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WO2019192304A1 - Procédé de détection de canal aveugle, procédé de transmission de signal et dispositif associé - Google Patents

Procédé de détection de canal aveugle, procédé de transmission de signal et dispositif associé Download PDF

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Publication number
WO2019192304A1
WO2019192304A1 PCT/CN2019/078131 CN2019078131W WO2019192304A1 WO 2019192304 A1 WO2019192304 A1 WO 2019192304A1 CN 2019078131 W CN2019078131 W CN 2019078131W WO 2019192304 A1 WO2019192304 A1 WO 2019192304A1
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WIPO (PCT)
Prior art keywords
time domain
side device
pdcch
specific time
domain range
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
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PCT/CN2019/078131
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English (en)
Chinese (zh)
Inventor
王磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Academy of Telecommunications Technology CATT
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China Academy of Telecommunications Technology CATT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201810448324.XA external-priority patent/CN110351010B/zh
Application filed by China Academy of Telecommunications Technology CATT filed Critical China Academy of Telecommunications Technology CATT
Priority to US16/982,995 priority Critical patent/US11831425B2/en
Priority to EP19780611.0A priority patent/EP3780434A4/fr
Priority to JP2020551424A priority patent/JP7216740B2/ja
Priority to KR1020207030047A priority patent/KR102466252B1/ko
Publication of WO2019192304A1 publication Critical patent/WO2019192304A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a channel blind detection method, a signal transmission method, and related devices.
  • a network side device may configure a plurality of search spaces for the terminal, and different search spaces have the same or different listening periods.
  • PDCCH candidates physical downlink control channel candidates
  • the blind detection capability in a time domain resource (for example, a time slot) is limited, but in order to ensure transmission flexibility, a certain number of PDCCH candidates need to be configured in each search space, thereby resulting in one
  • the number of times that the terminal needs to be blindly detected in the time domain resource exceeds the maximum blind detection capability of the terminal in the time domain resource, thereby making the performance of the terminal relatively low.
  • the embodiments of the present disclosure provide a channel blind detection method, a signal transmission method, and related devices to solve the problem that the performance of the terminal side device is relatively low.
  • an embodiment of the present disclosure provides a channel blind detection method, including:
  • the terminal side device If the number of times the terminal side device needs to be blindly detected exceeds the maximum blind detection capability in a specific time domain, the terminal side device skips a part of the blind detection opportunity in the specific time domain range, and performs channel blind detection on the remaining blind detection opportunities. ;
  • the maximum blind detection capability is the maximum number of blind detections of the terminal-side device in the specific time domain range, and the number of times that the terminal-side device needs to perform blind detection within the specific time domain does not exceed the number of times. The maximum blind detection capability.
  • the terminal side device skips a partial blind check opportunity within the specific time domain range, and performs channel blind check on the remaining blind check opportunities, including at least one of the following:
  • the terminal side device skips a partial PDCCH candidate position of at least one aggregation level (AL) in the search space in the specific time domain range, and performs channel blind detection on the remaining PDCCH candidate positions;
  • A aggregation level
  • the terminal side device skips part of the search space in the specific time domain range, and performs channel blind detection in the remaining search spaces;
  • the terminal side device skips the search space in the control resource set (CORESET) in the specific time domain range, and performs channel blind detection in the search space in the remaining CORESET.
  • CORESET control resource set
  • the terminal side device skips the partial search space in the specific time domain range, including:
  • the terminal side device continuously skips the search space in the partial PDCCH monitoring opportunity in the specific time domain range according to the time sequence in which the monitoring opportunity occurs;
  • the terminal side device skips the search space in the partial PDCCH listening opportunity in the specific time domain range according to the time sequence in which the listening opportunities appear.
  • the terminal side device skips the search space in the partial PDCCH listening opportunity in the specific time domain range according to the chronological order in which the listening opportunities occur, including:
  • the terminal side device selects a part of the PDCCH listening opportunity in the PDCCH listening opportunity set according to the time sequence in which the listening opportunity occurs, where the PDCCH monitoring opportunity set is all PDCCHs in the specific time domain range when the first interval is selected. Listening opportunity
  • the PDCCH interception in the current PDCCH monitoring opportunity set is not selected.
  • the terminal side device skips a search space in the PDCCH listening opportunity that is not selected.
  • the stopping condition of the step of selecting a partial PDCCH listening opportunity in the PDCCH listening opportunity set by the interval includes:
  • the number of times that the blind detection is required in the selected PDCCH monitoring opportunity is equal to the maximum blind detection capability, and the number of CCEs is less than or equal to the maximum number of CCEs; or
  • the number of CCEs in the selected PDCCH listening opportunity is equal to the maximum number of CCEs, and the number of times that the blind detection is required is less than or equal to the maximum blind detection capability; or
  • the number of blind detections corresponding to all PDCCH candidate locations in the selected PDCCH listening opportunity exceeds the maximum blind detection capability, or the number of corresponding CCEs exceeds the maximum number of CCEs, and the PDCCH listening opportunity monitored by the terminal side device Does not include part of the PDCCH listening opportunity selected by the current interval; or
  • the number of times that the selected PDCCH monitoring opportunity needs to be blinded exceeds the maximum blind detection capability or the number of CCEs exceeds the maximum.
  • the number of CCEs, and the PDCCH listening opportunity monitored by the terminal side device does not include the one PDCCH monitoring opportunity.
  • the terminal side device skips a partial PDCCH candidate location of at least one AL in the search space in the specific time domain range, including:
  • the terminal side device sequentially skips each AL part in each search space in the specific time domain range. a PDCCH candidate location until the number of times that a blind check is required in a specific time domain does not exceed the maximum blind detection capability; or
  • the terminal side device skips a partial PDCCH candidate location of other ALs in each search space in the specific time domain range, where the other AL is an AL having multiple PDCCH candidate locations;
  • the terminal side device skips a partial PDCCH candidate position of the AL in each search space in the specific time domain range according to a specific AL order, until the terminal side device needs blind detection in the specific time domain range.
  • the number does not exceed the maximum blind detection capability, wherein, in the process of skipping the PDCCH candidate location, the terminal side device pauses to skip the PDCCH candidate location of the AL for the AL with only one PDCCH candidate location remaining.
  • the terminal side device performs the skipping of the PDCCH candidate position according to the first search space and then the opportunity, and then the sequence of the AL is not skipped until the number of times that the blind detection needs to be exceeded in the specific time domain range.
  • the maximum blind detection capability is not limited
  • the terminal side device skips a part of the search space in the specific time domain range, including:
  • the terminal side device skips part of the search space in the specific time domain range according to the size of the listening period.
  • the terminal side device skips part of the search space in the specific time domain range according to a Radio Network Temporary Identity (RNTI); or
  • RNTI Radio Network Temporary Identity
  • the terminal side device skips a UE specific search space (USS) in a specific CORESET, wherein the specific CORESET is a CORESET for transmitting a Common Search Space (CSS).
  • USS UE specific search space
  • CSS Common Search Space
  • the terminal side device skips a search space within a portion of the CORESET within the specific time domain range, including:
  • the terminal side device skips a search space in a part of the CORESET in the specific time domain range according to a mapping manner
  • the terminal side device preferentially skips a search space within a specific CORESET within the specific time domain range, wherein the specific CORESET is a Quasi-Colocation (QCL) of multiple CORESETs in the specific time domain range.
  • the terminal side device skips the search space in the partial CORESET in the specific time domain range according to a mapping manner, including:
  • the terminal side device preferentially skips a search space within the locally mapped CORESET within the specific time domain range;
  • the terminal side device preferentially skips the search space in the CORESET of the distributed mapping in the specific time domain range.
  • the specific time domain range is a slot.
  • an embodiment of the present disclosure further provides a signal transmission method, including:
  • the network side device determines a part of the blind detection opportunity in the specific time domain range skipped by the terminal side device, where
  • the maximum blind detection capability is the maximum number of blind detections of the terminal side device in the specific time domain range
  • the network side device transmits a signal in the remaining blind detection opportunities, wherein the number of times that the terminal side device needs to be blindly detected within the specific time domain does not exceed the maximum blind detection capability.
  • the network side device determines a partial blind check opportunity within the specific time domain range skipped by the terminal side device, including at least one of the following:
  • the network side device determines a search space within a part of the CORESET within the specific time domain range skipped by the terminal side device.
  • the network side device determines that the terminal side device skips within the specific time domain range Part of the search space, including:
  • the network side device determines, according to the chronological order in which the listening opportunities occur, the search space in the partial PDCCH listening opportunity in the specific time domain range skipped by the terminal side device interval, including:
  • the network side device selects a part of the PDCCH listening opportunity in the PDCCH listening opportunity set according to the time sequence in which the listening opportunity occurs, where the PDCCH monitoring opportunity set is all PDCCHs in the specific time domain range when the first interval is selected. Listening opportunity
  • the PDCCH interception in the current PDCCH monitoring opportunity set is not selected.
  • the terminal side device skips a search space in the PDCCH listening opportunity that is not selected.
  • the stopping condition of the step of selecting a partial PDCCH listening opportunity in the PDCCH listening opportunity set by the interval includes:
  • the number of times that the blind detection is required in the selected PDCCH monitoring opportunity is equal to the maximum blind detection capability, and the number of CCEs is less than or equal to the maximum number of CCEs; or
  • the number of CCEs in the selected PDCCH listening opportunity is equal to the maximum number of CCEs, and the number of times that the blind detection is required is less than or equal to the maximum blind detection capability; or
  • the number of blind detections corresponding to all PDCCH candidate locations in the selected PDCCH listening opportunity exceeds the maximum blind detection capability, or the number of corresponding CCEs exceeds the maximum number of CCEs, and the PDCCH listening opportunity monitored by the terminal side device Does not include part of the PDCCH listening opportunity selected by the current interval; or
  • the number of times that the selected PDCCH monitoring opportunity needs to be blinded exceeds the maximum blind detection capability or the number of CCEs exceeds the maximum.
  • the number of CCEs, and the PDCCH listening opportunity monitored by the terminal side device does not include the one PDCCH monitoring opportunity.
  • the network side device determines a partial PDCCH candidate location of the at least one AL in the search space in the specific time domain range skipped by the terminal side device, including:
  • the network side device determines each search in the specific time domain range that the terminal side device sequentially skips in sequence a partial PDCCH candidate location for each AL in space;
  • the network side device determines a partial PDCCH candidate of other ALs in each search space in the specific time domain range skipped by the terminal side device. a location, wherein the other AL is an AL having multiple PDCCH candidate locations; or
  • the terminal side device Determining, by the network side device, a partial PDCCH candidate location of the AL in each search space in the specific time domain range skipped by the terminal side device according to a specific AL sequence, where the PDCCH candidate location is skipped For the AL with only one PDCCH candidate location remaining, the terminal side device pauses to skip the PDCCH candidate location of the AL.
  • the terminal side device performs the skipping of the PDCCH candidate position according to the first search space and then the opportunity, and then the sequence of the AL is not skipped until the number of times that the blind detection needs to be exceeded in the specific time domain range.
  • the maximum blind detection capability is not limited
  • the network side device determines the partial search space within the specific time domain range skipped by the terminal side device, including:
  • the network side device determines, according to the size of the listening period, part of the search space in the specific time domain range skipped by the terminal side device; or
  • the network side device determines a USS within a specific CORESET skipped by the terminal side device, wherein the specific CORESET is a CORESET for transmitting a CSS.
  • the network side device determines a search space within a part of the CORESET within the specific time domain range skipped by the terminal side device, including:
  • the network side device Determining, by the network side device, a search space within a specific CORESET within the specific time domain range skipped by the terminal side device, wherein the specific CORESET is a QCL and a target among multiple CORESETs in the specific time domain range
  • the QCL has the lowest matching CORESET, and the target QCL is the QCL obtained by the beam management.
  • the network side device determines, according to a mapping manner, a search space within a part of the CORESET within the specific time domain range skipped by the terminal side device, including:
  • the network side device determines a search space within the CORESET of the distributed mapping within the specific time domain range that the terminal side device preferentially skips.
  • the specific time domain range is a slot.
  • the embodiment of the present disclosure further provides a terminal side device, including:
  • a blind detection module if the number of times the terminal side device needs to be blindly detected exceeds the maximum blind detection capability within a specific time domain, skipping part of the blind detection opportunities in the specific time domain range, and performing the remaining blind detection opportunities Channel blind detection;
  • the maximum blind detection capability is the maximum number of blind detections of the terminal-side device in the specific time domain range, and the number of times that the terminal-side device needs to perform blind detection within the specific time domain does not exceed the number of times. The maximum blind detection capability.
  • the blind detection module includes at least one of the following:
  • a first blind detection unit configured to skip a part of the physics of at least one aggregation level AL in the search space in the specific time domain range if the number of times the terminal side device needs to be blindly detected exceeds the maximum blind detection capability within a specific time domain range a downlink control signal PDCCH candidate location, and performing channel blind detection on the remaining PDCCH candidate locations;
  • a second blind detection unit configured to skip part of the search space in the specific time domain range and perform channel in the remaining search space if the number of times the terminal side device needs to perform blind detection exceeds the maximum blind detection capability within a specific time domain range Blind check;
  • a third blind detection unit configured to skip the search space in a part of the CORESET within the specific time domain range and the remaining CORESET if the number of times the terminal side device needs to be blindly detected exceeds the maximum blind detection capability within a specific time domain range
  • the search space inside performs channel blind detection.
  • the embodiment of the present disclosure further provides a network side device, including:
  • Determining a module if the number of times that the terminal side device needs to be blindly detected exceeds the maximum blind detection capability in a specific time domain, determining a partial blind detection opportunity in the specific time domain range skipped by the terminal side device, where
  • the maximum blind detection capability is the maximum number of blind detections of the terminal side device in the specific time domain range;
  • a transmission module configured to transmit a signal in the remaining blind detection opportunities, wherein the number of times that the terminal side device needs to be blindly detected within the specific time domain does not exceed the maximum blind detection capability.
  • the determining module includes at least one of the following:
  • a first determining unit configured to determine at least one of the search spaces in the specific time domain range skipped by the terminal side device if the number of times that the terminal side device needs to be blindly detected exceeds the maximum blind detection capability in a specific time domain range Part of the PDCCH candidate location of the AL;
  • a second determining unit configured to determine a partial search space within the specific time domain range skipped by the terminal side device if the number of times that the terminal side device needs to be blindly detected exceeds the maximum blind detection capability in a specific time domain range;
  • a third determining unit configured to determine, after the terminal side device skips the maximum blind detection capability, that the terminal side device skips the search in the partial CORESET within the specific time domain range space.
  • an embodiment of the present disclosure further provides a terminal side device, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor,
  • the processor reads and executes the computer program stored in the memory, the following process is performed, including: if the number of times the terminal side device needs blind detection exceeds the maximum blind detection capability within a specific time domain range, then skipping the Partial blind inspection opportunities within a specific time domain, and channel blind inspections at the remaining blind inspection opportunities;
  • the maximum blind detection capability is the maximum number of blind detections of the terminal-side device in the specific time domain range, and the number of times that the terminal-side device needs to perform blind detection within the specific time domain does not exceed the number of times. The maximum blind detection capability.
  • the skipping a partial blind check opportunity within the specific time domain range and performing a channel blind check on the remaining blind check opportunities includes at least one of the following:
  • the search space within a portion of the CORESET within the specific time domain range is skipped, and the channel search is performed in the search space within the remaining CORESET.
  • the skipping the partial search space in the specific time domain range includes:
  • the search spaces in the partial PDCCH listening opportunities in the specific time domain range are continuously skipped;
  • the interval skips the search space in the partial PDCCH listening opportunities in the specific time domain range.
  • the interval skips the search space in the partial PDCCH listening opportunity in the specific time domain range according to the chronological order in which the listening opportunities occur, including:
  • the terminal side device selects a part of the PDCCH listening opportunity in the PDCCH listening opportunity set according to the time sequence in which the listening opportunity occurs, where the PDCCH monitoring opportunity set is all PDCCHs in the specific time domain range when the first interval is selected. Listening opportunity
  • the PDCCH interception in the current PDCCH monitoring opportunity set is not selected.
  • the terminal side device skips a search space in the PDCCH listening opportunity that is not selected.
  • the stopping condition of the step of selecting a partial PDCCH listening opportunity in the PDCCH listening opportunity set by the interval includes:
  • the number of times that the blind detection is required in the selected PDCCH monitoring opportunity is equal to the maximum blind detection capability, and the number of CCEs is less than or equal to the maximum number of CCEs; or
  • the number of CCEs in the selected PDCCH listening opportunity is equal to the maximum number of CCEs, and the number of times that the blind detection is required is less than or equal to the maximum blind detection capability; or
  • the number of blind detections corresponding to all PDCCH candidate locations in the selected PDCCH listening opportunity exceeds the maximum blind detection capability, or the number of corresponding CCEs exceeds the maximum number of CCEs, and the PDCCH listening opportunity monitored by the terminal side device Does not include part of the PDCCH listening opportunity selected by the current interval; or
  • the number of times that the selected PDCCH monitoring opportunity needs to be blinded exceeds the maximum blind detection capability or the number of CCEs exceeds the maximum.
  • the number of CCEs, and the PDCCH listening opportunity monitored by the terminal side device does not include the one PDCCH monitoring opportunity.
  • the terminal side device skips a partial PDCCH candidate location of at least one AL in the search space in the specific time domain range, including:
  • partial PDCCH candidate locations of each AL in each search space in the specific time domain range are sequentially skipped until The number of remaining blind detections within a specific time domain does not exceed the maximum blind detection capability;
  • skipping in a specific AL order, a partial PDCCH candidate position of the AL in each search space in the specific time domain range until the number of blind detections required by the terminal side device in the specific time domain range does not exceed the The maximum blind detection capability, wherein, in the process of skipping the PDCCH candidate location, the terminal side device pauses to skip the PDCCH candidate location of the AL for the AL with only one PDCCH candidate location remaining.
  • the skipping a partial search space within the specific time domain range includes:
  • the terminal side device skips the USS within a specific CORESET, wherein the specific CORESET is a CORESET for transmitting CSS.
  • the terminal side device skips a search space within a portion of the CORESET within the specific time domain range, including:
  • the specific CORESET is a CORESET having the lowest matching degree between the quasi co-location QCL and the target QCL among the plurality of CORESETs in the specific time domain range
  • the target QCL is the QCL obtained by beam management.
  • an embodiment of the present disclosure further provides a network side device, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor,
  • Determining, in the specific time domain, that the number of times the terminal side device needs to perform the blind detection exceeds the maximum blind detection capability determining a partial blind detection opportunity in the specific time domain range skipped by the terminal side device, where the maximum blindness
  • the detection capability is the maximum number of blind detections of the terminal side device in the specific time domain range
  • Determining, in the specific time domain, that the number of times the terminal side device needs to perform the blind detection exceeds the maximum blind detection capability determining a partial blind detection opportunity in the specific time domain range skipped by the terminal side device, where the maximum blindness
  • the detection capability is the maximum number of blind detections of the terminal side device in the specific time domain range
  • the signal is transmitted in the remaining blind detection opportunities, wherein the number of times that the terminal side device needs to be blindly detected within the specific time domain does not exceed the maximum blind detection capability.
  • the determining, by the terminal side device, a partial blind check opportunity within the specific time domain range including at least one of the following:
  • determining, in a chronological order in which the listening opportunities occur determining a search space in the partial PDCCH listening opportunity in the specific time domain range skipped by the terminal side device interval, including:
  • the PDCCH interception in the current PDCCH monitoring opportunity set is not selected.
  • the terminal side device skips a search space in the PDCCH listening opportunity that is not selected.
  • the stopping condition of the step of selecting a partial PDCCH listening opportunity in the PDCCH listening opportunity set by the interval includes:
  • the number of times that the blind detection is required in the selected PDCCH monitoring opportunity is equal to the maximum blind detection capability, and the number of CCEs is less than or equal to the maximum number of CCEs; or
  • the number of CCEs in the selected PDCCH listening opportunity is equal to the maximum number of CCEs, and the number of times that the blind detection is required is less than or equal to the maximum blind detection capability; or
  • the number of blind detections corresponding to all PDCCH candidate locations in the selected PDCCH listening opportunity exceeds the maximum blind detection capability, or the number of corresponding CCEs exceeds the maximum number of CCEs, and the PDCCH listening opportunity monitored by the terminal side device Does not include part of the PDCCH listening opportunity selected by the current interval; or
  • the number of times that the selected PDCCH monitoring opportunity needs to be blinded exceeds the maximum blind detection capability or the number of CCEs exceeds the maximum.
  • the number of CCEs, and the PDCCH listening opportunity monitored by the terminal side device does not include the one PDCCH monitoring opportunity.
  • the determining, by the terminal side device, a partial PDCCH candidate location of at least one AL in a search space within the specific time domain range including:
  • the terminal side device Determining, in a specific AL order, a partial PDCCH candidate location of the AL in each search space within the specific time domain range skipped by the terminal side device, where only the remaining PDCCH candidate location is skipped
  • the AL of one PDCCH candidate location the terminal side device pauses to skip the PDCCH candidate location of the AL.
  • the determining, in the specific time domain range partial search space skipped by the terminal side device includes:
  • the determining, by the terminal side device, the search space within the partial CORESET within the specific time domain range including:
  • the target QCL is the QCL obtained by beam management.
  • an embodiment of the present disclosure further provides a computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements a channel blind detection method provided by an embodiment of the present disclosure
  • the steps in the signal transmission method provided by the embodiments of the present disclosure are implemented when the program is executed by the processor.
  • the terminal side device if the number of times the terminal side device needs to be blindly detected exceeds the maximum blind detection capability in a specific time domain range, the terminal side device skips a part of the blind detection opportunity in the specific time domain range, and the rest The blind detection opportunity performs channel blind detection; wherein the maximum blind detection capability is the maximum number of blind detections of the terminal side device in the specific time domain range, and the terminal side device remains in the specific time domain range The number of times that blind detection is required does not exceed the maximum blind detection capability. Because the partial blind detection opportunity is skipped, the number of times that the terminal side device needs to be blindly detected in the specific time domain does not exceed the maximum blind detection capability, thereby improving the performance of the terminal side device.
  • FIG. 1 is a network structure diagram to which an embodiment of the present disclosure is applicable
  • FIG. 2 is a flowchart of a channel blind detection method provided by an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of a skip blind check opportunity provided by an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of another skip blind detection opportunity provided by an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of another skip blind detection opportunity provided by an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of a listening opportunity provided by an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of another skip blind detection opportunity provided by an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of another monitoring opportunity provided by an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of another skip blind detection opportunity provided by an embodiment of the present disclosure.
  • FIG. 10 is a schematic diagram of another skip blind detection opportunity provided by an embodiment of the present disclosure.
  • FIG. 11 is a flowchart of a channel blind detection method according to an embodiment of the present disclosure.
  • FIG. 12 is a structural diagram of a terminal side device according to an embodiment of the present disclosure.
  • FIG. 13 is a structural diagram of another terminal side device according to an embodiment of the present disclosure.
  • FIG. 14 is a structural diagram of a network side device according to an embodiment of the present disclosure.
  • FIG. 15 is a structural diagram of another network side device according to an embodiment of the present disclosure.
  • FIG. 16 is a structural diagram of another terminal side device according to an embodiment of the present disclosure.
  • FIG. 17 is a structural diagram of another network side device according to an embodiment of the present disclosure.
  • FIG. 1 is a network structure diagram applicable to an embodiment of the present disclosure.
  • the terminal side device 11 and the network side device 12 are included.
  • the terminal device 11 may be a user equipment (User Equipment, UE) or other terminal device, such as a mobile phone, a tablet personal computer, a laptop computer, and a personal digital assistant.
  • a terminal device such as a PDA, a mobile Internet device (MID), or a wearable device (Wearable Device), etc., it should be noted that the specific type of the terminal device 11 is not limited in the embodiment of the present disclosure. .
  • the terminal device 11 can communicate with the network device 12, and the network device 12 can be a base station, such as a macro station, an LTE eNB, a 5G NR NB, etc., and the network side device 12 can also be a small station, such as a low power node (LPN). : low power node), pico, femto and other small stations, or network side devices can access points (AP, access point); base stations can also be central units (CU, central unit) and its management is controlled and controlled by multiple transmissions A network node composed of a TRP (Transmission Reception Point). It should be noted that the specific type of the network side device 12 is not limited in the embodiment of the present disclosure.
  • LPN low power node
  • AP access point
  • base stations can also be central units (CU, central unit) and its management is controlled and controlled by multiple transmissions
  • TRP Transmission Reception Point
  • FIG. 2 is a flowchart of a channel blind detection method according to an embodiment of the present disclosure. As shown in FIG. 2, the method includes the following steps:
  • the terminal If the number of times the terminal needs to perform blind detection exceeds the maximum blind detection capability in a specific time domain, the terminal skips a part of the blind detection opportunity in the specific time domain range, and performs channel blind detection on the remaining blind detection opportunities;
  • the maximum blind detection capability is the maximum number of blind detections of the terminal in the specific time domain range, and the number of remaining blind detections required by the terminal in the specific time domain does not exceed the maximum blind detection. ability.
  • the specific time domain range may be a slot, for example, a slot, and of course, other time domain ranges, for example, one subframe or multiple symbols, etc., which are not limited thereto.
  • the number of times that the terminal needs the blind detection in the specific time domain range may be determined according to the configuration in the specific time domain range, and the specific determination manner is not limited in the embodiment of the present disclosure.
  • the maximum blind detection capability described above may be pre-configured or defined in the protocol, such as 44, 46 and other maximum blind detection times.
  • the foregoing skipping the partial blind detection opportunity in the specific time domain range may be, skipping at least one of the partial PDCCH candidate location and the partial search space and the like in the specific time domain range, so that the terminal is in the specific time domain.
  • the number of remaining blind detections in the range does not exceed the maximum blind detection capability. That is to say, in the embodiment of the present disclosure, the blind check opportunity may be a resource such as a PDCCH candidate location or a search space that the terminal needs to perform blind detection.
  • the remaining blind detection opportunities may be blind detection opportunities other than the skipped partial blind detection opportunities in the specific time range, for example, un skipped PDCCH candidate locations and partial search spaces.
  • the number of times that the terminal needs to perform blind detection within the specific time domain range does not exceed the maximum blind detection capability, which may be understood as, besides the terminal skipping part of the blind detection opportunity,
  • the number of blind checks that the terminal needs to perform within the specific time domain mentioned above does not exceed the maximum blind detection capability.
  • the number of times that the above-mentioned remaining need for blind detection is the number of times that the terminal needs to perform blind detection in the specific time domain range after the above skip operation. For example, as shown in the above example, the number of blind detections required by the terminal in a slot is 49, and the maximum blind detection capability is 44.
  • the terminal can skip a monitoring opportunity. For example, the terminal is no longer in the third PDCCH monitoring occasion (monitoring occasion).
  • the timing relationship of skipping the partial blind detection opportunity in the specific time domain range and channel blind detection in the remaining blind detection opportunities is not limited, for example, First, skip the partial blind detection opportunity in the specific time domain range, and then perform channel blind detection on the remaining blind detection opportunities; or, may, perform channel blind detection on the remaining blind detection opportunities, and then skip the specific time. Partial blind inspection opportunities within the domain; or may be, the two are spaced apart.
  • the terminal may skip the partial blind detection opportunity in the specific time domain range, so that the number of times that the terminal needs to be blindly detected in the specific time domain range does not exceed the maximum blind detection capability, and the remaining blindness
  • the check opportunity performs channel blind detection to improve the performance of the terminal.
  • the system performance of the communication system can be ensured.
  • the terminal may skip the partial blind detection opportunity according to a certain rule.
  • a certain rule For example: blind detection of PDCCH candidate
  • the foregoing rules may be pre-configured by the terminal, or pre-defined in the protocol, or determined by the network side device and the terminal in advance, and the following describes how to skip the partial blind detection opportunity in a specific implementation manner.
  • the foregoing terminal skips a part of the blind detection opportunity in the specific time domain range, and performs channel blind detection on the remaining blind detection opportunities, including at least one of the following:
  • the terminal skips a partial PDCCH candidate location (PDCCH candidate) of at least one AL in the search space in the specific time domain range, and performs channel blind detection on the remaining PDCCH candidate locations;
  • PDCCH candidate partial PDCCH candidate location
  • the terminal skips part of the search space in the specific time domain range, and performs channel blind detection in the remaining search spaces;
  • the terminal skips the search space within a portion of the CORESET within the specific time domain range, and performs channel blind detection in the search space within the remaining CORESET.
  • the partial PDCCH candidate location that skips at least one AL may be, select part or all of the AL, and skip the partial PDCCH candidate location of each AL in the selected AL, and may ensure that at least one PDCCH candidate location exists in each AL. It is not skipped. That is, the partial PDCCH candidate location of the at least one AL may be a partial PDCCH candidate location of each of the at least one AL, that is, at least one PDCCH candidate location per AL is not skipped.
  • the partial PDCCH candidate position of the at least one AL may be skipped, and the partial PDCCH candidate positions of the at least one AL in each search space may be skipped, that is, the PDCCH candidate positions skipped in each search space may be the same. .
  • the skipping is performed according to the AL, it is ensured that the number of times that the terminal needs to be blindly detected in the specific time domain does not exceed the maximum blind detection capability, and the blind detection performance of the terminal can be ensured. Therefore, it is possible to perform blind detection for each terminal under each AL.
  • the foregoing terminal skips a part of the search space in the specific time domain range, and may skip a part of the search spaces in the plurality of search spaces in the specific time domain range, thereby performing blind detection in the remaining search spaces; or
  • the search space in the partial PDCCH listening opportunity among the multiple PDCCH listening opportunities is performed, thereby performing blind detection on the search space in other PDCCH monitoring opportunities.
  • the terminal can be quickly and simply realized that the number of times the terminal needs to be blindly detected within the specific time domain does not exceed the maximum blind detection capability, and does not need to be complicated. calculation process.
  • the above skipping the search space in the partial CORESET within the specific time domain range may be to skip the search space of part of the CORESET in the plurality of CORESETs in the specific time domain range, and perform blind detection in the search space of the remaining CORESET.
  • the terminal can be quickly and simply realized that the number of times the terminal needs to perform blind detection within the specific time domain does not exceed the maximum blind detection capability, and does not require a complicated calculation process.
  • the number of times that the terminal needs to be blindly detected in the specific time domain range does not exceed the maximum blind detection capability by using one or more of the foregoing multiple ones, and may be specifically determined according to the terminal.
  • the need to determine the requirements, business needs or scenario requirements can increase flexibility.
  • the terminal skips part of the search space in the specific time domain range, including:
  • the terminal continuously skips the search space in the partial PDCCH listening opportunity in the specific time domain range according to the chronological order in which the listening opportunities appear;
  • the terminal skips the search space in the partial PDCCH listening opportunity in the specific time domain range according to the time sequence in which the listening opportunities appear.
  • the foregoing continuously skipping the search space in the partial PDCCH listening opportunity in the specific time domain range may be that there is no PDCCH listening opportunity that is not skipped in the skipped partial PDCCH monitoring opportunity, that is, the foregoing part
  • the PDCCH listening opportunity may include one or more PDCCH listening opportunities, and if multiple PDCCH listening opportunities are included, the chronological order in which the multiple PDCCH listening opportunities occur is spaced from each other.
  • the foregoing interval skipping the search space in the partial PDCCH listening opportunity in the specific time domain range may be that the skipped partial PDCCH monitoring opportunity is continuous with the un skipped PDCCH monitoring opportunity, that is, the foregoing part
  • the PDCCH listening opportunity includes one or more PDCCH listening opportunities. If multiple PDCCH listening opportunities are included, the multiple PDCCH monitoring opportunities appear in chronological order.
  • the terminal may continuously or intermittently skip all PDCCH candidates on a partial search space in a partial PDCCH monitoring occasion. For example, when there are multiple PDCCH listening opportunities or multiple search space types in a slot, if the terminal needs to perform the blind detection times in all the search spaces in the slot, the terminal exceeds the maximum blind detection capability of the terminal. Skip some of the listening opportunities according to the chronological order in which the listening opportunities appear. For example, the slot contains N listening opportunities, and the number of blind detections that the terminal needs to perform in the first M listening opportunities reaches the maximum blind detection capability of the terminal (that is, the number of blind detections that the terminal needs to perform in the first M listening opportunities is equal to the terminal. The maximum blind detection capability), the terminal no longer continues to blindly check the PDCCH within the M-N listening opportunities M1, M+2, ....
  • the terminal when there are multiple PDCCH monitoring opportunities or multiple search space types in one slot, when the number of blind detections that the terminal needs to perform in all the search spaces in the slot exceeds the maximum blind detection capability of the terminal, the terminal follows the monitoring opportunity. The chronological order that occurs, the interval skips the partial listening opportunity. For example, if there are 2P listening opportunities in the slot, the terminal first skips the odd-numbered listening opportunities until the number of blind checks that need to be performed does not exceed the maximum blind detection capability of the terminal.
  • the terminal since the search space in the continuous or interval partial PDCCH listening opportunity is simply skipped, the terminal may not simply exceed the maximum blind detection in the specific time domain range. The ability to improve the performance of the terminal does not require complex calculations.
  • the terminal skips some of the listening opportunities according to the chronological order in which the listening opportunities appear.
  • the USS in the slot contains three listening opportunities.
  • the number of blind checks that the terminal needs to perform reaches the maximum blind detection capability of the terminal, and the terminal is no longer in the third.
  • the PDCCH is blindly detected within the PDCCH listening opportunity.
  • the terminal skips the partial listening opportunity according to the time sequence in which the listening opportunities appear.
  • the slot contains 4 listening opportunities. The terminal first skips the odd-numbered listening opportunities until the number of blind checks that need to be performed does not exceed the maximum blind detection capability of the terminal, for example, as shown in FIG.
  • after the terminal skips the PDCCH listening opportunity 1 it can ensure that the number of blind detections that need to be performed is smaller than the maximum blind detection capability of the terminal.
  • skipping the search space in the PDCCH listening opportunity may be skipping all the search spaces in the PDCCH monitoring opportunity.
  • the PDCCH monitoring opportunity may also be skipped.
  • the partial search space is not limited thereto, and only needs to satisfy that the number of times that the terminal needs to be blindly detected within the specific time domain does not exceed the maximum blind detection capability.
  • the terminal skips the search space in the partial PDCCH listening opportunity in the specific time domain range according to the time sequence in which the monitoring opportunities occur, including:
  • the current interval is selected. a part of the PDCCH listening opportunity as the PDCCH listening opportunity set, and cyclically performing the step of selecting a partial PDCCH listening opportunity in the interval PDCCH listening opportunity set;
  • the PDCCH listening opportunity that is not selected in the current PDCCH monitoring opportunity set is used as The PDCCH listens to the set of opportunities, and cyclically performs the step of selecting a part of the PDCCH listening opportunity in the PDCCH listening opportunity set by the interval;
  • the terminal skips a search space in the PDCCH listening opportunity that is not selected.
  • the part of the PDCCH listening opportunity selected by the current interval is invalid and is not counted in the selected listening opportunity. For example, when 11 PDCCH listening opportunities including M0 to M10 are included in a specific time domain, the first interval selection obtains even listening opportunities (M0, M2, M4, M6, M8, and M10), but these monitoring opportunities need to be blind.
  • M0, M2, M4, M6, M8, and M10 are invalid choices, and then performed on M0, M2, M4, M6, M8, and M10. Interval selection.
  • the selected PDCCH monitoring opportunity may refer to all PDCCH monitoring opportunities currently, but does not include selecting an invalid listening opportunity.
  • the foregoing interval selection may be: selecting one PDCCH listening opportunity every interval of one PDCCH listening opportunity. For example, if the specific time domain range includes 11 PDCCH monitoring opportunities of M0 to M10, the first interval is selected to obtain the 11 PDCCHs. Odd listening opportunities (M1, M3, M5, M7, and M9) or even listening opportunities (M0, M2, M4, M6, M8, and M10) in the opportunity.
  • the step of performing the interval selection of the partial PDCCH listening opportunity in the PDCCH listening opportunity set may be understood as that the PDCCH listening opportunity set is updated once every time, and the interval selection is performed in the updated PDCCH monitoring opportunity set.
  • the maximum blind detection capability and the number of CCEs exceed the maximum number of CCEs the step of selecting the partial PDCCH listening opportunity in the interval selection PDCCH listening opportunity set is performed cyclically.
  • the maximum number of CCEs is pre-configured by the terminal, or pre-defined by the protocol, or pre-configured by the network side device to the terminal.
  • the interval selection is performed by using the foregoing loop, so that the number of blind detections of the terminal in the finally selected all PDCCH monitoring opportunities reaches or is closest to the maximum blind detection capability, or the number of CCEs reaches or is closest to the maximum number of CCEs, thereby maximizing the performance of the terminal.
  • the selected PDCCH sniffering opportunity indicates that all PDCCH singling opportunities that have been selected are currently accumulated
  • the partial PDCCH sniffering opportunity selected by the current interval may be understood as: selecting a partial PDCCH locating opportunity in the PDCCH listening opportunity set in the interval. Part of the PDCCH listening opportunity selected in the step.
  • the partial PDCCH selected at the current interval at this time is M0, M2, M4, M6, M8, and M10
  • the second interval selection is The M0, M4, and M8 are selected in the set of M0, M2, M4, M6, M8, and M10
  • the partial PDCCHs selected by the current interval at this time are M0, M4, and M8, which are not exemplified herein.
  • the current PDCCH listening opportunity set is a PDCCH listening opportunity set after each update, or is understood as a PDCCH monitoring opportunity set updated before each interval selection.
  • the stopping condition of the step of selecting a part of the PDCCH monitoring opportunity in the PDCCH listening opportunity set may include:
  • the number of times that the blind detection is required in the selected PDCCH monitoring opportunity is equal to the maximum blind detection capability, and the number of CCEs is less than or equal to the maximum number of CCEs; or
  • the number of CCEs in the selected PDCCH listening opportunity is equal to the maximum number of CCEs, and the number of times that the blind detection is required is less than or equal to the maximum blind detection capability; or
  • the number of blind detections corresponding to all PDCCH candidate locations in the selected PDCCH listening opportunity exceeds the maximum blind detection capability, or the number of corresponding CCEs exceeds the maximum number of CCEs, and the PDCCH listening opportunity monitored by the terminal does not include Part of the PDCCH listening opportunity selected by the current interval; or
  • the number of times that the selected PDCCH monitoring opportunity needs to be blinded exceeds the maximum blind detection capability or the number of CCEs exceeds the maximum.
  • the number of CCEs, and the PDCCH listening opportunity monitored by the terminal does not include the one PDCCH listening opportunity.
  • the PDCCH listening opportunity set may be selected in the interval.
  • the step of the partial PDCCH listening opportunity is cyclically selected one or more times, if the number of blind detections corresponding to all PDCCH candidate positions in the selected PDCCH monitoring opportunity exceeds the maximum blind detection capability, or the corresponding number of CCEs exceeds the number If the number of CCEs is the maximum, the loop is stopped, and part of the PDCCH listening opportunities selected by the current interval are taken as invalid selections or discarded. In this way, all the PDCCH candidate locations in the currently selected PDCCH listening opportunity cannot be all mapped, and the listening opportunity is discarded and the selection is stopped.
  • the step of selecting only one PDCCH listening opportunity in the step of selecting a part of the PDCCH listening opportunity in the PDCCH listening opportunity set may be, after the PDCCH monitoring opportunity set is updated one or more times, when selecting according to the interval selection rule, only Can choose a PDCCH monitoring opportunity. For example, when the updated PDCCH listening opportunity set is two or three PDCCH listening opportunities, the PDCCH listening opportunity that may be selected is only one PDCCH listening opportunity.
  • all selected PDCCH monitoring opportunities (including one currently selected one PDCCH listening opportunity) need to be blindly checked out of the maximum blind detection capability, or CCE. If the number exceeds the maximum number of CCEs, it means that when the last PDCCH listening opportunity is not needed, the number of blind detections must be closest to the maximum blind detection capability, and the number of CCEs is closest to the maximum number of CCEs.
  • the first interval selection is to obtain the even listening opportunities (M0, M2, M4, M6, M8, and M10) of the 11 PDCCH listening opportunities.
  • the even-numbered listening opportunities (M0, M2) M4, M6, M8, and M10) serve as a PDCCH listening opportunity set, and perform a second interval selection in the set to obtain three PDCCH monitoring opportunities of M0, M4, and M8.
  • the current PDCCH monitoring opportunity set (M0, M2, M4, The PDCCH listening opportunities (M2, M6, and M10) that are not selected in the M6, M8, and M10) are used as the PDCCH listening opportunity set, and the third interval selection is performed to obtain M2 and M10, where the selected PDCCH monitoring opportunity includes (M0, M2, M4, M8, and M10).
  • the number of times of the blind detection is equal to the maximum number of CCEs, and the number of CCEs is less than or equal to the maximum number of CCEs, or the number of CCEs is equal to the maximum number of CCEs, and the number of times of blind detection is less than Or equal to the maximum blind detection capability, then stop the selection.
  • the selected PDCCH monitoring opportunity includes the number of blind detections within (M0, M2, M4, M8, and M10) exceeding the maximum blind detection capability, or the number of CCEs exceeds the maximum number of CCEs, the portion selected at the current interval
  • the PDCCH listening opportunities M2 and M10 are used as the PDCCH monitoring opportunity set, and the fourth interval selection is performed to obtain M2. If the number of blind detections of the M0, M2, M4, and M8 to be selected exceeds the maximum blind detection capability, or CCE If the number exceeds the maximum number of CCEs, the PDCCH listening opportunity of M2 is abandoned, and M0, M4, and M8 are used as PDCCH monitoring opportunities for final monitoring.
  • Embodiment 1 In this embodiment, it is assumed that the payload size of the DCI is the same, so the number of PDCCH candidates is equal to the number of blind detections.
  • CSS1 and USS1 appear simultaneously. CSS1 contains 16 CCEs, 7 PDCCH candidates, and USS1 contains 2 AL4 candidates, that is, 8 CCEs.
  • USS1 has 7 listening opportunities in the slot, as shown in Figure 6.
  • the maximum number of blind checks was 44 and the maximum CCE was 56.
  • the total number of CCEs of the CSS+USS is 72, which exceeds the limit of the maximum number of CCEs.
  • the network side device selects the transmission or the terminal selects to monitor the PDCCH listening opportunity as follows:
  • Step 1 Select a listening opportunity according to the chronological interval in which the listening opportunities appear, for example, select a listening opportunity with an even index ( ⁇ M0 M2 M4 M6 ⁇ ;
  • Step 2 The number of blind tests and the number of CCEs included in the CSS selected by the USS in step 1 are 15 and 48, which do not exceed the maximum number limit. Then, skip back to step 1, and continue to select the listening opportunity for transmitting and receiving the PDCCH in the unselected listening opportunity, that is, at ⁇ M1 M3 M5 ⁇ ;
  • Step 1 ' Select the listening opportunity at the ⁇ M1 M3 M5 ⁇ interval according to the time sequence in which the listening opportunity occurs, that is, ⁇ M1 M5 ⁇ .
  • the number of blind detections and the number of CCEs at this time are 19 and 64, respectively, where the number of CCEs is The maximum number limit is exceeded, so skip back to step 1 and continue to select the number of blind detections that need to send and receive PDCCH at ⁇ M1 M5 ⁇ ;
  • Step 2' Select M1 in ⁇ M1 M5 ⁇ , and calculate the number of BDs and CCEs at this time to be 19 and 56, respectively, wherein the number of CCEs reaches the maximum number limit, and the selection is completed.
  • the number of the selected blind detection number is ⁇ M0 M1 M2 M4 M6 ⁇ , that is, the network side device transmits the downlink control channel in the five blind detection numbers, and the terminal is in the station.
  • the downlink control channel is monitored within 5 blind detection numbers.
  • Embodiment 2 In this embodiment, it is assumed that the payload size of the DCI is the same, so the number of PDCCH candidates is equal to the number of blind detections. Assume that within a slot N, CSS1, CSS2, and USS1 appear simultaneously. Among them, CSS1 and CSS2 respectively contain 16 CCEs, and USS1 contains 2 AL4 candidates, that is, 8 CCEs. Also assume that USS1 has 7 listening opportunities in the slot, as shown in Figure 8. The maximum number of blind checks was 44 and the maximum CCE was 56. In this embodiment, the total number of CCEs of the CSS+USS is 88, which exceeds the limit of the maximum number of CCEs.
  • the network side device selects the transmission or the terminal side selects to monitor the PDCCH listening opportunity as follows:
  • Step 1 Select a listening opportunity according to the chronological interval in which the listening opportunities appear, for example, select a listening opportunity with an even index ( ⁇ M0 M2 M4 M6 ⁇ ;
  • Step 2 The number of blind checks and the number of CCEs included in the CSS selected by the USS in step 1 are 22 and 64, and the number of CCEs exceeds the maximum number. Then perform the following steps 2-1a;
  • Step 2-1a Select the listening opportunity at the ⁇ M0 M2 M4 M6 ⁇ interval in the order in which the listening opportunities appear, that is, ⁇ M0 M4 ⁇ .
  • the number of blind detections and the number of CCEs at this time are 18 and 48 respectively, and the number of blind detections and the number of CCEs do not exceed the maximum number of restrictions. Therefore, step 1 is continued in ⁇ M2 M6 ⁇ to select transmission and reception. PDCCH listening opportunity;
  • Step 1' Select M2 in ⁇ M2 M6 ⁇ , and calculate the number of BDs and CCEs at this time to be 20 and 56, respectively, wherein the number of CCEs reaches the maximum number limit, and the selection is completed.
  • the number of the finally selected listening opportunity is ⁇ M0 M2 M4 ⁇ . That is, the network side device sends the downlink control channel in the three listening opportunities, and the terminal is in the three listening opportunities. Monitor the downlink control channel.
  • Embodiment 3 In this embodiment, it is assumed that the payload size of the DCI is the same, so the number of PDCCH candidates is equal to the number of blind detections.
  • CSS1 and USS1 appear simultaneously. CSS1 contains 14 CCEs, 7 PDCCH candidates, and USS1 contains 6 candidates and 6 CCEs. Also assume that USS1 has 7 listening opportunities in the slot.
  • the maximum number of blind checks was 44 and the maximum CCE was 56.
  • the total number of CCEs of CSS+USS is 56, and the number of BDs is 49, which exceeds the limit of the maximum number of BDs.
  • the network side device selects the transmission or the terminal side selects to monitor the PDCCH listening opportunity as follows:
  • Step 1 Select a listening opportunity according to the chronological interval in which the listening opportunities appear, for example, select a listening opportunity with an even index ( ⁇ M0 M2 M4 M6 ⁇ ;
  • Step 2 The number of BDs and CCEs included in the USS 4 listening opportunities selected by Step 1 and the CSS are 31 and 38, which do not exceed the maximum number of restrictions. Then, skip back to step 1, and continue to select the listening opportunity for transmitting and receiving the PDCCH in the unselected listening opportunity, that is, at ⁇ M1 M3 M5 ⁇ ;
  • Step 1' Select the listening opportunity at the interval of ⁇ M1 M3 M5 ⁇ according to the time sequence in which the listening opportunity occurs, that is, ⁇ M1 M5 ⁇ , and calculate the number of blind detections and the number of CCEs at 43 and 50 respectively, which are not exceeded. The number is limited, so jumping back to step 1 continues to select the listening opportunity that needs to send and receive the PDCCH at ⁇ M3 ⁇ ;
  • Step 2' Select M3, calculate the number of BD and CCE at this time are 49 and 56, respectively, where BD exceeds the maximum number limit. Since M3 is the last unselected listening opportunity, you need to skip the listening opportunity and select carry out.
  • the number of the last selected monitoring occasion is ⁇ M0 M1 M2 M4 M5 M6 ⁇ . That is, the base station sends a downlink control channel in the six monitoring occasions, and the terminal listens to the downlink control channel in the six monitoring occasions.
  • Embodiment 4 In this embodiment, it is assumed that the payload size of the DCI is the same, so the number of PDCCH candidates is equal to the number of blind detections. Assume that within a slot N, CSS1, CSS2, and USS1 appear simultaneously. There are 26 PDCCH candidates in CSS1 and CSS2, and 6 candidates in USS1. Also assume that USS1 has 7 listening opportunities in the slot. The maximum number of blind checks is 44, and the maximum CCE is 56, and the total number of CCEs is assumed to not exceed the maximum number limit. In this embodiment, the total number of BDs of the CSS+USS is 68, which exceeds the limit of the maximum number of BDs.
  • the network side device selects the transmission or the terminal side selects to monitor the PDCCH listening opportunity as follows:
  • Step 1 Select a listening opportunity according to the chronological interval in which the listening opportunities appear, for example, select a listening opportunity with an even index ( ⁇ M0 M2 M4 M6 ⁇ ;
  • Step 2 The number of blind checks included in the USS 4 listening opportunities and the CSS selected in Step 1 is 50, which exceeds the maximum number limit. Then perform the following steps 2-1a;
  • Step 2-1a Select the listening opportunity at the ⁇ M0 M2 M4 M6 ⁇ interval in the order in which the listening opportunities appear, that is, ⁇ M0 M4 ⁇ .
  • the number of blind detections at this time is 38, and the number of blind detections and the number of CCEs does not exceed the maximum number of restrictions. Therefore, the jump back to step 1 continues to select the listening opportunity that needs to send and receive the PDCCH in ⁇ M2 M6 ⁇ ;
  • Step 1' Select M2 in ⁇ M2 M6 ⁇ , and calculate the number of blind detections 4 at this time is 44, wherein the number of blind detections reaches the maximum number limit, and the selection is completed.
  • the number of the finally selected listening opportunity is ⁇ M0 M2 M4 ⁇ . That is, the base station transmits the downlink control channel in the three listening opportunities, and the terminal listens to the downlink control channel in the three listening opportunities.
  • the terminal skips a partial PDCCH candidate location of the at least one AL in the search space in the specific time domain range, including:
  • the terminal sequentially skips partial PDCCH candidates for each AL in each search space in the specific time domain range. Position, until the number of times that a blind check is required in a specific time domain does not exceed the maximum blind detection capability; or
  • the terminal skips a partial PDCCH candidate location of other ALs in each search space in the specific time domain range, where the other AL is AL with multiple PDCCH candidate locations;
  • the terminal skips a partial PDCCH candidate location of the AL in each search space in the specific time domain range according to a specific AL sequence, until the number of blind detections required by the terminal in the specific time domain range does not exceed
  • the maximum blind detection capability is described, wherein, in the process of skipping the PDCCH candidate location, the terminal suspends skipping the PDCCH candidate location of the AL for the AL with only one PDCCH candidate location remaining.
  • each search space in each search space, partial PDCCH candidate locations of each AL are skipped, for example, : in each search space, one or more PDCCH candidate locations of each AL are skipped, but it is guaranteed that at least one PDCCH candidate location is not skipped in each AL, and each AL is skipped of the PDCCH candidate location
  • the number may be the same or different, and is not limited thereto.
  • the same skip operation can be performed in each search space, and it can be ensured that at least one PDCCH candidate location is not skipped under each AL, thereby avoiding some cases where the AL does not perform blind detection. To improve the blind detection performance of the terminal.
  • only one AL of the PDCCH candidate location can be understood, and the number of PDCCH candidates that need to be blindly checked by the terminal in one or more ALs configured in the search space is one, thereby setting only one PDCCH candidate location.
  • the AL has a higher priority, and the PDCCH candidate under the AL with multiple PDCCH candidates should be skipped first to ensure that at least one PDCCH candidate position is not skipped under each AL, thereby avoiding some ALs not performing blind detection. Situation to improve the blind detection performance of the terminal.
  • the PDCCH candidate location until the number of blind detections required by the terminal in the specific time domain does not exceed the maximum blind detection capability, and also ensures that at least one PDCCH candidate location is not skipped under each AL.
  • the specific AL sequence may be pre-configured by the terminal, or defined in the protocol, or configured by the network side to the terminal. For example, the PDCCH candidate of the larger AL may be skipped first, and then the PDCCH of the smaller AL may be skipped. Candidate until the limit of the maximum blind detection capability of the terminal is met.
  • DCI Downlink Control Information
  • Step 1 Calculate the number of blind checks that need to be performed for a PDCCH candidate that skips AL1 is 60, which is still greater than 44;
  • Step 2 Calculate and skip one PDCCH candidate of AL2.
  • the number of blind checks that need to be performed is 56, which is still greater than 44;
  • Step 3 Calculate the number of blind checks that need to be performed on a PDCCH candidate that skips AL4 is 52, still greater than 44;
  • Step 4 Calculate and skip the PDCCH candidate of AL8.
  • the number of blind checks that need to be performed is 48, which is still greater than 44;
  • the terminal needs to skip the number of PDCCH candidates according to different AL calculations, it should first ensure that the number of PDCCH candidates to be monitored in all configured ALs is not zero.
  • Step 1 Calculate the number of blind checks that need to be performed on a PDCCH candidate that skips AL1 is 84, still greater than 44;
  • Step 2 Calculate and skip the PDCCH candidate of AL2.
  • the number of blind checks that need to be performed is 80, which is still greater than 44.
  • Step 3 Calculate the number of blind checks that need to be performed on a PDCCH candidate that skips AL4 is 76, still greater than 44;
  • Step 4 Calculate and skip the PDCCH candidate of AL8.
  • the number of blind checks that need to be performed is 72, which is still greater than 44;
  • the number of blind checks that need to be performed is 64, which is still greater than 44.
  • the terminal performs the skipping of the PDCCH candidate position according to the first search space and then the opportunity, and then the number of remaining LDP candidates in the specific time domain does not exceed the number of times. Maximum blind detection capability.
  • the partial PDCCH candidate positions of the three skip ALs described above may be skipped according to the above sequence until the number of remaining blind detections in a specific time domain range does not exceed the maximum blind detection capability. Skipping in the above order may cause the number of remaining blind detections in a particular time domain to be equal to or approximately equal to the maximum blind detection capability, without causing the number of remaining blind detections within a particular time domain to fall too low. To ensure the blind detection performance of the terminal.
  • the base station configures two search spaces for the terminal, namely SS1 and SS2, and the listening periods of the two are different.
  • the listening period of SS1 is N
  • the listening period of SS2 is 2N slots.
  • N 1
  • the terminal needs to blindly check the downlink control channel according to the two DCI payload sizes, the number of blind detections to be performed in one SS is 22.
  • the terminal skips the partial blind check the following rules are followed:
  • Step 1 In the monitoring occasion0, skip the PDCCH candidate of an AL1 of the SS1, and the number of times of blind detection is 64>44;
  • Step 2 In the monitoring occasion0, skip the PDCCH candidate of an AL1 of the SS2, and the number of times of blind detection is 62>44;
  • Step 3 In the monitoring occasion1, skip the PDCCH candidate of one AL1 of the SS1, and the number of times of blind detection is 60>44;
  • Step 4 In the monitoring occasion0, skip the PDCCH candidate of an AL2 of the SS1, and the number of times of blind detection is 58>44;
  • Step 5 In the monitoring occasion0, skip the PDCCH candidate of an AL2 of the SS2, and the number of times of blind detection is 56>44;
  • Step 6 In the monitoring occasion1, skip the PDCCH candidate of an AL2 of the SS1, and the number of times of blind detection is 54>44;
  • Step 7 In the monitoring occasion0, skip the PDCCH candidate of an AL4 of the SS1, and the number of times of blind detection is 52>44;
  • Step 8 In the monitoring occasion0, skip the PDCCH candidate of an AL4 of the SS2, and the number of times of blind detection is 50>44;
  • Step 9 In the monitoring occasion1, skip the PDCCH candidate of an AL4 of SS1, and the number of times of blind detection is 48>44;
  • Step 10 Since SS1 and SS2 have only one PDCCH candidate of AL8, they are not skipped yet;
  • Step 11 In the monitoring occasion0, skip the PDCCH candidate of an AL1 of SS1, and the number of times of blind detection is 46>44;
  • the number of blind detections in different SSs in each monitoring occasion can be as shown in Table 1:
  • the terminal skips part of the search space in the specific time domain range, including:
  • the terminal skips part of the search space in the specific time domain range according to the size of the listening period.
  • the terminal skips part of the search space in the specific time domain range according to the RNTI;
  • the terminal skips a user-specific search space USS within a particular CORESET, wherein the particular CORESET is a CORESET that transmits CSS.
  • a part of the search space in the specific time domain range may be skipped according to the size of the listening period.
  • the search space with a large listening period may be skipped preferentially, or the search space with a small listening period may be skipped preferentially.
  • the listening period of SS1 is N
  • the number of blind detections to be performed in one SS is 44.
  • the terminal skips partial blind detection it can follow the following rules:
  • the terminal chooses to skip one of the SSs according to the listening period corresponding to the SS. For example, as shown in FIG. 5, the terminal skips an SS having a smaller period, or the terminal skips an SS having a larger period.
  • the RNTI corresponding to the SS configured by the base station is different, for example, the RNTI corresponding to the SS1 is a Cell Radio Network Temporary Identifier (C-RNTI), and the RNTI corresponding to the SS2 is a scheduled wireless network temporary identifier (Configured).
  • the Scheduling Radio Network Temporary Identifier (CS-RNTI) the RNTI corresponding to the SS3 is an X-RNTI, where the X-RNTI is any possible RNTI value, which is not limited in this embodiment of the present disclosure.
  • the terminal selects to skip part of the search space according to the RNTI value corresponding to different SSs.
  • the terminal can skip the corresponding search space in the following order.
  • the terminal first skips the search space corresponding to the RNTI as the C-RNTI;
  • the terminal preferentially skips the search space corresponding to other RNTI values.
  • SI-RNTI System Information Radio Network Temporary Identifier
  • P-RNTI random connection
  • RA-RNTI Slot Format Indicator Radio Network Temporary Identifier
  • SFI-RNTI Slot Format Indicator Radio Network Temporary Identifier
  • the terminal skips a search space in a part of the CORESET in the specific time domain range, and may skip the search space in one or more CORESETs according to the configuration of the CORESET where the search space is located, for example:
  • the terminal skips the search space in the partial CORESET within the specific time domain range, including:
  • the terminal skips the search space in a part of the CORESET in the specific time domain range according to the mapping manner;
  • the terminal preferentially skips a search space within a specific CORESET within the specific time domain range, wherein the specific CORESET is a CORESET with the lowest matching degree between the QCL and the target QCL among the plurality of CORESETs in the specific time domain range.
  • the target QCL is a QCL obtained by beam management.
  • the terminal skips the search space in a part of the CORESET in the specific time domain range according to the mapping manner, including:
  • the terminal preferentially skips the search space within the CORESET of the localized mapping within the specific time domain range;
  • the terminal preferentially skips the search space within the CORESET of the distributed mapping within the specific time domain.
  • the terminal may preferentially skip the CORESET of the localized mapping, or the terminal preferentially skips the distributed mapping (distributed mapping). CORESET, or, the terminal preferentially skips the CORESET that does not match the QCL obtained by beam management.
  • the SS configured by the base station for the terminal is transmitted in different CORESETs, and different CORESETs have different configuration parameters.
  • the mapping mode of CORESET1 is localized mapping and the QCL parameter is QCL1
  • the mapping mode of CORESET2 is distributed mapping and the QCL parameter is QCL2.
  • the terminal determines which search space in the CORESET is skipped according to the different configurations corresponding to the CORESET.
  • the terminal can skip the corresponding search space in the following order:
  • the terminal preferentially skips the CORESET that does not match the QCL obtained by beam management;
  • the terminal preferentially skips the CORESET of the localized mapping or the distributed mapping.
  • the terminal if the number of times the terminal needs to perform blind detection exceeds the maximum blind detection capability within a specific time domain, the terminal skips a part of the blind detection opportunity in the specific time domain range, and performs the remaining blind detection opportunities.
  • Channel blind detection wherein the maximum blind detection capability is the maximum number of blind detections of the terminal in the specific time domain range, and the number of remaining blind detections in the specific time domain range of the terminal does not exceed The maximum blind detection capability. Since the partial blind detection opportunity is skipped, the number of times that the terminal needs to be blinded in the specific time domain does not exceed the maximum blind detection capability, thereby improving the performance of the terminal.
  • FIG. 11 is a flowchart of a signal transmission method according to an embodiment of the present disclosure. As shown in FIG. 11, the method includes the following steps:
  • the network side device determines a partial blind detection opportunity in the specific time domain range skipped by the terminal, where the maximum The blind detection capability is the maximum number of blind detections of the terminal in the specific time domain range;
  • the network side device transmits a signal in the remaining blind detection opportunities, wherein the number of times that the terminal needs to be blindly detected in the specific time domain does not exceed the maximum blind detection capability.
  • step 1101 and step 1102 is not limited. For example, as shown in FIG. 11, step 1101 is performed first, then step 1102 is performed, or step 1101 and step 1102 may be executed. There is an overlap of time. For example, in the process of performing step 1102, step 1101 is simultaneously performed to determine a blind check chance that the terminal skips, and further, in step 1102, signals are not sent by these blind check opportunities.
  • determining that the skip blind check opportunity and the network side device determine that the terminal skips the blind check opportunity may be the same, so that the remaining terminal may be required to perform blind detection within the specific time domain range. The number of times does not exceed the maximum blind detection capability, thereby improving the performance of the terminal while ensuring that the transmission performance of the communication system does not decrease.
  • the network side device determines, in the specific time domain range skipped by the terminal, a part of the blind detection opportunity, including at least one of the following:
  • the network side device determines a partial search space within the specific time domain range skipped by the terminal
  • the network side device determines a search space within a portion of the CORESET within the specific time domain range skipped by the terminal.
  • a plurality of PDCCH monitoring opportunities or a plurality of types of search spaces exist in the specific time domain range, and the network side device determines, in the specific time domain range, the partial search space that is skipped by the terminal, including:
  • the network side device determines, according to a chronological order in which the listening opportunities occur, a search space in a part of the PDCCH monitoring opportunities in the specific time domain range skipped by the terminal interval, including:
  • the network side device selects a part of the PDCCH listening opportunity in the PDCCH listening opportunity set according to the time sequence in which the listening opportunity occurs, where the PDCCH monitoring opportunity set is all PDCCHs in the specific time domain range when the first interval is selected. Listening opportunity
  • the current interval is selected. a part of the PDCCH listening opportunity as the PDCCH listening opportunity set, and cyclically performing the step of selecting a partial PDCCH listening opportunity in the interval PDCCH listening opportunity set;
  • the PDCCH listening opportunity that is not selected in the current PDCCH monitoring opportunity set is used as The PDCCH listens to the set of opportunities, and cyclically performs the step of selecting a part of the PDCCH listening opportunity in the PDCCH listening opportunity set by the interval;
  • the terminal skips a search space in the PDCCH listening opportunity that is not selected.
  • the stopping condition of the step of selecting a part of the PDCCH listening opportunity in the PDCCH listening opportunity set by the interval includes:
  • the number of times that the blind detection is required in the selected PDCCH monitoring opportunity is equal to the maximum blind detection capability, and the number of CCEs is less than or equal to the maximum number of CCEs; or
  • the number of CCEs in the selected PDCCH listening opportunity is equal to the maximum number of CCEs, and the number of times that the blind detection is required is less than or equal to the maximum blind detection capability; or
  • the number of blind detections corresponding to all PDCCH candidate locations in the selected PDCCH listening opportunity exceeds the maximum blind detection capability, or the number of corresponding CCEs exceeds the maximum number of CCEs, and the PDCCH listening opportunity monitored by the terminal does not include Part of the PDCCH listening opportunity selected by the current interval; or
  • the number of times that the selected PDCCH monitoring opportunity needs to be blinded exceeds the maximum blind detection capability or the number of CCEs exceeds the maximum.
  • the number of CCEs, and the PDCCH listening opportunity monitored by the terminal does not include the one PDCCH listening opportunity.
  • the network side device determines, by the terminal, a partial PDCCH candidate location of the at least one AL in the search space in the specific time domain range skipped by the terminal, including:
  • the network side device determines that each terminal in the specific time domain range that the terminal sequentially skips a partial PDCCH candidate location for each AL;
  • the network side device determines a partial PDCCH candidate location of other ALs in each search space in the specific time domain range skipped by the terminal, Wherein the other AL is an AL having multiple PDCCH candidate locations; or
  • the terminal searches for the space according to the first search space, and then listens to the opportunity, and then skips the PDCCH candidate position in the sequence of the AL, until the number of remaining blind detections in the specific time domain range does not exceed the maximum blind detection capability.
  • the network side device determines, in the specific time domain range, the partial search space that is skipped by the terminal, including:
  • the network side device determines, according to the size of the listening period, part of the search space in the specific time domain range skipped by the terminal; or
  • the network side device determines a USS within a specific CORESET skipped by the terminal, wherein the specific CORESET is a CORESET for transmitting a CSS.
  • the network side device determines, by the terminal, a search space in a part of the CORESET within the specific time domain range skipped by the terminal, including:
  • the network side device Determining, by the network side device, a search space within a specific CORESET within the specific time domain range skipped by the terminal, wherein the specific CORESET is a QCL and a target QCL of multiple CORESETs in the specific time domain range
  • the target QCL is the QCL obtained by the beam management.
  • the network side device determines, according to the mapping manner, a search space in a part of the CORESET in the specific time domain range skipped by the terminal, including:
  • the network side device determines a search space within the CORESET of the distributed mapping within the specific time domain range that the terminal preferentially skips.
  • the specific time domain range is a slot.
  • the base station side can simultaneously consider the behavior of the skip part PDCCH candidate corresponding to the terminal, for example:
  • the base station preferentially transmits the downlink control channel in the search space of the first N listening opportunities according to the chronological order of the monitoring occasions;
  • the base station transmits the downlink control channel on the search space in the interval listening opportunity according to the time sequence of the listening opportunity according to the comb (comb);
  • the base station when the downlink control channel needs to be sent in the CSS, the base station sends a corresponding downlink control channel in the CSS.
  • the base station transmits the downlink control channel within a range of part of the PDCCH candidate under each AL in a manner agreed upon with the terminal side.
  • the base station transmits the downlink control channel in the search space in the specific listening opportunity according to the monitoring period of the PDCCH.
  • the base station transmits the downlink control channel in part of the CORESET according to the different configuration of the CORESET according to the rule corresponding to the terminal side.
  • the base station transmits the downlink control channel in the CORESET that does not transmit the CSS.
  • the present embodiment is an implementation manner of the network side device corresponding to the embodiment shown in FIG. 2, and a specific implementation manner of the embodiment may refer to the related description of the embodiment shown in FIG. This embodiment will not be described again, and the same or similar advantages can be achieved.
  • FIG. 12 is a structural diagram of a terminal according to an embodiment of the present disclosure. As shown in FIG. 12, the terminal 1200 includes:
  • the blind detection module 1201 is configured to skip a part of the blind detection opportunity in the specific time domain range and perform the channel in the remaining blind detection opportunities if the number of times the terminal needs to perform the blind detection exceeds the maximum blind detection capability within a specific time domain range.
  • the maximum blind detection capability is the maximum number of blind detections of the terminal in the specific time domain range, and the number of remaining blind detections required by the terminal in the specific time domain does not exceed the maximum blind detection. ability.
  • the blind detection module 1201 includes at least one of the following:
  • the first blind detection unit 12011 is configured to skip a partial physical downlink of at least one aggregation level AL in the search space in the specific time domain range if the number of times that the terminal needs to be blindly detected exceeds the maximum blind detection capability in a specific time domain range. Controlling a PDCCH candidate location, and performing channel blind detection on the remaining PDCCH candidate locations;
  • the second blind detection unit 12012 is configured to skip a part of the search space in the specific time domain range and perform channel blindness in the remaining search spaces if the number of times the terminal needs to perform blind detection exceeds the maximum blind detection capability in a specific time domain range. Inspection
  • the third blind detection unit 12013 is configured to skip the search space in the partial CORESET within the specific time domain range and the remaining CORESET if the number of times the terminal needs to perform the blind detection exceeds the maximum blind detection capability within a specific time domain range.
  • the search space performs channel blind detection.
  • the second blind detecting unit 12012 is configured to continuously skip the specific time domain range according to the chronological order in which the monitoring opportunities occur. Partial PDCCH listens to the search space in the opportunity; or
  • the second blind detecting unit 12012 is configured to skip the search space in the partial PDCCH listening opportunity in the specific time domain range according to the chronological order in which the listening opportunities occur.
  • the second blind detection unit 12012 is configured to:
  • the partial PDCCH selected by the current interval is selected. Listening to the PDCCH listening opportunity set, and performing the step of selecting the partial PDCCH listening opportunity in the PDCCH listening opportunity set by the interval;
  • the PDCCH listening opportunity that is not selected in the current PDCCH monitoring opportunity set is used as The PDCCH listens to the set of opportunities, and cyclically performs the step of selecting a part of the PDCCH listening opportunity in the PDCCH listening opportunity set by the interval;
  • the terminal skips a search space in the PDCCH listening opportunity that is not selected.
  • the stopping condition of the step of selecting a part of the PDCCH listening opportunity in the PDCCH listening opportunity set by the interval includes:
  • the number of times that the blind detection is required in the selected PDCCH monitoring opportunity is equal to the maximum blind detection capability, and the number of CCEs is less than or equal to the maximum number of CCEs; or
  • the number of CCEs in the selected PDCCH listening opportunity is equal to the maximum number of CCEs, and the number of times that the blind detection is required is less than or equal to the maximum blind detection capability; or
  • the number of blind detections corresponding to all PDCCH candidate locations in the selected PDCCH listening opportunity exceeds the maximum blind detection capability, or the number of corresponding CCEs exceeds the maximum number of CCEs, and the PDCCH listening opportunity monitored by the terminal does not include Part of the PDCCH listening opportunity selected by the current interval; or
  • the number of times that the selected PDCCH monitoring opportunity needs to be blinded exceeds the maximum blind detection capability or the number of CCEs exceeds the maximum.
  • the number of CCEs, and the PDCCH listening opportunity monitored by the terminal does not include the one PDCCH listening opportunity.
  • the first blind detection unit 12011 is configured to skip each search in the specific time domain range in turn if multiple PDCCH candidate locations exist in each AL in each search space in the specific time domain range. a portion of the PDCCH candidate position of each AL in the space until the number of times that a blind detection is required in a specific time domain does not exceed the maximum blind detection capability; or
  • the first blind detection unit 12011 is configured to skip the partial PDCCH candidate locations of other ALs in each search space in the specific time domain range if there is only one AL of the PDCCH candidate location in the specific time domain range, where The other AL is an AL having multiple PDCCH candidate locations; or
  • the first blind detection unit 12011 is configured to skip a partial PDCCH candidate location of the AL in each search space in the specific time domain range according to a specific AL sequence until the terminal needs to be blindly detected in the specific time domain range.
  • the number does not exceed the maximum blind detection capability, wherein, in the process of skipping the PDCCH candidate location, the terminal suspends skipping the PDCCH candidate location of the AL for the AL with only one PDCCH candidate location remaining.
  • the terminal searches for the space according to the first search space, and then listens to the opportunity, and then skips the PDCCH candidate position in the sequence of the AL, until the number of remaining blind detections in the specific time domain range does not exceed the maximum blind detection capability.
  • the second blind detecting unit 12012 is configured to skip part of the search space in the specific time domain range according to the listening period size;
  • the second blind detection unit 12012 is configured to skip part of the search space in the specific time domain range according to the wireless network temporary identifier RNTI; or
  • the second blind detection unit 12012 is for skipping the user-specific search space USS within a particular CORESET, which is the CORESET transmitting the common transmission search space CSS.
  • the third blind detection unit 12013 is configured to skip the search space in the partial CORESET in the specific time domain range according to the mapping manner;
  • the third blind detection unit 12013 is configured to preferentially skip the search space within a specific CORESET within the specific time domain range, wherein the specific CORESET is a plurality of CORESET medium quasi-co-location QCL and target QCL in the specific time domain range
  • the CORESET with the lowest matching degree, the target QCL is the QCL obtained by the beam management.
  • the third blind detection unit 12013 is configured to preferentially skip the search space in the CORESET locally mapped in the specific time domain range;
  • the third blind detection unit 12013 is configured to preferentially skip the search space within the CORESET of the distributed mapping within the specific time domain range.
  • the specific time domain range is a slot.
  • the foregoing terminal 1200 may be a terminal in any embodiment of the method embodiment in the embodiments of the present disclosure, and any implementation manner of the terminal in the method embodiment in the embodiment of the present disclosure may be implemented by the present embodiment.
  • the above-mentioned terminal 1200 in the example is implemented, and the same or similar beneficial effects are achieved, and details are not described herein again.
  • FIG. 14 is a structural diagram of a network side device according to an embodiment of the present disclosure.
  • the network side device 1400 includes:
  • the determining module 1401 is configured to determine, if the number of times that the terminal needs to be blindly detected in a specific time domain range exceeds the maximum blind detection capability, determine a partial blind detection opportunity in the specific time domain range skipped by the terminal, where
  • the maximum blind detection capability is the maximum number of blind detections of the terminal in the specific time domain range;
  • the transmission module 1402 is configured to transmit a signal in the remaining blind detection opportunities, wherein the number of times the terminal needs to be blinded in the specific time domain does not exceed the maximum blind detection capability.
  • the determining module 1401 includes at least one of the following:
  • the first determining unit 14011 is configured to determine, if the number of times that the terminal needs to perform blind detection in a specific time domain range exceeds the maximum blind detection capability, determine, by the terminal, at least one part of the search space in the specific time domain range skipped by the terminal PDCCH candidate location;
  • the second determining unit 14012 is configured to determine, if the number of times that the terminal needs to be blindly detected in a specific time domain range exceeds the maximum blind detection capability, determine a partial search space in the specific time domain range skipped by the terminal;
  • the third determining unit 14013 is configured to determine, if the number of times that the terminal needs to perform blind detection in a specific time domain range exceeds the maximum blind detection capability, determine a search space within a part of the CORESET within the specific time domain range skipped by the terminal.
  • a plurality of PDCCH monitoring opportunities or multiple types of search spaces exist in the specific time domain range, and the second determining unit 14012 is configured to determine, according to a chronological order in which the monitoring opportunities occur, the specific The search space in the partial PDCCH listening opportunity in the time domain range; or the second determining unit 14012 is configured to determine, in the chronological order in which the interception opportunity occurs, the partial PDCCH monitoring opportunity in the specific time domain range skipped by the terminal interval Search space.
  • the second determining unit 14012 is configured to:
  • the current interval is selected. a part of the PDCCH listening opportunity as the PDCCH listening opportunity set, and cyclically performing the step of selecting a partial PDCCH listening opportunity in the interval PDCCH listening opportunity set;
  • the PDCCH listening opportunity that is not selected in the current PDCCH monitoring opportunity set is used as The PDCCH listens to the set of opportunities, and cyclically performs the step of selecting a part of the PDCCH listening opportunity in the PDCCH listening opportunity set by the interval;
  • the terminal skips a search space in the PDCCH listening opportunity that is not selected.
  • the stopping condition of the step of selecting a part of the PDCCH listening opportunity in the PDCCH listening opportunity set by the interval includes:
  • the number of times that the blind detection is required in the selected PDCCH monitoring opportunity is equal to the maximum blind detection capability, and the number of CCEs is less than or equal to the maximum number of CCEs; or
  • the number of CCEs in the selected PDCCH listening opportunity is equal to the maximum number of CCEs, and the number of times that the blind detection is required is less than or equal to the maximum blind detection capability; or
  • the number of blind detections corresponding to all PDCCH candidate locations in the selected PDCCH listening opportunity exceeds the maximum blind detection capability, or the number of corresponding CCEs exceeds the maximum number of CCEs, and the PDCCH listening opportunity monitored by the terminal does not include Part of the PDCCH listening opportunity selected by the current interval; or
  • the number of times that the selected PDCCH monitoring opportunity needs to be blinded exceeds the maximum blind detection capability or the number of CCEs exceeds the maximum.
  • the number of CCEs, and the PDCCH listening opportunity monitored by the terminal does not include the one PDCCH listening opportunity.
  • the first determining unit 14011 is configured to determine, according to the specific time domain range that the terminal sequentially skips, if multiple PDCCH candidate locations exist in each AL in each search space in the specific time domain range. a partial PDCCH candidate location for each AL in each search space; or
  • the first determining unit 14011 is configured to determine, if the AL in the specific time domain range is only one PDCCH candidate location, the partial PDCCH candidate of other ALs in each search space in the specific time domain range skipped by the terminal a location, wherein the other AL is an AL having multiple PDCCH candidate locations; or
  • the first determining unit 14011 is configured to determine, according to a specific AL sequence, a partial PDCCH candidate location of the AL in each search space in the specific time domain range skipped by the terminal, where the PDCCH candidate location is skipped For the AL with only one PDCCH candidate location left, the terminal pauses to skip the PDCCH candidate location of the AL.
  • the terminal searches for the space according to the first search space, and then listens to the opportunity, and then skips the PDCCH candidate position in the sequence of the AL, until the number of remaining blind detections in the specific time domain range does not exceed the maximum blind detection capability.
  • the second determining unit 14012 is configured to determine, according to the listening period size, part of the search space in the specific time domain range skipped by the terminal; or
  • the second determining unit 14012 is configured to determine, according to the RNTI, a partial search space within the specific time domain range skipped by the terminal; or
  • the second determining unit 14012 is configured to determine a USS within a specific CORESET skipped by the terminal, wherein the specific CORESET is a CORESET for transmitting a CSS.
  • the third determining unit 14013 is configured to determine, according to a mapping manner, a search space in a part of the CORESET within the specific time domain range skipped by the terminal; or
  • the third determining unit 14013 is configured to determine a search space within a specific CORESET within the specific time domain range that the terminal preferentially skips, wherein the specific CORESET is a QCL and a target in multiple CORESETs in the specific time domain range
  • the QCL has the lowest matching CORESET, and the target QCL is the QCL obtained by the beam management.
  • the third determining unit 14013 is configured to determine, by the network side device, a search space within the locally mapped CORESET within the specific time domain range that the terminal preferentially skips; or
  • the third determining unit 14013 is configured to determine a search space within the CORESET of the distributed mapping in the specific time domain range that the terminal preferentially skips.
  • the specific time domain range is a slot.
  • the network side device 1400 may be a network side device in any of the method embodiments in the embodiments of the present disclosure, and any implementation of the network side device in the method embodiment in the embodiment of the present disclosure
  • the method can be implemented by the network side device 1400 in the foregoing embodiment, and achieve the same beneficial effects, and details are not described herein again.
  • FIG. 16 is a structural diagram of another terminal according to an embodiment of the present disclosure.
  • the terminal includes: a transceiver 1610 , a memory 1620 , a processor 1600 , and the memory 1620 . And a computer program operable on the processor, wherein:
  • the processor 1600 is configured to skip a part of the blind detection opportunity in the specific time domain range and perform the remaining blind detection opportunities if the number of times the terminal needs to perform blind detection exceeds the maximum blind detection capability within a specific time domain range.
  • Channel blind detection
  • the maximum blind detection capability is the maximum number of blind detections of the terminal in the specific time domain range, and the number of remaining blind detections required by the terminal in the specific time domain does not exceed the maximum blind detection. ability.
  • the transceiver 1610 can be configured to receive and transmit data under the control of the processor 1600.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1600 and various circuits of memory represented by memory 1620.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 1610 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 1600 is responsible for managing the bus architecture and general processing, and the memory 1620 can store data used by the processor 1600 in performing operations.
  • the memory 1620 is not limited to be only on the terminal, and the memory 1620 and the processor 1600 may be separated into different geographical locations.
  • the partial blind detection opportunity in the specific time domain range is skipped, and the channel blind detection is performed in the remaining blind detection opportunities, including at least one of the following:
  • the search space within a portion of the CORESET within the specific time domain range is skipped, and the channel search is performed in the search space within the remaining CORESET.
  • the search spaces in the partial PDCCH listening opportunities in the specific time domain range are continuously skipped;
  • the interval skips the search space in the partial PDCCH listening opportunities in the specific time domain range.
  • the interval skips the search space in the partial PDCCH listening opportunity in the specific time domain range according to the chronological order in which the listening opportunities occur, including:
  • the current interval is selected. a part of the PDCCH listening opportunity as the PDCCH listening opportunity set, and cyclically performing the step of selecting a partial PDCCH listening opportunity in the interval PDCCH listening opportunity set;
  • the PDCCH listening opportunity that is not selected in the current PDCCH monitoring opportunity set is used as The PDCCH listens to the set of opportunities, and cyclically performs the step of selecting a part of the PDCCH listening opportunity in the PDCCH listening opportunity set by the interval;
  • the terminal skips a search space in the PDCCH listening opportunity that is not selected.
  • the stopping condition of the step of selecting a part of the PDCCH listening opportunity in the PDCCH listening opportunity set by the interval includes:
  • the number of times that the blind detection is required in the selected PDCCH monitoring opportunity is equal to the maximum blind detection capability, and the number of CCEs is less than or equal to the maximum number of CCEs; or
  • the number of CCEs in the selected PDCCH listening opportunity is equal to the maximum number of CCEs, and the number of times that the blind detection is required is less than or equal to the maximum blind detection capability; or
  • the number of blind detections corresponding to all PDCCH candidate locations in the selected PDCCH listening opportunity exceeds the maximum blind detection capability, or the number of corresponding CCEs exceeds the maximum number of CCEs, and the PDCCH listening opportunity monitored by the terminal does not include Part of the PDCCH listening opportunity selected by the current interval; or
  • the number of times that the selected PDCCH monitoring opportunity needs to be blinded exceeds the maximum blind detection capability or the number of CCEs exceeds the maximum.
  • the number of CCEs, and the PDCCH listening opportunity monitored by the terminal does not include the one PDCCH listening opportunity.
  • the skipping the partial PDCCH candidate locations of the at least one AL in the search space in the specific time domain range includes:
  • partial PDCCH candidate locations of each AL in each search space in the specific time domain range are sequentially skipped until The number of remaining blind detections within a specific time domain does not exceed the maximum blind detection capability;
  • skipping in a specific AL order, a partial PDCCH candidate position of the AL in each search space within the specific time domain range until the number of blind detections required by the terminal in the specific time domain does not exceed the maximum blindness
  • the terminal suspends skipping the PDCCH candidate location of the AL for the AL with only one PDCCH candidate location remaining.
  • the terminal searches for the space according to the first search space, and then listens to the opportunity, and then skips the PDCCH candidate position in the sequence of the AL, until the number of remaining blind detections in the specific time domain range does not exceed the maximum blind detection capability.
  • the skipping part of the search space in the specific time domain range includes:
  • the terminal skips the USS within a particular CORESET, where the particular CORESET is the CORESET that transmits the CSS.
  • the skipping the search space in the partial CORESET in the specific time domain range includes:
  • the specific CORESET is a CORESET having the lowest matching degree between the quasi co-location QCL and the target QCL among the plurality of CORESETs in the specific time domain range
  • the target QCL is the QCL obtained by beam management.
  • the terminal skips the search space in a part of the CORESET in the specific time domain range according to the mapping manner, including:
  • the terminal preferentially skips the search space within the locally mapped CORESET within the specific time domain range;
  • the terminal preferentially skips the search space within the CORESET of the distributed mapping within the specific time domain range.
  • the specific time domain range is a slot.
  • the foregoing terminal may be a terminal in any embodiment of the method embodiment in the embodiment of the present disclosure, and any implementation manner of the terminal in the method embodiment in the embodiment of the present disclosure may be used in this embodiment.
  • the above-mentioned terminals are implemented, and the same beneficial effects are achieved, and details are not described herein again.
  • FIG. 17 is a structural diagram of another network side device according to an embodiment of the present disclosure.
  • the network side device includes: a transceiver 1710, a memory 1720, a processor 1700, and a storage device. a computer program on the memory 1720 and operable on the processor, wherein:
  • the processor 1700 is configured to read a program in the memory and perform the following process:
  • the terminal needs to perform the blind detection exceeds the maximum blind detection capability in a specific time domain, determining a partial blind detection opportunity in the specific time domain range skipped by the terminal, wherein the maximum blind detection capability is Describe the maximum number of blind detections of the terminal in the specific time domain range;
  • the processor 1700 is configured to transmit a signal in the remaining blind detection opportunities, wherein the number of times that the terminal needs to be blindly detected in the specific time domain does not exceed the maximum blind detection capability;
  • the processor 1700 is configured to determine, if the number of times that the terminal needs to perform the blind detection exceeds the maximum blind detection capability, in a specific time domain, the partial blind detection opportunity in the specific time domain range skipped by the terminal is determined, where
  • the maximum blind detection capability is the maximum number of blind detections of the terminal in the specific time domain range;
  • the signal is transmitted in the remaining blind detection opportunities, wherein the number of times the terminal needs to be blindly detected within the specific time domain does not exceed the maximum blind detection capability.
  • the transceiver 1710 can be configured to receive and transmit data under the control of the processor 1700.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1700 and various circuits of memory represented by memory 1720.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 1710 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 1700 is responsible for managing the bus architecture and general processing, and the memory 1720 can store data used by the processor 1700 in performing operations.
  • the memory 1720 is not limited to only the network side device, and the memory 1720 and the processor 1700 may be separated in different geographical locations.
  • the determining, by the terminal, a part of the blind detection opportunity in the specific time domain range skipped by the terminal includes at least one of the following:
  • a plurality of PDCCH monitoring opportunities or a plurality of types of search spaces are found in the specific time domain range, and the part of the search space in the specific time domain range that is skipped by the terminal is determined, including:
  • the determining, in the chronological order of the occurrence of the interception opportunity, the search space in the partial PDCCH listening opportunity in the specific time domain range skipped by the terminal interval including:
  • the PDCCH listening opportunity set in the PDCCH listening opportunity set is selected according to the chronological order in which the listening opportunities occur, wherein the PDCCH listening opportunity set is the PDCCH listening opportunity in the specific time domain range when the first interval is selected;
  • the current interval is selected. a part of the PDCCH listening opportunity as the PDCCH listening opportunity set, and cyclically performing the step of selecting a partial PDCCH listening opportunity in the interval PDCCH listening opportunity set;
  • the PDCCH listening opportunity that is not selected in the current PDCCH monitoring opportunity set is used as The PDCCH listens to the set of opportunities, and cyclically performs the step of selecting a part of the PDCCH listening opportunity in the PDCCH listening opportunity set by the interval;
  • the terminal skips a search space in the PDCCH listening opportunity that is not selected.
  • the stopping condition of the step of selecting a part of the PDCCH listening opportunity in the PDCCH listening opportunity set by the interval includes:
  • the number of times that the blind detection is required in the selected PDCCH monitoring opportunity is equal to the maximum blind detection capability, and the number of CCEs is less than or equal to the maximum number of CCEs; or
  • the number of CCEs in the selected PDCCH listening opportunity is equal to the maximum number of CCEs, and the number of times that the blind detection is required is less than or equal to the maximum blind detection capability; or
  • the number of blind detections corresponding to all PDCCH candidate locations in the selected PDCCH listening opportunity exceeds the maximum blind detection capability, or the number of corresponding CCEs exceeds the maximum number of CCEs, and the PDCCH listening opportunity monitored by the terminal does not include Part of the PDCCH listening opportunity selected by the current interval; or
  • the number of times that the selected PDCCH monitoring opportunity needs to be blinded exceeds the maximum blind detection capability or the number of CCEs exceeds the maximum.
  • the number of CCEs, and the PDCCH listening opportunity monitored by the terminal does not include the one PDCCH listening opportunity.
  • the determining, by the terminal, a partial PDCCH candidate location of the at least one AL in the search space in the specific time domain range skipped by the terminal including:
  • the terminal searches for the space according to the first search space, and then listens to the opportunity, and then skips the PDCCH candidate position in the sequence of the AL, until the number of remaining blind detections in the specific time domain range does not exceed the maximum blind detection capability.
  • the determining part of the search space in the specific time domain range skipped by the terminal includes:
  • the determining, by the terminal, a search space in a part of the CORESET within the specific time domain range skipped by the terminal including:
  • the specific CORESET is a CORESET having the lowest matching degree between the QCL and the target QCL among the plurality of CORESETs in the specific time domain range
  • the target QCL is a QCL obtained by beam management.
  • determining, according to the mapping manner, a search space in a part of the CORESET in the specific time domain range skipped by the terminal including:
  • the specific time domain range is a slot.
  • the foregoing sending end may be the sending end of any embodiment of the method embodiment in the embodiment of the present disclosure, and any implementation manner of the sending end in the method embodiment of the present disclosure may be The above-mentioned transmitting end in the embodiment is implemented, and the same beneficial effects are achieved, and details are not described herein again.
  • the embodiment of the present disclosure further provides a computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the steps in the channel blind detection method provided by the embodiments of the present disclosure, or the program is processed
  • the steps in the signal transmission method provided by the embodiments of the present disclosure are implemented when the device is executed.
  • the disclosed method and apparatus may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may be physically included 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.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional unit is stored in a storage medium and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the processing method of the information data block according to various embodiments of the present disclosure. Part of the steps.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

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

Abstract

L'invention concerne un procédé de détection de canal aveugle, un procédé de transmission de signal et un dispositif associé. Le procédé de détection de canal aveugle comprend l'étape suivante : si le nombre de fois qu'une détection aveugle doit être effectuée par un terminal dans une plage de domaine temporel spécifiée dépasse la capacité de détection aveugle maximale, le terminal omet certaines occasions de détection aveugle dans la plage de domaine temporel spécifiée, et effectue une détection de canal aveugle sur les occasions de détection aveugle restantes, la capacité de détection aveugle maximale étant le nombre maximal de fois que le terminal effectue une détection aveugle dans la plage de domaine temporel spécifiée, et le nombre restant de fois que la détection aveugle doit être effectuée par le terminal dans la plage de domaine temporel spécifiée ne dépasse pas la capacité de détection aveugle maximale. Les modes de réalisation de la présente invention peuvent améliorer la performance d'un terminal.
PCT/CN2019/078131 2018-04-03 2019-03-14 Procédé de détection de canal aveugle, procédé de transmission de signal et dispositif associé Ceased WO2019192304A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US16/982,995 US11831425B2 (en) 2018-04-03 2019-03-14 Channel blind detection method, signal transmission method and related devices
EP19780611.0A EP3780434A4 (fr) 2018-04-03 2019-03-14 Procédé de détection de canal aveugle, procédé de transmission de signal et dispositif associé
JP2020551424A JP7216740B2 (ja) 2018-04-03 2019-03-14 チャネルブラインド検出方法、信号伝送方法及び関連機器
KR1020207030047A KR102466252B1 (ko) 2018-04-03 2019-03-14 채널 블라인드 검출 방법, 신호 전송 방법 및 관련 기기

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CN201810288575 2018-04-03
CN201810288575.6 2018-04-03
CN201810448324.X 2018-05-11
CN201810448324.XA CN110351010B (zh) 2018-04-03 2018-05-11 一种信道盲检方法、信号传输方法和相关设备

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