基于小灵通的无线高速数据业务设计

基于小灵通的无线高速数据业务,其无线网络服务器(RAS)通过接口EI与交换机相连,以LAN接口与数据通信局内ISP局域网相连.RAS底层硬件以Vxworks为开发平台,包括接入、通信、网管和认证、授权、计费等功能模块.PIAFS协议为上层提供数据链路、无错传输、全双工通信、流控制、比特透明性、连接数传等功能.

Designed of Wireless High-Speed Data Business Based on PHS

For design of wireless high-speed data business based on personal handy phone system (PHS), wireless network server (RAS) was connected to exchanger through interface EI, interface of LAN was linked with ISP LAN in the bureau of data communication. The ground floor hardware of RAS was developed on Vxworks platform, and the hardware includes inserting, communication, network management and authentication, authorize, function module of charging etc. Data chain, transmission without error, full-duplex communication, flow control, bits of transparency, connect and count functions etc are supplied by PHS Internet Access Forum Standard (PIAFS) protocol.