文中介绍了我院研制的 CDMA BSS系统内部通信的设计方案 ,用多种媒介为多个处理机及备份机之间提供可靠、高效的通信 ,给出了协议体系结构 ,定义了接口和服务 ,提出了逻辑通道、路由及差错控制和倒换倒回实现方案 ,并做了具体实现 This paper introduces the design of CDMA BSS internal communication system developed by our institute, provides reliable and efficient communication between multiple processors and backup machines with multiple media, gives the protocol architecture, defines the interfaces and services, Proposed logic channel, routing and error control and switching back to achieve the program, and made a concrete realization