FI112831B - Menetelmä kanavaestimaatin muodostamiseksi ja vastaanotin - Google Patents
Menetelmä kanavaestimaatin muodostamiseksi ja vastaanotin Download PDFInfo
- Publication number
- FI112831B FI112831B FI990965A FI990965A FI112831B FI 112831 B FI112831 B FI 112831B FI 990965 A FI990965 A FI 990965A FI 990965 A FI990965 A FI 990965A FI 112831 B FI112831 B FI 112831B
- Authority
- FI
- Finland
- Prior art keywords
- receiver
- averaged
- filter
- channel
- autocorrelations
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 33
- 238000001914 filtration Methods 0.000 claims description 16
- 238000012545 processing Methods 0.000 claims description 14
- 230000003111 delayed effect Effects 0.000 claims description 13
- 238000012935 Averaging Methods 0.000 claims description 12
- 238000013213 extrapolation Methods 0.000 claims description 3
- 230000000644 propagated effect Effects 0.000 claims 2
- 230000002123 temporal effect Effects 0.000 claims 2
- 230000003044 adaptive effect Effects 0.000 description 5
- 230000000875 corresponding effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 4
- 239000013598 vector Substances 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 241000287828 Gallus gallus Species 0.000 description 2
- 238000005311 autocorrelation function Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 101100409047 Chlorobaculum tepidum (strain ATCC 49652 / DSM 12025 / NBRC 103806 / TLS) ppk2 gene Proteins 0.000 description 1
- QIVBCDIJIAJPQS-VIFPVBQESA-N L-tryptophane Chemical compound C1=CC=C2C(C[C@H](N)C(O)=O)=CNC2=C1 QIVBCDIJIAJPQS-VIFPVBQESA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 125000000446 sulfanediyl group Chemical group *S* 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- H04L25/0202—Channel estimation
-
- 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
-
- 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
- H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
-
- 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
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI990965A FI112831B (fi) | 1999-04-28 | 1999-04-28 | Menetelmä kanavaestimaatin muodostamiseksi ja vastaanotin |
| BR0010088-9A BR0010088A (pt) | 1999-04-28 | 2000-04-27 | Método de estimação de canal usado em um sistema de rádio e receptor em um sistema de rádio |
| PCT/FI2000/000369 WO2000067389A1 (en) | 1999-04-28 | 2000-04-27 | Method of forming channel estimate, and receiver |
| EP00925309A EP1181781B1 (de) | 1999-04-28 | 2000-04-27 | Verfahren zum erstellen einer kanalestimation und empfänger |
| DE60041964T DE60041964D1 (de) | 1999-04-28 | 2000-04-27 | Empfänger |
| JP2000616134A JP3602450B2 (ja) | 1999-04-28 | 2000-04-27 | チャンネル推定を形成する方法及び受信器 |
| ES00925309T ES2325572T3 (es) | 1999-04-28 | 2000-04-27 | Metodo de formacion de estimacion de canal, y receptor. |
| CN00806777.5A CN1221084C (zh) | 1999-04-28 | 2000-04-27 | 生成信道估计的方法以及接收机 |
| AU44066/00A AU4406600A (en) | 1999-04-28 | 2000-04-27 | Method of forming channel estimate, and receiver |
| US09/983,773 US6580772B2 (en) | 1999-04-28 | 2001-10-25 | Method of forming channel estimate, and receiver |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI990965 | 1999-04-28 | ||
| FI990965A FI112831B (fi) | 1999-04-28 | 1999-04-28 | Menetelmä kanavaestimaatin muodostamiseksi ja vastaanotin |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI990965A0 FI990965A0 (fi) | 1999-04-28 |
| FI990965A FI990965A (fi) | 2000-10-29 |
| FI112831B true FI112831B (fi) | 2004-01-15 |
Family
ID=8554544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI990965A FI112831B (fi) | 1999-04-28 | 1999-04-28 | Menetelmä kanavaestimaatin muodostamiseksi ja vastaanotin |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6580772B2 (de) |
| EP (1) | EP1181781B1 (de) |
| JP (1) | JP3602450B2 (de) |
| CN (1) | CN1221084C (de) |
| AU (1) | AU4406600A (de) |
| BR (1) | BR0010088A (de) |
| DE (1) | DE60041964D1 (de) |
| ES (1) | ES2325572T3 (de) |
| FI (1) | FI112831B (de) |
| WO (1) | WO2000067389A1 (de) |
Families Citing this family (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6314131B1 (en) * | 2000-03-24 | 2001-11-06 | Cadence Design Systems, Inc. | Method and system for channel estimation using multi-slot averaged interpolation |
| JP3581294B2 (ja) | 2000-03-31 | 2004-10-27 | 株式会社東芝 | 受信装置 |
| US6804310B1 (en) * | 2000-11-03 | 2004-10-12 | Koninklijke Philips Electronics N.V. | Decision feedback loop apparatus and method for channel estimation and de-rotation using burst pilot bits |
| JP3573745B2 (ja) * | 2001-07-13 | 2004-10-06 | 川崎マイクロエレクトロニクス株式会社 | Ｃｄｍａ受信装置およびｃｄｍａ受信方法 |
| KR101023376B1 (ko) * | 2002-01-07 | 2011-03-18 | 엔엑스피 비 브이 | 레이크 수신기, 핑거, 신호 보상 시스템, 휴대형 유닛, 네트워크 유닛, 신호 보상 방법 및 컴퓨터 판독가능 저장 매체 |
| GB2386038A (en) | 2002-02-27 | 2003-09-03 | Motorola Inc | Channel estimation in a radio receiver |
| US7181085B1 (en) | 2002-04-04 | 2007-02-20 | Acorn Technologies, Inc. | Adaptive multistage wiener filter |
| US20030235237A1 (en) * | 2002-06-20 | 2003-12-25 | Lev Smolyar | Spread-spectrum channel searcher and method for accelerating searching in a CDMA receiver |
| US20040062217A1 (en) * | 2002-09-30 | 2004-04-01 | Farrokh Abrishamkar | Method and apparatus for pilot estimation using an adaptive prediction error method with a kalman filter and a gauss-newton algorithm |
| US7042928B2 (en) * | 2002-10-23 | 2006-05-09 | Qualcomm Incorporated | Method and apparatus for pilot estimation using prediction error method |
| DE10250361B4 (de) | 2002-10-29 | 2009-12-24 | Infineon Technologies Ag | Vorrichtung und Verfahren zur Aufbereitung von Pilotsymbolen für eine Kanalschätzung mittels adaptiver Tiefpassfilterung |
| US7257377B2 (en) | 2003-02-18 | 2007-08-14 | Qualcomm, Incorporated | Systems and methods for improving channel estimation |
| US20040161057A1 (en) * | 2003-02-18 | 2004-08-19 | Malladi Durga Prasad | Communication receiver with a rake-based adaptive equalizer |
| US7272176B2 (en) | 2003-02-18 | 2007-09-18 | Qualcomm Incorporated | Communication receiver with an adaptive equalizer |
| DE10322943B4 (de) * | 2003-05-21 | 2005-10-06 | Infineon Technologies Ag | Hardware-Vorrichtung zur Aufbereitung von Pilotsymbolen für eine Kanalschätzung mittels adaptiver Tiefpassfilterung |
| US7366137B2 (en) * | 2003-05-31 | 2008-04-29 | Qualcomm Incorporated | Signal-to-noise estimation in wireless communication devices with receive diversity |
| US7428262B2 (en) * | 2003-08-13 | 2008-09-23 | Motorola, Inc. | Channel estimation in a rake receiver of a CDMA communication system |
| US7869488B2 (en) | 2003-08-28 | 2011-01-11 | Qualcomm Incorporated | Method and apparatus for removing code aliases when using short synchronization codes |
| US8401128B2 (en) * | 2003-08-28 | 2013-03-19 | Telefonaktiebolaget L M Ericsson (Publ) | Method and system for adaptable receiver parameters |
| US6968832B1 (en) * | 2004-05-06 | 2005-11-29 | International Engine Intellectual Property Company, Llc | Connection system for exhaust gas recirculation (EGR) |
| US7599426B2 (en) * | 2004-07-19 | 2009-10-06 | Acorn Technologies, Inc. | Use of adaptive filters in multiple access wireless systems employing predictable signals |
| KR101142996B1 (ko) * | 2004-12-31 | 2012-05-08 | 재단법인서울대학교산학협력재단 | 표시 장치 및 그 구동 방법 |
| DE102005026093B4 (de) * | 2005-06-07 | 2007-07-05 | Atmel Germany Gmbh | Detektionseinheit |
| DE102005026091B4 (de) | 2005-06-07 | 2019-09-05 | Atmel Corp. | Verfahren und Empfangseinheit zur Detektion von Datensymbolen |
| US8009722B2 (en) * | 2007-12-12 | 2011-08-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Multi-pass parameter estimation for G-Rake receiver |
| US8386549B1 (en) | 2008-03-04 | 2013-02-26 | Acorn Technologies, Inc. | Reduced complexity adaptive multistage wiener filter |
| US7700416B1 (en) | 2008-04-25 | 2010-04-20 | Acorn Technologies, Inc. | Tensile strained semiconductor on insulator using elastic edge relaxation and a sacrificial stressor layer |
| KR101488787B1 (ko) * | 2008-07-08 | 2015-02-03 | 삼성전자주식회사 | 이동통신 단말기에서 도플러 주파수 추정 방법 및 장치 |
| US7851325B1 (en) | 2008-09-12 | 2010-12-14 | Acorn Technologies, Inc. | Strained semiconductor using elastic edge relaxation, a buried stressor layer and a sacrificial stressor layer |
| US8600312B2 (en) * | 2010-01-25 | 2013-12-03 | Qualcomm Incorporated | Method and apparatus for spectral sensing |
| CN102104560B (zh) * | 2011-03-30 | 2013-10-02 | 华为技术有限公司 | 信道估计方法及装置 |
| US9544083B2 (en) * | 2011-11-21 | 2017-01-10 | Broadcom Corporation | Secondary synchronization signal detection with interference cancelation for LTE |
| CN103595664B (zh) | 2012-08-17 | 2016-12-07 | 中兴通讯股份有限公司 | 一种多接收天线系统中信道估计方法和装置 |
| CN109845102B (zh) * | 2016-03-31 | 2023-07-28 | 凝聚技术公司 | 使用正交时间频率空间调制的导频信号的信道获取 |
| US10394985B2 (en) | 2017-01-11 | 2019-08-27 | Samsung Electronics Co., Ltd. | Apparatus and method for modeling random process using reduced length least-squares autoregressive parameter estimation |
| CN107733464A (zh) * | 2017-11-01 | 2018-02-23 | 中山大学花都产业科技研究院 | 一种Chirp扩频通信系统的联合检测方法及系统 |
| CN110518957B (zh) * | 2019-07-30 | 2020-11-06 | 北京大学 | 一种开放无线信道中旁路网络导引方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4102151A1 (de) * | 1991-01-25 | 1992-07-30 | Philips Patentverwaltung | Empfaenger fuer ein digitales uebertragungssystem |
| FI97180C (fi) * | 1994-11-03 | 1996-10-25 | Nokia Mobile Phones Ltd | Menetelmä kanavan estimoimiseksi ja vastaanotin |
| US5712877A (en) | 1995-05-26 | 1998-01-27 | Simon Fraser University | Pilot-symbol aided continuous phase modulation system |
| WO2000025530A2 (de) | 1998-10-27 | 2000-05-04 | Siemens Aktiengesellschaft | Verfahren und anordnung zum schätzen von übertragungskanälen in mobilfunksystemen der dritten generation |
-
1999
- 1999-04-28 FI FI990965A patent/FI112831B/fi not_active IP Right Cessation
-
2000
- 2000-04-27 AU AU44066/00A patent/AU4406600A/en not_active Abandoned
- 2000-04-27 ES ES00925309T patent/ES2325572T3/es not_active Expired - Lifetime
- 2000-04-27 WO PCT/FI2000/000369 patent/WO2000067389A1/en active Application Filing
- 2000-04-27 BR BR0010088-9A patent/BR0010088A/pt not_active IP Right Cessation
- 2000-04-27 EP EP00925309A patent/EP1181781B1/de not_active Expired - Lifetime
- 2000-04-27 DE DE60041964T patent/DE60041964D1/de not_active Expired - Lifetime
- 2000-04-27 CN CN00806777.5A patent/CN1221084C/zh not_active Expired - Fee Related
- 2000-04-27 JP JP2000616134A patent/JP3602450B2/ja not_active Expired - Fee Related
-
2001
- 2001-10-25 US US09/983,773 patent/US6580772B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ES2325572T3 (es) | 2009-09-09 |
| BR0010088A (pt) | 2002-01-08 |
| CN1221084C (zh) | 2005-09-28 |
| EP1181781A1 (de) | 2002-02-27 |
| EP1181781B1 (de) | 2009-04-08 |
| JP2002543735A (ja) | 2002-12-17 |
| DE60041964D1 (de) | 2009-05-20 |
| US20020097782A1 (en) | 2002-07-25 |
| FI990965A (fi) | 2000-10-29 |
| JP3602450B2 (ja) | 2004-12-15 |
| FI990965A0 (fi) | 1999-04-28 |
| US6580772B2 (en) | 2003-06-17 |
| WO2000067389A1 (en) | 2000-11-09 |
| CN1348639A (zh) | 2002-05-08 |
| AU4406600A (en) | 2000-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FI112831B (fi) | Menetelmä kanavaestimaatin muodostamiseksi ja vastaanotin | |
| CA2361422C (en) | Timing reproducing device and demodulator | |
| US5719899A (en) | Multiple access digital transmission system and a radio base station and a receiver for use in such a system | |
| US5790537A (en) | Interference suppression in DS-CDMA systems | |
| US7471749B2 (en) | Channel parameters estimation in a receiver | |
| US4862483A (en) | Channel estimation and detection for digital communication systems | |
| US5377226A (en) | Fractionally-spaced equalizer for a DS-CDMA system | |
| EP0944977B1 (de) | Verfahren und gerät zur detektion eines digitalen symbols unter verwendung von antwortschätzungen des übertragungsmediums | |
| US5694388A (en) | CDMA demodulator and demodulation method | |
| CA2189121C (en) | Diversity receiver for signals with multipath time dispersion | |
| JP3831229B2 (ja) | 伝搬路特性推定装置 | |
| EP1224780B1 (de) | Basisbandprozessor mit vorausschau der parameterschätzungsfähigkeiten | |
| EP0615347A1 (de) | Adaptiver entzerrungsempfänger und maximalwahrscheinlichkeits-sequenz-bewertungsempfänger | |
| EP1568154A1 (de) | ENTZERRER MIT NIEDRIGER KOMPLEXITûT F R EINEN FUNKEMPFûNGER | |
| JPH10327126A (ja) | Ｃｄｍａ受信機 | |
| EP1402693A1 (de) | Kanalschätzung in cdma-kommunikationssystemen mittels sowohl eines pilotkanals mit niedrigerer leistung als auch eines datenkanals mit höherer leistung | |
| JP2000261397A (ja) | フレーム同期回路及びフレームタイミング抽出方法 | |
| US7017104B1 (en) | Method and system for decoding block codes by calculating a path metric according to a decision feedback sequence estimation algorithm | |
| Kamel et al. | A Linear Prediction Based Estimation of Signal‐to‐Noise Ratio in AWGN Channel | |
| JPH10336083A (ja) | アダプティブアレイ受信機 | |
| JP3779554B2 (ja) | 周波数オフセット推定方法及び周波数オフセット推定器 | |
| JPH08331025A (ja) | 適応干渉キャンセル受信機 | |
| JP2966673B2 (ja) | ダイバーシチ形同期検波回路 | |
| JP2000013128A (ja) | アダプティブアレイ送受信機 | |
| WO2003013016A1 (fr) | Dispositif de detection conjointe de codes cdma pour liaison descendante a trajets multiples |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MA | Patent expired |