System and Method for Achieving Higher Data Rates in Physical Layer Devices
AssigneeBroadcom Corporation
InventorsWael William Diab, Scott Powell, Yong Kim
Life of this patent
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Abstract
A system and method for achieving higher data rates in physical layer devices. Costs imposed by large data rate increases represented by generational increases in Ethernet standards activities are avoided through physical layer device modifications that enable marginal increases in data bandwidth. Building-block reuse can be promoted through the selective use of clocking rate increase, increase in coding efficiency, and bit reuse.
Claims20
A method for increasing a data rate in a physical layer device, wherein a data transmission rate of X bits/s is produced when transmitting symbols based on a block of L bits that is generated by encoding a block of N data bits with M error correction bits and P parity bits using a first clocking rate, the method comprising:
- receiving a stream of N+Y data bits in a low density parity check encoding module, Y>0;
- generating, by said low density parity check module, a low density parity check encoded data block of L bits, said low density parity check encoded data block of L bits being generated using said received stream of N+Y data bits and M−Z error correction bits, Z>0, and P+X parity bits, X>0;
- and
- transmitting, by said physical layer device, symbols based on said low density parity check encoded data block of L bits using a second clocking rate, wherein said transmission has a data transmission rate greater than X bits/s.
A physical layer device, wherein a data transmission rate of X bits/s is produced when transmitting symbols based on a block of L bits that is generated by encoding a block of N data bits with M error correction bits and P parity bits using a first clocking rate, the physical layer device comprising:
- a low density parity check encoding module that receives a stream of N+Y data bits, Y>0, said low density parity check encoding module being configured to generate a low density parity check encoded data block of L bits, said low density parity check encoded data block of L bits being generated using said received stream of N+Y data bits and M−Z error correction bits, Z>0, and P+X parity bits, X>0;
- and
- a transmitter that is configured to transmit symbols based on said low density parity check encoded data block of L bits using a second clocking rate, wherein said transmission has a data transmission rate greater than X bits/s.
Dependencies are inferred from the claim text.