Title (en)

INTERCELL HANDOVER METHOD FOR A MOBILE STATION CALL IN A CELLULAR RADIO NETWORK

Title (de)

WEITERREICHUNGSVERFAHREN EINES MIT EINEM MOBILFUNKTELEFON AUSGESANDTEN RUFES IN EUNEM ZELLULAEREN FUNKUEBERTRAGUNGSNETZWERKES

Title (fr)

PROCEDE DE TRANSFERT DE CELLULE A CELLULE D'UNE COMMUNICATION ETABLIE AVEC UN MOBILE, DANS UN RESEAU CELLULAIRE DE RADIOCOMMUNICATIONS

Publication

EP 0789979 A1 19970820 (FR)

Application

EP 95936601 A 19951024

Priority

• FR 9501407 W 19951024
• FR 9412820 A 19941026

Abstract (en)

[origin: WO9613953A1] A secure handover method for a call to a mobile station (M), including a cycle wherein up call data (DM) transmitted by the mobile station (M) on a current channel (CH1) to a current base station are received (ET3) by a subsequent base station (B(n)) on a subsequent channel (CH2), down call data are simultaneously transmitted (ET5) for a given time (T) on said current and subsequent channels (CH1, CH2) by the current and subsequent base stations (B(n-1), B(n)) respectively, as long as (ET4) the time lag (TA) between the respective reception times of said up data on the current (CH1) and subsequent (CH2) channels is lower than a first predetermined threshold (S), and when said time (T) has elapsed, the call is released (ET6, LIB) on said current channel and enabled on the subsequent channel (CH2), which becomes the new current channel.

IPC 1-7

H04Q 7/38

IPC 8 full level

H04W 36/32 (2009.01); H04W 56/00 (2009.01)

CPC (source: EP US)

H04W 56/0045 (2013.01 - EP US)

Designated contracting state (EPC)

AT CH DE ES FR GB IT LI

DOCDB simple family (publication)

WO 9613953 A1 19960509; AU 3317095 A 19960509; AU 701162 B2 19990121; CA 2202929 A1 19960509; EP 0789979 A1 19970820; FR 2726425 A1 19960503; FR 2726425 B1 19961220; NZ 280225 A 19970324; US 5995835 A 19991130

DOCDB simple family (application)

FR 9501407 W 19951024; AU 3317095 A 19951011; CA 2202929 A 19951024; EP 95936601 A 19951024; FR 9412820 A 19941026; NZ 28022595 A 19951012; US 81776497 A 19970424