发明名称 |
DIGITAL RADIOTELEPHONE SYSTEM, SUBSCRIBER'S DEVICE, AND METHODS FOR THEIR ADAPTING TO INCREASING CONNECTED LOAD |
摘要 |
FIELD: radiotelephone communications. SUBSTANCE: digital radiotelephone system uses vocoders converting analog voice signals into digital format suited to radio transmission. In most cases, highest possible data transmission speed is chosen to ensure optimal characteristics of audio signal. If system is busy in excess of particular threshold value determined on fixed station of system, instruction is sent to some or all vocoders to change over to lower data transmission speed so as to increase number of communication channels. In addition, portable subscriber's device can separately change over data transmission speed on its vocoder depending on state of charge of its battery. EFFECT: facilitated and more reliable adaptation to increasing connected load. 10 cl, 8 dwg |
申请公布号 |
RU2119256(C1) |
申请公布日期 |
1998.09.20 |
申请号 |
RU19950112489 |
申请日期 |
1994.09.29 |
申请人 |
MOTOROLA, INK. |
发明人 |
DZHON V.BEHTTIN;CHARL'Z N.LINK;KEVIN M.LEHJRD |
分类号 |
H04B7/06;G10L19/00;H04B7/26;H04J3/16;H04W88/18;(IPC1-7):H04B7/26;H04Q7/20 |
主分类号 |
H04B7/06 |
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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