Systems and methods for physical layer (“PHY”) concatenation in a multimedia over coax alliance network
View Patent ↗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.
1. A node for use with a network over coaxial cable, the node comprising:
a transmitter configured to transmit a first message, the message comprising a concatenated burst, the concatenated burst comprising:
a preamble;
a first payload; and
a second payload that follows the first payload, the second payload that begins with a cyclic prefix, the cyclic prefix comprising at least a portion of a first symbol of the second payload.
2. The node of claim 1 , further comprising:
a receiver which is configurable to request a second message containing a concatenated burst.
3. The node of claim 1 , wherein the concatenated burst comprises a third payload, the third payload that follows the second payload and begins with a cyclic prefix, the cyclic prefix of the third payload comprising at least a portion of a first symbol of the third payload.
4. The node of claim 3 , wherein the concatenated burst comprises a fourth payload, the fourth payload that follows the third payload and begins with a cyclic prefix, the cyclic prefix of the fourth payload comprising at least a portion of a first symbol of the fourth payload.
5. The node of claim 1 , wherein the preamble is transmitted following an inter-frame gap.
6. The node of claim 1 , wherein a final payload in the burst is transmitted prior to an inter-frame gap.
7. A method for communicating over a coax backbone between a plurality of network modules, the method comprising:
receiving, at a first node, scheduling instructions from a network controller node to schedule, between successive inter-frame gaps, a concatenated burst message; and
transmitting from the first node the concatenated burst message, wherein the concatenated burst message comprises:
a preamble;
a first payload frame; and
a second payload frame, wherein the second payload frame follows the first payload frame and the second payload frame begins with a cyclic prefix comprising the first symbol of the second payload frame.
8. The method of claim 7 further comprising using the first node to receive a request for a message containing a concatenated burst.
9. The method of claim 7 further comprising including a third payload frame in the concatenated burst message, wherein the third payload frame follows the second payload frame and the third payload frame begins with a cyclic prefix comprising the first symbol of the third payload frame.
10. The method of claim 9 further comprising including a fourth payload frame in the concatenated burst, wherein the fourth payload frame follows the third payload frame and the fourth payload frame begins with a cyclic prefix comprising the first symbol of the fourth payload frame.
11. The method of claim 7 further comprising transmitting the preamble immediately following a first inter-frame gap of the successive inter-frame gaps.
12. The method of claim 11 further comprising transmitting the second payload immediately prior to a second inter-frame gap of the successive inter-frame gaps.
13. A method for communicating over a coax backbone between a plurality of network nodes, the method comprising:
providing a first node from among the plurality of network nodes, the first node that is configurable to transmit and receive concatenated payloads;
receiving, at the first node, a concatenated payload, wherein the concatenated payload comprises:
a preamble;
a first payload; and
a second payload wherein the second payload follows the first payload and the second payload begins with a cyclic prefix comprising at least a portion of a first symbol of the second payload.
14. The method of claim 13 , further comprising using the first node to receive a request for a message containing a concatenated payload.
15. The method of claim 13 , further comprising using the first node to transmit a request to send a message containing a concatenated payload.
16. The method of claim 13 , further comprising, prior to the receiving, ceasing transmission from the first node for a time period, wherein the time period includes at least an inter-frame gap.
17. The method of claim 13 , wherein a final payload in the concatenated payload is transmitted prior to a time period of no transmission from the first node, wherein the time period includes at least an inter-frame gap.
18. The method of claim 13 , further comprising:
transmitting, from the first node, a concatenated payload, wherein the concatenated payload comprises:
a preamble;
a first payload; and
a second payload wherein the second payload follows the first payload and the second payload begins with a cyclic prefix comprising at least a portion of a first symbol of the second payload.
19. The method of claim 13 , wherein the transmitting is implemented in response to receiving a concatenated payload transmission instruction from a network controller node.
20. The method of claim 13 , wherein each of the first payload and the second payload includes an integer number of symbols.
21. The method of claim 13 , wherein each of the first payload and the second payload resets a data-scrambler.
22. The method of claim 13 , wherein each of the first payload and the second payload resets a constellation bin-scrambler.