WO2023051447A1 - 主小区组mcg恢复方法、装置、终端和可读存储介质 - Google Patents

主小区组mcg恢复方法、装置、终端和可读存储介质 Download PDF

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Publication number
WO2023051447A1
WO2023051447A1 PCT/CN2022/121265 CN2022121265W WO2023051447A1 WO 2023051447 A1 WO2023051447 A1 WO 2023051447A1 CN 2022121265 W CN2022121265 W CN 2022121265W WO 2023051447 A1 WO2023051447 A1 WO 2023051447A1
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Prior art keywords
scg
terminal
mcg
cell group
scgs
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PCT/CN2022/121265
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English (en)
French (fr)
Inventor
蒲文娟
杨晓东
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维沃移动通信有限公司
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Publication of WO2023051447A1 publication Critical patent/WO2023051447A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/08Reselecting an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • H04W36/0069Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • H04W36/00698Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink using different RATs

Definitions

  • the present application belongs to the technical field of communication, and specifically relates to a method, device, terminal and readable storage medium for recovering an MCG of a primary cell group.
  • resources of two network nodes can be configured for a user terminal (User Equipment, UE).
  • UE User Equipment
  • One of the network nodes is called a master node (MN), and the other is called a The cell group controlled by the MN is the Master Cell Group (MCG), and the cell group controlled by the SN is the Secondary Cell Group (SCG).
  • MCG Master Cell Group
  • SCG Secondary Cell Group
  • the UE when the UE is in the radio resource control (Radio Resource Control, RRC) connected state (CONNECTED), the UE will perform radio link monitoring (Radio Link Monitoring, RLM) based on the reference signal and the reference signal quality threshold configured by the network. ), and when the UE detects that the MCG radio link fails (Radio Link Failure, RLF), the UE initiates the MCG failure information (failure information) reporting process. During this process, the UE will suspend the transmission on the MCG until the UE receives Resume transmission after synchronous reconfiguration command. Data transmission during this period is interrupted, reducing communication performance.
  • RRC Radio Resource Control
  • RLM Radio Link Monitoring
  • RLF Radio Link Failure information
  • the UE will suspend the transmission on the MCG until the UE receives Resume transmission after synchronous reconfiguration command. Data transmission during this period is interrupted, reducing communication performance.
  • Embodiments of the present application provide an MCG recovery method, device, terminal, and readable storage medium, which can use SCG to quickly recover communication performance, shorten the duration of data transmission interruption due to MCG failure, and improve terminal communication performance.
  • a method for recovering MCG comprising:
  • the terminal performs at least one of the following:
  • the terminal determines a first SCG, and the first SCG is used to restore the MCG or restore the transmission of the MCG, wherein the at least two an SCG comprising said first SCG;
  • an MCG recovery device including:
  • An execution module configured to execute at least one of the following if an MCG failure occurs in the terminal:
  • the terminal is configured with at least two secondary cell group SCGs, determine the first SCG of the terminal, and the first SCG is used to restore the MCG or restore the transmission of the MCG, wherein the at least two a SCG including the first SCG;
  • a terminal in a third aspect, includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor. When the program or instruction is executed by the processor The steps of the method described in the first aspect are realized.
  • a terminal including a processor and a communication interface, wherein the processor is configured to execute at least one of the following if the terminal fails in MCG:
  • the terminal determines a first SCG, and the first SCG is used to restore the MCG or restore the transmission of the MCG, wherein the at least two an SCG comprising said first SCG;
  • a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to the first aspect are implemented.
  • a sixth aspect provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, the processor is used to run programs or instructions, and implement the method as described in the first aspect .
  • a computer program product is provided, the computer program product is stored in a non-transitory storage medium, and the computer program product is executed by at least one processor to realize the MCG restoration as described in the first aspect method steps.
  • the embodiment of the present application provides a communication device configured to execute the method as described in the first aspect.
  • the terminal if the terminal fails in the MCG, the terminal performs: when the terminal is configured with at least two SCGs, the terminal determines the first SCG, and the first SCG is used for Resuming the MCG or resuming the MCG transmission, wherein the at least two SCGs include the first SCG; and/or applying a first cell group configuration to the MCG, the first cell group configuration is used for to configure the SCG.
  • the SCG can be used to quickly restore the MCG, use the SCG to restore MCG transmission, and/or configure the SCG as the MCG, so as to reduce the impact of data transmission interruption caused by MCG failure on the communication performance of the terminal.
  • FIG. 1 is a block diagram of a wireless communication system to which an embodiment of the present application is applicable;
  • Fig. 2 is the flow chart of a kind of MCG recovery method provided by the embodiment of the present application.
  • Fig. 3 is a schematic structural diagram of an MCG recovery device provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a terminal provided by an embodiment of the present application.
  • first, second and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. 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 described herein and that "first" and “second” distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects.
  • “and/or” in the description and claims means at least one of the connected objects, and the character “/” generally means that the related objects are an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technologies can be used for the above-mentioned systems and radio technologies as well as other systems and radio technologies.
  • NR New Radio
  • the following description describes the New Radio (NR) system for illustrative purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th generation (6 th Generation, 6G) communication system.
  • 6G 6th Generation
  • Fig. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application is applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12 .
  • the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a palmtop computer, a netbook, a super mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), augmented reality (augmented reality, AR) / virtual reality (virtual reality, VR) equipment, robot, wearable device (Wearable Device) , vehicle equipment (Vehicle User Equipment, VUE), pedestrian terminals (Pedestrian User Equipment, PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.) and other terminal-side equipment, wearable Devices include: smart watches, smart bracelets, smart headphones, smart glasses,
  • the network side device 12 may be a base station or a core network, where a base station may be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, Wireless Local Area Network (WLAN) ) access point, wireless fidelity (Wireless Fidelity, WiFi) node, transmitting and receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to Specific technical terms, it should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the
  • the terminal when the following conditions are met, if the terminal has an MCG radio link failure (Radio Link Failure, RLF), the terminal triggers the MCG fast recovery process, that is, the Fast MCG recovery process, or called the MCG failure information process, in order
  • the MCG failure information process the following is collectively referred to as the MCG failure information process:
  • the network configures a timer T316 for the terminal
  • the network configures a split signaling radio bearer (split Signaling Radio Bearer, split SRB) 1 and/or SRB3 for the terminal;
  • split SRB split Signaling Radio Bearer
  • the terminal triggers the RRC connection reestablishment process.
  • the terminal When the terminal triggers the MCG failure information process, the terminal sends the MCG failure information (MCGFailureInformation) message to the MN through SCG (split SRB1 or SRB3). Specifically, if it is sent through SRB3, the terminal encapsulates the MCGFailureInformation message in the multi-wire The access technology (Radio Access Technology, RAT) dual connection uplink message transmission (ULInformationTransferMR-DC) is sent to the SN in the message container, and the SN sends the MCG Failure Information to the MN after receiving it; if it is sent through Split SRB1, Then the terminal sends the MCGFailureInformation message on the split SRB1.
  • RAT Radio Access Technology, RAT
  • ULInformationTransferMR-DC dual connection uplink message transmission
  • the terminal After sending the above message, the terminal starts the timer (timer) T316, and performs the following operations: suspend (suspend) transmission on all SRBs and DRBs of the MCG, reset the MCG Media Access Control (Medium Access Control, MAC) layer, save The current measurement configuration of the MN and SN, and continue to perform measurements based on the measurement configuration.
  • timer timer
  • the MN After receiving the MCGFailureInformation, the MN can send a reconfiguration (Reconfiguration) message or an RRC release (RRCRelease) message to the terminal, and the message is transparently transmitted to the terminal through the SN's multi-RAT dual connection downlink message transmission (DLInformationTransferMR-DC). If the terminal receives the RRCRelease message, it releases all radio bearers and configurations. During the operation of T316, if the terminal receives the Reconfiguration from MN, it stops T316 and resumes the transmission of MCG. If the terminal has not received the Reconfiguration of the MN after T316 timeout, the terminal triggers the RRC connection re-establishment process, and the terminal sets the re-establishment cause value to other failure (otherFailure) type.
  • DLInformationTransferMR-DC multi-RAT dual connection downlink message transmission
  • the terminal may cause MCG transmission interruption due to RRC connection re-establishment, and even if the terminal successfully triggers the MCG failure information process and the MN sends a Reconfiguration message to the terminal, however, in After the MCG failure occurs, the MCG transmission of the terminal is interrupted until the terminal receives a synchronous reconfiguration (Reconfiguration) command, and the data interruption during this period has a certain impact on user experience.
  • Reconfiguration synchronous reconfiguration
  • the terminal when an MCG failure occurs in the terminal, the terminal can determine the first SCG from at least two configured SCGs, so as to use the first SCG to quickly restore the configuration of the MCG, or transfer the original SCG that needs to be transmitted on the MCG
  • the data is transmitted or shared through the first SCG; or, the first cell group configuration of the SCG can also be applied to the MCG to quickly realize the reconfiguration of the MCG, which can shorten the duration of transmission interruption caused by MCG failure,
  • the communication performance of the terminal is improved.
  • this MCG restoration method can include the following steps:
  • Step 201 If the terminal fails in MCG, the terminal performs at least one of the following steps 202 and 203.
  • the above-mentioned MCG failure may include multiple types of failures.
  • the following embodiments take the MCG failure as a radio link failure (Radio Link Failure, RLF) as an example for illustration.
  • RLF Radio Link Failure
  • the upper layer does not immediately announce the radio link failure, but takes a buffer window to judge whether the radio link failure occurs, that is, if the terminal RRC layer from the lower layer ( lower layer) receives consecutive N310 out-of-sync (Out-of-Sync) indications, then the terminal RRC layer starts a timer T310; during the operation of this T310, if the terminal RRC layer receives continuous N311 synchronizations from the lower layer ( In-Sync) indication, the UE stops T310; if T310 times out, it considers that the radio link fails.
  • N310 out-of-sync Out-of-Sync
  • the out-of-sync (Out-of-Sync) indication the physical layer measures the signal-to-noise and interference ratio (SINR) of all RLM reference signals (RML reference signals, RLM-RS) If it is lower than the threshold, it is determined that the wireless link is out of synchronization, and an Out-of-Sync indication is reported to RRC;
  • SINR signal-to-noise and interference ratio
  • Synchronization (In-Sync) indication If the physical layer measures that the SINR of any reference signal RLM-RS is higher than the threshold, it will determine that the wireless link is in sync and report an In-Sync indication.
  • the terminal may only perform step 202, only step 203, or both steps 202 and 203.
  • the execution of step 202 or step 203 is taken as an example for illustration and does not constitute a specific limitation here.
  • Step 202 In the case that the terminal is configured with at least two SCGs, the terminal determines a first SCG, and the first SCG is used to restore the MCG or resume the transmission of the MCG, wherein the At least two SCGs include the first SCG.
  • the above-mentioned first SCG is used to restore the MCG, which can be understood as: the first SCG is used to initiate the MCG fast recovery process, for example: in the activation process of the first SCG, or in the activated state
  • the MCG failure information is sent on an SCG, so that the network side equipment can receive the MCG failure information in time, and quickly reconfigure the MCG according to the MCG failure information.
  • the sending of MCG failure information during the activation process of the first SCG in the embodiment of the present application, or on the first SCG in the activated state is different from the MCG failure information process in the related art, specifically In the related art, the terminal is only configured with one SCG, but in the embodiment of the present application, the terminal is configured with at least two SCGs. At this time, the terminal needs to determine at least one of the at least two SCGs as the first SCG.
  • the above-mentioned first SCG is used to recover the MCG transmission. It can be understood that when the MCG fails, all or part of the transmission on the MCG is allocated to the first SCG for transmission, so as to overcome the MCG failure and caused by transmission interruption.
  • the terminal determining the first SCG includes:
  • An SCG meeting at least one of the following conditions is determined as the first SCG:
  • RACH Physical Random Access Channel
  • the first SRB is a signaling radio bearer between the serving network element corresponding to the SCG and the terminal;
  • Another leg other than the MCG channel (leg) for at least one separate radio bearer of the terminal is another leg other than the MCG channel (leg) for at least one separate radio bearer of the terminal.
  • the SCG that satisfies the largest number of conditions may be further selected as the first SCG.
  • the aforementioned SCG that maintains uplink synchronization with the corresponding network side device can be understood as: the time alignment timer (time alignment timer, TAT) of the primary timing advance group (Primary Timing Advance Group, PTAG) of the SCG is running.
  • TAT time alignment timer
  • PTAG Primary Timing Advance Group
  • the above-mentioned dedicated RACH resource may be a dedicated RACH resource for any purpose, for example: a dedicated RACH resource for beam failure recovery (Beam Failu Recovery, BFR); or a dedicated RACH resource dedicated to activating the SCG;
  • a dedicated RACH resource for beam failure recovery Beam Failu Recovery, BFR
  • BFR beam failure recovery
  • BFR beam Failu Recovery
  • the aforementioned meeting the predefined wireless link quality requirements may include at least one of the following:
  • the link quality measurement value of the SCG is higher than a predefined threshold.
  • the above meeting the predefined beam quality requirements may include at least one of the following:
  • the beam measurement result of the SCG is higher than a predefined threshold.
  • the predefined terminal initiates the SCG activation process on the SCG in the first frequency range (Frequency Range, FR1) to restore the MCG.
  • the above condition for enabling the MCG fast recovery function can be understood as: if the first SCG is configured with the MCG fast recovery function, but the second SCG is not configured with the MCG fast recovery function, then the first SCG satisfies this condition. Or, both the first SCG and the second SCG are configured with the MCG fast recovery function, but the MCG fast recovery function of the first SCG is in an enabled state, while the MCG fast recovery function of the second SCG is in a disabled state. , then the first SCG satisfies this condition.
  • the SCG satisfying this condition is a channel (leg) of the split SRB1.
  • the above-mentioned first SRB is a signaling radio bearer between the serving network element corresponding to the SCG and the terminal, and may be SRB4 or SRB3 of the SCG.
  • the aforementioned pre-designated SCG may be one or some SCGs (for example: default SCG, primary SCG) pre-designated by the network side.
  • the terminal when the terminal is configured with at least two SCGs, if the terminal fails in MCG, the terminal can select an appropriate first SCG from at least two SCGs based on the above conditions, so as to pass the selected first SCG to resume MCG or resume MCG transmission.
  • determining the first SCG by the terminal includes:
  • the terminal selects one of the at least two SCGs satisfying at least one of the above conditions as the first SCG based on preset rules
  • the preset rules include at least one of the following:
  • an SCG with the best performance as the first SCG for example: both the first SCG and the second SCG meet the beam quality requirements, but the L1 Reference Signal Received Power (Layer 1Reference Signal Received Power, L1-RSRP) of the first SCG higher than the second SCG, the terminal selects the first SCG.
  • L1 Reference Signal Received Power Layer 1Reference Signal Received Power, L1-RSRP
  • one of at least two SCGs satisfying at least one of the above conditions may be selected to quickly restore the MCG.
  • the terminal may initiate an RRC re-establishment process, which will not be repeated here.
  • the method further includes:
  • the terminal initiates an activation process of the first SCG.
  • the SCG activation/deactivation mechanism is introduced in related protocols. That is, when there is no data to be transmitted on the SCG or the terminal is currently overheated or for the purpose of saving power, the network-side device and the terminal can initiate an SCG deactivation process. When these conditions change, the network side device and the terminal can initiate the SCG activation process again.
  • the terminal does not monitor the Physical Downlink Control Channel (PDCCH) on the SCG, and there is no Physical Uplink Shared Channel (PUSCH), Sounding Reference Signal (SRS) Transmission and other behaviors, the terminal can work in a relatively power-saving manner during this period.
  • the terminal may also perform SCG radio resource management (Radio Resource Management, RRM) measurement, radio link monitoring (Radio Link Monitoring, RLM) measurement, so as to ensure that the SCG is of good quality when the SCG is activated.
  • RRM Radio Resource Management
  • RLM Radio Link Monitoring
  • the first SCG determined by the terminal to restore MCG configuration or restore MCG transmission when the first SCG determined by the terminal to restore MCG configuration or restore MCG transmission is in the deactivated state, it may initiate the activation process of the first SCG to activate the first SCG, and based on the first SCG The activation procedure or the first SCG activated restores the MCG configuration.
  • MCG failure information when an MCG failure occurs in a terminal, MCG failure information may be generated, and based on the MCG failure information, the activation process of the first SCG may be triggered, for example: when an MCG failure occurs in a terminal, MCG failure information may be generated;
  • the resource control RRC layer transmits the MCG failure information to a lower protocol layer (lower layer), so as to trigger an activation procedure for the first SCG.
  • the UE may first initiate the first SCG activation procedure, and then generate MCG failure information during the first SCG activation procedure or generate and send the MCG failure information after the first SCG is activated.
  • the terminal initiates an activation process of the first SCG, including:
  • the terminal sends an SCG activation request to the network side device, requesting to activate the first SCG; or the terminal sets the first SCG to an activated state by itself.
  • the terminal when the terminal is allowed to directly initiate the SCG activation procedure to the first SCG, the terminal may set the first SCG to an active state by itself; optionally, the UE sets the first SCG to an active state by itself. is in an active state, and indicates to the network side that the first SCG is in an active state.
  • the terminal may send an SCG activation request to the network side device to request activation of the first SCG.
  • the activation of the first SCG fails, for example: the network side does not receive a response to the activation request of the first SCG, or the terminal fails to perform random access on the first SCG .
  • an RRC re-establishment procedure may be initiated, or another SCG may be selected to restore the MCG quickly.
  • the terminal receives downlink scheduling or is allocated transmission resources on the first SCG, it is determined that the first SCG is successfully activated, or if the terminal receives an SCG activation command, it can also determine that the first SCG SCG was successfully activated.
  • the terminal sends an SCG activation request to the network side device, requesting to activate the first SCG.
  • the network side device may be an MN, or an SN, or a serving network element corresponding to the first SCG. That is to say, the terminal can send the SCG activation request of the first SCG to the MN through the MCG (for example, through UE assistance information), or send the SCG activation request of the first SCG on the first SCG.
  • the terminal in addition to sending the SCG activation request of the first SCG on the first SCG, the terminal can also send a random access or scheduling request or any uplink signaling or data on the first SCG. Activation of the first SCG is requested.
  • the method also includes:
  • the terminal starts the MCG fast recovery timer T316 or the first timer, wherein the first timer is used for the terminal to try to recover the MCG on at least two SCGs;
  • the first timing includes: the timing when the terminal generates MCG failure information, the timing when the terminal sends MCG failure information, the timing when the terminal initiates the MCG fast recovery process, and the terminal initiates the activation process of the first SCG timing, timing when the terminal generates the first SCG activation request, timing when the terminal sends the first SCG activation request, or timing when the terminal initiates the SCG switching process (SCG Switching).
  • T316 or the first timer is used to limit the duration of the MCG recovery process, and the duration of T316 or the duration of the first timer can be set according to actual application scenarios, and is not specifically limited here.
  • RRC re-establishment can be initiated; when the first timer times out, the terminal can select another SCG other than the first SCG to restore the MCG, so as to avoid the failure caused by the first SCG being unavailable. , resulting in unnecessary waiting time.
  • the method further includes:
  • the terminal determines a third SCG from the at least two SCGs to restore the MCG:
  • the terminal receives a deactivation command of the first SCG
  • the terminal receives a network side rejection response to the first SCG activation procedure
  • the first SCG fails.
  • the above-mentioned remaining duration of T316 exceeds the preset duration, which can be understood as: the remaining duration of T316 may allow the terminal to restore the MCG through other SCGs.
  • the first SCG is unavailable (for example: the activation of the first SCG fails, the network side instructs to deactivate the first SCG or the network side rejects the terminal’s request to activate the first SCG, etc.), and the remaining duration of T316 exceeds the preset duration, Then the terminal can determine other SCGs except the first SCG to recover the MCG.
  • the method further includes at least one of the following:
  • the terminal determines a third SCG from the at least two SCGs to restore the MCG;
  • the terminal receives an activation command of the first SCG
  • the terminal receives an acceptance response to the first SCG activation procedure from the network side;
  • the first SCG is successfully activated
  • the terminal determines that the first timer times out:
  • the terminal receives a deactivation command of the first SCG
  • the terminal receives a network side rejection response to the first SCG activation procedure
  • the activation of the first SCG fails.
  • the above-mentioned acceptance response of the network side to the first SCG activation process can be understood as at least one of the following: the network side schedules the terminal for uplink and/or downlink transmission, and the network side assigns the terminal for uplink and/or downlink transmission
  • the resource accepts an accept instruction of the first SCG activation procedure.
  • the activation of the first SCG may not be successful, and the network side device may not immediately respond to the SCG activation process. If it can be determined that the first SCG can be successfully activated, another SCG may be tried to restore the MCG.
  • the terminal determines a third SCG from the at least two SCGs to restore the MCG, including:
  • SR resource is configured with a scheduling request SR resource
  • the first SRB is a signaling radio bearer between the serving network element corresponding to the SCG and the terminal;
  • Another leg other than the MCG channel leg for at least one separate radio bearer of the terminal.
  • the above manner of determining the third SCG is similar to the manner of determining the first SCG, and will not be repeated here.
  • the terminal determines a third SCG from the at least two SCGs to restore the MCG, and further includes:
  • the terminal sends failure information (SCG failure information) of the first SCG, where the failure information of the first SCG corresponds to
  • the failure types include: RACH failure (RACH failure) or SCG activation failure (SCG activation failure) or other failure (other).
  • the process of restoring the MCG by using the third SCG is similar to the process of restoring the MCG by using the first SCG, and the failure information of the first SCG can be sent together with the MCG failure information. I won't go into details.
  • the terminal sends the failure information of the first SCG, so that the network side device can According to the failure type of the failure information of an SCG, corresponding operations are performed, for example: recovering the first SCG, reconfiguring the SCG, and so on.
  • the at least two SCGs may also include other second SCGs in the activated state, and the terminal can deactivate the second SCG, or suspend the activation of the second SCG. transmission.
  • the method further includes at least one of the following:
  • the terminal initiates a deactivation process of the second SCG
  • the terminal suspends the transmission of the second SCG
  • the terminal initiates an SCG switching process (SCG Switching), and the SCG switching process is used to deactivate the second SCG and activate the first SCG.
  • SCG Switching SCG switching process
  • the above-mentioned first SCG may be an SCG that is more suitable for recovering the MCG than the second SCG.
  • the first SCG and the second SCG meet at least one of the following conditions:
  • the first SCG has higher radio link quality than the second SCG
  • the first SCG has a higher beam quality than the second SCG
  • the first SCG has more transmission resources than the second SCG;
  • the first SCG enables the MCG fast recovery function but the second SCG does not;
  • the first SCG is another leg other than the MCG leg of at least one split radio bearer of the terminal; for example, the MN configures multiple split DRBs for the terminal, and each DRB has 2 legs, respectively MCG and The first SCG, when the MCG fails, the UE can activate the first SCG, so that MCG data can be transmitted on the first SCG, thereby reducing the interruption of MCG data transmission;
  • the terminal is allowed to directly initiate SCG activation to the first SCG, but is not allowed to directly initiate SCG activation to the second SCG;
  • the first SCG is a preset SCG, for example: the first SCG is a primary (primary) SCG or a default (default) SCG.
  • the aforementioned terminal initiating the SCG switching process may be understood as: deactivating the second SCG and activating the first SCG through a process.
  • the terminal when the terminal initiates the SCG switching process, once the activation process of the first SCG is initiated, the terminal suspends the transmission of all SRBs and DRBs on the second SCG.
  • the terminal may implement the process of initiating the deactivation of the second SCG in the following manner:
  • the terminal sends an SCG deactivation request to the network side device, requesting to deactivate the second SCG; or the terminal sets the second SCG to a deactivated state by itself.
  • the terminal may set the second SCG to a deactivated state by itself.
  • the terminal may send an SCG deactivation request to the network side device to request deactivation of the second SCG.
  • the network-side device may determine a response to the received SCG deactivation request according to the SCG activation/deactivation-related policy. The response may be to send an SCG deactivation command to the terminal.
  • the terminal sends an SCG deactivation command to the network-side device. After the deactivation request, if the SCG deactivation command sent by the network side device is received, the terminal may deactivate the second SCG based on the SCG deactivation command.
  • the terminal is not allowed to deactivate the SCG locally, or the terminal sends the SCG deactivation request to the network side device within a preset time. SCG deactivation command not received.
  • the terminal can suspend the transmission of the second SCG, that is, not send and receive data on the second SCG; After the network side device sends the SCG deactivation request, if the terminal does not receive the deactivation command of the second SCG within a preset period of time, the terminal automatically sets the second SCG to a deactivation state.
  • the terminal may request the network side to deactivate the second SCG during the process of requesting activation of the first SCG; or the terminal may deactivate the second SCG by itself before requesting activation of the first SCG. This does not limit the order in which the terminal activates the first SCG and deactivates the second SCG.
  • the terminal initiates a deactivation process of the second SCG, including:
  • the terminal suspends the transmission of the second SCG
  • the terminal If the terminal does not receive the deactivation command of the second SCG within a preset time length, the terminal automatically sets the second SCG to a deactivation state.
  • the terminal when the terminal requests the network side to deactivate the second SCG, if the terminal does not receive the deactivation command of the second SCG within the preset time length, it will no longer wait for the deactivation command from the network side.
  • activation command instead of setting the second SCG to the deactivation state by itself, so as to shorten the duration of deactivating the second SCG; in addition, the terminal can also keep the second SCG in the activation state but suspend the transmission of the second SCG , so that the first SCG can be successfully activated.
  • the terminal may deactivate the second SCG that was originally in the activated state, Either suspend the transmission of the second SCG, or initiate an SCG switching process, so that the terminal can use the first SCG to restore the MCG.
  • the terminal determines a first SCG, and the first SCG is used to resume the MCG transmission, including:
  • the terminal determines the first SCG from other SCGs:
  • the terminal is executing the activation process of this SCG
  • the terminal determines to use the SCG to report the failure information of the MCG.
  • this embodiment there may be at least two SCGs in the active state. For example, if the terminal already has one SCG in the active state, the terminal initiates the activation process of another SCG. Or the terminal successively initiates at least two SCG activation procedures, etc., to use at least two SCGs to resume the MCG transmission, for example: use at least two SCGs to resume MCG transmission. In this way, during the process of MCG recovery configuration, it can also MCG transmission is not interrupted.
  • the above manner of determining the first SCG may be the same as the manner of determining the first SCG in the previous optional implementation manner, which will not be repeated here.
  • the first SCG is a leg other than the MCG leg of the terminal's separated radio bearer.
  • Split SRB1 corresponds to 3 legs, which are MCG, first SCG, and second SCG. Then when the MCG fails, the UE can activate the first SCG and the second SCG to transmit the data of the split SRB1 and/or send MCG failure information.
  • the first SCG may also be another leg of the terminal's separated radio bearer except the target SCG leg.
  • the target SCG leg is the currently activated SCG.
  • split SRB1 corresponds to 2 legs, which are MCG and the first SCG
  • split SRB3 corresponds to 2 legs, which are the first SCG and the second SCG.
  • the terminal may initiate an activation process of the first SCG.
  • the process by which the terminal may initiate the activation procedure of the first SCG is the same as the procedure in which the terminal initiates the activation procedure of the first SCG in the previous embodiment, and details are not repeated here.
  • the UE can use the first SCG and other activated SCGs to jointly resume MCG transmission.
  • the terminal may deactivate the above-mentioned first SCG.
  • the terminal deactivates the second SCG and reconfigures the MCG.
  • Step 203 Apply the first cell group configuration to the MCG, where the first cell group configuration is used to configure the SCG.
  • the fast reconfiguration of the MCG can be realized, and the effect of accelerating the transmission of the MCG by using the reconfigured MCG can be achieved.
  • the configuration of the first cell group includes at least one of the following:
  • Public cell group configuration where the public cell group configuration is used to configure the MCG and at least one SCG of the terminal.
  • the SCG configuration it may be any SCG configuration of the terminal. If the terminal is configured with at least two SCGs, the terminal may select one SCG and apply the SCG configuration to the MCG of the terminal. And the above SCG configuration may be the configuration of the first SCG in the above implementation manner.
  • each cell group includes a special cell (Special Cell, SpCell) and a series of secondary cells (Secondary Cell, SCell).
  • the special cell in MCG is called Primary Cell (PCell), and the special cell in SCG is called Primary Secondary Cell (PSCell).
  • PCell Primary Cell
  • PSCell Primary Secondary Cell
  • Candidate PSCells meeting the CPC execution conditions for primary-secondary cell handover can be used to configure the primary cell group or the secondary cell group, and which cell group to configure at which time can be determined by agreement or network side configuration.
  • the public cell group configuration can be used to configure the MCG and the fourth SCG of the terminal, but at the same time, the public cell group configuration can only be applied to one of the MCG and the fourth SCG.
  • the network side may indicate that the configuration of the public cell group is applied to the fourth SCG at this time.
  • the terminal may apply the common cell group configuration (that is, the configuration applied to the fourth SCG) to the MCG.
  • the applying the configuration of the first cell group to the MCG includes:
  • the terminal When the terminal receives the first indication information, the terminal configures the first cell group as an MCG, where the first indication information is used to indicate that the terminal will The first cell group is configured as the MCG.
  • the above-mentioned first indication information may be pre-configured indication information. In this way, when the MCG failure occurs in the terminal, the first cell group can be directly configured as The MCG.
  • configuring the first cell group as the MCG may also be implemented in other ways, for example: requesting the network side device to configure the first cell group as the MCG, which is not specifically limited here.
  • the method also includes at least one of the following:
  • the terminal suspends the transmission of the first group of cells
  • the terminal Before configuring the first cell group as the MCG, the terminal deletes the MCG configuration
  • the terminal After configuring the first cell group as the MCG, the terminal releases or reconfigures the first cell group.
  • the first cell group may be an SCG in an activated state, and the SCG may also have ongoing transmissions.
  • the transmission on the SCG may be suspended to apply After MCG, perform MCG transmission.
  • the first cell group may be released or reconfigured, depending on: whether there is a pre-configured SCG release indication or a candidate configuration of the first cell group, or Whether there are other active SCGs.
  • the terminal releases the first cell group
  • the terminal reconfigures the first cell group.
  • the terminal may release the fourth SCG; or, if the terminal is not pre-configured with candidate configurations of the fourth SCG In this case, if the terminal also includes other activated SCGs, the terminal can release the fourth SCG; or, if the terminal is pre-configured with a release instruction to release one of the SCGs when two SCGs exist at the same time, If the terminal also includes other SCGs in an activated state, the terminal may release the fourth SCG;
  • the terminal may configure the fourth SCG.
  • the configuration of the first cell group is applied to the MCG, it may be determined whether to release the first cell group or reconfigure the first cell group according to the configuration.
  • the method further includes:
  • the terminal sends second indication information to the network side device, where the second indication information is used to indicate that the first cell group is reconfigured as an MCG.
  • the terminal may notify the network side device that the first cell group is reconfigured as the MCG, so that the network side device performs subsequent processing such as resource allocation accordingly.
  • the terminal if the terminal fails in the MCG, the terminal performs: when the terminal is configured with at least two SCGs, the terminal determines the first SCG, and the first SCG is used for Resuming the MCG or resuming the MCG transmission, wherein the at least two SCGs include the first SCG; and/or applying a first cell group configuration to the MCG, the first cell group configuration is used for to configure the SCG.
  • the SCG can be used to quickly restore the MCG, use the SCG to restore MCG transmission, and/or configure the SCG as the MCG, so as to reduce the impact of data transmission interruption caused by MCG failure on the communication performance of the terminal.
  • the MCG recovery method provided in the embodiment of the present application may be executed by an MCG recovery device, or a control module in the MCG recovery device for executing the MCG recovery method.
  • the MCG recovery device provided in the embodiment of the present application is described by taking the MCG recovery device executing the MCG recovery method as an example.
  • the MCG recovery device 300 provided in the embodiment of the present application may include:
  • Executing module 301 configured to execute at least one of the following if MCG failure occurs in the terminal:
  • the terminal is configured with at least two secondary cell group SCGs, determine the first SCG of the terminal, and the first SCG is used to restore the MCG or restore the transmission of the MCG, wherein the at least two a SCG including the first SCG;
  • the execution module 301 includes:
  • a first determining unit configured to determine an SCG that meets at least one of the following conditions as the first SCG:
  • SR resource is configured with a scheduling request SR resource
  • the first SRB is the signaling radio bearer between the serving network element corresponding to the SCG and the terminal;
  • Another leg other than the MCG channel leg for at least one separate radio bearer of the terminal.
  • the MCG recovery device 300 also includes:
  • a first procedure initiating module configured to initiate an activation procedure of the first SCG if the first SCG is in a deactivated state.
  • the MCG recovery device 300 also includes:
  • a first sending module configured to send MCG failure information during the activation process of the first SCG or after the first SCG is activated.
  • the MCG recovery apparatus 300 further includes at least one of the following:
  • a second process initiating module configured to initiate the deactivation process of the second SCG
  • a first transmission module configured to suspend the transmission of the second SCG
  • a third process initiating module configured to initiate an SCG conversion process, where the SCG conversion process is used to deactivate the second SCG and activate the first SCG.
  • the MCG recovery device 300 also includes:
  • a timing module configured to start the MCG fast recovery timer T316 or a first timer when the first opportunity arrives, wherein the first timer is used for the terminal to attempt to recover the MCG on at least two SCGs;
  • the first timing includes: the timing when the terminal generates MCG failure information, the timing when the terminal sends MCG failure information, the timing when the terminal initiates the MCG fast recovery process, and the terminal initiates the activation process of the first SCG timing, timing when the terminal generates the first SCG activation request, timing when the terminal sends the first SCG activation request, or timing when the terminal initiates the SCG switching process.
  • the MCG recovery device 300 further includes:
  • the first determination module is configured to determine a third SCG from the at least two SCGs to restore the T316 if at least one of the following events occurs and the remaining duration of the T316 exceeds a preset duration during the operation of the T316.
  • Said MCG :
  • the terminal receives a deactivation command of the first SCG
  • the terminal receives a network side rejection response to the first SCG activation procedure
  • the first SCG fails.
  • the MCG recovery device 300 further includes at least one of the following:
  • a second determining module configured to determine a third SCG from the at least two SCGs to restore the MCG after the first timer expires
  • a timer control module configured to stop the first timer if at least one of the following events occurs during the operation of the first timer:
  • the terminal receives an activation command of the first SCG
  • the terminal receives an acceptance response to the first SCG activation procedure from the network side;
  • the first SCG is successfully activated
  • a third determining module configured to determine that the first timer is timed out if at least one of the following events occurs during the running of the first timer:
  • the terminal receives a deactivation command of the first SCG
  • the terminal receives a network side rejection response to the first SCG activation procedure
  • the activation of the first SCG fails.
  • the first determining module or the second determining module includes:
  • the second determining unit is configured to determine, in addition to the first SCG, an SCG that satisfies at least one of the following conditions as a third SCG:
  • SR resource is configured with a scheduling request SR resource
  • the first SRB is a signaling radio bearer between the serving network element corresponding to the SCG and the terminal;
  • Another leg other than the MCG channel leg for at least one separate radio bearer of the terminal.
  • the first determining module or the second determining module further includes:
  • a sending unit configured to send the failure information of the first SCG during the activation process of the third SCG or after the third SCG is activated, wherein the failure information of the first SCG corresponds to a failure type Including: other failures or RACH failures or SCG activation failures.
  • the first process initiating module is specifically configured to:
  • the second process initiating module is specifically configured to:
  • the second process initiating module is specifically configured to:
  • the terminal If the terminal does not receive the deactivation command of the second SCG within a preset time period, it sets the second SCG to a deactivation state by itself.
  • the configuration of the first cell group includes at least one of the following:
  • Public cell group configuration where the public cell group configuration is used to configure the MCG and at least one SCG of the terminal.
  • the execution module 301 is specifically configured to:
  • the terminal When the terminal receives the first indication information, configure the first cell group as an MCG, where the first indication information is used to indicate that the second A cell group is configured as the MCG.
  • the MCG recovery device 300 also includes at least one of the following:
  • a second transmission module configured to suspend the transmission of the first cell group
  • a deletion module configured to delete the MCG configuration before configuring the first cell group as the MCG
  • a configuration module configured to release or reconfigure the first cell group after configuring the first cell group as the MCG.
  • the MCG recovery device 300 also includes:
  • the second sending module is configured to send second indication information to the network side device, where the second indication information is used to indicate that the first cell group is reconfigured as an MCG.
  • the configuring module is configured to release the first cell group
  • the configuration module is configured to reconfigure the first cell group .
  • the execution module 301 includes:
  • the second determining unit is configured to determine the first SCG from other SCGs when at least one SCG of the terminal satisfies at least one of the following conditions:
  • the terminal is executing the activation process of the SCG
  • the terminal determines to use the SCG to report the failure information of the MCG.
  • the first SCG is a leg other than the MCG leg of the terminal's separated radio bearer.
  • the MCG recovery device 300 also includes:
  • a fourth process initiating module configured to initiate the activation process of the first SCG.
  • the MCG recovery device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or a component, an integrated circuit, or a chip in a terminal.
  • the apparatus or electronic equipment may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include but not limited to the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machines or self-service machines, etc., are not specifically limited in this embodiment of the present application.
  • the MCG recovery device provided in the embodiment of the present application can implement the various processes implemented in the embodiment of the MCG recovery method shown in FIG. 2 and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • the embodiment of the present application further provides a communication device 400, including a processor 401, a memory 402, and programs or instructions stored in the memory 402 and operable on the processor 401,
  • a communication device 400 including a processor 401, a memory 402, and programs or instructions stored in the memory 402 and operable on the processor 401
  • the communication device 400 is a terminal
  • the program or instruction is executed by the processor 401
  • each process of the above embodiment of the MCG recovery method can be realized, and the same technical effect can be achieved.
  • the communication device 400 is a network-side device
  • the program or instruction is executed by the processor 401
  • each process of the above-mentioned MCG recovery method embodiment can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
  • the embodiment of the present application also provides a terminal, including a processor and a communication interface, and the processor is configured to perform at least one of the following if the terminal fails MCG:
  • the terminal determines a first SCG, and the first SCG is used to restore the MCG or restore the transmission of the MCG, wherein the at least two an SCG comprising said first SCG;
  • FIG. 5 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 500 includes, but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, and a processor 510, etc. at least some of the components.
  • the terminal 500 can also include a power supply (such as a battery) for supplying power to various components, and the power supply can be logically connected to the processor 510 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.
  • a power supply such as a battery
  • the terminal structure shown in FIG. 5 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange different components, which will not be repeated here.
  • the input unit 504 may include a graphics processor (Graphics Processing Unit, GPU) 5041 and a microphone 5042, and the graphics processor 5041 is used for the image capture device (such as the image data of the still picture or video obtained by the camera) for processing.
  • the display unit 506 may include a display panel 5061, and the display panel 5061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 507 includes a touch panel 5071 and other input devices 5072 .
  • the touch panel 5071 is also called a touch screen.
  • the touch panel 5071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 5072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.
  • the radio frequency unit 501 receives the downlink data from the network side device, and processes it to the processor 510; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the memory 509 can be used to store software programs or instructions as well as various data.
  • the memory 509 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 509 may include a high-speed random access memory, and may also include a nonvolatile memory, wherein the nonvolatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • PROM erasable programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.
  • the processor 510 may include one or more processing units; optionally, the processor 510 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs or instructions, etc., Modem processors mainly handle wireless communications, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 510 .
  • the processor 510 is configured to perform at least one of the following if an MCG failure occurs in the terminal:
  • the terminal determines a first SCG, and the first SCG is used to restore the MCG or restore the transmission of the MCG, wherein the at least two an SCG comprising said first SCG;
  • the determining the first SCG performed by the processor 510 includes:
  • An SCG meeting at least one of the following conditions is determined as the first SCG:
  • SR resource is configured with a scheduling request SR resource
  • the first SRB is a signaling radio bearer between the serving network element corresponding to the SCG and the terminal;
  • Another leg other than the MCG channel leg for at least one separate radio bearer of the terminal.
  • processor 510 determines the first SCG, it is further used to:
  • the first SCG is in a deactivated state, initiate an activation process of the first SCG.
  • the radio frequency unit 501 is configured to:
  • the processor 510 is further configured to perform at least one of the following:
  • SCG switching process is initiated, the SCG switching process is used to deactivate the second SCG and activate the first SCG.
  • processor 510 is also used for:
  • the terminal starts the MCG fast recovery timer T316 or the first timer, wherein the first timer is used for the terminal to try to recover the MCG on at least two SCGs;
  • the first timing includes: the timing when the terminal generates MCG failure information, the timing when the terminal sends MCG failure information, the timing when the terminal initiates the MCG fast recovery process, and the terminal initiates the activation process of the first SCG timing, timing when the terminal generates the first SCG activation request, timing when the terminal sends the first SCG activation request, or timing when the terminal initiates the SCG switching process.
  • the processor 510 when the processor 510 starts the T316, the processor 510 is further configured to:
  • the terminal receives a deactivation command of the first SCG
  • the terminal receives a network side rejection response to the first SCG activation procedure
  • the first SCG fails.
  • the processor 510 when the processor 510 starts the first timer, the processor 510 is further configured to perform at least one of the following:
  • the first timer if at least one of the following events occurs, the first timer is stopped:
  • the terminal receives an activation command of the first SCG
  • the terminal receives an acceptance response to the first SCG activation procedure from the network side;
  • the first SCG is successfully activated
  • the first timer if at least one of the following events occurs, it is determined that the first timer is timed out:
  • the terminal receives a deactivation command of the first SCG
  • the terminal receives a network side rejection response to the first SCG activation procedure
  • the activation of the first SCG fails.
  • the terminal executed by the processor 510 determines a third SCG from the at least two SCGs to restore the MCG, including:
  • SR resource is configured with a scheduling request SR resource
  • the first SRB is a signaling radio bearer between the serving network element corresponding to the SCG and the terminal;
  • Another leg other than the MCG channel leg for at least one separate radio bearer of the terminal.
  • the determining the third SCG from the at least two SCGs to restore the MCG performed by the processor 510 further includes:
  • the terminal sends the failure information of the first SCG, where the failure types corresponding to the failure information of the first SCG include: Other failures or RACH failure or SCG activation failure.
  • the process of initiating the activation of the first SCG executed by the processor 510 includes:
  • the terminal sends an SCG activation request to the network side device, requesting to activate the first SCG; or the terminal sets the first SCG to an activated state by itself.
  • the process of initiating the deactivation of the second SCG executed by the processor 510 includes:
  • the terminal sends an SCG deactivation request to the network side device, requesting to deactivate the second SCG; or the terminal sets the second SCG to a deactivated state by itself.
  • the process of initiating the deactivation of the second SCG executed by the processor 510 includes:
  • the terminal suspends the transmission of the second SCG
  • the terminal If the terminal does not receive the deactivation command of the second SCG within a preset time length, the terminal automatically sets the second SCG to a deactivation state.
  • the configuration of the first cell group includes at least one of the following:
  • Public cell group configuration where the public cell group configuration is used to configure the MCG and at least one SCG of the terminal.
  • the applying the configuration of the first cell group to the MCG performed by the processor 510 includes:
  • the processor 510 configures the first cell group as an MCG, where the first indication information is used to indicate that when the MCG failure occurs in the terminal, the The first cell group is configured as the MCG.
  • processor 510 is further configured to perform at least one of the following:
  • the radio frequency unit 501 is further configured to:
  • the processor 510 releases the first cell group
  • the processor 510 releases and reconfigures the first cell group.
  • the terminal executed by the processor 510 determines the first SCG, and the first SCG is used to resume the MCG transmission, including:
  • the processor 510 determines the first SCG from other SCGs:
  • the terminal is executing the activation process of this SCG
  • the terminal determines to use the SCG to report the failure information of the MCG.
  • the first SCG is a leg other than the MCG leg of the terminal's separated radio bearer.
  • processor 510 determines the first SCG, it is further used to:
  • the terminal 500 provided in the embodiment of the present application can implement each process in the method embodiment shown in FIG. 2 and can achieve the same beneficial effects. To avoid repetition, details are not repeated here.
  • the embodiment of the present application also provides a readable storage medium, the readable storage medium stores a program or an instruction, and when the program or instruction is executed by a processor, the various processes in the above embodiment of the MCG recovery method can be achieved, and the same To avoid repetition, the technical effects will not be repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiments.
  • the readable storage medium includes computer readable storage medium, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
  • the embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to realize the above-mentioned MCG recovery embodiments. process, and can achieve the same technical effect, in order to avoid repetition, it will not be repeated here.
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • the embodiment of the present application further provides a computer program product, the computer program product is stored in a non-volatile storage medium, and the computer program product is executed by at least one processor to implement the various processes of the above method embodiments, And can achieve the same technical effect, in order to avoid repetition, no more details here.
  • the term “comprising”, “comprising” or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase “comprising a " does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.
  • the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
  • the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.

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Abstract

本申请公开了一种主小区组MCG恢复方法、装置、终端和可读存储介质,属于通信技术领域,本申请实施例的主小区组MCG恢复方法包括:若终端发生MCG失败,所述终端执行:在所述终端被配置至少两个辅小区组SCG的情况下,所述终端确定第一SCG,所述第一SCG用于恢复所述MCG或恢复所述MCG传输,其中,所述至少两个SCG包括所述第一SCG;和/或,将第一小区组配置应用于所述MCG,所述第一小区组配置用于配置SCG。

Description

主小区组MCG恢复方法、装置、终端和可读存储介质
相关申请的交叉引用
本申请主张在2021年09月29日在中国提交的中国专利申请No.202111155132.8的优先权,其全部内容通过引用包含于此。
技术领域
本申请属于通信技术领域,具体涉及一种主小区组MCG恢复方法、装置、终端和可读存储介质。
背景技术
目前,通过双连接(Dual Connectivity,DC)技术,可以为用户终端(User Equipment,UE)配置两个网络节点的资源,其中,一个网络节点称为主节点(Master node,MN),另一个称为辅节点(Secondary node,SN),MN控制的小区组为主小区组(Master Cell Group,MCG),SN控制的小区组为辅小区组(Secondary Cell Group,SCG)。
在相关技术中,当UE处于无线资源控制(Radio Resource Control,RRC)连接态(CONNECTED)时,UE会基于参考信号和网络配置的参考信号质量阈值,进行无线链路监测(Radio Link Monitoring,RLM),且当UE监测到MCG无线链路失败(Radio Link Failure,RLF)了,UE就发起MCG失败信息(failure information)上报流程,该过程中UE会挂起在MCG上的传输,直到UE收到同步重配命令后再恢复传输。这期间的数据传输中断,降低了通信性能。
发明内容
本申请实施例提供一种MCG恢复方法、装置、终端和可读存储介质,能够利用SCG快速的恢复通信性能,以缩短因MCG失败,使得数据传输中断的时长,能够提升终端的通信性能。
第一方面,提供了一种MCG恢复方法,该方法包括:
若终端发生MCG失败,所述终端执行以下至少一项:
在所述终端被配置至少两个辅小区组SCG的情况下,所述终端确定第一SCG,所述第一SCG用于恢复所述MCG或恢复所述MCG传输,其中,所述至少两个SCG包括所述第一SCG;
将第一小区组配置应用于所述MCG,所述第一小区组配置用于配置SCG。
第二方面,提供了一种MCG恢复装置,包括:
执行模块,用于若终端发生MCG失败,则执行以下至少一项:
在所述终端被配置至少两个辅小区组SCG的情况下,确定所述终端的第一SCG,所述第一SCG用于恢复所述MCG或恢复所述MCG传输,其中,所述至少两个SCG包括所述第一SCG;
将第一小区组配置应用于所述MCG,所述第一小区组配置用于配置SCG。
第三方面,提供了一种终端,该终端包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第四方面,提供了一种终端,包括处理器及通信接口,其中,所述处理器用于若终端发生MCG失败,则执行以下至少一项:
在所述终端被配置至少两个辅小区组SCG的情况下,所述终端确定第一SCG,所述第一SCG用于恢复所述MCG或恢复所述MCG传输,其中,所述至少两个SCG包括所述第一SCG;
将第一小区组配置应用于所述MCG,所述第一小区组配置用于配置SCG。
第五方面,提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤。
第六方面,提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如第一方面所述的方法。
第七方面,提供了一种计算机程序产品,所述计算机程序产品被存储在非瞬态的存储介质中,所述计算机程序产品被至少一个处理器执行以实现如第一方面所述的MCG恢复方法的步骤。
第八方面,本申请实施例提供了一种通信设备,所述通信设备被配置成 用于执行如第一方面所述的方法。
在本申请实施例中,若终端发生MCG失败,所述终端执行:在所述终端被配置至少两个辅小区组SCG的情况下,所述终端确定第一SCG,所述第一SCG用于恢复所述MCG或恢复所述MCG传输,其中,所述至少两个SCG包括所述第一SCG;和/或,将第一小区组配置应用于所述MCG,所述第一小区组配置用于配置SCG。这样,可以利用SCG快速地恢复MCG、利用SCG恢复MCG传输和/或将SCG配置为MCG,以降低因MCG失败而造成的数据传输中断对终端的通信性能的影响。
附图说明
图1是本申请实施例可应用的一种无线通信系统的框图;
图2是本申请实施例提供的一种MCG恢复方法的流程图;
图3是本申请实施例提供的一种MCG恢复装置的结构示意图;
图4是本申请实施例提供的一种通信设备的结构示意图;
图5是本申请实施例提供的一种终端的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long  Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,还可用于其他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access,SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下大部分描述中使用NR术语,但是这些技术也可应用于NR系统应用以外的应用,如第6代(6 th Generation,6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12。其中,终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer,UMPC)、移动上网装置(Mobile Internet Device,MID)、增强现实(augmented reality,AR)/虚拟现实(virtual reality,VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(Vehicle User Equipment,VUE)、行人终端(Pedestrian User Equipment,PUE)、智能家居(具有无线通信功能的家居设备,如冰箱、电视、洗衣机或者家具等)等终端侧设备,可穿戴式设备包括:智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装、游戏机等。需要说明的是,在本申请实施例并不限定终端11的具体类型。网络侧设备12可以是基站或核心网,其中,基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station,BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、无线局域网(Wireless Local Area Network,WLAN)接入点、无线保真(Wireless Fidelity, WiFi)节点、发送接收点(Transmitting Receiving Point,TRP)或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于特定技术词汇,需要说明的是,在本申请实施例中仅以NR系统中的基站为例,但是并不限定基站的具体类型。
相关技术中,在满足以下条件时,若终端发生MCG无线链路失败(Radio Link Failure,RLF),则终端触发MCG快速恢复流程,即Fast MCG recovery流程,或者称之为MCG failure information流程,为了便于说明,以下统一称之为MCG failure information流程:
网络给终端配置了定时器T316;
网络给终端配置了分离信令无线承载(split Signalling Radio Bearer,split SRB)1和/或SRB3;
在终端的接入层(Access Stratum,AS)安全激活后,且SRB2和至少一个数据无线承载(Data Radio Bearer,DRB)已建立。
若不满足以上条件,则终端触发RRC连接重建流程。
而在终端触发MCG failure information流程的情况下,终端通过SCG(split SRB1或SRB3)向MN发送MCG失败信息(MCGFailureInformation)消息,具体的,如果是通过SRB3发送,则终端将MCGFailureInformation消息封装在多无线接入技术(Radio Access Technology,RAT)双连接上行消息传输(ULInformationTransferMR-DC)这一消息容器中发送给SN,SN收到后将其中的MCG Failure Information传给MN;如果是通过Split SRB1发送,则终端在split SRB1上发送MCGFailureInformation消息即可。发送上述消息后终端启动计时器(timer)T316,并执行以下操作:挂起(suspend)MCG的所有SRB和DRB上的传输,重置MCG媒体接入控制(Medium Access Control,MAC)层,保存MN和SN的当前测量配置,并基于测量配置继续执行测量。
MN收到MCGFailureInformation后,可以给终端发送重配置(Reconfiguration)消息或RRC释放(RRCRelease)消息,该消息通过SN的多RAT双连接下行消息传输(DLInformationTransferMR-DC)透传给终端。终端如果收到RRCRelease消息,则释放所有无线承载和配置。在T316运行 期间,终端如果收到MN的Reconfiguration,就停止T316并恢复MCG的传输。如果T316超时终端还没有收到MN的Reconfiguration,则终端触发RRC连接重建流程,终端将重建原因值设置为其他失败(otherFailure)类型。
由上可知,相关技术中在终端发生MCG RLF的情况下,终端可能因RRC连接重建而造成MCG传输中断,且即使终端成功触发了MCG failure information流程,且MN给终端发送Reconfiguration消息,但是,在发生MCG失败之后,一直到终端收到同步重配(Reconfiguration)命令之前,终端的MCG传输中断,该期间的数据中断对用户体验产生一定的影响。
而本申请实施例中,在终端发生MCG失败时,终端可以从配置的至少两个SCG中确定第一SCG,以利用第一SCG快速的恢复MCG的配置,或者将原本需要在MCG上传输的数据通过第一SCG进行传输或分摊;或者,还可以通过将SCG的第一小区组配置应用于所述MCG,来快速的实现MCG的重配置,能够缩短因MCG失败造成的传输中断的时长,提升了终端的通信性能。
下面结合附图,通过一些实施例及其应用场景对本申请实施例提供的MCG恢复方法、MCG恢复装置、终端和可读存储介质进行详细地说明。
请参阅图2,本申请实施例提供了一种MCG恢复方法,该MCG恢复方法的执行主体可以是终端,如图2所示,该MCG恢复方法可以包括以下步骤:
步骤201、若终端发生MCG失败,所述终端执行以下步骤202和步骤203中的至少一项。
在具体实施中,上述MCG失败可以包括多种失败类型,为了便于说明,以下实施例中以所述MCG失败为无线链路失败(Radio Link Failure,RLF)为例进行举例说明。
对于RLF,在终端的物理层测量到满足失步条件时,高层并不马上宣布无线链路失败,而是采取一个缓冲窗口来判断是否发生了无线链路失败,即如果终端RRC层从低层(lower layer)收到连续的N310个失步(Out-of-Sync)指示,则终端RRC层开启一个定时器T310;在该T310运行期间,如果终端RRC层从lower layer收到连续N311个同步(In-Sync)指示,则UE停止 T310;如果T310超时,则认为无线链路失败。
其中,失步(Out-of-Sync)指示:物理层测量到所有RLM参考信号(RML reference signals,RLM-RS)的信号与干扰加噪声比(signal-to-noise and interference ratio,SINR)都低于门限,则认定该无线链路失去同步,并向RRC上报Out-of-Sync指示;
同步(In-Sync)指示:物理层测量到任何一个参考信号RLM-RS的SINR高于门限则认定该无线链路保持同步,并上报In-Sync指示。
值得说明的是,在终端发生MCG失败的情况下,终端可以仅执行步骤202、仅执行步骤203或者执行步骤202和步骤203,如图2所示实施例中,以所述终端在发生MCG失败的情况下,执行步骤202或步骤203为例,进行举例说明,在此不构成具体限定。
步骤202、在所述终端被配置至少两个辅小区组SCG的情况下,所述终端确定第一SCG,所述第一SCG用于恢复所述MCG或恢复所述MCG传输,其中,所述至少两个SCG包括所述第一SCG。
在一些实施例中,上述第一SCG用于恢复所述MCG,可以理解为:第一SCG用于发起MCG快速恢复流程,例如:在第一SCG的激活流程中,或者在处于激活态的第一SCG上发送MCG失败信息,以使网络侧设备能够及时的收到MCG失败信息,并根据该MCG失败信息,快速的重配置MCG。
需要说明的是,本申请实施例中的在第一SCG的激活流程中,或者在处于激活态的第一SCG上发送MCG失败信息,与相关技术中的MCG失败信息流程并不相同,具体的,相关技术中终端仅配置1个SCG,而本申请实施例中终端配置有至少两个SCG,此时,终端需要从该至少两个SCG中确定至少一个作为所述第一SCG。
在另一些实施例中,上述第一SCG用于恢复所述MCG传输,可以理解为,在MCG失败时,将MCG上的传输全部或部分分配至第一SCG上进行传输,以克服MCG失败而造成的传输中断。
可选地,所述终端确定第一SCG,包括:
将满足以下至少之一条件的SCG确定为第一SCG:
处于激活态;
与对应网络侧设备保持上行和/或下行同步;
被配置有调度请求(Scheduling Request,SR)资源;
被配置有专有随机接入信道(Physical Random Access Channel,RACH)资源;
满足预定义的无线链路质量要求;
满足预定义的波束质量要求;
满足预定义的频率要求;
使能了MCG快速恢复功能;
与被配置的分离信令无线承载split SRB1相关联;
与被配置的第一SRB关联,其中,所述第一SRB为本SCG所对应的服务网元与所述终端之间的信令无线承载;
允许所述终端直接向本SCG发起SCG激活;
为预先指定的SCG;
为所述至少两个SCG中无线链路质量最高的SCG;
为所述至少两个SCG中波束质量最高的SCG;
为所述至少两个SCG中传输资源最多的SCG;
为所述终端的至少一个分离无线承载的除MCG通道(leg)之外的另一条leg。
需要说明的是,在至少存在两个SCG满足以上条件中的至少一项的情况下,可以进一步选择满足的条件数量最多的SCG作为第一SCG。
选项一
上述与对应网络侧设备保持上行同步的SCG,可以理解为:该SCG的主定时提前组(Primary Timing Advance Group,PTAG)的时间对齐定时器(time alignment timer,TAT)正在运行。
选项二
上述专有RACH资源,可以是任意用途的专有RACH资源,例如:用于波束失败恢复(Beam Failu Rerecovery,BFR)的专有RACH资源;或者是专用于激活SCG的专有RACH资源;
选项三
上述满足预定义的无线链路质量要求,可以包括以下至少一项:
此刻未检测到该SCG的RLF;
在该SCG去激活期间直到此刻一直未发生过该SCG的RLF。
此刻或者过去的一段时间范围内,该SCG的链路质量测量值高于预定义阈值。
选项四
上述满足预定义的波束质量要求,可以包括以下至少一项:
此刻未检测到该SCG的波束失败;
在该SCG去激活期间直到此刻,一直未发生过该SCG的波束失败;
此刻或者过去的一段时间范围内,该SCG的波束测量结果高于预定义阈值。
选项五
上述满足预定义的频率要求,例如:预定义终端在第一频率范围(Frequency Range,FR1)的SCG上发起SCG激活流程,以恢复MCG。
选项六
上述使能了MCG快速恢复功能的条件,可以理解为:若第一SCG被配置了MCG快速恢复功能,而第二SCG未被配置MCG快速恢复功能,则第一SCG满足此条件。或者,在第一SCG和第二SCG都被配置了MCG快速恢复功能,但是第一SCG的MCG快速恢复功能处于启用(enabled)状态,而第二SCG的MCG快速恢复功能处于禁用(disabled)状态,则第一SCG满足此条件。
选项七
上述与被配置的分离信令无线承载split SRB1相关联,可以理解为:满足该条件的SCG为split SRB1的一个通道(leg)。
选项八
上述第一SRB为本SCG所对应的服务网元与所述终端之间的信令无线承载,可以是SRB4或本SCG的SRB3。
选项九
上述预先指定的SCG,可以是网络侧预先指定的某一个或某一些SCG(例 如:默认SCG、主SCG)。
本实施方式中,在终端配置有至少两个SCG的情况下,若终端发生MCG失败,则终端可以基于以上条件,从至少两个SCG中选择合适的第一SCG,以通过选择的第一SCG来恢复MCG或者恢复MCG传输。
进一步地,在所述至少两个SCG中包括至少两个满足以上条件中至少一项的SCG的情况下,所述终端确定第一SCG包括:
所述终端基于预设规则从所述至少两个满足以上条件中至少一项的SCG中选取一个作为所述第一SCG;
其中,所述预设规则包括以下至少一项:
选择满足的条件数量最多的一个SCG作为所述第一SCG;
选择性能最好的一个SCG作为所述第一SCG,例如:第一SCG和第二SCG都符合波束质量要求,但是第一SCG的L1参考信号接收功率(Layer 1Reference Signal Received Power,L1-RSRP)高于第二SCG的,则终端选择第一SCG。
本实施方式中,在利用一个SCG便可以实现恢复MCG配置的情况下,可以从至少两个满足以上条件中至少一项的SCG中选取一个来快速恢复MCG。
当然,若终端找不到任何一个满足以上条件中至少一项的SCG时,终端可以发起RRC重建流程,在此不再赘述。
作为一种可选的实施方式,在所述终端确定第一SCG之后,所述方法还包括:
若所述第一SCG处于去激活态,所述终端发起所述第一SCG的激活流程。
相关协议中引入了SCG激活/去激活机制。即当SCG上没有需要传输的数据或者终端当前过热或者出于省电的目的,网络侧设备和终端可以发起SCG去激活流程。当这些条件有所改变时,网络侧设备和终端可以再发起SCG激活流程。由于SCG去激活期间,终端不监听SCG上的物理下行控制信道(Physical downlink control channel,PDCCH),也没有物理上行共享信道(Physical Uplink Shared Channel,PUSCH)、测参考信号(Sounding Reference  Signal,SRS)传输等行为,终端在这期间可以较为省电的方式工作。此外,在此期间终端还可能执行SCG的无线资源管理(Radio Resource Management,RRM)测量、无线链路监测(Radio Link Monitoring,RLM)测量,从而尽量保证在激活SCG时SCG是质量良好的。
本实施方式中,终端确定的用来恢复MCG配置或者恢复MCG传输的第一SCG处于去激活态时,可以发起所述第一SCG的激活流程,以激活第一SCG,并基于第一SCG的激活流程或被激活的第一SCG来恢复MCG配置。
在实施中,在终端发生MCG失败时,可以生成MCG失败信息,并基于该MCG失败信息触发第一SCG的激活流程,例如:在终端发生MCG失败时,生成MCG失败信息;所述终端通过无线资源控制RRC层向低层协议层(lower layer)传输所述MCG失败信息,以触发对所述第一SCG的激活流程。在另一实施例中,UE也可以先发起第一SCG的激活流程,然后在第一SCG激活流程中生成MCG失败信息或者在第一SCG被激活后,生成MCG失败信息并发送MCG失败信息。
可选地,所述终端发起所述第一SCG的激活流程,包括:
所述终端向网络侧设备发送SCG激活请求,请求激活所述第一SCG;或者所述终端自行将所述第一SCG置为激活态。
其中,在终端被允许直接向所述第一SCG发起SCG激活流程的情况下,所述终端可以自行将所述第一SCG置为激活态;可选地,UE自行将所述第一SCG置为激活态,并向网络侧指示第一SCG已处于激活态。相应的,在所述终端不被允许直接向所述第一SCG发起SCG激活流程的情况下,所述终端可以向网络侧设备发送SCG激活请求,以请求激活所述第一SCG。
需要说明的是,在实际应用中,还可能存在第一SCG激活失败的情况,例如:未接收到网络侧对第一SCG的激活请求的响应,或者终端在第一SCG上发生随机接入失败。此时,可以发起RRC重建流程,或者选择其他SCG来快速恢复MCG。相应的,若终端在所述第一SCG上收到了下行调度或者被分配了传输资源,则确定所述第一SCG被成功激活,或者若终端收到了SCG激活命令,也可以确定所述第一SCG被成功激活。
所述终端向网络侧设备发送SCG激活请求,请求激活所述第一SCG。其 中,网络侧设备可以是MN,也可以是SN,也可以是第一SCG对应的服务网元。也即意味着,终端可以通过MCG向MN发送第一SCG的SCG激活请求(例如通过UE辅助信息),或者在第一SCG上发送第一SCG的SCG激活请求。此外,除了在第一SCG上发送第一SCG的SCG激活请求,终端还可以在第一SCG上发送随机而接入或者调度请求或者任意上行信令或数据,这些行为也可以看做是用于请求激活所述第一SCG。
可选地,所述方法还包括:
在第一时机到达时,所述终端启动MCG快速恢复定时器T316或第一定时器,其中,所述第一定时器用于所述终端在至少两个SCG上尝试恢复MCG;
所述第一时机包括:所述终端生成MCG失败信息的时机、所述终端发送MCG失败信息的时机、所述终端发起MCG快速恢复流程的时机、所述终端发起所述第一SCG的激活流程的时机、所述终端生成所述第一SCG的激活请求的时机、所述终端发送所述第一SCG的激活请求的时机或者所述终端发起所述SCG转换流程(SCG Switching)的时机。
在实施中,上述T316或第一定时器用于限定MCG恢复流程的时长,该T316的时长或者第一定时器的时长可以根据实际应用场景进行设置,在此不作具体限定。
其中,在T316超时的情况下,可以发起RRC重建;在第一定时器超时的情况下,终端可以选择除了第一SCG以外的另一个SCG来恢复所述MCG,以避免因第一SCG不可用,造成不必要的等待时长。
可选实施方式一
在所述终端启动所述T316的情况下,所述方法还包括:
在所述T316运行期间,若以下事件中至少一项发生且所述T316的剩余时长超过预设时长,则所述终端从所述至少两个SCG中确定第三SCG来恢复所述MCG:
所述第一SCG激活失败;
所述终端接收到所述第一SCG的去激活命令;
所述终端接收到网络侧对所述第一SCG激活流程的拒绝响应;
所述第一SCG发生失败。
在具体实施中,上述T316的剩余时长超过预设时长,可以理解为:T316的剩余时长可以允许终端通过其他SCG来恢复MCG。这样,若第一SCG不可用(例如:第一SCG激活失败、网络侧指示将第一SCG去激活或者网络侧拒绝终端激活第一SCG的请求等),且T316的剩余时长超过预设时长,则终端可以确定除了第一SCG以外的其他SCG来恢复所述MCG。
值得指出的是,上述利用第三SCG来恢复所述MCG的过程与利用第一SCG来恢复MCG的过程相同,在此不再赘述。
可选实施方式二
在所述终端启动所述第一定时器的情况下,所述方法还包括以下至少一项:
在所述第一定时器超时后,所述终端从所述至少两个SCG中确定第三SCG来恢复所述MCG;
所述第一定时器运行期间,若以下事件中至少一项发生,则所述终端停止所述第一定时器:
所述终端接收到所述第一SCG的激活命令;
所述终端接收到网络侧对所述第一SCG激活流程的接受响应;
所述第一SCG激活成功;
所述第一定时器运行期间,若以下事件中至少一项发生,则所述终端确定所述第一定时器超时:
所述终端接收到第一SCG的去激活命令;
所述终端接收到网络侧对所述第一SCG激活流程的拒绝响应;
所述第一SCG激活失败。
其中,上述网络侧对所述第一SCG激活流程的接受响,可以理解为以下至少一项:网络侧调度终端进行上行和/或下行传输、网络侧给终端分配了上行和/或下行传输的资源、接受第一SCG激活流程的接受(accept)指示。
本实施方式中,考虑到在发起第一SCG的激活流程后,第一SCG不一定激活成功,且网络侧设备也不一定立即响应SCG激活流程,此时,在等待一定时长后,若仍然不能够确定第一SCG能够成功激活,则可以尝试寻找另一个SCG来恢复MCG。
进一步地,所述终端从所述至少两个SCG中确定第三SCG来恢复所述MCG,包括:
将除了所述第一SCG之外,且满足以下至少之一条件的SCG确定为第三SCG:
为除了所述第一SCG之外的唯一SCG;
处于激活态;
与对应网络侧设备保持上行和/或下行同步;
被配置有调度请求SR资源;
被配置有专有随机接入信道RACH资源;
满足预定义的无线链路质量要求;
满足预定义的波束质量要求;
满足预定义的频率要求;
使能了MCG快速恢复功能;
与被配置的分离信令无线承载split SRB1相关联;
与被配置的第一SRB关联,其中,所述第一SRB为所述SCG所对应的服务网元与所述终端之间的信令无线承载;
允许所述终端直接向本SCG发起SCG激活;
为预先指定的SCG;
为所述终端的至少一个分离无线承载的除MCG通道leg之外的另一条leg。
以上确定第三SCG的方式与确定第一SCG的方式相似,在此不再赘述。
更进一步地,所述终端从所述至少两个SCG中确定第三SCG来恢复所述MCG,还包括:
在所述第三SCG的激活流程中或在所述第三SCG被激活后,所述终端发送所述第一SCG的失败信息(SCG failure information),其中,所述第一SCG的失败信息对应的失败类型包括:RACH失败(RACH failure)或者SCG激活失败(SCG activation failure)或者其他失败(other)。
需要说明的是,上述利用第三SCG来恢复所述MCG的过程与利用所述第一SCG恢复所述MCG的过程相似,且上述第一SCG的失败信息可以与 MCG失败信息一同发送,在此不做赘述。
本实施方式中,在所述第三SCG的激活流程中或在所述第三SCG被激活后,所述终端发送所述第一SCG的失败信息,可以使网络侧设备基于接收到所述第一SCG的失败信息的失败类型而执行相应的操作,例如:恢复所述第一SCG、重配置所述SCG等。
在实施中,在发起第一SCG的激活流程的情况下,所述至少两个SCG可能还包括其他处于激活态的第二SCG,则终端可以去激活第二SCG,或者挂起第二SCG的传输。
可选地,若所述至少两个SCG还包括其他处于激活态的第二SCG,则所述方法还包括以下至少一项:
所述终端发起所述第二SCG的去激活流程;
所述终端挂起所述第二SCG的传输;
所述终端发起SCG转换流程(SCG Switching),所述SCG转换流程用于将所述第二SCG去激活并且将所述第一SCG激活。
在实施中,上述第一SCG可以是比第二SCG更适合用来恢复MCG的SCG。例如:第一SCG和第二SCG满足以下条件中的至少一项:
第一SCG相较于第二SCG具有更高的无线链路质量;
第一SCG相较于第二SCG具有更高的波束质量;
第一SCG相较于第二SCG具有更多的传输资源;
第一SCG使能了MCG快速恢复功能而第二SCG没有;
第一SCG为终端的至少一个分离无线承载(split radio bearer)的除MCG leg以外的另外一条leg;例如,MN给终端配置了多个split DRB,每个DRB具有2个leg,分别为MCG和第一SCG,则当MCG失败时,UE可以激活第一SCG,从而可以在第一SCG上传输MCG的数据,从而减少MCG数据传输中断;
终端被允许直接向第一SCG发起SCG激活,但是不被允许直接向第二SCG发起SCG激活;
第一SCG为预设的SCG,例如:第一SCG为主(primary)SCG或者默认(default)SCG。
上述终端发起SCG转换流程,可以理解为:通过一个流程,实现将所述第二SCG去激活,并将所述第一SCG激活。
可选地,在终端发起SCG转换流程的情况下,一旦发起所述第一SCG的激活流程,所述终端挂起所有SRB和DRB在所述第二SCG上的传输。
在实施中,终端可以通过以下方式实现发起所述第二SCG的去激活流程:
所述终端向网络侧设备发送SCG去激活请求,请求去激活所述第二SCG;或者所述终端自行将所述第二SCG置为去激活态。
其中,在所述终端被允许在本地去激活SCG的情况下,终端可以自行将所述第二SCG置为去激活态。在所述终端不被允许在本地去激活SCG的情况下,所述终端可以向网络侧设备发送SCG去激活请求,以请求去激活所述第二SCG。网络侧设备可以根据SCG激活/去激活相关的策略确定对接收到的SCG去激活请求的响应,该响应可以是向所述终端发送SCG去激活命令,相应的,在终端向网络侧设备发送SCG去激活请求后,若接收到所述网络侧设备发送的SCG去激活命令,则所述终端可以基于所述SCG去激活命令去激活第二SCG。
但是,实际应用中,可能存在第二SCG去激活失败的情况,例如:所述终端不被允许在本地去激活SCG,或者终端在向网络侧设备发送SCG去激活请求后的预设时间内,未接收到SCG去激活命令。
此时,若终端发起了第一SCG的激活流程或者第一SCG已经进入激活态,则终端可以挂起所述第二SCG的传输,即不在该第二SCG上收发数据;或者,终端在向网络侧设备发送SCG去激活请求后,若所述终端在预设时间长度内未接收到所述第二SCG的去激活命令,则所述终端自行将所述第二SCG置为去激活态。
需要说明的是,终端可以在请求激活第一SCG的过程中,向网络侧请求去激活第二SCG;或者终端也可以在请求激活第一SCG之前,自行将所述第二SCG去激活,在此并不限定终端激活第一SCG和去激活第二SCG的顺序。
可选地,所述终端发起所述第二SCG的去激活流程,包括:
若所述第二SCG去激活失败,则所述终端挂起所述第二SCG的传输;
或者,
若所述终端在预设时间长度内未接收到所述第二SCG的去激活命令,则所述终端自行将所述第二SCG置为去激活态。
在实施中,终端在向网络侧请求去激活第二SCG的情况下,若所述终端在预设时间长度内未接收到所述第二SCG的去激活命令,则不再等待网络侧的去激活命令,而是自行将第二SCG置为去激活态,以缩短去激活第二SCG的时长;另外,终端也可以让第二SCG可以保持在激活态但是挂起所述第二SCG的传输,以使第一SCG能够成功激活。
本实施方式中,若终端包括处于激活态的SCG和处于去激活态的SCG,且终端确定处于去激活态的SCG为第一SCG时,终端可以将原本处于激活态的第二SCG去激活,或者挂起第二SCG的传输,或者发起SCG转换流程,以使终端能够利用第一SCG来恢复MCG。
作为一种可选的实施方式,所述终端确定第一SCG,所述第一SCG用于恢复所述MCG传输,包括:
在所述终端的至少一个SCG满足以下条件中的至少一项的情况下,所述终端从其他SCG中确定所述第一SCG:
处于激活态;
所述终端正在执行本SCG的激活流程;
所述终端确定使用本SCG来上报所述MCG的失败信息。
本实施方式与上一实施方式的不同之处在于,本实施方式中,可以有至少两个SCG处于激活状态,例如:终端已有处于激活态的一个SCG,终端发起另一SCG的激活流程,或者终端接连发起至少两个SCG的激活流程等,以利用至少两个SCG来恢复所述MCG传输,例如:利用至少两个SCG来恢复MCG传输,这样,在MCG恢复配置的过程中,也可以不中断MCG传输。
在具体实施中,上述确定第一SCG的方式可以与上一可选的实施方式中确定第一SCG的方式相同,在此不再赘述。
可选地,所述第一SCG为所述终端的分离无线承载的除MCG leg之外的其他leg。
例如,Split SRB1对应有3个leg,分别为MCG、第一SCG、第二SCG。那么当MCG失败时,UE可以激活第一SCG和第二SCG来传输split SRB1 的数据和/或发送MCG失败信息。
可选地,所述第一SCG也可以为所述终端的分离无线承载的除目标SCG leg之外的其他leg。所述目标SCG leg为当前处于激活态的SCG。例如,split SRB1对应有2个leg,分别为MCG、第一SCG,Split SRB3对应有2个leg,分别为第一SCG、第二SCG。当MCG失败时,若第一SCG处于激活态,UE可以发起第二SCG的激活流程,则当第二SCG被激活后,部分MCG上本应该传输的数据被分摊到第一SCG上进行传输,而第一SCG上本应该传输的全部或部分Split SRB3数据可以通过第二SCG进行传输,从而可以同时保证MCG和SCG的传输都不发生中断。
可选地,在所述终端确定第一SCG之后,若所述第一SCG处于去激活状态,则所述终端可以发起所述第一SCG的激活流程。
上述终端可以发起所述第一SCG的激活流程的过程与上一实施方式中,终端发起第一SCG的激活流程的过程相同,在此不再赘述。
本实施方式中,在第一SCG成功激活后,UE可以利用第一SCG和已经激活的其他SCG共同恢复MCG传输。
需要说明的是,在MCG恢复配置后,终端可以将上述第一SCG去激活。
例如:若终端收到了MCG重配消息,则终端将第二SCG去激活并重配MCG。
步骤203、将第一小区组配置应用于所述MCG,所述第一小区组配置用于配置SCG。
本步骤中通过将用于配置SCG的第一小区组配置应用于所述MCG,可以实现MCG的快速重配,达到加快利用重配的MCG进行MCG传输的效果。
可选地,所述第一小区组配置包括以下至少一项:
SCG配置;
候选主辅小区(Primary Secondary Cell,PSCell)所对应的小区组配置,所述候选PSCell为符合条件主辅小区切换(Conditionous PSCell Change,CPC)执行条件的PSCell;
公共小区组配置,所述公共小区组配置用于配置所述终端的MCG和至少一个SCG。
选项一
对于SCG配置,其可以是终端的任一SCG的配置,在终端配置有至少两个SCG的情况下,终端可以从中选择一个SCG,并将该SCG的配置应用于所述终端的MCG。且上述SCG配置可以是如以上实施方式中的第一SCG的配置。
选项二
在实施中,每个小区组都包含一个特殊小区(Special Cell,SpCell)和一系列辅小区(Secondary Cell,SCell)。MCG中的特殊小区称为主小区(Primary Cell,PCell),SCG中特殊小区称为主辅小区(Primary Secondary Cell,PSCell)。对于符合条件主辅小区切换CPC执行条件的候选PSCell,其可以用于配置主小区组或者配置辅小区组,在哪些时刻用于配置哪个小区组可以由协议约定或者网络侧配置决定。
选项三
对于公共小区组配置可以用于配置终端的MCG和第四SCG,但是,同一时间,该公共小区组配置仅可以应用于MCG和第四SCG中的一个。例如,网络侧在配置第四SCG时,可以指示此时将公共小区组配置应用于第四SCG。之后当终端发生MCG失败时,终端可以将公共小区组配置(即应用于第四SCG的配置)应用于MCG。
可选地,所述将第一小区组配置应用于所述MCG,包括:
在所述终端接收到第一指示信息的情况下,所述终端将所述第一小区组配置为MCG,其中,所述第一指示信息用于指示在所述终端发生MCG失败的情况下将所述第一小区组配置为所述MCG。
在实施中,上述第一指示信息可以是预配置的指示信息,这样,在所述终端发生MCG失败的情况下,无需等待网络侧设备的指示,便可以直接将所述第一小区组配置为所述MCG。
当然,在实施中,还可以通过其他方式实现将第一小区组配置为MCG,例如:请求网络侧设备将第一小区组配置为所述MCG,在此不作具体限定。
可选地,所述方法还包括以下至少一项:
所述终端挂起所述第一小区组的传输;
在将所述第一小区组配置为所述MCG之前,所述终端删除MCG配置;
在将所述第一小区组配置为所述MCG之后,所述终端释放或者重配所述第一小区组。
在具体实施中,所述第一小区组可能是处于激活态的SCG,该SCG也可能有正在执行的传输,本实施方式中,可以挂起该SCG上的传输,以在该SCG的配置应用于MCG后,执行MCG传输。
另外,在第一小区组的配置应用于MCG后,可以释放或者重配所述第一小区组,其具体取决于:是否有预配置好的SCG释放指示或第一小区组的候选配置,或者是否有其他处于激活态的SCG。
可选地,在所述至少两个SCG包括处于激活状态的其他SCG,和/或,所述终端预先配置有SCG释放指示的情况下,所述终端释放所述第一小区组;
在所述至少两个SCG不包括处于激活状态的其他SCG,和/或,预先配置有所述第一小区组的候选配置的情况下,所述终端重配置所述第一小区组。
假设所述第一小区组为第四SCG,若终端还包括处于激活状态的其他SCG,则终端可以释放所述第四SCG;或者,在终端未预先配置有所述第四SCG的候选配置的情况下,若终端还包括处于激活状态的其他SCG,则终端可以释放所述第四SCG;或者,在终端预先配置有在同时存在两个SCG时,释放其中一个SCG的释放指示的情况下,若终端还包括处于激活状态的其他SCG,则终端可以释放所述第四SCG;
相应的,若终端不包括除了第四SCG以外的处于激活状态的其他SCG,或者预配置了第四SCG的候选配置的情况下,终端可以配置所述第四SCG。
本实施方式中,在将第一小区组的配置应用于MCG后,可以根据配置情况,确定释放所述第一小区组还是重配所述第一小区组。
可选地,在将所述第一小区组配置为所述MCG之后,所述方法还包括:
所述终端向网络侧设备发送第二指示信息,其中,所述第二指示信息用于指示所述第一小区组被重配为MCG。
本实施方式中,终端在将第一小区组的配置应用于MCG后,可以告知网络侧设备所述第一小区组被重配为MCG,以使网络侧设备据此进行资源分配等后续处理。
在本申请实施例中,若终端发生MCG失败,所述终端执行:在所述终端被配置至少两个辅小区组SCG的情况下,所述终端确定第一SCG,所述第一SCG用于恢复所述MCG或恢复所述MCG传输,其中,所述至少两个SCG包括所述第一SCG;和/或,将第一小区组配置应用于所述MCG,所述第一小区组配置用于配置SCG。这样,可以利用SCG快速的恢复MCG、利用SCG恢复MCG传输和/或将SCG配置为MCG,以降低因MCG失败而造成的数据传输中断对终端的通信性能的影响。
需要说明的是,本申请实施例提供的MCG恢复方法,执行主体可以为MCG恢复装置,或者,该MCG恢复装置中的用于执行MCG恢复方法的控制模块。本申请实施例中以MCG恢复装置执行MCG恢复方法为例,说明本申请实施例提供的MCG恢复装置。
请参阅图3,本申请实施例提供的MCG恢复装置300,可以包括:
执行模块301,用于若终端发生MCG失败,则执行以下至少一项:
在所述终端被配置至少两个辅小区组SCG的情况下,确定所述终端的第一SCG,所述第一SCG用于恢复所述MCG或恢复所述MCG传输,其中,所述至少两个SCG包括所述第一SCG;
将第一小区组配置应用于所述MCG,所述第一小区组配置用于配置SCG。
可选地,所述执行模块301包括:
第一确定单元,用于将满足以下至少之一条件的SCG确定为第一SCG:
处于激活态;
与对应网络侧设备保持上行和/或下行同步;
被配置有调度请求SR资源;
被配置有专有随机接入信道RACH资源;
满足预定义的无线链路质量要求;
满足预定义的波束质量要求;
满足预定义的频率要求;
使能了MCG快速恢复功能;
与被配置的分离信令无线承载split SRB1相关联;
与被配置的第一SRB关联,其中,所述第一SRB为本SCG所对应的服 务网元与所述终端之间的信令无线承载;
允许所述终端直接向本SCG发起SCG激活;
为预先指定的SCG;
为所述至少两个SCG中无线链路质量最高的SCG;
为所述至少两个SCG中波束质量最高的SCG;
为所述至少两个SCG中传输资源最多的SCG;
为所述终端的至少一个分离无线承载的除MCG通道leg之外的另一条leg。
可选地,MCG恢复装置300还包括:
第一流程发起模块,用于若所述第一SCG处于去激活态,则发起所述第一SCG的激活流程。
可选地,MCG恢复装置300还包括:
第一发送模块,用于在所述第一SCG的激活流程中或所述第一SCG被激活后,发送MCG失败信息。
可选地,若所述至少两个SCG还包括其他处于激活态的第二SCG,则MCG恢复装置300还包括以下至少一项:
第二流程发起模块,用于发起所述第二SCG的去激活流程;
第一传输模块,用于挂起所述第二SCG的传输;
第三流程发起模块,用于发起SCG转换流程,所述SCG转换流程用于将所述第二SCG去激活并且将所述第一SCG激活。
可选地,MCG恢复装置300还包括:
定时模块,用于在第一时机到达时,启动MCG快速恢复定时器T316或第一定时器,其中,所述第一定时器用于所述终端在至少两个SCG上尝试恢复MCG;
所述第一时机包括:所述终端生成MCG失败信息的时机、所述终端发送MCG失败信息的时机、所述终端发起MCG快速恢复流程的时机、所述终端发起所述第一SCG的激活流程的时机、所述终端生成所述第一SCG的激活请求的时机、所述终端发送所述第一SCG的激活请求的时机或者所述终端发起所述SCG转换流程的时机。
可选地,在所述定时模块用于启动所述T316的情况下,MCG恢复装置300还包括:
第一确定模块,用于在所述T316运行期间,若以下事件中至少一项发生且所述T316的剩余时长超过预设时长,则从所述至少两个SCG中确定第三SCG来恢复所述MCG:
所述第一SCG激活失败;
所述终端接收到所述第一SCG的去激活命令;
所述终端接收到网络侧对所述第一SCG激活流程的拒绝响应;
所述第一SCG发生失败。
可选地,在所述定时模块用于启动所述第一定时器的情况下,MCG恢复装置300还包括以下至少一项:
第二确定模块,用于在所述第一定时器超时后,从所述至少两个SCG中确定第三SCG来恢复所述MCG;
定时器控制模块,用于在所述第一定时器运行期间,若以下事件中至少一项发生,则停止所述第一定时器:
所述终端接收到所述第一SCG的激活命令;
所述终端接收到网络侧对所述第一SCG激活流程的接受响应;
所述第一SCG激活成功;
第三确定模块,用于在所述第一定时器运行期间,若以下事件中至少一项发生,则确定所述第一定时器超时:
所述终端接收到第一SCG的去激活命令;
所述终端接收到网络侧对所述第一SCG激活流程的拒绝响应;
所述第一SCG激活失败。
可选地,所述第一确定模块或第二确定模块,包括:
第二确定单元,用于将除了所述第一SCG之外,且满足以下至少之一条件的SCG确定为第三SCG:
为除了所述第一SCG之外的唯一SCG;
处于激活态;
与对应网络侧设备保持上行和/或下行同步;
被配置有调度请求SR资源;
被配置有专有随机接入信道RACH资源;
满足预定义的无线链路质量要求;
满足预定义的波束质量要求;
满足预定义的频率要求;
使能了MCG快速恢复功能;
与被配置的分离信令无线承载split SRB1相关联;
与被配置的第一SRB关联,其中,所述第一SRB为所述SCG所对应的服务网元与所述终端之间的信令无线承载;
允许所述终端直接向本SCG发起SCG激活;
为预先指定的SCG;
为所述终端的至少一个分离无线承载的除MCG通道leg之外的另一条leg。
可选地,所述第一确定模块或第二确定模块,还包括:
发送单元,用于在所述第三SCG的激活流程中或在所述第三SCG被激活后,发送所述第一SCG的失败信息,其中,所述第一SCG的失败信息对应的失败类型包括:其他失败或者RACH失败或者SCG激活失败。
可选地,所述第一流程发起模块,具体用于:
向网络侧设备发送SCG激活请求,请求激活所述第一SCG;或者自行将所述第一SCG置为激活态。
可选地,所述第二流程发起模块,具体用于:
向网络侧设备发送SCG去激活请求,请求去激活所述第二SCG;或者自行将所述第二SCG置为去激活态。
可选地,所述第二流程发起模块,具体用于:
若所述第二SCG去激活失败,则挂起所述第二SCG的传输;
或者,
若所述终端在预设时间长度内未接收到所述第二SCG的去激活命令,则自行将所述第二SCG置为去激活态。
可选地,所述第一小区组配置包括以下至少一项:
SCG配置;
候选主辅小区PSCell所对应的小区组配置,所述候选PSCell为符合条件主辅小区切换CPC执行条件的PSCell;
公共小区组配置,所述公共小区组配置用于配置所述终端的MCG和至少一个SCG。
可选地,所述执行模块301,具体用于:
在所述终端接收到第一指示信息的情况下,将所述第一小区组配置为MCG,其中,所述第一指示信息用于指示在所述终端发生MCG失败的情况下将所述第一小区组配置为所述MCG。
可选地,MCG恢复装置300还包括以下至少一项:
第二传输模块,用于挂起所述第一小区组的传输;
删除模块,用于在将所述第一小区组配置为所述MCG之前,删除MCG配置;
配置模块,用于在将所述第一小区组配置为所述MCG之后,释放或者重配所述第一小区组。
可选地,MCG恢复装置300还包括:
第二发送模块,用于向网络侧设备发送第二指示信息,其中,所述第二指示信息用于指示所述第一小区组被重配为MCG。
可选地,在所述至少两个SCG包括处于激活状态的其他SCG,和/或,所述终端预先配置有SCG释放指示的情况下,所述配置模块用于释放所述第一小区组;
在所述至少两个SCG不包括处于激活状态的其他SCG,和/或,预先配置有所述第一小区组的候选配置的情况下,所述配置模块用于重配置所述第一小区组。
可选地,所述执行模块301,包括:
第二确定单元,用于在所述终端的至少一个SCG满足以下条件中的至少一项的情况下,从其他SCG中确定所述第一SCG:
处于激活态;
所述终端正在执行所述SCG的激活流程;
所述终端确定使用所述SCG来上报所述MCG的失败信息。
可选地,所述第一SCG为所述终端的分离无线承载的除MCG leg之外的其他leg。
可选地,MCG恢复装置300还包括:
第四流程发起模块,用于发起所述第一SCG的激活流程。
本申请实施例中的MCG恢复装置可以是装置,具有操作系统的装置或电子设备,也可以是终端中的部件、集成电路、或芯片。该装置或电子设备可以是移动终端,也可以为非移动终端。示例性的,移动终端可以包括但不限于上述所列举的终端11的类型,非移动终端可以为服务器、网络附属存储器(Network Attached Storage,NAS)、个人计算机(personal computer,PC)、电视机(television,TV)、柜员机或者自助机等,本申请实施例不作具体限定。
本申请实施例提供的MCG恢复装置能够实现图2所示的MCG恢复方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
可选地,如图4所示,本申请实施例还提供一种通信设备400,包括处理器401,存储器402,存储在存储器402上并可在所述处理器401上运行的程序或指令,例如,该通信设备400为终端时,该程序或指令被处理器401执行时实现上述MCG恢复方法实施例的各个过程,且能达到相同的技术效果。该通信设备400为网络侧设备时,该程序或指令被处理器401执行时实现上述MCG恢复方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供一种终端,包括处理器和通信接口,处理器用于若终端发生MCG失败,则执行以下至少一项:
在所述终端被配置至少两个辅小区组SCG的情况下,所述终端确定第一SCG,所述第一SCG用于恢复所述MCG或恢复所述MCG传输,其中,所述至少两个SCG包括所述第一SCG;
将第一小区组配置应用于所述MCG,所述第一小区组配置用于配置SCG。
该终端实施例是与上述终端侧方法实施例对应的,上述方法实施例的各 个实施过程和实现方式均可适用于该终端实施例中,且能达到相同的技术效果。具体地,图5为实现本申请实施例的一种终端的硬件结构示意图。
该终端500包括但不限于:射频单元501、网络模块502、音频输出单元503、输入单元504、传感器505、显示单元506、用户输入单元507、接口单元508、存储器509、以及处理器510等中的至少部分部件。
本领域技术人员可以理解,终端500还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理系统与处理器510逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图5中示出的终端结构并不构成对终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置,在此不再赘述。
应理解的是,本申请实施例中,输入单元504可以包括图形处理器(Graphics Processing Unit,GPU)5041和麦克风5042,图形处理器5041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元506可包括显示面板5061,可以采用液晶显示器、有机发光二极管等形式来配置显示面板5061。用户输入单元507包括触控面板5071以及其他输入设备5072。触控面板5071,也称为触摸屏。触控面板5071可包括触摸检测装置和触摸控制器两个部分。其他输入设备5072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
本申请实施例中,射频单元501将来自网络侧设备的下行数据接收后,给处理器510处理;另外,将上行的数据发送给网络侧设备。通常,射频单元501包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器509可用于存储软件程序或指令以及各种数据。存储器509可主要包括存储程序或指令区和存储数据区,其中,存储程序或指令区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器509可以包括高速随机存取存储器,还可以包括非易失性存储器,其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦 除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。
处理器510可包括一个或多个处理单元;可选地,处理器510可集成应用处理器和调制解调处理器,其中,应用处理器主要处理操作系统、用户界面和应用程序或指令等,调制解调处理器主要处理无线通信,如基带处理器。可以理解的是,上述调制解调处理器也可以不集成到处理器510中。
其中,处理器510,用于若终端发生MCG失败,则执行以下至少一项:
在所述终端被配置至少两个辅小区组SCG的情况下,所述终端确定第一SCG,所述第一SCG用于恢复所述MCG或恢复所述MCG传输,其中,所述至少两个SCG包括所述第一SCG;
将第一小区组配置应用于所述MCG,所述第一小区组配置用于配置SCG。
可选地,处理器510执行的所述确定第一SCG,包括:
将满足以下至少之一条件的SCG确定为第一SCG:
处于激活态;
与对应网络侧设备保持上行和/或下行同步;
被配置有调度请求SR资源;
被配置有专有随机接入信道RACH资源;
满足预定义的无线链路质量要求;
满足预定义的波束质量要求;
满足预定义的频率要求;
使能了MCG快速恢复功能;
与被配置的分离信令无线承载split SRB1相关联;
与被配置的第一SRB关联,其中,所述第一SRB为本SCG所对应的服务网元与所述终端之间的信令无线承载;
允许所述终端直接向本SCG发起SCG激活;
为预先指定的SCG;
为所述至少两个SCG中无线链路质量最高的SCG;
为所述至少两个SCG中波束质量最高的SCG;
为所述至少两个SCG中传输资源最多的SCG;
为所述终端的至少一个分离无线承载的除MCG通道leg之外的另一条leg。
可选地,在处理器510确定第一SCG之后,还用于:
若所述第一SCG处于去激活态,则发起所述第一SCG的激活流程。
可选地,在处理器510发起所述第一SCG的激活流程后,射频单元501,用于:
在所述第一SCG的激活流程中或所述第一SCG被激活后,发送MCG失败信息。
可选地,若所述至少两个SCG还包括其他处于激活态的第二SCG,则处理器510还用于执行以下至少一项:
发起所述第二SCG的去激活流程;
挂起所述第二SCG的传输;
发起SCG转换流程,所述SCG转换流程用于将所述第二SCG去激活并且将所述第一SCG激活。
可选地,处理器510还用于:
在第一时机到达时,所述终端启动MCG快速恢复定时器T316或第一定时器,其中,所述第一定时器用于所述终端在至少两个SCG上尝试恢复MCG;
所述第一时机包括:所述终端生成MCG失败信息的时机、所述终端发送MCG失败信息的时机、所述终端发起MCG快速恢复流程的时机、所述终端发起所述第一SCG的激活流程的时机、所述终端生成所述第一SCG的激活请求的时机、所述终端发送所述第一SCG的激活请求的时机或者所述终端发起所述SCG转换流程的时机。
可选地,在处理器510启动所述T316的情况下,处理器510还用于:
在所述T316运行期间,若以下事件中至少一项发生且所述T316的剩余时长超过预设时长,则从所述至少两个SCG中确定第三SCG来恢复所述MCG:
所述第一SCG激活失败;
所述终端接收到所述第一SCG的去激活命令;
所述终端接收到网络侧对所述第一SCG激活流程的拒绝响应;
所述第一SCG发生失败。
可选地,在处理器510启动所述第一定时器的情况下,处理器510还用于执行以下至少一项:
在所述第一定时器超时后,从所述至少两个SCG中确定第三SCG来恢复所述MCG;
所述第一定时器运行期间,若以下事件中至少一项发生,则停止所述第一定时器:
所述终端接收到所述第一SCG的激活命令;
所述终端接收到网络侧对所述第一SCG激活流程的接受响应;
所述第一SCG激活成功;
所述第一定时器运行期间,若以下事件中至少一项发生,则确定所述第一定时器超时:
所述终端接收到第一SCG的去激活命令;
所述终端接收到网络侧对所述第一SCG激活流程的拒绝响应;
所述第一SCG激活失败。
可选地,处理器510执行的所述终端从所述至少两个SCG中确定第三SCG来恢复所述MCG,包括:
将除了所述第一SCG之外,且满足以下至少之一条件的SCG确定为第三SCG:
为除了所述第一SCG之外的唯一SCG;
处于激活态;
与对应网络侧设备保持上行和/或下行同步;
被配置有调度请求SR资源;
被配置有专有随机接入信道RACH资源;
满足预定义的无线链路质量要求;
满足预定义的波束质量要求;
满足预定义的频率要求;
使能了MCG快速恢复功能;
与被配置的分离信令无线承载split SRB1相关联;
与被配置的第一SRB关联,其中,所述第一SRB为所述SCG所对应的服务网元与所述终端之间的信令无线承载;
允许所述终端直接向本SCG发起SCG激活;
为预先指定的SCG;
为所述终端的至少一个分离无线承载的除MCG通道leg之外的另一条leg。
可选地,处理器510执行的所述从所述至少两个SCG中确定第三SCG来恢复所述MCG,还包括:
在所述第三SCG的激活流程中或在所述第三SCG被激活后,所述终端发送所述第一SCG的失败信息,其中,所述第一SCG的失败信息对应的失败类型包括:其他失败或者RACH失败或者SCG激活失败。
可选地,处理器510执行的发起所述第一SCG的激活流程,包括:
所述终端向网络侧设备发送SCG激活请求,请求激活所述第一SCG;或者所述终端自行将所述第一SCG置为激活态。
可选地,处理器510执行的发起所述第二SCG的去激活流程,包括:
所述终端向网络侧设备发送SCG去激活请求,请求去激活所述第二SCG;或者所述终端自行将所述第二SCG置为去激活态。
可选地,处理器510执行的发起所述第二SCG的去激活流程,包括:
若所述第二SCG去激活失败,则所述终端挂起所述第二SCG的传输;
或者,
若所述终端在预设时间长度内未接收到所述第二SCG的去激活命令,则所述终端自行将所述第二SCG置为去激活态。
可选地,所述第一小区组配置包括以下至少一项:
SCG配置;
候选主辅小区PSCell所对应的小区组配置,所述候选PSCell为符合条件主辅小区切换CPC执行条件的PSCell;
公共小区组配置,所述公共小区组配置用于配置所述终端的MCG和至少一个SCG。
可选地,处理器510执行的所述将第一小区组配置应用于所述MCG,包括:
在所述终端接收到第一指示信息的情况下,处理器510将所述第一小区组配置为MCG,其中,所述第一指示信息用于指示在所述终端发生MCG失败的情况下将所述第一小区组配置为所述MCG。
可选地,处理器510还用于执行以下至少一项:
挂起所述第一小区组的传输;
在将所述第一小区组配置为所述MCG之前,删除MCG配置;
在将所述第一小区组配置为所述MCG之后,释放或者重配所述第一小区组。
可选地,在处理器510执行所述将所述第一小区组配置为所述MCG之后,射频单元501,还用于:
向网络侧设备发送第二指示信息,其中,所述第二指示信息用于指示所述第一小区组被重配为MCG。
可选地,在所述至少两个SCG包括处于激活状态的其他SCG,和/或,所述终端预先配置有SCG释放指示的情况下,处理器510释放所述第一小区组;
在所述至少两个SCG不包括处于激活状态的其他SCG,和/或,预先配置有所述第一小区组的候选配置的情况下,处理器510释放重配置所述第一小区组。
可选地,处理器510执行的所述终端确定第一SCG,所述第一SCG用于恢复所述MCG传输,包括:
在所述终端的至少一个SCG满足以下条件中的至少一项的情况下,处理器510从其他SCG中确定所述第一SCG:
处于激活态;
所述终端正在执行本SCG的激活流程;
所述终端确定使用本SCG来上报所述MCG的失败信息。
可选地,所述第一SCG为所述终端的分离无线承载的除MCG leg之外的其他leg。
可选地,在处理器510确定第一SCG之后,还用于:
发起所述第一SCG的激活流程。
本申请实施例提供的终端500,能够实现如图2所示方法实施例中的各个过程,且能够取得相同的有益效果,为避免重复,在此不再赘述。
本申请实施例还提供一种可读存储介质,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现上述MCG恢复方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等。
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现上述MCG恢复实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序产品,所述计算机程序产品被存储在非易失的存储介质中,所述计算机程序产品被至少一个处理器执行以实现上述方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外,需要指出的是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省 去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。

Claims (48)

  1. 一种主小区组MCG恢复方法,包括:
    若终端发生MCG失败,所述终端执行以下至少一项:
    在所述终端被配置至少两个辅小区组SCG的情况下,所述终端确定第一SCG,所述第一SCG用于恢复所述MCG或恢复所述MCG传输,其中,所述至少两个SCG包括所述第一SCG;
    将第一小区组配置应用于所述MCG,所述第一小区组配置用于配置SCG。
  2. 根据权利要求1所述的方法,其中,所述终端确定第一SCG,包括:
    将满足以下至少之一条件的SCG确定为第一SCG:
    处于激活态;
    与对应网络侧设备保持上行和/或下行同步;
    被配置有调度请求SR资源;
    被配置有专有随机接入信道RACH资源;
    满足预定义的无线链路质量要求;
    满足预定义的波束质量要求;
    满足预定义的频率要求;
    使能了MCG快速恢复功能;
    与被配置的分离信令无线承载split SRB1相关联;
    与被配置的第一SRB关联,其中,所述第一SRB为本SCG所对应的服务网元与所述终端之间的信令无线承载;
    允许所述终端直接向本SCG发起SCG激活;
    为预先指定的SCG;
    为所述至少两个SCG中无线链路质量最高的SCG;
    为所述至少两个SCG中波束质量最高的SCG;
    为所述至少两个SCG中传输资源最多的SCG;
    为所述终端的至少一个分离无线承载的除MCG通道leg之外的另一条leg。
  3. 根据权利要求1所述的方法,其中,在所述终端确定第一SCG之后, 所述方法还包括:
    若所述第一SCG处于去激活态,所述终端发起所述第一SCG的激活流程。
  4. 根据权利要求3所述的方法,其中,在所述终端发起所述第一SCG的激活流程后,所述方法还包括:
    在所述第一SCG的激活流程中或所述第一SCG被激活后,所述终端发送MCG失败信息。
  5. 根据权利要求3所述的方法,其中,若所述至少两个SCG还包括其他处于激活态的第二SCG,则所述方法还包括以下至少一项:
    所述终端发起所述第二SCG的去激活流程;
    所述终端挂起所述第二SCG的传输;
    所述终端发起SCG转换流程,所述SCG转换流程用于将所述第二SCG去激活并且将所述第一SCG激活。
  6. 根据权利要求3所述的方法,所述方法还包括:
    在第一时机到达时,所述终端启动MCG快速恢复定时器T316或第一定时器,其中,所述第一定时器用于所述终端在至少两个SCG上尝试恢复MCG;
    所述第一时机包括:所述终端生成MCG失败信息的时机、所述终端发送MCG失败信息的时机、所述终端发起MCG快速恢复流程的时机、所述终端发起所述第一SCG的激活流程的时机、所述终端生成所述第一SCG的激活请求的时机、所述终端发送所述第一SCG的激活请求的时机或者所述终端发起所述SCG转换流程的时机。
  7. 根据权利要求6所述的方法,其中,在所述终端启动所述T316的情况下,所述方法还包括:
    在所述T316运行期间,若以下事件中至少一项发生且所述T316的剩余时长超过预设时长,则所述终端从所述至少两个SCG中确定第三SCG来恢复所述MCG:
    所述第一SCG激活失败;
    所述终端接收到所述第一SCG的去激活命令;
    所述终端接收到网络侧对所述第一SCG激活流程的拒绝响应;
    所述第一SCG发生失败。
  8. 根据权利要求6所述的方法,其中,在所述终端启动所述第一定时器的情况下,所述方法还包括以下至少一项:
    在所述第一定时器超时后,所述终端从所述至少两个SCG中确定第三SCG来恢复所述MCG;
    所述第一定时器运行期间,若以下事件中至少一项发生,则所述终端停止所述第一定时器:
    所述终端接收到所述第一SCG的激活命令;
    所述终端接收到网络侧对所述第一SCG激活流程的接受响应;
    所述第一SCG激活成功;
    所述第一定时器运行期间,若以下事件中至少一项发生,则所述终端确定所述第一定时器超时:
    所述终端接收到第一SCG的去激活命令;
    所述终端接收到网络侧对所述第一SCG激活流程的拒绝响应;
    所述第一SCG激活失败。
  9. 根据权利要求7或8所述的方法,其中,所述终端从所述至少两个SCG中确定第三SCG来恢复所述MCG,包括:
    将除了所述第一SCG之外,且满足以下至少之一条件的SCG确定为第三SCG:
    为除了所述第一SCG之外的唯一SCG;
    处于激活态;
    与对应网络侧设备保持上行和/或下行同步;
    被配置有调度请求SR资源;
    被配置有专有随机接入信道RACH资源;
    满足预定义的无线链路质量要求;
    满足预定义的波束质量要求;
    满足预定义的频率要求;
    使能了MCG快速恢复功能;
    与被配置的分离信令无线承载split SRB1相关联;
    与被配置的第一SRB关联,其中,所述第一SRB为所述SCG所对应的服务网元与所述终端之间的信令无线承载;
    允许所述终端直接向本SCG发起SCG激活;
    为预先指定的SCG;
    为所述终端的至少一个分离无线承载的除MCG通道leg之外的另一条leg。
  10. 根据权利要求9所述的方法,其中,所述终端从所述至少两个SCG中确定第三SCG来恢复所述MCG,还包括:
    在所述第三SCG的激活流程中或在所述第三SCG被激活后,所述终端发送所述第一SCG的失败信息,其中,所述第一SCG的失败信息对应的失败类型包括:其他失败或者RACH失败或者SCG激活失败。
  11. 根据权利要求3所述的方法,其中,所述终端发起所述第一SCG的激活流程,包括:
    所述终端向网络侧设备发送SCG激活请求,请求激活所述第一SCG;或者所述终端自行将所述第一SCG置为激活态。
  12. 根据权利要求5所述的方法,其中,所述终端发起所述第二SCG的去激活流程,包括:
    所述终端向网络侧设备发送SCG去激活请求,请求去激活所述第二SCG;或者所述终端自行将所述第二SCG置为去激活态。
  13. 根据权利要求5所述的方法,其中,所述终端发起所述第二SCG的去激活流程,包括:
    若所述第二SCG去激活失败,则所述终端挂起所述第二SCG的传输;
    或者,
    若所述终端在预设时间长度内未接收到所述第二SCG的去激活命令,则所述终端自行将所述第二SCG置为去激活态。
  14. 根据权利要求1所述的方法,其中,所述第一小区组配置包括以下至少一项:
    SCG配置;
    候选主辅小区PSCell所对应的小区组配置,所述候选PSCell为符合条件 主辅小区切换CPC执行条件的PSCell;
    公共小区组配置,所述公共小区组配置用于配置所述终端的MCG和至少一个SCG。
  15. 根据权利要求14所述的方法,其中,所述将第一小区组配置应用于所述MCG,包括:
    在所述终端接收到第一指示信息的情况下,所述终端将所述第一小区组配置为MCG,其中,所述第一指示信息用于指示在所述终端发生MCG失败的情况下将所述第一小区组配置为所述MCG。
  16. 根据权利要求14所述的方法,所述方法还包括以下至少一项:
    所述终端挂起所述第一小区组的传输;
    在将所述第一小区组配置为所述MCG之前,所述终端删除MCG配置;
    在将所述第一小区组配置为所述MCG之后,所述终端释放或者重配所述第一小区组。
  17. 根据权利要求16所述的方法,其中,在将所述第一小区组配置为所述MCG之后,所述方法还包括:
    所述终端向网络侧设备发送第二指示信息,其中,所述第二指示信息用于指示所述第一小区组被重配为MCG。
  18. 根据权利要求16所述的方法,其中,在所述至少两个SCG包括处于激活状态的其他SCG,和/或,所述终端预先配置有SCG释放指示的情况下,所述终端释放所述第一小区组;
    在所述至少两个SCG不包括处于激活状态的其他SCG,和/或,预先配置有所述第一小区组的候选配置的情况下,所述终端重配置所述第一小区组。
  19. 根据权利要求1所述的方法,其中,所述终端确定第一SCG,所述第一SCG用于恢复所述MCG传输,包括:
    在所述终端的至少一个SCG满足以下条件中的至少一项的情况下,所述终端从其他SCG中确定所述第一SCG:
    处于激活态;
    所述终端正在执行本SCG的激活流程;
    所述终端确定使用本SCG来上报所述MCG的失败信息。
  20. 根据权利要求19所述的方法,其中,所述第一SCG为所述终端的分离无线承载的除MCG leg之外的其他leg。
  21. 根据权利要求19所述的方法,其中,在所述终端确定第一SCG之后,所述方法还包括:
    所述终端发起所述第一SCG的激活流程。
  22. 一种主小区组MCG恢复装置,包括:
    执行模块,用于若终端发生MCG失败,则执行以下至少一项:
    在所述终端被配置至少两个辅小区组SCG的情况下,确定所述终端的第一SCG,所述第一SCG用于恢复所述MCG或恢复所述MCG传输,其中,所述至少两个SCG包括所述第一SCG;
    将第一小区组配置应用于所述MCG,所述第一小区组配置用于配置SCG。
  23. 根据权利要求22所述的装置,其中,所述执行模块包括:
    第一确定单元,用于将满足以下至少之一条件的SCG确定为第一SCG:
    处于激活态;
    与对应网络侧设备保持上行和/或下行同步;
    被配置有调度请求SR资源;
    被配置有专有随机接入信道RACH资源;
    满足预定义的无线链路质量要求;
    满足预定义的波束质量要求;
    满足预定义的频率要求;
    使能了MCG快速恢复功能;
    与被配置的分离信令无线承载split SRB1相关联;
    与被配置的第一SRB关联,其中,所述第一SRB为本SCG所对应的服务网元与所述终端之间的信令无线承载;
    允许所述终端直接向本SCG发起SCG激活;
    为预先指定的SCG;
    为所述至少两个SCG中无线链路质量最高的SCG;
    为所述至少两个SCG中波束质量最高的SCG;
    为所述至少两个SCG中传输资源最多的SCG;
    为所述终端的至少一个分离无线承载的除MCG通道leg之外的另一条leg。
  24. 根据权利要求22所述的装置,还包括:
    第一流程发起模块,用于若所述第一SCG处于去激活态,则发起所述第一SCG的激活流程。
  25. 根据权利要求24所述的装置,还包括:
    第一发送模块,用于在所述第一SCG的激活流程中或所述第一SCG被激活后,发送MCG失败信息。
  26. 根据权利要求24所述的装置,其中,若所述至少两个SCG还包括其他处于激活态的第二SCG,则所述装置还包括以下至少一项:
    第二流程发起模块,用于发起所述第二SCG的去激活流程;
    第一传输模块,用于挂起所述第二SCG的传输;
    第三流程发起模块,用于发起SCG转换流程,所述SCG转换流程用于将所述第二SCG去激活并且将所述第一SCG激活。
  27. 根据权利要求24所述的装置,还包括:
    定时模块,用于在第一时机到达时,启动MCG快速恢复定时器T316或第一定时器,其中,所述第一定时器用于所述终端在至少两个SCG上尝试恢复MCG;
    所述第一时机包括:所述终端生成MCG失败信息的时机、所述终端发送MCG失败信息的时机、所述终端发起MCG快速恢复流程的时机、所述终端发起所述第一SCG的激活流程的时机、所述终端生成所述第一SCG的激活请求的时机、所述终端发送所述第一SCG的激活请求的时机或者所述终端发起所述SCG转换流程的时机。
  28. 根据权利要求27所述的装置,其中,在所述定时模块用于启动所述T316的情况下,所述装置还包括:
    第一确定模块,用于在所述T316运行期间,若以下事件中至少一项发生且所述T316的剩余时长超过预设时长,则从所述至少两个SCG中确定第三SCG来恢复所述MCG:
    所述第一SCG激活失败;
    所述终端接收到所述第一SCG的去激活命令;
    所述终端接收到网络侧对所述第一SCG激活流程的拒绝响应;
    所述第一SCG发生失败。
  29. 根据权利要求27所述的装置,其中,在所述定时模块用于启动所述第一定时器的情况下,所述装置还包括以下至少一项:
    第二确定模块,用于在所述第一定时器超时后,从所述至少两个SCG中确定第三SCG来恢复所述MCG;
    定时器控制模块,用于在所述第一定时器运行期间,若以下事件中至少一项发生,则停止所述第一定时器:
    所述终端接收到所述第一SCG的激活命令;
    所述终端接收到网络侧对所述第一SCG激活流程的接受响应;
    所述第一SCG激活成功;
    第三确定模块,用于在所述第一定时器运行期间,若以下事件中至少一项发生,则确定所述第一定时器超时:
    所述终端接收到第一SCG的去激活命令;
    所述终端接收到网络侧对所述第一SCG激活流程的拒绝响应;
    所述第一SCG激活失败。
  30. 根据权利要求28或29所述的装置,其中,第一确定模块或第二确定模块,包括:
    第二确定单元,用于将除了所述第一SCG之外,且满足以下至少之一条件的SCG确定为第三SCG:
    为除了所述第一SCG之外的唯一SCG;
    处于激活态;
    与对应网络侧设备保持上行和/或下行同步;
    被配置有调度请求SR资源;
    被配置有专有随机接入信道RACH资源;
    满足预定义的无线链路质量要求;
    满足预定义的波束质量要求;
    满足预定义的频率要求;
    使能了MCG快速恢复功能;
    与被配置的分离信令无线承载split SRB1相关联;
    与被配置的第一SRB关联,其中,所述第一SRB为所述SCG所对应的服务网元与所述终端之间的信令无线承载;
    允许所述终端直接向本SCG发起SCG激活;
    为预先指定的SCG;
    为所述终端的至少一个分离无线承载的除MCG通道leg之外的另一条leg。
  31. 根据权利要求30所述的装置,其中,所述第一确定模块或第二确定模块,还包括:
    发送单元,用于在所述第三SCG的激活流程中或在所述第三SCG被激活后,发送所述第一SCG的失败信息,其中,所述第一SCG的失败信息对应的失败类型包括:其他失败或者RACH失败或者SCG激活失败。
  32. 根据权利要求24所述的装置,其中,所述第一流程发起模块,具体用于:
    向网络侧设备发送SCG激活请求,请求激活所述第一SCG;或者自行将所述第一SCG置为激活态。
  33. 根据权利要求26所述的装置,其中,所述第二流程发起模块,具体用于:
    向网络侧设备发送SCG去激活请求,请求去激活所述第二SCG;或者自行将所述第二SCG置为去激活态。
  34. 根据权利要求26所述的装置,其中,所述第二流程发起模块,具体用于:
    若所述第二SCG去激活失败,则挂起所述第二SCG的传输;
    或者,
    若所述终端在预设时间长度内未接收到所述第二SCG的去激活命令,则自行将所述第二SCG置为去激活态。
  35. 根据权利要求22所述的装置,其中,所述第一小区组配置包括以下至少一项:
    SCG配置;
    候选主辅小区PSCell所对应的小区组配置,所述候选PSCell为符合条件主辅小区切换CPC执行条件的PSCell;
    公共小区组配置,所述公共小区组配置用于配置所述终端的MCG和至少一个SCG。
  36. 根据权利要求35所述的装置,其中,所述执行模块,具体用于:
    在所述终端接收到第一指示信息的情况下,将所述第一小区组配置为MCG,其中,所述第一指示信息用于指示在所述终端发生MCG失败的情况下将所述第一小区组配置为所述MCG。
  37. 根据权利要求35所述的装置,还包括以下至少一项:
    第二传输模块,用于挂起所述第一小区组的传输;
    删除模块,用于在将所述第一小区组配置为所述MCG之前,删除MCG配置;
    配置模块,用于在将所述第一小区组配置为所述MCG之后,释放或者重配所述第一小区组。
  38. 根据权利要求37所述的装置,还包括:
    第二发送模块,用于向网络侧设备发送第二指示信息,其中,所述第二指示信息用于指示所述第一小区组被重配为MCG。
  39. 根据权利要求37所述的装置,其中,在所述至少两个SCG包括处于激活状态的其他SCG,和/或,所述终端预先配置有SCG释放指示的情况下,所述配置模块用于释放所述第一小区组;
    在所述至少两个SCG不包括处于激活状态的其他SCG,和/或,预先配置有所述第一小区组的候选配置的情况下,所述配置模块用于重配置所述第一小区组。
  40. 根据权利要求22所述的装置,其中,所述执行模块,包括:
    第二确定单元,用于在所述终端的至少一个SCG满足以下条件中的至少一项的情况下,从其他SCG中确定所述第一SCG:
    处于激活态;
    所述终端正在执行所述SCG的激活流程;
    所述终端确定使用所述SCG来上报所述MCG的失败信息。
  41. 根据权利要求40所述的装置,其中,所述第一SCG为所述终端的分离无线承载的除MCG leg之外的其他leg。
  42. 根据权利要求40所述的装置,还包括:
    第四流程发起模块,用于发起所述第一SCG的激活流程。
  43. 一种终端,包括处理器,存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求1至21任一项所述的主小区组MCG恢复方法的步骤。
  44. 一种终端,包括处理器及通信接口,其中,所述处理器用于若终端发生MCG失败,则执行以下至少一项:
    在所述终端被配置至少两个辅小区组SCG的情况下,所述终端确定第一SCG,所述第一SCG用于恢复所述MCG或恢复所述MCG传输,其中,所述至少两个SCG包括所述第一SCG;
    将第一小区组配置应用于所述MCG,所述第一小区组配置用于配置SCG。
  45. 一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如权利要求1至21中任一项所述的主小区组MCG恢复方法的步骤。
  46. 一种芯片,包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如权利要求1至21中任一项所述的方法。
  47. 一种计算机程序产品,所述计算机程序产品被存储在非易失的存储介质中,所述计算机程序产品被至少一个处理器执行以实现如权利要求1至21中任一项所述的方法。
  48. 一种通信设备,所述通信设备被配置成用于执行如权利要求1至21中任一项所述的方法。
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