Global Patent Index - EP 0983640 A1

EP 0983640 A1 2000-03-08 - SPACE-WEIGHTED COMMUNICATION PATH ESTIMATION

Title (en)

SPACE-WEIGHTED COMMUNICATION PATH ESTIMATION

Title (de)

RAUMGEWICHTIGE ÜBERTRAGUNGSWEGSSCHÄTZUNG

Title (fr)

SONDAGE A PONDERATION SPATIALE D'UNE VOIE DE TRANSMISSION

Publication

EP 0983640 A1 (FR)

Application

EP 98920612 A

Priority

  • FR 9800735 W
  • FR 9704653 A

Abstract (en)

[origin: FR2762167A1] The invention concerns a method for estimating a communication path formed by several channels. Said method requiring an estimation of the impulse response function (C1, C2, ..., Cn) of said channels comprises the following steps: acquiring a spatial statistic of said communication path; establishing a corrected impulse response function (C'1, C'2, ..., C'n) at least by weighting the pulse response functions (C1, C2, ..., Cn) using the spatial statistic and an additive noise estimation (N01, N02, ..., N0n) of these channels.

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

H04B 7/005; H04L 25/03

IPC 8 full level (invention and additional information)

H04B 1/76 (2006.01); H04B 7/08 (2006.01); H04L 25/03 (2006.01)

CPC (invention and additional information)

H04L 25/03 (2013.01); H04B 1/76 (2013.01); H04B 7/0854 (2013.01); H04B 7/0851 (2013.01)

Citation (search report)

See references of WO 9847240A1

Designated contracting state (EPC)

DE FI GB SE

EPO simple patent family

FR 2762167 A1 19981016; FR 2762167 B1 19990924; BR 9808550 A 20001024; CA 2286555 A1 19981022; CN 1256815 A 20000614; EP 0983640 A1 20000308; US 6904107 B1 20050607; WO 9847240 A1 19981022

INPADOC legal status


2003-01-02 [18R] REFUSED

- Effective date: 20020805

2001-11-14 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010927

2001-07-18 [D18D] EP-APPLICATION DEEMED TO BE WITHDRAWN: (DELETED)

2001-06-20 [18RA] DATE OF RECEIPT OF REQUEST FOR RE-ESTABLISHMENT OF RIGHTS

- Effective date: 20010430

2001-05-02 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20001101

2000-03-08 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991025

2000-03-08 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FI GB SE