A system and method for bandwidth management by controlling the bit rate of a signal stream in real time according to available link bandwidth. Applications include multiple-channel video data streams over a limited-bandwidth link such as a Digital Subscriber Line. A video signal is transrated at the head end to multiple streams having different bit rates, by a multirating device which sends the multiple streams over a network, along with metadata containing information about the data structure and parameters of the streams. At the network access edge, a demultirating device uses the metadata to select the stream with the highest video quality whose bit rate does not exceed the available bandwidth of the end-user's access link. This scheme provides multiple unicast signals to different end-users in place of a single multicast signal, supports multiple high-definition channels over a limited bandwidth link, and is compatible with standard encryption methods.

A system and method for bandwidth management by controlling the bit rate of a signal stream in real time according to available link bandwidth. Applications include multiple-channel video data streams over a limited-bandwidth link such as a Digital Subscriber Line. A video signal is transrated at the head end to multiple streams having different bit rates, by a multirating device which sends the multiple streams over a network, along with metadata containing information about the data structure and parameters of the streams. At the network access edge, a demultirating device uses the metadata to select the stream with the highest video quality whose bit rate does not exceed the available bandwidth of the end-user's access link. This scheme provides multiple unicast signals to different end-users in place of a single multicast signal, supports multiple high-definition channels over a limited bandwidth link, and is compatible with standard encryption methods.

A system and method for bandwidth management by controlling the bit rate of a signal stream in real time according to available link bandwidth. Applications include multiple-channel video data streams over a limited-bandwidth link such as a Digital Subscriber Line. A video signal is transrated at the head end to multiple streams having different bit rates, by a multirating device which sends the multiple streams over a network, along with metadata containing information about the data structure and parameters of the streams. At the network access edge, a demultirating device uses the metadata to select the stream with the highest video quality whose bit rate does not exceed the available bandwidth of the end-user's access link. This scheme provides multiple unicast signals to different end-users in place of a single multicast signal, supports multiple high-definition channels over a limited bandwidth link, and is compatible with standard encryption methods.

A method of generating and handling of Digital Subscriber Line (DSL) connection profiles includes: collecting, each time a service is requested by a user of a DSL-connection, individual service-based-data, wherein the individual service-based-data comprise the start time and end time of use of the requested service and a transmit spectrum routed via the DSL-connection during the use of the requested service; analyzing the collected individual service-based-data and based thereon assigning to the analyzed collected individual service-based-data a current individual DSL-connection profile comprising individual repetition times and an individual mean transmit data rate; comparing the current individual DSL-connection profile with an individual DSL-connection profile stored in an operations scheduling memory; and based on the comparing, updating an already stored individual DSL-connection profile based on the current individual DSL-connection profile or storing the current individual DSL-connection profile as a further individual DSL-connection profile in the operations scheduling memory.

The present disclosure provides a network architecture in which the modem in a hybrid metallic-optical fiber access network is moved from the customer premises to the distribution point. Multiple copper pairs can be used to transmit phantom modes over the copper pairs to the distribution point. Alternatively, or in addition, multiple data signals can be transmitted to a single customer premises with the modem collating the multiple data signals at the distribution point.

A system and method for bandwidth management by controlling the bit rate of a signal stream in real time according to available link bandwidth. Applications include multiple-channel video data streams over a limited-bandwidth link such as a Digital Subscriber Line. A video signal is transrated at the head end to multiple streams having different bit rates, by a multirating device which sends the multiple streams over a network, along with metadata containing information about the data structure and parameters of the streams. At the network access edge, a demultirating device uses the metadata to select the stream with the highest video quality whose bit rate does not exceed the available bandwidth of the end-user's access link. This scheme provides multiple unicast signals to different end-users in place of a single multicast signal, supports multiple high-definition channels over a limited bandwidth link, and is compatible with standard encryption methods.

A profile optimizing method is provided for a transmission of active subcarriers over a channel to user devices. The method includes steps of (i) obtaining a symbol mapping architecture for the set of profiles, (ii) calculating, from the symbol mapping architecture, a plurality of mapping orders for the set of profiles different from the logical order, (iii) determining, from the calculated plurality of mapping orders, a particular mapping order having a higher spectral efficiency than the logical order, (iv) reordering the respective codewords of the set of profiles to correspond to the particular mapping order, (v) re-mapping the symbol mapping architecture to a number of symbols corresponding to the reordered codewords, and (vi) transmitting the symbols to the population of user devices. The symbol mapping architecture includes a codeword for each profile of the set of profiles, and maps the codewords to a different number by logical order.

The present disclosure provides a network architecture in which the modem in a hybrid metallic-optical fiber access network is moved from the customer premises to the distribution point. Multiple copper pairs can be used to transmit phantom modes over the copper pairs to the distribution point. Alternatively, or in addition, multiple data signals can be transmitted to a single customer premises with the modem collating the multiple data signals at the distribution point.

A method for configurating a transmission mode to provide an Internet service to a customer-premises equipment by an transmission mode configurating apparatus in an access network structure is provided. At least one network management equipment and at least one customer-premises equipment are connected through a bundle of cables including a plurality of transmission lines. The method includes determining the number of transmission lines connected to the customer-premises equipment; determining at least one of available transmission mode to provide depending on the number of transmission lines; if a plurality of available transmission modes are determined, calculating a transmission performance in each of the available transmission modes; and selecting the transmission mode with the highest performance among the plurality of the available transmission modes.

A system and method for bandwidth management by controlling the bit rate of a signal stream in real time according to available link bandwidth. Applications include multiple-channel video data streams over a limited-bandwidth link such as a Digital Subscriber Line. A video signal is transrated at the head end to multiple streams having different bit rates, by a multirating device which sends the multiple streams over a network, along with metadata containing information about the data structure and parameters of the streams. At the network access edge, a demultirating device uses the metadata to select the stream with the highest video quality whose bit rate does not exceed the available bandwidth of the end-user's access link. This scheme provides multiple unicast signals to different end-users in place of a single multicast signal, supports multiple high-definition channels over a limited bandwidth link, and is compatible with standard encryption methods.