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WO2022135438A1 - 切换小区的方法、终端设备和网络设备 - Google Patents

切换小区的方法、终端设备和网络设备 Download PDF

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Publication number
WO2022135438A1
WO2022135438A1 PCT/CN2021/140306 CN2021140306W WO2022135438A1 WO 2022135438 A1 WO2022135438 A1 WO 2022135438A1 CN 2021140306 W CN2021140306 W CN 2021140306W WO 2022135438 A1 WO2022135438 A1 WO 2022135438A1
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WO
WIPO (PCT)
Prior art keywords
scg
node
suspension
suspension state
processor
Prior art date
Application number
PCT/CN2021/140306
Other languages
English (en)
French (fr)
Inventor
刘选兵
鲍炜
杨晓东
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202011568733.7A external-priority patent/CN114679750B/zh
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to EP21909434.9A priority Critical patent/EP4247053A4/en
Priority to KR1020237019788A priority patent/KR20230106672A/ko
Priority to JP2023536051A priority patent/JP2023552905A/ja
Publication of WO2022135438A1 publication Critical patent/WO2022135438A1/zh
Priority to US18/212,716 priority patent/US20230337074A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0064—Transmission or use of information for re-establishing the radio link of control information between different access points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/25—Maintenance of established connections

Definitions

  • Embodiments of the present invention relate to the field of communications, and in particular, to a method, terminal device, and network device for switching cells.
  • the 5G New Radio (NR) system and the Long Term Evolution (Long Term Evolution, LTE) system can be coupled in a dual connectivity (Dual Connectivity, DC) manner.
  • One of the systems serves as the master node (Master Node, MN), and the other system serves as the secondary node (Secondary Node, SN).
  • Master Node, MN Master Node
  • secondary Node, SN secondary Node
  • two cell groups are included, namely: a master cell group (Master Cell Group, MCG) and a secondary cell group (Secondary Cell Group, SCG).
  • a user equipment may also be called a terminal device or a user terminal, and the SCG connection may be suspended to perform other tasks.
  • UE User Equipment
  • the multi-card terminal may contain multiple UEs, one card corresponds to one UE, and the terminal may suspend the SCG connection of one UE to Execute the task of another card corresponding to the UE.
  • MR-DC Multi-RAT Dual Connectivity
  • the UE initiates SCG suspension, the SCG state between network nodes cannot be synchronized when handover occurs.
  • the embodiments of the present application provide a cell switching method, a terminal device, and a network device, which can synchronize SCG states between network nodes when switching occurs.
  • a first aspect provides a method for switching cells, the method being performed by a source node, the method comprising: sending SCG suspension status information of a secondary cell group to a target node, wherein the SCG suspension status information is used for Indicates that the UE is in SCG pending state.
  • a method for switching cells is provided, the method is performed by a target node, the method includes: receiving SCG suspension status information sent by a source node, wherein the SCG suspension status information is used to indicate a UE In SCG pending state.
  • a method for switching cells is provided, the method is performed by a user equipment, and the method includes: in an SCG suspension state, receiving a handover configuration message; in an SCG suspension state, receiving a handover configuration message; In the SCG suspension state, according to the handover configuration message, the SCG operation process is performed, including one of the following: adding an SCG, modifying the SCG, releasing the SCG; maintaining the SCG suspension state.
  • an apparatus for switching cells comprising: a sending module configured to send SCG suspension status information of a secondary cell group to a target node, wherein the SCG suspension status information is used to indicate that the UE is in SCG pending state.
  • an apparatus for switching cells includes: a processing module configured to receive SCG suspension status information sent by a source node, wherein the SCG suspension status information is used to indicate that the UE is in SCG suspension up state.
  • an apparatus for switching cells includes: a receiving module, configured to receive a switching configuration message in an SCG suspension state.
  • a network device in a seventh aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the processor When executed, the steps of the method as described in the first aspect or the second aspect are implemented.
  • a terminal device in an eighth aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the processor When executed, the steps of the method as described in the third aspect are implemented.
  • a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the implementation is as described in the first aspect or the second aspect or the third aspect steps of the method.
  • a tenth aspect provides a computer program product comprising a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the The processor implements the steps of the method as described in the first aspect or the second aspect or the third aspect when executed.
  • a chip in an eleventh aspect, includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the first aspect or the second The steps of the method of aspect or the third aspect.
  • a method, terminal device, and network device for switching cells provided by the embodiments of the present invention send SCG suspension status information of a secondary cell group to a target node, wherein the SCG suspension status information is used to indicate that the UE is in SCG suspension state, which can synchronize the SCG state between network nodes when handover occurs.
  • FIG. 1 shows a schematic diagram of a wireless communication system to which an embodiment of the present application can be applied.
  • FIG. 2 is a schematic flowchart of a method for switching cells according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a method for switching cells according to another embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of a method for switching cells according to another embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of an apparatus for switching cells according to an embodiment of the present invention.
  • FIG. 6 is a schematic flowchart of an apparatus for switching cells according to another embodiment of the present invention.
  • FIG. 7 is a schematic flowchart of an apparatus for switching cells according to another embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a network device according to another embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a terminal device according to another embodiment of the present invention.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • NR New Radio
  • the following description describes a New Radio (NR) system for example purposes, and uses NR terminology in most of the description below, but these techniques can also be applied to applications other than NR system applications, such as 6th generation (6 th Generation, 6G) communication system.
  • 6th generation 6 th Generation, 6G
  • FIG. 1 shows a schematic diagram of a wireless communication system to which an embodiment of the present application can be applied.
  • the wireless communication system includes a terminal 11 and a network-side device 12 .
  • the terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital computer Assistant (Personal Digital Assistant, PDA), PDA, Netbook, Ultra-mobile Personal Computer (UMPC), Mobile Internet Device (MID), Wearable Device (Wearable Device) or vehicle-mounted device (VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: bracelets, headphones, glasses, etc.
  • PDA Personal Digital Assistant
  • MID Mobile Internet Device
  • MID Wearable Device
  • VUE vehicle-mounted device
  • PUE pedestrian terminal
  • wearable devices include: bracelets, headphones, glasses, etc.
  • the network side device 12 may be a base station or a core network, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node, Send Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of this application, only the NR system is used. The base station in the example is taken as an example, but the specific type of the base station is not limited.
  • an embodiment of the present invention provides a method 200 for switching cells, which can be executed by a network device, in other words, the method can be executed by software or hardware installed in the network device, and the network device can For the source node, the method includes the following steps:
  • S202 Send the SCG suspension state information of the secondary cell group to the target node.
  • the SCG suspension state information is used to indicate that the UE is in the SCG suspension state.
  • the target node receives the SCG suspension status information sent by the source node.
  • the UE may be a UE in a multi-card terminal.
  • a multi-card terminal can include multiple UEs and can reside on multiple networks at the same time.
  • the SCG pending state includes at least one of the following states:
  • the SCG initiated by the UE is suspended
  • the SCG suspension state information of the secondary cell group is sent to the target node.
  • the method for switching cells provided by the embodiments of the present invention can synchronize the SCG states between network nodes when switching occurs by sending the SCG suspension state information of the secondary cell group to the target node.
  • an embodiment of the present invention provides a method 300 for switching cells, which can be performed by a network device and/or a UE, in other words, the method can be performed by software installed in the network device and/or the UE or
  • the network device may include: a source node and a target node, and the method includes the following steps:
  • the source node sends the SCG suspension state information of the secondary cell group to the target node.
  • the SCG suspension state information is used to indicate that the UE is in the SCG suspension state.
  • This step may adopt the description of step S202 in the embodiment of FIG. 2 , which will not be repeated here.
  • the target node receives the SCG suspension status information sent by the source node.
  • the target node receives the SCG suspension status information sent by the source node.
  • the content included in the SCG suspension state information, the sending timing, and the manner are the same as those in the previous step, and will not be repeated here.
  • S324 Keep the UE in the SCG suspension state.
  • the cell switching method provided by the embodiment of the present invention can synchronize the SCG state between network nodes when the UE initiates the SCG suspension by sending the SCG suspension state information of the secondary cell group to the target node.
