WO2024041184A1 - Procédé et appareil de communication - Google Patents

Procédé et appareil de communication Download PDF

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Publication number
WO2024041184A1
WO2024041184A1 PCT/CN2023/103495 CN2023103495W WO2024041184A1 WO 2024041184 A1 WO2024041184 A1 WO 2024041184A1 CN 2023103495 W CN2023103495 W CN 2023103495W WO 2024041184 A1 WO2024041184 A1 WO 2024041184A1
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WO
WIPO (PCT)
Prior art keywords
control channel
combination
capability information
terminal device
symbols
Prior art date
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PCT/CN2023/103495
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English (en)
Chinese (zh)
Inventor
高飞
焦淑蓉
花梦
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华为技术有限公司
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Publication of WO2024041184A1 publication Critical patent/WO2024041184A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • 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
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data

Definitions

  • the present application relates to the field of communication technology, and in particular, to a communication method and device.
  • the physical downlink control channel (PDCCH) is used to carry downlink control information (DCI) sent by network equipment to terminal equipment.
  • the terminal equipment monitors the PDCCH to determine the DCI carried by the PDCCH.
  • a way for the terminal equipment to monitor the PDCCH is for the terminal equipment to monitor the PDCCH at the time span (span) granularity. That is, the terminal equipment monitors the maximum number of candidate PDCCHs and non-overlapping control channel elements for each span in the cell according to the protocol. (control channel element, CCE) number to monitor PDCCH.
  • CCE control channel element
  • the current protocol defines several span patterns, also called combinations (X, Y), where X represents the minimum time domain symbol interval between the starting symbols of two adjacent spans (continuous spans); Y Represents the maximum length of a span.
  • 1 span contains at least 1 PDCCH monitoring opportunity (PDCCH monitoring occasion, PDCCH MO).
  • PDCCH monitoring occasion PDCCH MO
  • each symbol in a span contains 1 symbol of PDCCH MO, which requires the terminal equipment to perform a blind detection operation on each symbol in a span, increasing the difficulty of blind detection by the terminal equipment. the complexity.
  • This application provides a communication method and device for reducing the complexity of blind detection of PDCCH by terminal equipment.
  • inventions of the present application provide a communication method that can be executed by a communication device.
  • the communication device can be a communication device or a communication device that can support the communication device to implement the functions required by the method, such as a chip system.
  • the following description takes the communication device as a terminal device as an example.
  • the communication device is a terminal device, or a chip provided in the terminal device, or other components used to implement functions of the terminal device.
  • the communication method includes: the terminal device sends first capability information to the network device, receives control channel configuration information from the network device, and receives the control channel within at least one time unit according to the control channel configuration information.
  • the first capability information is used to indicate the time domain length N of a control resource set (CORESET) supported by the terminal device.
  • the control channel configuration information is used to determine at least one time unit occupied by the control channel, and the length of each time unit is N.
  • the terminal device can report the time domain length N of CORESET supported by the terminal device to the network device, so that the network device determines the PDCCH configuration based on N to try to avoid that each symbol in a time unit contains 1 symbol.
  • PDCCH MO thereby reducing the complexity of blind detection of terminal equipment.
  • the time unit is span, and the span includes Z consecutive time domain symbols, and Z is less than the number of symbols included in one time slot.
  • the control channel configuration information is used to determine at least one time unit occupied by the control channel, including: the control channel configuration information is used to determine the combination (X, Y), where X is two adjacent time units The minimum time domain symbol interval between the starting symbols, Y is the maximum length of a time unit.
  • N 1
  • the combination (X, Y) is (2,2), (4,3) or (7,3)
  • the starting symbols of the two adjacent control channel monitoring opportunities are separated by P Time domain symbol
  • P is an integer greater than or equal to 1
  • one time unit includes at least one control channel monitoring opportunity.
  • the network device configures the PDCCH corresponding to the combination (X, Y), configure the continuous symbol of CORESET to 1.
  • combination (X,Y) such as combination (2,2), combination (4,3) or combination (7,3)
  • combination (2,1), combination (4,1) or combination can be realized
  • Combining (7,1) can avoid that each symbol in a time unit contains a PDCCH MO of 1 symbol, thereby reducing the complexity of blind detection by the terminal equipment.
  • the duration of PDCCH MO is 1 symbol, and the overlapping symbols of PDSCH and scheduled PDCCH are fewer, which can reserve more processing time for terminal equipment and help terminal equipment meet the needs of low-latency services.
  • the network device configures the PDCCH corresponding to the combination (X, Y), configure the CORESET persistence symbol to 2.
  • combination (X, Y) such as combination (4,3) or combination (7,3)
  • combination (4,2) or combination (7,2) can be implemented to avoid
  • Each symbol contains the PDCCH MO of 1 symbol, thereby reducing the complexity of blind detection by the terminal equipment.
  • the duration of PDCCH MO is reduced, and there are fewer overlapping symbols between PDSCH and scheduled PDCCH, which can reserve more processing time for terminal equipment and help terminal equipment meet the needs of low-latency services.
  • the first capability information is used to indicate the time domain length N of CORESET supported by the terminal device, including: the first capability information is used to indicate the time domain length N of CORESET supported by the terminal device on the first frequency band. N; or the first capability information is used to indicate the time domain length N of CORESET supported by the terminal equipment on the first cell; or the first capability information is used to indicate the time domain length N of the CORESET supported by the terminal equipment in the first frequency band combination.
  • the time domain length N of CORESET, where the first frequency band combination includes at least two frequency bands; or the first capability information is used to indicate the time domain length N of CORESET supported by the terminal device on the first carrier.
  • the first capability information may be for terminal equipment, for cells, or for frequency bands or frequency band combinations.
  • the first capability information is used to indicate the time domain length N of CORESET supported by the terminal device, including: the first capability information indicates whether at least one combination (X, Y) supports the N, where , a combination (X, Y) corresponds to an N, or at least one combination (X, Y) corresponds to an N.
  • the first capability information may be for one (X, Y) of the combinations (X, Y) supported by the terminal device, or may be for all (X, Y) of the combinations (X, Y) supported by the terminal device. X,Y).
  • the method further includes: the terminal device sending second capability information to the network device, the second capability information being used to instruct the terminal device to support the start symbol and the control channel monitoring opportunity within a time unit. /or the number of end symbols M, where M is an integer greater than or equal to 1.
  • This solution provides a constraint for determining the combination (X, Y), that is, it provides a new rule for determining the combination (X, Y). That is, in addition to reporting the supported CORESET time domain length N to the network device, the terminal device can also report to the network device the number M of start symbols and/or end symbols of the PDCCH MO supported by the terminal device within a time unit. Therefore, the network device configures the PDCCH configuration based on the time domain lengths N and M reported by the terminal device to try to avoid each symbol in a span containing a 1-symbol PDCCH MO and reduce the complexity of blind detection by the terminal device. And more time can be reserved for terminal equipment to process PDSCH, which helps terminal equipment meet the delay requirements of low-latency services. At the same time, it can also enable the terminal equipment to process the PDCCH uniformly within a time unit. From this perspective, it can also reduce the complexity of the terminal equipment.
  • the control channel configuration information is used to determine at least one time unit occupied by the control channel, including: the control channel configuration information is used to determine the combination (X, Y), where X is two adjacent time units The minimum time domain symbol interval between the starting symbols, Y is the maximum length of a time unit.
  • the second capability information is used to indicate that the terminal device supports the number M of start symbols or end symbols for controlling channel monitoring opportunities within a time unit, including: the first capability information indicates at least one combination Whether (X,Y) supports M, where one combination (X,Y) corresponds to an M, or at least one combination (X,Y) corresponds to an M.
  • the second capability information may be for one (X, Y) of the combinations (X, Y) supported by the terminal device, or may be for all (X, Y) of the combinations (X, Y) supported by the terminal device. X,Y).
  • inventions of the present application provide a communication method that can be executed by a communication device.
  • the communication device can be a communication device or a communication device that can support the communication device to implement the functions required by the method, such as a chip system.
  • the following description takes the communication device as a terminal device as an example.
  • the communication device is a terminal device, or a chip provided in the terminal device, or other components used to implement functions of the terminal device.
  • the communication method includes: the terminal device sends the second capability information to the network device, and receives the control channel configuration information from the network device. information, and receiving a control channel within at least one time unit according to the control channel configuration information.
  • the second capability information is used to indicate that the terminal device supports the number M of start symbols or end symbols for controlling channel monitoring opportunities within a time unit.
  • the control channel configuration information is used to determine at least one time unit occupied by the control channel.
  • the second capability information is used to indicate that the terminal device supports the number M of start symbols or end symbols for controlling channel monitoring opportunities within a time unit, including: the second capability information indicates at least one combination Whether (X,Y) supports M, where one combination (X,Y) corresponds to an M, or at least one combination (X,Y) corresponds to an M.
  • inventions of the present application provide a communication method that can be executed by a communication device.
  • the communication device can be a communication device or a communication device that can support the communication device to implement the functions required by the method, such as a chip system.
  • the following description takes the communication device as a network device as an example.
  • the communication device is a network device, or a chip provided in the network device, or other components used to implement the functions of the network device.
  • the communication method includes: the network device receives the first capability information from the terminal device, sends control channel configuration information to the terminal device, and sends the control channel within at least one time unit.
  • the first capability information is used to indicate the time domain length N of CORESET supported by the terminal device.
  • the control information configuration information is used to determine at least one time unit occupied by the control channel, and the length of each time unit is N.
  • the time unit includes Z consecutive time domain symbols, and Z is smaller than the number of symbols included in one time slot.
  • the control channel configuration information is used to determine at least one time unit occupied by the control channel, including: the control channel configuration information is used to determine the combination (X, Y), where X is two adjacent time units The minimum time domain symbol interval between the starting symbols, Y is the maximum length of a time unit.
  • the combination (X, Y) is (2,2), (4,3) or (7,3), and the starting symbols of the two adjacent control channel monitoring opportunities are spaced M time domain symbols, M is an integer greater than or equal to 1, and one time unit includes at least one control channel monitoring opportunity.
  • the control channel configuration information is used to determine at least one time unit occupied by the control channel, including: the control channel configuration information is used to determine the combination (X, Y), where X is two adjacent time units The minimum time domain symbol interval between the starting symbols, Y is the maximum length of a time unit.
  • N 2
  • the combination (X, Y) is (4,3) or (7,3)
  • the sub-symbol sets where the two adjacent control channel monitoring opportunities are located are not adjacent
  • the different control channel monitoring opportunities are The intersection of the sub-symbol sets is the empty set.
  • the starting symbols of any two control channel monitoring opportunities are separated by Q time domain symbols, and Q is greater than or equal to X.
  • a symbol set includes at least one sub-symbol set, and a sub-symbol set corresponds to a control channel monitoring opportunity.
  • the starting symbol of the symbol set is a starting symbol of a control channel monitoring opportunity
  • the end symbol of the symbol set is a control channel monitoring opportunity.
  • the end symbol of the channel monitoring opportunity, and the symbols in the symbol set are continuous in the time domain.
  • the first capability information is used to indicate the time domain length N of CORESET supported by the terminal device, including: the first capability information is used to indicate the time domain length N of CORESET supported by the terminal device on the first frequency band. N; or the first capability information is used to indicate the time domain length N of CORESET supported by the terminal equipment on the first cell; or the first capability information is used to indicate the time domain length N of CORESET supported by the terminal equipment in the first frequency band combination. Length N, where the first frequency band combination includes at least two frequency bands; or the first capability information is used to indicate the time domain length N of CORESET supported by the terminal device on the first carrier.
  • the first capability information is used to indicate the time domain length N of CORESET supported by the terminal device, including: the first capability information indicates whether at least one combination (X, Y) supports N, where a A combination (X, Y) corresponds to an N, or at least one combination (X, Y) corresponds to an N.
  • the method further includes: the network device receives second capability information from the terminal device, the second capability information is used to indicate that the terminal device supports the starting symbol of the control channel monitoring opportunity within a time unit Or the number M of end symbols, where M is an integer greater than or equal to 1.
  • the control channel configuration information is used to determine at least one time unit occupied by the control channel, including: the control channel configuration information is used to determine the combination (X, Y), where X is two adjacent time units The minimum time domain symbol interval between the starting symbols, Y is the maximum length of a time unit.
  • the second capability information is used to indicate that the terminal device supports the number M of start symbols or end symbols for controlling channel monitoring opportunities within a time unit, including: the second capability information indicates at least one combination Whether (X,Y) supports the M, wherein one combination (X,Y) corresponds to one M, or at least one combination (X,Y) corresponds to one M.
  • the method further includes: the network device receives third capability information from the terminal device, and according to the The first capability information and/or the second capability information determine the control channel configuration information.
  • the third capability information is used to indicate that the terminal device supports control channel monitoring based on time unit level. That is, the terminal device reports the first capability information and the second capability information to the network device, and the network device determines the control channel configuration information based on the first capability information and/or the second capability information.
  • inventions of the present application provide a communication method that can be executed by a communication device.
  • the communication device can be a communication device or a communication device that can support the communication device to implement the functions required by the method, such as a chip system.
  • the following description takes the communication device as a network device as an example.
  • the communication device is a network device, or a chip provided in the network device, or other components used to implement the functions of the network device.
  • the communication method includes: the network device receives the second capability information from the terminal device, sends control channel configuration information to the terminal device, and sends the control channel within at least one time unit according to the control channel configuration information.
  • the second capability information is used to indicate that the terminal device supports the number M of start symbols or end symbols for controlling channel monitoring opportunities within a time unit.
  • the control channel configuration information is used to determine at least one time unit occupied by the control channel.
  • the second capability information is used to indicate that the terminal device supports the number M of start symbols or end symbols for controlling channel monitoring opportunities within a time unit, including: the first capability information indicates at least one combination Whether (X,Y) supports M, where one combination (X,Y) corresponds to an M, or at least one combination (X,Y) corresponds to an M.
  • embodiments of the present application provide a communication device, which has the function of implementing the behaviors in the method embodiments of any of the above-mentioned first to fourth aspects.
  • a communication device which has the function of implementing the behaviors in the method embodiments of any of the above-mentioned first to fourth aspects.
  • beneficial effects see the first to fourth aspects. The description of the corresponding aspects will not be repeated here.
  • the communication device may be the communication device in any of the first to fourth aspects, or the communication device may be a device capable of implementing the method provided in any of the first to fourth aspects, such as a chip or a chip system.
  • the communication device includes corresponding means or modules for performing the method of any aspect in the first to fourth aspects.
  • the communication device includes a processing unit (sometimes also called a processing module or processor) and/or a transceiver unit (sometimes also called a transceiver module or transceiver).
  • the transceiver unit may include a sending unit and a receiving unit. It can also be understood that the sending unit and the receiving unit are the same functional module.
  • the transceiver unit is also understood as a collective name for the sending unit and the receiving unit, and the sending unit and the receiving unit may be different functional modules.
  • These units can perform the corresponding functions in the above-mentioned method examples of the first aspect. For details, please refer to the detailed description in the method examples, which will not be described again here.
  • embodiments of the present application provide a communication device, which may be the communication device of the fifth aspect, or a chip or chip system provided in the communication device of the fifth aspect.
  • the communication device may be a terminal device or a network device.
  • the communication device includes a communication interface and a processor, and optionally, a memory. Wherein, the memory is used to store computer programs, and the processor is coupled to the memory and the communication interface. When the processor reads the computer program or instructions, the communication device causes the communication device to execute the method performed by the communication device in the above method.
  • embodiments of the present application provide a communication device, which includes an input-output interface and a logic circuit. Input and output interfaces are used to input and/or output information.
  • the logic circuit is used to perform the method described in any of the first to fourth aspects.
  • inventions of the present application provide a chip system.
  • the chip system includes a processor and may also include a communication interface for implementing the method described in any of the first to fourth aspects.
  • the chip system further includes a memory for storing a computer program.
  • the chip system can be composed of chips or include chips and other discrete devices.
  • embodiments of the present application provide a communication system, which includes a terminal device and a network device.
  • the terminal device is configured to execute the method executed by the communication device in the first aspect
  • the network device is configured to execute the method executed by the communication device in the third aspect.
  • the terminal device is configured to execute the method executed by the communication device in the above second aspect
  • the network device is configured to execute the method executed by the communication device in the above fourth aspect.
  • the communication system may include more terminal devices or more network devices.
  • the present application provides a computer-readable storage medium that stores a computer program.
  • the method in any of the above-mentioned first to fourth aspects is implemented. .
  • a computer program product includes: computer program code.
  • the method in any of the above-mentioned first to fourth aspects is performed. implement.
  • Figure 1 is a schematic diagram of a communication system applicable to the embodiment of the present application.
  • FIG. 2 is a schematic diagram of two PDCCH MOs provided by the embodiment of the present application.
  • Figure 3 shows the time domain positions of the PDCCH MO and span within a time slot provided by the embodiment of the present application
  • FIG. 5 is a schematic diagram of PDCCH configuration provided by an embodiment of the present application.
  • Figure 6 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • Figure 18 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 19 is another schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the technical solutions provided by the embodiments of this application can be applied to new radio (NR) systems, long term evolution (LTE) systems, non-terrestrial networks (non terrestrial networks, NTN) systems, or can also be applied to Next generation mobile communication system or other similar communication system.
  • NR new radio
  • LTE long term evolution
  • NTN non-terrestrial networks
  • Next generation mobile communication system or other similar communication system.
  • V2X vehicle to everything
  • IoT Internet of things
  • Figure 1 is a schematic diagram of the network architecture of a communication system applicable to the embodiment of the present application.
  • the communication system may include at least one network device and at least one terminal device, and each of the at least one terminal device can communicate with any network device.
  • Figure 1 takes a network device and two terminal devices (that is, terminal device 1 to terminal device 2 as an example). Among them, terminal device 1 to terminal device 2 can send information to the network device.
  • network device 1 or the network device can send information to any terminal device among terminal device 1 to terminal device 2. It should be noted that the number of network devices and terminal devices in Figure 1 is only an example, and more or less network devices or terminal devices may also be included.
  • a terminal device is a device with a wireless transceiver function that can send signals to or receive signals from network devices.
  • Terminal equipment may include user equipment (UE), sometimes also called terminal, access station, UE station, remote station, wireless communication equipment, or user device, etc.
  • UE user equipment
  • the terminal device is used to connect people, things, machines, etc., and can be widely used in various scenarios, including but not limited to the following scenarios: cellular communication, device to device (D2D), V2X, machine to machine/ Machine-to-machine/machine-type communications (M2M/MTC), IoT, virtual reality (VR), augmented reality (AR), industrial control (industrial control), driverless driving Terminal equipment in (self driving), remote medical, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, drones, robots and other scenarios.
  • the terminal device can be a mobile phone, tablet computer, game controller, smart glasses, smart bracelet, etc.
  • the various terminal devices introduced above can be considered as vehicle-mounted terminal equipment if they are located on the vehicle (for example, placed or installed in the vehicle).
  • vehicle-mounted terminal equipment is also called an on-board unit (OBU), for example.
  • OBU on-board unit
  • the terminal device of this application can also be a vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit built into the vehicle as one or more components or units.
  • the vehicle uses the built-in vehicle-mounted module, vehicle-mounted module, Vehicle-mounted components, vehicle-mounted chips or vehicle-mounted units can implement the method of the present application.
  • the network device may be an access device through which a terminal device wirelessly accesses the mobile communication system, including, for example, an access device.
  • Access network (AN) equipment such as base stations.
  • Network equipment may also refer to equipment that communicates with terminal equipment over the air interface.
  • the network equipment may include an evolved base station (eNB/e-NodeB) in the LTE system or long term evolution-advanced (LTE-A); the network equipment may also include a next-generation node in the NR system B (next generation node B, gNB); or, the network device can also include access nodes in a wireless-fidelity (Wi-Fi) system; or the network device can be a station, a relay station, a vehicle Equipment and future evolved public land mobile network (PLMN) equipment, equipment in D2D networks, equipment in M2M networks, equipment in the Internet of Things IoT network, or network equipment in PLMN networks, etc.
  • PLMN public land mobile network
  • the base station in the embodiment of the present application may include a centralized unit (CU) and a distributed unit (DU), and multiple DUs may be centrally controlled by one CU.
  • CU and DU can be divided according to the protocol layer functions of the wireless network they possess. For example, the functions of the packet data convergence protocol (PDCP) layer and above are set in CU and the protocol layer below PDCP, such as wireless link. Functions such as the radio link control (RLC) layer and the medium access control (medium access control, MAC) layer are set in the DU. It should be noted that this division of protocol layers is just an example, and division can also be performed on other protocol layers.
  • PDCP packet data convergence protocol
  • RLC radio link control
  • MAC medium access control
  • the radio frequency device can be remote and not placed in the DU, or it can be integrated in the DU, or partially remote and partially integrated in the DU.
  • the control plane (CP) and user plane (UP) of the CU can also be separated and implemented into different entities, respectively control plane CU entities (CU-CP entities). and user plane CU entities (CU-UP entities).
  • the CU control plane CU-CP also includes a further segmentation architecture, that is, the existing CU-CP is further segmented into CU-CP1 and CU-CP2.
  • CU-CP1 includes various radio resource management functions
  • CU-CP2 only includes radio resource control (RRC) functions and PDCP-C functions (that is, the basic functions of control plane signaling at the PDCP layer).
  • RRC radio resource control
  • the communication device used to realize the function of the network device or the terminal device may be a network device or a terminal device, or may be a device that can support the network device or the terminal device to realize the function, such as a chip system, and the device may be Installed in network equipment or terminal equipment.
  • the technical solution provided by the embodiments of the present application is described by taking the device for realizing the functions of the network device as a network device and the device for realizing the functions of the terminal device as a terminal device as an example.
  • Time slot refers to a basic time unit.
  • one time slot can occupy 14 consecutive symbols (conventional cyclic prefix) or 12 consecutive symbols (extended cyclic prefix) in the time domain.
  • the symbols in the embodiments of this application include but are not limited to orthogonal frequency division multiplexing (OFDM) symbols, sparse code multiplexing access (SCMA) symbols, filtered orthogonal frequency division multiplexing (filtered orthogonal frequency division multiplexing, F-OFDM) symbols and non-orthogonal multiple access (non-orthogonal multiple access, NOMA) symbols can be determined based on the actual situation and will not be described again here.
  • symbols are time domain symbols.
  • Time span also known as PDCCH monitoring time span (PDCCH monitoring span).
  • a time span is used as an example.
  • span is a time unit shorter than slot and is a time unit.
  • a slot can contain one or more spans.
  • the length of each span is at least Z consecutive time domain symbols, and Z is an integer greater than 0. It should be understood that Z consecutive time domain symbols refer to Z consecutive time domain symbols in the time domain.
  • CCE is the smallest unit of resource allocation for control information, that is, the resource allocation of control information is allocated based on CCE as the smallest unit.
  • 1 CCE is equal to 6 resource element groups (REG), and 1 REG is defined as 1 physical resource block (PRB) on 1 OFDM symbol.
  • REG resource element groups
  • PRB physical resource block
  • a PDCCH contains one or more CCEs.
  • the network device can choose to send the DCI on 1 CCE, 2 CCEs, 4 CCEs, 8 CCEs or 16 CCEs according to the size of the DCI and the reliability of control channel transmission.
  • the search space set includes a common search space set (CSS set) and a UE-specific search space set (USS set).
  • the common search space set can be used to send a common control channel for transmitting paging, system information, etc. to the terminal device.
  • the UE-specific search space set may be used to send a control channel for transmitting certain UE-specific control information to the terminal device.
  • the public search space collection It can also be used to send a control channel for transmitting control information specific to a certain UE to the terminal device, which is not limited in the embodiments of the present application.
  • a collection of search spaces can include one or more search spaces.
  • a search space is for a specific aggregation level (AL), that is, a search space is composed of one or more candidate PDCCHs under the same AL.
  • a candidate PDCCH is composed of n consecutive CCEs. Among them, n is AL.
  • the value range of n can be ⁇ 1, 2, 4, 8, 16 ⁇ .
  • a candidate PDCCH can be configured to carry DCI.
  • the network device can send the configuration information of a search space set to the terminal device.
  • the configuration information can include the starting OFDM symbol for PDCCH monitoring, the PDCCH monitoring period, and the control resource set (CORESET) associated with the search space set, etc. .
  • the terminal device can receive the PDCCH by listening to the search space set.
  • PDCCH MO is the duration for the terminal equipment to perform PDCCH blind detection for a search space set.
  • a PDCCH MO can be contained in a time slot (slot) or a time span (span).
  • a PDCCH MO can be jointly determined by the monitoring start symbol of a search space set and the CORESET associated with the monitored search space set.
  • the terminal device monitors a search space set and the monitoring start symbol is the first symbol in a slot.
  • This search space set is associated with a 3-symbol long CORESET, so the PDCCH MO that monitors this search space set is located
  • the first 3 symbols of the slot are the 1st symbol, 2nd symbol and 3rd symbol.
  • the number of time slots in the PDCCH MO interval can be called the listening cycle.
  • the minimum unit of the listening period is 1 time slot.
  • Subcarrier a subcarrier is the smallest granularity in the frequency domain.
  • the subcarrier width of one subcarrier also known as subcarrier spacing, is 15kHz; in NR, the subcarrier spacing may be 15kHz, 30kHz, 60kHz or 120kHz.
  • the span pattern also called combination (X, Y), can indicate at least one time unit (or span) occupied by the control channel, where The minimum time-domain symbol interval between starting symbols; Y represents the maximum length of a span.
  • One or more span patterns can also be called one or more (X, Y) combinations.
  • 3GPP 3rd generation mobile communications partnership project
  • the protocol stipulates the maximum number of candidate PDCCHs monitored within each span and the number of non-overlapping CCEs.
  • the terminal device can monitor based on the maximum number of candidate PDCCHs and the number of non-overlapping CCEs within each span. Monitor PDCCH.
  • Table 1 is the upper limit of the number of blind detections within a span in a serving cell under different bandwidth parts (BWP), for different subcarrier intervals and different span patterns (X, Y).
  • the upper limit value is also the maximum number of candidate PDCCHs to be monitored.
  • Table 2 is the maximum number of non-overlapping CCEs corresponding to a span pattern (X, Y) under different BWPs and under different subcarriers in a serving cell.
  • a span contains at least one PDCCH MO.
  • the start symbol of a span is the start symbol of a PDCCH MO, and the end symbol of a span is the end symbol of a PDCCH MO. That is, each PDCCH MO is completely included in 1 span. In other words, a PDCCH MO cannot cross the boundary of span.
  • Figure 2 is a schematic diagram of two PDCCH MOs.
  • Figure 2 takes the SS set associated with a CORESET with a duration of 3 OFDM symbols as an example, and takes the existence of two SS sets (i.e. SS set #1 and SS set #2) as an example.
  • the starting position of the UE monitoring SS set#1 is the first symbol in a slot, so the PDCCH MO monitoring this SS set#1 is the first 3 symbols of the slot, that is, the first symbol and the second symbol. and the 3rd symbol (see PDCCH MO#1 in Figure 2).
  • the starting position for monitoring SS set#2 by the UE is the 4th symbol in a slot, so the PDCCH MO for monitoring SS set#2 is the 4th symbol, the 5th symbol and the 6th symbol of the slot ( See PDCCH MO#2) in Figure 2.
  • the interval between PDCCH MO#1 and PDCCH MO#2 is 4 OFDM symbols.
  • system and “network” in the embodiments of this application can be used interchangeably.
  • multiple can also be understood as “at least two”.
  • At least one can be understood as one or more, for example, one, two or more.
  • including at least one means including one, two or more, and it does not limit which ones are included.
  • it includes at least one of A, B and C, then it can include A, B, C, A and B, A and C, B and C, or A and B and C.
  • “And/or” describes the relationship between related objects, indicating that there can be three relationships.
  • a and/or B can mean: A exists alone, A and B exist simultaneously, and B exists alone.
  • the character "/" unless otherwise specified, generally indicates that the related objects are in an "or" relationship.
  • ordinal numbers such as “first” and “second” mentioned in the embodiments of this application are used to distinguish multiple objects and are not used to limit the order, timing, priority or importance of multiple objects.
  • first capability information and the second capability information are only to distinguish different capability information, but not to limit the priority or importance of the two capability information.
  • 3GPP version (release) 16 introduced span-based PDCCH monitoring (Span-based PDCCH monitoring). Based on span-level PDCCH monitoring, that is, monitoring PDCCH with span as the granularity. Since span is a shorter time unit than slot, monitoring PDCCH with span as the granularity is equivalent to adding a PDCCH MO in a slot, which also increases the scheduling opportunity of network equipment, which is conducive to network equipment scheduling terminal equipment in a timely manner. Reduce scheduling delay.
  • 3GPP R15 stipulates slot-level PDCCH monitoring, in order to allow network equipment to configure a more reasonable PDCCH monitoring configuration for terminal equipment.
  • the terminal device can report to the network device whether it supports the span-level-based PDCCH monitoring capability.
  • the terminal device reports capability information R16PDCCH monitoring capability to the network device, that is, reports the parameter pdcch-Monitoring-r16.
  • the reported parameter pdcch-Monitoring-r16 belongs to feature group (FG) 11-2.
  • the network device can instruct the terminal device to monitor PDCCH based on span level by configuring the high-level parameters of a cell (such as RRC parameters) monitoringCapabilityConfig to r16monitoringcapability.
