Global Patent Index - EP 1034673 A1

EP 1034673 A1 2000-09-13 - BASE STATION SYNCHRONIZATION METHOD AND CELLULAR SYSTEM

Title (en)

BASE STATION SYNCHRONIZATION METHOD AND CELLULAR SYSTEM

Title (de)

VERFAHREN ZUR SYNCHRONISATION VON BASISSTATIONEN UND ZELLULARES SYSTEM

Title (fr)

PROCEDE DE SYNCHRONISATION ENTRE STATIONS DE BASE, ET SYSTEME CELLULAIRE

Publication

EP 1034673 A1 (EN)

Application

EP 98955625 A

Priority

  • FI 9800919 W
  • FI 974310 A

Abstract (en)

[origin: WO9930519A1] The invention relates to a method for synchronizing base stations, and a cellular radio system comprising in each cell at least a base station (204, 206) and a number of terminals (214, 216). The base stations transmit a reference signal, and the terminals can simultaneously communicate with one or more base stations and simultaneously receive the reference signal from more than one base station. In order to easily synchronize the base station, the terminal measures the timing difference between a reference signal transmitted by a base station not communicating with the terminal and one or more reference signals transmitted from base stations communicating with the terminal. The terminal reports the measured difference to the one or more base stations communicating with the terminal. On the basis of the measured timing difference, the one or more base stations are arranged to adjust the timing of the signals they have transmitted to the terminal in relation to each other.

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

H04Q 7/30; H04B 7/26

IPC 8 full level (invention and additional information)

H04B 7/26 (2006.01); H04W 56/00 (2009.01)

CPC (invention and additional information)

H04B 7/2684 (2013.01); H04W 56/0065 (2013.01)

Citation (search report)

See references of WO 9930519A1

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 9930519 A1 19990617; AU 1239599 A 19990628; CN 1279867 A 20010110; EP 1034673 A1 20000913; FI 974310 A0 19971124; FI 974310 A 19990525; JP 2001526509 A 20011218; NO 20002640 A 20000523; NO 20002640 D0 20000523

INPADOC legal status


2003-12-10 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030531

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

- Owner name: NOKIA CORPORATION

2000-09-13 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000508

2000-09-13 [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