| 摘要 |
In an encryption control method of a wireless communication system in which, at the time of wireless communication, encryption parameters are used to encrypt data, and the encryption parameters are used for decryption, a judgment is made as to whether an originating mobile terminal (11) and a terminating mobile terminal (21) exist in the same network, and if the terminals exist in the same network, data is passed through by network-side devices (RNCs 31, 32) without performing encryption/decryption processing, and encryption/decryption processing is performed only by the originating mobile terminal and by the terminating mobile terminal. <IMAGE>
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