Wireless relay amplification apparatus

Details Wireless relay amplification apparatus Wireless relay amplification apparatus

2011-06-07

2011-06-07

Ferguson, Keith T (Department: 2618)

Telecommunications

Carrier wave repeater or relay system

Portable or mobile repeater

C455S007000, C455S009000, C455S024000, C455S422100, C455S067110, C370S315000, C370S310000, C370S317000, C375S260000

Reexamination Certificate

active

07957693

ABSTRACT:
A wireless relay amplification apparatus includes an interference canceller which generates cancellation waves to cancel interference waves from a mobile station antenna, which are included in downlink signals received by the base station antenna, a downlink amplifier which amplifies downlink signals from which the interference waves have been canceled by the interference canceller, an uplink amplifier which amplifies uplink signals received by the mobile station antenna, a receiver which detects a level of received signals based on the downlink signals from which the cancellation waves have been canceled by the interference canceller, and outputs a propagation loss calculated based on a difference between the detected reception level and a transmission level of the base station included in notification information in the downlink signals, and a controller which controls gain of at least one of the downlink amplifier and the uplink amplifier based on the propagation loss output by the receiver.

REFERENCES:
patent: 6934511 (2005-08-01), Lovinggood et al.
patent: 7280611 (2007-10-01), Orihashi et al.
patent: 2006/0014491 (2006-01-01), Cleveland
patent: 2000-286772 (2000-10-01), None

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