WO2020135444A1 - Procédé et dispositif de détection de dci - Google Patents

Procédé et dispositif de détection de dci Download PDF

Info

Publication number
WO2020135444A1
WO2020135444A1 PCT/CN2019/128053 CN2019128053W WO2020135444A1 WO 2020135444 A1 WO2020135444 A1 WO 2020135444A1 CN 2019128053 W CN2019128053 W CN 2019128053W WO 2020135444 A1 WO2020135444 A1 WO 2020135444A1
Authority
WO
WIPO (PCT)
Prior art keywords
configuration information
search space
terminal
blind
dci
Prior art date
Application number
PCT/CN2019/128053
Other languages
English (en)
Chinese (zh)
Inventor
杭海存
葛士斌
王潇涵
纪刘榴
Original Assignee
华为技术有限公司
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
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2020135444A1 publication Critical patent/WO2020135444A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0038—Blind format detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel

Definitions

  • This application relates to the field of communication technology, and in particular, to a method and device for detecting downlink control information (downlink control information, DCI).
  • DCI downlink control information
  • CoMP Coordinated multiple transmission
  • TRP transmission points
  • CoMP technology can improve system performance, especially improve spectrum efficiency at the cell edge.
  • NEB non-ideal backhaul
  • NR New Radio
  • Embodiments of the present application provide a DCI detection method and device, and specifically provide a method and device for performing blind DCI detection in a scenario in which collaborative transmission scenarios, such as multiple TRPs delivering multiple DCIs in a time slot, are performed by a terminal.
  • the scenario of cooperative transmission may be a scenario of a multi-station service terminal or a scenario of collaborative transmission of multiple antenna panels in a single station.
  • an embodiment of the present application provides a DCI detection method, which is applied to a terminal.
  • the method includes: receiving N configuration information, each configuration information is used to configure at least one search space set, and each search space set includes at least One search space; N ⁇ 2, N is an integer; according to the N configuration information, it is determined that DCI blind inspection is performed in the search space configured by the N configuration information.
  • the terminal can perform DCI blind detection in the search space configured by all the configuration information when receiving multiple configuration information.
  • the N configuration information may be configuration information sent by a part or all of network devices (such as TRP) cooperatively participating in data transmission of a terminal or jointly receiving data sent by a terminal.
  • the DCI corresponding to the search space set configured by the N pieces of configuration information is the DCI transmitted in the same transmission time interval, such as a time slot. It should be noted that, for ease of description, in some embodiments of the present application, the DCI corresponding to the search space set configured by the configuration information is described as the DCI configured by the configuration information, which is described here in a unified manner, and will not be described in detail below.
  • network equipment involved in the embodiments of the present application may be TRP, base station network equipment, relay station or access point, etc., or may be TRP, base station network equipment, relay station or access point, etc. Antenna panel.
  • the configuration information is radio resource control (RRC) signaling.
  • RRC radio resource control
  • the configuration information may be PDCCH configuration (PDCCH-Config), where PDCCH is an abbreviation of physical downlink control channel (physical downlink control channel).
  • PDCCH physical downlink control channel
  • the configuration information may be control resource set group configuration, search space set group configuration, or DCI scrambling code configuration.
  • the configuration information may be cell configuration or cell group configuration.
  • the method may further include: performing DCI blind detection in the search space configured by the N configuration information according to the maximum number of blind detections of the terminal and the maximum number of non-overlapping control channel elements CCE of the terminal.
  • the maximum number of blind detections of the terminal in the scenario of a multi-station service terminal is greater than or equal to the maximum number of blind detections of the terminal in the scenario of a single-station service terminal.
  • the maximum number of non-overlapping CCEs of a terminal in the scenario of a multi-station service terminal is greater than or equal to the maximum number of non-overlapping CCEs of a terminal in a scenario of a single-station service terminal.
  • performing DCI blind detection in the search space configured by the N configuration information includes: according to the maximum number of blind detections of the terminal, The maximum number of non-overlapping CCEs and the value of N of the terminal determine the maximum number of blind checks and the maximum number of non-overlapping CCEs corresponding to each configuration information; for each configuration information, the maximum number of blind detections and the maximum non-overlapping CCEs based on this configuration information For the number of overlapping CCEs, DCI blind inspection is performed in the search space configured by this configuration information. In this way, it is helpful for the terminal to perform DCI blind detection in the search space configured by each configuration information, thereby helping to solve the problem of a high DCI discard rate and thereby improving the overall system performance.
  • the search space set configured by the N configuration information includes a first search space set and a second search space set, and the first search space set and the second search space set are configured by different configuration information Search space set; according to the terminal’s maximum number of blind inspections and the terminal’s maximum number of non-overlapping CCEs, perform DCI blind inspection in the search space configured by the above N configuration information, including: according to the terminal’s remaining number of blind inspections and the terminal’s remaining Number of non-overlapping CCEs, DCI blind inspection is performed in the search space included in the first search space set; the number of remaining blind inspections of the terminal is determined based on the maximum number of blind inspections of the terminal, and the number of remaining non-overlapping CCEs of the terminal is based on the maximum number of terminals The number of non-overlapping CCEs is determined; after the DCI blind inspection is completed in the search space included in the first search space set, the number of remaining blind inspections of the terminal and the number of remaining non-overlapping CCEs of the terminal are updated; according to
  • the embodiments of the present application support the technical solution that the two adjacent search space sets targeted by the terminal during the DCI blind detection are search space sets configured by different configuration information, which helps to realize DCI blind detection is performed in the search space configured by each configuration information, thereby helping to solve the problem of high DCI discard rate, thereby improving the overall system performance.
  • the N configuration information includes first configuration information
  • the first configuration information is any one of the N configuration information.
  • the method may further include: if the DCI blind inspection is completed in the search space configured by the first configuration information, stopping DCI blind inspection in the search space configured by the first configuration information.
  • the DCI blind inspection is completed in the search space configured by the first configuration information, including: all search spaces configured by the first configuration information have undergone DCI blind inspection; or, in the first configuration DCI is detected in the search space configured by the information; or, for the first configuration information, there is no remaining number of blind checks or the number of remaining non-overlapping CCEs.
  • the above N configuration information includes first configuration information and second configuration information
  • the method may further include: after completing DCI blind inspection in the search space configured by the first configuration information, if the first If the search space configured by the configuration information still has the number of remaining blind detections and/or the number of remaining non-overlapping CCEs, update the maximum number of blind detections and/or the number of non-overlapping CCEs corresponding to the second configuration information (specifically, according to the first The number of remaining blind inspections in the search space configured by the configuration information updates the maximum number of blind inspections corresponding to the second configuration information; the maximum number of non-overlapping CCEs in the search space configured by the first configuration information is updated to update the maximum corresponding to the second configuration information Number of non-overlapping CCEs).
  • performing blind DCI inspection in the search space configured by this configuration information may include: The maximum number of blind detections and/or the maximum number of non-overlapping CCEs corresponding to the second configuration information is to perform DCI blind detection in the search space configured by the second configuration information. In this way, there will be more DCI blind inspection opportunities for the search space configured for the second configuration information, thereby improving the utilization rate of the terminal blind inspection times.
  • the N configuration information includes target configuration information
  • the target configuration information may be any one of the N configuration information, or may be a specific one of the N configuration information.
  • the N configuration information may include one or more target configuration information.
  • performing DCI blind check in the search space configured by the above N configuration information includes: Number of overlapping CCEs and target aggregation level, DCI blind detection is performed in the search space included in the search space set configured by the target configuration information, the target aggregation level is greater than or equal to a preset threshold; or, according to the terminal’s maximum number of blind detections, the terminal’s Maximum number of non-overlapping CCEs and target DCI format, perform DCI blind inspection in the search space included in the search space set configured by the target configuration information; or, according to the maximum number of terminal blind inspections, the maximum number of non-overlapping CCEs of the terminal, and the target time
  • the domain symbol performs DCI blind detection
  • the target aggregation level may be regarded as a specific one or more aggregation levels.
  • the target DCI format can be regarded as a specific one or more DCI formats.
  • the target time domain symbol may be considered as a specific time domain symbol or symbols. That is to say, the embodiments of the present application support some blind conditions when performing DCI blind inspection in the search space configured by the target configuration information, which helps to reduce the number of blind inspections occupied by the search space configured by the target configuration information , So that the search space configured by other configuration information can obtain more DCI blind inspection opportunities, which in turn helps to improve the utilization rate of the terminal blind inspection times.
  • an embodiment of the present application provides a DCI detection device, which is configured to execute the method provided in the first aspect or any possible design of the first aspect.
  • the device may be a terminal or a chip.
  • the DCI detection apparatus may be divided into functional modules according to the method provided in the first aspect or any one of the possible designs in the first aspect, for example, each functional module may be divided corresponding to each function, It is also possible to integrate two or more functions in one processing module.
  • the device includes a processor and a transceiver.
  • the transceiver can be used to receive N configuration information, and each configuration information is used to configure at least one search space set, and each search space set includes at least one search space; N ⁇ 2, N is an integer.
  • the processor is configured to determine to perform DCI blind detection in the search space configured by the N configuration information according to the N configuration information.
  • an embodiment of the present application provides a DCI detection device.
  • the device includes a memory and a processor.
  • the memory is used to store a computer program.
  • the computer program is executed by the processor, the first aspect or any of the first aspect A possible design provided method was implemented.
  • the device may be a terminal or a chip.
  • an embodiment of the present application provides a processor configured to execute the method provided in the first aspect or any possible design of the first aspect.
  • the processor is used to input N configuration information, each configuration information is used to configure at least one search space set, each search space set includes at least one search space, N ⁇ 2, N is an integer; and, according to the N
  • the configuration information determines that blind DCI inspection is performed in the search space configured by the N pieces of configuration information.
  • an embodiment of the present application provides a DCI detection apparatus.
  • the apparatus includes a processor and a communication interface, wherein the processor is used to receive N configuration information through the communication interface, and each configuration information is used to configure at least one Search space set, each search space set includes at least one search space, N ⁇ 2, and N is an integer; and, based on the N configuration information, it is determined to perform DCI blind detection in the search space configured by the N configuration information.
  • the processor is used to receive N configuration information through the communication interface, and each configuration information is used to configure at least one Search space set, each search space set includes at least one search space, N ⁇ 2, and N is an integer; and, based on the N configuration information, it is determined to perform DCI blind detection in the search space configured by the N configuration information.
  • an embodiment of the present application provides a DCI detection device.
  • the device includes a processing circuit and an input interface, wherein the processing circuit is configured to receive N configuration information through the input interface, and each configuration information is used to configure at least A search space set, each search space set includes at least one search space, N ⁇ 2, N is an integer; and, based on the N configuration information, it is determined to perform DCI blind detection in the search space configured by the N configuration information .
  • the device may further include an output interface for outputting information so that the device can communicate with other devices (such as network devices).
  • the processor may be used to perform, for example, but not limited to, baseband related processing, and the receiver and transmitter may be used to perform, for example, but not limited to, radio frequency transceiver.
  • the above-mentioned devices may be provided on separate chips, or at least partly or completely on the same chip.
  • the receiver and the transmitter may be provided on separate receiver chips and transmitter chips. Can be integrated as a transceiver and then set on the transceiver chip.
  • the processor may be further divided into an analog baseband processor and a digital baseband processor, where the analog baseband processor and the transceiver may be integrated on the same chip, and the digital baseband processor may be provided on an independent chip.
  • digital baseband processors can be used with multiple application processors (such as but not limited to graphics processors, multimedia processors, etc.) Integrated on the same chip.
  • application processors such as but not limited to graphics processors, multimedia processors, etc.
  • a chip can be called a system chip (system on chip). Whether each device is independently set on different chips or integrated on one or more chips often depends on the specific needs of the product design. The embodiments of the present application do not limit the specific implementation form of the above device.
  • An embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored, and when the computer program is run on a computer, the computer is caused to execute the first aspect or any possible design of the first aspect
  • the computer may be a terminal.
  • An embodiment of the present application further provides a computer program product, which when executed on a computer, causes the method provided by the first aspect or any possible design of the first aspect to be executed.
  • the present application also provides a communication chip in which instructions are stored, which when executed on the terminal, causes the terminal to perform any method provided in the first aspect or any possible design of the first aspect.
  • any of the DCI detection devices or processors or computer-readable storage media or computer program products or communication chips provided above are used to perform the corresponding methods provided above, therefore, what they can achieve For beneficial effects, refer to the beneficial effects in the corresponding method, which will not be repeated here.
  • FIG. 1 is a schematic diagram of a communication system to which the technical solution provided by this application is applicable;
  • FIG. 2 is a schematic diagram of a hardware structure of a communication device applicable to an embodiment of the present application
  • FIG. 3 is an interactive schematic diagram of a DCI detection method provided by an embodiment of this application.
  • FIG. 4 is a schematic structural diagram of a DCI detection device provided by an embodiment of the present application.
  • the technical solution provided by this application can be applied to various communication systems using cooperative transmission technologies (such as CoMP technology or CoMP evolution technology, etc.), for example, multi-point cooperation technology is adopted on the basis of the existing communication system, 5G communication System, future evolution system or multiple communication fusion systems, etc.
  • M2M machine-to-machine
  • D2M macro-micro communication
  • enhanced mobile Internet enhanced mobile broadband (eMBB)
  • eMBB enhanced mobile broadband
  • ultra-high reliability and ultra-low latency communication ultra Reliable & low latency communication
  • URLLC ultra Reliable & low latency communication
  • massive IoT communication massive IoT communication
  • These scenarios may include, but are not limited to: communication scenarios between terminals and terminals, communication scenarios between network devices and network devices, communication scenarios between network devices and terminals, and so on.
  • the technical solution provided by the present application can also be applied in scenarios such as terminal-to-terminal communication in a 5G communication system, or communication between network devices and network devices.
  • the communication system may include multiple network devices 10 (only two are shown) and one or more terminals 20 (only shown) 1 terminal 20), wherein at least two network devices 10 provide services to one terminal 20 through cooperation.
  • the same network device 10 may provide services for different terminals 20, and the network devices 10 providing services for different terminals 20 may be the same or different.
  • the network device 10 may be a device or device that can communicate with the terminal 20.
  • the network device 10 may be a TRP, a base station network device, a relay station, an access point, or the like.
  • the network device 10 may be an antenna panel in a TRP, a base station network device, a relay station, an access point, or the like.
  • the network device 10 may be a global system for mobile (GSM) or code division multiple access (CDMA) base station transceiver station (BTS) in a network or a broadband NB (NodeB) in wideband code division multiple access (WCDMA) can also be eNB or eNodeB (evolutional NodeB) in LTE.
  • GSM global system for mobile
  • CDMA code division multiple access
  • BTS base station transceiver station
  • NodeB broadband NB
  • WCDMA wideband code division multiple access
  • the network device 10 may also be a wireless controller in a cloud radio access network (CRAN) scenario.
  • the network device 10 may also be a network device in a 5G communication system or a network device in a future evolution network; it may also be a wearable device or a vehicle-mounted device.
  • CRAN cloud radio access network
  • the terminal 20 may be a user equipment (UE), access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile device, UE terminal, terminal, wireless communication device, UE agent or UE device, etc.
  • Access terminals can be cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital processing (personal digital assistant (PDA), wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminals in future 5G networks or terminals in future evolved PLMN networks, etc.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • wireless communication Functional handheld devices computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminals in future 5G networks or terminals in future evolved PLMN networks, etc.
  • each network element in FIG. 1 may be implemented by the communication device 200 in FIG.
