WO2007117328A3 - Pilot signal in an fdma communication system - Google Patents

Pilot signal in an fdma communication system Download PDF

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Publication number
WO2007117328A3
WO2007117328A3 PCT/US2006/062389 US2006062389W WO2007117328A3 WO 2007117328 A3 WO2007117328 A3 WO 2007117328A3 US 2006062389 W US2006062389 W US 2006062389W WO 2007117328 A3 WO2007117328 A3 WO 2007117328A3
Authority
WO
WIPO (PCT)
Prior art keywords
sequence
point
subcarriers
communication system
domain sequence
Prior art date
Application number
PCT/US2006/062389
Other languages
French (fr)
Other versions
WO2007117328A2 (en
Inventor
James W Mccoy
Original Assignee
Freescale Semiconductor Inc
James W Mccoy
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 Freescale Semiconductor Inc, James W Mccoy filed Critical Freescale Semiconductor Inc
Priority to KR1020137020287A priority Critical patent/KR101531228B1/en
Priority to KR1020137009265A priority patent/KR101424014B1/en
Priority to EP06850332.5A priority patent/EP1980035B1/en
Priority to KR1020087017593A priority patent/KR101273230B1/en
Priority to KR1020147036438A priority patent/KR101588994B1/en
Priority to JP2008551277A priority patent/JP5123208B2/en
Priority to KR1020157017011A priority patent/KR101610735B1/en
Publication of WO2007117328A2 publication Critical patent/WO2007117328A2/en
Publication of WO2007117328A3 publication Critical patent/WO2007117328A3/en

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
    • H04B7/204—Multiple access
    • H04B7/208—Frequency-division multiple access [FDMA]
    • 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
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/04—Frequency-transposition arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/12—Arrangements for reducing cross-talk between channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • 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
    • 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
    • H04L27/2669—Details of algorithms characterised by the domain of operation
    • H04L27/2672—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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Abstract

Methods (500, 800) and corresponding systems (100, 200, 300, 400, 900) for generating a pilot symbol (330) include providing an M-point parallel transform sequence that is a discrete Fourier transform of a CAZAC sequence (312, 504-508). The M-point parallel transform sequence (312) is distributed (316, 510) to a set of M subcarriers among N subcarriers to form an N-point frequency-domain sequence (318) wherein the M subcarriers are evenly spaced apart. An N-point inverse fast Fourier transform (320, 512) is performed to convert the N-point frequency-domain sequence to an N-point time-domain sequence (322). The N-point time-domain sequence is converted (324, 514) to a serial sequence (326), and a cyclic prefix is added (328, 516) to the serial sequence to form a pilot symbol (330).
PCT/US2006/062389 2006-01-18 2006-12-20 Pilot signal in an fdma communication system WO2007117328A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
KR1020137020287A KR101531228B1 (en) 2006-01-18 2006-12-20 Pilot signal in an fdma communication system
KR1020137009265A KR101424014B1 (en) 2006-01-18 2006-12-20 Pilot signal in an fdma communication system
EP06850332.5A EP1980035B1 (en) 2006-01-18 2006-12-20 Pilot signal generation in an SC-FDMA transmitter
KR1020087017593A KR101273230B1 (en) 2006-01-18 2006-12-20 Pilot signal in an FDMA communication system
KR1020147036438A KR101588994B1 (en) 2006-01-18 2006-12-20 Pilot signal in an fdma communication system
JP2008551277A JP5123208B2 (en) 2006-01-18 2006-12-20 Pilot signal in FDMA communication system
KR1020157017011A KR101610735B1 (en) 2006-01-18 2006-12-20 Pilot signal in an fdma communication system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/334,606 2006-01-18
US11/334,606 US7808886B2 (en) 2006-01-18 2006-01-18 Pilot signal in an FDMA communication system

Publications (2)

Publication Number Publication Date
WO2007117328A2 WO2007117328A2 (en) 2007-10-18
WO2007117328A3 true WO2007117328A3 (en) 2008-10-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/062389 WO2007117328A2 (en) 2006-01-18 2006-12-20 Pilot signal in an fdma communication system

Country Status (6)

Country Link
US (6) US7808886B2 (en)
EP (3) EP2822244A1 (en)
JP (1) JP5123208B2 (en)
KR (5) KR101273230B1 (en)
HK (1) HK1205602A1 (en)
WO (1) WO2007117328A2 (en)

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Also Published As

Publication number Publication date
US10250346B2 (en) 2019-04-02
EP2822243B1 (en) 2017-10-25
US8363540B2 (en) 2013-01-29
US20070165588A1 (en) 2007-07-19
EP1980035B1 (en) 2014-12-17
KR20150006894A (en) 2015-01-19
WO2007117328A2 (en) 2007-10-18
KR101610735B1 (en) 2016-04-12
KR101424014B1 (en) 2014-08-01
KR101588994B1 (en) 2016-01-26
JP2009524348A (en) 2009-06-25
US20160006524A1 (en) 2016-01-07
JP5123208B2 (en) 2013-01-23
EP1980035A4 (en) 2013-05-15
US8000228B2 (en) 2011-08-16
US8279978B2 (en) 2012-10-02
US9136966B2 (en) 2015-09-15
KR101531228B1 (en) 2015-06-25
EP1980035A2 (en) 2008-10-15
KR20130047769A (en) 2013-05-08
US20110299384A1 (en) 2011-12-08
US20110299380A1 (en) 2011-12-08
KR20150082666A (en) 2015-07-15
KR20080089602A (en) 2008-10-07
US20100322226A1 (en) 2010-12-23
EP2822244A1 (en) 2015-01-07
US20130201982A1 (en) 2013-08-08
EP2822243A1 (en) 2015-01-07
HK1205602A1 (en) 2015-12-18
KR101273230B1 (en) 2013-06-11
US7808886B2 (en) 2010-10-05
KR20130091795A (en) 2013-08-19

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