公开(公告)号：KR1020070062341A

公开(公告)日：2007-06-15

申请号：KR1020050122162

申请日：2005-12-12

Applicant: 삼성전자주식회사

Inventor： 이재용 ,  김재현 ,  연훈제 ,  김유근 ,  김병훈 ,  박태성 ,  박정원 ,  김종국 ,  김수형 ,  김동근 ,  박재영

IPC: H04L12/28 ,  H04L29/02

CPC classification number: H04J3/1694 ,  H04J14/0226 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282

Abstract: A GPON(Gigabit-capable Passive Optical Network) system and a band allocation method in the GPON system are provided to guarantee an uplink channel transmission according to T-CONT(Traffic-Container) priority in a congested situation in a short term, and prevent traffic congestion of a network in a long term. A variable 'i' indicating an ONU(Optical Network Unit) is set as 1 and initialization is performed(S401). An OLT(Optical Line Termination) receives a request for allocating a bandwidth from the ONUi, checks whether the allocation-requested bandwidth is greater than a minimum bandwidth of the corresponding ONUi(S402), and allocates a bandwidth as much as requested by ONUi(S403). It is checked whether the value 'i' is the same as the number of entire ONUs(S404). When the value 'i' is the same as the number of the entire ONUs, a variable 'k' indicating the ONU is set as 1(S406). An OLT checks whether there is an extra bandwidth and whether there is a T-CONT to which bandwidth has not been allocated(S407), and if so, a weight value of each T-CONT class, a weight value of each ONU in accordance with a rate of each T-CONT buffer queuing, and an allocation band of each T-CONT class of each ONU are calculated(S408). Each ONU is given a priority level according to its weight value(S409), and the band calculated by each ONU is allocated, starting from the ONU having the highest priority level(S410). It is checked whether the variable 'K' indicating numbers of ONUs is the same as the number of the entire ONUs(S411). When dynamic allocation for the ONUs is completed, the allocated result is transmitted to each ONU(S413).

Abstract translation: 提供GPON系统中的GPON（千兆位无源光网络）系统和频带分配方法，以保证在短时间内拥塞的情况下根据T-CONT（Traffic-Container）优先级的上行链路信道传输，并防止 长期以来网络交通拥堵。 指示ONU（光网络单元）的变量“i”被设置为1并执行初始化（S401）。 OLT（Optical Line Termination，光线路终端）接收从ONUi分配带宽的请求，检查分配请求带宽是否大于对应ONUi的最小带宽（S402），并分配ONUi所要求的带宽（ S403）。 检查值“i”是否与整个ONU的数量相同（S404）。 当值“i”与整个ONU的数量相同时，指示ONU的变量“k”被设置为1（S406）。 OLT检查是否存在额外的带宽以及是否存在尚未分配带宽的T-CONT（S407），如果是，则每个T-CONT类的权重值，每个ONU的权重值根据 每个T-CONT缓冲器排队的速率，并且计算每个ONU的每个T-CONT类别的分配频带（S408）。 每个ONU根据其权重值被给予优先级（S409），并且从具有最高优先级的ONU开始分配由每个ONU计算的频带（S410）。 检查指示ONU数量的变量“K”是否与整个ONU的数量相同（S411）。 当ONU的动态分配完成后，将分配的结果发送给每个ONU（S413）。

公开(公告)号：KR1020070060368A

公开(公告)日：2007-06-13

申请号：KR1020050119693

申请日：2005-12-08

Applicant: 삼성전자주식회사

Inventor： 김유근 ,  김병훈 ,  박태성 ,  박정원 ,  김종국 ,  김수형 ,  김동근 ,  박재영 ,  이재용 ,  김재현 ,  연훈제

IPC: H04L12/28 ,  H04B10/27 ,  H04B10/25

CPC classification number: H04J3/1694 ,  H04J14/0226 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282

Abstract: A GPON(Gigabit-capable Passive Optical Network) system and a method for allocating bandwidths therein are provided to efficiently allocate bandwidths in consideration of fairness between ONUs(Optical Network Units) and T-CONT(Traffic-Container) priorities by allocating a minimal bandwidth to each ONU and proportionally assigning an additional bandwidth according to the T-CONT priority of each ONU. An OLT(Optical Line Terminal) sets 'i', a variable indicating the number of ONUs, to '1'(S401). The OLT, receiving a bandwidth allocation request from an ONU, checks whether the requested bandwidth is larger than Min_BWi, the minimum bandwidth of the ONU(S402). If so, the OLT allocates Min_BWi to the ONU(S403). If not, the OLT allocates the requested bandwidth only(S404). Then, the OLT judges whether the value of 'i' is identical to the total number of ONUs within the system(S405). If so, the OLT completes the minimum bandwidth allocation procedures. The OLT sets 'k', a variable indicating T-CONT classes, to '1' in order to start dynamic bandwidth allocation procedures(S407). The OLT requests each ONU to report whether a T-CONT to which a bandwidth hasn't been allocated exists. Confirming that a remaining bandwidth exists and that a T-CONT which a bandwidth hasn't been allocated exists, the OLT calculates a bandwidth to be allocated to 'K', T-CONT classes based on a weight granted to 'k'(S409). The OLT checks whether the value of 'k' reaches the number of the whole T-CONT classes(S410).

Abstract translation: 提供GPON（千兆位无源光网络）系统及其中分配带宽的方法，以通过分配最小带宽来考虑ONU（光网络单元）和T-CONT（业务容器）优先级之间的公平性来有效分配带宽 并根据每个ONU的T-CONT优先级按比例分配附加带宽。 OLT（Optical Line Terminal，光线路终端）将指示ONU数量的变量'i'设置为'1'（S401）。 接收来自ONU的带宽分配请求的OLT检查所请求的带宽是否大于ONU的最小带宽Min_BWi（S402）。 如果是，则OLT将Min_BWi分配给ONU（S403）。 如果不是，OLT仅分配所请求的带宽（S404）。 然后，OLT判断“i”的值是否与系统内的ONU总数相同（S405）。 如果是这样，则OLT完成最小带宽分配过程。 为了开始动态带宽分配过程，OLT将'k'（表示T-CONT类的变量）设置为'1'（S407）。 OLT请求每个ONU报告是否存在尚未分配带宽的T-CONT。 确认剩余带宽存在，并且没有分配带宽的T-CONT存在，OLT根据授予“k”的权重计算分配给“K”，T-CONT等级的带宽（S409 ）。 OLT检查'k'的值是否达到整个T-CONT等级的数量（S410）。