码元传输速率
码元传输速率-
对于给定的码元传输速率和行纠错码，电路的工作交错度可有信号的中值电平和多普勒展宽（或信号的中值衰落率）确定。
The operating interleaving degree can be determined by the medium level and Doppler spread ( or medium fading rate ) of signals .
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非对称结构包括在发射端的各个具有发射功率不等、调制方式不同和码元传输速率不等。
The unsymmetrical structure has several categories , including the users have different transmit power , the modulation modes of users are different , and the symbol rates of users are unequal .