WO2023067783A1 - Terminal, station de base, et procédé de communication - Google Patents

Terminal, station de base, et procédé de communication Download PDF

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Publication number
WO2023067783A1
WO2023067783A1 PCT/JP2021/039023 JP2021039023W WO2023067783A1 WO 2023067783 A1 WO2023067783 A1 WO 2023067783A1 JP 2021039023 W JP2021039023 W JP 2021039023W WO 2023067783 A1 WO2023067783 A1 WO 2023067783A1
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WIPO (PCT)
Prior art keywords
base station
terminal
frequency
unit
range
Prior art date
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PCT/JP2021/039023
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English (en)
Japanese (ja)
Inventor
優太 小熊
竜 北川
Original Assignee
株式会社Ｎｔｔドコモ
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.)
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Application filed by 株式会社Ｎｔｔドコモ filed Critical 株式会社Ｎｔｔドコモ
Priority to JP2023554196A priority Critical patent/JPWO2023067783A1/ja
Priority to PCT/JP2021/039023 priority patent/WO2023067783A1/fr
Publication of WO2023067783A1 publication Critical patent/WO2023067783A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • 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 terminals, base stations and communication methods in wireless communication systems.
  • NR New Radio
  • LTE Long Term Evolution
  • Non-Patent Document 2 is considering using a higher frequency band than previous releases (eg, Non-Patent Document 2).
  • a higher frequency band eg., Non-Patent Document 2.
  • applicable numerology including subcarrier spacing, channel bandwidth, etc., physical layer design, possible obstacles in actual wireless communication, etc. are being studied.
  • CA carrier aggregation
  • FR2 high frequency band
  • the present invention has been made in view of the above points, and aims at facilitating implementation of a terminal that supports inter-band CA with a long frequency distance between component carriers.
  • a transmitting unit that transmits capability information including the frequency distance range between component carriers in interband CA (Carrier Aggregation) to a base station, and a signal to which interband CA is applied from the base station. If the frequency distance between the receiving unit that receives the signal and the component carriers that compose the signal exceeds the range of the frequency distance included in the capability information, the requirements for the reception sensitivity of the receiving unit are relaxed.
  • a terminal is provided comprising an envisioned control unit.
  • a technique that makes it possible to easily implement a terminal that supports interband CA with a long frequency distance between component carriers.
  • FIG. 1 is a diagram for explaining a radio communication system according to an embodiment of the present invention
  • FIG. It is a figure for demonstrating the system of interband CA which concerns on embodiment of this invention. It is a figure which shows the example of a basic procedure which concerns on embodiment of this invention. It is a figure for demonstrating the frequency distance which concerns on embodiment of this invention.
  • 4 is a flow chart showing an example of a processing procedure of the base station according to the embodiment of the present invention; It is a figure showing an example of functional composition of a base station concerning an embodiment of the invention. It is a figure which shows an example of the functional structure of the terminal which concerns on embodiment of this invention. It is a figure which shows an example of the hardware configuration of the base station or terminal which concerns on embodiment of this invention. It is a figure showing an example of composition of vehicles concerning an embodiment of the invention.
  • existing technology may be used as appropriate.
  • the existing technology is, for example, existing NR or LTE, but is not limited to existing NR or LTE.
  • LTE Long Term Evolution
  • LTE-Advanced and LTE-Advanced and subsequent systems eg, 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 system may be a TDD (Time Division Duplex) system, an FDD (Frequency Division Duplex) system, or other (for example, Flexible Duplex etc.) method may be used.
  • TDD Time Division Duplex
  • FDD Frequency Division Duplex
  • configure of wireless parameters and the like may mean that predetermined values are pre-configured (pre-configured).
  • the wireless parameters notified from may be set.
  • FIG. 1 is a diagram for explaining a radio communication system according to an embodiment of the present invention.
  • a radio communication system according to an embodiment of the present invention includes a base station 10 and a terminal 20, as shown in FIG. Although one base station 10 and one terminal 20 are shown in FIG. 1, this is an example and there may be more than one.
  • the base station 10 is a communication device that provides one or more cells and performs wireless communication with the terminal 20.
  • Physical resources of radio signals 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 is defined by the number of subcarriers or resource blocks. good too.
  • a TTI Transmission Time Interval
  • a slot or a TTI may be a subframe.
  • the base station 10 transmits the synchronization signal and system information to the terminal 20.
  • Synchronization signals are, for example, NR-PSS and NR-SSS.
  • the system information is transmitted by, for example, NR-PBCH, and is also called broadcast information.
  • the synchronization signal and system information may be called SSB (SS/PBCH block).
  • the base station 10 transmits control signals or data to the terminal 20 on DL (Downlink) and receives control signals or data from the terminal 20 on UL (Uplink).
  • Both the base station 10 and the terminal 20 can perform beamforming to transmit and receive signals.
  • both the base station 10 and the terminal 20 can apply MIMO (Multiple Input Multiple Output) communication to DL or UL.
  • MIMO Multiple Input Multiple Output
  • 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) by CA (Carrier Aggregation).
  • SCell Secondary Cell
  • PCell Primary Cell
  • CA Carrier Aggregation
  • the terminal 20 may communicate via a primary cell of the base station 10 and a primary secondary cell group cell (PSCell: Primary SCG Cell) of another base station 10 by DC (Dual Connectivity).
  • DC Dual Connectivity
  • the terminal 20 is a communication device with a wireless communication function, such as a smartphone, mobile phone, tablet, wearable terminal, or M2M (Machine-to-Machine) communication module. As shown in FIG. 1 , the terminal 20 receives control signals or data from the base station 10 on the DL and transmits control signals or data to the base station 10 on the UL, thereby performing various functions provided by the wireless communication system. Use communication services. Also, the terminal 20 receives various reference signals transmitted from the base station 10, and measures channel quality based on the reception result of the reference signals. Note that the terminal 20 may be called UE, and the base station 10 may be called gNB.
  • FIG. 2 is a diagram for explaining the interband CA system according to the embodiment of the present invention.
  • NR Release 17 the definition of inter-band CA in the FR2 frequency band is being considered.
  • the FR2 inter-band CA is classified into two types, the same frequency group and different frequency groups, depending on the configured band.
  • the same frequency group consists of a band of 28 GHz band+28 GHz band or 40 GHz band+40 GHz band.
  • a different frequency group consists of the 28 GHz+40 GHz band.
  • FR2 interband CA is classified into two types, CBM (common beam management) and IBM (independent beam management), depending on the FR2 band beam control method of the terminal 20 .
  • CBM refers to a control method for forming beams of all bands based on a reference signal notified to one band in a plurality of bands constituting FR2 interband CA.
  • a single chain structure refers to a design in which all bands that make up the FR2 interband CA share one RF circuit.
  • Multi-chain architecture refers to designs with independent RF circuits for each band.
  • FIG. 3 is a diagram showing a basic procedure example in the embodiment of the present invention. First, a basic operation example in the wireless communication system of this embodiment will be described with reference to FIG.
  • the terminal 20 transmits capability information (UE capability) to the base station 10. Based on this capability information, the base station 10 can determine the content of information to be transmitted to the terminal 20 in S101 and S102 below, for example.
  • UE capability capability information
  • the base station 10 transmits configuration information to the terminal 20 by means of an RRC message, and the terminal 20 receives the configuration information.
  • the setting information is, for example, setting information regarding a set of K1 and a TDRA table, which will be described later. Note that both the set of K1 and the TDRA table may be notified from the base station 10 to the terminal 20, or may be predetermined by specifications or the like, and the base station 10 and the terminal 20 may may be used. Also, the TDRA table may be called time domain resource allocation configuration information.
  • the base station 10 transmits scheduling (assignment information) for a plurality of PDSCHs to the terminal 20 using DCI, and the terminal 20 receives the DCI.
  • the DCI also contains information about uplink resources for transmitting HARQ-ACK information.
  • the terminal 20 receives PDSCH based on the scheduling information in DCI, and transmits HARQ-ACK information to the base station 10 in S104.
  • Base station 10 receives the HARQ-ACK information.
  • FIG. 4 is a diagram for explaining the frequency distance according to the embodiment of the present invention.
  • the frequency distance between CC1 and CC2 is Fx shown in FIG.
  • the requirements for reception sensitivity that the terminal 20 should satisfy are relaxed according to the relationship between the frequency distance Fx and the specified value Fs_inter_CBM included in the capability information.
  • FIG. 5 is a flow chart showing an example of the processing procedure of the base station according to the embodiment of the present invention.
  • the base station 10 receives capability information from the terminal 20 (step S200).
  • the capability information includes a specified value Fs_inter_CBM related to the frequency distance Fx.
  • the base station 10 determines whether or not the frequency distance Fx of multiple bands forming CA exceeds the range defined by Fs_inter_CBM (step S201).
  • the base station 10 determines that the frequency distance Fx of the multiple bands forming CA exceeds the range defined by Fs_inter_CBM (step S201: YES)
  • the requirements for the reception sensitivity of the terminal 20 are changed according to the setting value. Relax (step S202).
  • step S201 determines whether the frequency distance Fx does not exceed the range defined by Fs_inter_CBM (step S201: NO). Also, if it is determined that the frequency distance Fx does not exceed the range defined by Fs_inter_CBM (step S201: NO), the process of step S202 is skipped.
  • the base station 10 bundles multiple CCs by CA and transmits a signal to the terminal (step S203).
  • the base station 10 may change the transmission power of the signal, assuming that the requirements for reception sensitivity differ depending on whether or not the process of step S202 has been performed. For example, when the requirements for the reception sensitivity of the terminal 20 are relaxed, the base station 10 may increase the transmission power according to the relaxed reception sensitivity value.
  • the capability information may include a range of frequency distance and a relaxation value of reception sensitivity.
  • the capability information may include a frequency distance range as a condition for defining a relaxation value, and a relaxation value associated with each frequency distance range exceeding the frequency distance range.
  • Capability information may include Fs_inter_CBM and MSD_Fs_inter_CBM below.
  • Fs_inter_CBM ⁇ 200MHz, 400MHz, 600MHz, 800MHz... ⁇
  • MSD_Fs_inter_CBM ⁇ 2dB, 4dB, 6dB, 8dB... ⁇
  • Each setting value described above includes one or more numerical values when the relaxation rule is applied. Also, if each set value does not contain a numerical value, it may indicate that the relaxed rule is not applied.
  • the range below 200 MHz is the defined range of frequency distance used for the determination shown in FIG.
  • Fs_inter_CBM ⁇ 200MHz, 400MHz ⁇
  • MSD_Fs_inter_CBM ⁇ 2dB, 4dB ⁇
  • the base station 10 relaxes the reception sensitivity requirements of the terminal 20 according to the set value. Specifically, when the frequency distance of the CCs to be bundled is 200 MHz or more and less than 400 MHz, the base station 10 relaxes the reception sensitivity requirement of the terminal 20 by 2 dB, and when the frequency distance of the CCs to be bundled is 400 MHz or more, The requirements for the receiver sensitivity of terminal 20 are relaxed by 4 dB.
  • the capability information may include one or more Fs_inter_CBM_(relaxation values) indicating frequency distances corresponding to particular relaxation values, for example:
  • Fs_inter_CBM_5dB ⁇ 200MHz, 400MHz, 600MHz, 800MHz... ⁇
  • Fs_inter_CBM_10dB ⁇ 200MHz, 400MHz, 600MHz, 800MHz... ⁇
  • the range of frequency distances smaller than the specified value of Fs_inter_CBM_ (relaxation value) including the smallest relaxation value may be the specified range of frequency distances used for the determination shown in FIG.
  • the range below 600 MHz is the defined range of frequency distance used for the determination shown in FIG.
  • the base station 10 relaxes the reception sensitivity requirements of the terminal 20 according to the set value. Specifically, when the frequency distance of the bundled CCs is 600 MHz or more, the base station 10 relaxes the requirements for the reception sensitivity of the terminal 20 by 5 dB, and when the frequency distance is 800 MHz or more, the reception sensitivity of the terminal 20 is is relaxed by 10 dB.
  • the capability information may include one or more MSD_Fs_inter_CBM_(frequency distance) indicating a relaxation value corresponding to a particular frequency distance, for example:
  • MSD_Fs_inter_CBM_800MHz ⁇ 2dB, 4dB, 6dB, 8dB... ⁇
  • MSD_Fs_inter_CBM_1600MHz ⁇ 2dB, 4dB, 6dB, 8dB... ⁇
  • the range less than the frequency distance associated with the item MSD_Fs_inter_CBM_ (frequency distance) containing the smallest frequency distance may be the defined range of the frequency distance used for the determination shown in FIG.
  • the range below 800 MHz is the defined range of frequency distance used for the determination shown in FIG.
  • MSD_Fs_inter_CBM_800MHz ⁇ 2dB ⁇
  • MSD_Fs_inter_CBM_1600MHz ⁇ 4dB ⁇
  • the base station 10 relaxes the reception sensitivity requirement of the terminal 20 according to the set value. Specifically, when the frequency distance of the bundled CCs is 800 MHz or more and 1600 MHz, the base station 10 relaxes the reception sensitivity requirements of the terminal 20 by 2 dB, and when the frequency distance is 1600 MHz or more, the base station 10 relaxes the reception sensitivity of the terminal 20 Relax sensitivity requirements by 4 dB.
  • the capability information may include only the range of frequency distance, in which case the value of reception sensitivity that is relaxed when the range of frequency distance is exceeded is specified in advance as a fixed value in dB units, for example. good.
  • the capability information may include the following Fs_inter_CBM.
  • Fs_inter_CBM ⁇ 200MHz, 400MHz, 600MHz, 800MHz... ⁇
  • the setting values described above include one or more numerical values when the relaxed provisions are applied. Also, if the set value does not contain a numerical value, it may indicate that the relaxed rule is not applied.
  • the range below 200 MHz is the defined range of frequency distance used for the determination shown in FIG.
  • Fs_inter_CBM ⁇ 200MHz, 400MHz ⁇
  • the base station 10 relaxes the reception sensitivity requirements of the terminal 20 according to the set value.
  • the setting value may be specified by the specification, or may be set by RRC or the like.
  • the capability information according to this embodiment may be applied only to terminals 20 with a single-chain structure, or may be applied to terminals 20 with both a single-chain structure and a multi-chain structure.
  • FR2 interband CA can be set at any frequency distance. That is, it is possible to leave it up to the implementation of the base station 10 whether or not to control the frequency distance set in CA in consideration of relaxed regulations.
  • a terminal with a multi-chain structure that is less susceptible to performance degradation due to frequency distance can demonstrate superiority over a single-chain structure.
  • the base stations 10 and terminals 20 contain the functionality to implement the embodiments described above. However, each of the base station 10 and the terminal 20 may have only the functions proposed in any of the embodiments.
  • FIG. 6 is a diagram illustrating an example of a functional configuration of a base station; As shown in FIG. 6, the base station 10 has a transmitting section 110, a receiving section 120, a setting section 130, and a control section 140.
  • the functional configuration shown in FIG. 6 is merely an example. As long as the operation according to the embodiment of the present invention can be executed, the functional division and the names of the functional units may be arbitrary.
  • the transmitting unit 110 and the receiving unit 120 may be called a communication unit.
  • the transmission unit 110 includes a function of generating a signal to be transmitted to the terminal 20 side and wirelessly transmitting the signal.
  • the receiving unit 120 includes a function of receiving various signals transmitted from the terminal 20 and acquiring, for example, higher layer information from the received signals.
  • the transmitting unit 110 has a function of transmitting NR-PSS, NR-SSS, NR-PBCH, DL/UL control signals, DL data, etc. to the terminal 20 . Also, the transmission unit 110 transmits the setting information and the like described in the embodiment.
  • the setting unit 130 stores preset setting information and various setting information to be transmitted to the terminal 20 in the storage device, and reads them from the storage device as necessary.
  • the control unit 140 performs overall control of the base station 10 including control related to signal transmission/reception, for example. It should be noted that the functional unit related to signal transmission in control unit 140 may be included in transmitting unit 110 , and the functional unit related to signal reception in control unit 140 may be included in receiving unit 120 . Also, the transmitting unit 110 and the receiving unit 120 may be called a transmitter and a receiver, respectively.
  • FIG. 10 is a diagram illustrating an example of a functional configuration of a terminal; As shown in FIG. 10, the terminal 20 has a transmitting section 210, a receiving section 220, a setting section 230, and a control section 240.
  • the functional configuration shown in FIG. 10 is merely an example. As long as the operation according to the embodiment of the present invention can be executed, the functional division and the names of the functional units may be arbitrary.
  • the transmitting unit 210 and the receiving unit 220 may be called a communication unit.
  • the transmission unit 210 creates a transmission signal from the transmission data and wirelessly transmits the transmission signal.
  • the receiving unit 220 wirelessly receives various signals and acquires a higher layer signal from the received physical layer signal. Also, the transmitting unit 210 transmits HARQ-ACK, and the receiving unit 220 receives the setting information and the like described in the embodiment.
  • the setting unit 230 stores various types of setting information received from the base station 10 by the receiving unit 220 in the storage device, and reads them from the storage device as necessary.
  • the setting unit 230 also stores preset setting information.
  • the control unit 240 performs overall control of the terminal 20 including control related to signal transmission/reception. It should be noted that the functional unit related to signal transmission in control unit 240 may be included in transmitting unit 210 , and the functional unit related to signal reception in control unit 240 may be included in receiving unit 220 . Also, the transmitting section 210 and the receiving section 220 may be called a transmitter and a receiver, respectively.
  • the terminal or base station of this embodiment may be configured as a terminal or base station shown in each section below. Also, the following communication methods may be implemented.
  • a transmission unit that transmits capability information including a range of frequency distances between component carriers in interband CA (Carrier Aggregation) to a base station; a receiving unit that receives a signal to which inter-band CA is applied from the base station; A control unit that assumes that the requirements for reception sensitivity of the reception unit are relaxed when the frequency distance between component carriers that make up the signal exceeds the range of the frequency distance included in the capability information; comprising terminal.
  • the capability information includes a relaxation value associated with each range of frequency distances exceeding the range of frequency distances; The control unit relaxes the reception sensitivity requirement based on the relaxation value when the frequency distance between component carriers forming the signal exceeds the range of the frequency distance included in the capability information.
  • a terminal according to Clause 1.
  • a receiving unit that receives from a terminal capability information including a range of frequency distances between component carriers in interband CA; a transmission unit that transmits a signal to which interband CA is applied to the terminal; a control unit that assumes that requirements for reception sensitivity of the terminal are relaxed when the frequency distance between component carriers that make up the signal exceeds the range of the frequency distance included in the capability information; prepare base station.
  • (Section 4) transmitting to a base station capability information including range of frequency distances between component carriers in inter-band CA; receiving a signal to which inter-band CA is applied from the base station; a step of assuming that if the frequency distance between component carriers that make up the signal exceeds the range of the frequency distance included in the capability information, reception sensitivity requirements for reception are relaxed; prepare The method of communication performed by the terminal.
  • any of the above configurations provides a technique that makes it possible to easily implement a terminal that supports inter-band CA with a long frequency distance between component carriers. According to the second term, it is possible to relax the reception sensitivity requirement based on the relaxation value included in the capability information.
  • each functional block may be implemented using one device that is physically or logically coupled, or directly or indirectly using two or more devices that are physically or logically separated (e.g. , wired, wireless, etc.) and may be implemented using these multiple devices.
  • a functional block may be implemented by combining software in the one device or the plurality of devices.
  • Functions include judging, determining, determining, calculating, calculating, processing, deriving, investigating, searching, checking, receiving, transmitting, outputting, accessing, resolving, selecting, choosing, establishing, comparing, assuming, expecting, assuming, Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc. can't
  • a functional block (component) that performs transmission is called a transmitting unit or transmitter.
  • the implementation method is not particularly limited.
  • the base station 10, the terminal 20, etc. may function as a computer that performs processing of the wireless communication method of the present disclosure.
  • FIG. 8 is a diagram showing an example of hardware configurations of the base station 10 and the terminal 20 according to an embodiment of the present disclosure.
  • the base station 10 and terminal 20 described above are 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, and the like. good too.
  • the term "apparatus” can be read as a circuit, device, unit, or the like.
  • the hardware configuration of the base station 10 and terminal 20 may be configured to include one or more of each device shown in the figure, or may be configured without some devices.
  • Each function of the base station 10 and the terminal 20 is performed by the processor 1001 performing calculations and controlling communication by the communication device 1004 by loading predetermined software (programs) onto hardware such as the processor 1001 and the storage device 1002. or by controlling at least one of data reading and writing in the storage device 1002 and the auxiliary storage device 1003 .
  • the processor 1001 for example, operates an operating system and controls the entire computer.
  • the processor 1001 may be configured with a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, registers, and the like.
  • CPU central processing unit
  • the control unit 140 , the control unit 240 and the like described above may be implemented by the processor 1001 .
  • the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the auxiliary storage device 1003 and the communication device 1004 to the storage device 1002, and executes various processes according to them.
  • programs program codes
  • software modules software modules
  • data etc.
  • the program a program that causes a computer to execute at least part of the operations described in the above embodiments is used.
  • control unit 140 of base station 10 shown in FIG. 6 may be implemented by a control program stored in storage device 1002 and operated by processor 1001 .
  • FIG. Processor 1001 may be implemented by one or more chips.
  • the program may be transmitted from a network via an electric communication line.
  • the storage device 1002 is a computer-readable recording medium, for example, ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), etc. may be configured.
  • the storage device 1002 may also be called a register, cache, main memory (main storage device), or the like.
  • the storage device 1002 can store executable programs (program code), software modules, etc. for implementing a communication method according to an embodiment of the present disclosure.
  • the auxiliary storage device 1003 is a computer-readable recording medium, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (for example, a compact disk, a digital versatile disk, a Blu -ray disk), smart card, flash memory (eg, card, stick, key drive), floppy disk, magnetic strip, and/or the like.
  • the storage medium described above may be, for example, a database, server, or other suitable medium including at least one of storage device 1002 and secondary 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 called a network device, a network controller, a network card, a communication module, or the like.
  • the communication device 1004 includes a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc., in order to realize at least one of, for example, frequency division duplex (FDD) and time division duplex (TDD).
  • FDD frequency division duplex
  • TDD time division duplex
  • the transceiver may be physically or logically separate implementations for the transmitter and receiver.
  • the input device 1005 is an input device (for example, keyboard, mouse, microphone, switch, button, sensor, etc.) that receives input from the outside.
  • the output device 1006 is an output device (for example, display, speaker, LED lamp, etc.) that outputs to the outside. Note that the input device 1005 and the output device 1006 may be integrated (for example, 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 devices.
  • the base station 10 and the terminal 20 include hardware such as microprocessors, digital signal processors (DSPs), ASICs (Application Specific Integrated Circuits), PLDs (Programmable Logic Devices), and FPGAs (Field Programmable Gate Arrays). , and part or all of each functional block may be implemented by the hardware.
  • processor 1001 may be implemented using at least one of these pieces of hardware.
  • a 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 to 2029. , an information service unit 2012 and a communication module 2013 .
  • a communication device mounted on vehicle 2001 may be applied to communication module 2013, for example.
  • the driving unit 2002 is configured by, for example, an engine, a motor, or a hybrid of the engine and the motor.
  • the steering unit 2003 includes at least a steering wheel (also referred to as steering wheel), and is configured to steer at least one of the front wheels and the 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 , a memory (ROM, RAM) 2032 and a communication port (IO port) 2033 . Signals from various sensors 2021 to 2029 provided in the vehicle 2001 are input to the electronic control unit 2010 .
  • the electronic control unit 2010 may also be called an ECU (Electronic Control Unit).
  • the signals from the various sensors 2021 to 2029 include the current signal from the current sensor 2021 that senses the current of the motor, the rotation speed signal of the front and rear wheels acquired by the rotation speed sensor 2022, and the front wheel acquired by the air pressure sensor 2023. and rear wheel air pressure signal, vehicle speed signal obtained by vehicle speed sensor 2024, acceleration signal obtained by acceleration sensor 2025, accelerator pedal depression amount signal obtained by accelerator pedal sensor 2029, brake pedal sensor 2026 obtained by There are a brake pedal depression amount signal, a shift lever operation signal acquired by the shift lever sensor 2027, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. acquired by the object detection sensor 2028, and the like.
  • the information service unit 2012 includes various devices such as car navigation systems, audio systems, speakers, televisions, and radios for providing various types of information such as driving information, traffic information, and entertainment information, and one or more devices for controlling these devices. ECU.
  • the information service unit 2012 uses information acquired from an external device via the communication module 2013 or the like to provide passengers of the vehicle 2001 with various multimedia information and multimedia services.
  • Driving support system unit 2030 includes millimeter wave radar, LiDAR (Light Detection and Ranging), camera, positioning locator (e.g., GNSS, etc.), map information (e.g., high-definition (HD) map, automatic driving vehicle (AV) map, etc. ), gyro systems (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System), etc.), AI (Artificial Intelligence) chips, AI processors, etc., to prevent accidents and reduce the driver's driving load. and one or more ECUs for controlling these devices.
  • the driving support system unit 2030 transmits and receives various information via the communication module 2013, and realizes a driving support function or an automatic driving function.
  • the communication module 2013 can communicate with the microprocessor 2031 and components of the vehicle 2001 via communication ports.
  • the communication module 2013 communicates with the vehicle 2001 through the communication port 2033, the drive unit 2002, the steering unit 2003, the accelerator pedal 2004, the brake pedal 2005, the shift lever 2006, the front wheels 2007, the rear wheels 2008, the axle 2009, the electronic Data is transmitted and received between the microprocessor 2031 and memory (ROM, RAM) 2032 in the control unit 2010 and the sensors 2021-29.
  • 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 an external device. For example, it transmits and receives various information to and from an external device via wireless communication.
  • Communication module 2013 may be internal or external to electronic control unit 2010 .
  • the external device may be, for example, a base station, a mobile station, or the like.
  • the communication module 2013 transmits the current signal from the current sensor input to the electronic control unit 2010 to an external device via wireless communication.
  • the communication module 2013 receives the rotation speed signal of the front and rear wheels obtained by the rotation speed sensor 2022, the air pressure signal of the front and rear wheels obtained by the air pressure sensor 2023, and the 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, and a shift lever.
  • a shift lever operation signal obtained by the sensor 2027 and a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by the object detection sensor 2028 are also transmitted to an external device via wireless communication.
  • the communication module 2013 receives various information (traffic information, signal information, inter-vehicle information, etc.) transmitted from external devices, and displays it on the information service unit 2012 provided in the vehicle 2001 .
  • Communication module 2013 also stores various information received from external devices in memory 2032 available to microprocessor 2031 .
  • the microprocessor 2031 controls the drive unit 2002, the steering unit 2003, the accelerator pedal 2004, the brake pedal 2005, the shift lever 2006, the front wheels 2007, the rear wheels 2008, and the axle 2009 provided in the vehicle 2001.
  • sensors 2021 to 2029 and the like may be controlled.
  • the operations of a plurality of functional units may be physically performed by one component, or the operations of one functional unit may be physically performed by a plurality of components.
  • the processing order may be changed as long as there is no contradiction.
  • the base station 10 and the terminal 20 have been described using functional block diagrams for convenience of explanation of processing, such devices may be implemented in hardware, software, or a combination thereof.
  • the software operated by the processor of the base station 10 according to the embodiment of the present invention and the software operated by the processor of the terminal 20 according to the embodiment of the present invention are stored in random access memory (RAM), flash memory, read-only memory, respectively. (ROM), EPROM, EEPROM, register, hard disk (HDD), removable disk, CD-ROM, database, server, or any other appropriate storage medium.
  • notification of information is not limited to the aspects/embodiments described in the present disclosure, and may be performed using other methods.
  • notification of information includes 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, It may be implemented by broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or a combination thereof.
  • RRC signaling may also be called an RRC message, for example, RRC It may be a connection setup (RRC Connection Setup) message, an RRC connection reconfiguration message, or the like.
  • Each aspect/embodiment described in the present disclosure includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system) system), 6th generation mobile communication system (6G), xth generation mobile communication system (xG) (xG (x is, for example, an integer, a decimal number)), FRA (Future Radio Access), NR (new Radio), New radio access ( NX), Future generation radio access (FX), 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), and other suitable systems, and any extensions, modifications, creations, and provisions based on these systems. It may be applied to
  • a specific operation performed by the base station 10 in this specification may be performed by its upper node in some cases.
  • various operations performed for communication with terminal 20 may be performed by base station 10 and other network nodes other than base station 10 (eg, but not limited to MME or S-GW).
  • base station 10 e.g, but not limited to MME or S-GW
  • the other network node may be a combination of a plurality of other network nodes (for example, MME and S-GW).
  • Information, signals, etc. described in the present disclosure may be output from a higher layer (or a lower layer) to a lower layer (or a higher layer). It may be input and output via multiple network nodes.
  • Input/output information may be stored in a specific location (for example, memory) or managed using a management table. Input/output information and the like can be overwritten, updated, or appended. The output information and the like may be deleted. The entered information and the like may be transmitted to another device.
  • the determination in the present disclosure may be performed by a value represented by 1 bit (0 or 1), may be performed by a boolean value (Boolean: true or false), or may be performed by comparing numerical values (e.g. , comparison with a predetermined value).
  • Software whether referred to as software, firmware, middleware, microcode, hardware description language or otherwise, includes instructions, instruction sets, code, code segments, program code, programs, subprograms, and software modules. , applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, and the like.
  • software, instructions, information, etc. may be transmitted and received via a transmission medium.
  • the software uses at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.) to website, Wired and/or wireless technologies are included within the definition of transmission medium when sent from a server or other remote source.
  • wired technology coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.
  • wireless technology infrared, microwave, etc.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. may be represented by a combination of
  • the channel and/or symbols may be signaling.
  • a signal may also be a message.
  • a component carrier may also be called a carrier frequency, a cell, a frequency carrier, or the like.
  • system and “network” used in this disclosure are used interchangeably.
  • information, parameters, etc. described in the present disclosure may be expressed using absolute values, may be expressed using relative values from a predetermined value, or may be expressed using other corresponding information.
  • radio resources may be indexed.
  • base station BS
  • radio base station base station
  • base station fixed station
  • NodeB nodeB
  • eNodeB eNodeB
  • gNodeB gNodeB
  • a base station can accommodate one or more (eg, three) cells.
  • the overall coverage area of the base station can be partitioned into multiple smaller areas, each smaller area being associated with a base station subsystem (e.g., an indoor small base station (RRH:
  • RRH indoor small base station
  • the term "cell” or “sector” refers to part or all of the coverage area of at least one of the base stations and base station subsystems serving communication services in this coverage.
  • MS Mobile Station
  • UE User Equipment
  • a mobile station is defined 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 It may also be called a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term.
  • At least one of the base station and mobile station may be called a transmitting device, a receiving device, a communication device, or the like.
  • At least one of the base station and the mobile station may be a device mounted on a mobile object, the mobile object itself, or the like.
  • the mobile object may be a vehicle (e.g., car, airplane, etc.), an unmanned mobile object (e.g., drone, self-driving car, etc.), or a robot (manned or unmanned ).
  • at least one of the base station and the mobile station includes devices that do not necessarily move during communication operations.
  • at least one of the base station and mobile station may be an IoT (Internet of Things) device such as a sensor.
  • IoT Internet of Things
  • the base station in the present disclosure may be read as a user terminal.
  • communication between a base station and a user terminal is replaced with communication between multiple terminals 20 (for example, D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.)
  • the terminal 20 may have the functions of the base station 10 described above.
  • words such as "up” and “down” may be replaced with words corresponding to inter-terminal communication (for example, "side”).
  • uplink channels, downlink channels, etc. may be read as side channels.
  • user terminals in the present disclosure may be read as base stations.
  • the base station may have the functions that the above-described user terminal has.
  • determining and “determining” used in this disclosure may encompass a wide variety of actions.
  • “Judgement” and “determination” are, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiring (eg, lookup in a table, database, or other data structure), ascertaining as “judged” or “determined”, and the like.
  • "judgment” and “determination” are used for receiving (e.g., receiving information), transmitting (e.g., transmitting information), input, output, access (accessing) (for example, accessing data in memory) may include deeming that a "judgment” or “decision” has been made.
  • judgment and “decision” are considered to be “judgment” and “decision” by resolving, selecting, choosing, establishing, comparing, etc. can contain.
  • judgment and “decision” may include considering that some action is “judgment” and “decision”.
  • judgment (decision) may be read as “assuming”, “expecting”, “considering”, or the like.
  • connection means any direct or indirect connection or coupling between two or more elements, It can include the presence of one or more intermediate elements between two elements being “connected” or “coupled.” Couplings or connections between elements may be physical, logical, or a combination thereof. For example, “connection” may be read as "access”.
  • two elements are defined using at least one of one or more wires, cables, and printed electrical connections and, as some non-limiting and non-exhaustive examples, in the radio frequency domain. , electromagnetic energy having wavelengths in the microwave and optical (both visible and invisible) regions, and the like.
  • the reference signal can also be abbreviated as RS (Reference Signal), and may also be called Pilot depending on the applicable standard.
  • RS Reference Signal
  • any reference to elements using the "first,” “second,” etc. designations used in this disclosure 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, reference to a first and second element does not imply that only two elements can be employed or that the first element must precede the second element in any way.
  • a radio frame may consist of one or more frames in the time domain. Each frame or frames in the time domain may be referred to as a subframe. A subframe may also consist of one or more slots in the time domain. A subframe may be of a fixed length of time (eg, 1 ms) independent of numerology.
  • a numerology may be a communication parameter that applies to the transmission and/or reception of a signal or channel. Numerology, for example, subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame configuration, transceiver It may indicate at least one of certain filtering operations performed in the frequency domain, certain windowing operations performed by the transceiver in the time domain, and/or the like.
  • SCS subcarrier spacing
  • TTI transmission time interval
  • transceiver It may indicate at least one of certain filtering operations performed in the frequency domain, certain windowing operations performed by the transceiver in the time domain, and/or the like.
  • a slot may consist of one or more symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbol, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbol, etc.) in the time domain.
  • a slot may be a unit of time based on numerology.
  • a slot may contain multiple mini-slots. Each minislot may consist of one or more symbols in the time domain. A minislot may also be referred to as a subslot. A minislot may consist of fewer symbols than a slot.
  • PDSCH (or PUSCH) transmitted in time units larger than minislots may be referred to as PDSCH (or PUSCH) mapping type A.
  • PDSCH (or PUSCH) transmitted using minislots may be referred to as PDSCH (or PUSCH) mapping type B.
  • Radio frames, subframes, slots, minislots and symbols all represent time units when transmitting signals. Radio frames, subframes, slots, minislots and symbols may be referred to by other corresponding designations.
  • one subframe may be called a Transmission Time Interval (TTI)
  • TTI Transmission Time Interval
  • TTI Transmission Time Interval
  • TTI Transmission Time Interval
  • one slot or one minislot may be called a TTI.
  • TTI Transmission Time Interval
  • at least one of the subframe and TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (eg, 1-13 symbols), or a period longer than 1 ms may be Note that the unit representing the TTI may be called a slot, mini-slot, or the like instead of a subframe.
  • TTI refers to, for example, the minimum scheduling time unit in wireless communication.
  • the base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used by each terminal 20) to each terminal 20 on a TTI basis.
  • radio resources frequency bandwidth, transmission power, etc. that can be used by each terminal 20
  • TTI is not limited to this.
  • a TTI may be a transmission time unit such as a channel-encoded data packet (transport block), code block, or codeword, or may be a processing unit such as scheduling and link adaptation. Note that when a TTI is given, the time interval (for example, the number of symbols) in which transport blocks, code blocks, codewords, etc. are actually mapped may be shorter than the TTI.
  • one or more TTIs may be the minimum scheduling time unit. Also, the number of slots (the number of mini-slots) constituting the minimum time unit of the scheduling may be controlled.
  • a TTI having a time length of 1 ms may be called a normal TTI (TTI in LTE Rel. 8-12), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, or the like.
  • a TTI that is shorter than a normal TTI may be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a minislot, a subslot, a slot, and the like.
  • the long TTI (e.g., normal TTI, subframe, etc.) may be replaced with a TTI having a time length exceeding 1 ms
  • the short TTI e.g., shortened TTI, etc.
  • a TTI having the above TTI length may be read instead.
  • a resource block is a resource allocation unit in the time domain and the frequency domain, and may include one or more consecutive subcarriers in the frequency domain.
  • the number of subcarriers included in the RB may be the same regardless of the numerology, and may be 12, for example.
  • the number of subcarriers included in an RB may be determined based on numerology.
  • the time domain of an RB may include one or more symbols and may be 1 slot, 1 minislot, 1 subframe, or 1 TTI long.
  • One TTI, one subframe, etc. may each consist of one or more resource blocks.
  • One or more RBs are physical resource blocks (PRBs), sub-carrier groups (SCGs), resource element groups (REGs), PRB pairs, RB pairs, etc. may be called.
  • PRBs physical resource blocks
  • SCGs sub-carrier groups
  • REGs resource element groups
  • PRB pairs RB pairs, etc. may be called.
  • a resource block may be composed of one or more resource elements (RE: Resource Element).
  • RE Resource Element
  • 1 RE may be a radio resource region of 1 subcarrier and 1 symbol.
  • a bandwidth part (which may also be called a bandwidth part) may represent a subset of contiguous common resource blocks (RBs) for a certain numerology on a certain carrier.
  • the common RB may be identified by an RB index based on the common reference point of the carrier.
  • PRBs may be defined in a BWP and numbered within that BWP.
  • the BWP 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 terminal 20 within one carrier.
  • At least one of the configured BWPs may be active, and the terminal 20 may not expect to transmit or receive a given signal/channel outside the active BWP.
  • “cell”, “carrier”, etc. in the present disclosure may be read as "BWP”.
  • radio frames, subframes, slots, minislots and symbols described above are only examples.
  • the number of subframes contained in a radio frame the number of slots per subframe or radio frame, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, the number of Configurations such as the number of subcarriers, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, etc.
  • CP cyclic prefix
  • a and B are different may mean “A and B are different from each other.”
  • the term may also mean that "A and B are different from C”.
  • Terms such as “separate,” “coupled,” etc. may also be interpreted in the same manner as “different.”
  • notification of predetermined information is not limited to being performed explicitly, but may be performed implicitly (for example, not notifying the predetermined information). good too.

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

Abstract

L'invention concerne un terminal comprenant: une unité de transmission pour transmettre, à une station de base, une information de capacité qui inclut la plage de distances de fréquences entre des porteuses composantes dans une agrégation de porteuses interbande (CA); une unité de réception pour recevoir, en provenance de la station de base, un signal auquel l'interbande d'agrégation CA est appliquée; et une unité de commande qui présume que les exigences pour la sensibilité de réception de l'unité de réception doivent être supprimées si la distance de fréquence entre des porteuses composantes constituant le signal dépasse la plage de distances de fréquence comprises dans l'information de capacité.
PCT/JP2021/039023 2021-10-21 2021-10-21 Terminal, station de base, et procédé de communication WO2023067783A1 (fr)

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Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
LG ELECTRONICS: "Discussion on CBM based inter-band DL CA within same frequency group", 3GPP DRAFT; R4-2112335, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG4, no. Electronic Meeting; 20210816 - 20210827, 6 August 2021 (2021-08-06), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP052036093 *
NTT DOCOMO, INC.: "RF requirements for CA_n260-n261 with CBM", 3GPP DRAFT; R4-2112634, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG4, no. Electronic Meeting; 20210816 - 20210827, 6 August 2021 (2021-08-06), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP052036308 *
NTT DOCOMO, INC.: "UE capability for CA within same frequency group with CBM", 3GPP DRAFT; R4-2117945, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG4, no. Electronic Meeting; 20211101 - 20211112, 22 October 2021 (2021-10-22), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP052069496 *
XIAOMI: "Rx requirements for inter-band DL CA with CBM within same frequency group", 3GPP DRAFT; R4-2113096, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG4, no. Online meeting; 20210816 - 20210827, 6 August 2021 (2021-08-06), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP052036637 *

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