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WO2025203617A1 - Terminal - Google Patents

Terminal

Info

Publication number
WO2025203617A1
WO2025203617A1 PCT/JP2024/013209 JP2024013209W WO2025203617A1 WO 2025203617 A1 WO2025203617 A1 WO 2025203617A1 JP 2024013209 W JP2024013209 W JP 2024013209W WO 2025203617 A1 WO2025203617 A1 WO 2025203617A1
Authority
WO
WIPO (PCT)
Prior art keywords
node
base station
radio
unit
radio base
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/JP2024/013209
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
Priority to PCT/JP2024/013209 priority Critical patent/WO2025203617A1/fr
Publication of WO2025203617A1 publication Critical patent/WO2025203617A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • 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
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H04W76/16—Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer
    • 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 3rd Generation Partnership Project (3GPP (registered trademark)) is developing specifications for the 5th generation mobile communication system (5G, also known as New Radio (NR) or Next Generation (NG)), and is also developing specifications for the next generation of mobile communication systems, known as Beyond 5G, 5G Evolution, or 6G.
  • 5G also known as New Radio (NR) or Next Generation (NG)
  • NG Next Generation
  • DRX discontinuous reception
  • One aspect of the disclosure is a terminal comprising a control unit (control unit 270) that simultaneously connects to a first wireless base station and a second wireless base station, a receiving unit (radio signal transmitting/receiving unit 210) that receives from the first wireless base station a first setting related to discontinuous reception of data transmitted by the first wireless base station, and a transmitting unit (radio signal transmitting/receiving unit 210) that transmits the first setting to the second wireless base station.
  • control unit control unit 270
  • receiving unit radio signal transmitting/receiving unit 210) that receives from the first wireless base station a first setting related to discontinuous reception of data transmitted by the first wireless base station
  • a transmitting unit radio signal transmitting/receiving unit 210 that transmits the first setting to the second wireless base station.
  • the wireless communication system 10 shown in FIG. 1 is a wireless communication system conforming to a method called 5G.
  • the wireless communication system 10 may be a wireless communication system conforming to a method called Beyond 5G, 5G Evolution, or 6G.
  • the wireless communication system 10 may be expressed as a Radio Access Technology (RAT).
  • RAT Radio Access Technology
  • the wireless communication system 10 conforming to 5G may be expressed as a 5G RAT
  • the wireless communication system 10 conforming to 6G may be expressed as a 6G RAT.
  • RAN20 may be, for example, 5G RAN 20A conforming to 5G, as shown in Figure 6, or 6G RAN 20B conforming to 6G.
  • gNB100 is not limited to referring to a base station constituting 5G RAN 20A, but may also refer to a base station constituting 6G RAN 20B.
  • the former may be expressed as 5G RAN node100A or 5G node 100A
  • the latter may be expressed as 6G RAN node100B or 6G node 100B.
  • the wireless communication system 10 may also support multiple frequency ranges (FR), i.e., the following FRs as shown in FIG. ⁇ FR1: 410MHz to 7.125GHz ⁇ FR2-1: 24.25GHz to 52.6GHz ⁇ FR2-2: 52.6GHz to 71GHz ⁇ FR3: 7.125GHz to 24.25GHz
  • FR frequency ranges
  • Cyclic Prefix-Orthogonal Frequency Division Multiplexing CP-OFDM
  • DFT-S-OFDM Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing
  • FR3 is a frequency band that fills the gap between FR1 and FR2-1, and may be called by a different name as long as it refers to the same frequency band.
  • the BW and SCS for FR3 may be the same as those for FR1 or FR2-1, or different ones may be applied.
  • the UE 200 includes a wireless signal transmitting/receiving unit 210, an amplifier unit 220, a modulation/demodulation unit 230, a control signal/reference signal processing unit 240, an encoding/decoding unit 250, a data transmitting/receiving unit 260, and a control unit 270.
  • the radio signal transceiver 210 of the embodiment can receive, from the first radio base station, a configuration of a first measurement gap, which is a period during which communication with the serving cell of the first radio base station is suspended in order to perform measurements of neighboring cells. Furthermore, the radio signal transceiver 210 can transmit a configuration of the first measurement gap to the second radio base station.
  • the first radio base station may be the 5G node 100A.
  • the second radio base station may be the 6G node 100B.
  • the neighboring cell may be a neighboring cell of the serving cell of the 5G node 100A.
  • the first measurement gap may be interpreted as a period during which communication with the serving cell of the 5G node 100A is suspended in order to measure neighboring cells of the serving cell of the 5G node 100A.
  • the measurement gap may be understood to be a period during which the UE 200 stops communicating with the serving cell in order to perform measurements on neighboring cells.
  • MG settings may include, for example, the MG length (MGL), MG repetition period (MGRP), and MG timing advance.
  • the MG may also be configured to match the period and window width of the SSB-based RRM Measurement Timing Configuration window (SMTC window) for measuring synchronization signals (SSB).
  • SMTC window Measurement Timing Configuration window
  • the radio signal transceiver unit 210 suspends communication not only with the serving cell of the first radio base station, but also with the serving cell of the second radio base station.
  • the radio signal transmission/reception unit 210 suspends communication not only with the serving cell of the first radio base station operating in FR2, but also with the serving cell of the second radio base station operating in FR2. On the other hand, in this case, the radio signal transmission/reception unit 210 does not suspend communication with the serving cell of the first radio base station operating in FR1 or communication with the serving cell of the second radio base station operating in FR1/FR3.
  • the radio signal transmission/reception unit 210 can receive, from the first radio base station, the number of serving cells that the first radio base station sets for the UE 200. Furthermore, it can transmit this number of serving cells to the second radio base station. The radio signal transmission/reception unit 210 can also request the first radio base station to increase or decrease the number of serving cells. In other words, the radio signal transmission/reception unit 210 can transmit a request to the first radio base station to change the number of serving cells.
  • the modem unit 230 performs data modulation/demodulation, transmission power setting, resource block allocation, etc. for each specified communication destination (gNB100 or another gNB100).
  • CP-OFDM/DFT-S-OFDM may be applied to the modem unit 230.
  • DFT-S-OFDM may be used not only for the uplink (UL) but also for the downlink (DL).
  • the control signal/reference signal processing unit 240 performs processing related to reference signals transmitted and received between the gNB 100, such as Demodulation Reference Signal (DMRS), Phase Tracking Reference Signal (PTRS), Channel State Information-Reference Signal (CSI-RS), Sounding Reference Signal (SRS), and Positioning Reference Signal (PRS).
  • DMRS Demodulation Reference Signal
  • PTRS Phase Tracking Reference Signal
  • CSI-RS Channel State Information-Reference Signal
  • SRS Sounding Reference Signal
  • PRS Positioning Reference Signal
  • the control unit 270 controls the UE 200.
  • the control unit 270 controls the transmission and reception of radio signals by the radio signal transmission and reception unit 210, the amplification by the amplifier unit 220, the data modulation/demodulation by the modem unit 230, the signal processing by the control signal and reference signal processing unit 240, the coding/decoding by the encoding/decoding unit 250, and the assembly/disassembly of data units by the data transmission and reception unit 260.
  • the control unit 270 in this embodiment can determine the start time of the DRX described above.
  • the gNB100 includes a radio signal transceiver unit 110 and a control unit 120.
  • the wireless signal transceiver 110 of this embodiment can receive information transmitted by the wireless signal transceiver 210 described above.
  • the wireless signal transceiver 110 can also transmit information received by the wireless signal transceiver 210 described above.
  • Figures 6 and 7 show 5G RAN20A and 6G RAN20B in which UE200 executes DC, and CN30 (5GC30A and 6GC30B) connected to each RAN.
  • Figure 6 shows an example in which an interface (IF) capable of communicating information such as settings for UE200 is provided between 5G RAN20A and 6G RAN20B.
  • Figure 7 shows an example in which an IF like that in Figure 6 is not provided between 5G RAN20A and 6G RAN20B, and instead 5GC30A and 6GC30B are connected.
  • the CN30 may be only one of 5GC30A or 6GC30B.
  • Figure 8 shows an example of a protocol stack for UE200 in Figure 7 that executes DC for 5G RAN20A and 6G RAN20B.
  • UE200 can be equipped with separate protocol stacks for 5G RAN and 6G RAN. Such protocol stacks are called dual stacks.
  • a UE200 that supports dual stacks can cancel DC and communicate only with, for example, 5G RAN20A by transitioning from dual stack mode to single stack mode.
  • the protocol stack may include, for example, a physical (PHY) layer, a medium access control (MAC) layer, a radio link control (RLC) layer, a packet data convergence protocol (PDCP) layer, and a radio resource control (RRC) layer.
  • PHY physical
  • MAC medium access control
  • RLC radio link control
  • PDCP packet data convergence protocol
  • RRC radio resource control
  • the protocol stack may include a non-access layer (NAS) that enables connection to a core network (CN).
  • CN core network
  • UE200 When UE200 is equipped with a NAS as shown in FIG. 8, it can make a registration request to at least one of 5GC30A or 6GC30B. UE200 may be registered with only one of 5GC30A or 6GC30B, or may be registered with both 5GC30A and 6GC30B. The latter registration may be called dual registration.
  • the problems of the embodiment relate to a UE 200 that simultaneously connects to multiple RATs, specifically, multiple base stations.
  • scheduling may fail due to an unrecognized MG.
  • the number of measurement identifiers associated with inter-frequency measurements may be configured to exceed the configurable upper limit for a UE, causing the UE to fail inter-frequency measurements.
  • the number of serving cells may be configured to exceed the configurable upper limit for a UE, causing overheating.
  • Various settings are configured for a UE by base stations constituting a 5G RAN (hereinafter also referred to as 5G nodes) and base stations constituting a 6G RAN (hereinafter also referred to as 6G nodes). These settings include, for example, the maximum number of configurable serving cells, the maximum bandwidth of carrier aggregation (CA), and the maximum number of MIMO layers. The load of these various settings could exceed the processing capacity of the UE, causing the UE to malfunction. Similar problems could also occur when the UE's battery is low, for example, by the UE switching to a power-saving mode.
  • the UE 200 in operation example 1-1 can notify the 6G node 100B of the MG configuration received from the 5G node 100A, and can also notify the 5G node 100A of the MG configuration received from the 6G node 100B.
  • the MG configuration may be a per UE measurement gap config indicating an MG configuration in which the UE 200 suspends communication in any frequency band (FR), or an FR1/FR2/FR3 measurement gap config indicating an MG in which the UE 200 suspends communication for each FR.
  • the FR1 measurement gap config indicates an MG configuration in which the UE 200 suspends communication using FR1.
  • the UE 200 in operation example 1-2 can notify the 6G node 100B of the inter-freq measurement configuration received from the 5G node 100A, and can also notify the 5G node 100A of the inter-freq measurement configuration received from the 6G node 100B.
  • the inter-freq measurement configuration may be the number of inter-freq measurements performed by the UE 200, specifically, the number of measurement identities configured by the 5G node 100A (or the 6G node 100B) for the UE 200 to perform frequency measurements.
  • the measurement identities may be associated with measurement objects.
  • the UE 200 may notify the 5G node 100A (or the 6G node 100B) of a reconfiguration failure.
  • the cause of the reconfiguration failure may indicate that the maximum number of measurement identifiers has been exceeded.
  • the UE 200 in operation example 1-2 can notify the 6G node 100B of the inter-frequency measurement configuration received from the 5G node 100A, and can also notify the 5G node 100A of the inter-frequency measurement configuration received from the 6G node 100B. This allows the 5G node 100A and the 6G node 100B to configure inter-frequency measurements after recognizing the inter-frequency measurement configuration set by the other RAN.
  • the UE 200 in operation example 1-3 can notify the 6G node 100B of the setting of the number of serving cells received from the 5G node 100A, and can also notify the 5G node 100A of the setting of the number of serving cells received from the 6G node 100B.
  • the setting of the number of serving cells may be per frequency.
  • the setting of the number of serving cells may include, for example, the number of serving cells for FR1, the number of serving cells for FR2, and the number of serving cells for FR3.
  • the UE 200 can notify the 6G node 100B of the frequency list measured in the 5G RAN 20A, and can also notify the 5G node 100A of the frequency list measured in the 6G RAN 20B.
  • the UE 200 may also request the 5G node 100A (or the 6G node 100B) the number of serving cells to be set by the 5G node 100A (or the 6G node 100B). This request may specify a specific number, or may request an increase or decrease in the number of serving cells currently set.
  • the requested number of serving cells may also be per frequency, as described above.
  • the requested number of serving cells may include, for example, the number of serving cells for FR1, the number of serving cells for FR2, and the number of serving cells for FR3.
  • the maximum number of serving cells in FR1 the maximum number of serving cells in FR2, and the maximum number of serving cells in FR3 that can be configured by the 5G node 100A
  • the maximum number of serving cells in FR1 the maximum number of serving cells in FR2, and the maximum number of serving cells in FR3 that can be configured by the 6G node 100B.
  • UE 200 in operation example 2 can notify 6G node 100B of the 5G DRX config, and can also notify 5G node 100A of the 6G DRX config. This allows the 5G node 100A and 6G node 100B to share the same DRX settings, thereby reducing the power consumption of UE 200 related to DRX.
  • Operation example 3 will be described with reference to Fig. 13.
  • UE 200 which is simultaneously connected to the 5G node 100A and the 6G node 100B, reports to the 5G node 100A and the 6G node 100B that the processing capacity has been exceeded due to excessive settings, i.e., that the UE is overheating.
  • the UE 200 may notify the 6G node 100B of the following: The number of DL/UL PCells or SCells configured by the 5G node 100A The size of the aggregated bandwidth across all DL/UL carriers configured by the 5G node 100A for each frequency band (FR1/FR2/FR3) The number of DL/UL MIMO layers of the serving cell operating in each frequency band configured by the 5G node 100A for each frequency band (FR1/FR2/FR3)
  • UE200 may notify 5G node 100A of the following: The number of DL/UL PCells or SCells configured by the 6G node 100B. The size of the aggregated bandwidth across all DL/UL carriers configured by the 6G node 100B for each frequency band (FR1/FR2/FR3). The number of DL/UL MIMO layers of the serving cell operating in each frequency band configured by the 6G node 100B for each frequency band (FR1/FR2/FR3).
  • UE200 may determine allowedReducedConfigForOverheating for each of the 5G node 100A and the 6G node 100B and notify the determined allowedReducedConfigForOverheating.
  • the allowedReducedConfigForOverheating determined and notified to the 5G node 100A may include the following content: ⁇ the maximum number of downlink/uplink PCell/SCells that the 5G RAN node is allowed to configure ⁇ the maximum aggregated bandwidth across all downlink/uplink carriers of FR1, FR2, FR3, respectively that the 5G RAN node is allowed to configure ⁇ the maximum number of downlink/uplink MIMO layers of each serving cell operating on FR1, FR2, FR3 respectively that the 5G RAN node is allowed to configure
  • the allowedReducedConfigForOverheating determined and notified to the 6G node 100B may include the following content: ⁇ the maximum number of downlink/uplink PCell/SCells that the 6G RAN node is allowed to configure ⁇ the maximum aggregated bandwidth across all downlink/uplink carriers of FR1, FR2, FR3, respectively that the 6G RAN node is allowed to configure ⁇ the maximum number of downlink/uplink MIMO layers of each serving cell operating on FR1, FR2, FR3 respectively that the 6G RAN node is allowed to configure
  • the node with which UE200 prioritizes communication may be determined based on a predetermined priority.
  • the priority may be to prioritize communication with a base station included in a RAT with wide coverage or a base station that communicates using a relatively low frequency (e.g., 5G node 100A).
  • the priority may also be to place communication with a base station included in a RAT with narrow coverage or a base station that communicates using a relatively high frequency (e.g., 6G node 100B) in an IDLE state or a deactivated state.
  • the priority may be determined by Operations, Administration and Maintenance (OAM) or CN30 (not shown) and set to 5G RAN20A and 6G RAN20B.
  • OAM Operations, Administration and Maintenance
  • CN30 not shown
  • a cooperative node 500 applicable to the above-described operation example will be described with reference to Figs. 14 to 16.
  • the cooperative node 500 is provided to exchange information mainly to be set in the UE 200 between the 5G node 100A and the 6G node 100B.
  • the cooperative node 500 may be provided in the OAM, or may be provided in the CN 30 (e.g., 6GC 30B) as shown in Fig. 15. In this case, the cooperative node 500 may be called a mobility manager 500.
  • the first radio base station is the 5G node 100A and the second radio base station is the 6G node 100B, but the first radio base station may be the 6G node 100B and the second radio base station may be the 5G node 100A.
  • the above-described embodiment may be applied by replacing the 5G node 100A and the 6G node 100B with each other.
  • 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 100, terminal 200, 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 19 is a diagram showing an example of the hardware configuration of the base station 100 and terminal 200 in one embodiment of the present disclosure.
  • the above-mentioned base station 100 and terminal 200 may be physically configured as a computer device including a processor 1001, memory 1002, storage 1003, communication device 1004, input device 1005, output device 1006, bus 1007, etc.
  • the term "apparatus” can be interpreted as circuit, device, unit, etc.
  • the hardware configuration of the base station 100 and terminal 200 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 100 and terminal 200 are realized by loading specific software (programs) onto hardware such as the processor 1001 and memory 1002, causing the processor 1001 to perform calculations, control communications by the communication device 1004, and control at least one of reading and writing data from and to the memory 1002 and storage 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
  • the processor 1001 reads programs (program code), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 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-mentioned embodiments.
  • the above-mentioned various processes 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 by one or more chips.
  • the programs may also be transmitted from a network via telecommunications lines.
  • Memory 1002 is a computer-readable recording medium and may be composed of, for example, at least one of Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), Random Access Memory (RAM), etc.
  • Memory 1002 may also be called a register, cache, main memory (primary storage device), etc.
  • Memory 1002 can store executable programs (program code), software modules, etc. for implementing a wireless communication method according to one embodiment of the present disclosure.
  • Storage 1003 is a computer-readable recording medium, and may be composed of at least one of, for example, an optical disk such as a Compact Disc ROM (CD-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) disc), a smart card, a flash memory (e.g., a card, a stick, a key drive), a floppy (registered trademark) disk, a magnetic strip, etc.
  • Storage 1003 may also be referred to as an auxiliary storage device.
  • the above-mentioned storage medium may be, for example, a database, a server, or other suitable medium including at least one of memory 1002 and storage 1003.
  • the communication device 1004 is hardware (transmission/reception device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, network controller, network card, or communication module.
  • the communication device 1004 may be configured to include a high-frequency switch, duplexer, filter, frequency synthesizer, etc. to realize at least one of frequency division duplex (FDD) and time division duplex (TDD).
  • FDD frequency division duplex
  • TDD time division duplex
  • 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 memory 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 100 and the terminal 200 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.
  • the notification of information is not limited to the aspects/embodiments described in this disclosure and may be performed using other methods.
  • the notification of information may be performed by physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling), broadcast information (Master Information Block (MIB), System Information Block (SIB)), 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.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • SUPER 3G IMT-Advanced
  • 4th generation mobile communication system 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • 6G 6th generation mobile communication system
  • xG xth generation mobile communication system
  • Future Radio Acc The specification may apply to at least one of systems using 802.11 (Wi-Fi), 802.16 (WiMAX), 802.20, Ultra-WideBand (UWB), Bluetooth, or other appropriate systems, and next-generation systems that are extended, modified, created, or defined based on these. It may also apply to a combination of multiple systems (for example, a combination of LTE and/or LTE-A with 5G).
  • certain operations that are described as being performed by a base station may in some cases be performed by its upper node.
  • various operations performed for communication with terminals may be performed by at least one of the base station and other network nodes other than the base station (such as, but not limited to, an MME or S-GW). While the above example shows a case where there is one other network node other than the base station, it may also be a combination of multiple other network nodes (for example, an MME and an S-GW).
  • Information, signals can be output from a higher layer (or lower layer) to a lower layer (or higher layer). They may also be input and output via multiple network nodes.
  • 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 (for example, 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 also 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.
  • system and “network” are used interchangeably.
  • Base station BS
  • radio base station 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 (also called sectors). When 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 provide communication services by a base station subsystem (e.g., a small indoor base station (Remote Radio Head, RRH)).
  • a base station subsystem e.g., a small indoor base station (Remote Radio Head, RRH)
  • RRH Remote Radio Head
  • 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.
  • 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 Internet of Things (IoT) device such as a sensor.
  • IoT Internet of Things
  • terminal in this disclosure may be interpreted as “base station.”
  • the base station 100 may be configured to have the functions possessed by the terminal 200 described above.
  • FIG. 20 shows an example configuration of a vehicle 2001.
  • the vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, left and right front wheels 2007, left and right 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.
  • the drive unit 2002 may be 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.
  • a steering wheel also called a handle
  • Signals from the various sensors 2021-2029 include a current signal from a current sensor 2021 that senses the motor current, a front and rear wheel rotation speed signal obtained by a rotation speed sensor 2022, a front and rear wheel air pressure signal obtained by an air pressure sensor 2023, a vehicle speed signal obtained by a vehicle speed sensor 2024, an acceleration signal obtained by an acceleration sensor 2025, an accelerator pedal depression amount signal obtained by an accelerator pedal sensor 2029, a brake pedal depression amount signal obtained by a brake pedal sensor 2026, a shift lever operation signal obtained by a shift lever sensor 2027, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by an object detection sensor 2028.
