公开(公告)号：KR1020010025968A

公开(公告)日：2001-04-06

申请号：KR1019990037076

申请日：1999-09-02

Applicant: 한국전자통신연구원

Inventor： 채종억 ,  조효기 ,  문옥배 ,  조규남 ,  고병도 ,  노장래 ,  김재근

IPC: H04L12/28

Abstract: PURPOSE: A fiber-to-the-user network subscriber interface structure is provided to supply multimedia service as well as existing services, to efficiently utilize network resources, and to construct network subscriber distribution network economically. CONSTITUTION: A HEC examining part(22) examines a HEC(Head Error Check) from a byte stream. A cell border identifying part(21) identifies a cell border through the examined HEC. A downstream reverse-mixture part(23) reversely mixes dispersedly mixed byte stream information of a cell stream and thereafter transmits to a downstream frame processor(30). A BIP(Bit Interleaved Parity) examining part(31) receives the reversely mixed byte stream information for examining BIP. A MUX(32) separates a user cell and a PLOAM(Physical Layer Operation and Maintenance cell) from the examined BIP. A 3 cell FIFO(52) transmits the separated user cell to an ATM process function part. A downstream utopia interface part transmits message information within payload of the separated PLOAM to a message FIFO and transmits network information to a timing controller. A RAU buffer store the number of cells detected a processor of a cell butter by making as RAU message. A upstream utopia interface receives user cell from an ATM layer controller. A three cell FIFO memory stores user slot. A PLOAM buffer stores PLOAM. A RAU buffer stores RAU message. A HEC calculation insertion part(64) inserts calculated HEC of a cell header of the cell. A BIP calculation insertion part(63) receives the calculated HEC for calculating BIP to the byte stream and inserting. A upstream mixture part receives the calculated BIP for mixing the cells. A phone header insertion part adds a phone header to the mixed cells. A parallel/series processor(15) converts the phone cell into series bit stream. A bit delay processor delays the converted stream by bit units. A burst optical transmitter(13) multiplexes the bit-delayed stream with a downstream signal for transmitting to a network interface part.

Abstract translation: 目的：提供光纤到用户网络用户接口结构，提供多媒体业务和现有业务，有效利用网络资源，经济地构建网络用户分布网络。 构成：HEC检查部分（22）从字节流检查HEC（头错误检查）。 细胞边界识别部分（21）通过检查的HEC识别细胞边界。 下游反向混合部分（23）反向混合单元流的分散混合字节流信息，然后发送到下游帧处理器（30）。 BIP（比特交错奇偶校验）检查部分（31）接收用于检查BIP的反向混合字节流信息。 MUX（32）将用户单元和PLOAM（物理层操作和维护单元）与检查的BIP分离。 3单元FIFO（52）将分离的用户单元发送到ATM处理功能部件。 下游乌托邦接口部分将分离的PLOAM的有效载荷内的消息信息发送到消息FIFO，并将网络信息发送到定时控制器。 RAU缓冲器通过制作RAU消息来存储检测到细胞黄油的处理器的细胞数量。 上游乌托邦界面从ATM层控制器接收用户信元。 三个单元格FIFO存储器存储用户插槽。 PLOAM缓冲存储PLOAM。 RAU缓冲区存储RAU消息。 HEC计算插入部分（64）插入单元格的单元格标题的计算HEC。 BIP计算插入部分（63）接收用于计算BIP到字节流并插入的计算出的HEC。 上游混合部分接收用于混合细胞的计算BIP。 电话头插入部分将电话头添加到混合单元。 并行/串联处理器（15）将电话单元转换为串行比特流。 位延迟处理器以位为单位延迟转换流。 突发光发射机（13）将比特延迟流与下行信号进行复用，以将其发送到网络接口部分。

公开(公告)号：KR100346793B1

公开(公告)日：2002-08-03

申请号：KR1019990037076

申请日：1999-09-02

Applicant: 한국전자통신연구원

Inventor： 채종억 ,  조효기 ,  문옥배 ,  조규남 ,  고병도 ,  노장래 ,  김재근

IPC: H04L12/28

Abstract: 본발명은수동광스플리터를사용하여점대다중점접속이가능한수동광네트워크의가입자측기능을갖는광가입자망가입자정합부구조에관한것으로서, 수동광소자를기반으로하는광가입자망에있어전송방향에따라구분되어각각프레임및 라인처리부로나뉘어져이루어진상향및 하향처리부를포함하여구성함으로써, 가입자댁내까지광화하기위하여가장경제적인기술인수동광네트워크를활용하여기존서비스뿐만아니라멀티미디어서비스제공이가능하고, 하향과상향대역폭을비대칭으로제공함으로써보다효율적으로망자원을활용할수 있으며, 광소자의수를획기적으로줄일수 있기때문에경제적으로망 가입자분배망을구축할수 있는효과를가진다.