MX2007000276A - Metodo y aparato para cancelar interferencia piloto en un sistema de comunicacion inalambrica. - Google Patents
Metodo y aparato para cancelar interferencia piloto en un sistema de comunicacion inalambrica.Info
- Publication number
- MX2007000276A MX2007000276A MX2007000276A MX2007000276A MX2007000276A MX 2007000276 A MX2007000276 A MX 2007000276A MX 2007000276 A MX2007000276 A MX 2007000276A MX 2007000276 A MX2007000276 A MX 2007000276A MX 2007000276 A MX2007000276 A MX 2007000276A
- Authority
- MX
- Mexico
- Prior art keywords
- pilot
- signal
- pilot interference
- data samples
- communication system
- 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
Metodos y sistemas para estimar y cancelar la interferencia piloto en un sistema de comunicacion inalambrica (por ejemplo CDMA); en un metodo, una senal recibida compuesta de un numero de casos de senal, cada uno incluyendo un piloto, es inicialmente procesada para proveer muestras de datos; cada interferencia piloto del caso de senal puede ser estimada mediante el desensanchamiento. de las muestras de datos con una secuencia de ensanchamiento para el caso de senal, la canalizacion de los datos desensanchados para proveer simbolos piloto, la filtracion de los simbolos piloto para estimar la respuesta de canal del caso de senal, y la multiplicacion de la respuesta de canal estimada con la secuencia de ensanchamiento; los estimados de interferencia piloto a causa de una pluralidad de multiples trayectorias en interferencia se acumulan para derivar la interferencia piloto total, la cual es sustraida de las muestras de datos para proveer muestras de datos de piloto cancelado; estas muestras de datos son procesadas para derivar datos desmodulados para cada una de por lo menos un caso de senal (deseado) en la senal recibida.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US58452704P | 2004-06-30 | 2004-06-30 | |
PCT/US2005/023307 WO2006004948A1 (en) | 2004-06-30 | 2005-06-30 | Method and apparatus for canceling pilot interference in a wireless communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
MX2007000276A true MX2007000276A (es) | 2007-06-15 |
Family
ID=34993281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2007000276A MX2007000276A (es) | 2004-06-30 | 2005-06-30 | Metodo y aparato para cancelar interferencia piloto en un sistema de comunicacion inalambrica. |
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 |
US8995417B2 (en) | 2008-06-09 | 2015-03-31 | Qualcomm Incorporated | Increasing capacity in wireless communication |
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 |
JP6091895B2 (ja) | 2009-11-27 | 2017-03-08 | クゥアルコム・インコーポレイテッドQualcomm Incorporated | 無線通信における容量の増加 |
CN102668628B (zh) | 2009-11-27 | 2015-02-11 | 高通股份有限公司 | 增加无线通信中的容量的方法和装置 |
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 |
KR102174637B1 (ko) * | 2013-06-25 | 2020-11-05 | 엘지전자 주식회사 | 전 이중 무선 방식을 지원하는 무선 접속 시스템에서 자기 간섭 측정 방법 및 장치 |
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 |
WO2018063044A1 (en) * | 2016-09-30 | 2018-04-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Coherence bandwidth adaptive csi reporting |
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***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***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***导频干扰抵消方法和装置 |
-
2005
- 2005-06-30 WO PCT/US2005/023307 patent/WO2006004948A1/en active Application Filing
- 2005-06-30 MX MX2007000276A patent/MX2007000276A/es unknown
- 2005-06-30 RU RU2007103333/09A patent/RU2007103333A/ru not_active Application Discontinuation
- 2005-06-30 JP JP2007519440A patent/JP4659828B2/ja not_active Expired - Fee Related
- 2005-06-30 CN CN2005800267505A patent/CN101027850B/zh not_active Expired - Fee Related
- 2005-06-30 AU AU2005260653A patent/AU2005260653A1/en not_active Abandoned
- 2005-06-30 EP EP05764210A patent/EP1766801A1/en not_active Withdrawn
- 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 |
---|---|
JP4659828B2 (ja) | 2011-03-30 |
IL180341A0 (en) | 2007-07-04 |
JP2008505554A (ja) | 2008-02-21 |
AU2005260653A1 (en) | 2006-01-12 |
ECSP077211A (es) | 2007-02-28 |
ZA200700673B (en) | 2008-09-25 |
CN101027850A (zh) | 2007-08-29 |
NO20070422L (no) | 2007-03-30 |
BRPI0512822A (pt) | 2008-04-08 |
CN101027850B (zh) | 2011-09-28 |
CA2572090A1 (en) | 2006-01-12 |
RU2007103333A (ru) | 2008-08-10 |
WO2006004948A1 (en) | 2006-01-12 |
EP1766801A1 (en) | 2007-03-28 |
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