Public WLAN, the integrated system of WLAN and GPRS, is one of mobile communication systems to cover the whole globe with high data rate.Load balance is one of the key techniques.

• 摘要无线局域网与GPRS结合而成的公用无线局域网，是一种覆盖全球的宽带移动通信网，负载均衡策略是其中的一项关键技术。