KR20150080549A - 시분할 듀플렉스 시스템들에서 타이밍 복원을 용이하게 하기 위한 매커니즘 - Google Patents

시분할 듀플렉스 시스템들에서 타이밍 복원을 용이하게 하기 위한 매커니즘 Download PDF

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Publication number
KR20150080549A
KR20150080549A KR1020157013588A KR20157013588A KR20150080549A KR 20150080549 A KR20150080549 A KR 20150080549A KR 1020157013588 A KR1020157013588 A KR 1020157013588A KR 20157013588 A KR20157013588 A KR 20157013588A KR 20150080549 A KR20150080549 A KR 20150080549A
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KR
South Korea
Prior art keywords
receiver
timing
desc
tdd
downstream
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KR1020157013588A
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English (en)
Korean (ko)
Inventor
마시모 솔바라
윌리암 에드워드 주니어 케슬러
피터 켈러
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이카노스 커뮤니케이션스, 인크.
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Publication of KR20150080549A publication Critical patent/KR20150080549A/ko
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2656—Frame synchronisation, e.g. packet synchronisation, time division duplex [TDD] switching point detection or subframe synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • 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
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1438—Negotiation of transmission parameters prior to communication
    • 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
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L2007/045—Fill bit or bits, idle words
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H04L27/26134—Pilot insertion in the transmitter chain, e.g. pilot overlapping with data, insertion in time or frequency domain
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H04L5/008—Timing of allocation once only, on installation

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Bidirectional Digital Transmission (AREA)
KR1020157013588A 2012-10-29 2013-10-29 시분할 듀플렉스 시스템들에서 타이밍 복원을 용이하게 하기 위한 매커니즘 Withdrawn KR20150080549A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201261719784P 2012-10-29 2012-10-29
US61/719,784 2012-10-29
PCT/US2013/067247 WO2014070728A1 (en) 2012-10-29 2013-10-29 Mechanism to facilitate timing recovery in time division duplex systems

Publications (1)

Publication Number Publication Date
KR20150080549A true KR20150080549A (ko) 2015-07-09

Family

ID=50547110

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020157013588A Withdrawn KR20150080549A (ko) 2012-10-29 2013-10-29 시분할 듀플렉스 시스템들에서 타이밍 복원을 용이하게 하기 위한 매커니즘

Country Status (6)

Country Link
US (1) US20140119250A1 (https=)
EP (1) EP2912792A4 (https=)
JP (1) JP2016507913A (https=)
KR (1) KR20150080549A (https=)
CN (1) CN104813601A (https=)
WO (1) WO2014070728A1 (https=)

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US8731542B2 (en) 2005-08-11 2014-05-20 Seven Networks International Oy Dynamic adjustment of keep-alive message intervals in a mobile network
US20140161000A1 (en) * 2012-12-10 2014-06-12 Futurewei Technologies, Inc. Timing offset correction in a tdd vectored system
EP2949114B1 (en) * 2013-03-11 2017-02-01 Huawei Technologies Co., Ltd. Control and management of power saving link states in vectored tdd transmission systems
CN107395474A (zh) * 2017-09-06 2017-11-24 嘉兴佳利电子有限公司 一种一体化G.fast反向供电兼容xDSL的FTTx铜缆入户装置
CN109756318B (zh) * 2017-11-06 2021-09-07 华为技术有限公司 导频信息传输方法及相关设备
CN113037428B (zh) * 2019-12-09 2022-01-25 大唐移动通信设备有限公司 一种对数据流程的处理方法及装置
EP3940972B1 (en) * 2020-07-16 2024-07-10 Socionext Inc. Communication systems, apparatuses and methods
US12040802B1 (en) * 2023-03-15 2024-07-16 Realtek Semiconductor Corporation Digital subscriber line communication device and timing recovery method thereof

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US6724849B1 (en) * 2000-02-29 2004-04-20 Centillium Communications, Inc. Method and apparatus for timing recovery in ADSL transceivers under a TCM-ISDN crosstalk environment
US6546043B1 (en) * 2000-06-29 2003-04-08 Trw Inc. Method and apparatus for cancellation of multiple access interference in a code division multiple access (CDMA) communication system
SE522709C2 (sv) 2002-07-05 2004-03-02 Elekta Ab Strålterapiapparat med flera uppsättningar hål i kollimatorhjälmen där förskjutbara plattor bestämmer vilka håluppsättningar som strålkällorna ska använda, samt metod att variera strålfältet
US20040136405A1 (en) * 2002-11-14 2004-07-15 Guozhu Long Obtaining and maintaining TTR synchronization during DSL transceiver channel discovery phase in presence of TCM-ISDN noise
US20050047496A1 (en) * 2003-08-13 2005-03-03 Mcintire William K. Modem with pilot symbol synchronization
US7899921B2 (en) * 2004-12-08 2011-03-01 Microsoft Corporation Verifying and maintaining connection liveliness in a reliable messaging for web services environment
WO2006136660A1 (en) * 2005-06-21 2006-12-28 Seven Networks International Oy Maintaining an ip connection in a mobile network
US8731542B2 (en) * 2005-08-11 2014-05-20 Seven Networks International Oy Dynamic adjustment of keep-alive message intervals in a mobile network
US20070233855A1 (en) * 2006-04-03 2007-10-04 International Business Machines Corporation Adaptible keepalive for enterprise extenders
AU2008259448B2 (en) * 2007-06-04 2013-11-28 Samsung Electronics Co., Ltd. System and method for scheduling and transferring data through a transmission system
CN100581272C (zh) * 2007-11-29 2010-01-13 福建星网锐捷网络有限公司 堆叠交换机系统及堆叠交换机系统的保活方法
US8477811B2 (en) * 2008-02-02 2013-07-02 Qualcomm Incorporated Radio access network (RAN) level keep alive signaling
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US20150163725A1 (en) * 2013-12-06 2015-06-11 Qualcomm Incorporated Method and apparatus for inter radio access technology (irat) bplmn search

Also Published As

Publication number Publication date
JP2016507913A (ja) 2016-03-10
CN104813601A (zh) 2015-07-29
US20140119250A1 (en) 2014-05-01
EP2912792A1 (en) 2015-09-02
WO2014070728A8 (en) 2015-06-11
EP2912792A4 (en) 2016-06-29
WO2014070728A1 (en) 2014-05-08

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PA0105 International application

Patent event date: 20150522

Patent event code: PA01051R01D

Comment text: International Patent Application

PG1501 Laying open of application
PC1203 Withdrawal of no request for examination
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid