CN101174853B - 起始胞元检索算法 - Google Patents
起始胞元检索算法 Download PDFInfo
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- CN101174853B CN101174853B CN2007101669747A CN200710166974A CN101174853B CN 101174853 B CN101174853 B CN 101174853B CN 2007101669747 A CN2007101669747 A CN 2007101669747A CN 200710166974 A CN200710166974 A CN 200710166974A CN 101174853 B CN101174853 B CN 101174853B
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- 238000004891 communication Methods 0.000 claims abstract description 35
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Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
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- 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
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- 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
-
- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0602—Systems characterised by the synchronising information used
- H04J3/0605—Special codes used as synchronising signal
- H04J3/0608—Detectors therefor, e.g. correlators, state machines
-
- 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
Abstract
Description
Claims (3)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US27164201P | 2001-02-27 | 2001-02-27 | |
US60/271,642 | 2001-02-27 | ||
US09/918,611 US6826244B2 (en) | 2001-02-27 | 2001-07-31 | Initial cell search algorithm for 3G FDD wireless communication systems |
US09/918,611 | 2001-07-31 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB028055926A Division CN100346591C (zh) | 2001-02-27 | 2002-02-04 | 起始小区检索算法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101174853A CN101174853A (zh) | 2008-05-07 |
CN101174853B true CN101174853B (zh) | 2012-07-18 |
Family
ID=26955047
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2007101669747A Expired - Lifetime CN101174853B (zh) | 2001-02-27 | 2002-02-04 | 起始胞元检索算法 |
CNB028055926A Expired - Lifetime CN100346591C (zh) | 2001-02-27 | 2002-02-04 | 起始小区检索算法 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB028055926A Expired - Lifetime CN100346591C (zh) | 2001-02-27 | 2002-02-04 | 起始小区检索算法 |
Country Status (20)
Country | Link |
---|---|
US (7) | US6826244B2 (zh) |
EP (5) | EP1686698B1 (zh) |
JP (2) | JP4382352B2 (zh) |
KR (2) | KR100722210B1 (zh) |
CN (2) | CN101174853B (zh) |
AR (1) | AR032861A1 (zh) |
AT (3) | ATE345601T1 (zh) |
BR (1) | BRPI0207841B1 (zh) |
CA (2) | CA2439378C (zh) |
DE (4) | DE60236076D1 (zh) |
DK (3) | DK1608080T3 (zh) |
ES (4) | ES2273312T3 (zh) |
HK (2) | HK1065424A1 (zh) |
IL (3) | IL157450A0 (zh) |
MX (1) | MXPA03007640A (zh) |
MY (1) | MY130625A (zh) |
NO (2) | NO336023B1 (zh) |
SG (2) | SG190452A1 (zh) |
TW (5) | TWI428042B (zh) |
WO (1) | WO2002069551A1 (zh) |
Families Citing this family (28)
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KR100709088B1 (ko) * | 2000-04-07 | 2007-04-19 | 인터디지탈 테크날러지 코포레이션 | 무선 통신 시스템용 기지국 동기 방법 및 시스템 |
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US6826244B2 (en) | 2001-02-27 | 2004-11-30 | Interdigital Technology Corporation | Initial cell search algorithm for 3G FDD wireless communication systems |
GB2378328B (en) * | 2001-08-01 | 2005-07-13 | Ipwireless Inc | AGC scheme and receiver for use in a wireless communication system |
US7356098B2 (en) * | 2001-11-14 | 2008-04-08 | Ipwireless, Inc. | Method, communication system and communication unit for synchronisation for multi-rate communication |
TWI324023B (en) * | 2002-07-31 | 2010-04-21 | Interdigital Tech Corp | Start-up automatic frequency control (afc) method and apparatus |
AU2003273321A1 (en) * | 2002-09-12 | 2004-04-30 | Interdigital Technology Corporation | Mitigation of interference in cell search by wireless transmit and receive units |
US20040058650A1 (en) * | 2002-09-19 | 2004-03-25 | Torgny Palenius | Receivers and methods for searching for cells using recorded data |
AU2003259590A1 (en) * | 2003-01-23 | 2004-08-12 | Nec Australia Pty Ltd | Cell search method and apparatus in a WCDMA system |
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US7555067B2 (en) * | 2003-03-13 | 2009-06-30 | Texas Instruments Incorporated | Method and apparatus for decoder input scaling based on interference estimation in CDMA |
DE10311323A1 (de) * | 2003-03-14 | 2004-09-30 | Infineon Technologies Ag | Vorrichtung zur Synchronisation eines Mobilfunkempfängers auf eine Rahmenstruktur eines empfangenen Funksignals |
US7261830B2 (en) * | 2003-10-16 | 2007-08-28 | Molecular Imprints, Inc. | Applying imprinting material to substrates employing electromagnetic fields |
US8364185B2 (en) * | 2005-04-18 | 2013-01-29 | Samsung Electronics Co., Ltd. | Method and system for synchronizing a clock for an adjacent network to a clock for an overlay network |
JP2006319765A (ja) * | 2005-05-13 | 2006-11-24 | Mitsubishi Electric Corp | Cdma用受信装置およびセルサーチ方法 |
US9094146B2 (en) | 2007-01-08 | 2015-07-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Secondary synchronization sequences for cell group detection in a cellular communications system |
US8050225B2 (en) * | 2007-05-21 | 2011-11-01 | Qualcomm Incorporated | Assignment of primary and secondary synchronization code sequences to cells in a wireless communication system |
US9025586B2 (en) * | 2007-09-21 | 2015-05-05 | Texas Instruments Incorporated | Secondary synchronization signal mapping |
US8503547B2 (en) * | 2007-10-11 | 2013-08-06 | Qualcomm Incorporated | Scrambling codes for secondary synchronization codes in wireless communication systems |
US8098630B2 (en) | 2008-05-09 | 2012-01-17 | Research In Motion Limited | Scanning methods and apparatus for system acquisition |
EP2117128B1 (en) | 2008-05-09 | 2012-11-21 | Research In Motion Limited | Scanning methods and apparatus for system acquisition |
US8849452B2 (en) * | 2009-08-03 | 2014-09-30 | Honda Motor Co., Ltd. | Robot and control system |
EP2456106B1 (en) * | 2010-11-22 | 2013-11-06 | Sequans Communications | Cell search method for a downlink channel of an OFDMA transmission system |
US8748798B2 (en) * | 2012-09-05 | 2014-06-10 | Omnivision Technologies, Inc. | Comparator circuit for reduced output variation |
US10474652B2 (en) * | 2013-03-14 | 2019-11-12 | Inpixon | Optimizing wide data-type storage and analysis of data in a column store database |
US10305671B2 (en) * | 2015-05-21 | 2019-05-28 | Cirrus Logic, Inc. | Synchronous differential signaling protocol |
US10044403B1 (en) * | 2017-05-04 | 2018-08-07 | Samsung Electronics Co., Ltd | Apparatus and method for multi-beam initial synchronization for 5G-NR system |
US10624024B2 (en) | 2017-10-24 | 2020-04-14 | Qualcomm Incorporated | Correlation-enhanced frequency scanning |
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2002
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US5881100A (en) * | 1994-09-09 | 1999-03-09 | Omnipoint Corporation | Method and apparatus for coherent correlation of a spread spectrum signal |
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