Abstract:
PURPOSE: A topology based mobile communication system and communication method are provided to execute successive high speed data transmission by eliminating handover. CONSTITUTION: One or more sub antennas(SANT) are connected with one or more base antennas(BANT) through a wireless backhaul link. One or more control apparatuses(CU) are connected with one or more base antenna through a wired backhaul link and a wired backbone network(WBN). The control apparatuses analyze state information of terminals. The control apparatuses establish an electromagnetism central electronic wave cluster.
Abstract:
PURPOSE: A system and method for charging the battery of an electric vehicle are provided to help a user to efficiently manage power in charging the electric vehicle by being interlinked with power grids to manage a power demand peak. CONSTITUTION: A system and method for charging the battery of an electric vehicle includes a power storage unit(50) storing the power of a parking lot and a charge management module(1) designing and managing a charge plan. In thecharge management module, an input device(17) help a user to input the maximum charge complete time of a parked electric vehicle and desired price. A charge schedule(12) designs a charge plan in consideration of surrounding environment.
Abstract:
PURPOSE: A method of transmitting data is provided to reduce signaling overhead and to improve system performance by assign radio resource based on the advantage of the collision-based transmission mode and scheduling-bases transmission mode. CONSTITUTION: A multiple access pointer is received from a base station. The multiple access pointer indicates scheduling or collision based mode for transmitting the uplink data. In case of the scheduling base mode, the uplink data is transmitted through a scheduling based block transmitting data according to the scheduling base mode among wireless resource frames. In case of the collision based mode, the uplink data is transmitted through a collision based block transmitting data according to the collision based mode.
Abstract:
본 발명은 다중 홉 릴레이 시스템에서 데이터 전송 방법에 관한 것으로서, 기지국이 제1 단말로부터 상기 기지국과 상기 제1 단말간 채널의 정보(H d,1 )를 수신하는 단계, 상기 기지국이 상기 H d,1 를 이용하여 간섭 제거 프리코딩 매트릭스를 생성하는 단계, 상기 기지국이 중계기로 제1 데이터를 전송하는 단계, 및 상기 중계기가 상기 제1 데이터를 상기 제1 단말로 전송하고, 상기 기지국이 상기 간섭 제거 프리코딩 매트릭스를 이용해 변환한 제2 데이터를 상기 제2 단말로 전송하는 단계를 포함하는 것을 특징으로 한다. 본 발명의 다중 홉 릴레이 시스템에서 데이터 전송 방에 의하면 중계기가 단말로 데이터를 전송할 시 기지국이 다른 단말로 효율적으로 데이터를 전송할 수 있으므로, 기존의 전송 방식으로 인하여 낭비되던 자원을 효율적으로 사용할 수 있으며, 기지국의 전체적인 데이터 전송률을 향상시킬 수 있다. 다중 홉 시스템, 프리코딩 매트릭스
Abstract:
PURPOSE: An optimization method of a wireless multi-hop cooperation communication system, a wireless communication system using the same, and recording medium are provided to select a specific number of relays to maximize capacity of transmission. CONSTITUTION: If decoding transmission capacity is greater than maximum transmission capacity, the maximum decoding set and the maximum transmission beam-forming vector are maintained. It is determined whether a transmission beam-forming vector is calculated(S16). The maximum transmission capacity, the maximum decoding set, the maximum transmission beam-forming vector are obtained as a final value of the maximum transmission capacity, the maximum decoding set, the maximum transmission beam-forming vector(S17).
Abstract:
유기적 토폴로지 기반의 이동 통신 시스템 및 통신 방법을 공개한다. 유기적 토폴로지 기반의 이동 통신 시스템은 하나 또는 그 이상의 단말기, 하나 또는 그 이상의 거점 안테나, 하나 또는 그 이상의 거점 안테나와 무선 백홀 링크를 통해 연결되는 하나 또는 그 이상의 서브 안테나, 및 하나 또는 그 이상의 거점 안테나와 유선 백홀 링크 및 유선 백본망을 통해 연결되고, 하나 또는 그 이상의 거점 안테나와 하나 또는 그 이상의 서브 안테나를 통해 상기 하나 또는 그 이상의 단말기 각각의 상태 정보를 인가받아 분석하여 하나 또는 그 이상의 거점 안테나와 하나 또는 그 이상의 서브 안테나를 서로 다른 조합으로 선택하고 그룹화하여 하나 또는 그 이상의 자기중심 전파 클러스터를 설정하는 제어 장치를 구비한다. 따라서 끊김없는 고속 데이터 전송을 수행할 수 있으며, 핸드오버를 제거할 수 있고, 전력 소비를 줄일 수 있다.
Abstract:
PURPOSE: A serving micro base station within a multi-cell group, micro base station, and communication method of a vehicle mobile terminal are provided to perform handover based on the reception of bidirectional broadcasting information. CONSTITUTION: A macro base station(110) recognizes an access code which is allocated to a vehicle mobile terminal within a multi cell group including micro base station(130). The reverse direction broadcast information including a characteristic access code is received from a vehicles mobile terminal(140).
Abstract:
PURPOSE: A system and method for charging the battery of an electric vehicle are provided to charge the electric vehicle in consideration of surrounding environment by being interlinked with power grids to manage a power demand peak. CONSTITUTION: A system and method for charging the battery of an electric vehicle is comprised of steps: receiving maximum charge complete time of a parked electric vehicle and desired price(S501); receiving the remaining power information of a power storage and required power and price information from a external power client(S502); planning a schedule of charging the electric vehicle based on the obtained information(S503).
Abstract:
PURPOSE: A system and method for charging the battery of an electric vehicle are provided to help a user to efficiently manage power by being interlinked with power grids to manage a power demand peak. CONSTITUTION: A system and method for charging the battery of an electric vehicle is comprised of steps: receiving maximum charge complete time of a parked electric vehicle and desired price(S501); receiving the remaining power information of a power storage and required power and price information from a external power client(S502); planning a schedule of charging the electric vehicle based on the obtained information(S503); moving the electric vehicle to the power storage if the schedule of charging the electric vehicle is planed; and supplying the power of power storage to the external power client(S504).