Global patent index - EP 1038359 A2

EP 1038359 A2 2000-09-27 - ESTIMATION OF TRANSMISSION CHANNELS IN COMMUNICATION SYSTEMS FOR WIRELESS TELECOMMUNICATION

Title (en)

ESTIMATION OF TRANSMISSION CHANNELS IN COMMUNICATION SYSTEMS FOR WIRELESS TELECOMMUNICATION

Title (de)

ÜBERTRAGUNGSKANALSCHÄTZUNG IN TELEKOMMUNIKATIONSSYSTEMEN MIT DRAHTLOSER TELEKOMMUNIKATION

Title (fr)

EVALUATION DE CANAUX DE TRANSMISSION DANS DES SYSTEMES DE COMMUNICATION POUR LA TELECOMMUNICATION SANS FIL

Publication

EP 1038359 A2 (DE)

Application

EP 98955359 A

Priority

  • DE 9802894 W
  • DE 19747369 A

Abstract (en)

[origin: DE19747369A1] Various channel pulse response correlations are used in a variety of ways to improve and simplify estimation of wireless transmission channels in telecommunication systems e.g. one of two messages which are intended for another sender/receiver are used for channel estimation. In addition or alternately, the difference between two channel pulse responses is determined. If this difference falls below a given limit an average channel pulse response is formed and /or sequences of training information or test signals are not transmitted in alternate bursts. In addition or alternately, the correlation of two channel pulse responses by means of look up tables can be used to estimate subscriber speed.

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

H04B 1/00

IPC 8 full level (invention and additional information)

H04J 13/00 (2006.01); H04B 7/005 (2006.01); H04B 7/08 (2006.01); H04B 7/26 (2006.01); H04J 3/00 (2006.01); H04L 25/02 (2006.01); H04W 24/00 (2009.01)

CPC (invention and additional information)

H04W 24/00 (2013.01); H04B 7/0845 (2013.01); H04L 25/0202 (2013.01)

Citation (search report)

See references of WO 9922454A3

Designated contracting state (EPC)

DE ES FR GB IT

EPO simple patent family

DE 19747369 A1 19990506; AU 1223899 A 19990517; BR 9813306 A 20001128; CA 2308026 A1 19990506; CN 1153370 C 20040609; CN 1278376 A 20001227; EP 1038359 A2 20000927; JP 2001522157 A 20011113; RU 2235430 C2 20040827; US 6795427 B1 20040921; WO 9922454 A2 19990506; WO 9922454 A3 19991007

INPADOC legal status

2006-05-10 [18R] REFUSED

- Ref Legal Event Code: 18R

- Effective date: 20051219

2003-07-09 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20030523

2000-11-02 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- Free Format Text: 7H 04B 7/005 A, 7H 04B 7/26 B, 7H 04J 13/02 B, 7H 04L 25/02 B, 7H 04L 27/26 B

2000-09-27 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000417

2000-09-27 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE ES FR GB IT