Method and system for improving uplink performance
First Claim
1. A distributed antenna system comprising:
- a plurality of remote units, each remote unit comprising at least one antenna; and
at least one signal regeneration component, the signal regeneration component coupled with at least one of the plurality of remote units via an input port, including;
a demodulation block adapted to demodulate all active input signals present on the input port and extract symbol information carried by each of the active input signals; and
a re-modulation block adapted to receive the extracted symbol information and to re-generate a signal of symbols for each of the active input signals for transmission through the distributed antenna system.
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Accused Products
Abstract
The present invention is directed to improvements for distributed antenna systems and more particularly to methods and systems for improving uplink communications. In one embodiment, Aggregation Point Noise Blocking provides for blocking or filtering the noise contributed by one or more of the branches coupled to an aggregation point that are not carrying the signal from a particular terminal. Signal activity from a given terminal on a particular branch can be identified and that information can be used to selectively block or filter the signal noise contributed by the other branches to an aggregation point. The selective blocking or filtering can also include an attenuation function to attenuate the signal and provide dynamic range smoothing. In another embodiment the signal can be regenerated to produce a signal that has a restored or very high SNR. An uplink regeneration block can be provided which demodulates the uplink signal to recover the transmitted information and then re-modulates the transmitted information to regenerate a signal at a restored or very high SNR.
256 Citations
18 Claims
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1. A distributed antenna system comprising:
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a plurality of remote units, each remote unit comprising at least one antenna; and at least one signal regeneration component, the signal regeneration component coupled with at least one of the plurality of remote units via an input port, including; a demodulation block adapted to demodulate all active input signals present on the input port and extract symbol information carried by each of the active input signals; and a re-modulation block adapted to receive the extracted symbol information and to re-generate a signal of symbols for each of the active input signals for transmission through the distributed antenna system. - View Dependent Claims (2, 3, 4, 5, 11, 12, 13, 15, 18)
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6. A method of transmitting a signal through a distributed antenna system comprising:
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providing a plurality of remote units, each remote unit having at least one antenna; providing a plurality of signal regeneration components, each signal regeneration component coupled with at least one remote unit among the plurality of remote units via an input port; at least one of the signal regeneration components demodulating all active input signals present on the input port to extract symbol information carried by each of the active input signals; and re-modulating the extracted symbol information to re-generate a signal of symbols for each of the active input signals adapted for transmission through the distributed antenna system. - View Dependent Claims (7, 8, 9, 10, 16)
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14. A distributed antenna system comprising:
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a plurality of antennas; a plurality of signal regeneration components, at least one signal regeneration component coupled with each of the plurality of antennas via an input port, each signal regeneration component including; a demodulation block adapted to demodulate all active input signals present on the input port and extract symbol information carried by each of the active input signals; and a re-modulation block adapted to receive the extracted symbol information and to re-generate a signal of symbols for each of the active input signals for transmission through the distributed antenna system. - View Dependent Claims (17)
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Specification