WO2024027450A1 - Procédé et dispositif de maintien d'un nœud secondaire inchangé - Google Patents

Procédé et dispositif de maintien d'un nœud secondaire inchangé Download PDF

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Publication number
WO2024027450A1
WO2024027450A1 PCT/CN2023/105788 CN2023105788W WO2024027450A1 WO 2024027450 A1 WO2024027450 A1 WO 2024027450A1 CN 2023105788 W CN2023105788 W CN 2023105788W WO 2024027450 A1 WO2024027450 A1 WO 2024027450A1
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WIPO (PCT)
Prior art keywords
node
source
indication information
message
secondary node
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PCT/CN2023/105788
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English (en)
Chinese (zh)
Inventor
倪春林
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大唐移动通信设备有限公司
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Publication of WO2024027450A1 publication Critical patent/WO2024027450A1/fr

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Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • 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
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters
    • H04W36/28—Reselection being triggered by specific parameters by agreed or negotiated communication parameters involving a plurality of connections, e.g. multi-call or multi-bearer connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections

Definitions

  • the present disclosure relates to the field of communication technology, and in particular, to a method and device for keeping a secondary node unchanged.
  • Conditional Handover (CHO) is defined in the New Radio (NR) standard.
  • the network pre-configures a certain number of cells for the terminal (User Equipment, UE) in advance as candidate cells for UE handover, and configures certain handover conditions.
  • the UE After receiving the configuration information, the UE detects the candidate target cell according to the configuration execution conditions and configuration information. When any target cell meets the configured execution conditions, the UE performs conditional handover.
  • configuration can also be performed for UEs that have configured dual connectivity (Dual Connectivity, DC).
  • DC Dual Connectivity
  • the target MN cannot add the source SN as the SN node that provides services to the terminal during the execution phase, which may cause The handover fails, thus reducing the handover efficiency.
  • Embodiments of the present disclosure provide a method and device for keeping a secondary node unchanged, so as to solve the problem in related mechanisms that when switching a dual-connection terminal, the target master node MN and the source slave node SN are not configured in pairs to provide the terminal with In the case of service, the MN cannot actively add the source SN node to provide services for the terminal.
  • embodiments of the present disclosure provide a method for keeping a secondary node unchanged, which is applied to a terminal and includes:
  • the primary node in the pairing group to which the terminal is currently connected is the source primary node, and the secondary node is the source secondary node.
  • the pairing group includes a primary node and a secondary node.
  • the information before sending the first indication information to the target master node, the information includes:
  • Receive handover configuration information where the handover configuration information includes one or more pairing groups, and does not include a pairing group composed of the target master node and the source slave node.
  • the first indication information is sent through a Radio Resource Control RRC reconfiguration complete message.
  • the first indication information is indication information indicating retention of the source secondary node, or indication information indicating failure to access the secondary cell group SCG, or no SCG related information.
  • embodiments of the present disclosure also provide a method for keeping the secondary node unchanged, which is applied to the target master node, including:
  • a first message is sent to the source primary node; the first message is used to instruct the source secondary node to retain the connection between the terminal and the source secondary node through the source primary node.
  • sending the first message to the source master node based on the received first indication information includes:
  • the first message Based on the received first indication information, determine whether the first message carries second indication information, where the second indication information is used to indicate retaining terminal context information;
  • the first message is sent to the source master node.
  • the method after receiving the first indication information sent by the terminal, the method includes:
  • Send a second message to the source secondary node the second message is used to add the source secondary node to the target primary node to form a pairing group of the primary node and the secondary node;
  • the first message is a handover success message.
  • the second message is a secondary node addition request message.
  • the embodiment of the present disclosure also provides a method for keeping the secondary node unchanged, which is applied to the source primary node, including:
  • the first message carries the second indication information, and the second indication information is used to indicate retaining terminal context information.
  • the second indication information sent to the source secondary node is sent through a secondary node release request.
  • embodiments of the present disclosure also provide a terminal, including a memory, a transceiver, and a processor:
  • Memory used to store computer programs
  • transceiver used to send and receive data under the control of the processor
  • processor used to read the computer program in the memory and perform the following operations:
  • the primary node in the pairing group to which the terminal is currently connected is the source primary node, and the secondary node is the source secondary node.
  • the pairing group includes a primary node and a secondary node.
  • the information before sending the first indication information to the target master node, the information includes:
  • Receive handover configuration information where the handover configuration information includes one or more pairing groups, and does not include a pairing group composed of the target master node and the source slave node.
  • the first indication information is sent through a Radio Resource Control RRC reconfiguration complete message.
  • the first indication information is indication information indicating to reserve the source secondary node, or accessing the secondary node. Indication information of cell group SCG failure, or no SCG related information.
  • embodiments of the present disclosure also provide a target master node, including a memory, a transceiver, and a processor:
  • Memory used to store computer programs
  • transceiver used to send and receive data under the control of the processor
  • processor used to read the computer program in the memory and perform the following operations:
  • a first message is sent to the source primary node; the first message is used to instruct the source secondary node to retain the connection between the terminal and the source secondary node through the source primary node.
  • sending the first message to the source master node based on the received first indication information includes:
  • the first message Based on the received first indication information, determine whether the first message carries second indication information, where the second indication information is used to indicate retaining terminal context information;
  • the first message is sent to the source master node.
  • the method after receiving the first indication information sent by the terminal, the method includes:
  • Send a second message to the source secondary node the second message is used to add the source secondary node to the target primary node to form a pairing group of the primary node and the secondary node;
  • the first message is a handover success message.
  • the second message is a secondary node addition request message.
  • the embodiment of the present disclosure also provides a source master node, including a memory, a transceiver, and a processor:
  • Memory used to store computer programs
  • transceiver used to send and receive data under the control of the processor
  • processor used to read the computer program in the memory and perform the following operations:
  • the first message carries the second indication information, and the second indication information is used to indicate retaining terminal context information.
  • the second indication information sent to the source secondary node is sent through a secondary node release request.
  • embodiments of the present disclosure also provide a device for keeping a secondary node unchanged, which is applied to a terminal and includes:
  • the first sending module is configured to send first indication information to the target master node, where the first indication information is used to instruct to reserve the connection between the terminal and the source slave node;
  • the primary node in the pairing group to which the terminal is currently connected is the source primary node, and the secondary node is the source secondary node.
  • the pairing group includes a primary node and a secondary node.
  • the device further includes a first receiving module, used for:
  • Receive handover configuration information where the handover configuration information includes one or more pairing groups, and does not include a pairing group composed of the target master node and the source slave node.
  • the first indication information is sent through a Radio Resource Control RRC reconfiguration complete message.
  • the first indication information is indication information indicating retention of the source secondary node, or indication information indicating failure to access the secondary cell group SCG, or no SCG related information.
  • the embodiment of the present disclosure also provides a device for keeping the secondary node unchanged, which is applied to the target master node and includes:
  • a second receiving module configured to receive the first indication information sent by the terminal
  • the second sending module is configured to send a first message to the source primary node based on the received first indication information; the first message is used to instruct the source secondary node to reserve the terminal and the source secondary node through the source primary node. Connection.
  • the second sending module is specifically used to:
  • the first message Based on the received first indication information, determine whether the first message carries second indication information, where the second indication information is used to indicate retaining terminal context information;
  • the first message is sent to the source master node.
  • the second sending module is also configured to: send a second message to the source secondary node, and the second sending module The second message is used to add the source secondary node to the target primary node to form a pairing group of the primary node and the secondary node;
  • the second receiving module is further configured to: determine that the source secondary node is added successfully based on the received feedback message of the source secondary node.
  • the first message is a handover success message.
  • the second message is a secondary node addition request message.
  • the embodiment of the present disclosure also provides a device for keeping the secondary node unchanged, which is applied to the source primary node, including:
  • the third receiving module is used to receive the first message sent by the target master node
  • the third sending module is configured to send the second indication information to the source secondary node based on the received first message
  • the first message carries the second indication information, and the second indication information is used to indicate retaining terminal context information.
  • the second indication information sent to the source secondary node is sent through a secondary node release request.
  • embodiments of the present disclosure further provide a computer-readable storage medium storing a computer program, the computer program being used to cause the computer to perform the retention auxiliary process described in the first aspect.
  • an embodiment of the present disclosure also provides a communication device.
  • a computer program is stored in the communication device.
  • the computer program is used to cause the communication device to perform the keeping of the secondary node unchanged as described in the first aspect.
  • embodiments of the present disclosure also provide a processor-readable storage medium, the processor-readable storage medium stores a computer program, the computer program is used to cause the processor to execute the above-described first aspect.
  • embodiments of the present disclosure further provide a chip product.
  • a computer program is stored in the chip product.
  • the computer program is used to cause the chip product to execute the above-described first aspect.
  • the method and device for keeping the secondary node unchanged provided by the embodiments of the present disclosure, through the terminal under dual connection, during the handover execution phase, send the instruction information of retaining the terminal and the source secondary node to the target master node to realize the corresponding target master node Source and slave nodes can be added to form a pairing group, which increases the way to configure the pairing group and improves the efficiency of terminal switching.
  • Figure 1 is one of the flow diagrams of a method for keeping a secondary node unchanged provided by an embodiment of the present disclosure
  • Figure 2 is a second schematic flowchart of a method of keeping a secondary node unchanged provided by an embodiment of the present disclosure
  • Figure 3 is a third schematic flowchart of a method for keeping a secondary node unchanged provided by an embodiment of the present disclosure
  • Figure 4 is a schematic flowchart of the implementation of the method of keeping the secondary node unchanged provided by the embodiment of the present disclosure
  • Figure 5 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure.
  • Figure 6 is a schematic structural diagram of a target master node provided by an embodiment of the present disclosure.
  • Figure 7 is a schematic structural diagram of a source master node provided by an embodiment of the present disclosure.
  • Figure 8 is one of the structural schematic diagrams of a device for keeping an auxiliary node unchanged provided by an embodiment of the present disclosure
  • Figure 9 is a second structural schematic diagram of a device for keeping an auxiliary node unchanged provided by an embodiment of the present disclosure.
  • FIG. 10 is a third schematic structural diagram of a device for keeping an auxiliary node unchanged provided by an embodiment of the present disclosure.
  • the term "and/or” describes the association relationship of associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone. these three situations.
  • the character "/” generally indicates that the related objects are an "or” relationship. Tie.
  • the term “plurality” refers to two or more than two, and other quantifiers are similar to it.
  • Radio Bearer RB
  • the radio bearer (Radio Bearer, RB) of the user equipment UE is on the master cell group (Master Cell Group, MCG) managed by the master node MN.
  • This part of the RB includes the control plane bearer (Signaling Radio Bearer, SRB) and the user plane bearer ( Data Radio Bearer, DRB).
  • the other part of the same UE is carried on the secondary cell group (Secondary Cell Group, SCG) managed by the secondary node SN.
  • the node here is usually a base station, and the same UE is connected to two base stations at the same time, so it is called dual connectivity (DualConnectivity, DC).
  • Figure 1 is one of the flow diagrams of a method for keeping a secondary node unchanged provided by an embodiment of the present disclosure. This method can be applied to a terminal. As shown in Figure 1, the method includes:
  • Step 101 Send first indication information to the target master node, where the first indication information is used to instruct to retain the connection between the terminal and the source slave node;
  • the primary node in the pairing group to which the terminal is currently connected is the source primary node, and the secondary node is the source secondary node.
  • the pairing group includes a primary node and a secondary node.
  • the terminal has established a dual-connection DC.
  • cell switching may need to occur.
  • the network side will provide the terminal with dual-connection configuration information.
  • the dual-connection configuration information usually includes one or more pairing groups, each pairing group includes a primary node and a secondary node. If there is no pairing group of the source secondary node and the target primary node in the dual-connection configuration, the connection of the source secondary node may need to be retained when the terminal switches, causing the terminal switch to fail and reducing the efficiency of the switch. Therefore, the present disclosure does not perform the switch when performing the switch.
  • the terminal sends the first instruction information to the target master node, indicating that the target master node needs to retain the connection between the terminal and the source slave node, and then through the target master node
  • the interaction between the primary node and the source primary node achieves the purpose of adding the source secondary node to the target primary node.
  • the target primary node can add the source secondary node to dynamically adjust the pairing group. It is helpful to improve the switching efficiency of the terminal.
  • the source primary node and the source secondary node here are the two base stations or two cells that the terminal is connected to when establishing dual connectivity before the terminal is switched.
  • the target master node is the corresponding connection base station or cell after the terminal is switched, and is switched from the source master node to the target master node.
  • the source and slave nodes form a pairing group, which increases the way to configure the pairing group and improves the efficiency of terminal switching.
  • the information before sending the first indication information to the target master node, the information includes:
  • Receive handover configuration information where the handover configuration information includes one or more pairing groups, and does not include a pairing group composed of the target master node and the source slave node.
  • the primary node of the corresponding connection is the source primary node
  • the secondary node is the source secondary node.
  • the switching configuration information sent to the network includes one or more pairing groups, and each pairing group includes a primary node and a secondary node. And the above switching configuration information does not include the pairing group of the target primary node and the source secondary node. In this case, the terminal hopes to retain the connection between itself and the source slave node.
  • the target master node cannot add a slave node, and of course it is impossible to add the source slave node, then This may cause terminal switching to fail and reduce switching efficiency. Therefore, it is necessary to send first instruction information to the target master node during the handover stage, instructing to retain the connection between the terminal and the source slave node. Then, through the interaction between the target master node and the source master node, the connection between the reserved terminal and the source slave node is achieved.
  • the first indication information is sent through a Radio Resource Control (Radio Resource Control, RRC) reconfiguration completion message.
  • RRC Radio Resource Control
  • the terminal can send the first indication information to the target master node through a variety of ways.
  • the handover stage it is mainly implemented by using relevant signaling messages, such as the RRC reconfiguration complete message.
  • relevant signaling messages such as the RRC reconfiguration complete message.
  • a new field is added to the message to represent the above.
  • the first indication information can also be reset in the relevant fields. For example, some reserved fields are defined to represent the meaning indicated by the first indication information, that is, the connection between the terminal and the source secondary node is reserved.
  • the first indication information is indication information indicating retention of the source secondary node, or indication information indicating failure to access the SCG, or no SCG related information.
  • the RRC reconfiguration completion message sent by the terminal to the target master node usually carries the master node access information and may also carry information related to the secondary node.
  • the information related to the secondary node is the first indication information.
  • the first indication information may indicate the indication information of retaining the source secondary node, or the indication information of failure to access the secondary cell group SCG, or there is no SCG related information.
  • the instruction information here indicating to retain the secondary node is a direct instruction, informing the target primary node to retain the connection between the source secondary node and the terminal, thereby prompting the target primary node to add the source secondary node to form a pairing group.
  • the indication information of failure to access SCG, or the absence of SCG related information indicates that during the handover process, the terminal fails to access the target secondary node in the target pairing group according to the handover configuration information, and the terminal is informed indirectly.
  • the target primary node needs to retain the connection between the source secondary node and the terminal, otherwise the terminal switch may fail.
  • the source and slave nodes form a pairing group, which increases the way to configure the pairing group and improves the efficiency of terminal switching.
  • FIG. 2 is a second schematic flowchart of a method for keeping a secondary node unchanged provided by an embodiment of the present disclosure. As shown in Figure 2, this method is applied to a target master node and includes:
  • Step 201 Receive the first instruction information sent by the terminal
  • Step 202 Based on the received first indication information, send a first message to the source primary node; the first message is used to instruct the source secondary node to retain the connection between the terminal and the source secondary node through the source primary node.
  • the target master node can also add the source The secondary node.
  • the terminal sends first indication information to the target primary node.
  • the first indication information is used to instruct to retain the connection between the terminal and the source secondary node.
  • the target master node sends the first message to the source master node, and realizes the connection between the reserved terminal and the source slave node through the interaction between the source master node and the source slave node in the source pairing group (source master node and source slave node).
  • the source and slave nodes form a pairing group, which increases the way to configure the pairing group and improves the efficiency of terminal switching.
  • sending the first message to the source master node based on the received first indication information includes:
  • the first message Based on the received first indication information, determine whether the first message carries second indication information, where the second indication information is used to indicate retaining terminal context information;
  • the first message is sent to the source master node.
  • the target master node determines whether the second indication information needs to be carried in the first message sent to the source master node, that is, whether it carries an indication to retain the terminal context information.
  • the second indication information needs to be carried in the first message and sent to the source primary node.
  • the first message of the second indication information may be a related signaling message between the source master node and the target master node, that is, adding a new field in the relevant signaling message to represent the second indication information, or redefining the original field, For example, for some reserved fields, the meaning they represent is defined to be the meaning indicated by the second indication information, that is, terminal context information is reserved.
  • the indication information is used to inform the source primary node to retain the connection between the terminal and the source secondary node.
  • the first message is commonly used as a handover success message.
  • the method after receiving the first indication information sent by the terminal, the method includes:
  • Send a second message to the source secondary node the second message is used to add the source secondary node to the target primary node to form a pairing group of the primary node and the secondary node;
  • the target primary node after receiving the first indication information sent by the terminal, the target primary node attempts to add the source secondary node and sends a second message to the source secondary node.
  • the second message may include the identification of the connection channel between the target terminal and the source secondary node. Information, such as SN UE XnAP ID.
  • receive the feedback message from the source auxiliary node and based on the feedback message, determine whether the source auxiliary node is added successfully. If the target master node successfully adds the source slave node, the corresponding target master node sends the first message to the source master node.
  • the above-mentioned second message may be a related signaling message between the source slave node and the target master node.
  • the new field in the related signaling message indicates the meaning or the function is to add the source slave node to
  • the target master node forms a pairing group of the master node and the slave node, or redefines the original fields, such as some reserved fields, and defines the meaning or function of the source slave node to the target master node.
  • the source secondary master node is added through the second information to prepare for realizing the connection between the reserved terminal and the source secondary node.
  • the first message is commonly used as the second message to add a request message for the secondary node.
  • the source and slave nodes form a pairing group, which increases the way to configure the pairing group and improves the efficiency of terminal switching.
  • Figure 3 is the third schematic flowchart of the method of keeping the secondary node unchanged provided by the embodiment of the present disclosure. As shown in Figure 3, this method is applied to the source primary node, including
  • Step 301 Receive the first message sent by the target master node
  • Step 302 Based on the received first message, send the second indication information to the source secondary node;
  • the second indication information is used to indicate retaining terminal context information.
  • the terminal under dual connection needs to retain the connection between itself and the source secondary node during the handover execution process, it sends the first indication information to the target primary node to instruct to retain the connection between the terminal and the source secondary node.
  • Connection Based on the first indication information, the target master node determines that the first message sent to the source master node includes the second indication information. On the contrary, if the message sent by the terminal to the target master node does not include the first indication information, then the first message sent by the target master node to the source master node also does not carry the second indication information.
  • the source primary node receives the first message carrying the second indication information, determines that the connection between the terminal and the source secondary node needs to be retained, and then sends the second indication information to the source secondary node to inform or instruct the source secondary node that the terminal context needs to be retained, Make the source slave node not to release the connection with the terminal.
  • the source and slave nodes form a pairing group, which increases the way to configure the pairing group and improves the efficiency of terminal switching.
  • the second indication information sent to the source secondary node is sent through a secondary node release request.
  • the source and slave nodes form a pairing group, which increases the way to configure the pairing group and improves the efficiency of terminal switching.
  • Example 1 How to keep the SN unchanged when there is no pre-configuration during the conditional switching execution phase
  • Figure 4 is a schematic flowchart of the implementation of the method of keeping the secondary node unchanged provided by the embodiment of the present disclosure. As shown in Figure 4, in the case where the pairing group of the target primary node and the source secondary node is not pre-configured, the terminal executes conditional switching
  • the overall process of keeping the secondary node unchanged at this stage includes:
  • Step 1 The source MN sends a handover request message to the target MN, which carries a conditional handover indication.
  • MCG and SCG configuration information source SN related information, including the SN UE XnAP ID of the source SN.
  • Steps 2 to 3a The target MN adds a certain SN as an alternative SN; here, the alternative SN added by the target MN does not include the source SN;
  • Step 4 The target MN replies to the source MN with a handover request confirmation message, which includes information about the target MN and the target SN. It does not include the UE context reservation indication and the dual connection establishment information of the target MN and source SN.
  • Step 5 The source MN sends an RRC reconfiguration message to the UE, including the conditional handover configuration.
  • Step 6 The UE replies with a reconfiguration completion message.
  • Step 7 The UE determines that the conditional handover execution conditions of the candidate target MN are met.
  • Step 8 After the execution conditions of the target MN are met, the UE initiates a random access process to the target MN.
  • Step 9 The UE sends a reconfiguration completion message to the target MN, including the MN access information and optionally carrying the source SN reservation indication, or carrying the MN access information and the SCG failure indication, or carrying only the MN access information.
  • Step 10 The target MN decides to keep the source SN according to the instructions in step 9, initiates an SN add request process to the source SN to establish a dual connection, and carries the SN UE XnAP ID of the source SN.
  • Step 11 The source SN replies with an addition confirmation message. After the addition is successful, a pairing group of the target MN and the source SN is formed.
  • Step 12 The target MN sends a handover success message to the source MN, carrying the UE context retention indication, and informs the source SN through the source MN not to release the connection with the terminal.
  • Step 13 The source MN sends an SN release request message to the source SN, carrying the UE context retention indication.
  • the source MN directly instructs the source SN to retain the UE context.
  • Step 14 The source SN replies with a confirmation message without releasing the connection between the terminal and the source SN.
  • Figure 5 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure. As shown in Figure 5, the terminal includes a memory 501, a transceiver 502, and a processor 503, where:
  • the memory 501 is used to store computer programs; the transceiver 502 is used to send and receive data under the control of the processor 503.
  • the transceiver 502 is used to receive and send data under the control of the processor 503.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 503 and various circuits of the memory represented by memory 501 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein.
  • the bus interface provides the interface.
  • the transceiver 502 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
  • the user interface 504 can also be an interface capable of externally connecting internal and external required equipment.
  • the connected equipment includes but is not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.
  • the processor 503 is responsible for managing the bus architecture and general processing, and the memory 501 can store data used by the processor 503 when performing operations.
  • the processor 503 can be a central processing unit (Central Processing Unit, CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable Logic device (Complex Programmable Logic Device, CPLD), the processor can also adopt a multi-core architecture.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • CPLD Complex Programmable Logic Device
  • the processor is configured to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions by calling the computer program stored in the memory.
  • the processor and memory can also be physically separated.
  • Processor 503 used to read the computer program in the memory 501 and perform the following operations:
  • the primary node in the pairing group to which the terminal is currently connected is the source primary node, and the secondary node is the source secondary node.
  • the pairing group includes a primary node and a secondary node.
  • the information before sending the first indication information to the target master node, the information includes:
  • Receive handover configuration information where the handover configuration information includes one or more pairing groups, and does not include a pairing group composed of the target master node and the source slave node.
  • the first indication information is sent through a Radio Resource Control RRC reconfiguration completion message. of.
  • the first indication information is indication information indicating retention of the source secondary node, or indication information indicating failure to access the secondary cell group SCG, or no SCG related information.
  • Figure 6 is a schematic structural diagram of a target master node provided by an embodiment of the present disclosure.
  • the target master node includes a memory 620, a transceiver 610 and a processor 600; the processor 600 and the memory 620 can also be physically Arrange them separately.
  • the memory 620 is used to store computer programs; the transceiver 610 is used to send and receive data under the control of the processor 600.
  • the transceiver 610 is used to receive and transmit data under the control of the processor 600.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 600 and various circuits of the memory represented by memory 620 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all well known in the art and therefore will not be described further in this disclosure.
  • the bus interface provides the interface.
  • the transceiver 610 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
  • the processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 600 when performing operations.
  • the processor 600 may be a central processing unit (Central Processing Unit, CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device (CPLD), the processor can also adopt a multi-core architecture.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • CPLD Complex Programmable Logic Device
  • the processor 600 is configured to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions by calling the computer program stored in the memory 620 .
  • Processors and memories can also be Physically arranged separately.
  • Processor 600 used to read the computer program in the memory 620 and perform the following operations:
  • a first message is sent to the source primary node; the first message is used to instruct the source secondary node to retain the connection between the terminal and the source secondary node through the source primary node.
  • sending the first message to the source master node based on the received first indication information includes:
  • the first message Based on the received first indication information, determine whether the first message carries second indication information, where the second indication information is used to indicate retaining terminal context information;
  • the first message is sent to the source master node.
  • the method after receiving the first indication information sent by the terminal, the method includes:
  • Send a second message to the source secondary node the second message is used to add the source secondary node to the target primary node to form a pairing group of the primary node and the secondary node;
  • the first message is a handover success message.
  • the second message is a secondary node addition request message.
  • the above-mentioned electronic device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment with the target master node as the execution subject, and can achieve the same technical effect, which will not be discussed here.
  • the parts and beneficial effects in this embodiment that are the same as those in the method embodiment will be described in detail.
  • Figure 7 is a schematic structural diagram of a source master node provided by an embodiment of the present disclosure.
  • the source master node includes a memory 720, a transceiver 710 and a processor 700; the processor 700 and the memory 720 can also be physically connected. Arrange them separately.
  • the memory 720 is used to store computer programs; the transceiver 710 is used to send and receive data under the control of the processor 700.
  • the transceiver 710 is used to receive and transmit data under the control of the processor 700.
  • the bus architecture can include any number of interconnected buses and bridges, specifically Various circuits of one or more processors represented by processor 700 and memory represented by memory 720 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all well known in the art and therefore will not be described further in this disclosure.
  • the bus interface provides the interface.
  • the transceiver 710 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
  • the processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 700 when performing operations.
  • the processor 700 can be a central processing unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex). Programmable Logic Device (CPLD), the processor can also adopt a multi-core architecture.
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • FPGA field programmable gate array
  • Complex complex programmable logic device
  • CPLD Programmable Logic Device
  • the processor can also adopt a multi-core architecture.
  • the processor 700 is configured to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions by calling the computer program stored in the memory 720 .
  • the processor and memory can also be physically separated.
  • Processor 700 used to read the computer program in the memory 720 and perform the following operations:
  • the first message carries the second indication information, and the second indication information is used to indicate retaining terminal context information.
  • the second indication information sent to the source secondary node is sent through a secondary node release request.
  • the above-mentioned electronic device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment with the source master node as the execution subject, and can achieve the same technical effect, which will not be discussed here.
  • the parts and beneficial effects in this embodiment that are the same as those in the method embodiment will be described in detail.
  • Figure 8 is one of the structural schematic diagrams of a device for keeping a secondary node unchanged provided by an embodiment of the present disclosure.
  • the device is applied to a terminal.
  • the device includes:
  • the first sending module 801 is configured to send first indication information to the target master node, where the first indication information is used to instruct to reserve the connection between the terminal and the source slave node;
  • the primary node in the pairing group to which the terminal is currently connected is the source primary node, and the secondary node is the source secondary node.
  • the pairing group includes a primary node and a secondary node.
  • the device further includes a first receiving module 802, used for:
  • the switching configuration information includes one or more pairing groups and does not include the target master node and the source.
  • a pairing group composed of secondary nodes.
  • the first indication information is sent through a Radio Resource Control RRC reconfiguration complete message.
  • the first indication information is indication information indicating retention of the source secondary node, or indication information indicating failure to access the secondary cell group SCG, or no SCG related information.
  • Figure 9 is a second structural schematic diagram of a device for keeping a secondary node unchanged provided by an embodiment of the present disclosure.
  • the device is applied to a target master node.
  • the device includes:
  • the second receiving module 901 is used to receive the first indication information sent by the terminal;
  • the second sending module 902 is configured to send a first message to the source primary node based on the received first indication information; the first message is used to instruct the source secondary node to reserve the terminal and the source secondary node through the source primary node. Node connections.
  • the second sending module 902 is specifically used to:
  • the first message Based on the received first indication information, determine whether the first message carries second indication information, where the second indication information is used to indicate retaining terminal context information;
  • the first message is sent to the source master node.
  • the second sending module 902 is also configured to: send a second message to the source secondary node, the second message is used to add the source secondary node to the target primary node to form a pairing of the primary node and the secondary node. Group;
  • the second receiving module 901 is also configured to: based on the received feedback message from the source secondary node, determine The source secondary node is determined to be added successfully.
  • the first message is a handover success message.
  • the second message is a secondary node addition request message.
  • Figure 10 is the third structural schematic diagram of a device for keeping a secondary node unchanged provided by an embodiment of the present disclosure.
  • the device is applied to the source master node.
  • the device includes:
  • the third receiving module 1001 is used to receive the first message sent by the target master node
  • the third sending module 1002 is configured to send the second indication information to the source secondary node based on the received first message
  • the first message carries the second indication information, and the second indication information is used to indicate retaining terminal context information.
  • the second indication information sent to the source secondary node is sent through a secondary node release request.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above integrated units can be implemented in the form of hardware or software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a processor-readable storage medium.
  • the technical solution of the present disclosure is essentially or contributes to the relevant technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, It includes several instructions to cause a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Various media that can store program code, such as Memory, RAM), magnetic disks or optical disks.
  • embodiments of the present disclosure also provide a computer-readable storage medium, the computer-readable storage medium stores a computer program, the computer program is used to cause the computer to execute the method of keeping the auxiliary node unchanged provided by the above embodiments. Methods.
  • the computer-readable storage medium may be any available media or data storage device that can be accessed by a computer, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor memories (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)), etc.
  • magnetic storage such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.
  • optical storage such as CD, DVD, BD, HVD, etc.
  • semiconductor memories such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • general packet Wireless service general packet radio service, GPRS
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • LTE-A Long term evolution advanced
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • 5G New Radio, NR 5G New Radio
  • the terminal involved in the embodiments of the present disclosure may be a device that provides voice and/or data connectivity to users, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc.
  • the name of the terminal may be different.
  • the terminal may be called user equipment (User Equipment, UE).
  • Wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via the Radio Access Network (RAN).
  • the wireless terminal equipment can be a mobile terminal equipment, such as a mobile phone (also known as a "cell phone").
  • Wireless terminal equipment can also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, and an access point.
  • remote terminal equipment remote terminal equipment
  • access terminal equipment access terminal
  • user terminal user terminal
  • user agent user agent
  • user device user device
  • the network device involved in the embodiment of the present disclosure may be a base station, and the base station may include multiple cells that provide services for terminals.
  • a base station can also be called an access point, or it can be a device in the access network that communicates with wireless terminal equipment through one or more sectors on the air interface, or it can be named by another name.
  • the network device may be used to exchange received air frames with Internet Protocol (IP) packets and act as a router between the wireless terminal device and the rest of the access network, where the remainder of the access network may include the Internet Protocol (IP) communication network.
  • IP Internet Protocol
  • Network devices also coordinate attribute management of the air interface.
  • the network equipment involved in the embodiments of the present disclosure may be a network equipment (Base Transceiver Station, BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA). ), or it can be a network device (NodeB) in a Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device in a long term evolution (LTE) system (evolutionary Node B, eNB or e-NodeB), 5G base station (gNB) in the 5G network architecture (next generation system), or Home evolved Node B (HeNB), relay node, home base station (femto), pico base station (pico), etc. are not limited in the embodiments of the present disclosure.
  • network devices may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized units and distributed units may also be arranged geographically separately.
  • MIMO transmission can be single-user MIMO (Single User MIMO, SU-MIMO) or multi-user MIMO. (Multiple User MIMO, MU-MIMO). Depending on the shape and number of root antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoding transmission or beamforming transmission, etc.
  • embodiments of the present disclosure may be provided as methods, systems, or computer program products. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment that combines software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) embodying computer-usable program code therein.
  • a computer-usable storage media including, but not limited to, magnetic disk storage, optical storage, and the like
  • processor-executable instructions may also be stored in a processor-readable memory that causes a computer or other programmable data processing apparatus to operate in a particular manner, such that the generation of instructions stored in the processor-readable memory includes the manufacture of the instruction means product, the instruction device implements a process in the flow chart or multiple process and/or block diagram functions specified in a box or boxes.
  • processor-executable instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby causing the computer or other programmable device to
  • the instructions that are executed provide steps for implementing the functions specified in a process or processes of the flowchart diagrams and/or a block or blocks of the block diagrams.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des modes de réalisation de la présente divulgation concernent un procédé et un dispositif permettant de maintenir un nœud secondaire inchangé. Le procédé est appliqué à un terminal et consiste à : envoyer des premières informations d'instruction à un nœud maître cible, les premières informations d'instruction servant à demander de réserver la connexion entre le terminal et un nœud secondaire source. Dans un groupe de paires auquel le terminal est actuellement connecté, un nœud maître est un nœud maître source, un nœud secondaire est un nœud secondaire source, et le groupe de paires comprend un nœud maître et un nœud secondaire.
PCT/CN2023/105788 2022-08-04 2023-07-05 Procédé et dispositif de maintien d'un nœud secondaire inchangé WO2024027450A1 (fr)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104378793A (zh) * 2013-08-12 2015-02-25 中兴通讯股份有限公司 一种切换方法、主控基站及受控基站
CN105210416A (zh) * 2013-03-22 2015-12-30 Lg电子株式会社 在支持双连接模式的无线接入系统中执行切换的方法和支持该方法的设备
CN105981442A (zh) * 2014-03-14 2016-09-28 英特尔公司 用户设备和二次小区组在3gpp lte双连接中的联合切换的系统和方法
US20160337924A1 (en) * 2014-01-31 2016-11-17 Fujitsu Limited Wireless communication method, wireless communication system, base station, and wireless station
CN106162771A (zh) * 2014-07-10 2016-11-23 北京三星通信技术研究有限公司 一种小小区系统中不同MeNB间切换的方法及设备
CN107113670A (zh) * 2014-12-30 2017-08-29 Lg 电子株式会社 无线通信系统中执行没有senb改变的menb间切换的方法和装置
CN111919462A (zh) * 2018-08-03 2020-11-10 Oppo广东移动通信有限公司 一种保证数传输可靠性的方法及装置、网络设备

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105210416A (zh) * 2013-03-22 2015-12-30 Lg电子株式会社 在支持双连接模式的无线接入系统中执行切换的方法和支持该方法的设备
CN104378793A (zh) * 2013-08-12 2015-02-25 中兴通讯股份有限公司 一种切换方法、主控基站及受控基站
US20160337924A1 (en) * 2014-01-31 2016-11-17 Fujitsu Limited Wireless communication method, wireless communication system, base station, and wireless station
CN105981442A (zh) * 2014-03-14 2016-09-28 英特尔公司 用户设备和二次小区组在3gpp lte双连接中的联合切换的系统和方法
CN106162771A (zh) * 2014-07-10 2016-11-23 北京三星通信技术研究有限公司 一种小小区系统中不同MeNB间切换的方法及设备
CN107113670A (zh) * 2014-12-30 2017-08-29 Lg 电子株式会社 无线通信系统中执行没有senb改变的menb间切换的方法和装置
CN111919462A (zh) * 2018-08-03 2020-11-10 Oppo广东移动通信有限公司 一种保证数传输可靠性的方法及装置、网络设备

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