Method and apparatus for defining a search window based on...

H - Electricity – 04 – B

Patent

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Details

H04B 7/26 (2006.01) H04W 56/00 (2009.01)

Patent

CA 2704495

An access terminal defines a search window based on a distance between access points. Here, a first one of the access points may comprise a macro access point from which the access ter-minal acquires timing. The search window may be used to monitor for pilot signals from a second one of the access points. For exam-ple, the second access point may comprise a femto node that provides relatively small area coverage. In some aspects the definition of the search window may involve adjusting (e.g., advancing) a center of a search window based on the distance between the access points. In addition, the access terminal may employ a smaller search window when it is searching for pilot signals from a femto node as compared to when it is searching for pilot signals from a macro access point.

L'invention concerne un terminal d'accès qui définit une fenêtre de recherche en fonction d'une distance entre des points d'accès. Ici, un premier point d'accès parmi les points d'accès peut comporter un macro point d'accès auprès duquel le terminal d'accès acquiert la synchronisation. La fenêtre de recherche peut être utilisée pour surveiller des signaux de commande provenant d'un second point d'accès parmi les points d'accès. Le second point d'accès peut, par exemple, comporter un nud femto qui procure une zone de couverture relativement faible. Dans certains cas, la définition de la fenêtre de recherche peut impliquer d'ajuster (par exemple, faire avancer) un centre d'une fenêtre de recherche en fonction de la distance entre les points d'accès. En outre, le terminal d'accès peut utiliser une fenêtre de recherche plus petite lorsqu'il recherche des signaux de commande à partir d'un nud femto que lorsqu'il recherche des signaux de commande à partir d'un macro point d'accès.

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