  • the terminal device also reports the supported PDCCH monitoring capabilities to the network device, that is, one or more span patterns supported by the terminal device, or one or more combinations (X, Y) supported by the terminal device.
  • the network device configures PDCCH configuration for the terminal device according to the capabilities reported by the terminal device.
  • the terminal device determines the span used to monitor the PDCCH according to the PDCCH configuration configured by the network device and the rules for determining the span pattern defined in the 3GPP communication protocol TS38.213.
  • the span pattern of the slot includes (4,3) and (2,2). Since (4,3) corresponds to (2,2) corresponding to And (4,3) corresponds to Greater than (2,2) corresponding to Therefore, the terminal device will determine (4,3) as the span pattern of the slot. That is, the terminal equipment corresponds to (4,3) and Monitor PDCCH within each span.
  • a span can contain at least one PDCCH MO.
  • each symbol within a span may contain a 1-symbol PDCCH MO.
  • the configured SS set is associated with a CORESET with a duration of 1 OFDM symbol. This requires the terminal device to perform a blind detection operation on each symbol within a span, which increases the complexity of the terminal device's blind detection.
  • every two symbols of the 14 symbols in a time slot form a span.
  • the length of each span is 2 symbols, and there are 7 spans in total (time span #1 ⁇ time span #7 in Figure 4 ).
  • each symbol in one time slot contains one PDCCH MO (#0 ⁇ #13 in Figure 4), which requires the terminal equipment to be on each symbol within one slot. All perform PDCCH blind detection operations, which increases the complexity of blind detection of terminal equipment.
  • each symbol appearing in each span may also contain 1 PDCCH MO, requiring the terminal equipment to operate in 1 span
  • Each symbol in the symbol performs a blind detection operation, and the blind detection complexity of the terminal device is also high.
  • the increase in the number of blind detections is not conducive to the terminal equipment meeting the needs of low-latency services, and will additionally increase the power consumption of the terminal equipment.
  • the time for the terminal equipment to process the physical downlink shared channel (PDSCH) starts from the symbol next to the scheduled PDCCH end symbol and is related to the subcarrier spacing and the processing capabilities of the terminal equipment defined by the communication protocol. . If the PDCCH configured by the network device and the scheduled PDSCH overlap each other. The time for the terminal equipment to process the PDSCH is also related to the number of overlapping symbols between the PDCCH and the scheduled PDSCH. For example, the processing time of the PDSCH of the terminal equipment is related to N 1 and d1,1.
  • N 1 is a value defined by a protocol related to the subcarrier spacing and the processing capability of the terminal device.
  • the processing capability of the terminal equipment is processing capability 2
  • the subcarrier spacing is 30kHz
  • N 1 is 3
  • the unit is OFDM symbol.
  • d1,1 is related to the number of overlapping symbols between PDCCH and scheduled PDSCH, especially when the number of scheduled PDSCH symbols L is relatively short, for example, L is less than or equal to 6.
  • TS38.214 For specific rules, please refer to the description in 3GPP communication protocol TS38.214.
  • the PDCCH currently configured by network equipment based on span patterns may not be able to meet the time domain requirements of low-latency services of terminal equipment.
  • Figure 5 is a schematic diagram of PDCCH configuration.
  • the duration of the span is 2 and the time domain duration of the PDCCH MO included in the span is 2, the number of symbols overlapping the PDCCH and the scheduled PDSCH is larger, resulting in a longer time for the terminal equipment to process the PDSCH. It is not conducive to terminal equipment processing low-latency services.
  • the terminal device can report the time domain length N of CORESET supported by the terminal device to the network device, so that the network device determines the PDCCH configuration based on N to try to avoid that each symbol in a span contains 1 symbol.
  • PDCCH MO reduces the complexity of blind detection of terminal equipment.
  • the terminal device can also report to the network device that the terminal device supports the number of start symbols and/or end symbols M of the PDCCH MO within a span. The network device is based on the time domain length N of CORESET reported by the terminal device and the PDCCH MO within a span. The number M of start symbols and/or end symbols is used to configure the PDCCH configuration, thereby reserving more time for the terminal equipment to process the PDSCH, which helps the terminal equipment meet the delay requirements of low-latency services.
  • the time domain length N of CORESET supported by the terminal device can be characterized by the capabilities of the terminal device.
  • the number M of start symbols and/or end symbols of PDCCH MO supported by the terminal equipment within a span can also be characterized by the capabilities of the terminal equipment.
  • two capabilities of the terminal device are newly introduced, for example, called the first capability and the second capability.
  • the first capability is used to characterize the time domain length N of the control resource set supported by the terminal device. It can also be understood that the first capability is used to constrain the sustained symbol length of CORESET configured under each span pattern.
  • the second capability is used to characterize the number of start symbols and/or end symbols of the PDCCH MO in a span under the combination (X, Y) supported by the terminal equipment.
  • the terminal device may support span-level PDCCH monitoring by default, that is, the terminal device has the capability of span-level PDCCH monitoring. It can also be considered that the first capability is weaker than the capability based on span-level PDCCH monitoring.
  • the terminal equipment needs to first support span-level PDCCH monitoring capabilities. Only when the first ability is reported. That is, the terminal device needs to report the first capability first to support or report first or simultaneously report the span-level PDCCH monitoring capability.
  • the terminal device has the second capability, it may be defaulted that the terminal device has the capability based on span-level PDCCH monitoring. In the same way, the second capability is weaker than the capability based on span-level PDCCH monitoring.
  • the capability of span-level PDCCH monitoring is characterized by a feature group (FG), such as FG 11-2.
  • FG feature group
  • the first capability and the second capability can also be characterized by a characteristic group.
  • the first ability can be represented by FG 11-2x
  • the second ability can be represented by FG 11-2y. That is, FG 11-2x represents the first ability
  • FG 11-2y represents the second ability. It should be noted that the embodiments of this application do not limit the specific names of the first capability and the second capability.
  • the method may be performed by two communication devices, such as a first device and a second device.
  • the first device may be a network device or a communication device capable of supporting the network device to implement the functions required by the method, or the first device may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method (for example, chip system).
  • the second device may be a network device or a communication device that can support the network device to implement the functions required by the method, or the second device may be a terminal device or be able to support the terminal device to implement the functions required by the method. communication devices (such as chip systems).
  • the first device is a network device and the second device is a terminal device, or the first device is a network device and the second device is capable of supporting the terminal device to implement the method.
  • Methods require functional communication devices, etc.
  • the network device is, for example, a base station.
  • the method is applied to the network architecture shown in Figure 1 and the method is executed by the network device and the terminal device.
  • the network device may be a network device in the network architecture shown in FIG. 1
  • the terminal device may be a terminal device in the network architecture shown in FIG. 1 .
  • the embodiments of this application only take execution through network devices and terminal devices as an example, and are not limited to this scenario.
  • the time unit includes at least one continuous time domain symbol.
  • a time unit is a span.
  • taking the control channel as PDCCH as an example, the embodiment of this application does not limit the specific type of the control channel.
  • Figure 6 is a schematic flow chart of a communication method provided by an embodiment of the present application.
  • the terminal device sends first capability information to the network device.
  • the network device receives the first capability information from the terminal device.
  • the first capability information may be used to indicate the time domain length N of CORESET supported by the terminal device. It can also be considered that the first capability information indicates the CORESET configuration of N symbols. Among them, N can be a value, that is, the terminal device only supports one time domain length of CORESET. N can also be a set, that is, the terminal device supports multiple time domain lengths of CORESET. When N is a set, the time domain length of CORESET that can be indicated to be supported by the terminal device can be any element in the set.
  • the first capability information may include parameters, such as N-symbol CORESET configured to indicate the time domain length N of CORESET supported by the terminal device, that is, the terminal device may indicate to the network device the third CORESET that the terminal device has through the indication information carrying the parameter N-symbol CORESET.
  • N-symbol CORESET configured to indicate the time domain length N of CORESET supported by the terminal device, that is, the terminal device may indicate to the network device the third CORESET that the terminal device has through the indication information carrying the parameter N-symbol CORESET.
  • the longest time domain length of CORESET supported by the default terminal device is less than or equal to Y.
  • each symbol in a span may include a PDCCH MO with a duration of 1 symbol, thereby increasing the complexity of blind detection by the terminal device.
  • the embodiment of the present application clearly indicates the time domain length of CORESET that the terminal device can support through the first capability information, for example, a certain value N smaller than Y. This enables the network device to configure a more reasonable PDCCH configuration according to the first capability information, so as to reduce the complexity of blind detection of the terminal device.
  • N may be an element of a set (for example, called the first set) consisting of different time domain lengths of CORESET supported by the terminal device.
  • the first set can be recorded as ⁇ Y1 ⁇ , ⁇ Y2 ⁇ , ⁇ Y1, Y2,...,Y ⁇ , ⁇ Y1 or Y2 ⁇ ,..., ⁇ , where Y1 and Y2 are both integers less than or equal to Y, Y1 is smaller than Y2.
  • the terminal device may support a time domain length of CORESET. For example, if the terminal device has weak capabilities, N can be Y1; if the terminal device has strong capabilities, N can be Y.
  • the terminal device can support multiple time domain lengths of CORESET.
  • N can be ⁇ Y1, Y2,...,Y ⁇ .
  • the terminal device only supports one time domain length among multiple time domain lengths of CORESET, and N can be ⁇ Y1 or Y2 ⁇ . That is, N is ⁇ Y1 or Y2 ⁇ , which means that for a span pattern, CORESET with a time domain length of Y1 or Y2 is supported. Take the span pattern as (2,2) as an example.
  • the first set may be ⁇ 1 ⁇ , ⁇ 2 ⁇ , ⁇ 1,2 ⁇ , ⁇ 1 or 2 ⁇ , and N is an element of the first set. It should be noted that the above implementation form of the first set is only an example, and the embodiment of the present application does not limit the number of elements included in the first set.
  • the first set may be ⁇ 1 ⁇ , ⁇ 2 ⁇ , ⁇ 1,2 ⁇ .
  • the terminal device sends the first capability information to the network device, that is, the terminal device has the first capability.
  • the terminal device has the capability of span-level PDCCH monitoring or the terminal device needs to first support the span-level PDCCH monitoring capability.
  • the terminal device needs to support or report first or report at the same time the span-level PDCCH monitoring capability FG11-2. If the terminal device not only sends the first capability information to the network device, but also reports the parameter pdcch-Monitoring-r16 to the network device, that is, reports to the network device that the terminal device has the capability of span-level PDCCH monitoring, then the network device based on the first capability information
  • the terminal device sends PDCCH configuration.
  • the scope of the first capability may be for terminal equipment, cell, frequency band, carrier or frequency band combination (band combination, BC). It can also be considered that the first capability information can be at the terminal equipment level, or at the cell level, frequency band level, carrier level or frequency band combination level.
  • the granularity of the first capability information is terminal equipment level, cell level, frequency band level, carrier level or frequency band combination level.
  • the granularity of the first capability information can be referred to as a feature set (FS).
  • the FS may be at FS level, cell level, frequency band level, carrier level or frequency band combination level, etc.
  • the first capability information sent by the terminal device may indicate the time domain length N of CORESET supported by the terminal device on all BWPs of the first cell. That is, the first capability is applied to the first cell.
  • the time domain length of CORESET supported by the terminal equipment in a cell other than the first cell may not be N.
  • the first capability information sent by the terminal device may indicate the time domain length N of CORESET supported by the terminal device on the first frequency band. That is, the first capability applies to the first frequency band.
  • the first capability information sent by the terminal device may indicate the time domain length N of CORESET supported by the terminal device on the first frequency band combination. That is, the first capability applies to the first frequency band combination.
  • the first capability information sent by the terminal device may indicate the time domain length N of CORESET supported by the terminal device on the first carrier. That is, the first capability applies to one carrier.
  • the first capability information sent by the terminal device can indicate that the supported time domain length N of CORESET can be applied to all frequency band combinations, frequency bands, all cells, carriers within the frequency band, etc. .
  • the first capability information may be that the terminal device supports a certain combination (X, Y) among all combinations (X, Y).
  • the terminal device supports the combination (2,2), N is 1, and the first capability information indicates that only CORESET time domain symbol length equal to 1 is supported within a span of (2,2), which can also be understood as that for (2,2) ) the number of start symbols and/or end symbols of PDCCH MOs in a span is 1, or all PDCCH MOs or all candidate PDCCHs included in a span are on the same OFDM symbol.
  • a parameter may be introduced for each combination (X, Y), which may indicate the time domain length N of CORESET supported by the terminal device.
  • the first capability information may include the parameter "PDCCH-MonitoringOccasionsWithRestrictionOneSymbol-r16", that is, one combination (X, Y) of at least one combination (X, Y) corresponds to one N.
  • the parameter "PDCCH-MonitoringOccasionsWithRestrictionOneSymbol-r16” that is, one combination (X, Y) of at least one combination (X, Y) corresponds to one N.
  • period7span3 represents the span pattern (7,3)
  • period4span3 represents the span pattern (4,3)
  • period2span2 represents the span pattern (2,2).
  • the first capability information may also be for the terminal device supporting all (X, Y) in the combination (X, Y).
  • N is 1, and the first capability information indicates that for the combinations (2,2), (4,3) and (7,3) Only CORESET time domain symbol length equal to 1 is supported within a span.
  • the number of symbols and/or end symbols is 1, or all PDCCH MOs or all candidate PDCCHs included in a span are on the same OFDM symbol.
  • a parameter may be introduced for all combinations (X, Y), which may indicate the time domain length N of CORESET supported by the terminal device for all combinations (X, Y). . That is, at least one combination (X, Y) corresponds to an N.
  • the network device determines the control channel configuration information according to the first capability information, and sends the control channel configuration information to the terminal device.
  • the terminal device receives the control channel configuration information from the network device.
  • the control channel may be PDCCH (this is used as an example below).
  • the network device may determine PDCCH configuration information according to the first capability information, and the PDCCH configuration information may be used by the terminal device to determine at least one time unit (ie, at least one span) occupied by the PDCCH.
  • the PDCCH configuration information may include search space set configuration information, CORESET configuration information, etc., and may be used by the terminal device to determine the combination (X, Y). Specifically, the terminal equipment can determine the combination (X, Y) according to the PDCCH configuration information and the rules for determining the span pattern specified in the 3GPP communication standard protocol TS38.213.
  • PDCCH configuration information can be carried in RRC signaling, which can be an RRC configuration message or an RRC reconfiguration message.
  • the terminal device reports to the network device the time domain length N of CORESET supported by the terminal device.
  • the network device can only configure the CORESET duration symbol to be N.
  • each search space set is only associated with CORESETs with a duration of N symbols.
  • the PDCCH configuration configured by the network equipment according to the first capability information may have the following situations.
  • N 1
  • the starting symbols of two adjacent PDCCH MOs are separated by P time domain symbols, where P is an integer greater than or equal to 1.
  • P is an integer greater than or equal to 1.
  • two adjacent PDCCH MOs with overlapping time domains on the same symbol do not include two completely overlapping PDCCH MOs.
  • complete overlap can be understood as the starting symbols of the two PDCCH MOs are the same symbol, and the ending symbols of the two PDCCH MOs are also the same symbol.
  • the embodiment of the present application provides a new rule for determining the span pattern, and it can also be considered that it provides a constraint for determining the span pattern.
  • N 1, for combination (2,2), it is stipulated that there is at least 1 symbol interval between the starting symbols of two adjacent PDCCH MOs, and the span pattern of (2,1) can be achieved.
  • the span pattern of (4,3) the span pattern of (4,1) can be implemented.
  • the span pattern of (7,1) the span pattern of (7,1) can be implemented.
  • Figure 7 is a schematic diagram of PDCCH configuration.
  • “#1 ⁇ #7” in Figure 7 refers to span#1 ⁇ span#7, which is 7 time spans.
  • the minimum time domain symbol interval between the starting symbols of two adjacent PDCCH MOs is 2.
  • the interval between two adjacent PDCCH MOs can be configured to be 1 symbol, thereby achieving combination (2,1).
  • the configured SS set is associated with CORESET with a duration of 1 symbol, not every symbol in 1 time slot (or span) has 1 PDCCH MO, which can reduce the complexity of blind detection by the terminal equipment.
  • Spend is a schematic diagram of PDCCH configuration.
  • the duration of the PDCCH MO is 1 symbol.
  • the PDSCH and the scheduled PDCCH overlap with fewer symbols, thereby reserving more symbols for the terminal equipment. processing time.
  • the starting time of processing the PDCCH starts from the second symbol.
  • the time to start processing the PDCCH is earlier. Therefore, compared with Figure 5, the starting time of processing PDSCH in Figure 7 is also earlier.
  • the processing time of the PDSCH is shorter than the processing time of the PDSCH in Figure 5, so that the terminal equipment can process the PDSCH as quickly as possible. It can be seen that the configuration shown in Figure 7 reserves more processing time for the terminal device, which is helpful for the terminal device to meet the needs of low-latency services.
  • Figure 8 is a schematic diagram of PDCCH configuration.
  • “#1 ⁇ #3” in Figure 8 refers to span#1 ⁇ span#3, which are 3 time spans.
  • the minimum time domain symbol interval between the starting symbols of two adjacent PDCCH MOs is 4.
  • the start symbols of two adjacent PDCCH MOs can be configured to be separated by at least 1 symbol, thereby achieving combination (4,1).
  • the configured SS set is associated with CORESET with a duration of 1 symbol
  • not every symbol in 1 time slot (or span) has 1 PDCCH MO, which can reduce the complexity of blind detection by the terminal equipment.
  • the duration of PDCCH MO is 1 symbol, and the overlapping symbols of PDSCH and scheduled PDCCH are fewer, which can reserve more processing time for terminal equipment and help terminal equipment meet the needs of low-latency services.
  • Figure 9 is a schematic diagram of PDCCH configuration.
  • “#1 ⁇ #2” in Figure 9 refers to span#1 ⁇ span#2, which are 2 time spans.
  • the minimum time domain symbol interval between the starting symbols of two adjacent PDCCH MOs is 7.
  • the start symbols of two adjacent PDCCH MOs can be configured to be separated by at least 1 symbol, thereby achieving combination (7,1).
  • the configured SS set is associated with CORESET with a duration of 1 symbol
  • not every symbol in 1 time slot (or span) has 1 PDCCH MO, which can reduce the complexity of blind detection by the terminal equipment.
  • the duration of PDCCH MO is 1 symbol, and there are fewer overlapping symbols between PDSCH and scheduled PDCCH, which can reserve more processing time for terminal equipment and help terminal equipment meet the needs of low-latency services.
  • two adjacent PDCCH MOs do not include two completely overlapping PDCCH MOs, nor do they include partially overlapping PDCCH MOs.
  • Two completely overlapping PDCCH MOs refer to the same starting symbols of the two PDCCH MOs, and the same ending symbols of the two PDCCH MOs.
  • Two partially overlapping PDCCH MOs include two PDCCH MOs with the same starting symbols but different lengths, and two PDCCH MOs with the same ending symbols but different lengths. Among them, two PDCCH MOs that completely overlap or partially overlap are located in the same span.
  • the second situation can be understood as providing a new rule for determining the span pattern, or providing a constraint for determining the span pattern.
  • the span pattern of (7,2) can be implemented.
  • Figure 10 is a schematic diagram of PDCCH configuration.
  • the sub-symbol sets of two adjacent PDCCH MOs are not adjacent.
  • the end symbol of the previous PDCCH MO and the start symbol of the next PDCCH MO in the two adjacent PDCCH MOs are not adjacent. separated by at least 1 symbol.
  • the starting symbol of PDCCH MO#1 and the starting symbol of PDCCH MO#2 in Figure 10 are separated by 2 symbols. Since a PDCCH MO does not span the boundary of a time slot, the starting symbols of PDCCH MO#4 and PDCCH#1 are the same, that is, the interval between the starting symbols of PDCCH MO#4 and the starting symbols of PDCCH#1 is 0 symbol. It can be seen that the combination (4,2) can be realized in Figure 10.
  • Figure 11 is a schematic diagram of PDCCH configuration.
  • the sub-symbol sets of two adjacent PDCCH MOs are not adjacent. It can also be considered that the end symbol of the previous PDCCH MO and the start symbol of the next PDCCH MO in the two adjacent PDCCH MOs are not adjacent. separated by at least 1 symbol.
  • the starting symbol of PDCCH MO#1 and the starting symbol of PDCCH MO#2 in Figure 11 are separated by 7 symbols. Since a PDCCH MO does not span the boundary of a time slot, as shown in Figure 11, the starting symbols of PDCCH MO#4 and PDCCH#1 are the same, and the starting symbols of PDCCH MO#2 and PDCCH#3 are the same. It can be seen that the combination (7,2) can be realized in Figure 11.
  • the network device will not include both a CORESET with a time domain length of 1 and a CORESET with a time domain length of 2 in the PDCCH configuration.
  • the network device will only select a CORESET with a time domain length for PDCCH configuration.
  • the network device can only configure the CORESET persistence symbol to be 2.
  • the network device can only configure the CORESET persistence symbol to be 2.
  • the above example takes the terminal device reporting the first capability information to the network device and the network device configuring the PDCCH configuration according to the first capability information to avoid that each symbol in a span includes one PDCCH MO. This will not increase the blind detection complexity of the terminal device, and can reserve more processing time for the terminal device, so that the terminal device can meet the needs of low-latency services.
  • the terminal device can also report the second capability to the network device, and the network device configures the PDCCH configuration based on the first capability information and the second capability supported by the terminal device.
  • This scheme can also avoid that each symbol within a span includes 1 PDCCH MO.
  • it can also enable the terminal equipment to process PDCCH uniformly within a span, further reducing the complexity of the terminal equipment.
  • reporting the second capability by the terminal device is not mandatory, so the following S603 is illustrated with a dotted line in Figure 6 , indicating that S603 is an optional step and is not a step that must be executed. The solution is introduced below.
  • the terminal device sends the second capability information to the network device, and accordingly, the network device receives the second capability information from the terminal device.
  • the second capability information may be used to indicate that the terminal equipment supports the number M of start symbols or end symbols of the PDCCH MO within a span.
  • M can be a value or a set.
  • M ⁇ 1, an integer greater than 1 ⁇ , indicating that the terminal equipment supports the number of start symbols or end symbols of PDCCH MO within a span, which can be 1 or multiple.
  • the terminal device sends the second capability information to the network device, that is, the terminal device has the second capability.
  • the terminal device has the capability of span-level PDCCH monitoring or the terminal device needs to first support the span-level PDCCH monitoring capability.
  • the terminal equipment needs to support or report first or simultaneously report the span-level PDCCH monitoring capability FG11-2. If the terminal device not only sends the second capability information to the network device, but also reports the parameter pdcch-Monitoring-r16 to the network device, that is, reports to the network device that the terminal device has the capability of span-level PDCCH monitoring, then the network device gives priority to based on the second capability information. Send the PDCCH configuration to the terminal device.
  • the scope of the second capability may be directed to terminal equipment, cells, frequency bands, carriers, or combinations of frequency bands. It can also be considered that the second capability information can be at the terminal equipment level, or at the cell level, frequency band level, carrier level or frequency band combination level. In other words, the granularity of the second capability information is terminal equipment level, cell level, frequency band level, carrier level or frequency band combination level. For convenience of description, the granularity of the second capability information can be referred to as a feature set (FS).
  • the FS may be at FS level, cell level, frequency band level, carrier level or frequency band combination level, etc.
  • the second capability information sent by the terminal device may indicate the starting symbols and/or ending symbols of the PDCCH MO within a span supported by the terminal device on all BWPs of the first cell.
  • the number of M That is, the first capability is applied to the first cell.
  • the number of starting symbols and/or ending symbols of the PDCCH MO in a span supported by the terminal equipment in a cell other than the first cell may not be M.
  • the second capability information sent by the terminal device may indicate the number of start symbols and/or end symbols of the PDCCH MO within a span supported by the terminal device on the first frequency band. . That is, the second capability is applied to the first frequency band.
  • the second capability information sent by the terminal equipment may indicate the start symbol and/or end symbol of the PDCCH MO within a span supported by the terminal equipment on the first frequency band combination. number. That is, the second capability applies to the first frequency band combination. The number of starting symbols and/or ending symbols of PDCCH MO in a span supported by the terminal equipment on all cells or all carriers or all component carriers in each frequency band included in the first frequency band combination.
  • the second capability information sent by the terminal device may indicate the number of starting symbols and/or ending symbols of the PDCCH MO within a span supported by the terminal device on the first carrier. . That is, the second capability applies to one carrier.
  • the second capability information sent by the terminal equipment can indicate that the number of starting symbols and/or ending symbols of the PDCCH MO within a span supported can be applied to all frequency band combinations. , frequency band, all cells and carriers within the frequency band, etc.
  • the second capability information may be a certain one (X, Y) among all combinations (X, Y) supported by the terminal device.
  • the terminal equipment supports the combination (2,2)
  • M is 1
  • the second capability information indicates that the number of start symbols and/or end symbols of the PDCCH MO in a span of (2,2) is 1, or, All PDCCH MOs or all candidate PDCCHs included in a span are on the same OFDM symbol.
  • a parameter can be introduced for each combination (X, Y), which can indicate the number of start symbols or end symbols of the PDCCH MO within a span supported by the terminal equipment. That is, each combination in at least one combination (X, Y) corresponds to one M.
  • the second capability information may include the parameter "PDCCH-MonitoringOccasionsWithDifferentEndingSymbol-r16", whose implementation form is as follows:
  • the above example takes the existence of three span patterns (2,2), (4,3) and (7,3).
  • period7span3 represents the span pattern (7,3)
  • period4span3 represents the span pattern (4,3)
  • period2span2 represents the span pattern (2,2).
  • the network device is configured in 1 Each span can be configured with PDCCH MOs of different lengths. The starting symbols of different PDCCH MOs can be different, but the ending symbols are the same.
  • Figure 12 is a schematic diagram of a configuration of PDCCH.
  • Figure 12 takes the span pattern (4,3) as an example.
  • time span #1 is configured with two PDCCH MOs (#1 and #2 respectively).
  • the end symbols of these two PDCCH MOs are the same, which is symbol 1.
  • Time span #2 is configured with 2 PDCCH MOs (#1 and #2 respectively).
  • the end symbols of these two PDCCH MOs are the same, which is symbol 5.
  • Time span #3 is configured with 1 PDCCH (i.e. #1), and the end symbol of this PDCCH MO is symbol 9.
  • time span #1 is configured with 3 PDCCH MOs (#1, #2 and #3 respectively), among which, the end symbol of PDCCH MO#1 is symbol 0, PDCCH MO#2 and PDCCH MO# The ending symbol of 3 is symbol 1.
  • Time span #2 is configured with 3 PDCCH MOs (#1, #2 and #3 respectively). Among them, the end symbol of PDCCH MO#1 is symbol 4, the end symbol of PDCCH MO#2 is symbol 5, and the end symbol of PDCCH MO# is symbol 5. The ending symbol of 3 is the symbol 5.
  • Time span #3 is configured with 1 PDCCH (i.e. #1), and the end symbol of this PDCCH MO is symbol 8.
  • the second capability information may also be for the terminal device supporting all (X, Y) in the combination (X, Y).
  • M is 1, and the second capability information indicates the starting symbol of the PDCCH MO within a span of (2,2) and/or The number of end symbols is 1, or all PDCCH MOs or all candidate PDCCHs included in a span are on the same OFDM symbol.
  • a parameter can be introduced for all combinations (X, Y), which can indicate the number M of start symbols or end symbols of PDCCH MO in a span supported by the terminal equipment for all combinations (X, Y). . That is, at least one combination (X, Y) corresponds to an M.
  • the second capability information includes "PDCCH-MonitoringOccasionsWithDifferentEndingSymbol-r16".
  • control channel configuration configured by the network device according to the second capability information may have the following situations.
  • the network device configures the PDCCH configuration according to the CORESET with a time domain length of 1 symbol and the end symbol of the PDCCH MO in a span is 1, which can be implemented as (2,1) span pattern.
  • the span pattern (4,3) it can be realized as the span pattern of (4,1); for the span pattern (7,3), it can be realized as the span pattern of (7,1).
  • Figure 13 is a schematic diagram of a configuration of PDCCH.
  • “#1 ⁇ #7” in Figure 13 refers to span#1 ⁇ span#7, which is 7 time spans.
  • the configured SS set association duration is CORESET of 1 symbol, which can be configured according to the number of end symbols of different PDCCH MOs being 1.
  • the time domain length of a PDCCH MO is 1 symbol, as shown in Figure 13, and the combination (2,1) can be achieved.
  • the network device configures the PDCCH configuration according to the CORESET with a time domain length of 1 symbol and the end symbols of the PDCCH MO within a span of 2, which can be implemented as (4,2 ) span pattern.
  • the span pattern of (7,2) can be implemented.
  • Figure 14 is a schematic diagram of a configuration of PDCCH.
  • “#1 ⁇ #3” in Figure 14 refers to span#1 ⁇ span#3, which are 3 time spans.
  • Network equipment can configure PDCCH MOs of different lengths in one span. As shown in Figure 14, the time domain length of PDCCH MO#4 in span#2 is 1 symbol, and the time domain length of PDCCH MO#2 is 1 symbol. , as shown in Figure 14, the combination (4,2) can be achieved.
  • the network device configures the PDCCH configuration according to the CORESET with a time domain length of 2 symbols and the end symbol of the PDCCH MO within a span is 1, which can be implemented as (4,2 ) span pattern.
  • the span pattern of (7,2) can be implemented.
  • Figure 15 is a schematic diagram of a configuration of PDCCH.
  • “#1 ⁇ #3” in Figure 15 refers to span#1 ⁇ span#3, which are 3 time spans.
  • the combination (4,2) can be achieved.
  • the network device configures the PDCCH configuration according to the CORESET with a time domain length of 2 symbols and the end symbol of the PDCCH MO within a span is 1, which can be implemented as (4,2 ) span pattern.
  • the span pattern of (7,2) can be implemented.
  • Figure 16 is a schematic diagram of a configuration of PDCCH.
  • “#1 ⁇ #2” in Figure 16 refers to span#1 ⁇ span#2, which are 2 time spans.
  • the combination (7,2) can be achieved.
  • the above example takes the terminal device reporting the first capability information and the second capability information to the network device, and the network device configures the PDCCH configuration according to the first capability information, so as to avoid that each symbol in a span includes one PDCCH MO. This will not increase the blind detection complexity of the terminal device, and can reserve more processing time for the terminal device, so that the terminal device can meet the needs of low-latency services.
  • network equipment can configure PDCCH MOs of different lengths in one span.
  • the start symbols of different PDCCH MOs can be different, but the end symbols are the same, so that the terminal equipment can uniformly process PDCCH within a span and reduce the complexity of the terminal equipment.
  • the solution is introduced below.
  • the first time span includes MO1 and MO3, that is, 2 PDCCH MOs , MO1 and MO3 have the same ending symbol but different lengths.
  • the second time span includes MO2 and MO4, which have the same end symbol and the same length.
  • the first time span includes MO1 and MO3, that is, 2 PDCCH MO, MO1 and MO3
  • the ending symbols are the same but the lengths are different.
  • the second time span includes MO2 and MO4, which have the same end symbol and the same length.
  • the first time span includes MO1 and MO3, that is, 2 PDCCH MOs, MO1 and MO4
  • the ending symbols are the same but the lengths are different.
  • the second time span includes MO2 and MO3.
  • MO2 and MO3 have the same end symbol and the same length.
  • the terminal device reports the second capability information to the network device, and the network device configures the PDCCH configuration according to the second capability information as an example to avoid that each symbol in a span includes one PDCCH MO. This will not increase the blind detection complexity of the terminal device, and can reserve more processing time for the terminal device, so that the terminal device can meet the needs of low-latency services.
  • the network device sends the control channel in at least one time unit, and accordingly, the terminal device receives the control channel from the network device in at least one time unit.
  • the terminal device can determine the span pattern, that is, at least one time unit, based on the control channel configuration information sent by the network device and the rules for determining the span pattern. Thereby the terminal device can receive the control channel at least one time.
  • the methods provided by the embodiments of the present application are introduced from the perspective of interaction between the terminal device and the network device.
  • the first device and the second device may include a hardware structure and/or a software module to implement the above-mentioned functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • a hardware structure e.g., a hardware structure plus a software module.
  • Each function Whether one of the above functions is performed as a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.
  • FIG. 18 is a schematic block diagram of a communication device 1800 provided by an embodiment of the present application.
  • the communication device 1800 may include a processing module 1810 and a transceiver module 1820.
  • a storage unit may also be included, which may be used to store instructions (code or programs) and/or data.
  • the processing module 1810 and the transceiver module 1820 can be coupled with the storage unit.
  • the processing module 1810 can read the instructions (code or program) and/or data in the storage unit to implement the corresponding method.
  • Each of the above modules can be set up independently or partially or fully integrated.
  • the communication device 1800 can correspondingly implement the behaviors and functions of the terminal device in the above method embodiments.
  • the communication device 1800 can be a terminal device or a component (such as a chip or circuit) used in the terminal device. It may also be a chip or a chipset in the terminal device or a part of the chip used to perform related method functions.
  • the transceiver module 1820 is configured to send first capability information to the network device, receive control channel configuration information from the network device, and receive the control channel within at least one time unit according to the control channel configuration information.
  • the first capability information is used to indicate the time domain length N of CORESET supported by the communication device 1800.
  • the control channel configuration information is used to determine at least one time unit occupied by the control channel, and the length of each time unit is N.
  • the time unit is span, and the span includes Z consecutive time domain symbols, and Z is less than the number of symbols included in one time slot.
  • the first capability information is used to indicate the time domain length N of CORESET supported by the communication device 1800, including: the first capability information is used to indicate the time domain length N of the CORESET supported by the communication device 1800 on the first frequency band. Domain length N; or, the A capability information is used to indicate the time domain length N of CORESET supported by the communication device 1800 on the first cell; or, the first capability information is used to indicate the time domain length N of CORESET supported by the communication device 1800 in the first frequency band combination, Wherein, the first frequency band combination includes at least two frequency bands; or, the first capability information is used to indicate the time domain length N of CORESET supported by the communication device 1800 on the first carrier.
  • the first capability information is used to indicate the time domain length N of CORESET supported by the communication device 1800, including: the first capability information indicates whether at least one combination (X, Y) supports N, where, A combination (X, Y) corresponds to an N, or at least one combination (X, Y) corresponds to an N.
  • the transceiver module 1820 is also configured to send second capability information to the network device.
  • the second capability information is used to instruct the communication device 1800 to support the start symbol and/or control channel monitoring opportunity within a time unit. Or the number M of end symbols, where M is an integer greater than or equal to 1.
  • control channel configuration information is used to determine at least one time unit occupied by the control channel, including: the control channel configuration information is used to determine the combination (X, Y), where X is two adjacent time units The minimum time domain symbol interval between the starting symbols, Y is the maximum length of a time unit.
  • the second capability information is used to indicate that the communication device 1800 supports the number M of start symbols or end symbols for controlling channel monitoring opportunities within a time unit, including: the first capability information indicates at least one Whether the combination (X, Y) supports M, where one combination (X, Y) corresponds to an M, or at least one combination (X, Y) corresponds to an M.
  • the transceiver module 1820 is configured to send the second capability information to the network device, receive control channel configuration information from the network device, and receive the control channel within at least one time unit according to the control channel configuration information.
  • the processing module 1810 is used to determine second capability information.
  • the second capability information is used to indicate that the terminal device supports the number M of start symbols or end symbols for controlling channel monitoring opportunities within a time unit.
  • the control channel configuration information is used to determine at least one time unit occupied by the control channel.
  • the second capability information is used to indicate that the communication device 1800 supports the number M of start symbols or end symbols for controlling channel monitoring opportunities within a time unit, including: the first capability information indicates at least one Whether the combination (X, Y) supports M, where one combination (X, Y) corresponds to an M, or at least one combination (X, Y) corresponds to an M.
  • the communication device 1800 can correspondingly implement the behaviors and functions of the network device in the above method embodiments.
  • the communication device 1800 can be a network device or a component (such as a chip or circuit) used in the network device. It may also be a chip or a chipset in a network device or a part of the chip used to perform related method functions.
  • the transceiving module 1820 is configured to receive the first capability information from the terminal device, send the control channel configuration information to the terminal device, and send the control channel within at least one time unit.
  • the first capability information is used to indicate the time domain length N of CORESET supported by the terminal device.
  • the control information configuration information is used to determine at least one time unit occupied by the control channel, and the length of each time unit is N.
  • the time unit includes Z consecutive time domain symbols, and Z is smaller than the number of symbols included in one time slot.
  • control channel configuration information is used to determine at least one time unit occupied by the control channel, including: the control channel configuration information is used to determine the combination (X, Y), where X is two adjacent time units The minimum time domain symbol interval between the starting symbols, Y is the maximum length of a time unit.
  • the combination (X, Y) is (2,2), (4,3) or (7,3), and the starting symbols of the two adjacent control channel monitoring opportunities are spaced M time domain symbols, M is an integer greater than or equal to 1, and one time unit includes at least one control channel monitoring opportunity.
  • the first capability information is used to indicate the time domain length N of CORESET supported by the terminal device, including: the first capability information is used to indicate the time domain length N of CORESET supported by the terminal device on the first frequency band. N; or the first capability information is used to indicate the time domain length N of CORESET supported by the terminal equipment on the first cell; or the first capability information is used to indicate the time domain length N of CORESET supported by the terminal equipment in the first frequency band combination. Length N, where the first frequency band combination includes at least two frequency bands; or the first capability information is used to indicate the time domain length N of CORESET supported by the terminal device on the first carrier.
  • the first capability information is used to indicate the time domain length N of CORESET supported by the terminal device, including: the first capability information indicates whether at least one combination (X, Y) supports N, where a A combination (X,Y) corresponds to an N, or, to One less combination (X,Y) corresponds to one N.
  • the transceiver module 1820 is also configured to receive second capability information from the terminal device.
  • the second capability information is used to indicate that the terminal device supports the start symbol or end of the control channel monitoring opportunity within a time unit.
  • the number of symbols, M is an integer greater than or equal to 1.
  • control channel configuration information is used to determine at least one time unit occupied by the control channel, including: the control channel configuration information is used to determine the combination (X, Y), where X is two adjacent time units The minimum time domain symbol interval between the starting symbols, Y is the maximum length of a time unit.
  • the second capability information is used to indicate that the terminal device supports the number M of start symbols or end symbols for controlling channel monitoring opportunities within a time unit, including: the second capability information indicates at least one combination Whether (X,Y) supports the M, wherein one combination (X,Y) corresponds to one M, or at least one combination (X,Y) corresponds to one M.
  • the transceiving module 1820 is also used to receive third capability information from the terminal device.
  • the processing module 1810 is configured to determine control channel configuration information according to the first capability information and/or the second capability information.
  • the third capability information is used to indicate that the terminal device supports control channel monitoring based on time unit level.
  • the transceiving module 1820 is configured to receive the second capability information from the terminal device, send control channel configuration information to the terminal device, and send the control channel within at least one time unit according to the control channel configuration information.
  • the processing module 1810 is used to determine the control channel.
  • the second capability information is used to indicate that the terminal device supports the number M of start symbols or end symbols for controlling channel monitoring opportunities within a time unit.
  • the control channel configuration information is used to determine at least one time unit occupied by the control channel.
  • the second capability information is used to indicate that the terminal device supports the number M of start symbols or end symbols for controlling channel monitoring opportunities within a time unit, including: the second capability information indicates at least one combination Whether (X,Y) supports the M, wherein one combination (X,Y) corresponds to one M, or at least one combination (X,Y) corresponds to one M.
  • processing module 1810 in the embodiment of the present application can be implemented by a processor or processor-related circuit components
  • transceiver module 1820 can be implemented by a transceiver or transceiver-related circuit components or a communication interface.
  • FIG 19 is a schematic block diagram of a communication device 1900 provided by an embodiment of the present application.
  • the communication device 1900 may be a terminal device and can implement the functions of the terminal device in the method provided by the embodiments of the present application.
  • the communication device 1900 may also be a device that can support the terminal device to implement the corresponding functions in the method provided by the embodiment of the present application, wherein the communication device 1900 may be a chip system.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the communication device 1900 may also be a network device and can implement the functions of the network device in the method provided by the embodiment of the present application.
  • the communication device 1900 may also be a device that can support network equipment to implement corresponding functions in the methods provided in the embodiments of the present application, wherein the communication device 1900 may be a chip system.
  • the chip system may be composed of chips, or may include chips and other discrete devices. For specific functions, please refer to the description in the above method embodiment.
  • the communication device 1900 includes one or more processors 1901, which can be used to implement or support the communication device 1900 to implement the functions of the terminal device in the method provided by the embodiment of the present application. For details, please refer to the detailed description in the method example and will not be repeated here.
  • One or more processors 1901 may also be used to implement or support the communication device 1900 in implementing the functions of the network device in the method provided by the embodiment of the present application. For details, please refer to the detailed description in the method example and will not be repeated here.
  • the processor 1901 can also be called a processing unit or processing module, and can implement certain control functions.
  • the processor 1901 may be a general-purpose processor or a special-purpose processor, or the like.
  • central processing unit For example, include: central processing unit, application processor, modem processor, graphics processor, image signal processor, digital signal processor, video codec processor, controller, memory, and/or neural network processor wait.
  • the central processing unit may be used to control the communication device 1900, execute software programs and/or process data.
  • Different processors may be independent devices, or may be integrated in one or more processors, for example, integrated on one or more application specific integrated circuits.
  • the communication device 1900 includes one or more memories 1902 to store instructions 1904, which can be executed on the processor 1901, so that the communication device 1900 executes the method described in the above method embodiment.
  • the memory 1902 and the processor 1901 may be provided separately or integrated together, or the memory 1902 and the processor 1901 may be considered coupled.
  • the coupling in the embodiment of this application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information interaction between devices, units or modules.
  • Processor 1901 may cooperate with memory 1902. At least one of the at least one memory may be included in the processor. It should be noted that the memory 1902 is not necessary, so it is illustrated with a dotted line in FIG. 19 .
  • the memory 1902 may also store data.
  • the processor and memory can be provided separately or integrated together.
  • the memory 1902 may be a non-volatile memory, such as a hard disk (hard, disk, drive, HDD). Or solid-state drive (SSD), etc., or volatile memory (volatile, memory), such as random-access memory (random-access, memory, RAM).
  • Memory is, but is not limited to, any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
  • the memory in the embodiment of the present application can also be a circuit or any other device capable of realizing a storage function, used to store program instructions and/or data.
  • the communication device 1900 may include instructions 1903 (sometimes also referred to as codes or programs), and the instructions 1903 may be executed on the processor, causing the communication device 1900 to perform the methods described in the above embodiments.
  • Data may be stored in processor 1901.
  • the communication device 1900 may also include a transceiver 1905 and an antenna 1906.
  • the transceiver 1905 may be called a transceiver unit, transceiver module, transceiver, transceiver circuit, transceiver, input/output interface, etc., and is used to realize the transceiver function of the communication device 1900 through the antenna 1906.
  • the processor 1901 and transceiver 1905 described in this application can be implemented in integrated circuits (ICs), analog ICs, radio frequency identification (RFID), mixed signal ICs, ASICs, printed circuit boards (printed circuit boards) board, PCB), or electronic equipment, etc.
  • the communication device that implements the communication described in this article can be an independent device (for example, an independent integrated circuit, a mobile phone, etc.), or it can be a part of a larger device (for example, a module that can be embedded in other devices).
  • ICs integrated circuits
  • RFID radio frequency identification
  • ASICs integrated circuits
  • PCB printed circuit boards
  • the communication device that implements the communication described in this article can be an independent device (for example, an independent integrated circuit, a mobile phone, etc.), or it can be a part of a larger device (for example, a module that can be embedded in other devices).
  • the description of terminal equipment and network equipment will not be repeated here.
  • the communication device 1900 may also include one or more of the following components: a wireless communication module, an audio module, an external memory interface, an internal memory, a universal serial bus (USB) interface, a power management module, and an antenna. Speakers, microphones, input and output modules, sensor modules, motors, cameras, or displays, etc. It can be understood that in some embodiments, the communication device 1900 may include more or fewer components, or some components may be integrated, or some components may be separated. These components may be implemented in hardware, software, or a combination of software and hardware.
  • the communication device in the above embodiments may be a terminal device (or network device) or a circuit, or may be a chip applied in the terminal device (or network device) or other devices having the above terminal device functions (or Network equipment) combined devices, components, etc.
  • the transceiver module may be a transceiver, which may include an antenna and a radio frequency circuit, etc.
  • the processing module may be a processor, such as a central processing unit (CPU).
  • the transceiver module may be a radio frequency unit
  • the processing module may be a processor.
  • the communication device can be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), or a system on chip (system on chip) , SoC), it can also be a CPU, it can be a network processor (network processor, NP), it can also be a digital signal processing circuit (digital signal processor, DSP), or it can be a microcontroller (micro controller unit, MCU) , it can also be a programmable logic device (PLD) or other integrated chip.
  • the processing module may be a processor of a chip system.
  • the transceiver module or communication interface may be the input/output interface or interface circuit of the chip system.
  • the interface circuit may be a code/data read and write interface circuit.
  • the interface circuit can be used to receive code instructions (code instructions are stored in the memory and can be read directly from the memory, or can also be read from the memory through other devices) and transmitted to the processor; the processor can be used to run all The code instructions are used to execute the methods in the above method embodiments.
  • the interface circuit may also be a signal transmission interface circuit between the communication processor and the transceiver.
  • the device may include a transceiver unit and a processing unit.
  • the transceiver unit may be an input-output circuit and/or a communication interface;
  • the processing unit may be an integrated processor or microprocessor or an integrated circuit.
  • An embodiment of the present application also provides a communication system.
  • the communication system includes at least one terminal device and at least one network device.
  • the communication system includes terminal equipment and network equipment used to implement the related functions of Figure 6 mentioned above.
  • terminal equipment and network equipment used to implement the related functions of Figure 6 mentioned above.
  • An embodiment of the present application also provides a computer-readable storage medium, which includes instructions that, when run on a computer, cause the computer to execute the method executed by the terminal device or network device in Figure 6 .
  • An embodiment of the present application also provides a computer program product, which includes instructions that, when run on a computer, cause the computer to execute the method executed by the terminal device or network device in Figure 6 .
  • Embodiments of the present application provide a chip system.
  • the chip system includes a processor and may also include a memory for realizing the functions of the terminal device in the foregoing method; or for realizing the functions of the network device in the foregoing method.
  • the chip system can be composed of chips or include chips and other discrete devices.
  • the size of the sequence numbers of the above-mentioned processes does not mean the order of execution.
  • the execution order of each process should be determined by its functions and internal logic, and should not be used in the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the computer software product is stored in a storage medium and includes a number of instructions to enable a A computer device (which may be a personal computer, a server, or a network device, etc.) executes all or part of the steps of the methods described in various embodiments of this application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), RAM, magnetic disk or optical disk and other media that can store program code.

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Abstract

L'invention concerne un procédé et un appareil de communication. Le procédé de communication comprend les étapes suivantes : un dispositif terminal envoie des premières informations de capacité à un dispositif de réseau, reçoit des informations de configuration de canal de commande en provenance du dispositif de réseau, et reçoit un canal de commande dans au moins une unité de temps selon les informations de configuration de canal de commande. Les premières informations de capacité sont utilisées pour indiquer une longueur de domaine temporel N d'un CORESET pris en charge par le dispositif terminal. Les informations de configuration de canal de commande sont utilisées pour déterminer la ou les unités de temps occupées par le canal de commande, la longueur de chaque unité de temps étant N. Au moyen du procédé, le dispositif de réseau détermine une configuration PDCCH sur la base de N rapporté par le dispositif de terminal, de telle sorte que l'inclusion d'un symbole de PDCCH MO dans chaque symbole dans une unité de temps peut être empêchée, ce qui permet de réduire la complexité de détection aveugle du dispositif terminal.
PCT/CN2023/103495 2022-08-20 2023-06-28 Procédé et appareil de communication WO2024041184A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202211002074.X 2022-08-20
CN202211002074.XA CN117676551A (zh) 2022-08-20 2022-08-20 一种通信方法及装置

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112398572A (zh) * 2019-08-14 2021-02-23 华为技术有限公司 一种通信方法及装置
WO2021062843A1 (fr) * 2019-09-30 2021-04-08 华为技术有限公司 Procédé et appareil de communication
WO2022087348A2 (fr) * 2020-10-22 2022-04-28 Ofinno, Llc Détermination d'occasion de référence dans une répétition de canal de commande

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112398572A (zh) * 2019-08-14 2021-02-23 华为技术有限公司 一种通信方法及装置
WO2021062843A1 (fr) * 2019-09-30 2021-04-08 华为技术有限公司 Procédé et appareil de communication
WO2022087348A2 (fr) * 2020-10-22 2022-04-28 Ofinno, Llc Détermination d'occasion de référence dans une répétition de canal de commande

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