  • an embodiment of the present invention provides a method 400 for switching cells, which can be performed by a network device and/or a UE, in other words, the method can be implemented by software installed in the network device and/or the UE or hardware, the network device may include: a source node, a target primary node, and a target secondary node, and the method includes the following steps:
  • the source node sends the SCG suspension state information of the secondary cell group to the target master node.
  • the source node may be the source master node, and the SCG suspension state information is used to indicate that the UE is in the SCG suspension state.
  • This step may adopt the description of step S202 in the embodiment of FIG. 2 , which will not be repeated here.
  • the target master node receives the SCG suspension status information sent by the source node.
  • S424 Keep the UE in the SCG suspension state.
  • Steps S422-S424 may adopt the descriptions of steps S322-S324 in the embodiment of FIG. 3, which will not be repeated here.
  • the target master node notifies the target secondary node that the UE is in the SCG suspension state.
  • the information for notifying the target secondary node that the UE is in the SCG suspension state is included in the secondary node addition request message.
  • S414 The source node sends a handover configuration message to the UE.
  • the handover configuration message is used for at least one of the following: adding an SCG, modifying an SCG, and releasing an SCG.
  • S432 The UE receives a handover configuration message in the SCG suspension state.
  • S434 In the SCG suspension state, the UE performs the SCG operation process according to the handover configuration message.
  • the SCG operation process includes one of the following: adding SCG, modifying SCG, releasing SCG.
  • the UE by sending the SCG suspension state information of the secondary cell group to the target primary node, and the target primary node notifying the target secondary node that the UE is in the SCG suspension state, the UE can initiate SCG suspension at the UE.
  • the SCG state between network nodes is synchronized when handover occurs.
  • the MR-DC switching process may include:
  • the source master node starts the handover process and sends a handover request message (Handover Request) to the target master node.
  • a handover request message (Handover Request)
  • the SCG suspension state information in the above step S412 may be carried in the handover request message.
  • the target master node sends a secondary node addition request message (SN Addition Request) to the target secondary node.
  • the target primary node optionally retains the source secondary node, in which case the target secondary node is the source secondary node.
  • the information used to notify the target secondary node UE that the UE is in the SCG suspension state in the above step S426 may be carried in the SN Addition Request, that is, the SN Addition Request may include the SCG suspension state information.
  • the target secondary node responds to the target primary node add request response message (SN Addition Request Acknowledge);
  • the target master node sends a Handover Request Acknowledge message to the source master node.
  • the source master node releases the source slave node.
  • step S414 the source master node sends a handover configuration message to the UE to perform handover.
  • step S432 the UE receives the handover configuration message in the SCG suspension state.
  • step S434 in the SCG suspension state, the UE performs the SCG operation process according to the handover configuration message, for example, the UE synchronizes to the target master node and sends a reconfiguration complete message.
  • the UE accesses the target secondary node.
  • the target primary node notifies the target secondary node that the reconfiguration is complete.
  • the source master node sends a secondary node status transfer message (SN StatusTransfer) to the target master node.
  • the target primary node transfers the secondary node status (SN Status) to the target secondary node.
  • the SCG suspension state information in the foregoing step S412 may also be carried in the handover request message.
  • the target master node initiates the UE Context Release process.
  • Example 1 the SCG can be notified of suspension in the handover request, and the handover process can include:
  • the UE is in the connected state, and the SCG connection has been established.
  • the UE reports the secondary cell group suspension (SCG Suspend) to the network.
  • SCG Suspend secondary cell group suspension
  • the network After the network receives the suspension information of the secondary cell group, the network cannot send and receive information through the SCG connection.
  • the UE is in connected mode.
  • the suspension of the secondary cell group includes but is not limited to:
  • SCG is in a suspended state (SCG Suspend);
  • the SCG connection is suspended by the SCG suspension process initiated by the UE (UE initiated SCG Suspend);
  • the UE does not establish an SCG connection, but the UE temporarily suspends the MR-DC capability; (UE SCG Capability Suspend)
  • the UE does not establish an SCG connection, but the UE temporarily suspends the MR-DC terminal resources; (UE SCG Resource Suspend)
  • SCG is in multi-SIM suspend state (SCG Suspend by Multi-SIM).
  • the source master node initiates the handover process, and the source master node sends a handover request message (Handover Request) to the target master node.
  • Handover Request a handover request message
  • the SCG suspension status information including but not limited to:
  • the SCG connection is suspended by the SCG suspension process initiated by the UE (UE initiated SCG Suspend);
  • UE temporarily suspends MR-DC capability (UE SCG Capability Suspend)
  • UE temporarily suspends MR-DC terminal resources (UE SCG Resource Suspend)
  • the source master node carries SCG suspension state information in the handover request message Handover Request.
  • the SCG suspension state information may be included in the UE context information (UE Context Information) information element of the Handover Request message.
  • the target master node sends an SN Addition Request to the target slave node.
  • the SN Addition Request may include the SCG suspension state information to notify the target secondary node that the UE is in the SCG suspension state.
  • the target secondary node sends a response SN Addition Request Acknowledge message to the target primary node.
  • the source master node sends a handover configuration message to the UE to perform handover.
  • the handover configuration message includes SCG configuration information.
  • the UE receives the handover configuration message.
  • the network may configure the UE to maintain the SCG suspension state.
  • the UE performs the SCG operation process according to the handover configuration message, for example, the UE synchronizes to the target master node and sends a reconfiguration complete message.
  • the UE synchronizes or measures the target secondary node.
  • the SCG can be notified by SN Status Transfer to suspend, and the switching process can include:
  • the UE is in the connected state, and the SCG connection has been established.
  • the UE reports the secondary cell group suspension (SCG Suspend) to the network.
  • SCG Suspend secondary cell group suspension
  • the network After the network receives the suspension information of the secondary cell group, the network cannot send and receive information through the SCG connection.
  • the UE is in connected mode.
  • the suspension of the secondary cell group includes but is not limited to:
  • SCG is in a suspended state (SCG Suspend);
  • the SCG connection is suspended by the SCG suspension process initiated by the UE (UE initiated SCG Suspend);
  • UE suspends the established SCG connection; (UE SCG Suspend);
  • the UE does not establish an SCG connection, but the UE temporarily suspends the MR-DC capability; (UE SCG Capability Suspend)
  • the UE does not establish an SCG connection, but the UE temporarily suspends the MR-DC terminal resources. (UE SCG Resource Suspend);
  • the network initiates the handover process.
  • the UE receives the handover configuration message RRCReconfiguration Message.
  • the handover configuration message includes an SCG configuration.
  • the UE performs the SCG operation process according to the handover configuration message, for example, the UE sends a reconfiguration complete message.
  • the network configures the UE to keep the SCG suspended.
  • the source secondary node sends an SN Status Transfer message to the source primary node.
  • the SN Status Transfer contains SCG pending status information.
  • the SCG suspension status information including but not limited to:
  • the SCG connection is suspended by the SCG suspension process initiated by the UE (UE initiated SCG Suspend);
  • the UE temporarily suspends the MR-DC capability. (UE SCG Capability Suspend);
  • the UE temporarily suspends the MR-DC terminal resources. (UE SCG Resource Suspend);
  • the source master node sends the SN Status Transfer message to the target master node.
  • the SN Status Transfer contains SCG pending status information. That is, the SCG suspension status information in the above step S412 can be carried in the SN Status Transfer.
  • the target master node receives the SN Status Transfer message.
  • the target primary node sends an SN Status Transfer message to the target secondary node.
  • the information used to notify the target secondary node UE that the UE is in the SCG suspension state may be carried in the SN Status Transfer, that is, the SN Status Transfer includes the SCG suspension state information.
  • the handover process when the SCG connection is not established may include:
  • the UE is in the connected state and the SCG connection is not established.
  • the UE reports the secondary cell group suspension (SCG Suspend) to the network.
  • SCG Suspend secondary cell group suspension
  • the network After the network receives the suspension information of the secondary cell group, the network cannot send and receive information through the SCG connection.
  • the UE is in connected mode.
  • the suspension of the secondary cell group includes but is not limited to:
  • the UE temporarily suspends the MR-DC capability. (UE SCG Capability Suspend)
  • the UE temporarily suspends MR-DC terminal resources, such as terminal physical layer resources. (UE SCG Resource Suspend)
  • the source master node initiates the handover process, and the source master node sends the handover request message Handover Request to the target master node.
  • the SCG suspension status information including but not limited to:
  • the UE temporarily suspends the MR-DC capability. (UE SCG Capability Suspend)
  • the UE temporarily suspends MR-DC terminal resources, such as terminal physical layer resources. (UE SCG Resource Suspend)
  • the source master node carries SCG suspension state information in the handover request message Handover Request.
  • the SCG suspension state information may be included in the UE context information (UE Context Information) information element of the Handover Request message.
  • the source master node sends a handover configuration message to the UE to perform handover.
  • the handover configuration message optionally includes SCG configuration information.
  • the UE receives the handover configuration message.
  • the UE maintains the SCG suspension state.
  • the UE performs the SCG operation process according to the handover configuration message, for example, the UE synchronizes to the target master node and sends a reconfiguration complete message.
  • the execution subject may be an apparatus for switching cells, or a control module in the apparatus for performing loading of the above method.
  • the method for switching cells provided by the embodiments of the present application is described by taking the method for loading the switching cells performed by the device for switching cells as an example.
  • FIG. 5 is a schematic structural diagram of an apparatus for switching cells according to an embodiment of the present invention.
  • the apparatus 500 for switching cells includes: a sending module 510 and a determining module 520 .
  • the sending module 510 is configured to send the SCG suspension state information of the secondary cell group to the target node, wherein the SCG suspension state information is used to indicate that the UE is in the SCG suspension state.
  • the sending module 510 is further configured to send a handover configuration message to the UE after sending the SCG suspension state information of the secondary cell group to the target node.
  • the handover configuration message is used for one of the following: adding an SCG, modifying an SCG, and releasing an SCG.
  • the SCG pending state includes at least one of the following states:
  • the SCG initiated by the UE is suspended
  • the SCG suspension state information is included in a handover request message or a secondary node state transfer message.
  • the determining module 520 is configured to determine the SCG suspension state information of the secondary cell group before sending the SCG suspension state information of the secondary cell group to the target node.
  • the apparatus for switching cells in this embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal.
  • the apparatus may be a mobile electronic device or a non-mobile electronic device.
  • the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (personal digital assistant).
  • UMPC ultra-mobile personal computer
  • netbook or a personal digital assistant
  • non-mobile electronic devices can be servers, network attached storage (Network Attached Storage, NAS), personal computer (personal computer, PC), television (television, TV), teller machine or self-service machine, etc., this application Examples are not specifically limited.
  • Network Attached Storage NAS
  • personal computer personal computer, PC
  • television television
  • teller machine or self-service machine etc.
  • the device for switching cells in this embodiment of the present application may be a device with an operating system.
  • the operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
  • FIG. 6 is a schematic structural diagram of an apparatus for switching cells according to an embodiment of the present invention.
  • the apparatus 600 for switching cells includes: a processing module 610 and a synchronization module 620 .
  • the processing module 610 is configured to receive the SCG suspension state information sent by the source node, where the SCG suspension state information is used to indicate that the UE is in the SCG suspension state.
  • the processing module 610 is further configured to: after receiving the SCG suspension state information sent by the source node, keep the UE in the SCG suspension state.
  • the processing module 610 is further configured to: after receiving the UE-initiated SCG suspension state information sent by the source node, Notify the target secondary node that the UE is in the SCG suspension state.
  • the information for notifying the target secondary node that the UE is in the SCG suspension state is included in the secondary node addition request message.
  • the SCG pending state includes at least one of the following states:
  • the SCG initiated by the UE is suspended
  • the SCG suspension state information is included in a handover request message or a secondary node state transfer message.
  • the apparatus for switching cells in this embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal.
  • the apparatus may be a mobile electronic device or a non-mobile electronic device.
  • the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (personal digital assistant).
  • UMPC ultra-mobile personal computer
  • netbook or a personal digital assistant
  • non-mobile electronic devices can be servers, network attached storage (Network Attached Storage, NAS), personal computer (personal computer, PC), television (television, TV), teller machine or self-service machine, etc., this application Examples are not specifically limited.
  • Network Attached Storage NAS
  • personal computer personal computer, PC
  • television television
  • teller machine or self-service machine etc.
  • the device for switching cells in this embodiment of the present application may be a device with an operating system.
  • the operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
  • the apparatus 600 may refer to the process corresponding to the target node in the methods 200-400 of the embodiment of the present invention, and each unit/module in the apparatus 600 and the above-mentioned other operations and/or functions are respectively for implementing the method 200.
  • the corresponding processes in -400 can achieve the same or equivalent technical effects, and are not repeated here for brevity.
  • FIG. 7 is a schematic structural diagram of an apparatus for switching cells according to an embodiment of the present invention.
  • the apparatus 700 for switching cells includes: a receiving module 710 , an operating module 720 and a holding module 730 .
  • the receiving module 710 is configured to receive the handover configuration message in the SCG suspension state.
  • the operation module 720 is configured to, after receiving the handover configuration message in the SCG suspension state, perform an SCG operation process according to the handover configuration message in the SCG suspension state, including one of the following: adding an SCG, modifying an SCG, Release SCG.
  • the hold module 730 is used to hold the SCG suspended state.
  • the SCG pending state includes at least one of the following states:
  • the SCG initiated by the UE is suspended
  • the apparatus for switching cells in this embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal.
  • the apparatus may be a mobile electronic device or a non-mobile electronic device.
  • the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (personal digital assistant).
  • UMPC ultra-mobile personal computer
  • netbook or a personal digital assistant
  • non-mobile electronic devices can be servers, network attached storage (Network Attached Storage, NAS), personal computer (personal computer, PC), television (television, TV), teller machine or self-service machine, etc., this application Examples are not specifically limited.
  • Network Attached Storage NAS
  • personal computer personal computer, PC
  • television television
  • teller machine or self-service machine etc.
  • the device for switching cells in this embodiment of the present application may be a device with an operating system.
  • the operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
  • the apparatus 700 may refer to the process corresponding to the target node in the methods 200-400 of the embodiment of the present invention, and each unit/module in the apparatus 700 and the above-mentioned other operations and/or functions are respectively for implementing the method 200.
  • the corresponding processes in -400 can achieve the same or equivalent technical effects, and are not repeated here for brevity.
  • the network device 900 includes: an antenna 901 , a radio frequency device 902 , and a baseband device 903 .
  • the antenna 901 is connected to the radio frequency device 902 .
  • the radio frequency device 902 receives information through the antenna 901, and sends the received information to the baseband device 903 for processing.
  • the baseband device 903 processes the information to be sent and sends it to the radio frequency device 902
  • the radio frequency device 902 processes the received information and sends it out through the antenna 901 .
  • the above-mentioned frequency band processing apparatus may be located in the baseband apparatus 903 , and the method performed by the network side device in the above embodiments may be implemented in the baseband apparatus 903 .
  • the baseband apparatus 903 includes a processor 904 and a memory 905 .
  • the baseband device 903 may include, for example, at least one baseband board on which multiple chips are arranged. As shown in the figure, one of the chips is, for example, the processor 904, which is connected to the memory 905 to call the program in the memory 905 to execute the above The network device operations shown in the method embodiments.
  • the baseband device 903 may further include a network interface 906 for exchanging information with the radio frequency device 902, and the interface is, for example, a common public radio interface (CPRI for short).
  • CPRI common public radio interface
  • the network-side device in this embodiment of the present invention further includes: an instruction or program that is stored in the memory 905 and can be run on the processor 904, and the processor 904 invokes the instruction or program in the memory 905 to execute: send auxiliary Cell group SCG suspension state information, wherein the SCG suspension state information is used to indicate that the UE is in the SCG suspension state.
  • a handover configuration message is sent to the UE.
  • the handover configuration message is used for one of the following: adding an SCG, modifying an SCG, and releasing an SCG.
  • the SCG pending state includes at least one of the following states:
  • the SCG initiated by the UE is suspended
  • the SCG suspension state information is included in a handover request message or a secondary node state transfer message.
  • the processor 904 invokes the instruction or program in the memory 905 to execute: receiving the SCG suspension state information sent by the source node, where the SCG suspension state information is used to indicate that the UE is in the SCG suspension state.
  • the method further includes: keeping the UE in the SCG suspension state.
  • the target node is a target master node
  • the method further includes: notifying the target secondary node of the UE In SCG pending state.
  • the information for notifying the target secondary node that the UE is in the SCG suspension state is included in the secondary node addition request message.
  • the SCG pending state includes at least one of the following states:
  • the SCG initiated by the UE is suspended
  • the SCG suspension state information is included in a handover request message or a secondary node state transfer message.
  • the specific steps performed by the processor 904 are shown in the flowcharts of the target node or the source node in FIGS. 200-400 , which show the method for performing each step, and achieve the same technical effect. In order to avoid repetition, it is not repeated here.
  • FIG. 9 is a schematic diagram of a hardware structure of a terminal device implementing an embodiment of the present application.
  • the terminal device 1000 includes but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, and a processor 1010, etc. part.
  • the terminal device 1000 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 1010 through a power management system, so as to manage charging, discharging, and power consumption through the power management system. consumption management and other functions.
  • a power supply such as a battery
  • the terminal device structure shown in the figure does not constitute a limitation on the terminal device, and the terminal device may include more or less components than those shown in the figure, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 1004 may include a graphics processor (Graphics Processing Unit, GPU) 10041 and a microphone 10042. Such as camera) to obtain still pictures or video image data for processing.
  • the display unit 1006 may include a display panel 10061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 1007 includes a touch panel 10071 and other input devices 10072 .
  • the touch panel 10071 is also called a touch screen.
  • the touch panel 10071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 10072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.
  • the radio frequency unit 1001 receives the downlink data from the network side device, and then processes it to the processor 1010; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 1001 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • Memory 1009 may be used to store software programs or instructions as well as various data.
  • the memory 1009 may mainly include a stored program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 1009 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM) ), erasable programmable read-only memory (ErasablePROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • ErasablePROM ErasablePROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • the processor 1010 may include one or more processing units; optionally, the processor 1010 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs or instructions, etc. Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 1010.
  • the processor 1010 is configured to receive the handover configuration message in the SCG suspension state
  • the SCG operation process is performed according to the handover configuration message, including one of the following: adding an SCG, modifying the SCG, releasing the SCG; after the SCG operation process is performed according to the handover configuration message, maintaining the SCG suspension state.
  • the SCG pending state includes at least one of the following states:
  • the SCG initiated by the UE is suspended
  • the terminal device 1000 may refer to the UE processes in the methods 300 to 400 corresponding to the embodiments of the present invention, and each unit/module and the above-mentioned other operations and/or functions in the terminal device 1000 are respectively for the purpose of implementing the method
  • the process of the UE in 300-400 and can achieve the same or equivalent technical effect, for the sake of brevity, it will not be repeated here.
  • Embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process of the foregoing method for switching a cell is implemented, and can achieve The same technical effect, in order to avoid repetition, will not be repeated here.
  • the processor is the processor in the electronic device described in the foregoing embodiments.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the above method embodiments for switching cells and can achieve the same technical effect, in order to avoid repetition, it will not be repeated here.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip, or the like.
  • An embodiment of the present application further provides a computer program product, the computer program product includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being When executed by the processor, the steps of the method according to the first aspect are implemented.

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Abstract

本申请公开了一种切换小区的方法、终端设备和网络设备，属于通信领域。所述方法包括：向目标节点发送辅小区组SCG挂起状态信息，其中，所述SCG挂起状态信息用于指示UE处于SCG挂起状态。

Description

切换小区的方法、终端设备和网络设备
交叉引用
本发明要求在2020年12月25日提交中国专利局、申请号为202011568733.7、发明名称为“切换小区的方法、终端设备和网络设备”的中国专利申请的优先权，该申请的全部内容通过引用结合在本发明中。
技术领域
本发明实施例涉及通信领域，尤其涉及一种切换小区的方法、终端设备和网络设备。
背景技术
5G新空口(New Radio，NR)系统和长期演进(Long Term Evolution，LTE)系统可以以双连接(Dual Connectivity，DC)方式进行耦合。其中一个系统作为主节点(Master Node，MN)，另外一个系统作为辅节点(Secondary Node，SN)。在双连接系统中，包括两个小区组即：主小区组(Master Cell Group，MCG)和辅小区组(Secondary Cell Group，SCG)。
在一些场景下，用户设备(User Equipment，UE)也可以称作终端设备或者用户终端，可能要挂起SCG连接来执行其他任务。例如，对于支持多RAT双连接(Multi-RAT Dual Connectivity，MR-DC)的多卡终端，多卡终端可以包含多个UE，一个卡对应一个UE，终端可能要挂起一个UE的SCG连接来执行另外一卡对应UE的任务。然而，UE发起SCG挂起的情况下，在发生切换时，无法同步网络节点间的SCG状态。
发明内容
本申请实施例提供一种切换小区的方法、终端设备和网络设备，能够在发生切换时同步网络节点间的SCG状态。
第一方面，提供了一种切换小区的方法，所述方法由源节点执行，所述方法包括：向目标节点发送辅小区组SCG挂起状态信息，其中，所述SCG挂起状态信息用于指示UE处于SCG挂起状态。
第二方面，提供了一种切换小区的方法，所述方法由目标节点执行，所述方法包括：接收源节点发送的SCG挂起状态信息，其中，所述SCG挂起状态信息用于指示UE处于SCG挂起状态。
第三方面，提供了一种切换小区的方法，所述方法由用户设备执行，所述方法包括：在SCG挂起状态下，接收切换配置消息；在SCG挂起状态下，接收切换配置消息；在SCG挂起状态下，根据所述切换配置消息，执行SCG操作过程，包括以下之一：添加SCG、修改SCG、释放SCG；保持所述SCG挂起状态。第四方面，提供了一种切换小区的装置，所述装置包括：发送模块，用于向目标节点发送辅小区组SCG挂起状态信息，其中，所述SCG挂起状态信息用于指示UE处于SCG挂起状态。
第五方面，提供了一种切换小区的装置，所述装置包括：处理模块，用于接收源节点发送的SCG挂起状态信息，其中，所述SCG挂起状态信息用于指示UE处于SCG挂起状态。
第六方面，一种切换小区的装置，所述装置包括：接收模块，用于在SCG挂起状态下，接收切换配置消息。
第七方面，提供了一种网络设备，该网络设备包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第一方面或第二方面所述的方法的步骤。
第八方面，提供了一种终端设备，该终端设备包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第三方面所述的方法的步骤。
第九方面，提供了一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如第一方面或第二方面或第三方 面所述的方法的步骤。
第十方面，提供了一种计算机程序产品，该计算机程序产品包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第一方面或第二方面或第三方面所述的方法的步骤。
第十一方面，提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第一方面或第二方面或第三方面所述的方法的步骤。
本发明实施例提供的一种切换小区的方法、终端设备和网络设备，通过向目标节点发送辅小区组SCG挂起状态信息，其中，所述SCG挂起状态信息用于指示UE处于SCG挂起状态，能够在发生切换时同步网络节点间的SCG状态。
附图说明
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1示出本申请实施例可应用的一种无线通信系统的示意图。
图2是根据本发明的一个实施例的切换小区的方法的示意性流程图；
图3是根据本发明的另一个实施例的切换小区的方法的示意性流程图；
图4是根据本发明的另一个实施例的切换小区的方法的示意性流程图；
图5是根据本发明的一个实施例的切换小区的装置的示意性流程图；
图6是根据本发明的另一个实施例的切换小区的装置的示意性流程图；
图7是根据本发明的另一个实施例的切换小区的装置的示意性流程图；
图8是根据本发明的另一个实施例的网络设备的结构示意图；
图9是根据本发明的另一个实施例的终端设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
值得指出的是，本申请实施例所描述的技术不限于长期演进型(Long Term Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，还可用于其他无线通信系统，诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access，SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用，所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。然而，以下描述出于示例目的描述了新空口(NewRadio，NR)系统，并且在以下大部分描述中使用NR术语，但是这些技术也可应用于NR系统应用以外的应用，如第6代(6 thGeneration，6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的示意图。无线通信系统包括终端11和网络侧设备12。其中，终端11也可以称作终端设备或者 用户终端(User Equipment，UE)，终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant，PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer，UMPC)、移动上网装置(Mobile Internet Device，MID)、可穿戴式设备(Wearable Device)或车载设备(VUE)、行人终端(PUE)等终端侧设备，可穿戴式设备包括：手环、耳机、眼镜等。需要说明的是，在本申请实施例并不限定终端11的具体类型。网络侧设备12可以是基站或核心网，其中，基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station，BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set，BSS)、扩展服务集(Extended Service Set，ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、WLAN接入点、WiFi节点、发送接收点(TransmittingReceivingPoint，TRP)或所述领域中其他某个合适的术语，只要达到相同的技术效果，所述基站不限于特定技术词汇，需要说明的是，在本申请实施例中仅以NR系统中的基站为例，但是并不限定基站的具体类型。
下面结合附图，通过具体的实施例及其应用场景对本申请实施例提供的切换小区的方法进行详细地说明。
如图2所示，本发明的一个实施例提供一种切换小区的方法200，该方法可以由网络设备执行，换言之，该方法可以由安装在网络设备的软件或硬件来执行，该网络设备可以为源节点，该方法包括如下步骤：
S202：向目标节点发送辅小区组SCG挂起状态信息。
其中，所述SCG挂起状态信息用于指示UE处于SCG挂起状态。目标节点接收源节点发送的SCG挂起状态信息。
在一种实现方式中，UE可以为多卡终端中的UE。多卡终端可以包含多个UE，可以在多个网络同时驻留。
在一种实现方式中，所述SCG挂起状态包括以下状态中的至少一者：
UE发起的SCG挂起；
SCG去使能；
双连接能力挂起；
双连接能力去使能；
SCG资源挂起；
SCG资源去使能；
SCG连接去激活；
SCG连接释放。
在一种实现方式中，在源主节点发生切换的情况下，向目标节点发送辅小区组SCG挂起状态信息。
本发明实施例提供的切换小区的方法，通过向目标节点发送辅小区组SCG挂起状态信息，能够在发生切换时同步网络节点间的SCG状态。
如图3所示，本发明的一个实施例提供一种切换小区的方法300，该方法可以由网络设备和/或UE执行，换言之，该方法可以由安装在网络设备和/或UE的软件或硬件来执行，该网络设备可以包括：源节点、目标节点，该方法包括如下步骤：
S312：源节点向目标节点发送辅小区组SCG挂起状态信息。
其中，所述SCG挂起状态信息用于指示UE处于SCG挂起状态。
本步骤可以采用图2实施例步骤S202的描述，在此不在赘述。
S322：目标节点接收源节点发送的SCG挂起状态信息。
与上一步骤对应的，目标节点接收源节点发送的SCG挂起状态信息。所述SCG挂起状态信息所包含的内容和发送时机、方式等均与上一步骤相同，不再赘述。
S324：保持所述UE处于所述SCG挂起状态。
本发明实施例提供的切换小区的方法，通过向目标节点发送辅小区组 SCG挂起状态信息，能够在UE发起SCG挂起的情况下，同步网络节点间的SCG状态。
如图4所示，本发明的一个实施例提供一种切换小区的方法400，该方法可以由网络设备和/或UE执行，换言之，该方法可以由安装在网络设备和/或UE的软件或硬件来执行，该网络设备可以包括：源节点、目标主节点、目标辅节点，该方法包括如下步骤：
S412：源节点向目标主节点发送辅小区组SCG挂起状态信息。
其中，源节点可以为源主节点，所述SCG挂起状态信息用于指示UE处于SCG挂起状态。
本步骤可以采用图2实施例步骤S202的描述，在此不在赘述。
S422：目标主节点接收源节点发送的SCG挂起状态信息。
S424：保持所述UE处于所述SCG挂起状态。
步骤S422-S424可以采用图3实施例步骤S322-S324的描述，在此不在赘述。
S426：目标主节点通知目标辅节点所述UE处于SCG挂起状态。
可选地，用于通知目标辅节点所述UE处于SCG挂起状态的信息包含在辅节点添加请求消息中。
S414：源节点向所述UE发送切换配置消息。
可选地，所述切换配置消息用于以下至少一种：添加SCG、修改SCG、释放SCG。
S432：UE在SCG挂起状态下，接收切换配置消息。
S434：UE在SCG挂起状态下，根据所述切换配置消息，执行SCG操作过程。
SCG操作过程包括以下之一：添加SCG、修改SCG、释放SCG。
S436：UE在执行SCG操作过程之后，保持SCG挂起状态。
本发明实施例提供的切换小区的方法，通过向目标主节点发送辅小区组 SCG挂起状态信息，以及目标主节点通知目标辅节点所述UE处于SCG挂起状态，能够在UE发起SCG挂起的情况下，在发生切换时同步网络节点间的SCG状态。
具体来讲，MR-DC切换过程可以包括:
1.源主节点开始切换过程，向目标主节点发送切换请求消息(Handover Request)。可选地，上述步骤S412中的SCG挂起状态信息可以携带于该切换请求消息中。
2.目标主节点发送辅节点增加请求消息(SN Addition Request)到目标辅节点。目标主节点可选地保留源辅节点，此时目标辅节点就是源辅节点。可选地，上述步骤S426中用于通知目标辅节点UE处于SCG挂起状态的信息可以携带于所述SN Addition Request中，即所述SN Addition Request中可以包含所述SCG挂起状态信息。
3.目标辅节点响应目标主节点增加请求响应消息(SN Addition Request Acknowledge)；
4.目标主节点发送切换请求确认消息(Handover Request Acknowledge message)到源主节点。
5.源主节点释放源辅节点。
6.在上述步骤S414中，源主节点发送切换配置消息到UE执行切换，在上述步骤S432中，UE在SCG挂起状态下，接收切换配置消息。
7/8.在上述步骤S434中，UE在SCG挂起状态下，根据所述切换配置消息，执行SCG操作过程，例如UE同步到目标主节点，发送重配完成消息。
9.可选地，UE接入目标辅节点。
10.目标主节点通知目标辅节点重配完成。
11.可选地，源主节点发送辅节点状态传输消息(SN StatusTransfer)给目标主节点。目标主节点将辅节点状态(SN Status)转至目标辅节点。可选地，上述步骤S412中的SCG挂起状态信息也可以携带于该切换请求消息中。
12/13.目标主节点发起UE Context Release过程。
以下举一些实例对上述步骤进行具体举例说明。
在例1中，可以在切换请求中通知SCG挂起，切换过程可以包括:
0.UE处于连接状态，SCG连接已建立。
UE向网络上报辅小区组挂起(SCG Suspend)。
所述网络接收到辅小区组挂起信息后，所述网络不能通过SCG连接收发信息。
所述UE处于连接模式。
所述辅小区组挂起，包括但不限于：
SCG处于挂起状态(SCG Suspend)；
SCG连接被UE发起的SCG挂起过程挂起(UE initiated SCG Suspend)；
UE挂起已建立的SCG连接；(UE SCG Suspend)
UE未建立SCG连接，但UE暂时挂起MR-DC能力；(UE SCG Capability Suspend)
UE未建立SCG连接，但UE暂时挂起MR-DC终端资源；(UE SCG Resource Suspend)
SCG处于多卡挂起状态(SCG Suspend by Multi-SIM)。
1.源主节点发起切换过程，源主节点向目标主节点发送切换请求消息(Handover Request)。
所述SCG挂起状态信息，包括但不限于：
SCG挂起状态(SCG Suspend)
SCG连接被UE发起的SCG挂起过程挂起(UE initiated SCG Suspend)；
UE暂时挂起MR-DC能力(UE SCG Capability Suspend)
UE暂时挂起MR-DC终端资源(UE SCG Resource Suspend)
SCG Suspend by Multi-SIM。
可选地，上述步骤S412中，源主节点在所述切换请求消息Handover  Request中携带SCG挂起状态信息。所述SCG挂起状态信息可以包含在Handover Request消息的UE上下文信息(UE Context Information)信元中。
2.目标主节点发送SN Addition Request到目标辅节点。在上述步骤S426中，所述SN Addition Request可以包含所述SCG挂起状态信息以通知目标辅节点所述UE处于SCG挂起状态。
目标辅节点发送响应SN Addition Request Acknowledge消息到目标主节点。
3.在上述步骤S414中，源主节点发送切换配置消息到UE执行切换。所述切换配置消息包含SCG配置信息。
4.在上述步骤S432中，UE接收切换配置消息。可选地，在上述步骤S436中，网络可以配置UE保持SCG挂起状态。在上述步骤S434中，UE在SCG挂起状态下，根据所述切换配置消息，执行SCG操作过程，例如UE同步到目标主节点，发送重配完成消息。
5.可选地，UE同步或测量目标辅节点。
在例2中，可以由SN Status Transfer通知SCG挂起，切换过程可以包括:
1.UE处于连接状态，SCG连接已建立。
UE向网络上报辅小区组挂起(SCG Suspend)。
所述网络接收到辅小区组挂起信息后，所述网络不能通过SCG连接收发信息。
所述UE处于连接模式。
所述辅小区组挂起，包括但不限于：
SCG处于挂起状态(SCG Suspend)；
SCG连接被UE发起的SCG挂起过程挂起(UE initiated SCG Suspend)；
UE挂起已建立的SCG连接；(UE SCG Suspend)；
UE未建立SCG连接，但UE暂时挂起MR-DC能力；(UE SCG Capability Suspend)
UE未建立SCG连接，但UE暂时挂起MR-DC终端资源。(UE SCG Resource Suspend)；
SCG Suspend by Multi-SIM。
2.网络发起切换过程。在上述步骤S432中，UE接收切换配置消息RRCReconfiguration Message。可选地，所述切换配置消息包含SCG配置。在上述步骤S434中，UE在SCG挂起状态下，根据所述切换配置消息，执行SCG操作过程，例如UE发送重配置完成消息。可选地，在上述步骤S436中，网络配置UE保持SCG挂起。
3.源辅节点向源主节点发送SN Status Transfer消息。所述SN Status Transfer包含SCG挂起状态信息。
所述SCG挂起状态信息，包括但不限于：
SCG挂起状态(SCG Suspend)；
SCG连接被UE发起的SCG挂起过程挂起(UE initiated SCG Suspend)；
UE暂时挂起MR-DC能力。(UE SCG Capability Suspend)；
UE暂时挂起MR-DC终端资源。(UE SCG Resource Suspend)；
SCG Suspend by Multi-SIM；
4.源主节点发送SN Status Transfer消息到目标主节点。所述SN Status Transfer包含SCG挂起状态信息。即上述步骤S412中的SCG挂起状态信息可以携带于SN Status Transfer中。
5.目标主节点接收SN Status Transfer消息。
6.可选地，目标主节点发送SN Status Transfer消息到目标辅节点。上述步骤S426中用于通知目标辅节点UE处于SCG挂起状态的信息可以携带于所述SN Status Transfer，即所述SN Status Transfer包含SCG挂起状态信息。
在例3中，SCG连接未建立时的切换过程可以包括:
1.UE处于连接状态，未建立SCG连接。
UE向网络上报辅小区组挂起(SCG Suspend)。
所述网络接收到辅小区组挂起信息后，所述网络不能通过SCG连接收发信息。所述UE处于连接模式。
所述辅小区组挂起，包括但不限于：
SCG挂起状态(SCG Suspend)；
UE暂时挂起MR-DC能力。(UE SCG Capability Suspend)
UE暂时挂起MR-DC终端资源，如终端物理层资源。(UE SCG Resource Suspend)
SCG Suspend by Multi-SIM。
2.源主节点发起切换过程，源主节点向目标主节点发送切换请求消息Handover Request。
所述SCG挂起状态信息，包括但不限于：
SCG挂起状态(SCG Suspend)
UE暂时挂起MR-DC能力。(UE SCG Capability Suspend)
UE暂时挂起MR-DC终端资源，如终端物理层资源。(UE SCG Resource Suspend)
SCG Suspend by Multi-SIM。
可选地，上述步骤S412中，源主节点在所述切换请求消息Handover Request中携带SCG挂起状态信息。所述SCG挂起状态信息可以包含在Handover Request消息的UE上下文信息(UE Context Information)信元中。
3.在上述步骤S414中，源主节点发送切换配置消息到UE执行切换。所述切换配置消息可选地包含SCG配置信息。
4.在上述步骤S432中，UE接收切换配置消息。可选地，在上述步骤S436中，UE保持SCG挂起状态。在上述步骤S434中，UE在SCG挂起状态下，根据所述切换配置消息，执行SCG操作过程，例如UE同步到目标主节点，发送重配完成消息。
以上步骤中，从网络设备侧描述的网络设备与终端设备的交互与终端设 备侧的描述相同，为避免重复，适当省略相关描述。
需要说明的是，本申请实施例提供的切换小区的方法，执行主体可以为切换小区的装置，或者该装置中的用于执行加载上述方法的控制模块。本申请实施例中以切换小区的装置执行加载切换小区的方法为例，说明本申请实施例提供的切换小区的方法。
图5是根据本发明实施例的切换小区的装置的结构示意图。如图5所示，切换小区的装置500包括：发送模块510和确定模块520。
发送模块510用于向目标节点发送辅小区组SCG挂起状态信息，其中，所述SCG挂起状态信息用于指示UE处于SCG挂起状态。
在一种实现方式中，所述发送模块510还用于：在所述向目标节点发送辅小区组SCG挂起状态信息之后，向所述UE发送切换配置消息。
在一种实现方式中，所述SCG处于挂起状态下，所述切换配置消息用于以下之一：添加SCG、修改SCG、释放SCG。
