Back to results
US 2009/0154939 A1Published application
Method of allocating bandwidth of passive optical network
AssigneeElectronics and Telecommunications Research Instittute
InventorsTae Yeon Kim, Kang bok Lee, Eui Suk Jung, Jea Hoon Yu, Byoung Whi Kim
Life of this patent
Estimating the term…
Abstract
In a method of allocating a bandwidth of a passive optical network, downward data are transmitted by varying a wavelength based on a wavelength division method and upward data are transmitted using a time division method. Thereby, by efficiently allocating a network bandwidth, data can be transmitted and by realizing statistical multiplexing, transmission efficiency can be improved.
Claims14
A method of allocating a bandwidth of a passive optical network (POT), comprising:
- allocating, by an optical line termination (OLT), a wavelength to a plurality of transmission ports and setting a downward wavelength time period on a wavelength basis;
- transmitting data in units of a packet to a plurality of optical network terminals (ONTs) while changing the wavelength for a first downward wavelength time period using the divided wavelength;
- and
- varying, when the first downward wavelength time period terminates, the wavelength and transmitting data according to the varied wavelength.
1 more element
A method of allocating a bandwidth of a PON, comprising:
- transmitting downward data to a plurality of ONTs through a first wavelength for a downward wavelength time period in which an OLT is set and receiving upward data and a report message from the plurality of ONTs through the first wavelength;
- setting a downward wavelength time period of a second wavelength according to the report message and a wavelength band allocation reference and allocating a bandwidth of upward transmission based on the downward wavelength time period;
- and
- transmitting a gate message including downward data and the changed bandwidth information of upward transmission to the plurality of ONTs through the second wavelength for the preset downward wavelength time period.
1 more element
Dependencies are inferred from the claim text.