Cellular communication device with scanning receiver and continuous mobile communication system employing same
AssigneeEricsson Inc.
InventorPaul W. Dent
Life of this patent
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Abstract
A receiver receives communication signals on an assigned frequency channel while monitoring the signals received on other frequency channels. A communication processor processes the received communication signals from the current base station while a wideband digitizer processes received filtered signals on the other frequency channels, which correspond to the neighboring base stations. The wideband digitizer generates numerical samples representing the filtered signals in response to a control signal generated by a control processor. The control processor then determines characteristic signals of the frequency channels.
Claims17
An improved receiver for receiving communications signals on an assigned frequency channel and monitoring the signals received on other frequency channels, comprising:
- an antenna for receiving signals;
- a filter for filtering the received signals and rejecting signals outside a given receive frequency band to produce a filtered signal;
- a communications receiver for processing the filtered signal to select a signal at an assigned frequency for communication and decoding of the selected signal;
- a wideband digitizer responsive to a power enable signal for processing the filtered signal and generating a corresponding stream of numerical samples representing the filtered signal;
- and
- a control processor for generating the power enable signal at determined intervals for storing the numerical samples and processing the stored samples to determine characteristics of signals on the other frequency channels.
Dependencies are inferred from the claim text.