WO2022022340A1 - 一种通信方法及装置 - Google Patents

一种通信方法及装置 Download PDF

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Publication number
WO2022022340A1
WO2022022340A1 PCT/CN2021/107440 CN2021107440W WO2022022340A1 WO 2022022340 A1 WO2022022340 A1 WO 2022022340A1 CN 2021107440 W CN2021107440 W CN 2021107440W WO 2022022340 A1 WO2022022340 A1 WO 2022022340A1
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WIPO (PCT)
Prior art keywords
information
monitoring
resource set
control resource
tci state
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Ceased
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PCT/CN2021/107440
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English (en)
French (fr)
Inventor
于海凤
李秉肇
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication date
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Priority to EP21848930.0A priority Critical patent/EP4164299A4/en
Publication of WO2022022340A1 publication Critical patent/WO2022022340A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • 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 signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower using a pre-established activity schedule, e.g. traffic indication frame
    • 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
    • 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) or DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a communication method and apparatus.
  • the access network device can send configuration information to the terminal device, and the configuration information is used to configure the control resource set (control-resource set, CORESET) and the search space (search space) associated with the control resource set. It can be referred to as a search space set; further, control information is sent to the terminal device at the listening timing corresponding to the control resource set and the search space associated with the control resource set.
  • the terminal device can monitor the control information at the monitoring timing corresponding to the control resource set and the search space associated with the control resource set, and the control information can be used to schedule service data, and the service data can be carried on the physical Downlink shared channel (physical downlink sharing channel, PDSCH). After monitoring the control information, the terminal device can receive service data according to the scheduling information included in the control information.
  • the configuration information is used to configure the control resource set (control-resource set, CORESET) and the search space (search space) associated with the control resource set. It can be referred to as a search space set; further, control information is sent to the terminal device at the listening
  • the access network device can send the information of the multicast service to multiple terminal devices in a multicast manner.
  • the terminal device monitors the control information to receive the information of the multicast service still needs further research.
  • the present application provides a communication method and apparatus for reducing unnecessary monitoring of terminal equipment and reducing power consumption of the terminal equipment.
  • an embodiment of the present application provides a communication method, which can be applied to a terminal device or a chip in a terminal device.
  • the terminal device receives the first indication information , the first indication information is used to indicate the target monitoring timing of the first control information; the first control information is monitored on the target monitoring timing, and the first control information is used to schedule the information of the multicast service; wherein, the target monitoring timing includes the first control information At least one listening opportunity among a plurality of listening opportunities for information.
  • the access network device since the access network device sends the first indication information to the terminal device to indicate the target monitoring time, the terminal device can monitor at the target monitoring time. In terms of monitoring at all monitoring timings, unnecessary monitoring of the terminal device can be effectively reduced, and the power consumption of the terminal device can be reduced.
  • the method further includes: receiving configuration information, where the configuration information is used to configure the first search space of the multicast service and at least one control resource set of the multicast service, the at least one control resource set of the multicast service.
  • a control resource set includes a first control resource set; wherein, the first search space is associated with the first control resource set, and the first search space and the first control resource set correspond to the multiple listening occasions.
  • the access network device can configure a plurality of listening timings of the first control information by configuring one search space, thereby effectively saving resource overhead.
  • the at least one control resource set further includes a second control resource set; the method further includes: receiving second indication information, where the second indication information is used to indicate a second control associated with the first search space The resource set is switched to the first control resource set.
  • the access network device can flexibly control the set of control resources associated with the first search space, thereby increasing the flexibility of the access network device regulation.
  • the first indication information includes at least one of the following items: (1) monitoring period information, where the monitoring period information is used to indicate a period for monitoring the first control information; (2) offset information, where the The offset information is used to indicate the offset of the target listening timing in the cycle; (3) the monitoring duration information, the monitoring duration information is used to indicate the duration of monitoring the first control information in the cycle.
  • the monitoring period information includes at least one of the following items: the number of radio frames included in the period, the number of radio subframes included in the period, and the number of time slots included in the period.
  • the offset information includes at least one of the following: the number of radio frames included in the offset, the number of radio frames included in the offset The number of radio subframes included in the offset, the number of time slots included in the offset, the number of symbols included in the offset, and the number of listening opportunities included in the offset ;
  • the monitoring duration information includes at least one of the following: the number of radio frames included in the duration, the number of radio subframes included in the duration, the number of time slots included in the duration, and the duration including The number of symbols, and the number of listening opportunities included in the duration; wherein, the listening opportunity included in the duration is the target listening opportunity.
  • the start time of the cycle is determined according to the received third indication information; or, the start time of the cycle is the end time of receiving the first indication information.
  • the third indication information includes at least one of the following items: an identifier of a radio frame, an identifier of a radio subframe, an identifier of a time slot, and an identifier of a symbol.
  • the start listening opportunity included in the period is the first listening opportunity after the starting time among the multiple listening opportunities; or, the starting listening opportunity is the The listening opportunity closest to the start time among the multiple listening opportunities.
  • the method further includes: receiving fourth indication information, where the fourth indication information includes at least one of the following: an identifier of the first TCI state, an identifier of a cell corresponding to the first search space, the first search space The identifier of the corresponding BWP; the identifier of the first TCI state is used to determine the beam that monitors the first control information.
  • the method further includes: receiving first configuration information, where the first configuration information is used to configure at least two search spaces of the multicast service and at least one control resource set of the multicast service,
  • the at least one control resource set includes a first control resource set; the at least two search spaces are associated with the first control resource set, and the at least two search spaces and the first control resource set correspond to the multiple listening occasions.
  • the access network device can configure multiple listening timings of the first control information by configuring at least two search spaces, so as to indicate the target listening timings of the first control information to the terminal device.
  • the first indication information includes an identifier of the first search space in the at least two search spaces; the first search space and the first control resource set correspond to target listening timings.
  • the first indication information includes an identifier of at least one TCI state; the method further includes: selecting a first TCI state from the at least one TCI state; determining, according to the correspondence between the TCI state and the search space, The first TCI state corresponds to the first search space; the monitoring timing corresponding to the first search space and the first control resource set is determined as the target monitoring timing.
  • selecting a first TCI state from the at least one TCI state includes: determining a TCI state used for monitoring second control information, the second control information being used for scheduling unicast service information; for monitoring the TCI state of the second control information, selecting a first TCI state from the at least one TCI state, and the first TCI state is the same as the TCI state for monitoring the second control information; or, determining the at least one TCI state
  • the beam quality corresponding to the state according to the beam quality corresponding to the at least one TCI state, a first TCI state is selected from the at least one TCI state, and the beam quality corresponding to the first TCI state is greater than or equal to the at least one TCI state. Beam quality corresponding to other TCI states.
  • the method further includes: receiving second configuration information, where the second configuration information is used to configure the corresponding relationship between the TCI state and the search space.
  • the at least one control resource set further includes a second control resource set; the method further includes: receiving second indication information, where the second indication information is used to indicate a second control associated with the first search space The resource set is switched to the first control resource set.
  • the method further includes: receiving fourth indication information, where the fourth indication information includes at least one of the following: an identifier of the first TCI state, an identifier of a cell corresponding to the first search space, the first search space The identifier of the corresponding BWP; the identifier of the first TCI state is used to determine the beam that monitors the first control information.
  • an embodiment of the present application provides a communication method, which can be applied to an access network device or a chip in an access network device.
  • the connection The network access device determines the first indication information, the first indication information is used to indicate the target monitoring timing of the first control information, and the first control information is used to schedule the information of the multicast service; the first indication information is sent to the terminal device; wherein, the target The listening opportunity includes at least one listening opportunity among a plurality of listening opportunities of the first control information.
  • the method further includes: sending configuration information to the terminal device, where the configuration information is used to configure the first search space of the multicast service and at least one control resource of the multicast service
  • the at least one control resource set includes a first control resource set; wherein, the first search space is associated with the first control resource set, and the first search space and the first control resource set correspond to the multiple listening occasions.
  • the at least one control resource set further includes a second control resource set; the method further includes: sending second indication information to the terminal device, where the second indication information is used to indicate the first search space The associated second control resource set is switched to the first control resource set.
  • the first indication information includes at least one of the following items: (1) monitoring period information, where the monitoring period information is used to indicate a period for monitoring the first control information; (2) offset information, where the The offset information is used to indicate the offset of the target listening timing in the cycle; (3) the monitoring duration information, the monitoring duration information is used to indicate the duration of monitoring the first control information in the cycle.
  • the monitoring period information includes at least one of the following items: the number of radio frames included in the period, the number of radio subframes included in the period, and the number of time slots included in the period.
  • the offset information includes at least one of the following: the number of radio frames included in the offset, the number of radio frames included in the offset The number of radio subframes included in the offset, the number of time slots included in the offset, the number of symbols included in the offset, and the number of listening opportunities included in the offset ;
  • the monitoring duration information includes at least one of the following: the number of radio frames included in the duration, the number of radio subframes included in the duration, the number of time slots included in the duration, and the duration including The number of symbols, and the number of listening opportunities included in the duration; wherein, the listening opportunity included in the duration is the target listening opportunity.
  • the method further includes: sending third indication information to the terminal device, where the third indication information is used to indicate the start moment of the period.
  • the third indication information includes at least one of the following items: an identifier of a radio frame, an identifier of a radio subframe, an identifier of a time slot, and an identifier of a symbol.
  • the start listening opportunity included in the period is the first listening opportunity after the starting time among the multiple listening opportunities; or, the starting listening opportunity is the The listening opportunity closest to the start time among the multiple listening opportunities.
  • the method further includes: sending fourth indication information to the terminal device, where the fourth indication information includes at least one of the following: an identifier indicating the TCI state in the first transmission configuration, an identifier corresponding to the first search space The identifier of the cell and the identifier of the BWP corresponding to the first search space; the identifier of the first TCI state is used by the terminal device to determine the beam that monitors the first control information.
  • the method further includes: sending first configuration information to the terminal device, where the first configuration information is used to configure at least two search spaces of the multicast service and at least two search spaces of the multicast service
  • a control resource set, the at least one control resource set includes a first control resource set; the at least two search spaces are associated with the first control resource set, and the at least two search spaces and the first control resource set correspond to the multiple time to monitor.
  • the first indication information includes an identifier of the first search space in the at least two search spaces; the first search space and the first control resource set correspond to target listening timings.
  • the first indication information includes an identifier of at least one TCI state; the at least one TCI state includes a first TCI state, the first TCI state corresponds to the first search space, the first search space and the first TCI state
  • the control resource set corresponds to the target listening timing.
  • the method further includes: sending second configuration information to the terminal device, where the second configuration information is used to configure the first TCI state corresponding to the first search space.
  • the at least one control resource set further includes a second control resource set; the method further includes: sending second indication information to the terminal device, where the second indication information is used to indicate the first search space The associated second control resource set is switched to the first control resource set.
  • the method further includes: sending fourth indication information to the terminal device, where the fourth indication information includes at least one of the following: an identifier of the first TCI state, an identifier of a cell corresponding to the first search space , the identifier of the BWP corresponding to the first search space; the identifier of the first TCI state is used to determine the beam that monitors the first control information.
  • an embodiment of the present application provides a communication device, where the communication device may be a terminal device or a chip provided inside the terminal device.
  • the communication device has the function of implementing the first aspect.
  • the communication device includes modules or units or means (means) corresponding to the steps involved in executing the first aspect, and the functions, units or means may be implemented by software. , or implemented by hardware, or by executing corresponding software by hardware.
  • the communication device includes a processing unit and a communication unit, wherein the communication unit may also be referred to as a transceiver unit, and the communication unit may be used to send and receive signals to realize the communication between the communication device and other devices.
  • the communication unit is used to receive configuration information from the terminal device; the processing unit may be used to perform some internal operations of the communication device.
  • the communication unit is configured to: receive the first indication information, where the first indication information is used to indicate the target monitoring timing of the first control information; the processing unit is configured to monitor the first monitoring timing on the target monitoring timing Control information, where the first control information is used to schedule information of the multicast service; wherein, the target listening opportunity includes at least one listening opportunity among multiple listening opportunities of the first control information.
  • the communication unit is further configured to: receive configuration information, where the configuration information is used to configure the first search space of the multicast service and at least one control of the multicast service A resource set, wherein the at least one control resource set includes a first control resource set; wherein the first search space is associated with the first control resource set, and the first search space and the first control resource set correspond to the multiple listening occasions.
  • the at least one control resource set further includes a second control resource set; the communication unit is further configured to: receive second indication information, where the second indication information is used to indicate the first search The spatially associated second control resource set is switched to the first control resource set.
  • the first indication information includes at least one of the following: (1) monitoring period information, where the monitoring period information is used to indicate a period for monitoring the first control information; (2) partial Shift amount information, the offset information is used to indicate the offset of the target listening timing in the period; (3) Monitoring duration information, the monitoring duration information is used to indicate that the first control is monitored in the period The duration of the message.
  • the monitoring period information includes at least one of the following items: the number of radio frames included in the period, the number of radio subframes included in the period, and the period the number of time slots included, the number of symbols included in the period, and the number of listening opportunities included in the period;
  • the offset information includes at least one of the following: radio frames included in the offset the number of radio subframes included in the offset, the number of time slots included in the offset, the number of symbols included in the offset, and the number of symbols included in the offset.
  • the monitoring duration information includes at least one of the following: the number of radio frames included in the duration, the number of radio subframes included in the duration, and the number of time slots included in the duration , the number of symbols included in the duration, and the number of listening opportunities included in the duration; wherein, the listening opportunity included in the duration is the target listening opportunity.
  • the start time of the cycle is determined according to the received third indication information; or, the start time of the cycle is the end time of receiving the first indication information .
  • the third indication information includes at least one of the following items: an identifier of a radio frame, an identifier of a radio subframe, an identifier of a time slot, and an identifier of a symbol.
  • the start listening opportunity included in the period is the first listening opportunity that is located after the start time among the plurality of listening opportunities; or, the start time
  • the monitoring timing is the monitoring timing closest to the starting time among the multiple monitoring timings.
  • the communication unit is further configured to: receive fourth indication information, where the fourth indication information includes at least one of the following: an identifier of the first TCI state, an identifier of the cell corresponding to the first search space The identifier, the identifier of the BWP corresponding to the first search space; the identifier of the first TCI state is used to determine the beam that monitors the first control information.
  • the communication unit is further configured to: receive first configuration information, where the first configuration information is used to configure at least two search spaces of the multicast service and a at least one control resource set, the at least one control resource set includes a first control resource set; the at least two search spaces are associated with the first control resource set, and the at least two search spaces and the first control resource set correspond to the Multiple listening opportunities.
  • the first indication information includes an identifier of the first search space in the at least two search spaces; the first search space and the first control resource set correspond to target listening timings.
  • the first indication information includes an identifier of at least one TCI state; the processing unit is further configured to: select a first TCI state from the at least one TCI state; according to the correspondence between the TCI state and the search space, determining that the first TCI state corresponds to the first search space; and determining that the listening timing corresponding to the first search space and the first control resource set is the target listening timing.
  • the processing unit is specifically configured to: determine the TCI state used for monitoring the second control information, and the second control information is used to schedule information of the unicast service; according to the TCI state used for monitoring the second control information , select a first TCI state from the at least one TCI state, and the first TCI state is the same as the TCI state used to monitor the second control information; or, determine the beam quality corresponding to the at least one TCI state; according to the at least one TCI state For the beam quality corresponding to one TCI state, a first TCI state is selected from the at least one TCI state, and the beam quality corresponding to the first TCI state is greater than or equal to the beam quality corresponding to other TCI states in the at least one TCI state.
  • the communication device includes a processor, and may further include a transceiver, where the transceiver is configured to send and receive signals, and the processor executes program instructions to complete any possible design in the first aspect above or a method in an implementation.
  • the communication device may further include one or more memories, the memories are used for coupling with the processor, and the memories may store necessary computer programs or instructions for realizing the functions involved in the first aspect above.
  • the processor may execute computer programs or instructions stored in the memory, and when the computer programs or instructions are executed, cause the communication apparatus to implement the method in any possible design or implementation manner of the first aspect.
  • the communication device includes a processor, which may be operative to couple with the memory.
  • the memory may store necessary computer programs or instructions to implement the functions involved in the first aspect above.
  • the processor may execute computer programs or instructions stored in the memory, and when the computer programs or instructions are executed, cause the communication apparatus to implement the method in any possible design or implementation manner of the first aspect.
  • the communication device includes a processor and an interface circuit, wherein the processor is configured to communicate with other devices through the interface circuit, and execute any of the possible designs or implementations of the first aspect above. method.
  • an embodiment of the present application provides a communication device, where the communication device may be an access network device or a chip provided inside the access network device.
  • the communication device has the function of implementing the second aspect.
  • the communication device includes modules or units or means corresponding to the operations involved in the second aspect.
  • the modules, units, or means may be implemented by software, or by It can be realized by hardware, and can also be realized by executing corresponding software by hardware.
  • the communication device includes a processing unit and a communication unit, wherein the communication unit may also be referred to as a transceiver unit, and the communication unit may be used to send and receive signals to realize the communication between the communication device and other devices.
  • the communication unit is used to receive configuration information from the terminal device; the processing unit may be used to perform some internal operations of the communication device.
  • the processing unit is configured to: determine first indication information, where the first indication information is used to indicate a target listening timing of the first control information, and the first control information is used to schedule information about the multicast service
  • the communication unit is used for: sending the first indication information to the terminal device; wherein, the target monitoring timing includes at least one monitoring timing among multiple monitoring timings of the first control information.
  • the communication unit is further configured to: send configuration information to the terminal device, where the configuration information is used to configure the first search space of the multicast service and the multicast At least one control resource set of the service, the at least one control resource set includes a first control resource set; wherein the first search space is associated with the first control resource set, and the first search space and the first control resource set correspond to the multiple Monitor time.
  • the at least one control resource set further includes a second control resource set; the communication unit is further configured to: send second indication information to the terminal device, and the second indication information uses The second control resource set associated with the indicated first search space is switched to the first control resource set.
  • the first indication information includes at least one of the following: (1) monitoring period information, where the monitoring period information is used to indicate a period for monitoring the first control information; (2) partial Shift amount information, the offset information is used to indicate the offset of the target listening timing in the period; (3) Monitoring duration information, the monitoring duration information is used to indicate that the first control is monitored in the period The duration of the message.
  • the monitoring period information includes at least one of the following items: the number of radio frames included in the period, the number of radio subframes included in the period, and the period the number of time slots included, the number of symbols included in the period, and the number of listening opportunities included in the period;
  • the offset information includes at least one of the following: radio frames included in the offset the number of radio subframes included in the offset, the number of time slots included in the offset, the number of symbols included in the offset, and the number of symbols included in the offset.
  • the monitoring duration information includes at least one of the following: the number of radio frames included in the duration, the number of radio subframes included in the duration, and the number of time slots included in the duration , the number of symbols included in the duration, and the number of listening opportunities included in the duration; wherein, the listening opportunity included in the duration is the target listening opportunity.
  • the communication unit is further configured to: send third indication information to the terminal device, where the third indication information is used to indicate the start moment of the period.
  • the third indication information includes at least one of the following items: an identifier of a radio frame, an identifier of a radio subframe, an identifier of a time slot, and an identifier of a symbol.
  • the start listening opportunity included in the period is the first listening opportunity that is located after the start time among the plurality of listening opportunities; or, the start time
  • the monitoring timing is the monitoring timing closest to the starting time among the multiple monitoring timings.
  • the communication unit is further configured to: send fourth indication information to the terminal device, where the fourth indication information includes at least one of the following: the first transmission configuration indicates an identifier of the TCI state, The identifier of the cell corresponding to the first search space and the identifier of the BWP corresponding to the first search space; the identifier of the first TCI state is used by the terminal device to determine the beam that monitors the first control information.
  • the communication unit is further configured to: send first configuration information to the terminal device, where the first configuration information is used to configure at least two search spaces and all search spaces of the multicast service at least one control resource set of the multicast service, the at least one control resource set includes a first control resource set; the at least two search spaces are associated with the first control resource set, the at least two search spaces and the first control resource set
  • the resource set corresponds to the multiple listening occasions.
  • the first indication information includes an identifier of the first search space in the at least two search spaces; the first search space and the first control resource set correspond to target listening timings.
  • the first indication information includes an identifier of at least one TCI state; the at least one TCI state includes a first TCI state, the first TCI state corresponds to the first search space, and the first TCI state corresponds to the first search space.
  • the search space and the first control resource set correspond to target listening timings.
  • the communication device includes a processor, which may be operative to couple with the memory.
  • the memory may store necessary computer programs or instructions to implement the functions involved in the second aspect above.
  • the processor can execute computer programs or instructions stored in the memory, and when the computer programs or instructions are executed, cause the communication apparatus to implement the method in any possible design or implementation manner of the second aspect.
  • the communication device includes a processor and an interface circuit, wherein the processor is configured to communicate with other devices through the interface circuit, and execute any of the possible designs or implementations of the second aspect above. method.
  • the processor may be implemented by hardware or by software.
  • the processor may be a logic circuit, an integrated circuit, etc.; when implemented by software
  • the processor may be a general-purpose processor, which is implemented by reading software codes stored in a memory.
  • the above processors may be one or more, and the memory may be one or more.
  • the memory may be integrated with the processor, or the memory may be provided separately from the processor.
  • the memory and the processor may be integrated on the same chip, or may be separately provided on different chips.
  • the embodiment of the present application does not limit the type of the memory and the manner of setting the memory and the processor.
  • the communication apparatus involved in the third aspect or the fourth aspect may include a memory, or may not include a memory.
  • an embodiment of the present application provides a communication system, where the communication system includes the communication device described in the third aspect and the communication device described in the fourth aspect.
  • the present application provides a computer-readable storage medium, where computer-readable instructions are stored in the computer storage medium, and when the computer reads and executes the computer-readable instructions, the computer is made to execute the above-mentioned first aspect or The method in any possible design of the second aspect.
  • the present application provides a computer program product that, when the computer reads and executes the computer program product, causes the computer to execute the method in any possible design of the first aspect or the second aspect.
  • the present application provides a chip, the chip includes a processor, the processor is coupled to a memory, and is configured to read and execute a software program stored in the memory, so as to implement the above-mentioned first aspect or the second any possible design method of the aspect.
  • the chip further includes the memory.
  • FIG. 1 is a schematic diagram of a network architecture to which an embodiment of the present application is applicable;
  • FIG. 2a is a schematic diagram of a CU-DU separation architecture provided by an embodiment of the present application.
  • FIG. 2b is a schematic diagram of still another CU-DU separation architecture provided by an embodiment of the present application.
  • 3 is an example of parameters of a search space provided by an embodiment of the present application.
  • FIG. 4 is an example of multiple monitoring timings of control information configured by an access network device and an example of time-sharing sending the control information by the access network device through different beams;
  • FIG. 5 is a schematic flowchart corresponding to the communication method provided in Embodiment 1 of the present application.
  • FIG. 6a is an example of a set of control resources associated with switching a first search space provided by an embodiment of the present application
  • FIG. 6b provides an example of grouping provided by this embodiment of the present application.
  • FIG. 7 is an example of a start time and an end time of monitoring on a target monitoring opportunity by a terminal device provided by an embodiment of the present application;
  • FIG. 8 is some examples of target listening timings provided by the embodiments of the present application.
  • FIG. 9 is an example of multiple MAC CE formats sent by the access network device to the terminal device provided by the embodiment of the present application.
  • FIG. 10 is a schematic flowchart corresponding to the communication method provided in Embodiment 2 of the present application.
  • 11 is an example of multiple MAC CE formats sent by an access network device to a terminal device provided by an embodiment of the present application
  • FIG. 12 provides several examples of activating TCI provided by the embodiment of the present application.
  • FIG. 13 provides several examples of activating TCI provided by the embodiment of the present application.
  • FIG. 14 is a possible exemplary block diagram of the apparatus involved in the embodiment of the application.
  • FIG. 15 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • FIG. 16 is a schematic structural diagram of an access network device according to an embodiment of the present application.
  • FIG. 1 is a schematic diagram of a network architecture to which an embodiment of the present application is applied.
  • a terminal device such as a terminal device 1301 or a terminal device 1302
  • the wireless network includes a radio access network (RAN) and a core network (core network, CN); wherein, the RAN may also be called an access network (AN), which is used to access terminal devices to Wireless network, CN is used to manage terminal equipment and provide gateway for communication with DN.
  • RAN radio access network
  • core network core network
  • CN core network
  • AN access network
  • CN is used to manage terminal equipment and provide gateway for communication with DN.
  • the RAN may include one or more access network devices, such as access network device 1101 and access network device 1102 .
  • the CN may include one or more core network elements, such as the core network element 120 .
  • the terminal equipment, access network equipment, and core network network elements are described in detail below.
  • Terminal equipment also known as user equipment (UE) includes equipment that provides voice and/or data connectivity to users, for example, may include handheld devices with wireless connectivity, or processing devices connected to wireless modems .
  • the terminal equipment may communicate with the core network via a radio access network (RAN), and exchange voice and/or data with the RAN.
  • RAN radio access network
  • the terminal equipment may include wireless terminal equipment, mobile terminal equipment, device-to-device communication (device-to-device, D2D) terminal equipment, vehicle-to-everything (V2X) terminal equipment, machine-to-machine/machine-type communication ( machine-to-machine/machine-type communications, M2M/MTC) terminal equipment, Internet of things (Internet of things, IoT) terminal equipment, subscriber unit, subscriber station, mobile station, remote station, access point (access point, AP) ), remote terminal, access terminal, user terminal, user agent, or user equipment, etc.
  • these may include mobile telephones (or "cellular" telephones), computers with mobile terminal equipment, portable, pocket-sized, hand-held, computer-embedded mobile devices, and the like.
  • PCS personal communication service
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • constrained devices such as devices with lower power consumption, or devices with limited storage capacity, or devices with limited computing power, etc.
  • information sensing devices such as barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), and laser scanners.
  • RFID radio frequency identification
  • GPS global positioning system
  • the device for realizing the function of the terminal device may be the terminal device, or it may be a device capable of supporting the terminal device to realize the function, such as a chip system or a combined device or component capable of realizing the function of the terminal device.
  • a chip system may be composed of chips, or may include chips and other discrete devices.
  • An access network device is a node or device that accesses a terminal device to a wireless network, and the access network device may also be called a base station.
  • Access network equipment includes but is not limited to: a new generation base station (generation Node B, gNB), an evolved node B (evolved node B, eNB), a radio network controller (radio network controller, RNC) in the 5G communication system, Node B (node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station ((home evolved nodeB, HeNB) or (home node B, HNB)) , baseband unit (baseBand unit, BBU), transmitting and receiving point (transmitting and receiving point, TRP), transmitting point (transmitting point, TP), or mobile switching center.
  • generation Node B, gNB generation Node B
  • eNB evolved node B
  • RNC radio network controller
  • Node B no
  • the device for implementing the function of the access network device may be the access network device, or may be a device capable of supporting the access network device to realize the function, such as a chip system or a device capable of realizing the function of the access network device
  • the combination device and component of the device can be installed in the access network equipment.
  • the technical solutions provided by the embodiments of the present application are described by taking the device for implementing the functions of the access network equipment as an example of the access network equipment.
  • the interface between the access network device and the terminal device may be a Uu interface (or called an air interface).
  • the names of these interfaces may remain unchanged, or may be replaced with other names, which are not limited in this application.
  • the communication between the access network device and the terminal device follows a certain protocol layer structure.
  • the control plane protocol layer structure may include a radio resource control (radio resource control, RRC) layer, a packet data convergence layer protocol (packet data). convergence protocol, PDCP) layer, radio link control (radio link control, RLC) layer, media access control (media access control, MAC) layer and physical layer;
  • RRC radio resource control
  • PDCP radio link control
  • RLC radio link control
  • media access control media access control
  • user plane protocol layer structure can include PDCP layer, RLC layer, MAC layer and physical layer.
  • the PDCP layer may further include a service data adaptation protocol (SDAP) layer.
  • SDAP service data adaptation protocol
  • the access network device may implement the functions of protocol layers such as RRC, PDCP, RLC, and MAC by one node, or may implement the functions of these protocol layers by multiple nodes.
  • an access network device may include one or more centralized units (centralized units, CUs) and one or more distributed units (distributed units, DUs), and multiple DUs may be centrally controlled by one CU .
