System and method of perivascular pressure and flow measurement
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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Abstract
A system and method for measuring fluid flow in a conduit and pressure in a conduit is disclosed. A preferred embodiment of the system and method uses an ultrasound sensor for determining volume of flow and a tonometric system for determining pressure.
79 Citations
18 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 7, 8)
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6. (canceled)
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9. (canceled)
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10. (canceled)
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11. 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:
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constructing a GEM OAM frame having a GEM header field and a GEM payload field, the GEM payload field containing OAM representation information and the OAM information, the OAM representation information indicating that the GEM OAM frame contains 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 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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12. A method for transmitting OAM information from an ONU/ONT to an OLT during a GEM mode in a Gigabit-capable passive optical network, the method comprising the steps of:
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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 OLT to perform an operation according to the OAM information, 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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13. A method for transmitting OAM information from an ONU/ONT to an OLT during a GEM mode in a Gigabit-capable passive optical network, the method comprising the steps of:
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constructing a GEM OAM frame having a GEM header field and a GEM payload field, the GEM payload field containing OAM representation information and the OAM information, the OAM representation information indicating that the GEM OAM frame contains the OAM information; and
transmitting the constructed GEM OAM frame to enable the OLT to perform an operation according to the OAM information, 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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14. A Gigabit Passive Optical Network (G-PON) communication system comprising:
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an optical line termination (OLT);
an optical distribution network (ODN) in communication with the OLT;
a plurality of optical network units (ONUs) which receives downstream frames from the OLT via the ODN, and sends upstream data to the ODN for multiplexing and transmission to the OLT;
wherein at least one downstream frame comprises a GEM OAM frame to enable the ONU/ONT to perform an operation according to the OAM information, said GEM OAM frame comprising a GEM header field and a GEM payload field, the GEM header field containing OAM representation information, and the GEM payload field containing the OAM information; and
wherein the GEM header field includes a port ID field for differentiating traffics from each other in order to provide a traffic multiplexing for the GEM frame, and the port ID field includes predetermined bits for storing the OAM representation information indicating that the GEM OAM frame contains the OAM information.
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15. 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:
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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 a port ID field for differentiating traffics from each other in order to provide a traffic multiplexing for the GEM frame, and the port ID field includes predetermined bits for storing the OAM representation information indicating that the GEM OAM frame contains the OAM information. - View Dependent Claims (17)
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16. 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:
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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 a port ID field for differentiating traffics from each other in order to provide a traffic multiplexing of the GEM frame, and a port value represented by the port ID field reports a destination of a specific ONU/ONT and indicates the frame containing the OAM information. - View Dependent Claims (18)
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Specification