Rake-based cdma receivers for multiple receiver antennas

Details Rake-based cdma receivers for multiple receiver antennas Rake-based cdma receivers for multiple receiver antennas

H - Electricity

04

B

H04B 7/08 (2006.01) H04B 1/707 (2006.01)

Patent

CA 2540381

A receiver (fig.2) comprises a plurality of antenna elements (210) for receiving a data signal. Each antenna element (210) has a plurality of Rake fingers (200). Each Rake finger (200) processes a received multipath component of the received data signal of its antenna element (210) by applying a complex weight gain to that received multipath component. A complex weight gain generator (205) determines the complex weight gain for each Rake finger (200) for each antenna element (210) using an input from all the Rake fingers (200). A summer (225) combines an output of each Rake finger (200) to produce an estimate of the data signal.

La présente invention concerne un récepteur comprenant une multitude d'éléments d'antennes permettant de recevoir un signal de données. Chaque élément d'antenne présente une pluralité de doigts Rake. Chaque doigt Rake traite un composant à trajets multiples reçu du signal de données reçu transmis par son élément d'antenne, par application d'un gain à pondérations complexes audit élément à trajets multiples reçu. Un générateur de gain à pondérations complexes détermine le gain à pondérations complexes pour chaque doigt Rake pour chaque élément d'antenne au moyen d'une entrée provenant de tous les doigts Rake. Un sommateur combine une sortie de chaque doigt Rake afin de produire une estimation du signal de données.

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