  • an interface between a CU and a DU may be referred to as an F1 interface, wherein a control plane (control panel, CP) interface may be an F1-C, and a user plane (user panel, UP) interface may be an F1-U.
  • the CU and DU can be divided according to the protocol layer of the wireless network: for example, as shown in Figure 2a, the functions of the PDCP layer and the above protocol layers are set in the CU, and the functions of the protocol layers below the PDCP layer (such as the RLC layer and the MAC layer, etc.) are set in the DU.
  • the above division of the processing functions of the CU and DU according to the protocol layer is only an example, and can also be divided in other ways, for example, the functions of the protocol layer above the RLC layer are set in the CU, and the RLC layer and the following protocol layers.
  • the function of the CU is set in the DU.
  • the CU or DU can be divided into functions with more protocol layers.
  • the CU or DU can also be divided into partial processing functions with protocol layers. In one design, some functions of the RLC layer and functions of the protocol layers above the RLC layer are placed in the CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are placed in the DU.
  • the functions of CUs or DUs can also be divided according to service types or other system requirements. For example, by delay, the functions whose processing time needs to meet the delay requirements are set in the DU, and do not need to meet the delay. The required functionality is set in the CU.
  • the CU may also have one or more functions of the core network. Exemplarily, the CU can be set on the network side to facilitate centralized management; the DU can have multiple radio frequency functions, or the radio frequency functions can be set remotely. This embodiment of the present application does not limit this.
  • the functions of the CU may be implemented by one entity, or may also be implemented by different entities.
  • the functions of the CU can be further divided, that is, the control plane and the user plane are separated and implemented by different entities, namely the control plane CU entity (ie, the CU-CP entity) and the user plane CU entity. (ie the CU-UP entity), the CU-CP entity and the CU-UP entity can be coupled with the DU to jointly complete the functions of the access network device.
  • the interface between the CU-CP entity and the CU-UP entity may be the E1 interface
  • the interface between the CU-CP entity and the DU may be the F1-C interface
  • the interface between the CU-UP entity and the DU may be the F1-U interface interface.
  • one DU and one CU-UP can be connected to one CU-CP.
  • one DU can be connected to multiple CU-UPs
  • one CU-UP can be connected to multiple DUs.
  • the signaling generated by the CU may be sent to the terminal device through the DU, or the signaling generated by the terminal device may be sent to the CU through the DU.
  • the DU may not parse the signaling, but directly encapsulate it through the protocol layer and transparently transmit it to the terminal device or CU.
  • the sending or receiving of the signaling by the DU includes this scenario.
  • the signaling of the RRC or PDCP layer will eventually be processed as the data of the physical layer and sent to the terminal device, or converted from the received data of the physical layer.
  • the signaling of the RRC or PDCP layer can also be considered to be sent by the DU, or sent by the DU and the radio frequency device.
  • the core network elements in the CN may include access and mobility management function (AMF) network elements, session management function (SMF) network elements, and user plane elements.
  • AMF access and mobility management function
  • SMF session management function
  • UPF user plane function
  • Policy control function policy control function
  • PCF policy control function
  • the network architecture shown in FIG. 1 above can be applied to communication systems of various radio access technologies (RATs), such as 4G (or long term evolution (LTE)) communication systems, It can also be a 5G (or new radio (NR)) communication system, or a transition system between an LTE communication system and a 5G communication system.
  • the transition system can also be called a 4.5G communication system.
  • RATs radio access technologies
  • the network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute limitations on the technical solutions provided by the embodiments of the present application.
  • the evolution of the network architecture and the emergence of new service scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
  • the apparatuses in the following embodiments of the present application may be located in terminal equipment or access network equipment according to the functions implemented by them.
  • the access network device may be a CU, or a DU, or an access network device including a CU and a DU.
  • the 5G communication system will use a higher carrier frequency than LTE (generally, greater than 6GHz), such as 28GHz, 38GHz, or 72GHz frequency band, etc.
  • LTE generally, greater than 6GHz
  • the wireless signal it transmits experiences more severe fading during the space propagation process, and it is even difficult to detect the wireless signal at the receiving end. Therefore, beamforming (BF) technology will be used in the 5G communication system to obtain a beam with good directivity, so as to improve the antenna gain and increase the power in the transmitting direction.
  • a beam mode can also be used to improve the spectral spatial multiplexing rate.
  • a beam can be understood as a communication resource, and the beam can be a wide beam, a narrow beam, or other types of beams. Different beams can be considered as different communication resources, and the same information or different information can be sent through different beams.
  • Beams include sending beams and receiving beams. Sending beams can refer to the distribution of signal strengths in different directions in space after signals are transmitted through antennas. Receive beams can refer to the antenna array that strengthens or weakens wireless signals in different directions in space. Received distribution.
  • the access network device sends information through the sending beam x1, and accordingly, the terminal device can receive the information through the receiving beam x2.
  • the sending beam x1 and the receiving beam x2 can be understood as a beam pair.
  • the above-mentioned sending beam x1 and receiving beam x2 may be collectively referred to as beam x, so it can be understood that the access network equipment sends information through beam x. , correspondingly, the terminal device can receive information through beam x.
  • the access network device In downlink data transmission, when the access network device uses a specific beam to send data to the terminal device, it needs to inform the terminal device of the transmission beam information it uses, so that the terminal device can use the receive beam corresponding to the transmit beam to receive Data sent by an access network device.
  • the access network device may indicate to the terminal device the relevant information of the transmission beam used by the access network device through a transmission configuration indicator (transmission configuration indicator, TCI) field.
  • TCI field includes multiple bits, for example, includes 3 bits, which can represent 8 different values.
  • Each value of the TCI field corresponds to an index (or called an identifier) of a TCI state.
  • the index can identify a TCI state.
  • the TCI state includes a plurality of parameters, through which the relevant information of the transmit beam can be determined.
  • a search space can be associated with a set of control resources.
  • the search space and its associated control resource set may correspond to multiple listening occasions for control information.
  • the control resource set determines the frequency domain resources of the listening timing, that is, control information can be transmitted on the frequency domain resources corresponding to the control resource set, and the frequency domain resources corresponding to the control resource set can include multiple resource blocks (resource blocks, RBs).
  • a control resource set can be configured with one or more TCI states.
  • the control information corresponding to the control resource set may be transmitted by using one TCI state among the one or more TCI states configured for the control resource set, and which TCI state to use may be transmitted through signaling sent by the access network device. activation. That is to say, although the access network device is configured with multiple TCI states for a control resource set, these TCI states are not activated (not effective), and can only take effect after being activated through signaling.
  • the search space determines the time-domain resources for transmitting the listening timing, and the search space can be configured with some time-domain information, such as: period (for the convenience of distinction, the period here is referred to as the first period, and the first period is the period for monitoring the search space.
  • Time interval the unit can be time slot); time slot offset (that is, the time slot offset between the start of the first cycle and the actual monitoring search space, and the time slot offset is less than the value of the first monitoring cycle ); the first duration (configured through the duration parameter, that is, the time for continuous monitoring of the search space, which may include multiple time slots, and the number of time slots included is less than the value of the first monitoring period); the time domain starting position (ie In each time slot, the time domain start position corresponding to the control resource set associated with the search space), each time domain start position can be understood as the time domain start position of a listening opportunity.
  • the meaning of each parameter of the control resource set and the search space is described with specific examples.
  • the first period is 10 time slots
  • the time slot offset is 3 time slots
  • the first duration is 2 time slots
  • the time domain start position is symbol 0 in one time slot
  • the second duration of the control resource set (configured by the duration parameter of the control resource set, that is, indicating the number of symbols included in the listening opportunity) is 2 symbols.
  • Multicast transmission technology is a transmission technology in which one sender transmits data and multiple receivers receive data; for example, an access network device sends data, and multiple terminal devices receive data.
  • a possible multicast transmission technology is a single cell point to multipoint (single cell point to multipoint, SC-PTM) technology.
  • SC-PTM single cell point to multipoint
  • PDSCH physical downlink shared channel
  • the access network device can pre-configure the association relationship between the multicast service and the group-radio network temporary identity (G-RNTI), and each multicast service can be associated with a G-RNTI.
  • G-RNTI group-radio network temporary identity
  • the access network device can send control information (such as downlink control information (DCI)) carried on the physical downlink control channel (PDCCH) to the terminal device, and the DCI is used for Scheduling a unicast PDSCH carrying a service (this service may be a unicast service or a multicast service), the DCI may be scrambled by a cell-radio network temporary identity (C-RNTI); accordingly, After detecting the DCI according to the C-RNTI, the terminal device may receive the unicast PDSCH according to the scheduling information included in the DCI.
  • DCI downlink control information
  • PDCH physical downlink control channel
  • C-RNTI cell-radio network temporary identity
  • the access network device can send DCI to multiple terminal devices interested in the multicast service, where the DCI is used to schedule the information of the multicast service, and the information of the multicast service can be carried in the In the multicast PDSCH, the DCI can be scrambled by the G-RNTI associated with the multicast service; accordingly, after multiple terminal devices detect the DCI according to the G-RNTI associated with the multicast service, they can information to receive multicast service information.
  • the coverage of the access network equipment includes multiple terminal equipments, among which terminal equipment 1, terminal equipment 2, and terminal equipment 3 are all interested in multicast services. ;
  • the access network device can configure multiple monitoring opportunities for the control information for the terminal equipment 1, the terminal equipment 2, and the terminal equipment 3, and the control information is used to schedule the information of the multicast service; and then the terminal equipment 1, the terminal equipment Both the device 2 and the terminal device 3 monitor control information on multiple monitoring occasions.
  • FIG. 4 a plurality of monitoring timings (eg, monitoring timing 1 to monitoring timing 6 ) of the control information configured by the access network device are illustrated.
  • the access network equipment can send control information through different beams at different times to complete the broadcast beam coverage of the cell; for example, continue to refer to Figure 4, the access network equipment can Beam 1 is used to send control information at a certain listening time, beam 2 is used to send control information at a certain listening time in the T2 time period, and beam 3 is used to send control information at a certain listening time in the T3 time period.
  • terminal device 1 is located within the coverage area of beam 1
  • terminal device 2 is located within the coverage area of beam 2
  • terminal device 3 is located within the coverage area of beam 3 .
  • the terminal device 3 since the access network device does not use the beam 3 to send control information during the T1 time period and the T2 time period, the terminal device 3 monitors during the T1 time period and the T2 time period.
  • the control information will not be monitored at the timing, but may be monitored at the monitoring timing in the T3 time period. That is to say, the monitoring performed by the terminal device 3 at the monitoring timings in the T1 time period and the T2 time period is unnecessary monitoring.
  • the monitoring performed by the terminal device 1 on the monitoring timings in the T2 time period and the T3 time period is unnecessary monitoring
  • the monitoring by the terminal device 2 on the monitoring timings in the T1 time period and the T3 time period is unnecessary monitoring.
  • an embodiment of the present application provides a communication method for reducing unnecessary monitoring by a terminal device and reducing power consumption of the terminal device.
  • the method provided in this embodiment of the present application may include: the terminal device receives first indication information, where the first indication information is used to indicate the target monitoring timing of the first control information, and then the terminal device may monitor the first monitoring timing on the target monitoring timing.
  • Control information where the first control information is used for scheduling multicast service information.
  • the target monitoring timing includes at least one monitoring timing among multiple monitoring timings of the first control information, or, in other words, the target monitoring timing includes a part of the monitoring timings among the multiple monitoring timings of the first control information, or, in other words, the target monitoring timing
  • the timing includes N listening timings among the M listening timings of the first control information, where N is less than M, and both M and N are positive integers.
  • the target listening timing includes part of the listening timing set of the first control information Monitor time.
  • the access network device sends the first indication information to the terminal device to indicate the target monitoring time, the terminal device can monitor at the target monitoring time. In terms of monitoring at all monitoring timings, unnecessary monitoring of the terminal device can be effectively reduced, and the power consumption of the terminal device can be reduced.
  • the method is applied to the system architecture shown in FIG. 1 as an example.
  • the method may be performed by two communication apparatuses, such as a first communication apparatus and a second communication apparatus, wherein the first communication apparatus may be an access network device or can support an access network device to implement the method
  • the communication device with the required functions can also be other communication devices, such as a chip or a chip system.
  • the second communication device may be a terminal device or a communication device capable of supporting the functions required by the terminal device to implement the method, and of course may also be other communication devices, such as a chip or a chip system.
  • the method is performed by an access network device and a terminal device as an example, that is, the first communication device is an access network device and the second communication device is a terminal device as an example.
  • the access network device described below for executing the embodiment shown in FIG. 5 or FIG. 10 may be the access network device 1101 shown in FIG. 1 .
  • the terminal device described below for executing the embodiment shown in FIG. 5 or FIG. 10 may be the terminal device 1301 shown in FIG. 1 .
  • the coverage of the access network device may include multiple terminal devices interested in multicast services (such as the first multicast service).
  • the access network will be The communication between the device and one of the terminal devices interested in the first multicast service is described as an example.
  • FIG. 5 is a schematic flowchart corresponding to the communication method provided in Embodiment 1 of the present application. As shown in Figure 5, including:
  • An access network device sends configuration information, where the configuration information is used to configure a first search space of a first multicast service and at least one control resource set of the first multicast service; correspondingly, a terminal device may receive the configuration information.
  • the configuration information may configure a first search space for the first multicast service and a first set of control resources for the first multicast service, and may also configure the first search space to be associated with the first set of control resources.
  • the configuration information may include the configuration of the first search space (SearchSpace config), and the configuration of the first search space may include the controlResourceSetId parameter.
  • the controlResourceSetId parameter includes the identifier of the first control resource set, it indicates that the first search space is the same as the first search space. Controls resource collection associations.
  • the terminal device may determine, according to the configuration information, multiple listening opportunities for the first search space and the first control resource set corresponding to the first control information.
  • the first control information may be, for example, DCI, which is used to schedule information of the first multicast service, the information of the first multicast service may include uplink information and/or downlink information of the first multicast service, and the information may include data and /or control signaling, etc., which are not specifically limited.
  • the configuration information may configure the first search space of the first multicast service and at least two control resource sets of the first multicast service, and may also configure the first search space and the at least two control resource sets A set of control resources (such as a second set of control resources) associated with .
  • the terminal device may determine, according to the configuration information, a plurality of listening timings corresponding to the first control information in the first search space and the second control resource set (for the convenience of distinction, the listening timings here may be referred to as original listening timings), see FIG. 6a.
  • the access network device may subsequently send second indication information to the terminal device, where the second indication information is used to instruct the second control resource set associated with the first search space to be switched to another one of the at least two control resource sets.
  • a set of control resources (such as the first set of control resources), where handover can also be described as an update.
  • the terminal device may determine, according to the second indication information, multiple listening opportunities for the first search space and the first control resource set corresponding to the first control information.
  • the second indication information is used to indicate that the second control resource set associated with the first search space is switched to the first control resource set, and it can also be understood that the second indication information is used to indicate that the first search space is associated with the first control resource
  • the second indication information may include the identifier of the first control resource set. In this way, the access network device can flexibly control the set of control resources associated with the first search space, thereby increasing the flexibility of the access network device regulation.
  • the access network device may send the second indication information to the terminal device through a MAC control element (control element, CE) or DCI.
  • CE control element
  • the access network device may also send second indication information to the terminal device, which is not shown in Figure 6a for the time being;
  • the number of control resource sets associated with the first search space is not limited.
  • the access network device can send the configuration information to the terminal device in various ways.
  • the access network device can send the multicast configuration information corresponding to the first multicast service to the terminal device through an RRC message or a system message.
  • the multicast configuration information may include the above configuration information, and further, the multicast configuration information may further include the G-RNTI associated with the first multicast service and/or bandwidth part (BWP) information corresponding to the G-RNTI.
  • the BWP information may include the identifier of the BWP.
  • the BWP is BWP1.
  • the frequency domain resources corresponding to the control resource set configured in the configuration information are all located within the range of BWP1.
  • S501 may be an optional step, for example, the multiple listening timings of the first control information may be predefined, and in this case, S501 may not be performed.
  • the access network device sends first indication information to the terminal device, where the first indication information is used to indicate the target monitoring timing of the first control information; correspondingly, the terminal device may receive the first indication information.
  • the terminal device monitors the first control information at the target monitoring timing.
  • the first indication information may indicate the target listening timing of the first control information in various manners, and two possible implementation manners are described below, namely implementation manner 1 and implementation manner 2.
  • the first indication information may include at least one of the following: monitoring period information, offset information, and monitoring duration information.
  • the first indication information may include monitoring period information and offset information.
  • the monitoring duration information may be predefined by the protocol; for another example, the first indication information may include offset information and monitoring duration information.
  • the monitoring period information may be predefined by the protocol.
  • the monitoring period information may be used to indicate the second period, and the second period may be the period during which the terminal device monitors the first control information.
  • the second period may include at least one of the following: one or more radio frames, one or more radio subframes, one or more time slots, one or more symbols, and one or more listening occasions.
  • the second period (which can be any second period) may include one or more radio frames.
  • the monitoring period information may include the number of radio frames included in the second period;
  • the second period may include one or more radio subframes.
  • the monitoring period information may include the number of radio subframes included in the second period; or, the second period may include one or more time slots.
  • the listening period information may include the number of time slots included in the second period; or, the second period may include one or more symbols, in this case, the listening period information may include the number of time slots included in the second period.
  • the number of symbols; or, the second cycle may include one or more listening opportunities, in this case, the listening cycle information may include the number of listening opportunities included in the second cycle.
  • the second period may be equal to the duration for the access network device to perform one beam scan.
  • the access network device can use a total of 8 beams (for example, beam 1 to beam 8), then the access network device starts from beam 1 Starting the rotation to the end of beam 8 may be referred to as a beam scan.
  • the offset information may be used to indicate the offset of the target listening timing in the offset.
  • the offset may include at least one of the following: one or more radio frames, one or more radio subframes, one or more time slots, one or more symbols, and one or more listening occasions.
  • the offset may include one or more radio frames.
  • the offset information may include the number of radio frames included in the offset; or, the offset may include one or more radio frames.
  • Radio subframes in this case, the offset information may include the number of radio subframes included in the offset; or, the offset may include one or more time slots, in this case, the offset.
  • the information may include the number of time slots included in the offset; or, the offset may include one or more symbols, in this case, the offset information may include the number of symbols included in the offset; Alternatively, the offset may include one or more listening opportunities. In this case, the offset information may include the number of listening opportunities included in the offset.
  • the monitoring duration information may be used to indicate the monitoring duration, and the monitoring duration may be the duration that the terminal device monitors the first control information in the second period.
  • the listening duration may include at least one of the following: one or more radio frames, one or more radio subframes, one or more time slots, one or more symbols, and one or more listening occasions.
  • the monitoring duration may include one or more radio frames.
  • the monitoring duration information may include the number of radio frames included in the duration; or, the monitoring duration may include one or more radio subframes.
  • the monitoring duration information may include the number of radio subframes included in the duration; or, the monitoring duration may include one or more time slots, in this case, the monitoring duration information may include the duration included in the duration.
  • the number of time slots; or, the monitoring duration may include one or more symbols, in this case, the monitoring duration information may include the number of symbols included in the duration; or, the monitoring duration may include one or more monitoring opportunities , in this case, the monitoring duration information may include the number of monitoring opportunities included in the duration.
  • the monitoring timing included in the duration is the target monitoring timing.
  • the listening period information includes the number of listening opportunities included in the second cycle
  • the identifier of the monitoring occasion may be the number of the monitoring occasion, and the number may be negotiated in advance by the access network device and the terminal device, which is not specifically limited. For details about the target listening timing indicated by the first indication information, reference may be made to some examples described later in FIG. 8 .
  • the multiple listening occasions of the first control information may belong to at least two groups, the number of listening occasions included in each group may be the same, and the at least two groups may be periodically cycled according to the third period; refer to As shown in Fig. 6b, assuming that the multiple listening opportunities of the first control information are divided into group 1 and group 2, each group includes 2 listening opportunities, and each listening opportunity only belongs to one group, then the third period may include 4 Monitor time. It should be noted that the number of listening opportunities included in each group described in the embodiments of the present application may refer to the number of listening opportunities included in each group in a third period.
  • the first indication information is used to indicate the first group in the at least two groups, and the listening timings included in the first group are all target listening timings.
  • the first indication information may include index information of the first group.
  • the number of groups of multiple listening occasions in the first control information is 4 (respectively, group 1, group 2, group 3, and group 4), then the index information of each group may include 2 bits.
  • the value is 00, it means group 1; when the value of 2 bits is 01, it means group 2; when the value of 2 bits is 10, it means group 3; when the value of 2 bits is 11, it means group 3.
  • the index information of the first group included in the first indication information is 00, the first group is group 1, and the listening timings included in group 1 in each third period are the target listening timings.
  • the first indication information may include 4 bits, which are respectively represented by In order to indicate whether the 4 packets include the target listening timing, the 4 bits correspond to the 4 packets one-to-one (for example, the first bit corresponds to packet 1, the second bit corresponds to packet 2, the third bit corresponds to packet 3, and the fourth bit corresponds to packet 3. The bits correspond to packet 4).
  • the listening timing included in the group corresponding to the bit is not the target listening timing (that is, the terminal device does not need to monitor the listening timing included in the packet); If the value of this bit is 1, it means that the listening timings included in the packet corresponding to this bit are all the target listening timings.
  • the value of the 4 bits included in the first indication information is 1000, it means that the first group indicated by the first indication information is group 1, and the group 1 in each third period includes The monitoring timings are all target monitoring timings.
  • the first indication information may include offset information of the first packet.
  • the number of groups to which multiple listening opportunities of the first control information belong is 4, and the offset information of the first group may include 2 bits. For example, when the value of the 2 bits is 00, it indicates the offset of the first group.
  • the shift amount is 0 (the first grouping is the first grouping of 4 bits at this time); when the value of the 2 bits is 01, it means that the offset of the first grouping is 1 (the first grouping at this time is The second group of 4 bits); when the value of 2 bits is 10, it means that the offset of the first group is 2 (the first group is the third group of 4 bits at this time); When the value of 2 bits is 11, it indicates that the offset of the first group is 3 (in this case, the first group is the fourth group of 4 bits).
  • the offset indicated by the offset information of the first group may be any one of 0, 1, . . . N-1;
  • the offset of the first group may be 0, 1, 2, or 3.
  • the offset of the first group is 0.
  • each packet may include one monitoring opportunity, and the identification of the monitoring opportunity may be the number of the monitoring opportunity, and the number may be pre-negotiated by the access network device and the terminal device, which is not specifically limited.
  • the access network device may send at least one of the following to the terminal device through MAC CE or DCI: the number of groups to which the multiple listening occasions of the first control information belong, the number of groups included in each group The number of monitoring opportunities in the third cycle, and the number of monitoring opportunities included in the third cycle.
  • the access network device can flexibly adjust information such as the number of groups, which is more conducive to the regulation of the access network device.
  • the information may also be pre-defined by a protocol or pre-configured by an access network device, which is not specifically limited.
  • the access network device can indicate the target monitoring timing from various possible angles (such as radio frame, subframe, time slot, symbol, monitoring timing, etc.), and the implementation is more flexible;
  • the access network device may use a relatively simple manner to indicate the target monitoring timing (for example, the target monitoring timing can be indicated by indicating a packet), thereby saving transmission resources.
  • implementation mode 1 is used as an example for description, and implementation mode 2 can be referred to for processing.
  • the access network device may send the first indication information to the terminal device through an RRC message, MAC CE or DCI.
  • the access network device may send the first indication information to the terminal device through an RRC message, MAC CE or DCI.
  • the access network device can send the monitoring period information, offset information and monitoring duration information through the same message; Send the monitoring period information, the offset information and the monitoring duration information to the terminal device.
  • the access network device can also send the monitoring period information, offset information, and monitoring duration information through different messages; for example, the access network device sends the monitoring period information through an RRC message, and sends the offset to the terminal device through MAC CE or DCI information and monitoring duration information.
  • the terminal device may perform monitoring at the target monitoring timing in each of the plurality of second periods.
  • the terminal device can also determine the start time of the second cycle, and the start time of the second cycle can be understood as the start time of the first second cycle (for example, the second cycle 1) in the plurality of second cycles, In other words, the start time of the second cycle is used for the terminal device to determine the start time of monitoring on the target monitoring opportunity.
  • the terminal device monitors on each monitoring time of the first control information; after the start time, the terminal device monitors on the target monitoring time of the first control information, and no longer listens on the non-target monitoring time. to monitor.
  • the start time of other second cycles after the first second cycle can be obtained according to the start time of the first second cycle, for example, the start time of the second cycle 2 is the start time of the first cycle 1 Time plus the duration of the second cycle.
  • the access network device may indicate the start time of the second cycle to the terminal device, and there may be various specific indication manners.
  • the access network device may send third indication information to the terminal device, and accordingly, the terminal device may receive the third indication information, where the third indication information is used to indicate the start time of the second cycle, and then the terminal device may The start time of the second cycle is determined according to the third indication information; this indication manner may be understood as an explicit indication manner.
  • the third indication information may include at least one of the following items: an identifier of a radio frame, an identifier of a radio subframe, an identifier of a time slot, and an identifier of a symbol.
  • the start moment of the second period may be the boundary of the radio frame; when the third indication information includes an identifier of a radio subframe, the start time of the second period The moment may be the boundary of the wireless subframe; when the third indication information includes the identifier of the time slot, the start moment of the second cycle may be the boundary of the time slot; when the third indication information includes the identifier of the symbol, the second The start of the period can be the boundary of the symbol.
  • the start moment of the second period may be the boundary of the radio subframe in the radio frame.
  • Other cases can refer to the processing.
  • the above-mentioned boundary may be a start boundary or an end boundary.
  • the start boundary of a radio frame may be the start position of the radio frame or the end position of the previous radio frame of the radio frame.
  • the end boundary of can be the end position of the radio frame or the start position of the next radio frame of the radio frame.
  • the identifier of the radio frame is a system frame number (system frame number, SFN).
  • the start moment of the second cycle may be the boundary of SFN#3 , such as the start boundary of SFN#3 (ie the start position of SFN#3 or the end position of SFN#2), or the end boundary of SFN#3 (ie the end position of SFN#3 or the end position of SFN#4) starting point).
  • the start boundary of SFN#3 ie the start position of SFN#3 or the end position of SFN#2
  • the end boundary of SFN#3 ie the end position of SFN#3 or the end position of SFN#4 starting point.
  • the start time of the second cycle may be the time of the second radio subframe in SFN#3.
  • the boundary for example, can be the start boundary of the second wireless subframe in SFN#3 (that is, the end position of the first wireless subframe in SFN#3 or the start of the second wireless subframe in SFN#3 start position), or the end boundary of the 2nd radio subframe in SFN#3 (that is, the end position of the 2nd radio subframe in SFN#3 or the start of the 3rd radio subframe in SFN#3 starting position).
  • the access network device may send the third indication information to the terminal device in many ways, for example, the access network device may send the third indication information to the terminal device through an RRC message, MAC CE or DCI.
  • the access network device may implicitly indicate the start time of the second cycle by sending the first indication information to the terminal device.
  • the terminal device may receive the first indication information, and determine that the end time of receiving the first indication information is the start time of the second cycle.
  • the end moment of receiving the first indication information may refer to the end boundary of the time unit where the first indication information is located, for example, the time unit where the first indication information is located may be a radio frame, a radio subframe, a time slot or a symbol, etc.
  • the end moment of receiving the first indication information may refer to the end boundary of the time slot where the first indication information is located.
  • the access network device may indicate to the terminal device that the start time of the second cycle is the same as the start time of the first search space.
  • the starting moment of the second cycle may also be predefined by the protocol.
  • the terminal device determines the start time of the second cycle, it can directly determine the first second cycle according to the start time of the second cycle and the duration of the second cycle.
  • the start time of the second cycle The start time may be understood as an absolute start time (in this case, the start time may be the start time of the second cycle).
  • the terminal device may first determine the start time of the first second cycle according to the start time of the second cycle (in this case, the start time may be the start time of monitoring start boundary), and then determine the first second cycle according to the initial listening timing and the number of listening opportunities included in the second cycle; in this case, the terminal device determines according to the start time of the second cycle
  • start listening timing of the first second period There are many ways to start listening timing of the first second period.
