Access terminal assisted node identifier confusion resolution

H - Electricity – 04 – W

Patent

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Details

H04W 36/08 (2009.01)

Patent

CA 2726504

Confusion resulting from assigning the same node identifier to multiple nodes is resolved through the use of confusion detection techniques and the use of unique identifiers for the nodes. In some aspects a network may provide a time gap (e.g., an asynchronous time gap) during which an access terminal may temporarily cease monitoring transmissions from a source node so that the access terminal may acquire a unique identifier from a target node. In some aspects an access terminal may commence handover operations at a target node after determining whether the access terminal is allowed to access the target node. In some aspects a source node may prepare several target nodes for potential handover in the event confusion is detected or likely. Here, the source node may send information relating to the preparation of the potential target nodes to the access terminal whereby the access terminal uses the handover preparation information to initiate a handover at that target node.

Selon l'invention, une confusion résultant de l'attribution d'un élément d'identification de noeud identique à plusieurs noeuds est résolue par l'utilisation de techniques de détection de confusion et par l'utilisation d'éléments d'identification uniques pour lesdits noeuds. Dans certains aspects de l'invention, un réseau peut produire un intervalle temporel (par exemple, un intervalle temporel asynchrone) pendant lequel un terminal d'accès peut temporairement cesser de surveiller les transmissions provenant d'un noeud source, de sorte que le terminal d'accès peut acquérir un élément d'identification unique provenant d'un noeud cible. Dans certains aspects de l'invention, un terminal d'accès peut démarrer des opérations de transfert au niveau d'un noeud cible après avoir déterminé si le terminal d'accès a l'autorisation d'accéder à ce noeud cible. Dans certains aspects de l'invention, un noeud source peut préparer plusieurs noeuds cibles pour un transfert potentiel, si une confusion est détectée ou probable. Alors, le noeud source peut envoyer des informations concernant la préparation de noeuds cibles potentiels au terminal d'accès, le terminal d'accès utilisant les informations de préparation de transfert pour lancer un transfert au niveau du noeud cible.

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