发明授权
- 专利标题： Communication system switching method, and terminal device using this method
- 专利标题（中）： 通信系统切换方法，终端设备采用此方法
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申请号： US10850695申请日： 2004-05-20
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公开(公告)号： US07212832B2公开(公告)日： 2007-05-01
- 发明人: Tomoyoshi Yokota
- 申请人： Tomoyoshi Yokota
- 申请人地址： JP Kyoto
- 专利权人： Kyocera Corporation
- 当前专利权人： Kyocera Corporation
- 当前专利权人地址： JP Kyoto
- 代理机构： Hogan & Hartson LLP
- 优先权： JPP.2003-155430 20030530
- 主分类号： H04B7/20
- IPC分类号： H04B7/20
摘要：
A W-LAN communication unit, a personal handyphone communication unit and an EV-DO communication unit include communication functions corresponding to their communication systems. A W-LAN quality measurement unit detects a value corresponding to RSSI, which is the reception power. An EV-DO quality measurement unit periodically obtains EV-DO quality values. A throughput measurement unit measures the throughput values for the individual communication systems. A condition setting unit designates a condition for the selection of the W-LAN communication unit, the personal handyphone communication unit or the EV-DO communication unit. A threshold value storage unit stores threshold values. A first determination unit compares the throughput values for the W-LAN and the RSSI with threshold values. A second determination unit compares the EV-DO quality values with threshold values. And a selector performs the switching of communication systems.
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