DE69722489D1 - Zellulares Funksystem mit Gleichwellen-Übertragung von verzögerungseinstellbaren Abwärtssignalen zu Mobilstationen durch angrenzende Basisstationen - Google Patents
Zellulares Funksystem mit Gleichwellen-Übertragung von verzögerungseinstellbaren Abwärtssignalen zu Mobilstationen durch angrenzende BasisstationenInfo
- Publication number
- DE69722489D1 DE69722489D1 DE69722489T DE69722489T DE69722489D1 DE 69722489 D1 DE69722489 D1 DE 69722489D1 DE 69722489 T DE69722489 T DE 69722489T DE 69722489 T DE69722489 T DE 69722489T DE 69722489 D1 DE69722489 D1 DE 69722489D1
- Authority
- DE
- Germany
- Prior art keywords
- delay
- radio system
- wave transmission
- cellular radio
- adjacent base
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0667—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal
- H04B7/0671—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal using different delays between antennas
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8057837A JP2809179B2 (ja) | 1996-03-14 | 1996-03-14 | 無線同報通信システム |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69722489D1 true DE69722489D1 (de) | 2003-07-10 |
DE69722489T2 DE69722489T2 (de) | 2003-12-18 |
Family
ID=13067081
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69722489T Expired - Fee Related DE69722489T2 (de) | 1996-03-14 | 1997-03-13 | Zellulares Funksystem mit Gleichwellen-Übertragung von verzögerungseinstellbaren Abwärtssignalen zu Mobilstationen durch angrenzende Basisstationen |
Country Status (6)
Country | Link |
---|---|
US (1) | US5905718A (de) |
EP (1) | EP0795970B1 (de) |
JP (1) | JP2809179B2 (de) |
AU (1) | AU711362B2 (de) |
CA (1) | CA2199922C (de) |
DE (1) | DE69722489T2 (de) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5761605A (en) | 1996-10-11 | 1998-06-02 | Northpoint Technology, Ltd. | Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals |
FR2764467B1 (fr) * | 1997-06-09 | 1999-07-30 | Alsthom Cge Alcatel | Transmission du canal d'informations pilotes de chaque operateur dans un systeme de radiocommunication avec des stations mobiles |
FI107097B (fi) | 1997-09-24 | 2001-05-31 | Nokia Networks Oy | Kohdistettu yleislähetys radioverkossa |
US6314082B1 (en) * | 1997-11-17 | 2001-11-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Broadcast network selection techniques for radiocommunication systems |
JP3348196B2 (ja) * | 1998-03-06 | 2002-11-20 | 独立行政法人通信総合研究所 | 無線伝送システム |
FI112135B (fi) * | 1998-03-31 | 2003-10-31 | Nokia Corp | Menetelmä viiveen säätämiseksi |
US6519262B1 (en) * | 1998-06-10 | 2003-02-11 | Trw Inc. | Time division multiplex approach for multiple transmitter broadcasting |
CA2243680A1 (en) * | 1998-07-22 | 2000-01-22 | Newbridge Networks Corporation | Cell stream replicating device |
JP3022530B1 (ja) | 1998-12-07 | 2000-03-21 | 日本電気株式会社 | Cdma無線通信システムにおけるマルチキャスト通信方式 |
US7319686B1 (en) * | 1999-03-18 | 2008-01-15 | Industrial Technology Research Institute | Frame synchronization in multi-cell systems with a data interface |
US7139324B1 (en) | 2000-06-02 | 2006-11-21 | Nokia Networks Oy | Closed loop feedback system for improved down link performance |
US7284050B1 (en) | 2001-03-26 | 2007-10-16 | Cisco Technology, Inc. | Method and system for a voice multicast hardware accelerator |
DE60123940T2 (de) * | 2001-07-13 | 2007-05-24 | Mitsubishi Electric Information Technology Centre Europe B.V. | Mehrbenutzerdetektion in einem MC-CDMA Nachrichtensystem |
EP1560445A3 (de) * | 2004-01-28 | 2008-06-25 | NTT DoCoMo, Inc. | Funknetzkontroller und Steuerungsverfahren für Mobilkommunikation |
JP2007096943A (ja) * | 2005-09-29 | 2007-04-12 | Oki Electric Ind Co Ltd | 移動体通信装置 |
EP2590343B1 (de) | 2009-03-12 | 2017-12-27 | Alcatel Lucent | Antennensynchronisierung für kohärentes netzwerk-mimo |