  • the information service unit 2012 may include input devices (e.g., keyboards, mice, microphones, switches, buttons, sensors, touch panels, etc.) that accept input from the outside, and may also include output devices (e.g., displays, speakers, LED lamps, touch panels, etc.) that output to the outside.
  • input devices e.g., keyboards, mice, microphones, switches, buttons, sensors, touch panels, etc.
  • output devices e.g., displays, speakers, LED lamps, touch panels, 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, Light Detection and Ranging (LiDAR), cameras, positioning locators (e.g., GNSS, etc.), map information (e.g., high-definition (HD) maps, autonomous vehicle (AV) maps, etc.), gyro systems (e.g., inertial measurement units (IMUs), inertial navigation systems (INSs), etc.), artificial intelligence (AI) 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 to and from the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, axles 2009, microprocessor 2031 and memory (ROM, RAM) 2032 in the electronic control unit 2010, and sensors 2021-2029, all of which are provided on the vehicle 2001.
  • 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.
  • 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 received by the communication module 2013 (or data/information decoded from the PDSCH)).
  • the communication module 2013 stores 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, left and right front wheels 2007, left and right rear wheels 2008, axle 2009, sensors 2021-2029, and the like provided on the vehicle 2001.
  • determining may encompass a wide variety of actions.
  • 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, all of which are considered to be “judging” or “determining.”
  • Determining may also include receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, and accessing (e.g., accessing data in memory), all of which are considered to be “judging” or “determining.”
  • Determining may also include resolving, selecting, choosing, establishing, comparing, and other actions, all of which are considered to be “judging” or “determining.”
  • judgment and “decision” can include regarding some action as having been “judged” or “decided.”
  • judgment (decision)” can also be interpreted as “assuming,” “expec
  • 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, or may be called a pilot depending on the applicable standard.
  • 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 and receiver in the frequency domain, and specific windowing operations performed by the transmitter and receiver in the time domain.
  • SCS subcarrier spacing
  • TTI transmission time interval
  • radio frame structure specific filtering operations performed by the transmitter and receiver in the frequency domain
  • specific windowing operations performed by the transmitter and receiver in the time domain specific windowing operations performed by the transmitter and receiver in the time domain.
  • 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.
  • TTI refers to, for example, the smallest time unit for scheduling in wireless communication.
  • a base station performs scheduling to allocate radio resources (such as the frequency bandwidth and transmission power that can be used by each terminal) to each terminal in TTI units.
  • radio resources such as the frequency bandwidth and transmission power that can be used by each terminal
  • 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 it may be a processing unit for scheduling, link adaptation, etc.
  • the time interval e.g., number of symbols
  • the 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 referred to as a regular TTI (TTI in LTE Rel. 8 to 12), normal TTI, long TTI, regular subframe, normal subframe, long subframe, slot, etc.
  • a TTI shorter than a regular TTI may be referred to as 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), sub-carrier group (SCG), resource element group (REG), PRB pair, RB pair, etc.
  • PRB physical resource block
  • SCG sub-carrier group
  • REG resource element group
  • PRB pair RB pair, etc.
  • a resource block may be composed of one or more resource elements (REs).
  • RE resource elements
  • one RE may be a radio resource region of one subcarrier and one symbol.
  • a Bandwidth Part (BWP) (which may also be referred to as a fractional bandwidth) may represent a subset of contiguous common resource blocks (RBs) for a given numerology on a given carrier, where the common RBs may be identified by their index relative to a common reference point of the carrier.
  • BWP Bandwidth Part
  • PRBs may be defined in a given BWP and numbered within that BWP.
  • BWPs may include a BWP for UL (UL BWP) and a BWP for DL (DL BWP).
  • UL BWP UL BWP
  • DL BWP 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 specific signal/channel outside of the active BWP.
  • BWP bit stream
  • 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 within a TTI, the symbol length, and the cyclic prefix (CP) length can be changed in various ways.

