H - Electricity – 04 – W
Patent
H - Electricity
04
W
H04W 36/08 (2009.01)
Patent
CA 2653421
An object of the present invention is to provide a mechanism for handling a handover in a more efficient way. The invention relates to a method in a mobility controller (180) in a radio access network for preparing a handover. The method comprises the following steps to be taken during data transmission between a mobile terminal (140) and a source base station (120), before the handover: Sending a request to a candidate base station (122), which request aims at measuring and reporting timing alignment to be used by the mobile terminal (140) when communicating with the destination base station (122) after the handover, if the candidate base station becomes the destination base station (122) after the handover; receiving a report from the destination base station (122) comprising said requested timing alignment; and when the destination base station (122) is selected among the at least one candidate base stations, sending a message to the mobile terminal (140) to use said timing alignment received from the destination base station (122) when communicating with the destination base station (122) after the handover.
La présente invention concerne un mécanisme pour gérer un transfert intercellulaire d'une manière plus efficace. L'invention concerne un procédé dans un dispositif de commandé de mobilité (180) dans un réseau d'accès radio pour préparer un transfert intercellulaire. Le procédé comprend les étapes suivantes à suivre pendant la transmission de données entre un terminal mobile (140) et une station de base source (120), avant le transfert intercellulaire : envoi d'une demande à une station de base candidate (122), laquelle demande vise à mesurer et signaler un alignement de synchronisation à utiliser par le terminal mobile (140) en cas de communication avec la station de base destinataire (122) après le transfert intercellulaire, si la station de base candidate devient la station de base destinataire (122) après le transfert intercellulaire ; réception d'un rapport provenant de la station de base destinataire (122) comprenant ledit alignement de synchronisation demandé ; et lorsque la station de base destinataire (122) est sélectionnée parmi lesdites stations de base candidates, envoi d'un message au terminal mobile (140) pour utiliser ledit alignement de synchronisation reçu de la station de base destinataire (122) en cas de communication avec la station de base destinataire (122) après le transfert intercellulaire.
Furuskaer Anders
Kallin Harald
Lindstroem Magnus
Mueller Walter Gerhard Alois
Simonsson Arne
Ericsson Canada Patent Group
Telefonaktiebolaget L. M. Ericsson (publ)
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