WO2023132062A1 - 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
WO2023132062A1
WO2023132062A1 PCT/JP2022/000383 JP2022000383W WO2023132062A1 WO 2023132062 A1 WO2023132062 A1 WO 2023132062A1 JP 2022000383 W JP2022000383 W JP 2022000383W WO 2023132062 A1 WO2023132062 A1 WO 2023132062A1
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WO
WIPO (PCT)
Prior art keywords
terminal
chain configuration
base station
band
carrier aggregation
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PCT/JP2022/000383
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English (en)
Japanese (ja)
Inventor
竜 北川
優太 小熊
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.)
Filing date
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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 PCT/JP2022/000383 priority Critical patent/WO2023132062A1/fr
Publication of WO2023132062A1 publication Critical patent/WO2023132062A1/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

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., in the frequency band from 24.25 GHz to 71 GHz, applicable numerology including subcarrier spacing, channel bandwidth, etc., physical layer design, possible obstacles in actual wireless communication, etc. are being studied.
  • the inter-band CA (Carrier Aggregation) specification in the frequency band from 24.25 GHz to 52.6 GHz is being considered.
  • a single-chain configuration and a multi-chain configuration are being considered as configurations of a receiving unit that can be adopted by a terminal compatible with inter-band CA.
  • the single-chain configuration is a configuration in which all bands forming the CA share one RF circuit.
  • a multi-chain configuration is a configuration having an independent RF circuit for each band.
  • the present invention has been made in view of the above points, and an object of the present invention is to realize interband CA that flexibly supports the configuration of the receiving section that can be taken by the terminal.
  • the specification for the single-chain configuration and the specification for the multi-chain configuration is applied, and a control unit that assumes that the definition of reception sensitivity requirements in carrier aggregation is applied.
  • a technology is provided that makes it possible to realize inter-band CA that flexibly supports the configuration of the receiving unit that the terminal can take.
  • FIG. 10 is a first diagram for explaining types of interband CA in the frequency band of FR2-1;
  • FIG. 10 is a second diagram for explaining types of interband CA in the frequency band of FR2-1;
  • FIG. 4 is a diagram for explaining a problem of inter-band CA in the frequency band of FR2-1;
  • FIG. 4 is a diagram for explaining a REFSENS value applied to CA reception sensitivity requirements;
  • 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 a plurality of each.
  • the base station 10 is a communication device that provides one or more cells and performs wireless communication with the terminal 20.
  • a physical resource of a radio signal is 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 the number of resource blocks. good too.
  • a TTI Transmission Time Interval
  • a TTI Transmission Time Interval
  • 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 showing an example of frequency ranges according to the embodiment of the present invention.
  • FR Frequency range 1 1
  • SCS Sub carrier spacing
  • the bandwidth is from 5 MHz to 100 MHz.
  • FR2-1 is a frequency band from 24.25 GHz to 52.6 GHz
  • SCS uses 60, 120 or 240 kHz with a bandwidth of 50 MHz to 400 MHz.
  • FR2-2 which is a newly operated frequency band, is a frequency band from 52.6 GHz to 71 GHz.
  • FIG. 3 is a first diagram for explaining the types of interband CA in the FR2-1 frequency band.
  • the inter-band CA in the frequency band of FR2-1 is classified into two types, a same frequency group and a different frequency group, depending on the configured band.
  • CA of the same frequency band group is, for example, CA of 28 GHz band+28 GHz band or 40 GHz band+40 GHz band.
  • the CA of the different frequency band group is CA of 28 GHz band+40 GHz band.
  • CBM Common Beam Management
  • IBM Independent Beam Management
  • RF configurations for CBM are classified into two types: single-chain architecture and multi-chain architecture.
  • FIG. 4 is a second diagram for explaining the types of interband CA in the FR2-1 frequency band.
  • the single chain configuration is a configuration in which all bands forming CA share one RF circuit.
  • a multi-chain configuration is a configuration having an independent RF circuit for each band.
  • CBM RF configurations can be classified into two types (single-chain configuration and multi-chain configuration), but the allowable PSD difference is expected to differ depending on the type of RF configuration.
  • FIG. 5 is a diagram for explaining problems of interband CA in the FR2-1 frequency band.
  • the terminal can receive radio waves even when the PSD difference is large.
  • the terminal cannot receive radio waves.
  • Plan 1 assumes a single chain configuration and sets the PSD difference between bands small. Plan 1 is further discussed as Plan 1-1 and Plan 1-2.
  • Plan 1-1 is a setting based on the concept of Simultaneous Sensitivity. Specifically, the received power of the tested band and untested band is set to the single-band reception sensitivity requirement value for each, so that the PSD difference is set small. .
  • the REFSENS value (Reference sensitivity requirement value) is applied to both the tested band and the untested band.
  • FIG. 6 is a diagram for explaining the REFSENS value applied to CA reception sensitivity requirements.
  • the REFSENS value is a value indicating at least how much power can be received in the peak direction of the receiving antenna.
  • the REFSENS value is a received power value that guarantees that reception is possible in the peak direction on the global surface, and is a value that guarantees the reception capability in the peak direction.
  • n257 in CA of n257 and n259 At the time of testing, test whether reception is possible at -85.3 dBm.
  • the untested band (n259) was given a received power of -81.7 dBm. That is, in this case, as a reception sensitivity requirement, the PSD difference between bands is set to a small value of 3.6 dB. Note that these values do not take relaxation values into account.
  • Proposal 1-2 is a setting where the PSD difference between bands (between the tested band and the untested band) is 6 dB or less.
  • Plan 2 is a plan to set a large PSD difference between bands, assuming only a multi-chain configuration.
  • plan 2 by setting the reception sensitivity requirement value for a single band as the reception power of the tested band and another requirement value (a value larger than the reception sensitivity requirement value) as the reception power of the untested band, A large PSD difference is set.
  • a REFSENS value reference sensitivity requirement value
  • a spherical value is applied to the untested band.
  • the spherical value is a value that indicates whether or not a terminal can receive a signal from a base station even if it rotates.
  • the spherical value is a received power value that guarantees that reception is possible in a space of 50% or more of the entire sphere, and is a value that guarantees spatial coverage.
  • n257 at CA of n257 and n259 At the time of testing, test whether reception is possible at -85.3 dBm.
  • the untested band (n259) was given a received power of -68.9 dBm. That is, in this case, as a reception sensitivity requirement, the PSD difference between bands is set to a large value of 16.4 dB. Note that these values do not take relaxation values into account.
  • plan 1 described above may be adopted as rule (i) for a single chain configuration.
  • rule (ii) for the multi-chain configuration for example, plan 2 described above may be adopted.
  • Example 1 In this embodiment, an example will be described in which the applicable criteria are defined by specifications.
  • the terminal 20 may consider any of the following options as applicable criteria.
  • the terminal 20 may assume the specified “frequency distance (fixed value) between bands configuring CA” as an application criterion. For example, terminal 20 may assume that rule (ii) for a multi-chain configuration is applied to a band combination in which the frequency distance between bands exceeds a specified value (X [MHz]). In this case, the terminal 20 may assume that the specification (i) for a single chain configuration is applied to a combination of bands in which the frequency distance between bands is equal to or less than the specified value (X [MHz]). .
  • the frequency distance between bands may be the frequency distance between the lower end of CC (Component Carrier) in the low frequency band and the upper end of CC in the high frequency band, or the upper end of CC in the low frequency band and the high end of CC. It may be the frequency distance between the lower end of the CC of the frequency band. Also, the frequency distance between bands may be another frequency distance.
  • CC Component Carrier
  • the terminal 20 may assume, as an application criterion, specification of whether a single-chain configuration is feasible for each band combination.
  • terminal 20 assumes that rule (ii) for multi-chain configuration is applied. good.
  • the terminal that can support the single-chain configuration and the terminal that can only support the multi-chain configuration etc., it is possible to flexibly deal with the configuration of the receiving unit that the terminal can take.
  • a terminal 20 may send terminal capability information for any of the following options to the base station 10 on the uplink.
  • the terminal capability information may be a value (for example, Fs_single_chain) indicating the frequency distance between bands forming CAs that can support a single chain configuration. That is, terminal 20 may assume that rule (i) for a single-chain configuration is applied when the frequency distance between bands is Fs_single_chain or less. In this case, terminal 20 may assume that rule (ii) for a multi-chain configuration is applied when the frequency distance between bands exceeds Fs_single_chain.
  • Fs_single_chain indicating the frequency distance between bands forming CAs that can support a single chain configuration. That is, terminal 20 may assume that rule (i) for a single-chain configuration is applied when the frequency distance between bands is Fs_single_chain or less. In this case, terminal 20 may assume that rule (ii) for a multi-chain configuration is applied when the frequency distance between bands exceeds Fs_single_chain.
  • Fs_single_chain ⁇ 0, 100, 200, 400, 800, .
  • Fs_single_chain is an example of a variable name that indicates the frequency distance between bands forming a CA that can support a single chain configuration, and may be another variable name.
  • the frequency distance between the bands may be the frequency distance between the lower end of CC (Component Carrier) in the low frequency band and the upper end of the CC in the high frequency band. It may be the frequency distance between the top edge of the CC of the band and the bottom edge of the CC of the higher frequency band. Also, the frequency distance between bands may be another frequency distance.
  • CC Component Carrier
  • the terminal capability information may be a value (for example, chain_type_ ⁇ band 1 ⁇ ⁇ band 2 ⁇ ) indicating whether or not a single chain configuration is supported for each band combination.
  • the terminal 20 when the combination of bands is band 1 and band 2 and the value of chain_type_ ⁇ band 1 ⁇ ⁇ band 2 ⁇ is a value indicating that a single chain configuration is supported, the terminal 20 It may be assumed that provision (i) applies. Similarly, if the value of chain_type_ ⁇ band 1 ⁇ ⁇ band 2 ⁇ is a value that indicates that a single-chain configuration is not supported, then provision (ii) for multi-chain configuration may be assumed to apply.
  • chain_type_ ⁇ band 1 ⁇ ⁇ band 2 ⁇ ⁇ Single, Multi ⁇ .
  • chain_type_ ⁇ band 1 ⁇ and ⁇ band 2 ⁇ are examples of variable names indicating whether or not a single chain configuration is supported for each combination of bands, and other names may be used.
  • the application standards for the single-chain configuration and the multi-chain configuration are clarified as the terminal capability, only the terminal that can support the single-chain configuration and the multi-chain configuration can be supported. Like a terminal or the like, it is possible to flexibly cope with the configuration of the receiving unit that the terminal can take.
  • Example 3 In this embodiment, an example will be described in which the terminal capability indicating whether or not the single chain configuration is supported is notified.
  • the terminal capability information may be a value (for example, chain_type) indicating whether or not a single chain configuration is supported, regardless of the band combination.
  • terminal 20 may assume that rule (i) for single-chain configuration is applied when the value of chain_type is a value indicating support for single-chain configuration, regardless of the combination of bands. . Similarly, if the value of chain_type is a value that indicates that a single-chain configuration is not supported, then provision (ii) for multi-chain configuration may be assumed to apply.
  • chain_type ⁇ Single, Multi ⁇ may be used.
  • chain_type is an example of a variable name that indicates whether or not a single chain configuration is supported, and may be another name.
  • Example 1 may be combined with Example 1 or Example 2.
  • the third embodiment in the case of a terminal that does not support a single-chain configuration, it is possible to apply regulations for a multi-chain configuration with a small amount of terminal capability information.
  • 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. 7 is a diagram illustrating an example of a functional configuration of a base station; As shown in FIG. 7, the base station 10 has a transmitting section 110, a receiving section 120, a setting section 130, and a control section 140.
  • FIG. 7 The functional configuration shown in FIG. 7 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. 8 is a diagram illustrating an example of a functional configuration of a terminal; As shown in FIG. 8, 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. 8 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 method may be implemented.
  • (Section 3) Further comprising a transmission unit for transmitting terminal capability information indicating whether to support the single chain configuration on the uplink, The control unit assumes that the provisions of reception sensitivity requirements in the carrier aggregation are applied based on the criteria indicated in the terminal capability information, A terminal according to Clause 1 or Clause 2. (Section 4) When the terminal capability information does not support the single-chain configuration, the control unit assumes that the multi-chain configuration specification is applied as the reception sensitivity requirement specification in the carrier aggregation. A terminal according to paragraph 3.
  • (Section 5) a transmission unit that transmits a signal to which interband carrier aggregation is applied to a terminal;
  • a control unit that assumes that the provisions of reception sensitivity requirements in the carrier aggregation are applied based on criteria indicating which of the provisions for single-chain configuration and the provisions for multi-chain configuration is applied, base station.
  • (Section 6) receiving a signal to which inter-band carrier aggregation has been applied; Assuming that the definition of reception sensitivity requirements in the carrier aggregation is applied based on criteria indicating whether to apply the definition for a single-chain configuration or the definition for a multi-chain configuration. The method of communication performed by the terminal.
  • any of the above configurations provides a technique that makes it possible to realize interband CA that flexibly supports the configuration of the receiving unit that the terminal can take.
  • the reception sensitivity requirement definition in carrier aggregation is applied based on the criteria defined in the specification.
  • the definition of reception sensitivity requirements in carrier aggregation is applied based on the criteria indicated in the terminal capability information.
  • clause 4 it can be assumed that the provisions for multi-chain configurations apply to terminals that do not support single-chain configurations.
  • each functional block may be implemented using one device physically or logically coupled, or directly or indirectly using two or more physically or logically separated devices (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, examining, searching, checking, receiving, transmitting, outputting, accessing, resolving, selecting, choosing, establishing, comparing, assuming, expecting, assuming, Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc.
  • a functional block (component) that performs transmission is called a transmitting unit or transmitter. In either case, as described above, 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. 9 is a diagram illustrating 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. 7 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 the 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 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
  • other network nodes 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 (eg, 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 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 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 a plurality of 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);
  • "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 terminal 20 may not expect to transmit or receive a given signal/channel outside the active BWP.
  • 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 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

Terminal comprenant : une unité de réception qui reçoit des signaux auxquels un regroupement de porteuses inter-bandes est appliqué ; et une unité de commande qui suppose que les dispositions pour les exigences de sensibilité de réception dans le regroupement de porteuses sont appliquées sur la base de critères indiquant si les dispositions pour une configuration à chaîne unique ou si les dispositions pour une configuration à chaînes multiples sont appliquées.
PCT/JP2022/000383 2022-01-07 2022-01-07 Terminal, station de base et procédé de communication WO2023132062A1 (fr)

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Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
MODERATOR (NOKIA): "Email discussion summary for [100-e][129] NR_RF_FR2_req_enh2_Part_1", 3GPP TSG RAN WG4 #100-E R4-2115029, 30 September 2021 (2021-09-30), XP052059310 *
MODERATOR (NOKIA): "Email discussion summary for [101-e][120] NR_RF_FR2_req_enh2_Part_1", 3GPP TSG RAN WG4 #101-E R4-2119920, 11 November 2021 (2021-11-11), XP052076044 *
NTT DOCOMO, INC.: "RF requirements for CA between different frequency groups with CBM", 3GPP TSG RAN WG4 #101-E, R4-2117944, 22 October 2021 (2021-10-22), XP052069495 *
NTT DOCOMO, INC.: "Sensitivity requirements for inter-band CA with CBM", 3GPP TSG RAN WG4 #101BIS-E R4-2200361, 10 January 2022 (2022-01-10), XP052091337 *

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