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Content for  TS 24.390  Word version:  17.0.0

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1  Scopep. 7

The present document describes the procedures for using Unstructured Supplementary Service Data (USSD) operations for mobile initiated MMI mode over IP Multimedia Core Network Subsystem (IMS) and for network initiated MMI mode over IP Multimedia Core Network Subsystem (IMS). MMI mode is for the transparent transport of MMI strings entered by the user to the Application Servers (AS) and for the transparent transport of text strings back to the User Equipment (UE) to be displayed for user information. Support of either mode of USSD service is optional and only applicable for an operator's Public Land Mobile Network (PLMN).
The current version of the document describes procedures for USSD operation over IMS where the USSD application in the network resides on an AS. Signalling from the AS to other core network functional entities is left out of scope.
The present document is applicable to UE and AS which are intended to support USSD operations over IMS in mobile initiated MMI mode and network initiated MMI mode.
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2  Referencesp. 7

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
  • References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
  • For a specific reference, subsequent revisions do not apply.
  • For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]
TR 21.905: "Vocabulary for 3GPP Specifications".
[2]
RFC 6086  (January 2011): "Session Initiation Protocol (SIP) INFO Method and Package Framework".
[3]
TS 24.090: " Unstructured Supplementary Service Data (USSD); Stage 3".
[4]
3GPP2 X.S0065-0 v1.0 (April 2012): "Unstructured Supplementary Service Data (USSD) Support".
[5]
TS 24.080: "Mobile radio interface layer 3 supplementary services specification; Formats and coding".
[6]
TS 24.229: "IP multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3".
[7]
RFC 4967  (July 2007): "Dial String Parameter for the Session Initiation Protocol Uniform Resource Identifier".
[8]
TS 24.238: "Session Initiation Protocol (SIP) based user configuration; Stage 3".
[9]
RFC 4288  (December 2005): "Media Type Specifications and Registration Procedures".
[10]
RFC 3023:  "XML Media Types".
[11]
RFC 3261:  "SIP: Session Initiation Protocol".
[12]
RFC 5646  (September 2009): "Tags for Identifying Languages".
[13]
TS 24.391: "Unstructured Supplementary Service Data (USSD) using IP Multimedia (IM) Core Network (CN) subsystem (IMS) Management Object (MO)".
[14]
TS 23.221: "Architectural requirements".
[15]
TS 29.002: "Mobile Application Part (MAP) specification".
[16]
RFC 3840  (August 2004): "Indicating User Agent Capabilities in the Session Initiation Protocol (SIP)".
[17]
TS 22.011: "Service accessibility".
[18]
TS 31.102: "Characteristics of the Universal Subscriber Identity Module (USIM) application".
[19]
TS 23.122: "Non-Access-Stratum functions related to Mobile Station (MS) in idle mode".
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3  Definitions, symbols and abbreviationsp. 8

3.1  Definitionsp. 8

For the purposes of the present document, the terms and definitions given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.
For the purposes of the present document, the following terms and definitions given in TS 22.011 apply:
3GPP PS data off
3GPP PS data off exempt service
For the purposes of the present document, the following terms and definitions given in TS 24.229 apply:
3GPP PS data off status
For the purposes of the present document, the following terms and definitions given in TS 23.122 apply:
Equivalent Home (EHPLMN)
Home PLMN (HPLMN)
Visited PLMN (VPLMN)
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3.2  Abbreviationsp. 8

For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.
AS
Application Server
IMS
IP Multimedia core network Subsystem
PS
Packet Switched
UE
User Equipment
USSD
Unstructured Supplementary Service Data
USSI
Unstructured Supplementary Service Data over IM CN subsystem
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