...接续指标:掉话率≤2%,接通率≥98%; 楼梯场强≥-85dBm; 电梯场强≥-85dBm; 无线信道的呼损率取定: 话音信道(TCH)呼损≤2%; 在基站接收端位置的收到的上行噪声电平小于-120dBm; 同频干扰保护比:C/I ≥ 12dB(不开跳频),..
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一种数据信道,其传输的信息可取该信道规定界限内的任何值。话音信道就是模拟信道。
A data channel on which the information transmitted can take any value between the limits defined by the channel. Voice - grade channels are analog channels.
双音多频是一种在话音信道用音调来表示数字的方法,它可以用来在模拟话音信道传输信令,因此在通信中有广泛的应用。
Provide is a voice channel and tone to represent Numbers method, which can be used to transmit analog voice, so in communication has been widely used.
双音多频(DTMF)是一种在话音信道用音调来表示数字的方法,它可以用来在模拟话音信道传输信令,因此在通信中有广泛的应用。
Provide (DTMF) is a voice channel and tone to represent Numbers method, which can be used to transmit analog voice, so in communication has been widely used.
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