Reporting terminal capabilities for supporting short message service

A network device comprising:

• a receiver configured to receive at least one Internet Protocol (IP)-based registration message from a first user equipment (UE), wherein the at least one IP-based registration message indicates support for short message reception and includes security association data of the first UE, a mobile station international subscriber directory number (MSISDN) identifier of the first UE, and an IP address of the first UE;
• the receiver further configured to receive capability information of the first UE, wherein the capability information includes a terminal type;
• a database configured to store the security association data of the first UE, the MSISDN identifier of the first UE, the IP address of the first UE, and the capability information of the first UE;
• and
• the receiver further configured to receive, from a second UE, an IP-based message including the MSISDN identifier of the first UE;
• circuitry configured to determine, based on the capability information of the first UE, whether the second UE is capable of internet protocol (IP) based short message communication with the first UE;
• and
• a transmitter configured to transmit, to the second UE, an indication of whether the second UE is or is not capable of internet protocol (IP) based short message communication with the first UE.

A method for operation in a first user equipment (UE), the method comprising:

• transmitting, from the first UE to a network node, at least one Internet Protocol (IP)-based registration message, wherein the at least one IP-based registration message indicates support for short message reception and includes security association data of the first UE, a mobile station international subscriber directory number (MSISDN) identifier of the first UE, and an IP address of the first UE;
• transmitting, from the first UE to the network node, capability information including a terminal type;
• and
• receiving, by the first UE from a second UE, an IP-based message including the MSISDN identifier of the first UE, wherein the IP-based message is formatted according to the transmitted capability information.

A first user equipment (UE) comprising:

• a transmitter configured to transmit, from the first UE to a network node, at least one Internet Protocol (IP)-based registration message, wherein the at least one IP-based registration message indicates support for short message reception and includes security association data of the first UE, a mobile station international subscriber directory number (MSISDN) identifier of the first UE, and an IP address of the first UE;
• the transmitter further configured to transmit, from the first UE to the network node, capability information including a terminal type;
• and
• a receiver configured to receive, from a second UE, an IP-based message including the MSISDN identifier of the first UE, wherein the IP-based message is formatted according to the transmitted capability information.