WO2023044804A1 - 载波切换方法及装置 - Google Patents

载波切换方法及装置 Download PDF

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Publication number
WO2023044804A1
WO2023044804A1 PCT/CN2021/120459 CN2021120459W WO2023044804A1 WO 2023044804 A1 WO2023044804 A1 WO 2023044804A1 CN 2021120459 W CN2021120459 W CN 2021120459W WO 2023044804 A1 WO2023044804 A1 WO 2023044804A1
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Prior art keywords
carrier
indication
pri
control channel
candidate
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PCT/CN2021/120459
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English (en)
French (fr)
Inventor
延凯悦
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北京小米移动软件有限公司
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Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2021/120459 priority Critical patent/WO2023044804A1/zh
Priority to CN202180002899.9A priority patent/CN116171615A/zh
Publication of WO2023044804A1 publication Critical patent/WO2023044804A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management

Definitions

  • the present application relates to the technical field of communications, and in particular to a carrier switching method and device.
  • the embodiment of the first aspect of the present application proposes a carrier switching method, the method is executed by a terminal device, and the method includes: receiving a carrier switching instruction; determining the physical uplink control channel from candidate carriers according to the carrier switching instruction target carrier;
  • the carrier switching instruction includes at least one of the following: an additional field in the downlink control information DCI;
  • the carrier switching instruction includes: an additional field in the downlink control information DCI; wherein the additional field is at least 1 bit, used to indicate A carrier switch between two said candidate carriers.
  • the carrier switching instruction includes: multiplexing the physical uplink control channel resource indication PRI; wherein, multiplexing the physical uplink control channel resource indication PRI It is at least 1 bit, and is used to indicate carrier switching between the two candidate carriers.
  • the carrier switching instruction includes: multiplexing the hybrid automatic repeat request HARQ feedback time indication; wherein, the hybrid automatic repeat request HARQ feedback The time indication is used to implicitly indicate carrier switching between the two candidate carriers.
  • the carrier switching indication includes: multiplexing the uplink/supplementary uplink UL/SUL indication; wherein, the uplink/supplementary uplink UL/SUL indication; A supplementary uplink UL/SUL indication for indicating carrier switching between the two candidate carriers.
  • the carrier switching indication includes: multiplexing the physical uplink control channel resource indication PRI; wherein, multiplexing the physical uplink control channel resource indication PRI including first indication information and second indication information, the first indication information is used to indicate the candidate carrier subset where the target carrier is located or the carrier index of the target carrier, and the second indication information is used to indicate the Available PUCCH time-frequency resources of the target carrier.
  • the carrier switching indication includes: multiplexing the physical uplink control channel resource indication PRI; wherein, the physical uplink control channel resource indication PRI includes the first Three indication information, where the third indication information is used to indicate the target carrier and corresponding PUCCH time-frequency resources.
  • the carrier switching instruction includes: a combination of the uplink/supplementary uplink UL/SUL and the physical uplink control channel resource indication PRI indication; wherein, the uplink/supplementary uplink UL/SUL indication is used to indicate the candidate carrier subset where the target carrier is located, and the physical uplink control channel resource indication PRI is used to indicate the candidate carrier subset The target PUCCH time-frequency resource in the corresponding time-frequency resource set.
  • the carrier switching indication includes: a joint indication of the carrier indication in the downlink control information DCI and the physical uplink control channel resource indication PRI; wherein The carrier indication is used to indicate the carrier index of the target carrier, and the physical uplink control channel resource indication PRI is used to indicate the target PUCCH time-frequency resource in the time-frequency resource set corresponding to the target carrier.
  • the carrier switching indication includes: a joint indication of the hybrid automatic repeat request HARQ feedback time and the physical uplink control channel resource indication PRI; wherein , the hybrid automatic repeat request HARQ feedback time indication is used to implicitly indicate the candidate carrier subset where the target carrier is located, and the physical uplink control channel resource indication PRI is used to indicate the time-frequency corresponding to the candidate carrier subset Target PUCCH time-frequency resources in the resource set.
  • the embodiment of the second aspect of the present application proposes a carrier switching method, the method is executed by a network device, and the method includes: sending a carrier switching instruction; wherein, the carrier switching instruction is used to instruct the terminal device to determine from candidate carriers The target carrier of the physical uplink control channel;
  • the carrier switching instruction includes at least one of the following: an additional field in the downlink control information DCI; a multiplexed physical uplink control channel resource indicator PRI; a multiplexed hybrid automatic repeat request HARQ feedback time indication; a multiplexed uplink/supplementary Uplink UL/SUL indication; multiplexing the carrier indication field in the downlink control information DCI.
  • the carrier switching instruction includes: an additional field in the downlink control information DCI; wherein the additional field is at least 1 bit, used to indicate A carrier switch between two said candidate carriers.
  • the carrier switching instruction includes: multiplexing the physical uplink control channel resource indication PRI; wherein, multiplexing the physical uplink control channel resource indication PRI It is at least 1 bit, and is used to indicate carrier switching between the two candidate carriers.
  • the carrier switching instruction includes: multiplexing the hybrid automatic repeat request HARQ feedback time indication; wherein, the hybrid automatic repeat request HARQ feedback The time indication is used to implicitly indicate carrier switching between the two candidate carriers.
  • the carrier switching indication includes: multiplexing the uplink/supplementary uplink UL/SUL indication; wherein, the uplink/supplementary uplink UL/SUL indication; A supplementary uplink UL/SUL indication for indicating carrier switching between the two candidate carriers.
  • the carrier switching indication includes: multiplexing the physical uplink control channel resource indication PRI; wherein, multiplexing the physical uplink control channel resource indication PRI including first indication information and second indication information, the first indication information is used to indicate the candidate carrier subset where the target carrier is located or the carrier index of the target carrier, and the second indication information is used to indicate the Available PUCCH time-frequency resources of the target carrier.
  • the carrier switching indication includes: multiplexing the physical uplink control channel resource indication PRI; wherein, the physical uplink control channel resource indication PRI includes the first Three indication information, where the third indication information is used to indicate the target carrier and corresponding PUCCH time-frequency resources.
  • the carrier switching instruction includes: a combination of the uplink/supplementary uplink UL/SUL and the physical uplink control channel resource indication PRI indication; wherein, the uplink/supplementary uplink UL/SUL indication is used to indicate the candidate carrier subset where the target carrier is located, and the physical uplink control channel resource indication PRI is used to indicate the candidate carrier subset The target PUCCH time-frequency resource in the corresponding time-frequency resource set.
  • the carrier switching indication includes: a joint indication of the carrier indication in the downlink control information DCI and the physical uplink control channel resource indication PRI; wherein The carrier indication is used to indicate the carrier index of the target carrier, and the physical uplink control channel resource indication PRI is used to indicate the target PUCCH time-frequency resource in the time-frequency resource set corresponding to the target carrier.
  • the carrier switching indication includes: a joint indication of the hybrid automatic repeat request HARQ feedback time and the physical uplink control channel resource indication PRI; wherein , the hybrid automatic repeat request HARQ feedback time indication is used to implicitly indicate the candidate carrier subset where the target carrier is located, and the physical uplink control channel resource indication PRI is used to indicate the time-frequency corresponding to the candidate carrier subset Target PUCCH time-frequency resources in the resource set.
  • the embodiment of the third aspect of the present application proposes a carrier switching device, the device includes:
  • a transceiver unit configured to receive a carrier switching instruction; a processing unit, configured to determine a target carrier of a physical uplink control channel from candidate carriers according to the carrier switching instruction;
  • the carrier switching instruction includes at least one of the following: an additional field in the downlink control information DCI;
  • the carrier switching instruction includes: an additional field in the downlink control information DCI; wherein the additional field is at least 1 bit, used to indicate A carrier switch between two said candidate carriers.
  • the carrier switching instruction includes: multiplexing the physical uplink control channel resource indication PRI; wherein, multiplexing the physical uplink control channel resource indication PRI It is at least 1 bit, and is used to indicate carrier switching between the two candidate carriers.
  • the carrier switching instruction includes: multiplexing the hybrid automatic repeat request HARQ feedback time indication; wherein, the hybrid automatic repeat request HARQ feedback The time indication is used to implicitly indicate carrier switching between the two candidate carriers.
  • the carrier switching indication includes: multiplexing the uplink/supplementary uplink UL/SUL indication; wherein, the uplink/supplementary uplink UL/SUL indication; A supplementary uplink UL/SUL indication for indicating carrier switching between the two candidate carriers.
  • the carrier switching indication includes: multiplexing the physical uplink control channel resource indication PRI; wherein, multiplexing the physical uplink control channel resource indication PRI including first indication information and second indication information, the first indication information is used to indicate the candidate carrier subset where the target carrier is located or the carrier index of the target carrier, and the second indication information is used to indicate the Available PUCCH time-frequency resources of the target carrier.
  • the carrier switching indication includes: multiplexing the physical uplink control channel resource indication PRI; wherein, the physical uplink control channel resource indication PRI includes the first Three indication information, where the third indication information is used to indicate the target carrier and corresponding PUCCH time-frequency resources.
  • the carrier switching instruction includes: a combination of the uplink/supplementary uplink UL/SUL and the physical uplink control channel resource indication PRI indication; wherein, the uplink/supplementary uplink UL/SUL indication is used to indicate the candidate carrier subset where the target carrier is located, and the physical uplink control channel resource indication PRI is used to indicate the candidate carrier subset The target PUCCH time-frequency resource in the corresponding time-frequency resource set.
  • the carrier switching indication includes: a joint indication of the carrier indication in the downlink control information DCI and the physical uplink control channel resource indication PRI; wherein The carrier indication is used to indicate the carrier index of the target carrier, and the physical uplink control channel resource indication PRI is used to indicate the target PUCCH time-frequency resource in the time-frequency resource set corresponding to the target carrier.
  • the carrier switching indication includes: a joint indication of the hybrid automatic repeat request HARQ feedback time and the physical uplink control channel resource indication PRI; wherein , the hybrid automatic repeat request HARQ feedback time indication is used to implicitly indicate the candidate carrier subset where the target carrier is located, and the physical uplink control channel resource indication PRI is used to indicate the time-frequency corresponding to the candidate carrier subset Target PUCCH time-frequency resources in the resource set.
  • the embodiment of the fourth aspect of the present application proposes a carrier switching device, the device includes:
  • a transceiver unit configured to send a carrier switching instruction; wherein, the carrier switching instruction is used to instruct the terminal device to determine the target carrier of the physical uplink control channel from the candidate carriers;
  • the carrier switching instruction includes at least one of the following: an additional field in the downlink control information DCI; a multiplexed physical uplink control channel resource indicator PRI; a multiplexed hybrid automatic repeat request HARQ feedback time indication; a multiplexed uplink/supplementary Uplink UL/SUL indication; multiplexing the carrier indication field in the downlink control information DCI.
  • the carrier switching instruction includes: an additional field in the downlink control information DCI; wherein the additional field is at least 1 bit, used to indicate A carrier switch between two said candidate carriers.
  • the carrier switching instruction includes: multiplexing the physical uplink control channel resource indication PRI; wherein, multiplexing the physical uplink control channel resource indication PRI It is at least 1 bit, and is used to indicate carrier switching between the two candidate carriers.
  • the carrier switching instruction includes: multiplexing the hybrid automatic repeat request HARQ feedback time indication; wherein, the hybrid automatic repeat request HARQ feedback The time indication is used to implicitly indicate carrier switching between the two candidate carriers.
  • the carrier switching indication includes: multiplexing the uplink/supplementary uplink UL/SUL indication; wherein, the uplink/supplementary uplink UL/SUL indication; A supplementary uplink UL/SUL indication for indicating carrier switching between the two candidate carriers.
  • the carrier switching indication includes: multiplexing the physical uplink control channel resource indication PRI; wherein, multiplexing the physical uplink control channel resource indication PRI including first indication information and second indication information, the first indication information is used to indicate the candidate carrier subset where the target carrier is located or the carrier index of the target carrier, and the second indication information is used to indicate the Available PUCCH time-frequency resources of the target carrier.
  • the carrier switching indication includes: multiplexing the physical uplink control channel resource indication PRI; wherein, the physical uplink control channel resource indication PRI includes the first Three indication information, where the third indication information is used to indicate the target carrier and corresponding PUCCH time-frequency resources.
  • the carrier switching instruction includes: a combination of the uplink/supplementary uplink UL/SUL and the physical uplink control channel resource indication PRI indication; wherein, the uplink/supplementary uplink UL/SUL indication is used to indicate the candidate carrier subset where the target carrier is located, and the physical uplink control channel resource indication PRI is used to indicate the candidate carrier subset The target PUCCH time-frequency resource in the corresponding time-frequency resource set.
  • the carrier switching indication includes: a joint indication of the carrier indication in the downlink control information DCI and the physical uplink control channel resource indication PRI; wherein The carrier indication is used to indicate the carrier index of the target carrier, and the physical uplink control channel resource indication PRI is used to indicate the target PUCCH time-frequency resource in the time-frequency resource set corresponding to the target carrier.
  • the carrier switching indication includes: a joint indication of the hybrid automatic repeat request HARQ feedback time and the physical uplink control channel resource indication PRI; wherein , the hybrid automatic repeat request HARQ feedback time indication is used to implicitly indicate the candidate carrier subset where the target carrier is located, and the physical uplink control channel resource indication PRI is used to indicate the time-frequency corresponding to the candidate carrier subset Target PUCCH time-frequency resources in the resource set.
  • the embodiment of the fifth aspect of the present application provides a communication device, the device includes a processor and a memory, a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the The device executes the carrier switching method described in the embodiment of the first aspect above.
  • the embodiment of the sixth aspect of the present application provides a communication device, the device includes a processor and a memory, a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the The device executes the carrier switching method described in the embodiment of the second aspect above.
  • the embodiment of the seventh aspect of the present application provides a communication device, the device includes a processor and an interface circuit, the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to make the The device executes the carrier switching method described in the embodiment of the first aspect above.
  • the embodiment of the eighth aspect of the present application provides a communication device, the device includes a processor and an interface circuit, the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to make the The device executes the carrier switching method described in the embodiment of the second aspect above.
  • the embodiment of the ninth aspect of the present application provides a computer-readable storage medium for storing instructions, and when the instructions are executed, the carrier switching method described in the embodiment of the first aspect above is implemented.
  • the embodiment of the tenth aspect of the present application provides a computer-readable storage medium for storing instructions, and when the instructions are executed, the carrier switching method described in the embodiment of the second aspect above is implemented.
  • the embodiment of the eleventh aspect of the present application provides a computer program that, when running on a computer, causes the computer to execute the carrier switching method described in the embodiment of the first aspect.
  • the embodiment of the twelfth aspect of the present application provides a computer program that, when running on a computer, causes the computer to execute the carrier switching method described in the embodiment of the second aspect.
  • the target carrier of the physical uplink control channel is determined from candidate carriers according to the carrier switching instruction by receiving the carrier switching instruction, wherein the carrier switching instruction includes the following At least one of: the additional field in the downlink control information DCI, the multiplexed physical uplink control channel resource indication PRI, the multiplexed hybrid automatic repeat request HARQ feedback time indication, the multiplexed uplink/supplementary uplink UL/SUL indication,
  • the carrier indication in the downlink control information DCI is multiplexed, so that the terminal equipment can switch the carrier according to the indication, which ensures the reliability and feedback efficiency of HARQ-ACK transmission, reduces interference, and improves load balance.
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a carrier switching method provided in an embodiment of the present application
  • FIG. 3 is a schematic flowchart of a carrier switching method provided in an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a carrier switching method provided in an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a carrier switching method provided in an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a carrier switching method provided in an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of a carrier switching method provided in an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a carrier switching device provided in an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a carrier switching device provided in an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of another carrier switching device provided by an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a chip provided by an embodiment of the present disclosure.
  • first, second, and third may use terms such as first, second, and third to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the embodiments of the present application, first information may also be called second information, and similarly, second information may also be called first information.
  • first information may also be called second information
  • second information may also be called first information.
  • words "if” and "if” as used herein may be interpreted as “at” or "when” or "in response to a determination.”
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • the communication system may include, but is not limited to, a network device and a terminal device.
  • the number and form of the devices shown in Figure 1 are for example only and do not constitute a limitation to the embodiment of the application. In practical applications, two or more network equipment, two or more terminal equipment.
  • the communication system shown in FIG. 1 includes one network device 101 and one terminal device 102 as an example.
  • LTE Long Term Evolution
  • 5G new air interface system 5G new air interface system
  • other future new mobile communication systems 5G new air interface system
  • the network device 101 in the embodiment of the present application is an entity on the network side for transmitting or receiving signals.
  • the network device 101 may be an evolved base station (Evolved NodeB, eNB), a transmission point (Transmission Reception Point, TRP), a next-generation base station (Next Generation NodeB, gNB) in an NR system, or a base station in other future mobile communication systems Or an access node in a wireless fidelity (Wireless Fidelity, WiFi) system, etc.
  • Evolved NodeB, eNB evolved base station
  • TRP Transmission Reception Point
  • gNB next-generation base station
  • gNB next-generation base station
  • WiFi wireless Fidelity
  • the network device provided by the embodiment of the present application may be composed of a centralized unit (Central Unit, CU) and a distributed unit (Distributed Unit, DU), wherein the CU may also be called a control unit (Control Unit), using CU-DU
  • the structure of the network device such as the protocol layer of the base station, can be separated, and the functions of some protocol layers are placed in the centralized control of the CU, and the remaining part or all of the functions of the protocol layer are distributed in the DU, and the CU centrally controls the DU.
  • the terminal device 102 in the embodiment of the present application is an entity on the user side for receiving or transmitting signals, such as a mobile phone.
  • the terminal equipment may also be called terminal equipment (terminal), user equipment (user equipment, UE), mobile station (Mobile Station, MS), mobile terminal equipment (Mobile Terminal, MT), etc.
  • the terminal device can be a car with communication functions, a smart car, a mobile phone (Mobile Phone), a wearable device, a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, an augmented reality ( Augmented Reality, AR) terminal equipment, wireless terminal equipment in Industrial Control, wireless terminal equipment in Self-Driving, wireless terminal equipment in Remote Medical Surgery, smart grid ( Wireless terminal devices in Smart Grid, wireless terminal devices in Transportation Safety, wireless terminal devices in Smart City, wireless terminal devices in Smart Home, etc.
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the terminal device.
  • the terminal device 102 can detect and correct the received data, and send feedback information to the network device 101 according to the detection result. If the data is received correctly, the terminal device 102 sends a HARQ-ACK (Hybrid Automatic Repeat Request) to the network device 101. Acknowledgment, Hybrid Automatic Repeat Request Acknowledgment). After receiving the HARQ-ACK fed back by the terminal device 102, the network device 101 will continue to send the next set of data.
  • HARQ-ACK Hybrid Automatic Repeat Request
  • the network device 101 and the terminal device 102 support PUCCH dynamic carrier switching, that is, when the PUCCH time-frequency resource of the primary cell is not available, HARQ-ACK can be sent through the carrier on the PUCCH time-frequency resource of the secondary cell.
  • the target carrier of the physical uplink control channel is determined from candidate carriers according to the carrier switching instruction by receiving the carrier switching instruction, wherein the carrier switching instruction includes at least one of the following: downlink control information Additional fields in DCI, multiplexing physical uplink control channel resource indication PRI, multiplexing hybrid automatic repeat request HARQ feedback time indication, multiplexing uplink/supplementary uplink UL/SUL indication, multiplexing downlink control information DCI Carrier indication, so that the terminal device can switch the carrier according to the indication, which ensures the reliability and feedback efficiency of HARQ-ACK transmission, reduces interference, and improves load balance.
  • the carrier switching instruction includes at least one of the following: downlink control information Additional fields in DCI, multiplexing physical uplink control channel resource indication PRI, multiplexing hybrid automatic repeat request HARQ feedback time indication, multiplexing uplink/supplementary uplink UL/SUL indication, multiplexing downlink control information DCI Carrier indication, so that the terminal device can switch the carrier according to the indication, which ensures the reliability and feedback efficiency of HARQ
  • FIG. 2 is a schematic flowchart of a carrier switching method provided in an embodiment of the present application. It should be noted that the carrier switching method in the embodiment of the present application is performed by a terminal device. As shown in Figure 2, the method may include the following steps:
  • Step 201 receiving a carrier switching instruction.
  • the carrier switching instruction includes at least one of the following: an additional field in the downlink control information DCI, a multiplexing physical uplink control channel resource indication PRI, a multiplexing hybrid automatic repeat request HARQ feedback time indication, a multiplexing uplink/supplementary Uplink UL/SUL indication, carrier indication in multiplexed downlink control information DCI.
  • the PRI, HARQ feedback time indication, UL/SUL indication, and carrier indication are all existing fields in the format of downlink control information DCI (Downlink Control Information), and the additional field is set in the embodiment of this application Yes, a newly added field in DCI.
  • DCI Downlink Control Information
  • the length of the PRI field is 3 bits
  • the length of the UL/SUL indication and the carrier indication field is 1 bit
  • the value of the HARQ feedback time indication indicates that after receiving the data of the PDSCH (Physical Downlink Shared Channel, the physical downlink shared channel) needs to How long to send the HARQ-ACK information
  • the length of this field is 3 bits
  • the value is ⁇ 1, 2, 3, 4, 5, 6, 7, 8 ⁇ .
  • the terminal device can according to the carrier switching instruction, that is, the additional field in the downlink control information DCI, the multiplexing physical uplink control channel resource indication PRI, the multiplexing hybrid automatic repeat request HARQ feedback time indication, the multiplexing At least one of the uplink/supplementary uplink UL/SUL indication and the carrier indication in the multiplexed downlink control information DCI is used to determine the target carrier from the candidate carriers.
  • the carrier switching instruction that is, the additional field in the downlink control information DCI, the multiplexing physical uplink control channel resource indication PRI, the multiplexing hybrid automatic repeat request HARQ feedback time indication, the multiplexing At least one of the uplink/supplementary uplink UL/SUL indication and the carrier indication in the multiplexed downlink control information DCI is used to determine the target carrier from the candidate carriers.
  • the carrier switching indication includes an additional field in the DCI.
  • the carrier switching indication includes a multiplexing physical uplink control channel resource indication PRI.
  • the carrier switching indication includes a multiplexing Hybrid Automatic Repeat Request (HARQ) feedback time indication.
  • HARQ Hybrid Automatic Repeat Request
  • the carrier switching indication comprises a multiplexed uplink/supplemental uplink UL/SUL indication.
  • the carrier switching indication includes a joint indication of uplink/supplementary uplink UL/SUL and physical uplink control channel resource indication PRI.
  • the carrier switching indication includes a joint indication of a hybrid automatic repeat request (HARQ) feedback time indication and a physical uplink control channel resource indication (PRI).
  • HARQ hybrid automatic repeat request
  • PRI physical uplink control channel resource indication
  • the carrier switching indication includes a joint indication of the carrier indication in the downlink control information DCI and the physical uplink control channel resource indication PRI.
  • the joint indication refers to that each indication information in the joint indication serves as an indication for determining the target carrier.
  • multiplexing indication information such as PRI, HARQ feedback time indication, UL/SUL indication or carrier indication
  • multiplexing effective indication information indicating that the multiplexing takes effect may also be set.
  • the above-mentioned carrier switching indication method is exemplary, and other indication or joint indication methods may be flexibly selected according to candidate carriers and available resources of the candidate carriers.
  • Step 202 Determine the target carrier of the physical uplink control channel from the candidate carriers according to the carrier switching instruction.
  • the candidate carrier refers to the carrier on the PUCCH time-frequency resource that the terminal device can use to send HARQ-ACK
  • the target carrier is determined according to the carrier switching instruction, and finally used to send the carrier on the PUCCH time-frequency resource of the HARQ-ACK .
  • the number of candidate carriers may be two or four.
  • the candidate carrier includes the original carrier, where the original carrier refers to the carrier on the PUCCH time-frequency resource originally intended to be used by the terminal device to send the HARQ-ACK.
  • the candidate carrier includes the original carrier, and the target carrier may be the original carrier.
  • the terminal device further includes: sending feedback information on the target carrier.
  • the target carrier of the physical uplink control channel is determined from the candidate carriers, so that the terminal device can perform carrier switching according to the instruction, ensuring the reliability and feedback of HARQ-ACK transmission Efficiency, reduced interference, and improved load balancing.
  • FIG. 3 is a schematic flowchart of a carrier switching method provided in an embodiment of the present application. It should be noted that the carrier switching method in the embodiment of the present application is performed by a terminal device. As shown in Figure 3, the method may include the following steps:
  • Step 301 receiving a carrier switching instruction.
  • the carrier switching indication includes an additional field in the downlink control information DCI.
  • the carrier switching indication includes a multiplexing physical uplink control channel resource indication PRI.
  • the carrier switching indication includes a multiplexing hybrid automatic repeat request (HARQ) feedback time indication.
  • HARQ hybrid automatic repeat request
  • the carrier switching instruction includes a multiplexed uplink/supplementary uplink UL/SUL instruction.
  • Step 302 Instruct carrier switching between two candidate carriers according to the carrier switching instruction.
  • the carrier switching indication includes an additional field in the downlink control information DCI.
  • the additional field is 1 bit, and according to the 1-bit additional field, carrier switching between two candidate carriers is indicated.
  • the additional field when the additional field is set to 0, it means switching from the original carrier to another carrier; when the additional field is 1, it means no switching; similarly, when the additional field is set to 1, it means switching from the original carrier to another For another carrier, when the additional field is 0, it means no handover.
  • additional fields of other lengths can also be set, for example, a 2-bit additional field is set, when the additional field is 00, 11, it means switching from the original carrier to another carrier, when the additional field is 01, 10 , indicating no switching, etc.
  • the carrier switching indication includes a multiplexing physical uplink control channel resource indication PRI.
  • the multiplexed physical uplink control channel resource indication PRI is 1 bit, and according to the multiplexed 1-bit PRI, carrier switching between two candidate carriers is indicated. For example, set the multiplexed 1-bit PRI as the highest bit among the 3 bits. When the highest bit is set to 0, it means switching from the original carrier to another carrier. When the highest bit is 1, it means no switching. Similarly, When the highest bit is set to 1, it means switching from the original carrier to another carrier, and when the highest bit is 0, it means no switching.
  • the second highest PRI or the lowest PRI can also be multiplexed to indicate switching between two candidate carriers.
  • a multiplexed 2-bit PRI can also be set.
  • the additional field is 00, 01, it means switching from the original carrier to another carrier; when the additional field is 10, 11, it means no switching, etc.
  • the carrier switching indication includes a multiplexing hybrid automatic repeat request (HARQ) feedback time indication.
  • HARQ hybrid automatic repeat request
  • the value of the hybrid automatic repeat request HARQ feedback time indication indicates how long it takes to send the HARQ-ACK information after receiving the PDSCH data.
  • the length of this field is 3 bits, and the value is ⁇ 1,2,3,4,5,6,7,8 ⁇ . Therefore, multiplexing the HARQ feedback time indication to indicate carrier switching is an implicit indication.
  • the multiplexed HARQ feedback time indication is a parity indication, for example, when the value of the HARQ feedback time indication is set to an odd number, it means switching from the original carrier to another carrier, and when the value of the HARQ feedback time indication is an even number, it means no switching , similarly, when the value of the HARQ feedback time indication is an even number, it means switching from the original carrier to another carrier, and when the value of the HARQ feedback time indication is an odd number, it means no switching.
  • the multiplexed HARQ feedback time indication is a preset specific value indication, for example, when the value of the HARQ feedback time indication is set to ⁇ 1, 2 ⁇ , it means switching from the original carrier to another carrier, and the value of the HARQ feedback time indication is When it is ⁇ 3,4,5,6,7,8 ⁇ , it means no switching. It can be understood that the setting of the preset specific value can be changed and configured flexibly according to scenarios and requirements.
  • the carrier switching instruction includes a multiplexed uplink/supplementary uplink UL/SUL instruction.
  • the UL/SUL indicator when the UL/SUL indicator is set to 0, it means switching from the original carrier to another carrier; when the UL/SUL indicator is 1, it means no switching; similarly, when the UL/SUL indicator is set to 1, it means When switching from the original carrier to another carrier, when the UL/SUL indicator is 0, it means no switching.
  • the PUCCH time-frequency resources available to the candidate carrier may be preset, and when the carrier is switched according to the carrier switching instruction, the PUCCH time-frequency resource available to the target carrier is also determined at the same time. resource.
  • multiplexing validation indication information indicating that the multiplexing is valid may also be set.
  • the terminal device can perform carrier switching according to the instruction, ensuring the reliability and feedback efficiency of HARQ-ACK transmission, reducing the Interference, improve load balancing.
  • FIG. 4 is a schematic flowchart of a carrier switching method provided in an embodiment of the present application. It should be noted that the carrier switching method in the embodiment of the present application is performed by a terminal device. As shown in Figure 4, the method may include the following steps:
  • Step 401 receiving a carrier switching instruction.
  • the carrier switching indication includes an additional field in the downlink control information DCI.
  • the carrier switching indication includes a multiplexed physical uplink control channel resource indication PRI, where the multiplexed physical uplink control channel resource indication PRI includes 1-bit first indication information and 2-bit second indication information.
  • the carrier switching indication includes a multiplexed physical uplink control channel resource indication PRI, where the multiplexed physical uplink control channel resource indication PRI includes 2-bit first indication information and 1-bit second indication information.
  • the carrier switching indication includes a multiplexed physical uplink control channel resource indication PRI, where the physical uplink control channel resource indication PRI includes third indication information.
  • the carrier switching indication includes a joint indication of an uplink/supplementary uplink UL/SUL and a physical uplink control channel resource indication PRI.
  • the carrier switching indication includes a joint indication of the carrier indication in the downlink control information DCI and the physical uplink control channel resource indication PRI.
  • the carrier switching indication includes a joint indication of a hybrid automatic repeat request (HARQ) feedback time and a physical uplink control channel resource indication (PRI).
  • HARQ hybrid automatic repeat request
  • PRI physical uplink control channel resource indication
  • Step 402 Determine a target carrier from four candidate carriers according to the carrier switching instruction.
  • the carrier switching indication includes an additional field in the downlink control information DCI.
  • the additional field is 2 bits.
  • the carrier index of the target carrier is indicated, and the target carrier is determined from four candidate carriers.
  • the additional field when the additional field is set to 00, it means that the carrier index of the target carrier is No. 1, that is, the target carrier is CC1; when the additional field is set to 01, it means that the carrier index of the target carrier is No. 2, that is, the target carrier is CC2 , when the additional field is 10, it means that the carrier index of the target carrier is No. 3, that is, the target carrier is CC3; when the additional field is 11, it means that the carrier index of the target carrier is No. 4, that is, the target carrier is CC4.
  • the length of the additional field may also be greater than 2 bits, and the carrier index of the indicated target carrier is determined according to the indication of the additional field.
  • the carrier switching indication includes a multiplexed physical uplink control channel resource indication PRI, where the multiplexed physical uplink control channel resource indication PRI includes 1-bit first indication information and 2-bit second indication information.
  • the length of the PRI field is 3 bits.
  • the first indication information is the highest bit among the 3 bits
  • the second indication information is the second highest bit and the lowest bit among the 3 bits.
  • the first indication information can also be set as the lowest bit among the 3 bits, and the second indication information is the highest bit and the second highest bit among the 3 bits.
  • the first indication information is used to indicate the subset of candidate carriers where the target carrier is located
  • the second indication information is used to indicate available PUCCH time-frequency resources of the target carrier.
  • the candidate carrier subset is to divide four carriers into two candidate carrier subsets, and each subset has two candidate carriers.
  • the second indication information indicates the resource index of the PUCCH time-frequency resource.
  • the two candidate carriers in each candidate carrier subset have a total of no more than 4 available PUCCH time-frequency resources.
  • the available PUCCH time-frequency resources for the candidate carriers in the first subset are set to ⁇ CC1 PUCCH resource0, CC2 PUCCH resource1, CC2 PUCCH resource2, CC2 PUCCH resource3 ⁇ , where PUCCH resource represents the PUCCH time-frequency resource, and 0, 1, 2, 3 after the resource are resource indexes.
  • the first indication information When the first indication information is set to 0, it means that the subset of candidate carriers where the target carrier is located is the first subset set1; when the first indication information is 1, it means that the subset of candidate carriers where the target carrier is located is the second subset set2, similarly, when the first indication information is set to 1, it means that the candidate carrier subset where the target carrier is located is the first subset set1, and when the first indication information is 0, it means that the candidate carrier sub-set where the target carrier is located The set is the second subset set2.
  • the indicated resource index is 0, that is, the PUCCH resource0 on the target carrier CC1, and when the second indication information is 01, the indicated resource index is 1, that is, the PUCCH resource1 on the target carrier CC2 , when the second indication information is 10, the indicated resource index is 2, that is, the PUCCH resource2 on the target carrier CC2, and when the second indication information is 11, the indicated resource index is 3, that is, the PUCCH resource3 on the target carrier CC2 .
  • the PUCCH time-frequency resources available to the candidate carriers in each candidate carrier subset may be preset, and the two candidate carriers in each candidate carrier subset have a total of no more than 4 available PUCCHs.
  • the available time-frequency resources of candidate carriers can be flexibly adjusted and configured according to scenarios and requirements.
  • the carrier switching indication includes a multiplexed physical uplink control channel resource indication PRI, where the multiplexed physical uplink control channel resource indication PRI includes 2-bit first indication information and 1-bit second indication information.
  • the first indication information is the highest bit and the second highest bit among the 3 bits
  • the second indication information is the lowest bit among the 3 bits.
  • the first indication information may also be set as the second highest bit and the lowest bit of the 3 bits, and the second indication information is the highest bit of the 3 bits.
  • the first indication information is used to indicate the carrier index of the target carrier
  • the second indication information is used to indicate the available PUCCH time-frequency resources of the target carrier.
  • each candidate carrier has at most 2 available PUCCH time-frequency resources.
  • the first indication information when the first indication information is set to 00, it means that the carrier index of the target carrier is No. 1, that is, the target carrier is CC1; when the first indication information is 01, it means that the carrier index of the target carrier is No. 2, that is, the target carrier CC2, when the first indication information is 10, it means that the carrier index of the target carrier is No. 3, that is, the target carrier is CC3, and when the first indication information is 11, it means that the carrier index of the target carrier is No. 4, that is, the target carrier for CC4.
  • the second indication information when the second indication information is set to 0, it indicates that the available time-frequency resource of the target carrier is PUCCH resource0, and when the second indication information is 1, it indicates that the available time-frequency resource of the target carrier is PUCCH resource1. It can be understood that the PUCCH resource0 corresponding to different carriers may be the same or different.
  • the available PUCCH time-frequency resources for each candidate carrier can be pre-set.
  • each candidate carrier has a total of no more than 2 available PUCCH time-frequency resources, it can be
  • the available time-frequency resources of candidate carriers are flexibly adjusted and configured.
  • the carrier switching indication includes a multiplexed physical uplink control channel resource indication PRI, where the physical uplink control channel resource indication PRI includes third indication information.
  • the third indication information is 3 bits.
  • the third indication information is used to indicate the target carrier and the corresponding PUCCH time-frequency resource.
  • the four candidate carriers have no more than 8 available PUCCH time-frequency resources at most.
  • Four candidate carriers and available PUCCH time-frequency resources can form a new carrier-resource set, such as ⁇ CC1 resource0, CC2 resource1, CC2 resource2, CC2 resource3, CC3 resource4, CC3 resource5, CC3 resources6, CC4 resource7 ⁇ .
  • the third indication information is used to indicate the target carrier and the PUCCH time-frequency resource corresponding to the target carrier. For example, when the third indication information is set to 000, the indication target carrier is CC1, and the corresponding PUCCH time-frequency resource is resource0.
  • the third indication When the information is 001, indicate that the target carrier is CC2, and the corresponding PUCCH time-frequency resource is resource1; when the third indication information is 010, indicate that the target carrier is CC2, and the corresponding PUCCH time-frequency resource is resource2; when the third indication information is 011 , indicate that the target carrier is CC2, the corresponding PUCCH time-frequency resource is resource3, when the third indication information is 100, indicate that the target carrier is CC3, and the corresponding PUCCH time-frequency resource is resource4, when the third indication information is 101, indicate the target carrier is CC3, the corresponding PUCCH time-frequency resource is resource5, when the third indication information is 110, it indicates that the target carrier is CC3, and the corresponding PUCCH time-frequency resource is
  • the candidate carriers and available PUCCH time-frequency resources can be pre-set.
  • the four candidate carriers have no more than 8 available PUCCH time-frequency resources
  • the The available time-frequency resources of candidate carriers are flexibly adjusted and configured.
  • the carrier switching indication includes a joint indication of an uplink/supplementary uplink UL/SUL and a physical uplink control channel resource indication PRI.
  • the uplink/supplementary uplink UL/SUL indication is used to indicate the candidate carrier subset where the target carrier is located
  • the physical uplink control channel resource indicator PRI is used to indicate the target carrier in the time-frequency resource set corresponding to the candidate carrier subset. PUCCH time-frequency resources.
  • the candidate carrier subset is to divide four carriers into two candidate carrier subsets, and each subset has two candidate carriers.
  • the PUCCH time-frequency resources available to the candidate carriers in the first subset are set to ⁇ CC1 resource0, CC1 resource1, CC2 resource2 , CC2 resource3, CC2 resource4, CC2 resource5, CC2 resources6, CC2 resource7 ⁇ .
  • the UL/SUL indication can be set to 0, it means that the candidate carrier subset where the target carrier is located is the first subset set1, and when the UL/SUL indication is 1, it means that the candidate carrier subset where the target carrier is located is the second subset set2, Similarly, when the UL/SUL indicator is set to 1, it means that the candidate carrier subset where the target carrier is located is the first subset set1, and when the UL/SUL indicator is 0, it means that the candidate carrier subset where the target carrier is located is the second subset Subset set2.
  • the target PUCCH time-frequency resource is indicated as resource0; when PRI is 001, the target time-frequency resource is indicated as resource1; when PRI is 010, the target PUCCH time-frequency resource is indicated as resource2; when PRI is 011, the target PUCCH is indicated
  • the time-frequency resource is resource3 and the PRI is 100, indicate that the target PUCCH time-frequency resource is resource4; when the PRI is 101, indicate that the target PUCCH time-frequency resource is resource5; when the PRI is 110, indicate that the target PUCCH time-frequency resource is resource6, and the PRI is At 111, it indicates that the target PUCCH time-frequency resource is resource7.
  • the PUCCH time-frequency resources available to the candidate carriers in each candidate carrier subset can be preset, and there are no more than 8 available PUCCHs in each candidate carrier subset.
  • the available time-frequency resources of candidate carriers can be flexibly adjusted and configured according to scenarios and requirements.
  • the carrier switching indication includes a joint indication of the carrier indication in the downlink control information DCI and the physical uplink control channel resource indication PRI.
  • the carrier indication is used to indicate the carrier index of the target carrier
  • the physical uplink control channel resource indication PRI is used to indicate the target PUCCH time-frequency resource in the time-frequency resource set corresponding to the target carrier.
  • the carrier indicator when the carrier indicator is set to 00, it means that the carrier index of the target carrier is No. 1, that is, the target carrier is CC1, and when the carrier indicator is 01, it means that the carrier index of the target carrier is No.
  • the indication when the indication is 10, it means that the carrier index of the target carrier is No. 3, that is, the target carrier is CC3; when the carrier indication is 11, it means that the carrier index of the target carrier is No. 4, that is, the target carrier is CC4.
  • the target PUCCH time-frequency resource is indicated as resource0; when PRI is 001, the target time-frequency resource is indicated as resource1; when PRI is 010, the target PUCCH time-frequency resource is indicated as resource2; when PRI is 011, the target PUCCH is indicated
  • the time-frequency resource is resource3 and the PRI is 100
  • the target PUCCH time-frequency resource is indicated as resource4; when the PRI is 101, the target PUCCH time-frequency resource is indicated as resource5; when the PRI is 110, the target PUCCH time-frequency resource is indicated as resource6 and the PRI is At 111, it indicates that the target PUCCH time-frequency resource is resource7.
  • the available PUCCH time-frequency resources for each candidate carrier can be preset. In the case that each candidate carrier has no more than 8 available PUCCH time-frequency resources, it can be configured according to scenarios and requirements.
  • the available time-frequency resources of candidate carriers are flexibly adjusted and configured.
  • the carrier switching indication includes a joint indication of a hybrid automatic repeat request (HARQ) feedback time and a physical uplink control channel resource indication (PRI).
  • HARQ hybrid automatic repeat request
  • PRI physical uplink control channel resource indication
  • the hybrid automatic repeat request HARQ feedback time indication is used to implicitly indicate the candidate carrier subset where the target carrier is located, and the physical uplink control channel resource indication PRI is used to indicate the target carrier in the time-frequency resource set corresponding to the candidate carrier subset.
  • PUCCH time-frequency resources are used to implicitly indicate the candidate carrier subset where the target carrier is located.
  • the HARQ feedback time indication is multiplexed as a parity indication.
  • the value of the HARQ feedback time indication when the value of the HARQ feedback time indication is set to an odd number, it means that the candidate carrier subset where the target carrier is located is the first subset set1, and the HARQ feedback time indication value is When it is an even number, it means that the subset of candidate carriers where the target carrier is located is the second subset set2.
  • the value of the HARQ feedback time indication is even, it means that the subset of candidate carriers where the target carrier is located is the first subset set1
  • the value of the HARQ feedback time indication when the value of the HARQ feedback time indication is an odd number, it means that the candidate carrier subset where the target carrier is located is the second subset set2.
  • the multiplexed HARQ feedback time indication is a preset specific value indication, for example, when the value of the HARQ feedback time indication is set to ⁇ 1, 2 ⁇ , it means that the candidate carrier subset where the target carrier is located is the first subset set1, When the value of the HARQ feedback time indication is ⁇ 3, 4, 5, 6, 7, 8 ⁇ , it indicates that the candidate carrier subset where the target carrier is located is the second subset set2. It can be understood that the setting of the preset specific value can be flexibly configured according to scenarios and requirements.
  • the PUCCH time-frequency resources available to the candidate carriers in the first subset are set to ⁇ CC1 resource0, CC1 resource1, CC2 resource2, CC2 resource3, CC2 resource4, CC2 resource5, CC2 resources6, CC2 resource7 ⁇ .
  • the target PUCCH time-frequency resource is indicated as resource0; when PRI is 001, the target time-frequency resource is indicated as resource1; when PRI is 010, the target PUCCH time-frequency resource is indicated as resource2;
  • the target PUCCH time-frequency resource is resource3 and the PRI is 100, indicate that the target PUCCH time-frequency resource is resource4; when the PRI is 101, indicate that the target PUCCH time-frequency resource is resource5; when the PRI is 110, indicate that the target PUCCH time-frequency resource is resource6,
  • the PRI is 111, it indicates that the target PUCCH time-frequency resource is resource7.
  • the available PUCCH time-frequency resources for each candidate carrier can be preset. In the case that each candidate carrier has no more than 8 available PUCCH time-frequency resources, it can be configured according to scenarios and requirements.
  • the available time-frequency resources of candidate carriers are flexibly adjusted and configured.
  • the granularity of the PUCCH time-frequency resources can also be flexibly adjusted and configured according to scenarios and needs.
  • multiplexing validation indication information indicating that the multiplexing is valid may also be set.
  • the target carrier is determined from the four candidate carriers, so that the terminal device can perform carrier switching according to the instruction, ensuring the reliability and feedback efficiency of HARQ-ACK transmission, and reducing interference. Improve load balancing.
  • FIG. 5 is a schematic flowchart of a carrier switching method provided in an embodiment of the present application. It should be noted that the carrier switching method in the embodiment of the present application is performed by a network device. As shown in Figure 5, the method may include the following steps:
  • Step 501 sending a carrier switching instruction, wherein the carrier switching instruction is used to instruct the terminal device to determine a target carrier of a physical uplink control channel from candidate carriers.
  • the carrier switching instruction includes at least one of the following: an additional field in the downlink control information DCI; a multiplexed physical uplink control channel resource indicator PRI; a multiplexed hybrid automatic repeat request HARQ feedback time indication; a multiplexed uplink/ Supplementary uplink UL/SUL indication; multiplexing the carrier indication field in the downlink control information DCI.
  • the PRI, HARQ feedback time indication, UL/SUL indication, and carrier indication are all existing fields in the format of downlink control information DCI (Downlink Control Information), and the additional field is set in the embodiment of this application Yes, a newly added field in DCI.
  • DCI Downlink Control Information
  • the length of the PRI field is 3 bits
  • the length of the UL/SUL indication and the carrier indication field is 1 bit
  • the value of the HARQ feedback time indication indicates that after receiving the data of the PDSCH (Physical Downlink Shared Channel, the physical downlink shared channel) needs to How long to send the HARQ-ACK information
  • the length of this field is 3 bits
  • the value is ⁇ 1, 2, 3, 4, 5, 6, 7, 8 ⁇ .
  • the terminal device can according to the carrier switching instruction, that is, the additional field in the downlink control information DCI, the multiplexing physical uplink control channel resource indication PRI, the multiplexing hybrid automatic repeat request HARQ feedback time indication, the multiplexing At least one of the uplink/supplementary uplink UL/SUL indication and the carrier indication in the multiplexed downlink control information DCI is used to determine the target carrier from the candidate carriers.
  • the carrier switching instruction that is, the additional field in the downlink control information DCI, the multiplexing physical uplink control channel resource indication PRI, the multiplexing hybrid automatic repeat request HARQ feedback time indication, the multiplexing At least one of the uplink/supplementary uplink UL/SUL indication and the carrier indication in the multiplexed downlink control information DCI is used to determine the target carrier from the candidate carriers.
  • the carrier switching indication includes an additional field in the DCI.
  • the carrier switching indication includes a multiplexing physical uplink control channel resource indication PRI.
  • the carrier switching indication includes a multiplexing Hybrid Automatic Repeat Request (HARQ) feedback time indication.
  • HARQ Hybrid Automatic Repeat Request
  • the carrier switching indication comprises a multiplexed uplink/supplemental uplink UL/SUL indication.
  • the carrier switching indication includes a joint indication of uplink/supplementary uplink UL/SUL and physical uplink control channel resource indication PRI.
  • the carrier switching indication includes a joint indication of a hybrid automatic repeat request (HARQ) feedback time indication and a physical uplink control channel resource indication (PRI).
  • HARQ hybrid automatic repeat request
  • PRI physical uplink control channel resource indication
  • the carrier switching indication includes a joint indication of the carrier indication in the downlink control information DCI and the physical uplink control channel resource indication PRI.
  • the joint indication refers to that each indication information in the joint indication serves as an indication for determining the target carrier.
  • multiplexing indication information such as PRI, HARQ feedback time indication, UL/SUL indication or carrier indication
  • multiplexing effective indication information indicating that the multiplexing is effective may also be sent.
  • the above-mentioned carrier switching indication method is exemplary, and other indication or joint indication methods may be flexibly selected according to candidate carriers and available resources of the candidate carriers.
  • the candidate carrier refers to the carrier on the PUCCH time-frequency resource that the terminal device can use to send HARQ-ACK
  • the target carrier is determined according to the carrier switching instruction, and finally used to send the carrier on the PUCCH time-frequency resource of the HARQ-ACK .
  • the number of candidate carriers may be two or four.
  • the candidate carrier includes the original carrier, where the original carrier refers to the carrier on the PUCCH time-frequency resource originally intended to be used by the terminal device to send the HARQ-ACK.
  • the candidate carrier includes the original carrier, and the target carrier may be the original carrier.
  • the terminal device further includes: sending feedback information on the target carrier.
  • FIG. 6 is a schematic flowchart of a carrier switching method provided by an embodiment of the present application. It should be noted that the carrier switching method in the embodiment of the present application is performed by a network device. As shown in Figure 6, the method may include the following steps:
  • Step 601 Send a carrier switching instruction, where the carrier switching instruction is used to instruct a terminal device to switch between two candidate carriers.
  • the carrier switching indication includes an additional field in the downlink control information DCI.
  • the additional field is 1 bit, and according to the 1-bit additional field, carrier switching between two candidate carriers is indicated.
  • the additional field when the additional field is set to 0, it means switching from the original carrier to another carrier; when the additional field is 1, it means no switching; similarly, when the additional field is set to 1, it means switching from the original carrier to another For another carrier, when the additional field is 0, it means no handover.
  • additional fields of other lengths can also be set, for example, a 2-bit additional field is set, when the additional field is 00, 11, it means switching from the original carrier to another carrier, when the additional field is 01, 10 , indicating no switching, etc.
  • the carrier switching indication includes a multiplexing physical uplink control channel resource indication PRI.
  • the multiplexed physical uplink control channel resource indication PRI is 1 bit, and according to the multiplexed 1-bit PRI, carrier switching between two candidate carriers is indicated. For example, set the multiplexed 1-bit PRI as the highest bit among the 3 bits. When the highest bit is set to 0, it means switching from the original carrier to another carrier. When the highest bit is 1, it means no switching. Similarly, When the highest bit is set to 1, it means switching from the original carrier to another carrier, and when the highest bit is 0, it means no switching.
  • the second highest PRI or the lowest PRI can also be multiplexed to indicate switching between two candidate carriers.
  • a multiplexed 2-bit PRI can also be set.
  • the additional field is 00, 01, it means switching from the original carrier to another carrier; when the additional field is 10, 11, it means no switching, etc.
  • the carrier switching indication includes a multiplexing hybrid automatic repeat request (HARQ) feedback time indication.
  • HARQ hybrid automatic repeat request
  • the value of the hybrid automatic repeat request HARQ feedback time indication indicates how long it takes to send the HARQ-ACK information after receiving the PDSCH data.
  • the length of this field is 3 bits, and the value is ⁇ 1,2,3,4,5,6,7,8 ⁇ . Therefore, multiplexing the HARQ feedback time indication to indicate carrier switching is an implicit indication.
  • the multiplexed HARQ feedback time indication is a parity indication, for example, when the value of the HARQ feedback time indication is set to an odd number, it means switching from the original carrier to another carrier, and when the value of the HARQ feedback time indication is an even number, it means no switching , similarly, when the value of the HARQ feedback time indication is an even number, it means switching from the original carrier to another carrier, and when the value of the HARQ feedback time indication is an odd number, it means no switching.
  • the multiplexed HARQ feedback time indication is a preset specific value indication, for example, when the value of the HARQ feedback time indication is set to ⁇ 1, 2 ⁇ , it means switching from the original carrier to another carrier, and the value of the HARQ feedback time indication is When it is ⁇ 3,4,5,6,7,8 ⁇ , it means no switching. It can be understood that the setting of the preset specific value can be changed and configured flexibly according to scenarios and requirements.
  • the carrier switching instruction includes a multiplexed uplink/supplementary uplink UL/SUL instruction.
  • the UL/SUL indicator when the UL/SUL indicator is set to 0, it means switching from the original carrier to another carrier; when the UL/SUL indicator is 1, it means no switching; similarly, when the UL/SUL indicator is set to 1, it means When switching from the original carrier to another carrier, when the UL/SUL indicator is 0, it means no switching.
  • the PUCCH time-frequency resources available to the candidate carrier may be preset, and when the carrier is switched according to the carrier switching instruction, the PUCCH time-frequency resource available to the target carrier is also determined at the same time. resource.
  • multiplexing validation indication information indicating that the multiplexing is valid may also be sent.
  • the carrier switching instruction is used to instruct the terminal device to switch the carrier between two candidate carriers, so that the terminal device can perform carrier switching according to the instruction, ensuring the reliability and reliability of HARQ-ACK transmission.
  • Feedback efficiency reduces interference and improves load balancing.
  • FIG. 7 is a schematic flowchart of a carrier switching method provided in an embodiment of the present application. It should be noted that the carrier switching method in the embodiment of the present application is performed by a network device. As shown in Figure 7, the method may include the following steps:
  • Step 701 Send a carrier switching instruction, where the carrier switching instruction is used to instruct a terminal device to determine a target carrier from four candidate carriers.
  • the carrier switching indication includes an additional field in the downlink control information DCI.
  • the additional field is 2 bits.
  • the carrier index of the target carrier is indicated, and the target carrier is determined from four candidate carriers.
  • the additional field when the additional field is set to 00, it means that the carrier index of the target carrier is No. 1, that is, the target carrier is CC1; when the additional field is set to 01, it means that the carrier index of the target carrier is No. 2, that is, the target carrier is CC2 , when the additional field is 10, it means that the carrier index of the target carrier is No. 3, that is, the target carrier is CC3; when the additional field is 11, it means that the carrier index of the target carrier is No. 4, that is, the target carrier is CC4.
  • the length of the additional field may also be greater than 2 bits, and the carrier index of the indicated target carrier is determined according to the indication of the additional field.
  • the carrier switching indication includes a multiplexed physical uplink control channel resource indication PRI, where the multiplexed physical uplink control channel resource indication PRI includes 1-bit first indication information and 2-bit second indication information.
  • the length of the PRI field is 3 bits.
  • the first indication information is the highest bit among the 3 bits
  • the second indication information is the second highest bit and the lowest bit among the 3 bits.
  • the first indication information can also be set as the lowest bit among the 3 bits, and the second indication information is the highest bit and the second highest bit among the 3 bits.
  • the first indication information is used to indicate the subset of candidate carriers where the target carrier is located
  • the second indication information is used to indicate available PUCCH time-frequency resources of the target carrier.
  • the candidate carrier subset is to divide four carriers into two candidate carrier subsets, and each subset has two candidate carriers.
  • the second indication information indicates the resource index of the PUCCH time-frequency resource.
  • the two candidate carriers in each candidate carrier subset have a total of no more than 4 available PUCCH time-frequency resources.
  • the available PUCCH time-frequency resources for the candidate carriers in the first subset are set to ⁇ CC1 PUCCH resource0, CC2 PUCCH resource1, CC2 PUCCH resource2, CC2 PUCCH resource3 ⁇ , where PUCCH resource represents the PUCCH time-frequency resource, and 0, 1, 2, 3 after the resource are resource indexes.
  • the first indication information When the first indication information is set to 0, it means that the subset of candidate carriers where the target carrier is located is the first subset set1; when the first indication information is 1, it means that the subset of candidate carriers where the target carrier is located is the second subset set2, similarly, when the first indication information is set to 1, it means that the candidate carrier subset where the target carrier is located is the first subset set1, and when the first indication information is 0, it means that the candidate carrier sub-set where the target carrier is located The set is the second subset set2.
  • the indicated resource index is 0, that is, the PUCCH resource0 on the target carrier CC1, and when the second indication information is 01, the indicated resource index is 1, that is, the PUCCH resource1 on the target carrier CC2 , when the second indication information is 10, the indicated resource index is 2, that is, the PUCCH resource2 on the target carrier CC3, and when the second indication information is 11, the indicated resource index is 3, that is, the PUCCH resource3 on the target carrier CC4 .
  • the PUCCH time-frequency resources available to the candidate carriers in each candidate carrier subset may be preset, and the two candidate carriers in each candidate carrier subset have a total of no more than 4 available PUCCHs.
  • the available time-frequency resources of candidate carriers can be flexibly adjusted and configured according to scenarios and requirements.
  • the carrier switching indication includes a multiplexed physical uplink control channel resource indication PRI, where the multiplexed physical uplink control channel resource indication PRI includes 2-bit first indication information and 1-bit second indication information.
  • the first indication information is the highest bit and the second highest bit among the 3 bits
  • the second indication information is the lowest bit among the 3 bits.
  • the first indication information may also be set as the second highest bit and the lowest bit of the 3 bits, and the second indication information is the highest bit of the 3 bits.
  • the first indication information is used to indicate the carrier index of the target carrier
  • the second indication information is used to indicate the available PUCCH time-frequency resources of the target carrier.
  • each candidate carrier has at most 2 available PUCCH time-frequency resources.
  • the first indication information when the first indication information is set to 00, it means that the carrier index of the target carrier is No. 1, that is, the target carrier is CC1; when the first indication information is 01, it means that the carrier index of the target carrier is No. 2, that is, the target carrier CC2, when the first indication information is 10, it means that the carrier index of the target carrier is No. 3, that is, the target carrier is CC3, and when the first indication information is 11, it means that the carrier index of the target carrier is No. 4, that is, the target carrier for CC4.
  • the second indication information when the second indication information is set to 0, it indicates that the available time-frequency resource of the target carrier is PUCCH resource0, and when the second indication information is 1, it indicates that the available time-frequency resource of the target carrier is PUCCH resource1. It can be understood that the PUCCH resource0 corresponding to different carriers may be the same or different.
  • the available PUCCH time-frequency resources for each candidate carrier can be pre-set.
  • each candidate carrier has a total of no more than 2 available PUCCH time-frequency resources, it can be
  • the available time-frequency resources of candidate carriers are flexibly adjusted and configured.
  • the carrier switching indication includes a multiplexed physical uplink control channel resource indication PRI, where the physical uplink control channel resource indication PRI includes third indication information.
  • the third indication information is 3 bits.
  • the third indication information is used to indicate the target carrier and the corresponding PUCCH time-frequency resource.
  • the four candidate carriers have no more than 8 available PUCCH time-frequency resources at most.
  • Four candidate carriers and available PUCCH time-frequency resources can form a new carrier-resource set, such as ⁇ CC1 resource0, CC2 resource1, CC2 resource2, CC2 resource3, CC3 resource4, CC3 resource5, CC3 resources6, CC4 resource7 ⁇ .
  • the third indication information is used to indicate the target carrier and the PUCCH time-frequency resource corresponding to the target carrier. For example, when the third indication information is set to 000, the indication target carrier is CC1, and the corresponding PUCCH time-frequency resource is resource0.
  • the third indication When the information is 001, indicate that the target carrier is CC2, and the corresponding PUCCH time-frequency resource is resource1; when the third indication information is 010, indicate that the target carrier is CC2, and the corresponding PUCCH time-frequency resource is resource2; when the third indication information is 011 , indicate that the target carrier is CC2, the corresponding PUCCH time-frequency resource is resource3, when the third indication information is 100, indicate that the target carrier is CC3, and the corresponding PUCCH time-frequency resource is resource4, when the third indication information is 101, indicate the target carrier is CC3, the corresponding PUCCH time-frequency resource is resource5, when the third indication information is 110, it indicates that the target carrier is CC3, and the corresponding PUCCH time-frequency resource is
  • the candidate carriers and available PUCCH time-frequency resources can be pre-set.
  • the four candidate carriers have no more than 8 available PUCCH time-frequency resources
  • the The available time-frequency resources of candidate carriers are flexibly adjusted and configured.
  • the carrier switching indication includes a joint indication of an uplink/supplementary uplink UL/SUL and a physical uplink control channel resource indication PRI.
  • the uplink/supplementary uplink UL/SUL indication is used to indicate the candidate carrier subset where the target carrier is located
  • the physical uplink control channel resource indicator PRI is used to indicate the target carrier in the time-frequency resource set corresponding to the candidate carrier subset. PUCCH time-frequency resources.
  • the candidate carrier subset is to divide four carriers into two candidate carrier subsets, and each subset has two candidate carriers.
  • the PUCCH time-frequency resources available to the candidate carriers in the first subset are set to ⁇ CC1 resource0, CC1 resource1, CC2 resource2 , CC2 resource3, CC2 resource4, CC2 resource5, CC2 resources6, CC2 resource7 ⁇ .
  • the UL/SUL indication can be set to 0, it means that the candidate carrier subset where the target carrier is located is the first subset set1, and when the UL/SUL indication is 1, it means that the candidate carrier subset where the target carrier is located is the second subset set2, Similarly, when the UL/SUL indicator is set to 1, it means that the candidate carrier subset where the target carrier is located is the first subset set1, and when the UL/SUL indicator is 0, it means that the candidate carrier subset where the target carrier is located is the second subset Subset set2.
  • the target PUCCH time-frequency resource is indicated as resource0; when PRI is 001, the target time-frequency resource is indicated as resource1; when PRI is 010, the target PUCCH time-frequency resource is indicated as resource2; when PRI is 011, the target PUCCH is indicated
  • the time-frequency resource is resource3 and the PRI is 100
  • the target PUCCH time-frequency resource is indicated as resource4; when the PRI is 101, the target PUCCH time-frequency resource is indicated as resource5; when the PRI is 110, the target PUCCH time-frequency resource is indicated as resource6 and the PRI is At 111, it indicates that the target PUCCH time-frequency resource is resource7.
  • the PUCCH time-frequency resources available to the candidate carriers in each candidate carrier subset can be preset, and there are no more than 8 available PUCCHs in each candidate carrier subset.
  • the available time-frequency resources of candidate carriers can be flexibly adjusted and configured according to scenarios and requirements.
  • the carrier switching indication includes a joint indication of the carrier indication in the downlink control information DCI and the physical uplink control channel resource indication PRI.
  • the carrier indication is used to indicate the carrier index of the target carrier
  • the physical uplink control channel resource indication PRI is used to indicate the target PUCCH time-frequency resource in the time-frequency resource set corresponding to the target carrier.
  • the carrier indicator when the carrier indicator is set to 00, it means that the carrier index of the target carrier is No. 1, that is, the target carrier is CC1, and when the carrier indicator is 01, it means that the carrier index of the target carrier is No.
  • the indication when the indication is 10, it means that the carrier index of the target carrier is No. 3, that is, the target carrier is CC3; when the carrier indication is 11, it means that the carrier index of the target carrier is No. 4, that is, the target carrier is CC4.
  • the target PUCCH time-frequency resource is indicated as resource0; when PRI is 001, the target time-frequency resource is indicated as resource1; when PRI is 010, the target PUCCH time-frequency resource is indicated as resource2; when PRI is 011, the target PUCCH is indicated
  • the time-frequency resource is resource3 and the PRI is 100
  • the target PUCCH time-frequency resource is indicated as resource4; when the PRI is 101, the target PUCCH time-frequency resource is indicated as resource5; when the PRI is 110, the target PUCCH time-frequency resource is indicated as resource6 and the PRI is At 111, it indicates that the target PUCCH time-frequency resource is resource7.
  • the available PUCCH time-frequency resources for each candidate carrier can be preset. In the case that each candidate carrier has no more than 8 available PUCCH time-frequency resources, it can be configured according to scenarios and requirements.
  • the available time-frequency resources of candidate carriers are flexibly adjusted and configured.
  • the carrier switching indication includes a joint indication of a hybrid automatic repeat request (HARQ) feedback time and a physical uplink control channel resource indication (PRI).
  • HARQ hybrid automatic repeat request
  • PRI physical uplink control channel resource indication
  • the hybrid automatic repeat request HARQ feedback time indication is used to implicitly indicate the candidate carrier subset where the target carrier is located, and the physical uplink control channel resource indication PRI is used to indicate the target carrier in the time-frequency resource set corresponding to the candidate carrier subset.
  • PUCCH time-frequency resources are used to implicitly indicate the candidate carrier subset where the target carrier is located.
  • the HARQ feedback time indication is multiplexed as a parity indication.
  • the value of the HARQ feedback time indication when the value of the HARQ feedback time indication is set to an odd number, it means that the candidate carrier subset where the target carrier is located is the first subset set1, and the HARQ feedback time indication value is When it is an even number, it means that the subset of candidate carriers where the target carrier is located is the second subset set2.
  • the value of the HARQ feedback time indication is even, it means that the subset of candidate carriers where the target carrier is located is the first subset set1
  • the value of the HARQ feedback time indication when the value of the HARQ feedback time indication is an odd number, it means that the candidate carrier subset where the target carrier is located is the second subset set2.
  • the multiplexed HARQ feedback time indication is a preset specific value indication, for example, when the value of the HARQ feedback time indication is set to ⁇ 1, 2 ⁇ , it means that the candidate carrier subset where the target carrier is located is the first subset set1, When the value of the HARQ feedback time indication is ⁇ 3, 4, 5, 6, 7, 8 ⁇ , it indicates that the candidate carrier subset where the target carrier is located is the second subset set2. It can be understood that the setting of the preset specific value can be flexibly configured according to scenarios and requirements.
  • the PUCCH time-frequency resources available to the candidate carriers in the first subset are set to ⁇ CC1 resource0, CC1 resource1, CC2 resource2, CC2 resource3, CC2 resource4, CC2 resource5, CC2 resources6, CC2 resource7 ⁇ .
  • the target PUCCH time-frequency resource is indicated as resource0; when PRI is 001, the target time-frequency resource is indicated as resource1; when PRI is 010, the target PUCCH time-frequency resource is indicated as resource2;
  • the target PUCCH time-frequency resource is resource3 and the PRI is 100, indicate that the target PUCCH time-frequency resource is resource4; when the PRI is 101, indicate that the target PUCCH time-frequency resource is resource5; when the PRI is 110, indicate that the target PUCCH time-frequency resource is resource6,
  • the PRI is 111, it indicates that the target PUCCH time-frequency resource is resource7.
  • the available PUCCH time-frequency resources for each candidate carrier can be preset. In the case that each candidate carrier has no more than 8 available PUCCH time-frequency resources, it can be configured according to scenarios and requirements.
  • the available time-frequency resources of candidate carriers are flexibly adjusted and configured.
  • the granularity of the PUCCH time-frequency resources can also be flexibly adjusted and configured according to scenarios and needs.
  • multiplexing activation indication information indicating that the multiplexing is effective may also be sent.
  • the carrier switching instruction is used to instruct the terminal device to determine the target carrier from the four candidate carriers, so that the terminal device can perform carrier switching according to the instruction, ensuring the reliability and feedback of HARQ-ACK transmission Efficiency, reduced interference, and improved load balancing.
  • the present application also provides a carrier switching device. Since the carrier switching device provided in the embodiments of the present application corresponds to the methods provided in the above several embodiments, the carrier switching The implementation of the method is also applicable to the carrier switching apparatus provided in the following embodiments, and will not be described in detail in the following embodiments.
  • FIG. 8 is a schematic structural diagram of a carrier switching device provided in an embodiment of the present application.
  • the carrier switching 800 includes: a transceiver unit 810 and a processing unit 820, wherein:
  • a transceiver unit 810 configured to receive a carrier switching instruction
  • a processing unit 820 configured to determine a target carrier of the physical uplink control channel from candidate carriers according to the carrier switching instruction
  • the carrier switching instruction includes at least one of the following:
  • the carrier indication in the downlink control information DCI is multiplexed.
  • the carrier switching instruction includes: multiplexing the physical uplink control channel resource indicator PRI;
  • the multiplexing physical uplink control channel resource indication PRI is at least 1 bit, and is used to indicate carrier switching between the two candidate carriers.
  • the carrier switching instruction includes: multiplexing the hybrid automatic repeat request HARQ feedback time indication;
  • the hybrid automatic repeat request HARQ feedback time indication is used to implicitly indicate carrier switching between the two candidate carriers.
  • the carrier switching instruction includes: multiplexing the uplink/supplementary uplink UL/SUL instruction;
  • the uplink/supplementary uplink UL/SUL indication is used to indicate carrier switching between the two candidate carriers.
  • the carrier switching instruction includes: multiplexing the physical uplink control channel resource indicator PRI;
  • the multiplexing the physical uplink control channel resource indication PRI includes first indication information and second indication information, and the first indication information is used to indicate the candidate carrier subset where the target carrier is located or the carrier of the target carrier An index, where the second indication information is used to indicate the PUCCH time-frequency resources available to the target carrier.
  • the carrier switching instruction includes: multiplexing the physical uplink control channel resource indicator PRI;
  • the physical uplink control channel resource indication PRI includes third indication information, and the third indication information is used to indicate the target carrier and the corresponding PUCCH time-frequency resource.
  • the carrier switching instruction includes: a combination of the uplink/supplementary uplink UL/SUL and the physical uplink control channel resource indication PRI instruct;
  • the uplink/supplementary uplink UL/SUL indication is used to indicate the candidate carrier subset where the target carrier is located
  • the physical uplink control channel resource indicator PRI is used to indicate the candidate carrier subset corresponding to the The target PUCCH time-frequency resource in the time-frequency resource set.
  • the carrier switching indication includes: a joint indication of the carrier indication in the downlink control information DCI and the physical uplink control channel resource indication PRI;
  • the carrier indication is used to indicate the carrier index of the target carrier
  • the physical uplink control channel resource indication PRI is used to indicate the target PUCCH time-frequency resource in the time-frequency resource set corresponding to the target carrier.
  • the carrier switching indication includes: a joint indication of the hybrid automatic repeat request HARQ feedback time and the physical uplink control channel resource indication PRI;
  • the hybrid automatic repeat request HARQ feedback time indication is used to implicitly indicate the candidate carrier subset where the target carrier is located, and the physical uplink control channel resource indication PRI is used to indicate the time corresponding to the candidate carrier subset The target PUCCH time-frequency resource in the frequency resource set.
  • the carrier switching apparatus of this embodiment can determine the target carrier of the physical uplink control channel from the candidate carriers according to the carrier switching instruction by receiving the carrier switching instruction, so that the terminal device can perform carrier switching according to the instruction, ensuring HARQ-ACK Sending reliability and feedback efficiency, reducing interference, and improving load balancing.
  • FIG. 9 is a schematic structural diagram of a network device provided in an embodiment of the present application.
  • the carrier switching device 900 includes: a transceiver unit 910, wherein:
  • a transceiver unit 910 configured to send a carrier switching instruction
  • the carrier switching instruction is used to instruct the terminal device to determine the target carrier of the physical uplink control channel from the candidate carriers;
  • the carrier switching instruction includes at least one of the following:
  • the carrier indication field in the downlink control information DCI is multiplexed.
  • the carrier switching instruction includes: multiplexing the physical uplink control channel resource indicator PRI;
  • the multiplexing physical uplink control channel resource indication PRI is at least 1 bit, and is used to indicate carrier switching between the two candidate carriers.
  • the carrier switching instruction includes: multiplexing the hybrid automatic repeat request HARQ feedback time indication;
  • the hybrid automatic repeat request HARQ feedback time indication is used to implicitly indicate carrier switching between the two candidate carriers.
  • the carrier switching instruction includes: multiplexing the uplink/supplementary uplink UL/SUL instruction;
  • the uplink/supplementary uplink UL/SUL indication is used to indicate carrier switching between the two candidate carriers.
  • the carrier switching instruction includes: multiplexing the physical uplink control channel resource indicator PRI;
  • the multiplexing the physical uplink control channel resource indication PRI includes first indication information and second indication information, and the first indication information is used to indicate the candidate carrier subset where the target carrier is located or the carrier of the target carrier An index, where the second indication information is used to indicate the PUCCH time-frequency resources available to the target carrier.
  • the carrier switching instruction includes: multiplexing the physical uplink control channel resource indicator PRI;
  • the physical uplink control channel resource indication PRI includes third indication information, and the third indication information is used to indicate the target carrier and the corresponding PUCCH time-frequency resource.
  • the carrier switching instruction includes: a combination of the uplink/supplementary uplink UL/SUL and the physical uplink control channel resource indication PRI instruct;
  • the uplink/supplementary uplink UL/SUL indication is used to indicate the candidate carrier subset where the target carrier is located
  • the physical uplink control channel resource indicator PRI is used to indicate the candidate carrier subset corresponding to the The target PUCCH time-frequency resource in the time-frequency resource set.
  • the carrier switching indication includes: a joint indication of the carrier indication in the downlink control information DCI and the physical uplink control channel resource indication PRI;
  • the carrier indication is used to indicate the carrier index of the target carrier
  • the physical uplink control channel resource indication PRI is used to indicate the target PUCCH time-frequency resource in the time-frequency resource set corresponding to the target carrier.
  • the carrier switching indication includes: a joint indication of the hybrid automatic repeat request HARQ feedback time and the physical uplink control channel resource indication PRI;
  • the hybrid automatic repeat request HARQ feedback time indication is used to implicitly indicate the candidate carrier subset where the target carrier is located, and the physical uplink control channel resource indication PRI is used to indicate the time corresponding to the candidate carrier subset The target PUCCH time-frequency resource in the frequency resource set.
  • the carrier switching apparatus of this embodiment can send a carrier switching instruction, wherein the carrier switching instruction is used to instruct the terminal device to determine the target carrier of the physical uplink control channel from the candidate carriers, so that the terminal device can perform carrier switching according to the instruction, ensuring The reliability and feedback efficiency of HARQ-ACK transmission reduce interference and improve load balancing.
  • the embodiment of the present application also proposes a communication device, including: a processor and a memory, a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the device executes the The method shown in Fig. 4 embodiment.
  • the embodiment of the present application also proposes a communication device, including: a processor and a memory, a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the device executes the The method shown in Fig. 7 embodiment.
  • the embodiment of the present application also proposes a communication device, including: a processor and an interface circuit, the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to Execute the methods shown in the embodiments in FIG. 2 to FIG. 4 .
  • the embodiment of the present application also proposes a communication device, including: a processor and an interface circuit, the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to Execute the methods shown in the embodiments shown in FIG. 5 to FIG. 7 .
  • FIG. 10 is a schematic structural diagram of another carrier switching device provided by an embodiment of the present disclosure.
  • the carrier switching device 1000 may be a network device, or a terminal device, or a chip, a chip system, or a processor that supports the network device to implement the above method, or a chip, a chip system, or a chip that supports the terminal device to implement the above method. or processor etc.
  • the device can be used to implement the methods described in the above method embodiments, and for details, refer to the descriptions in the above method embodiments.
  • the carrier switching apparatus 1000 may include one or more processors 1001 .
  • the processor 1001 may be a general purpose processor or a special purpose processor or the like. For example, it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process the communication protocol and communication data
  • the central processor can be used to control the carrier switching device (such as base station, baseband chip, terminal equipment, terminal equipment chip, DU or CU, etc.), and execute the computer Programs, which process data for computer programs.
  • the carrier switching device 1000 may further include one or more memories 1002, on which a computer program 1003 may be stored, and the processor 1001 executes the computer program 1003, so that the carrier switching device 1000 executes the method described in the foregoing method embodiments. method.
  • the computer program 1003 may be solidified in the processor 1001, and in this case, the processor 1001 may be implemented by hardware.
  • data may also be stored in the memory 1002 .
  • the carrier switching device 1000 and the memory 1002 can be set separately or integrated together.
  • the carrier switching apparatus 1000 may further include a transceiver 1005 and an antenna 1006 .
  • the transceiver 1005 may be called a transceiver unit, a transceiver, or a transceiver circuit, etc., and is used to implement a transceiver function.
  • the transceiver 1005 may include a receiver and a transmitter, and the receiver may be called a receiver or a receiving circuit for realizing a receiving function; the transmitter may be called a transmitter or a sending circuit for realizing a sending function.
  • the carrier switching apparatus 1000 may further include one or more interface circuits 1007 .
  • the interface circuit 1007 is used to receive code instructions and transmit them to the processor 1001 .
  • the processor 1001 runs code instructions to enable the carrier switching apparatus 1000 to execute the methods described in the above method embodiments.
  • the carrier switching apparatus 1000 is a terminal device: the transceiver 1005 is used to execute step 201 in FIG. 2; step 301 in FIG. 3; step 401 in FIG. 4; the processor 1001 is used to execute step 202 in FIG. 2; FIG. 3 Step 302 in FIG. 4 ; Step 402 in FIG. 4 .
  • the carrier switching apparatus 1000 is a network device, and the transceiver 1005 is used to execute step 401 in FIG. 5 ; step 601 in FIG. 6 ; and step 701 in FIG. 7 .
  • the processor 1001 may include a transceiver for implementing receiving and sending functions.
  • the transceiver may be a transceiver circuit, or an interface, or an interface circuit.
  • the transceiver circuits, interfaces or interface circuits for realizing the functions of receiving and sending can be separated or integrated together.
  • the above-mentioned transceiver circuit, interface or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface or interface circuit may be used for signal transmission or transfer.
  • the carrier switching apparatus 1000 may include a circuit, and the circuit may implement the function of sending or receiving or communicating in the foregoing method embodiments.
  • the processors and transceivers described in this disclosure can be implemented on integrated circuits (integrated circuits, ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board, PCB), electronic equipment, etc.
  • the processor and transceiver can also be fabricated using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), nMetal-oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS nMetal-oxide-semiconductor
  • PMOS P-type Metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the carrier switching device described in the above embodiments may be a network device or a terminal device, but the scope of the carrier switching device described in this disclosure is not limited thereto, and the structure of the carrier switching device may not be limited by FIGS. 8-9 .
  • the carrier switching device may be a stand-alone device or may be part of a larger device.
  • the carrier switching device can be:
  • a set of one or more ICs may also include storage components for storing data and computer programs;
  • ASIC such as modem (Modem);
  • the carrier switching device may be a chip or a chip system
  • the chip shown in FIG. 11 includes a processor 1101 and an interface 1102 .
  • the number of processors 1101 may be one or more, and the number of interfaces 1102 may be more than one.
  • Interface 1102 used to transmit code instructions to the processor
  • the processor 1101 is configured to run code instructions to execute the methods shown in FIG. 2 to FIG. 4 .
  • Interface 1102 used to transmit code instructions to the processor
  • the processor 1101 is configured to run code instructions to execute the methods shown in FIG. 5 to FIG. 7 .
  • the chip further includes a memory 1103 for storing necessary computer programs and data.
  • An embodiment of the present disclosure also provides a communication system, the system includes the carrier switching device as the terminal device and the carrier switching device as the network device in the aforementioned embodiments of Figures 8-9, or, the system includes the aforementioned embodiment of Figure 10 The carrier switching device as terminal equipment and the carrier switching device as network equipment.
  • the present disclosure also provides a readable storage medium on which instructions are stored, and when the instructions are executed by a computer, the functions of any one of the above method embodiments are realized.
  • the present disclosure also provides a computer program product, which implements the functions of any one of the above method embodiments when the computer program product is executed by a computer.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • a computer program product consists of one or more computer programs. When a computer program is loaded and executed on a computer, the processes or functions according to the embodiments of the present disclosure are generated in whole or in part.
  • a computer can be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer program can be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program can Coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (such as infrared, wireless, microwave, etc.) transmission to another website site, computer, server or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server, a data center, etc. integrated with one or more available media.
  • Available media can be magnetic media (e.g., floppy disk, hard disk, magnetic tape), optical media (e.g., high-density digital video disc (digital video disc, DVD)), or semiconductor media (e.g., solid state disk (SSD) )wait.
  • magnetic media e.g., floppy disk, hard disk, magnetic tape
  • optical media e.g., high-density digital video disc (digital video disc, DVD)
  • semiconductor media e.g., solid state disk (SSD)
  • At least one in the present disclosure can also be described as one or more, and a plurality can be two, three, four or more, and the present disclosure is not limited.
  • the technical feature is distinguished by "first”, “second”, “third”, “A”, “B”, “C” and “D”, etc.
  • the technical features described in the “first”, “second”, “third”, “A”, “B”, “C” and “D” have no sequence or order of magnitude among the technical features described.
  • each table in the present disclosure may be configured or predefined.
  • the values of the information in each table are just examples, and may be configured as other values, which are not limited in the present disclosure.
  • the corresponding relationship shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, for example, splitting, merging, and so on.
  • the names of the parameters shown in the titles of the above tables may also adopt other names understandable by the communication device, and the values or representations of the parameters may also be other values or representations understandable by the communication device.
  • other data structures can also be used, for example, arrays, queues, containers, stacks, linear tables, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables can be used wait.
  • Predefinition in the present disclosure can be understood as definition, predefinition, storage, prestorage, prenegotiation, preconfiguration, curing, or prefiring.

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Abstract

本申请实施例公开了一种载波切换方法及其装置，接收载波切换指示，根据所述载波切换指示，从候选载波中确定物理上行控制信道的目标载波，其中，所述载波切换指示包括下列中的至少一个：下行控制信息DCI中的增设字段，复用物理上行控制信道资源指示PRI，复用混合自动重传请求HARQ反馈时间指示，复用上行链路/补充上行链路UL/SUL指示，复用下行控制信息DCI中的载波指示，使得终端设备可以根据指示进行载波切换，保证了HARQ-ACK发送的可靠性和反馈效率，降低干扰，提高负载均衡。

Description

载波切换方法及装置 技术领域
本申请涉及通信技术领域，特别是指一种载波切换方法及装置。
背景技术
随着移动通信技术的不断发展，在5G(5th Generation Mobile Communication Technology，第五代移动通信技术)的背景下提出了IIoT(Industrial Internet of Things，工业物联网)和URLLC(Ultra Reliable and Low Latency Communication，超高可靠低时延通信)的课题，当PUCCH(Physical Uplink Control Channel，物理上行控制信道)资源不可用时，可以进行PUCCH载波动态切换。
发明内容
本申请第一方面实施例提出了一种载波切换方法，所述方法由终端设备执行，所述方法包括：接收载波切换指示；根据所述载波切换指示，从候选载波中确定物理上行控制信道的目标载波；
其中，所述载波切换指示包括下列中的至少一个：下行控制信息DCI中的增设字段；
复用物理上行控制信道资源指示PRI；复用混合自动重传请求HARQ反馈时间指示；
复用上行链路/补充上行链路UL/SUL指示；复用下行控制信息DCI中的载波指示。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：所述下行控制信息DCI中的增设字段；其中，所述增设字段为至少1比特，用于指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；其中，复用所述物理上行控制信道资源指示PRI为至少1比特，用于指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：复用所述混合自动重传请求HARQ反馈时间指示；其中，所述混合自动重传请求HARQ反馈时间指示，用于隐式指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：复用所述上行链路/补充上行链路UL/SUL指示；其中，所述上行链路/补充上行链路UL/SUL指示，用于指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；其中，复用所述物理上行控制信道资源指示PRI包括第一指示信息和第二指示信息，所述第一指示信息用于指示所述目标载波所在的候选载波子集或者所述目标载波的载波索引，所述第二指示信息用于指示所述目标载波可用的PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；其中，所述物理上行控制信道资源指示PRI包括第三指示信息，所述第三指示信息用于指示所述目标载波和对应的PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：所述上行链路/补充上行链路UL/SUL和所述物理上行控制信道资源指示PRI的联合指示；其中，所述上行链路/补充上行链路UL/SUL指示用于指示所述目标载波所在的候选载波子集，所述物理上行控制信道资源指示PRI用于指 示所述候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：所述下行控制信息DCI中的载波指示和所述物理上行控制信道资源指示PRI的联合指示；其中，所述载波指示用于指示所述目标载波的载波索引，所述物理上行控制信道资源指示PRI用于指示所述目标载波对应的时频资源集合中的目标PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：所述混合自动重传请求HARQ反馈时间和所述物理上行控制信道资源指示PRI的联合指示；其中，所述混合自动重传请求HARQ反馈时间指示用于隐式指示所述目标载波所在的候选载波子集，所述物理上行控制信道资源指示PRI用于指示所述候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
本申请第二方面实施例提出了一种载波切换方法，所述方法由网络设备执行，所述方法包括：发送载波切换指示；其中，所述载波切换指示用于指示终端设备从候选载波中确定物理上行控制信道的目标载波；
所述载波切换指示包括下列中的至少一个：下行控制信息DCI中的增设字段；复用物理上行控制信道资源指示PRI；复用混合自动重传请求HARQ反馈时间指示；复用上行链路/补充上行链路UL/SUL指示；复用下行控制信息DCI中的载波指示字段。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：所述下行控制信息DCI中的增设字段；其中，所述增设字段为至少1比特，用于指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；其中，复用所述物理上行控制信道资源指示PRI为至少1比特，用于指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：复用所述混合自动重传请求HARQ反馈时间指示；其中，所述混合自动重传请求HARQ反馈时间指示，用于隐式指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：复用所述上行链路/补充上行链路UL/SUL指示；其中，所述上行链路/补充上行链路UL/SUL指示，用于指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；其中，复用所述物理上行控制信道资源指示PRI包括第一指示信息和第二指示信息，所述第一指示信息用于指示所述目标载波所在的候选载波子集或者所述目标载波的载波索引，所述第二指示信息用于指示所述目标载波可用的PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；其中，所述物理上行控制信道资源指示PRI包括第三指示信息，所述第三指示信息用于指示所述目标载波和对应的PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：所述上行链路/补充上行链路UL/SUL和所述物理上行控制信道资源指示PRI的联合指示；其中，所述上行链路/补充上行链路UL/SUL指示用于指示所述目标载波所在的候选载波子集，所述物理上行控制信道资源指示PRI用于指示所述候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：所述下行控制信息DCI中的载波指示和所述物理上行控制信道资源指示PRI的联合指示；其中，所述载波指示用于指示所述目标载波的载波索引，所述物理上行控制信道资源指示PRI用于指示所述目标载波对应的时频资源集合中的目标PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：所述混合自动重传请求HARQ反馈时间和所述物理上行控制信道资源指示PRI的联合指示；其中，所述混合自动重传请求HARQ反馈时间指示用于隐式指示所述目标载波所在的候选载波子集，所述物理上行控制信道资源指示PRI用于指示所述候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
本申请第三方面实施例提出了一种载波切换装置，所述装置包括：
收发单元，用于接收载波切换指示；处理单元，用于根据所述载波切换指示，从候选载波中确定物理上行控制信道的目标载波；
其中，所述载波切换指示包括下列中的至少一个：下行控制信息DCI中的增设字段；
复用物理上行控制信道资源指示PRI；复用混合自动重传请求HARQ反馈时间指示；
复用上行链路/补充上行链路UL/SUL指示；复用下行控制信息DCI中的载波指示。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：所述下行控制信息DCI中的增设字段；其中，所述增设字段为至少1比特，用于指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；其中，复用所述物理上行控制信道资源指示PRI为至少1比特，用于指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：复用所述混合自动重传请求HARQ反馈时间指示；其中，所述混合自动重传请求HARQ反馈时间指示，用于隐式指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：复用所述上行链路/补充上行链路UL/SUL指示；其中，所述上行链路/补充上行链路UL/SUL指示，用于指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；其中，复用所述物理上行控制信道资源指示PRI包括第一指示信息和第二指示信息，所述第一指示信息用于指示所述目标载波所在的候选载波子集或者所述目标载波的载波索引，所述第二指示信息用于指示所述目标载波可用的PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；其中，所述物理上行控制信道资源指示PRI包括第三指示信息，所述第三指示信息用于指示所述目标载波和对应的PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：所述上行链路/补充上行链路UL/SUL和所述物理上行控制信道资源指示PRI的联合指示；其中，所述上行链路/补充上行链路UL/SUL指示用于指示所述目标载波所在的候选载波子集，所述物理上行控制信道资源指示PRI用于指示所述候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：所述下行控制信息DCI 中的载波指示和所述物理上行控制信道资源指示PRI的联合指示；其中，所述载波指示用于指示所述目标载波的载波索引，所述物理上行控制信道资源指示PRI用于指示所述目标载波对应的时频资源集合中的目标PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：所述混合自动重传请求HARQ反馈时间和所述物理上行控制信道资源指示PRI的联合指示；其中，所述混合自动重传请求HARQ反馈时间指示用于隐式指示所述目标载波所在的候选载波子集，所述物理上行控制信道资源指示PRI用于指示所述候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
本申请第四方面实施例提出了一种载波切换装置，所述装置包括：
收发单元，用于发送载波切换指示；其中，所述载波切换指示用于指示终端设备从候选载波中确定物理上行控制信道的目标载波；
所述载波切换指示包括下列中的至少一个：下行控制信息DCI中的增设字段；复用物理上行控制信道资源指示PRI；复用混合自动重传请求HARQ反馈时间指示；复用上行链路/补充上行链路UL/SUL指示；复用下行控制信息DCI中的载波指示字段。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：所述下行控制信息DCI中的增设字段；其中，所述增设字段为至少1比特，用于指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；其中，复用所述物理上行控制信道资源指示PRI为至少1比特，用于指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：复用所述混合自动重传请求HARQ反馈时间指示；其中，所述混合自动重传请求HARQ反馈时间指示，用于隐式指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：复用所述上行链路/补充上行链路UL/SUL指示；其中，所述上行链路/补充上行链路UL/SUL指示，用于指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；其中，复用所述物理上行控制信道资源指示PRI包括第一指示信息和第二指示信息，所述第一指示信息用于指示所述目标载波所在的候选载波子集或者所述目标载波的载波索引，所述第二指示信息用于指示所述目标载波可用的PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；其中，所述物理上行控制信道资源指示PRI包括第三指示信息，所述第三指示信息用于指示所述目标载波和对应的PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：所述上行链路/补充上行链路UL/SUL和所述物理上行控制信道资源指示PRI的联合指示；其中，所述上行链路/补充上行链路UL/SUL指示用于指示所述目标载波所在的候选载波子集，所述物理上行控制信道资源指示PRI用于指示所述候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：所述下行控制信息DCI中的载波指示和所述物理上行控制信道资源指示PRI的联合指示；其中，所述载波指示用于指示所述 目标载波的载波索引，所述物理上行控制信道资源指示PRI用于指示所述目标载波对应的时频资源集合中的目标PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：所述混合自动重传请求HARQ反馈时间和所述物理上行控制信道资源指示PRI的联合指示；其中，所述混合自动重传请求HARQ反馈时间指示用于隐式指示所述目标载波所在的候选载波子集，所述物理上行控制信道资源指示PRI用于指示所述候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
本申请第五方面实施例提出了一种通信装置，所述装置包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行上述第一方面实施例所述的载波切换方法。
本申请第六方面实施例提出了一种通信装置，所述装置包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行上述第二方面实施例所述的载波切换方法。
本申请第七方面实施例提出了一种通信装置，该装置包括处理器和接口电路，该接口电路用于接收代码指令并传输至该处理器，该处理器用于运行所述代码指令以使该装置执行上述第一方面实施例所述的载波切换方法。
本申请第八方面实施例提出了一种通信装置，该装置包括处理器和接口电路，该接口电路用于接收代码指令并传输至该处理器，该处理器用于运行所述代码指令以使该装置执行上述第二方面实施例所述的载波切换方法。
本申请第九方面实施例提出了一种计算机可读存储介质，用于存储有指令，当所述指令被执行时，使上述第一方面实施例所述的载波切换方法被实现。
本申请第十方面实施例提出了一种计算机可读存储介质，用于存储有指令，当所述指令被执行时，使上述第二方面实施例所述的载波切换方法被实现。
本申请第十一方面实施例提出了一种计算机程序，当其在计算机上运行时，使得计算机执行第一方面实施例所述的载波切换方法。
本申请第十二方面实施例提出了一种计算机程序，当其在计算机上运行时，使得计算机执行第二方面实施例所述的载波切换方法。
本申请实施例提供的一种载波切换方法及装置，通过接收载波切换指示，根据所述载波切换指示，从候选载波中确定物理上行控制信道的目标载波，其中，所述载波切换指示包括下列中的至少一个：下行控制信息DCI中的增设字段，复用物理上行控制信道资源指示PRI，复用混合自动重传请求HARQ反馈时间指示，复用上行链路/补充上行链路UL/SUL指示，复用下行控制信息DCI中的载波指示，使得终端设备可以根据指示进行载波切换，保证了HARQ-ACK发送的可靠性和反馈效率，降低干扰，提高负载均衡。
本申请附加的方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
为了更清楚地说明本申请实施例或背景技术中的技术方案，下面将对本申请实施例或背景技术中所 需要使用的附图进行说明。
图1为本申请实施例提供的一种通信系统的架构示意图；
图2是本申请实施例提供的一种载波切换方法的流程示意图；
图3是本申请实施例提供的一种载波切换方法的流程示意图；
图4是本申请实施例提供的一种载波切换方法的流程示意图；
图5是本申请实施例提供的一种载波切换方法的流程示意图；
图6是本申请实施例提供的一种载波切换方法的流程示意图；
图7是本申请实施例提供的一种载波切换方法的流程示意图；
图8是本申请实施例提供的一种载波切换装置的结构示意图；
图9是本申请实施例提供的一种载波切换装置的结构示意图；
图10是本申请实施例提供的另一种载波切换装置的结构示意图；
图11是本公开实施例提供的一种芯片的结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本申请实施例相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本申请实施例的一些方面相一致的装置和方法的例子。
在本申请实施例使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本申请实施例。在本申请实施例和所附权利要求书中所使用的单数形式的“一种”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本申请实施例可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本申请实施例范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”及“若”可以被解释成为“在……时”或“当……时”或“响应于确定”。
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的要素。下面通过参考附图描述的实施例是示例性的，旨在用于解释本申请，而不能理解为对本申请的限制。
为了更好的理解本申请实施例公开的一种载波切换方法，下面首先对本申请实施例适用的通信系统进行描述。
请参见图1，图1为本申请实施例提供的一种通信系统的架构示意图。该通信系统可包括但不限于一个网络设备和一个终端设备，图1所示的设备数量和形态仅用于举例并不构成对本申请实施例的限定，实际应用中可以包括两个或两个以上的网络设备，两个或两个以上的终端设备。图1所示的通信系统以包括一个网络设备101和一个终端设备102为例。
需要说明的是，本申请实施例的技术方案可以应用于各种通信系统。例如：长期演进(Long Term Evolution，LTE)系统、第五代移动通信系统、5G新空口系统，或者其他未来的新型移动通信系统等。
本申请实施例中的网络设备101是网络侧的一种用于发射或接收信号的实体。例如，网络设备101可以为演进型基站(Evolved NodeB，eNB)、传输点(Transmission Reception Point，TRP)、NR系统中的下一代基站(Next Generation NodeB，gNB)、其他未来移动通信系统中的基站或无线保真(Wireless Fidelity，WiFi)系统中的接入节点等。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。本申请实施例提供的网络设备可以是由集中单元(Central Unit，CU)与分布式单元(Distributed Unit，DU)组成的，其中，CU也可以称为控制单元(Control Unit)，采用CU-DU的结构可以将网络设备，例如基站的协议层拆分开，部分协议层的功能放在CU集中控制，剩下部分或全部协议层的功能分布在DU中，由CU集中控制DU。
本申请实施例中的终端设备102是用户侧的一种用于接收或发射信号的实体，如手机。终端设备也可以称为终端设备(terminal)、用户设备(user equipment，UE)、移动台(Mobile Station，MS)、移动终端设备(Mobile Terminal，MT)等。终端设备可以是具备通信功能的汽车、智能汽车、手机(Mobile Phone)、穿戴式设备、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality，VR)终端设备、增强现实(Augmented Reality，AR)终端设备、工业控制(Industrial Control)中的无线终端设备、无人驾驶(Self-Driving)中的无线终端设备、远程手术(Remote Medical Surgery)中的无线终端设备、智能电网(Smart Grid)中的无线终端设备、运输安全(Transportation Safety)中的无线终端设备、智慧城市(Smart City)中的无线终端设备、智慧家庭(Smart Home)中的无线终端设备等等。本申请的实施例对终端设备所采用的具体技术和具体设备形态不做限定。
终端设备102可以对接收到的数据进行检测纠错，并根据检测结果向网络设备101发送反馈信息，如果数据被正确接收了，则终端设备102向网络设备101发送HARQ-ACK(Hybrid Automatic Repeat Request Acknowledgement，混合自动重传请求应答)。网络设备101在接收到终端设备102反馈的HARQ-ACK之后，会继续发送下一组数据。
在相关技术中，网络设备101和终端设备102支持PUCCH动态载波切换，也就是当主小区的PUCCH时频资源不可用时，可以通过辅小区的PUCCH时频资源上的载波进行HARQ-ACK的发送。
本申请的实施例中，通过接收载波切换指示，根据所述载波切换指示，从候选载波中确定物理上行控制信道的目标载波，其中，所述载波切换指示包括下列中的至少一个：下行控制信息DCI中的增设字段，复用物理上行控制信道资源指示PRI，复用混合自动重传请求HARQ反馈时间指示，复用上行链路/补充上行链路UL/SUL指示，复用下行控制信息DCI中的载波指示，使得终端设备可以根据指示进行载波切换，保证了HARQ-ACK发送的可靠性和反馈效率，降低干扰，提高负载均衡。
可以理解的是，本申请实施例描述的通信系统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，随着系统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。
下面结合附图对本申请所提供的载波切换方法及其装置进行详细地介绍。
请参见图2，图2是本申请实施例提供的一种载波切换方法的流程示意图。需要说明的是，本申请实施例的载波切换方法由终端设备执行。如图2所示，该方法可以包括如下步骤：
步骤201，接收载波切换指示。
其中，载波切换指示包括下列中的至少一个：下行控制信息DCI中的增设字段、复用物理上行控制信道资源指示PRI、复用混合自动重传请求HARQ反馈时间指示、复用上行链路/补充上行链路 UL/SUL指示、复用下行控制信息DCI中的载波指示。
需要说明的是，该PRI、HARQ反馈时间指示、UL/SUL指示以及载波指示都是下行控制信息DCI(Downlink Control Information)格式中的已有字段，而该增设字段为本申请实施例中设定的，在DCI中新增设的字段。
其中，PRI字段长度为3比特，UL/SUL指示以及载波指示字段长度为1比特，HARQ反馈时间指示的值是表示在接收到PDSCH(Physical Downlink Shared Channel，物理下行共享信道)的数据后，需要在多长的时间内发送HARQ-ACK信息，该字段的长度为3比特，取值为{1,2,3,4,5,6,7,8}。
在本申请实施例中，终端设备可以根据载波切换指示，也就是下行控制信息DCI中的增设字段、复用物理上行控制信道资源指示PRI、复用混合自动重传请求HARQ反馈时间指示、复用上行链路/补充上行链路UL/SUL指示和复用下行控制信息DCI中的载波指示中的至少一个，来从候选载波中确定目标载波。
在一些实施例中，该载波切换指示包括DCI中的增设字段。
在一些实施例中，该载波切换指示包括复用物理上行控制信道资源指示PRI。
在一些实施例中，该载波切换指示包括复用混合自动重传请求HARQ反馈时间指示。
在一些实施例中，该载波切换指示包括复用上行链路/补充上行链路UL/SUL指示。
在一些实施例中，该载波切换指示包括上行链路/补充上行链路UL/SUL和物理上行控制信道资源指示PRI的联合指示。
在一些实施例中，该载波切换指示包括混合自动重传请求HARQ反馈时间指示和物理上行控制信道资源指示PRI的联合指示。
在一些实施例中，该载波切换指示包括下行控制信息DCI中的载波指示和物理上行控制信道资源指示PRI的联合指示。
需要说明的是，联合指示是指，联合指示中的各个指示信息都对确定目标载波起到了指示作用。
另外需要说明的是，对于复用的指示信息，比如PRI、HARQ反馈时间指示、UL/SUL指示或者载波指示，还可以设置指示该复用生效的复用生效指示信息。
可以理解的是，上述载波切换指示的方法为示例性的，还可以根据候选载波以及候选载波可用的资源，灵活选择其他的指示或者联合指示方法。
步骤202，根据载波切换指示，从候选载波中确定物理上行控制信道的目标载波。
其中，候选载波是指终端设备可以用来发送HARQ-ACK的PUCCH时频资源上的载波，目标载波是根据载波切换指示确定的，最终用来发送该HARQ-ACK的PUCCH时频资源上的载波。
可选地，候选载波的个数可以是两个或者四个。
需要说明的是，候选载波中包括原始载波，其中，原始载波是指终端设备原本打算用来发送该HARQ-ACK的PUCCH时频资源上的载波。候选载波中包括原始载波，目标载波可以是原始载波。
可选地，终端设备在根据载波切换指示，从候选载波中确定物理上行控制信道的目标载波之后还包括：在该目标载波上发送反馈信息。
综上，通过接收载波切换指示，根据所述载波切换指示，从候选载波中确定物理上行控制信道的目标载波，使得终端设备可以根据指示进行载波切换，保证了HARQ-ACK发送的可靠性和反馈效率，降低干扰，提高负载均衡。
请参见图3，图3是本申请实施例提供的一种载波切换方法的流程示意图。需要说明的是，本申请实施例的载波切换方法由终端设备执行。如图3所示，该方法可以包括如下步骤：
步骤301，接收载波切换指示。
作为第一种可能的实施方式，该载波切换指示包括下行控制信息DCI中的增设字段。
作为第二种可能的实施方式，该载波切换指示包括复用物理上行控制信道资源指示PRI。
作为第三种可能的实施方式，该载波切换指示包括复用混合自动重传请求HARQ反馈时间指示。
作为第四种可能的实施方式，该载波切换指示包括复用上行链路/补充上行链路UL/SUL指示。
步骤302，根据载波切换指示，指示在两个候选载波之间的载波切换。
作为第一种可能的实施方式，该载波切换指示包括下行控制信息DCI中的增设字段。
可选地，为了节约开销，该增设字段为1比特，根据该1比特的增设字段，指示在两个候选载波之间的载波切换。比如，设置该增设字段为0时，表示从原始载波切换到另一载波，该增设字段为1时，表示不切换，类似的，也可以设置该增设字段为1时，表示从原始载波切换到另一载波，该增设字段为0时，表示不切换。
可以理解的是，还可以设置其他长度的增设字段，比如，设置2比特的增设字段，该增设字段为00,11时，表示从原始载波切换到另一载波，该增设字段为01,10时，表示不切换等等。
作为第二种可能的实施方式，该载波切换指示包括复用物理上行控制信道资源指示PRI。
可选地，复用物理上行控制信道资源指示PRI为1比特，根据该复用的1比特PRI，指示在两个候选载波之间的载波切换。比如，设置复用的1比特PRI为3比特中的最高位，设置该最高位为0时，表示从原始载波切换到另一载波，该最高位为1时，表示不切换，类似的，也可以设置该最高位为1时，表示从原始载波切换到另一载波，该最高位为0时，表示不切换。
可以理解的是，还可以复用次高位的PRI或者最低位的PRI，用来指示在两个候选载波之间的切换。
另外，还可以设置复用2比特的PRI，该增设字段为00,01时，表示从原始载波切换到另一载波，该增设字段为10,11时，表示不切换等等。
作为第三种可能的实施方式，该载波切换指示包括复用混合自动重传请求HARQ反馈时间指示。
如前所述，混合自动重传请求HARQ反馈时间指示的值是表示在接收到PDSCH的数据后，需要在多长的时间内发送HARQ-ACK信息，该字段的长度为3比特，取值为{1,2,3,4,5,6,7,8}。因此，复用混合自动重传请求HARQ反馈时间指示来指示载波切换是隐式指示。
可选地，复用HARQ反馈时间指示为奇偶指示，比如，设置HARQ反馈时间指示取值为奇数时，表示从原始载波切换到另一载波，HARQ反馈时间指示取值为偶数时，表示不切换，类似的，也可以设置HARQ反馈时间指示取值为偶数时，表示从原始载波切换到另一载波，HARQ反馈时间指示取值为奇数时，表示不切换。
可选地，复用HARQ反馈时间指示为预设特定值指示，比如，设置HARQ反馈时间指示取值为{1,2}时，表示从原始载波切换到另一载波，HARQ反馈时间指示取值为{3,4,5,6,7,8}时，表示不切换。可以理解的是，该预设特定值的设置可以根据场景和需求进行更改，灵活配置。
作为第四种可能的实施方式，该载波切换指示包括复用上行链路/补充上行链路UL/SUL指示。
可选地，设置UL/SUL指示为0时，表示从原始载波切换到另一载波，UL/SUL指示为1时，表示 不切换，类似的，也可以设置UL/SUL指示为1时，表示从原始载波切换到另一载波，UL/SUL指示为0时，表示不切换。
需要说明的是，在本申请的实施例中，候选载波可用的PUCCH时频资源可以是预先设定好的，在根据载波切换指示进行载波切换时，同时也确定了目标载波可用的PUCCH时频资源。
另外需要说明的是，在本申请的实施例中，对于复用的PRI、HARQ反馈时间指示和UL/SUL指示，还可以设置指示该复用生效的复用生效指示信息。
综上，通过接收载波切换指示，根据载波切换指示，指示在两个候选载波之间的载波切换，使得终端设备可以根据指示进行载波切换，保证了HARQ-ACK发送的可靠性和反馈效率，降低干扰，提高负载均衡。
请参见图4，图4是本申请实施例提供的一种载波切换方法的流程示意图。需要说明的是，本申请实施例的载波切换方法由终端设备执行。如图4所示，该方法可以包括如下步骤：
步骤401，接收载波切换指示。
作为第一种可能的实施方式，该载波切换指示包括下行控制信息DCI中的增设字段。
作为第二种可能的实施方式，该载波切换指示包括复用物理上行控制信道资源指示PRI，其中，复用物理上行控制信道资源指示PRI包括1比特的第一指示信息和2比特的第二指示信息。
作为第三种可能的实施方式，该载波切换指示包括复用物理上行控制信道资源指示PRI，其中，复用物理上行控制信道资源指示PRI包括2比特的第一指示信息和1比特的第二指示信息。
作为第四种可能的实施方式，该载波切换指示包括复用物理上行控制信道资源指示PRI，其中，物理上行控制信道资源指示PRI包括第三指示信息。
作为第五种可能的实施方式，该载波切换指示包括上行链路/补充上行链路UL/SUL和物理上行控制信道资源指示PRI的联合指示。
作为第六种可能的实施方式，该载波切换指示包括下行控制信息DCI中的载波指示和物理上行控制信道资源指示PRI的联合指示。
作为第七种可能的实施方式，该载波切换指示包括混合自动重传请求HARQ反馈时间和物理上行控制信道资源指示PRI的联合指示。
步骤402，根据载波切换指示，从四个候选载波中确定目标载波。
作为第一种可能的实施方式，该载波切换指示包括下行控制信息DCI中的增设字段。
可选地，为了节约开销，该增设字段为2比特，根据该2比特的增设字段，指示目标载波的载波索引，从四个候选载波中确定目标载波。比如，设置该增设字段为00时，表示目标载波的载波索引为1号，也就是目标载波为CC1，该增设字段为01时，表示目标载波的载波索引为2号，也就是目标载波为CC2，该增设字段为10时，表示目标载波的载波索引为3号，也就是目标载波为CC3，该增设字段为11时，表示目标载波的载波索引为4号，也就是目标载波为CC4。
可以理解的是，该增设字段的长度也可以大于2比特，根据该增设字段的指示，确定出所指示的目标载波的载波索引。
作为第二种可能的实施方式，该载波切换指示包括复用物理上行控制信道资源指示PRI，其中，复用物理上行控制信道资源指示PRI包括1比特的第一指示信息和2比特的第二指示信息。
如前所述，PRI字段的长度为3比特。
可选地，该第一指示信息为3比特中的最高位，该第二指示信息为3比特中的次高位和最低位。
可以理解的是，还可以设置该第一指示信息为3比特中的最低位，该第二指示信息为3比特中的最高位和次高位。
其中，第一指示信息用于指示目标载波所在的候选载波子集，第二指示信息用于指示目标载波可用的PUCCH时频资源。其中，候选载波子集是将四个载波划分成两个候选载波子集，每个子集有两个候选载波。
进一步地，该第二指示信息指示PUCCH时频资源的资源索引。
比如，第一子集中有载波索引为1号和2号的两个候选载波，set1＝{CC1，CC2}，第二子集中有载波索引为3号和4号的两个候选载波，set2＝{CC3，CC4}。每个候选载波子集中的两个候选载波一共有最多不超过4个的可用PUCCH时频资源，比如第一子集中的候选载波可用的PUCCH时频资源设置为{CC1 PUCCH resource0，CC2 PUCCH resource1，CC2 PUCCH resource2，CC2 PUCCH resource3}，这里PUCCH resource表示的是PUCCH时频资源，resource后面的0,1,2,3为资源索引。可以设置该第一指示信息为0时，表示目标载波所在的候选载波子集为第一子集set1，该第一指示信息为1时，表示目标载波所在的候选载波子集为第二子集set2，类似的，也可以设置该第一指示信息为1时，表示目标载波所在的候选载波子集为第一子集set1，该第一指示信息为0时，表示目标载波所在的候选载波子集为第二子集set2。设置该第二指示信息为00时，指示资源索引为0，也就是目标载波CC1上的PUCCH resource0，该第二指示信息为01时，指示资源索引为1，也就是目标载波CC2上的PUCCH resource1，该第二指示信息为10时，指示资源索引为2，也就是目标载波CC2上的PUCCH resource2，该第二指示信息为11时，指示资源索引为3，也就是目标载波CC2上的PUCCH resource3。
需要说明的是，每个候选载波子集中的候选载波可用的PUCCH时频资源可以是预先设定好的，在每个候选载波子集中的两个候选载波一共有最多不超过4个的可用PUCCH时频资源的情况下，根据场景和需求可以对候选载波的可用时频资源进行灵活地调整和配置。
作为第三种可能的实施方式，该载波切换指示包括复用物理上行控制信道资源指示PRI，其中，复用物理上行控制信道资源指示PRI包括2比特的第一指示信息和1比特的第二指示信息。
可选地，该第一指示信息为3比特中的最高位和次高位，该第二指示信息为3比特中的最低位。
可以理解的是，还可以设置该第一指示信息为3比特中的次高位和最低位，该第二指示信息为3比特中的最高位。
其中，第一指示信息用于指示目标载波的载波索引，第二指示信息用于指示目标载波可用的PUCCH时频资源。
需要说明的是，每个候选载波有最多不超过2个的可用PUCCH时频资源。
比如，设置第一指示信息为00时，表示目标载波的载波索引为1号，也就是目标载波为CC1，第一指示信息为01时，表示目标载波的载波索引为2号，也就是目标载波为CC2，第一指示信息为10时，表示目标载波的载波索引为3号，也就是目标载波为CC3，第一指示信息为11时，表示目标载波的载波索引为4号，也就是目标载波为CC4。设置第二指示信息为0时，表示目标载波可用的时频资源为PUCCH resource0，第二指示信息为1时，表示目标载波可用的时频资源为PUCCH resource1。可以理解的是，不同的载波对应的PUCCH resource0可以是相同的，也可以是不同的。
需要说明的是，每个候选载波可用的PUCCH时频资源可以是预先设定好的，在每个候选载波一共有最多不超过2个的可用PUCCH时频资源的情况下，根据场景和需求可以对候选载波的可用时频资源进行灵活地调整和配置。
作为第四种可能的实施方式，该载波切换指示包括复用物理上行控制信道资源指示PRI，其中，物理上行控制信道资源指示PRI包括第三指示信息。
可选地，该第三指示信息为3比特。
其中，该第三指示信息用于指示所述目标载波和对应的PUCCH时频资源。
需要说明的是，四个候选载波一共有最多不超过8个的可用PUCCH时频资源。四个候选载波和可用的PUCCH时频资源可以构成一个新的载波-资源集合，比如{CC1 resource0，CC2 resource1，CC2 resource2，CC2 resource3，CC3 resource4，CC3 resource5，CC3 resources6，CC4 resource7}。
第三指示信息用于指示所述目标载波和目标载波对应的PUCCH时频资源，比如，设置第三指示信息为000时，指示目标载波为CC1，对应的PUCCH时频资源为resource0，第三指示信息为001时，指示目标载波为CC2，对应的PUCCH时频资源为resource1，第三指示信息为010时，指示目标载波为CC2，对应的PUCCH时频资源为resource2，第三指示信息为011时，指示目标载波为CC2，对应的PUCCH时频资源为resource3，第三指示信息为100时，指示目标载波为CC3，对应的PUCCH时频资源为resource4，第三指示信息为101时，指示目标载波为CC3，对应的PUCCH时频资源为resource5，第三指示信息为110时，指示目标载波为CC3，对应的PUCCH时频资源为resource6，第三指示信息为111时，指示目标载波为CC4，对应的PUCCH时频资源为resource7。
需要说明的是，候选载波和可用的PUCCH时频资源可以是预先设定好的，在四个候选载波一共有最多不超过8个的可用PUCCH时频资源的情况下，根据场景和需求可以对候选载波的可用时频资源进行灵活地调整和配置。
作为第五种可能的实施方式，该载波切换指示包括上行链路/补充上行链路UL/SUL和物理上行控制信道资源指示PRI的联合指示。
其中，上行链路/补充上行链路UL/SUL指示用于指示目标载波所在的候选载波子集，物理上行控制信道资源指示PRI用于指示该候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
其中，候选载波子集是将四个载波划分成两个候选载波子集，每个子集有两个候选载波。
需要说明的是，每个候选载波子集对应的时频资源集合中一共有不超过8个PUCCH时频资源。
比如，第一子集中有载波索引为1号和2号的两个候选载波，set1＝{CC1，CC2}，第二子集中有载波索引为3号和4号的两个候选载波，set2＝{CC3，CC4}。每个候选载波子集对应的时频资源集合中一共有最多不超过8个PUCCH时频资源，比如第一子集中的候选载波可用的PUCCH时频资源设置为{CC1 resource0，CC1 resource1，CC2 resource2，CC2 resource3，CC2 resource4，CC2 resource5，CC2 resources6，CC2 resource7}。可以设置UL/SUL指示为0时，表示目标载波所在的候选载波子集为第一子集set1，UL/SUL指示为1时，表示目标载波所在的候选载波子集为第二子集set2，类似的，也可以设置UL/SUL指示为1时，表示目标载波所在的候选载波子集为第一子集set1，UL/SUL指示为0时，表示目标载波所在的候选载波子集为第二子集set2。设置PRI为000时，指示目标PUCCH时频资源为resource0，PRI为001时，指示目标时频资源为resource1，PRI为010时，指示目标PUCCH时频资源为resource2，PRI为011时，指示目标PUCCH时频资源为resource3，PRI为100时，指示目标PUCCH 时频资源为resource4，PRI为101时，指示目标PUCCH时频资源为resource5，PRI为110时，指示目标PUCCH时频资源为resource6，PRI为111时，指示目标PUCCH时频资源为resource7。
需要说明的是，每个候选载波子集中的候选载波可用的PUCCH时频资源可以是预先设定好的，在每个候选载波子集中的两个候选载波一共有最多不超过8个的可用PUCCH时频资源的情况下，根据场景和需求可以对候选载波的可用时频资源进行灵活地调整和配置。
作为第六种可能的实施方式，该载波切换指示包括下行控制信息DCI中的载波指示和物理上行控制信道资源指示PRI的联合指示。
其中，载波指示用于指示所述目标载波的载波索引，物理上行控制信道资源指示PRI用于指示所述目标载波对应的时频资源集合中的目标PUCCH时频资源。
需要说明的是，目标载波对应的时频资源集合中一共有不超过8个PUCCH时频资源。
比如，设置载波指示为00时，表示目标载波的载波索引为1号，也就是目标载波为CC1，载波指示为01时，表示目标载波的载波索引为2号，也就是目标载波为CC2，载波指示为10时，表示目标载波的载波索引为3号，也就是目标载波为CC3，载波指示为11时，表示目标载波的载波索引为4号，也就是目标载波为CC4。设置PRI为000时，指示目标PUCCH时频资源为resource0，PRI为001时，指示目标时频资源为resource1，PRI为010时，指示目标PUCCH时频资源为resource2，PRI为011时，指示目标PUCCH时频资源为resource3，PRI为100时，指示目标PUCCH时频资源为resource4，PRI为101时，指示目标PUCCH时频资源为resource5，PRI为110时，指示目标PUCCH时频资源为resource6，PRI为111时，指示目标PUCCH时频资源为resource7。
需要说明的是，每个候选载波可用的PUCCH时频资源可以是预先设定好的，在每个候选载波有最多不超过8个的可用PUCCH时频资源的情况下，根据场景和需求可以对候选载波的可用时频资源进行灵活地调整和配置。
作为第七种可能的实施方式，该载波切换指示包括混合自动重传请求HARQ反馈时间和物理上行控制信道资源指示PRI的联合指示。
其中，混合自动重传请求HARQ反馈时间指示用于隐式指示所述目标载波所在的候选载波子集，物理上行控制信道资源指示PRI用于指示候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
其中，候选载波子集是将四个载波划分成两个候选载波子集，每个子集有两个候选载波。比如，第一子集中有载波索引为1号和2号的两个候选载波，set1＝{CC1，CC2}，第二子集中有载波索引为3号和4号的两个候选载波，set2＝{CC3，CC4}。
可选地，复用HARQ反馈时间指示为奇偶指示，比如，设置HARQ反馈时间指示取值为奇数时，表示目标载波所在的候选载波子集为第一子集set1，HARQ反馈时间指示取值为偶数时，表示目标载波所在的候选载波子集为第二子集set2，类似的，也可以设置HARQ反馈时间指示取值为偶数时，表示目标载波所在的候选载波子集为第一子集set1，HARQ反馈时间指示取值为奇数时，表示目标载波所在的候选载波子集为第二子集set2。
可选地，复用HARQ反馈时间指示为预设特定值指示，比如，设置HARQ反馈时间指示取值为{1,2}时，表示目标载波所在的候选载波子集为第一子集set1，HARQ反馈时间指示取值为{3,4,5,6,7,8}时，表示目标载波所在的候选载波子集为第二子集set2。可以理解的是，该预设特定值的设置可以根据场景和需求进行灵活配置。
需要说明的是，每个候选载波子集对应的时频资源集合中一共有不超过8个PUCCH时频资源，比如第一子集中的候选载波可用的PUCCH时频资源设置为{CC1 resource0，CC1 resource1，CC2 resource2，CC2 resource3，CC2 resource4，CC2 resource5，CC2 resources6，CC2 resource7}。
比如，设置PRI为000时，指示目标PUCCH时频资源为resource0，PRI为001时，指示目标时频资源为resource1，PRI为010时，指示目标PUCCH时频资源为resource2，PRI为011时，指示目标PUCCH时频资源为resource3，PRI为100时，指示目标PUCCH时频资源为resource4，PRI为101时，指示目标PUCCH时频资源为resource5，PRI为110时，指示目标PUCCH时频资源为resource6，PRI为111时，指示目标PUCCH时频资源为resource7。
需要说明的是，每个候选载波可用的PUCCH时频资源可以是预先设定好的，在每个候选载波有最多不超过8个的可用PUCCH时频资源的情况下，根据场景和需求可以对候选载波的可用时频资源进行灵活地调整和配置。
可以理解的是，在本申请的实施例中，PUCCH时频资源的颗粒度的大小也可以根据场景和需要进行灵活地调整和配置。
另外需要说明的是，在本申请的实施例中，对于复用的PRI、HARQ反馈时间指示、UL/SUL指示和载波指示，还可以设置指示该复用生效的复用生效指示信息。
综上，通过接收载波切换指示，根据载波切换指示，从四个候选载波中确定目标载波，使得终端设备可以根据指示进行载波切换，保证了HARQ-ACK发送的可靠性和反馈效率，降低干扰，提高负载均衡。
请参见图5，图5是本申请实施例提供的一种载波切换方法的流程示意图。需要说明的是，本申请实施例的载波切换方法由网络设备执行。如图5所示，该方法可以包括如下步骤：
步骤501，发送载波切换指示，其中，载波切换指示用于指示终端设备从候选载波中确定物理上行控制信道的目标载波。
其中，该载波切换指示包括下列中的至少一个：下行控制信息DCI中的增设字段；复用物理上行控制信道资源指示PRI；复用混合自动重传请求HARQ反馈时间指示；复用上行链路/补充上行链路UL/SUL指示；复用下行控制信息DCI中的载波指示字段。
需要说明的是，该PRI、HARQ反馈时间指示、UL/SUL指示以及载波指示都是下行控制信息DCI(Downlink Control Information)格式中的已有字段，而该增设字段为本申请实施例中设定的，在DCI中新增设的字段。
其中，PRI字段长度为3比特，UL/SUL指示以及载波指示字段长度为1比特，HARQ反馈时间指示的值是表示在接收到PDSCH(Physical Downlink Shared Channel，物理下行共享信道)的数据后，需要在多长的时间内发送HARQ-ACK信息，该字段的长度为3比特，取值为{1,2,3,4,5,6,7,8}。
在本申请实施例中，终端设备可以根据载波切换指示，也就是下行控制信息DCI中的增设字段、复用物理上行控制信道资源指示PRI、复用混合自动重传请求HARQ反馈时间指示、复用上行链路/补充上行链路UL/SUL指示和复用下行控制信息DCI中的载波指示中的至少一个，来从候选载波中确定目标载波。
在一些实施例中，该载波切换指示包括DCI中的增设字段。
在一些实施例中，该载波切换指示包括复用物理上行控制信道资源指示PRI。
在一些实施例中，该载波切换指示包括复用混合自动重传请求HARQ反馈时间指示。
在一些实施例中，该载波切换指示包括复用上行链路/补充上行链路UL/SUL指示。
在一些实施例中，该载波切换指示包括上行链路/补充上行链路UL/SUL和物理上行控制信道资源指示PRI的联合指示。
在一些实施例中，该载波切换指示包括混合自动重传请求HARQ反馈时间指示和物理上行控制信道资源指示PRI的联合指示。
在一些实施例中，该载波切换指示包括下行控制信息DCI中的载波指示和物理上行控制信道资源指示PRI的联合指示。
需要说明的是，联合指示是指，联合指示中的各个指示信息都对确定目标载波起到了指示作用。
另外需要说明的是，对于复用的指示信息，比如PRI、HARQ反馈时间指示、UL/SUL指示或者载波指示，还可以发送指示该复用生效的复用生效指示信息。
可以理解的是，上述载波切换指示的方法为示例性的，还可以根据候选载波以及候选载波可用的资源，灵活选择其他的指示或者联合指示方法。
其中，候选载波是指终端设备可以用来发送HARQ-ACK的PUCCH时频资源上的载波，目标载波是根据载波切换指示确定的，最终用来发送该HARQ-ACK的PUCCH时频资源上的载波。
可选地，候选载波的个数可以是两个或者四个。
需要说明的是，候选载波中包括原始载波，其中，原始载波是指终端设备原本打算用来发送该HARQ-ACK的PUCCH时频资源上的载波。候选载波中包括原始载波，目标载波可以是原始载波。
可选地，终端设备在根据载波切换指示，从候选载波中确定物理上行控制信道的目标载波之后还包括：在该目标载波上发送反馈信息。
综上，通过发送载波切换指示，其中，载波切换指示用于指示终端设备从候选载波中确定物理上行控制信道的目标载波，使得终端设备可以根据指示进行载波切换，＝保证了HARQ-ACK发送的可靠性和反馈效率，降低干扰，提高负载均衡。
请参见图6，图6是本申请实施例提供的一种载波切换方法的流程示意图。需要说明的是，本申请实施例的载波切换方法由网络设备执行。如图6所示，该方法可以包括如下步骤：
步骤601，发送载波切换指示，其中，载波切换指示用于指示终端设备在两个候选载波之间的载波切换。
作为第一种可能的实施方式，该载波切换指示包括下行控制信息DCI中的增设字段。
可选地，为了节约开销，该增设字段为1比特，根据该1比特的增设字段，指示在两个候选载波之间的载波切换。比如，设置该增设字段为0时，表示从原始载波切换到另一载波，该增设字段为1时，表示不切换，类似的，也可以设置该增设字段为1时，表示从原始载波切换到另一载波，该增设字段为0时，表示不切换。
可以理解的是，还可以设置其他长度的增设字段，比如，设置2比特的增设字段，该增设字段为00,11时，表示从原始载波切换到另一载波，该增设字段为01,10时，表示不切换等等。
作为第二种可能的实施方式，该载波切换指示包括复用物理上行控制信道资源指示PRI。
可选地，复用物理上行控制信道资源指示PRI为1比特，根据该复用的1比特PRI，指示在两个候选载波之间的载波切换。比如，设置复用的1比特PRI为3比特中的最高位，设置该最高位为0时，表示从原始载波切换到另一载波，该最高位为1时，表示不切换，类似的，也可以设置该最高位为1时，表示从原始载波切换到另一载波，该最高位为0时，表示不切换。
可以理解的是，还可以复用次高位的PRI或者最低位的PRI，用来指示在两个候选载波之间的切换。
另外，还可以设置复用2比特的PRI，该增设字段为00,01时，表示从原始载波切换到另一载波，该增设字段为10,11时，表示不切换等等。
作为第三种可能的实施方式，该载波切换指示包括复用混合自动重传请求HARQ反馈时间指示。
如前所述，混合自动重传请求HARQ反馈时间指示的值是表示在接收到PDSCH的数据后，需要在多长的时间内发送HARQ-ACK信息，该字段的长度为3比特，取值为{1,2,3,4,5,6,7,8}。因此，复用混合自动重传请求HARQ反馈时间指示来指示载波切换是隐式指示。
可选地，复用HARQ反馈时间指示为奇偶指示，比如，设置HARQ反馈时间指示取值为奇数时，表示从原始载波切换到另一载波，HARQ反馈时间指示取值为偶数时，表示不切换，类似的，也可以设置HARQ反馈时间指示取值为偶数时，表示从原始载波切换到另一载波，HARQ反馈时间指示取值为奇数时，表示不切换。
可选地，复用HARQ反馈时间指示为预设特定值指示，比如，设置HARQ反馈时间指示取值为{1,2}时，表示从原始载波切换到另一载波，HARQ反馈时间指示取值为{3,4,5,6,7,8}时，表示不切换。可以理解的是，该预设特定值的设置可以根据场景和需求进行更改，灵活配置。
作为第四种可能的实施方式，该载波切换指示包括复用上行链路/补充上行链路UL/SUL指示。
可选地，设置UL/SUL指示为0时，表示从原始载波切换到另一载波，UL/SUL指示为1时，表示不切换，类似的，也可以设置UL/SUL指示为1时，表示从原始载波切换到另一载波，UL/SUL指示为0时，表示不切换。
需要说明的是，在本申请的实施例中，候选载波可用的PUCCH时频资源可以是预先设定好的，在根据载波切换指示进行载波切换时，同时也确定了目标载波可用的PUCCH时频资源。
另外需要说明的是，在本申请的实施例中，对于复用的PRI、HARQ反馈时间指示和UL/SUL指示，还可以发送指示该复用生效的复用生效指示信息。
综上，通过发送载波切换指示，其中，载波切换指示用于指示终端设备在两个候选载波之间的载波切换，使得终端设备可以根据指示进行载波切换，保证了HARQ-ACK发送的可靠性和反馈效率，降低干扰，提高负载均衡。
请参见图7，图7是本申请实施例提供的一种载波切换方法的流程示意图。需要说明的是，本申请实施例的载波切换方法由网络设备执行。如图7所示，该方法可以包括如下步骤：
步骤701，发送载波切换指示，其中，载波切换指示用于指示终端设备从四个候选载波中确定目标载波。
作为第一种可能的实施方式，该载波切换指示包括下行控制信息DCI中的增设字段。
可选地，为了节约开销，该增设字段为2比特，根据该2比特的增设字段，指示目标载波的载波索引，从四个候选载波中确定目标载波。比如，设置该增设字段为00时，表示目标载波的载波索引为1 号，也就是目标载波为CC1，该增设字段为01时，表示目标载波的载波索引为2号，也就是目标载波为CC2，该增设字段为10时，表示目标载波的载波索引为3号，也就是目标载波为CC3，该增设字段为11时，表示目标载波的载波索引为4号，也就是目标载波为CC4。
可以理解的是，该增设字段的长度也可以大于2比特，根据该增设字段的指示，确定出所指示的目标载波的载波索引。
作为第二种可能的实施方式，该载波切换指示包括复用物理上行控制信道资源指示PRI，其中，复用物理上行控制信道资源指示PRI包括1比特的第一指示信息和2比特的第二指示信息。
如前所述，PRI字段的长度为3比特。
可选地，该第一指示信息为3比特中的最高位，该第二指示信息为3比特中的次高位和最低位。
可以理解的是，还可以设置该第一指示信息为3比特中的最低位，该第二指示信息为3比特中的最高位和次高位。
其中，第一指示信息用于指示目标载波所在的候选载波子集，第二指示信息用于指示目标载波可用的PUCCH时频资源。其中，候选载波子集是将四个载波划分成两个候选载波子集，每个子集有两个候选载波。
进一步地，该第二指示信息指示PUCCH时频资源的资源索引。
比如，第一子集中有载波索引为1号和2号的两个候选载波，set1＝{CC1，CC2}，第二子集中有载波索引为3号和4号的两个候选载波，set2＝{CC3，CC4}。每个候选载波子集中的两个候选载波一共有最多不超过4个的可用PUCCH时频资源，比如第一子集中的候选载波可用的PUCCH时频资源设置为{CC1 PUCCH resource0，CC2 PUCCH resource1，CC2 PUCCH resource2，CC2 PUCCH resource3}，这里PUCCH resource表示的是PUCCH时频资源，resource后面的0,1,2,3为资源索引。可以设置该第一指示信息为0时，表示目标载波所在的候选载波子集为第一子集set1，该第一指示信息为1时，表示目标载波所在的候选载波子集为第二子集set2，类似的，也可以设置该第一指示信息为1时，表示目标载波所在的候选载波子集为第一子集set1，该第一指示信息为0时，表示目标载波所在的候选载波子集为第二子集set2。设置该第二指示信息为00时，指示资源索引为0，也就是目标载波CC1上的PUCCH resource0，该第二指示信息为01时，指示资源索引为1，也就是目标载波CC2上的PUCCH resource1，该第二指示信息为10时，指示资源索引为2，也就是目标载波CC3上的PUCCH resource2，该第二指示信息为11时，指示资源索引为3，也就是目标载波CC4上的PUCCH resource3。
需要说明的是，每个候选载波子集中的候选载波可用的PUCCH时频资源可以是预先设定好的，在每个候选载波子集中的两个候选载波一共有最多不超过4个的可用PUCCH时频资源的情况下，根据场景和需求可以对候选载波的可用时频资源进行灵活地调整和配置。
作为第三种可能的实施方式，该载波切换指示包括复用物理上行控制信道资源指示PRI，其中，复用物理上行控制信道资源指示PRI包括2比特的第一指示信息和1比特的第二指示信息。
可选地，该第一指示信息为3比特中的最高位和次高位，该第二指示信息为3比特中的最低位。
可以理解的是，还可以设置该第一指示信息为3比特中的次高位和最低位，该第二指示信息为3比特中的最高位。
其中，第一指示信息用于指示目标载波的载波索引，第二指示信息用于指示目标载波可用的PUCCH时频资源。
需要说明的是，每个候选载波有最多不超过2个的可用PUCCH时频资源。
比如，设置第一指示信息为00时，表示目标载波的载波索引为1号，也就是目标载波为CC1，第一指示信息为01时，表示目标载波的载波索引为2号，也就是目标载波为CC2，第一指示信息为10时，表示目标载波的载波索引为3号，也就是目标载波为CC3，第一指示信息为11时，表示目标载波的载波索引为4号，也就是目标载波为CC4。设置第二指示信息为0时，表示目标载波可用的时频资源为PUCCH resource0，第二指示信息为1时，表示目标载波可用的时频资源为PUCCH resource1。可以理解的是，不同的载波对应的PUCCH resource0可以是相同的，也可以是不同的。
需要说明的是，每个候选载波可用的PUCCH时频资源可以是预先设定好的，在每个候选载波一共有最多不超过2个的可用PUCCH时频资源的情况下，根据场景和需求可以对候选载波的可用时频资源进行灵活地调整和配置。
作为第四种可能的实施方式，该载波切换指示包括复用物理上行控制信道资源指示PRI，其中，物理上行控制信道资源指示PRI包括第三指示信息。
可选地，该第三指示信息为3比特。
其中，该第三指示信息用于指示所述目标载波和对应的PUCCH时频资源。
需要说明的是，四个候选载波一共有最多不超过8个的可用PUCCH时频资源。四个候选载波和可用的PUCCH时频资源可以构成一个新的载波-资源集合，比如{CC1 resource0，CC2 resource1，CC2 resource2，CC2 resource3，CC3 resource4，CC3 resource5，CC3 resources6，CC4 resource7}。
第三指示信息用于指示所述目标载波和目标载波对应的PUCCH时频资源，比如，设置第三指示信息为000时，指示目标载波为CC1，对应的PUCCH时频资源为resource0，第三指示信息为001时，指示目标载波为CC2，对应的PUCCH时频资源为resource1，第三指示信息为010时，指示目标载波为CC2，对应的PUCCH时频资源为resource2，第三指示信息为011时，指示目标载波为CC2，对应的PUCCH时频资源为resource3，第三指示信息为100时，指示目标载波为CC3，对应的PUCCH时频资源为resource4，第三指示信息为101时，指示目标载波为CC3，对应的PUCCH时频资源为resource5，第三指示信息为110时，指示目标载波为CC3，对应的PUCCH时频资源为resource6，第三指示信息为111时，指示目标载波为CC4，对应的PUCCH时频资源为resource7。
需要说明的是，候选载波和可用的PUCCH时频资源可以是预先设定好的，在四个候选载波一共有最多不超过8个的可用PUCCH时频资源的情况下，根据场景和需求可以对候选载波的可用时频资源进行灵活地调整和配置。
作为第五种可能的实施方式，该载波切换指示包括上行链路/补充上行链路UL/SUL和物理上行控制信道资源指示PRI的联合指示。
其中，上行链路/补充上行链路UL/SUL指示用于指示目标载波所在的候选载波子集，物理上行控制信道资源指示PRI用于指示该候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
其中，候选载波子集是将四个载波划分成两个候选载波子集，每个子集有两个候选载波。
需要说明的是，每个候选载波子集对应的时频资源集合中一共有不超过8个PUCCH时频资源。
比如，第一子集中有载波索引为1号和2号的两个候选载波，set1＝{CC1，CC2}，第二子集中有载波索引为3号和4号的两个候选载波，set2＝{CC3，CC4}。每个候选载波子集对应的时频资源集合中一共有最多不超过8个PUCCH时频资源，比如第一子集中的候选载波可用的PUCCH时频资源设置为 {CC1 resource0，CC1 resource1，CC2 resource2，CC2 resource3，CC2 resource4，CC2 resource5，CC2 resources6，CC2 resource7}。可以设置UL/SUL指示为0时，表示目标载波所在的候选载波子集为第一子集set1，UL/SUL指示为1时，表示目标载波所在的候选载波子集为第二子集set2，类似的，也可以设置UL/SUL指示为1时，表示目标载波所在的候选载波子集为第一子集set1，UL/SUL指示为0时，表示目标载波所在的候选载波子集为第二子集set2。设置PRI为000时，指示目标PUCCH时频资源为resource0，PRI为001时，指示目标时频资源为resource1，PRI为010时，指示目标PUCCH时频资源为resource2，PRI为011时，指示目标PUCCH时频资源为resource3，PRI为100时，指示目标PUCCH时频资源为resource4，PRI为101时，指示目标PUCCH时频资源为resource5，PRI为110时，指示目标PUCCH时频资源为resource6，PRI为111时，指示目标PUCCH时频资源为resource7。
需要说明的是，每个候选载波子集中的候选载波可用的PUCCH时频资源可以是预先设定好的，在每个候选载波子集中的两个候选载波一共有最多不超过8个的可用PUCCH时频资源的情况下，根据场景和需求可以对候选载波的可用时频资源进行灵活地调整和配置。
作为第六种可能的实施方式，该载波切换指示包括下行控制信息DCI中的载波指示和物理上行控制信道资源指示PRI的联合指示。
其中，载波指示用于指示所述目标载波的载波索引，物理上行控制信道资源指示PRI用于指示所述目标载波对应的时频资源集合中的目标PUCCH时频资源。
需要说明的是，目标载波对应的时频资源集合中一共有不超过8个PUCCH时频资源。
比如，设置载波指示为00时，表示目标载波的载波索引为1号，也就是目标载波为CC1，载波指示为01时，表示目标载波的载波索引为2号，也就是目标载波为CC2，载波指示为10时，表示目标载波的载波索引为3号，也就是目标载波为CC3，载波指示为11时，表示目标载波的载波索引为4号，也就是目标载波为CC4。设置PRI为000时，指示目标PUCCH时频资源为resource0，PRI为001时，指示目标时频资源为resource1，PRI为010时，指示目标PUCCH时频资源为resource2，PRI为011时，指示目标PUCCH时频资源为resource3，PRI为100时，指示目标PUCCH时频资源为resource4，PRI为101时，指示目标PUCCH时频资源为resource5，PRI为110时，指示目标PUCCH时频资源为resource6，PRI为111时，指示目标PUCCH时频资源为resource7。
需要说明的是，每个候选载波可用的PUCCH时频资源可以是预先设定好的，在每个候选载波有最多不超过8个的可用PUCCH时频资源的情况下，根据场景和需求可以对候选载波的可用时频资源进行灵活地调整和配置。
作为第七种可能的实施方式，该载波切换指示包括混合自动重传请求HARQ反馈时间和物理上行控制信道资源指示PRI的联合指示。
其中，混合自动重传请求HARQ反馈时间指示用于隐式指示所述目标载波所在的候选载波子集，物理上行控制信道资源指示PRI用于指示候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
其中，候选载波子集是将四个载波划分成两个候选载波子集，每个子集有两个候选载波。比如，第一子集中有载波索引为1号和2号的两个候选载波，set1＝{CC1，CC2}，第二子集中有载波索引为3号和4号的两个候选载波，set2＝{CC3，CC4}。
可选地，复用HARQ反馈时间指示为奇偶指示，比如，设置HARQ反馈时间指示取值为奇数时，表示目标载波所在的候选载波子集为第一子集set1，HARQ反馈时间指示取值为偶数时，表示目标载波 所在的候选载波子集为第二子集set2，类似的，也可以设置HARQ反馈时间指示取值为偶数时，表示目标载波所在的候选载波子集为第一子集set1，HARQ反馈时间指示取值为奇数时，表示目标载波所在的候选载波子集为第二子集set2。
可选地，复用HARQ反馈时间指示为预设特定值指示，比如，设置HARQ反馈时间指示取值为{1,2}时，表示目标载波所在的候选载波子集为第一子集set1，HARQ反馈时间指示取值为{3,4,5,6,7,8}时，表示目标载波所在的候选载波子集为第二子集set2。可以理解的是，该预设特定值的设置可以根据场景和需求进行灵活配置。
需要说明的是，每个候选载波子集对应的时频资源集合中一共有不超过8个PUCCH时频资源，比如第一子集中的候选载波可用的PUCCH时频资源设置为{CC1 resource0，CC1 resource1，CC2 resource2，CC2 resource3，CC2 resource4，CC2 resource5，CC2 resources6，CC2 resource7}。
比如，设置PRI为000时，指示目标PUCCH时频资源为resource0，PRI为001时，指示目标时频资源为resource1，PRI为010时，指示目标PUCCH时频资源为resource2，PRI为011时，指示目标PUCCH时频资源为resource3，PRI为100时，指示目标PUCCH时频资源为resource4，PRI为101时，指示目标PUCCH时频资源为resource5，PRI为110时，指示目标PUCCH时频资源为resource6，PRI为111时，指示目标PUCCH时频资源为resource7。
需要说明的是，每个候选载波可用的PUCCH时频资源可以是预先设定好的，在每个候选载波有最多不超过8个的可用PUCCH时频资源的情况下，根据场景和需求可以对候选载波的可用时频资源进行灵活地调整和配置。
可以理解的是，在本申请的实施例中，PUCCH时频资源的颗粒度的大小也可以根据场景和需要进行灵活地调整和配置。
另外需要说明的是，对于复用的PRI、HARQ反馈时间指示、UL/SUL指示和载波指示，还可以发送指示该复用生效的复用生效指示信息。
综上，通过发送载波切换指示，其中，载波切换指示用于指示终端设备从四个候选载波中确定目标载波，使得终端设备可以根据指示进行载波切换，保证了HARQ-ACK发送的可靠性和反馈效率，降低干扰，提高负载均衡。
与上述几种实施例提供的载波切换方法相对应，本申请还提供一种载波切换装置，由于本申请实施例提供的载波切换装置与上述几种实施例提供的方法相对应，因此在载波切换方法的实施方式也适用于下述实施例提供的载波切换装置，在下述实施例中不再详细描述。
请参见图8，图8为本申请实施例提供的一种载波切换装置的结构示意图。
如图8所示，该载波切换800包括：收发单元810和处理单元820，其中：
收发单元810，用于接收载波切换指示；
处理单元820，用于根据所述载波切换指示，从候选载波中确定物理上行控制信道的目标载波；
其中，所述载波切换指示包括下列中的至少一个：
下行控制信息DCI中的增设字段；
复用物理上行控制信道资源指示PRI；
复用混合自动重传请求HARQ反馈时间指示；
复用上行链路/补充上行链路UL/SUL指示；
复用下行控制信息DCI中的载波指示。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；
其中，复用所述物理上行控制信道资源指示PRI为至少1比特，用于指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：复用所述混合自动重传请求HARQ反馈时间指示；
其中，所述混合自动重传请求HARQ反馈时间指示，用于隐式指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：复用所述上行链路/补充上行链路UL/SUL指示；
其中，所述上行链路/补充上行链路UL/SUL指示，用于指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；
其中，复用所述物理上行控制信道资源指示PRI包括第一指示信息和第二指示信息，所述第一指示信息用于指示所述目标载波所在的候选载波子集或者所述目标载波的载波索引，所述第二指示信息用于指示所述目标载波可用的PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；
其中，所述物理上行控制信道资源指示PRI包括第三指示信息，所述第三指示信息用于指示所述目标载波和对应的PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：所述上行链路/补充上行链路UL/SUL和所述物理上行控制信道资源指示PRI的联合指示；
其中，所述上行链路/补充上行链路UL/SUL指示用于指示所述目标载波所在的候选载波子集，所述物理上行控制信道资源指示PRI用于指示所述候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：所述下行控制信息DCI中的载波指示和所述物理上行控制信道资源指示PRI的联合指示；
其中，所述载波指示用于指示所述目标载波的载波索引，所述物理上行控制信道资源指示PRI用于指示所述目标载波对应的时频资源集合中的目标PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：所述混合自动重传请求HARQ反馈时间和所述物理上行控制信道资源指示PRI的联合指示；
其中，所述混合自动重传请求HARQ反馈时间指示用于隐式指示所述目标载波所在的候选载波子集，所述物理上行控制信道资源指示PRI用于指示所述候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
本实施例的载波切换装置，可以通过接收载波切换指示，根据所述载波切换指示，从候选载波中确 定物理上行控制信道的目标载波，使得终端设备可以根据指示进行载波切换，保证了HARQ-ACK发送的可靠性和反馈效率，降低干扰，提高负载均衡。
请参见图9，图9为本申请实施例提供的一种网络设备的结构示意图。
如图9所示，该载波切换装置900包括：收发单元910，其中：
收发单元910，用于发送载波切换指示；
其中，所述载波切换指示用于指示终端设备从候选载波中确定物理上行控制信道的目标载波；
所述载波切换指示包括下列中的至少一个：
下行控制信息DCI中的增设字段；
复用物理上行控制信道资源指示PRI；
复用混合自动重传请求HARQ反馈时间指示；
复用上行链路/补充上行链路UL/SUL指示；
复用下行控制信息DCI中的载波指示字段。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；
其中，复用所述物理上行控制信道资源指示PRI为至少1比特，用于指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：复用所述混合自动重传请求HARQ反馈时间指示；
其中，所述混合自动重传请求HARQ反馈时间指示，用于隐式指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为两个的情况下，所述载波切换指示包括：复用所述上行链路/补充上行链路UL/SUL指示；
其中，所述上行链路/补充上行链路UL/SUL指示，用于指示在两个所述候选载波之间的载波切换。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；
其中，复用所述物理上行控制信道资源指示PRI包括第一指示信息和第二指示信息，所述第一指示信息用于指示所述目标载波所在的候选载波子集或者所述目标载波的载波索引，所述第二指示信息用于指示所述目标载波可用的PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；
其中，所述物理上行控制信道资源指示PRI包括第三指示信息，所述第三指示信息用于指示所述目标载波和对应的PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：所述上行链路/补充上行链路UL/SUL和所述物理上行控制信道资源指示PRI的联合指示；
其中，所述上行链路/补充上行链路UL/SUL指示用于指示所述目标载波所在的候选载波子集，所述物理上行控制信道资源指示PRI用于指示所述候选载波子集对应的时频资源集合中的目标PUCCH时 频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：所述下行控制信息DCI中的载波指示和所述物理上行控制信道资源指示PRI的联合指示；
其中，所述载波指示用于指示所述目标载波的载波索引，所述物理上行控制信道资源指示PRI用于指示所述目标载波对应的时频资源集合中的目标PUCCH时频资源。
可选地，所述候选载波的个数为四个的情况下，所述载波切换指示包括：所述混合自动重传请求HARQ反馈时间和所述物理上行控制信道资源指示PRI的联合指示；
其中，所述混合自动重传请求HARQ反馈时间指示用于隐式指示所述目标载波所在的候选载波子集，所述物理上行控制信道资源指示PRI用于指示所述候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
本实施例的载波切换装置，可以通过发送载波切换指示，其中，载波切换指示用于指示终端设备从候选载波中确定物理上行控制信道的目标载波，使得终端设备可以根据指示进行载波切换，保证了HARQ-ACK发送的可靠性和反馈效率，降低干扰，提高负载均衡。
为了实现上述实施例，本申请实施例还提出一种通信装置，包括：处理器和存储器，存储器中存储有计算机程序，处理器执行所述存储器中存储的计算机程序，以使装置执行图2至图4实施例所示的方法。
为了实现上述实施例，本申请实施例还提出一种通信装置，包括：处理器和存储器，存储器中存储有计算机程序，处理器执行所述存储器中存储的计算机程序，以使装置执行图5至图7实施例所示的方法。
为了实现上述实施例，本申请实施例还提出一种通信装置，包括：处理器和接口电路，接口电路，用于接收代码指令并传输至处理器，处理器，用于运行所述代码指令以执行图2至图4实施例所示的方法。
为了实现上述实施例，本申请实施例还提出一种通信装置，包括：处理器和接口电路，接口电路，用于接收代码指令并传输至处理器，处理器，用于运行所述代码指令以执行图5至图7实施例所示的方法。
请参见图10，图10是本公开实施例提供的另一种载波切换装置的结构示意图。载波切换装置1000可以是网络设备，也可以是终端设备，也可以是支持网络设备实现上述方法的芯片、芯片系统、或处理器等，还可以是支持终端设备实现上述方法的芯片、芯片系统、或处理器等。该装置可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。