  • FIG. 2 is a schematic diagram of a hardware structure applicable to a communication device according to an embodiment of the present application.
  • the communication device 200 includes at least one processor 201, a communication line 202, a memory 203, and at least one communication interface 204.
  • the processor 201 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more used to control the execution of the program program of the present application integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the communication line 202 may include a path for transferring information between the above components.
  • the communication interface 204 is any transceiver-like device (such as an antenna, etc.), and is used to communicate with other devices or communication networks, such as Ethernet, RAN, and wireless local area networks (WLAN).
  • devices or communication networks such as Ethernet, RAN, and wireless local area networks (WLAN).
  • WLAN wireless local area networks
  • the memory 203 may be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory, RAM), or other types that can store information and instructions
  • the dynamic storage device can also be electrically erasable programmable read-only memory (electrically erasable programmable-read-only memory (EEPROM), read-only compact disc (compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), disk storage media or other magnetic storage devices, or can be used to carry or store the desired program code in the form of instructions or data structures and can be used by a computer Access to any other media, but not limited to this.
  • EEPROM electrically erasable programmable read-only memory
  • CD-ROM compact disc read-only memory
  • optical disc storage including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.
  • the memory may exist independently and be connected to the processor through the communication line 202.
  • the memory can also be integrated with the processor.
  • the memory provided by the embodiments of the present application may generally be non-volatile.
  • the memory 203 is used to store computer execution instructions for executing the solution of the present application, and the processor 201 controls the execution.
  • the processor 201 is used to execute computer-executed instructions stored in the memory 203, thereby implementing the method provided by the following embodiments of the present application.
  • the computer execution instructions in the embodiments of the present application may also be called application program codes, which are not specifically limited in the embodiments of the present application.
  • the processor 201 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 2.
  • the communication device 200 may include multiple processors, such as the processor 201 and the processor 207 in FIG. 2. Each of these processors can be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor.
  • the processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).
  • the communication device 200 may further include an output device 205 and an input device 206.
  • the output device 205 communicates with the processor 201 and can display information in various ways.
  • the output device 205 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector. Wait.
  • the input device 206 communicates with the processor 201 and can receive user input in a variety of ways.
  • the input device 206 may be a mouse, a keyboard, a touch screen device, or a sensing device.
  • the above communication device 200 may be a general device or a dedicated device.
  • the communication device 200 may be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, or a similar structure as shown in FIG. 2 equipment.
  • PDA personal digital assistant
  • the embodiment of the present application does not limit the type of the communication device 200.
  • control resource set control resource set
  • control resource set group CORESET
  • the control resource set may be a resource set used for transmitting DCI, and may also be called a control resource area, or a physical downlink control channel resource set.
  • Each control resource set may be a set of resource element groups (resource element group, REG).
  • REG is the basic unit of downlink control signaling for physical resource allocation, and is used to define the mapping of downlink control signaling to resource elements (REs).
  • LTE long term evolution
  • REG is only a unit for resource allocation and should not constitute any limitation to this application. This application does not exclude the definition of new resource allocation units in future agreements to achieve the same or similar functions.
  • a control resource set may be understood as a set of resources that may be used for sending a PDCCH; for a terminal, resources corresponding to the search space of the PDCCH of each terminal belong to the control resource set.
  • the network device may determine the resource used to transmit the PDCCH from the control resource set, and the terminal may determine the search space of the PDCCH according to the control resource set.
  • the control resource set may include time-frequency resources.
  • the frequency domain may be a bandwidth, or one or more subbands, etc.; the time domain may be one or more symbols; and the control resource set may be time-frequency domain.
  • It is a continuous or discontinuous resource unit, for example, a continuous resource block (resource block (RB) or a discontinuous RB).
  • RB is an example of a resource unit
  • the size of RB may be a resource defined in the NR protocol or a resource defined in a future protocol, or it may be replaced with another name.
  • the control resource set may also be one or more slots, radio frames, subframes, mini slots (sub slots or sub slots), or transmission time intervals (transmission time interval, TTI) in the time domain. ), the embodiments of the present application do not specifically limit this.
  • the control resource set can be configured, for example, through a control resource set information element (ControlResourceSet information) element in high-level parameters.
  • the high-level parameters may include, for example, an identifier (ID) of the control resource set, a frequency domain resource, and the number of symbols included in the duration (duration). This application does not limit the specific parameters used to configure the control resource set.
  • a control resource set group may include one or more control resource sets.
  • the control resource set included in the control resource set group can be configured by high-level parameters, for example, can be configured by PDCCH configuration information element (PDCCH-Config information, PDCCH-Config IE), or can be configured by ControlResourceSet information, element, This application does not limit this.
  • the network device may configure multiple control resource set groups to the terminal, and one control resource set group includes at least one control resource set.
  • the control resource set included in the same control resource set group is a control resource set configured for DCI of the same network device.
  • the network device can also schedule the URLCC service in the control resource set group, that is, the network device can also send a URLCC service for the URLCC service in the control resource set group. Or multiple DCI.
  • search space set search space set, SS set
  • search space set group search space set group
  • the search space set may be a set of search spaces described from the perspective of the physical layer.
  • the search space set may also be referred to as search space (search space (SS)).
  • search space search space (SS)
  • search space set in this application, in order to distinguish it from the search space described below, it is referred to as a search space set in this application.
  • the network device can configure the search space set through high-level parameters, for example, it can be configured through a search space information element (SearchSpace information) element.
  • the high-level parameters may include, for example, the identification of the search space set, the identification of the control resource set, the period and offset of the monitoring time slot, the monitoring symbol in the time slot, and aggregation level (AL). This application does not limit the specific parameters for configuring the search space.
  • a search space set group may include one or more search space sets.
  • the search space set included in the search space set group can be configured by high-level parameters, for example, can be configured by PDCCH-Config information element, or can be configured by SearchSpace information element, which is not limited in this application.
  • the SearchSpace information element mentioned here is a high-level parameter.
  • the high-level parameter can be considered to be used to configure a set of search spaces.
  • the search space can be understood as a set of search spaces of the physical layer. For brevity, the description of the same or similar cases is omitted below.
  • the network device may configure multiple search space set groups to the terminal, and one search space set group includes at least one search space set.
  • the search space set included in the same search space set group is a search space set configured for DCI of the same network device.
  • the network device can also schedule the URLCC service in the search space set; that is, the network device can also be sent in the search space set to schedule the URLCC service.
  • One or more DCI are examples of the network device.
  • control channel element control channel element, CCE
  • CCE is a resource unit of the control channel. According to the LTE protocol, one CCE is composed of 9 REGs. It should be understood that CCE is only a resource unit of a control channel, and should not constitute any limitation to this application. This application does not exclude the definition of a new resource unit of a control channel in a future protocol to achieve the same or similar functions.
  • the search space is the search range of the terminal blind detection, or the set of candidate downlink control channels that the terminal needs to monitor.
  • the physical resources of the search space can be jointly determined by the set of control resources and the set of search spaces.
  • the control resource set may indicate the frequency domain position and duration of the search space
  • the search space set may indicate the starting position of the search space in the time domain, such as the starting time slot.
  • the terminal may jointly determine the time-frequency resource of the blind detection PDCCH based on the control resource set and the search space set configured in the PDCCH configuration.
  • the search space jointly determined by the control resource set and the search space set is referred to as the search space in the search space set, which is described here in a unified manner and will not be described in detail below.
  • one search space set may correspond to one or more aggregation levels.
  • a search space set corresponds to several aggregation levels and the corresponding value of each aggregation level may be predefined, such as predefined by a protocol, or configured by a network device to the terminal through signaling.
  • the search space may include a common search space (common search space) and a dedicated search space (specific search space).
  • the common search space refers to a search space where all terminals in the cell monitor.
  • the dedicated search space is a search space of terminal granularity, and the dedicated search spaces of different terminals in the same cell may be different.
  • a cell may also be called a serving cell.
  • a cell can be understood as a high-level description from the perspective of resource management or mobility management or a service unit.
  • the coverage of each network device can be divided into one or more serving cells, and the serving cell can be regarded as consisting of a certain frequency domain resource.
  • the cell may be replaced with a serving cell or a component carrier (CC, or component carrier, component carrier, carrier, etc.).
  • CC component carrier
  • “cell”, “serving cell” and “CC” are used interchangeably. When the difference is not emphasized, the meaning to be expressed is the same.
  • each cell when multiple cells simultaneously serve the same terminal, each cell may correspond to a control resource set group or a search space set group.
  • each cell group when multiple cell groups provide services for the same terminal, each cell group may correspond to a control resource set group or a search space set group.
  • the network device may configure PDCCH parameters based on each bandwidth part (BWP) in each cell, for example, control resource set, control resource set group (CORESET) group, search space set, search space set group (SS group) And other parameters that can be used for blind detection of PDCCH.
  • the PDCCH configuration may be configured through PDCCH-ConfigIE in the higher layer parameters, for example.
  • the PDCCH-Config IE may include, for example, a control resource set addition status list (controlResourceSetToAddModList) and a control resource set release list (controlResourceSetToReleaseList). Each list may include the identification of one or more control resource sets.
  • the PDCCH-Config IE may also include a search space addition status list (searchSpacesToAddModList) and a search space release list (searchSpacesToReleaseList), for example. Each list may include the identification of one or more search spaces.
  • each PDCCH configuration may also indicate one or more control resource set groups and/or one or more search space set groups.
  • the control resource set addition status list in the PDCCH-Config IE may include one or more control resource set group identifiers and control resource set identifiers contained in each control resource set group.
  • the search space increase list in the PDCCH-Config IE may include one or more search space set group identifiers and the search space set identifiers included in each search space set group.
  • each PDCCH configuration may also indicate one or more DCI scrambling codes.
  • the control resource set increase status list in the PDCCH-Config IE may include one or more DCI scrambling code identifiers and search space set identifiers corresponding to the DCI scrambling codes.
  • One or more search spaces can be determined by PDCCH configuration.
  • the PDCCH configuration of the PDCCH can be understood as the PDCCH configuration on which the PDCCH is received, or the terminal blindly detects the PDCCH in the search space determined by the PDCCH configuration; for the network device
  • the PDCCH configuration of the PDCCH can be understood as the PDCCH configuration on which the PDCCH is transmitted, or in other words, the network device transmits the PDCCH on a part of resources in the search space determined by the PDCCH configuration.
  • blind detection PDCCH and “blind detection DCI” or “performing DCI blind detection” described in the embodiments of the present application are the same and can be used interchangeably.
  • transmitting PDCCH and “transmitting DCI” described in the embodiments of the present application are the same, and they can be used interchangeably.
  • receiving PDCCH and “receiving DCI” are the same, and they can be used interchangeably.
  • control channel elements control channel elements
  • the two search space sets are considered to overlap, or the two search space sets There are overlapping CCEs.
  • the concept of "the number of non-overlapping CCEs in the search space set" is introduced in the embodiments of the present application.
  • the number of non-overlapping CCEs in a search space set can be understood as the number of effective search spaces included in the search space set.
  • the effective search space included in a search space set refers to the search space included in the search space set and not belonging to other search space sets in the front.
  • the search space set belongs to the same search space set group as the other search space sets.
  • the order of each search space set in a search space set group is determined according to the order in which the terminal performs DCI blind detection in the search spaces included in each search space set, for example, in a search space set group
  • the order of each search space set is the order in which the terminal performs DCI blind detection in the search space included in each search space set.
  • the number of DCI blind detections required for a search space set refers to the sum of the number of search spaces included in the search space set determined according to each aggregation level of the DCI corresponding to the search space set. For example, assuming that the aggregation level of the DCI corresponding to a search space set is 1, 2, 4, and 8, respectively, the number of DCI blind tests required by the search space set is: when the aggregation level is equal to 1, 2, 4, and 8, respectively, The sum of the number of search spaces included in the search space set.
  • At least one (species) in the embodiments of the present application includes one (species) or a plurality (species).
  • Multiple (species) means two (species) or more than two (species).
  • at least one of A, B, and C includes the presence of A alone, B alone, A and B, A and C, B and C, and A, B, and C.
  • “/" means “or”, for example, A/B can mean A or B;
  • and/or” in this article is just a description of the relationship between related objects, indicating that There are three kinds of relationships, such as A and/or B, which can be expressed as: there are three cases where A exists alone, A and B exist simultaneously, and B exists alone.
  • Multiple means two or more than two.
  • the words “first” and “second” are used in the embodiments of the present application to distinguish the same items or similar items whose functions and functions are basically the same. Those skilled in the art may understand that the words “first” and “second” do not limit the number and the execution order, and the words “first” and “second” do not necessarily mean different.
  • the terminal performs blind DCI detection only in the search space configured by the PDCCH configuration.
  • the terminal preferentially performs DCI blind inspection in the public search space, and performs DCI blind inspection in the dedicated search space after completing the DCI blind inspection in the public search space.
  • the process of the terminal performing blind DCI inspection in the dedicated search space may include the following steps:
  • Step 1 The terminal obtains the maximum number of blind inspections in the dedicated search space of the terminal according to the maximum number of blind inspections of the terminal minus the number of blind inspections used by the terminal for DCI blind inspection in the public search space.
  • the terminal obtains the maximum number of non-overlapping CCEs in the dedicated search space of the terminal according to the maximum number of non-overlapping CCEs of the terminal minus the number of non-overlapping CCEs used for DCI blind detection in the common search space of the terminal.
  • Step 2 When multiple search space sets are included in the PDCCH configuration, the terminal according to the identity number (Identity, ID) of multiple dedicated search space sets configured in the PDCCH configuration (that is, the identification of the search space set) in ascending order To sort the multiple dedicated search space sets, it is assumed that there are J dedicated search space sets, and the sorted dedicated search space sets are respectively marked as search space sets 0 to J-1.
  • the search space set i is discarded, that is, DCI blind inspection is not performed in the search space included in the search space set i, and the DCI blind inspection process is ended.
  • the initial value of i is 0, 0 ⁇ i ⁇ J-1.
  • a possible implementation manner is to uniformly sort the set of search spaces configured by multiple configuration information received by the terminal, and follow the steps in step 3 above Blind DCI inspection.
  • the terminal may perform DCI blind detection on the search space configured by some configuration information.
  • the search space configured by another part of the configuration information cannot perform DCI blind detection, which leads to the problem of high DCI discard rate. This will affect the overall performance of the system.
  • FIG. 3 it is a schematic diagram of a DCI detection method provided by an embodiment of the present application.
  • the method shown in Figure 3 includes:
  • the network device sends N configuration information.
  • Each configuration information is used to configure at least one search space set, and each search space set includes at least one search space; N ⁇ 2, N is an integer.
  • S102 The terminal receives the N pieces of configuration information.
  • the technical solution provided by the embodiments of the present application is applied to a scenario of cooperative transmission.
  • the scenario of collaborative transmission may be a scenario of a multi-station service terminal or a scenario of cooperative transmission of multiple antenna panels in a single station.
  • the "network device" in S101 may be a part or all of a network device that cooperatively participates in data transmission of the terminal or jointly receives data sent by the terminal.
  • the number of search spaces configured by different configuration information may be the same or different. Generally, the search space sets configured by different configuration information do not overlap. Of course, the embodiments of the present application are not limited thereto.
  • the configuration information may be carried through RRC signaling. During specific implementation, the terminal may not perceive which network device sent the N pieces of configuration information.
  • the configuration information may be PDCCH configuration.
  • PDCCH configuration please refer to the above.
  • the above N pieces of configuration information may specifically be N pieces of PDCCH configuration (that is, PDCCH configuration).
  • the terminal needs to distinguish IDs configured by the PDCCH, and one ID configured by the PDCCH corresponds to at least one search space set.
  • the configuration information may be control resource set group configuration.
  • the control resource set group configuration is information for configuring the correspondence between the control resource set group and the control resource set. Since there is a correspondence between the control resource set and the search space set, the control resource set group configuration can be used indirectly to configure the correspondence between the control resource set group and the search space set.
  • a control resource set group configuration may be understood as an indication information in the PDCCH configuration, and a PDCCH configuration may carry one or more control resource set configurations.
  • the above N configuration information may be N control resource set group configurations, and the N control resource set group configurations may be carried in one or more PDCCH configurations and sent by the network device to the terminal.
  • the configuration information may be search space set configuration.
  • the search space set group configuration is information for configuring the correspondence between the search space set group and the search space set.
  • a search space set group configuration may be understood as an indication information in the PDCCH configuration, and a PDCCH configuration may carry one or more search space set group configurations.
  • the foregoing N configuration information may be N search space set group configurations, and the N control resource set group configurations are carried in one or more PDCCH configurations and sent by the network device to the terminal.
  • the configuration information may be cell configuration.
  • the cell configuration is information for configuring the correspondence between the cell and the search space set.
  • This optional method may be applicable to a scenario where multiple cells (specifically, network devices in multiple cells) provide services for the same terminal.
  • the terminal needs to distinguish the ID of the cell, thereby indirectly distinguishing different PDCCH configurations.
  • the terminal may complete the blind detection corresponding to the cell after completing DCI blind detection for one of the cells The number of times and/or the number of remaining non-overlapping CCEs are allocated to other cells.
  • the configuration information may be cell group configuration.
  • the cell group configuration is used to configure the information of the correspondence between the cell group and the cell. Since the cell configuration can be used to configure the correspondence between the cell and the search space set, the cell group configuration can be used indirectly to configure the correspondence between the cell group and the search space set.
  • This optional method can be applied to a scenario where multiple cell groups (specifically, network devices in multiple cell groups) provide services for the same terminal. In this optional implementation, the terminal needs to distinguish the ID of the cell group, thereby indirectly distinguishing different PDCCH configurations.
  • the terminal may complete the DCI blind detection for one of the cell groups, and then the remaining cell corresponding to the cell group The number of blind checks and/or the number of remaining non-overlapping CCEs are allocated to other cell groups.
  • the configuration information may be DCI scrambling code configuration.
  • the DCI scrambling code configuration is information for configuring the correspondence between the DCI scrambling code and the search space set. It can be understood that the DCI scrambling code configuration can be understood as the indication information in the PDCCH configuration, and one PDCCH configuration can carry one or more DCI scrambling code configurations.
  • the configuration information is specifically which of the above configurations, may be predefined, such as predefined by a protocol; or may be configured by a network device to the terminal through signaling. This embodiment of the present application does not limit this.
  • the terminal determines to perform DCI blind detection in the search space configured by the N configuration information according to the N configuration information. For example, the terminal performs blind DCI inspection in the search space configured by all the received configuration information. For each configuration information, the terminal may perform DCI blind detection in part or all of the search space configured by the configuration information.
  • the terminal may perform DCI blind detection in the search space configured by all configuration information when receiving multiple configuration information.
  • DCI blind inspection cannot be performed on the search space configured by other configuration information, which leads to the problem of high DCI discard rate; thus helping to improve the overall system performance.
  • the method may further include the following step S104:
  • the terminal performs DCI blind detection in the search space configured by the N configuration information according to the maximum number of blind detections of the terminal and the maximum number of non-overlapping CCEs of the terminal.
  • the maximum number of blind detections and the maximum number of non-overlapping CCEs of the terminal described in the embodiments of the present application may be determined based on the subcarrier interval.
  • the current 5G NR agreement stipulates that when the subcarrier spacing is 15 kHz (kilohertz), the maximum number of blind detections of the terminal is 44 and the maximum number of non-overlapping CCEs of the terminal is 56. It should be understood that this example is proposed on the basis of a single-station service terminal. Based on this, it is extensible that for the same subcarrier interval, the maximum number of blind detections of the terminal in the scenario of a multi-station service terminal is greater than or equal to the maximum number of blind detections of the terminal in the scenario of a single-station service terminal.
  • the maximum number of non-overlapping CCEs of a terminal in the scenario of a multi-station service terminal is greater than or equal to the maximum number of non-overlapping CCEs of a terminal in a scenario of a single-station service terminal.
  • the maximum number of blind checks of the terminal described in the embodiments of the present application may refer to the maximum number of blind checks of the dedicated search space for the terminal.
  • the maximum number of non-overlapping CCEs of the terminal described in the embodiments of the present application may all refer to the maximum number of non-overlapping CCEs of the dedicated search space for the terminal.
  • the N configuration information includes target configuration information
  • the target configuration information may be any one of the N configuration information, or may be a specific one of the N configuration information.
  • the N pieces of configuration information may include one or more target configuration information. Based on this, S104 can be implemented through one of the following schemes:
  • Scenario 1 According to the maximum number of blind detections of the terminal, the maximum number of non-overlapping CCEs of the terminal, and the target aggregation level, blind DCI detection is performed in the search space included in the search space set configured by the target configuration information.
  • the target aggregation level is greater than or equal to a preset threshold.
  • the interference-to-noise ratio (signal to interference plus noise ratio) of the terminal at the cell edge is poor compared to the terminal at the center of the cell.
  • the aggregation level can be selected from 8 and 16 or 32. Based on this, for certain configuration information or certain configuration information, only a relatively high aggregation level may be used for blind DCI detection.
  • the embodiment of the present application does not limit “how the terminal determines whether to use all available aggregation levels for DCI blind detection for one configuration information, or specific one or more aggregation levels for DCI blind detection”.
  • network devices can be divided into primary and secondary network devices.
  • the difference between the primary and secondary network devices is that the aggregation level corresponding to the DCI configured by the primary network device for the service it invokes is all available aggregation levels, and the secondary network device is its
  • the aggregation level corresponding to the DCI of the invoked service configuration is a specific aggregation level or aggregation levels, such as a relatively high aggregation level.
  • the network device and the terminal can pre-define through a protocol or through signaling configuration to negotiate which configuration information configures the DCI used to schedule the service data of the master network device, and/or which configuration information is used DCI for scheduling service data of auxiliary network equipment.
  • the terminal may determine whether the aggregation levels required for the configuration information are all available aggregation levels or specific one or more aggregation levels based on the identification information of the configuration information.
  • Scenario 2 According to the maximum number of blind detections of the terminal, the maximum number of non-overlapping CCEs of the terminal, and the target DCI format, blind DCI detection is performed in the search space included in the set of search spaces configured by the target configuration information.
  • DCI format 1_0 DCI format 1_1.
  • Scenario 3 According to the maximum number of blind detections of the terminal, the maximum number of non-overlapping CCEs of the terminal, and the target time domain symbol, blind DCI detection is performed in the search space included in the set of search spaces configured by the target configuration information.
  • the same network device may send multiple DCIs on one time slot of a cell. For example, if the network device first schedules the eMBB service data of the terminal, the network device needs to send a DCI for the eMBB service data. At this time, if there are one or more burst packets such as URLLC service data, the network device needs to send one DCI for each burst packet.
  • the time domain symbol may be an orthogonal frequency division multiplexing (OFDM) symbol, etc.
  • the terminal can determine the DCI configured by the configuration information to be used to schedule the service data of the secondary network device, in a specific time domain symbol of a slot (such as the first three DCI blind detection in the time domain symbol). In this way, it helps to reduce the number of blind inspections occupied by the configuration information, so that the search space configured by other configuration information can obtain more DCI blind inspection opportunities, thereby improving the utilization rate of the blind inspection times of the terminal.
  • the network device and the terminal may be pre-defined through a protocol or configured through signaling to negotiate which configuration information the configured DCI is the DCI used to schedule the service data of the main network device and/or which configuration information It is DCI used for scheduling the service data of the auxiliary network equipment. Based on this, after receiving the configuration information, the terminal may determine whether to perform DCI blind detection on all time domain symbols of a time slot or DCI blind detection on specific time domain symbols based on the identification information of the configuration information.
  • the terminal can according to a specific aggregation level and a specific time
  • the field symbol is blindly checked by DCI.
  • the N configuration information includes first configuration information, and the first configuration information may be any one of the N configuration information.
  • the DCI blind inspection is stopped in the search space configured by the first configuration information.
  • DCI blind detection is completed in the search space configured by the first configuration information, which may include any one of the following ways a to c. In other words, when the first configuration information satisfies any one of the following ways a to c, it is considered that DCI blind detection is completed in the search space configured by the first configuration information.
  • Method a All search spaces configured by the first configuration information have undergone DCI blind inspection.
  • the search space here refers to the effective search space configured by the first configuration information.
  • Method b DCI is detected in the search space configured by the first configuration information. That is to say, the embodiment of the present application supports a technical solution for stopping DCI blind detection of a search space configured for the configuration information after detecting a DCI in the search space configured for the configuration information.
  • the application scenarios of mode b may include the following:
  • Application scenario 1 If the primary and secondary network devices are distinguished in the manner described in Scheme 3 above, then for the secondary network device, only one DCI will be sent in a time slot. Therefore, the configuration information to configure the DCI That is to say, after detecting a DCI, the terminal can stop DCI blind detection of the search space configured for the configuration information.
  • DCI can be divided into primary and secondary DCI. It can be understood that in the scenario of a multi-station service terminal, part of the DCI information sent by different network devices to the terminal is the same and changes slowly; another part of the information in the multiple DCIs is different.
  • the primary DCI may send this part of the same information, and the primary DCI does not need to be sent in every time slot, let alone multiple network devices; the secondary DCI sends other information. Based on this, from the perspective of the terminal, there can be only one primary DCI in a specific time slot. Therefore, for the configuration information for configuring the primary DCI, the terminal can stop the configuration information after detecting a primary DCI Blind detection of the main DCI of the configured search space. It should be noted that in this scenario, there may be a case where the DCI configured by the configuration information includes the primary DCI and the secondary DCI.
  • Application scenario 3 If a terminal is served by multiple cells at the same time, the cell can be divided into primary and secondary cells. The difference between the primary and secondary cells is that the network devices in the primary cell can schedule eMBB services and URLLC services. Of network devices can schedule eMBB services but not URLLC services. Based on this, for the configuration information received in the secondary cell, after detecting one DCI, the terminal may stop DCI blind detection of the search space configured for the configuration information.
  • the "cell" in the application scenario 3 can be replaced with a "cell group", thereby forming a new application scenario.
  • Manner c For the first configuration information, there is no remaining number of blind checks or the remaining number of non-overlapping CCEs. That is, the number of remaining blind checks for the first configuration information is 0 or the number of remaining non-overlapping CCEs is 0. For the specific implementation manner of this manner c, refer to the following.
  • S104 can be implemented in the following manner 1 or manner 2:
  • Method 1 S104 may include the following steps:
  • Step 1 According to the terminal's maximum number of blind checks, the terminal's maximum number of non-overlapping CCEs and the value of N, determine the maximum number of blind checks and the maximum number of non-overlapping CCEs corresponding to each configuration information.
  • the target parameter includes the maximum number of blind detections or the maximum number of non-overlapping CCEs of the terminal.
  • the configuration information may include indication information.
  • the indication information may be used to indicate the ratio of the maximum number of blind detections corresponding to the configuration information to the maximum number of blind detections of the terminal, and/or the number of maximum non-overlapping CCEs corresponding to the configuration information accounting for the maximum non-overlapping CCEs of the terminal The ratio of numbers.
  • "proportion" can be replaced with other equivalent concepts, such as percentage.
  • the terminal may determine the maximum number of non-overlapping CCEs corresponding to the configuration information based on the indication information.
  • the indication information may be used to indicate the maximum number of blind detections corresponding to the configuration information and/or the maximum number of non-overlapping CCEs corresponding to the configuration information.
  • Step 2 For each configuration information, based on the maximum number of blind checks corresponding to the configuration information and the maximum number of non-overlapping CCEs, perform DCI blind detection in the search space configured by the configuration information.
  • the terminal may perform the following steps:
  • sort the multiple search space sets configured by the first configuration information for example, sort the IDs of the multiple search space sets from small to large (or from large to small, etc.).
  • the terminal may discard the search space set, that is, no longer perform DCI blind detection in the search space included in the search space set, and end the DCI blind detection process for the configuration information.
  • the terminal may continue to perform DCI blind inspection in the search space included in the search space set until there is no remaining number of blind inspections or no remaining number of non-overlapping CCEs for the configuration information. DCI blind inspection process of configuration information. This can improve the utilization rate of the blind detection times of the terminal and help reduce the DCI discard rate.
  • the terminal may perform DCI blind detection of the search space configured for the multiple configuration information serially or in parallel. Whether the serial mode or the parallel mode is used may be determined by the terminal according to its own ability to process information. Of course, the terminal may also perform DCI blind detection on the search space configured by a part of the configuration information in the N configuration information in a serial manner, and perform DCI blind detection on the search space configured by another part of the configuration information in a parallel manner.
  • the N configuration information includes first configuration information and second configuration information, and the first configuration information is any one of the N configuration information, and the second configuration information is the first configuration information except the first configuration information Taking any configuration information other than the information as an example, performing DCI blind detection in a search space configured for multiple configuration information serially may include: after the terminal completes the DCI blind detection in the search space configured by the first configuration information, Perform DCI blind detection in the search space configured by the second configuration information.
  • Performing parallel DCI blind inspection for the search space configured by the multiple configuration information may include: the terminal performs the DCI blind inspection in the search space configured by the first configuration information while executing the DCI blind inspection configured by the second configuration information Perform blind DCI in the search space.
  • the method shown in FIG. 3 may further include: after the DCI blind detection is completed in the search space configured by the first configuration information, if The search space configured by the first configuration information still has the number of remaining blind detections and the number of remaining non-overlapping CCEs, and then the maximum number of blind detections and the maximum number of non-overlapping CCEs corresponding to the second configuration information are updated.
  • step 2 in the above manner 1 may include: performing DCI blind inspection in the search space configured by the second configuration information according to the maximum number of blind inspections and the maximum number of non-overlapping CCEs corresponding to the updated second configuration information.
  • the optional implementation manner may be applied to a scenario where DCI blind inspection of search spaces configured for multiple configuration information is performed serially or in parallel.
  • the terminal may allocate the remaining number of blind inspections and the remaining number of non-overlapping CCEs corresponding to the configuration information to another configuration information after completing DCI blind inspection in the search space configured by the configuration information. There will be more DCI blind inspection opportunities for the search space configured for the other configuration information, so that the utilization rate of the terminal's blind inspection times can be improved.
  • S104 may include the following step:
  • Step 1 According to the number of remaining blind inspections of the terminal and the number of remaining non-overlapping CCEs of the terminal, perform DCI blind inspection in the search space included in the first search space set.
  • the remaining number of blind checks of the terminal is determined based on the maximum number of blind checks of the terminal, and the number of remaining non-overlapping CCEs of the terminal is determined based on the maximum number of non-overlapping CCEs of the terminal.
  • step 1 the remaining number of blind checks of the terminal is greater than or equal to the number of blind checks required for DCI blind checking in the search space included in the first search space set, and the number of remaining non-overlapping CCEs of the terminal If the number of non-overlapping CCEs is greater than or equal to the first search space set, then DCI blind detection is performed in the search space included in the first search space set.
  • the remaining number of blind detections of the terminal is equal to the maximum blindness of the terminal
  • the number of detections, and the number of remaining non-overlapping CCEs of the terminal is equal to the maximum number of non-overlapping CCEs of the terminal.
  • the remaining number of blind detections of the terminal is equal to the terminal's maximum blind detection times minus the used
  • the value obtained by the number of blind detections of the terminal, and the number of remaining non-overlapping CCEs of the terminal is equal to the value of the maximum number of non-overlapping CCEs of the terminal minus the number of used non- overlapping CCEs.
  • Step 2 After the DCI blind inspection is completed in the search space included in the first search space set, the number of remaining blind inspections of the terminal and the number of remaining non-overlapping CCEs of the terminal are updated.
  • Step 3 Perform blind DCI inspection in the search space included in the second search space set according to the updated number of remaining blind inspections of the terminal and the number of remaining non-overlapping CCEs of the terminal.
  • the number of remaining blind checks of the updated terminal is greater than or equal to the number of blind checks required for DCI blind checking in the search space included in the second search space set, and the number of remaining non-overlapping CCEs of the updated terminal is greater than Or equal to the number of non-overlapping CCEs in the second search space set, then perform blind DCI inspection in the search space included in the second search space set.
  • the remaining configuration information in the N configuration information refers to the configuration information in which the DCI blind inspection has not been performed among the N configuration information.
  • the remaining set of search spaces configured by the configuration information refers to the set of search spaces configured by the configuration information that has not been subjected to DCI blind inspection.
  • the terminal performs DCI blind
  • the sequence of search space sets targeted by the inspection may be: search space sets 1A, 2A, 1B, 2B, 1C, and 2C.
  • the N configuration information is configuration information 1 and configuration information 2
  • configuration information 1 configures search space sets 1A, 1B, 1C, 1D, and 1E
  • configuration information 2 configures search space sets 2A, 2B, and 2C
  • the sequence of search space sets targeted by the terminal for performing DCI blind inspection may be: search space sets 1A, 2A, 1B, 2B, 1C, 2C, 1D, and 1E.
  • the remaining configuration information in the N configuration information is configuration information 1
  • the remaining search space set configured by the configuration information 1 is the search space set 1D and 1E.
  • the above mainly introduces the solutions provided by the embodiments of the present application from the perspective of a method.
  • it includes hardware structures and/or software modules corresponding to performing each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driven hardware depends on the specific application of the technical solution and design constraints. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.
  • the embodiments of the present application may divide the function modules of the DCI detection device (specifically the terminal) according to the above method example, for example, each function module may be divided corresponding to each function, or two or more functions may be integrated in one process Module.
  • the above integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of the modules in the embodiments of the present application is schematic, and is only a division of logical functions. In actual implementation, there may be another division manner.
  • FIG. 4 it is a schematic structural diagram of a DCI detection device 40 provided by an embodiment of the present application.
  • the device 40 may specifically be a terminal.
  • the device 40 may include a receiving unit 401 and a processing unit 402.
  • the receiving unit 401 is configured to receive N configuration information, and each configuration information is used to configure at least one search space set, and each search space set includes at least one search space; N ⁇ 2, and N is an integer.
  • the processing unit 402 is configured to determine, according to the N configuration information, to perform blind control of the downlink control information DCI in the search space configured by the N configuration information.
  • the device 40 may specifically be the terminal in FIG. 3, the receiving unit 401 may be used to execute S102, and the processing unit 402 may be used to execute S103.
  • the configuration information is PDCCH configuration, control resource set group configuration, search space set group configuration, cell configuration, cell group configuration, or DCI scrambling code configuration.
  • the processing unit 402 is further configured to perform DCI blind detection in a search space configured by N configuration information according to the maximum number of blind detections of the terminal and the maximum number of non-overlapping control channel elements CCE of the terminal.
  • the processing unit 402 may be used to perform S104.
  • the processing unit 402 is specifically configured to determine the maximum number of blind inspections and the maximum number of non-overlapping CCEs corresponding to each configuration information according to the maximum number of blind inspections of the terminal, the maximum number of non-overlapping CCEs of the terminal, and the value of N; For each configuration information, based on the maximum number of blind detections corresponding to the configuration information and the maximum number of non-overlapping CCEs, DCI blind detection is performed in the search space configured by the configuration information.
  • the search space set configured by the N configuration information includes a first search space set and a second search space set, and the first search space set and the second search space set are search space sets configured by different configuration information; processing The unit 402 is specifically configured to: perform blind DCI inspection in the search space included in the first search space set according to the remaining blind inspection times of the terminal and the remaining non-overlapping CCE numbers of the terminal; the remaining blind inspection times of the terminal are based on the maximum blindness of the terminal The number of inspections is determined, and the number of remaining non-overlapping CCEs of the terminal is determined based on the maximum number of non-overlapping CCEs of the terminal; after the DCI blind inspection is completed in the search space included in the first search space set, the terminal’s remaining number of blind inspections and the terminal are updated Number of remaining non-overlapping CCEs; According to the updated number of remaining blind detections of the terminal and the number of remaining non-overlapping CCEs of the terminal, blind DCI detection is performed in the search space included in the second search space set.
  • the N configuration information includes first configuration information
  • the processing unit 402 is further configured to stop searching configured in the first configuration information if the DCI blind inspection is completed in the search space configured by the first configuration information DCI blind inspection is performed in the space; where the DCI blind inspection is completed in the search space configured by the first configuration information, including: all search spaces configured by the first configuration information have undergone DCI blind inspection; or, in the first DCI is detected in the search space configured by the configuration information; or, for the first configuration information, there is no remaining number of blind checks or the remaining number of non-overlapping CCEs.
  • the N configuration information includes first configuration information and second configuration information
  • the processing unit 402 is further configured to, after completing DCI blind inspection in the search space configured by the first configuration information, if the first configuration information There are still remaining blind detection times and remaining non-overlapping CCE numbers in the configured search space, and then the maximum blind detection times and the maximum non-overlapping CCE numbers corresponding to the second configuration information are updated.
  • the processing unit 402 is specifically configured to perform DCI blind inspection in the search space configured by the second configuration information according to the maximum number of blind inspections and the maximum number of non-overlapping CCEs corresponding to the updated second configuration information.
  • the N configuration information includes target configuration information
  • the processing unit 402 is specifically configured to: according to the maximum number of blind detections of the terminal, the maximum number of non-overlapping CCEs of the terminal, and the target aggregation level, set the search space set in the target configuration information DCI blind inspection is performed in the included search space, and the target aggregation level is greater than or equal to a preset threshold; or, based on the terminal’s maximum number of blind inspections, the terminal’s maximum number of non-overlapping CCEs, and the target DCI format, the search configured in the target configuration information DCI blind detection is performed in the search space included in the space set; or, based on the maximum number of blind detections of the terminal, the maximum number of non-overlapping CCEs of the terminal, and the target time domain symbol, in the search space included in the search space set configured by the target configuration information Perform a blind DCI test.
  • the above-mentioned receiving unit 401 may be implemented through the communication interface 204 in FIG. 2.
  • the above-mentioned processing unit 402 may be implemented by the memory 203 in FIG. 2 and the processor (such as the processor 201 and/or the processor 207).
  • An embodiment of the present application also provides a communication system, including a terminal and one or more network devices.
  • the terminal may be the corresponding DCI detection device 40 provided above.
  • the multiple antenna panels of the one network device or the multiple network devices may cooperate in data transmission of a terminal or jointly receive data sent by a terminal.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices.
  • the computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions can be transmitted from a website, computer, server, or data center via wire (e.g.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device including one or more servers and data centers that can be integrated with the medium.
  • Usable media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, solid state disk (SSD)), etc.

Landscapes

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

Abstract

Les modes de réalisation de la présente invention concernent un procédé et un dispositif de détection de DCI, se rapportant au domaine technique de la communication. Le procédé est appliqué dans un terminal et consiste à : recevoir N éléments d'informations de configuration, chaque élément d'informations de configuration étant utilisé pour configurer au moins un ensemble d'espaces de recherche, chaque ensemble d'espaces de recherche comprenant au moins un espace de recherche, N ≥ 2, N étant un nombre entier ; sur la base des N éléments d'informations de configuration, déterminer l'exécution d'une détection aveugle de DCI dans les espaces de recherche configurés par les N éléments d'informations de configuration. Le procédé selon l'invention peut être appliqué au domaine de la transmission collaborative.
PCT/CN2019/128053 2018-12-29 2019-12-24 Procédé et dispositif de détection de dci WO2020135444A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811647787.5 2018-12-29
CN201811647787.5A CN111385892B (zh) 2018-12-29 2018-12-29 Dci检测方法和装置

Publications (1)

Publication Number Publication Date
WO2020135444A1 true WO2020135444A1 (fr) 2020-07-02

Family

ID=71127661

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/128053 WO2020135444A1 (fr) 2018-12-29 2019-12-24 Procédé et dispositif de détection de dci

Country Status (2)

Country Link
CN (1) CN111385892B (fr)
WO (1) WO2020135444A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114064252A (zh) * 2020-07-30 2022-02-18 中兴通讯股份有限公司 Dci获取方法、装置及存储介质
EP4305904A1 (fr) * 2021-03-12 2024-01-17 Lenovo (Beijing) Limited Procédés et appareils d'économie d'énergie en réception discontinue
CN116527204B (zh) * 2023-06-28 2023-10-17 新华三技术有限公司 下行控制信息传输方法及装置、电子设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013096585A1 (fr) * 2011-12-20 2013-06-27 Ixia Procédés, systèmes et supports lisibles par ordinateur pour réduire l'impact de la fausse détection d'informations de commande de liaison descendante (dci) dans les données de canal de commande de liaison descendante physique (pdcch) à évolution à long terme (lte)
WO2018148002A1 (fr) * 2017-02-09 2018-08-16 Qualcomm Incorporated Recherche de candidats dans un canal de commande à liaisons multiples

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109076584B (zh) * 2016-06-29 2021-05-18 华为技术有限公司 通信方法、装置和系统
US11523376B2 (en) * 2017-01-05 2022-12-06 Huawei Technologies Co., Ltd. Method for downlink control channel design

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013096585A1 (fr) * 2011-12-20 2013-06-27 Ixia Procédés, systèmes et supports lisibles par ordinateur pour réduire l'impact de la fausse détection d'informations de commande de liaison descendante (dci) dans les données de canal de commande de liaison descendante physique (pdcch) à évolution à long terme (lte)
WO2018148002A1 (fr) * 2017-02-09 2018-08-16 Qualcomm Incorporated Recherche de candidats dans un canal de commande à liaisons multiples

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
HUAWEI ET AL: "Enhancements on multi-TRP/panel transmission", 3GPP DRAFT; R1-1812243, 16 November 2018 (2018-11-16), Spokane, USA, pages 1 - 9, XP051478409 *

Also Published As

Publication number Publication date
CN111385892A (zh) 2020-07-07
CN111385892B (zh) 2022-11-01

Similar Documents

Publication Publication Date Title
US11751262B2 (en) Electronic apparatus, a central node apparatus and a network side apparatus, a transmission method and a configuration method
US11039448B2 (en) Resource scheduling method and apparatus
US11968682B2 (en) Uplink dynamic grant-free transmission method and apparatus
US11258476B2 (en) Frequency hopping processing method and device
WO2017125037A1 (fr) Attribution de ressources de communication pour des réseaux de télécommunications
US20220190954A1 (en) Control Channel Design for Category-A Devices
WO2020135444A1 (fr) Procédé et dispositif de détection de dci
WO2019242461A1 (fr) Procédé et appareil de transmission d'informations
US20180007625A1 (en) Selective scheduling grant rejection for spectrum sharing in a wireless network
US20220070851A1 (en) Sidelink control information sending method and device
WO2021032015A1 (fr) Procédé de transmission d'informations de rétroaction et appareil de communication
US11510225B2 (en) Methods, terminal device and base station for physical downlink control channel monitoring
US9144079B1 (en) Dynamic adjustment of the number of uplink grants per random access response message
US20220303073A1 (en) Technologies for Reliable Physical Data Channel Reception in Wireless Communications
US20220304057A1 (en) Methods, terminal device and network node for uplink transmission
US20240155650A1 (en) Resource selection method and apparatus
WO2023123381A1 (fr) Procédé de détermination de domaine d'indication d'attribution de ressources, et dispositif terminal et dispositif de réseau
WO2021056330A1 (fr) Procédé et dispositif de traitement de données
WO2018137215A1 (fr) Procédé, dispositif et système pour améliorer la couverture d'un canal partagé de liaison descendante physique
US20210297200A1 (en) Method and apparatus for managing a resource in a wireless communication system
WO2022152826A1 (fr) Dispositif terminal et procédé associé pour la réservation de ressources
WO2019019115A1 (fr) Procédé et dispositif de commande de brouillage

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19906124

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19906124

Country of ref document: EP

Kind code of ref document: A1