Global Patent Index - EP 0990309 A1

EP 0990309 A1 2000-04-05 - SIGNAL DETECTION METHOD IN A DIGITAL CELLULAR RECEIVER

Title (en)

SIGNAL DETECTION METHOD IN A DIGITAL CELLULAR RECEIVER

Title (de)

SIGNALDETEKTIONSVERFAHREN EINES DIGITALEN ZELLULARENEMPFÄGER

Title (fr)

PROCEDE DE DETECTION DE SIGNAUX POUR RECEPTEUR CELLULAIRE NUMERIQUE

Publication

EP 0990309 A1 (EN)

Application

EP 98925691 A

Priority

  • FI 9800528 W
  • FI 972688 A

Abstract (en)

[origin: WO9901945A1] The invention relates to a signal detection method in a digital cellular network receiver. A combination of a desired useful signal and at least one interfering adjacent channel signal originating from a channel adjacent to a desired channel is received on the desired channel. In accordance with the invention channel estimates of the useful signal and at least one adjacent channel signal are jointly determined. The estimation is performed either using reference parts, for example a training sequence, known by the receiver or using symbol or bit decisions produced by decision feedback. Then the useful signal is detected utilizing the channel estimates of both the useful signal and the adjacent channel signal. The estimation can also be performed separately, in parallel or sequentially, in which case a reconstructed interfering signal is reduced from the useful signal before detection.

IPC 1-7 (main, further and additional classification)

H04B 1/10; H04B 17/00

IPC 8 full level (invention and additional information)

H04J 13/04 (2006.01); H04B 1/10 (2006.01); H04B 1/12 (2006.01); H04B 7/26 (2006.01)

CPC (invention and additional information)

H04L 25/0246 (2013.01); H04B 1/123 (2013.01); H04L 25/0208 (2013.01); H04L 25/03305 (2013.01); H04L 25/03331 (2013.01); H04L 25/0228 (2013.01); H04L 2025/03426 (2013.01)

Citation (search report)

See references of WO 9901945A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9901945 A1 19990114; AU 741617 B2 20011206; AU 7771398 A 19990125; CN 1260914 A 20000719; EP 0990309 A1 20000405; FI 104019 B1 19991029; FI 104019 B 19991029; FI 972688 A0 19970619; FI 972688 A 19981220; JP 2002506594 A 20020226; NO 996262 A 19991217; NO 996262 D0 19991217

INPADOC legal status


2005-08-10 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20050125

2004-10-27 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20040913

2002-03-13 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: NOKIA CORPORATION

2000-04-05 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991203

2000-04-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE