WO2023220941A1 - 一种数据前转信息的传输方法及其装置 - Google Patents

一种数据前转信息的传输方法及其装置 Download PDF

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Publication number
WO2023220941A1
WO2023220941A1 PCT/CN2022/093406 CN2022093406W WO2023220941A1 WO 2023220941 A1 WO2023220941 A1 WO 2023220941A1 CN 2022093406 W CN2022093406 W CN 2022093406W WO 2023220941 A1 WO2023220941 A1 WO 2023220941A1
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Prior art keywords
node
data
target
source
forwarding information
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PCT/CN2022/093406
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English (en)
French (fr)
Inventor
吴昱民
熊艺
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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 CN202280001784.2A priority Critical patent/CN117426122A/zh
Priority to PCT/CN2022/093406 priority patent/WO2023220941A1/zh
Publication of WO2023220941A1 publication Critical patent/WO2023220941A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control

Definitions

  • the present application relates to the field of data processing technology, and in particular, to a method and device for transmitting data forwarding information.
  • the network side can provide the terminal with "preconfigured cells (or cell groups)" for subsequent selective activation of cells (or cell groups) .
  • "preconfigured cells (or cell groups)” for subsequent selective activation of cells (or cell groups) .
  • Embodiments of this application provide a method and device for transmitting data forwarding information (Data Forwarding Information).
  • Data Forwarding Information Data Forwarding Information
  • the "preconfigured cell (or cell group)" configuration can be updated on the network side.
  • functions such as data forwarding and path conversion, fast data transmission is achieved, and data forwarding and path conversion can be performed when multiple cell groups are changed at the same time.
  • embodiments of the present application provide a method for transmitting data forwarding information, which is executed by a first node.
  • the method includes:
  • data forwarding information is sent to the second node.
  • the first node can send data forwarding information to the second node according to the set trigger event, which can realize rapid transmission of data.
  • embodiments of the present application provide a method for transmitting data forwarding information, which is executed by the second node.
  • the method includes:
  • the second node can receive the data forwarding information sent by the first node according to the set trigger event, which can realize rapid transmission of data.
  • embodiments of the present application provide a communication device that has some or all of the functions of the terminal device in implementing the method described in the first aspect.
  • the functions of the communication device may have some or all of the functions in this application.
  • the functions in the embodiments may also be used to independently implement any of the embodiments in this application.
  • the functions described can be implemented by hardware, or can be implemented 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 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 further include a storage module coupled to the transceiver module and the processing module, which stores necessary computer programs and data 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
  • embodiments of the present application provide another communication device that has some or all of the functions of the network device in the method example described in the second aspect.
  • the functions of the communication device may have some of the functions in this application.
  • the functions in all embodiments may also be used to implement any one embodiment of the present application independently.
  • the functions described can be implemented by hardware, or can be implemented 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 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 further include a storage module coupled to the transceiver module and the processing module, which stores computer programs and data necessary for the communication device.
  • inventions of the present application provide a communication device.
  • the communication device includes a processor.
  • the processor calls a computer program in a memory, it executes the method described in the first aspect.
  • inventions of the present application provide a communication device.
  • the communication device includes a processor.
  • the processor calls a computer program in a memory, it executes the method described in the second aspect.
  • inventions of the present application provide a communication device.
  • the communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the first aspect above.
  • inventions of the present application provide a communication device.
  • the communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the second aspect above.
  • inventions of the present application provide a communication device.
  • the device includes a processor and an interface circuit.
  • the interface circuit is used to receive code instructions and transmit them to the processor.
  • the processor is used to run the code instructions to cause the The device performs the method described in the first aspect.
  • inventions of the present application provide a communication device.
  • the device includes a processor and an interface circuit.
  • the interface circuit is used to receive code instructions and transmit them to the processor.
  • the processor is used to run the code instructions to cause the The device performs the method described in the second aspect above.
  • embodiments of the present application provide a communication system for transmitting data forwarding information.
  • the system includes the communication device described in the third aspect and the communication device described in the fourth aspect, or the system includes a fifth aspect.
  • the communication device according to the sixth aspect and the communication device according to the sixth aspect, or the system includes the communication device according to the seventh aspect and the communication device according to the eighth aspect, or the system includes the communication device according to the ninth aspect.
  • embodiments of the present invention provide a computer-readable storage medium for storing instructions used by the above-mentioned terminal equipment. When the instructions are executed, the terminal equipment is caused to execute the above-mentioned first aspect. method.
  • embodiments of the present invention provide a readable storage medium for storing instructions used by the above-mentioned network device. When the instructions are executed, the network device is caused to perform the method described in the second aspect. .
  • the present application also provides a computer program product including a computer program, which when run on a computer causes the computer to execute the method described in the first aspect.
  • the present application also provides a computer program product including a computer program, which when run on a computer causes the computer to execute the method described in the second aspect.
  • the present application provides a chip system, which includes at least one processor and an interface for supporting the terminal device to implement the functions involved in the first aspect, for example, determining or processing the data involved in the above method. and information.
  • the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the terminal device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • this application provides a chip system, which includes at least one processor and an interface for supporting network equipment to implement the functions involved in the second aspect, for example, determining or processing the data involved in the above method. and information.
  • the chip system also includes a memory, and the memory is used to store necessary computer programs and data for network equipment.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the present application provides a computer program that, when run on a computer, causes the computer to execute the method described in the first aspect.
  • this application provides a computer program that, when run on a computer, causes the computer to execute the method described in the second aspect.
  • Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present application.
  • Figure 2 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application
  • Figure 3 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application
  • Figure 4 is a schematic diagram of different bearer types of a cell group provided by an embodiment of the present application.
  • Figure 5 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application
  • Figure 6 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application
  • Figure 7 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application.
  • Figure 8 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application.
  • Figure 9 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application.
  • Figure 10 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application.
  • Figure 11 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application.
  • Figure 12 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application
  • Figure 13 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application
  • Figure 14 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application.
  • Figure 15 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 16 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 17 is a schematic structural diagram of a chip provided by an embodiment of the present application.
  • first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other.
  • first information may also be called second information, and similarly, the second information may also be called first information.
  • word “if” as used herein may be interpreted as "when” or “when” or “in response to determining”
  • the terms used in this article are “greater than” or “less than”, “higher than” or “lower than” when characterizing size relationships. But for those skilled in the art, it can be understood that: the term “greater than” also covers the meaning of “greater than or equal to”, and “less than” also covers the meaning of “less than or equal to”; the term “higher than” covers the meaning of “higher than or equal to”. “The meaning of “less than” also covers the meaning of "less than or equal to”.
  • RLC AM Radio Link Control Acknowledged Mode
  • the source cell determines that the terminal has switched to the target cell.
  • the cell sends the DL PDCP SDU (Data Link Packet Data Convergence Protocol Service Data Units) that has not been confirmed by the terminal to the target cell where the terminal is switched, and also forwards some data just received by the core network.
  • terminal equipment can utilize radio resources provided by two different schedules. These schedules are located on two different nodes, one serving as the master node (Master Node, MN), one as a secondary node (Secondary Node, SN). MNs and SNs are connected through network interfaces, at least one of which is connected to the core network. Among them, one PScell or SCG corresponds to one SN, and one Pcell or MCG corresponds to one MN.
  • a Dual Connectivity (DC) architecture including two cell groups: Master Cell Group (MCG), where MCG corresponds to the network-side Master Node (MN). , Secondary Cell Group (Secondary Cell Group, referred to as SCG), where SCG corresponds to the network side secondary node (Secondary Node, referred to as SN).
  • MCG Master Cell Group
  • SCG Secondary Cell Group
  • SCG Secondary Cell Group
  • SCG corresponds to the network side secondary node
  • the primary cell group MCG includes one primary cell (Primary Cell, PCell for short) and one or more secondary cells (Secondary Cell, SCell for short);
  • the secondary cell group SCG includes one primary and secondary cell (Primary Secondary Cell, PSCell for short) and one or more secondary cells SCell.
  • the primary cell PCell and the primary and secondary cells PSCell can be collectively called a special cell (Special Cell, referred to as SpCell).
  • Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present application.
  • the communication system may include but is not limited to one network device and one terminal device.
  • the number and form of devices shown in Figure 1 are only for examples and do not constitute a limitation on the embodiments of the present application. In actual applications, two or more devices may be included.
  • the communication system shown in Figure 1 includes a network device 101 and a terminal device 102 as an example.
  • LTE long term evolution
  • 5th generation 5th generation
  • NR 5th generation new radio
  • side link in the embodiment of the present application may also be called a side link or a through link.
  • the network device 101 in the embodiment of this application is an entity on the network side that is used to transmit or receive signals.
  • the network device 101 can be an evolved base station (evolved NodeB, eNB), a transmission point (transmission reception point, TRP), a next generation base station (next generation NodeB, gNB) in an NR system, or other base stations in future mobile communication systems. Or access nodes in wireless fidelity (WiFi) systems, etc.
  • the embodiments of this application do not limit the specific technology and specific equipment form used by the network equipment.
  • the network equipment provided by the embodiments of this application may be composed of a centralized unit (central unit, CU) and a distributed unit (DU).
  • the CU may also be called a control unit (control unit).
  • the structure can separate the protocol layers of network equipment, such as base stations, and place some protocol layer functions under centralized control on the CU. The remaining part or all protocol layer functions are distributed in the DU, and the CU centrally controls the DU.
  • the terminal device 102 in the embodiment of this application is an entity on the user side that is used to receive or transmit signals, such as a mobile phone.
  • Terminal equipment can also be called terminal equipment (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal equipment (mobile terminal, MT), etc.
  • the terminal device can be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an augmented reality (augmented reality (AR) terminal equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical surgery, smart grid ( Wireless terminal equipment in smart grid, wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, wireless terminal equipment in smart home, etc.
  • the embodiments of this application do not limit the specific technology and specific equipment form used by the terminal equipment.
  • side-link transmission modes there are 4 side-link transmission modes.
  • Side link transmission mode 1 and side link transmission mode 2 are used for terminal device direct (device-to-device, D2D) communication.
  • Side-link transmission mode 3 and side-link transmission mode 4 are used for V2X communications.
  • resource allocation is scheduled by the network device 101.
  • the network device 101 can send resource allocation information to the terminal device 102, and then the terminal device 102 allocates resources to another terminal device, so that the other terminal device can send information to the network device 101 through the allocated resources.
  • a terminal device with better signal or higher reliability can be used as the terminal device 102 .
  • the first terminal device mentioned in the embodiment of this application may refer to the terminal device 102, and the second terminal device may refer to the other terminal device.
  • Figure 2 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application.
  • the method is executed by the first node, as shown in Figure 2.
  • the method may include but is not limited to the following steps:
  • S21 Send data forwarding information to the second node according to the set trigger event.
  • the trigger event can be set to selectively activate the Secondary Cell Group (Secondary Cell Group, referred to as SCG); the trigger event can be set to selectively activate the Master Cell Group (Master Cell Group, referred to as MCG); the trigger can be set to The event is the selective activation of MCG and SCG at the same time; the trigger event can be set to the mobility process triggered by conditions of simultaneous MCG and SCG.
  • SCG Secondary Cell Group
  • MCG Master Cell Group
  • MCG Master Cell Group
  • the event is the selective activation of MCG and SCG at the same time; the trigger event can be set to the mobility process triggered by conditions of simultaneous MCG and SCG.
  • the network side may provide candidate cells or cell group configurations to the terminal equipment.
  • the cell type for the candidate cell includes at least one of the following, for example: PCell, PSCel, SpCell, SCell, SpCell, MCG SCell, SCG SCell, etc.
  • the candidate cell may have multiple potential cell types.
  • the cell type of the candidate cell may be obtained based on network side instructions or protocol agreements.
  • the candidate cell group includes at least one of the following, for example: MCG, SCG, etc.
  • the candidate cell group may have multiple potential cell group types.
  • the cell group type of the candidate cell group may be obtained based on network side instructions or protocol agreements.
  • the network side can negotiate the user plane data, that is, the transmission path of the data radio bearer DRB through the network node.
  • the first node can directly send the data forwarding information to the second node according to the triggering event; optionally, the first node can send the data forwarding information to the second node via the third node.
  • the first node is one of the source MN, source SN, anchor base station, anchor MN or anchor SN.
  • the second node may be the source MN, source SN, etc.
  • the trigger event also includes any one of the following trigger conditions, that is, it needs to be triggered when any one of the following conditions is met.
  • the trigger condition is met.
  • the first node sends a "Cell Group Selective Activation Candidate Request Message" to the second node, and after accepting the request, the second node sends a "Cell Group Selective Activation Candidate Confirmation Message" to the first node.
  • the trigger condition is met before, after or at the same time as the first node sends the "Activate Candidate Cell or Cell Group Configuration Command".
  • the "Activate Candidate Cell or Cell Group Configuration Command” is a configuration command sent to the terminal. Order.
  • the triggering condition is met.
  • the first node sends an "activate "candidate cell or cell group) configuration command" to the terminal.
  • the terminal activates the “candidate cell or cell group” configuration on its own based on the trigger event.
  • the second node sends a "candidate cell or cell group” configuration activation confirmation message to the first node. .
  • the data forwarding information can be set to the data path identification information of the terminal device, the data forwarding information can be set to the data bearer identification, the data forwarding information can be set to the data bearer type, the data forwarding information can be set to The message is data sending status information.
  • the first node can send data forwarding information to the second node according to the set trigger event.
  • the first node can send data forwarding information to the second node according to the set trigger event.
  • the preconfigured cell or cell group configuration is updated on the network side.
  • functions such as data forwarding and path conversion, fast data transmission is achieved, and data forwarding and path conversion can be performed when multiple cell groups are changed at the same time.
  • Figure 3 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application.
  • the method is executed by the first node, as shown in Figure 3.
  • the method may include but is not limited to the following steps:
  • S31 Send data forwarding information to the second node via the third node according to the set trigger event.
  • the network side may provide candidate cells or cell group configurations to the terminal.
  • the cell type for the candidate cell includes at least one of the following, for example: PCell, PSCel, SpCell, SCell, SpCell, MCG SCell, SCG SCell, etc.
  • the candidate cell may have multiple potential cell types.
  • the cell type of the candidate cell may be obtained based on network side instructions or protocol agreements.
  • the candidate cell group includes at least one of the following, for example: MCG, SCG, etc.
  • the candidate cell group may have multiple potential cell group types.
  • the cell group type of the candidate cell group may be obtained based on network side instructions or protocol agreements.
  • the network side can negotiate the user plane data, that is, the transmission path of the data radio bearer DRB through the network node.
  • the first node may send data forwarding information to the second node via the third node.
  • the first node is one of the source MN, source SN, anchor base station, anchor MN or anchor SN.
  • the second node may be the source MN, source SN, etc.
  • the third node is one of the source MN, anchor base station, anchor MN or anchor SN.
  • the trigger condition is met.
  • the first node sends a "Cell Group Selective Activation Candidate Request Message" to the second node, and after accepting the request, the second node sends a "Cell Group Selective Activation Candidate Confirmation Message" to the first node.
  • the trigger condition is met before, after or at the same time as the first node sends the "Activate Candidate Cell or Cell Group Configuration Command".
  • the "Activate Candidate Cell or Cell Group Configuration Command” is a configuration command sent to the terminal. Order.
  • the triggering condition is met.
  • the first node sends an "activate "candidate cell or cell group) configuration command" to the terminal.
  • the terminal activates the “candidate cell or cell group” configuration on its own based on the trigger event.
  • the second node sends a "candidate cell or cell group” configuration activation confirmation message to the first node. .
  • the data forwarding information can be set to the data path identification information of the terminal device, the data forwarding information can be set to the data bearer identification, the data forwarding information can be set to the data bearer type, the data forwarding information can be set to The message is data sending status information.
  • the first node may send data forwarding information to the second node via the third node.
  • the data forwarding information may be at least one of data path identification information, data bearer identification, data bearer type, and data transmission status information of the terminal device.
  • the data path identification information of the terminal device may be at least one of the first data transmission source address and the first data transmission destination address included in the downlink transmission path identification information or the second data transmission destination address included in the uplink transmission path identification information. At least one of the data sending source address and the second data sending destination address.
  • the data bearer identifier may be at least one of a session identifier, a data flow identifier, a service identifier, a transmission path identifier, and a logical channel identifier.
  • Data Radio Bearer (DRB for short) can be divided into different bearer types according to the cell group for data transmission.
  • the bearer type can be Master Cell Group bearer (Master Cell Group bearer), optionally, the bearer type can be Secondary Cell Group bearer (Secondary Cell Group bearer), and the bearer type can be Split bearer.
  • the data transmission status information includes downlink data transmission status information including at least one of a number corresponding to the first transmission data and a number corresponding to the first discarded data, and the uplink data transmission status information includes a number corresponding to the second transmission data. At least one of the numbers corresponding to the second discarded data.
  • the number corresponding to the first sent data and the number corresponding to the second sent data include at least one of the following situations: the first sent data number; the first N numbers corresponding to the first sent data number, N is positive. Integer; the last M numbers corresponding to the first sent data number, M is a positive integer; the number corresponding to each sent data; the number corresponding to the first discarded data and the number corresponding to the second discarded data include at least one of the following situations One item: discard the lower boundary value of the data number; discard the upper boundary value of the data number; discard the lower boundary value and upper boundary value of the data number.
  • the first node can send data forwarding information to the second node via the third node.
  • the preconfigured cell or cell group can be configured on the network side.
  • data forwarding and path conversion are implemented to achieve fast transmission of data, and data forwarding and path conversion can be performed when multiple cell groups are changed simultaneously.
  • Figure 5 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application.
  • the method is executed by the first node, as shown in Figure 5.
  • the method may include but is not limited to the following steps:
  • condition-triggered mobility processes include: Conditional Handover (CHO), Conditional PSCell Addition (CPA), Conditional PSCell Change (CPC) ).
  • S52 The source MN sends data forwarding information to the target node.
  • the source MN sending data forwarding information to the target node is applicable to two different mobility processes, namely conditional handover CHO and conditional master node.
  • the secondary cell adds a CPA mobility procedure or a conditional handover CHO and a conditional primary and secondary cell change CPC mobility procedure.
  • the following explains the process of the source MN sending data forwarding information to the target node.
  • data is sent from the source MN to the target SN or data is sent from the source MN to the target MN.
  • data is sent from the target SN to the source MN or data is sent from the target MN to the source MN.
  • the data forwarding information is first data forwarding information used for data transmission between the source MN and the target MN, the target node is the target MN, and the source MN sends the first data forwarding information to the target MN.
  • the data forwarding information is second data forwarding information used for data transmission between the source MN and the target secondary node SN, the target node is the target SN, and the source MN directly sends the second data forwarding information to the target SN, Or the source MN sends the second data forwarding information to the target MN, and the target MN is used to forward the second data forwarding information to the target SN.
  • the following is an example of the process of adding CPA mobility to CHO and conditional primary and secondary cells when triggering event condition switching, and the process of the source MN sending data forwarding information to the target node.
  • data is sent from the source MN to the target SN or data is sent from the source MN to the target MN.
  • data is sent from the target SN to the source MN or data is sent from the target MN to the source MN.
  • Step a The source MN (first node) sends the data forwarding information to the target node (second node).
  • the method of sending data forwarding information includes at least one of the following: data forwarding information used for data sending between the source MN and the target MN, data sent by the source MN to the target MN, and data used for data sending between the source MN and the target SN. Forwarding information, the source MN sends to the target SN, data forwarding information used for data transmission between the source MN and the target SN, the source MN sends to the target MN.
  • the data forwarding information includes at least one of the following:
  • Terminal data path identification information includes at least one of the following: downlink transmission path identification information.
  • the downlink transmission path identification information includes at least one of the following: data transmission source address and data transmission target address.
  • the uplink transmission path identification information includes at least one of the following: a data transmission source address and a data transmission target address.
  • the bearer identification includes at least one of the following: session identification (for example, session ID), data flow identification (for example, QoS flow ID), service identification (for example, Temporary Mobile Group Identity (TMGI)) , transmission path identification (such as MCG transmission path or SCG transmission path), logical channel identification (such as Logical channel ID).
  • session identification for example, session ID
  • data flow identification for example, QoS flow ID
  • service identification for example, Temporary Mobile Group Identity (TMGI)
  • transmission path identification such as MCG transmission path or SCG transmission path
  • logical channel identification such as Logical channel ID
  • Bearer type wherein, the bearer identification includes at least one of the following: Master Cell Group bearer.
  • the bearer type can be Secondary Cell Group bearer (Secondary Cell Group bearer).
  • the bearer type can be Split bearer. ).
  • the information includes at least one of the following: a number corresponding to the sent data (where the number includes at least one of the following: PDCP SN; PDCP HFN (Hyper Frame Number, super frame number); PDCP COUNT.).
  • the "number corresponding to the sent data” includes at least one of the following: the first sent data number.
  • the first number corresponding to the first sent data number (for example: the corresponding number of the first sent data is N, then the number is (N-1)), the last number corresponding to the first sent data number (for example: the first The number corresponding to the sent data is N, then the number is (N+1)) the number corresponding to each piece of data sent (for example: the number of the data sent through the bitmap identification (every 1 bit marks 1 number); the number corresponding to the discarded data number.
  • the "number corresponding to the discarded data” includes any of the following: the lower boundary value of the discarded data number (for example: if the data number is greater than or equal to the lower boundary value, the data is discarded), the upper boundary value of the discarded data number Boundary value (for example: if the data number is less than or equal to the upper boundary value, the data is discarded), the lower boundary value of the discarded data number and the upper boundary value of the discarded data number (for example: if the data number is greater than or equal to the lower boundary value) If the upper boundary value is less than or equal to the upper boundary value, the data will be discarded).
  • Uplink data transmission status information includes at least one of the following: a number corresponding to the sent data (same as above), a number corresponding to the discarded data (same as above), which will not be described again here.
  • Step b When the source MN sends data forwarding information for data transmission between the source MN and the target SN to the target MN, the target MN sends the data forwarding information for data transmission between the source MN and the target SN to the target SN. .
  • the following is an example of the process in which the source MN sends data forwarding information to the target node when the trigger event conditions are conditional switching CHO and conditional primary and secondary cell change CPC mobility process.
  • the data is sent from the source MN to the target SN or the data is sent from the source MN to the target MN or the data is sent from the source SN to the target SN or the data is sent from the source SN to the source MN and then from the source MN to Target SN.
  • the data is sent from the target SN to the source MN or the data is sent from the target MN to the source MN or the data is sent from the target SN to the source SN or the data is sent from the target SN to the source MN and then from the source MN to SourceSN.
  • Step a The source MN (first node) sends the data forwarding information to the target node (second node).
  • Step b When the source MN sends data forwarding information for data transmission between the source MN and the target SN to the target MN, the target MN sends the data forwarding information for data transmission between the source MN and the target SN to the target SN. .
  • Step a The source SN sends data forwarding information for data transmission between the source SN and the target SN to the source MN.
  • Step b According to step a, the source MN sends data forwarding information for data transmission between the source SN and the target SN to the target SN.
  • the trigger event is set to be a condition-triggered mobility process.
  • the first node is the source master node MN and the second node is the target node
  • data forwarding information is sent to the target node through the source MN.
  • fast data transmission can be achieved through functions such as data forwarding and path conversion, and it can also be used when multiple cell groups are changed at the same time. Perform data forwarding and path conversion.
  • FIG. 6 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application.
  • the method is executed by the first node, as shown in Figure 6.
  • the method may include but is not limited to the following steps:
  • the mobility process based on condition triggering includes conditional handover CHO and conditional primary and secondary cell change CPC, the first node is the source SN, and the second node is the target SN.
  • the source SN sends the third data forwarding information to the target SN, which is applicable to the conditional handover CHO and conditional primary and secondary cell change CPC mobility processes.
  • the source SN sends the third data forwarding information to the target SN for data transmission between the source SN and the target SN, or the source SN sends the third data forwarding information to the source MN, and the source MN is used to forward the third data forwarding. Information to target SN.
  • data is sent from the source MN to the target SN, or data is sent from the source MN to the target MN, or data is sent from the source SN to the target SN, or data is sent from the source SN to the source MN, and then from the source MN to Target SN.
  • data is sent from the target SN to the source MN, or data is sent from the target MN to the source MN, or data is sent from the target SN to the source SN, or data is sent from the target SN to the source MN, and then from the source MN to SourceSN.
  • the source SN sends third data forwarding information for data transmission between the source SN and the target SN to the target SN.
  • the source SN sends the third data forwarding information to the source MN, and the source MN is used to forward the third data forwarding information to the target SN.
  • the mobility process based on condition triggering includes conditional handover CHO and conditional primary and secondary cell change CPC.
  • the first node is the source SN
  • the second node is the target SN.
  • the source SN can send a message for the target SN to the target SN.
  • the third data forwarding information is sent between the source SN and the target SN or the source SN sends the third data forwarding information to the source MN.
  • the source MN is used to forward the third data forwarding information to the target SN, which can realize fast data forwarding. transmission.
  • FIG. 7 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application.
  • the method is executed by the first node, as shown in Figure 7.
  • the method may include but is not limited to the following steps:
  • the triggering condition when selective activation of a cell group, it can be selective activation of the secondary cell group SCG or the primary cell group MCG.
  • the target node when the trigger condition is set to selective activation of the secondary cell group SCG, the target node is the target SN at this time; optionally, when the trigger condition is set to selective activation of the primary cell group MCG, the target node is is the target MN.
  • the first node sends fourth data forwarding information for data transmission between the first node and the target node to the target node.
  • the setting of the first node is not limited in this application and can be selected according to actual conditions.
  • the first node may be the source MN;
  • the first node may be the source SN;
  • the first node may be the anchor base station;
  • the first node may be the anchor MN;
  • the first node may be the anchor point SN.
  • the data when the triggering condition is the selective activation of the SCG cell group, optionally, for downlink data, the data is sent from the source MN or source SN or anchor base station or anchor MN or anchor SN to the target SN. .
  • the data is sent from the target SN to the source MN or source SN or anchor base station or anchor MN or anchor SN.
  • the trigger condition is the selective activation of the MCG cell group
  • the data is sent from the source MN or source SN or anchor base station or anchor MN or anchor SN to the target MN.
  • the data is sent from the target MN to the source MN or source SN or anchor base station or anchor MN or anchor SN.
  • the first node sends the fourth data forwarding information for data transmission between the first node and the target node to the target node, and it can be selected according to the actual situation.
  • the source node can send the fourth data forwarding information to the third node, and the third node is used to forward the fourth data forwarding information. Transfer the information to the target node.
  • the first node when the first node is the source MN or source SN or anchor base station or anchor MN or anchor SN, the first node (source MN or source SN or anchor base station or anchor MN or anchor SN)
  • Data forwarding information fourth data forwarding information for data transmission between the first node (source MN or source SN or anchor base station or anchor point MN or anchor SN) and the target SN is sent to the target SN.
  • the source MN when the source node is the source MN, the source MN sends the fourth data forwarding information to the third node, and the third node is one of the anchor base station or the anchor MN.
  • the source MN when the source node is the source MN, the source MN sends data forwarding information (fourth data forwarding information) for data transmission between the source MN and the target SN to the third node (anchor base station or anchor MN) .
  • the third node (anchor base station or anchor MN) sends data forwarding information (fourth data forwarding information) for data transmission between the source MN and the target SN to the target SN.
  • the source SN when the source node is the source SN, the source SN sends the fourth data forwarding information to the third node, and the third node is the source MN, the anchor base station, the anchor MN or the anchor SN. A sort of.
  • the source SN when the source node is the source SN, the source SN sends data forwarding information (fourth data forwarding information) for data transmission between the source SN and the target SN to the third node (source MN or anchor base station or anchor base station).
  • the third node source MN or anchor point base station or anchor point MN or anchor point SN
  • the fourth data forwarding information information is sent to the target SN.
  • the trigger condition is set to selective activation of a cell group
  • the second node is the target node
  • the first node can send fourth data to the target node for data transmission between the first node and the target node. Forwarding information enables rapid transmission of data.
  • the following uses the trigger condition to selectively activate the SCG cell group as an example to illustrate.
  • the data is sent from the first node (source MN or source SN or anchor base station or anchor MN or anchor SN) to the target SN (second node).
  • source MN or source SN or anchor base station or anchor MN or anchor SN the first node
  • target SN the target SN
  • the data is sent from the target SN (second node) to the first node (source MN or source SN or anchor base station or anchor MN or anchor SN).
  • the first node (source MN or source SN or anchor base station or anchor MN or anchor SN) connects the data between the first node (source MN or source SN or anchor base station or anchor MN or anchor SN) and the target SN
  • the sent data forwarding information is sent to the target SN (second node).
  • the first node sends the data forwarding information for data transmission between the first node (source SN) and the target SN to the third node (source MN or anchor base station or anchor MN or anchor SN).
  • the node sends data forwarding information for data transmission between the source SN and the target SN to the target SN (second node).
  • the first node sends the data forwarding information for data transmission between the source MN and the target SN to the third node (anchor base station or anchor MN), and the third node (anchor base station or anchor MN) forwards the source Data forwarding information for data transmission between the MN and the target SN is sent to the target SN (second node).
  • the following uses the trigger condition for selective activation of the MCG cell group as an example to illustrate.
  • the data is sent from the first node (source MN or source SN or anchor base station or anchor MN or anchor SN) to the target MN (second node).
  • the data is sent from the second node target MN to the source MN or source SN or anchor base station or anchor MN or anchor SN (second node).
  • the first node (source MN or source SN or anchor base station or anchor MN or anchor SN) connects the data between the first node (source MN or source SN or anchor base station or anchor MN or anchor SN) and the target MN.
  • the sent data forwarding information is sent to the target SN (second node).
  • the first node source SN sends the data forwarding information for data transmission between the source SN and the target MN to the third node (source MN or anchor base station or anchor MN or anchor SN).
  • the third node (source MN or anchor SN
  • the base station or anchor point MN or anchor point SN) sends the data forwarding information for data transmission between the source SN and the target MN to the target MN (second node).
  • the first node source MN sends the data forwarding information for data transmission between the source MN and the target MN to the third node (anchor base station or anchor MN), and the third node (anchor base station or anchor MN) forwards the data between the source MN and the target MN.
  • Data forwarding information for data transmission between target MNs is sent to the target MN (second node).
  • FIG. 8 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application.
  • the method is executed by the first node, as shown in Figure 8.
  • the method may include but is not limited to the following steps:
  • the second node includes the target SN and the target MN.
  • the first node sends fifth data forwarding information for data transmission between the first node and the target SN to the target SN.
  • the first node is one of the source MN, source SN, anchor base station, anchor MN or anchor SN.
  • the first node (source MN or source SN or anchor base station or anchor MN or anchor SN) connects the first node (source MN or source SN or anchor base station or anchor MN or anchor SN) with Data forwarding information (fifth data forwarding information) for data transmission between target SNs is sent to the target SN.
  • Data forwarding information (fifth data forwarding information) for data transmission between target SNs is sent to the target SN.
  • the first node sends fifth data forwarding information for data transmission between the first node and the target MN to the target MN.
  • the first node is one of the source MN, source SN, anchor base station, anchor MN or anchor SN.
  • the first node (source MN or source SN or anchor base station or anchor MN or anchor SN) connects the first node (source MN or source SN or anchor base station or anchor MN or anchor SN) with Data forwarding information (fifth data forwarding information) for data transmission between target MNs is sent to the target MN.
  • Data forwarding information (fifth data forwarding information) for data transmission between target MNs is sent to the target MN.
  • the source node when the first node is the source node, for any target node among the target SN and the target MN, the source node sends the fourth data forwarding information to the third node, and the third node is used to forward the fourth data forwarding information. Transfer the information to the target node.
  • the trigger condition is set to simultaneous selective activation of MCG and SCG.
  • the second node includes the target SN and the target MN.
  • the first node sends data to the target SN for data transmission between the first node and the target SN.
  • the first node sends the fifth data forwarding information to the target MN for data transmission between the first node and the target MN, which can realize fast transmission of data.
  • FIG. 9 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application.
  • the method is executed by the second node, as shown in Figure 9.
  • the method may include but is not limited to the following steps:
  • S91 Receive data forwarding information sent by the first node according to the set trigger event.
  • the trigger event can be set to selectively activate the Secondary Cell Group (Secondary Cell Group, referred to as SCG); the trigger event can be set to selectively activate the Master Cell Group (Master Cell Group, referred to as MCG); the trigger can be set to The event is the selective activation of MCG and SCG at the same time; the trigger event can be set to the mobility process triggered by conditions of simultaneous MCG and SCG.
  • SCG Secondary Cell Group
  • MCG Master Cell Group
  • MCG Master Cell Group
  • the event is the selective activation of MCG and SCG at the same time; the trigger event can be set to the mobility process triggered by conditions of simultaneous MCG and SCG.
  • the network side may provide candidate cells or cell group configurations to the terminal equipment.
  • the cell type for the candidate cell includes at least one of the following, for example: PCell, PSCel, SpCell, SCell, SpCell, MCG SCell, SCG SCell, etc.
  • the candidate cell may have multiple potential cell types.
  • the cell type of the candidate cell may be obtained based on network side instructions or protocol agreements.
  • the candidate cell group includes at least one of the following, for example: MCG, SCG, etc.
  • the candidate cell group may have multiple potential cell group types.
  • the cell group type of the candidate cell group may be obtained based on network side instructions or protocol agreements.
  • the network side can negotiate the user plane data, that is, the transmission path of the data radio bearer DRB through the network node.
  • the second node can directly receive the data forwarding information sent by the first node according to the set trigger event according to the trigger event; optionally, the second node can receive the data sent by the first node via the third node. Forward information.
  • the first node is one of the source MN, source SN, anchor base station, anchor MN or anchor SN.
  • the second node may be the source MN, source SN, etc.
  • the trigger event also includes any one of the following trigger conditions, that is, it needs to be triggered when any one of the following conditions is met.
  • the trigger condition is met.
  • the first node sends a "Cell Group Selective Activation Candidate Request Message" to the second node, and after accepting the request, the second node sends a "Cell Group Selective Activation Candidate Confirmation Message" to the first node.
  • the trigger condition is met before, after or at the same time as the first node sends the "Activate Candidate Cell or Cell Group Configuration Command".
  • the "Activate Candidate Cell or Cell Group Configuration Command” is a configuration command sent to the terminal. Order.
  • the triggering condition is met.
  • the first node sends an "activate "candidate cell or cell group) configuration command" to the terminal.
  • the terminal activates the “candidate cell or cell group” configuration on its own based on the trigger event.
  • the second node sends a "candidate cell or cell group” configuration activation confirmation message to the first node. .
  • the data forwarding information can be set to the data path identification information of the terminal device, the data forwarding information can be set to the data bearer identification, the data forwarding information can be set to the data bearer type, the data forwarding information can be set to The message is data sending status information.
  • the first node can send data forwarding information to the second node according to the set trigger event, and the second node can receive the data forwarding information sent by the first node according to the set trigger event. Transfer information.
  • the second node may receive the data forwarding information sent by the first node according to the set trigger event.
  • fast data transmission can be achieved through functions such as data forwarding and path conversion, and it can also be used when multiple cell groups are changed at the same time. Perform data forwarding and path conversion.
  • FIG. 10 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application.
  • the method is executed by the second node, as shown in Figure 10.
  • the method may include but is not limited to the following steps:
  • S101 Receive data forwarding information sent by the first node via the third node.
  • the network side may provide candidate cells or cell group configurations to the terminal.
  • the cell type for the candidate cell includes at least one of the following, for example: PCell, PSCel, SpCell, SCell, SpCell, MCG SCell, SCG SCell, etc.
  • the candidate cell may have multiple potential cell types.
  • the cell type of the candidate cell may be obtained based on network side instructions or protocol agreements.
  • the candidate cell group includes at least one of the following, for example: MCG, SCG, etc.
  • the candidate cell group may have multiple potential cell group types.
  • the cell group type of the candidate cell group may be obtained based on network side instructions or protocol agreements.
  • the network side can negotiate the user plane data, that is, the transmission path of the data radio bearer DRB through the network node.
  • the first node may send data forwarding information to the second node via the third node, and the second node may receive the data forwarding information sent by the first node via the third node.
  • the first node is one of the source MN, source SN, anchor base station, anchor MN or anchor SN.
  • the second node may be the source MN, source SN, etc.
  • the third node is one of the source MN, anchor base station, anchor MN or anchor SN.
  • the trigger condition is met.
  • the first node sends a "Cell Group Selective Activation Candidate Request Message" to the second node, and after accepting the request, the second node sends a "Cell Group Selective Activation Candidate Confirmation Message" to the first node.
  • the trigger condition is met before, after or at the same time as the first node sends the "Activate Candidate Cell or Cell Group Configuration Command".
  • the "Activate Candidate Cell or Cell Group Configuration Command” is a configuration command sent to the terminal. Order.
  • the triggering condition is met.
  • the first node sends an "activate "candidate cell or cell group) configuration command" to the terminal.
  • the terminal activates the “candidate cell or cell group” configuration on its own based on the trigger event.
  • the second node sends a "candidate cell or cell group” configuration activation confirmation message to the first node. .
  • the data forwarding information can be set to the data path identification information of the terminal device, the data forwarding information can be set to the data bearer identification, the data forwarding information can be set to the data bearer type, the data forwarding information can be set to The message is data sending status information.
  • the first node can send data forwarding information to the second node via the third node, and the second node can receive the data forwarding information sent by the first node via the third node.
  • the data forwarding information may be at least one of data path identification information, data bearer identification, data bearer type, and data transmission status information of the terminal device.
  • the data path identification information of the terminal device may be at least one of the first data transmission source address and the first data transmission destination address included in the downlink transmission path identification information or the second data transmission destination address included in the uplink transmission path identification information. At least one of the data sending source address and the second data sending destination address.
  • the data bearer identifier may be at least one of a session identifier, a data flow identifier, a service identifier, a transmission path identifier, and a logical channel identifier.
  • Data Radio Bearer (DRB for short) can be divided into different bearer types according to the cell group for data transmission.
  • the bearer type can be Master Cell Group bearer (Master Cell Group bearer), optionally, the bearer type can be Secondary Cell Group bearer (Secondary Cell Group bearer), and the bearer type can be Split bearer.
  • the data transmission status information includes downlink data transmission status information including at least one of a number corresponding to the first transmission data and a number corresponding to the first discarded data, and the uplink data transmission status information includes a number corresponding to the second transmission data. At least one of the numbers corresponding to the second discarded data.
  • the number corresponding to the first sent data and the number corresponding to the second sent data include at least one of the following situations: the first sent data number; the first N numbers corresponding to the first sent data number, N is positive. Integer; the last M numbers corresponding to the first sent data number, M is a positive integer; the number corresponding to each sent data; the number corresponding to the first discarded data and the number corresponding to the second discarded data include at least one of the following situations One item: discard the lower boundary value of the data number; discard the upper boundary value of the data number; discard the lower boundary value and upper boundary value of the data number.
  • the second node may receive the data forwarding information sent by the first node via the third node.
  • fast data transmission can be achieved through functions such as data forwarding and path conversion, and it can also be used when multiple cell groups are changed at the same time. Perform data forwarding and path conversion.
  • Figure 11 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application.
  • the method is executed by the second node, as shown in Figure 11.
  • the method may include but is not limited to the following steps:
  • condition-triggered mobility processes include: Conditional Handover (CHO), Conditional PSCell Addition (CPA), Conditional PSCell Change (CPC) ).
  • S112 Receive the data forwarding information sent by the source MN to the target node.
  • the source MN sending data forwarding information to the target node is applicable to two different mobility processes, namely conditional handover CHO and conditional master node.
  • the secondary cell adds a CPA mobility procedure or a conditional handover CHO and a conditional primary and secondary cell change CPC mobility procedure.
  • data is sent from the source MN to the target SN or data is sent from the source MN to the target MN.
  • data is sent from the target SN to the source MN or data is sent from the target MN to the source MN.
  • the data forwarding information is first data forwarding information used for data transmission between the source MN and the target MN, the target node is the target MN, and the source MN sends the first data forwarding information to the target MN.
  • the data forwarding information is second data forwarding information used for data transmission between the source MN and the target secondary node SN, the target node is the target SN, and the source MN directly sends the second data forwarding information to the target SN, Or the source MN sends the second data forwarding information to the target MN, and the target MN is used to forward the second data forwarding information to the target SN.
  • the first node is the source master node MN
  • the second node is the target node. After the first node sends the data forwarding information to the second node, it can receive the data forwarding information sent by the source MN.
  • the following is an example of the process of adding CPA mobility to CHO and conditional primary and secondary cells when triggering event condition switching, and the process of the source MN sending data forwarding information to the target node.
  • data is sent from the source MN to the target SN or data is sent from the source MN to the target MN.
  • data is sent from the target SN to the source MN or data is sent from the target MN to the source MN.
  • Step a The source MN (first node) sends the data forwarding information to the target node (second node).
  • the method of sending data forwarding information includes at least one of the following: data forwarding information used for data sending between the source MN and the target MN, data sent by the source MN to the target MN, and data used for data sending between the source MN and the target SN. Forwarding information, the source MN sends to the target SN, data forwarding information used for data transmission between the source MN and the target SN, the source MN sends to the target MN.
  • the data forwarding information includes at least one of the following:
  • Terminal data path identification information includes at least one of the following: downlink transmission path identification information.
  • the downlink transmission path identification information includes at least one of the following: data transmission source address and data transmission target address.
  • the uplink transmission path identification information includes at least one of the following: a data transmission source address and a data transmission target address.
  • the bearer identification includes at least one of the following: session identification (for example, session ID), data flow identification (for example, QoS flow ID), service identification (for example, Temporary Mobile Group Identity (TMGI)) , transmission path identification (such as MCG transmission path or SCG transmission path), logical channel identification (such as logical channel ID).
  • session identification for example, session ID
  • data flow identification for example, QoS flow ID
  • service identification for example, Temporary Mobile Group Identity (TMGI)
  • transmission path identification such as MCG transmission path or SCG transmission path
  • logical channel identification such as logical channel ID
  • Bearer type wherein, the bearer identification includes at least one of the following: Master Cell Group bearer.
  • the bearer type can be Secondary Cell Group bearer (Secondary Cell Group bearer).
  • the bearer type can be Split bearer. ).
  • the information includes at least one of the following: a number corresponding to the sent data (where the number includes at least one of the following: PDCP SN; PDCP HFN (Hyper Frame Number, super frame number); PDCP COUNT.).
  • the "number corresponding to the sent data” includes at least one of the following: the first sent data number.
  • the first number corresponding to the first sent data number (for example: the corresponding number of the first sent data is N, then the number is (N-1)), the last number corresponding to the first sent data number (for example: the first The number corresponding to the sent data is N, then the number is (N+1)) the number corresponding to each piece of data sent (for example: the number of the data sent through the bitmap identification (every 1 bit marks 1 number); the number corresponding to the discarded data number.
  • the "number corresponding to the discarded data” includes any of the following: the lower boundary value of the discarded data number (for example: if the data number is greater than or equal to the lower boundary value, the data is discarded), the upper boundary value of the discarded data number Boundary value (for example: if the data number is less than or equal to the upper boundary value, the data is discarded), the lower boundary value of the discarded data number and the upper boundary value of the discarded data number (for example: if the data number is greater than or equal to the lower boundary value) If the upper boundary value is less than or equal to the upper boundary value, the data will be discarded).
  • Uplink data transmission status information includes at least one of the following: a number corresponding to the sent data (same as above), a number corresponding to the discarded data (same as above), which will not be described again here.
  • Step b When the source MN sends data forwarding information for data transmission between the source MN and the target SN to the target MN, the target MN sends the data forwarding information for data transmission between the source MN and the target SN to the target SN. .
  • the following is an example of the process in which the source MN sends data forwarding information to the target node when the trigger event conditions are conditional switching CHO and conditional primary and secondary cell change CPC mobility process.
  • the data is sent from the source MN to the target SN or the data is sent from the source MN to the target MN or the data is sent from the source SN to the target SN or the data is sent from the source SN to the source MN and then from the source MN to Target SN.
  • the data is sent from the target SN to the source MN or the data is sent from the target MN to the source MN or the data is sent from the target SN to the source SN or the data is sent from the target SN to the source MN and then from the source MN to SourceSN.
  • Step a The source MN (first node) sends the data forwarding information to the target node (second node).
  • Step b When the source MN sends data forwarding information for data transmission between the source MN and the target SN to the target MN, the target MN sends the data forwarding information for data transmission between the source MN and the target SN to the target SN. .
  • Step a The source SN sends data forwarding information for data transmission between the source SN and the target SN to the source MN.
  • Step b According to step a, the source MN sends data forwarding information for data transmission between the source SN and the target SN to the target SN.
  • the trigger event is set to a mobility process triggered based on conditions.
  • the first node is the source master node MN and the second node is the target node
  • the second node sends data to the target node through the source MN.
  • Forwarding information through negotiation between network nodes, can realize fast transmission of data through functions such as data forwarding and path conversion when the preconfigured cell or cell group configuration is updated on the network side, and can be used in multiple cell groups. When changing at the same time, data forwarding and path conversion are performed.
  • Figure 12 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application. The method is executed by the second point, as shown in Figure 12. The method may include but is not limited to the following steps:
  • the mobility process based on condition triggering includes conditional handover CHO and conditional primary and secondary cell change CPC.
  • the first node is the source SN and the second node is the target SN.
  • the source SN sends the third data forwarding information to the target SN, which is applicable to the conditional handover CHO and conditional primary and secondary cell change CPC mobility processes.
  • the receiving source SN sends third data forwarding information for data transmission between the source SN and the target SN to the target SN or receives the third data forwarding information sent by the source SN to the source MN.
  • the third data forwarding information is sent by the source SN to the source MN.
  • the following explains the process of receiving the third data forwarding information sent by the source MN to the target SN.
  • data is sent from the source MN to the target SN, or data is sent from the source MN to the target MN, or data is sent from the source SN to the target SN, or data is sent from the source SN to the source MN, and then from the source MN to Target SN.
  • data is sent from the target SN to the source MN, or data is sent from the target MN to the source MN, or data is sent from the target SN to the source SN, or data is sent from the target SN to the source MN, and then from the source MN to SourceSN.
  • the source SN sends third data forwarding information for data transmission between the source SN and the target SN to the target SN.
  • the source SN sends the third data forwarding information to the source MN, and the source MN is used to forward the third data forwarding information to the target SN.
  • the second node may receive the data forwarding information sent by the source MN.
  • the mobility process based on condition triggering includes conditional handover CHO and conditional primary and secondary cell change CPC.
  • the first node is the source SN
  • the second node is the target SN
  • the second node can receive the signal from the source SN to the target SN.
  • Sending the third data forwarding information for data transmission between the source SN and the target SN or the third data forwarding information sent by the source SN to the source MN can realize fast transmission of data.
  • Figure 13 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application.
  • the method is executed by the second node, as shown in Figure 13.
  • the method may include but is not limited to the following steps:
  • the triggering condition when selective activation of a cell group, it can be selective activation of the secondary cell group SCG or the primary cell group MCG.
  • the target node when the trigger condition is set to selective activation of the secondary cell group SCG, the target node is the target SN at this time; optionally, when the trigger condition is set to selective activation of the primary cell group MCG, the target node is is the target MN.
  • S132 The receiving first node sends fourth data forwarding information for data transmission between the first node and the target node to the target node.
  • the setting of the first node is not limited in this application and can be selected according to actual conditions.
  • the first node may be the source MN;
  • the first node may be the source SN;
  • the first node may be the anchor base station;
  • the first node may be the anchor MN;
  • the first node may be the anchor point SN.
  • the data when the triggering condition is the selective activation of the SCG cell group, optionally, for downlink data, the data is sent from the source MN or source SN or anchor base station or anchor MN or anchor SN to the target SN. .
  • the data is sent from the target SN to the source MN or source SN or anchor base station or anchor MN or anchor SN.
  • the trigger condition is the selective activation of the MCG cell group
  • the data is sent from the source MN or source SN or anchor base station or anchor MN or anchor SN to the target MN.
  • the data is sent from the target MN to the source MN or source SN or anchor base station or anchor MN or anchor SN.
  • the first node sends the fourth data forwarding information for data transmission between the first node and the target node to the target node, and it can be selected according to the actual situation.
  • the source node can send the fourth data forwarding information to the third node, and the third node is used to forward the fourth data forwarding information. Transfer the information to the target node.
  • the first node when the first node is the source MN or source SN or anchor base station or anchor MN or anchor SN, the first node (source MN or source SN or anchor base station or anchor MN or anchor SN)
  • Data forwarding information fourth data forwarding information for data transmission between the first node (source MN or source SN or anchor base station or anchor point MN or anchor SN) and the target SN is sent to the target SN.
  • the source MN when the source node is the source MN, the source MN sends the fourth data forwarding information to the third node, and the third node is one of the anchor base station or the anchor MN.
  • the source MN when the source node is the source MN, the source MN sends data forwarding information (fourth data forwarding information) for data transmission between the source MN and the target SN to the third node (anchor base station or anchor MN) .
  • the third node (anchor base station or anchor MN) sends data forwarding information (fourth data forwarding information) for data transmission between the source MN and the target SN to the target SN.
  • the source SN when the source node is the source SN, the source SN sends the fourth data forwarding information to the third node, and the third node is the source MN, the anchor base station, the anchor MN or the anchor SN. A sort of.
  • the source SN when the source node is the source SN, the source SN sends data forwarding information (fourth data forwarding information) for data transmission between the source SN and the target SN to the third node (source MN or anchor base station or anchor base station).
  • the third node source MN or anchor point base station or anchor point MN or anchor point SN
  • the fourth data forwarding information information is sent to the target SN.
  • the second node may receive fourth data forwarding information sent by the first node for data transmission between the first node and the target node.
  • the trigger condition is set to selective activation of a cell group
  • the second node is the target node
  • the second node can receive the data sent by the first node to the target node for data transmission between the first node and the target node.
  • the fourth data forwarding information can realize fast transmission of data.
  • the following uses the trigger condition to selectively activate the SCG cell group as an example to illustrate.
  • the data is sent from the first node (source MN or source SN or anchor base station or anchor MN or anchor SN) to the target SN (second node).
  • source MN or source SN or anchor base station or anchor MN or anchor SN the first node
  • target SN the target SN
  • the data is sent from the target SN (second node) to the first node (source MN or source SN or anchor base station or anchor MN or anchor SN).
  • the first node (source MN or source SN or anchor base station or anchor MN or anchor SN) connects the data between the first node (source MN or source SN or anchor base station or anchor MN or anchor SN) and the target SN
  • the sent data forwarding information is sent to the target SN (second node).
  • the first node sends the data forwarding information for data transmission between the first node (source SN) and the target SN to the third node (source MN or anchor base station or anchor MN or anchor SN).
  • the node sends data forwarding information for data transmission between the source SN and the target SN to the target SN (second node).
  • the first node sends the data forwarding information for data transmission between the source MN and the target SN to the third node (anchor base station or anchor MN), and the third node (anchor base station or anchor MN) forwards the source Data forwarding information for data transmission between the MN and the target SN is sent to the target SN (second node).
  • the following uses the trigger condition for selective activation of the MCG cell group as an example to illustrate.
  • the data is sent from the first node (source MN or source SN or anchor base station or anchor MN or anchor SN) to the target MN (second node).
  • the data is sent from the second node target MN to the source MN or source SN or anchor base station or anchor MN or anchor SN (second node).
  • the first node (source MN or source SN or anchor base station or anchor MN or anchor SN) connects the data between the first node (source MN or source SN or anchor base station or anchor MN or anchor SN) and the target MN.
  • the sent data forwarding information is sent to the target SN (second node).
  • the first node source SN sends the data forwarding information for data transmission between the source SN and the target MN to the third node (source MN or anchor base station or anchor MN or anchor SN).
  • the third node (source MN or anchor SN
  • the base station or anchor point MN or anchor point SN) sends the data forwarding information for data transmission between the source SN and the target MN to the target MN (second node).
  • the first node source MN sends the data forwarding information for data transmission between the source MN and the target MN to the third node (anchor base station or anchor MN), and the third node (anchor base station or anchor MN) forwards the data between the source MN and the target MN.
  • Data forwarding information for data transmission between target MNs is sent to the target MN (second node).
  • the second node may receive fourth data forwarding information sent by the first node for data transmission between the first node and the target node.
  • Figure 14 is a schematic flowchart of a method for transmitting data forwarding information provided by an embodiment of the present application.
  • the method is executed by the second node, as shown in Figure 14.
  • the method may include but is not limited to the following steps:
  • S141 set the trigger condition to selective activation of MCG and SCG at the same time, and the second node includes the target SN and the target MN.
  • the second node includes the target SN and the target MN.
  • the second node receives the fifth data forwarding information sent by the first node to the target SN for data transmission between the first node and the target SN.
  • the first node is one of the source MN, source SN, anchor base station, anchor MN or anchor SN.
  • the first node (source MN or source SN or anchor base station or anchor MN or anchor SN) connects the first node (source MN or source SN or anchor base station or anchor MN or anchor SN) with Data forwarding information (fifth data forwarding information) for data transmission between target SNs is sent to the target SN.
  • Data forwarding information (fifth data forwarding information) for data transmission between target SNs is sent to the target SN.
  • the second node receives the fifth data forwarding information sent by the first node to the target MN for data transmission between the first node and the target MN.
  • the first node is one of the source MN, source SN, anchor base station, anchor MN or anchor SN.
  • the first node (source MN or source SN or anchor base station or anchor MN or anchor SN) connects the first node (source MN or source SN or anchor base station or anchor MN or anchor SN) with Data forwarding information (fifth data forwarding information) for data transmission between target MNs is sent to the target MN.
  • Data forwarding information (fifth data forwarding information) for data transmission between target MNs is sent to the target MN.
  • the source node when the first node is the source node, for any target node among the target SN and the target MN, the source node sends the fourth data forwarding information to the third node, and the third node is used to forward the fourth data forwarding information. Transfer the information to the target node.
  • the trigger condition is set to simultaneous selective activation of MCG and SCG.
  • the second node includes the target SN and the target MN.
  • the second node receives the information sent by the first node to the target SN for the first node and the target SN.
  • the second node receives the fifth data forwarding information for data transmission between the first node and the target MN, and the second node receives the fifth data forwarding information for data transmission between the first node and the target MN, which can realize fast transmission of data.
  • network equipment and terminal equipment may include hardware structures and software modules to implement the above functions in the form of hardware structures, software modules, or hardware structures plus software modules.
  • a certain function among the above functions can be executed by a hardware structure, a software module, or a hardware structure plus a software module.
  • FIG. 15 is a schematic structural diagram of a communication device 150 provided by an embodiment of the present application.
  • the communication device 150 shown in FIG. 15 may include a transceiver module 151 and a processing module 152.
  • the transceiving module 151 may include a sending module and/or a receiving module.
  • the sending module is used to implement the sending function
  • the receiving module is used to implement the receiving function.
  • the transceiving module 151 may implement the sending function and/or the receiving function.
  • the communication device 150 may be a terminal device, a device in the terminal device, or a device that can be used in conjunction with the terminal device.
  • the communication device 150 is a terminal device:
  • the transceiver module 151 is configured to send data forwarding information to the second node according to the set trigger event.
  • the transceiving module 151 is also configured to send the data forwarding information to the second node via the third node according to the set trigger event.
  • the setting trigger event includes any one of the following events: selective activation of secondary cell group SCG; selective activation of primary cell group MCG; simultaneous selective activation of MCG and SCG; simultaneous MCG and SCG based on Conditionally triggered mobility process.
  • the data forwarding information includes at least one of the following information: data path identification information of the terminal device; data bearer identification; data bearer type; and data transmission status information.
  • the data path identification information of the terminal device includes at least one of the following path identification information: downlink transmission path identification information, wherein the downlink transmission path identification information includes a first data transmission source address and a first data transmission source address. At least one of the data transmission target addresses; uplink transmission path identification information, wherein the uplink transmission path identification information includes at least one of a second data transmission source address and a second data transmission target address.
  • the data bearer identification includes at least one of the following identifications: session identification; data flow identification; service identification; transmission path identification; logical channel identification.
  • the data transmission status information includes at least one of the following status information: downlink data transmission status information, wherein the downlink data transmission status information includes a number corresponding to the first transmission data and a number corresponding to the first discarded data. At least one of the numbers is the uplink data transmission status information, wherein the uplink data transmission status information includes at least one of the number corresponding to the second transmission data and the number corresponding to the second discarded data.
  • the number corresponding to the first transmission data and the number corresponding to the second transmission data include at least one of the following situations: the first transmission data number; the first N numbers corresponding to the first transmission data number, so Said N is a positive integer;
  • the last M numbers corresponding to the first sent data number where M is a positive integer; the number corresponding to each sent data; the number corresponding to the first discarded data and the number corresponding to the second discarded data include the following At least one of the following conditions: discard the lower boundary value of the data number; discard the upper boundary value of the data number; discard the lower boundary value and the upper boundary value of the data number.
  • the transceiver module 151 is also configured to set the trigger event to be the condition-triggered mobility process, the first node is the source master node MN, and the second node is the target node; Sending data forwarding information to the second node according to the set trigger event includes: the source MN sending the data forwarding information to the target node.
  • the transceiver module 151 is also configured to, when the target node is a target master node MN, the data forwarding information is the first data forwarding used by the source MN to send to the target MN. Information; when the target node is a target secondary node SN, the data forwarding information is second data forwarding information for the source MN to directly send to the target SN, or is the source MN Second data forwarding information sent to the target SN via the target MN.
  • the transceiver module 151 is also used for the condition-triggered mobility process to include conditional handover CHO and conditional primary and secondary cell change CPC, the first node is the source SN, and the second node is the target SN;
  • the sending data forwarding information to the second node according to the set trigger event includes: the source SN sending third data forwarding information to the target SN for data transmission between the source SN and the target SN. ;
  • the source SN sends the third data forwarding information to the source MN, and the source MN is used to forward the third data forwarding information to the target SN.
  • the transceiver module 151 is also configured to set the trigger condition to be selective activation of a cell group, and the second node is the target node; and to send data forwarding to the second node according to the set trigger event.
  • Information includes: the first node sends fourth data forwarding information for data transmission between the first node and the target node to the target node; wherein the first node is a source MN, One of the source SN, anchor base station, anchor MN or anchor SN.
  • the transceiver module 151 is also configured for the first node to be a source node.
  • the process of the first node sending the fourth data forwarding information to the target node includes: the source node sends the fourth data forwarding information to the target node.
