发明名称 |
Simultaneous voice and data transmission method, for mobile phone system, using half-rate voice signal transmission to allow inclusion of packet data |
摘要 |
Voice signals are transmitted according to a half-rate protocol and data signals are transmitted, simultaneously. Data transmission is preferably in packet mode, and ocupies the remaining capacity made available by the half-rate speech transmission. A buffer memory is preferably used to store data packets prior to their transmission. A class C mobile phone has a half rate voice coder to allow simultaneous transmission of voice and data signals as in a Class A mobile by interlacing of the voice (M0-M7, P0-P7) and data (D0-D7,E0-E7) word bits after filtering of the voice signal to use a speech model. An Independent claim is included for a mobile phone with memory storing a program for speech transmission and a program for data transmission.
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申请公布号 |
FR2812508(A1) |
申请公布日期 |
2002.02.01 |
申请号 |
FR20000010009 |
申请日期 |
2000.07.28 |
申请人 |
SAGEM SA |
发明人 |
HEURTAUX FREDERIC;ALOS RAFAEL |
分类号 |
H04W72/12;(IPC1-7):H04Q7/30;H04Q7/32 |
主分类号 |
H04W72/12 |
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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