Integrated power line communications interface for performing communications protocol processing on a plurality of classes of communications data
An integrated power line communications (“PLC”) interface is coupled to a power line communications network and can simultaneously process a plurality of classes of communications data for automatically and dynamically establishing class-specific communications interfaces with communications network appliances or communications device coupled to the PLC network.
1 . An integrated power line communications (“PLC”) interface comprising:
an analog front end (“AFE”) for coupling to a power line communications medium of PLC network and for performing communications signal transmission and reception operations for a plurality of classes of communications data;
a physical communications protocol layer (“PHY”) module coupled to the AFE and a media access controller communications protocol layer (“MAC”) module, wherein the MAC module is further coupled to a stack communications protocol layer module, wherein each of the PHY, MAC and stack layer modules is operable for processing communications data in at least two of the plurality of classes; and
an interface communications protocol layer module for interfacing the stack layer module with a communications protocol layer that is above the stack layer module in a communications protocol hierarchy.
2 . The PLC interface of claim 1 , wherein the classes include at least low, medium and high speed data communications traffic and the interface module performs data routing, network bridging and network translation operations.
3 . The PLC interface of claim 1 , wherein the interface module performs data processing operations for communicatively interconnecting the PLC interface with a communications device or a communications network on a network other than the PLC network.
4 . The PLC interface of claim 1 , wherein each of the PHY, MAC and stack modules includes a designated low speed data communications traffic module and a data communications traffic module selectable for processing medium or high speed data communications traffic.
5 . The PLC interface of claim 2 , wherein the AFE is for performing communications signal transmission and reception operations on time division multiplexed communications signals and each of the PHY, MAC and stack modules is operable for processing communications data carried on time division multiplexed communications signals.
6 . The PLC interface of claim 2 , wherein the AFE is for performing communications signal transmission and reception operations on frequency division multiplexed communications signals and each of the PHY, MAC and stack modules is operable for processing communications data carried on frequency division multiplexed communications signals.
7 . The PLC interface of claim 2 , wherein the AFE performs communications signal transmission operations, and each of the PHY, MAC and stack modules performs processing on communications data, for generating a communications data signal encoded in accordance with a universal signal structure, wherein the universal signal structure includes data blocks corresponding to each of the plurality of classes of communications data, such that communications devices coupled to the PLC network and operating using at least one of the plurality of classes can interpret data communications transmissions from the PLC interface.
8 . The PLC interface of claim 1 , wherein the AFE is selectively operable to perform adaptive filtering and control output power of communications signals including at least two classes of communications data selected from the plurality of classes of communications data.
9 . The PLC interface of claim 1 , wherein the AFE identifies the communications data class of a first communications data packet to be transmitted onto or received from the power line medium and automatically performs communications signal transmission and reception operations corresponding to the identified class, and wherein each of the PHY, MAC and stack modules automatically performs processing operations on the first communications data packet corresponding to the identified class.
10 . The PLC interface of claim 1 , wherein the interface module translates communications data encoded in accordance with a first data communication class into communications data encoded for transmission to a selected network address and based on the class of communications data available for use in transmission on a network path extending to the selected network address.
11 . The PLC interface of claim 1 , wherein the interface module translates a first data communications class into a second data communications class based on information representative of transmission characteristics of network paths of a power line communication network to which the PLC interface is coupled.
12 . The PLC interface of claim 1 , wherein the AFE performs communications signal transmission and reception operations simultaneously on at least two of the plurality of classes of communications data; and
wherein each of the PHY, MAC and stack layer modules simultaneously processes communications data for the least two of the plurality of classes.
13 . The PLC interface of claim 1 , wherein at least one of or a portion of the AFE module, the PHY, MAC and stack modules and the interface module is implemented using a system on chip architecture.