Repeater diversity system
First Claim
Patent Images
1. A repeater diversity system comprising:
- a main null antenna having a given phase center and polarization for receiving a communications signal from a remote signal source;
a donor antenna for transmitting a signal to a base station;
a diversity null antenna having the same phase center as the main null antenna and a polarization orthogonal to the polarization of the main null antenna;
a combining network coupled to the main null antenna and the diversity null antenna for combining received signals therefrom to constitute diversity combined receive signals, the combining network further configured to phase align the received signals; and
an uplink channel module coupled with said combining network for delivering said diversity combined receive signals to said donor antenna.
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Abstract
A repeater diversity system includes a null antenna having a given phase center and polarization for receiving a communications signal from a remote signal source, a donor antenna for transmitting a signal to a base station, and a diversity null antenna having the same phase center as the receive null antenna and a polarization orthogonal to the polarization of the main null antenna. A combining network is coupled to the main null antenna and the diversity null antenna for combining the signals therefrom and an uplink channel module is coupled with the combining network for delivering diversity combined receive signals to the donor antenna.
49 Citations
19 Claims
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1. A repeater diversity system comprising:
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a main null antenna having a given phase center and polarization for receiving a communications signal from a remote signal source;
a donor antenna for transmitting a signal to a base station;
a diversity null antenna having the same phase center as the main null antenna and a polarization orthogonal to the polarization of the main null antenna;
a combining network coupled to the main null antenna and the diversity null antenna for combining received signals therefrom to constitute diversity combined receive signals, the combining network further configured to phase align the received signals; and
an uplink channel module coupled with said combining network for delivering said diversity combined receive signals to said donor antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A repeater diversity method for a repeater having a main null antenna with a given phase center and polarization for receiving a communications signal from a remote signal source and a donor antenna for transmitting a signal to a base station, said method comprising:
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providing a diversity null antenna having the same phase center as the main null antenna and a polarization orthogonal to the polarization of the main null antenna;
combining the signals from the main null antenna and the diversity null antenna with phase alignment to constitute diversity combined receive signals; and
delivering the combined signals to said donor antenna. - View Dependent Claims (14, 15)
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16. A repeater diversity system comprising:
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a main null antenna having a given phase center and polarization for receiving a communications signal from a remote signal source;
a donor antenna for transmitting a signal to a base station;
a diversity null antenna having the same phase center as the main null antenna and a polarization orthogonal to the polarization of the main null antenna;
a combining network coupled to the main null antenna and the diversity null antenna for combining received signals therefrom to constitute diversity combined receive signals;
an uplink channel module coupled with said combining network for delivering said diversity combined receive signals to said donor antenna;
a first low noise amplifier coupled intermediate said main null antenna and said combining network and having a predetermined gain; and
a second low noise amplifier coupled intermediate said diversity null antenna and said combining network and having the same gain as the first low noise amplifier, such that the signals from the main null antenna and the diversity null antenna are combined at the combining network with equal gain. - View Dependent Claims (17)
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18. A repeater diversity method for a repeater having a main null antenna with a given phase center and polarization for receiving a communications signal from a remote signal source and a donor antenna for transmitting a signal to a base station, said method comprising:
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providing a diversity null antenna having the same phase center as the main null antenna and a polarization orthogonal to the polarization of the main null antenna;
combining the signals from the main null antenna and the diversity null antenna to constitute diversity combined receive signals wherein said combining includes combining the signals from the main null antenna and the diversity null antenna with equal gain; and
delivering the combined signals to said donor antenna. - View Dependent Claims (19)
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Specification