Reliable data transmission method and device suitable for narrow-band weak connection network

The invention discloses a reliable data transmission method and device suitable for a narrow-band weak connection network. According to the method, interaction of most of control signaling of a sourceend and a destination end is omitted by comprehensively utilizing a waiting timeout mechanism, smoothness of a channel is guaranteed by adopting a conservative sending window growth strategy, full-load use of the channel is achieved as soon as possible, and the method adapts to a network with violent jittering, and reliable transmission of data in a narrow-band, high-round-trip-delay and intermittent weak connection network environment is realized. According to the method, the operation steps capable of being executed in series are designed, a special timer does not need to be arranged, implementation is easy, occupied resources are small, and the method is suitable for low-configuration terminals. 本发明公开了一种适用于窄带弱连接网络的可靠数据传输方法和装置。其中方法通过综合利用等待超时机制免去了源端和目的端绝大部分控制信令的交互，通过采用保守的发送窗口增长策略保证了信道的通畅，尽可能快地实现对信道的满载使用，并适应抖动剧烈的