机构地区: 北京邮电大学信息与通信工程学院无线新技术研究所
出 处: 《现代电信科技》 2006年第10期21-24,共4页
摘 要: 根据IEEE802.11r协议设计的WLAN快速切换机制,将密钥管理和QoS资源分配在重关联之前或重关联过程中实现,减小了切换带来的时延,并提供了可用的QoS资源,保证了会话的连续性,从而减少了切换导致的连接中断对实时业务的影响。 The fast transition mechanism of WLAN based on IEEE 802.11r protocol implements key management and resource pre-reservation before or during the reassociation procedure. As a result, the delay of transmission is reduced, and the QoS resource is provided. Therefore, the fast transition mechanism guarantees the continuity of session, and reduces the impact of interrupt to real time service caused by WLAN handoff.