Wavelength Indication in Multiple-Wavelength Passive Optical Networks
AssigneeFuturewei Technologies, Inc.
InventorsYuanqiu LUO, Frank J. Effenberger
Life of this patent
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Abstract
A method and apparatus for communications in a passive optical network (PON) system are provided. An optical line terminal (OLT) generates a PON downstream Physical Layer (PHY) frame comprising a downstream physical synchronization block (PSBd) that comprises a wavelength identification (ID) of at least one downstream wavelength of the plurality of downstream wavelengths. The OLT sends the PON PHY frame comprising the wavelength ID in the PSBd to ONU for confirming the at least one downstream wavelength.
Claims18
A method implemented at an optical network unit (ONU) for communications in a passive optical network (PON) system that supports a plurality of downstream wavelengths, comprising:
- receiving, by the ONU, a PON downstream Physical Layer (PHY) frame comprising a downstream physical synchronization block (PSBd) and a PHY frame payload, wherein the PSBd comprises a wavelength identification (ID) of at least one downstream wavelength of the plurality of downstream wavelengths;
- confirming, by the ONU, the at least one downstream wavelength in accordance with the wavelength ID in the PSBd.
An optical network unit (ONU) for communications in a passive optical network (PON) system that supports a plurality of downstream wavelengths, comprising:
- a receiver that receives a PON downstream Physical Layer (PHY) frame comprising a downstream physical synchronization block (PSBd) and a PHY frame payload, wherein the PSBd comprises a wavelength identification (ID) of at least one downstream wavelength of the plurality of downstream wavelengths;
- a processor that is communicatively coupled to the receiver and confirms the at least one downstream wavelength in accordance with the wavelength ID in the PSBd.
A method implemented at an optical line terminal (OLT) for communications in a passive optical network (PON) system that supports a plurality of downstream wavelengths, comprising:
- generating, by the OLT, a PON downstream Physical Layer (PHY) frame comprising a downstream physical synchronization block (PSBd) and a PHY frame payload, wherein the PSBd comprises a wavelength identification (ID) of at least one downstream wavelength of the plurality of downstream wavelengths;
- sending, by the OLT, the PON downstream PHY frame comprising the wavelength ID in the PSBd to one or more optical network units (ONUs) communicatively coupled to the OLT.
An optical line terminal (OLT) apparatus for communications in a passive optical network (PON) system that supports a plurality of downstream wavelengths, comprising:
- a processor that generates a PON downstream Physical Layer (PHY) frame comprising a downstream physical synchronization block (PSBd) and a PHY frame payload, wherein the PSBd comprises a wavelength identification (ID) of at least one downstream wavelength of the plurality of downstream wavelengths;
- a transmitter that is communicatively coupled to the processor and sends the PON downstream PHY frame comprising the wavelength ID in the PSBd to one or more optical network units (ONUs) communicatively coupled to the OLT apparatus.
Dependencies are inferred from the claim text.