Global Patent Index - EP 1088414 A1

EP 1088414 A1 2001-04-04 - METHOD FOR REDUCING INTERFERENCE BETWEEN USERS AND USE THEREOF IN A RADIO ACCESS NETWORK

Title (en)

METHOD FOR REDUCING INTERFERENCE BETWEEN USERS AND USE THEREOF IN A RADIO ACCESS NETWORK

Title (de)

VERFAHREN ZUR REDUZIERUNG DER EIGENSTÖRUNG ZWISCHEN BENUTZERN UND ANWENDUNG IN EINEM FUNKZUGRIFFSNETZ

Title (fr)

PROCEDE DE REDUCTION D'INTERFERENCE ENTRE UTILISATEURS ET UTILISATION DANS UN RESEAU D'ACCES RADIO

Publication

EP 1088414 A1 (FR)

Application

EP 00918969 A

Priority

  • FR 0000958 W
  • FR 9904754 A

Abstract (en)

[origin: WO0064084A1] Omnidirectional or sectorial emissions are provided in a network of radioelectric links radiated by base stations. User terminals are provided with directional antennae which can be pointed at said base stations. A CDMA mode is an encoding mode for the symbols that are to be emitted before modulation by a carrier. Some user terminals are located in unfavorable zones of said network where they receive parasitic emissions from other base stations that are aligned in the direction in which they are pointed. In order to avoid negative effects of said parasitic emissions, the signals directed at said user terminals are encoded with double-length coding sequences. A transmission quality factor amounting to as much as 3dB can be gained by means of said redundancy. The quality is further increased if the length is also increased.

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

H04J 13/00

IPC 8 full level (invention and additional information)

H04J 13/00 (2011.01); H04J 13/18 (2011.01)

CPC (invention and additional information)

H04J 13/18 (2013.01); H04J 13/0048 (2013.01)

Citation (search report)

See references of WO 0064084A1

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 0064084 A1 20001026; AU 3973600 A 20001102; EP 1088414 A1 20010404; IL 140262 D0 20020210

INPADOC legal status


2006-05-10 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20051101

2001-06-27 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010426

2001-04-04 [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

2001-04-04 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI