WO2021192306A1 - Terminal - Google Patents

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Publication number
WO2021192306A1
WO2021192306A1 PCT/JP2020/014321 JP2020014321W WO2021192306A1 WO 2021192306 A1 WO2021192306 A1 WO 2021192306A1 JP 2020014321 W JP2020014321 W JP 2020014321W WO 2021192306 A1 WO2021192306 A1 WO 2021192306A1
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WIPO (PCT)
Prior art keywords
pattern
predetermined
radio
beam pattern
radio quality
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PCT/JP2020/014321
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English (en)
Japanese (ja)
Inventor
徹 内野
卓馬 高田
佑太 寒河江
Original Assignee
株式会社Ｎｔｔドコモ
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Priority to PCT/JP2020/014321 priority Critical patent/WO2021192306A1/fr
Publication of WO2021192306A1 publication Critical patent/WO2021192306A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station

Definitions

  • the present disclosure relates to a terminal that executes wireless communication, particularly a terminal that processes a wireless signal.
  • the 3rd Generation Partnership Project (3GPP) is proceeding with the specification of the 5th generation mobile communication system (also called 5G, New Radio (NR) or Next Generation (NG)).
  • 5G New Radio
  • NG Next Generation
  • Release 15 and Release 16 (NR) of 3GPP specify the operation of multiple frequency ranges, specifically, bands including FR1 (410MHz to 7.125GHz) and FR2 (24.25GHz to 52.6GHz). ..
  • Non-Patent Document 1 Radio Quality of Service
  • the beam pattern of the terminal User Equipment, UE
  • the first beam pattern having low directivity and large coverage for example, spherical coverage
  • the second beam pattern having high directivity and small coverage for example. , Peak beam
  • an object of the present invention is to provide a terminal that clarifies the coverage standard of the UE and realizes that the coverage area of each cell is appropriately constructed. do.
  • One aspect of the present disclosure is a terminal, which is a receiving unit that receives a radio signal from a network by a beam pattern selected from one or more beam patterns, and a predetermined beam pattern included in the one or more beam patterns. It is a gist to include a processing unit for processing the radio signal received by the above.
  • FIG. 1 is an overall schematic configuration diagram of the wireless communication system 10.
  • FIG. 2 is a diagram showing a frequency range used in the wireless communication system 10.
  • FIG. 3 is a diagram showing a configuration example of a wireless frame, a subframe, and a slot used in the wireless communication system 10.
  • FIG. 4 is a functional block configuration diagram of the UE 200.
  • FIG. 5 is a diagram for explaining an application scene.
  • FIG. 6 is a diagram showing an operation example 1.
  • FIG. 7 is a diagram showing an operation example 2.
  • FIG. 8 is a diagram showing an operation example 3.
  • FIG. 9 is a diagram showing an operation example 4.
  • FIG. 10 is a diagram showing an operation example 5.
  • FIG. 11 is a diagram showing an example of the hardware configuration of the UE 200.
  • FIG. 1 is an overall schematic configuration diagram of the wireless communication system 10 according to the present embodiment.
  • the wireless communication system 10 is a wireless communication system according to 5G New Radio (NR), and includes a Next Generation-Radio Access Network 20 (hereinafter, NG-RAN20) and a terminal 200 (hereinafter, UE200).
  • NR 5G New Radio
  • NG-RAN20 Next Generation-Radio Access Network 20
  • UE200 terminal 200
  • the wireless communication system 10 may be a wireless communication system according to a method called Beyond 5G, 5G Evolution or 6G.
  • NG-RAN20 includes a radio base station 100A (hereinafter, gNB100A) and a radio base station 100B (hereinafter, gNB100B).
  • gNB100A radio base station 100A
  • gNB100B radio base station 100B
  • the specific configuration of the wireless communication system 10 including the number of gNBs and UEs is not limited to the example shown in FIG.
  • the NG-RAN20 actually includes a plurality of NG-RANNodes, specifically gNB (or ng-eNB), and is connected to a core network (5GC, not shown) according to 5G.
  • NG-RAN20 and 5GC may be simply expressed as "network”.
  • GNB100 and gNB100B are radio base stations that comply with 5G, and execute wireless communication according to UE200 and 5G.
  • the gNB100, gNB100B and UE200 are Massive MIMO (Multiple-Input Multiple-Output) and multiple component carriers (CC) that generate a beam with higher directivity by controlling radio signals transmitted from multiple antenna elements. It is possible to support carrier aggregation (CA), which is used by bundling, and dual connectivity (DC), which communicates simultaneously between the UE and each of the two NG-RAN Nodes.
  • Massive MIMO Multiple-Input Multiple-Output
  • CC component carriers
  • CA carrier aggregation
  • DC dual connectivity
  • the wireless communication system 10 supports a plurality of frequency ranges (FR).
  • FIG. 2 shows the frequency range used in the wireless communication system 10.
  • the wireless communication system 10 corresponds to FR1 and FR2.
  • the frequency bands of each FR are as follows.
  • FR1 410 MHz to 7.125 GHz
  • FR2 24.25 GHz to 52.6 GHz
  • SCS Sub-Carrier Spacing
  • BW bandwidth
  • FR2 has a higher frequency than FR1, and SCS of 60, or 120 kHz (240 kHz may be included) is used, and a bandwidth (BW) of 50 to 400 MHz may be used.
  • SCS may be interpreted as numerology. Numerology is defined in 3GPP TS38.300 and corresponds to one subcarrier spacing in the frequency domain.
  • the wireless communication system 10 also supports a higher frequency band than the FR2 frequency band. Specifically, the wireless communication system 10 corresponds to a frequency band exceeding 52.6 GHz and up to 114.25 GHz. Such a high frequency band may be referred to as "FR2x" for convenience.
  • Cyclic Prefix-Orthogonal Frequency Division Multiplexing CP-OFDM
  • DFT- Discrete Fourier Transform-Spread
  • SCS Sub-Carrier Spacing
  • FIG. 3 shows a configuration example of a wireless frame, a subframe, and a slot used in the wireless communication system 10.
  • one slot is composed of 14 symbols, and the larger (wider) the SCS, the shorter the symbol period (and slot period).
  • the SCS is not limited to the interval (frequency) shown in FIG. For example, 480kHz, 960kHz and the like may be used.
  • the number of symbols constituting one slot does not necessarily have to be 14 symbols (for example, 28, 56 symbols).
  • the number of slots per subframe may vary from SCS to SCS.
  • the time direction (t) shown in FIG. 3 may be referred to as a time domain, a symbol period, a symbol time, or the like.
  • the frequency direction may be referred to as a frequency domain, a resource block, a subcarrier, a BWP (Bandwidth part), or the like.
  • FIG. 4 is a functional block configuration diagram of the UE 200.
  • the UE 200 includes a radio signal transmission / reception unit 210, an amplifier unit 220, a modulation / demodulation unit 230, a control signal / reference signal processing unit 240, a coding / decoding unit 250, a data transmission / reception unit 260, and a control unit 270. ..
  • the wireless signal transmitter / receiver 210 transmits / receives a wireless signal according to NR.
  • the radio signal transmitter / receiver 210 corresponds to Massive MIMO, a CA that bundles a plurality of CCs, and a DC that simultaneously communicates between the UE and each of the two NG-RAN Nodes.
  • the radio signal transmission / reception unit 210 constitutes a reception unit that receives a radio signal according to a BM pattern selected from one or more beam patterns (hereinafter, may be referred to as a BM pattern).
  • the BM pattern is formed by controlling the super multi-element antenna by Massive MIMO described above. The formation of such a BM pattern is sometimes called Beamforming.
  • the amplifier unit 220 is composed of PA (Power Amplifier) / LNA (Low Noise Amplifier) and the like.
  • the amplifier unit 220 amplifies the signal output from the modulation / demodulation unit 230 to a predetermined power level. Further, the amplifier unit 220 amplifies the RF signal output from the radio signal transmission / reception unit 210.
  • the modulation / demodulation unit 230 executes data modulation / demodulation, transmission power setting, resource block allocation, etc. for each predetermined communication destination (gNB100 or other gNB).
  • Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM) / Discrete Fourier Transform-Spread (DFT-S-OFDM) may be applied to the modulation / demodulation unit 230. Further, DFT-S-OFDM may be used not only for uplink (UL) but also for downlink (DL).
  • the control signal / reference signal processing unit 240 executes processing related to various control signals transmitted / received by the UE 200 and processing related to various reference signals transmitted / received by the UE 200.
  • control signal / reference signal processing unit 240 receives various control signals transmitted from the gNB 100 via a predetermined control channel, for example, control signals of the radio resource control layer (RRC). Further, the control signal / reference signal processing unit 240 transmits various control signals to the gNB 100 via a predetermined control channel.
  • a predetermined control channel for example, control signals of the radio resource control layer (RRC).
  • RRC radio resource control layer
  • the control signal / reference signal processing unit 240 executes processing using a reference signal (RS) such as Demodulation Reference Signal (DMRS) and Phase Tracking Reference Signal (PTRS).
  • RS reference signal
  • DMRS Demodulation Reference Signal
  • PTRS Phase Tracking Reference Signal
  • DMRS is a known reference signal (pilot signal) between the base station and the terminal of each terminal for estimating the fading channel used for data demodulation.
  • PTRS is a terminal-specific reference signal for the purpose of estimating phase noise, which is a problem in high frequency bands.
  • the reference signal may include ChannelStateInformation-ReferenceSignal (CSI-RS), SoundingReferenceSignal (SRS), and PositioningReferenceSignal (PRS) for position information.
  • CSI-RS ChannelStateInformation-ReferenceSignal
  • SRS SoundingReferenceSignal
  • PRS PositioningReferenceSignal
  • control channels include PDCCH (Physical Downlink Control Channel), PUCCH (Physical Uplink Control Channel), RACH (Random Access Channel), Random Access Radio Network Temporary Identifier (RA-RNTI), Downlink Control Information (DCI), and Physical Broadcast Channel (PBCH) etc. are included.
  • PDCCH Physical Downlink Control Channel
  • PUCCH Physical Uplink Control Channel
  • RACH Random Access Channel
  • RA-RNTI Random Access Radio Network Temporary Identifier
  • DCI Downlink Control Information
  • PBCH Physical Broadcast Channel
  • the data channels include PDSCH (Physical Downlink Shared Channel) and PUSCH (Physical Uplink Shared Channel).
  • Data means data transmitted over a data channel.
  • the data channel may be read as a shared channel.
  • the coding / decoding unit 250 executes data division / concatenation and channel coding / decoding for each predetermined communication destination (gNB100 or other gNB).
  • the coding / decoding unit 250 divides the data output from the data transmitting / receiving unit 260 into a predetermined size, and executes channel coding for the divided data. Further, the coding / decoding unit 250 decodes the data output from the modulation / demodulation unit 230 and concatenates the decoded data.
  • the data transmission / reception unit 260 executes transmission / reception of Protocol Data Unit (PDU) and Service Data Unit (SDU).
  • the data transmitter / receiver 260 is a PDU / SDU in a plurality of layers (such as a medium access control layer (MAC), a wireless link control layer (RLC), and a packet data convergence protocol layer (PDCP)). Assemble / disassemble.
  • the data transmission / reception unit 260 executes data error correction and retransmission control based on the hybrid ARQ (Hybrid automatic repeat request).
  • the control unit 270 controls each functional block constituting the UE 200.
  • the control unit 270 constitutes a processing unit that processes a radio signal received by a predetermined BM pattern included in one or more BM patterns.
  • the processing of the radio signal includes at least the processing of measuring the radio quality of the radio signal.
  • Wireless signal processing includes reception processing of reference signals such as CRI-RS, DMRS, and PTRS, reception processing of broadcast information notified via PBCH, control signals (RRC-corresponding signals, MACCE-corresponding signals, etc.) It may include reception processing of data transmitted via a data channel such as PDSCH, reception processing of DCI transmitted via PDCCH, and the like.
  • the signal to be measured for wireless quality may include SS / PBCH Block, CRI-RS, etc.
  • the radio quality measurement target may be identified by RS Type.
  • the SS / PBCH Block may include SS (SynchronizationSignal) such as PSS (PrimarySynchronizationSignal) and SSS (SecondaryPrimarySynchronizationSignal), and may include DMRS for PBCH and the like.
  • the cell to be measured for wireless quality may include PCell (PrimaryCell), SCell (SecondaryCell), PSCell (PrimarySCell), SCG (SecondaryCellGroup) -SCell and the like.
  • the radio access technology (RAT; RadioAccess Technology) for which the radio quality is measured may include the same RAT (Intra-RAT) as the current RAT, a different RAT (Inter-RAT) from the current RAT, and the like.
  • the radio quality may include RSRP (Reference Signal Received Power), RSRQ (Reference Signal Received Quality), SINR (Signal-to-Noise and Interference Ratio), and the like.
  • the radio quality measurement target and radio quality may be those specified in 3GPP TS38.215 V16.0.1.
  • FIG. 5 is a diagram for explaining an application scene of the present embodiment.
  • the UE 200 can form one or more BM patterns (BM # 1 and BM # 2 in FIG. 5).
  • BM # 1 may be a BM pattern having low directivity and high coverage (for example, spherical coverage)
  • BM # 2 may be a BM pattern having high directivity and low coverage (for example, peak beam).
  • the BM pattern that the UE 200 can form is not limited to two types, and may include three or more types of BM patterns.
  • the UE 200 measures the radio quality of the radio signal received by the predetermined BM pattern included in one or more BM patterns.
  • the UE 200 uses a predetermined BM pattern as the BM pattern used in the measurement of radio quality, instead of using an arbitrary BM pattern.
  • the predetermined BM pattern may be a fixedly defined BM pattern (hereinafter, the first option). That is, the predetermined BM pattern may be a BM pattern that is commonly and fixedly defined for two or more UEs 200 provided in the wireless communication system 10. For example, BM # 2 may be fixedly defined as a predetermined BM pattern.
  • the predetermined BM pattern may be a BM pattern specified by the network (for example, NG-RAN20) (hereinafter, the second option).
  • the predetermined BM pattern may be specified by the RRC message used in the RRC layer, may be specified by the message used in MAC CE, or may be specified by the message used in the physical layer (for example, DCI).
  • the predetermined BM pattern may be a BM pattern notified to the network (for example, NG-RAN20) as a BM pattern used for measuring the radio quality (hereinafter, the third option).
  • the predetermined BM pattern may be notified to the network before the measurement of radio quality.
  • the predetermined BM pattern may be notified to the network together with the measurement report in the radio quality reporting procedure.
  • the predetermined BM pattern may be defined as shown below through the first option to the third option.
  • a predetermined BM pattern may be determined for each signal to be measured for wireless quality.
  • the signal to be measured may include SS / PBCH Block, CRI-RS, and the like.
  • the predetermined BM pattern may be common to two or more signals to be measured, or may be different for each signal to be measured.
  • the predetermined BM pattern may be determined for each cell to be measured for wireless quality.
  • the cell to be measured may include PCell, SCell, PSCell, SCG-SCell and the like.
  • the predetermined BM pattern may be common to two or more cells to be measured, or may be different for each cell to be measured.
  • the predetermined BM pattern may be determined for each RAT to be measured.
  • the RAT to be measured may include Intra-RAT, Inter-RAT, and the like.
  • the predetermined BM pattern may be common to two or more RATs to be measured, or may be different for each RAT to be measured.
  • the predetermined BM pattern may be determined for each radio quality.
  • radio quality may include RSRP, RSRQ, SINR, and the like.
  • the predetermined BM pattern may be common for two or more radio qualities, or may be different for each radio quality.
  • the predetermined BM pattern may be determined for each state of UE200.
  • the state of UE200 may include RRC CONNECTED, RRC IDLE, RRC INACTIVE and the like.
  • the predetermined BM pattern may be common for two or more UE200 states, or may be different for each UE200 state.
  • the predetermined BM pattern may be determined for each application situation using wireless quality.
  • the application status may include Measurement report in RRC CONNECTED, cell selection / reselection in RRC IDLE, and the like.
  • the application status may include MDT (Minimization of Drive Test).
  • the MDT may include an Immediate MDT that immediately transmits the measurement report, a Logged MDT that does not immediately transmit the measurement report, and the like.
  • the predetermined BM pattern may be common to two or more application situations, or may be different for each application situation.
  • the predetermined BM pattern depends on one or more parameters selected from the radio quality measurement target (signal, cell, RAT, etc.), radio quality, terminal condition and application status using radio quality. It may be determined.
  • the predetermined BM pattern may be determined according to the combination of two or more parameters selected from these parameters.
  • FIG. 6 is a diagram showing an operation example 1.
  • the operation example 1 is an operation example related to the above-mentioned option 1.
  • step S10 the UE 200 receives a radio signal from the NG-RAN 20.
  • the UE 200 receives a radio signal according to a fixedly defined predetermined BM pattern.
  • step S11 UE200 measures the radio quality of the radio signal received from NG-RAN20.
  • step S12 UE200 sends a radio quality measurement report to NG-RAN20.
  • FIG. 6 illustrates the Measurement report in RRC CONNECTED
  • the present disclosure is also applicable to Cell selection / reselection in RRC IDLE.
  • FIG. 7 is a diagram showing an operation example 2.
  • the operation example 2 is an operation example related to the above-mentioned option 2.
  • the UE 200 receives a message from the NG-RAN 20 including an information element that specifies a predetermined BM pattern.
  • the message may be an RRC message or a DCI.
  • the RRC message may include an information element indicating the measurement configuration.
  • the measurement setting may include an information element that specifies a signal to be measured, a cell to be measured, a RAT to be measured, and the like.
  • step S21 UE200 receives a radio signal from NG-RAN20.
  • the UE200 receives the radio signal according to the predetermined BM pattern specified by the NG-RAN20.
  • step S22 UE200 measures the radio quality of the radio signal received from NG-RAN20.
  • step S23 UE200 sends a radio quality measurement report to NG-RAN20.
  • FIG. 7 illustrates the Measurement report in RRC CONNECTED
  • the present disclosure is also applicable to Cell selection / reselection in RRC IDLE.
  • a predetermined BM pattern may be specified by an information element included in a message transmitted via PBCH.
  • FIG. 8 is a diagram showing an operation example 3.
  • the operation example 3 is an operation example related to the above-mentioned option 3.
  • the UE 200 receives a radio signal from the NG-RAN 20.
  • the UE200 receives the radio signal according to the current BM pattern.
  • the current BM pattern is a predetermined BM pattern notified to NG-RAN20 as a BM pattern used for measuring radio quality.
  • step S31 UE200 measures the radio quality of the radio signal received from NG-RAN20.
  • step S32 UE200 sends a radio quality measurement report to NG-RAN20.
  • FIG. 8 illustrates the Measurement report in RRC CONNECTED
  • the present disclosure is also applicable to Cell selection / reselection in RRC IDLE.
  • an information element indicating a predetermined BM pattern may be included in a message reported to NG-RAN20 when RRCIDLE changes to RRCCONNECTED.
  • FIG. 9 is a diagram showing an operation example 4.
  • the operation example 4 is an operation example related to the above-mentioned option 3.
  • step S40 the UE 200 transmits a message including an information element that specifies a predetermined BM pattern to the NG-RAN 20.
  • the message may be sent via PUCCH or via PUSCH.
  • step S41 UE200 receives a radio signal from NG-RAN20.
  • the UE 200 receives a radio signal according to a predetermined BM pattern notified to the NG-RAN 20 as a BM pattern used for measuring the radio quality.
  • step S42 UE200 measures the radio quality of the radio signal received from NG-RAN20.
  • step S43 UE200 sends a radio quality measurement report to NG-RAN20.
  • FIG. 9 illustrates the Measurement report in RRC CONNECTED
  • the present disclosure is also applicable to Cell selection / reselection in RRC IDLE.
  • UE200 which was RRC CONNECTED in step S40, has transitioned to RRC IDLE in steps S41 and S42.
  • FIG. 10 is a diagram showing an operation example 5.