  • the third node sends the fourth data forwarding information, and the third node is used to forward the fourth data forwarding information to the target node.
  • the transceiver module 151 is also configured for the source node to be the source MN, and the source MN to send the fourth data forwarding information to the third node, and the third node is an anchor base station. Or one of the anchor MNs; the source node is a source SN, and the source SN sends the fourth data forwarding information to the third node, and the third node is a source MN, an anchor base station, One of anchor point MN or anchor point SN.
  • the set trigger condition is SCG selective activation, and the target node is the target SN; the set trigger condition is MCG selective activation, and the target node is the target MN.
  • the transceiver module 151 is also used to set the trigger condition to be simultaneous selective activation of MCG and SCG, and the second node includes the target SN and the target MN; and according to the set trigger event, send the message to the second node.
  • the node sends data forwarding information, including: the first node sends fifth data forwarding information for data transmission between the first node and the target SN to the target SN; the first node sends to the target SN the fifth data forwarding information for data transmission between the first node and the target SN;
  • the target MN sends fifth data forwarding information for data transmission between the first node and the target MN, where the first node is a source MN, a source SN, an anchor base station, and an anchor MN. Or one of the anchor SNs.
  • the transceiver module 151 is also configured for the first node to be a source node.
  • the method further includes: for any target node among the target SN and the target MN, the first node sends a message to the target node.
  • the process of a node sending the fifth data forwarding information includes: the source node sending the fourth data forwarding information to a third node, and the third node is configured to forward the fourth data forwarding information to The target node.
  • the first node sends data forwarding information to the second node.
  • the preconfigured cell or cell group configuration is updated on the network side
  • Functions such as data forwarding and path conversion realize fast transmission of data, and can perform data forwarding and path conversion when multiple cell groups are changed at the same time.
  • the communication device 150 is a terminal device:
  • the transceiver module 151 is configured to receive data forwarding information sent by the first node according to the set trigger event.
  • the transceiving module 151 is also configured to receive the data forwarding information sent by the first node via the third node.
  • the setting trigger event includes any one of the following events: selective activation of secondary cell group SCG; selective activation of primary cell group MCG; simultaneous selective activation of MCG and SCG; simultaneous MCG and SCG based on Conditionally triggered mobility processes.
  • the data forwarding information includes at least one of the following information: data path identification information of the terminal device; data bearer identification; data bearer type; and data transmission status information.
  • the data path identification information of the terminal device includes at least one of the following path identification information: downlink transmission path identification information, wherein the downlink transmission path identification information includes a first data transmission source address and a first data transmission source address. At least one of the data transmission target addresses; uplink transmission path identification information, wherein the uplink transmission path identification information includes at least one of a second data transmission source address and a second data transmission target address.
  • the data bearer identification includes at least one of the following identifications: session identification; data flow identification; service identification; transmission path identification; logical channel identification.
  • the data transmission status information includes at least one of the following status information: downlink data transmission status information, wherein the downlink data transmission status information includes a number corresponding to the first transmission data and a number corresponding to the first discarded data. At least one of the numbers is the uplink data transmission status information, wherein the uplink data transmission status information includes at least one of the number corresponding to the second transmission data and the number corresponding to the second discarded data.
  • the number corresponding to the first transmission data and the number corresponding to the second transmission data include at least one of the following situations: the first transmission data number; the first N numbers corresponding to the first transmission data number, so Said N is a positive integer;
  • the last M numbers corresponding to the first sent data number where M is a positive integer; the number corresponding to each sent data; the number corresponding to the first discarded data and the number corresponding to the second discarded data include the following At least one of the following conditions: discard the lower boundary value of the data number; discard the upper boundary value of the data number; discard the lower boundary value and the upper boundary value of the data number.
  • the transceiver module 151 is also configured to set the trigger event to be the condition-triggered mobility process, the first node is the source master node MN, and the second node is the target node; Receiving the data forwarding information sent by the first node according to the set trigger event includes: receiving the data forwarding information sent by the source MN.
  • the transceiver module 151 is also configured to, when the target node is a target master node MN, the data forwarding information is the first data forwarding used by the source MN to send to the target MN. Information; receiving the first data forwarding information directly sent by the source MN; when the target node is a target secondary node SN, the data forwarding information is used by the source MN to forward the data to the target.
  • the transceiver module 151 is also used for the condition-triggered mobility process to include CHO and CPC, the first node is the source SN, and the second node is the target SN; the receiving first node is based on Setting the data forwarding information that triggers the event transmission includes: receiving the third data forwarding information sent by the source SN for data transmission between the source SN and the target SN; or receiving the data forwarded by the source MN.
  • the third data forwarding information is sent by the source SN to the source MN.
  • the transceiver module 151 is also configured to set the trigger condition to be selective activation of a cell group, and the second node is the target node; and to receive the data forwarding sent by the first node according to the set trigger event.
  • Information includes: receiving fourth data forwarding information sent by the first node for data transmission between the first node and the target node; wherein the first node is a source MN, a source SN, One of anchor base station, anchor MN or anchor SN.
  • the transceiver module 151 is also configured to receive the fourth data forwarding information sent by the first node when the first node is a source node, including: receiving the third data forwarded by a third node.
  • the fourth data forwarding information is sent by the source node to the third node.
  • the source node is the source MN, and the third node is one of an anchor base station or an anchor MN; the source node is a source SN, and the third node is a source MN or an anchor MN.
  • the set trigger condition is SCG selective activation, and the target node is the target SN; the set trigger condition is MCG selective activation, and the target node is the target MN.
  • the transceiver module 151 is also used to set the trigger condition to be simultaneous selective activation of MCG and SCG, and the second node includes the target SN and the target MN; the receiving first node triggers the event according to the set
  • the sent data forwarding information includes: the second node is the target SN, and the target SN receives the third message sent by the first node for data transmission between the first node and the target SN. 5.
  • Data forwarding information; the second node is the target MN, and the target MN receives the fifth data forwarding information sent by the first node for data transmission between the first node and the target MN. forwarding information, wherein the first node is one of the source MN, source SN, anchor base station, anchor MN or anchor SN.
  • the transceiver module 151 is also used when the first node is the source node, and the method further includes:
  • the process of receiving the fifth data forwarding information sent by the first node includes:
  • the fifth data forwarding information forwarded by a third node is received, and the fifth data forwarding information is sent by the source node to the third node.
  • the second node receives the data forwarding information sent by the first node according to the set trigger event.
  • fast data transmission can be achieved through functions such as data forwarding and path conversion, and it can also be used when multiple cell groups are changed at the same time. Perform data forwarding and path conversion.
  • FIG. 16 is a schematic structural diagram of another communication device 160 provided by an embodiment of the present application.
  • the communication device 160 may be a terminal device, a network device, a chip, a chip system, or a processor that supports a terminal device to implement the above method, or a chip, a chip system, or a processor that supports a network device to implement the above method. Processor etc.
  • the device can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.
  • Communication device 160 may include one or more processors 161.
  • the processor 161 may be a general-purpose processor or a special-purpose processor, or the like. For example, it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data.
  • the central processor can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.) and execute computer programs. , processing data for computer programs.
  • the communication device 160 may also include one or more memories 162, on which a computer program 164 may be stored.
  • the processor 161 executes the computer program 164, so that the communication device 160 performs the steps described in the above method embodiments. method.
  • the memory 162 may also store data.
  • the communication device 160 and the memory 162 can be provided separately or integrated together.
  • the communication device 160 may also include a transceiver 165 and an antenna 166.
  • the transceiver 165 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions.
  • the transceiver 165 may include a receiver and a transmitter.
  • the receiver may be called a receiver or a receiving circuit, etc., used to implement the receiving function;
  • the transmitter may be called a transmitter, a transmitting circuit, etc., used to implement the transmitting function.
  • the communication device 160 may also include one or more interface circuits 167.
  • the interface circuit 167 is used to receive code instructions and transmit them to the processor 161 .
  • the processor 161 executes the code instructions to cause the communication device 160 to perform the method described in the above method embodiment.
  • the processor 161 may include a transceiver for implementing receiving and transmitting functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together.
  • the above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.
  • the processor 161 may store a computer program 163, and the computer program 163 runs on the processor 161, causing the communication device 160 to perform the method described in the above method embodiment.
  • the computer program 163 may be solidified in the processor 161, in which case the processor 161 may be implemented by hardware.
  • the communication device 160 may include a circuit, which may implement the functions of sending or receiving or communicating in the foregoing method embodiments.
  • the processor and transceiver described in this application can be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board (PCB), electronic equipment, etc.
  • the processor and transceiver can also be 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 sending device or a receiving device (such as the receiving device in the foregoing method embodiment), but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may not be limited to Limitations of Figure 16.
  • the communication device may be a stand-alone device or may be part of a larger device.
  • the communication device may be:
  • the IC collection may also include storage components for storing data and computer programs;
  • the communication device may be a chip or a chip system
  • the schematic structural diagram of the chip shown in FIG. 17 refer to the schematic structural diagram of the chip shown in FIG. 17 .
  • the chip shown in FIG. 17 includes a processor 171 and an interface 172.
  • the number of processors 171 may be one or more, and the number of interfaces 172 may be multiple.
  • the chip also includes a memory 173, which is used to store necessary computer programs and data.
  • the chip is used to implement the functions of any of the above method embodiments when executed.
  • Embodiments of the present application also provide a communication system for PSCCH transmission.
  • the system includes the communication device as the terminal equipment in the aforementioned embodiment of FIG. 15 , or the system includes the communication device as the terminal equipment in the aforementioned embodiment of FIG. 17 .
  • This application also provides a readable storage medium on which instructions are stored. When the instructions are executed by a computer, the functions of any of the above method embodiments are implemented.
  • This application also provides a computer program product, which, when executed by a computer, implements the functions of any of the above method embodiments.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer programs.
  • the computer program When the computer program is loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program may be stored in or transferred from one computer-readable storage medium to another, for example, the computer program may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated.
  • the usable media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid state disks, SSD)) etc.
  • magnetic media e.g., floppy disks, hard disks, magnetic tapes
  • optical media e.g., high-density digital video discs (DVD)
  • DVD digital video discs
  • semiconductor media e.g., solid state disks, SSD
  • At least one in this application can also be described as one or more, and the plurality can be two, three, four or more, which is not limited by this application.
  • the technical feature is distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D”, etc.
  • the technical features described in “first”, “second”, “third”, “A”, “B”, “C” and “D” are in no particular order or order.
  • the corresponding relationships shown in each table in this application 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 this application.
  • 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 may also be other names understandable by the communication device, and the values or expressions of the parameters may also be other values or expressions understandable 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. wait.
  • Predefinition in this application can be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, solidification, or pre-burning.

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Abstract

本申请实施例公开了一种数据前转信息的传输方法及其装置，可以在通信系统中，该方法包括第一节点可以根据设定触发事件，向第二节点发送数据前转信息。本申请实施例中，通过网络节点间的协商，可以在网络侧对预配置的小区或小区组配置进行更新时，通过数据转发和路径转换等功能，实现数据的快速传输，而且能够在多个小区组同时变更时，进行数据转发和路径转换。

Description

一种数据前转信息的传输方法及其装置 技术领域
本申请涉及数据处理技术领域，尤其涉及一种数据前转信息的传输方法及其装置。
背景技术
在当前第五代移动通信技术(5th Generation Mobile Communication Technology，简称5G)系统中，网络侧可以给终端提供“预配置的小区(或小区组)”用于后续选择性激活小区(或小区组)。如何对相关的上行或下行发送数据进行转发，以及进行发送路径的选择，从而减少数据发送的延时是需要解决的问题。
发明内容
本申请实施例提供一种数据前转信息(Data Forwarding Information)的传输方法及其装置，通过网络节点间的协商，可以在网络侧对“预配置的小区(或小区组)”配置进行更新时，通过数据转发和路径转换等功能，实现数据的快速传输，而且能够在多个小区组同时变更时，进行数据转发和路径转换。
第一方面，本申请实施例提供一种数据前转信息的传输方法，由第一节点执行，该方法包括：
根据设定触发事件，向第二节点发送数据前转信息。
本申请实施例中，第一节点可以根据设定触发事件，向第二节点发送数据前转信息，可以实现数据的快速传输。
第二方面，本申请实施例提供一种数据前转信息的传输方法，由第二节点执行，该方法包括：
接收第一节点根据设定触发事件发送的数据前转信息
本申请实施例中，第二节点可以接收第一节点根据设定触发事件发送的数据前转信息，可以实现数据的快速传输。
第三方面，本申请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所述的方法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申请中的部分或全部实施例中的功能，也可以具备单独实施本申请中的任一个实施例的功能。所述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。所述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。
在一种实现方式中，该通信装置的结构中可包括收发模块和处理模块，所述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。所述收发模块用于支持通信装置与其他设备之间的通信。所述通信装置还可以包括存储模块，所述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。
第四方面，本申请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所述的方法示例中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申请中的部分或全部实施例中的功能，也可以具备单独实施本申请中的任一个实施例的功能。所述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。所述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。
在一种实现方式中，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。所述通信 装置还可以包括存储模块，所述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。
第五方面，本申请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，执行上述第一方面所述的方法。
第六方面，本申请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，执行上述第二方面所述的方法。
第七方面，本申请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；所述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所述的方法。
第八方面，本申请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；所述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所述的方法。
第九方面，本申请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，该处理器用于运行所述代码指令以使该装置执行上述第一方面所述的方法。
第十方面，本申请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，该处理器用于运行所述代码指令以使该装置执行上述第二方面所述的方法。
第十一方面，本申请实施例提供一种数据前转信息的传输的通信系统，该系统包括第三方面所述的通信装置以及第四方面所述的通信装置，或者，该系统包括第五方面所述的通信装置以及第六方面所述的通信装置，或者，该系统包括第七方面所述的通信装置以及第八方面所述的通信装置，或者，该系统包括第九方面所述的通信装置以及第十方面所述的通信装置。
第十二方面，本发明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，当所述指令被执行时，使所述终端设备执行上述第一方面所述的方法。
第十三方面，本发明实施例提供一种可读存储介质，用于储存为上述网络设备所用的指令，当所述指令被执行时，使所述网络设备执行上述第二方面所述的方法。
第十四方面，本申请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第一方面所述的方法。
第十五方面，本申请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第二方面所述的方法。
第十六方面，本申请提供一种芯片系统，该芯片系统包括至少一个处理器和接口，用于支持终端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，所述芯片系统还包括存储器，所述存储器，用于保存终端设备必要的计算机程序和数据。该芯片系统，可以由芯片构成，也可以包括芯片和其他分立器件。
第十七方面，本申请提供一种芯片系统，该芯片系统包括至少一个处理器和接口，用于支持网络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，所述芯片系统还包括存储器，所述存储器，用于保存网络设备必要的计算机程 序和数据。该芯片系统，可以由芯片构成，也可以包括芯片和其他分立器件。
第十八方面，本申请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第一方面所述的方法。
第十九方面，本申请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第二方面所述的方法。
附图说明
为了更清楚地说明本申请实施例或背景技术中的技术方案，下面将对本申请实施例或背景技术中所需要使用的附图进行说明。
图1是本申请实施例提供的一种通信系统的架构示意图；
图2是本申请实施例提供的一种数据前转信息的传输方法的流程示意图；
图3是本申请实施例提供的一种数据前转信息的传输方法的流程示意图；
图4是本申请实施例提供的一种小区组不同承载类型的示意图；
图5是本申请实施例提供的一种数据前转信息的传输方法的流程示意图；
图6是本申请实施例提供的一种数据前转信息的传输方法的流程示意图；
图7是本申请实施例提供的一种数据前转信息的传输方法的流程示意图；
图8是本申请实施例提供的一种数据前转信息的传输方法的流程示意图；
图9是本申请实施例提供的一种数据前转信息的传输方法的流程示意图；
图10是本申请实施例提供的一种数据前转信息的传输方法的流程示意图；
图11是本申请实施例提供的一种数据前转信息的传输方法的流程示意图；
图12是本申请实施例提供的一种数据前转信息的传输方法的流程示意图；
图13是本申请实施例提供的一种数据前转信息的传输方法的流程示意图；
图14是本申请实施例提供的一种数据前转信息的传输方法的流程示意图；
图15是本申请实施例提供的一种通信装置的结构示意图；
图16是本申请实施例提供的一种通信装置的结构示意图；
图17是本申请实施例提供的一种芯片的结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开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”可以被解释成为“在……时”或“当……时”或“响应于确定”
出于简洁和便于理解的目的，本文在表征大小关系时，所使用的术语为“大于”或“小于”、“高于”或“低于”。但对于本领域技术人员来说，可以理解：术语“大于”也涵盖了“大于等于”的含义，“小于”也涵盖了“小于等于”的含义；术语“高于”涵盖了“高于等于”的含义，“低于”也涵盖了“低于等于”的含义。
为了便于理解，首先介绍本申请涉及的术语。
数据前转(Data Forwarding)是在RLC AM(Radio Link Control AcknowledgedMode，无线链路控制应答模式)模式下，为了保证不丢包，在切换过程中，源小区在确定终端切换到目标小区后，源小区将没有被终端确认的DL PDCP SDU(Data Link Packet DataConvergence Protocol Service Data Units，数据链路分组数据汇聚协议业务数据单元)发送给终端切换到的目标小区，同时也会前转一些由核心网刚刚到达源小区且没有分配SN(Sequence Number，序列号)号的数据，以保证数据的连续性。
在多射频双连接(Multi-Radio Dual Connectivity，MR-DC)下，终端设备可以利用两个不同的调度提供的无线电资源，这些调度位于两个不同的节点上，一个作为主节点(Master Node，MN)，一个作为辅节点(Secondary Node，SN)。MN和SN通过网络接口连接，其中至少有MN连接到核心网络。其中，一个PScell或SCG对应一个SN，一个Pcell或MCG对应一个MN。
在5G系统中，采用双连接(Dual Connectivity，简称DC)架构，包括两个小区组：主小区组(Master Cell Group，简称MCG)，其中，MCG对应网络侧主节点(Master Node，简称MN)、辅小区组(Secondary Cell Group，简称SCG)，其中，SCG对应网络侧辅节点(Secondary Node，简称SN)。主小区组MCG包括1个主小区(Primary Cell，简称PCell)和1个或多个辅小区(Secondary Cell，简称SCell)；辅小区组SCG包括1个主辅小区(Primary Secondary Cell，简称PSCell)和1个或多个辅小区SCell。其中主小区PCell和主辅小区PSCell可以统称为特殊小区(Special Cell，简称SpCell)。
为了更好的理解本申请实施例公开的数据前转信息的传输方法，下面首先对本申请实施例适用的通信系统进行描述。
请参见图1，图1为本申请实施例提供的一种通信系统的架构示意图。该通信系统可包括但不限于一个网络设备和一个终端设备，图1所示的设备数量和形态仅用于举例并不构成对本申请实施例的限定，实际应用中可以包括两个或两个以上的网络设备，两个或两个以上的终端设备。图1所示的通信系统以包括一个网络设备101和一个终端设备102为例。
需要说明的是，本申请实施例的技术方案可以应用于各种通信系统。例如：长期演进(long term evolution，LTE)系统、第五代(5th generation，5G)移动通信系统、5G新空口(new radio，NR)系统，或者其他未来的新型移动通信系统等。还需要说明的是，本申请实施例中的侧链路还可以称为侧行链路或直通链路。
本申请实施例中的网络设备101是网络侧的一种用于发射或接收信号的实体。例如，网络设备101可以为演进型基站(evolved NodeB，eNB)、传输点(transmission reception point，TRP)、NR系统中的下一代基站(next generation NodeB，gNB)、其他未来移动通信系统中的基站或无线保真(wireless fidelity，WiFi)系统中的接入节点等。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。本申请实施例提供的网络设备可以是由集中单元(central unit，CU)与分布式单元(distributed unit，DU)组成的，其中，CU也可以称为控制单元(control unit)，采用CU-DU的结构可以将网络设备，例如基站的协议层拆分开，部分协议层的功能放在CU集中控制，剩下部分或全部协议层的功能分布在DU中，由CU集中控制DU。
本申请实施例中的终端设备102是用户侧的一种用于接收或发射信号的实体，如手机。终端设备也可以称为终端设备(terminal)、用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端设备(mobile terminal，MT)等。终端设备可以是具备通信功能的汽车、智能汽车、手机(mobile phone)、穿戴式设备、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端 设备、无人驾驶(self-driving)中的无线终端设备、远程手术(remote medical surgery)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备、智慧家庭(smart home)中的无线终端设备等等。本申请的实施例对终端设备所采用的具体技术和具体设备形态不做限定。
在侧链路通信中，存在4种侧链路传输模式。侧链路传输模式1和侧链路传输模式2用于终端设备直通(device-to-device，D2D)通信。侧链路传输模式3和侧链路传输模式4用于V2X通信。当采用侧链路传输模式3时，资源分配由网络设备101调度。具体的，网络设备101可以将资源分配信息发送给终端设备102，然后由该终端设备102向另一终端设备分配资源，以使得该另一终端设备可以通过分配到的资源向网络设备101发送信息。在V2X通信中，可以将信号较好或者可靠性较高的终端设备作为终端设备102。本申请实施例中提及的第一终端设备可以指该终端设备102，第二终端设备可以指该另一终端设备。
可以理解的是，本申请实施例描述的通信系统是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着系统架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
下面结合附图对本申请所提供的一种数据前转信息的传输方法及其装置进行详细地介绍。
请参见图2，图2是本申请实施例提供的一种数据前转信息的传输方法的流程示意图。该方法由第一节点执行，如图2所示，该方法可以包括但不限于如下步骤：
S21，根据设定触发事件，向第二节点发送数据前转信息。
需要说明的是，本申请中对于触发事件的设置不作限定，可以根据实际情况进行选取。
可选地，可以设定触发事件为辅小区组(Secondary Cell Group，简称SCG)选择性激活；可以设定触发事件为主小区组(Master Cell Group，简称MCG)选择性激活；可以设定触发事件为同时的MCG和SCG选择性激活；可以设定触发事件为同时的MCG和SCG基于条件触发的移动性过程。
进一步地，网络侧可以给终端设备提供候选小区或小区组配置。
可选地，对于候选小区的小区类型包括以下至少一种，例如：PCell、PSCel、SpCell、SCell、SpCell、MCG SCell、SCG SCell等。其中，对于1个特定候选小区，该候选小区的潜在小区类型可以为多种。
可选地，对于候选小区，可以基于网络侧指示或协议约定获取候选小区的小区类型。
可选地，对于候选小区组包括以下至少一种，例如：MCG、SCG等。其中，对于1个特定候选小区组，该候选小区组的潜在小区组类型可以为多种。
可选地地，对于候选小区组，可以基于网络侧指示或协议约定获取候选小区组的小区组类型。
进一步地，网络侧可以通过网络节点协商用户面数据，即数据无线承载DRB的发送路径。
需要说明的是，本申请中对于根据设定触发事件，向第二节点发送数据前转信息的具体方式不作限定，可以根据实际情况进行选取。
可选地，第一节点可以根据触发事件，直接向第二节点发送数据前转信息；可选地，第一节点可以经由第三节点向第二节点发送数据前转信息。
需要说明的是，本申请对于第一节点的设置不作限定，可以根据实际情况进行选取。
可选地，第一节点为源MN、源SN、锚点基站、锚点MN或者锚点SN中的一种。
需要说明的是，本申请对于第二节点的设置不作限定，可以根据实际情况进行选取。
可选地，第二节点可以为源MN、源SN等。
需要说明的是，在获取到触发事件后，可以对触发事件进行进一步的约定，触发事件还包括以下触发条件的任意一项，即需要在以下条件任意一项满足时候触发。
可选地，第一节点接收到节点B发送的“小区组选择性激活候选确认消息”后，则满足触发条件。
例如：第一节点发送“小区组选择性激活候选请求消息”给第二节点，第二节点接受该请求后发送“小区组选择性激活候选确认消息”给第一节点。
可选地，在第一节点发送“激活候选小区或小区组”配置命令”前或后或同时，则满足触发条件。其中，“激活“候选小区或小区组”配置命令”为发送给终端的命令。
可选地，第一节点接收到第二节点的“候选小区或小区组”配置激活确认消息后，则满足触发条件。
例如：第一节点发送“激活“候选小区或小区组)”配置命令”给终端。又例如：终端根据触发事件自行激活“候选小区或小区组”配置，第二节点在该“候选小区或小区组”配置激活后，发送“候选小区或小区组”配置激活确认消息给第一节点。
可选地，可以设定数据前转信息为终端设备的数据路径标识信息、可以设定数据前转信息为数据承载标识、可以设定数据前转信息为数据承载类型、可以设定数据前转信息为数据发送状态信息。
在本申请实施例中，在满足触发事件后，第一节点可以根据设定触发事件，向第二节点发送数据前转信息。
本申请实施例中，第一节点可以根据设定触发事件，向第二节点发送数据前转信息，通过网络节点间的协商，可以在网络侧对预配置的小区或小区组配置进行更新时，通过数据转发和路径转换等功能，实现数据的快速传输，而且能够在多个小区组同时变更时，进行数据转发和路径转换。
请参见图3，图3是本申请实施例提供的一种数据前转信息的传输方法的流程示意图。该方法由第一节点执行，如图3所示，该方法可以包括但不限于如下步骤：
S31，根据设定触发事件，经由第三节点向第二节点发送数据前转信息。
需要说明的是，本申请中对于触发事件的介绍可参见上述实施例中相关内容的记载，此处不再赘述。本申请中对于触发事件的设置不作限定，可以根据实际情况进行选取。
进一步地，网络侧可以给终端提供候选小区或小区组配置。
可选地，对于候选小区的小区类型包括以下至少一种，例如：PCell、PSCel、SpCell、SCell、SpCell、MCG SCell、SCG SCell等。其中，对于1个特定候选小区，该候选小区的潜在小区类型可以为多种。
可选地，对于候选小区，可以基于网络侧指示或协议约定获取候选小区的小区类型。
可选地，对于候选小区组包括以下至少一种，例如：MCG、SCG等。其中，对于1个特定候选小区组，该候选小区组的潜在小区组类型可以为多种。
可选地地，对于候选小区组，可以基于网络侧指示或协议约定获取候选小区组的小区组类型。
进一步地，网络侧可以通过网络节点协商用户面数据，即数据无线承载DRB的发送路径。
进一步地，第一节点可以经由第三节点向第二节点发送数据前转信息。
需要说明的是，本申请对于第一节点的设置不作限定，可以根据实际情况进行选取。
可选地，第一节点为源MN、源SN、锚点基站、锚点MN或者锚点SN中的一种。
需要说明的是，本申请对于第二节点的设置不作限定，可以根据实际情况进行选取。
可选地，第二节点可以为源MN、源SN等。
需要说明的是，本申请对于第三节点的设置不作限定，可以根据实际情况进行选取。
可选地，第三节点为源MN、锚点基站、锚点MN或者锚点SN中的一种。
可选地，第一节点接收到节点B发送的“小区组选择性激活候选确认消息”后，则满足触发条件。
例如：第一节点发送“小区组选择性激活候选请求消息”给第二节点，第二节点接受该请求后发送“小区组选择性激活候选确认消息”给第一节点。
可选地，在第一节点发送“激活候选小区或小区组”配置命令”前或后或同时，则满足触发条件。其中，“激活“候选小区或小区组”配置命令”为发送给终端的命令。
可选地，第一节点接收到第二节点的“候选小区或小区组”配置激活确认消息后，则满足触发条件。
例如：第一节点发送“激活“候选小区或小区组)”配置命令”给终端。又例如：终端根据触发事件自行激活“候选小区或小区组”配置，第二节点在该“候选小区或小区组”配置激活后，发送“候选小区或小区组”配置激活确认消息给第一节点。
可选地，可以设定数据前转信息为终端设备的数据路径标识信息、可以设定数据前转信息为数据承载标识、可以设定数据前转信息为数据承载类型、可以设定数据前转信息为数据发送状态信息。
在本申请实施例中，在满足触发事件后，第一节点可以经由第三节点向第二节点发送数据前转信息。
可选地，数据前转信息可以为终端设备的数据路径标识信息、数据承载标识、数据承载类型、数据发送状态信息中的至少一种。
可选地，终端设备的数据路径标识信息，可以为下行发送路径标识信息中包括的第一数据发送源地址和第一数据发送目标地址中的至少一个或上行发送路径标识信息中包括的第二数据发送源地址和第二数据发送目标地址中的至少一个。
可选地，数据承载标识，可以为会话标识、数据流标识、业务标识、发送路径标识、逻辑信道标识中的至少一种。
举例而言，如图4所示，数据无线承载(Data Radio Bearer，简称DRB)可以根据数据发送的小区组分为不同的承载类型。
可选地，承载类型可以为主小区组承载(Master Cell Group bearer)，可选地，承载类型可以为辅小区组承载(Secondary Cell Group bearer)，承载类型可以为分裂承载(Split bearer)。
可选地，数据发送状态信息，包括下行数据发送状态信息包括第一发送数据对应的编号和第一丢弃数据对应的编号中的至少一种以及上行数据发送状态信息包括第二发送数据对应的编号和第二丢弃数据对应的编号中的至少一种。
可选地，第一发送数据对应的编号和第二发送数据对应的编号均包括以下情况中的至少一项：首个发送数据编号；首个发送数据编号对应的前N个编号，N为正整数；首个发送数据编号对应的后M个编号，M为正整数；每1个发送数据对应的编号；第一丢弃数据对应的编号和第二丢弃数据对应的编号均包括以下情况中的至少一项：丢弃数据编号的下边界值；丢弃数据编号的上边界值；丢弃数据编号的下边界值和上边界值。
在本申请实施例中，根据设定触发事件，第一节点可以经由第三节点向第二节点发送数据前转信息，通过网络节点间的协商，可以在网络侧对预配置的小区或小区组配置进行更新时，通过数据转发和路径转换等功能，实现数据的快速传输，而且能够在多个小区组同时变更时，进行数据转发和路径转换。
请参见图5，图5是本申请实施例提供的一种数据前转信息的传输方法的流程示意图。该方法由第一节点执行，如图5所示，该方法可以包括但不限于如下步骤：
S51，设定触发事件为基于条件触发的移动性过程，第一节点为源主节点MN，第二节点为目标节点。
需要说明的是，基于条件触发的移动性过程包括：条件切换(Conditional Handover，简称CHO)、条件主辅小区添加(Conditional PSCell Addition，简称CPA)、条件主辅小区变更(Conditional PSCell Change，简称CPC)。
S52，源MN向目标节点发送数据前转信息。
需要说明的是，本申请中对于数据前转信息的介绍可参见上述实施例中相关内容的记载，此处不再赘述。本申请中对于数据前转信息的设置不作限定，可以根据实际情况进行选取。
需要说明的是，当第一节点为源主节点MN，第二节点为目标节点时，源MN向目标节点发送数据前转信息适用于两种不同的移动性过程，即条件切换CHO和条件主辅小区添加CPA移动性过程或条件切换CHO和条件主辅小区变更CPC移动性过程。
下面对源MN向目标节点发送数据前转信息的过程进行解释说明。
可选地，对于下行数据，数据从源MN发送给目标SN或者数据从源MN发送给目标MN
可选地，对于上行数据，数据从目标SN发送给源MN或者数据从目标MN发送给源MN。
需要说明的是，本申请中对于源MN向目标节点发送数据前转信息的具体方式不作限定，可以根据实际情况进行选取。
可选地，数据前转信息为用于源MN和目标MN之间数据发送的第一数据前转信息，目标节点为目标MN，源MN向目标MN发送第一数据前转信息。
可选地，数据前转信息为用于源MN和目标辅节点SN之间数据发送的第二数据前转信息，目标节点为目标SN，源MN向目标SN直接发送第二数据前转信息，或源MN向目标MN发送第二数据前转信息，目标MN用于转发第二数据前转信息至目标SN。
下面针对触发事件条件切换为CHO和条件主辅小区添加CPA移动性过程，源MN向目标节点发送数据前转信息的过程进行举例说明。
对于下行数据，数据从源MN发送给目标SN或数据从源MN发送给目标MN。
对于上行数据，数据从目标SN发送给源MN或数据从目标MN发送给源MN。
步骤a：源MN(第一节点)将数据前转信息发送给目标节点(第二节点)。
其中，数据前转信息的发送方法包括以下至少一种：用于源MN和目标MN间数据发送的数据前转信息，源MN发送给目标MN、用于源MN和目标SN间数据发送的数据前转信息，源MN发送给目标SN、用于源MN和目标SN间数据发送的数据前转信息,源MN发送给目标MN。
其中，数据前转信息包括以下至少一项：
终端数据路径标识信息。其中，终端数据路径标识信息包括以下至少一项：下行发送路径标识信息。其中，下行发送路径标识信息包括以下至少一项：数据发送源地址、数据发送目标地址。上行发送路径标识。其中，上行发送路径标识信息包括以下至少一项：数据发送源地址、数据发送目标地址。
承载标识。其中，该承载标识包括以下至少一项：会话标识(如，session ID)、数据流标识(如，QoS flow ID)、业务标识(如，临时移动组标识(Temporary Mobile Group Identity，简称TMGI))、 发送路径标识(如，MCG发送路径或SCG发送路径)、逻辑信道标识(如，Logical channel ID)。
承载类型。其中，该承载标识包括以下至少一项：主小区组承载(Master Cell Group bearer)，可选地，承载类型可以为辅小区组承载(Secondary Cell Group bearer)，承载类型可以为分裂承载(Split bearer)。
下行数据发送状态信息。其中，该信息包括以下至少一项：发送数据对应的编号(其中，该编号包括以下至少一项：PDCP SN；PDCP HFN(Hyper Frame Number，超帧号)；PDCP COUNT。)。其中，该“发送数据对应的编号”包括以下至少一项：首个发送数据编号。首个发送数据编号对应的前1个编号(例如：首个发送数据对应编号为N，则该编号为(N-1))、首个发送数据编号对应的后1个编号(例如：首个发送数据对应编号为N，则该编号为(N+1))每1个发送数据对应的编号(例如：通过bitmap标识(每1个bit标记1个编号)的发送数据编号；丢弃数据对应的编号。其中，该“丢弃数据对应的编号”包括以下任意一项：丢弃数据编号的下边界值(例如：如果数据编号大于或等于该下边界值，则该数据丢弃)，丢弃数据编号的上边界值(例如：如果数据编号小于或等于该上边界值，则该数据丢弃)，丢弃数据编号的下边界值和丢弃数据编号的上边界值(例如：例如：如果数据编号大于或等于该下边界值，且小于或等于该上边界值，则该数据丢弃)。
上行数据发送状态信息。其中，该信息包括以下至少一项：发送数据对应的编号(同上)、丢弃数据对应的编号(同上)，此处不再赘述。
步骤b：当用于源MN和目标SN间数据发送的数据前转信息，源MN发送给目标MN时，目标MN将用于源MN和目标SN间数据发送的数据前转信息发送给目标SN。
下面针对触发事件条件为条件切换CHO和条件主辅小区变更CPC移动性过程，源MN向目标节点发送数据前转信息的过程进行举例说明。
对于下行数据，数据为从源MN发送给目标SN或数据为从源MN发送给目标MN或数据为从源SN发送给目标SN或数据为从源SN发送给源MN，再从源MN发送给目标SN。
对于上行数据，数据为从目标SN发送给源MN或数据为从目标MN发送给源MN或数据为从目标SN发送给源SN或数据为从目标SN发送给源MN，再从源MN发送给源SN。
需要说明的是，本申请中对于数据前转信息的介绍可参见上述实施例中相关内容的记载，此处不再赘述。本申请中对于数据前转信息的设置不作限定，可以根据实际情况进行选取。
下面对MN的数据前转方法进行解释说明。
步骤a：源MN(第一节点)将数据前转信息发送给目标节点(第二节点)。
步骤b：当用于源MN和目标SN间数据发送的数据前转信息，源MN发送给目标MN时，目标MN将用于源MN和目标SN间数据发送的数据前转信息发送给目标SN。
下面对SN的数据前转方法进行解释说明。
步骤a：源SN将用于源SN和目标SN间数据发送的数据前转信息发送给源MN。
步骤b：根据步骤a，源MN将用于源SN和目标SN间数据发送的数据前转信息发送给目标SN。
在本申请实施例中，设定触发事件为基于条件触发的移动性过程，当第一节点为源主节点MN，第二节点为目标节点时，通过源MN向目标节点发送数据前转信息，通过网络节点间的协商，可以在网络侧对预配置的小区或小区组配置进行更新时，通过数据转发和路径转换等功能，实现数据的快速传输，而且能够在多个小区组同时变更时，进行数据转发和路径转换。
请参见图6，图6是本申请实施例提供的一种数据前转信息的传输方法的流程示意图。该方法由第一节点执行，如图6所示，该方法可以包括但不限于如下步骤：
S61，基于条件触发的移动性过程包括条件切换CHO和条件主辅小区变更CPC，第一节点为源SN，第二节点为目标SN。
需要说明的是，当第一节点为源SN，第二节点为目标SN时，源SN向目标SN发送第三数据前转信息适用于条件切换CHO和条件主辅小区变更CPC移动性过程。
S62，源SN向目标SN发送用于源SN和目标SN之间数据发送的第三数据前转信息或者源SN向源MN发送第三数据前转信息，源MN用于转发第三数据前转信息至目标SN。
需要说明的是，本申请中对于数据前转信息的介绍可参见上述实施例中相关内容的记载，此处不再赘述。本申请中对于数据前转信息的设置不作限定，可以根据实际情况进行选取。
需要说明的是，本申请中对于源MN向目标节点发送数据前转信息的具体方式不作限定，可以根据实际情况进行选取。
下面对源MN向目标SN发送第三数据前转信息的过程进行解释说明。
可选地，对于下行数据，数据从源MN发送给目标SN或者数据从源MN发送给目标MN或者数据从源SN发送给目标SN或者数据从源SN发送给源MN，再从源MN发送给目标SN。
可选地，对于上行数据，数据从目标SN发送给源MN或者数据从目标MN发送给源MN或者数据从目标SN发送给源SN或者数据从目标SN发送给源MN，再从源MN发送给源SN。
需要说明的是，本申请中对于源MN向目标SN发送第三数据前转信息的具体方式不作限定，可以根据实际情况进行选取。
可选地，源SN向目标SN发送用于源SN和目标SN之间数据发送的第三数据前转信息。
可选地，源SN向源MN发送第三数据前转信息，源MN用于转发第三数据前转信息至目标SN。
在本申请实施例中，基于条件触发的移动性过程包括条件切换CHO和条件主辅小区变更CPC，第一节点为源SN，第二节点为目标SN，可以通过源SN向目标SN发送用于源SN和目标SN之间数据发送的第三数据前转信息或者源SN向源MN发送第三数据前转信息，源MN用于转发第三数据前转信息至目标SN，可以实现数据的快速传输。
请参见图7，图7是本申请实施例提供的一种数据前转信息的传输方法的流程示意图。该方法由第一节点执行，如图7所示，该方法可以包括但不限于如下步骤：
S71，设定触发条件为一个小区组选择性激活，第二节点为目标节点。
需要说明的是，触发条件为一个小区组选择性激活时，可以为辅小区组SCG选择性激活，也可以为主小区组MCG选择性激活。
可选地，当设定触发条件为辅小区组SCG选择性激活时，此时目标节点为目标SN；可选地，当设定触发条件为主小区组MCG选择性激活时，此时目标节点为目标MN。
S72，第一节点向目标节点发送用于第一节点和目标节点之间数据发送的第四数据前转信息。
需要说明的是，本申请中对于第一节点的设置不作限定，可以根据实际情况进行选取。
可选地，第一节点可以为源MN；可选地，第一节点可以为源SN；可选地，第一节点可以为锚点基站；可选地，第一节点可以为锚点MN；可选地，第一节点可以为锚点SN。
在本申请实施例中，当触发条件为SCG小区组选择性激活时，可选地，对于下行数据，数据从源 MN或源SN或锚点基站或锚点MN或锚点SN发送给目标SN。可选地，对于上行数据，数据从目标SN发送给源MN或源SN或锚点基站或锚点MN或锚点SN。
在本申请实施例中，当触发条件为MCG小区组选择性激活时，可选地，对于下行数据，数据从源MN或源SN或锚点基站或锚点MN或锚点SN发送给目标MN。可选地，对于上行数据，数据从目标MN发送给源MN或源SN或锚点基站或锚点MN或锚点SN。
需要说明的是，本申请中对于第一节点向目标节点发送用于第一节点和目标节点之间数据发送的第四数据前转信息的具体方式不作限定，可以根据实际情况进行选取。
可选地，当第一节点为源节点时，即第一节点为源MN或源SN时，源节点可以向第三节点发送第四数据前转信息，第三节点用于转发第四数据前转信息至目标节点。
可选地，当第一节点为源MN或源SN或锚点基站或锚点MN或锚点SN时，第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)将第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)与目标SN间数据发送的数据前转信息(第四数据前转信息)发送给目标SN。
作为一种可能实现的方式，当源节点为源MN时，源MN向第三节点发送第四数据前转信息，第三节点为锚点基站或者锚点MN中的一种。
举例而言，当源节点为源MN时，源MN将源MN与目标SN间数据发送的数据前转信息(第四数据前转信息)发送给第三节点(锚点基站或锚点MN)。第三节点(锚点基站或锚点MN)将源MN与目标SN间数据发送的数据前转信息(第四数据前转信息)发送给目标SN。
作为一种可能实现的方式，当源节点为源SN时，源SN向第三节点发送第四数据前转信息，第三节点为源MN、锚点基站、锚点MN或者锚点SN中的一种。
举例而言，当源节点为源SN时，源SN将源SN与目标SN间数据发送的数据前转信息(第四数据前转信息)发送给第三节点(源MN或锚点基站或锚点MN或锚点SN)，第三节点(源MN或锚点基站或锚点MN或锚点SN)将第一节点源SN与目标SN间数据发送的数据前转信息(第四数据前转信息)发送给目标SN。
在本申请实施例中，设定触发条件为一个小区组选择性激活，第二节点为目标节点，第一节点可以向目标节点发送用于第一节点和目标节点之间数据发送的第四数据前转信息，可以实现数据的快速传输。
下面以触发条件为SCG小区组选择性激活进行举例说明。
对于下行数据，数据为从第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)发送给目标SN(第二节点)。
对于上行数据，数据为从目标SN(第二节点)发送给第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)。
第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)将第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)与目标SN间数据发送的数据前转信息发送给目标SN(第二节点)。
第一节点(源SN)将第一节点(源SN)与目标SN间数据发送的数据前转信息发送给第三节点(源MN或锚点基站或锚点MN或锚点SN)，第三节点(源MN或锚点基站或锚点MN或锚点SN)将源SN与目标SN间数据发送的数据前转信息发送给目标SN(第二节点)。
第一节点(源MN)将源MN与目标SN间数据发送的数据前转信息发送给第三节点(锚点基站或锚点MN)，第三节点(锚点基站或锚点MN)将源MN与目标SN间数据发送的数据前转信息发 送给目标SN(第二节点)。
下面以触发条件为MCG小区组选择性激活进行举例说明。
对于下行数据，数据为从第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)发送给目标MN(第二节点)。
对于上行数据，数据为从第二节点目标MN发送给源MN或源SN或锚点基站或锚点MN或锚点SN(第二节点)。
第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)将第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)与目标MN间数据发送的数据前转信息发送给目标SN(第二节点)。
第一节点源SN将源SN与目标MN间数据发送的数据前转信息发送给第三节点(源MN或锚点基站或锚点MN或锚点SN)，第三节点(源MN或锚点基站或锚点MN或锚点SN)将源SN与目标MN间数据发送的数据前转信息发送给目标MN(第二节点)。
第一节点源MN将源MN与目标MN间数据发送的数据前转信息发送给第三节点(锚点基站或锚点MN)，第三节点(锚点基站或锚点MN)将源MN与目标MN间数据发送的数据前转信息发送给目标MN(第二节点)。
请参见图8，图8是本申请实施例提供的一种数据前转信息的传输方法的流程示意图。该方法由第一节点执行，如图8所示，该方法可以包括但不限于如下步骤：
S81，设定触发条件为同时的MCG和SCG选择性激活，第二节点包括目标SN和目标MN。
需要说明的是，当设定触发条件为同时的MCG和SCG选择性激活时，此时第二节点包括目标SN和目标MN。
S82，第一节点向目标SN发送用于第一节点和目标SN之间数据发送的第五数据前转信息。
可选地，第一节点为源MN、源SN、锚点基站、锚点MN或者锚点SN中的一种。
可选地，第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)将第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)与目标SN间数据发送的数据前转信息(第五数据前转信息)发送给目标SN。
S83，第一节点向目标MN发送用于第一节点和目标MN之间数据发送的第五数据前转信息。
可选地，第一节点为源MN、源SN、锚点基站、锚点MN或者锚点SN中的一种。
可选地，第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)将第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)与目标MN间数据发送的数据前转信息(第五数据前转信息)发送给目标MN。
可选地，当第一节点为源节点时，针对目标SN和目标MN中的任一目标节点，源节点向第三节点发送第四数据前转信息，第三节点用于转发第四数据前转信息至目标节点。
在本申请实施例中，设定触发条件为同时的MCG和SCG选择性激活，第二节点包括目标SN和目标MN，第一节点向目标SN发送用于第一节点和目标SN之间数据发送的第五数据前转信息，第一节点向目标MN发送用于第一节点和目标MN之间数据发送的第五数据前转信息，可以实现数据的快速传输。
请参见图9，图9是本申请实施例提供的一种数据前转信息的传输方法的流程示意图。该方法由第二节点执行，如图9所示，该方法可以包括但不限于如下步骤：
S91，接收第一节点根据设定触发事件发送的数据前转信息。
需要说明的是，本申请中对于触发事件的设置不作限定，可以根据实际情况进行选取。
可选地，可以设定触发事件为辅小区组(Secondary Cell Group，简称SCG)选择性激活；可以设定触发事件为主小区组(Master Cell Group，简称MCG)选择性激活；可以设定触发事件为同时的MCG和SCG选择性激活；可以设定触发事件为同时的MCG和SCG基于条件触发的移动性过程。
进一步地，网络侧可以给终端设备提供候选小区或小区组配置。
可选地，对于候选小区的小区类型包括以下至少一种，例如：PCell、PSCel、SpCell、SCell、SpCell、MCG SCell、SCG SCell等。其中，对于1个特定候选小区，该候选小区的潜在小区类型可以为多种。
可选地，对于候选小区，可以基于网络侧指示或协议约定获取候选小区的小区类型。
可选地，对于候选小区组包括以下至少一种，例如：MCG、SCG等。其中，对于1个特定候选小区组，该候选小区组的潜在小区组类型可以为多种。
可选地地，对于候选小区组，可以基于网络侧指示或协议约定获取候选小区组的小区组类型。
进一步地，网络侧可以通过网络节点协商用户面数据，即数据无线承载DRB的发送路径。
需要说明的是，本申请中对于根据设定触发事件，接收第一节点根据设定触发事件发送的数据前转信息的具体方式不作限定，可以根据实际情况进行选取。
可选地，第二节点可以根据触发事件，直接接收第一节点根据设定触发事件发送的数据前转信息；可选地，第二节点可以接收第一节点经由第三节点发送的所述数据前转信息。
需要说明的是，本申请对于第一节点的设置不作限定，可以根据实际情况进行选取。
可选地，第一节点为源MN、源SN、锚点基站、锚点MN或者锚点SN中的一种。
需要说明的是，本申请对于第二节点的设置不作限定，可以根据实际情况进行选取。
可选地，第二节点可以为源MN、源SN等。
需要说明的是，在获取到触发事件后，可以对触发事件进行进一步的约定，触发事件还包括以下触发条件的任意一项，即需要在以下条件任意一项满足时候触发。
可选地，第一节点接收到节点B发送的“小区组选择性激活候选确认消息”后，则满足触发条件。
例如：第一节点发送“小区组选择性激活候选请求消息”给第二节点，第二节点接受该请求后发送“小区组选择性激活候选确认消息”给第一节点。
可选地，在第一节点发送“激活候选小区或小区组”配置命令”前或后或同时，则满足触发条件。其中，“激活“候选小区或小区组”配置命令”为发送给终端的命令。
可选地，第一节点接收到第二节点的“候选小区或小区组”配置激活确认消息后，则满足触发条件。
例如：第一节点发送“激活“候选小区或小区组)”配置命令”给终端。又例如：终端根据触发事件自行激活“候选小区或小区组”配置，第二节点在该“候选小区或小区组”配置激活后，发送“候选小区或小区组”配置激活确认消息给第一节点。
可选地，可以设定数据前转信息为终端设备的数据路径标识信息、可以设定数据前转信息为数据承载标识、可以设定数据前转信息为数据承载类型、可以设定数据前转信息为数据发送状态信息。
在本申请实施例中，在满足触发事件后，第一节点可以根据设定触发事件，向第二节点发送数据前转信息，第二节点可以接收第一节点根据设定触发事件发送的数据前转信息。
本申请实施例中，第二节点可以接收第一节点根据设定触发事件发送的数据前转信息。通过网络节点间的协商，可以在网络侧对预配置的小区或小区组配置进行更新时，通过数据转发和路径转换等功能， 实现数据的快速传输，而且能够在多个小区组同时变更时，进行数据转发和路径转换。
请参见图10，图10是本申请实施例提供的一种数据前转信息的传输方法的流程示意图。该方法由第二节点执行，如图10所示，该方法可以包括但不限于如下步骤：
S101，接收第一节点经由第三节点发送的数据前转信息。
进一步地，网络侧可以给终端提供候选小区或小区组配置。
可选地，对于候选小区的小区类型包括以下至少一种，例如：PCell、PSCel、SpCell、SCell、SpCell、MCG SCell、SCG SCell等。其中，对于1个特定候选小区，该候选小区的潜在小区类型可以为多种。
可选地，对于候选小区，可以基于网络侧指示或协议约定获取候选小区的小区类型。
可选地，对于候选小区组包括以下至少一种，例如：MCG、SCG等。其中，对于1个特定候选小区组，该候选小区组的潜在小区组类型可以为多种。
可选地地，对于候选小区组，可以基于网络侧指示或协议约定获取候选小区组的小区组类型。
进一步地，网络侧可以通过网络节点协商用户面数据，即数据无线承载DRB的发送路径。
进一步地，第一节点可以经由第三节点向第二节点发送数据前转信息，第二节点可以接收第一节点经由第三节点发送的数据前转信息。
需要说明的是，本申请对于第一节点的设置不作限定，可以根据实际情况进行选取。
可选地，第一节点为源MN、源SN、锚点基站、锚点MN或者锚点SN中的一种。
需要说明的是，本申请对于第二节点的设置不作限定，可以根据实际情况进行选取。
可选地，第二节点可以为源MN、源SN等。
需要说明的是，本申请对于第三节点的设置不作限定，可以根据实际情况进行选取。
可选地，第三节点为源MN、锚点基站、锚点MN或者锚点SN中的一种。
可选地，第一节点接收到节点B发送的“小区组选择性激活候选确认消息”后，则满足触发条件。
例如：第一节点发送“小区组选择性激活候选请求消息”给第二节点，第二节点接受该请求后发送“小区组选择性激活候选确认消息”给第一节点。
可选地，在第一节点发送“激活候选小区或小区组”配置命令”前或后或同时，则满足触发条件。其中，“激活“候选小区或小区组”配置命令”为发送给终端的命令。
可选地，第一节点接收到第二节点的“候选小区或小区组”配置激活确认消息后，则满足触发条件。
例如：第一节点发送“激活“候选小区或小区组)”配置命令”给终端。又例如：终端根据触发事件自行激活“候选小区或小区组”配置，第二节点在该“候选小区或小区组”配置激活后，发送“候选小区或小区组”配置激活确认消息给第一节点。
可选地，可以设定数据前转信息为终端设备的数据路径标识信息、可以设定数据前转信息为数据承载标识、可以设定数据前转信息为数据承载类型、可以设定数据前转信息为数据发送状态信息。
在本申请实施例中，在满足触发事件后，第一节点可以经由第三节点向第二节点发送数据前转信息，第二节点可以接收第一节点经由第三节点发送的数据前转信息。
可选地，数据前转信息可以为终端设备的数据路径标识信息、数据承载标识、数据承载类型、数据发送状态信息中的至少一种。
可选地，终端设备的数据路径标识信息，可以为下行发送路径标识信息中包括的第一数据发送源地址和第一数据发送目标地址中的至少一个或上行发送路径标识信息中包括的第二数据发送源地址和 第二数据发送目标地址中的至少一个。
可选地，数据承载标识，可以为会话标识、数据流标识、业务标识、发送路径标识、逻辑信道标识中的至少一种。
举例而言，如图4所示，数据无线承载(Data Radio Bearer，简称DRB)可以根据数据发送的小区组分为不同的承载类型。
可选地，承载类型可以为主小区组承载(Master Cell Group bearer)，可选地，承载类型可以为辅小区组承载(Secondary Cell Group bearer)，承载类型可以为分裂承载(Split bearer)。
可选地，数据发送状态信息，包括下行数据发送状态信息包括第一发送数据对应的编号和第一丢弃数据对应的编号中的至少一种以及上行数据发送状态信息包括第二发送数据对应的编号和第二丢弃数据对应的编号中的至少一种。
可选地，第一发送数据对应的编号和第二发送数据对应的编号均包括以下情况中的至少一项：首个发送数据编号；首个发送数据编号对应的前N个编号，N为正整数；首个发送数据编号对应的后M个编号，M为正整数；每1个发送数据对应的编号；第一丢弃数据对应的编号和第二丢弃数据对应的编号均包括以下情况中的至少一项：丢弃数据编号的下边界值；丢弃数据编号的上边界值；丢弃数据编号的下边界值和上边界值。
在本申请实施例中，第二节点可以接收第一节点经由第三节点发送的数据前转信息。通过网络节点间的协商，可以在网络侧对预配置的小区或小区组配置进行更新时，通过数据转发和路径转换等功能，实现数据的快速传输，而且能够在多个小区组同时变更时，进行数据转发和路径转换。
请参见图11，图11是本申请实施例提供的一种数据前转信息的传输方法的流程示意图。该方法由第二节点执行，如图11所示，该方法可以包括但不限于如下步骤：
S111，设定触发事件为基于条件触发的移动性过程，第一节点为源主节点MN，第二节点为目标节点。
需要说明的是，基于条件触发的移动性过程包括：条件切换(Conditional Handover，简称CHO)、条件主辅小区添加(Conditional PSCell Addition，简称CPA)、条件主辅小区变更(Conditional PSCell Change，简称CPC)。
S112，接收源MN向目标节点发送的数据前转信息。
需要说明的是，本申请中对于数据前转信息的介绍可参见上述实施例中相关内容的记载，此处不再赘述。本申请中对于数据前转信息的设置不作限定，可以根据实际情况进行选取。
需要说明的是，当第一节点为源主节点MN，第二节点为目标节点时，源MN向目标节点发送数据前转信息适用于两种不同的移动性过程，即条件切换CHO和条件主辅小区添加CPA移动性过程或条件切换CHO和条件主辅小区变更CPC移动性过程。
下面对接收源MN发送的数据前转信息的过程进行解释说明。
可选地，对于下行数据，数据从源MN发送给目标SN或者数据从源MN发送给目标MN
可选地，对于上行数据，数据从目标SN发送给源MN或者数据从目标MN发送给源MN。
需要说明的是，本申请中对于源MN向目标节点发送数据前转信息的具体方式不作限定，可以根据实际情况进行选取。
可选地，数据前转信息为用于源MN和目标MN之间数据发送的第一数据前转信息，目标节点为 目标MN，源MN向目标MN发送第一数据前转信息。
可选地，数据前转信息为用于源MN和目标辅节点SN之间数据发送的第二数据前转信息，目标节点为目标SN，源MN向目标SN直接发送第二数据前转信息，或源MN向目标MN发送第二数据前转信息，目标MN用于转发第二数据前转信息至目标SN。
进一步地，第一节点为源主节点MN，第二节点为目标节点，在第一节点向第二节点发送数据前转信息后，可以接收源MN发送的数据前转信息。
下面针对触发事件条件切换为CHO和条件主辅小区添加CPA移动性过程，源MN向目标节点发送数据前转信息的过程进行举例说明。
对于下行数据，数据从源MN发送给目标SN或数据从源MN发送给目标MN。
对于上行数据，数据从目标SN发送给源MN或数据从目标MN发送给源MN。
步骤a：源MN(第一节点)将数据前转信息发送给目标节点(第二节点)。
其中，数据前转信息的发送方法包括以下至少一种：用于源MN和目标MN间数据发送的数据前转信息，源MN发送给目标MN、用于源MN和目标SN间数据发送的数据前转信息，源MN发送给目标SN、用于源MN和目标SN间数据发送的数据前转信息,源MN发送给目标MN。
其中，数据前转信息包括以下至少一项：
终端数据路径标识信息。其中，终端数据路径标识信息包括以下至少一项：下行发送路径标识信息。其中，下行发送路径标识信息包括以下至少一项：数据发送源地址、数据发送目标地址。上行发送路径标识。其中，上行发送路径标识信息包括以下至少一项：数据发送源地址、数据发送目标地址。
承载标识。其中，该承载标识包括以下至少一项：会话标识(如，session ID)、数据流标识(如，QoS flow ID)、业务标识(如，临时移动组标识(Temporary Mobile Group Identity，简称TMGI))、发送路径标识(如，MCG发送路径或SCG发送路径)、逻辑信道标识(如，logical channel ID)。
承载类型。其中，该承载标识包括以下至少一项：主小区组承载(Master Cell Group bearer)，可选地，承载类型可以为辅小区组承载(Secondary Cell Group bearer)，承载类型可以为分裂承载(Split bearer)。
下行数据发送状态信息。其中，该信息包括以下至少一项：发送数据对应的编号(其中，该编号包括以下至少一项：PDCP SN；PDCP HFN(Hyper Frame Number，超帧号)；PDCP COUNT。)。其中，该“发送数据对应的编号”包括以下至少一项：首个发送数据编号。首个发送数据编号对应的前1个编号(例如：首个发送数据对应编号为N，则该编号为(N-1))、首个发送数据编号对应的后1个编号(例如：首个发送数据对应编号为N，则该编号为(N+1))每1个发送数据对应的编号(例如：通过bitmap标识(每1个bit标记1个编号)的发送数据编号；丢弃数据对应的编号。其中，该“丢弃数据对应的编号”包括以下任意一项：丢弃数据编号的下边界值(例如：如果数据编号大于或等于该下边界值，则该数据丢弃)，丢弃数据编号的上边界值(例如：如果数据编号小于或等于该上边界值，则该数据丢弃)，丢弃数据编号的下边界值和丢弃数据编号的上边界值(例如：例如：如果数据编号大于或等于该下边界值，且小于或等于该上边界值，则该数据丢弃)。
上行数据发送状态信息。其中，该信息包括以下至少一项：发送数据对应的编号(同上)、丢弃数据对应的编号(同上)，此处不再赘述。
步骤b：当用于源MN和目标SN间数据发送的数据前转信息，源MN发送给目标MN时，目标 MN将用于源MN和目标SN间数据发送的数据前转信息发送给目标SN。
下面针对触发事件条件为条件切换CHO和条件主辅小区变更CPC移动性过程，源MN向目标节点发送数据前转信息的过程进行举例说明。
对于下行数据，数据为从源MN发送给目标SN或数据为从源MN发送给目标MN或数据为从源SN发送给目标SN或数据为从源SN发送给源MN，再从源MN发送给目标SN。
对于上行数据，数据为从目标SN发送给源MN或数据为从目标MN发送给源MN或数据为从目标SN发送给源SN或数据为从目标SN发送给源MN，再从源MN发送给源SN。
需要说明的是，本申请中对于数据前转信息的介绍可参见上述实施例中相关内容的记载，此处不再赘述。本申请中对于数据前转信息的设置不作限定，可以根据实际情况进行选取。
下面对MN的数据前转方法进行解释说明。
步骤a：源MN(第一节点)将数据前转信息发送给目标节点(第二节点)。
步骤b：当用于源MN和目标SN间数据发送的数据前转信息，源MN发送给目标MN时，目标MN将用于源MN和目标SN间数据发送的数据前转信息发送给目标SN。
下面对SN的数据前转方法进行解释说明。
步骤a：源SN将用于源SN和目标SN间数据发送的数据前转信息发送给源MN。
步骤b：根据步骤a，源MN将用于源SN和目标SN间数据发送的数据前转信息发送给目标SN。
在本申请实施例中，设定触发事件为基于条件触发的移动性过程，当第一节点为源主节点MN，第二节点为目标节点时，第二节点通过源MN向目标节点发送的数据前转信息，通过网络节点间的协商，可以在网络侧对预配置的小区或小区组配置进行更新时，通过数据转发和路径转换等功能，实现数据的快速传输，而且能够在多个小区组同时变更时，进行数据转发和路径转换。
请参见图12，图12是本申请实施例提供的一种数据前转信息的传输方法的流程示意图。该方法由第二点执行，如图12所示，该方法可以包括但不限于如下步骤：
S121，基于条件触发的移动性过程包括条件切换CHO和条件主辅小区变更CPC，第一节点为源SN，第二节点为目标SN。
需要说明的是，当第一节点为源SN，第二节点为目标SN时，源SN向目标SN发送第三数据前转信息适用于条件切换CHO和条件主辅小区变更CPC移动性过程。
S122，接收源SN向目标SN发送用于源SN和目标SN之间数据发送的第三数据前转信息或者接收源SN向源MN发送的第三数据前转信息。
其中，第三数据前转信息由源SN发送给源MN。
需要说明的是，本申请中对于数据前转信息的介绍可参见上述实施例中相关内容的记载，此处不再赘述。本申请中对于数据前转信息的设置不作限定，可以根据实际情况进行选取。
需要说明的是，本申请中对于源MN向目标节点发送数据前转信息的具体方式不作限定，可以根据实际情况进行选取。
下面对接收源MN向目标SN发送的第三数据前转信息的过程进行解释说明。
可选地，对于下行数据，数据从源MN发送给目标SN或者数据从源MN发送给目标MN或者数据从源SN发送给目标SN或者数据从源SN发送给源MN，再从源MN发送给目标SN。
可选地，对于上行数据，数据从目标SN发送给源MN或者数据从目标MN发送给源MN或者数 据从目标SN发送给源SN或者数据从目标SN发送给源MN，再从源MN发送给源SN。
需要说明的是，本申请中对于源MN向目标SN发送第三数据前转信息的具体方式不作限定，可以根据实际情况进行选取。
可选地，源SN向目标SN发送用于源SN和目标SN之间数据发送的第三数据前转信息。
可选地，源SN向源MN发送第三数据前转信息，源MN用于转发第三数据前转信息至目标SN。
进一步地，第二节点可以接收源MN发送的数据前转信息。
在本申请实施例中，基于条件触发的移动性过程包括条件切换CHO和条件主辅小区变更CPC，第一节点为源SN，第二节点为目标SN，第二节点可以接收源SN向目标SN发送用于源SN和目标SN之间数据发送的第三数据前转信息或者源SN向源MN发送的第三数据前转信息，可以实现数据的快速传输。
请参见图13，图13是本申请实施例提供的一种数据前转信息的传输方法的流程示意图。该方法由第二节点执行，如图13所示，该方法可以包括但不限于如下步骤：
S131，设定触发条件为一个小区组选择性激活，第二节点为目标节点。
需要说明的是，触发条件为一个小区组选择性激活时，可以为辅小区组SCG选择性激活，也可以为主小区组MCG选择性激活。
可选地，当设定触发条件为辅小区组SCG选择性激活时，此时目标节点为目标SN；可选地，当设定触发条件为主小区组MCG选择性激活时，此时目标节点为目标MN。
S132，接收第一节点向目标节点发送用于第一节点和目标节点之间数据发送的第四数据前转信息。
需要说明的是，本申请中对于第一节点的设置不作限定，可以根据实际情况进行选取。
可选地，第一节点可以为源MN；可选地，第一节点可以为源SN；可选地，第一节点可以为锚点基站；可选地，第一节点可以为锚点MN；可选地，第一节点可以为锚点SN。
在本申请实施例中，当触发条件为SCG小区组选择性激活时，可选地，对于下行数据，数据从源MN或源SN或锚点基站或锚点MN或锚点SN发送给目标SN。可选地，对于上行数据，数据从目标SN发送给源MN或源SN或锚点基站或锚点MN或锚点SN。
在本申请实施例中，当触发条件为MCG小区组选择性激活时，可选地，对于下行数据，数据从源MN或源SN或锚点基站或锚点MN或锚点SN发送给目标MN。可选地，对于上行数据，数据从目标MN发送给源MN或源SN或锚点基站或锚点MN或锚点SN。
需要说明的是，本申请中对于第一节点向目标节点发送用于第一节点和目标节点之间数据发送的第四数据前转信息的具体方式不作限定，可以根据实际情况进行选取。
可选地，当第一节点为源节点时，即第一节点为源MN或源SN时，源节点可以向第三节点发送第四数据前转信息，第三节点用于转发第四数据前转信息至目标节点。
可选地，当第一节点为源MN或源SN或锚点基站或锚点MN或锚点SN时，第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)将第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)与目标SN间数据发送的数据前转信息(第四数据前转信息)发送给目标SN。
作为一种可能实现的方式，当源节点为源MN时，源MN向第三节点发送第四数据前转信息，第三节点为锚点基站或者锚点MN中的一种。
举例而言，当源节点为源MN时，源MN将源MN与目标SN间数据发送的数据前转信息(第四数据前转信息)发送给第三节点(锚点基站或锚点MN)。第三节点(锚点基站或锚点MN)将源MN 与目标SN间数据发送的数据前转信息(第四数据前转信息)发送给目标SN。
作为一种可能实现的方式，当源节点为源SN时，源SN向第三节点发送第四数据前转信息，第三节点为源MN、锚点基站、锚点MN或者锚点SN中的一种。
举例而言，当源节点为源SN时，源SN将源SN与目标SN间数据发送的数据前转信息(第四数据前转信息)发送给第三节点(源MN或锚点基站或锚点MN或锚点SN)，第三节点(源MN或锚点基站或锚点MN或锚点SN)将第一节点源SN与目标SN间数据发送的数据前转信息(第四数据前转信息)发送给目标SN。
进一步地，第二节点可以接收第一节点发送的用于第一节点和目标节点之间数据发送的第四数据前转信息。
在本申请实施例中，设定触发条件为一个小区组选择性激活，第二节点为目标节点，第二节点可以接收第一节点向目标节点发送用于第一节点和目标节点之间数据发送的第四数据前转信息，可以实现数据的快速传输。
下面以触发条件为SCG小区组选择性激活进行举例说明。
对于下行数据，数据为从第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)发送给目标SN(第二节点)。
对于上行数据，数据为从目标SN(第二节点)发送给第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)。
第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)将第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)与目标SN间数据发送的数据前转信息发送给目标SN(第二节点)。
第一节点(源SN)将第一节点(源SN)与目标SN间数据发送的数据前转信息发送给第三节点(源MN或锚点基站或锚点MN或锚点SN)，第三节点(源MN或锚点基站或锚点MN或锚点SN)将源SN与目标SN间数据发送的数据前转信息发送给目标SN(第二节点)。
第一节点(源MN)将源MN与目标SN间数据发送的数据前转信息发送给第三节点(锚点基站或锚点MN)，第三节点(锚点基站或锚点MN)将源MN与目标SN间数据发送的数据前转信息发送给目标SN(第二节点)。
下面以触发条件为MCG小区组选择性激活进行举例说明。
对于下行数据，数据为从第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)发送给目标MN(第二节点)。
对于上行数据，数据为从第二节点目标MN发送给源MN或源SN或锚点基站或锚点MN或锚点SN(第二节点)。
第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)将第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)与目标MN间数据发送的数据前转信息发送给目标SN(第二节点)。
第一节点源SN将源SN与目标MN间数据发送的数据前转信息发送给第三节点(源MN或锚点基站或锚点MN或锚点SN)，第三节点(源MN或锚点基站或锚点MN或锚点SN)将源SN与目标MN间数据发送的数据前转信息发送给目标MN(第二节点)。
第一节点源MN将源MN与目标MN间数据发送的数据前转信息发送给第三节点(锚点基站或锚点MN)，第三节点(锚点基站或锚点MN)将源MN与目标MN间数据发送的数据前转信息发送给 目标MN(第二节点)。
进一步地，第二节点可以接收第一节点发送的用于第一节点和目标节点之间数据发送的第四数据前转信息。
请参见图14，图14是本申请实施例提供的一种数据前转信息的传输方法的流程示意图。该方法由第二节点执行，如图14所示，该方法可以包括但不限于如下步骤：
S141，设定触发条件为同时的MCG和SCG选择性激活，第二节点包括目标SN和目标MN。
需要说明的是，当设定触发条件为同时的MCG和SCG选择性激活时，此时第二节点包括目标SN和目标MN。
S142，第二节点接收第一节点向目标SN发送用于第一节点和目标SN之间数据发送的第五数据前转信息。
可选地，第一节点为源MN、源SN、锚点基站、锚点MN或者锚点SN中的一种。
可选地，第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)将第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)与目标SN间数据发送的数据前转信息(第五数据前转信息)发送给目标SN。
S143，第二节点接收第一节点向目标MN发送用于第一节点和目标MN之间数据发送的第五数据前转信息。
可选地，第一节点为源MN、源SN、锚点基站、锚点MN或者锚点SN中的一种。
可选地，第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)将第一节点(源MN或源SN或锚点基站或锚点MN或锚点SN)与目标MN间数据发送的数据前转信息(第五数据前转信息)发送给目标MN。
可选地，当第一节点为源节点时，针对目标SN和目标MN中的任一目标节点，源节点向第三节点发送第四数据前转信息，第三节点用于转发第四数据前转信息至目标节点。
在本申请实施例中，设定触发条件为同时的MCG和SCG选择性激活，第二节点包括目标SN和目标MN，第二节点接收第一节点向目标SN发送用于第一节点和目标SN之间数据发送的第五数据前转信息，第二节点接收第一节点向目标MN发送用于第一节点和目标MN之间数据发送的第五数据前转信息，可以实现数据的快速传输。
上述本申请提供的实施例中，分别从网络设备、终端设备的角度对本申请实施例提供的方法进行了介绍。为了实现上述本申请实施例提供的方法中的各功能，网络设备和终端设备可以包括硬件结构、软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能可以以硬件结构、软件模块、或者硬件结构加软件模块的方式来执行。
请参见图15，为本申请实施例提供的一种通信装置150的结构示意图。图15所示的通信装置150可包括收发模块151和处理模块152。收发模块151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151可以实现发送功能和/或接收功能。
通信装置150可以是终端设备，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。
通信装置150为终端设备：
收发模块151，用于根据设定触发事件，向第二节点发送数据前转信息。
可选地，收发模块151，还用于根据所述设定触发事件，经由第三节点向所述第二节点发送所述数据前转信息。
可选地，所述设定触发事件包括以下事件中的任一种：辅小区组SCG选择性激活；主小区组MCG选择性激活；同时的MCG和SCG选择性激活；同时的MCG和SCG基于条件触发的移动性过程。
可选地，所述数据前转信息，包括以下信息中的至少一种：终端设备的数据路径标识信息；数据承载标识；数据承载类型；数据发送状态信息。
可选地，所述终端设备的数据路径标识信息，包括以下路径标识信息中的至少一项：下行发送路径标识信息，其中，所述下行发送路径标识信息包括第一数据发送源地址和第一数据发送目标地址中的至少一个；上行发送路径标识信息，其中，所述上行发送路径标识信息包括第二数据发送源地址和第二数据发送目标地址中的至少一个。
可选地，所述数据承载标识，包括以下标识中的至少一项：会话标识；数据流标识；业务标识；发送路径标识；逻辑信道标识。
可选地，所述数据发送状态信息，包括以下状态信息中的至少一项下行数据发送状态信息，其中，所述下行数据发送状态信息包括第一发送数据对应的编号和第一丢弃数据对应的编号中的至少一种上行数据发送状态信息，其中，所述上行数据发送状态信息包括第二发送数据对应的编号和第二丢弃数据对应的编号中的至少一种。
可选地所述第一发送数据对应的编号和所述第二发送数据对应的编号均包括以下情况中的至少一项首个发送数据编号；首个发送数据编号对应的前N个编号，所述N为正整数；
首个发送数据编号对应的后M个编号，所述M为正整数；每1个发送数据对应的编号；所述第一丢弃数据对应的编号和所述第二丢弃数据对应的编号均包括以下情况中的至少一项：丢弃数据编号的下边界值；丢弃数据编号的上边界值；丢弃数据编号的下边界值和上边界值。
可选地，收发模块151，还用于所述设定触发事件为所述基于条件触发的移动性过程，所述第一节点为源主节点MN，所述第二节点为目标节点；所述根据设定触发事件，向第二节点发送数据前转信息，包括：所述源MN向所述目标节点发送所述数据前转信息。
可选地，收发模块151，还用于在所述目标节点为目标主节点MN的情况下，所述数据前转信息为用于所述源MN向所述目标MN发送的第一数据前转信息；在所述目标节点为目标辅节点SN的情况下，所述数据前转信息为用于所述源MN向所述目标SN直接发送的第二数据前转信息，或者为所述源MN经由所述目标MN发送至所述目标SN的第二数据前转信息。
可选地，收发模块151，还用于所述基于条件触发的移动性过程包括条件切换CHO和条件主辅小区变更CPC，所述第一节点为源SN，所述第二节点为目标SN；所述根据设定触发事件，向第二节点发送数据前转信息，包括：所述源SN向目标SN发送用于所述源SN和所述目标SN之间数据发送的第三数据前转信息；或者，所述源SN向源MN发送所述第三数据前转信息，所述源MN用于转发所述第三数据前转信息至所述目标SN。
可选地，收发模块151，还用于所述设定触发条件为一个小区组选择性激活，所述第二节点为目标节点；所述根据设定触发事件，向第二节点发送数据前转信息，包括：所述第一节点向所述目标节点发送用于所述第一节点和所述目标节点之间数据发送的第四数据前转信息；其中，所述第一节点为源MN、源SN、锚点基站、锚点MN或者锚点SN中的一种。
可选地，收发模块151，还用于所述第一节点为源节点，所述第一节点向所述目标节点发送所述第四数据前转信息的过程，包括：所述源节点向第三节点发送所述第四数据前转信息，所述第三节点用于转发所述第四数据前转信息至所述目标节点。
可选地，收发模块151，还用于所述源节点为所述源MN，所述源MN向所述第三节点发送所述第四数据前转信息，所述第三节点为锚点基站或者锚点MN中的一种；所述源节点为源SN，所述源SN向所述第三节点发送所述第四数据前转信息，所述第三节点为源MN、锚点基站、锚点MN或者锚点SN中的一种。
可选地，所述设定触发条件为SCG选择性激活，所述目标节点为目标SN；所述设定触发条件为MCG选择性激活，所述目标节点为目标MN。
可选地，收发模块151，还用于所述设定触发条件为同时的MCG和SCG选择性激活，所述第二节点包括目标SN和目标MN；所述根据设定触发事件，向第二节点发送数据前转信息，包括：所述第一节点向所述目标SN发送用于所述第一节点和所述目标SN之间数据发送的第五数据前转信息；所述第一节点向所述目标MN发送用于所述第一节点和所述目标MN之间数据发送的第五数据前转信息，其中，所述第一节点为源MN、源SN、锚点基站、锚点MN或者锚点SN中的一种。
可选地，收发模块151，还用于所述第一节点为源节点，所述方法还包括：针对所述目标SN和目标MN中的任一目标节点，所述第一节点向所述目标节点发送所述第五数据前转信息的过程，包括：所述源节点向第三节点发送所述第四数据前转信息，所述第三节点用于转发所述第四数据前转信息至所述目标节点。
本申请实施例中，根据设定触发事件，第一节点向第二节点发送数据前转信息，通过网络节点间的协商，可以在网络侧对预配置的小区或小区组配置进行更新时，通过数据转发和路径转换等功能，实现数据的快速传输，而且能够在多个小区组同时变更时，进行数据转发和路径转换。
通信装置150为终端设备：
收发模块151，用于接收第一节点根据设定触发事件发送的数据前转信息。
可选地，收发模块151，还用于接收所述第一节点经由第三节点发送的所述数据前转信息。
可选地，所述设定触发事件包括以下事件中的任一种：辅小区组SCG选择性激活；主小区组MCG选择性激活；同时的MCG和SCG选择性激活；同时的MCG和SCG基于条件触发的移动性过程。
可选地，所述数据前转信息，包括以下信息中的至少一种：终端设备的数据路径标识信息；数据承载标识；数据承载类型；数据发送状态信息。
可选地，所述终端设备的数据路径标识信息，包括以下路径标识信息中的至少一项：下行发送路径标识信息，其中，所述下行发送路径标识信息包括第一数据发送源地址和第一数据发送目标地址中的至少一个；上行发送路径标识信息，其中，所述上行发送路径标识信息包括第二数据发送源地址和第二数据发送目标地址中的至少一个。
可选地，所述数据承载标识，包括以下标识中的至少一项：会话标识；数据流标识；业务标识；发送路径标识；逻辑信道标识。
可选地，所述数据发送状态信息，包括以下状态信息中的至少一项下行数据发送状态信息，其中，所述下行数据发送状态信息包括第一发送数据对应的编号和第一丢弃数据对应的编号中的至少一种上行数据发送状态信息，其中，所述上行数据发送状态信息包括第二发送数据对应的编号和第二丢弃数 据对应的编号中的至少一种。
可选地所述第一发送数据对应的编号和所述第二发送数据对应的编号均包括以下情况中的至少一项首个发送数据编号；首个发送数据编号对应的前N个编号，所述N为正整数；
首个发送数据编号对应的后M个编号，所述M为正整数；每1个发送数据对应的编号；所述第一丢弃数据对应的编号和所述第二丢弃数据对应的编号均包括以下情况中的至少一项：丢弃数据编号的下边界值；丢弃数据编号的上边界值；丢弃数据编号的下边界值和上边界值。
可选地，收发模块151，还用于所述设定触发事件为所述基于条件触发的移动性过程，所述第一节点为源主节点MN，所述第二节点为目标节点；所述接收第一节点根据设定触发事件发送的数据前转信息，包括：接收所述源MN发送的所述数据前转信息。
可选地，收发模块151，还用于在所述目标节点为目标主节点MN的情况下，所述数据前转信息为用于所述源MN向所述目标MN发送的第一数据前转信息；接收所述源MN直接发送的所述第一数据前转信息；在所述目标节点为目标辅节点SN的情况下，所述数据前转信息为用于所述源MN向所述目标SN直接发送的第二数据前转信息，或者为所述源MN经由所述目标MN发送至所述目标SN的第二数据前转信息，接收所述源SN直接发送的所述第二数据前转信息，或者接收所述源MN经由所述目标MN发送至所述目标SN的第二数据前转信息。
可选地，收发模块151，还用于所述基于条件触发的移动性过程包括CHO和CPC，所述第一节点为源SN，所述第二节点为目标SN；所述接收第一节点根据设定触发事件发送的数据前转信息，包括：接收所述源SN发送的用于所述源SN和所述目标SN之间数据发送的第三数据前转信息；或者，接收源MN转发的所述第三数据前转信息，所述第三数据前转信息由所述源SN发送给所述源MN。
可选地，收发模块151，还用于所述设定触发条件为一个小区组选择性激活，所述第二节点为目标节点；所述接收第一节点根据设定触发事件发送的数据前转信息，包括：接收所述第一节点发送的用于所述第一节点和所述目标节点之间数据发送的第四数据前转信息；其中，所述第一节点为源MN、源SN、锚点基站、锚点MN或者锚点SN中的一种。
可选地，收发模块151，还用于所述第一节点为源节点，接收所述第一节点发送的所述第四数据前转信息的过程，包括：接收第三节点转发的所述第四数据前转信息，所述第四数据前转信息由所述源节点发送给所述第三节点。
可选地，所述源节点为所述源MN，所述第三节点为锚点基站或者锚点MN中的一种；所述源节点为源SN，所述第三节点为源MN、锚点基站、锚点MN或者锚点SN中的一种。
可选地，所述设定触发条件为SCG选择性激活，所述目标节点为目标SN；所述设定触发条件为MCG选择性激活，所述目标节点为目标MN。
可选地，收发模块151，还用于所述设定触发条件为同时的MCG和SCG选择性激活，所述第二节点包括目标SN和目标MN；所述接收第一节点根据设定触发事件发送的数据前转信息，包括：所述第二节点为所述目标SN，所述目标SN接收所述第一节点发送的用于所述第一节点和所述目标SN之间数据发送的第五数据前转信息；所述第二节点为所述目标MN，所述目标MN接收所述第一节点发送的用于所述第一节点和所述目标MN之间数据发送的第五数据前转信息，其中，所述第一节点为源MN、源SN、锚点基站、锚点MN或者锚点SN中的一种。
可选地，收发模块151，还用于所述第一节点为源节点，所述方法还包括：
针对所述目标SN和目标MN中的任一目标节点，接收所述第一节点发送的所述第五数据前转信息的过程，包括：
接收第三节点转发的所述第五数据前转信息，所述第五数据前转信息由所述源节点发送给所述第三节点。
本申请实施例中，第二节点接收第一节点根据设定触发事件发送的数据前转信息。通过网络节点间的协商，可以在网络侧对预配置的小区或小区组配置进行更新时，通过数据转发和路径转换等功能，实现数据的快速传输，而且能够在多个小区组同时变更时，进行数据转发和路径转换。
请参见图16，图16是本申请实施例提供的另一种通信装置160的结构示意图。通信装置160可以是终端设备，也可以是网络设备，也可以是支持终端设备实现上述方法的芯片、芯片系统、或处理器等，还可以是支持网络设备实现上述方法的芯片、芯片系统、或处理器等。该装置可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。
通信装置160可以包括一个或多个处理器161。处理器161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160中还可以包括一个或多个存储器162，其上可以存有计算机程序164，处理器161执行所述计算机程序164，以使得通信装置160执行上述方法实施例中描述的方法。可选的，所述存储器162中还可以存储有数据。通信装置160和存储器162可以单独设置，也可以集成在一起。
可选的，通信装置160还可以包括收发器165、天线166。收发器165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165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160中还可以包括一个或多个接口电路167。接口电路167用于接收代码指令并传输至处理器161。处理器161运行所述代码指令以使通信装置160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161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161可以存有计算机程序163，计算机程序163在处理器161上运行，可使得通信装置160执行上述方法实施例中描述的方法。计算机程序163可能固化在处理器161中，该种情况下，处理器161可能由硬件实现。
在一种实现方式中，通信装置160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。本申请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发送设备或者接收设备(如前述方法实施例中的接收设备)，但本申请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16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，芯片系统或子系统；
(2)具有一个或多个IC的集合，可选的，该IC集合也可以包括用于存储数据，计算机程序的存储部件；
(3)ASIC，例如调制解调器(Modem)；
(4)可嵌入在其他设备内的模块；
(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等；
(6)其他等等。
对于通信装置可以是芯片或芯片系统的情况，可参见图17所示的芯片的结构示意图。图17所示的芯片包括处理器171和接口172。其中，处理器171的数量可以是一个或多个，接口172的数量可以是多个。
可选的，芯片还包括存储器173，存储器173用于存储必要的计算机程序和数据。
该芯片用于执行时实现上述任一方法实施例的功能。
本领域技术人员还可以了解到本申请实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现所述的功能，但这种实现不应被理解为超出本申请实施例保护的范围。
本申请实施例还提供一种PSCCH传输的通信系统，该系统包括前述图15实施例中作为终端设备的通信装置，或者，该系统包括前述图17实施例中作为终端设备的通信装置。
本申请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。
本申请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申请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：本申请中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围，也表示先后顺序。
本申请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，本申请不做限制。在本申请实施例中，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。
本申请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，本申请并不限定。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，本申请中的表格中，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。
本申请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申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (42)

  1. 一种数据前转信息的传输方法，其特征在于，由第一节点执行，所述方法包括：
    根据设定触发事件，向第二节点发送数据前转信息。
  2. 根据权利要求1所述的方法，其特征在于，所述根据设定触发事件，向第二节点发送数据前转信息，包括：
    根据所述设定触发事件，经由第三节点向所述第二节点发送所述数据前转信息。
  3. 根据权利要求1或2所述的方法，其特征在于，所述设定触发事件包括以下事件中的任一种：
    辅小区组SCG选择性激活；
    主小区组MCG选择性激活；
    同时的MCG和SCG选择性激活；
    同时的MCG和SCG基于条件触发的移动性过程。
  4. 根据权利要求1或2所述的方法，其特征在于，所述数据前转信息，包括以下信息中的至少一种：
    终端设备的数据路径标识信息；
    数据承载标识；
    数据承载类型；
    数据发送状态信息。
  5. 根据权利要求4所述的方法，其特征在于，所述终端设备的数据路径标识信息，包括以下路径标识信息中的至少一项：
    下行发送路径标识信息，其中，所述下行发送路径标识信息包括第一数据发送源地址和第一数据发送目标地址中的至少一个；
    上行发送路径标识信息，其中，所述上行发送路径标识信息包括第二数据发送源地址和第二数据发送目标地址中的至少一个。
  6. 根据权利要求4所述的方法，其特征在于，所述数据承载标识，包括以下标识中的至少一项：
    会话标识；
    数据流标识；
    业务标识；
    发送路径标识；
    逻辑信道标识。
  7. 根据权利要求4所述的方法，其特征在于，所述数据发送状态信息，包括以下状态信息中的至少一项：
    下行数据发送状态信息，其中，所述下行数据发送状态信息包括第一发送数据对应的编号和第一丢弃数据对应的编号中的至少一种。
    上行数据发送状态信息，其中，所述上行数据发送状态信息包括第二发送数据对应的编号和第二丢弃数据对应的编号中的至少一种。
  8. 根据权利要求7所述的方法，其特征在于，所述第一发送数据对应的编号和所述第二发送数据对应的编号均包括以下情况中的至少一项：
    首个发送数据编号；
    首个发送数据编号对应的前N个编号，所述N为正整数；
    首个发送数据编号对应的后M个编号，所述M为正整数；
    每1个发送数据对应的编号；
    所述第一丢弃数据对应的编号和所述第二丢弃数据对应的编号均包括以下情况中的至少一项：
    丢弃数据编号的下边界值；
    丢弃数据编号的上边界值；
    丢弃数据编号的下边界值和上边界值。
  9. 根据权利要求1或2所述的方法，其特征在于，所述设定触发事件为所述基于条件触发的移动性过程，所述第一节点为源主节点MN，所述第二节点为目标节点；
    所述根据设定触发事件，向第二节点发送数据前转信息，包括：
    所述源MN向所述目标节点发送所述数据前转信息。
  10. 根据权利要求9所述的方法，其特征在于，其中：
    在所述目标节点为目标主节点MN的情况下，所述数据前转信息为用于所述源MN向所述目标MN发送的第一数据前转信息；
    在所述目标节点为目标辅节点SN的情况下，所述数据前转信息为用于所述源MN向所述目标SN直接发送的第二数据前转信息，或者为所述源MN经由所述目标MN发送至所述目标SN的第二数据前转信息。
  11. 根据权利要求1或2所述的方法，其特征在于，所述基于条件触发的移动性过程包括条件切换CHO和条件主辅小区变更CPC，所述第一节点为源SN，所述第二节点为目标SN；
    所述根据设定触发事件，向第二节点发送数据前转信息，包括：
    所述源SN向目标SN发送用于所述源SN和所述目标SN之间数据发送的第三数据前转信息；或者，
    所述源SN向源MN发送所述第三数据前转信息，所述源MN用于转发所述第三数据前转信息至所述目标SN。
  12. 根据权利要求1或2所述的方法，其特征在于，所述设定触发条件为一个小区组选择性激活，所述第二节点为目标节点；
    所述根据设定触发事件，向第二节点发送数据前转信息，包括：
    所述第一节点向所述目标节点发送用于所述第一节点和所述目标节点之间数据发送的第四数据前转信息；
    其中，所述第一节点为源MN、源SN、锚点基站、锚点MN或者锚点SN中的一种。
  13. 根据权利要求12所述的方法，其特征在于，所述第一节点为源节点，所述第一节点向所述目标节点发送所述第四数据前转信息的过程，包括：
    所述源节点向第三节点发送所述第四数据前转信息，所述第三节点用于转发所述第四数据前转信息至所述目标节点。
  14. 根据权利要求13所述的方法，其特征在于，所述方法还包括：
    所述源节点为所述源MN，所述源MN向所述第三节点发送所述第四数据前转信息，所述第三节 点为锚点基站或者锚点MN中的一种；
    所述源节点为源SN，所述源SN向所述第三节点发送所述第四数据前转信息，所述第三节点为源MN、锚点基站、锚点MN或者锚点SN中的一种。
  15. 根据权利要求12所述的方法，其特征在于，所述方法还包括：
    所述设定触发条件为SCG选择性激活，所述目标节点为目标SN；
    所述设定触发条件为MCG选择性激活，所述目标节点为目标MN。
  16. 根据权利要求1或2所述的方法，其特征在于，所述设定触发条件为同时的MCG和SCG选择性激活，所述第二节点包括目标SN和目标MN；
    所述根据设定触发事件，向第二节点发送数据前转信息，包括：
    所述第一节点向所述目标SN发送用于所述第一节点和所述目标SN之间数据发送的第五数据前转信息；
    所述第一节点向所述目标MN发送用于所述第一节点和所述目标MN之间数据发送的第五数据前转信息
    其中，所述第一节点为源MN、源SN、锚点基站、锚点MN或者锚点SN中的一种。
  17. 根据权利要求16所述的方法，其特征在于，所述第一节点为源节点，所述方法还包括：
    针对所述目标SN和目标MN中的任一目标节点，所述第一节点向所述目标节点发送所述第五数据前转信息的过程，包括：
    所述源节点向第三节点发送所述第四数据前转信息，所述第三节点用于转发所述第四数据前转信息至所述目标节点。
  18. 一种数据前转信息的传输方法，其特征在于，由第二节点执行，所述方法包括：
    接收第一节点根据设定触发事件发送的数据前转信息。
  19. 根据权利要求18所述的方法，其特征在于，所述接收第一节点根据设定触发事件发送的数据前转信息，包括：
    接收所述第一节点经由第三节点发送的所述数据前转信息。
  20. 根据权利要求18或19所述的方法，其特征在于，所述设定触发事件包括以下事件中的任一种：
    辅小区组SCG选择性激活；
    主小区组MCG选择性激活；
    同时的MCG和SCG选择性激活；
    同时的MCG和SCG基于条件触发的移动性过程。
  21. 根据权利要求18或19所述的方法，其特征在于，所述数据前转信息，包括以下信息中的至少一种：
    终端设备的数据路径标识信息；
    数据承载标识；
    数据承载类型；
    数据发送状态信息。
  22. 根据权利要求21所述的方法，其特征在于，所述终端设备的数据路径标识信息，包括以下路 径标识信息中的至少一项：
    下行发送路径标识信息，其中，所述下行发送路径标识信息包括第一数据发送源地址和第一数据发送目标地址中的至少一个；
    上行发送路径标识信息，其中，所述上行发送路径标识信息包括第二数据发送源地址和第二数据发送目标地址中的至少一个。
  23. 根据权利要求21所述的方法，其特征在于，所述数据承载标识，包括以下标识中的至少一项：
    会话标识；
    数据流标识；
    业务标识；
    发送路径标识；
    逻辑信道标识。
  24. 根据权利要求21所述的方法，其特征在于，所述数据发送状态信息，包括以下状态信息中的至少一项：
    下行数据发送状态信息，其中，所述下行数据发送状态信息包括第一发送数据对应的编号和第一丢弃数据对应的编号中的至少一种。
    上行数据发送状态信息，其中，所述上行数据发送状态信息包括第二发送数据对应的编号和第二丢弃数据对应的编号中的至少一种。
  25. 根据权利要求24所述的方法，其特征在于，所述第一发送数据对应的编号和所述第二发送数据对应的编号均包括以下情况中的至少一项：
    首个发送数据编号；
    首个发送数据编号对应的前N个编号，所述N为正整数；
    首个发送数据编号对应的后M个编号，所述M为正整数；
    每1个发送数据对应的编号；
    所述第一丢弃数据对应的编号和所述第二丢弃数据对应的编号均包括以下情况中的至少一项：
    丢弃数据编号的下边界值；
    丢弃数据编号的上边界值；
    丢弃数据编号的下边界值和上边界值。
  26. 根据权利要求18或19所述的方法，其特征在于，所述设定触发事件为所述基于条件触发的移动性过程，所述第一节点为源主节点MN，所述第二节点为目标节点；
    所述接收第一节点根据设定触发事件发送的数据前转信息，包括：
    接收所述源MN发送的所述数据前转信息。
  27. 根据权利要求26所述的方法，其特征在于，所述接收所述源MN发送的所述数据前转信息，包括：
    在所述目标节点为目标主节点MN的情况下，所述数据前转信息为用于所述源MN向所述目标MN发送的第一数据前转信息；接收所述源MN直接发送的所述第一数据前转信息；
    在所述目标节点为目标辅节点SN的情况下，所述数据前转信息为用于所述源MN向所述目标SN直接发送的第二数据前转信息，或者为所述源MN经由所述目标MN发送至所述目标SN的第二数据 前转信息，接收所述源SN直接发送的所述第二数据前转信息，或者接收所述源MN经由所述目标MN发送至所述目标SN的第二数据前转信息。
  28. 根据权利要求18或19所述的方法，其特征在于，所述基于条件触发的移动性过程包括CHO和CPC，所述第一节点为源SN，所述第二节点为目标SN；
    所述接收第一节点根据设定触发事件发送的数据前转信息，包括：
    接收所述源SN发送的用于所述源SN和所述目标SN之间数据发送的第三数据前转信息；或者，
    接收源MN转发的所述第三数据前转信息，所述第三数据前转信息由所述源SN发送给所述源MN。
  29. 根据权利要求18或19所述的方法，其特征在于，所述设定触发条件为一个小区组选择性激活，所述第二节点为目标节点；
    所述接收第一节点根据设定触发事件发送的数据前转信息，包括：
    接收所述第一节点发送的用于所述第一节点和所述目标节点之间数据发送的第四数据前转信息；
    其中，所述第一节点为源MN、源SN、锚点基站、锚点MN或者锚点SN中的一种。
  30. 根据权利要求29所述的方法，其特征在于，所述第一节点为源节点，接收所述第一节点发送的所述第四数据前转信息的过程，包括：
    接收第三节点转发的所述第四数据前转信息，所述第四数据前转信息由所述源节点发送给所述第三节点。
  31. 根据权利要求30所述的方法，其特征在于，所述方法还包括：
    所述源节点为所述源MN，所述第三节点为锚点基站或者锚点MN中的一种；
    所述源节点为源SN，所述第三节点为源MN、锚点基站、锚点MN或者锚点SN中的一种。
  32. 根据权利要求29所述的方法，其特征在于，所述方法还包括：
    所述设定触发条件为SCG选择性激活，所述目标节点为目标SN；
    所述设定触发条件为MCG选择性激活，所述目标节点为目标MN。
  33. 根据权利要求18或19所述的方法，其特征在于，所述设定触发条件为同时的MCG和SCG选择性激活，所述第二节点包括目标SN和目标MN；
    所述接收第一节点根据设定触发事件发送的数据前转信息，包括：
    所述第二节点为所述目标SN，所述目标SN接收所述第一节点发送的用于所述第一节点和所述目标SN之间数据发送的第五数据前转信息；
    所述第二节点为所述目标MN，所述目标MN接收所述第一节点发送的用于所述第一节点和所述目标MN之间数据发送的第五数据前转信息
    其中，所述第一节点为源MN、源SN、锚点基站、锚点MN或者锚点SN中的一种。
  34. 根据权利要求33所述的方法，其特征在于，所述第一节点为源节点，所述方法还包括：
    针对所述目标SN和目标MN中的任一目标节点，接收所述第一节点发送的所述第五数据前转信息的过程，包括：
    接收第三节点转发的所述第五数据前转信息，所述第五数据前转信息由所述源节点发送给所述第三节点。
  35. 一种通信装置，其特征在于，包括：
    收发模块，用于根据设定触发事件，向第二节点发送数据前转信息。
  36. 一种通信装置，其特征在于，包括：
    收发模块，用于接收第一节点根据设定触发事件发送的数据前转信息。。
  37. 一种通信装置，其特征在于，所述装置包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如权利要求1至17中任一项所述的方法。
  38. 一种通信装置，其特征在于，所述装置包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如权利要求18至34中所述的方法。
  39. 一种通信装置，其特征在于，包括：处理器和接口电路；
    所述接口电路，用于接收代码指令并传输至所述处理器；
    所述处理器，用于运行所述代码指令以执行如权利要求1至17中任一项所述的方法。
  40. 一种通信装置，其特征在于，包括：处理器和接口电路；
    所述接口电路，用于接收代码指令并传输至所述处理器；
    所述处理器，用于运行所述代码指令以执行如权利要求18至34中所述的方法。
  41. 一种计算机可读存储介质，用于存储有指令，当所述指令被执行时，使如权利要求1至17中任一项所述的方法被实现。
  42. 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18至34中所述的方法被实现。
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