CN110366198B

CN110366198B - Method and terminal for detecting change result of auxiliary cell group

Info

Publication number: CN110366198B
Application number: CN201810251893.5A
Authority: CN
Inventors: 梁敬; 吴昱民; 陈力
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-03-26
Filing date: 2018-03-26
Publication date: 2021-07-23
Anticipated expiration: 2038-03-26
Also published as: WO2019184622A1; CN110366198A

Abstract

The invention provides a method and a terminal for detecting a change result of an auxiliary cell group, which solve the problem that when SCG is changed, no relevant design exists how to detect possible SCG change failure. The detection method comprises the following steps: when a secondary cell group SCG target cell change process is initiated to a target cell, a statistical value is obtained, wherein the target cell is a cell which meets SCG target cell change conditions in at least one candidate cell; and determining an SCG change result when the SCG target cell change process is initiated according to the relation between the statistic value and a preset threshold value. In the embodiment of the invention, the SCG change result when the SCG target cell change process is initiated is determined according to the relation between the statistic value and the preset threshold value, so that the terminal can accurately know whether the SCG change fails according to the SCG change result.

Description

Method and terminal for detecting change result of auxiliary cell group

Technical Field

The invention relates to the technical field of communication application, in particular to a method and a terminal for detecting a change result of an auxiliary cell group.

Background

In the 5G system, the UE adopts a Dual Connectivity (DC) architecture, where the DC architecture includes two cell groups: a Master Cell Group (MCG) corresponding to a Master Node (MN) on the network side, and a Secondary Cell Group (SCG) corresponding to a Secondary Node (SN) on the network side. The MCG includes a Primary cell (Primary cell, PCell) of a Primary cell group and a Secondary cell (Secondary cell, SCell) of the Primary cell group, and the SCG includes a Primary cell (Primary SCell, PSCell) of the Secondary cell group and a Secondary cell (Secondary cell, SCell) of the Secondary cell group, where the PCell and the PSCell may also be collectively referred to as an SpCell.

The 5G technology has started to study Conditional Handover (Conditional Handover) in which the UE does not perform Handover immediately after receiving a Handover command, but performs Handover after the conditions accompanying the Handover command are satisfied. When a Dual Connectivity (DC) architecture is adopted to change the SCG under the condition of deployment of a large number of small cells and small base stations, there is no relevant design for how to detect the SCG change failure that may occur.

Disclosure of Invention

The invention aims to provide a method and a terminal for detecting a change result of an auxiliary cell group, which are used for solving the problem that no relevant design exists on how to detect possible SCG change failure when SCG is changed.

In a first aspect, an embodiment of the present invention provides a method for detecting a change result of a secondary cell group, where the method is applied to a terminal and includes:

when a secondary cell group SCG target cell change process is initiated to a target cell, a statistical value is obtained, wherein the target cell is a cell which meets SCG target cell change conditions in at least one candidate cell;

and determining an SCG change result when the SCG target cell change process is initiated according to the relation between the statistic value and a preset threshold value.

In a second aspect, an embodiment of the present invention provides a terminal, including:

an obtaining module, configured to obtain a statistical value when initiating a secondary cell group SCG target cell change process to a target cell, where the target cell is a cell that satisfies a SCG target cell change condition in at least one candidate cell;

and the determining module is used for determining the SCG change result when the SCG target cell change process is initiated according to the relation between the statistic value and the preset threshold value.

In a third aspect, an embodiment of the present invention further provides a terminal, including: a memory, a processor and a computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method of detecting a secondary cell group change result as described above.

In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when being executed by a processor, the computer program implements the steps of the method for detecting a secondary cell group change result as described above.

The embodiment of the invention has the following beneficial effects:

in the embodiment of the invention, when the SCG target cell change process is initiated to the target cell, a statistical value is obtained; and determining an SCG change result when the SCG target cell change process is initiated according to the relation between the statistical value and a preset threshold value, so that the terminal can accurately know whether the SCG change fails according to the SCG change result.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a flowchart of a method for detecting a secondary cell group change result according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating a first interaction between a terminal and an MN, a source SN, and a destination SN according to an embodiment of the present invention;

FIG. 3 is a second interaction flow diagram of a terminal with a MN, a source SN, and a target SN in an embodiment of the present invention;

fig. 4 is a third interaction flowchart of the terminal with the MN, the source SN, and the target SN in the embodiment of the present invention;

FIG. 5 is a fourth flowchart illustrating interaction between a terminal and an MN, a source SN, and a destination SN according to an embodiment of the present invention;

fig. 6 is a block diagram of a terminal according to an embodiment of the present invention;

fig. 7 is one of the structural block diagrams of the terminal according to the embodiment of the present invention;

fig. 8 is a second block diagram of the terminal according to the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The claims and expressions used and/or described in the specification mean at least one of the objects connected.

Fig. 1 is a flowchart illustrating a method for detecting a secondary cell group change result according to an embodiment of the present invention. As shown in fig. 1, the detection method according to the embodiment of the present invention is applied to a terminal, and includes:

step 101: when a SCG target cell change process of a secondary cell group is initiated to a target cell, a statistical value is obtained, and the target cell is a cell which meets SCG target cell change conditions in at least one candidate cell.

Specifically, a timer or a timer and a counter may be started at a preset time before the SCG target cell change process is initiated to the target cell, and the statistical value may be obtained according to the started timer or the started timer and counter.

The timer may be t30x, and the counter may be N3 xx.

Step 102: and determining an SCG change result when the SCG target cell change process is initiated according to the relation between the statistic value and a preset threshold value.

In the embodiment of the invention, the SCG change result comprises SCG change failure and SCG change success, and the SCG change failure comprises single SCG change failure and final SCG change failure.

The preset threshold is pre-configured, or configured immediately, or agreed by the protocol.

For example, when the statistical value reaches a preset threshold, the SCG change result when the SCG target cell change process is initiated may be determined as the final SCG change failure.

The detection method of the embodiment of the invention obtains a statistical value when the SCG target cell change process is initiated to the target cell; and determining an SCG change result when the SCG target cell change process is initiated according to the relation between the statistical value and a preset threshold value, so that the terminal can accurately know whether the SCG change fails according to the SCG change result.

Further, before the above step 102, at least one of the following is performed:

applying first SCG change configuration information, wherein the first SCG change configuration information is SCG change configuration information meeting SCG target cell change conditions;

deleting at least one second SCG change configuration information, wherein the second SCG change configuration information is SCG change configuration information except the first SCG change configuration information in the SCG change configuration information;

the evaluation of whether the change condition in the at least one second SCG change configuration information is fulfilled is stopped.

As a first optional implementation manner, the step 101 includes:

starting a first timer at a first preset time before the SCG target cell change process is initiated to a target cell; and acquiring a first timing duration of the first timer, and taking the first timing duration as the statistic value.

The first timer may be specifically t30x, and the first preset time includes: the moment after the SCG changes the configuration information is received; or, the time after the SCG is applied to change the configuration information; or, feeding back the time after the configuration confirmation information to the base station; or, when the candidate cell is evaluated to satisfy the SCG target cell change condition, triggering the SCG target cell change process.

In this first implementation manner, the determining, by the step 102, an SCG change result when the SCG target cell change process is initiated according to the relationship between the statistical value and the preset threshold includes:

when the first timing duration reaches a first preset threshold, determining that the SCG change result is the final SCG change failure; when the first timing duration does not reach a first preset threshold and meets a preset condition, determining that the SCG change result is that SCG change is successful, and controlling the first timer to stop timing;

the first preset threshold is pre-configured, or configured immediately, or agreed by a protocol.

The preset conditions include at least one of the following conditions:

successfully accessing the target cell;

successfully receiving the physical downlink control channel PDCCH transmission scrambled by the cell radio network temporary identifier C-RNTI;

the partial measurement of the target cell system frame number SFN and radio resource allocation are successfully applied.

Further, after determining that the SCG change result is that the final SCG change fails, the method further includes:

and reporting SCG change failure information to the base station at a second preset time.

Wherein the second preset time comprises at least one of the following:

the moment after each SCG change fails;

time after SCG change fails for N times;

triggering the time after the SCG target cell fails to change;

wherein N is a positive integer and is pre-configured, or instantly configured, or agreed upon by a protocol.

The SCG change failure information includes at least one of a failure type indication, a trigger condition at the time of failure, a cell configuration of a preset cell at the time of failure, a cell identifier of the preset cell, a cell measurement result of the preset cell, and a number of SCG change failure times.

The preset cells include at least one of a target cell, a source cell, a cell in a configured SCG, a best non-serving cell for each SCG serving frequency (best non-serving cell serving frequency) and a best measuring cell on a non-serving new air interface NR frequency (best measured cells on non-serving NR frequencies).

In addition, at the time of starting or after starting the first timer, at least one of the following actions is executed:

resetting the MAC entity;

stopping the uplink transmission of the original SCG;

stopping the downlink reception of the original SCG;

recovering the SCG data bearer;

recovering SCG separation bearing;

and initiating a random access process to a main cell of the target SCG.

In the running process of the second timer, after a target main cell is detected, starting measurement of Radio Link Monitoring (RLM), and prohibiting starting of the RLM timer by adopting an RLM counter;

wherein the target primary cell comprises a primary cell of a primary cell group and a primary cell of a secondary cell group.

In the first implementation manner, the first timer is started, and the SCG change result is determined according to the relationship between the first timing duration of the first timer and the preset threshold, so that the terminal can accurately know whether SCG change fails according to the SCG change result, and report SCG change failure information to the base station after determining that the final condition switching fails.

As a second optional implementation manner, when initiating a secondary cell group SCG target cell change procedure to a target cell, the step 101 obtains a statistical value including:

starting a second timer and a counter at a first preset time before the SCG target cell change process is initiated to a target cell; and acquiring a second timing duration of the second timer and a count value of the counter, and taking at least one of the second timing duration and the count value as the statistic value.

The first preset time in the second implementation manner is the same as the first preset time in the first implementation manner, and details are not repeated here.

In this second implementation manner, if the second timing duration and the count value are taken as the statistical value, that is, the statistical value is the second timing duration and the count value, the step 102 of initiating the SCG change result when the SCG target cell change process is initiated according to the relationship between the statistical value and the preset threshold value includes:

when the second timing duration reaches a second preset threshold or the count value reaches a third preset threshold, determining that the SCG change result is the final SCG change failure;

when the second timing duration does not reach a second preset threshold, the count value does not reach a third preset threshold and a preset condition is met, determining that the SCG change result is that the SCG change is successful, and controlling the second timer to stop timing and the counter to stop counting;

the second preset threshold and the third preset threshold are pre-configured, or configured immediately, or agreed by a protocol.

In this second implementation manner, if the count value is taken as the statistical value, that is, the statistical value includes the statistical value, the determining, in step 102, an SCG change result when the SCG target cell change process is initiated according to a relationship between the statistical value and a preset threshold includes:

when the count value reaches a fourth preset threshold value, determining that the SCG change result is the final SCG change failure;

when the count value does not reach a fourth preset threshold value and meets a preset condition, determining that the SCG change result is that the SCG change is successful, and controlling the second timer to stop timing and the counter to stop counting;

wherein the fourth preset threshold is pre-configured, or is configured immediately, or is agreed by a protocol;

the preset condition comprises at least one of the following conditions:

successfully accessing the target cell;

Further, in the second implementation manner, the method further includes:

starting a third timer at a first preset time before the SCG target cell change process is initiated to the target cell; and when the third timing of the third timer reaches a fifth preset threshold, determining that the SCG change result is single SCG change failure, and restarting the SCG target cell change process to the target cell.

Further, in the second implementation manner, the method further includes:

and resetting a third timing duration of the third timer or restarting the third timer at a first preset time when the SCG target cell change process is restarted to the target cell.

Wherein, the above-mentioned count value of obtaining the counter includes:

and acquiring the count value of the counter according to the times that the third timing time of each third timer reaches a fifth preset threshold value.

Specifically, every time the third timing of the third timer reaches the fifth preset threshold, the count value of the counter is incremented by 1.

In addition, in the second implementation manner, the detection method according to the embodiment of the present invention further includes:

acquiring configuration information of a second timer and configuration information of a counter;

the configuration information of the second timer comprises that each terminal applies one second timer or one second timer applied by SCG change configuration information, or at least two second timers applied by SCG change configuration information; the configuration information of the counter is that one counter is applied to one terminal.

Further, at or after the second timer is started, at least one of the following actions is performed:

resetting the MAC entity;

stopping the uplink transmission of the original SCG;

stopping the downlink reception of the original SCG;

recovering the SCG data bearer;

recovering SCG separation bearing;

and initiating a random access process to a main cell of the target SCG.

Further, in the running process of the second timer, after the target primary cell is detected, the measurement of radio link monitoring RLM is started, and the RLM counter is adopted to prohibit the start of the RLM timer;

It should be noted that, after determining that the SCG change result is a final SCG change failure, the operation performed by the terminal in the second implementation is the same as that performed in the first implementation, and is not described herein again.

In the second implementation manner, the second timer is started or the second timer and the counter are started, and the SCG change result is determined according to the relationship between the statistical value of the started statistical device and the preset threshold, so that the terminal can accurately know whether SCG change fails according to the SCG change result, and report SCG change failure information to the base station after the SCG change failure is determined.

Further, in this embodiment of the present invention, before the step 101, the method further includes:

receiving SCG change configuration information sent by a base station, wherein the base station comprises a main base station MN or a source auxiliary base station SN; and feeding back configuration confirmation information to the base station.

The SCG change configuration information is sent to the terminal by the MN or the source SN after the MN receives the condition addition feedback information sent by the target SN; the target SN receives the conditional addition SCG request information sent by the MN and then sends the conditional addition SCG request information to the MN;

or, the SCG change configuration information is sent to the terminal by the MN after the MN receives condition addition feedback information sent by a condition change SCG request information target SN sent by a source SN; the conditional addition feedback information is sent to the MN after the target SN receives the conditional addition SCG request information sent by the MN, and the conditional addition SCG request information is sent to the target SN after the MN receives the conditional change SCG request information sent by the source SN;

or, the SCG change configuration information is sent to the terminal after the source SN receives the conditional SN change confirmation information sent by the MN; the condition SN change confirmation information is sent to the source SN after the MN receives the condition adding SCG feedback information sent by the target SN; the conditional adding SCG feedback information is sent to the MN after the target SN receives the conditional adding SCG request information sent by the MN; the condition adding SCG request information is sent to the target SN by the MN after receiving the condition changing SCG request information sent by the source SN.

In an embodiment of the present invention, the SCG target cell change procedure may be triggered by the MN or the SN, and the configuration information of SCG change may be sent to the UE by the MN or the SN.

The first embodiment is as follows: the MN triggers a condition-based SCG change procedure and is configured by the MCG.

As shown in fig. 2, the specific implementation process includes:

step S11: the MN sends conditional add SCG request information to one or more target SNs.

Step S12: the target SN adds SCG feedback information to the MN feedback condition.

Step S13: the MN sends conditional SCG release indication information to the source SN.

Step S14: and the source SN feeds back the SCG release confirmation information of the condition to the MN according to the indication information.

In the embodiment of the present invention, steps S13 and S14 are optional steps, and the step S15 may be skipped directly after step S12 is executed.

Step S15: and the MN sends SCG change configuration information to the UE.

Here, the UE may start a timer after receiving the SCG change configuration information.

Step S16: the UE feeds back configuration confirmation information to the MN.

Here, after the UE feeds back the configuration confirmation information to the network side, a timer may be started.

Step S17: and the UE continuously evaluates and judges whether one or more target cells meet the condition of triggering the change of the target cell according to the SCG change configuration information.

Step S18: and according to the configuration confirmation information, the MN sends condition change SCG confirmation information to the target SN.

The condition is the same as the "placement confirmation information" in step S16, with respect to the content of the SCG confirmation information.

Step S19: according to the UE evaluation in step S17, if the target cell meets the "condition for triggering to change the target cell", the UE triggers the SCG target cell change process.

In addition, the UE may notify the network side that the condition satisfied by the UE changes SCG related information, such as notifying at least one of the MN or the source SN, specifically, the UE may notify the MN through MCG report, and notify the source SN through SCG.

In the process of executing steps S15 to S19, the UE starts one or more timers (e.g., t30x) for detecting SCG change failure or zero, one or more counters (e.g., N3xx) for detecting SCG change failure, and the starting time of the timers and counters may be as follows:

the time when the SCG changed configuration information is received (corresponding to step 5);

the moment after the SCG is applied to change the configuration information;

feeding back the time after the configuration confirmation information to the base station (corresponding to step 6);

and when the candidate cell meets the SCG target cell change condition after evaluation, triggering the SCG target cell change process.

For the above-mentioned timer, a single case of starting may be one of the following configurations, and a case of starting multiple timers may include but is not limited to any combination of the following configurations, and for each type of timer, multiple may also be started:

1. the timer is configured to be used for one UE, the timer can be used for detecting the SCG failure finally, and the timing is not stopped when the SCG change fails once; the method can also be used for detecting single SCG change failure, and after the timer is overtime and the single SCG change failure occurs, a new SCG change process is initiated, and the timer is reset.

2. The timer is configured for one command, that is, each SCG change configuration information has an independent timer, and the timing duration of the timers of different SCG change configuration information may be the same or different.

3. The timer is configured for multiple SCG change configuration information, i.e. several SCG change configuration information share one timer, for example, the timer may be used for detection of a single SCG change failure, initiate a new SCG change procedure after the timer expires and a single conditional switch failure occurs, and reset the timer.

The configuration for the counter described above is for one UE, i.e. one counter is applied per UE. The counter can be used for detecting the SCG failure finally, and the counter value is +1 when a single SCG change fails.

In addition, at or after the start of the timer (e.g., t30x) for detecting SCG change failure, the UE may have at least one of the following behaviors:

resetting the MAC entity;

stopping the uplink transmission of the original SCG;

stopping the downlink reception of the original SCG;

recovering the SCG data bearer;

recovering SCG separation bearing;

and initiating a random access process to a main cell of the target SCG.

When a timer (such as t30x) for SCG change failure runs, after a target primary cell is detected, starting measurement of Radio Link Monitoring (RLM), and inhibiting a timer for starting the RLM by adopting an RLM counter;

The RLM counter may include an asynchronous counter (e.g., N313), and the RLM timer may be t 313.

Further, when a secondary cell group SCG target cell change process is initiated to a target cell, the UE acquires the timing duration of the timer, and for a single SCG change process, if the SCG change is successful before the timeout of the timer for the single SCG change (the timing duration does not reach a preset threshold), the timer is controlled to stop timing; and if the timer is overtime (the timing duration reaches a preset threshold), determining that the SCG change fails.

Wherein, when the UE judges that at least one of the following is satisfied, it is determined that the SCG change is successful:

successfully accessing the target cell;

Further, if a single SCG change failure occurs, the UE selects a configuration (e.g., another target cell configuration) from the target cell configurations that satisfy the trigger condition to initiate the SCG change procedure again, and the timer for the single SCG change is reset (if a timer is configured for each new single SCG change procedure) or a timer is restarted (if a timer is independently configured for the new SCG change procedure).

For the timer or counter used for detection of the final SCG change failure:

1. if the timer for detecting the SCG change failure is started and only started, the SCG change process is successfully completed before the timer is overtime, the timer stops timing, the SCG change is not successfully completed before the timer is overtime, and the SCG change failure is triggered after the timer is overtime.

2. If the counter for the final SCG change failure detection is started and only started, the SCG change process is successfully completed before it reaches the maximum value, the counter stops counting.

3. If the timer and the counter for the final SCG change failure detection are started at the same time, and the SCG change process is successfully completed before the timer is overtime and the counter reaches the maximum value, the timer and the counter are stopped. If the SCG change process is not successfully completed all the time, the SCG change failure is triggered after the timer is overtime or the counter reaches the maximum value.

The timer or counter maximum value may be pre-configured, instant configured or protocol specified.

Step S20: if single SCG change failure or final SCG change failure occurs, SCG failure information is sent to the MN.

When the SCG fails to change, the UE needs to initiate an SCG failure process and report the occurrence of SCG failure to the network side, where the reporting time may be one or a combination of the following cases:

the moment after each SCG change fails;

time after SCG change fails for N times;

triggering the time after the SCG target cell fails to change;

wherein, N is a positive integer, and the value of N can be configured in advance, or can be configured immediately or specified by a protocol.

In the first embodiment, the MN triggers the SCG change process based on the condition, and sends the SCG change configuration information to the terminal through the MCG, so that the terminal determines the SCG change result through the timer or the counter, and further, the terminal can accurately know whether the SCG change fails according to the SCG change result.

Example two: the MN triggers a condition-based SCG change procedure and is configured by the SCG.

As shown in fig. 3, the specific implementation flow includes:

step S21: the MN sends conditional add SCG request information to one or more target SNs.

Step S22: the target SN adds SCG feedback information to the MN feedback condition.

Step S23: the MN sends conditional SCG release indication information to the source SN.

Step S24: and the source SN feeds back the SCG release confirmation information of the condition to the MN according to the indication information.

In the embodiment of the present invention, steps S23 and S24 are optional steps, and the step S25 may be skipped directly after step S22 is executed.

Step S25: the source SN sends condition change SCG information to the UE.

Step S26: the UE feeds back configuration confirmation information to the source SN.

Step S27: and the UE continuously evaluates and judges whether one or more target cells meet the condition of triggering the change of the target cell according to the SCG change configuration information.

Step S281: and according to the configuration confirmation information, the source SN sends the condition change SCG confirmation information to the MN.

