JP4338526B2 - ３ｇ無線受信機 - Google Patents

３ｇ無線受信機 Download PDF

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Publication number
JP4338526B2
JP4338526B2 JP2003572192A JP2003572192A JP4338526B2 JP 4338526 B2 JP4338526 B2 JP 4338526B2 JP 2003572192 A JP2003572192 A JP 2003572192A JP 2003572192 A JP2003572192 A JP 2003572192A JP 4338526 B2 JP4338526 B2 JP 4338526B2
Authority
JP
Japan
Prior art keywords
filter
receiver
signal
frequency
offset
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
Application number
JP2003572192A
Other languages
English (en)
Japanese (ja)
Other versions
JP2005518750A (ja
JP2005518750A5 (enExample
Inventor
アトキンソン，サイモン
ビルク，パッレ
ホー，ステイシー
ズヴォナール，ゾラン
カハレン，エイダン
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MediaTek Inc
Original Assignee
MediaTek Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from GBGB0204108.5A external-priority patent/GB0204108D0/en
Application filed by MediaTek Inc filed Critical MediaTek Inc
Publication of JP2005518750A publication Critical patent/JP2005518750A/ja
Publication of JP2005518750A5 publication Critical patent/JP2005518750A5/ja
Application granted granted Critical
Publication of JP4338526B2 publication Critical patent/JP4338526B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H04B1/38—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
    • 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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • 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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/12—Neutralising, balancing, or compensation arrangements
    • 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/30—Circuits for homodyne or synchrodyne receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Superheterodyne Receivers (AREA)
JP2003572192A 2002-02-21 2003-02-21 ３ｇ無線受信機 Expired - Lifetime JP4338526B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB0204108.5A GB0204108D0 (en) 2002-02-21 2002-02-21 3G radio
US10/331,622 US7292649B2 (en) 2002-02-21 2002-12-30 3G radio
PCT/US2003/005473 WO2003073631A1 (en) 2002-02-21 2003-02-21 3g radio

Publications (3)

Publication Number Publication Date
JP2005518750A JP2005518750A (ja) 2005-06-23
JP2005518750A5 JP2005518750A5 (enExample) 2006-03-23
JP4338526B2 true JP4338526B2 (ja) 2009-10-07

Family

ID=27767096

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003572192A Expired - Lifetime JP4338526B2 (ja) 2002-02-21 2003-02-21 ３ｇ無線受信機

Country Status (4)

Country Link
EP (1) EP1476950B1 (enExample)
JP (1) JP4338526B2 (enExample)
CN (1) CN1639990B (enExample)
WO (1) WO2003073631A1 (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0204108D0 (en) 2002-02-21 2002-04-10 Analog Devices Inc 3G radio
US7231193B2 (en) * 2004-04-13 2007-06-12 Skyworks Solutions, Inc. Direct current offset correction systems and methods
US7379752B2 (en) * 2004-10-13 2008-05-27 Mediatek Inc. Methods and apparatus for communication in a wireless system
JP5274014B2 (ja) 2004-10-13 2013-08-28 メディアテック インコーポレーテッド 通信システム用フィルタ
JP5202035B2 (ja) * 2008-02-28 2013-06-05 ルネサスエレクトロニクス株式会社 半導体集積回路とその動作方法
EP2259520A1 (en) * 2009-06-02 2010-12-08 ST-Ericsson SA Process for computing a frequency offset for a UMTS communication system based on the CPICH pilot signals
JP5500203B2 (ja) * 2012-05-18 2014-05-21 住友電気工業株式会社 軟判定復号装置および軟判定復号プログラム
US9543997B2 (en) * 2014-01-21 2017-01-10 Infineon Technologies Ag System and method for a mixer

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI950106A7 (fi) * 1995-01-10 1996-07-11 Nokia Corp Menetelmä ja kytkentä häiriöiden suodattamiseksi radiolaitteen vastaanottimessa
FI100286B (fi) * 1996-04-01 1997-10-31 Nokia Mobile Phones Ltd Lähetin/vastaanotin RF-signaalin lähettämiseksi ja vastaanottamiseksi kahdella taajuusalueella
FI102432B (fi) * 1996-09-11 1998-11-30 Filtronic Lk Oy Kaksitoimisen radioviestimen antennisuodatusjärjestely
US5719326A (en) * 1996-10-25 1998-02-17 Harris Corporation Reconfigurable filter system
US5974305A (en) * 1997-05-15 1999-10-26 Nokia Mobile Phones Limited Dual band architectures for mobile stations
US6043727A (en) * 1998-05-15 2000-03-28 Hughes Electronics Corporation Reconfigurable millimeterwave filter using stubs and stub extensions selectively coupled using voltage actuated micro-electro-mechanical switches
US6130590A (en) * 1998-08-14 2000-10-10 Lucent Technologies Inc. Programmable filter bank having notch filter and bandpass filter frequency responses
FI112741B (fi) * 1998-11-26 2003-12-31 Nokia Corp Menetelmä ja järjestely RF-signaalien lähettämiseksi ja vastaanottamiseksi tiedonsiirtojärjestelmien erilaisissa radiorajapinnoissa
EP1178637A1 (en) * 2000-08-04 2002-02-06 Motorola, Inc. Apparatus for reducing DC offset in a direct conversion receiver

Also Published As

Publication number Publication date
WO2003073631A1 (en) 2003-09-04
EP1476950A4 (en) 2005-07-20
EP1476950A1 (en) 2004-11-17
JP2005518750A (ja) 2005-06-23
EP1476950B1 (en) 2008-08-13
CN1639990A (zh) 2005-07-13
CN1639990B (zh) 2010-09-15

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