Method and apparatus for media access control -based fast...

Details Method and apparatus for media access control -based fast... Method and apparatus for media access control -based fast...

H - Electricity

04

W

H04W 36/02 (2009.01) H04W 36/08 (2009.01) H04W 36/18 (2009.01)

Patent

CA 2718737

Methods and apparatuses for facilitating switching HSPA (high speed packet access) serving cells from each of an RNC (radio network controller), base station, and access terminal are provided. The RNC pre-configures an access terminal and each base station in an active set for HS-DSCH operation by providing identification codes identifying each of the base stations. The RNC transmits data packets tagged with sequence numbers to each base station where they are synchronously buffered. The access terminal initiates a handover by transmitting a PDU (protocol data unit) to each of the base stations. The PDU is encoded with the identification code of a target base station and a sequence number of a subsequent packet. The target receives the PDU and directly completes the handover with the access terminal.

La présente invention concerne des procédés et des appareils permettant de faciliter la commutation HSPA (accès haut débit aux paquets) servant des cellules provenant d'un RNC (contrôleur de réseau radio), d'une station de base et d'un terminal d'accès. Le RNC pré-configure un terminal d'accès et chaque station de base dans un ensemble actif pour l'opération HS-DSCH en fournissant les codes d'identification identifiant chacune des stations de base. Le RNC transmet les paquets de données balisés avec des numéros de séquence vers chaque station de base où ils sont mis en tampon de façon synchrone. Le terminal d'accès initie un transfert en transmettant un PDU (unité de données de protocole) à chaque station de base. Le PDU est codé avec le code d'identification d'une station de base cible et un numéro de séquence d'un paquet de séquence. La cible reçoit le PDU et termine directement le transfert avec le terminal d'accès.

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