitor the third DCI in a second search space, the size of the third DCI, and the second search space is a search space serving the cell of the first terminal device .
  • the first DCI includes a first DCI in a first format and/or a first DCI in a second format; the processing module compares the size of the second DCI with the first DCI When the size of DCI is aligned, it is specifically used for:
  • the size of the second DCI is aligned with a fifth size
  • the fifth size is the first format The size of the first DCI
  • the size of the second DCI is aligned with the sixth size
  • the sixth The size is the size of the first DCI in the second format; or, when the network device configures the first terminal device to monitor the first DCI in the first format and the first DCI in the second format, Align the size of the second DCI with the fifth size or the sixth size.
  • the third DCI includes a third DCI in a first format and/or a third DCI in a second format; the processing module compares the size of the second DCI with the third DCI When the sizes are aligned, it is specifically used to: when the network device configures the first terminal device to monitor the third DCI in the first format, align the size of the second DCI with the seventh size, the seventh The size is the size of the third DCI in the first format; or, when the network device configures the first terminal device to monitor the third DCI in the second format, the size of the second DCI is Eight-size alignment, the eighth size is the third DCI size of the second format; or, when the network device configures the first terminal device to monitor the third DCI of the first format and the second When formatting the third DCI, the size of the second DCI is aligned with the seventh size or the eighth size.
  • the processing module aligns the size of the second DCI with the size of the first DCI, it is specifically used to: the size of the second DCI scrambled by the wireless network temporary identification RNTI, Align with the size of the first DCI.
  • the processing module aligns the size of the second DCI and the third DCI, it is specifically used to: the size of the second DCI scrambled by the wireless network temporary identification, and the The size of the third DCI is aligned.
  • a communication device in a fifth aspect, includes a processor for implementing the method described in the first aspect above.
  • the device may also include a memory for storing instructions and data.
  • the memory is coupled to the processor.
  • the processor executes the program instructions stored in the memory, the method described in the first aspect may be implemented.
  • the apparatus may further include a communication interface, which is used for the apparatus to communicate with other devices.
  • the communication interface may be a transceiver, a circuit, a bus, a module, or other types of communication interfaces.
  • Other devices may be The first terminal equipment, etc.
  • the device includes:
  • Memory used to store program instructions
  • a processor configured to align the size of the second DCI with the size of the first DCI when the network device configures the first terminal device to monitor the first downlink control information DCI, the first DCI is used to schedule uplink data, The second DCI is used for side link resource allocation;
  • the communication interface is used to send the second DCI.
  • the processor is further used when the network device configures the first terminal device to monitor the third DCI, or when the network device configures the first terminal device to not monitor the first DCI In DCI, the size of the second DCI is aligned with the size of the third DCI, and the third DCI is used for scheduling downlink data.
  • the processor aligns the size of the second DCI with the size of the first DCI
  • it is specifically used when the network device configures the first terminal device to monitor different sizes of the DCI
  • align the size of the second DCI with the first size where the first size is when the network device configures the first terminal to be in the first search space for monitoring
  • the size of the first DCI the first search space is a search space serving the first terminal device; or, when the network device configures the first terminal device to monitor the DCI is different
  • the size of the second DCI is aligned with the second size, where the second size is when the network device configures the first terminal device to monitor in the second search space
  • the size of the first DCI and the second search space are search spaces serving users of the cell where the first terminal device is located.
  • the processor aligns the size of the second DCI with the size of the third DCI, it is specifically used to: when the network device configures the first terminal device to monitor the DCI When the total number of different sizes is less than or equal to the first number, the size of the second DCI is aligned with the third size, where the third size is when the network device configures the first terminal to be in the first search space
  • the first search space is a search space serving the first terminal device; or, when the network device configures the first terminal device to monitor When the total number of DCI different sizes is greater than the first number, the size of the second DCI is aligned with the fourth size, where the fourth size is when the network device configures the first terminal device to search in the second
  • the second search space is a search space serving the cell of the first terminal device.
  • the first DCI includes a first DCI in a first format and/or a first DCI in a second format; the processor compares the size of the second DCI with the first DCI When the size of DCI is aligned, it is specifically used for:
  • the size of the second DCI is aligned with a fifth size
  • the fifth size is the first format The size of the first DCI
  • the size of the second DCI is aligned with the sixth size
  • the sixth The size is the size of the first DCI in the second format; or, when the network device configures the first terminal device to monitor the first DCI in the first format and the first DCI in the second format, Align the size of the second DCI with the fifth size or the sixth size.
  • the third DCI includes a third DCI in a first format and/or a third DCI in a second format; the processor is comparing the size of the second DCI with the third DCI
  • the processor is comparing the size of the second DCI with the third DCI
  • it is specifically used to: when the network device configures the first terminal device to monitor the third DCI in the first format, align the size of the second DCI with the seventh size, the seventh The size is the size of the third DCI in the first format; or, when the network device configures the first terminal device to monitor the third DCI in the second format, the size of the first DCI and the eighth size Aligned, the eighth size is the third DCI size of the second format; or, when the network device configures the first terminal device to monitor the third DCI of the first format and the second format In the third DCI, the size of the first DCI is aligned with the seventh size or the eighth size.
  • the processor aligns the size of the second DCI with the size of the first DCI, it is specifically used to: the size of the second DCI scrambled by the wireless network temporary identification, and The dimensions of the first DCI are aligned.
  • the processor aligns the size of the second DCI with the size of the third DCI, it is specifically used to: the size of the second DCI scrambled by the wireless network temporary identification, and The dimensions of the third DCI are aligned.
  • a communication device includes a processor for implementing the method described in the second aspect above.
  • the device may also include a memory for storing instructions and data.
  • the memory is coupled to the processor, and when the processor executes the program instructions stored in the memory, the method described in the second aspect may be implemented.
  • the apparatus may further include a communication interface, which is used for the apparatus to communicate with other devices.
  • the communication interface may be a transceiver, a circuit, a bus, a module, or other types of communication interfaces.
  • Other devices may be Network equipment, etc.
  • the device includes:
  • Memory used to store program instructions
  • a processor configured to align the size of the second DCI with the size of the first DCI when the network device configures the first terminal device to monitor the first DCI, and the first DCI is used for scheduling uplink data.
  • the communication interface is used to receive second downlink control information DCI, and the second DCI is used for sidelink resource allocation;
  • the processor is further configured to: when the network device configures the first terminal device to monitor a third DCI, or when the network device configures the first terminal device to not monitor During the first DCI, the size of the second DCI is aligned with the size of the third DCI, and the third DCI is used for scheduling downlink data.
  • the processor aligns the size of the second DCI with the size of the first DCI
  • it is specifically used when the network device configures the first terminal device to monitor different sizes of the DCI
  • align the size of the second DCI with the first size where the first size is when the network device configures the first terminal device to monitor in the first search space
  • the first search space is a search space serving the first terminal device; or, when the network device configures the first terminal device to monitor the DCI is different
  • the size of the second DCI is aligned with a third size, where the third size is when the network device configures the first terminal device to monitor in the second search space
  • the size of the first DCI, and the second search space are search spaces serving the cell of the first terminal device.
  • the processor aligns the size of the second DCI with the size of the third DCI, it is specifically used to: when the network device configures the first terminal device to monitor the DCI When the total number of different sizes is less than or equal to the first number, the size of the second DCI is aligned with the third size, where the third size is when the network device configures the first terminal to be in the first search space
  • the first search space is a search space serving the first terminal device; or, when the network device configures the first terminal device to monitor When the total number of DCI different sizes is greater than the first number, the size of the second DCI is aligned with the fourth size, where the fourth size is when the network device configures the first terminal device to search in the second
  • the second search space is a search space serving the cell of the first terminal device.
  • the first DCI includes a first DCI in a first format and/or a first DCI in a second format; the processor compares the size of the second DCI with the first DCI
  • the DCI size alignment is specifically used to: when the network device configures the first terminal device to monitor the first DCI in the first format, align the size of the second DCI with the fifth size, the The fifth size is the size of the first DCI in the first format; or, when the network device configures the first terminal device to monitor the first DCI in the second format, the size of the second DCI Aligned with a sixth size, which is the size of the first DCI in the second format; or, when the network device configures the first terminal device to monitor the first DCI in the first format and all When describing the first DCI in the second format, the size of the second DCI is aligned with the fifth size or the sixth size.
  • the third DCI includes a third DCI in a first format and/or a third DCI in a second format; the processor compares the size of the second DCI with the third DCI When the sizes are aligned, it is specifically used to: when the network device configures the first terminal device to monitor the third DCI in the first format, align the size of the second DCI with the seventh size, the seventh The size is the size of the third DCI in the first format; or, when the network device configures the first terminal device to monitor the third DCI in the second format, the size of the second DCI is Eight-size alignment, the eighth size is the third DCI size of the second format; or, when the network device configures the first terminal device to monitor the third DCI of the first format and the second When formatting the third DCI, the size of the second DCI is aligned with the seventh size or the eighth size.
  • the processor aligns the size of the second DCI with the size of the first DCI, it is specifically used to: the size of the second DCI scrambled by the wireless network temporary identification RNTI, Align with the size of the first DCI.
  • the processor aligns the size of the second DCI with the third DCI, it is specifically used to: the size of the second DCI scrambled by the wireless network temporary identification, and the The size of the third DCI is aligned.
  • an embodiment of the present application further provides a computer-readable storage medium, including instructions, which, when run on a computer, cause the computer to execute any method of the first aspect or the second aspect of the possible design.
  • an embodiment of the present application further provides a chip system.
  • the chip system includes a processor, and may further include a memory, for implementing the method of the first aspect or the second aspect.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • an embodiment of the present application further provides a computer program product, including instructions, which, when run on a computer, cause the computer to execute the method of the first aspect or the second aspect.
  • an embodiment of the present application provides a system including the device according to the third aspect and the device according to the fourth aspect, or the system includes the device according to the fifth aspect and the sixth aspect ⁇ The device.
  • FIG. 1 is a schematic diagram of a communication system provided by an embodiment of this application.
  • FIG. 3 is a flowchart of a communication method provided by an embodiment of this application.
  • FIG. 5 is an example diagram of a DCI configuration provided by an embodiment of this application.
  • FIG. 6 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 7 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 1 shows one of the communication systems 100 applied in the embodiments of the present application.
  • the communication system 100 may include at least one network device 110.
  • the network device 110 may be a device that communicates with a terminal device, such as a base station or a base station controller.
  • Each network device 110 can provide communication coverage for a specific geographic area, and can communicate with terminal devices located within the coverage area (cell).
  • the network device 110 may be a global mobile communications (global system for mobile communications, GSM) system or a base station (base transceiver) (BTS) in code division multiple access (CDMA), or it may be a broadband code division multiple Address (wideband code division multiple access (WCDMA) system base station (nodeB, NB), it can also be an evolved base station (evolved NodeB, eNB or eNodeB) in the LTE system, or a cloud wireless access network (cloud radio) wireless controller in the scenario of access network (CRAN), or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, and a network device in a future 5G network, for example, in new radio (NR)
  • the base station (gNodeB or gNB) or transmission point (transmission receiving/transmission reception point, TRP), or the network device 110 may also be a network device in a public land mobile network (PLMN) that evolves in the future, etc
  • the communication system 100 also includes one or more terminal devices 120 located within the coverage of the network device 110.
  • the terminal device 120 may be mobile or fixed.
  • the terminal device 120 may refer to an access terminal, user equipment (UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user Agent or user device.
  • UE user equipment
  • Access terminals can be cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital processing (personal digital assistant (PDA), wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks or terminals in future evolved public land mobile networks (PLMN)
  • PLMN public land mobile networks
  • the network device 110 and the terminal device 120 can perform data transmission through air interface resources, and the air interface resources can include at least one of time domain resources, frequency domain resources, and code domain resources.
  • the network device 110 may send control information to the terminal device 120 through a control channel, such as a physical downlink control channel (physical downlink control channel, PDCCH), thereby providing the terminal device 120 Allocate data channels, such as physical downlink shared channel (physical downlink shared channel, PDSCH) or physical uplink shared channel (physical uplink shared channel, PUSCH) resources.
  • a control channel such as a physical downlink control channel (physical downlink control channel, PDCCH)
  • Allocate data channels such as physical downlink shared channel (physical downlink shared channel, PDSCH) or physical uplink shared channel (physical uplink shared channel, PUSCH) resources.
  • the control information may indicate a symbol and/or resource block (RB) to which the data channel is mapped, and the network device 110 and the terminal device 120 perform data transmission through the data channel at the allocated time-frequency resource.
  • the above data transmission may include downlink data transmission and/or uplink data transmission.
  • Downlink data (such as data carried by the PDSCH) transmission may refer to the network device 110 sending data to the terminal device 120
  • uplink data such as data carried by the PUSCH
  • the data can be generalized data, such as user data, system information, broadcast information, or other information.
  • terminal devices 120 can also perform data transmission through sidelink resources. Similar to the air interface resources described above, sidelink resources can also include time domain resources, frequency domain resources, and code domain resources. At least one of them.
  • the physical channel through which the terminal device 120 performs data transmission may include a physical sidelink shared channel (physical sidelink shared channel, PSSCH), a physical sidelink control channel (physical sidelink control channel, PSCCH), or a physical sidelink feedback At least one of a channel (physical sidelink feedback channel, PSFCH), etc.
  • PSSCH is used to transmit data
  • PSCCH is used to transmit control information, such as scheduling assignment (SA) information
  • PSFCH is used to transmit feedback information, such as feedback information can include channel state information (channel state information (CSI), Acknowledgement (acknowledgement, ACK) or negative acknowledgment (negtive acknowledgement, NACK), etc.
  • SA scheduling assignment
  • feedback information can include channel state information (channel state information (CSI), Acknowledgement (acknowledgement, ACK) or negative acknowledgment (negtive acknowledgement, NACK), etc.
  • CSI channel state information
  • Acknowledgement acknowledgement
  • NACK negative acknowledgment
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and one network device may include other numbers of terminal devices within the coverage area.
  • This application is implemented Examples do not limit this.
  • the side-link communication in the embodiments of the present application may refer to the communication between one terminal device and another terminal device (such as unicast, etc.), or the side-link communication may refer to one terminal device and multiple terminals.
  • the communication between the two terminal devices (such as multicast and broadcast) is not limited in the embodiments of the present application.
  • “taking side link communication refers to communication between one terminal device and another terminal device” as an example for description.
  • a flow of side link communication is provided as shown in FIG. 2.
  • the network device in the flow may be specifically the network device 110 in FIG. 1, and the terminal device may be specifically shown in FIG. Terminal device 120, the process includes:
  • the network device allocates SL transmission resources to the first terminal device.
  • the network device sends downlink control information DCI to the first terminal device, where the DCI is used to instruct the network device to send information about the SL transmission resources allocated to the first terminal device.
  • the first terminal device determines the SL transmission resource according to the DCI.
  • the first terminal device sends the SL signal to the second terminal device on the SL transmission resource.
  • the first terminal device may send SL data (data) information on the physical sidelink shared channel PSSCH, or the first terminal device may send scheduling assignment (SA) information on the physical sidelink control channel PSCCH Wait.
  • SA scheduling assignment
  • the second terminal device may send an acknowledgement (ACK) or a negative acknowledgement (NACK) on the physical sidelink feedback channel PSFCH.
  • the second terminal device may also send channel state information (channel state information, CSI), etc. on the PSFCH.
  • the process shown in FIG. 2 above may be applied to the process in which the network device actively allocates SL transmission resources to the terminal device, or may be applied to the process in which the network device passively allocates SL transmission resources to the terminal device.
  • the process of passively allocating SL transmission resources to the terminal device may be: the terminal device sends an SL resource request to the network device, and after receiving the SL resource request, the network device allocates the SL transmission resource to the terminal device.
  • the process shown in FIG. 2 may further include: S200: The first terminal device sends an SL resource request to the network device.
  • the first terminal device in the embodiment of the present application may be a terminal within the coverage (IC) of the network device.
  • the process of receiving DCI by the first terminal device may include: the DCI is carried in the physical downlink control channel PDCCH for transmission.
  • the first terminal device can obtain a search space SS, which includes a candidate PDCCH set (PDCCH candidate), which refers to a series of time-frequency resource locations where a PDCCH may appear in a control resource set (control resource set, CORESET) .
  • the first terminal device may perform blind detection according to the DCI size at each PDCCH candidate position.
  • the network device may configure the first terminal device to monitor three types of DCI, namely the first DCI, the second DCI, and the third DCI.
  • the first DCI is used to schedule uplink data transmission
  • the second DCI is used to schedule sidelink resource allocation in FIG. 2
  • the third DCI is used to schedule downlink data transmission.
  • the size of the first DCI is size 0,
  • the size of the second DCI is size 1
  • the size of the third DCI is size 2, size 0, size 1 and size 2, which are different.
  • Candidate positions need to be detected or monitored according to size 0, size 1 and size 2, respectively, also known as blind detection of PDCCH.
  • the three DCI sizes need to be blind checked 3 times, and the terminal device has a higher processing complexity.
  • different DCI sizes affect the number of candidate PDCCHs that the UE needs to monitor, that is, in the above example, three sizes of DCI are counted as three candidate PDCCHs.
  • the size of the DCI used for SL resource allocation in FIG. 2 may be aligned with the size of the DCI used for uplink scheduling data. That is, the size of DCI used for SL resource allocation in FIG. 2 is set to be the same as the size of DCI used for uplink scheduling data. In this way, at each PDCCH candidate position, blind detection may be performed twice according to the size of the DCI size.
  • the network device configures the first terminal device to monitor three types of DCI, namely the first DCI, the second DCI, and the third DCI.
  • the first DCI is used to schedule uplink data transmission
  • the second DCI is used to schedule sidelink resource allocation in FIG. 2
  • the third DCI is used to schedule downlink data transmission
  • the size of the first DCI is size 0
  • the third The size of DCI is size 2. If the size of the second DCI is set to be aligned with the size of the first DCI at this time, the size of the second DCI is size 0.
  • the terminal device performs blind detection of the PDCCH according to size 0 and size 2. Two sizes of DCI require blind detection twice. Compared with the above three times of blind inspection, the processing complexity of the terminal device is reduced.
  • the network device is not configured with terminal device monitoring DCI for uplink data scheduling of the cell, and only terminal device configuration monitoring is used for DCI for downlink data scheduling in this cell.
  • the terminal device may perform blind detection once according to the size of the downlink scheduled DCI. After increasing the DCI for SL resource scheduling, if the scheme of aligning the DCI of the sidelink allocation in FIG. 2 with the size of the DCI for uplink scheduling is followed, at each PDCCH candidate position, the terminal device needs to monitor DCIs of two sizes.
  • the size of DCI for downlink scheduling and the size of DCI for uplink scheduling (monitoring the size of DCI for uplink scheduling, which is mainly used for DCI for blind detection of side link resource allocation). It can be seen that for the above scenario, the DCI size of the sidelink resource allocation is aligned with the size of the uplink scheduling DCI.
  • the terminal device blindly detects once at each PDCCH candidate position and increases the SL After the DCI for resource scheduling, the terminal device performs blind detection twice at each PDCCH candidate position, and the terminal device has a higher processing complexity.
  • DCI for scheduling downlink data may be referred to as DCI for scheduling downlink data
  • DCI for scheduling uplink data may be referred to as DCI for scheduling uplink data, which may be used for side chains.
  • the DCI for channel resource allocation is called DCI for side link resource allocation.
  • an embodiment of the present application provides a communication method, including: if the network device configures the terminal device to monitor the DCI for scheduling uplink data, align the size of the DCI of the sidelink resource allocation with the size of the DCI for scheduling uplink data, otherwise , Align the size of the DCI for the allocation of sidelink resources with the size of the DCI for scheduling downlink data. For example, if the network device configures the terminal device not to monitor DCI scheduling uplink data, and the network device configures the terminal device to monitor DCI scheduling downlink data, then the size of the DCI for the allocation of sidelink resources is aligned with the size of DCI scheduling downlink data.
  • the size of the DCI for the allocation of sidelink resources is aligned with the size of DCI scheduling the downlink data.
  • the network device configures the terminal device to monitor the DCI of the downlink data
  • the size of the DCI for the allocation of the sidelink resources is aligned with the size of the DCI for scheduling the downlink data.
  • the entire communication system supports at least three types of DCI, namely the first DCI, the second DCI, and the third DCI.
  • the first DCI is used for scheduling uplink data, and the size is size 0, the second DCI is used for sidelink resource allocation, and the third DCI is used for scheduling downlink data, and the size is size 2.
  • the network device configures the terminal device to monitor the first DCI, the size of the second DCI is aligned with the size of the first DCI, that is, the size of the second DCI is adjusted to size 0, otherwise, the size of the second DCI is adjusted to the size of the third DCI The size is aligned, that is, the size of the second DCI is adjusted to size 2.
  • the size of the second DCI and the size of the third DCI may be aligned, That is, the sizes of the third DCI and the second DCI are adjusted to size 2. Then, at each PDCCH candidate position, the terminal device only needs to perform blind detection according to size 2, only once. Compared with the above two blind inspection designs, the number of blind inspections can be reduced and the processing complexity of the terminal device can be reduced.
  • Side links may also be called side links or side links.
  • the side link is used for communication between the terminal device and the terminal device, including one-to-one side link communication and one-to-many side link communication.
  • one-to-one sidelink communication may include unicast
  • one-to-many sidelink communication includes broadcast and multicast.
  • broadcast may refer to communication with all terminal devices in a cell
  • multicast may refer to communication with terminals in a communication group, where the communication group includes one or more terminal devices.
  • the side link communication may include direct communication between two terminal devices, or may include side link communication forwarded by a relay node.
  • the physical channel for side-link communication may include at least one of the following:
  • the physical sidelink shared channel (physical sidelink shared channel, PSSCH) is used to carry sidelink data (SL data).
  • the physical sidelink control channel (physical sidelink control channel, PSCCH) is used to carry sidelink scheduling assignment (sidelink scheduling assignment, SL, SA), and the SL may also be called sidelink control information (sidelink control information, SCI).
  • PSCCH physical sidelink control channel
  • SA sidelink scheduling assignment
  • SCI sidelink control information
  • the physical sidelink feedback channel (physical sidelink feedback channel, PSFCH) is used to carry sidelink feedback control information.
  • the sidelink feedback information may include at least one of channel state information (channel state information (CSI), hybrid automatic repeat request (HARQ) information, etc.
  • the HARQ information may include an acknowledgement (acknowledgement, ACK) or a negative acknowledgement (negtive acknowledgement, NACK), etc.
  • Physical sidelink broadcast channel (physical sidelink broadcast channel, PSBCH), used to carry system and synchronization related information;
  • the physical sidelink discovery channel (physical sidelink discovery channel, PSDCH) is used to carry sidelink discovery messages.
  • DCI is information sent by a network device to a terminal device.
  • the network device may send DCI through a physical downlink control channel PDCCH.
  • DCI can be used to schedule uplink data transmission, or to schedule downlink data transmission, or to allocate sidelink resources.
  • the communication interface between the network device and the terminal device is a Uu interface, and uplink/downlink data transmission can be performed on the Uu interface.
  • the uplink data transmission refers to data transmission from the terminal device to the network device
  • the downlink data transmission refers to Data transmission from network equipment to terminal equipment.
  • the communication interface between the terminal device and the terminal device is a PC5 interface, and the side device can perform side link transmission through the PC 5 interface.
  • the side link resource allocation can be used to allocate side link transmission resources and/or side link reception resources.
  • the network device may send DCI to the terminal device on the transmitting side, where the DCI is used to allocate sideline transmission resources to the terminal device on the transmitting side.
  • Search space search space, SS
  • the set of candidate PDCCHs that the terminal equipment needs to monitor is called a search space.
  • a search space In the control resource set (control resource set, CORESET), a series of positions where PDCCH may appear is defined, and the PDCCH that may appear is called a candidate PDCCH (PDCCH candidate).
  • the candidate PDCCH that the terminal device needs to monitor is called a search space (search space).
  • the search space is divided into a common search space (common search space, CSS) and a UE-specific search space (UE-specific search space, USS). CSS is used to transmit control information related to paging, access at any time (RAdom Response, RA Response), broadcast control channel (broadcast control channel, BCCH).
  • the control information is mainly public information at the cell level.
  • USS is used to transmit control information related to downlink shared channel (downlink shared channel(s), DL-SCH) and uplink shared channel (uplink shared channel (s), UL-SCH), etc.
  • the control information is mainly UE level information .
  • BWP is a group of continuous RB resources on the carrier.
  • version 15 release 15
  • NR new radio access technology
  • 4 BWPs can be configured for uplink and downlink
  • time division duplexing time division, duplexing, TDD
  • 4 BWPs can be configured for uplink and downlink.
  • the BWP can be divided into an initial activation BWP (intital active BWP) and an activation BWP (active, BWP).
  • the initial activation of the BWP may refer to the BWP used for data reception or transmission before the terminal device receives the dedicated BWP configuration information, and is generally configured through a system message.
  • the initial activation BWP may refer to the BWP used to receive system messages.
  • the initial activation of BWP may refer to the BWP that sends the initial access signal and so on.
  • the initial activation of BWP may include initial activation of downlink BWP (initial downlink BWP) and initial activation of uplink BWP (initial uplink BWP).
  • Activating BWP refers to the BWP used for data reception or transmission after the terminal device receives the dedicated BWP configuration information, for example, the dedicated BWP configuration information may be RRC.
  • the dedicated BWP configuration information may be RRC.
  • a maximum of 4 BWPs can be configured on a serving cell (the 4 BWPs do not include the initial activated BWP).
  • the activated BWP may be called an activated BWP.
  • the bandwidth of the initially activated BWP is smaller than the bandwidth of the activated BWP.
  • DCI size can also be called DCI size, DCI size, etc.
  • the size of DCI refers to the number of bits contained in DCI.
  • the size of DCI may be related to the following factors:
  • the function of DCI The size of DCI for different functions may be different. For example, the sizes of DCI used for downlink data scheduling and DCI used for uplink data scheduling may be different.
  • DCI used for downlink data scheduling may include DCI format 1_0 (format1_0) and/or DCI format 1_1 (format1_1), etc.
  • DCI of format 1_0 is different from the DCI of format 1_1.
  • the size of DCI is also different.
  • the size of the DCI may be the first size
  • the terminal device is configured in a UE-specific search space (UES)
  • the size of the DCI may be a second size, and the first size is different from the second size.
  • USS can also be called UESS.
  • Radio network temporary identity When DCI uses different RNTIs for cyclic redundancy check (CRC) scrambling, the size of DCI may be different. For example, when the first DCI is scrambled by the first RNTI, the size of the first DCI may be the third size, and when the first DCI is scrambled by the second RNTI, the size of the first DCI may be the fourth size, the third The size is different from the fourth size. For example, for a DCI format with a general function, due to different subdivided scheduling types, the RNTI with different CRC scrambling will also result in different sizes of DCI.
  • CRC cyclic redundancy check
  • DCI used for downlink data scheduling can be divided into DCI used for downlink system message scheduling, DCI used for downlink paging message scheduling, DCI used for downlink dynamic data scheduling, and semi-static according to different scheduling types.
  • DCI for scheduling For DCI used for downlink system message scheduling, system message RNTI (System Information RNTI, SI-RNTI) can be used for scrambling, and for DCI used for downlink paging message scheduling, paging RNTI (Paging RNTI, P-RNTI) can be used. Scrambling.
  • SI-RNTI System Information RNTI
  • Paging RNTI Paging RNTI
  • DCI for downlink dynamic data scheduling can be scrambled using cell RNTI (Cell-RNTI, C-RNTI), and DCI for semi-static data scheduling can be configured using RNTI (Configured Scheduling RNTI, CS-RNTI:). Scrambling, etc., have different sizes of DCI scrambled for different RNTIs.
  • Frequency resource bandwidth such as the frequency bandwidth of different BWP, will also cause the difference in DCI size.
  • DCI size alignment can also be referred to as setting the same number of bits occupied by two DCIs.
  • DCI size alignment may refer to changing two DCI information with different DCI sizes into two DCI information with the same DCI size.
  • a method of adding redundant bits and DCI with a large number of information bits may be used for size alignment.
  • a method of intercepting some bits and DCI with a small number of information bits may be used for size alignment.
  • the network device in the flow may be the network device 110 in FIG. 1 described above, and the terminal device may be the terminal device 120 in FIG. 1 described above.
  • the function of the network device can also be realized by a chip applied to the network device, or supported by other devices, and the function of the terminal device can also be realized by the chip applied to the terminal device, or by other devices.
  • the process includes:
  • scheduling uplink data may also be described as scheduling PUSCH in a cell (scheduling of PUSCH in one cell).
  • the network device sends the second DCI.
  • the process shown in FIG. 3 may further include:
  • the first terminal device aligns the size of the second DCI with the size of the first DCI.
  • the first terminal device receives the second DCI.
  • S301 to S304 is not limited.
  • S301 may be located before S302 in sequence, and S301 may be located after S302 in sequence.
  • the network device may configure the first terminal device to monitor the first DCI in different search spaces, and when the first DCI is monitored in different search spaces, the size of the first DCI may be different.
  • the network device and/or the first terminal device may adopt the following example to align the size of the second DCI with the size of the first DCI.
  • the size of the second DCI is larger than the size of the first DCI, some bits in the second DCI may be truncating, so that the size of the second DCI is aligned with the size of the first DCI. For example, if the second DCI occupies M1 bits, the first DCI occupies N1 bits, M1 and N1 are both positive integers, and M1 is greater than N1, then the N1 bits can be truncated in the second DCI to make the size of the second DCI Same size as the first DCI.
  • Truncating the M1-N1 bits in the second DCI may include: truncating the M1-N1 bits at the front position in the second DCI information, or, truncating the M1-N1 bits at the rear position in the second DCI information, or, at M1-N1 bits are truncated at the middle position in the second DCI information, or part of the bits are truncated at the front, back and middle positions in the second DCI information, so that the sum of the truncated bits is M1-N1 bits, etc., No longer limited here.
  • the truncated part in the second DCI may be a resource indicator bit at a higher frequency position, or the truncated part in the second DCI is an indicator bit at a higher bit of the number information of SL communication subchannels, and so on. If the size of the second DCI is smaller than the size of the first DCI, part of the redundant bits may be added to the second DCI so that the size of the first DCI is aligned with the size of the second DCI, and the redundant bits may be binary Terabit 0 etc.
  • the second DCI occupies M2 bits
  • the first DCI occupies N2 bits
  • M2 and N2 are both positive integers
  • M2 is less than N2
  • N2-M2 redundant bits can be added to the second DCI
  • information can be added to the second DCI Partial bits are added to the front, or back, or front, back, and middle positions in the middle, respectively, so that the size of the second DCI is aligned with the size of the first DCI. If the number of bits occupied by the second DCI is equal to the first DCI, then no operation is required.
  • the size of the second DCI is aligned with the X-th dimension as an example for description.
  • the X-th dimension refers to the size of the first DCI under different conditions.
  • the Xth dimension may refer to any one of the first dimension to the twelfth dimension.
  • the network device may configure the first terminal device to monitor the first DCI in the first search space
  • the first search space may be a search space serving the first terminal device, for example, the first search space may be USS.
  • the size of the first DCI is the first size, and the size of the second DCI may be aligned with the first size.
  • the network device may configure the first terminal device to monitor the first DCI in the second search space
  • the second search space may be a search space serving users of the cell where the first terminal device is located, for example, the second search
  • the space can be CSS.
  • the size of the first DCI is the second size
  • the size of the second DCI may be aligned with the second size.
  • the network device may configure the first terminal device to monitor the first DCI in the first search space and the second search space respectively, and when the first terminal device monitors the first DCI in the first search space, the size of the first DCI It is the first size.
  • the size of the first DCI is the second size.
  • the first search space may be USS
  • the second search space may be CSS.
  • the network device configures the first terminal device to monitor that the total number of different sizes of DCI is less than or equal to the first number, the size of the second DCI is aligned with the first size, otherwise, the size of the second DCI is aligned with the second size.
  • the first quantity may be called DCI size budget (DCI size budget).
  • the DCI size budget refers to that in a communication system (such as an NR system), in order to reduce the processing complexity of the terminal device, the terminal device is prescribed to detect the maximum number of DCI sizes in one slot for each cell .
  • the terminal device may be specified to detect up to 4 DCI sizes in one slot for each cell, and up to 3 DCI sizes for DCI scrambled using C-RNTI.
  • the network device may determine the monitoring DCI configured for the first terminal device, obtain the size of each monitored DCI, and count the total number of different DCI sizes monitored by the first terminal device. For example, the network device configures the first terminal device to monitor three types of DCI, namely the first DCI, the second DCI, and the third DCI.
  • the size of the first DCI is size 0, the size of the second DCI is size 1, and the size of the third DCI is size 2, then the total number of different sizes of the DCI monitored by the first terminal device is 3.
  • the size of the first DCI is size 0, the size of the second DCI is size 1, and the size of the third DCI is size 1, that is, the size of the second DCI is the same as the size of the third DCI, then, the first terminal The total number of different sizes of equipment monitoring DCI is 2.
  • the network device may configure the first terminal device to monitor the first DCI in different formats, and the sizes of the DCI in different formats may be different.
  • the network device or the first terminal device may adopt the following manner to align the size of the second DCI with the size of the first DCI.
  • the functions of the first DCI in different formats may be different.
  • the first DCI in the first format may be called fallback DCI (fallback DCI), etc.
  • the fallback DCI may be used for data scheduling before RRC connection establishment. Or data scheduling after RRC connection establishment.
  • the first DCI in the second format may be called non-fallback DCI (non-fallback DCI).
  • the non-fallback DCI may be used for data scheduling after RRC connection establishment.
  • the first DCI in the first format may be a DCI in format 0_0 (format 0_0), and the size of the first DCI in the first format is For the third size, the size of the second DCI can be aligned with the third size.
  • the first DCI in the second format may be a DCI in format 0_1 (format 0_1), and the size of the first DCI in the second format
  • the size of the second DCI may be aligned with the fourth size.
  • the network device configures the first terminal device to simultaneously monitor the first DCI in the first format and the first DCI in the second format, and the size of the first DCI in the first format is the third size, the first in the second format
  • the size of the DCI is the fourth size.
  • the size of the second DCI may be aligned with the third size, or the size of the second DCI may be aligned with the fourth size.
  • the size of the second DCI may be determined to be aligned with the third size or the fourth size according to the provisions of the agreement or preset rules.
  • the size of the second DCI is aligned with the third size, otherwise, the size of the second DCI is aligned with the fourth size.
  • the first terminal device when the first terminal device monitors the first DCI, it may be determined according to the initial uplink activation BWP resource, or the size of the first DCI, or according to the uplink activation BWP resource, And the determined size of the first DCI according to the initial uplink activated BWP resource is the fifth size, and the determined size of the first DCI according to the activated uplink BWP resource is the sixth size.
  • the network device or the first terminal device may adopt the following manner to determine that the size of the second DCI is aligned with the fifth size or the sixth size.
  • the size of the second DCI is aligned with the fifth size, otherwise the size of the second DCI is aligned with the sixth size, regarding how to determine the monitoring of the first terminal device
  • the second number may be the same as or different from the first number.
  • the second quantity may be DCI size budget (DCI size budget) and so on.
  • the second DCI may use different radio network temporary identifiers (RNTI) for cyclic redundancy check (CRC) scrambling, and the second scrambling for different RNTI
  • RNTI radio network temporary identifiers
  • CRC cyclic redundancy check
  • the sizes of the DCIs are different.
  • the sizes of the second DCI scrambled by different RNTIs can be aligned with the sizes of the first DCI. For how to align the size of the second DCI scrambled by different RNTIs with the size of the first DCI, reference may be made to the above example, which will not be described here.
  • the process shown in FIG. 3 may further include: the network device configuring the first terminal device to monitor the first DCI, the network device schedules uplink data to the terminal device based on the first DCI, and the network device allocates the terminal device based on the second DCI Sidelink resources, etc.
  • the following scheme when the network device configures the first terminal device to monitor the first DCI, the size of the second DCI is aligned with the size of the first DCI, otherwise, The size of the second DCI is aligned with the size of the third DCI.
  • the size of the second DCI when the network device configures the first terminal device not to monitor the first DCI, the size of the second DCI may be aligned with the size of the third DCI.
  • the network device configures the first terminal device to monitor the third DCI the size of the second DCI and the size of the third DCI may be aligned.
  • the size of the second DCI and the size of the third DCI may be aligned.
  • the size of the second DCI is aligned with the size of the third DCI as an example for description, and is not intended as a limited.
  • the network device in the process may be the network device 110 in FIG. 1 described above, and the terminal device may be the terminal device 120 in FIG. 1 described above.
  • the process includes:
  • scheduling downlink data may also be described as scheduling PDSCH (Scheduling of PUSCH in one cell) in a cell.
  • the network device sends the second DCI.
  • the process shown in FIG. 4 may further include: S402.
  • the network device configures the first terminal device to monitor the third DCI
  • the first terminal device aligns the size of the second DCI with the size of the third DCI.
  • the first terminal device receives the second DCI.
  • S401 to S404 is not limited.
  • S401 may be located before S402 in sequence, and S401 may be located after S402 in sequence.
  • S401 in the above step may be replaced by: when the network device configures the first terminal device not to monitor the first DCI, the network device aligns the size of the second DCI with the size of the third DCI, and the first DI is used to Uplink data transmission is scheduled, the second DCI is used for side-link resource allocation, and the third DCI is used for scheduling downlink data transmission.
  • step S402 may be replaced by: when the network device configures the first terminal device not to monitor the first DCI, the first terminal device aligns the size of the second DCI with the size of the third DCI.
  • the process shown in FIG. 4 may further include: the network device configuring the first terminal device to monitor the third DCI, the network device schedules downlink data to the terminal device based on the third DCI, and the network device sends the terminal device based on the second DCI Allocate sidelink resources, etc.
  • the method may further include: the first terminal device determines the sidelink resource according to the second DCI.
  • the first terminal device sends a side link signal on the side link resource, the side link signal may include side link data information and/or SA information, etc., and the second terminal device receives the side link on the side link resource Signal etc.
  • the size of the third DCI is different.
  • the network device and/or the first terminal device will The size of the second DCI is aligned with the size of the third DCI, the following example can be used:
  • the size of the third DCI is a seventh size
  • the first search space is a service for the first terminal device
  • the search space for example, the first search space may be USS, and the first terminal device may align the size of the second DCI with the seventh size.
  • the size of the third DCI is an eighth size
  • the second search space serves the first terminal device
  • the search space of the user in the cell for example, the second search space may be CSS
  • the first terminal device may align the size of the second DCI with the eighth size.
  • the size of the third DCI is the seventh size
  • the size of the third DCI is the eighth size, which may be based on the network device
  • the first terminal device is configured to monitor the total number of different sizes of DCI, and determine that the size of the second DCI is aligned with the seventh size or the eighth size.
  • the size of the second DCI can be aligned with the seventh size, otherwise, the size of the second DCI can be aligned with the eighth size Align.
  • the size of the number of network devices configured with the first terminal device to monitor the DCI please refer to the above description, which will not be described here.
  • the network device may configure the first terminal device to monitor the third DCI in different formats, and the sizes of the DCI in different formats are different.
  • the network device or the first terminal device may adopt the following manner to align the size of the second DCI with the size of the third DCI.
  • the third DCI may include different formats, and the sizes of the DCI in different formats are different.
  • the third DCI may include the third DCI in the first format and the third DCI in the second format.
  • the third DCI in the first format may be a DCI in format 1_0 (format1_0)
  • the third DCI in the second format may be It is the DCI of format 1_1 (format1_1).
  • the size of the third DCI in the first format is the ninth size
  • the size of the third DCI in the second format is the tenth size.
  • the network device configures the first terminal device to monitor the third DCI in the first format
  • the size of the second DCI is aligned with the ninth size
  • the network device configures the first terminal device to monitor the third DCI in the second format
  • the size of the first DCI is aligned with the tenth size
  • the tenth size is the second The third DCI size of the format.
  • the size of the second DCI is Nine sizes or the tenth size are aligned.
  • the size of the second DCI may be aligned with the ninth size or the tenth size according to protocol rules or preset rules.
  • a protocol rule or a preset rule may stipulate that when the network device configures the first terminal device to simultaneously monitor the third DCI in the first format and the third DCI in the second format, the size of the second DCI may be the same as that of the first format.
  • the third DCI ie the ninth size is aligned.
  • the protocol or predetermined rule may stipulate that when the network device configures the first terminal device to simultaneously monitor the third DCI in the first format and the third DCI in the second format, the size of the second DCI may be the same as the second format. Three DCIs (ie tenth size) are aligned.
  • the size of the third DCI when the first terminal device monitors the third DCI, the size of the third DCI may be determined according to the initial downlink activated BWP resource, or the size of the third DCI may be determined according to the activated downlink BWP resource, And the determined size of the third DCI according to the initial downlink activated BWP resource is the eleventh size, and the determined size of the third DCI is the twelfth size according to the activated downlink BWP resource.
  • the network device or the first terminal device may adopt the following manner to determine that the size of the second DCI is aligned with the eleventh size or the twelfth size.
  • the second number can be the same as or different from the first number.
  • the second quantity may be DCI size budget (DCI size budget) and so on.
  • the network device may use different RNTIs to perform CRC scrambling on the second DCI, and the sizes of the second DCI scrambled by different RNTIs are different.
  • different RNTIs may be scrambled.
  • the size of the second DCI is aligned with the size of the third DCI. For how to align the size of the second DCI scrambled by different RNTIs with the size of the third DCI, refer to the above description.
  • the second DCI in the processes shown in FIGS. 3 and 4 is referred to as format X (format X) DCI
  • the first DCI is referred to as format 0 (format 0) DCI
  • the third The DCI is called format 1 (format1) DCI
  • the first terminal device is a UE as an example, to explain:
  • the carrier configuration in one cell includes 1 primary cell and 2 secondary cells.
  • the index of the primary cell is 0, and the indexes of the two secondary cells are 1 and 2, respectively.
  • Three component carriers (CC) are configured in the primary cell, which are the downlink carrier DL CC, the uplink carrier UL CC and the supplementary carrier SUL CC.
  • the secondary cell with index 1 is configured with two carriers, a downlink carrier DL CC and an uplink carrier UL CC. Configure a downlink carrier DL CC in the secondary cell with index 2.
  • the network device may configure the UE to monitor the format 0 DCI and the format 1 DCI, where the format 0 DCI is used to schedule the uplink on the UL carrier UL CC Transmission, format 1 DCI is used to schedule the downlink transmission on the downlink carrier DL CC.
  • the network device may configure the UE to monitor only the DCI in format 1.
  • the network device configures the terminal device to monitor the DCI in format 0.
  • the network device will be able to compare the size of the DCI in format X with Format 0 DCI size alignment.
  • the network device does not monitor the format 0 DCI, also known as the network device only monitors the format 1 DCI, the network device can compare the format X DCI size and format 1 The size of the DCI is aligned. It should be noted that, in the embodiment of the present application, the DCI size alignment is performed within a cell.
  • the format 0 DCI may include the format 0_0 (format 0_0) DCI and the format 0_1 (format 0_1) DCI
  • the format 1 DCI may include the format 1_0 (format 1_0) DCI and DCI of format 1_1 (format 1_1).
  • the DCI in format 0_0 is used for scheduling uplink data, and may appear in CSS and/or USS, that is, the network device may configure the UE to monitor the DCI in format 0_0 in CSS and/or USS.
  • the DCI in format 0_1 is used for scheduling uplink data and can only appear in the USS, that is, the network device can configure the UE to monitor the DCI in format 0_1 in the USS.
  • the DCI in the format 1_0 is used for scheduling downlink data, and may appear in the CSS and/or USS, that is, the network device may configure the UE to monitor the DCI in the CSS and/or USS in the format 1_0.
  • the DCI in format 1_1 can be used to schedule downlink data and can only appear in the USS, that is, the network device can configure the UE to monitor the DCI in the USS in format 1_1.
  • the format 0_0 DCI and the format 1_0 DCI can be called fallback DCI (fallback DCI).
  • the fallback DCI can be used for data scheduling before the RRC link establishment of the UE, and can also be used after the RRC link establishment of the UE Data scheduling.
  • the DCI in format 0_1 and the DCI in format 1_1 may be referred to as non-fallback DCI (non-fallback DCI), which is used for data scheduling after the RRC link establishment of the UE.
  • the network device can determine whether to configure the UE to monitor the DCI in format 0_1 in the USS, and if configured, align the size of the DCI in format X with the size of the DCI in format 0_1, otherwise, adjust the size of the DCI in format X Align with the size of DCI in format 0_0, or align the size of DCI in format X with the size of DCI in format 1_0, or align the size of DCI in format X with the size of DCI in format 1_1.
  • the network device configures the UE to monitor DCI in the format 0_1 in the USS (the uplink carrier exists in the cell, such as the primary cell and the secondary cell numbered 1 in FIG. 5), the UE is set to monitor the format 0_1 in the USS
  • the size of DCI is 0_1_USS.
  • the network device may align the size of the DCI of format X with 0_1_USS, and align the size of the DCI of format X scrambled by different RNTIs with 0_1_USS.
  • the network device configures the UE to not monitor DCI in format 0_1 in the USS (the cell does not have an uplink carrier, such as the secondary cell numbered 2 in Figure 5, or there is an uplink carrier in the cell, but configures the UE not to monitor DCI in format 0_1 ), the following cases will be explained:
  • the size of the format X DCI and the format 1_0 DCI may be aligned. It can be seen from Table 1 that the format 1_0 DCI may appear in CSS or USS, and the format 1_0 DCI has different sizes when CSS and USS appear. When the format 1_0 DCI appears in the CSS, the size is 1_0_CSS, and the format 1_0 DCI appears in the USS, the size is 1_0_USS.
  • the size of the DCI in format X may be aligned with 1_0_CSS, otherwise, the size of the DCI in format X may be aligned with 1_0_USS.
  • the first quantity may be called DCI size budget (DCI size budget).
  • DCI size budget For the DCI size budget, please refer to the above description, and will not be described here.
  • the DCI size of the format X may be aligned with the DCI size of the format 1_1. It can be seen from Table 1 that the DCI of the format 1_1 only appears in the USS, so the size of the DCI of the format 1_1 when the USS appears can be defined as 1_1_USS, and the size of the DCI of the format X can be aligned with 1_1_USS.
  • the DCI size of format X can be aligned with the DCI size of format 1_0 through configuration or predefined protocol, or, the The DCI size is aligned with the DCI size of format 1_1.
  • the network device may determine whether to configure the UE to monitor DCI in format 0_0. If configured, align the size of the DCI in format X with the size of the DCI in format 0_0, otherwise, adjust the size and format of the DCI in format X The size of DCI of 1_0 is aligned, or the size of DCI of format X is aligned with the size of DCI of format 1_1. For the process of aligning the DCI size of format X with the size of DCI of format 1_0, and the process of aligning the size of DCI of format X with the size of DCI of format 1_1, see the above description.
  • the size of DCI of format X is aligned with the size of DCI of format 0_0_CSS, which is equivalent to that the size of DCI of format X is aligned with the size of 1_0_CSS; if the size of 0_0_USS is If the size of 1_0_USS is aligned, the size of DCI in format X is aligned with the size of DCI in format 0_0_USS, which is equivalent to the size of DCI in format X aligned with the size of 1_0_USS.
  • the methods provided by the embodiments of the present application are introduced from the perspectives of network devices, terminals, and interaction between network devices and terminals, respectively.
  • the network device and the terminal may include a hardware structure and/or a software module, and implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether one of the above functions is executed in a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application of the technical solution and design constraints.
  • an embodiment of the present application further provides an apparatus 600 for implementing the function of the network device in the above method.
  • the device may be a network device or a device in the network device.
  • the device may be a chip system.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the device 600 may include:
  • the processing module 601 is configured to align the size of the second DCI with the size of the first DCI when the network device configures the first terminal device to monitor the first downlink control information DCI, and the first DCI is used to schedule uplink data ,
  • the second DCI is used for sidelink resource allocation.
  • the transceiver module 602 is configured to send the second DCI.
  • the processing module 601 and the transceiver module 602 please refer to the description in the above method embodiment.
