WO2022082799A1 - 跨载波调度方法、终端设备和接入网设备 - Google Patents

跨载波调度方法、终端设备和接入网设备 Download PDF

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Publication number
WO2022082799A1
WO2022082799A1 PCT/CN2020/123449 CN2020123449W WO2022082799A1 WO 2022082799 A1 WO2022082799 A1 WO 2022082799A1 CN 2020123449 W CN2020123449 W CN 2020123449W WO 2022082799 A1 WO2022082799 A1 WO 2022082799A1
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WIPO (PCT)
Prior art keywords
cell
uss
pdcch
data
scheduling
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PCT/CN2020/123449
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English (en)
French (fr)
Inventor
花梦
彭金磷
王轶
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN202080106597.1A priority Critical patent/CN116349162A/zh
Priority to JP2023524527A priority patent/JP2023546933A/ja
Priority to PCT/CN2020/123449 priority patent/WO2022082799A1/zh
Priority to EP20958381.4A priority patent/EP4224741A4/en
Publication of WO2022082799A1 publication Critical patent/WO2022082799A1/zh
Priority to US18/304,526 priority patent/US20230262686A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0096—Indication of changes in allocation
    • H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • 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
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a cross-carrier scheduling method, a terminal device, and an access network device.
  • cross-carrier scheduling refers to one carrier scheduling another A carrier, that is, a physical downlink control channel (PDCCH) sent on one carrier for scheduling data transmission of another carrier, for example, a carrier of a primary cell (primary cell, PCell) schedules a secondary cell (secondary cell, SCell) carrier, or the carrier of one secondary cell SCell schedules the carrier of another secondary cell SCell.
  • a carrier of a primary cell primary cell
  • SCell secondary cell
  • the carrier of the secondary cell SCell can schedule the carrier of the primary cell PCell.
  • Embodiments of the present application provide a cross-carrier scheduling method, terminal equipment, and access network equipment, so as to implement efficient handover between USSs on BWPs of two cells.
  • an embodiment of the present application provides a cross-carrier scheduling method, the method includes: a terminal device monitors a PDCCH used for scheduling data of a third cell on at least one USS in a first cell, and receives first indication information, The first indication information is used to determine to stop monitoring the PDCCH for scheduling data of the third cell on at least one USS of the first cell, or to determine to monitor data for scheduling the third cell on at least one USS of the second cell
  • the PDCCH of the third cell is the first cell or the second cell; the terminal device stops monitoring the PDCCH used to schedule the data of the third cell on at least one USS of the first cell according to the first indication information, and determines that in the second cell
  • the PDCCH for scheduling data of the third cell is monitored on at least one USS on the cell, so as to achieve efficient handover between the USSs on the two cells.
  • the first indication information includes at least one of the following indications: an indication of deactivating the first cell; an indication of a BWP handover on the first cell, wherein the BWP handover There is no first USS on the BWP to be handed over to, and the first USS is a USS that contains a PDCCH candidate for the PDCCH that can carry data for scheduling the first cell; the first cell is configured as an indication of a dormant cell; in the first cell The indication of search space set switching on , wherein the search space set switching indication to indicate that there is no first USS in the search space set to be switched to.
  • the first indication information includes at least one of the following indications: an indication of activating the second cell, wherein the search space of the activated second cell includes the first USS in the search space set , the first USS is a USS that contains a PDCCH candidate for a PDCCH that can carry data for scheduling the first cell; an indication of BWP handover on the second cell, wherein the BWP indicated by the BWP handover indication to be handed over has a first USS; an indication to configure the second cell as a non-dormant cell, wherein the search space set of the non-dormant second cell includes the first USS; an indication that a search space set switching occurs on the second cell, wherein the search space set switching occurs There is the first USS in the search space set to be indicated by the indication to be switched to.
  • the first indication information includes the first type of indication information and the second type of indication information, and the first type of indication information is used to determine the first type of indication information belonging to the first USS on the second cell.
  • the PDCCH used for scheduling data of the third cell is monitored on a set of USSs, and the second type of indication information is used to determine the PDCCH used for scheduling data of the third cell monitored on the second set of USSs belonging to the first USS on the second cell .
  • the cross-carrier scheduling method provided in this embodiment of the present application further includes: the terminal device determines, according to the first indication information, to stop monitoring the at least one USS in the first cell for The time for scheduling the PDCCH of the data of the third cell, or determining the start time of monitoring the PDCCH for scheduling the data of the third cell on at least one USS on the second cell.
  • the terminal device determines, according to the first indication information, to stop at least one USS on the first cell The time of monitoring the PDCCH used for scheduling the data of the third cell on the second cell, or determining the start time of monitoring the PDCCH used for scheduling the data of the third cell on at least one USS on the second cell, specifically: the terminal device according to the first The effective time of deactivation of the cell determines the start time of monitoring the PDCCH used to schedule data of the third cell on at least one USS on the second cell; or, the terminal device determines to stop according to the effective time of the activation of the second cell The time of the PDCCH for scheduling data of the third cell is monitored on at least one USS on the first cell.
  • the terminal device determines, according to the first indication information, to stop monitoring the at least one USS in the first cell.
  • the terminal device specifies the time according to the DCI and the protocol , determine the time to stop monitoring the PDCCH for scheduling data of the third cell on at least one USS on the first cell, or determine to monitor the PDCCH for scheduling data of the third cell on at least one USS on the second cell or, according to the DCI and the search space set switching time, the terminal device determines the time to stop monitoring the PDCCH used to schedule the data of the third cell on at least one USS on the first cell, or determine the time to stop monitoring the PDCCH for scheduling data of the third cell on the second cell.
  • the start time of the PDCCH used for scheduling the data of the third cell is monitored on at least one USS of the The time of the PDCCH of the data of the cell, or determine the start time of monitoring the PDCCH for scheduling the data of the third cell on at least one USS on the second cell; or, the terminal device switches the time according to the configured minimum K0 and search space group The larger of the two, determine the time to stop monitoring the PDCCH used for scheduling data of the third cell on at least one USS on the first cell, or determine the time to stop monitoring the PDCCH used for scheduling the third cell on at least one USS on the second cell.
  • the start time of the PDCCH of the data of the three cells is monitored on at least one USS of the The time of the PDCCH of the data of the cell, or determine the start time of monitoring the PDCCH for scheduling the data of the third cell on at least one USS on the second cell; or, the terminal device switches the time according to the configured minimum K0 and search space group The larger of the two, determine the time to stop
  • the terminal device determines, according to the first indication information, the time to stop monitoring the PDCCH used for scheduling data of the third cell on at least one USS in the first cell, or determines Monitoring the start time of the PDCCH used for scheduling data of the third cell on at least one USS in the second cell, specifically: the terminal device determines the PDCCH in the second cell according to the effective time of the BWP handover in the first cell The start time of the PDCCH used to schedule the data of the third cell is monitored on at least one USS; wherein, the BWP to which the BWP handover instruction indicates that there is no first USS to be handed over to, and the first USS is the first USS that contains the third cell that can be loaded and scheduled.
  • the terminal device determines, according to the first indication information, the time to stop monitoring the PDCCH used for scheduling data of the third cell on at least one USS in the first cell, or determines Monitoring the start time of the PDCCH used for scheduling data of the third cell on at least one USS in the second cell, specifically: the terminal device determines at least one USS in the second cell according to the effective time when the first cell is a dormant cell The USS monitors the start time of the PDCCH used for scheduling the data of the third cell; or, according to the effective time when the second cell is a non-sleep cell, the terminal device determines to stop monitoring on at least one USS on the first cell for scheduling the first cell. The time of the PDCCH of the data of the three cells.
  • the terminal device determines, according to the first indication information, the time to stop monitoring the PDCCH used for scheduling data of the third cell on at least one USS in the first cell, or determines Monitoring the start time of the PDCCH used to schedule data of the third cell on at least one USS in the second cell, specifically: the terminal device determines that the second cell is on the second cell according to the time when the search space set is switched in the first cell.
  • the start time of the PDCCH used to schedule the data of the third cell is monitored on at least one USS of The time of the handover of the search space set on the cell, determines the time to stop monitoring the PDCCH used to schedule the data of the third cell on at least one USS on the first cell; wherein, the indication of the handover of the search space set is to indicate the time to be handed over to The search space set has the first USS.
  • the terminal device determines the time for stopping at least one USS on the first cell from monitoring the PDCCH used for scheduling data of the third cell, or determines to monitor the time on at least one USS on the second cell.
  • the start time of the PDCCH used to schedule the data of the third cell thereby ensuring efficient handover between the two cells and reducing the impact on the scheduling of the first cell.
  • an embodiment of the present application provides a cross-carrier scheduling method.
  • the method includes: an access network device determines to stop at least one USS in a first cell from sending a PDCCH for scheduling data of a third cell, and determines that at least one USS in the first cell The PDCCH used to schedule data of the third cell is sent on at least one first USS on the third cell, and the third cell is the first cell or the second cell; the access network device sends the first indication information to the terminal device; wherein, the first indication The information is used to instruct the terminal device to determine to stop monitoring the PDCCH for scheduling data of the third cell on at least one USS of the first cell, or to determine to monitor data for scheduling the third cell on at least one USS of the second cell the PDCCH, so as to achieve efficient handover between the USSs on the two cells.
  • the first indication information includes at least one of the following indications: an indication of deactivating the first cell; an indication of a BWP handover on the first cell, wherein the BWP handover There is no first USS on the BWP to be handed over to, and the first USS is a USS that contains a PDCCH candidate for the PDCCH that can carry data for scheduling the first cell; the first cell is configured as an indication of a dormant cell; in the first cell The indication of search space set switching on , wherein the search space set switching indication to indicate that there is no first USS in the search space set to be switched to.
  • the first indication information includes at least one of the following indications: an indication of activating the second cell, wherein the search space of the activated second cell includes the first USS in the search space set , the first USS is a USS that contains a PDCCH candidate for a PDCCH that can carry data for scheduling the first cell; an indication of BWP handover on the second cell, wherein the BWP indicated by the BWP handover indication to be handed over has a first USS; an indication to configure the second cell as a non-dormant cell, wherein the search space set of the non-dormant second cell includes the first USS; an indication that a search space set switching occurs on the second cell, wherein the search space set switching occurs There is the first USS in the search space set to be indicated by the indication to be switched to.
  • the first indication information includes the first type of indication information and the second type of indication information
  • the first type of indication information is used to instruct the terminal device to determine that the second cell belongs to the first type of indication information.
  • the first set of USS of the USS monitors the PDCCH used for scheduling data of the third cell
  • the second type of indication information is used to instruct the terminal device to determine to monitor the second set of USSs belonging to the first USS on the second cell for scheduling the third cell.
  • the cross-carrier scheduling method provided by the present application further includes: the access network device determines, according to the first indication information, to stop sending data for at least one USS on the first cell The time for scheduling the PDCCH of the data of the third cell, or determining the start time of transmitting the PDCCH for scheduling the data of the third cell on at least one USS on the second cell.
  • the access network device determines, according to the first indication information, to stop at least The time at which the PDCCH used for scheduling data of the third cell is sent on one USS, or the start time of sending the PDCCH used for scheduling data of the third cell on at least one USS on the second cell, specifically: the access network The device determines, according to the effective time of the deactivation of the first cell, the start time of sending the PDCCH used to schedule the data of the third cell on at least one USS in the second cell; The effective time is to determine the time to stop sending the PDCCH for scheduling data of the third cell on at least one USS in the first cell.
  • the access network device determines to stop on at least one USS in the first cell according to the first indication information
  • the time for sending the PDCCH for scheduling data of the third cell, or determining the start time for sending the PDCCH for scheduling data of the third cell on at least one USS on the second cell specifically: the access network device according to the DCI and the protocol specifies the time, determine the time to stop sending the PDCCH for scheduling the data of the third cell on at least one USS on the first cell, or determine the time to send the PDCCH for scheduling the third cell on at least one USS on the second cell
  • the access network device determines, according to the first indication information, the time to stop sending the PDCCH for scheduling data of the third cell on at least one USS in the first cell, Or determine the start time of sending the PDCCH used for scheduling data of the third cell on at least one USS in the second cell, specifically: the access network device determines, according to the effective time of the BWP handover in the first cell, the The start time of sending the PDCCH used to schedule data of the third cell on at least one USS in the second cell; wherein, the BWP to which the BWP handover indication indicates does not have the first USS, and the first USS contains the bearer scheduling The USS of the PDCCH candidate of the PDCCH of the data of the third cell; or, according to the effective time of the BWP handover in the second cell, the access network device determines to stop sending on at least one USS in the first cell for scheduling the third cell The time of the PDCCH of the data of the cell; where
  • the access network device determines, according to the first indication information, the time to stop sending the PDCCH for scheduling data of the third cell on at least one USS in the first cell, Or determine the start time of sending the PDCCH used to schedule data of the third cell on at least one USS in the second cell, specifically: the access network device determines, according to the effective time when the first cell is a dormant cell, that in the second cell The start time of sending the PDCCH used to schedule the data of the third cell on at least one USS on The time at which the PDCCH used to schedule the data of the third cell is sent on.
  • the access network device determines, according to the first indication information, the time to stop sending the PDCCH for scheduling data of the third cell on at least one USS in the first cell, Or determine the start time of sending the PDCCH used for scheduling data of the third cell on at least one USS in the second cell, specifically: the access network device determines the time at which the search space set is switched in the first cell The start time of sending the PDCCH used for scheduling data of the third cell on at least one USS on the second cell; wherein, the search space set switching indication indicates that there is no first USS in the search space set to be switched to; or, the access The network device determines the time to stop sending the PDCCH used to schedule the data of the third cell on at least one USS on the first cell according to the time of the search space set switching on the second cell; wherein, the indication of the search space set switching The set of search spaces to be indicated to switch to has the first USS.
  • the terminal device determines the time for stopping at least one USS on the first cell from monitoring the PDCCH used for scheduling data of the third cell, or determines to monitor the time on at least one USS on the second cell.
  • the start time of the PDCCH used to schedule the data of the third cell thereby ensuring efficient handover between the two cells and reducing the impact on the scheduling of the first cell.
  • the present application provides a communication device, comprising: a processor and a storage medium; at least one processor and an interface circuit, where the interface circuit is configured to receive signals from other communication devices other than the communication device and transmit to the processor Or send the signal from the processor to other communication devices than the communication device, and the processor is used to implement the first aspect and any one of the possible implementations of the first aspect through logic circuits or executing code instructions.
  • the communication device may be a terminal device or a chip in the terminal device.
  • the present application provides a communication device, comprising: a processor and a storage medium; at least one processor and an interface circuit, where the interface circuit is configured to receive signals from other communication devices other than the communication device and transmit to the processor Or send the signal from the processor to other communication devices than the communication device, and the processor is used to implement the second aspect and any one of the possible implementations of the second aspect through logic circuits or executing code instructions.
  • the communication device may be an access network device or a chip in the access network device.
  • the present application provides a communication system, including a first communication device and a second communication device.
  • the first communication device is configured to execute the method described in any possible implementation manner of the first aspect and the first aspect;
  • the second communication device is configured to execute any one of the second aspect and the second aspect The methods described in possible implementations.
  • the present application provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are executed on a computer, the computer is made to execute any one of the first aspect and the first aspect.
  • the present application provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are executed on a computer, the computer is made to execute any one of the second aspect and the second aspect.
  • the present application provides a computer program product comprising instructions that, when the computer program product is run on a computer, cause the computer to perform as described in the first aspect and any possible implementation manner of the first aspect method.
  • the present application provides a computer program product comprising instructions that, when the computer program product is run on a computer, cause the computer to perform as described in the second aspect and any possible implementation of the second aspect method.
  • FIG. 1 is a schematic structural diagram of a mobile communication system to which an embodiment of the application is applied;
  • FIG. 2 is a schematic diagram of a hardware structure of an access network device and a terminal device provided by an embodiment of the present application;
  • FIG. 3 is a flowchart of a cross-carrier scheduling method provided by an embodiment of the present application.
  • FIG. 4 is a flowchart of another cross-carrier scheduling method provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the cross-carrier scheduling method provided in the embodiment of the present application is applied to the mobile communication system 100 shown in FIG. 1 .
  • FIG. 1 is a schematic structural diagram of a mobile communication system to which an embodiment of the present application is applied.
  • the mobile communication system 100 includes a core network device 110 , an access network device 120 and at least one terminal device (such as the terminal device 130 and the terminal device 140 in FIG. 1 ).
  • the terminal device is connected with the access network device 120 in a wireless manner
  • the access network device 120 is connected with the core network device 110 in a wireless or wired manner.
  • the core network device 110 and the access network device 120 may be independent and different physical devices, or the functions of the core network device 110 and the logical functions of the access network device 120 may be integrated on the same physical device, or they may be one physical device.
  • the physical device integrates the functions of some core network devices and some access network devices.
  • Terminal equipment can be fixed or movable.
  • FIG. 1 is just a schematic diagram, and the communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG. 1 .
  • the embodiments of the present application do not limit the number of core network devices, wireless access network devices, and terminal devices included in the mobile communication system.
  • the access network device 120 is an access device through which the terminal device wirelessly accesses the mobile communication system, and may be a base station NodeB, an evolved base station eNodeB, a base station in an NR mobile communication system, a base station in a future mobile communication system, or a base station in a future mobile communication system.
  • a base station NodeB an evolved base station eNodeB
  • a base station in an NR mobile communication system a base station in a future mobile communication system
  • a base station in a future mobile communication system or a base station in a future mobile communication system.
  • the embodiments of the present application do not limit the specific technology and specific device form adopted by the wireless access network device.
  • a terminal device may also be referred to as a terminal terminal, a user equipment (UE), a mobile station (mobile station, MS), a mobile terminal (mobile terminal, MT), and the like.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • Access network equipment and terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle; can also be deployed on water; can also be deployed in the air on aircraft, balloons and artificial satellites.
  • the embodiments of the present application do not limit the application scenarios of the access network device and the terminal device.
  • the embodiments of the present application may be applicable to downlink signal transmission, uplink signal transmission, and device to device (device to device, D2D) signal transmission.
  • the sending device is an access network device
  • the corresponding receiving device is a terminal device.
  • the sending device is a terminal device
  • the corresponding receiving device is an access network device.
  • the sending device is a terminal device
  • the corresponding receiving device is also a terminal device.
  • the transmission direction of the signal in the embodiments of the present application is not limited.
  • Communication between access network equipment and terminal equipment and between terminal equipment and terminal equipment can be performed through licensed spectrum (licensed spectrum), or through unlicensed spectrum (unlicensed spectrum), or both licensed spectrum and license-free spectrum.
  • spectrum for communication The radio access network equipment and the terminal equipment and between the terminal equipment and the terminal equipment can communicate through the frequency spectrum of 6GHz and below, and can also communicate through the frequency spectrum above 6GHz, and can also use the frequency spectrum below 6GHz and above 6GHz at the same time. spectrum for communication.
  • the embodiments of the present application do not limit the spectrum resources used between the access network device and the terminal device.
  • FIG. 2 it is a schematic diagram of a hardware structure of an access network device and a terminal device according to an embodiment of the present application.
  • the terminal device 130 includes at least one processor 301 , at least one memory 302 , and at least one transceiver 303 .
  • the terminal device 30 may further include an output device 304 and an input device 305 .
  • the processor 301, the memory 302 and the transceiver 303 are connected by a bus.
  • the processor 301 may be a general-purpose central processing unit (Central Processing Unit, CPU), a microprocessor, an application-specific integrated circuit (Application-Specific Integrated Circuit, ASIC), or one or more processors for controlling the execution of the programs of the present application. integrated circuit.
  • the processor 301 may also include multiple CPUs, and the processor 301 may be a single-CPU processor or a multi-CPU processor.
  • a processor herein may refer to one or more devices, circuits, or processing cores for processing data (eg, computer program instructions).
  • Memory 302 may be Read-Only Memory (ROM) or other types of static storage devices that can store static information and instructions, Random Access Memory (RAM), or other types of information and instructions that can be stored It can also be an electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being executed by a computer Access any other medium without limitation.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • EEPROM Electrically erasable programmable Read-only memory
  • CD-ROM Compact disc read-only memory
  • CD-ROM compact disc read-only memory
  • optical disk storage including compact discs, laser discs, optical discs, digital versatile discs
  • the memory 302 may exist independently and be connected to the processor 301 through a bus.
  • the memory 302 may also be integrated with the processor 301 .
  • the memory 302 is used for storing the application program code for executing the solution of the present application, and the execution is controlled by the processor 301 .
  • the processor 301 is configured to execute the computer program code stored in the memory 302, so as to implement the coordinated transmission method described in the embodiments of the present application.
  • the transceiver 303 can use any transceiver-like device for communicating with other devices or communication networks, such as Ethernet, Radio Access Network (RAN), Wireless Local Area Networks (WLAN), etc. .
  • the transceiver 303 includes a transmitter Tx and a receiver Rx.
  • the output device 304 communicates with the processor 301 and can display information in a variety of ways.
  • the output device 304 may be a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display device, a Cathode Ray Tube (CRT) display device, or a projector (projector) Wait.
  • the input device 305 is in communication with the processor 301 and can receive user input in a variety of ways.
  • the input device 305 may be a mouse, a keyboard, a touch screen device or a sensing device, or the like.
  • the access network device 120 includes at least one processor 201 , at least one memory 202 , at least one transceiver 203 and at least one network interface 204 .
  • the processor 201, the memory 202, the transceiver 203 and the network interface 204 are connected by a bus.
  • the network interface 204 is used to connect with the core network device through a link (such as the S1 interface), or connect with the network interface of other access network devices through a wired or wireless link (such as the X2 interface) (not shown in the figure). ), which is not specifically limited in the embodiments of the present application.
  • the access network device schedules the physical downlink shared channel (PDSCH) to the terminal device through the physical downlink control channel (PDCCH).
  • PDSCH physical downlink shared channel
  • PDCCH physical downlink control channel
  • K0>0 indicates that the PDCCH and the scheduled PDSCH are not in the same time slot.
  • Minimum K0 refers to the minimum available slot offset of the PDSCH when scheduling across time slots, that is, the smallest available K0 in the slot offset values between the PDCCH and the scheduled PDSCH.
  • the time slot actually refers to the LTE subframe. If applied to the NR system, the time slot is the NR time slot.
  • the access network device schedules the PDSCH to the terminal device through the PDCCH.
  • the terminal device periodically monitors the PDCCH used to schedule the PDSCH.
  • minimum K0>0 the terminal device only needs to monitor the PDCCH, and does not need to buffer the possible PDSCH in this time slot, thereby saving the power consumption of the terminal device. If the terminal device monitors that the PDSCH is scheduled on the PDCCH, the terminal device receives the PDSCH in the time slot of K0 indicated by the PDCCH.
  • BWP Bandwidth Part
  • BWP bandwidth part
  • the state of the BWP includes an active state and an inactive state.
  • the active state refers to the workable state.
  • the BWP being in an active state means that the BWP is in a workable state, which can also be described as "activated BWP".
  • the BWP may enable signal transmission or reception.
  • the inactive state is a concept corresponding to the active state, which refers to a non-working state.
  • the BWP being in an inactive state means that the BWP is in an inoperable state, which can also be described as "inactive BWP" or "deactivated BWP".
  • the process of converting the BWP from an inactive state to an active state, or the process of converting an inoperable BWP into a workable BWP is the activation of the BWP.
  • the process of converting the BWP from an active state to an inactive state, or the process of converting a working BWP to an inoperable BWP is both deactivating the BWP, and can also be described as performing deactivation on the BWP.
  • the BWP can be divided into downstream BWP and upstream BWP.
  • the access network device can configure multiple DL BWPs and multiple UL BWPs for the terminal device, and activate at least one DL BWP and at least one UL BWP, and the terminal device receives the access network on the activated DL BWP (ie active DL BWP). Downlink transmission sent by the device. Wherein, the terminal equipment sends uplink transmission on the activated UL BWP.
  • the uplink transmission includes but is not limited to: transmission of uplink control signaling, transmission of uplink data and transmission of uplink reference signals.
  • the uplink control signaling includes: correct acknowledgement (acknowledge, ACK)/error acknowledgement (negative acknowledgement), scheduling request (scheduling request, SR), channel state information (channel state information, CSI).
  • the uplink reference signals include: demodulation reference signals (DMRS), phase-tracking reference signals (PTRS), sounding reference signals (SRS), and the like.
  • NR supports using the DCI of scheduling data to trigger terminal equipment to perform BWP handover.
  • BWP switch for switching the active BWP.
  • the active BWP can vary, known as "BWP handover".
  • the access network equipment configures two DL BWPs for the terminal equipment, namely DL BWP1 and DL BWP2.
  • the downlink scheduling DCI format 1_1 or DCI format 1_2 may carry the BWP switching indication.
  • the access network device may send the downlink scheduling DCI format 1_1 or DCI format 1_2 to the terminal device, where the scheduling DCI is carried on the physical downlink control channel PDCCH and transmitted through the PDCCH.
  • the terminal device receives the scheduled DCI, and switches to the DL BWP indicated by the scheduled DCI to receive or send data.
  • the terminal device needs a certain processing delay to switch from one BWP to another BWP, and the processing delay is called T BWPswitchDelay . This value is defined as:
  • NR defines two different processing delay types, as shown in Table 1.
  • ⁇ is the subcarrier spacing parameter of the current terminal equipment operation, that is, the subcarrier spacing of the terminal equipment operation is 2 ⁇ ⁇ 15kHz.
  • a terminal device (such as a UE) can report to an access network device (such as a gNB) whether the supported BWP handover capability is type 1 or type 2.
  • a CCE contains 6 resource element groups (REG: Resource-Element Group), and each REG corresponds to an RB on an OFDM symbol.
  • the terminal equipment may detect a PDCCH candidate to determine whether the terminal equipment's own PDCCH exists.
  • the access network device will configure one or more search spaces search space (or called search space set search space set, which can be expressed uniformly using search space) for terminal equipment.
  • the search space includes multiple PDCCH candidates, one PDCCH candidate may carry one PDCCH, and the terminal device blindly detects the PDCCH on the PDCCH candidate.
  • the search space is configured as follows:
  • searchSpaceId the identifier of the search space
  • controlResourceSetId The ID of the CORESET associated with the search space, which can be used to determine the time-frequency position of the search space;
  • monitoringSlotPeriodicityAndOffset The period and offset of the search space, which can be used to determine the time domain position of the search space;
  • nrofCandidates the number of PDCCH candidates for each AL
  • searchSpaceType Indicates the search space type. There are two types of search space sets: Common Search Space (CSS, Common Search Space) and UE-specific Search Space (USS: Ue-specific Search Space).
  • CSS Common Search Space
  • USS UE-specific Search Space
  • the search space configuration for cross-carrier scheduling supported in NR is:
  • nrofCandidates indicates the number of AL and PDCCH candidates in the associated scheduling carrier.
  • searchSpaceId indicates the identification of the search space (during cross-carrier scheduling, search spaces with the same searchSpaceId in the scheduling cell and the scheduled cell are associated with each other).
  • the high-level parameter searchSpaceGroupIdList-r16 can configure a search space group identifier for a terminal device, and the identifier of each search space group corresponds to a set of Type3-PDCCH CSS set or USS (other CSS sets are always monitored ).
  • the high-level parameter searchSpaceSwitchingDelay-r16 can configure a switching capability P switch for a terminal device, and the minimum value of this P switch is shown in Table 2.
  • the high-level parameter searchSpaceGroupIdList-r16 has a minimum value of 10 and a maximum value of 52.
  • the terminal device can report the handover capability 1 or handover capability 2 that it supports. If it is not reported, the default is capability 1.
  • ⁇ is the subcarrier spacing parameter of the current terminal equipment operation, that is, the subcarrier spacing of the terminal equipment operation is 2 ⁇ ⁇ 15kHz.
  • the high-level parameter searchSpaceSwitchingTimer-r16 can configure a timer value for a terminal device. For each slot corresponding to the reference SCS ⁇ , the timer value is decremented by 1. When the timer decreases to 0, the terminal device starts monitoring the PDCCH on a default set of search space sets.
  • the implementation manner of the terminal device switching the PDCCH on the monitoring search space set can be as follows:
  • DCI format 2_0 can indicate the switching method of the search space set group as follows:
  • the terminal device starts monitoring the PDCCH on the search space set group whose identifier is 0 in the search space group, and stops monitoring the PDCCH on the search space set group whose identifier is 1 in the search space group.
  • the terminal device starts monitoring the PDCCH on the search space set group whose identifier is 1 in the search space group, and stops monitoring the PDCCH on the search space set group whose identifier is 0 in the search space group. And, the terminal device sets the timer value to searchSpaceSwitchingTimer-r16.
  • the terminal equipment On a serving cell, the terminal equipment is monitoring the PDCCH on the search space set group whose identifier is 1 in the search space group. If the timer expires in a slot, the P switch symbol after the slot belongs to the PDCCH after the slot. On the first slot, the terminal device starts monitoring the PDCCH on the search space set group whose identifier is 0 in the search space group, and stops monitoring the PDCCH on the search space set group whose identifier is 1 in the search space group.
  • the switching method of the search space set group is as follows:
  • the terminal device If the terminal device detects the PDCCH on the search space set group whose identifier is 0 in the search space group, then on this serving cell, the time slot after the time slot to which the symbol of the PDCCH carrying the DCI format and the symbol of the switching capability P switch belong. In the first slot, the terminal device starts monitoring the PDCCH on the search space set group whose identifier is 1 in the search space group, and stops monitoring the PDCCH on the search space set group whose identifier is 0 in the search space group.
  • the terminal equipment On a serving cell, the terminal equipment is monitoring the PDCCH on the search space set group whose identifier is 1 in the search space group. If the timer expires in a slot, the P switch symbol after the slot belongs to the PDCCH after the slot. On the first slot, the terminal device starts monitoring the PDCCH on the search space set group whose identifier is 0 in the search space group, and stops monitoring the PDCCH on the search space set group whose identifier is 1 in the search space group.
  • the terminal equipment Under the dual link (DC, Dual connectivity), the terminal equipment establishes links with multiple cells, and these cells are divided into two groups: the primary cell group (MCG, Master Cell Group) and the secondary cell group (SCG, Secondary Cell group). If dual linking is not performed, then the set of cells with which the terminal device communicates is the MCG.
  • MCG Primary Cell Group
  • SCG Secondary Cell group
  • Multiple cells in the MCG are joined together by a carrier aggregation (CA, Carrier aggregation) technology.
  • Multiple cells in the SCG are joined together by a carrier aggregation (CA, Carrier aggregation) technology.
  • CA carrier aggregation
  • the primary cell in the MCG is the primary cell (PCell, Primary Cell)
  • the primary cell in the SCG is the primary secondary cell (PSCell, Primary Secondary Cell)
  • the other cells in the MCG and SCG are the secondary cells (SCell, Secondary Cell).
  • An activated SCell includes the following series of actions:
  • the terminal device sends a sounding reference signal (SRS) to the access network device;
  • SRS sounding reference signal
  • the terminal device reports the channel state information (CSI) of the SCell;
  • the terminal equipment detects the PDCCH for the SCell and transmission on the SCell;
  • the access network device configures the terminal device to transmit the PUCCH on the carrier, the access network device sends the PUCCH to the terminal device.
  • the terminal device starts or restarts the sCellDeactivationTimer (SCell deactivation timer), which triggers the terminal device to report the PHR;
  • the MAC entity of the terminal device When the MAC entity of the terminal device receives a command to deactivate a SCell or the sCellDeactivationTimer of the SCell times out, it deactivates the SCell, or stops the sCellDeactivationTimer of the SCell, or refreshes (clears) all the HARQ buffers on the SCell (hybrid automatic repeat request buffer).
  • the terminal device If an SCell is deactivated, the terminal device does not send SRS in the corresponding SCell, does not report the CSI of this SCell, does not transmit uplink data, does not detect the PDCCH used for this SCell and transmitted on this SCell, and does not send PUCCH.
  • the access network device sends the Activation/Deactivation MAC CE to the terminal device.
  • the terminal device determines the activation and deactivation states of the SCell according to the information in the MAC CE.
  • the terminal device can also deactivate the SCell according to the timer.
  • the terminal device maintains a deactivation timer sCellDeactivationTimer for each SCell, corresponding to all SCells of a terminal device, and the value of sCellDeactivationTimer is the same. Further, this value can be configured as "infinity", that is, the timer-based SCell deactivation is disabled, and the terminal device cannot control the deactivation of the SCell at this time.
  • the SCell when the terminal device does not receive data or a PDCCH message on the SCell within the time specified by the deactivation timer, the SCell will be deactivated. This is also the only case where the terminal device can automatically deactivate a certain SCell.
  • the terminal device activates the SCell at slot n+k at the earliest, and activates the SCell within the minimum requirements defined in TS38.133 at the latest.
  • k 1 refers to the transmission slot sequence number of the PUCCH carrying the received HARQ-ACK information of the PDSCH, which is indicated by the PDSCH-to-HARQ-timing-indicator field in the DCI scheduling the PDSCH. is the number of slots used in each subframe under the SCS configuration ⁇ of the PUCCH.
  • the terminal device deactivates the SCell within the minimum requirements defined in TS38.133 at the latest.
  • the terminal device when an SCell is activated, the terminal device starts to detect the SCell and the PDCCH transmitted on the SCell at slot n+kl at the earliest, and at the latest at the minimum requirement defined in TS38.133; when an SCell is deactivated, the terminal device At the earliest at slot n and at the latest at the minimum requirement defined in TS38.133, the PDCCH for this SCell and for transmission on this SCell is not detected.
  • 3GPP Rel-16 introduces the carrier Dormancy (sleep) mechanism of SCell.
  • the switching between the Dormancy (sleep) behavior and the non-dormancy (non-sleep) behavior of the SCell is achieved through BWP handover.
  • the terminal device When a certain SCell is indicated as dormancy, the terminal device will switch from the currently activated downlink BWP to the dormant BWP on the SCell, and the terminal device does not need to perform PDCCH detection on the dormant BWP, or, if the SCell is in cross-carrier scheduling When there is a scheduled carrier, the terminal equipment does not need to detect the PDCCH on the corresponding scheduled carrier that schedules the SCell.
  • the SCell dormancy indication (secondary carrier dormancy indication) field in the DCI format 0_1 or 1_1 indicates whether the SCell is dormancy or non-dormancy, and the DCI can schedule data at the same time.
  • the network configures up to 5 SCell groups through the parameter SCell-groups-for-dormancy-within-active-time.
  • the SCell dormancy indication has up to 5 bits, and each bit corresponds to one of the SCell groups. When the bit indicates '0', the BWP is switched to the dormant BWP on each activated SCell in the corresponding SCell group.
  • each activated SCell in the corresponding SCell group The terminal device on the SCell is in the non-dormant BWP, then the terminal device continues to work on the non-dormant BWP. If the terminal device is in the dormant BWP, then the terminal device switches to the first non-dormant BWP.
  • Mode 2 Indicate whether the SCell is dormancy or non-dormancy through a specific field in DCI format 1_1, and DCI cannot schedule data at the same time.
  • each bit corresponds to one SCell, which is used to indicate whether each SCell is dormancy or non-dormancy.
  • Mode 3 Indicate whether the SCell is dormancy or non-dormancy through the SCell dormancy indication (secondary carrier dormancy indication) field in DCI format 2_6.
  • the indication mode is basically similar to the first mode, the difference is that DCI format 2_6 is a group common DCI, which can be sent to multiple terminal devices without data scheduling.
  • cross-carrier scheduling refers to one carrier scheduling another carrier.
  • the carrier of the primary cell PCell schedules the carrier of the secondary cell SCell, or the carrier of one secondary cell SCell schedules the carrier of another secondary cell SCell.
  • the carrier of the secondary cell SCell may schedule the carrier of the primary cell PCell.
  • the control channel load on the PCell and the SCell varies with time. At one moment, the control channel load on the PCell may be higher than the control channel load on the SCell, and at the next moment, the control channel load on the SCell may be high. Control channel load on PCell. According to the change of the control channel load on the PCell and the SCell, a cell with a smaller load can be selected to transmit the control channel. Therefore, how to efficiently perform handover between USSs on the bandwidth part (BWP) of two cells has become an urgent problem to be solved.
  • BWP bandwidth part
  • an embodiment of the present application provides a cross-carrier scheduling method, in which a terminal device monitors at least one USS on a first cell for scheduling When the PDCCH of the data of the third cell is received, the first indication information is received. According to the first indication information, the terminal device stops at least one USS in the first cell to monitor the PDCCH for scheduling the data of the third cell, and determines that the PDCCH is used for scheduling the data of the third cell. The PDCCH for scheduling data of the third cell is monitored on at least one USS on the cell.
  • the methods in the following embodiments can all be implemented in a device having the above-mentioned hardware structure (such as the terminal device 130 and the terminal device 140 in FIG. 1 ).
  • FIG. 3 is a schematic flowchart of a cross-carrier scheduling method provided by an embodiment of the present application. As shown in Figure 3, the method may include:
  • the access network device determines to stop sending the PDCCH for scheduling data of the third cell on at least one USS of the first cell, and determines to send the PDCCH for scheduling data of the third cell on at least one USS of the second cell.
  • the cell refers to an area that logically provides services to users. Each cell corresponds to one carrier.
  • the first cell may be the primary cell PCell, and the second cell may be the secondary cell SCell.
  • the first cell may be the secondary cell SCell, and the second cell may be the primary cell PCell.
  • the first cell may be a secondary cell SCell, and the second cell may be another secondary cell SCell.
  • the indication content of the first indication information is also different.
  • the first indication information for the first cell includes an indication of BWP handover or an indication of search space set handover.
  • the first cell is an SCell, and the first indication information for the first cell may include an indication of activating/deactivating an SCell, an indication of BWP handover, an indication of search space set handover, an indication of a dormant cell, and an indication of a non-dormant cell. one or more.
  • the first indication information may also include other indications, which will not be listed one by one here.
  • the configuration BWP of the primary cell PCell can be configured with at least one USS that includes a PDCCH candidate that can carry the PDCCH that schedules the data of the first cell
  • the configuration BWP of the secondary cell SCell can also be configured with at least one USS that includes the PDCCH that can carry the scheduling data of the first cell.
  • the USS of the PDCCH candidate of the data PDCCH of a cell is in the working state.
  • S301a is specifically: according to the first indication information, the access network device determines that at least one USS of the PCell sends the PDCCH for scheduling the data of the third cell, and determines to stop the transmission of at least one USS on the SCell for scheduling the third cell the PDCCH of the data.
  • the access network device may also determine, according to the first indication information, that at least one USS on the SCell sends the PDCCH for scheduling the data of the third cell, and determines to stop the at least one USS on the PCell from sending the data for scheduling the third cell. PDCCH.
  • the access network device sends the first indication information to the terminal device.
  • the terminal device monitors the PDCCH for scheduling data of the third cell on at least one USS in the first cell.
  • the terminal device receives the first indication information.
  • the terminal device is in a state of monitoring the PDCCH for scheduling data of the third cell on at least one USS in the first cell, and receives the first indication information.
  • the terminal device executes S302a before the terminal device receives the first indication information.
  • the terminal device executes S302a.
  • the first cell may be the primary cell PCell, and the second cell may be the secondary cell SCell.
  • the first cell may be the secondary cell SCell, and the second cell may be the primary cell PCell.
  • the first cell may be a secondary cell SCell, and the second cell may be another secondary cell SCell.
  • the first indication information is used to determine to stop monitoring the PDCCH used for scheduling data of the third cell on at least one USS of the first cell, or to monitor at least one USS of the second cell for data scheduling of the third cell the PDCCH.
  • the content of the first indication information is also different accordingly. Specifically include the following categories:
  • the first type the first cell is the secondary cell SCell, and the second cell is the primary cell PCell
  • the first indication information includes at least one of the following indications:
  • An indication of BWP handover on the SCell wherein the BWP indicated by the BWP handover indication to be handed over does not have a first USS, and the first USS is a USS that includes a PDCCH candidate for a PDCCH that can carry data for scheduling the third cell;
  • search space set switching instruction is to indicate that there is no first USS in the search space set to be switched to.
  • the second type the first cell is the secondary cell SCell, and the second cell is the primary cell PCell
  • the first indication information includes at least one of the following indications:
  • An indication of BWP handover on the PCell wherein the BWP indicated by the BWP handover indication to be handed over has a first USS, and the first USS is a USS that includes a PDCCH candidate for a PDCCH that can carry data for scheduling the third cell;
  • the indication of search space set switching on the PCell, wherein the search space set switching instruction to indicate that the search space set to be switched to has the first USS.
  • the third type the first cell is the primary cell PCell, and the second cell is the secondary cell SCell
  • the first indication information includes at least one of the following indications:
  • An indication of BWP handover on the SCell wherein the BWP indicated by the BWP handover indication to be handed over has a first USS, and the first USS is a USS that includes a PDCCH candidate for a PDCCH that can carry data for scheduling the third cell;
  • search space set switching instruction to indicate that there is a first USS in the search space set to be switched to.
