Remote front-end for a multi-antenna station
First Claim
1. An apparatus comprising:
- a first amplifier to receive and amplify a first radio frequency (RF) signal and provide a first amplified RF signal;
a second amplifier to receive and amplify a second RF signal and provide a second amplified RF signal;
a first coupling unit to couple the first RF signal from a first port to the first amplifier and to couple the second amplified RF signal from the second amplifier to the first port; and
a second coupling unit to couple the first amplified RF signal from the first amplifier to a second port and to couple the second RF signal from the second,port to the second amplifier.
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Accused Products
Abstract
A multi-antenna station has multiple remote front-ends coupled to multiple antennas. Each remote front-end includes a power amplifier (PA), a low noise amplifier (LNA), and first and second coupling units. On the transmit path, a first RF signal is received via a first port, routed by the first coupling unit to the power amplifier, amplified to obtain the desired output power level, and routed by the second coupling unit to a second port for transmission via the antenna. On the receive path, a second RF signal is received via the second port, routed by the second coupling unit to the LNA, amplified to obtain a higher signal level, and routed by the first coupling unit to the first port for transmission to the transceiver.
129 Citations
36 Claims
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1. An apparatus comprising:
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a first amplifier to receive and amplify a first radio frequency (RF) signal and provide a first amplified RF signal;
a second amplifier to receive and amplify a second RF signal and provide a second amplified RF signal;
a first coupling unit to couple the first RF signal from a first port to the first amplifier and to couple the second amplified RF signal from the second amplifier to the first port; and
a second coupling unit to couple the first amplified RF signal from the first amplifier to a second port and to couple the second RF signal from the second,port to the second amplifier. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus comprising:
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means for amplifying a first radio frequency (RF) signal and generating a first amplified RF signal;
means for amplifying a second RF signal and generating a second amplified RF signal;
means for coupling the first RF signal from a first port to the means for amplifying the first RF signal;
means for coupling the first amplified RF signal to a second port;
means for coupling the second RF signal from the second port to the means for amplifying the second RF signal; and
means for coupling the second amplified RF signal to the first port. - View Dependent Claims (16, 17)
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18. A station equipped with a plurality of antennas, comprising:
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a plurality of transceivers, each transceiver performing signal conditioning for radio frequency (RF) signals transmitted and received via an associated antenna; and
a plurality of remote front-ends, each remote front-end coupled to an associated transceiver and an associated antenna, each remote front-end amplifying a first RF signal received from the associated transceiver to generate a first amplified RF signal for transmission from the associated antenna and further amplifying a second RF signal received from the associated antenna to generate a second amplified RF signal for transmission to the associated transceiver. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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27. A station equipped with a plurality of antennas, comprising:
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means for performing signal conditioning for radio frequency (RF) signals transmitted and received via the plurality of antennas;
means for power amplifying RF modulated signals received from the means for performing signal conditioning to generate amplified RF modulated signals for transmission from the plurality of antennas; and
means for low noise amplifying RF input signals received from the plurality of antennas to generate amplified RF input signals for transmission to the means for performing signal conditioning, wherein the means for power amplifying and the means for low noise amplifying are separate from the means for performing signal conditioning. - View Dependent Claims (28)
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29. A transceiver module, comprising:
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first and second transceivers, each transceiver performing signal conditioning for radio frequency (RF) signals transmitted and received via an associated set of at least one antenna;
an oscillator to generate local oscillator (LO) signals used by the first and second transceivers for frequency conversion between baseband and RF; and
a driver to receive the LO signals from the oscillator and to drive the LO signals from the transceiver module. - View Dependent Claims (30, 31, 32, 33)
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34. A transceiver module, comprising:
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means for performing signal conditioning for radio frequency (RF) signals transmitted and received via at least two antennas;
means for generating local oscillator (LO) signals used for frequency conversion between baseband and RF; and
means for driving the LO signals from the transceiver module. - View Dependent Claims (35, 36)
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Specification