WO2019076346A1 - 下行控制信息的传输、盲检测次数的获取方法和装置 - Google Patents

下行控制信息的传输、盲检测次数的获取方法和装置 Download PDF

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Publication number
WO2019076346A1
WO2019076346A1 PCT/CN2018/110878 CN2018110878W WO2019076346A1 WO 2019076346 A1 WO2019076346 A1 WO 2019076346A1 CN 2018110878 W CN2018110878 W CN 2018110878W WO 2019076346 A1 WO2019076346 A1 WO 2019076346A1
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Prior art keywords
information
search space
terminal device
downlink control
control information
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PCT/CN2018/110878
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English (en)
French (fr)
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WO2019076346A9 (zh
Inventor
张兴炜
张旭
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to KR1020207013826A priority Critical patent/KR102354668B1/ko
Priority to EP18868483.1A priority patent/EP3691381B1/en
Priority to ES18868483T priority patent/ES2911281T3/es
Priority to JP2020521874A priority patent/JP7175976B2/ja
Priority to BR112020007821-2A priority patent/BR112020007821A2/pt
Publication of WO2019076346A1 publication Critical patent/WO2019076346A1/zh
Publication of WO2019076346A9 publication Critical patent/WO2019076346A9/zh
Priority to US16/851,178 priority patent/US11540147B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0038—Blind format detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/26025—Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0033—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter
    • H04L1/0035—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter evaluation of received explicit signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0092—Indication of how the channel is divided

Definitions

  • the present application relates to communications technologies, and in particular, to a method for transmitting downlink control information, and acquiring a blind detection frequency.
  • the terminal device needs to acquire downlink control information configured by the network device to the terminal device before receiving or transmitting data.
  • the manner in which the terminal device acquires the downlink control information is to perform blind detection in multiple candidate locations included in the search space.
  • the search space usually occupies the frequency domain resources corresponding to the first few symbols of each subframe, and the terminal device periodically performs blind detection on the first few symbols of each subframe.
  • the network device Different from the LTE communication system, in the 5th Generation New Radio Access Technology (5G NR), the network device usually configures multiple independent search spaces for the terminal device. Each search space can have different periods and offsets. The terminal device performs blind detection according to the configured period of the search space. Therefore, there may be a case where multiple search spaces overlap at the same time, and the terminal device needs to blindly detect at least two search spaces at this time.
  • 5G NR 5th Generation New Radio Access Technology
  • the number of blind detections of the terminal device in the preset time period has a maximum value.
  • the number of blind detections allowed by the terminal device in each search space reaches the maximum number of blind detections of the terminal device, at the time of overlap, the terminal device is in each
  • the total number of blind detections in the search space exceeds the maximum that the terminal can reach.
  • the number of blind detections allowed by the terminal device in each search space is small, for example, only half of the maximum number of blind detections of the terminal device, or even one third, etc., the total time of the terminal devices in each search space can be avoided.
  • the number of blind detections exceeds the maximum that the terminal device can reach; however, for non-overlapping moments, the blind detection capability of the terminal device is wasted. The traditional method of transmitting downlink control information is unreasonable.
  • the embodiment of the present invention provides a method for transmitting downlink control information, a method for acquiring a blind detection number, and a device, which are used to solve the problem that the traditional downlink control information transmission method is unreasonable.
  • the embodiment of the present application provides a method for transmitting downlink control information, which is applied to a terminal device side, and includes:
  • the terminal device determines that at least two search spaces exist within the preset time period
  • the terminal device performs blind detection in the at least two search spaces according to the first information, where the first information is used to indicate that the terminal device performs blind detection in the at least two search spaces.
  • the sum of the number of blind detections of the terminal device in the at least two search spaces does not exceed the maximum number of blind detections of the terminal device in the preset time period.
  • the periods of any two of the at least two search spaces are different, or the periods and offsets are the same.
  • the first information includes at least one of the following:
  • the first information includes length information of the downlink control information
  • the terminal device performs blind detection in the at least two search spaces according to the first information, including:
  • the terminal device blindly detects downlink control information of a length indicated by the length information in the at least two search spaces.
  • the length information of the downlink control information is any one of the following:
  • the minimum length value of the length of the downlink control information the maximum length value of the downlink control information length, the length value of the back-off format downlink control information, or the length value of the preset downlink control information.
  • the first information includes at least one priority information of the search space; and the terminal device performs blind detection in the at least two search spaces according to the first information, including:
  • the terminal device performs blind detection in the at least two search spaces according to the priority information.
  • the terminal device performs blind detection in the at least two search spaces according to the priority information, including:
  • the terminal device performs blind detection in the at least two search spaces in order of priority from highest to lowest until the downlink control information is detected or the number of blind detections reaches the maximum number of blind detections of the terminal device or the terminal.
  • the device completes blind detection of the at least two search spaces.
  • the method further includes:
  • the terminal device is configured according to at least one of: type information of the search space, a period of the search space, subcarrier spacing information of the search space, symbol information occupied by the search space, and the search space.
  • the starting position information within the time slot determines the priority of the search space.
  • the first information includes length alignment status information of the downlink control information
  • the terminal device performs blind detection in the at least two search spaces according to the first information, including:
  • the terminal device blindly detects the downlink control information in the at least two search spaces with the aligned downlink control information length.
  • the length alignment status information of the downlink control information is used to indicate that the length of the downlink control information is aligned with the longest downlink control information in the downlink control information; or the fallback format downlink control information The length is aligned to the length of the configuration format downlink control information.
  • the method further includes:
  • the terminal device receives the first information sent by the network device.
  • the method before the performing blind detection in the at least two search spaces, the method further includes:
  • the terminal device determines that the sum of the blind detection times corresponding to the at least two search spaces is greater than the maximum number of blind detections of the terminal device.
  • the first information includes preset candidate location information
  • the terminal device performs blind detection in the at least two search spaces according to the first information, including:
  • the terminal device performs blind detection at a candidate location indicated by the preset candidate location information in the at least two search spaces.
  • the first information includes preset search space information
  • the terminal device performs blind detection in the at least two search spaces according to the first information, including:
  • the terminal device performs blind detection in a preset search space indicated by the preset search space information in the at least two search spaces.
  • the first information includes preset aggregation level information
  • the terminal device performs blind detection in the at least two search spaces according to the first information, including:
  • the terminal device blindly detects candidate positions of the preset aggregation level in the at least two search spaces.
  • the embodiment of the present application further provides a method for obtaining a blind detection number, which is applied to a terminal device side, and includes:
  • the terminal device determines, according to the search space configuration information, the maximum number of blind detections that the terminal device can perform in the search space indicated by the search space configuration information.
  • the search space configuration information includes at least one of the following:
  • Subcarrier spacing information slot type information, symbol number information, bandwidth information, resource block number information, resource unit group number information, resource unit group binding number information, control channel element number information, type information of the search space,
  • the aggregation level type information included in the search space the length category information of the downlink control information in the search space, the mini slot indication information, or the number of slots included in the aggregation slot.
  • the terminal device determines, according to the search space configuration information, the maximum number of blind detections that the terminal device can perform in the search space indicated by the search space configuration information, including:
  • the multi-antenna configuration information includes at least one of the following: an antenna number, a codeword number, and a layer number.
  • the terminal device determines, according to the search space configuration information, the maximum number of blind detections that the terminal device can perform in the search space indicated by the search space configuration information, including:
  • the terminal device determines, according to the search space configuration information, the maximum number of blind detections that the terminal device can perform in the search space indicated by the search space configuration information, including:
  • the terminal device determines, according to the aggregated carrier number information and the search space configuration information, the maximum number of blind detections that can be performed by the terminal device in the search space on each carrier.
  • the method before the terminal device receives the second information sent by the network device, the method further includes:
  • the terminal device sends the network device with the maximum number of blind detections that the terminal device can support.
  • the embodiment of the present application further provides a method for transmitting downlink control information, which is applied to a network device side, and includes:
  • the network device determines downlink control information to be sent
  • the network device sends downlink control information in at least two search spaces within a preset time period according to the first information
  • the first information is used to indicate that the terminal device receives downlink control information in the at least two search spaces.
  • the periods of any two of the at least two search spaces are different, or the periods and offsets are the same.
  • the first information includes at least one of the following:
  • the first information includes the length information of the downlink control information
  • the network device sends the downlink control information in the at least two search spaces according to the first information, including:
  • the network device sends downlink control information of a length indicated by the length information in the at least two search spaces.
  • the length information of the downlink control information is any one of the following:
  • the minimum length value of the length of the downlink control information the maximum length value of the downlink control information length, the length value of the back-off format downlink control information, or the length value of the preset downlink control information.
  • the first information includes the priority information of the at least one search space
  • the network device sends the downlink control information in the at least two search spaces according to the first information, including:
  • the network device sends downlink control information in the at least two search spaces according to the priority information.
  • the method further includes:
  • the network device is configured according to at least one of: type information of the search space, a period of the search space, subcarrier spacing information of the search space, symbol information occupied by the search space, and the search space.
  • the starting position information within the time slot determines the priority of the search space.
  • the first information includes the length alignment status information of the downlink control information
  • the network device sends the downlink control information in the at least two search spaces according to the first information, including:
  • the network device sends the aligned downlink control information in the at least two search spaces.
  • the length alignment status information of the downlink control information is used to indicate that the length of the downlink control information is aligned with the longest downlink control information in the downlink control information; or the fallback format downlink control information The length is aligned to the length of the configuration format downlink control information.
  • the method further includes:
  • the network device sends the first information to the terminal device.
  • the method before the network device sends the downlink control information in the at least two search spaces according to the first information, the method further includes:
  • the network device determines that the sum of the maximum number of blind detections that the terminal device needs to perform in the at least two search spaces is greater than the maximum number of blind detections of the terminal device.
  • the first information includes the preset candidate location information
  • the network device sends the downlink control information in the at least two search spaces according to the first information, including:
  • the network device sends downlink control information at a candidate location indicated by the preset candidate location information in the at least two search spaces.
  • the first information includes the preset search space information
  • the network device sends the downlink control information in the at least two search spaces according to the first information, including:
  • the network device sends downlink control information in a preset search space indicated by the preset search space information in the at least two search spaces.
  • the first information includes the preset aggregation level information
  • the network device sends the downlink control information in the at least two search spaces according to the first information, including:
  • the network device sends downlink control information at a candidate location of the preset aggregation level in the at least two search spaces.
  • the embodiment of the present application further provides a method for obtaining a blind detection number, which is applied to a network device side, where the method includes:
  • the network device determines, according to the maximum number of blind detections and the configuration information of the search space configured by the network device for the terminal device, the maximum number of blind detections that the terminal device can perform in the search space.
  • the configuration information of the search space includes at least one of the following:
  • Subcarrier spacing information slot type information, symbol number information, bandwidth information, resource block number information, resource unit group number information, resource unit group binding number information, control channel element number information, type information of the search space,
  • the aggregation level type information included in the search space the length category information of the downlink control information in the search space, the mini slot indication information, or the number of slots included in the aggregation slot.
  • the network device determines, according to the maximum number of blind detections and the configuration information of the search space configured by the network device for the terminal device, that the terminal device is in the search space.
  • the maximum number of blind detections that can be performed including:
  • the multi-antenna configuration information includes at least one of the following: the number of antennas, the number of codewords, and the number of layers.
  • the network device determines, according to the maximum number of blind detections and the configuration information of the search space configured by the network device for the terminal device, that the terminal device is in the search space.
  • the maximum number of blind detections that can be performed including:
  • the network device determines, according to the maximum number of blind detections and the configuration information of the search space configured by the network device for the terminal device, that the terminal device is in the search space.
  • the maximum number of blind detections that can be performed including:
  • the network device determines, according to the maximum number of blind detections, the number of aggregated carriers, and the configuration information, the maximum number of blind detections that can be performed by the terminal device in the search space on each carrier.
  • the embodiment of the present application further provides a downlink control information transmission apparatus, which is used as a terminal device to perform the downlink control information transmission method of the foregoing first aspect, and has the same or similar technical features and technical effects.
  • the device includes:
  • a search space detecting module configured to determine that at least two search spaces exist within a preset time period
  • a blind detection module configured to perform blind detection in the at least two search spaces according to the first information, where the first information is used to indicate that the device performs blind detection in the at least two search spaces, The sum of the number of blind detections of the device in the at least two search spaces does not exceed the maximum number of blind detections of the device within the preset time period.
  • the periods of any two of the at least two search spaces are different, or the periods and offsets are the same.
  • the first information includes at least one of the following:
  • the first information includes length information of the downlink control information
  • the blind detection module is configured to blindly detect the length indicated by the length information in the at least two search spaces. Downstream control information.
  • the length information of the downlink control information is any one of the following:
  • the minimum length value of the length of the downlink control information the maximum length value of the downlink control information length, the length value of the back-off format downlink control information, or the length value of the preset downlink control information.
  • the first information includes at least one priority information of the search space
  • the blind detection module is specifically configured to: in the at least two search spaces according to the priority information. Blind detection in the middle.
  • the blind detection module is specifically configured to perform blind detection in the at least two search spaces in order of priority from highest to lowest until downlink control information or blind detection times are detected. A maximum number of blind detections of the device is reached or the device completes blind detection of the at least two search spaces.
  • the apparatus further includes a priority acquiring module, where the priority acquiring module is configured to: according to at least one of: type information of the search space, a period of the search space The subcarrier spacing information of the search space, the symbol information occupied by the search space, and the starting location information of the search space in the time slot determine the priority of the search space.
  • the first information includes length alignment state information of the downlink control information
  • the blind detection module is specifically configured to: when the first information indicates that the downlink control information is aligned, The downlink control information is blindly detected in at least two search spaces with the aligned downlink control information length.
  • the length alignment status information of the downlink control information is used to indicate that the length of the downlink control information is aligned with the longest downlink control information in the downlink control information; or the fallback format downlink control information The length is aligned to the length of the configuration format downlink control information.
  • the apparatus further includes a receiving module, configured to receive the first information sent by the network device.
  • the blind detection module is further configured to determine that a sum of blind detection times corresponding to the at least two search spaces is greater than a maximum number of blind detections of the device.
  • the first information includes preset candidate location information
  • the blind detection module is specifically configured to: at the candidate location indicated by the preset candidate location information in the at least two search spaces Perform blind detection.
  • the first information includes preset search space information
  • the blind detection module is specifically configured to: preset the search space indicated by the preset search space information in the at least two search spaces. Blind detection in the middle.
  • the first information includes preset aggregation level information
  • the blind detection module is specifically configured to blindly detect the candidate location of the preset aggregation level in the at least two search spaces.
  • the embodiment of the present application further provides a device for acquiring a blind detection number, which is used as a terminal device to perform the method for acquiring the number of blind detections in the second aspect, and has the same or similar technical features and technical effects.
  • the device includes:
  • a receiving module configured to receive second information sent by the network device, where the second information includes search space configuration information
  • the blind detection number acquisition module is configured to determine, according to the search space configuration information, a maximum number of blind detections that the device can perform in a search space indicated by the search space configuration information.
  • the search space configuration information includes at least one of the following:
  • Subcarrier spacing information slot type information, symbol number information, bandwidth information, resource block number information, resource unit group number information, resource unit group binding number information, control channel element number information, type information of the search space,
  • the aggregation level type information included in the search space the length category information of the downlink control information in the search space, the mini slot indication information, or the number of slots included in the aggregation slot.
  • the blind detection times acquisition module is specifically configured to determine, according to the search space configuration information and the multi-antenna configuration information of the device, that the device is indicated by the search space configuration information.
  • the blind detection times acquisition module is specifically configured to determine, according to the number of beams and/or transmission points that the device needs to monitor, and the search space configuration information, that the device is in each The maximum number of blind detections that can be made by the beam and/or transmission point.
  • the blind detection times acquisition module is specifically configured to determine, according to the aggregated carrier number information and the search space configuration information, a maximum that can be performed in a search space of each device on each carrier. The number of blind detections.
  • the device further includes:
  • a sending module configured to send, to the network device, a maximum number of blind detections that the device can support.
  • the embodiment of the present application further provides a downlink control information transmission apparatus, which is used as a network device to perform the downlink control information transmission method in the foregoing third aspect, and has the same or similar technical features and technical effects.
  • the device includes:
  • a downlink control information acquiring module configured to determine downlink control information to be sent
  • a downlink control information sending module configured to send downlink control information in at least two search spaces within a preset time period according to the first information
  • the first information is used to indicate that the terminal device receives downlink control information in the at least two search spaces.
  • the periods of any two of the at least two search spaces are different, or the periods and offsets are the same.
  • the first information includes at least one of the following:
  • the first information includes length information of the downlink control information
  • the downlink control information sending module is specifically configured to send, according to the length information, the at least two search spaces. Downstream control information of length.
  • the length information of the downlink control information is any one of the following:
  • the minimum length value of the length of the downlink control information the maximum length value of the downlink control information length, the length value of the back-off format downlink control information, or the length value of the preset downlink control information.
  • the first information includes at least one priority information of the search space
  • the downlink control information sending module is specifically configured to: according to the priority information, in the at least two The downlink control information is sent in the search space.
  • the device further includes:
  • a priority obtaining module configured to: according to at least one of: type information of the search space, a period of the search space, subcarrier spacing information of the search space, symbol information occupied by the search space, The starting location information of the search space in the time slot is determined, and the priority of the search space is determined.
  • the first information includes length alignment status information of the downlink control information
  • the downlink control information sending module is specifically configured to: when the first information indicates that the downlink control information is aligned in length, Aligned downlink control information is transmitted in the at least two search spaces.
  • the length alignment status information of the downlink control information is used to indicate that the length of the downlink control information is aligned with the longest downlink control information in the downlink control information; or the fallback format downlink control information The length is aligned to the length of the configuration format downlink control information.
  • the device further includes:
  • a sending module configured to send the first information to the terminal device.
  • the downlink control information sending module is further configured to: determine that a sum of a maximum number of blind detections that the terminal device needs to perform in the at least two search spaces is greater than that of the terminal device Maximum number of blind detections.
  • the first information includes preset candidate location information
  • the downlink control information sending module is specifically configured to: the candidate of the preset candidate location information indication in the at least two search spaces The downlink control information is sent at the location.
  • the first information includes preset search space information
  • the downlink control information sending module is specifically configured to: preset in the preset search space information in the at least two search spaces The downlink control information is sent in the search space.
  • the first information includes preset aggregation level information
  • the downlink control information sending module is specifically configured to: candidate for the preset aggregation level in the at least two search spaces.
  • the downlink control information is sent at the location.
  • the embodiment of the present application further provides a device for acquiring the number of blind detections, which is used as a network device to perform the method for acquiring the number of blind detections in the fourth aspect, which has the same or similar technical features and technical effects.
  • the device includes:
  • a receiving module configured to receive a maximum number of blind detections supported by the terminal device sent by the terminal device
  • a maximum blind detection number acquisition module configured to determine, according to the maximum number of blind detections and the configuration information of the search space configured by the device for the terminal device, the maximum blindness that the terminal device can perform in the search space Number of tests.
  • the configuration information of the search space includes at least one of the following:
  • Subcarrier spacing information slot type information, symbol number information, bandwidth information, resource block number information, resource unit group number information, resource unit group binding number information, control channel element number information, type information of the search space,
  • the aggregation level type information included in the search space the length category information of the downlink control information in the search space, the mini slot indication information, or the number of slots included in the aggregation slot.
  • the maximum number of blind detection times acquiring module is specifically configured to determine, according to the maximum number of blind detections, the configuration information, and multi-antenna configuration information of the terminal device, that the terminal device is in The maximum number of blind detections that can be performed in the search space; wherein the multi-antenna configuration information includes at least one of the following: an antenna number, a codeword number, and a layer number.
  • the maximum number of blind detection times acquiring module is specifically configured to determine, according to the maximum number of blind detections, the number of beams and/or transmission points that the terminal device needs to monitor, and the configuration information. The maximum number of blind detections that the terminal device can perform at each beam and/or transmission point.
  • the maximum number of blind detection times acquisition module is specifically configured to determine, according to the maximum number of blind detections, the number of aggregated carriers, and the configuration information, that the terminal device searches on each carrier. The maximum number of blind detections that can be performed in space.
  • the ninth aspect, the embodiment of the present application further provides a terminal device, which performs the method for transmitting downlink control information in the foregoing first aspect, and has the same or similar technical features and technical effects.
  • Terminal equipment includes:
  • a processor configured to determine that at least two search spaces exist within a preset time period
  • Performing blind detection in the at least two search spaces according to the first information where the first information is used to indicate that the terminal device performs blind detection in the at least two search spaces, where the terminal device is The sum of the number of blind detections in the at least two search spaces does not exceed the maximum number of blind detections of the terminal device in the preset time period.
  • the periods of any two of the at least two search spaces are different, or the periods and offsets are the same.
  • the first information includes at least one of the following:
  • the first information includes length information of downlink control information
  • the processor is specifically configured to: blindly detect, in the at least two search spaces, a length indicated by the length information. Downstream control information.
  • the length information of the downlink control information is any one of the following:
  • the minimum length value of the length of the downlink control information the maximum length value of the downlink control information length, the length value of the back-off format downlink control information, or the length value of the preset downlink control information.
  • the first information includes at least one priority information of the search space
  • the processor is specifically configured to: in the at least two search spaces, according to the priority information. Perform blind detection.
  • the processor is specifically configured to perform blind detection in the at least two search spaces in order of priority from highest to lowest until the downlink control information is detected or the number of blind detections is reached.
  • the maximum number of blind detections of the terminal device or the terminal device completes blind detection of the at least two search spaces.
  • the processor is further configured to: according to at least one of: type information of the search space, a period of the search space, subcarrier spacing information of the search space, The symbol information occupied by the search space, the start position information of the search space in a time slot, and the priority of the search space are determined.
  • the first information includes length alignment state information of the downlink control information
  • the processor is specifically configured to: when the first information indicates that the downlink control information is aligned, at least The downlink control information is blindly detected in the two search spaces with the aligned downlink control information length.
  • the length alignment status information of the downlink control information is used to indicate that the length of the downlink control information is aligned with the longest downlink control information in the downlink control information; or the fallback format downlink control information The length is aligned to the length of the configuration format downlink control information.
  • the terminal device further includes a receiver, configured to receive the first information sent by the network device.
  • the processor is further configured to determine that a sum of blind detection times corresponding to the at least two search spaces is greater than a maximum number of blind detections of the terminal device.
  • the first information includes preset candidate location information
  • the processor is specifically configured to perform, at a candidate location indicated by the preset candidate location information in the at least two search spaces. Blind detection.
  • the first information includes preset search space information
  • the processor is specifically configured to: in a preset search space indicated by the preset search space information in the at least two search spaces. Perform blind detection.
  • the first information includes preset aggregation level information
  • the processor is specifically configured to blindly detect candidate locations of the preset aggregation level in the at least two search spaces.
  • the embodiment of the present application further provides a terminal device, which performs the method for acquiring the number of blind detections in the second aspect, and has the same or similar technical features and technical effects.
  • Terminal equipment includes:
  • a receiver configured to receive second information sent by the network device, where the second information includes search space configuration information
  • a processor configured to determine, according to the search space configuration information, a maximum number of blind detections that the terminal device can perform in a search space indicated by the search space configuration information.
  • the search space configuration information includes at least one of the following:
  • Subcarrier spacing information slot type information, symbol number information, bandwidth information, resource block number information, resource unit group number information, resource unit group binding number information, control channel element number information, type information of the search space,
  • the aggregation level type information included in the search space the length category information of the downlink control information in the search space, the mini slot indication information, or the number of slots included in the aggregation slot.
  • the processor is specifically configured to determine, according to the search space configuration information and the multi-antenna configuration information of the terminal device, the terminal device that is indicated by the search space configuration information.
  • the processor is specifically configured to determine, according to the number of beams and/or transmission points that the terminal device needs to monitor, and the search space configuration information, that the terminal device is in each beam. And/or the maximum number of blind detections that can be made at the transmission point.
  • the processor is specifically configured to determine, according to the aggregated carrier number information and the search space configuration information, a maximum blind detection that can be performed by the terminal device in a search space on each carrier. frequency.
  • the terminal device further includes:
  • a transmitter configured to send, to the network device, a maximum number of blind detections that the terminal device can support.
  • the embodiment of the present application further provides a network device, which performs the method for transmitting downlink control information in the foregoing third aspect, and has the same or similar technical features and technical effects.