  • the operation example 5 is an operation example applicable through the above-mentioned options 1 to 3.
  • step S50 the UE 200 transmits a message including an information element indicating a predetermined BM pattern used for measuring the radio quality to the NG-RAN 20.
  • An information element indicating a predetermined BM pattern may be included in UE capability.
  • the predetermined BM pattern may be determined according to one or more parameters selected from the radio quality measurement target (signal, cell, RAT, etc.), radio quality, terminal condition, and application status using radio quality. ..
  • the predetermined BM pattern may be determined according to the combination of two or more parameters selected from these parameters.
  • the UE 200 measures the radio quality of a radio signal received by a predetermined BM pattern included in one or more BM patterns. According to such a configuration, since the BM pattern used for measuring the radio quality is known to the network, the coverage standard of the UE can be clarified, and the coverage area of each cell can be appropriately constructed. ..
  • the UE 200 provided in the wireless communication system 10 may include a UE 200 capable of forming one BM pattern, or may include a UE 200 capable of forming three or more BM patterns.
  • the UE 200 provided in the wireless communication system 10 may include UE 200s having different numbers of BM patterns that can be formed.
  • the embodiment may be applied to FR2 or other FR (for example, FR2x described above).
  • the predetermined BM pattern may be determined for each FR.
  • the predetermined BM pattern may be common to two or more FRs, or may be different for each FR.
  • a predetermined BM pattern is explicitly notified from UE200 to NG-RAN20.
  • the embodiment is not limited to this.
  • the predetermined BM pattern may be implicitly notified from UE200 to NG-RAN20.
  • a predetermined BM pattern may be notified to the NG-RAN 20 according to the resource positions of the time domain and the frequency domain. In such a case, the mapping between the resource position of the time domain and the frequency domain and the BM pattern may be notified in advance from NR-RAN20 to UE200.
  • any BM pattern may be used as the BM pattern used for the measurement of the radio quality. ..
  • the NG-RAN20 may grasp that the BM pattern used for measuring the radio quality is arbitrary.
  • the NG-RAN20 when the predetermined BM pattern is not notified from the UE 200 to the NG-RAN20, the NG-RAN20 has an arbitrary BM pattern used for measuring the radio quality. You may grasp that.
  • each functional block is realized by any combination of at least one of hardware and software.
  • the method of realizing each functional block is not particularly limited. That is, each functional block may be realized by using one device that is physically or logically connected, or directly or indirectly (for example, by two or more devices that are physically or logically separated). , Wired, wireless, etc.) and may be realized using these plurality of devices.
  • the functional block may be realized by combining the software with the one device or the plurality of devices.
  • Functions include judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, solution, selection, selection, establishment, comparison, assumption, expectation, and assumption. Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc., but limited to these I can't.
  • a functional block that makes transmission function is called a transmitting unit (transmitting unit) or a transmitter (transmitter).
  • transmitting unit transmitting unit
  • transmitter transmitter
  • FIG. 11 is a diagram showing an example of the hardware configuration of the device. As shown in FIG. 11, the device may be configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like.
  • the word “device” can be read as a circuit, device, unit, etc.
  • the hardware configuration of the device may be configured to include one or more of the devices shown in the figure, or may be configured not to include some of the devices.
  • Each functional block of the device (see FIG. 4) is realized by any hardware element of the computer device or a combination of the hardware elements.
  • the processor 1001 performs an operation by loading predetermined software (program) on the hardware such as the processor 1001 and the memory 1002, and controls the communication by the communication device 1004, or the memory. It is realized by controlling at least one of reading and writing of data in 1002 and storage 1003.
  • predetermined software program
  • Processor 1001 operates, for example, an operating system to control the entire computer.
  • the processor 1001 may be composed of a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, a register, and the like.
  • CPU central processing unit
  • the processor 1001 reads a program (program code), a software module, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002, and executes various processes according to these.
  • a program program code
  • a program that causes a computer to execute at least a part of the operations described in the above-described embodiment is used.
  • the various processes described above may be executed by one processor 1001 or may be executed simultaneously or sequentially by two or more processors 1001.
  • Processor 1001 may be implemented by one or more chips.
  • the program may be transmitted from the network via a telecommunication line.
  • the memory 1002 is a computer-readable recording medium, and is composed of at least one such as ReadOnlyMemory (ROM), ErasableProgrammableROM (EPROM), Electrically ErasableProgrammableROM (EEPROM), and RandomAccessMemory (RAM). May be done.
  • the memory 1002 may be referred to as a register, a cache, a main memory (main storage device), or the like.
  • the memory 1002 can store a program (program code), a software module, or the like that can execute the method according to the embodiment of the present disclosure.
  • the storage 1003 is a computer-readable recording medium, for example, an optical disk such as Compact Disc ROM (CD-ROM), a hard disk drive, a flexible disk, an optical magnetic disk (for example, a compact disk, a digital versatile disk, or a Blu-ray). It may consist of at least one (registered trademark) disk), smart card, flash memory (eg, card, stick, key drive), floppy (registered trademark) disk, magnetic strip, and the like.
  • Storage 1003 may be referred to as auxiliary storage.
  • the recording medium described above may be, for example, a database, server or other suitable medium containing at least one of memory 1002 and storage 1003.
  • the communication device 1004 is hardware (transmission / reception device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, or the like.
  • the communication device 1004 includes, for example, 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). It may be composed of.
  • FDD frequency division duplex
  • TDD time division duplex
  • the input device 1005 is an input device (for example, keyboard, mouse, microphone, switch, button, sensor, etc.) that accepts input from the outside.
  • the output device 1006 is an output device (for example, a display, a speaker, an LED lamp, etc.) that outputs to the outside.
  • the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).
  • Bus 1007 may be configured using a single bus or may be configured using different buses for each device.
  • the device includes hardware such as a microprocessor, a digital signal processor (Digital Signal Processor: DSP), an Application Specific Integrated Circuit (ASIC), a Programmable Logic Device (PLD), and a Field Programmable Gate Array (FPGA).
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • PLD Programmable Logic Device
  • FPGA Field Programmable Gate Array
  • the hardware may realize a part or all of each functional block.
  • processor 1001 may be implemented using at least one of these hardware.
  • information notification includes physical layer signaling (eg Downlink Control Information (DCI), Uplink Control Information (UCI), higher layer signaling (eg RRC signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block)). (MIB), System Information Block (SIB)), other signals or a combination thereof.
  • DCI Downlink Control Information
  • UCI Uplink Control Information
  • RRC signaling eg RRC signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block)).
  • MIB System Information Block
  • SIB System Information Block
  • RRC signaling may also be referred to as an RRC message, for example, RRC Connection Setup. ) Message, RRC Connection Reconfiguration message, etc. may be used.
  • LTE LongTermEvolution
  • LTE-A LTE-Advanced
  • SUPER3G IMT-Advanced
  • 4G 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • FutureRadioAccess FAA
  • NewRadio NR
  • W-CDMA registered trademark
  • GSM registered trademark
  • CDMA2000 Code Division Multiple Access 2000
  • UMB UltraMobile Broadband
  • IEEE802.11 Wi-Fi (registered trademark)
  • IEEE802.16 WiMAX®
  • IEEE802.20 Ultra-WideBand (UWB), Bluetooth®, and other systems that utilize appropriate systems and at least one of the next-generation systems extended based on them.
  • a plurality of systems may be applied in combination (for example, a combination of at least one of LTE and LTE-A and 5G).
  • the specific operation performed by the base station in the present disclosure may be performed by its upper node.
  • various operations performed for communication with a terminal are performed by the base station and other network nodes other than the base station (for example, MME or). It is clear that it can be done by at least one of (but not limited to, S-GW, etc.).
  • S-GW network node
  • the case where there is one network node other than the base station is illustrated above, it may be a combination of a plurality of other network nodes (for example, MME and S-GW).
  • Information and signals can be output from the upper layer (or lower layer) to the lower layer (or upper layer).
  • Input / output may be performed via a plurality of network nodes.
  • the input / output information may be stored in a specific location (for example, memory) or may be managed using a management table.
  • the input / output information can be overwritten, updated, or added.
  • the output information may be deleted.
  • the input information may be transmitted to another device.
  • the determination may be made by a value represented by 1 bit (0 or 1), by a boolean value (Boolean: true or false), or by comparing numerical values (for example, a predetermined value). It may be done by comparison with the value).
  • the notification of predetermined information (for example, the notification of "being X") is not limited to the explicit one, but is performed implicitly (for example, the notification of the predetermined information is not performed). May be good.
  • Software whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, is an instruction, instruction set, code, code segment, program code, program, subprogram, software module.
  • Applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, etc. should be broadly interpreted.
  • software, instructions, information, etc. may be transmitted and received via a transmission medium.
  • a transmission medium For example, a website, where 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.).
  • wired technology coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.
  • wireless technology infrared, microwave, etc.
  • the information, signals, etc. described in this disclosure may be represented using any of a variety of different techniques.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description are voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. It may be represented by a combination of.
  • a channel and a symbol may be a signal (signaling).
  • the signal may be a message.
  • the component carrier (CC) may be referred to as a carrier frequency, a cell, a frequency carrier, or the like.
  • system and “network” used in this disclosure are used interchangeably.
  • the information, parameters, etc. described in the present disclosure may be expressed using absolute values, relative values from predetermined values, or using other corresponding information. It may be represented.
  • the radio resource may be one indicated by an index.
  • Base Station BS
  • Wireless Base Station Wireless Base Station
  • NodeB NodeB
  • eNodeB eNodeB
  • gNodeB gNodeB
  • Base stations are sometimes referred to by terms such as macrocells, small cells, femtocells, and picocells.
  • the base station can accommodate one or more (for example, three) cells (also called sectors). When a base station accommodates multiple cells, the entire coverage area of the base station can be divided into multiple smaller areas, each smaller area being a base station subsystem (eg, a small indoor base station (Remote Radio)). Communication services can also be provided by Head: RRH).
  • a base station subsystem eg, a small indoor base station (Remote Radio)
  • Communication services can also be provided by Head: RRH).
  • cell refers to a part or all of a base station that provides communication services in this coverage and at least one of the coverage areas of a base station subsystem.
  • MS mobile station
  • UE user equipment
  • terminal terminal
  • Mobile stations can be used by those skilled in the art as subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless. It may also be referred to as a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term.
  • At least one of the base station and the 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 the mobile body, the mobile body itself, or the like.
  • the moving body may be a vehicle (for example, a car, an airplane, etc.), an unmanned moving body (for example, a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned type). ) May be.
  • at least one of the base station and the mobile station includes a device that does not necessarily move during communication operation.
  • at least one of a base station and a mobile station may be an Internet of Things (IoT) device such as a sensor.
  • IoT Internet of Things
  • the base station in the present disclosure may be read as a mobile station (user terminal, the same applies hereinafter).
  • communication between a base station and a mobile station has been replaced with communication between a plurality of mobile stations (for example, it may be called Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.).
  • D2D Device-to-Device
  • V2X Vehicle-to-Everything
  • Each aspect / embodiment of the present disclosure may be applied to the configuration.
  • the mobile station may have the functions of the base station.
  • words such as "up” and “down” may be read as words corresponding to communication between terminals (for example, "side”).
  • the upstream channel, the downstream channel, and the like may be read as a side channel.
  • the mobile station in the present disclosure may be read as a base station.
  • the base station may have the functions of the mobile station.
  • the wireless frame may be composed of one or more frames in the time domain. Each one or more frames in the time domain may be referred to as a subframe.
  • the subframe may be further composed of one or more slots in the time domain.
  • the subframe may have a fixed time length (eg, 1 ms) that is independent of numerology.
  • the numerology may be a communication parameter that applies to at least one of the transmission and reception of a signal or channel.
  • Numerology includes, for example, SubCarrier Spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, wireless frame configuration, transmission / reception.
  • SCS SubCarrier Spacing
  • TTI transmission time interval
  • At least one of a specific filtering process performed by the machine in the frequency domain, a specific windowing process performed by the transmitter / receiver in the time domain, and the like may be indicated.
  • the slot may be composed of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbol, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol, etc.) in the time domain. Slots may be in numerology-based time units.
  • OFDM Orthogonal Frequency Division Multiplexing
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • the slot may include a plurality of mini slots. Each minislot may consist of one or more symbols in the time domain. Further, the mini slot may be referred to as a sub slot. A minislot may consist of a smaller number of symbols than the slot.
  • PDSCH (or PUSCH) transmitted in time units larger than the minislot may be referred to as PDSCH (or PUSCH) mapping type A.
  • the PDSCH (or PUSCH) transmitted using the minislot may be referred to as PDSCH (or PUSCH) mapping type B.
  • the wireless frame, subframe, slot, minislot and symbol all represent the time unit when transmitting a signal.
  • the radio frame, subframe, slot, minislot and symbol may have different names corresponding to each.
  • one subframe may be referred to as a transmission time interval (TTI)
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI slot or one minislot
  • at least one of the subframe and TTI may be a subframe (1ms) in existing LTE, a period shorter than 1ms (eg, 1-13 symbols), or a period longer than 1ms. It may be.
  • the unit representing TTI may be called a slot, a mini slot, or the like instead of a subframe.
  • TTI refers to, for example, the minimum time unit of scheduling in wireless communication.
  • a base station schedules each user terminal to allocate radio resources (frequency bandwidth that can be used in each user terminal, transmission power, etc.) in TTI units.
  • the definition of TTI is not limited to this.
  • the TTI may be a transmission time unit such as a channel-encoded data packet (transport block), a code block, or a code word, or may be a processing unit such as scheduling or link adaptation.
  • the time interval for example, the number of symbols
  • the transport block, code block, code word, etc. may be shorter than the TTI.
  • one or more TTIs may be the minimum time unit for scheduling. Further, the number of slots (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), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, a slot, or the like.
  • TTIs shorter than normal TTIs may be referred to as shortened TTIs, short TTIs, partial TTIs (partial or fractional TTIs), shortened subframes, short subframes, minislots, subslots, slots, and the like.
  • the long TTI (for example, normal TTI, subframe, etc.) may be read as a TTI having a time length of more than 1 ms
  • the short TTI (for example, shortened TTI, etc.) may be read as less than the TTI length of the long TTI and 1 ms. It may be read as a TTI having the above TTI length.
  • the resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may include one or a plurality of continuous subcarriers in the frequency domain.
  • the number of subcarriers contained in RB may be the same regardless of numerology, and may be, for example, 12.
  • the number of subcarriers contained in the RB may be determined based on numerology.
  • the time domain of RB may include one or more symbols, and may have a length of 1 slot, 1 mini slot, 1 subframe, or 1 TTI.
  • Each 1TTI, 1 subframe, etc. may be composed of one or a plurality of resource blocks.
  • One or more RBs include a physical resource block (Physical RB: PRB), a sub-carrier group (Sub-Carrier Group: SCG), a resource element group (Resource Element Group: REG), a PRB pair, an RB pair, and the like. May be called.
  • Physical RB Physical RB: PRB
  • SCG sub-carrier Group
  • REG resource element group
  • PRB pair an RB pair, and the like. May be called.
