Passive optical network employing multi-carrier code...

Details Passive optical network employing multi-carrier code... Passive optical network employing multi-carrier code...

2007-09-18

2007-09-18

Pascal, Leslie (Department: 2613)

Optical communications

Multiplex

Code division multiplexing

C398S067000

Reexamination Certificate

active

10770370

ABSTRACT:
A passive optical network (PON) for providing a large amount of data at high speed to subscribers is provided. In particular, a PON employing a multi-carrier CDMA in which a CDMA method is applied for an upstream signal is provided. The PON employing a multi-carrier CDMA includes: optical network terminals (ONTs) for transmitting CDMA-based data using multiple carriers to an optical line terminal (OLT) and for receiving Ethernet-based data transmitted from the OLT; the OLT for transforming CDMA-based data received from the ONT into Ethernet-based data, for transmitting the Ethernet-based data to a higher network, and for transmitting Ethernet-based date to the ONTs; and an optical coupler for coupling CDMA-based optical signals transmitted from the ONTs, for transmitting the coupled optical signal to the OLT, and for distributing an Ethernet-based optical signal transmitted from the OLT to the ONTs.

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