WO2022127778A1 - 由用户设备执行的方法及用户设备 - Google Patents

由用户设备执行的方法及用户设备 Download PDF

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Publication number
WO2022127778A1
WO2022127778A1 PCT/CN2021/137853 CN2021137853W WO2022127778A1 WO 2022127778 A1 WO2022127778 A1 WO 2022127778A1 CN 2021137853 W CN2021137853 W CN 2021137853W WO 2022127778 A1 WO2022127778 A1 WO 2022127778A1
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WIPO (PCT)
Prior art keywords
scg
pscell
target
state
configuration
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PCT/CN2021/137853
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English (en)
French (fr)
Inventor
张崇铭
刘仁茂
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夏普株式会社
张崇铭
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Application filed by 夏普株式会社, 张崇铭 filed Critical 夏普株式会社
Priority to US18/266,304 priority Critical patent/US20240032136A1/en
Publication of WO2022127778A1 publication Critical patent/WO2022127778A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0096—Indication of changes in allocation
    • H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • the present invention relates to the technical field of wireless communication, and more particularly, the present invention relates to a method performed by a user equipment and a corresponding user equipment.
  • Dual connection or multi-connection means that two UEs working in the connected state establish a physical wireless path with more than one network node, and realize data transmission.
  • it includes a master control node (Master Node, MN) and an auxiliary control node (Secondary Node, SN).
  • the MN is executed by a Gnb/Enb/ng-eNB, and the serving cell group controlled by the MN is called a Master Cell Group (MCG).
  • MCG Master Cell Group
  • the SN is performed by one or more Gnb/Enb/ng-eNB, and the serving cell group controlled by the SN is called a Secondary Cell Group (Secondary Cell Group, SCG).
  • a UE configured with dual connectivity or multiple connectivity can communicate with the MCG and with the SCG to achieve a higher data rate.
  • the power consumption of the UE increases exponentially in order to maintain the communication between the two network nodes.
  • the SCG may be deactivated (deactivated) in an appropriate situation, for example, when the communication traffic of the UE is small.
  • the present invention proposes a solution to the following problem, that is, a solution to how to perform configuration management of an SCG in a deactivated state.
  • the purpose of the present invention is to provide a method executed by a user equipment and a corresponding user equipment capable of reasonably performing configuration management on an SCG in a deactivated state.
  • a method performed by a user equipment wherein the user equipment UE configured with dual connectivity or multi-connection is in the process of communicating with the primary cell group MCG and the secondary cell group SCG.
  • the configuration management method of the SCG in the activated state includes the following steps:
  • the UE receives the RRC connection reconfiguration message sent by the base station to the UE.
  • the RRC connection reconfiguration message carries the dedicated cell configuration and synchronization indication for the SCG, wherein the SCG corresponding to the dedicated cell configuration is the target SCG, and its The primary serving cell PSCell is the target PSCell, and the SCG/PSCell serving the UE before receiving the reconfiguration message is the source SCG/source PSCell;
  • the UE performs different PSCell change operations according to the state of the target SCG or the target PSCell.
  • the UE starts the timer T304, and when the random access procedure performed by the UE on the target PSCell is successfully completed, the timer is stopped. T304;
  • the UE does not start the timer T304;
  • the UE If the source SCG is in the active state, the UE starts the timer T304;
  • the UE does not start the timer T304.
  • the UE will perform synchronization reconfiguration based on the synchronization indication, so as to realize PSCell change or SCG handover from the source PSCell to the target PSCell.
  • the UE After the UE performs synchronous reconfiguration, if the target SCG or the target PSCell is in the active state, the UE resumes SCG transmission;
  • the UE After the UE performs synchronized reconfiguration, if the target SCG or the target PSCell is in the deactivated state, the UE does not resume SCG transmission.
  • the UE After receiving the RRC reconfiguration message that carries the synchronization indication and is used for the dedicated cell configuration of the SCG, the UE triggers the execution of the random access procedure on the target PSCell,
  • the UE adopts the configuration of the CSI report
  • the UE does not use the CSI report configuration
  • the UE deactivates the SCG, including performing the operation of deactivating the SCG;
  • the UE does not perform the deactivation operation.
  • the cell group configuration for the SCG is carried in the RRC reconfiguration information
  • the UE performs cell group configuration for the SCG
  • the UE configures the dedicated cell
  • the UE configures the dedicated cell according to the dedicated configuration of the dedicated cell, and configures the first activated downlink in the dedicated configuration of the dedicated cell.
  • the bandwidth part identifies the first active downlink BWP-ID and the first active uplink bandwidth part identifies the first active uplink BWP-ID,
  • the UE considers the BWP indicated by the first active downlink BWP-ID as the activated downlink BWP, and considers the BWP indicated by the first active uplink BWP-ID as the activated uplink BWP;
  • the UE does not perform the above operation.
  • the UE When the above-mentioned SCG in the deactivated state is activated, the UE performs the random access procedure in the above-mentioned PSCell,
  • the UE When the random access procedure is successfully completed, the UE considers the BWP indicated by the first active downlink BWP-ID as the activated downlink BWP, and considers the BWP indicated by the first active uplink BWP-ID as the activated uplink BWP.
  • the RRC reconfiguration information carries the radio bearer configuration
  • the UE performs radio bearer configuration.
  • a user equipment comprising:
  • the above-mentioned instructions when executed by the above-mentioned processor, cause the above-mentioned user equipment to perform the method according to the above-mentioned description.
  • the SCG in the deactivated state can be reasonably configured and managed.
  • FIG. 1 is a flowchart showing a method executed by a user equipment according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural block diagram of the user equipment involved in the present invention.
  • E-UTRA Evolved Universal Terrestrial Radio Access
  • Gnb provides NR user plane and control plane protocol stack to UE, and connects to base station node of 5G core network
  • Enb provides E-UTRAN user plane and control plane protocol stack to UE, and connects to base station node of EPC core network
  • Ng-enb provides E-UTRAN user plane and control plane protocol stack to UE and connects to base station node of 5G core network
  • Dual connection or multi-connection means that a UE working in a connected state establishes a physical wireless path with more than one network node, and realizes data transmission.
  • it includes a master control node (Master Node, MN) and an auxiliary control node (Secondary Node, SN).
  • the MN is executed by a base station, which can be Gnb supporting 5G technology, or Enb supporting 4G technology, or ng-eNB supporting connection to the next generation core network (5G core network).
  • the serving cell group controlled by the MN is called a Master Cell Group (MCG).
  • MCG Master Cell Group
  • PCell Primary Cell
  • RLM radio link monitoring
  • Scells Scells.
  • SRB The SRB established between the MN and the UE, generally referred to as SRB1, is mainly used to transmit RRC messages between the MN and the UE.
  • the SN is performed by a base station, which can be Gnb supporting 5G technology, or Enb supporting 4G technology, or ng-eNB supporting connection to the next generation core network (5G core network).
  • the serving cell group controlled by the SN is called a secondary cell group (Secondary Cell Group, SCG).
  • SCG contains at least one primary serving cell, which is called PSCell (Primary Second Cell).
  • PSCell Primary Second Cell
  • the UE performs radio link monitoring on the PSCell. If other cells are included in the SCG, they may be collectively referred to as Scells.
  • An SRB can be established between the SN and the UE, usually referred to as SRB3, which is mainly used to transmit RRC messages between the SN and the UE, such as measurement reports associated with the SCG.
  • a special cell (special cell, Spcell) may be used to refer to the PCell of the MCG and the PSCell of the SCG.
  • This embodiment provides a configuration management method for a deactivated SCG in the process of communicating with the MCG and the SCG by a UE configured with dual connectivity or multiple connectivity, as shown in FIG. 1 , including:
  • Step S101 The UE receives an RRC connection reconfiguration message sent by the base station (eg, gNB) to the UE.
  • the base station eg, gNB
  • the RRC connection reconfiguration information sent to the UE carries spCellConfig (specific cell configuration) for SCG and synchronization indication (reconfiguration WithSync).
  • the SCG corresponding to this spCellConfig may be called the target SCG, and its PSCell may be called the target PSCell. Accordingly, the SCG/PSCell serving the UE before receiving the reconfiguration message may be referred to as the source SCG/source PSCell.
  • Step S102 The UE performs different PSCell change operations according to different states of the target SCG or the target PSCell.
  • the UE may start (start) the timer T304. And when the random access procedure performed by the UE on the target PSCell is successfully completed, the timer T304 is stopped.
  • the state of the target PSCell or the target SCG may not be indicated in the configuration message. In this case, it is specified that the state of the PSCell or the target SCG is the active state.
  • the UE does not start the timer T304, and optionally, does not perform the random access procedure on the target PSCell.
  • the UE receives the RRC reconfiguration message.
  • the reconfiguration message carries spCellConfig for the SCG and a synchronization indication (reconfiguration WithSync), and the SCG is in an active state, start a timer T304. And when the random access procedure performed by the UE on the target PSCell is successfully completed, the timer T304 is stopped.
  • the UE may not start T304, and optionally, not perform a random access procedure on the target PSCell.
  • the UE receives the RRC connection reconfiguration message sent by the gNB to the UE.
  • the RRC connection reconfiguration information sent to the UE carries spCellConfig for SCG and synchronization indication (reconfiguration WithSync).
  • the SCG corresponding to this spCellConfig may be called the target SCG, and its PSCell may be called the target PSCell. Accordingly, the SCG/PSCell serving the UE before receiving the reconfiguration message may be referred to as the source SCG/source PSCell.
  • the UE will perform a synchronous reconfiguration (perform reconfiguration of sync) based on the synchronization instruction, thereby realizing PSCell change (PSCell change) or SCG handover (switch/handover) from the source PSCell to the target PSCell.
  • PSCell change PSCell change
  • SCG handover switch/handover
  • the UE After the UE performs synchronous reconfiguration, if the target SCG or the target PSCell is in the active state, the UE resumes SCG transmission (resume SCG transmission),
  • the UE After the UE performs synchronized reconfiguration, if the target SCG or the target PSCell is in the deactivated state, the UE does not resume SCG transmission.
  • the UE After receiving the RRC reconfiguration message for the spCellConfig of the SCG carrying the synchronization indication (reconfiguration WithSync), the UE may trigger the execution of the random access procedure on the target PSCell.
  • the random access procedure is successfully completed:
  • the UE adopts the CSI reporting configuration (apply CSI reporting configuration);
  • the UE does not use the CSI reporting configuration (apply CSI reporting configuration).
  • the UE After receiving the RRC reconfiguration message for the spCellConfig of the SCG carrying the synchronization indication (reconfiguration WithSync), the UE may trigger the execution of the random access procedure on the target PSCell.
  • the random access procedure is successfully completed:
  • the UE deactivates the SCG, which specifically includes performing an operation of deactivating the SCG.
  • the UE does not perform the deactivation operation if the target SCG or the target PSCell is in the active state.
  • the state of the target SCG or the target PSCell in the above operation may be indicated in the RRC connection reconfiguration message received by the UE, for example:
  • the reconfiguration information it is indicated that the replaced target PSCell or the target SCG is in the active state, then it can be known that the target SCG or the target Psell is in the active state; in particular, in the reconfiguration information, you can also If the status of the replaced target PSCell or the target SCG is not indicated, in this case, the target SCG or the target Psell can be considered to be in the active state.
  • the above-mentioned state of the target SCG or the target PSCell may also be known according to the state of the source SCG or the source PSCell, for example:
  • the state of the source SCG or the source PSCell is in the active state, it can be known that the target SCG or the target Psell is in the active state;
  • the state of the source SCG or the source PSCell is in the deactivated state, it can be known that the target SCG or the target Psell is in the deactivated state.
  • the UE can also learn whether the target SCG or the target Psell is in the active state according to the state of the source SCG or the source PSCell and the indication in the reconfiguration information, for example
  • the indication information in the reconfiguration information indicates that the target SCG knows that the target PSCell is in the active state; then it can be known that the target SCG or the target Psell is in the active state;
  • the reconfiguration information does not contain indication information indicating the state of the target SCG or the target PSCell, then it can be known that the target SCG or the target Psell is in the active state
  • the indication information in the reconfiguration information indicates that the target SCG knows that the target PSCell is in the deactivated state; then it can be defined that in this case, the target SCG or the target Psell is in the active state, Or define that the target SCG or the target Psell is in a deactivated state in this case;
  • the indication information in the reconfiguration information indicates that the target SCG knows that the target PSCell is in the deactivated state; then it can be known that the target SCG or the target Psell is in the deactivated state;
  • the state of the source SCG or the source PSCell is in the deactivated state, and the reconfiguration information does not contain indication information indicating the state of the target SCG or the target PSCell, then it can be defined that in this case, the target SCG or the target Psell is in the active state, Or it is defined that the target SCG or the target Psell is in a deactivated state in this case.
  • the UE receives the RRC connection reconfiguration message sent by the gNB to the UE.
  • the cell group configuration (CellGroupConfig) for the SCG is carried.
  • the UE performs the configuration of the cell group for this SCG.
  • the UE configures spcell.
  • spell refers to pscell.
  • the UE configures the Spcell according to the dedicated configuration of the spcell.
  • the first active downlink BWP-ID and the first active uplink BWP-ID are configured in spell's proprietary configuration.
  • the UE considers the BWP indicated by the first active downlink BWP-ID to be the active downlink BWP, and considers the BWP indicated by the first active uplink BWP-ID to be the active uplink BWP;
  • the UE does not perform the above operation, that is, the UE does not consider the BWP indicated by the first active downlink BWP-ID to be the activated downlink BWP, and does not consider that the BWP indicated by the f first active uplink BWP-ID is the active downlink BWP.
  • the BWP is the activated upstream BWP.
  • the SCG or PSCell here refers to the SCG or PSCell configured by using the cell group configuration information carried in the foregoing RRC reconfiguration message.
  • the determination of the state of the SCG or PSCell may be indicated in the RRC connection reconfiguration message received by the UE as described in Embodiment 2, or it may be determined according to the state of the source SCG or the source PSCell, or a combination of the two. It can also be determined by the working state of the SCG or PSCell, that is, when the SCG/PSCell is in a deactivated state when receiving the RRC reconfiguration message, it can be known that the SCG/PSCell is in a deactivated state; the SCG/PSCell is in a deactivated state; When the PSCell is in the active state when it receives the RRC reconfiguration message, it can learn that the SCG/PSCell is in the active state.
  • the RRC connection reconfiguration message in this embodiment may also carry the spCellConfig for SCG mentioned in Embodiment 1, and the synchronization indication (reconfiguration WithSync). (spcell dedicated configuraiton) can be included in spCellConfig for SCG and applied to the configuration of target SCG or target Pscell.
  • the RRC connection reconfiguration message in this embodiment may carry the specific configuration of the spcell, but does not carry the synchronization indication.
  • the specific configuration of the spcell carried here is not used for the target SCG, but is applied to the following SCG :
  • the dedicated configuration of the spcell carried here is applied to the SCG currently serving the UE, or to the existing SCG of the UE. SCG.
  • Embodiment 3 when the SCG in the deactivated state is activated, the UE performs a random access procedure in the PSCell.
  • the UE When the random access procedure is successfully completed, the UE considers the BWP indicated by the first active downlink BWP-ID to be the active downlink BWP, and considers the BWP indicated by the first active uplink BWP-ID to be the active uplink BWP.
  • the activation mode of the SCG may be receiving an SCG activation command.
  • the SCG activation command may be an RRC reconfiguration message (RRC reconfiguration Message).
  • the SCG activation command may also be a MAC CE, for example, the SCG activates the MAC CE.
  • the UE receives the MAC CE, the UE indicates to the upper layer such as the RRC layer that the SCG is activated, or that the PSCell belonging to the SCG is activated.
  • the SCG activation command may also be carried in Downlink Control Information (DCI).
  • DCI Downlink Control Information
  • the RRC layer performs an activation operation upon receiving the SCG activated indication or the SCG activated command.
  • the activation operation may include performing a random access procedure in the PSCell. And when the random access procedure is successfully completed, the UE considers the BWP indicated by the first active downlink BWP-ID as the activated downlink BWP, and considers the BWP indicated by the first active uplink BWP-ID as the activated uplink BWP.
  • the UE when there is a dedicated configuration of spcell in the configuration information of the SCG, the UE considers the BWP indicated by the first active downlink BWP-ID to be the active downlink BWP, and considers that the BWP indicated by the first active uplink BWP-ID is active Upstream BWP.
  • the UE may not perform the random access procedure in the PSCell. Then it can be considered that when the UE receives the SCG activation instruction or the SCG activation command, when there is a spcell-specific configuration in the configuration information of the SCG, the UE considers that the BWP indicated by the first active downlink BWP-ID is the activated downlink BWP, and the BWP indicated by the first active uplink BWP-ID is considered to be the active uplink BWP.
  • the UE receives the RRC connection reconfiguration message sent by the gNB to the UE.
  • the RRC reconfiguration information carries the radio bearer configuration (radioBearerConfig)
  • the UE performs the radio bearer configuration.
  • radioBearerConfig contains (contain/include) drb-ToAddModList
  • the UE performs an addition or reconfiguration operation of a data bearer (DRB).
  • DRB data bearer
  • the UE For the value of DRB-Identity contained in drb-ToAddModList, if the value does not belong to the current configuration of the UE, that is, there is no DRB corresponding to the value of DRB-identity in the DRB currently configured by the UE, then the UE is The DRB establishes a PDCP entity, and notifies the upper layer of the establishment of the DRB. If the PDCP entity of the DRB is located in the SCG, and the SCG is in a deactivated state, the DRB is suspended or suspended.
  • - SRS can be transmitted on the serving cell (transmit SRS on the SCell);
  • - CSI report can be performed for the serving cell (report CSI for the SCell);
  • the serving cell can transmit on the uplink channel of the serving cell (transmit on UL-SCH on the SCell);
  • the serving cell if the serving cell is configured with a random access channel, transmit on the random access channel on the serving cell (transmit on RACH on the SCell);
  • the PUCCH may be transmitted on the serving cell (transmit PUCCH on the SCell).
  • a serving cell with the above characteristics can be called an activated cell or a cell in an activated state.
  • a serving cell having one or more of the above characteristics can be called an activated cell or a cell in an activated state.
  • the SCG in the active state or the PScell of the SCG in the active state mentioned in the foregoing embodiment is characterized in that the Pscell of the SCG is in the active state, that is, the Pscell of the SCG has one or more of the above features.
  • a serving cell When a serving cell is deactivated, its characteristics include at least one or more of the following characteristics:
  • a serving cell having one or more of the above features can be called a deactivated cell or a cell in a deactivated state.
  • the SCG in the deactivated state or the PScell of the SCG in the deactivated state mentioned in the foregoing embodiment is characterized in that the Pscell of the SCG is in the deactivated state, that is, the Pscell of the SCG has one or more of the above characteristics. .
  • FIG. 2 is a schematic structural block diagram of the user equipment involved in the present invention.
  • the user equipment UE200 includes a processor 201 and a memory 202 .
  • the processor 201 may include, for example, a microprocessor, a microcontroller, an embedded processor, or the like.
  • the memory 202 may include, for example, volatile memory (eg, random access memory RAM), a hard disk drive (HDD), non-volatile memory (eg, flash memory), or other memory, or the like.
  • Program instructions are stored on the memory 202 . When the instruction is executed by the processor 201, the above method described in detail in the present invention and executed by the user equipment can be executed.
  • a program running on a device may be a program that causes a computer to implement the functions of the embodiments of the present invention by controlling a central processing unit (CPU).
  • the program or information processed by the program may be temporarily stored in volatile memory (eg, random access memory RAM), a hard disk drive (HDD), non-volatile memory (eg, flash memory), or other memory systems.
  • a program for realizing the functions of the embodiments of the present invention can be recorded on a computer-readable recording medium.
  • the corresponding functions can be realized by causing a computer system to read programs recorded on the recording medium and execute the programs.
  • the so-called "computer system” here may be a computer system embedded in the device, and may include an operating system or hardware (eg, peripheral devices).
  • the "computer-readable recording medium” may be a semiconductor recording medium, an optical recording medium, a magnetic recording medium, a recording medium that dynamically stores a program for a short period of time, or any other recording medium readable by a computer.
  • circuits eg, monolithic or multi-chip integrated circuits.
  • Circuits designed to perform the functions described in this specification may include general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination of the above.
  • DSPs digital signal processors
  • ASICs application specific integrated circuits
  • FPGAs field programmable gate arrays
  • a general-purpose processor may be a microprocessor or any existing processor, controller, microcontroller, or state machine.
  • the above circuit may be a digital circuit or an analog circuit. Where new integrated circuit technologies have emerged as a result of advances in semiconductor technology to replace existing integrated circuits, one or more embodiments of the present invention may also be implemented using these new integrated circuit technologies.
  • the present invention is not limited to the above-described embodiments. Although various examples of the described embodiments have been described, the invention is not limited thereto.
  • Fixed or non-mobile electronic equipment installed indoors or outdoors can be used as terminal equipment or communication equipment, such as AV equipment, kitchen equipment, cleaning equipment, air conditioners, office equipment, vending machines, and other household appliances.

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Abstract

本发明提供一种由用户设备执行的方法及用户设备。由用户设备执行的方法是被配置了双连接或者多连接的用户设备UE在与主小区组MCG以及辅小区组SCG进行通信的过程中对于处于去激活状态的SCG的配置管理方法，包括如下步骤：UE接收基站发送给UE的RRC连接重配置消息，该RRC连接重配置消息携带了用于SCG的专有小区配置以及同步指示，其中，对应于该专有小区配置的SCG为目标SCG，它的主服务小区PSCell为目标PSCell，在接收该重配置消息之前的、为UE服务的SCG/PSCell为源SCG/源PSCell；UE根据目标SCG或者目标PSCell的状态的不同而进行不同的PSCell变更操作。

Description

由用户设备执行的方法及用户设备 技术领域
本发明涉及无线通信技术领域，更具体地，本发明涉及由用户设备执行的方法以及相应的用户设备。
背景技术
随着移动通信的快速增长和技术的巨大进步，世界将走向一个完全互联互通的网络社会，即任何人或任何东西在任何时间和任何地方都可以获得信息和共享数据。为了增强移动宽带业务需求、海量物联网终端的通信需求，新一代通信技术(5G)将研究用户在双连接以至多连接下的技术增强(RP-181469New WID on DC and CA enhancements)。
双连接或者多连接，是指二工作在连接态的UE与多于一个网络节点建立物理上的建立无线通路，并实现数据传输。其中，包括主控制节点(Master Node，MN)与辅助控制节点(Secondary Node，SN)。MN由一个Gnb/Enb/ng-eNB来执行，由MN控制的服务小区组称为主小区组(Master Cell Group，MCG)。相应地，SN由一个或多个Gnb/Enb/ng-eNB来执行，由SN控制的服务小区组称为辅小区组(Secondary Cell Group，SCG)。
被配置了双连接或者多连接的UE可以通过和MCG以及和SCG进行通信，实现较高的数据速率。然而，相应地，为了维护和两个网络节点之间的通信，UE的功耗也成倍的增加。为了节约UE的功耗，可以在适当的情况下，例如当UE的通信流量较小的情况下，去激活(deactivate)SCG。
对于处于去激活状态的SCG，如何进行配置管理，是需要解决的问题。
发明内容
本发明针对以下问题提出了解决方案，即，针对处于去激活状态的SCG如何进行配置管理提出了解决方案。
本发明的目的在于，提供一种能够合理地对处于去激活状态的SCG进行配置管理的由用户设备执行的方法以及相应的用户设备。
根据本发明的一个方面，提供了一种由用户设备执行的方法，是被配置了双连接或者多连接的用户设备UE在与主小区组MCG以及辅小区组SCG进行通信的过程中对于处于去激活状态的SCG的配置管理方法，包括如下步骤：
UE接收基站发送给UE的RRC连接重配置消息，该RRC连接重配置消息携带了用于SCG的专有小区配置以及同步指示，其中，对应于该专有小区配置的SCG为目标SCG，它的主服务小区PSCell为目标PSCell，在接收该重配置消息之前的、为UE服务的SCG/PSCell为源SCG/源PSCell；
UE根据目标SCG或者目标PSCell的状态的不同而进行不同的PSCell变更操作。
在上述的由用户设备执行的方法中，优选的是，
在该重配置信息中，如果指示了目标PSCell或者是目标SCG的状态为激活态时，那么UE开启定时器T304，并且当UE在目标PSCell上执行的随机接入过程成功完成时，停止定时器T304；
在该重配置信息中，如果指示了目标PSCell或者是目标SCG的状态为去激活态时，那么UE不开启定时器T304；
如果源SCG处于激活态，那么UE开启定时器T304；
如果源SCG处于去激活态，那么UE不开启定时器T304。
在上述的由用户设备执行的方法中，优选的是，
UE基于该同步指示将执行同步重配置，从而实现从源PSCell到目标PSCell的PSCell变更或者SCG切换。
在上述的由用户设备执行的方法中，优选的是，
在UE执行同步的重配置之后，如果目标SCG或者目标PSCell是处于激活态，那么UE恢复SCG传输；
在UE执行同步的重配置之后，如果目标SCG或者目标PSCell是 处于去激活态，那么UE不恢复SCG传输。
在上述的由用户设备执行的方法中，优选的是，
UE在接收到携带了同步指示的、用于SCG的专有小区配置的RRC重配置消息后，触发在目标PSCell上执行随机接入过程，
当随机接入过程成功完成时：
如果目标SCG或者目标PSCell是处于激活态，那么UE采用CSI报告的配置；
如果目标SCG或者目标PSCell是处于去激活态，那么UE不采用CSI报告的配置，
或者是，
当随机接入过程成功完成时：
如果目标SCG或者目标PSCell是处于去激活态，那么UE去激活该SCG，包括执行去激活SCG的操作；
如果目标SCG或者目标PSCell是处于激活态，那么UE不执行去激活的操作。
在上述的由用户设备执行的方法中，优选的是，
上述操作中目标SCG或者目标PSCell所处的状态，
是在UE接收到的RRC连接重配置消息中指示的；或者是，
根据源SCG或者源PSCell的状态获知；或者是，
根据源SCG或者源PSCell的状态以及重配置信息中的指示来获知。
在上述的由用户设备执行的方法中，优选的是，
在该RRC重配置信息中携带了用于SCG的小区组配置；
UE为该SCG执行小区组的配置；
当上述小区组配置中包含了专有小区配置时，UE对专有小区进行配置；
当上述专有小区配置中包含了专有小区的专有配置时，UE根据该专有小区的专有配置对专有小区进行配置，在专有小区的专有配置中配置了首次激活的下行带宽部分标识first active downlink BWP-ID以及首次激活的上行带宽部分标识first active uplink BWP-ID，
如果该SCG或者PSCell状态为激活态，那么UE认为first active downlink BWP-ID指示的BWP为激活的下行BWP，以及认为first active  uplink BWP-ID指示的BWP为激活的上行BWP；
如果该SCG或者PSCell的状态为去激活态，那么UE不执行上述操作。
在上述的由用户设备执行的方法中，优选的是，
当上述的处于去激活态的SCG被激活时，UE在上述的PSCell中执行随机接入过程，
当随机接入过程成功完成时，UE认为first active downlink BWP-ID指示的BWP为激活的下行BWP，以及认为first active uplink BWP-ID指示的BWP为激活的上行BWP。
在上述的由用户设备执行的方法中，优选的是，
在该RRC重配置信息中携带了无线承载配置；
UE执行无线承载配置。
根据本发明的另一个方面，提供了一种用户设备，包括：
处理器；以及
存储器一上述存储器上存储有指令，
上述指令在由上述处理器运行时，使上述用户设备执行根据上文所描述的方法。
根据本发明所涉及的由用户设备执行的方法以及相应的用户设备，能够合理地对处于去激活状态的SCG进行配置管理。
附图说明
图1是表示本发明的一实施例涉及的由用户设备执行的方法的流程图。
图2是本发明涉及的用户设备的简要结构框图。
具体实施方式
下面结合附图和具体实施方式对本发明进行详细阐述。应当注意，本发明不应局限于下文所述的具体实施方式。另外，为了简便起见，省略了对与本发明没有直接关联的公知技术的详细描述，以防止对本发明的理解造成混淆。
在具体描述之前，先对本发明中提到的若干术语做如下说明。除非 另有指出，本发明中涉及的术语都具有下文的含义。
UE User Equipment 用户设备
NR New Radio 新一代无线技术
eLTE Enhaced Long Term Evolution 增强的长期演进技术
E-UTRA Evolved Universal Terrestrial Radio Access 进化的陆地无线接入
DC Dual Connectivity 双连接
MC Multi Connectivity 多连接
Gnb 向UE提供NR用户面和控制面协议栈，并连接到5G核心网的基站节点
Enb 向UE提供E-UTRAN用户面和控制面协议栈，并连接到EPC核心网的基站节点
Ng-enb 向UE提供E-UTRAN用户面和控制面协议栈，并连接到5G核心网的基站节点
SRB signaling radio bear 信令承载
DRB Data radio bear 数据承载
Split SRB 分裂的信令承载
RLC Radio Link Control，无线链路控制层
PDCP Packet Data Convergence Protocol，分组数据汇聚协议层
MAC Media Access Control 媒体访问控制层
CSI Channel state information 信道状态信息
双连接或者多连接，是指工作在连接态的UE与多于一个网络节点建立物理上的建立无线通路，并实现数据传输。其中，包括主控制节点(Master Node，MN)与辅助控制节点(Secondary Node，SN)。
MN由一个基站来执行，可以是支持5G技术的Gnb，或者是支持4G技术的Enb，还可以是支持连接到下一代核心网(5G核心网)ng-eNB。由MN控制的服务小区组称为主小区组(Master Cell Group，MCG)。其中至少有一个主服务小区，被称PCell(Primary Cell)，UE在PCell上进行无线链路监测(radio link mornitoring，RLM)。MCG中如果还包含了其他小区，可以统称为Scell。MN和UE之间建立的SRB，通常称为SRBl， 主要用于传递MN和UE之间的RRC消息。
SN由一个基站来执行，可以是支持5G技术的Gnb，或者是支持4G技术的Enb，还可以是支持连接到下一代核心网(5G核心网)ng-eNB。由SN控制的服务小区组称为辅小区组(Secondary Cell Group，SCG)。其中SCG中至少包含了一个主服务小区，被称为PSCell(Primary Second Cell)。UE在PSCell上进行无线链路监测。SCG中如果还包含了其他小区，可以统称为Scell。SN和UE之间可以建立SRB，通常称为SRB3，主要用于传递SN和UE之间的RRC消息，例如SCG相关联的测量报告。
如果不特别指示，可以用特殊的小区(special cell，Spcell)来指代MCG的PCell，以及SCG的PSCell。
以下，对本发明所涉及的具体实施例进行详细说明。另外，如上所述，本发明中的实施例是为了容易理解本发明而进行的示例性说明，并不是对本发明的限定。
【实施例1】
本实施例给出了一种被配置了双连接或者多连接的UE在与MCG以及SCG进行通信的过程中对处于去激活状态的SCG的配置管理方法，如图1所示，包括：
步骤S101：UE接收基站(例如gNB)发送给UE的RRC连接重配置消息。
在发送给UE的RRC连接重配置信息中，携带着用于SCG的spCellConfig(专有小区配置)，以及同步指示(reconfiguration WithSync)。对应于这个spCellConfig的SCG可以称为目标SCG，它的PSCell可以被称为目标PSCell。相应地，在接收该重配置消息之前的、为UE服务的SCG/PSCell可以被称为源SCG/源PSCell。
步骤S102：UE根据目标SCG或者目标PSCell的状态的不同而进行不同PSCell change操作。
具体可以包括
在该重配置信息中，如果指示了更换的目标PSCell或者是目标SCG的状态为激活态时，那么UE可以开启(start)定时器T304。并且当UE 在目标PSCell上执行的随机接入过程成功完成时，停止定时器T304。优选的，在该配置消息中可以不指示目标PSCell或者目标SCG的状态，在这种情况下，规定PSCell或者是目标SCG的状态为激活态。
在该重配置信息中，如果指示了更换的目标PSCell或者是目标SCG的状态为去激活态时，那么UE不开启定时器T304，以及可选的，不在目标PSCell上执行随机接入过程。
上述实施例的又一种实施方式可以是
UE接收RRC重配置消息。
如果该重配置消息携带着用于SCG的spCellConfig，以及同步指示(reconfiguration WithSync)，且该SCG处于激活态，那么启动开启(start)定时器T304。并且当UE在目标PSCell上执行的随机接入过程成功完成时，停止定时器T304。
如果该重配置消息携带着用于SCG的spCellConfig，以及同步指示(reconfigurationWithSync)，且该SCG处于去激活态，那么UE可以不启动T304，以及可选的，不在目标PSCell上执行随机接入过程。
【实施例2】
UE接收gNB发送给UE的RRC连接重配置消息。
在发送给UE的RRC连接重配置信息中，携带着用于SCG的spCellConfig，以及同步指示(reconfiguration WithSync)。对应于这个spCellConfig的SCG可以称为目标SCG，它的PSCell可以被称为目标PSCell。相应地，在接收该重配置消息之前的、为UE服务的SCG/PSCell可以被称为源SCG/源PSCell。
UE基于该同步指示将执行同步重配置(perform reconfiguration of sync)，从而实现从源PSCell到目标PSCell的PSCell变更(PSCell change)或者SCG切换(switch/handover)。UE根据目标SCG或者目标PSCell的状态的不同而进行不同PSCell change操作。
例如：
在UE执行同步的重配置之后，如果目标SCG或者目标PSCell是处于激活态，那么UE恢复SCG传输(resume SCG transmission)，
在UE执行同步的重配置之后，如果目标SCG或者目标PSCell是 处于去激活态，那么UE不恢复SCG传输。
又例如：
UE在接收到携带着同步指示(reconfiguration WithSync)的、用于SCG的spCellConfig的RRC重配置消息后，可以触发在目标PSCell上执行随机接入过程。当随机接入过程成功完成时：
如果目标SCG或者目标PSCell是处于激活态，UE采用CSI reporting的配置(apply CSI reporting configuration)；
如果目标SCG或者目标PSCell是处于去激活态，那么UE不采用CSI reporting的配置(apply CSI reporting configuration)。
又例如：
UE在接收到携带着同步指示(reconfiguration WithSync)的、用于SCG的spCellConfig的RRC重配置消息后，可以触发在目标PSCell上执行随机接入过程。当随机接入过程成功完成时：
如果目标SCG或者目标PSCell处于去激活态，那么UE去激活该SCG，具体包括执行去激活SCG的操作。
相应地，如果目标SCG或者目标PSCell是处于激活态，那么UE不执行去激活的操作。
上述操作中目标SCG或者目标PSCell所处的状态可以是在UE接收到的RRC连接重配置消息中指示，例如：
在该重配置信息中，指示了更换的目标PSCell或者是目标SCG的状态为去激活态，那么可以获知目标SCG或者目标Psell是处于去激活态；
又例如：该重配置信息中，指示了更换的目标PSCell或者是目标SCG的状态为激活态，那么可以获知目标SCG或者目标Psell是处于激活态；特别地，在该重配置信息中，还可以不指示更换的目标PSCell或者是目标SCG的状态，那么在这种情况下可以认为目标SCG或者目标Psell是处于激活态。
上述目标SCG或者目标PSCell所处的状态还可以是根据源SCG或者源PSCell的状态获知，例如：
如果源SCG或者源PSCell的状态为激活态，那么可以获知目标SCG或者目标Psell是处于激活态；
如果源SCG或者源PSCell的状态为去激活态，那么可以获知目标SCG或者目标Psell是处于去激活态。
可选的，UE还可以根据源SCG或者源PSCell的状态以及重配置信息中的指示来获知标SCG或者目标Psell是处于激活态，例如
如果源SCG或者源PSCell的状态为激活态，以及在重配置信息中的指示信息指示目标SCG获知目标PSCell处于激活态；那么可以获知目标SCG或者目标Psell是处于激活态；
特别地，如果源SCG或者源PSCell的状态为激活态，以及重配置信息中的不包含指示信息指示目标SCG或者目标PSCell的状态，那么可以获知目标SCG或者目标Psell是处于激活态
如果源SCG或者源PSCell的状态为激活态，以及在重配置信息中的指示信息指示目标SCG获知目标PSCell处于去激活态；那么可以定义这种情况下，目标SCG或者目标Psell是处于激活态，或者是定义这种情况下目标SCG或者目标Psell是处于去激活态；
如果源SCG或者源PSCell的状态为去激活态，以及在重配置信息中的指示信息指示目标SCG获知目标PSCell处于去激活态；那么可以获知目标SCG或者目标Psell是处于去激活态；
如果源SCG或者源PSCell的状态为去激活态，以及重配置信息中的不包含指示信息指示目标SCG或者目标PSCell的状态，那么可以定义这种情况下，目标SCG或者目标Psell是处于激活态，或者是定义这种情况下目标SCG或者目标Psell是处于去激活态。
【实施例3】
UE接收gNB发送给UE的RRC连接重配置消息。
在该RRC重配置信息中，携带了用于SCG的小区组配置(CellGroupConfig)
UE为该SCG执行小区组的配置.
当上述的CellGroupConfig中包含(contain/include)了spCellConfig，UE对spcell进行配置，对于一个SCG，spell指的是pscell。
当上述spCellConfig中包含了spcell的专有配置(spcell dedicated configuraiton)，那么UE根据该spcell专有配置对Spcell进行配置。
在spell的专有配置中配置了first active downlink BWP-ID以及first active uplink BWP-ID。
如果该SCG或者PSCell状态为激活态，那么UE认为first active downlink BWP-ID指示的BWP为激活的下行BWP，以及认为在first active uplink BWP-ID指示的BWP为激活的上行BWP；
如果该SCG或者PSCell的状态为去激活态，那么UE不执行上述操作，即UE不认为first active downlink BWP-ID指示的BWP为激活的下行BWP，以及不认为在f first active uplink BWP-ID指示的BWP为激活的上行BWP。
这里的SCG或者PSCell是指采用了前述RRC重配置消息中携带的小区组配置信息进行配置的SCG或者PSCell。
该SCG或者PSCell的状态的确定，可以如实施例2中所述在UE接收到的RRC连接重配置消息中指示或者是根据源SCG或者源PSCell的状态获知，又或者是两者的结合来确定；还可以是由该SCG或者PSCell的工作状态来确定，即该SCG/PSCell在接收到所述RRC重配置消息时处于去激活状态时，可以获知该SCG/PSCell处于去激活状态；该SCG/PSCell在接收到所述RRC重配置消息时处于激活状态时，可以获知该SCG/PSCell处于激活状态。
本实施例中的RRC连接重配置消息还可以携带了实施例1中提到的用于SCG的spCellConfig，以及同步指示(reconfiguration WithSync)，在这种情况下，前面提到的spcell的专有配置(spcell dedicated configuraiton)可以包含在用于SCG的spCellConfig中，并且应用于目标SCG或者目标Pscell的配置。
本实施例中的RRC连接重配置消息可以携带spcell的专有配置，但是不携带同步指示，在这种情况下，这里携带的spcell的专有配置不用于目标SCG，而是应用于下述SCG：
情况一，UE在接收该重配置消息之前，没有被配置SCG，那么这里携带的spcell的专有配置应用于为UE增加(addtition)的SCG；
情况二，UE在接收该重配置消息之前，已经被配置了SCG，或者 已经存在SCG的配置，那么这里携带的spcell的专有配置应用于当前为UE服务的SCG，或者应用于UE已有的SCG。
【实施例4】
在实施例3的基础上，当所述的、处于去激活态的SCG被激活时，UE在所述的PSCell中执行随机接入过程。
当随机接入过程成功完成时，UE认为first active downlink BWP-ID指示的BWP为激活的下行BWP，以及认为在first active uplink BWP-ID指示的BWP为激活的上行BWP。
这里SCG的激活方式可以是接收到SCG激活命令。SCG激活命令可以是一个RRC重配置消息(RRC reconfiguration Message)。SCG激活命令还可以是一个MAC CE，例如SCG激活MAC CE。当UE接收到该MAC CE时，UE向上层例如RRC层，指示SCG被激活，或是属于该SCG的PSCell被激活。SCG激活命令还可以是携带在下行控制信息(DCI)中。
在接收到SCG被激活的指示或者SCG被激活的命令时，RRC层执行激活操作。激活操作中可以包括在在所述的PSCell中执行随机接入过程。以及当随机接入过程成功完成时，UE认为first active downlink BWP-ID指示的BWP为激活的下行BWP，以及认为在first active uplink BWP-ID指示的BWP为激活的上行BWP。优选的，当该SCG的配置信息中存在spcell的专有配置，那么UE认为first active downlink BWP-ID指示的BWP为激活的下行BWP，以及认为在first active uplink BWP-ID指示的BWP为激活的上行BWP。
特别地，当与该被激活的SCG相关联的时间提前定时器还在运行时，UE可以不执行在PSCell的随机接入过程。那么可以认为UE在接收到SCG被激活的指示或者SCG被激活的命令时，当该SCG的配置信息中存在spcell的专有配置，那么UE认为first active downlink BWP-ID指示的BWP为激活的下行BWP，以及认为在first active uplink BWP-ID指示的BWP为激活的上行BWP。
【实施例5】
UE接收gNB发送给UE的RRC连接重配置消息。在该RRC重配置信息中，携带了无线承载配置(radioBearerConfig)
UE执行无线承载配置(perform the radio bearer configuration).
当上述的radioBearerConfig中包含(contain/include)了drb-ToAddModList，UE执行数据承载(DRB)的添加(addition)或者重配置(reconfiguration)操作。
对于在drb-ToAddModList中包含的DRB-Identity的取值，如果该取值不属于UE当前的配置，即当前UE被配置的DRB中不存在对应于该DRB-identity取值的DRB，那么UE为该DRB建立一个PDCP实体，以及通知上层该DRB的建立。如果该DRB的PDCP实体位于SCG，并且该SCG处于去激活状态，那么挂起或者暂停(suspend)该DRB。
这里SCG处于去激活状态的确定方法如实施例3所述。
【实施例6】
当一个服务小区被激活时，其特征如下：
-可以在该服务小区上传输SRS(transmit SRS on the SCell)；
-可以为该服务小区进行CSI报告(report CSI for the SCell)；
-如果该服务小区被配置了上行信道，那么可以在该服务小区的上行信道上进行传输(transmit on UL-SCH on the SCell)；
-如果该服务小区被配置了随机接入信道，那么可以在该服务小区上的随机接入信道上进行传输(transmit on RACH on the SCell)；
-在该服务小区上监听PDCCH(monitor the PDCCH on the SCell)；
-监听和该服务小区相关的PDCCH(monitor the PDCCH for the SCell)；
-如果该服务小区被配置了PUCCH，那么可以在该服务小区上PUCCH进行传输(transmit PUCCH on the SCell)。
可以认为具备上述特征的服务小区可以被称为被激活的小区或者是处于激活态的小区。
可以认为具备上述特征之一或者多的服务小区可以被称为被激活的 小区或者是处于激活态的小区。在前述实施例中提到的处于激活态的SCG或者处于激活态的SCG的PScell，其特征在于所述SCG的Pscell处于激活态，即所述SCG的Pscell存在上述特征之一或者多。
【实施例7】
当一个服务小区被去激活时，其特征至少包括以下之一或多的特征：
-不在该服务小区上传输SRS(not transmit SRS on the SCell)；
-不为该服务小区进行CSI报告(not report CSI for the SCell)；
-在该服务小区的上行信道上不进行传输(not transmit on UL-SCH on the SCell)；
-在该服务小区上的随机信道上不进行传输(not transmit on RACH on the SCell)；
-不在该服务小区上监听PDCCH(not monitor the PDCCH on the SCell)；
-不监听和该服务小区相关的PDCCH(not monitor the PDCCH for the SCell)；
-在该服务小区上PUCCH不进行传输(not transmit PUCCH on the SCell)。
可以认为具备上述特征之一或者多的服务小区可以被称为被去激活的小区或者是处于去激活态的小区。在前述实施例中提到的处于去激活态的SCG或者处于去激活态的SCG的PScell，其特征在于所述SCG的Pscell处于去激活态，即所述SCG的Pscell存在上述特征之一或者多。
图2是本发明涉及的用户设备的简要结构框图。如图2所示，该用户设备UE200包括处理器201和存储器202。处理器201例如可以包括微处理器、微控制器、嵌入式处理器等。存储器202例如可以包括易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器等。存储器202上存储有程序指令。该指令在由处理器201运行时，可以执行本发明详细描述的由用户设备执行的上述方法。
运行在根据本发明的设备上的程序可以是通过控制中央处理单元(CPU)来使计算机实现本发明的实施例功能的程序。该程序或由该程序处理的信息可以临时存储在易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器系统中。
用于实现本发明各实施例功能的程序可以记录在计算机可读记录介质上。可以通过使计算机系统读取记录在所述记录介质上的程序并执行这些程序来实现相应的功能。此处的所谓“计算机系统”可以是嵌入在该设备中的计算机系统，可以包括操作系统或硬件(如外围设备)。“计算机可读记录介质”可以是半导体记录介质、光学记录介质、磁性记录介质、短时动态存储程序的记录介质、或计算机可读的任何其他记录介质。
用在上述实施例中的设备的各种特征或功能模块可以通过电路(例如，单片或多片集成电路)来实现或执行。设计用于执行本说明书所描述的功能的电路可以包括通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、或其他可编程逻辑器件、分立的门或晶体管逻辑、分立的硬件组件、或上述器件的任意组合。通用处理器可以是微处理器，也可以是任何现有的处理器、控制器、微控制器、或状态机。上述电路可以是数字电路，也可以是模拟电路。因半导体技术的进步而出现了替代现有集成电路的新的集成电路技术的情况下，本发明的一个或多个实施例也可以使用这些新的集成电路技术来实现。
此外，本发明并不局限于上述实施例。尽管已经描述了所述实施例的各种示例，但本发明并不局限于此。安装在室内或室外的固定或非移动电子设备可以用作终端设备或通信设备，如AV设备、厨房设备、清洁设备、空调、办公设备、自动贩售机、以及其他家用电器等。
如上，已经参考附图对本发明的实施例进行了详细描述。但是，具体的结构并不局限于上述实施例，本发明也包括不偏离本发明主旨的任何设计改动。另外，可以在权利要求的范围内对本发明进行多种改动， 通过适当地组合不同实施例所公开的技术手段所得到的实施例也包含在本发明的技术范围内。此外，上述实施例中所描述的具有相同效果的组件可以相互替代。

Claims (10)

  1. 一种由用户设备执行的方法，是被配置了双连接或者多连接的用户设备UE在与主小区组MCG以及辅小区组SCG进行通信的过程中对于处于去激活状态的SCG的配置管理方法，包括如下步骤：
    UE接收基站发送给UE的RRC连接重配置消息，该RRC连接重配置消息携带了用于SCG的专有小区配置以及同步指示，其中，对应于该专有小区配置的SCG为目标SCG，它的主服务小区PSCell为目标PSCell，在接收该重配置消息之前的、为UE服务的SCG/PSCell为源SCG/源PSCell；
    UE根据目标SCG或者目标PSCell的状态的不同而进行不同的PSCell变更操作。
  2. 根据权利要求1所述的由用户设备执行的方法，其中，
    在该重配置信息中，如果指示了目标PSCell或者是目标SCG的状态为激活态时，那么UE开启定时器T304，并且当UE在目标PSCell上执行的随机接入过程成功完成时，停止定时器T304；
    在该重配置信息中，如果指示了目标PSCell或者是目标SCG的状态为去激活态时，那么UE不开启定时器T304；
    如果源SCG处于激活态，那么UE开启定时器T304；
    如果源SCG处于去激活态，那么UE不开启定时器T304。
  3. 根据权利要求1或2所述的由用户设备执行的方法，其中，
    UE基于该同步指示将执行同步重配置，从而实现从源PSCell到目标PSCell的PSCell变更或者SCG切换。
  4. 根据权利要求3所述的由用户设备执行的方法，其中，
    在UE执行同步的重配置之后，如果目标SCG或者目标PSCell是处于激活态，那么UE恢复SCG传输；
    在UE执行同步的重配置之后，如果目标SCG或者目标PSCell是处于去激活态，那么UE不恢复SCG传输。
  5. 根据权利要求3所述的由用户设备执行的方法，其中，
    UE在接收到携带了同步指示的、用于SCG的专有小区配置的RRC 重配置消息后，触发在目标PSCell上执行随机接入过程，
    当随机接入过程成功完成时：
    如果目标SCG或者目标PSCell是处于激活态，那么UE采用CSI报告的配置；
    如果目标SCG或者目标PSCell是处于去激活态，那么UE不采用CSI报告的配置，
    或者是，
    当随机接入过程成功完成时：
    如果目标SCG或者目标PSCell是处于去激活态，那么UE去激活该SCG，包括执行去激活SCG的操作；
    如果目标SCG或者目标PSCell是处于激活态，那么UE不执行去激活的操作。
  6. 根据权利要求3所述的由用户设备执行的方法，其中，
    上述操作中目标SCG或者目标PSCell所处的状态，
    是在UE接收到的RRC连接重配置消息中指示的；或者是，
    根据源SCG或者源PSCell的状态获知；或者是，
    根据源SCG或者源PSCell的状态以及重配置信息中的指示来获知。
  7. 根据权利要求1或2所述的由用户设备执行的方法，其中，
    在该RRC重配置信息中携带了用于SCG的小区组配置；
    UE为该SCG执行小区组的配置；
    当上述小区组配置中包含了专有小区配置时，UE对专有小区进行配置；
    当上述专有小区配置中包含了专有小区的专有配置时，UE根据该专有小区的专有配置对专有小区进行配置，在专有小区的专有配置中配置了首次激活的下行带宽部分标识first active downlink BWP-ID以及首次激活的上行带宽部分标识first active uplink BWP-ID，
    如果该SCG或者PSCell状态为激活态，那么UE认为first active downlink BWP-ID指示的BWP为激活的下行BWP，以及认为first active uplink BWP-ID指示的BWP为激活的上行BWP；
    如果该SCG或者PSCell的状态为去激活态，那么UE不执行上述操作。
  8. 根据权利要求7所述的由用户设备执行的方法，其中，
    当上述的处于去激活态的SCG被激活时，UE在上述的PSCell中执行随机接入过程，
    当随机接入过程成功完成时，UE认为first active downlink BWP-ID指示的BWP为激活的下行BWP，以及认为first active uplink BWP-ID指示的BWP为激活的上行BWP。
  9. 根据权利要求7所述的由用户设备执行的方法，其中，
    在该RRC重配置信息中携带了无线承载配置；
    UE执行无线承载配置。
  10. 一种用户设备，包括：
    处理器；以及
    存储器，上述存储器上存储有指令，
    上述指令在由上述处理器运行时，使上述用户设备执行根据权利要求1-9中任一项所述的方法。
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