WO2023227090A1 - Procédé et appareil de mise à jour de cellule pour groupe de cellules secondaires, et support de stockage - Google Patents

Procédé et appareil de mise à jour de cellule pour groupe de cellules secondaires, et support de stockage Download PDF

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Publication number
WO2023227090A1
WO2023227090A1 PCT/CN2023/096439 CN2023096439W WO2023227090A1 WO 2023227090 A1 WO2023227090 A1 WO 2023227090A1 CN 2023096439 W CN2023096439 W CN 2023096439W WO 2023227090 A1 WO2023227090 A1 WO 2023227090A1
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WIPO (PCT)
Prior art keywords
update
cell
primary
layer
secondary cell
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PCT/CN2023/096439
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English (en)
Chinese (zh)
Inventor
邓云
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展讯通信（上海）有限公司
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Publication of WO2023227090A1 publication Critical patent/WO2023227090A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes

Definitions

  • the present application relates to the field of communication technology, and in particular, to a cell update method, device and storage medium for a secondary cell group.
  • the network side can enable the terminal device to access the target cell from the source cell through handover.
  • the terminal device receives the handover command sent by the network side, it accesses the target cell according to the target cell information contained in the handover command.
  • the above handover is called legacy handover or layer 3 handover.
  • a conditional handover mechanism is introduced in wireless communications: The biggest difference between this handover process and the original handover process is that the handover command contains a handover condition (also called handover execution condition) judged by the terminal device. ), such as determining whether the signal quality of the candidate target cell is higher than the signal quality of the serving cell by a predetermined offset. After receiving the handover command, the terminal device determines whether the handover execution conditions are met.
  • the terminal device uses the configuration parameters of the candidate target cell contained in the handover command to access the target cell, obtains synchronization with the target cell, initiates a random access process in the target cell, and after sending the handover completion command, the terminal device implements Switch to the target cell; if the handover conditions are not met, the terminal device continues to maintain the Radio Resource Control (RRC) connection with the source base station.
  • RRC Radio Resource Control
  • the source base station can configure multiple candidate target cells and corresponding handover execution conditions.
  • the terminal equipment is configured with a Master Cell Group (MCG) and a Secondary Cell Group (SCG), where the secondary cell group side at least contains the primary and secondary cells (PSCell).
  • MCG Master Cell Group
  • SCG Secondary Cell Group
  • SCell secondary cell
  • the secondary cell group side can also configure a conditional switching mechanism, which is called conditional update, that is, conditional PSCell Change (CPC).
  • conditional update that is, conditional PSCell Change (CPC).
  • CPC conditional PSCell Change
  • Layer 1 or Layer 2 update L1/L2 based inter-cell mobility
  • Layer 1 which is the physical layer, or Layer 2, such as the Media Access Control (Medium Access Control, MAC) layer.
  • MAC Media Access Control
  • the network may also configure primary and secondary cell condition updates for the terminal equipment, such as the primary and secondary cell conditions of the terminal equipment.
  • the base station configures conditional updates for the end device. In this case, how the terminal equipment performs cell update is an urgent technical issue that needs to be solved.
  • This application provides a cell update method and device for a secondary cell group, and provides an implementation solution for flexibly performing cell updates when there are condition updates of primary and secondary cells and layer 1 or layer 2 updates.
  • a cell update method for a secondary cell group includes: after the terminal device is configured with a primary and secondary cell condition update, determining whether each candidate primary and secondary cell is The update execution condition is met; in response to the existence of a candidate primary and secondary cell that satisfies the update execution condition, the terminal device has not yet accessed the candidate primary and secondary cell, and has received a layer 1 or layer 2 update command for the target primary and secondary cell, An update to the candidate primary and secondary cell or an update to the target primary and secondary cell is performed.
  • performing an update to the candidate primary and secondary cells includes: receiving update indication information, where the update indication information is used to indicate that the update command is preferentially executed according to the layer 1 or layer 2 update command.
  • performing a cell update to the candidate primary and secondary cell or a cell update to the target primary and secondary cell includes: performing a cell update to the target primary and secondary cell.
  • performing a cell update to the candidate primary and secondary cell or a cell update to the target primary and secondary cell includes: when the configuration of the condition update corresponding to the candidate primary and secondary cell comes from the primary base station, performing a cell update to the target primary and secondary cell. Cell update of the candidate primary and secondary cells; otherwise, cell update to the target primary and secondary cells is performed.
  • performing cell update to the candidate primary and secondary cells or cell update to the target primary and secondary cells includes: determining whether the target primary and secondary cells are consistent with the candidate primary and secondary cells; if the If the target primary and secondary cells are consistent with the candidate primary and secondary cells, the layer 1 or layer 2 update command is executed.
  • the cell update method also includes: if a layer 1 or layer 2 update command for the target primary and secondary cells and a primary and secondary cell update command from the primary base station or an update command of the primary cell are simultaneously received, executing the primary and secondary cells. Cell update command or primary cell update command.
  • this application also provides a cell update method for a secondary cell group, which is used in a secondary base station.
  • the cell update method includes: if the terminal device supports simultaneous configuration of layer 1 or layer 2 update and conditional update, then Configure the primary and secondary cell condition update for the terminal device; send a layer 1 or layer 2 update command for the target primary and secondary cell, the layer 1 or layer 2 update command is when there is a candidate primary and secondary cell that satisfies the update execution condition, and the The layer 1 or layer 2 update command is sent when the terminal device has not yet accessed the candidate primary and secondary cells.
  • the layer 1 or layer 2 update command is used for the terminal device to perform updates to the candidate primary and secondary cells or to the target primary and secondary cells. renew.
  • the cell update method also includes: if the terminal equipment does not support simultaneous configuration of layer 1 or layer 2 update and conditional update, sending to the main base station that the terminal equipment has been configured for the layer 1 or layer 2 update. Parameters or sending indication information, the indication information is used to indicate not to configure the primary and secondary cell condition update.
  • the cell update method further includes: after the update is completed, sending an update configuration message to the master base station, where the update configuration message is used to indicate that parameters for the layer 1 or layer 2 update are not configured.
  • a cell update device in a third aspect, includes: a judgment module configured to judge whether each candidate primary and secondary cell satisfies the update execution condition after the terminal device is configured with a condition update of the primary and secondary cells; first An update module configured to respond to the existence of a candidate primary and secondary cell that satisfies the update execution condition, the terminal device has not yet accessed the candidate primary and secondary cell, and has received a layer 1 or layer 2 update command for the target primary and secondary cell, An update to the candidate primary and secondary cell or an update to the target primary and secondary cell is performed.
  • a cell update device which device includes: a configuration module for configuring primary and secondary cell condition updates for terminal equipment; and a second update module for sending layer 1 or layer 1 information for the target primary and secondary cells.
  • 2 update command the layer 1 or layer 2 update command is sent when there is a candidate primary and secondary cell that satisfies the update execution condition, and the terminal device has not yet accessed the candidate primary and secondary cell.
  • the layer 1 or layer 2 update command is The layer 2 update command is used for the terminal device to perform an update to the candidate primary and secondary cells or an update to the target primary and secondary cells.
  • a fifth aspect provides a computer-readable storage medium on which a computer program is stored, and the computer program is run by a processor to execute any method provided in the first aspect or the second aspect.
  • a sixth aspect provides a communication device, including a memory and a processor.
  • the memory stores a computer program that can be run on the processor.
  • the processor runs the computer program to execute any method provided in the first aspect.
  • a seventh aspect provides a communication device, including a memory and a processor.
  • the memory stores a computer program that can be run on the processor. It is characterized in that the processor runs the computer program to execute any of the methods provided in the second aspect. method.
  • a computer program product is provided, a computer program is stored thereon, and the computer program is run by a processor to execute any one of the methods provided in the first aspect or the second aspect. method.
  • a communication system including the above terminal device and the above network device.
  • the terminal device after the terminal device is configured with the condition update of the primary and secondary cells, it can determine whether each candidate primary and secondary cell meets the update execution conditions. In response to the existence of a candidate primary and secondary cell that satisfies the update execution condition, the terminal device has not yet accessed the candidate primary and secondary cell, and has received a layer 1 or layer 2 update command for the target primary and secondary cell, executes updating to the candidate primary and secondary cell. Update of primary and secondary cells or update to the target primary and secondary cells.
  • the terminal equipment supports two cell update methods, that is, it supports both primary and secondary cell condition updates and layer 1 or layer 2 updates, and both cell update methods can be executed, since different cell update methods can meet different requirements. needs, so the terminal device can select one of the cell update methods to perform cell update according to its own needs or network instructions, achieving flexibility in cell update.
  • a layer 1 or layer 2 update command is executed.
  • the layer 1 or layer 2 update method is used to update the cells. In this way, the user plane delay in the cell update process can be significantly reduced, thereby satisfying the terminal requirements.
  • the device side has high latency requirements and improves user experience.
  • Figure 1 is a flow chart of a cell update method for a secondary cell group provided by an embodiment of the present application
  • Figure 2 is an interactive flow chart of a cell update method for a secondary cell group provided by an embodiment of the present application
  • Figure 3 is an interactive flow chart of another cell update method for a secondary cell group provided by an embodiment of the present application.
  • Figure 4 is an interactive flow chart of yet another cell update method for a secondary cell group provided by an embodiment of the present application
  • Figure 5 is a schematic structural diagram of a cell update device for a secondary cell group provided by an embodiment of the present application.
  • Figure 6 is a schematic structural diagram of another cell update device for a secondary cell group provided by an embodiment of the present application.
  • Figure 7 is a schematic diagram of the hardware structure of a cell update device for a secondary cell group provided by an embodiment of the present application.
  • Communication systems applicable to the embodiments of this application include but are not limited to long term evolution (LTE) systems, fifth-generation (5th-generation, 5G) systems, NR systems, and future evolution systems or multiple communication convergence systems.
  • LTE long term evolution
  • 5th-generation 5th-generation
  • NR NR
  • future evolution systems or multiple communication convergence systems e.g., the 5G system may be a non-standalone (NSA) 5G system or a standalone (SA) 5G system.
  • SA standalone
  • the technical solution of this application is also applicable to different network architectures, including but not limited to relay network architecture, dual-link architecture, Vehicle-to-Everything (vehicle to any object communication) architecture and other architectures.
  • This application mainly relates to communication between terminal equipment and network equipment. in:
  • the network device in the embodiment of the present application may also be called an access network device.
  • it may be a base station (BS) (also called a base station device).
  • the network device is a device deployed on a wireless access network (Radio Access Network (RAN) is a device used to provide wireless communication functions.
  • Radio Access Network (RAN) is a device used to provide wireless communication functions.
  • equipment that provides base station functions in the second generation (2nd-generation, 2G) network includes base transceiver stations (BTS), and equipment that provides base station functions in the third generation (3rd-generation, 3G) network includes NodeB (NodeB), the equipment that provides base station functions in the fourth generation (4th-generation, 4G) network includes evolved NodeB (eNB), in wireless local area networks (WLAN),
  • the equipment that provides base station functions is an access point (AP).
  • the equipment that provides base station functions in NR is the next generation base station node.
  • node base station (gNB) and the evolving node B (ng-eNB), in which NR technology is used to communicate between gNB and terminal equipment, and evolved general terrestrial radio access (Evolved) is used between ng-eNB and terminal equipment.
  • E-UTRA Universal Terrestrial Radio Access
  • the network equipment in the embodiment of the present application also includes equipment that provides base station functions in new communication systems in the future.
  • Terminal equipment in the embodiments of this application may refer to various forms of access terminals, user units, user stations, mobile stations, mobile stations (MS), remote stations, remote terminals, mobile devices, users Terminal, wireless communication equipment, user agent or user device.
  • the terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), or a device with wireless communications Functional handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in future 5G networks or future evolved Public Land Mobile Communications Networks (Public Land Mobile Network, PLMN) Terminal equipment, etc., the embodiments of this application are not limited to this.
  • Terminal equipment can also be called user equipment (User Equipment), terminal, etc.
  • the network may also configure the primary and secondary cell condition update for the terminal device.
  • the main base station of the terminal device configures conditional updates for the terminal device.
  • how the terminal equipment performs cell update is an urgent technical issue that needs to be solved.
  • the terminal device after the terminal device is configured with the condition update of the primary and secondary cells, it can determine whether each candidate primary and secondary cell meets the update execution conditions. In response to the existence of a candidate primary and secondary cell that satisfies the update execution condition, the terminal device has not yet accessed the candidate primary and secondary cell, and has received a layer 1 or layer 2 update command for the target primary and secondary cell, executes updating to the candidate primary and secondary cell. Update of primary and secondary cells or update to the target primary and secondary cells.
  • the terminal equipment supports two cell update methods, that is, it supports both primary and secondary cell condition updates and layer 1 or When layer 2 update is performed and both cell update methods can be executed, since different cell update methods can meet different needs, the terminal device can select one of the cell update methods for cell update according to its own needs or network instructions. The flexibility of cell update is achieved.
  • Step 101 After the terminal device configures the condition update of the primary and secondary cells, the terminal device determines whether each candidate primary and secondary cell meets the update execution conditions.
  • the number of candidate primary and secondary cells may be one or more.
  • Step 102 In response to the existence of a candidate primary and secondary cell that satisfies the update execution condition, the terminal device has not yet accessed the candidate primary and secondary cell, and has received a layer 1 or layer 2 update command for the target primary and secondary cell, execute the update command. Update of the candidate primary and secondary cells or update to the target primary and secondary cells.
  • the fact that the terminal device has not yet accessed the candidate primary and secondary cells may also mean that the terminal device has not yet sent signaling containing the candidate primary and secondary cell information that satisfies the update execution conditions to the primary base station.
  • the cell update method can be implemented in the form of a software program, and the software program runs in a processor integrated within a chip or chip module. This method can also be implemented using software combined with hardware, which is not limited by this application.
  • the layer 1 or layer 2 update may also be called layer 1 or layer 2 mobility (L1/L2 inter-cell mobility), or any other implementable name, which is not limited by this application.
  • the cell update method in the embodiment of the present invention is used in the secondary cell group. That is to say, the cell update in the embodiment of the present invention refers to the update of the primary and secondary cells.
  • the primary and secondary cell conditions of the terminal equipment may be updated by the primary base station. configured, or configured by the secondary base station.
  • the terminal device can receive the primary and secondary cell condition update configuration from the primary base station, can also receive the primary and secondary cell condition update configuration from the secondary base station, and can also receive the primary and secondary cell condition update configuration from the primary base station and the secondary base station at the same time.
  • Different primary and secondary cell condition update configurations can be associated with different candidate primary and secondary cells, or with the same candidate primary and secondary cells.
  • the terminal equipment when the terminal equipment supports two cell update methods, that is, it supports both primary and secondary cell condition updates and layer 1 or layer 2 updates, and both cell update methods can be executed, due to different cell update methods It can meet different needs, so the terminal device can select one of the cell update methods to perform cell update according to its own needs or network instructions, achieving flexibility in cell update.
  • the terminal device accesses the primary cell PCell, establishes an RRC connection, and establishes a data radio bearer to start services.
  • the serving cell configures measurements for the terminal equipment so that the terminal equipment can measure neighboring cells and serving cells and report measurement reports.
  • the primary cell PCell can make handover decisions based on measurement reports and other factors such as cell load.
  • the primary cell PCell configures dual connectivity for the terminal equipment, that is, configures a secondary cell group.
  • the secondary cell group side contains at least one primary and secondary cell PSCell, and optionally one or more secondary cells SCell. Because the terminal equipment is mobile, the network needs to consider the update of the primary and secondary cells (PSCell Change).
  • the primary and secondary cell PSCell configures parameters for the layer 1 or layer 2 update process for the terminal device.
  • the primary and secondary cell PSCell selects a target primary and secondary cell Cell1.
  • the target primary and secondary cell Cell1 and the current primary and secondary cell PSCell can belong to the same secondary cell.
  • the base station may also belong to a different secondary base station from the current PSCell.
  • the terminal device needs to detect The layer 1 reference signal receiving power (RSRP) of the target primary and secondary cell Cell1, and the L1RSRP reported to the current primary and secondary cell PSCell.
  • the terminal device continues to maintain the connection with the current PSCell before receiving the layer 1 or layer 2 primary and secondary cell update command.
  • RSRP layer 1 reference signal receiving power
  • the following is a detailed description of two scenarios where the terminal device supports simultaneous configuration of layer 1 or layer 2 updates and primary and secondary cell condition updates, and does not support layer 1 or layer 2 updates and primary and secondary cell condition updates at the same time.
  • the terminal device supports simultaneous configuration of parameters for layer 1 or layer 2 update and primary and secondary cell condition update. That is, the terminal device is configured with parameters for the layer 1 or layer 2 update process, and is configured with parameters for candidate primary and secondary cell condition updates.
  • the parameters for candidate primary and secondary cell condition updates include wireless parameters configured for the terminal device by the candidate primary and secondary cells and Conditional update execution condition.
  • the serving network device sends the configuration information of the target primary and secondary cells to the terminal device.
  • the network device can further configure the terminal device. Main and auxiliary cell conditions updated. It should be noted that Cell1 cannot be called the target primary and secondary cell at this time.
  • Cell1 is a candidate target primary and secondary cell; after the terminal device receives the layer 1 Or the layer 2 primary and secondary cell update command needs to be updated to Cell1, Cell1 is the target primary and secondary cell of the terminal device.
  • the terminal device after receiving the configuration parameters for the layer 1 or layer 2 update process, the terminal device reports channel state information related to the target primary and secondary cell Cell1.
  • step 202 the terminal device evaluates whether each candidate primary and secondary cell meets the update execution condition.
  • the terminal device After receiving the condition update configuration of the primary and secondary cells, the terminal device begins to evaluate the candidate primary and secondary cells, and evaluates whether the candidate primary and secondary cells meet the update execution conditions of the corresponding primary and secondary cells.
  • the terminal device starts to execute the primary and secondary cell condition update process and begins to access the candidate primary and secondary cells that meet the conditions.
  • step 203 the service network device sends a layer 1 or layer 2 update command to the terminal device. make.
  • the terminal device finds that a candidate primary and secondary cell satisfies the update execution conditions. Before the terminal device has accessed the candidate primary and secondary cells or before the terminal device has reported the candidate primary and secondary cell information that meets the update execution conditions to the primary base station, the terminal device has also received the layer 1 or layer 2 update command sent by the primary and secondary cells.
  • the terminal device may perform step 204 or step 205.
  • step 204 the terminal device performs update to the candidate primary and secondary cells.
  • the terminal device performs the condition update of the primary and secondary cells.
  • the terminal device preferentially performs the condition update of the primary and secondary cells because the evaluation of the update conditions of the primary and secondary cells examines the candidate primary and secondary cells after layer 3 smoothing filtering within a period of time.
  • Signal quality is more reliable than only considering changes in layer 1 channel quality in layer 1 or layer 2 updates.
  • Another consideration is that after the secondary base station configures layer 1 or layer 2 update, it usually does not configure the primary and secondary cell condition update (SN initiated CPC) initiated by the secondary base station, but the primary base station may be the terminal device based on its own judgment.
  • MN initiated CPC Configure the primary and secondary cell condition update
  • the terminal device performing the primary and secondary cell condition update is equivalent to accepting the instructions sent by the primary base station. For terminal equipment, it prioritizes executing instructions from the main base station.
  • step 205 the terminal device performs update to the target primary and secondary cells.
  • the terminal device executes a layer 1 or layer 2 update command.
  • the network device can refer to more information in time when configuring the target primary and secondary cells, such as the load information between cells, etc., the performance of the target primary and secondary cells is better, so the terminal device can execute the layer 1 or layer 2 update command.
  • Executing layer 1 or layer 2 update commands can help reduce the service plane interruption delay of terminal equipment during movement. This is because executing layer 1 or layer 2 update commands sometimes does not require a random access process and the access efficiency is higher. . In high-latency business scenarios, terminal equipment executing layer 1 or layer 2 update commands to perform cell updates can better meet business needs.
  • the terminal device determines whether the target primary and secondary cells (ie, the primary and secondary cells indicated in the layer 1 or layer 2 update command) are consistent with the candidate primary and secondary cells. That is, it is determined whether the target primary and secondary cells and the candidate primary and secondary cells are the same cell.
  • the target primary and secondary cells ie, the primary and secondary cells indicated in the layer 1 or layer 2 update command
  • step 302 when the target primary and secondary cells are consistent with the candidate primary and secondary cells, the terminal device executes a layer 1 or layer 2 update command.
  • the terminal device executing the layer 1 or layer 2 update command helps to reduce the service plane interruption delay of the terminal device during movement.
  • the terminal device can independently decide which method to use to update the cell. For example, the terminal device can perform step 204 or step 205.
  • update indication information may be received from the network side, such as the primary base station or the secondary base station.
  • the update indication information is used to indicate priority execution according to the layer 1 or layer 2 update command.
  • the primary and secondary cells are updated or the cell update is performed on the candidate primary and secondary cells first; the terminal device performs the cell update according to the update instruction information. If the update instruction information is used to indicate that the primary and secondary cells are updated preferentially according to the layer 1 or layer 2 update command, then after the above step S203, step S205 is performed.
  • Scenario 2 The terminal device does not support simultaneous configuration of parameters for layer 1 or layer 2 update and primary and secondary cell condition update parameters.
  • the term "not supporting simultaneous configuration of parameters for layer 1 or layer 2 update and primary and secondary cell condition update parameters” may mean that the terminal device does not support simultaneous configuration of parameters for layer 1 or layer 2 update and primary and secondary cells.
  • Conditional update parameters it can also be that the secondary base station does not support configuring parameters for layer 1 or layer 2 update and primary and secondary cell conditional update parameters for terminal equipment at the same time. It can also be that both the secondary base station and the terminal equipment do not support configuring parameters for layer 1 at the same time. Or layer 2 update parameters and primary and secondary cell condition update parameters.
  • the secondary base station sends parameters or indication information that the terminal equipment has been configured for layer 1 or layer 2 update to the master base station.
  • the instruction information is used to indicate not to configure Main and auxiliary cell conditions updated.
  • the secondary base station or terminal equipment when the secondary base station or terminal equipment does not support simultaneous configuration of parameters for layer 1 or layer 2 update and primary and secondary cell condition update parameters, the secondary base station needs to indicate to the primary base station through the Xn/X2 interface that it has been configured for layer 1 or layer 2 update. Parameters updated by layer 1 or layer 2, or parameters indicating that the primary and secondary cells are not configured to be conditionally updated.
  • the terminal device after obtaining the relevant configuration of the (candidate) target primary and secondary cells, performs measurements on the target primary and secondary cells. That is, after the terminal device obtains the cell identifier of the (candidate) target primary and secondary cells and the configuration parameters of the reference signal, it measures the (candidate) target primary and secondary cells and reports the measured (candidate) values to the current primary and secondary cells. Information such as channel quality of the target primary and secondary cells.
  • step 402 the terminal device reports the channel state information of the target primary and secondary cells to the secondary base station.
  • the terminal equipment will also report the channel status information of the current primary and secondary cells (that is, the serving primary and secondary cells). After the current primary and secondary cells receive the channel status information reported by the terminal equipment, they will make a decision whether to execute Layer 1 or Layer 1. 2 updated.
  • step 403 is executed.
  • step 403 the secondary base station sends a layer 1 or layer 2 update command to the terminal device.
  • step 404 the terminal device performs update to the target primary and secondary cells.
  • the terminal device may need to initiate a random access procedure to access the target primary and secondary cells. If the terminal device has obtained the uplink advance of the target primary and secondary cells, it does not need to initiate a random access procedure. After the target primary and secondary cells confirm the access of the terminal equipment, they become the new primary and secondary cells of the terminal equipment.
  • step 405 the target network device sends an update configuration message to the master base station.
  • the update configuration message is used to indicate that the terminal device is not configured with parameters for layer 1 or layer 2 update.
  • the target network device is the network device to which the target primary and secondary cells belong.
  • target network By sending an update configuration message to the main base station, the network device can enable the main base station to initiate the main and secondary cell condition update process when appropriate.
  • Scenario 3 The terminal device simultaneously receives the layer 1 or layer 2 update command for the target primary and secondary cells and the primary and secondary cell update command or the update (handover) command of the primary cell from the primary base station.
  • the terminal device executes the primary and secondary cell update command or the primary cell update command.
  • the commands sent by the primary base station are superior to the layer 1 or layer 2 update commands sent by the secondary base station. Therefore, the terminal equipment preferentially executes the primary and secondary cell update commands or the update commands of the primary cell.
  • "Simultaneously” here does not mean complete synchronization in time, but means that after the terminal device receives the layer 1 or layer 2 update command for the target primary and secondary cells, but before accessing the target primary and secondary cells, if it receives the The terminal device executes the primary and secondary cell update command or the primary cell update (handover) command.
  • Figure 5 shows a cell update device 50 for a secondary cell group.
  • the cell update device 50 may include:
  • the determination module 501 is used to determine whether each candidate primary and secondary cell meets the update execution condition after the terminal device is configured with the primary and secondary cell condition update;
  • the first update module 502 is configured to respond to the existence of a candidate primary and secondary cell that satisfies the update execution condition, the terminal device has not yet accessed the candidate primary and secondary cell, and has received layer 1 or layer 2 for the target primary and secondary cell.
  • An update command is used to perform an update to the candidate primary and secondary cells or an update to the target primary and secondary cells.
  • the above-mentioned cell update device 50 may correspond to a chip with a cell update function in the terminal equipment, such as a system-on-a-chip (SOC), a baseband chip, etc.; or may correspond to a chip with a cell update function in the terminal equipment.
  • SOC system-on-a-chip
  • Figure 6 shows a cell update device 60.
  • the cell update device 60 may include:
  • the second update module 602 is configured to send a layer 1 or layer 2 update command for the target primary and secondary cell for the terminal device when there is a candidate primary and secondary cell that meets the update execution conditions and the terminal device has not yet accessed the candidate primary and secondary cell. An update to the candidate primary and secondary cells or an update to the target primary and secondary cell is performed.
  • the above-mentioned cell update device 60 may correspond to a chip with a cell update function in the network equipment, such as a SOC, a baseband chip, etc.; or correspond to a chip module with a cell update function in the network equipment; or correspond to a chip with a cell update function.
  • each device and product described in the above embodiments may be software modules/units or hardware modules/units, or they may be partly software modules/units and partly hardware modules/units.
  • each module/unit included therein can be implemented in the form of hardware such as circuits, or at least some of the modules/units can be implemented in the form of a software program.
  • the software program Running on the processor integrated inside the chip, the remaining (if any) modules/units can be implemented using circuits and other hardware methods; for various devices and products applied to or integrated into the chip module, each module/unit included in it can They are all implemented in the form of hardware such as circuits.
  • Different modules/units can be located in the same component of the chip module (such as chips, circuit modules, etc.) or in different components.
  • at least some modules/units can be implemented in the form of software programs.
  • the software program runs on the processor integrated inside the chip module, and the remaining (if any) modules/units can be implemented using circuits and other hardware methods; for various devices and products applied or integrated into terminal equipment, Each module/unit it contains can be implemented in the form of hardware such as circuits.
  • Different modules/units can be located in the same component (for example, chip, circuit module, etc.) or in different components in the terminal device, or at least some of the modules/units. It can be implemented in the form of a software program, which runs on the processor integrated inside the terminal device, and the remaining (if any) modules/units can be implemented in hardware such as circuits.
  • the storage medium is a computer-readable storage medium, and a computer program is stored thereon. When the computer program is run, the steps of the method shown in Figures 1 to 4 can be executed.
  • the storage medium may include read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
  • the storage medium may also include non-volatile memory (non-volatile) or non-transitory (non-transitory) memory, etc.
  • an embodiment of the present application also provides a schematic diagram of the hardware structure of a communication device.
  • the device includes a processor 701, a memory 702 and a transceiver 703.
  • the processor 701 can be a general central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more processors used to control the execution of the program of the present application. integrated circuit.
  • the processor 701 may also include multiple CPUs, and the processor 701 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor.
  • a processor here may refer to one or more devices, circuits, or processing cores for processing data (eg, computer program instructions).
  • Memory 702 may be ROM or other types of static storage devices that can store static information and instructions, RAM or other types of dynamic storage devices that can store information and instructions, or it may be electrically erasable programmable read-only memory.
  • read-only memory EEPROM
  • compactdisc read-only memory CD-ROM
  • optical disc storage including compressed optical discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.
  • magnetic disk storage media or other magnetic storage devices or any other medium that can be used to carry or store desired program code in the form of instructions or data structures that can be accessed by a computer.
  • the examples do not impose any restrictions on this.
  • the memory 702 may exist independently (in this case, the memory 702 may be located outside the device or within the device), or may be integrated with the processor 701 . Among them, the memory 702 may contain computer program code.
  • the processor 701 is used to execute the computer program code stored in the memory 702, thereby implementing the method provided by the embodiment of the present application.
  • the processor 701, the memory 702 and the transceiver 703 are connected by a bus.
  • Transceiver 703 is used to communicate with other devices or communication networks.
  • the transceiver 703 may include a transmitter and a receiver.
  • the device used to implement the receiving function in the transceiver 703 can be regarded as a receiver, and the receiver is used to perform the receiving steps in the embodiment of the present application.
  • the device used to implement the sending function in the transceiver 703 can be regarded as a transmitter, and the transmitter is used to perform the sending steps in the embodiment of the present application.
  • the processor 701 is used to control and manage the actions of the terminal device.
  • the processor 701 is used to support the terminal device to execute the diagram. Steps 101 and 102 in 1, or steps 202, 204 and 205 in Figure 2, steps 301 and 302 in Figure 3, steps 402 and 404 in Figure 4, and/or in the embodiment of the present application Actions performed by the terminal device during other processes described.
  • the processor 701 may communicate with other network entities through the transceiver 703, for example, with the network devices described above.
  • the memory 702 is used to store program codes and data of the terminal device.
  • the processor 701 is used to control and manage the actions of the network device.
  • the processor 701 is used to support the network device to execute the diagram. Steps 201 and 203 in 2, or step 302 in Figure 3, step 401, step 403, step 404 and step 405 in Figure 4, and/or network devices in other processes described in the embodiments of this application The action performed.
  • the processor 701 can communicate with other network entities through the transceiver 703, for example, with the above-mentioned terminal device.
  • Memory 702 is used to store program codes and data for network devices.
  • the embodiment of this application defines the one-way communication link from the access network to the terminal device as a downlink.
  • the data transmitted on the downlink is downlink data, and the transmission direction of downlink data is called the downlink direction; while the one-way communication link from the terminal device to the access network is the uplink, and the data transmitted on the uplink It is uplink data, and the transmission direction of uplink data is called the upstream direction.
  • Multiple appearing in the embodiments of this application refers to two or more than two.
  • connection appearing in the embodiments of this application refers to various connection methods such as direct connection or indirect connection to realize communication between devices, and the embodiments of this application do not limit this in any way.
  • the above embodiments may be implemented in whole or in part by software, hardware, firmware, or any other combination.
  • the above-described embodiments may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission by wired or wireless means to another website site, computer, server or data center.
  • the size of the sequence numbers of the above-mentioned processes does not mean the order of execution.
  • the execution order of each process should be determined by its functions and internal logic, and should not be used in the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed methods, devices and systems can be implemented in other ways.
  • the device embodiments described above are only illustrative; for example, the division of the units is only a logical function division, and there may be other division methods during actual implementation; for example, multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in various embodiments of the present application may be integrated into one processing unit, each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-mentioned integrated unit implemented in the form of a software functional unit can be stored in a computer-readable storage medium.
  • the above-mentioned software functional unit is stored in a storage medium and includes a number of instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute some steps of the method described in various embodiments of this application.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande concerne un procédé et un appareil de mise à jour de cellule pour un groupe de cellules secondaires, ainsi qu'un support de stockage. Le procédé de mise à jour de cellule consiste à : après qu'un dispositif terminal a configuré une mise à jour conditionnelle de cellule principale secondaire, déterminer si des cellules principales secondaires candidates satisfont une condition d'exécution de mise à jour; et en réponse à la satisfaction par une cellule principale secondaire candidate de la condition d'exécution de mise à jour, le dispositif terminal, n'ayant pas accédé à la cellule principale secondaire candidate et ayant reçu une commande de mise à jour de couche 1 ou de couche 2 pour une cellule principale secondaire cible, exécuter une mise à jour sur la cellule principale secondaire candidate ou une mise à jour sur la cellule principale secondaire cible. La présente demande concerne une solution de mise en œuvre permettant d'effectuer de manière flexible une mise à jour de cellule lorsqu'il existe une mise à jour conditionnelle de cellule principale secondaire et une mise à jour de couche 1 ou de couche 2.
PCT/CN2023/096439 2022-05-27 2023-05-26 Procédé et appareil de mise à jour de cellule pour groupe de cellules secondaires, et support de stockage WO2023227090A1 (fr)

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CN202210591005.0A CN117177320A (zh) 2022-05-27 2022-05-27 用于辅小区组的小区更新方法及装置、存储介质
CN202210591005.0 2022-05-27

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120218973A1 (en) * 2010-01-11 2012-08-30 Zte Corporation Terminal and handover method
CN110545567A (zh) * 2019-09-29 2019-12-06 展讯通信（上海）有限公司 小区条件更新方法及用户设备、计算机可读存储介质
WO2021133933A1 (fr) * 2019-12-23 2021-07-01 Qualcomm Incorporated Restriction d'emplacement de partie/fréquence de bande passante pour une mobilité intercellulaire centrée sur l1/l2
CN113508617A (zh) * 2018-12-10 2021-10-15 高通股份有限公司 用于有条件切换过程的小区和波束选择

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120218973A1 (en) * 2010-01-11 2012-08-30 Zte Corporation Terminal and handover method
CN113508617A (zh) * 2018-12-10 2021-10-15 高通股份有限公司 用于有条件切换过程的小区和波束选择
CN110545567A (zh) * 2019-09-29 2019-12-06 展讯通信（上海）有限公司 小区条件更新方法及用户设备、计算机可读存储介质
CN114222336A (zh) * 2019-09-29 2022-03-22 展讯通信（上海）有限公司 小区条件更新方法及用户设备、计算机可读存储介质
WO2021133933A1 (fr) * 2019-12-23 2021-07-01 Qualcomm Incorporated Restriction d'emplacement de partie/fréquence de bande passante pour une mobilité intercellulaire centrée sur l1/l2

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