US 12,009,918 B2 · Data processing method and device

Abstract

A data processing method and a device, the method including determining, by an optical network unit, in a received data stream, after the optical network unit enters a pre-synchronization state, a position of a forward error correction (FEC) codeword boundary in the data stream based on a position of a physical synchronization sequence (Psync) field, performing an FEC codeword decoding check, where the Psync field is a field that matches a preset Psync, in the data stream, and entering, by the optical network unit, a synchronization state in response to an FEC codeword among N consecutive FEC codewords in the data stream passing the decoding check, where N is an integer greater than or equal to 1.

Claims20

Dependent claims

A data processing method, comprising:

entering, by an optical network unit, a pre-synchronization state in response to detecting, by the optical network unit, a physical synchronization sequence (Psync) field and a valid superframe counter (SFC) structure in a received data stream;
determining, by the optical network unit, in the received data stream, a position of a forward error correction (FEC) codeword boundary in the data stream based on a position of the Psync field;
performing an FEC codeword decoding check, wherein the Psync field is a field that matches a preset Psync, in the data stream;
and
entering, by the optical network unit, a synchronization state in response to an FEC codeword in the data stream passing the decoding check.

2 more elements

An optical network unit, comprising:

a processor;
and
a non-transitory computer readable medium storing a computer program for execution by the processor, the computer program including instructions to:
enter a pre-synchronization state in response to detecting a physical synchronization sequence (Psync) field and a valid superframe counter (SFC) structure in a received data stream;
determine, in the data stream, a position of a forward error correction (FEC) codeword boundary in the data stream based on a position of the Psync field;
perform an FEC codeword decoding check, wherein the Psync field is a field that matches a preset Psync, in the data stream;
and
enter a synchronization state in response to an FEC codeword in the data stream passing the decoding check.

5 more elements

Dependencies are inferred from the claim text.

Data processing method and device

Life of this patent

Data processing method and device

Life of this patent

Abstract

Claims20