  • Network equipment includes:
  • a processor configured to determine downlink control information to be sent
  • the first information is used to indicate that the terminal device receives downlink control information in the at least two search spaces.
  • the periods of any two of the at least two search spaces are different, or the periods and offsets are the same.
  • the first information includes at least one of the following:
  • the first information includes length information of downlink control information
  • the processor is specifically configured to: send, in the at least two search spaces, a downlink of a length indicated by the length information. Control information.
  • the length information of the downlink control information is any one of the following:
  • the minimum length value of the length of the downlink control information the maximum length value of the downlink control information length, the length value of the back-off format downlink control information, or the length value of the preset downlink control information.
  • the first information includes at least one priority information of the search space
  • the processor is specifically configured to: in the at least two search spaces, according to the priority information.
  • the processor is further configured to: according to at least one of: type information of the search space, a period of the search space, subcarrier spacing information of the search space, The symbol information occupied by the search space, the start position information of the search space in the time slot, and the priority of the search space are determined.
  • the first information includes length alignment state information of the downlink control information
  • the processor is specifically configured to: when the first information indicates that the downlink control information is aligned, at least Aligned downlink control information is sent in both search spaces.
  • the length alignment status information of the downlink control information is used to indicate that the length of the downlink control information is aligned with the longest downlink control information in the downlink control information; or the fallback format downlink control information The length is aligned to the length of the configuration format downlink control information.
  • the network device further includes:
  • a transmitter configured to send the first information to the terminal device.
  • the processor is further configured to: determine that a sum of a maximum number of blind detections that the terminal device needs to perform in the at least two search spaces is greater than a maximum blind detection of the terminal device frequency.
  • the first information includes preset candidate location information
  • the processor is specifically configured to send, at a candidate location indicated by the preset candidate location information in the at least two search spaces. Downstream control information.
  • the first information includes preset search space information
  • the processor is specifically configured to: in a preset search space indicated by the preset search space information in the at least two search spaces. Send downlink control information.
  • the first information includes preset aggregation level information
  • the processor is specifically configured to send, at a candidate location of the preset aggregation level in the at least two search spaces. Downstream control information.
  • the embodiment of the present application further provides a network end device, which performs the method for acquiring the number of blind detections in the fourth aspect, and has the same or similar technical features and technical effects.
  • Network equipment including:
  • a receiver configured to receive a maximum number of blind detections supported by the terminal device sent by the terminal device;
  • a processor configured to determine, according to the maximum number of blind detections and the configuration information of the search space configured by the network device for the terminal device, the maximum number of blind detections that the terminal device can perform in the search space.
  • the configuration information of the search space includes at least one of the following:
  • Subcarrier spacing information slot type information, symbol number information, bandwidth information, resource block number information, resource unit group number information, resource unit group binding number information, control channel element number information, type information of the search space,
  • the aggregation level type information included in the search space the length category information of the downlink control information in the search space, the mini slot indication information, or the number of slots included in the aggregation slot.
  • the processor is configured to determine, according to the maximum number of blind detections, the configuration information, and multi-antenna configuration information of the terminal device, that the terminal device is in the search space.
  • the processor is specifically configured to determine the terminal device according to the maximum number of blind detections, a number of beams and/or transmission points that the terminal device needs to monitor, and the configuration information. The maximum number of blind detections that can be made at each beam and/or transmission point.
  • the processor is configured to determine, according to the maximum number of blind detections, the number of aggregated carriers, and the configuration information, that the terminal device can be in a search space on each carrier. The maximum number of blind detections performed.
  • the embodiment of the present application further provides a program, where the program is executed by the processor, to perform a method for transmitting downlink control information corresponding to the terminal device side of the first aspect.
  • the embodiment of the present application further provides a program product, such as a computer readable storage medium, including the program of the thirteenth aspect.
  • the embodiment of the present application further provides a computer readable storage medium, where the computer readable storage medium stores an instruction, when the computer is running on the computer, causing the computer to perform the first aspect corresponding to the terminal device side.
  • the transmission method of the downlink control information is not limited to the above-described embodiments.
  • the embodiment of the present application further provides a program, when executed by the processor, is configured to perform a method for acquiring a blind detection number corresponding to the terminal device side of the second aspect.
  • the embodiment of the present application further provides a program product, such as a computer readable storage medium, including the program of the sixteenth aspect.
  • the embodiment of the present application further provides a computer readable storage medium, where the computer readable storage medium stores instructions, when executed on a computer, causing the computer to perform the second aspect of the terminal device side corresponding to The method of obtaining the number of blind detections.
  • the embodiment of the present application further provides a program, when executed by a processor, to perform a method for transmitting downlink control information corresponding to the network device side of the third aspect.
  • the embodiment of the present application further provides a program product, such as a computer readable storage medium, including the program of the above nineteenth aspect.
  • the embodiment of the present application further provides a computer readable storage medium, where the computer readable storage medium stores instructions, when executed on a computer, causing the computer to execute the third aspect network device side Corresponding transmission method of downlink control information.
  • the embodiment of the present application further provides a program, when executed by the processor, for performing the method for acquiring the number of blind detections corresponding to the network device side in the fourth aspect.
  • the embodiment of the present application further provides a program product, such as a computer readable storage medium, including the program of the above twenty-second aspect.
  • the embodiment of the present application further provides a computer readable storage medium, where the computer readable storage medium stores instructions, when executed on a computer, causing the computer to execute the fourth aspect of the network device side Corresponding method of obtaining the number of blind detections.
  • Embodiment 1 is a schematic diagram of Embodiment 1 of a network architecture to which an embodiment of the present application is applied;
  • FIG. 2 is a schematic diagram of a structure of a time-frequency resource in a communication system
  • FIG. 3 is a schematic flowchart of a method for transmitting downlink control information according to Embodiment 1 of the present application;
  • FIG. 4 is a schematic diagram of a period of a search space provided by an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a method for transmitting downlink control information according to Embodiment 2 of the present application;
  • FIG. 6 is a schematic flowchart of a method for acquiring a blind detection frequency according to Embodiment 1 of the present application.
  • FIG. 7 is a schematic flowchart of a method for transmitting downlink control information according to Embodiment 3 of the present application.
  • FIG. 8 is a schematic flowchart of a method for acquiring a blind detection number according to Embodiment 2 of the present application.
  • FIG. 9 is a schematic structural diagram of a downlink control information transmission apparatus according to Embodiment 1 of the present application.
  • FIG. 10 is a schematic structural diagram of a downlink control information transmission apparatus according to Embodiment 2 of the present application.
  • FIG. 11 is a schematic structural diagram of an apparatus for acquiring a blind detection number according to Embodiment 1 of the present application.
  • FIG. 12 is a schematic structural diagram of a downlink control information transmission apparatus according to Embodiment 3 of the present application.
  • FIG. 13 is a schematic structural diagram of an apparatus for acquiring a blind detection number according to Embodiment 2 of the present application.
  • FIG. 14 is a schematic structural diagram of a terminal device according to Embodiment 1 of the present application.
  • FIG. 15 is a schematic structural diagram of a network device according to Embodiment 1 of the present application.
  • FIG. 1 is a schematic diagram of Embodiment 1 of a network architecture to which the embodiment of the present application is applied.
  • the network architecture provided by this embodiment includes a network device 10 and at least one terminal device 20.
  • the network device 10 is a device for accessing the terminal device 20 to the wireless network, and may be in Global System of Mobile communication (GSM) or Code Division Multiple Access (CDMA).
  • Base Transceiver Station (BTS) which may also be a base station (NodeB, NB for short) in Wideband Code Division Multiple Access (WCDMA), or Long Term Evolution (referred to as Long Term Evolution).
  • the relay station, the access point, the in-vehicle device, the wearable device, and the like in the frequency band are not limited herein.
  • FIG. 1 schematically shows a possible schematic diagram, taking the network device 10 as a base station as an example.
  • the terminal device 20 may be a wireless terminal or a wired terminal, the wireless terminal may be a device that provides voice and/or other service data connectivity to the user, a handheld device with a wireless connection function, or other processing device connected to the wireless modem. .
  • the wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a mobile terminal.
  • RAN Radio Access Network
  • the computer for example, can be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with the wireless access network.
  • FIG. 1 schematically depicts a possible schematic diagram, taking the terminal device 20 as a mobile phone as an example.
  • the terminal device 20 needs to know the downlink control information (DCI) configured by the network device 10 to the terminal device 20 before receiving or transmitting the data information.
  • the DCI is used to indicate how the terminal device performs downlink data reception and uplink data transmission.
  • the DCI may include information such as resources, modulation and coding modes, code rates, and redundancy versions used by the terminal device for uplink and downlink data transmission.
  • the network device 10 When transmitting the DCI, the network device 10 generally transmits the DCI on the physical downlink control channel (PDCCH) in the search space.
  • PDCCH physical downlink control channel
  • the time-frequency resource of the LTE system is divided into a plurality of 10ms radio frames in the time domain, and one radio frame includes ten 1ms subframes, each of which includes two slots.
  • the number of symbols included in each slot is related to the cyclic prefix (CP) length in the subframe. If the CP is a normal (normal) CP, each slot includes 7 symbols, and each subframe is composed of 14 symbols. For example, each subframe has a sequence number of #0, #1, #2, #3, #4, respectively. , #5, #6, #7, #8, #9, #10, #11, #12, #13 symbol composition. If the CP is an extended (long) CP, each slot includes 6 symbols, and each subframe is composed of 12 symbols.
  • each subframe has a sequence number of #0, #1, #2, #3, #4,# 5, #6, #7, #8, #9, #10, #11 symbol composition.
  • the smallest unit of the time-frequency resource in the frequency domain is a subcarrier.
  • a Resource Element (RE) is the smallest unit that divides a time-frequency resource and is uniquely identified by an index pair (k, l). Where k is a subcarrier index and l is a symbol index. Of course, resource units can also be identified by other forms of identification.
  • REG Resource Element Group
  • the granularity of the frequency domain scheduling is a Resource Block Group (RBG), and one RGB includes a plurality of Resource Block (RB) pairs.
  • One RB pair is a two-dimensional resource block of 12 subcarriers in a frequency domain of one subframe in the time domain.
  • one RB pair contains 168 time-frequency resource units RE
  • one RB pair contains 144 time-frequency resource units RE.
  • 2 is a schematic diagram of a time-frequency resource structure in a communication system. As shown in FIG. 2, two RBs (one PRB pair) of Normal CP are shown.
  • the control channel element (CCE) is the smallest unit when the PDCCH occupies time-frequency resources.
  • One PDCCH occupies at least one CCE.
  • One CCE includes 9 REGs, that is, 36 REs.
  • the REGs constituting the CCE may be continuously distributed or intermittently distributed.
  • the time-frequency resource of the 5G NR system is divided into multiple 10ms radio frames in the time domain, and one radio frame includes 10 1ms subframes, each of which includes several slots.
  • one subframe contains one slot
  • one subframe includes two slots, the number of symbols included in each slot and the cyclic prefix (CP) length in the subframe.
  • CP cyclic prefix
  • each slot includes 14 symbols, for example, the numbers are #0, #1, #2, #3, #4, #5, respectively. Symbolic composition of #6, #7, #8, #9, #10, #11, #12, #13.
  • each slot includes 12 symbols, for example, the numbers are #0, #1, #2, #3, #4, #5, #6, #7, #8,# 9, #10, #11 symbol composition.
  • the smallest unit of the time-frequency resource in the frequency domain is a subcarrier.
  • a Resource Element (RE) is the smallest unit that divides a time-frequency resource and is uniquely identified by an index pair (k, l). Where k is a subcarrier index and l is a symbol index. Of course, resource units can also be identified by other forms of identification. Twelve consecutive REs belonging to the same symbol constitute a Resource Element Group (REG).
  • REG Resource Element Group
  • the granularity of the frequency domain scheduling is a Resource Block Group (RBG), and one RGB includes a plurality of Resource Blocks (RBs).
  • the control channel element (CCE) is the smallest unit when the PDCCH occupies time-frequency resources.
  • One PDCCH occupies at least one CCE.
  • One CCE includes 6 REGs, that is, 72 REs.
  • the REGs constituting the CCE may be continuously distributed or intermittently distributed.
  • the common search space includes 16 CCEs, and the aggregation level (AL) of the CCEs in the common search space is only 4 and 8.
  • the aggregation level is used to indicate how many CCEs in a common search space are used to carry information, that is, the number of CCEs occupied by one PDCCH.
  • the AL is set to 8
  • one PDCCH includes 8 CCEs
  • one common search space may include two PDCCHs, and the two PDCCHs respectively occupy CCEs numbered 0 to 7, and CCEs numbered 8 to 15.
  • the AL of the common search space is not known, and therefore, it is necessary to perform the search in the common search space in units of 4 and 8 CCEs, respectively.
  • CRC Cyclic Redundancy Check
  • the terminal device 20 only needs to perform the CRC check for up to 6 times to retrieve the common search space.
  • the aggregation level of the dedicated search space may be any one of 1, 2, 4, and 8.
  • At least one PDCCH may also be included in a dedicated search space. The number of CCEs occupied by one PDCCH depends on the aggregation level.
  • the terminal device Since the DCI information may be carried in the public search space and may also be carried in the dedicated search space, in the LTE system, the terminal device needs to blindly detect 22 times when blindly detecting DCI of one length. When the length of the DCI that the terminal device needs to detect blindly is two possibilities, the terminal device needs to detect blindly up to 44 times.
  • the search space in the LTE system is usually located on the first 3 symbols of each subframe, and the terminal device performs blind detection on the first 3 symbols of each subframe, and the number of blind detections does not exceed 44 times.
  • the single carrier bandwidth can reach 400 MHz. If the downlink control channel PDCCH occupies the full bandwidth like LTE, the UE needs to blindly detect the full bandwidth, and the complexity is doubled and the power is doubled. The consumption will be great.
  • the network device typically configures a plurality of independent search space/control resource sets (CORESET) for the terminal device.
  • CORESET is a time-frequency resource set for carrying control information, with 1 to 3 symbols in the time domain and partial bandwidth in the frequency domain.
  • the search space is calculated according to a hash function in the control resource set CORESET. Position Zhang Cheng's space.
  • the search space is also divided into two types: a common search space and a dedicated search space.
  • the aggregation level can be 1, 2, 4, 8, and possibly 16 or 32.
  • the terminal device performs blind detection according to the configured period of the search space. Therefore, there may be a case where multiple search spaces overlap at the same time, and the terminal device needs to blindly detect at least two search spaces at this time.
  • the number of blind detections of the terminal device in the preset time period has a maximum value.
  • the number of blind detections allowed by the terminal device in each search space reaches the maximum number of blind detections of the terminal device, at the time of overlap, the terminal device is in each
  • the total number of blind detections in the search space exceeds the maximum that the terminal can reach.
  • the number of blind detections allowed by the terminal device in each search space is small, for example, only half of the maximum number of blind detections of the terminal device, or even one third, etc., the total time of the terminal devices in each search space can be avoided.
  • the number of blind detections exceeds the maximum that the terminal device can reach; however, for non-overlapping moments, the blind detection capability of the terminal device is wasted. The traditional method of transmitting downlink control information is unreasonable.
  • the embodiment of the present application provides a blind transmission method and apparatus for downlink control information.
  • the method and device for blind transmission of downlink control information provided by the embodiments of the present application are described in detail below with reference to specific embodiments. In the following specific embodiments, the same or similar concepts or processes may not be described in some embodiments.
  • FIG. 3 is a schematic flowchart of a method for transmitting downlink control information according to Embodiment 1 of the present application.
  • the terminal device performs blind detection in each search space according to the first information, and ensures that the number of blind detections of the terminal device does not exceed the maximum number of blind detections of the terminal device at the overlapping time.
  • a method for transmitting downlink control information includes:
  • the terminal device determines that at least two search spaces exist within a preset time period.
  • the terminal device determines the number of search spaces in the preset time period according to the information of the search space configured by the received network device.
  • the preset time period may be one or more time slots, or may be a mini time slot, or may be one or more symbols, or may be a fixed time period such as 1 ms, or may be one or more.
  • the preset time period is an overlapping time of the cycle points of at least two search spaces. Among them, the mini-slot contains less than seven symbols.
  • the maximum value that the terminal device can achieve in the preset time period is the maximum number of blind detections of the terminal device.
  • the number of blind detections that the terminal device can perform in each search space is set to the maximum number of blind detections.
  • the terminal device needs to determine that there are multiple search spaces in the preset time period. When there is only one search space in the preset time period, the number of blind detections required by the terminal device does not exceed the maximum number of blind detections of the terminal device, and the blind detection capability of the terminal device is not wasted.
  • the terminal device performs blind detection in at least two search spaces according to the first information.
  • the first information is used to indicate that the terminal device performs blind detection in at least two search spaces, and the total number of blind detection times of the terminal device in the at least two search spaces does not exceed the maximum number of blind detection times of the terminal device in the preset time period. .
  • the terminal device may have a situation in which the number of times that the blind detection is actually required exceeds the maximum number of blind detections of the terminal device in the time period.
  • the terminal device performs blind detection in at least two search spaces according to the first information, so that the total number of blind detections of the terminal device in at least two search spaces does not exceed the maximum number of blind detections of the terminal device.
  • the first information may be used to indicate that the terminal device uniformly allocates the maximum number of blind detections to each search space. For example, when the terminal device has a maximum number of blind detections within a preset time period of 44, the preset time period exists.
  • the maximum number of blind detections of the terminal device in the two search spaces can be set to 22. In this way, when there is only one search space in the preset time period, the number of blind detections of the terminal device in the search space can reach the maximum number of blind detections.
  • the terminal device searches for each time. The sum of the number of blind detections that can be achieved in the space does not exceed the maximum number of blind detections of the terminal device. At this time, the terminal device can perform blind detection in multiple search spaces at the same time.
  • the first information may be used to indicate that the terminal device performs blind detection in different search spaces according to the priority, that is, the maximum number of blind detections is preferentially used for one of the search spaces, and if the search space is not detected, the search space is not detected. DCI, and there are still remaining blind detection times, then blind detection is performed in the sub-priority search space within the range of remaining blind detection times.
  • the first information may also be used to indicate that the terminal device performs blind detection in each search space in other manners.
  • the method for transmitting downlink control information includes: determining, by the terminal device, that at least two search spaces exist in a preset time period, and the terminal device performs blind detection in at least two search spaces according to the first information, where The information is used to indicate that the terminal device performs blind detection in at least two search spaces, and the total number of blind detections of the terminal device in the at least two search spaces does not exceed the maximum number of blind detections of the terminal device in the preset time period.
  • the terminal device determines the number of search spaces in the preset time period, and performs blind detection according to the first information when the number of search spaces is at least two, thereby ensuring that the terminal device is in at least two search spaces. The sum of the number of blind detections does not exceed the maximum number of blind detections of the terminal device in the preset time period, and the waste detection capability of the terminal device is also avoided.
  • the terminal device determines that at least two search spaces exist in the preset time period, and the periods of any two of the at least two search spaces are different, or both the period and the offset are the same.
  • the two search spaces do not appear within the same preset time period.
  • the period and offset of the two search spaces are the same, the two search spaces must appear in the same preset time period.
  • the periods of the two search spaces are different, there must be a preset time period, and both time periods exist.
  • 4 is a schematic diagram of a period of a search space according to an embodiment of the present application. As shown in FIG. 4, the period of the search space 1 is 2 slots, and the period of the search space 2 is 5 slots. Therefore, every 10 times There is an overlapping time slot in which the terminal device has two search spaces. As shown in FIG. 4, the overlapping time slots are time slots 10, 20, and 30.
  • the first information includes at least one of the following:
  • the terminal device in the foregoing embodiments performs blind detection in the at least two search spaces according to the first information. Specifically include:
  • the terminal device blindly detects downlink control information of a length indicated by the length information in at least two search spaces.
  • the terminal device blindly detects only one length of DCI during blind detection. By transmitting different lengths of DCI in the same length, the number of blind detections required by the terminal device is reduced.
  • the length information of the downlink control information is any one of the following:
  • the minimum length value of the length of the downlink control information the maximum length value of the downlink control information length, the length value of the back-off format downlink control information, or the length value of the preset downlink control information.
  • the length information of the downlink control information included in the first information may be the length of the downlink control information with the smallest length, the length of the downlink control information with the largest length, the length of the downlink control information of the fallback format, or the preset downlink control.
  • the length of the downlink control information in the fallback format may prevent the terminal device from being blurred between the RRC configuration and the RRC reconfiguration.
  • the length of the preset downlink control information may be configured by the network device to use the Radio Resource Control (RRC) information to the terminal device.
  • RRC Radio Resource Control
  • the length information of the downlink control information included in the first information may be other lengths.
  • the terminal device in the foregoing embodiments performs blind detection in the at least two search spaces according to the first information, where include:
  • the terminal device performs blind detection at a candidate location indicated by preset candidate location information in at least two search spaces.
  • the total number of candidate locations included in the search space is directly proportional to the number of blind detections that the terminal device needs to perform within the search space. Therefore, the terminal device detects only some presets in the search space according to the first information.
  • the candidate location can reduce the number of blind detections of the terminal device in each search space.
  • the preset candidate location may be a network device configuration, or may be calculated by the terminal device according to a preset formula, or may be an agreed candidate location in the protocol.
  • the terminal device in the foregoing embodiments performs blind detection in at least two search spaces according to the first information, include:
  • the terminal device performs blind detection in a preset search space indicated by the preset search space information in at least two search spaces.
  • the terminal device when there are at least two search spaces, the terminal device performs blind detection only in the preset search space, thereby reducing the number of blind detections.
  • the number of preset search spaces may be one.
  • the number of preset search spaces may also be More than one.
  • the preset search space may be a network device configuration, or may be calculated by the terminal device according to a preset formula, or may be an agreed search space in the protocol.
  • the preset search space is a common search space, that is, the terminal only overlaps. Blind detection of public search spaces.
  • the terminal device in the foregoing embodiments performs blindness in the at least two search spaces according to the first information. Detection, including:
  • the terminal device performs blind detection in the at least two search spaces according to the priority information.
  • the terminal device preferentially detects part of the search space.
  • the terminal device performs blind detection in other search spaces.
  • the first information may include priority information of all the search spaces, and may only include the priority of the partial search space, for example, only the priority of the search space with higher priority, or only the lower priority.
  • the priority of the search space may be calculated by the terminal device according to a preset formula.
  • the terminal device performs blind detection in at least two search spaces in order of priority from highest to lowest until the downlink control information is detected or the number of blind detection reaches the maximum number of blind detections of the terminal device or the terminal device completes at least Blind detection of two search spaces.
  • each search space may be blindly detected in order from highest to lowest priority.
  • the terminal device detects the DCI, the blind detection is stopped, or when the number of blind detections performed by the terminal device reaches the maximum number of blind detections of the terminal device, the blind detection is stopped, or when the number of blind detections performed by the terminal device does not reach the terminal device The maximum number of blind detections, but the terminal device has completed blind detection of each search space to stop blind detection.
  • the terminal device is configured according to at least one of the following: type information of the search space, a period of the search space, subcarrier spacing information of the search space, symbol information occupied by the search space, and a starting position of the search space in the time slot. Information to determine the priority of the search space.
  • the priority of the search space may be directly carried in the first information.
  • the terminal device may determine, according to the type information of the search space, the period of the search space, the subcarrier spacing information of the search space, the symbol information occupied by the search space, and the start location information of the search space in the time slot. The priority of the space.
  • the terminal device may also determine the priority of the search space according to the effective time of the configuration signaling of the search space.
  • the search space type is a common search space
  • its priority can be set to be higher than the priority of the dedicated search space.
  • the priority of the search space occupying the mini-slot can be set to a higher priority.
  • the priority of the long search space may be set to be higher than the priority of the short search space.
  • the terminal device in the foregoing embodiments performs blind detection in the at least two search spaces according to the first information, where include:
  • the terminal device blindly detects candidate positions of the preset aggregation level in at least two search spaces.
  • the type of the aggregation level included in the search space is directly proportional to the number of blind detections that the terminal device needs to perform within the search space. Therefore, when there are at least two search spaces, the terminal device may only blindly detect the partial aggregation.
  • the candidate position of the level thereby reducing the number of blind detections.
  • the preset aggregation level may be a network device configuration, or may be calculated by the terminal device according to a preset formula, or may be an agreed aggregation level in the protocol, for example, the preset aggregation level is 8, that is, the terminal only aggregates at the time of overlap. Blind detection is performed at candidate positions of level 8.
  • the terminal device in the foregoing embodiments performs the blinding in the at least two search spaces according to the first information. Detection, including:
  • the terminal device blindly detects the downlink control information in the at least two search spaces with the aligned downlink control information length.
  • the network device may adopt a padding manner to adjust to the same length when transmitting to the terminal device, so that the terminal device detects only the same length of DCI during blind detection.
  • the length alignment status information of the downlink control information is used to indicate that the length of the downlink control information is aligned with the longest downlink control information in the downlink control information; or the length of the downlink control information in the fallback format is configured to a format The length of the downlink control information is aligned.
  • the length of the shorter length downlink control information may be aligned to the length of the longer length downlink control information.
  • the fallback format may be padding to the configuration format; if the format length is smaller than the fallback format, the configuration format may be padding to the fallback format.
  • the terminal device determines that only one search space exists in the preset time range, the DCI of multiple lengths does not need to be filled, and the original DCI length may still be used to save the overhead of the downlink control information.
  • the method for transmitting downlink control information further includes:
  • the terminal device receives the first information sent by the network device.
  • the first information may also be information pre-stored in the terminal device.
  • the embodiment of the present application further provides a method for transmitting downlink control information.
  • 5 is a schematic flowchart of a method for transmitting downlink control information according to Embodiment 2 of the present application.
  • the terminal device Before performing blind detection, the terminal device needs to determine that the terminal device determines that the sum of blind detection times corresponding to each search space is greater than the terminal. The maximum number of blind detections of the device.
  • the method for transmitting downlink control information provided by the embodiment of the present application includes:
  • the terminal device determines that at least two search spaces exist within a preset time period.
  • the terminal device determines that the sum of the number of blind detections corresponding to the at least two search spaces is greater than the maximum number of blind detections of the terminal device.
  • the terminal device when the terminal device determines that there are at least two search spaces, the terminal device needs to first determine the sum of the blind detection times corresponding to the at least two search spaces, and compare the sum of the blind detection times with the maximum number of blind detection times of the terminal device.
  • the blind detection may be directly performed.
  • the sum of the blind detection times corresponding to each search space is greater than the maximum number of blind detections of the terminal device, Then, blind detection is performed according to the first information.
  • the terminal device performs blind detection in at least two search spaces according to the first information.
  • S501 and S503 in this embodiment are the same as S301 and S302 in the embodiment shown in FIG. 3, and details are not described herein again.
  • the method for transmitting downlink control information includes: determining, by the terminal device, that at least two search spaces exist within a preset time period, and determining, by the terminal device, that the sum of blind detection times corresponding to the at least two search spaces is greater than that of the terminal device The maximum number of blind detections, the terminal device performs blind detection in at least two search spaces according to the first information.
  • the terminal device before the blind detection is performed in the at least two search spaces according to the first information, the terminal device first confirms that the sum of the blind detection times corresponding to the search spaces at the overlapping time is greater than the maximum blind detection times of the terminal device, and avoids When the sum of the blind detection times of the search spaces is not greater than the maximum number of blind detections of the terminal device, the blind detection is still performed according to the first information, which causes waste of the blind detection capability of the terminal device.
  • the embodiment of the present application further provides a method for acquiring the number of blind detections.
  • CA Component Aggregation
  • MIMO Multiple-Input Multiple-Output
  • CoMP Coordinated Multi-Point
  • MIMO Multiple-Input Multiple-Output
  • CoMP Coordinated Multi-Point
  • n is an integer, subcarrier spacing from 3.75 kHz, 7.5 kHz up to 480 kHz, up to 8 .
  • the subcarrier spacing changes, there are multiple symbol lengths and time slot lengths in the 5G NR.
  • the symbol length becomes smaller, the normal time slot is fixed to include 14 symbols, and the normal time slot length becomes shorter; one subframe is fixed to 1 millisecond, and the normal time slot included in one subframe The number has increased.
  • the use of the symbol in one time slot may be composed of at least one of a downlink transmission DL, a guard interval (GP), an uplink transmission UL, and the like. Therefore, the time slots in the 5G can be divided into at least DL only slot, DL centric slot, UL centric slot, UL only slot, etc., depending on the purpose of the symbols in the time slot.
  • the number of uplink symbols/downlink symbols/protection interval symbols included in different time slots is different.
  • the time slots may also have different time slot types. Different time slot types include different numbers of symbols, such as mini slots (Mini slot), and the symbols included in the mini slot are less than 14 (eg, 2 symbols, 4 symbols, 7 symbols, etc.), the normal slot (Slot) contains 14 symbols.
  • each communication device in the 5G NR usually works in a high frequency scenario and has a severe fading.
  • a slot aggregation technology is introduced in the 5G NR, that is, multiple time slots can be allocated to the same terminal device. It can be used for uplink data scheduling, and can also be used for downlink data scheduling. It can also be used for uplink control information (UCI) repetition.
  • UCI uplink control information
  • the DCI design in order to support more flexibility in the 5G NR, a lot of information is turned into a dynamic indication, but if too much information needs to be carried in the DCI, the total overhead of the DCI is too large. Therefore, it is considered that the presence/absence of certain fields in the DCI is configured by the semi-static RRC signaling, and the length and the number of the fields can also be configured through RRC, thereby improving flexibility and avoiding DCI having one. Fixed a large overhead. However, the length of the DCI is more flexible, and the number of blind detections that the terminal device needs to perform is increased.
  • FIG. 6 is a schematic flowchart diagram of a method for acquiring a blind detection frequency according to Embodiment 1 of the present application. As shown in FIG. 6, the method for obtaining the number of blind detections includes:
  • the terminal device receives second information sent by the network device, where the second information includes search space configuration information.
  • the configuration information of the search space is sent to the terminal device, and the configuration information may be an attribute information of the search space, such as type information of the search space, and an aggregation included in the search space. Level and other information.
  • the terminal device determines, according to the search space configuration information, a maximum number of blind detections that can be performed by the terminal device in the search space indicated by the search space configuration information.
  • the terminal device determines, according to the configuration information of the received search space, what the terminal device can perform in the search space. Maximum number of blind detections.
  • An embodiment of the present application provides a method for acquiring a blind detection number, including: receiving, by a terminal device, second information sent by a network device, where the second information includes search space configuration information, and determining, by the terminal device, the terminal device in the search space according to the search space configuration information. The maximum number of blind detections that can be performed in the search space indicated by the configuration information.
  • the terminal device determines the maximum number of blind detections of the terminal device according to the configuration information of the search space, and obtains the maximum number of blind detection times of the terminal device.
  • the manner in which the terminal device determines the maximum number of blind detections according to the search space configuration information may include the following methods:
  • the search space configuration information includes at least one of the following: subcarrier spacing information, slot type information, symbol number information, bandwidth information, resource block number information, resource unit group number information, and resources.
  • the unit group binding number information, the control channel element number information, the search space type information, the aggregation level type information included in the search space, the length type information of the downlink control information in the search space, the mini slot indication information, or the aggregation slot includes The number of time slots information.
  • the terminal device device considers that the larger the subcarrier spacing is, the smaller the symbol length is. Therefore, as the subcarrier spacing increases, the blind detection times of the terminal device become smaller. For example, when the subcarrier spacing is 15 kHz, the number of blind detections of the terminal device is 44, and when the subcarrier spacing is increased to 30 kHz, the number of blind detections of the terminal device in one slot can be reduced to 22, when the subcarrier spacing is When the frequency is increased to 60 kHz, the number of blind detections of the terminal device in one time slot can be reduced to 11. When the subcarrier spacing is increased to 120 kHz, the number of blind detections of the terminal device in one time slot can be reduced to 5. Therefore, the total number of blind detections that can be performed by the terminal device within a fixed period of 1 ms is maintained 44 times.
  • the maximum number of blind detections of the terminal device on the mini time slot is reduced.
  • the slot type includes a mini slot
  • the maximum number of blind detections of the terminal device on the normal time slot is reduced.
  • the terminal device blindly detects the common search space on the normal time slot.
  • the maximum number of blind detections of the terminal device on the normal time slot is reduced.
  • the terminal device increases the number of blind detections on the minislot.
  • the terminal device when the number of CORESET symbols of a normal time slot is small, the maximum number of blind detections of the terminal device on the normal time slot is reduced. When the number of CORESET symbols of the normal time slot is small, the terminal device increases the number of blind detections on the mini time slot.
  • the terminal device determines, according to the search space configuration information, the maximum number of blind detections that the terminal device can perform in the search space indicated by the search space configuration information, including:
  • the terminal device determines, according to the search space configuration information and the multi-antenna configuration information of the terminal device, the maximum number of blind detections that can be performed by the terminal device in the search space indicated by the search space configuration information; wherein the multi-antenna configuration information includes at least the following One: the number of antennas, the number of codewords, and the number of layers.
  • the terminal device determines, according to the search space configuration information, the maximum number of blind detections that the terminal device can perform in the search space indicated by the search space configuration information, including:
  • the terminal device determines the maximum number of blind detections that the terminal device can perform at each beam and/or transmission point according to the number of beams and/or transmission points that the terminal device needs to monitor, and the search space configuration information.
  • the terminal device needs to monitor multiple beams or transmission points.
  • the maximum number of blind detections of the terminal device may be the maximum number of blind detection X beams/transmission points.
  • the terminal device can also evenly distribute the maximum number of blind detections to each beam or transmission point.
  • the terminal device determines, according to the search space configuration information, the maximum number of blind detections that the terminal device can perform in the search space indicated by the search space configuration information, including:
  • the terminal device determines, according to the aggregated carrier number information and the search space configuration information, the maximum number of blind detections that can be performed by the terminal device in the search space on each carrier.
  • the terminal device needs to monitor the search space on multiple carriers.
  • the maximum number of blind detections of the terminal device may be the maximum number of blind detections X number of aggregated carriers.
  • the terminal device can also equally distribute the maximum number of blind detections to each carrier.
  • the embodiment of the present application further provides a method for acquiring the number of blind detections.
  • the method for obtaining the number of blind detections before the terminal device determines the number of blind detections according to the search space configuration information, the method for obtaining the number of blind detections further includes:
  • the terminal device sends the network device the maximum number of blind detections that the terminal device can support.
  • the terminal device can also report its maximum blind detection capability to the network device, so as to prevent the total number of candidate locations of the terminal device requiring blind detection from exceeding the maximum number of blind detections of the terminal device.
  • An embodiment of the present application further provides a method for transmitting downlink control information, which is applied to a network device side, and has the same or similar technical features corresponding to the method for transmitting downlink control information on the terminal device side. This will not be repeated here.
  • FIG. 7 is a schematic flowchart of a method for transmitting downlink control information according to Embodiment 3 of the present application. As shown in FIG. 7, the method for transmitting downlink control information includes:
  • the network device determines downlink control information to be sent.
  • the network device sends downlink control information in at least two search spaces within a preset time period according to the first information.
  • the first information is used to indicate that the terminal device receives downlink control information in the at least two search spaces.
  • the period of any two of the at least two search spaces is different, or the period and the offset are the same.
  • the first information includes at least one of the following:
  • the first information includes the length information of the downlink control information
  • the network device sends the downlink control information in the at least two search spaces according to the first information, including:
  • the network device transmits downlink control information of a length indicated by the length information in at least two search spaces.
  • the length information of the downlink control information is any one of the following:
  • the minimum length value of the length of the downlink control information the maximum length value of the downlink control information length, the length value of the back-off format downlink control information, or the length value of the preset downlink control information.
  • the first information includes the priority information of the at least one search space
  • the network device sends the downlink control information in the at least two search spaces according to the first information, including:
  • the network device sends downlink control information in at least two search spaces according to the priority information.
  • the method further includes:
  • the network device determines the search according to at least one of the following: the type information of the search space, the period of the search space, the subcarrier spacing information of the search space, the symbol information occupied by the search space, and the start location information of the search space in the time slot.
  • the priority of the space is the following: the type information of the search space, the period of the search space, the subcarrier spacing information of the search space, the symbol information occupied by the search space, and the start location information of the search space in the time slot. The priority of the space.
  • the first information includes the length alignment status information of the downlink control information
  • the network device sends the downlink control information in the at least two search spaces according to the first information, including:
  • the network device sends the aligned downlink control information in at least two search spaces.
  • the length alignment status information of the downlink control information is used to indicate that the length of the downlink control information is aligned with the longest downlink control information in the downlink control information; or the length of the downlink control information of the fallback format is configured to be downlink control of the configuration format. The length of the information is aligned.
  • the method for transmitting downlink control information further includes:
  • the network device sends the first information to the terminal device.
  • the method before the network device sends the downlink control information in the at least two search spaces according to the first information, the method further includes:
  • the network device determines that the sum of the maximum number of blind detections required by the terminal device in the at least two search spaces is greater than the maximum number of blind detections of the terminal device.
  • the first information includes the preset candidate location information
  • the network device sends the downlink control information in the at least two search spaces according to the first information, including:
  • the network device transmits downlink control information at a candidate location indicated by the preset candidate location information in the at least two search spaces.
  • the first information includes the preset search space information
  • the network device sends the downlink control information in the at least two search spaces according to the first information, including:
  • the network device transmits downlink control information in a preset search space indicated by the preset search space information in the at least two search spaces.
  • the first information includes the preset aggregation level information
  • the network device sends the downlink control information in the at least two search spaces according to the first information, including:
  • the network device transmits downlink control information at candidate locations of preset aggregation levels in at least two search spaces.
  • An embodiment of the present application further provides a method for acquiring the number of blind detections, which is applied to the network device side, and has the same or similar technical features corresponding to the method for acquiring the number of blind detection times on the terminal device side. This will not be repeated here.
  • FIG. 8 is a schematic flowchart of a method for acquiring a blind detection number according to Embodiment 2 of the present application. As shown in FIG. 8, the method for obtaining the number of blind detections includes:
  • the network device receives the maximum number of blind detections supported by the terminal device sent by the terminal device.
  • the network device determines, according to the maximum number of blind detections and the configuration information of the search space configured by the network device for the terminal device, the maximum number of blind detections that the terminal device can perform in the search space.
  • the configuration information of the search space includes at least one of the following:
  • Subcarrier spacing information slot type information, symbol number information, bandwidth information, resource block number information, resource unit group number information, resource unit group binding number information, control channel element number information, search space type information, search space
  • the network device determines, according to the maximum number of blind detections and the configuration information of the search space configured by the network device for the terminal device, the maximum number of blind detections that the terminal device can perform in the search space, including:
  • the network device determines, according to the maximum number of blind detections, the configuration information, and the multi-antenna configuration information of the terminal device, the maximum number of blind detections that the terminal device can perform in the search space.
  • the multi-antenna configuration information includes at least one of the following: an antenna Number, number of code words, and number of layers.
  • the network device determines, according to the maximum number of blind detections and the configuration information of the search space configured by the network device for the terminal device, the maximum number of blind detections that the terminal device can perform in the search space, including:
  • the network device determines the maximum number of blind detections that the terminal device can perform at each beam and/or transmission point according to the maximum number of blind detections, the number of beams and/or transmission points that the terminal device needs to monitor, and configuration information.
  • the network device determines, according to the maximum number of blind detections and the configuration information of the search space configured by the network device for the terminal device, the maximum number of blind detections that the terminal device can perform in the search space, including:
  • the network device determines, according to the maximum number of blind detections, the number of aggregated carriers, and the configuration information, the maximum number of blind detections that can be performed by the terminal device in the search space on each carrier.
  • An embodiment of the present application further provides a downlink control information transmission apparatus, which is configured to perform the downlink control information transmission method on the terminal device side in the foregoing embodiment, and has the same technical features and technical effects, and the application is no longer Narration.
  • FIG. 9 is a schematic structural diagram of a downlink control information transmission apparatus according to Embodiment 1 of the present application.
  • the transmission device of the downlink control information may be implemented by using software, hardware, or a combination of software and hardware.
  • the transmission device of the downlink control information includes:
  • the search space detecting module 901 is configured to determine that at least two search spaces exist within a preset time period
  • the blind detection module 902 is configured to perform blind detection in at least two search spaces according to the first information, where the first information is used to indicate that the device performs blind detection in at least two search spaces, and the device is in at least two search spaces.
  • the sum of the number of blind detections within the device does not exceed the maximum number of blind detections of the device within a preset time period.
  • the period of any two of the at least two search spaces is different, or the period and the offset are the same.
  • the first information includes at least one of the following:
  • the first information includes length information of the downlink control information
  • the blind detection module 902 is specifically configured to blindly detect the downlink control information of the length indicated by the length information in the at least two search spaces.
  • the length information of the downlink control information is any one of the following:
  • the minimum length value of the length of the downlink control information the maximum length value of the downlink control information length, the length value of the back-off format downlink control information, or the length value of the preset downlink control information.
  • the first information includes priority information of the at least one search space; the blind detection module 902 is specifically configured to perform blind detection in the at least two search spaces according to the priority information.
  • the blind detection module 902 is configured to perform blind detection in at least two search spaces in order of priority from highest to lowest until the downlink control information is detected or the number of blind detection reaches the maximum number of blind detections of the device or The device performs blind detection of at least two search spaces.
  • FIG. 10 is a schematic structural diagram of a resource processing apparatus according to Embodiment 2 of the present application.
  • the transmission device of the downlink control information further includes:
  • the priority obtaining module 903 is configured to: according to at least one of the following: type information of the search space, a period of the search space, subcarrier spacing information of the search space, symbol information occupied by the search space, and a search space.
  • the starting position information in the time slot determines the priority of the search space.
  • the first information includes the length alignment state information of the downlink control information.
  • the blind detection module 902 is specifically configured to: when the first information indicates that the downlink control information length is aligned, the downlink control information is aligned in the at least two search spaces. Length blind detection downlink control information.
  • the length alignment status information of the downlink control information is used to indicate that the length of the downlink control information is aligned with the longest downlink control information in the downlink control information; or the length of the downlink control information of the fallback format is configured to be downlink control of the configuration format. The length of the information is aligned.
  • the transmission device of the downlink control information further includes: a receiving module 904, configured to receive the first information sent by the network device.
  • the blind detection module 902 is further configured to: determine that a sum of blind detection times corresponding to the at least two search spaces is greater than a maximum number of blind detections of the device.
  • the first information includes preset candidate location information.
  • the blind detection module 902 is specifically configured to perform blind detection at a candidate location indicated by the preset candidate location information in the at least two search spaces.
  • the first information includes preset search space information
  • the blind detection module 902 is configured to perform blind detection in a preset search space indicated by the preset search space information in the at least two search spaces.
  • the first information includes preset aggregation level information
  • the blind detection module 902 is specifically configured to blindly detect candidate locations of the preset aggregation level in the at least two search spaces.
  • An embodiment of the present application further provides a device for acquiring the number of blind detections, which is used to perform the method for acquiring the number of blind detections on the terminal device side in the foregoing embodiment, and has the same technical features and technical effects. Narration.
  • FIG. 11 is a schematic structural diagram of an apparatus for acquiring a blind detection number according to Embodiment 1 of the present application.
  • the device for acquiring the number of blind detections may be implemented by software, hardware, or a combination of software and hardware. As shown in FIG. 11, the device for acquiring the number of blind detections includes:
  • the receiving module 1101 is configured to receive second information sent by the network device, where the second information includes search space configuration information.
  • the blind detection number acquisition module 1102 is configured to determine, according to the search space configuration information, the maximum number of blind detections that the device can perform in the search space indicated by the search space configuration information.
  • the search space configuration information includes at least one of the following:
  • Subcarrier spacing information slot type information, symbol number information, bandwidth information, resource block number information, resource unit group number information, resource unit group binding number information, control channel element number information, search space type information, search space
  • the blind detection number acquisition module 1102 is specifically configured to determine, according to the search space configuration information and the multi-antenna configuration information of the device, the maximum number of blind detections that the device can perform in the search space indicated by the search space configuration information;
  • the multi-antenna configuration information includes at least one of the following: an antenna number, a codeword number, and a layer number.
  • the blind detection number acquisition module 1102 is specifically configured to determine, according to the number of beams and/or transmission points that the device needs to monitor, and the search space configuration information, to determine the maximum blindness that the device can perform at each beam and/or transmission point. Number of tests.
  • the blind detection number obtaining module 1102 is specifically configured to determine, according to the aggregated carrier number information and the search space configuration information, the maximum number of blind detections that can be performed by the device in the search space on each carrier.
  • the apparatus for acquiring the number of blind detections further includes:
  • the sending module 1103 is configured to send, to the network device, a maximum number of blind detections that the device can support.
  • An embodiment of the present application further provides a downlink control information transmission apparatus, which is configured to perform the downlink control information transmission method on the network device side in the foregoing embodiment, and has the same technical features and technical effects. Narration.
  • FIG. 12 is a schematic structural diagram of a downlink control information transmission apparatus according to Embodiment 3 of the present application.
  • the transmission device of the downlink control information may be implemented by using software, hardware, or a combination of software and hardware.
  • the downlink control information transmission apparatus includes:
  • the downlink control information obtaining module 1201 is configured to determine downlink control information to be sent.
  • the downlink control information sending module 1202 is configured to send, according to the first information, downlink control information in at least two search spaces in a preset time period;
  • the first information is used to instruct the terminal device to receive downlink control information in the at least two search spaces.
  • the period of any two of the at least two search spaces is different, or the period and the offset are the same.
  • the first information includes at least one of the following:
  • the first information includes the length information of the downlink control information
  • the downlink control information sending module 1202 is specifically configured to send the downlink control information of the length indicated by the length information in the at least two search spaces.
  • the length information of the downlink control information is any one of the following:
  • the minimum length value of the length of the downlink control information the maximum length value of the downlink control information length, the length value of the back-off format downlink control information, or the length value of the preset downlink control information.
  • the first information includes the priority information of the at least one search space; the downlink control information sending module 1202 is specifically configured to send the downlink control information in the at least two search spaces according to the priority information.
  • the downlink control information transmission device further includes:
  • the priority obtaining module 1203 is configured to: according to at least one of: type information of a search space, a period of a search space, subcarrier spacing information of a search space, symbol information occupied by a search space, and a search space in a time slot. Start position information to determine the priority of the search space.
  • the first information includes the length alignment status information of the downlink control information.
  • the downlink control information sending module 1202 is specifically configured to: when the first information indicates that the downlink control information length is aligned, send the aligned downlink in the at least two search spaces. Control information.
  • the length alignment status information of the downlink control information is used to indicate that the length of the downlink control information is aligned with the longest downlink control information in the downlink control information; or the length of the downlink control information of the fallback format is configured to be downlink control of the configuration format. The length of the information is aligned.
  • the downlink control information transmission device further includes:
  • the sending module 1204 is configured to send the first information to the terminal device.
  • the downlink control information sending module 1202 is further configured to: determine that the sum of the maximum number of blind detections that the terminal device needs to perform in the at least two search spaces is greater than the maximum number of blind detections of the terminal device.
  • the first information includes the preset candidate location information.
  • the downlink control information sending module 1202 is specifically configured to send the downlink control information at the candidate location indicated by the preset candidate location information in the at least two search spaces.
  • the first information includes the preset search space information
  • the downlink control information sending module 1202 is specifically configured to send the downlink control information in the preset search space indicated by the preset search space information in the at least two search spaces.
  • the first information includes the preset aggregation level information
  • the downlink control information sending module 1202 is specifically configured to send the downlink control information at the candidate location of the preset aggregation level in the at least two search spaces.
  • An embodiment of the present application further provides a device for acquiring the number of blind detections, which is used to perform the method for acquiring the number of blind detections on the network device side in the foregoing embodiment, and has the same technical features and technical effects. Narration.
  • FIG. 13 is a schematic structural diagram of an apparatus for acquiring a blind detection number according to Embodiment 2 of the present application.
  • the device for acquiring the number of blind detections may be implemented by software, hardware, or a combination of software and hardware. As shown in FIG. 13, the device for acquiring the number of blind detections includes:
  • the receiving module 1301 is configured to receive a maximum number of blind detections supported by the terminal device sent by the terminal device;
  • the maximum number of blind detection times acquisition module 1302 is configured to determine, according to the maximum number of blind detections and the configuration information of the search space configured by the device for the terminal device, the maximum number of blind detections that the terminal device can perform in the search space.
  • the configuration information of the search space includes at least one of the following:
  • Subcarrier spacing information slot type information, symbol number information, bandwidth information, resource block number information, resource unit group number information, resource unit group binding number information, control channel element number information, search space type information, search space
  • the maximum number of blind detection times acquisition module 1302 is specifically configured to determine, according to the maximum number of blind detections, configuration information, and multi-antenna configuration information of the terminal device, the maximum number of blind detections that the terminal device can perform in the search space;
  • the multi-antenna configuration information includes at least one of the following: the number of antennas, the number of codewords, and the number of layers.
  • the maximum blind detection number acquisition module 1302 is specifically configured to determine, according to the maximum number of blind detections, the number of beams and/or transmission points that the terminal device needs to monitor, and configuration information, determine the terminal device at each beam and/or transmission point. The maximum number of blind detections that can be performed.
  • the maximum number of blind detection times obtaining module 1302 is specifically configured to determine, according to the maximum number of blind detections, the number of aggregated carriers, and the configuration information, the maximum number of blind detections that can be performed by the terminal device in the search space on each carrier.
  • Another embodiment of the present application further provides a terminal device, which is used to perform the method for transmitting downlink control information in the foregoing embodiment.
  • a terminal device which is used to perform the method for transmitting downlink control information in the foregoing embodiment.
  • FIG. 14 is a schematic structural diagram of a terminal device according to Embodiment 1 of the present application.
  • the terminal device includes a transceiver 1401, a memory 1402, a processor 1403, and at least one communication bus 1404.
  • Communication bus 1404 is used to implement a communication connection between components.
  • Memory 1402 may include high speed random access memory, and may also include non-volatile memory, such as at least one disk storage, in which various programs may be stored for performing various processing functions and implementing the method steps of the present embodiments.
  • the processor 1403 is configured to execute a program stored in the memory 1402.
  • the transceiver 1401 may be a radio frequency processing module or a baseband processing module in the terminal device. Therein, a transceiver 1401 is coupled to the processor 1403.
  • the processor 1403 is configured to determine that at least two search spaces exist within a preset time period
  • the first information is used to indicate that the terminal device performs blind detection in at least two search spaces, and the number of blind detections of the terminal device in at least two search spaces The sum does not exceed the maximum number of blind detections of the terminal device within the preset time period.
  • the period of any two of the at least two search spaces is different, or the period and the offset are the same.
  • the first information includes at least one of the following:
  • the first information includes length information of the downlink control information
  • the processor 1403 is specifically configured to blindly detect the downlink control information of the length indicated by the length information in the at least two search spaces.
  • the length information of the downlink control information is any one of the following:
  • the minimum length value of the length of the downlink control information the maximum length value of the downlink control information length, the length value of the back-off format downlink control information, or the length value of the preset downlink control information.
  • the first information includes priority information of the at least one search space; the processor 1403 is specifically configured to perform blind detection in the at least two search spaces according to the priority information.
  • the processor 1403 is configured to perform blind detection in at least two search spaces in order of priority from highest to lowest until the downlink control information is detected or the number of blind detections reaches the maximum number of blind detections of the terminal device or The terminal device performs blind detection of at least two search spaces.
  • the processor 1403 is further configured to: according to at least one of: type information of the search space, a period of the search space, subcarrier spacing information of the search space, symbol information occupied by the search space, and a search space in the time slot.
  • the starting location information within the location determines the priority of the search space.
  • the first information includes length alignment state information of the downlink control information, where the processor 1403 is configured to: align the downlink control information length in the at least two search spaces when the first information indicates that the downlink control information length is aligned. Blindly detect downlink control information.
  • the length alignment status information of the downlink control information is used to indicate that the length of the downlink control information is aligned with the longest downlink control information in the downlink control information; or the length of the downlink control information of the fallback format is configured to be downlink control of the configuration format. The length of the information is aligned.
  • the terminal device further includes a transceiver 1401, configured to receive the first information sent by the network device.
  • the processor 1403 is further configured to: determine that the sum of the number of blind detections corresponding to the at least two search spaces is greater than the maximum number of blind detections of the terminal device.
  • the first information includes preset candidate location information
  • the processor 1403 is specifically configured to perform blind detection at a candidate location indicated by the preset candidate location information in the at least two search spaces.
  • the first information includes preset search space information
  • the processor 1403 is configured to perform blind detection in a preset search space indicated by the preset search space information in the at least two search spaces.
  • the first information includes preset aggregation level information
  • the processor 1403 is specifically configured to blindly detect candidate locations of the preset aggregation level in the at least two search spaces.
  • An embodiment of the present application further provides a terminal device for performing the method for acquiring the number of blind detections in the foregoing embodiments, which has the same or similar technical features and technical effects.
  • the terminal device includes:
  • the transceiver 1401 is configured to receive second information sent by the network device, where the second information includes search space configuration information.
  • the processor 1403 is configured to determine, according to the search space configuration information, a maximum number of blind detections that can be performed by the terminal device in the search space indicated by the search space configuration information.
  • the search space configuration information includes at least one of the following:
  • Subcarrier spacing information slot type information, symbol number information, bandwidth information, resource block number information, resource unit group number information, resource unit group binding number information, control channel element number information, search space type information, search space
  • the processor 1403 is configured to determine, according to the search space configuration information and the multi-antenna configuration information of the terminal device, the maximum number of blind detections that can be performed by the terminal device in the search space indicated by the search space configuration information;
  • the multi-antenna configuration information includes at least one of the following: the number of antennas, the number of codewords, and the number of layers.
  • the processor 1403 is configured to determine, according to the number of beams and/or transmission points that the terminal device needs to monitor, and the search space configuration information, to determine the maximum blind detection that the terminal device can perform at each beam and/or transmission point. frequency.
  • the processor 1403 is configured to determine, according to the aggregated carrier number information and the search space configuration information, a maximum number of blind detections that can be performed by the terminal device in a search space on each carrier.
  • the terminal device further includes:
  • the transceiver 1401 is configured to send, to the network device, a maximum number of blind detections that the terminal device can support.
  • Another aspect of the embodiment of the present application further provides a network device, where the method for transmitting downlink control information in the foregoing embodiment is performed.
  • the same technical features and technical effects are provided, and the details are not described herein again.
  • FIG. 15 is a schematic structural diagram of a network device according to Embodiment 1 of the present application.
  • the terminal device includes a transceiver 1501, a memory 1502, a processor 1503, and at least one communication bus 1504.
  • Communication bus 1504 is used to implement a communication connection between components.
  • Memory 1502 may include high speed random access memory, and may also include non-volatile memory, such as at least one disk storage, in which various programs may be stored for performing various processing functions and implementing the method steps of the present embodiments.
  • the processor 1503 is configured to execute a program stored in the memory 1502.
  • the transceiver 1501 may be a radio frequency processing module or a baseband processing module in the network device. Wherein transceiver 1501 is coupled to the processor 1503.
  • the processor 1503 is configured to determine downlink control information to be sent.
  • the period of any two of the at least two search spaces is different, or the period and the offset are the same.
  • the first information includes at least one of the following:
  • the first information includes length information of the downlink control information, where the processor 1503 is configured to send downlink control information of a length indicated by the length information in the at least two search spaces.
  • the length information of the downlink control information is any one of the following:
  • the minimum length value of the length of the downlink control information the maximum length value of the downlink control information length, the length value of the back-off format downlink control information, or the length value of the preset downlink control information.
  • the first information includes the priority information of the at least one search space; the processor 1503 is specifically configured to send the downlink control information in the at least two search spaces according to the priority information.
  • the processor 1503 is further configured to: according to at least one of: type information of a search space, a period of a search space, subcarrier spacing information of a search space, symbol information occupied by a search space, and a search space in a time slot.
  • the starting location information determines the priority of the search space.
  • the first information includes the length alignment state information of the downlink control information.
  • the processor 1503 is specifically configured to: when the first information indicates that the downlink control information length is aligned, send the aligned downlink control information in the at least two search spaces.
  • the length alignment status information of the downlink control information is used to indicate that the length of the downlink control information is aligned with the longest downlink control information in the downlink control information; or the length of the downlink control information of the fallback format is configured to be downlink control of the configuration format. The length of the information is aligned.
  • the network device further includes:
  • the transceiver 1501 is configured to send the first information to the terminal device.
  • the processor 1503 is further configured to: determine that the sum of the maximum number of blind detections that the terminal device needs to perform in the at least two search spaces is greater than the maximum number of blind detections of the terminal device.
  • the first information includes preset candidate location information.
  • the processor 1503 is specifically configured to send downlink control information at a candidate location indicated by the preset candidate location information in the at least two search spaces.
  • the first information includes preset search space information
  • the processor 1503 is configured to send downlink control information in a preset search space indicated by the preset search space information in the at least two search spaces.
  • the first information includes preset aggregation level information, where the processor 1503 is configured to send downlink control information at a candidate location of the preset aggregation level in the at least two search spaces.
  • a further aspect of the embodiments of the present application further provides a network end device, which performs the method for acquiring the number of blind detections in the foregoing embodiments, and has the same or similar technical features and technical effects.
  • the network device includes:
  • the transceiver 1501 is configured to receive a maximum number of blind detections supported by the terminal device sent by the terminal device.
  • the processor 1503 is configured to determine, according to the maximum number of blind detections and the configuration information of the search space configured by the network device for the terminal device, the maximum number of blind detections that the terminal device can perform in the search space.
  • the configuration information of the search space includes at least one of the following:
  • Subcarrier spacing information slot type information, symbol number information, bandwidth information, resource block number information, resource unit group number information, resource unit group binding number information, control channel element number information, search space type information, search space
  • the processor 1503 is specifically configured to determine, according to the maximum number of blind detections, the configuration information, and the multi-antenna configuration information of the terminal device, the maximum number of blind detections that the terminal device can perform in the search space; wherein, the multi-antenna configuration information It includes at least one of the following: the number of antennas, the number of codewords, and the number of layers.
  • the processor 1503 is configured to determine, according to the maximum number of blind detections, the number of beams and/or transmission points that the terminal device needs to monitor, and the configuration information, determine the maximum that the terminal device can perform at each beam and/or transmission point. The number of blind detections.
  • the processor 1503 is configured to determine, according to the maximum number of blind detections, the number of aggregated carriers, and the configuration information, the maximum number of blind detections that can be performed by the terminal device in the search space on each carrier.
  • the embodiment of the present application further provides a program, when executed by the processor, for performing the transmission method of the downlink control information on the terminal device side in the foregoing embodiment.
  • the embodiment of the present application also provides a program product, such as a computer readable storage medium, including the program as described above.
  • the embodiment of the present application further provides a computer readable storage medium, where the computer readable storage medium stores instructions, when executed on a computer, causing the computer to perform transmission of downlink control information on the terminal device side in the foregoing embodiment. method.
  • the embodiment of the present application further provides a program for executing the method for acquiring the number of blind detections on the terminal device side in the foregoing embodiment when executed by the processor.
  • the embodiment of the present application also provides a program product, such as a computer readable storage medium, including the program as described above.
  • the embodiment of the present application further provides a computer readable storage medium, where the computer readable storage medium stores instructions, when it is run on a computer, causing the computer to perform the acquisition of the number of blind detections on the terminal device side in the foregoing embodiment. method.
  • the embodiment of the present application further provides a program, when executed by the processor, for performing the transmission method of the downlink control information on the network device side in the foregoing embodiment.
  • Embodiments of the present application also provide a program product, such as a computer readable storage medium, including the program as described above.
  • the embodiment of the present application further provides a computer readable storage medium, where the computer readable storage medium stores instructions, when executed on a computer, causing the computer to perform transmission of downlink control information on the network device side in the foregoing embodiment. method.
  • the embodiment of the present application further provides a program for executing the method for acquiring the number of blind detections on the network device side in the foregoing embodiment when executed by the processor.
  • the embodiment of the present application also provides a program product, such as a computer readable storage medium, including the program as described above.
  • the embodiment of the present application further provides a computer readable storage medium, where the computer readable storage medium stores instructions, when it is run on a computer, causing the computer to perform the acquisition of the number of blind detections on the network device side in the foregoing embodiment. method.
  • each module of the above network device and terminal device is only a division of logical functions, and may be further divided in actual implementation, for example, multiple units or components may be combined or integrated. Go to another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

Abstract

本申请实施例提供一种下行控制信息的传输、盲检测次数的获取方法和装置。下行控制信息的传输方法包括：终端设备确定在预设时间段内存在至少两个搜索空间，终端设备根据第一信息，在至少两个搜索空间中进行盲检测，第一信息用于指示终端设备在至少两个搜索空间内进行盲检测，终端设备在至少两个搜索空间内的盲检测次数总和不超过终端设备在预设时间段内的最大盲检测次数。终端设备确定预设时间段内的搜索空间个数，针对搜索空间个数为至少两个的情况，根据第一信息进行盲检测，确保了终端设备在至少两个搜索空间内的盲检测次数总和不超过终端设备在预设时间段内的最大盲检测次数，也避免了终端设备的盲检测能力的浪费。

Description

下行控制信息的传输、盲检测次数的获取方法和装置
本申请要求于2017年10月20日提交中国专利局、申请号为201710986659.2、申请名称为“下行控制信息的传输、盲检测次数的获取方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术，尤其涉及一种下行控制信息的传输、盲检测次数的获取方法和装置。
背景技术
在传统长期演进(Long Term Evolution，LTE)通信系统中，终端设备在接收或发送数据之前，需要获取网络设备配置给该终端设备的下行控制信息。终端设备获取下行控制信息的方式为在搜索空间包括的多个候选位置中进行盲检测。LTE系统中，搜索空间通常占用每个子帧的前几个符号所对应的频域资源，终端设备周期性的在每个子帧的前几个符号进行盲检测。
与LTE通信系统不同的是，第五代新无线接入技术(5th Generation New Radio Access Technology，5G NR)中，网络设备通常为终端设备配置多个独立的搜索空间。每个搜索空间可以有不同的周期和偏移。终端设备根据配置的搜索空间的周期进行盲检测，因此可能存在多个搜索空间在同一时刻重叠的情况，终端设备此时需要盲检测至少两个搜索空间。
但是终端设备在预设时间段内的盲检测次数存在最大值，当终端设备在每个搜索空间所允许的盲检测次数均达到终端设备的最大盲检测次数时，在重叠时刻，终端设备在各搜索空间的总盲检测次数会超过终端设备所能达到的最大值。当终端设备在每个搜索空间所允许的盲检测次数较小，例如只达到终端设备的最大盲检测次数的一半、甚至三分之一等，则可避免重叠时刻终端设备在各搜索空间的总盲检测次数超过终端设备所能达到的最大值；但是，对于非重叠时刻，终端设备的盲检测能力则被浪费。传统的下行控制信息的传输方法不合理。
发明内容
本申请实施例提供一种下行控制信息的传输、盲检测次数的获取方法和装置，用于解决传统的下行控制信息的传输方法不合理的问题。
第一方面，本申请实施例提供一种下行控制信息的传输方法，应用于终端设备侧，包括：
终端设备确定在预设时间段内存在至少两个搜索空间；
所述终端设备根据第一信息，在所述至少两个搜索空间中进行盲检测；其中，所述第 一信息用于指示所述终端设备在所述至少两个搜索空间内进行盲检测，所述终端设备在所述至少两个搜索空间内的盲检测次数总和不超过所述终端设备在所述预设时间段内的最大盲检测次数。
在一种可能的实施方式中，所述至少两个搜索空间中的任意两个搜索空间的周期不同，或者，周期和偏移均相同。
在一种可能的实施方式中，所述第一信息包括如下中的至少一项：
下行控制信息的长度信息、预设候选位置信息、预设搜索空间信息、至少一个所述搜索空间的优先级信息、预设聚合等级信息、下行控制信息的长度对齐状态信息。
在一种可能的实施方式中，所述第一信息包括下行控制信息的长度信息；所述终端设备根据第一信息，在所述至少两个搜索空间中进行盲检测，包括：
所述终端设备在所述至少两个搜索空间中盲检测所述长度信息所指示的长度的下行控制信息。
在一种可能的实施方式中，所述下行控制信息的长度信息为如下中的任一项：
下行控制信息的长度中的最小长度值、下行控制信息的长度中的最大长度值、回退格式下行控制信息的长度值或预设的下行控制信息的长度值。
在一种可能的实施方式中，所述第一信息包括至少一个所述搜索空间的优先级信息；所述终端设备根据第一信息，在所述至少两个搜索空间中进行盲检测，包括：
所述终端设备根据所述优先级信息，在所述至少两个搜索空间中进行盲检测。
在一种可能的实施方式中，所述终端设备根据所述优先级信息，在所述至少两个搜索空间中进行盲检测，包括：
所述终端设备按优先级由高至低的顺序依次在所述至少两个搜索空间中进行盲检测直至检测到下行控制信息或盲检测次数达到所述终端设备的最大盲检测次数或所述终端设备完成对所述至少两个搜索空间的盲检测。
在一种可能的实施方式中，所述方法还包括：
所述终端设备根据如下中的至少一项：所述搜索空间的类型信息、所述搜索空间的周期、所述搜索空间的子载波间隔信息、所述搜索空间占用的符号信息、所述搜索空间在时隙内的起始位置信息，确定所述搜索空间的优先级。
在一种可能的实施方式中，所述第一信息包括下行控制信息的长度对齐状态信息；所述终端设备根据第一信息，在所述至少两个搜索空间中进行盲检测，包括：
所述终端设备在所述第一信息指示下行控制信息长度对齐时，在所述至少两个搜索空间中以对齐的下行控制信息长度盲检测下行控制信息。
在一种可能的实施方式中，所述下行控制信息的长度对齐状态信息，用于指示下行控制信息的长度向下行控制信息中长度最长的下行控制信息对齐；或者，回退格式下行控制信息的长度向配置格式下行控制信息的长度对齐。
在一种可能的实施方式中，所述方法还包括：
所述终端设备接收网络设备发送的第一信息。
在一种可能的实施方式中，所述终端设备根据第一信息，在所述至少两个搜索空间中进行盲检测之前，所述方法还包括：
所述终端设备确定所述至少两个搜索空间对应的盲检测次数之和大于所述终端设备 的最大盲检测次数。
在一种可能的实施方式中，第一信息包括预设候选位置信息；所述终端设备根据第一信息，在所述至少两个搜索空间中进行盲检测，包括：
所述终端设备在所述至少两个搜索空间中的所述预设候选位置信息指示的候选位置处进行盲检测。
在一种可能的实施方式中，第一信息包括预设搜索空间信息；所述终端设备根据第一信息，在所述至少两个搜索空间中进行盲检测，包括：
所述终端设备在所述至少两个搜索空间中的所预设搜索空间信息指示的预设搜索空间中进行盲检测。
在一种可能的实施方式中，所述第一信息包括预设聚合等级信息；所述终端设备根据第一信息，在所述至少两个搜索空间中进行盲检测，包括：
所述终端设备在所述至少两个搜索空间中盲检测所述预设聚合等级的候选位置。
第二方面，本申请实施例还提供一种盲检测次数的获取方法，应用于终端设备侧，包括：
终端设备接收网络设备发送的第二信息，所述第二信息包括搜索空间配置信息；
所述终端设备根据所述搜索空间配置信息，确定所述终端设备在所述搜索空间配置信息所指示的搜索空间内所能进行的最大盲检测次数。
在一种可能的实施方式中，所述搜索空间配置信息包括如下中的至少一项：
子载波间隔信息、时隙类型信息、符号数信息、带宽信息、资源块数信息、资源单元组数信息、资源单元组绑定数信息、控制信道元素数信息、所述搜索空间的类型信息、所述搜索空间包含的聚合级别种类信息、所述搜索空间中下行控制信息的长度种类信息、迷你时隙指示信息或聚合时隙所包括的时隙数量信息。
在一种可能的实施方式中，所述终端设备根据所述搜索空间配置信息，确定所述终端设备在所述搜索空间配置信息所指示的搜索空间内所能进行的最大盲检测次数，包括：
所述终端设备根据所述搜索空间配置信息和所述终端设备的多天线配置信息，确定所述终端设备在所述搜索空间配置信息所指示的搜索空间内所能进行的最大盲检测次数；其中，所述多天线配置信息包括如下中的至少一项：天线数、码字数和层数。
在一种可能的实施方式中，所述终端设备根据所述搜索空间配置信息，确定所述终端设备在所述搜索空间配置信息所指示的搜索空间内所能进行的最大盲检测次数，包括：
所述终端设备根据所述终端设备需监听的波束和/或传输点数目，以及所述搜索空间配置信息，确定所述终端设备在每个波束和/或传输点所能进行的最大盲检测次数。
在一种可能的实施方式中，所述终端设备根据所述搜索空间配置信息，确定所述终端设备在所述搜索空间配置信息所指示的搜索空间内所能进行的最大盲检测次数，包括：
所述终端设备根据聚合载波数目信息和所述搜索空间配置信息，确定所述终端设备在各载波上的搜索空间内所能进行的最大盲检测次数。
在一种可能的实施方式中，所述终端设备接收网络设备发送的第二信息之前，所述方法还包括：
所述终端设备向网络设备发送所述终端设备能够支持的最大盲检测次数。
第三方面，本申请实施例还提供一种下行控制信息的传输方法，应用于网络设备侧， 包括：
网络设备确定待发送的下行控制信息；
所述网络设备根据第一信息，在预设时间段内的至少两个搜索空间内发送下行控制信息；
其中，所述第一信息用于指示所述终端设备在所述至少两个搜索空间内接收下行控制信息。
在一种可能的实施方式中，所述至少两个搜索空间中的任意两个搜索空间的周期不同，或者，周期和偏移均相同。
在一种可能的实施方式中，所述第一信息包括如下中的至少一项：
下行控制信息的长度信息、预设候选位置信息、预设搜索空间信息、至少一个所述搜索空间的优先级信息、预设聚合等级信息、下行控制信息的长度对齐状态信息。
在一种可能的实施方式中，所述第一信息包括下行控制信息的长度信息；所述网络设备根据第一信息在所述至少两个搜索空间内发送下行控制信息，包括：
所述网络设备在所述至少两个搜索空间内发送所述长度信息所指示的长度的下行控制信息。
在一种可能的实施方式中，所述下行控制信息的长度信息为如下中的任一项：
下行控制信息的长度中的最小长度值、下行控制信息的长度中的最大长度值、回退格式下行控制信息的长度值或预设的下行控制信息的长度值。
在一种可能的实施方式中，所述第一信息包括至少一个所述搜索空间的优先级信息；所述网络设备根据第一信息在所述至少两个搜索空间内发送下行控制信息，包括：
所述网络设备根据所述优先级信息，在所述至少两个搜索空间内发送下行控制信息。
在一种可能的实施方式中，所述方法还包括：
所述网络设备根据如下中的至少一项：所述搜索空间的类型信息、所述搜索空间的周期、所述搜索空间的子载波间隔信息、所述搜索空间占用的符号信息、所述搜索空间在时隙内的起始位置信息，确定所述搜索空间的优先级。
在一种可能的实施方式中，所述第一信息包括下行控制信息的长度对齐状态信息；所述网络设备根据第一信息在所述至少两个搜索空间内发送下行控制信息，包括：
所述网络设备在所述第一信息指示下行控制信息长度对齐时，在所述至少两个搜索空间内发送对齐的下行控制信息。
在一种可能的实施方式中，所述下行控制信息的长度对齐状态信息，用于指示下行控制信息的长度向下行控制信息中长度最长的下行控制信息对齐；或者，回退格式下行控制信息的长度向配置格式下行控制信息的长度对齐。
在一种可能的实施方式中，所述方法还包括：
所述网络设备向所述终端设备发送所述第一信息。
在一种可能的实施方式中，所述网络设备根据第一信息在所述至少两个搜索空间内发送下行控制信息之前，所述方法还包括：
所述网络设备确定所述终端设备在所述至少两个搜索空间内所需进行的最大盲检测次数之和大于所述终端设备的最大盲检测次数。
在一种可能的实施方式中，第一信息包括预设候选位置信息；所述网络设备根据第一 信息在所述至少两个搜索空间内发送下行控制信息，包括：
所述网络设备在所述至少两个搜索空间中的所述预设候选位置信息指示的候选位置处发送下行控制信息。
在一种可能的实施方式中，第一信息包括预设搜索空间信息；所述网络设备根据第一信息在所述至少两个搜索空间内发送下行控制信息，包括：
所述网络设备在所述至少两个搜索空间中的所预设搜索空间信息指示的预设搜索空间中发送下行控制信息。
在一种可能的实施方式中，所述第一信息包括预设聚合等级信息；所述网络设备根据第一信息在所述至少两个搜索空间内发送下行控制信息，包括：
所述网络设备在所述至少两个搜索空间中的所述预设聚合等级的候选位置处发送下行控制信息。
第四方面，本申请实施例还提供一种盲检测次数的获取方法，应用于网络设备侧，所述方法包括：
网络设备接收终端设备发送的所述终端设备支持的最大盲检测次数；
所述网络设备根据所述最大盲检测次数和所述网络设备为所述终端设备配置的搜索空间的配置信息，确定所述终端设备在所述搜索空间内所能进行的最大盲检测次数。
在一种可能的实施方式中，所述搜索空间的配置信息包括如下中的至少一项：
子载波间隔信息、时隙类型信息、符号数信息、带宽信息、资源块数信息、资源单元组数信息、资源单元组绑定数信息、控制信道元素数信息、所述搜索空间的类型信息、所述搜索空间包含的聚合级别种类信息、所述搜索空间中下行控制信息的长度种类信息、迷你时隙指示信息或聚合时隙所包括的时隙数量信息。
在一种可能的实施方式中，所述网络设备根据所述最大盲检测次数和所述网络设备为所述终端设备配置的搜索空间的配置信息，确定所述终端设备在所述搜索空间内所能进行的最大盲检测次数，包括：
所述网络设备根据所述最大盲检测次数、所述配置信息和所述终端设备的多天线配置信息，确定所述终端设备在所述搜索空间内所能进行的最大盲检测次数；其中，所述多天线配置信息包括如下中的至少一项：天线数、码字数和层数。
在一种可能的实施方式中，所述网络设备根据所述最大盲检测次数和所述网络设备为所述终端设备配置的搜索空间的配置信息，确定所述终端设备在所述搜索空间内所能进行的最大盲检测次数，包括：
所述网络设备根据所述最大盲检测次数、所述终端设备需监听的波束和/或传输点数目以及所述配置信息，确定所述终端设备在每个波束和/或传输点所能进行的最大盲检测次数。
在一种可能的实施方式中，所述网络设备根据所述最大盲检测次数和所述网络设备为所述终端设备配置的搜索空间的配置信息，确定所述终端设备在所述搜索空间内所能进行的最大盲检测次数，包括：
所述网络设备根据所述最大盲检测次数、聚合载波数目信息和所述配置信息，确定所述终端设备在各载波上的搜索空间内所能进行的最大盲检测次数。
第五方面，本申请实施例还提供一种下行控制信息的传输装置，作为终端设备，执行上述第一方面的下行控制信息的传输方法，具有相同或相似的技术特征和技术效果。所述 装置包括：
搜索空间检测模块，用于确定在预设时间段内存在至少两个搜索空间；
盲检测模块，用于根据第一信息，在所述至少两个搜索空间中进行盲检测；其中，所述第一信息用于指示所述装置在所述至少两个搜索空间内进行盲检测，所述装置在所述至少两个搜索空间内的盲检测次数总和不超过所述装置在所述预设时间段内的最大盲检测次数。
在一种可能的实施方式中，所述至少两个搜索空间中的任意两个搜索空间的周期不同，或者，周期和偏移均相同。
在一种可能的实施方式中，所述第一信息包括如下中的至少一项：
下行控制信息的长度信息、预设候选位置信息、预设搜索空间信息、至少一个所述搜索空间的优先级信息、预设聚合等级信息、下行控制信息的长度对齐状态信息。
在一种可能的实施方式中，所述第一信息包括下行控制信息的长度信息；所述盲检测模块具体用于，在所述至少两个搜索空间中盲检测所述长度信息所指示的长度的下行控制信息。
在一种可能的实施方式中，所述下行控制信息的长度信息为如下中的任一项：
下行控制信息的长度中的最小长度值、下行控制信息的长度中的最大长度值、回退格式下行控制信息的长度值或预设的下行控制信息的长度值。
在一种可能的实施方式中，所述第一信息包括至少一个所述搜索空间的优先级信息；所述盲检测模块具体用于，根据所述优先级信息，在所述至少两个搜索空间中进行盲检测。
在一种可能的实施方式中，所述盲检测模块具体用于，按优先级由高至低的顺序依次在所述至少两个搜索空间中进行盲检测直至检测到下行控制信息或盲检测次数达到所述装置的最大盲检测次数或所述装置完成对所述至少两个搜索空间的盲检测。
在一种可能的实施方式中，所述装置还包括优先级获取模块，所述优先级获取模块用于，根据如下中的至少一项：所述搜索空间的类型信息、所述搜索空间的周期、所述搜索空间的子载波间隔信息、所述搜索空间占用的符号信息、所述搜索空间在时隙内的起始位置信息，确定所述搜索空间的优先级。
在一种可能的实施方式中，所述第一信息包括下行控制信息的长度对齐状态信息；所述盲检测模块具体用于，在所述第一信息指示下行控制信息长度对齐时，在所述至少两个搜索空间中以对齐的下行控制信息长度盲检测下行控制信息。
在一种可能的实施方式中，所述下行控制信息的长度对齐状态信息，用于指示下行控制信息的长度向下行控制信息中长度最长的下行控制信息对齐；或者，回退格式下行控制信息的长度向配置格式下行控制信息的长度对齐。
在一种可能的实施方式中，所述装置还包括接收模块，用于接收网络设备发送的第一信息。
在一种可能的实施方式中，所述盲检测模块还用于，确定所述至少两个搜索空间对应的盲检测次数之和大于所述装置的最大盲检测次数。
在一种可能的实施方式中，第一信息包括预设候选位置信息；所述盲检测模块具体用于，在所述至少两个搜索空间中的所述预设候选位置信息指示的候选位置处进行盲检测。
在一种可能的实施方式中，第一信息包括预设搜索空间信息；所述盲检测模块具体用 于，在所述至少两个搜索空间中的所预设搜索空间信息指示的预设搜索空间中进行盲检测。
在一种可能的实施方式中，所述第一信息包括预设聚合等级信息；所述盲检测模块具体用于，在所述至少两个搜索空间中盲检测所述预设聚合等级的候选位置。
第六方面，本申请实施例还提供一种盲检测次数的获取装置，作为终端设备，执行上述第二方面的盲检测次数的获取方法，具有相同或相似的技术特征和技术效果。所述装置包括：
接收模块，用于接收网络设备发送的第二信息，所述第二信息包括搜索空间配置信息；
盲检测次数获取模块，用于根据所述搜索空间配置信息，确定所述装置在所述搜索空间配置信息所指示的搜索空间内所能进行的最大盲检测次数。
在一种可能的实施方式中，所述搜索空间配置信息包括如下中的至少一项：
子载波间隔信息、时隙类型信息、符号数信息、带宽信息、资源块数信息、资源单元组数信息、资源单元组绑定数信息、控制信道元素数信息、所述搜索空间的类型信息、所述搜索空间包含的聚合级别种类信息、所述搜索空间中下行控制信息的长度种类信息、迷你时隙指示信息或聚合时隙所包括的时隙数量信息。
在一种可能的实施方式中，所述盲检测次数获取模块具体用于，根据所述搜索空间配置信息和所述装置的多天线配置信息，确定所述装置在所述搜索空间配置信息所指示的搜索空间内所能进行的最大盲检测次数；其中，所述多天线配置信息包括如下中的至少一项：天线数、码字数和层数。
在一种可能的实施方式中，所述盲检测次数获取模块具体用于，根据所述装置需监听的波束和/或传输点数目，以及所述搜索空间配置信息，确定所述装置在每个波束和/或传输点所能进行的最大盲检测次数。
在一种可能的实施方式中，所述盲检测次数获取模块具体用于，根据聚合载波数目信息和所述搜索空间配置信息，确定所述装置在各载波上的搜索空间内所能进行的最大盲检测次数。
在一种可能的实施方式中，所述装置还包括：
发送模块，用于向网络设备发送所述装置能够支持的最大盲检测次数。
第七方面，本申请实施例还提供一种下行控制信息的传输装置，作为网络设备，执行上述第三方面的下行控制信息的传输方法，具有相同或相似的技术特征和技术效果。所述装置包括：
下行控制信息获取模块，用于确定待发送的下行控制信息；
下行控制信息发送模块，用于根据第一信息，在预设时间段内的至少两个搜索空间内发送下行控制信息；
其中，所述第一信息用于指示所述终端设备在所述至少两个搜索空间内接收下行控制信息。
在一种可能的实施方式中，所述至少两个搜索空间中的任意两个搜索空间的周期不同，或者，周期和偏移均相同。
在一种可能的实施方式中，所述第一信息包括如下中的至少一项：
下行控制信息的长度信息、预设候选位置信息、预设搜索空间信息、至少一个所述搜索空间的优先级信息、预设聚合等级信息、下行控制信息的长度对齐状态信息。
在一种可能的实施方式中，所述第一信息包括下行控制信息的长度信息；所述下行控制信息发送模块具体用于，在所述至少两个搜索空间内发送所述长度信息所指示的长度的下行控制信息。
在一种可能的实施方式中，所述下行控制信息的长度信息为如下中的任一项：
下行控制信息的长度中的最小长度值、下行控制信息的长度中的最大长度值、回退格式下行控制信息的长度值或预设的下行控制信息的长度值。
在一种可能的实施方式中，所述第一信息包括至少一个所述搜索空间的优先级信息；所述下行控制信息发送模块具体用于，根据所述优先级信息，在所述至少两个搜索空间内发送下行控制信息。
在一种可能的实施方式中，所述装置还包括：
优先级获取模块，用于根据如下中的至少一项：所述搜索空间的类型信息、所述搜索空间的周期、所述搜索空间的子载波间隔信息、所述搜索空间占用的符号信息、所述搜索空间在时隙内的起始位置信息，确定所述搜索空间的优先级。
在一种可能的实施方式中，所述第一信息包括下行控制信息的长度对齐状态信息；所述下行控制信息发送模块具体用于，在所述第一信息指示下行控制信息长度对齐时，在所述至少两个搜索空间内发送对齐的下行控制信息。
在一种可能的实施方式中，所述下行控制信息的长度对齐状态信息，用于指示下行控制信息的长度向下行控制信息中长度最长的下行控制信息对齐；或者，回退格式下行控制信息的长度向配置格式下行控制信息的长度对齐。
在一种可能的实施方式中，所述装置还包括：
发送模块，用于向所述终端设备发送所述第一信息。
在一种可能的实施方式中，所述下行控制信息发送模块还用于，确定所述终端设备在所述至少两个搜索空间内所需进行的最大盲检测次数之和大于所述终端设备的最大盲检测次数。
在一种可能的实施方式中，第一信息包括预设候选位置信息；所述下行控制信息发送模块具体用于，在所述至少两个搜索空间中的所述预设候选位置信息指示的候选位置处发送下行控制信息。
在一种可能的实施方式中，第一信息包括预设搜索空间信息；所述下行控制信息发送模块具体用于，在所述至少两个搜索空间中的所预设搜索空间信息指示的预设搜索空间中发送下行控制信息。
在一种可能的实施方式中，所述第一信息包括预设聚合等级信息；所述下行控制信息发送模块具体用于，在所述至少两个搜索空间中的所述预设聚合等级的候选位置处发送下行控制信息。
第八方面，本申请实施例还提供一种盲检测次数的获取装置，作为网络设备，执行上述第四方面的盲检测次数的获取方法，具有相同或相似的技术特征和技术效果。所述装置包括：
接收模块，用于接收终端设备发送的所述终端设备支持的最大盲检测次数；
最大盲检测次数获取模块，用于根据所述最大盲检测次数和所述装置为所述终端设备配置的搜索空间的配置信息，确定所述终端设备在所述搜索空间内所能进行的最大盲检测 次数。
在一种可能的实施方式中，所述搜索空间的配置信息包括如下中的至少一项：
子载波间隔信息、时隙类型信息、符号数信息、带宽信息、资源块数信息、资源单元组数信息、资源单元组绑定数信息、控制信道元素数信息、所述搜索空间的类型信息、所述搜索空间包含的聚合级别种类信息、所述搜索空间中下行控制信息的长度种类信息、迷你时隙指示信息或聚合时隙所包括的时隙数量信息。
在一种可能的实施方式中，所述最大盲检测次数获取模块具体用于，根据所述最大盲检测次数、所述配置信息和所述终端设备的多天线配置信息，确定所述终端设备在所述搜索空间内所能进行的最大盲检测次数；其中，所述多天线配置信息包括如下中的至少一项：天线数、码字数和层数。
在一种可能的实施方式中，所述最大盲检测次数获取模块具体用于，根据所述最大盲检测次数、所述终端设备需监听的波束和/或传输点数目以及所述配置信息，确定所述终端设备在每个波束和/或传输点所能进行的最大盲检测次数。
在一种可能的实施方式中，所述最大盲检测次数获取模块具体用于，根据所述最大盲检测次数、聚合载波数目信息和所述配置信息，确定所述终端设备在各载波上的搜索空间内所能进行的最大盲检测次数。
第九方面，本申请实施例还提供一种终端设备，执行上述第一方面的下行控制信息的传输方法，具有相同或相似的技术特征和技术效果。终端设备包括：
处理器，用于确定在预设时间段内存在至少两个搜索空间；
根据第一信息，在所述至少两个搜索空间中进行盲检测；其中，所述第一信息用于指示所述终端设备在所述至少两个搜索空间内进行盲检测，所述终端设备在所述至少两个搜索空间内的盲检测次数总和不超过所述终端设备在所述预设时间段内的最大盲检测次数。
在一种可能的实施方式中，所述至少两个搜索空间中的任意两个搜索空间的周期不同，或者，周期和偏移均相同。
在一种可能的实施方式中，所述第一信息包括如下中的至少一项：
下行控制信息的长度信息、预设候选位置信息、预设搜索空间信息、至少一个所述搜索空间的优先级信息、预设聚合等级信息、下行控制信息的长度对齐状态信息。
在一种可能的实施方式中，所述第一信息包括下行控制信息的长度信息；所述处理器具体用于，在所述至少两个搜索空间中盲检测所述长度信息所指示的长度的下行控制信息。
在一种可能的实施方式中，所述下行控制信息的长度信息为如下中的任一项：
下行控制信息的长度中的最小长度值、下行控制信息的长度中的最大长度值、回退格式下行控制信息的长度值或预设的下行控制信息的长度值。
在一种可能的实施方式中，所述第一信息包括至少一个所述搜索空间的优先级信息；所述处理器具体用于，根据所述优先级信息，在所述至少两个搜索空间中进行盲检测。
在一种可能的实施方式中，所述处理器具体用于，按优先级由高至低的顺序依次在所述至少两个搜索空间中进行盲检测直至检测到下行控制信息或盲检测次数达到所述终端设备的最大盲检测次数或所述终端设备完成对所述至少两个搜索空间的盲检测。
在一种可能的实施方式中，所述处理器还用于，根据如下中的至少一项：所述搜索空间的类型信息、所述搜索空间的周期、所述搜索空间的子载波间隔信息、所述搜索空间占 用的符号信息、所述搜索空间在时隙内的起始位置信息，确定所述搜索空间的优先级。
在一种可能的实施方式中，所述第一信息包括下行控制信息的长度对齐状态信息；所述处理器具体用于，在所述第一信息指示下行控制信息长度对齐时，在所述至少两个搜索空间中以对齐的下行控制信息长度盲检测下行控制信息。
在一种可能的实施方式中，所述下行控制信息的长度对齐状态信息，用于指示下行控制信息的长度向下行控制信息中长度最长的下行控制信息对齐；或者，回退格式下行控制信息的长度向配置格式下行控制信息的长度对齐。
在一种可能的实施方式中，所述终端设备还包括接收器，用于接收网络设备发送的第一信息。
在一种可能的实施方式中，所述处理器还用于，确定所述至少两个搜索空间对应的盲检测次数之和大于所述终端设备的最大盲检测次数。
在一种可能的实施方式中，第一信息包括预设候选位置信息；所述处理器具体用于，在所述至少两个搜索空间中的所述预设候选位置信息指示的候选位置处进行盲检测。
在一种可能的实施方式中，第一信息包括预设搜索空间信息；所述处理器具体用于，在所述至少两个搜索空间中的所预设搜索空间信息指示的预设搜索空间中进行盲检测。
在一种可能的实施方式中，所述第一信息包括预设聚合等级信息；所述处理器具体用于，在所述至少两个搜索空间中盲检测所述预设聚合等级的候选位置。
第十方面，本申请实施例还提供一种终端设备，执行上述第二方面的盲检测次数的获取方法，具有相同或相似的技术特征和技术效果。终端设备包括：
接收器，用于接收网络设备发送的第二信息，所述第二信息包括搜索空间配置信息；
处理器，用于根据所述搜索空间配置信息，确定所述终端设备在所述搜索空间配置信息所指示的搜索空间内所能进行的最大盲检测次数。
在一种可能的实施方式中，所述搜索空间配置信息包括如下中的至少一项：
子载波间隔信息、时隙类型信息、符号数信息、带宽信息、资源块数信息、资源单元组数信息、资源单元组绑定数信息、控制信道元素数信息、所述搜索空间的类型信息、所述搜索空间包含的聚合级别种类信息、所述搜索空间中下行控制信息的长度种类信息、迷你时隙指示信息或聚合时隙所包括的时隙数量信息。
在一种可能的实施方式中，所述处理器具体用于，根据所述搜索空间配置信息和所述终端设备的多天线配置信息，确定所述终端设备在所述搜索空间配置信息所指示的搜索空间内所能进行的最大盲检测次数；其中，所述多天线配置信息包括如下中的至少一项：天线数、码字数和层数。
在一种可能的实施方式中，所述处理器具体用于，根据所述终端设备需监听的波束和/或传输点数目，以及所述搜索空间配置信息，确定所述终端设备在每个波束和/或传输点所能进行的最大盲检测次数。
在一种可能的实施方式中，所述处理器具体用于，根据聚合载波数目信息和所述搜索空间配置信息，确定所述终端设备在各载波上的搜索空间内所能进行的最大盲检测次数。
在一种可能的实施方式中，所述终端设备还包括：
发送器，用于向网络设备发送所述终端设备能够支持的最大盲检测次数。
第十一方面，本申请实施例还提供一种网络设备，执行上述第三方面的下行控制信息 的传输方法，具有相同或相似的技术特征和技术效果。网络设备包括：
处理器，用于用于确定待发送的下行控制信息；
用于根据第一信息，在预设时间段内的至少两个搜索空间内发送下行控制信息；
其中，所述第一信息用于指示所述终端设备在所述至少两个搜索空间内接收下行控制信息。
在一种可能的实施方式中，所述至少两个搜索空间中的任意两个搜索空间的周期不同，或者，周期和偏移均相同。
在一种可能的实施方式中，所述第一信息包括如下中的至少一项：
下行控制信息的长度信息、预设候选位置信息、预设搜索空间信息、至少一个所述搜索空间的优先级信息、预设聚合等级信息、下行控制信息的长度对齐状态信息。
在一种可能的实施方式中，所述第一信息包括下行控制信息的长度信息；所述处理器具体用于，在所述至少两个搜索空间内发送所述长度信息所指示的长度的下行控制信息。
在一种可能的实施方式中，所述下行控制信息的长度信息为如下中的任一项：
下行控制信息的长度中的最小长度值、下行控制信息的长度中的最大长度值、回退格式下行控制信息的长度值或预设的下行控制信息的长度值。
在一种可能的实施方式中，所述第一信息包括至少一个所述搜索空间的优先级信息；所述处理器具体用于，根据所述优先级信息，在所述至少两个搜索空间内发送下行控制信息。
在一种可能的实施方式中，所述处理器还用于根据如下中的至少一项：所述搜索空间的类型信息、所述搜索空间的周期、所述搜索空间的子载波间隔信息、所述搜索空间占用的符号信息、所述搜索空间在时隙内的起始位置信息，确定所述搜索空间的优先级。
在一种可能的实施方式中，所述第一信息包括下行控制信息的长度对齐状态信息；所述处理器具体用于，在所述第一信息指示下行控制信息长度对齐时，在所述至少两个搜索空间内发送对齐的下行控制信息。
在一种可能的实施方式中，所述下行控制信息的长度对齐状态信息，用于指示下行控制信息的长度向下行控制信息中长度最长的下行控制信息对齐；或者，回退格式下行控制信息的长度向配置格式下行控制信息的长度对齐。
在一种可能的实施方式中，所述网络设备还包括：
发送器，用于向所述终端设备发送所述第一信息。
在一种可能的实施方式中，所述处理器还用于，确定所述终端设备在所述至少两个搜索空间内所需进行的最大盲检测次数之和大于所述终端设备的最大盲检测次数。
在一种可能的实施方式中，第一信息包括预设候选位置信息；所述处理器具体用于，在所述至少两个搜索空间中的所述预设候选位置信息指示的候选位置处发送下行控制信息。
在一种可能的实施方式中，第一信息包括预设搜索空间信息；所述处理器具体用于，在所述至少两个搜索空间中的所预设搜索空间信息指示的预设搜索空间中发送下行控制信息。
在一种可能的实施方式中，所述第一信息包括预设聚合等级信息；所述处理器具体用于，在所述至少两个搜索空间中的所述预设聚合等级的候选位置处发送下行控制信息。
第十二方面，本申请实施例还提供一种网络端设备，执行上述第四方面的盲检测次数的获取方法，具有相同或相似的技术特征和技术效果。网络设备，包括：
接收器，用于接收终端设备发送的所述终端设备支持的最大盲检测次数；
处理器，用于根据所述最大盲检测次数和所述网络设备为所述终端设备配置的搜索空间的配置信息，确定所述终端设备在所述搜索空间内所能进行的最大盲检测次数。
在一种可能的实施方式中，所述搜索空间的配置信息包括如下中的至少一项：
子载波间隔信息、时隙类型信息、符号数信息、带宽信息、资源块数信息、资源单元组数信息、资源单元组绑定数信息、控制信道元素数信息、所述搜索空间的类型信息、所述搜索空间包含的聚合级别种类信息、所述搜索空间中下行控制信息的长度种类信息、迷你时隙指示信息或聚合时隙所包括的时隙数量信息。
在一种可能的实施方式中，所述处理器具体用于，根据所述最大盲检测次数、所述配置信息和所述终端设备的多天线配置信息，确定所述终端设备在所述搜索空间内所能进行的最大盲检测次数；其中，所述多天线配置信息包括如下中的至少一项：天线数、码字数和层数。
在一种可能的实施方式中，所述处理器具体用于，根据所述最大盲检测次数、所述终端设备需监听的波束和/或传输点数目以及所述配置信息，确定所述终端设备在每个波束和/或传输点所能进行的最大盲检测次数。
在一种可能的实施方式中，所述处理器具体用于，根据所述最大盲检测次数、聚合载波数目信息和所述配置信息，确定所述终端设备在各载波上的搜索空间内所能进行的最大盲检测次数。
第十三方面，本申请实施例还提供一种程序，该程序在被处理器执行时用于执行上述第一方面终端设备侧对应的下行控制信息的传输方法。
第十四方面，本申请实施例还提供一种程序产品，例如计算机可读存储介质，包括上述第十三方面的程序。
第十五方面，本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第一方面终端设备侧对应的下行控制信息的传输方法。
第十六方面，本申请实施例还提供一种程序，该程序在被处理器执行时用于执行上述第二方面终端设备侧对应的盲检测次数的获取方法。
第十七方面，本申请实施例还提供一种程序产品，例如计算机可读存储介质，包括上述第十六方面的程序。
第十八方面，本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第二方面终端设备侧对应的盲检测次数的获取方法。
第十九方面，本申请实施例还提供一种程序，该程序在被处理器执行时用于执行上述第三方面网络设备侧对应的下行控制信息的传输方法。
第二十方面，本申请实施例还提供一种程序产品，例如计算机可读存储介质，包括上述第十九方面的程序。
第二十一方面，本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储 介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第三方面网络设备侧对应的下行控制信息的传输方法。
第二十二方面，本申请实施例还提供一种程序，该程序在被处理器执行时用于执行上述第四方面网络设备侧对应的盲检测次数的获取方法。
第二十三方面，本申请实施例还提供一种程序产品，例如计算机可读存储介质，包括上述第二十二方面的程序。
第二十四方面，本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第四方面网络设备侧对应的盲检测次数的获取方法。
附图说明
图1为本申请实施例适用的网络架构实施例一的示意图；
图2为通信系统中一种时频资源结构示意图；
图3为本申请实施例一提供的下行控制信息的传输方法的流程示意图；
图4为本申请实施例提供的搜索空间的周期示意图；
图5为本申请实施例二提供的下行控制信息的传输方法的流程示意图；
图6为本申请实施例一提供的盲检测次数的获取方法的流程示意图；
图7为本申请实施例三提供的下行控制信息的传输方法的流程示意图；
图8为本申请实施例二提供的盲检测次数的获取方法的流程示意图；
图9为本申请实施例一提供的下行控制信息的传输装置的结构示意图；
图10为本申请实施例二提供的下行控制信息的传输装置的结构示意图；
图11为本申请实施例一提供的盲检测次数的获取装置的结构示意图；
图12为本申请实施例三提供的下行控制信息的传输装置的结构示意图；
图13为本申请实施例二提供的盲检测次数的获取装置的结构示意图；
图14为本申请实施例一提供的终端设备的结构示意图；
图15为本申请实施例一提供的网络设备的结构示意图。
具体实施方式
图1为本申请实施例适用的网络架构实施例一的示意图。如图1所示，本实施例提供的网络架构包括网络设备10和至少一个终端设备20。
其中，网络设备10是一种将终端设备20接入到无线网络的设备，可以是全球移动通讯(Global System of Mobile communication，简称GSM)或码分多址(Code Division Multiple Access，简称CDMA)中的基站(Base Transceiver Station，简称BTS)，也可以是宽带码分多址(Wideband Code Division Multiple Access，简称WCDMA)中的基站(NodeB，简称NB)，还可以是长期演进(Long Term Evolution，简称LTE)中的演进型基站(Evolutional Node B，简称eNB或eNodeB)，或者中继站或接入点，或者未来第五代移动通信(the 5th Generation Mobile Communication，5G)网络中的基站，或者工作在高频频段的中继站、接入点、车载设备、可穿戴设备等，本申请在此并不限定。图1示意性的绘出了一种可能 的示意，以网络设备10为基站为例进行了绘示。
终端设备20可以是无线终端也可以是有线终端，无线终端可以为向用户提供语音和/或其他业务数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端可以经无线接入网(Radio Access Network，简称RAN)与一个或多个核心网进行通信，无线终端可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(Personal Communication Service，简称PCS)电话、无绳电话、会话发起协议(Session Initiation Protocol，简称SIP)话机、无线本地环路(Wireless Local Loop，简称WLL)站、个人数字助理(Personal Digital Assistant，简称PDA)等设备。无线终端也可以称为系统、订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端(User Terminal)、用户代理(User Agent)，本申请在此不作限定。图1示意性的绘出了一种可能的示意，以终端设备20为移动电话为例进行了绘示。
在传统LTE系统中，终端设备20在接收或发送数据信息之前，需要获知网络设备10配置给该终端设备20的下行控制信息(Downlink control information，DCI)。DCI用于指示终端设备如何进行下行的数据接收以及上行的数据传输。DCI示例性的可以包括终端设备进行上下行数据传输时使用的资源、调制编码方式、码率、冗余版本等信息。网络设备10在发送DCI时，通常将DCI承载在搜索空间中的物理下行控制信道(Physical Downlink Control channel，PDCCH)上发送。下面对DCI发送时涉及到的相关基础概念进行详细说明。
LTE系统的时频资源，时域上分为多个10ms的无线帧(radio frame)，一个无线帧包含10个1ms的子帧(subframe)，每个子帧均包括两个时隙(slot)，每个slot包括的符号的个数与子帧中循环前缀(cyclic prefix，CP)长度相关。如果CP为normal(普通)CP，则每个slot包括7个符号，每个子帧由14个符号组成，例如，每个子帧由序号分别为#0，#1，#2，#3，#4，#5，#6，#7，#8，#9，#10，#11，#12，#13的符号组成。如果CP为extended(长)CP，每个slot包括6个符号，每个子帧由12个符号组成，例如每个子帧由序号分别为#0，#1，#2，#3，#4，#5，#6，#7，#8，#9，#10，#11的符号组成。时频资源在频域上的最小单元为子载波。资源单元(Resource Element，RE)是划分时频资源的最小的单元，由索引对(k，l)唯一标识。其中，k为子载波索引，l为符号索引。当然，资源单元也可以通过其他形式的标识来标识。4个属于同一符号的连续RE构成资源元素组(Resource Element Group，REG)。频域调度的颗粒度为资源块组(Resource Block Group，RBG)，一个RGB包括多个资源块(Resource Block，RB)对。1个RB对为时域上一个子帧频域上12个子载波的二维资源块。对于normal CP，一个RB对包含168个时频资源单元RE,对于extended CP，一个RB对包含144个时频资源单元RE。图2为通信系统中一种时频资源结构示意图。如图2所示，图中示出了Normal CP两个RB(一个PRB对)。控制信道元素(control channel element，CCE)是PDCCH占用时频资源时的最小单元。一个PDCCH占用至少一个CCE。1个CCE包括9个REG，即36个RE。构成CCE的REG可连续分布也可间断分布。
5G NR系统的时频资源，时域上分为多个10ms的无线帧(radio frame)，一个无线帧包含10个1ms的子帧(subframe)，每个子帧均包括若干个时隙(slot)，对于15kHz子载波间隔一个子帧包含一个时隙，对于30kHz子载波间隔一个子帧包含两个时隙，每个slot包括的符号的个数与子帧中循环前缀(cyclic prefix，CP)长度相关。以15kHz子载波间隔为例，如果CP为normal(普通)CP，则每个slot包括14个符号，例如，由序号分别为#0，#1，#2，#3，#4，#5，#6，#7，#8，#9，#10，#11，#12，#13的符号组成。如果CP为extended(长)CP，每个slot包括12个符号，例如由序号分别为#0，#1，#2，#3，#4，#5，#6，#7，#8，#9，#10，#11的符号组成。时频资源在频域上的最小单元为子载波。资源单元(Resource Element，RE)是划分时频资源的最小的单元，由索引对(k，l)唯一标识。其中，k为子载波索引，l为符号索引。当然，资源单元也可以通过其他形式的标识来标识。12个属于同一符号的连续RE构成资源元素组(Resource Element Group，REG)。频域调度的颗粒度为资源块组(Resource Block Group，RBG)，一个RGB包括多个资源块(Resource Block，RB)。控制信道元素(control channel element，CCE)是PDCCH占用时频资源时的最小单元。一个PDCCH占用至少一个CCE。1个CCE包括6个REG，即72个RE。构成CCE的REG可连续分布也可间断分布。
LTE系统中，公共搜索空间包括16个CCE，并且约定公共搜索空间中CCE的聚合等级(Aggregation level，AL)只有4和8两种。聚合等级用于指示公共搜索空间中以多少个CCE为一个单元来承载信息，即一个PDCCH占用的CCE数量。例如，当AL设置为8时，一个PDCCH包括8个CCE，一个公共搜索空间中可包括两个PDCCH，两个PDCCH分别占用编号为0至7的CCE，以及编号为8至15的CCE。终端设备20在检索公共搜索空间时，也不清楚公共搜索空间的AL，因此，需分别以4个和8个CCE为单位在公共搜索空间中进行检索。当认为AL＝8时，只需在编号为0至7的CCE，以及编号为8至15的CCE上进行两次冗余循环检查(Cyclic redundancy check，CRC)校验。当认为AL＝4时，只需在编号为0至3的CCE、4至7的CCE、8至11的CCE，以及编号为12至15的CCE上进行四次CRC校验。这一过程可称为终端设备20的盲检过程。终端设备20只需最多进行6次CRC校验即可检索完公共搜索空间。
专用搜索空间的聚合级别可以为1、2、4、8中任一种，对应的专用搜索空间的CCE总数分别为6、12、8、16。参考上述公共搜索空间中的盲检工作量的计算，可知，终端设备20为获取承载在专用搜索空间中的DCI信息，需最多进行(6/1+12/2+8/4+16/8)＝16次盲检。一个专用搜索空间中也可包括至少一个PDCCH。一个PDCCH占用的CCE数量取决于聚合等级。
由于DCI信息可能承载在公共搜索空间中也可能承载在专用搜索空间中，因此LTE系统中，终端设备在盲检测一种长度的DCI时，最多需要盲检测22次。当终端设备需要盲检测的DCI的长度为两种可能性时，终端设备最多需要盲检测44次。LTE系统中的搜索空间通常位于每一个子帧的前3个符号上，终端设备在每个子帧的前3个符号上进行盲检测，盲检测次数不超过44次。
而在5G系统中，与LTE通信系统不同的是，单载波带宽可达400MHz，如果还像LTE一样，下行控制信道PDCCH占全带宽，那UE需要盲检测全带宽，复杂度成倍增加且功耗会很大。因而网络设备通常为终端设备配置多个独立的搜索空间/控制资源集(COntrol  REsource SET，CORESET)。CORESET为用于承载控制信息的时频资源集合，时域上为1到3个符号，频域上为部分带宽，搜索空间是在控制资源集CORESET中按照哈希(hash)函数算出来的逻辑位置张成的空间。在5G NR系统中搜索空间也分为为公共搜索空间和专用搜索空间两类。聚合级别除了可以是1,2,4,8，还可能为16或32。终端设备根据配置的搜索空间的周期进行盲检测，因此可能存在多个搜索空间在同一时刻重叠的情况，终端设备此时需要盲检测至少两个搜索空间。
但是终端设备在预设时间段内的盲检测次数存在最大值，当终端设备在每个搜索空间所允许的盲检测次数均达到终端设备的最大盲检测次数时，在重叠时刻，终端设备在各搜索空间的总盲检测次数会超过终端设备所能达到的最大值。当终端设备在每个搜索空间所允许的盲检测次数较小，例如只达到终端设备的最大盲检测次数的一半、甚至三分之一等，则可避免重叠时刻终端设备在各搜索空间的总盲检测次数超过终端设备所能达到的最大值；但是，对于非重叠时刻，终端设备的盲检测能力则被浪费。传统的下行控制信息的传输方法不合理。
为解决上述问题，本申请实施例提供一种下行控制信息的盲传输方法和装置。下面结合具体实施例对本申请实施例提供的下行控制信息的盲传输方法和装置进行详细说明。下面这几个具体的实施例中，对于相同或相似的概念或过程可能在某些实施例不再赘述。
本申请实施例一方面提供一种下行控制信息的传输方法。图3为本申请实施例一提供的下行控制信息的传输方法的流程示意图。本实施例中终端设备根据第一信息在各搜索空间内进行盲检测，确保了终端设备的盲检测次数在重叠时刻不超过终端设备的最大盲检测次数。如图3所示，下行控制信息的传输方法，包括：
S301、终端设备确定在预设时间段内存在至少两个搜索空间。
示例性的，终端设备根据接收到的网络设备配置的搜索空间的信息，确定预设时间段内的搜索空间个数。可选的，预设时间段可以为一个或多个时隙，也可以为一个迷你时隙，也可以为一个或多个符号，也可以为如1ms的固定时间段，也可以为一个或多个子帧。预设时间段为至少两个搜索空间的周期点的重叠时刻。其中，迷你时隙所包含的符号数小于7个。示例性的，终端设备在该预设时间段内进行的盲检测次数所能达到的最大值称为终端设备的最大盲检测次数。终端设备在每个搜索空间所能进行的盲检测次数均设置为最大盲检测次数，因此，终端设备需确定在该预设时间段内，有多个少搜索空间。当在预设时间段内，仅存在一个搜索空间时，终端设备所需进行的盲检测次数不会超过终端设备的最大盲检测次数，也确保了终端设备的盲检测能力没有被浪费。
S302、终端设备根据第一信息，在至少两个搜索空间中进行盲检测。
其中，第一信息用于指示终端设备在至少两个搜索空间内进行盲检测，终端设备在至少两个搜索空间内的盲检测次数总和不超过终端设备在预设时间段内的最大盲检测次数。
示例性的，当终端设备确认在预设时间段内存在至少两个搜索空间，此时，终端设备在该时间段内可能存在实际需要盲检测的次数超过终端设备的最大盲检测次数的情况。为避免这一情况，终端设备根据第一信息，在至少两个搜索空间中进行盲检测，使得终端设备在至少两个搜索空间中的总盲检测次数不超过终端设备的最大盲检测次数。第一信息示例性的可以用于指示终端设备将最大盲检测次数均匀分配给各搜索空间，例如，当终端设备在预设时间段内的最大盲检测次数为44，该预设时间段内存在两个搜索空间时，终端设 备分别在两个搜索空间内的最大盲检测次数均可设置为22。这样，当预设时间段内仅存在一个搜索空间时，终端设备在搜索空间内的盲检测次数可达到最大盲检测次数，当预设时间段内存在多个搜索空间时，终端设备在各搜索空间内所能达到的盲检测次数的总和也不超过终端设备的最大盲检测次数。此时，终端设备可以同时在多个搜索空间中进行盲检测。可选的，第一信息还可以用于指示终端设备按照优先级先后在不同的搜索空间内进行盲检测，即将最大盲检测次数优先供其中一个搜索空间使用，若该搜索空间搜索完毕未检测到DCI，且还存在剩余盲检测次数，则在剩余盲检测次数范围内在次优先级的搜索空间内进行盲检测。可选的，第一信息还可以用于指示终端设备采用其他的方式在各搜索空间内进行盲检测。
本申请实施例提供的下行控制信息的传输方法，包括：终端设备确定在预设时间段内存在至少两个搜索空间，终端设备根据第一信息，在至少两个搜索空间中进行盲检测，第一信息用于指示终端设备在至少两个搜索空间内进行盲检测，终端设备在至少两个搜索空间内的盲检测次数总和不超过终端设备在预设时间段内的最大盲检测次数。本实施例中终端设备确定预设时间段内的搜索空间个数，针对搜索空间个数为至少两个的情况，根据第一信息进行盲检测，确保了终端设备在至少两个搜索空间内的盲检测次数总和不超过终端设备在预设时间段内的最大盲检测次数，也避免了终端设备的盲检测能力的浪费。
进一步地，在上述实施例的基础上，终端设备确定在预设时间段内存在至少两个搜索空间，至少两个搜索空间中的任意两个搜索空间的周期不同，或者，周期和偏移均相同。
示例性的，当两个搜索空间的周期相同而偏移不同时，两个搜索空间并不会出现在同一预设时间段内。而当两个搜索空间的周期和偏移均相同时，同一预设时间段内一定会出现这两个搜索空间。而当两个搜索空间的周期不同时，一定会存在一个预设时间段，同时存在这两个时间段。图4为本申请实施例提供的搜索空间的周期示意图，如图4所示，搜索空间1的周期为2个时隙，搜索空间2的周期为5个时隙，因此，每隔10个时隙，就会存在一个重叠时隙，该时隙上终端设备具有两个搜索空间。如图4所示，重叠时隙为时隙10、20和30。
进一步的，在上述各实施例的基础上，下行控制信息的传输方法中，第一信息包括如下中的至少一项：
下行控制信息的长度信息、预设候选位置信息、预设搜索空间信息、至少一个搜索空间的优先级信息、预设聚合等级信息、下行控制信息的长度对齐状态信息。
下面结合具体实施例，对第一信息包括不同内容时，终端设备进行盲检测的具体方式进行详细说明。
在第一种可行的实现方式中，当第一信息包括下行控制信息的长度信息时；对应的，上述各实施例中的终端设备根据第一信息，在至少两个搜索空间中进行盲检测，具体包括：
终端设备在至少两个搜索空间中盲检测长度信息所指示的长度的下行控制信息。
示例性的，当存在至少两个搜索空间时，终端设备在盲检测时仅盲检测一种长度的DCI。通过将不同长度的DCI采用同一种长度发送，降低了终端设备需进行的盲检测次数。
可选的，下行控制信息的长度信息为如下中的任一项：
下行控制信息的长度中的最小长度值、下行控制信息的长度中的最大长度值、回退格式下行控制信息的长度值或预设的下行控制信息的长度值。
示例性的，第一信息所包含的下行控制信息的长度信息可以选用长度最小的下行控制信息的长度、长度最大的下行控制信息的长度、回退格式下行控制信息的长度或预设的下行控制信息的长度。其中，采用回退格式下行控制信息的长度可避免终端设备在RRC配置和RRC重配置之间出现模糊。可选的，预设的下行控制信息的长度可以是网络设备采用无线资源控制(Radio Resource Control，RRC)信息向终端设备配置的。
可选的，第一信息所包含的下行控制信息的长度信息还可选用其他长度。
在第二种可行的实现方式中，当第一信息包括预设候选位置信息时；对应的，上述各实施例中的终端设备根据第一信息，在至少两个搜索空间中进行盲检测，具体包括：
终端设备在至少两个搜索空间中的预设候选位置信息指示的候选位置处进行盲检测。
示例性的，搜索空间包含的候选位置的总个数与终端设备在该搜索空间内所需进行的盲检测次数成正比，因此，终端设备根据第一信息，仅检测搜索空间中的部分预设候选位置，可减少终端设备在各搜索空间中的盲检测次数。示例性的，预设候选位置可以是网络设备配置，也可以是终端设备根据预设的公式计算得到，也可以是协议中的约定候选位置。
在第三种可行的实现方式中，当第一信息包括预设搜索空间信息时；对应的，上述各实施例中的终端设备根据第一信息，在至少两个搜索空间中进行盲检测，具体包括：
终端设备在至少两个搜索空间中的所预设搜索空间信息指示的预设搜索空间中进行盲检测。
示例性的，当存在至少两个搜索空间时，终端设备仅在预设搜索空间中进行盲检测，从而减少盲检测次数。示例性的，预设搜索空间的个数可以为一个，当预设时间段内的搜索空间数据较多，单个搜索空间所需要的盲检测次数较少时，预设搜索空间的个数也可以多于一个。预设搜索空间可以是网络设备配置，也可以是终端设备根据预设的公式计算得到，也可以是协议中的约定的搜索空间，例如预设搜索空间为公共搜索空间，即终端在重叠时刻只对公共搜索空间进行盲检测。
在第四种可行的实现方式中，当第一信息包括至少一个搜索空间的优先级信息时；对应的，上述各实施例中的终端设备根据第一信息，在至少两个搜索空间中进行盲检测，具体包括：
终端设备根据优先级信息，在所述至少两个搜索空间中进行盲检测。
示例性的，当存在至少两个搜索空间时，终端设备优先盲检测部分搜索空间，当终端设备的盲检测次数还未达到最大盲检测次数时，终端设备再在其他搜索空间进行盲检测。
可选的，第一信息中可以包括所有搜索空间的优先级信息，还可以仅包括部分搜索空间的优先级，例如仅包括优先级较高的搜索空间的优先级，或者仅包括优先级较低的搜索空间的优先级。可选的，优先级信息可以为终端设备根据预设公式计算得到。
可选的，终端设备按优先级由高至低的顺序依次在至少两个搜索空间中进行盲检测直至检测到下行控制信息或盲检测次数达到终端设备的最大盲检测次数或终端设备完成对至少两个搜索空间的盲检测。
示例性的，终端设备在根据优先级进行盲检测时，可按照优先级从高至低的顺序，依次盲检测各搜索空间。当终端设备检测到DCI时则停止盲检测，或者当终端设备所进行的盲检测次数达到终端设备的最大盲检测次数则停止盲检测，或者当终端设备所进行的盲检测次数未达到终端设备的最大盲检测次数，但是终端设备已经完成了对各搜索空间的盲检 测则停止盲检测。
可选的，终端设备根据如下中的至少一项：搜索空间的类型信息、搜索空间的周期、搜索空间的子载波间隔信息、搜索空间占用的符号信息、搜索空间在时隙内的起始位置信息，确定搜索空间的优先级。
示例性的，第一信息中可以直接携带搜索空间的优先级。可选的，也可以是终端设备根据搜索空间的类型信息、搜索空间的周期、搜索空间的子载波间隔信息、搜索空间占用的符号信息、搜索空间在时隙内的起始位置信息，确定搜索空间的优先级。
可选的，终端设备也可根据搜索空间的配置信令的生效时间来确定搜索空间的优先级。示例性的，搜索空间类型为公共搜索空间时，可将其优先级设置为高于专用搜索空间的优先级。可选的，可将占用迷你时隙的搜索空间的优先级设置为较高的优先级。可选的，可将周期长的搜索空间的优先级设置为高于周期短的搜索空间的优先级。
在第五种可行的实现方式中，当第一信息包括预设聚合等级信息时；对应的，上述各实施例中的终端设备根据第一信息，在至少两个搜索空间中进行盲检测，具体包括：
终端设备在至少两个搜索空间中盲检测预设聚合等级的候选位置。
示例性的，搜索空间包含的聚合等级的种类与终端设备在该搜索空间内所需进行的盲检测次数成正比，因此，当存在至少两个搜索空间时，终端设备还可仅盲检测部分聚合等级的候选位置，从而减少盲检测次数。预设聚合等级可以是网络设备配置，也可以是终端设备根据预设的公式计算得到，也可以是协议中的约定的聚合等级，例如预设聚合等级为8，即终端在重叠时刻只对聚合等级为8的候选位置进行盲检测。
在第六种可行的实现方式中，当第一信息包括下行控制信息的长度对齐状态信息时；对应的，上述各实施例中的终端设备根据第一信息，在至少两个搜索空间中进行盲检测，具体包括：
终端设备在第一信息指示下行控制信息长度对齐时，在至少两个搜索空间中以对齐的下行控制信息长度盲检测下行控制信息。
示例性的，对于不同长度的DCI，网络设备在向终端设备发送时，可采用填充(padding)的方式，调整为同一长度从而使得终端设备在盲检测时仅检测相同长度的DCI。
可选的，下行控制信息的长度对齐状态信息，用于指示下行控制信息的长度向下行控制信息中长度最长的下行控制信息对齐；或者，回退格式的下行控制信息的长度向配置格式的下行控制信息的长度对齐。
示例性的，可将长度较短的下行控制信息的长度向长度较长的下行控制信息的长度对齐。可选的，若回退格式长度小于配置格式，则可将回退格式padding到配置格式；若配置格式长度小于回退格式，则可将配置格式padding到回退格式。
可选的，当终端设备确定在预设时间范围内仅存在一个搜索空间，则无需将多种长度的DCI进行填充，仍可采用原DCI长度，以节省下行控制信息的开销。
进一步的，在上述各实施例的基础上，下行控制信息的传输方法还包括：
终端设备接收网络设备发送的第一信息。
可选的，第一信息还可以为预存储在终端设备中的信息。
进一步的，在上述各实施例的基础上，本申请实施例还提供一种下行控制信息的传输方法。图5为本申请实施例二提供的下行控制信息的传输方法的流程示意图，本实施例中 终端设备在进行盲检测之前，需先确定终端设备确定各搜索空间对应的盲检测次数之和大于终端设备的最大盲检测次数。如图5所示，本申请实施例提供的下行控制信息的传输方法，包括：
S501、终端设备确定在预设时间段内存在至少两个搜索空间。
S502、终端设备确定至少两个搜索空间对应的盲检测次数之和大于终端设备的最大盲检测次数。
示例性的，当终端设备确定存在至少两个搜索空间时，终端设备需先确定至少两个搜索空间对应的盲检测次数之和，并比较盲检测次数之和与终端设备的最大盲检测次数。当各搜索空间对应的盲检测次数之和不大于终端设备的最大盲检测次数时，则可直接进行盲检测，当各搜索空间对应的盲检测次数之和大于终端设备的最大盲检测次数时，则需根据第一信息进行盲检测。
S503、终端设备根据第一信息，在至少两个搜索空间中进行盲检测。
示例性的，本实施例中的S501、S503与图3所示实施例中的S301和S302相同，本实施例对此不再赘述。
本申请实施例提供的下行控制信息的传输方法，包括：终端设备确定在预设时间段内存在至少两个搜索空间，终端设备确定至少两个搜索空间对应的盲检测次数之和大于终端设备的最大盲检测次数，终端设备根据第一信息，在至少两个搜索空间中进行盲检测。本实施例中终端设备在根据第一信息，在至少两个搜索空间中进行盲检测之前，首先确认重叠时刻的各搜索空间对应的盲检测次数之和大于终端设备的最大盲检测次数，避免了各搜索空间对应的盲检测次数之和不大于终端设备的最大盲检测次数时，仍根据第一信息进行盲检测，造成了终端设备的盲检测能力的浪费。
在5G NR通信系统中，为提高数据率、系统性能、减少时延，引入了迷你时隙、时隙聚合、多种子载波间隔、DCI长度可变等新的技术，该些技术均有可能导致终端设备在预设时间段内的所需进行的盲检次数发生变化，因此，本申请实施例还提供一种盲检测次数的获取方法。
具体的，在5G NR通信系统中，将载波汇聚(Component Aggregation，CA)技术作为扩展系统带宽的方法，并采用多天线增强技术(多入多出，Multiple-Input Multiple-Output，MIMO)和多点协作技术(Coordinated Multi-Point，CoMP)以提高数据率和系统性能。载波汇聚技术中，将多个载波分配给同一个终端设备，在预设时间段内，终端设备需要盲检测的搜索空间的数量变为聚合载波个数倍的搜索空间。MIMO和CoMP技术均会导致搜索空间的数量的增加。搜索空间数量的增加将会导致终端设备在预设时间段内所需进行的盲检测数量发生变化。
同样的，在5G NR中，还引入了多种子载波间隔，以15kHz为基线，子载波间隔可以是15kHz*2 n，n是整数，子载波间隔从3.75kHz，7.5kHz直到480kHz，最多8种。对应的，随着子载波间隔的变化，5G NR中还有多种符号长度、时隙长度。示例性的，随着子载波间隔增大，符号长度变小，普通时隙固定包含14个符号，普通时隙长度变短；一个子帧固定为1毫秒，一个子帧内包含的普通时隙数目增多。
可选的，在5G NR中，一个时隙内符号的用途可以由下行传输DL、保护间隔(Guard  Period，GP)、上行传输UL等其中的至少一个组成。因此，5G中的时隙，根据时隙内符号用途的不同，时隙可至少划分为：DL only slot,DL centric slot,UL centric slot,UL only slot等。可选的，不同的时隙构成包括的上行符号个数/下行符号个数/保护间隔符号个数不一样一定。时隙还可以有不同的时隙类型，不同的时隙类型包括的符号个数不一样，如迷你时隙(Mini slot)中所包含的符号小于14个(如2个符号、4个符号、7个符号等)，普通时隙(Slot)包含14个符号。
可选的，5G NR中各通信设备通常工作于高频场景，衰落严重，为了解决覆盖问题，在5G NR中，引入了时隙聚合技术，即可以将多个时隙分配给同一个终端设备用于传输数据，可以用于上行数据调度，也可以用于下行数据调度，还可以将这多个时隙用于上行控制信息(Uplink Control Information，UCI)重复。
可选的，在DCI设计上，在5G NR中为了支持更多的灵活性，将很多信息变成动态指示，但如果太多信息需要在DCI中承载，DCI的总开销太大。因而又考虑通过半静态的RRC信令给终端设备配置DCI中某些字段的存在与否(presence/absence)，以及字段的长度和数量也可以通过RRC配置，提高了灵活性，避免DCI有一个固定的较大的开销。但这样一来DCI的长度就比较灵活，终端设备需要进行的盲检测次数增多。
因此，在5G中随着上述新技术的引入，均可能导致终端设备在预设时间段内的盲检测次数的不同。为解决上述问题，本申请实施例提供一种盲检测次数的获取方法。图6为本申请实施例一提供的盲检测次数的获取方法的流程示意图。如图6所示，盲检测次数的获取方法包括：
S601、终端设备接收网络设备发送的第二信息，第二信息包括搜索空间配置信息。
示例性的，网络设备在为终端设备配置搜索空间时，向终端设备发送搜索空间的配置信息，配置信息示例性的可以为搜索空间的属性信息，例如搜索空间的类型信息、搜索空间包括的聚合级别等信息。
S602、终端设备根据搜索空间配置信息，确定终端设备在搜索空间配置信息所指示的搜索空间内所能进行的最大盲检测次数。
示例性的，当5G NR中引入新的技术时，将会导致搜索空间的配置信息发生变化，因此，终端设备根据接收到的搜索空间的配置信息，确定终端设备在搜索空间内所能进行的最大盲检测次数。
本申请实施例提供一种盲检测次数的获取方法，包括：终端设备接收网络设备发送的第二信息，第二信息包括搜索空间配置信息，终端设备根据搜索空间配置信息，确定终端设备在搜索空间配置信息所指示的搜索空间内所能进行的最大盲检测次数。本实施例中终端设备根据搜索空间的配置信息确定终端设备的最大盲检测次数，可获得准确的终端设备的最大盲检测次数。
示例性的，上述实施例中，终端设备根据搜索空间配置信息确定最大盲检测次数的方式，可包括如下的几种方式：
第一种可行的获取方式中，搜索空间配置信息包括如下中的至少一项：子载波间隔信息、时隙类型信息、符号数信息、带宽信息、资源块数信息、资源单元组数信息、资源单元组绑定数信息、控制信道元素数信息、搜索空间的类型信息、搜索空间包含的聚合级别种类信息、搜索空间中下行控制信息的长度种类信息、迷你时隙指示信息或聚合时隙所包 括的时隙数量信息。
示例性的，终端设备设备根据子载波间隔信息，考虑到子载波间隔越大，符号长度越小，因此，随着子载波间隔的增大，终端设备的盲检测次数变小。例如，当子载波间隔为15KHz时，终端设备的盲检测次数为44，那么当子载波间隔增大为30KHz时，终端设备在一个时隙内的盲检测次数可降低为22，当子载波间隔增大为60KHz时，终端设备在一个时隙内的盲检测次数可降低为11，当子载波间隔增大为120KHz时，终端设备在一个时隙内的盲检测次数可降低为5。从而使得终端设备在1ms的固定时长内，所能进行的总盲检测次数维持44次。
示例性的，当时隙类型为mini slot时，终端设备在迷你时隙上的最大盲检测次数降低。
示例性的，当时隙类型包含mini slot时，终端设备在普通时隙上的最大盲检测次数降低。
示例性的，当时隙类型包含mini slot时，终端设备在普通时隙上只盲检测公共搜索空间。
示例性的，当调度了时隙聚合时，终端设备在普通时隙上的最大盲检测次数降低。当调度了时隙聚合时，终端设备增加在迷你时隙上的盲检测次数。
示例性的，当普通时隙的CORESET符号数较少时，终端设备在普通时隙上的最大盲检测次数降低。当普通时隙的CORESET符号数较少时，终端设备增加在迷你时隙上的盲检测次数。
第二种可行的获取方式中，终端设备根据搜索空间配置信息，确定终端设备在搜索空间配置信息所指示的搜索空间内所能进行的最大盲检测次数，包括：
终端设备根据搜索空间配置信息和终端设备的多天线配置信息，确定终端设备在搜索空间配置信息所指示的搜索空间内所能进行的最大盲检测次数；其中，多天线配置信息包括如下中的至少一项：天线数、码字数和层数。
第三种可行的获取方式中，终端设备根据搜索空间配置信息，确定终端设备在搜索空间配置信息所指示的搜索空间内所能进行的最大盲检测次数，包括：
终端设备根据终端设备需监听的波束和/或传输点数目，以及搜索空间配置信息，确定终端设备在每个波束和/或传输点所能进行的最大盲检测次数。
示例性的，当5G中引入多点协作技术时，终端设备需要监听多个波束或传输点。示例性的，终端设备的最大盲检测次数可以为最大盲检测次数X波束/传输点个数。示例性的，终端设备也可将最大盲检测次数平均分配至每个波束或传输点。
第四种可行的获取方式中，终端设备根据搜索空间配置信息，确定终端设备在搜索空间配置信息所指示的搜索空间内所能进行的最大盲检测次数，包括：
终端设备根据聚合载波数目信息和搜索空间配置信息，确定终端设备在各载波上的搜索空间内所能进行的最大盲检测次数。
示例性的，当5G中引入载波聚合技术时，终端设备需要监听多个载波上的搜索空间。示例性的，终端设备的最大盲检测次数可以为最大盲检测次数X聚合载波个数。示例性的，终端设备也可将最大盲检测次数平均分配至每个载波。
示例性的，在上述任一实施例的基础上，本申请实施例还提供一种盲检测次数的获取方法。本实施例中，终端设备在根据搜索空间配置信息确定盲检测次数之前，盲检测次数 的获取方法还包括：
终端设备向网络设备发送终端设备能够支持的最大盲检测次数。
示例性的，终端设备也可以向网络设备上报自己的最大盲检能力，以避免终端设备需要盲检的总候选位置数量超过终端设备的最大盲检次数。
本申请实施例另一方面还提供一种下行控制信息的传输方法，应用于网络设备侧，与上述终端设备侧的下行控制信息的传输方法相对应，具有相同或相似的技术特征，本申请对此不再赘述。
图7为本申请实施例三提供的下行控制信息的传输方法的流程示意图。如图7所示，下行控制信息的传输方法包括：
S701、网络设备确定待发送的下行控制信息。
S702、网络设备根据第一信息，在预设时间段内的至少两个搜索空间内发送下行控制信息。
其中，所述第一信息用于指示所述终端设备在所述至少两个搜索空间内接收下行控制信息。
可选的，至少两个搜索空间中的任意两个搜索空间的周期不同，或者，周期和偏移均相同。
可选的，第一信息包括如下中的至少一项：
下行控制信息的长度信息、预设候选位置信息、预设搜索空间信息、至少一个搜索空间的优先级信息、预设聚合等级信息、下行控制信息的长度对齐状态信息。
可选的，第一信息包括下行控制信息的长度信息；网络设备根据第一信息在至少两个搜索空间内发送下行控制信息，包括：
网络设备在至少两个搜索空间内发送长度信息所指示的长度的下行控制信息。
可选的，下行控制信息的长度信息为如下中的任一项：
下行控制信息的长度中的最小长度值、下行控制信息的长度中的最大长度值、回退格式下行控制信息的长度值或预设的下行控制信息的长度值。
可选的，第一信息包括至少一个搜索空间的优先级信息；网络设备根据第一信息在至少两个搜索空间内发送下行控制信息，包括：
网络设备根据优先级信息，在至少两个搜索空间内发送下行控制信息。
可选的，方法还包括：
网络设备根据如下中的至少一项：搜索空间的类型信息、搜索空间的周期、搜索空间的子载波间隔信息、搜索空间占用的符号信息、搜索空间在时隙内的起始位置信息，确定搜索空间的优先级。
可选的，第一信息包括下行控制信息的长度对齐状态信息；网络设备根据第一信息在至少两个搜索空间内发送下行控制信息，包括：
网络设备在第一信息指示下行控制信息长度对齐时，在至少两个搜索空间内发送对齐的下行控制信息。
可选的，下行控制信息的长度对齐状态信息，用于指示下行控制信息的长度向下行控制信息中长度最长的下行控制信息对齐；或者，回退格式下行控制信息的长度向配置格式下行控制信息的长度对齐。
可选的，下行控制信息的传输方法还包括：
网络设备向终端设备发送第一信息。
可选的，网络设备根据第一信息在至少两个搜索空间内发送下行控制信息之前，方法还包括：
网络设备确定终端设备在至少两个搜索空间内所需进行的最大盲检测次数之和大于终端设备的最大盲检测次数。
可选的，第一信息包括预设候选位置信息；网络设备根据第一信息在至少两个搜索空间内发送下行控制信息，包括：
网络设备在至少两个搜索空间中的预设候选位置信息指示的候选位置处发送下行控制信息。
可选的，第一信息包括预设搜索空间信息；网络设备根据第一信息在至少两个搜索空间内发送下行控制信息，包括：
网络设备在至少两个搜索空间中的所预设搜索空间信息指示的预设搜索空间中发送下行控制信息。
可选的，第一信息包括预设聚合等级信息；网络设备根据第一信息在至少两个搜索空间内发送下行控制信息，包括：
网络设备在至少两个搜索空间中的预设聚合等级的候选位置处发送下行控制信息。
本申请实施例另一方面还提供一种盲检测次数的获取方法，应用于网络设备侧，与上述终端设备侧的盲检测次数的获取方法相对应，具有相同或相似的技术特征，本申请对此不再赘述。
图8为本申请实施例二提供的盲检测次数的获取方法的流程示意图。如图8所示，盲检测次数的获取方法包括：
S801、网络设备接收终端设备发送的终端设备支持的最大盲检测次数。
S802、网络设备根据最大盲检测次数和网络设备为终端设备配置的搜索空间的配置信息，确定终端设备在搜索空间内所能进行的最大盲检测次数。
可选的，搜索空间的配置信息包括如下中的至少一项：
子载波间隔信息、时隙类型信息、符号数信息、带宽信息、资源块数信息、资源单元组数信息、资源单元组绑定数信息、控制信道元素数信息、搜索空间的类型信息、搜索空间包含的聚合级别种类信息、搜索空间中下行控制信息的长度种类信息、迷你时隙指示信息或聚合时隙所包括的时隙数量信息。
可选的，网络设备根据最大盲检测次数和网络设备为终端设备配置的搜索空间的配置信息，确定终端设备在搜索空间内所能进行的最大盲检测次数，包括：
网络设备根据最大盲检测次数、配置信息和终端设备的多天线配置信息，确定终端设备在搜索空间内所能进行的最大盲检测次数；其中，多天线配置信息包括如下中的至少一项：天线数、码字数和层数。
可选的，网络设备根据最大盲检测次数和网络设备为终端设备配置的搜索空间的配置信息，确定终端设备在搜索空间内所能进行的最大盲检测次数，包括：
网络设备根据最大盲检测次数、终端设备需监听的波束和/或传输点数目以及配置信息，确定终端设备在每个波束和/或传输点所能进行的最大盲检测次数。
可选的，网络设备根据最大盲检测次数和网络设备为终端设备配置的搜索空间的配置信息，确定终端设备在搜索空间内所能进行的最大盲检测次数，包括：
网络设备根据最大盲检测次数、聚合载波数目信息和配置信息，确定终端设备在各载波上的搜索空间内所能进行的最大盲检测次数。
本申请实施例另一方面还提供一种下行控制信息的传输装置，用于执行上述实施例中的终端设备侧的下行控制信息的传输方法，具有相同的技术特征和技术效果，本申请不再赘述。
图9为本申请实施例一提供的下行控制信息的传输装置的结构示意图。本实施例中，该下行控制信息的传输装置可以通过软件、硬件或者软硬件结合的方式实现。如图9所示，下行控制信息的传输装置，包括：
搜索空间检测模块901，用于确定在预设时间段内存在至少两个搜索空间；
盲检测模块902，用于根据第一信息，在至少两个搜索空间中进行盲检测；其中，第一信息用于指示装置在至少两个搜索空间内进行盲检测，装置在至少两个搜索空间内的盲检测次数总和不超过装置在预设时间段内的最大盲检测次数。
可选的，至少两个搜索空间中的任意两个搜索空间的周期不同，或者，周期和偏移均相同。
可选的，第一信息包括如下中的至少一项：
下行控制信息的长度信息、预设候选位置信息、预设搜索空间信息、至少一个搜索空间的优先级信息、预设聚合等级信息、下行控制信息的长度对齐状态信息。
可选的，第一信息包括下行控制信息的长度信息；盲检测模块902具体用于，在至少两个搜索空间中盲检测长度信息所指示的长度的下行控制信息。
可选的，下行控制信息的长度信息为如下中的任一项：
下行控制信息的长度中的最小长度值、下行控制信息的长度中的最大长度值、回退格式下行控制信息的长度值或预设的下行控制信息的长度值。
可选的，第一信息包括至少一个搜索空间的优先级信息；盲检测模块902具体用于，根据优先级信息，在至少两个搜索空间中进行盲检测。
可选的，盲检测模块902具体用于，按优先级由高至低的顺序依次在至少两个搜索空间中进行盲检测直至检测到下行控制信息或盲检测次数达到装置的最大盲检测次数或装置完成对至少两个搜索空间的盲检测。
进一步地，在图9所示实施例的基础上，图10为本申请实施例二提供的资源处理装置的结构示意图。如图10所示，下行控制信息的传输装置还包括：
优先级获取模块903，优先级获取模块903用于，根据如下中的至少一项：搜索空间的类型信息、搜索空间的周期、搜索空间的子载波间隔信息、搜索空间占用的符号信息、搜索空间在时隙内的起始位置信息，确定搜索空间的优先级。
可选的，第一信息包括下行控制信息的长度对齐状态信息；盲检测模块902具体用于，在第一信息指示下行控制信息长度对齐时，在至少两个搜索空间中以对齐的下行控制信息长度盲检测下行控制信息。
可选的，下行控制信息的长度对齐状态信息，用于指示下行控制信息的长度向下行控制信息中长度最长的下行控制信息对齐；或者，回退格式下行控制信息的长度向配置格式 下行控制信息的长度对齐。
进一步地，如图10所示，下行控制信息的传输装置还包括：接收模块904，用于接收网络设备发送的第一信息。
可选的，盲检测模块902还用于，确定至少两个搜索空间对应的盲检测次数之和大于装置的最大盲检测次数。
可选的，第一信息包括预设候选位置信息；盲检测模块902具体用于，在至少两个搜索空间中的预设候选位置信息指示的候选位置处进行盲检测。
可选的，第一信息包括预设搜索空间信息；盲检测模块902具体用于，在至少两个搜索空间中的所预设搜索空间信息指示的预设搜索空间中进行盲检测。
可选的，第一信息包括预设聚合等级信息；盲检测模块902具体用于，在至少两个搜索空间中盲检测预设聚合等级的候选位置。
本申请实施例另一方面还提供一种盲检测次数的获取装置，用于执行上述实施例中的终端设备侧的盲检测次数的获取方法，具有相同的技术特征和技术效果，本申请不再赘述。
图11为本申请实施例一提供的盲检测次数的获取装置的结构示意图。本实施例中，盲检测次数的获取装置可以通过软件、硬件或者软硬件结合的方式实现。如图11所示，盲检测次数的获取装置，包括：
接收模块1101，用于接收网络设备发送的第二信息，第二信息包括搜索空间配置信息；
盲检测次数获取模块1102，用于根据搜索空间配置信息，确定装置在搜索空间配置信息所指示的搜索空间内所能进行的最大盲检测次数。
可选的，搜索空间配置信息包括如下中的至少一项：
子载波间隔信息、时隙类型信息、符号数信息、带宽信息、资源块数信息、资源单元组数信息、资源单元组绑定数信息、控制信道元素数信息、搜索空间的类型信息、搜索空间包含的聚合级别种类信息、搜索空间中下行控制信息的长度种类信息、迷你时隙指示信息或聚合时隙所包括的时隙数量信息。
