WO2021090444A1 - 通信装置 - Google Patents

通信装置 Download PDF

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Publication number
WO2021090444A1
WO2021090444A1 PCT/JP2019/043692 JP2019043692W WO2021090444A1 WO 2021090444 A1 WO2021090444 A1 WO 2021090444A1 JP 2019043692 W JP2019043692 W JP 2019043692W WO 2021090444 A1 WO2021090444 A1 WO 2021090444A1
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WO
WIPO (PCT)
Prior art keywords
intermediate device
processing time
information
delay
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2019/043692
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
大輔 平塚
邦彦 手島
アニール ウメシュ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Docomo Inc
Original Assignee
NTT Docomo Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NTT Docomo Inc filed Critical NTT Docomo Inc
Priority to PCT/JP2019/043692 priority Critical patent/WO2021090444A1/ja
Priority to CN201980101871.3A priority patent/CN114731595B/zh
Priority to US17/755,771 priority patent/US12349088B2/en
Priority to JP2021554505A priority patent/JP7407833B2/ja
Priority to EP19951365.6A priority patent/EP4057710A4/en
Publication of WO2021090444A1 publication Critical patent/WO2021090444A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/085—Access point devices with remote components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/12—Interfaces between hierarchically different network devices between access points and access point controllers

Definitions

  • 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 is a Next Generation-Radio Access Network 20 (hereinafter, NG-RAN20, and a terminal 200 (hereinafter, User Equipment 200, hereinafter,).
  • NG-RAN20 Next Generation-Radio Access Network 20
  • UE200 User Equipment 200
  • O-RU120 may be called an O-RAN radio unit.
  • the O-RU120 is a logical node that hosts the PHY-Low layer and RF processing based on the low-level functional division.
  • O-CU is an abbreviation for O-RANControlUnit, which is a logical node that hosts PacketDataConvergenceProtocol (PDCP), RadioResourceControl (RRC), ServiceDataAdaptationProtocol (SDAP), and other control functions. ..
  • PDCP PacketDataConvergenceProtocol
  • RRC RadioResourceControl
  • SDAP ServiceDataAdaptationProtocol
  • Shared Cell configuration As described above, in O-RAN, there is also a stationing method in which one cell is configured by multiple O-RUs, a configuration using a device (FHM: Fronthaul Multiplexing) that bundles O-RUs, and continuous operation. A configuration for connecting O-RUs (cascade configuration) is being studied. Collectively, these are called Shared Cell.
  • FHM Fronthaul Multiplexing
  • min and max may mean the minimum and maximum values of the propagation delay.
  • the propagation delay may be referred to by another name, for example, transmission delay, transmission time, delay time, transfer delay, delay, or the like.
  • the parameter control unit 115 may determine the capacity information set for the intermediate device 130 based on the delay time (corresponding to T34) between the intermediate device 130 and the O-DU 110.
  • Ta3_max and Ta3_min are defined as device-specific capabilities, the size of the transmission window cannot be set according to the station placement, and as a result, the FH signal may not be transmitted / received correctly.
  • the intermediate device 130 synthesizes the signal of the pre-stage device (O-RU) in UL, it is necessary to wait for the signal of the pre-stage device (O-RU).
  • the FH delay of the O-DU to the intermediate device, the intermediate device to the intermediate device, and the intermediate device to the O-RU changes depending on the station of the intermediate device 130, so that the required waiting time is the intermediate device 130. Depends on the station.
  • FIGS. 3B and 3C an example in which FHM or O-RU (cascade connection) is applied as the intermediate device 130 is separately shown, but on the same FH, FHM and O-RU by cascade connection may be configured in a complex manner.
  • FHM or O-RU cascade connection
  • the configuration of the FH according to the O-RAN specifications has been described, but the FH does not necessarily have to comply with the O-RAN specifications.
  • the FH does not necessarily have to comply with the O-RAN specifications.
  • at least some of the O-DU110, O-RU120 and intermediate device 130 may comply with the FH specifications specified in 3GPP.
  • FIG. 13 is a diagram showing an example of the hardware configuration of the device.
  • 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.
  • 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 the 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).
  • 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. 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 Multiple Access (OFDM) symbol, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol, etc.) in the time domain. Slots may be unit of time based on numerology.
  • OFDM Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • 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.
  • 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.
  • 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.
  • 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”.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
PCT/JP2019/043692 2019-11-07 2019-11-07 通信装置 Ceased WO2021090444A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PCT/JP2019/043692 WO2021090444A1 (ja) 2019-11-07 2019-11-07 通信装置
CN201980101871.3A CN114731595B (zh) 2019-11-07 2019-11-07 通信装置
US17/755,771 US12349088B2 (en) 2019-11-07 2019-11-07 Communication device
JP2021554505A JP7407833B2 (ja) 2019-11-07 2019-11-07 通信装置
EP19951365.6A EP4057710A4 (en) 2019-11-07 2019-11-07 COMMUNICATION DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/043692 WO2021090444A1 (ja) 2019-11-07 2019-11-07 通信装置

Publications (1)

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WO2021090444A1 true WO2021090444A1 (ja) 2021-05-14

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PCT/JP2019/043692 Ceased WO2021090444A1 (ja) 2019-11-07 2019-11-07 通信装置

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US (1) US12349088B2 (https=)
EP (1) EP4057710A4 (https=)
JP (1) JP7407833B2 (https=)
CN (1) CN114731595B (https=)
WO (1) WO2021090444A1 (https=)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210385686A1 (en) * 2020-06-03 2021-12-09 Mavenir Systems, Inc. Traffic timing control for an open radio access network in a cloud radio access network system
WO2022263499A1 (en) * 2021-06-16 2022-12-22 Nokia Solutions And Networks Oy Transmitting data via a fronthaul interface with adjustable timing
US12464381B2 (en) 2021-07-30 2025-11-04 Samsung Electronics Co., Ltd. Device and method for fronthaul transmission in wireless communication system

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WO2022108393A1 (ko) * 2020-11-20 2022-05-27 한국전자통신연구원 프론트홀 인터페이스를 사용하는 통신을 위한 방법 및 장치
WO2025080033A1 (ko) * 2023-10-12 2025-04-17 주식회사 쏠리드랩스 통신 시스템에서 혼합 뉴머럴로지의 사용을 지원하기 위한 방법 및 그 장치

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210385686A1 (en) * 2020-06-03 2021-12-09 Mavenir Systems, Inc. Traffic timing control for an open radio access network in a cloud radio access network system
US12279156B2 (en) * 2020-06-03 2025-04-15 Mavenir Systems, Inc. Traffic timing control for an open radio access network in a cloud radio access network system
WO2022263499A1 (en) * 2021-06-16 2022-12-22 Nokia Solutions And Networks Oy Transmitting data via a fronthaul interface with adjustable timing
US12464381B2 (en) 2021-07-30 2025-11-04 Samsung Electronics Co., Ltd. Device and method for fronthaul transmission in wireless communication system

Also Published As

Publication number Publication date
US20220408390A1 (en) 2022-12-22
EP4057710A4 (en) 2023-07-12
JPWO2021090444A1 (https=) 2021-05-14
CN114731595B (zh) 2024-09-10
JP7407833B2 (ja) 2024-01-04
US12349088B2 (en) 2025-07-01
EP4057710A1 (en) 2022-09-14
CN114731595A (zh) 2022-07-08

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