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1. WO1997031487 - HANDOVER IN A MOBILE COMMUNICATION SYSTEM

Publication Number WO/1997/031487
Publication Date 28.08.1997
International Application No. PCT/FI1997/000118
International Filing Date 21.02.1997
Chapter 2 Demand Filed 18.09.1997
IPC
H04W 36/30 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Handoff or reselecting arrangements
24Reselection being triggered by specific parameters
30by measured or perceived connection quality data
CPC
H04W 36/0058
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Hand-off or reselection arrangements
0005Control or signalling for completing the hand-off
0055Transmission and use of information for re-establishing the radio link
0058Transmission of hand-off measurement information, e.g. measurement reports
H04W 36/30
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Hand-off or reselection arrangements
24Reselection being triggered by specific parameters ; used to improve the performance of a single terminal
30by measured or perceived connection quality data
Applicants
  • NOKIA TELECOMMUNICATIONS OY [FI]/[FI] (AllExceptUS)
  • SAVOLAINEN, Jari [FI]/[FI] (UsOnly)
Inventors
  • SAVOLAINEN, Jari
Agents
  • KOLSTER OY AB
Priority Data
96085723.02.1996FI
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) HANDOVER IN A MOBILE COMMUNICATION SYSTEM
(FR) TRANSFERT DANS UN SYSTEME DE COMMUNICATION MOBILE
Abstract
(EN)
The invention relates to a handover method in a mobile communication system where the serving base station (BTS1) measures the level and/or quality of the uplink signal of a mobile station (MS). The base station controller (BSC) commands neighbouring base stations (BTS2, BTS3) to measure the level and/or quality of the uplink signal of the mobile station (MS), when the serving base station (BTS1) has measured an uplink signal level and/or quality lower than a predetermined triggering value. The base station controller (BSC) performs a handover to the neighbouring base station (BTS2, BTS3) that has measured the most suitable uplink signal level and/or quality, when the serving base station (BTS1) has measured an uplink signal level and/or quality below a predetermined threshold value for handover.
(FR)
L'invention concerne un procédé de transfert dans un système de communication mobile où le poste serveur de base (BTS1) mesure la qualité et/ou le niveau du signal montant d'un poste mobile (MS). La commande des postes de base (BSC) ordonne aux postes de base adjoignants (BTS2, BTS3) de mesurer la qualité et/ou le niveau du signal montant du poste mobile (MS) quand le poste serveur de base (BTS1) a mesuré une qualité et/ou un niveau de signal montant inférieur à une valeur de déclenchement prédéterminée. La commande des postes de base (BSC) effectue un transfert sur le poste de base voisin (BTS2, BTS3) qui a mesuré la qualité et/ou le niveau de signal montant le plus approprié, lorsque le poste serveur de base (BTS1) a mesuré une qualité et/ou un niveau du signal montant inférieur à une valeur seuil nécessaire pour le transfert.
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