上行方向 meaning in English
udirection
Examples
- This thesis focuses on the ingress process module of ctu , which translates c - 5 dcp format to rainier 4gs3 . the specification analysis , architecture and logic design , functional simulation testbench design , synthesis report and testing result are discussed in this thesis . the research work mainly includes : the specification analysis and design requirements of ctu logic ; the architecture and logical design of ingress process module , which includes receive control fsm , send control fsm and cell position adjustment logic ; the performance improvement of ingress process module to receive and transmit data cell at the full line speed
本论文的主要研究工作包括：通信协议转换逻辑的功能分析和设计需求；通信协议转换逻辑上行方向的系统分析及体系结构设计，包括上行接收状态机、发送状态机、信元内字节位置调整机制等的设计；通信协议转换逻辑上行方向的线速设计，主要是上行接收的线速设计，要使用流水设计技术；提出了高速实现roundrobin调度策略的实现方法，并设计实现了桶式移位器和优先级编码电路；应用bfm仿真模型设计了上行处理各模块的仿真testbench ，完成了各级模块的模块仿真和系统集成仿真。 - Since epon is a multipoint - to - point system , a major feature for this new architecture is the use of a shared transmission media between all users ; hence , medium access control arbitration mechanisms are essential for the successful implementation of epon : ensure a contention - free transmission and provide end users with an equal access to the shared media
由于epon特殊的点到多点的网络拓扑结构,在上行方向各个光网络单元onu ( opticalnetworkunit )共享信道带宽,采用时分多址tdma的方式发送数据,因此需要采用媒体接入控制( mac )协议来协调各个onu的发送,避免上行数据的冲突。