近年来移动通信发展迅速 ,特别是码分多址 (CDMA)技术以它在系统容量、业务质量、安全性和可靠性方面的优势倍受瞩目。本文着重描述了CDMA系统中BS端RLP协议功能及其协议栈结构 ,通过分析RLP与其协议栈中上下层的关系及任务的划分 ,考虑并设计其接口的数据结构 In recent years, the rapid development of mobile communications, especially code division multiple access (CDMA) technology, has attracted much attention for its advantages in system capacity, service quality, security and reliability. This paper describes the RLP protocol function of BS side and its protocol stack structure in CDMA system. By analyzing the relationship between RLP and the upper and lower layers in its protocol stack and the division of tasks, the data structure of its interface is considered and designed