Point-to-multipoint high data rate delivery systems from optical node in HFC systems over existing and advanced coaxial network
View Patent ↗Methods and apparatus are described for transmitting and receiving data. A method includes a process of transferring data over a coaxial network at a bandwidth above 1000 MHz, wherein the process of transferring data transfers the data between an optical node and a plurality of cable modems of a hybrid fiber-coaxial cable network. An apparatus includes a data transfer system which sends and receives data over a coaxial network at a bandwidth above 1000 MHz, wherein the data transfer system is located at an optical node of a hybrid fiber-coaxial cable network.
1. An apparatus comprising:
a data transfer system which sends and receives data over a coaxial network including
a wavelength division mux/demux located between a headend and a hybrid fiber cable module:
a plurality of transceivers coupled to the wavelength division mux/demux;
a member selected from the group consisting of a router and a media access controller coupled to the plurality of transceivers;
an orthogonal frequency division multiplexing transmitter coupled to the member, the orthogonal frequency division multiplexing transmitter having a forward path component with forward error correction, modulation and upconversion;
an orthogonal frequency division multiplexing receiver coupled to the member, the orthogonal frequency division multiplexing receiver having a return path component with a burst receiver and a demodulator; and
a filter-amplifier unit coupled to the orthogonal frequency division multiplexing transmitter and the orthogonal frequency division multiplexing receiver, the filter-amplifier unit located between the hybrid fiber cable module and at least one customer premises equipment.
2. The apparatus of claim 1 , wherein the data transfer system is located at an optical node of a hybrid fiber-coaxial network.
3. A method comprising a process of transferring data over a coaxial network including:
wavelength division demultiplexing a plurality of downstream signals using a wavelength division mux/demux located between a headend and a hybrid fiber cable module;
transmitting the plurality of downstream signals using a plurality of transceivers coupled to the wavelength division mux/demux;
directing the plurality of downstream signals using a member selected from the group consisting of a router and a media access controller coupled to the plurality of transceivers;
transmitting the plurality of downstream signals including forward error correction, modulation and upconversion using an orthogonal frequency division multiplexing transmitter coupled to the member;
receiving data including downconversion and demodulation using an orthogonal frequency division multiplexing receiver coupled to the member; and
filtering and amplifying the plurality of downstream signals using a filter-amplifier unit coupled to the orthogonal frequency division multiplexing transmitter, the filter-amplifier unit located between the hybrid fiber cable module and at least one customer premises equipment.
4. The method of claim 3 , wherein transferring data includes:
receiving a plurality of upstream signals using an orthogonal frequency division multiplexing receiver;
directing the plurality of upstream signals using the member;
receiving the plurality of upstream signals using the plurality of transceivers; and
wavelength division multiplexing the plurality of upstream signals using the wavelength division mux/demux.
5. The method of claim 3 , wherein the process of transferring data transfers the data between an optical node and a plurality of cable modems of a hybrid fiber-coaxial cable network.