Synchronizing initial handshake in ADSL annex C to TTR
AssigneeCentillium Communications, Inc.
InventorsGuozhu Long, Les Brown, Sanjay Gupta
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Abstract
Techniques for establishing TTR indication in ADSL Annex C based communication systems are disclosed. The techniques enable, for example, hyperframe alignment and synchronized initialization procedures (e.g., G.hs).
Claims25
A method for synchronizing an initialization procedure with the TTR in an ADSL Annex C communication system having a transmitting node and a receiving node that are communicatively coupled, the method comprising:
- transmitting a specially defined signal during one or more sets of known FEXT symbols of a first outgoing hyperframe, so that when detected at the receiving node, the specially defined signal establishes synchronization to the TTR thereby enabling a synchronized initialization procedure.
A method for synchronizing an initialization procedure with the TTR in an ADSL Annex C communication system having a transmitting node and a receiving node that are communicatively coupled, the method comprising:
- detecting a specially defined signal during one or more sets of known FEXT symbols of an incoming hyperframe to establish synchronization to the TTR thereby enabling a synchronized initialization procedure.
A device for enabling ADSL Annex C transceivers to synchronize their transmission to a timing reference signal, the device comprising:
- a signal generator module adapted to generate a specially defined signal that is transmitted during one or more known DMT symbols of an outgoing hyperframe, so that when detected at a receiving node, the specially defined signal establishes synchronization to the timing reference signal thereby enabling a synchronized procedure.
A device for enabling ADSL Annex C transceivers to synchronize their transmission to a timing reference signal, the device comprising:
- a detector module adapted to detect a specially defined signal during one or more known DMT symbols included in an incoming hyperframe, the detection establishing synchronization to the timing reference signal thereby enabling a synchronized procedure.
A computer program product, stored on a computer readable medium, for enabling ADSL Annex C transceivers to synchronize their transmission to a timing reference signal, the computer program product comprising:
- a signal generator module adapted to generate a specially defined signal that is transmitted during one or more known DMT symbols of an outgoing hyperframe, so that when detected at a receiving node, the specially defined signal establishes synchronization to the timing reference signal thereby enabling a synchronized procedure.
A computer program product, stored on a computer readable medium, for enabling ADSL Annex C transceivers to synchronize their transmission to a timing reference signal, the computer program product comprising:
- a detector module adapted to detect a specially defined signal during one or more known DMT symbols included in an incoming hyperframe, the detection establishing synchronization to the timing reference signal thereby enabling a synchronized procedure.
A signal for use in an ADSL Annex C communication system, wherein the signal is a set of tones transmitted during a plurality of known DMT symbols included in a hyperframe, and detection of the signal enables communicating transceivers included in the system to synchronize their transmissions to the timing reference signal, thereby enabling at least one of hyperframe alignment and synchronized initialization procedures.
Dependencies are inferred from the claim text.