Abstract:
공간 재활용 기법을 위한 네트워크 조정기의 동작 방법은 지향성 안테나를 사용하는 대상 송/수신 페어의 데이터 통신을 위한 시간 구간의 예약 요청을 수신하는 단계; 데이터 통신을 위한 비경쟁 접속(contention free access) 구간인 채널 시간 할당 구간에서 다른 송/수신 페어를 위해 미리 예약된 시간 구간을 검색하는 단계; 및 상기 대상 송/수신을 위해 예약되는 시간 구간과 다른 송/수신 페어를 위해 미리 예약된 시간 구간이 겹치도록 상기 채널 시간 할당 구간에서 상기 대상 송/수신 페어를 위한 시간 구간을 예약하는 단계를 포함한다.
Abstract:
개선된 다이버시티 이득 및 쓰루풋을 제공하는 협력 통신 시스템에서의 데이터 송수신 방법 및 협력 통신 방법에 관한 기술이 개시된다. 이러한 기술에 따르면 릴레이 노드(relay node)에 대해 빔포밍(beamforming)을 수행하는 단계; 상기 릴레이 노드로 데이터를 전송하는 단계; 목적지 노드(destination node)에 대해 빔포밍을 수행하는 단계; 및 상기 목적지 노드로 상기 데이터를 전송하는 단계를 포함하는 협력 통신 시스템에서 소스 노드(source node)의 데이터 전송 방법이 개시된다.
Abstract translation:< p num =“0000”>揭示了一种提供改善的分集增益和吞吐量的协作通信系统中的数据发送/接收方法和协作通信方法的技术。 根据该技术,波束成形在中继节点上执行。 将数据传输到中继节点; 在目标节点上执行波束形成; 并且将数据发送到目的地节点。公开了一种在协作通信系统中发送源节点的数据的方法。
Abstract:
The present invention relates to an apparatus for transmitting and receiving streaming data and a method thereof capable of smoothly regenerating the streaming data without interruption and, more in detail, to an apparatus for transmitting and receiving streaming data using multiple paths and a method thereof capable of exchanging real time streaming data irrespective of obstacles by using the multiple paths. The present invention provides the method for transmitting the streaming data comprising the steps of: managing and maintaining a list of paths including sequencing information on transmittable paths; framing the streaming data; and transmitting the framed streaming data over the paths according to the sequencing information.
Abstract:
A beamforming vector learning system is disclosed. The beamforming vector learning system consists of a data transmitting and receiving apparatus, a data receiving apparatus, and a beamforming vector learning apparatus. The beamforming vector learning apparatus selects a transmission beam vector based on a plurality of reception beam vectors selected at random and selects a pair of optimum vectors by comparing a pair of vectors which are composed of the reception beam vectors and the transmission beam vectors. The selected optimum vector pair is used to transmit a data stream to the data receiving apparatus from the data transmitting and receiving apparatus. [Reference numerals] (310) Select a third transmission beam vector; (311) Select a third reception beam vector; (312) Select a fourth transmission beam vector; (313) Select a first reception beam vector; (320) Select a fifth transmission beam vector; (321) Select a fifth reception beam vector; (322) Select a sixth transmission beam vector; (323) Select a second reception beam vector; (330) Compare the performance of data transmission; (340) Select an optimum transmission beam vector; (AA) Start; (BB) End
Abstract:
PURPOSE: An adaptive multiple antenna structure and a communication device using the same are provided to control receiving antenna intervals or transmitting antenna intervals in a channel state. CONSTITUTION: A CSI(Channel State Information) receiving unit(202) confirms channel state information according to a pilot signal which is transmitted from a transmitter. A location control unit(204) controls antenna intervals of a receiver according to the channel state information. A transmission capacity calculating unit(206) calculates transmission capacity according to the controlled location. The transmission capacity calculating unit calculates transmission capacity having the maximum capacity value.
Abstract:
무선 통신 시스템에서 프로토콜 헤더 구성 방법, 이를 이용한 통신 방법 및 장치를 개시한다. 프로토콜 헤더는, MAC 헤더의 길이 정보를 담고 있는 고정 길이 물리계층 헤더(Fixed length PHY header)와, 페이로드를 구성하는 세그먼트에 대한 정보를 담고 있는 가변 길이 물리계층 헤더(Variable length PHY header)와, MAC 서비스 데이터 유닛에 대한 정보를 담고 있는 MAC 헤더 및 상기 고정 길이 물리계층 헤더, 상기 가변길이 물리계층 헤더 및 상기 MAC 헤더의 결합(combination)에 대한 오류 여부 체크를 위한 헤더 체크 시퀀스(Header Check Sequence, HCS)를 포함한다. PLCP, 프로토콜 헤더, PPDU
Abstract:
PURPOSE: A response method of a group frame in a broadband ultra-high frequency wireless system and a device thereof are provided to reduce resources waste of the system by reducing retransmission of the group frame. CONSTITUTION: A destination device receives a group frame(510). The destination device deciphers the group frame for preset time(512). The destination device creates a response frame(514). The destination device transmits the response frame to a source device. The response frame includes an effective response bitmap size field, a base MSDU(Media access control Service Data Unit) number field, a base fragment number field and a response bitmap field.
Abstract:
PURPOSE: A detour route setting method and apparatus in a broadband high frequency wireless system using a centralized MAC(Media Access Control) protocol are provided to offer quickly a detour route in case the containment of a signal by an obstacle occurs, thereby preventing a communication failure. CONSTITUTION: A first device receives a beacon message from a PNC(PicoNet Coordinator) and confirms the information of the PNC. In response to the beacon message, the first device transmits the information of the first device to the PNC. The first device is registered in the PNC(S530). The first device transmits a detection request to a second device and a relay device(S540). The relay device offers a detour route about the direct communications path of the first and second devices. The first device receives a response to the detection request from the second device and the relay device, and confirms information related to the second device and the relay device(S550).