PROCESSOR CONTROLLED VARIABLE GAIN CELLULAR NETWORK AMPLIFIER
First Claim
1. A network amplifier, comprising:
- an antenna configured to receive a downlink signal from a base station;
a first variable gain module having an output coupled to the antenna and an input configured to receive an uplink signal from a handset, the first variable gain module applying a first amplification factor to the uplink signal to generate an adjusted uplink signal to be transmitted to the base station via the antenna;
a processor for determining a value of the first amplification factor, the value being a function of a level of the downlink signal, and being selected so that interference introduced into a cellular network by the transmission of the adjusted uplink signal is substantially eliminated.
6 Assignments
0 Petitions
Accused Products
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.
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Citations
22 Claims
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1. A network amplifier, comprising:
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an antenna configured to receive a downlink signal from a base station; a first variable gain module having an output coupled to the antenna and an input configured to receive an uplink signal from a handset, the first variable gain module applying a first amplification factor to the uplink signal to generate an adjusted uplink signal to be transmitted to the base station via the antenna; a processor for determining a value of the first amplification factor, the value being a function of a level of the downlink signal, and being selected so that interference introduced into a cellular network by the transmission of the adjusted uplink signal is substantially eliminated. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. 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 (9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. 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 a downlink signal from a base station via a first antenna; receiving an uplink signal from a handset via a second antenna; analyzing properties of at least one of the downlink and uplink signals to determine a required signal level at which a signal is to be transmitted by a network amplifier in order to reach the base station; determining an amplification factor such that when the amplification factor is applied to the uplink signal, an amplified uplink signal results that satisfies the required signal level; applying the amplification factor to the uplink signal to generate the amplified uplink signal; and transmitting the amplified uplink signal to the base station via the first antenna. - View Dependent Claims (19, 20, 21, 22)
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Specification