  • the terminal device can determine the first listening timing after the starting moment of the second period (the listening timing is the listening timing of the first control information)
  • the terminal device may determine the monitoring timing closest to the start time of the second cycle (the monitoring timing is the monitoring timing of the first control information) as the starting monitoring timing.
  • the listening timing closest to the start time of the second cycle may be located before the start time of the second cycle, or may also be located after the start time of the second cycle.
  • the access network device may also indicate the start monitoring timing to the terminal device (no longer indicates the start time of the second cycle), for example, the access network device sends the start monitoring time to the terminal device.
  • the start time may be the start boundary of the start monitoring opportunity.
  • the terminal device can determine the start time for monitoring on the target monitoring timing.
  • the start monitoring timing For the method of determining the start monitoring timing, reference may be made to the above description, which will not be repeated.
  • the terminal device may determine the start time of listening on the target listening opportunity, and, for example, the terminal device may also determine the end time of listening on the target listening opportunity. Wherein, after the start time and before the end time, the terminal device can monitor on the target monitor timing, and no longer monitor on the non-target monitor timing; after the end time, the terminal device can monitor the first control information on each monitor timing monitor (i.e. restore to the state before the startup time).
  • the access network device may send first duration information to the terminal device, where the first duration information is used to indicate the first duration, and then the terminal device can After a period of time, determine the end time.
  • the first duration may include at least one of the following: one or more radio frames, one or more radio subframes, one or more time slots, one or more symbols, and one or more listening opportunities.
  • the access network device may send the first duration information to the terminal device in a variety of ways.
  • the access network device may send the first duration information to the terminal device through an RRC message, MAC CE or DCI.
  • the access network device may send the third indication information and the first duration information to the terminal device through the same message, or may also send the third indication information and the first duration information to the terminal device through different messages.
  • the access network device may indicate the end time to the terminal device, for example, the access network device may send indication information to the terminal device (for the convenience of distinction, referred to as the fifth indication information), the fifth indication information indicates the end time.
  • the fifth indication information may include at least one of the following items: an identifier of a radio frame, an identifier of a radio subframe, an identifier of a time slot, and an identifier of a symbol.
  • the end time when the fifth indication information includes the identifier of the radio frame, the end time may be the start boundary or the end boundary of the radio frame; when the fifth indication information includes the identifier of the radio subframe, the end time may be the radio frame The start boundary or end boundary of the subframe; when the fifth indication information includes the identifier of the time slot, the end time can be the start boundary or end boundary of the time slot; when the fifth indication information includes the identifier of the symbol, the end time Can be the start or end boundary of the symbol.
  • the access network device may send the fifth indication information to the terminal device in a variety of ways, for example, the access network device may send the fifth indication information to the terminal device through an RRC message, MAC CE or DCI.
  • the access network device may send the third indication information and the fifth indication information to the terminal device through the same message, or may also send the third indication information and the fifth indication information to the terminal device through different messages.
  • the access network device may send an end indication to the terminal device, and after receiving the end indication, the terminal device may reply with a confirmation message to the access network device.
  • the terminal device can stop the mechanism of monitoring at the target monitoring timing when replying the confirmation message to the access network device, that is to say, the time when the terminal device replies the confirmation message to the access network device is the target monitoring timing The end time for monitoring on.
  • the access network device can send the end indication to the terminal device in various manners, such as sending the end indication to the terminal device through DCI or MAC CE.
  • the access network device can flexibly send the end indication to the terminal device; and because the terminal device can stop monitoring at the target monitoring time when replying to the confirmation message, it can effectively avoid the terminal device and the connection.
  • the terminal device can, according to the first indication information, perform multiple second periods (for example, the second period 1, the second period In each second cycle of cycle 2 and second cycle 3), the target monitoring timing is determined according to the offset and the monitoring duration.
  • the terminal device may determine multiple listening timings of the first control information according to the configuration information (and optionally the second indication information). As shown in (a) of FIG. 8 .
  • Example 1 Referring to (b) in FIG. 8, it is assumed that the start time of the second cycle (ie the start time of the second cycle 1) is the end time of the time slot 1, and the second cycle includes 4 time slots, The offset is 1 time slot, and the listening duration includes 1 time slot.
  • the terminal device can determine that the first listening time after time slot 2 is the first time in the second cycle 1. A target monitoring time is obtained, and then other target monitoring time in the second period 1 can be determined in combination with the monitoring duration. In this way, the terminal device can determine that the listening timings located in the time slot 3 and the time slot 7 (there are other time slots in the future, which are not shown for the time being) are the target listening timings.
  • Example 2 Suppose the start time of the second cycle (that is, the start time of the second cycle 1) is the end time of time slot 0, the second cycle includes 6 listening opportunities, the offset is 2 listening opportunities, and the listening duration is If there are two listening timings, the terminal device may determine the starting monitoring timing of the second period 1 according to the starting moment of the second period 1.
  • the starting monitoring timing of the second period 1 may be the first listening timing in the The first listening opportunity after the start time of the second cycle 1, in this case, see (c) in FIG. 8; and the terminal device can determine the third listening opportunity and the first listening opportunity in each second cycle
  • the four listening timings are target listening timings.
  • the start listening timing of the second cycle 1 may be the listening timing closest to the start time of the second cycle 1 among the multiple listening opportunities. In this case, see (d) in FIG. 8 ; and then The terminal device may determine the third monitoring opportunity and the fourth monitoring opportunity in each second period as the target monitoring opportunity.
  • the access network device may also send fourth indication information to the terminal device, and the fourth indication information may include at least one of the following: The identifier, the identifier of the first control resource set, and the identifier of the first TCI state.
  • the fourth indication information may include at least one of the following items: an identifier of the first search space, and an identifier of the BWP corresponding to the first search space.
  • the identity of the cell corresponding to the first search space (that is, the identity of the serving cell) is used to indicate the cell to which the MAC CE is applicable.
  • the identifier of the first control resource set is used to indicate that the control resource set associated with the first search space is switched to the first control resource set.
  • the identifier of the first TCI state is used to indicate that the TCI state applicable to the first control resource set is the first TCI state, or the TCI state activated for the first control resource set is the first TCI state, and the first TCI state can be used for
  • the terminal device determines the beam for monitoring the first control information, that is, the terminal device can use the corresponding beam to monitor the first control information according to the identifier of the first TCI state.
  • the access network device may also send the identifiers of at least two TCI states to the terminal device, and the terminal device selects the first TCI state from the at least two TCI states, and then according to the first TCI state
  • the access network device may also send the identifiers of at least two TCI states to the terminal device, and the terminal device selects the first TCI state from the at least two TCI states, and then according to the first TCI state
  • the terminal device has a serving cell
  • the access network device configures the terminal device with multiple listening occasions of the first control information on the serving cell (a set of first search space and its associated first control resources). (determined by other search spaces and their associated control resource sets); in this case, the access network device may send the identification of the first search space and/or the first search space to the terminal device. or the identifier of the first control resource set, so that the terminal device can know that the first indication information is used to indicate the first search space and the target listening timing of the first control information corresponding to the first control information, rather than the target of other control information. Monitor time.
  • the terminal device can also determine the target listening timing of the first control information by using the first indication information to indicate the first control information according to the second indication information. , in this case, the fourth indication information sent by the access network device may no longer include the identifier of the first control resource set.
  • the access network device is configured with multiple listening opportunities for the first control information and multiple listening opportunities for other control information for the terminal device, they are respectively located on different BWPs of the serving cell, such as multiple listening opportunities for the first control information. It is located in BWP1 (that is, the BWP corresponding to the first search space), and the multiple listening timings of other control information are located on other BWPs, the access network device can send the identifier of BWP1 to the terminal device, so that the terminal device can know the first
  • the indication information is used to indicate the target monitoring timing of the first control information, but not the target monitoring timing of other control information.
  • the terminal device may have multiple serving cells, and the access network device configures the terminal device on serving cell 1 with multiple listening occasions of the first control information (consisting of the first search space and its associated first (determined by the control resource set), and configure multiple listening opportunities for other control information for the terminal device on other serving cells (determined by other search spaces and their associated control resource sets); in this case, the access network device can also Send the identification of the serving cell 1 (that is, the cell corresponding to the first search space) to the terminal device, so that the terminal device can know the first indication information is used to indicate the target monitoring timing of the first control information, rather than the target monitoring of other control information opportunity.
  • the access network device can also Send the identification of the serving cell 1 (that is, the cell corresponding to the first search space) to the terminal device, so that the terminal device can know the first indication information is used to indicate the target monitoring timing of the first control information, rather than the target monitoring of other control information opportunity.
  • the access network device may send the first indication information to the terminal device, and optionally, may also send other possible information, such as the second indication information, the third indication information, and the fourth indication information.
  • the access network device can send at least one of the following to the terminal device: (1) monitoring period information; (2) ) offset information; (3) monitoring duration information; (4) start time information of the second cycle; (5) identification of the first control resource set; (6) identification of the first TCI state; (7) service The identification of the cell; (8) the identification of the first search space; (9) the identification of the BWP corresponding to the first search space.
  • the access network device can send at least one of (1) to (9) to the terminal device through the same message; or, it can also send at least one of (1) to (9) to the terminal device through different messages. item.
  • Example 1 the access network device may send (1), (2), (3) and (5) to the terminal device through the first MAC CE, where (1), (2) and (3) may be collectively referred to as targets
  • the position indication of the listening opportunity see (a) in FIG. 9 , is an example of the format of the first MAC CE.
  • the first MAC CE may also include a reserved (reserved) field, and the value of the reserved bit may be 0.
  • Example 2 the access network device may send (1), (2), (3), (5) and (7) to the terminal device through the second MAC CE, see (b) in FIG. 9 , which are the second MAC Format example of CE.
  • Example 3 the access network device may send (1), (2), (3), (5), (6) and (7) to the terminal device through the third MAC CE, see (c) in FIG. 9 , It is an example of the format of the third MAC CE. It should be noted that, in the embodiments of the present application, description is made by taking an example that the identifier of the TCI state includes 7 bits.
  • Example 4 when the terminal device is interested in multiple multicast services, the access network device can indicate to the terminal device the target listening timing of the control information of the multiple multicast services through the same MAC CE (such as the fourth MAC CE). .
  • the MAC CE such as the fourth MAC CE.
  • FIG. 9 it is an example of the format of the fourth MAC CE; wherein, in the fourth MAC CE, the identifier 1 of the first control resource set and the position indication 1 of the target listening opportunity may correspond to the first For the multicast service, the identifier 2 of the first control resource set and the location indication 2 of the target listening time may correspond to the second multicast service, and the identifier 3 of the first control resource set and the location indication 3 of the target listening time may correspond to the third multicast service. Multicast services, and so on.
  • an extension indication field can be added to the fourth MAC CE, and the extension field is used to indicate the fourth MAC CE.
  • the MAC CE still have the identifier of the first control resource set corresponding to the multicast service and the location indication of the target listening time, or the extension field is used to indicate the identity of the first control resource set and the target listening time before the extension field.
  • the location indicates whether the identifier of the first control resource set of the last multicast service and the location indication of the target listening time.
  • the extension field can be represented by the E field.
  • This field can include 1 bit. When the value of this bit is 1, it means that there is at least one identifier of the first control resource set corresponding to the multicast service in the fourth MAC CE and the target monitoring The location indication of the opportunity; when the value of this bit is 0, it means that there is no identity of the first control resource set corresponding to other multicast services in the fourth MAC CE and the location indication of the target listening opportunity.
  • the fourth MAC CE may further include a reserved field, and the value of the reserved bit may be 0.
  • FIG. 9 is only several possible examples, and the number of bits occupied by various pieces of information is not limited in this embodiment of the present application.
  • the access network device can configure a search space and at least one control resource set for the terminal device, and the search space and its associated control resource set correspond to multiple listening occasions of the first control information; and then the access network device can Divide the multiple listening timings into different groups, and then instruct the terminal device to monitor on one of the groups (the group including the listening timing is the target listening timing), so as to effectively reduce the unnecessary monitoring of the terminal equipment and reduce the power consumption.
  • FIG. 10 is a schematic flowchart corresponding to the communication method provided in Embodiment 2 of the present application. As shown in Figure 10, including:
  • the access network device sends first configuration information, where the first configuration information is used to configure at least two search spaces of the first multicast service and at least one control resource set of the first multicast service; correspondingly, the terminal device may receive configuration information.
  • the first configuration information may configure at least two search spaces for the first multicast service and a first set of control resources for the first multicast service, and may also configure at least two search spaces and the first set of control resources association. Furthermore, the terminal device may determine, according to the configuration information, at least two search spaces and multiple listening timings of the first control resource set corresponding to the first control information.
  • the first configuration information may configure at least two search spaces for the first multicast service and at least two control resource sets for the first multicast service, and may further configure the first search space and at least two control resources
  • a control resource set (such as a second control resource set) in the resource set is associated.
  • the terminal device may determine, according to the configuration information, at least two search spaces and multiple listening timings corresponding to the first control information in the second control resource set (for convenience of distinction, the listening timings here may be referred to as original listening timings).
  • the access network device may subsequently send second indication information to the terminal device, where the second indication information is used to instruct the second control resource set associated with the at least two search spaces to be switched to the one in the at least two control resource sets.
  • the terminal device may determine, according to the second indication information, at least two search spaces and multiple listening timings of the first control resource set corresponding to the first control information.
  • the second indication information is used to indicate that the second control resource set associated with at least two search spaces is switched to the first control resource set. It can also be understood that the second indication information is used to indicate that at least two search spaces are associated with the first control resource set.
  • the control resource set In this case, after the terminal device receives the second indication information, it can be considered that the access network device has reconfigured at least two search spaces associated with the first control resource set through the second indication information.
  • the at least two search spaces associated with the second control resource set are invalid.
  • the second indication information may include the identifier of the first control resource set.
  • the access network device may send the second indication information to the terminal device through MAC CE or DCI; for another example, the access network device may send the second indication information to the terminal device.
  • the second indication information may also be sent to multiple terminal devices interested in the first multicast service through a system message.
  • the access network device sends first indication information to the terminal device, where the first indication information is used to indicate the target monitoring timing of the first control information; correspondingly, the terminal device may receive the first indication information.
  • the terminal device monitors the first control information at the target monitoring timing.
  • the first indication information may include an identification of the first search space. Furthermore, after receiving the first indication information, the terminal device can determine that the listening timing corresponding to the first search space and the first control resource set associated therewith is the target listening timing of the first control information, and the other at least two search spaces The listening timings corresponding to the search space and its associated first control resource set are non-target listening timings.
  • the access network device may also send fourth indication information to the terminal device, where the fourth indication information may include at least one of the following: (1) the identifier of the first TCI state, (2) the first search space associated An identifier of the control resource set, (3) an identifier of a cell corresponding to the first search space, and (4) an identifier of a BWP corresponding to the first search space.
  • fourth indication information may include at least one of the following: (1) the identifier of the first TCI state, (2) the first search space associated An identifier of the control resource set, (3) an identifier of a cell corresponding to the first search space, and (4) an identifier of a BWP corresponding to the first search space.
  • the access network device can send the above-mentioned information (such as the identifier of the first search space and the identifier of the first control resource set) to the terminal device in various ways, for example, the above-mentioned information can be sent to the terminal device through the first MAC CE, see Fig. As shown in (a) of 11, it is an example of the format of the first MAC CE.
  • the first MAC CE may include an identifier of the first search space and an identifier of the first control resource set.
  • the first indication information may include an identification of the first TCI state.
  • the terminal device After receiving the first indication information, the terminal device determines that the first TCI state corresponds to the first search space according to the corresponding relationship between the TCI state and the search space, and then can determine the monitoring corresponding to the first search space and its associated first control resource set.
  • the timing is the target listening timing of the first control information, and the listening timings corresponding to other search spaces in the at least two search spaces and their associated first control resource sets are non-target listening timings.
  • the access network device may also send fourth indication information to the terminal device, where the fourth indication information may include at least one of the following: (1) an identifier of the first control resource set associated with the first search space, (2) The identifier of the cell corresponding to the first search space, and (3) the identifier of the BWP corresponding to the first search space.
  • fourth indication information may include at least one of the following: (1) an identifier of the first control resource set associated with the first search space, (2) The identifier of the cell corresponding to the first search space, and (3) the identifier of the BWP corresponding to the first search space.
  • the access network device can send the above-mentioned information (such as the identifier of the first TCI state, the identifier of the serving cell, and the identifier of the first control resource set) to the terminal device in a variety of ways, for example, the second MAC CE can be used to send the information to the terminal device. Send the above information.
  • the second MAC CE may include the identifier of the serving cell to which the second MAC CE is applicable, the identifier of the first control resource set, and the first TCI state 's identification.
  • the first indication information may include identifications of at least two TCI states.
  • the terminal device can select one of the TCI states from at least two TCI states (for example, the selected TCI state is the first TCI state); and, according to the correspondence between the TCI state and the search space, determine the first TCI state.
  • a TCI state corresponds to the first search space, and then it can be determined that the listening timing corresponding to the first search space and its associated first control resource set is the target listening timing of the first control information, and other search spaces in the at least two search spaces
  • the listening timing corresponding to the first control resource set associated therewith is a non-target listening timing.
  • the terminal device may select one of the TCI states from the at least two TCI states.
  • the terminal device may select the first TCI state from at least two TCI states according to the TCI state of monitoring the second control information, and the first TCI state is the same as the TCI state of monitoring the second control information.
  • the second control information is used for scheduling unicast service information.
  • the terminal device may determine beam qualities corresponding to at least two TCI states, and select a first TCI state from the at least two TCI states according to the beam qualities corresponding to the at least two TCI states, and the beam quality corresponding to the first TCI state Greater than or equal to the beam quality corresponding to other TCI states in at least two TCI states.
  • the terminal device may randomly select one TCI state from at least two TCI states.
  • the access network device may also send fourth indication information to the terminal device, where the fourth indication information may include at least one of the following: (1) an identifier of the first control resource set associated with the first search space, (2) The identifier of the cell corresponding to the first search space, and (3) the identifier of the BWP corresponding to the first search space.
  • fourth indication information may include at least one of the following: (1) an identifier of the first control resource set associated with the first search space, (2) The identifier of the cell corresponding to the first search space, and (3) the identifier of the BWP corresponding to the first search space.
  • the access network device can send the above-mentioned information (such as the identification of at least two TCI states, the identification of the serving cell, and the identification of the first control resource set) to the terminal device in a variety of ways, for example, the third MAC CE can be used to send the terminal device.
  • the third MAC CE may include the identity of the serving cell to which the third MAC CE is applicable, the identity of the first control resource set, and at least two TCIs Identification of states such as the first TCI state, the second TCI state, and the third TCI state.
  • the E field in the third MAC CE is an extension indication field, and this field may include 1 bit.
  • the third MAC CE may further include reserved bits, and the value of the reserved bits may be 0.
  • the corresponding relationship between the TCI state and the search space involved in the above example 2 or example 3 may be configured by the access network device for the terminal device, for example, the access network device sends the second configuration information to the terminal device, the second configuration The information is used to configure the correspondence between the TCI state and the search space, wherein the correspondence between the TCI state and the search space may include the correspondence between the first TCI state and the first search space.
  • the corresponding relationship between the TCI state and the search space may also be predefined by the protocol, which is not specifically limited.
  • the access network device may send the identifier of the first TCI state to the terminal device to implicitly indicate activation
  • the access network device may send the identifiers of at least two TCI states to the terminal device to implicitly indicate activation of the at least two TCI states.
  • the access network device may first activate one or more TCI states corresponding to the first control resource set for the terminal device through the MAC CE, and then send the The terminal device sends the identifier of the first TCI state, and the first TCI state belongs to one or more activated TCI states; for example, in the above example 3, the access network device can first activate the first control resource set corresponding to the terminal device through the MAC CE. multiple TCI states, and then send at least an identifier of the TCI state to the terminal device through the DCI, and at least two TCI states may belong to the multiple activated TCI states.
  • the access network device can activate the TCI state through a MAC CE in a variety of ways, for example, the access network device can activate one or more TCIs corresponding to a control resource set (such as control resource set 1) through a MAC CE.
  • the MAC CE may include the identity of the serving cell, the identity of the control resource set 1, the identity of the TCI state 1, and the identity of the TCI state 2, that is, the access network The device activates TCI state 1 and TCI state 2 corresponding to control resource set 1 through the MAC CE.
  • the access network device may also activate one or more TCI states corresponding to multiple control resource sets (such as control resource set 1, control resource set 2, and control resource set 3) through one MAC CE; for example, see As shown in (b) of FIG. 12 , the MAC CE may include the identity of the serving cell, the identity of control resource set 1, the identity of TCI state 1 corresponding to control resource set 1, the identity of control resource set 2, and the identity of control resource set 2 The identifier of the corresponding TCI state 2, the identifier of the control resource set 3, and the identifier of the TCI state 3 corresponding to the control resource set 3, that is, the access network device activates the TCI state 1 and the control resource set corresponding to the control resource set 1 through the MAC CE.
  • the MAC CE may include the identity of the serving cell, the identity of control resource set 1, the identity of TCI state 1 corresponding to control resource set 1, the identity of control resource set 2, and the identity of control resource set 2
  • the identifier of the corresponding TCI state 2 the identifier of the control
  • the MAC CE may include the identity of the serving cell, the identity of the control resource set 1, The identifier of TCI state 1 and the identifier of TCI state 2 corresponding to control resource set 1, the identifier of control resource set 2, the identifier of TCI state 3 and the identifier of TCI state 4 corresponding to control resource set 2, that is, the access network device passes the The MAC CE activates TCI state 1 and TCI state 2 corresponding to control resource set 1 and TCI state 3 and TCI state 4 corresponding to control resource set 2.
  • the access network device sends the serving cell configuration (Servingcell config) to the terminal device, and the serving cell
  • the BWP configuration includes the BWP configuration (BWP config)
  • the BWP configuration includes the control resource combination configuration (CORESET config)
  • the control resource set can be configured with one or more TCI state identifiers or one or more TCI state combinations.
  • each TCI state combination may include one or more TCI states. Therefore, when the access network device activates the TCI state for the terminal device, the MAC CE sent to the terminal device may also include the identifier of the BWP.
  • the MAC CE may include the identity of the serving cell, the identity of the BWP1, the identity of the control resource set 1, the identity of the TCI state 1, the identity of the control resource set 2, the identity of the TCI
  • the identifier of state 2 that is, the access network device activates the TCI state 1 corresponding to the control resource set 1 configured on the BWP1 and the TCI state 2 corresponding to the control resource set 2 configured on the BWP1 through the MAC CE.
  • the MAC CE may include the identity of the serving cell, the identity of the BWP1, the identity of the control resource set 1, the number of TCI states corresponding to the control resource set 1 (for example, the number is 3), The identifier of TCI state 1, the identifier of TCI state 2, and the identifier of TCI state 3, that is, the access network device activates the three TCI states corresponding to control resource set 1 configured on BWP1 through the MAC CE, which are respectively TCI state 1, TCI state state 2, TCI state 3;
  • the MAC CE may include the identity of the serving cell, the identity of the BWP1, the identity of the control resource set 1, and a bitmap, and each bit in the bitmap may correspond to a TCI state, For a certain bit, when the value of the bit is 1, it means that the TCI state corresponding to the bit is activated, and when the value of the bit is 0, it means that the TCI state corresponding to the bit is not activated.
  • the number of bits included in the bitmap and the specific correspondence between the bits in the bitmap and the TCI state are not limited.
  • the identifier of the TCI state may also be replaced with an identifier of a combination of TCI states.
  • each bit in the bitmap may also correspond to one TCI state combination.
  • the terminal device may determine the start-up time for monitoring at the target monitoring opportunity
  • the access network device may indicate the start-up time to the terminal device.
  • the access network device may send third indication information to the terminal device, and correspondingly, the terminal device may receive the third indication information, the third indication information is used to indicate the start time, and then the terminal device may according to the third indication information Determine the start time.
  • the access network device may implicitly indicate the startup time by sending the first indication information to the terminal device.
  • the terminal device may receive the first indication information, and determine the end time of receiving the first indication information as the start time.
  • the access network device may indicate to the terminal device that the start time is the same as the start time of the first search space.
  • the startup time may also be predefined by the protocol.
  • the access network device may also indicate to the terminal device the start monitoring timing (the monitoring timing is the monitoring timing corresponding to the first search space and the first control resource set), for example, the access network The device sends the identifier of the start monitoring timing to the terminal device, and then the terminal device can determine the start monitoring timing.
  • the start time can be the start boundary of the initial monitoring timing.
  • the manner in which the terminal device determines the end time of monitoring at the target monitoring timing may refer to Embodiment 1, and details are not repeated here.
  • the access network device can configure at least two search spaces and at least one control resource set for the terminal device, and the at least two search spaces and their associated control resource sets correspond to multiple listening opportunities of the first control information; and
  • the access network device can instruct the terminal device to monitor at the listening timing (that is, the target listening timing) corresponding to one of the search spaces and its associated control resource set, thereby effectively reducing unnecessary monitoring by the terminal device and reducing the functionality of the terminal device. consumption.
  • Embodiment 1 and Embodiment 2 can be implemented separately.
  • the first indication information is used to indicate the target monitoring timing of the first control information, but in Embodiment 1
  • the content included in the first indication information may be different from the content included in the first indication information in the second embodiment.
  • step numbers of the flowcharts described in the above-mentioned embodiments are only an example of the execution process, and do not constitute a restriction on the sequence of execution of the steps. There are no steps in the embodiments of the present application that have time-series dependencies. There is no strict order of execution between. In addition, not all the steps shown in each flowchart are steps that must be executed, and some steps may be added or deleted on the basis of each flowchart according to actual needs.
  • the access network device or the terminal device may include corresponding hardware structures and/or software modules for performing each function.
  • the embodiments of the present application can be implemented in hardware or a combination of hardware and computer software. 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 or 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 unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the apparatus 1400 may include: a processing unit 1402 and a communication unit 1403 .
  • the processing unit 1402 is used to control and manage the actions of the device 1400 .
  • the communication unit 1403 is used to support the communication between the apparatus 1400 and other devices.
  • the communication unit 1403 is also referred to as a transceiving unit, and may include a receiving unit and/or a sending unit, which are respectively configured to perform receiving and sending operations.
  • the apparatus 1400 may further include a storage unit 1401 for storing program codes and/or data of the apparatus 1400 .
  • the apparatus 1400 may be the terminal device in the foregoing embodiment, or may also be a chip provided in the terminal device.
  • the processing unit 1402 can support the apparatus 1400 to perform the actions of the terminal device in the above method examples.
  • the processing unit 1402 mainly performs the internal actions of the terminal device in the method example, and the communication unit 1403 may support the communication between the apparatus 1400 and other devices.
  • the communication unit 1403 is configured to: receive the first indication information, where the first indication information is used to indicate the target monitoring timing of the first control information; monitor the first control information on the target monitoring timing, the first The control information is used to schedule information of the multicast service; wherein, the target listening opportunity includes at least one listening opportunity among multiple listening opportunities of the first control information.
  • the communication unit 1403 is further configured to: receive configuration information, where the configuration information is used to configure the first search space of the multicast service and at least one control resource set of the multicast service, where The at least one control resource set includes a first control resource set; wherein, the first search space is associated with the first control resource set, and the first search space and the first control resource set correspond to the multiple listening occasions.
  • the at least one control resource set further includes a second control resource set; the communication unit 1403 is further configured to: receive second indication information, where the second indication information is used to indicate the first search space associated with the first search space.
  • the second control resource set is switched to the first control resource set.
  • the first indication information includes at least one of the following items: (1) monitoring period information, where the monitoring period information is used to indicate a period for monitoring the first control information; (2) offset information, where the The offset information is used to indicate the offset of the target listening timing in the cycle; (3) the monitoring duration information, the monitoring duration information is used to indicate the duration of monitoring the first control information in the cycle.
  • the monitoring period information includes at least one of the following items: the number of radio frames included in the period, the number of radio subframes included in the period, and the number of time slots included in the period.
  • the offset information includes at least one of the following: the number of radio frames included in the offset, the number of radio frames included in the offset The number of radio subframes included in the offset, the number of time slots included in the offset, the number of symbols included in the offset, and the number of listening opportunities included in the offset ;
  • the monitoring duration information includes at least one of the following: the number of radio frames included in the duration, the number of radio subframes included in the duration, the number of time slots included in the duration, and the duration including The number of symbols, and the number of listening opportunities included in the duration; wherein, the listening opportunity included in the duration is the target listening opportunity.
  • the start time of the cycle is determined according to the received third indication information; or, the start time of the cycle is the end time of receiving the first indication information.
  • the third indication information includes at least one of the following items: an identifier of a radio frame, an identifier of a radio subframe, an identifier of a time slot, and an identifier of a symbol.
  • the start listening opportunity included in the period is the first listening opportunity after the starting time among the multiple listening opportunities; or, the starting listening opportunity is the The listening opportunity closest to the start time among the multiple listening opportunities.
  • the communication unit 1403 is further configured to: receive fourth indication information, where the fourth indication information includes at least one of the following: an identifier of the first TCI state, an identifier of a cell corresponding to the first search space, a first The identifier of the BWP corresponding to the search space; the identifier of the first TCI state is used to determine the beam that monitors the first control information.
  • the communication unit 1403 is further configured to: receive first configuration information, where the first configuration information is used to configure at least two search spaces of the multicast service and at least one control resource of the multicast service
  • the at least one control resource set includes a first control resource set; the at least two search spaces are associated with the first control resource set, and the at least two search spaces and the first control resource set correspond to the multiple listening occasions .
  • the first indication information includes an identifier of the first search space in the at least two search spaces; the first search space and the first control resource set correspond to target listening timings.
  • the first indication information includes an identifier of at least one TCI state; the processing unit 1402 is configured to: select a first TCI state from the at least one TCI state; according to the correspondence between the TCI state and the search space, determining that the first TCI state corresponds to the first search space; and determining that the listening timing corresponding to the first search space and the first control resource set is the target listening timing.
  • the processing unit 1402 is specifically configured to: determine the TCI state used for monitoring the second control information, and the second control information is used to schedule the information of the unicast service; according to the TCI used for monitoring the second control information state, select a first TCI state from the at least one TCI state, and the first TCI state is the same as the TCI state used to monitor the second control information; or, determine the beam quality corresponding to the at least one TCI state; according to the For the beam quality corresponding to at least one TCI state, a first TCI state is selected from the at least one TCI state, and the beam quality corresponding to the first TCI state is greater than or equal to the beam quality corresponding to other TCI states in the at least one TCI state.
  • the apparatus 1400 may be the access network device in the foregoing embodiment, or may also be a chip provided in the access network device.
  • the processing unit 1402 may support the apparatus 1400 to perform the actions of the access network device in each method example above.
  • the processing unit 1402 mainly performs the internal actions of the access network device in the method example, and the communication unit 1403 may support the communication between the apparatus 1400 and other devices.
  • the processing unit 1402 is configured to: determine first indication information, where the first indication information is used to indicate a target listening timing of the first control information, and the first control information is used to schedule information about the multicast service;
  • the communication unit 1403 is configured to: send the first indication information to the terminal device; wherein, the target monitoring timing includes at least one monitoring timing among multiple monitoring timings of the first control information.
  • the communication unit 1403 is further configured to: send configuration information to the terminal device, where the configuration information is used to configure the first search space of the multicast service and at least one of the multicast service A control resource set, the at least one control resource set includes a first control resource set; wherein, the first search space is associated with the first control resource set, and the first search space and the first control resource set correspond to the multiple listening occasions.
  • the at least one control resource set further includes a second control resource set; the communication unit 1403 is further configured to: send second indication information to the terminal device, where the second indication information is used to indicate the first The second control resource set associated with the search space is switched to the first control resource set.
  • the first indication information includes at least one of the following items: (1) monitoring period information, where the monitoring period information is used to indicate a period for monitoring the first control information; (2) offset information, where the The offset information is used to indicate the offset of the target listening timing in the cycle; (3) the monitoring duration information, the monitoring duration information is used to indicate the duration of monitoring the first control information in the cycle.
  • the monitoring period information includes at least one of the following items: the number of radio frames included in the period, the number of radio subframes included in the period, and the number of time slots included in the period.
  • the offset information includes at least one of the following: the number of radio frames included in the offset, the number of radio frames included in the offset The number of radio subframes included in the offset, the number of time slots included in the offset, the number of symbols included in the offset, and the number of listening opportunities included in the offset ;
  • the monitoring duration information includes at least one of the following: the number of radio frames included in the duration, the number of radio subframes included in the duration, the number of time slots included in the duration, and the duration including The number of symbols, and the number of listening opportunities included in the duration; wherein, the listening opportunity included in the duration is the target listening opportunity.
  • the communication unit 1403 is further configured to: send third indication information to the terminal device, where the third indication information is used to indicate the start moment of the cycle.
  • the third indication information includes at least one of the following items: an identifier of a radio frame, an identifier of a radio subframe, an identifier of a time slot, and an identifier of a symbol.
  • the start listening opportunity included in the period is the first listening opportunity after the starting time among the multiple listening opportunities; or, the starting listening opportunity is the The listening opportunity closest to the start time among the multiple listening opportunities.
  • the communication unit 1403 is further configured to: send fourth indication information to the terminal device, where the fourth indication information includes at least one of the following: an identifier indicating the TCI state by the first transmission configuration, a first search space The identifier of the corresponding cell and the identifier of the BWP corresponding to the first search space; the identifier of the first TCI state is used by the terminal device to determine the beam for monitoring the first control information.
  • the communication unit 1403 is further configured to: send first configuration information to the terminal device, where the first configuration information is used to configure at least two search spaces of the multicast service and the multicast service
  • the at least one control resource set includes the first control resource set; the at least two search spaces are associated with the first control resource set, and the at least two search spaces and the first control resource set correspond to the Describe multiple monitoring times.
  • the first indication information includes an identifier of the first search space in the at least two search spaces; the first search space and the first control resource set correspond to target listening timings.
  • the first indication information includes an identifier of at least one TCI state; the at least one TCI state includes a first TCI state, the first TCI state corresponds to the first search space, the first search space and the first TCI state
  • the control resource set corresponds to the target listening timing.
  • each unit in the above apparatus can be realized in the form of software calling through the processing element; also can all be realized in the form of hardware; some units can also be realized in the form of software calling through the processing element, and some units can be realized in the form of hardware.
  • each unit can be a separately established processing element, or can be integrated in a certain chip of the device to be implemented, and can also be stored in the memory in the form of a program, which can be called by a certain processing element of the device and execute the unit's processing.
  • each operation of the above method or each of the above units may be implemented by an integrated logic circuit of hardware in the processor element or implemented in the form of software being invoked by the processing element.
  • a unit in any of the above apparatuses may be one or more integrated circuits configured to implement the above methods, eg, one or more application specific integrated circuits (ASICs), or, one or more Multiple microprocessors (digital singnal processors, DSPs), or, one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms.
  • ASICs application specific integrated circuits
  • DSPs digital singnal processors
  • FPGAs field programmable gate arrays
  • a unit in the apparatus can be implemented in the form of a processing element scheduler
  • the processing element can be a processor, such as a general-purpose central processing unit (CPU), or other processors that can invoke programs.
  • these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • the above unit for receiving is an interface circuit of the device for receiving signals from other devices.
  • the receiving unit is an interface circuit used by the chip to receive signals from other chips or devices.
  • the above unit for sending is an interface circuit of the device for sending signals to other devices.
  • the sending unit is an interface circuit used by the chip to send signals to other chips or devices.
  • FIG. 15 is a schematic structural diagram of a terminal device provided by an embodiment of the present application, which may be the terminal device in the above embodiment, and is used to implement operations of the terminal device in the above embodiment.
  • the terminal device includes: an antenna 1510 , a radio frequency part 1520 , and a signal processing part 1530 .
  • the antenna 1510 is connected to the radio frequency part 1520 .
  • the radio frequency part 1520 receives the information sent by the network device through the antenna 1510, and sends the information sent by the network device to the signal processing part 1530 for processing.
  • the signal processing part 1530 processes the information of the terminal equipment and sends it to the radio frequency part 1520
  • the radio frequency part 1520 processes the information of the terminal equipment and sends it to the network equipment through the antenna 1510.
  • the signal processing part 1530 can include a modulation and demodulation subsystem, which is used to implement the processing of each communication protocol layer of the data; it can also include a central processing subsystem, which is used to implement the processing of the terminal device operating system and the application layer; in addition, it can also Including other subsystems, such as multimedia subsystem, peripheral subsystem, etc., wherein the multimedia subsystem is used to realize the control of the terminal equipment camera, screen display, etc., and the peripheral subsystem is used to realize the connection with other devices.
  • the modem subsystem can be a separate chip.
  • the modem subsystem may include one or more processing elements 1531, including, for example, a host CPU and other integrated circuits.
  • the modulation and demodulation subsystem may also include a storage element 1532 and an interface circuit 1533 .
  • the storage element 1532 is used for storing data and programs, but the program for executing the method performed by the terminal device in the above method may not be stored in the storage element 1532, but in a memory outside the modulation and demodulation subsystem, When used, the modem subsystem is loaded for use.
  • Interface circuit 1533 is used to communicate with other subsystems.
  • the modulation and demodulation subsystem can be implemented by a chip, the chip includes at least one processing element and an interface circuit, wherein the processing element is used to execute each step of any one of the methods performed by the above terminal equipment, and the interface circuit is used to communicate with other devices.
  • the unit for the terminal device to implement each step in the above method may be implemented in the form of a processing element scheduler.
  • an apparatus for a terminal device includes a processing element and a storage element, and the processing element calls the program stored in the storage element to Execute the method executed by the terminal device in the above method embodiments.
  • the storage element may be a storage element on the same chip as the processing element, ie, an on-chip storage element.
  • the program for executing the method performed by the terminal device in the above method may be in a storage element on a different chip from the processing element, that is, an off-chip storage element.
  • the processing element calls or loads the program from the off-chip storage element to the on-chip storage element, so as to call and execute the method performed by the terminal device in the above method embodiments.
  • the unit for the terminal device to implement each step in the above method may be configured as one or more processing elements, and these processing elements are provided on the modulation and demodulation subsystem, and the processing element here may be an integrated circuit, For example: one or more ASICs, or, one or more DSPs, or, one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits can be integrated together to form chips.
  • the units of the terminal device implementing each step in the above method may be integrated together and implemented in the form of an SOC, and the SOC chip is used to implement the above method.
  • At least one processing element and a storage element may be integrated in the chip, and the method executed by the above terminal device may be implemented in the form of a program stored in the storage element being invoked by the processing element; or, at least one integrated circuit may be integrated in the chip to implement the above terminal.
  • the above apparatus for a terminal device may include at least one processing element and an interface circuit, where the at least one processing element is configured to execute any method performed by the terminal device provided in the above method embodiments.
  • the processing element can execute part or all of the steps performed by the terminal device in the first way: by calling the program stored in the storage element; or in the second way: by combining the instructions with the integrated logic circuit of the hardware in the processor element Part or all of the steps performed by the terminal device may be performed in the manner of the first method; of course, some or all of the steps performed by the terminal device may also be performed in combination with the first manner and the second manner.
  • the processing elements here are the same as those described above, which can be implemented by a processor, and the functions of the processing elements can be the same as those of the processing unit described in FIG. 14 .
  • the processing element may be a general-purpose processor, such as a CPU, or may be one or more integrated circuits configured to implement the above methods, such as: one or more ASICs, or, one or more microprocessors, DSPs , or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.
  • the storage element may be implemented by a memory, and the function of the storage element may be the same as that of the storage unit described in FIG. 14 .
  • the storage element may be implemented by a memory, and the function of the storage element may be the same as that of the storage unit described in FIG. 14 .
  • the storage element can be one memory or a collective term for multiple memories.
  • the terminal device shown in FIG. 15 can implement each process involving the terminal device in the foregoing method embodiments.
  • the operations and/or functions of each module in the terminal device shown in FIG. 15 are respectively to implement the corresponding processes in the foregoing method embodiments.
  • Access network equipment 160 may include one or more DUs 1601 and one or more CUs 1602.
  • the DU 1601 may include at least one antenna 16011, at least one radio frequency unit 16012, at least one processor 16013 and at least one memory 16014.
  • the DU 1601 part is mainly used for the transmission and reception of radio frequency signals, the conversion of radio frequency signals and baseband signals, and part of baseband processing.
  • the CU 1602 may include at least one processor 16022 and at least one memory 16021 .
  • the CU 1602 part is mainly used to perform baseband processing, control access network equipment, and the like.
  • the DU 1601 and the CU 1602 may be physically set together, or may be physically separated, that is, a distributed base station.
  • the CU 1602 is the control center of the access network equipment, which can also be called a processing unit, and is mainly used to complete the baseband processing function.
  • the CU 1602 may be used to control the access network device to perform the operation process of the access network device in the foregoing method embodiments.
  • the access network device 160 may include one or more radio frequency units, one or more DUs, and one or more CUs.
  • the DU may include at least one processor 16013 and at least one memory 16014
  • the radio unit may include at least one antenna 16011 and at least one radio frequency unit 16012
  • the CU may include at least one processor 16022 and at least one memory 16021.
  • the CU1602 may be composed of one or more single boards, and multiple single boards may jointly support a wireless access network (such as a 5G network) with a single access indication, or support wireless access systems of different access standards respectively.
  • Access network such as LTE network, 5G network or other network.
  • the memory 16021 and the processor 16022 can serve one or more single boards. That is to say, the memory and processor can be provided separately on each single board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits may also be provided on each single board.
  • the DU1601 can be composed of one or more boards, and multiple boards can jointly support a wireless access network (such as a 5G network) with a single access indication, or can support a wireless access network with different access standards (such as a 5G network). LTE network, 5G network or other network).
  • the memory 16014 and processor 16013 may serve one or more single boards. That is to say, the memory and processor can be provided separately on each single board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits may also be provided on each single board.
  • the access network device shown in FIG. 16 can implement each process involving the access network device in the foregoing method embodiments.
  • the operations and/or functions of each module in the access network device shown in FIG. 16 are respectively to implement the corresponding processes in the foregoing method embodiments.
  • system and “network” in the embodiments of the present application may be used interchangeably.
  • At least one means one or more, and “plurality” means two or more.
  • And/or which describes the association relationship of the associated objects, means that there can be three kinds of relationships, for example, A and/or B, which can mean: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects are an “or” relationship.
  • At least one item(s) below” or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s).
  • At least one of A, B and C includes A, B, C, AB, AC, BC or ABC.
  • ordinal numbers such as “first” and “second” mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, sequence, priority or importance of multiple objects degree.
  • the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
  • computer-usable storage media including, but not limited to, disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

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Abstract

本申请涉及通信技术领域，公开了一种通信方法及装置。其中方法包括：终端设备接收第一指示信息，第一指示信息用于指示第一控制信息的目标监听时机，进而终端设备可以在目标监听时机上监听第一控制信息，第一控制信息用于调度多播业务的信息。其中，目标监听时机包括第一控制信息的多个监听时机中的至少一个监听时机。采用该种方式，由于接入网设备向终端设备发送第一指示信息来指示目标监听时机，从而使得终端设备可以在目标监听时机上进行监听，相比于终端设备在第一控制信息的多个监听时机上均进行监听的方式来说，能够有效减少终端设备不必要的监听，降低终端设备的功耗。

Description

一种通信方法及装置
相关申请的交叉引用
本申请要求在2020年07月28日提交中国专利局、申请号为202010737372.8、申请名称为“一种通信方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及无线通信技术领域，特别涉及一种通信方法及装置。
背景技术
无线通信系统中，接入网设备可以向终端设备发送配置信息，配置信息用于配置控制资源集合(control-resource set，CORESET)和该控制资源集合关联的搜索空间(search space)，搜索空间也可以称为搜索空间集合(search space set)；进而在控制资源集合和该控制资源集合关联的搜索空间对应的监听时机上向终端设备发送控制信息。相应地，终端设备接收到配置信息后，可以在控制资源集合和该控制资源集合关联的搜索空间对应的监听时机上监听控制信息，控制信息可以用于调度业务数据，该业务数据可以承载于物理下行共享信道(physical downlink sharing channel，PDSCH)。当终端设备监听到控制信息后，可以根据控制信息包括的调度信息来接收业务数据。
然而，在引入多播传输技术后，接入网设备可以通过多播方式向多个终端设备发送多播业务的信息。此种情形下，终端设备如何进行监听控制信息以接收多播业务的信息，仍需进一步的研究。
发明内容
本申请提供了一种通信方法及装置，用以减少终端设备不必要的监听，降低终端设备的功耗。
第一方面，本申请实施例提供一种通信方法，该方法可以适用于终端设备或者终端设备中的芯片，以该方法适用于终端设备为例，在该方法中，终端设备接收第一指示信息，第一指示信息用于指示第一控制信息的目标监听时机；在目标监听时机上监听第一控制信息，第一控制信息用于调度多播业务的信息；其中，目标监听时机包括第一控制信息的多个监听时机中的至少一个监听时机。
采用该种方式，由于接入网设备向终端设备发送第一指示信息来指示目标监听时机，从而使得终端设备可以在目标监听时机上进行监听，相比于终端设备在第一控制信息的多个监听时机上均进行监听的方式来说，能够有效减少终端设备不必要的监听，降低终端设备的功耗。
在一种可能的设计中，该方法还包括：接收配置信息，所述配置信息用于配置所述多播业务的第一搜索空间和所述多播业务的至少一个控制资源集合，所述至少一个控制资源集合包括第一控制资源集合；其中，第一搜索空间关联第一控制资源集合，第一搜索空间 和第一控制资源集合对应所述多个监听时机。
采用该种方式，接入网设备可以通过配置一个搜索空间，来配置第一控制信息的多个监听时机，从而能够有效节省资源开销。
在一种可能的设计中，所述至少一个控制资源集合还包括第二控制资源集合；该方法还包括：接收第二指示信息，第二指示信息用于指示第一搜索空间关联的第二控制资源集合切换为第一控制资源集合。
采用该种方式，接入网设备可以灵活控制第一搜索空间关联的控制资源集合，从而增加了接入网设备调控的灵活性。
在一种可能的设计中，第一指示信息包括以下至少一项：(1)监听周期信息，所述监听周期信息用于指示监听第一控制信息的周期；(2)偏移量信息，所述偏移量信息用于指示目标监听时机在所述周期中的偏移量；(3)监听时长信息，所述监听时长信息用于指示在所述周期内监听第一控制信息的时长。
在一种可能的设计中，所述监听周期信息包括以下至少一项：所述周期包括的无线帧的个数、所述周期包括的无线子帧的个数、所述周期包括的时隙的个数、所述周期包括的符号的个数、所述周期包括的监听时机的个数；所述偏移量信息包括以下至少一项：所述偏移量包括的无线帧的个数、所述偏移量包括的无线子帧的个数、所述偏移量包括的时隙的个数、所述偏移量包括的符号的个数、所述偏移量包括的监听时机的个数；所述监听时长信息包括以下至少一项：所述时长包括的无线帧的个数、所述时长包括的无线子帧的个数、所述时长包括的时隙的个数、所述时长包括的符号的个数、所述时长包括的监听时机的个数；其中，所述时长包括的监听时机为目标监听时机。
在一种可能的设计中，所述周期的起始时刻是根据接收到的第三指示信息确定的；或者，所述周期的起始时刻为接收第一指示信息的结束时刻。
在一种可能的设计中，第三指示信息包括以下至少一项：无线帧的标识、无线子帧的标识、时隙的标识、符号的标识。
在一种可能的设计中，所述周期包括的起始监听时机为所述多个监听时机中位于所述起始时刻之后的第一个监听时机；或者，所述起始监听时机为所述多个监听时机中距离所述起始时刻最近的监听时机。
在一种可能的设计中，该方法还包括：接收第四指示信息，第四指示信息包括以下至少一项：第一TCI状态的标识、第一搜索空间对应的小区的标识、第一搜索空间对应的BWP的标识；第一TCI状态的标识用于确定监听第一控制信息的波束。
在一种可能的设计中，该方法还包括：接收第一配置信息，第一配置信息用于配置所述多播业务的至少两个搜索空间和所述多播业务的至少一个控制资源集合，所述至少一个控制资源集合包括第一控制资源集合；所述至少两个搜索空间关联第一控制资源集合，所述至少两个搜索空间和第一控制资源集合对应所述多个监听时机。
采用该种方式，接入网设备可以通过配置至少两个搜索空间，来配置第一控制信息的多个监听时机，从而便于向终端设备指示第一控制信息的目标监听时机。
在一种可能的设计中，第一指示信息包括所述至少两个搜索空间中第一搜索空间的标识；第一搜索空间和第一控制资源集合对应目标监听时机。
在一种可能的设计中，第一指示信息包括至少一个TCI状态的标识；该方法还包括：从所述至少一个TCI状态中选择第一TCI状态；根据TCI状态与搜索空间的对应关系，确 定第一TCI状态对应第一搜索空间；确定第一搜索空间和第一控制资源集合对应的监听时机为目标监听时机。
在一种可能的设计中，从所述至少一个TCI状态中选择第一TCI状态，包括：确定用于监听第二控制信息的TCI状态，第二控制信息用于调度单播业务的信息；根据用于监听第二控制信息的TCI状态，从所述至少一个TCI状态中选择第一TCI状态，第一TCI状态与用于监听第二控制信息的TCI状态相同；或者，确定所述至少一个TCI状态对应的波束质量；根据所述至少一个TCI状态对应的波束质量，从所述至少一个TCI状态中选择第一TCI状态，第一TCI状态对应的波束质量大于或等于所述至少一个TCI状态中其它TCI状态对应的波束质量。
在一种可能的设计中，该方法还包括：接收第二配置信息，第二配置信息用于配置所述TCI状态与搜索空间的对应关系。
在一种可能的设计中，所述至少一个控制资源集合还包括第二控制资源集合；该方法还包括：接收第二指示信息，第二指示信息用于指示第一搜索空间关联的第二控制资源集合切换为第一控制资源集合。
在一种可能的设计中，该方法还包括：接收第四指示信息，第四指示信息包括以下至少一项：第一TCI状态的标识、第一搜索空间对应的小区的标识、第一搜索空间对应的BWP的标识；第一TCI状态的标识用于确定监听第一控制信息的波束。
第二方面，本申请实施例提供一种通信方法，该方法可以适用于接入网设备或者接入网设备中的芯片，以该方法适用于接入网设备为例，在该方法中，接入网设备确定第一指示信息，第一指示信息用于指示第一控制信息的目标监听时机，第一控制信息用于调度多播业务的信息；向终端设备发送第一指示信息；其中，目标监听时机包括第一控制信息的多个监听时机中的至少一个监听时机。
在一种可能的设计中，该方法还包括：向所述终端设备发送配置信息，所述配置信息用于配置所述多播业务的第一搜索空间和所述多播业务的至少一个控制资源集合，所述至少一个控制资源集合包括第一控制资源集合；其中，第一搜索空间关联第一控制资源集合，第一搜索空间和第一控制资源集合对应所述多个监听时机。
在一种可能的设计中，所述至少一个控制资源集合还包括第二控制资源集合；该方法还包括：向所述终端设备发送第二指示信息，第二指示信息用于指示第一搜索空间关联的第二控制资源集合切换为第一控制资源集合。
在一种可能的设计中，第一指示信息包括以下至少一项：(1)监听周期信息，所述监听周期信息用于指示监听第一控制信息的周期；(2)偏移量信息，所述偏移量信息用于指示目标监听时机在所述周期中的偏移量；(3)监听时长信息，所述监听时长信息用于指示在所述周期内监听第一控制信息的时长。
在一种可能的设计中，所述监听周期信息包括以下至少一项：所述周期包括的无线帧的个数、所述周期包括的无线子帧的个数、所述周期包括的时隙的个数、所述周期包括的符号的个数、所述周期包括的监听时机的个数；所述偏移量信息包括以下至少一项：所述偏移量包括的无线帧的个数、所述偏移量包括的无线子帧的个数、所述偏移量包括的时隙的个数、所述偏移量包括的符号的个数、所述偏移量包括的监听时机的个数；所述监听时长信息包括以下至少一项：所述时长包括的无线帧的个数、所述时长包括的无线子帧的个数、所述时长包括的时隙的个数、所述时长包括的符号的个数、所述时长包括的监听时机 的个数；其中，所述时长包括的监听时机为目标监听时机。
在一种可能的设计中，该方法还包括：向所述终端设备发送第三指示信息，第三指示信息用于指示所述周期的起始时刻。
在一种可能的设计中，第三指示信息包括以下至少一项：无线帧的标识、无线子帧的标识、时隙的标识、符号的标识。
在一种可能的设计中，所述周期包括的起始监听时机为所述多个监听时机中位于所述起始时刻之后的第一个监听时机；或者，所述起始监听时机为所述多个监听时机中距离所述起始时刻最近的监听时机。
在一种可能的设计中，该方法还包括：向所述终端设备发送第四指示信息，第四指示信息包括以下至少一项：第一传输配置指示TCI状态的标识、第一搜索空间对应的小区的标识、第一搜索空间对应的BWP的标识；第一TCI状态的标识用于所述终端设备确定监听第一控制信息的波束。
在一种可能的设计中，该方法还包括：向所述终端设备发送第一配置信息，第一配置信息用于配置所述多播业务的至少两个搜索空间和所述多播业务的至少一个控制资源集合，所述至少一个控制资源集合包括第一控制资源集合；所述至少两个搜索空间关联第一控制资源集合，所述至少两个搜索空间和第一控制资源集合对应所述多个监听时机。
在一种可能的设计中，第一指示信息包括所述至少两个搜索空间中第一搜索空间的标识；第一搜索空间和第一控制资源集合对应目标监听时机。
在一种可能的设计中，第一指示信息包括至少一个TCI状态的标识；所述至少一个TCI状态中包括第一TCI状态，第一TCI状态对应第一搜索空间，第一搜索空间和第一控制资源集合对应目标监听时机。
在一种可能的设计中，该方法还包括：向所述终端设备发送第二配置信息，第二配置信息用于配置第一TCI状态对应第一搜索空间。
在一种可能的设计中，所述至少一个控制资源集合还包括第二控制资源集合；该方法还包括：向所述终端设备发送第二指示信息，第二指示信息用于指示第一搜索空间关联的第二控制资源集合切换为第一控制资源集合。
在一种可能的设计中，该方法还包括：向所述终端设备发送第四指示信息，第四指示信息包括以下至少一项：第一TCI状态的标识、第一搜索空间对应的小区的标识、第一搜索空间对应的BWP的标识；第一TCI状态的标识用于确定监听第一控制信息的波束。
需要说明的是，上述第二方面所描述的方法与第一方面所描述的方法相对应，第二方面所描述的方法中相关技术特征的有益效果可以参见第一方面的描述，具体不再赘述。
第三方面，本申请实施例提供一种通信装置，所述通信装置可以为终端设备或者设置在终端设备内部的芯片。所述通信装置具备实现上述第一方面的功能，比如，所述通信装置包括执行上述第一方面涉及步骤所对应的模块或单元或手段(means)，所述功能或单元或手段可以通过软件实现，或者通过硬件实现，也可以通过硬件执行相应的软件实现。
在一种可能的设计中，所述通信装置包括处理单元、通信单元，其中，通信单元又可称为是收发单元，通信单元可以用于收发信号，以实现该通信装置和其它装置之间的通信，比如，通信单元用于接收来自终端设备的配置信息；处理单元可以用于执行该通信装置的一些内部操作。
基于该种设计，在一个实施例中，通信单元用于：接收第一指示信息，第一指示信息 用于指示第一控制信息的目标监听时机；处理单元，用于在目标监听时机上监听第一控制信息，第一控制信息用于调度多播业务的信息；其中，目标监听时机包括第一控制信息的多个监听时机中的至少一个监听时机。
在该实施例的一种可能的实现方式中，通信单元还用于：接收配置信息，所述配置信息用于配置所述多播业务的第一搜索空间和所述多播业务的至少一个控制资源集合，所述至少一个控制资源集合包括第一控制资源集合；其中，第一搜索空间关联第一控制资源集合，第一搜索空间和第一控制资源集合对应所述多个监听时机。
在该实施例的一种可能的实现方式中，所述至少一个控制资源集合还包括第二控制资源集合；通信单元还用于：接收第二指示信息，第二指示信息用于指示第一搜索空间关联的第二控制资源集合切换为第一控制资源集合。
在该实施例的一种可能的实现方式中，第一指示信息包括以下至少一项：(1)监听周期信息，所述监听周期信息用于指示监听第一控制信息的周期；(2)偏移量信息，所述偏移量信息用于指示目标监听时机在所述周期中的偏移量；(3)监听时长信息，所述监听时长信息用于指示在所述周期内监听第一控制信息的时长。
在该实施例的一种可能的实现方式中，所述监听周期信息包括以下至少一项：所述周期包括的无线帧的个数、所述周期包括的无线子帧的个数、所述周期包括的时隙的个数、所述周期包括的符号的个数、所述周期包括的监听时机的个数；所述偏移量信息包括以下至少一项：所述偏移量包括的无线帧的个数、所述偏移量包括的无线子帧的个数、所述偏移量包括的时隙的个数、所述偏移量包括的符号的个数、所述偏移量包括的监听时机的个数；所述监听时长信息包括以下至少一项：所述时长包括的无线帧的个数、所述时长包括的无线子帧的个数、所述时长包括的时隙的个数、所述时长包括的符号的个数、所述时长包括的监听时机的个数；其中，所述时长包括的监听时机为目标监听时机。
在该实施例的一种可能的实现方式中，所述周期的起始时刻是根据接收到的第三指示信息确定的；或者，所述周期的起始时刻为接收第一指示信息的结束时刻。
在该实施例的一种可能的实现方式中，第三指示信息包括以下至少一项：无线帧的标识、无线子帧的标识、时隙的标识、符号的标识。
在该实施例的一种可能的实现方式中，所述周期包括的起始监听时机为所述多个监听时机中位于所述起始时刻之后的第一个监听时机；或者，所述起始监听时机为所述多个监听时机中距离所述起始时刻最近的监听时机。
在该实施例的一种可能的实现方式中，通信单元还用于：接收第四指示信息，第四指示信息包括以下至少一项：第一TCI状态的标识、第一搜索空间对应的小区的标识、第一搜索空间对应的BWP的标识；第一TCI状态的标识用于确定监听第一控制信息的波束。
在该实施例的一种可能的实现方式中，通信单元还用于：接收第一配置信息，第一配置信息用于配置所述多播业务的至少两个搜索空间和所述多播业务的至少一个控制资源集合，所述至少一个控制资源集合包括第一控制资源集合；所述至少两个搜索空间关联第一控制资源集合，所述至少两个搜索空间和第一控制资源集合对应所述多个监听时机。
在该实施例的一种可能的实现方式中，第一指示信息包括所述至少两个搜索空间中第一搜索空间的标识；第一搜索空间和第一控制资源集合对应目标监听时机。
在一种可能的设计中，第一指示信息包括至少一个TCI状态的标识；处理单元还用于：从所述至少一个TCI状态中选择第一TCI状态；根据TCI状态与搜索空间的对应关系，确 定第一TCI状态对应第一搜索空间；以及，确定第一搜索空间和第一控制资源集合对应的监听时机为目标监听时机。
在一种可能的设计中，处理单元具体用于：确定用于监听第二控制信息的TCI状态，第二控制信息用于调度单播业务的信息；根据用于监听第二控制信息的TCI状态，从所述至少一个TCI状态中选择第一TCI状态，第一TCI状态与用于监听第二控制信息的TCI状态相同；或者，确定所述至少一个TCI状态对应的波束质量；根据所述至少一个TCI状态对应的波束质量，从所述至少一个TCI状态中选择第一TCI状态，第一TCI状态对应的波束质量大于或等于所述至少一个TCI状态中其它TCI状态对应的波束质量。
在又一种可能的设计中，所述通信装置包括处理器，还可以包括收发器，所述收发器用于收发信号，所述处理器执行程序指令，以完成上述第一方面中任意可能的设计或实现方式中的方法。其中，所述通信装置还可以包括一个或多个存储器，所述存储器用于与处理器耦合，所述存储器可以保存实现上述第一方面涉及的功能的必要计算机程序或指令。所述处理器可执行所述存储器存储的计算机程序或指令，当所述计算机程序或指令被执行时，使得所述通信装置实现上述第一方面任意可能的设计或实现方式中的方法。
在又一种可能的设计中，所述通信装置包括处理器，处理器可以用于与存储器耦合。所述存储器可以保存实现上述第一方面涉及的功能的必要计算机程序或指令。所述处理器可执行所述存储器存储的计算机程序或指令，当所述计算机程序或指令被执行时，使得所述通信装置实现上述第一方面任意可能的设计或实现方式中的方法。
在又一种可能的设计中，所述通信装置包括处理器和接口电路，其中，处理器用于通过所述接口电路与其它装置通信，并执行上述第一方面任意可能的设计或实现方式中的方法。
第四方面，本申请实施例提供一种通信装置，所述通信装置可以为接入网设备或者设置在接入网设备内部的芯片。所述通信装置具备实现上述第二方面的功能，比如，所述通信装置包括执行上述第二方面涉及操作所对应的模块或单元或手段，所述模块或单元或手段可以通过软件实现，或者通过硬件实现，也可以通过硬件执行相应的软件实现。
在一种可能的设计中，所述通信装置包括处理单元、通信单元，其中，通信单元又可称为是收发单元，通信单元可以用于收发信号，以实现该通信装置和其它装置之间的通信，比如，通信单元用于接收来自终端设备的配置信息；处理单元可以用于执行该通信装置的一些内部操作。
基于该种设计，在一个实施例中，处理单元用于：确定第一指示信息，第一指示信息用于指示第一控制信息的目标监听时机，第一控制信息用于调度多播业务的信息；通信单元用于：向终端设备发送第一指示信息；其中，目标监听时机包括第一控制信息的多个监听时机中的至少一个监听时机。
在该实施例的一种可能的实现方式中，通信单元还用于：向所述终端设备发送配置信息，所述配置信息用于配置所述多播业务的第一搜索空间和所述多播业务的至少一个控制资源集合，所述至少一个控制资源集合包括第一控制资源集合；其中，第一搜索空间关联第一控制资源集合，第一搜索空间和第一控制资源集合对应所述多个监听时机。
在该实施例的一种可能的实现方式中，所述至少一个控制资源集合还包括第二控制资源集合；通信单元还用于：向所述终端设备发送第二指示信息，第二指示信息用于指示第一搜索空间关联的第二控制资源集合切换为第一控制资源集合。
在该实施例的一种可能的实现方式中，第一指示信息包括以下至少一项：(1)监听周期信息，所述监听周期信息用于指示监听第一控制信息的周期；(2)偏移量信息，所述偏移量信息用于指示目标监听时机在所述周期中的偏移量；(3)监听时长信息，所述监听时长信息用于指示在所述周期内监听第一控制信息的时长。
在该实施例的一种可能的实现方式中，所述监听周期信息包括以下至少一项：所述周期包括的无线帧的个数、所述周期包括的无线子帧的个数、所述周期包括的时隙的个数、所述周期包括的符号的个数、所述周期包括的监听时机的个数；所述偏移量信息包括以下至少一项：所述偏移量包括的无线帧的个数、所述偏移量包括的无线子帧的个数、所述偏移量包括的时隙的个数、所述偏移量包括的符号的个数、所述偏移量包括的监听时机的个数；所述监听时长信息包括以下至少一项：所述时长包括的无线帧的个数、所述时长包括的无线子帧的个数、所述时长包括的时隙的个数、所述时长包括的符号的个数、所述时长包括的监听时机的个数；其中，所述时长包括的监听时机为目标监听时机。
在该实施例的一种可能的实现方式中，通信单元还用于：向所述终端设备发送第三指示信息，第三指示信息用于指示所述周期的起始时刻。
在该实施例的一种可能的实现方式中，第三指示信息包括以下至少一项：无线帧的标识、无线子帧的标识、时隙的标识、符号的标识。
在该实施例的一种可能的实现方式中，所述周期包括的起始监听时机为所述多个监听时机中位于所述起始时刻之后的第一个监听时机；或者，所述起始监听时机为所述多个监听时机中距离所述起始时刻最近的监听时机。
在该实施例的一种可能的实现方式中，通信单元还用于：向所述终端设备发送第四指示信息，第四指示信息包括以下至少一项：第一传输配置指示TCI状态的标识、第一搜索空间对应的小区的标识、第一搜索空间对应的BWP的标识；第一TCI状态的标识用于所述终端设备确定监听第一控制信息的波束。
在该实施例的一种可能的实现方式中，通信单元还用于：向所述终端设备发送第一配置信息，第一配置信息用于配置所述多播业务的至少两个搜索空间和所述多播业务的至少一个控制资源集合，所述至少一个控制资源集合包括第一控制资源集合；所述至少两个搜索空间关联第一控制资源集合，所述至少两个搜索空间和第一控制资源集合对应所述多个监听时机。
在该实施例的一种可能的实现方式中，第一指示信息包括所述至少两个搜索空间中第一搜索空间的标识；第一搜索空间和第一控制资源集合对应目标监听时机。
在该实施例的一种可能的实现方式中，第一指示信息包括至少一个TCI状态的标识；所述至少一个TCI状态中包括第一TCI状态，第一TCI状态对应第一搜索空间，第一搜索空间和第一控制资源集合对应目标监听时机。
在又一种可能的设计中，所述通信装置包括处理器，处理器可以用于与存储器耦合。所述存储器可以保存实现上述第二方面涉及的功能的必要计算机程序或指令。所述处理器可执行所述存储器存储的计算机程序或指令，当所述计算机程序或指令被执行时，使得所述通信装置实现上述第二方面任意可能的设计或实现方式中的方法。
在又一种可能的设计中，所述通信装置包括处理器和接口电路，其中，处理器用于通过所述接口电路与其它装置通信，并执行上述第二方面任意可能的设计或实现方式中的方法。
可以理解地，上述第三方面或第四方面中，处理器可以通过硬件来实现也可以通过软件来实现，当通过硬件实现时，该处理器可以是逻辑电路、集成电路等；当通过软件来实现时，该处理器可以是一个通用处理器，通过读取存储器中存储的软件代码来实现。此外，以上处理器可以为一个或多个，存储器可以为一个或多个。存储器可以与处理器集成在一起，或者存储器与处理器分离设置。在具体实现过程中，存储器可以与处理器集成在同一块芯片上，也可以分别设置在不同的芯片上，本申请实施例对存储器的类型以及存储器与处理器的设置方式不做限定。需要说明的是，上述第三方面或第四方面所涉及的通信装置可以包括存储器，或者也可以不包括存储器。
第五方面，本申请实施例提供一种通信系统，该通信系统包括上述第三方面所述的通信装置和上述第四方面所述的通信装置。
第六方面，本申请提供一种计算机可读存储介质，所述计算机存储介质中存储有计算机可读指令，当计算机读取并执行所述计算机可读指令时，使得计算机执行上述第一方面或第二方面的任一种可能的设计中的方法。
第七方面，本申请提供一种计算机程序产品，当计算机读取并执行所述计算机程序产品时，使得计算机执行上述第一方面或第二方面的任一种可能的设计中的方法。
第八方面，本申请提供一种芯片，所述芯片包括处理器，所述处理器与存储器耦合，用于读取并执行所述存储器中存储的软件程序，以实现上述第一方面或第二方面的任一种可能的设计中的方法。可选地，所述芯片还包括所述存储器。
本申请的这些方面或其它方面在以下实施例的描述中会更加简明易懂。
附图说明
图1为本申请实施例适用的一种网络架构示意图；
图2a为本申请实施例提供的一种CU-DU分离架构的示意图；
图2b为本申请实施例提供的又一种CU-DU分离架构的示意图；
图3为本申请实施例提供的一种搜索空间的参数示例；
图4为接入网设备配置的控制信息的多个监听时机和接入网设备分时通过不同波束发送控制信息示例；
图5为本申请实施例一提供的通信方法所对应的流程示意图；
图6a为本申请实施例提供的切换第一搜索空间关联的控制资源集合示例；
图6b为本申请实施例提供的分组示例；
图7为本申请实施例提供的终端设备在目标监听时机上进行监听的启动时间和结束时间示例；
图8为本申请实施例提供的目标监听时机的一些示例；
图9为本申请实施例提供的接入网设备向终端设备发送的多种MAC CE格式示例；
图10为本申请实施例二提供的通信方法所对应的流程示意图；
图11为本申请实施例提供的接入网设备向终端设备发送的多种MAC CE格式示例；
图12为本申请实施例提供的激活TCI的几种示例；
图13为本申请实施例提供的激活TCI的几种示例；
图14为本申请实施例中所涉及的装置的可能的示例性框图；
图15为本申请实施例提供的一种终端设备的结构示意图；
图16为本申请实施例提供的一种接入网设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。
图1为本申请实施例适用的一种网络架构示意图。如图1所示，终端设备(比如终端设备1301或终端设备1302)可接入到无线网络，以通过无线网络获取外网(例如数据网络(data network，DN))的服务，或者通过无线网络与其它设备通信，如可以与其它终端设备通信。该无线网络包括无线接入网(radio access network，RAN)和核心网(core network，CN)；其中，RAN也可以称为接入网(access network，AN)，用于将终端设备接入到无线网络，CN用于对终端设备进行管理并提供与DN通信的网关。
其中，RAN中可以包括一个或多个接入网设备，比如接入网设备1101、接入网设备1102。CN中可以包括一个或多个核心网网元，比如核心网网元120。
下面分别对终端设备、接入网设备、核心网网元进行详细说明。
一、终端设备
终端设备，又可以称为用户设备(user equipment，UE)，包括向用户提供语音和/或数据连通性的设备，例如可以包括具有无线连接功能的手持式设备、或连接到无线调制解调器的处理设备。该终端设备可以经无线接入网(radio access network，RAN)与核心网进行通信，与RAN交换语音和/或数据。该终端设备可以包括无线终端设备、移动终端设备、设备到设备通信(device-to-device，D2D)终端设备、车到一切(vehicle to everything，V2X)终端设备、机器到机器/机器类通信(machine-to-machine/machine-type communications，M2M/MTC)终端设备、物联网(internet of things，IoT)终端设备、订户单元、订户站，移动站、远程站、接入点(access point，AP)、远程终端、接入终端、用户终端、用户代理、或用户装备等。例如，可以包括移动电话(或称为“蜂窝”电话)，具有移动终端设备的计算机，便携式、袖珍式、手持式、计算机内置的移动装置等。例如，个人通信业务(personal communication service，PCS)电话、无绳电话、会话发起协议(session initiation protocol，SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、等设备。还包括受限设备，例如功耗较低的设备，或存储能力有限的设备，或计算能力有限的设备等。例如包括条码、射频识别(radio frequency identification，RFID)、传感器、全球定位系统(global positioning system，GPS)、激光扫描器等信息传感设备。
本申请实施例中，用于实现终端设备的功能的装置可以是终端设备，也可以是能够支持终端设备实现该功能的装置，例如芯片系统或可实现终端设备功能的组合器件、部件，该装置可以被安装在终端设备中。本申请实施例中，芯片系统可以由芯片构成，也可以包括芯片和其他分立器件。本申请实施例提供的技术方案中，以用于实现终端的功能的装置是终端设备为例，描述本申请实施例提供的技术方案。
二、接入网设备
接入网设备为将终端设备接入到无线网络的节点或设备，接入网设备又可以称为基站。接入网设备例如包括但不限于：5G通信系统中的新一代基站(generation Node B，gNB)、演进型节点B(evolved node B，eNB)、无线网络控制器(radio network controller，RNC)、 节点B(node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站((home evolved nodeB，HeNB)或(home node B，HNB))、基带单元(baseBand unit，BBU)、传输接收点(transmitting and receiving point，TRP)、发射点(transmitting point，TP)、或移动交换中心等。
本申请实施例中，用于实现接入网设备的功能的装置可以是接入网设备，也可以是能够支持接入网设备实现该功能的装置，例如芯片系统或可实现接入网设备功能的组合器件、部件，该装置可以被安装在接入网设备中。在本申请实施例提供的技术方案中，以用于实现接入网设备的功能的装置是接入网设备为例，描述本申请实施例提供的技术方案。
其中，接入网设备与终端设备之间的接口可以为Uu接口(或称为空口)。当然，在未来通信中，这些接口的名称可以不变，或者也可以用其它名称代替，本申请对此不限定。示例性地，接入网设备和终端设备之间的通信遵循一定的协议层结构，例如控制面协议层结构可以包括无线资源控制(radio resource control，RRC)层、分组数据汇聚层协议(packet data convergence protocol，PDCP)层、无线链路控制(radio link control，RLC)层、媒体接入控制(media access control，MAC)层和物理层；用户面协议层结构可以包括PDCP层、RLC层、MAC层和物理层，在一种可能的实现中，PDCP层之上还可以包括业务数据适配(service data adaptation protocol，SDAP)层。
接入网设备可以由一个节点实现RRC、PDCP、RLC和MAC等协议层的功能，或者可以由多个节点实现这些协议层的功能。例如，在一种演进结构中，接入网设备可以包括一个或多个集中单元(centralized unit，CU)和一个或多个分布单元(distributed unit，DU)，多个DU可以由一个CU集中控制。作为示例，CU和DU之间的接口可以称为F1接口，其中，控制面(control panel，CP)接口可以为F1-C，用户面(user panel，UP)接口可以为F1-U。CU和DU可以根据无线网络的协议层划分：比如图2a所示，PDCP层及以上协议层的功能设置在CU，PDCP层以下协议层(例如RLC层和MAC层等)的功能设置在DU。
可以理解地，上述对CU和DU的处理功能按照协议层的划分仅仅是一种举例，也可以按照其他的方式进行划分，比如RLC层以上协议层的功能设置在CU，RLC层及以下协议层的功能设置在DU，又比如可以将CU或者DU划分为具有更多协议层的功能，又比如CU或DU还可以划分为具有协议层的部分处理功能。在一种设计中，将RLC层的部分功能和RLC层以上的协议层的功能设置在CU，将RLC层的剩余功能和RLC层以下的协议层的功能设置在DU。在另一种设计中，还可以按照业务类型或者其他系统需求对CU或者DU的功能进行划分，例如按时延划分，将处理时间需要满足时延要求的功能设置在DU，不需要满足该时延要求的功能设置在CU。在另一种设计中，CU也可以具有核心网的一个或多个功能。示例性地，CU可以设置在网络侧方便集中管理；DU可以具有多个射频功能，也可以将射频功能拉远设置。本申请实施例对此并不进行限定。
示例性地，CU的功能可以由一个实体来实现，或者也可以由不同的实体来实现。例如，如图2b所示，可以对CU的功能进行进一步切分，即将控制面和用户面分离并通过不同实体来实现，分别为控制面CU实体(即CU-CP实体)和用户面CU实体(即CU-UP实体)，CU-CP实体和CU-UP实体可以与DU相耦合，共同完成接入网设备的功能。CU-CP实体与CU-UP实体之间的接口可以为E1接口，CU-CP实体与DU之间的接口可以为F1-C接口，CU-UP实体与DU之间的接口可以为F1-U接口。其中，一个DU和一个CU-UP可 以连接到一个CU-CP。在同一个CU-CP控制下，一个DU可以连接到多个CU-UP，一个CU-UP可以连接到多个DU。
需要说明的是：在上述图2a和图2b所示意的架构中，CU产生的信令可以通过DU发送给终端设备，或者终端设备产生的信令可以通过DU发送给CU。DU可以不对该信令进行解析而直接通过协议层封装后透传给终端设备或CU。以下实施例中如果涉及这种信令在DU和终端设备之间的传输，此时，DU对信令的发送或接收包括这种场景。例如，RRC或PDCP层的信令最终会处理为物理层的数据发送给终端设备，或者，由接收到的物理层的数据转变而来。在这种架构下，该RRC或PDCP层的信令，即也可以认为是由DU发送的，或者，由DU和射频装置发送的。
三、核心网网元
以5G通信系统为例，CN中的核心网网元可以包括接入和移动性管理功能(access and mobility management function，AMF)网元、会话管理功能(session management function，SMF)网元、用户面功能(user plane function，UPF)网元、策略控制功能(policy control function，PCF)网元等，具体不做限定。
上述图1所示意的网络架构可以适用于各种无线接入技术(radio access technology，RAT)的通信系统中，例如可以是4G(或者称为长期演进(long term evolution，LTE))通信系统，也可以是5G(或者称为新无线(new radio，NR))通信系统，也可以是LTE通信系统与5G通信系统之间的过渡系统，该过渡系统也可以称为4.5G通信系统，当然也可以是未来的通信系统。本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着通信网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。本申请以下实施例中的装置，根据其实现的功能，可以位于终端设备或接入网设备。当采用以上CU-DU的结构时，接入网设备可以为CU、或DU、或包括CU和DU的接入网设备。
下面先对本申请实施例所涉及的相关技术特征进行解释说明。需要说明的是，这些解释是为了让本申请更容易被理解，而不应该视为对本申请所要求的保护范围的限定。
一、波束
以上述图1所示意的网络架构适用于5G通信系统为例，5G通信系统将会采用相对于LTE更高的载波频率(一般地，大于6GHz以上)，比如28GHz、38GHz、或者72GHz频段等，来实现更大带宽、更高传输速率的无线通信。由于载波频率较高，使得其发射的无线信号在空间传播过程中经历更加严重的衰落，甚至在接收端难以检测出该无线信号。因此，5G通信系统中将采用波束赋形(beamforming，BF)技术来获得具有良好方向性的波束，以提升天线增益，提高在发射方向上的功率。示例性地，在小于6GHz的载波频率上，也可以采用波束的方式，提高频谱空间复用率。
波束可以理解为一种通信资源，波束可以是宽波束，也可为窄波束，或其它类型的波束。不同的波束可认为是不同的通信资源，通过不同的波束可发送相同的信息或不同的信息。波束包括发送波束和接收波束，发送波束可以是指信号经天线发射出去后在空间不同方向上形成的信号强度的分布，接收波束可以是指天线阵列对无线信号在空间不同方向上进行加强或削弱接收的分布。本申请实施例中，举个例子，接入网设备通过发送波束x1 发送信息，相应地，终端设备可通过接收波束x2接收到信息，此种情形下，发送波束x1和接收波束x2可以理解为一个波束对。需要说明的是，本申请实施例对发送波束和接收波束也可以不做明确区分，上述发送波束x1和接收波束x2可以统称为波束x，如此可以理解为，接入网设备通过波束x发送信息，相应地，终端设备可通过波束x接收信息。
二、传输配置指示状态
在下行数据传输中，接入网设备在采用一个特定的波束向终端设备发送数据时，需要告知终端设备其采用的发送波束信息，这样终端设备才能采用与该发送波束相对应的接收波束来接收接入网设备发送的数据。
示例性地，接入网设备可以通过传输配置指示(transmission configuration indicator，TCI)字段，来向终端设备指示其采用的发送波束的相关信息。其中，TCI字段包括多个比特，比如包括3个比特，则可以表示8个不同的值。TCI字段的每个值对应一个TCI状态(state)的索引(或称为标识)，该索引可以标识一个TCI状态，TCI状态包括多个参数，通过这些参数可以确定发送波束的相关信息。
三、搜索空间和控制资源集合
一个搜索空间可以关联一个控制资源集合。搜索空间和其关联的控制资源集合可以对应控制信息的多个监听时机。
(1)控制资源集合
控制资源集合决定了监听时机的频域资源，即控制信息可以在控制资源集合对应的频域资源上传输，控制资源集合对应的频域资源可以包括多个资源块(resource block，RB)。
控制资源集合可以配置有一个或多个TCI状态。控制资源集合对应的控制信息可以采用为该控制资源集合配置的一个或多个TCI状态中的一个TCI状态来进行传输，具体采用哪一个TCI状态可以是通过接入网设备发送的信令来进行激活。也就是说，虽然接入网设备为一个控制资源集合配置了多个TCI状态，但这些TCI状态是没有激活的(没有生效的)，只有通过信令激活后才能生效。
(2)搜索空间
搜索空间决定了传输监听时机的时域资源，搜索空间可以配置有一些时域信息，比如：周期(为便于区分，将此处的周期称为第一周期，第一周期即为监听搜索空间的时间间隔，单位可以为时隙)；时隙偏移(即从第一周期开始到实际监听搜索空间之间的时隙偏移量，且该时隙偏移量小于监听第一周期的取值)；第一持续时间(通过duration参数配置，即连续监听搜索空间的时间，可以包括多个时隙，且包括的时隙数量小于监听第一周期的取值)；时域起始位置(即每个时隙内，搜索空间关联的控制资源集合对应的时域起始位置)，每个时域起始位置可以理解为一个监听时机的时域起始位置。
为了方便理解，以具体例子介绍控制资源集合和搜索空间的各参数的含义。如图3所示，其中，第一周期为10个时隙，时隙偏移为3个时隙，第一持续时间为2个时隙，时域起始位置为一个时隙内的符号0和符号7，控制资源集合的第二持续时间(通过控制资源集合的duration参数配置，即指示监听时机所包括的符号个数)为2个符号。在这个示例中，在每10个时隙的监听第一周期内共有4个监听时机，其中，时隙3中的符号0和符号1可以理解为一个监听时机，时隙3中的符号7和符号8可以理解为一个监听时机，时隙4中的符号0和符号1可以理解为一个监听时机，时隙4中的符号7和符号8可以理解为一个监听时机。
四、多播传输技术
多播传输技术是一个发送方进行数据发送，而多个接收方对数据进行接收的传输技术；例如接入网设备发送数据，多个终端设备对数据进行接收。其中，一种可能的多播传输技术为单小区点到多点(single cell point to multipoint，SC-PTM)技术。在SC-PTM技术中，可以使用物理下行共享信道(physical downlink share channel，PDSCH)传输多播业务的数据。区别于承载单播业务的PDSCH，承载多播业务的PDSCH可以称为多播PDSCH。接入网设备可以预先配置多播业务与组无线网络临时标识(group-radio network temporary identity，G-RNTI)之间的关联关系，每个多播业务可以关联一个G-RNTI。
在单播传输中，接入网设备可以向终端设备发送承载于物理下行控制信道(physical downlink control channel，PDCCH)的控制信息(比如下行控制信息(downlink control information，DCI))，该DCI用于调度承载某一业务(该业务可以为单播业务或多播业务)的单播PDSCH，该DCI可以通过小区无线网络临时标识(cell-radio network temporary identity，C-RNTI)加扰；相应地，终端设备根据C-RNTI检测到DCI之后，可以根据该DCI包括的调度信息来接收单播PDSCH。
类似地，在多播传输中，接入网设备可以向多个对多播业务感兴趣的终端设备发送DCI，该DCI用于调度该多播业务的信息，该多播业务的信息可以承载于多播PDSCH中，该DCI可以通过该多播业务关联的G-RNTI加扰；相应地，多个终端设备根据该多播业务关联的G-RNTI检测到DCI之后，可以根据该DCI包括的调度信息来接收多播业务的信息。
基于上述相关技术特征，在图1所示意的网络架构中，假设接入网设备的覆盖范围内包括多个终端设备，其中终端设备1、终端设备2、终端设备3均对多播业务感兴趣；此种情形下，接入网设备可以为终端设备1、终端设备2、终端设备3配置控制信息的多个监听时机，该控制信息用于调度多播业务的信息；进而终端设备1、终端设备2、终端设备3均在多个监听时机上监听控制信息。参见图4，示意出了接入网设备配置的控制信息的多个监听时机(比如监听时机1至监听时机6)。
然而，当引入波束技术后，接入网设备可以在不同时间通过不同的波束发送控制信息，来完成小区的广播波束覆盖；比如，继续参见图4，接入网设备可以在T1时间段内的某一监听时机上使用波束1发送控制信息，在T2时间段内的某一监听时机上使用波束2发送控制信息，在T3时间段内的某一监听时机上使用波束3发送控制信息。参见图4所示，终端设备1位于波束1的覆盖范围内，终端设备2位于波束2的覆盖范围内，终端设备3位于波束3的覆盖范围内。此种情形下，以终端设备3为例，由于在T1时间段和T2时间段内接入网设备不使用波束3发送控制信息，因此，终端设备3在T1时间段和T2时间段内的监听时机上不会监听到控制信息，而是可能会在T3时间段内的监听时机上监听到控制信息。也就是说，终端设备3在T1时间段和T2时间段内的监听时机上进行监听属于不必要的监听。类似地，终端设备1在T2时间段和T3时间段内的监听时机上进行监听属于不必要的监听，终端设备2在T1时间段和T3时间段内的监听时机上进行监听属于不必要的监听。由此可以看出，在多播传输技术中，当接入网设备分时通过不同波束发送控制信息时，会导致终端设备不必要的监听，从而使得终端设备的功耗较大。
基于此，本申请实施例提供一种通信方法，用于减少终端设备不必要的监听，降低终端设备的功耗。
示例性地，本申请实施例提供的方法可以包括：终端设备接收第一指示信息，第一指示信息用于指示第一控制信息的目标监听时机，进而终端设备可以在目标监听时机上监听第一控制信息，第一控制信息用于调度多播业务的信息。其中，目标监听时机包括第一控制信息的多个监听时机中的至少一个监听时机，或者说，目标监听时机包括第一控制信息的多个监听时机中的部分监听时机，又或者说，目标监听时机包括第一控制信息的M个监听时机中的N个监听时机，其中N小于M，M、N均为正整数，又或者说，目标监听时机包括第一控制信息的监听时机集合中的部分监听时机。采用该种方式，由于接入网设备向终端设备发送第一指示信息来指示目标监听时机，从而使得终端设备可以在目标监听时机上进行监听，相比于终端设备在第一控制信息的多个监听时机上均进行监听的方式来说，能够有效减少终端设备不必要的监听，降低终端设备的功耗。
下面结合实施例一和实施例二，对本申请实施例提供的通信方法进行详细描述。
在下文的介绍过程中，以该方法应用于图1所示的系统架构为例。另外，该方法可由两个通信装置执行，这两个通信装置例如为第一通信装置和第二通信装置，其中，第一通信装置可以是接入网设备或能够支持接入网设备实现该方法所需的功能的通信装置，当然还可以是其他通信装置，例如芯片或芯片系统。第二通信装置可以是终端设备或能够支持终端设备实现该方法所需的功能的通信装置，当然还可以是其他通信装置，例如芯片或芯片系统。为了便于介绍，在下文中，以该方法由接入网设备和终端设备执行为例，也就是，以第一通信装置是接入网设备、第二通信装置是终端设备为例。如果将本实施例应用在图1所示的系统架构，下文中所述的用于执行图5或图10所示的实施例的接入网设备可以是图1所示的接入网设备1101，下文中所述的用于执行图5或图10所示的实施例的终端设备可以是图1所示的终端设备1301。
需要说明的是，接入网设备的覆盖范围内可以包括对多播业务(比如第一多播业务)感兴趣的多个终端设备，在实施例一和实施例二中，将以接入网设备与对第一多播业务感兴趣的其中一个终端设备之间的通信为例进行描述。
实施例一
图5为本申请实施例一提供的通信方法所对应的流程示意图。如图5所示，包括：
S501，接入网设备发送配置信息，配置信息用于配置第一多播业务的第一搜索空间和所述第一多播业务的至少一个控制资源集合；相应地，终端设备可以接收配置信息。
一、针对配置信息进行描述。
在一个示例中，配置信息可以配置第一多播业务的第一搜索空间和第一多播业务的第一控制资源集合，以及还可以配置第一搜索空间与第一控制资源集合关联。比如配置信息中可以包括第一搜索空间的配置(SearchSpace config)，第一搜索空间的配置中可以包括controlResourceSetId参数，当controlResourceSetId参数包括第一控制资源集合的标识时，表示第一搜索空间与第一控制资源集合关联。进而，终端设备可以根据配置信息，确定第一搜索空间和第一控制资源集合对应第一控制信息的多个监听时机。其中，第一控制信息比如可以为DCI，用于调度第一多播业务的信息，第一多播业务的信息可以包括第一多播业务的上行信息和/或下行信息，信息可以包括数据和/或控制信令等，具体不做限定。
在又一个示例中，配置信息可以配置第一多播业务的第一搜索空间和第一多播业务的至少两个控制资源集合，以及还可以配置第一搜索空间与至少两个控制资源集合中的一个 控制资源集合(比如第二控制资源集合)关联。进而，终端设备可以根据配置信息，确定第一搜索空间和第二控制资源集合对应第一控制信息的多个监听时机(为便于区分，此处的监听时机可以称为原始监听时机)，参见图6a所示。此种情形下，接入网设备后续还可以向终端设备发送第二指示信息，第二指示信息用于指示第一搜索空间关联的第二控制资源集合切换为至少两个控制资源集合中的另一控制资源集合(比如第一控制资源集合)，其中，切换也可以描述为更新。进而，终端设备接收到第二指示信息后，可以根据第二指示信息确定第一搜索空间和所述第一控制资源集合对应第一控制信息的多个监听时机。此处，第二指示信息用于指示第一搜索空间关联的第二控制资源集合切换为第一控制资源集合，也可以理解为，第二指示信息用于指示第一搜索空间关联第一控制资源集合，此种情形下，终端设备接收到第二指示信息后，可以认为接入网设备通过第二指示信息重配置了第一搜索空间关联第一控制资源集合，之前配置信息所配置的第一搜索空间关联第二控制资源集合失效。比如，第二指示信息可以包括第一控制资源集合的标识。采用该种方式，接入网设备可以灵活控制第一搜索空间关联的控制资源集合，从而增加了接入网设备调控的灵活性。
示例性地，接入网设备向终端设备发送第二指示信息的方式可以有多种，比如接入网设备可以通过MAC控制元素(control element，CE)或DCI向终端设备发送第二指示信息。
需要说明的是，当需要再次切换第一搜索空间关联的控制资源集合时，接入网设备还可以向终端设备发送第二指示信息，暂未在图6a中示意；本申请实施例中对切换第一搜索空间关联的控制资源集合的次数不做限定。
二、针对接入网设备向终端设备发送配置信息的方式进行描述。
示例性地，接入网设备向终端设备发送配置信息的方式可以有多种，比如接入网设备可以通过RRC消息或系统消息向终端设备发送第一多播业务对应的多播配置信息，多播配置信息中可以包括上述配置信息，进一步地，多播配置信息中还可以包括第一多播业务关联的G-RNTI和/或G-RNTI对应的带宽部分(bandwidth part，BWP)信息。其中，BWP信息可以包括BWP的标识，比如该BWP为BWP1，此种情形下，配置信息所配置的控制资源集合对应的频域资源均位于BWP1范围内。
需要说明的是，上述S501可以为可选步骤，比如第一控制信息的多个监听时机可以为预先定义好的，此种情形下，可以不再执行S501。
S502，接入网设备向终端设备发送第一指示信息，第一指示信息用于指示第一控制信息的目标监听时机；相应地，终端设备可以接收第一指示信息。
S503，终端设备在目标监听时机上监听第一控制信息。
一、针对第一指示信息进行描述。
示例性地，第一指示信息指示第一控制信息的目标监听时机的方式可以有多种，下面描述两种可能的实现方式，分别为实现方式1和实现方式2。
实现方式1
在实现方式1中，第一指示信息可以包括以下至少一项：监听周期信息、偏移量信息、监听时长信息。比如，第一指示信息可以包括监听周期信息和偏移量信息，此种情形下，监听时长信息可以为协议预先定义好的；又比如，第一指示信息可以包括偏移量信息和监听时长信息，此种情形下，监听周期信息可以为协议预先定义好的。
(1)监听周期信息可以用于指示第二周期，第二周期可以为终端设备监听第一控制信息的周期。比如，第二周期可以包括以下至少一项：一个或多个无线帧、一个或多个无线子帧、一个或多个时隙、一个或多个符号、一个或多个监听时机。
具体来说，第二周期(可以为任一个第二周期)可以包括一个或多个无线帧，此种情形下，监听周期信息可以包括第二周期所包括的无线帧的个数；或者，第二周期可以包括一个或多个无线子帧，此种情形下，监听周期信息可以包括第二周期所包括的无线子帧的个数；或者，第二周期可以包括一个或多个时隙，此种情形下，监听周期信息可以包括第二周期所包括的时隙的个数；或者，第二周期可以包括一个或多个符号，此种情形下，监听周期信息可以包括第二周期所包括的符号的个数；或者，第二周期可以包括一个或多个监听时机，此种情形下，监听周期信息可以包括第二周期所包括的监听时机的个数。
本申请实施例中，第二周期可以等于接入网设备进行一次波束扫描的时长，比如接入网设备共可使用8个波束(比如波束1至波束8)，则接入网设备从波束1开始轮流至波束8结束可以称为一次波束扫描。
(2)偏移量信息可以用于指示目标监听时机在偏移量中的偏移量。比如，偏移量可以包括以下至少一项：一个或多个无线帧、一个或多个无线子帧、一个或多个时隙、一个或多个符号、一个或多个监听时机。
具体来说，偏移量可以包括一个或多个无线帧，此种情形下，偏移量信息可以包括偏移量所包括的无线帧的个数；或者，偏移量可以包括一个或多个无线子帧，此种情形下，偏移量信息可以包括偏移量所包括的无线子帧的个数；或者，偏移量可以包括一个或多个时隙，此种情形下，偏移量信息可以包括偏移量所包括的时隙的个数；或者，偏移量可以包括一个或多个符号，此种情形下，偏移量信息可以包括偏移量所包括的符号的个数；或者，偏移量可以包括一个或多个监听时机，此种情形下，偏移量信息可以包括偏移量所包括的监听时机的个数。
(3)监听时长信息可以用于指示监听时长，监听时长可以为终端设备在第二周期内监听第一控制信息的时长。比如，监听时长可以包括以下至少一项：一个或多个无线帧、一个或多个无线子帧、一个或多个时隙、一个或多个符号、一个或多个监听时机。
具体来说，监听时长可以包括一个或多个无线帧，此种情形下，监听时长信息可以包括该时长所包括的无线帧的个数；或者，监听时长可以包括一个或多个无线子帧，此种情形下，监听时长信息可以包括该时长所包括的无线子帧的个数；或者，监听时长可以包括一个或多个时隙，此种情形下，监听时长信息可以包括该时长所包括的时隙的个数；或者，监听时长可以包括一个或多个符号，此种情形下，监听时长信息可以包括该时长所包括的符号的个数；或者，监听时长可以包括一个或多个监听时机，此种情形下，监听时长信息可以包括该时长所包括的监听时机的个数。可以理解地，该时长内所包括的监听时机即为目标监听时机。
基于上文的描述，比如当监听周期信息包括第二周期所包括的监听时机的个数、偏移量信息可以包括偏移量所包括的监听时机的个数时，在每个第二周期内，满足“监听时机的标识mod监听周期信息＝偏移量信息，mod表示取余运算”的监听时机为该第二周期内的第一个目标监听时机；进一步地，根据监听时长信息，可以确定该第二周期内的其它目标监听时机。此处，监听时机的标识可以为监听时机的编号，该编号可以为接入网设备和终端设备预先协商好的，具体不做限定。有关第一指示信息指示目标监听时机的详细内容 可以参见后文图8所描述的一些示例。
实现方式2
在实现方式2中，第一控制信息的多个监听时机可以属于至少两个分组，每个分组包括的监听时机的个数可以相同，至少两个分组可以按照第三周期进行周期性循环；参见图6b所示，假设将第一控制信息的多个监听时机划分到分组1和分组2，每个分组包括2个监听时机，每个监听时机只属于一个分组，则第三周期可以包括4个监听时机。需要说明的是，本申请实施例中所描述的每个分组包括的监听时机的个数，可以是指，在一个第三周期内，每个分组包括的监听时机的个数。
示例性地，第一指示信息用于指示至少两个分组中的第一分组，第一分组所包括的监听时机均为目标监听时机。
在一个示例中，第一指示信息可以包括第一分组的索引信息。比如第一控制信息的多个监听时机的分组个数为4(分别为分组1、分组2、分组3和分组4)，则各个分组的索引信息可以包括2个比特，比如当2个比特的取值为00时，表示分组1；当2个比特的取值为01时，表示分组2；当2个比特的取值为10，表示分组3；当2个比特的取值为11时，表示分组4。此种情形下，若第一指示信息所包括的第一分组的索引信息为00，则第一分组为分组1，每个第三周期内的分组1所包括的监听时机均为目标监听时机。
在又一个示例中，比如第一控制信息的多个监听时机的分组个数为4(分别为分组1、分组2、分组3和分组4)，第一指示信息可以包括4个比特，分别用于指示4个分组是否包括目标监听时机，4个比特与4个分组一一对应(比如第一个比特对应分组1，第二个比特对应分组2，第三个比特对应分组3，第四个比特对应分组4)。针对于某一比特，若该比特的取值为0，则表示该比特对应的分组所包括的监听时机不是目标监听时机(即终端设备不需要在该分组所包括的监听时机上进行监听)；若该比特的取值为1，则表示该比特对应的分组所包括的监听时机均为目标监听时机。此种情形下，若第一指示信息所包括的4个比特的取值为1000，则说明第一指示信息所指示的第一分组为分组1，每个第三周期内的分组1所包括的监听时机均为目标监听时机。
在又一个示例中，第一指示信息可以包括第一分组的偏移量信息。比如第一控制信息的多个监听时机所属的分组个数为4，第一分组的偏移量信息可以包括2个比特，比如当2个比特的取值为00时，表示第一分组的偏移量为0(此时第一分组为4个比特中的第一个分组)；当2个比特的取值为01时，表示第一分组的偏移量为1(此时第一分组为4个比特中的第二个分组)；当2个比特的取值为10时，表示第一分组的偏移量为2(此时第一分组为4个比特中的第三个分组)；当2个比特的取值为11时，表示第一分组的偏移量为3(此时第一分组为4个比特中的第四个分组)。
或者，第一控制信息的多个监听时机所属的分组个数为N，则第一分组的偏移量信息所指示的偏移量可以为0、1、……N-1中的任一个；第一分组包括的监听时机满足：监听时机的标识mod分组个数＝第一分组的偏移量。举个例子，第一控制信息的多个监听时机所属的分组个数为4，则第一分组的偏移量可以为0、1、2或3，比如第一分组的偏移量为0，则表示第一分组包括的监听时机满足：监听时机的标识mod分组个数＝0。此种情形下，每个分组可以包括1个监听时机，监听时机的标识可以为监听时机的编号，该编号可以为接入网设备和终端设备预先协商好的，具体不做限定。
针对于上述三个示例，可选地，接入网设备可以通过MAC CE或DCI向终端设备发 送以下至少一项：第一控制信息的多个监听时机所属的分组个数、每个分组所包括的监听时机的个数、第三周期所包括的监听时机的个数。采用该种方式，接入网设备可以灵活调整分组个数等信息，从而更有利于接入网设备的调控。或者，这些信息也可以为协议预先定义好的，或者接入网设备预先配置好的，具体不做限定。
需要说明的是，在上述实现方式1中，接入网设备可以从多种可能的角度(比如无线帧、子帧、时隙、符号、监听时机等)来指示目标监听时机，实现较为灵活；在上述实现方式2中，接入网设备可以采用较为简单的方式来指示目标监听时机(比如通过指示分组即可指示目标监听时机)，从而能够节省传输资源。本申请实施例中的下文中将以实现方式1为例进行描述，实现方式2可以参照处理。
示例性地，接入网设备向终端设备发送第一指示信息的方式可以有多种，比如接入网设备可以通过RRC消息、MAC CE或DCI向终端设备发送第一指示信息。当第一指示信息包括监听周期信息、偏移量信息和监听时长信息时，接入网设备可以通过同一消息发送监听周期信息、偏移量信息和监听时长信息；比如接入网设备通过MAC CE向终端设备发送监听周期信息、偏移量信息和监听时长信息。或者，接入网设备也可以通过不同消息发送监听周期信息、偏移量信息和监听时长信息；比如接入网设备通过RRC消息发送监听周期信息，通过MAC CE或者DCI向终端设备发送偏移量信息和监听时长信息。
二、针对终端设备在目标监听时机上进行监听的启动时间进行描述。
如上所述，在实现方式1中，终端设备可以在多个第二周期的每个第二周期内的目标监听时机上进行监听。此外，终端设备还可以确定第二周期的起始时刻，第二周期的起始时刻可以理解为多个第二周期中的第一个第二周期(比如第二周期1)的起始时刻，或者说，第二周期的起始时刻用于终端设备确定在目标监听时机上进行监听的启动时间。其中，在启动时间之前，终端设备在第一控制信息的各个监听时机上均进行监听；在启动时间之后，终端设备在第一控制信息的目标监听时机上进行监听，非目标监听时机上不再进行监听。此外，第一个第二周期之后的其它第二周期的起始时刻均可以根据第一个第二周期的起始时刻得到，比如第二周期2的起始时刻为第一周期1的起始时刻加上第二周期的时长。
示例性地，接入网设备可以向终端设备指示第二周期的起始时刻，具体的指示方式可以有多种。
在一个示例中，接入网设备可以向终端设备发送第三指示信息，相应地，终端设备可以接收第三指示信息，第三指示信息用于指示第二周期的起始时刻，进而终端设备可以根据第三指示信息确定第二周期的起始时刻；该种指示方式可以理解为显式的指示方式。比如，第三指示信息可以包括以下至少一项：无线帧的标识、无线子帧的标识、时隙的标识、符号的标识。具体来说，当第三指示信息包括无线帧的标识时，第二周期的起始时刻可以为该无线帧的边界；当第三指示信息包括无线子帧的标识时，第二周期的起始时刻可以为该无线子帧的边界；当第三指示信息包括时隙的标识时，第二周期的起始时刻可以为该时隙的边界；当第三指示信息包括符号的标识时，第二周期的起始时刻可以为该符号的边界。当第三指示信息包括无线帧的标识和无线子帧的标识时，第二周期的起始时刻可以为该无线帧中的该无线子帧的边界。其它情形可以参照处理。
上述所涉及的边界可以为起始边界或者结束边界，以无线帧为例，无线帧的起始边界可以为该无线帧的起始位置或者该无线帧的前一个无线帧的结束位置，无线帧的结束边界可以为该无线帧的结束位置或者该无线帧的下一个无线帧的起始位置。无线帧的标识为系 统帧号(system frame number，SFN)，举个例子，第三指示信息包括的无线帧的标识为SFN#3，则第二周期的起始时刻可以为SFN#3的边界，比如可以是SFN#3的起始边界(即SFN#3的起始位置或SFN#2的结束位置)，或者是SFN#3的结束边界(即SFN#3的结束位置或SFN#4的起始位置)。再举个例子，第三指示信息包括的无线帧的标识为SFN#3、无线子帧的标识为2，则第二周期的起始时刻可以为SFN#3中的第2个无线子帧的边界，比如可以是SFN#3中的第2个无线子帧的起始边界(即SFN#3中的第1个无线子帧的结束位置或SFN#3中的第2个无线子帧的起始位置)，或者是SFN#3中的第2个无线子帧的结束边界(即SFN#3中的第2个无线子帧的结束位置或SFN#3中的第3个无线子帧的起始位置)。
其中，接入网设备向终端设备发送第三指示信息的方式可以有多种，比如接入网设备可以通过RRC消息或者MAC CE或DCI向终端设备发送第三指示信息。
在又一个示例中，接入网设备可以通过向终端设备发送所述第一指示信息来隐式指示第二周期的起始时刻。比如，终端设备可以接收第一指示信息，并确定接收第一指示信息的结束时刻为第二周期的起始时刻。其中，接收第一指示信息的结束时刻可以是指第一指示信息所在的时间单元的结束边界，比如，第一指示信息所在的时间单元可以为无线帧、无线子帧、时隙或符号等，具体不做限定。举个例子，接收第一指示信息的结束时刻可以是指第一指示信息所在的时隙的结束边界。
在又一个示例中，接入网设备可以向终端设备指示第二周期的起始时刻与第一搜索空间的起始时刻相同。
需要说明的是：在其它可能的示例中，也可以由协议预先定义第二周期的起始时刻。
此外，终端设备确定出第二周期的起始时刻之后，可以直接根据第二周期的起始时刻和第二周期的时长确定出第一个第二周期，此种情形下，第二周期的起始时刻可以理解为绝对的起始时刻(此时，启动时间可以为第二周期的起始时刻)。或者，终端设备确定出第二周期的起始时刻之后，可以先根据第二周期的起始时刻确定出第一个第二周期的起始监听时机(此时，启动时间可以为起始监听时机的起始边界)，进而根据起始监听时机和第二周期所包括的监听时机的个数确定出第一个第二周期；此种情形下，终端设备根据第二周期的起始时刻确定出第一个第二周期的起始监听时机的方式可以有多种，比如终端设备可以确定第二周期的起始时刻之后的第一个监听时机(该监听时机为第一控制信息的监听时机)为起始监听时机；又比如，终端设备可以确定距离第二周期的起始时刻最近的监听时机(该监听时机为第一控制信息的监听时机)为起始监听时机。其中，距离第二周期的起始时刻最近的监听时机可以位于第二周期的起始时刻之前，或者也可以位于第二周期的起始时刻之后。
可以理解地，在其它可能的示例中，接入网设备也可以向终端设备指示起始监听时机(不再指示第二周期的起始时刻)，比如接入网设备向终端设备发送起始监听时机的标识，进而终端设备可以确定出起始监听时机，此种情形下，启动时间可以为起始监听时机的起始边界。
此外，针对于上述实现方式2，终端设备可以确定在目标监听时机上进行监听的启动时间，比如终端设备可以确定起始监听时机(启动时间可以为起始监听时机的起始边界)，终端设备确定起始监听时机的方式可以参照上文，不再赘述。
三、针对终端设备在目标监听时机上进行监听的结束时间进行描述。
如上文描述，终端设备可以确定在目标监听时机上进行监听的启动时间，示例性地， 终端设备还可以确定在目标监听时机上进行监听的结束时间。其中，在启动时间之后、结束时间之前，终端设备可以在目标监听时机上进行监听，非目标监听时机上不再进行监听；在结束时间之后，终端设备可以在第一控制信息的各个监听时机上均进行监听(即恢复至启动时间之前的状态)。
其中，终端设备确定在目标监听时机上进行监听的结束时间的方式可以有多种。在一个示例中，参见图7中的(a)所示，接入网设备可以向终端设备发送第一时长信息，第一时长信息用于指示第一时长，进而终端设备可以根据启动时间和第一时长，确定出结束时间。其中，第一时长可以包括以下至少一项：一个或多个无线帧、一个或多个无线子帧、一个或多个时隙、一个或多个符号、一个或多个监听时机。
其中，接入网设备向终端设备发送第一时长信息的方式可以有多种，比如接入网设备可以通过RRC消息或者MAC CE或者DCI向终端设备发送第一时长信息。示例性地，接入网设备可以通过同一消息向终端设备发送第三指示信息和第一时长信息，或者也可以通过不同消息向终端设备发送第三指示信息和第一时长信息。
在又一个示例中，参见图7中的(b)所示，接入网设备可以向终端设备指示结束时间，比如接入网设备可以向终端设备发送指示信息(为便于区分，称为第五指示信息)，第五指示信息指示结束时间。比如，第五指示信息可以包括以下至少一项：无线帧的标识、无线子帧的标识、时隙的标识、符号的标识。具体来说，当第五指示信息包括无线帧的标识时，结束时间可以为该无线帧的起始边界或者结束边界；当第五指示信息包括无线子帧的标识时，结束时间可以为该无线子帧的起始边界或者结束边界；当第五指示信息包括时隙的标识时，结束时间可以为该时隙的起始边界或者结束边界；当第五指示信息包括符号的标识时，结束时间可以为该符号的起始边界或者结束边界。
其中，接入网设备向终端设备发送第五指示信息的方式可以有多种，比如接入网设备可以通过RRC消息或者MAC CE或者DCI向终端设备发送第五指示信息。示例性地，接入网设备可以通过同一消息向终端设备发送第三指示信息和第五指示信息，或者也可以通过不同消息向终端设备发送第三指示信息和第五指示信息。
在又一个示例中，参见图7中的(c)所示，接入网设备可以向终端设备发送结束指示，终端设备接收到结束指示后，可以向接入网设备回复确认消息。其中，终端设备可以在向接入网设备回复确认消息时，停止在目标监听时机上进行监听这一机制，也就是说，终端设备向接入网设备回复确认消息的时间即为在目标监听时机上进行监听的结束时间。示例性地，接入网设备向终端设备发送结束指示的方式可以有多种，比如通过DCI或MAC CE向终端设备发送结束指示。采用该种方式，接入网设备可以灵活地向终端设备发送结束指示；且由于终端设备可以在回复确认消息时，停止在目标监听时机上进行监听这一机制，从而能够有效避免终端设备和接入网设备对上述机制的停止理解不一致的问题。
四、针对目标监听时机的一些示例进行描述。
基于上述有关第一指示信息和第二周期的起始时刻的描述，终端设备接收到第一指示信息后，可以根据第一指示信息，在多个第二周期(比如第二周期1、第二周期2、第二周期3)的每个第二周期内，根据偏移量和监听时长，确定出目标监听时机。
下面结合一些具体示例进行详细描述，需要说明的是，在这些示例中，终端设备可以根据配置信息(可选地还有第二指示信息)确定第一控制信息的多个监听时机。如图8中的(a)所示。
示例1：参见图8中的(b)所示，假设第二周期的起始时刻(即第二周期1的起始时刻)为时隙1的结束时刻，第二周期包括4个时隙，偏移量为1个时隙，监听时长包括1个时隙，则以第二周期1为例，终端设备可以确定位于时隙2之后的第一个监听时机为第二周期1中的第一个目标监听时机，进而结合监听时长，可以确定出第二周期1内的其它目标监听时机。如此，终端设备可以确定位于时隙3和时隙7(后续还有其它时隙，暂未示出)中的监听时机均为目标监听时机。
示例2：假设第二周期的起始时刻(即第二周期1的起始时刻)为时隙0的结束时刻，第二周期包括6个监听时机，偏移量为2个监听时机，监听时长为2个监听时机，则终端设备可以根据第二周期1的起始时刻确定第二周期1的起始监听时机，比如，第二周期1的起始监听时机可以为多个监听时机中位于第二周期1的起始时刻之后的第一个监听时机，此种情形下，参见图8中的(c)所示；进而终端设备可以确定每个第二周期中的第三个监听时机和第四个监听时机为目标监听时机。又比如，第二周期1的起始监听时机可以为多个监听时机中距离第二周期1的起始时刻最近的监听时机，此种情形下，参见图8中的(d)所示；进而终端设备可以确定每个第二周期中的第三个监听时机和第四个监听时机为目标监听时机。
五、针对接入网设备向终端设备发送第四指示信息进行描述。
示例性地，接入网设备除了向终端设备发送第一指示信息之外，还可以向终端设备发送第四指示信息，第四指示信息可以包括以下至少一项：第一搜索空间对应的小区的标识、第一控制资源集合的标识、第一TCI状态的标识。可选地，还可以包括以下至少一项：第一搜索空间的标识、第一搜索空间对应的BWP的标识。
其中，当第四指示信息承载于MAC CE中时，第一搜索空间对应的小区的标识(即为服务小区的标识)用于指示该MAC CE适用的小区。第一控制资源集合的标识用于指示第一搜索空间关联的控制资源集合切换为第一控制资源集合。第一TCI状态的标识用于指示适用于第一控制资源集合的TCI状态为第一TCI状态，或者说针对第一控制资源集合激活的TCI状态为第一TCI状态，第一TCI状态可以用于终端设备确定监听第一控制信息的波束，也就是说，终端设备可以根据第一TCI状态的标识，使用相应的波束监听第一控制信息。可以理解地，在其它可能的示例中，接入网设备也可以向终端设备发送至少两个TCI状态的标识，终端设备从至少两个TCI状态中选择第一TCI状态，进而根据第一TCI状态确定监听第一控制信息的波束，具体实现可以参见实施例二中的描述。
在一个示例中，终端设备具有一个服务小区，接入网设备在该服务小区上为终端设备配置有第一控制信息的多个监听时机(由第一搜索空间和其关联的第一控制资源集合确定)，还有其它控制信息的多个监听时机(由其它搜索空间和其关联的控制资源集合确定)；此种情形下，接入网设备可以向终端设备发送第一搜索空间的标识和/或第一控制资源集合的标识，从而使得终端设备可以获知第一指示信息用于指示第一搜索空间和第一控制信息所对应的第一控制信息的目标监听时机，而非其它控制信息的目标监听时机。可以理解地，若上述S501中，接入网设备向终端设备发送了第二指示信息，则终端设备也可以根据第二指示信息，确定第一指示信息用于指示第一控制信息的目标监听时机，此种情形下，接入网设备发送的第四指示信息中可以不再包括第一控制资源集合的标识。
或者，若接入网设备为终端设备配置有第一控制信息的多个监听时机和其它控制信息的多个监听时机分别位于该服务小区的不同BWP上，比如第一控制信息的多个监听时机 位于BWP1(即为第一搜索空间对应的BWP)，而其它控制信息的多个监听时机位于其它BWP上，则接入网设备可以向终端设备发送BWP1的标识，从而使得终端设备可以获知第一指示信息用于指示第一控制信息的目标监听时机，而非其它控制信息的目标监听时机。
在又一个示例中，终端设备可以具有多个服务小区，接入网设备在服务小区1上为终端设备配置有第一控制信息的多个监听时机(由第一搜索空间和其关联的第一控制资源集合确定)，以及在其它服务小区上为终端设备配置其它控制信息的多个监听时机(由其它搜索空间和其关联的控制资源集合确定)；此种情形下，接入网设备还可以向终端设备发送服务小区1(即第一搜索空间对应的小区)的标识，从而使得终端设备可以获知第一指示信息用于指示第一控制信息的目标监听时机，而非其它控制信息的目标监听时机。
六、针对接入网设备向终端设备发送第一指示信息、第二指示信息、第三指示信息和第四指示信息的方式进行描述。
如上文所描述的，接入网设备可以向终端设备发送第一指示信息，可选地，还可以发送其它可能的信息，比如第二指示信息、第三指示信息和第四指示信息。根据上文有关第一指示信息、第二指示信息、第三指示信息和第四指示信息的描述可知，接入网设备可以向终端设备发送以下至少一项：(1)监听周期信息；(2)偏移量信息；(3)监听时长信息；(4)第二周期的起始时刻信息；(5)第一控制资源集合的标识；(6)第一TCI状态的标识；(7)服务小区的标识；(8)第一搜索空间的标识；(9)第一搜索空间对应的BWP的标识。
示例性地，接入网设备可以通过同一消息向终端设备发送(1)至(9)中至少一项；或者，也可以通过不同的消息向终端设备发送(1)至(9)中至少一项。
示例1，接入网设备可以通过第一MAC CE向终端设备发送(1)、(2)、(3)和(5)，其中，(1)、(2)、(3)可以统称为目标监听时机的位置指示，参见图9中的(a)，为第一MAC CE的格式示例，此外，第一MAC CE还可以包括保留(reserved)字段，保留比特的取值可以为0。
示例2，接入网设备可以通过第二MAC CE向终端设备发送(1)、(2)、(3)、(5)和(7)，参见图9中的(b)，为第二MAC CE的格式示例。
示例3，接入网设备可以通过第三MAC CE向终端设备发送(1)、(2)、(3)、(5)、(6)和(7)，参见图9中的(c)，为第三MAC CE的格式示例。需要说明的是，本申请实施例中是以TCI状态的标识包括7个比特为例进行描述的。
示例4，当终端设备对多个多播业务感兴趣时，接入网设备可以通过同一MAC CE(比如第四MAC CE)，来向终端设备指示多个多播业务的控制信息的目标监听时机。参见图9中的(d)，为第四MAC CE的格式的一种示例；其中，第四MAC CE中，第一控制资源集合的标识1和目标监听时机的位置指示1可以对应于第一多播业务，第一控制资源集合的标识2和目标监听时机的位置指示2可以对应于第二多播业务，第一控制资源集合的标识3和目标监听时机的位置指示3可以对应于第三多播业务，以此类推。
参见图9中的(e)，为第四MAC CE的格式的又一种示例。其中，图9中的(e)与图9中的(d)的区别之处在于：图9中的(e)中，可以在第四MAC CE添加扩展指示字段，扩展字段用于指示第四MAC CE中是否还有多播业务对应的第一控制资源集合的标识和目标监听时机的位置指示，或者，扩展字段用于指示该扩展字段之前的第一控制资源集合的标识和目标监听时机的位置指示是否在最后一个多播业务的第一控制资源集合的标 识和目标监听时机的位置指示。比如扩展字段可用E字段表示，该字段可以包括1个比特，当该比特的取值为1，表示第四MAC CE中至少还有一个多播业务对应的第一控制资源集合的标识和目标监听时机的位置指示；当该比特的取值为0，表示第四MAC CE中没有其它多播业务对应的第一控制资源集合的标识和目标监听时机的位置指示了。此外，第四MAC CE还可以包括保留字段，保留比特的取值可以为0。
需要说明的是，上述图9仅为几种可能的示例，本申请实施例中对各项信息所占用的比特个数不做限定。
采用上述方法，接入网设备可以为终端设备配置一个搜索空间和至少一个控制资源集合，该搜索空间和其关联的控制资源集合对应第一控制信息的多个监听时机；进而接入网设备可以将多个监听时机划分为不同的分组，进而指示终端设备在其中一个分组(该分组包括监听时机即为目标监听时机)上进行监听，从而能够有效减少终端设备不必要的监听，降低终端设备的功耗。
实施例二
图10为本申请实施例二提供的通信方法所对应的流程示意图。如图10所示，包括：
S1001，接入网设备发送第一配置信息，第一配置信息用于配置第一多播业务的至少两个搜索空间和第一多播业务的至少一个控制资源集合；相应地，终端设备可以接收配置信息。
在一个示例中，第一配置信息可以配置第一多播业务的至少两个搜索空间和第一多播业务的第一控制资源集合，以及还可以配置至少两个搜索空间和第一控制资源集合关联。进而，终端设备可以根据配置信息，确定至少两个搜索空间和第一控制资源集合对应第一控制信息的多个监听时机。
在又一个示例中，第一配置信息可以配置第一多播业务的至少两个搜索空间和第一多播业务的至少两个控制资源集合，以及还可以配置第一搜索空间与至少两个控制资源集合中的一个控制资源集合(比如第二控制资源集合)关联。进而，终端设备可以根据配置信息，确定至少两个搜索空间和第二控制资源集合对应第一控制信息的多个监听时机(为便于区分，此处的监听时机可以称为原始监听时机)。此种情形下，接入网设备后续还可以向终端设备发送第二指示信息，第二指示信息用于指示至少两个搜索空间关联的第二控制资源集合切换为至少两个控制资源集合中的另一控制资源集合(比如第一控制资源集合)，其中，切换也可以描述为更新。进而，终端设备接收到第二指示信息后，可以根据第二指示信息确定至少两个搜索空间和第一控制资源集合对应第一控制信息的多个监听时机。此处，第二指示信息用于指示至少两个搜索空间关联的第二控制资源集合切换为第一控制资源集合，也可以理解为，第二指示信息用于指示至少两个搜索空间关联第一控制资源集合，此种情形下，终端设备接收到第二指示信息后，可以认为接入网设备通过第二指示信息重配置了至少两个搜索空间关联第一控制资源集合，之前配置信息所配置的至少两个搜索空间关联第二控制资源集合失效。比如，第二指示信息可以包括第一控制资源集合的标识。采用该种方式，接入网设备可以灵活控制至少两个搜索空间关联的控制资源集合，从而增加了接入网设备调控的灵活性。
示例性地，接入网设备向终端设备发送第二指示信息的方式可以有多种，比如接入网设备可以通过MAC CE或DCI向终端设备发送第二指示信息；又比如，接入网设备也可 以通过系统消息向对第一多播业务感兴趣的多个终端设备发送第二指示信息。
此外，接入网设备向终端设备发送第一配置信息的方式，可以参见实施例一中接入网设备向终端设备发送配置信息的相关描述，具体不再赘述。
S1002，接入网设备向终端设备发送第一指示信息，第一指示信息用于指示第一控制信息的目标监听时机；相应地，终端设备可以接收第一指示信息。
S1003，终端设备在目标监听时机上监听第一控制信息。
一、针对第一指示信息进行描述。
在一个示例(称为示例1)中，第一指示信息可以包括第一搜索空间的标识。进而，终端设备接收到第一指示信息后，可以确定第一搜索空间和其关联的第一控制资源集合对应的监听时机为第一控制信息的目标监听时机，而至少两个搜索空间中的其它搜索空间和其关联的第一控制资源集合所对应的监听时机为非目标监听时机。
示例性地，接入网设备还可以向终端设备发送第四指示信息，第四指示信息可以包括以下至少一项：(1)第一TCI状态的标识、(2)第一搜索空间关联的第一控制资源集合的标识、(3)第一搜索空间对应的小区的标识、(4)第一搜索空间对应的BWP的标识。其中，各项信息的作用可以参见实施例一中的描述，不再赘述。
接入网设备向终端设备发送上述信息(比如第一搜索空间的标识和第一控制资源集合的标识)的方式可以有多种，比如可以通过第一MAC CE向终端设备发送上述信息，参见图11中的(a)所示，为第一MAC CE的格式示例。第一MAC CE中可以包括第一搜索空间的标识和第一控制资源集合的标识。
在又一个示例(称为示例2)中，第一指示信息可以包括第一TCI状态的标识。终端设备接收到第一指示信息后，根据TCI状态和搜索空间的对应关系，确定第一TCI状态对应第一搜索空间，进而可以确定第一搜索空间和其关联的第一控制资源集合对应的监听时机为第一控制信息的目标监听时机，而至少两个搜索空间中的其它搜索空间和其关联的第一控制资源集合所对应的监听时机为非目标监听时机。
示例性地，接入网设备还可以向终端设备发送第四指示信息，第四指示信息可以包括以下至少一项：(1)第一搜索空间关联的第一控制资源集合的标识、(2)第一搜索空间对应的小区的标识、(3)第一搜索空间对应的BWP的标识。其中，各项信息的作用可以参见实施例一中的描述，不再赘述。
接入网设备向终端设备发送上述信息(比如第一TCI状态的标识、服务小区的标识、和第一控制资源集合的标识)的方式可以有多种，比如可以通过第二MAC CE向终端设备发送上述信息。参见图11中的(b)所示，为第二MAC CE的格式示例，第二MAC CE中可以包括第二MAC CE适用的服务小区的标识、第一控制资源集合的标识和第一TCI状态的标识。
在又一个示例(称为示例3)中，第一指示信息可以包括至少两个TCI状态的标识。终端设备接收到第一指示信息后，可以从至少两个TCI状态中选择其中一个TCI状态(比如选择的TCI状态为第一TCI状态)；以及，根据TCI状态和搜索空间的对应关系，确定第一TCI状态对应第一搜索空间，进而可以确定第一搜索空间和其关联的第一控制资源集合对应的监听时机为第一控制信息的目标监听时机，而至少两个搜索空间中的其它搜索空间和其关联的第一控制资源集合所对应的监听时机为非目标监听时机。其中，终端设备从至少两个TCI状态中选择其中一个TCI状态的方式可以有多种。比如，终端设备可以根据 监听第二控制信息的TCI状态，从至少两个TCI状态中选择第一TCI状态，第一TCI状态与监听第二控制信息的TCI状态相同。示例性地，第二控制信息用于调度单播业务的信息。又比如，终端设备可以确定至少两个TCI状态对应的波束质量，以及根据至少两个TCI状态对应的波束质量，从至少两个TCI状态中选择第一TCI状态，第一TCI状态对应的波束质量大于或等于至少两个TCI状态中其它TCI状态对应的波束质量。又比如，终端设备可以从至少两个TCI状态中随机选择一个TCI状态。
示例性地，接入网设备还可以向终端设备发送第四指示信息，第四指示信息可以包括以下至少一项：(1)第一搜索空间关联的第一控制资源集合的标识、(2)第一搜索空间对应的小区的标识、(3)第一搜索空间对应的BWP的标识。其中，各项信息的作用可以参见实施例一中的描述，不再赘述。
接入网设备向终端设备发送上述信息(比如至少两个TCI状态的标识、服务小区的标识和第一控制资源集合的标识)的方式可以有多种，比如可以通过第三MAC CE向终端设备发送上述信息。参见图11中的(c)所示，为第三MAC CE的格式示例，第三MAC CE中可以包括第三MAC CE适用的服务小区的标识、第一控制资源集合的标识和至少两个TCI状态(比如第一TCI状态、第二TCI状态和第三TCI状态)的标识。其中，第三MAC CE中的E字段为扩展指示字段，该字段可以包括1个比特，当该比特的取值为1，表示第三MAC CE中至少还有一个TCI状态的标识；当该比特的取值为0，表示第三MAC CE中没有其它TCI状态的标识了。此外，第三MAC CE还可以包括保留比特，保留比特的取值可以为0。
此外，上述示例2或示例3中所涉及的TCI状态和搜索空间的对应关系，可以为接入网设备为终端设备配置的，比如接入网设备向终端设备发送第二配置信息，第二配置信息用于配置TCI状态和搜索空间的对应关系，其中，TCI状态和搜索空间的对应关系中可以包括第一TCI状态和第一搜索空间的对应关系。或者，TCI状态和搜索空间的对应关系也可以为协议预先定义的，具体不做限定。
二、针对接入网设备激活TCI状态的方式进行描述。
针对于上述示例1、示例2和示例3，在一种可能的实现方式中，比如上述示例1和示例2中，接入网设备可以向终端设备发送第一TCI状态的标识来隐式指示激活第一TCI状态，又比如上述示例3中，接入网设备可以向终端设备发送至少两个TCI状态的标识来隐式指示激活至少两个TCI状态。
在又一种可能的实现方式中，比如上述示例1和示例2中，接入网设备可以先通过MAC CE为终端设备激活第一控制资源集合对应的一或多个TCI状态，然后通过DCI向终端设备发送第一TCI状态的标识，第一TCI状态属于激活的一个或多个TCI状态；又比如上述示例3中，接入网设备可以先通过MAC CE为终端设备激活第一控制资源集合对应的多个TCI状态，然后通过DCI向终端设备发送至少TCI状态的标识，至少两个TCI状态可以属于激活的多个TCI状态。
示例性地，接入网设备通过MAC CE激活TCI状态的方式可以有多种，比如接入网设备可以通过一个MAC CE激活一个控制资源集合(比如控制资源集合1)对应的一个或多个TCI状态；举个例子，参见图12中的(a)所示，该MAC CE可以包括服务小区的标识、控制资源集合1的标识、TCI状态1的标识、TCI状态2的标识，即接入网设备通过该MAC CE激活控制资源集合1对应的TCI状态1和TCI状态2。或者，接入网设备也可以通过 一个MAC CE激活多个控制资源集合(比如控制资源集合1、控制资源集合2、控制资源集合3)分别对应的一个或多个TCI状态；举个例子，参见图12中的(b)所示，该MAC CE可以包括服务小区的标识、控制资源集合1的标识、控制资源集合1对应的TCI状态1的标识、控制资源集合2的标识、控制资源集合2对应的TCI状态2的标识、控制资源集合3的标识、控制资源集合3对应的TCI状态3的标识，即接入网设备通过该MAC CE激活控制资源集合1对应的TCI状态1、控制资源集合2对应的TCI状态2以及控制资源集合3对应的TCI状态3；再举个例子，参见图12中的(c)所示，该MAC CE可以包括服务小区的标识、控制资源集合1的标识、控制资源集合1对应的TCI状态1的标识和TCI状态2的标识、控制资源集合2的标识、控制资源集合2对应的TCI状态3的标识和TCI状态4的标识，即接入网设备通过该MAC CE激活控制资源集合1对应的TCI状态1和TCI状态2以及控制资源集合2对应的TCI状态3和TCI状态4。
本申请实施例中，考虑到在引入BWP后，接入网设备为终端设备配置TCI状态的一种可能的实现为：接入网设备向终端设备发送服务小区的配置(Servingcell config)，服务小区的配置中包括BWP的配置(BWP config)，BWP的配置中包括控制资源结合的配置(CORESET config)，控制资源集合可以配置有一个或多个TCI状态的标识或一个或多个TCI状态组合的标识，每个TCI状态组合中可以包括一个或多个TCI状态。因此，接入网设备在为终端设备激活TCI状态时，向终端设备发送的MAC CE中还可以包括BWP的标识。
举个例子，参见图13中的(a)所示，该MAC CE可以包括服务小区的标识、BWP1的标识、控制资源集合1的标识、TCI状态1的标识、控制资源集合2的标识、TCI状态2的标识，即接入网设备通过该MAC CE激活BWP1上配置的控制资源集合1对应的TCI状态1以及BWP1上配置的控制资源集合2对应的TCI状态2。
参见图13中的(b)所示，该MAC CE可以包括服务小区的标识、BWP1的标识、控制资源集合1的标识、控制资源集合1对应的TCI状态个数(比如个数为3)、TCI状态1的标识、TCI状态2的标识、TCI状态3的标识，即接入网设备通过该MAC CE激活BWP1上配置的控制资源集合1对应的3个TCI状态，分别为TCI状态1、TCI状态2、TCI状态3；
参见图13中的(c)所示，该MAC CE可以包括服务小区的标识、BWP1的标识、控制资源集合1的标识、比特位图，比特位图中的每一个比特可以对应一个TCI状态，针对于某个比特，当该比特的取值为1时，表示激活该比特对应TCI状态，当该比特的取值为0时，表示不激活该比特对应TCI状态。本申请实施例中对比特位图所包括的比特个数以及比特位图中的比特与TCI状态的具体对应方式不做限定。
此外，需要说明的是，在其它可能的示例中，上述图13的(a)或(b)中，TCI状态的标识也可以替换为TCI状态组合的标识。上述图13的(c)中，比特位图中的每个比特也可以对应一个TCI状态组合。
三、针对终端设备在目标监听时机上进行监听的启动时间和结束时间进行描述。
示例性地，终端设备确定在目标监听时机上进行监听的启动时间的方式可以有多种，比如，接入网设备可以向终端设备指示启动时间。
在一个示例中，接入网设备可以向终端设备发送第三指示信息，相应地，终端设备可以接收第三指示信息，第三指示信息用于指示启动时间，进而终端设备可以根据第三指示 信息确定启动时间。在又一个示例中，接入网设备可以通过向终端设备发送第一指示信息来隐式指示启动时间。比如，终端设备可以接收第一指示信息，并确定接收第一指示信息的结束时刻为启动时间。在又一个示例中，接入网设备可以向终端设备指示启动时间与第一搜索空间的起始时刻相同。
需要说明的是：在其它可能的示例中，也可以由协议预先定义启动时间。
可以理解地，在其它可能的示例中，接入网设备也可以向终端设备指示起始监听时机(该监听时机为第一搜索空间和第一控制资源集合对应的监听时机)，比如接入网设备向终端设备发送起始监听时机的标识，进而终端设备可以确定出起始监听时机，此种情形下，启动时间可以为起始监听时机的起始边界。
本申请实施例中，终端设备确定在目标监听时机上进行监听的结束时间的方式可以参照实施例一，不再赘述。
采用上述方法，接入网设备可以为终端设备配置至少两个搜索空间和至少一个控制资源集合，该至少两个搜索空间和其关联的控制资源集合对应第一控制信息的多个监听时机；进而接入网设备可以指示终端设备在其中一个搜索空间和其关联的控制资源集合对应的监听时机(即目标监听时机)上进行监听，从而能够有效减少终端设备不必要的监听，降低终端设备的功耗。
针对上述实施例一和实施例二，需要说明的是：
(1)实施例一和实施例二可以分别单独实施，比如对于实施例一和实施例二来说，第一指示信息用于指示第一控制信息的目标监听时机，但在实施例一中的第一指示信息所包括的内容和在实施例二中的第一指示信息所包括的内容可以是不相同的。
(2)上述实施例一和实施例二侧重描述了二者的差异之处，除差异之处的其它内容，实施例一和实施例二之间可以相互参照。
(3)上述实施例所描述的各个流程图的步骤编号仅为执行流程的一种示例，并不构成对步骤执行的先后顺序的限制，本申请实施例中相互之间没有时序依赖关系的步骤之间没有严格的执行顺序。此外，各个流程图中所示意的步骤并非全部是必须执行的步骤，可以根据实际需要在各个流程图的基础上增添或者删除部分步骤。
上述主要从设备交互的角度对本申请实施例提供的方案进行了介绍。可以理解的是，为了实现上述功能，接入网设备或终端设备可以包括执行各个功能相应的硬件结构和/或软件模块。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，本申请的实施例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或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。
在采用集成的单元的情况下，图14示出了本申请实施例中所涉及的装置的可能的示 例性框图。如图14所示，装置1400可以包括：处理单元1402和通信单元1403。处理单元1402用于对装置1400的动作进行控制管理。通信单元1403用于支持装置1400与其他设备的通信。可选地，通信单元1403也称为收发单元，可以包括接收单元和/或发送单元，分别用于执行接收和发送操作。可选的，装置1400还可以包括存储单元1401，用于存储装置1400的程序代码和/或数据。
该装置1400可以为上述实施例中的终端设备、或者还可以为设置在终端设备中的芯片。处理单元1402可以支持装置1400执行上文中各方法示例中终端设备的动作。或者，处理单元1402主要执行方法示例中的终端设备的内部动作，通信单元1403可以支持装置1400与其它设备之间的通信。
具体地，在一个实施例中，通信单元1403用于：接收第一指示信息，第一指示信息用于指示第一控制信息的目标监听时机；在目标监听时机上监听第一控制信息，第一控制信息用于调度多播业务的信息；其中，目标监听时机包括第一控制信息的多个监听时机中的至少一个监听时机。
在一种可能的设计中，通信单元1403还用于：接收配置信息，所述配置信息用于配置所述多播业务的第一搜索空间和所述多播业务的至少一个控制资源集合，所述至少一个控制资源集合包括第一控制资源集合；其中，第一搜索空间关联第一控制资源集合，第一搜索空间和第一控制资源集合对应所述多个监听时机。
在一种可能的设计中，所述至少一个控制资源集合还包括第二控制资源集合；通信单元1403还用于：接收第二指示信息，第二指示信息用于指示第一搜索空间关联的第二控制资源集合切换为第一控制资源集合。
在一种可能的设计中，第一指示信息包括以下至少一项：(1)监听周期信息，所述监听周期信息用于指示监听第一控制信息的周期；(2)偏移量信息，所述偏移量信息用于指示目标监听时机在所述周期中的偏移量；(3)监听时长信息，所述监听时长信息用于指示在所述周期内监听第一控制信息的时长。
在一种可能的设计中，所述监听周期信息包括以下至少一项：所述周期包括的无线帧的个数、所述周期包括的无线子帧的个数、所述周期包括的时隙的个数、所述周期包括的符号的个数、所述周期包括的监听时机的个数；所述偏移量信息包括以下至少一项：所述偏移量包括的无线帧的个数、所述偏移量包括的无线子帧的个数、所述偏移量包括的时隙的个数、所述偏移量包括的符号的个数、所述偏移量包括的监听时机的个数；所述监听时长信息包括以下至少一项：所述时长包括的无线帧的个数、所述时长包括的无线子帧的个数、所述时长包括的时隙的个数、所述时长包括的符号的个数、所述时长包括的监听时机的个数；其中，所述时长包括的监听时机为目标监听时机。
在一种可能的设计中，所述周期的起始时刻是根据接收到的第三指示信息确定的；或者，所述周期的起始时刻为接收第一指示信息的结束时刻。
在一种可能的设计中，第三指示信息包括以下至少一项：无线帧的标识、无线子帧的标识、时隙的标识、符号的标识。
在一种可能的设计中，所述周期包括的起始监听时机为所述多个监听时机中位于所述起始时刻之后的第一个监听时机；或者，所述起始监听时机为所述多个监听时机中距离所述起始时刻最近的监听时机。
在一种可能的设计中，通信单元1403还用于：接收第四指示信息，第四指示信息包 括以下至少一项：第一TCI状态的标识、第一搜索空间对应的小区的标识、第一搜索空间对应的BWP的标识；第一TCI状态的标识用于确定监听第一控制信息的波束。
在一种可能的设计中，通信单元1403还用于：接收第一配置信息，第一配置信息用于配置所述多播业务的至少两个搜索空间和所述多播业务的至少一个控制资源集合，所述至少一个控制资源集合包括第一控制资源集合；所述至少两个搜索空间关联第一控制资源集合，所述至少两个搜索空间和第一控制资源集合对应所述多个监听时机。
在一种可能的设计中，第一指示信息包括所述至少两个搜索空间中第一搜索空间的标识；第一搜索空间和第一控制资源集合对应目标监听时机。
在一种可能的设计中，第一指示信息包括至少一个TCI状态的标识；处理单元1402用于：从所述至少一个TCI状态中选择第一TCI状态；根据TCI状态与搜索空间的对应关系，确定第一TCI状态对应第一搜索空间；以及，确定第一搜索空间和第一控制资源集合对应的监听时机为目标监听时机。
在一种可能的设计中，处理单元1402具体用于：确定用于监听第二控制信息的TCI状态，第二控制信息用于调度单播业务的信息；根据用于监听第二控制信息的TCI状态，从所述至少一个TCI状态中选择第一TCI状态，第一TCI状态与用于监听第二控制信息的TCI状态相同；或者，确定所述至少一个TCI状态对应的波束质量；根据所述至少一个TCI状态对应的波束质量，从所述至少一个TCI状态中选择第一TCI状态，第一TCI状态对应的波束质量大于或等于所述至少一个TCI状态中其它TCI状态对应的波束质量。
该装置1400可以为上述实施例中的接入网设备、或者还可以为设置在接入网设备中的芯片。处理单元1402可以支持装置1400执行上文中各方法示例中接入网设备的动作。或者，处理单元1402主要执行方法示例中的接入网设备的内部动作，通信单元1403可以支持装置1400与其它设备之间的通信。
具体地，在一个实施例中，处理单元1402用于：确定第一指示信息，第一指示信息用于指示第一控制信息的目标监听时机，第一控制信息用于调度多播业务的信息；通信单元1403用于：向终端设备发送第一指示信息；其中，目标监听时机包括第一控制信息的多个监听时机中的至少一个监听时机。
在一种可能的设计中，通信单元1403还用于：向所述终端设备发送配置信息，所述配置信息用于配置所述多播业务的第一搜索空间和所述多播业务的至少一个控制资源集合，所述至少一个控制资源集合包括第一控制资源集合；其中，第一搜索空间关联第一控制资源集合，第一搜索空间和第一控制资源集合对应所述多个监听时机。
在一种可能的设计中，所述至少一个控制资源集合还包括第二控制资源集合；通信单元1403还用于：向所述终端设备发送第二指示信息，第二指示信息用于指示第一搜索空间关联的第二控制资源集合切换为第一控制资源集合。
在一种可能的设计中，第一指示信息包括以下至少一项：(1)监听周期信息，所述监听周期信息用于指示监听第一控制信息的周期；(2)偏移量信息，所述偏移量信息用于指示目标监听时机在所述周期中的偏移量；(3)监听时长信息，所述监听时长信息用于指示在所述周期内监听第一控制信息的时长。
在一种可能的设计中，所述监听周期信息包括以下至少一项：所述周期包括的无线帧的个数、所述周期包括的无线子帧的个数、所述周期包括的时隙的个数、所述周期包括的符号的个数、所述周期包括的监听时机的个数；所述偏移量信息包括以下至少一项：所述 偏移量包括的无线帧的个数、所述偏移量包括的无线子帧的个数、所述偏移量包括的时隙的个数、所述偏移量包括的符号的个数、所述偏移量包括的监听时机的个数；所述监听时长信息包括以下至少一项：所述时长包括的无线帧的个数、所述时长包括的无线子帧的个数、所述时长包括的时隙的个数、所述时长包括的符号的个数、所述时长包括的监听时机的个数；其中，所述时长包括的监听时机为目标监听时机。
在一种可能的设计中，通信单元1403还用于：向所述终端设备发送第三指示信息，第三指示信息用于指示所述周期的起始时刻。
在一种可能的设计中，第三指示信息包括以下至少一项：无线帧的标识、无线子帧的标识、时隙的标识、符号的标识。
在一种可能的设计中，所述周期包括的起始监听时机为所述多个监听时机中位于所述起始时刻之后的第一个监听时机；或者，所述起始监听时机为所述多个监听时机中距离所述起始时刻最近的监听时机。
在一种可能的设计中，通信单元1403还用于：向所述终端设备发送第四指示信息，第四指示信息包括以下至少一项：第一传输配置指示TCI状态的标识、第一搜索空间对应的小区的标识、第一搜索空间对应的BWP的标识；第一TCI状态的标识用于所述终端设备确定监听第一控制信息的波束。
在一种可能的设计中，通信单元1403还用于：向所述终端设备发送第一配置信息，第一配置信息用于配置所述多播业务的至少两个搜索空间和所述多播业务的至少一个控制资源集合，所述至少一个控制资源集合包括第一控制资源集合；所述至少两个搜索空间关联第一控制资源集合，所述至少两个搜索空间和第一控制资源集合对应所述多个监听时机。
在一种可能的设计中，第一指示信息包括所述至少两个搜索空间中第一搜索空间的标识；第一搜索空间和第一控制资源集合对应目标监听时机。
在一种可能的设计中，第一指示信息包括至少一个TCI状态的标识；所述至少一个TCI状态中包括第一TCI状态，第一TCI状态对应第一搜索空间，第一搜索空间和第一控制资源集合对应目标监听时机。
应理解以上装置中单元的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。且装置中的单元可以全部以软件通过处理元件调用的形式实现；也可以全部以硬件的形式实现；还可以部分单元以软件通过处理元件调用的形式实现，部分单元以硬件的形式实现。例如，各个单元可以为单独设立的处理元件，也可以集成在装置的某一个芯片中实现，此外，也可以以程序的形式存储于存储器中，由装置的某一个处理元件调用并执行该单元的功能。此外这些单元全部或部分可以集成在一起，也可以独立实现。这里所述的处理元件又可以成为处理器，可以是一种具有信号的处理能力的集成电路。在实现过程中，上述方法的各操作或以上各个单元可以通过处理器元件中的硬件的集成逻辑电路实现或者以软件通过处理元件调用的形式实现。
在一个例子中，以上任一装置中的单元可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个特定集成电路(application specific integrated circuit，ASIC)，或，一个或多个微处理器(digital singnal processor，DSP)，或，一个或者多个现场可编程门阵列(field programmable gate array，FPGA)，或这些集成电路形式中至少两种的组合。再如，当装置中的单元可以通过处理元件调度程序的形式实现时，该处理元件可以是处理 器，比如通用中央处理器(central processing unit，CPU)，或其它可以调用程序的处理器。再如，这些单元可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现。
以上用于接收的单元是一种该装置的接口电路，用于从其它装置接收信号。例如，当该装置以芯片的方式实现时，该接收单元是该芯片用于从其它芯片或装置接收信号的接口电路。以上用于发送的单元是一种该装置的接口电路，用于向其它装置发送信号。例如，当该装置以芯片的方式实现时，该发送单元是该芯片用于向其它芯片或装置发送信号的接口电路。
图15为本申请实施例提供的一种终端设备的结构示意图，其可以为以上实施例中的终端设备，用于实现以上实施例中终端设备的操作。如图15所示，该终端设备包括：天线1510、射频部分1520、信号处理部分1530。天线1510与射频部分1520连接。在下行方向上，射频部分1520通过天线1510接收网络设备发送的信息，将网络设备发送的信息发送给信号处理部分1530进行处理。在上行方向上，信号处理部分1530对终端设备的信息进行处理，并发送给射频部分1520，射频部分1520对终端设备的信息进行处理后经过天线1510发送给网络设备。
信号处理部分1530可以包括调制解调子系统，用于实现对数据各通信协议层的处理；还可以包括中央处理子系统，用于实现对终端设备操作系统以及应用层的处理；此外，还可以包括其它子系统，例如多媒体子系统，周边子系统等，其中多媒体子系统用于实现对终端设备相机，屏幕显示等的控制，周边子系统用于实现与其它设备的连接。调制解调子系统可以为单独设置的芯片。
调制解调子系统可以包括一个或多个处理元件1531，例如，包括一个主控CPU和其它集成电路。此外，该调制解调子系统还可以包括存储元件1532和接口电路1533。存储元件1532用于存储数据和程序，但用于执行以上方法中终端设备所执行的方法的程序可能不存储于该存储元件1532中，而是存储于调制解调子系统之外的存储器中，使用时调制解调子系统加载使用。接口电路1533用于与其它子系统通信。
该调制解调子系统可以通过芯片实现，该芯片包括至少一个处理元件和接口电路，其中处理元件用于执行以上终端设备执行的任一种方法的各个步骤，接口电路用于与其它装置通信。在一种实现中，终端设备实现以上方法中各个步骤的单元可以通过处理元件调度程序的形式实现，例如用于终端设备的装置包括处理元件和存储元件，处理元件调用存储元件存储的程序，以执行以上方法实施例中终端设备执行的方法。存储元件可以为与处理元件处于同一芯片上的存储元件，即片内存储元件。
在另一种实现中，用于执行以上方法中终端设备所执行的方法的程序可以在与处理元件处于不同芯片上的存储元件，即片外存储元件。此时，处理元件从片外存储元件调用或加载程序于片内存储元件上，以调用并执行以上方法实施例中终端设备执行的方法。
在又一种实现中，终端设备实现以上方法中各个步骤的单元可以是被配置成一个或多个处理元件，这些处理元件设置于调制解调子系统上，这里的处理元件可以为集成电路，例如：一个或多个ASIC，或，一个或多个DSP，或，一个或者多个FPGA，或者这些类集成电路的组合。这些集成电路可以集成在一起，构成芯片。
终端设备实现以上方法中各个步骤的单元可以集成在一起，以SOC的形式实现，该SOC芯片，用于实现以上方法。该芯片内可以集成至少一个处理元件和存储元件，由处理 元件调用存储元件的存储的程序的形式实现以上终端设备执行的方法；或者，该芯片内可以集成至少一个集成电路，用于实现以上终端设备执行的方法；或者，可以结合以上实现方式，部分单元的功能通过处理元件调用程序的形式实现，部分单元的功能通过集成电路的形式实现。
可见，以上用于终端设备的装置可以包括至少一个处理元件和接口电路，其中至少一个处理元件用于执行以上方法实施例所提供的任一种终端设备执行的方法。处理元件可以以第一种方式：即调用存储元件存储的程序的方式执行终端设备执行的部分或全部步骤；也可以以第二种方式：即通过处理器元件中的硬件的集成逻辑电路结合指令的方式执行终端设备执行的部分或全部步骤；当然，也可以结合第一种方式和第二种方式执行终端设备执行的部分或全部步骤。
这里的处理元件同以上描述，可以通过处理器实现，处理元件的功能可以和图14中所描述的处理单元的功能相同。示例性地，处理元件可以是通用处理器，例如CPU，还可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个ASIC，或，一个或多个微处理器DSP，或，一个或者多个FPGA等，或这些集成电路形式中至少两种的组合。存储元件可以通过存储器实现，存储元件的功能可以和图14中所描述的存储单元的功能相同。存储元件可以通过存储器实现，存储元件的功能可以和图14中所描述的存储单元的功能相同。存储元件可以是一个存储器，也可以是多个存储器的统称。
图15所示的终端设备能够实现上述方法实施例中涉及终端设备的各个过程。图15所示的终端设备中的各个模块的操作和/或功能，分别为了实现上述方法实施例中的相应流程。具体可参见上述方法实施例中的描述，为避免重复，此处适当省略详述描述。
参见图16，为本申请实施例提供的一种接入网设备的结构示意图，该接入网设备(或基站)可应用于如图1所示的系统架构中，执行上述方法实施例中接入网设备的功能。接入网设备160可包括一个或多个DU 1601和一个或多个CU 1602。所述DU 1601可以包括至少一个天线16011，至少一个射频单元16012，至少一个处理器16013和至少一个存储器16014。所述DU 1601部分主要用于射频信号的收发以及射频信号与基带信号的转换，以及部分基带处理。CU1602可以包括至少一个处理器16022和至少一个存储器16021。
所述CU 1602部分主要用于进行基带处理，对接入网设备进行控制等。所述DU 1601与CU 1602可以是物理上设置在一起，也可以物理上分离设置的，即分布式基站。所述CU 1602为接入网设备的控制中心，也可以称为处理单元，主要用于完成基带处理功能。例如所述CU 1602可以用于控制接入网设备执行上述方法实施例中关于接入网设备的操作流程。
此外，可选的，接入网设备160可以包括一个或多个射频单元，一个或多个DU和一个或多个CU。其中，DU可以包括至少一个处理器16013和至少一个存储器16014，射频单元可以包括至少一个天线16011和至少一个射频单元16012，CU可以包括至少一个处理器16022和至少一个存储器16021。
在一个实例中，所述CU1602可以由一个或多个单板构成，多个单板可以共同支持单一接入指示的无线接入网(如5G网)，也可以分别支持不同接入制式的无线接入网(如LTE网，5G网或其他网)。所述存储器16021和处理器16022可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储 器和处理器。此外每个单板上还可以设置有必要的电路。所述DU1601可以由一个或多个单板构成，多个单板可以共同支持单一接入指示的无线接入网(如5G网)，也可以分别支持不同接入制式的无线接入网(如LTE网，5G网或其他网)。所述存储器16014和处理器16013可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。
图16所示的接入网设备能够实现上述方法实施例中涉及接入网设备的各个过程。图16所示的接入网设备中的各个模块的操作和/或功能，分别为了实现上述方法实施例中的相应流程。具体可参见上述方法实施例中的描述，为避免重复，此处适当省略详述描述。
本申请实施例中的术语“系统”和“网络”可被互换使用。“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，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的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如“A，B和C中的至少一个”包括A，B，C，AB，AC，BC或ABC。以及，除非有特别说明，本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的顺序、时序、优先级或者重要程度。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。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。

Claims (54)

  1. 一种通信方法，其特征在于，所述方法适用于终端设备，所述方法包括：
    接收第一指示信息，所述第一指示信息用于指示第一控制信息的目标监听时机；
    在所述目标监听时机上监听所述第一控制信息，所述第一控制信息用于调度多播业务的信息；
    其中，所述目标监听时机包括所述第一控制信息的多个监听时机中的至少一个监听时机。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    接收配置信息，所述配置信息用于配置所述多播业务的第一搜索空间和所述多播业务的至少一个控制资源集合，所述至少一个控制资源集合包括第一控制资源集合；
    其中，所述第一搜索空间关联所述第一控制资源集合，所述第一搜索空间和所述第一控制资源集合对应所述多个监听时机。
  3. 根据权利要求2所述的方法，其特征在于，所述至少一个控制资源集合还包括第二控制资源集合；
    所述方法还包括：
    接收第二指示信息，所述第二指示信息用于指示所述第一搜索空间关联的第二控制资源集合切换为所述第一控制资源集合。
  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括以下至少一项：
    监听周期信息，所述监听周期信息用于指示监听所述第一控制信息的周期；
    偏移量信息，所述偏移量信息用于指示所述目标监听时机在所述周期中的偏移量；
    监听时长信息，所述监听时长信息用于指示在所述周期内监听所述第一控制信息的时长。
  5. 根据权利要求4所述的方法，其特征在于，
    所述监听周期信息包括以下至少一项：
    所述周期包括的无线帧的个数、所述周期包括的无线子帧的个数、所述周期包括的时隙的个数、所述周期包括的符号的个数、所述周期包括的监听时机的个数；
    所述偏移量信息包括以下至少一项：
    所述偏移量包括的无线帧的个数、所述偏移量包括的无线子帧的个数、所述偏移量包括的时隙的个数、所述偏移量包括的符号的个数、所述偏移量包括的监听时机的个数；
    所述监听时长信息包括以下至少一项：
    所述时长包括的无线帧的个数、所述时长包括的无线子帧的个数、所述时长包括的时隙的个数、所述时长包括的符号的个数、所述时长包括的监听时机的个数；其中，所述时长包括的监听时机为所述目标监听时机。
  6. 根据权利要求4或5所述的方法，其特征在于，所述周期的起始时刻是根据接收到的第三指示信息确定的；或者，
    所述周期的起始时刻为接收所述第一指示信息的结束时刻。
  7. 根据权利要求6所述的方法，其特征在于，所述第三指示信息包括以下至少一项：
    无线帧的标识、无线子帧的标识、时隙的标识、符号的标识。
  8. 根据权利要求6或7所述的方法，其特征在于，所述周期包括的起始监听时机为所述多个监听时机中位于所述起始时刻之后的第一个监听时机；或者，
    所述起始监听时机为所述多个监听时机中距离所述起始时刻最近的监听时机。
  9. 根据权利要求2至7中任一项所述的方法，其特征在于，所述方法还包括：
    接收第四指示信息，所述第四指示信息包括以下至少一项：第一传输配置指示TCI状态的标识、所述第一搜索空间对应的小区的标识、所述第一搜索空间对应的BWP的标识；所述第一TCI状态的标识用于确定监听所述第一控制信息的波束。
  10. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    接收第一配置信息，所述第一配置信息用于配置所述多播业务的至少两个搜索空间和所述多播业务的至少一个控制资源集合，所述至少一个控制资源集合包括第一控制资源集合；
    所述至少两个搜索空间关联所述第一控制资源集合，所述至少两个搜索空间和所述第一控制资源集合对应所述多个监听时机。
  11. 根据权利要求10所述的方法，其特征在于，所述第一指示信息包括所述至少两个搜索空间中第一搜索空间的标识；
    所述第一搜索空间和所述第一控制资源集合对应所述目标监听时机。
  12. 根据权利要求10所述的方法，其特征在于，所述第一指示信息包括至少一个TCI状态的标识；
    所述方法还包括：
    从所述至少一个TCI状态中选择第一TCI状态；
    根据TCI状态与搜索空间的对应关系，确定所述第一TCI状态对应第一搜索空间；
    确定所述第一搜索空间和所述第一控制资源集合对应的监听时机为所述目标监听时机。
  13. 根据权利要求12所述的方法，其特征在于，从所述至少一个TCI状态中选择第一TCI状态，包括：
    确定用于监听第二控制信息的TCI状态，所述第二控制信息用于调度单播业务的信息；根据用于监听第二控制信息的TCI状态，从所述至少一个TCI状态中选择第一TCI状态，所述第一TCI状态与用于监听第二控制信息的TCI状态相同；或者，
    确定所述至少一个TCI状态对应的波束质量；根据所述至少一个TCI状态对应的波束质量，从所述至少一个TCI状态中选择第一TCI状态，所述第一TCI状态对应的波束质量大于或等于所述至少一个TCI状态中其它TCI状态对应的波束质量。
  14. 一种通信方法，其特征在于，所述方法适用于接入网设备，所述方法包括：
    确定第一指示信息，所述第一指示信息用于指示第一控制信息的目标监听时机，所述第一控制信息用于调度多播业务的信息；
    向终端设备发送第一指示信息；
    其中，所述目标监听时机包括所述第一控制信息的多个监听时机中的至少一个监听时机。
  15. 根据权利要求14所述的方法，其特征在于，所述方法还包括：
    向所述终端设备发送配置信息，所述配置信息用于配置所述多播业务的第一搜索空间和所述多播业务的至少一个控制资源集合，所述至少一个控制资源集合包括第一控制资源 集合；
    其中，所述第一搜索空间关联所述第一控制资源集合，所述第一搜索空间和所述第一控制资源集合对应所述多个监听时机。
  16. 根据权利要求15所述的方法，其特征在于，所述至少一个控制资源集合还包括第二控制资源集合；
    所述方法还包括：
    向所述终端设备发送第二指示信息，所述第二指示信息用于指示所述第一搜索空间关联的第二控制资源集合切换为所述第一控制资源集合。
  17. 根据权利要求15或16所述的方法，其特征在于，所述第一指示信息包括以下至少一项：
    监听周期信息，所述监听周期信息用于指示监听所述第一控制信息的周期；
    偏移量信息，所述偏移量信息用于指示所述目标监听时机在所述周期中的偏移量；
    监听时长信息，所述监听时长信息用于指示在所述周期内监听所述第一控制信息的时长。
  18. 根据权利要求17所述的方法，其特征在于，
    所述监听周期信息包括以下至少一项：
    所述周期包括的无线帧的个数、所述周期包括的无线子帧的个数、所述周期包括的时隙的个数、所述周期包括的符号的个数、所述周期包括的监听时机的个数；
    所述偏移量信息包括以下至少一项：
    所述偏移量包括的无线帧的个数、所述偏移量包括的无线子帧的个数、所述偏移量包括的时隙的个数、所述偏移量包括的符号的个数、所述偏移量包括的监听时机的个数；
    所述监听时长信息包括以下至少一项：
    所述时长包括的无线帧的个数、所述时长包括的无线子帧的个数、所述时长包括的时隙的个数、所述时长包括的符号的个数、所述时长包括的监听时机的个数；其中，所述时长包括的监听时机为所述目标监听时机。
  19. 根据权利要求17或18所述的方法，其特征在于，所述方法还包括：向所述终端设备发送第三指示信息，所述第三指示信息用于指示所述周期的起始时刻。
  20. 根据权利要求19所述的方法，其特征在于，所述第三指示信息包括以下至少一项：
    无线帧的标识、无线子帧的标识、时隙的标识、符号的标识。
  21. 根据权利要求19或20所述的方法，其特征在于，所述周期包括的起始监听时机为所述多个监听时机中位于所述起始时刻之后的第一个监听时机；或者，
    所述起始监听时机为所述多个监听时机中距离所述起始时刻最近的监听时机。
  22. 根据权利要求15至21中任一项所述的方法，其特征在于，所述方法还包括：
    向所述终端设备发送第四指示信息，所述第四指示信息包括以下至少一项：第一传输配置指示TCI状态的标识、所述第一搜索空间对应的小区的标识、所述第一搜索空间对应的BWP的标识；所述第一TCI状态的标识用于所述终端设备确定监听所述第一控制信息的波束。
  23. 根据权利要求14所述的方法，其特征在于，所述方法还包括：
    向所述终端设备发送第一配置信息，所述第一配置信息用于配置所述多播业务的至少两个搜索空间和所述多播业务的至少一个控制资源集合，所述至少一个控制资源集合包括 第一控制资源集合；
    所述至少两个搜索空间关联所述第一控制资源集合，所述至少两个搜索空间和所述第一控制资源集合对应所述多个监听时机。
  24. 根据权利要求23所述的方法，其特征在于，所述第一指示信息包括所述至少两个搜索空间中第一搜索空间的标识；
    所述第一搜索空间和所述第一控制资源集合对应所述目标监听时机。
  25. 根据权利要求23所述的方法，其特征在于，所述第一指示信息包括至少一个TCI状态的标识；
    所述至少一个TCI状态中包括第一TCI状态，所述第一TCI状态对应第一搜索空间，所述第一搜索空间和所述第一控制资源集合对应所述目标监听时机。
  26. 一种通信装置，其特征在于，包括：
    收发单元，用于接收第一指示信息，所述第一指示信息用于指示第一控制信息的目标监听时机；
    处理单元，用于在所述目标监听时机上监听所述第一控制信息，所述第一控制信息用于调度多播业务的信息；
    其中，所述目标监听时机包括所述第一控制信息的多个监听时机中的至少一个监听时机。
  27. 根据权利要求26所述的装置，其特征在于，所述收发单元还用于：
    接收配置信息，所述配置信息用于配置所述多播业务的第一搜索空间和所述多播业务的至少一个控制资源集合，所述至少一个控制资源集合包括第一控制资源集合；
    其中，所述第一搜索空间关联所述第一控制资源集合，所述第一搜索空间和所述第一控制资源集合对应所述多个监听时机。
  28. 根据权利要求27所述的装置，其特征在于，所述至少一个控制资源集合还包括第二控制资源集合；所述收发单元还用于：
    接收第二指示信息，所述第二指示信息用于指示所述第一搜索空间关联的第二控制资源集合切换为所述第一控制资源集合。
  29. 根据权利要求27或28所述的装置，其特征在于，所述第一指示信息包括以下至少一项：
    监听周期信息，所述监听周期信息用于指示监听所述第一控制信息的周期；
    偏移量信息，所述偏移量信息用于指示所述目标监听时机在所述周期中的偏移量；
    监听时长信息，所述监听时长信息用于指示在所述周期内监听所述第一控制信息的时长。
  30. 根据权利要求29所述的装置，其特征在于，
    所述监听周期信息包括以下至少一项：
    所述周期包括的无线帧的个数、所述周期包括的无线子帧的个数、所述周期包括的时隙的个数、所述周期包括的符号的个数、所述周期包括的监听时机的个数；
    所述偏移量信息包括以下至少一项：
    所述偏移量包括的无线帧的个数、所述偏移量包括的无线子帧的个数、所述偏移量包括的时隙的个数、所述偏移量包括的符号的个数、所述偏移量包括的监听时机的个数；
    所述监听时长信息包括以下至少一项：
    所述时长包括的无线帧的个数、所述时长包括的无线子帧的个数、所述时长包括的时隙的个数、所述时长包括的符号的个数、所述时长包括的监听时机的个数；其中，所述时长包括的监听时机为所述目标监听时机。
  31. 根据权利要求29或30所述的装置，其特征在于，所述周期的起始时刻是根据接收到的第三指示信息确定的；或者，
    所述周期的起始时刻为接收所述第一指示信息的结束时刻。
  32. 根据权利要求31所述的装置，其特征在于，所述第三指示信息包括以下至少一项：无线帧的标识、无线子帧的标识、时隙的标识、符号的标识。
  33. 根据权利要求31或32所述的装置，其特征在于，所述周期包括的起始监听时机为所述多个监听时机中位于所述起始时刻之后的第一个监听时机；或者，
    所述起始监听时机为所述多个监听时机中距离所述起始时刻最近的监听时机。
  34. 根据权利要求27至32中任一项所述的装置，其特征在于，所述收发单元还用于：
    接收第四指示信息，所述第四指示信息包括以下至少一项：第一传输配置指示TCI状态的标识、所述第一搜索空间对应的小区的标识、所述第一搜索空间对应的BWP的标识；所述第一TCI状态的标识用于确定监听所述第一控制信息的波束。
  35. 根据权利要求26所述的装置，其特征在于，所述收发单元还用于：
    接收第一配置信息，所述第一配置信息用于配置所述多播业务的至少两个搜索空间和所述多播业务的至少一个控制资源集合，所述至少一个控制资源集合包括第一控制资源集合；
    所述至少两个搜索空间关联所述第一控制资源集合，所述至少两个搜索空间和所述第一控制资源集合对应所述多个监听时机。
  36. 根据权利要求35所述的装置，其特征在于，所述第一指示信息包括所述至少两个搜索空间中第一搜索空间的标识；
    所述第一搜索空间和所述第一控制资源集合对应所述目标监听时机。
  37. 根据权利要求35所述的装置，其特征在于，所述第一指示信息包括至少一个TCI状态的标识；所述处理单元还用于：
    从所述至少一个TCI状态中选择第一TCI状态；
    根据TCI状态与搜索空间的对应关系，确定所述第一TCI状态对应第一搜索空间；
    确定所述第一搜索空间和所述第一控制资源集合对应的监听时机为所述目标监听时机。
  38. 根据权利要求37所述的装置，其特征在于，所述处理单元具体用于：
    确定用于监听第二控制信息的TCI状态，所述第二控制信息用于调度单播业务的信息；根据用于监听第二控制信息的TCI状态，从所述至少一个TCI状态中选择第一TCI状态，所述第一TCI状态与用于监听第二控制信息的TCI状态相同；或者，
    确定所述至少一个TCI状态对应的波束质量；根据所述至少一个TCI状态对应的波束质量，从所述至少一个TCI状态中选择第一TCI状态，所述第一TCI状态对应的波束质量大于或等于所述至少一个TCI状态中其它TCI状态对应的波束质量。
  39. 一种通信装置，其特征在于，包括：
    处理单元，用于确定第一指示信息，所述第一指示信息用于指示第一控制信息的目标监听时机，所述第一控制信息用于调度多播业务的信息；
    收发单元，用于向终端设备发送第一指示信息；
    其中，所述目标监听时机包括所述第一控制信息的多个监听时机中的至少一个监听时机。
  40. 根据权利要求39所述的装置，其特征在于，所述收发单元还用于：
    向所述终端设备发送配置信息，所述配置信息用于配置所述多播业务的第一搜索空间和所述多播业务的至少一个控制资源集合，所述至少一个控制资源集合包括第一控制资源集合；
    其中，所述第一搜索空间关联所述第一控制资源集合，所述第一搜索空间和所述第一控制资源集合对应所述多个监听时机。
  41. 根据权利要求40所述的装置，其特征在于，所述至少一个控制资源集合还包括第二控制资源集合；所述收发单元还用于：
    向所述终端设备发送第二指示信息，所述第二指示信息用于指示所述第一搜索空间关联的第二控制资源集合切换为所述第一控制资源集合。
  42. 根据权利要求40或41所述的装置，其特征在于，所述第一指示信息包括以下至少一项：
    监听周期信息，所述监听周期信息用于指示监听所述第一控制信息的周期；
    偏移量信息，所述偏移量信息用于指示所述目标监听时机在所述周期中的偏移量；
    监听时长信息，所述监听时长信息用于指示在所述周期内监听所述第一控制信息的时长。
  43. 根据权利要求42所述的装置，其特征在于，
    所述监听周期信息包括以下至少一项：
    所述周期包括的无线帧的个数、所述周期包括的无线子帧的个数、所述周期包括的时隙的个数、所述周期包括的符号的个数、所述周期包括的监听时机的个数；
    所述偏移量信息包括以下至少一项：
    所述偏移量包括的无线帧的个数、所述偏移量包括的无线子帧的个数、所述偏移量包括的时隙的个数、所述偏移量包括的符号的个数、所述偏移量包括的监听时机的个数；
    所述监听时长信息包括以下至少一项：
    所述时长包括的无线帧的个数、所述时长包括的无线子帧的个数、所述时长包括的时隙的个数、所述时长包括的符号的个数、所述时长包括的监听时机的个数；其中，所述时长包括的监听时机为所述目标监听时机。
  44. 根据权利要求42或43所述的装置，其特征在于，所述收发单元还用于：
    向所述终端设备发送第三指示信息，所述第三指示信息用于指示所述周期的起始时刻。
  45. 根据权利要求44所述的装置，其特征在于，所述第三指示信息包括以下至少一项：无线帧的标识、无线子帧的标识、时隙的标识、符号的标识。
  46. 根据权利要求44或45所述的装置，其特征在于，所述周期包括的起始监听时机为所述多个监听时机中位于所述起始时刻之后的第一个监听时机；或者，
    所述起始监听时机为所述多个监听时机中距离所述起始时刻最近的监听时机。
  47. 根据权利要求40至46中任一项所述的装置，其特征在于，所述收发单元还用于：
    向所述终端设备发送第四指示信息，所述第四指示信息包括以下至少一项：第一传输配置指示TCI状态的标识、所述第一搜索空间对应的小区的标识、所述第一搜索空间对应 的BWP的标识；所述第一TCI状态的标识用于所述终端设备确定监听所述第一控制信息的波束。
  48. 根据权利要求39所述的装置，其特征在于，所述收发单元还用于：
    向所述终端设备发送第一配置信息，所述第一配置信息用于配置所述多播业务的至少两个搜索空间和所述多播业务的至少一个控制资源集合，所述至少一个控制资源集合包括第一控制资源集合；
    所述至少两个搜索空间关联所述第一控制资源集合，所述至少两个搜索空间和所述第一控制资源集合对应所述多个监听时机。
  49. 根据权利要求48所述的装置，其特征在于，所述第一指示信息包括所述至少两个搜索空间中第一搜索空间的标识；
    所述第一搜索空间和所述第一控制资源集合对应所述目标监听时机。
  50. 根据权利要求48所述的装置，其特征在于，所述第一指示信息包括至少一个TCI状态的标识；
    所述至少一个TCI状态中包括第一TCI状态，所述第一TCI状态对应第一搜索空间，所述第一搜索空间和所述第一控制资源集合对应所述目标监听时机。
  51. 一种通信装置，其特征在于，包括处理器，所述处理器和存储器耦合，所述存储器中存储有计算机程序；所述处理器用于调用所述存储器中的计算机程序，使得所述通信装置执行如权利要求1至13任一所述的方法。
  52. 一种通信装置，其特征在于，包括处理器，所述处理器和存储器耦合，所述存储器中存储有计算机程序；所述处理器用于调用所述存储器中的计算机程序，使得所述通信装置执行如权利要求14至25任一所述的方法。
  53. 一种计算机可读存储介质，其特征在于，所述存储介质中存储有计算机程序或指令，当所述计算机程序或指令被通信装置执行时，实现如权利要求1至13中任一项所述的方法。
  54. 一种计算机可读存储介质，其特征在于，所述存储介质中存储有计算机程序或指令，当所述计算机程序或指令被通信装置执行时，实现如权利要求14至25中任一项所述的方法。
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