  • the resource block may be composed of one or a plurality of resource elements (ResourceElement: RE).
  • RE resource elements
  • 1RE may be a radio resource area of 1 subcarrier and 1 symbol.
  • Bandwidth Part (which may also be called partial bandwidth, etc.) may represent a subset of consecutive common RBs (common resource blocks) for a neurology in a carrier. good.
  • the common RB may be specified by the index of the RB with respect to the common reference point of the carrier.
  • PRBs may be defined in a BWP and numbered within that BWP.
  • BWP may include BWP for UL (UL BWP) and BWP for DL (DL BWP).
  • BWP for UL
  • DL BWP BWP for DL
  • One or more BWPs may be set in one carrier for the UE.
  • At least one of the configured BWPs may be active, and the UE may not expect to send or receive a given signal / channel outside the active BWP.
  • “cell”, “carrier” and the like in this disclosure may be read as “BWP”.
  • the above-mentioned structures such as wireless frames, subframes, slots, minislots and symbols are merely examples.
  • the number of subframes contained in a wireless frame the number of slots per subframe or wireless frame, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, and the number of RBs.
  • the number of subcarriers, the number of symbols in the TTI, the symbol length, the cyclic prefix (CP) length, and other configurations can be changed in various ways.
  • connection means any direct or indirect connection or connection between two or more elements, and each other. It can include the presence of one or more intermediate elements between two “connected” or “combined” elements.
  • the connections or connections between the elements may be physical, logical, or a combination thereof. For example, “connection” may be read as "access”.
  • the two elements use at least one of one or more wires, cables and printed electrical connections, and, as some non-limiting and non-comprehensive examples, the radio frequency domain. Can be considered to be “connected” or “coupled” to each other using electromagnetic energy having wavelengths in the microwave and light (both visible and invisible) regions.
  • the reference signal may also be abbreviated as Reference Signal (RS) and may be referred to as the Pilot depending on the applied standard.
  • RS Reference Signal
  • references to elements using designations such as “first”, “second” as used in this disclosure does not generally limit the quantity or order of those elements. These designations can be used in the present disclosure as a convenient way to distinguish between two or more elements. Thus, references to the first and second elements do not mean that only two elements can be adopted there, or that the first element must somehow precede the second element.
  • determining and “determining” used in this disclosure may include a wide variety of actions.
  • “Judgment” and “decision” are, for example, judgment (judging), calculation (calculating), calculation (computing), processing (processing), derivation (deriving), investigation (investigating), search (looking up, search, inquiry). (For example, searching in a table, database or another data structure), ascertaining may be regarded as “judgment” or “decision”.
  • judgment and “decision” are receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), and access.
  • Accessing (for example, accessing data in memory) may be regarded as "judgment” or “decision”.
  • judgment and “decision” mean that the things such as solving, selecting, choosing, establishing, and comparing are regarded as “judgment” and “decision”. Can include. That is, “judgment” and “decision” may include considering some action as “judgment” and “decision”. Further, “judgment (decision)” may be read as “assuming”, “expecting”, “considering” and the like.
  • the term "A and B are different” may mean “A and B are different from each other”.
  • the term may mean that "A and B are different from C”.
  • Terms such as “separate” and “combined” may be interpreted in the same way as “different”.
  • Radio communication system 20 NG-RAN 100 gNB 200 UE 210 Radio signal transmission / reception unit 220 Amplifier unit 230 Modulation / demodulation unit 240 Control signal / reference signal processing unit 250 Coding / decoding unit 260 Data transmission / reception unit 270 Control unit 1001 Processor 1002 Memory 1003 Storage 1004 Communication device 1005 Input device 1006 Output device 1007 Bus

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

Abstract

Un terminal selon la présente invention comprend : une unité de réception qui reçoit un signal radio provenant d'un réseau en utilisant un diagramme de rayonnement sélectionné parmi un ou plusieurs diagrammes de rayonnement ; et une unité de traitement qui traite le signal radio reçu en utilisant un diagramme de rayonnement prédéterminé inclus par lesdits un ou plusieurs diagrammes de rayonnement.
PCT/JP2020/014321 2020-03-27 2020-03-27 Terminal WO2021192306A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023079653A1 (fr) * 2021-11-04 2023-05-11 株式会社Ｎｔｔドコモ Terminal, station de base et procédé de communication

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018173163A1 (fr) * 2017-03-22 2018-09-27 株式会社Ｎｔｔドコモ Terminal utilisateur et procédé de communication radio
WO2019031190A1 (fr) * 2017-08-10 2019-02-14 ソニー株式会社 Dispositif de communication, procédé de commande de communication, et programme informatique

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018173163A1 (fr) * 2017-03-22 2018-09-27 株式会社Ｎｔｔドコモ Terminal utilisateur et procédé de communication radio
WO2019031190A1 (fr) * 2017-08-10 2019-02-14 ソニー株式会社 Dispositif de communication, procédé de commande de communication, et programme informatique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023079653A1 (fr) * 2021-11-04 2023-05-11 株式会社Ｎｔｔドコモ Terminal, station de base et procédé de communication

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