NMT Doc. 900 2, Annex 3 I Edition 8w-1

1 INTRODUCTION

1.1 General

This technical specification describes the requirements for Signalling System No. 7 for the Nordic Mobile Telephone system NMT-450/ 900 as defined in NMT Doc. 450/900-2. The specification is split in three parts:

I Mobile User Part (MUP)

II Handover User Part (HUP)

III SCCP specification for Mobile User Part

The purpose of this specification is to define a MUP-specification for the NMT system to correspond to the signalling procedures defined in NMT Doc. 450/900-2.

The signalling system described in this document refers only to end- to-end signalling between NMT nodes(MTX’s, HLR’s and AR). The signalling between MTX’s and HLR’s is conveyed via national and international signalling networks while the signalling between MTX’s and AR is conveyed only via national signalling networks. The signalling between MTX’s and the fixed telephone network is specified in the national TUP or ISUP specifications.

The following cases for NMT node end-to-end signalling are specified in MUP:

MTXV updates information about roaming subscribers in HLR/MTXH,
HLR/MTXH cancels roaming information in an earlier MTXV,
HLR/MTXH updates MS-category information which is stored in MTXV,
MTXV updates service information in HLR/MTXH,
Security Data transfer,
Roaming Signalling

For end-to-end signalling between MTX’s, HLR’s and AR only Security Data Transfer is specified.

The MUP specification includes restart procedures to recover from the error situations, where an MTX or HLR has been restarted and the location register contents have been lost. The procedures for handling of abnormal cases are described.

Revision information:

Edition P11.5, February 1999

Paragraph 2.8.1

Field f,g, optional setting of MTXV Identity. MG-98-008

Paragraph 2.10.15

Field k, Change "Calling party directory number" to "Re-routing number". MG-98-015

Paragraph 2.10.16

Field d, Clarification of "Routing Number Information". MG-98-001
Field e, Bit C: SEM-message update. MG-98-003
Field l, Bit E: Removal of call event report indicator "ringing started". MG-98-009
Field m, Bit TSR: "Unknown" in call diversion information in GRM.
MG-98-010
Field o, optional setting of Information field for subscription status. MG-98-007

1.2.2 Edition P11.4, September 1998

Editorial changes implemented.
Faults in edition 10 corrected.
Numbering of footnotes arranged page by page instead of chapter by chapter.
Functions according to new attachments to NMT-specifications added.
Names of operators mentioned in the cover are changed:
Tele Danmark Mobile to Tele Danmark,
Telenor Mobilnett to Telenor Mobil,
Tele Finland to SONERA.

Paragraph 1.1

«MTX» changed to «NMT-node». «MTXH» changed to «HLR/MTXH».
References to MTX MFC-R2 signalling removed from text.

Paragraph 2.5.1

Field d, bit P: MS category for Low Emission MS, (LEMS) added.
Field d, bit Q: MS category for Continuos Power Control MS, (CPC) added.

Paragraph 2.6.1

Optionality of field h,i clarified.
Field l marked optional.
Information related to secret authentication key removed in field d.

Paragraph 2.10.9

Format fault corrected (fault in Ed9 and Ed10).

Paragraph 2.10.11

Acceptance off dialled digits added.

Paragraph 2.10.16

Routing number length corrected according to paragraph 3.11.3.
Clarifications to field d included.
Call forwarding information(bits ML) and type of call forwarding number(bits TSR) included in field m.

Paragraph 2.10.18

Routing number length corrected according to paragraph 3.11.3.
Clarifications to field f included.

Paragraph 3.2

Text related to transfer of secret authentication key (SAK) removed.

Paragraph 2.10.20

Clarifications to field e included.

Paragraph 3.16

Change of slogan and incorporation of Annex 3-I-I-I, ‘Message Waiting Indication’.

Paragraph 3.11

Paragraph 3.11.3, Clarification of GEI-GRM-GSE-GET transaction added.
New paragraph added. 3.11.4, ‘Network introduction of improved rerouting’.

Paragraph 3.12

Possibility to validate ‘dialled number’ without translation to short number introduced.

1.2.3 Edition 10, June 1997

Editorial changes implemented.
Functions according to new attachments to NMT-specifications added.
New paragraphs added in the «Content list»
Revision information added

Paragraph 1.2

New paragraph inserted. Numbering of the following paragraphs shifted

Paragraph 2.1

MTXV identity changed to Id₁Id₂Id₃in figure 2.1.b

Paragraph 2.2

MTXV identity changed to Id₁Id₂Id₃.
Figure 2.2 «MTX» changed to «NMT-node».
Editorial changes in text.

Table 2.3

New messages: MSA, MSD, SUA and SUM.
Deleted messages: AKN, AKT and AKR.

Abbreviations

New messages added:
Manufacturer Specific Data Acknowledge Message(MSA)
Manufacturer Specific Data Message(MSD)
Supplementary Updating Acknowledge Message (SUA)
Supplementary Updating message (SUM)
Messages deleted:
Authentication Key Not Available Message (AKN)
Authentication Key Request Message (AKR)
Authentication Key Transfer Message (AKT)

Paragraph 2.4.1 Location Updating Message

Figure 2.4.1, New fields added
e)MTXV identity changed to Id₁Id₂Id₃.
h)Information Field Indicator Set no 1. Text changed to:
Bit A: «Indicator for the Traffic Area Indicator field Y₂».
Bit B: «Reserved for indicator for a second set of information fields».

Bit C: «Indicator for the Prepaid Call Units field»
Bit D: New bit, «Indicator for the Operator Indicator Field Y₃».
i)Traffic Area Indicator Y₂
Footnote added
Bit DCBA: Text changed in table
j)Prepaid Call Units
Coding information added.
k)«Operator Indicator Y₃»
New field added.

Paragraph 2.4.3 Supplementary Updating Message (SUM)

New paragraph added

Paragraph 2.5.1 Category/ Supplementary Services Updating Message

Figure 2.5.1
Editorial changes and new fields added
d)Mobile station categories set no 1.
New name on field
Bit L: Extended channels(NMT-450) added
Bit NM: Voice Privacy

Footnote added

f)Supplementary services activation indicators.
Bit a: Spare, Footnote added
Bit c: Spare
Bit d: Elapsed Authorisation period added, Footnote added
Bit fe: Spare
j)Information Field for Business group Subscriber
Text regarding coding changed.
l)Information Field for Subscription status
Bit D: Level of monitoring added
m)Information Field Indicator set no 2
New name on field
Bit B: «Mobile Station Categories Set no 2» added
Bit C: «Message Waiting Indicators» added
Bit HGFED: Spare
o)Supplementary Services/ Mobile Station Categories Set no 2
New field added
p)Message Information Field
New field added

Paragraph 2.6.1 Location Updating Accepted Message

Figure 2.6.1
Editorial changes and new fields added
Footnote added
e)Mobile Station Categories Set no 1.
New name on field
h)Information Field Indicator Set no 1.
New name on field
Editorial changes
i)Information Field Indicator Set no 2
New name on field
Footnote added
Bit A: Change of name to reserved for «Information Field Indicator set no 3».
Bit C: «Supplementary Service/ Mobile station Categories Set no 2» added.
Bit D: «Message Waiting Indicators» added.
k)Address Indicators/ Number of digits
Editorial changes
Field k) and l) are put together in one subfield. The numbering of the following fields are shifted.
p)Supplementary Service/ Mobile station Categories set no 2
New field added
q)Message Waiting Indicators
New field added

Paragraph 2.6.4 Supplementary Updating Acknowledge message (SUA)

New paragraph added

Paragraph 2.8.5 Manufacturer Specific Data Message

New paragraph added

Paragraph 2.8.6 Manufacturer Specific Data Acknowledge Message added

New paragraph added

Paragraph 2.9.2 Authentication Data Request Acknowledge Message

e)Additional Mobile Station Categories
New field added

Paragraph 2.9.3 Authentication Data Not Available Message

d)Reason
New bits added
e)«Additional Mobile Station Categories».
New field added

Paragraph 2.9.4 Authentication Key Request Message (AKR)

Deleted as the transfer of the Secret Authentication Key (SAK) is not allowed.

Paragraph 2.9.5 Authentication Key Transfer Message (AKT)

Deleted as the transfer of the Secret Authentication Key (SAK) is not allowed.

Paragraph 2.9.6 Authentication Key Not Available Message (AKN)

Deleted as the transfer of the Secret Authentication Key (SAK) is not allowed.

Numbering of the following paragraphs in Chapter 2.9 Security Data Transfer Messages are shifted due to the cancellation of the above mentioned paragraphs.

Paragraph 2.9.8 Security Data Acknowledge MTXH (SDAH)

Editorial changes in figure

Paragraph 2.9.9 Security Data No Acknowledge MTXH (SDNH)

Editorial changes.

Paragraph 2.9.10 Security Data Inquiry MTXV Message (SDIV)

h)Additional Mobile Station Categories added

Paragraph 2.9.11 Security Data Acknowledge MTXV Message (SDAV)

e)Additional Mobile Station Categories added

Paragraph 2.9.12 Security Data No Acknowledge MTXV Message(SDNV)

e)Additional Mobile Station Categories added

Paragraph 2.10.8 Routing Information Message.

Figure 2.10.8 Routing Information Message
Change in value of «n» in field f.

Paragraph 2.10.15 Gateway Enquiry Initial Message

i)Call origin information
New coding added

Paragraph 2.10.17 Gateway Subsequent Enquiry Message

h)«Location number» added

Paragraph 2.10.18 Gateway Enquiry Terminate Message

d)Reason for termination
New coding added

Paragraph 2.10.19 HLR Routing Enquiry Message

h)Special information field
New coding added
j)Message Information Field
New field added

Paragraph 2.10.21 HLR Routing Rejected Message

d)Reason
New coding added

Paragraph 2.10.22 Service Exchange Message

h)Location number
Expansion of data field

Paragraph 3.1 General

Table 3.1 HLR related messages
Added: SUM/SUA.
Deleted: AKA, AKT and AKT.

Paragraph 3.2 Location Updating procedure

Services implemented in the procedure

Paragraph 3.2.2.2 Protection methods

«SIS Ms with SIS-controlled Location Updating Procedure»
New point added

Paragraph 3.2.2.7 SIS-controlled Location Updating added

New paragraph added

Paragraph 3.6.1 Transfer of Authentication Data between HLR/MTXH and MTXV.

Editorial changes due to delete of AKR, AKN and AKT messages.

Paragraph 3.16 Short Message Service

New paragraph added

Numbering shifted on the following paragraphs

Paragraph 3.18.4 Timers for call related procedures

Timer T10/T11 changed to 15 seconds.

1.3 Compatibility

All new revisions of the MUP-specification shall be compatible with older revisions. NMT-nodes with different implementations of MUP and service level shall be able to co-operate.

Co-operating data shall content information about the MUP revision of the co-operating exchange. The indicator is implementation dependent.

Originating node is filling in «Optional Information Field Indicators» and «Optional Information Fields» with regards to the MUP edition of the implementation in the terminating node.

The co-operating «service-level» is limited by the node with the reduced functionality.

«Optional Information Field Indicators» must only be added in «Spare» fields or in the end of the message. Spare bits are coded «0».

The terminating node is discarding messages with unreasonable information

Within one MUP edition, the terminating node is throwing away the information in optional fields without any functional support.

1.4 Abbreviations

The abbreviations used for messages and signals are defined in paragraph 2.3.

	AR	Authentication Register
	BS	Base Station
	CCITT	The International Telegraph and Telephone Consultative Committee
	CEPT	Conference Europeenne des Administrations des Postes et des Telecommunications
	HLR	Home Location Register
	HUP	Handover User Part
	ISUP	ISDN User Part
	ISC	International Switching Centre
	IMTXG	International Gateway Mobile Telephone Exchange MS Mobile Station
	MTP	Message Transfer Part
	MUP	Mobile User Part
	MTX	Mobile Telephone Exchange
	MTXG	Gateway Mobile Telephone Exchange
	MTXH	Home Mobile Telephone Exchange
	MTXV	Visited Mobile Telephone Exchange
	NMT	Nordic Mobile Telephone System
	PSTN	Public Switched Telephone Network
	SCCP	Signalling Connection Control Part
	TN	Transaction number
	TUP	Telephone User Part