WO2021244572A1

WO2021244572A1 - Mcg suspension method, apparatus, user equipment and network device

Info

Publication number: WO2021244572A1
Application number: PCT/CN2021/097911
Authority: WO
Inventors: 刘选兵; 鲍炜; 杨晓东
Original assignee: 维沃移动通信有限公司
Priority date: 2020-06-05
Filing date: 2021-06-02
Publication date: 2021-12-09
Also published as: CN113766585A; CN113766585B

Abstract

Disclosed by the present application are a master cell group (MCG) suspension method, apparatus, user equipment (UE) and network device, the MCG suspension method being applied to a first UE of a communication terminal, and the first UE being configured with an MCG and a secondary cell group (SCG). The MCG suspension method comprises: after determining to suspend an MCG connection, sending an MCG suspension request message to a first network device, the MCG suspension request message comprising first information, and the first information being used for instructing the MCG to suspend or for the first UE to leave the MCG; or, after determining to suspend the MCG connection, locally suspending the MCG connection.

Description

MCG suspension method, device, user equipment and network equipment

Cross-references to related applications

This application claims the priority of Chinese Patent Application No. 202010507892.X filed in China on June 5, 2020, the entire content of which is incorporated herein by reference.

Technical field

This application belongs to the field of communication technology, and specifically relates to an MCG suspension method, device, user equipment, and network equipment.

Background technique

With the development of communication technology, in the long-term evolution system, dual connectivity (DC) technology is introduced, which can also be referred to as multi-radio dual connectivity (MR-DC).

As shown in Figure 1, based on DC, a radio bearer can be established between user equipment (UE) and master evolved Node B (MeNB), and between UE and secondary eNB (SeNB). Service transmission, which can achieve higher data rate service transmission. When the UE is working in dual connectivity mode, the UE will be configured with 2 cell groups (ie, Master Cell Group (MCG) and Secondary Cell Group (SCG))

Currently, there are not only single-user identification module (Subscriber Identification Module, SIM) card terminals but also dual-SIM or multi-SIM card terminals, collectively referred to as multi-SIM UEs. For a communication terminal that supports multi-card communication, if the UE1 corresponding to one of the cards has dual connectivity capabilities, and the UE2 corresponding to the other card in the communication device needs the MCG resources of UE1 when it initiates services, how to suspend the MCG connection of UE1 is an urgent need to solve The problem. In addition, how to resume MCG after MCG is suspended is also a problem that needs to be solved.

Summary of the invention

The purpose of the embodiments of the present application is to provide an MCG suspension method, device, user equipment, and network equipment, which can solve the problem of how to suspend the MCG.

In order to solve the above technical problems, this application is implemented as follows:

In the first aspect, an MCG suspension method is provided, which is applied to a first user equipment UE of a communication terminal, and the first UE is configured with a primary cell group MCG and a secondary cell group SCG. The method includes: determining to suspend the MCG connection Afterwards, send an MCG suspension request message to the first network device, where the MCG suspension request message includes first information, and the first information is used to instruct the MCG suspension or the first UE to leave the MCG; or After confirming that the MCG connection is suspended, the MCG connection is suspended locally.

In a second aspect, an MCG suspension method is provided, which is applied to a first network device, and the method includes: receiving an MCG suspension request message sent by a first UE, wherein the MCG suspension request message includes instructions for indicating The MCG is suspended or the first UE leaves the first information of the MCG; or, receiving the MCG connection recovery request message.

In a third aspect, an MCG suspension device is provided, which is applied to a first user equipment UE of a communication terminal. The first UE is configured with a primary cell group MCG and a secondary cell group SCG. The device includes: a determining module for Determine to suspend the MCG connection; the first sending module is configured to send an MCG suspension request message to the first network device; wherein, the MCG suspension request message includes first information, and the first information is used to indicate MCG suspension Or the first UE leaves the MCG; or, the first suspend module is configured to locally suspend the MCG connection after determining that the MCG connection is suspended.

In a fourth aspect, an MCG suspension device is provided, which is applied to a first network device, and the device includes: a first receiving module for receiving an MCG suspension request message, wherein the MCG suspension request message includes The first information used to indicate that the MCG is suspended or the first UE leaves the MCG; or, the second receiving module is used to receive the MCG connection recovery request message.

In a fifth aspect, a UE is provided. The UE includes a processor, a memory, and a program or instruction that is stored on the memory and can run on the processor. When the program or instruction is executed by the processor, the The steps of the MCG suspend method.

In a sixth aspect, a network device is provided. The network device includes a processor, a memory, and a program or instruction that is stored on the memory and can run on the processor, and the program or instruction is executed by the processor. When executed, the steps of the MCG suspension method in the second aspect are implemented.

In a seventh aspect, a readable storage medium is provided, and a program or instruction is stored on the readable storage medium. When the program or instruction is executed by a processor, it implements the steps of the MCG suspension method in the first aspect, or implements such as The steps of the MCG suspension method in the second aspect.

In an eighth aspect, a chip is provided. The chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or an instruction to implement the MCG suspension method in the first aspect, or the The processor is used for the network device to run programs or instructions to implement the MCG suspension method in the second aspect.

In a ninth aspect, a computer software product is provided, the computer software product is stored in a non-volatile storage medium, and the software product is configured to be executed by at least one processor to implement MCG as in the first aspect The steps of the suspending method, or the steps of implementing the MCG suspending method as in the second aspect.

In a tenth aspect, a UE is provided, and the UE is configured to perform the MCG suspension method as in the first aspect.

In an eleventh aspect, a network device is provided, and the network device is configured to execute the MCG suspension method as in the second aspect.

In the embodiment of the present application, the first UE in the dual connection of the multi-card communication terminal realizes the suspension of the MCG by sending to the first network device an MCG suspension request message carrying an instruction to suspend the MCG or the first UE to leave the MCG. As a result, it is possible to support other UEs of multi-card communication terminals to use UE resources related to the MCG connection for data transmission, reduce the interruption of UE tasks, maximize the use of UE resources, and improve user experience. In addition, through the MCG link fast recovery process in the embodiment of the present application, the suspended MCG connection can be quickly recovered, so as to realize the recovery of data transmission by the first UE through the MCG as soon as possible, and maximize the use of MCG resources.

Description of the drawings

FIG. 1 is a schematic diagram of a traditional dual connectivity architecture provided by an embodiment of the present application;

2 is a schematic diagram of the architecture of a wireless communication system provided by an embodiment of the present application;

FIG. 3 is one of the schematic flowcharts of an MCG suspension method provided by an embodiment of this application;

FIG. 4 is the second schematic flowchart of an MCG suspension method provided by an embodiment of this application;

FIG. 5 is the third schematic flowchart of an MCG suspension method provided by an embodiment of this application;

FIG. 6 is a schematic flowchart of a method for fast recovery of an MCG link according to an embodiment of the application;

FIG. 7 is one of the structural schematic diagrams of an MCG suspension device provided by an embodiment of this application;

FIG. 8 is the second structural diagram of an MCG suspension device provided by an embodiment of this application;

FIG. 9 is a schematic structural diagram of an MCG link rapid recovery device provided by an embodiment of the application;

FIG. 10 is the third structural diagram of an MCG suspension device provided by an embodiment of this application;

11 is a fourth structural diagram of an MCG suspension device provided by an embodiment of this application;

FIG. 12 is a schematic structural diagram of a communication device provided by an embodiment of this application;

FIG. 13 is a schematic diagram of hardware of a communication terminal provided by an embodiment of the application.

detailed description

The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

The terms "first" and "second" in the specification and claims of this application are used to distinguish similar objects, but not to describe a specific sequence or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" It is usually one type, and the number of objects is not limited. For example, the first object may be one or more. In addition, "and/or" in the description and claims means at least one of the connected objects, and the character "/" generally means that the associated objects before and after are in an "or" relationship.

It is worth noting that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE)/LTE-Advanced (LTE-A) systems, and can also be used in other wireless communication systems, such as code Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (Frequency Division Multiple Access, FDMA), Orthogonal Frequency Division Multiple Access (Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the aforementioned systems and radio technologies as well as other systems and radio technologies. However, the following description describes the New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the description below, although these technologies can also be applied to applications other than NR system applications, such as the 6th generation ( 6th Generation, 6G) communication system.

Fig. 2 shows a block diagram of a wireless communication system to which an embodiment of the present application can be applied. The wireless communication system includes a first network device 11, a second network device 12, and a communication terminal 13. The communication terminal 13 is a multi-card terminal, and the multi-card terminal may include a first UE corresponding to the SIM card 1 and a second UE corresponding to the SIM card 2. It should be noted that a communication terminal may be a physical carrier of multiple logical UE functions, and each logical UE function corresponds to a SIM card. In the various embodiments of this specification, the logical UE function is also referred to as the UE corresponding to the SIM card, the UE corresponding to the card, or the UE of the communication terminal. In addition, the first network device 11 may be a primary base station, and the second network device 12 may be a secondary base station; of course, the first network device 11 may also be a secondary base station, and the second network device 12 may be a primary base station, which is not done in this embodiment. Specific restrictions.

Among them, the communication terminal in this application may be a mobile phone, a tablet (Personal Computer), a laptop (Laptop Computer), or a laptop, a personal digital assistant (PDA), a handheld computer, a netbook, Ultra-mobile personal computer (UMPC), mobile internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted equipment (Vehicle User Equipment, VUE), pedestrian terminal (Pedestrian User Equipment) , PUE) and other terminal-side devices, wearable devices include: bracelets, earphones, glasses, etc. It should be noted that the embodiments of this application do not limit the specific type of UE. The base stations (including primary and secondary base stations) in this application can be referred to as Node B, Evolved Node B, Access Point, Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, Wireless Local Area Network (WLAN) Access point, Wireless Fidelity (WiFi) node, Transmitting Receiving Point (TRP), or some other appropriate term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary.

In the following, the MCG suspension method provided by the embodiments of the present application will be described in detail through specific embodiments and application scenarios with reference to the accompanying drawings.

As shown in FIG. 3, FIG. 3 is a flowchart of an MCG suspension method provided by an embodiment of the present application. The method is applied to the wireless communication system shown in FIG. 2, wherein the first UE of the communication terminal is configured with a primary cell The group MCG and the secondary cell group SCG, as shown in FIG. 3, the MCG suspension method includes the following steps S301-S312.

S301: After determining to suspend the MCG connection, the first UE sends an MCG suspension request message to the first network device.

Wherein, the MCG suspension request message includes first information, and the first information is used to instruct the MCG suspension or the first UE to leave the MCG;

It should be noted that the communication terminal in this application is a multi-card terminal. The multi-card terminal may include a first UE corresponding to SIM card 1 and a second UE corresponding to SIM card 2. Of course, it may also include more SIM cards. The corresponding UE is not specifically limited in this embodiment.

In the embodiment of this application, the configured SCG is in the active state. Therefore, when the MCG is suspended, the first UE can communicate with the first network device through the SCG. It should be noted that the first network device in the embodiment of this application It may be a primary base station connected to the communication terminal, or a secondary base station connected to the communication terminal, which is not specifically limited in this embodiment.

Optionally, the determining to suspend the MCG includes: determining to suspend the MCG when the second UE in the communication terminal needs to use UE resources connected to the MCG. Specifically, when the second UE initiates a task and needs to use the UE resources of the MCG connection of the first UE in time sharing, the first UE determines to suspend the MCG connection. It should be noted that the UE resources are terminal resources such as physical layer software and hardware of the communication terminal, and radio frequency channels.

Optionally, the MCG suspension request message includes any of the following:

MRDC uplink information transmission (ULInformationTransferMRDC) message;

MCG failure information (MCGFailureInformation);

UE Assistance Information (UE Assistance Information) message.

Wherein, when the MCG suspension request message includes an MRDC uplink information transmission message, the first information includes at least one of the following: MCG failure information whose failure Type (failureType) is MCG Suspend; MCG leave information ( MCG Leaving or MCG Suspend; or,

When the MCG suspension request message includes MCG failure information, the failure type in the MCG failure information is MCG suspension; or,

In a case where the MCG suspension request message includes the UE assistance information message, the first information includes MCG leave information or MCG suspension information.

Optionally, the MCG suspension request message further includes: second information, where the second information is used to indicate the reason why the first UE leaves the MCG or suspends the MCG. For example, the leaving cause can be, for example, Multi-SIM purpose, UE Suspend, etc.

Specifically, the MCG suspension request message includes any of the following:

(1) MRDC uplink information transmission (ULInformationTransferMRDC) message, the ULInformationTransferMRDC message includes: MCGFailureInformation, the failureType in the MCGFailureInformation cell is set to MCGSuspend; or, the ULInformationTransferMRDC message includes: UE leaving MCG indication information (MCGLeaving, or MCG Suspend). Optionally, it also includes Leaving Cause, such as Multi-SIM purpose, UE Suspend, and so on.

(2) MCG failure information (MCGFailureInformation), where the failureType in the MCGFailureInformation cell is set to MCG Suspend.

(3) UE Assistance Information (UE Assistance Information) message. The UE Assistance Information message includes: indication information (MCG Leaving, or MCG Suspend) for the UE to leave the MCG. Optionally, it also includes Leaving Cause, such as Multi-SIM purpose, UE Suspend, and so on.

In the embodiment of the present application, by carrying the first information indicating that the MCG is suspended or the first UE leaves the MCG in the MCG suspension request message, the network side can be notified to suspend the MCG to realize the MCG suspension. Further, by setting the failure type to MCG Suspend, or setting the leave reason to Multi-SIM purpose or UE Suspend, the network side can be notified of the reason for the MCG suspension.

S302: The first network device receives the MCG suspension request message.

S303. The first network device suspends the MCG connection.

In the embodiment of the present application, after receiving the MCG suspension request message, the first network device suspends the MCG connection. After the first network device suspends the MCG connection, the message sending and data transmission of the MCG connection is suspended, and the network can still transmit messages or data through the SCG connection.

S304. The first network device sends a response message to the first UE, where the response message is a response of the first network device to the MCG suspension request message.

S305. The first UE receives the response message.

S306: The first UE suspends the MCG connection.

Optionally, the MCG connection is suspended after the first UE sends the MCG suspension request message to the first network device; or, the MCG connection is suspended after the MCG suspension request message is successfully sent. Wherein, the successful sending of the MCG suspension request message includes any one of the following: a radio resource control (Radio Resource Control, RRC) layer receives confirmation information from a radio link control (Radio Link Control, RLC) layer, and The confirmation information is a confirmation of sending the MCG suspension request message; the RRC layer receives the response message of the MCG suspension request message. In other words, the above step 305 can be executed after step S301, before step S305, or after step S305.

In the embodiment of the present application, the suspension of the MCG connection includes at least one of the following:

Release the physical layer resources of the MCG connection;

Suspend the Medium Access Control (MAC) entity, Packet Data Convergence Protocol (PDCP) entity and/or RLC entity related to the MCG connection;

The RRC layer retains the MCG configuration.

In the embodiment of the present application, by suspending the MCG, other UEs of the multi-card communication terminal can be supported to use the UE resources connected to the MCG to perform data transmission, reduce the interruption of UE tasks, maximize the use of UE resources, and improve user experience.

Specifically, after the first UE in the multi-card communication terminal suspends the MCG connection, the second UE in the multi-card communication terminal can use the aforementioned UE resources to perform data transmission with the third network device. It should be noted that the UE resource is the physical layer software and hardware of the multi-card communication terminal, radio frequency path and other terminal resources; in addition, the third network device can be the same as the first network device or the second network device in this application, or it can be The difference is not specifically limited in this embodiment.

As shown in FIG. 4, the MCG suspension method in the embodiment of the present application further includes:

S307: The first UE uses the SCG connection to perform information transmission.

In addition, after the second UE ends the data transmission, how to quickly restore the MCG connection is also a technical problem that needs to be further solved. Optionally, in order to solve the technical problem of quickly restoring the MCG connection, the embodiment of the present application further includes:

S308. The second UE releases UE resources.

Specifically, the second UE will release the UE resources related to the above MCG connection after finishing the information transmission. The first UE may trigger the MCG link fast recovery (Fast MCG link Recovery) process when the second UE releases the UE resources. The MCG link quick recovery process includes steps S309-S314.

S309. The first UE sends an MCG connection recovery request message to the first network device; wherein the MCG connection recovery request message includes third information for indicating MCG recovery.

Optionally, the third information includes at least one of the following:

The failure type (failureType) is set to MCG recovery (MCG Recovery) MCG failure information;

MCG restore information.

Optionally, the sending an MCG connection recovery request message to the first network device includes:

Send an MCG connection recovery request message to the first network device through the SCG leg of the separated signaling radio bearer (Signaling Radio Bearer, SRB) 1; or

Send an MCG connection recovery request message to the first network device through SRB3.

Optionally, in the case that the MCG connection recovery request message is sent to the first network device through the SRB3, the MCG connection recovery request message includes an MRDC uplink information transmission message.

Optionally, the MCG connection recovery request message further includes:

Fourth information, the fourth information is used to indicate the reason why the first UE leaves the MCG or suspends the MCG. For example, the leaving cause can be, for example, Multi-SIM purpose, UE Suspend, etc.

Specifically, if the UE SRB1 is configured as a split SRB, the UE sends MCG connection recovery request information to the network, including at least one of the following:

(1) MCGFailureInformation message. The failureType in this cell is set to MCG Recovery, or the reason for the wireless link failure is randomAccessProblem, rlc-MaxNumRetx, etc.

(2) The indication message (MCG Recovery, or MCG Resume) of the UE to recover the MCG. Optionally, it includes Leaving Cause, such as Multi-SIM purpose, UE Suspend, and so on.

It should be noted that the split SRB refers to an SRB carried by the RLC between the MeNB and the UE, and the MCG and SCG in the dual connectivity. The split SCG leg of SRB1 (SCG leg) refers to the branch where the RLC in split SRB1 is located in the SCG.

If the UE is configured with SRB3, the UE sends an MRDC uplink information transmission message (ULInformationTransferMRDC) to the network, including at least one of the following:

(1) MCGFailureInformation information. The failureType in this cell is set to any one of the following: MCG Recovery information; or the reason for the wireless link failure such as randomAccessProblem, rlc-MaxNumRetx, etc.

(2) UE resumes MCG (MCG Recovery, or MCG Resume). Optionally, it includes Leaving Cause, such as Multi-SIM purpose, UE Suspend, and so on.

It should be noted that SRB3 is a direct SRB between the SeNB and the UE.

S310. The first network device receives the MCG connection recovery request message.

S311: The first network device restores the configuration before the MCG suspension.

S312. The first network device sends an RRC reconfiguration (RRCReconfiguration) message to the first UE.

Specifically, after the first network device receives the MCG connection recovery request message sent by the UE, when processing the MCG connection recovery request message sent by the UE, the network determines if the reason in the MCG connection recovery request message includes any of the following: failureType is MCG Recovery; UE resumes MCG; Leaving Causes such as Multi-SIM purpose, UE Suspend, etc. Correspondingly, the first network device can optionally recover when constructing RRCReconfiguration Configuration before MCG suspension. In addition, the first network device may send the RRC reconfiguration message to the first UE through the SCG leg of the split SRB1, and may also send the reconfiguration message to the first UE through the SRB3, which is not specifically limited in this embodiment.

S313. The first UE receives the RRC reconfiguration message.

S314: Restore the MCG connection according to the RRC reconfiguration message.

Specifically, the UE receives the RRCReconfiguration message and executes the RRC reconfiguration process. After the UE successfully performs the RRC reconfiguration process, it resumes the message sending and data transmission of the MCG connection.

In this embodiment of the application, the first UE in the dual connection of the multi-card communication terminal realizes the suspension of the MCG by sending to the first network device an MCG suspension request message carrying an instruction to suspend the MCG or the first UE to leave the MCG. As a result, it is possible to support other UEs of a multi-card communication terminal to use the UE resources of the MCG connection for data transmission, reduce the interruption of UE tasks, maximize the use of UE resources, and improve user experience. In addition, through the MCG link fast recovery process in the embodiment of the present application, the suspended MCG connection can be quickly recovered, so as to realize the recovery of data transmission by the first UE through the MCG as soon as possible, and maximize the use of MCG resources.

As shown in FIG. 5, FIG. 5 is a flowchart of an MCG suspension method provided by an embodiment of the present application. The method is applied to the wireless communication system shown in FIG. 2, wherein the first UE of the communication terminal is configured with a primary cell Group MCG and secondary cell group SCG, the MCG suspension method includes the following steps S401-S409.

S401: After the first UE determines to suspend the MCG connection, it locally suspends the MCG connection.

The difference from the embodiment shown in FIG. 3 is that in this embodiment, after the first UE determines to suspend the MCG connection, the MCG connection is suspended locally.

Optionally, locally suspending MCG connection includes at least one of the following:

Release the physical layer resources of the MCG connection;

Suspend the MAC entity, PDCP entity and/or RLC entity related to the MCG connection;

The RRC layer retains the MCG configuration.

Specifically, after the first UE locally suspends the MCG connection, it stops the MCG bottom layer process. Optionally, retain the MCG configuration of the RRC layer.

Optionally, the SCG configured by the first UE is in an active state, and after the first UE locally suspends the MCG connection, the first network device and the first UE may transmit messages or data through the SCG.

Optionally, the determining to suspend the MCG includes: determining to suspend the MCG when the second UE in the communication terminal needs to use UE resources connected to the MCG.

S402: The first UE uses the SCG connection to perform information transmission.

Specifically, after the first UE in the multi-card communication terminal suspends the MCG connection, the second UE in the multi-card communication terminal may use UE resources related to the MCG connection for data transmission. It should be noted that the UE resources are terminal resources such as physical layer software and hardware and radio frequency channels of a multi-card communication terminal.

In addition, after the second UE ends the data transmission, how to quickly restore the MCG connection is also a technical problem that needs to be further solved.

Optionally, in order to solve the technical problem of quickly restoring the MCG connection, the embodiment of the present application further includes:

S403. The second UE releases UE resources.

Specifically, the second UE will release the UE resources related to the above MCG connection after finishing the data transmission. The first UE may trigger the MCG link fast recovery (Fast MCG link Recovery) process when the second UE releases the UE resources. The MCG link quick recovery process includes steps S404-S409.

S404: The first UE sends an MCG connection recovery request message to the first network device; where the MCG connection recovery request message includes third information for indicating MCG recovery.

Optionally, the third information includes at least one of the following:

MCG restore information.

Send the MCG connection recovery request message to the first network device through the SCG leg that carries the SRB1 radio through the separation signaling; or

Optionally, the MCG connection recovery request message further includes:

S405: The first network device receives the MCG connection recovery request message.

S406: The first network device restores the configuration before the MCG suspension.

S407: The first network device sends an RRC reconfiguration (RRC Reconfiguration) message to the first UE.

S408: The first UE receives the RRC reconfiguration message.

S409: Restore the MCG connection according to the RRC reconfiguration message.

For the specific implementation of each step in this embodiment, please refer to the embodiment corresponding to FIG. 3 or FIG. 4, and to avoid repetition, details are not described again.

In this embodiment of the application, the first UE in the dual connection of the multi-card communication terminal realizes the suspension of the MCG by locally suspending the MCG, so that other UEs of the multi-card communication terminal can use the UE resources of the MCG connection to perform Data transmission reduces the interruption of UE tasks, maximizes the use of UE resources, and improves user experience. Through the MCG link fast recovery process in the embodiment of the present application, the suspended MCG connection can be quickly recovered, so as to realize the recovery of data transmission by the first UE through the MCG as soon as possible, and maximize the use of MCG resources.

As shown in FIG. 6, FIG. 6 is a flowchart of an MCG link fast recovery method provided by an embodiment of the present application. The MCG link fast recovery method is applied to the wireless communication system shown in FIG. A UE is configured with a primary cell group MCG and a secondary cell group SCG, and the MCG link fast recovery method includes step S501.

S501: After the first UE suspends the MCG connection, trigger the MCG link recovery process;

In this embodiment, the MCG connection can be suspended by the MCG suspension method corresponding to the embodiment in FIG. 3 or FIG. 4, or the MCG connection can be suspended by the MCG suspension method corresponding to the embodiment in FIG. The method is not limited in this embodiment.

Optionally, the triggering of the MCG link rapid recovery process includes: triggering the MCG link rapid recovery process when the second UE releases the UE resources. Specifically, after the first UE in the multi-card communication terminal suspends the MCG connection, the second UE in the multi-card communication terminal can use the UE resources of the MCG connection for data transmission. It should be noted that the UE resources are multi-card communication terminals. The physical layer software and hardware of the card communication terminal, radio frequency channel and other terminal resources, after the second UE finishes data transmission, the second UE will release the UE resources, for example, release the UE resources related to the MCG connection of the first UE. The first UE may trigger the MCG link fast recovery process when the second UE releases the UE resources.

In this embodiment, the MCG link fast recovery process includes steps S502-S507.

S502. The first UE sends an MCG connection recovery request message to the first network device; where the MCG connection recovery request message includes third information for indicating MCG recovery.

Optionally, the third information includes at least one of the following:

MCG restore information.

Optionally, the MCG connection recovery request message further includes:

S503: The first network device receives the MCG connection recovery request message.

S504: The first network device restores the configuration before the MCG suspension.

S505: The first network device sends an RRC reconfiguration (RRC Reconfiguration) message to the first UE.

S506: The first UE receives the RRC reconfiguration message.

S507: Restore the MCG connection according to the RRC reconfiguration message.

Through the MCG link fast recovery process in the embodiment of the present application, the suspended MCG connection can be quickly recovered, so as to realize the recovery of data transmission by the first UE through the MCG as soon as possible, and maximize the use of MCG resources.

As shown in FIG. 7, an embodiment of the present application provides an MCG suspension device 600. The MCG suspension device 600 can be applied to a first UE of a communication terminal. The first UE is configured with a primary cell group MCG and a secondary cell group. SCG, the MCG suspension device 600 may include a determining module 601 for determining to suspend the MCG connection; a first sending module 602 for sending an MCG suspension request message to the first network device; wherein the MCG suspension request The message includes first information, and the first information is used to indicate that the MCG is suspended or the first UE leaves the MCG.

Optionally, the MCG suspension request message includes any of the following:

MRDC uplink information transmission message;

MCG failure information;

UE assistance information message.

Optionally, when the MCG suspension request message includes an MRDC uplink information transmission message, the first information includes at least one of the following: MCG failure information whose failure type is MCG suspension; MCG leave information or MCG suspension information; or,

Optionally, the MCG suspension request message further includes: second information, and the second information is used to indicate the reason why the first UE leaves the MCG or suspends the MCG.

Optionally, the MCG suspension device 600 further includes a receiving module configured to receive a response message, where the response message is a response of the first network device to the MCG suspension request message.

Optionally, the MCG suspending device 600 further includes: a second suspending module for suspending the MCG connection after sending the MCG suspending request message to the first network device, or, after successfully sending the MCG suspending request The MCG connection is suspended after the message.

Optionally, the MCG suspension device 600 further includes: a triggering module for triggering the MCG link rapid recovery process; a second sending module for sending an MCG connection recovery request message to the first network device, where all The MCG connection recovery request message includes third information for indicating MCG recovery.

Optionally, the third information includes at least one of the following:

The failure type is set to the MCG failure information of MCG recovery;

MCG restore information.

Optionally, the MCG connection recovery request message further includes: fourth information, where the fourth information is used to indicate the reason why the first UE leaves the MCG or suspends the MCG.

Optionally, the reason why the first UE leaves the MCG or suspends the MCG includes: multi-card reason or UE suspension.

Optionally, the receiving module is further configured to receive an RRC reconfiguration message;

Optionally, the MCG suspension device 600 further includes a connection recovery module, configured to recover the MCG connection according to the RRC reconfiguration message.

Optionally, the suspension of the MCG connection includes at least one of the following:

Release the physical layer resources of the MCG connection;

The RRC layer retains the MCG configuration.

Optionally, the determining module is specifically configured to determine to suspend the MCG when the second UE in the communication terminal needs to use UE resources connected to the MCG.

Optionally, the triggering module is specifically configured to trigger the MCG link rapid recovery process when the second UE releases the UE resources.

In this embodiment of the application, the first UE in the dual connection of the multi-card communication terminal realizes the suspension of the MCG by sending to the first network device an MCG suspension request message that indicates MCG suspension or the first UE leaves the MCG. As a result, it is possible to support other UEs of a multi-card communication terminal to use the UE resources of the MCG connection for data transmission, reduce the interruption of UE tasks, maximize the use of UE resources, and improve user experience. In addition, through the MCG link fast recovery process in the embodiment of the present application, the suspended MCG connection can be quickly recovered, so as to realize the recovery of data transmission by the first UE through the MCG as soon as possible, and maximize the use of MCG resources.

As shown in FIG. 8, an embodiment of the present application provides an MCG suspension device 700. The MCG suspension device 700 can be applied to a first UE of a communication terminal. The first UE is configured with a primary cell group MCG and a secondary cell group. SCG, the MCG suspension device 700 may include a first suspension module 701, configured to locally suspend the MCG connection after determining that the MCG connection is suspended.

Optionally, the MCG suspension device 700 further includes: a triggering module for triggering the MCG link rapid recovery process; a second sending module for sending an MCG connection recovery request message to the first network device, where all The MCG connection recovery request message includes third information for indicating MCG recovery.

Optionally, the third information includes at least one of the following:

The failure type is set to the MCG failure information of MCG recovery;

MCG restore information.

Optionally, the MCG suspension device 700 further includes a receiving module, configured to receive an RRC reconfiguration message;

Optionally, the MCG suspension device 700 further includes a connection recovery module, configured to recover the MCG connection according to the RRC reconfiguration message.

Release the physical layer resources of the MCG connection;

The RRC layer retains the MCG configuration.

In this embodiment of the application, the first UE in the dual connection of the multi-card communication terminal realizes the suspension of the MCG by locally suspending the MCG, so that other UEs of the multi-card communication terminal can use the UE resources of the MCG connection to perform Data transmission reduces the interruption of UE tasks, maximizes the use of UE resources, and improves user experience. In addition, through the MCG link fast recovery process in the embodiment of the present application, the suspended MCG connection can be quickly recovered, so as to realize the recovery of data transmission by the first UE through the MCG as soon as possible, and maximize the use of MCG resources.

As shown in FIG. 9, the embodiment of this application provides an MCG link fast recovery device 800. The MCG link fast recovery device 800 can be applied to a first UE of a communication terminal. The first UE is configured with a primary cell group MCG and a secondary cell. Group SCG, the MCG suspension device 800 may include a trigger module 801 for triggering the MCG link recovery process after the MCG connection is suspended; the sending module 802 for sending an MCG connection recovery request message to the first network device , Wherein the MCG connection recovery request message includes third information for indicating MCG recovery.

Optionally, the third information includes at least one of the following:

The failure type is set to the MCG failure information of MCG recovery;

MCG restore information.

Optionally, the MCG link rapid recovery device 800 further includes a receiving module, configured to receive an RRC reconfiguration message;

Optionally, the MCG suspension device 800 further includes a connection recovery module, configured to recover the MCG connection according to the RRC reconfiguration message.

Release the physical layer resources of the MCG connection;

The RRC layer retains the MCG configuration.

Optionally, the determining module is specifically configured to determine to suspend the MCG when the second UE in the communication terminal needs to use the UE resources of the MCG connection.

As shown in FIG. 10, an embodiment of the present invention also provides an MCG suspension device 900, which is applied to a first network device. The MCG suspension device 900 includes a first receiving module 901 for receiving an MCG suspension request message, where , The MCG suspension request message includes first information for instructing the MCG suspension or the first UE to leave the MCG;

Optionally, the MCG suspension request message includes any of the following:

MRDC uplink information transmission message;

MCG failure information;

UE assistance information message.

Optionally, the MCG suspension device 900 further includes: a sending module, configured to send a response message to the communication terminal, where the response message is a response of the first network device to the MCG suspension request message.

Optionally, the MCG suspension device 900 further includes at least one of the following:

The suspend module is used to suspend the MCG connection after receiving the MCG suspend request message;

The third receiving module is configured to receive the MCG connection recovery request message after receiving the MCG suspension request message.

Optionally, the MCG connection recovery request message includes third information for indicating MCG recovery.

Optionally, the receiving the MCG connection recovery request message includes: receiving the MCG connection recovery request message through the SCG leg of the separation signaling radio bearer SRB1; or

Receive MCG connection recovery request message through SRB3.

Optionally, the MCG connection recovery request message further includes: fourth information, where the fourth information is used to indicate the reason why the first UE leaves the MCG or suspends the MCG. The reason why the first UE leaves the MCG or suspends the MCG includes: multi-card reason or UE suspension.

Optionally, the sending module is further configured to send an RRC reconfiguration message to the communication terminal, where the RRC reconfiguration message is used for the first UE to restore the MCG connection.

Release the physical layer resources of the MCG connection;

The RRC layer retains the MCG configuration.

The MCG suspension device in the embodiment of the present application may be a device with an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.

The MCG suspension device provided in the embodiment of the present application can implement each process implemented by the first network device in the foregoing method embodiment, and achieve the same technical effect. In order to avoid repetition, details are not repeated here.

As shown in FIG. 11, an embodiment of the present invention also provides an MCG suspension device 1000, which is applied to a first network device. The MCG suspension device 1000 includes a second receiving module 1001 for receiving an MCG connection restoration request message.

Receive MCG connection recovery request message through SRB3.

Optionally, the MCG suspension device 1000 further includes a sending module, configured to send an RRC reconfiguration message to the communication terminal, where the RRC reconfiguration message is used for the first UE to restore the MCG connection.

Release the physical layer resources of the MCG connection;

The RRC layer retains the MCG configuration.

Optionally, as shown in FIG. 12, an embodiment of the present application further provides a communication device 1100, including a processor 1101, a memory 1102, and a program or instruction that is stored on the memory 1102 and can run on the processor 1101, for example, When the communication device 1100 is a communication terminal, when the program or instruction is executed by the processor 1101, each process implemented by the first UE in the above MCG suspension method or MCG link quick recovery method embodiment is realized, and the same technical effect can be achieved . When the communication device is the first network device, when the program or instruction is executed by the processor 1101, the various processes implemented by the first network device in the above MCG suspension method embodiment are realized, and the same technical effect can be achieved. In order to avoid repetition, I won't repeat it here.

FIG. 13 is a schematic diagram of the hardware structure of a communication terminal that implements an embodiment of the present application.

The communication terminal 100 includes but is not limited to: a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, etc. part.

Those skilled in the art can understand that the UE 100 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 110 through a power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions. The UE structure shown in FIG. 1 does not constitute a limitation on the UE. The UE may include more or less components than shown in the figure, or combine some components, or arrange different components, which will not be repeated here.

It should be understood that, in this embodiment of the present application, the input unit 104 may include a graphics processing unit (GPU) 1041 and a microphone 1042. The graphics processor 1041 is paired by the image capture device ( For example, the image data of the still picture or video obtained by the camera) is processed. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 107 includes a touch panel 1071 and other input devices 1072. The touch panel 1071 is also called a touch screen. The touch panel 1071 may include two parts: a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.

