WO2023198100A1

WO2023198100A1 - Dual connectivity function control method, apparatus, terminal and network side device

Info

Publication number: WO2023198100A1
Application number: PCT/CN2023/087796
Authority: WO
Inventors: 蒲文娟
Original assignee: 维沃移动通信有限公司
Priority date: 2022-04-12
Filing date: 2023-04-12
Publication date: 2023-10-19
Also published as: CN116939886A

Abstract

Disclosed in the present application are a dual connectivity function control method, an apparatus, a terminal and a network side device, belonging to the field of communications. The dual connectivity function control method in the embodiments of the present application comprises: a terminal executing a first behavior, the first behavior comprising at least one of the following: sending a first message to a network side device, the first message comprising first instruction information, the first instruction information being used for instructing the terminal to perform at least one of requesting not to configure a secondary cell group (SCG) and requesting not to recover saved SCG configuration, and the first message comprising a radio resource control (RRC) connection recovery request message or an RRC connection establishment request message; and when first configuration information is received, executing a target operation, the first configuration information being used for controlling the SCG, and the target operation being used for limiting the terminal to perform dual connectivity (DC).

Description

Dual connection function control method, device, terminal and network side equipment

Cross-references to related applications

This application claims priority from Chinese Patent Application No. 202210383968.1 filed in China on April 12, 2022, 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 a dual connection function control method, device, terminal and network side equipment.

Background technique

Dual-SIM terminals or multi-SIM terminals are currently widely available in the market. Taking dual-card terminals as an example, dual-card terminals can be divided into single-sending and single-receiving, depending on whether the terminal supports simultaneous transmission or reception on the network of two cards (such as Universal Subscriber Identity Module, USIM) card. Single transmitter and dual receiver and dual transmitter and dual receiver terminals. For dual-transmit and dual-receive terminals, in order to support parallel transmission of dual cards, while improving resource utilization and reducing terminal costs, terminal manufacturers in the future will be more inclined to allow multiple cards to reuse part of the hardware/RF capabilities, that is, part of the terminal’s hardware/RF capabilities. Ability can be dynamically switched between multiple cards according to actual needs.

With the gradual deployment of dual connectivity technology, dual-card terminals can support dual connectivity (Dual connectivity, DC) on one card or both cards. When a card is in the Radio Resource Control (RRC) idle state or RRC inactive (INACTIVE) state, the other card can work in DC mode and communicate with the master node when it is in the RRC connected state. , MN) and the secondary node (Secondary node, SN) perform parallel transmission. However, when both cards are in the connected state, to support parallel transmission of dual cards, each card cannot perform parallel transmission in DC mode, because DC mode requires that the terminal can communicate with the master node (MN) and the secondary node. (Secondary node, SN) for parallel transmission.

Currently, when a certain card (card A) is in the connected state and card B initiates the RRC connection recovery process in the RRC INACTIVE state, the network side device may configure SCG for card B or instruct the terminal to restore storage in the RRC connection recovery message. SCG configuration. In this case, card B is configured with SCG, which will cause either card B's SCG to fail to work properly, or card A to be disconnected, affecting terminal performance and wasting network resources. Therefore, there is a problem in the related art that communication reliability is low when a certain card in a dual-card or multi-card terminal restores the RRC connection.

Contents of the invention

Embodiments of the present application provide a dual connection function control method, device, terminal and network side equipment, which can improve the reliability of communication when a card in a dual-card or multi-card terminal restores the RRC connection.

In the first aspect, a dual connection function control method is provided, including:

The terminal executes the first behavior;

Wherein, the first act includes at least one of the following:

Send a first message to the network side device, where the first message includes first indication information, where the first indication information is used to instruct the terminal to request not to configure the secondary cell group SCG and to request not to restore at least one of the saved SCG configurations. One item, the first message includes a radio resource control RRC connection recovery request message or an RRC connection establishment request message;

In the case where the first configuration information is received, a target operation is performed, the first configuration information is used to control the SCG, and the target operation is used to restrict the terminal from performing dual connection DC.

In the second aspect, a dual connection function control method is provided, including:

The network side device performs the fourth behavior;

Wherein, the fourth behavior includes at least one of the following:

Receive a first message from the terminal, the first message includes first indication information, the first indication information is used to instruct the terminal to request at least one of not configuring the secondary cell group SCG and requesting not to restore the saved SCG configuration. , the first message includes a radio resource control RRC connection recovery request message or an RRC connection establishment request message;

Send first configuration information to the terminal, the first configuration information is used for the terminal to perform a target operation, and the target operation restricts the terminal from performing dual connection DC;

During the RRC connection recovery process of the terminal, context information of the terminal is obtained, and the context information includes at least one of the following: SCG capability information, DC capability information and multi-card auxiliary information.

In the third aspect, a dual connection function control device is provided, including:

The first execution module is used to execute the first behavior;

Wherein, the first act includes at least one of the following:

Send a first message to the network side device, the first message including first indication information, the first indication information being used to instruct the terminal to request at least one of not configuring the secondary cell group SCG and requesting not to restore the saved SCG configuration. , the first message includes a radio resource control RRC connection recovery request message or an RRC connection establishment request message;

In the fourth aspect, a dual connection function control device is provided, including:

The second execution module is used to execute the fourth behavior;

Wherein, the fourth behavior includes at least one of the following:

In a fifth aspect, a terminal is provided. The terminal includes a processor and a memory, and the memory stores information that can be stored in the A program or instructions running on a processor, which when executed by the processor implement the steps of the method described in the first aspect.

In a sixth aspect, a terminal is provided, including a processor and a communication interface, wherein the processor is used to perform the first behavior;

Wherein, the first act includes at least one of the following:

In a seventh aspect, a network side device is provided. The network side device includes a processor and a memory. The memory stores programs or instructions that can be run on the processor. The program or instructions are executed by the processor. When implementing the steps of the method described in the second aspect.

In an eighth aspect, a network side device is provided, including a processor and a communication interface, wherein the communication interface is used to perform the fourth behavior;

Wherein, the fourth behavior includes at least one of the following:

A ninth aspect provides a communication system, including: a terminal and a network side device. The terminal can be used to perform the steps of the dual connection function control method as described in the first aspect. The network side device can be used to perform the steps of the dual connection function control method as described in the first aspect. The steps of the dual connection function control method described in the second aspect.

In a tenth aspect, a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method are implemented as described in the first aspect. The steps of the method described in the second aspect.

In an eleventh aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the method described in the first aspect. The steps of a method, or steps of implementing a method as described in the second aspect.

In a twelfth aspect, a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement as described in the first aspect The steps of the method, or the steps of implementing the method as described in the second aspect.

In this embodiment of the present application, the first behavior is performed by the terminal; wherein the first behavior includes at least one of the following: sending a first message to the network side device, where the first message includes first indication information, and the first The indication information is used to instruct the terminal to request at least one of a request not to configure the secondary cell group SCG and a request not to restore the saved SCG configuration, and the first message includes a radio resource control RRC connection recovery request message or an RRC connection establishment request message; In the case where the first configuration information is received, a target operation is performed, the first configuration information is used to control the SCG, and the target operation is used to restrict the terminal from performing dual connection DC. In this way, one user identification card of the terminal can limit the DC function after entering the connected state, thereby avoiding the impact on the current business of the other user identification card and improving the reliability of communication.

Description of the drawings

Figure 1 is a schematic diagram of the network structure applicable to the embodiment of the present application;

Figure 2 is a flow chart of a dual connection function control method provided by an embodiment of the present application;

Figure 3 is a flow chart of another dual connection function control method provided by an embodiment of the present application;

Figure 4 is a structural diagram of a dual connection function control device provided by an embodiment of the present application;

Figure 5 is a structural diagram of another dual-connection function control device provided by an embodiment of the present application;

Figure 6 is a structural diagram of a communication device provided by an embodiment of the present application;

Figure 7 is a structural diagram of a terminal provided by an embodiment of the present application;

Figure 8 is a structural diagram of a network side device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the scope of protection of this application.

The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and "second" are distinguished objects It is usually one type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the related objects are in an "or" relationship.

It is worth pointing out that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE)/LTE Evolution (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 (FDMA), 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 this application are often used interchangeably, and the described technology can be used for both the systems and radio technologies mentioned above, and for Other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in much of the following description, but these techniques can also be applied to applications other than NR system applications, such as 6th ^generation Generation, 6G) communication system.

Figure 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, or a super mobile personal computer. (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), augmented reality (augmented reality, AR)/virtual reality (VR) equipment, robots, wearable devices (Wearable Device) , vehicle user equipment (VUE), pedestrian terminal (Pedestrian User Equipment, PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), game consoles, personal computers (personal computer, PC), teller machine or self-service machine and other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets) bracelets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network side equipment 12 may include access network equipment or core network equipment, where the access network equipment may also be called wireless access network equipment, radio access network (Radio Access Network, RAN), radio access network function or wireless access network unit. Access network equipment can include base stations, Wireless Local Area Network (WLAN) access points or WiFi nodes, etc. The base station can be called Node B, Evolved Node B (eNB), access point, base transceiver station ( Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home B-node, home evolved B-node, sending and receiving point ( Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiment of this application, only the NR system is used The base station is introduced as an example, and the specific type of base station is not limited.

To facilitate understanding, some contents involved in the embodiments of this application are described below:

1. Multi-SIM terminal (Multi-USIM)

A multi-card terminal refers to a terminal with more than one Subscriber Identity Module (SIM) card installed. Taking dual-card terminals as an example, dual-card terminals can be divided into single-send and single-receive, single-send and dual-receive, and dual-send and dual-receive terminals depending on whether the terminal supports simultaneous transmission or reception in the network of two cards.

Among them, a single-sending and single-receiving terminal means that the terminal can only send and receive information alternately on the two card networks through time division.

A single-transmitting and dual-receiving terminal means that the terminal can only alternately transmit uplink on the networks of two cards through time division, but supports downlink reception on the networks of two cards at the same time.

Dual-transmitting and dual-receiving terminals mean that the terminal supports uplink transmission and downlink reception on the networks of two cards at the same time.

2. DC and Carrier Aggregation (CA).

DC refers to the resource that provides two network nodes for the terminal. Among them, one network node is called MN, and the other is called for SN. At each network side node, CA can also be used, that is, the terminal is configured with a series of service cells controlled by the network node, and these service cells form a cell group. The cell group controlled by the MN is the Master Cell Group (MCG), and the cell group controlled by the SN is the Secondary Cell Group (SCG). Each cell group includes a special cell (Special Cell, SpCell) and a series of secondary cells (Secondary Cell, SCell). In MCG, the special cell is called Primary Cell (PCell), and in SCG, the special cell is called Primary Secondary Cell (PSCell).

3. SCG suspend.

SCG suspend generally refers to one of the following meanings:

Pause transmission on SCG;

Suspend the transmission of all Signaling Radio Bearer (SRB) and Data Radio Bearer (DRB) on the SCG;

Suspend the transmission of SCG's Packet Data Convergence Protocol (PDCP) and SCG RLC bearer.

When SCG fails (such as wireless link failure, random access failure, etc.), the UE can initiate the SCG failure information process. In this process, the terminal will suspend the SCG and generate an SCG failure information (SCGFailureInformation) message. This message Will be sent to the network side device through the MCG that is not in the pending state. The SCGfailureInformation message can carry a failure type (failure type) to indicate the cause of the SCG failure. The network side can take reasonable measures based on SCGfailureInformation, such as reconfiguring SCG, deleting SCG, etc.

4. SCG deactivation state.

When the amount of SCG data is low or the terminal is energy-saving or the terminal is overheated, the network side device can control the SCG in the deactivated state. Compared with directly releasing the SCG, it is beneficial to start quickly after the SCG data appears or the terminal overheating is alleviated. Data transmission on SCG.

During the SCG deactivation state, the terminal's behavior at least includes: all SCG SCells are in the deactivation state, the terminal does not monitor the physical downlink control channel (PDCCH) of the PSCell, and does not send the uplink shared channel (Uplink Shared Channel, UL-SCH), does not send sounding reference signal (Sounding Reference Signal, SRS). If the network side device is configured to perform Radio Link Monitoring (RLM)/Beam Failure Detection (BFD) during SCG deactivation, the terminal performs RLM and BFD of PSCell during SCG deactivation.

5. Temporary Capability restriction.

Currently, for dual-transmit, dual-receive, multi-card terminals, each card can use its own independent hardware module to support simultaneous reception and transmission. However, this method has problems such as low hardware usage efficiency and high cost. To this end, we study how to support dual-card terminals to dynamically divide capabilities between dual-card networks when the dual-card cards share some hardware modules. For example, when card A is in the connected state and card B is in the non-connected state, the terminal's capabilities are occupied by card A. If card B is going to establish or restore an RRC connection, it needs to cut some of the capabilities of card A to card B. At this time, the terminal needs to indicate the temporary limited capability status to network A. state (that is, some capabilities must be used for other cards), otherwise the terminal will lose data on network A or cause a waste of network resources and other problems.

The terminal indicates temporary limited capabilities to the network side device. The temporary limited capabilities may be that some wireless capabilities of the terminal are in an unsupported state for a short period of time, or the terminal may not change the wireless capabilities but request them from the network side. Or instruct to implement by disabling some functions/resources. For example, when a dual-SIM terminal is configured with DC in the connected state of network A, SCG is in the active state. If the terminal wants to initiate RRC connection establishment in network B at this time, the multi-card terminal can request to suspend/deactivate the SCG in network A.

It should be understood that the types of cards installed and used on the terminal include but are not limited to the above-mentioned data cards and voice cards. In each embodiment of the present application, for convenience of description, data cards and voice cards are taken as examples for illustrative description. Assume that one card of a dual-send and dual-receive dual-card terminal is a data card and the other is a voice card. A typical situation is that the data card reports its static capability to the network side device to support DC, and the voice card reports to the network side. Its own static capability only supports single connection. When the voice card is in the connected state and the data card initiates the RRC connection recovery process in the RRC inactive state, the network side device may configure the SCG for the data card or instruct the terminal to restore the stored SCG configuration in the RRC connection recovery message. In this case, the data card is configured with SCG, which will cause either the data card's SCG to fail to work properly, or the voice card to be disconnected, affecting terminal performance and wasting network resources. For this reason, the dual connection function control method of this application is proposed.

The dual connection function control method provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings through some embodiments and application scenarios.

Referring to Figure 2, an embodiment of the present application provides a dual connection function control method. As shown in Figure 2, the dual connection function control method includes:

Step 201: The terminal performs the first behavior;

Wherein, the first act includes at least one of the following:

In this embodiment of the present application, the above-mentioned terminal can perform the above-mentioned first behavior in a non-connected state, and the non-connected state includes an RRC idle state and an RRC inactive state. When the terminal is in the idle state, the first message is an RRC connection establishment request message. When the terminal is in the inactive state, the first message is an RRC connection recovery request message. It should be understood that when the terminal is in a non-connected state, it can be understood that a certain SIM card of the terminal is in a non-connected state. For example, when the voice card is in the connected state to perform voice services, the data card needs to enter the connected state. At this time, the terminal will perform the first behavior through the data card.

