ECSP077211A - Método y aparato para cancelar la interferencia piloto en un sistema de comunicación inalámbrica - Google Patents
Método y aparato para cancelar la interferencia piloto en un sistema de comunicación inalámbricaInfo
- Publication number
- ECSP077211A ECSP077211A EC2007007211A ECSP077211A ECSP077211A EC SP077211 A ECSP077211 A EC SP077211A EC 2007007211 A EC2007007211 A EC 2007007211A EC SP077211 A ECSP077211 A EC SP077211A EC SP077211 A ECSP077211 A EC SP077211A
- Authority
- EC
- Ecuador
- Prior art keywords
- pilot
- pilot interference
- signal
- data samples
- wireless communication
- Prior art date
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
- H04B1/7097—Interference-related aspects
- H04B1/7103—Interference-related aspects the interference being multiple access interference
- H04B1/7107—Subtractive interference cancellation
-
- 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)
- Mobile Radio Communication Systems (AREA)
- Noise Elimination (AREA)
Abstract
Métodos y sistemas para estimar y cancelar la interferencia piloto en un sistema de comunicación inalámbrica (por ejemplo CDMA). En un método, una señal recibida comprendida de un número de instancias de señal, cada una incluyendo un piloto, es inicuamente procesada para proporcionar muestras de datos. Cada interferencia piloto de la instancia de señal puede ser estimada mediante la diseminación de las muestras de datos con una secuencia diseminadora para la instancia de señal, canalizando los datos de-diseminados para proporcionar símbolos pilotos, filtrar los símbolos pilotos para estimar la respuesta del canal a la instancia de señal, y multiplicar la respuesta del canal estimada con la secuencia de diseminación. Los estimados de la interferencia piloto debido a una pluralidad de multi-direccionales interferentes se acumulan para derivar la interferencia piloto total, la cual se resta de las muestras de datos para proporcionar muestras de datos piloto-canceladas. Estas muestras son entonces procesadas para derivar datos de-modulados para cada una de al menos una instancia de señal (deseado) en la señal recibida
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US58452704P | 2004-06-30 | 2004-06-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
ECSP077211A true ECSP077211A (es) | 2007-02-28 |
Family
ID=34993281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EC2007007211A ECSP077211A (es) | 2004-06-30 | 2007-01-29 | Método y aparato para cancelar la interferencia piloto en un sistema de comunicación inalámbrica |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP1766801A1 (es) |
JP (1) | JP4659828B2 (es) |
CN (1) | CN101027850B (es) |
AU (1) | AU2005260653A1 (es) |
BR (1) | BRPI0512822A (es) |
CA (1) | CA2572090A1 (es) |
EC (1) | ECSP077211A (es) |
IL (1) | IL180341A0 (es) |
MX (1) | MX2007000276A (es) |
NO (1) | NO20070422L (es) |
RU (1) | RU2007103333A (es) |
WO (1) | WO2006004948A1 (es) |
ZA (1) | ZA200700673B (es) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8611305B2 (en) | 2005-08-22 | 2013-12-17 | Qualcomm Incorporated | Interference cancellation for wireless communications |
US9071344B2 (en) | 2005-08-22 | 2015-06-30 | Qualcomm Incorporated | Reverse link interference cancellation |
US8737451B2 (en) | 2007-03-09 | 2014-05-27 | Qualcomm Incorporated | MMSE MUD in 1x mobiles |
US8571553B2 (en) | 2007-07-16 | 2013-10-29 | Qualcomm Incorporated | Methods and apparatus for resolving pilot pseudorandom noise code conflicts in a communication system |
US9408165B2 (en) | 2008-06-09 | 2016-08-02 | Qualcomm Incorporated | Increasing capacity in wireless communications |
US9277487B2 (en) | 2008-08-01 | 2016-03-01 | Qualcomm Incorporated | Cell detection with interference cancellation |
US9237515B2 (en) * | 2008-08-01 | 2016-01-12 | Qualcomm Incorporated | Successive detection and cancellation for cell pilot detection |
US9160577B2 (en) | 2009-04-30 | 2015-10-13 | Qualcomm Incorporated | Hybrid SAIC receiver |
US8787509B2 (en) | 2009-06-04 | 2014-07-22 | Qualcomm Incorporated | Iterative interference cancellation receiver |
US8831149B2 (en) | 2009-09-03 | 2014-09-09 | Qualcomm Incorporated | Symbol estimation methods and apparatuses |
WO2011063568A1 (en) | 2009-11-27 | 2011-06-03 | Qualcomm Incorporated | Increasing capacity in wireless communications |
KR101363016B1 (ko) | 2009-11-27 | 2014-02-13 | 퀄컴 인코포레이티드 | 무선 통신들에서의 용량 증가 |
US8817924B2 (en) * | 2010-09-23 | 2014-08-26 | Qualcomm Incorporated | Iterative pilot tone cancellation for improved channel estimation and decoding |
CN102195673A (zh) * | 2011-02-25 | 2011-09-21 | 福建三元达通讯股份有限公司 | 一种导频污染消除方法 |
JP5423866B2 (ja) * | 2012-11-20 | 2014-02-19 | ヤマハ株式会社 | 相関器 |
US9713143B2 (en) | 2013-06-25 | 2017-07-18 | Lg Electronics Inc. | Method and apparatus for estimating self-interference in wireless access system supporting full-duplex radio communication |
US20150134582A1 (en) * | 2013-11-08 | 2015-05-14 | Qualcomm Incorporated | Implementing synaptic learning using replay in spiking neural networks |
CN104753558A (zh) * | 2013-12-31 | 2015-07-01 | 中兴通讯股份有限公司 | 一种解扰解扩的方法及装置 |
CN109792276B (zh) * | 2016-09-30 | 2023-01-10 | 瑞典爱立信有限公司 | 相干带宽自适应csi报告 |
CN111323794B (zh) * | 2020-03-21 | 2023-05-05 | 哈尔滨工程大学 | 一种基于周期重采样的周期调频干扰消除方法 |
CN113507427B (zh) * | 2021-08-18 | 2023-07-25 | 南京天际易达通信技术有限公司 | 一种适用于π/4-DQPSK的载波跟踪方法、设备及可读存储介质 |
CN114978821B (zh) * | 2022-05-18 | 2024-04-23 | 西安交通大学 | 面向6g智能反射表面辅助通信系统的协同信道估计方法 |
CN114710382B (zh) * | 2022-06-07 | 2022-08-26 | 四川创智联恒科技有限公司 | 一种时分双工多天线系统的干扰消除方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6067292A (en) * | 1996-08-20 | 2000-05-23 | Lucent Technologies Inc | Pilot interference cancellation for a coherent wireless code division multiple access receiver |
JP2967571B1 (ja) * | 1998-05-01 | 1999-10-25 | 日本電気株式会社 | Cdmaマルチユーザ受信装置と通信システム |
US7190749B2 (en) * | 2001-06-06 | 2007-03-13 | Qualcomm Incorporated | Method and apparatus for canceling pilot interference in a wireless communication system |
CN1131615C (zh) * | 2002-02-26 | 2003-12-17 | 东南大学 | 码分多址系统导频干扰抵消方法和装置 |
-
2005
- 2005-06-30 AU AU2005260653A patent/AU2005260653A1/en not_active Abandoned
- 2005-06-30 JP JP2007519440A patent/JP4659828B2/ja not_active Expired - Fee Related
- 2005-06-30 EP EP05764210A patent/EP1766801A1/en not_active Withdrawn
- 2005-06-30 WO PCT/US2005/023307 patent/WO2006004948A1/en active Application Filing
- 2005-06-30 CN CN2005800267505A patent/CN101027850B/zh not_active Expired - Fee Related
- 2005-06-30 RU RU2007103333/09A patent/RU2007103333A/ru not_active Application Discontinuation
- 2005-06-30 MX MX2007000276A patent/MX2007000276A/es unknown
- 2005-06-30 CA CA002572090A patent/CA2572090A1/en not_active Abandoned
- 2005-06-30 BR BRPI0512822-6A patent/BRPI0512822A/pt not_active IP Right Cessation
-
2006
- 2006-12-26 IL IL180341A patent/IL180341A0/en unknown
-
2007
- 2007-01-23 NO NO20070422A patent/NO20070422L/no not_active Application Discontinuation
- 2007-01-24 ZA ZA200700673A patent/ZA200700673B/xx unknown
- 2007-01-29 EC EC2007007211A patent/ECSP077211A/es unknown
Also Published As
Publication number | Publication date |
---|---|
MX2007000276A (es) | 2007-06-15 |
ZA200700673B (en) | 2008-09-25 |
CN101027850A (zh) | 2007-08-29 |
CN101027850B (zh) | 2011-09-28 |
WO2006004948A1 (en) | 2006-01-12 |
BRPI0512822A (pt) | 2008-04-08 |
CA2572090A1 (en) | 2006-01-12 |
JP4659828B2 (ja) | 2011-03-30 |
AU2005260653A1 (en) | 2006-01-12 |
EP1766801A1 (en) | 2007-03-28 |
NO20070422L (no) | 2007-03-30 |
IL180341A0 (en) | 2007-07-04 |
JP2008505554A (ja) | 2008-02-21 |
RU2007103333A (ru) | 2008-08-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ECSP077211A (es) | Método y aparato para cancelar la interferencia piloto en un sistema de comunicación inalámbrica | |
CL2006001941A1 (es) | Metodo y aparato para la estimacion de un canal y del nivel de interferencia de un sistema de comunicacion inalambrica. | |
PH12017501667A1 (en) | Control channel based broadcast messaging | |
WO2014182541A3 (en) | Methods, systems and apparatuses for network assisted interference cancellation and/or suppression (naics) in long term evolution (lte) systems | |
NZ729967A (en) | Method for dynamic csi feedback | |
ES2370229T3 (es) | Método y disposición para mitigar interferencias intercelulares en un sistema de comunicaciones celular. | |
WO2015032313A3 (en) | System and method for channel estimation for generalized frequency division multiplexing (gfdm) | |
PH12015500358A1 (en) | Cqi estimation in a wireless communication network | |
WO2015054201A3 (en) | Interference estimation resource definition and usage for enhanced receivers | |
WO2011132988A3 (en) | Method and apparatus for channel estimation for radio link between a base station and a relay station | |
MX2019010748A (es) | Soporte para portadoras con superposicion de frecuencia. | |
WO2012043992A3 (ko) | 무선통신 시스템에서 릴레이 노드가 채널품질 지시자를 보고하는 방법 및 이를 위한 장치 | |
RU2013140764A (ru) | Вставка виртуальной несущей в обычную хост-несущую ofdm в системе связи | |
WO2014110208A3 (en) | Broadcast and paging channels for machine type communication | |
PH12014502069A1 (en) | Configuration of coordinated multipoint transmission hypotheses for channel state information reporting | |
WO2014027324A3 (en) | Methods, systems and devices for obtaining system information in a wireless network | |
PH12020500538A1 (en) | Method for selecting carrier and communication device | |
MX2014005526A (es) | Sistema y metodo para gestion de interferencia en redes celulares. | |
WO2011093644A3 (en) | Method and apparatus for allocating resources in a wireless communication system | |
DE602004029333D1 (de) | Kommunikationsempfänger mit einem adaptiven entzerrer, welcher kanalschätzung verwendet | |
WO2013025502A3 (en) | Method and apparatus for aggregating carriers of a backhaul connection | |
NZ526669A (en) | Narrowband interference suppression for OFDM systems | |
WO2011087272A3 (en) | A method and an apparatus for providing channel quality information in a wireless communication system | |
WO2011053073A3 (en) | Method and apparatus for transmitting dedicated reference signal | |
TW200727644A (en) | Weighted fair sharing of a wireless channel using resource utilization masks |