WO1998044657A1 - Procede de transmission amrt sur une pluralite de frequences porteuses, signal et recepteur correspondants - Google Patents
Procede de transmission amrt sur une pluralite de frequences porteuses, signal et recepteur correspondants Download PDFInfo
- Publication number
- WO1998044657A1 WO1998044657A1 PCT/FR1998/000642 FR9800642W WO9844657A1 WO 1998044657 A1 WO1998044657 A1 WO 1998044657A1 FR 9800642 W FR9800642 W FR 9800642W WO 9844657 A1 WO9844657 A1 WO 9844657A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carrier frequencies
- carrier
- transmission
- frequency
- exclusively dedicated
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2615—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using hybrid frequency-time division multiple access [FDMA-TDMA]
Definitions
- TDMA transmission method on a plurality of carrier frequencies, corresponding signal and receiver.
- the field of the invention is that of the transmission of signals using a plurality of carrier frequencies, according to a TDMA access technique (time division multiplex access, or TDMA in English).
- TDMA access technique time division multiplex access, or TDMA in English
- the invention relates to the transmission of signaling data in such systems.
- the invention finds applications in numerous fields. For example, it can be implemented for carrying out data transmission via satellites to isolated and / or difficult to access sites, and more generally in all cases of access networks, in particular mobile networks.
- Multicarrier TDMA systems are already known.
- the signals are organized in frames, each consisting of a predetermined number (for example
- time slots 16 (time slots" in English).
- one of the time intervals of each frame conventionally the first, is reserved for the transmission of the signaling.
- FIG. 1 illustrates the corresponding signal structure.
- Each time interval 11 of each frame 12 is allocated in its entirety (that is to say for all the carriers) to the signaling.
- the other time intervals 13 are dedicated to the transmission of useful data.
- the invention particularly aims to overcome this drawback of the state of the art.
- an objective of the invention is to provide a multi-carrier TDMA transmission method, and a corresponding signal, which optimizes the allocation of transmission resources between the signaling data and the information-carrying data (or useful data). .
- the invention aims to provide such a method, which is well suited to systems implementing a high number of carrier frequencies.
- Another object of the invention is to provide such a method which is simple to implement, at the transmission level, and simple to operate at the reception level.
- the invention also aims to provide receivers of signals transmitted by such a method, which are simple and inexpensive, and in particular which do not add any complexity compared to receivers of known types.
- the invention is based on an approach opposite to the known approach: instead of considering a temporal distribution of the signaling, an approach is proposed in the frequency domain.
- This technique makes it possible to introduce great flexibility, in particular when the number of carrier frequencies is high.
- This technique turns out to be advantageous in fact as soon as the number of carrier frequencies forming said first set is less than or equal to the number of time intervals forming the transmitted frames.
- the fact that one or more carrier frequencies are permanently associated with signaling data simplifies the operation of the receivers, in particular in the initialization phase of the communication.
- Said carrier frequencies forming said first set can be grouped or not, and placed at any locations.
- the invention also relates to receivers of signals transmitted according to the method described above. These receivers include in particular means for selecting one of the carrier frequencies forming said plurality of carrier frequencies ensuring: at times specified by said signaling data, the carrier frequency of said second set carrying useful data intended for it; and the rest of the time, the carrier frequency belonging to said first set which is assigned to it, so as to obtain said signaling data.
- the invention also relates to the structure of the TDMA signal produced in particular within the framework of this method.
- FIG. 2 shows the structure of a multi-carrier TDMA signal according to the invention, in which two carrier frequencies are reserved for the transmission of the signaling.
- the structure of the signal according to the invention is therefore illustrated in FIG. 2. It comprises
- n is worth one or a few carriers but remains very small in front of N.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002256554A CA2256554A1 (fr) | 1997-03-28 | 1998-03-27 | Procede de transmission amrt sur une pluralite de frequences porteuses, signal et recepteur correspondants |
JP10539918A JP2000513172A (ja) | 1997-03-28 | 1998-03-27 | 複数の搬送周波数のtdma送信方法、ならびに対応する信号および受信機 |
DE69837137T DE69837137D1 (de) | 1997-03-28 | 1998-03-27 | Tdma-übertragungsverfahren auf mehreren trägerfrequenzen: entsprechende signale und empfänger |
US09/180,775 US6438142B1 (en) | 1997-03-28 | 1998-03-27 | Method for TDMA transmission on a plurality of carrier frequencies, corresponding signal and receiver |
EP98917269A EP0920749B1 (fr) | 1997-03-28 | 1998-03-27 | Procede de transmission amrt sur une pluralite de frequences porteuses: signal et recepteur correspondants |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR97/03891 | 1997-03-28 | ||
FR9703891A FR2761556B1 (fr) | 1997-03-28 | 1997-03-28 | Procede de transmission amrt sur une pluralite de frequences porteuses, signal et recepteur correspondants |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998044657A1 true WO1998044657A1 (fr) | 1998-10-08 |
Family
ID=9505342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1998/000642 WO1998044657A1 (fr) | 1997-03-28 | 1998-03-27 | Procede de transmission amrt sur une pluralite de frequences porteuses, signal et recepteur correspondants |
Country Status (8)
Country | Link |
---|---|
US (1) | US6438142B1 (fr) |
EP (1) | EP0920749B1 (fr) |
JP (1) | JP2000513172A (fr) |
CA (1) | CA2256554A1 (fr) |
DE (1) | DE69837137D1 (fr) |
FR (1) | FR2761556B1 (fr) |
ID (1) | ID20550A (fr) |
WO (1) | WO1998044657A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004075437A1 (fr) * | 2003-02-24 | 2004-09-02 | Siemens Aktiengesellschaft | Procede pour transmettre des signaux dans un systeme de communication radio |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0959636A1 (fr) * | 1998-05-18 | 1999-11-24 | TELEFONAKTIEBOLAGET L M ERICSSON (publ) | Systéme de radiocommunication AMRT multicellulaire, à travers des sous-ensembles limités de tranches de temps |
US6128330A (en) | 1998-11-24 | 2000-10-03 | Linex Technology, Inc. | Efficient shadow reduction antenna system for spread spectrum |
FI111319B (fi) | 1999-06-21 | 2003-06-30 | Nokia Corp | Yhteydenmuodostusmenetelmä ja radiojärjestelmä |
US7974227B1 (en) * | 2003-12-02 | 2011-07-05 | Thomas Stanley Seay | Relayed signal communications |
US20090257420A1 (en) * | 2008-04-10 | 2009-10-15 | Honeywell International Inc. | Process Control System With Enhanced Communication Throughput Using Frequency Agility |
US20120114134A1 (en) * | 2010-08-25 | 2012-05-10 | Qualcomm Incorporated | Methods and apparatus for control and traffic signaling in wireless microphone transmission systems |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0329997A2 (fr) * | 1988-02-22 | 1989-08-30 | Motorola, Inc. | Groupes de réutilisation pour surveillance du balayage dans les systèmes cellulaires numériques |
WO1991013502A1 (fr) * | 1990-02-27 | 1991-09-05 | Motorola, Inc. | Sauts entre frequences porteuses partagees |
WO1992010885A1 (fr) * | 1990-12-04 | 1992-06-25 | Telenokia Oy | Systeme radio |
WO1993022849A1 (fr) * | 1992-05-06 | 1993-11-11 | Nokia Telecommunications Oy | Systeme cellulaire |
WO1995012936A1 (fr) * | 1993-11-01 | 1995-05-11 | Telefonaktiebolaget Lm Ericsson | Procede et appareil de localisation d'un canal de commande numeriques dans un systeme de communication radiotelephonique |
WO1995029562A2 (fr) * | 1994-04-20 | 1995-11-02 | Nokia Telecommunications Oy | Procede facilitant l'etablissement d'appels dans un reseau cellulaire, et station de base |
GB2294845A (en) * | 1994-11-01 | 1996-05-08 | Hitachi Ltd | Slots Assignment Method for Control Channel Signal in a Mobile Communications System |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE9200607D0 (sv) * | 1992-02-28 | 1992-02-28 | Ericsson Telefon Ab L M | Communication methods and mean in a tdma cellular mobile radio system |
US5381443A (en) * | 1992-10-02 | 1995-01-10 | Motorola Inc. | Method and apparatus for frequency hopping a signalling channel in a communication system |
US5506863A (en) * | 1993-08-25 | 1996-04-09 | Motorola, Inc. | Method and apparatus for operating with a hopping control channel in a communication system |
US5537434A (en) * | 1993-10-25 | 1996-07-16 | Telefonaktiebolaget Lm Ericsson | Frequency hopping control channel in a radio communication system |
US5805633A (en) * | 1995-09-06 | 1998-09-08 | Telefonaktiebolaget L M Ericsson | Method and apparatus for frequency planning in a multi-system cellular communication network |
-
1997
- 1997-03-28 FR FR9703891A patent/FR2761556B1/fr not_active Expired - Fee Related
-
1998
- 1998-03-27 WO PCT/FR1998/000642 patent/WO1998044657A1/fr active IP Right Grant
- 1998-03-27 EP EP98917269A patent/EP0920749B1/fr not_active Expired - Lifetime
- 1998-03-27 US US09/180,775 patent/US6438142B1/en not_active Expired - Fee Related
- 1998-03-27 CA CA002256554A patent/CA2256554A1/fr not_active Abandoned
- 1998-03-27 DE DE69837137T patent/DE69837137D1/de not_active Expired - Fee Related
- 1998-03-27 ID IDW980126D patent/ID20550A/id unknown
- 1998-03-27 JP JP10539918A patent/JP2000513172A/ja active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0329997A2 (fr) * | 1988-02-22 | 1989-08-30 | Motorola, Inc. | Groupes de réutilisation pour surveillance du balayage dans les systèmes cellulaires numériques |
WO1991013502A1 (fr) * | 1990-02-27 | 1991-09-05 | Motorola, Inc. | Sauts entre frequences porteuses partagees |
WO1992010885A1 (fr) * | 1990-12-04 | 1992-06-25 | Telenokia Oy | Systeme radio |
WO1993022849A1 (fr) * | 1992-05-06 | 1993-11-11 | Nokia Telecommunications Oy | Systeme cellulaire |
WO1995012936A1 (fr) * | 1993-11-01 | 1995-05-11 | Telefonaktiebolaget Lm Ericsson | Procede et appareil de localisation d'un canal de commande numeriques dans un systeme de communication radiotelephonique |
WO1995029562A2 (fr) * | 1994-04-20 | 1995-11-02 | Nokia Telecommunications Oy | Procede facilitant l'etablissement d'appels dans un reseau cellulaire, et station de base |
GB2294845A (en) * | 1994-11-01 | 1996-05-08 | Hitachi Ltd | Slots Assignment Method for Control Channel Signal in a Mobile Communications System |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004075437A1 (fr) * | 2003-02-24 | 2004-09-02 | Siemens Aktiengesellschaft | Procede pour transmettre des signaux dans un systeme de communication radio |
US7656962B2 (en) | 2003-02-24 | 2010-02-02 | Siemens Aktiengesellschaft | Method for transmitting signals in a radio communication system |
Also Published As
Publication number | Publication date |
---|---|
FR2761556A1 (fr) | 1998-10-02 |
CA2256554A1 (fr) | 1998-10-08 |
EP0920749B1 (fr) | 2007-02-21 |
JP2000513172A (ja) | 2000-10-03 |
US6438142B1 (en) | 2002-08-20 |
DE69837137D1 (de) | 2007-04-05 |
EP0920749A1 (fr) | 1999-06-09 |
FR2761556B1 (fr) | 1999-04-30 |
ID20550A (id) | 1999-01-14 |
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