CA2572090A1 - Procede et appareil pour supprimer des interferences de pilote dans un systeme de communication sans fil - Google Patents
Procede et appareil pour supprimer des interferences de pilote dans un systeme de communication sans fil Download PDFInfo
- Publication number
- CA2572090A1 CA2572090A1 CA002572090A CA2572090A CA2572090A1 CA 2572090 A1 CA2572090 A1 CA 2572090A1 CA 002572090 A CA002572090 A CA 002572090A CA 2572090 A CA2572090 A CA 2572090A CA 2572090 A1 CA2572090 A1 CA 2572090A1
- Authority
- CA
- Canada
- Prior art keywords
- signal
- pilot
- estimate
- channel estimate
- instance
- Prior art date
- Legal status (The legal status 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 status listed.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims abstract description 93
- 238000004891 communication Methods 0.000 title claims abstract description 29
- 230000007480 spreading Effects 0.000 claims abstract description 57
- 238000001914 filtration Methods 0.000 claims abstract description 46
- 230000004044 response Effects 0.000 claims abstract description 31
- 239000000872 buffer Substances 0.000 claims description 66
- 230000008569 process Effects 0.000 claims description 41
- 239000012723 sample buffer Substances 0.000 claims description 38
- 238000012545 processing Methods 0.000 claims description 36
- 230000006870 function Effects 0.000 claims description 34
- 239000000523 sample Substances 0.000 claims description 32
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 2
- 230000002452 interceptive effect Effects 0.000 abstract description 17
- 238000009825 accumulation Methods 0.000 description 37
- 238000010586 diagram Methods 0.000 description 25
- 238000013461 design Methods 0.000 description 17
- 230000000875 corresponding effect Effects 0.000 description 11
- 238000012952 Resampling Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 3
- 230000001143 conditioned effect Effects 0.000 description 3
- 238000005562 fading Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
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- 238000012935 Averaging Methods 0.000 description 1
- 230000018199 S phase Effects 0.000 description 1
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- 238000005311 autocorrelation function Methods 0.000 description 1
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- 230000003111 delayed effect Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
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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)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58452704P | 2004-06-30 | 2004-06-30 | |
| US60/584,527 | 2004-06-30 | ||
| PCT/US2005/023307 WO2006004948A1 (fr) | 2004-06-30 | 2005-06-30 | Procede et appareil pour supprimer des interferences de pilote dans un systeme de communication sans fil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2572090A1 true CA2572090A1 (fr) | 2006-01-12 |
Family
ID=34993281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002572090A Abandoned CA2572090A1 (fr) | 2004-06-30 | 2005-06-30 | Procede et appareil pour supprimer des interferences de pilote dans un systeme de communication sans fil |
Country Status (13)
| Country | Link |
|---|---|
| EP (1) | EP1766801A1 (fr) |
| JP (1) | JP4659828B2 (fr) |
| CN (1) | CN101027850B (fr) |
| AU (1) | AU2005260653A1 (fr) |
| BR (1) | BRPI0512822A (fr) |
| CA (1) | CA2572090A1 (fr) |
| EC (1) | ECSP077211A (fr) |
| IL (1) | IL180341A0 (fr) |
| MX (1) | MX2007000276A (fr) |
| NO (1) | NO20070422L (fr) |
| RU (1) | RU2007103333A (fr) |
| WO (1) | WO2006004948A1 (fr) |
| ZA (1) | ZA200700673B (fr) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9071344B2 (en) | 2005-08-22 | 2015-06-30 | Qualcomm Incorporated | Reverse link interference cancellation |
| US8611305B2 (en) | 2005-08-22 | 2013-12-17 | Qualcomm Incorporated | Interference cancellation for wireless communications |
| 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 |
| US9237515B2 (en) * | 2008-08-01 | 2016-01-12 | Qualcomm Incorporated | Successive detection and cancellation for cell pilot detection |
| US9277487B2 (en) * | 2008-08-01 | 2016-03-01 | Qualcomm Incorporated | Cell detection with interference cancellation |
| 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 |
| JP2013512593A (ja) | 2009-11-27 | 2013-04-11 | クゥアルコム・インコーポレイテッド | 無線通信における容量の増加 |
| CN102668612B (zh) | 2009-11-27 | 2016-03-02 | 高通股份有限公司 | 增加无线通信中的容量 |
| 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 |
| 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 BR BRPI0512822-6A patent/BRPI0512822A/pt not_active IP Right Cessation
- 2005-06-30 RU RU2007103333/09A patent/RU2007103333A/ru not_active Application Discontinuation
- 2005-06-30 AU AU2005260653A patent/AU2005260653A1/en not_active Abandoned
- 2005-06-30 EP EP05764210A patent/EP1766801A1/fr not_active Withdrawn
- 2005-06-30 JP JP2007519440A patent/JP4659828B2/ja not_active Expired - Fee Related
- 2005-06-30 MX MX2007000276A patent/MX2007000276A/es unknown
- 2005-06-30 CA CA002572090A patent/CA2572090A1/fr not_active Abandoned
- 2005-06-30 CN CN2005800267505A patent/CN101027850B/zh not_active Expired - Fee Related
- 2005-06-30 WO PCT/US2005/023307 patent/WO2006004948A1/fr active Application Filing
-
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 |
|---|---|
| NO20070422L (no) | 2007-03-30 |
| IL180341A0 (en) | 2007-07-04 |
| RU2007103333A (ru) | 2008-08-10 |
| CN101027850A (zh) | 2007-08-29 |
| AU2005260653A1 (en) | 2006-01-12 |
| BRPI0512822A (pt) | 2008-04-08 |
| EP1766801A1 (fr) | 2007-03-28 |
| ZA200700673B (en) | 2008-09-25 |
| JP2008505554A (ja) | 2008-02-21 |
| CN101027850B (zh) | 2011-09-28 |
| ECSP077211A (es) | 2007-02-28 |
| JP4659828B2 (ja) | 2011-03-30 |
| WO2006004948A1 (fr) | 2006-01-12 |
| MX2007000276A (es) | 2007-06-15 |
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| JP4383850B2 (ja) | 無線通信システムにおけるパイロット干渉を除去するための方法および装置 | |
| US20050013350A1 (en) | Method and apparatus for canceling pilot interference in a wireless communication system | |
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| US6067292A (en) | Pilot interference cancellation for a coherent wireless code division multiple access receiver | |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |