CN116939886A

CN116939886A - Dual-connection function control method and device, terminal and network side equipment

Info

Publication number: CN116939886A
Application number: CN202210383968.1A
Authority: CN
Inventors: 蒲文娟
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-04-12
Filing date: 2022-04-12
Publication date: 2023-10-24
Also published as: WO2023198100A1

Abstract

The application discloses a double-connection function control method, a device, a terminal and network side equipment, belonging to the field of communication, wherein the double-connection function control method of the embodiment of the application comprises the following steps: the terminal executes a first behavior; wherein the first behavior comprises at least one of: sending a first message to network side equipment, wherein the first message comprises first indication information, the first indication information is used for indicating the terminal to request at least one of SCG (secondary cell group) configuration without configuration and SCG configuration without restoration preservation, and the first message comprises a Radio Resource Control (RRC) connection restoration request message or an RRC connection establishment request message; and executing a target operation under the condition that first configuration information is received, wherein the first configuration information is used for controlling SCG, and the target operation is used for limiting the terminal to perform dual-connection DC.

Description

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

Technical Field

The application belongs to the technical field of communication, and particularly relates to a dual-connection function control method, a device, a terminal and network side equipment.

Background

There are currently widely two-card terminals or multi-card terminals on the market. Taking a dual card terminal as an example, the dual card terminal may be classified into a single-transmit single-receive, a single-transmit double-receive, and a dual-transmit double-receive terminal according to whether the terminal supports simultaneous transmission or reception in a network of two cards, such as a universal subscriber identity (Universal Subscriber Identity Module, USIM) card. For a dual-transmitting dual-receiving terminal, in order to support parallel transmission of dual cards, and simultaneously improve the resource utilization rate and reduce the terminal cost, future terminal manufacturers are more prone to enabling more Zhang Kafu to use part of hardware/radio frequency capability, namely part of hardware/capability of the terminal can be dynamically switched among a plurality of cards according to actual needs.

With the progressive deployment of dual connectivity technology, dual card terminals may support dual connectivity (Dual connectivity, DC) on either or both cards. When one card is in a radio resource control IDLE (Radio Resource Control IDLE) state or an RRC INACTIVE (INACTIVE) state, the other card can operate in a DC mode for parallel transmission with the MN and SN when the other card is in an RRC connected state. However, when the dual cards are in a connected state, to support parallel transmission of the dual cards, each card cannot perform parallel transmission of the DC mode because the DC mode requires that the terminal can perform parallel transmission with a Master Node (MN) and a Slave Node (SN).

Currently, when a card (card a) is in a connected state, a card B initiates an RRC connection recovery procedure in a RRC INACTIVE state, and the network side device may configure SCG for the card B or instruct the terminal to recover the stored SCG configuration in an RRC connection recovery message. In this case, the card B is configured with the SCG, which may cause that the SCG of the card B is not able to work normally, or the card a is disconnected, affecting the terminal performance and wasting network resources. Therefore, in the prior art, there is a problem that communication reliability is low when one card of the two-card or multi-card terminal resumes the RRC connection.

Disclosure of Invention

The embodiment of the application provides a dual-connection function control method, a dual-connection function control device, a dual-connection function control terminal and network side equipment, which can improve the reliability of communication when one card in a dual-card or multi-card terminal recovers RRC connection.

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

the terminal executes a first behavior;

wherein the first behavior comprises at least one of:

sending a first message to network side equipment, wherein the first message comprises first indication information, the first indication information is used for indicating the terminal to request at least one of SCG (secondary cell group) configuration without configuration and SCG configuration without restoration preservation, and the first message comprises a Radio Resource Control (RRC) connection restoration request message or an RRC connection establishment request message;

and executing a target operation under the condition that first configuration information is received, wherein the first configuration information is used for controlling SCG, and the target operation is used for limiting the terminal to perform dual-connection DC.

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

the network side equipment executes a fourth action;

wherein the fourth behavior comprises at least one of:

receiving a first message from a terminal, wherein the first message comprises first indication information, the first indication information is used for indicating the terminal to request at least one of SCG (secondary cell group) configuration without configuration and SCG configuration without restoration preservation, and the first message comprises a Radio Resource Control (RRC) connection restoration request message or an RRC connection establishment request message;

Sending first configuration information to the terminal, wherein the first configuration information is used for the terminal to execute target operation, and the target operation limits the terminal to perform double-connection DC;

in the RRC connection recovery process of the terminal, acquiring the context information of the terminal, wherein the context information comprises at least one of the following items: SCG capability information, DC capability information, and multi-card auxiliary information.

In a third aspect, there is provided a dual connectivity function control apparatus, comprising:

the first execution module is used for executing the first behavior;

wherein the first behavior comprises at least one of:

transmitting a first message to network side equipment, wherein the first message comprises first indication information, the first indication information is used for indicating a terminal to request at least one of SCG (secondary cell group) configuration without configuration and SCG configuration without restoration preservation, and the first message comprises a Radio Resource Control (RRC) connection restoration request message or an RRC connection establishment request message;

In a fourth aspect, there is provided a dual connectivity function control apparatus including:

The second execution module is used for executing a fourth action;

wherein the fourth behavior comprises at least one of:

In a fifth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.

In a sixth aspect, a terminal is provided, including a processor and a communication interface, where the processor is configured to perform a first action;

Wherein the first behavior comprises at least one of:

In a seventh aspect, a network side device is provided, comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the second aspect.

An eighth aspect provides a network side device, including a processor and a communication interface, where the communication interface is configured to perform a fourth action;

wherein the fourth behavior comprises at least one of:

In a ninth aspect, there is provided a communication system comprising: a terminal operable to perform the steps of the dual connectivity function control method as described in the first aspect, and a network side device operable to perform the steps of the dual connectivity function control method as described in the second aspect.

In a tenth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect or performs the steps of the method according to the second aspect.

In an eleventh aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a program or instructions, implementing the steps of the method as described in the first aspect, or implementing the steps of the method as described in the second aspect.

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

In the embodiment of the application, a first behavior is executed through a terminal; wherein the first behavior comprises at least one of: sending a first message to network side equipment, wherein the first message comprises first indication information, the first indication information is used for indicating the terminal to request at least one of SCG (secondary cell group) configuration without configuration and SCG configuration without restoration preservation, and the first message comprises a Radio Resource Control (RRC) connection restoration request message or an RRC connection establishment request message; and executing a target operation under the condition that first configuration information is received, wherein the first configuration information is used for controlling SCG, and the target operation is used for limiting the terminal to perform dual-connection DC. Therefore, after one user identification card of the terminal enters a connection state, the DC function can be limited, so that the influence on the current service of the other user identification card can be avoided, and the reliability of communication is improved.

Drawings

FIG. 1 is a schematic diagram of a network architecture to which embodiments of the present application are applicable;

FIG. 2 is a flow chart of a dual connectivity control method provided by an embodiment of the present application;

FIG. 3 is a flow chart of another dual connectivity control method provided by an embodiment of the present application;

fig. 4 is a block diagram of a dual connectivity control apparatus according to an embodiment of the present application;

FIG. 5 is a block diagram of another dual connectivity control apparatus according to an embodiment of the present application;

fig. 6 is a block diagram of a communication device according to an embodiment of the present application;

fig. 7 is a block diagram of a terminal according to an embodiment of the present application;

fig. 8 is a block diagram of a network side device according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It should be noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE-Advanced (LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency division multiple access)Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (SC-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. Access network device 12 may include a base station, a WLAN access point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only a base station in the NR system is described as an example, and the specific type of the base station is not limited.

For ease of understanding, some of the following descriptions are directed to embodiments of the present application:

1. multi-card terminal (Multi-USIM)

A multi-card terminal refers to a terminal in which more than one SIM card is installed. Taking a dual-card terminal as an example, the dual-card terminal may be classified into a single-transmission single-reception terminal, a single-transmission dual-reception terminal, and a dual-transmission dual-reception terminal according to whether the terminal supports simultaneous transmission or reception in a network of two cards.

Wherein, the single-sending single-receiving terminal refers to: the terminal can only alternate the transmission and reception of information in the network of two cards in a time-division manner.

The single-shot double-receiving terminal refers to: the terminal can only transmit uplink through the network of two cards alternately in a time division mode, but supports downlink reception through the network of two cards at the same time.

The dual-transmitting dual-receiving terminal refers to: the terminal supports uplink transmission and downlink reception in the network of two cards simultaneously.

2. DC and carrier aggregation (Carrier Aggregation, CA).

DC refers to the resource providing two network nodes for a terminal, one of which is called MN and the other one is called SN. At each network side node, CA may also be used, i.e. a series of serving cells controlled by the network node may be configured for the terminal, which may form a cell group (cell group). MN-controlled cell group is primary cell group (Master Cell Group, MCG) and SN-controlled secondary cell group (Secondary Cell Group, SCG). Each Cell group contains a Special Cell (SpCell) and a series of Secondary cells (SCell). The special Cell is called a Primary Cell (PCell) in the MCG, and the special Cell is called a Primary secondary Cell (Primary Secondary Cell, PSCell) in the SCG.

3. SCG suspended (suspend).

SCG suspend generally refers to one of the following meanings:

suspending transmissions on the SCG;

suspending transmission of all signaling radio bearers (Signalling Radio Bearer, SRB) and data radio bearers (Data Radio Bearer, DRB) on the SCG;

suspending transmission of PDCP and SCG RLC bearer of SCG.

When the SCG fails (e.g., radio link failure, random access failure, etc.), the UE may initiate SCG failure information a procedure in which the terminal suspends the SCG and generates an SCG failure information (SCGFailureInformation) message that is sent to the network-side device through the MCG that is not in the suspended state. The SCGfailureInformation message may carry a failure type (failure type) for indicating a cause of the SCG failure. The network side can take reasonable measures based on SCGfailureinformation, such as reconfiguration of SCG, deletion of SCG, and the like.

4. SCG deactivated state.

When the SCG data volume is low or the terminal is energy-saving or the terminal is overheated, the network side equipment can control the SCG in a deactivated state, and compared with the SCG release, the SCG release method is beneficial to quickly starting data transmission on the SCG after the problems of SCG data occurrence or terminal overheating are relieved.

During the SCG deactivation state, the behavior of the terminal includes at least: all SCG scells are in a deactivated state, the terminal does not monitor the physical downlink control channel (Physical downlink control channel, PDCCH) of the PSCell, does not transmit an uplink shared channel (Uplink Shared Channel, UL-SCH), and does not transmit a sounding reference signal (Sounding Reference Signal, SRS). If the network side device configures radio link monitoring (Radio Link Monitoring, RLM)/beam failure detection (Beam Failure Detection, BFD) to be performed during SCG deactivation, the terminal performs RLM and BFD of PSCell during SCG deactivation.

5. Transient capabilities are limited (Temporary Capability restriction).

Currently, for a dual-transmit dual-receive multi-card terminal, each card may use a separate hardware module to support simultaneous receiving and transmitting. However, this method has problems such as low hardware utilization efficiency and high cost. For this reason, it is studied how to support dynamic capability splitting between networks of two cards for a two-card terminal in the case of a two-card shared part hardware module. For example, when card a is in a connected state and card B is in a disconnected state, the capabilities of the terminal are occupied by card a. If the card B is about to establish or restore the RRC connection, it is necessary to cut a part of the capability of the card a to the card B, and at this time, the terminal needs to indicate a short capability limited state to the network a (i.e. a part of the capability is about to be used for other cards), otherwise, the terminal may lose the data of the network a or cause a problem of wasting network resources.

The terminal indicates to the network side device a short capability limitation, which may be a state where some wireless capabilities of the terminal are not supported for a short time, or may be a state where the terminal does not change wireless capabilities but is implemented by requesting or indicating to the network side that some functions/resources are disabled. For example, when the dual card terminal is configured with DC in the network a in the connected state, the SCG is in the active state. If the terminal is to initiate RRC connection establishment at network B at this time, the multi-card terminal may request suspension/deactivation of SCG at network a.

It should be understood that the types of cards installed and used on the terminal include, but are not limited to, the data cards and voice cards described above, which are exemplified for convenience of description in the embodiments of the present application. Assuming that one card of the dual-send dual-receive dual-card terminal is a data card, one card is a voice card, a typical case is that the data card reports its own static capability to the network side device as supporting DC, and the voice card reports its own static capability to the network side as supporting only single connection. When the voice card is in a connection state, the data card initiates an RRC connection recovery flow in an RRC inactive state, and the network side device may configure SCG for the data card in an RRC connection recovery message or instruct the terminal to recover the stored SCG configuration. In this case, the data card is configured with the SCG, which may cause that the SCG of the data card cannot work normally or the voice card is disconnected, so that the terminal performance is affected and the network resources are wasted. For this purpose, the dual connectivity control method of the present application is proposed.

The following describes in detail the dual connectivity control method provided by the embodiment of the present application through some embodiments and application scenarios thereof with reference to the accompanying drawings.

Referring to fig. 2, an embodiment of the present application provides a dual connectivity function control method, as shown in fig. 2, including:

step 201, the terminal executes a first behavior;

wherein the first behavior comprises at least one of:

In the embodiment of the present application, the terminal may perform the first action in a non-connected state, where the non-connected state includes an RRC idle state and an RRC inactive (inactive) state. When the terminal is in idle state, the first message is an RRC connection establishment request message, and when the terminal is in inactive state, the first message is an RRC connection restoration request message. It should be understood that the terminal being in the disconnected state may be understood as a certain SIM card of the terminal being in the disconnected state. For example, when the voice card is in a connected state to perform voice service, the data card needs to enter the connected state, and at this time, the terminal will perform the first action through the data card.

The first indication information may be carried or indicated by a connection cause value field in an RRC connection establishment request message or a restoration cause value field in an RRC connection restoration request message, where requesting to not configure SCG and requesting not to restore saved SCG configuration may also be understood as requesting to not configure DC, requesting to release DC configuration, requesting to release SCG configuration. In this way, the terminal indicates, through the first indication information in the first message, that the terminal requests at least one of not configuring the SCG and requesting not to restore the stored SCG configuration, so that the network side device does not configure the SCG for the data card of the terminal or does not restore the stored SCG configuration, and further, the data card of the terminal does not work in the DC mode after entering the connection state. Therefore, the influence on the current business of the voice card can be avoided, and the reliability of communication is improved. In addition, the terminal may instruct the network side device that the terminal does not support DC or does not support SCG operation for restoration and storage or that the SCG capability is limited in the RRC connection establishment request message or the RRC connection restoration request message, which may achieve the above-described effects.

Alternatively, limiting the terminals to a dual-connection DC may be understood as not performing at least part of the DC sub-functions in a dual-card condition compared to the normal operation mode of the DC. For example, in some embodiments, the terminal may be restricted from dual connectivity DC by not performing SCG configuration, not resuming SCG configuration, releasing SCG configuration, not activating SCG, not performing random access on PSCell, not performing part of the operations that need to be performed when SCG activation is not performed, not performing part of the operations that need to be performed during SCG deactivation, etc. Therefore, after the data card of the terminal enters the connection state through the second operation, the terminal can avoid the influence on the current service of the voice card, reduce the influence on the DC function of the data card and improve the reliability of communication.

It should be noted that, the first configuration information may indicate a target state of the SCG, where the target state is a state to be entered by the SCG when the RRC connection recovery message is received. The terminal and the network side device behave differently according to different target states, and the following description is given for different target states:

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

Alternatively, it is possible that downlink data of the SCG arrives, considering that the network side device directly activates the SCG when the RRC connection is restored. If the SCG of the data card is not available (occupied by the voice card) at this time, the terminal should trigger reporting of SCG capability limitation information immediately. In this way, the network side device can take reasonable measures as soon as possible, for example, send downlink data of the SCG through the MCG, change bearer (i.e. change uplink and downlink bearer), deactivate the SCG or release the SCG, etc.

Optionally, if the RRC connection recovery message carries the SCG configuration, the terminal triggers the random access (Random Access Channel, RACH) of the PSCell according to the existing procedure. Considering that one transceiver of the terminal is being used for a voice card, the terminal may choose to keep the voice card connected and forego performing RACH on SCG. Since RACH is not executed, after time-out, T304 will trigger SCG failure information to be reported, indicating that the failure is due to synchronous reconfiguration failure. The SCG failure cause is not meaningful to the network.

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

Alternatively, if the network is configured with RLM/BFD, the UE needs to perform RLM and BFD during SCG deactivation. But 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 measurements of PSCell.

Therefore, the embodiment of the application confirms the specific behavior of the terminal through the target operation so as to ensure the reliability of communication. Optionally, in some embodiments, the target operation includes at least one of:

operation 1, in the case that the first configuration information includes SCG configuration and/or second indication information, ignoring the first configuration information;

an operation 2, wherein when the first configuration information is carried through an RRC connection restoration message and the first configuration information includes SCG configuration and/or second indication information, a configuration operation of the SCG is executed, and third indication information is sent to a network side device, where the third indication information is used for requesting to release the SCG;

operation 3, when the first configuration information includes SCG configuration and/or second indication information and the target state of the SCG is an activated state, not activating the SCG;

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

Operation 5, in the case that the first configuration information indicates the terminal to initiate random access on the primary and secondary serving cells PSCell, the terminal judges whether to perform random access on the primary and secondary serving cells PSCell and/or whether to start a first timer associated with the random access;

operation 6 of determining whether to perform a target measurement including at least one of radio link monitoring RLM, beam failure detection BFD, and radio resource management RRM measurement, in a case where the first configuration information includes SCG configuration and/or second indication information, a target state of the SCG is a deactivated state, and the terminal is configured to perform the target measurement during SCG deactivation;

the second indication information is used for indicating the terminal to restore the stored SCG configuration.

In the embodiment of the present application, the SCG configuration carried in the first configuration information may include all (full) configurations for configuring the SCG, or may be delta (delta) configurations for configuring the SCG, where, in the case that the SCG configuration carried in the first configuration information is delta configuration, the terminal may execute the configuration operation of the SCG based on the SCG configuration carried in the first configuration information and the pre-stored SCG configuration.

For the above operation 1, the terminal may choose to ignore the first configuration information when the SCG cannot be used, and further may notify the network side device, so as to avoid that the terminal triggers some unnecessary flows based on the SCG configuration, which results in resource waste. For example, in the case where the target operation includes ignoring the first configuration information, the method further includes:

the terminal performs a second action, the second action comprising any one of:

transmitting sixth indication information, wherein the sixth indication information is used for indicating that the SCG configuration or the recovery of the SCG configuration is not 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;

RRC connection reestablishment is performed.

For the above operation 2, the third indication information may be carried through an RRC connection resume complete message, and because the SCG is requested to be released from the network side device, a corresponding operation may be performed when corresponding indication information of the network side device is received. For example, upon receiving a release command, SCG may be released; upon receiving the suspend command, setting the SCG status to suspend may be performed; upon receipt of the deactivation command, the state of the SCG may be set to deactivated. The configuration operation of the SCG comprises at least one of a day sword of the SCG, reconfiguration of the SCG, change of the SCG, recovery of the SCG configuration and the like.

For operation 3 above, deactivating the SCG comprises: the SCG is set to a deactivated state or a suspended state. The specific state may have a protocol agreement or a network side device pre-indication. Optionally, in some embodiments, after the first configuration information includes SCG configuration and/or second indication information, and the target state of the SCG is an active state, the method further includes:

and the terminal reports the state information of the SCG to network side equipment.

In the embodiment of the application, the terminal can set the SCG to a proper state by itself when the SCG cannot be activated, and inform the network side equipment so as to avoid triggering some unnecessary flows based on SCG configuration by the terminal.

For the above operation 4, the fourth indication information may be carried through an RRC connection resume complete message, and since the SCG is requested to be released from the network side device, a corresponding operation may be performed when the corresponding indication information of the network side device is received. For example, upon receiving a release command, the SCG may be released.

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

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

the terminal does not support DC in a preset time period;

the SCG capabilities of the terminal are limited.

The switching of the target transmission capability of the terminal between at least two subscriber identity cards may be understood as the terminal performing a multi-card operation, or may be understood as the transmission operation performed by at least two subscriber identity cards by the same set of hardware or radio frequency. Wherein the first timer may be referred to as timer T304.

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

Optionally, in some embodiments, in case of starting the first timer, the method further comprises:

during operation of the first timer, the terminal performs a third action, the third action comprising at least one of:

determining whether to perform the random access;

stopping the first timer upon receipt of a deactivation command of the SCG;

Restarting the first timer when the reconfiguration information of the first timer is received;

and stopping the first timer when the network side equipment instructs the terminal to stop the first timer.

In the embodiment of the application, during the operation of the first timer, the terminal can initiate random access on the PSCell according to whether random access in a pending (pending) state exists.

if the random access is not successfully executed or suspended under the condition that the first timer is overtime, the terminal initiates an SCG failure information flow or the terminal does not initiate an SCG failure information flow;

the failure type indicated in the SCG failure information flow initiated by the terminal comprises at least one of the following: an SCG deactivation request, an SCG release request, seventh indication information for indicating that the SCG capability is limited, and eighth indication information for indicating that a target transmission capability of the terminal is switched between at least two subscriber identity cards.

In the embodiment of the present application, under the condition that the terminal does not initiate the SCG failure information flow, the method further includes:

And the terminal reports the state information of the SCG to the network equipment.

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

and the terminal reports the state information of the SCG to the network side equipment through terminal auxiliary information.

Because the state information of the SCG is reported to the network side equipment through the auxiliary information, the network side can be prevented from triggering other additional flows when the terminal is not accessed to the SCG, unnecessary signaling flow cost and resource waste are avoided, and the reliability of communication is further ensured.

For the above-described operation 6, the terminal may determine whether to perform the target measurement based on the first condition, for example, not to perform the target measurement in the case where the first condition is satisfied, and to perform the target measurement in the case where the first condition is not satisfied. In the embodiment of the application, the terminal does not execute the target measurement when the first condition is satisfied, so that the network side can be prevented from wasting network side resources by still transmitting the measurement reference signal when the terminal cannot execute the measurement. Therefore, the interruption of voice service of the voice card caused by the measurement of the data card can be avoided, and the reliability of communication is further improved.

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

and the terminal sends a second message to the network side equipment, wherein the second message is used for requesting not to execute the target measurement.

In the embodiment of the present application, the second message may be carried through RRC connection recovery, after the network side device receives the second message, the specific behavior of the terminal may be indicated, before the terminal sends the second message, the terminal may execute the target measurement, and after receiving the indication of the network side device, the specific behavior of the target measurement is determined based on the indication. For example, in some implementations, after the terminal sends the second message to the network side device, the method further includes:

and stopping the target measurement by the terminal in the case that the terminal receives ninth indication information for indicating to stop the target measurement.

In the embodiment of the application, the terminal can decide whether to trigger the random access on the PSCell according to the resource occupation condition of multiple cards, and can avoid the overtime triggering of the SCG failure information reporting flow by not executing the random access on the PSCell and not starting the first timer.

For a better understanding of the present application, the following description is made by way of some specific examples.

Optionally, in some embodiments, the terminal RRC connection resume request message indicates that the terminal does not want to be configured with DC. The method specifically comprises the following steps:

step 1, a terminal is in RRC INACTIVE state;

and step 2, the terminal initiates an RRC connection recovery flow. For example, a downlink paging message is received, or an uplink service occurs;

the cause value in step 2 indicates at least one of:

request not to configure SCG;

requesting that no DC be configured;

the request does not restore the saved SCG configuration.

Optionally, in case the first condition is met, the cause value in step 2 indicates at least one of: request not to configure SCG; requesting that no DC be configured; the request does not restore the saved SCG configuration. The first condition includes at least one of:

multi-card operation of the terminal;

the terminal temporarily does not support DC;

the SCG capabilities of the terminal are limited.

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

Optionally, in some embodiments, if the RRC connection restore message includes a configuration SCG, the terminal ignores the SCG configuration. The method specifically comprises the following steps:

Step 1, a terminal is in RRC INACTIVE state;

and step 2, the terminal sends an RRC connection recovery request message. For example, a downlink paging message is received, or an uplink service occurs;

and step 3, the terminal receives the RRC connection recovery message. If the message carries SCG configuration (full configuration or delta configuration), the terminal judges whether to ignore the SCG configuration. Alternatively, in case the first condition is met, the terminal ignores the SCG configuration. Further, when the SCG target state is the active state, the terminal ignores the SCG configuration.

Step 4, in case of ignoring the SCG configuration, the terminal indicates at least one of the following in the RRC connection resume complete message:

the SCG configuration is not successfully executed;

in the case of the SN reconfiguration message of the RRC connection restore message, a Response message (e.g., nr-SCG-Response) of the SN reconfiguration message does not appear to implicitly indicate that SCG configuration is not performed.

In this embodiment, the terminal may choose to ignore the SCG configuration when the SCG cannot be used, and notify the network side device, so that the terminal may be prevented from triggering some existing flows based on the SCG configuration.

Optionally, in some embodiments, if the RRC connection restore message configures the SCG and the SCG target state is an active state, the terminal does not perform SCG activation. The method specifically comprises the following steps:

Step 1, a terminal is in RRC INACTIVE state;

and step 3, the terminal receives the RRC connection recovery message. If the message carries SCG configuration and the target SCG state is the activated state, the terminal judges whether to activate the SCG. Alternatively, in case the first condition is fulfilled, the terminal decides not to activate SCG. In case that the SCG is not activated, the terminal sets the SCG to a deactivated state, or a suspended state, or releases the SCG.

And 4, the terminal sends an RRC connection recovery completion message, wherein the SCG is indicated to the network side equipment to be in a deactivated state, a suspended state or SCG release.

Optionally, the terminal determines which of SCG deactivation, SCG suspension and SCG release is executed according to the protocol convention, or an instruction of the network side device or implementation of the terminal, under the condition that the terminal determines that the SCG is not activated.

In this embodiment, the terminal may set the SCG to a suitable state by itself when the SCG cannot be activated, and notify the network side device to avoid triggering other flows based on SCG configuration.

Alternatively, in some embodiments, if the RRC connection resume message configures the SCG and the SCG target state is an active state, the terminal activates the SCG and requests deactivation or release of the SCG in the RRC connection resume complete message. The method specifically comprises the following steps:

Step 1, a terminal is in RRC INACTIVE state;

and step 3, the terminal receives the RRC connection recovery message. If the RRC connection recovery message carries SCG configuration and the SCG target state is an activated state, the terminal activates SCG;

and step 4, the terminal sends an RRC connection recovery completion message, and if the first condition is met, the RRC connection recovery completion message carries an SCG deactivation request or an SCG release request or indicates that the SCG is not available.

And step 5, if the terminal receives the SCG release command, executing SCG release operation. And if the terminal receives the SCG deactivation command, executing the SCG deactivation command. If T304 of the PSCell is running when the SCG deactivation command is received, the terminal stops T304.

Optionally, in some embodiments, if the RRC connection recovery message configures the SCG and the SCG target state is an active state, the terminal activates the SCG, does not execute RACH, does not start T304, and reports state information of the SCG. The method specifically comprises the following steps:

step 1, a terminal is in RRC INACTIVE state;

and step 4, the terminal judges whether to execute random access on the PSCell. Alternatively, in case the first condition is met, no random access on the PSCell is performed. In case of not performing random access on the PSCell, the terminal does not start T304.

Step 5, optionally, the terminal indicates to the network side device that SCG is not available, or requests SCG to deactivate, or requests SCG to release. For example, it may be indicated to the network side device in an RRC connection resume complete message.

In this embodiment, the terminal may not trigger random access on the PSCell at this time according to the resource occupation situation of multiple cards, and avoid triggering the SCG failure information reporting procedure due to the timeout of the random access timer T304.

step 1, a terminal is in RRC INACTIVE state;

and step 4, the terminal judges whether to execute random access on the PSCell. Alternatively, in case the first condition is met, no random access on the PSCell is performed. Without performing random access on the PSCell, the terminal starts T304.

Step 5, during the operation of T304, the terminal determines whether random access can be performed. For example, in the case where the first condition is not satisfied, it is determined that random access can be performed. And when judging that the random access can be executed and the random access in the pending state exists, initiating the random access on the PScell.

Step 6, if the T304 timeout terminal has not initiated the random access on the PSCell, the terminal performs one of the following operations:

and the SCG failure information flow is not initiated, and optionally, the state information of the SCG is reported to the network side equipment. For example, initiate a UAI flow to indicate status information of the SCG;

an SCG failure information flow is initiated in which the failure type indicates that SCG is unavailable, or requests to deactivate SCG, or requests to release SCG, or multi-card reasons.

Optionally, in some embodiments, if the RRC connection restore message configures the SCG and the target SCG state is a deactivated state, the terminal indicates to the network side device that RLM/BFD during SCG deactivation is not supported. The method specifically comprises the following steps:

step 1, a terminal is in RRC INACTIVE state;

and step 3, the terminal receives the RRC connection recovery message. If the SCG configuration is carried in the message and the target SCG state is the deactivation state, the terminal judges whether to deactivate the SCG. In the case where it is judged that the deactivation of the SCG is not performed, the terminal releases the SCG.

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

And step 5, the terminal requests the network side equipment to enable the two measurements under the condition that the RLM and BFD are not executed.

Alternatively, the terminal may perform RLM/BFD before requesting, and stop RLM/BFD if the network side device indicates that RLM/BFD is not performed.

Optionally, in some embodiments, the terminal RRC connection setup request message indicates that the terminal does not want to be configured with DC. The method specifically comprises the following steps:

step 1, a terminal is in an RRC idle state;

and step 2, the terminal initiates an RRC connection establishment flow. For example, a downlink paging message is received, or an uplink service occurs;

the cause value in step 2 indicates at least one of:

request not to configure SCG;

requesting that no DC be configured;

the request does not restore the saved SCG configuration.

multi-card operation of the terminal;

the terminal temporarily does not support DC;

the SCG capabilities of the terminal are limited.

Referring to fig. 3, the embodiment of the present application further provides a dual connectivity function control method, as shown in fig. 3, including:

step 301, the network side device executes a fourth action;

wherein the fourth behavior comprises at least one of:

In the embodiment of the present application, the above-mentioned obtaining of the context information of the terminal may be understood AS that the network side device obtains the context information of the terminal from other network devices, for example, obtains the context information of the terminal from an anchor base station or a core network, and the context information may be understood AS the context (context) of an Access Stratum (AS).

Because the network side equipment acquires the context information of the terminal, whether the SCG configuration is carried or not and/or whether the stored SCG configuration is restored or not is determined 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, an appropriate target state is set for the SCG. Therefore, after one user identification card of the terminal enters a connection state, the DC function can be limited, so that the influence on the current service of the other user identification card can be avoided, and the reliability of communication is improved. For example, in some embodiments, assume that a terminal in state RRC INACTIVE initiates an RRC connection resume request message to a serving base station; the serving base station may perform the following procedure:

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

step 2, the service base station obtains AS context of the terminal from the anchor base station, wherein the AS context comprises 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;

and step 3, the service base station sends an RRC connection restoration message to the terminal, wherein whether SCG configuration is carried or not is determined and/or whether the terminal restores the stored SCG configuration is indicated 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, an appropriate SCG target state is set.

Optionally, the target operation includes at least one of:

ignoring the first configuration information if the first configuration information includes SCG configuration and/or second indication information;

executing configuration operation of the SCG and sending third indication information to network side equipment under the condition that the first configuration information is carried by RRC connection recovery information and the first configuration information comprises SCG configuration and/or second indication information, wherein the third indication information is used for requesting to release the SCG;

if the first configuration information comprises SCG configuration and/or second indication information and the target state of the SCG is an activated state, not activating the SCG;

Activating the SCG and sending fourth indication information to network side equipment when the first configuration information is carried through an RRC connection recovery message, wherein the first configuration information comprises SCG configuration and/or second indication information, and the target state of the SCG is an activated state, and the fourth indication information comprises at least one of the following items: an SCG deactivation request, an SCG release request, and fifth indication information for indicating that the SCG capability is limited;

under the condition that the first configuration information indicates the terminal to initiate random access on a primary serving cell and a secondary serving cell, the terminal judges whether to execute random access on the primary serving cell and the secondary serving cell and/or whether to start a first timer associated with the random access;

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

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

the network side device executes a fifth action, where the fifth action includes any one of the following:

receiving sixth indication information from the terminal, wherein the sixth indication information is used for indicating that the SCG configuration or the recovery of the SCG configuration is not successfully executed;

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

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

Optionally, said deactivating the SCG comprises: the SCG is set to a deactivated state or a suspended state. Optionally, in other embodiments, deactivating the SCG may further include setting the SCG to a third state, such as to a sleep state.

Optionally, when the first configuration information includes an SCG configuration and/or second indication information and the target state of the SCG is an active state, the method further includes:

The network side equipment receives the state information of the SCG from the terminal.

Optionally, when the first timer is started and the first timer expires, the terminal does not initiate the SCG failure information flow, the method further includes:

the network side equipment receives a fourth message from the terminal, wherein the fourth message is a message in an SCG failure information flow initiated by the terminal, and the failure type indicated by the fourth message comprises at least one of the following: an SCG deactivation request, an SCG release request, seventh indication information for indicating that the SCG capability is limited, and eighth indication information for indicating that a target transmission capability of the terminal is switched between at least two subscriber identity cards.

Optionally, the state information of the SCG is carried in terminal auxiliary information.

Optionally, in a 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, wherein the second message is used for requesting not to execute the target measurement.

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

and the network side equipment sends ninth indication information to the terminal, wherein the ninth indication information is used for indicating to stop the target measurement.

According to the dual connectivity control method provided by the embodiment of the application, the execution main body can be a dual connectivity control device. In the embodiment of the present application, a method for executing a dual connectivity function control device by using a dual connectivity function control device as an example is described.

Referring to fig. 4, an embodiment of the present application provides a dual connectivity function control apparatus, as shown in fig. 4, the dual connectivity function control apparatus 400 includes:

a first execution module 401 for executing a first behavior;

wherein the first behavior comprises at least one of:

Optionally, the target operation includes at least one of:

Optionally, the first execution module 401 is further configured to: performing a second action, the second action comprising any of:

RRC connection reestablishment is performed.

Optionally, said deactivating the SCG comprises: the SCG is set to a deactivated state or a suspended state.

Optionally, the dual connectivity function control apparatus 400 further includes:

and the first sending module is used for reporting the state information of the SCG to network side equipment.

Optionally, in case of starting the first timer, the first execution module 401 is further configured to execute, during operation of the first timer, a third action by the terminal, where the third action includes at least one of:

determining whether to perform the random access;

stopping the first timer upon receipt of a deactivation command of the SCG;

Optionally, in the case of starting the first timer, the first execution module 401 is further configured to, if the random access is not successfully executed or suspended, initiate an SCG failure information flow by the terminal or not initiate an SCG failure information flow by the terminal if the first timer expires;

and the first sending module is used for reporting the state information of the SCG to the network side equipment under the condition that the terminal does not initiate the SCG failure information flow.

Optionally, the first sending module is specifically configured to: and reporting the state information of the SCG to the network equipment through terminal auxiliary information.

and the first sending module is used for sending a second message to the network side equipment under the condition that the terminal determines not to execute the target measurement, wherein the second message is used for requesting not to execute the target measurement.

Optionally, the first execution module 401 is further configured to stop the target measurement if the terminal receives ninth instruction information for instructing to stop the target measurement.

Optionally, the first execution module 401 is specifically configured to: in case the first condition is met, the terminal performs a first behavior;

wherein the first condition includes at least one of:

the terminal does not support DC in a preset time period;

the SCG capabilities of the terminal are limited.

Referring to fig. 5, an embodiment of the present application provides a dual connectivity function control apparatus, as shown in fig. 5, the dual connectivity function control apparatus 500 includes:

a second execution module 501, configured to execute a fourth action;

wherein the fourth behavior comprises at least one of:

Optionally, the target operation includes at least one of:

Optionally, when the first configuration information includes SCG configuration and/or second indication information and the target state of the SCG is an active state, the dual connectivity function control device 500 further includes:

and the receiving module is used for receiving the state information of the SCG from the terminal.

Optionally, the dual connectivity function control device 500 further includes:

the receiving module is configured to receive a fourth message from the terminal when the first timer is started and the first timer is overtime and the terminal does not initiate an SCG failure information flow, where the fourth message is a message in the SCG failure information flow initiated by the terminal, and the failure type indicated by the fourth message includes at least one of the following: an SCG deactivation request, an SCG release request, seventh indication information for indicating that the SCG capability is limited, and eighth indication information for indicating that a target transmission capability of the terminal is switched between at least two subscriber identity cards.

Optionally, the dual connectivity function control device 500 further includes:

And the receiving module is used for receiving the state information of the SCG from the terminal under the condition that the terminal does not initiate the SCG failure information flow after the first timer is started and the first timer is overtime.

Optionally, the dual connectivity function control device 500 further includes:

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

Optionally, the dual connectivity function control device 500 further includes:

and the second sending module is used for sending ninth indication information to the terminal, wherein the ninth indication information is used for indicating to stop the target measurement.

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

The dual connectivity function control device provided in the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 2 to 3, and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.

Optionally, as shown in fig. 6, the embodiment of the present application further provides a communication device 600, including a processor 601 and a memory 602, where the memory 602 stores a program or an instruction that can be executed on the processor 601, and the program or the instruction implements each step of the above-mentioned dual connectivity function control method embodiment when executed by the processor 601, and the steps can achieve the same technical effects, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the processor is used for executing the first behavior; wherein the first behavior comprises at least one of: sending a first message to network side equipment, wherein the first message comprises first indication information, the first indication information is used for indicating the terminal to request at least one of SCG (secondary cell group) configuration without configuration and SCG configuration without restoration preservation, and the first message comprises a Radio Resource Control (RRC) connection restoration request message or an RRC connection establishment request message; and executing a target operation under the condition that first configuration information is received, wherein the first configuration information is used for controlling SCG, and the target operation is used for limiting the terminal to perform dual-connection DC. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 7 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 700 includes, but is not limited to: at least some of the components of the radio frequency unit 701, the network module 702, the audio output unit 703, the input unit 704, the sensor 705, the display unit 706, the user input unit 707, the interface unit 708, the memory 709, and the processor 710.

Those skilled in the art will appreciate that the terminal 700 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 710 via a power management system so as to perform functions such as managing charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 7 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 704 may include a graphics processing unit (Graphics Processing Unit, GPU) 7041 and a microphone 7042, with the graphics processor 7041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 706 may include a display panel 7061, and the display panel 7061 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 at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also referred to as a 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, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

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

The memory 709 may be used to store software programs or instructions and various data. The memory 709 may mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 709 may include volatile memory or nonvolatile memory, or the memory 709 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 709 in embodiments of the application includes, but is not limited to, these and any other suitable types of memory.

Processor 710 may include one or more processing units; optionally, processor 710 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, and the like, and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 710.

Wherein the processor 710 is configured to perform a first behavior;

wherein the first behavior comprises at least one of:

The embodiment of the application also provides network side equipment, which comprises a processor and a communication interface, wherein the processor is used for executing a fourth action; wherein the fourth behavior comprises at least one of: receiving a first message from a terminal, wherein the first message comprises first indication information, the first indication information is used for indicating the terminal to request at least one of SCG (secondary cell group) configuration without configuration and SCG configuration without restoration preservation, and the first message comprises a Radio Resource Control (RRC) connection restoration request message or an RRC connection establishment request message; sending first configuration information to the terminal, wherein the first configuration information is used for the terminal to execute target operation, and the target operation limits the terminal to perform double-connection DC; in the RRC connection recovery process of the terminal, acquiring the context information of the terminal, wherein the context information comprises at least one of the following items: SCG capability information, DC capability information, and multi-card auxiliary information. The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides network side equipment. 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. The antenna 801 is connected to a radio frequency device 802. In the uplink direction, the radio frequency device 802 receives information via the antenna 801, and transmits the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes information to be transmitted, and transmits the processed information to the radio frequency device 802, and the radio frequency device 802 processes the received information and transmits the processed information through the antenna 801.

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

The baseband device 803 may, for example, comprise at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 8, where one chip, for example, a baseband processor, is connected to the memory 805 through a bus interface, so as to invoke a program in the memory 805 to perform the network device operation shown in the above method embodiment.

The network side device may also include a network interface 806, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 800 of the embodiment of the present application further includes: instructions or programs stored in the memory 805 and executable on the processor 804, the processor 804 invokes the instructions or programs in the memory 805 to perform the methods performed by the modules shown in fig. 5 and achieve the same technical effects, and are not described herein in detail to avoid repetition.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above-mentioned dual connectivity function control method embodiment, and can achieve the same technical effects, and in order to avoid repetition, the description is omitted here.

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

The embodiment of the application further provides a chip, the chip comprises a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running programs or instructions, the processes of the above-mentioned dual-connection function control method embodiment can be realized, the same technical effects can be achieved, and the repetition is avoided, and the description is omitted here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product stored in a storage medium, where the computer program/program product is executed by at least one processor to implement each process of the above-mentioned dual connectivity function control method embodiment, and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.

The embodiment of the application also provides a communication system, which comprises: the terminal is configured to execute the processes of the embodiments of the terminal-side method shown in fig. 2 and described above, and the network-side device is configured to execute the processes of the embodiments of the network-side method shown in fig. 3 and described above, so that the same technical effects can be achieved, and for avoiding repetition, a detailed description is omitted.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods 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.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. A dual connectivity function control method, comprising:

the terminal executes a first behavior;

wherein the first behavior comprises at least one of:

2. The method of claim 1, wherein the target operation comprises at least one of:

3. The method of claim 2, wherein, in the case where the target operation includes ignoring the first configuration information, the method further comprises:

the terminal performs a second action, the second action comprising any one of:

RRC connection reestablishment is performed.

4. The method of claim 2, wherein the deactivating the SCG comprises: the SCG is set to a deactivated state or a suspended state.

5. The method of 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 active state, the method further comprises, after not activating the SCG:

6. The method according to claim 2, wherein in case of starting the first timer, the method further comprises:

determining whether to perform the random access;

stopping the first timer upon receipt of a deactivation command of the SCG;

7. The method according to claim 2, wherein in case of starting the first timer, the method further comprises:

8. The method of claim 7, wherein in the case where the terminal does not initiate SCG failure information flow, the method further comprises:

9. The method of claim 8, wherein the reporting, by the terminal, the status information of the SCG to the network-side device comprises:

10. The method according to claim 2, wherein in case the terminal determines not to perform the target measurement, the method further comprises:

11. The method according to claim 10, wherein after the terminal sends the second message to the network side device, the method further comprises:

12. The method according to any of claims 1 to 11, wherein the terminal performing a first action comprises:

In case the first condition is met, the terminal performs a first behavior;

wherein the first condition includes at least one of:

the terminal does not support DC in a preset time period;

the SCG capabilities of the terminal are limited.

13. A dual connectivity function control method, comprising:

the network side equipment executes a fourth action;

wherein the fourth behavior comprises at least one of:

14. The method of claim 13, wherein the target operation comprises at least one of:

15. The method of claim 14, wherein, in the case where the target operation includes ignoring the first configuration information, the method further comprises:

16. The method of claim 14, wherein the deactivating the SCG comprises: the SCG is set to a deactivated state or a suspended state.

17. The method of claim 16, wherein the target operation comprises, when the first configuration information comprises an SCG configuration and/or second indication information and the target state of the SCG is an active state, not activating the SCG, the method further comprising:

18. The method of claim 14, wherein when the first timer is started and the first timer expires, the terminal does not initiate the SCG failure information flow, the method further comprising:

19. The method of claim 14, wherein when the first timer is started and the first timer expires, the terminal does not initiate the SCG failure information flow, the method further comprising:

20. The method of claim 19, wherein the state information of the SCG is carried in terminal assistance information.

21. The method of claim 14, wherein in the event that the terminal determines not to perform the target measurement, the method further comprises:

22. The method according to claim 21, wherein after the network side device receives the second message from the terminal, the method further comprises:

23. A dual connectivity function control apparatus, comprising:

the first execution module is used for executing the first behavior;

Wherein the first behavior comprises at least one of:

24. A dual connectivity function control apparatus, comprising:

the second execution module is used for executing a fourth action;

wherein the fourth behavior comprises at least one of:

25. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the dual connectivity function control method of any one of claims 1 to 12.

26. A network side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the dual connectivity function control method of any of claims 13 to 22.

27. A readable storage medium, characterized in that a program or an instruction is stored on the readable storage medium, which when executed by a processor, implements the dual connectivity function control method according to any one of claims 1 to 12, or the steps of the dual connectivity function control method according to any one of claims 13 to 22.