Code synchronization unit and method
AssigneeIntel Corporation
InventorsDoron Rainish, David Ben-Eli, David Burshtein, Shlomo Shamai
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Abstract
A pilot acquisition unit for code division multiple access (CDMA) communication systems is provided which includes a fast Hadamard transform (FHT) unit and a pre-Hadamard processing unit. The FHT unit determines the quality, in accordance with a metric, of each of a set of possible pseudo-random number (PN) loadings and the pre-Hadamard processing unit generates a vector u per set of PN loadings. The vector u defines a quality metric of a received pilot signal with the set of possible PN loadings, the pre-Hadamard processing unit providing the vector u to the FHT unit.
Claims7
An apparatus comprising:
- a pilot acquisition unit able to generate, using addition operations only, a first vector based on a set of possible pseudo-random number loadings, at least one of said possible pseudo-random number loadings corresponding to a phase of a pilot signal, said first vector being Hadamard-transformable into a second vector of metric values corresponding to a quality of one or more of said possible pseudo-random number loadings.
A method comprising:
- generating a first vector by applying addition operations only to a set of possible pseudo-random number loadings, at least one of said possible pseudo-random number loadings corresponding to a phase of a pilot signal, wherein said first vector is Hadamard-transformable into a second vector corresponding to a quality metric of at least some of said possible pseudo-random number loadings.
Dependencies are inferred from the claim text.