由于无线信道的高误码率和突发错误的特性，在无线at M中必须使用有效的差错控制机制。
In wireless ATM network, an efficient error control mechanism has to be used because of the high bit error rate and burst nature of bit errors.
并通过差错控制机制，有效减低了发生错误后重传相关信息的概率。
Through the error control mechanism, the probability of retransmission can be cut back down in effect.
通常需要采用差错控制码来检测和纠正由信道失真引起的信息传输错误。
Usually there is need to use error control coding to detect and correct those transmission errors caused by signal distortion.
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