AGC with integrated wideband interferer detection
AssigneeFreescale Semiconductor, Inc.
InventorsJames Hughes, Lynn Freytag, Mahibur Rahman
Life of this patent
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Abstract
An automatic gain control (AGC) system for a receiver and corresponding method facilitate AGC in a receiver. The AGC system includes an on-channel detector 123 configured to provide an on-channel automatic gain control (AGC) indication; an off-channel signal detector 145 configured to provide an off-channel AGC indication; and a controller 143, 173 coupled to the on-channel AGC indication and the off-channel AGC indication and configured to provide a gain control signal corresponding to at least one of the on-channel AGC indication and the off-channel AGC indication.
Claims20
An automatic gain control system for a receiver comprising:
- an on-channel detector configured to provide an on-channel automatic gain control (AGC) indication;
- an off-channel signal detector configured to provide an off-channel AGC indication;
- and
- a controller coupled to the on-channel AGC indication and the off-channel AGC indication and configured to provide a gain control signal corresponding to at least one of the on-channel AGC indication and the off-channel AGC indication.
A method of facilitating automatic gain control (AGC) in a receiver, the method comprising:
- providing an on-channel AGC indication and an off-channel AGC indication;
- selecting at least one of the on-channel AGC indication and the off-channel AGC indication;
- and
- providing, responsive to the selecting, a gain control signal that is dependent on the at least one of the on-channel AGC indication and the off-channel AGC indication.
An integrated circuit for facilitating automatic gain control (AGC) for a receiver, the integrated circuit comprising:
- a narrow band AGC detector;
- a digital wideband AGC detector;
- and
- a controller coupled to the narrow band AGC detector and the digital wideband AGC detector, the controller configured to provide a gain control signal.
Dependencies are inferred from the claim text.