Method for storing and forwarding short messages to mobile subscribers in a cellular communications system
First Claim
1. A method for routing a short message call to a mobile station in a mobile communications network, comprising the steps of:
- associating a mobile station number of said mobile station to an address of a dedicated short message service center;
storing said mobile station number of the mobile station and said address of the dedicated short message service center in a database;
submitting a Q.931 call control setup message containing said short message call to said mobile communications network, said step of submitting further includes;
inserting the mobile station number of said mobile station into a called party number element of the Q.931 call control setup message;
inserting short message text into a user-user information element of the Q.931 call control setup message; and
inserting control data into a locking shift codeset-6 information element of the Q.931 call control setup message;
upon receipt of the Q.931 call control setup message by said mobile communications network, retrieving said stored address of the dedicated short message service center associated with the stored mobile station number from the database; and
forwarding said short message call to said mobile station through the dedicated short message service center.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and apparatus for transferring a short message between an originating mobile station and the short message service center permanently associated with the destination mobile station is disclosed. The originating mobile station sends the short message (including the address of the destination mobile station) to the mobile network over an air interface. The mobile network transfers the short message internally between switching nodes. One of the switching nodes interrogates a subscriber database, and passes the mobile station'"'"'s address to the database, and passes the information showing that this is a short message submitted from a mobile station. The database checks to determine if the destination mobile station is short message service capable. If not, the short message is terminated. Otherwise, the database returns the address of the short message service center permanently associated with the destination mobile station. The short message is transferred through the mobile network to that short message service center.
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Citations
30 Claims
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1. A method for routing a short message call to a mobile station in a mobile communications network, comprising the steps of:
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associating a mobile station number of said mobile station to an address of a dedicated short message service center; storing said mobile station number of the mobile station and said address of the dedicated short message service center in a database; submitting a Q.931 call control setup message containing said short message call to said mobile communications network, said step of submitting further includes; inserting the mobile station number of said mobile station into a called party number element of the Q.931 call control setup message; inserting short message text into a user-user information element of the Q.931 call control setup message; and inserting control data into a locking shift codeset-6 information element of the Q.931 call control setup message; upon receipt of the Q.931 call control setup message by said mobile communications network, retrieving said stored address of the dedicated short message service center associated with the stored mobile station number from the database; and forwarding said short message call to said mobile station through the dedicated short message service center. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for routing a short message call to a mobile station in a mobile communications network, said method comprising the steps of:
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associating a mobile station number of said mobile station to an address of a dedicated short message service center; storing said mobile station number of the mobile station and said address of the dedicated short message service center in a database; submitting a Q.931 call control setup message containing the short message call to a visited mobile services switching center; submitting, responsive to receiving the Q.931 call control setup message, a first ISUP initial address message to a gateway mobile services switching center; interrogating, responsive to receiving the first ISUP initial address message, the database to obtain the address of the dedicated short message service center using a mobile application part message; submitting, responsive to obtaining the stored short message service center address, a second ISUP initial address message to a SMS interworking mobile services switching center; submitting, responsive to receiving the second ISUP initial address message, a third ISUP initial address message to the dedicated short message service center; and forwarding, responsive to receiving the third ISUP initial address message, the short message call to the mobile station. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A mobile communications network for routing a short message call to a mobile station, said mobile communications network comprising:
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a dedicated short message service center; a database for storing a mobile station number and an associated address of the dedicated short message service center; means for receiving a Q.931 call control setup message containing said short message call, said Q.931 call control setup message further includes; a called party number element for storing the mobile station number; a user-user information element for storing short message text; and a locking shift codeset-6 information element for storing control data; means, responsive to receiving the Q.931 call control setup message, for retrieving said address of the dedicated short message service center from the database; and means, responsive to retrieving the address, for forwarding said short message call to said mobile station through the dedicated short message service center. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
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30. A method for routing a short message call to a mobile station in a mobile communications network, comprising the steps of:
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associating a mobile station number of said mobile station to an address of a dedicated short message service center; storing said mobile station number of the mobile station and said address of the dedicated short message service center in a database; submitting a Q.931 call control setup message containing said short message call to said mobile communications network, upon receipt of the Q.931 call control setup message by said mobile communications network, retrieving said stored address of the dedicated short message service center associated with the stored mobile station number from the database, said step of retrieving further includes; generating, using the Q.931 call control setup message, a first ISUP initial address message; and generating, using the first ISUP initial address message, a mobile application part message used to obtain the stored address of the dedicated short message service center; and forwarding said short message call to said mobile station through the dedicated short message service center, said step of forwarding further includes; generating a second ISUP initial address message used to route said short message call to said mobile station through the dedicated short message service center, said step of generating further includes; setting a calling party element of the second ISUP initial address message to the short message entity; inserting the retrieved address of the dedicated short message service center into a called party number element of the second ISUP initial address message; inserting the short message text into an ISUP user-user information element of the second ISUP initial address message; and inserting the control data into an ISUP access transport element of the second ISUP initial address message.
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Specification