Wireless communication method and apparatus for detecting...

Details Wireless communication method and apparatus for detecting... Wireless communication method and apparatus for detecting...

G - Physics

08

C

G08C 25/02 (2006.01) H04J 1/16 (2006.01) H04L 27/06 (2006.01)

Patent

CA 2618743

A wireless communication method and apparatus for detecting and decoding enhaiced dedicated channel (E-DCH) hybrid automatic repeat request (H-ARQ) indicator channel (E-HICH) transmissions are disclosed. A wireless transmit/receive unit (WTRU) receives E-HICH transmissions (202) and detects an H-ARQ indicator transmitted via the E-HICH by performing a binary hypothesis test (204). The WTRU then generates an acknowledgement (ACK) message or a non acknowledgement (NACK) message based on the detected H-ARQ indicator (206). A reliability test may be further performed to improve performance, whereby the binary hypothesis test may be performed only if the reliability test is passed.

L'invention concerne un procédé et un appareil de communication sans fil pour la détection et le décodage de transmissions de canaux indicateurs (E-HICH) de demandes de répétition automatique hybrides (H-ARQ) via des canaux spécialisés améliorés (E-DCH). Une unité d'émission/réception sans fil (WTRU) reçoit des transmissions E-HICH et détecte un indicateur d'H-ARQ transmis via le E-HICH par mise en oeuvre d'un test d'hypothèse binaire. Le WTRU génère ensuite un message d'accusé de réception (ACK) ou un message de non accusé de réception (NACK) en fonction de l'indicateur d'H-ARQ détecté. Un test de fiabilité peut être également mis en oeuvre afin d'améliorer les performances, le test d'hypothèse binaire pouvant être mis en oeuvre uniquement si le test de fiabilité est réussi.

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