| 摘要 |
A system receives four-bit symbols that correspond to traffic associated with a three-bit phase modulation scheme and are encoded based on a four-bit phase modulation scheme. The system determines values with which to perform equalization that enable the four-bit symbols to be restored to a condition that existed prior to being transmitted to the system. The system performs, using the values, equalization on a four-bit symbol that includes at least a first pair of bits associated with a first polarization, and performs, after completing the equalization, another equalization on another four-bit symbol that includes at least a second pair of bits associated with a second polarization. The system identifies a three-bit symbol, of a set of three-bit symbols associated with the three-bit phase modulation scheme, based on the equalized first pair of bits and the equalized second pair of bits, generates the three-bit symbol, and outputs the three-bit symbol. |
| 主权项 |
1. A method comprising:
receiving, by a receiver device, traffic associated with a three-bit phase modulation scheme, the traffic including a plurality of four-bit symbols, the plurality of four-bit symbols being encoded using a four-bit phase modulation scheme; obtaining, by the receiver device and from the traffic, a first symbol of the plurality of four-bit symbols, the first symbol including at least a first pair of bits, the first pair of bits corresponding to a first polarization; performing, by the receiver device, a first equalization on the first pair of bits; obtaining, by the receiver device and from the traffic, a second symbol of the plurality of four-bit symbols based on performing the first equalization, the second symbol including at least a second pair of bits, the second pair of bits corresponding to a second polarization and being delayed, for a time period, relative to the first pair of bits; performing, by the receiver device and after at least the time period from when the first equalization is initiated, a second equalization on the second pair of bits, the second equalization restoring the second pair of bits to a condition that existed before the second pair of bits were transmitted to the receiver device; identifying, by the receiver device, a three-bit symbol that corresponds to the equalized first pair of bits and the equalized second pair of bits, the three-bit symbol corresponding to the three-bit phase modulation scheme; and outputting, by the receiver device, the three-bit symbol. |
