文章研究了多路并行传输(CMT)场景中接收缓存阻塞问题产生的原因及对传输性能的影响。提出了一种适用于异构无线网络环境的多路并行传输数据调度机制,该机制能够通过往返传输时延等参数对当前各路径的吞吐量进行估计,并综合各条路径的状态分配待传输的数据包。通过仿真得出的结果可以看出,该数据调度机制能够在带宽非对称的网络环境中有效减少接收缓存的阻塞现象。 The paper investigates the causes of reception buffer congestion in the multi-path parallel transmission (CMT) scenario and their impact on transmission performance. This paper proposes a scheduling mechanism for multi-path parallel data transmission which is suitable for heterogeneous wireless network environments. The mechanism can estimate the throughput of each path by parameters such as round-trip transmission delay, and synthesizes the state distribution of each path to be transmitted The data packet. The simulation results show that the data scheduling mechanism can effectively reduce the congestion of the receive buffer in a network environment with asymmetric bandwidth.