Forensic diagnostic capability including G.inp
View Patent ↗There is a need for a forensic diagnostic capability to facilitate a greater understanding of why xDSL transceivers are subject to otherwise inexplicable service interruptions during Showtime (steady state data transmission mode). In certain exemplary embodiments, diagnostic data from a previous Showtime is stored and then communicated to another transceiver and/or reported (or communicated) to a management entity. The stored diagnostic data can be used to determine why the service interruption occurred. In other embodiments, one or more portions diagnostic data from a last Showtime are stored. In additional embodiments, this diagnostic data is collected immediately prior to exiting Showtime and/or retraining (the “last” data collected prior to exiting Showtime and/or retraining). Alternatively, or in addition, the diagnostic data can be collected during a current Showtime using a sliding window that covers the most recently received signals and communicated to another transceiver and/or a management entity during the current Showtime.
1. A method comprising:
receiving or transmitting, by a Digital Subscriber Line (DSL) transceiver, a plurality of multicarrier symbols in a first data communication state, wherein the first data communication state is a data transmission state, a Showtime state or steady state transmission;
determining a SymbolCount, wherein the SymbolCount is a value that indicates a number of multicarrier symbols received or transmitted over a communication line after entering the first data communication state;
one or more of determining, storing, measuring and detecting, prior to exiting the first data communication state, two or more of following diagnostic data:
a SymbolCount of a value of a last DMT (Discrete Multitone Modulation) symbol received or transmitted prior to exiting Showtime,
a SymbolCount of a value of at least one change of a LOS (Loss of Signal) defect state,
a SymbolCount of a value of at least one change of a SEF (Severely Errored Frame) defect state,
a SymbolCount of a value of at least one change of a LOM (Loss of Margin) defect state,
a SymbolCount of a value of at least one change of a far-end LOS defect state,
a SymbolCount of a value of at least one change of an RDI (Remote Defect Indication) defect state,
a SymbolCount of a value of at least one change of a far-end LOM defect state,
a SymbolCount of a value of at least one change of a LOS failure state,
a SymbolCount of a value of at least one change of a LOF (Loss of Frame) failure state,
a SymbolCount of a value of at least one change of an Errored Second state,
a SymbolCount of a value of at least one change of a Severely Errored Second state,
one or more of a SymbolCount of a value and number of subcarriers of at least one Successful Receiver Bitswap,
one or more of a SymbolCount of a value and number of subcarriers of at least one Successful Transmitter Bitswap,
one or more of a SymbolCount of a value and number of subcarriers of at least one Failed Bitswap Request,
one or more of a SymbolCount of a value and number of subcarriers and/or data rate change of at least one Successful Receiver SRA (Seamless Rate Adaptation),
one or more of a SymbolCount of a value, a number of subcarriers and a data rate change of at least one Successful Transmitter SRA,
one or more of a SymbolCount of a value, a number of subcarriers and a data rate change of at least one Failed SRA,
a SymbolCount of a value of at least one change in a LEFTR (Low Error-Free Throughput Rate) defect state,
a SymbolCount of a value of at least one change of a LEFTR defect Second state,
a SymbolCount of a value of at least one change of an Uncorrected DTU (Data Transmission Unit) Second state,
a SymbolCount of a value of at least one change of a Retransmitted DTU Second state,
a SymbolCount of a value of at least one change of a Corrected DTU Second state,
a SymbolCount of a value of at least one Retransmission request message,
a SymbolCount of a value of at least one change of a Severely Uncorrected DTU Second state,
a SymbolCount of a value of at least one change of a Severely Retransmitted DTU Second state, and
a SymbolCount of a value of at least one change of a Severely Corrected DTU Second state,
exiting the first data communication state and entering a second data communication state; and
transmitting a message, wherein the message contains information indicating at least two of the diagnostic data.
