该代码实现了IS-95物理层的仿真，发送端加噪后，接收端采用硬裁决，计算BER等。学习意义很大。-IS95 Forward link is realized. The AWGN is added by tranmitter,and then caculated by hard decision by reveiver. It is useful for CDMA2000 learner.

用查表发和计算法实现的CRC24a校验码的生成。crc24a校验码主要用于LTE数据物理共享信道中-Look-up table calculation achieve CRC24a checksum generation. crc24a check code is mainly used for LTE data physical shared channel

根据TD-SCDMA物理信道资源，计算速率匹配参数是否合理-According to TD-SCDMA physical channel resources, whether it is reasonable to calculate the rate matching parameters