Method for placement of fingers with G-Rake advanced receiver
AssigneesSony Corporation, Sony Mobile Communications Inc.
InventorRam Asokan
Life of this patent
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Abstract
An electronic device includes a Rake receiver for receiving wireless signals, wherein the Rake receiver includes a predetermined number of fingers and a combiner. The Rake receiver also includes a channel detection circuit configured to identify at least one channel tap in a received signal, and a placement circuit configured to place a finger of the predetermined number of fingers at a location corresponding to the at least one identified channel tap. If all of the predetermined number of fingers are not associated with a corresponding channel tap, unplaced fingers of the predetermined number of fingers are placed at locations based on a signal-to-interference ratio estimate at an output of the combiner.
Claims18
An electronic device, comprising:
- a Rake receiver for receiving wireless signals, said Rake receiver including a predetermined number of fingers and a combiner for combining de-spreaded signals;
- a channel detection circuit configured to identify a channel tap in a received signal;
- and
- a placement circuit configured to place at least one finger of the predetermined number of fingers at a location corresponding to an identified channel tap, and to place at least one unplaced finger of the predetermined number of fingers at a location based on an estimated signal-to-interference ratio (S/I) at an output of the combiner.
A method for setting fingers of a Rake receiver, said receiver including a combiner for combining de-spreaded signals and a predetermined number of fingers, comprising:
- identifying channel taps in a received signal;
- placing at least one finger of the predetermined number of fingers at a location corresponding to an identified channel tap;
- and
- placing at least one unplaced finger of the predetermined number of fingers at a location based on an estimated signal-to-interference ratio at an output of the combiner.
An electronic device (10), comprising:
- a Rake receiver (14) for receiving wireless signals, said Rake receiver including a predetermined number of fingers (58) and a combiner (60) for combining de-spreaded signals;
- a channel detection circuit (14a) configured to monitor signal energy collected from different delayed versions of a received signal and identify parts of the monitored signal energy that have high signal energy relative to other parts of the received signal;
- and
- a placement circuit (14b) configured to place a finger of the predetermined number of fingers at a location corresponding to the identified relatively high signal energy, wherein unplaced fingers of the predetermined number of fingers are placed at locations based on an estimated signal-to-interference ratio (S/I) at an output of the combiner.
Dependencies are inferred from the claim text.