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    • 14. 发明公开
    • 이동통신 시스템에서 HARQ 피드백 정보를 이용한 ARQ 프로토콜 성능 개선 방법 및 장치
    • 在无线通信系统中使用混合自动重发请求反馈信息来提高自动重复请求协议的性能的方法和装置
    • KR1020130006768A
    • 2013-01-18
    • KR1020110061101
    • 2011-06-23
    • 삼성전자주식회사서강대학교산학협력단
    • 소재우이종민홍대형
    • H04L1/18H04B7/26
    • H04L1/1825H04L1/188H04L1/1896H04L5/0055
    • PURPOSE: An ARQ protocol performance improving method and device are provided to set the operation time of a timer according to the error-detecting-timeout timer motion of a receiver. CONSTITUTION: A transmitter receives a local ACK of ARQ block transmitted from a receiver(S605). A transmitter compares SNR value of HARQ feedback message received time of the local ACK and a standard value(S610). A transmitter postpones the determination of receiving success of ARQ block(S615). A transmitter determines a reception of ARQ block as a success(S620). A transmitter starts timer operation of ARQ block(S625). A transmitter decides request repeat of the corresponding block according to the receiving state of ARQ feedback message of corresponding block before the timer expiration time(S630). A transmitter receives an ARQ feedback message from the receiver(S635). A transmitter performs a retransmission of ARQ block(S640). [Reference numerals] (AA) Start; (S605) Receiving a local ACK of an n-th ARQ block; (S615) Holding off the determination of receiving success of the n-th ARQ block; (S620) Determining receiving success of the n-th ARQ block; (S625) Starting timer operation of (n-1)-th or lower ARQ blocks; (S630) Timer expired?; (S635) Receiving an ARQ feedback message; (S640) Performing retransmission of the ARQ block receiving the feedback; (S645) Determining receiving success of the (n-1)-th or lower ARQ blocks
    • 目的:提供一种ARQ协议性能改进方法和设备,根据接收机的错误检测超时定时器运动设置定时器的运行时间。 构成:发送器接收从接收器发送的ARQ块的本地ACK(S605)。 发送机将本地ACK的HARQ反馈消息接收时间的SNR值与标准值进行比较(S610)。 发射机推迟接收ARQ块成功的确定(S615)。 发送器确定ARQ块的接收成功(S620)。 发送器启动ARQ模块的定时器操作(S625)。 发射机根据在定时器到期时间之前的对应块的ARQ反馈消息的接收状态来决定对相应块的请求重复(S630)。 发射机从接收机接收ARQ反馈消息(S635)。 发射机执行ARQ块的重传(S640)。 (附图标记)(AA)开始; (S605)接收第n个ARQ块的本地ACK; (S615)停止第n个ARQ块的接收成功的判定; (S620)确定第n个ARQ块的接收成功; (S625)启动第(n-1)或更低ARQ块的定时器操作; (S630)定时器过期? (S635)接收ARQ反馈消息; (S640)接收反馈的ARQ块的重传; (S645)确定第(n-1)或更低ARQ块的接收成功