发明名称 |
METHOD AND SYSTEM FOR RECOGNIZING CALL SWITCH-OVER FROM 1XEV-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. |
申请公布号 |
AU2003303424(A1) |
申请公布日期 |
2004.07.22 |
申请号 |
AU20030303424 |
申请日期 |
2003.12.12 |
申请人 |
SK TELECOM CO., LTD. |
发明人 |
BEYONGSU KIM;NAMGYU KIM;JAEMOON LEE;JINTAE CHOI |
分类号 |
H04B1/707;H04B7/26;H04J13/00;H04W36/06;H04W36/14;H04W48/18;H04W76/02;H04W76/04;H04W76/06;H04W88/06 |
主分类号 |
H04B1/707 |
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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