可选的，盲检测次数获取模块1102具体用于，根据搜索空间配置信息和装置的多天线配置信息，确定装置在搜索空间配置信息所指示的搜索空间内所能进行的最大盲检测次数；其中，多天线配置信息包括如下中的至少一项：天线数、码字数和层数。
可选的，盲检测次数获取模块1102具体用于，根据装置需监听的波束和/或传输点数目，以及搜索空间配置信息，确定装置在每个波束和/或传输点所能进行的最大盲检测次数。
可选的，盲检测次数获取模块1102具体用于，根据聚合载波数目信息和搜索空间配置信息，确定装置在各载波上的搜索空间内所能进行的最大盲检测次数。
可选的，如图11所示，盲检测次数的获取装置还包括：
发送模块1103，用于向网络设备发送装置能够支持的最大盲检测次数。
本申请实施例另一方面还提供一种下行控制信息的传输装置，用于执行上述实施例中的网络设备侧的下行控制信息的传输方法，具有相同的技术特征和技术效果，本申请不再赘述。
图12为本申请实施例三提供的下行控制信息的传输装置的结构示意图。本实施例中，该下行控制信息的传输装置可以通过软件、硬件或者软硬件结合的方式实现。如图12所示，下行控制信息的传输装置，包括：
下行控制信息获取模块1201，用于确定待发送的下行控制信息；
下行控制信息发送模块1202，用于根据第一信息，在预设时间段内的至少两个搜索空间内发送下行控制信息；
其中，第一信息用于指示终端设备在所述至少两个搜索空间内接收下行控制信息。
可选的，至少两个搜索空间中的任意两个搜索空间的周期不同，或者，周期和偏移均相同。
可选的，第一信息包括如下中的至少一项：
下行控制信息的长度信息、预设候选位置信息、预设搜索空间信息、至少一个搜索空间的优先级信息、预设聚合等级信息、下行控制信息的长度对齐状态信息。
可选的，第一信息包括下行控制信息的长度信息；下行控制信息发送模块1202具体用于，在至少两个搜索空间内发送长度信息所指示的长度的下行控制信息。
可选的，下行控制信息的长度信息为如下中的任一项：
下行控制信息的长度中的最小长度值、下行控制信息的长度中的最大长度值、回退格式下行控制信息的长度值或预设的下行控制信息的长度值。
可选的，第一信息包括至少一个搜索空间的优先级信息；下行控制信息发送模块1202具体用于，根据优先级信息，在至少两个搜索空间内发送下行控制信息。
可选的，如图12所示，下行控制信息的传输装置还包括：
优先级获取模块1203，用于根据如下中的至少一项：搜索空间的类型信息、搜索空间的周期、搜索空间的子载波间隔信息、搜索空间占用的符号信息、搜索空间在时隙内的起始位置信息，确定搜索空间的优先级。
可选的，第一信息包括下行控制信息的长度对齐状态信息；下行控制信息发送模块1202具体用于，在第一信息指示下行控制信息长度对齐时，在至少两个搜索空间内发送对齐的下行控制信息。
可选的，下行控制信息的长度对齐状态信息，用于指示下行控制信息的长度向下行控制信息中长度最长的下行控制信息对齐；或者，回退格式下行控制信息的长度向配置格式下行控制信息的长度对齐。
可选的，如图12所示，下行控制信息的传输装置还包括：
发送模块1204，用于向终端设备发送第一信息。
可选的，下行控制信息发送模块1202还用于，确定终端设备在至少两个搜索空间内所需进行的最大盲检测次数之和大于终端设备的最大盲检测次数。
可选的，第一信息包括预设候选位置信息；下行控制信息发送模块1202具体用于，在至少两个搜索空间中的预设候选位置信息指示的候选位置处发送下行控制信息。
可选的，第一信息包括预设搜索空间信息；下行控制信息发送模块1202具体用于，在至少两个搜索空间中的所预设搜索空间信息指示的预设搜索空间中发送下行控制信息。
可选的，第一信息包括预设聚合等级信息；下行控制信息发送模块1202具体用于，在至少两个搜索空间中的预设聚合等级的候选位置处发送下行控制信息。
本申请实施例另一方面还提供一种盲检测次数的获取装置，用于执行上述实施例中的网络设备侧的盲检测次数的获取方法，具有相同的技术特征和技术效果，本申请不再赘述。
图13为本申请实施例二提供的盲检测次数的获取装置的结构示意图。本实施例中， 盲检测次数的获取装置可以通过软件、硬件或者软硬件结合的方式实现。如图13所示，盲检测次数的获取装置，包括：
接收模块1301，用于接收终端设备发送的终端设备支持的最大盲检测次数；
最大盲检测次数获取模块1302，用于根据最大盲检测次数和装置为终端设备配置的搜索空间的配置信息，确定终端设备在搜索空间内所能进行的最大盲检测次数。
可选的，搜索空间的配置信息包括如下中的至少一项：
子载波间隔信息、时隙类型信息、符号数信息、带宽信息、资源块数信息、资源单元组数信息、资源单元组绑定数信息、控制信道元素数信息、搜索空间的类型信息、搜索空间包含的聚合级别种类信息、搜索空间中下行控制信息的长度种类信息、迷你时隙指示信息或聚合时隙所包括的时隙数量信息。
可选的，最大盲检测次数获取模块1302具体用于，根据最大盲检测次数、配置信息和终端设备的多天线配置信息，确定终端设备在搜索空间内所能进行的最大盲检测次数；其中，多天线配置信息包括如下中的至少一项：天线数、码字数和层数。
可选的，最大盲检测次数获取模块1302具体用于，根据最大盲检测次数、终端设备需监听的波束和/或传输点数目以及配置信息，确定终端设备在每个波束和/或传输点所能进行的最大盲检测次数。
可选的，最大盲检测次数获取模块1302具体用于，根据最大盲检测次数、聚合载波数目信息和配置信息，确定终端设备在各载波上的搜索空间内所能进行的最大盲检测次数。
本申请实施例另一方面还提供一种终端设备，用于执行上述实施例中的下行控制信息的传输方法。具有相同的技术特征和技术效果，本申请不再赘述。
图14为本申请实施例一提供的终端设备的结构示意图。如图14所示，终端设备包括：收发器1401、存储器1402、处理器1403和至少一个通信总线1404。通信总线1404用于实现元件之间的通信连接。存储器1402可能包含高速随机存储器，也可能还包括非易失性存储器，例如至少一个磁盘存储器，存储器1402中可以存储各种程序，用于完成各种处理功能以及实现本实施例的方法步骤。处理器1403用于执行存储器1402中存储的程序。本实施例中，收发器1401可以为终端设备中的射频处理模块或者基带处理模块。其中，收发器1401耦合至所述处理器1403。
处理器1403，用于确定在预设时间段内存在至少两个搜索空间；
根据第一信息，在至少两个搜索空间中进行盲检测；其中，第一信息用于指示终端设备在至少两个搜索空间内进行盲检测，终端设备在至少两个搜索空间内的盲检测次数总和不超过终端设备在预设时间段内的最大盲检测次数。
可选的，至少两个搜索空间中的任意两个搜索空间的周期不同，或者，周期和偏移均相同。
可选的，第一信息包括如下中的至少一项：
下行控制信息的长度信息、预设候选位置信息、预设搜索空间信息、至少一个搜索空间的优先级信息、预设聚合等级信息、下行控制信息的长度对齐状态信息。
可选的，第一信息包括下行控制信息的长度信息；处理器1403具体用于，在至少两个搜索空间中盲检测长度信息所指示的长度的下行控制信息。
可选的，下行控制信息的长度信息为如下中的任一项：
下行控制信息的长度中的最小长度值、下行控制信息的长度中的最大长度值、回退格式下行控制信息的长度值或预设的下行控制信息的长度值。
可选的，第一信息包括至少一个搜索空间的优先级信息；处理器1403具体用于，根据优先级信息，在至少两个搜索空间中进行盲检测。
可选的，处理器1403具体用于，按优先级由高至低的顺序依次在至少两个搜索空间中进行盲检测直至检测到下行控制信息或盲检测次数达到终端设备的最大盲检测次数或终端设备完成对至少两个搜索空间的盲检测。
可选的，处理器1403还用于，根据如下中的至少一项：搜索空间的类型信息、搜索空间的周期、搜索空间的子载波间隔信息、搜索空间占用的符号信息、搜索空间在时隙内的起始位置信息，确定搜索空间的优先级。
可选的，第一信息包括下行控制信息的长度对齐状态信息；处理器1403具体用于，在第一信息指示下行控制信息长度对齐时，在至少两个搜索空间中以对齐的下行控制信息长度盲检测下行控制信息。
可选的，下行控制信息的长度对齐状态信息，用于指示下行控制信息的长度向下行控制信息中长度最长的下行控制信息对齐；或者，回退格式下行控制信息的长度向配置格式下行控制信息的长度对齐。
可选的，终端设备还包括收发器1401，用于接收网络设备发送的第一信息。
可选的，处理器1403还用于，确定至少两个搜索空间对应的盲检测次数之和大于终端设备的最大盲检测次数。
可选的，第一信息包括预设候选位置信息；处理器1403具体用于，在至少两个搜索空间中的预设候选位置信息指示的候选位置处进行盲检测。
可选的，第一信息包括预设搜索空间信息；处理器1403具体用于，在至少两个搜索空间中的所预设搜索空间信息指示的预设搜索空间中进行盲检测。
可选的，第一信息包括预设聚合等级信息；处理器1403具体用于，在至少两个搜索空间中盲检测预设聚合等级的候选位置。
本申请实施例另一方面还提供一种终端设备，用于执行上述实施例中的盲检测次数的获取方法，具有相同或相似的技术特征和技术效果。如图14所示，终端设备包括：
收发器1401，用于接收网络设备发送的第二信息，第二信息包括搜索空间配置信息；
处理器1403，用于根据搜索空间配置信息，确定终端设备在搜索空间配置信息所指示的搜索空间内所能进行的最大盲检测次数。
可选的，搜索空间配置信息包括如下中的至少一项：
子载波间隔信息、时隙类型信息、符号数信息、带宽信息、资源块数信息、资源单元组数信息、资源单元组绑定数信息、控制信道元素数信息、搜索空间的类型信息、搜索空间包含的聚合级别种类信息、搜索空间中下行控制信息的长度种类信息、迷你时隙指示信息或聚合时隙所包括的时隙数量信息。
可选的，处理器1403具体用于，根据搜索空间配置信息和终端设备的多天线配置信息，确定终端设备在搜索空间配置信息所指示的搜索空间内所能进行的最大盲检测次数；其中，多天线配置信息包括如下中的至少一项：天线数、码字数和层数。
可选的，处理器1403具体用于，根据终端设备需监听的波束和/或传输点数目，以及 搜索空间配置信息，确定终端设备在每个波束和/或传输点所能进行的最大盲检测次数。
可选的，处理器1403具体用于，根据聚合载波数目信息和搜索空间配置信息，确定终端设备在各载波上的搜索空间内所能进行的最大盲检测次数。
可选的，终端设备还包括：
收发器1401，用于向网络设备发送终端设备能够支持的最大盲检测次数。
本申请实施例另一方面还提供一种网络设备，用于执行上述实施例中的下行控制信息的传输方法。具有相同的技术特征和技术效果，本申请不再赘述。
图15为本申请实施例一提供的网络设备的结构示意图。如图15所示，终端设备，包括：收发器1501、存储器1502、处理器1503和至少一个通信总线1504。通信总线1504用于实现元件之间的通信连接。存储器1502可能包含高速随机存储器，也可能还包括非易失性存储器，例如至少一个磁盘存储器，存储器1502中可以存储各种程序，用于完成各种处理功能以及实现本实施例的方法步骤。处理器1503用于执行存储器1502中存储的程序。本实施例中，收发器1501可以为网络设备中的射频处理模块或者基带处理模块。其中，收发器1501耦合至所述处理器1503。
处理器1503，用于确定待发送的下行控制信息；
用于根据第一信息，在预设时间段内的至少两个搜索空间内发送下行控制信息；其中，所述第一信息用于指示所述终端设备在所述至少两个搜索空间内接收下行控制信息。
可选的，至少两个搜索空间中的任意两个搜索空间的周期不同，或者，周期和偏移均相同。
可选的，第一信息包括如下中的至少一项：
下行控制信息的长度信息、预设候选位置信息、预设搜索空间信息、至少一个搜索空间的优先级信息、预设聚合等级信息、下行控制信息的长度对齐状态信息。
可选的，第一信息包括下行控制信息的长度信息；处理器1503具体用于，在至少两个搜索空间内发送长度信息所指示的长度的下行控制信息。
可选的，下行控制信息的长度信息为如下中的任一项：
下行控制信息的长度中的最小长度值、下行控制信息的长度中的最大长度值、回退格式下行控制信息的长度值或预设的下行控制信息的长度值。
可选的，第一信息包括至少一个搜索空间的优先级信息；处理器1503具体用于，根据优先级信息，在至少两个搜索空间内发送下行控制信息。
可选的，处理器1503还用于根据如下中的至少一项：搜索空间的类型信息、搜索空间的周期、搜索空间的子载波间隔信息、搜索空间占用的符号信息、搜索空间在时隙内的起始位置信息，确定搜索空间的优先级。
可选的，第一信息包括下行控制信息的长度对齐状态信息；处理器1503具体用于，在第一信息指示下行控制信息长度对齐时，在至少两个搜索空间内发送对齐的下行控制信息。
可选的，下行控制信息的长度对齐状态信息，用于指示下行控制信息的长度向下行控制信息中长度最长的下行控制信息对齐；或者，回退格式下行控制信息的长度向配置格式下行控制信息的长度对齐。
可选的，网络设备还包括：
收发器1501，用于向终端设备发送第一信息。
可选的，处理器1503还用于，确定终端设备在至少两个搜索空间内所需进行的最大盲检测次数之和大于终端设备的最大盲检测次数。
可选的，第一信息包括预设候选位置信息；处理器1503具体用于，在至少两个搜索空间中的预设候选位置信息指示的候选位置处发送下行控制信息。
可选的，第一信息包括预设搜索空间信息；处理器1503具体用于，在至少两个搜索空间中的所预设搜索空间信息指示的预设搜索空间中发送下行控制信息。
可选的，第一信息包括预设聚合等级信息；处理器1503具体用于，在至少两个搜索空间中的预设聚合等级的候选位置处发送下行控制信息。
本申请实施例又一方面还提供一种网络端设备，执行上述实施例中的盲检测次数的获取方法，具有相同或相似的技术特征和技术效果。如图15所示，网络设备，包括：
收发器1501，用于接收终端设备发送的终端设备支持的最大盲检测次数；
处理器1503，用于根据最大盲检测次数和网络设备为终端设备配置的搜索空间的配置信息，确定终端设备在搜索空间内所能进行的最大盲检测次数。
可选的，搜索空间的配置信息包括如下中的至少一项：
子载波间隔信息、时隙类型信息、符号数信息、带宽信息、资源块数信息、资源单元组数信息、资源单元组绑定数信息、控制信道元素数信息、搜索空间的类型信息、搜索空间包含的聚合级别种类信息、搜索空间中下行控制信息的长度种类信息、迷你时隙指示信息或聚合时隙所包括的时隙数量信息。
可选的，处理器1503具体用于，根据最大盲检测次数、配置信息和终端设备的多天线配置信息，确定终端设备在搜索空间内所能进行的最大盲检测次数；其中，多天线配置信息包括如下中的至少一项：天线数、码字数和层数。
可选的，处理器1503具体用于，根据最大盲检测次数、终端设备需监听的波束和/或传输点数目以及配置信息，确定终端设备在每个波束和/或传输点所能进行的最大盲检测次数。
可选的，处理器1503具体用于，根据最大盲检测次数、聚合载波数目信息和配置信息，确定终端设备在各载波上的搜索空间内所能进行的最大盲检测次数。
本申请实施例还提供一种程序，该程序在被处理器执行时用于执行上述实施例中终端设备侧的下行控制信息的传输方法。本申请实施例还提供一种程序产品，例如计算机可读存储介质，包括如上所述的程序。本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述实施例中终端设备侧的下行控制信息的传输方法。
本申请实施例还提供一种程序，该程序在被处理器执行时用于执行上述实施例中终端设备侧的盲检测次数的获取方法。本申请实施例还提供一种程序产品，例如计算机可读存储介质，包括如上所述的程序。本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述实施例中终端设备侧的盲检测次数的获取方法。
本申请实施例还提供一种程序，该程序在被处理器执行时用于执行上述实施例中网络设备侧的下行控制信息的传输方法。本申请实施例还提供一种程序产品，例如计算机可读 存储介质，包括如上所述的程序。本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述实施例中网络设备侧的下行控制信息的传输方法。
本申请实施例还提供一种程序，该程序在被处理器执行时用于执行上述实施例中网络设备侧的盲检测次数的获取方法。本申请实施例还提供一种程序产品，例如计算机可读存储介质，包括如上所述的程序。本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述实施例中网络设备侧的盲检测次数的获取方法。
另外，需要说明的是，应理解以上网络设备、终端设备的各个模块的划分仅仅是一种逻辑功能的划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (54)

  1. 一种下行控制信息的传输方法，其特征在于，包括：
    终端设备确定在预设时间段内存在至少两个搜索空间；
    所述终端设备根据第一信息，在所述至少两个搜索空间中进行盲检测；其中，所述第一信息用于指示所述终端设备在所述至少两个搜索空间内进行盲检测，所述终端设备在所述至少两个搜索空间内的盲检测次数总和不超过所述终端设备在所述预设时间段内的最大盲检测次数。
  2. 根据权利要求1所述的方法，其特征在于，所述至少两个搜索空间中的任意两个搜索空间的周期不同，或者，周期和偏移均相同。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一信息包括如下中的至少一项：
    下行控制信息的长度信息、预设候选位置信息、预设搜索空间信息、至少一个所述搜索空间的优先级信息、预设聚合等级信息。
  4. 根据权利要求1至3任一项所述的方法，其特征在于，所述终端设备根据第一信息，在所述至少两个搜索空间中进行盲检测，包括：
    所述终端设备盲检测所述至少两个搜索空间中的部分搜索空间；
    若所述终端设备的盲检测次数未达到最大盲检测次数，所述终端设备在所述至少两个搜索空间中除所述部分搜索空间之外的其它搜索空间进行盲检测。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述第一信息包括至少一个所述搜索空间的优先级信息；所述终端设备根据第一信息，在所述至少两个搜索空间中进行盲检测，包括：
    所述终端设备根据所述优先级信息，在所述至少两个搜索空间中进行盲检测。
  6. 根据权利要求5所述的方法，其特征在于，所述终端设备根据所述优先级信息，在所述至少两个搜索空间中进行盲检测，包括：
    所述终端设备按优先级由高至低的顺序依次在所述至少两个搜索空间中进行盲检测，直至检测到下行控制信息、或者盲检测次数达到所述终端设备的最大盲检测次数、或者所述终端设备完成对所述至少两个搜索空间的盲检测。
  7. 根据权利要求5或6所述的方法，其特征在于，所述方法还包括：
    所述终端设备根据如下中的至少一项：所述搜索空间的类型信息、所述搜索空间的周期、所述搜索空间的子载波间隔信息、所述搜索空间占用的符号信息、所述搜索空间在时隙内的起始位置信息，确定所述至少两个搜索空间的优先级。
  8. 根据权利要求7所述的方法，其特征在于，所述搜索空间类型包括公共搜索空间和专用搜索空间；
    其中，所述公共搜索空间的优先级高于所述专用搜索空间的优先级。
  9. 根据权利要求1至8中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备接收网络设备发送的所述第一信息。
  10. 根据权利要求1至9中任一项所述的方法，其特征在于，所述终端设备根据第一信息，在所述至少两个搜索空间中进行盲检测之前，所述方法还包括：
    所述终端设备确定所述至少两个搜索空间对应的盲检测次数之和大于所述终端设备的最大盲检测次数。
  11. 一种盲检测次数的获取方法，其特征在于，所述方法包括：
    终端设备接收网络设备发送的第二信息，所述第二信息包括子载波间隔信息；
    所述终端设备根据所述子载波间隔信息，确定所述终端设备在搜索空间内所能进行的最大盲检测次数。
  12. 根据权利要求11所述的方法，其特征在于，所述子载波间隔信息指示的子载波间隔大于15kHz，则所述终端设备在所述搜索空间内的最大盲检测次数小于44。
  13. 根据权利要求11或12所述的方法，其特征在于，所述子载波间隔信息指示的子载波间隔越大，所述最大盲检测次数越小。
  14. 根据权利要求11至13任一项所述的方法，其特征在于，所述终端设备根据所述子载波间隔信息，确定所述终端设备在搜索空间内的最大盲检测次数，包括：
    所述终端设备根据聚合载波数目信息以及所述子载波间隔信息，确定所述终端设备在各载波上的搜索空间中的最大盲检测次数。
  15. 根据权利要求14所述的方法，其特征在于，所述终端设备在搜索空间内的最大盲检测次数为所述终端设备在所述各载波上的最大盲检测次数与聚合载波个数的乘积。
  16. 根据权利要求11至15中任一项所述的方法，其特征在于，所述终端设备接收网络设备发送的第二信息之前，所述方法还包括：
    所述终端设备向网络设备发送所述终端设备能够支持的最大盲检测次数。
  17. 一种下行控制信息的传输方法，其特征在于，包括：
    网络设备确定待发送的下行控制信息；
    所述网络设备根据第一信息，在预设时间段内的至少两个搜索空间内发送所述下行控制信息；
    其中，所述第一信息用于指示终端设备在所述至少两个搜索空间内接收所述下行控制信息。
  18. 根据权利要求17所述的方法，其特征在于，所述至少两个搜索空间中的任意两个搜索空间的周期不同，或者，周期和偏移均相同。
  19. 根据权利要求17或18所述的方法，其特征在于，所述第一信息包括如下中的至少一项：
    下行控制信息的长度信息、预设候选位置信息、预设搜索空间信息、至少一个所述搜索空间的优先级信息、预设聚合等级信息。
  20. 根据权利要求17至19中任一项所述的方法，其特征在于，所述第一信息包括至少一个所述搜索空间的优先级信息；所述网络设备根据第一信息在所述至少两个搜索空间内发送下行控制信息，包括：
    所述网络设备根据所述优先级信息，在所述至少两个搜索空间内发送下行控制信息。
  21. 根据权利要求20所述的方法，其特征在于，所述网络设备根据所述优先级信息，在所述至少两个搜索空间内发送下行控制信息，包括：
    所述网络设备按优先级由高至低的顺序，在所述至少两个搜索空间内发送下行控制信息。
  22. 根据权利要求20或21所述的方法，其特征在于，所述方法还包括：
    所述网络设备根据如下中的至少一项：所述搜索空间的类型信息、所述搜索空间的周期、所述搜索空间的子载波间隔信息、所述搜索空间占用的符号信息、所述搜索空间在时隙内的起始位置信息，确定所述至少两个搜索空间的优先级。
  23. 根据权利要求22所述的方法，其特征在于，所述搜索空间类型包括公共搜索空间和专用搜索空间；
    其中，所述公共搜索空间的优先级高于所述专用搜索空间的优先级。
  24. 根据权利要求17至23中任一项所述的方法，其特征在于，所述方法还包括：
    所述网络设备向所述终端设备发送所述第一信息。
  25. 一种盲检测次数的获取方法，其特征在于，所述方法包括：
    网络设备接收终端设备发送的所述终端设备能够支持的最大盲检测次数；
    所述网络设备向所述终端设备发送第二信息，所述第二信息包括子载波间隔信息；
    其中，所述子载波间隔信息用于确定所述终端设备在搜索空间内所能进行的最大盲检测次数。
  26. 一种装置，其特征在于，包括：
    搜索空间检测模块，用于确定在预设时间段内存在至少两个搜索空间；
    盲检测模块，用于根据第一信息，在所述至少两个搜索空间中进行盲检测；其中，所述第一信息用于指示所述装置在所述至少两个搜索空间内进行盲检测，所述装置在所述至少两个搜索空间内的盲检测次数总和不超过所述装置在所述预设时间段内的最大盲检测次数。
  27. 根据权利要求26所述的装置，其特征在于，所述至少两个搜索空间中的任意两个搜索空间的周期不同，或者，周期和偏移均相同。
  28. 根据权利要求26或27所述的装置，其特征在于，所述第一信息包括如下中的至少一项：
    下行控制信息的长度信息、预设候选位置信息、预设搜索空间信息、至少一个所述搜索空间的优先级信息、预设聚合等级信息。
  29. 根据权利要求26至28中任一项所述的装置，其特征在于，盲检测模块具体用于，盲检测所述至少两个搜索空间中的部分搜索空间；
    若盲检测次数未达到最大盲检测次数，在所述至少两个搜索空间中除所述部分搜索空间之外的其它搜索空间进行盲检测。
  30. 根据权利要求26至29中任一项所述的装置，其特征在于，所述第一信息包括至少一个所述搜索空间的优先级信息；所述盲检测模块具体用于，根据所述优先级信息，在所述至少两个搜索空间中进行盲检测。
  31. 根据权利要求30所述的装置，其特征在于，所述盲检测模块具体用于，按优先级由高至低的顺序依次在所述至少两个搜索空间中进行盲检测，直至检测到下行控制信息、或者盲检测次数达到所述装置的最大盲检测次数、或者完成对所述至少两个搜索空间的盲检测。
  32. 根据权利要求30或31所述的装置，其特征在于，所述装置还包括优先级获取模块，所述优先级获取模块用于，根据如下中的至少一项：所述搜索空间的类型信息、所述 搜索空间的周期、所述搜索空间的子载波间隔信息、所述搜索空间占用的符号信息、所述搜索空间在时隙内的起始位置信息，确定所述至少两个搜索空间的优先级。
  33. 根据权利要求32所述的装置，其特征在于，所述搜索空间类型包括公共搜索空间和专用搜索空间；
    其中，所述公共搜索空间的优先级高于所述专用搜索空间的优先级。
  34. 根据权利要求26至33中任一项所述的装置，其特征在于，所述装置还包括接收模块，用于接收网络设备发送的第一信息。
  35. 根据权利要求26至34中任一项所述的装置，其特征在于，所述盲检测模块还用于，确定所述至少两个搜索空间对应的盲检测次数之和大于所述装置的最大盲检测次数。
  36. 一种装置，其特征在于，所述装置包括：
    接收模块，用于接收网络设备发送的第二信息，所述第二信息包括子载波间隔信息；
    盲检测次数获取模块，用于根据所述子载波间隔信息，确定所述装置在所述搜索空间内所能进行的最大盲检测次数。
  37. 根据权利要求36所述的装置，其特征在于，所述子载波间隔信息指示的子载波间隔大于15kHz，则所述装置在所述搜索空间内的最大盲检测次数小于44。
  38. 根据权利要求36或37所述的装置，其特征在于，所述子载波间隔信息指示的子载波间隔越大，所述最大盲检测次数越小。
  39. 根据权利要求36至38中任一项所述的装置，其特征在于，所述盲检测次数获取模块具体用于，
    根据聚合载波数目信息以及所述子载波间隔信息，确定所述装置在各载波上的搜索空间中的最大盲检测次数。
  40. 根据权利要求39所述的装置，其特征在于，所述装置在搜索空间内的最大盲检测次数为所述装置在所述各载波上的最大盲检测次数与聚合载波个数的乘积。
  41. 根据权利要求36至40中任一项所述的装置，其特征在于，所述装置还包括：
    发送模块，用于向网络设备发送所述装置能够支持的最大盲检测次数。
  42. 一种装置，其特征在于，包括：
    下行控制信息获取模块，用于确定待发送的下行控制信息；
    下行控制信息发送模块，用于根据第一信息，在预设时间段内的至少两个搜索空间内发送下行控制信息；
    其中，所述第一信息用于指示终端设备在所述至少两个搜索空间内接收下行控制信息。
  43. 根据权利要求42所述的装置，其特征在于，所述至少两个搜索空间中的任意两个搜索空间的周期不同，或者，周期和偏移均相同。
  44. 根据权利要求42或43所述的装置，其特征在于，所述第一信息包括如下中的至少一项：
    下行控制信息的长度信息、预设候选位置信息、预设搜索空间信息、至少一个所述搜索空间的优先级信息、预设聚合等级信息。
  45. 根据权利要求42至44中任一项所述的装置，其特征在于，所述第一信息包括至少一个所述搜索空间的优先级信息；所述下行控制信息发送模块具体用于，根据所述优先级信息，在所述至少两个搜索空间内发送下行控制信息。
  46. 根据权利要求45所述的装置，其特征在于，所述下行控制信息发送模块具体用于，按优先级由高至低的顺序，在所述至少两个搜索空间内发送下行控制信息。
  47. 根据权利要求45或46所述的装置，其特征在于，所述装置还包括：
    优先级获取模块，用于根据如下中的至少一项：所述搜索空间的类型信息、所述搜索空间的周期、所述搜索空间的子载波间隔信息、所述搜索空间占用的符号信息、所述搜索空间在时隙内的起始位置信息，确定所述至少两个搜索空间的优先级。
  48. 根据权利要求47所述的装置，其特征在于，所述搜索空间类型包括公共搜索空间和专用搜索空间；
    其中，所述公共搜索空间的优先级高于所述专用搜索空间的优先级。
  49. 根据权利要求42至48中任一项所述的装置，其特征在于，所述装置还包括：
    发送模块，用于向所述终端设备发送所述第一信息。
  50. 一种装置，其特征在于，包括：
    接收模块，用于接收终端设备发送的所述终端设备能够支持的最大盲检测次数；
    发送模块，用于向所述终端设备发送第二信息，所述第二信息包括子载波间隔信息；
    其中，所述子载波间隔信息用于确定所述终端设备在搜索空间内所能进行的最大盲检测次数。
  51. 一种电子设备，其特征在于，包括：处理器、存储器和计算机程序；
    所述计算机程序存储在所述存储器中，所述处理器运行所述计算机程序执行如权利要求1-25中任一项所述方法。
  52. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有指令，所述指令被处理器执行时实现上述权利要求1至25中任一项所述方法。
  53. 一种芯片，其特征在于，包括存储器和处理器，所述存储器用于存储计算机程序，所述处理器用于从所述存储器中调用并运行所述计算机程序，使得安装有所述芯片的电子设备执行如权利要求1-25中任一项所述方法。
  54. 一种计算机程序产品，其特征在于，所述计算机程序产品包括计算机程序代码，当计算机程序代码在计算机上运行时，使得计算机执行如权利要求1至25中任一项所述方法。
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