Global Patent Index - EP 1076970 A2

EP 1076970 A2 2001-02-21 - METHOD AND DEVICE FOR CHANNEL ESTIMATION

Title (en)

METHOD AND DEVICE FOR CHANNEL ESTIMATION

Title (de)

VERFAHREN UND EINRICHTUNG ZUR KANALSCHÄTZUNG

Title (fr)

PROCEDE ET DISPOSITIF D'ESTIMATION DE CANAUX

Publication

EP 1076970 A2 (DE)

Application

EP 99932631 A

Priority

  • DE 9901355 W
  • DE 19820761 A

Abstract (en)

[origin: DE19820761C1] According to the invention, signals consisting of a data part with data symbols and a midamble with a given amount of known symbols are transmitted via a transmission channel in a method for channel estimation in a communication system. Channel coefficients are estimated in terms of channel impulse response of the transmission channel on the receiver side, whereby the received signal dependent on the midamble is convoluted with the estimation coefficients derived from the known symbols of the midamble by Fourier transformation to estimate channel coefficients. Fourier transformation is carried out with any given number (S) of support points as long as S>/=2L, whereby L stands for the length of the evaluable part of the midamble. The invention can be advantageously used in third generation mobile radio networks.

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

H04L 25/02; H04B 7/005

IPC 8 full level (invention and additional information)

H04J 13/00 (2006.01); H04B 7/005 (2006.01); H04B 7/26 (2006.01)

CPC (invention and additional information)

H04B 7/005 (2013.01); H04B 7/2628 (2013.01)

Citation (search report)

See references of WO 9959351A3

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

DE 19820761 C1 19990624; AU 4896199 A 19991129; CN 1308807 A 20010815; EP 1076970 A2 20010221; JP 2002515707 A 20020528; WO 9959351 A2 19991118; WO 9959351 A3 19991229

INPADOC legal status


2003-07-16 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20021212

2002-09-18 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020801

2001-02-21 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001027

2001-02-21 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): DE FR GB