In third generation mobile communication technology of a new. It is the" automatic repeat request" ( ARQ ) and" FEC" ( FEC ) combined with a link adaptive technology, through the FEC to some of the most common error processing, so that the H-ARQ can achieve error-free transmission protection. This new technology on the control overhead is small, simple mechanism, the capacity of mobile phone demand is not high, can improve the utilization rate of the channel.
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