Abstract:
Disclosed are a DMX-VLC address processing method using a DMX-512 network and an apparatus using the DMX-512 network. According to the present invention, the DMX-VLC address processing method comprises: a step of receiving a DMX-512 packet; a step of determining whether the DMX-512 packet is included in a light step data using a start code of the DMX-512 packet; a step of processing the light data using an address recorded in the DMX-512 address unit of the DMX-VLC address included in the DMX-512 packet when the DMX-512 packet is included in the light step data; and a step of executing a non-light data process using the address recorded in the DMX-VLC extension address unit of the DMX-VLC address when the DMX-512 packet is not included in the light step data.
Abstract:
Disclosed are a method for transceiving packets for traffic distribution, and an access point and a terminal apparatus using the same. The access point according to the present invention includes a wireless LAN communications module; a visible light communications module; and a traffic distribution unit to confirm a characteristic of a packet to be transmitted for determining whether the packet is a control packet or a data packet, to classify and transmit the packet using the wireless LAN communications module when the packet is the control packet or a data packet of low capacity, to classify and transmit the packet using the visible light communications module when the packet is a multi-media or a data packet of high capacity.
Abstract:
PURPOSE: A service recommendation system and a method thereof are provided to recommend a service in consideration of the characteristic of a user and to reduce the burden of re-work of a user. CONSTITUTION: A service recommending unit(150) supplies a recommendation service list to a user. A user recommend list generating unit through service static information. The user recommend list generating unit generates a user recommend service list about the user.
Abstract:
무선 통신망에서 서비스 품질을 유지하는 자원 할당 장치 및 방법에 관한 것으로, 수퍼 프레임의 복수의 분할된 영역(zone)들 중 일부에 할당할 매체 접근 슬롯(MAS : Medium Access Slot)의 수를 산출하는 단계; 상기 산출된 매체 접근 슬롯의 수에 따라, 상기 수퍼 프레임 내에서 상기 매체 접근 슬롯이 할당될 기준 위치를 상기 복수의 분할된 영역들 중에서 지정하는 단계; 및 상기 지정된 기준 위치 정보에 기초하여 상기 매체 접근 슬롯을 할당하는 단계;를 포함하는 것을 특징으로 하는 무선 자원 할당 방법에 의해 보다 균등한 서비스 인터벌을 지원할 수 있기 때문에 MAC 기반에서 요구되는 QoS 조건을 만족시킬 수 있도록 효율적인 매체 접근 슬롯 자원의 할당을 수행할 수 있다. MAS, MAC, 자원 할당, TSPEC
Abstract:
A channel change method in an IPTV(Internet Protocol TV) and a system therefor are provided to reduce the loss of a bandwidth of a network and change a channel at high speed in IPTV environment by previously registering a plurality of viewing candidate channels in a router through the correction of an existing IGMP(Internet Group Management Protocol) message. Routers(106,107) receive a channel change request of a user in IPTV environment and previously register viewing candidate channels. An Internet broadcasting server(108) previously transmits broadcasting packets of the viewing candidate channels to the routers. When a channel whose change is requested by the user is included in the previously registered candidate channels, the routers transmit the corresponding broadcasting packet to a set-top box(101) of the user.
Abstract translation:提供了一种IPTV(因特网协议电视)及其系统中的信道改变方法,以减少网络带宽的损失,并通过先前在路由器中注册多个观看候选信道来改变IPTV环境中的高速信道 通过修正现有的IGMP(Internet Group Management Protocol)消息。 路由器(106,107)在IPTV环境中接收用户的频道改变请求,并且先前注册观看候选频道。 互联网广播服务器(108)先前将观看候选频道的广播分组发送给路由器。 当用户请求其改变的信道被包括在先前注册的候选信道中时,路由器将相应的广播分组发送到用户的机顶盒(101)。
Abstract:
본 발명은 장치 내부의 연동망에 분산되어 있는 통신처리 망정합장치들 간의 연동을 통한 통신 서비스의 지원을 위하여 망정합장치들이 접속하고 있는 서비스망들의 정보를 교환하는 방법에 관한 것이다. 이러한 본 발명에 따른 이종망 연동을 위한 서비스망 정보 교환방법은, 통신처리장치 내부 연동 망인 이더넷 망의 멀티캐스트 구조를 이용하여 이더넷 망을 통하여 연동하는 통신처리 망정합장치들 간의 서비스망 정보 교환방법에 있어서, 각 망정합장치의 유형에 따라 각각의 대상 장치들과 송신방법을 정의하는 초기화단계와, 망정합장치의 메시지 송신측은 주기적인 서비스망 정보 메시지를 송신하고, 각 망정합장치의 수신측은 메시지를 송신한 장치들로부터의 메시지 수신시간을 주기적으로 점검하면서 메시지 송신측의 이상유무를 판단하는 메시지송신단계, 및 서비스망 정보 메시지가 수신되면 상기 서비스망 정보를 관리데이터에 복사하는 데이터 복사단계를 포함한 것을 특징으로 한다.
Abstract:
본 발명은 이더넷 기반 수동형 광가입자망에서의 멀티캐스트 서비스 지원 방법에 관한 것으로, 상기 멀티캐스트 서비스 지원 방법은 ONU(Optical Network Unit) 시스템에서 IGMP(Internet Group Management Protocol) 메시지를 모니터링한 결과를 OLT(Optical Line Terminal) 시스템에게 알려줌으로써, OLT 시스템이 PON 포트에서 멀티캐스트 주소와 ONU ID 정보를 이용하여 L2 멀티캐스트 포워딩 정보를 구축하도록 하고, 멀티캐스트 패킷의 수신시 ONU가 기 구축된 L2 멀티캐스트 포워딩 정보를 근거로 하여 해당 가입자에게만 멀티캐스트 패킷을 전송하도록 한다. 그 결과, 복수 개의 ONU 시스템들 중 멀티캐스트 주소 그룹에 속하는 특정 ONU 시스템에게만 멀티캐스트 패킷이 전달될 수 있게 된다.
Abstract:
PURPOSE: A virtual LAN management device in an E-PON(Ethernet-Passive Optical Network) system and a method thereof are provided to accord virtual LAN information managed by ONUs(Optical Network Units) with virtual LAN information managed by a single OLT(Optical Line Terminator), thereby effectively managing an entire network. CONSTITUTION: A virtual LAN setup/controller(110) analyzes a request command of a network operator, which is received from a command interface(400), and sets a virtual LAN for all ports of an OLT(210). A virtual LAN information manager(120) periodically updates, adds, or deletes information within a virtual LAN DB(130) to accord information with the set virtual LAN, and adds or deletes virtual LAN information of ONUs/ONTs(220).
Abstract:
PURPOSE: A method for exchanging and managing routing information between nodes in a heterogeneous network interworking communication system is provided to construct a routing table through routing information obtained from an operation and management system when a node is initialized, to modify routing tables through a periodic exchange of routing information between nodes, and to revise routing tables using modified routing table information provided from operation and management systems. CONSTITUTION: When a node is initialized, the node registers its own node information, such as a system identifier, a network identifier, provider service identifiers, etc(401). The node configures the maximum available channel value for each provider service identifier and sets the number of allocated channels to '0'(402). If the configuration of node information is completed, the node transmits a routing table request message to an operation and management system, receives a routing table response message, and constructs a routing table(403,404). The node creates a routing information transmitting process in order to broadcast a routing information response message periodically(405). Then the node creates a routing information receiving process to receive and process a routing information response message received from each node(406). Finally the node creates a routing table management process that receives a message from the operation and management system and manages the routing table(407).
Abstract:
PURPOSE: A PSTN-Internet interworking processing system and method for Internet voice processing is provided to mutually convert messages between a CCS(Common Channel signaling System) No.7 call setup protocol only used in a PSTN and an H.323 protocol only used in a LAN so that call setup can be achieved between respectively different networks. CONSTITUTION: A PSTN-Internet interworking system(101) for Internet voice processing connects between a PSTN(108) and the Internet(109). The PSTN(108) is connected with a subscriber terminal(106), and the Internet(109) is connected with a subscriber terminal(107) and an H.323 endpoint(105). The PSTN-Internet interworking system(101) is composed of a CNAS(CCS No.7 network Access Subsystem)(102), a VNAS(VoIP Network Access Subsystem)(103), and an ESAS(Ethernet Switching Access Subsystem)(104). The CNAS(102), connected to a CCS No.7 signaling system, transmits and receives messages with the CCS No.7 signaling system. The VNAS(103), connected to the Internet(109), transmits and receives messages and establishes speech paths. The ESAS(104) executes a function to interconnect or switch the CNAS(102), the VNAS(103) and the Internet(109).