Method, system and apparatus for transmitting data
First Claim
1. A method for transmitting data, comprising:
- allocating an upstream bandwidth position to an Optical Network Unit (ONU), according to time length of an upstream frame;
setting an upstream timeslot indication overhead into a downstream frame according to the upstream bandwidth position and a multiframe indication;
setting the multiframe indication and the upstream timeslot indication overhead in the downstream frame; and
sending the downstream frame to the ONU;
wherein the multiframe indication is a multiframe count bit, and the multiframe count bit is part of bits in a superframe counter in a downstream physical-layer control block.
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Accused Products
Abstract
The present invention provides a method and a system for transmitting data. The OLT sets a multiframe indication and an upstream timeslot indication overhead in the downstream frame sent to the ONU. After receiving the downstream frame, the ONU determines the upstream bandwidth position according to the multiframe indication and the upstream timeslot indication overhead, and sends upstream data to the OLT from the upstream bandwidth position of the upstream frame. Through controlling the upstream data transmission by multiframes, each T-CONT carries an overhead area regardless of the length, and thus able to carry longer payload as against an equivalent overhead area in the prior art. In this way, the overhead area is saved and the bandwidth utilization is improved.
12 Citations
4 Claims
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1. A method for transmitting data, comprising:
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allocating an upstream bandwidth position to an Optical Network Unit (ONU), according to time length of an upstream frame; setting an upstream timeslot indication overhead into a downstream frame according to the upstream bandwidth position and a multiframe indication; setting the multiframe indication and the upstream timeslot indication overhead in the downstream frame; and sending the downstream frame to the ONU; wherein the multiframe indication is a multiframe count bit, and the multiframe count bit is part of bits in a superframe counter in a downstream physical-layer control block. - View Dependent Claims (2, 3)
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4. A method for transmitting data, comprising:
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allocating an upstream bandwidth position to an Optical Network Unit (ONU), according to time length of an upstream frame; setting all upstream timeslot indication overhead into a downstream frame according to the upstream bandwidth position and a multiframe indication; setting the multiframe indication and the upstream timeslot indication overhead in the downstream frame; and sending the downstream frame to the ONU; wherein the multiframe indication is a multiframe count bit, and the multiframe count bit is a multiframe counter bit that is set separately from a superframe counter.
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Specification