US9401784B2 (en) * | 2009-10-21 | 2016-07-26 | Qualcomm Incorporated | Time and frequency acquisition and tracking for OFDMA wireless systems |
US9585121B2 (en) | 2012-01-05 | 2017-02-28 | Motorola Solutions, Inc. | Method and apparatus for simulcasting within a communication system |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55120244A (en) * | 1979-03-08 | 1980-09-16 | Nec Corp | Phase supervisory system |
US4696052A (en) * | 1985-12-31 | 1987-09-22 | Motorola Inc. | Simulcast transmitter apparatus having automatic synchronization capability |
US4718108A (en) * | 1986-05-19 | 1988-01-05 | Motorola, Inc. | Improved multiple site communication system |
SE460449B (sv) * | 1988-02-29 | 1989-10-09 | Ericsson Telefon Ab L M | Cellindelat digitalt mobilradiosystem och foerfarande foer att oeverfoera information i ett digitalt cellindelat mobilradiosystem |
LU87840A1 (fr) * | 1990-05-04 | 1991-05-07 | Siemens Ag | Passives optisches telekommunikationssystem |
US5241545A (en) * | 1990-11-14 | 1993-08-31 | Motorola, Inc. | Apparatus and method for recovering a time-varying signal using multiple sampling points |
US5297169A (en) * | 1991-06-28 | 1994-03-22 | Telefonaktiebolaget L M Ericsson | Equalizer training in a radiotelephone system |
CA2076099A1 (en) * | 1991-09-03 | 1993-03-04 | Howard Leroy Lester | Automatic simulcast alignment |
AU647312B2 (en) * | 1991-09-24 | 1994-03-17 | Motorola, Inc. | Cellular radio system using common radio backbone |
DE69329209T2 (de) * | 1992-01-10 | 2001-04-05 | Nec Corp | Synchronfunkrufsystem |
CA2094771A1 (en) * | 1992-04-28 | 1993-10-29 | Paulus George Maria De Bot | Transmitter network with a single transmitter frequency |
US5414734A (en) * | 1993-01-06 | 1995-05-09 | Glenayre Electronics, Inc. | Compensation for multi-path interference using pilot symbols |
US5361398A (en) * | 1993-01-29 | 1994-11-01 | Motorola, Inc. | Method and apparatus for transmission path delay measurements using adaptive demodulation |
DE4304095B4 (de) * | 1993-02-11 | 2005-08-25 | Philips Intellectual Property & Standards Gmbh | Mobilfunksystem |
JP2872012B2 (ja) * | 1993-09-28 | 1999-03-17 | 日本電気株式会社 | チャンネル選択方式及びデータ受信装置 |
JP3868999B2 (ja) * | 1994-06-28 | 2007-01-17 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 時分割マルチアクセスディジタル伝送システム及び該システム用ステーション |
US5651010A (en) * | 1995-03-16 | 1997-07-22 | Bell Atlantic Network Services, Inc. | Simultaneous overlapping broadcasting of digital programs |
US5598413A (en) * | 1995-07-10 | 1997-01-28 | Adtran, Inc. | Four-wire, half-rate architecture with embedded differential delay compensation for extending range of basic rate ISDN communications |
US5570372A (en) * | 1995-11-08 | 1996-10-29 | Siemens Rolm Communications Inc. | Multimedia communications with system-dependent adaptive delays |
-
1996
- 1996-03-14 JP JP8057837A patent/JP2809179B2/ja not_active Expired - Fee Related
-
1997
- 1997-03-13 US US08/816,526 patent/US5905718A/en not_active Expired - Fee Related
- 1997-03-13 EP EP97104250A patent/EP0795970B1/de not_active Expired - Lifetime
- 1997-03-13 CA CA002199922A patent/CA2199922C/en not_active Expired - Fee Related
- 1997-03-13 DE DE69722489T patent/DE69722489T2/de not_active Expired - Fee Related
- 1997-03-14 AU AU16300/97A patent/AU711362B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
EP0795970A2 (de) | 1997-09-17 |
CA2199922A1 (en) | 1997-09-14 |
JPH09252278A (ja) | 1997-09-22 |
CA2199922C (en) | 2001-05-01 |
DE69722489T2 (de) | 2003-12-18 |
EP0795970A3 (de) | 2000-09-06 |
EP0795970B1 (de) | 2003-06-04 |
AU711362B2 (en) | 1999-10-14 |
JP2809179B2 (ja) | 1998-10-08 |
US5905718A (en) | 1999-05-18 |
AU1630097A (en) | 1997-09-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |