US6385203B2
Expired / Lapsed
US
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Communication server apparatus and method
Assignee: Cisco Technology Inc
•
Filing: 1998-01-08
•
Granted: 2002-05-07
•
Expires: 2018-01-08
Abstract
Abstract A communication server maintains profile information on twisted pair lines in a profile table. This profile information may be generated in a training session and then retrieved to train a modem or transceiver unit to communicate data over the associated twisted pair line using XDSL communication techniques.
Inventors
- 👤 John F. McHale
- 👤 Robert H. Locklear, Jr.
- 👤 James R. Sisk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:34
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/28; H04L12/2854; H04L12/2856; H04L12/2858; H04L12/2859; H04L12/2869; H04L12/287; H04L12/2874; H04L12/2878; H04L12/2887; H04L12/2889; H04L12/46; H04L12/4604; H04L12/4612; H04L12/54; H04L12/56; H04L12/5691; H04L12/5692; H04L27/00; H04L27/0008; H04M; H04M11/00; H04M11/06; H04M11/062; H04Q; H04Q11/00; H04Q11/04; H04Q11/0421; H04Q2213/00; H04Q2213/13003; H04Q2213/1302; H04Q2213/13036; H04Q2213/13039; H04Q2213/1304; H04Q2213/13093; H04Q2213/13103; H04Q2213/13106; H04Q2213/13109; H04Q2213/1319; H04Q2213/13196; H04Q2213/13199; H04Q2213/13203; H04Q2213/13204; H04Q2213/13213; H04Q2213/1329; H04Q2213/13292; H04Q2213/13299; H04Q2213/13302; H04Q2213/1332; H04Q2213/13322; H04Q2213/1334; H04Q2213/13349; H04Q2213/13389
Claims Analysis
Total Claims: 62
Claim 1
Independent Claim
86 words
A communication server coupled to a plurality of twisted pair lines, the communication server comprising: a plurality of XDSL transceiver units; a line profile table having pre-stored profile information that reflects electrical parameters of each of a plurality of twisted pair lines for XDSL service; and a system controller operable to retrieve profile information for a twisted pair line from the line profile table, the system controller further operable to provide the retrieved profile information to an XDSL transceiver unit coupled to the twisted pair line.
Claim 2
Dependent Claim
86 words
A communication server coupled to a plurality of twisted pair lines, the communication server comprising: a plurality of XDSL transceiver units; a line profile table having pre-stored profile information that reflects electrical parameters of each of a plurality of twisted pair lines for XDSL service; and a system controller operable to retrieve profile information for a twisted pair line from the line profile table, the system controller further operable to provide the retrieved profile information to an XDSL transceiver unit coupled to the twisted pair line.
Claim 3
Dependent Claim
46 words
The communication server of claim 1 , further comprising a plurality of line interface modules coupled to the twisted pair lines and the XDSL transceiver units, wherein the system controller directs a line interface module to couple the twisted pair line to the XDSL transceiver unit.
Claim 4
Dependent Claim
18 words
The communication server of claim 1 , further comprising a network interface coupled to the XDSL transceiver unit.
Claim 5
Dependent Claim
22 words
The communication server of claim 1 , wherein the system controller communicates with the XDSL transceiver units using a serial management bus.
Claim 6
Dependent Claim
44 words
The communication server of claim 1 , wherein each XDSL transceiver unit includes at least one digital signal processor having a plurality of registers, wherein the system controller loads profile information into the registers of the digital signal processor of the XDSL transceiver unit.
Claim 7
Dependent Claim
18 words
The communication server of claim 1 , wherein the line profile table stores profile information in non-volatile memory.
Claim 8
Dependent Claim
17 words
The communication server of claim 1 , wherein the line profile table resides on the system controller.
Claim 9
Dependent Claim
30 words
The communication server of claim 1 , wherein profile information for a twisted pair line comprises a plurality of filter coefficients that reflect physical parameters of the twisted pair line.
Claim 10
Dependent Claim
40 words
The communication server of claim 1 , wherein profile information for a twisted pair line comprises: a plurality of filter coefficients that reflect physical parameters of the twisted pair line; and an associated data rate for the twisted pair line.
Claim 11
Dependent Claim
65 words
The communication server of claim 1 , wherein profile information for a twisted pair line comprises: a plurality of filter coefficients that reflect physical parameters of the twisted pair line; an associated data rate for the twisted pair line; and a margin for the twisted pair line representing the difference between a current or expected signal strength and a minimum signal strength to maintain communication.
Claim 12
Dependent Claim
39 words
The communication server of claim 1 , wherein profile information for a twisted pair line comprises: a plurality of upstream filter coefficients for the twisted pair line; and a plurality of downstream filter coefficients for the twisted pair line.
Claim 13
Dependent Claim
24 words
The communication server of claim 1 , wherein the line profile table comprises profile information indexed by subscriber information for each twisted pair line.
Claim 14
Dependent Claim
19 words
The communication server of claim 1 , wherein each twisted pair line forms a local loop to a subscriber.
Claim 15
Dependent Claim
24 words
The communication server of claim 1 , wherein the XDSL transceiver unit uses profile information to perform carrier-less amplitude phase modulation to communicate information.
Claim 16
Dependent Claim
20 words
The communication server of claim 1 , wherein profile information comprises physical or electrical characteristics of each twisted pair line.
Claim 17
Dependent Claim
36 words
The communication server of claim 1 , wherein the transceiver units are operable to test the quality of the retrieved profile information and adjust the profile information if the profile information is not of sufficient quality.
Claim 18
Dependent Claim
84 words
A communication device, comprising: an XDSL transceiver unit operable to couple to a twisted pair line; a plurality of registers associated with the XDSL transceiver unit; and a microcontroller coupled to the XDSL transceiver unit and the registers, the microcontroller operable to receive pre-stored profile information that reflects electrical parameters of the twisted pair line for XDSL service from an external device, the microcontroller further operable to store the profile information in the registers in preparation for XDSL communication using the twisted pair line.
Claim 19
Dependent Claim
84 words
A communication device, comprising: an XDSL transceiver unit operable to couple to a twisted pair line; a plurality of registers associated with the XDSL transceiver unit; and a microcontroller coupled to the XDSL transceiver unit and the registers, the microcontroller operable to receive pre-stored profile information that reflects electrical parameters of the twisted pair line for XDSL service from an external device, the microcontroller further operable to store the profile information in the registers in preparation for XDSL communication using the twisted pair line.
Claim 20
Dependent Claim
36 words
The communication device of claim 17 , wherein the microcontroller is further operable to direct the XDSL transceiver unit to perform a test on the twisted pair line after storing the profile information in the registers.
Claim 21
Dependent Claim
14 words
The communication device of claim 17 , wherein the external device comprises non-volatile memory.
Claim 22
Dependent Claim
15 words
The communication device of claim 17 , wherein the external device comprises a system controller.
Claim 23
Dependent Claim
20 words
The communication device of claim 17 , wherein the microcontroller communicates with the external device using a serial management bus.
Claim 24
Dependent Claim
24 words
The communication device of claim 17 , wherein the registers are associated with at least one digital signal processor in the XDSL transceiver unit.
Claim 25
Dependent Claim
25 words
The communication device of claim 17 , wherein profile information comprises a plurality of filter coefficients that reflect physical parameters of the twisted pair line.
Claim 26
Dependent Claim
35 words
The communication device of claim 17 , wherein profile information comprises: a plurality of filter coefficients that reflect physical parameters of the twisted pair line; and an associated data rate for the twisted pair line.
Claim 27
Dependent Claim
60 words
The communication device of claim 17 , wherein profile information comprises: a plurality of filter coefficients that reflect physical parameters of the twisted pair line; an associated data rate for the twisted pair line; and a margin for the twisted pair line representing the difference between a current or expected signal strength and a minimum signal strength to maintain communication.
Claim 28
Dependent Claim
34 words
The communication device of claim 17 , wherein profile information comprises: a plurality of upstream filter coefficients for the twisted pair line; and a plurality of downstream filter coefficients for the twisted pair line.
Claim 29
Dependent Claim
19 words
The communication device of claim 17 , wherein the twisted pair line forms a local loop to a subscriber.
Claim 30
Dependent Claim
24 words
The communication device of claim 17 , wherein the XDSL transceiver unit uses profile information to perform carrier-less amplitude phase modulation to communicate information.
Claim 31
Dependent Claim
21 words
The XDSL transceiver unit of claim 17 , wherein profile information comprises physical or electrical characteristics of the twisted pair line.
Claim 32
Dependent Claim
37 words
The communication device of claim 17 , wherein the XDSL transceiver unit is operable to test the quality of the retrieved profile information and adjust the profile information if the profile information is not of sufficient quality.
Claim 33
Independent Claim
83 words
A method for communicating using a plurality of XDSL transceiver units and a plurality of twisted pair lines, the method comprising: storing profile information that reflects electrical parameters of each of a plurality of twisted pair lines for XDSL service; coupling an XDSL transceiver unit to a twisted pair line; retrieving the previously stored profile information for the twisted pair line; and providing the retrieved profile information to the XDSL transceiver unit coupled to the twisted pair line in preparation for XDSL communication.
Claim 34
Independent Claim
83 words
A method for communicating using a plurality of XDSL transceiver units and a plurality of twisted pair lines, the method comprising: storing profile information that reflects electrical parameters of each of a plurality of twisted pair lines for XDSL service; coupling an XDSL transceiver unit to a twisted pair line; retrieving the previously stored profile information for the twisted pair line; and providing the retrieved profile information to the XDSL transceiver unit coupled to the twisted pair line in preparation for XDSL communication.
Claim 35
Dependent Claim
35 words
The method of claim 31 , further comprising: receiving a request for service on the twisted pair line; and directing a line interface module to couple the twisted pair line to the XDSL transceiver unit.
Claim 36
Dependent Claim
32 words
The method of claim 31 , wherein providing the retrieved profile information comprises communicating the retrieved profile information from a system controller to the XDSL transceiver unit using a serial management bus.
Claim 37
Dependent Claim
36 words
The method of claim 31 , wherein providing the retrieved profile information comprises loading the retrieved profile information into a plurality of registers associated with at least one digital signal processor in the XDSL transceiver unit.
Claim 38
Dependent Claim
17 words
The method of claim 31 , wherein storing profile information comprises storing profile information in non-volatile memory.
Claim 39
Dependent Claim
18 words
The method of claim 31 , wherein storing profile information comprises storing profile information at a system controller.
Claim 40
Dependent Claim
29 words
The method of claim 31 , wherein profile information for a twisted pair line comprises a plurality of filter coefficients that reflect physical parameters of the twisted pair line.
Claim 41
Dependent Claim
39 words
The method of claim 31 , wherein profile information for a twisted pair line comprises: a plurality of filter coefficients that reflect physical parameters of the twisted pair line; and an associated data rate for the twisted pair line.
Claim 42
Dependent Claim
64 words
The method of claim 31 , wherein profile information for a twisted pair line comprises: a plurality of filter coefficients that reflect physical parameters of the twisted pair line; an associated data rate for the twisted pair line; and a margin for the twisted pair line representing the difference between a current or expected signal strength and a minimum signal strength to maintain communication.
Claim 43
Dependent Claim
38 words
The method of claim 31 , wherein profile information for a twisted pair line comprises: a plurality of upstream filter coefficients for the twisted pair line; and a plurality of downstream filter coefficients for the twisted pair line.
Claim 44
Dependent Claim
18 words
The method of claim 31 , wherein each twisted pair line forms a local loop to a subscriber.
Claim 45
Dependent Claim
21 words
The method of claim 31 , further comprising the step of performing carrier-less amplitude phase modulation using the retrieved profile information.
Claim 46
Dependent Claim
19 words
The method of claim 31 , wherein profile information comprises physical or electrical characteristics of each twisted pair line.
Claim 47
Dependent Claim
30 words
The method of claim 31 , further comprising: testing the quality of the retrieved profile information; and adjusting the profile information if the profile information is not of sufficient quality.
Claim 48
Independent Claim
62 words
A method for communicating performed on an XDSL transceiver unit, comprising: coupling an XDSL transceiver unit to a twisted pair line; receiving pre-stored profile information that reflects electrical parameters of the twisted pair line for XDSL service from an external device; and storing the received profile information in the XDSL transceiver unit in preparation for XDSL communication using the twisted pair line.
Claim 49
Independent Claim
62 words
A method for communicating performed on an XDSL transceiver unit, comprising: coupling an XDSL transceiver unit to a twisted pair line; receiving pre-stored profile information that reflects electrical parameters of the twisted pair line for XDSL service from an external device; and storing the received profile information in the XDSL transceiver unit in preparation for XDSL communication using the twisted pair line.
Claim 50
Dependent Claim
33 words
The method of claim 45 , wherein coupling the XDSL transceiver unit to the twisted pair line comprises coupling the XDSL transceiver unit to the twisted pair line using a line interface module.
Claim 51
Dependent Claim
30 words
The method of claim 45 , further comprising the step of performing a test on the twisted pair line after storing the received profile information in the XDSL transceiver unit.
Claim 52
Dependent Claim
14 words
The method of claim 45 , wherein the external device comprises a system controller.
Claim 53
Dependent Claim
23 words
The method of claim 45 , wherein receiving profile information comprises receiving profile information from the external device using a serial management bus.
Claim 54
Dependent Claim
41 words
The method of claim 45 , wherein storing the received profile information in the XDSL transceiver unit comprises storing the received profile information in a plurality of registers associated with at least one digital signal processor in the XDSL transceiver unit.
Claim 55
Dependent Claim
24 words
The method of claim 45 , wherein profile information comprises a plurality of filter coefficients that reflect physical parameters of the twisted pair line.
Claim 56
Dependent Claim
34 words
The method of claim 45 , wherein profile information comprises: a plurality of filter coefficients that reflect physical parameters of the twisted pair line; and an associated data rate for the twisted pair line.
Claim 57
Dependent Claim
59 words
The method of claim 45 , wherein profile information comprises: a plurality of filter coefficients that reflect physical parameters of the twisted pair line; an associated data rate for the twisted pair line; and a margin for the twisted pair line representing the difference between a current or expected signal strength and a minimum signal strength to maintain communication.
Claim 58
Dependent Claim
33 words
The method of claim 45 , wherein profile information comprises: a plurality of upstream filter coefficients for the twisted pair line; and a plurality of downstream filter coefficients for the twisted pair line.
Claim 59
Dependent Claim
18 words
The method of claim 45 , wherein the twisted pair line forms a local loop to a subscriber.
Claim 60
Dependent Claim
21 words
The method of claim 45 , further comprising the step of performing carrier-less amplitude phase modulation using the retrieved profile information.
Claim 61
Dependent Claim
19 words
The method of claim 45 , wherein profile information comprises physical or electrical characteristics of the twisted pair line.
Claim 62
Dependent Claim
30 words
The method of claim 45 , further comprising: testing the quality of the received profile information; and adjusting the profile information if the profile information is not of sufficient quality.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-05-06 | 2005-11-05 | 2006-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-05-06 | 2009-11-05 | 2010-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-05-06 | 2013-11-05 | 2014-05-07 | $7700.00 | Window Closed / Lapsed |