Parameter generation for interleavers
AssigneeAlcatel-Lucent USA Inc.
InventorsMark Patrick Barry, Benjamin John Widdup
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Abstract
An interleaver parameter generator circuit used to calculate and generate on an as needed basis interleaver parameters for interleaving blocks of information of varying lengths in accordance with a pseudorandom pattern defined by the 3GPP standard. The interleaver parameter generator circuit calculates and generates the defined interleaver parameters based on an input parameter that represents the length of the block of information to be interleaved. At least one of the defined parameters is calculated and generated using a decomposed form of its definition. The interleaver parameter generator circuit uses well known circuit blocks such as multipliers, subtractors, Compare-and-Select circuits and other circuits to calculate and generate the defined parameters.
Claims20
An interleaver parameter generator comprising:
- a processing circuit having at least one input to receive a corresponding input parameter and a plurality of outputs to provide a corresponding plurality of interleaver parameters to an interleaver during generation of interleaving patterns, wherein the processing circuit is configured to calculate said interleaver parameters based at least in part on a first input parameter, where at least one of the interleaver parameters is calculated during generation of the interleaving patterns using a decomposed form that implements modulus (MOD) operations without division.
Dependencies are inferred from the claim text.