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Method and device for transmitting data in giga ethernet passive optical network

A Gigabit Ethernet and passive optical network technology, applied in optical fiber transmission, transmission system, star electromagnetic network, etc., can solve the problem that GE-PON transmission cannot be carried out

Inactive Publication Date: 2004-09-01
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since ONU 110-2 continuously transmits erroneous ONU2 data beyond the predetermined time, this results in a data collision in the third period in which ONU3 110-3 is allowed to transmit ONU3 data frames
As a result, if such data collisions occur continuously, the transmission of the entire GE-PON cannot be performed

Method used

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  • Method and device for transmitting data in giga ethernet passive optical network
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  • Method and device for transmitting data in giga ethernet passive optical network

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Embodiment Construction

[0018] Now, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. For the purpose of clarity and simplicity, detailed descriptions of known functions and constructions employed herein are omitted when it makes the subject matter of the present invention unclear.

[0019] figure 1 Shown is a structural block diagram of GE-PON to which the present invention is applied. As shown in the figure, the GE-PON includes an OLT 100, a plurality of ONUs 110-1 to 110-3 connected to the OLT 100, and a plurality of end users (network devices) 120 respectively communicating with the ONUs 110-1 to 110-3 -1 to 120-3. Although in figure 1 For exemplary purposes, a limited number of ONUs is shown, and it can be understood that GE-PON can support simultaneous communication between a larger number of ONUs. Therefore, the number of ONUs in the figure does not impose a limitation on the scope of the present invention.

[0020] In ...

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Abstract

A method and apparatus for transmitting data from an optical network unit (ONU) to an optical line termination (OLT) in a Gigabit Ethernet passive optical network (GE-PON) on the basis of a time division multiple access (TDMA) scheme are provided. A measurement of a data transmission time when the data is transmitted to the OLT is obtained, and the measured data transmission time is compared with a predetermined normal transmission time. The transmission of the data is maintained if the measured data transmission time is determined to be less than or equal to the normal transmission time from the comparison result. However, if the measured data transmission time is determined to be greater than the normal transmission time, the transmission of the data is stopped.

Description

technical field [0001] The present invention relates to a Gigabit Ethernet Passive Optical Network (GE-PON), and more particularly, to a device for transmitting data from an Optical Network Unit (OUN) to an Optical Line Terminal (OLT) in a GE-PON and methods. Background technique [0002] figure 1 Shown is the configuration of GE-PON standardized in IEEE802.3ah EFM to which the present invention is applicable. As shown, a plurality of ONUs 110 - 1 , 110 - 2 and 110 - 3 are configured to communicate with one OLT 100 . During the downlink transmission from OLT 100 to ONUs 110-1, 110-2 and 110-3, OLT 100 broadcasts data to all ONUs 110-1, 110-2 and 110-3, and configures ONUs 110-1, 110-2 and 110-3 to receive required data from OLT 100. However, in the upstream transmission from the ONUs 110-1, 110-2, and 110-3 to the OLT 100, the ONUs 110-1, 110-2, and 110-3 transmit frames to the OLT 100 based on a Time Division Multiple Access (TDMA) scheme . [0003] refer to Figure ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/00H04B10/079H04B10/2507H04B10/272H04B10/524H04B10/556H04B10/564H04J3/06H04J3/16H04J14/08
CPCH04Q2011/0064H04L47/10H04J3/0682H04Q2011/0081H04L47/283H04L47/263H04Q11/0067H04J3/1694
Inventor 宋在涓金镇熙林世伦李宗和李伦宣权瑞远尹钟浩
Owner SAMSUNG ELECTRONICS CO LTD
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