WO2025243721A1 - Station de base, terminal et procédé de communication - Google Patents

Station de base, terminal et procédé de communication

Info

Publication number
WO2025243721A1
WO2025243721A1 PCT/JP2025/014352 JP2025014352W WO2025243721A1 WO 2025243721 A1 WO2025243721 A1 WO 2025243721A1 JP 2025014352 W JP2025014352 W JP 2025014352W WO 2025243721 A1 WO2025243721 A1 WO 2025243721A1
Authority
WO
WIPO (PCT)
Prior art keywords
base station
terminal
message
system information
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/JP2025/014352
Other languages
English (en)
Japanese (ja)
Inventor
天楊 閔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Docomo Inc
Original Assignee
NTT Docomo Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NTT Docomo Inc filed Critical NTT Docomo Inc
Publication of WO2025243721A1 publication Critical patent/WO2025243721A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to a base station, a terminal, and a communication method in a wireless communication system.
  • 3GPP registered trademark
  • 3rd Generation Partnership Project 3rd Generation Partnership Project
  • 5G Fifth Generation Partnership Project
  • NR New Radio
  • 5G various wireless technologies and network architectures are being studied to meet the requirements of achieving a throughput of 10 Gbps or more while keeping wireless section latency to 1 ms or less (for example, Non-Patent Document 1 and Non-Patent Document 2).
  • 3GPP Rel-19 is considering a procedure for notifying terminals of system information on demand in idle/inactive mode in relation to Network Energy Saving (NES).
  • NES Network Energy Saving
  • the present invention has been made in consideration of the above points, and aims to notify terminals in a wireless network of updates to system information of base stations that support network energy saving functions.
  • the disclosed technology provides a base station having a receiver that receives from a first base station a first message including information indicating an update to system information at the first base station corresponding to a network energy saving function and the updated system information, and a transmitter that transmits to a terminal a second message including information indicating an update to the system information of the first base station.
  • the disclosed technology makes it possible to notify terminals in a wireless network of updates to system information from base stations that support network energy saving functions.
  • FIG. 1 is a diagram illustrating a wireless communication system according to an embodiment of the present invention.
  • 1 is a diagram illustrating a wireless communication system according to an embodiment of the present invention.
  • FIG. 10 is a diagram for explaining Case 1 in the embodiment of the present invention.
  • FIG. 10 is a diagram for explaining Case 2 in the embodiment of the present invention.
  • FIG. 10 is a diagram for explaining Case 3 in the embodiment of the present invention.
  • FIG. 10 is a diagram showing an example of a sequence diagram relating to a first solution method in an embodiment of the present invention.
  • FIG. 10 is a diagram showing an example of a sequence diagram relating to a solution method 2 in an embodiment of the present invention.
  • 10A and 10B are diagrams for explaining a transmission method using an Xn interface in an embodiment of the present invention.
  • FIG. 1 is a diagram for explaining a transmission method using an F1 interface in an embodiment of the present invention.
  • FIG. FIG. 2 is a diagram illustrating an example of a functional configuration of a base station 10 according to an embodiment of the present invention.
  • FIG. 2 is a diagram illustrating an example of a functional configuration of a terminal 20 according to an embodiment of the present invention.
  • 2 is a diagram illustrating an example of a hardware configuration of a base station 10 or a terminal 20 according to an embodiment of the present invention.
  • FIG. FIG. 2 is a diagram showing an example of the configuration of a vehicle 2001 according to an embodiment of the present invention.
  • LTE Long Term Evolution
  • NR NR
  • SS Synchronization signal
  • PSS Primary SS
  • SSS Secondary SS
  • PBCH Physical broadcast channel
  • PRACH Physical random access channel
  • PDCCH Physical Downlink Control Channel
  • PDSCH Physical Downlink Shared Channel
  • PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Shared Channel
  • the duplex method may be a TDD (Time Division Duplex) method, an FDD (Frequency Division Duplex) method, or another method (for example, Flexible Duplex, etc.).
  • "configuring" radio parameters etc. may mean that predetermined values are pre-configured, or that radio parameters notified from the base station 10 or terminal 20 are configured.
  • FIG. 1 is a diagram showing an example of the configuration of a wireless communication system according to an embodiment of the present invention.
  • the wireless communication system according to an embodiment of the present invention includes a base station 10 and a terminal 20. While FIG. 1 shows one base station 10 and one terminal 20, this is an example, and there may be multiple of each.
  • the base station 10 is a communication device that provides one or more cells and performs wireless communication with the terminal 20.
  • the physical resources of a wireless signal are defined in the time domain and the frequency domain.
  • the time domain may be defined by the number of OFDM (Orthogonal Frequency Division Multiplexing) symbols, and the frequency domain may be defined by the number of subcarriers or the number of resource blocks.
  • the base station 10 transmits synchronization signals and system information to the terminal 20.
  • the synchronization signals are, for example, PSS and SSS.
  • the system information is transmitted, for example, via the PBCH and is also called broadcast information.
  • the synchronization signals and system information may also be called SSB (SS/PBCH block).
  • the base station 10 transmits control signals or data to the terminal 20 via DL (Downlink) and receives control signals or data from the terminal 20 via UL (Uplink). Both the base station 10 and the terminal 20 are capable of transmitting and receiving signals by performing beamforming. Furthermore, both the base station 10 and the terminal 20 can apply MIMO (Multiple Input Multiple Output) communications to DL or UL. Furthermore, both the base station 10 and the terminal 20 may communicate via a secondary cell (SCell: Secondary Cell) and a primary cell (PCell: Primary Cell) using CA (Carrier Aggregation). Furthermore, the terminal 20 may communicate via the primary cell of the base station 10 and a primary secondary cell group cell (PSCell: Primary SCG Cell) of another base station 10 using DC (Dual Connectivity).
  • SCell Secondary Cell
  • PCell Primary Cell
  • CA Carrier Aggregation
  • the terminal 20 may communicate via the primary cell of the base station 10 and a primary secondary cell group cell (PSCell: Primary SCG Cell) of another base station 10 using DC (Dual Connectivity).