  • the fourth type the first cell is the primary cell PCell, and the second cell is the secondary cell SCell
  • the first indication information includes at least one of the following indications:
  • An indication of BWP handover on PCell wherein the BWP indicated by the BWP handover indication to be handed over does not have a first USS, and the first USS is a USS that includes a PDCCH candidate for a PDCCH that can carry data for scheduling the third cell;
  • the indication of search space set switching on the PCell wherein the search space set switching indication to indicate that there is no first USS in the search space set to be switched to.
  • the fifth type the first cell is the first secondary cell SCell, and the second cell is the second secondary cell SCell
  • the first indication information includes at least one of the following indications:
  • the BWP handover indication on the second SCell wherein the BWP indicated by the BWP handover indication to be handed over has a first USS, and the first USS is a PDCCH candidate that includes a PDCCH that can carry data for scheduling the third cell USS;
  • the sixth category the first cell is the first secondary cell SCell, and the second cell is the second secondary cell SCell
  • the BWP handover indication on the first SCell, where the BWP indicated by the BWP handover indication to be handed over does not have the first USS, and the first USS is a PDCCH candidate that includes a PDCCH that can carry data for scheduling the third cell USS;
  • search space set switching indication is to indicate that there is no first USS in the search space set to be switched to.
  • the terminal device stops monitoring the PDCCH used for scheduling the data of the third cell on at least one USS of the first cell, or determines to monitor the PDCCH used for scheduling the data of the third cell on at least one USS on the second cell The PDCCH of the data of the three cells.
  • the first cell is the secondary cell SCell
  • the second cell is the primary cell PCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information includes an indication of deactivating the SCell
  • the terminal device deactivates the SCell according to the instruction of the deactivated SCell, or stops the deactivation timer sCellDeactivationTimer of the SCell, or refreshes or clears all the HARQ buffers on the SCell. At this time, the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the PCell.
  • the first cell is the secondary cell SCell
  • the second cell is the primary cell PCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information is carried in the DCI
  • the first indication information is included on the SCell Indication of the BWP switch
  • the terminal device switches the BWP to be switched to according to the BWP switching instruction on the SCell, the BWP to be switched to does not have the first USS, and the first USS is the PDCCH containing the PDCCH that can carry the data scheduled in the third cell Candidate USS.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the PCell.
  • the first cell is the secondary cell SCell
  • the second cell is the primary cell PCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information is carried in the DCI
  • the first indication information includes configuring the SCell as Indication of dormant cell
  • the terminal device indicates that the SCell is a dormant cell according to the secondary carrier dormancy indication SCell dormancy indication field in DCI format 0_1 or 1_1, and the BWP activated on the SCell is switched to the dormant BWP.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the PCell, and determines to stop monitoring the data for scheduling the third cell on at least one USS of the first SCell the PDCCH.
  • the access network device configures a maximum of 5 SCell groups through the parameter SCell-groups-for-dormancy-within-active-time, and the SCell dormancy indication has a maximum of 5 bits, and each bit corresponds to one of the SCell groups.
  • the bit indication of the terminal device as '0', the BWP is switched to the dormant BWP on each activated SCell in the corresponding SCell group.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the PCell, and determines to stop monitoring the data for scheduling the third cell on at least one USS of the first SCell the PDCCH.
  • the terminal device indicates that the SCell is a dormant cell according to a specific field in the DCI format 1_1, the BWP activated on the SCell is switched to the dormant BWP, and there is no first USS on the dormant BWP, and the first USS contains the bearer scheduling in the first USS.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the PCell, and determines to stop monitoring the data for scheduling the third cell on at least one USS of the first SCell the PDCCH.
  • the terminal device indicates that the SCell is a dormant cell according to the secondary carrier dormancy indication SCell dormancy indication field in DCI format 2_6, the BWP activated on the SCell is switched to the dormant BWP, there is no first USS on the dormant BWP, and the first USS is USS containing the PDCCH candidates of the PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the PCell, and determines to stop monitoring the data for scheduling the third cell on at least one USS of the first SCell the PDCCH.
  • the first cell is the secondary cell SCell
  • the second cell is the primary cell PCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information is carried in the DCI
  • the first indication information is included on the SCell
  • the terminal device receives the DCI format 2_0, indicating that the search space set switching occurs on the SCell, wherein the search space set switching instruction to indicate that the search space set to be switched to has the first USS, and the first USS is in the bearer
  • the first time slot after the time slot to which the PDCCH symbol of the DCI format 2_0 and the handover capability P switch symbol belong the terminal device determines to monitor the PDCCH used for scheduling the data of the third cell on at least one first USS on the PCell , stop monitoring the PDCCH for scheduling data of the third cell on at least one USS of the SCell.
  • the terminal device monitors the PDCCH used for scheduling data of the third cell on at least one first USS on the SCell, and the timer expires on the current time slot, and the terminal device is at the time when the symbol of the PDCCH after the current time slot belongs.
  • the terminal device determines to monitor the PDCCH used for scheduling the data of the third cell on at least one first USS on the PCell, and stops monitoring the PDCCH used for scheduling the third cell on at least one USS of the SCell. PDCCH of data.
  • the terminal device monitors the PDCCH that schedules the data of the third cell on the USS whose identifier is 1 in the search space group, and on the SCell, after the time slot to which the symbol of the PDCCH carrying the DCI format and the symbol of the switching capability P switch belong.
  • the terminal device determines to monitor the PDCCH used for scheduling the data of the third cell on at least one first USS on the PCell, and stops monitoring the PDCCH used for scheduling the data of the third cell on at least one USS of the SCell. PDCCH.
  • the first cell is the secondary cell SCell
  • the second cell is the primary cell PCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information includes an indication of BWP handover on the PCell
  • the terminal device switches the BWP to be switched to according to the BWP switching instruction on the PCell.
  • the BWP to be switched to has a first USS, and the first USS is a PDCCH that includes a PDCCH that can carry data scheduled in the third cell Candidate USS.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the PCell, and determines to stop monitoring the PDCCH for scheduling data of the third cell on at least one first USS on the SCell.
  • the first cell is the secondary cell SCell
  • the second cell is the primary cell PCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information includes an indication of search space set switching on the PCell
  • the terminal device switches the BWP to be switched to according to the instruction of the search space set switch on the PCell, and the BWP to be switched to has a first USS, and the first USS is a PDCCH that contains data that can be scheduled in the third cell USS of the PDCCH candidates.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the PCell, and determines to stop monitoring the PDCCH for scheduling data of the third cell on at least one first USS on the SCell.
  • the first cell is the primary cell PCell
  • the second cell is the secondary cell SCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information includes an indication of activating the SCell
  • the terminal device activates the SCell according to the instruction of activating the SCell. At this time, the terminal device determines to monitor the PDCCH used for scheduling data of the third cell on at least one first USS on the SCell, and determines to stop on at least one USS of the PCell The PDCCH for scheduling data of the third cell is monitored.
  • the first cell is the primary cell PCell
  • the second cell is the secondary cell SCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information is carried in the DCI
  • the first indication information is included on the SCell Indication of the BWP switch
  • the terminal device switches the BWP to be switched to according to the BWP switching instruction on the SCell, and the BWP to be switched to has a first USS, and the first USS is a PDCCH containing a PDCCH that can carry data scheduled in the third cell Candidate USS.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the SCell, and determines to stop monitoring the PDCCH for scheduling data of the third cell on at least one USS of the PCell.
  • the first cell is the primary cell PCell
  • the second cell is the secondary cell SCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information is carried in the DCI
  • the first indication information includes configuring the SCell as Indication of non-sleep cells
  • the terminal equipment indicates that the SCell is a non-dormancy cell according to the secondary carrier dormancy indication SCell dormancy indication field in DCI format 0_1 or 1_1, and the dormant BWP on the SCell is switched to the non-dormancy BWP, and the non-dormancy BWP has the first USS,
  • the first USS is a USS that includes a PDCCH candidate for a PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the SCell.
  • the access network device configures a maximum of 5 SCell groups through the parameter SCell-groups-for-dormancy-within-active-time, and the SCell dormancy indication has a maximum of 5 bits, and each bit corresponds to one of the SCell groups.
  • the bit indication of the terminal device as '1', the dormancy BWP on each SCell in the corresponding SCell group is switched to the non-dormancy BWP, and the non-dormancy BWP has the first USS, and the first USS contains the The USS of the PDCCH candidate of the PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the SCell.
  • the terminal device indicates that the SCell is a non-dormant cell according to the specific field in the DCI format 1_1, and the dormancy BWP on the SCell is switched to the non-dormancy BWP, and the non-dormancy BWP does not have a first USS, and the first USS contains The USS of the PDCCH candidate of the PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the SCell.
  • the terminal device indicates that the SCell is a non-dormancy cell according to the secondary carrier dormancy indication SCell dormancy indication field in DCI format 2_6, the dormancy BWP on the SCell is switched to the non-dormancy BWP, and there is no first USS on the non-dormancy BWP,
  • the first USS is a USS that includes a PDCCH candidate for a PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the SCell.
  • the first cell is the primary cell PCell
  • the second cell is the secondary cell SCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information is carried in the DCI
  • the first indication information is included on the SCell
  • the terminal device receives the instruction of DCI format 2_0 indicating that the search space set switching occurs on the PCell, wherein the search space set switching instruction to indicate that the search space set to be switched to does not have the first USS, and the first USS is not in the search space set that carries the The first time slot after the time slot to which the symbol of the PDCCH of DCI format 2_0 and the switching capability P switch symbol belong, the terminal device determines to monitor the PDCCH used for scheduling data of the third cell on at least one first USS on the SCell, And it is determined to stop monitoring the PDCCH for scheduling data of the third cell on at least one USS of the PCell.
  • the terminal device monitors the PDCCH used for scheduling data of the third cell on at least one first USS on the PCell, and the timer expires on the current time slot, and the terminal device is at the time to which the symbol of the PDCCH after the current time slot belongs.
  • the terminal device determines to monitor the PDCCH for scheduling the data of the third cell on at least one first USS on the SCell, and determines to stop monitoring on at least one USS of the PCell for scheduling the third cell. PDCCH of the data of the cell.
  • the terminal device monitors the PDCCH that schedules the data of the third cell on the USS whose identifier is 0 in the search space group.
  • the first time slot of the terminal equipment determines to monitor the PDCCH for scheduling the data of the third cell on at least one first USS on the SCell, and determines to stop monitoring the data for scheduling the third cell on at least one USS of the PCell the PDCCH.
  • the first cell is the primary cell PCell
  • the second cell is the secondary cell SCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information includes an indication of BWP handover on the PCell
  • the terminal device switches the BWP to be switched to according to the BWP switching instruction on the PCell, the BWP to be switched to does not have the first USS, and the first USS is the PDCCH containing the PDCCH that can carry the data scheduled in the third cell Candidate USS.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the SCell, and determines to stop monitoring the PDCCH for scheduling data of the third cell on at least one first USS on the PCell.
  • the first cell is the primary cell PCell
  • the second cell is the secondary cell SCell
  • the third cell is the primary cell PCell or the secondary cell SCell
  • the first indication information includes an indication of search space set switching on the Pell
  • the terminal device switches the BWP to be switched to according to the instruction of the search space set switch on the PCell, the BWP to be switched to does not have the first USS, and the first USS is the PDCCH that contains the data that can be scheduled in the third cell USS of the PDCCH candidates.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the SCell, and determines to stop monitoring the PDCCH for scheduling data of the third cell on at least one first USS on the PCell.
  • the first cell is the first secondary cell SCell
  • the second cell is the second secondary cell SCell
  • the third cell is the first SCell or the second SCell
  • the first indication information includes activating the second SCell instructions
  • the terminal device activates the second SCell according to the instruction of activating the second SCell. At this time, the terminal device determines to monitor the PDCCH used for scheduling the data of the third cell on at least one first USS on the second SCell, and It is determined to stop monitoring the PDCCH for scheduling data of the third cell on at least one USS of the first SCell.
  • the first cell is the first secondary cell SCell
  • the second cell is the second secondary cell SCell
  • the third cell is the first SCell or the second SCell
  • the first indication information is carried in the DCI
  • the The first indication information includes an indication of BWP handover on the second SCell
  • the terminal device switches the BWP to be switched to according to the BWP switching instruction on the second SCell.
  • the BWP to be switched to has a first USS, and the first USS contains the data that can carry the data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the second SCell, and determines to stop monitoring on at least one USS of the first SCell for scheduling the third cell PDCCH of the data of the cell.
  • the first cell is the first secondary cell SCell
  • the second cell is the second secondary cell SCell
  • the third cell is the first SCell or the second SCell
  • the first indication information is carried in the DCI
  • the The first indication information includes an indication to configure the second SCell as a non-sleep cell
  • the terminal device indicates that the second SCell is a non-dormancy cell according to the secondary carrier dormancy indication SCell dormancy indication field in DCI format 0_1 or 1_1, and the dormant BWP on the second SCell is switched to the non-dormancy BWP, the non-dormancy BWP
  • a first USS which is a USS that includes a PDCCH candidate for a PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the second SCell, and determines to stop monitoring the data for scheduling the third cell on at least one USS of the first SCell the PDCCH.
  • the access network device configures a maximum of 5 SCell groups through the parameter SCell-groups-for-dormancy-within-active-time, and the SCell dormancy indication has a maximum of 5 bits, and each bit corresponds to one of the SCell groups.
  • the bit indication of the terminal device as '1', the dormancy BWP on each second SCell in the corresponding SCell group is switched to the non-dormancy BWP, the non-dormancy BWP has the first USS, the first The USS is a USS containing a PDCCH candidate for a PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the second SCell, and determines to stop monitoring the data for scheduling the third cell on at least one USS of the first SCell the PDCCH.
  • the terminal device indicates that the second cell is a non-dormant cell according to a specific field in DCI format 1_1, and the dormancy BWP on the second cell is switched to a non-dormancy BWP, and there is no first USS on the non-dormancy BWP, and the first USS is on the non-dormancy BWP.
  • a USS is a USS containing a PDCCH candidate for a PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the second SCell, and determines to stop monitoring the data for scheduling the third cell on at least one USS of the first SCell the PDCCH.
  • the terminal device indicates that the second SCell is a non-dormancy cell according to the secondary carrier dormancy indication SCell dormancy indication field in DCI format 2_6, and the dormancy BWP on the second SCell is switched to the non-dormancy BWP, the non-dormancy BWP
  • the first USS is a USS that includes a PDCCH candidate for a PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one USS of the second SCell, and determines to stop monitoring the data for scheduling the third cell on at least one USS of the first SCell the PDCCH.
  • the first cell is the first secondary cell SCell
  • the second cell is the second secondary cell SCell
  • the third cell is the first SCell or the second SCell
  • the first indication information is carried in the DCI
  • the The first indication information includes an indication of search space set switching on the second SCell
  • the terminal device receives the instruction of DCI format 2_0 indicating that the search space set switching occurs on the PCell, wherein the search space set switching instruction to indicate that the search space set to be switched to does not have the first USS, and the first USS is not in the search space set that carries the In the first time slot after the time slot to which the PDCCH symbol of DCI format 2_0 and the switching capability P switch symbol belong, the terminal device determines to monitor the data used for scheduling the third cell on at least one first USS on the second SCell and determine to stop monitoring the PDCCH for scheduling data of the third cell on at least one USS of the first SCell.
  • the terminal device monitors the PDCCH used to schedule the data of the third cell on at least one first USS on the first SCell, and the timer expires on the current time slot, and the symbol of the PDCCH after the current time slot by the terminal device In the first time slot after the time slot to which it belongs, the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the second SCell, and determines to stop at least one of the first USS on the first SCell. A PDCCH for scheduling data of the third cell is monitored on one USS.
  • the terminal device monitors the PDCCH that schedules the data of the third cell on the USS whose identifier is 0 in the search space group, and on the first SCell, the symbol of the PDCCH carrying the DCI format and the symbol of the switching capability P switch belong to In the first time slot after the time slot, the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the second SCell, and determines to stop on at least one USS of the first SCell The PDCCH for scheduling data of the third cell is monitored.
  • the first cell is the first secondary cell SCell
  • the second cell is the second secondary cell SCell
  • the third cell is the first SCell or the second SCell
  • the first indication information includes deactivating the first SCell Indication of the SCell
  • the terminal device deactivates the first SCell according to the instruction of the deactivated first SCell, or stops the deactivation timer sCellDeactivationTimer of the first SCell, or refreshes or clears the first SCell on the All hybrid automatic repeat request buffer HARQ buffer.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the second SCell.
  • the first cell is the first secondary cell SCell
  • the second cell is the second secondary cell SCell
  • the third cell is the first SCell or the second SCell
  • the first indication information is carried in the DCI
  • the The first indication information includes an indication of BWP handover on the first SCell
  • the terminal device switches the BWP to be switched to according to the BWP switching instruction on the first SCell. There is no first USS on the BWP to be switched to, and the first USS contains the data that can carry the data scheduled in the third cell.
  • the USS of the PDCCH candidate of the PDCCH At this time, the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the second SCell.
  • the first cell is the first secondary cell SCell
  • the second cell is the second secondary cell SCell
  • the third cell is the first SCell or the second SCell
  • the first indication information is carried in the DCI
  • the The first indication information includes an indication to configure the first SCell as a dormant cell
  • the terminal device indicates that the first SCell is a dormant cell according to the secondary carrier dormancy indication SCell dormancy indication field in DCI format 0_1 or 1_1, and the BWP activated on the SCell is switched to the dormant BWP. There is no first USS on the dormant BWP.
  • a USS is a USS containing a PDCCH candidate for a PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the second SCell, and determines to stop monitoring on at least one USS of the first SCell for scheduling the third cell PDCCH of the cell's data.
  • the access network device configures a maximum of 5 SCell groups through the parameter SCell-groups-for-dormancy-within-active-time, and the SCell dormancy indication has a maximum of 5 bits, and each bit corresponds to one of the SCell groups.
  • the bit indication of the terminal device as '0', the BWP is switched to the dormant BWP on each activated first SCell in the corresponding SCell group.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the second SCell, and determines to stop monitoring on at least one USS of the first SCell for scheduling the third cell PDCCH of the cell's data.
  • the terminal device indicates that the first SCell is a dormant cell according to a specific field in the DCI format 1_1, the BWP activated on the first SCell is switched to the dormant BWP, there is no first USS on the dormant BWP, and the first USS is USS containing the PDCCH candidates of the PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the second SCell, and determines to stop monitoring on at least one USS of the first SCell for scheduling the third cell PDCCH of the data of the cell.
  • the terminal device indicates that the first SCell is a dormant cell according to the secondary carrier dormancy indication SCell dormancy indication field in DCI format 2_6, the BWP activated on the first SCell is switched to the dormant BWP, and there is no first USS on the dormant BWP , the first USS is a USS that includes a PDCCH candidate of a PDCCH that can carry data scheduled in the third cell.
  • the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the second SCell, and determines to stop monitoring on at least one USS of the first SCell for scheduling the third cell PDCCH of the cell's data.
  • the first cell is the first secondary cell SCell
  • the second cell is the second secondary cell SCell
  • the third cell is the first SCell or the second SCell
  • the first indication information is carried in the DCI
  • the The first indication information includes an indication of search space set switching on the first SCell
  • the terminal device receives DCI format 2_0, indicating that the search space set switching occurs on the first SCell, wherein the search space set switching instruction to indicate that the search space set to be switched to has the first USS , in the first time slot after the time slot to which the symbol of the PDCCH carrying the DCI format 2_0 and the switching capability P switch symbol belong, the terminal device determines to monitor at least one first USS on the second SCell for scheduling the first time slot. For the PDCCH of the data of the three cells, stop monitoring the PDCCH for scheduling the data of the third cell on at least one USS of the first SCell.
  • the terminal device monitors the PDCCH used to schedule the data of the third cell on at least one first USS on the first SCell, and the timer expires on the current time slot, and the symbol of the PDCCH after the current time slot by the terminal device In the first time slot after the time slot to which it belongs, the terminal device determines to monitor the PDCCH used to schedule the data of the third cell on at least one first USS on the second SCell, and stops at at least one USS of the first SCell The PDCCH used to schedule the data of the third cell is monitored.
  • the terminal device monitors the PDCCH that schedules the data of the third cell on the USS whose identifier is 1 in the search space group, and on the first SCell, the symbol of the PDCCH carrying the DCI format and the symbol of the switching capability P switch belong to In the first time slot after the time slot, the terminal device determines to monitor the PDCCH for scheduling data of the third cell on at least one first USS on the second SCell, and stops monitoring on at least one USS of the first SCell PDCCH for scheduling data of the third cell.
  • the access network device sends the PDCCH to the terminal device.
  • the first indication information provided in this embodiment of the present application may include the first type of indication information and the second type of indication information, and the first type of indication information is used to determine whether the second cell belongs to the first type of indication information.
  • the PDCCH used for scheduling data of the third cell is monitored on the first set of USSs of a USS, and the second type of indication information is used to determine that monitoring on the second set of USSs belonging to the first USS on the second cell is used for scheduling the third cell the PDCCH of the data.
  • the first type of indication information may include an indication of at least one of scene a1-scenario a6, and correspondingly, the second type of indication information may include at least one indication of scene a1-scenario a6.
  • the first type of indication information may include an indication of at least one of scenarios b1 to b6, and correspondingly, the second type of indication information may include at least one of scenarios b1 to b6.
  • the first type of indication information may include an indication of at least one of scenarios c1 to c4, and correspondingly, the second type of indication information may include an indication of at least one of scenarios c1 to c4.
  • the first type of indication information may include at least one indication of scene d1-scenario d4, and correspondingly, the second type of indication information may include at least one indication of scene d1-scenario d4.
  • the terminal device When the terminal device monitors the PDCCH used for scheduling data of the third cell on at least one USS on the PCell, the terminal device determines to monitor the first set of USS on the PCell for scheduling according to the indication of the USS handover on the PCell For the PDCCH of the data of the third cell, stop monitoring the PDCCH for scheduling the data of the third cell on the second set of USSs of the SCell.
  • the first type of indication information includes an indication of configuring the SCell as a dormant cell, and the terminal device may determine that the SCell has no possibility of data scheduling in the near future. Therefore, the terminal device may determine to monitor the PDCCH for scheduling data of the third cell on the first set of USSs on the PCell.
  • the second type of indication information includes an indication of search space set switching on the SCell.
  • the terminal device can determine that the PDCCH load on the PCell is reduced. Therefore, the terminal device can determine that the second set of USS on the PCell is used for monitoring. PDCCH for scheduling data of the third cell.
  • the first indication information includes respectively instructing the terminal equipment to monitor the PDCCH used for scheduling the data of the third cell on each set of USS in each cell, which can meet the requirements of various scenarios. Different needs, high flexibility.
  • FIG. 4 is a schematic flowchart of another cross-carrier scheduling method provided by an embodiment of the present application.
  • the cross-carrier scheduling method provided by the embodiment of the present application may further include:
  • the terminal device determines, according to the first indication information, the time for stopping at least one USS on the first cell from monitoring the PDCCH for scheduling data of the third cell, or determines to monitor at least one USS on the second cell for monitoring the PDCCH used for scheduling data of the third cell.
  • the start time of the PDCCH for scheduling the data of the third cell is not limited to the first indication information, the time for stopping at least one USS on the first cell from monitoring the PDCCH for scheduling data of the third cell, or determines to monitor at least one USS on the second cell for monitoring the PDCCH used for scheduling data of the third cell.
  • the access network device determines, according to the first indication information, the time at which at least one USS in the first cell stops sending the PDCCH for scheduling the data of the third cell, or determines the time when at least one USS in the second cell sends the PDCCH for scheduling the data of the third cell.
  • the access network device and the terminal device determine the above time in the same manner.
  • the following takes the terminal device as an example to illustrate.
  • the terminal device determines that at least one USS on the first cell stops monitoring the time of the PDCCH used to schedule the data of the third cell in different ways, or the terminal device determines that the The manner in which the start time of the PDCCH for scheduling data of the third cell is monitored on at least one USS of the second cell is different.
  • scene a1 scene b1, scene c1 and scene d1
  • S303b may specifically be:
  • the terminal device determines, according to the effective time of the deactivation of the first cell, the start time of monitoring the PDCCH used for scheduling data of the third cell on at least one USS in the second cell; or,
  • the terminal device determines, according to the effective time of the activation of the second cell, the time for stopping at least one USS on the first cell from monitoring the PDCCH for scheduling data of the third cell.
  • S303b may specifically be:
  • the terminal device determines the time to stop at least one USS on the first cell from monitoring the PDCCH used to schedule the data of the third cell, or determines to monitor the PDCCH on at least one USS on the second cell.
  • the time specified in the protocol is related to the DCI parsing time.
  • the terminal device is not configured with minimum K0 and searchSpaceSwitchingDelay-r16, and the terminal device determines the at least one USS that stops on the first cell according to the end time of the DCI and the first time slot after the time slot to which the protocol specified time belongs. The time to monitor the PDCCH for scheduling data for the third cell, or to determine the start time for monitoring the PDCCH for scheduling data for the third cell on at least one USS on the second cell.
  • the terminal device determines, according to the DCI and the search space set switching time, the time at which at least one USS on the first cell stops monitoring the PDCCH used to schedule the data of the third cell, or determines the time when at least one USS on the second cell stops monitoring the PDCCH for scheduling data of the third cell; The start time of the PDCCH for scheduling data of the third cell is monitored.
  • the terminal device is not configured with minimum K0, the terminal device reports searchSpaceSwitchingDelay-r16 to the access network device, and the access network device sends the switching capability P switch according to the searchSpaceSwitchingDelay-r16.
  • the terminal device determines, according to the end time of the DCI and the switch time of the search space set, the time at which at least one USS on the first cell stops monitoring the PDCCH used to schedule the data of the third cell, or determines the time when at least one USS on the second cell stops monitoring the PDCCH for scheduling data of the third cell.
  • the start time of the PDCCH used to schedule the data of the third cell is monitored.
  • the terminal device determines, according to the DCI and the configured minimum K0, the time at which at least one USS on the first cell is to stop monitoring the PDCCH used to schedule the data of the third cell, or determines to monitor at least one USS on the second cell.
  • the start time of the PDCCH used to schedule the data of the third cell is not limited to the DCI and the configured minimum K0.
  • the terminal device is configured with minimum K0, the terminal device does not report searchSpaceSwitchingDelay-r16 to the access network device, and the access network device does not deliver the switching capability P switch .
  • the terminal device determines the time to stop monitoring the PDCCH used for scheduling the data of the third cell by at least one USS on the first cell, or determines the time to monitor the PDCCH on at least one USS on the second cell. The start time of the PDCCH for scheduling the data of the third cell.
  • the terminal device determines, according to the larger one of the configured minimum K0 and the search space group switching time, the time at which at least one USS on the first cell is to stop monitoring the PDCCH used to schedule the data of the third cell, or determines when The start time of the PDCCH for scheduling data of the third cell is monitored on at least one USS on the second cell.
  • the terminal device is configured with minimum K0, the terminal device reports searchSpaceSwitchingDelay-r16 to the access network device, and the access network device delivers the switching capability P switch .
  • the terminal device determines the time at which the at least one USS on the first cell stops monitoring the PDCCH used for scheduling data of the third cell according to the larger one of the minimum K0 and the search space group switching time, or determines the time when the second cell stops monitoring the PDCCH for data of the third cell.
  • the start time of the PDCCH for scheduling data of the third cell is monitored on at least one USS of the third cell.
  • scene a2 scene a5, scene b2, scene b5, scene c2 and scene d2
  • S303b can be specifically:
  • the terminal device determines, according to the effective time of the BWP handover in the first cell, the start time of monitoring the PDCCH used to schedule the data of the third cell on at least one USS in the second cell; wherein, the indication of the BWP handover There is no first USS on the indicated BWP to be handed over, and the first USS is a USS that includes a PDCCH candidate that can carry the PDCCH that schedules the data of the third cell.
  • S303b may specifically be:
  • the terminal device determines the time to stop at least one USS on the first cell from monitoring the PDCCH used to schedule the data of the third cell, or determines to monitor the PDCCH on at least one USS on the second cell.
  • the time specified in the protocol is related to the DCI parsing time.
  • the terminal device is not configured with minimum K0 and searchSpaceSwitchingDelay-r16, and the terminal device determines the at least one USS that stops on the first cell according to the end time of the DCI and the first time slot after the time slot to which the protocol specified time belongs. The time to monitor the PDCCH for scheduling data for the third cell, or to determine the start time for monitoring the PDCCH for scheduling data for the third cell on at least one USS on the second cell.
  • the terminal device determines, according to the effective time of the DCI and BWP handover, the time for stopping at least one USS in the first cell from monitoring the PDCCH used to schedule the data of the third cell, or determines the time for at least one USS in the second cell to monitor the PDCCH of the third cell.
  • the start time of the PDCCH for scheduling data of the third cell is monitored.
  • the terminal device is not configured with minimum K0, the terminal device reports searchSpaceSwitchingDelay-r16 to the access network device, and the access network device delivers the switching capability P switch according to the searchSpaceSwitchingDelay-r16.
  • the terminal device determines, according to the end time of the DCI and the effective time of the BWP handover, the time at which the at least one USS on the first cell stops monitoring the PDCCH used for scheduling the data of the third cell, or determines at least one USS on the second cell. The start time of the PDCCH used to schedule the data of the third cell is monitored.
  • the terminal device determines, according to the DCI and the configured minimum K0, the time at which at least one USS on the first cell is to stop monitoring the PDCCH used to schedule the data of the third cell, or determines to monitor at least one USS on the second cell.
  • the start time of the PDCCH used to schedule the data of the third cell is not limited to the DCI and the configured minimum K0.
  • the terminal device is configured with minimum K0, the terminal device does not report searchSpaceSwitchingDelay-r16 to the access network device, and the access network device does not deliver the switching capability P switch .
  • the terminal device determines the time to stop monitoring the PDCCH used for scheduling the data of the third cell by at least one USS on the first cell, or determines the time to monitor the PDCCH on at least one USS on the second cell. The start time of the PDCCH for scheduling the data of the third cell.
  • the terminal device determines, according to the configured minimum K0 and the effective time of the BWP handover, the time at which at least one USS on the first cell stops monitoring the PDCCH used to schedule the data of the third cell, or determines at least one USS on the second cell.
  • the start time of the PDCCH for scheduling data of the third cell is monitored on one USS.
  • the terminal device is configured with minimum K0, the terminal device reports searchSpaceSwitchingDelay-r16 to the access network device, and the access network device delivers the switching capability P switch .
  • the terminal device determines the time for stopping at least one USS in the first cell from monitoring the PDCCH used to schedule the data of the third cell, or determines to monitor at least one USS in the second cell. The start time of the PDCCH used to schedule the data of the third cell.
  • S303b can be specifically:
  • the terminal device determines the start time of monitoring the PDCCH used to schedule data of the third cell on at least one USS in the second cell according to the effective time when the first cell is a dormant cell; For the effective time of the non-sleep cell, determine the time for stopping at least one USS on the first cell from monitoring the PDCCH for scheduling data of the third cell.
  • S303b may specifically be:
  • the terminal device determines the time to stop at least one USS on the first cell from monitoring the PDCCH used to schedule the data of the third cell, or determines to monitor the PDCCH on at least one USS on the second cell.
  • the time specified in the protocol is related to the DCI parsing time.
  • the terminal device is not configured with minimum K0 and searchSpaceSwitchingDelay-r16, and the terminal device determines the at least one USS that stops on the first cell according to the end time of the DCI and the first time slot after the time slot to which the protocol specified time belongs. The time to monitor the PDCCH for scheduling data for the third cell, or to determine the start time for monitoring the PDCCH for scheduling data for the third cell on at least one USS on the second cell.
  • the terminal device determines the time to stop at least one USS on the first cell from monitoring the PDCCH used to schedule the data of the third cell according to the DCI and the effective time of the dormant cell/non-dormant cell, or determines the time when the PDCCH on the second cell is stopped.
  • the start time of the PDCCH for scheduling data of the third cell is monitored on at least one USS.
  • the terminal device is not configured with minimum K0, the terminal device reports searchSpaceSwitchingDelay-r16 to the access network device, and the access network device delivers the switching capability P switch according to the searchSpaceSwitchingDelay-r16.
  • the terminal device determines, according to the end time of the DCI and the effective time of the dormant cell/non-dormancy cell, the time to stop at least one USS on the first cell from monitoring the PDCCH used to schedule the data of the third cell, or determine the time on the second cell
  • the start time of the PDCCH for scheduling data of the third cell is monitored on at least one USS of the third cell.
  • the terminal device determines, according to the DCI and the configured minimum K0, the time at which at least one USS on the first cell is to stop monitoring the PDCCH used to schedule the data of the third cell, or determines to monitor at least one USS on the second cell.
  • the start time of the PDCCH used to schedule the data of the third cell is not limited to the DCI and the configured minimum K0.
  • the terminal device is configured with minimum K0, the terminal device does not report searchSpaceSwitchingDelay-r16 to the access network device, and the access network device does not deliver the switching capability P switch .
  • the terminal device determines the time to stop monitoring the PDCCH used for scheduling the data of the third cell by at least one USS on the first cell, or determines the time to monitor the PDCCH on at least one USS on the second cell. The start time of the PDCCH for scheduling the data of the third cell.
  • the terminal device determines the time to stop at least one USS on the first cell from monitoring the PDCCH used to schedule the data of the third cell, or to determine the time when the second The start time of the PDCCH for scheduling data of the third cell is monitored on at least one USS on the cell.
  • the terminal device is configured with minimum K0, the terminal device reports searchSpaceSwitchingDelay-r16 to the access network device, and the access network device delivers the switching capability P switch .
  • the terminal device determines the time to stop at least one USS on the first cell from monitoring the PDCCH used to schedule the data of the third cell, or determines at least one USS on the second cell. The start time of the PDCCH for scheduling data of the third cell is monitored on one USS.
  • scene a4 scene a6, scene b4, scene b6, scene c4 and scene d4
  • S303b can be specifically:
  • the terminal device determines the start time of monitoring the PDCCH used to schedule the data of the third cell on at least one USS on the second cell according to the time when the search space set is switched on the first cell; wherein, the search space set There is no USS in the set of search spaces to be indicated by the handover indication.
  • S303b may specifically be:
  • the terminal device determines the time at which at least one USS on the first cell is to stop monitoring the PDCCH used to schedule data of the third cell according to the switching time of the DCI and the search space set, or determines at least one USS on the second cell. The start time of the PDCCH used to schedule the data of the third cell is monitored.
  • the terminal device is not configured with minimum K0, the terminal device reports searchSpaceSwitchingDelay-r16 to the access network device, and the access network device delivers the switching capability P switch according to the searchSpaceSwitchingDelay-r16.
  • the terminal device determines, according to the end time of the DCI and the time when the search space set is switched, the time at which at least one USS on the first cell stops monitoring the PDCCH used to schedule the data of the third cell, or at least one USS on the second cell. The start time of the PDCCH for scheduling data of the third cell is monitored on the USS.
  • the terminal device determines the time at which at least one USS on the first cell is stopped to monitor the PDCCH used to schedule the data of the third cell according to the configured minimum K0 and the time when the search space set is switched, or determines the time of the PDCCH on the second cell.
  • the start time of the PDCCH for scheduling data of the third cell is monitored on at least one USS.
  • the terminal device is configured with minimum K0, the terminal device reports searchSpaceSwitchingDelay-r16 to the access network device, and the access network device delivers the switching capability P switch .
  • the terminal device determines, according to the minimum K0 and the time when the search space set is switched, the time at which at least one USS on the first cell stops monitoring the PDCCH used for scheduling data of the third cell, or determines the time when at least one USS on the second cell stops monitoring the PDCCH for scheduling data of the third cell.
  • the start time of the PDCCH for scheduling data of the third cell is monitored.
  • the terminal device determines the time for stopping at least one USS on the first cell from monitoring the PDCCH used for scheduling data of the third cell, or determines to monitor the time on at least one USS on the second cell.
  • the start time of the PDCCH used to schedule the data of the third cell thereby ensuring efficient handover between the two cells and reducing the impact on the scheduling of the first cell.
  • each network element for example, an access network device and a terminal device, includes at least one of a hardware structure and a software module corresponding to executing each function in order to implement the above-mentioned functions.
  • a hardware structure for example, an access network device and a terminal device
  • a software module corresponding to executing each function in order to implement the above-mentioned functions.
  • the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
  • the access network device and the terminal device may be divided into functional units according to the foregoing method examples.
  • each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. middle.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and other division methods may be used in actual implementation.
  • FIG. 5 shows a possible schematic diagram of the structure of the communication device (referred to as the communication device 50 ) involved in the above embodiment, and the communication device 80 includes a processing unit 501 and a communication unit 502 , and may also include a storage unit 503 .
  • the schematic structural diagram shown in FIG. 5 may be used to illustrate the structures of the access network device and the terminal device involved in the foregoing embodiment.
  • the processing unit 501 is used to control and manage the actions of the terminal device, for example, control the terminal device to perform S302a, S302c and S303a, S302a, S302c, S303a and S303b in FIG. 4 , and/or actions performed by the terminal device in other processes described in the embodiments of this application.
  • the processing unit 501 may communicate with other network entities through the communication unit 502, for example, with the access network device shown in FIG. 1 .
  • the storage unit 503 is used to store program codes and data of the terminal device.
  • the communication apparatus 50 may be the terminal equipment, or may be a chip in the terminal equipment.
  • the processing unit 501 is configured to control and manage the actions of the access network device, for example, control the access network device to execute Actions performed by the terminal device in S301a, S302b, and S304 in FIG. 3, S301a, S301b, S302b, and S304 in FIG. 4, and/or other processes described in the embodiments of this application.
  • the processing unit 801 may communicate with other network entities through the communication unit 502, for example, with the terminal device shown in FIG. 1 .
  • the storage unit 503 is used for storing program codes and data of the access network equipment.
  • the communication apparatus 50 may be the access network equipment, or may be a chip in the access network equipment.
  • the processing unit 501 may be a processor or a controller, and the communication unit 502 may be a communication interface, a transceiver, a transceiver, a transceiver circuit, a transceiver device, and the like.
  • the communication interface is a general term, which may include one or more interfaces.
  • the storage unit 503 may be a memory.
  • the processing unit 501 may be a processor or a controller, and the communication unit 502 may be an input interface and/or an output interface, pins or circuits.
  • the storage unit 503 may be a storage unit (for example, a register, a cache, etc.) in the chip, or a storage unit (for example, a read-only memory, a read-only memory, a terminal device or an access network device) located outside the chip. referred to as ROM), random access memory (random access memory, referred to as RAM), etc.).
  • ROM read-only memory
  • RAM random access memory
  • the communication unit may also be referred to as a transceiver unit.
  • the antenna and control circuit with the transceiver function in the communication device 50 may be regarded as the communication unit 502 of the communication device 50
  • the processor with the processing function may be regarded as the processing unit 501 of the communication device 50 .
  • the device in the communication unit 502 for implementing the receiving function may be regarded as a receiving unit, the receiving unit is configured to perform the receiving steps in the embodiments of the present application, and the receiving unit may be a receiver, a receiver, a receiving circuit, or the like.
  • each step in the method provided in this embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software.
  • the steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • the processor in this application may include, but is not limited to, at least one of the following: a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), a microcontroller (MCU), or Artificial intelligence processors and other types of computing devices that run software, each computing device may include one or more cores for executing software instructions to perform operations or processing.
  • the processor can be a separate semiconductor chip, or can be integrated with other circuits into a semiconductor chip. For example, it can form a SoC (on-chip) with other circuits (such as codec circuits, hardware acceleration circuits, or various bus and interface circuits).
  • the processor may further include necessary hardware accelerators, such as field programmable gate arrays (FPGA), PLDs (Programmable Logic Devices) , or a logic circuit that implements dedicated logic operations.
  • FPGA field programmable gate arrays
  • PLD Programmable Logic Devices
  • the memory in this embodiment of the present application may include at least one of the following types: read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory) , RAM) or other types of dynamic storage devices that can store information and instructions, and can also be electrically erasable programmable read-only memory (Electrically erasable programmable read-only memory, EEPROM).
  • ROM read-only memory
  • RAM random access memory
  • EEPROM electrically erasable programmable read-only memory
  • the memory may also be compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.) , a magnetic disk storage medium or other magnetic storage device, or 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, without limitation.
  • CD-ROM compact disc read-only memory
  • optical disc storage including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.
  • magnetic disk storage medium or other magnetic storage device or 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, without limitation.
  • Embodiments of the present application further provide a computer-readable storage medium, including instructions, which, when executed on a computer, cause the computer to execute any of the foregoing methods.
  • Embodiments of the present application also provide a computer program product containing instructions, which, when run on a computer, enables the computer to execute any of the above methods.
  • An embodiment of the present application further provides a communication system, including: the above-mentioned access network device and a terminal device.
  • An embodiment of the present application further provides a chip, the chip includes a processor and an interface circuit, the interface circuit is coupled to the processor, the processor is used to run a computer program or instructions to implement the above method, and the interface circuit is used to connect with the processor. communicate with other modules outside the chip.

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Abstract

本申请实施例提供的一种跨载波调度方法、终端设备和接入网设备，该方法中终端设备在第一小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH时，接收第一指示信息，终端设备根据该第一指示信息，停止在第一小区的至少一个USS监测用于调度第三小区的数据的PDCCH，并确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH，从而可以实现高效的在两个小区上的USS之间进行切换。

Description

跨载波调度方法、终端设备和接入网设备 技术领域
本申请涉及通信技术领域，尤其涉及一种跨载波调度方法、终端设备和接入网设备。
背景技术
在第五代移动通信技术(5th generation mobile networks或5th generation wireless systems、5th-Generation，简称5G或5G技术)标准Re1-15版和Re1-16版中，跨载波调度是指一个载波调度另一个载波，即在一个载波上发送用于调度另一个载波的数据传输的物理下行控制信道(physical downlink control channel，PDCCH)，例如，主小区(primary cell，PCell)的载波调度辅小区(secondary cell，SCell)的载波，或者一个辅小区SCell的载波调度另一个辅小区SCell的载波。为了缓解主小区PCell上的控制信道负载，目前5G正在讨论新的技术，例如，辅小区SCell的载波可以调度主小区PCell的载波。但是，在某一个时间上SCell和PCell中只有一个小区可以有有效的用于调度PCell的UE特定搜索空间(ue-specific search space，USS)，如何高效的在两个小区的带宽部分(bandwidth part，BWP)上的USS之间进行切换成为一个亟待解决的问题。
发明内容
本申请实施例提供一种跨载波调度方法、终端设备和接入网设备，以实现高效的在两个小区的BWP上的USS之间进行切换。
为达到上述目的，本申请实施例采用如下技术方案。
第一方面，本申请实施例提供一种跨载波调度方法，该方法包括：终端设备在第一小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH，接收第一指示信息，第一指示信息用于确定停止在第一小区的至少一个USS上监测用于调度第三小区的数据的PDCCH，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH，第三小区为第一小区或第二小区；终端设备根据第一指示信息，停止在第一小区的至少一个USS上监测用于调度第三小区的数据的PDCCH，并确定在第二小区上的至少一个USS上上监测用于调度第三小区的数据的PDCCH，从而达到高效的在两个小区上的USS之间进行切换。
结合第一方面，在一种可能的实现方式中，第一指示信息包括以下指示中的至少一种：去激活第一小区的指示；在第一小区上的BWP切换的指示，其中，BWP切换的指示所指示要切换到的BWP上没有第一USS，第一USS为包含可承载调度第一小区的数据的PDCCH的PDCCH候选的USS；配置第一小区为休眠小区的指示；在第一小区上的搜索空间集切换的指示，其中，搜索空间集切换的指示所要指示要切换到的搜索空间集中没有第一USS。
结合第一方面，在一种可能的实现方式中，第一指示信息包括以下指示中的至少一种：激活第二小区的指示，其中，激活后的第二小区的搜索空间集中有第一USS，第 一USS为包含可承载调度第一小区的数据的PDCCH的PDCCH候选的USS；在第二小区上的BWP切换的指示，其中，BWP切换的指示所指示要切换到的BWP上有第一USS；配置第二小区为非休眠小区的指示，其中，非休眠后的第二小区的搜索空间集中有第一USS；在第二小区上发生搜索空间集切换的指示，其中，搜索空间集切换的指示所要指示要切换到的搜索空间集中有第一USS。
结合第一方面，在一种可能的实现方式中，第一指示信息包含第一类指示信息和第二类指示信息，第一类指示信息用于确定在第二小区上属于第一USS的第一套USS上监测用于调度第三小区的数据的PDCCH，第二类指示信息用于确定在第二小区上属于第一USS的第二套USS上监测用于调度第三小区的数据的PDCCH。
结合第一方面，在一种可能的实现方式中，本申请实施例提供的跨载波调度方法还包括：终端设备根据第一指示信息，确定停止在第一小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
结合第一方面，在一种可能的实现方式中，当第一指示信息承载在RRC信令或者MAC-CE中时，终端设备根据第一指示信息，确定停止在第一小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间，具体为：终端设备根据第一小区的去激活的生效时间，确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间；或者，终端设备根据第二小区的激活的生效时间，确定停止在第一小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的时间。
结合第一方面，在一种可能的实现方式中，当第一指示信息承载在下行控制信息DCI中时，终端设备根据第一指示信息，确定停止在第一小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间，具体为：终端设备根据DCI和协议规定时间，确定停止在第一小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间；或者，终端设备根据DCI和搜索空间集切换时间，确定停止在第一小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间；或者，终端设备根据DCI和配置的minimum K0，确定停止在第一小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间；或者，终端设备根据配置的minimum K0和搜索空间组切换时间中的较大的一个，确定停止在第一小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
结合第一方面，在一种可能的实现方式中，终端设备根据第一指示信息，确定停止在第一小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的时间，或 确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间，具体为：终端设备根据在第一小区上的BWP切换的生效时间，确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间；其中，BWP切换的指示所指示要切换到的BWP上没有第一USS，第一USS为包含可承载调度第三小区的数据的PDCCH的PDCCH候选的USS；或者，终端设备根据在第二小区上的BWP切换的生效时间，确定停止在第一小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的时间；其中，BWP切换的指示所指示要切换到的BWP上有第一USS，第一USS为包含可承载调度第三小区的数据的PDCCH的PDCCH候选的USS。
结合第一方面，在一种可能的实现方式中，终端设备根据第一指示信息，确定停止在第一小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间，具体为：终端设备根据第一小区为休眠小区的生效时间，确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间；或者，终端设备根据第二小区为非休眠小区的生效时间，确定停止在第一小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的时间。
结合第一方面，在一种可能的实现方式中，终端设备根据第一指示信息，确定停止在第一小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间，具体为：终端设备根据在第一小区上的搜索空间集切换的时间，确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间；其中，搜索空间集切换的指示所要指示要切换到的搜索空间集中没有第一USS；或者，终端设备根据在第二小区上的搜索空间集切换的时间，确定停止在第一小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的时间；其中，搜索空间集切换的指示所要指示要切换到的搜索空间集中有第一USS。
本申请实施例通过针对不同的场景，终端设备确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间，从而保证两小区间高效切换，减小对第一小区的调度的影响。
第二方面，本申请实施例提供一种跨载波调度方法，该方法包括：接入网设备确定停止在第一小区的至少一个USS发送调度第三小区的数据的PDCCH，并确定在第二小区上的至少一个第一USS上发送用于调度第三小区的数据的PDCCH，第三小区为第一小区或第二小区；接入网设备向终端设备发送第一指示信息；其中，第一指示信息用于指示终端设备确定停止在第一小区的至少一个USS上监测用于调度第三小区的数据的PDCCH，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH，从而达到高效的在两个小区上的USS之间进行切换。
结合第二方面，在一种可能的实现方式中，第一指示信息包括以下指示中的至少一种：去激活第一小区的指示；在第一小区上的BWP切换的指示，其中，BWP切换的指示所指示要切换到的BWP上没有第一USS，第一USS为包含可承载调度第一小区 的数据的PDCCH的PDCCH候选的USS；配置第一小区为休眠小区的指示；在第一小区上的搜索空间集切换的指示，其中，搜索空间集切换的指示所要指示要切换到的搜索空间集中没有第一USS。
结合第二方面，在一种可能的实现方式中，第一指示信息包括以下指示中的至少一种：激活第二小区的指示，其中，激活后的第二小区的搜索空间集中有第一USS，第一USS为包含可承载调度第一小区的数据的PDCCH的PDCCH候选的USS；在第二小区上的BWP切换的指示，其中，BWP切换的指示所指示要切换到的BWP上有第一USS；配置第二小区为非休眠小区的指示，其中，非休眠后的第二小区的搜索空间集中有第一USS；在第二小区上发生搜索空间集切换的指示，其中，搜索空间集切换的指示所要指示要切换到的搜索空间集中有第一USS。
结合第二方面，在一种可能的实现方式中，第一指示信息包含第一类指示信息和第二类指示信息，第一类指示信息用于指示终端设备确定在第二小区上属于第一USS的第一套USS上监测用于调度第三小区的数据的PDCCH，第二类指示信息用于指示终端设备确定在第二小区上属于第一USS的第二套USS上监测用于调度第三小区的数据的PDCCH。
结合第二方面，在一种可能的实现方式中，本申请提供的跨载波调度方法还包括：接入网设备根据第一指示信息，确定停止在第一小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的开始时间。
结合第二方面，在一种可能的实现方式中，当第一指示信息承载在RRC信令或者MAC-CE中时，接入网设备根据第一指示信息，确定停止在第一小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的开始时间，具体为：接入网设备根据第一小区的去激活的生效时间，确定在第二小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的开始时间；或者，接入网设备根据第二小区的激活的生效时间，确定停止在第一小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的时间。
结合第二方面，在一种可能的实现方式中，当第一指示信息承载在下行控制信息DCI中时，接入网设备根据第一指示信息，确定停止在第一小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的开始时间，具体为：接入网设备根据DCI和协议规定时间，确定停止在第一小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的开始时间；或者，接入网设备根据DCI和搜索空间集切换时间，确定停止在第一小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的开始时间；或者，接入网设备根据DCI和配置的minimum K0，确定停止在第一小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的开始时间；或 者，接入网设备根据配置的minimum K0和搜索空间组切换时间中的较大的一个，确定停止在第一小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的开始时间。
结合第二方面，在一种可能的实现方式中，接入网设备根据第一指示信息，确定停止在第一小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的开始时间，具体为：接入网设备根据在第一小区上的BWP切换的生效时间，确定在第二小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的开始时间；其中，BWP切换的指示所指示要切换到的BWP上没有第一USS，第一USS为包含可承载调度第三小区的数据的PDCCH的PDCCH候选的USS；或者，接入网设备根据在第二小区上的BWP切换的生效时间，确定停止在第一小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的时间；其中，BWP切换的指示所指示要切换到的BWP上有第一USS，第一USS为包含可承载调度第三小区的数据的PDCCH的PDCCH候选的USS。
结合第二方面，在一种可能的实现方式中，接入网设备根据第一指示信息，确定停止在第一小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的开始时间，具体为：接入网设备根据第一小区为休眠小区的生效时间，确定在第二小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的开始时间；或者，接入网设备根据第二小区为非休眠小区的生效时间，确定停止在第一小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的时间。
结合第二方面，在一种可能的实现方式中，接入网设备根据第一指示信息，确定停止在第一小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的开始时间，具体为：接入网设备根据在第一小区上的搜索空间集切换的时间，确定在第二小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的开始时间；其中，搜索空间集切换的指示所要指示要切换到的搜索空间集中没有第一USS；或者，接入网设备根据在第二小区上的搜索空间集切换的时间，确定停止在第一小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的时间；其中，搜索空间集切换的指示所要指示要切换到的搜索空间集中有第一USS。
本申请实施例通过针对不同的场景，终端设备确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间，从而保证两小区间高效切换，减小对第一小区的调度的影响。
第三方面，本申请提供了一种通信装置，包括：处理器和存储介质；至少一个处理器和接口电路，接口电路用于接收来自通信装置之外的其它通信装置的信号并传输至处理器或将来自处理器的信号发送给通信装置之外的其它通信装置，处理器通过逻辑电路或执行代码指令用于实现如第一方面和第一方面的任一种可能的实现方式中所 描述的方法。该通信装置可以是终端设备，也可以是终端设备中的芯片。
第四方面，本申请提供了一种通信装置，包括：处理器和存储介质；至少一个处理器和接口电路，接口电路用于接收来自通信装置之外的其它通信装置的信号并传输至处理器或将来自处理器的信号发送给通信装置之外的其它通信装置，处理器通过逻辑电路或执行代码指令用于实现如第二方面和第二方方面的任一种可能的实现方式中所描述的方法。该通信装置可以是接入网设备，也可以是接入网络设备中的芯片。
第五方面，本申请提供一种通信系统，包括第一通信装置和第二通信装置。其中，第一通信装置用于执行如第一方面和第一方面的任一种可能的实现方式中所描述的方法；第二通信装置用于执行如第二方面和第二方面的任一种可能的实现方式中所描述的方法。
第六方面，本申请提供了一种计算机可读存储介质，计算机可读存储介质中存储有指令，当该指令在计算机上运行时，使得计算机执行如第一方面和第一方面的任一种可能的实现方式中所描述的方法。
第七方面，本申请提供了一种计算机可读存储介质，计算机可读存储介质中存储有指令，当该指令在计算机上运行时，使得计算机执行如第二方面和第二方面的任一种可能的实现方式中所描述的方法。
第八方面，本申请提供一种包含指令的计算机程序产品，当该计算机程序产品在计算机上运行时，使得计算机执行如第一方面和第一方面的任一种可能的实现方式中所描述的方法。
第九方面，本申请提供一种包含指令的计算机程序产品，当该计算机程序产品在计算机上运行时，使得计算机执行如第二方面和第二方面的任一种可能的实现方式中所描述的方法。
应当理解的是，本申请中对技术特征、技术方案、有益效果或类似语言的描述并不是暗示在任意的单个实施例中可以实现所有的特点和优点。相反，可以理解的是对于特征或有益效果的描述意味着在至少一个实施例中包括特定的技术特征、技术方案或有益效果。因此，本说明书中对于技术特征、技术方案或有益效果的描述并不一定是指相同的实施例。进而，还可以任何适当的方式组合本实施例中所描述的技术特征、技术方案和有益效果。本领域技术人员将会理解，无需特定实施例的一个或多个特定的技术特征、技术方案或有益效果即可实现实施例。在其他实施例中，还可在没有体现所有实施例的特定实施例中识别出额外的技术特征和有益效果。
附图说明
图1为本申请实施例应用的移动通信系统的架构示意图；
图2为本申请实施例提供的接入网设备和终端设备的硬件结构示意图；
图3为本申请实施例提供的一种跨载波调度方法的流程图；
图4为本申请实施例提供的又一种跨载波调度方法的流程图；
图5本申请实施例提供的一种通信装置的结构示意图。
具体实施方式
在本申请的描述中，除非另有说明，“/”表示“或”的意思，例如，A/B可以表示A或B。本文中的“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三 种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。此外，“至少一个”是指一个或多个，“多个”是指两个或两个以上。“第一”、“第二”等字样并不对数量和执行次序进行限定，并且“第一”、“第二”等字样也并不限定一定不同。
以下，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
本申请实施例提供的跨载波调度方法，应用于如图1所示的移动通信系统100中。
图1是本申请的实施例应用的移动通信系统的架构示意图。如图1所示，该移动通信系统100包括核心网设备110、接入网设备120和至少一个终端设备(如图1中的终端设备130和终端设备140)。终端设备通过无线的方式与接入网设备120相连，接入网设备120通过无线或有线方式与核心网设备110连接。核心网设备110与接入网设备120可以是独立的不同的物理设备，也可以是将核心网设备110的功能与接入网设备120的逻辑功能集成在同一个物理设备上，还可以是一个物理设备上集成了部分核心网设备的功能和部分的接入网设备的功能。终端设备可以是固定位置的，也可以是可移动的。图1只是示意图，该通信系统中还可以包括其它网络设备，如还可以包括无线中继设备和无线回传设备，在图1中未画出。本申请的实施例对该移动通信系统中包括的核心网设备、无线接入网设备和终端设备的数量不做限定。
接入网设备120是终端设备通过无线方式接入到该移动通信系统中的接入设备，可以是基站NodeB、演进型基站eNodeB、NR移动通信系统中的基站、未来移动通信系统中的基站或WiFi系统中的接入节点等，本申请的实施例对无线接入网设备所采用的具体技术和具体设备形态不做限定。
终端设备也可以称为终端Terminal、用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)等。
接入网设备和终端设备可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上；还可以部署在空中的飞机、气球和人造卫星上。本申请的实施例对接入网设备和终端设备的应用场景不做限定。
本申请的实施例可以适用于下行信号传输，也可以适用于上行信号传输，还可以适用于设备到设备(device to device，D2D)的信号传输。对于下行信号传输，发送设备是接入网设备，对应的接收设备是终端设备。对于上行信号传输，发送设备是终端设备，对应的接收设备是接入网设备。对于D2D的信号传输，发送设备是终端设备，对应的接收设备也是终端设备。本申请的实施例信号的传输方向不做限定。
接入网设备和终端设备之间以及终端设备和终端设备之间可以通过授权频谱(licensed spectrum)进行通信，也可以通过免授权频谱(unlicensed spectrum)进行通信，也可以同时通过授权频谱和免授权频谱进行通信。无线接入网设备和终端设备之间以及终端设备和终端设备之间可以通过6GHz、以下的频谱进行通信，也可以通过6GHz以上的频谱进行通信，还可以同时使用6GHz以下的频谱和6GHz以上的频谱进行通信。本申请的实施例对接入网设备和终端设备之间所使用的频谱资源不做限定。
如图2所示，为本申请实施例提供的接入网设备和终端设备的硬件结构示意图。
终端设备130(140)包括至少一个处理器301、至少一个存储器302、至少一个收发器303。可选的，终端设备30还可以包括输出设备304和输入设备305。
处理器301、存储器302和收发器303通过总线相连接。处理器301可以是一个通用中央处理器(Central Processing Unit，CPU)、微处理器、特定应用集成电路(Application-Specific Integrated Circuit，ASIC)，或者一个或多个用于控制本申请方案程序执行的集成电路。处理器301也可以包括多个CPU，并且处理器301可以是一个单核(single-CPU)处理器或多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路或用于处理数据(例如计算机程序指令)的处理核。
存储器302可以是只读存储器(Read-Only Memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备、随机存取存储器(Random Access Memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(Electrically Erasable Programmable Read-Only Memory，EEPROM)、只读光盘(Compact Disc Read-Only Memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器302可以是独立存在，通过总线与处理器301相连接。存储器302也可以和处理器301集成在一起。其中，存储器302用于存储执行本申请方案的应用程序代码，并由处理器301来控制执行。处理器301用于执行存储器302中存储的计算机程序代码，从而实现本申请实施例中所述协同传输的方法。
收发器303可以使用任何收发器一类的装置，用于与其他设备或通信网络通信，如以太网、无线接入网(Radio Access Network，RAN)、无线局域网(Wireless Local Area Networks，WLAN)等。收发器303包括发射机Tx和接收机Rx。
输出设备304和处理器301通信，可以以多种方式来显示信息。例如，输出设备304可以是液晶显示器(Liquid Crystal Display，LCD)，发光二级管(Light Emitting Diode，LED)显示设备，阴极射线管(Cathode Ray Tube，CRT)显示设备，或投影仪(projector)等。输入设备305和处理器301通信，可以以多种方式接收用户的输入。例如，输入设备305可以是鼠标、键盘、触摸屏设备或传感设备等。
接入网设备120包括至少一个处理器201、至少一个存储器202、至少一个收发器203和至少一个网络接口204。处理器201、存储器202、收发器203和网络接口204通过总线相连接。其中，网络接口204用于通过链路(例如S1接口)与核心网设备连接，或者通过有线或无线链路(例如X2接口)与其它接入网设备的网络接口进行连接(图中未示出)，本申请实施例对此不作具体限定。另外，处理器201、存储器202和收发器203的相关描述可参考终端设备130中处理器301、存储器302和收发器303的描述，在此不再赘述。
为了使得本申请更加的清楚，首先对本申请涉及到的部分概念做简单介绍。
1、K0和Minimum K0
第三代移动通信标准化的合作伙伴项目的标准Re1-16版中提出跨时隙调度，以节 省终端设备的功耗。以下行为例，接入网设备通过物理下行控制信道(physical downlink control channel，PDCCH)向终端设备调度物理下行共享信道(physical downlink shared channel，PDSCH)。其中，PDCCH与被调度的PDSCH之间的时隙偏移为K0。
K0＝0表示PDCCH与被调度的PDSCH在同一个时隙。
K0﹥0表示PDCCH与被调度的PDSCH不在同一个时隙。
Minimum K0是指当跨时隙调度时，PDSCH的最小可用的时隙偏移，即PDCCH与被调度的PDSCH之间的时隙偏移值中最小可用的K0。
这里需要说明的是，若应用于LTE系统，该时隙实指LTE子帧。若应用于NR系统，该时隙即为NR时隙。
当有下行数据传输时，接入网设备通过PDCCH向终端设备调度PDSCH。终端设备会周期性的监测用于调度PDSCH的PDCCH。当minimum K0>0，终端设备只需要监测PDCCH，不需要缓存本时隙可能的PDSCH，从而节省终端设备的功耗。如果终端设备监测到PDCCH调度了PDSCH，则终端设备在PDCCH指示的K0的时隙接收PDSCH。
2、带宽部分(Bandwidth Part，BWP)及其切换
2.1、BWP的基本概念
在新无线(new radio，NR)中引入了带宽部分(bandwidth part，BWP)的概念。一个BWP是一个载波上的一段连续频率资源。
BWP的状态包括激活态和非激活态。其中，激活态是指可工作的状态。BWP处于激活态是指BWP处于可工作的状态，也可以描述为“激活的BWP”。例如，BWP可实现信号发送或接收。非激活态是与激活态相对应的一个概念，是指不可工作的状态。BWP处于非激活态是指BWP处于不可工作的状态，也可以描述为“非激活的BWP”或“去激活的BWP”。将BWP从非激活态转换为激活态的过程，或将不可工作的BWP转换为可工作的BWP的过程，均为激活BWP。相应的，将BWP从激活态转换为非激活态的过程，或将可工作的BWP转换为不可工作的BWP的过程，均为去激活BWP，也可以描述为对BWP执行去激活。
BWP可以分为下行BWP和上行BWP。接入网设备可以为终端设备配置多个DL BWP以及多个UL BWP，并且激活至少一个DL BWP和激活至少一个UL BWP，终端设备在激活的DL BWP(即active DL BWP)上接收接入网设备发送的下行传输。其中，终端设备在激活的UL BWP上发送上行传输。其中，上行传输包括但不限于：上行控制信令的传输，上行数据的传输和上行参考信号的传输。上行控制信令包括：正确应答(acknowledge，ACK)/错误应答(negative acknowledgement)，调度请求(scheduling request，SR)，信道状态信息(channel state information，CSI)。上行参考信号包括：解调参考信号(demodulation reference signals，DMRS)，相位跟踪参考信道(phase-tracking reference signals，PTRS)和探测参考信号(sounding reference signal，SRS)等。
2.2、BWP的切换
为使终端设备能够根据业务需要在不同时刻在不同的BWP上接收或发送数据，NR支持使用在调度数据的DCI中触发终端设备进行BWP切换。
BWP切换(switch)，用于切换激活的BWP。在现有标准中，终端设备在一个小区上工作时，只有一个激活的下行BWP(downlink BWP，DL BWP)和一个激活的上行BWP(uplink BWP，UL BWP)。但是激活的BWP可以变化，即称为“BWP切换”。比如，接入网设备为终端设备配置了两个DL BWP，分别为DL BWP1和DL BWP2。下行调度DCI format 1_1或DCI format 1_2中可以承载BWP切换指示。接入网设备可以向终端设备发送下行调度DCI format 1_1或DCI format 1_2，该调度DCI承载于物理下行控制信道PDCCH，通过该PDCCH传输。终端设备接收该调度DCI，并切换到该调度DCI指示的DL BWP上接收或发送数据。
而终端设备从一个BWP切换到另一个BWP需要一定的处理延时，该处理延时被称为T BWPswitchDelay。这个值的定义为：
如果终端设备在时隙n上收到了切换BWP的调度DCI，那么终端设备应在第n+T BWPswitchDelay时隙在切换后的BWP上具备发送PUSCH或者接收PDSCH的能力。根据终端设备能力的不同，NR定义了两种不同的处理延时type，如表1所示。
表1
Figure PCTCN2020123449-appb-000001
其中，μ是当前终端设备工作的子载波间隔参数，即终端设备工作的子载波间隔为2 μ·15kHz。终端设备(如UE)可以向接入网设备(如gNB)上报支持的BWP切换能力为type 1还是type 2。
3、搜索空间
3.1、搜索空间的基本概念
在NR中的PDCCH可以包含L＝{1,2,4,8,16}个控制信道单元(CCE：Control Channel Element)。其中，L称为PDCCH的聚合等级(AL：Aggregation Level)。一个CCE包含6个资源单元组(REG：Resource-Element Group)，每个REG对应于一个OFDM symbol上的一个RB。
一个PDCCH候选(PDCCH candidate)可以包含L＝{1,2,4,8,16}个控制信道单元，上面可能发送一个终端设备的PDCCH，也有可能不发送。终端设备可以对一个PDCCH候选进行检测，以确定是否存在终端设备自己的PDCCH。
接入网设备会给终端设备配置一个或多个搜索空间search space(或称为搜索空间集合search space set，可统一使用搜索空间来表述)。搜索空间中包含多个PDCCH候选，一个PDCCH候选上可能承载一个PDCCH，终端设备在PDCCH候选上盲检PDCCH。
3.2、搜索空间配置
搜索空间的配置如下：
searchSpaceId：搜索空间的标识；
controlResourceSetId：搜索空间关联的CORESET的标识，可以用来确定搜索空间的时频位置；
monitoringSlotPeriodicityAndOffset：搜索空间的周期和偏移，可以用来确定搜索空间时域位置；
nrofCandidates：每个AL的PDCCH candidate的个数；
searchSpaceType：指示了搜索空间类型。搜索空间集的类型有两种：公共搜索空间(CSS，Common Search Space)和UE特定搜索空间(USS：Ue-specific Search Space)。
3.3、跨载波调度时的搜索空间配置
在NR中支持的跨载波调度的搜索空间配置为：
nrofCandidates指示在关联的调度载波中的AL和PDCCH candidate的个数。
searchSpaceId指示了搜索空间的标识(在跨载波调度时，调度小区和被调度小区中相同searchSpaceId的searchspace互相关联)。
3.4、搜索空间组切换
在一个服务小区上，高层参数searchSpaceGroupIdList-r16可以给一个终端设备配置一个搜索空间组的标识，每个搜索空间组的标识对应一组Type3-PDCCH CSS set或者USS(其他的CSS set是一直监测的)。
高层参数searchSpaceSwitchingDelay-r16可以给一个终端设备配置切换能力P switch，该P switch的最小值如表2所示。目前协议中，高层参数searchSpaceGroupIdList-r16的取值最小为10，最大为52。终端设备可以上报自己支持的切换能力1或者切换能力2，不上报的话，默认为能力1。
表2
μ 切换能力1[符号] 切换能力2[符号]
0 25 10
1 25 12
2 25 22
其中，μ是当前终端设备工作的子载波间隔参数，即终端设备工作的子载波间隔为2 μ·15kHz。高层参数searchSpaceSwitchingTimer-r16可以给一个终端设备配置一个定时器值。每个参考SCSμ对应的slot，定时器值减1。当定时器减为0时，终端设备开始监测默认的一组搜索空间集上的PDCCH。
针对终端设备被配置或未被配置高层参数SearchSpaceSwitchTrigger-r16，终端设备切换监测搜索空间集上的PDCCH的实现方式可以为：
第一，如果一个终端设备被高层参数SearchSpaceSwitchTrigger-r16配置了DCI format 2_0中的搜索空间集组切换指示域的位置，DCI format 2_0可以指示搜索空间集组的切换方式如下：
如果DCI format 2_0中的搜索空间集组切换指示域的值为0，则在服务小区上，在承载该DCI format 2_0的PDCCH的符号与切换能力Pswitch的符号所属的时隙之后的第一个时隙slot，终端设备开始监测搜索空间组的标识为0的搜索空间集组上的PDCCH，停止监测搜索空间组的标识为1的搜索空间集组上的PDCCH。
如果DCI format 2_0中的搜索空间集组切换指示域的值为1，则在这个服务小区上，在承载该DCI format 2_0的PDCCH的符号与切换能力Pswitch的符号所属的时隙之后的第一个时隙slot，终端设备开始监测搜索空间组的标识为1的搜索空间集组上的PDCCH，停止监测搜索空间组的标识为0的搜索空间集组上的PDCCH。并且，终端设备将定时器值设置为searchSpaceSwitchingTimer-r16。
在一个服务小区上，终端设备正在监测搜索空间组的标识为1的搜索空间集组上的PDCCH，如果在一个slot上，定时器超时，则在该slot之后P switch符号所属的时隙之后的第一个slot上，终端设备开始监测搜索空间组的标识为0的搜索空间集组上的PDCCH，停止监测搜索空间组的标识为1的搜索空间集组上的PDCCH。
第二，如果对于一个服务小区，一个终端设备没有被配置高层参数earchSpaceSwitchTrigger-r16，搜索空间集组的切换方式如下：
如果终端设备在搜索空间组的标识为0的搜索空间集组上检测到PDCCH，则在这个服务小区上，在承载该DCI format的PDCCH的符号与切换能力P switch的符号所属的时隙之后的第一个slot，终端设备开始监测搜索空间组的标识为1的搜索空间集组上的PDCCH，停止监测搜索空间组的标识为0的搜索空间集组上的PDCCH。
在一个服务小区上，终端设备正在监测搜索空间组的标识为1的搜索空间集组上的PDCCH，如果在一个slot上，定时器超时，则在该slot之后P switch符号所属的时隙之后的第一个slot上，终端设备开始监测搜索空间组的标识为0的搜索空间集组上的PDCCH，停止监测搜索空间组的标识为1的搜索空间集组上的PDCCH。
4、载波聚合和辅载波的激活/去激活
4.1、双链接和载波聚合
双链接(DC，Dual connectivity)下，终端设备和多个小区建立链接，这些小区分为两组：主小区组(MCG，Master Cell Group)和辅小区组(SCG，Secondary Cell group)。如果没有进行双链接，那么和终端设备通信的一组小区就是MCG。
MCG中的多个小区通过载波聚合(CA，Carrier aggregation)技术联合在一起。SCG中的多个小区通过载波聚合(CA，Carrier aggregation)技术联合在一起。
MCG中的主小区是主小区(PCell，Primary Cell)，SCG中的主小区是主辅小区(PSCell，Primary Secondary Cell)，MCG和SCG中的其他小区是辅小区(SCell，Secondary Cell)。
4.2、载波激活和去激活
4.2.1、SCell的激活/去激活状态
1)一个激活的SCell包括如下一系列动作：
终端设备向接入网设备发送探测参考信号(sounding reference signal，SRS)；
终端设备上报这个SCell的信道状态信息(channel state information，CSI)；
终端设备检测用于该SCell和在该SCell上传输的PDCCH；
如果接入网设备为终端设备配置了在该载波上传输PUCCH，则接入网设备向终端设备发送PUCCH。
终端设备启动或重启sCellDeactivationTimer(SCell去激活定时器)，触发终端设备上报PHR；
2)当终端设备的MAC实体收到去激活一个SCell命令或这个SCell的sCellDeactivationTimer超时时，去激活这个SCell，或停止这个SCell的sCellDeactivationTimer，或刷新(清除)这个SCell上所有的HARQ buffer(混合自动重复请求缓冲器)。
3)如果一个SCell被去激活了，终端设备在对应的SCell内不发送SRS，不上报这个SCell的CSI，不传输上行数据，不检测用于该SCell和在该SCell上传输的PDCCH，不发送PUCCH。
4.2.2、SCell的激活/去激活指示
接入网设备给终端设备发送Activation/Deactivation MAC CE。终端设备根据该MAC CE中的信息确定SCell的激活和去激活状态。
对于通过该MAC CE确定的激活的SCell，终端设备还可以根据定时器去激活该SCell。
终端设备会为每个SCell维护一个去激活定时器sCellDeactivationTimer，对应某个终端设备的所有SCell，sCellDeactivationTimer的值是相同的。进一步地，该值可以配置成“infinity”，即去使能基于timer的SCell去激活，此时终端设备无法控制SCell的去激活。
对于一个SCell，当在去激活定时器指定的时间内，终端设备没有在该SCell上收到数据或PDCCH消息，则该SCell将去激活。这也是终端设备可以自动将某SCell去激活的唯一情况。
4.2.3、激活/去激活生效时间
如果收到一个在slot n结束的承载SCell激活命令的PDSCH，终端设备最早在slot n+k激活SCell，最晚在TS38.133定义的最小需求内激活SCell。
其中，k的取值是
Figure PCTCN2020123449-appb-000002
其中k 1指携带了接收到的PDSCH的HARQ-ACK信息PUCCH的传输slot序号，由调度PDSCH的DCI中的PDSCH-to-HARQ-timing-indicator字段指示。
Figure PCTCN2020123449-appb-000003
是PUCCH的SCS配置μ下，每个子帧中用的slot个数。
如果这个SCell关联的sCellDeactivationTimer在slot n超时，终端设备最晚在TS38.133定义的最小需求内去激活SCell。
综上，一个SCell激活时，终端设备最早在slot n+kl，最晚在TS38.133定义的最小需求开始检测用于该SCell和在该SCell上传输的PDCCH；一个SCell去激活时，终端设备最早在slot n，最晚在TS38.133定义的最小需求开始不检测用于该SCell和在该SCell上传输的PDCCH。
5、载波休眠
5.1、载波休眠/非休眠的指示
3GPP Rel-16引入SCell的载波Dormancy(休眠)机制。SCell的Dormancy(休眠)行为和non-dormancy(非休眠)行为之间的切换是通过BWP切换实现的。当某个SCell被指示为dormancy，那么在该SCell上终端设备将从当前下行激活的BWP切换到dormant BWP，在dormant BWP上终端设备不需要进行PDCCH检测，或者，在该SCell是跨载波调度中的被调度载波时，终端设备不需要检测对应的调度载波上的调度该 SCell的PDCCH。
SCell的Dormancy和non-dormancy(非休眠)之间的切换通过DCI指示，存在以下方式：
方式一：通过DCI format 0_1或者1_1中的SCell dormancy indication(辅载波休眠指示)域指示SCell是dormancy还是non-dormancy，DCI可以同时调度数据。网络通过参数SCell-groups-for-dormancy-within-active-time配置最多5个SCell group，SCell dormancy indication最多有5比特，每一个比特对应其中一个SCell group。当该bit指示为’0’，在对应的SCell group里的每一个激活的SCell上BWP都切换到dormant BWP，当该bit指示为’1’，如果在对应的SCell group里的每一个激活的SCell上终端设备正处于non-dormant BWP，那么终端设备继续工作在该non-dormant BWP上，如果终端设备正处于dormant BWP，那么终端设备切换到first non-dormant BWP。
方式二：通过DCI format 1_1中的特定域指示SCell是dormancy还是non-dormancy，DCI不可以同时调度数据。此种指示方法中，每一个比特对应一个SCell，用来指示每一个SCell是dormancy还是non-dormancy。
方式三：通过DCI format 2_6中的SCell dormancy indication(辅载波休眠指示)域指示SCell是dormancy还是non-dormancy。指示方式和方式一基本类似，区别在于DCI format 2_6为组公共DCI，可以向多个终端设备发送，不带数据调度。
5.2、载波休眠的生效时间
因为SCell的Dormancy和non-dormancy(非休眠)之间的切换是一种BWP切换，所以Dormancy和non-dormancy之间的切换生效时间和BWP的切换生效时间相同。
以上，为本申请实施例所涉及到的部分概念的简单介绍。
当前，在5G技术标准Re1-16版中，跨载波调度是指一个载波调度另一个载波。例如，主小区PCell的载波调度辅小区SCell的载波，或者一个辅小区SCell的载波调度另一个辅小区SCell的载波。为了缓解主小区PCell上的控制信道负载，辅小区SCell的载波可以调度主小区PCell的载波。
为了实现简单，有可能在对于SCell和PCell中只有一个小区可以有有效的用于调度PCell的USS。PCell上和SCell上的控制信道负载是随时间变化的，在一个时刻，可能是PCell上的控制信道负载高于SCell上的控制信道负载，而下一时刻，可能是SCell上的控制信道负载高于PCell上的控制信道负载。根据PCell上和SCell上的控制信道负载变化，可以选择其中负载较小的小区进行控制信道的发送。因此，如何高效的在两个小区的带宽部分(bandwidth part，BWP)上的USS之间进行切换成为一个亟待解决的问题。
为了达到高效的在两个小区的BWP上的USS之间进行切换，本申请实施例提供了一种跨载波调度方法，该方法中终端设备在第一小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH时，接收第一指示信息，终端设备根据该第一指示信息，停止在第一小区的至少一个USS监测用于调度第三小区的数据的PDCCH，并确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH。
以下实施例中的方法均可以在具有上述硬件结构的设备(如图1中的终端设备130和终端设备140)中实现。
图3为本申请实施例提供的一种跨载波调度方法的流程示意图。如图3所示，该方法可以包括：
S301a、接入网设备确定停止在第一小区的至少一个USS发送调度第三小区的数据的PDCCH，并确定在第二小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH。
其中，小区指的是逻辑上的为用户提供服务的区域。每个小区对应一个载波。
该第一小区可以是主小区PCell，第二小区可以是辅小区SCell。或者，第一小区可以是辅小区SCell，第二小区可以是主小区PCell。或者，第一小区可以是辅小区SCell，第二小区可以是另一个辅小区SCell。
针对第一小区所属类型不同，该第一指示信息的指示内容也不同。
例如，第一小区为PCell，则针对第一小区的第一指示信息包括BWP切换的指示或搜索空间集切换的指示。第一小区为SCell，则针对第一小区的第一指示信息可以包括激活/去激活SCell的指示，BWP切换的指示，搜索空间集切换的指示，休眠小区的指示和非休眠小区的指示中的一种或多种。当然，第一指示信息还可以包括其他指示，在此不再一一列举。
由于主小区PCell的配置BWP上可以配置至少一个包含可承载调度所述第一小区的数据的PDCCH的PDCCH候选的USS，辅小区SCell的配置BWP上也可以配置至少一个包含可承载调度所述第一小区的数据的PDCCH的PDCCH候选的USS。但是，主小区PCell和辅小区SCell中只有一个小区上的包含可承载调度所述第一小区的数据的PDCCH的PDCCH候选的USS处于工作状态。
因此，S301a具体为，接入网设备根据第一指示信息，确定在PCell的至少一个USS发送调度第三小区的数据的PDCCH，并确定停止在SCell上的至少一个USS发送用于调度第三小区的数据的PDCCH。
当然也可以是，接入网设备根据第一指示信息，确定在SCell的至少一个USS发送调度第三小区的数据的PDCCH，并确定停止在PCell上的至少一个USS发送调度第三小区的数据的PDCCH。
S302b、接入网设备向终端设备发送第一指示信息。
S302a、终端设备在第一小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH。
S302c、终端设备接收第一指示信息。
这里需要说明的是，终端设备处于在第一小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的状态，接收第一指示信息。换句话说，在终端设备接收第一指示信息之前，终端设备执行S302a。或者，在终端设备接收第一指示信息时，终端设备执行S302a。本申请实施例不做具体限定。
同上所述，该第一小区可以是主小区PCell，第二小区可以是辅小区SCell。或者，第一小区可以是辅小区SCell，第二小区可以是主小区PCell。或者，第一小区可以是辅小区SCell，第二小区可以是另一个辅小区SCell。
该第一指示信息用于确定停止在第一小区的至少一个USS监测用于调度第三小区的数据的PDCCH，或确定在第二小区上的至少一个USS上监测用于调度第三小区的 数据的PDCCH。
但针对第一小区所属的类型不同，第一指示信息的内容也相应不同。具体包括以下几类情况：
第一类，第一小区是辅小区SCell，第二小区是主小区PCell
该第一指示信息包括以下指示中的至少一种：
去激活SCell的指示；
在SCell上的BWP切换的指示，其中，BWP切换的指示所指示要切换到的BWP上没有第一USS，第一USS为包含可承载调度第三小区的数据的PDCCH的PDCCH候选的USS；
配置SCell为休眠小区的指示；
在SCell上的搜索空间集切换的指示，其中，搜索空间集切换的指示所要指示要切换到的搜索空间集中没有第一USS。
第二类，第一小区是辅小区SCell，第二小区是主小区PCell
该第一指示信息包括以下指示中的至少一种：
在PCell上的BWP切换的指示，其中，BWP切换的指示所指示要切换到的BWP上有第一USS，第一USS为包含可承载调度第三小区的数据的PDCCH的PDCCH候选的USS；
在PCell上的搜索空间集切换的指示，其中，搜索空间集切换的指示所要指示要切换到的搜索空间集中有第一USS。
第三类，第一小区是主小区PCell，第二小区是辅小区SCell
该第一指示信息包括以下指示中的至少一种：
激活SCell的指示；
在SCell上的BWP切换的指示，其中，BWP切换的指示所指示要切换到的BWP上有第一USS，第一USS为包含可承载调度第三小区的数据的PDCCH的PDCCH候选的USS；
配置SCell为非休眠小区的指示；
在SCell上的搜索空间集切换的指示，其中，搜索空间集切换的指示所要指示要切换到的搜索空间集中有第一USS。
第四类，第一小区是主小区PCell，第二小区是辅小区SCell
该第一指示信息包括以下指示中的至少一种：
在PCell上的BWP切换的指示，其中，BWP切换的指示所指示要切换到的BWP上没有第一USS，第一USS为包含可承载调度第三小区的数据的PDCCH的PDCCH候选的USS；
在PCell上的搜索空间集切换的指示，其中，搜索空间集切换的指示所要指示要切换到的搜索空间集中没有第一USS。
第五类，第一小区是第一个辅小区SCell，第二小区是第二个辅小区SCell
该第一指示信息包括以下指示中的至少一种：
激活第二个SCell的指示；
在第二个SCell上的BWP切换的指示，其中，BWP切换的指示所指示要切换到的 BWP上有第一USS，第一USS为包含可承载调度第三小区的数据的PDCCH的PDCCH候选的USS；
配置第二个SCell为非休眠小区的指示；
在第二个SCell上的搜索空间集切换的指示，其中，搜索空间集切换的指示所要指示要切换到的搜索空间集中有第一USS。
第六类，第一小区是第一个辅小区SCell，第二小区是第二个辅小区SCell
去激活第一个SCell的指示；
在第一个SCell上的BWP切换的指示，其中，BWP切换的指示所指示要切换到的BWP上没有第一USS，第一USS为包含可承载调度第三小区的数据的PDCCH的PDCCH候选的USS；
配置第一个SCell为休眠小区的指示；
在第一个SCell上的搜索空间集切换的指示，其中，搜索空间集切换的指示所要指示要切换到的搜索空间集中没有第一USS。
S303a、终端设备根据第一指示信息，停止在第一小区的至少一个USS监测用于调度第三小区的数据的PDCCH，或确定在第二小区上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH。
在一种具体的实现方式中，针对第一小区所属的类型不同，及第一指示信息包括的指示的内容不同，以下分场景进行说明：
场景a1、第一小区是辅小区SCell，第二小区是主小区PCell，第三小区是主小区PCell或辅小区SCell，且第一指示信息包括去激活SCell的指示
终端设备根据去激活的SCell的指示，去激活该SCell，或者，停止该SCell的去激活定时器sCellDeactivationTimer，或者，刷新或清除该SCell上所有的混合自动重复请求缓冲器HARQ buffer。此时，终端设备确定在PCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH。
场景a2、第一小区是辅小区SCell，第二小区是主小区PCell，第三小区是主小区PCell或辅小区SCell，且第一指示信息承载于DCI中，该第一指示信息包括在SCell上的BWP切换的指示
终端设备根据在SCell上的BWP切换的指示，切换要切换到的BWP，该要切换到的BWP上没有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在PCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH。
场景a3、第一小区是辅小区SCell，第二小区是主小区PCell，第三小区是主小区PCell或辅小区SCell，且第一指示信息承载于DCI中，该第一指示信息包括配置SCell为休眠小区的指示
终端设备根据DCI format 0_1或者1_1中的辅载波休眠指示SCell dormancy indication域指示SCell为休眠小区，在该SCell上激活的BWP切换到dormant BWP，该dormant BWP上没有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在PCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，并确定停止在第一个SCell的至少一 个USS上监测用于调度第三小区的数据的PDCCH。
或者，接入网设备通过参数SCell-groups-for-dormancy-within-active-time配置最多5个SCell group，SCell dormancy indication最多有5比特，每一个比特对应其中一个SCell group。终端设备根据该比特bit指示为’0’，在对应的SCell group里的每一个激活的SCell上BWP都切换到dormant BWP，该dormant BWP上没有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在PCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，并确定停止在第一个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
或者，终端设备根据DCI format 1_1中的特定域指示SCell为休眠小区，在该SCell上激活的BWP切换到dormant BWP，该dormant BWP上没有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在PCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，并确定停止在第一个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
或者，终端设备根据DCI format 2_6中的辅载波休眠指示SCell dormancy indication域指示SCell为休眠小区，在该SCell上激活的BWP切换到dormant BWP，该dormant BWP上没有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在PCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，并确定停止在第一个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
场景a4、第一小区是辅小区SCell，第二小区是主小区PCell，第三小区是主小区PCell或辅小区SCell，且第一指示信息承载于DCI中，该第一指示信息包括在SCell上的搜索空间集切换的指示
终端设备收到DCI format 2_0，指示在所述SCell上发生搜索空间集切换的指示，其中，所述搜索空间集切换的指示所要指示要切换到的搜索空间集中有所述第一USS，在承载该DCI format 2_0的PDCCH的符号与切换能力P switch符号所属的时隙之后的第一个时隙，终端设备确定在PCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，停止在SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
或者，终端设备在SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，且在当前时隙上定时器超时，终端设备在当前时隙之后的PDCCH的符号所属的时隙之后的第一个时隙，终端设备确定在PCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，停止在SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
或者，终端设备在搜索空间组的标识为1的USS上监测到调度第三小区的数据的PDCCH，在SCell上，在承载该DCI format的PDCCH的符号与切换能力P switch符号所属的时隙之后的第一个时隙，终端设备确定在PCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，停止在SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
场景a5、第一小区是辅小区SCell，第二小区是主小区PCell，第三小区是主小区PCell或辅小区SCell，且第一指示信息包括在PCell上的BWP切换的指示
终端设备根据在PCell上的BWP切换的指示，切换要切换到的BWP，该要切换到的BWP上有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在PCell的至少一个USS上监测用于调度第三小区的数据的PDCCH，并确定停止在SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH。
场景a6、第一小区是辅小区SCell，第二小区是主小区PCell，第三小区是主小区PCell或辅小区SCell，且第一指示信息包括在PCell上的搜索空间集切换的指示
终端设备根据在PCell上的搜索空间集切换的指示，切换要切换到的BWP，该要切换到的BWP上有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在PCell的至少一个USS上监测用于调度第三小区的数据的PDCCH，并确定停止在SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH。
场景b1、第一小区是主小区PCell，第二小区是辅小区SCell，第三小区是主小区PCell或辅小区SCell，且第一指示信息包括激活SCell的指示
终端设备根据激活SCell的指示，激活该SCell，此时，终端设备确定在SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，并确定停止在PCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
场景b2、第一小区是主小区PCell，第二小区是辅小区SCell，第三小区是主小区PCell或辅小区SCell，且第一指示信息承载于DCI中，该第一指示信息包括在SCell上的BWP切换的指示
终端设备根据在SCell上的BWP切换的指示，切换要切换到的BWP，该要切换到的BWP上有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，并确定停止在PCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
场景b3、第一小区是主小区PCell，第二小区是辅小区SCell，第三小区是主小区PCell或辅小区SCell，且第一指示信息承载于DCI中，该第一指示信息包括配置SCell为非休眠小区的指示
终端设备根据DCI format 0_1或者1_1中的辅载波休眠指示SCell dormancy indication域指示SCell为非休眠小区，在该SCell上的dormant BWP切换到non-dormancy BWP，该non-dormancy BWP上有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
或者，接入网设备通过参数SCell-groups-for-dormancy-within-active-time配置最多5个SCell group，SCell dormancy indication最多有5比特，每一个比特对应其中一个SCell group。终端设备根据该比特bit指示为’1’，在对应的SCell group里的每一个SCell上dormancy BWP都切换到non-dormancy BWP，该non-dormancy BWP上有第一 USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
或者，终端设备根据DCI format 1_1中的特定域指示SCell为非休眠小区，在该SCell上的dormancy BWP切换到non-dormancy BWP，该non-dormancy BWP上没有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
或者，终端设备根据DCI format 2_6中的辅载波休眠指示SCell dormancy indication域指示SCell为非休眠小区，在该SCell上的dormancy BWP切换到non-dormancy BWP，该non-dormancy BWP上没有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
场景b4、第一小区是主小区PCell，第二小区是辅小区SCell，第三小区是主小区PCell或辅小区SCell，且第一指示信息承载于DCI中，该第一指示信息包括在SCell上的搜索空间集切换的指示
终端设备收到DCI format 2_0指示在所述PCell上发生搜索空间集切换的指示，其中，所述搜索空间集切换的指示所要指示要切换到的搜索空间集中没有所述第一USS，在承载该DCI format 2_0的PDCCH的符号与切换能力P switch符号所属的时隙之后的第一个时隙，终端设备确定在SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，并确定停止在PCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
或者，终端设备在PCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，且在当前时隙上定时器超时，终端设备在当前时隙之后的PDCCH的符号所属的时隙之后的第一个时隙，终端设备确定在SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，并确定停止在PCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
或者，终端设备在搜索空间组的标识为0的USS上监测到调度第三小区的数据的PDCCH，在PCell上，在承载该DCI format的PDCCH的符号与切换能力P switch符号所属的时隙之后的第一个时隙终端设备确定在SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，并确定停止在PCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
场景b5、第一小区是主小区PCell，第二小区是辅小区SCell，第三小区是主小区PCell或辅小区SCell，且第一指示信息包括在PCell上的BWP切换的指示
终端设备根据在PCell上的BWP切换的指示，切换要切换到的BWP，该要切换到的BWP上没有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH，并确定停止在PCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH。
场景b6、第一小区是主小区PCell，第二小区是辅小区SCell，第三小区是主小区PCell或辅小区SCell，且第一指示信息包括在Pell上的搜索空间集切换的指示
终端设备根据在PCell上的搜索空间集切换的指示，切换要切换到的BWP，该要切换到的BWP上没有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH，并确定停止在PCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH。
场景c1、第一小区是第一个辅小区SCell，第二小区是第二个辅小区SCell，第三小区是第一个SCell或第二个SCell，且第一指示信息包括激活第二个SCell的指示
终端设备根据激活第二个SCell的指示，激活该第二个SCell，此时，终端设备确定在第二个SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，并确定停止在第一个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
场景c2、第一小区是第一个辅小区SCell，第二小区是第二个辅小区SCell，第三小区是第一个SCell或第二个SCell，且第一指示信息承载于DCI中，该第一指示信息包括在第二个SCell上的BWP切换的指示
终端设备根据在第二个SCell上的BWP切换的指示，切换要切换到的BWP，该要切换到的BWP上有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在第二个SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，并确定停止在第一个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
场景c3、第一小区是第一个辅小区SCell，第二小区是第二个辅小区SCell，第三小区是第一个SCell或第二个SCell，且第一指示信息承载于DCI中，该第一指示信息包括配置第二个SCell为非休眠小区的指示
终端设备根据DCI format 0_1或者1_1中的辅载波休眠指示SCell dormancy indication域指示第二个SCell为非休眠小区，在该第二个SCell上的dormant BWP切换到non-dormancy BWP，该non-dormancy BWP上有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在第二个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH，并确定停止在第一个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
或者，接入网设备通过参数SCell-groups-for-dormancy-within-active-time配置最多5个SCell group，SCell dormancy indication最多有5比特，每一个比特对应其中一个SCell group。终端设备根据该比特bit指示为’1’，在对应的SCell group里的每一个第二个SCell上dormancy BWP都切换到non-dormancy BWP，该non-dormancy BWP上有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在第二个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH，并确定停止在第一个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
或者，终端设备根据DCI format 1_1中的特定域指示第二个为非休眠小区，在该第二个上的dormancy BWP切换到non-dormancy BWP，该non-dormancy BWP上没有第 一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在第二个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH，并确定停止在第一个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
或者，终端设备根据DCI format 2_6中的辅载波休眠指示SCell dormancy indication域指示第二个SCell为非休眠小区，在该第二个SCell上的dormancy BWP切换到non-dormancy BWP，该non-dormancy BWP上没有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在第二个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH，并确定停止在第一个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
场景c4、第一小区是第一个辅小区SCell，第二小区是第二个辅小区SCell，第三小区是第一个SCell或第二个SCell，且第一指示信息承载于DCI中，该第一指示信息包括在第二个SCell上的搜索空间集切换的指示
终端设备收到DCI format 2_0指示在所述PCell上发生搜索空间集切换的指示，其中，所述搜索空间集切换的指示所要指示要切换到的搜索空间集中没有所述第一USS，在承载该DCI format 2_0的PDCCH的符号与切换能力P switch符号所属的时隙之后的第一个时隙，终端设备确定在第二个SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，并确定停止在第一个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
或者，终端设备在第一个SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，且在当前时隙上定时器超时，终端设备在当前时隙之后的PDCCH的符号所属的时隙之后的第一个时隙，终端设备确定在第二个SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，并确定停止在第一个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
或者，终端设备在搜索空间组的标识为0的USS上监测到调度第三小区的数据的PDCCH，在第一个SCell上，在承载该DCI format的PDCCH的符号与切换能力P switch符号所属的时隙之后的第一个时隙终端设备确定在第二个SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，并确定停止在第一个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
场景d1、第一小区是第一个辅小区SCell，第二小区是第二个辅小区SCell，第三小区是第一个SCell或第二个SCell，且第一指示信息包括去激活第一个SCell的指示终端设备根据去激活的第一个SCell的指示，去激活该第一个SCell，或者，停止该第一个SCell的去激活定时器sCellDeactivationTimer，或者，刷新或清除该第一个SCell上所有的混合自动重复请求缓冲器HARQ buffer。此时，终端设备确定在第二个SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH。
场景d2、第一小区是第一个辅小区SCell，第二小区是第二个辅小区SCell，第三小区是第一个SCell或第二个SCell，且第一指示信息承载于DCI中，该第一指示信息包括在第一个SCell上的BWP切换的指示
终端设备根据在第一个SCell上的BWP切换的指示，切换要切换到的BWP，该要 切换到的BWP上没有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在第二个SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH。
场景d3、第一小区是第一个辅小区SCell，第二小区是第二个辅小区SCell，第三小区是第一个SCell或第二个SCell，且第一指示信息承载于DCI中，该第一指示信息包括配置第一个SCell为休眠小区的指示
终端设备根据DCI format 0_1或者1_1中的辅载波休眠指示SCell dormancy indication域指示第一个SCell为休眠小区，在该SCell上激活的BWP切换到dormant BWP，该dormant BWP上没有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在第二个SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，并确定停止在第一个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
或者，接入网设备通过参数SCell-groups-for-dormancy-within-active-time配置最多5个SCell group，SCell dormancy indication最多有5比特，每一个比特对应其中一个SCell group。终端设备根据该比特bit指示为’0’，在对应的SCell group里的每一个激活的第一个SCell上BWP都切换到dormant BWP，该dormant BWP上没有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在第二个SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，并确定停止在第一个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
或者，终端设备根据DCI format 1_1中的特定域指示第一个SCell为休眠小区，在该第一个SCell上激活的BWP切换到dormant BWP，该dormant BWP上没有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在第二个SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，并确定停止在第一个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
或者，终端设备根据DCI format 2_6中的辅载波休眠指示SCell dormancy indication域指示第一个SCell为休眠小区，在该第一个SCell上激活的BWP切换到dormant BWP，该dormant BWP上没有第一USS，该第一USS为包含可承载调度在第三小区的数据的PDCCH的PDCCH候选的USS。此时，终端设备确定在第二个SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，并确定停止在第一个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
场景d4、第一小区是第一个辅小区SCell，第二小区是第二个辅小区SCell，第三小区是第一个SCell或第二个SCell，且第一指示信息承载于DCI中，该第一指示信息包括在第一个SCell上的搜索空间集切换的指示
终端设备收到DCI format 2_0，指示在所述第一个SCell上发生搜索空间集切换的指示，其中，所述搜索空间集切换的指示所要指示要切换到的搜索空间集中有所述第一USS，在承载该DCI format 2_0的PDCCH的符号与切换能力P switch符号所属的时隙之后的第一个时隙，终端设备确定在第二个SCell上的至少一个第一USS上监测用于 调度第三小区的数据的PDCCH，停止在第一个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
或者，终端设备在第一个SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，且在当前时隙上定时器超时，终端设备在当前时隙之后的PDCCH的符号所属的时隙之后的第一个时隙，终端设备确定在第二个SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，停止在第一个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
或者，终端设备在搜索空间组的标识为1的USS上监测到调度第三小区的数据的PDCCH，在第一个SCell上，在承载该DCI format的PDCCH的符号与切换能力P switch符号所属的时隙之后的第一个时隙，终端设备确定在第二个SCell上的至少一个第一USS上监测用于调度第三小区的数据的PDCCH，停止在第一个SCell的至少一个USS上监测用于调度第三小区的数据的PDCCH。
S304、接入网设备向终端设备发送PDCCH。
进一步的，为了同时适应不同场景的需求，本申请实施例提供的第一指示信息可以包含第一类指示信息和第二类指示信息，第一类指示信息用于确定在第二小区上属于第一USS的第一套USS上监测用于调度第三小区的数据的PDCCH，第二类指示信息用于确定在第二小区上属于第一USS的第二套USS上监测用于调度第三小区的数据的PDCCH。
其中，第一类指示信息可以包括场景a1-场景a6中至少一个的指示，相应的，第二类指示信息可以包括场景a1-场景a6中至少一个的指示。或者，第一类指示信息可以包括在场景b1-场景b6中至少一个的指示，相应的，第二类指示信息可以包括在场景b1-场景b6中至少一个的指示。或者，第一类指示信息可以包括在场景c1-场景c4中至少一个的指示，相应的，第二类指示信息可以包括在场景c1-场景c4中至少一个的指示。或者，第一类指示信息可以包括在场景d1-场景d4中至少一个的指示，相应的，第二类指示信息可以包括在场景d1-场景d4中至少一个的指示。
当终端设备在PCell上的至少一个USS上监测用于调度第三小区的数据的PDCCH时，终端设备根据在PCell上的USS切换的指示，确定在PCell上的第一套USS上监测用于调度第三小区的数据的PDCCH，停止在SCell的第二套USS上监测用于调度第三小区的数据的PDCCH。
示例性的，沿用场景a3，第一类指示信息包括配置SCell为休眠小区的指示，终端设备可以确定SCell近期没有数据调度的可能性。因此，终端设备可以确定在PCell上的第一套USS上监测用于调度第三小区的数据的PDCCH。
沿用场景a4，第二类指示信息包括在SCell上的搜索空间集切换的指示，终端设备可以确定PCell上的PDCCH负载减小，因此，终端设备可以确定在PCell上的第二套USS上监测用于调度第三小区的数据的PDCCH。
因此，本申请实施例通过在各个小区上配置多套USS，第一指示信息包含分别指示终端设备在各小区的各套USS上监测用于调度第三小区的数据的PDCCH，可以满足各个场景的不同需求，灵活性较高。
进一步的，图4为本申请实施例提供的又一种跨载波调度方法的流程示意图。如 图4所示，本申请实施例提供的跨载波调度方法还可以包括：
S303b、终端设备根据第一指示信息，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
相应的，S301b、接入网设备根据第一指示信息，确定停止在第一小区上的至少一个USS发送调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上发送用于调度第三小区的数据的PDCCH的开始时间。
其中，接入网设备与终端设备确定上述时间的方式相同。以下以终端设备为例进行说明，针对不同的场景，终端设备确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间的方式不同，或终端设备确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间的方式不同。
在一种具体的实现方式中，以下针对不同的场景进行说明：
第一、场景a1、场景b1、场景c1和场景d1
(1)当第一指示信息承载在RRC信令或者MAC-CE中时，S303b具体可以为：
终端设备根据第一小区的去激活的生效时间，确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间；或者，
终端设备根据第二小区的激活的生效时间，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间。
(2)当第一指示信息承载在下行控制信息DCI中时，S303b具体可以为：
1)终端设备根据DCI和协议规定时间，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。其中，该协议规定时间与DCI解析时间相关。
应理解为，终端设备未被配置minimum K0和searchSpaceSwitchingDelay-r16，终端设备根据DCI的结束时间和协议规定时间所属的时隙之后的第一个时隙，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
2)终端设备根据DCI和搜索空间集切换时间，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
应理解为，终端设备未被配置minimum K0，终端设备向接入网设备上报searchSpaceSwitchingDelay-r16且接入网设备根据searchSpaceSwitchingDelay-r16下发的切换能力P switch。终端设备根据DCI的结束时间和搜索空间集切换时间，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
3)终端设备根据DCI和配置的minimum K0，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一 个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
应理解为，终端设备被配置minimum K0，终端设备没有向接入网设备上报searchSpaceSwitchingDelay-r16且接入网设备没有下发切换能力P switch。终端设备根据DCI的结束时间和minimum K0，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
4)终端设备根据配置的minimum K0和搜索空间组切换时间中的较大的一个，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
应理解为，终端设备被配置minimum K0，终端设备向接入网设备上报searchSpaceSwitchingDelay-r16且接入网设备下发了切换能力P switch。终端设备根据minimum K0和搜索空间组切换时间中的较大的一个，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
第二、场景a2、场景a5、场景b2、场景b5、场景c2和场景d2
S303b具体可以为：
(1)终端设备根据在第一小区上的BWP切换的生效时间，确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间；其中，BWP切换的指示所指示要切换到的BWP上没有第一USS，第一USS为包含可承载调度第三小区的数据的PDCCH的PDCCH候选的USS。
(2)当第一指示信息承载在下行控制信息DCI中时，S303b具体可以为：
1)终端设备根据DCI和协议规定时间，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。其中，该协议规定时间与DCI解析时间相关。
应理解为，终端设备未被配置minimum K0和searchSpaceSwitchingDelay-r16，终端设备根据DCI的结束时间和协议规定时间所属的时隙之后的第一个时隙，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
2)终端设备根据DCI和BWP切换的生效时间，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
应理解为，终端设备未被配置minimum K0，终端设备向接入网设备上报searchSpaceSwitchingDelay-r16且接入网设备根据searchSpaceSwitchingDelay-r16下发了切换能力P switch。终端设备根据DCI的结束时间和BWP切换的生效时间，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时 间。
3)终端设备根据DCI和配置的minimum K0，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
应理解为，终端设备被配置minimum K0，终端设备没有向接入网设备上报searchSpaceSwitchingDelay-r16且接入网设备没有下发切换能力P switch。终端设备根据DCI的结束时间和minimum K0，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
4)终端设备根据配置的minimum K0和BWP切换的生效时间，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
应理解为，终端设备被配置minimum K0，终端设备向接入网设备上报searchSpaceSwitchingDelay-r16且接入网设备下发了切换能力P switch。终端设备根据minimum K0和BWP切换的生效时间，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
第三、场景a3、场景b3、场景c3和场景d3
S303b具体可以为：
(1)终端设备根据第一小区为休眠小区的生效时间，确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间；或者，终端设备根据第二小区为非休眠小区的生效时间，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间。
(2)当第一指示信息承载在下行控制信息DCI中时，S303b具体可以为：
1)终端设备根据DCI和协议规定时间，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。其中，该协议规定时间与DCI解析时间相关。
应理解为，终端设备未被配置minimum K0和searchSpaceSwitchingDelay-r16，终端设备根据DCI的结束时间和协议规定时间所属的时隙之后的第一个时隙，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
2)终端设备根据DCI和休眠小区/非休眠小区的生效时间，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
应理解为，终端设备未被配置minimum K0，终端设备向接入网设备上报searchSpaceSwitchingDelay-r16且接入网设备根据searchSpaceSwitchingDelay-r16下发了切换能力P switch。终端设备根据DCI的结束时间和休眠小区/非休眠小区的生效时间， 确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
3)终端设备根据DCI和配置的minimum K0，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
应理解为，终端设备被配置minimum K0，终端设备没有向接入网设备上报searchSpaceSwitchingDelay-r16且接入网设备没有下发切换能力P switch。终端设备根据DCI的结束时间和minimum K0，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
4)终端设备根据配置的minimum K0和休眠小区/非休眠小区的生效时间，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
应理解为，终端设备被配置minimum K0，终端设备向接入网设备上报searchSpaceSwitchingDelay-r16且接入网设备下发了切换能力P switch。终端设备根据minimum K0和休眠小区/非休眠小区的生效时间，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
第四、场景a4、场景a6、场景b4、场景b6、场景c4和场景d4
S303b具体可以为：
(1)终端设备根据在第一小区上的搜索空间集切换的时间，确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间；其中，搜索空间集切换的指示所要指示要切换到的搜索空间集中没有USS。
(2)当第一指示信息承载在下行控制信息DCI中时，S303b具体可以为：
1)终端设备根据DCI和搜索空间集切换的时间，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
应理解为，终端设备未被配置minimum K0，终端设备向接入网设备上报searchSpaceSwitchingDelay-r16且接入网设备根据searchSpaceSwitchingDelay-r16下发了切换能力P switch。终端设备根据DCI的结束时间和搜索空间集切换的时间，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
2)终端设备根据配置的minimum K0和搜索空间集切换的时间，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
应理解为，终端设备被配置minimum K0，终端设备向接入网设备上报 searchSpaceSwitchingDelay-r16且接入网设备下发了切换能力P switch。终端设备根据minimum K0和搜索空间集切换的时间，确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间。
本申请实施例通过针对不同的场景，终端设备确定停止在第一小区上的至少一个USS监测用于调度第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH的开始时间，从而保证两小区间高效切换，减小对第一小区的调度的影响。
本申请上述实施例中的各个方案在不矛盾的前提下，均可以进行结合。
上述主要从各个网元之间交互的角度对本申请实施例的方案进行了介绍。可以理解的是，各个网元，例如，接入网设备和终端设备为了实现上述功能，其包含了执行各个功能相应的硬件结构和软件模块中的至少一个。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对接入网设备和终端设备进行功能单元的划分，例如，可以对应各个功能划分各个功能单元，也可以将两个或两个以上的功能集成在一个处理单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。需要说明的是，本申请实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
在采用集成的单元的情况下，图5示出了上述实施例中所涉及的通信装置(记为通信装置50)的一种可能的结构示意图，该通信装置80包括处理单元501和通信单元502，还可以包括存储单元503。图5所示的结构示意图可以用于示意上述实施例中所涉及的接入网设备和终端设备的结构。
当图5所示的结构示意图用于示意上述实施例中所涉及的终端设备的结构时，处理单元501用于对终端设备的动作进行控制管理，例如，控制终端设备执行图3中的S302a、S302c和S303a，图4中的S302a、S302c、S303a和S303b，和/或本申请实施例中所描述的其他过程中的终端设备执行的动作。处理单元501可以通过通信单元502与其他网络实体通信，例如，与图1中示出的接入网设备通信。存储单元503用于存储终端设备的程序代码和数据。
当图5所示的结构示意图用于示意上述实施例中所涉及的终端设备的结构时，通信装置50可以是终端设备，也可以是终端设备内的芯片。
当图5所示的结构示意图用于示意上述实施例中所涉及的接入网设备的结构时，处理单元501用于对接入网设备的动作进行控制管理，例如，控制接入网设备执行图3中的S301a、S302b和S304，图4中的S301a、S301b、S302b和S304，和/或本申请实施例中所描述的其他过程中的终端设备执行的动作。处理单元801可以通过通信单元502与其他网络实体通信，例如，与图1中示出的终端设备通信。存储单元503用 于存储接入网设备的程序代码和数据。
当图5所示的结构示意图用于示意上述实施例中所涉及的接入网设备的结构时，通信装置50可以是接入网设备，也可以是接入网设备内的芯片。
其中，当通信装置50为终端设备或接入网设备时，处理单元501可以是处理器或控制器，通信单元502可以是通信接口、收发器、收发机、收发电路、收发装置等。其中，通信接口是统称，可以包括一个或多个接口。存储单元503可以是存储器。当通信装置50为终端设备或接入网设备内的芯片时，处理单元501可以是处理器或控制器，通信单元502可以是输入接口和/或输出接口、管脚或电路等。存储单元503可以是该芯片内的存储单元(例如，寄存器、缓存等)，也可以是终端设备或接入网设备内的位于该芯片外部的存储单元(例如，只读存储器(read-onlymemory，简称ROM)、随机存取存储器(random access memory，简称RAM)等)。
其中，通信单元也可以称为收发单元。通信装置50中的具有收发功能的天线和控制电路可以视为通信装置50的通信单元502，具有处理功能的处理器可以视为通信装置50的处理单元501。可选的，通信单元502中用于实现接收功能的器件可以视为接收单元，接收单元用于执行本申请实施例中的接收的步骤，接收单元可以为接收机、接收器、接收电路等。
在实现过程中，本实施例提供的方法中的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。
本申请中的处理器可以包括但不限于以下至少一种：中央处理单元(central processing unit，CPU)、微处理器、数字信号处理器(DSP)、微控制器(microcontroller unit，MCU)、或人工智能处理器等各类运行软件的计算设备，每种计算设备可包括一个或多个用于执行软件指令以进行运算或处理的核。该处理器可以是个单独的半导体芯片，也可以跟其他电路一起集成为一个半导体芯片，例如，可以跟其他电路(如编解码电路、硬件加速电路或各种总线和接口电路)构成一个SoC(片上系统)，或者也可以作为一个ASIC的内置处理器集成在所述ASIC当中，该集成了处理器的ASIC可以单独封装或者也可以跟其他电路封装在一起。该处理器除了包括用于执行软件指令以进行运算或处理的核外，还可进一步包括必要的硬件加速器，如现场可编程门阵列(field programmable gate array，FPGA)、PLD(可编程逻辑器件)、或者实现专用逻辑运算的逻辑电路。
本申请实施例中的存储器，可以包括如下至少一种类型：只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(Electrically erasable programmabler-only memory，EEPROM)。在某些场景下，存储器还可以是只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。
本申请实施例还提供了一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行上述任一方法。
本申请实施例还提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述任一方法。
本申请实施例还提供了一种通信系统，包括：上述接入网设备和终端设备。
本申请实施例还提供了一种芯片，该芯片包括处理器和接口电路，该接口电路和该处理器耦合，该处理器用于运行计算机程序或指令，以实现上述方法，该接口电路用于与该芯片之外的其它模块进行通信。
尽管结合具体特征及其实施例对本申请进行了描述，显而易见的，在不脱离本申请的精神和范围的情况下，可对其进行各种修改和组合。相应地，本说明书和附图仅仅是所附权利要求所界定的本申请的示例性说明，且视为已覆盖本申请范围内的任意和所有修改、变化、组合或等同物。显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。
需要说明的是：以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何在本申请揭露的技术范围内的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (24)

  1. 一种跨载波调度方法，其特征在于，包括：
    终端设备在第一小区上的至少一个USS上监测用于调度第三小区的数据的PDCCH，接收第一指示信息，所述第一指示信息用于确定停止在所述第一小区的至少一个USS上监测用于调度所述第三小区的数据的PDCCH，或确定在第二小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH，所述第三小区为所述第一小区或所述第二小区；
    所述终端设备根据所述第一指示信息，停止在所述第一小区的至少一个USS上监测用于调度所述第三小区的数据的PDCCH，并确定在所述第二小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH。
  2. 根据权利要求1所述的方法，其特征在于，所述第一指示信息包括以下指示中的至少一种：
    去激活所述第一小区的指示；
    在所述第一小区上的BWP切换的指示，其中，所述BWP切换的指示所指示要切换到的BWP上没有第一USS，所述第一USS为包含可承载调度所述第一小区的数据的PDCCH的PDCCH候选的USS；
    配置所述第一小区为休眠小区的指示；
    在所述第一小区上的搜索空间集切换的指示，其中，所述搜索空间集切换的指示所要指示要切换到的搜索空间集中没有所述第一USS。
  3. 根据权利要求1所述的方法，其特征在于，所述第一指示信息包括以下指示中的至少一种：
    激活所述第二小区的指示，其中，激活后的第二小区的搜索空间集中有第一USS，所述第一USS为包含可承载调度所述第一小区的数据的PDCCH的PDCCH候选的USS；
    在所述第二小区上的BWP切换的指示，其中，所述BWP切换的指示所指示要切换到的BWP上有所述第一USS；
    配置所述第二小区为非休眠小区的指示，其中，非休眠后的第二小区的搜索空间集中有所述第一USS；
    在所述第二小区上发生搜索空间集切换的指示，其中，所述搜索空间集切换的指示所要指示要切换到的搜索空间集中有所述第一USS。
  4. 根据权利要求2或3所述的方法，其特征在于，所述第一指示信息包含第一类指示信息和第二类指示信息，所述第一类指示信息用于确定在所述第二小区上属于所述第一USS的第一套USS上监测用于调度所述第三小区的数据的PDCCH，所述第二类指示信息用于确定在所述第二小区上属于所述第一USS的第二套USS上监测用于调度所述第三小区的数据的PDCCH。
  5. 根据权利要求1-4中任一项所述的方法，其特征在于，还包括：
    所述终端设备根据所述第一指示信息，确定停止在所述第一小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的开始时间。
  6. 根据权利要求5所述的方法，其特征在于，当所述第一指示信息承载在RRC信 令或者MAC-CE中时，所述终端设备根据所述第一指示信息，确定停止在所述第一小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的开始时间，包括：
    所述终端设备根据所述第一小区的去激活的生效时间，确定在所述第二小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的开始时间；或者，
    所述终端设备根据所述第二小区的激活的生效时间，确定停止在所述第一小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的时间。
  7. 根据权利要求5所述的方法，其特征在于，当所述第一指示信息承载在下行控制信息DCI中时，所述终端设备根据所述第一指示信息，确定停止在所述第一小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的开始时间，包括：
    所述终端设备根据所述DCI和协议规定时间，确定停止在所述第一小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的开始时间；或者，所述终端设备根据DCI和搜索空间集切换时间，确定停止在所述第一小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的开始时间；或者，
    所述终端设备根据DCI和配置的minimum K0，确定停止在所述第一小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的开始时间；或者，所述终端设备根据配置的minimum K0和搜索空间组切换时间中的较大的一个，确定停止在所述第一小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的开始时间。
  8. 根据权利要求5所述的方法，其特征在于，所述终端设备根据所述第一指示信息，确定停止在所述第一小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的开始时间，包括：
    所述终端设备根据在所述第一小区上的BWP切换的生效时间，确定在第二小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的开始时间；其中，所述BWP切换的指示所指示要切换到的BWP上没有第一USS，所述第一USS为包含可承载调度所述第三小区的数据的PDCCH的PDCCH候选的USS；或者，
    所述终端设备根据在所述第二小区上的BWP切换的生效时间，确定停止在所述第一小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的时间；其中，所述BWP切换的指示所指示要切换到的BWP上有第一USS，所述第一USS为包含可承载调度所述第三小区的数据的PDCCH的PDCCH候选的USS。
  9. 根据权利要求5所述的方法，其特征在于，所述终端设备根据所述第一指示信息，确定停止在所述第一小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的开始时间，包括：
    所述终端设备根据所述第一小区为休眠小区的生效时间，确定在所述第二小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的开始时间；或者，
    所述终端设备根据所述第二小区为非休眠小区的生效时间，确定停止在所述第一小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的时间。
  10. 根据权利要求5所述的方法，其特征在于，所述终端设备根据所述第一指示信息，确定停止在所述第一小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的开始时间，包括：
    所述终端设备根据在所述第一小区上的搜索空间集切换的时间，确定在第二小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的开始时间；其中，所述搜索空间集切换的指示所要指示要切换到的搜索空间集中没有所述USS；
    或者，
    所述终端设备根据在所述第二小区上的搜索空间集切换的时间，确定停止在所述第一小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH的时间；其中，所述搜索空间集切换的指示所要指示要切换到的搜索空间集中有所述USS。
  11. 一种跨载波调度方法，其特征在于，包括：
    接入网设备确定停止在第一小区的至少一个USS发送调度第三小区的数据的PDCCH，并确定在第二小区上的至少一个第一USS上发送用于调度所述第三小区的数据的PDCCH，所述第三小区为所述第一小区或所述第二小区；
    所述接入网设备向终端设备发送第一指示信息；其中，所述第一指示信息用于指示所述终端设备确定停止在所述第一小区的至少一个USS上监测用于调度所述第三小区的数据的PDCCH，或确定在第二小区上的至少一个USS上监测用于调度所述第三小区的数据的PDCCH。
  12. 根据权利要求11所述的方法，其特征在于，所述第一指示信息包括以下指示中的至少一种：
    去激活所述第一小区的指示；
    在所述第一小区上的BWP切换的指示，其中，所述BWP切换的指示所指示要切换到的BWP上没有第一USS，所述第一USS为包含可承载调度所述第一小区的数据的PDCCH的PDCCH候选的USS；
    配置所述第一小区为休眠小区的指示；
    在所述第一小区上的搜索空间集切换的指示，其中，所述搜索空间集切换的指示所要指示要切换到的搜索空间集中没有所述第一USS。
  13. 根据权利要求11所述的方法，其特征在于，所述第一指示信息包括以下指示中的至少一种：
    激活所述第二小区的指示，其中，激活后的第二小区的搜索空间集中有第一USS， 所述第一USS为包含可承载调度所述第一小区的数据的PDCCH的PDCCH候选的USS；
    在所述第二小区上的BWP切换的指示，其中，所述BWP切换的指示所指示要切换到的BWP上有所述第一USS；
    配置所述第二小区为非休眠小区的指示，其中，非休眠后的第二小区的搜索空间集中有所述第一USS；
    在所述第二小区上发生搜索空间集切换的指示，其中，所述搜索空间集切换的指示所要指示要切换到的搜索空间集中有所述第一USS。
  14. 根据权利要求12或13所述的方法，其特征在于，所述第一指示信息包含第一类指示信息和第二类指示信息，所述第一类指示信息用于指示所述终端设备确定在所述第二小区上属于所述第一USS的第一套USS上监测用于调度所述第三小区的数据的PDCCH，所述第二类指示信息用于指示所述终端设备确定在所述第二小区上属于所述第一USS的第二套USS上监测用于调度所述第三小区的数据的PDCCH。
  15. 根据权利要求11-14中任一项所述的方法，其特征在于，还包括：
    所述接入网设备根据所述第一指示信息，确定停止在所述第一小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的开始时间。
  16. 根据权利要求15所述的方法，其特征在于，当所述第一指示信息承载在RRC信令或者MAC-CE中时，所述接入网设备根据所述第一指示信息，确定停止在所述第一小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的开始时间，包括：
    所述接入网设备根据所述第一小区的去激活的生效时间，确定在所述第二小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的开始时间；或者，
    所述接入网设备根据所述第二小区的激活的生效时间，确定停止在所述第一小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的时间。
  17. 根据权利要求15所述的方法，其特征在于，当所述第一指示信息承载在下行控制信息DCI中时，所述接入网设备根据所述第一指示信息，确定停止在所述第一小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的开始时间，包括：
    所述接入网设备根据所述DCI和协议规定时间，确定停止在所述第一小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的开始时间；或者，
    所述接入网设备根据DCI和搜索空间集切换时间，确定停止在所述第一小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的开始时间；或者，
    所述接入网设备根据DCI和配置的minimum K0，确定停止在所述第一小区上的至 少一个USS上发送用于调度所述第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的开始时间；或者，
    所述接入网设备根据配置的minimum K0和搜索空间组切换时间中的较大的一个，确定停止在所述第一小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的开始时间。
  18. 根据权利要求15所述的方法，其特征在于，所述接入网设备根据所述第一指示信息，确定停止在所述第一小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的开始时间，包括：
    所述接入网设备根据在所述第一小区上的BWP切换的生效时间，确定在第二小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的开始时间；其中，所述BWP切换的指示所指示要切换到的BWP上没有第一USS，所述第一USS为包含可承载调度所述第三小区的数据的PDCCH的PDCCH候选的USS；或者，
    所述接入网设备根据在所述第二小区上的BWP切换的生效时间，确定停止在所述第一小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的时间；其中，所述BWP切换的指示所指示要切换到的BWP上有第一USS，所述第一USS为包含可承载调度所述第三小区的数据的PDCCH的PDCCH候选的USS。
  19. 根据权利要求15所述的方法，其特征在于，所述接入网设备根据所述第一指示信息，确定停止在所述第一小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的开始时间，包括：
    所述接入网设备根据所述第一小区为休眠小区的生效时间，确定在所述第二小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的开始时间；或者，所述接入网设备根据所述第二小区为非休眠小区的生效时间，确定停止在所述第一小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的时间。
  20. 根据权利要求15所述的方法，其特征在于，所述接入网设备根据所述第一指示信息，确定停止在所述第一小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的时间，或确定在第二小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的开始时间，包括：
    所述接入网设备根据在所述第一小区上的搜索空间集切换的时间，确定在第二小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的开始时间；其中，所述搜索空间集切换的指示所要指示要切换到的搜索空间集中没有所述第一USS；
    或者，
    所述接入网设备根据在所述第二小区上的搜索空间集切换的时间，确定停止在所述第一小区上的至少一个USS上发送用于调度所述第三小区的数据的PDCCH的时间；其中，所述搜索空间集切换的指示所要指示要切换到的搜索空间集中有所述第一USS。
  21. 一种终端设备，其特征在于，包括：用于执行权利要求1至10中任一项所述 的各个步骤的单元。
  22. 一种接入网设备，其特征在于，包括：用于执行权利要求11至20中任一项所述的各个步骤的单元。
  23. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储程序，所述程序被处理器调用时，权利要求1至10任一项所述的跨载波调度方法被执行，或者权利要求11至20任一项所述的跨载波调度方法被执行。
  24. 一种计算机程序，其特征在于，当所述程序被处理器调用时，权利要求1至10任一项所述的跨载波调度方法被执行，或者权利要求11至20任一项所述的跨载波调度方法被执行。
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