Method and apparatus for managing uplink resource allocation...

H - Electricity – 04 – W

Patent

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H04W 74/04 (2009.01)

Patent

CA 2600448

A method and apparatus resolves conflicts and ambiguities of GSM standards arising in DTM by monitoring only selected downlink timeslots for uplink status flags (USFs). Downlink timeslots with a packet data channel (PDCH) are monitored for a USF from a lowest numbered time slot, B(0), to a maximum time slot B(MAX) where B(MAX) is equal to the lowest transmission uplink timeslot, B(x), in the corresponding TDMA uplink frame if the second lowest transmission uplink timeslot B(x) + 1, is a circuit switched timeslot and where B(MAX) is equal to the second lowest transmission timeslot in the corresponding TDMA frame, B(x) + 1, otherwise.

L'invention concerne un procédé et un appareil permettant de résoudre les conflits et les ambiguïtés des normes GSM survenant en mode transfert double (DTM) par le contrôle de drapeaux de statut de liaison montante (USF) des seuls intervalles de temps de liaison descendante sélectionnés. Un USF d'intervalles de temps de liaison descendante avec une voie de données par paquets (PDCH) est contrôlé à partir d'un intervalle de temps de chiffre le plus bas, B(0), jusqu'à un intervalle de temps maximum B(MAX), B(MAX) étant égal à l'intervalle de temps de liaison montante de transmission la plus basse, B(x), dans la trame de liaison montante AMRT correspondante si le deuxième intervalle de temps de liaison montante de deuxième transmission la plus basse, B(x)+1, est un intervalle de temps à commutation de circuits, B(MAX) étant autrement égal à l'intervalle de temps de deuxième transmission la plus basse dans la trame AMRT correspondante, B(x)+1.

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