Broad band and narrow band frequency response equalization
AssigneeCorning Optical Communications LLC
InventorsYury Abramov, Rami Goren, Leonid Perelman, Leonid Polonski, Mordechay Vahedi
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Abstract
A wireless communications system having at least one RIM associated with a remote unit. The RIMs and the remote units (RU) are configured for transmitting and receiving test signal over at least one narrow band of frequencies. The system includes a plurality of signal generators associated with a signal path, each signal generator configured for generating a test signal over the at least one narrow band of frequencies; a controller configured to generate a test signal for the signal path; and, an equalizer for adjusting gain for the signal path according to at least one of the narrow band of frequencies.
Claims20
A wireless communications system comprising:
- a plurality of remote units;
- at least one radio interface module optically coupled to at least one remote unit of the plurality of remote units, the radio interface module and the remote unit configured for transmitting and receiving at least one narrow band of frequencies within a broad band channel over a signal path;
- a signal generator associated with a signal path between the radio interface module and the remote unit, the signal generator configured for generating a test signal;
- a master controller configured to generate the test signal;
- and
- an equalizer for adjusting a gain setting for the signal path according to the at least one narrow band of frequencies.
A method for adjusting a wireless communications system, the method comprising:
- broadcasting a test signal over a frequency range using at least one narrow band of frequencies over an optical signal path;
- detecting power for the test signal at at least one remote unit among a plurality of remote units;
- and
- adjusting gain for the broadcasting for the at least one narrow band of frequencies to increase response over the optical signal path, wherein adjusting the gain is performed prior to broadcasting the test signal for the at least one narrow band of frequencies,
- wherein adjusting the gain for each of the at least one narrow band of frequencies comprises ascertaining a center-point, of each narrow band of frequencies and applying gain settings for the narrow band of frequencies.
A wireless communications system comprising:
- a plurality of radio interface modules, each radio interface module configured to transmit and receive at least one narrow band of frequencies over an optical signal path;
- a head end unit configured for transmitting signals for each of the at least one narrow band of frequencies;
- a plurality of remote units, at least one remote unit of the plurality of remote units being configured for receiving and transmitting signals from the head end unit;
- the at least one remote unit comprising at least one broad band equalizer module, at least one narrow band equalizer module and at least one equalizer controller, the equalizer controller configured for determining a gain adjustment to be applied by the broad band equalizer module and the narrow band equalizer modules;
- and
- a master controller configured for controlling the radio interface module and the equalizer controller.
Dependencies are inferred from the claim text.