WO2024008072A1 - Procédé de configuration de cellule de desserte secondaire exécuté par un équipement utilisateur, et équipement utilisateur - Google Patents

Procédé de configuration de cellule de desserte secondaire exécuté par un équipement utilisateur, et équipement utilisateur Download PDF

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Publication number
WO2024008072A1
WO2024008072A1 PCT/CN2023/105704 CN2023105704W WO2024008072A1 WO 2024008072 A1 WO2024008072 A1 WO 2024008072A1 CN 2023105704 W CN2023105704 W CN 2023105704W WO 2024008072 A1 WO2024008072 A1 WO 2024008072A1
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state
network
user equipment
serving cell
musim
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PCT/CN2023/105704
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English (en)
Chinese (zh)
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肖芳英
刘仁茂
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夏普株式会社
肖芳英
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Publication of WO2024008072A1 publication Critical patent/WO2024008072A1/fr

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    • 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 field of wireless communication technology, and specifically relates to a method for configuring a secondary serving cell executed by user equipment and user equipment.
  • multi-USIM card devices have become increasingly popular. For example, a user installs two USIM cards on a mobile phone that supports multiple USIM cards. One USIM card is used to subscribe to private services, and the other USIM card is used to subscribe to office services.
  • Existing devices that support multiple USIM cards are implemented by manufacturers and have not yet been standardized by 3GPP. As a result, different manufacturers adopt different implementation methods, and the behavior of user equipment UE is also different. In the existing implementation, if these USIM cards are registered with the network respectively (either to the same network or to two or more networks), the UE needs to receive paging from these networks.
  • the UE Based on the UE's transceiver capabilities, it may One situation that exists is that when the UE receives paging from the current network, another network also initiates paging for it, or when the UE is communicating with a network, another network initiates paging for it. If the UE switches between different networks, one possible result is that the UE can no longer receive data from the current network when the UE switches to another network. This will harm network performance, for example, the network sends a paging to the UE but the UE does not receive the paging because it switches to another network, or the UE switches to another network and cannot receive the schedule of the current network.
  • Some manufacturers have proposed 3GPP standardization research on the behavior of UEs with multiple USIM cards accessing networks and related networks. The benefit is that network performance can be improved based on predictable UE behavior.
  • vivo proposed a work project for version 17 multi-SIM card equipment (see non-patent literature : RP-193263: New WID: Support of Multi-SIM devices in Rel-17), and approved.
  • One of the goals of this work item is to define a mechanism for a UE to notify Network A when it leaves Network A, where Network A is NR, Network B is LTE or NR, and the UE is Single-Rx/Single-Tx or UE dual receive and single transmit (Dual-Rx/Single-Tx).
  • the object of the present invention is to provide a method that can avoid activating the SCG corresponding to the first network when the user equipment does not prefer to activate the SCG.
  • a method for configuring a secondary serving cell performed by user equipment including: when receiving a secondary serving cell activation indication from the first network, determining whether the user equipment is in the MUSIM state; and When the user equipment is in the MUSIM state, the secondary serving cell activation indicated by the secondary serving cell activation indication is not performed, and an indication message indicating that the user equipment is in the MUSIM state is sent to the first network.
  • Figure 1 is a schematic diagram for an example of a MUSIM capable user equipment mentioned in this specification.
  • FIG. 2 is an exemplary flowchart for illustrating a method performed by a user equipment provided in the first embodiment of this specification.
  • FIG. 3 is another exemplary flowchart for illustrating the method performed by the user equipment provided by the first embodiment in this specification.
  • FIG. 4 is an exemplary flowchart for illustrating a method performed by a user equipment provided in the second embodiment of this specification.
  • Figure 5 is used to illustrate the third embodiment in this specification provided by the user equipment.
  • FIG. 6 is an exemplary flowchart for illustrating a method for performing synchronous reconfiguration by user equipment according to the fourth embodiment of this specification.
  • FIG. 7 is another exemplary flowchart for illustrating a method for performing synchronous reconfiguration by user equipment according to the fourth embodiment of this specification.
  • FIG. 8 is an exemplary flow chart for illustrating a method of configuring a secondary serving cell performed by user equipment according to the fifth embodiment of this specification.
  • FIG. 9 is an exemplary flow chart for illustrating the addition of a secondary serving cell in the method of configuring a secondary serving cell performed by user equipment in the fifth embodiment of this specification.
  • FIG. 10 is an exemplary flowchart for illustrating the modification of the secondary serving cell in the method of configuring the secondary serving cell performed by the user equipment in the fifth embodiment of this specification.
  • FIG. 11 is an exemplary flowchart for illustrating a method performed by a user equipment provided in the sixth embodiment of this specification.
  • FIG. 12 is an exemplary flowchart for illustrating the MUSIM release indication processing process in the method performed by the user equipment provided in the sixth embodiment of this specification.
  • FIG. 13 is an exemplary flowchart for illustrating a method for restoring an RRC connection performed by a user equipment provided in the seventh embodiment of this specification.
  • FIG. 14 is an exemplary flowchart for illustrating a method for restoring an RRC connection performed by a user equipment provided in the eighth embodiment of this specification.
  • Figure 15 is a block diagram of user equipment provided in this specification.
  • NAS Non-access stratum, non-access layer.
  • AS access stratum, access layer.
  • RRC Radio Resource Control, radio resource control.
  • RRC_CONNECTED RRC connected state.
  • RRC_INACTIVE RRC inactive state.
  • RRC_IDLE RRC idle state.
  • RLC Radio Link Control, wireless link control.
  • CPA Conditional PSCell Addition, conditional PSCell increases.
  • CPC Conditional PSCell Change, conditional PSCell changes.
  • RAN Radio Access Network, wireless access layer.
  • BWP Bandwidth Part, bandwidth part.
  • USIM Universal Subscriber Identity Module, global user identification card.
  • MUSIM Multi-Universal Subscriber Identity Module, multiple global user identification cards.
  • Tx transmitter, sender.
  • Rx receiver, receiver.
  • New RAT new wireless access technology.
  • gNB Provides NR user plane and control plane protocol stacks (NR user plane and control plane protocol terminations) to UE, and connects to the base station node of the 5G core network through the NG interface.
  • NR user plane and control plane protocol stacks NR user plane and control plane protocol terminations
  • eNB Provides E-UTRAN user plane and control plane protocol stacks to UE, and is connected to the base station node of the EPC core network.
  • ng-eNB Provides E-UTRAN user plane and control plane protocol stacks to UE, and connects to the base station node of the 5G core network through the NG interface.
  • Dual connection or multi-connection means that a UE working in the RRC connection state establishes a physical wireless path with more than one network node and realizes data transmission.
  • a multi-Tx/Rx capable UE is configured to use resources provided by two network nodes connected through a non-ideal backhaul.
  • One of the network nodes serves as the master control node (Master Node, MN or MN gNB), and the other network node serves as the secondary control node (Secondary Node, SN or SN gNB).
  • the MN and SN are connected via a network interface and at least the MN is connected to the core network.
  • the MN can be executed by a gNB/eNB/ng-eNB.
  • the serving cell group controlled by the MN is called the Master Cell Group (MCG), that is, the MCG is associated with the MN.
  • MCG Master Cell Group
  • the UE performs the initial connection establishment process or initiates a connection on the PCell. Reconstruction process. If the MCG also contains other cells, they can be collectively called secondary serving cells SCell.
  • SN can be performed by one or more gNB/eNB/ng-eNB, and the serving cell group controlled by the SN is called a secondary serving cell group (SCG), that is, the SCG is associated with the SN.
  • SCG secondary serving cell group
  • the SCG contains at least one primary serving cell, which is called PSCell (Primary Second Cell).
  • PSCell Primary Second Cell
  • the UE When performing the synchronous reconfiguration (synchronous reconfiguration for SCG or SCG change) procedure, the UE performs random access on the PSCell (performed only when required). If the SCG also contains other cells, they can be collectively called secondary serving cells SCell.
  • a signaling radio bearer SRB can be established between the SN and the UE, usually called SRB3.
  • SRB3 is used for specific RRC messages transmitted on the DCCH logical channel, applicable to UEs in (NG)EN-DC or NR-DC. SRB3 can be used to deliver RRC messages between the SN and the UE, such as SCG-related measurement configuration and reports.
  • SpCell may refer to PCell of MCG or PSCell of SCG.
  • An SCG radio bearer is a radio bearer with one RLC bearer in SCG only or a radio bearer with two RLC bearers in a carrier aggregation group duplication.
  • the SCG radio bearer includes SCG signaling radio bearer SRB and SCG data radio bearer DRB.
  • SRB1 is used to carry all RRC messages using the DCCH logical channel and NAS messages before SRB2 is established.
  • SRB2 is used to carry NAS messages and all RRC messages containing recorded measurement information using the DCCH logical channel.
  • E-UTRA-NR dual connection E-UTRA is MN
  • NR is dual connection of SN and is connected to EPC.
  • NGEN-DC NG-RAN, E-UTRA-NR dual connection, and connected to the 5G core network 5GC.
  • NR DC NR-NR dual connection, if and only if the configured mrdc-SecondaryCellGroup is set to nr-SCG.
  • MR-DC Multi-Radio Dual Connectivity, multi-wireless dual connectivity, including (NG)EN-DC, NE-DC, NR-DC.
  • network or network node
  • base station or base station node
  • RAN can be used interchangeably.
  • the network can be a long-term evolution LTE network, an NR network, an enhanced long-term evolution eLTE network, or a subsequent evolution of 3GPP.
  • Other networks defined in the version.
  • user equipment UE may refer to a device that physically supports multiple USIM cards (two or more USIM cards), and the USIM may be a physical SIM or an eSIM (USIM can b e a physical SIM or eSIM).
  • the device is equipped with two or more USIM cards, and each USIM card is associated with a network (that is, an RRC connection is established with a network).
  • the multiple USIM cards can be from the same operator or different operators. From a network perspective, different USIM cards can correspond to different UEs, and each USIM card corresponds to one UE. Unless otherwise specified, this disclosure does not make this distinction.
  • the UE refers to a UE that supports multiple USIM cards or a UE corresponding to each USIM card in a device that supports multiple USIM cards.
  • User equipment configured with multiple USIM cards can receive and/or send data from multiple networks through time division multiplexing and other methods using single receive and single transmit or dual receive and single transmit.
  • a UE with two Tx and two Rx can send data to two networks at the same time, and can also receive data from two networks at the same time.
  • the hardware capabilities of MUSIM UE are shared by two SIM cards, and related capabilities are dynamically split between the two SIM cards.
  • SIM A of the UE is in the RRC connected state in network A
  • SIM B is in the RRC idle state or RRC inactive state in network B
  • two radio frequency links (RF chains) or two transceivers are occupied by SIM A. for communication with Network A.
  • SIM B needs to establish an RRC connection with Network B
  • one of the radio frequency links needs to be switched to SIM B.
  • network A does not know the changes in the UE's radio frequency link capabilities, it will lead to data loss and waste of wireless resources in network A.
  • the UE is configured with two USIM cards as an example. Those skilled in the art can easily extend it to the case of multiple USIM cards.
  • the masterCellGroup field is used to configure the master cell group MCG.
  • the spCellConfig field contains parameters of the SpCell corresponding to the cell group (ie, the PCell of the MCG or the PSCell of the SCG).
  • the reconfigurationWithSync field contains parameters for synchronous reconfiguration to the target SpCell.
  • the CellGroupConfig field is used to configure the primary cell group MCG or the secondary serving cell group SCG.
  • the scg-State field is used to indicate that the SCG is in an inactive state.
  • the base station indicates that the SCG is configured as an active state by not including the scg-State field in the RRC reconfiguration message RRCReconfiguration; and indicates that the SCG is configured as an inactive state by including the scg-State field in the RRC reconfiguration message.
  • the bfd-and-RLM field is used to indicate that the UE is Whether to perform beam failure detection (Beam Failure Detection, BFD) and radio link monitoring (Radio Link Monitoring, RLM).
  • BFD Beam Failure Detection
  • RLM Radio Link Monitoring
  • the secondaryCellGroup field contains the configuration of the SCG (for (NG)EN-DC or NR-DC), and the secondaryCellGroup field contains the CellGroupConfig field.
  • the CellGroupConfig field is used to configure an MCG or SCG.
  • a cell group consists of a MAC entity, a set of logical channels with associated RLC entities (a set of logical channels with associated RLC entities), a SpCell and one or more SCells.
  • the mrdc-SecondaryCellGroup field contains the RRC message for SCG configuration in NR-DC or NE-DC.
  • the mrdc-SecondaryCellGroup field contains the RRCReconfiguration message completely generated by the SN gNB.
  • the RRCReconfiguration message generated by the SN gNB Can contain secondaryCellGroup field, otherConfig field, conditionalReconfiguration field and measConfig field.
  • the otherConfig field contains configurations related to other configurations, such as configuring the UE to report auxiliary information to notify the gNB about the UE's discontinuous reception DRX preference for energy saving, etc.
  • the conditionalReconfiguration field configures candidate target SpCell(s) and execution conditions for conditional switching and conditional PSCell changes.
  • the measConfig field defines the measurements performed by the UE, covering intra-frequency (intra-Frequency), inter-frequency (inter-Frequency) and inter-RAT (inter-RAT) mobility and the configuration of the measurement interval.
  • the nr-SCG field is included in the mrdc-SecondaryCellGroup field and is used to indicate that the dual connection is NR-DC.
  • the RRC reconfiguration message contained in mrdc-SecondaryCellGroup is completely generated by SN gNB.
  • the sCellToAddModList field is used to indicate the list of added or modified SCells.
  • the sCellIndex field is used to identify a SCell.
  • the sCellState field indicates whether the SCell shall be considered to be in activated state upon SCell configuration. If the RRC reconfiguration message contains this field, and the field value is set to 'activated', it means that the SCell is in the activated state when configuring the SCell. If the RRC reconfiguration message does not contain this field, it means that the SCell is in the inactive state when configuring the SCell.
  • the firstActiveDownlinkBWP-Id field is used to configure SpCell and is included in the execution of RR
  • the identification ID of the downlink BWP activated during C reconfiguration or the identification ID of the downlink BWP used for RLM, BFD and measurement when the SCG is deactivated (only indicated when the RRC reconfiguration message indicates that the UE needs to perform RLM, BFD and measurement. This meaning); when used to configure SCell, this field contains the identification ID of the downlink BWP used when activating SCell.
  • firstActiveUplinkBWP-Id When firstActiveUplinkBWP-Id is used to configure SpCell, it contains the identification ID of the uplink BWP that is activated when performing RRC reconfiguration; when it is used to configure SCell, this field contains the identification ID of the uplink BWP used when activating SCell.
  • the sCellConfigCommon field corresponds to the ServingCellConfigCommon field that is used to configure configurable cell-specific parameters of the UE's serving cell.
  • the ServingCellConfigCommon field contains parameters obtained from the synchronization signal block SSB, main information block MIB or system information block SIB when the IDLE state UE accesses the cell.
  • the network When configuring SCell, the network provides this information through dedicated signaling containing this field.
  • the sCellConfigDedicated field corresponds to the ServingCellConfig field.
  • the ServingCellConfig field is used to configure (that is, add or modify) a serving cell for the UE.
  • This serving cell can be SpCell or SCell of MCG or SCG.
  • the VarConditionalReconfig variable contains the cumulative configuration including conditional switch CHO, conditional PSCell increase CPA, conditional PSCell change CPC configuration, including pointers to CHO, CPA, CPC execution conditions (associated measId(s)) and stored target candidate SpCell RRC reconfiguration (includes the accumulated configuration of the conditional handover, conditional PSCell addition or conditional PSCell change configurations including the pointers to conditional handover, conditional PSCell addition or conditional PSCell change execution condition (associated measId(s)) and the stored target candidate SpCell RRCReconfigur ation).
  • the condReconfigID field is used to identify a CHO, CPA, and CPC configuration.
  • the condRRRCReconfig field contains the RRC reconfiguration message that is applied when the conditions are met.
  • the condTriggerConfig field is used to configure CHO, CPA, and CPC and set the trigger conditions for CHO, CPA, and CPC.
  • the measId field is used to identify the measurement identity for which the reporting is being performed.
  • the DRB-Identity field is used to identify the DRB used by a UE.
  • the RLC-BearerConfig field is used to configure an RLC entity and the corresponding logic in the MAC.
  • Channel and association with the PDCP entity the radio bearer of the service.
  • the SCG failure information message that is, the SCGFailureInformation message, is used to provide information about the SCG failure detected by the UE.
  • the RRC Resume Request message RRCResumeRequest or RRCResumeRequest1 is used to request to resume a suspended RRC connection or perform a RAN-based Notification Area (RNA) update.
  • the UE may choose to request to resume an RRC connection with RRCResumeRequest or RRCResumeRequest1 based on whether SIB1 has sent (signal) useFullResumeID field (filed). If SIB1 sends the useFullResumeID field (filed), use RRCResumeRequest1 to request the restoration of an RRC connection. If SIB1 does not send the useFullResumeID field (filed), use RRCResumeRequest to request the restoration of an RRC connection.
  • the RRC Resume RRCResume message is used to resume the suspended RRC connection.
  • the RRC reconfiguration message RRCReconfiguration is an instruction to modify the RRC connection.
  • the UEAssistanceInformation message is used to indicate UE assistance information to the network.
  • the RRC reconfiguration completion message RRCReconfigurationComplete is used to confirm the successful completion of RRC connection reconfiguration.
  • the upper layer (such as the RRC layer) indicates to activate the SCG (the SCG in the active state)
  • it can be performed: transmitting SRS on the PSCell, reporting the CSI of the PSCell, monitoring the PDCCH on the PSCell, transmitting the PUCCH on the PSCell, etc.
  • the upper layer (such as the RRC layer) instructs to deactivate the SCG, you can perform the following steps: deactivate all SCells of the SCG, deactivate the SCG, clear the configured downlink allocation or type 2 uplink permission of the PSCell associated configuration, and suspend the type 1 associated with the PSCell. Configure uplink permission, reset MAC, etc.
  • the SCG in the inactive state does not transmit SRS on PSCell, does not report CSI of PSCell, does not transmit UL-SCH on PSCell, does not transmit PUCCH on PSCell, etc.
  • the UE believes that the SCG or SCell has been activated, which may mean that the UE instructs the lower layer to activate the SCG or SCell.
  • the UE performs data transmission with two network nodes, MN and SN, the UE only establishes an RRC connection with the MN.
  • MN network nodes
  • SN network nodes
  • the UE only establishes an RRC connection with the MN.
  • MUSIM MUSIM
  • the UE can establish RRC connections with the network through each SIM card.
  • FIG. 1 is a schematic diagram of a UE with MUSIM capability in dual connectivity in network A.
  • SIM card A of the UE establishes an RRC connection with network A (denoted as the first network).
  • Card B establishes an RRC connection with network B (denoted as the second network), and the UE is configured with dual connectivity by network A.
  • Network A is the MN and network C is the SN.
  • the embodiment of the present disclosure is based on the scenario described in Figure 1 .
