MX2007004312A - Calculo de probabilidad logaritmica basado en errores de calculo de canal debidos a subbandas de proteccion. - Google Patents

Calculo de probabilidad logaritmica basado en errores de calculo de canal debidos a subbandas de proteccion.

Info

Publication number
MX2007004312A
MX2007004312A MX2007004312A MX2007004312A MX2007004312A MX 2007004312 A MX2007004312 A MX 2007004312A MX 2007004312 A MX2007004312 A MX 2007004312A MX 2007004312 A MX2007004312 A MX 2007004312A MX 2007004312 A MX2007004312 A MX 2007004312A
Authority
MX
Mexico
Prior art keywords
data
estimates
sub bands
errors due
log
Prior art date
Application number
MX2007004312A
Other languages
English (en)
Inventor
Durga Malladi
Anastasios Stamoulis
Dung N Doan
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36145309&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX2007004312(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of MX2007004312A publication Critical patent/MX2007004312A/es

Links

Classifications

    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03312—Arrangements specific to the provision of output signals
    • H04L25/03318—Provision of soft decisions
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03171—Arrangements involving maximum a posteriori probability [MAP] detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/06—Demodulator circuits; Receiver circuits
    • 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
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03292—Arrangements for operating in conjunction with other apparatus with channel estimation circuitry

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Noise Elimination (AREA)

Abstract

Se describen tecnicas para realizar la deteccion y decodificacion de datos de manera que represente las subbandas de proteccion. Un receptor obtiene simbolos de piloto recibidos para las subbandas de piloto y simbolos de datos recibidos para subbandas de datos. Los calculos de canal se derivan con base en los simbolos de piloto recibidos con subbandas de piloto con salida cero llenas con ceros. La deteccion de datos se realiza en los simbolos de datos recibidos con los calculos de canal para obtener calculos de simbolo de datos. Se derivan los calculos de ruido y errores de calculo debidos a las subbandas de piloto con salida cero. Despues, las LLRs se calculan con base en los calculos de simbolo de datos, los calculos de datos, y los calculos de ruido y los errores de calculo. Las LLRs se agrupan y decodifican para obtener datos decodificados.
MX2007004312A 2004-10-12 2005-10-12 Calculo de probabilidad logaritmica basado en errores de calculo de canal debidos a subbandas de proteccion. MX2007004312A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US61834504P 2004-10-12 2004-10-12
US11/248,975 US8325863B2 (en) 2004-10-12 2005-10-11 Data detection and decoding with considerations for channel estimation errors due to guard subbands
PCT/US2005/037077 WO2006042326A1 (en) 2004-10-12 2005-10-12 Log-likelihood estimation based on channel estimation errors due to guard subbands

Publications (1)

Publication Number Publication Date
MX2007004312A true MX2007004312A (es) 2007-06-18

Family

ID=36145309

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2007004312A MX2007004312A (es) 2004-10-12 2005-10-12 Calculo de probabilidad logaritmica basado en errores de calculo de canal debidos a subbandas de proteccion.

Country Status (12)

Country Link
US (1) US8325863B2 (es)
EP (1) EP1800445A1 (es)
JP (1) JP4768742B2 (es)
KR (1) KR100874620B1 (es)
CN (1) CN101124796B (es)
AU (1) AU2005295128A1 (es)
BR (1) BRPI0516092A (es)
CA (1) CA2584442C (es)
IL (1) IL182471A0 (es)
MX (1) MX2007004312A (es)
RU (1) RU2358400C2 (es)
WO (1) WO2006042326A1 (es)

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Also Published As

Publication number Publication date
CA2584442A1 (en) 2006-04-20
US8325863B2 (en) 2012-12-04
WO2006042326A1 (en) 2006-04-20
RU2007117710A (ru) 2008-11-20
JP4768742B2 (ja) 2011-09-07
US20060078075A1 (en) 2006-04-13
RU2358400C2 (ru) 2009-06-10
CN101124796B (zh) 2011-06-01
EP1800445A1 (en) 2007-06-27
KR100874620B1 (ko) 2008-12-17
CN101124796A (zh) 2008-02-13
JP2008516563A (ja) 2008-05-15
IL182471A0 (en) 2007-07-24
AU2005295128A1 (en) 2006-04-20
CA2584442C (en) 2012-09-18
KR20070063015A (ko) 2007-06-18
BRPI0516092A (pt) 2008-08-19

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