Headend apparatus for data transmission over cable access network
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Accused Products
Abstract
The present invention relates to a server used to transmit Ethernet data signals from an Ethernet network to multiple cable TV network clients or receive Ethernet data signals from the multiple cable TV network clients, the server comprising multiple APs (access points), wherein the APs synchronously start a downlink transmission or an uplink transmission, and wherein during the downlink transmission the APs convert the Ethernet data signals into encoded and modulated RF signals and transmit the encoded and modulated RF signals to the multiple cable TV network clients, and during the uplink transmission the encoded and modulated RF signals from the cable TV network clients and convert the encoded and modulated RF signals into the Ethernet data signals.
23 Citations
53 Claims
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1-40. -40. (canceled)
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41. Method in a head end device for transmitting Ethernet data signals from an Ethernet network to multiple cable TV network clients or for receiving Ethernet data signals from the multiple cable TV network clients, the head end device comprising multiple access points for transmitting and receiving on respective channels, said method comprising the steps of:
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synchronizing the downlink transmissions of said multiple access points; converting Ethernet data signals into encoded and modulated RF signals and transmitting the encoded and modulated RF signals to the multiple cable TV network clients; receiving the encoded and modulated RF signals from the cable TV network clients; and converting the encoded and modulated RF signals into Ethernet data signals. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49)
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50. Method for receiving encoded and modulated RF signals from multiple access points in a cable TV network or for transmitting encoded and modulated RF signals to an Ethernet network via the cable TV network, the method being carried out by a client device, the method comprising steps of:
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receiving synchronization information from the multiple access points indicating synchronous start of downlink transmission or uplink transmission; during the downlink transmission the modem, translating the encoded and modulated RF signals from the multiple access points into Ethernet data signals; and during the uplink transmission the modem translating the Ethernet data signals into the encoded and modulated RF signals. - View Dependent Claims (51, 52, 53)
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Specification