Authentication Method and Device for Network Access

An authentication method for network access, the method comprising:

• establishing a data transmission channel of a first radio access network with a first radio access network device;
• sending identification information of a user equipment in a second radio access network to the first radio access network device, wherein the user equipment supports the first radio access network and the second radio access network;
• receiving authentication information of the second radio access network, corresponds to the identification information, is for the user equipment to use, and is returned by the first radio access network device;
• and
• performing access authentication of the second radio access network according to the received authentication information.

A radio access network device, comprising:

• a channel establishing unit, configured to establish a data transmission channel of a first radio access network with a user equipment, wherein the user equipment supports the first radio access network and a second radio access network;
• an authentication generating unit, configured to obtain identification information of the user equipment in the second radio access network, and generate authentication information which is of the second radio access network and corresponds to the identification information, wherein the authentication information comprises authentication information which is of the second radio access network and is for the user equipment to use and authentication information which is of the second radio access network and is for a second radio access network device to use;
• and
• an authentication sending unit, configured to send the authentication information which is of the second radio access network and is for the user equipment to use to the user equipment through the data transmission channel which is of the first radio access network and is established by the channel establishing unit, and send correspondence between the identification information and the authentication information which is of the second radio access network and is for the second radio access network device to use to the second radio access network device.

A user equipment, comprising:

• a data channel establishing unit, configured to establish a data transmission channel of a first radio access network with a first radio access network device;
• an information sending unit, configured to send identification information of the user equipment in a second radio access network to the first radio access network device, wherein the user equipment supports the first radio access network and the second radio access network;
• an authentication receiving unit, configured to receive authentication information which is of the second radio access network, corresponds to the identification information, is for the user equipment to use, and is returned by the first radio access network device;
• and
• an authentication unit, configured to perform access authentication of the second radio access network according to the authentication information received by the authentication receiving unit.