WO2024022341A1 - Procédé de transfert cellulaire, terminal, station de base, système de communication et support d'enregistrement - Google Patents

Procédé de transfert cellulaire, terminal, station de base, système de communication et support d'enregistrement Download PDF

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Publication number
WO2024022341A1
WO2024022341A1 PCT/CN2023/109129 CN2023109129W WO2024022341A1 WO 2024022341 A1 WO2024022341 A1 WO 2024022341A1 CN 2023109129 W CN2023109129 W CN 2023109129W WO 2024022341 A1 WO2024022341 A1 WO 2024022341A1
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WO
WIPO (PCT)
Prior art keywords
indication information
layer
cell
target cell
information
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PCT/CN2023/109129
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English (en)
Chinese (zh)
Inventor
刘胜楠
蒋峥
佘小明
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中国电信股份有限公司
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Publication of WO2024022341A1 publication Critical patent/WO2024022341A1/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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • 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
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • 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
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters

Definitions

  • the present disclosure relates to the field of wireless communications, and in particular to a cell switching method, terminal, base station, communication system and storage medium.
  • the NR New Radio
  • the NR New Radio
  • the cell coverage radius becomes smaller, and the user equipment (User Equipment, UE) will experience more trouble in the network.
  • Frequent serving cell change processes such as primary cell (Primary Cell, Pcell) and primary secondary cell (Primary Secondary Cell, PScell) changes, as well as the addition and release process of secondary cell (Secondary Cell, SCell), etc.
  • the current serving cell change process is based on Layer 3 (Layer 3, L3) measurement and is triggered by RRC (Radio Resource Control, Radio Resource Control) signaling. All processes require complete Layer 2 (Layer 2, L2) and One (Layer 1, L1) reset, thus introducing more delay and signaling overhead.
  • Layer 3 Layer 3, L3
  • RRC Radio Resource Control, Radio Resource Control
  • Some embodiments of the present disclosure provide a cell switching method, which is applied to terminals, including:
  • the layer one measurement related configuration perform layer one measurement on the candidate target cell and report the measurement results to the base station;
  • the first indication information also includes one or more of the following information:
  • Mobility indication information which is used to instruct the terminal to perform cell switching based on layer one or layer two signaling, such as L1/L2 mobility indicator IE or other named information elements with the same indication function;
  • the maximum allowed number of consecutive executions of cell handovers based on layer one or layer two signaling such as maximum frequency L1/L2 mobility indication IE or other names with the same indication function.
  • the second indication information also includes timing advance adjustment indication information, used to indicate the timing advance offset value between the target cell and the source cell;
  • Initiating access to the corresponding target cell includes:
  • the timing advance of the target cell is determined, and the timing advance of the target cell is determined according to the timing advance of the target cell. Initiate access.
  • the second indication information also includes information about the target beam of the target cell
  • Initiating access to the corresponding target cell includes:
  • the target cell information indicated by the second indication information and the target beam information of the target cell access is initiated to the target beam in the corresponding target cell.
  • the layer one signaling is downlink control information DCI
  • the layer two signaling is media access control MAC control element CE.
  • it also includes: obtaining the target cell information from the transmission configuration indication TCI field in the DCI; or obtaining the target cell information from the serving cell identification field or the TCI status identification field in the MAC CE.
  • the method further includes: if the first indication information includes a valid time, starting a timer after receiving the first indication information; if the time of the timer reaches the valid time indicated by the first indication information, The maximum value indicates that the base station validity time has reached the maximum value through MAC CE or uplink control information UCI, and the relevant configuration indicated by the first indication information is released.
  • the method further includes: if the first indication information includes the maximum number of consecutive executions of cell switching based on layer one or layer two signaling, starting a counter after receiving the first indication information, and if the counter records The number of times the terminal performs cell switching based on layer one or layer two signaling reaches the maximum number of times indicated by the first indication information, and the terminal indicates through MAC CE or UCI that the base station has reached the maximum number of times, and releases the relevant configuration indicated by the first indication information.
  • receiving the first indication information sent by the base station includes: receiving the base station through radio resource control Control the first indication information sent by RRC signaling, where the RRC signaling is RRC Reconfiguration signaling.
  • Some embodiments of the present disclosure provide a cell switching method, which is applied to a base station, including:
  • the first indication information includes one or more of the following information: candidate target cell information, where there are one or more candidate target cells; layer one measurement related configuration;
  • the second indication information includes target cell information and is used to instruct the terminal to switch to the target. community.
  • the first indication information also includes one or more of the following information:
  • Mobility indication information the mobility indication information is used to instruct the terminal to perform cell switching based on layer one or layer two signaling;
  • the maximum allowed number of consecutive cell handovers based on Layer 1 or Layer 2 signaling.
  • the second indication information also includes timing advance adjustment indication information, used to indicate the timing advance offset value between the target cell and the source cell, so that the terminal can determine the timing advance amount of the target cell, and Initiate access to the target cell.
  • the method further includes: the second indication information further includes information about the target beam of the target cell, so that the terminal initiates access to the target beam in the corresponding target cell.
  • the layer one signaling is downlink control information DCI
  • the layer two signaling is media access control MAC control element CE.
  • the transmission configuration in the DCI indicates that the TCI field sets the target cell information.
  • the target cell information is set in the serving cell identification field or the TCI status identification field in the MAC CE.
  • sending the first indication information to the terminal includes: sending the first indication information to the terminal through radio resource control RRC signaling.
  • the method further includes: delivering new first indication information to the terminal through RRC signaling.
  • Some embodiments of the present disclosure provide a terminal, including: a memory; and a processor coupled to the memory, the processor being configured to execute the cell switching method of each embodiment based on instructions stored in the memory. .
  • Some embodiments of the present disclosure provide a base station, including: a memory; and a processor coupled to the memory, the processor being configured to execute the cell switching method of each embodiment based on instructions stored in the memory. .
  • Some embodiments of the present disclosure provide a communication system, including: a terminal; and a base station.
  • Some embodiments of the present disclosure provide a non-transitory computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the steps of the cell switching method of each embodiment are implemented.
  • Figure 1 shows a schematic diagram of the 5G wireless network architecture.
  • Figure 2 shows a schematic diagram of the protocol layer division of CU, DU and AAU of a 5G base station.
  • Figure 3 shows a schematic diagram of cell handover under the CU-DU separation architecture.
  • Figure 4 shows a schematic flowchart of a cell handover method based on L1 measurement reporting and L1/L2 signaling indication control according to some embodiments of the present disclosure.
  • Figure 5 shows a schematic diagram of cell handover in a single connection scenario.
  • Figure 6A shows a schematic diagram of the change of primary and secondary cells in a dual connectivity scenario.
  • Figure 6B shows a schematic diagram of secondary cell changes in a carrier aggregation scenario.
  • Figure 7 shows a schematic diagram of a terminal according to some embodiments of the present disclosure.
  • Figure 8 shows a schematic diagram of a base station according to some embodiments of the present disclosure.
  • Figure 9 shows a schematic structural diagram of a communication system according to some embodiments of the present disclosure.
  • the embodiment of the present disclosure triggers the terminal to change the serving cell based on L1 measurement reporting and L1/L2 signaling indication control.
  • the process can effectively reduce handover signaling processing delay and signaling overhead, and related configurations can be configured once and reused multiple times, which can effectively reduce network signaling load and delay in mobility scenarios.
  • Figure 1 shows a schematic diagram of the 5G wireless network architecture.
  • the fifth generation mobile communication technology (5th Generation Mobile Communication Technology, referred to as 5G) network includes 5G core network and 5G base station.
  • 5G base stations adopt a separate architecture of CU (Centralized Unit) and DU (Distributed Unit), including CU, DU and AAU (Active Antenna Unit).
  • CU Centralized Unit
  • DU Distributed Unit
  • AAU Active Antenna Unit
  • Figure 2 shows a schematic diagram of the protocol layer division of CU, DU and AAU of a 5G base station.
  • CU includes RRC (Radio Resource Control, Radio Resource Control) layer and PDCP (Packet Data Convergence Protocol, Packet Data Convergence Protocol) layer
  • DU includes RLC (Radio Link Control, Radio Link Control) layer
  • MAC medium access control, media access control
  • High-PHY high physical
  • AAU includes Low-PHY (low physical) layer
  • RF Radio Frequency, radio frequency
  • layer one refers to the physical layer
  • layer two refers to the MAC layer
  • layer three refers to the RRC layer.
  • Figure 3 shows a schematic diagram of cell handover under the CU-DU separation architecture.
  • one CU controls multiple DUs, and each DU manages multiple cells.
  • Each cell can be identified by PCI (Physical Cell Identifier, physical cell identifier).
  • PCI Physical Cell Identifier, physical cell identifier
  • the terminal moves in the network, it will switch from the cell managed by DU-1 to the cell managed by DU-2, and then to the cell managed by DU-3, resulting in a change in the serving cell.
  • TA timing advance through TA (Timing Advance) management
  • the terminal switches from a cell managed by DU-1 to a cell managed by DU-2 and DU-3. There is no need to perform the synchronization process during the cell process.
  • triggering the terminal to perform the serving cell change process based on L1 measurement reporting and L1/L2 signaling indication control can effectively reduce handover signaling processing delay and Signaling overhead, and related configurations can be configured once and reused multiple times, which can effectively reduce network signaling load and delay in mobility scenarios.
  • Figure 4 shows a schematic flowchart of a cell handover method based on L1 measurement reporting and L1/L2 signaling indication control according to some embodiments of the present disclosure.
  • step 401 the terminal receives the first indication information sent by the base station through RRC (Radio Resource Control, Radio Resource Control) signaling.
  • RRC Radio Resource Control, Radio Resource Control
  • the RRC signaling is RRC Reconfiguration signaling.
  • the first indication information includes one or more of the following information (1-5):
  • Candidate target cell information identification or index
  • candidate target cells there are one or more candidate target cells
  • Layer 1 measurement related configuration that is, physical layer (Physical Layer, namely Layer1, L1) measurement related configuration
  • RSRP Reference Singal Receiving Power, reference signal receiving power
  • RSS Reference Signal Receiving Quality, reference signal receiving quality
  • SINR Signal to Interference plus Noise Ratio, signal and interference plus noise ratio
  • Mobility indication information which is used to instruct the terminal to perform cell switching based on layer one or layer two signaling, such as L1/L2 mobility indicator IE or other named information elements with the same indication function;
  • step 402 the terminal performs layer 1 measurement on the candidate target cell according to the layer 1 measurement related configuration, and reports the measurement result to the base station.
  • the base station determines the target cell according to the measurement result, and sends second indication information to the terminal through layer 1 or layer 2 signaling.
  • the second indication information includes target cell information (identification or index) and is used to instruct the terminal to switch to the target cell.
  • the second indication information also includes timing advance adjustment indication information, which is used to indicate the timing advance offset value between the target cell and the source cell, so that the terminal can determine the timing advance amount of the target cell and initiate access to the target cell. .
  • the second indication information also includes information about the target beam of the target cell, so that the terminal initiates access to the target beam in the corresponding target cell.
  • the layer one signaling is downlink control information (DCI), and the target cell information is set in the TCI (Transmission Configuration Indication) field in the DCI.
  • DCI Downlink Control information
  • TCI Transmission Configuration Indication
  • the layer 2 signaling is MAC CE (Control Element, control unit), and the target cell information is set in the serving cell identification field or the TCI status identification field in the MAC CE.
  • step 404 the terminal receives the second indication information sent by the base station through layer one or layer two signaling.
  • the layer one signaling is DCI, and the target cell information is obtained from the TCI field in DCI.
  • the layer 2 signaling is MAC CE, and the target cell information is obtained from the serving cell identification field or the TCI status identification field in the MAC CE.
  • step 405 the terminal initiates access to the corresponding target cell according to the target cell information indicated by the second indication information. Since the terminal obtains the TA offset value in advance, it does not need to perform the RACH (Random Access Channel) process, reducing access delay.
  • RACH Random Access Channel
  • the terminal determines the timing advance of the target cell based on the timing advance of the source cell and the timing advance offset value between the target cell and the source cell indicated by the timing advance adjustment indication information, and sends the signal to the target according to the timing advance of the target cell.
  • the cell initiates access.
  • the terminal initiates access to the target beam in the corresponding target cell according to the target cell information indicated by the second indication information and the target beam information of the target cell.
  • step 406 the terminal saves the relevant configuration in the first indication information, and continues to perform layer 1 measurement and reporting until one of the following conditions (1-3) is met:
  • the terminal starts a timer after receiving the first indication information. If the timer reaches the maximum value of the valid time indicated by the first indication information, , indicating that the base station validity time has reached the maximum value through MAC CE or UCI (Uplink Control Information), and releasing the relevant configuration indicated by the first indication information.
  • the timer reaches the maximum value of the valid time indicated by the first indication information, , indicating that the base station validity time has reached the maximum value through MAC CE or UCI (Uplink Control Information), and releasing the relevant configuration indicated by the first indication information.
  • the terminal If the first indication information includes the maximum number of consecutive cell handovers based on layer one or layer two signaling, the terminal starts a counter after receiving the first indication information. If the counter records that the terminal is based on layer one or layer two signaling, the counter is started. When the number of cell handovers performed by Layer 2 signaling reaches the maximum number of times indicated by the first indication information, the base station is instructed through MAC CE or UCI that the maximum number of times has been reached, and the relevant configuration indicated by the first indication information is released.
  • the base station delivers new first instruction information to the terminal through RRC signaling, that is, the base station delivers a new handover configuration or handover instruction to the terminal.
  • the disclosed embodiment is based on L1 measurement reporting and L1/L2 signaling indication control, triggering the terminal to perform the serving cell change process, which can effectively reduce the handover signaling processing delay and signaling overhead, and the related configuration can be configured once and repeated multiple times. It can effectively reduce network signaling load and delay in mobility scenarios.
  • the cell handover method based on L1 measurement reporting and L1/L2 signaling indication control can be applied to cell handover scenarios, including but not limited to cross-DU cell handover scenarios within the same CU or cross-CU cell handover scenarios.
  • the serving cell changes in a single connection scenario (as shown in Figure 5), and the primary cell (Pcell) or primary and secondary cells (PScell) in a dual connection scenario. Change (as shown in Figure 6A), and the primary cell (Pcell) or secondary cell (Scell) changes in the carrier aggregation scenario (as shown in Figure 6B).
  • Figure 5 shows a schematic diagram of cell handover in a single connection scenario.
  • dense cell scenarios such as Ultra Dense Network (UDN) scenarios
  • UDN Ultra Dense Network
  • Figure 6A shows a schematic diagram of the change of primary and secondary cells in a dual connectivity scenario.
  • the UE moves in the dual connectivity scenario, and the serving cell changes from ⁇ Pcell1 ⁇ to ⁇ Pcell1, PScell3 ⁇ and then to ⁇ Pcell1, PScell4 ⁇ , in which the primary and secondary cells PScell have changed.
  • Figure 6B shows a schematic diagram of secondary cell changes in a carrier aggregation scenario.
  • the UE moves in the carrier aggregation scenario, and the serving cell changes from ⁇ Pcell1 ⁇ to ⁇ Pcell1, Scell3 ⁇ and then to ⁇ Pcell1, Scell4 ⁇ , in which the secondary cell changes.
  • this solution is also suitable for the primary cell (Pcell) change or the primary cell and secondary cell (Scell) exchange scenario in the carrier aggregation scenario.
  • triggering the terminal to perform the serving cell change process based on L1 measurement reporting and L1/L2 signaling indication control can effectively reduce handover signaling processing delay and signaling overhead, and related configurations can be configured once and multiple times. Multiplexing can effectively reduce network signaling load and delay in mobility scenarios.
  • Figure 7 shows a schematic diagram of a terminal according to some embodiments of the present disclosure.
  • the terminal 700 of this embodiment includes: a memory 710 and a processor 720 coupled to the memory 710.
  • the processor 720 is configured to execute any of the foregoing embodiments based on instructions stored in the memory 710. Cell switching method performed by the terminal.
  • Some embodiments of the present disclosure provide a cell switching method, which is applied to terminals, including:
  • the layer one measurement related configuration perform layer one measurement on the candidate target cell and report the measurement results to the base station;
  • the first indication information also includes one or more of the following information:
  • Mobility indication information the mobility indication information is used to instruct the terminal to perform cell switching based on layer one or layer two signaling;
  • the maximum allowed number of consecutive cell handovers based on Layer 1 or Layer 2 signaling.
  • the second indication information also includes timing advance adjustment indication information, used to indicate the timing advance offset value between the target cell and the source cell;
  • Initiating access to the corresponding target cell includes:
  • the timing advance of the target cell is determined, and the timing advance of the target cell is determined according to the timing advance of the target cell. Initiate access.
  • the second indication information also includes information about the target beam of the target cell
  • Initiating access to the corresponding target cell includes:
  • the target cell information indicated by the second indication information and the target beam information of the target cell access is initiated to the target beam in the corresponding target cell.
  • the layer one signaling is downlink control information DCI
  • the layer two signaling is media access control MAC control element CE.
  • it also includes:
  • the method further includes: if the first indication information includes a valid time, starting a timer after receiving the first indication information, and if the time of the timer reaches the valid time indicated by the first indication information, The maximum value indicates that the base station validity time has reached the maximum value through MAC CE or uplink control information UCI, and the relevant configuration indicated by the first indication information is released.
  • the method further includes: if the first indication information includes the maximum number of consecutive executions of cell switching based on layer one or layer two signaling, starting a counter after receiving the first indication information, and if the counter records The number of times the terminal performs cell switching based on layer one or layer two signaling reaches the maximum number of times indicated by the first indication information, and the terminal indicates through MAC CE or UCI that the base station has reached the maximum number of times, and releases the relevant configuration indicated by the first indication information.
  • receiving the first indication information sent by the base station includes: receiving the first indication information sent by the base station through radio resource control RRC signaling.
  • the terminal 700 may also include an input/output interface 730, a network interface 740, a storage interface 750, and the like. These interfaces 730, 740, 750, the memory 710 and the processor 720 may be connected through a bus 760, for example.
  • the input and output interface 730 provides a connection interface for input and output devices such as a monitor, mouse, keyboard, and touch screen.
  • Network Interface 740 provides connection interfaces for various networked devices.
  • the storage interface 750 provides a connection interface for external storage devices such as SD cards and USB disks.
  • Bus 760 may use any of a variety of bus structures.
  • bus structures include, but are not limited to, Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MCA) bus, and Peripheral Component Interconnect (PCI) bus.
  • Figure 8 shows a schematic diagram of a base station according to some embodiments of the present disclosure.
  • the base station 800 of this embodiment includes: a memory 810 and a processor 820 coupled to the memory 810.
  • the processor 820 is configured to execute any of the foregoing embodiments based on instructions stored in the memory 810. Cell handover method performed by base station.
  • Some embodiments of the present disclosure provide a cell switching method, which is applied to a base station, including:
  • the first indication information includes one or more of the following information: candidate target cell information, where there are one or more candidate target cells; layer one measurement related configuration;
  • the second indication information includes target cell information and is used to instruct the terminal to switch to the target. community.
  • the first indication information also includes one or more of the following information:
  • Mobility indication information the mobility indication information is used to instruct the terminal to perform cell switching based on layer one or layer two signaling;
  • the maximum allowed number of consecutive cell handovers based on Layer 1 or Layer 2 signaling.
  • the second indication information also includes timing advance adjustment indication information, used to indicate the timing advance offset value between the target cell and the source cell, so that the terminal can determine the timing advance amount of the target cell, and Initiate access to the target cell.
  • the method further includes: the second indication information further includes information about the target beam of the target cell, so that the terminal initiates access to the target beam in the corresponding target cell.
  • the layer one signaling is downlink control information DCI
  • the layer two signaling is media access control MAC control element CE.
  • the transmission configuration in the DCI indicates that the TCI field sets the target cell information.
  • the target cell information is set in the serving cell identification field or the TCI status identification field in the MAC CE.
  • sending the first indication information to the terminal includes: sending the first indication information to the terminal through radio resource control RRC signaling.
  • the method further includes: delivering new first indication information to the terminal through RRC signaling.
  • the base station 800 may also include an input and output interface 830, a network interface 840, a storage interface 850, and the like. These interfaces 830, 840, 850, the memory 810 and the processor 820 may be connected through a bus 860, for example.
  • the input and output interface 830 provides a connection interface for input and output devices such as a monitor, mouse, keyboard, and touch screen.
  • Network interface 840 provides a connection interface for various networked devices.
  • the storage interface 850 provides a connection interface for external storage devices such as SD cards and USB disks.
  • Bus 860 may use any of a variety of bus structures.
  • the bus structure includes but is not limited to the Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MCA) bus, and Peripheral Component Interconnect (PCI) bus.
  • ISA Industry Standard Architecture
  • MCA Micro Channel Architecture
  • PCI Peripheral Component Interconnect
  • Figure 9 shows a schematic structural diagram of a communication system according to some embodiments of the present disclosure.
  • the communication system 900 of this embodiment includes: a terminal 700; and a base station 800.
  • the base station 800 can control multiple terminals 700.
  • Some embodiments of the present disclosure provide a non-transitory computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the steps of the cell switching method of each embodiment are implemented.
  • embodiments of the present disclosure may be provided as methods, systems, or computer program products. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment that combines software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more non-transitory computer-readable storage media (including, but not limited to, disk memory, CD-ROM, optical storage, etc.) embodying computer program code therein. .
  • These computer program instructions may also be stored in a computer-readable memory that causes a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction means, the instructions
  • the device implements the functions specified in a process or processes of the flowchart and/or a block or blocks of the block diagram.
  • These computer program instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operating steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby executing on the computer or other programmable device.
  • Instructions provide steps for implementing the functions specified in a process or processes of a flowchart diagram and/or a block or blocks of a block diagram.

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

Abstract

La présente divulgation se rapporte au domaine des communications sans fil. L'invention concerne un procédé de transfert cellulaire, un terminal, une station de base, un système de communication et un support d'enregistrement. Le procédé de transfert cellulaire comprend les étapes consistant à : recevoir des premières informations d'indication envoyées par une station de base, les premières informations d'indication comprenant une ou plusieurs des informations suivantes : des informations de cellules cibles candidates, une ou plusieurs cellules cibles candidates étant présentes, et des configurations associées à la mesure de couche 1; selon les configurations relatives à la mesure de couche 1, exécuter une mesure de couche 1 sur les cellules cibles candidates et rapporter un résultat de mesure à la station de base ; recevoir des secondes informations d'indication envoyées par la station de base au moyen d'une signalisation de couche -1 ou de couche 2, les secondes informations d'indication comprenant des informations de cellules cibles ; et selon les informations de cellule cible indiquées par les secondes informations d'indication, démarrer un accès à une cellule cible correspondante. Par conséquent, le retard de traitement de signalisation de transfert et les surdébits de signalisation sont efficacement réduits.
PCT/CN2023/109129 2022-07-28 2023-07-25 Procédé de transfert cellulaire, terminal, station de base, système de communication et support d'enregistrement WO2024022341A1 (fr)

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CN202210897377.6 2022-07-28
CN202210897377.6A CN117528688A (zh) 2022-07-28 2022-07-28 小区切换方法、终端、基站、通信系统和存储介质

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Citations (4)

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