Mobile station, access point, gateway apparatus, base station, and handshake method thereof for use in a wireless network framework

A handshake method for use in a mobile station in a wireless network framework, the wireless network framework comprising a first wireless network and a second wireless network, the first wireless network comprising an access point, the second wireless network comprising a gateway apparatus and a base station, an IP security tunnel existing between the access point and the gateway apparatus, the access point storing an identification of the mobile station, the mobile station storing a master session key and the identification, the handshake method comprising the steps of:

• transmitting the master session key to the access point;
• transmitting a notification signal to the access point so that the access point transmits the master session key and the identification to the gateway apparatus via the IP security tunnel after the access point receives the notification signal;
• generating an authorization key according to the master session key and the identification;
• transmitting a subscriber station basic capability request signal to the base station;
• receiving a subscriber station basic capability response signal from the base station after the transmission of the subscriber station basic capability request signal;
• decrypting the subscriber station basic capability response signal according to the authorization key;
• and
• performing the handshake with the authorization key.

A handshake method for use in an access point in a wireless network framework, the wireless network framework comprising a first wireless network, a second wireless network, and a mobile station, the first wireless network comprising the access point, the second wireless network comprising a base station and a gateway apparatus, the access point storing an identification of the mobile station and a master session key of the mobile station, the handshake method comprising the steps of:

• building an IP security tunnel between the access point and the gateway apparatus;
• receiving a notification signal from the mobile station;
• and
• transmitting the identification and the master session key to the gateway apparatus via the IP security tunnel after the receipt of the notification signal so that the gateway apparatus generates an authorization key according to the master session key and the identification and transmits the authorization key to the base station so that the base station and the mobile station perform the handshake with the authorization key.

A gateway apparatus for use in a wireless network framework, the wireless network framework comprising a mobile station, a first wireless network, and a second wireless network, the first wireless network comprising an access point, the access point storing an identification of the mobile station and a master session key of the mobile station, the second wireless network comprising a base station and a gateway apparatus, the gateway apparatus comprising:

• a transmission/receiving module, being configured to build an IP security tunnel between the access point and the gateway apparatus and receive the identification and the master session key from the access point via the IP security tunnel;
• and
• a process module, being configured to generate an authorization key according to the master session key and the identification;
• wherein the transmission/receiving module is further configured to receive a mobile station preattachment request signal, the mobile station preattachment request signal is generated by the base station after the base station receives a subscriber station basic capability request signal, the transmission/receiving module is further configured to transmit a mobile station preattachment response signal comprising the authorization key to the base station after the receipt of the mobile station preattachment request signal so that the base station generates and transmits a subscriber station basic capability response signal to the mobile station according to the authorization key so that the base station and the mobile station perform the handshake according to the subscriber station basic capability response signal.

A handshake method for use in a gateway apparatus in a wireless network framework, the wireless network framework comprising a first wireless network, a second wireless network, and a mobile station, the first wireless network comprising an access point, the access point storing an identification of the mobile station and a master session key of the mobile station, the second wireless network comprising a gateway apparatus and a base station, the handshake method comprising the steps of:

• building an IP security tunnel between the access point and the gateway apparatus;
• receiving the master session key and the identification from the access point via the IP security tunnel;
• generating an authorization key according to the master session key and the identification;
• receiving a mobile station preattachment request signal from the base station, where the mobile station preattachment request signal is generated by the base station after the base station receives a subscriber station basic capability request signal;
• and
• transmitting a mobile station preattachment response signal comprising the authorization key to the base station after the receipt of the mobile station preattachment request signal so that the base station generates and transmits a subscriber station basic capability response signal to the mobile station according to the authorization key so that the mobile station and the base station perform the handshake according to the subscriber station basic capability response signal.

A base station for use in a wireless network framework, the wireless network framework comprising a mobile station and a wireless network, the wireless network comprising the base station and a gateway apparatus, the gateway apparatus storing an authorization key, the base station comprising:

• a transmission/receiving module, being configured to receive a subscriber station basic capability request signal from the mobile station, transmit a mobile station preattachment request signal to the gateway apparatus after the receipt of the subscriber station basic capability request signal, receive a mobile station preattachment response signal comprising the authorization key from the gateway apparatus, an transmit a subscriber station basic capability response signal to the mobile station after the receipt of the mobile station preattachment response signal;
• and
• a process module, being configured to generate the mobile station preattachment request signal after the receipt of the subscriber station basic capability request signal and generate the subscriber station basic capability response signal according to the authorization key comprised in the mobile station preattachment response signal;
• wherein the transmission/receiving module is further configured to perform the handshake with the mobile station after the mobile station receives the subscriber station basic capability response signal.

A handshake method for use in a base station in a wireless network framework, the wireless network framework comprising a wireless network and a mobile station, the wireless network comprising the base station and a gateway apparatus, the gateway apparatus storing an authorization key, the handshake method comprising following steps of:

• receiving a subscriber station basic capability request signal from the mobile station;
• transmitting a mobile station preattachment request signal to the gateway apparatus after the receipt of the subscriber station basic capability request signal;
• receiving a mobile station preattachment response signal comprising the authorization key from the gateway apparatus;
• transmitting a subscriber station basic capability response signal to the mobile station after the receipt of the mobile station preattachment response signal;
• and
• performing the handshake with the mobile station after the mobile station receives the subscriber station basic capability response signal.

A mobile station for use in wireless network framework, the wireless network framework comprising a first wireless network and a second wireless network, the first wireless network comprising an access point, the second wireless network comprising a gateway apparatus and a base station, an IP security tunnel existing between the access point and the gateway apparatus, the gateway apparatus storing a master session key, the mobile station comprising:

• a storage module, being configured to store the master session key;
• a transmission/receiving module, being configured to transmit a notification signal to the base station so that the base station generates and transmits another notification signal to the gateway apparatus in response to the notification signal to make the gateway apparatus transmit the master session key to the access point via the IP security tunnel after the receipt of the another notification signal, the transmission/receiving module is further configured to transmit an association request signal to the access point and receive an association response signal after the transmission of the association request signal;
• and
• a process module, being configured to generate a pair-wise temporary key according to the master session key stored in the storage module;
• wherein the transmission/receiving module is further configured to perform the handshake with the access point with the pair-wise temporary key.

A handshake method for use in a mobile station in a wireless network framework, the wireless network framework comprising a first wireless network and a second wireless network, the first wireless network comprising an access point, the second wireless network comprising a gateway apparatus and a base station, the mobile station storing a master session key, the gateway apparatus storing the master session key, an IP security tunnel existing between the access point and the gateway apparatus, the handshake method comprising the steps of:

• transmitting a notification signal to the base station so that the base station generates and transmits another notification signal to the gateway apparatus after the base station receives the notification signal to make the gateway apparatus transmit the master session key stored in the gateway apparatus to the access point via the IP security tunnel after the gateway apparatus receives the another notification signal;
• transmitting an association request signal to the access point;
• receiving an association response signal from the access point after the transmission of the association request signal;
• generating a pair-wise temporary key according to the master session key;
• and
• performing the handshake with the pair-wise temporary key.

An access point for use in a wireless network framework, the wireless network framework comprising a mobile station, a first wireless network, and a second wireless network, the first wireless network comprising the access point, the second wireless network comprising a gateway apparatus and a base station, the gateway apparatus storing a master session key of the mobile station, the access point comprising:

• a transmission/receiving module, being configured to build an IP security tunnel between the access point and the gateway apparatus and receive the master session key from the gateway apparatus via the IP security tunnel;
• a process module, being configured to generate a pair-wise temporary key according to the master session key;
• and
• a storage module, being configured to store the master session key;
• wherein the transmission/receiving module is further configured to receive an association request signal from the mobile station after receiving the master session key, transmit a association response signal to the mobile station after the receipt of the association request signal, and perform the handshake with the mobile station with the pair-wise temporary key.

A handshake method for use in an access point in a wireless network framework, the wireless network framework comprising a mobile station, a first wireless network, and a second wireless network, the first wireless network comprising the access point, the second wireless network comprising a gateway apparatus and a base station, the gateway apparatus storing a master session key, the handshake method comprising the steps of:

• building an IP security tunnel between the access point and the gateway apparatus;
• receiving the master session key from the gateway apparatus via the IP security tunnel;
• generating a pair-wise temporary key according to the master session key;
• receiving an association request signal from the mobile station after receiving the master session key;
• transmitting an association response signal to the mobile station after the receipt of the association request signal;
• and
• performing the handshake with the mobile station with the pair-wise temporary key.

A handshake method for use in a gateway apparatus in a wireless network framework, the wireless network framework comprising a mobile station, a first wireless network. and a second wireless network, the first wireless network comprising an access point, the second wireless network comprising the gateway apparatus and a base station, the gateway apparatus storing a master session key, the handshake method comprising the steps of:

• building an IP security tunnel between the access point and the gateway apparatus;
• receiving a notification signal from the base station;
• and
• transmitting the master session key to the access point via the IP security tunnel after the receipt of the notification signal so that the access point generates a pair-wise temporary key according to the master session key to perform the handshake with mobile station.

A handshake method for use in a base station in a wireless network framework, the wireless network framework comprising a mobile station, a first wireless network, and a second wireless network, the mobile station storing a master session key, the first wireless network comprising an access point, the second wireless network comprising the base station and a gateway apparatus, an IP security tunnel existing between the access point and the gateway apparatus, the gateway apparatus storing the master session key, the handshake method comprising the steps of:

• receiving a notification signal from the mobile station;
• generating another notification signal after the receipt of the notification signal;
• and
• transmitting the another notification signal to the gateway apparatus so that the gateway apparatus transmits the master session key to the access point via the IP security tunnel after the receipt of the another notification signal to make the access point generate a pair-wise temporary key according to the master session key to perform the handshake with the mobile station.