In this paper an efficient technique presents for reducing the computational complexity of the turbo coding in LTE (Long Term Evolution) system. It proposed the chaotic interleaving algorithm for the convolution codes. The presented interleaving is based on chaotic Baker map applied with (2,1,3) convolution codes and (2,1,7) convolution codes compared with turbo coding used in LTE system. The transmitted data will respect to transmit with shorter constrain length of the encoder and the chaotic interleaving enhances the security with the different secret key for every transmitted packet. The proposed system achieves the simplicity, decreases the time delay and saves power compared to the existing system.