SIST ETS 300 175-5 E2:2003

• Abstract:

  To update ETS 300 175 based upon experiences from the development of TBR 6 & 10 and comments received.

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.070.30 - Digital Enhanced Cordless Telecommunications (DECT)
• ICS: 35.100.30 - Network layer
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Ref Project: ETSI ETS 300 175-5 ed.2 (1996-09) - Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 5: Network (NWK) layer

Overview

SIST ETS 300 175-5 E2:2003 is a national adoption of the second edition of the European standard ETS 300 175-5. Developed by SIST, this standard outlines the specifications for the Network (NWK) layer of the Digital Enhanced Cordless Telecommunications (DECT) Common Interface (CI). It incorporates updates based on the development experiences of TBR 6 & 10 and stakeholder feedback.

The DECT standard is essential for ensuring compatibility and interoperability between different cordless telecommunications devices and systems, providing guidelines for the implementation of the NWK layer. This layer is crucial in managing messaging, call control, mobility management, and supplementary services within DECT systems.

Key Topics

SIST ETS 300 175-5 E2:2003 addresses several core aspects of the DECT Common Interface Network layer, including:

• Call Control (CC): Procedures and states related to call establishment, maintenance, information exchange, service changes, and release of calls.
• Supplementary Services (SS): Protocols for managing additional telecommunication services such as hold, retrieve, and feature key management.
• Connection Oriented Message Service (COMS): Methods for establishing, transferring, suspending/resuming, and releasing connection-based messages.
• Connectionless Message Service (CLMS): Guidelines for handling both fixed and variable length messages sent without an established connection.
• Mobility Management (MM): Identity handling, authentication procedures, location registration and updating, access rights, and security processes.
• Link Control Entity (LCE): Protocols for establishing and managing data links, including paging and message queuing.
• Message Structure: Definitions of message formats, information elements, coding procedures, and structure of both S-FORMAT and B-FORMAT messages.

Applications

The Network (NWK) layer defined in this standard serves a variety of practical applications within cordless telecommunication environments:

• Cordless Telephony: Ensures seamless communication between portable and fixed parts of DECT systems, providing reliable call management and mobility features.
• Enterprise Communication Systems: Facilitates interoperability between different manufacturers’ equipment within office or campus environments using DECT technology.
• Residential DECT Systems: Ensures compatibility in home cordless phone systems, supporting supplementary services like call hold and transfer.
• Wireless Data Transmission: Allows for the integration of voice and data services over the same DECT infrastructure through defined message and connection-oriented services.
• Network Security and Access Control: Enhances the security of DECT networks through robust authentication, access rights management, and ciphering procedures.
• Device Interoperability: Provides a framework that enables different DECT-enabled devices (such as base stations and handsets) to communicate and manage mobility across various systems.

Related Standards

Understanding and implementation of SIST ETS 300 175-5 E2:2003 is often complemented by reference to connected standards, including:

• ETS 300 175 series: The full set of DECT Common Interface standards, detailing physical, data link, network, and higher layers.
• TBR 6 & TBR 10: Technical Basis for Regulation documents focusing on DECT equipment requirements and test specifications.
• ETSI EN 300 175-1 to 300 175-8: Covering additional DECT layers and system aspects.
• EN 301 406: Harmonized standard for DECT equipment covering essential requirements under the R&TTE Directive.
• ISO/IEC 7498-1 (OSI Reference Model): Framework for understanding the network layer in broader networking contexts.

By adhering to SIST ETS 300 175-5 E2:2003, organizations can ensure the reliability, security, and interoperability of DECT-based network components, supporting efficient and modern cordless telecommunication infrastructure.

SLOVENSKI STANDARD
01-december-2003
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Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 5:
Network (NWK) layer
Ta slovenski standard je istoveten z: ETS 300 175-5 Edition 2
ICS:
33.070.30 'LJLWDOQHL]EROMãDQH Digital Enhanced Cordless
EUH]YUYLþQHWHOHNRPXQLNDFLMH Telecommunications (DECT)
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35.100.30 Omrežni sloj Network layer
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN ETS 300 175-5
TELECOMMUNICATION September 1996
STANDARD Second Edition
Source: ETSI TC-RES Reference: RE/RES-03027-5
ICS: 33.060.50
Key words: DECT, radio
Radio Equipment and Systems (RES);
Digital Enhanced Cordless Telecommunications (DECT);
Common Interface (CI);
Part 5: Network (NWK) layer
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: [e-mail]
Tel.: [phone] - Fax: [phone]
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 1996. All rights reserved.

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ETS 300 175-5: September 1996
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Editing and Committee Support Dept." at the address shown on the title page.

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ETS 300 175-5: September 1996
Contents
Foreword .15
1 Scope.17
2 Normative references.17
3 Definitions and abbreviations .21
3.1 Definitions.21
3.2 Abbreviations .23
4 Overview of the NWK layer .25
5 Overview of procedures .26
5.1 General .26
5.2 Overview of Call Control (CC) .27
5.2.1 General .27
5.2.2 Call establishment.27
5.2.2.1 Call set-up.27
5.2.2.2 Service negotiation.28
5.2.3 Call connect .29
5.2.4 Call information.29
5.2.5 Service change.29
5.2.6 Call release.29
5.3 Overview of Supplementary Services (SS) .29
5.3.1 General .29
5.3.2 Keypad protocol.30
5.3.3 Feature key management protocol.30
5.3.4 Functional protocol.30
5.4 Overview of Connection Oriented Message Service (COMS).31
5.4.1 General .31
5.4.2 COMS establishment.31
5.4.3 Service negotiation .31
5.4.4 COMS connect.32
5.4.5 COMS data transfer .32
5.4.6 COMS suspend and resume.32
5.4.7 COMS release .32
5.5 Overview of ConnectionLess Message Service (CLMS) .32
5.5.1 Fixed length message service.32
5.5.2 Variable length message service.33
5.6 Overview of Mobility Management (MM) .33
5.6.1 General .33
5.6.2 Identity procedures.33
5.6.3 Authentication procedures .34
5.6.4 Location procedures .34
5.6.5 Access rights procedures.34
5.6.6 Key allocation procedure.35
5.6.7 Parameter retrieval procedure .35
5.6.8 Ciphering related procedure .35
5.7 Overview of Link Control Entity (LCE) .35
5.7.1 General .35
5.7.2 Data Link Endpoint Identifier (DLEI) .36
5.7.3 Data link establishment .36
5.7.4 Data link re-establishment .37
5.7.5 Data link release.37

