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    • 4. 发明申请
    • MOBILE COMMUNICATION SYSTEM AND DATA TRANSMISSION METHOD THEREOF
    • 移动通信系统及其数据传输方法
    • WO2012165782A3
    • 2013-03-28
    • PCT/KR2012003873
    • 2012-05-17
    • SAMSUNG ELECTRONICS CO LTDCHOI SEUNG HOONKIM YOUNG BUMCHO JOON YOUNGJI HYOUNG JU
    • CHOI SEUNG HOONKIM YOUNG BUMCHO JOON YOUNGJI HYOUNG JU
    • H04L1/18H04L27/26
    • H04J3/1694H04L1/1861H04L1/1893
    • A data transmission method and apparatus is provided for transmitting UL grant or ACK/NACK at flexible subframes in a Time Division Duplex (TDD) system. The data transmission method of a base station according to the present invention includes configuring subframes irrelevant to Hybrid Automatic Repeat reQuest (HARQ) process as flexible subframes; scheduling uplink transmission at the flexible subframes with uplink grant; receiving uplink data transmitted by a terminal at the flexible subframes as scheduled; and transmitting, when decoding the uplink data fails, HARQ acknowledgement/negative acknowledgement (ACK/NACK) or uplink grant to request retransmission of the uplink data. The data transmission method of the present invention is capable of utilizing flexible subframes for uplink transmission without influencing the uplink HARQ process associated with the downlink subframes configured as flexible subframes.
    • 提供了一种数据传输方法和装置,用于在时分双工(TDD)系统中的灵活子帧处发送UL授权或ACK / NACK。 根据本发明的基站的数据传输方法包括配置与混合自动重传请求(Hybrid Automatic Repeat reQuest,HARQ)过程无关的子帧作为灵活子帧; 在具有上行链路授权的灵活子帧上调度上行链路传输; 接收由终端在调度的灵活子帧发送的上行链路数据; 并且当解码所述上行链路数据失败时,发送HARQ确认/否定确认(ACK / NACK)或上行链路许可以请求所述上行链路数据的重传。 本发明的数据传输方法能够利用用于上行链路传输的灵活子帧,而不影响与配置为灵活子帧的下行链路子帧相关联的上行链路HARQ进程。