Systems and methods for establishing a diagnostic transmission mode and communicating over the same

Patent metadata

Field	Value
Publication number	US-9264533-B2
Application number	US-201514818731-A
Country	US
Kind code	B2
Filing date	Aug 5, 2015
Priority date	Jan 7, 2000
Publication date	Feb 16, 2016
Grant date	Feb 16, 2016

Abstract

Upon detection of a trigger, such as the exceeding of an error threshold or the direction of a user, a diagnostic link system enters a diagnostic information transmission mode. This diagnostic information transmission mode allows for two modems to exchange diagnostic and/or test information that may not otherwise be exchangeable during normal communication. The diagnostic information transmission mode is initiated by transmitting an initiate diagnostic link mode message to a receiving modem accompanied by a cyclic redundancy check (CRC). The receiving modem determines, based on the CRC, if a robust communications channel is present. If a robust communications channel is present, the two modems can initiate exchange of the diagnostic and/or test information. Otherwise, the transmission power of the transmitting modem is increased and the initiate diagnostic link mode message re-transmitted to the receiving modem until the CRC is determined to be correct.

First claim

What is claimed is:

1. A device operable to transmit channel measurement information, comprising:
a multicarrier transceiver operable to transmit, during user data transmission or reception and using multicarrier modulation, a message that includes the channel measurement information and to modulate bits in the message using Quadrature Amplitude Modulation (QAM) or another modulation technique,
wherein the channel information part of the message comprises information indicative of a plurality of signal-to-noise ratios determined during the user data transmission or reception, each signal-to-noise ratio associated with one or more subchannels that comprise a wideband communication channel,
wherein the multicarrier transceiver is further operable to retransmit a message with a subset of data in response to the message not being successfully received by a remote receiving device.

2. The device of claim 1 , wherein the multicarrier transceiver is further operable to receive a second message that causes the multicarrier transceiver to transmit the message that includes the channel measurement information.

3. The device of claim 1 , wherein the wideband communication channel is comprised of a plurality of discrete frequency carriers.

4. The device of claim 1 , wherein the message further conveys status information associated with the multicarrier transceiver.

5. The device of claim 1 , wherein the multicarrier transceiver is further operable to receive data rate information associated with the wideband communication channel.

6. The device of claim 1 , wherein the multicarrier transceiver is further operable to receive power information associated with the remote receiving device.

7. The device of claim 1 , wherein the multicarrier transceiver is further operable to receive gain setting information associated with the remote receiving device.

8. A device operable to transmit channel measurement information, comprising:
a multicarrier transceiver operable to transmit, during user data transmission or reception and using multicarrier modulation, a message that includes the channel measurement information and to modulate bits in the message using Quadrature Amplitude Modulation (QAM) or another modulation technique,
wherein the channel information part of the message comprises information indicative of a plurality of signal-to-noise ratios determined during the user data transmission or reception, each signal-to-noise ratio associated with one or more subchannels that comprise a wideband communication channel,
wherein the multicarrier transceiver is further operable to retransmit a message, wherein the message has a decreased length, in response to the message not being successfully received by a remote receiving device.

9. The device of claim 8 , wherein the multicarrier transceiver is further operable to receive a second message that causes the multicarrier transceiver to transmit the message that includes the channel measurement information.

10. The device of claim 8 , wherein the wideband communication channel is comprised of a plurality of discrete frequency carriers.

11. The device of claim 8 , wherein the message further conveys status information associated with the multicarrier transceiver.

12. The device of claim 8 , wherein the multicarrier transceiver is further operable to receive data rate information associated with the wideband communication channel.

13. The device of claim 8 , wherein the multicarrier transceiver is further operable to receive power information associated with the remote receiving device.

14. The device of claim 8 , wherein the multicarrier transceiver is further operable to receive gain setting information associated with the remote receiving device.

15. A device operable to transmit channel measurement information, comprising:
a multicarrier transceiver operable to transmit, during user data transmission or reception and using multicarrier modulation, a message that includes the channel measurement information and to modulate bits in the message using Quadrature Amplitude Modulation (QAM) or another modulation technique,
wherein the channel information part of the message comprises information indicative of a plurality of signal-to-noise ratios determined during the user data transmission or reception, each signal-to-noise ratio associated with one or more subchannels that comprise a wideband communication channel,
wherein the multicarrier transceiver is further operable to retransmit a message with customized information in response to the message not being successfully received by a remote receiving device.

16. The device of claim 15 , wherein the multicarrier transceiver is further operable to receive a second message that causes the multicarrier transceiver to transmit the message that includes the channel measurement information.

17. The device of claim 15 , wherein the wideband communication channel is comprised of a plurality of discrete frequency carriers.

18. The device of claim 15 , wherein the message further conveys status information associated with the multicarrier transceiver.

19. The device of claim 15 , wherein the multicarrier transceiver is further operable to receive data rate information associated with the wideband communication channel.

20. The device of claim 15 , wherein the multicarrier transceiver is further operable to receive power information associated with the remote receiving device.

21. The device of claim 15 , wherein the multicarrier transceiver is further operable to receive gain setting information associated with the remote receiving device.

Assignees

• Tq Delta Llc

Inventors

• Krinsky David M
• Pizzano Jr Robert Edmund

Classifications

• H04L1/0001

  Systems modifying transmission characteristics according to link quality, e.g. power backoff (adaptive data allocation for multicarrier modulation H04L5/0044; controlling transmission power for radio systems H04W52/04) · CPC title

• H04M3/30

  for subscriber's lines {, for the local loop} · CPC title

• H04M3/2209

  for lines also used for data transmission · CPC title

• H04L1/08

  by repeating transmission, e.g. Verdan system {(H04L1/1858 and H04L1/189 take precedence)} · CPC title

• H04L27/3461

  in order to transmit a subchannel · CPC title