Process for configuring an xDSL modem and xDSL modem having such a process
First Claim
1. A process for configuring a symmetric xDSL-type modem, comprising:
- detecting a criterion corresponding to an asymmetric operating mode of said modem of an ADSL-type;
wherein detecting such criterion includes obtaining an estimation of a length of a line by measuring transmission time between said modem and another modem through said line; and
in response to said detection, disabling a number of carriers in order to establish the asymmetric operating mode of said modem.
2 Assignments
0 Petitions
Accused Products
Abstract
Process for configuring an xDSL-type symmetric modem, comprising the following: detecting a predetermined criterion corresponding to an asymmetric operating mode, in particular an ADSL-type; and in response to said detection, disabling a number of carriers in order to establish an asymmetric operating mode. More specifically, the modem is VDSL-type, operating with up to 4096 carriers and being reconfigurable in ADSL mode with a number of carriers reduced to 256. In one case, said criterion is the detection of signals as defined in recommendation G.994.1 of the International Telecommunications Union of (ITU). Alternatively, mode switching could be controlled based on measurement of the size of the line.
12 Citations
30 Claims
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1. A process for configuring a symmetric xDSL-type modem, comprising:
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detecting a criterion corresponding to an asymmetric operating mode of said modem of an ADSL-type;
wherein detecting such criterion includes obtaining an estimation of a length of a line by measuring transmission time between said modem and another modem through said line; andin response to said detection, disabling a number of carriers in order to establish the asymmetric operating mode of said modem. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An xDSL-type modem allowing symmetric operation in DMT mode based on a number of carriers, the modem comprising:
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means for detecting a criterion for operation in an asymmetric mode of an ADSL-type mode, wherein said means for detecting such criterion includes means for obtaining an estimation of a length of a line by measuring transmission time between said modem and another modem through said line; and means for controlling, based on said detection of said criterion, disablement of a number of carriers in order to establish the asymmetric operating mode. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method, comprising:
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configuring a modem for interoperability between first and second xDSL operating modes; detecting a criterion associated with the first operating mode, wherein detecting such criterion includes obtaining an estimation of a length of a line by measuring transmission time between said modem and another modem through said line; and in response to the detected criterion, disabling a number of carriers associated with the second operating mode to establish the first operating mode. - View Dependent Claims (19, 20, 21, 22)
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23. An apparatus, comprising:
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a modem to interoperate between first and second xDSL modes; a first component of the modem to detect a criterion associated with the first mode, wherein detection of such criterion includes an estimation of a length of a line by measurement of transmission time between said modem and another modem through said line; and a second component of the modem to disable a number of carriers associated with the second mode to establish the first mode, in response to the criterion detected by the first component. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification