Variable block rate ADSL
AssigneeTexas Instruments Incorporated
InventorArthur John Redfern
Life of this patent
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Abstract
By allowing the block rate to vary, the existing Asymmetric Digital Subscriber Line (ADSL) system is modified to better address extended reach and higher data rates. A method is disclosed for providing improved reach from the ADSL standard by reducing the block rate from the ADSL standard and providing improved data rate for short loops by increasing the block rate from the ADSL standard.
Claims21
A method of providing one of improved reach or data rate characteristics between a service provider transceiver and consumer equipment transceiver comprising the steps of:
- providing the capabilities of each transceiver;
- probing the channel;
- determining a block rate for multicarrier modulation;
- and
- training and operating the transceivers at the said block rate.
A method of providing improved data rate characteristics between a service provider transceiver and consumer equipment transceiver wherein there are hardware resources which are shared by more than one transceiver and there is a maximum number of transceivers sharing said hardware resources which can operate at the same time at an initial block rate comprising the steps of:
- providing the capabilities of each transceiver;
- probing the channel;
- determining a block rate for multicarrier modulation;
- training and operating the transceivers at the said block rate;
- and
- allocating the hardware resources such that for each transceiver in which the block rate is increased by an integer multiple relative to said initial system block rate, the maximum number of transceivers supported by said hardware resources at the initial block rate is reduced by said integer minus one.
A method of providing one of improved reach or data rate characteristics between a service provider transceiver and consumer equipment transceiver comprising the steps of:
- determining block rate for multicarrier modulation for said one of improved reach or data rate characteristics;
- and
- training and operating the transceivers at the said block rate.
Dependencies are inferred from the claim text.