Mac layer architecture for supporting enhanced uplink

H - Electricity – 04 – W

Patent

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Details

H04W 80/02 (2009.01) H04W 72/14 (2009.01) H04L 1/18 (2006.01) H04B 7/005 (2006.01)

Patent

CA 2566341

A medium access control (MAC) layer architecture and functionality for supporting enhanced uplink (EU). A MAC entity for EU, (i.e., a MAC-e entity) (120), is incorporated into a wireless transmit/receive unit (WTRU), a Node-B and a radio network controller (RNC). The WTRU MAC-e handles hybrid-automatic repeat request (H-ARQ) (128) transmissions and retransmissions, priority handling, MAC-e (120) multiplexing, and transport format combination (TFC) (126) selection. The Node-B MAC-e (120) entity handles H-ARQ (128) transmissions and retransmissions, E-DCH (102) scheduling and MAC-e (120) de- multiplexing. The RNC MAC-e entity provides in-sequence delivery and handles combining of data from different Node-Bs.

L'invention concerne une architecture à couche de commande d'accès au support (MAC) et des fonctionnalités pouvant prendre en charge une liaison montante améliorée (EU). Une entité MAC pour une EU (c.-à-d. une entité MAC-e) est incorporée dans une unité d'émission-réception sans fil (WTRU), dans un noeud-B et dans un contrôleur de réseau radiophonique (RNC). L'entité MAC-e de la WTRU gère des transmissions et des retransmissions de demandes de répétition automatique-mixte (H-ARQ), les priorités, le multiplexage de MAC-e, et la sélection d'une combinaison de format de transport (TFC). L'entité MAC-e du noeud-B gère des transmissions et des retransmissions, la répartition d'E-DCH et le démultiplexage de MAC-e. L'entité MAC-e du RNC assure une remise dans la séquence et gère la combinaison de données provenant de différents noeuds-B.

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