EP 1348259 A2 20031001 - HANDOFF METHODS FOR WIRELESS PRIVATE BRANCH EXCHANGE ENABLED FOR STANDARD CELLULAR HANDSETS AND WIRELESS DATA DEVICES
Title (en)
HANDOFF METHODS FOR WIRELESS PRIVATE BRANCH EXCHANGE ENABLED FOR STANDARD CELLULAR HANDSETS AND WIRELESS DATA DEVICES
Title (de)
WEITERREICHUNGSVERFAHREN FÜR DRAHTLOSE NEBENSTELLENANLAGE, AKTIVIERT FÜR STANDARD-ZELLULARHANDAPPARATE UND DRAHTLOSE DATENGERÄTE
Title (fr)
PROCEDES DE TRANSFERT RELATIFS AUX AUTOCOMMUTATEURS PRIVES (PBX) SANS FIL ACTIVES POUR DES COMBINES CELLULAIRES CLASSIQUES ET DES DISPOSITIFS DE TRANSMISSION DE DONNEES SANS FIL
Publication
Application
Priority
- US 0148463 W 20011218
- US 25695900 P 20001221
Abstract (en)
[origin: WO02058248A2] A method to allow standard cellular handsets and personal data devices that support short-range communication to seamlessly connect to a wireless private branch exchange (WPBX) when it is in its coverage range. Thus the handset will become the handset of the WPBX, and there is no need to use special and expensive handsets with the WPBX. The WPBX includes a plurality of Base Stations, a plurality of gateways - all connected by communication links - and the required communication between them is also described. The operating procedures that the Base Stations and the Switch perform are described. The WPBX allows handoff between cells, when a standard cordless handset is used. The handset does not support connection to more then one Base Station and does not support mobility. The handset uses complicated digital communication methods, so simple handoff methods that only the Switch supports are not suffficient. The handoff operation requires cooperation of switch and Base Station and accurate synchronization of Base Stations.
[origin: WO02058248A2] A method to allow standard cellular handsets (121, 133) and personal data devices that support short-range communication to seamlessly connect to a wireless private branch exchange (WPBX) when it is in its coverage range. Thus the handset will become the handset of the WPBX, and there is no need to use special and expensive handsets with the WPBX. The WPBX includes a plurality of base stations (123, 124, 125), a plurality of switches (129), a plurality of gateways, all connected by communication links, and the required communication between them is also described. The operating procedures that the base stations and the switch perform are described. The WPBX allows handoff between cells, when a standard cordless handset is used. The handset does not support connection to more then one base station and does not support mobility. The handset uses complicated digital communication methods, so simple handoff methods that only the switch supports are not suffficient. The handoff operation requires cooperation of switch and base station and accurate synchronization of base stations.
IPC 1-7
IPC 8 full level
H04L 12/28 (2006.01); H04L 12/56 (2006.01); H04W 36/08 (2009.01); H04W 36/32 (2009.01); H04W 36/38 (2009.01); H04W 56/00 (2009.01); H04W 84/16 (2009.01)
CPC (source: EP US)
H04W 36/0058 (2018.08 - EP US); H04W 36/38 (2013.01 - EP); H04W 56/00 (2013.01 - EP); H04W 84/16 (2013.01 - EP)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 02058248 A2 20020725; WO 02058248 A3 20030403; AU 2002249807 A1 20020730; EP 1348259 A2 20031001; EP 1348259 A4 20080130
DOCDB simple family (application)
US 0148463 W 20011218; AU 2002249807 A 20011218; EP 01998047 A 20011218