[go: up one dir, main page]

MX2012003585A - Estacion de retransmision, metodo de retransmision, sistema de radiocomunicacion, y aparato de radiocomunicacion. - Google Patents

Estacion de retransmision, metodo de retransmision, sistema de radiocomunicacion, y aparato de radiocomunicacion.

Info

Publication number
MX2012003585A
MX2012003585A MX2012003585A MX2012003585A MX2012003585A MX 2012003585 A MX2012003585 A MX 2012003585A MX 2012003585 A MX2012003585 A MX 2012003585A MX 2012003585 A MX2012003585 A MX 2012003585A MX 2012003585 A MX2012003585 A MX 2012003585A
Authority
MX
Mexico
Prior art keywords
radio communication
relay
link
modulation method
relay node
Prior art date
Application number
MX2012003585A
Other languages
English (en)
Inventor
Ryota Kimura
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of MX2012003585A publication Critical patent/MX2012003585A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15557—Selecting relay station operation mode, e.g. between amplify and forward mode, decode and forward mode or FDD - and TDD mode
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • 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
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L2001/0092—Error control systems characterised by the topology of the transmission link
    • H04L2001/0097—Relays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • 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
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

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

Abstract

Un nodo de retransmisión en una red de comunicación móvil para retransmitir comunicaciones entre una estación base y una terminal móvil. El nodo de retransmisión incluye una primera unidad de comunicación que se comunica con la estación base mediante un enlace de trayecto inverso utilizando por lo menos uno de un primer método de modulación y un primer método de multiplexión, una segunda unidad de comunicación que se comunica con la terminal móvil mediante un enlace de acceso utilizando por lo menos uno de un segundo método de modulación y un segundo método de multiplexión. El nodo de retransmisión también incluye una unidad de control de comunicación que selecciona por lo menos uno del primer método de modulación y el primer método de multiplexión, o selecciona por lo menos uno del segundo método de modulación y el segundo método de multiplexión basándose en una característica de un enlace, un tipo de enlace o un tipo de datos incluido en una señal de comunicación.
MX2012003585A 2009-10-01 2010-09-21 Estacion de retransmision, metodo de retransmision, sistema de radiocomunicacion, y aparato de radiocomunicacion. MX2012003585A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009229480A JP5482068B2 (ja) 2009-10-01 2009-10-01 中継局、中継方法、無線通信システム及び無線通信装置
PCT/JP2010/005715 WO2011039970A1 (en) 2009-10-01 2010-09-21 Relay station, relay method, radio communication system, and radio communication apparatus

Publications (1)

Publication Number Publication Date
MX2012003585A true MX2012003585A (es) 2012-04-19

Family

ID=43825823

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2012003585A MX2012003585A (es) 2009-10-01 2010-09-21 Estacion de retransmision, metodo de retransmision, sistema de radiocomunicacion, y aparato de radiocomunicacion.

Country Status (13)

Country Link
US (3) US9184825B2 (es)
EP (1) EP2471304B1 (es)
JP (1) JP5482068B2 (es)
KR (1) KR20120090994A (es)
CN (1) CN102550076A (es)
AU (1) AU2010302182A1 (es)
BR (1) BR112012006659A2 (es)
CA (1) CA2774684A1 (es)
IN (1) IN2012DN02530A (es)
MX (1) MX2012003585A (es)
RU (1) RU2012111261A (es)
WO (1) WO2011039970A1 (es)
ZA (1) ZA201202157B (es)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5482068B2 (ja) 2009-10-01 2014-04-23 ソニー株式会社 中継局、中継方法、無線通信システム及び無線通信装置
US10530430B2 (en) * 2011-04-24 2020-01-07 Avago Technologies International Sales Pte. Limited Doppler midamble signaling for wireless communications
JP5736998B2 (ja) * 2011-06-20 2015-06-17 日本電気株式会社 リピータ装置およびリピータ装置の中継制御方法
WO2012177190A1 (en) * 2011-06-20 2012-12-27 Telefonaktiebolaget Lm Ericsson (Publ) Selective relaying in a network node
CN102843701B (zh) * 2011-06-21 2018-02-13 爱立信(中国)通信有限公司 时分双工通信网络中的中继部署方法和设备
JP2013030908A (ja) * 2011-07-27 2013-02-07 Kyocera Corp 無線中継装置および無線通信方法
US8649307B1 (en) 2011-08-02 2014-02-11 Xilinx, Inc. Mobile communication with modes for single carrier and spatial and frequency multiplexing
US9265047B2 (en) 2012-04-04 2016-02-16 Qualcomm Incorporated Procedures to activate opportunistic relays
CN102739601B (zh) * 2012-07-19 2015-07-22 哈尔滨工业大学 Td lte-a系统中移动终端与中继节点混合载波协作通信方法
JPWO2014027496A1 (ja) * 2012-08-13 2016-07-25 ソニー株式会社 通信制御装置及び通信制御方法
JP5689101B2 (ja) * 2012-10-24 2015-03-25 ソフトバンクモバイル株式会社 フェムトセル基地局、通信品質確認方法、および通信品質確認プログラム
US9419750B2 (en) 2013-06-05 2016-08-16 Texas Instruments Incorporated NLOS wireless backhaul uplink communication
WO2014198519A1 (en) * 2013-06-11 2014-12-18 Deutsche Telekom Ag Method for enhancing machine type communication between a mobile communication network on the one hand, and a plurality of machine type communication devices on the other hand
EP3300264B1 (en) 2013-06-25 2021-02-24 Andrew Wireless Systems GmbH Repeater system
US9210690B2 (en) 2013-08-08 2015-12-08 Blackberry Limited Method and system for initial synchronization and collision avoidance in device to device communications without network coverage
US9735930B2 (en) * 2014-05-02 2017-08-15 Telefonaktiebolaget Lm Ericsson (Publ) System and method using a secondary network node for handling packet retransmissions
DE102014221956A1 (de) * 2014-10-28 2016-05-12 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung, Fahrzeug, Verfahren und Computerprogramm für einen Relay-Sendeempfänger und eine Netzwerkkomponente
CN107926031B (zh) * 2015-08-21 2022-02-22 株式会社Ntt都科摩 用户终端、无线基站以及无线通信方法
US9621418B2 (en) * 2015-09-11 2017-04-11 T-Mobile U.S.A., Inc. Automatic network node relay link configuration tool
US11139884B1 (en) * 2015-12-08 2021-10-05 Sprint Spectrum L.P. Differential distribution of wireless relay backhaul traffic among carriers based on whether traffic is control-plane with relay base station or rather user-plane with relay-served device
JP2019071505A (ja) * 2016-03-02 2019-05-09 シャープ株式会社 制御局装置、通信方法および通信システム
WO2018026318A1 (en) * 2016-08-03 2018-02-08 Telefonaktiebolaget L M Ericsson (Publ) Radio node, wireless device, access network node, and methods performed therein
CN109845147B (zh) * 2016-11-03 2021-04-16 Oppo广东移动通信有限公司 用于传输上行信号的方法和装置
CN110089086B (zh) * 2016-12-27 2021-02-12 华为技术有限公司 一种中继传输的方法、相关设备及系统
US10644827B2 (en) * 2017-04-06 2020-05-05 Qualcomm Incorporated Systems and methods for dynamic switching between waveforms on downlink
US10419077B1 (en) 2018-03-28 2019-09-17 Google Llc Wireless communication via a mobile relay
WO2022194339A1 (en) * 2021-03-15 2022-09-22 Telefonaktiebolaget Lm Ericsson (Publ) Network node and method for sustaining ultra-reliable communication in wireless communication network
CN115707147A (zh) * 2021-08-06 2023-02-17 中兴通讯股份有限公司 无线网络通信方法、电子设备及存储介质
WO2025032248A1 (en) * 2023-08-10 2025-02-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Relays adapting signal representations
GB2639860A (en) * 2024-03-25 2025-10-08 Nokia Technologies Oy Method, apparatus and computer program

Family Cites Families (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5978650A (en) 1997-01-21 1999-11-02 Adc Telecommunications, Inc. System and method for transmitting data
GB9715510D0 (en) 1997-07-24 1997-10-01 F2 Chemicals Limited Preparation of fluorinated compounds
EP1031196B1 (en) 1997-11-10 2007-10-10 QUALCOMM Incorporated Access channel slot sharing
JPH11331063A (ja) * 1998-05-15 1999-11-30 Toshiba Corp マルチモード移動通信中継装置
EP1203458A4 (en) * 1999-08-10 2002-11-05 Airnet Communications Corp TRANSLATIONAL AMPLIFIER SYSTEM WITH IMPROVED EFFICIENCY OF THE CONNECTION BETWEEN AMPLIFIER AND BASE STATION
US7215964B2 (en) * 2003-06-06 2007-05-08 Nokia Corporation Asymmetric radio access network, and associated method, for communicating data at high data rates
JP4676722B2 (ja) 2004-07-22 2011-04-27 テイ・エス テック株式会社 荷重センサの取付構造
KR20070068350A (ko) 2004-09-29 2007-06-29 마츠시타 덴끼 산교 가부시키가이샤 무선 통신 장치 및 무선 통신 방법
EP1852986B1 (en) 2005-03-14 2013-01-16 Panasonic Corporation Wireless communication system
WO2006106766A1 (ja) 2005-03-31 2006-10-12 Matsushita Electric Industrial Co., Ltd. 無線通信装置および無線通信方法
US8077692B2 (en) * 2005-05-20 2011-12-13 Qualcomm Incorporated Enhanced frequency division multiple access for wireless communication
JP4611842B2 (ja) 2005-08-24 2011-01-12 シャープ株式会社 リピータ装置
US8396041B2 (en) * 2005-11-08 2013-03-12 Microsoft Corporation Adapting a communication network to varying conditions
UA94482C2 (ru) * 2006-10-03 2011-05-10 Квелкомм Інкорпорейтед Передача синхронизации в системе беспроводной связи
JP5251512B2 (ja) * 2006-10-25 2013-07-31 富士通株式会社 無線基地局，中継局，無線通信システムおよび無線通信方法
CN101001472A (zh) * 2007-01-12 2007-07-18 清华大学 一种双向异构广播网
CN101026574B (zh) * 2007-01-16 2010-08-25 华为技术有限公司 无线通信系统、固定台设备及信号发送方法
GB0700801D0 (en) * 2007-01-16 2007-02-21 Nortel Networks Ltd Shared radio backhaul system
JP2008211345A (ja) * 2007-02-23 2008-09-11 Matsushita Electric Works Ltd 無線中継装置
KR100973670B1 (ko) * 2007-03-21 2010-08-04 삼성전자주식회사 중계 방식의 광대역 무선통신 시스템에서 중계 링크 운용장치 및 방법
US20090029645A1 (en) * 2007-07-25 2009-01-29 Teenay Wireless, Inc. Multi-Tier Backhaul Network System with Traffic Differentiation and Advanced Processing Capabilities and Methods Therefor
US8228853B2 (en) * 2008-02-01 2012-07-24 Qualcomm Incorporated Serving base station selection in a wireless communication network
US20090203310A1 (en) * 2008-02-12 2009-08-13 Lucent Technologies Inc. Superposition transmission and detection of access and backhaul signals
US20110097993A1 (en) * 2008-06-12 2011-04-28 Sharp Kabushiki Kaisha Relay apparatus, communication system and relay method
US8798526B2 (en) * 2008-06-27 2014-08-05 Qualcomm Incorporated Method and apparatus for selecting and processing signals from a source station and relay stations
KR101511786B1 (ko) * 2008-06-30 2015-04-14 엘지전자 주식회사 주파수 분할 이중 중계국을 포함하는 무선통신 시스템 및 이 무선통신 시스템에서의 무선자원의 이용 방법
US9078270B2 (en) * 2008-07-03 2015-07-07 Qualcomm Incorporated Opportunistic relay scheduling in wireless communications
US9374746B1 (en) * 2008-07-07 2016-06-21 Odyssey Wireless, Inc. Systems/methods of spatial multiplexing
US8509324B2 (en) * 2008-07-08 2013-08-13 Qualcomm Incorporated Methods and systems for reducing PAPR of an OFDM signal
US8509161B2 (en) * 2008-08-11 2013-08-13 Sharp Kabushiki Kaisha Systems and methods for OFDMA and SC-FDMA switching
US8548383B2 (en) * 2008-08-27 2013-10-01 Qualcomm Incorporated Power spectrum density control for wireless communications
US9077531B2 (en) * 2008-09-25 2015-07-07 Lg Electronics Inc. Hybrid automatic repeat request and channel information feedback for relay
KR101215690B1 (ko) * 2008-10-31 2012-12-26 엘지전자 주식회사 무선통신 시스템에서 harq 수행 방법 및 장치
US8514768B2 (en) * 2008-12-11 2013-08-20 Lg Electronics Inc. Method and apparatus for transmitting reference signal performed by relay station in wireless communication system
US8264946B2 (en) * 2008-12-31 2012-09-11 Qualcomm Incorporated Methods and systems for PAPR reduction in SC-FDMA systems
CN105281876B (zh) * 2009-02-17 2019-04-19 Lg电子株式会社 在中继站与基站之间发送/接收数据的方法
EP2400674A4 (en) * 2009-02-18 2017-03-22 LG Electronics Inc. Signal transmitting/receiving method for a relay node, and relay node using the method
KR101600486B1 (ko) * 2009-05-29 2016-03-07 엘지전자 주식회사 중계기 백홀 상향링크에서 제어 정보의 전송 방법 및 장치
US8761104B2 (en) * 2009-06-18 2014-06-24 Nokia Siemens Networks Oy Method and apparatus for transmitting load information among nodes in a radio system
US8774253B2 (en) 2009-07-28 2014-07-08 Panasonic Corporation Wireless relay device and wireless relay method
CN102598818B (zh) * 2009-08-14 2016-06-01 诺基亚技术有限公司 在中继系统中指示下行链路/上行链路回程子帧配置的灵活方式
CN102484797A (zh) 2009-09-18 2012-05-30 索尼公司 中继站、中继方法和无线通信设备
US8670396B2 (en) * 2009-09-29 2014-03-11 Qualcomm Incorporated Uplink control channel resource allocation for transmit diversity
JP5482068B2 (ja) 2009-10-01 2014-04-23 ソニー株式会社 中継局、中継方法、無線通信システム及び無線通信装置
EP2697776A4 (en) * 2011-04-11 2015-06-10 Intel Corp IMAGE PROCESSING BASED ON INTERESTING OBJECTS

Also Published As

Publication number Publication date
US20160037358A1 (en) 2016-02-04
CN102550076A (zh) 2012-07-04
BR112012006659A2 (pt) 2016-05-03
ZA201202157B (en) 2012-10-31
JP5482068B2 (ja) 2014-04-23
US20120176962A1 (en) 2012-07-12
EP2471304A1 (en) 2012-07-04
US10785659B2 (en) 2020-09-22
KR20120090994A (ko) 2012-08-17
EP2471304A4 (en) 2014-07-02
AU2010302182A1 (en) 2012-04-19
US20190053070A1 (en) 2019-02-14
US10136334B2 (en) 2018-11-20
EP2471304B1 (en) 2018-01-17
US9184825B2 (en) 2015-11-10
IN2012DN02530A (es) 2015-08-28
CA2774684A1 (en) 2011-04-07
WO2011039970A1 (en) 2011-04-07
RU2012111261A (ru) 2013-09-27
JP2011077987A (ja) 2011-04-14

Similar Documents

Publication Publication Date Title
MX2012003585A (es) Estacion de retransmision, metodo de retransmision, sistema de radiocomunicacion, y aparato de radiocomunicacion.
WO2011052964A3 (en) Method for transmitting and receiving signal of relay in radio communication system supporting multiple carriers
UA94407C2 (ru) Способ и устройство для беспроводной связи с несколькими несущими
EP3771279A4 (en) PROCEDURE FOR SLOT FORMAT FOR BACKHAUL AND ACCESS CONNECTION IN A WIRELESS COMMUNICATION SYSTEM AND DEVICE WITH IT
MY156161A (en) Mobile station apparatus and method for transmitting signals in wireless communication system
WO2010087687A3 (en) Apparatus and method for relaying multiple links in a communication system
WO2010137926A3 (ko) 중계기 백홀 상향링크에서 제어 정보의 전송 방법 및 장치
WO2010025100A3 (en) Method and apparatus for direct reliable link access
NZ597409A (en) A communication system with a plurality of radio bearers with predetermined Quality of Service (QoS) set for different mobile stations and a relay node with a priority control processing unit
BRPI0410629A (pt) método de executar comunicação em uma rede de comunicação sem fio de dois saltos, estação de retransmissão, sistema adaptado para comunicação, receptor, e, estação base, e, estação móvel
WO2011002176A3 (en) Method for prioritizing operation of relay node in a wireless communication system and apparatus for the same
WO2011132988A3 (en) Method and apparatus for channel estimation for radio link between a base station and a relay station
WO2011040763A3 (ko) 무선 통신 시스템에서 릴레이 링크 셋업 방법 및 장치
UA92359C2 (ru) Способ и устройство для одновременной связи с помощью множества систем беспроводной связи
WO2008084371A3 (en) Power control and channel reuse techniques for wireless relay networks
WO2009058742A3 (en) Synchronized multi-link transmission in an arq-enabled multi-hop wireless network
GB2468463A (en) Techniques for optimal location and configuration of infrastructure relay nodes in wireless networks
MX2010008321A (es) Mitigacion de interferencia para canales control en una red de comunicaciones inalambricas.
WO2008092908A3 (en) Method, system, relay station and base station for transmitting data in mobile communication
WO2014072850A3 (en) Multiple outer loop link adaptation
WO2009113834A3 (en) Method and apparatus for transmitting data in dls wireless network
TW200704244A (en) Physical channel wireless resource assignment method in upward link and transmitter for mobile unit
WO2010101345A3 (en) Signal transmission method and system for transmitting signal by using interference control method and/or transmission power control method
PL1849260T3 (pl) Metoda i system podziemnej radiowej transmisji danych między co najmniej jedną stacją przenośną a jedną siecią stacjonarną za pośrednictwem sieci radiowej
WO2013025058A3 (ko) 기지국 협력 무선 통신 시스템에서 사운딩 참조 신호를 송신하는 방법 및 이를 위한 장치

Legal Events

Date Code Title Description
FA Abandonment or withdrawal