Method for extended rate/range communication over a communication network
View Patent ↗A technique for communicating multimedia data between nodes over coaxial cable, wherein the nodes are connected via a coaxial cable network, is disclosed. In an embodiment, the technique involves establishing a primary channel for communicating between first and second nodes of the coaxial cable network, establishing a secondary channel for communicating between the first and second nodes of the coaxial cable network, wherein the primary and secondary channels are in different frequency bands and wherein the primary channel is used for communicating media access control frames, and communicating a time series of data frames between the first and second nodes using both the primary channel and the secondary channel.
1. A method for of communicating multimedia data between nodes over coaxial cable, wherein the nodes are connected via a coaxial cable network, the method comprising:
establishing a primary channel for communicating between first and second nodes of the coaxial cable network;
establishing a secondary channel for communicating between the first and second nodes of the coaxial cable network;
wherein the primary and secondary channels are in different frequency bands and wherein only the primary channel is used for communicating media access control information including beacons and MAP-frames;
communicating a time series of data frames between the first and second nodes using both the primary channel and the secondary channel;
adjusting the transmission power as a step towards optimizing determined transmission parameters used on the secondary channels; and
concatenating of a power adjustment factor of the secondary channel to a power control factor of the primary channel, said concatenated sum of the power adjustment factor and the power control factor being transmitted on the primary channel.
2. The method of claim 1 wherein establishing a secondary channel comprises establishing a plurality of secondary channels between the first and second nodes of the coaxial cable network, wherein the primary and the plurality of secondary channels are in different frequency bands and wherein the primary channel is used for communicating media access control frames.
3. The method of claim 1 further comprising marking the established secondary channel in a list of unusable channels with the purpose of signaling nodes to avoid transmission on unusable channels.
4. The method of claim 1 further comprising signaling a node's capability to use secondary channels.
5. The method of claim 1 further comprising utilizing a set of common secondary channels when communicating between the first and second nodes.
6. The method of claim 1 further comprising broadcasting media access control information on the primary channel.
7. The method of claim 1 further comprising determining transmission parameters for use on the secondary channel.
8. The method of claim 1 further comprising receiving channel sounding packets, processing the channel sounding packets and transmitting a response via the primary channel.
9. The method of claim 1 further comprising maintaining equal time occupancy on the primary and secondary channels.
10. The method of claim 1 further comprising splitting a payload to occupy a minimum number of transmission symbols to transmit the data across both the primary and secondary channels.
11. The method of claim 1 further comprising replicating a payload on both the primary and the secondary channels.
12. The method of claim 11 further comprising repeating the payload by a factor prior to splitting payload across the primary and secondary channels.
13. The method of claim 1 further comprising reducing the constellation order in transmissions between the first and second nodes.
14. The method of claim 1 further comprising preventing a legacy node from accessing a secondary channel by marking the secondary channel as an unusable channel in its list of unusable channels.
15. The method of claim 1 further comprising communicating a list of unusable channels to a network controller and having the network controller periodically broadcast a set of all unusable channels as told to it by nodes requesting the network controller access to the network, with legacy nodes receiving the broadcast of the unusable channels from the network to avoid accessing any unusable channel.
16. The method of claim 1 further comprising performing open-loop transmit power control on the secondary channel as a step towards determining transmission parameters to be used.
17. The method of claim 1 further comprising splitting data between both the primary and secondary channels.
18. The method of claim 17 further comprising utilization by the transmission-symbols of both primary and secondary channels in equal guard bands.
19. The method of claim 17 further comprising utilizing the same preamble type by the transmission waveforms of both primary and secondary channels.
20. The method of claim 17 further comprising utilizing an equal number of transmission symbols by both the primary and secondary channels.
21. The method of claim 1 further comprising signaling a transmission parameter set, a modulation type and a transmission time computed as a function of the transmission parameter set, the modulation type and the transmission time, to a network controller in order to request a transmission opportunity for a frame.
22. The method of claim 1 further comprising receiving a payload via a receiving operation, wherein the receiving operation comprises determining the number of transmission symbols to receive on the primary and secondary channels from a duration of the receiving operation based on schedule information received on the primary channel.
23. The method of claim 1 wherein establishing a secondary channel comprises establishing a plurality of secondary channels between the first and second nodes of the coaxial cable network, wherein the primary and the plurality of secondary channels are in different frequency bands and wherein the primary channel is used for communicating media access control frames.
24. The method of claim 1 further comprising marking the established secondary channel in a list of unusable channels with the purpose of signaling nodes to avoid transmission on unusable channels.
25. The method of claim 1 further comprising signaling a node's capability to use secondary channels.
26. The method of claim 1 further comprising utilizing a set of common secondary channels when communicating between the first and second nodes.
27. The method of claim 1 further comprising broadcasting media access control information on the primary channel.
28. The method of claim 1 further comprising determining transmission parameters for use on the secondary channel.
29. The method of claim 1 further comprising receiving channel sounding packets, processing the channel sounding packets and transmitting a response via the primary channel.
30. The method of claim 1 further comprising maintaining equal time occupancy on the primary and secondary channels.
31. The method of claim 1 further comprising splitting a payload to occupy a minimum number of transmission symbols across both the primary and secondary channels required to transmit the data.
32. The method of claim 1 wherein the secondary channel is signaled as a taboo channel to prevent nodes from attempting to set up a network on the secondary channel.
33. A method of communicating multimedia data between nodes over coaxial cable, wherein the nodes are connected via a coaxial cable network, the method comprising:
establishing a primary channel for communicating between first and second nodes of the coaxial cable network;
establishing a secondary channel for communicating between the first and second nodes of the coaxial cable network;
wherein the primary and secondary channels are in different frequency bands and wherein only the primary channel is used for communicating media access control information including beacons and MAP-frames;
communicating a time series of data frames between the first and second nodes using both the primary channel and the secondary channel;
characterizing the secondary channel as a step towards determining transmission parameters; and
transmitting probe frames on the secondary channel, based on the schedule applicable to the primary channel as received on the primary channel; and nodes receiving the probe frames responding with an appropriate probe response, a response of the secondary channels being appended to a response of the primary channel to create a concatenated response, said concatenated response being transmitted on the primary channel.