Scheduling techniques for a packet-access network

H - Electricity – 04 – B

Patent

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Details

H04B 15/00 (2006.01) H04W 28/04 (2009.01) H04W 72/04 (2009.01) H04B 1/7103 (2011.01) H03M 13/09 (2006.01) H03M 13/29 (2006.01)

Patent

CA 2500168

Multiple access interference may be substantially removed by introducing a near-far situation in which a near mobile and a far mobile ("near" and "far" based on signal strength) are selected, resources allocated among these and other mobiles, and the data is packetized for transmission during a transmission interval such that the data intended for the far mobile is transmitted along with the data intended for the near mobile. Forward link signals are then appropriately scheduled. Signals intended for the far mobile and the near mobile are decoded from the composite signal received at the near mobile. The signal intended for the far mobile is then removed from the composite signal received at the near mobile.

Selon l'invention, plusieurs interférences d'accès peuvent être sensiblement éliminées par introduction d'une situation proche-éloigné dans laquelle un dispositif mobile proche et un dispositif mobile éloigné ("proche" et "éloigné" dépendant de la puissance des signaux) sont sélectionnés, des ressources sont attribuées parmi ceux-ci et d'autres dispositifs mobiles et les données sont mises en paquets aux fins d'émission pendant un intervalle d'émission, de manière que les données destinées au dispositif mobile éloigné soient émises conjointement avec les données destinées au dispositif mobile proche. Des signaux de liaison aval sont ensuite programmés de manière appropriée. Des signaux destinés au dispositif mobile éloigné et au dispositif mobile proche sont décodés à partir du signal composite reçu au niveau du dispositif mobile proche. Le signal destiné au dispositif mobile éloigné est ensuite retiré du signal composite reçu au niveau du dispositif mobile proche.

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