Global patent index - EP 0992169 A1

EP 0992169 A1 2000-04-12 - SECTORIZATION OF CELLULAR CDMA-SYSTEM

Title (en)

SECTORIZATION OF CELLULAR CDMA-SYSTEM

Title (de)

SEKTORISIERUNG EINES ZELLULAREN CDMA-SYSTEMS

Title (fr)

SECTORISATION D'UN SYSTEME AMRC CELLULAIRE

Publication

EP 0992169 A1 (EN)

Application

EP 98928709 A

Priority

  • SE 9800993 W
  • SE 9702408 A

Abstract (en)

[origin: WO9859512A1] The present invention relates to sectorization of a cellular CDMA-system. Each sectorized cell (CELL) in the CDMA-system comprises a number of antenna sectors (AS1-AS8) having overlapping regions. Each cell is allocated a number of at least two different pilot channels (P1, P2). Two antenna sectors having a common overlapping region are not allowed to use the same pilot channel. At least one of said pilot channels (P1, P2) are reused within the cell, by at least two antenna sectors with no common overlapping region. The antenna sectors that use the same pilot signal are constituting a logical sector (LS1, LS2). A mobile station can communicate with the base station in a cell by using one or more antenna sectors within one or more logical sectors. If a mobile station communicates with the base station within a number of antenna sectors within the same logical sector, no softer handoff is required between the antenna sectors.

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

H04Q 7/36

IPC 8 full level (invention and additional information)

H04B 7/08 (2006.01); H04B 7/10 (2006.01); H04B 7/26 (2006.01); H04W 16/00 (2009.01); H04W 16/24 (2009.01)

CPC (invention and additional information)

H04W 16/00 (2013.01); H04W 16/24 (2013.01)

Citation (search report)

See references of WO 9859512A1

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

WO 9859512 A1 19981230; AU 742161 B2 20011220; AU 8044098 A 19990104; CA 2294224 A1 19981230; CN 1268277 A 20000927; EP 0992169 A1 20000412; JP 2002508905 A 20020319; KR 20010014223 A 20010226; SE 9702408 D0 19970624; SE 9702408 L 19981225

INPADOC legal status

2003-06-04 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20021203

2000-04-12 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19991202

2000-04-12 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB