ZA200904715B - Cell searching system and method - Google Patents

Cell searching system and method

Info

Publication number
ZA200904715B
ZA200904715B ZA200904715A ZA200904715A ZA200904715B ZA 200904715 B ZA200904715 B ZA 200904715B ZA 200904715 A ZA200904715 A ZA 200904715A ZA 200904715 A ZA200904715 A ZA 200904715A ZA 200904715 B ZA200904715 B ZA 200904715B
Authority
ZA
South Africa
Prior art keywords
searching system
cell searching
cell
searching
Prior art date
Application number
ZA200904715A
Other languages
English (en)
Inventor
Bengt Lindoff
Erik Dahlman
Robert Baldemair
Stefan Parkvall
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of ZA200904715B publication Critical patent/ZA200904715B/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7083—Cell search, e.g. using a three-step approach
    • 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
    • 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
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
ZA200904715A 2007-01-31 2008-01-30 Cell searching system and method ZA200904715B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88745607P 2007-01-31 2007-01-31

Publications (1)

Publication Number Publication Date
ZA200904715B true ZA200904715B (en) 2010-09-29

Family

ID=39667884

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA200904715A ZA200904715B (en) 2007-01-31 2008-01-30 Cell searching system and method

Country Status (9)

Country Link
US (2) US8009661B2 (xx)
EP (1) EP2115880B1 (xx)
KR (1) KR20090112679A (xx)
CN (1) CN101601194B (xx)
CA (1) CA2675838C (xx)
HK (1) HK1132854A1 (xx)
TW (1) TW200838342A (xx)
WO (1) WO2008092880A1 (xx)
ZA (1) ZA200904715B (xx)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9077315B2 (en) * 2003-06-25 2015-07-07 John W. Bogdan Inverse signal transformation
US9100165B2 (en) * 2005-06-27 2015-08-04 John W. Bogdan Direct data recovery
RU2437215C2 (ru) * 2007-01-08 2011-12-20 Телефонактиеболагет Лм Эрикссон (Пабл) Вторичные последовательности синхронизации для детектирования групп ячеек в системе сотовой связи
JP4601637B2 (ja) * 2007-03-20 2010-12-22 株式会社エヌ・ティ・ティ・ドコモ 移動局、送信方法及び無線通信システム
US8054823B2 (en) 2007-06-18 2011-11-08 Texas Instruments Incorporated Mapping schemes for secondary synchronization signal scrambling
US9332515B2 (en) 2007-06-18 2016-05-03 Texas Instruments Incorporated Mapping schemes for secondary synchronization signal scrambling
US8543151B2 (en) 2007-07-19 2013-09-24 Samsung Electronics Co., Ltd. Method for generating downlink frame, and method for searching cell
KR101495886B1 (ko) * 2007-07-19 2015-02-26 한국전자통신연구원 하향링크 프레임 생성 방법 및 셀 탐색 방법
US8331331B2 (en) * 2007-08-03 2012-12-11 Qualcomm Incorporated Method and apparatus for determining cell timing in a wireless communication system
US8289946B2 (en) * 2007-08-14 2012-10-16 Qualcomm Incorporated Reference signal generation in a wireless communication system
US9025586B2 (en) * 2007-09-21 2015-05-05 Texas Instruments Incorporated Secondary synchronization signal mapping
US8676133B2 (en) * 2008-09-19 2014-03-18 Qualcomm Incorporated Reference signal design for LTE A
US9136891B2 (en) * 2011-12-12 2015-09-15 John W. Bogdan Adaptive data decoding
US8705440B2 (en) * 2009-01-15 2014-04-22 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for cell searching
JP2010166532A (ja) * 2009-01-19 2010-07-29 Toshiba Corp 移動無線端末装置および基地局探索方法
EP2446679B1 (en) * 2009-06-24 2017-03-22 IDTP Holdings, Inc. Methods and arrangements in a cellular network for supporting positioning
CN101834657A (zh) * 2010-04-01 2010-09-15 复旦大学 一种3gpp lte下行初始主同步检测方法
US9660775B2 (en) * 2010-06-15 2017-05-23 Huawei Technologies Co., Ltd. System and method for punctured pilot transmission in a wireless network
CN102075237A (zh) * 2010-12-23 2011-05-25 大唐移动通信设备有限公司 主同步信号的搜索方法及设备
CN102075946A (zh) * 2011-01-11 2011-05-25 大唐移动通信设备有限公司 一种物理小区id规划方法及装置
US9014169B2 (en) * 2011-03-10 2015-04-21 Telefonaktiebolaget L M Ericsson (Publ) Cell search procedure for heterogeneous networks
CN102905345B (zh) * 2011-07-26 2014-11-12 开曼晨星半导体公司 一种lte小区验证方法
EP2810490A4 (en) * 2012-02-03 2015-12-02 Nokia Technologies Oy METHOD AND APPARATUS FOR MANAGING CARRIERS
US9184889B2 (en) * 2012-08-08 2015-11-10 Blackberry Limited Method and system having reference signal design for new carrier types
US9402256B2 (en) 2012-08-08 2016-07-26 Blackberry Limited Method and system having reference signal design for new carrier types
CN103781170B (zh) * 2012-10-19 2017-06-23 电信科学技术研究院 信号发送和设备识别方法及设备
ES2882220T3 (es) 2013-01-18 2021-12-01 Huawei Tech Co Ltd Método de detección y aparato para un canal de control común
US9571242B2 (en) * 2013-04-26 2017-02-14 Intel Deutschland Gmbh Methods and devices for mitigating interference
CN104956598B (zh) * 2013-05-08 2017-06-27 华为技术有限公司 一种信息检测及发送的方法及装置
WO2015093821A1 (en) * 2013-12-16 2015-06-25 Samsung Electronics Co., Ltd. Method and system for enhanced cell acquisition in communication system
CN106061572A (zh) 2014-01-24 2016-10-26 华为技术有限公司 信息传输的方法、用户设备及基站
CN106464399B (zh) * 2014-04-17 2018-11-30 瑞典爱立信有限公司 干扰消除技术
US9615342B2 (en) * 2015-01-27 2017-04-04 Telefonaktiebolaget Lm Ericsson (Publ) Method of detecting cell identity and frame number information
US10542507B2 (en) * 2015-03-13 2020-01-21 Qualcomm Incorporated Discovery and synchronization channels for user-tracking zones in a cellular network
CN106034345B (zh) 2015-04-17 2021-02-09 索尼公司 终端侧、基站侧设备，终端设备，基站和无线通信方法
KR102332471B1 (ko) 2015-05-08 2021-11-30 삼성전자주식회사 동기 신호 검출을 위한 장치 및 방법
EP3562086B1 (en) * 2016-11-02 2021-06-30 Telefonaktiebolaget LM Ericsson (publ) Search space monitoring in wireless communication systems
US20180124830A1 (en) * 2016-11-03 2018-05-03 Huawei Technologies Co., Ltd. Random access channel design, methods, and apparatus
CN108270709B (zh) * 2016-12-30 2020-05-05 维沃移动通信有限公司 一种同步信号配置方法、基站及终端
WO2018146293A1 (en) 2017-02-13 2018-08-16 Telefonaktiebolaget Lm Ericsson (Publ) Adaptive mobility reference signal configuration
CN109150469B (zh) * 2017-06-16 2023-12-15 华为技术有限公司 参考信号指示方法、参考信号确定方法及设备
CN109219948B (zh) * 2017-08-11 2020-01-03 华为技术有限公司 一种信号处理方法及装置
CN109391577B (zh) 2017-08-11 2021-08-13 华为技术有限公司 一种信号处理方法及装置

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6185244B1 (en) * 1997-08-29 2001-02-06 Telefonaktiebolaget Lm Ericsson Cell searching in a CDMA communications system
KR100290678B1 (ko) * 1999-04-24 2001-05-15 윤종용 씨디엠에이 이동통신시스템의 셀탐색 장치 및 방법
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
GB2351422A (en) * 1999-06-25 2000-12-27 Roke Manor Research Association of a training code to a channelisation code in a mobile telecommunications system
EP1147851B1 (de) 2000-03-03 2001-11-14 Ernst Thielenhaus GmbH & Co. KG Vorrichtung zur Finishbearbeitung von Wellen, insbesondere von Kurbel- und Nockenwellen
EP1148751A1 (en) 2000-04-19 2001-10-24 Siemens Aktiengesellschaft Method for signalling of the base station identifier code
TW532041B (en) 2000-08-04 2003-05-11 Interdigital Tech Corp Cell search
US6628634B2 (en) 2000-12-11 2003-09-30 Telefonaktiebolaget Lm Ericsson (Publ) Fast decoding of long codes
US6894995B2 (en) 2001-06-22 2005-05-17 Interdigital Technology Corporation Apparatus and method for performing initial cell search in wireless communication systems
JP3694479B2 (ja) * 2001-12-07 2005-09-14 松下電器産業株式会社 マルチキャリア送受信装置、マルチキャリア無線通信方法、およびマルチキャリア無線通信用プログラム
US7065064B2 (en) 2001-12-20 2006-06-20 Interdigital Technology Corporation Cell search using peak quality factors
KR100871219B1 (ko) * 2002-04-24 2008-12-01 삼성전자주식회사 이동 통신 시스템에서 멀티 탐색을 제공하는 셀 탐색 장치및 방법
EP1391999B1 (en) 2002-08-23 2008-10-15 Chunghwa Telecom Co., Ltd. Synchronization and cell search method and apparatus for a WCDMA system
US7738437B2 (en) 2003-01-21 2010-06-15 Nortel Networks Limited Physical layer structures and initial access schemes in an unsynchronized communication network
US7308258B2 (en) 2003-01-23 2007-12-11 Interdigital Technology Corporation Unsuitable cell exclusion in wireless communication systems
EP1475899B1 (en) 2003-05-07 2006-07-19 STMicroelectronics S.r.l. Process and device for the cell search procedure in cellular communication systems
US7336600B2 (en) * 2003-12-29 2008-02-26 Industrial Technology Research Institute Cell search method for orthogonal frequency division multiplexing based cellular communication system
US7929509B2 (en) 2005-05-10 2011-04-19 Qualcomm Incorporated Reduced cell acquisition time
US8134996B2 (en) * 2005-07-21 2012-03-13 Texas Instruments Incorporated Downlink synchronization for a cellular OFDM communication system
GB2430330B (en) 2005-09-19 2010-03-10 Agilent Technologies Inc Allocation of a performance indicator among cells in a cellular communication system
US20070140106A1 (en) * 2005-12-21 2007-06-21 Interdigital Technology Corporation Synchronization channel for ofdma based evolved utra downlink
US8289946B2 (en) * 2007-08-14 2012-10-16 Qualcomm Incorporated Reference signal generation in a wireless communication system

Also Published As

Publication number Publication date
WO2008092880A1 (en) 2008-08-07
CN101601194A (zh) 2009-12-09
CA2675838A1 (en) 2008-08-07
EP2115880B1 (en) 2013-04-24
KR20090112679A (ko) 2009-10-28
EP2115880A1 (en) 2009-11-11
HK1132854A1 (en) 2010-03-05
CN101601194B (zh) 2012-12-26
US8670384B2 (en) 2014-03-11
US20080181194A1 (en) 2008-07-31
US8009661B2 (en) 2011-08-30
US20110244850A1 (en) 2011-10-06
TW200838342A (en) 2008-09-16
CA2675838C (en) 2015-03-17

Similar Documents

Publication Publication Date Title
HK1132854A1 (en) Cell searching system and method
EP2139984A4 (en) CELL SORTING SYSTEM AND METHOD
GB0710073D0 (en) Searching method and system
HK1232321A1 (zh) 搜索文件的系統和方法
EP2336905A4 (en) SEARCH PROCESS AND SYSTEM
EP2199255A4 (en) FUEL CELL SYSTEM AND METHOD FOR STARTING UP THE FUEL CELL SYSTEM
EP2088097A4 (en) STORAGE SYSTEM AND STORAGE METHOD
EP2214426A4 (en) CELL SELECTION SYSTEM, CELL SELECTION METHOD, AND PORTABLE TERMINAL
EP2141225A4 (en) CELL CULTURAL DEVICE, CELL CULTURE SYSTEM AND CELL CULTURE PROCESS
EP2227293A4 (en) MAGNARETRECTOR SYSTEM AND METHOD
TWI348165B (en) Memeoy cell writing system and method thereof
EP2173000A4 (en) FUEL CELL SYSTEM AND METHOD OF ACTIVATION THEREOF
EP2233431A4 (en) FUEL CELL SYSTEM AND METHOD FOR STARTING THE SAME
TWI369831B (en) Cell balancing system, method and electrical system thereof
GB0820886D0 (en) Enhanced search system and method
EP2280442A4 (en) FUEL CELL AND METHOD OF DISASSEMBLY
IL205252A0 (en) Document review system and method
GB0813586D0 (en) Thrust vectorong system and method
GB2461218B (en) Multi-battery charging system and method
EP2226114A4 (en) DEHYDRATION SYSTEM AND METHOD
EP2360619A4 (en) FAST FINGERPRINT SEARCH PROCESS AND FAST FINGERPRINT SEARCH SYSTEM
EP2168194A4 (en) FUEL CELL SYSTEM AND ACTIVATION METHOD FOR A FUEL CELL SYSTEM
GB2483570B (en) Mobile storage system and method with points indicating means
EG26141A (en) Photovoltaic focus system and method of focusing from it
EP2123347A4 (en) DEHYDRATION SYSTEM AND DEHYDRATION METHOD