Abstract:
A wireless communication system having a protocol structure for improving latency of a cellular system is provided to carry out partition of data units according to AMC(Adaptive Modulation and Coding) options, so that overhead of packet data is reduced, consequently radio resources can be effectively used. A network layer(430) receives user data from an upper layer. A data link layer(420) determines a data transfer mode based on QoS(Quality of Service) of the user data, and partitions the user data into a lot of packet data according to the determined data transfer mode. A physical layer(410) transmits the packet data to a wireless channel. A control service access point is configured to deliver control information between the data link layer(420) and the physical layer(410).
Abstract:
본 발명은 무선 통신 시스템의 임의 접속용 프리앰블 응답 정보 전송용 기지국 장치와 수신용 단말장치 및 송수신 방법에 관한 것이다. 본 발명에 의하면, 임의 접속 방식의 무선 통신 시스템에서 수신한 단말들의 프리앰블에 대한 응답들을 기지국에서 단말로 전송할 때 응답의 포함 여부를 비트맵으로 작성하여 프리앰블에 대한 응답 요소를 전송하는 채널과 다른 별도의 채널로 전송하면, 단말은 자신의 프리앰블에 대한 응답의 비트맵 위치를 계산하여 해당 위치 비트를 확인하고, 해당 접속 응답 비트맵 위치 이전의 '1'에 따라 접속 응답 요소 채널로 전송되는 자신의 접속 응답 요소 위치를 판단한 후, 해당 위치의 접속 응답 요소만을 복호화함으로써, 접속 응답 여부를 알 수 있도록 하여 접속 응답 요소 복호 시간을 줄이고, 채널 효율을 높일 수 있도록 한다.
Abstract:
A base station device for transmitting the random access preamble response information of wireless communication system, a terminal device for receiving and a method for transceiving the same are provided to reduce the decoding time by decoding the data required to transmit the random access preamble response information of the wireless communication system. A base station device for transmitting the random access preamble response information of wireless communication system includes a preamble reception process unit(210), a bit map formation unit(240), a connection response formation unit(250), a preamble response transmission process unit(220) and a message reception process unit(230). The preamble reception process unit(210) finds the information of the preamble by receiving the preamble transmitted from the terminal. The bit map formation unit(240) forms the bit map displaying the response of the preamble received from a plurality of the terminals. The connection response formation unit(250) constructs the data block to transmit the preamble response element to the preamble response channel. The preamble response transmission process unit(220) transmits the bit map formed by the bit map formation unit(240) and the preamble response element formed by the connection response formation unit to the terminal. The message reception process unit(230) receives and processes the message transmitted by the terminal after the preamble response element is transmitted.