H - Electricity – 04 – W
Patent
H - Electricity
04
W
H04W 36/08 (2009.01) H04W 36/18 (2009.01) H04W 48/16 (2009.01)
Patent
CA 2344482
A communication system that allows a soft handoff to be completed, even when the communications link between the active base station and the mobile station deteriorates before the mobile station (101) has received the handoff direction message. The mobile station maintains a list of base stations that the mobile station (101) is in communication with, referred to as an "Active Set". In addition, the mobile station (101) maintains another list of base stations (300) that are proximate to the base stations (300) in the active set. This list is referred to as the "Neighbor Set". A memory within the mobile station (101) includes information that would allow the mobile station (101) to demodulate information transmitted from those base stations (300) on the neighbor set. In accordance with the disclosed method and apparatus, the mobile station (101) places a base station (300) in the active set upon including the base station (300) in a pilot strength measurement message (PSMM).
Système de communication permettant d'effectuer un transfert doux, même quand la liaison de communications entre la station de base active et la station mobile se détériore avant la réception du message de direction de transfert par la station mobile (101). Cette dernière détient une liste de stations de base avec lesquelles elle est en communication, désignée en tant qu'ensemble actif. De plus, la station mobile (101) détient une autre liste de stations de base (300) proche des stations de base (300) de l'ensemble actif. Cette liste est désignée en tant qu'ensemble voisin. Une mémoire de la station mobile (101) comporte des informations qui permettraient à la station mobile (101) de démoduler les informations transmises depuis les stations de base (300) de l'ensemble voisin. D'après le procédé et le dispositif décrits par l'invention, la station mobile (101) place une station de base (300) dans l'ensemble actif lorsqu'elle comprend cette station de base (300) dans un message de mesure de force de pilote (PSMM).
Bender Paul
Grob Matthew S.
Hoagland Greg M.
Karmi Gadi
Kimball Robert H.
Qualcomm Incorporated
Smart & Biggar
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