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ETS 300 175-5: September 1996
5.7.6 Data link suspend and resume .37
5.7.7 Queuing of messages .37
5.7.8 Request paging .37
6 Message functional definitions.38
6.1 Overview of message structures.38
6.1.1 Messages .38
6.1.2 Information elements.38
6.2 Message summaries.39
6.2.1 Summary of CC messages.39
6.2.2 Summary of CISS messages.39
6.2.3 Summary of COMS messages.40
6.2.4 Summary of CLMS messages .40
6.2.5 Summary of MM messages.41
6.2.6 Summary of LCE messages .41
6.3 S-FORMAT message functional contents .42
6.3.1 S-FORMAT message overview.42
6.3.2 CC-messages .43
6.3.2.1 {CC-SETUP}.43
6.3.2.2 {CC-INFO}.45
6.3.2.3 {CC-SETUP-ACK}.46
6.3.2.4 {CC-CALL-PROC}.47
6.3.2.5 {CC-ALERTING}.48
6.3.2.6 {CC-CONNECT}.49
6.3.2.7 {CC-CONNECT-ACK}.50
6.3.2.8 {CC-RELEASE} .50
6.3.2.9 {CC-RELEASE-COM} .51
6.3.2.10 {CC-SERVICE-CHANGE} .52
6.3.2.11 {CC-SERVICE-ACCEPT}.52
6.3.2.12 {CC-SERVICE-REJECT} .53
6.3.2.13 {CC-NOTIFY} .53
6.3.2.14 {IWU-INFO}.54
6.3.3 SS-messages (call related and call independent).55
6.3.3.1 {FACILITY}.55
6.3.3.2 {HOLD} .55
6.3.3.3 {HOLD-ACK} .56
6.3.3.4 {HOLD-REJECT} .56
6.3.3.5 {RETRIEVE}.57
6.3.3.6 {RETRIEVE-ACK}.57
6.3.3.7 {RETRIEVE-REJECT}.58
6.3.3.8 {CISS-REGISTER}.58
6.3.3.9 {CISS-RELEASE-COM} .59
6.3.4 COMS-messages.59
6.3.4.1 {COMS-SETUP} .59
6.3.4.2 {COMS-INFO} .60
6.3.4.3 {COMS-ACK} .60
6.3.4.4 {COMS-CONNECT} .61
6.3.4.5 {COMS-RELEASE} .61
6.3.4.6 {COMS-RELEASE-COM} .62
6.3.4.7 {COMS-NOTIFY}.62
6.3.5 CLMS-message.63
6.3.5.1 {CLMS-VARIABLE}.63
6.3.6 MM-messages .64
6.3.6.1 {ACCESS-RIGHTS-ACCEPT}.64
6.3.6.2 {ACCESS-RIGHTS-REJECT}.64
6.3.6.3 {ACCESS-RIGHTS-REQUEST}.65
6.3.6.4 {ACCESS-RIGHTS-TERMINATE-ACCEPT}.65
6.3.6.5 {ACCESS-RIGHTS-TERMINATE-REJECT}.66
6.3.6.6 {ACCESS-RIGHTS-TERMINATE-REQUEST}.66
6.3.6.7 {AUTHENTICATION-REJECT} .67

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ETS 300 175-5: September 1996
6.3.6.8 {AUTHENTICATION-REPLY}.67
6.3.6.9 {AUTHENTICATION-REQUEST}.68
6.3.6.10 {CIPHER-REJECT}.68
6.3.6.11 {CIPHER-REQUEST}.69
6.3.6.12 {CIPHER-SUGGEST}.69
6.3.6.13 {DETACH}.70
6.3.6.14 {IDENTITY-REPLY}.70
6.3.6.15 {IDENTITY-REQUEST} .71
6.3.6.16 {KEY-ALLOCATE} .71
6.3.6.17 {LOCATE-ACCEPT}.72
6.3.6.18 {LOCATE-REJECT}.72
6.3.6.19 {LOCATE-REQUEST}.73
6.3.6.20 {MM-INFO-ACCEPT} .73
6.3.6.21 {MM-INFO-REJECT}.74
6.3.6.22 {MM-INFO-REQUEST}.74
6.3.6.23 {MM-INFO-SUGGEST} .75
6.3.6.24 {TEMPORARY-IDENTITY-ASSIGN} .75
6.3.6.25 {TEMPORARY-IDENTITY-ASSIGN-ACK}.76
6.3.6.26 {TEMPORARY-IDENTITY-ASSIGN-REJ}.76
6.3.7 LCE-messages.77
6.3.7.1 {LCE-PAGE-RESPONSE} .77
6.3.7.2 {LCE-PAGE-REJECT}.77
6.4 B-FORMAT message functional contents .77
6.4.1 B-FORMAT message overview.77
6.4.2 {LCE-REQUEST-PAGE} .78
6.4.3 {CLMS-FIXED}.79
7 S-FORMAT message structures.79
7.1 Overview .79
7.2 Protocol Discrimination (PD) element .80
7.3 Transaction Identifier (TI) element .80
7.4 Message type element.81
7.4.1 Messages for CC .82
7.4.2 Messages for SS.82
7.4.3 Messages for COMS.82
7.4.4 Messages for CLMS.82
7.4.5 Messages for MM .83
7.4.6 Messages for LCE.83
7.5 Other information elements .83
7.5.1 Coding rules.83
7.5.2 Extensions of codesets .85
7.5.3 Locking shift procedure.86
7.5.4 Non-locking shift procedure .86
7.5.5 Display and keypad elements .87
7.5.6 Repeated elements.87
7.6 Fixed length information elements .88
7.6.1 Summary .88
7.6.2 Sending complete and delimiter request .88
7.6.3 Repeat indicator.88
7.6.4 Basic service.89
7.6.5 Single display.89
7.6.6 Single keypad.90
7.6.7 Release reason.90
7.6.8 Signal .91
7.6.9 Timer restart.92
7.6.10 Test hook control.92
7.7 Variable length information elements .93
7.7.1 Summary .93
7.7.2 Allocation type.94
7.7.3 Alphanumeric.94