  • FIG. 2 is an exemplary flowchart for illustrating a method performed by a user equipment provided in the first embodiment of this specification.
  • the user equipment is in the RRC connected state in the first network, and is configured in the first network to need to perform secondary serving cell group network quality detection.
  • the secondary serving cell group where the user equipment is located is in an inactive state.
  • Network quality detection can include RLM and BFD.
  • a secondary serving cell group failure information message transmission process is initiated to the first network.
  • the secondary serving cell failure information message transmission process is used to send to the first network a message indicating that the secondary serving cell group has failed.
  • a secondary serving cell group failure information message indicating that the secondary serving cell group where the user equipment is located in the network has expired. For example, when a beam failure is detected, it may be determined that the secondary serving cell group failure is detected.
  • the secondary serving cell group failure information message transmission process may include S206 to S212.
  • the MUSIM state refers to a state in which the user equipment's capabilities are limited, or in other words, a state in which the user equipment can only use part of its capabilities to communicate with the first network.
  • the following situation belongs to one of the MUSIM states: the user equipment including multiple SIMs is in the RRC connection state in the first network and maintains an RRC connection with a second network different from the first network, and the user equipment preference is not the same. Release the RRC connection with the second network.
  • the user equipment can be determined to be in the MUSIM state when any of the following conditions is met: the user equipment is in the RRC connection state in a second network different from the first network; the user equipment is in the second network Perform uplink data transmission or downlink data transmission; the secondary serving cell group where the user equipment is located in the first network cannot be activated; the secondary serving cell group where the user equipment is located in the first network cannot be configured; the user equipment is located in the first network It is preferred not to activate the secondary serving cell group in the network; the user equipment is in a limited user equipment capability state in the first network; some hardware functions of the user equipment are occupied and cannot be used for the user equipment in the first network data transmission.
  • the secondary serving cell group failure information message includes MUSIM indication information indicating that the user equipment is in the MUSIM state.
  • MUSIM indication information indicating that the user equipment is in the MUSIM state.
  • the MUSIM indication message can be included in the secondary serving cell group failure information message in any of the following ways: adding a field for indicating that the user equipment is in the MUSIM state in the secondary serving cell group failure information message; In the serving cell group failure information message, the field used to indicate the cause of the secondary serving cell group failure is assigned a value used to indicate that the user equipment is in the MUSIM state.
  • a secondary serving cell group failure information message including MUSIM indication information is sent to the first network.
  • the first network can know that the secondary serving cell group of the user equipment has expired, and can configure a new secondary serving cell for the user equipment.
  • the received secondary serving cell group failure information message includes MUSIM indication information
  • the first network will consider the fact that the user equipment is in the MUSIM state when configuring a new secondary serving cell for the user equipment to avoid configuring a new secondary serving cell for the user equipment. Configure activated SCG. This can prevent problems such as resource waste and data loss caused by the inability to successfully transmit data through the SCG due to some hardware resources of the user equipment being occupied even if the SCG is activated.
  • a secondary serving cell group failure information message not including MUSIM indication information indicating that the user equipment is in the MUSIM state is generated.
  • a secondary serving cell group failure information message excluding MUSIM indication information indicating that the user equipment is in the MUSIM state is sent to the first network.
  • FIG. 3 is another exemplary flowchart for illustrating the method performed by the user equipment provided by the first embodiment in this specification.
  • the next secondary serving cell group failure information message transmission process is performed.
  • whether the user equipment is allowed to be used may be configured by the first network part of the hardware capability to communicate with the first network. It should be noted that allowing the use of part of the hardware capabilities of the user equipment to communicate with the first network can be expressed as the UE is configured to report that the UE capabilities are restricted in the first network for MUSIM purposes (or report that the UE capabilities are restricted in the first network or report UE capabilities used in the first network) auxiliary information.
  • the secondary serving cell group failure information message transmission process may be performed when the user equipment is configured by the first network to allow communication with the first network using only part of the hardware capabilities of the user equipment, that is, determining whether the user equipment is in the MUSIM state. operation. Furthermore, when the user equipment is in the MUSIM state, the secondary serving cell group failure information message includes MUSIM indication information indicating that the user equipment is in the MUSIM state. In this case, the user device needs to notify that it is in the MUSIM state.
  • the user equipment when the user equipment is configured by the first network to not allow only part of the hardware capabilities of the user equipment to communicate with the first network or is not configured by the first network to allow only part of the hardware capabilities of the user equipment to communicate with the first network
  • the RRC connection with the first network when the user equipment needs to establish an RRC connection with the second network, the RRC connection with the first network will be released. That is, in this case, there is no MUSIM state.
  • Embodiment 1 of the present disclosure is dedicated to solving the problem that a UE with at least dual-receive and dual-transmit capabilities detects that the PSCell beam of the SCG in the inactive state fails when both network A and network B are in the RRC connection state, but the UE considers that network B has priority. Relevant issues involved in sending an SCG invalidation information message to network A at a higher level to avoid network A configuring an active SCG for the UE after receiving the SCG invalidation information message.
  • the UE is in dual links in network A, where the SCG is in an inactive state but is configured to perform beam failure detection and wireless link monitoring.
  • the UE receives the RRC reconfiguration message from the base station, which contains the configuration information of the SCG (that is, the RRC reconfiguration message contains the secondaryCellGroup field or the mrdc-SecondaryCellGroup field), and the SCG is configured as an inactive state but needs to perform BFD and RLM (that is, the SCG configuration information contains the bfd-and-RLM field, and its value is set to "true").
  • the UE configures the SCG according to the received RRC reconfiguration message.
  • the UE When the SCG is in the inactive state and PSCell beam failure is detected, the UE initiates the SCG failure information transmission process, which specifically includes at least one of the following:
  • Stop the SCG timer T304 (the SCG's T304 is executed when it is running); T304 is started when receiving the RRC reconfiguration message containing the synchronous reconfiguration of the SCG configured as inactive (start upon reception of RRCReconfiguration including reconfigurationWithSync for the SCGnot indicated as deactivated in the NR message containing the RRCReconfiguration message), stops when random access is successfully completed on the SpCell or the SCG is released.
  • Transmitting the SCG failure information message SCGFaulureInformation includes the following operations:
  • the UE sets the content of the SCGFaulureInformation message as follows:
  • the UE initiates transmission of the SCGFailureInformation message due to detection of beam failure of the PSCell and the SCG is deactivated (if the UE initates transmission of the SCGFaulureInformation message due to beam failure of the PSCell while the SCG is dectivated), then further determine whether the UE is in the MUSIM state . If the UE is in the MUSIM state, the SCGFailureInformation message contains indication information that the UE is in the MUSIM state; otherwise, the SCGFailureInformation message does not contain the indication information that the UE is in the MUSIM state.
  • the indication information that the UE is in the MUSIM state can be implemented through the following implementation methods:
  • a new field musim is added to the SCGFailureInformation message to indicate that the UE is in the MUSIM state. Specifically, if the UE is in the MUSIM state, set the failureType field value in the SCGFailureInformation message to indicate the cause to "other" and set the failureType-v1610 in the SCGFailureInformation message to further indicate the cause to "beamFailure", and include the musim field to Indicate that the UE is in the MUSIM state or set the value of field musim to a value indicating that the UE is in the MUSIM state, such as "true”; if the UE is not in the MUSIM state, set the failureType and value to "other” and set failureType-v1610 to "beamFailure” , and SCGFa
  • the ilureInformation message does not contain the musim field or the SCGFailureInformation message contains the musim field but its value is set to a value corresponding to
  • the value of a field used to indicate the cause of SCG failure (such as the failureType-vi610 field) is added, and a new value is set for the field to indicate that the UE is in the MUSIM state or the UE that has SCG beam failure is in the MUSIM state.
  • the MUSIM state or the UE in the MUSIM state suffers from SCG beam failure or the UE is in the MUSIM state and the SCG beam fails.
  • failureType-v1610 is "musim" it means that the UE is in the USIM state or it means that the UE in the MUSIM state detects the failure of the PSCell beam of the inactive SCG.
  • the network may determine the state of the SCG to be reconfigured for the UE according to whether the message contains an indication indicating that the UE is in the MUSIM state. For example, if the SCG failure information message received by the network contains an indication that the UE is in the MUSIM state, the SCG reconfigured for the UE is set to the inactive state. Otherwise, the SCG can be set to the active state.
  • the UE in the MUSIM state includes: the UE is in the RRC connected state in network B, the UE is performing a MUSIM operation (that is, the UE is performing or needs to perform a MUSIM operation that cannot be completed within the MUSIM interval), the UE is in the two networks at the same time.
  • the UE does not prefer to activate the SCG (that is, the UE prefers not to activate the SCG or the UE prefers that the SCG is in an inactive state), some UE capabilities (such as transceivers or radio frequency links) ) is occupied (or occupied by another network), communication with network A can only use part of the UE capabilities, the UE's UE capabilities in network A are limited, the UE is in a UE capability-limited state in network A, and the UE preference is limited to the network A's UE capabilities and UE capabilities are shared among multiple networks at the same time.
  • the UE in the MUSIM state also includes: the UE does not expect to activate the SCell, the UE does not expect to activate the SCell with different frequencies from the PCell, the UE prefers the SCell to be in the inactive state, and the UE prefers the SCell with the different frequency to the PCell to be in the inactive state.
  • the UE believes that network B has a higher priority including: the UE does not release the RRC connection with network B, the UE prefers to maintain the MUSIM state, the UE prefers not to activate the SCG, the UE prefers not to activate the SCell, and the UE prefers not to activate the SCell.
  • PSCell inter-frequency SCell.
  • the condition that the UE is in the MUSIM state can be replaced by that the UE believes that network B has a higher priority or that the UE is in the MUSIM state and believes that network B has a higher priority.
  • the condition for determining whether the UE is in the MUSIM state can be replaced by determining whether the UE is in the MUSIM state only when the UE is configured by network A to allow the UE to request to enter the MUSIM state, that is, if the UE is configured The UE is allowed to request to enter the MUSIM state, and the UE is in the MUSIM state, then perform the operations that should be performed when the UE is in the MUSIM state in the embodiment.
  • the base station can use the RRC reconfiguration message to configure whether to allow the UE to request to enter the MUSIM state (or configure whether to allow the UE to request to enter the MUSIM state or request to be in the UE capability restricted state, or configure whether to allow the UE to request to limit the UE capability).
  • the UE is not in the MUSIM state, it means that the UE is in the RRC connected state in only one of the networks (for example, network A) or the UE does not perform a MUSIM operation or the SCG can be activated or the SCG can be configured or the UE capability (such as a transceiver or radio frequency chain) path) is not occupied by other networks or communication with network A can use all UE capabilities or the UE's UE capabilities in network A are not limited or the UE is not in a UE capability-limited state in network A or the UE preferences are not limited to network A's UE capabilities.
  • the UE not being in the MUSIM state also includes: the SCell can be activated, the SCell with different frequencies from the PCell can be activated, the UE does not prefer the SCell to be in the inactive state, and the UE does not prefer the SCell with the different frequency to the PCell to be in the inactive state.
  • replacing the UE in the MUSIM state with the fact that the UE is configured can request to enter or exit the MUSIM state and the embodiment obtained by the UE being in the MUSIM state is also within the scope of protection of this disclosure
  • replacing the UE not in the MUSIM state with the fact that the UE is configured Embodiments in which entry or exit of the MUSIM state may be requested and the UE is not in the MUSIM state or if the UE is not configured may be requested to enter or exit the MUSIM state are also within the scope of the present disclosure.
  • the UE's request to exit the MUSIM state may include: the UE releases the RRC connection in network B, the UE does not perform a MUSIM operation (that is, the UE does not perform or does not need to perform a MUSIM operation that cannot be completed within the MUSIM interval), the UE is only in the first network RRC connected state or SCG can be activated or SCG can be configured, UE capabilities (such as transceivers or radio frequency links) are not occupied (or occupied by another network), communication with network A can use all UE capabilities, UE The UE capabilities in network A are not limited, the UE is not in a UE capability-limited state in network A, and the UE preferences are not limited to the UE capabilities in network A. In the carrier aggregation scenario, the UE not in the MUSIM state also includes: it can activate SCell, and it can activate SCell with different frequency than PCell.
  • Network A can configure the UE through the RRC reconfiguration message whether to allow the UE to request to enter or exit the MUSIM state or whether to allow the UE to request to limit the UE capabilities in the current network.
  • Network A configures information that allows the UE to indicate to the network whether the UE is in the MUSIM state only when the UE enters or exits the MUSIM state. If the UE is configured by network A to request to enter or exit the MUSIM state, then when the UE needs to enter the MUSIM state, it sends an RRC message containing indication information requesting to enter the MUSIM state to network A. For example, if the UE is configured by network A, it can request to enter the MUSIM state.
  • the UE When the UE needs to establish an RRC connection with network B, it requests to network A to enter the MUSIM state. When the UE releases the RRC connection with network B, it can indicate to network A The UE exits the MUSIM state so that Network A can use all UE capabilities.
  • configuring the UE to allow the UE to request to enter or exit the MUSIM state can be replaced by allowing the UE to request UE capabilities limited to the current network, or allowing the use of part of the hardware capabilities of the user equipment to communicate with the first network, or configuring the UE to The MUSIM purpose reports the auxiliary information that limits the UE's capabilities in the first network, or configures the UE for the MUSIM purpose to report the auxiliary information that limits the UE's capabilities in the first network, or configures the UE for the MUSIM purpose to report the UE used in the first network Capability auxiliary information, or auxiliary information for the UE configured for MUSIM purposes to report entering or exiting the UE's capability limited state in the first network, in the embodiments of the present disclosure, any one of these description methods is used to obtain the embodiment. It is also within the scope of this manual.
  • FIG. 4 is an exemplary flowchart for illustrating a method performed by a user equipment provided in the second embodiment of this specification.
  • an RRC reconfiguration message from the first network is received.
  • the RRC reconfiguration message is used to configure a new secondary serving cell group and configure the new secondary serving cell group into an active state, or to activate an existing secondary serving cell group.
  • the received RRC reconfiguration message includes configuration information for configuring a new secondary serving cell group and configuring the new secondary serving cell group into an active state, or includes configuration information for activating an existing secondary serving cell group.
  • an indication message indicating that the user equipment is in the MUSIM state is sent to the first network.
  • the user equipment when the user equipment is in the MUSIM state, if the RRC reconfiguration message is used to configure a new secondary serving cell group and configure the new secondary serving cell group as an active state, the user equipment The device does not perform the secondary serving cell group configuration indicated by the RRC reconfiguration message. At this time, the indication message includes information that the secondary serving cell group configuration has not been performed.
  • the user equipment when the user equipment is in the MUSIM state, if the RRC reconfiguration message is used to configure the new secondary serving cell group and configure the new secondary serving cell group to be active, the user equipment performs the instructions indicated in the RRC reconfiguration message. Secondary serving cell group configuration, but the configured new secondary serving cell group is not activated. At this time, the indication message includes information that the new secondary serving cell group is not activated.
  • the user equipment when the user equipment is in the MUSIM state, if the RRC reconfiguration message is used to activate an existing secondary serving cell group, the user equipment does not perform the secondary serving cell group activation indicated by the RRC reconfiguration message. At this time, the indication message includes information that activation of the secondary serving cell group has not been performed.
  • the user equipment can also determine whether its currently available resources are sufficient to activate a new secondary serving cell group or an existing secondary serving cell group.
  • the new secondary serving cell group or the existing secondary serving cell group can be activated regardless of whether the user equipment is in MUSIM mode.
  • How to determine whether the currently available resources are sufficient to activate a new secondary serving cell group or an existing secondary serving cell group can be implemented, for example, by the internal logic of the user equipment, and the internal logic can be provided by the provider of the user equipment. As an example, it can be determined by whether the occupancy rate of the hardware resource is lower than a given threshold or the like.
  • whether to allow use of part of the hardware capabilities of the user equipment to communicate with the first network may be configured by the first network.
  • the operation of whether the user equipment is in the MUSIM state may be determined to be performed when the user equipment is configured by the first network to allow communication with the first network using only part of the hardware capabilities of the user equipment.
  • Embodiment 2 of the present disclosure is dedicated to solving the problem that when a UE with at least dual-receiving and dual-transmitting capabilities is in the RRC connected state, network A configures an SCG for the UE or network A instructs the UE to activate the SCG in the inactive state but the UE Relevant issues involved when in the MUSIM state, in order to prevent the UE in the MUSIM state from activating the SCG and make the SCG state in the UE and network A consistent.
  • the RRC reconfiguration message is used to configure the SCG and indicates that the SCG is in the active state or the RRC reconfiguration message is used to activate the SCG. Specifically, it includes the following: Condition:
  • Scenario 1 (MN configures and activates SCG):
  • the UE receives the RRC reconfiguration message from network A (MN) (in the embodiment of this disclosure, it refers to the RRC reconfiguration message generated by the MN and sent in SRB1 and not included in other RRC messages. message), the RRC reconfiguration message is transmitted on SRB1, which contains the configuration information of the SCG, that is, the configuration information of the SCG is provided by including the secondaryCellGroup field in the RRC reconfiguration message (that is, the RRC reconfiguration message is generated by the MN) , and SCG is configured in the active state. This is for the case where the RRC reconfiguration message is used to configure SCG for the UE, which has not been configured with SCG before.
  • the UE can configure the SCG according to the SCG configuration information carried in the RRC reconfiguration message but not activate the SCG, and the UE indicates to Network A (or MN) that the UE is in the MUSIM state. Or information used to indicate that the SCG has been configured but has not been activated (for example, indicated in the RRC reconfiguration complete message).
  • the UE may also indicate to network A that the UE is in the MUSIM state without configuring the SCG or may be used to indicate that the SCG is not configured. information (for example, indicated in the RRC reconfiguration complete message).
  • the specific steps include: if the RRC reconfiguration message does not contain mrdc-SecondaryCellGroupConfig (an optional condition at this time) and if the RRC reconfiguration message does not contain scg- State and the UE is not in the MUSIM state, the SCG activation process without an SN message is performed; optionally, if the RRC reconfiguration message does not contain scg-State and the UE is in the MUSIM state, the UE indicates to the network MN that the UE is in the MUSIM state. Information or related information used to indicate that the SCG has been configured but has not been activated (for example, indicated in the RRC Reconfiguration Complete RRCReconfigurationComplete message). In this case, the UE does not activate the SCG.
  • the UE if the UE does not configure the SCG, it specifically includes: if the RRC reconfiguration message contains the configuration information of the SCG and the SCG is configured in an inactive state, or if the RRC reconfiguration message contains the configuration information of the SCG and If the SCG is configured in the active state but the UE is not in the MISIM state, the cell group configuration of the SCG is performed.
  • the UE indicates to the network MN the information that the UE is in the MUSIM state or the relevant information used to indicate that the SCG is not configured (such as indicated in the RRC Reconfiguration Complete RRCReconfigurationComplete message). In this case, The UE does not perform cell group configuration of the SCG.
  • Case 2 MN activates the configured SCG: The UE receives the RRC reconfiguration message from network A (MN).
  • the RRC reconfiguration message is transmitted on SRB1 and does not contain scg-State to indicate activation of the configured SCG. This is the case where the MN activates the configured SCG. In this case, if the UE is in MUSIM state and the UE considers that network B has a higher priority, the SCG is not activated. If the UE decides not to activate the SCG, the UE indicates to the network MN information that the UE is in the MUSIM state or information used to indicate that the SCG is not activated (for example, indicated in the RRC reconfiguration complete message).
  • the RRC reconfiguration message is received from SRB1 and the UE is in NR-DC and the RRC reconfiguration message does not contain mrdc-SecondaryCellGroupConfig (this condition is optional) and if the RRC reconfiguration message does not contain scg -State and the UE is not in the MUSIM state, then perform the SCG activation process without SN message; if the RRC reconfiguration message is received from SRB1 and the UE is in NR-DC and the RRC reconfiguration message does not contain mrdc-SecondaryCellGroupConfig and if the The RRC reconfiguration message does not contain scg-State but the UE is in the MUSIM state, then the UE indicates to the network MN the information that the UE is in the MUSIM state or the information used to indicate that the SCG is not activated (for example, indicated in the RRC reconfiguration complete message) , in this case, the UE does not activate the SCG.
  • Scenario 3 (SN configures SCG and MN activates SCG):
  • the UE receives the first RRC reconfiguration message containing the hr-SCG field in the mrdc-SecondaryCellGroup field on SRB1, and the RRC message containing the first RRC reconfiguration message ( For example, the second RRC reconfiguration message) does not include the scg-State field to indicate that the SCG is configured in the active state.
  • the configuration information of the SCG is completely provided by the SN, and the MN configures the SCG to be in an active state.
  • the UE may not configure the SCG or the UE configures but does not activate the SCG.
  • the UE indicates to the network MN and/or SN that the UE is in the MUSIM state or the SCG is not configured. information or information that the SCG has been configured but not activated.
  • the UE if it adopts the method of not configuring SCG, it specifically includes: if the first RRC reconfiguration message is an RRC reconfiguration message containing the nr-SCG field in the mrdc-SecondaryCellGroup field and if the first RRC reconfiguration message is received on SRB1. If the reconfiguration message contains secondaryCellGroup, then:
  • the RRC message containing the first RRC reconfiguration message contains scg-State, perform SCG cell group configuration; if the RRC message containing the first RRC reconfiguration message does not contain scg-State and the UE is not in In the MUSIM state, the cell group configuration of the SCG is performed; conversely, if the RRC message containing the first RRC reconfiguration message does not contain scg-State and the UE is in the MUSIM state, the cell group configuration of the SCG is not performed; optional , if the first RRC reconfiguration message containing the nr-SCG field in the mrdc-SecondaryCellGroup field is received on SRB1, and the RRC message containing the first RRC reconfiguration message (for example, the second RRC reconfiguration message) does not contain scg-State and the UE is in the MUSIM state, the UE indicates to the network MN and/or SN the information that the UE is in the MUSIM state or the
  • the UE if it adopts the configuration SCG but does not activate the SCG, it specifically includes: if the first RRC reconfiguration message is an RRC reconfiguration message containing the nr-SCG field in the mrdc-SecondaryCellGroup field and if the first RRC reconfiguration message is received on SRB1 and if the The first RRC reconfiguration message contains secondaryCellGroup, then:
  • the first RRC reconfiguration message is an RRC reconfiguration message containing the hr-SCG field in the mrdc-SecondaryCellGroup field received on SRB1, and the RRC message containing the first RRC reconfiguration message does not contain scg -State, if the UE is not in the MUSIM state, configure the SCG and perform the SCG activation operation; optionally, if the RRC message containing the first RRC reconfiguration message does not contain scg-State, but the UE is in the MUSIM state, Then the SCG is configured and the UE indicates to Network A (MN and/or SN) the information that the UE is in the MUSIM state or the SCG has been configured but not activated.
  • Network A MN and/or SN
  • Scenario 4 (SN-initiated SCG change and MN activates SCG):
  • the UE receives the first RRC reconfiguration message containing the nr-SCG field in the mrdc-SecondaryCellGroup field on SRB1, and the RRC containing the first RRC reconfiguration message
  • the scg-State field is not included in the message (for example, the second RRC reconfiguration message) to indicate that the SCG is configured as an active state, if the spCellConfig field in the nr-SCG field contains reconfigurationWithSync:
  • the UE does not initiate random access until it exits the MUSIM state; or, if the UE is in the MUSIM state, the UE indicates in the response message that the UE is in the MUSIM state (the UE does not initiate random access on the PSCell at this time).
  • the response message may be an RRC reconfiguration completion message.
  • the indication information that the UE is in the MUSIM state may be indicated only in the response message sent to the MN, or may be indicated only in the response message forwarded to the SN through the MN, or may be indicated simultaneously in The response message sent to the MN and indicated in the response message forwarded by the MN to the SN.
  • MUSIM and DAPS cannot be configured at the same time, or if the UE is in the MUSIM state, DAPS switching cannot be configured.
  • FIG. 5 is an exemplary flowchart for illustrating a method for performing synchronous reconfiguration by user equipment according to the third embodiment of this specification.
  • an RRC reconfiguration message is received from the first network.
  • the configuration information for the secondary serving cell group may be, for example, the configuration information for changing the secondary serving cell group.
  • the RRC reconfiguration message may indicate configuring the target secondary serving cell group.
  • the so-called secondary serving cell group change here refers to changing at least the primary and secondary cells PSCell of the secondary serving cell group, that is, changing from the current primary and secondary cells to a target primary and secondary cell that is different from the current primary and secondary cells.
  • the configuration information for the secondary serving cell group may also be, for example, configuration information used to change the secondary serving cell group where the user equipment is currently located.
  • the RRC reconfiguration message may indicate changing the secondary serving cell group where the user equipment is currently located.
  • change refers to changing the configurable parameters of the current secondary serving cell group, such as configuring the secondary serving cell group to be in an active state, adding or releasing SCells of the secondary serving cell group.
  • the secondary serving cell group configuration including making the secondary serving cell group active is not performed, and a message indicating that the user equipment is in the active state is sent to the network. MUSIM status response message.
  • the so-called non-execution includes synchronous reconfiguration of the secondary serving cell group in the active state. For example, it may be not executing the secondary serving cell group configuration indicated by the RRC reconfiguration message, or executing the secondary serving cell group configuration but not making the secondary serving cell group. Active state (that is, the secondary serving cell group is inactive state).
  • RRC reconfiguration message does not include configuration information for the secondary serving cell group (No in S504) or the user equipment is not in the MUSIM state (No in S506), then in S510, perform reconfiguration indicated by the RRC reconfiguration message.
  • a UE with at least dual-receive and dual-transmit capabilities receives an RRC reconfiguration message from network A instructing the UE to perform a synchronous reconfiguration process, which contains an indication of activating SCG but the UE thinks Related issues involved when network B has a higher priority to avoid UE in MUSIM state from activating SCG and make the SCG state in UE and network A consistent.
  • the UE implements synchronous reconfiguration or handover the current MCG or SCG is called the source MCG or source SCG, and the MCG or SCG to which the UE is synchronously reconfigured or handed over is called the target MCG or target SCG.
  • the UE receives the RRC reconfiguration message for handover from the MN (that is, the RRC reconfiguration message contains the masterCellGroup field, and the spCellConfig field contained in the masterCellGroup field contains the reconfigurationWithSync field, that is, the synchronous reconfiguration of the MCG) Examples of operations performed.
  • the UE receives the RRC reconfiguration message for handover from the MN. If one of the following conditions A1-A3 is met, the UE performs synchronous reconfiguration (reconfiguration with sync). For details, see the latest version of TS38.331;
  • the RRC reconfiguration message does not contain the configuration information of the SCG (that is, the RRC reconfiguration message does not contain the secondaryCellGroup field and the mrdc-SecondaryCellGroupConfig field).
  • the RRC reconfiguration message contains the configuration information of the SCG (that is, the RRC reconfiguration message contains the secondaryCellGroup field or the mrdc-SecondaryCellGroupConfig field), and the received RRC reconfiguration message contains the scg-State field.
  • the RRC reconfiguration message contains SCG configuration information (i.e. RRC reconfiguration
  • the configuration message contains the secondaryCellGroup field or the mrdc-SecondaryCellGroupConfig field), and the received RRC reconfiguration message does not contain the scg-State field, and the UE is not in the MUSIM state.
  • the UE receives the RRC reconfiguration message for handover from network A (MN), if the following condition B is met:
  • the RRC reconfiguration message contains SCG configuration information, and the received RRC reconfiguration message does not contain the scg-State field, and the UE is in the MUSIM state.
  • the UE indicates in the response message the information related to the MUSIM state of the UE (at this time, the UE does not perform synchronous reconfiguration, the RRC reconfiguration process ends, and optionally, the UE restores the original configuration); in
  • the UE performs MCG synchronization reconfiguration and configures the SCG but does not activate or configure the SCG, and indicates in the response message information related to the MUSIM state of the UE or information indicating that the SCG has been configured but not activated, or indicates that the SCG Unconfigured information.
  • the response message may be an RRC reconfiguration completion message RRCReconfigurationComplete.
  • a UE with at least dual receiving and dual transmitting capabilities receives an RRC reconfiguration message from network A instructing the UE to perform SCG. Change the process, but the related issues involved when the UE is in the MUSIM state, to avoid the UE in the MUSIM state from activating the SCG and make the SCG state in the UE and network A consistent.
  • the UE receives an RRC reconfiguration message for changing the SCG from the MN (that is, the RRC reconfiguration message contains the secondaryCellGroup field or the mrdc-SecondaryCellGroupConfig field, and the secondaryCellGroup field or the spCellConfig field contained in the mrdc-SecondaryCellGroupConfig field contains reconfigurationWithSync field, that is, an example of operations performed during synchronous reconfiguration of SCG).
  • the RRC reconfiguration message contains the secondaryCellGroup field or the mrdc-SecondaryCellGroupConfig field, and the secondaryCellGroup field or the spCellConfig field contained in the mrdc-SecondaryCellGroupConfig field contains reconfigurationWithSync field, that is, an example of operations performed during synchronous reconfiguration of SCG).
  • the UE receives the RRC reconfiguration message for changing the SCG from the network A (MN). If one of the following conditions C1-C4 is met, the UE performs SCG synchronization reconfiguration (reconfiguration with sync) (also Called SCG change), see the latest version of TS38.331 for details;:
  • the received RRC reconfiguration message contains the scg-State field.
  • Condition C2 The received RRC reconfiguration message does not contain the scg-State field, and the UE is not in the MUSIM state.
  • Condition C4 The RRC message containing the RRC reconfiguration message does not contain the scg-State field, and the UE is not in the MUSIM state.
  • the UE receives the RRC reconfiguration message from the MN for changing the SCG if one of the following conditions D1-D2 is met:
  • Condition D1 The received RRC reconfiguration message does not contain the scg-State field, and the UE is in the MUSIM state.
  • Condition D2 The RRC message containing the RRC reconfiguration message does not contain the scg-State field, and the UE is in the MUSIM state.
  • the UE indicates in the response message information related to the UE being in the MUSIM state (at this time, the UE does not perform SCG synchronization reconfiguration, the RRC reconfiguration process ends, and optionally, the UE restores the original configuration) or indicates Information related to SCG synchronization reconfiguration not being executed; in another implementation, the UE executes SCG synchronization reconfiguration according to the RRC reconfiguration message but considers that the SCG is deactivated, that is, according to the scg-State field contained in the RRC reconfiguration message.
  • the UE indicates in the response message relevant information that the UE is in the MUSIM state or indicates that the SCG synchronization reconfiguration has been executed but the SCG is not activated.
  • the response message may be an RRC reconfiguration completion message RRCReconfigurationComplete.
  • the indication information that the UE is in the MUSIM state can be indicated only in the response message sent to the MN, or only in the response message forwarded to the SN through the MN, or at the same time in the response message sent to the MN and forwarded to the SN through the MN. Indicated in the SN's response message.
  • the UE initiates the SCG invalidation information transmission process and indicates in the SCG invalidation information message that the UE is in the MUSIM state.
  • the RRC message including the RRC reconfiguration message may be an RRC reconfiguration message or an RRC recovery message.
  • the fourth embodiment of this specification provides a method for user equipment to perform conditional synchronization reconfiguration, including: when the user equipment is in the MUSIM state, even if the user equipment is configured to need to perform conditional reconfiguration, the conditional reconfiguration is not performed. configuration; and when the user device is not in MUSIM state and the user equipment is configured to need to perform conditional reconfiguration, and when the evaluation result after conditional evaluation of performing conditional reconfiguration is that the reconfiguration condition is met, conditional reconfiguration is performed.
  • FIG. 6 is an exemplary flowchart for illustrating a method for performing synchronous reconfiguration by user equipment according to the fourth embodiment of this specification.
  • conditional reconfiguration is performed.
  • conditional reconfiguration is not performed.
  • SCG activation after conditional reconfiguration is performed is avoided.
  • FIG. 7 is another exemplary flowchart for illustrating a method for performing synchronous reconfiguration by user equipment according to the fourth embodiment of this specification.
  • conditional reconfiguration is not performed. Thus, SCG activation after conditional reconfiguration is performed is avoided. If the user equipment is not in the MUSIM state, then in S710, conditional reconfiguration is performed.
  • conditional reconfiguration is not performed.
  • a message indicating that the user equipment is in the MUSIM state may be sent to the network.
  • the user equipment is configured by the first network to allow communication with the first network using only part of the hardware capabilities of the user equipment, if it is determined that the user equipment is in the MUSIM state, even if the user equipment is configured to need to perform conditional reconfiguration , nor perform conditional reconfiguration corresponding to the conditional reconfiguration information. This is to avoid activating the secondary server after performing a conditional reconfiguration. Block.
  • Conditional synchronization reconfiguration/conditional PSCell increase/conditional SCG change (CHO/CPA/CPC)
  • the UE When a UE with at least dual reception and dual transmission capabilities is in the RRC connected state of both the first network (denoted as network A) and the second network (denoted as network B), the UE is configured with CHO, CPA or CPC.
  • CHO or CPA Or the CPC conditions are met, but the related issues involved when the UE is in the MUSIM state are to prevent the UE in the MUSIM state from activating the SCG and make the SCG state in the UE and network A consistent.
  • the condition reconfiguration described in the following embodiments includes: CHO, CPA, and CPC.
  • the UE stops evaluation of conditional reconfiguration when the UE is in the MUSIM state or is configured by Network A to enter (or be in) the MUSIM state.
  • the UE stops the evaluation of conditional reconfiguration. This is because if the UE performs evaluation of conditional reconfiguration, when the UE detects that the condition is met, it needs to perform CHO or CPA, both of which may activate the SCG.
  • conditional reconfiguration When the UE exits the MUSIM state (or the UE is not in the MUSIM state or sends a request to exit the MUSIM state to Network A), if conditional reconfiguration is configured, the UE starts the evaluation of conditional reconfiguration. Optionally, only when the RRC reconfiguration message for executing CHO contains SCG configuration information but does not contain scg-State, the evaluation of CHO's conditional reconfiguration will be stopped.
  • conditional reconfiguration execution process is started. If the UE is configured with conditional reconfiguration and the evaluation conditions for conditional reconfiguration are met, and if the UE is in the MUSIM state, the UE indicates to network A the information related to the UE being in the MUSIM state or performs conditional reconfiguration when the UE exits the MUSIM state.
  • conditional reconfiguration is satisfied when, for each condReconfigID in the variable VarConditionalReconfig, the events associated with all measIds in the condTriggerConfig of the target candidate cell in the saved condRRCReconfig are satisfied.
  • conditional reconfiguration will be performed when the UE exits the MUSIM state or indicates to network A that the UE is in MUSI. Information related to M status.
  • the fifth embodiment will be described below with reference to FIGS. 8 to 10 .
  • FIG. 8 is an exemplary flow chart for illustrating a method of configuring a secondary serving cell performed by user equipment according to the fifth embodiment of this specification.
  • the secondary serving cell indicated by the secondary serving cell activation indication may use inter-frequency carrier aggregation to transmit data with other activated secondary serving cells or special serving cells in the first network where the user equipment is located.
  • the secondary serving cell activation indicated by the secondary serving cell activation indication is not performed, and an indication message indicating that the user equipment is in the MUSIM state is sent to the first network.
  • the secondary serving cell activation indication may be included in the RRC reconfiguration message, and the RRC reconfiguration message may include additional configuration information for adding the secondary serving cell. At this time, you can refer to the process in Figure 9 to add a secondary serving cell.
  • the corresponding secondary serving cell is added based on the added configuration information.
  • the added secondary serving cell is placed in an inactive state.
  • the added secondary serving cell is made active.
  • the RRC reconfiguration message may also include modified configuration information used to modify the secondary serving cell.
  • the secondary serving cell may be modified with reference to the process of FIG. 10 .
  • the corresponding secondary serving cell is modified based on the modified configuration information.
  • the modified secondary serving cell is made inactive.
  • the modified secondary serving cell is made active.
  • the secondary serving cell activation may be performed regardless of whether the user equipment is in MUSIM mode.
  • the operation of determining whether the user equipment is in the MUSIM state is performed.
  • the user equipment is configured by the first network to allow communication with the first network using only part of the hardware capabilities of the user equipment, or where the first network is not configured to allow communication with the first network using only part of the hardware capabilities of the user equipment
  • the operation of determining whether the user equipment is in the MUSIM state is performed.
  • the user equipment is configured by the first network to allow communication with the first network using only part of the hardware capabilities of the user equipment, or where the first network is not configured to allow communication with the first network using only part of the hardware capabilities of the user equipment
  • activation of the secondary serving cell corresponding to the secondary serving cell activation indication is performed.
  • the UE When a UE with at least dual reception and dual transmission capabilities is in the RRC connected state of both the first network (denoted as network A) and the second network (denoted as network B), the UE receives an instruction to activate the SCell from network A, but is in Related issues involved in the MUSIM state to prevent the UE in the MUSIM state from activating SCell and to make the SCell state consistent between the UE and the network.
  • the UE working under carrier aggregation receives the instruction to activate the SCell from the network. If the UE is not in the MUSIM state, the UE configures the lower layer to think that the SCell is in the active state or activates the SCell; if the UE is in the MUSIM state, the UE sends the instruction information to the network. Information indicating that the UE is in the MUSIM state or the SCell is not activated (the indication information may include specific cell identification information), in this case, the UE does not activate the SCell. It should be noted that the scenario considered here is that the network indicates that the activated SCell and the currently activated SCell or PSCell in the UE adopt inter-frequency carrier aggregation.
  • the UE capabilities or resources of the UE currently in the MUSIM state cannot support the activation of this /These SCells or even if these SCells are activated, data cannot be received or sent from these SCells due to limited UE capabilities.
  • the indication to activate SCell may be the sCellState field contained in the RRC reconfiguration message, or it may be SCell activation/deactivation media access control MAC control element CE or enhanced SCell activation/deactivation MAC CE.
  • the UE receives the RRC reconfiguration message from the base station, which contains CellGroupConfig field (the field may be included in the masterCellGroup field), based on the received CellGroupConfig field, the UE performs the following operations:
  • SCell is added or modified.
  • the SCell addition or modification includes the following operations:
  • the UE indicates in the response message that the UE is in the MUSIM state or that the SCell is not activated (optional, this operation is only performed when the SCell is configured in the inactive state but the UE is in the MUSIM state).
  • the response message may be an RRC reconfiguration completion message RRCReconfigurationComplete.
  • the UE if the UE receives an RRC message from the network to configure and activate an SCell with a different frequency than the PSCell, the UE does not configure the SCell and sends indication information to the network that the UE is in the MUSIM state or the SCell is configured. Indication information, optional, containing the unconfigured SCell identifier.
  • the UE receives the RRC from the network The message configures (or activates) an SCell with the same frequency as the PSCell, and configures (or activates) the SCell in the UE.
  • the UE receives SCell activation/deactivation MAC C from the base station E or enhanced SCell activation/deactivation MAC CE scenario
  • the MAC entity For each configured SCell, the MAC entity performs the following operations:
  • SCell activation/deactivation MAC CE or enhanced SCell activation/deactivation MAC CE to activate the SCell, perform the following operations:
  • a MAC CE can be defined or an existing MAC CE can be reused, and the MAC CE carries information indicating that the UE is in the MUSIM state or related information indicating that the SCell has not been activated.
  • deactivation and inactivation have the same meaning and can be used interchangeably.
  • FIG. 11 is an exemplary flowchart for illustrating a method performed by a user equipment provided in the sixth embodiment of this specification.
  • S1102 it is determined whether there is uplink data that needs to be transmitted through SCGDRB in the first network.
  • the predetermined condition is met. That is, in S1104, it is determined that the SCG DRB corresponding to Whether the secondary serving cell group is in an inactive state. If the secondary serving cell group is in the inactive state, in S1106, it is determined whether the user equipment is in the MUSIM state.
  • the uplink data indication information of the SCG DRB is sent to the first network.
  • the uplink data indication information is used to indicate to the first network that uplink data for the SCG DRB has arrived.
  • the "arrival" here is relative to the transceiver module of the user equipment (for example, the user equipment determines that there is uplink data for the SCG DRB to be sent for the RRC entity of this RRC connection).
  • the first network may configure corresponding MCG resources for the first network for transmitting uplink data.
  • the uplink data is transmitted through the active SCG.
  • a signal is sent to the first network indicating that there is a need to pass An indication message for uplink data transmitted by SCG DRB.
  • This indication message is used to indicate that the UE has uplink data for the deactivated SCG.
  • the first network may configure an activated SCG for the user equipment for transmitting the above uplink data.
  • the uplink data indication information may include, for example, the identification information of the SCG DRB for the uplink data or the logical channel identification of the SCG RLC entity.
  • the predetermined conditions may also include any of the following: the user equipment has not sent uplink data indication information to the network for uplink data; the user equipment enters the current After the MUSIM state, no uplink data indication information has been sent to the network for the uplink data; the prohibition timer used to prohibit sending the uplink data indication information is not in the running state, and the prohibition timer is started when the uplink data indication information is sent. .
  • the prohibition timer is used to limit the frequency of sending uplink data indication information to avoid sending information too frequently.
  • the first network may instruct the user equipment to exit the MUSIM state through a MUSIM state release indication.
  • the user equipment receives the MUSIM state release instruction, it can choose whether to exit the MUSIM state according to its own preferences. Description will be made below with reference to FIG. 12 .
  • Figure 12 is used to illustrate the sixth embodiment in this specification provided by the user equipment.
  • a MUSIM state release indication is received from the first network.
  • the user equipment determines that it cannot exit the MUSIM state (No in S1204), then in S1210, it sends a request message indicating that the MUSIM state is maintained to the first network.
  • the request message may include information indicating that the user equipment is still in the MUSIM state. For example, when the user equipment believes that there is more urgent data that needs to be transmitted in a second network that is different from the first network or that the data transmitted in the second network has a higher priority, it can be determined that the current preference is not to exit the MUSIM state. .
  • the user equipment is configured by the first network to allow only part of the hardware capabilities of the user equipment to be used to communicate with the first network.
  • the predetermined condition includes that the user equipment is in the MUSIM state.
  • the following describes the scenario when the uplink data of the SCG DRB arrives but the UE is in the MUSIM state.
  • the UE in the MUSIM state is in the dual connection state in network A and the SCG is deactivated.
  • the UE has uplink data arriving for the data radio bearer DRB that does not have the MCG RLC bearer, And the UE has not yet sent an indication to the network for the arrival of the uplink data of the DRB (the condition can be replaced by: the UE has not entered the MUSIM state for the last time or the UE has not yet sent an indication to the network for the arrival of the uplink data of the DRB after the UE last changed the MUSIM state.
  • the network has sent an indication, or the UE has not sent an indication to the network for the arrival of the uplink data of the DRB before this).
  • the UE indicates to the network A that the uplink data of the DRB has arrived.
  • the indication may include the DRB identifier of the DRB or the corresponding logical channel identifier.
  • the prohibition timer is started.
  • the condition can be replaced by: in the UE's latest Entering the MUSIM state or the UE has not sent an indication to the network for the uplink data arrival of the SCG RLC entity since the last change of the MUSIM state, or the UE has not sent an indication to the network for the uplink data arrival of the SCG RLC entity before this.
  • the prohibition timer is not running (this condition is optional), then start transmitting the UE assistance information message to indicate that the UE has any RLC-BearerConfig for which the DRB identity (DRB-Identity) is not included in the CellGroupConfig associated with the MCG.
  • the DRB's uplink data is to be sent and, optionally, the prohibition timer is started.
  • the UE auxiliary information message contains the identification of the SCG DRB to which the uplink data is to be sent or The logical channel identifier of the SCG RLC entity that has uplink data to be sent; otherwise (the UE is not in the MUSIM state), the UE auxiliary information message contains a link to indicate that the UE has uplink data to be sent for the SCG RLC entity or the deactivated SCG. uplinkData field.
  • the UE When the SCG is deactivated and the UE is not in the MUSIM state, the UE only needs to include the uplinkData field in the UE assistance information message indicating that the UE has uplink data to send for the SCG RLC entity. After receiving this message, the network can activate the SCG . However, when the SCG is deactivated and the UE is in the MUSIM state, the UE needs to include in the UE assistance information message the identifier of the SCG DRB or the identifier of the corresponding logical channel indicating that the UE has uplink data for the SCG RLC entity to be sent. The network After receiving this message, the SCG DRB can be reconfigured as an MCG DRB or a detached DRB (that is, an MCG RLC bearer is added to the SCG DRB), thereby reducing the transmission delay of the SCG DRB.
  • the data radio bearer DRB without MCG RLC bearer refers to the SCG DRB or SCG RLC entity, that is, the associated RLC bearer is only a DRB in the SCG, that is, the DRB that is only configured with the SCG RLC bearer, that is, the DRB- Identity is not included in the DRB in any RLC-BearerConfig in the associated MCG's CellGroupConfig.
  • RLC bearer and RLC entity are used interchangeably.
  • network A When the UE is in the MUSIM state, if network A needs to perform high-priority services or emergency services in the SCG, for example, downlink data for the SCG DRB arrives in network A, network A needs to indicate relevant information to the UE so that the UE can make decisions based on the indication information. Whether to release the RRC connection with another network or release the UE capability restrictions in network A.
  • the UE receives an RRC message from the network, such as an RRC reconfiguration message, which contains a field to instruct the UE to exit the MUSIM state or instruct the UE to release UE capability restrictions in network A.
  • the UE may indicate in the response message that the UE exits or maintains the MUSIM state or the UE releases or maintains (or requests) the capability restrictions in network A.
  • the response message may be an RRC reconfiguration complete message or a UE assistance information message.
  • FIG. 13 is an exemplary flowchart for illustrating a method for restoring an RRC connection performed by a user equipment provided in the seventh embodiment of this specification.
  • an RRC recovery request message requesting to recover the RRC connection with the first network is sent to the first network.
  • indication information indicating that the user equipment prefers not to activate the secondary serving cell group is sent to the first network.
  • the indication information also includes information indicating any of the following: the new secondary serving cell group indicated by the RRC recovery message is not configured; the new secondary serving cell group indicated by the RRC recovery message is configured but not activated; the RRC recovery message The indicated existing secondary serving cell group has not been restored; the existing secondary serving cell indicated by the RRC recovery message has been restored but has not been activated.
  • RRC recovery message does not indicate activation of the secondary serving cell group, or the RRC recovery message indicates activation of the secondary serving cell group but the user equipment does not prefer not to activate the secondary serving cell group, then in S1312, recovery is performed according to the received RRC recovery message. RRC connection to the first network.
  • any of the following may be performed: when the RRC recovery message indicates that the new secondary serving cell group is configured, configure the new secondary serving cell according to the RRC recovery message but Do not activate the new secondary serving cell group; when the RRC recovery message indicates to configure the new secondary serving cell group, do not perform the new secondary serving cell group configuration indicated by the RRC recovery message; when the RRC recovery message indicates to restore the existing secondary serving cell group, Do not perform recovery of the existing secondary serving cell group indicated by the RRC recovery message; when the RRC recovery message indicates recovery of the existing secondary serving cell group, recover the existing secondary serving cell group indicated by the RRC recovery message, but do not activate the existing secondary serving cell group.
  • Auxiliary service community group when the RRC recovery message indicates that the new secondary serving cell group is configured, configure the new secondary serving cell according to the RRC recovery message but Do not activate the new secondary serving cell group.
  • inter-frequency carrier aggregation is used to transmit data between the secondary serving cell indicated by the RRC recovery message and other active secondary serving cells or primary serving cells PCell where the user equipment is located in the first network.
  • the RRC recovery message indicates that the activated secondary serving cell and the primary serving cell operate in different frequency bands
  • a message indicating that the user equipment prefers not to activate the secondary service is sent to the first network. Instructions for the neighborhood.
  • the user equipment if the first network configures whether to allow the use of part of the hardware capabilities of the user equipment to communicate with the first network, then the user equipment is configured by the first network to allow the use of only part of the hardware capabilities of the user equipment to communicate with the first network.
  • the RRC recovery message indicates that the secondary serving cell group is activated
  • an indication indicating that the user equipment prefers not to activate the secondary serving cell group may be sent to the first network. information.
  • FIG. 14 is an exemplary flowchart for illustrating a method for restoring an RRC connection performed by a user equipment provided in the eighth embodiment of this specification.
  • an RRC recovery request message requesting to restore the RRC connection in the first network is sent to the first network.
  • the RRC recovery request message includes the description indicating that the user equipment prefers not to activate the secondary serving cell group. Instruction information of the secondary serving cell group.
  • the user equipment does not prefer not to activate the secondary serving cell group, then in S1406, send an RRC recovery request message that does not include the above indication information.
  • the situation in which the user equipment prefers not to activate the secondary serving cell group may include the user equipment being in the MUSIM state.
  • the user equipment if the first network configures whether to allow the use of part of the hardware capabilities of the user equipment to communicate with the first network, then the user equipment is configured by the first network to allow the use of only part of the hardware capabilities of the user equipment to communicate with the first network.
  • the user equipment may send an RRC recovery request message including indication information indicating that the user equipment prefers not to activate the secondary serving cell group to the first network.
  • the user equipment will restore the secondary serving cell group when the RRC is restored.
  • the request message includes indication information indicating that the user equipment does not prefer to activate the secondary serving cell group. This is to avoid the first network being configured to activate the secondary serving cell group when providing the user equipment with the configuration for restoring the RRC connection.
  • the UE is in the RRC inactive state in network A (that is, the RRC connection is suspended), and is in the RRC connected state in network B.
  • the UE sends an RRC recovery request RRCResumeRuest message to Network A, requesting to restore the RRC connection in Network A.
  • network A may send an RRC recovery message to the UE to recover the suspended RRC connection.
  • RRC recovery message it may be indicated whether to activate the SCG. If the RRC recovery message indicates that SCG is activated, since the UE is in the MUSIM state, if the UE believes that network B has a higher priority, Then the RRC connection with network B will not be released, causing the UE to be unable to communicate with the SCG in network A.
  • Network A considers that the SCG has been activated and performs data transmission on the SCG. At this time, the UE does not have the ability to receive the data transmitted on the SCG, which will result in a waste of resources of Network A.
  • the RRC recovery request message contains an indication information to indicate that the UE is in the MUSIM state or the UE prefers not to activate the SCG. Activate the SCG or prefer the SCG to be inactive.
  • the UE sets the content of the RRC recovery request message as follows: if the UE is in the MUSIM state, the RRC recovery request message contains indication information indicating that the UE is in the MUSIM state or indicates whether to prefer activating the SCG. Specifically, a new field may be defined for indication information indicating that the UE is in the MUSIM state or prefers the SCG to be inactive or prefers the SCG to be in the inactive state. If the UE is in the MUSIM state or the UE prefers not to activate the SCG or prefers the SCG to be in an inactive state, the field is included in the RRC recovery request message; otherwise, the field is not included in the RRC recovery request message.
  • the UE only if the SCG is in the active state in the context saved by the UE or the SCG is in the active state before the UE enters the RRC inactive state, the UE includes in the RRC recovery request message that the UE is in the MUSIM state or indicates a preference to deactivate the SCG or to prefer the SCG. Inactive indication.
  • the UE submits the RRC recovery request message for transmission to the lower layer.
  • the indication information is used to indicate that the UE is in the MUSIM state or the UE prefers not to activate the SCell or the UE prefers not to activate the SCell with a different frequency than the PCell.
  • the indication information is included in the RRC recovery request message only when there is an SCell with a different frequency than the PCell in the configured SCell.
  • indication information is included in the RRC recovery request message only when the UE prefers to activate the SCG or the preferred SCG is in the active state, and is used to indicate that the UE prefers to activate the SCG or the preferred SCG is in the active state.
  • the UE if the UE receives the RRC recovery RRCResume message from the base station, which does not contain the scg-State instruction configuring the SCG to be in the inactive state, and if the UE is in the MUSIM state, the UE does not activate the SCG.
  • the UE sends indication information to the network to indicate that the UE is in the MUSIM state or the SCG is not activated or the SCG is not configured. Said refers to The indication information can be included in the RRC recovery completion message.
  • the UE may configure or restore the SCG according to the received RRC recovery message, or may not configure or restore the SCG. Specifically, if the RRC recovery message contains restoreSCG and the UE is not in the MUSIM state, the UE restores mrdc-SecondaryCellGroup from the UE inactive AS context (context). In other words, if the RRC recovery message contains restoreSCG and the UE is in the MUSIM state, or the RRC recovery message does not contain restoreSCG, the MR-DC related configuration is released from the UE inactive AS context.
  • the restoreSCG field is used to instruct the UE to restore (restore) the SCG configuration from the UE inactive AS context.
  • the UE sends an RRC recovery request message to Network A and receives an RRC recovery message from the network. If the UE has MUSIM capability or the UE is configured with multi-SIM (the UE has reported its multi-SIM capability to the network), the SCG configured in the RRC recovery message is in an inactive state, that is, the RRC recovery message contains scg-State. field. In other words, for a UE configured with MUSIM, only an inactive SCG or no SCG can be configured when the RRC connection is restored.
  • the MR-DC related configuration is released from the UE inactive AS context.
  • the UE if the UE receives the RRC recovery message from the base station, which contains the indication sCellState that the SCell configured with a different frequency than the PCell is in the active state, and if the UE is in the MUSIM state, the UE does not activate the SCell or configures but does not Activate the SCell or do not configure the SCell.
  • the UE sends indication information to the network to indicate that the UE is in the MUSIM state or the SCell is not activated or the SCell is not configured or the SCell is configured but not activated.
  • the indication information may be an identifier of an unactivated or unconfigured SCell, and the indication information may be included in an RRC recovery completion message.
  • releasing MR-DC related configurations from the UE inactive AS context includes: releasing SRB3 (for the situation where SRB3 has been established), releasing SCG-associated measConfig, releasing SCG configuration, etc.
  • FIG 15 is a block diagram of user equipment provided in this specification.
  • the user set The equipment UE40 includes a processor 151 and a memory 152.
  • the processor 151 may include, for example, a microprocessor, a microcontroller, an embedded processor, or the like.
  • the memory 42 may include, for example, volatile memory (such as random access memory RAM), hard disk drive (HDD), non-volatile memory (such as flash memory), or other memory.
  • Memory 152 stores program instructions. When this instruction is executed by the processor 151, it can execute the above method executed by the user equipment as described in detail in the present invention.
  • the program running on the device according to the present invention may be a program that causes the 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 (such as random access memory RAM), hard disk drive (HDD), non-volatile memory (such as flash memory), or other memory systems.
  • Computer-executable instructions or programs for implementing the functions of various embodiments of the present disclosure may be recorded on a computer-readable storage medium. Corresponding functions can be realized by causing the computer system to read programs recorded on the recording medium and execute these programs.
  • the so-called “computer system” here may be a computer system embedded in the device, which may include an operating system or hardware (such as peripheral devices).
  • a "computer-readable storage medium” may be a semiconductor recording medium, an optical recording medium, a magnetic recording medium, a recording medium for short-term dynamic storage of a program, or any other recording medium readable by a computer.
  • circuits eg, single-chip or multi-chip integrated circuits.
  • Circuitry designed to perform the functions described in this specification may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination of the above.
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • FPGA field-programmable gate array
  • a general-purpose processor can be a microprocessor or any existing processor, controller, microcontroller, or state machine.
  • the above circuit may be a digital circuit or an analog circuit. Due to advances in semiconductor technology If new integrated circuit technologies emerge to replace existing integrated circuits, one or more embodiments of the present disclosure may also be implemented using these new integrated circuit technologies.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

La présente invention concerne un procédé de configuration de cellule de desserte secondaire exécuté par un équipement utilisateur, comprenant les étapes suivantes : lors de la réception d'une indication d'activation de cellule de desserte secondaire provenant d'un premier réseau, détermination quant au fait de savoir si l'équipement utilisateur est dans un état MUSIM ; et lorsque l'équipement utilisateur est dans un état MUSIM, non-exécution d'une activation de cellule de desserte secondaire indiquée par l'indication d'activation de cellule de desserte secondaire, et envoi au premier réseau d'un message d'indication indiquant que l'équipement utilisateur est dans un état MUSIM.
PCT/CN2023/105704 2022-07-07 2023-07-04 Procédé de configuration de cellule de desserte secondaire exécuté par un équipement utilisateur, et équipement utilisateur WO2024008072A1 (fr)

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Citations (4)

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WO2021147958A1 (fr) * 2020-01-21 2021-07-29 FG Innovation Company Limited Équipement d'utilisateur et procédé de fonctionnement multi-sim
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WO2022086227A1 (fr) * 2020-10-21 2022-04-28 삼성전자 주식회사 Procédé et dispositif de prise en charge d'un ue prenant en charge de multiples sim dans un système de communication sans fil
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