Abstract:
본 발명은 LTE 시스템에서 기지국의 매체접속제어(MAC) 계층이 단말의 고유 식별자를 이용해 무선자원제어(RRC) 연결 상태에 있는 단말에 대한 페이징을 수행함으로써, 불연속적인 수신 주기로 동작하는 단말의 전력 소모를 줄일 수 있는 페이징 기술에 관한 것으로, 패킷 기반 이동통신 시스템에서 RRC 연결 상태에 있는 단말에 대한 페이징 방법에 있어서, (a) 매체접속제어 처리부가 상기 단말에 대한 페이징 필요에 따라 페이징 메시지를 생성하여 물리계층 처리부로 전달하는 단계; (b) 상기 물리계층 처리부가 상기 단말의 고유 식별자를 포함하는 페이징 지시자를 상기 단말로 전송하는 단계; 및 (c) 상기 단말로부터 상기 페이징 지시자에 대한 응답을 수신하면, 상기 단말로 무선 자원 정보를 제어 채널을 통해 전달하는 단계를 포함하되, 상기 페이징 지시자는 채널 인코딩 없이 상기 단말로 전달된다. 페이징, 지시자, MAC, ID, LTE, 패킷, 이동, 통신, 스케줄링, RRC, 무선 자원 제어
Abstract:
PURPOSE: A device-to-device (D2D) communication method in a wireless communication system is provided to control the transmission and reception of a sounding reference signal for measuring a channel state of a D2D link. CONSTITUTION: A first terminal (411) receives an activation reception allocation information of a first D2D link from a first base station (410) in a first sub frame (S410). The first terminal transmits whether a reception is successful about the activation reception allocation information of the first D2D link or not in a second sub frame after the fixed number of sub frames from the first sub frame (S430). The first terminal receives the data of the first D2D link from a second terminal based on the activation reception allocation information of the first D2D link in a third sub frame after the fixed number of sub frames from the second sub frame. [Reference numerals] (410) First base station; (411) First terminal; (420) Second base station; (421) Second terminal; (S410,S411) Sounding reference signal setting information; (S420) Sounding reference signal; (S430) Channel state information
Abstract:
셀룰러 시스템에서 다양한 품질의 서비스를 지원하기 위하여 기지국과 단말기간의 가용한 방식 및 자원을 통하여 패킷 정보를 계층적으로 전송하는 가변 품질 서비스를 위한 계층적 전송 장치 및 방법을 개시한다. 가변 품질 서비스를 위한 계층적 전송 장치는 패킷 정보를 생성하는 생성부; 상기 패킷 정보를 제어 파라미터에 따라 계층 부호화하여 복수의 계층 패킷을 생성하고, 상기 복수의 계층 패킷에 MIMO 기술을 적용하여 계층 패킷 정보들을 생성하는 계층 부호화부; 및 복수의 안테나를 구비하고, 상기 계층 패킷 정보들을 각각의 상기 안테나 별로 송신하는 송신부를 포함한다. 패킷, 부호화, MIMO, LTE, OFDMA.
Abstract:
Provided is a downlink control information transmitting and receiving method which can maximize the use of limited radio resources by effectively forming an uplink signaling message to be transmitted from a base station to a terminal and transmitting the formed uplink signaling message with a minimum amount of radio resources occupied. The method for transmitting downlink data generation indication information for a base station to inform a terminal of packet data transmission in a packet-based cellular system, includes the steps of: a) generating the downlink data generation indication information; b) recording radio resource allocation information in downlink scheduling information for transmitting the downlink data generation indication information, and allocating information for the downlink data generation indication information to downlink-shared radio resources; and c) transmitting the downlink scheduling information and the information for the downlink data generation indication information according to a transmission cycle.
Abstract:
PURPOSE: A method for managing a channel for a multi carrier structure in a wireless communication system is provided to stop the receiving operation of a corresponding carrier by immediately initializing a down link retransmission buffer in a terminal in a deactivated state of a sub-carrier in a multi carrier environment. CONSTITUTION: A base station permits the initial transmission of data(510). The terminal performs the initial transmission of the data(520). The base station permits the retransmission of the data(530). The terminal performs the retransmission of the data(540). Data initial transmission permission in the base station, the data initial transmission of the terminal, the data retransmission permission of the base station, and the retransmission operation of the terminal are repetitively performed. The base station determines a wireless channel condition(550). The transmission interruption of a corresponding carrier is commanded(560). The base station stops the retransmission permission for the corresponding carrier(570). The terminal stops a retransmission procedure by receiving a transmission interruption command(580).
Abstract:
PURPOSE: A relaying method of performing selective delivery and a wireless communication system using the same are provided to reduce inter-neighbor cell interference due to unnecessary amplification through the selective delivery of a signal. CONSTITUTION: A BS(Base Station) transmits DL(DownLink) data to a terminal(S501). A relay unit detects the energy of the response signal of the terminal(S503). The relay unit reports information about the response signal of the terminal to the BS(S504). The BS decides the selectively delivery of a corresponding signal in the relay unit in the DL signal transmission to a corresponding terminal. The BS delivers information to the relay unit in advance before transmission of the DL signal(S505).