EEA (EPS encryption algorithm)?

The EPS Encryption Algorithms are each appointed a 4 bit identifier. The EPS Encryption Algorithms (EEA) are algorithms that operate with internal 128-bit blocks under the 128-bit input key except the Null ciphering algorithm. LTE confidentiality algorithm EEA is a symmetric simultaneous stream cipher. This kind of ciphering has the benefit of creating the mask of information before getting the information to encrypt, which assist to save time.