IN2014CN04776A - - Google Patents

Info

Publication number
IN2014CN04776A
IN2014CN04776A IN4776CHN2014A IN2014CN04776A IN 2014CN04776 A IN2014CN04776 A IN 2014CN04776A IN 4776CHN2014 A IN4776CHN2014 A IN 4776CHN2014A IN 2014CN04776 A IN2014CN04776 A IN 2014CN04776A
Authority
IN
India
Prior art keywords
scc
network element
timing
synchronization
synchronize
Prior art date
Application number
Inventor
Jelena M Damnjanovic
Peter Gaal
Wanshi Chen
Aleksandar Damnjanovic
Masato Kitazoe
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of IN2014CN04776A publication Critical patent/IN2014CN04776A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • 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
    • H04L27/2662—Symbol 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
    • H04L27/2689—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation
    • 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), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H04W74/0838—Random access procedures, e.g. with 4-step access using contention-free random access [CFRA]

Landscapes

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

Abstract

Methods and apparatus are described herein for synchronizing timing when using a secondary component carrier (SCC) in a carrier aggregated wireless network. A user equipment (UE) may determine that it is out of synchronization with respect to an SCC used to communicate with a network element. The UE may inform the network element of the out of synchronization status and may perform a random access procedure to synchronize the timing.
IN4776CHN2014 2012-01-17 2013-01-15 IN2014CN04776A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201261587556P 2012-01-17 2012-01-17
US13/740,886 US9094988B2 (en) 2012-01-17 2013-01-14 Method and apparatus for performing random access on a secondary carrier
PCT/US2013/021561 WO2013109531A1 (en) 2012-01-17 2013-01-15 Method and apparatus for performing random access on a secondary carrier

Publications (1)

Publication Number Publication Date
IN2014CN04776A true IN2014CN04776A (en) 2015-09-18

Family

ID=48779921

Family Applications (1)

Application Number Title Priority Date Filing Date
IN4776CHN2014 IN2014CN04776A (en) 2012-01-17 2013-01-15

Country Status (9)

Country Link
US (1) US9094988B2 (en)
EP (1) EP2805554B1 (en)
JP (1) JP5992538B2 (en)
KR (1) KR101627115B1 (en)
CN (1) CN104067676B (en)
ES (1) ES2763445T3 (en)
HU (1) HUE047127T2 (en)
IN (1) IN2014CN04776A (en)
WO (1) WO2013109531A1 (en)

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US9590878B2 (en) * 2013-01-16 2017-03-07 Qualcomm Incorporated Channel state information and adaptive modulation and coding design for long-term evolution machine type communications
US9307508B2 (en) * 2013-04-29 2016-04-05 Google Technology Holdings LLC Systems and methods for syncronizing multiple electronic devices
CN104519589A (en) 2013-09-26 2015-04-15 中兴通讯股份有限公司 Random access method and device
WO2015173137A1 (en) 2014-05-12 2015-11-19 Telefonaktiebolaget L M Ericsson (Publ) Handling timing differences in timing advance groups in a communication device
EP3216289B1 (en) * 2014-11-07 2020-08-05 Nokia Solutions and Networks Oy Transmission of discovery reference signals on unlicensed carrier in a wireless network
US10219256B2 (en) * 2015-01-13 2019-02-26 Qualcomm Incorporated Control information feedback for eCC on PCell
JP2018507629A (en) * 2015-01-30 2018-03-15 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． Method, terminal, and base station for asynchronous uplink transmission
US10524236B2 (en) * 2015-03-23 2019-12-31 Qualcomm Incorporated Uplink transmission control with clear channel assessment
US10827485B2 (en) * 2015-04-17 2020-11-03 Qualcomm Incorporated Narrowband dependent subframe availability for MTC
US11696218B2 (en) 2016-10-21 2023-07-04 Qualcomm Incorporated Multiplexing initial access and data transmissions in assisted millimeter wave systems
US20180152941A1 (en) * 2016-11-30 2018-05-31 Mediatek Inc. Methods for enhancing performance of a communications apparatus and communications apparatus utilizing the same
KR20190119582A (en) * 2017-02-03 2019-10-22 아이디에이씨 홀딩스, 인크. Uplink Beam Management
CN107820729B (en) * 2017-07-14 2021-05-28 达闼机器人有限公司 Connection reestablishment method and device, terminal and storage medium
US10965360B2 (en) * 2017-08-23 2021-03-30 Qualcomm Incorporated Methods and apparatus related to beam refinement

Family Cites Families (15)

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Publication number Priority date Publication date Assignee Title
CN102119563B (en) * 2008-08-11 2014-09-03 株式会社Ntt都科摩 User device and method for determining downlink synchronization for user device
KR101611271B1 (en) * 2008-10-29 2016-04-26 엘지전자 주식회사 An uplink random access method under a carrier aggregation environment
AR076115A1 (en) 2009-03-12 2011-05-18 Interdigital Patent Holdings METHOD AND APPLIANCE FOR MONITORING A RADIAL LINK FAILURE
EP2244515A1 (en) 2009-04-23 2010-10-27 Panasonic Corporation Logical channel prioritization procedure for generating multiple uplink transport blocks
BRPI0924662B8 (en) * 2009-04-24 2018-12-11 Huawei Tech Co Ltd uplink sync method and device
CN102014476B (en) * 2009-10-10 2013-09-04 电信科学技术研究院 Uplink synchronization method, system and equipment
US8804633B2 (en) 2009-11-05 2014-08-12 Innovative Sonic Corporation Method and apparatus to trigger a random access procedure for carrier aggregation in a wireless communication network
US9426765B2 (en) * 2010-01-11 2016-08-23 Acer Incorporated Method of handling uplink synchronization and related communication device
JP5278350B2 (en) * 2010-02-25 2013-09-04 富士通株式会社 Base station apparatus, identifier assigning method, and identifier assigning program
US8917593B2 (en) 2010-03-18 2014-12-23 Qualcomm Incorporated Random access design in a multiple component carrier communication network
US8666398B2 (en) * 2010-04-13 2014-03-04 Qualcomm Incorporated Random access procedure enhancements for heterogeneous networks
TWI459847B (en) 2011-04-01 2014-11-01 Mediatek Inc Methods of managing and maintaining multiple timing advance
ES2754035T3 (en) * 2011-04-05 2020-04-15 Samsung Electronics Co Ltd Efficient activation of carriers in carrier aggregation-based wireless communication systems
US9642161B2 (en) 2011-05-11 2017-05-02 Nokia Solutions And Networks Oy Cross-scheduling for random access response
US8395985B2 (en) * 2011-07-25 2013-03-12 Ofinno Technologies, Llc Time alignment in multicarrier OFDM network

Also Published As

Publication number Publication date
EP2805554A1 (en) 2014-11-26
WO2013109531A1 (en) 2013-07-25
EP2805554B1 (en) 2019-09-25
CN104067676B (en) 2019-07-16
ES2763445T3 (en) 2020-05-28
KR101627115B1 (en) 2016-06-03
KR20140116509A (en) 2014-10-02
JP5992538B2 (en) 2016-09-14
JP2015503888A (en) 2015-02-02
CN104067676A (en) 2014-09-24
US20130182688A1 (en) 2013-07-18
US9094988B2 (en) 2015-07-28
HUE047127T2 (en) 2020-04-28

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