Patent ID: 8175028

Claim:
A method of establishing and maintaining isolation status of a radio frequency (RF) repeater that includes a modem device, in a time-division-multiplexed (TDD) system, the method comprising the steps of: registering the RF repeater with a base transceiver station (BTS) using a subscriber modem device coupled to the RF repeater; adjusting the RF output level of a donor RF transceiver, synchronizing the modem device to a BTS transmission received at the donor RF transceiver; providing synchronization information to a server RF transceiver of the repeater via said modem device; performing isolation detection and measurement between a donor transmit antenna and a receive server antenna of the RF repeater via said modem device; and adjusting automatic gain control parameters of the donor RF transceiver and the server RF transceiver based upon the isolation detection and measurement value via said modem device.