Handover to any cell of a target base station in a wireless...

Details Handover to any cell of a target base station in a wireless... Handover to any cell of a target base station in a wireless...

H - Electricity

04

W

H04W 36/02 (2009.01)

Patent

CA 2662572

Techniques for performing handover of a user equipment (UE) in a cell-to-base station manner are described. The UE may receive a handover command to perform handover from a source base station to a target base station. The source base station may send context information for the UE to the target base station, and the context information may be available to all cells of the target base station. The UE may attempt handover from a serving cell of the source base station to a first cell of the target base station. The UE may attempt handover to a second cell of the target base station if the handover to the first cell fails. The UE may (i) receive the first and second cells from the source base station or (ii) receive only the first cell from the source base station and determine the second cell based on broadcast system information.

L'invention concerne des techniques pour effectuer un transfert intercellulaire d'un équipement utilisateur (UE) de la manière suivante : cellule vers station de base. L'UE peut recevoir une instruction de transfert intercellulaire pour effectuer un transfert intercellulaire à partir d'une station de base source vers une station de base cible. La station de base source peut envoyer des informations de contexte pour l'UE à la station de base cible, et les informations de contexte peuvent être disponibles pour toutes les cellules de la station de base cible. L'UE peut essayer de faire un transfert intercellulaire à partir d'une cellule de service de la station de base source vers une première cellule de la station de base cible. L'UE peut essayer de faire un transfert intercellulaire vers une seconde cellule de la station de base cible si le transfert vers la première cellule ne réussit pas. L'UE peut (i) recevoir les première et seconde cellules en provenance de la station de base source ou (ii) recevoir uniquement la première cellule provenant de la station de base source et déterminer la seconde cellule sur la base d'informations de système diffusées.

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