System and method for providing packetized video over an optical network

Patent metadata

Field	Value
Publication number	US-9413487-B2
Application number	US-97407404-A
Country	US
Kind code	B2
Filing date	Oct 27, 2004
Priority date	Jun 1, 2004
Publication date	Aug 9, 2016
Grant date	Aug 9, 2016

Abstract

System and method for distributing IP video are described. One embodiment is a method for distributing IP video comprising transmitting an optical data stream in a designated optical band to an optical network terminal (“ONT”), wherein the optical data stream comprises a broadcast IP video signal provided as a packetized video overlay; converting the optical data stream to an electrical data stream at the ONT; and transmitting the electrical data stream to a subscriber.

First claim

What is claimed is:

1. A method for distributing IP video comprising:
prior to transmitting an optical data stream in a designated optical band, receiving a broadcast IP video signal, combining a broadcast IP video signal with an additional IP video signal comprising locally-derived content different from the broadcast IP video signal that is locally generated, and converting the combined IP video signal to an optical data stream in a designated optical band comprising a single designated wavelength;
transmitting the optical data stream in the designated optical band to an optical network terminal (“ONT”), wherein the optical data stream comprises a broadcast IP video signal provided as a packetized video overlay, wherein the optical data stream is transmitted by an IP video switch operating in a half-duplex mode of operation, and the optical data stream is transmitted in a promiscuous mode without receiving acknowledgements from the ONT;
replacing an Ethernet MAC destination address (DA) of each packet of the broadcast IP video signal transmitted out of an IP video distribution port of the IP video switch with a video channel identification (CH_ID);
receiving Internet voice and data at an optical line terminal (“OLT”);
converting the received Internet voice and data to an additional optical data stream portion in a different optical band; and
combining the additional optical data stream portion into the optical data stream prior to the transmitting the optical data stream to an optical network terminal the ONT;

converting the optical data stream to an electrical data stream at the ONT; and transmitting the electrical data stream to a subscriber.

2. The method of claim 1 wherein the IP video switch is located in a video head end apparatus.

3. The method of claim 1 wherein the transmission of an optical data stream in a designated optical band is performed over a passive optical network (“PON”).

4. The method of claim 1 wherein the additional IP video signal is an interactive video signal.

5. The method of claim 1 further comprising, prior to the transmitting the optical data stream to an ONT, amplifying the optical data stream.

6. The method of claim 1 wherein the transmitting the optical data stream to an ONT further comprises splitting the optical data stream into a plurality of optical data streams each for delivery to an ONT.

7. The method of claim 1 further comprising; prior to transmitting the electrical data stream to a subscriber:
separating and recovering the additional optical data stream portion from the optical data stream;
converting the additional optical data stream portion back to an electrical signal comprising the IP voice and data signals;
converting the IP voice signals into analog voice signals and providing the analog voice signals to a POTS device; and
providing the IP data signals to a data device.

8. A system for distributing IP video comprising:
means for receiving a broadcast IP video signal at a switching device prior to transmitting an optical data stream;
means for combining the broadcast IP video signal with an additional IP video signal comprising locally-derived content different from the broadcast IP video signal that is locally generated into a combined IP video signal;
means for converting the combined IP video signal to the optical data stream in the designated optical band comprising a single designated wavelength;
means for transmitting the optical data stream in the designated optical band to an optical network terminal (“ONT”), the optical data stream comprising a broadcast IP video signal provided as a packetized video overlay, the optical data stream is transmitted by an IP video switch operating in a half-duplex mode of operation, and the optical data stream is transmitted in a promiscuous mode without receiving acknowledgements from the ONT,
means for replacing an Ethernet MAC destination address (DA) of each packet of the broadcast IP video signal transmitted out of an IP video distribution port of the IP video switch with a video channel identification (CH_ID);
means for receiving Internet voice and data at an optical line terminal (“OLT”);
means for converting the received Internet voice and data to an additional optical data stream portion in a different optical band; and
means for combining the additional optical data portion into the optical data stream prior to the transmitting the optical data stream to an optical network terminal ONT;

means for converting the optical data stream to an electrical data stream at the ONT; and means for transmitting the electrical data stream to a subscriber.

9. The system of claim 8 wherein the means for transmitting an optical data stream in a designated optical band comprises an IP video switch that transmits the optical data stream in a promiscuous mode.

10. The system of claim 9 wherein the IP video switch is located in a video head end apparatus.

11. The system of claim 8 wherein the means for transmitting the electrical data stream to a subscriber comprises a passive optical network (“PON”).

12. The system of claim 8 wherein the additional IP video signal is an interactive video signal.

13. The system of claim 8 further comprising means for amplifying the optical data stream prior to transmission thereof to an ONT.

14. The system of claim 13 wherein the means for amplifying the optical data stream comprises an erbium doped fiber amplifier (“EDFA”).

15. The system of claim 8 wherein the means for transmitting the optical data stream to an ONT further comprises means for splitting the optical data stream into a plurality of optical data streams each for delivery to an ONT.

16. The system of claim 8 further comprising:
means for separating and recovering the additional optical data stream portion from the optical data stream;
means for converting the additional optical data stream portion back to an electrical signal comprising the IP voice and data signals;
means for converting the IP voice signals into analog voice signals and providing the analog voice signals to a POTS device; and means for providing the IP data signals to a data device.

17. A system for distributing video, the system comprising:
a video head end connected to receive a broadcast IP video data stream and convert the received data stream from an electrical signal to an optical signal in a first optical band, wherein the video head end comprises an IP video switch operating in a half-duplex mode of operation for transmitting the IP video data stream in a promiscuous mode to an optical network terminal (ONT) without receiving acknowledgements from the ONT, wherein each packet of the broadcast IP video signal transmitted out of an IP video distribution port of the IP video switch comprises a corresponding Ethernet MAC destination address (DA) which is replaced with a video channel identification (CH_ID), and wherein prior to transmitting an optical data stream in the first optical band, the video head end receives a broadcast IP video signal, combines the broadcast IP video signal with an additional IP video signal that is locally generated comprising locally-derived content different from the broadcast IP video signal, and converts the combined IP video signal to an optical data stream in the first optical band comprising a first single designated wavelength; receive Internet voice and data at an optical line terminal (“OLT”); convert the received Internet voice and data to an additional optical data stream portion in a different optical band; and combine the additional optical

Assignees

• Smith Joseph Lee
• Remein Duane Richard
• Ghoddoussi Amir
• Alcatel Lucent

Inventors

• Smith Joseph Lee
• Remein Duane Richard
• Ghoddoussi Amir

Classifications

• H04J14/0252

  Sharing one wavelength for at least a group of ONUs, e.g. for transmissions from-ONU-to-OLT or from-ONU-to-ONU · CPC title

• H04Q11/0067 Primary

  Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring · CPC title

• H04J14/0227

  Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation · CPC title

• H04J14/0247

  Sharing one wavelength for at least a group of ONUs · CPC title

• H04J14/0226

  Fixed carrier allocation, e.g. according to service · CPC title