The above first indication information may be carried or indicated through the connection reason value field in the RRC connection establishment request message or the recovery reason value field in the RRC connection recovery request message, where the request not to configure the SCG and the request not to restore the saved SCG configuration are also It can be understood as requesting not to configure DC, requesting to release DC configuration, requesting to release SCG configuration. Set. In this way, the terminal instructs the terminal through the first indication information in the first message to request at least one of not configuring the SCG and requesting not to restore the saved SCG configuration, so that the network side device does not configure the SCG for the data card of the terminal or does not restore it. The saved SCG configuration will prevent the terminal's data card from working in DC mode after entering the connected state. Therefore, the impact on the current business of the voice card can be avoided and the reliability of communication can be improved. In addition, the terminal can also indicate to the network side device that it does not support DC at this time in the RRC connection establishment request message or the RRC connection recovery request message, or does not support the recovery of the saved SCG operation, or the SCG capability is limited, and can also achieve the above Effect.

Optionally, restricting the terminal from performing dual-connection DC may be understood to mean that compared with the normal working mode of DC, at least part of the DC sub-functions may not be executed under dual-card conditions. For example, in some embodiments, by not performing SCG configuration, not restoring SCG configuration, releasing SCG configuration, not activating SCG, not performing random access on PSCell, not performing some operations that need to be performed when SCG is activated and not performing SCG Some operations that need to be performed during deactivation are required to restrict the terminal from performing dual connection DC. In this way, the terminal can avoid the impact on the current business of the voice card and reduce the impact on the DC function of the data card after the terminal's data card enters the connected state through the second operation, thereby improving the reliability of communication.

It should be noted that the above-mentioned first configuration information may indicate the target state of the SCG, and the target state is the state that the SCG will enter when receiving the RRC connection recovery message. Depending on the target state, the behavior of the terminal and the network side device is different. The following describes the different target states:

In some embodiments, the target state of the SCG may be the active state.

Optionally, considering that the network side device directly activates the SCG when the RRC connection is restored, it may be that downlink data of the SCG arrives. If the SCG of the data card is unavailable at this time (occupied by the voice card), the terminal should immediately trigger the reporting of limited SCG capability information. In this way, the network side equipment can take reasonable measures as soon as possible, such as sending the downlink data of the SCG through the MCG, changing the bearer (that is, the uplink and downlink bearers change), deactivating the SCG or releasing the SCG, etc.

Optionally, if the RRC connection recovery message carries the SCG configuration, the terminal will trigger the random access (Random Access Channel, RACH) of the PSCell according to the process in the related technology. Considering that one of the terminal's transceivers is being used for the voice card, the terminal may choose to keep the voice card connected and give up performing RACH on the SCG. Since RACH is not executed, SCG failure information will be reported after T304 times out, indicating that the failure reason is synchronization reconfiguration failure. The reason for this SCG failure is meaningless to the network.

In some embodiments, the target state of the SCG may be a deactivated state.

Optionally, if the network is configured with RLM/BFD, the UE needs to perform RLM and BFD during SCG deactivation. However, if the terminal has one transceiver for the voice card and one transceiver for the MCG of the data card, there may be no way to perform RLM/BFD measurement of PSCell.

To this end, the embodiments of this application clarify the specific behavior of the terminal through target operations to ensure the reliability of communication. Optionally, in some embodiments, the target operation includes at least one of the following:

Operation 1: If the first configuration information includes SCG configuration and/or second indication information, ignore the first configuration information;

Operation 2: In the case where the first configuration information is carried through the RRC connection recovery message and the first configuration information includes SCG configuration and/or second indication information, perform the configuration operation of the SCG and report it to the network side. The device sends third indication information, where the third indication information is used to request the release of the SCG;

Operation 3: If the first configuration information includes SCG configuration and/or second indication information, and the target state of the SCG is an activated state, do not activate the SCG;

Operation 4: When the first configuration information is carried through the RRC connection recovery message, the first configuration information includes SCG configuration and/or second indication information, and the target state of the SCG is an active state, Activate the SCG, and send fourth indication information to the network side device, where the fourth indication information includes at least one of the following: an SCG deactivation request, an SCG release request, and a fifth indication indicating that the SCG capability is limited. information;

Operation 5: When the first configuration information instructs the terminal to initiate random access on the primary and secondary serving cells PSCell, the terminal determines whether to perform random access on the primary and secondary serving cells PSCell and/or whether to start The first timer associated with random access;

Operation 6: In the case where the first configuration information includes SCG configuration and/or second indication information, the target state of the SCG is a deactivation state, and the terminal is configured to perform target measurement during SCG deactivation, determine Whether to perform the target measurement, the target measurement includes at least one of wireless link monitoring RLM, beam failure detection BFD and radio resource management RRM measurement;

Wherein, the second instruction information is used to instruct the terminal to restore the saved SCG configuration.

In the embodiment of this application, the SCG configuration carried in the first configuration information may include the full configuration for configuring the SCG, or it may be the delta configuration for configuring the SCG. In the first configuration information When the carried SCG configuration is an incremental configuration, the terminal may perform the SCG configuration operation based on the SCG configuration carried in the first configuration information and the pre-saved SCG configuration.

Regarding the above operation 1, the terminal can choose to ignore the first configuration information when the SCG cannot be used, and further notify the network side device to avoid the terminal triggering some unnecessary processes based on the SCG configuration, resulting in a waste of resources. For example, in the case where the target operation includes ignoring the first configuration information, the method further includes:

The terminal performs a second behavior, and the second behavior includes any of the following:

Send sixth indication information, the sixth indication information being used to indicate that the SCG configuration or the recovery of the SCG configuration has not been successfully executed;

If the first configuration information is carried through the target downlink message, the terminal sends a response message to the target downlink message. Does not carry confirmation information corresponding to the first configuration information;

Perform RRC connection reestablishment.

Regarding the above operation 2, the above third indication information can be carried through the RRC connection recovery completion message. Since the network side device is requested to release the SCG, the corresponding operation can be performed when the corresponding indication information from the network side device is received. . For example, when a release command is received, the SCG can be released; when a suspend command is received, the SCG status can be set to suspended; when a deactivation command is received, the SCG status can be set to deactivation. The SCG configuration operation includes at least one of SCG addition, SCG reconfiguration, SCG change, and SCG configuration restoration.

For the above operation 3, not activating the SCG includes: setting the SCG to a deactivated state or a suspended state. The specific status may be agreed upon by the protocol or indicated in advance by the network side device. Optionally, in some embodiments, when the first configuration information includes SCG configuration and/or second indication information, and the target state of the SCG is an activated state, after the SCG is not activated, The above methods also include:

The terminal reports the status information of the SCG to the network side device.

In the embodiment of this application, when the SCG cannot be activated, the terminal can set the SCG to an appropriate state by itself and notify the network side device to prevent the terminal from triggering some unnecessary processes based on the SCG configuration.

Regarding the above operation 4, the above fourth indication information can be carried through the RRC connection recovery completion message. Since the network side device is requested to release the SCG, the corresponding operation can be performed when the corresponding indication information from the network side device is received. . For example, an SCG can be released when a release command is received.

For the above operation 5, it may be determined based on a first condition whether to perform random access on the PSCell and whether to start the first timer associated with the random access, where the first condition includes at least one of the following:

The target transmission capability of the terminal is switched between at least two subscriber identification cards;

The terminal does not support DC within the preset time period;

The SCG capability of the terminal is limited.

Switching the target transmission capability of the terminal between at least two subscriber identity cards can be understood as the terminal performing multi-card operations, or it can also be understood as at least two subscriber identity cards performing transmission operations with the same set of hardware or radio frequency. The above-mentioned first timer can be called timer T304.

It should be noted that in this embodiment of the present application, it may first be determined based on the first condition whether to perform random access on the PSCell, and whether to start the first timer based on the determination result. For example, when it is determined not to perform random access on the PSCell based on the first condition, it is determined not to start the first timer.

Optionally, in some embodiments, when starting the first timer, the method further includes:

During the running of the first timer, the terminal performs a third behavior, the third behavior includes at least one of the following:

Determine whether to perform the random access;

When receiving the deactivation command of the SCG, stop the first timer;

Upon receiving the reconfiguration information of the first timer, restart the first timer;

When receiving an instruction from the network side device that the terminal stops the first timer, the first timer is stopped.

In the embodiment of the present application, during the operation of the first timer, the terminal may initiate random access on the PSCell according to whether there is a random access in a pending state.

When the first timer times out, if the random access is not successfully executed or is suspended, the terminal initiates an SCG failure information process or the terminal does not initiate an SCG failure information process;

Wherein, the failure type indicated in the SCG failure information process initiated by the terminal includes at least one of the following: SCG deactivation request, SCG release request, seventh indication information used to indicate that the SCG capability is limited, and Eighth indication information indicating that the target transmission capability of the terminal is switched between at least two subscriber identity cards.

In the embodiment of this application, in the case where the terminal does not initiate the SCG failure information process, the method further includes:

Optionally, the terminal reporting the status information of the SCG to the network side device includes:

The terminal reports the status information of the SCG to the network side device through terminal auxiliary information.

Since the status information of the SCG is reported to the network side device through the auxiliary information, the network side can avoid triggering other additional processes when the terminal is not connected to the SCG, thereby avoiding unnecessary signaling process overhead and waste of resources, and further ensuring communication reliability.

For the above operation 6, the terminal may determine whether to perform the target measurement based on the first condition. For example, if the first condition is satisfied, the target measurement will not be performed. If the first condition is not satisfied, the target measurement will be performed. In the embodiment of the present application, since the terminal does not perform the target measurement when the first condition is met, it can be avoided that the network side still sends the measurement reference signal when the terminal cannot perform the measurement and wastes network side resources. At the same time, it can avoid the interruption of the voice service of the voice card due to the measurement of the data card, thereby improving the reliability of communication.

Optionally, in some embodiments, in the case where the terminal determines not to perform the target measurement, the method further includes:

The terminal sends a second message to the network side device, where the second message is used to request not to perform the target measurement.

In the embodiment of this application, the above-mentioned second message can be restored through the RRC connection to complete the message bearing. After receiving the second message, the network side device can instruct the specific behavior of the terminal. The terminal can perform target measurement before sending the second message. After receiving the instruction from the network side device, the specific behavior of the target measurement is determined based on the instruction. For example, in some implementations, after the terminal sends the second message to the network side device, the method further includes:

If the terminal receives the ninth instruction information for instructing to stop the target measurement, the terminal stops the target measurement.

In the embodiment of this application, the terminal can decide whether to trigger random access on the PSCell based on the resource occupancy of multiple cards. It can avoid the first timer timeout trigger by not performing random access on the PSCell and not starting the first timer. SCG failure information reporting process.

In order to better understand this application, some specific examples are described below.

Optionally, in some embodiments, the terminal RRC connection recovery request message indicates that the terminal does not want to be configured with a DC. Specifically, it includes the following processes:

Step 1, the terminal is in RRC INACTIVE state;

Step 2: The terminal initiates the RRC connection recovery process. For example, a downlink paging message is received, or an uplink service occurs;

The reason value in step 2 indicates at least one of the following:

Request not to configure SCG;

Request not to configure DC;

Request not to restore the saved SCG configuration.

Optionally, if the first condition is met, the reason value in step 2 indicates at least one of the following: request not to configure the SCG; request not to configure the DC; request not to restore the saved SCG configuration. The first condition includes at least one of the following:

Multi-card operation of terminal;

The terminal does not support DC for the time being;

The terminal's SCG capability is limited.

In this embodiment, the network side device can avoid configuring the SCG for the terminal and/or restore the SCG configuration saved by the terminal in the RRC connection recovery message.

Optionally, in some embodiments, if the RRC connection recovery message includes configuring the SCG, the terminal ignores the SCG configuration. Specifically, it includes the following processes:

Step 1, the terminal is in RRC INACTIVE state;

Step 2: The terminal sends an RRC connection recovery request message. For example, a downlink paging message is received, or an uplink service occurs;

Step 3: The terminal receives the RRC connection recovery message. If the message carries SCG configuration (full configuration or delta configuration), the terminal determines whether to ignore the SCG configuration. Optionally, if the first condition is met, the terminal ignores the SCG configuration. Further, when the SCG target state is active, the terminal ignores the SCG configuration.

Step 4: When ignoring the SCG configuration, the terminal indicates at least one of the following in the RRC connection recovery completion message:

The SCG configuration was not successfully executed;

In the case where the SCG configuration is carried in the SN reconfiguration message of the RRC connection recovery message, the response message (such as nr-SCG-Response) of the SN reconfiguration message does not appear to implicitly indicate that the SCG configuration is not performed.

In this embodiment, the terminal can choose to ignore the SCG configuration when it cannot use the SCG and notify the network side device, which can prevent the terminal from triggering some processes in related technologies based on the SCG configuration.

Optionally, in some embodiments, if the RRC connection recovery message is configured with SCG and the SCG target state is active, the terminal does not perform SCG activation. Specifically, it includes the following processes:

Step 1, the terminal is in RRC INACTIVE state;

Step 3: The terminal receives the RRC connection recovery message. If the message carries the SCG configuration and the target SCG status is active, the terminal determines whether to activate the SCG. Optionally, if the first condition is met, the terminal decides not to activate the SCG. When the SCG is not activated, the terminal sets the SCG to a deactivated state, a suspended state, or releases the SCG.

Step 4: The terminal sends an RRC connection recovery completion message, which indicates to the network side device that the SCG is in a deactivated state, a suspended state, or the SCG is released.

Optionally, when the terminal determines not to activate the SCG, it determines which one of SCG deactivation, SCG suspension, and SCG release to perform according to the protocol agreement, or the instructions of the network side device, or the implementation of the terminal.

In this embodiment, when the SCG cannot be activated, the terminal can set the SCG to an appropriate state by itself and notify the network side device to avoid triggering other processes based on the SCG configuration.

Optionally, in some embodiments, if the RRC connection recovery message is configured with an SCG and the SCG target state is active, the terminal activates the SCG and requests deactivation or release of the SCG in the RRC connection recovery completion message. Specifically, it includes the following processes:

Step 1, the terminal is in RRC INACTIVE state;

Step 3: The terminal receives the RRC connection recovery message. If the RRC connection is restored, the message carries the SCG configuration and the SCG target status is active, the terminal activates the SCG;

Step 4: The terminal sends an RRC connection recovery completion message. If the first condition is met, the RRC connection recovery completion message carries an SCG deactivation request or SCG release request, or indicates that the SCG is unavailable.

Step 5: If the terminal receives the SCG release command, it performs the SCG release operation. If the terminal receives the SCG deactivation command, it executes the SCG deactivation command. If T304 of PSCell is running when receiving the SCG deactivation command, the terminal stops T304.

Optionally, in some embodiments, if the RRC connection recovery message is configured with SCG and the SCG target state is active, the terminal activates SCG, does not perform RACH, does not start T304, and reports SCG status information. Specifically, it includes the following processes:

Step 1, the terminal is in RRC INACTIVE state;

Step 4: The terminal determines whether to perform random access on PSCell. Optionally, if the first condition is met, random access on the PSCell is not performed. Without performing random access on PSCell, the terminal does not initiate T304.

Step 5: Optionally, the terminal indicates to the network side device that the SCG is unavailable, or requests SCG deactivation, or requests SCG release. For example, this may be indicated to the network side device in the RRC connection recovery completion message.

In this embodiment, the terminal may not trigger random access on PSCell at this time based on the resource occupancy of multiple cards. And it avoids the expiration of the random access timer T304 and triggering the SCG failure information reporting process.

Step 1, the terminal is in RRC INACTIVE state;

Step 4: The terminal determines whether to perform random access on PSCell. Optionally, if the first condition is met, random access on the PSCell is not performed. Without performing random access on PSCell, the terminal initiates T304.

Step 5: During the operation of T304, the terminal determines whether random access can be performed. For example, if the first condition is not satisfied, it is determined that random access can be performed. When it is determined that random access can be performed and there is a random access in the pending state, random access is initiated on the PSCell.

Step 6. If the T304 times out and the terminal has not initiated random access on PSCell, the terminal performs one of the following operations:

The SCG failure information process is not initiated. Optionally, the SCG status information is reported to the network side device. For example, initiate a UAI process to indicate SCG status information;

Initiate the SCG failure information process, in which the failure type indicates that the SCG is unavailable, or requests to deactivate the SCG, or requests to release the SCG, or multiple cards.

Optionally, in some embodiments, if the RRC connection recovery message is configured with SCG and the target SCG status is deactivated, the terminal indicates to the network side device that RLM/BFD during SCG deactivation is not supported. Specifically, it includes the following processes:

Step 1, the terminal is in RRC INACTIVE state;

Step 3: The terminal receives the RRC connection recovery message. If the message carries the SCG configuration and the target SCG status is deactivated, the terminal determines whether to deactivate the SCG. If it is judged not to deactivate the SCG, the terminal releases the SCG.

Step 4, if the terminal performs SCG deactivation according to step 3. If the network side device is configured to execute RLM and BFD during SCG deactivation, the terminal determines whether to execute RLM and BFD during SCG deactivation. For example, if the transmission capability related to the terminal's SCG is occupied by another card, it is determined that the terminal does not perform RLM and BFD during SCG deactivation.

Step 5: When it is determined that RLM and BFD are not to be performed, the terminal requests the network side device to disable these two measurements.

Alternatively, the terminal may perform RLM/BFD before requesting, and stop RLM/BFD when the network side device indicates not to perform RLM/BFD.

Optionally, in some embodiments, the terminal RRC connection establishment request message indicates that the terminal does not want to be configured with a DC. Specifically, it includes the following processes:

Step 1, the terminal is in RRC idle state;

Step 2: The terminal initiates the RRC connection establishment process. For example, a downlink paging message is received, or an uplink service occurs;

The reason value in step 2 indicates at least one of the following:

Request not to configure SCG;

Request not to configure DC;

Request not to restore the saved SCG configuration.

Multi-card operation of terminal;

The terminal does not support DC for the time being;

The terminal's SCG capability is limited.

Referring to Figure 3, an embodiment of the present application also provides a dual connection function control method. As shown in Figure 3, the dual connection function control method includes:

Step 301: The network side device performs the fourth behavior;

Wherein, the fourth behavior includes at least one of the following:

In the embodiment of the present application, the above-mentioned acquisition of the context information of the terminal can be understood as the network side device obtaining the context information of the terminal from other network devices, such as obtaining the context information of the terminal from an anchor base station or a core network. The context Information can be understood as the context of the Access Stratum (AS).

Since the network side device obtains the context information of the terminal, it can decide whether to carry the SCG configuration and/or indicate whether to restore the saved SCG configuration according to the context information of the terminal. In addition, in the case of carrying the SCG configuration and/or instructing the terminal to restore the saved SCG configuration, set an appropriate target state for the SCG. In this way, one user identification card of the terminal can limit the DC function after entering the connected state, thereby avoiding the impact on the current business of the other user identification card and improving the reliability of communication. For example, in some embodiments, assume that the terminal in the RRC INACTIVE state initiates an RRC connection recovery request message to the serving base station; the serving base station may perform the following process:

Step 1, RRC connection recovery request message of the serving base station terminal;

Step 2: The serving base station obtains the AS context of the terminal from the anchor base station, where the AS context includes at least one of the following:

SCG capability information of the terminal;

DC capability information of the terminal;

Multi-card auxiliary information of the terminal;

Step 3: The serving base station sends an RRC connection recovery message to the terminal, which determines whether to carry the SCG configuration and/or instructs the terminal whether to restore the saved SCG configuration according to the AS context of the terminal.

Optionally, in the case of carrying the SCG configuration and/or instructing the terminal to restore the saved SCG configuration, set an appropriate SCG target state.

Optionally, the target operation includes at least one of the following:

If the first configuration information includes SCG configuration and/or second indication information, ignore the first configuration information;

In the case where the first configuration information is carried through the RRC connection recovery message, and the first configuration information includes SCG configuration and/or second indication information, perform the configuration operation of the SCG and send the first configuration operation to the network side device. Three indication information, the third indication information is used to request the release of the SCG;

When the first configuration information includes SCG configuration and/or second indication information, and the target state of the SCG is an activated state, do not activate the SCG;

When the first configuration information is carried through an RRC connection recovery message, the first configuration information includes SCG configuration and/or second indication information, and the target state of the SCG is an active state, activate the SCG, and sends fourth indication information to the network side device, where the fourth indication information includes at least one of the following: an SCG deactivation request, an SCG release request, and fifth indication information used to indicate that the SCG capability is limited;

When the first configuration information indicates that the terminal initiates random access on the primary and secondary serving cells PSCell, the terminal determines whether to perform random access on the primary and secondary serving cells PSCell and/or whether to start the random access. Access the associated first timer;

In the case where the first configuration information includes SCG configuration and/or second indication information, the target state of the SCG is a deactivation state, and the terminal is configured to perform target measurement during SCG deactivation, determine whether to perform the Described target measurement, the described target measurement includes at least one of wireless link monitoring RLM, beam failure detection BFD and radio resource management RRM measurement;

Optionally, in the case where the target operation includes ignoring the first configuration information, the method further includes:

The network side device performs a fifth behavior, and the fifth behavior includes any of the following:

Receive sixth indication information from the terminal, the sixth indication information being used to indicate that the SCG configuration or the recovery of the SCG configuration was not successfully executed;

If the first configuration information is carried by the target downlink message, the network side device receives the response of the target downlink message. response message, and when the response message for sending the target downlink message does not carry confirmation information corresponding to the first configuration information, determine that the terminal ignores the first configuration information.

Optionally, in some embodiments, in the case of ignoring the first configuration information, the terminal may further delete the saved SCG configuration.

Optionally, the deactivating the SCG includes: setting the SCG to a deactivated state or a suspended state. Optionally, in other embodiments, deactivating the SCG may also include setting the SCG to a third state, such as setting it to a sleep state.

Optionally, the target operation includes: when the first configuration information includes SCG configuration and/or second indication information, and the target state of the SCG is an activated state, when the SCG is not activated, the Methods also include:

The network side device receives the status information of the SCG from the terminal.

Optionally, in the case where the first timer is started and the terminal does not initiate an SCG failure information process after the first timer times out, the method further includes:

The network side device receives a fourth message from the terminal. The fourth message is a message in the SCG failure information process initiated by the terminal. The failure type indicated by the fourth message includes at least one of the following: SCG deactivation. request, an SCG release request, seventh indication information used to indicate that the SCG capability is limited, and eighth indication information used to indicate that the target transmission capability of the terminal is switched between at least two subscriber identity cards.

Optionally, the status information of the SCG is carried in terminal assistance information.

Optionally, in the case where the terminal determines not to perform the target measurement, the method further includes:

The network side device receives a second message from the terminal, where the second message is used to request not to perform the target measurement.

Optionally, after the network side device receives the second message from the terminal, the method further includes:

The network side device sends ninth instruction information to the terminal, where the ninth instruction information is used to instruct to stop the target measurement.

For the dual connection function control method provided by the embodiment of the present application, the execution subject may be a dual connection function control device. In the embodiment of the present application, a dual connection function control device performing a dual connection function control method is used as an example to illustrate the dual connection function control device provided by the embodiment of the present application.

Referring to Figure 4, an embodiment of the present application provides a dual connection function control device. As shown in Figure 4, the dual connection function control device 400 includes:

The first execution module 401 is used to execute the first behavior;

Wherein, the first act includes at least one of the following:

Send a first message to the network side device, the first message including first indication information, the first indication information being used to instruct the terminal to request at least one of not configuring the secondary cell group SCG and requesting not to restore the saved SCG configuration. , described The first message includes a radio resource control RRC connection recovery request message or an RRC connection establishment request message;

Optionally, the target operation includes at least one of the following:

Optionally, the first execution module 401 is also configured to: execute a second behavior, where the second behavior includes any of the following:

If the first configuration information is carried by the target downlink message, the terminal does not carry the confirmation information corresponding to the first configuration information when sending the response message of the target downlink message;

Perform RRC connection reestablishment.

Optionally, the deactivating the SCG includes: setting the SCG to a deactivated state or a suspended state.

Optionally, the dual connection function control device 400 also includes:

The first sending module is used to report the status information of the SCG to the network side device.

Optionally, when the first timer is started, the first execution module 401 is also configured to perform a third behavior on the terminal during the running of the first timer, and the third behavior Include at least one of the following:

Determine whether to perform the random access;

When receiving the deactivation command of the SCG, stop the first timer;

Optionally, when the first timer is started, the first execution module 401 is also used when the first timer times out, if the random access is not successfully executed or is suspended. , the terminal initiates the SCG failure information process or the terminal does not initiate the SCG failure information process;

Optionally, the dual connection function control device 400 also includes:

The first sending module is configured to report the status information of the SCG to the network side device when the terminal does not initiate an SCG failure information process.

Optionally, the first sending module is specifically configured to report the status information of the SCG to the network side device through terminal assistance information.

Optionally, the dual connection function control device 400 also includes:

The first sending module is configured to send a second message to the network side device when the terminal determines not to perform the target measurement, where the second message is used to request not to perform the target measurement.

Optionally, the first execution module 401 is also configured to stop the target measurement when the terminal receives ninth instruction information indicating to stop the target measurement.

Optionally, the first execution module 401 is specifically configured to: when the first condition is met, the terminal executes the first behavior;

Wherein, the first condition includes at least one of the following:

The terminal does not support DC within the preset time period;

The SCG capability of the terminal is limited.

Referring to Figure 5, an embodiment of the present application provides a dual connection function control device. As shown in Figure 5, the dual connection function control device 500 includes:

The second execution module 501 is used to execute the fourth behavior;

Wherein, the fourth behavior includes at least one of the following:

Optionally, the target operation includes at least one of the following:

If the first configuration information is carried by the target downlink message, the network side device receives the response message of the target downlink message, and sends the response message of the target downlink message without carrying the confirmation information corresponding to the first configuration information. , determining that the terminal ignores the first configuration information.

Optionally, the target operation includes: when the first configuration information includes SCG configuration and/or second indication information, and the target state of the SCG is an activated state, when the SCG is not activated, the The dual connection function control device 500 also includes:

The receiving module is configured to receive the status information of the SCG from the terminal.

Optionally, the dual connection function control device 500 also includes:

A receiving module configured to receive a fourth message from the terminal when the first timer is started and the terminal does not initiate an SCG failure information process after the first timer times out. The fourth message Initiate a message in the SCG failure information process for the terminal. The failure type indicated by the fourth message includes at least one of the following: SCG deactivation request, SCG release request, and a seventh indication used to indicate that the SCG capability is limited. information and eighth instruction information used to instruct the terminal's target transmission capability to switch between at least two subscriber identity cards.

Optionally, the dual connection function control device 500 also includes:

A receiving module configured to receive the status information of the SCG from the terminal when the first timer is started and the terminal does not initiate an SCG failure information process after the first timer times out.

Optionally, the dual connection function control device 500 also includes:

A receiving module, configured to receive a second message from the terminal when the terminal determines not to perform the target measurement, where the second message is used to request not to perform the target measurement.

Optionally, the dual connection function control device 500 also includes:

The second sending module is configured to send ninth indication information to the terminal, where the ninth indication information is used to instruct to stop the target measurement.

The dual-connection function control device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip. The electronic device may be a terminal or other devices other than the terminal. For example, terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.

The dual connection function control device provided by the embodiment of the present application can implement each process implemented by the method embodiment of Figures 2 to 3, and achieve the same technical effect. To avoid duplication, the details will not be described here.

Optionally, as shown in Figure 6, this embodiment of the present application also provides a communication device 600, which includes a processor 601 and a memory 602. The memory 602 stores programs or instructions that can be run on the processor 601. When the program or instruction is executed by the processor 601, each step of the above dual connection function control method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, the details will not be described here.

An embodiment of the present application also provides a terminal, including a processor and a communication interface. The processor is configured to perform a first behavior; wherein the first behavior includes at least one of the following: sending a first message to a network side device, and the first behavior A message includes first indication information. The first indication information is used to instruct the terminal to request at least one of not configuring the secondary cell group SCG and requesting not to restore the saved SCG configuration. The first message includes radio resource control. RRC connection recovery request message or RRC connection establishment request message; in the case of receiving the first configuration information, perform the target operation, the first configuration information is used to control the SCG, and the target operation is used to limit the terminal to perform dual Connect to DC. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment. Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect. Specifically, FIG. 7 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.

The terminal 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, a processor 710, etc. At least some parts.

Those skilled in the art can understand that the terminal 700 may also include a power supply (such as a battery) that supplies power to various components. The power supply may be logically connected to the processor 710 through a power management system, thereby managing charging, discharging, and power consumption through the power management system. Management and other functions. The terminal structure shown in FIG. 7 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or some components may be combined or arranged differently, which will not be described again here.

It should be understood that in the embodiment of the present application, the input unit 704 may include a graphics processing unit (Graphics Processing Unit, GPU) 7041 and a microphone 7042. The graphics processor 7041 is responsible for the image capture device (GPU) in the video capture mode or the image capture mode. Process the image data of still pictures or videos obtained by cameras (such as cameras). The display unit 706 may include a display panel 7061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 707 includes a touch panel 7071 and at least one of other input devices 7072 . Touch panel 7071, also called touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. Other input devices 7072 may include but are not limited to physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here.

In this embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 701 can transmit it to the processor 710 for processing; in addition, the radio frequency unit 701 can send uplink data to the network side device. Generally, the radio frequency unit 701 includes, but is not limited to, an antenna, amplifier, transceiver, coupler, low noise amplifier, duplexer, etc.

Memory 709 may be used to store software programs or instructions as well as various data. The memory 709 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, Image playback function, etc.) etc. Additionally, memory 709 may include volatile memory or non-volatile memory, or memory 709 may include both volatile and non-volatile memory. Among them, non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory. Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch link DRAM) , SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM). Memory 709 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

The processor 710 may include one or more processing units; optionally, the processor 710 integrates an application processor and a modem processor, where the application processor mainly handles operations related to the operating system, user interface, application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the above modem The processor may not be integrated into processor 710.

Among them, the processor 710 is used to perform the first behavior;

Wherein, the first act includes at least one of the following:

An embodiment of the present application also provides a network side device, including a processor and a communication interface. The processor is configured to perform a fourth behavior; wherein the fourth behavior includes at least one of the following: receiving a first message from a terminal, the third behavior A message includes first indication information. The first indication information is used to instruct the terminal to request at least one of not configuring the secondary cell group SCG and requesting not to restore the saved SCG configuration. The first message includes radio resource control. RRC connection recovery request message or RRC connection establishment request message; sending first configuration information to the terminal, the first configuration information is used for the terminal to perform a target operation, and the target operation restricts the terminal from performing dual connection DC; During the RRC connection recovery process of the terminal, context information of the terminal is obtained, and the context information includes at least one of the following: SCG capability information, DC capability information and multi-card auxiliary information. This network-side device embodiment corresponds to the above-mentioned network-side device method embodiment. Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.

Specifically, the embodiment of the present application also provides a network side device. As shown in FIG. 8 , the network side device 800 includes: an antenna 801 , a radio frequency device 802 , a baseband device 803 , a processor 804 and a memory 805 . Antenna 801 is connected to radio frequency device 802. In the uplink direction, the radio frequency device 802 receives information through the antenna 801 and sends the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes the information to be sent and sends it to the radio frequency device 802. The radio frequency device 802 processes the received information and then sends it out through the antenna 801.

The method performed by the network side device in the above embodiment can be implemented in the baseband device 803, which includes a baseband processor.

The baseband device 803 may include, for example, at least one baseband board on which multiple chips are disposed, as shown in FIG. Program to perform the network device operations shown in the above method embodiments.

The network side device may also include a network interface 806, which is, for example, a common public radio interface (CPRI).

Specifically, the network side device 800 in this embodiment of the present application also includes: instructions or programs stored in the memory 805 and executable on the processor 804. The processor 804 calls the instructions or programs in the memory 805 to execute each of the steps shown in Figure 5. The method of module execution and achieving the same technical effect will not be described in detail here to avoid duplication.

Embodiments of the present application also provide a readable storage medium. Programs or instructions are stored on the readable storage medium. When the program or instructions are executed by a processor, each process of the above dual connection function control method embodiment is implemented, and can reach phase The same technical effects are not repeated here to avoid repetition.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, etc.

An embodiment of the present application further provides a chip. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the above dual connection function control method. Each process in the example can achieve the same technical effect. To avoid repetition, we will not repeat it here.

It should be understood that the chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.

Embodiments of the present application further provide a computer program/program product. The computer program/program product is stored in a storage medium. The computer program/program product is executed by at least one processor to implement the above dual connection function control method. Each process of the embodiment can achieve the same technical effect, so to avoid repetition, it will not be described again here.

Embodiments of the present application also provide a communication system, including: a terminal and a network-side device. The terminal is used to perform various processes in Figure 2 and the above terminal-side method embodiment. The network-side device is used to perform the processes in Figure 2 and the above terminal-side method embodiment. 3 and each process of the above network side method embodiment, and can achieve the same technical effect, so to avoid duplication, they will not be described again here.

It should be noted that, in this document, the terms "comprising", "comprises" or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device that includes a series of elements not only includes those elements, It also includes other elements not expressly listed or inherent in the process, method, article or apparatus. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article or apparatus that includes that 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, but may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions may be performed, for example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments 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. implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to related technologies. The computer software product is stored in a storage medium (such as ROM/RAM, disk, CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Inspired by this application, many forms can be made without departing from the purpose of this application and the scope protected by the claims, all of which fall within the protection of this application.

Claims

A dual connection function control method, including:

The terminal executes the first behavior;

Wherein, the first act includes at least one of the following:

Send a first message to the network side device, where the first message includes first indication information, where the first indication information is used to instruct the terminal to request not to configure the secondary cell group SCG and to request not to restore at least one of the saved SCG configurations. One item, the first message includes a radio resource control RRC connection recovery request message or an RRC connection establishment request message;

In the case where the first configuration information is received, a target operation is performed, the first configuration information is used to control the SCG, and the target operation is used to restrict the terminal from performing dual connection DC.
The method of claim 1, wherein the target operation includes at least one of the following:

If the first configuration information includes SCG configuration and/or second indication information, ignore the first configuration information;

In the case where the first configuration information is carried through the RRC connection recovery message, and the first configuration information includes SCG configuration and/or second indication information, perform the configuration operation of the SCG and send the first configuration operation to the network side device. Three indication information, the third indication information is used to request the release of the SCG;

When the first configuration information includes SCG configuration and/or second indication information, and the target state of the SCG is an activated state, do not activate the SCG;

When the first configuration information is carried through an RRC connection recovery message, the first configuration information includes SCG configuration and/or second indication information, and the target state of the SCG is an active state, activate the SCG, and sends fourth indication information to the network side device, where the fourth indication information includes at least one of the following: an SCG deactivation request, an SCG release request, and fifth indication information used to indicate that the SCG capability is limited;

When the first configuration information indicates that the terminal initiates random access on the primary and secondary serving cells PSCell, the terminal determines whether to perform random access on the primary and secondary serving cells PSCell and/or whether to start the random access. Access the associated first timer;

In the case where the first configuration information includes SCG configuration and/or second indication information, the target state of the SCG is a deactivation state, and the terminal is configured to perform target measurement during SCG deactivation, determine whether to perform the Described target measurement, the described target measurement includes at least one of wireless link monitoring RLM, beam failure detection BFD and radio resource management RRM measurement;

Wherein, the second instruction information is used to instruct the terminal to restore the saved SCG configuration.
The method of claim 2, wherein when the target operation includes ignoring the first configuration information, the method further includes:

The terminal performs a second behavior, and the second behavior includes any of the following:

Send sixth indication information, the sixth indication information being used to indicate that the SCG configuration or the recovery of the SCG configuration has not been successfully executed;

If the first configuration information is carried by the target downlink message, the terminal does not carry the confirmation information corresponding to the first configuration information when sending the response message of the target downlink message;

Perform RRC connection reestablishment.
The method of claim 2, wherein deactivating the SCG includes setting the SCG to a deactivated state or a suspended state.
The method according to claim 4, wherein, in the case where the first configuration information includes SCG configuration and/or second indication information, and the target state of the SCG is an activated state, after the SCG is not activated, The method also includes:

The terminal reports the status information of the SCG to the network side device.
The method according to claim 2, wherein in the case of starting the first timer, the method further includes:

During the running of the first timer, the terminal performs a third behavior, the third behavior includes at least one of the following:

Determine whether to perform the random access;

When receiving the deactivation command of the SCG, stop the first timer;

Upon receiving the reconfiguration information of the first timer, restart the first timer;

When receiving an instruction from the network side device that the terminal stops the first timer, the first timer is stopped.
The method according to claim 2, wherein in the case of starting the first timer, the method further includes:

When the first timer times out, if the random access is not successfully executed or is suspended, the terminal initiates an SCG failure information process or the terminal does not initiate an SCG failure information process;

Wherein, the failure type indicated in the SCG failure information process initiated by the terminal includes at least one of the following: SCG deactivation request, SCG release request, seventh indication information used to indicate that the SCG capability is limited, and Eighth indication information indicating that the target transmission capability of the terminal is switched between at least two subscriber identity cards.
The method according to claim 7, wherein, in the case where the terminal does not initiate the SCG failure information process, the method further includes:

The terminal reports the status information of the SCG to the network side device.
The method according to claim 8, wherein the terminal reporting the status information of the SCG to the network side device includes:

The terminal reports the status information of the SCG to the network side device through terminal auxiliary information.
The method according to claim 2, wherein in the case where the terminal determines not to perform the target measurement, the method further includes:

The terminal sends a second message to the network side device, where the second message is used to request not to perform the target measurement.
The method according to claim 10, wherein after the terminal sends the second message to the network side device, the method further includes:

If the terminal receives the ninth instruction information for instructing to stop the target measurement, the terminal stops the target measurement.
The method according to any one of claims 1 to 11, wherein the terminal performing the first behavior includes:

When the first condition is met, the terminal performs the first behavior;

Wherein, the first condition includes at least one of the following:

The target transmission capability of the terminal is switched between at least two subscriber identification cards;

The terminal does not support DC within the preset time period;

The SCG capability of the terminal is limited.
A dual connection function control method, including:

The network side device performs the fourth behavior;

Wherein, the fourth behavior includes at least one of the following:

Receive a first message from the terminal, the first message includes first indication information, the first indication information is used to instruct the terminal to request at least one of not configuring the secondary cell group SCG and requesting not to restore the saved SCG configuration. , the first message includes a radio resource control RRC connection recovery request message or an RRC connection establishment request message;

Send first configuration information to the terminal, the first configuration information is used for the terminal to perform a target operation, and the target operation restricts the terminal from performing dual connection DC;

During the RRC connection recovery process of the terminal, context information of the terminal is obtained, and the context information includes at least one of the following: SCG capability information, DC capability information and multi-card auxiliary information.
The method of claim 13, wherein the target operation includes at least one of the following:

If the first configuration information includes SCG configuration and/or second indication information, ignore the first configuration information;

In the case where the first configuration information is carried through the RRC connection recovery message, and the first configuration information includes SCG configuration and/or second indication information, perform the configuration operation of the SCG and send the first configuration operation to the network side device. Three indication information, the third indication information is used to request the release of the SCG;

When the first configuration information includes SCG configuration and/or second indication information, and the target state of the SCG is an activated state, do not activate the SCG;

When the first configuration information is carried through an RRC connection recovery message, the first configuration information includes SCG configuration and/or second indication information, and the target state of the SCG is an active state, activate the SCG, and sends fourth indication information to the network side device, where the fourth indication information includes at least one of the following: an SCG deactivation request, an SCG release request, and fifth indication information used to indicate that the SCG capability is limited;

When the first configuration information indicates that the terminal initiates random access on the primary and secondary serving cells PSCell, the terminal determines whether to perform random access on the primary and secondary serving cells PSCell and/or whether to start the random access. Access the associated first timer;

In the case where the first configuration information includes SCG configuration and/or second indication information, the target state of the SCG is a deactivation state, and the terminal is configured to perform target measurement during SCG deactivation, determine whether to perform the describe Target measurement, the target measurement includes at least one of wireless link monitoring RLM, beam failure detection BFD and radio resource management RRM measurement;

Wherein, the second instruction information is used to instruct the terminal to restore the saved SCG configuration.
The method of claim 14, wherein when the target operation includes ignoring the first configuration information, the method further includes:

The network side device performs a fifth behavior, and the fifth behavior includes any of the following:

Receive sixth indication information from the terminal, the sixth indication information being used to indicate that the SCG configuration or the recovery of the SCG configuration was not successfully executed;

If the first configuration information is carried by the target downlink message, the network side device receives the response message of the target downlink message, and sends the response message of the target downlink message without carrying the confirmation information corresponding to the first configuration information. , determining that the terminal ignores the first configuration information.
The method of claim 14, wherein deactivating the SCG includes setting the SCG to a deactivated state or a suspended state.
The method according to claim 16, wherein the target operation includes not activating when the first configuration information includes SCG configuration and/or second indication information, and the target state of the SCG is an activated state. When using SCG, the method further includes:

The network side device receives the status information of the SCG from the terminal.
The method according to claim 14, wherein, after starting the first timer and the terminal does not initiate an SCG failure information process after the first timer times out, the method further includes:

The network side device receives a fourth message from the terminal. The fourth message is a message in the SCG failure information process initiated by the terminal. The failure type indicated by the fourth message includes at least one of the following: SCG deactivation. request, an SCG release request, seventh indication information used to indicate that the SCG capability is limited, and eighth indication information used to indicate that the target transmission capability of the terminal is switched between at least two subscriber identity cards.
The method according to claim 14, wherein, after starting the first timer and the terminal does not initiate an SCG failure information process after the first timer times out, the method further includes:

The network side device receives the status information of the SCG from the terminal.
The method according to claim 19, wherein the status information of the SCG is carried in terminal assistance information.
The method according to claim 14, wherein in the case where the terminal determines not to perform the target measurement, the method further includes:

The network side device receives a second message from the terminal, where the second message is used to request not to perform the target measurement.
The method according to claim 21, wherein after the network side device receives the second message from the terminal, the method further includes:

The network side device sends ninth instruction information to the terminal, where the ninth instruction information is used to instruct to stop the target measurement.
A dual-connection function control device, including:

The first execution module is used to execute the first behavior;

Wherein, the first act includes at least one of the following:

Send a first message to the network side device, the first message including first indication information, the first indication information being used to instruct the terminal to request at least one of not configuring the secondary cell group SCG and requesting not to restore the saved SCG configuration. , the first message includes a radio resource control RRC connection recovery request message or an RRC connection establishment request message;

In the case where the first configuration information is received, a target operation is performed, the first configuration information is used to control the SCG, and the target operation is used to restrict the terminal from performing dual connection DC.
A dual-connection function control device, including:

The second execution module is used to execute the fourth behavior;

Wherein, the fourth behavior includes at least one of the following:

Receive a first message from the terminal, the first message includes first indication information, the first indication information is used to instruct the terminal to request at least one of not configuring the secondary cell group SCG and requesting not to restore the saved SCG configuration. , the first message includes a radio resource control RRC connection recovery request message or an RRC connection establishment request message;

Send first configuration information to the terminal, the first configuration information is used for the terminal to perform a target operation, and the target operation restricts the terminal from performing dual connection DC;

During the RRC connection recovery process of the terminal, context information of the terminal is obtained, and the context information includes at least one of the following: SCG capability information, DC capability information and multi-card auxiliary information.
A terminal, including a processor and a memory, the memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, any one of claims 1 to 12 is implemented. The steps of the dual connection function control method.
A network side device, including a processor and a memory. The memory stores programs or instructions that can be run on the processor. When the program or instructions are executed by the processor, any one of claims 13 to 22 is implemented. The steps of the dual connection function control method described in the item.
A readable storage medium, which stores programs or instructions. When the program or instructions are executed by a processor, the dual connection function control method as described in any one of claims 1 to 12 is implemented, or the method is implemented The steps of the dual connection function control method according to any one of claims 13 to 22.