Patent ID: 8638835
Filing Date: 2014-01-28
Classification: H04B

Abstract:
1. A method for controlling gain in a wireless repeater, the method comprising: receiving a receive signal at a first antenna of the wireless repeater, the receive signal being a sum of a remote signal to be repeated and a feedback signal resulting from a feedback channel between the first antenna and a second antenna, the feedback channel thus forming a feedback loop between the first and second antennas; transmitting an amplified signal over the second antenna of the wireless repeater, the amplified signal being amplified by a gain value; computing at least one gain control metric being indicative of stability and output signal quality of the wireless repeater and generating a first gain setting value; determining one or more maximum signal headrooms associated with circuitry of the wireless repeater and generating a second gain setting value; and determining the gain value of the amplified signal based on the first and second gain setting values, the gain value being selected to maintain the stability of the feedback loop of the wireless repeater and to not exceed the one or more maximum signal headrooms associated with the circuitry of the wireless repeater.