公开(公告)号：KR100456675B1

公开(公告)日：2004-11-10

申请号：KR1020020074121

申请日：2002-11-26

Applicant: 한국전자통신연구원

Inventor： 김승환 ,  유태환 ,  이형호

IPC: H04L29/06

CPC classification number: H04L1/0061 ,  H04L1/0072 ,  H04L69/08 ,  H04L69/32 ,  H04Q11/0066 ,  H04Q11/0067 ,  H04Q11/0071 ,  H04Q2011/0064

Abstract: A method and apparatus for processing Ethernet data frames in a media access control (MAC) sublayer of an Ethernet passive optical network (PON) are provided. The apparatus for processing protocol layers of an Ethernet passive optical network (PON) includes: an Emulation sublayer processing unit which performs cyclic redundancy check (CRC) on information included in a preamble of an Ethernet data frame transferred from a physical layer processing unit, and extracts LLIDs from the preamble; a MAC sublayer processing unit, which has one MAC address corresponding to multiple LLID indexes corresponding to the extracted LLIDs, to perform control and management; a MAC control sublayer processing unit which contains information of the multiple LLID indexes, and performs MAC control on each LLID index; a PON bridge sublayer processing unit which performs a bridge function of the Ethernet PON and tag management of the Ethernet PON; and an Emulated-MAC sublayer processing unit which performs upstream and downstream Ethernet data frame matching, FCS error checking, and PAUSE frame processing. Therefore, an effect exists in that when processing the Ethernet frames, an interface suited to the Ethernet PON system is provided.

Abstract translation: 提供了用于处理以太网无源光网络（PON）的媒体访问控制（MAC）子层中的以太网数据帧的方法和装置。 用于处理以太网无源光网络（PON）的协议层的设备包括：仿真子层处理单元，其对从物理层处理单元传输的以太网数据帧的前导码中包括的信息执行循环冗余校验（CRC）;以及 从前导中提取LLID; MAC子层处理单元，其具有对应于与所提取的LLID相对应的多个LLID索引的一个MAC地址以执行控制和管理; MAC控制子层处理单元，其包含所述多个LLID索引的信息，并且对每个LLID索引执行MAC控制; PON桥接器子层处理单元，其执行以太网PON的桥接功能和以太网PON的标签管理; 以及执行上行和下行以太网数据帧匹配，FCS错误检查和暂停帧处理的仿真-MAC子层处理单元。 因此，在处理以太网帧时存在适合于以太网PON系统的接口。

公开(公告)号：KR100454813B1

公开(公告)日：2004-11-03

申请号：KR1020020054130

申请日：2002-09-09

Applicant: 한국전자통신연구원

Inventor： 홍강운 ,  이형섭 ,  이형호

IPC: H04L12/28

CPC classification number: H04L45/00

Abstract: The present invention provides a dynamic routing method for a multistage bus network in a distributed shared memory environment. For performing a forward or backward U-turn routing (FUR or BUR), the forward or backward-turning allowable stage, respectively for FUR or BUR, is compared with a current stage check whether a U-turn is possible in the current stage. If not affirmative, traffic levels of switches in its next or previous stage connected to a switch in the current stage are compared to each other, respectively for FUR or BUR. A switch having the lowest traffic level is selected as a route switch of the next or previous stage, and the next or previous stage is changed to a current stage, respectively for FUR or BUR. The procedure is repeated from the checking step. If affirmative, a U-turn at the current stage is performed, and a backward or forward routing is performed, respectively for FUR or BUR.

Abstract translation: 本发明提供了一种用于分布式共享存储器环境中的多级总线网络的动态路由方法。 为了执行前向或后向U形转弯路线选择（FUR或BUR），分别将FUR或BUR的前进或后退转弯允许阶段与当前阶段进行比较，以检查当前阶段是否可能掉头。 如果不是肯定的，则将与当前阶段中的交换机连接的下一级或前级中的交换机的流量水平分别彼此比较，以用于FUR或BUR。 具有最低业务级别的交换机被选择作为下一级或前级的路由交换机，并且下一级或前级分别改变为当前级，用于FUR或BUR。 该过程从检查步骤重复。 如果是肯定的，则执行当前阶段的U形转弯，并分别执行FUR或BUR的后退或前进路线。

公开(公告)号：KR100448635B1

公开(公告)日：2004-09-13

申请号：KR1020020074517

申请日：2002-11-27

Applicant: 한국전자통신연구원

Inventor： 강호용 ,  유태환 ,  이형호

IPC: H04L12/413

CPC classification number: H04Q11/0067 ,  H04Q11/0071 ,  H04Q2011/0047

Abstract: A communication node system for an Ethernet-PON includes: an LLID register for storing an LLID being an allocated identifier; a preamble generator for generating a PON preamble; a CRC generator for generating a CRC for the preamble; a transmission connector for combining transport data with the CRC-including preamble to generate a transport frame, and forwarding the transport frame; a reception connector for receiving the frame and dividing the frame into a preamble and received data; a filter for extracting an LLID from the preamble, comparing the extracted LLID with the LLID stored in the register, and selectively filtering the extracted LLID; and a received frame generator for discarding the received data, or combining the received data with the preamble to generate a received frame.

Abstract translation: 用于以太网-PON的通信节点系统包括：LLID寄存器，用于存储作为分配的标识符的LLID; 前导码生成器，用于生成PON前导码; CRC生成器，用于为所述前导码生成CRC; 传输连接器，用于将传输数据与所述包含CRC的前导码组合以生成传输帧，并且转发所述传输帧; 接收连接器，用于接收该帧并将该帧分成前导码和接收数据; 过滤器，用于从前导码中提取LLID，将提取的LLID与存储在寄存器中的LLID进行比较，并选择性地过滤提取的LLID; 以及接收帧生成器，用于丢弃接收到的数据，或者将接收到的数据与前导码组合以生成接收到的帧。

公开(公告)号：KR1020040056470A

公开(公告)日：2004-07-01

申请号：KR1020020082854

申请日：2002-12-23

Applicant: 한국전자통신연구원

Inventor： 김병휘 ,  이형호

IPC: H04L12/28

CPC classification number: H04J14/0227 ,  H04J14/0241 ,  H04J14/0246 ,  H04J14/0282 ,  H04J14/0283 ,  H04Q11/0066 ,  H04Q11/0067 ,  H04Q11/0071 ,  H04Q2011/0077

Abstract: PURPOSE: An optical communication node system, electrophoto packet routing system, an optical packet electrophoto-routing method using the same, and an optical packet electrophoto-routing network system are provided to electrophoto-route an optical packet by an identifier made up of multiple optical wavelengths. CONSTITUTION: An optical frame generating and wavelength multiplexing unit(10) generates data and primitive code and multiplexes wavelengths. An optical switching unit(20) selects coding. A coding unit(30) codes the primitive identifier according to a selected method and attaches the coded identifier to data to generate an optical packet. An optical amplifier(40) controls strength of the optical packet and amplifies it in order to output a finally processed optical packet according to predetermined optical power.

Abstract translation: 目的：提供光通信节点系统，电子包分组路由系统，使用该组件的光分组电路布线方法和光分组电路布线网络系统，以通过由多个光学 波长。 构成：光学帧生成和波长多路复用单元（10）产生数据和原始码并复用波长。 光开关单元（20）选择编码。 编码单元（30）根据所选择的方法对原始标识符进行编码，并将编码的标识符附加到数据以生成光学分组。 光放大器（40）控制光分组的强度并放大，以便根据预定的光功率输出最后处理的光分组。

公开(公告)号：KR1020040048526A

公开(公告)日：2004-06-10

申请号：KR1020020076373

申请日：2002-12-03

Applicant: 한국전자통신연구원

Inventor： 이상재 ,  박광로 ,  송영준 ,  이형호

IPC: H04L12/66

CPC classification number: H04M11/062 ,  H04L12/2803 ,  H04L12/2838 ,  H04L12/2856 ,  H04L12/2889 ,  H04L2012/2845 ,  H04M7/0069 ,  H04Q2213/13034 ,  H04Q2213/13039 ,  H04Q2213/13196 ,  H04Q2213/13389

Abstract: PURPOSE: A home gateway system having a premises telephone network switching function and a method for implementing the same are provided to construct a home VoIP/POTS(Plain Old Telephone Service) network and a high-speed HomePNA(Home Phoneline Networking Alliance) network, regardless of telephone lines, by modifying the internal connection structure of a home gateway through a premises telephone network switching function according to the configuration of a home network. CONSTITUTION: A home gateway system(300) having a premises telephone network switching function comprises an xDSL central processing part(302), a VoIP processing part(304), a HomePNA processing part(306), and a phoneline switching part(303). The xDSL central processing part(302) provides a connection with an access network through the first connector(301) and processes the signals transmitted and received with the connected access network. The VoIP processing part(304) provides a POTS/VoIP connection with a home network through the first connector(301) or the third connector(307) and processes the POTS/VoIP signals with the connected home network. The HomePNA processing part(306) provides a HomePNA connection with a home network through the first connector(301) or the second connector(305) and processes the HomePNA signals transmitted and received with the connected home network. The phoneline switching part(303) connects the VoIP processing part(304) and the HomePNA processing part(306) properly to various PSTN lines received from the xDSL central processing part(302).

Abstract translation: 目的：提供具有房屋电话网络切换功能的家庭网关系统及其实现方法，以构建家庭VoIP / POTS（普通老式电话服务）网络和高速HomePNA（家庭电话网络联盟）网络， 通过根据家庭网络的配置通过房屋电话网络切换功能来修改家庭网关的内部连接结构，而不管电话线路。 构成：具有房屋电话网络切换功能的家庭网关系统（300）包括xDSL中央处理部（302），VoIP处理部（304），HomePNA处理部（306）和电话线切换部（303） 。 xDSL中央处理部分（302）通过第一连接器（301）提供与接入网络的连接，并处理与连接的接入网络发送和接收的信号。 VoIP处理部分（304）通过第一连接器（301）或第三连接器（307）提供与家庭网络的POTS / VoIP连接，并且处理与连接的家庭网络的POTS / VoIP信号。 HomePNA处理部分（306）通过第一连接器（301）或第二连接器（305）提供与家庭网络的HomePNA连接，并处理与所连接的家庭网络发送和接收的HomePNA信号。 话音切换部（303）将VoIP处理部（304）和HomePNA处理部（306）适当地连接到从xDSL中央处理部（302）接收的各种PSTN线。

公开(公告)号：KR1020040046423A

公开(公告)日：2004-06-05

申请号：KR1020020074351

申请日：2002-11-27

Applicant: 한국전자통신연구원

Inventor： 김찬 ,  김승환 ,  유태환 ,  이형호

IPC: H04L1/00

CPC classification number: H03M13/091

Abstract: PURPOSE: A CRC test system having a fixed delay period is provided to measure a round-trip time according to each ONU(Optical Network Unit) by setting constantly a delay period for processing a received data frame. CONSTITUTION: A CRC test system having a fixed delay period includes a data buffer, a control information buffer, a CRC generation unit, an input control unit, and an output control unit. The data buffer(230) is used for storing a data frame. The control information buffer(240) is used for storing control information of the data frame. The CRC generation unit(220) performs a CRC test for the data frame. The input control unit(210) receives an input signal, generates a CRC enable signal to the CRC generation unit, transmits the write address information to the data buffer and the control information buffer, stores a CRC test result into an address for storing a starting part of the data frame, and provides a read address synchronous signal. The output control unit(250) receives the read address synchronous signal, generates the read address information to the data buffer and the control information buffer, reads the stored data of the data buffer, and outputs an output control signal according to the CRC test result.

Abstract translation: 目的：提供具有固定延迟周期的CRC测试系统，通过不断设置用于处理接收到的数据帧的延迟周期来测量根据每个ONU（光网络单元）的往返时间。 构成：具有固定延迟周期的CRC测试系统包括数据缓冲器，控制信息缓冲器，CRC生成单元，输入控制单元和输出控制单元。 数据缓冲器（230）用于存储数据帧。 控制信息缓冲器（240）用于存储数据帧的控制信息。 CRC生成单元（220）对数据帧进行CRC测试。 输入控制单元（210）接收输入信号，向CRC生成单元生成CRC使能信号，将写入地址信息发送到数据缓冲器和控制信息缓冲器，将CRC测试结果存储到存储起始地址 部分数据帧，并提供读地址同步信号。 输出控制单元（250）接收读取地址同步信号，产生读取的地址信息给数据缓冲器和控制信息缓冲器，读取数据缓冲器的存储数据，并根据CRC测试结果输出输出控制信号 。

公开(公告)号：KR1020040046276A

公开(公告)日：2004-06-05

申请号：KR1020020074121

申请日：2002-11-26

Applicant: 한국전자통신연구원

Inventor： 김승환 ,  유태환 ,  이형호

IPC: H04L29/06

CPC classification number: H04L1/0061 ,  H04L1/0072 ,  H04L69/08 ,  H04L69/32 ,  H04Q11/0066 ,  H04Q11/0067 ,  H04Q11/0071 ,  H04Q2011/0064

Abstract: PURPOSE: A method and an apparatus for processing ethernet data in an MAC(Medium Access Control) sub-layer of an ethernet PON(Passive Optical Network) are provided to manage a transmitting state and a receiving state of an ethernet frame by using an LLID index. CONSTITUTION: An apparatus for processing ethernet data in an MAC sub-layer of an ethernet PON includes an emulation sub-layer, an MAC sub-layer, an MAC control sub-layer, a PON bridge sub-layer, and an emulated-MAC sub-layer. The emulation sub-layer(150) is used for performing a CRC for information of a preamble of an ethernet data frame received from a physical layer and extracting LLID(Logical Link IDentification) information from the preamble. The MAC sub-layer is used for performing a controlling operation and a managing operation. The MAC control sub-layer is used for performing MAC control operations for LLID indexes. The PON bridge sub-layer(120) is used for performing a bridge function of the ethernet PON and a PON tag management function. The emulated-MAC sub-layer(110) is used for performing a high and a low ethernet data frame matching process, an FCS test, and a PAUSE frame process.

Abstract translation: 目的：提供一种用于处理以太网PON（无源光网络）的MAC（介质访问控制）子层中的以太网数据的方法和装置，以通过使用LLID来管理以太网帧的发送状态和接收状态 指数。 构成：用于处理以太网PON的MAC子层中的以太网数据的装置包括仿真子层，MAC子层，MAC控制子层，PON桥子层和仿真MAC 子层。 仿真子层（150）用于对从物理层接收的以太网数据帧的前同步码的信息执行CRC，并从前导码提取LLID（逻辑链路标识）信息。 MAC子层用于执行控制操作和管理操作。 MAC控制子层用于对LLID索引执行MAC控制操作。 PON桥接子层（120）用于执行以太网PON的桥接功能和PON标签管理功能。 仿真MAC子层（110）用于执行高和低以太网数据帧匹配过程，FCS测试和暂停帧过程。

公开(公告)号：KR1020040045963A

公开(公告)日：2004-06-05

申请号：KR1020020073732

申请日：2002-11-26

Applicant: 한국전자통신연구원

Inventor： 남홍순 ,  이형섭 ,  이형호

IPC: H04L12/42

CPC classification number: H04L47/10 ,  H04L12/42 ,  H04L47/15 ,  H04L47/283 ,  H04L47/70 ,  H04L47/724 ,  H04L47/805 ,  H04L47/822 ,  H04L47/825 ,  H04L47/826 ,  H04L47/829

Abstract: PURPOSE: A resource allocation method in consideration of load distribution and fairness providing in a dual ring is provided to increase a resource usage rate by distributing a path in consideration of currently an available bandwidth and priority of requested traffic. CONSTITUTION: A bandwidth request message is received(601). A node determines whether to admit the request by checking available bandwidths of two rings, and if the request is admittable, the node calculates a WC(Weight Cost), or otherwise, the node sets the WC to infinite(602). If both WCs of external and internal rings exceed a certain value, the node determines that there is no available band and rejects allocation of bandwidth(603). If both WCs of the external and internal rings are not infinite, the node compares which side is smaller(604). the node distributes a path to the side having a smaller WC(605). The node increases a serial number(606) and broadcasts the distribution result to other nodes(607).

Abstract translation: 目的：提供考虑到双环中的负载分配和公平性提供的资源分配方法，以通过考虑当前所请求业务的可用带宽和优先级来分发路径来增加资源使用率。 构成：接收带宽请求消息（601）。 节点通过检查两个振铃的可用带宽来确定是否允许该请求，并且如果该请求是可延迟的，则该节点计算WC（Weight Cost），否则该节点将WC设置为无限大（602）。 如果外部和内部环的两个WC都超过一定值，则节点确定没有可用的频带并拒绝带宽分配（603）。 如果外部和内部环的两个WC都不是无限的，则节点比较哪一侧较小（604）。 节点向具有较小WC（605）的一侧分配路径。 节点增加序列号（606），并将分发结果广播到其他节点（607）。

公开(公告)号：KR100429907B1

公开(公告)日：2004-05-03

申请号：KR1020020025629

申请日：2002-05-09

Applicant: 한국전자통신연구원

Inventor： 이형섭 ,  주운기 ,  이형호

IPC: H04L12/28

Abstract: PURPOSE: A router and routing method for unicast/multicast packet services is provided not only to offer an efficient multicast packet connection service but also to minimize the whole packet connection service processing time on account of the reduction of a unicast connection service throughput by developing a router structure using one cross-bar switch for a unicast packet connection service and a plurality of buses for a multicast packet connection service. CONSTITUTION: In an idle state, a high-speed router confirms whether a new packet has been received or a standby packet has been outputted(510,520). If a new packet has been received to the VOQ(Virtual Output Queue) j of an input port(i), the high-speed router updates a packet state information message into NumPacket£i|£j|=NumPacket £i|£j|+1(521). If a packet has been outputted from a VOQ, the high-speed router updates the packet state information message into NumPacket£i|£j|=NumPacket£i| £j|-1(521). However, in case that it is judged that scheduling time came, not the arrival of a new packet or the output of a packet, the high-speed router executes packet connection scheduling by using the packet state information message(530).

Abstract translation: 目的：单播/多播分组服务的路由器和路由方法不仅提供有效的多播分组连接服务，而且由于通过开发一种单播/多播分组服务来降低单播连接服务吞吐量，从而使整个分组连接服务处理时间最小化 路由器结构使用一个用于单播分组连接服务的交叉开关和用于多播分组连接服务的多个总线。 构成：在空闲状态下，高速路由器确认是否收到新的分组或已经输出了备用分组（510,520）。 如果一个新的分组已经被接收到输入端口（i）的VOQ（虚拟输出队列）j，则高速路由器将分组状态信息消息更新为NumPacket＆nbsp;＆lt; i |＆gt; j | = NumPacket＆ ＆磅;Ĵ| +1（521）。 如果一个数据包已经从VOQ输出，则高速路由器将数据包状态信息消息更新为NumPacket＆nbsp; | | | | | NumPacket＆pound; i | ＆磅;Ĵ| -1（521）。 然而，如果判断出调度时间到来，则不是新分组的到来或分组的输出，高速路由器通过使用分组状态信息消息来执行分组连接调度（530）。

公开(公告)号：KR1020040033866A

公开(公告)日：2004-04-28

申请号：KR1020020063150

申请日：2002-10-16

Applicant: 한국전자통신연구원

Inventor： 이종국 ,  정해원 ,  이형호

IPC: H04L12/28

CPC classification number: H04L12/4691 ,  H04L12/185 ,  H04L12/4641

Abstract: PURPOSE: An IP multicast servicing method using a virtual LAN is provided to introduce a VLAN(Virtual LAN) where a lower layer is supported on an IP multicast, and to supply an IP multicast service at a desired speed through a very high speed network, thereby reducing burden of a network equipment while transmitting packets without processing an upper layer. CONSTITUTION: A sender(41) generates a multicast group(501), and requests group management of an IP multicast/VLAN manager(42) through an IGMP(Internet Group Management Protocol)(502). The IP multicast/VLAN manager(42) admits or rejects the request(503). If the IP multicast/VLAN manager(42) admits the request(503-2), the sender(41) broadcasts a multicast session to hosts(504). The IP multicast/VLAN manager(42) stores a VLAN ID within a range of receiving an SDP(Session Description Protocol)(505). If a host wants to participate in the multicast group, the host applies for a participation to the IP multicast/VLAN manager(42)(506,507). The IP multicast/VLAN manager(42) forms a new VLAN with the stored VLAN ID(508), and transmits a participation message in IP multicast method(509).

Abstract translation: 目的：提供一种使用虚拟局域网的IP组播服务方式，以引入IP组播支持较低层的VLAN（Virtual LAN），并通过非常高速的网络提供所需速度的IP组播服务， 从而在不处理上层的同时传送分组的同时减轻网络设备的负担。 构成：发送方（41）生成多播组（501），并通过IGMP（因特网组管理协议）（502）请求IP多播/ VLAN管理器（42）的组管理。 IP组播/ VLAN管理器（42）承认或拒绝该请求（503）。 如果IP组播/ VLAN管理器（42）承认请求（503-2），则发送方（41）向主机广播多播会话（504）。 IP组播/ VLAN管理器（42）在接收到SDP（会话描述协议）（505）的范围内存储VLAN ID。 如果主机想要参与组播组，则主机向IP组播/ VLAN管理器（42）提交参与（506,507）。 IP组播/ VLAN管理器（42）与存储的VLAN ID（508）形成新的VLAN，并在IP组播方式（509）中发送参与消息。