Cell reselection and handover with multimedia...

H - Electricity – 04 – W

Patent

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Details

H04W 36/08 (2009.01) H04W 36/34 (2009.01)

Patent

CA 2685687

A method and apparatus for providing wireless communication services, (e.g., multimedia broadcast multicast services (MBMS)), are disclosed. A wireless transmit/receive unit (WTRU) detects a plurality of target cell evolved Node-Bs (eNodeBs) that neighbor a serving cell eNodeB. The WTRU evaluates cell reselection criteria and determines a neighboring target cell eNodeB to reselect. The WTRU receives and reads master information block (MIB) and system information messages of the neighboring target cell eNodeB, and confirms that the determined neighboring target cell eNodeB is not part of a multimedia broadcast single frequency network (MBSFN). The WTRU identifies the neighboring target cell eNodeB to the serving cell eNodeB. The WTRU then receives and reads MIB messages of the neighboring target cell eNodeB again to determine whether the system information has changed and, if so, the WTRU reads the system information and reselects to the neighboring target cell eNodeB, which provides the wireless communication services.

Le procédé et l'appareil décrits permettent la fourniture de services de communication sans fil (par exemple, des services de diffusion/multidiffusion multimédia (MBMS)). Une unité émettrice/réceptrice sans fil (WTRU) détecte une pluralité de NAEuds-B évolués (eNodeB) de cellule cible qui sont voisins d'un nAEud eNodeB de cellule de desserte. La WTRU évalue des critères de resélection de cellule et détermine un eNodeB de cellule cible voisin à resélectionner. La WTRU reçoit et lit un bloc d'informations maître (MIB) et des messages d'informations système de l'eNodeB de cellule cible voisin, et confirme que l'eNodeB de cellule cible voisin déterminé ne fait pas partie d'un réseau monofréquence de diffusion multimédia (MBSFN). La WTRU identifie l'eNodeB de cellule cible voisin auprès de l'eNodeB de la cellule de desserte. Ensuite, la WTRU reçoit et lit de nouveau les messages MIB de l'eNodeB de cellule cible voisin pour déterminer si les informations système ont changé et, si tel est le cas, la WTRU lit les informations système et effectue une resélection vers l'eNodeB de cellule cible voisin, qui fournit les services de communication sans fil.

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