在一种实现方式中，所述SCG挂起状态包括以下状态中的至少一者：
UE发起的SCG挂起；
SCG去使能；
双连接能力挂起；
双连接能力去使能；
SCG资源挂起；
SCG资源去使能；
SCG连接去激活；
SCG连接释放。
在一种实现方式中，所述SCG挂起状态信息包含在切换请求消息或辅节点状态传输消息中。
在一种实现方式中，确定模块520用于在向目标节点发送辅小区组SCG挂起状态信息之前，确定辅小区组SCG挂起状态信息。
本申请实施例中的切换小区的装置可以是装置，也可以是终端中的部件、集成电路、或芯片。该装置可以是移动电子设备，也可以为非移动电子设备。示例性的，移动电子设备可以为手机、平板电脑、笔记本电脑、掌上电脑、车载电子设备、可穿戴设备、超级移动个人计算机(ultra-mobile personal computer，UMPC)、上网本或者个人数字助理(personal digital assistant，PDA)等，非移动电子设备可以为服务器、网络附属存储器(Network Attached Storage，NAS)、个人计算机(personal computer，PC)、电视机(television，TV)、柜员机或者自助机等，本申请实施例不作具体限定。
本申请实施例中的切换小区的装置可以为具有操作系统的装置。该操作系统可以为安卓(Android)操作系统，可以为ios操作系统，还可以为其他可能的操作系统，本申请实施例不作具体限定。
根据本发明实施例的装置500可以参照对应本发明实施例的方法200-400中源节点的流程，并且，该装置500中的各个单元/模块和上述其他操作和/或功能分别为了实现方法200-400中的相应流程，并且能够达到相同或等同的技术效果，为了简洁，在此不再赘述。
图6是根据本发明实施例的切换小区的装置的结构示意图。如图6所示，切换小区的装置600包括：处理模块610和同步模块620。
处理模块610用于接收源节点发送的SCG挂起状态信息，其中，所述SCG挂起状态信息用于指示UE处于SCG挂起状态。
在一种实现方式中，所述处理模块610还用于：在所述接收源节点发送的SCG挂起状态信息之后，保持所述UE处于所述SCG挂起状态。
在一种实现方式中，在所述目标节点为目标主节点的情况下，所述处理模块610还用于：在所述接收源节点发送的UE发起的辅小区组SCG挂起状态信息之后，通知目标辅节点所述UE处于SCG挂起状态。
在一种实现方式中，用于通知目标辅节点所述UE处于SCG挂起状态的信息包含在辅节点添加请求消息中。
在一种实现方式中，所述SCG挂起状态包括以下状态中的至少一者：
UE发起的SCG挂起；
SCG去使能；
双连接能力挂起；
双连接能力去使能；
SCG资源挂起；
SCG资源去使能；
SCG连接去激活；
SCG连接释放。
在一种实现方式中，所述SCG挂起状态信息包含在切换请求消息或辅节点状态传输消息中。
本申请实施例中的切换小区的装置可以是装置，也可以是终端中的部件、集成电路、或芯片。该装置可以是移动电子设备，也可以为非移动电子设备。示例性的，移动电子设备可以为手机、平板电脑、笔记本电脑、掌上电脑、车载电子设备、可穿戴设备、超级移动个人计算机(ultra-mobile personal computer，UMPC)、上网本或者个人数字助理(personal digital assistant，PDA)等，非移动电子设备可以为服务器、网络附属存储器(Network Attached Storage，NAS)、个人计算机(personal computer，PC)、电视机(television，TV)、柜员机或者自助机等，本申请实施例不作具体限定。
本申请实施例中的切换小区的装置可以为具有操作系统的装置。该操作系统可以为安卓(Android)操作系统，可以为ios操作系统，还可以为其他可能的操作系统，本申请实施例不作具体限定。
根据本发明实施例的装置600可以参照对应本发明实施例的方法200-400中目标节点的流程，并且，该装置600中的各个单元/模块和上述其他操作和/或功能分别为了实现方法200-400中的相应流程，并且能够达到相同或等同的技术效果，为了简洁，在此不再赘述。
图7是根据本发明实施例的切换小区的装置的结构示意图。如图7所示，切换小区的装置700包括：接收模块710、操作模块720和保持模块730。
接收模块710用于在SCG挂起状态下，接收切换配置消息。
操作模块720用于在所述在SCG挂起状态下，接收切换配置消息之后，在SCG挂起状态下，根据所述切换配置消息执行SCG操作过程，包括以下之一：添加SCG、修改SCG、释放SCG。
保持模块730用于保持所述SCG挂起状态。
在一种实现方式中，所述SCG挂起状态包括以下状态中的至少一者：
UE发起的SCG挂起；
SCG去使能；
双连接能力挂起；
双连接能力去使能；
SCG资源挂起；
SCG资源去使能；
SCG连接去激活；
SCG连接释放。
本申请实施例中的切换小区的装置可以是装置，也可以是终端中的部件、集成电路、或芯片。该装置可以是移动电子设备，也可以为非移动电子设备。示例性的，移动电子设备可以为手机、平板电脑、笔记本电脑、掌上电脑、车载电子设备、可穿戴设备、超级移动个人计算机(ultra-mobile personal computer，UMPC)、上网本或者个人数字助理(personal digital assistant，PDA)等，非移动电子设备可以为服务器、网络附属存储器(Network Attached Storage，NAS)、个人计算机(personal computer，PC)、电视机(television，TV)、柜员机或者自助机等，本申请实施例不作具体限定。
本申请实施例中的切换小区的装置可以为具有操作系统的装置。该操作系统可以为安卓(Android)操作系统，可以为ios操作系统，还可以为其他 可能的操作系统，本申请实施例不作具体限定。
根据本发明实施例的装置700可以参照对应本发明实施例的方法200-400中目标节点的流程，并且，该装置700中的各个单元/模块和上述其他操作和/或功能分别为了实现方法200-400中的相应流程，并且能够达到相同或等同的技术效果，为了简洁，在此不再赘述。
具体地，本申请实施例还提供了一种网络侧设备。如图8所示，该网络设备900包括：天线901、射频装置902、基带装置903。天线901与射频装置902连接。在上行方向上，射频装置902通过天线901接收信息，将接收的信息发送给基带装置903进行处理。在下行方向上，基带装置903对要发送的信息进行处理，并发送给射频装置902，射频装置902对收到的信息进行处理后经过天线901发送出去。
上述频带处理装置可以位于基带装置903中，以上实施例中网络侧设备执行的方法可以在基带装置903中实现，该基带装置903包括处理器904和存储器905。
基带装置903例如可以包括至少一个基带板，该基带板上设置有多个芯片，如图所示，其中一个芯片例如为处理器904，与存储器905连接，以调用存储器905中的程序，执行以上方法实施例中所示的网络设备操作。
该基带装置903还可以包括网络接口906，用于与射频装置902交互信息，该接口例如为通用公共无线接口(common public radio interface，简称CPRI)。
具体地，本发明实施例的网络侧设备还包括：存储在存储器905上并可在处理器904上运行的指令或程序，处理器904调用存储器905中的指令或程序执行：向目标节点发送辅小区组SCG挂起状态信息，其中，所述SCG挂起状态信息用于指示UE处于SCG挂起状态。
在一种实现方式中，在所述向目标节点发送辅小区组SCG挂起状态信息之后，向所述UE发送切换配置消息。
在一种实现方式中，所述SCG处于挂起状态下，所述切换配置消息用于以下之一：添加SCG、修改SCG、释放SCG。
在一种实现方式中，所述SCG挂起状态包括以下状态中的至少一者：
UE发起的SCG挂起；
SCG去使能；
双连接能力挂起；
双连接能力去使能；
SCG资源挂起；
SCG资源去使能；
SCG连接去激活；
SCG连接释放。
在一种实现方式中，所述SCG挂起状态信息包含在切换请求消息或辅节点状态传输消息中。
或者，处理器904调用存储器905中的指令或程序执行：接收源节点发送的SCG挂起状态信息，其中，所述SCG挂起状态信息用于指示UE处于SCG挂起状态。
在一种实现方式中，在所述接收源节点发送的SCG挂起状态信息之后，所述方法还包括：保持所述UE处于所述SCG挂起状态。
在一种实现方式中，所述目标节点为目标主节点，在所述接收源节点发送的UE发起的辅小区组SCG挂起状态信息之后，所述方法还包括：通知目标辅节点所述UE处于SCG挂起状态。
在一种实现方式中，用于通知目标辅节点所述UE处于SCG挂起状态的信息包含在辅节点添加请求消息中。
在一种实现方式中，所述SCG挂起状态包括以下状态中的至少一者：
UE发起的SCG挂起；
SCG去使能；
双连接能力挂起；
双连接能力去使能；
SCG资源挂起；
SCG资源去使能；
SCG连接去激活；
SCG连接释放。
在一种实现方式中，所述SCG挂起状态信息包含在切换请求消息或辅节点状态传输消息中。
处理器904执行的具体步骤如图200-400中目标节点或源节点的流程，所示各步骤执行的方法，并达到相同的技术效果，为避免重复，故不在此赘述。
图9为实现本申请实施例的一种终端设备的硬件结构示意图。
该终端设备1000包括但不限于：射频单元1001、网络模块1002、音频输出单元1003、输入单元1004、传感器1005、显示单元1006、用户输入单元1007、接口单元1008、存储器1009、以及处理器1010等部件。
本领域技术人员可以理解，终端设备1000还可以包括给各个部件供电的电源(比如电池)，电源可以通过电源管理系统与处理器1010逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图中示出的终端设备结构并不构成对终端设备的限定，终端设备可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置，在此不再赘述。
应理解的是，本申请实施例中，输入单元1004可以包括图形处理器(Graphics Processing Unit，GPU)10041和麦克风10042，图形处理器10041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元1006可包括显示面板10061，可以采用液晶显示器、有机发光二极管等形式来配置显示面板10061。用户输入单元1007包括触控面板10071以及其他输入设备10072。触控面板10071， 也称为触摸屏。触控面板10071可包括触摸检测装置和触摸控制器两个部分。其他输入设备10072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
本申请实施例中，射频单元1001将来自网络侧设备的下行数据接收后，给处理器1010处理；另外，将上行的数据发送给网络侧设备。通常，射频单元1001包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器1009可用于存储软件程序或指令以及各种数据。存储器1009可主要包括存储程序或指令区和存储数据区，其中，存储程序或指令区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外，存储器1009可以包括高速随机存取存储器，还可以包括非易失性存储器，其中，非易失性存储器可以是只读存储器(Read-OnlyMemory，ROM)、可编程只读存储器(ProgrammableROM，PROM)、可擦除可编程只读存储器(ErasablePROM，EPROM)、电可擦除可编程只读存储器(ElectricallyEPROM，EEPROM)或闪存。例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。
处理器1010可包括一个或多个处理单元；可选的，处理器1010可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序或指令等，调制解调处理器主要处理无线通信，如基带处理器。可以理解的是，上述调制解调处理器也可以不集成到处理器1010中。
其中，处理器1010，用于在SCG挂起状态下，接收切换配置消息；
在SCG挂起状态下，根据所述切换配置消息执行SCG操作过程，包括以下之一：添加SCG、修改SCG、释放SCG；在根据所述切换配置消息，执行SCG操作过程之后，保持SCG挂起状态。
在一种实现方式中，所述SCG挂起状态包括以下状态中的至少一者：
UE发起的SCG挂起；
SCG去使能；
双连接能力挂起；
双连接能力去使能；
SCG资源挂起；
SCG资源去使能；
SCG连接去激活；
SCG连接释放。根据本发明实施例的终端设备1000可以参照对应本发明实施例的方法300-400中UE的流程，并且，该终端设备1000中的各个单元/模块和上述其他操作和/或功能分别为了实现方法300-400中UE的流程，并且能够达到相同或等同的技术效果，为了简洁，在此不再赘述。
本申请实施例还提供一种可读存储介质，所述可读存储介质上存储有程序或指令，该程序或指令被处理器执行时实现上述切换小区的方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
其中，所述处理器为上述实施例中所述的电子设备中的处理器。所述可读存储介质，包括计算机可读存储介质，如计算机只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。
本申请实施例另提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现上述切换小区的方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片、系统芯片、芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序产品，该计算机程序产品包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (31)

  1. 一种切换小区的方法，其中，所述方法由源节点执行，所述方法包括：
    向目标节点发送辅小区组SCG挂起状态信息，其中，所述SCG挂起状态信息用于指示用户设备UE处于SCG挂起状态。
  2. 如权利要求1所述的方法，其中，在所述向目标节点发送辅小区组SCG挂起状态信息之后，所述方法还包括：
    向所述UE发送切换配置消息。
  3. 如权利要求2所述的方法，其中，所述切换配置消息包括以下之一：添加SCG、修改SCG、释放SCG。
  4. 如权利要求1所述的方法，其中，所述SCG挂起状态包括以下状态中的至少一者：
    UE发起的SCG挂起；
    SCG去使能；
    双连接能力挂起；
    双连接能力去使能；
    SCG资源挂起；
    SCG资源去使能；
    SCG连接去激活；
    SCG连接释放。
  5. 如权利要求1所述的方法，其中，所述SCG挂起状态信息包含在切换请求消息或辅节点状态传输消息中。
  6. 一种切换小区的方法，其中，所述方法由目标节点执行，所述方法包括：
    接收源节点发送的SCG挂起状态信息，其中，所述SCG挂起状态信息用于指示UE处于SCG挂起状态。
  7. 如权利要求6所述的方法，其中，在所述接收源节点发送的SCG挂 起状态信息之后，所述方法还包括：
    保持所述UE处于所述SCG挂起状态。
  8. 如权利要求6所述的方法，其中，所述目标节点为目标主节点，在所述接收源节点发送的SCG挂起状态信息之后，所述方法还包括：
    通知目标辅节点所述UE处于SCG挂起状态。
  9. 如权利要求8所述的方法，其中，用于通知目标辅节点所述UE处于SCG挂起状态的信息包含在辅节点添加请求消息中。
  10. 如权利要求6所述的方法，其中，所述SCG挂起状态包括以下状态中的至少一者：
    UE发起的SCG挂起；
    SCG去使能；
    双连接能力挂起；
    双连接能力去使能；
    SCG资源挂起；
    SCG资源去使能；
    SCG连接去激活；
    SCG连接释放。
  11. 如权利要求6所述的方法，其中，所述SCG挂起状态信息包含在切换请求消息或辅节点状态传输消息中。
  12. 一种切换小区的方法，其中，所述方法由用户设备执行，所述方法包括：
    在SCG挂起状态下，接收切换配置消息；
    在SCG挂起状态下，根据所述切换配置消息，执行SCG操作过程，包括以下之一：添加SCG、修改SCG、释放SCG；
    保持所述SCG挂起状态。
  13. 如权利要求12所述的方法，其中，所述SCG挂起状态包括以下状 态中的至少一者：
    UE发起的SCG挂起；
    SCG去使能；
    双连接能力挂起；
    双连接能力去使能；
    SCG资源挂起；
    SCG资源去使能；
    SCG连接去激活；
    SCG连接释放。
  14. 一种切换小区的装置，其中，所述装置包括：
    发送模块，用于向目标节点发送辅小区组SCG挂起状态信息，其中，所述SCG挂起状态信息用于指示UE处于SCG挂起状态。
  15. 如权利要求14所述的装置，其中，所述发送模块还用于：
    在所述向目标节点发送辅小区组SCG挂起状态信息之后，向所述UE发送切换配置消息。
  16. 如权利要求15所述的装置，其中，所述SCG处于挂起状态下，所述切换配置消息用于添加SCG、修改SCG、释放SCG。
  17. 如权利要求14所述的装置，其中，所述SCG挂起状态包括以下状态中的至少一者：
    UE发起的SCG挂起；
    SCG去使能；
    双连接能力挂起；
    双连接能力去使能；
    SCG资源挂起；
    SCG资源去使能；
    SCG连接去激活；
    SCG连接释放。
  18. 如权利要求14所述的装置，其中，所述SCG挂起状态信息包含在切换请求消息或辅节点状态传输消息中。
  19. 一种切换小区的装置，其中，所述装置包括：
    处理模块，用于接收源节点发送的SCG挂起状态信息，其中，所述SCG挂起状态信息用于指示UE处于SCG挂起状态。
  20. 如权利要求19所述的装置，其中，所述处理模块还用于：在所述接收源节点发送的SCG挂起状态信息之后，保持所述UE处于所述SCG挂起状态。
  21. 如权利要求19所述的装置，其中，在所述目标节点为目标主节点的情况下，所述处理模块还用于：
    在所述接收源节点发送的UE发起的辅小区组SCG挂起状态信息之后，通知目标辅节点所述UE处于SCG挂起状态。
  22. 如权利要求21所述的装置，其中，用于通知目标辅节点所述UE处于SCG挂起状态的信息包含在辅节点添加请求消息中。
  23. 如权利要求19所述的装置，其中，所述SCG挂起状态包括以下状态中的至少一者：
    UE发起的SCG挂起；
    SCG去使能；
    双连接能力挂起；
    双连接能力去使能；
    SCG资源挂起；
    SCG资源去使能；
    SCG连接去激活；
    SCG连接释放。
  24. 如权利要求19所述的装置，其中，所述SCG挂起状态信息包含在 切换请求消息或辅节点状态传输消息中。
  25. 一种切换小区的装置，其中，所述装置包括：
    接收模块，用于在SCG挂起状态下，接收切换配置消息；操作模块，用于在所述在SCG挂起状态下，根据所述切换配置消息，执行SCG操作过程，包括以下之一：添加SCG、修改SCG、释放SCG；
    保持模块，用于保持所述SCG挂起状态。
  26. 如权利要求25所述的装置，其中，所述SCG挂起状态包括以下状态中的至少一者：
    UE发起的SCG挂起；
    SCG去使能；
    双连接能力挂起；
    双连接能力去使能；
    SCG资源挂起；
    SCG资源去使能；
    SCG连接去激活；
    SCG连接释放。
  27. 一种网络设备，其中，包括处理器，存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求1-5中任一项所述的切换小区的方法的步骤；或者
    实现如权利要求6-11中任一项所述的切换小区的方法的步骤。
  28. 一种终端设备，其中，包括处理器，存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求12-13中任一项所述的切换小区的方法的步骤。
  29. 一种可读存储介质，其中，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如权利要求1-5中任一项所述的切换小区的方法的步骤；或者
    实现如权利要求6-11中任一项所述的切换小区的方法的步骤；或者
    实现如权利要求12-13中任一项所述的切换小区的方法的步骤。
  30. 一种芯片，其中，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如权利要求1-5中任一项所述的切换小区的方法的步骤；或者
    实现如权利要求6-11中任一项所述的切换小区的方法的步骤；或者
    实现如权利要求12-13中任一项所述的切换小区的方法的步骤。
  31. 一种计算机程序产品，其中，所述计算机程序产品包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求1-5中任一项所述的切换小区的方法的步骤；或者
    实现如权利要求6-11中任一项所述的切换小区的方法的步骤；或者
    实现如权利要求12-13中任一项所述的切换小区的方法的步骤。
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