  • Terminal 20 is a communication device equipped with wireless communication functions, such as a smartphone, mobile phone, tablet, wearable device, or M2M (Machine-to-Machine) communication module. As shown in FIG. 1, terminal 20 receives control signals or data from base station 10 via DL and transmits control signals or data to base station 10 via UL, thereby utilizing various communication services provided by the wireless communication system. Terminal 20 also receives various reference signals transmitted from base station 10 and measures propagation path quality based on the reception results of the reference signals.
  • M2M Machine-to-Machine
  • FIG. 2 is a diagram illustrating a wireless communication system in an embodiment of the present invention.
  • Figure 2 shows an example configuration of a wireless communication system when DC (Dual connectivity) is implemented.
  • base station 10A which serves as the MN (Master Node)
  • base station 10B which serves as the SN (Secondary Node).
  • Base station 10A and base station 10B are each connected to a core network.
  • Terminal 20 can communicate with both base station 10A and base station 10B.
  • the cell group provided by base station 10A which is an MN
  • the MCG Master Cell Group
  • the cell group provided by base station 10B which is an SN
  • the SCG Secondary Cell Group
  • the MCG consists of one PCell and one or more SCells
  • the SCG consists of one PSCell (Primary SCG Cell) and one or more SCells.
  • Cell A periodically transmits at least its own system information (SIB1).
  • SIB1 system information
  • the cell corresponding to the NES may transmit SIB1 in response to an uplink wakeup signal (UL WUS) from the terminal 20.
  • UL WUS uplink wakeup signal
  • SIB1 to be sent on demand to a terminal 20 in idle/inactive mode:
  • Option 1 The terminal 20 transmits the UL WUS to the NES cell.
  • Option 2 The terminal 20 transmits the UL WUS to the cell A.
  • Option A The terminal 20 acquires the configuration for the UL WUS from the NES cell.
  • Option B The terminal 20 acquires the configuration for the UL WUS from cell A.
  • Option X The terminal 20 receives on-demand SIB1 from the NES cell.
  • Option Y The terminal 20 receives SIB1 from cell A.
  • Case 1 A combination of option 1, option A, and option X.
  • Case 2 A combination of option 1, option B, and option X.
  • Case 3 A combination of option 2, option B, and option Y.
  • Figure 3 is a diagram for explaining case 1 in an embodiment of the present invention. Each process will be explained below.
  • the base station 10 is an NES cell.
  • Step 1 The base station 10 transmits WUS configuration information to the terminal 20.
  • Step 2 The terminal 20 sends a message to the base station 10 requesting on-demand SIB1.
  • Step 3 The base station 10 transmits the on-demand SIB1 to the terminal 20.
  • FIG. 4 is a diagram illustrating Case 2 in an embodiment of the present invention. Each process will be explained below.
  • base station 10A is cell A
  • base station 10B is the NES cell.
  • Step 1 The base station 10A sends WUS configuration information to the terminal 20 using an SIB or RRC release message.
  • Step 2 Terminal 20 sends a message to base station 10B requesting on-demand SIB1.
  • Step 3 The base station 10B transmits an on-demand SIB1 to the terminal 20.
  • FIG. 5 is a diagram illustrating Case 3 in an embodiment of the present invention. Each process will be explained below.
  • base station 10A is cell A
  • base station 10B is the NES cell.
  • Step 1 The base station 10A sends WUS configuration information to the terminal 20 using an SIB or RRC release message.
  • Step 2 Terminal 20 sends a message to base station 10A requesting on-demand SIB1.
  • Step 3 Base station 10A transmits the on-demand SIB1 of base station 10B to terminal 20.
  • Fig. 6 is a diagram showing an example of a sequence diagram relating to solution method 1 in an embodiment of the present invention. The processing of each step will now be described.
  • base station 10A is cell A
  • base station 10B is the NES cell.
  • Step 101 Base station 10B sends a message to base station 10A that includes information indicating that the system information at base station 10B has been updated and the updated system information.
  • Step 102 The base station 10A transmits to the terminal 20 a message including the information received in step 101 indicating that the system information at the base station 10B has been updated.
  • the message may be any of layer 1, layer 2, or layer 3 signals, such as a PDCCH, short message, MAC CE, SIB, or RRC message.
  • the message may also include an identifier of the base station 10B.
  • Step 103 Based on the message received in step 102, terminal 20 decides to obtain updated system information from base station 10B.
  • Step 104 Based on the message received in step 102, the terminal 20 generates a random access preamble (RA preamble) including information indicating that it requests updated system information from the base station 10B, and transmits the generated random access preamble to the base station 10A.
  • RA preamble a random access preamble including information indicating that it requests updated system information from the base station 10B
  • Step 105 Based on the random access preamble received from the terminal 20, the base station 10A recognizes that the terminal 20 is requesting updated system information from the base station 10B.
  • Step 106 Base station 10A sends a message containing updated system information for base station 10B to terminal 20.
  • the information used when the terminal 20 requests system information may be, for example, part of the configuration information related to the random access channel (RACH configuration) or part of the configuration information related to the wake-up signal (WUS configuration).
  • Fig. 7 is a diagram showing an example of a sequence diagram relating to solution method 2 in an embodiment of the present invention. The processing of each step will now be described.
  • base station 10A is cell A
  • base station 10B is the NES cell.
  • Step 201 Base station 10B sends to base station 10A a message including information indicating that the system information at base station 10B has been updated and the updated system information. Alternatively, the message may not include the updated system information.
  • Step 202 The base station 10A transmits to the terminal 20 a message including the information received in step 201 indicating that the system information at the base station 10B has been updated.
  • the message may be any of layer 1, layer 2, or layer 3 signals, such as a PDCCH, short message, MAC CE, SIB, or RRC message.
  • the message may also include an identifier of the base station 10B.
  • Step 203 Based on the message received in step 202, terminal 20 decides to obtain updated system information from base station 10B.
  • Step 204 Based on the message received in step 202, the terminal 20 generates a random access preamble (RA preamble) including information indicating that it requests updated system information from the base station 10B, and transmits the generated random access preamble to the base station 10B.
  • RA preamble a random access preamble including information indicating that it requests updated system information from the base station 10B
  • Step 205 Base station 10B sends a message containing updated system information of base station 10B to terminal 20.
  • the information used when the terminal 20 requests system information may be, for example, part of the configuration information related to the random access channel (RACH configuration) or part of the configuration information related to the wake-up signal (WUS configuration).
  • FIG. 8 is a diagram illustrating a transmission method using the Xn interface in an embodiment of the present invention. As shown in FIG. 8, for example, in step 101 of FIG. 6 or step 201 of FIG. 7, base station 10B may transmit a message to base station 10A using the Xn interface.
  • FIG. 9 is a diagram illustrating a transmission method using the F1 interface in an embodiment of the present invention.
  • base station 10B may transmit a message to base station 10A via CU (Central Unit) 30 using the F1 interface.
  • CU Central Unit
  • the above-described embodiment makes it possible to notify terminals in a wireless network of updates to system information from base stations that support network energy saving functions.
  • the base station 10 and the terminal 20 include functions for implementing the above-described embodiments. However, the base station 10 and the terminal 20 may each include only a part of the functions of the embodiments.
  • Fig. 10 is a diagram showing an example of the functional configuration of a base station 10 according to an embodiment of the present invention.
  • the base station 10 includes a transmitting unit 110, a receiving unit 120, a setting unit 130, and a control unit 140.
  • the functional configuration shown in Fig. 10 is merely an example.
  • the names of the functional divisions and functional units may be any as long as they can perform the operations according to the embodiment of the present invention.
  • the transmitter 110 has the function of generating signals to be transmitted to the terminal 20 and transmitting these signals wirelessly.
  • the receiver 120 has the function of receiving various signals transmitted from the terminal 20 and obtaining, for example, information of higher layers from the received signals.
  • the transmitter 110 also has the function of transmitting PSS, SSS, PBCH, DL/UL control signals, etc. to the terminal 20.
  • the receiver 120 also receives inter-network node messages from other network nodes.
  • the setting unit 130 stores pre-set setting information and various setting information to be sent to the terminal 20.
  • the setting information includes, for example, setting information related to Network Energy Saving (NES).
  • NES Network Energy Saving
  • control unit 140 performs control related to Network Energy Saving (NES).
  • the functional unit related to signal transmission in the control unit 140 may be included in the transmitting unit 110, and the functional unit related to signal reception in the control unit 140 may be included in the receiving unit 120.
  • NES Network Energy Saving
  • Fig. 11 is a diagram showing an example of the functional configuration of the terminal 20 according to an embodiment of the present invention.
  • the terminal 20 has a transmitting unit 210, a receiving unit 220, a setting unit 230, and a control unit 240.
  • the functional configuration shown in Fig. 11 is merely an example.
  • the names of the functional divisions and functional units may be any as long as they can execute the operations according to the embodiment of the present invention.
  • the transmitting unit 210 and the receiving unit 220 may be collectively referred to as a communication unit.
  • the transmitter 210 creates a transmission signal from the transmission data and transmits the transmission signal wirelessly.
  • the transmitter 210 also transmits capability information related to a low-power wake-up signal to the base station 10.
  • the receiver 220 receives various signals wirelessly and acquires higher layer signals from the received physical layer signals.
  • the receiver 220 also has the function of receiving PSS, SSS, PBCH, DL/UL/SL control signals, etc. transmitted from the base station 10.
  • the receiver 220 also receives setting information, instructions, notifications, etc. related to Network Energy Saving (NES) from the base station 10.
  • the setting unit 230 stores various setting information received by the receiver 220 from the base station 10.
  • the setting unit 230 also stores pre-set setting information.
  • the content of the setting information is, for example, setting information related to Network Energy Saving (NES).
  • control unit 240 performs settings related to Network Energy Saving (NES).
  • the functional unit related to signal transmission in the control unit 240 may be included in the transmitting unit 210, and the functional unit related to signal reception in the control unit 240 may be included in the receiving unit 220.
  • NES Network Energy Saving
  • each functional block may be realized using a single device that is physically or logically coupled, or may be realized using two or more physically or logically separated devices that are directly or indirectly connected (e.g., using wires, wirelessly, etc.) and these multiple devices.
  • the functional block may also be realized by combining software with the single device or multiple devices.
  • Functions include, but are not limited to, judgment, determination, assessment, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, regard, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assignment.
  • a functional block (component) that performs transmission functions is called a transmitting unit or transmitter.
  • transmitting unit or transmitter As mentioned above, there are no particular limitations on how these functions are implemented.
  • the base station 10, terminal 20, etc. in one embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure.
  • Figure 12 is a diagram showing an example of the hardware configuration of the base station 10 and terminal 20 in one embodiment of the present disclosure.
  • the above-mentioned base station 10 and terminal 20 may be physically configured as a computer device including a processor 1001, a storage device 1002, an auxiliary storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.
  • the term "apparatus" can be interpreted as a circuit, device, unit, etc.
  • the hardware configuration of the base station 10 and terminal 20 may be configured to include one or more of the devices shown in the figure, or may be configured to exclude some of the devices.
  • the functions of the base station 10 and terminal 20 are realized by loading specific software (programs) onto hardware such as the processor 1001 and storage device 1002, causing the processor 1001 to perform calculations, control communications via the communication device 1004, and control at least one of the reading and writing of data from and to the storage device 1002 and auxiliary storage device 1003.
  • the processor 1001 for example, runs an operating system to control the entire computer.
  • the processor 1001 may be configured as a central processing unit (CPU) that includes an interface with peripheral devices, a control unit, an arithmetic unit, registers, etc.
  • CPU central processing unit
  • control unit 140, control unit 240, etc. may be realized by the processor 1001.
  • the processor 1001 also loads programs (program code), software modules, data, etc. from at least one of the auxiliary storage device 1003 and the communication device 1004 into the storage device 1002, and executes various processes in accordance with these.
  • the programs used are those that cause a computer to execute at least some of the operations described in the above-described embodiments.
  • the control unit 140 of the base station 10 shown in FIG. 10 may be implemented by a control program stored in the storage device 1002 and running on the processor 1001.
  • the control unit 240 of the terminal 20 shown in FIG. 11 may be implemented by a control program stored in the storage device 1002 and running on the processor 1001.
  • While the various processes described above have been described as being executed by a single processor 1001, they may also be executed simultaneously or sequentially by two or more processors 1001.
  • the processor 1001 may be implemented on one or more chips.
  • the programs may also be transmitted from a network via a telecommunications line.
  • the storage device 1002 is a computer-readable recording medium and may be composed of, for example, at least one of a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), a RAM (Random Access Memory), etc.
  • the storage device 1002 may also be called a register, a cache, a main memory, etc.
  • the storage device 1002 can store executable programs (program code), software modules, etc. for implementing a communication method according to one embodiment of the present disclosure.
  • Auxiliary storage device 1003 is a computer-readable recording medium, and may be composed of at least one of, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (e.g., a compact disk, a digital versatile disk, a Blu-ray (registered trademark) disk), a smart card, flash memory (e.g., a card, a stick, a key drive), a floppy (registered trademark) disk, a magnetic strip, etc.
  • the above-mentioned storage medium may be, for example, a database, a server, or other suitable medium that includes at least one of storage device 1002 and auxiliary storage device 1003.
  • the communication device 1004 is hardware (transmitting/receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as a network device, network controller, network card, or communication module, for example.
  • the communication device 1004 may be configured to include high-frequency switches, duplexers, filters, frequency synthesizers, etc. to implement at least one of frequency division duplex (FDD) and time division duplex (TDD).
  • FDD frequency division duplex
  • TDD time division duplex
  • the transmitting/receiving antenna, amplifier unit, transmitting/receiving unit, transmission path interface, etc. may be implemented by the communication device 1004.
  • the transmitting/receiving unit may be implemented as a physically or logically separated transmitting unit and receiving unit.
  • the input device 1005 is an input device (e.g., a keyboard, mouse, microphone, switch, button, sensor, etc.) that accepts input from the outside.
  • the output device 1006 is an output device (e.g., a display, speaker, LED lamp, etc.) that outputs to the outside. Note that the input device 1005 and the output device 1006 may be integrated into one device (e.g., a touch panel).
  • each device such as the processor 1001 and the storage device 1002, is connected by a bus 1007 for communicating information.
  • the bus 1007 may be configured using a single bus, or may be configured using different buses between each device.
  • the base station 10 and the terminal 20 may be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), or a field programmable gate array (FPGA), and some or all of the functional blocks may be realized by this hardware.
  • the processor 1001 may be implemented using at least one of these pieces of hardware.
  • FIG. 13 shows an example configuration of vehicle 2001.
  • vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, front wheels 2007, rear wheels 2008, an axle 2009, an electronic control unit 2010, various sensors 2021-2029, an information service unit 2012, and a communication module 2013.
  • a communication device mounted on vehicle 2001 and may be applied to communication module 2013, for example.
  • the drive unit 2002 is composed of, for example, an engine, a motor, or a hybrid of an engine and a motor.
  • the steering unit 2003 includes at least a steering wheel (also called a handle) and is configured to steer at least one of the front wheels and rear wheels based on the operation of the steering wheel operated by the user.
  • the electronic control unit 2010 is composed of a microprocessor 2031, memory (ROM, RAM) 2032, and a communication port (IO port) 2033. Signals are input to the electronic control unit 2010 from various sensors 2021 to 2029 provided on the vehicle 2001.
  • the electronic control unit 2010 may also be called an ECU (Electronic Control Unit).
  • Signals from the various sensors 2021-2029 include a current signal from a current sensor 2021 that senses the motor current, a front or rear wheel rotation speed signal acquired by a rotation speed sensor 2022, a front or rear wheel air pressure signal acquired by an air pressure sensor 2023, a vehicle speed signal acquired by a vehicle speed sensor 2024, an acceleration signal acquired by an acceleration sensor 2025, an accelerator pedal depression amount signal acquired by an accelerator pedal sensor 2029, a brake pedal depression amount signal acquired by a brake pedal sensor 2026, a shift lever operation signal acquired by a shift lever sensor 2027, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. acquired by an object detection sensor 2028.
  • the information service unit 2012 is composed of various devices, such as a car navigation system, audio system, speakers, television, and radio, for providing (outputting) various types of information, such as driving information, traffic information, and entertainment information, as well as one or more ECUs that control these devices.
  • the information service unit 2012 uses information obtained from external devices via the communication module 2013, etc., to provide various types of multimedia information and multimedia services to the occupants of the vehicle 2001.
  • the information service unit 2012 may include input devices that accept input from the outside (e.g., a keyboard, mouse, microphone, switch, button, sensor, touch panel, etc.), and may also include output devices that output to the outside (e.g., a display, speaker, LED lamp, touch panel, etc.).
  • the driving assistance system unit 2030 is composed of various devices that provide functions to prevent accidents and reduce the driver's driving burden, such as millimeter-wave radar, LiDAR (Light Detection and Ranging), cameras, positioning locators (e.g., GNSS, etc.), map information (e.g., high-definition (HD) maps, autonomous vehicle (AV) maps, etc.), gyro systems (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System), etc.), AI (Artificial Intelligence) chips, and AI processors, as well as one or more ECUs that control these devices.
  • the driving assistance system unit 2030 also transmits and receives various information via the communication module 2013 to realize driving assistance functions or autonomous driving functions.
  • the communication module 2013 can communicate with the microprocessor 2031 and components of the vehicle 2001 via the communication port.
  • the communication module 2013 transmits and receives data via the communication port 2033 between the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, front wheels 2007, rear wheels 2008, axle 2009, microprocessor 2031 and memory (ROM, RAM) 2032 in the electronic control unit 2010, and sensors 2021-29, all of which are provided on the vehicle 2001.
  • the communication module 2013 is a communication device that can be controlled by the microprocessor 2031 of the electronic control unit 2010 and can communicate with external devices. For example, it sends and receives various information to and from external devices via wireless communication.
  • the communication module 2013 may be located either inside or outside the electronic control unit 2010.
  • the external device may be, for example, a base station, a mobile station, etc.
  • the communications module 2013 may transmit, via wireless communication, to an external device at least one of the following: signals from the various sensors 2021-2028 input to the electronic control unit 2010; information obtained based on these signals; and information based on input from the outside (user) obtained via the information service unit 2012.
  • the electronic control unit 2010, the various sensors 2021-2028, the information service unit 2012, etc. may also be referred to as input units that accept input.
  • the PUSCH transmitted by the communications module 2013 may include information based on the above input.
  • the communication module 2013 receives various information (traffic information, traffic signal information, vehicle distance information, etc.) transmitted from external devices and displays it on the information service unit 2012 provided in the vehicle 2001.
  • the information service unit 2012 may also be called an output unit that outputs information (for example, outputs information to a device such as a display or speaker based on the PDSCH (or data/information decoded from the PDSCH) received by the communication module 2013).
  • the communication module 2013 also stores the various information received from external devices in memory 2032 that can be used by the microprocessor 2031. Based on the information stored in memory 2032, the microprocessor 2031 may control the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, front wheels 2007, rear wheels 2008, axles 2009, sensors 2021-2029, etc. provided in the vehicle 2001.
  • a receiver for receiving a first message from a first base station, the first message including information indicating an update of system information at the first base station corresponding to a network energy saving function and the updated system information; a transmitter configured to transmit a second message including information indicating an update of the system information of the first base station to a terminal;
  • a base station having (Section 2) The receiver receives a third message from the terminal, the third message including information indicating a request for updated system information of the first base station;
  • the base station according to claim 1, wherein the transmitter transmits a fourth message including updated system information of the first base station to the terminal.
  • (Section 3) The base station according to Supplementary Item 1, wherein the receiving unit receives the first message from the first base station via an Xn interface or an F1 interface.
  • (Section 4) a transmitter for transmitting a first message to a first base station, the first message including information indicating an update of system information at the base station corresponding to a network energy saving function and the updated system information; a receiving unit for receiving a second message from the terminal, the second message including information indicating a request for updated system information;
  • a base station having (Section 5) a receiver for receiving a first message from a second base station, the first message including information indicating an update of system information of the first base station corresponding to a network energy saving function; a control unit that determines, based on the first message, to request updated system information of the first base station; a transmitter configured to transmit a second message to the first base station or the second base station, the second message including information indicating a request for updated system information of the first base station; and The terminal,
  • Any of the above-described embodiments can notify terminals in a wireless network of updates to system information from base stations that support network energy saving functions.
  • the operations of multiple functional units may be performed by a single physical component, or the operations of a single functional unit may be performed by multiple physical components.
  • the order of processing steps described in the embodiments may be reversed as long as there is no contradiction.
  • the base station 10 and terminal 20 have been described using functional block diagrams, but such devices may be implemented in hardware, software, or a combination thereof.
  • the software operated by the processor of the base station 10 in accordance with an embodiment of the present invention and the software operated by the processor of the terminal 20 in accordance with an embodiment of the present invention may each be stored in random access memory (RAM), flash memory, read-only memory (ROM), EPROM, EEPROM, register, hard disk (HDD), removable disk, CD-ROM, database, server, or any other suitable storage medium.
  • the notification of information is not limited to the aspects/embodiments described in the present disclosure, and may be performed using other methods.
  • the notification of information may be performed by physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information)), higher layer signaling (e.g., RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling), broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or a combination of these.
  • RRC signaling may be referred to as an RRC message, and may be, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, etc.
  • Each aspect/embodiment described in this disclosure may be applied to at least one of systems utilizing LTE (Long Term Evolution), LTE-Advanced (LTE-A), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system), FRA (Future Radio Access), NR (New Radio), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth (registered trademark), or other suitable systems, and next generation systems enhanced based on these. Additionally, multiple systems may be combined (for example, a combination of at least one of LTE and LTE-A with 5G).
  • certain operations described as being performed by the base station 10 may also be performed by its upper node in some cases.
  • a network consisting of one or more network nodes having a base station 10 it is clear that various operations performed for communication with the terminal 20 may be performed by at least one of the base station 10 and other network nodes other than the base station 10 (such as, but not limited to, an MME or S-GW). While the above example illustrates a case where there is one other network node other than the base station 10, the other network node may also be a combination of multiple other network nodes (for example, an MME and an S-GW).
  • the information, signals, etc. described in this disclosure may be output from a higher layer (or lower layer) to a lower layer (or higher layer). They may also be input/output via multiple network nodes.
  • Input and output information may be stored in a specific location (for example, memory) or may be managed using a management table. Input and output information may be overwritten, updated, or added to. Output information may be deleted. Input information may be sent to another device.
  • the determination may be made based on a value represented by one bit (0 or 1), a Boolean value (true or false), or a numerical comparison (e.g., comparison with a predetermined value).
  • Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
  • software, instructions, information, etc. may be transmitted and received via a transmission medium.
  • a transmission medium such as coaxial cable, fiber optic cable, twisted pair, or Digital Subscriber Line (DSL)
  • wired technology such as coaxial cable, fiber optic cable, twisted pair, or Digital Subscriber Line (DSL)
  • wireless technology such as infrared or microwave
  • the information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.
  • a channel and a symbol may be a signal (signaling).
  • a signal may be a message.
  • a component carrier CC may be called a carrier frequency, a cell, a frequency carrier, etc.
  • system and “network” are used interchangeably.
  • radio resources may be indicated by an index.
  • the names used for the parameters described above are not intended to be limiting in any way. Furthermore, the mathematical formulas using these parameters may differ from those explicitly disclosed in this disclosure.
  • the various channels (e.g., PUCCH, PDCCH, etc.) and information elements may be identified by any suitable names, and therefore the various names assigned to these various channels and information elements are not intended to be limiting in any way.
  • Base station BS
  • radio base station base station
  • base station device fixed station
  • NodeB nodeB
  • eNodeB eNodeB
  • gNodeB gNodeB
  • base stations may also be referred to by terms such as macrocell, small cell, femtocell, and picocell.
  • a base station can accommodate one or more (e.g., three) cells.
  • a base station accommodates multiple cells, the entire coverage area of the base station can be divided into multiple smaller areas, and each smaller area can also be provided with communication services by a base station subsystem (e.g., a small indoor base station (RRH: Remote Radio Head)).
  • RRH Remote Radio Head
  • the terms "cell” or “sector” refer to part or all of the coverage area of at least one of the base station and base station subsystem that provides communication services within this coverage area.
  • a base station transmitting information to a terminal may be interpreted as the base station instructing the terminal to control or operate based on the information.
  • MS Mobile Station
  • UE User Equipment
  • a mobile station may also be referred to by those skilled in the art as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.
  • At least one of the base station and the mobile station may be referred to as a transmitting device, a receiving device, a communication device, etc.
  • At least one of the base station and the mobile station may be a device mounted on a moving object, the moving object itself, etc.
  • the moving object is a movable object, and may move at any speed. Naturally, this also includes cases where the moving object is stationary.
  • the moving object examples include, but are not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, handcars, rickshaws, ships and other watercraft, airplanes, rockets, satellites, drones (registered trademark), multicopters, quadcopters, balloons, and objects mounted thereon.
  • the moving object may also be a moving object that moves autonomously based on an operation command. It may be a vehicle (e.g., a car, an airplane, etc.), an unmanned moving object (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned).
  • at least one of the base station and the mobile station may be a device that does not necessarily move during communication operations.
  • at least one of the base station and the mobile station may be an IoT (Internet of Things) device such as a sensor.
  • the user terminal in this disclosure may be interpreted as a base station.
  • the base station may be configured to have the functions possessed by the user terminal described above.
  • determining may encompass a wide variety of actions.
  • Determining and “determining” may include, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiring (e.g., searching a table, database, or other data structure), and ascertaining something that is considered to be a “determination.”
  • Determining and “determining” may also include receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, accessing (e.g., accessing data in memory), and so on.
  • judgment and “decision” can include regarding actions such as resolving, selecting, choosing, establishing, and comparing as having been “judgment” or “decision.” In other words, “judgment” and “decision” can include regarding some action as having been “judgment” or “decision.” Furthermore, “judgment (decision)” can be interpreted as “assuming,” “expecting,” “considering,” etc.
  • connection refers to any direct or indirect connection or coupling between two or more elements, and may include the presence of one or more intermediate elements between two elements that are “connected” or “coupled” to each other.
  • the coupling or connection between elements may be physical, logical, or a combination thereof.
  • “connected” may be read as "access.”
  • two elements may be considered to be “connected” or “coupled” to each other using at least one of one or more wires, cables, and printed electrical connections, as well as electromagnetic energy having wavelengths in the radio frequency range, microwave range, and optical (both visible and invisible) range, as some non-limiting and non-exhaustive examples.
  • the reference signal may also be abbreviated as RS (Reference Signal) or may be called a pilot depending on the applicable standard.
  • the phrase “based on” does not mean “based only on,” unless expressly stated otherwise. In other words, the phrase “based on” means both “based only on” and “based at least on.”
  • any reference to an element using a designation such as "first,” “second,” etc. does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, a reference to a first and a second element does not imply that only two elements may be employed or that the first element must in some way precede the second element.
