FI956171A0 - Taajuushypyllä toimivia solukkojärjestelmiä - Google Patents
Taajuushypyllä toimivia solukkojärjestelmiäInfo
- Publication number
- FI956171A0 FI956171A0 FI956171A FI956171A FI956171A0 FI 956171 A0 FI956171 A0 FI 956171A0 FI 956171 A FI956171 A FI 956171A FI 956171 A FI956171 A FI 956171A FI 956171 A0 FI956171 A0 FI 956171A0
- Authority
- FI
- Finland
- Prior art keywords
- communication system
- cellular communication
- frequency jump
- jump
- frequency
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving
-
- 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
- H04B1/713—Spread spectrum techniques using frequency hopping
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2649—Demodulators
- H04L27/26524—Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation
-
- 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
- H04B1/713—Spread spectrum techniques using frequency hopping
- H04B1/7136—Arrangements for generation of hop frequencies, e.g. using a bank of frequency sources, using continuous tuning or using a transform
- H04B2001/71365—Arrangements for generation of hop frequencies, e.g. using a bank of frequency sources, using continuous tuning or using a transform using continuous tuning of a single frequency source
-
- 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
- H04B1/713—Spread spectrum techniques using frequency hopping
- H04B1/7136—Arrangements for generation of hop frequencies, e.g. using a bank of frequency sources, using continuous tuning or using a transform
- H04B2001/71367—Arrangements for generation of hop frequencies, e.g. using a bank of frequency sources, using continuous tuning or using a transform using a transform
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9425962A GB2296407B (en) | 1994-12-22 | 1994-12-22 | Frequency hopped cellular mobile radio systems |
Publications (2)
Publication Number | Publication Date |
---|---|
FI956171A0 true FI956171A0 (fi) | 1995-12-21 |
FI956171A FI956171A (fi) | 1996-06-23 |
Family
ID=10766410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI956171A FI956171A (fi) | 1994-12-22 | 1995-12-21 | Taajuushypyllä toimivia solukkojärjestelmiä |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0719003A3 (fi) |
FI (1) | FI956171A (fi) |
GB (1) | GB2296407B (fi) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1066137A (ja) * | 1996-08-23 | 1998-03-06 | Sony Corp | 通信方法及び通信システム |
US6049561A (en) * | 1997-04-30 | 2000-04-11 | Raytheon Company | Radio frequency communication system |
KR100396506B1 (ko) * | 1997-09-13 | 2003-12-24 | 삼성전자주식회사 | 이중직교부호도약다중접속장치및방법 |
US6473418B1 (en) * | 1999-03-11 | 2002-10-29 | Flarion Technologies, Inc. | Orthogonal frequency division multiplexing based spread spectrum multiple access |
US6947748B2 (en) | 2000-12-15 | 2005-09-20 | Adaptix, Inc. | OFDMA with adaptive subcarrier-cluster configuration and selective loading |
KR100400265B1 (ko) * | 2001-03-21 | 2003-10-01 | 엘지전자 주식회사 | 시분할-시디엠에이 에서의 타임 슬롯 할당을 위한 타임호핑 장치 |
KR100448894B1 (ko) * | 2002-10-08 | 2004-09-18 | 한국전자통신연구원 | 다차원 직교 자원 도약 다중화 통신 방식에 기반한 디지털통신 시스템 |
WO2005050863A1 (en) * | 2003-11-24 | 2005-06-02 | Broad Mobile Co Ltd | Multicarrier cdma transmitting device and method using frequency hopping method |
US7573851B2 (en) | 2004-12-07 | 2009-08-11 | Adaptix, Inc. | Method and system for switching antenna and channel assignments in broadband wireless networks |
KR100660026B1 (ko) | 2006-10-12 | 2007-02-28 | 한국전자통신연구원 | 디지털 통신 방법 및 그 시스템 |
US8503889B2 (en) * | 2007-03-23 | 2013-08-06 | Massachusetts Institute Of Technology | Filter-based DPSK receiver |
CN102647202B (zh) * | 2012-03-31 | 2014-06-18 | 电子科技大学 | 一种基于mdfh的数据传输方法及其系统 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU628102B2 (en) * | 1988-10-21 | 1992-09-10 | Thomson-Csf | Emitter, transmission method and receiver |
US4943980A (en) * | 1989-05-02 | 1990-07-24 | Intelligent Modem Corporation | Multi-carrier high speed modem |
GB9000319D0 (en) | 1990-01-06 | 1990-06-13 | Plessey Co Ltd | Frequency hopping system for congested environments |
IL103620A0 (en) * | 1992-11-03 | 1993-04-04 | Rafael Armament Dev Authority | Spread-spectrum,frequency-hopping radiotelephone system |
EP0562868A3 (en) * | 1992-03-27 | 1994-07-06 | Wi Lan Inc | Method and apparatus for multiple access between tansceivers in wireless communication using OFDM spread spectrum. |
MX9301888A (es) * | 1992-04-10 | 1993-11-30 | Ericsson Telefon Ab L M | Acceso multiple de division de tiempo para acceso de un movil en un sistema de acceso multiple de division de codigo. |
US5263047A (en) * | 1992-07-02 | 1993-11-16 | Motorola, Inc. | Multiple cavity tuning of a transmitter output in a communication system |
GB2269075B (en) * | 1992-07-24 | 1996-04-10 | Roke Manor Research | Improvements in or relating to mobile cellular radio systems |
FR2701178A1 (fr) * | 1993-02-03 | 1994-08-05 | Philips Electronique Lab | Système de communication par étalement de spectre à multiutilisateurs. |
FR2702904B1 (fr) * | 1993-03-17 | 1995-06-30 | France Telecom | Systeme de radiocommunication numerique bidirectionnel multiporteuse, station mobile et station de base correspondantes. |
SG48266A1 (en) * | 1993-12-22 | 1998-04-17 | Philips Electronics Nv | Multicarrier frequency hopping communications system |
-
1994
- 1994-12-22 GB GB9425962A patent/GB2296407B/en not_active Expired - Lifetime
-
1995
- 1995-11-17 EP EP95118097A patent/EP0719003A3/en not_active Ceased
- 1995-12-21 FI FI956171A patent/FI956171A/fi unknown
Also Published As
Publication number | Publication date |
---|---|
FI956171A (fi) | 1996-06-23 |
GB2296407B (en) | 1999-10-06 |
EP0719003A2 (en) | 1996-06-26 |
EP0719003A3 (en) | 2000-09-13 |
GB9425962D0 (en) | 1995-02-22 |
GB2296407A (en) | 1996-06-26 |
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