Step S282: in response to the confirmation information of step S281, the MN sends condition change SCG confirmation information to the target SN.

Step S29: according to the UE evaluation in step S27, if the target cell meets the "condition for triggering to change the target cell", the UE triggers the SCG target cell change process.

Step S30: if single SCG change failure or final SCG change failure occurs, SCG failure information is sent to the MN.

This implementation differs from the above described implementation in that: the steps S25, S26, S281, and S282 are the same as those of the above implementation, and are not described again here.

In the second embodiment, the MN triggers the SCG change process based on the condition, and sends the SCG change configuration information to the terminal through the SCG, so that the terminal determines the SCG change result through the timer or the counter, and further, the terminal can accurately know whether the SCG change fails according to the SCG change result.

Example three: the SN triggers the condition-based SCG change process and is configured by the MCG.

As shown in fig. 4, the specific implementation flow includes:

step S31: the source SN sends the condition change SCG request information to the MN.

Step S32: the MN sends conditional add SCG request information to one or more target SNs.

Step S33: the target SN adds SCG feedback information to the MN feedback condition.

Step S34: and the MN sends SCG change configuration information to the UE.

Step S35: the UE feeds back configuration confirmation information to the MN.

Step S36: and the UE continuously evaluates and judges whether one or more target cells meet the condition of triggering the change of the target cell according to the SCG change configuration information.

Step S37: the MN sends a condition SN change confirmation message to the source SN.

The contents of the confirmation information are the same as those of the configuration confirmation information in step S35.

Step S38: and according to the condition SN change confirmation information, the MN sends condition change SCG confirmation information to the target SN.

Step S39: according to the UE evaluation in step S36, if the target cell meets the "condition for triggering to change the target cell", the UE triggers the SCG target cell change process.

Step S40: if single SCG change failure or final SCG change failure occurs, SCG failure information is sent to the MN.

In the third embodiment, the SN triggers the SCG change process based on the condition, and sends the SCG change configuration information to the terminal through the MCG, so that the terminal determines the SCG change result through the timer or the counter, and further, the terminal can accurately know whether the SCG change fails according to the SCG change result.

It should be noted that, compared with the first embodiment, the third embodiment is only different in the main body for triggering the SCG change process, and the rest of the interior is the same as the first embodiment, and is not described again here.

Example four: the SN triggers the condition-based SCG change process and is configured by the SCG.

As shown in fig. 5, the specific implementation flow includes:

step S41: the source SN sends the condition change SCG request information to the MN.

Step S42: the MN sends conditional add SCG request information to one or more target SNs.

Step S43: the target SN adds SCG feedback information to the MN feedback condition.

Step S44: the MN sends a condition SN change confirmation message to the source SN.

Step S45: and the source SN sends SCG change configuration information to the UE.

Step S46: the UE feeds back configuration confirmation information to the source MN.

Step S47: and the UE continuously evaluates and judges whether one or more target cells meet the condition of triggering the change of the target cell according to the SCG change configuration information.

Step S481: and according to the configuration confirmation information, the source SN sends the condition change SCG confirmation information to the MN.

Step S482: in response to the confirmation information of step S281, the MN sends condition change SCG confirmation information to the target SN.

Step S49: according to the UE evaluation in step S47, if the target cell meets the "condition for triggering to change the target cell", the UE triggers the SCG target cell change process.

Step S50: if single SCG change failure or final SCG change failure occurs, SCG failure information is sent to the MN.

In the fourth embodiment, the SN triggers an SCG change process based on the condition, and sends SCG change configuration information to the terminal through the SCG, so that the terminal determines an SCG change result through a timer or a counter, and further, the terminal can accurately know whether SCG change fails according to the SCG change result.

It should be noted that, compared with the second embodiment, the fourth embodiment is only different in the main body for triggering the SCG change process, and the rest of the interior is the same as the first embodiment, and is not described again here.

Fig. 6 is a schematic module diagram of a terminal according to an embodiment of the present invention, and as shown in fig. 6, an embodiment of the present invention further provides a terminal 600, including:

an obtaining module 601, configured to obtain a statistical value when initiating a secondary cell group SCG target cell change process to a target cell, where the target cell is a cell that satisfies a SCG target cell change condition in at least one candidate cell;

a determining module 602, configured to determine, according to a relationship between the statistical value and a preset threshold, an SCG change result when the SCG target cell change process is initiated.

In the terminal of the embodiment of the present invention, the obtaining module includes:

the first control submodule is used for starting a first timer at a first preset time before the SCG target cell change process is initiated to the target cell;

and the first acquisition submodule is used for acquiring the first timing duration of the first timer and taking the first timing duration as the statistical value.

In the terminal of the embodiment of the present invention, the determining module includes:

the first determining submodule is used for determining that the SCG change result is the final SCG change failure when the first timing duration reaches a first preset threshold;

the second determining submodule is used for determining that the SCG change result is SCG change success when the first timing duration does not reach a first preset threshold and meets a preset condition, and controlling the first timer to stop timing;

wherein the first preset threshold is pre-configured, or is configured immediately, or is agreed by a protocol;

the preset condition comprises at least one of the following conditions:

successfully accessing the target cell;

the second control submodule is used for starting a second timer and a counter at a first preset time before the SCG target cell change process is initiated to the target cell;

and the second acquisition submodule is used for acquiring a second timing duration of the second timer and a count value of the counter, and taking at least one of the second timing duration and the count value as the statistic value.

In the terminal of the embodiment of the present invention, the statistical values are the second timing duration and the count value;

the determining module comprises:

a third determining submodule, configured to determine that the SCG change result is a final SCG change failure when the second timing duration reaches a second preset threshold or the count value reaches a third preset threshold;

a fourth determining submodule, configured to determine that the SCG change result is a successful SCG change when the second timing duration does not reach a second preset threshold, the count value does not reach a third preset threshold, and a preset condition is met, and control the second timer to stop timing and the counter to stop counting;

the second preset threshold and the third preset threshold are pre-configured, or configured immediately, or agreed by a protocol;

the preset condition comprises at least one of the following conditions:

successfully accessing the target cell;

In the terminal of the embodiment of the present invention, the statistical value is the count value;

the determining module comprises:

a fifth determining submodule, configured to determine that the SCG change result is a final SCG change failure when the count value reaches a fourth preset threshold;

a sixth determining submodule, configured to determine that the SCG change result is a successful SCG change when the count value does not reach a fourth preset threshold and meets a preset condition, and control the second timer to stop timing and the counter to stop counting;

the preset condition comprises at least one of the following conditions:

successfully accessing the target cell;

In the terminal of the embodiment of the present invention, the obtaining module further includes:

the third control sub-module is used for starting a third timer at a first preset time before the SCG target cell change process is initiated to the target cell;

and a seventh determining submodule, configured to determine that the SCG change result is a single SCG change failure when the third timing length of the third timer reaches a fifth preset threshold, and reinitiate an SCG target cell change process to the target cell.

In the terminal of the embodiment of the present invention, the seventh determining submodule is further configured to reset a third timing duration of the third timer or restart one of the third timers at a first preset time when the SCG target cell change process is restarted to the target cell.

and the third obtaining submodule is used for obtaining the count value of the counter according to the times that the third timing length of each third timer reaches a fifth preset threshold value.

the fourth obtaining submodule is used for obtaining the configuration information of the second timer and the configuration information of the counter;

the configuration information of the second timer comprises that each terminal applies one second timer or one second timer applied by SCG change configuration information, or at least two second timers applied by SCG change configuration information;

the configuration information of the counter is that one counter is applied to one terminal.

In the terminal of the embodiment of the present invention, the first preset time includes:

the moment after the SCG changes the configuration information is received;

or, the time after the SCG is applied to change the configuration information;

or, feeding back the time after the configuration confirmation information to the base station;

or, when the candidate cell is evaluated to satisfy the SCG target cell change condition, triggering the SCG target cell change process.

The terminal of the embodiment of the invention further comprises:

and the reporting module is used for reporting SCG change failure information to the base station at a second preset moment.

In the terminal of the embodiment of the present invention, the second preset time includes at least one of the following:

the moment after each SCG change fails;

time after SCG change fails for N times;

triggering the time after the SCG target cell fails to change;

In the terminal of the embodiment of the present invention, the SCG change failure information includes at least one of a failure type indication, a trigger condition when failing, a cell configuration of a preset cell when failing, a cell identifier of the preset cell, a cell measurement result of the preset cell, and a number of SCG change failures.

In the terminal of the embodiment of the present invention, the preset cell includes at least one of a target cell, a source cell, a cell in a configured SCG, an optimal non-serving cell of each SCG serving frequency, and an optimal measurement cell on a non-serving new air interface NR frequency.

The terminal of the embodiment of the invention further comprises:

a first processing module, configured to, when or after the second timer is started, perform at least one of the following actions:

resetting the MAC entity;

stopping the uplink transmission of the original SCG;

stopping the downlink reception of the original SCG;

recovering the SCG data bearer;

recovering SCG separation bearing;

and initiating a random access process to a main cell of the target SCG.

The terminal of the embodiment of the invention further comprises:

a second processing module, configured to start measurement of radio link monitoring RLM after detecting the target primary cell in an operation process of the second timer, and prohibit starting of the RLM timer by using an RLM counter;

The terminal of the embodiment of the invention further comprises: a third processing module, configured to execute at least one of the following before determining, according to a relationship between the statistical value and a preset threshold, an SCG change result when initiating an SCG target cell change process:

The terminal of the embodiment of the invention further comprises:

a receiving module, configured to receive SCG change configuration information sent by a base station before acquiring a statistic when initiating a secondary cell group SCG target cell change process to a target cell, where the base station includes a master base station MN or a source secondary base station SN;

and the feedback module is used for feeding back configuration confirmation information to the base station.

In the terminal of the embodiment of the present invention, the SCG change configuration information is sent to the terminal by the MN or the source SN after the MN receives the condition addition feedback information sent by the target SN; the target SN receives the conditional addition SCG request information sent by the MN and then sends the conditional addition SCG request information to the MN;

The terminal of the embodiment of the invention obtains a statistical value when initiating the SCG target cell change process to the target cell; and determining an SCG change result when the SCG target cell change process is initiated according to the relation between the statistical value and a preset threshold value, so that the terminal can accurately know whether the SCG change fails according to the SCG change result.

An embodiment of the present invention further provides a terminal, including: the detection method comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein when the computer program is executed by the processor, each process in the detection method embodiment of the auxiliary cell group change result is realized, the same technical effect can be achieved, and in order to avoid repetition, the description is omitted here.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process in the above-mentioned method for detecting a change result of an auxiliary cell group, and can achieve the same technical effect, and is not described here again to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

In order to better achieve the above object, as shown in fig. 7, an embodiment of the present invention further provides a terminal, which includes a memory 720, a processor 700, a transceiver 710, a user interface 730, a bus interface, and a computer program stored on the memory 720 and operable on the processor 700, wherein the processor 700 is configured to read the program in the memory 720 and execute the following processes:

Where in fig. 7, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 700 and memory represented by memory 720. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 710 may be a number of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. The user interface 730 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 in performing operations.

Optionally, the processor 700 reads the program in the memory 720, and is further configured to perform:

starting a first timer at a first preset time before the SCG target cell change process is initiated to a target cell;

and acquiring a first timing duration of the first timer, and taking the first timing duration as the statistic value.

when the first timing duration reaches a first preset threshold, determining that the SCG change result is the final SCG change failure;

when the first timing duration does not reach a first preset threshold and meets a preset condition, determining that the SCG change result is that SCG change is successful, and controlling the first timer to stop timing;

the preset condition comprises at least one of the following conditions:

successfully accessing the target cell;

starting a second timer and a counter at a first preset time before the SCG target cell change process is initiated to a target cell;

and acquiring a second timing duration of the second timer and a count value of the counter, and taking at least one of the second timing duration and the count value as the statistic value.

Optionally, the statistical value is the second timing length and the count value;

the processor 700 reads the program in the memory 720, and is further configured to perform:

the preset condition comprises at least one of the following conditions:

successfully accessing the target cell;

Optionally, the statistical value is the count value;

the preset condition comprises at least one of the following conditions:

successfully accessing the target cell;

starting a third timer at a first preset time before the SCG target cell change process is initiated to the target cell;

and when the third timing of the third timer reaches a fifth preset threshold, determining that the SCG change result is single SCG change failure, and restarting the SCG target cell change process to the target cell.

Optionally, the first preset time includes:

the moment after the SCG changes the configuration information is received;

or, the time after the SCG is applied to change the configuration information;

Optionally, the second preset time includes at least one of the following:

the moment after each SCG change fails;

time after SCG change fails for N times;

triggering the time after the SCG target cell fails to change;

Optionally, the SCG change failure information includes at least one of a failure type indication, a trigger condition when the SCG change failure occurs, a cell configuration of a preset cell when the SCG change failure occurs, a cell identifier of the preset cell, a cell measurement result of the preset cell, and a number of SCG change failure times.

Optionally, the preset cell includes at least one of a target cell, a source cell, a cell in a configured SCG, an optimal non-serving cell of each SCG serving frequency, and an optimal measurement cell on a non-serving new air interface NR frequency.

at or after the second timer is started, performing at least one of the following actions:

resetting the MAC entity;

stopping the uplink transmission of the original SCG;

stopping the downlink reception of the original SCG;

recovering the SCG data bearer;

recovering SCG separation bearing;

and initiating a random access process to a main cell of the target SCG.

Optionally, the processor 700 reads the program in the memory 720, and is further configured to perform at least one of the following:

receiving SCG change configuration information sent by a base station, wherein the base station comprises a main base station MN or a source auxiliary base station SN;

and feeding back configuration confirmation information to the base station.

Optionally, the SCG change configuration information is sent to the terminal by the MN or the source SN after the MN receives the condition addition feedback information sent by the target SN; the target SN receives the conditional addition SCG request information sent by the MN and then sends the conditional addition SCG request information to the MN;

Fig. 8 is a schematic diagram of a hardware structure of a terminal for implementing various embodiments of the present invention, where the terminal 800 includes, but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, a processor 810, and a power supply 811. Those skilled in the art will appreciate that the terminal configuration shown in fig. 8 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The processor 810 is configured to obtain a statistical value when initiating a secondary cell group SCG target cell change procedure to a target cell, where the target cell is a cell that satisfies a SCG target cell change condition in at least one candidate cell; and determining an SCG change result when the SCG target cell change process is initiated according to the relation between the statistic value and a preset threshold value.

According to the technical scheme of the embodiment of the invention, when the SCG target cell change process is initiated to the target cell, a statistical value is obtained; and determining an SCG change result when the SCG target cell change process is initiated according to the relation between the statistical value and a preset threshold value, so that the terminal can accurately know whether the SCG change fails according to the SCG change result.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 801 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 810; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 801 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. Further, the radio frequency unit 801 can also communicate with a network and other devices through a wireless communication system.

The terminal provides wireless broadband internet access to the user through the network module 802, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.

The audio output unit 803 may convert audio data received by the radio frequency unit 801 or the network module 802 or stored in the memory 809 into an audio signal and output as sound. Also, the audio output unit 803 may also provide audio output related to a specific function performed by the terminal 800 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 803 includes a speaker, a buzzer, a receiver, and the like.

The input unit 804 is used for receiving an audio or video signal. The input Unit 804 may include a Graphics Processing Unit (GPU) 8041 and a microphone 8042, and the Graphics processor 8041 processes image data of a still picture or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 806. The image frames processed by the graphics processor 8041 may be stored in the memory 809 (or other storage medium) or transmitted via the radio frequency unit 801 or the network module 802. The microphone 8042 can receive sound, and can process such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 801 in case of a phone call mode.

The terminal 800 also includes at least one sensor 805, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 8061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 8061 and/or the backlight when the terminal 800 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 805 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 806 is used to display information input by the user or information provided to the user. The Display unit 806 may include a Display panel 8061, and the Display panel 8061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 807 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 807 includes a touch panel 8071 and other input devices 8072. The touch panel 8071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 8071 (e.g., operations by a user on or near the touch panel 8071 using a finger, a stylus, or any other suitable object or accessory). The touch panel 8071 may include two portions of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 810, receives a command from the processor 810, and executes the command. In addition, the touch panel 8071 can be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 8071, the user input unit 807 can include other input devices 8072. In particular, other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

Further, the touch panel 8071 can be overlaid on the display panel 8061, and when the touch panel 8071 detects a touch operation on or near the touch panel 8071, the touch operation is transmitted to the processor 810 to determine the type of the touch event, and then the processor 810 provides a corresponding visual output on the display panel 8061 according to the type of the touch event. Although in fig. 8, the touch panel 8071 and the display panel 8061 are two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 8071 and the display panel 8061 may be integrated to implement the input and output functions of the terminal, which is not limited herein.

The interface unit 808 is an interface for connecting an external device to the terminal 800. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 808 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the terminal 800 or may be used to transmit data between the terminal 800 and external devices.

The memory 809 may be used to store software programs as well as various data. The memory 809 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 809 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 810 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 809 and calling data stored in the memory 809, thereby integrally monitoring the terminal. Processor 810 may include one or more processing units; preferably, the processor 810 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 810.

The terminal 800 may also include a power supply 811 (e.g., a battery) for powering the various components, and preferably, the power supply 811 may be logically coupled to the processor 810 via a power management system to provide management of charging, discharging, and power consumption via the power management system.

In addition, the terminal 800 includes some functional modules that are not shown, and are not described in detail herein.

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 an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for detecting a change result of an auxiliary cell group is applied to a terminal, and is characterized by comprising the following steps:

determining an SCG change result when an SCG target cell change process is initiated according to the relation between the statistic value and a preset threshold value, wherein the SCG change result is SCG change failure or SCG change success, and the SCG change failure comprises single SCG change failure and final SCG change failure;

before determining the SCG change result when the SCG target cell change process is initiated according to the relation between the statistic value and a preset threshold value, executing at least one of the following steps:

stopping evaluation on whether the change condition in the at least one second SCG change configuration information is satisfied;

after the determination that the SCG change result is that the final SCG change fails, the method further includes:

reporting SCG change failure information to the base station at a second preset moment;

the second preset time comprises at least one of the following:

the moment after each SCG change fails;

time after SCG change fails for N times;

triggering the time after the SCG target cell fails to change;

2. The detecting method according to claim 1, wherein said step of obtaining a statistic value when initiating a secondary cell group SCG target cell change procedure to a target cell comprises:

3. The detecting method according to claim 2, wherein the step of determining the SCG change result when the SCG target cell change procedure is initiated according to the relationship between the statistical value and the preset threshold value comprises:

the preset condition comprises at least one of the following conditions:

successfully accessing the target cell;

4. The detecting method according to claim 1, wherein said step of obtaining a statistic value when initiating a secondary cell group SCG target cell change procedure to a target cell comprises:

5. The detection method according to claim 4, wherein the statistical value is the second timing length and the count value;

the step of determining the SCG change result when the SCG target cell change process is initiated according to the relationship between the statistical value and the preset threshold value includes:

the preset condition comprises at least one of the following conditions:

successfully accessing the target cell;

6. The detection method according to claim 4, wherein the statistical value is the count value;

the preset condition comprises at least one of the following conditions:

successfully accessing the target cell;

7. The detection method according to claim 4, further comprising:

8. The detection method according to claim 7, further comprising:

9. The detection method according to claim 8, wherein obtaining the count value of the counter comprises:

10. The detection method according to claim 4, further comprising:

11. The detection method according to claim 2 or 4, wherein the first preset time comprises:

the moment after the SCG changes the configuration information is received;

or, the time after the SCG is applied to change the configuration information;

12. The detection method according to claim 1, wherein the SCG change failure information includes at least one of a failure type indication, a trigger condition at the time of failure, a cell configuration of a pre-set cell at the time of failure, a cell identifier of a pre-set cell, a cell measurement result of a pre-set cell, and a number of SCG change failure times.

13. The detecting method according to claim 12, wherein the preset cells include at least one of a target cell, a source cell, a cell in a configured SCG, a best non-serving cell of each SCG serving frequency, and a best measurement cell on a non-serving new air interface NR frequency.

14. The detection method according to claim 4, further comprising:

resetting the MAC entity;

stopping the uplink transmission of the original SCG;

stopping the downlink reception of the original SCG;

recovering the SCG data bearer;

recovering SCG separation bearing;

and initiating a random access process to a main cell of the target SCG.

15. The detection method according to claim 4, further comprising:

16. The detecting method of claim 1, wherein before obtaining a statistic when initiating a secondary cell group SCG target cell change procedure to a target cell, the method further comprises:

and feeding back configuration confirmation information to the base station.

17. The detection method according to claim 16,

18. A terminal, comprising:

a determining module, configured to determine, according to a relationship between the statistical value and a preset threshold, an SCG change result when an SCG target cell change process is initiated, where the SCG change result is an SCG change failure or an SCG change success, and the SCG change failure includes a single SCG change failure and a final SCG change failure;

a third processing module, configured to execute at least one of the following before determining, according to a relationship between the statistical value and a preset threshold, an SCG change result when initiating an SCG target cell change process:

the reporting module is used for reporting SCG change failure information to the base station at a second preset moment;

the second preset time comprises at least one of the following:

the moment after each SCG change fails;

time after SCG change fails for N times;

triggering the time after the SCG target cell fails to change;

19. A terminal, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method of detecting a secondary cell group change result as claimed in any of claims 1 to 17.

20. A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the method for detecting a secondary cell group change result according to any one of claims 1 to 17.