  • the division of the modules in the embodiments of the present application is schematic, and is only a division of logical functions. In actual implementation, there may be another way of dividing.
  • the functional modules in the embodiments of the present application may be integrated into one process In the device, it can also exist alone physically, or two or more modules can be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or software function modules.
  • an embodiment of the present application provides an apparatus 700 for implementing the function of the network device in the above method.
  • the apparatus may be a network device or an apparatus in the network device.
  • the apparatus 700 includes at least one processor 701, configured to implement the function of the network device in the above method.
  • the processor 701 may align the size of the second DCI with the size of the first DCI when the network device configures the first terminal device to monitor the first downlink control information DCI. For details, see the detailed description in the method. Department will no longer explain.
  • the apparatus 700 may further include at least one memory 702 for storing program instructions and/or data.
  • the memory 702 and the processor 701 are coupled.
  • the coupling in the embodiments of the present application is an interval coupling or communication connection between devices, units or modules, and may be in electrical, mechanical or other forms, and is used for information interaction between devices, units or modules.
  • the processor 701 may cooperate with the memory 702.
  • the processor 701 may execute program instructions stored in the memory 702. At least one of the at least one memory may be included in the processor.
  • the apparatus 700 may further include a communication interface 703 for communicating with other devices through a transmission medium, so that the apparatus used in the apparatus 700 can communicate with other devices.
  • the communication interface 703 may be a transceiver, circuit, bus, module, or other type of communication interface, and the other device may be a first terminal device.
  • the processor 701 uses the communication interface 703 to send and receive data, and is used to implement the method in the above embodiment. For example, the communication interface may send the second DCI.
  • the embodiments of the present application do not limit the connection media between the communication device 703, the processor 701, and the memory 702.
  • the memory 702, the processor 701, and the communication interface 703 are connected by a bus 704.
  • the bus is shown by a thick line in FIG. 7, and the connection mode between other components is only for schematic illustration. , Not to limit.
  • the bus can be divided into an address bus, a data bus, and a control bus. For ease of representation, only a thick line is used in FIG. 7, but it does not mean that there is only one bus or one type of bus.
  • an embodiment of the present application further provides an apparatus 800 for implementing the functions of the terminal device in the above method.
  • the device may be a terminal device or a device in the terminal device.
  • the device may be a chip system.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the device 800 may include:
  • the processing module 801 is configured to align the size of the second DCI with the size of the first DCI when the network device configures the first terminal device to monitor the first DCI.
  • the transceiver module 802 is configured to receive second downlink control information DCI.
  • the processing module 801 and the transceiver module 802 please refer to the description in the above method embodiment.
  • the division of the modules in the embodiments of the present application is schematic, and is only a division of logical functions. In actual implementation, there may be another way of dividing.
  • the functional modules in the embodiments of the present application may be integrated into one process In the device, it can also exist alone physically, or two or more modules can be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or software function modules.
  • an embodiment of the present application provides an apparatus 900 for implementing the function of the first terminal device in the above method.
  • the apparatus may be a terminal device or a device in the terminal device.
  • the apparatus 900 includes at least one processor 901, configured to implement the function of the first terminal device in the above method.
  • the processor 901 may align the size of the second DCI with the size of the first DCI when the network device configures the first terminal device to monitor the first DCI. For details, see the detailed description in the method , Will not be described here.
  • the device 900 may further include at least one memory 902 for storing program instructions and/or data.
  • the memory 902 and the processor 901 are coupled.
  • the coupling in the embodiments of the present application is an interval coupling or communication connection between devices, units or modules, and may be in electrical, mechanical or other forms, and is used for information interaction between devices, units or modules.
  • the processor 901 may cooperate with the memory 902.
  • the processor 901 may execute program instructions stored in the memory 902. At least one of the at least one memory may be included in the processor.
  • the device 900 may further include a communication interface 903 for communicating with other devices through a transmission medium, so that the device used in the device 900 can communicate with other devices.
  • the communication interface 903 may be a transceiver, circuit, bus, module, or other type of communication interface, and the other device may be a second terminal device or a network device.
  • the processor 901 uses the communication interface 903 to send and receive data, and is used to implement the method in the above embodiment.
  • the communication interface 903 may receive the second DCI.
  • the embodiments of the present application do not limit the connection media between the communication device 903, the processor 901, and the memory 902.
  • the memory 902, the processor 901, and the communication interface 903 are connected by a bus 904.
  • the bus is shown by a thick line in FIG. 9.
  • the connection between other components is only for schematic illustration , Not to limit.
  • the bus can be divided into an address bus, a data bus, and a control bus. For ease of representation, only a thick line is used in FIG. 9, but it does not mean that there is only one bus or one type of bus.
  • the processor may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, which may be implemented or Perform the disclosed methods, steps, and logical block diagrams in the embodiments of the present application.
  • the general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied and executed by a hardware processor, or may be executed and completed by a combination of hardware and software modules in the processor.
  • the memory may be a non-volatile memory, such as a hard disk (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), for example Random access memory (random-access memory, RAM).
  • the memory is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.
  • the memory in the embodiment of the present application may also be a circuit or any other device capable of realizing a storage function, which is used to store program instructions and/or data.
  • the methods provided in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software When implemented using software, it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present invention are generated in whole or in part.
  • the computer may be a general-purpose computer, a dedicated computer, a computer network, a network device, user equipment, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server or data center Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device including a server, a data center, and the like integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, digital video disc (DVD)), or a semiconductor medium (for example, SSD).
  • At least one refers to one or more, and “multiple” refers to two or more.
  • the character “/” generally indicates that the related object is a “or” relationship.
  • “At least one of the following” or similar expressions refers to any combination of these items, including any combination of single items or plural items.
  • At least one item (a) in a, b, or c can be expressed as: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, c can be single or multiple.

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Abstract

L'invention concerne un procédé et un appareil de communication. Le procédé comprend les étapes suivantes : lorsqu'un dispositif de réseau configure un premier dispositif terminal pour surveiller de premières informations de commande de liaison descendante (DCI), le dispositif de réseau aligne la taille de secondes DCI avec la taille des premières DCI, les premières DCI étant utilisées pour planifier des données de liaison montante, et les secondes DCI étant utilisées pour une attribution de ressources de liaison latérale ; et le dispositif de réseau envoie les secondes DCI. Étant donné que la taille des premières DCI et la taille des secondes DCI sont identiques, le dispositif terminal effectue une détection aveugle en fonction de la taille d'un élément de DCI à chaque position de canal de commande de liaison descendante physique (PDCCH) candidat. En ce qui concerne la configuration de différentes tailles de DCI pour les premières DCI et les secondes DCI, le procédé peut réduire le nombre de détections aveugles du dispositif terminal, et réduire la complexité de fonctionnement du dispositif terminal.
PCT/CN2020/071528 2019-01-11 2020-01-10 Procédé et appareil de communication WO2020143802A1 (fr)

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CN201910028031.0 2019-01-11
CN201910028031.0A CN111436123B (zh) 2019-01-11 2019-01-11 一种通信方法及装置

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