BR0314026A - Operação de adaptação de um filtro de sinal piloto com base em velocidade de unidade móvel - Google Patents

Operação de adaptação de um filtro de sinal piloto com base em velocidade de unidade móvel

Info

Publication number
BR0314026A
BR0314026A BR0314026-1A BR0314026A BR0314026A BR 0314026 A BR0314026 A BR 0314026A BR 0314026 A BR0314026 A BR 0314026A BR 0314026 A BR0314026 A BR 0314026A
Authority
BR
Brazil
Prior art keywords
mobile unit
pilot signal
unit speed
pilot
signal filter
Prior art date
Application number
BR0314026-1A
Other languages
English (en)
Inventor
Parvathanathan Subrahmanya
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR0314026A publication Critical patent/BR0314026A/pt

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
    • H04B1/76—Pilot transmitters or receivers for control of transmission or for equalising
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • H04L25/0214—Channel estimation of impulse response of a single coefficient
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

"OPERAçãO DE ADAPTAçãO DE UM FILTRO DE SINAL PILOTO COM BASE EM VELOCIDADE DE UNIDADE MóVEL". São providos um método e um equipamento para adaptar uma filtro de piloto com base na velocidade de um dispositivo de comunicação sem fio (WCD) em relação a uma infra-estrutura de rede sem fio. O filtro piloto é adaptado pela determinação de coeficientes de piloto para o filtro piloto com base na velocidade do WCD. O filtro de piloto pode estar localizado no WCD, ou na infra-estrutura de rede, ou em ambos.
BR0314026-1A 2002-09-05 2003-09-05 Operação de adaptação de um filtro de sinal piloto com base em velocidade de unidade móvel BR0314026A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US40880702P 2002-09-05 2002-09-05
US10/632,411 US7454209B2 (en) 2002-09-05 2003-08-01 Adapting operation of a communication filter based on mobile unit velocity
PCT/US2003/028108 WO2004023672A2 (en) 2002-09-05 2003-09-05 Adapting operation of a pilot signal filter based on mobile unit velocity

Publications (1)

Publication Number Publication Date
BR0314026A true BR0314026A (pt) 2005-07-12

Family

ID=31981611

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0314026-1A BR0314026A (pt) 2002-09-05 2003-09-05 Operação de adaptação de um filtro de sinal piloto com base em velocidade de unidade móvel

Country Status (11)

Country Link
US (1) US7454209B2 (pt)
EP (1) EP1537683A2 (pt)
JP (2) JP2005538617A (pt)
KR (1) KR20050030976A (pt)
AU (1) AU2003270409C1 (pt)
BR (1) BR0314026A (pt)
CA (1) CA2496786A1 (pt)
IL (1) IL167123A0 (pt)
MX (1) MXPA05002524A (pt)
RU (1) RU2371849C2 (pt)
WO (1) WO2004023672A2 (pt)

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CN102244629A (zh) * 2010-05-11 2011-11-16 中兴通讯股份有限公司 区域预留方法及设备
CN103052102B (zh) * 2013-01-18 2016-12-28 东莞宇龙通信科技有限公司 终端、基站、信道测量方法、导频图案设置系统与方法
US9380519B2 (en) 2013-03-13 2016-06-28 Qualcomm Incorporated Using motion to improve local wireless network connectivity
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US9780921B2 (en) * 2014-07-11 2017-10-03 Quallcomm Incorporated Packet detection and bandwidth classification for variable-bandwidth packets
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Also Published As

Publication number Publication date
EP1537683A2 (en) 2005-06-08
AU2003270409C1 (en) 2009-07-16
US7454209B2 (en) 2008-11-18
RU2005109558A (ru) 2006-02-27
RU2371849C2 (ru) 2009-10-27
KR20050030976A (ko) 2005-03-31
JP2011050062A (ja) 2011-03-10
JP2005538617A (ja) 2005-12-15
CA2496786A1 (en) 2004-03-18
WO2004023672A2 (en) 2004-03-18
AU2003270409B2 (en) 2009-02-05
WO2004023672A3 (en) 2004-07-08
US20040125771A1 (en) 2004-07-01
MXPA05002524A (es) 2005-06-17
IL167123A0 (en) 2009-02-11
AU2003270409A1 (en) 2004-03-29

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 9A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2166 DE 10/07/2012.