Information transmission method, mobile management equipment and network system

The invention discloses an information transmission method, mobile management equipment and a network system, particularly an information transmission method, mobile management equipment, access network equipment, a base station, user equipment and a network system. The method comprises the following steps: acquiring the information of target access network equipment; sending a connection request message to the target access network equipment which is designated by the information of the target access network equipment, wherein, the connection request message instructs the user equipment to switch to a high-speed packet data network. The embodiment of the invention can ensure the connection request message to be correctly sent to the target access network equipment.