WO2021030984A1

WO2021030984A1 - Configuration method and apparatus, and computer readable storage medium and system

Info

Publication number: WO2021030984A1
Application number: PCT/CN2019/101142
Authority: WO
Inventors: 彭文杰
Original assignee: 华为技术有限公司
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2021-02-25

Abstract

A configuration method and apparatus, and a computer readable storage medium and a system, relating to the technical field of communications, and used for solving the problem in the prior art of inconsistent configuration of a terminal (300) and a secondary node (200). The method comprises: a primary node (100) sends a first request message to a secondary node (200) (S101), the first request message comprising first indication information, the first indication information being used for indicating the reason why the secondary node ( 200) updates a first configuration configured for a terminal (300) by the secondary node (200), the first configuration comprising a secondary cell group configuration, the secondary cell group configuration being used for configuring the cell of the secondary node (200); the primary node (100) receives a first acknowledgement message from the secondary node (200) (S102), the first acknowledgement message comprising the updated first configuration, the updated first configuration comprising the full configuration of the secondary cell group configuration.

Description

Configuration method, device, computer readable storage medium and system

Technical field

This application relates to the field of communications technology, and in particular to a configuration method, device, computer-readable storage medium and system.

Background technique

In the Dual Connectivity (DC) scenario, a terminal can be connected to two access network devices at the same time. One of the two access network devices serves as the primary node and the other is the secondary node, and only the primary node and the core network There is a signaling connection between devices.

When the system of the secondary node is updated, such as the system software upgrade, the configuration provided by the secondary node for the terminal will change. The primary node can request the secondary node to update the configuration provided by the secondary node for the terminal according to the changes on the secondary node side through the secondary station modification process. However, in order to save air interface signaling, the secondary node usually provides incremental configuration for the terminal, that is, the secondary node can provide the terminal with changed configuration, and does not provide the unchanged configuration. At this time, for the unchanged configuration, the terminal The previous configuration is retained by default.

However, when the signaling interaction between the terminal and the master node causes the configuration of the terminal side and the secondary node to change, if the secondary node only provides incremental configuration for the terminal, the configuration of the terminal and the secondary node will be inconsistent. .

Summary of the invention

The present application provides a configuration method, device, computer-readable storage medium and system, which solve the problem of inconsistent configuration between the terminal and the auxiliary node in the prior art.

In order to solve the above technical problems, the embodiments of the present application provide the following technical solutions:

In the first aspect, an embodiment of the present application provides a configuration method, including: a master node sends a first request message to a secondary node, the first request message includes first indication information, and the first indication information is used to instruct the secondary node to update the secondary node to The reason for the first configuration of the terminal configuration, the first configuration includes the secondary cell group configuration, which is used to configure the cell of the secondary node; the primary node receives the first confirmation message from the secondary node, and the first confirmation message includes the updated The first configuration, the updated first configuration includes the full configuration of the secondary cell group configuration.

The embodiment of the present application provides a configuration method. The primary node sends a first request message carrying first indication information to the secondary node to enable the secondary node to determine the reason for updating the first configuration configured by the secondary node for the terminal, so that the secondary node will carry The first confirmation message of the updated first configuration is sent to the master node. Compared with the prior art, the secondary node can only provide incremental configuration for the terminal on the basis of the first configuration. In this embodiment, the secondary node can provide the terminal with full configuration through the indication of the first indication information, thereby ensuring that the terminal and the secondary The configuration on the node side is the same.

In a possible implementation manner, the first request message further includes a secret key updated by the master node, and the updated secret key is used for encryption and/or decryption of communication between the secondary node and the terminal. By sending the updated secret key to the secondary node, the original secret key between the terminal and the secondary node can be updated to ensure the security of the communication between the terminal and the secondary node.

In a possible implementation, the reasons for updating the first configuration configured by the secondary node for the terminal include: a radio resource control (radio resource control, RRC) re-establishment process occurs between the primary node and the terminal, and the RRC re-establishment process can be used Trigger the terminal to release the first configuration. When the RRC re-establishment process is triggered, the terminal will release the first configuration.

In a possible implementation manner, the first configuration further includes a radio bearer configuration, which is used to configure a radio bearer between the secondary node and the terminal, and the updated first configuration also includes: an increment of the radio bearer configuration Configuration. The incremental configuration of the radio bearer configuration includes indication information for re-establishment of the packet data convergence protocol (PDCP) entity of the radio bearer. Since the terminal will not release the PDCP entity when the RRC is re-established, the normal communication between the terminal and the secondary node can be guaranteed as long as the incremental configuration of the radio bearer configuration is provided.

In a possible implementation manner, the incremental configuration of the radio bearer configuration does not include the uplink PDCP sequence number length and the downlink PDCP sequence number length.

In a possible implementation manner, the reason for updating the first configuration configured by the secondary node for the terminal includes: the primary node configures the first signaling for the terminal, and the first signaling triggers the terminal to release the first configuration. The terminal releases the first configuration according to the first signaling, so that the secondary node can be triggered to provide the terminal with the updated first configuration.

In a possible implementation manner, the first configuration further includes a radio bearer configuration, and the updated first configuration further includes: a full configuration of the radio bearer configuration. The first signaling can make the terminal release all the configurations included in the first configuration. Therefore, only by providing the full configuration of the radio bearer configuration can the normal communication between the terminal and the secondary node be guaranteed.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: the master node sends the updated first configuration to the terminal. By sending the updated first configuration to the terminal, the terminal executes the updated first configuration, so that the configuration of the terminal is consistent with the secondary node.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: the master node receives a configuration completion message from the terminal; the configuration completion message is used to indicate that the terminal has completed communication with the secondary node according to the updated first configuration. Configuration; the master node sends a configuration complete message to the slave node. The configuration complete message can confirm that the terminal has completed the configuration update.

In a second aspect, an embodiment of the present application provides a configuration method, including: a secondary node receives a first request message from a primary node, the first request message includes first indication information, and the first indication information is used to instruct the secondary node to update the secondary node The reason for the first configuration configured for the terminal; the first configuration includes the secondary cell group configuration, which is used to configure the cell of the secondary node; the secondary node sends a first confirmation message to the primary node, and the first confirmation message includes the updated The first configuration, the updated first configuration includes the full configuration of the secondary cell group configuration.

The embodiment of the present application provides a configuration method. By receiving a first request message carrying first indication information from the master node, the secondary node determines the reason for updating the first configuration configured by the secondary node for the terminal, so that the secondary node will carry the update The first confirmation message of the subsequent first configuration is sent to the master node. Compared with the prior art, the secondary node can only provide incremental configuration for the terminal on the basis of the first configuration. In this embodiment, the secondary node can provide the terminal with full configuration through the indication of the first indication information, thereby ensuring that the terminal and the secondary The configuration on the node side is the same.

In a possible implementation manner, the reason for updating the first configuration configured by the secondary node for the terminal includes: an RRC re-establishment process occurs between the primary node and the terminal, and the RRC re-establishment process can be used to trigger the terminal to release the first configuration. The terminal will release the first configuration when the RRC re-establishment process is triggered.

In a possible implementation manner, the first configuration further includes a radio bearer configuration, which is used to configure a radio bearer between the secondary node and the terminal, and the updated first configuration also includes: an increment of the radio bearer configuration Configuration. The incremental configuration of the radio bearer configuration includes the indication information of the PDCP entity re-establishment of the radio bearer. Since the terminal will not release the PDCP entity when the RRC is re-established, the normal communication between the terminal and the secondary node can be guaranteed as long as the incremental configuration of the radio bearer configuration is provided.

In a possible implementation manner, the incremental configuration of the radio bearer configuration does not include the uplink packet data convergence protocol PDCP sequence number length and the downlink PDCP sequence number length.

In a possible implementation, the method provided in the embodiment of the present application further includes: the secondary node receives a configuration complete message from the primary node, and the configuration complete message is used to indicate that the terminal has completed the relationship with the secondary node according to the updated first configuration. Between the configuration. The configuration complete message can confirm that the terminal has completed the configuration update.

In a third aspect, embodiments of the present application provide a configuration method, including: releasing a first configuration configured by a secondary node for a terminal, the first configuration includes a secondary cell group configuration, and the secondary cell group configuration is used to configure the cell of the secondary node; The node receives the updated first configuration from the secondary node, and the updated first configuration includes the full configuration of the secondary cell group configuration.

The method may be executed by a terminal or a device for the terminal, such as a chip.

The embodiment of the present application provides a configuration method. After the terminal releases the first configuration configured by the secondary node for the terminal, it can receive the updated first configuration from the secondary node from the primary node. Compared with the prior art, the terminal can only perform the first configuration. The incremental configuration is received on the basis of a configuration. In this embodiment, the master node can make the slave node provide a full configuration for the terminal, so as to ensure that the configuration of the terminal and the slave node are consistent.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: sending a configuration complete message to the master node, where the configuration complete message is used to indicate that the terminal has completed the configuration with the secondary node according to the updated first configuration . The configuration complete message allows the master node to determine that the terminal has completed the configuration update.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: performing an RRC re-establishment procedure with the master node, and releasing the first configuration when the RRC re-establishment procedure is triggered.

In a possible implementation manner, the method provided in the embodiment of the present application further includes: receiving first signaling from the master node, and the first signaling triggers the terminal to release the first configuration. The terminal releases the first configuration according to the first signaling, so that the secondary node can be triggered to provide the terminal with the updated first configuration.

In a fourth aspect, embodiments of the present application provide a communication device, which can implement the first aspect or any possible implementation method of the first aspect, and therefore can also implement any possible implementation of the first aspect or the first aspect. The beneficial effect in the realization method. The communication device may be an access network device, such as the master node of the terminal in dual-connection communication, or a device that can support the access network device to implement the first aspect or any possible implementation method of the first aspect, For example, it is applied to the chip in the master node. The device can implement the above method by software, hardware, or by hardware executing corresponding software.

As an example, an embodiment of the present application provides a communication device, the communication device includes: a communication unit, configured to send a first request message to a secondary node, the first request message includes first indication information, and the first indication information is used to indicate The reason why the secondary node updates the first configuration configured by the secondary node for the terminal. The first configuration includes the secondary cell group configuration, which is used to configure the cell of the secondary node; the communication unit is also used to receive the first confirmation from the secondary node Message, the first confirmation message includes the updated first configuration, and the updated first configuration includes the full configuration of the secondary cell group configuration.

In a possible implementation manner, the first request message further includes a secret key updated by the master node, and the updated secret key is used for encryption and/or decryption of communication between the secondary node and the terminal.

In a possible implementation manner, the reason for updating the first configuration configured by the secondary node for the terminal includes: an RRC re-establishment process occurs between the primary node and the terminal, and the RRC re-establishment process can be used to trigger the terminal to release the first configuration.

In a possible implementation manner, the first configuration further includes a radio bearer configuration, which is used to configure a radio bearer between the secondary node and the terminal, and the updated first configuration also includes: an increment of the radio bearer configuration Configuration. The incremental configuration of the radio bearer configuration includes the indication information of the PDCP entity re-establishment of the radio bearer.

In a possible implementation manner, the reason for updating the first configuration configured by the secondary node for the terminal includes: the primary node configures the first signaling for the terminal, and the first signaling triggers the terminal to release the first configuration.

In a possible implementation manner, the first configuration further includes a radio bearer configuration, and the updated first configuration further includes: a full configuration of the radio bearer configuration.

In a possible implementation manner, the communication unit is further configured to send the updated first configuration to the terminal.

In a possible implementation, the communication unit is further configured to receive a configuration complete message from the terminal; the configuration complete message is used to indicate that the terminal has completed the configuration with the secondary node according to the updated first configuration; the communication unit, It is also used to send a configuration complete message to the secondary node.

In another example, an embodiment of the present application provides a communication device. The communication device may include: a communication unit and a processing unit. When the communication device is the master node, the communication unit may be a communication interface or an interface circuit. The processing unit may be a processor. The processing unit executes the instructions stored in the storage unit, so that the communication device implements the first aspect or the method described in any one of the possible implementation manners of the first aspect. When the communication device is a chip in the master node, the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface.

Optionally, the processor, the communication interface and the memory are coupled with each other.

In the fifth aspect, the embodiments of the present application provide a communication device, which can implement the second aspect or any possible implementation method of the second aspect, and therefore can also implement any possible implementation of the second aspect or the second aspect. The beneficial effect in the realization method. The communication device may be an access network device, such as a secondary node of the terminal in dual-connection communication, or a device that can support the access network device to implement the second aspect or any possible implementation method of the second aspect, For example, it is applied to the chip in the auxiliary node. The device can implement the above method by software, hardware, or by hardware executing corresponding software.

As an example, an embodiment of the present application provides a communication device, the communication device includes: a communication unit configured to receive a first request message from a master node, the first request message includes first indication information, and the first indication information is used for The reason for instructing the secondary node to update the first configuration configured by the secondary node for the terminal; the first configuration includes the secondary cell group configuration, which is used to configure the cell of the secondary node; the communication unit is also used to send the first confirmation to the primary node Message, the first confirmation message includes the updated first configuration, and the updated first configuration includes the full configuration of the secondary cell group configuration.

In a possible implementation manner, the first configuration further includes a radio bearer configuration, which is used to configure a radio bearer between the secondary node and the terminal, and the updated first configuration also includes: an increment of the radio bearer configuration Configuration. The incremental configuration of the radio bearer configuration includes the indication information of the re-establishment of the PDCP entity of the radio bearer.

In a possible implementation manner, the communication unit is further configured to receive a configuration complete message from the master node, where the configuration complete message is used to indicate that the terminal has completed configuration with the secondary node according to the updated first configuration.

In another example, an embodiment of the present application provides a communication device. The communication device may include: a communication unit and a processing unit. When the communication device is a secondary node, the communication unit may be a communication interface or an interface circuit. The processing unit may be a processor. The processing unit executes the instructions stored in the storage unit, so that the communication device implements the second aspect or the method described in any one of the possible implementation manners of the second aspect. When the communication device is a chip in the auxiliary node, the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface.

In the sixth aspect, the embodiments of the present application provide a communication device that can implement the third aspect or any possible implementation method of the third aspect, and therefore can also implement any possible implementation of the third aspect or the third aspect. The beneficial effect in the realization method. The communication device may be a terminal, or a device that can support the terminal to implement the method in the third aspect or any possible implementation manner of the third aspect, for example, a chip applied to the terminal. The device can implement the above method by software, hardware, or by hardware executing corresponding software.

As an example, an embodiment of the present application provides a communication device, the communication device includes: a processing unit configured to release a first configuration configured by a secondary node for a terminal, the first configuration includes a secondary cell group configuration, and the secondary cell group configuration is used for Configure the cell of the secondary node; the communication unit is configured to receive the updated first configuration from the secondary node from the primary node, and the updated first configuration includes the full configuration of the secondary cell group configuration.

In a possible implementation manner, the communication unit is further configured to send a configuration complete message to the master node, where the configuration complete message is used to indicate that the terminal has completed the configuration with the secondary node according to the updated first configuration.

In a possible implementation manner, the processing unit is further configured to perform an RRC re-establishment process with the master node, and in the RRC re-establishment process, release the first configuration.

In a possible implementation manner, the communication unit is further configured to receive first signaling from the master node, and the first signaling triggers the terminal to release the first configuration.

In another example, an embodiment of the present application provides a communication device. The communication device may be a terminal or a chip in the terminal. The communication device may include: a communication unit and a processing unit. When the communication device is a terminal, the communication unit may be a communication interface or an interface circuit. The communication device may also include a storage unit. The processing unit may be a processor. The processing unit executes the instructions stored in the storage unit, so that the communication device implements the third aspect or the method described in any one of the possible implementation manners of the third aspect. When the communication device is a chip in the terminal, the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface. The processing unit executes the computer program code stored in the storage unit, so that the terminal implements the third aspect or the method described in any one of the possible implementation manners of the third aspect.

In a seventh aspect, the embodiments of the present application provide a computer-readable storage medium. The computer-readable storage medium stores a computer program or instruction. When the computer program or instruction is run on a computer, the computer can execute operations as described in the first aspect to the first aspect. One of the configuration methods described in any one of the possible implementations.

In an eighth aspect, embodiments of the present application provide a computer-readable storage medium, and a computer program or instruction is stored in the computer-readable storage medium. When the computer program or instruction is run on a computer, the computer can execute operations as described in the second aspect to the first aspect. The configuration method described in any one of the possible implementations of the two aspects.

In the ninth aspect, the embodiments of the present application provide a computer-readable storage medium, and a computer program or instruction is stored in the computer-readable storage medium. When the computer program or instruction runs on a computer, the computer executes operations such as the third aspect to the first aspect. The configuration method described in any one of the three possible implementations.

In a tenth aspect, an embodiment of the present application provides a computer program product including instructions, which when the instructions run on a computer, cause the computer to execute the configuration method described in the first aspect or various possible implementations of the first aspect .

In an eleventh aspect, the present application provides a computer program product including instructions that, when the instructions run on a computer, cause the computer to execute a configuration method described in the second aspect or various possible implementations of the second aspect.

In a twelfth aspect, the present application provides a computer program product including instructions, which when the instructions run on a computer, cause the computer to execute a configuration method described in the third aspect or various possible implementations of the third aspect.

In a thirteenth aspect, an embodiment of the present application provides a communication device. The communication device includes a processor and a memory. The memory stores instructions. When the instructions are executed by the processor, they implement the first aspect or the first aspect. The configuration method described in a possible implementation.

In a fourteenth aspect, an embodiment of the present application provides a communication device that includes a processor and a memory, and the memory stores instructions. When the instructions are executed by the processor, each of the second aspect or the second aspect is implemented. The configuration method described in a possible implementation.

In a fifteenth aspect, an embodiment of the present application provides a communication device. The communication device includes a processor and a memory. The memory stores instructions. When the instructions are executed by the processor, they implement the third aspect or the third aspect. The configuration method described in a possible implementation.

In a sixteenth aspect, an embodiment of the present application provides a chip that includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a computer program or instruction to implement the first aspect or each of the first aspect. A configuration method described in the possible implementations. The communication interface is used to communicate with other modules outside the chip.

In a seventeenth aspect, an embodiment of the present application provides a chip including a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used to run a computer program or instruction to implement the second aspect or each of the second aspect. A configuration method described in the possible implementations. The communication interface is used to communicate with other modules outside the chip.

In an eighteenth aspect, an embodiment of the present application provides a chip. The chip includes a processor and a communication interface, and the communication interface is coupled to the processor. The processor is used to run a computer program or instruction to implement the third aspect or each of the third aspect. A configuration method described in the possible implementations. The communication interface is used to communicate with other modules outside the chip.

Specifically, the chip provided in the embodiment of the present application further includes a memory for storing computer programs or instructions.

In a nineteenth aspect, embodiments of the present application provide a communication system, which includes any one or more of the following: the fourth aspect and the communication device described in the various possible implementations of the fourth aspect, and the fifth aspect And the communication devices described in various possible implementation manners of the fifth aspect, and the communication devices described in the sixth aspect and various possible implementation manners of the sixth aspect.

Any device or computer readable storage medium or computer program product or chip provided above is used to execute the corresponding method provided above, therefore, the beneficial effects that can be achieved can refer to the corresponding method provided above The beneficial effects of the corresponding solutions in the above will not be repeated here.

Description of the drawings

FIG. 1 is a schematic structural diagram of a communication system applicable to an embodiment of the present application;

FIG. 2 is a first schematic diagram of a communication interface of a communication system applicable to an embodiment of the present application;

FIG. 3 is a second schematic diagram of a communication interface of a communication system applicable to an embodiment of the present application;

FIG. 4 is a schematic diagram of a bearer type of a communication system applicable to an embodiment of the present application;

FIG. 5 is a first schematic flowchart of a configuration method provided by an embodiment of this application;

FIG. 6 is a second schematic flowchart of a configuration method provided by an embodiment of this application;

FIG. 7 is a schematic diagram of the interaction between the terminal and the master node in the RRC re-establishment process provided by an embodiment of this application;

FIG. 8 is a third schematic flowchart of a configuration method provided by an embodiment of this application;

FIG. 9 is a first structural diagram of a communication device provided by an embodiment of this application;

FIG. 10 is a second schematic structural diagram of a communication device provided by an embodiment of this application;

FIG. 11 is a schematic structural diagram of a communication device provided by an embodiment of this application;

FIG. 12 is a schematic structural diagram of a chip provided by an embodiment of the application.

detailed description

In this application, "at least one" refers to one or more. Multiple" refers to two or more. "And/or" describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, both A and B exist, and B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the associated objects are in an "or" relationship. "The following at least one item (a)" or similar expressions refers to any combination of these items, including any combination of a single item (a) or plural items (a). For example, at least one item (a) of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .

In order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish the same items or similar items that have substantially the same function and effect. Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and order of execution, and words such as "first" and "second" do not limit the difference.

It should be noted that in this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or illustrations. Any embodiment or design solution described as "exemplary" or "for example" in this application should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as "exemplary" or "for example" are used to present related concepts in a specific manner.

The embodiment of this application defines the one-way communication link from the access network to the terminal as the downlink, the data transmitted on the downlink is the downlink data, and the transmission direction of the downlink data is called the downlink direction; and the one from the terminal to the access network The unidirectional communication link is the uplink, and the data transmitted on the uplink is the uplink data, and the transmission direction of the uplink data is called the uplink direction.

The resources described in the embodiments of the present application may also be referred to as transmission resources, including one or more of time domain resources, frequency domain resources, and code channel resources, and may be used to carry data in the uplink communication process or the downlink communication process. Or signaling.

It should be understood that in the embodiment of the present invention, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and/or other information.

The "plurality" in the embodiments of the present application refers to two or more.

The descriptions of the first, second, etc. appearing in the embodiments of this application are only used for illustration and distinguishing the description objects, and there is no order, and it does not mean that the number of devices in the embodiments of this application is particularly limited, and cannot constitute a reference to this application. Any limitations of the embodiment.

The "connection" appearing in the embodiments of this application refers to various connection modes such as direct connection or indirect connection to realize communication between devices, which is not limited in the embodiments of this application.

Unless otherwise specified, "transmit/transmission" in the embodiments of this application refers to two-way transmission, including sending and/or receiving actions. Specifically, "transmission" in the embodiments of the present application includes the sending of data, the receiving of data, or the sending of data and the receiving of data. In other words, the data transmission here includes uplink and/or downlink data transmission. Data may include channels and/or signals. Uplink data transmission means uplink channel and/or uplink signal transmission, and downlink data transmission means downlink channel and/or downlink signal transmission.

The "network" and "system" appearing in the embodiments of this application express the same concept, and the communication system is the communication network.

It is understandable that in the embodiments of the present application, the terminal and/or the access network device can perform some or all of the steps in the embodiments of the present application. These steps or operations are only examples. In the embodiments of the present application, other operations may also be performed. Or the deformation of various operations. In addition, each step may be executed in a different order presented in the embodiment of the present application, and it may not be necessary to perform all the operations in the embodiment of the present application.

In a long term evolution (Long term evolution, LTE) system, the terminal supports access to base stations in two LTE systems. With the development and evolution of wireless communication systems, in the 5G New Radio (NR) system and the Long Term Evolution (LTE) system, the terminal also supports access to the base station in the LTE system and the base station in the NR system , Since LTE is also called Evolved Universal Terrestrial Radio Access (E-UTRA), this access method is called Evolved Universal Terrestrial Radio Access and New Air Interface Dual Connection ( E-UTRA NR Dual Connectivity, EN-DC). With the evolution of the system, the new air interface and the evolved universal land surface wireless access dual connectivity (NR E-UTRA Dual Connectivity, NE-DC) can also be supported in the future. Since both EN-DC and NE-DC terminals are connected to base stations of two different wireless access technologies, these DC modes can also be collectively referred to as Multi-Radio Dual Connectivity (MR-DC).

As shown in Figure 1, Figure 1 shows a schematic diagram of a communication system architecture to which the configuration method provided by this application is applied. The communication system includes: a master node (Master node, MN) 100 (only one is shown in Figure 1 Primary node), at least one secondary node (Secondary node, SN) 200 connected to the primary node 100 (only one secondary node is shown in FIG. 1), and one or more terminals connected to the primary node 100 and the secondary node 200 300. Wherein, there is a first interface between the master node 100 and the slave node 200, and the two at least include a control plane connection for transmitting signaling messages, and may also include a user plane connection for transmitting data information.

The master node 100 provides air interface resources for one or more terminals 300 through at least one primary cell covered by the master node 100. At least one primary cell covered by the master node 100 may be referred to as a master cell group (Master Cell Group, MCG).

The secondary node 200 provides air interface resources for one or more terminals 300 through at least one secondary cell covered by the secondary node 200. At least one secondary cell covered by the secondary node 200 may be referred to as a secondary cell group (SCG).

Optionally, the communication system shown in FIG. 1 may further include a core network 400, and the primary node 100 and the secondary node 200 may be connected to the core network 400. The core network 400 may be a 4G core network (for example, Evolved Packet Core (EPC)) or a 5G core network (5G Core, 5GC). Wherein, there is a second interface between the primary node 100 and the core network 400, and there may be a third interface between the secondary node 200 and the core network 400.

The master node 100 refers to the first base station that the terminal 300 randomly accesses. The master node 100 is responsible for establishing a control plane connection with the core network 400, transmitting signaling messages, and selecting the secondary node 200 for the terminal 300, and transferring the secondary node 200 and Signaling messages between terminals 300, etc.

The secondary node 200 refers to a second base station accessed by the terminal 300 other than the master node 100, and is a node used to provide the terminal 300 with additional wireless resources. There is no control plane connection between the secondary node 200 and the core network 400, but there may be a user plane connection.

Since the core network 400 is different, the network standards of the primary node 100 and the secondary node 200 are different, and the DC scenarios formed are different, the following will be introduced separately:

Example 1: With reference to Figure 2, taking the core network 400 as an EPC as an example, the primary node 100 may be an LTE base station, and the secondary node 200 may be an NR base station. At this time, the first interface between the primary node 100 and the secondary node 200 It can be an X2 interface, at least there is a control plane connection on the X2 interface, and there can be a user plane connection. The second interface between the master node 100 and the EPC may be an S1 interface, and there is at least a control plane connection on the S1 interface, and may also have a user plane connection. When there is a third interface between the secondary node 200 and the EPC, the third interface may be an S1-U interface. There is a user plane connection on the S1-U interface.

Example 2: With reference to Figure 3, when the core network 400 is 5GC, the primary node 100 can be an LTE base station, and the secondary node 200 can be an NR base station. At this time, the first interface between the primary node 100 and the secondary node 200 can be Xn interface, at least there is a control plane connection on the Xn interface, and there may be a user plane connection. The second interface between the master node 100 and the 5GC may be an NG interface, and there is at least a control plane connection on the NG interface, and may also have a user plane connection. When there is a third interface between the secondary node 200 and the 5GC, the third interface may be an NG-U interface, and there is a user plane connection on the NG-U interface.

Example 3: Continuing to refer to Figure 3, when the core network 400 is 5GC, at this time, the primary node 100 can be an NR base station, and the secondary node 200 can be an LTE base station. At this time, the first interface between the primary node 100 and the secondary node 200 can be It is an Xn interface, and at least there is a control plane connection on the Xn interface, and there may be a user plane connection. The second interface between the master node 100 and the 5GC may be an NG interface, and there is at least a control plane connection on the NG interface, and may also have a user plane connection. When there is a third interface between the secondary node 200 and the 5GC, the third interface may be an NG-U interface, and there is a user plane connection on the NG-U interface.

Example 4: Continue to refer to FIG. 3, when the core network 400 is 5GC, at this time, both the primary node 100 and the secondary node 200 may be NR base stations. The first interface between the master node 100 and the slave node 200 may be an Xn interface, and at least a control plane connection is provided on the Xn interface, and there may be a user plane connection. The second interface between the master node 100 and the 5GC may be an NG interface, and there is at least a control plane connection on the NG interface, and may also have a user plane connection. When there is a third interface between the secondary node 200 and the 5GC, the third interface may be an NG-U interface, and there is a user plane connection on the NG-U interface.

It should be noted that Example 2, Example 3, and Example 4 may be referred to as MR-DC scenarios under 5GC.

Continuing to refer to FIG. 3, in any DC scenario, there is a wireless Uu interface between the master node 100 and the terminal 300, and there is a wireless Uu interface between the secondary node 200 and the terminal 300. For example, the master node 100 and the terminal 300 can transmit user plane data and control plane signaling through a Uu interface. The secondary node 200 and the terminal 300 can transmit user plane data through a wireless Uu interface. Among them, the user plane of the Uu interface mainly transmits user data; the control plane transmits related signaling to establish, reconfigure and release various mobile communication radio bearer services.

Referring to Figure 4, the bearer types in the MR-DC scenario include:

MCG bearer terminated at MN (MN terminated MCG bearer); SCG bearer terminated at MN (MN terminated SCG bearer); Split bearer terminated at MN (MN terminated split bearer); MCG bearer terminated at SN (SN Terminated MCG bearer; SN terminated SCG bearer (SN terminated SCG bearer); terminated SN split bearer (SN terminated split bearer).

Among them, the bearer that terminates in the MN is that the Packet Data Convergence Protocol (PDCP) entity of the bearer is located in the MN. The bearers that terminate in the MN include the MCG bearer that terminates in the MN, the SCG bearer that terminates in the MN, and the Split bearer of MN. The bearer terminated in the SN means that the PDCP entity of the bearer is located in the SN, and the bearer terminated in the SN includes the MCG bearer terminated in the SN, the SCG bearer terminated in the SN, and the split bearer terminated in the SN. The MCG bearer refers to the bearer of the Radio Link Control (RLC) entity in the MN; the SCG bearer refers to the bearer of the RLC entity in the SN; and the split bearer refers to the bearer of the corresponding RLC entity in the MN and SN.

Therefore, exemplary, the MCG bearer terminated in the MN, that is, the PDCP entity of the bearer is located in the MN, and the RLC entity is also located in the MN.

The primary node 100 and the secondary node 200 in this application may be access network equipment that can communicate with the terminal 300, and may be an access point (AP) in a wireless local area network (Wireless Local Area Network, WLAN). Mobile communication system (Global system for mobile communications, GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA) in the base station (Base Transceiver Station, BTS), can also be Wideband Code Division Multiple Access (Wideband Code Division) The base station (NodeB, NB) in Multiple Access (WCDMA) can also be an evolved Node B (eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable equipment, and future 5G The base station (gNB) in the network or the base station in the future evolution of the Public Land Mobile Network (Public Land Mobile Network, PLMN) network, etc. The access network equipment described in this application can be implemented by one node to implement the functions of RRC, PDCP, RLC, and MAC protocol layers; or multiple nodes can implement the functions of these protocol layers; for example, in an evolution structure, The access network equipment includes a centralized unit (CU) and a distributed unit (DU). Multiple DUs can be centrally controlled by one CU. The CU and DU can be divided according to the protocol layer of the wireless network, such as the PDCP layer and The functions of the above protocol layers are set in the CU, and the protocol layers below PDCP, such as the RLC layer and MAC layer, are set in the DU. This type of protocol layer division is just an example, it can also be divided in other protocol layers, for example, in the RLC layer, the functions of the RLC layer and above protocol layers are set in the CU, and the functions of the protocol layers below the RLC layer are set in the DU; Or, in a certain protocol layer, for example, part of the functions of the RLC layer and the functions of the protocol layer above the RLC layer are set in the CU, and the remaining functions of the RLC layer and the functions of the protocol layer below the RLC layer are set in the DU. In addition, it can also be divided in other ways, for example, by time delay, and functions that need to meet the delay requirement for processing time are set in the DU, and functions that do not need to meet the delay requirement are set in the CU.

In the embodiment of the present application, the terminal 300 is a device that provides voice and/or data connectivity to the user, for example, a handheld device with a wireless connection function, a vehicle-mounted device, and the like. It can also be called User Equipment (UE), Access Terminal (Access Terminal), User Unit (User Unit), User Station (User Station), Mobile Station (Mobile Station), Mobile Station (Mobile), and Remote Station (Remote Station), Remote Terminal (Remote Terminal), Mobile Equipment (Mobile Equipment), User Terminal (User Terminal), Wireless Communication Equipment (Wireless Telecom Equipment), User Agent (User Agent), User Equipment (User Equipment) or User Device. The terminal can be a station (Station, STA) in a wireless local area network (Wireless Local Area Networks, WLAN), a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, and a wireless local loop (Wireless Local Loop). , WLL) stations, Personal Digital Assistant (PDA) devices, handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, and next-generation communication systems (such as , The terminal in the fifth-generation (Fifth-Generation, 5G) communication network) or the terminal in the future evolution of the public land mobile network (Public Land Mobile Network, PLMN) network, etc. Among them, 5G can also be called New Radio (NR).

As an example, in the embodiment of the present invention, the terminal 300 may also be a wearable device. Wearable devices can also be called wearable smart devices. It is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones. Use, such as various smart bracelets and smart jewelry for physical sign monitoring.

When the configuration of the primary node 100 or the secondary node 200 is updated, the primary node 100 may request the secondary node 200 to provide the updated configuration for the terminal 300 through the secondary station modification process. The updated configuration is a configuration that has been changed on the basis of the original configuration, and compared to the configuration that has not been changed or changed compared to the original configuration, in order to save signaling overhead, repeated transmissions may not be required. In addition, the configuration that can be provided to the terminal 300 only in the preset scene according to the agreement is not included in the updated configuration. However, when the terminal 300 has a signaling interaction with the master node 100 and causes the terminal 300 to release all configurations related to the secondary node 200, if the changed configuration is only provided to the terminal 300 in the previous manner, it will cause the secondary node stored on the terminal 300 side. The first configuration provided by the node 200 for the terminal 300 is inconsistent with the first configuration stored on the side of the secondary node 200, thereby affecting the normal communication between the terminal 300 and the secondary node 200.

For example, the current configuration of the preset terminal 300 and the secondary node 200 is configuration A. When the configuration of the secondary node 200 is updated, the secondary node 200 adds configuration B to the terminal 300. To ensure that the configuration of the terminal 300 and the secondary node 200 are consistent, the secondary node 200 can send the added configuration B to the terminal 300 through the master node 100 through the secondary station modification process. After the terminal 300 receives the configuration B, the configuration is updated to the configuration A and the configuration B.

When the terminal 300 and the master node 100 have a signaling interaction that causes the terminal 300 to release configuration A, the secondary node 200 does not know that the terminal 300 side configuration has changed. When receiving the secondary station modification process request sent by the primary node 100, The terminal 300 will still be provided with configuration B on the basis of configuration A, resulting in the configuration on the terminal 300 side as configuration B, and the configuration on the secondary node 200 side as configuration A and configuration B. The configuration of the terminal 300 and the secondary node 200 are inconsistent, which will affect the normal communication between the terminal 300 and the secondary node 200.

The embodiment of the present application provides a configuration method, which can solve the problem that the configuration of the terminal 300 and the secondary node 200 are inconsistent.

Referring to FIG. 5, FIG. 5 shows a schematic flowchart of a configuration method provided by an embodiment of the present application. The method can be used in the DC communication scenario shown in FIG. 1 to FIG. 4. The method includes:

S101. The master node 100 sends a first request message to the slave node 200.

Correspondingly, the secondary node 200 receives the first request message from the primary node 100.

In the embodiment of the present application, the terminal supports DC communication, that is, the terminal 300 can simultaneously access the primary node 100 and the secondary node, and the primary node and the secondary node can perform signaling interaction in the DC communication process. Taking EN-DC as an example, the master node 100 determines that the terminal 300 releases the first configuration configured by the secondary node 200 for the terminal 300, and can send the first request message to the secondary node 200.

The first request message may be a secondary node modification request message, or may be another request message that can carry first indication information, where the first indication information is used to instruct the secondary node 200 to update the first configuration reason. For example, the reason why the secondary node 200 updates the first configuration may include an RRC re-establishment process between the terminal 300 and the master node 100, the master node 100 has sent the first signaling to the terminal 300, or is about to send the first signaling to the terminal 300. The first signaling may be a full configuration (fullConfig) command instructing the terminal 300 to release the first configuration.

Optionally, the first indication information may be an interface cell, or may be a cell in an inter-node message (inter-node message). The first configuration may include a secondary cell group configuration, which is used to configure a cell of the secondary node 200.

Optionally, the first configuration may further include a measurement configuration, which is used to configure the terminal 300 to perform a measurement. Illustratively, the measurement configuration may include a measurement object, a measurement quantity, a measurement event, a measurement identifier, and the like.

Specifically, the secondary cell group configuration may include RLC configuration, Medium Access Control (MAC) configuration, and physical layer configuration.

Among them, the RLC configuration is used to configure the RLC entity of signaling radio bearers (SRB) and/or the RLC entity of data radio bearers (DRB) between the terminal 300 and the secondary node 200.

The MAC configuration may include at least one of logical channel configuration, hybrid automatic repeat request (Hybrid Automatic Repeat request, HARQ) configuration, and logical channel priority configuration, where the logical channel configuration is used to configure the connection between the terminal 300 and the secondary node 200 The logical channel of the radio bearer, the hybrid automatic repeat request configuration is used to configure the HARQ parameters between the terminal 300 and the secondary node 200, and the logical channel priority configuration is used to configure the priority of the logical channel between the terminal 300 and the secondary node 200 .

The physical layer configuration may include at least one of a cell identity, a bandwidth part (Bandwidth part, BWP) configuration, a physical channel configuration, a random access (Random Access Channel, RACH) configuration, and a power configuration. The cell identifier is used to identify the cell covered by the secondary node 200, the bandwidth part is used to configure the bandwidth part between the terminal 300 and the secondary node 200, and the physical channel configuration is used to configure the physical channel between the terminal 300 and the secondary node 200. The random access configuration is used to configure related configurations when the terminal 300 randomly accesses the secondary node 200, and the power configuration is used to configure the transmission power of data between the terminal 300 and the secondary node 200.

S102. The secondary node 200 sends a first confirmation message to the primary node 100.

Correspondingly, the master node 100 receives the first confirmation message from the slave node 200.

The secondary node 200 may obtain the first indication information from the first request message, and further determine the reason for updating the first configuration configured by the secondary node 200 for the terminal 300 according to the first indication information. The secondary node 200 may determine different updated first configurations according to different reasons. That is, by sending the first indication information to the secondary node 200, the primary node can enable the secondary node 200 to determine the interaction scenario that occurs between the primary node 100 and the terminal 300, and then determine different updates according to the impact of the interaction scenario on the first configuration. After the first configuration, the updated first configuration includes the full configuration of the secondary cell group configuration.

For example, the first confirmation message may be a secondary node modification request message, and the secondary node modification request message includes the updated first configuration.

It should be noted that the full configuration in this embodiment may also be referred to as a full configuration (full configuration). The full configuration is a concept relative to the incremental configuration, and does not depend on the configuration previously provided for the terminal 300. Even if the configuration previously provided for the terminal 300 has not changed, all the configurations need to be provided again. It can be understood that the full configuration refers to all the configurations required to implement communication between the secondary node 200 and the terminal 300.

Take the secondary cell group configuration in the first configuration as an example to illustrate the concept of full configuration. If the secondary cell group configuration includes 3 configuration parameters and corresponding values, they are configuration parameter A and the corresponding value x and configuration parameters. B and the corresponding value y, the configuration parameter C and the corresponding value z. Regardless of whether the secondary node 200 updates the values corresponding to the three configuration parameters, the full configuration of the secondary cell group configuration includes configuration parameter A, configuration parameter B, and configuration parameter C. Among them, the corresponding values of configuration parameter A, configuration parameter B and configuration parameter C can be the same as the original value or different from the original value, that is, the value corresponding to configuration parameter A can be x or x1; configuration parameter The value corresponding to B can be y or y1; the value corresponding to configuration parameter C can be z or z1.

The opposite of full configuration is incremental configuration. Incremental configuration refers to the configuration of configuration items that have changed among all configuration items included in a configuration category. For example, still taking the secondary cell group configuration in the first configuration as an example, the secondary cell group configuration includes three configuration parameters and corresponding values, which are configuration parameter A and corresponding value x, configuration parameter B and corresponding value Value y, configuration parameter C, and corresponding value z. If the value z corresponding to the updated configuration parameter C of the secondary node 200 is z1, the incremental configuration of the secondary cell group configuration may only include the value z1 corresponding to the configuration parameter C. If the value x corresponding to the updated configuration parameter A of the secondary node 200 is x1, and the value z corresponding to the updated configuration parameter C is z1, the incremental configuration of the secondary cell group configuration may only include the value x1 corresponding to the configuration parameter A and Configuration parameter C corresponds to the value z1.

It should be understood that, before S102, the method provided in the embodiment of the present application further includes: the secondary node 200 configures the terminal 300 with the first configuration. Through this first configuration, the secondary node 200 can communicate with the terminal 300 normally.

The embodiment of the present application provides a configuration method. The primary node sends a first request message carrying first indication information to the secondary node to enable the secondary node to determine the reason for updating the first configuration configured by the secondary node for the terminal, so that the secondary node can follow the An indication information determines the reason for updating the first configuration configured by the secondary node for the terminal, so that the secondary node provides the updated first configuration for the terminal. Compared with the prior art, the secondary node provides incremental configuration for the terminal on the basis of the first configuration. In this embodiment, the secondary node can provide the terminal with full configuration through the indication of the first indication information, thereby ensuring that the terminal and the secondary node side The configuration is the same.

Continuing to refer to FIG. 5, as a possible embodiment, after S102, the method provided in the embodiment of the present application further includes:

S103. The master node 100 sends the updated first configuration to the terminal 300.

Correspondingly, the terminal 300 receives the updated first configuration from the secondary node 200 from the primary node 100.

It is understandable that, in the embodiment of the present application, the master node 100 determines the updated first configuration from the first confirmation message, and can send the updated first configuration to the terminal 300.

The master node 100 may send the updated first configuration to the terminal 300 through RRC signaling. When the first indication information is the master node 100 configures the first signaling for the terminal 300, the master node 100 may send the RRC signaling to When the terminal 300 sends the first signaling, it may also send the first signaling to the terminal 300 while sending the RRC signaling, that is, the RRC signaling may also include the first signaling.

When the terminal 300 receives the RRC signaling and the first signaling at the same time, the terminal 300 will first execute the first signaling, release the first configuration configured by the secondary node 200 for the terminal 300, and then execute the RRC signaling to change the first One configuration is replaced with the updated first configuration.

As a possible embodiment, continuing to refer to FIG. 5, before step 101, the method provided in this embodiment of the present application may further include:

S104. The terminal 300 releases the first configuration configured by the secondary node 200 for the terminal 300.

In the embodiment of this application, the reason for triggering the terminal 300 to release the first configuration may be RRC re-establishment or the master node 100 may send the first signaling to the terminal 300. Since the reason for triggering the terminal 300 to release the first configuration is different, the first indication The reasons for updating the first configuration indicated by the information are also different, so the following will be introduced separately:

Scenario 1), RRC re-establishment scenario

Referring to FIG. 6, as a possible embodiment, the method provided in this embodiment of the present application may further include:

S105. The terminal 300 triggers the RRC re-establishment with the master node 100.

The process of the terminal 300 triggering the RRC re-establishment includes: the terminal 300 releases the first configuration configured by the secondary node 200 for the terminal 300, then performs cell reselection, and finally realizes the RRC re-establishment through interaction with the primary node 100.

It should be noted that in the embodiment of the present application, the preset terminal 300 is reselected to the cell covered by the master node 100. The master node 100 is a master node that provides services for the terminal 300 before the terminal 300 triggers RRC re-establishment.

Referring to FIG. 7, after the terminal 300 reselects the master node 100, the interaction process with the master node 100 includes:

S1051. The terminal 300 sends an RRC re-establishment request message to the master node 100.

Correspondingly, the master node 100 receives the RRC re-establishment request message from the terminal 300.

S1052. The master node 100 sends an RRC re-establishment message to the terminal 300.

Correspondingly, the terminal 300 receives the RRC re-establishment message from the master node 100, and performs corresponding configuration according to the RRC re-establishment message.

S1053. The terminal 300 sends an RRC re-establishment complete message to the master node 100.

Correspondingly, the master node 100 receives the RRC re-establishment complete message from the terminal 300.

It should be understood that when the terminal 300 triggers the RRC re-establishment process, it will release the first configuration provided by the secondary node 200, such as the secondary cell group configuration. The primary node 100 can request the secondary node 200 to re-establish the terminal 300 by sending a first request message. To provide configuration, the first request message includes first indication information indicating that RRC re-establishment occurs between the master node 100 and the terminal 300.

It should be noted that the reasons for the RRC re-establishment may include: the terminal 300 fails to perform the configuration of the master node 100 or the radio link failure (Radio Link Failure, RLF) occurs on the air interface between the terminal 300 and the master node 100. In this regard, the embodiment of the present application does not limit it.

The RRC re-establishment will cause the terminal 300 to release the first configuration configured by the secondary node 200 for the terminal 300. Therefore, the reasons for updating the first configuration configured by the secondary node 200 for the terminal 300 include: RRC re-establishment between the primary node 100 and the terminal 300 occurs. After the secondary node 200 receives the first indication information indicating that the RRC re-establishment occurs between the primary node 100 and the terminal 300, the secondary node 200 will provide the terminal 300 with the updated first configuration.

Optionally, in the update process of the first configuration triggered by the RRC re-establishment, the first configuration further includes a radio bearer configuration, which is used to configure a radio bearer between the secondary node 200 and the terminal 300. The radio bearer configuration includes at least a PDCP configuration, and the PDCP configuration may be DRB or SRB.

RRC re-establishment occurs between the master node 100 and the terminal 300. When the terminal 300 releases the first configuration, the PDCP entity will not be released, even if the PDCP entity is established with the secondary node 200. Therefore, the updated first configuration is still Including: incremental configuration of radio bearer configuration. The incremental configuration means that the secondary node 200 may only provide configuration parameters that are different from the radio bearer configuration of the first configuration.

Exemplarily, the incremental configuration of the radio bearer configuration may include re-establishment indication information of the PDCP entity of the radio bearer. The PDCP entity re-establishment indication information is used to instruct the terminal 300 to re-establish the PDCP entity.

The re-establishment of the PDCP entity is to implement the key update between the secondary node 200 and the terminal 300. The secondary node 200 may receive the secret key updated by the primary node 100 for the secondary node 200 in the first request message received from the primary node 100.

In a possible implementation manner, when the RRC re-establishment occurs between the terminal 300 and the master node 100, the secret key can also be updated accordingly. Therefore, the first request message also includes the information provided by the master node 100 for the slave node 200. An updated secret key, which is used for encryption and/or decryption of communication between the secondary node 200 and the terminal 300. For example, when the secondary node 200 receives the uplink data sent by the terminal 300, it needs to use the updated secret key to decrypt the data before further analysis and processing can be performed. Alternatively, when the secondary node 200 sends downlink data to the terminal 300, the updated secret key may be used to encrypt the data, so as to ensure the reliability of the downlink data transmission between the secondary node 200 and the terminal 300.

It should be noted that when the data radio bearer is initially established, the radio bearer configuration may include the length of the uplink PDCP sequence number and the length of the downlink PDCP sequence number. Since the length of the uplink PDCP sequence number and the length of the downlink PDCP sequence number are set when the data radio bearer is initially established It is provided by the terminal 300, therefore, the uplink PDCP sequence number length and the downlink PDCP sequence number length may not be included in the updated radio bearer configuration.

It should be understood that if an RRC re-establishment occurs between the terminal 300 and the master node 100, the master node 100 may determine that the terminal 300 releases the first configuration configured by the secondary node 200 for the terminal 300, and thus may send the first request to the secondary node 200 news.

Scenario 2). The master node 100 configures the terminal 300 for the terminal 300 to release or delete the signaling of the first configuration configured by the secondary node 200 for the terminal 300.

Referring to FIG. 8, as a possible embodiment, before S104, the method provided in the embodiment of the present application further includes:

S106: The master node 100 sends the first signaling to the terminal 300.

Correspondingly, the terminal 300 receives the first signaling from the master node 100.

In the embodiment of the present application, the first signaling is used to enable the terminal 300 to release or delete the first configuration configured by the secondary node 200 for the terminal 300.

When the terminal 300 executes the first signaling, the first configuration configured by the secondary node 200 for the terminal 300 is released. Therefore, the reasons for updating the first configuration configured by the secondary node 200 for the terminal 300 include: the primary node 100 configures the first signaling for the terminal 300. Where the master node 100 configures the first signaling for the terminal 300, it can be understood that the master node 100 will send the first signaling to the terminal 300, or the master node 100 has already sent the first signaling to the terminal 300. When the secondary node 200 receives the first instruction information that instructs the primary node 100 to configure the first instruction for the terminal 300, it triggers the secondary node 200 to provide the terminal 300 with the updated first configuration.

Specifically, when the master node 100 needs to perform one or more types of configurations on the terminal 300, for example, switch and change the PDCP version, that is, change from LTE PDCP to NR PDCP, or from NR PDCP to LTE PDCP, the master node 100 The first signaling may be sent to the terminal 300. Although the purpose of the primary node 100 sending the first signaling is to enable the terminal 300 to perform the related configuration of the new PDCP version, the terminal 300 will release or delete the first configuration configured by the secondary node 200 for the terminal 300 when performing the first signaling. Therefore, the master node 100 needs to notify the slave node 200 to reconfigure the first configuration or notify the slave node 200 to retain all the configurations of the first configuration currently configured for the terminal 300. At this time, the first request message includes an indication that the master node 100 is the terminal 300 configures the first indication information of the first signaling.

Optionally, the master node 100 may first send the first signaling to the terminal 300, and then send the first indication information to the secondary node 200, or may first send the first indication information to the secondary node 200, and after receiving the first signaling from the secondary node After the updated first configuration of 200, the first signaling and the updated first configuration are sent to the terminal 300 simultaneously through RRC signaling.

As a possible embodiment, the specific implementation of S103 may further include: the master node 100 sends the updated first configuration and first signaling to the terminal 300.

When the master node 100 wants to configure the terminal 300, because the master node 100 can determine that sending the first signaling to the terminal 300 will cause the terminal 300 to release or delete the first signaling configured by the secondary node 200 for the terminal 300 when performing the first signaling. Configuration. Therefore, to ensure the continuity of the communication between the terminal 300 and the secondary node 200, the first request message may be sent to the secondary node 200 before the first signaling is sent. When the primary node 100 receives the first confirmation message from the secondary node 200, Then, the updated first configuration and the first signaling included in the first confirmation message are sent to the terminal 300.

It should be understood that after receiving the first signaling from the autonomous node 100 and the updated first configuration at the same time, the terminal 300 will execute the first signaling first, release the first configuration, and then execute the updated first configuration.

Optionally, when the terminal 300 executes the first signaling, the first configuration is released, and the first configuration also includes the radio bearer configuration. Since the terminal 300 releases the PDCP entity when the first signaling is executed, the secondary node 200 is updated as The reason for the first configuration configured by the terminal 300 is that when the master node 100 configures the first signaling for the terminal 300, in addition to the full configuration of the secondary cell group, the updated first configuration also includes: the full configuration of the radio bearer configuration. That is, even if the values corresponding to all the configuration items of the radio bearer configuration in the first configuration previously provided for the terminal 300 have not changed, all the configuration items of all the radio bearer configurations need to be provided again. The values corresponding to all configuration items of the radio bearer configuration in the updated first configuration may be the same as the corresponding values of each configuration item of the radio bearer configuration in the first configuration, or may be different from the values of the radio bearer configuration in the first configuration. The corresponding value of each configuration item configured.

It should be noted that the definition of the full configuration of the radio bearer configuration can refer to the definition of the full configuration of the secondary cell group configuration described above, which will not be repeated here.

It should be understood that if the primary node 100 configures the first signaling for the terminal 300, the primary node 100 can determine that the terminal 300 will release the first configuration configured by the secondary node 200 for the terminal 300, and thus can send the first signaling to the secondary node 200. Request message.

The two different scenarios described in the embodiments of the present application are RRC re-establishment between the master node 100 and the terminal 300 and the master node 100 provides the terminal 300 with first signaling. The primary node 100 triggers the modification process of the secondary station. Therefore, the first indication information in the two scenarios can be two independent cells, or two different values of one cell. The cell can be The reason for triggering the modification process of an auxiliary station.

It can be understood that RRC re-establishment occurs between the terminal 300 and the master node 100, the terminal 300 releases the first configuration and the terminal 300 receives the first signaling, and the terminal 300 releases the first configuration are two parallel solutions.

Referring to FIG. 6 or FIG. 8, as a possible embodiment, after S103, the method provided in the embodiment of the present application further includes:

S107. The terminal 300 sends a configuration complete message to the master node 100.

Correspondingly, the master node 100 receives the configuration completion message from the terminal 300.

The configuration complete message is used to indicate that the terminal 300 has completed the configuration with the secondary node 200 according to the updated first configuration. The terminal 300 may send a configuration complete message to the master node 100 through RRC signaling.

Optionally, the terminal 300 may send the configuration complete message through transparent transmission, that is, after the configuration complete message is encapsulated in the container, the configuration complete message is sent to the master access node 100 by carrying the first configuration complete message of the container . It should be understood that the first configuration complete message is used to make the master node 100 determine that the terminal 300 has completed the configuration with the secondary node 200 according to the updated first configuration.

Optionally, the master node 100 may also determine in another manner that the terminal 300 has completed the configuration with the slave node 200 according to the updated first configuration. For example, the master node 100 may directly determine according to the configuration completion message that the terminal 300 has completed the configuration with the secondary node 200 according to the updated first configuration. The embodiments of this application do not limit this.

S108: The master node 100 sends a configuration complete message to the slave node 200.

Correspondingly, the secondary node 200 receives the configuration completion information from the master node 100.

After determining that the terminal 300 has completed the configuration with the secondary node 200 according to the updated first configuration, the master node 100 sends the configuration completion information to the secondary node 200 so that the secondary node 200 determines that the terminal 300 has completed the configuration update.

For example, after receiving the first configuration completion message, the master node 100 sends the configuration completion information carried by it to the secondary node 200. The configuration complete message is used to make the secondary node 200 determine that the terminal 300 has completed the configuration with the secondary node 200 according to the updated first configuration.

The foregoing mainly introduces the solution of the embodiment of the present application from the perspective of interaction between various devices. It can be understood that each device, such as the master node 100, the slave node 200, the terminal 300, etc., includes hardware structures and/or software modules corresponding to each function in order to implement the above functions. Those skilled in the art should easily realize that in combination with the units and algorithm steps of the examples described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

The embodiment of the present application may divide the main node 100, the auxiliary node 200, and the terminal 300 into functional units according to the foregoing method examples. For example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated in One processing unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.

The method of the embodiment of the present application is described above in conjunction with FIG. 5 to FIG. 8, and the communication device provided in the embodiment of the present application for performing the foregoing method is described below. Those skilled in the art can understand that the method and the device can be combined and referenced with each other. The communication device provided in the embodiment of the present application can execute the steps performed by the master node 100, the slave node 200, and the terminal 300 in the above configuration method.

The following is an example of dividing each function module corresponding to each function:

In the case of using an integrated unit, FIG. 9 shows a communication device involved in the foregoing embodiment, and the communication device may include: a communication unit 101.

Optionally, the communication device may further include: a processing unit 102.

In one example, the communication device is an access network device, or a chip applied to the access network device. The access network device may be the primary node 100 or the secondary node 200 that communicates with the terminal 300 in a DC scenario. In this case, the communication unit 101 is used to support the communication device to perform the configuration method provided in the above embodiment, for example, to perform S101 and S103 performed by the master node 100 in FIG. 5, or perform S101 and S103 performed by the master node 100 in FIG. S102 executed by 200.

In another example, the communication device is the terminal 300 or a chip applied in the terminal 300. In this case, the communication device may further include: a processing unit 102 configured to support the communication device to execute the configuration method provided in the foregoing embodiment, for example, execute S104 executed by the terminal 300 in FIG. 5.

In a possible embodiment, the communication unit 101 is configured to support the communication device to execute the configuration method provided in the foregoing embodiment, for example, execute S107 executed by the terminal 300 in FIG. 6.

Optionally, the communication device may further include a storage unit. The storage unit is used to store computer program code, and the computer program code includes instructions. If the communication device is applied to the master node 100, the storage unit can be a storage unit in the chip (for example, a register, cache, etc.), or a storage unit in the master node 100 located outside the chip (for example, only Read memory, random access memory, etc.).

In the case of using an integrated unit, FIG. 10 shows a schematic diagram of a possible logical structure of the communication device involved in the foregoing embodiment. The communication device includes: a processing module 112 and a communication module 113. The processing module 112 is used to control and manage the actions of the communication device. For example, the processing module 112 is used to perform information/data processing steps in the communication device. The communication module 113 is used to support the steps of sending or receiving information/data in the communication device.

In a possible embodiment, the communication device may further include a storage module 111 for storing program codes and data that the communication device can use.

Exemplarily, the communication device is the master node 100 or a chip applied to the master node 100. In this case, the communication module 113 is used to support the communication device to execute the configuration method provided in the foregoing embodiment, for example, to execute S101 and S103 performed by the master node 100 in FIG. 5.

Exemplarily, the communication device is the auxiliary node 200 or a chip applied in the auxiliary node 200. In this case, the communication module 113 is used to support the communication device to execute the configuration method provided in the foregoing embodiment, for example, to execute S102 executed by the secondary node 200 in FIG. 5.

Exemplarily, when the communication device is the terminal 300 or a chip applied in the terminal 300. In this case, the communication module 113 is used to support the communication device to execute the configuration method provided in the foregoing embodiment, for example, to execute S107 performed by the terminal 300 in FIG. 6. The processing module 112 is configured to support the communication device to execute the configuration method provided in the foregoing embodiment, for example, execute S104 executed by the terminal 300 in FIG. 5.

The processing module 112 may be a processor or a controller, for example, a central processing unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, Hardware components or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of the present invention. The processor may also be a combination that implements computing functions, for example, a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and so on. The communication module 113 may be a transceiver, a transceiver circuit, or a communication interface. The storage module 111 may be a memory.

When the processing module 112 is the processor 41 or the processor 45, the communication module 113 is the communication interface 43 or the transceiver, and the storage module 111 is the memory 42, the communication device involved in this application may be the communication device shown in FIG. 11. The communication device includes a processor 41, a communication line 44, and at least one communication interface (in FIG. 11, the communication interface 43 is included as an example for illustration).

Optionally, the communication device may further include a memory 42.

The processor 41 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more programs for controlling the execution of the program of this application. integrated circuit.

The communication line 44 may include a path to transmit information between the aforementioned components.

The communication interface 43 uses any device such as a transceiver to communicate with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. .

The memory 42 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions The dynamic storage device can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disk storage, optical disc storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can be used by a computer Any other media accessed, but not limited to this. The memory can exist independently and is connected to the processor through the communication line 44. The memory can also be integrated with the processor.

The memory 42 is used to store computer-executable instructions for executing the solution of the present application, and the processor 41 controls the execution. The processor 41 is configured to execute computer-executable instructions stored in the memory 42 to implement the configuration method provided in the following embodiments of the present application.

Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application program code, which is not specifically limited in the embodiments of the present application.

In a specific implementation, as an embodiment, the processor 41 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 11.

In specific implementation, as an embodiment, the communication device may include multiple processors, such as the processor 41 and the processor 45 in FIG. 11. Each of these processors can be a single-CPU (single-CPU) processor or a multi-core (multi-CPU) processor. The processor here may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).

FIG. 12 is a schematic structural diagram of a chip 150 provided by an embodiment of the present application. The chip 150 includes one or more (including two) processors 1510 and a communication interface 1530.

Optionally, the chip 150 further includes a memory 1540. The memory 1540 may include a read-only memory and a random access memory, and provides operation instructions and data to the processor 1510. A part of the memory 1540 may also include a non-volatile random access memory (NVRAM).

In some embodiments, the memory 1540 stores the following elements, execution modules or data structures, or their subsets, or their extended sets.

In the embodiment of the present application, the corresponding operation is executed by calling the operation instruction stored in the memory 1540 (the operation instruction may be stored in the operating system).

The processor 1510 controls processing operations of any one of the master node 100, the slave node 200, and the terminal 300. The processor 1510 may also be referred to as a central processing unit (CPU).

The memory 1540 may include a read-only memory and a random access memory, and provides instructions and data to the processor 1510. A part of the memory 1540 may also include a non-volatile random access memory (NVRAM). For example, in an application, the memory 1540, the communication interface 1530, and the memory 1540 are coupled together through a bus system 1520, where the bus system 1520 may include a power bus, a control bus, and a status signal bus in addition to a data bus. However, for clarity of description, various buses are marked as the bus system 1520 in FIG. 12.

The methods disclosed in the foregoing embodiments of the present application may be applied to the processor 1510 or implemented by the processor 1510. The processor 1510 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the foregoing method can be completed by hardware integrated logic circuits in the processor 1510 or instructions in the form of software. The above-mentioned processor 1510 may be a general-purpose processor, a digital signal processing (digital signal processing, DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or Other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory 1540, and the processor 1510 reads the information in the memory 1540, and completes the steps of the foregoing method in combination with its hardware.

In a possible implementation manner, the communication interface 1530 is used to perform the receiving and sending steps of the primary node 100, the secondary node 200 or the terminal 300 in any of the foregoing embodiments. The processor 1510 is configured to execute the processing steps of the master node 100, the slave node 200, or the terminal 300 in any of the foregoing embodiments.

The above communication unit may be an interface circuit or communication interface of the device for receiving signals from other devices. For example, when the device is implemented in the form of a chip, the communication unit is an interface circuit or communication interface used by the chip to receive signals or send signals from other chips or devices.

In the foregoing embodiment, the instructions stored in the memory for execution by the processor may be implemented in the form of a computer program product. The computer program product may be written in the memory in advance, or it may be downloaded and installed in the memory in the form of software.

The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices. Computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, computer instructions can be transmitted from a website, computer, server, or data center through a cable (such as Coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means to transmit to another website, computer, server or data center. The computer-readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server or a data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk, SSD).

In one aspect, a computer-readable storage medium is provided, and instructions are stored in the computer-readable storage medium. When the instructions are executed, an access network device or a chip applied to the access network device executes the configuration provided in the foregoing embodiment. The operations performed by the master node 100 in the method, for example, execute S101 and S103 performed by the master node 100 in FIG. 5.

On the other hand, a computer-readable storage medium is provided, and instructions are stored in the computer-readable storage medium. When the instructions are executed, an access network device or a chip applied to the access network device executes the above-mentioned embodiments. The operation performed by the secondary node 200 in the configuration method, for example, performs S102 performed by the secondary node 200 in FIG. 5.

In another aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores instructions. When the instructions are executed, the terminal or a chip applied to the terminal executes the configuration method provided in the above-mentioned embodiment. Or the operation performed by the UE, for example, S104 performed by the terminal 300 in FIG. 5 is performed.

The aforementioned readable storage medium may include: U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk and other media that can store program codes.

On the one hand, a computer program product including instructions is provided. The computer program product stores instructions. When the instructions are executed, an access network device or a chip applied to the access network device executes the configuration method provided in the foregoing embodiment. The operations performed by the master node 100 in FIG. 5, for example, execute S101 and S103 performed by the master node 100 in FIG.

On the other hand, a computer program product including instructions is provided. The computer program product stores instructions. When the instructions are executed, an access network device or a chip applied to the access network device executes the configuration provided in the foregoing embodiment. The operations performed by the secondary node 200 in the method, for example, perform S102 performed by the secondary node 200 in FIG. 5.

In another aspect, a computer program product including instructions is provided. The computer program product stores instructions. When the instructions are executed, the terminal 300 or a chip applied to the terminal 300 executes the configuration method provided in the foregoing embodiment. The operation performed by the terminal or UE, for example, performs S104 performed by the terminal 300 in FIG. 5.

In one aspect, a chip is provided. The chip is applied to an access network device. The chip includes at least one processor and a communication interface, the communication interface is coupled to the at least one processor, and the processor is used to run instructions to execute the instructions provided in the above embodiments. The operations performed by the master node 100 in the configuration method, for example, execute S101 and S103 performed by the master node 100 in FIG. 5.

On the other hand, a chip is provided. The chip is applied to an access network device. The chip includes at least one processor and a communication interface, the communication interface is coupled to the at least one processor, and the processor is used to run instructions to execute the above-mentioned embodiments. The operations performed by the secondary node 200 in the provided configuration method, for example, perform S102 performed by the secondary node 200 in FIG. 5.

In another aspect, a chip is provided, the chip is applied to the terminal 300, the chip includes at least one processor and a communication interface, the communication interface is coupled to the at least one processor, and the processor is used to execute instructions to execute the configuration provided in the above embodiment The operations performed by the terminal or UE in the method, for example, perform S104 performed by the terminal 300 in FIG. 5.

In another embodiment of the present application, a communication system is also provided, including a master node 100, a slave node 200, and a terminal 300. The communication system can be adapted to the architecture shown in FIG. 1, wherein the master node 100 can execute The operations performed by the master node 100 in FIG. 5, for example, perform S101 and S103 performed by the master node 100 in FIG. 5. The secondary node 200 may perform the operations performed by the secondary node 200 in FIG. 5, for example, perform S102 performed by the secondary node 200 in FIG. 5. The terminal 300 may perform operations performed by the terminal 300 in FIG. 5, for example, perform S104 performed by the terminal 300 in FIG. 5.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it may be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices. Computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, computer instructions may be transmitted from a website, computer, server, or data center through a cable (such as Coaxial cable, optical fiber, digital subscriber line (digital subscriber line, referred to as DSL)) or wireless (such as infrared, wireless, microwave, etc.) transmission to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that can be accessed by a computer or includes one or more data storage devices such as a server or a data center that can be integrated with the medium. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

Although the present application is described in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art can understand and realize the disclosure by looking at the drawings, the disclosure, and the appended claims. Other changes to the embodiment. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "one" does not exclude multiple. A single processor or other unit may implement several functions listed in the claims. Certain measures are described in mutually different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

Although the application has been described in combination with specific features and embodiments, it is obvious that various modifications and combinations can be made without departing from the spirit and scope of the application. Accordingly, this specification and drawings are merely exemplary descriptions of the application defined by the appended claims, and are deemed to have covered any and all modifications, changes, combinations or equivalents within the scope of the application. Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these modifications and variations.

Claims

A configuration method, characterized in that it comprises:

The primary node sends a first request message to the secondary node, where the first request message includes first indication information, and the first indication information is used to instruct the secondary node to update the reason for the first configuration configured by the secondary node for the terminal , The first configuration includes a secondary cell group configuration, and the secondary cell group configuration is used to configure a cell of the secondary node;

The master node receives a first confirmation message from the secondary node, the first confirmation message includes an updated first configuration, and the updated first configuration includes a full configuration of the secondary cell group configuration.
The method according to claim 1, wherein the first request message further includes a secret key updated by the primary node, and the updated secret key is used for communication between the secondary node and the terminal. Encryption and/or decryption.
The method according to claim 1 or 2, wherein the reason for updating the first configuration configured by the secondary node for the terminal includes: a radio resource control RRC re-establishment occurs between the primary node and the terminal Procedure, the RRC re-establishment procedure triggers the terminal to release the first configuration.
The method according to claim 3, wherein the first configuration further comprises a radio bearer configuration, the radio bearer configuration is used to configure a radio bearer between the secondary node and the terminal, and after the update The first configuration also includes:

The incremental configuration of the radio bearer configuration, the incremental configuration of the radio bearer configuration includes the packet data convergence protocol PDCP entity re-establishment indication information of the radio bearer.
The method according to claim 4, wherein the incremental configuration of the radio bearer configuration does not include the length of the uplink PDCP sequence number and the length of the downlink PDCP sequence number.
The method according to claim 1 or 2, wherein the reason for updating the first configuration configured by the secondary node for the terminal includes: the primary node configures the first signaling for the terminal, and the A signaling triggers the terminal to release the first configuration.
The method according to claim 6, wherein the first configuration further comprises a radio bearer configuration, and the updated first configuration further comprises:

The full configuration of the radio bearer configuration.
The method according to any one of claims 1-7, wherein the method further comprises:

The master node sends the updated first configuration to the terminal.
The method according to claim 8, wherein the method further comprises:

The master node receives a configuration complete message from the terminal; the configuration complete message is used to indicate that the terminal has completed the configuration with the secondary node according to the updated first configuration;

The master node sends the configuration complete message to the slave node.
A configuration method, characterized in that it comprises:

The secondary node receives a first request message from the primary node, the first request message includes first indication information, and the first indication information is used to instruct the secondary node to update the first configuration configured by the secondary node for the terminal Reason; the first configuration includes a secondary cell group configuration, and the secondary cell group configuration is used to configure the cell of the secondary node;

The secondary node sends a first confirmation message to the primary node, where the first confirmation message includes the updated first configuration, and the updated first configuration includes the full configuration of the secondary cell group configuration.
The method according to claim 10, wherein the first request message further includes a secret key updated by the primary node, and the updated secret key is used for communication between the secondary node and the terminal. Encryption and/or decryption.
The method according to claim 10 or 11, wherein the reason for updating the first configuration configured by the secondary node for the terminal includes: a radio resource control RRC re-establishment occurs between the primary node and the terminal Procedure, the RRC re-establishment procedure triggers the terminal to release the first configuration.
The method according to claim 12, wherein the first configuration further comprises a radio bearer configuration, the radio bearer configuration is used to configure a radio bearer between the secondary node and the terminal, and after the update The first configuration also includes:

The incremental configuration of the radio bearer configuration, the incremental configuration of the radio bearer configuration includes the packet data convergence protocol PDCP entity re-establishment indication information of the radio bearer.
The method according to claim 13, wherein the incremental configuration of the radio bearer configuration does not include the length of the uplink packet data convergence protocol PDCP sequence number and the length of the downlink PDCP sequence number.
The method according to claim 10 or 11, wherein the reason for updating the first configuration configured by the secondary node for the terminal includes: the primary node configures the first signaling for the terminal, and the A signaling triggers the terminal to release the first configuration.
The method according to claim 15, wherein the first configuration further comprises a radio bearer configuration, and the updated first configuration further comprises:

The full configuration of the radio bearer configuration.
The method according to any one of claims 10-16, wherein the method further comprises:

The secondary node receives a configuration complete message from the primary node, where the configuration complete message is used to indicate that the terminal has completed the configuration with the secondary node according to the updated first configuration.
A configuration method, characterized in that it comprises:

Releasing the first configuration configured by the secondary node for the terminal, the first configuration including a secondary cell group configuration, and the secondary cell group configuration is used to configure a cell of the secondary node;

Receiving an updated first configuration from a secondary node from the primary node, where the updated first configuration includes a full configuration of the secondary cell group configuration.
The method of claim 18, wherein the method further comprises:

Send a configuration complete message to the master node, where the configuration complete message is used to indicate that the terminal has completed the configuration with the secondary node according to the updated first configuration.
The method according to claim 18 or 19, wherein the method further comprises:

Perform a radio resource control RRC re-establishment process with the master node,

The terminal releases the first configuration when the RRC re-establishment procedure is triggered.
The method according to claim 20, wherein the first configuration further comprises a radio bearer configuration, the radio bearer configuration is used to configure a radio bearer between the secondary node and the terminal, and after the update The first configuration also includes:

The incremental configuration of the radio bearer configuration, the incremental configuration of the radio bearer configuration includes the packet data convergence protocol PDCP entity re-establishment indication information of the radio bearer.
The method according to claim 21, wherein the incremental configuration of the radio bearer configuration does not include the length of the uplink PDCP sequence number and the length of the downlink PDCP sequence number.
The method according to claim 18 or 19, wherein the method further comprises:

Receiving first signaling from the master node, where the first signaling triggers the terminal to release the first configuration.
The method according to claim 23, wherein the first configuration further comprises a radio bearer configuration, and the updated first configuration further comprises:

The full configuration of the radio bearer configuration.
A communication device, characterized by comprising:

The communication unit is configured to send a first request message to the secondary node, where the first request message includes first indication information, and the first indication information is used to instruct the secondary node to update the first configuration of the secondary node for the terminal. The reason for the configuration, the first configuration includes a secondary cell group configuration, and the secondary cell group configuration is used to configure the cell of the secondary node;

The communication unit is further configured to receive a first confirmation message from the secondary node, where the first confirmation message includes an updated first configuration, and the updated first configuration includes the configuration of the secondary cell group Full configuration.
The apparatus according to claim 25, wherein the first request message further includes a secret key updated by the master node, and the updated secret key is used for encryption and communication between the secondary node and the terminal. /Or decrypt.
The apparatus according to claim 25 or 26, wherein the reason for updating the first configuration configured by the secondary node for the terminal includes: a radio resource control RRC re-establishment process occurs between the primary node and the terminal, The RRC re-establishment process triggers the terminal to release the first configuration.
The apparatus according to claim 27, wherein the first configuration further comprises a radio bearer configuration, and the radio bearer configuration is used to configure a radio bearer between the secondary node and the terminal, and after the update The first configuration also includes:

The incremental configuration of the radio bearer configuration, the incremental configuration of the radio bearer configuration includes the packet data convergence protocol PDCP entity re-establishment indication information of the radio bearer.
The apparatus according to claim 28, wherein the incremental configuration of the radio bearer configuration does not include the length of the uplink PDCP sequence number and the length of the downlink PDCP sequence number.
The apparatus according to claim 25 or 26, wherein the reason for updating the first configuration configured by the secondary node for the terminal includes: the primary node configures first signaling for the terminal, and the first signaling Let the terminal be triggered to release the first configuration.
The apparatus according to claim 30, wherein the first configuration further comprises a radio bearer configuration, and the updated first configuration further comprises:

The full configuration of the radio bearer configuration.
The device according to any one of claims 25-31, wherein the communication unit is further configured to send the updated first configuration to the terminal.
The device according to claim 32, wherein the communication unit is further configured to:

Receiving a configuration complete message from the terminal; the configuration complete message is used to indicate that the terminal has completed the configuration with the secondary node according to the updated first configuration;

Sending the configuration complete message to the secondary node.
A communication device, characterized by comprising:

The communication unit is configured to receive a first request message from the master node, where the first request message includes first indication information, and the first indication information is used to instruct the secondary node to update the first configuration configured by the secondary node for the terminal The reason; the first configuration includes a secondary cell group configuration, and the secondary cell group configuration is used to configure the cell of the secondary node;

The communication unit is further configured to send a first confirmation message to the master node, where the first confirmation message includes an updated first configuration, and the updated first configuration includes the entire configuration of the secondary cell group Configuration.
The device according to claim 34, wherein the first request message further includes a secret key updated by the master node, and the updated secret key is used for communication between the secondary node and the terminal. Encryption and/or decryption.
The apparatus according to claim 34 or 35, wherein the reason for updating the first configuration configured by the secondary node for the terminal includes: a radio resource control RRC re-establishment occurs between the primary node and the terminal Procedure, the RRC re-establishment procedure triggers the terminal to release the first configuration.
The apparatus according to claim 36, wherein the first configuration further comprises a radio bearer configuration, the radio bearer configuration is used to configure a radio bearer between the secondary node and the terminal, and the updated The first configuration also includes:

The incremental configuration of the radio bearer configuration, the incremental configuration of the radio bearer configuration includes the packet data convergence protocol PDCP entity re-establishment indication information of the radio bearer.
The apparatus according to claim 37, wherein the incremental configuration of the radio bearer configuration does not include the length of the uplink packet data convergence protocol PDCP sequence number and the length of the downlink PDCP sequence number.
The apparatus according to claim 34 or 35, wherein the reason for updating the first configuration configured by the secondary node for the terminal includes: the primary node configures the first signaling for the terminal, and the A signaling triggers the terminal to release the first configuration.
The apparatus according to claim 39, wherein the first configuration further comprises a radio bearer configuration, and the updated first configuration further comprises:

The full configuration of the radio bearer configuration.
The device according to any one of claims 34-40, wherein the communication unit is further configured to receive a configuration complete message from the master node, and the configuration complete message is used to indicate that the terminal has The updated first configuration completes the configuration with the secondary node.
A communication device, characterized by comprising:

A processing unit, configured to release a first configuration configured by a secondary node for the terminal, the first configuration includes a secondary cell group configuration, and the secondary cell group configuration is used to configure a cell of the secondary node;

The communication unit is configured to receive the updated first configuration from the secondary node from the primary node, where the updated first configuration includes the full configuration of the secondary cell group configuration.
The device according to claim 42, wherein the communication unit is further configured to:

Send a configuration complete message to the master node, where the configuration complete message is used to indicate that the terminal has completed the configuration with the secondary node according to the updated first configuration.
The device according to claim 42 or 43, wherein the processing unit is further configured to:

Performing a radio resource control RRC re-establishment process with the master node;

The first configuration is released when the RRC re-establishment process is triggered.
The apparatus according to claim 44, wherein the first configuration further comprises a radio bearer configuration, and the radio bearer configuration is used to configure a radio bearer between the secondary node and the terminal, and after the update The first configuration also includes:

The incremental configuration of the radio bearer configuration, the incremental configuration of the radio bearer configuration includes the packet data convergence protocol PDCP entity re-establishment indication information of the radio bearer.
The apparatus according to claim 45, wherein the incremental configuration of the radio bearer configuration does not include the length of the uplink PDCP sequence number and the length of the downlink PDCP sequence number.
The device according to claim 42 or 43, wherein the communication unit is further configured to:

Receiving first signaling from the master node, where the first signaling triggers the terminal to release the first configuration.
The apparatus according to claim 47, wherein the first configuration further comprises a radio bearer configuration, and the updated first configuration further comprises:

The full configuration of the radio bearer configuration.
A chip, characterized in that, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used to run a computer program or instruction to implement as claimed in claims 1-9, 10. In the method described in any one of -17 and 18-24, the communication interface is used to communicate with modules other than the chip.
A communication device, characterized by comprising: a processor, the processor is coupled with a memory, the memory is used to store a computer program or instruction, and the processor is used to execute the computer program or instruction in the memory to make the connection The network access device executes the method described in any one of claims 1-9.
A communication device, characterized by comprising: a processor, the processor is coupled with a memory, the memory is used to store a computer program or instruction, and the processor is used to execute the computer program or instruction in the memory to make the connection The network access device executes the method according to any one of claims 10-17.
A communication device, characterized by comprising: a processor, the processor is coupled with a memory, the memory is used to store a computer program or instruction, and the processor is used to execute the computer program or instruction in the memory, so that the terminal Perform the method of any one of claims 18-24.
A computer-readable storage medium for storing computer programs or instructions, which when executed, cause the computer to execute any of claims 1-9, 10-17, and 18-24 The method described in one item.
A communication system, characterized by comprising: the communication device according to any one of claims 25-33, the communication device according to any one of claims 34-41, and any one of claims 42-48 The communication device.
A communication device for executing the method according to any one of claims 1-9, 10-17 and 18-24.