CELLULAR NETWORK AMPLIFIER WITH AUTOMATED OUTPUT POWER CONTROL
First Claim
1. A network amplifier, comprising:
- a first variable gain module having an input configured to receive an uplink signal from a handset and configured to apply a first amplification factor to the uplink signal to generate an adjusted uplink signal to be transmitted to a base station;
a first detector configured to detect a level of the uplink signal;
a gain control module configured to control the first amplification factor of the first variable gain module for limiting the output of the first variable gain module to ensure that the level of the adjusted uplink signal does not exceed a first predetermined limit; and
a first antenna coupled to an output of the first variable gain module and configured to transmit the adjusted uplink signal to a base station.
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Accused Products
Abstract
A system and method for amplifying cellular signals while maintaining the output power of the amplifier below a prescribed power limit. The network amplifier system may include a variable gain module having an input configured to receive an uplink signal from a handset and configured to apply an amplification factor to the uplink signal to generate an adjusted uplink signal. A detector is used for detecting a level of the uplink signal. A gain control module is configured to control the amplification factor in order to limit the output of the variable gain module to ensure that the level of the adjusted uplink signal does not exceed a predetermined limit. An antenna is coupled to the output of the variable gain module and is configured to transmit the adjusted uplink signal to a base station.
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Citations
20 Claims
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1. A network amplifier, comprising:
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a first variable gain module having an input configured to receive an uplink signal from a handset and configured to apply a first amplification factor to the uplink signal to generate an adjusted uplink signal to be transmitted to a base station; a first detector configured to detect a level of the uplink signal; a gain control module configured to control the first amplification factor of the first variable gain module for limiting the output of the first variable gain module to ensure that the level of the adjusted uplink signal does not exceed a first predetermined limit; and a first antenna coupled to an output of the first variable gain module and configured to transmit the adjusted uplink signal to a base station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 12)
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8. A network amplifier, comprising:
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a first antenna configured to receive an uplink signal from a handset; a first detector for detecting a level of the uplink signal; a first gain module configured to apply a first amplification factor to the uplink signal to generate an adjusted uplink signal, the first gain module comprising; a first amplifier configured to amplify the uplink signal; and a first multistage attenuator configured to attenuate the uplink signal by progressively activating stages of attenuation as the level of the uplink signal increases in order to maintain the adjusted uplink signal level below a first predetermined level, wherein the first amplification factor equals a combined effect of the first amplifier and the first multistage attenuator; and a second antenna coupled to an output of the first gain module and configured to transmit the adjusted uplink signal to a base station. - View Dependent Claims (9, 10, 11, 13, 14)
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15. In a network amplifier, one or more computer readable media having stored thereon computer executable instructions that, when executed by a processor, can cause the network amplifier to perform a method for variably amplifying a cellular signal, the method comprising:
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receiving an uplink signal from a handset via a first antenna; measuring a level of the uplink signal; determining if amplifying the uplink signal using a first amplification factor generates an adjusted uplink signal having a level that exceeds a first predetermined limit; adjusting the first amplification factor in the event that the adjusted uplink signal level exceeds the first predetermined limit such that the adjusted uplink signal level remains below the first predetermined limit; amplifying the uplink signal using the resultant first amplification factor to generate the adjusted uplink signal; and transmitting the adjusted uplink signal to a base station via a second antenna. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification