WO2007124451A3 - Downlink synchronization channel and methods for cellular systems - Google Patents

Downlink synchronization channel and methods for cellular systems Download PDF

Info

Publication number
WO2007124451A3
WO2007124451A3 PCT/US2007/067137 US2007067137W WO2007124451A3 WO 2007124451 A3 WO2007124451 A3 WO 2007124451A3 US 2007067137 W US2007067137 W US 2007067137W WO 2007124451 A3 WO2007124451 A3 WO 2007124451A3
Authority
WO
WIPO (PCT)
Prior art keywords
primary
downlink synchronization
synchronization signal
provides
cellular downlink
Prior art date
Application number
PCT/US2007/067137
Other languages
French (fr)
Other versions
WO2007124451A2 (en
WO2007124451A8 (en
Inventor
Eko N Onggosanusi
Anand G Dabak
Badri N Varadarajan
Original Assignee
Texas Instruments Inc
Eko N Onggosanusi
Anand G Dabak
Badri N Varadarajan
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
Priority claimed from US11/737,554 external-priority patent/US8031745B2/en
Application filed by Texas Instruments Inc, Eko N Onggosanusi, Anand G Dabak, Badri N Varadarajan filed Critical Texas Instruments Inc
Priority to KR1020087028289A priority Critical patent/KR101055895B1/en
Priority to EP07761055.8A priority patent/EP2014116A4/en
Publication of WO2007124451A2 publication Critical patent/WO2007124451A2/en
Publication of WO2007124451A8 publication Critical patent/WO2007124451A8/en
Publication of WO2007124451A3 publication Critical patent/WO2007124451A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • 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
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
    • 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
    • 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
    • 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
    • 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
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals

Abstract

The present invention provides a method of operating a base station transmitter. The method includes providing a cellular downlink synchronization signal having primary and secondary portions, wherein the primary portion employs a corresponding one of a plurality of different primary signals allocated to adjoining transmission cells. The method also includes further providing cell- specific information in the secondary portion and transmitting the cellular downlink synchronization signal. In one embodiment, the primary portion explicitly indicates a partial cell identification information and the remaining cell identification information is carried in the secondary portion. In another embodiment, the plurality of different primary signals are simply used to avoid the channel mismatch effect. The present invention also provides a method of operating user equipment. The method includes receiving a cellular downlink synchronization signal having primary and secondary portions wherein the timing acquisition is performed in conjunction with the primary synchronization sequence index detection via the primary portion. In addition, the secondary portion provides cell- specific parameters and identifying and extracting the secondary portion.
PCT/US2007/067137 2006-04-20 2007-04-20 Downlink synchronization channel and methods for cellular systems WO2007124451A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020087028289A KR101055895B1 (en) 2006-04-20 2007-04-20 Base station transmitter, user equipment receiver, method of operating base station transmitter, method of operating user equipment receiver and method of operating cellular communication network
EP07761055.8A EP2014116A4 (en) 2006-04-20 2007-04-20 Downlink synchronization channel and methods for cellular systems

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US74525006P 2006-04-20 2006-04-20
US60/745,250 2006-04-20
US11/737,554 US8031745B2 (en) 2006-04-20 2007-04-19 Downlink synchronization channel and methods for cellular systems
US11/737,554 2007-04-19

Publications (3)

Publication Number Publication Date
WO2007124451A2 WO2007124451A2 (en) 2007-11-01
WO2007124451A8 WO2007124451A8 (en) 2008-10-23
WO2007124451A3 true WO2007124451A3 (en) 2008-12-11

Family

ID=38625782

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/067137 WO2007124451A2 (en) 2006-04-20 2007-04-20 Downlink synchronization channel and methods for cellular systems

Country Status (4)

Country Link
EP (1) EP2014116A4 (en)
KR (1) KR101055895B1 (en)
CN (2) CN106304318B (en)
WO (1) WO2007124451A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8223625B2 (en) * 2006-08-23 2012-07-17 Qualcomm, Incorporated Acquisition in frequency division multiple access systems
US7965797B2 (en) 2007-11-01 2011-06-21 Texas Instruments Incorporated Method, system and apparatus for generating constant amplitude zero autocorrelation sequences
US8625540B2 (en) 2008-02-04 2014-01-07 Huawei Technologies Co., Ltd. Mobile communication system, base station device, mobile station device, and mobile communication method
CN106612502B (en) * 2015-10-22 2019-11-12 普天信息技术有限公司 A kind of acquisition methods and system of Physical Cell Identifier PCI