In the embodiment of the present application, the radio frequency unit 101 receives the downlink data from the network side device and sends it to the processor 110 for processing; in addition, it sends the uplink data to the access network device. Generally, the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 109 can be used to store software programs or instructions and various data. The memory 109 may mainly include a storage program or instruction area and a data storage area, where the storage program or instruction area may store an operating system, an application program or instructions required by at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 109 may include a high-speed random access memory, and may also include a non-volatile memory, where the non-volatile memory may be a read-only memory (Read-Only Memory, ROM) or a programmable read-only memory (Programmable ROM). , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. For example, at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

The processor 110 may include one or more processing units; optionally, the processor 110 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, and application programs or instructions, etc. The modem processor mainly deals with wireless communication, such as a baseband processor. It can be understood that the foregoing modem processor may not be integrated into the processor 110.

Wherein, the radio frequency unit 101 is configured to, after determining that the MCG connection is suspended, send a suspend request message to the first network device MCG, wherein the MCG suspend request message includes first information, and the first information is used to indicate the MCG Suspend or the first UE leaves the MCG; or, the processor 110 is configured to locally suspend the MCG connection after determining that the MCG connection is suspended.

Optionally, the MCG suspension request message includes any one of the following: MRDC uplink information transmission message; MCG failure information; UE auxiliary information message.

Optionally, when the MCG suspension request message includes an MRDC uplink information transmission message, the first information includes at least one of the following: MCG failure information whose failure type is MCG suspension; MCG leave information or MCG suspension information; Or, when the MCG suspension request message includes MCG failure information, the failure type in the MCG failure information is MCG suspension; or, when the MCG suspension request message includes a UE auxiliary information message, the first information Including MCG leaving information or MCG suspension information.

The radio frequency unit 101 is further configured to receive a response message, where the response message is a response of the first network device to the MCG suspension request message.

Optionally, in the case of sending the MCG suspension request message to the first network device, the processor 110 is further configured to suspend the MCG connection after sending the MCG suspension request message to the first network device; or After successfully sending the MCG suspension request message, the MCG connection is suspended.

Optionally, the successful sending of the MCG suspension request message includes any one of the following: the RRC layer receives confirmation information from the RLC layer, and the confirmation information is a confirmation of sending the MCG suspension request message; the RRC layer receives MCG suspends the response message of the request message.

Optionally, the processor 110 is further configured to trigger an MCG link fast recovery process, where the MCG link fast recovery process includes: sending an MCG connection recovery request message to the first network device, where the MCG connection recovery request The message includes third information for indicating MCG recovery.

Optionally, the third information includes at least one of the following: MCG failure information whose failure type is set to MCG recovery; MCG recovery information.

Optionally, the radio frequency unit 101 is further configured to receive an RRC reconfiguration message; the processor 110 is further configured to restore the MCG connection according to the RRC reconfiguration message.

Optionally, the suspending the MCG connection includes at least one of the following: releasing physical layer resources of the MCG connection; suspending the MAC entity, PDCP entity, and/or RLC entity related to the MCG connection; and the RRC layer retains the MCG configuration.

Optionally, the triggering of the MCG link rapid recovery process includes: triggering the MCG link rapid recovery process when the second UE releases the UE resources.

An embodiment of the present application provides a communication terminal, which sends an MCG suspension request message carrying instructions to suspend MCG or the first UE to leave the MCG to the first network device through a first UE in dual connectivity in the communication terminal, or locally suspend the MCG The connection realizes the suspension of the MCG, which can support other UEs of the multi-card communication terminal to use the UE resources of the MCG connection for data transmission, reduce the interruption of UE tasks, maximize the use of UE resources, and improve user experience.

The embodiment of the present application also provides a readable storage medium on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above MCG suspension method or MCG link quick recovery embodiment is realized. , And can achieve the same technical effect, in order to avoid repetition, I will not repeat it here.

Wherein, the processor is the processor in the terminal in the foregoing embodiment. Readable storage media include computer-readable storage media, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disks, or optical disks.

The embodiment of the present application further provides a chip. The chip includes a processor and a communication interface. The communication interface and the processor are coupled. The processor is used to run a network-side device program or instruction to implement the above MCG suspension method or MCG link rapid recovery method. The various processes of the embodiments can achieve the same technical effect, and in order to avoid repetition, the details are not repeated here.

It should be understood that the chip mentioned in the embodiment of the present application may also be called a system-level chip, a system-on-chip, a system-on-chip, or a system-on-chip, etc.

It should be noted that in this article, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, It also includes other elements that are not explicitly listed, or elements inherent to the process, method, article, or device. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article, or device that includes the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. The functions are performed, for example, the described method may be performed in an order different from the described order, and various steps may also be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the description of the above implementation manners, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better.的实施方式。 Based on this understanding, the technical solution of this application essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to make a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a first network device, etc.) execute the methods of the various embodiments of the present application.

The embodiments of the present application are described above with reference to the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art are Under the enlightenment of this application, many forms can be made without departing from the purpose of this application and the scope of protection of the claims, all of which fall within the protection of this application.

Claims

A method for suspending a primary cell group MCG is applied to a first user equipment UE of a communication terminal. The first UE is configured with a primary cell group MCG and a secondary cell group SCG. The method includes:

After determining to suspend the MCG connection, send an MCG suspend request message to the first network device, where the MCG suspend request message includes first information, and the first information is used to indicate the MCG suspension or the first UE leaves MCG;

or,

After confirming that the MCG connection is suspended, the MCG connection is suspended locally.
The method according to claim 1, wherein the MCG suspension request message includes any one of the following:

Multi-wireless dual-connection MRDC uplink information transmission message;

MCG failure information;

UE assistance information message.
The method of claim 2, wherein:

When the MCG suspension request message includes an MRDC uplink information transmission message, the first information includes at least one of the following: MCG failure information whose failure type is MCG suspension; MCG leave information or MCG suspension information; or,

When the MCG suspension request message includes MCG failure information, the failure type in the MCG failure information is MCG suspension; or,

In a case where the MCG suspension request message includes the UE assistance information message, the first information includes MCG leave information or MCG suspension information.
The method according to claim 1, wherein the MCG suspension request message further includes:

The second information, the second information is used to indicate the reason why the first UE leaves the MCG or suspends the MCG.
The method of claim 1, wherein:

A response message is received, where the response message is a response of the first network device to the MCG suspension request message.
The method according to claim 1, wherein in the case of sending an MCG suspension request message to the first network device, the method further comprises:

Suspend the MCG connection after sending the MCG suspension request message to the first network device; or,

The MCG connection is suspended after the MCG suspension request message is successfully sent.
The method according to claim 6, wherein the successful sending of the MCG suspension request message comprises any one of the following:

The radio resource control RRC layer receives the confirmation information of the radio link control RLC layer, where the confirmation information is a sending confirmation of the MCG suspension request message;

The RRC layer receives the response message of the MCG suspension request message.
The method according to claim 1, further comprising:

Triggering the MCG link fast recovery process, the MCG link fast recovery process includes: sending an MCG connection recovery request message to the first network device, where the MCG connection recovery request message includes a first message for instructing MCG recovery Three information.
The method according to claim 8, wherein the third information includes at least one of the following:

The failure type is set to the MCG failure information of MCG recovery;

MCG restore information.
The method according to claim 8, wherein the sending an MCG connection recovery request message to the first network device comprises:

Send the MCG connection recovery request message to the first network device through the SCG leg that carries the SRB1 radio through the separation signaling; or

Send an MCG connection recovery request message to the first network device through SRB3.
The method according to claim 10, wherein, in the case that the MCG connection recovery request message is sent to the first network device through the SRB3, the MCG connection recovery request message includes an MRDC uplink information transmission message.
The method according to claim 8, wherein the MCG connection recovery request message further includes:

Fourth information, the fourth information is used to indicate the reason why the first UE leaves the MCG or suspends the MCG.
The method according to claim 4 or 12, wherein the reason why the first UE leaves the MCG or suspends the MCG includes: multi-card reason or UE suspension.
The method according to claim 8, further comprising:

Receive RRC reconfiguration message;

According to the RRC reconfiguration message, the MCG connection is restored.
The method according to claim 1 or 6, wherein the suspending the MCG connection includes at least one of the following:

Release the physical layer resources of the MCG connection;

Suspend the media access control MAC entity, packet data convergence protocol PDCP entity and/or RLC entity related to the MCG connection;

The RRC layer retains the MCG configuration.
The method according to claim 1, wherein the determining to suspend the MCG comprises:

In the case that the second UE in the communication terminal needs to use the UE resources connected to the MCG, it is determined to suspend the MCG.
The method according to claim 8, wherein the triggering of the MCG link fast recovery process comprises:

When the second UE in the communication terminal releases the UE resources, the MCG link quick recovery process is triggered.
An MCG suspension method, applied to a first network device, includes:

Receive an MCG suspension request message sent by the first UE, where the MCG suspension request message includes first information for indicating that the MCG is suspended or the first UE leaves the MCG; or,

Receive MCG connection recovery request message.
The method according to claim 18, wherein after receiving the MCG suspension request message, at least one of the following is performed:

Suspend MCG connection;

Receive MCG connection recovery request message.
The method according to claim 18 or 19, wherein:

If the MCG connection recovery request message includes the fourth information or the third information, perform the first operation; wherein,

The fourth information is used to indicate the reason why the first UE leaves the MCG or suspends the MCG;

The third information is used to indicate MCG recovery;

The first operation includes at least one of the following:

Restore the configuration before MCG suspension;

Sending an RRC reconfiguration message to the communication terminal, where the RRC reconfiguration message is used for the first UE to restore the MCG connection.
An MCG suspension device is applied to a first user equipment UE of a communication terminal. The first UE is configured with a primary cell group MCG and a secondary cell group SCG, and the device includes:

Confirm module, used to confirm the suspension of MCG connection;

The first sending module is configured to send an MCG suspension request message to the first network device; wherein the MCG suspension request message includes first information, and the first information is used to indicate MCG suspension or the first UE leaves MCG; or,

The first suspension module is used to locally suspend the MCG connection after determining that the MCG connection is suspended.
The device according to claim 21, wherein, in the case that the device includes the first sending module, the device further includes:

The second suspension module is configured to suspend the MCG connection after sending the MCG suspension request message to the first network device, or suspend the MCG connection after successfully sending the MCG suspension request message.
The device according to claim 21, further comprising:

Trigger module, used to trigger the MCG link rapid recovery process;

The second sending module is configured to send an MCG connection recovery request message to the first network device, where the MCG connection recovery request message includes third information for indicating MCG recovery.
An MCG suspension device, applied to a first network device, the device includes: a first receiving module for receiving an MCG suspension request message, wherein the MCG suspension request message includes instructions for indicating MCG suspension Or the first information that the first user equipment UE leaves the MCG; or,

The second receiving module is used to receive the MCG connection recovery request message.
The device according to claim 24, further comprising at least one of the following:

The suspend module is used to suspend the MCG connection after receiving the MCG suspend request message;

The third receiving module is configured to receive the MCG connection recovery request message after receiving the MCG suspension request message.
A user equipment UE, including a processor, a memory, and a program or instruction stored on the memory and capable of running on the processor, and the program or instruction is executed by the processor to implement claims 1 to Steps of the MCG suspension method described in any one of 17.
A network device, comprising a processor, a memory, and a program or instruction stored on the memory and capable of running on the processor. The program or instruction is executed by the processor as claimed in claims 18 to 20 Any of the steps of the MCG suspension method.
A readable storage medium storing a program or instruction on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to any one of claims 1 to 20 are realized.
A chip comprising a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used to run a program or an instruction to implement the method according to any one of claims 1 to 20.
A computer software product, the computer software product is stored in a non-volatile storage medium, and the software product is configured to be executed by at least one processor to implement any one of claims 1 to 20 Method steps.
A UE configured to execute the MCG suspension method according to any one of claims 1 to 17.
A network device configured to execute the MCG suspension method according to any one of claims 18 to 20.