WO1999004504A1 - Equipement de radiocommunication - Google Patents
Equipement de radiocommunication Download PDFInfo
- Publication number
- WO1999004504A1 WO1999004504A1 PCT/JP1998/003180 JP9803180W WO9904504A1 WO 1999004504 A1 WO1999004504 A1 WO 1999004504A1 JP 9803180 W JP9803180 W JP 9803180W WO 9904504 A1 WO9904504 A1 WO 9904504A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- frequency
- local oscillation
- oscillation signal
- band
- Prior art date
Links
Classifications
-
- 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
- H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/006—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/16—Multiple-frequency-changing
- H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
- H03D7/163—Multiple-frequency-changing all the frequency changers being connected in cascade the local oscillations of at least two of the frequency changers being derived from a single oscillator
-
- 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
- H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
-
- 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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
- H04B1/406—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with more than one transmission mode, e.g. analog and digital modes
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/254,392 US6393299B1 (en) | 1997-07-15 | 1998-07-15 | Radio communication equipment |
EP98932534A EP0926838A1 (en) | 1997-07-15 | 1998-07-15 | Radio communication equipment |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9/189726 | 1997-07-15 | ||
JP9189726A JPH1141131A (ja) | 1997-07-15 | 1997-07-15 | 無線通信装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999004504A1 true WO1999004504A1 (fr) | 1999-01-28 |
Family
ID=16246171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1998/003180 WO1999004504A1 (fr) | 1997-07-15 | 1998-07-15 | Equipement de radiocommunication |
Country Status (4)
Country | Link |
---|---|
US (1) | US6393299B1 (ja) |
EP (1) | EP0926838A1 (ja) |
JP (1) | JPH1141131A (ja) |
WO (1) | WO1999004504A1 (ja) |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69940547D1 (de) * | 1999-09-04 | 2009-04-23 | Cinterion Wireless Modules Hol | Mobilstation und Verfahren zur Einstellung der Ausgangsleistung während der Frequenzwiederdefinierung zwischen den Bändern |
NO329890B1 (no) * | 1999-11-15 | 2011-01-17 | Hitachi Ltd | Mobilkommunikasjonsapparat |
FR2802757A1 (fr) * | 1999-12-16 | 2001-06-22 | Sagem | Recepteur a rejection d'image dans un telephone mobile et son procede associe |
JP2002009638A (ja) * | 2000-06-19 | 2002-01-11 | Nec Corp | 通信装置の電力増幅回路 |
JP2002076953A (ja) | 2000-08-28 | 2002-03-15 | Nec Corp | 送信回路及び不要輻射波抑圧方法 |
US6728525B1 (en) * | 2000-09-01 | 2004-04-27 | Motorola, Inc. | Multimode transceiver with multiple if's and common injection |
ATE386370T1 (de) * | 2000-10-19 | 2008-03-15 | Texas Instruments Inc | Verfahren und vorrichtung zur erzeugung eines lokaloszillatorsignals |
JP2002135157A (ja) * | 2000-10-20 | 2002-05-10 | Sony Corp | マルチバンド携帯無線端末 |
US20020127992A1 (en) * | 2001-03-08 | 2002-09-12 | Fransis Bert L. | Wideband local oscillator architecture |
US20020127985A1 (en) * | 2001-03-08 | 2002-09-12 | Fransis Bert L. | Wideband local oscillator architecture |
JP3949389B2 (ja) * | 2001-03-30 | 2007-07-25 | アルプス電気株式会社 | デュアル型デジタルテレビジョンチューナ |
KR100438556B1 (ko) * | 2001-12-10 | 2004-07-02 | 엘지전자 주식회사 | 트라이 모드 이동 단말기에서의 고주파 신호 처리 장치 및방법 |
GB2387995B (en) * | 2002-04-23 | 2006-01-25 | Hutchison Whampoa Three G Ip | Improved portable telecommunication terminal |
CA2486758A1 (en) * | 2002-06-21 | 2003-12-31 | Widefi, Inc. | Wireless local area network repeater |
US8885688B2 (en) | 2002-10-01 | 2014-11-11 | Qualcomm Incorporated | Control message management in physical layer repeater |
WO2004034600A1 (en) * | 2002-10-11 | 2004-04-22 | Widefi, Inc. | Reducing loop effects in a wireless local area network repeater |
US8060009B2 (en) * | 2002-10-15 | 2011-11-15 | Qualcomm Incorporated | Wireless local area network repeater with automatic gain control for extending network coverage |
US8078100B2 (en) | 2002-10-15 | 2011-12-13 | Qualcomm Incorporated | Physical layer repeater with discrete time filter for all-digital detection and delay generation |
US7230935B2 (en) | 2002-10-24 | 2007-06-12 | Widefi, Inc. | Physical layer repeater with selective use of higher layer functions based on network operating conditions |
JP2006506897A (ja) | 2002-11-15 | 2006-02-23 | ワイデファイ インコーポレイテッド | 無線ローカルエリアネットワーク検出中継器 |
KR100472484B1 (ko) * | 2002-12-10 | 2005-03-10 | 삼성전자주식회사 | 무선 신호 병렬 처리 장치 및 그 방법 |
GB2411797B (en) | 2002-12-16 | 2006-03-01 | Widefi Inc | Improved wireless network repeater |
US7447491B2 (en) * | 2003-06-06 | 2008-11-04 | Silicon Laboratories Inc. | Multi-tuner integrated circuit architecture utilizing frequency isolated local oscillators and associated method |
US8027642B2 (en) * | 2004-04-06 | 2011-09-27 | Qualcomm Incorporated | Transmission canceller for wireless local area network |
WO2005115022A2 (en) * | 2004-05-13 | 2005-12-01 | Widefi, Inc. | Non-frequency translating repeater with detection and media access control |
CN1985528B (zh) | 2004-06-03 | 2010-06-09 | 高通股份有限公司 | 具有低成本高性能本振架构的变频中继器 |
US8059727B2 (en) | 2005-01-28 | 2011-11-15 | Qualcomm Incorporated | Physical layer repeater configuration for increasing MIMO performance |
US7787843B2 (en) * | 2005-03-29 | 2010-08-31 | Broadcom Corporation | Multiple band direct conversion radio frequency transceiver integrated circuit |
KR100755696B1 (ko) * | 2005-11-09 | 2007-09-05 | 삼성전자주식회사 | 지상파 디지털 방송과 위성 디지털 방송을 공용하는 무선수신 장치 |
WO2007123733A2 (en) * | 2006-03-31 | 2007-11-01 | Qualcomm Incorporated | Enhanced physical layer repeater for operation in wimax systems |
CA2663419C (en) | 2006-09-21 | 2016-07-19 | Qualcomm Incorporated | Method and apparatus for mitigating oscillation between repeaters |
US8340712B2 (en) * | 2006-09-29 | 2012-12-25 | Broadcom Corporation | Method and system for utilizing diplexer/duplexer for WCDMA operation as a filter for supporting GSM-based operation |
US8031651B2 (en) | 2006-09-29 | 2011-10-04 | Broadcom Corporation | Method and system for minimizing power consumption in a communication system |
US8233935B2 (en) * | 2006-09-29 | 2012-07-31 | Broadcom Corporation | Method and system for sharing RF filters in systems supporting WCDMA and GSM |
WO2008057290A1 (en) | 2006-10-26 | 2008-05-15 | Qualcomm Incorporated | Repeater techniques for multiple input multiple output utilizing beam formers |
JP2009017003A (ja) * | 2007-07-02 | 2009-01-22 | Sony Corp | 無線送信装置、無線受信装置、トランシーバ及び無線通信方法 |
US20100323636A1 (en) * | 2009-06-23 | 2010-12-23 | Nicholas Cowley | Apparatus and methods for implementing multi-channel tuners |
EP2448368B1 (en) * | 2010-10-11 | 2014-05-14 | Wireless Audio IP B.V. | An integrated circuit system |
US8774742B2 (en) * | 2012-01-18 | 2014-07-08 | Qualcomm Incorporated | High efficiency transmitter |
US9088468B2 (en) | 2012-01-20 | 2015-07-21 | Telefonaktiebolaget L M Ericsson (Publ) | Double conversion dual-carrier radio frequency receiver |
RU2484584C1 (ru) * | 2012-05-10 | 2013-06-10 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Балтийский Федеральный Университет имени Иммануила Канта" (БФУ им. И. Канта) | Радиостанция |
US9401801B1 (en) * | 2015-09-23 | 2016-07-26 | Qualcomm Incorporated | Multi-chip TX beamforming for per-packet switching with reduced LO leakage |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0575495A (ja) * | 1991-09-11 | 1993-03-26 | Hitachi Ltd | 移動通信機 |
JPH0565137U (ja) * | 1992-02-13 | 1993-08-27 | 京セラ株式会社 | 高周波移動無線送受信装置 |
JPH09130291A (ja) * | 1995-10-31 | 1997-05-16 | Hitachi Ltd | デュアルモード携帯電話端末のクロック分配方式 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07102852B2 (ja) | 1991-09-03 | 1995-11-08 | 株式会社長崎機器製作所 | 袋開放装置 |
FR2742946B1 (fr) * | 1995-12-22 | 1998-01-16 | Alcatel Mobile Comm France | Terminal de radiocommunication multimode |
JPH09275358A (ja) * | 1996-04-08 | 1997-10-21 | Matsushita Electric Ind Co Ltd | 複数帯域移動無線装置 |
US5732330A (en) * | 1996-07-02 | 1998-03-24 | Ericsson Inc. | Dual band transceiver |
US5898562A (en) * | 1997-05-09 | 1999-04-27 | Avx Corporation | Integrated dual frequency noise attenuator |
-
1997
- 1997-07-15 JP JP9189726A patent/JPH1141131A/ja active Pending
-
1998
- 1998-07-15 EP EP98932534A patent/EP0926838A1/en not_active Withdrawn
- 1998-07-15 US US09/254,392 patent/US6393299B1/en not_active Expired - Fee Related
- 1998-07-15 WO PCT/JP1998/003180 patent/WO1999004504A1/ja not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0575495A (ja) * | 1991-09-11 | 1993-03-26 | Hitachi Ltd | 移動通信機 |
JPH0565137U (ja) * | 1992-02-13 | 1993-08-27 | 京セラ株式会社 | 高周波移動無線送受信装置 |
JPH09130291A (ja) * | 1995-10-31 | 1997-05-16 | Hitachi Ltd | デュアルモード携帯電話端末のクロック分配方式 |
Also Published As
Publication number | Publication date |
---|---|
JPH1141131A (ja) | 1999-02-12 |
US6393299B1 (en) | 2002-05-21 |
EP0926838A1 (en) | 1999-06-30 |
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