Processor controlled variable gain cellular network amplifier
DCFirst Claim
1. A network amplifier, comprising:
- an antenna for receiving a downlink signal from a base station;
a communication device for receiving an uplink signal from a handset;
a first variable gain module connected with the communication device, wherein the first variable gain module applies a first amplification factor to the uplink signal to generate an adjusted uplink signal, the adjusted uplink signal transmitted to the base station via the antenna;
a second variable gain module connected to the antenna, wherein the second gain module applies a second amplification factor to the downlink signal to generate an adjusted downlink signal, the adjusted downlink signal communicated to the handset via the communication device;
a first detector that receives the downlink signal from the antenna and determines a level of the downlink signal;
a processor for executing computer-readable instructions; and
one or more computer-readable media having stored thereon the computer-executable instructions that, when executed by the processor, cause the processor to determine a value of the first amplification factor, the value being a function of the level of the downlink signal, and being selected so that the adjusted uplink signal is transmitted with sufficient power to reach the base station.
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Abstract
A system and method for amplifying cellular signals and reducing interference introduced into a cellular network by the network amplifiers. The network amplifier includes an antenna configured to receive a downlink signal from a base station and a variable gain module for amplifying an uplink signal received from a handset. The variable gain module applies an amplification factor to the uplink signal to generate an adjusted uplink signal to be transmitted to the base station via the antenna. A processor is used for determining a value of the amplification factor, where the value of the amplification factor is a function of a level of the downlink signal. The amplification factor may be selected so that interference introduced into a cellular network by the transmission of the adjusted uplink signal is substantially eliminated.
77 Citations
10 Claims
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1. A network amplifier, comprising:
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an antenna for receiving a downlink signal from a base station; a communication device for receiving an uplink signal from a handset; a first variable gain module connected with the communication device, wherein the first variable gain module applies a first amplification factor to the uplink signal to generate an adjusted uplink signal, the adjusted uplink signal transmitted to the base station via the antenna; a second variable gain module connected to the antenna, wherein the second gain module applies a second amplification factor to the downlink signal to generate an adjusted downlink signal, the adjusted downlink signal communicated to the handset via the communication device; a first detector that receives the downlink signal from the antenna and determines a level of the downlink signal; a processor for executing computer-readable instructions; and one or more computer-readable media having stored thereon the computer-executable instructions that, when executed by the processor, cause the processor to determine a value of the first amplification factor, the value being a function of the level of the downlink signal, and being selected so that the adjusted uplink signal is transmitted with sufficient power to reach the base station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification