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AssigneeAgere Systems Inc.
InventorsKameran Azadet, Erich F. Haratsch
Estimating the term…
Techniques are provided for performing joint equalization and decoding of multidimensional codes transmitted over multiple symbol durations. A reduced state sequence estimation (RSSE) decoder is provided for a multidimensional code. A multidimensional code symbol comprises a number of symbol components of lower dimensionality. The RSSE decodes comprises at least one branch metric unit that calculates branch metrics for a received signal based on intersymbol interference and intrasymbol interference estimates, the at least one branch metric unit compensating for intrasymbol interference caused by symbol components within a current multidimensional code symbol; and a decision feedback unit that processes survivor symbols to calculate the intersymbol interference estimates for different code states of the multidimensional code and channels used to transmit the multidimensional code.
A reduced state sequence estimation decoder for a multidimensional code, wherein a multidimensional code symbol comprises a number of symbol components of lower dimensionality, comprising:
The reduced state sequence estimation decoder of claim I, wherein said at least one branch metric unit is further operative to calculate a metric for an initial symbol component using survivor symbols from a corresponding state to account for intersymbol interference, wherein said metric is used for the calculation of a branch metric.
A method for processing a multidimensional code, wherein a multidimensional code symbol comprises a number of symbol components of lower dimensionality, comprising:
Dependencies are inferred from the claim text.