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System and method of perivascular pressure and flow measurement

  • US 20080021325A1
  • Filed: 06/12/2007
  • Published: 01/24/2008
  • Est. Priority Date: 06/12/2006
  • Status: Active Grant
First Claim
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1. A method for transmitting OAM information from an OLT to an ONU/ONT during a GEM mode in a Gigabit-capable passive optical network, the method comprising the steps of:

  • constructing a GEM OAM frame having a GEM header field and a GEM payload field, the GEM header field containing OAM representation information indicating that the GEM OAM frame contains the OAM information, the GEM payload field containing the OAM information; and

    transmitting the constructed GEM OAM frame to enable the ONU/ONT to perform an operation according to the OAM information, wherein the GEM header field includes an OAM type field for representing types of the OAM information, a function type field for representing functions according to the OAM types and an OAM function specific field for representing detailed operations according to the function types; and

    wherein a value of the OAM representation information is activated to indicate that the GEM OAM frame and deactivated to indicate a conventional frame.

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