WO2024065546A1 - 切换指示方法、装置、设备、芯片***及存储介质 - Google Patents

切换指示方法、装置、设备、芯片***及存储介质 Download PDF

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Publication number
WO2024065546A1
WO2024065546A1 PCT/CN2022/122939 CN2022122939W WO2024065546A1 WO 2024065546 A1 WO2024065546 A1 WO 2024065546A1 CN 2022122939 W CN2022122939 W CN 2022122939W WO 2024065546 A1 WO2024065546 A1 WO 2024065546A1
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Prior art keywords
target cell
indication
terminal device
cell
indication message
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PCT/CN2022/122939
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English (en)
French (fr)
Inventor
罗星熠
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北京小米移动软件有限公司
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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 CN202280004058.6A priority Critical patent/CN118120290A/zh
Priority to PCT/CN2022/122939 priority patent/WO2024065546A1/zh
Publication of WO2024065546A1 publication Critical patent/WO2024065546A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a switching indication method, device, equipment, chip system and storage medium.
  • the network device When the terminal device is in a connected state, the network device implements mobility management of the terminal device through a switching process.
  • Traditional network controlled mobility includes cell level mobility and beam level mobility.
  • cell level mobility depends on the radio resource control layer (Radio Resource Control, RRC) signaling.
  • RRC Radio Resource Control
  • RRC Radio Resource Control
  • the concept of enhancing inter-cell mobility L1/L2-based inter-cell mobility) centered on Layer 1 (L1)/Layer 2 (L2) is introduced.
  • the mobility management of terminal devices is usually based on Layer 3 (L3) cell measurement results and relies on RRC signaling, which introduces more time overhead and affects switching efficiency.
  • L3 Layer 3
  • the embodiments of the present disclosure provide a switching indication method, apparatus, device, chip system, storage medium, computer program and computer program product, which can be applied in the field of communication technology, can effectively reduce the time overhead of switching indication and effectively improve switching efficiency.
  • an embodiment of the present disclosure provides a switching indication method, which is executed by a first network device.
  • the method includes: in response to determining that a terminal device needs to switch to a target cell, sending a first indication message to the terminal device, wherein the first indication message is used to instruct the terminal device to switch to the target cell, and the target cell is determined by a beam measurement result.
  • the present disclosure provides a switching indication method, the method further comprising:
  • the embodiment of the present disclosure provides a handover indication method, wherein the first indication message is carried in at least one of the following signalings:
  • Control unit MAC CE signaling of the media access control layer
  • the embodiment of the present disclosure provides a handover indication method, wherein the first indication message is carried in: MAC CE signaling; wherein the MAC CE signaling includes at least one of the following:
  • Beam indication information of the target cell Beam indication information of the target cell.
  • the present disclosure provides a handover indication method, wherein the cell indication information includes any one of the following:
  • the present disclosure provides a handover indication method, wherein the beam indication information of the target cell includes at least one of the following:
  • TCI state of the target cell a transmission configuration indication TCI state of the target cell, wherein the TCI state of the target cell is used to determine a beam of the target cell;
  • Activation indication information of the TCI status of at least one target cell wherein the TCI status of the target cell is used to determine the beam of the target cell.
  • the embodiment of the present disclosure provides a handover indication method, wherein the first indication message is carried in: DCI signaling; wherein the DCI signaling includes at least one of the following:
  • Beam indication information of the target cell Beam indication information of the target cell.
  • An embodiment of the present disclosure provides a switching indication method, wherein DCI signaling includes a first indication field, wherein a value of the first indication field is used to indicate cell indication information.
  • An embodiment of the present disclosure provides a switching indication method, wherein DCI signaling includes a second indication field, wherein a value of the second indication field is used to indicate beam indication information of a target cell.
  • the present disclosure provides a handover indication method, wherein the beam indication information of the target cell includes at least one of the following:
  • TCI state of an activated target cell Indicates a TCI state of an activated target cell, wherein the indicated TCI state of the activated target cell is used to determine the beam of the target cell.
  • the present disclosure provides a switching indication method, the method further comprising:
  • the present disclosure provides a handover indication method, wherein the second indication message includes at least one of the following:
  • an embodiment of the present disclosure provides a switching indication method, which is executed by a terminal device, and the method includes: receiving a first indication message sent by a first network device, wherein the first indication message is used to instruct the terminal device to switch to a target cell, and the target cell is determined by a beam measurement result.
  • the present disclosure provides a switching indication method, the method further comprising:
  • the present disclosure provides a handover indication method, wherein the first indication message is carried in at least one of the following signalings:
  • Control unit MAC CE signaling of the media access control layer
  • the embodiment of the present disclosure provides a handover indication method, wherein the first indication message is carried in: MAC CE signaling; wherein the MAC CE signaling includes at least one of the following:
  • Beam indication information of the target cell Beam indication information of the target cell.
  • the present disclosure provides a handover indication method, wherein the cell indication information includes any one of the following:
  • the present disclosure provides a handover indication method, wherein the beam indication information of the target cell includes at least one of the following:
  • TCI state of the target cell a transmission configuration indication TCI state of the target cell, wherein the TCI state of the target cell is used to determine a beam of the target cell;
  • Activation indication information of the TCI status of at least one target cell wherein the TCI status of the target cell is used to determine the beam of the target cell.
  • the embodiment of the present disclosure provides a handover indication method, wherein the first indication message is carried in: DCI signaling; wherein the DCI signaling includes at least one of the following:
  • Beam indication information of the target cell Beam indication information of the target cell.
  • An embodiment of the present disclosure provides a switching indication method, wherein DCI signaling includes a first indication field, wherein a value of the first indication field is used to indicate cell indication information.
  • the present disclosure provides a handover indication method, wherein the cell indication information includes any one of the following:
  • An embodiment of the present disclosure provides a switching indication method, wherein DCI signaling includes a second indication field, wherein a value of the second indication field is used to indicate beam indication information of a target cell.
  • the present disclosure provides a handover indication method, wherein the beam indication information of the target cell includes at least one of the following:
  • TCI state of an activated target cell Indicates a TCI state of an activated target cell, wherein the indicated TCI state of the activated target cell is used to determine the beam of the target cell.
  • the present disclosure provides a switching indication method, the method further comprising:
  • a second indication message is sent to the first network device, wherein the second indication message is used to indicate that the terminal device has received the DCI signaling.
  • the present disclosure provides a handover indication method, wherein the second indication message includes at least one of the following:
  • the present disclosure provides a switching indication method, the method further comprising:
  • a third indication message is sent to the second network device, wherein the third indication message is used to indicate that switching to the target cell has been completed.
  • the present disclosure provides a handover indication method, which sends a third indication message to a second network device, including at least one of the following:
  • a third indication message is sent to the second network device.
  • the present disclosure provides a handover indication method, wherein the reserved resources include at least one of the following:
  • an embodiment of the present disclosure provides a switching indication method, which is executed by a second network device, the method comprising: determining that a terminal device has switched to a target cell, wherein the target cell is determined by a beam measurement result.
  • the present disclosure provides a handover indication method for determining that a terminal device has been handed over to a target cell, including:
  • the present disclosure provides a switching indication method, which receives a third indication message sent by a terminal device, including at least one of the following:
  • a third indication message sent by the terminal device is received, wherein the first indication message is used by the first network device to instruct the terminal device to switch to the target cell.
  • the present disclosure provides a handover indication method, wherein the reserved resources include at least one of the following:
  • Scheduling requests SR resources are Scheduling requests SR resources.
  • an embodiment of the present disclosure provides a communication device, which has some or all of the functions of the first network device in the method of the first aspect above.
  • the functions of the communication device may have some or all of the functions in the embodiments of the present disclosure, or may have the functions of implementing any one of the embodiments of the present disclosure alone.
  • the functions may be implemented by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform the corresponding functions in the above method.
  • the transceiver module is used to support communication between the communication device and other devices.
  • the communication device may also include a storage module, which is coupled to the transceiver module and the processing module, and stores computer programs and data necessary for the communication device.
  • the processing module may be a processor
  • the transceiver module may be a transceiver or a communication interface
  • the storage module may be a memory
  • an embodiment of the present disclosure provides another communication device, which has some or all of the functions of the terminal device in the method example of the second aspect above.
  • the functions of the communication device may have some or all of the functions in the embodiments of the present disclosure, or may have the functions of implementing any one of the embodiments of the present disclosure separately.
  • the functions may be implemented by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform the corresponding functions in the above method.
  • the transceiver module is used to support communication between the communication device and other devices.
  • the communication device may also include a storage module, which is coupled to the transceiver module and the processing module, and stores computer programs and data necessary for the communication device.
  • an embodiment of the present disclosure provides another communication device, which has some or all of the functions of the second network device in the method example of the third aspect above, such as the functions of the communication device may have the functions of some or all of the embodiments in the present disclosure, or may have the functions of implementing any one of the embodiments in the present disclosure alone.
  • the functions may be implemented by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform the corresponding functions in the above method.
  • the transceiver module is used to support communication between the communication device and other devices.
  • the communication device may also include a storage module, which is coupled to the transceiver module and the processing module, and stores computer programs and data necessary for the communication device.
  • an embodiment of the present disclosure provides a communication device, which includes a processor.
  • the processor calls a computer program in a memory, the switching indication method of the first aspect is executed.
  • an embodiment of the present disclosure provides a communication device, which includes a processor.
  • the processor calls a computer program in a memory
  • the switching indication method of the second aspect is executed.
  • an embodiment of the present disclosure provides a communication device, which includes a processor.
  • the processor calls a computer program in a memory
  • the switching indication method of the third aspect is executed.
  • an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the switching indication method of the first aspect mentioned above.
  • an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the switching indication method of the second aspect mentioned above.
  • an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the switching indication method of the third aspect mentioned above.
  • an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein 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 enable the device to execute the switching indication method of the first aspect mentioned above.
  • an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein 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 enable the device to execute the switching indication method of the second aspect mentioned above.
  • an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein 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 enable the device to execute the switching indication method of the third aspect mentioned above.
  • an embodiment of the present disclosure provides a communication system, which includes the communication device of the fourth aspect, the communication device of the fifth aspect, and the communication device of the sixth aspect, or the system includes the communication device of the seventh aspect, the communication device of the eighth aspect, and the communication device of the ninth aspect, or the system includes the communication device of the tenth aspect, the communication device of the eleventh aspect, and the communication device of the twelfth aspect, or the system includes the communication device of the thirteenth aspect, the communication device of the fourteenth aspect, and the communication device of the fifteenth aspect.
  • an embodiment of the present disclosure provides a computer-readable storage medium for storing instructions used by the above-mentioned terminal device. When the instructions are executed, the terminal device executes the above-mentioned switching indication method.
  • the present disclosure further provides a computer program product including a computer program, which, when executed on a computer, enables the computer to execute the above-mentioned switching indication method.
  • the present disclosure provides a chip system, which includes at least one processor and an interface, for supporting a first network device to implement the functions involved in the first aspect, for example, determining or processing at least one of the data and information involved in the above method.
  • the chip system also includes a memory, which is used to store computer programs and data necessary for the first network device.
  • the chip system can be composed of chips or chips and other discrete devices.
  • the present disclosure provides a chip system comprising at least one processor and an interface for supporting a terminal device to implement the functions involved in the second aspect, for example, determining or processing at least one of the data and information involved in the above method.
  • the chip system also includes a memory, which is used to store computer programs and data necessary for the terminal device.
  • the chip system can be composed of a chip or include a chip and other discrete devices.
  • the present disclosure provides a chip system comprising at least one processor and an interface for supporting a third network device to implement the functions involved in the third aspect, for example, determining or processing at least one of the data and information involved in the above method.
  • the chip system also includes a memory, which is used to store computer programs and data necessary for the third network device.
  • the chip system can be composed of chips or chips and other discrete devices.
  • the present disclosure provides a computer program which, when executed on a computer, enables the computer to execute the above-mentioned switching indication method.
  • the switching indication method, device, equipment, chip system, storage medium, computer program and computer program product provided in the embodiments of the present disclosure can achieve the following technical effects:
  • a first indication message is sent to the terminal device, wherein the first indication message is used to instruct the terminal device to switch to the target cell. Since the beam measurement result is the measurement result of L1, it does not need to be processed by L3 to obtain the cell measurement result, and the beam measurement result does not rely on RRC signaling to indicate the switch, thereby effectively reducing the time overhead of the switch indication and effectively improving the switching efficiency.
  • FIG1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure.
  • FIG2 is a flow chart of a switching indication method provided by an embodiment of the present disclosure.
  • FIG3 is a flow chart of a switching indication method provided by an embodiment of the present disclosure.
  • FIG4 is a flow chart of another switching indication method provided by an embodiment of the present disclosure.
  • FIG5 is a schematic flow chart of another switching indication method provided by an embodiment of the present disclosure.
  • FIG6 is a flow chart of another switching indication method provided by an embodiment of the present disclosure.
  • FIG7 is a schematic flow chart of another switching indication method provided in an embodiment of the present disclosure.
  • FIG8 is a flow chart of another switching indication method provided by an embodiment of the present disclosure.
  • FIG9 is a flow chart of another switching indication method provided in an embodiment of the present disclosure.
  • FIG10 is a schematic diagram of a flow chart of a switching indication method provided in an embodiment of the present disclosure.
  • FIG11 is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure.
  • FIG12 is a schematic diagram of the structure of another communication device provided in an embodiment of the present disclosure.
  • FIG. 13 is a schematic diagram of the structure of a chip according to an embodiment of the present disclosure.
  • first, second, third, etc. may be used to describe various information in the disclosed embodiments, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
  • the words "if” and “if” as used herein may be interpreted as “at” or "when” or "in response to determination".
  • Random access refers to the process from when a user sends a random access preamble to try to access the network to when a basic signaling connection is established with the network. Random access is a very critical step in mobile communication systems and is also the last step in establishing a communication link between a terminal and a base station. Random access is divided into competitive random access and non-competitive random access.
  • RRC Radio Resource Control
  • Radio resource control also known as Radio Resource Management (RRM) or Radio Resource Allocation (RRA) refers to the management, control and scheduling of radio resources through certain strategies and means. It makes full use of limited wireless network resources as much as possible while meeting the quality of service requirements, ensures that the planned coverage area is reached, and maximizes service capacity and resource utilization.
  • RRM Radio Resource Management
  • RRA Radio Resource Allocation
  • DCI Downlink control information
  • Downlink control information refers to the downlink control information sent by the eNB to the UE and carried by the downlink physical control channel (PDCCH), including uplink and downlink resource allocation, HARQ information, power control, etc.
  • PDCCH downlink physical control channel
  • FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure.
  • the communication system may include, but is not limited to, a network device and a terminal device.
  • the number and form of devices shown in FIG. 1 are only used as examples and do not constitute a limitation on the embodiments of the present disclosure. In actual applications, two or more network devices and two or more terminal devices may be included.
  • the communication system shown in FIG. 1 includes two network devices 101 and one terminal device 102 as an example.
  • LTE long term evolution
  • 5G fifth generation
  • NR 5G new radio
  • the network device 101 in the embodiment of the present disclosure is an entity on the network side for transmitting or receiving signals.
  • the network device 101 can be an evolved NodeB (eNB), a transmission point (TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system.
  • eNB evolved NodeB
  • TRP transmission point
  • gNB next generation NodeB
  • WiFi wireless fidelity
  • the embodiment of the present disclosure does not limit the specific technology and specific device form adopted by the network device.
  • the network device may be composed of a centralized unit (CU) and a distributed unit (DU), wherein the CU may also be called a control unit (control unit).
  • the CU-DU structure may be used to split the protocol layer of a network device, such as a base station, with some functions of the protocol layer being centrally controlled by the CU, and the remaining part or all of the functions of the protocol layer being distributed in the DU, and the DU being centrally controlled by the CU.
  • the terminal device 102 in the disclosed embodiment is an entity on the user side for receiving or transmitting signals, such as a mobile phone.
  • the terminal device may also be referred to as a terminal device (terminal), a user equipment (UE), a mobile station (MS), a mobile terminal device (MT), etc.
  • the terminal device may be a car with communication function, a smart car, a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in a smart city (smart city), a wireless terminal device in a smart home (smart home), etc.
  • the embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal device.
  • the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure.
  • a person skilled in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.
  • the cell that currently provides communication services to the terminal device can be called a service cell, and the network equipment of the service cell can be called a first network equipment.
  • the first network equipment is for example a source base station in the cell switching process.
  • the service cell to be switched to can be called a target cell, and the network equipment of the target cell can be called a second network equipment.
  • the second network equipment is for example a target base station in the cell switching process, and there is no restriction on this.
  • Figure 2 is a flow chart of a handover indication method provided by an embodiment of the present disclosure, which is executed by a first network device.
  • the handover indication method in this embodiment can be applied to the first network device, without limitation.
  • the method may include but is not limited to the following steps:
  • a first indication message is sent to the terminal device, wherein the first indication message is used to instruct the terminal device to switch to the target cell, and the target cell is determined by a beam measurement result.
  • the first network device of the service cell that currently provides communication services to the terminal device may send a dynamic switching indication to the terminal device, for example, a dynamic switching message may be sent to the terminal device, and the dynamic switching message may be referred to as a first indication message.
  • the first network device may determine whether the terminal device needs to switch to the target cell based on the beam measurement result of the terminal device.
  • the beam measurement result may be reported by the terminal device to the first network device.
  • the beam measurement result may, for example, include beam qualities in each candidate cell and the serving cell.
  • the beam quality may, for example, be Layer 1 Reference Signal Receiving Power (L1-RSRP) or Layer 1 Signal to Interference plus Noise Ratio (L1-SINR).
  • L1-RSRP Layer 1 Reference Signal Receiving Power
  • L1-SINR Layer 1 Signal to Interference plus Noise Ratio
  • the first network device may determine whether the terminal device needs to switch to the target cell based on the beam measurement result.
  • the first network device sends a first indication message to the terminal device to instruct the terminal device to switch to the target cell based on the first indication message.
  • the beam measurement result is the measurement result of L1, and there is no need to go through L3 processing to obtain the cell measurement result, and the beam measurement result does not rely on RRC signaling to indicate switching, thereby effectively reducing the time overhead of switching indication and effectively improving switching efficiency.
  • a first indication message is sent to the terminal device, wherein the first indication message is used to instruct the terminal device to switch to the target cell. Since the beam measurement result is the measurement result of L1, it does not need to be processed through L3 to obtain the cell measurement result, and the beam measurement result does not rely on RRC signaling to indicate the switch, thereby effectively reducing the time overhead of the switch indication and effectively improving the switching efficiency.
  • a switching indication method provided by an embodiment of the present disclosure, wherein a first network device can receive a beam measurement result reported by a terminal device, and determine, based on the beam measurement result, that the terminal device needs to switch to a target cell, so as to quickly determine whether the terminal device needs to switch to the target cell based on the beam measurement result of L1, and effectively support the first network device to promptly indicate the cell switching to the terminal device.
  • the beam measurement result may, for example, include the beam quality in each candidate cell and the beam quality in the service cell.
  • the beam measurement result may, for example, include the beam quality in each candidate cell and the beam quality in the service cell.
  • it may also include any other parameters that can represent the beam measurement status in each candidate cell and the service cell, and there is no limitation on this.
  • the first network device After receiving the beam measurement results reported by the terminal device, the first network device can analyze whether the service quality of the candidate cell is better than that of the service cell based on the beam measurement results. If so, the candidate cell that is better than the service cell can be used as the target cell, and then a switching instruction can be issued to the terminal device. There is no restriction on this.
  • Fig. 3 is a flow chart of a handover indication method provided by an embodiment of the present disclosure, and the method is executed by a first network device.
  • the handover indication method in this embodiment can be applied to the first network device, and there is no limitation on this.
  • the method may include but is not limited to the following steps:
  • a media access control layer control unit MAC CE signaling and/or downlink control information DCI signaling is sent to the terminal device, wherein the media access control layer control unit MAC CE signaling and/or downlink control information DCI signaling is used to instruct the terminal device to switch to the target cell, and the target cell is determined by the beam measurement result.
  • the first network device when it determines that the terminal device needs to switch to the target cell based on the beam measurement result, it can send MAC CE signaling and/or DCI signaling to the terminal device to instruct the terminal device to switch to the target cell based on the MAC CE signaling and/or DCI signaling.
  • the first network device may send MAC CE signaling to the terminal device to instruct the terminal device to switch to the target cell based on the MAC CE signaling, or the first network device may send DCI signaling to the terminal device to instruct the terminal device to switch to the target cell based on the DCI signaling, or the first network device may send MAC CE signaling and DCI signaling to the terminal device to instruct the terminal device to switch to the target cell based on the MAC CE signaling and the DCI signaling, or the first network device may also send a switching command, as well as MAC CE signaling and DCI signaling to the terminal device to instruct the terminal device to switch to the target cell based on a switching command, as well as MAC CE signaling and DCI signaling, and there is no restriction on this.
  • the control unit MAC CE signaling and/or downlink control information DCI signaling of the media access control layer are sent to the terminal device to instruct the terminal device to switch to the target cell.
  • the first network device can instruct the terminal device to switch to the target cell based on MAC CE signaling and/or DCI signaling, thereby effectively instructing the terminal device to perform cell switching and greatly improving the switching efficiency.
  • the present disclosure provides a method for designing an indication message, which is specifically as follows:
  • a method for designing an indication message is provided in an embodiment of the present disclosure, wherein a first indication message is carried in: MAC CE signaling; wherein the MAC CE signaling includes at least one of the following: cell indication information of the target cell; beam indication information of the target cell, so as to flexibly indicate to the terminal device to switch to the target cell based on the MAC CE signaling.
  • the indication information used to indicate the relevant information of the target cell can be called cell indication information
  • the indication information used to indicate the beam-related information of the target cell can be called beam indication information.
  • An embodiment of the present disclosure provides a method for designing an indication message, wherein the cell indication information includes any of the following:
  • MAC CE signaling is designed based on any of the above-mentioned indication message design methods to instruct the terminal device to perform cell switching based on MAC CE signaling, which can effectively improve the flexibility and applicability of the switching indication and can effectively adapt to various communication scenarios, so that the switching indication can be flexibly adapted to the personalized needs of the communication scenario.
  • the cell indication information may include at least an identification ID of the target cell, and the identification ID may be used to determine the target cell cell to support accurate cell switching of the terminal device.
  • the identification ID of the target cell may be a physical cell ID of the cell.
  • the target cell indicated by the identification ID can be used as the primary cell (PCell).
  • PCell primary cell
  • the target cell indicated by the identification ID can be used as the primary cell (PCell).
  • the secondary cell Scell before the switch can be used as the new secondary cell Scell after the switch by default.
  • all secondary cell Scells before the switch can be released by default, and a new secondary cell Scell can be reconfigured after the switch is completed. There is no restriction on this.
  • the secondary cell Scell before the switch can be used as the new secondary cell Scell after the switch by default.
  • all secondary cell Scells before the switch can be released by default, and a new secondary cell Scell can be reconfigured after the switch is completed. There is no restriction on this.
  • the MAC CE signaling used to indicate the switch may include at least an identifier of the radio resource control layer RRC configuration parameters to which the target cell belongs, and the identifier may be used to determine the corresponding RRC configuration parameters, which can be used to support the terminal device to perform accurate cell switching.
  • the MAC CE signaling used to indicate the switching may include at least the identifier of the cell group configuration CellGroupConfig to which the target cell belongs. This identifier can be used to determine the cell group configuration CellGroupConfig to which the target cell belongs.
  • the cell group configuration CellGroupConfig can be used to support the terminal device to accurately perform cell switching.
  • the MAC CE signaling used to indicate the switch may include at least an identifier of the cell group configuration CellGroupConfig to which the target cell belongs.
  • the identifier may be used to determine the cell group configuration CellGroupConfig to support the terminal device to switch to the target cell based on the cell group configuration CellGroupConfig indicated by the identifier.
  • only one cell group configuration CellGroupConfig identifier may be included in the MAC CE signaling used to indicate the switch, wherein the identifier is used to determine the master cell group (MCG).
  • the cell group corresponding to the cell group configuration CellGroupConfig indicated by the identifier may be defaulted to be the new master cell group (MCG), and the secondary cell group SCG before the switch may still be the secondary cell group SCG of the terminal device by default.
  • the secondary cell group SCG before the switch may be released, or an identifier may be introduced to indicate that the cell group cell group corresponding to the cell group configuration cellgroupconfig is MCG or SCG.
  • the identifiers of two cell group configurations CellGroupConfig can be indicated in the MAC CE signaling used to indicate the switching, that is, an identifier indicating one cell group configuration CellGroupConfig (the identifier is used to determine the master cell group (Master Cell Group, MCG)), and also indicating the identifier of another cell group configuration CellGroupConfig (the cell group corresponding to the cell group configuration CellGroupConfig indicated by the identifier is the new secondary cell group SCG), wherein whether an identifier corresponds to indicating MCG or SCG can be indicated by the first network device in an explicit or implicit manner, and there is no restriction on this.
  • the MAC CE signaling used to indicate the switch may include at least the index corresponding to the SpCellConfig to which the target cell belongs.
  • the index can be used to determine the corresponding SpCellConfig to support the terminal device to accurately switch to the target cell based on the SpCellConfig indicated by the index.
  • the index of SpCellConfig to which the target cell belongs can be designed differently, as shown below:
  • the MAC CE signaling used to indicate the switch can include at least the index corresponding to the SpCellConfig to which the target cell belongs. This index can be used to determine the SpCellConfig to support the terminal device to accurately switch to the target cell based on the SpCellConfig indicated by the index.
  • an index corresponding to the SpCellConfig to which the target cell belongs can be included in the MAC CE signaling used to indicate the switch.
  • the index is used to determine the primary cell (PCell).
  • the index can be used to instruct the terminal device to update the target cell to the primary cell PCell.
  • the secondary cell Scell before the switch can be used as the new secondary cell Scell after the switch by default.
  • all secondary cell Scells before the switch can be released by default, and a new secondary cell Scell can be reconfigured after the switch is completed. There is no restriction on this.
  • the MAC CE signaling used to indicate the switch may include an index corresponding to the SpCellConfig of the target cell, and the index is used to determine the primary cell (PCell). It may also include an index corresponding to the SpCellConfig of another target cell, and the other index is used to determine the primary secondary cell PSCell. Different indexes correspond to the indication of PCell or PSCell, and the first network device may indicate it in an explicit or implicit manner, without restriction.
  • the secondary cell Scell before the switch may be used as the new secondary cell Scell after the switch by default, or all secondary cell Scells before the switch may be released by default, and the new secondary cell Scell may be reconfigured after the switch is completed, without restriction.
  • a method for designing an indication message wherein the beam indication information of the target cell includes at least one of the following: a transmission configuration indication (TCI) state TCI state of the target cell, wherein the TCI state (TCI state) of the target cell is used to determine the beam of the target cell; activation indication information of at least one TCI state of the target cell, wherein the TCI state of the target cell is used to determine the beam of the target cell, thereby flexibly indicating the beam-related information of the target cell to the terminal device based on MAC CE signaling, and effectively supporting the terminal device to accurately switch to the target cell.
  • TCI transmission configuration indication
  • At least the TCI state of the target cell may be included in the MAC CE signaling, or the TCI states of multiple target cells may be activated in the MAC CE signaling, and then the TCI state of an activated target cell may be indicated through DCI signaling.
  • the principle of determining the beam of the target cell based on the indicated TCI state of the activated target cell can be explained as follows: the TCI state of the target cell will be associated with a reference signal, and the terminal device can receive the signal based on the beam in the target cell. If the signal received by a certain beam is the same as the reference signal associated with the TCI state of the target cell, then the beam receiving the signal is the beam of the target cell determined based on the indicated TCI state of the activated target cell. In short, the beam that can receive the reference signal associated with the indicated TCI state is the beam of the determined target cell, and there is no restriction on this.
  • multiple bits can be included in the MAC CE signaling.
  • the TCI state of the corresponding target cell can be activated to support joint DCI signaling to indicate the TCI state of a target cell. There is no restriction on this.
  • An embodiment of the present disclosure provides a method for designing an indication message, wherein the first indication message is carried in: DCI signaling; wherein the DCI signaling includes at least one of the following: cell indication information of the target cell, beam indication information of the target cell, so as to flexibly indicate to the terminal device to switch to the target cell based on the DCI signaling.
  • the indication information used to indicate the target cell related information can be called the cell indication information of the target cell, and the indication information used to indicate the beam related information of the target cell can be called the beam indication information of the target cell.
  • the cell indication information of the target cell and/or the beam indication information of the target cell for the DCI signaling, it is possible to accurately indicate the cell switching to the terminal device based on the DCI signaling.
  • a method for designing an indication message is provided in an embodiment of the present disclosure, wherein the DCI signaling includes a first indication field, wherein the value of the first indication field is used to indicate the cell indication information of the target cell, and the existing indication field of the DCI signaling can be reused to indicate information related to the target cell, thereby effectively avoiding occupying too much signaling resource overhead.
  • the first indication field can be, for example, a handover command Handover command field in the DCI signaling.
  • the value of the Handover command field in the DCI signaling can be configured based on information related to the target cell to indicate to the terminal device to switch the target cell based on the value of the Handover command field in the DCI signaling.
  • An embodiment of the present disclosure provides a method for designing an indication message, wherein the cell indication information includes any of the following:
  • DCI signaling is designed based on the design method of any of the above-mentioned indication messages to instruct the terminal device to perform cell switching based on the DCI signaling, which can effectively improve the flexibility and applicability of the switching indication and can effectively adapt to a variety of communication scenarios, so that the switching indication can be flexibly adapted to the personalized needs of the communication scenario.
  • the cell indication information of the target cell contained in the DCI signaling and the correspondence between the communication scenarios please refer to the cell indication information of the target cell contained in the above-mentioned MAC CE signaling and the correspondence between the communication scenarios, which will not be repeated here.
  • An embodiment of the present disclosure provides a method for designing an indication message, wherein the DCI signaling includes a second indication field, wherein the value of the second indication field is used to indicate the beam indication information of the target cell, thereby enabling timely indication of the beam of the target cell and effectively reducing the cell switching time.
  • the second indication field can be, for example, a transmission configuration indication TCI field in the DCI signaling.
  • the value of the TCI field in the DCI signaling can be configured based on the beam indication information of the target cell to indicate to the terminal device to switch the target cell based on the value of the TCI field in the DCI signaling.
  • the beam indication information of the target cell includes at least one of the following: indicating a TCI state of an activated target cell, wherein the indicated TCI state of the activated target cell is used to determine the beam of the target cell, thereby effectively indicating the beam-related information of the target cell based on DCI signaling, so as to support the terminal device to accurately switch to the target cell.
  • the first network device may first send a switching command to the terminal device, and after the switching command, indicate the TCI status of the target cell based on MAC CE signaling, or activate the TCI status of multiple target cells based on MAC CE signaling, and then indicate the TCI status of an activated target cell by DCI signaling, and the TCI status of the target cell can be used to determine the beam of the target cell.
  • the TCI status of multiple target cells can be activated in advance based on MAC CE signaling, and then the TCI status of an activated target cell is indicated in the TCI field of the DCI signaling for handover indication. If it is based on the unified TCI framework of Rel-17 (R17 unified TCI framework), the DCI signaling for handover indication is downlink DCI signaling (DownLink DCI, DL DCI).
  • DownLink DCI DownLink DCI, DL DCI
  • Fig. 4 is a flow chart of another switching indication method provided by an embodiment of the present disclosure, and the method is executed by a first network device.
  • the switching indication method in this embodiment can be applied to the first network device, and there is no limitation on this.
  • the first indication message sent by the first network device to the terminal device may be DCI signaling.
  • a corresponding feedback mechanism may also be set for the DCI signaling.
  • the terminal device correctly receives the DCI signaling it may feed back a feedback message to the first network device to indicate that it has correctly received the DCI signaling.
  • the feedback message may be called a second indication message, and the second indication message may be used to indicate that the terminal device has received the DCI signaling.
  • the method may include but is not limited to the following steps:
  • S104 In response to determining that the terminal device needs to switch to the target cell, DCI signaling is sent to the terminal device, wherein the DCI signaling is used to instruct the terminal device to switch to the target cell, and the target cell is determined by the beam measurement result.
  • S204 Receive a second indication message sent by the terminal device, wherein the second indication message is used to indicate that the terminal device has received the DCI signaling.
  • the first network device After the first network device sends the DCI signaling for the switching indication to the terminal device, if it is determined that the second indication message fed back by the terminal device is received, it can be determined that the terminal device has successfully received the DCI signaling.
  • the second indication message includes at least one of the following: a hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ) feedback message of DCI signaling, and a HARQ feedback message of TCI, which can effectively improve the indication flexibility of the feedback message that the terminal device has correctly received the DCI signaling, and effectively ensure the reliability of the switching indication based on the DCI signaling.
  • HARQ Hybrid Automatic Repeat Request
  • hybrid automatic repeat request HARQ feedback can be performed in the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) scheduled by UL DCI or the physical uplink control channel (Physical Uplink Control Channel, PUCCH) scheduled by DL DCI. If the DCI signaling does not have scheduling information, hybrid automatic repeat request HARQ feedback can be performed based on the PUCCH scheduled by DL DCI.
  • the HARQ feedback of the DCI signaling can also reuse the feedback message of the TCI state, that is, if the HARQ feedback message ACK of the TCI state is received, it is determined that the terminal device has successfully received the DCI signaling.
  • the MAC CE signaling it carries a HARQ feedback mechanism, which can guarantee the reliability of the switching indication based on the MAC CE signaling to a certain extent.
  • the corresponding feedback mechanism is designed for the DCI signaling in the disclosed embodiment, which can effectively improve the reliability of the switching indication based on the DCI signaling.
  • Fig. 5 is a flow chart of another switching indication method provided by an embodiment of the present disclosure, and the method is executed by a terminal device.
  • the switching indication method in this embodiment can be applied to a terminal device, and there is no limitation on this.
  • the method may include but is not limited to the following steps:
  • S105 Receive a first indication message sent by a first network device, wherein the first indication message is used to instruct the terminal device to switch to a target cell, and the target cell is determined by a beam measurement result.
  • the first network device of the service cell that currently provides communication services to the terminal device can send a dynamic switching indication to the terminal device.
  • a dynamic switching message can be sent to the terminal device.
  • the dynamic switching message can be called a first indication message.
  • the terminal device can receive the first indication message sent by the first network device, i.e., trigger switching to the target cell based on the content indicated by the first indication message.
  • the first indication message is sent to the terminal device, and the terminal device receives the first indication message sent by the first network device to switch to the target cell. Since the beam measurement result is based on L1 measurement, it does not need to be processed by L3 to obtain the cell measurement result, and the beam measurement result does not rely on RRC signaling to indicate the switch, thereby effectively reducing the time overhead of the switch indication and effectively improving the switching efficiency.
  • a switching indication method provided by an embodiment of the present disclosure can enable a terminal device to measure at least one beam, obtain a beam measurement result, and report the beam measurement result to a first network device, so as to quickly determine whether the terminal device needs to switch to a target cell based on the beam measurement result of L1, and effectively support the first network device to promptly indicate cell switching to the terminal device.
  • the beam measurement result may, for example, include the beam quality in each candidate cell and the beam quality in the service cell.
  • the beam measurement result may, for example, include the beam quality in each candidate cell and the beam quality in the service cell.
  • it may also include any other parameters that can represent the beam measurement status in each candidate cell and the service cell, and there is no limitation on this.
  • An embodiment of the present disclosure provides a method for designing an indication message, wherein the first indication message is carried in at least one of the following signalings:
  • Control unit MAC CE signaling of the media access control layer
  • the embodiment of the present disclosure provides a design method for an indication message, wherein the first indication message is carried in: MAC CE signaling; wherein the MAC CE signaling includes at least one of the following:
  • Beam indication information of the target cell Beam indication information of the target cell.
  • An embodiment of the present disclosure provides a method for designing an indication message, wherein the cell indication information includes any of the following:
  • An embodiment of the present disclosure provides a method for designing an indication message, wherein the beam indication information of the target cell includes at least one of the following:
  • TCI state of the target cell a transmission configuration indication TCI state of the target cell, wherein the TCI state of the target cell is used to determine a beam of the target cell;
  • Activation indication information of the TCI status of at least one target cell wherein the TCI status of the target cell is used to determine the beam of the target cell.
  • An embodiment of the present disclosure provides a method for designing an indication message, wherein the first indication message is carried in: DCI signaling; wherein the DCI signaling includes at least one of the following:
  • Beam indication information of the target cell Beam indication information of the target cell.
  • An embodiment of the present disclosure provides a method for designing an indication message, wherein the DCI signaling includes a first indication field, wherein a value of the first indication field is used to indicate cell indication information of a target cell.
  • An embodiment of the present disclosure provides a method for designing an indication message, wherein the cell indication information includes any of the following:
  • An embodiment of the present disclosure provides a method for designing an indication message, wherein the DCI signaling includes a second indication field, wherein the value of the second indication field is used to indicate the beam indication information of the target cell.
  • An embodiment of the present disclosure provides a method for designing an indication message, wherein the beam indication information of the target cell includes at least one of the following:
  • TCI state of an activated target cell Indicates a TCI state of an activated target cell, wherein the indicated TCI state of the activated target cell is used to determine the beam of the target cell.
  • Fig. 6 is a flow chart of another switching indication method provided by an embodiment of the present disclosure, and the method is executed by a terminal device.
  • the switching indication method in this embodiment can be applied to a terminal device, and there is no limitation on this.
  • the method may include but is not limited to the following steps:
  • S106 Receive DCI signaling sent by the first network device, wherein the DCI signaling is used to instruct the terminal device to switch to a target cell, and the target cell is determined by a beam measurement result.
  • S206 Send a second indication message to the first network device, wherein the second indication message is used to indicate that the terminal device has received the DCI signaling.
  • the terminal device After successfully receiving the DCI signaling, the terminal device can feedback a second indication message to the first network device. After the first network device sends the DCI signaling for switching indication to the terminal device, if it is determined that the second indication message fed back by the terminal device is received, it can be determined that the terminal device has successfully received the DCI signaling.
  • the second indication message includes at least one of the following: a hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ) feedback message of DCI signaling, and a HARQ feedback message of TCI, which can effectively improve the indication flexibility of the feedback message that the terminal device has correctly received the DCI signaling, and effectively ensure the reliability of the switching indication based on the DCI signaling.
  • HARQ Hybrid Automatic Repeat Request
  • Fig. 7 is a flow chart of another switching indication method provided by an embodiment of the present disclosure, and the method is executed by a terminal device.
  • the switching indication method in this embodiment can be applied to a terminal device, and there is no limitation on this.
  • the method may include but is not limited to the following steps:
  • S107 Receive a first indication message sent by the first network device, wherein the first indication message is used to instruct the terminal device to switch to a target cell, and the target cell is determined by a beam measurement result.
  • S207 Send a third indication message to the second network device, where the third indication message is used to indicate that the cell has been switched to the target cell.
  • the terminal device If the terminal device receives a first indication message sent by the first network device, it can trigger switching from the current service cell to the target cell based on the cell indication information, and then, after switching to the target cell, it can send an indication message to the second network device (for example, the target base station) to indicate that it has switched to the target cell.
  • This indication message can be called a third indication message.
  • a switching indication method provided by an embodiment of the present disclosure sends a third indication message to a second network device, including at least one of the following: sending a third indication message to the second network device based on a random access channel; sending a third indication message to the second network device based on reserved resources related to a target cell; sending a third indication message to the second network device based on resources scheduled by the first indication message, thereby enabling a terminal device to flexibly indicate to the second network device that the terminal device has switched to the target cell determined by a beam measurement result, thereby effectively improving the reliability of the transmission of the third indication message.
  • reserved resources include at least one of the following: physical uplink shared channel PUSCH resources; scheduling request (SR) resources, which can effectively improve the practicality of the switching indication.
  • the terminal device can switch to the target cell based on the following methods, such as randomly accessing the target cell, or after randomly accessing the target cell, the terminal device can additionally feedback a specific message to inform the second network device that the switch is complete.
  • the specific message can be an RRC ReconfigurationComplete message, or any other possible message, without limitation.
  • the third indication message can be sent to the second network device based on the reserved resources related to the target cell, or the scheduling request can be parsed from the first indication message, and some channel resources can be scheduled based on the scheduling request to send the third indication message to the second network device.
  • RACH-less random access channel
  • the reserved resources may be pre-configured by the first network device to the terminal device, and the reserved resources may be physical uplink shared channel PUSCH resources and scheduling request SR resources.
  • the first network device may also pre-configure the configuration information of the candidate cells for the terminal device.
  • the configuration information may include the configuration of the reference signal for measuring the beam of each candidate cell.
  • the TCI state and the reserved resources corresponding to each candidate cell may be configured for the terminal device.
  • the terminal device may then refer to the content configured by the first network device to perform beam measurement, cell switching, and confirmation of the completion of the switching, without any restriction.
  • the terminal device can receive a first indication message sent by the first network device, wherein the first indication message is used to instruct the terminal device to switch to the target cell, and the target cell is determined by the beam measurement result.
  • the terminal device sends a third indication message to the second network device, wherein the third indication message is used to indicate that the terminal device has switched to the target cell, so as to promptly inform the second network device that the terminal device has switched to the target cell determined by the beam measurement result, and promptly support the subsequent second network device to provide communication services to the terminal device based on the target cell.
  • Fig. 8 is a flow chart of another switching indication method provided by an embodiment of the present disclosure, and the method is executed by the second network device.
  • the switching indication method in this embodiment can be applied to the second network device, and there is no limitation on this.
  • the second network device may be, for example, a target base station, which is not limited.
  • the method may include but is not limited to the following steps:
  • S108 Determine that the terminal device has switched to a target cell, where the target cell is determined by a beam measurement result.
  • the terminal device after successfully switching to the target cell, informs the second network device that it has successfully switched to the target cell.
  • the second network device can promptly learn that the terminal device has switched to the target cell determined by the beam measurement result, so as to promptly perform subsequent communication services.
  • Fig. 9 is a flow chart of another switching indication method provided by an embodiment of the present disclosure, and the method is executed by the second network device.
  • the switching indication method in this embodiment can be applied to the second network device, and there is no limitation on this.
  • the second network device may be, for example, a target base station, which is not limited.
  • the method may include but is not limited to the following steps:
  • S109 Receive a third indication message sent by the terminal device, where the third indication message is used to indicate that the terminal device has switched to the target cell.
  • the terminal device after successfully switching to the target cell, the terminal device sends a third indication message to the second network device, wherein the third indication message is used to indicate that the terminal device has switched to the target cell, so that the terminal device can promptly know that it has switched to the target cell determined by the beam measurement result.
  • a switching indication method provided by an embodiment of the present disclosure receives a third indication message sent by a terminal device, comprising at least one of the following: receiving the third indication message sent by the terminal device based on a random access channel; receiving the third indication message sent by the terminal device based on reserved resources related to a target cell; receiving the third indication message sent by the terminal device based on resources scheduled by a first indication message, wherein the first indication message is used by a first network device to instruct the terminal device to switch to the target cell, and can flexibly learn that the terminal device has switched to the target cell determined by a beam measurement result, thereby effectively improving the flexibility and reliability of the transmission of the third indication message.
  • An embodiment of the present disclosure provides a switching indication method, wherein the reserved resources include at least one of the following: a physical uplink shared channel PUSCH resource; and a SR resource.
  • the network device provided by the embodiment of the present disclosure 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).
  • the CU-DU structure may be used to split the protocol layer of the network device, such as a base station, and the functions of some protocol layers are placed in the CU for centralized control, and the functions of the remaining part or all of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.
  • FIG. 10 is a flow chart of a switching indication method provided by the embodiment of the present disclosure. In FIG.
  • the first network device includes a source distributed unit DU
  • the second network device is a target distributed unit DU
  • the centralized unit CU is also included.
  • the centralized unit CU centrally controls the source distributed unit DU and the target distributed unit DU to support the cell switching of the terminal device.
  • the source distributed unit DU can be pre-configured for the terminal device, for example, including: configuration information of the candidate cell, which configuration information may include the configuration of the reference signal for measuring the beam of each candidate cell, and can also configure the TCI state for the terminal device, and the reserved resources corresponding to each candidate cell, without restriction.
  • the terminal device performs L1-based beam measurement based on the pre-configured content of the source distributed unit DU, obtains the beam measurement result, and reports the beam measurement result to the source distributed unit DU.
  • the centralized unit CU centrally controls the source distributed unit DU and the target distributed unit DU to support the cell switching of the terminal device.
  • the source distributed unit DU can send a first indication message to the terminal device, and the terminal device switches to the target cell based on the content indicated by the first indication message, and randomly accesses the target cell. Then the terminal device can send a third indication message to the target distributed unit DU, that is, the terminal device interacts with the target distributed unit DU to inform the target distributed unit DU that the terminal device has accessed the target cell to complete the cell switching process.
  • FIG11 is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure.
  • the communication device 110 shown in FIG11 may include a transceiver module 1101 and a processing module 1102.
  • the transceiver module 1101 may include a sending module and/or a receiving module, the sending module is used to implement a sending function, the receiving module is used to implement a receiving function, and the transceiver module 1101 may implement a sending function and/or a receiving function.
  • the communication device 110 may be a terminal device (such as the terminal device in the aforementioned method embodiment), or a device in the terminal device, or a device that can be used in conjunction with the terminal device.
  • the communication device 110 may be a network device (such as the first network device and/or the second network device in the aforementioned method embodiment), or a device in the network device, or a device that can be used in conjunction with the network device.
  • the communication device 110 on the first network device side, includes:
  • the transceiver module 1101 is used to send a first indication message to the terminal device in response to determining that the terminal device needs to switch to the target cell, wherein the first indication message is used to instruct the terminal device to switch to the target cell, and the target cell is determined by the beam measurement result.
  • the present disclosure provides a switching indication method, the method further comprising:
  • the embodiment of the present disclosure provides a handover indication method, wherein the first indication message is carried in at least one of the following signalings:
  • Control unit MAC CE signaling of the media access control layer
  • the embodiment of the present disclosure provides a handover indication method, wherein the first indication message is carried in: MAC CE signaling; wherein the MAC CE signaling includes at least one of the following:
  • Beam indication information of the target cell Beam indication information of the target cell.
  • the present disclosure provides a handover indication method, wherein the cell indication information includes any one of the following:
  • the present disclosure provides a handover indication method, wherein the beam indication information of the target cell includes at least one of the following:
  • TCI state of the target cell a transmission configuration indication TCI state of the target cell, wherein the TCI state of the target cell is used to determine a beam of the target cell;
  • Activation indication information of the TCI status of at least one target cell wherein the TCI status of the target cell is used to determine the beam of the target cell.
  • the embodiment of the present disclosure provides a handover indication method, wherein the first indication message is carried in: DCI signaling; wherein the DCI signaling includes at least one of the following:
  • Beam indication information of the target cell Beam indication information of the target cell.
  • An embodiment of the present disclosure provides a handover indication method, wherein DCI signaling includes a first indication field, wherein a value of the first indication field is used to indicate cell indication information of a target cell.
  • the present disclosure provides a handover indication method, wherein the cell indication information includes any one of the following:
  • An embodiment of the present disclosure provides a switching indication method, wherein DCI signaling includes a second indication field, wherein a value of the second indication field is used to indicate beam indication information of a target cell.
  • the present disclosure provides a handover indication method, wherein the beam indication information of the target cell includes at least one of the following:
  • TCI state of an activated target cell Indicates a TCI state of an activated target cell, wherein the indicated TCI state of the activated target cell is used to determine the beam of the target cell.
  • the present disclosure provides a switching indication method, the method further comprising:
  • the present disclosure provides a handover indication method, wherein the second indication message includes at least one of the following:
  • a first indication message is sent to the terminal device, wherein the first indication message is used to instruct the terminal device to switch to the target cell. Since the beam measurement result is the measurement result of L1, it does not need to be processed through L3 to obtain the cell measurement result, and the beam measurement result does not rely on RRC signaling to indicate the switch, thereby effectively reducing the time overhead of the switch indication and effectively improving the switching efficiency.
  • the communication device 110 on the terminal device side, includes:
  • the transceiver module 1101 is used to receive a first indication message sent by a first network device, wherein the first indication message is used to instruct the terminal device to switch to a target cell, and the target cell is determined by a beam measurement result.
  • the present disclosure provides a switching indication method, the method further comprising:
  • the embodiment of the present disclosure provides a handover indication method, wherein the first indication message is carried in at least one of the following signalings:
  • Control unit MAC CE signaling of the media access control layer
  • the embodiment of the present disclosure provides a handover indication method, wherein the first indication message is carried in: MAC CE signaling; wherein the MAC CE signaling includes at least one of the following:
  • Beam indication information of the target cell Beam indication information of the target cell.
  • the present disclosure provides a handover indication method, wherein the cell indication information includes any one of the following:
  • the present disclosure provides a handover indication method, wherein the beam indication information of the target cell includes at least one of the following:
  • TCI state of the target cell a transmission configuration indication TCI state of the target cell, wherein the TCI state of the target cell is used to determine a beam of the target cell;
  • Activation indication information of the TCI status of at least one target cell wherein the TCI status of the target cell is used to determine the beam of the target cell.
  • the embodiment of the present disclosure provides a handover indication method, wherein the first indication message is carried in: DCI signaling; wherein the DCI signaling includes at least one of the following:
  • Beam indication information of the target cell Beam indication information of the target cell.
  • An embodiment of the present disclosure provides a handover indication method, wherein DCI signaling includes a first indication field, wherein a value of the first indication field is used to indicate cell indication information of a target cell.
  • the present disclosure provides a handover indication method, wherein the cell indication information includes any one of the following:
  • An embodiment of the present disclosure provides a switching indication method, wherein DCI signaling includes a second indication field, wherein a value of the second indication field is used to indicate beam indication information of a target cell.
  • the present disclosure provides a handover indication method, wherein the beam indication information of the target cell includes at least one of the following:
  • TCI state of an activated target cell Indicates a TCI state of an activated target cell, wherein the indicated TCI state of the activated target cell is used to determine the beam of the target cell.
  • the present disclosure provides a switching indication method, the method further comprising:
  • a second indication message is sent to the first network device, wherein the second indication message is used to indicate that the terminal device has received the DCI signaling.
  • the present disclosure provides a handover indication method, wherein the second indication message includes at least one of the following:
  • the present disclosure provides a switching indication method, the method further comprising:
  • a third indication message is sent to the second network device, wherein the third indication message is used to indicate that switching to the target cell has been completed.
  • the present disclosure provides a handover indication method, which sends a third indication message to a second network device, including at least one of the following:
  • a third indication message is sent to the second network device.
  • the present disclosure provides a handover indication method, wherein the reserved resources include at least one of the following:
  • the first indication message is sent to the terminal device, and the terminal device receives the first indication message sent by the first network device to switch to the target cell. Since the beam measurement result is based on L1 measurement, it does not need to be processed by L3 to obtain the cell measurement result, and the beam measurement result does not rely on RRC signaling to indicate the switch, thereby effectively reducing the time overhead of the switch indication and effectively improving the switching efficiency.
  • the communication device 110 on the second network device side, includes:
  • the processing module 1102 is used to determine that the terminal device has switched to a target cell, wherein the target cell is determined by a beam measurement result.
  • the present disclosure provides a handover indication method for determining that a terminal device has been handed over to a target cell, including:
  • the present disclosure provides a switching indication method, which receives a third indication message sent by a terminal device, including at least one of the following:
  • a third indication message sent by the terminal device is received, wherein the first indication message is used by the first network device to instruct the terminal device to switch to the target cell.
  • the present disclosure provides a handover indication method, wherein the reserved resources include at least one of the following:
  • the terminal device after successfully switching to the target cell, informs the second network device that it has successfully switched to the target cell.
  • the second network device can promptly learn that the terminal device has switched to the target cell determined by the beam measurement result, so as to promptly perform subsequent communication services.
  • FIG12 is a schematic diagram of the structure of another communication device provided in an embodiment of the present disclosure.
  • the communication device 120 may be a terminal device (such as the terminal device in the aforementioned method embodiment), or a network device (such as the first network device and/or the second network device in the aforementioned method embodiment), or a chip, a chip system, or a processor that supports the terminal device to implement the aforementioned method, or a chip, a chip system, or a processor that supports the network device to implement the aforementioned method.
  • the device may be used to implement the method described in the aforementioned method embodiment, and the specific details may refer to the description in the aforementioned method embodiment.
  • the communication device 120 may include one or more processors 1201.
  • the processor 1201 may be a general-purpose processor or a dedicated processor, etc.
  • it may be a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and communication data
  • the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a computer program, and process the data of the computer program.
  • the communication device 120 may also include one or more memories 1202, on which a computer program 1204 may be stored, and the processor 1201 may store a computer program 1203.
  • the processor 1201 executes the computer program 1204 and/or the computer program 1203 so that the communication device 120 performs the method described in the above method embodiment.
  • data may also be stored in the memory 1202.
  • the communication device 120 and the memory 1202 may be provided separately or integrated together.
  • the communication device 120 may further include a transceiver 1205 and an antenna 1206.
  • the transceiver 1205 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., for implementing a transceiver function.
  • the transceiver 1205 may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., for implementing a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., for implementing a transmitting function.
  • the communication device 120 may further include one or more interface circuits 1207.
  • the interface circuit 1207 is used to receive code instructions and transmit them to the processor 1201.
  • the processor 1201 runs the code instructions to enable the communication device 120 to execute the method described in the above method embodiment.
  • the processor 1201 may include a transceiver for implementing receiving and sending functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated.
  • 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 transmitting or delivering signals.
  • the processor 1201 may store a computer program 1203, which runs on the processor 1201 and enables the communication device 120 to perform the method described in the above method embodiment.
  • the computer program 1203 may be fixed in the processor 1201, in which case the processor 1201 may be implemented by hardware.
  • the communication device 120 may include a circuit that can implement the functions of sending or receiving or communicating in the aforementioned method embodiments.
  • the processor and transceiver described in the present disclosure may be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc.
  • the processor and transceiver may also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS N-type metal oxide semiconductor
  • PMOS P-type metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a terminal device (such as the terminal device in the aforementioned method embodiment) or a network device (such as the first network device and/or the second network device in the aforementioned method embodiment), but the scope of the communication device described in the present disclosure is not limited thereto, and the structure of the communication device may not be limited by FIG. 12.
  • the communication device may be an independent device or may be part of a larger device.
  • the communication device may be:
  • the IC set may also include a storage component for storing data and computer programs;
  • ASIC such as modem
  • the communication device may be a chip or a chip system
  • Figure 13 is a schematic diagram of the structure of a chip in an embodiment of the present disclosure.
  • the chip shown in Figure 13 includes a processor 1301 and an interface 1302.
  • the number of processors 1301 may be one or more, and the number of interfaces 1302 may be multiple.
  • the processor 1301 is used to implement S105 etc. in FIG. 5 , S106 , S206 etc. in FIG. 6 , and S107 , S207 etc. in FIG. 7 .
  • the processor 1301 is used to implement S102 etc. in FIG. 2 , S103 etc. in FIG. 3 , S104 etc. in FIG. 4 , S204 , S108 etc. in FIG. 8 , and S109 etc. in FIG. 9 .
  • the chip further includes a memory 1303, and the memory 1303 is used to store necessary computer programs and data.
  • the embodiments of the present disclosure also provide a communication system, which includes the communication device in the embodiment of FIG. 11 as a terminal device (such as the terminal device in the embodiment of the method described above) and the communication device as a network device (such as the first network device and/or the second network device in the embodiment of the method described above), or the system includes the communication device in the embodiment of FIG. 12 as a terminal device (such as the terminal device in the embodiment of the method described above) and the communication device as a network device (such as the first network device and/or the second network device in the embodiment of the method described above).
  • a communication system which includes the communication device in the embodiment of FIG. 11 as a terminal device (such as the terminal device in the embodiment of the method described above) and the communication device as a network device (such as the first network device and/or the second network device in the embodiment of the method described above), or the system includes the communication device in the embodiment of FIG. 12 as a terminal device (such as the terminal device in the embodiment of the method described above) and the communication device as
  • the present disclosure also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.
  • the present disclosure also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.
  • the computer program product includes one or more computer programs.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer program can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated.
  • the available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.
  • a magnetic medium e.g., a floppy disk, a hard disk, a magnetic tape
  • an optical medium e.g., a high-density digital video disc (DVD)
  • DVD high-density digital video disc
  • SSD solid state disk
  • the corresponding relationships shown in the tables in the present disclosure can be configured or predefined.
  • the values of the information in each table are only examples and can be configured as other values, which are not limited by the present disclosure.
  • the corresponding relationships shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc.
  • the names of the parameters shown in the titles of the above tables can also use other names that can be understood by the communication device, and the values or representations of the parameters can also be other values or representations that can be understood by the communication device.
  • other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables.
  • the predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

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Abstract

本公开实施例公开了一种切换指示方法、装置、设备、芯片***及存储介质，可以应用于通信***中，该方法包括：响应于确定终端设备需切换至目标小区，向终端设备发送第一指示消息，其中，第一指示消息用于指示终端设备切换至目标小区，目标小区由波束测量结果确定。通过实施本公开的方法，由于波束测量结果为L1的测量结果，而不需要经过L3处理得到小区测量结果，并且波束测量结果不会依赖RRC信令来指示切换，从而有效地减少切换指示的时间开销，有效提升切换效率。

Description

切换指示方法、装置、设备、芯片***及存储介质 技术领域
本公开涉及通信技术领域，尤其涉及一种切换指示方法、装置、设备、芯片***及存储介质。
背景技术
当终端设备处于连接态时，网络设备通过切换过程实现对终端设备的移动性管理。传统的网络控制(Network Controlled)的移动性(mobility)包括小区级的移动性(cell level)和波束级的移动性(beam level)。其中，小区级的移动性依赖于无线资源控制层(Radio Resource Control，RRC)信令。在一些版本的通信协议中(例如，第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)的第18版(Rel-18))，引入针对以层一(Layer 1，L1)/层二(Layer 2，L2)为中心的小区间移动性(L1/L2-based inter-cell mobility)进行增强的概念。
相关技术中，对终端设备的移动性管理，通常基于层三(Layer 3，L3)小区测量结果，会依赖RRC信令，从而引入较多时间开销，影响切换效率。
发明内容
本公开实施例提供一种切换指示方法、装置、设备、芯片***、存储介质、计算机程序及计算机程序产品，可应用于通信技术领域中，能够有效地减少切换指示的时间开销，有效提升切换效率。
第一方面，本公开实施例提供一种切换指示方法，被第一网络设备执行，该方法包括：响应于确定终端设备需切换至目标小区，向终端设备发送第一指示消息，其中，第一指示消息用于指示终端设备切换至目标小区，目标小区由波束测量结果确定。
本公开实施例提供一种切换指示方法，方法还包括：
接收终端设备上报的波束测量结果；
根据波束测量结果，确定终端设备需切换至目标小区。
本公开实施例提供一种切换指示方法，第一指示消息承载在以下至少一项信令中：
媒体接入控制层的控制单元MAC CE信令；
下行控制信息DCI信令。
本公开实施例提供一种切换指示方法，第一指示消息承载在：MAC CE信令；其中，MAC CE信令包括以下至少一项：
目标小区的小区指示信息；
目标小区的波束指示信息。
本公开实施例提供一种切换指示方法，小区指示信息包括以下任一项：
目标小区的标识；
目标小区所属的无线资源控制层RRC配置参数的标识；
目标小区所属的小区组配置CellGroupConfig的标识；
目标小区所属的特殊小区配置SpCellConfig对应的索引。
本公开实施例提供一种切换指示方法，目标小区的波束指示信息包括以下至少一项：
目标小区的传输配置指示TCI状态，其中，目标小区的TCI状态被用于确定目标小区的波束；
至少一个目标小区的TCI状态的激活指示信息，其中，目标小区的TCI状态被用于确定目标小区的波束。
本公开实施例提供一种切换指示方法，第一指示消息承载在：DCI信令；其中，DCI信令包括以下至少一项：
目标小区的小区指示信息；
目标小区的波束指示信息。
本公开实施例提供一种切换指示方法，DCI信令包括第一指示域，其中，第一指示域的值用于指示小区指示信息。
本公开实施例提供一种切换指示方法，小区指示信息包括以下任一项：
目标小区的标识；
目标小区所属的无线资源控制层RRC配置参数的标识；
目标小区所属的小区组配置CellGroupConfig的标识；
目标小区所属的特殊小区配置SpCellConfig对应的索引。
本公开实施例提供一种切换指示方法，DCI信令包括第二指示域，其中，第二指示域的值用于指示目标小区的波束指示信息。
本公开实施例提供一种切换指示方法，目标小区的波束指示信息包括以下至少一项：
指示一个已激活的目标小区的TCI状态，其中，所指示的已激活目标小区的TCI状态被用于确定目标小区的波束。
本公开实施例提供一种切换指示方法，方法还包括：
接收终端设备发送的第二指示消息，其中，第二指示消息用于指示终端设备已接收到DCI信令。
本公开实施例提供一种切换指示方法，第二指示消息包括以下至少一项：
DCI信令的混合自动重传请求HARQ反馈消息；
TCI的HARQ反馈消息。
第二方面，本公开实施例提供一种切换指示方法，被终端设备执行，该方法包括：接收第一网络设备发送的第一指示消息，其中，第一指示消息用于指示终端设备切换至目标小区，目标小区由波束测量结果确定。
本公开实施例提供一种切换指示方法，方法还包括：
对至少一个波束进行测量，得到波束测量结果；
将波束测量结果上报至第一网络设备。
本公开实施例提供一种切换指示方法，第一指示消息承载在以下至少一项信令中：
媒体接入控制层的控制单元MAC CE信令；
下行控制信息DCI信令。
本公开实施例提供一种切换指示方法，第一指示消息承载在：MAC CE信令；其中，MAC CE信令包括以下至少一项：
目标小区的小区指示信息；
目标小区的波束指示信息。
本公开实施例提供一种切换指示方法，小区指示信息包括以下任一项：
目标小区的标识；
目标小区所属的无线资源控制层RRC配置参数的标识；
目标小区所属的小区组配置CellGroupConfig的标识；
目标小区所属的特殊小区配置SpCellConfig对应的索引。
本公开实施例提供一种切换指示方法，目标小区的波束指示信息包括以下至少一项：
目标小区的传输配置指示TCI状态，其中，目标小区的TCI状态被用于确定目标小区的波束；
至少一个目标小区的TCI状态的激活指示信息，其中，目标小区的TCI状态被用于确定目标小区的波束。
本公开实施例提供一种切换指示方法，第一指示消息承载在：DCI信令；其中，DCI信令包括以下至少一项：
目标小区的小区指示信息；
目标小区的波束指示信息。
本公开实施例提供一种切换指示方法，DCI信令包括第一指示域，其中，第一指示域的值用于指示小区指示信息。
本公开实施例提供一种切换指示方法，小区指示信息包括以下任一项：
目标小区的标识；
目标小区所属的无线资源控制层RRC配置参数的标识；
目标小区所属的小区组配置CellGroupConfig的标识；
目标小区所属的特殊小区配置SpCellConfig对应的索引。
本公开实施例提供一种切换指示方法，DCI信令包括第二指示域，其中，第二指示域的值用于指示目标小区的波束指示信息。
本公开实施例提供一种切换指示方法，目标小区的波束指示信息包括以下至少一项：
指示一个已激活的目标小区的TCI状态，其中，所指示的已激活目标小区的TCI状态被用于确定目标小区的波束。
本公开实施例提供一种切换指示方法，方法还包括：
向第一网络设备发送第二指示消息，其中，第二指示消息用于指示终端设备已接收到DCI信令。
本公开实施例提供一种切换指示方法，第二指示消息包括以下至少一项：
DCI信令的混合自动重传请求HARQ反馈消息；
TCI的HARQ反馈消息。
本公开实施例提供一种切换指示方法，方法还包括：
向第二网络设备发送第三指示消息，其中，第三指示消息用于指示已切换至目标小区。
本公开实施例提供一种切换指示方法，向第二网络设备发送第三指示消息，包括以下至少一项：
基于随机接入信道，向第二网络设备发送第三指示消息；
基于与目标小区相关的预留资源，向第二网络设备发送第三指示消息；
基于第一指示消息调度的资源，向第二网络设备发送第三指示消息。
本公开实施例提供一种切换指示方法，预留资源包括以下至少一项：
物理上行共享信道PUSCH资源；
调度请求SR资源。
第三方面，本公开实施例提供一种切换指示方法，被第二网络设备执行，该方法包括：确定终端设备已切换至目标小区，其中，目标小区由波束测量结果确定。
本公开实施例提供一种切换指示方法，确定终端设备已切换至目标小区，包括：
接收终端设备发送的第三指示消息，其中，第三指示消息用于指示终端设备已切换至目标小区。
本公开实施例提供一种切换指示方法，接收终端设备发送的第三指示消息，包括以下至少一项：
基于随机接入信道，接收终端设备发送的第三指示消息；
基于与目标小区相关的预留资源，接收终端设备发送的第三指示消息；
基于第一指示消息调度的资源，接收终端设备发送的第三指示消息，其中，第一指示消息用于第一网络设备指示终端设备切换至目标小区。
本公开实施例提供一种切换指示方法，预留资源包括以下至少一项：
物理上行共享信道PUSCH资源；
调度请求SR资源。
第四方面，本公开实施例提供一种通信装置，该通信装置具有实现上述第一方面的方法中第一网络设备的部分或全部功能，比如通信装置的功能可具备本公开中的部分或全部实施例中的功能，也可以具备单独实施本公开中的任一个实施例的功能。功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的单元或模块。
可选的，在本公开的一个实施例之中，该通信装置的结构中可包括收发模块和处理模块，处理模块被配置为支持通信装置执行上述方法中相应的功能。收发模块用于支持通信装置与其他设备之间的通信。通信装置还可以包括存储模块，存储模块用于与收发模块和处理模块耦合，其保存通信装置必要的计算机程序和数据。
作为示例，处理模块可以为处理器，收发模块可以为收发器或通信接口，存储模块可 以为存储器。
第五方面，本公开实施例提供另一种通信装置，该通信装置具有实现上述第二方面的方法示例中终端设备的部分或全部功能，比如通信装置的功能可具备本公开中的部分或全部实施例中的功能，也可以具备单独实施本公开中的任一个实施例的功能。功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的单元或模块。
可选的，在本公开的一个实施例之中，该通信装置的结构中可包括收发模块和处理模块，该处理模块被配置为支持通信装置执行上述方法中相应的功能。收发模块用于支持通信装置与其他设备之间的通信。通信装置还可以包括存储模块，存储模块用于与收发模块和处理模块耦合，其保存通信装置必要的计算机程序和数据。
第六方面，本公开实施例提供另一种通信装置，该通信装置具有实现上述第三方面的方法示例中第二网络设备的部分或全部功能，比如通信装置的功能可具备本公开中的部分或全部实施例中的功能，也可以具备单独实施本公开中的任一个实施例的功能。功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的单元或模块。
可选的，在本公开的一个实施例之中，该通信装置的结构中可包括收发模块和处理模块，该处理模块被配置为支持通信装置执行上述方法中相应的功能。收发模块用于支持通信装置与其他设备之间的通信。通信装置还可以包括存储模块，存储模块用于与收发模块和处理模块耦合，其保存通信装置必要的计算机程序和数据。
第七方面，本公开实施例提供一种通信装置，该通信装置包括处理器，当该处理器调用存储器中的计算机程序时，执行上述第一方面的切换指示方法。
第八方面，本公开实施例提供一种通信装置，该通信装置包括处理器，当该处理器调用存储器中的计算机程序时，执行上述第二方面的切换指示方法。
第九方面，本公开实施例提供一种通信装置，该通信装置包括处理器，当该处理器调用存储器中的计算机程序时，执行上述第三方面的切换指示方法。
第十方面，本公开实施例提供一种通信装置，该通信装置包括处理器和存储器，该存储器中存储有计算机程序；处理器执行该存储器所存储的计算机程序，以使该通信装置执行上述第一方面的切换指示方法。
第十一方面，本公开实施例提供一种通信装置，该通信装置包括处理器和存储器，该存储器中存储有计算机程序；处理器执行该存储器所存储的计算机程序，以使该通信装置执行上述第二方面的切换指示方法。
第十二方面，本公开实施例提供一种通信装置，该通信装置包括处理器和存储器，该存储器中存储有计算机程序；处理器执行该存储器所存储的计算机程序，以使该通信装置执行上述第三方面的切换指示方法。
第十三方面，本公开实施例提供一种通信装置，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，该处理器用于运行代码指令以使该装置执行 上述第一方面的切换指示方法。
第十四方面，本公开实施例提供一种通信装置，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，该处理器用于运行代码指令以使该装置执行上述第二方面的切换指示方法。
第十五方面，本公开实施例提供一种通信装置，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，该处理器用于运行代码指令以使该装置执行上述第三方面的切换指示方法。
第十六方面，本公开实施例提供一种通信***，该***包括第四方面的通信装置、第五方面的通信装置以及第六方面的通信装置，或者，该***包括第七方面的通信装置、第八方面的通信装置以及第九方面的通信装置，或者，该***包括第十方面的通信装置、第十一方面的通信装置以及第十二方面的通信装置，或者，该***包括第十三方面的通信装置、第十四方面的通信装置以及第十五方面的通信装置。
第十七方面，本公开实施例提供一种计算机可读存储介质，用于储存为上述终端设备所用的指令，当指令被执行时，使终端设备执行上述的切换指示方法。
第十八方面，本公开还提供一种包括计算机程序的计算机程序产品，当其在计算机上运行时，使得计算机执行上述的切换指示方法。
第十九方面，本公开提供一种芯片***，该芯片***包括至少一个处理器和接口，用于支持第一网络设备实现第一方面所涉及的功能，例如，确定或处理上述方法中所涉及的数据和信息中的至少一种。
在一种可能的设计中，芯片***还包括存储器，存储器，用于保存第一网络设备必要的计算机程序和数据。该芯片***，可以由芯片构成，也可以包括芯片和其他分立器件。
第二十方面，本公开提供一种芯片***，该芯片***包括至少一个处理器和接口，用于支持终端设备实现第二方面所涉及的功能，例如，确定或处理上述方法中所涉及的数据和信息中的至少一种。
在一种可能的设计中，芯片***还包括存储器，存储器，用于保存终端设备必要的计算机程序和数据。该芯片***，可以由芯片构成，也可以包括芯片和其他分立器件。
第二十一方面，本公开提供一种芯片***，该芯片***包括至少一个处理器和接口，用于支持第三网络设备实现第三方面所涉及的功能，例如，确定或处理上述方法中所涉及的数据和信息中的至少一种。
在一种可能的设计中，芯片***还包括存储器，存储器，用于保存第三网络设备必要的计算机程序和数据。该芯片***，可以由芯片构成，也可以包括芯片和其他分立器件。
第二十二方面，本公开提供一种计算机程序，当其在计算机上运行时，使得计算机执行上述的切换指示方法。
综上，在本公开实施例提供的切换指示方法、装置、设备、芯片***、存储介质、计算机程序及计算机程序产品，可以实现以下技术效果：
通过在根据波束测量结果确定终端设备需切换至目标小区时，向终端设备发送第一指 示消息，其中，第一指示消息用于指示终端设备切换至目标小区，由于波束测量结果为L1的测量结果，而不需要经过L3处理得到小区测量结果，并且波束测量结果不会依赖RRC信令来指示切换，从而有效地减少切换指示的时间开销，有效提升切换效率。
附图说明
为了更清楚地说明本公开实施例或背景技术中的技术方案，下面将对本公开实施例或背景技术中所需要使用的附图进行说明。
图1为本公开实施例提供的一种通信***的架构示意图；
图2是本公开实施例提供的一种切换指示方法的流程示意图；
图3是本公开实施例提供的一种切换指示方法的流程示意图；
图4是本公开实施例提供的另一种切换指示方法的流程示意图；
图5是本公开实施例提供的另一种切换指示方法的流程示意图；
图6是本公开实施例提供的另一种切换指示方法的流程示意图；
图7是本公开实施例提供的又一种切换指示方法的流程示意图；
图8是本公开实施例提供的又一种切换指示方法的流程示意图；
图9是本公开实施例提供的又一种切换指示方法的流程示意图；
图10是本公开实施例提供的在一种切换指示方法的流程示意图；
图11为本公开实施例提供的一种通信装置的结构示意图；
图12是本公开实施例提供的另一种通信装置的结构示意图；
图13是本公开实施例的芯片的结构示意图。
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公开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、本公开实施例的一些方面相一致的装置和方法的例子。
在本公开实施例使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开实施例。在本公开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，尽管在本公开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，在不脱离本公开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”。
为了便于理解，首先介绍本公开涉及的术语。
1、小区切换(Channel Switch)。
在无线通信***中，当终端设备从一个小区(指基站或者基站的覆盖范围)移动到另 一个小区时，为了保持移动用户的不中断通信需要进行的信道切换。如何成功并快捷地完成小区切换，是无线通信***中蜂窝小区***设计的重要方面之一。
2、随机接入(Random Access)。
随机接入，是指从用户发送随机接入前导码开始尝试接入网络到与网络间建立起基本的信令连接之前的过程，随机接入是移动通信***中非常关键的步骤，也是终端与基站建立通信链路的最后一步。随机接入分为竞争性随机接入和非竞争性随机接入。
3、无线资源控制(Radio Resource Control，RRC)。
无线资源控制，又称为无线资源管理(Radio Resource Management，RRM)或者无线资源分配(Radio Resource Allocation，RRA)，是指通过一定的策略和手段进行无线资源管理、控制和调度，在满足服务质量的要求下，尽可能地充分利用有限的无线网络资源，确保到达规划的覆盖区域，尽可能地提高业务容量和资源利用率。
4、下行控制信息(Downlink Control Information，DCI)。
下行控制信息，是指由下行物理控制信道(Physical Downlink Control Channel，PDCCH)承载，eNB发给UE的下行控制信息，包括上下行资源分配、HARQ信息、功率控制等。
为了更好的理解本公开实施例公开的一种切换指示方法，下面首先对本公开实施例适用的通信***进行描述。
请参见图1，图1为本公开实施例提供的一种通信***的架构示意图。该通信***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公开实施例的限定，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***以包括两个网络设备101和一个终端设备102为例。
需要说明的是，本公开实施例的技术方案可以应用于各种通信***。例如：长期演进(long term evolution，LTE)***、第五代(5th generation，5G)移动通信***、5G新空口(new radio，NR)***，或者其他未来的新型移动通信***等。
本公开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***中的下一代基站(next generation NodeB，gNB)、其他未来移动通信***中的基站或无线保真(wireless fidelity，WiFi)***中的接入节点等。本公开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。
本公开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。
本公开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。
本公开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。
可以理解的是，本公开实施例描述的通信***是为了更加清楚的说明本公开实施例的技术方案，并不构成对于本公开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***架构的演变和新业务场景的出现，本公开实施例提供的技术方案对于类似的技术问题，同样适用。
其中，在小区切换过程中，当前为终端设备提供通信服务的小区，可以被称为服务小区，服务小区的网络设备，可以被称为第一网络设备，第一网络设备例如小区切换过程中的源基站，相应的，需切换至的服务小区，可以被称为目标小区，目标小区的网络设备，可以被称为第二网络设备，第二网络设备例如小区切换过程中的目标基站，对此不做限制。
下面结合附图对本公开所提供的切换指示方法及其装置进行详细地介绍。图2是本公开实施例提供的一种切换指示方法的流程示意图，该方法由第一网络设备执行。本实施例中的切换指示方法可以应用在第一网络设备中，对此不做限制。
如图2所示，该方法可以包括但不限于如下步骤：
S102：响应于确定终端设备需切换至目标小区，向终端设备发送第一指示消息，其中，第一指示消息用于指示终端设备切换至目标小区，目标小区由波束测量结果确定。
本实施例中，可以由当前为终端设备提供通信服务的服务小区的第一网络设备，向终端设备发送动态的切换指示，比如可以向终端设备发送动态切换消息，该动态切换消息可以被称为第一指示消息。
本公开实施例中第一网络设备可以基于终端设备的波束测量结果，判决终端设备是否需切换至目标小区，该波束测量结果可以由终端设备上报至第一网络设备，该波束测量结果可以例如包括各个候选小区和服务小区中波束质量，波束质量，可以例如为层一参考信号接收功率(Layer 1 Reference Signal Receiving Power，L1-RSRP)，或者层一信号与干扰加噪声比(Layer 1 Signal to Interference plus Noise Ratio，L1-SINR)，第一网络设备可以根据该波束测量结果来判决终端设备是否需切换至目标小区，响应于确定终端设备需切换至目标小区，向终端设备发送第一指示消息，以基于第一指示消息指示终端设备切换至目标小区。
本公开实施例中，波束测量结果为L1的测量结果，而不需要经过L3处理得到小区测量结果，并且波束测量结果不会依赖RRC信令来指示切换，从而有效地减少切换指示的时间开销，有效提升切换效率。
本实施例中，通过在根据波束测量结果确定终端设备需切换至目标小区时，向终端设备发送第一指示消息，其中，第一指示消息用于指示终端设备切换至目标小区，由于波束测量结果为L1的测量结果，而不需要经过L3处理得到小区测量结果，并且波束测量结果不会依赖RRC信令来指示切换，从而有效地减少切换指示的时间开销，有效提升切换效率。
本公开实施例提供的一种切换指示方法，第一网络设备可以接收终端设备上报的波束测量结果，并根据波束测量结果，确定终端设备需切换至目标小区，以实现基于L1的波束测量结果快速地确定出终端设备是否需要切换至目标小区，有效支持第一网络设备向终端设备及时地指示小区切换。
其中，该波束测量结果可以例如包括各个候选小区中的波束质量，和服务小区中的波束质量，当然，也可以包括其他任意能够表示各个候选小区以及服务小区中波束测量情况的参数，对此不做限制。
第一网络设备在接收到终端设备上报的波束测量结果之后，可以基于波束测量结果分析候选小区的服务质量是否优于服务小区，如果是，则可以将优于服务小区的候选小区作为目标小区，而后向终端设备发出切换指示，对此不做限制。
图3是本公开实施例提供的一种切换指示方法的流程示意图，该方法由第一网络设备执行。本实施例中的切换指示方法可以应用在第一网络设备中，对此不做限制。
如图3所示，该方法可以包括但不限于如下步骤：
S103：响应于确定终端设备需切换至目标小区，向终端设备发送媒体接入控制层的控制单元MAC CE信令和/或下行控制信息DCI信令，其中，媒体接入控制层的控制单元MAC CE信令和/或下行控制信息DCI信令用于指示终端设备切换至目标小区，目标小区由波束测量结果确定。
本公开实施例中，第一网络设备根据波束测量结果判决终端设备需切换至目标小区时，可以向终端设备发送MAC CE信令和/或DCI信令，以基于MAC CE信令和/或DCI信令来指示终端设备切换至目标小区。
本公开实施例中，第一网络设备可以向终端设备发送MAC CE信令，以基于MAC CE信令来指示终端设备切换至目标小区，或者，第一网络设备可以向终端设备发送DCI信令，以基于DCI信令来指示终端设备切换至目标小区，或者，第一网络设备可以向终端设备发送MAC CE信令和DCI信令，以基于MAC CE信令和DCI信令来指示终端设备切换至目标小区，又或者，第一网络设备还可以向终端设备发送一个切换命令，以及MAC CE信令和DCI信令，以基于一个切换命令，以及MAC CE信令和DCI信令来指示终端设备切换至目标小区，对此不做限制。
本实施例中，在确定终端设备需切换至目标小区时，向终端设备发送媒体接入控制层的控制单元MAC CE信令和/或下行控制信息DCI信令，以指示终端设备切换至目标小区，能够在不依赖RRC信令来指示切换的同时，由第一网络设备基于MAC CE信令和/或DCI信令指示终端设备切换至目标小区，有效地指示终端设备进行小区切换，并且较大程度提升切换效率。
本公开实施例中提供了一种指示消息的设计方法，具体如下所示：
本公开实施例中提供了一种指示消息的设计方法，第一指示消息承载在：MAC CE信令；其中，MAC CE信令包括以下至少一项：目标小区的小区指示信息；目标小区的波束指示信息，实现基于MAC CE信令向终端设备灵活地指示切换至目标小区。
其中，用于指示目标小区相关信息的指示信息，可以被称为小区指示信息，而用于指示目标小区的波束相关的指示信息，可以被称为波束指示信息。
通过为MAC CE信令设计小区指示信息，和/或目标小区的波束指示信息，能够实现准确地基于MAC CE信令向终端设备指示小区切换。
本公开实施例中提供了一种指示消息的设计方法，小区指示信息包括以下任一项：
目标小区的标识；
目标小区所属的无线资源控制层RRC配置参数的标识；
目标小区所属的小区组配置CellGroupConfig的标识；
目标小区所属的特殊小区配置SpCellConfig对应的索引。
也即是说，本公开实施例中基于上述任一种指示消息的设计方法来设计MAC CE信令，以基于MAC CE信令指示终端设备进行小区切换，能够有效提升切换指示的灵活性和适用性，能够有效适配多种通信场景，从而使得切换指示能够灵活适配通信场景的个性化需求。
举例而言，小区指示信息可以至少包含目标小区的标识ID，该标识可以被用于确定出 目标小区cell，用于支持终端设备准确地进行小区切换，该目标小区的标识ID，可以为小区的物理ID(physical cell ID)。
举例而言，如果是非载波聚合(Carrier Aggregation，CA)场景，可以将该标识ID指示的目标小区cell作为主小区(Primary Cell，PCell)。
举例而言，如果是载波聚合CA的场景，可以将该标识ID指示的目标小区cell作为主小区(Primary Cell，PCell)，对于新的辅小区Scell，可以默认将切换之前的辅小区Scell作为切换之后新的辅小区Scell，或者，还可以默认将切换之前的辅小区Scell全部释放，并在切换完成之后重新配置新的辅小区Scell，对此不做限制。
举例而言，如果是双连接(Dual Connection，DC)场景，则需要额外的标识指示该目标小区cell作为主小区PCell还是主辅小区(Primary Secondary Cell，PSCell)，而后，对于新的辅小区Scell，可以默认将切换之前的辅小区Scell作为切换之后新的辅小区Scell，或者，还可以默认将切换之前的辅小区Scell全部释放，并在切换完成之后重新配置新的辅小区Scell，对此不做限制。
举例而言，如果每个候选小区cell的配置参数包含在无线资源控制层重配置参数RRCReconfiguration中，则可以在用于指示切换的MAC CE信令中至少包含目标小区cell所属的无线资源控制层RRC配置参数的标识，该标识可以被用于确定对应的RRC配置参数，该对应的RRC配置参数能够被用于支持终端设备进行准确地小区切换。
举例而言，如果每个候选小区cell的配置参数已包含在小区组配置信息元素CellGroupConfig IE(Information Element)中，可以在用于指示切换的MAC CE信令中至少包含目标小区cell所属的小区组配置CellGroupConfig的标识，该标识可以被用于确定目标小区cell所属的小区组配置CellGroupConfig，该小区组配置CellGroupConfig能够被用于支持终端设备准确地进行小区切换。
针对不同的通信场景，可以对目标小区cell所属的小区组配置CellGroupConfig的标识有不同的设计方式，举例说明如下：
举例而言，如果是非DC场景，则可以在用于指示切换的MAC CE信令中至少包含目标小区所属的小区组配置CellGroupConfig的标识，该标识可以被用于确定小区组配置CellGroupConfig，以支持终端设备基于标识指示的小区组配置CellGroupConfig来切换至目标小区。
举例而言，如果是DC场景，则可以在用于指示切换的MAC CE信令中只包含一个小区组配置CellGroupConfig的标识，其中，该标识用于确定主小区组(Master Cell Group，MCG)，此时，可以默认该标识所指示小区组配置CellGroupConfig对应的小区组为新的主小区组(Master Cell Group，MCG)，而切换之前的辅小区组SCG默认仍然为终端设备的辅小区组SCG，或者，还可以释放切换之前的辅小区组SCG，或者，还可以引入标识符，指示这个小区组配置cellgroupconfig对应的小区组cell group作为MCG或者SCG。
举例而言，如果是DC场景，则可以在用于指示切换的MAC CE信令中指示两个小区组配置CellGroupConfig的标识，即指示一个小区组配置CellGroupConfig的标识(该标识 用于确定主小区组(Master Cell Group，MCG))，并且还指示另一个小区组配置CellGroupConfig的标识(该标识所指示小区组配置CellGroupConfig对应的小区组为新的辅小区组SCG)，其中，针对一个标识是对应指示MCG还是SCG，可以由第一网络设备基于显示或者隐示的方式进行指示，对此不做限制。
举例而言，如果每个候选小区cell的配置参数包含在特殊小区配置信息元素(Special cell Config Information Element，SpCellConfig IE)中，则可以在用于指示切换的MAC CE信令中至少包含目标小区cell所属的SpCellConfig对应的索引，该索引可以被用于确定对应的SpCellConfig，以支持终端设备基于该索引指示的SpCellConfig准确地切换至目标小区。
针对不同的通信场景，可以对目标小区cell所属的SpCellConfig的索引有不同的设计方式，举例说明如下：
举例而言，如果每个候选小区cell的配置参数包含在SpCellConfig IE中，如果是非CA场景，则可以在用于指示切换的MAC CE信令中至少包含目标小区cell所属的SpCellConfig对应的索引，该索引可以被用于确定SpCellConfig，以支持终端设备基于该索引指示的SpCellConfig准确地切换至目标小区。
举例而言，如果每个候选小区cell的配置参数包含在SpCellConfig IE中，如果是CA场景，则可以在用于指示切换的MAC CE信令中包含一个目标小区所属的SpCellConfig对应的索引，该索引用于确定主小区(Primary Cell，PCell)，该索引可以被用于指示终端设备将目标小区更新为主小区PCell，对于新的辅小区Scell，可以默认将切换之前的辅小区Scell作为切换之后新的辅小区Scell，或者，还可以默认将切换之前的辅小区Scell全部释放，并在切换完成之后重新配置新的辅小区Scell，对此不做限制。
举例而言，如果每个候选小区cell的配置参数包含在一个SpCellConfig IE中，如果是DC场景，则可以在用于指示切换的MAC CE信令中包含一个目标小区的SpCellConfig对应的索引，该索引用于确定主小区(Primary Cell，PCell)，还可以包含另一个目标小区的SpCellConfig对应的索引，该另一个索引用于确定主辅小区PSCell，针对不同索引对应指示PCell或者PSCell，可以由第一网络设备基于显示或者隐示的方式进行指示，对此不做限制，相应地，对于新的辅小区Scell，可以默认将切换之前的辅小区Scell作为切换之后新的辅小区Scell，或者，还可以默认将切换之前的辅小区Scell全部释放，并在切换完成之后重新配置新的辅小区Scell，对此不做限制。
本公开实施例中提供了一种指示消息的设计方法，目标小区的波束指示信息包括以下至少一项：目标小区的传输配置指示(Transmission Configuration Indicator，TCI)状态TCI state，其中，目标小区的TCI状态(TCI state)被用于确定目标小区的波束；至少一个目标小区的TCI状态的激活指示信息，其中，目标小区的TCI状态被用于确定目标小区的波束，实现基于MAC CE信令灵活地向终端设备指示目标小区的波束相关的信息，有效支持终端设备准确地切换至目标小区。
举例而言，可以在MAC CE信令中至少包含目标小区cell的TCI state，或者，还可以 在MAC CE信令中激活多个目标小区cell的TCI state，而后通过DCI信令指示一个已激活的目标小区cell的TCI state。
其中，基于所指示的已激活目标小区cell的TCI state，确定目标小区的波束的原理可以解释如下：目标小区cell的TCI state会关联一个参考信号，终端设备可以基于目标小区中的波束来接收信号，如果某个波束所接收的信号，与目标小区cell的TCI state所关联的参考信号相同，则接收该信号的波束即为基于所指示的已激活目标小区cell的TCI state，所确定出的目标小区的波束，简而言之，即能够接收所指示的TCI state所关联的参考信号的波束，即为确定出的目标小区的波束，对此不做限制。
其中，在MAC CE信令中激活多个目标小区cell的TCI state时，可以在MAC CE信令包含多个比特bit位，通过将不同bit位设置不同的值，来激活对应目标小区cell的TCI state，以支持联合DCI信令来指示一个目标小区cell的TCI state，对此不做限制。
本公开实施例中提供了一种指示消息的设计方法，第一指示消息承载在：DCI信令；其中，DCI信令包括以下至少一项：目标小区的小区指示信息，目标小区的波束指示信息，实现基于DCI信令向终端设备灵活地指示切换至目标小区。
其中，用于指示目标小区相关信息的指示信息，可以被称为目标小区的小区指示信息，而用于指示目标小区的波束相关的指示信息，可以被称为目标小区的波束指示信息。
通过为DCI信令设计目标小区的小区指示信息，和/或目标小区的波束指示信息，能够实现准确地基于DCI信令向终端设备指示小区切换。
本公开实施例中提供了一种指示消息的设计方法，DCI信令包括第一指示域，其中，第一指示域的值用于指示目标小区的小区指示信息，能够复用DCI信令的已有指示域来指示目标小区相关的信息，有效避免占用过多的信令资源开销。
其中，第一指示域，可以例如为DCI信令之中的切换命令Handover command域，比如，可以基于目标小区相关的信息来配置DCI信令之中Handover command域的值，以基于DCI信令之中Handover command域的值向终端设备指示切换目标小区。
本公开实施例中提供了一种指示消息的设计方法，小区指示信息包括以下任一项：
目标小区的标识；
目标小区所属的无线资源控制层RRC配置参数的标识；
目标小区所属的小区组配置CellGroupConfig的标识；
目标小区所属的特殊小区配置SpCellConfig对应的索引。
也即是说，本公开实施例中基于上述任一种指示消息的设计方法来设计DCI信令，以基于DCI信令指示终端设备进行小区切换，能够有效提升切换指示的灵活性和适用性，能够有效适配多种通信场景，从而使得切换指示能够灵活适配通信场景的个性化需求。
需要说明的是，针对DCI信令中所包含目标小区的小区指示信息，与通信场景的对应方式，可以一并参见上述MAC CE信令中所包含目标小区的小区指示信息，与通信场景的对应方式，在此不再赘述。
本公开实施例中提供了一种指示消息的设计方法，DCI信令包括第二指示域，其中， 第二指示域的值用于指示目标小区的波束指示信息，能够实现及时地指示目标小区的波束，有效减少小区切换时间。
其中，第二指示域可以例如为DCI信令中的传输配置指示TCI域，比如，可以基于目标小区的波束指示信息，来配置DCI信令之中TCI域的值，以基于DCI信令之中TCI域的值向终端设备指示切换目标小区。
本公开实施例中提供了一种指示消息的设计方法，目标小区的波束指示信息包括以下至少一项：指示一个已激活的目标小区的TCI状态，其中，所指示的已激活目标小区的TCI状态被用于确定目标小区的波束，从而实现基于DCI信令有效地对目标小区的波束相关信息进行有效地指示，以支持终端设备准确地切换至目标小区。
举例而言，可以先由第一网络设备向终端设备发送一个切换命令，并在切换命令之后，基于MAC CE信令来指示目标小区的TCI状态，或者，基于MAC CE信令激活多个目标小区的TCI状态，而后由DCI信令指示一个已激活的目标小区的TCI状态，该目标小区的TCI状态可以被用于确定目标小区的波束。
举例而言，还可以预先基于MAC CE信令激活多个目标小区的TCI状态，然后再用于切换指示的DCI信令的TCI域中指示一个已激活的目标小区的TCI状态，如果基于Rel-17的统一TCI框架(R17 unified TCI framework)，则该用于切换指示的DCI信令为下行的DCI信令(DownLink DCI，DL DCI)
图4是本公开实施例提供的另一种切换指示方法的流程示意图，该方法由第一网络设备执行。本实施例中的切换指示方法可以应用在第一网络设备中，对此不做限制。
本实施例中，第一网络设备向终端设备发送的第一指示消息可以是DCI信令，则为了有效保障基于DCI信令的切换指示的可靠性，还可以针对DCI信令设置相应的反馈机制，当终端设备正确接收到DCI信令之后，可以向第一网络设备反馈用于表示其已正确接收DCI信令的反馈消息，该反馈消息可以被称为第二指示消息，该第二指示消息可以用于指示终端设备已接收到DCI信令。
如图4所示，该方法可以包括但不限于如下步骤：
S104：响应于确定终端设备需切换至目标小区，向终端设备发送DCI信令，其中，DCI信令用于指示终端设备切换至目标小区，目标小区由波束测量结果确定。
针对S104的描述说明可以具体参见上述实施例，在此不再赘述。
S204：接收终端设备发送的第二指示消息，其中，第二指示消息用于指示终端设备已接收到DCI信令。
第一网络设备在向终端设备发送用于切换指示的DCI信令后，如果确定接收到终端设备反馈的第二指示消息，则可以确定终端设备已成功接收到DCI信令。
本公开实施例提供的一种切换指示方法，第二指示消息包括以下至少一项：DCI信令的混合自动重传请求(Hybrid Automatic Repeat Request，HARQ)反馈消息，TCI的HARQ反馈消息，能够有效提升终端设备已正确接收DCI信令的反馈消息的指示灵活性，有效地保障基于DCI信令的切换指示的可靠性。
举例而言，如果DCI信令有调度信息，则可以在UL DCI调度的物理上行共享信道 (Physical Uplink Shared Channel，PUSCH)或者DL DCI调度的物理上行链路控制信道(Physical Uplink Control Channel，PUCCH)中进行混合自动重传请求HARQ反馈，如果DCI信令没有调度信息，则可以基于DL DCI调度的PUCCH中进行混合自动重传请求HARQ反馈，另外，DCI信令的HARQ反馈，还可以复用TCI state(TCI状态)的反馈消息，即，如果接收到该TCI state的HARQ反馈消息ACK，则确定终端设备已成功接收到DCI信令，另外，针对MAC CE信令，其携带有HARQ反馈机制，能一定程度上保证基于MAC CE信令进行切换指示的可靠性，本公开实施例中正是针对DCI信令设计了相应的反馈机制，能有效提升基于DCI信令进行切换指示的可靠性。
需要说明的是，在下述实施例中，与上述实施例中相同或者相应方法步骤、术语的描述可以一并参见上述实施例，以下不再赘述。
图5是本公开实施例提供的另一种切换指示方法的流程示意图，该方法由终端设备执行。本实施例中的切换指示方法可以应用在终端设备中，对此不做限制。
如图5所示，该方法可以包括但不限于如下步骤：
S105：接收第一网络设备发送的第一指示消息，其中，第一指示消息用于指示终端设备切换至目标小区，目标小区由波束测量结果确定。
本实施例中，可以由当前为终端设备提供通信服务的服务小区的第一网络设备，向终端设备发送动态的切换指示，比如可以向终端设备发送动态切换消息，该动态切换消息可以被称为第一指示消息，而后，终端设备可以接收第一网络设备发送的第一指示消息，即基于第一指示消息所指示的内容触发切换至目标小区。
本实施例中，通过在第一网络设备根据波束测量结果确定终端设备需切换至目标小区时，向终端设备发送第一指示消息，终端设备接收第一网络设备发送的第一指示消息，以切换至目标小区，由于波束测量结果是基于L1测量所得，而不需要经过L3处理得到小区测量结果，并且波束测量结果不会依赖RRC信令来指示切换，从而有效地减少切换指示的时间开销，有效提升切换效率。
本公开实施例提供的一种切换指示方法，终端设备可以对至少一个波束进行测量，得到波束测量结果，并将波束测量结果上报至第一网络设备，以实现基于L1的波束测量结果快速地确定出终端设备是否需要切换至目标小区，有效支持第一网络设备向终端设备及时地指示小区切换。
其中，该波束测量结果可以例如包括各个候选小区中的波束质量，和服务小区中的波束质量，当然，也可以包括其他任意能够表示各个候选小区以及服务小区中波束测量情况的参数，对此不做限制。
本公开实施例中提供了一种指示消息的设计方法，第一指示消息承载在以下至少一项信令中：
媒体接入控制层的控制单元MAC CE信令；
下行控制信息DCI信令。
本公开实施例中提供了一种指示消息的设计方法，第一指示消息承载在：MAC CE信令；其中，MAC CE信令包括以下至少一项：
目标小区的小区指示信息；
目标小区的波束指示信息。
本公开实施例中提供了一种指示消息的设计方法，小区指示信息包括以下任一项：
目标小区的标识；
目标小区所属的无线资源控制层RRC配置参数的标识；
目标小区所属的小区组配置CellGroupConfig的标识；
目标小区所属的特殊小区配置SpCellConfig对应的索引。
本公开实施例中提供了一种指示消息的设计方法，目标小区的波束指示信息包括以下至少一项：
目标小区的传输配置指示TCI状态，其中，目标小区的TCI状态被用于确定目标小区的波束；
至少一个目标小区的TCI状态的激活指示信息，其中，目标小区的TCI状态被用于确定目标小区的波束。
本公开实施例中提供了一种指示消息的设计方法，第一指示消息承载在：DCI信令；其中，DCI信令包括以下至少一项：
目标小区的小区指示信息；
目标小区的波束指示信息。
本公开实施例中提供了一种指示消息的设计方法，DCI信令包括第一指示域，其中，第一指示域的值用于指示目标小区的小区指示信息。
本公开实施例中提供了一种指示消息的设计方法，小区指示信息包括以下任一项：
目标小区的标识；
目标小区所属的无线资源控制层RRC配置参数的标识；
目标小区所属的小区组配置CellGroupConfig的标识；
目标小区所属的特殊小区配置SpCellConfig对应的索引。
本公开实施例中提供了一种指示消息的设计方法，DCI信令包括第二指示域，其中，第二指示域的值用于指示目标小区的波束指示信息。
本公开实施例中提供了一种指示消息的设计方法，目标小区的波束指示信息包括以下至少一项：
指示一个已激活的目标小区的TCI状态，其中，所指示的已激活目标小区的TCI状态被用于确定目标小区的波束。
图6是本公开实施例提供的另一种切换指示方法的流程示意图，该方法由终端设备执行。本实施例中的切换指示方法可以应用在终端设备中，对此不做限制。
如图6所示，该方法可以包括但不限于如下步骤：
S106：接收第一网络设备发送的DCI信令，其中，DCI信令用于指示终端设备切换至 目标小区，目标小区由波束测量结果确定。
针对S106的描述说明可以一并参见上述实施例，在此不再赘述。
S206：向第一网络设备发送第二指示消息，其中，第二指示消息用于指示终端设备已接收到DCI信令。
终端设备在成功接收到DCI信令之后，可以向第一网络设备反馈第二指示消息，则第一网络设备在向终端设备发送用于切换指示的DCI信令后，如果确定接收到终端设备反馈的第二指示消息，则可以确定终端设备已成功接收到DCI信令。
本公开实施例提供的一种切换指示方法，第二指示消息包括以下至少一项：DCI信令的混合自动重传请求(Hybrid Automatic Repeat Request，HARQ)反馈消息，TCI的HARQ反馈消息，能够有效提升终端设备已正确接收DCI信令的反馈消息的指示灵活性，有效地保障基于DCI信令的切换指示的可靠性。
图7是本公开实施例提供的又一种切换指示方法的流程示意图，该方法由终端设备执行。本实施例中的切换指示方法可以应用在终端设备中，对此不做限制。
如图7所示，该方法可以包括但不限于如下步骤：
S107：接收第一网络设备发送的第一指示消息，其中，第一指示消息用于指示终端设备切换至目标小区，目标小区由波束测量结果确定。
针对S106的描述说明可以一并参见上述实施例，在此不再赘述。
S207：向第二网络设备发送第三指示消息，其中，第三指示消息用于指示已切换至目标小区。
如果终端设备接收第一网络设备发送的第一指示消息，则可以基于小区指示信息触发由当前的服务小区切换至目标小区，而后，可以在已切换至目标小区之后，向第二网络设备(例如，目标基站)发送用于指示已切换至目标小区的指示消息，该指示消息可以被称为第三指示消息。
本公开实施例提供的一种切换指示方法，向第二网络设备发送第三指示消息，包括以下至少一项：基于随机接入信道，向第二网络设备发送第三指示消息；基于与目标小区相关的预留资源，向第二网络设备发送第三指示消息；基于第一指示消息调度的资源，向第二网络设备发送第三指示消息，从而，使得终端设备能够灵活地向第二网络设备指示本终端设备已切换至由波束测量结果确定的目标小区中，有效地提升第三指示消息传输的可靠性。
本公开实施例提供的一种切换指示方法，预留资源包括以下至少一项：物理上行共享信道PUSCH资源；调度请求(Scheduling request，SR)资源，能够有效提升切换指示的实用性。
举例而言，终端设备可以基于如下方式切换至目标小区，比如可以随机接入目标小区，或者终端设备在随机接入到目标小区后，可以额外反馈特定的消息以告知第二网络设备，切换完成，该特定的消息可以是RRC ReconfigurationComplete消息，或者是其他任意可能的消息，对此不做限制。
举例而言，如果无随机接入信道(Random Access Channel-less，RACH-less)，则可以基于目标小区相关的预留资源向第二网络设备发送第三指示消息，或者也可以从第一指示消息中解析得到调度请求，基于调度请求调度一些信道资源以向第二网络设备发送第三指示消息，对此不做限制。
举例而言，预留资源可以是第一网络设备预先向终端设备所配置的，预留资源可以是物理上行共享信道PUSCH资源，调度请求SR资源。
本公开实施例提供的切换指示方法中，第一网络设备还可以为终端设备预先配置候选小区的配置信息，该配置信息可以包括各个候选小区的用于测量波束的参考信号的配置，还可以为终端设备配置TCI state，以及与每个候选小区对应的预留资源，则终端设备可以参考第一网络设备所配置的内容进行波束测量、小区切换，以及切换完成的确认，对此不做限制。
本实施例中，终端设备可以接收第一网络设备发送的第一指示消息，其中，第一指示消息用于指示终端设备切换至目标小区，目标小区由波束测量结果确定，并在成功切换至目标小区之后，向第二网络设备发送第三指示消息，其中，第三指示消息用于指示已切换至目标小区，能够及时地告知第二网络设备本终端设备已切换至由波束测量结果确定的目标小区中，能够及时地支持后续第二网络设备基于目标小区向终端设备提供通信服务。
图8是本公开实施例提供的又一种切换指示方法的流程示意图，该方法由第二网络设备执行。本实施例中的切换指示方法可以应用在第二网络设备中，对此不做限制。
其中，第二网络设备可以例如为目标基站，对此不做限制。
如图8所示，该方法可以包括但不限于如下步骤：
S108：确定终端设备已切换至目标小区，其中，目标小区由波束测量结果确定。
本实施例中，终端设备在成功切换至目标小区之后，向第二网络设备告知已成功切换至目标小区，则第二网络设备可以及时地获知终端设备已切换至由波束测量结果确定的目标小区中，以便及时地执行后续的通信服务。
图9是本公开实施例提供的又一种切换指示方法的流程示意图，该方法由第二网络设备执行。本实施例中的切换指示方法可以应用在第二网络设备中，对此不做限制。
其中，第二网络设备可以例如为目标基站，对此不做限制。
如图9所示，该方法可以包括但不限于如下步骤：
S109：接收终端设备发送的第三指示消息，其中，第三指示消息用于指示终端设备已切换至目标小区。
本实施例中，终端设备在成功切换至目标小区之后，向第二网络设备发送第三指示消息，其中，第三指示消息用于指示本终端设备已切换至目标小区，能够及时地获知终端设备已切换至由波束测量结果确定的目标小区中。
本公开实施例提供的一种切换指示方法，接收终端设备发送的第三指示消息，包括以下至少一项：基于随机接入信道，接收终端设备发送的第三指示消息；基于与目标小区相 关的预留资源，接收终端设备发送的第三指示消息；基于第一指示消息调度的资源，接收终端设备发送的第三指示消息，其中，第一指示消息用于第一网络设备指示终端设备切换至目标小区，能够灵活地获知终端设备已切换至由波束测量结果确定的目标小区中，有效地提升第三指示消息传输的灵活性和可靠性。
本公开实施例提供的一种切换指示方法，预留资源包括以下至少一项：物理上行共享信道PUSCH资源；SR资源。
本公开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。如图10所示，图10是本公开实施例提供的在一种切换指示方法的流程示意图，在图10中，以第一网络设备包括源分布式单元DU、第二网络设备是目标分布式单元DU，且还包括集中单元CU进行示例，由集中单元CU集中控制源分布式单元DU、目标分布式单元DU，以支持终端设备的小区切换。
其中，源分布式单元DU可以为终端设备预先配置，比如包括：候选小区的配置信息，该配置信息可以包括各个候选小区的用于测量波束的参考信号的配置，还可以为终端设备配置TCI state，以及与每个候选小区对应的预留资源，对此不做限制，终端设备基于源分布式单元DU预配置内容进行基于L1的波束测量，得到波束测量结果，并将该波束测量结果上报至源分布式单元DU，由集中单元CU集中控制源分布式单元DU、目标分布式单元DU，以支持终端设备的小区切换，源分布式单元DU可以向终端设备发送第一指示消息，终端设备基于第一指示消息指示的内容切换至目标小区，并随机接入目标小区，而后终端设备可以向目标分布式单元DU发送第三指示消息，即终端设备与目标分布式单元DU之间进行交互，以告知目标分布式单元DU本终端设备已接入目标小区，完成小区切换过程。
图11为本公开实施例提供的一种通信装置的结构示意图。图11所示的通信装置110可包括收发模块1101和处理模块1102。收发模块1101可包括发送模块和/或接收模块，发送模块用于实现发送功能，接收模块用于实现接收功能，收发模块1101可以实现发送功能和/或接收功能。
通信装置110可以是终端设备(如前述方法实施例中的终端设备)，也可以是终端设备中的装置，还可以是能够与终端设备匹配使用的装置。或者，通信装置110可以是网络设备(如前述方法实施例中的第一网络设备和/或第二网络设备)，也可以是网络设备中的装置，还可以是能够与网络设备匹配使用的装置。
通信装置110，在第一网络设备侧，该装置包括：
收发模块1101，用于响应于确定终端设备需切换至目标小区，向终端设备发送第一指示消息，其中，第一指示消息用于指示终端设备切换至目标小区，目标小区由波束测量结果确定。
本公开实施例提供一种切换指示方法，方法还包括：
接收终端设备上报的波束测量结果；
根据波束测量结果，确定终端设备需切换至目标小区。
本公开实施例提供一种切换指示方法，第一指示消息承载在以下至少一项信令中：
媒体接入控制层的控制单元MAC CE信令；
下行控制信息DCI信令。
本公开实施例提供一种切换指示方法，第一指示消息承载在：MAC CE信令；其中，MAC CE信令包括以下至少一项：
目标小区的小区指示信息；
目标小区的波束指示信息。
本公开实施例提供一种切换指示方法，小区指示信息包括以下任一项：
目标小区的标识；
目标小区所属的无线资源控制层RRC配置参数的标识；
目标小区所属的小区组配置CellGroupConfig的标识；
目标小区所属的特殊小区配置SpCellConfig对应的索引。
本公开实施例提供一种切换指示方法，目标小区的波束指示信息包括以下至少一项：
目标小区的传输配置指示TCI状态，其中，目标小区的TCI状态被用于确定目标小区的波束；
至少一个目标小区的TCI状态的激活指示信息，其中，目标小区的TCI状态被用于确定目标小区的波束。
本公开实施例提供一种切换指示方法，第一指示消息承载在：DCI信令；其中，DCI信令包括以下至少一项：
目标小区的小区指示信息；
目标小区的波束指示信息。
本公开实施例提供一种切换指示方法，DCI信令包括第一指示域，其中，第一指示域的值用于指示目标小区的小区指示信息。
本公开实施例提供一种切换指示方法，小区指示信息包括以下任一项：
目标小区的标识；
目标小区所属的无线资源控制层RRC配置参数的标识；
目标小区所属的小区组配置CellGroupConfig的标识；
目标小区所属的特殊小区配置SpCellConfig对应的索引。
本公开实施例提供一种切换指示方法，DCI信令包括第二指示域，其中，第二指示域的值用于指示目标小区的波束指示信息。
本公开实施例提供一种切换指示方法，目标小区的波束指示信息包括以下至少一项：
指示一个已激活的目标小区的TCI状态，其中，所指示的已激活目标小区的TCI状态被用于确定目标小区的波束。
本公开实施例提供一种切换指示方法，方法还包括：
接收终端设备发送的第二指示消息，其中，第二指示消息用于指示终端设备已接收到 DCI信令。
本公开实施例提供一种切换指示方法，第二指示消息包括以下至少一项：
DCI信令的混合自动重传请求HARQ反馈消息；
TCI的HARQ反馈消息。
本实施例中，通过在根据波束测量结果确定终端设备需切换至目标小区时，向终端设备发送第一指示消息，其中，第一指示消息用于指示终端设备切换至目标小区，由于波束测量结果为L1的测量结果，而不需要经过L3处理得到小区测量结果，并且波束测量结果不会依赖RRC信令来指示切换，从而有效地减少切换指示的时间开销，有效提升切换效率。
通信装置110，在终端设备侧，该装置包括：
收发模块1101，用于接收第一网络设备发送的第一指示消息，其中，第一指示消息用于指示终端设备切换至目标小区，目标小区由波束测量结果确定。
本公开实施例提供一种切换指示方法，方法还包括：
对至少一个波束进行测量，得到波束测量结果；
将波束测量结果上报至第一网络设备。
本公开实施例提供一种切换指示方法，第一指示消息承载在以下至少一项信令中：
媒体接入控制层的控制单元MAC CE信令；
下行控制信息DCI信令。
本公开实施例提供一种切换指示方法，第一指示消息承载在：MAC CE信令；其中，MAC CE信令包括以下至少一项：
目标小区的小区指示信息；
目标小区的波束指示信息。
本公开实施例提供一种切换指示方法，小区指示信息包括以下任一项：
目标小区的标识；
目标小区所属的无线资源控制层RRC配置参数的标识；
目标小区所属的小区组配置CellGroupConfig的标识；
目标小区所属的特殊小区配置SpCellConfig对应的索引。
本公开实施例提供一种切换指示方法，目标小区的波束指示信息包括以下至少一项：
目标小区的传输配置指示TCI状态，其中，目标小区的TCI状态被用于确定目标小区的波束；
至少一个目标小区的TCI状态的激活指示信息，其中，目标小区的TCI状态被用于确定目标小区的波束。
本公开实施例提供一种切换指示方法，第一指示消息承载在：DCI信令；其中，DCI信令包括以下至少一项：
目标小区的小区指示信息；
目标小区的波束指示信息。
本公开实施例提供一种切换指示方法，DCI信令包括第一指示域，其中，第一指示域的值用于指示目标小区的小区指示信息。
本公开实施例提供一种切换指示方法，小区指示信息包括以下任一项：
目标小区的标识；
目标小区所属的无线资源控制层RRC配置参数的标识；
目标小区所属的小区组配置CellGroupConfig的标识；
目标小区所属的特殊小区配置SpCellConfig对应的索引。
本公开实施例提供一种切换指示方法，DCI信令包括第二指示域，其中，第二指示域的值用于指示目标小区的波束指示信息。
本公开实施例提供一种切换指示方法，目标小区的波束指示信息包括以下至少一项：
指示一个已激活的目标小区的TCI状态，其中，所指示的已激活目标小区的TCI状态被用于确定目标小区的波束。
本公开实施例提供一种切换指示方法，方法还包括：
向第一网络设备发送第二指示消息，其中，第二指示消息用于指示终端设备已接收到DCI信令。
本公开实施例提供一种切换指示方法，第二指示消息包括以下至少一项：
DCI信令的混合自动重传请求HARQ反馈消息；
TCI的HARQ反馈消息。
本公开实施例提供一种切换指示方法，方法还包括：
向第二网络设备发送第三指示消息，其中，第三指示消息用于指示已切换至目标小区。
本公开实施例提供一种切换指示方法，向第二网络设备发送第三指示消息，包括以下至少一项：
基于随机接入信道，向第二网络设备发送第三指示消息；
基于与目标小区相关的预留资源，向第二网络设备发送第三指示消息；
基于第一指示消息调度的资源，向第二网络设备发送第三指示消息。
本公开实施例提供一种切换指示方法，预留资源包括以下至少一项：
物理上行共享信道PUSCH资源；
调度请求SR资源。
本实施例中，通过在第一网络设备根据波束测量结果确定终端设备需切换至目标小区时，向终端设备发送第一指示消息，终端设备接收第一网络设备发送的第一指示消息，以切换至目标小区，由于波束测量结果是基于L1测量所得，而不需要经过L3处理得到小区测量结果，并且波束测量结果不会依赖RRC信令来指示切换，从而有效地减少切换指示的时间开销，有效提升切换效率。
通信装置110，在第二网络设备侧，该装置包括：
处理模块1102，用于确定终端设备已切换至目标小区，其中，目标小区由波束测量结果确定。
本公开实施例提供一种切换指示方法，确定终端设备已切换至目标小区，包括：
接收终端设备发送的第三指示消息，其中，第三指示消息用于指示终端设备已切换至 目标小区。
本公开实施例提供一种切换指示方法，接收终端设备发送的第三指示消息，包括以下至少一项：
基于随机接入信道，接收终端设备发送的第三指示消息；
基于与目标小区相关的预留资源，接收终端设备发送的第三指示消息；
基于第一指示消息调度的资源，接收终端设备发送的第三指示消息，其中，第一指示消息用于第一网络设备指示终端设备切换至目标小区。
本公开实施例提供一种切换指示方法，预留资源包括以下至少一项：
物理上行共享信道PUSCH资源；
调度请求SR资源。
本实施例中，终端设备在成功切换至目标小区之后，向第二网络设备告知已成功切换至目标小区，则第二网络设备可以及时地获知终端设备已切换至由波束测量结果确定的目标小区中，以便及时地执行后续的通信服务。
图12是本公开实施例提供的另一种通信装置的结构示意图。通信装置120可以是终端设备(如前述方法实施例中的终端设备)，也可以是网络设备(如前述方法实施例中的第一网络设备和/或第二网络设备)，也可以是支持终端设备实现上述方法的芯片、芯片***、或处理器等，还可以是支持网络设备实现上述方法的芯片、芯片***、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。
通信装置120可以包括一个或多个处理器1201。处理器1201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通信装置(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，通信装置120中还可以包括一个或多个存储器1202，其上可以存有计算机程序1204，处理器1201中可以存有计算机程序1203，处理器1201执行所述计算机程序1204和/或计算机程序1203，以使得通信装置120执行上述方法实施例中描述的方法。
可选的，所述存储器1202中还可以存储有数据。通信装置120和存储器1202可以单独设置，也可以集成在一起。
可选的，通信装置120还可以包括收发器1205、天线1206。收发器1205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1205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，通信装置120中还可以包括一个或多个接口电路1207。接口电路1207用于接收代码指令并传输至处理器1201。处理器1201运行所述代码指令以使通信装置120执行上述方法实施例中描述的方法。
在一种实现方式中，处理器1201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，处理器1201可以存有计算机程序1203，计算机程序1203在处理器1201上运行，可使得通信装置120执行上述方法实施例中描述的方法。计算机程序1203 可能固化在处理器1201中，该种情况下，处理器1201可能由硬件实现。
在一种实现方式中，通信装置120可以包括电路，所述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通信装置可以是终端设备(如前述方法实施例中的终端设备)或者网络设备(如前述方法实施例中的第一网络设备和/或第二网络设备)，但本公开中描述的通信装置的范围并不限于此，而且通信装置的结构可以不受图12的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如所述通信装置可以是：
(1)独立的集成电路IC，或芯片，或，芯片***或子***；
(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。
对于通信装置可以是芯片或芯片***的情况，可参见图13，图13是本公开实施例的芯片的结构示意图，图13所示的芯片包括处理器1301和接口1302。其中，处理器1301的数量可以是一个或多个，接口1302的数量可以是多个。
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：
处理器1301，用于实现图5中的S105等、图6中的S106、S206等、图7中的S107、S207等。
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：
处理器1301，用于实现图2中的S102等、图3中的S103等、图4中的S104等、S204、图8中的S108等、图9中的S109等。
可选的，芯片还包括存储器1303，存储器1303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***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所述的功能，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***，该***包括前述图11实施例中作为终端设备(如前述方法实施例中的终端设备)的通信装置和作为网络设备(如前述方法实施例中的第一网络设备和/或第二网络设备)的通信装置，或者，该***包括前述图12实施例中作为终端设备(如前述方法实施例中的终端设备)的通信装置和作为网络设备(如前述方法实施例中的第一网络设备和/或第二网络设备)的通信装置。
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。所述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所述计算机程序时，全部或部分地产生按照本公开实施例所述的流程或功能。所述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。所述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，所述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。所述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。所述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***、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。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (38)

  1. 一种切换指示方法，其特征在于，被第一网络设备执行，所述方法包括：
    响应于确定终端设备需切换至目标小区，则向所述终端设备发送第一指示消息，其中，所述第一指示消息用于指示所述终端设备切换至所述目标小区，所述目标小区由波束测量结果确定。
  2. 如权利要求1所述的方法，其特征在于，所述方法还包括：
    接收所述终端设备上报的所述波束测量结果；
    根据所述波束测量结果，确定所述终端设备需切换至所述目标小区。
  3. 如权利要求1-2任一项所述的方法，其特征在于，所述第一指示消息承载在以下至少一项信令中：
    媒体接入控制层的控制单元MAC CE信令；
    下行控制信息DCI信令。
  4. 如权利要求1-3任一项所述的方法，其特征在于，所述第一指示消息承载在：MAC CE信令；其中，所述MAC CE信令包括以下至少一项：
    所述目标小区的小区指示信息；
    所述目标小区的波束指示信息。
  5. 如权利要求4所述的方法，其特征在于，所述小区指示信息包括以下任一项：
    所述目标小区的标识；
    所述目标小区所属的无线资源控制层RRC配置参数的标识；
    所述目标小区所属的小区组配置CellGroupConfig的标识；
    所述目标小区所属的特殊小区配置SpCellConfig对应的索引。
  6. 如权利要求4所述的方法，其特征在于，所述目标小区的波束指示信息包括以下至少一项：
    所述目标小区的传输配置指示TCI状态，其中，所述目标小区的TCI状态被用于确定所述目标小区的波束；
    至少一个所述目标小区的TCI状态的激活指示信息，其中，所述目标小区的TCI状态被用于确定所述目标小区的波束。
  7. 如权利要求1-3任一项所述的方法，其特征在于，所述第一指示消息承载在：DCI信令；其中，所述DCI信令包括以下至少一项：
    所述目标小区的小区指示信息；
    所述目标小区的波束指示信息。
  8. 如权利要求7所述的方法，其特征在于，所述DCI信令包括第一指示域，其中，所述第一指示域的值用于指示所述小区指示信息。
  9. 如权利要求7或8所述的方法，其特征在于，所述小区指示信息包括以下任一项：
    所述目标小区的标识；
    所述目标小区所属的无线资源控制层RRC配置参数的标识；
    所述目标小区所属的小区组配置CellGroupConfig的标识；
    所述目标小区所属的特殊小区配置SpCellConfig对应的索引。
  10. 如权利要求7所述的方法，其特征在于，所述DCI信令包括第二指示域，其中，所述第二指示域的值用于指示所述目标小区的波束指示信息。
  11. 如权利要求7或10所述的方法，其特征在于，所述目标小区的波束指示信息包括以下至少一项：
    指示一个已激活的所述目标小区的TCI状态，其中，所指示的已激活所述目标小区的TCI状态被用于确定所述目标小区的波束。
  12. 如权利要求7-11任一项所述的方法，其特征在于，所述方法还包括：
    接收所述终端设备发送的第二指示消息，其中，所述第二指示消息用于指示所述终端设备已接收到所述DCI信令。
  13. 如权利要求12所述的方法，其特征在于，所述第二指示消息包括以下至少一项：
    所述DCI信令的混合自动重传请求HARQ反馈消息；
    所述TCI的HARQ反馈消息。
  14. 一种切换指示方法，其特征在于，被终端设备执行，所述方法包括：
    接收第一网络设备发送的第一指示消息，其中，所述第一指示消息用于指示所述终端设备切换至目标小区，所述目标小区由波束测量结果确定。
  15. 如权利要求14所述的方法，其特征在于，所述方法还包括：
    对至少一个波束进行测量，得到所述波束测量结果；
    将所述波束测量结果上报至所述第一网络设备。
  16. 如权利要求14-15任一项所述的方法，其特征在于，所述第一指示消息承载在以下至少一项信令中：
    媒体接入控制层的控制单元MAC CE信令；
    下行控制信息DCI信令。
  17. 如权利要求14-16任一项所述的方法，其特征在于，所述第一指示消息承载在：MAC CE信令；其中，所述MAC CE信令包括以下至少一项：
    所述目标小区的小区指示信息；
    所述目标小区的波束指示信息。
  18. 如权利要求17所述的方法，其特征在于，所述小区指示信息包括以下任一项：
    所述目标小区的标识；
    所述目标小区所属的无线资源控制层RRC配置参数的标识；
    所述目标小区所属的小区组配置CellGroupConfig的标识；
    所述目标小区所属的特殊小区配置SpCellConfig对应的索引。
  19. 如权利要求17所述的方法，其特征在于，所述目标小区的波束指示信息包括以下至少一项：
    所述目标小区的传输配置指示TCI状态，其中，所述目标小区的TCI状态被用于确定所述目标小区的波束；
    至少一个所述目标小区的TCI状态的激活指示信息，其中，所述目标小区的TCI状态被用于确定所述目标小区的波束。
  20. 如权利要求14-16任一项所述的方法，其特征在于，所述第一指示消息承载在：DCI信令；其中，所述DCI信令包括以下至少一项：
    所述目标小区的小区指示信息；
    所述目标小区的波束指示信息。
  21. 如权利要求20所述的方法，其特征在于，所述DCI信令包括第一指示域，其中，所述第一指示域的值用于指示所述小区指示信息。
  22. 如权利要求20或21所述的方法，其特征在于，所述小区指示信息包括以下任一项：
    所述目标小区的标识；
    所述目标小区所属的无线资源控制层RRC配置参数的标识；
    所述目标小区所属的小区组配置CellGroupConfig的标识；
    所述目标小区所属的特殊小区配置SpCellConfig对应的索引。
  23. 如权利要求20所述的方法，其特征在于，所述DCI信令包括第二指示域，其中，所述第二指示域的值用于指示所述目标小区的波束指示信息。
  24. 如权利要求20或23所述的方法，其特征在于，所述目标小区的波束指示信息包括以下至少一项：
    指示一个已激活的所述目标小区的TCI状态，其中，所指示的已激活所述目标小区的TCI状态被用于确定所述目标小区的波束。
  25. 如权利要求20-24任一项所述的方法，其特征在于，所述方法还包括：
    向所述第一网络设备发送第二指示消息，其中，所述第二指示消息用于指示所述终端设备已接收到所述DCI信令。
  26. 如权利要求25所述的方法，其特征在于，所述第二指示消息包括以下至少一项：
    所述DCI信令的混合自动重传请求HARQ反馈消息；
    所述TCI的HARQ反馈消息。
  27. 如权利要求14-26任一项所述的方法，其特征在于，所述方法还包括：
    向第二网络设备发送第三指示消息，其中，所述第三指示消息用于指示已切换至所述目标小区。
  28. 如权利要求27所述的方法，其特征在于，所述向第二网络设备发送第三指示消息，包括以下至少一项：
    基于随机接入信道，向所述第二网络设备发送第三指示消息；
    基于与所述目标小区相关的预留资源，向所述第二网络设备发送第三指示消息；
    基于所述第一指示消息调度的资源，向所述第二网络设备发送第三指示消息。
  29. 如权利要求28所述的方法，其特征在于，所述预留资源包括以下至少一项：
    物理上行共享信道PUSCH资源；
    调度请求SR资源。
  30. 一种切换指示方法，其特征在于，被第二网络设备执行，所述方法包括：
    确定终端设备已切换至目标小区，其中，所述目标小区由波束测量结果确定。
  31. 如权利要求30所述的方法，其特征在于，所述确定终端设备已切换至目标小区， 包括：
    接收所述终端设备发送的第三指示消息，其中，所述第三指示消息用于指示所述终端设备已切换至所述目标小区。
  32. 如权利要求31所述的方法，其特征在于，所述接收所述终端设备发送的第三指示消息，包括以下至少一项：
    基于随机接入信道，接收所述终端设备发送的第三指示消息；
    基于与所述目标小区相关的预留资源，接收所述终端设备发送的第三指示消息；
    基于第一指示消息调度的资源，接收所述终端设备发送的第三指示消息，其中，所述第一指示消息用于第一网络设备指示所述终端设备切换至所述目标小区。
  33. 如权利要求32所述的方法，其特征在于，所述预留资源包括以下至少一项：
    物理上行共享信道PUSCH资源；
    调度请求SR资源。
  34. 一种通信装置，其特征在于，所述装置包括：
    收发模块，用于响应于确定终端设备需切换至目标小区，向所述终端设备发送第一指示消息，其中，所述第一指示消息用于指示所述终端设备切换至所述目标小区，所述目标小区由波束测量结果确定。
  35. 一种通信装置，其特征在于，所述装置包括：
    收发模块，用于接收第一网络设备发送的第一指示消息，其中，所述第一指示消息用于指示所述终端设备切换至目标小区，所述目标小区由波束测量结果确定。
  36. 一种通信装置，其特征在于，所述装置包括：
    处理模块，用于确定终端设备已切换至目标小区，其中，所述目标小区由波束测量结果确定。
  37. 一种通信***，其特征在于，所述通信***包括第一网络设备、终端设备，以及第二网络设备，所述第一网络设备执行如权利要求1-13中任一项所述的方法，所述终端设备执行如权利要求14-29中任一项所述的方法，所述第二网络设备执行如权利要求30-33中任一项所述的方法，。
  38. 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1-33中任一项所述的方法被实现。
PCT/CN2022/122939 2022-09-29 2022-09-29 切换指示方法、装置、设备、芯片***及存储介质 WO2024065546A1 (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220174508A1 (en) * 2020-11-27 2022-06-02 Qualcomm Incorporated Techniques for beam management
WO2022133821A1 (zh) * 2020-12-23 2022-06-30 华为技术有限公司 一种小区切换的方法及装置
CN114765783A (zh) * 2021-01-15 2022-07-19 维沃移动通信有限公司 波束切换方法、装置、终端及网络侧设备
CN114830756A (zh) * 2020-02-12 2022-07-29 苹果公司 用于低层小区间移动性管理的方法

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Publication number Priority date Publication date Assignee Title
CN114830756A (zh) * 2020-02-12 2022-07-29 苹果公司 用于低层小区间移动性管理的方法
US20220174508A1 (en) * 2020-11-27 2022-06-02 Qualcomm Incorporated Techniques for beam management
WO2022133821A1 (zh) * 2020-12-23 2022-06-30 华为技术有限公司 一种小区切换的方法及装置
CN114765783A (zh) * 2021-01-15 2022-07-19 维沃移动通信有限公司 波束切换方法、装置、终端及网络侧设备

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