DE69224278T2 - Verfahren zur Übertragung von Referenzsignalen in einem Mehrträgerdatenübertragungssystem - Google Patents
Verfahren zur Übertragung von Referenzsignalen in einem MehrträgerdatenübertragungssystemInfo
- Publication number
- DE69224278T2 DE69224278T2 DE69224278T DE69224278T DE69224278T2 DE 69224278 T2 DE69224278 T2 DE 69224278T2 DE 69224278 T DE69224278 T DE 69224278T DE 69224278 T DE69224278 T DE 69224278T DE 69224278 T2 DE69224278 T2 DE 69224278T2
- Authority
- DE
- Germany
- Prior art keywords
- frame
- channel
- symbols
- frames
- carriers
- 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.)
- Expired - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 title claims description 20
- 238000000034 method Methods 0.000 title claims description 19
- 239000000969 carrier Substances 0.000 claims description 28
- 230000002123 temporal effect Effects 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 9
- 230000001427 coherent effect Effects 0.000 claims description 7
- 238000012935 Averaging Methods 0.000 claims description 3
- 238000005562 fading Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000005433 ionosphere Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- 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
- H04L25/0204—Channel estimation of multiple channels
-
- 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
- H04L25/0212—Channel estimation of impulse response
- H04L25/0214—Channel estimation of impulse response of a single coefficient
-
- 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
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
- H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
- H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
- H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
- H04L25/0234—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals by non-linear interpolation
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9116165A FR2685839A1 (fr) | 1991-12-26 | 1991-12-26 | Procede de modulation et de demodulation coherent pour la transmission de donnees haut debit en hf. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69224278D1 DE69224278D1 (de) | 1998-03-05 |
| DE69224278T2 true DE69224278T2 (de) | 1998-05-14 |
Family
ID=9420521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69224278T Expired - Lifetime DE69224278T2 (de) | 1991-12-26 | 1992-12-21 | Verfahren zur Übertragung von Referenzsignalen in einem Mehrträgerdatenübertragungssystem |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5572548A (cg-RX-API-DMAC7.html) |
| EP (1) | EP0549445B1 (cg-RX-API-DMAC7.html) |
| CA (1) | CA2086295C (cg-RX-API-DMAC7.html) |
| DE (1) | DE69224278T2 (cg-RX-API-DMAC7.html) |
| ES (1) | ES2111624T3 (cg-RX-API-DMAC7.html) |
| FR (1) | FR2685839A1 (cg-RX-API-DMAC7.html) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6226337B1 (en) | 1993-09-10 | 2001-05-01 | Deutsche Thomson-Brandt Gmbh | Method for the transmission of reference signals in an OFDM system |
| NL9400548A (nl) * | 1994-04-07 | 1995-11-01 | Nederland Ptt | Breedband transmissie systeem. |
| FR2757334B1 (fr) * | 1996-12-13 | 1999-03-12 | Thomson Csf | Procede de transmission ou de radiodiffusion numerique |
| CH691717A5 (de) * | 1997-03-08 | 2001-09-14 | Comet Technik Ag | Kondensator mit kaltfliessgepressten Elektroden. |
| US6963570B1 (en) * | 1997-07-15 | 2005-11-08 | Comsat Corporation | Method and apparatus for adaptive loss-less compression of cell/packet headers |
| DE19857677B4 (de) * | 1998-12-14 | 2008-04-24 | Siemens Ag | Verfahren und Anordnung zur Kodierung von Symbolen für eine Übertragung über eine Funkschnittstelle eines Funk-Kommunikationssystems |
| US8343186B2 (en) | 2004-04-06 | 2013-01-01 | Arthrex, Inc. | Fully threaded suture anchor with transverse anchor pin |
| FR2805689B1 (fr) | 2000-02-29 | 2003-07-04 | Thomson Csf | Procede et dispositif d'estimation d'un canal de propagation |
| FR2813726B1 (fr) * | 2000-09-01 | 2006-06-23 | Thomson Csf | Procede et dispositif pour demoduler des signaux provenant de multi-utilisateurs |
| FR2813727B1 (fr) * | 2000-09-01 | 2002-11-29 | Thomson Csf | Procede et dispositif pour ordonner des signaux provenant de multi-utilisateurs |
| FR2829642B1 (fr) * | 2001-09-12 | 2004-01-16 | Eads Defence & Security Ntwk | Signal multiporteuses, procede de poursuite d'un canal de transmission a partir d'un tel signal et dispositif pour sa mise en oeuvre |
| US6901550B2 (en) * | 2001-10-17 | 2005-05-31 | Actelis Networks Inc. | Two-dimensional interleaving in a modem pool environment |
| JP4338532B2 (ja) * | 2003-02-21 | 2009-10-07 | 富士通株式会社 | 通信装置 |
| US7599453B2 (en) * | 2005-04-21 | 2009-10-06 | Telefonaktiebolaget L M Ericsson (Publ) | Doppler spread estimation for OFDM systems |
| JP2008537415A (ja) * | 2005-04-21 | 2008-09-11 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | Ofdmシステムにおける初期パラメータ推定 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4383316A (en) * | 1980-04-14 | 1983-05-10 | Bell Telephone Laboratories, Incorporated | Apparatus for and method of collating partitioned time disordered synchronous data streams |
| US4881245A (en) * | 1983-07-01 | 1989-11-14 | Harris Corporation | Improved signalling method and apparatus |
| US4881241A (en) * | 1988-02-24 | 1989-11-14 | Centre National D'etudes Des Telecommunications | Method and installation for digital communication, particularly between and toward moving vehicles |
| US5191576A (en) * | 1988-11-18 | 1993-03-02 | L'Etat Francais and Telediffusion de France S.A. | Method for broadcasting of digital data, notably for radio broadcasting at high throughput rate towards mobile receivers, with time frequency interlacing and analog synchronization |
| FR2658017B1 (fr) * | 1990-02-06 | 1992-06-05 | France Etat | Procede de diffusion de donnees numeriques, notamment pour la radiodiffusion a haut debit vers des mobiles, a entrelacement temps-frequence et aide a l'acquisition de la commande automatique de frequence, et recepteur correspondant. |
| US5357502A (en) * | 1990-02-06 | 1994-10-18 | France Telecom And Telediffusion De France Sa | Device for the reception of digital data time frequency interlacing, notably for radio broadcasting at high bit rate towards mobile receivers with nyquist temporal window |
| FR2658016B1 (fr) * | 1990-02-06 | 1994-01-21 | Etat Francais Cnet | Procede de diffusion de donnees numeriques, notamment pour la radiodiffusion a haut debit vers des mobiles, a entrelacement temps-frequence et demodulation coherente, et recepteur correspondant. |
| AU8185591A (en) * | 1990-06-12 | 1992-01-07 | Motorola, Inc. | Quadrature amplitude modulation synchronization method |
| US5170413A (en) * | 1990-12-24 | 1992-12-08 | Motorola, Inc. | Control strategy for reuse system assignments and handoff |
| US5243629A (en) * | 1991-09-03 | 1993-09-07 | At&T Bell Laboratories | Multi-subcarrier modulation for hdtv transmission |
-
1991
- 1991-12-26 FR FR9116165A patent/FR2685839A1/fr active Granted
-
1992
- 1992-12-21 DE DE69224278T patent/DE69224278T2/de not_active Expired - Lifetime
- 1992-12-21 EP EP92403485A patent/EP0549445B1/fr not_active Expired - Lifetime
- 1992-12-21 ES ES92403485T patent/ES2111624T3/es not_active Expired - Lifetime
- 1992-12-22 US US07/994,912 patent/US5572548A/en not_active Expired - Lifetime
- 1992-12-24 CA CA002086295A patent/CA2086295C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ES2111624T3 (es) | 1998-03-16 |
| EP0549445A1 (fr) | 1993-06-30 |
| CA2086295C (en) | 2003-07-22 |
| FR2685839A1 (fr) | 1993-07-02 |
| FR2685839B1 (cg-RX-API-DMAC7.html) | 1995-01-27 |
| US5572548A (en) | 1996-11-05 |
| EP0549445B1 (fr) | 1998-01-28 |
| DE69224278D1 (de) | 1998-03-05 |
| CA2086295A1 (en) | 1993-06-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition | ||
| R071 | Expiry of right |
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