ETSI EN 300 957 V6.0.1 (1999-09)

Digital cellular telecommunications system (Phase 2+) (GSM); Unstructured Supplementary Service Data (USSD); Stage 3 (GSM 04.90 version 6.0.1 Release 1997)

DEN/SMG-030490Q6

Digitalni celični telekomunikacijski sistem (faza 2+) – Nestrukturirani podatki dopolnilne storitve (USSD) – Stopnja 3 (GSM 04.90, različica 6.0.1, izdaja 1997)

General Information

• Status: Published
• Publication Date: 31-Aug-1999
• Technical Committee: SMG 3 - Network Aspects
• Current Stage: 12 - Completion
• Due Date: 03-Sep-1999
• Completion Date: 01-Sep-1999
• Ref Project: SIST EN 300 957 V6.0.1:2003 - Digital cellular telecommunications system (Phase 2+) (GSM); Unstructured Supplementary Service Data (USSD); Stage 3 (GSM 04.90 version 6.0.1 Release 1997)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 300 957 V6.0.1:2003
01-december-2003
'LJLWDOQLFHOLþQLWHOHNRPXQLNDFLMVNLVLVWHPID]D±1HVWUXNWXULUDQLSRGDWNL
GRSROQLOQHVWRULWYH866'±6WRSQMD*60UD]OLþLFDL]GDMD
Digital cellular telecommunications system (Phase 2+) (GSM); Unstructured
Supplementary Service Data (USSD); Stage 3 (GSM 04.90 version 6.0.1 Release 1997)
Ta slovenski standard je istoveten z: EN 300 957 Version 6.0.1
ICS:
33.070.50 Globalni sistem za mobilno Global System for Mobile
telekomunikacijo (GSM) Communication (GSM)
SIST EN 300 957 V6.0.1:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 300 957 V6.0.1:2003

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SIST EN 300 957 V6.0.1:2003
EN 300 957
V6.0.1 (1999-09)
European Standard (Telecommunications series)
Digital cellular telecommunications system (Phase 2+);
Unstructured Supplementary Service Data (USSD);
Stage 3
(GSM 04.90 version 6.0.1 Release 1997)
R
GLOBAL SYSTEM FOR
MOBILE COMMUNICATIONS

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SIST EN 300 957 V6.0.1:2003
(GSM 04.90 version 6.0.1 Release 1997) 2 EN 300 957 V6.0.1 (1999-09)
Reference
DEN/SMG-030490Q6 (8v00300o.PDF)
Keywords
Digital cellular telecommunications system,
Global System for Mobile communications (GSM)
ETSI
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Copyright Notification
No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1999.
All rights reserved.
ETSI

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SIST EN 300 957 V6.0.1:2003
(GSM 04.90 version 6.0.1 Release 1997) 3 EN 300 957 V6.0.1 (1999-09)
Contents
Intellectual Property Rights.4
Foreword .4
1 Scope.5
2 References.5
3 Abbreviations.5
4 Cross phase compatibility .5
5 Network initiated unstructured supplementary service data operations .6
5.1 Unstructured supplementary service data request . 6
5.1.1 Normal operation . 6
5.2 Unstructured supplementary service data notification . 8
5.2.1 Normal operation . 8
6 Mobile initiated unstructured supplementary service data operations .10
6.1 Normal operation . 10
6.2 Cross phase compatibility . 12
6.2.1 Network only supports protocol version 1 of unstructured supplementary service data operations. 12
6.2.2 Mobile station only supports protocol version 1 of unstructured supplementary service data
operations. 12
Annex A (informative): Change Request History .13
History.14
ETSI

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SIST EN 300 957 V6.0.1:2003
(GSM 04.90 version 6.0.1 Release 1997) 4 EN 300 957 V6.0.1 (1999-09)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect
of ETSI standards", which is available free of charge from the ETSI Secretariat. Latest updates are available on the
ETSI Web server (http://www.etsi.org/ipr).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in SR 000 314 (or the updates on the ETSI Web server)
which are, or may be, or may become, essential to the present document.
Foreword
This European Standard (Telecommunications series) has been produced by the Special Mobile Group (SMG).
The present document specifies the stage 3 description of the Unstructured Supplementary Service Data (USSD)
operations within the digital cellular telecommunications system.
The specification from which the present document has been derived was originally based on CEPT documentation,
hence the presentation of the present document may not be entirely in accordance with the ETSI/PNE rules.
The contents of the present document is subject to continuing work within SMG and may change following formal SMG
approval. Should SMG modify the contents of the present document it will be re-released with an identifying change of
release date and an increase in version number as follows:
Version 6.x.y
where:
6 indicates Release 1997 of GSM Phase 2+
x the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates,
etc.
y the third digit is incremented when editorial only changes have been incorporated in the specification.
Proposed national transposition dates
Date of adoption of this EN: 3 September 1999
Date of latest announcement of this EN (doa): 31 December 1999
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 June 2000
Date of withdrawal of any conflicting National Standard (dow): 30 June 2000
ETSI

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SIST EN 300 957 V6.0.1:2003
(GSM 04.90 version 6.0.1 Release 1997) 5 EN 300 957 V6.0.1 (1999-09)
1 Scope
The present document gives the stage 3 description of the Unstructured Supplementary Service Data (USSD) operations.
The group of unstructured supplementary service data operations is divided into two different classes:
- Network initiated unstructured supplementary service data operations (clause 5);
- Mobile initiated unstructured supplementary service data operations (clause 6).
2 References
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.
• A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the same
number.
• For this Release 1997 document, references to GSM documents are for Release 1997 versions (version 6.x.y).
[1] GSM 01.04: "Digital cellular telecommunications system (Phase 2+); Abbreviations and
acronyms".
[2] GSM 04.08: "Digital cellular telecommunications system (Phase 2+); Mobile radio interface
layer 3 specification".
[3] GSM 04.80: "Digital cellular telecommunications system (Phase 2+); Mobile radio interface
layer 3 supplementary services specification; Formats and coding".
3 Abbreviations
Abbreviations used in the present document are listed in GSM 01.04.
4 Cross phase compatibility
For the mobile initiated USSD operations, a number of changes exist between the present document and the protocol
version 1 specification. For these operations the main body of the present document assumes that all network entities
comply with this version of the service. In this case an additional subclause defines the additional requirements for when
one or more network entities or the Mobile Station (MS) complies with the protocol version 1 specifications for the
USSD operations.
ETSI

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SIST EN 300 957 V6.0.1:2003
(GSM 04.90 version 6.0.1 Release 1997) 6 EN 300 957 V6.0.1 (1999-09)
5 Network initiated unstructured supplementary service
data operations
5.1 Unstructured supplementary service data request
5.1.1 Normal operation
The network invokes an USSD request by sending a REGISTER message containing a UnstructuredSS-Request invoke
component to the MS.
The MS shall respond to the request by sending a FACILITY message containing the user's mobile subscriber's response
in a return result component. The network shall pass the data received in the response to the application handling USSD
operations and shall wait for the response of the application. The application may either continue or terminate the
dialogue.
When the application continues the dialogue, it may initiate another USSD operation by sending a FACILITY message
(see figure 5.2). The operation may either be an USSD request or notification (see subclause 5.1.2).
When the application terminates the dialogue, the network shall clear the transaction by sending a RELEASE
COMPLETE message. The MS may also clear the transaction at any time by sending a RELEASE COMPLETE
message upon the request of the user.
If the MS is unable to process the request received from the network, it shall return an error indication by sending a
FACILITY message containing a return error component. Error values are specified in GSM 04.80.
When the MS receives an USSD operation in parallel to any call independent supplementary service transaction, it shall
respond with a return error component in a RELEASE COMPLETE message, containing the "USSD-Busy" error as
specified in GSM 04.80, to indicate the failure in handling a parallel USSD operation. However, the network is allowed
to initiate USSD operations in parallel to call related transactions.
  MS Network
REGISTER
<------------------------------------------------------------------------------------------------------------------------
Facility (Invoke = UnstructuredSS-Request (ussd-DataCodingScheme, ussd-String))
FACILITY
------------------------------------------------------------------------------------------------------------------------>
Facility (Return result = UnstructuredSS-Request (ussd-DataCodingScheme, ussd-String))
FACILITY
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ->
Facility (Return error (Error))
FACILITY
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ->
Facility (Reject (Invoke_problem))
RELEASE COMPLETE
<------------------------------------------------------------------------------------------------------------------------
NOTE: The MS may clear the transaction at any time by sending a RELEASE COMPLETE upon request of the
user.
Figure 5.1: Single network initiated USSD request
ETSI

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SIST EN 300 957 V6.0.1:2003
(GSM 04.90 version 6.0.1 Release 1997) 7 EN 300 957 V6.0.1 (1999-09)
  MS Network
REGISTER
<------------------------------------------------------------------------------------------------------------------------
Facility (Invoke = UnstructuredSS-Request (ussd-DataCodingScheme, ussd-String))
FACILITY
------------------------------------------------------------------------------------------------------------------------>
Facility (Return result = UnstructuredSS-Request (ussd-DataCodingScheme, ussd-String))
FACILITY
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ->
Facility (Return error (Error))
FACILITY
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ->
Facility (Reject (Invoke_problem))
FACILITY
<------------------------------------------------------------------------------------------------------------------------
Facility (Invoke = UnstructuredSS-Request (ussd-DataCodingScheme, ussd-String))
FACILITY
-------------------------------------------------------------------------------------------------
...