| 摘要 |
<p>A data transmission method, system and device, establish the tunnel between BS and EP according to a wireless terminal, a sending end determines the data flow classification identification information required to be transmitted in said tunnel, and transmits the said data and flow classification identification information to a receiving terminal via the tunnel between BS and EP, the receiving terminal carries out corresponding operation according to flow classification identification information notified by the sending end. The present invention reduces the quantity of tunnel between BS and EP, reduces the path searching operation of ASN built-in function entity, and avoids each functional entity in ASN repeating flow classification; the present invention can realize data transmission between BS and EP using double layer tunnel technology; thus realizes the purpose to relieve the network maintenance tunnel burden beared by ASN, improve a wireless terminal switching efficiency, improve functional entity work efficiency within ASN.</p> |
