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US 6,628,701 B2Granted
Method and apparatus for reducing spread spectrum noise
AssigneeIntel Corporation
InventorDaniel Yellin
Life of this patent
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Abstract
Apparatus and a method for receiving spread-spectrum signals is provided. The method includes the steps of detecting a noisy user signal from a spread-spectrum signal including at least a first user signal (including data therein) and at least one pilot signal, and removing an interference effect of the pilot signal on the first user signal from the noisy user signal thereby to create a noise reduced user signal.
Claims9
An apparatus, comprising:
- a rake receiver to detect a noisy user signal from a received signal;
- at least two or more pilot processors to synchronize to pilot signals of the received signal;
- at least two or more interference processors to couple to said at least two or more pilot processors to determine at least two or more interference effects of the pilot signals on the received signal;
- and
- a subtractor to remove the at least two or more interference effects of the pilot signals on the received signal.
2 more elements
An apparatus, comprising:
- a CDMA receiver, said CDMA receiver including:
- a rake receiver to produce a data signal in response to a received signal;
- a pilot processor to synchronize to a pilot signal of a neighboring base station;
- an interference processor to determine an interference effect of the pilot signal of the neighboring base station on the received signal;
- and
- a subtractor to remove the interference effect of the pilot signal of the neighboring base station determined by said interference processor from the data signal produced by said rake receiver.
3 more elements
A method, comprising:
- producing a data signal in response to a received CDMA signal;
- detecting pilot signals in the received signal;
- determining an interference effect of an undesired pilot signal on the received signal;
- and
- subtracting the interference effect of the undesired pilot signal from of the data signal.
2 more elements
Dependencies are inferred from the claim text.