2. A method comprising:
receiving or transmitting, by a Digital Subscriber Line (DSL) transceiver, a plurality of multicarrier symbols in a first data communication state, wherein the first data communication state is a data transmission state, a Showtime state or steady state transmission;
determining a SymbolCount, wherein the SymbolCount is a value that indicates a number of multicarrier symbols received or transmitted over a communication line after entering the first data communication state;
receiving a message comprising two or more of following diagnostic data:
a SymbolCount of a value of a last DMT (Discrete Multitone Modulation) symbol received or transmitted prior to exiting Showtime,
a SymbolCount of a value of at least one change of a LOS (Loss of Signal) defect state,
a SymbolCount of a value of at least one change of a SEF (Severely Errored Frame) defect state,
a SymbolCount of a value of at least one change of a LOM (Loss of Margin) defect state,
a SymbolCount of a value of at least one change of a far-end LOS defect state,
a SymbolCount of a value of at least one change of an RDI (Remote Defect Indication) defect state,
a SymbolCount of a value of at least one change of a far-end LOM defect state,
a SymbolCount of a value of at least one change of a LOS failure state,
a SymbolCount of a value of at least one change of a LOF (Loss of Frame) failure state,
a SymbolCount of a value of at least one change of an Errored Second state,
a SymbolCount of a value of at least one change of a Severely Errored Second state,
one or more of a SymbolCount of a value and a number of subcarriers of at least one Successful Receiver Bitswap,
one or more of a SymbolCount of a value and number of subcarriers of at least one Successful Transmitter Bitswap,
one or more of a SymbolCount of a value and number of subcarriers of at least one Failed Bitswap Request,
one or more of a SymbolCount of a value, a number of subcarriers and data rate change of at least one Successful Receiver SRA (Seamless Rate Adaptation),
one or more of a SymbolCount of a value, a number of subcarriers and data rate change of at least one Successful Transmitter SRA,
one or more of a SymbolCount of a value, a number of subcarriers and data rate change of at least one Failed SRA,
a SymbolCount of a value of at least one change in a LEFTR (Low Error-Free Throughput Rate) defect state,
a SymbolCount of a value of at least one change of a LEFTR defect Second state,
a SymbolCount of a value of at least one change of an Uncorrected DTU (Data Transmission Unit) Second state,
a SymbolCount of a value of at least one change of a Retransmitted DTU Second state,
a SymbolCount of a value of at least one change of a Corrected DTU Second state,
a SymbolCount of a value of at least one Retransmission request message,
a SymbolCount of a value of at least one change of a Severely Uncorrected DTU Second state,
a SymbolCount of a value of at least one change of the-a Severely Retransmitted DTU Second state, and
a SymbolCount of a value of at least one change of a Severely Corrected DTU Second state; and
exiting the first data communication state and entering a second data communication state.
3. The method of claim 1 , wherein the message is transmitted during an initialization or diagnostic mode after exiting the first data communication state.
4. The method of claim 1 , wherein the message is transmitted during the second data communication state after exiting the first data communication state.
5. The method of claim 1 , wherein the message is transmitted in the first data communication state.
6. The method of claim 1 , wherein at least one of diagnostic data is reported to a management entity or a MIB (Management Information Base).
7. The method of claim 1 , wherein the second data communication state is a data transmission state, a Showtime state or steady state transmission.
8. A method comprising:
receiving or transmitting, by a Digital Subscriber Line (DSL) transceiver, a plurality of multicarrier symbols in a first data communication state, wherein the first data communication state is a data transmission state, a Showtime state or steady state transmission;
determining a timestamp, wherein the timestamp is a count of elapsed time after entering the first data communication state;
one or more of determining, storing, measuring and detecting, prior to exiting the first data communication, two or more of following diagnostic data:
a timestamp of a last DMT (Discrete Multitone Modulation) symbol received or transmitted prior to exiting Showtime,
a timestamp of at least one change of a LOS (Loss of Signal) defect state,
a timestamp of at least one change of a SEF (Severely Errored Frame) defect state,
a timestamp of at least one change of a LOM (Loss of Margin) defect state,
a timestamp of at least one change of a far-end LOS defect state,
a timestamp of at least one change of an RDI (Remote Defect Indication) defect state,
a timestamp of at least one change of a far-end LOM defect state,
a timestamp of at least one change of a LOS failure state,
a timestamp of at least one change of a LOF (Loss of Frame) failure state,
a timestamp of at least one change of an Errored Second state,
a timestamp of at least one change of a Severely Errored Second state,
one or more of a timestamp and a number of subcarriers of at least one Successful Receiver Bitswap,
one or more of a timestamp and number of subcarriers of at least one Successful Transmitter Bitswap,
one or more of a timestamp and number of subcarriers of at least one Failed Bitswap Request,
one or more of a timestamp, a number of subcarriers and data rate change of at least one Successful Receiver SRA (Seamless Rate Adaptation),
one or more of a timestamp, a number of subcarriers and data rate change of at least one Successful Transmitter SRA,
one or more of a timestamp, a number of subcarriers and data rate change of at least one Failed SRA,
a timestamp of at least one change in a LEFTR (Low Error-Free Throughput Rate) defect state,
a timestamp of at least one change of a LEFTR defect Second state,
a timestamp of at least one change of an Uncorrected DTU (Data Transmission Unit) Second state,
a timestamp of at least one change of a Retransmitted DTU Second state,
a timestamp of at least one change of a Corrected DTU Second state,
a timestamp of at least one Retransmission request message,
a timestamp of at least one change of a Severely Uncorrected DTU Second state,
a timestamp of at least one change of the-a Severely Retransmitted DTU Second state, and
a timestamp of at least one change of a Severely Corrected DTU Second state;
exiting the first data communication state and entering a second data communication state; and
transmitting a message, wherein the message contains information indicating at least two of the diagnostic data.
9. A method comprising:
receiving or transmitting, by a Digital Subscriber Line (DSL) transceiver, a plurality of multicarrier symbols in a first data communication state, wherein the first data communication state is a data transmission state, a Showtime state or steady state transmission;
determining a timestamp, wherein the timestamp is a count of elapsed time after entering the first data communication state;
receiving a message comprising two or more of following diagnostic data:
a timestamp of a last DMT (Discrete Multitone Modulation) symbol received or transmitted prior to exiting Showtime,
a timestamp of at least one change of a LOS (Loss of Signal) defect state,
a timestamp of at least one change of a SEF (Severely Errored Frame) defect state,
a timestamp of at least one change of a LOM (Loss of Margin) defect state,
a timestamp of at least one change of a far-end LOS defect state,
a timestamp of at least one change of an RDI (Remote Defect Indication) defect state,
a timestamp of at least one change of a far-end LOM defect state,
a timestamp of at least one change of a LOS failure state,
a timestamp of at least one change of a LOF (Loss of Frame) failure state,
a timestamp of at least one change of an Errored Second state,
a timestamp of at least one change of a Severely Errored Second state,
one or more of a timestamp and a number of subcarriers of at least one Successful Receiver Bitswap,
one or more of a timestamp and a number of subcarriers of at least one Successful Transmitter Bitswap,
one or more of a timestamp and a number of subcarriers of at least one Failed Bitswap Request,
one or more of a timestamp, number of subcarriers and data rate change of at least one Successful Receiver SRA (Seamless Rate Adaptation),
one or more of a timestamp, number of subcarriers and data rate change of at least one Successful Transmitter SRA,
one or more of a timestamp, number of subcarriers and data rate change of at least one Failed SRA,
a timestamp of at least one change in a LEFTR (Low Error-Free Throughput Rate) defect state,
a timestamp of at least one change of a LEFTR defect Second state,
a timestamp of at least one change of an Uncorrected DTU (Data Transmission Unit) Second state,
a timestamp of at least one change of a Retransmitted DTU Second state,
a timestamp of at least one change of a Corrected DTU Second state,
a timestamp of at least one Retransmission request message,
a timestamp of at least one change of a Severely Uncorrected DTU Second state,
a timestamp of at least one change of the-a Severely Retransmitted DTU Second state, and
a timestamp of at least one change of a Severely Corrected DTU Second state; and
exiting the first data communication state and entering a second data communication state.
10. The method of claim 8 , wherein the message is transmitted during an initialization or diagnostic mode after exiting the first data communication state.
11. The method of claim 8 , wherein the message is transmitted during the second data communication state after exiting the first data communication state.
12. The method of claim 8 , wherein the message is transmitted in the first data communication state.
13. The method of claim 8 , wherein at least one of diagnostic data is reported to a management entity or a MIB (Management Information Base).
14. The method of claim 8 , wherein the second data communication state is a data transmission state, a Showtime state or steady state transmission.
15. The method of claim 8 , wherein the elapsed time is measured in seconds or fractions of seconds.
16. A non-transitory computer-readable information storage media having instructions stored thereon, that if executed by a processor, cause to be performed the method steps in claim 1 .
17. A system comprising:
a transmitter module configured to transmit or a receiver module configured to receive a plurality of multicarrier symbols in a first data communication state of a Digital Subscriber Line (DSL) modem, wherein the first data communication state is a data transmission state, a Showtime state or steady state transmission;
a count module configured to determine a SymbolCount, wherein the SymbolCount is a value that indicates a number of multicarrier symbols received or transmitted over a communication line after entering the first data communication state;
one or more of a diagnostic data collection module and a measuring module configured to at least one of determining, storing, measuring and detecting, prior to exiting the first data communication state, two or more of following diagnostic data:
a SymbolCount of a value of a last DMT (Discrete Multitone Modulation) symbol received or transmitted prior to exiting Showtime,
a SymbolCount of a value of at least one change of a LOS (Loss of Signal) defect state,
a SymbolCount of a value of at least one change of a SEF (Severely Errored Frame) defect state,
a SymbolCount of a value of at least one change of a LOM (Loss of Margin) defect state,
a SymbolCount of a value of at least one change of a far-end LOS defect state,
a SymbolCount of a value of at least one change of an RDI (Remote Defect Indication) defect state,
a SymbolCount of a value of at least one change of a far-end LOM defect state,
a SymbolCount of a value of at least one change of a LOS failure state,
a SymbolCount of a value of at least one change of a LOF (Loss of Frame) failure state,
a SymbolCount of a value of at least one change of an Errored Second state,
a SymbolCount of a value of at least one change of a Severely Errored Second state,
one or more of a SymbolCount of a value and number of subcarriers of at least one Successful Receiver Bitswap,
one or more of a SymbolCount of a value and number of subcarriers of at least one Successful Transmitter Bitswap,
one or more of a SymbolCount of a value and number of subcarriers of at least one Failed Bitswap Request,
one or more of a SymbolCount of a value and number of subcarriers and/or data rate change of at least one Successful Receiver SRA (Seamless Rate Adaptation),
one or more of a SymbolCount of a value, a number of subcarriers and a data rate change of at least one Successful Transmitter SRA,
one or more of a SymbolCount of a value, a number of subcarriers and a data rate change of at least one Failed SRA,
a SymbolCount of a value of at least one change in a LEFTR (Low Error-Free Throughput Rate) defect state,
a SymbolCount of a value of at least one change of a LEFTR defect Second state,
a SymbolCount of a value of at least one change of an Uncorrected DTU (Data Transmission Unit) Second state,
a SymbolCount of a value of at least one change of a Retransmitted DTU Second state,
a SymbolCount of a value of at least one change of a Corrected DTU Second state,
a SymbolCount of a value of at least one Retransmission request message,
a SymbolCount of a value of at least one change of a Severely Uncorrected DTU Second state,
a SymbolCount of a value of at least one change of a Severely Retransmitted DTU Second state, and
a SymbolCount of a value of at least one change of a Severely Corrected DTU Second state,
a state transition module configured to exit the first data communication state and enter a second data communication state; and
a message assembly module configured to transmit a message, wherein the message contains information indicating at least two of the diagnostic data.
18. The system of claim 17 , wherein the message is transmitted during an initialization or diagnostic mode after exiting the first data communication state.
19. The system of claim 17 , wherein the message is transmitted during the second data communication state after exiting the first data communication state.
20. The system of claim 17 , wherein the message is transmitted in the first data communication state.
21. The system of claim 17 , wherein at least one of diagnostic data is reported to a management entity or a MIB (Management Information Base).
22. The system of claim 17 , wherein the second data communication state is a data transmission state, a Showtime state or steady state transmission.
23. A system comprising:
a receiver module configured to receive or a transmitter module configured to transmit a plurality of multicarrier symbols in a first data communication state of a Digital Subscriber Line (DSL) modem, wherein the first data communication state is a data transmission state, a Showtime state or steady state transmission;
a timestamp module configured to determine a timestamp, wherein the timestamp is a count of elapsed time after entering the first data communication state;
one or more of a diagnostic data collection module and a measuring module configured to at least one of determining, storing, measuring and detecting, prior to exiting the first data communication, two or more of following diagnostic data:
a timestamp of a last DMT (Discrete Multitone Modulation) symbol received or transmitted prior to exiting Showtime,
a timestamp of at least one change of a LOS (Loss of Signal) defect state,
a timestamp of at least one change of a SEF (Severely Errored Frame) defect state,
a timestamp of at least one change of a LOM (Loss of Margin) defect state,
a timestamp of at least one change of a far-end LOS defect state,
a timestamp of at least one change of an RDI (Remote Defect Indication) defect state,
a timestamp of at least one change of a far-end LOM defect state,
a timestamp of at least one change of a LOS failure state,
a timestamp of at least one change of a LOF (Loss of Frame) failure state,
a timestamp of at least one change of an Errored Second state,
a timestamp of at least one change of a Severely Errored Second state,
one or more of a timestamp and a number of subcarriers of at least one Successful Receiver Bitswap,
one or more of a timestamp and number of subcarriers of at least one Successful Transmitter Bitswap,
one or more of a timestamp and number of subcarriers of at least one Failed Bitswap Request,
one or more of a timestamp, a number of subcarriers and data rate change of at least one Successful Receiver SRA(Seamless Rate Adaptation),
one or more of a timestamp, a number of subcarriers and data rate change of at least one Successful Transmitter SRA,
one or more of a timestamp, a number of subcarriers and data rate change of at least one Failed SRA,
a timestamp of at least one change in a LEFTR (Low Error-Free Throughput Rate) defect state,
a timestamp of at least one change of a LEFTR defect Second state,
a timestamp of at least one change of an Uncorrected DTU (Data Transmission Unit) Second state,
a timestamp of at least one change of a Retransmitted DTU Second state,
a timestamp of at least one change of a Corrected DTU Second state,
a timestamp of at least one Retransmission request message,
a timestamp of at least one change of a Severely Uncorrected DTU Second state,
a timestamp of at least one change of a Severely Retransmitted DTU Second state, and
a timestamp of at least one change of a Severely Corrected DTU Second state;
a state transition module configured to exit the first data communication state and enter a second data communication state; and
a message assembly module configured to transmit a message, wherein the message contains information indicating at least two of the diagnostic data.
24. The system of claim 23 , wherein the message is transmitted during an initialization or diagnostic mode after exiting the first data communication state.
25. The system of claim 23 , wherein the message is transmitted during the second data communication state after exiting the first data communication state.
26. The system of claim 23 , wherein the message is transmitted in the first data communication state.
27. The system of claim 23 , wherein at least one of diagnostic data is reported to a management entity or a MIB (Management Information Base).
28. The system of claim 23 , wherein the second data communication state is a data transmission state, a Showtime state or steady state transmission.
29. The system of claim 23 , wherein the elapsed time is measured in seconds or fractions of seconds.
30. A system comprising:
a transmitter module configured to transmit or a receiver module configured to receive a plurality of multicarrier symbols in a first data communication state, wherein the first data communication state is a data transmission state, a Showtime state or steady state transmission;
a count module configured to determine a SymbolCount, wherein the SymbolCount is a value that indicates a number of multicarrier symbols received or transmitted over a communication line after entering the first data communication state;
one or more of a diagnostic data collection module and a measuring module configured to at least one of determining, storing, measuring and detecting, prior to exiting the first data communication state, three or more of following diagnostic data:
a SymbolCount of a value of a last DMT (Discrete Multitone Modulation) symbol received or transmitted prior to exiting Showtime,
a SymbolCount of a value of at least one change of a LOS (Loss of Signal) defect state,
a SymbolCount of a value of at least one change of a SEF (Severely Errored Frame) defect state,
a SymbolCount of a value of at least one change of a LOM (Loss of Margin) defect state,
a SymbolCount of a value of at least one change of a far-end LOS defect state,
a SymbolCount of a value of at least one change of an RDI (Remote Defect Indication) defect state,
a SymbolCount of a value of at least one change of a far-end LOM defect state,
a SymbolCount of a value of at least one change of a LOS failure state,
a SymbolCount of a value of at least one change of a LOF (Loss of Frame) failure state,
a SymbolCount of a value of at least one change of an Errored Second state,
a SymbolCount of a value of at least one change of a Severely Errored Second state,
one or more of a SymbolCount of a value and number of subcarriers of at least one Successful Receiver Bitswap,
one or more of a SymbolCount of a value and number of subcarriers of at least one Successful Transmitter Bitswap,
one or more of a SymbolCount of a value and number of subcarriers of at least one Failed Bitswap Request,
one or more of a SymbolCount of a value and number of subcarriers and/or data rate change of at least one Successful Receiver SRA (Seamless Rate Adaptation),
one or more of a SymbolCount of a value, a number of subcarriers and a data rate change of at least one Successful Transmitter SRA,
one or more of a SymbolCount of a value, a number of subcarriers and a data rate change of at least one Failed SRA,
a SymbolCount of a value of at least one change in a LEFTR (Low Error-Free Throughput Rate) defect state,
a SymbolCount of a value of at least one change of a LEFTR defect Second state,
a SymbolCount of a value of at least one change of an Uncorrected DTU (Data Transmission Unit) Second state,
a SymbolCount of a value of at least one change of a Retransmitted DTU Second state,
a SymbolCount of a value of at least one change of a Corrected DTU Second state,
a SymbolCount of a value of at least one Retransmission request message,
a SymbolCount of a value of at least one change of a Severely Uncorrected DTU Second state,
a SymbolCount of a value of at least one change of a Severely Retransmitted DTU Second state, and
a SymbolCount of a value of at least one change of a Severely Corrected DTU Second state,
a state transition module configured to exit the first data communication state and enter a second data communication state; and
a message assembly module configured to transmit a message, wherein the message contains information indicating at least three of the diagnostic data.
31. A system comprising:
a receiver module configured to receive or a transmitter module configured to transmit a plurality of multicarrier symbols in a first data communication state, wherein the first data communication state is a data transmission state, a Showtime state or steady state transmission;
a timestamp module configured to determine a timestamp, wherein the timestamp is a count of elapsed time after entering the first data communication state;
one or more of a diagnostic data collection module and a measuring module configured to at least one of determining, storing, measuring and detecting, prior to exiting the first data communication, three or more of following diagnostic data:
a timestamp of a last DMT (Discrete Multitone Modulation) symbol received or transmitted prior to exiting Showtime,
a timestamp of at least one change of a LOS (Loss of Signal) defect state,
a timestamp of at least one change of a SEF (Severely Errored Frame) defect state,
a timestamp of at least one change of a LOM (Loss of Margin) defect state,
a timestamp of at least one change of a far-end LOS defect state,
a timestamp of at least one change of an RDI (Remote Defect Indication) defect state,
a timestamp of at least one change of a far-end LOM defect state,
a timestamp of at least one change of a LOS failure state,
a timestamp of at least one change of a LOF (Loss of Frame) failure state,
a timestamp of at least one change of an Errored Second state,
a timestamp of at least one change of a Severely Errored Second state,
one or more of a timestamp and a number of subcarriers of at least one Successful Receiver Bitswap,
one or more of a timestamp and number of subcarriers of at least one Successful Transmitter Bitswap,
one or more of a timestamp and number of subcarriers of at least one Failed Bitswap Request,
one or more of a timestamp, a number of subcarriers and data rate change of at least one Successful Receiver SRA(Seamless Rate Adaptation),
one or more of a timestamp, a number of subcarriers and data rate change of at least one Successful Transmitter SRA,
one or more of a timestamp, a number of subcarriers and data rate change of at least one Failed SRA,
a timestamp of at least one change in a LEFTR (Low Error-Free Throughput Rate) defect state,
a timestamp of at least one change of a LEFTR defect Second state,
a timestamp of at least one change of an Uncorrected DTU (Data Transmission Unit) Second state,
a timestamp of at least one change of a Retransmitted DTU Second state,
a timestamp of at least one change of a Corrected DTU Second state,
a timestamp of at least one Retransmission request message,
a timestamp of at least one change of a Severely Uncorrected DTU Second state,
a timestamp of at least one change of a Severely Retransmitted DTU Second state, and
a timestamp of at least one change of a Severely Corrected DTU Second state;
a state transition module configured to exit the first data communication state and enter a second data communication state; and
a message assembly module configured to transmit a message, wherein the message contains information indicating at least three of the diagnostic data.
32. The system of claim 31 , wherein the message is transmitted during an initialization or diagnostic mode after exiting the first data communication state.