SYSTEM AND METHOD FOR WAKING UP BDA
A system for managing an uplink amplification chain in a coverage extension system is disclosed. The system includes a transceiver unit; an uplink amplification chain including one or more amplifiers; and an ON/OFF mechanism that turns ON or OFF the uplink amplification chain totally or partially. The uplink amplification chain is located within the transceiver unit. The ON/OFF mechanism receives from an external source instructions directing the ON/OFF mechanism when to turn ON or OFF the amplification chain totally or partially.
1 . A system for managing an uplink amplification chain in a coverage extension system comprising:
a transceiver unit;
an uplink amplification chain comprising one or more amplifiers; and
an ON/OFF mechanism that turns ON or OFF the uplink amplification chain totally or partially;
wherein the uplink amplification chain is located within the transceiver unit; and
wherein the ON/OFF mechanism receives from an external source instructions directing the ON/OFF mechanism when to turn ON or OFF the amplification chain totally or partially.
2 . The system of claim 1 , wherein the ON/OFF mechanism turns ON or OFF the transceiver unit based on instructions received from the external source.
3 . The system of claim 1 , wherein the ON/OFF mechanism turns OFF the uplink amplification chain partially by turning OFF one or more amplifiers in the amplification chain.
4 . The system of claim 1 , wherein the ON/OFF mechanism turns OFF the uplink amplification chain partially by setting one or more amplifiers in the amplification chain to have a zero gain.
5 . The system of claim 1 , wherein the ON/OFF mechanism comprises a mechanical ON/OFF switch, an ON/OFF button, or a dry contact sensing device.
6 . The system of claim 5 , wherein the dry contact sensing device comprises an opto-coupled sensor, or a relay.
7 . The system of claim 1 , wherein the ON/OFF mechanism turns ON the uplink amplification chain partially or totally when the external source alerts the ON/OFF mechanism that there is a fire alarm.
8 . The system of claim 1 , wherein the ON/OFF mechanism turns OFF the uplink amplification chain totally when the external source alerts the ON/OFF mechanism that there is no fire alarm.
9 . The system of claim 1 , wherein the external source is a fire alarm system.
10 . The system of claim 1 , wherein the ON/OFF mechanism is located within the transceiver unit.
11 . The system of claim 1 , wherein the transceiver unit is a bidirectional amplifier, a remote unit of a distributed antenna system, or a master unit of a distributed antenna system.
12 . The system of claim 1 , wherein said one or more amplifiers comprise a digital variable gain RF amplifier.
13 . A system for managing an uplink amplification chain in a coverage extension system comprising:
a transceiver unit;
an uplink amplification chain comprising one or more amplifiers;
an ON/OFF mechanism that manages the connection, disconnection, or attenuation of uplink signals; and
an RF connection and disconnection circuitry;
wherein the uplink amplification chain is located within the transceiver unit; and
wherein the ON/OFF mechanism receives from an external source instructions directing the ON/OFF mechanism to manage the RF connection and disconnection circuitry to
connect or disconnect an output of the amplification chain from a donor antenna radiating an uplink signal towards a base station, or
to provide attenuation between uplink output signals from the amplification chain and said donor antenna radiating an uplink signal towards a base station.
14 . The system of claim 13 , wherein the amplification chain is partially or totally ON.
15 . The system of claim 13 , wherein the RF connection and disconnection circuitry comprises a coaxial RF relay that connects and disconnects the antenna, or an RF attenuator that provides high attenuation to both uplink signals and noise coming out of the amplification chain.
16 . The system of claim 13 , wherein the ON/OFF mechanism comprises a mechanical ON/OFF switch, an ON/OFF button, or a dry contact sensing device.
17 . The system of claim 16 , wherein the dry contact sensing device comprises an opto-coupled sensor, or a relay.
18 . The system of claim 13 , wherein the ON/OFF mechanism is located within the transceiver unit.
19 . The system of claim 13 , wherein the RF connection and disconnection circuitry is located within the transceiver unit.
20 . The system of claim 13 , wherein the transceiver unit is a bidirectional amplifier, a remote unit of a distributed antenna system, or a master unit of a distributed antenna system.