Interference suppression in cdma systems

H - Electricity – 04 – B

Patent

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Details

H04B 7/08 (2006.01) H04B 7/216 (2006.01) H04B 15/00 (2006.01)

Patent

CA 2394630

A receiver of the present invention addresses the need for improved interference suppression without the number of transmissions by the power control system being increased, and, to this end, provides a receiver for a CDMA communications system which employs interference subspace rejection (ISR) to tune a substantially null response to interference components from selected signals of other user stations. Preferably, the receiver also tunes a substantially unity response for a propagation channel via which a corresponding user's signal was received. The receiver may be used in a base station or in a user/mobile station. Image

L'invention concerne un récepteur qui répond au besoin d'améliorer l'élimination d'interférence sans que le nombre de transmissions effectuées par le système de commande d'alimentation augmente. À cet effet, un récepteur destiné à un système de communication CDMA fait appel à la suppression du sous-espace d'interférence (ISR) afin d'accorder une réponse sensiblement nulle sur des composants d'interférence de signaux choisis d'autres stations d'utilisateur. De préférence, ce récepteur accorde également une réponse sensiblement unitaire pour un canal de propagation à travers lequel un signal d'utilisateur correspondant a été reçu. Ce récepteur peut être utilisé dans une structure ou dans une station d'utilisateur/station mobile.

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