SYSTEMS AND METHODS FOR PHYSICAL LAYER ("PHY") CONCATENATION IN A MOCA NETWORK

• US 20100158021A1
• Filed: 12/14/2009
• Published: 06/24/2010
• Est. Priority Date: 12/22/2008
• Status: Active Grant

• Current Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Kliger, Avraham, Klein, Philippe, Ohana, Yitshak
• Granted Patent: US 8,254,413 B2
• Time in Patent Office: Days
• US Class Current: 370/400
• CPC Class Codes: H04L 12/2801 Broadband local area networks
• CPC Class Codes: H04L 12/2861 Point-to-multipoint connection from the data network to the subscribers
• CPC Class Codes: H04L 12/6418 Hybrid transport
• CPC Class Codes: H04L 27/2602 Signal structure
• CPC Class Codes: H04L 27/2607 Cyclic extensions
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04N 21/43615 Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals home Audio Video Interoperability [HAVI] data switching networks H04L12/2805
• CPC Class Codes: H04N 21/43632 involving a wired protocol, e.g. IEEE 1394 high-speed IEEE 1394 serial bus H04L12/40052

Abstract

Systems and methods for concatenating messages in MoCA devices that are connected via a coax network are provided. One embodiment of a system according to the invention includes a home network having a plurality of nodes. The network is implemented over coaxial cable. The network includes a plurality of networked nodes. A transmitter of at least one of the networked nodes is configurable to transmit a concatenated burst. The concatenated burst includes a preamble, a first payload frame and a second payload frame. The first payload frame and the second payload frame are separated by a cyclic prefix of a first symbol of the second payload frame.

Claims

1. A network over coaxial cable, the network comprising:

a plurality of networked nodes;

wherein a transmitter of at least one of the networked nodes is configured to transmit a message comprising a concatenated burst, said concatenated burst comprising;

a preamble;

a first payload; and

a second payload wherein the first payload and the second payload are separated by a cyclic prefix of a first symbol of the second payload.

2. The network of claim 1 wherein a networked node comprises a receiver which is configurable to request a message containing a concatenated burst.

3. The network of claim 1 wherein the concatenated burst comprises a third payload, and the second and third payloads are separated by a cyclic prefix of a first symbol of the third payload.

4. The network of claim 3 wherein the concatenated burst comprises a fourth payload, and the third and fourth payloads are separated by a cyclic prefix of a first symbol of the fourth payload.

5. The network of claim 1 wherein the preamble is transmitted following an inter-frame gap.

6. The network of claim 1 wherein a final payload in the burst is transmitted prior to an inter-frame gap.

7. In a network having a plurality of network modules, a method for communicating over the coax backbone between the plurality of network modules, the method comprising:

transmitting from a first node a concatenated burst message, wherein the concatenated burst message comprises;

a preamble;

a first payload frame; and

a second payload frame wherein the first payload frame and the second payload frame are separated by the cyclic prefix of the first symbol of the second payload frame; and

receiving the concatenated burst message at a second node.

8. The method of claim 7 further comprising using a networked node configured as a receiver to request a message containing a concatenated burst.

9. The method of claim 7 further comprising including a third payload frame in the concatenated burst, and separating the second and third payload frames by a cyclic prefix of a first symbol of the third payload frame.

10. The method of claim 9 further comprising including a third payload frame and a fourth payload frame in the concatenated burst, and separating the third and fourth payload frames by the cyclic prefix of the first symbol of the fourth payload frame.

11. The method of claim 7 further comprising transmitting the preamble immediately following an inter-frame gap.

12. The method of claim 7 further comprising transmitting the second payload immediately prior to an inter-frame gap.