公开(公告)号：KR1020030073482A

公开(公告)日：2003-09-19

申请号：KR1020020013060

申请日：2002-03-11

Applicant: 삼성전자주식회사

Inventor： 송재연 ,  오윤제 ,  박태성 ,  김아정 ,  원신희 ,  이민효 ,  김수형

IPC: H04L12/28

CPC classification number: H04Q11/0067 ,  H04Q11/0066 ,  H04Q2011/0064 ,  H04Q2011/0086

Abstract: PURPOSE: A method for allocating transmission bandwidths in a GE-PON(Gigabit Ethernet Passive Optical Network) is provided to offer a scheduling method to allocate bandwidths to ONUs(Optical Network Units) so as to transmit data to an OLT(Optical Line Transmission), in a point to multi-point structured GE-PON system which is composed of one OLT and a plurality of ONUs connected to the OLT through an ODN(Optical Distribution Network). CONSTITUTION: Cycle 1 starts at T2. BW request signals, transmitted from ONUs(22i-22l), arrive at an OLT(20). The scheduler of cycle 1 is driven at T3 and works up to T4. The scheduler executes a scheduling procedure only for BW request signals(403,405,407) arriving at the OLT(20) from T0 to T3. A scheduling result between T3 and T4 is allocated to a band of cycle 2. If the scheduling procedure ends at T4, the OLT(20) combines the scheduling result to a grant signal(411) and transmits it to each ONU. Each ONU transmits the data of a buffer to the OLT(20) as much as each allocated time at each allocated hour according to the scheduling result contained in the received grant signal(411).

Abstract translation: 目的：提供一种在GE-PON（千兆以太网无源光网络）中分配传输带宽的方法，为ONU（Optical Network Unit，光网络单元）分配带宽以便向OLT（光线路传输）发送数据， 涉及由一个OLT和通过ODN（Optical Distribution Network）连接到OLT的多个ONU组成的多点结构的GE-PON系统。 构成：循环1从T2开始。 从ONU（22i-22l）发送的BW请求信号到达OLT（20）。 周期1的调度器在T3被驱动并且工作到T4。 调度器仅对从T0到T3到达OLT（20）的BW请求信号（403,405,407）执行调度过程。 T3和T4之间的调度结果被分配给周期2的频带。如果调度过程在T4结束，则OLT（20）将调度结果组合到授权信号（411）并将其发送到每个ONU。 每个ONU根据包含在接收到的授权信号（411）中的调度结果，将每个分配的小时的每个分配时间的缓冲区的数据发送到OLT（20）。