WO2022029981A1 - Terminal - Google Patents

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Publication number
WO2022029981A1
WO2022029981A1 PCT/JP2020/030274 JP2020030274W WO2022029981A1 WO 2022029981 A1 WO2022029981 A1 WO 2022029981A1 JP 2020030274 W JP2020030274 W JP 2020030274W WO 2022029981 A1 WO2022029981 A1 WO 2022029981A1
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WO
WIPO (PCT)
Prior art keywords
slot
scs
subcarrier interval
tti
unit
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Application number
PCT/JP2020/030274
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English (en)
Japanese (ja)
Inventor
浩樹 原田
大輔 栗田
慎也 熊谷
尚哉 芝池
真由子 岡野
ジン ワン
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
Publication date
Application filed by 株式会社Ｎｔｔドコモ filed Critical 株式会社Ｎｔｔドコモ
Priority to PCT/JP2020/030274 priority Critical patent/WO2022029981A1/fr
Priority to JP2022541066A priority patent/JPWO2022029981A1/ja
Publication of WO2022029981A1 publication Critical patent/WO2022029981A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information

Definitions

  • This disclosure relates to a terminal that executes wireless communication, and particularly to a terminal that supports a wide subcarrier interval such as 960 kHz.
  • the 3rd Generation Partnership Project (3GPP) specifies the 5th generation mobile communication system (also called 5G, New Radio (NR) or Next Generation (NG)), and next-generation specifications called Beyond 5G, 5G Evolution or 6G. We are also proceeding with the conversion.
  • 5G New Radio
  • NG Next Generation
  • FR1 410MHz-7.125GHz
  • FR2 24.25GHz-52.6GHz
  • Non-Patent Document 1 NR that supports up to 71GHz, which exceeds 52.6GHz, is also under consideration.
  • 5G Evolution or 6G aim to support frequency bands above 71GHz.
  • Non-Patent Document 2 PTRS
  • the particle size of the current slot format may not always be appropriate considering that the symbol length and slot length will be short.
  • the following disclosure was made in view of such a situation, and a terminal that can apply an appropriate slot format even when a wide SCS such as 960 kHz is supported in a high frequency band such as 52.6 to 71 GHz.
  • the purpose is to provide.
  • One aspect of the present disclosure is a transmission / reception unit (radio signal transmission / reception unit 210) for transmitting / receiving a radio signal to which a first subcarrier interval or a second subcarrier interval wider than the first subcarrier interval is applied, and the first.
  • a terminal UE200
  • a control unit control unit 270
  • One aspect of the present disclosure is a transmission / reception unit (radio signal transmission / reception unit 210) for transmitting / receiving a radio signal to which a first subcarrier interval or a second subcarrier interval wider than the first subcarrier interval is applied, and the first.
  • the terminal (UE200) is provided with a control unit (control unit 270) that assumes that the grain size of the slot format is coarser when the two subcarrier intervals are applied than when the first subcarrier interval is applied.
  • 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 showing an example of slot format support by the UE 200 (No. 1).
  • FIG. 6 is a diagram showing an example of slot format support by UE200 (No. 2).
  • FIG. 7 is a diagram showing an example of slot format support by the UE 200 (No. 3).
  • FIG. 8 is a diagram showing an example of slot format support by the UE 200 (No. 4).
  • FIG. 9 is a diagram showing an example of support for slot format by IAB.
  • FIG. 10 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 Next Generation-Radio Access Network 20 (hereinafter, NG-RAN20, and terminal 200 (hereinafter, UE200, User Equipment, UE)).
  • NG-RAN20 Next Generation-Radio Access Network 20
  • UE200 User Equipment
  • 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 wireless base station 100 (hereinafter, gNB100).
  • gNB100 wireless base station 100
  • 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 contains multiple 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 is a wireless base station that complies with 5G, and executes wireless communication according to UE200 and 5G.
  • the gNB100 and UE200 are Massive MIMO (Multiple-Input Multiple-Output), which generates a more directional antenna beam (hereinafter referred to as beam BM) by controlling radio signals transmitted from a plurality of antenna elements. It can support carrier aggregation (CA) that uses component carriers (CC) in a bundle, and dual connectivity (DC) that communicates simultaneously between the UE and each of the two NG-RAN Nodes.
  • CA carrier aggregation
  • CC component carriers
  • DC dual connectivity
  • the gNB100 can transmit a plurality of beam BMs having different transmission directions (simply called a direction, a radial direction, coverage, etc.) in space and time division.
  • the gNB100 may transmit a plurality of beam BMs at the same time.
  • the wireless communication system 10 may support a plurality of frequency ranges (FR).
  • FIG. 2 shows the frequency range used in the wireless communication system 10.
  • FR1 uses a Sub-Carrier Spacing (SCS) of 15, 30 or 60 kHz and may use a bandwidth (BW) of 5-100 MHz.
  • 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 interval in the frequency domain.
  • the wireless communication system 10 also supports a higher frequency band than the frequency band of FR2. Specifically, the wireless communication system 10 supports a frequency band exceeding 52.6 GHz and up to 71 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
  • S-OFDM Discrete Fourier Transform-Spread
  • FIG. 3 shows a configuration example of a wireless frame, a subframe, and a slot used in the wireless communication system 10.
  • Table 1 shows the relationship between the SCS and the symbol period.
  • the symbol period may be referred to as a symbol length, a time direction, a time domain, 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.
  • the number of symbols constituting one slot does not necessarily have to be 14 symbols (for example, 28, 56 symbols). Further, the number of slots per subframe may differ depending on the SCS.
  • an SSB (SS / PBCH Block) composed of a synchronization signal (SS: Synchronization Signal) and a downlink physical broadcast channel (PBCH: Physical Broadcast CHannel) may be used.
  • SS Synchronization Signal
  • PBCH Physical Broadcast CHannel
  • SSB is mainly transmitted from the network periodically in order for UE200 to execute cell ID and reception timing detection at the start of communication.
  • SSB is also used to measure the reception quality of each cell.
  • As the transmission cycle (periodicity) of SSB 5, 10, 20, 40, 80, 160 milliseconds and the like may be specified.
  • the initial access UE200 may be assumed to have a transmission cycle of 20 milliseconds.
  • the network can notify the UE200 of the actually transmitted SSB index display (ssb-PositionsInBurst) by signaling system information (SIB1) or radio resource control layer (RRC).
  • SIB1 signaling system information
  • RRC radio resource control layer
  • PSS Primary SS
  • SSS Secondary SS
  • PSS is a known signal that the UE200 first attempts to detect in the cell search procedure.
  • the SSS is a known signal transmitted to detect the physical cell ID in the cell search procedure.
  • PBCH After detecting an SS / PBCH Block, PBCH has a radio frame number (SFN: SystemFrameNumber) and an index for identifying the symbol positions of multiple SS / PBCH Blocks in a half frame (5 milliseconds).
  • SFN SystemFrameNumber
  • the UE200 contains the information needed to establish frame synchronization with the NR cell formed by the gNB100.
  • the PBCH can also include system parameters required to receive system information (SIB). Further, the SSB also includes a reference signal for demodulation of the broadcast channel (DMRS for PBCH).
  • DMRS for PBCH is a known signal transmitted to measure the radio channel state for PBCH demodulation.
  • FIG. 4 is a functional block configuration diagram of UE200.
  • 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 radio signal transmission / reception unit 210 transmits / receives a radio signal according to NR.
  • the radio signal transmission / reception unit 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 is applied with a second subcarrier interval wider than the first subcarrier interval, for example, 120 kHz or 240 kHz SCS (first subcarrier interval) or 960 kHz SCS. Can send and receive wireless signals.
  • the wireless signal transmission / reception unit 210 constitutes a transmission / reception unit.
  • the radio signal transmitter / receiver 210 120 kHz or 240 kHz SCS (first subcarrier interval) is applied to FR1 and / or FR2, and 960 kHz SCS (second subcarrier interval) is applied to FR2x. You may send and receive the radio signal to be received.
  • 120 kHz or 240 kHz SCS first subcarrier interval
  • 960 kHz SCS second subcarrier interval
  • 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, etc.).
  • 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, the DFT-S-OFDM may be used not only for the uplink (UL) but also for the downlink (DL).
  • the control signal / reference signal processing unit 240 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 reference signal (pilot signal) known 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 location 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. may be 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 Broadcast Channel
  • the data channels include PDSCH (Physical Downlink Shared Channel) and PUSCH (Physical Uplink Shared Channel). Data may mean data transmitted over a data channel.
  • PDSCH Physical Downlink Shared Channel
  • PUSCH Physical Uplink Shared Channel
  • PUCCH may be interpreted as a UL physical channel used for UCI (Uplink Control Information) transmission.
  • UCI can be transmitted by either PUCCH or PUSCH depending on the situation.
  • the downlink control information (DCI) may always be transmitted by PDCCH and may not be transmitted via PDSCH.
  • UCI may include at least one of hybrid ARQ (HARQ: Hybrid automatic repeat request) ACK / NACK, scheduling request (SR) from UE200, and Channel State Information (CSI).
  • HARQ Hybrid automatic repeat request
  • SR scheduling request
  • CSI Channel State Information
  • timing and radio resources for transmitting PUCCH may be controlled by DCI as in the data 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 transmission / reception unit 260 into predetermined sizes, 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 radio link control layer (RLC), and a packet data convergence protocol layer (PDCP)). Assemble / disassemble the.
  • 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 executes control regarding the setting of the slot format instructed by the downlink control information (DCI).
  • DCI downlink control information
  • control unit 270 can execute control related to DCI format 2_0, which is for slot format notification for a plurality of UE200 groups.
  • the control unit 270 has more applicable slot formats when a wide SCS (second subcarrier spacing) such as 960kHz is applied than when an SCS (first subcarrier spacing) such as 120kHz or 240kHz is applied. Can be assumed to be small.
  • the slot format may be interpreted as a format indicating whether each symbol in the slot is a downlink (DL), an uplink (UL), or a Flexible (F) available for either DL or UL. ..
  • the slot format is specified in 3GPP TS38.213 Chapter 11 (and Chapter 14). The details of the slot format will be described later.
  • the control unit 270 may assume that when the SCS (second subcarrier interval) of 960 kHz is applied, the slot format in which the number of symbols of a specific type contained in the slot is less than the specified number is not supported.
  • the specific type of symbol may be a symbol specified in any of DL (D), UL (U) or Flexible (F).
  • one slot may contain 14 symbols (and may be more), but it is assumed that, for example, slot formats with DL (D) of 2 symbols (specified number) or less are not supported. good.
  • control unit 270 may assume that, when SCS (second subcarrier interval) of 960 kHz is applied, at least a slot format in which all the types of symbols included in the slots are the same is supported.
  • SCS second subcarrier interval
  • the slot format may be supported.
  • control unit 270 has a coarser slot format particle size when an SCS (second subcarrier interval) of 960 kHz is applied than when an SCS (first subcarrier interval) such as 120 kHz or 240 kHz is applied. You may assume.
  • the particle size may be expressed by the number of symbols or directly by the time (for example, ⁇ seconds).
  • the particle size of the slot format may be a plurality of symbols such as two symbols instead of one symbol.
  • the particle size of the slot format may be read as the particle size of the symbol or the particle size of the slot.
  • NR-U is applied in the frequency band 52.6-71 GHz
  • another numerology based on a simple extension of FR2 eg, 960 kHz SCS
  • another numerology to support one 2 GHz bandwidth eg, 960 kHz SCS. 120kHz SCS
  • other numerologies may not be supported.
  • the UE200 may support a smaller number of slot formats than when a narrow SCS such as 120kHz or 240kHz is applied (see 3GPP TS38.213 Table 11.1.1-1).
  • FIG. 5 shows an example of slot format support by UE200 (No. 1). As shown in FIG. 5, slot formats 0, 1, 2 (within a solid frame) in which symbols 0 to 13 are all DL (D), UL (U), or Flexible (F) may be supported.
  • slot formats 0, 1, 2 within a solid frame in which symbols 0 to 13 are all DL (D), UL (U), or Flexible (F) may be supported.
  • FIG. 6 shows an example of slot format support by UE200 (No. 2). As shown in FIG. 6, slot formats 3, 8, 10 (inside the dotted frame) containing only one DL (D), UL (U) or Flexible (F) in the slot need not be supported.
  • FIG. 7 shows an example of slot format support by UE200 (No. 3).
  • slot format support example described above may be applied to a semi-static time division duplex (TDD) configuration or a dynamic Slot Format Indication (SFI) display. May be.
  • TDD time division duplex
  • SFI dynamic Slot Format Indication
  • FIG. 8 shows an example of slot format support by UE200 (No. 4).
  • the UE200 is a slot that is more applicable when a wide SCS (second subcarrier spacing) such as 960kHz is applied than when an SCS (first subcarrier spacing) such as 120kHz or 240kHz is applied. You can assume that the number of formats is small.
  • SCS second subcarrier spacing
  • first subcarrier spacing 120kHz or 240kHz
  • it can support a wide SCS such as 960kHz. That is, according to the wireless communication system 10, an appropriate slot format can be applied even when a wide SCS such as 960 kHz is supported in a high frequency band such as 52.6 to 71 GHz.
  • the UE 200 has a specified number of symbols of a specific type (for example, DL (D)) included in the slot (for example, 2 symbols) when an SCS (second subcarrier interval) of 960 kHz is applied. ) Less than slot formats may be assumed to be unsupported.
  • DL (D) DL
  • SCS second subcarrier interval
  • the UE 200 may assume that at least a slot format in which all the types of symbols included in the slots are the same is supported when the SCS (second subcarrier interval) of 960 kHz is applied.
  • SCS second subcarrier interval
  • the number of slot formats that should be supported is limited when a wide SCS such as 960kHz is applied, so the UE200 can operate more efficiently.
  • the UE 200 has a coarser slot format grain size when an SCS (second subcarrier interval) of 960 kHz is applied than when an SCS (first subcarrier interval) such as 120 kHz or 240 kHz is applied. You may assume that. Therefore, it is possible to prevent the slot format from becoming too fine when a wide SCS such as 960 kHz is applied, and the UE200 can operate more efficiently.
  • SCS second subcarrier interval
  • first subcarrier interval such as 120 kHz or 240 kHz
  • the above-mentioned operation related to slot format support is integrated Access and Backhaul (specifically, integrated Access and Backhaul) in which wireless access with the UE 200 and a wireless backhaul between wireless communication nodes (specifically, IAB donors and IAB nodes, etc.) are integrated. It may be applied in IAB).
  • integrated Access and Backhaul specifically, integrated Access and Backhaul
  • wireless access with the UE 200 and a wireless backhaul between wireless communication nodes specifically, IAB donors and IAB nodes, etc.
  • the slot format applied to IAB is specified in 3GPP TS38.213 Table 14.
  • FIG. 9 shows an example of slot format support by IAB.
  • the slot format 56, 57 (inside the dotted frame) contains X (2 in FIG. 9) or less of DL (D), UL (U) or Flexible (F) in the slot. ) Does not have to be supported.
  • the support example of FIG. 9 corresponds to the support example (No. 3) shown in FIG. 7, but the IAB and the above-mentioned support example (No. 1 and No. 2) may also be applied.
  • the names of the IAB donor and IAB node are different as long as the configuration of the wireless communication node in which the wireless backhaul between the wireless communication nodes such as gNB and the wireless access to the terminal are integrated is adopted. May be good. For example, it may be simply called a first node, a second node, or the like, or it may be called an upper node, a lower node, a relay node, an intermediate node, or the like.
  • the wireless communication node may be simply referred to as a communication device or a communication node, or may be read as a wireless base station.
  • the block configuration diagram (FIG. 4) used in the description of the above-described embodiment shows a block of functional units.
  • These functional blocks are 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 using one physically or logically coupled device, or two or more physically or logically separated devices can be directly or indirectly (eg, for example). , 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 (configuration unit) that makes transmission function is called a transmitting unit (transmitting unit) or a transmitter (transmitter).
  • the realization method is not particularly limited.
  • FIG. 10 is a diagram showing an example of the hardware configuration of the UE 200.
  • the UE 200 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 UE 200 may be configured to include one or more of the devices shown in the figure, or may be configured to include some of the devices.
  • Each functional block of UE200 (see FIG. 4) is realized by any hardware element of the computer device or a combination of the hardware elements.
  • each function in the UE 200 is such that 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 1002. And by controlling at least one of reading and writing of data in the storage 1003.
  • predetermined software program
  • Processor 1001 operates, for example, an operating system to control the entire computer.
  • the processor 1001 may be configured by 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, a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that accepts an 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 ApplicationSpecific Integrated Circuit (ASIC), a ProgrammableLogicDevice (PLD), and a FieldProgrammableGateArray (FPGA).
  • the hardware may implement some 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 combinations 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, eg, 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 UltraMobileBroadband
  • IEEE802.11 Wi-Fi (registered trademark)
  • IEEE802.16 WiMAX®
  • IEEE802.20 Ultra-WideBand
  • Bluetooth® Ultra-WideBand
  • other systems that utilize appropriate systems and at least one of the next-generation systems extended based on them. It may be applied to one.
  • 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 this disclosure may be performed by its upper node (upper node).
  • various operations performed for communication with the terminal are the base station and other network nodes other than the base station (eg, 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 may be overwritten, updated, or added.
  • the output information may be deleted.
  • the entered information may be transmitted to other devices.
  • the determination may be made by a value represented by one bit (0 or 1), by a true / false 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, features, 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 indexed.
  • 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.
  • a base station can accommodate one or more (eg, 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 remote radio for indoor use). Communication services can also be provided by Head: RRH).
  • RRH Remote Radio Head
  • cell refers to a base station that provides communication services in this coverage, and part or all of the coverage area of at least one of the base station subsystems.
  • 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, a mobile body itself, or the like.
  • the moving body may be a vehicle (eg, car, airplane, etc.), an unmanned moving body (eg, drone, self-driving car, etc.), or a robot (manned or unmanned). ) 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 shall apply 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.
  • the words such as "up” and “down” may be read as words corresponding to the 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 radio 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. Subframes may further be composed of one or more slots in the time domain.
  • the subframe may have a fixed time length (eg, 1 ms) that does not depend on 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 (Transmission Time Interval: TTI), number of symbols per TTI, wireless frame configuration, transmission / reception. It may indicate 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.
  • 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.
  • the slot may be a unit of time based on numerology.
  • the slot may include a plurality of mini slots. Each minislot may be composed of one or more symbols in the time domain. Further, the mini slot may be referred to as a sub slot. The 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 use 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 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. 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.
  • 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.
  • TTI with a time length of 1 ms may be called normal TTI (TTI in LTE Rel.8-12), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, etc.
  • a TTI shorter than a normal TTI may be referred to as a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a minislot, a subslot, a slot, 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 a TTI 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 are physical resource blocks (Physical RB: PRB), sub-carrier groups (Sub-Carrier Group: SCG), resource element groups (Resource Element Group: REG), PRB pairs, RB pairs, etc. May be called.
  • Physical RB Physical RB: PRB
  • sub-carrier groups Sub-Carrier Group: SCG
  • resource element groups Resource Element Group: REG
  • PRB pairs RB pairs, etc. 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 resource blocks (RBs) 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, mini-slots and symbols are merely examples.
  • the number of subframes contained in a radio frame the number of slots per subframe or radioframe, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, included in RB.
  • the number of subcarriers, as well as 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 “joined” elements.
  • the connection or connection between the elements may be physical, logical, or a combination thereof.
  • 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 can also be abbreviated as Reference Signal (RS), and may be called a pilot (Pilot) depending on the applied standard.
  • RS Reference Signal
  • Pilot pilot
  • each of the above devices may be replaced with a "part”, a “circuit”, a “device”, or the like.
  • references to elements using designations such as “first” and “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. Therefore, 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). It may include (eg, searching in a table, database or another data structure), ascertaining as “judgment” or “decision”.
  • judgment and “decision” are receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), and access. It may include (for example, accessing data in memory) to be regarded as “judgment” or “decision”.
  • judgment and “decision” are considered to be “judgment” and “decision” when 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 100A, 100B, 100C Wireless communication node 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 BM beam 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

Terminal émettant et recevant des signaux sans fil dans lesquels est utilisé un premier intervalle de sous-porteuse ou un second intervalle de sous-porteuse qui est plus large que le premier intervalle de sous-porteuse. Si le second intervalle de sous-porteuse est utilisé, le terminal suppose que le nombre de formats de créneau pouvant être utilisés est inférieur au nombre de formats de créneau pouvant être utilisés lorsque le premier intervalle de sous-porteuse est utilisé.
PCT/JP2020/030274 2020-08-06 2020-08-06 Terminal WO2022029981A1 (fr)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200213068A1 (en) * 2017-03-24 2020-07-02 Lg Electronics Inc. Method for transmitting or receiving signal in wireless communication system and apparatus therefor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200213068A1 (en) * 2017-03-24 2020-07-02 Lg Electronics Inc. Method for transmitting or receiving signal in wireless communication system and apparatus therefor

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NTT DOCOMO, INC.: "Evaluation Methodology and Required Changes on NR from 52.6 to 71 GHz", 3GPP DRAFT; R1-2004417, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20200525 - 20200605, 15 May 2020 (2020-05-15), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051886148 *
QUALCOMM INCORPORATED: "UE RX/TX Transition Times", 3GPP DRAFT; R4-1802447, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG4, no. Athens, GR; 20180226 - 20180302, 19 February 2018 (2018-02-19), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051402630 *

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