Loading patent…
AssigneeAgere Systems Inc.
InventorsKameran Azadet, Erich Franz Haratsch
Estimating the term…
A method and apparatus are disclosed for joint equalization and decoding of multilevel codes, such as the MLT-3 code, which are transmitted over dispersive channels. The MLT-3 code is treated as a code generated by a finite-state machine using a trellis having state dependencies between the various states. A super trellis concatenates the MLT-3 trellis with a trellis representation of the channel. Joint equalization and decoding of the received signal can be performed using the super trellis. A sequence detector is disclosed that uses the super trellis or a corresponding reduced-state trellis to perform joint equalization and decoding of the received signal to decode the MLT-3 coded data bits. The sequence detector may be embodied using maximum likelihood sequence estimation that applies the optimum Viterbi algorithm or a reduced complexity sequence estimation method, such as the reduced-state sequence estimation (RSSE) algorithm.
A method for decoding a signal received from a dispersive channel causing intersymbol interference, said signal encoded using the MLT-3 code, said method comprising the steps of:
A receiver for processing a signal received from a dispersive channel, said signal encoded using an MLT-3 code, comprising:
A method for representing an MLT-3 code as a trellis, said MLT-3 code using three signal levels to represent two binary values, said method comprising the steps of:
Dependencies are inferred from the claim text.