Communication apparatus and method
AssigneeThe University Court of the University of Edinburgh
InventorsDobroslav TSONEV, Sinan SINANOVIC, Harald HAAS
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Abstract
A method and associated transmission system, signal processor and communications system for converting a signal from a bipolar signal Into a unipolar signal, the method involving applying a pulse shaping filter to the bipolar signal to produce a pulse shaped bipolar signal; and subsequently transforming the negative values of the pulse shaped bipolar signal to produce the unipolar signal. Preferably, the bipolar signal and/or the shaped bipolar signal and/or the unipolar signal have a plurality of frames, and the frames have at least one guard interval, wherein the guard interval(s) include a prefix provided before or at the start of at least one frame and/or a suffix provided after or at the end of at least one frame.
Claims21
1-53. (canceled)
A method for converting a signal from a bipolar signal into a unipolar signal, the method comprising:
- applying a pulse shaping filter to the bipolar signal to produce a pulse shaped bipolar signal;
- and
- subsequently transforming the negative values of the pulse shaped bipolar signal to produce the unipolar signal.
A signal processor configured to convert a signal from a bipolar signal into a unipolar signal, the signal processor being configured to:
- apply a pulse shaping filter to the bipolar signal to produce a pulse shaped bipolar signal;
- and
- transform the negative values of the pulse shaped bipolar signal to produce the unipolar signal.
A transmitter comprising a signal processor and at least one transmitter element for transmitting a processed signal received from the signal processor, wherein the signal processor is configured to convert a signal from a bipolar signal into a unipolar signal, the signal processor being configured to apply a pulse shaping filter to the bipolar signal to produce a pulse shaped bipolar signal and transforming the negative values of the pulse shaped bipolar signal to produce the unipolar signal.
A receiver comprising a signal processor and at least one receiver element for receiving a processed signal, the signal processor comprising a filter for filtering a signal, at least one demodulator for demodulating a signal and an output for outputting an output signal, wherein the receiver element is configured to receive a unipolar signal and the signal processor is configured to convert the unipolar signal into a bipolar signal.
Dependencies are inferred from the claim text.