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5930366A (en) * 1997-08-29 1999-07-27 Telefonaktiebolaget L M Ericsson Synchronization to a base station and code acquisition within a spread spectrum communication system
US20020075833A1 (en) * 2000-08-04 2002-06-20 Interdigital Technology Corporation Periodic cell search
US6717930B1 (en) * 2000-05-22 2004-04-06 Interdigital Technology Corporation Cell search procedure for time division duplex communication systems using code division multiple access
US6894995B2 (en) * 2001-06-22 2005-05-17 Interdigital Technology Corporation Apparatus and method for performing initial cell search in wireless communication systems

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19916063C1 (en) * 1999-04-09 2000-07-13 Siemens Ag Synchronising method for radio communication system
US6385264B1 (en) * 1999-06-08 2002-05-07 Qualcomm Incorporated Method and apparatus for mitigating interference between base stations in a wideband CDMA system
EP1154662B1 (en) * 2000-05-10 2004-03-03 Mitsubishi Electric Information Technology Centre Europe B.V. Method for allocating secondary synchronisation codes to a base station of a mobile telecommunication system
JP3394530B2 (en) * 2001-08-07 2003-04-07 松下電器産業株式会社 Cell search apparatus and cell search method
US6847630B2 (en) * 2001-11-09 2005-01-25 Qualcomm, Incorporated Communications in an asynchronous cellular wireless network
KR20050076886A (en) * 2004-01-26 2005-07-29 삼성전자주식회사 A method and apparatus of common channel beacon for inter-fa hard handover in w-cdma network

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5930366A (en) * 1997-08-29 1999-07-27 Telefonaktiebolaget L M Ericsson Synchronization to a base station and code acquisition within a spread spectrum communication system
US6717930B1 (en) * 2000-05-22 2004-04-06 Interdigital Technology Corporation Cell search procedure for time division duplex communication systems using code division multiple access
US20020075833A1 (en) * 2000-08-04 2002-06-20 Interdigital Technology Corporation Periodic cell search
US6894995B2 (en) * 2001-06-22 2005-05-17 Interdigital Technology Corporation Apparatus and method for performing initial cell search in wireless communication systems

Also Published As

Publication number Publication date
CN106304318B (en) 2020-02-11
WO2007124451A2 (en) 2007-11-01
KR20090008375A (en) 2009-01-21
KR101055895B1 (en) 2011-08-09
EP2014116A4 (en) 2013-10-09
WO2007124451A8 (en) 2008-10-23
CN103874188B (en) 2018-03-09
CN103874188A (en) 2014-06-18
EP2014116A2 (en) 2009-01-14
CN106304318A (en) 2017-01-04

Similar Documents

Publication Publication Date Title
WO2008103981A3 (en) Secondary synchronization channel design for ofdma systems
EP2843862A3 (en) Base station, mobile station, and synchronization channel transmission method
WO2007120907A3 (en) Method and apparatus for synchronization in an evolved-utra ofdma wireless communication system
WO2008033985A3 (en) Beacon assisted cell search in a wireless communication system
MX2010008504A (en) Mobile communication system, base station device, mobile station device, and mobile communication method.
WO2009008680A3 (en) Method for generating downlink frame, and method for searching cell
MY147238A (en) Method and apparatus for using the synchronization channel to obtain measurements of neighboring cells in an ofdm communications system
MY158550A (en) Acquisition in frequency division multiple access systems
WO2009008624A3 (en) Method of performing cell search in wireless communication system
WO2008057752A3 (en) Method and apparatus for fast cell search
WO2010016670A3 (en) Method and apparatus of transmitting data in multiple rf system
WO2010018993A3 (en) Apparatus and method for transceiving downlink control information
WO2007133411A3 (en) Assignment of uplink reference signals
WO2011162522A3 (en) Method and apparatus for transmitting channel state information
CA2642017A1 (en) Cell search method, forward link frame transmission method, apparatus using the same and forward link frame structure
WO2008032959A3 (en) A method for transmitting and receiving signals based on the segmented access scheme, and a method for allocating sequence for the same
WO2009054058A1 (en) Transmission method, wireless base station, and mobile station
WO2007075463A3 (en) Synchronization channel for ofdma based evolved utra downlink
UA96462C2 (en) Method and devices for searching cells in orthogonal wireless communication system
EP2076980A4 (en) Tdm based cell search method for ofdm system
WO2008070494A3 (en) System for automatically determining cell transmitter parameters to facilitate the location of wireless devices
MX2010001201A (en) Method and apparatus for determining cell timing in a wireless communication system.
WO2009084923A3 (en) Method for transmitting preamble in scalable bandwidth system
EP2561710A4 (en) A system and method for sss detection under carrier frequency offset in an orthogonal frequency-division multiple access downlink channel
WO2010036006A3 (en) Method of transmitting control signal in multi-cell cooperative wireless communication system

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200780014079.1

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07761055

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2007761055

Country of ref document: EP