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MXPA05008320A - Busqueda inicial de celda en sistemas de comunicacion inalambricos. - Google Patents

Busqueda inicial de celda en sistemas de comunicacion inalambricos.

Info

Publication number
MXPA05008320A
MXPA05008320A MXPA05008320A MXPA05008320A MXPA05008320A MX PA05008320 A MXPA05008320 A MX PA05008320A MX PA05008320 A MXPA05008320 A MX PA05008320A MX PA05008320 A MXPA05008320 A MX PA05008320A MX PA05008320 A MXPA05008320 A MX PA05008320A
Authority
MX
Mexico
Prior art keywords
cell search
initial cell
wireless communication
communication systems
processing
Prior art date
Application number
MXPA05008320A
Other languages
English (en)
Inventor
R Chitrapu Prabhakar
Original Assignee
Interdigital Techlogy Corp
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 Interdigital Techlogy Corp filed Critical Interdigital Techlogy Corp
Publication of MXPA05008320A publication Critical patent/MXPA05008320A/es

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
    • 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
    • H04B1/70735—Code identification
    • 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
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/70755—Setting of lock conditions, e.g. threshold
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • 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
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • 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
    • H04B1/709—Correlator structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
    • 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)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

Se describe un metodo y se proporciona un sistema para llevar a cabo la busqueda inicial de celda. La etapa 1 (208) de procesamiento se realiza para detectar una ubicacion de codigo de sincronizacion primario pico (PSC) (es decir, desviacion de chip o ubicacion de chip). La etapa 2 (210) de procesamiento se realiza para obtener el tdesviacion y el grupo de codigo. La etapa 3 (212) de procesamiento se realiza para identificar el paso medio de una estacion de base con la cual la WTRU realiza la busqueda de celda inicial y con la cual se puede sincronizar.
MXPA05008320A 2003-02-05 2004-02-05 Busqueda inicial de celda en sistemas de comunicacion inalambricos. MXPA05008320A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US44533103P 2003-02-05 2003-02-05
PCT/US2004/003207 WO2004073321A2 (en) 2003-02-05 2004-02-05 Initial cell search in wireless communication systems

Publications (1)

Publication Number Publication Date
MXPA05008320A true MXPA05008320A (es) 2005-09-30

Family

ID=32869348

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA05008320A MXPA05008320A (es) 2003-02-05 2004-02-05 Busqueda inicial de celda en sistemas de comunicacion inalambricos.

Country Status (11)

Country Link
US (2) US7444144B2 (es)
EP (3) EP1595346A4 (es)
JP (1) JP4195901B2 (es)
KR (6) KR100950904B1 (es)
CN (3) CN101656553B (es)
CA (1) CA2513442A1 (es)
ES (1) ES2613954T3 (es)
HU (1) HUE033067T2 (es)
MX (1) MXPA05008320A (es)
NO (1) NO20053912L (es)
WO (1) WO2004073321A2 (es)

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CN101883379B (zh) * 2009-05-05 2012-12-26 上海摩波彼克半导体有限公司 无线通信系统实现无线终端邻小区两阶段测量优化的方法
US8989061B2 (en) * 2009-06-16 2015-03-24 Qualcomm Incorporated Methods and apparatus for initial acquisition in a communication system
EP2328286B1 (en) * 2009-11-30 2012-10-17 ST-Ericsson SA Process for slot synchronization of the p-sch sequence in a umts communication system, and a receiver for the same
CN101895384A (zh) * 2010-07-07 2010-11-24 中兴通讯股份有限公司 一种实现边界时钟的方法和装置
US8954055B2 (en) * 2011-11-10 2015-02-10 Qualcomm Incorporated Initial acquisition and neighbor search algorithms for wireless networks
WO2013100930A1 (en) * 2011-12-28 2013-07-04 Intel Corporation Channel estimation processing for performance improvement in low snr regime
KR101924830B1 (ko) * 2012-06-19 2019-02-27 삼성전자주식회사 무선 통신 네트워크에서 단말의 동기화 방법 및 장치
US8825048B2 (en) * 2012-10-22 2014-09-02 Qualcomm Incorporated Method and apparatus for determining base station identity
EP2982043B1 (en) * 2013-04-05 2018-12-19 Telefonaktiebolaget LM Ericsson (publ) Apparatus and method for jointly selecting the tap values and delays of the fingers for a rake receiver of two carriers
KR102268110B1 (ko) * 2014-08-05 2021-06-22 삼성전자주식회사 데이터를 변조하는 방법 및 장치 및 기록 매체

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Also Published As

Publication number Publication date
CN101656553A (zh) 2010-02-24
KR20090032110A (ko) 2009-03-31
CN101656553B (zh) 2014-05-14
CN1745527B (zh) 2010-11-10
EP1595346A4 (en) 2006-09-13
KR20070059164A (ko) 2007-06-11
KR20050107410A (ko) 2005-11-11
KR100758190B1 (ko) 2007-09-13
CN101656554A (zh) 2010-02-24
WO2004073321A3 (en) 2004-12-09
NO20053912D0 (no) 2005-08-22
US7444144B2 (en) 2008-10-28
CN101656554B (zh) 2016-10-05
CN1745527A (zh) 2006-03-08
US8086228B2 (en) 2011-12-27
US20040248602A1 (en) 2004-12-09
NO20053912L (no) 2005-08-22
ES2613954T3 (es) 2017-05-29
EP1780920B1 (en) 2016-11-16
CA2513442A1 (en) 2004-08-26
KR100950905B1 (ko) 2010-04-06
HUE033067T2 (hu) 2017-11-28
KR100950906B1 (ko) 2010-04-05
KR20090108089A (ko) 2009-10-14
JP2006516856A (ja) 2006-07-06
KR20070059165A (ko) 2007-06-11
JP4195901B2 (ja) 2008-12-17
WO2004073321A2 (en) 2004-08-26
US20090054094A1 (en) 2009-02-26
KR20050095661A (ko) 2005-09-29
EP1978662A1 (en) 2008-10-08
KR100950904B1 (ko) 2010-04-06
EP1780920A1 (en) 2007-05-02
EP1595346A2 (en) 2005-11-16
EP1780920B8 (en) 2017-08-16

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