Abstract:
본 발명은 다중홉 릴레이(Multi-Hop Relay) 방식의 통신시스템에서 중계국(Relay Station)의 데이터 전송 방법에 관한 것으로서, 단말(Mobile Station)로부터 수신되는 다수의 패킷(Packet) 데이터를 소정 방식으로 통합(Aggregation)하여 기지국(Base Station)으로 전송하기 위한 데이터 통합 방식을 결정하는 단계; 상기 단말로부터 패킷 데이터를 수신하여 상기 결정된 데이터 통합 방식에 따라서 적어도 하나 이상의 통합 패킷 클래스로 분류하여 저장하는 단계; 상기 저장된 통합 패킷 클래스의 QoS(Quality of Service) 요구조건 및 MCS(Modulation and Coding Scheme) 레벨을 결정하는 단계; 상기 결정된 MCS 레벨에 따라서 필요한 자원을 산출하고 기지국으로 상기 자원의 할당을 요청하는 단계; 상기 기지국으로부터 자원을 할당 승인 메시지를 수신하고, 상기 통합 패킷 클래스를 변조, 코딩 및 상기 할당된 자원에 매핑(Mapping)하여 통합 패킷을 구성하는 단계; 및 상기 구성된 통합 패킷을 상기 기지국으로 전송하는 단계를 포함하는 중계국의 데이터 전송 방법을 제공한다.
Abstract:
본 발명은 슬라이드 가이드가 구비된 차체와; 상기 슬라이드 가이드를 따라 이동하며, 전륜 및 후륜 중 하나가 장착되는 연결장치를 포함하며, 상기 슬라이드 가이드는, 상기 후륜이 연결장치에 장착된 경우에 전방으로부터 후방 방향을 따라 높이가 높아지도록 구성되고, 상기 전륜이 연결장치에 장착된 경우에 후방으로부터 전방 방향을 따라 높이가 높아지도록 구성된 면적 조절식 차량을 제공한다.
Abstract:
An overlaid two-layer hierarchical cooperation network based on a gateway according to one embodiment of the present invention includes: a first layer which performs intra-cluster communication between the members of a first cluster based on a cluster header which manages the members of the cluster; and a second layer which performs inter-cluster communication between the first cluster and a second cluster which is distinguished from the first cluster and communicates with an external network based on at least one fixed node and the gateway.
Abstract:
PURPOSE: A communications method in an organic topology network is provided to generate a new physical cluster according to the installation of a new distribution node by requesting the configuration of the physical cluster to an organic topology managing device based on the position information of the new distribution node. CONSTITUTION: A new distribution node searches available radio communication (201). The new distribution node requests the configuration of a physical cluster to an organic topology managing device based on the result of the search (203). The physical cluster is a group of the distribution nodes, capable of cooperating with a terminal including the new distribution node. The new distribution node operates in a distribution node mode. The new distribution node broadcasts the information of a new cluster to the terminal included in the physical cluster (205). [Reference numerals] (201) Search available radio communication; (203) Request the configuration of a physical cluster to an organic topology managing device; (205) Broadcast cluster information to terminals; (AA) Start; (BB) End
Abstract:
PURPOSE: An organic topology network and a communication method in a network are provided to accurately receive the increase of traffic by effectively using wireless resources. CONSTITUTION: A memory stores a cluster table. The cluster table includes physical clusters, logical clusters, and transmission clusters. The logical clusters are groups of dispersion nodes which share the data of a terminal included in the physical clusters. The transmission clusters are groups of the dispersion nodes executing cooperative transmission for the terminal included in the logical clusters. A processor directs the physical cluster, the logical cluster, and the transmission cluster using the cluster table.
Abstract:
PURPOSE: A wireless communication system is provided to set a optimized location of a public relay and provides a wireless communication service about the communication terminal in a cell area. CONSTITUTION: A plurality of communication terminals(300a~300e) is located on ground of the wireless communication service area. A public relay(200a,200b) is moves to the wireless communication service area according to the first communication terminal information of the upper base station in a communication access permit state with an upper base station(100). The public relay transmits the channel information to the plurality of communication terminal. The public relay distinguished the plurality of communication terminal according to the second terminal information. The public relay sets optimized location.
Abstract:
PURPOSE: A method for allocating resources between communication links, and a relay and terminal devices for the same are provided to enable efficient communication through an optimized resource distribution of at least two P2P links while using a limited channel and one relay. CONSTITUTION: It is detected whether or not the use of a relay is requested from a first link(S110). When at least some use of resource is stopped at the first link, the relay is used in the first link(S120). The some resources which are not used in the first link are used in the second link(S130). The resource is selected from a group comprising a bandwidth, channel and queue length. The link is a P2P(Peer-to-Peer) communication link.