  • a radio frame may be composed of one or more frames in the time domain. Each of the one or more frames in the time domain may be called a subframe. A subframe may further be composed of one or more slots in the time domain. A subframe may have a fixed time length (e.g., 1 ms) that is independent of numerology.
  • Numerology may be a communication parameter that applies to at least one of the transmission and reception of a signal or channel. Numerology may indicate, for example, at least one of the following: subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame structure, specific filtering operations performed by the transmitter/receiver in the frequency domain, and specific windowing operations performed by the transmitter/receiver in the time domain.
  • SCS subcarrier spacing
  • TTI transmission time interval
  • radio frame structure specific filtering operations performed by the transmitter/receiver in the frequency domain
  • specific windowing operations performed by the transmitter/receiver in the time domain specific windowing operations performed by the transmitter/receiver in the time domain.
  • a slot may consist of one or more symbols in the time domain (such as OFDM (Orthogonal Frequency Division Multiplexing) symbols or SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols).
  • a slot may also be a time unit based on numerology.
  • a slot may include multiple minislots. Each minislot may consist of one or more symbols in the time domain. A minislot may also be called a subslot. A minislot may consist of fewer symbols than a slot.
  • a PDSCH (or PUSCH) transmitted in a time unit larger than a minislot may be called PDSCH (or PUSCH) mapping type A.
  • a PDSCH (or PUSCH) transmitted using a minislot may be called PDSCH (or PUSCH) mapping type B.
  • Radio frame, subframe, slot, minislot, and symbol all represent time units for transmitting signals. Other names corresponding to radio frame, subframe, slot, minislot, and symbol may also be used.
  • one subframe may be called a transmission time interval (TTI)
  • TTI transmission time interval
  • multiple consecutive subframes may be called a TTI
  • one slot or one minislot may be called a TTI.
  • at least one of the subframe and the TTI may be a subframe (1 ms) as in existing LTE, or a period shorter than 1 ms (e.g., 1-13 symbols), or a period longer than 1 ms.
  • the unit representing the TTI may be called a slot, minislot, etc. instead of a subframe.
  • TTI refers to, for example, the smallest time unit for scheduling in wireless communication.
  • a base station performs scheduling to allocate wireless resources (such as frequency bandwidth and transmission power that can be used by each terminal 20) to each terminal 20 in TTI units.
  • wireless resources such as frequency bandwidth and transmission power that can be used by each terminal 20
  • TTI is not limited to this.
  • the TTI may be a transmission time unit for a channel-encoded data packet (transport block), code block, code word, etc., or may be a processing unit for scheduling, link adaptation, etc.
  • the time interval e.g., number of symbols
  • the time interval to which a transport block, code block, code word, etc. is actually mapped may be shorter than the TTI.
  • one slot or one minislot is called a TTI
  • one or more TTIs may be the smallest time unit for scheduling.
  • the number of slots (minislots) that make up the smallest time unit for scheduling may be controlled.
  • a TTI with a time length of 1 ms may be called a regular TTI (TTI in LTE Rel. 8-12), normal TTI, long TTI, regular subframe, normal subframe, long subframe, slot, etc.
  • a TTI shorter than a regular TTI may be called a shortened TTI, short TTI, partial TTI (partial or fractional TTI), shortened subframe, short subframe, minislot, subslot, slot, etc.
  • a long TTI (e.g., a normal TTI, subframe, etc.) may be interpreted as a TTI having a time length of more than 1 ms
  • a short TTI e.g., a shortened TTI, etc.
  • a resource block is a resource allocation unit in the time domain and frequency domain, and may include one or more consecutive subcarriers in the frequency domain.
  • the number of subcarriers included in an RB may be the same regardless of numerology, and may be, for example, 12.
  • the number of subcarriers included in an RB may also be determined based on numerology.
  • the time domain of an RB may include one or more symbols and may be one slot, one minislot, one subframe, or one TTI in length.
  • One TTI, one subframe, etc. may each be composed of one or more resource blocks.
  • one or more RBs may also be referred to as a physical resource block (PRB), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, etc.
  • PRB physical resource block
  • SCG sub-carrier group
  • REG resource element group
  • PRB pair an RB pair, etc.
  • a resource block may be composed of one or more resource elements (REs).
  • REs resource elements
  • one RE may be a radio resource region of one subcarrier and one symbol.
  • a bandwidth part (which may also be referred to as a partial bandwidth) may represent a subset of contiguous common resource blocks (RBs) for a given numerology on a given carrier.
  • the common RBs may be identified by the index of the RB relative to the common reference point of the carrier.
  • PRBs may be defined in a BWP and numbered within that BWP.
  • BWPs may include a BWP for the UL (UL BWP) and a BWP for the DL (DL BWP).
  • One or more BWPs may be configured for a UE within one carrier.
  • At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal/channel outside the active BWP.
  • BWP bitmap
  • the structures of the radio frames, subframes, slots, minislots, and symbols described above are merely examples.
  • the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of subcarriers included in an RB, as well as the number of symbols in a TTI, symbol length, and cyclic prefix (CP) length can be changed in various ways.
  • a and B are different may mean “A and B are different from each other.” Note that this term may also mean “A and B are each different from C.” Terms such as “separate” and “combined” may also be interpreted in the same way as “different.”
  • notification of specified information is not limited to being done explicitly, but may also be done implicitly (e.g., not notifying the specified information).
  • Base station 110 Transmitter 120 Receiver 130 Setting unit 140 Control unit 20 Terminal 210 Transmitter 220 Receiver 230 Setting unit 240 Control unit 1001 Processor 1002 Storage device 1003 Auxiliary storage device 1004 Communication device 1005 Input device 1006 Output device 2001 Vehicle 2002 Drive unit 2003 Steering unit 2004 Accelerator pedal 2005 Brake pedal 2006 Shift lever 2007 Front wheels 2008 Rear wheels 2009 Axle 2010 Electronic control unit 2012 Information service unit 2013 Communication module 2021 Current sensor 2022 Rotation speed sensor 2023 Air pressure sensor 2024 Vehicle speed sensor 2025 Acceleration sensor 2026 Brake pedal sensor 2027 Shift lever sensor 2028 Object detection sensor 2029 Accelerator pedal sensor 2030: Driving assistance system unit 2031: Microprocessor 2032: Memory (ROM, RAM) 2033 Communication port (IO port)

Landscapes

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

Abstract

Cette station de base comprend : une unité de réception qui reçoit, en provenance d'une première station de base correspondant à la fonction d'économie d'énergie de réseau, un premier message qui contient des informations indiquant une mise à jour d'informations de système dans la première station de base et les informations système mises à jour ; et une unité de transmission qui transmet, à un terminal, un second message qui contient les informations indiquant la mise à jour des informations de système dans la première station de base.
PCT/JP2025/014352 2024-05-21 2025-04-10 Station de base, terminal et procédé de communication Pending WO2025243721A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2024082438 2024-05-21
JP2024-082438 2024-05-21

Publications (1)

Publication Number Publication Date
WO2025243721A1 true WO2025243721A1 (fr) 2025-11-27

Family

ID=97795108

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2025/014352 Pending WO2025243721A1 (fr) 2024-05-21 2025-04-10 Station de base, terminal et procédé de communication

Country Status (1)

Country Link
WO (1) WO2025243721A1 (fr)

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HAOCHENG WANG, CATT: "Consideration on on-demand SIB1", 3GPP DRAFT; R2-2402659; TYPE DISCUSSION; NETW_ENERGY_NR_ENH-CORE, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. Changsha, Hunan Province, CN; 20240415 - 20240419, 5 April 2024 (2024-04-05), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP052584622 *
SHINYA KUMAGAI, NTT DOCOMO, INC.: "Discussion on on-demand SIB1 for idle/inactive mode UEs", 3GPP DRAFT; R1-2405049; TYPE DISCUSSION; NETW_ENERGY_NR_ENH-CORE, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Fukuoka City, Fukuoka, JP; 20240520 - 20240524, 10 May 2024 (2024-05-10), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP052609331 *

Similar Documents

Publication Publication Date Title
JP7822467B2 (ja) 端末及び通信方法
WO2025243721A1 (fr) Station de base, terminal et procédé de communication
WO2025243699A1 (fr) Station de base, terminal et procédé de communication
WO2025243762A1 (fr) Station de base, terminal et procédé de communication
WO2025243805A1 (fr) Terminal, station de base et procédé de communication
WO2025243722A1 (fr) Terminal, station de base et procédé de communication
WO2025234097A1 (fr) Terminal, station de base et procédé de communication
WO2026042588A1 (fr) Terminal et station de base
WO2025210871A1 (fr) Équipement utilisateur et procédé de communication
WO2025032835A1 (fr) Terminal et procédé de communication
WO2025032836A1 (fr) Terminal et procédé de communication
WO2025210858A1 (fr) Terminal, station de base, et procédé de communication
WO2026033771A1 (fr) Terminal, station de base et procédé de communication
WO2026023083A1 (fr) Terminal et procédé de communication
JP2025157078A (ja) 基地局及び端末
WO2024100905A1 (fr) Terminal, station de base et procédé de communication
WO2025203277A1 (fr) Terminal et procédé de communication
JP2025155601A (ja) 端末、基地局及び通信方法
JP2025157178A (ja) 基地局
WO2025183048A1 (fr) Terminal et procédé de communication
WO2026028394A1 (fr) Terminal, station de base et procédé de communication
WO2025210857A1 (fr) Terminal, station de base et procédé de communication
WO2025210928A1 (fr) Terminal, station de base et procédé de communication
JP2025155707A (ja) 端末、基地局及び通信方法
JP2025155978A (ja) 端末、基地局、及び通信方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 25807455

Country of ref document: EP

Kind code of ref document: A1