WO1999022456A3 - Arrangement and method relating to radio communication - Google Patents

Arrangement and method relating to radio communication Download PDF

Info

Publication number
WO1999022456A3
WO1999022456A3 PCT/SE1998/001935 SE9801935W WO9922456A3 WO 1999022456 A3 WO1999022456 A3 WO 1999022456A3 SE 9801935 W SE9801935 W SE 9801935W WO 9922456 A3 WO9922456 A3 WO 9922456A3
Authority
WO
WIPO (PCT)
Prior art keywords
arrangement
clock
overtones
radio communication
oscillators
Prior art date
Application number
PCT/SE1998/001935
Other languages
French (fr)
Other versions
WO1999022456A2 (en
Inventor
Haakan Grenabo
Original Assignee
Ericsson Telefon Ab L M
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
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to AU97714/98A priority Critical patent/AU9771498A/en
Priority to EP98951878A priority patent/EP1032979A2/en
Priority to JP2000518451A priority patent/JP2001522158A/en
Publication of WO1999022456A2 publication Critical patent/WO1999022456A2/en
Publication of WO1999022456A3 publication Critical patent/WO1999022456A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
    • H04B15/04—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2215/00—Reducing interference at the transmission system level
    • H04B2215/064—Reduction of clock or synthesizer reference frequency harmonics

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Noise Elimination (AREA)

Abstract

The present invention relates to an arrangement (100) and a method respectively for suppressing clock overtones generated in a receiving arrangement of a radio communication system which receives signals within at least one frequency band and wherein the receiving arrangement comprises a number of oscillators including local oscillators and digital clocking means. The arrangement (100) comprises a phase locking arrangement (20) which includes a number of phase locking means (22; 23) for locking the oscillators in relation to each other so that all clock overtone frequencies become co-located and well defined within the frequency band(s). The arrangement further comprises a filtering arrangement (40) for filtering out said clock overtones, thus producing an output signal (I OUT/40) which is substantially free from clock overtones.
PCT/SE1998/001935 1997-10-29 1998-10-27 Arrangement and method relating to radio communication WO1999022456A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU97714/98A AU9771498A (en) 1997-10-29 1998-10-27 Arrangement and method relating to radio communication
EP98951878A EP1032979A2 (en) 1997-10-29 1998-10-27 Arrangement and method relating to radio communication
JP2000518451A JP2001522158A (en) 1997-10-29 1998-10-27 Apparatus and method for wireless communication

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9703944A SE9703944L (en) 1997-10-29 1997-10-29 Radio communication device and method
SE9703944-0 1997-10-29

Publications (2)

Publication Number Publication Date
WO1999022456A2 WO1999022456A2 (en) 1999-05-06
WO1999022456A3 true WO1999022456A3 (en) 1999-07-15

Family

ID=20408782

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1998/001935 WO1999022456A2 (en) 1997-10-29 1998-10-27 Arrangement and method relating to radio communication

Country Status (6)

Country Link
EP (1) EP1032979A2 (en)
JP (1) JP2001522158A (en)
CN (1) CN1283335A (en)
AU (1) AU9771498A (en)
SE (1) SE9703944L (en)
WO (1) WO1999022456A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7024221B2 (en) 2001-01-12 2006-04-04 Silicon Laboratories Inc. Notch filter for DC offset reduction in radio-frequency apparatus and associated methods
US6970717B2 (en) * 2001-01-12 2005-11-29 Silicon Laboratories Inc. Digital architecture for radio-frequency apparatus and associated methods
US6804497B2 (en) 2001-01-12 2004-10-12 Silicon Laboratories, Inc. Partitioned radio-frequency apparatus and associated methods
WO2002056488A2 (en) * 2001-01-12 2002-07-18 Silicon Lab Inc Digital interface in radio-frequency apparatus and associated methods
US7035611B2 (en) 2001-01-12 2006-04-25 Silicon Laboratories Inc. Apparatus and method for front-end circuitry in radio-frequency apparatus
US7031683B2 (en) 2001-01-12 2006-04-18 Silicon Laboratories Inc. Apparatus and methods for calibrating signal-processing circuitry
US7138858B2 (en) 2001-01-12 2006-11-21 Silicon Laboratories, Inc. Apparatus and methods for output buffer circuitry with constant output power in radio-frequency circuitry
US7158574B2 (en) 2001-01-12 2007-01-02 Silicon Laboratories Inc. Digital interface in radio-frequency apparatus and associated methods
US7177610B2 (en) 2001-01-12 2007-02-13 Silicon Laboratories Inc. Calibrated low-noise current and voltage references and associated methods
KR101031735B1 (en) 2002-03-15 2011-04-29 실리콘 래버래토리즈 인코포레이티드 Radio-frequency apparatus and associated methods
EP1675286A1 (en) * 2004-12-22 2006-06-28 Siemens Aktiengesellschaft Interference rejection in a receiver
US8489040B2 (en) 2010-02-18 2013-07-16 Telefonaktiebolaget L M Ericsson (Publ) Double clipped RF clock generation with spurious tone cancellation
EP2600544B1 (en) * 2011-11-30 2014-10-15 Telefonaktiebolaget L M Ericsson (publ) Technique for crosstalk reduction
CN105306080B (en) * 2015-11-30 2017-08-25 上海航天测控通信研究所 A kind of spaceborne phase-locked receive of X frequency ranges

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995031860A1 (en) * 1993-09-13 1995-11-23 Analog Devices, Inc. Digital-to-digital conversion using nonuniform sample rates

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995031860A1 (en) * 1993-09-13 1995-11-23 Analog Devices, Inc. Digital-to-digital conversion using nonuniform sample rates

Also Published As

Publication number Publication date
SE9703944L (en) 1999-04-30
JP2001522158A (en) 2001-11-13
SE9703944D0 (en) 1997-10-29
WO1999022456A2 (en) 1999-05-06
EP1032979A2 (en) 2000-09-06
CN1283335A (en) 2001-02-07
AU9771498A (en) 1999-05-17

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