A battery management system comprises a first battery cell controller; a second battery cell controller, the first battery cell controller and the second battery cell controller each monitoring a plurality of battery cells; and a galvanically isolated transmission line providing a point-to-point signal transmission path between the first battery cell controller and the second battery cell controller. At least one of the first battery cell controller or the second battery cell controller includes at least one encoding/decoding circuit for encoding data for transmission as a serial data stream along the signal transmission path in compliance with a multi-level encoding technique, including modulating the serial data stream over at least three discrete signal levels at a predetermined and fixed data pulse frequency, encoding a plurality of data nibbles of the serial data stream into a data packet, the data packet including a plurality of symbols constructed and arranged with at least four consecutive chips per symbol, wherein the at least four consecutive chips per symbol of the data packet includes a DC balanced line code in each of the symbols.

A battery management system comprises a first battery cell controller; a second battery cell controller, the first battery cell controller and the second battery cell controller each monitoring a plurality of battery cells; and a galvanically isolated transmission line providing a point-to-point signal transmission path between the first battery cell controller and the second battery cell controller. At least one of the first battery cell controller or the second battery cell controller includes at least one encoding/decoding circuit for encoding data for transmission as a serial data stream along the signal transmission path in compliance with a multi-level encoding technique, including modulating the serial data stream over at least three discrete signal levels at a predetermined and fixed data pulse frequency, encoding a plurality of data nibbles of the serial data stream into a data packet, the data packet including a plurality of symbols constructed and arranged with at least four consecutive chips per symbol, wherein the at least four consecutive chips per symbol of the data packet includes a DC balanced line code in each of the symbols.

Methods are described allowing a vector signaling code to encode multi-level data without the significant alphabet size increase known to cause symbol dynamic range compression and thus increased noise susceptibility. By intentionally restricting the number of codewords used, good pin efficiency may be maintained along with improved system signal-to-noise ratio.

Methods are described allowing a vector signaling code to encode multi-level data without the significant alphabet size increase known to cause symbol dynamic range compression and thus increased noise susceptibility. By intentionally restricting the number of codewords used, good pin efficiency may be maintained along with improved system signal-to-noise ratio.

A battery management system comprises a first battery cell controller; a second battery cell controller, the first battery cell controller and the second battery cell controller each monitoring a plurality of battery cells; and a galvanically isolated transmission line providing a point-to-point signal transmission path between the first battery cell controller and the second battery cell controller. At least one of the first battery cell controller or the second battery cell controller includes at least one encoding/decoding circuit for encoding data for transmission as a serial data stream along the signal transmission path in compliance with a multi-level encoding technique, including modulating the serial data stream over at least three discrete signal levels at a predetermined and fixed data pulse frequency, encoding a plurality of data nibbles of the serial data stream into a data packet, the data packet including a plurality of symbols constructed and arranged with at least four consecutive chips per symbol, wherein the at least four consecutive chips per symbol of the data packet includes a DC balanced line code in each of the symbols.

A battery management system comprises a first battery cell controller; a second battery cell controller, the first battery cell controller and the second battery cell controller each monitoring a plurality of battery cells; and a galvanically isolated transmission line providing a point-to-point signal transmission path between the first battery cell controller and the second battery cell controller. At least one of the first battery cell controller or the second battery cell controller includes at least one encoding/decoding circuit for encoding data for transmission as a serial data stream along the signal transmission path in compliance with a multi-level encoding technique, including modulating the serial data stream over at least three discrete signal levels at a predetermined and fixed data pulse frequency, encoding a plurality of data nibbles of the serial data stream into a data packet, the data packet including a plurality of symbols constructed and arranged with at least four consecutive chips per symbol, wherein the at least four consecutive chips per symbol of the data packet includes a DC balanced line code in each of the symbols.

A method includes receiving multiple bits to be transmitted. The method also includes applying a first binary alphabet polar code to a first subset of the multiple bits to generate first encoded bits. The first encoded bits are associated with a first bit level of a multilevel coding scheme. The method further includes generating one or more symbols using the first encoded bits and bits associated with a second bit level of the multilevel coding scheme. The first binary alphabet polar code is associated with a first coding rate. In addition, the method could include applying a second binary alphabet polar code to a second subset of the multiple bits to generate second encoded bits. The second encoded bits are associated with the second bit level. The second binary alphabet polar code is associated with a second coding rate such that the bit levels have substantially equal error rates.

A method includes receiving multiple bits to be transmitted. The method also includes applying a first binary alphabet polar code to a first subset of the multiple bits to generate first encoded bits. The first encoded bits are associated with a first bit level of a multilevel coding scheme. The method further includes generating one or more symbols using the first encoded bits and bits associated with a second bit level of the multilevel coding scheme. The first binary alphabet polar code is associated with a first coding rate. In addition, the method could include applying a second binary alphabet polar code to a second subset of the multiple bits to generate second encoded bits. The second encoded bits are associated with the second bit level. The second binary alphabet polar code is associated with a second coding rate such that the bit levels have substantially equal error rates.

A method includes receiving multiple bits to be transmitted. The method also includes applying a first binary alphabet polar code to a first subset of the multiple bits to generate first encoded bits. The first encoded bits are associated with a first bit level of a multilevel coding scheme. The method further includes generating one or more symbols using the first encoded bits and bits associated with a second bit level of the multilevel coding scheme. The first binary alphabet polar code is associated with a first coding rate. In addition, the method could include applying a second binary alphabet polar code to a second subset of the multiple bits to generate second encoded bits. The second encoded bits are associated with the second bit level. The second binary alphabet polar code is associated with a second coding rate such that the bit levels have substantially equal error rates.

A method includes receiving multiple bits to be transmitted. The method also includes applying a first binary alphabet polar code to a first subset of the multiple bits to generate first encoded bits. The first encoded bits are associated with a first bit level of a multilevel coding scheme. The method further includes generating one or more symbols using the first encoded bits and bits associated with a second bit level of the multilevel coding scheme. The first binary alphabet polar code is associated with a first coding rate. In addition, the method could include applying a second binary alphabet polar code to a second subset of the multiple bits to generate second encoded bits. The second encoded bits are associated with the second bit level. The second binary alphabet polar code is associated with a second coding rate such that the bit levels have substantially equal error rates.