Method and apparatus for maintaining communications when radio communication is unavailable
    1.
    发明授权
    Method and apparatus for maintaining communications when radio communication is unavailable 有权
    当无线电通信不可用时用于维持通信的方法和装置

    公开(公告)号:US07433367B2

    公开(公告)日:2008-10-07

    申请号:US10838972

    申请日:2004-05-04

    IPC分类号: H04J3/16

    CPC分类号: H04L12/2854

    摘要: A method and apparatus for maintaining communications between a mobile computer and a mobile subscriber unit is disclosed. The method and apparatus comprise determining whether a connection is available between the mobile subscriber unit and a radio communications system. If a connection is available, then the method and apparatus include retrieving a first IP address for the mobile computer from the radio communications system. Then, the method and apparatus comprise caching the first IP address in the mobile subscriber unit for use by the mobile computer. Finally, the method and apparatus include utilizing the first IP address even if the radio communications system is unavailable and updating the first IP address with a second IP address obtained from the radio communications system when the radio communications system is available.

    摘要翻译: 公开了一种用于维持移动计算机和移动用户单元之间的通信的方法和装置。 该方法和装置包括确定移动用户单元和无线电通信系统之间的连接是否可用。 如果连接可用,则该方法和装置包括从无线电通信系统检索移动计算机的第一IP地址。 然后,该方法和装置包括缓存移动用户单元中的第一IP地址以供移动计算机使用。 最后,该方法和装置包括利用第一IP地址即使无线电通信系统不可用,并且当无线电通信系统可用时,利用从无线电通信系统获得的第二IP地址来更新第一IP地址。