AR019597A1 - Medio de determinacion de demora de propagacion de multitrayecto que usa simbolos piloto insertados periodicamente - Google Patents

Medio de determinacion de demora de propagacion de multitrayecto que usa simbolos piloto insertados periodicamente

Info

Publication number
AR019597A1
AR019597A1 ARP990102551A ARP990102551A AR019597A1 AR 019597 A1 AR019597 A1 AR 019597A1 AR P990102551 A ARP990102551 A AR P990102551A AR P990102551 A ARP990102551 A AR P990102551A AR 019597 A1 AR019597 A1 AR 019597A1
Authority
AR
Argentina
Prior art keywords
cdma
pilot symbols
tsk
pdi
psi
Prior art date
Application number
ARP990102551A
Other languages
English (en)
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 AR019597A1 publication Critical patent/AR019597A1/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • 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
    • H04B1/70754—Setting of search window, i.e. range of code offsets to be searched
    • 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
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7113—Determination of path profile
    • 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
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • 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
    • 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
    • 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
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
    • 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
    • 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
    • H04B2201/70702—Intercell-related aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/18—Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
    • 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
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Abstract

La presente se relaciona con un medio de determinacion de demora de propagacion de multitrayecto (STU) para determinar un espectro demora potencia (DPS) deuna transmision de senal CDMA entre una estacion base (BS) CDMA y una estacion movil (MS) CDMAen una pluralidad de trayectos de propagacion (P1, P2) dentro deuna celda (CL) de un sistema de comunicacion CDMA, que comprende un medio de conversion A/D (A/D) para convertir una senal multitrayecto analogica CDMA (S1,S2) recibida de al menos unaa ntena (Ant1, Ant2) dentro de la mencionada celda (CL) en una senal multitrayecto digital CDMA (S1, S2)que consiste de tramas deradio consecutivas (RF1...RFn) que incluyen ranuras (slot) de tiempo (TS1...TSm) con símbolos piloto complejos (PSi) ysímb olos de datos (Pdi), undemultiplexor (PI-DEMUX) para extraer los símbolos piloto complejos (PSi) y los símbolos de datos (Pdi) de por lo menos dos ranuras (slot) de tiempoconsecutivas (TSk - 1, TSk, TSk + 1) de cada trama de radio (RFn) y paraalmace narlos consecutivamente en un medio de memoria (BUF), y un medio de busqueda(SI...SL) para determinar un perfil potencia demora (DPS, DPS1, DPS2) de cada una de las antenas mencionadas (Ant1, Ant2) sobre la base de los mencionadosextraídos yalmacena dos símbolos piloto complejos y los mencionados símbolos de datos (PSi, Pdi).
ARP990102551A 1998-05-29 1999-05-28 Medio de determinacion de demora de propagacion de multitrayecto que usa simbolos piloto insertados periodicamente AR019597A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19824218A DE19824218C1 (de) 1998-05-29 1998-05-29 Multipfad-Ausbreitungsverzögerungs-Bestimmungsvorrichtung unter Verwendung von periodisch eingefügten Pilotsymbolen

Publications (1)

Publication Number Publication Date
AR019597A1 true AR019597A1 (es) 2002-02-27

Family

ID=7869404

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP990102551A AR019597A1 (es) 1998-05-29 1999-05-28 Medio de determinacion de demora de propagacion de multitrayecto que usa simbolos piloto insertados periodicamente

Country Status (9)

Country Link
EP (2) EP1303058B1 (es)
JP (1) JP4480889B2 (es)
KR (1) KR100694927B1 (es)
CN (1) CN100385812C (es)
AR (1) AR019597A1 (es)
AU (1) AU756608B2 (es)
CA (1) CA2333479C (es)
DE (1) DE19824218C1 (es)
WO (1) WO1999063677A1 (es)

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JP2001196975A (ja) * 2000-01-17 2001-07-19 Nec Corp Ｃｄｍａ方式無線基地局用の同期捕捉回路
JP3943305B2 (ja) 2000-01-19 2007-07-11 三菱電機株式会社 スペクトル拡散受信装置、およびスペクトル拡散受信方法
JP3566895B2 (ja) * 2000-02-15 2004-09-15 株式会社エヌ・ティ・ティ・ドコモ 先頭波位置検出装置、受信装置、先頭位置検出装置、先頭波位置検出方法および先頭位置検出方法
DE10012875B4 (de) * 2000-03-16 2004-04-01 Infineon Technologies Ag Mobilfunkempfänger
JP4255601B2 (ja) * 2000-06-14 2009-04-15 株式会社エヌ・ティ・ティ・ドコモ 移動通信システムにおける移動局の同期確立方法
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US20050113142A1 (en) * 2003-11-20 2005-05-26 Telefonaktiebolaget Lm Ericsson (Publ) Temporal joint searcher and channel estimators
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Also Published As

Publication number Publication date
CN1311924A (zh) 2001-09-05
AU756608B2 (en) 2003-01-16
AU4263199A (en) 1999-12-20
CN100385812C (zh) 2008-04-30
EP1303058A3 (en) 2005-02-02
EP1303058B1 (en) 2007-07-11
KR20010052444A (ko) 2001-06-25
CA2333479C (en) 2008-12-16
WO1999063677A1 (en) 1999-12-09
CA2333479A1 (en) 1999-12-09
JP4480889B2 (ja) 2010-06-16
EP1082821B1 (en) 2003-04-16
EP1303058A2 (en) 2003-04-16
JP2002517938A (ja) 2002-06-18
EP1082821A1 (en) 2001-03-14
KR100694927B1 (ko) 2007-03-14
DE19824218C1 (de) 2000-03-23

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