Patent · US Active

Orthogonal frequency division multiple access (OFDMA) based passive optical network (PON) architecture and its extension to long distance

US8000604B2 · kind B2 · utility

7Cited by

5References

14Claims

0Family size

Assignees

NEC Laboratories America, Inc. · US
NEC CORPORATION · JP

Inventors

Dayou Qian · Cranbury, US
Junqiang Hu · Davis, US
Jianjun Yu · Princeton, US
Philip Nan Ji · Cranbury, US
Lei Xu · Beijing, CN
Ting Wang · Plainsboro, US
Milorad Cvijetic · Herndon, US
Toshihiko Kusano · Tokyo, JP

Key dates

Filing date	Feb 29, 2008
Grant date	Aug 16, 2011
Priority date	—
Expiry date	Mar 1, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04L5/0007
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A passive optical network (PON) device, system and method include an optical line terminal (OLT) receiver configured to receive multiple signals at different wavelengths simultaneously and enable multiple transmitters to operate at the same time during one upstream time slot. The optical line terminal employs Orthogonal Frequency Division Multiple Access (OFDMA) to transparently support a plurality of applications and enable dynamic bandwidth allocation among these applications where the bandwidth is allocated in two dimensional frequency and time space.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.