WO2000016490A8 - Method and arrangement in a radio receiver - Google Patents

Method and arrangement in a radio receiver

Info

Publication number
WO2000016490A8
WO2000016490A8 PCT/SE1999/001535 SE9901535W WO0016490A8 WO 2000016490 A8 WO2000016490 A8 WO 2000016490A8 SE 9901535 W SE9901535 W SE 9901535W WO 0016490 A8 WO0016490 A8 WO 0016490A8
Authority
WO
WIPO (PCT)
Prior art keywords
measurement interval
analog
output signal
radio receiver
radio
Prior art date
Application number
PCT/SE1999/001535
Other languages
French (fr)
Other versions
WO2000016490A1 (en
Inventor
Dan Korsfeldt
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 AU63766/99A priority Critical patent/AU6376699A/en
Publication of WO2000016490A1 publication Critical patent/WO2000016490A1/en
Publication of WO2000016490A8 publication Critical patent/WO2000016490A8/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

The invention relates to a method and an arrangement for estimating a DC-offset in at least one analog output signal from an analog front end of a radio receiver in a TDMA-based radio communication system. A sequence of measurement intervals is defined (501) such that for each burst transmitted on a radio carrier frequency by mobile stations operating in a common cell, there is at least one measurement interval during which no overlap with a second burst occurs. The analog front end of the radio receiver generates (502) the analog output signal by performing analog signal processing of received radio signals. Digital samples are derived (503) from the analog output signal. A measure of received signal power in each measurement interval in a framing period is estimated (504). At least one measurement interval during the framing period is selected (505) in dependence of said measure. The DC-offset is estimated (506) using samples belonging to said selected measurement interval.
PCT/SE1999/001535 1998-09-15 1999-09-03 Method and arrangement in a radio receiver WO2000016490A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU63766/99A AU6376699A (en) 1998-09-15 1999-09-03 Method and arrangement in a radio receiver

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9803133A SE512965C2 (en) 1998-09-15 1998-09-15 Method and device for reducing DC level errors in a TDMA system
SE9803133-9 1998-09-15

Publications (2)

Publication Number Publication Date
WO2000016490A1 WO2000016490A1 (en) 2000-03-23
WO2000016490A8 true WO2000016490A8 (en) 2000-05-11

Family

ID=20412606

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1999/001535 WO2000016490A1 (en) 1998-09-15 1999-09-03 Method and arrangement in a radio receiver

Country Status (4)

Country Link
AU (1) AU6376699A (en)
CO (1) CO5130056A1 (en)
SE (1) SE512965C2 (en)
WO (1) WO2000016490A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2821218B1 (en) * 2001-02-22 2006-06-23 Cit Alcatel RECEPTION DEVICE FOR A MOBILE RADIOCOMMUNICATION TERMINAL

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69228816T2 (en) * 1992-10-28 1999-08-19 Cit Alcatel DC offset correction for direct mix TDMA receivers
US5724653A (en) * 1994-12-20 1998-03-03 Lucent Technologies Inc. Radio receiver with DC offset correction circuit
US5838735A (en) * 1996-07-08 1998-11-17 Telefonaktiebolaget Lm Ericsson Method and apparatus for compensating for a varying d.c. offset in a sampled signal

Also Published As

Publication number Publication date
CO5130056A1 (en) 2002-02-27
SE512965C2 (en) 2000-06-12
AU6376699A (en) 2000-04-03
SE9803133L (en) 2000-03-16
SE9803133D0 (en) 1998-09-15
WO2000016490A1 (en) 2000-03-23

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