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

Abstract

L'invention concerne un terminal comprenant : une unité de commande qui effectue des connexions simultanées à une première station de base sans fil et à une seconde station de base sans fil ; une unité de réception qui reçoit, en provenance de la première station de base sans fil, une première configuration relative à la réception intermittente de données transmises par la première station de base sans fil ; et une unité de transmission qui transmet la première configuration à la seconde station de base sans fil.
PCT/JP2024/013209 2024-03-29 2024-03-29 Terminal Pending WO2025203617A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2024/013209 WO2025203617A1 (fr) 2024-03-29 2024-03-29 Terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2024/013209 WO2025203617A1 (fr) 2024-03-29 2024-03-29 Terminal

Publications (1)

Publication Number Publication Date
WO2025203617A1 true WO2025203617A1 (fr) 2025-10-02

Family

ID=97215686

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2024/013209 Pending WO2025203617A1 (fr) 2024-03-29 2024-03-29 Terminal

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WO (1) WO2025203617A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016213518A (ja) * 2013-10-04 2016-12-15 シャープ株式会社 無線通信システム、基地局装置、端末装置、無線通信方法および集積回路
JP2021141561A (ja) * 2020-03-09 2021-09-16 ペキン シャオミ モバイル ソフトウェア カンパニー, リミテッドBeijing Xiaomi Mobile Software Co., Ltd. デュアルｓｉｍ携帯電話のページング衝突を対処する方法、装置及び媒体

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016213518A (ja) * 2013-10-04 2016-12-15 シャープ株式会社 無線通信システム、基地局装置、端末装置、無線通信方法および集積回路
JP2021141561A (ja) * 2020-03-09 2021-09-16 ペキン シャオミ モバイル ソフトウェア カンパニー, リミテッドBeijing Xiaomi Mobile Software Co., Ltd. デュアルｓｉｍ携帯電話のページング衝突を対処する方法、装置及び媒体

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