发明名称 |
Method and system for recognizing call switch-over from 1x ev-do system to 1x system |
摘要 |
The system in accordance with the present invention recognizes in real time that a call connection of a hybrid access terminal be switched over to a 1X system, by sending an inquiry message inquiring the hybrid access terminal of whether the hybrid access terminal has received voice signal or a low-rate data signal and by receiving a confirmation message that the hybrid access terminal has received the voice signal or the low-rate data signal from a mobile switching center, if a low-level signal below a prescribed level is received from the hybrid access terminal while counting time initiated from a point of a call drop while the hybrid access terminal is being provided with a multimedia service.
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申请公布号 |
US2006153134(A1) |
申请公布日期 |
2006.07.13 |
申请号 |
US20030541241 |
申请日期 |
2003.12.12 |
申请人 |
LEE JAEMOON;CHOI JINTAE;KIM BEYONGGU;KIM NAMGYU |
发明人 |
LEE JAEMOON;CHOI JINTAE;KIM BEYONGGU;KIM NAMGYU |
分类号 |
H04W36/06;H04W36/14;H04W76/04;H04W76/06;H04W88/06 |
主分类号 |
H04W36/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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