载波切换装置1000可以包括一个或多个处理器1001。处理器1001可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对载波切换装置(如，基站、基带芯片，终端设备、终端设备芯片，DU或CU等)进行控制，执行计算机程序，处理计算机程序的数据。
可选的，载波切换装置1000中还可以包括一个或多个存储器1002，其上可以存有计算机程序1003，处理器1001执行计算机程序1003，以使得载波切换装置1000执行上述方法实施例中描述的方法。计 算机程序1003可能固化在处理器1001中，该种情况下，处理器1001可能由硬件实现。
可选的，存储器1002中还可以存储有数据。载波切换装置1000和存储器1002可以单独设置，也可以集成在一起。
可选的，载波切换装置1000还可以包括收发器1005、天线1006。收发器1005可以称为收发单元、收发机、或收发电路等，用于实现收发功能。收发器1005可以包括接收器和发送器，接收器可以称为接收机或接收电路等，用于实现接收功能；发送器可以称为发送机或发送电路等，用于实现发送功能。
可选的，载波切换装置1000中还可以包括一个或多个接口电路1007。接口电路1007用于接收代码指令并传输至处理器1001。处理器1001运行代码指令以使载波切换装置1000执行上述方法实施例中描述的方法。
载波切换装置1000为终端设备：收发器1005用于执行图2中的步骤201；图3中的步骤301；图4中的步骤401；处理器1001用于执行图2中的步骤202；图3中的步骤302；图4中的步骤402。
载波切换装置1000为网络设备，收发器1005用于执行图5中的步骤401；图6中的步骤601；图7中的步骤701。
在一种实现方式中，处理器1001中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路，或者是接口，或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的，也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写，或者，上述收发电路、接口或接口电路可以用于信号的传输或传递。
在一种实现方式中，载波切换装置1000可以包括电路，电路可以实现前述方法实施例中发送或接收或者通信的功能。本公开中描述的处理器和收发器可实现在集成电路(integrated circuit，IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit board，PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造，例如互补金属氧化物半导体(complementary metal oxide semiconductor，CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor，NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor，PMOS)、双极结型晶体管(bipolar junction transistor，BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的载波切换装置可以是网络设备或者终端设备，但本公开中描述的载波切换装置的范围并不限于此，而且载波切换装置的结构可以不受图8-图9的限制。载波切换装置可以是独立的设备或者可以是较大设备的一部分。例如载波切换装置可以是：
(1)独立的集成电路IC，或芯片，或，芯片系统或子系统；
(2)具有一个或多个IC的集合，可选的，该IC集合也可以包括用于存储数据，计算机程序的存储部件；
(3)ASIC，例如调制解调器(Modem)；
(4)可嵌入在其他设备内的模块；
(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等；
(6)其他等等。
对于载波切换装置可以是芯片或芯片系统的情况，可参见图11所示的芯片的结构示意图。图11 所示的芯片包括处理器1101和接口1102。其中，处理器1101的数量可以是一个或多个，接口1102的数量可以是多个。
对于芯片用于实现本公开实施例中网络设备的功能的情况：
接口1102，用于代码指令并传输至处理器；
处理器1101，用于运行代码指令以执行如图2至图4的方法。
对于芯片用于实现本公开实施例中终端设备的功能的情况：
接口1102，用于代码指令并传输至处理器；
处理器1101，用于运行代码指令以执行如图5至图7的方法。
可选的，芯片还包括存储器1103，存储器1103用于存储必要的计算机程序和数据。
本领域技术人员还可以了解到本公开实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现的功能，但这种实现不应被理解为超出本公开实施例保护的范围。
本公开实施例还提供一种通信系统，该系统包括前述图8-图9实施例中作为终端设备的载波切换装置和作为网络设备的载波切换装置，或者，该系统包括前述图10实施例中作为终端设备的载波切换装置和作为网络设备的载波切换装置。
本公开还提供一种可读存储介质，其上存储有指令，该指令被计算机执行时实现上述任一方法实施例的功能。
本公开还提供一种计算机程序产品，该计算机程序产品被计算机执行时实现上述任一方法实施例的功能。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。计算机程序产品包括一个或多个计算机程序。在计算机上加载和执行计算机程序时，全部或部分地产生按照本公开实施例的流程或功能。计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。计算机程序可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，计算机程序可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
本领域普通技术人员可以理解：本公开中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本公开实施例的范围，也表示先后顺序。
本公开中的至少一个还可以描述为一个或多个，多个可以是两个、三个、四个或者更多个，本公开不做限制。在本公开实施例中，对于一种技术特征，通过“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”等区分该种技术特征中的技术特征，该“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”描述的技术特征间无先后顺序或者大小顺序。
本公开中各表所示的对应关系可以被配置，也可以是预定义的。各表中的信息的取值仅仅是举例，可以配置为其他值，本公开并不限定。在配置信息与各参数的对应关系时，并不一定要求必须配置各表中示意出的所有对应关系。例如，本公开中的表格中，某些行示出的对应关系也可以不配置。又例如，可以基于上述表格做适当的变形调整，例如，拆分，合并等等。上述各表中标题示出参数的名称也可以采用通信装置可理解的其他名称，其参数的取值或表示方式也可以通信装置可理解的其他取值或表示方式。上述各表在实现时，也可以采用其他的数据结构，例如可以采用数组、队列、容器、栈、线性表、指针、链表、树、图、结构体、类、堆、散列表或哈希表等。
本公开中的预定义可以理解为定义、预先定义、存储、预存储、预协商、预配置、固化、或预烧制。
本领域普通技术人员可以意识到，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，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，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公开的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
应当理解，可以使用上面所示的各种形式的流程，重新排序、增加或删除步骤。例如，本公开实施例中记载的各步骤可以并行地执行也可以顺序地执行也可以不同的次序执行，只要能够实现本发明公开的技术方案所期望的结果，本文在此不进行限制。
上述具体实施方式，并不构成对本发明保护范围的限制。本领域技术人员应该明白的是，根据设计要求和其他因素，可以进行各种修改、组合、子组合和替代。任何在本发明的精神和原则之内所作的修改、等同替换和改进等，均应包含在本发明保护范围之内。

Claims (46)

  1. 一种载波切换方法，其特征在于，所述方法由终端设备执行，所述方法包括：
    接收载波切换指示；
    根据所述载波切换指示，从候选载波中确定物理上行控制信道的目标载波；
    其中，所述载波切换指示包括下列中的至少一个：
    下行控制信息DCI中的增设字段；
    复用物理上行控制信道资源指示PRI；
    复用混合自动重传请求HARQ反馈时间指示；
    复用上行链路/补充上行链路UL/SUL指示；
    复用下行控制信息DCI中的载波指示。
  2. 根据权利要求1所述的方法，其特征在于，所述候选载波的个数为两个，所述载波切换指示包括所述下行控制信息DCI中的增设字段；
    其中，所述增设字段为至少1比特，用于指示在两个所述候选载波之间的载波切换。
  3. 根据权利要求1所述的方法，其特征在于，所述候选载波的个数为两个，所述载波切换指示包括复用所述物理上行控制信道资源指示PRI；
    其中，复用所述物理上行控制信道资源指示PRI为至少1比特，用于指示在两个所述候选载波之间的载波切换。
  4. 根据权利要求1所述的方法，其特征在于，所述候选载波的个数为两个，所述载波切换指示包括复用所述混合自动重传请求HARQ反馈时间指示；
    其中，所述混合自动重传请求HARQ反馈时间指示，用于隐式指示在两个所述候选载波之间的载波切换。
  5. 根据权利要求1所述的方法，其特征在于，所述候选载波的个数为两个，所述载波切换指示包括复用所述上行链路/补充上行链路UL/SUL指示；
    其中，所述上行链路/补充上行链路UL/SUL指示，用于指示在两个所述候选载波之间的载波切换。
  6. 根据权利要求1所述的方法，其特征在于，所述候选载波的个数为四个，所述载波切换指示包括复用所述物理上行控制信道资源指示PRI；
    其中，复用所述物理上行控制信道资源指示PRI包括第一指示信息和第二指示信息，所述第一指示信息用于指示所述目标载波所在的候选载波子集或者所述目标载波的载波索引，所述第二指示信息用于指示所述目标载波可用的PUCCH时频资源。
  7. 根据权利要求1所述的方法，其特征在于，所述候选载波的个数为四个，所述载波切换指示包括复用所述物理上行控制信道资源指示PRI；
    其中，所述物理上行控制信道资源指示PRI包括第三指示信息，所述第三指示信息用于指示所述目标载波和对应的PUCCH时频资源。
  8. 根据权利要求1所述的方法，其特征在于，所述候选载波的个数为四个，所述载波切换指示包括所述上行链路/补充上行链路UL/SUL和所述物理上行控制信道资源指示PRI的联合指示；
    其中，所述上行链路/补充上行链路UL/SUL指示用于指示所述目标载波所在的候选载波子集，所 述物理上行控制信道资源指示PRI用于指示所述候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
  9. 根据权利要求1所述的方法，其特征在于，所述候选载波的个数为四个，所述载波切换指示包括：所述下行控制信息DCI中的载波指示和所述物理上行控制信道资源指示PRI的联合指示；
    其中，所述载波指示用于指示所述目标载波的载波索引，所述物理上行控制信道资源指示PRI用于指示所述目标载波对应的时频资源集合中的目标PUCCH时频资源。
  10. 根据权利要求1所述的方法，其特征在于，所述候选载波的个数为四个，所述载波切换指示包括：所述混合自动重传请求HARQ反馈时间和所述物理上行控制信道资源指示PRI的联合指示；
    其中，所述混合自动重传请求HARQ反馈时间指示用于隐式指示所述目标载波所在的候选载波子集，所述物理上行控制信道资源指示PRI用于指示所述候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
  11. 一种载波切换方法，其特征在于，所述方法由网络设备执行，所述方法包括：
    发送载波切换指示；
    其中，所述载波切换指示用于指示终端设备从候选载波中确定物理上行控制信道的目标载波；
    所述载波切换指示包括下列中的至少一个：
    下行控制信息DCI中的增设字段；
    复用物理上行控制信道资源指示PRI；
    复用混合自动重传请求HARQ反馈时间指示；
    复用上行链路/补充上行链路UL/SUL指示；
    复用下行控制信息DCI中的载波指示字段。
  12. 根据权利要求11所述的方法，其特征在于，所述候选载波的个数为两个，所述载波切换指示包括：下行控制信息DCI中的增设字段；
    其中，所述增设字段为至少1比特，用于指示在两个所述候选载波之间的载波切换。
  13. 根据权利要求11所述的方法，其特征在于，所述候选载波的个数为两个的情况下，所述载波切换指示包括：复用物理上行控制信道资源指示PRI；
    其中，复用所述物理上行控制信道资源指示PRI为至少1比特，用于指示在两个所述候选载波之间的载波切换。
  14. 根据权利要求11所述的方法，其特征在于，所述候选载波的个数为两个，所述载波切换指示包括：复用所述混合自动重传请求HARQ反馈时间指示；
    其中，所述混合自动重传请求HARQ反馈时间指示，用于隐式指示在两个所述候选载波之间的载波切换。
  15. 根据权利要求11所述的方法，其特征在于，所述候选载波的个数为两个，所述载波切换指示包括：复用所述上行链路/补充上行链路UL/SUL指示；
    其中，所述上行链路/补充上行链路UL/SUL指示，用于指示在两个所述候选载波之间的载波切换。
  16. 根据权利要求11所述的方法，其特征在于，所述候选载波的个数为四个，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；
    其中，复用所述物理上行控制信道资源指示PRI包括第一指示信息和第二指示信息，所述第一指 示信息用于指示所述目标载波所在的候选载波子集或者所述目标载波的载波索引，所述第二指示信息用于指示所述目标载波可用的PUCCH时频资源。
  17. 根据权利要求11所述的方法，其特征在于，所述候选载波的个数为四个，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；
    其中，所述物理上行控制信道资源指示PRI包括第三指示信息，所述第三指示信息用于指示所述目标载波可用的PUCCH时频资源。
  18. 根据权利要求11所述的方法，其特征在于，所述候选载波的个数为四个，所述载波切换指示包括：所述上行链路/补充上行链路UL/SUL和所述物理上行控制信道资源指示PRI的联合指示；
    其中，所述上行链路/补充上行链路UL/SUL指示用于指示所述目标载波所在的候选载波子集，所述物理上行控制信道资源指示PRI用于指示所述候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
  19. 根据权利要求11所述的方法，其特征在于，所述候选载波的个数为四个，所述载波切换指示包括：所述下行控制信息DCI中的载波指示和所述物理上行控制信道资源指示PRI的联合指示；
    其中，所述载波指示用于指示目标载波的载波索引，所述物理上行控制信道资源指示PRI用于指示所述目标载波对应的时频资源集合中的目标PUCCH时频资源。
  20. 根据权利要求11所述的方法，其特征在于，所述候选载波的个数为四个，所述载波切换指示包括：所述混合自动重传请求HARQ反馈时间和所述物理上行控制信道资源指示PRI的联合指示；
    其中，所述混合自动重传请求HARQ反馈时间指示用于指示所述目标载波所在的候选载波子集，所述物理上行控制信道资源指示PRI用于指示所述候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
  21. 一种载波切换装置，其特征在于，所述装置包括：
    收发单元，用于接收载波切换指示；
    处理单元，用于根据所述载波切换指示，从候选载波中确定物理上行控制信道的目标载波；
    其中，所述载波切换指示包括下列中的至少一个：
    下行控制信息DCI中的增设字段；
    复用物理上行控制信道资源指示PRI；
    复用混合自动重传请求HARQ反馈时间指示；
    复用上行链路/补充上行链路UL/SUL指示；
    复用下行控制信息DCI中的载波指示。
  22. 根据权利要求21所述的装置，其特征在于，所述候选载波的个数为两个，所述载波切换指示包括：所述下行控制信息DCI中的增设字段；
    其中，所述增设字段为至少1比特，用于指示在两个所述候选载波之间的载波切换。
  23. 根据权利要求21所述的装置，其特征在于，所述候选载波的个数为两个，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；
    其中，复用所述物理上行控制信道资源指示PRI为至少1比特，用于指示在两个所述候选载波之间的载波切换。
  24. 根据权利要求21所述的装置，其特征在于，所述候选载波的个数为两个，所述载波切换指示 包括：复用所述混合自动重传请求HARQ反馈时间指示；
    其中，所述混合自动重传请求HARQ反馈时间指示，用于隐式指示在两个所述候选载波之间的载波切换。
  25. 根据权利要求21所述的装置，其特征在于，所述候选载波的个数为两个，所述载波切换指示包括：复用所述上行链路/补充上行链路UL/SUL指示；
    其中，所述上行链路/补充上行链路UL/SUL指示，用于指示在两个所述候选载波之间的载波切换。
  26. 根据权利要求21所述的装置，其特征在于，所述候选载波的个数为四个，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；
    其中，复用所述物理上行控制信道资源指示PRI包括第一指示信息和第二指示信息，所述第一指示信息用于指示所述目标载波所在的候选载波子集或者所述目标载波的载波索引，所述第二指示信息用于指示所述目标载波可用的PUCCH时频资源。
  27. 根据权利要求21所述的装置，其特征在于，所述候选载波的个数为四个，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；
    其中，所述物理上行控制信道资源指示PRI包括第三指示信息，所述第三指示信息用于指示所述目标载波和对应的PUCCH时频资源。
  28. 根据权利要求21所述的装置，其特征在于，所述候选载波的个数为四个，所述载波切换指示包括：所述上行链路/补充上行链路UL/SUL和所述物理上行控制信道资源指示PRI的联合指示；
    其中，所述上行链路/补充上行链路UL/SUL指示用于指示所述目标载波所在的候选载波子集，所述物理上行控制信道资源指示PRI用于指示所述候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
  29. 根据权利要求21所述的装置，其特征在于，所述候选载波的个数为四个，所述载波切换指示包括：所述下行控制信息DCI中的载波指示和所述物理上行控制信道资源指示PRI的联合指示；
    其中，所述载波指示用于指示所述目标载波的载波索引，所述物理上行控制信道资源指示PRI用于指示所述目标载波对应的时频资源集合中的目标PUCCH时频资源。
  30. 根据权利要求21所述的装置，其特征在于，所述候选载波的个数为四个，所述载波切换指示包括：所述混合自动重传请求HARQ反馈时间和所述物理上行控制信道资源指示PRI的联合指示；
    其中，所述混合自动重传请求HARQ反馈时间指示用于隐式指示所述目标载波所在的候选载波子集，所述物理上行控制信道资源指示PRI用于指示所述候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
  31. 一种载波切换装置，其特征在于，所述装置包括：
    收发单元，用于发送载波切换指示；
    其中，所述载波切换指示用于指示终端设备从候选载波中确定物理上行控制信道的目标载波；
    所述载波切换指示包括下列中的至少一个：
    下行控制信息DCI中的增设字段；
    复用物理上行控制信道资源指示PRI；
    复用混合自动重传请求HARQ反馈时间指示；
    复用上行链路/补充上行链路UL/SUL指示；
    复用下行控制信息DCI中的载波指示字段。
  32. 根据权利要求31所述的装置，其特征在于，所述候选载波的个数为两个，所述载波切换指示包括：下行控制信息DCI中的增设字段；
    其中，所述增设字段为至少1比特，用于指示在两个所述候选载波之间的载波切换。
  33. 根据权利要求31所述的装置，其特征在于，所述候选载波的个数为两个，所述载波切换指示包括：复用物理上行控制信道资源指示PRI；
    其中，复用所述物理上行控制信道资源指示PRI为至少1比特，用于指示在两个所述候选载波之间的载波切换。
  34. 根据权利要求31所述的装置，其特征在于，所述候选载波的个数为两个，所述载波切换指示包括：复用所述混合自动重传请求HARQ反馈时间指示；
    其中，所述混合自动重传请求HARQ反馈时间指示，用于隐式指示在两个所述候选载波之间的载波切换。
  35. 根据权利要求31所述的装置，其特征在于，所述候选载波的个数为两个，所述载波切换指示包括：复用所述上行链路/补充上行链路UL/SUL指示；
    其中，所述上行链路/补充上行链路UL/SUL指示，用于指示在两个所述候选载波之间的载波切换。
  36. 根据权利要求31所述的装置，其特征在于，所述候选载波的个数为四个，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；
    其中，复用所述物理上行控制信道资源指示PRI包括第一指示信息和第二指示信息，所述第一指示信息用于指示所述目标载波所在的候选载波子集或者所述目标载波的载波索引，所述第二指示信息用于指示所述目标载波可用的PUCCH时频资源。
  37. 根据权利要求31所述的装置，其特征在于，所述候选载波的个数为四个，所述载波切换指示包括：复用所述物理上行控制信道资源指示PRI；
    其中，所述物理上行控制信道资源指示PRI包括第三指示信息，所述第三指示信息用于指示所述目标载波可用的PUCCH时频资源。
  38. 根据权利要求31所述的装置，其特征在于，所述候选载波的个数为四个，所述载波切换指示包括：所述上行链路/补充上行链路UL/SUL和所述物理上行控制信道资源指示PRI的联合指示；
    其中，所述上行链路/补充上行链路UL/SUL指示用于指示所述目标载波所在的候选载波子集，所述物理上行控制信道资源指示PRI用于指示所述候选载波子集对应的时频资源集合中的目标PUCCH时频资源。
  39. 根据权利要求31所述的装置，其特征在于，所述候选载波的个数为四个，所述载波切换指示包括：所述下行控制信息DCI中的载波指示和所述物理上行控制信道资源指示PRI的联合指示；
    其中，所述载波指示用于指示目标载波的载波索引，所述物理上行控制信道资源指示PRI用于指示所述目标载波对应的时频资源集合中的目标PUCCH时频资源。
  40. 根据权利要求31所述的装置，其特征在于，所述候选载波的个数为四个，所述载波切换指示包括：所述混合自动重传请求HARQ反馈时间和所述物理上行控制信道资源指示PRI的联合指示；
    其中，所述混合自动重传请求HARQ反馈时间指示用于指示所述目标载波所在的候选载波子集，所述物理上行控制信道资源指示PRI用于指示所述候选载波子集对应的时频资源集合中的目标PUCCH 时频资源。
  41. 一种通信装置，其特征在于，所述装置包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如权利要求1至10中任一项所述的方法。
  42. 一种通信装置，其特征在于，所述装置包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如权利要求11至20中任一项所述的方法。
  43. 一种通信装置，其特征在于，包括：处理器和接口电路；
    所述接口电路，用于接收代码指令并传输至所述处理器；
    所述处理器，用于运行所述代码指令以执行如权利要求1至10中任一项所述的方法。
  44. 一种通信装置，其特征在于，包括：处理器和接口电路；
    所述接口电路，用于接收代码指令并传输至所述处理器；
    所述处理器，用于运行所述代码指令以执行如权利要求11至20中任一项所述的方法。
  45. 一种计算机可读存储介质，用于存储有指令，当所述指令被执行时，使如权利要求1至10中任一项所述的方法被实现。
  46. 一种计算机可读存储介质，用于存储有指令，当所述指令被执行时，使如权利要求11至20中任一项所述的方法被实现。
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