Method of and system architecture for high speed dual symmetric full duplex operation of asymmetric digital subscriber lines
First Claim
1. A method of improving asymmetric digital subscriber telephone line modem interfacing amongst subscribers and a central telephone office in which voice and data are simultaneously exchanged and with downloading from the central office to the subscriber at a relatively high data rate and uploading from the subscriber at an asymmetric relatively low rate, that comprises, substantially equalizing the downloading and uploading data rates by providing full duplex high speed and low speed channels and transforming the telephone lines into two virtual lines, each operating as a full duplex line, whereby the resulting swapping of direction of data exchange of the high and low speed channels produces virtual symmetric high speed and low speed data rates for both uploading and downloading.
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Accused Products
Abstract
A novel architecture for high speed dual symmetric full duplex operation of otherwise asymmetrical telephone subscribers--central office modems that provide relatively high data rate downloading from the telephone central office but relatively low data rate uploading from the subscriber stations, whereby, through direction swapping by such duplex operation, equal downloading and uploading can be achieved, or other increasing or grate swapping or variation of the uploading rate capability, as desired. ADSL modems in particular, being reconfigured to provide symmetrical rate downloading and uploading and/or configured direction assignment of rates.
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Citations
16 Claims
- 1. A method of improving asymmetric digital subscriber telephone line modem interfacing amongst subscribers and a central telephone office in which voice and data are simultaneously exchanged and with downloading from the central office to the subscriber at a relatively high data rate and uploading from the subscriber at an asymmetric relatively low rate, that comprises, substantially equalizing the downloading and uploading data rates by providing full duplex high speed and low speed channels and transforming the telephone lines into two virtual lines, each operating as a full duplex line, whereby the resulting swapping of direction of data exchange of the high and low speed channels produces virtual symmetric high speed and low speed data rates for both uploading and downloading.
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4. In a digital subscriber telephone line modem system interfacing amongst subscribers, and a central office and in which voice and data are simultaneously exchanged and with downloading from the central office to the subscribers at a relatively high data rate and uploading from the subscriber at an asymmetric relatively low rate, apparatus for increasing the uploading rate having, in combination, modems having connections for data transmitting and receiving interfacing of the subscribers and the central office comprising a pair of ADSL modules, one module of the pair providing a relatively high speed upload channel and a corresponding relatively low speed download channel, and the other module of the pair providing a relatively low speed upload channel and a relatively high speed download channel;
- means for coupling the data transmitting connection of said one module with the receiving connection of the other module and for coupling the receiving connection of said one module with the transmitting connection of said other module; and
means for duplexing the high and low speed channels to provide virtual symmetric relatively high speed and low speed data operation for both uploading and downloading through the duplexing high and low speed channel direction swapping. - View Dependent Claims (5, 6, 7, 8, 9, 10, 12)
- means for coupling the data transmitting connection of said one module with the receiving connection of the other module and for coupling the receiving connection of said one module with the transmitting connection of said other module; and
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11. In a telephone line modem system interfacing amongst subscribers and a central telephone office and in which information is asymmetrically downloaded from the central office to the subscribers at a relatively high rate and uploaded from the subscriber at an asymmetric relatively low rate, apparatus for increasing the uploading rate having, in combination, modems having connections for information transmitting and receiving and interfacing the subscribers and the central office and comprising a pair of asymmetric modem modules, one module of the pair providing a relatively high speed upload channel and a corresponding relatively low speed download channel, and the other module of the pair providing a relatively low speed upload channel and a relatively high speed download channel;
- means for coupling the transmitting connection of the said one module with the receiving connection of the other module and for coupling the receiving connection of the said one module with the transmitting connection of said other module; and
means for duplexing the high and low speed channels to produce virtual symmetric relatively high speed and low speed operation for both uploading and downloading through the duplexing high and low speed channel direction swapping. - View Dependent Claims (13, 14)
- means for coupling the transmitting connection of the said one module with the receiving connection of the other module and for coupling the receiving connection of the said one module with the transmitting connection of said other module; and
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15. A method of improving asymmetric digital subscriber telephone line modem interfacing amongst subscribers and a central telephone office in which voice and data are simultaneously exchanged along high speed and low speed channels and with downloading in the direction from the central office to the subscriber at a relatively high data rate and uploading in the opposite direction from the subscriber at an asymmetric relatively low rate, that comprises dynamically configuring the direction assignments of the high and low speed channels to achieve, swap, and relatively vary the high and low data rates of uploading and downloading as desired by the user.
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16. In a telephone line modem system interfacing amongst subscribers and a central telephone office(s) and in which information is asymmetrically downloaded in the direction from the central office to the subscribers at a relatively high rate and uploaded in the opposite direction from the subscriber at an asymmetric relatively low rate, apparatus for increasing the uploading rate and, more generally, varying uploading and downloading rates at the desire of the user, said apparatus having, in combination, modems having connections for information transmitting and receiving and interfacing the subscribers and the central office and means for dynamically configuring the direction assignment of the high and low speed channels to achieve, swap, and relatively vary the high and low data rates of uploading and downloading as desired.
Specification