Short message conversion between different formats for wireless communication systems

A method for processing a received short message in a wireless communication system, comprising:

• obtaining a value in a first field in the received short message;
• determining whether or not the received short message includes an encapsulated message based on the value obtained from the first field;
• and
• if the received short message includes an encapsulated message,
• obtaining from a second field in the received short message a value indicative of a data coding scheme used for the encapsulated message, and
• processing data in the received short message based on the data coding scheme;
• wherein the received short message is a CDMA SMS message and the encapsulated message is a GSM SMS message;
• and
• wherein the first field is a Msg Encoding field and the second field is a Message Type field in a User Data subparameter of the CDMA SMS message.

An apparatus in a wireless communication system and operable to convert a first short message in a first format to a second short message in a second format, comprising:

• means for setting a first field in the second message to a value indicative of a short message originally in the first format being included in the second message;
• means for setting a second field in the second message to a value indicative of a data coding scheme used for the first message;
• means for setting a data field in the second message to data included in the first message;
• and
• means for defining a new value for said first field, wherein said new value indicates a value indicative of a short message originally in the first format being included in the second message, wherein the first short message is a GSM SMS message and the second short message is a CDMA SMS message and the second field is a Message_Type field in a User Data subparameter of the CDMA SMS message.

An apparatus in a wireless communication system and operable to process a received short message, comprising:

• means for obtaining a value in a first field in the received short message;
• means for determining whether or not the received short message includes an encapsulated message based on the value obtained from the first field;
• and
• means for obtaining from a second field in the received short message a value indicative of a data coding scheme used for the encapsulated message, if the received short message includes an encapsulated message;
• and
• means for processing data in the received short message based on the data coding scheme, if the received short message includes an encapsulated message;
• wherein the received short message is a CDMA SMS message and the encapsulated message is a GSM SMS message;
• and
• wherein the first field is a Msg Encoding field and the second field is a Message_Type field in a User Data subparameter of the CDMA SMS message.