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ETS 300 175-5: September 1996
7.7.4 Auth type .96
7.7.5 Call attributes.97
7.7.6 Call identity .99
7.7.7 Called party number.100
7.7.8 Called party subaddress.101
7.7.9 Calling party number .102
7.7.10 Cipher info.103
7.7.11 Connection attributes .104
7.7.12 Connection identity.106
7.7.13 Duration.107
7.7.14 End-to-end compatibility.108
7.7.15 Facility.111
7.7.16 Feature activate.111
7.7.17 Feature indicate.114
7.7.18 Fixed identity.116
7.7.19 Identity type .117
7.7.20 Info type .118
7.7.21 InterWorking Unit (IWU) attributes.119
7.7.22 IWU packet .124
7.7.23 IWU to IWU.125
7.7.24 Key.127
7.7.25 Location area .128
7.7.26 Multi-display.129
7.7.27 Multi-keypad.129
7.7.28 NetWorK (NWK) assigned identity.129
7.7.29 Network parameter.130
7.7.30 Portable identity.131
7.7.31 Progress indicator.135
7.7.32 Rand.136
7.7.33 Rate parameters .136
7.7.34 Reject reason.138
7.7.35 RES.139
7.7.36 RS.139
7.7.37 Segmented info .140
7.7.38 Service change info.140
7.7.39 Service class.142
7.7.40 Set-up capability.142
7.7.41 Terminal capability.143
7.7.42 Transit delay .147
7.7.43 Window size.147
7.7.44 ZAP field.148
7.7.45 Escape to proprietary .148
7.7.46 Model identifier.149
7.7.47 MMS Generic Header .149
7.7.48 MMS Object Header.149
7.7.49 MMS Extended header.150
7.7.50 Time-Date.150
7.7.51 Ext h/o indicator.151
8 B-FORMAT message structures .152
8.1 General .152
8.2 LCE request paging messages.152
8.2.1 Short format message.154
8.2.2 Long format message .156
8.3 CLMS-FIXED messages.158
8.3.1 General message structure .158
8.3.2 Message elements.159
8.3.3 Standard message structures .160
8.3.3.1 General.160
8.3.3.2 Messages using 4-bit characters.160

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ETS 300 175-5: September 1996
8.3.3.3 Messages using 8-bit characters. 161
9 Call Control (CC) procedures. 161
9.1 General . 161
9.2 Call Control (CC) states. 164
9.2.1 States at PT. 164
9.2.1.1 State T-00: "NULL" . 164
9.2.1.2 State T-19: "RELEASE PENDING". 164
9.2.1.3 State T-10: "ACTIVE". 164
9.2.1.4 State T-01: "CALL INITIATED" . 164
9.2.1.5 State T-02: "OVERLAP SENDING" . 164
9.2.1.6 State T-03: "CALL PROCEEDING" . 164
9.2.1.7 State T-04: "CALL DELIVERED". 164
9.2.1.8 State T-06: "CALL PRESENT". 164
9.2.1.9 State T-07: "CALL RECEIVED". 164
9.2.1.10 State T-08: "CONNECT PENDING". 164
9.2.2 States at FT. 164
9.2.2.1 State F-00: "NULL" . 164
9.2.2.2 State F-19: "RELEASE PENDING". 165
9.2.2.3 State F-10: "ACTIVE". 165
9.2.2.4 State F-01: "CALL-INITIATED" . 165
9.2.2.5 State F-02: "OVERLAP SENDING" . 165
9.2.2.6 State F-03: "CALL PROCEEDING" . 165
9.2.2.7 State F-04: "CALL DELIVERED". 165
9.2.2.8 State F-06: "CALL PRESENT". 165
9.2.2.9 State F-07: "CALL RECEIVED". 165
9.2.3 Optional states (PT and FT). 166
9.2.3.1 States T-22 and F-22: "OVERLAP RECEIVING" . 166
9.2.3.2 States T-23 and F-23: "INCOMING CALL PROCEEDING"166
9.3 Call establishment procedures. 166
9.3.1 PT initiated call establishment (outgoing call) . 166
9.3.1.1 Call request. 166
9.3.1.2 Call accept or reject. 167
9.3.1.3 Selection of lower layer resources. 168
9.3.1.4 Connection of U-plane . 169
9.3.1.5 Overlap sending. 169
9.3.1.6 Call proceeding. 170
9.3.1.7 Call confirmation . 170
9.3.1.8 Call connection . 171
9.3.1.9 Expiry of timer . 171
9.3.2 FT initiated call establishment (incoming call) . 171
9.3.2.1 Call request. 171
9.3.2.2 Call accept or reject. 171
9.3.2.3 Selection of lower layer resources. 172
9.3.2.4 Connection of U-plane . 173
9.3.2.5 Overlap receiving. 173
9.3.2.6 Call proceeding. 173
9.3.2.7 Call confirmation . 173
9.3.2.8 Call connection . 174
9.3.2.9 Sending of <> . 174
9.3.2.10 Expiry of timer . 174
9.4 Call information procedures. 174
9.5 Call release procedures . 174
9.5.1 Normal call release. 174
9.5.2 Abnormal call release. 175
9.5.3 Release collisions. 176
9.6 Service change procedures. 176
9.6.1 General . 176
9.6.2 Bandwidth changes (including reversals). 177
9.6.3 Service rerouting . 177

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ETS 300 175-5: September 1996
9.6.4 Service suspension and resumption.177
9.7 Packet mode procedures .178
9.7.1 General.178
9.7.2 PT initiated access.178
9.7.3 FT initiated access.178
9.7.4 Packet mode suspend and resume.179
9.7.4.1 General.179
9.7.4.2 C-plane suspend and resume.179
9.7.4.3 U-plane suspend and resume.179
10 Supplementary Services procedures .180
10.1 General .180
10.2 Keypad protocol.180
10.3 Feature key management protocol.181
10.4 Functional protocol.181
10.4.1 Separate messages approach.181
10.4.1.1 Hold procedures.181
10.4.1.2 Retrieve procedures.182
10.4.1.3 Auxiliary states for hold and retrieve .182
10.4.2 Common information element approach.182
10.4.2.1 Call related procedures .182
10.4.2.2 Call independent procedures.183
10.4.2.3. Connectionless Supplementary Service (CLSS) procedure183
10.5 Co-existence of multiple protocols.184
10.6 Application protocols.184
10.6.1 DECT standard functional supplementary services.184
10.6.2 DECT specific supplementary services .185
10.6.2.1 Queue management.185
10.6.2.2 Indication of subscriber number.186
10.6.2.3 Control of echo control functions.186
10.6.2.4 Cost information.186
11 Connection Oriented Message Service (COMS).187
11.1 General .187
11.2 COMS states .187
11.2.1 States at PT.187
11.2.1.1 State TS-0: "NULL" .187
11.2.1.2 State TS-1: "CONNECT PENDING".187
11.2.1.3 State TS-2: "RELEASE PENDING".187
11.2.1.4 State TS-3: "ACTIVE" .187
11.2.2 States at FT.188
11.2.2.1 State FS-0: “NULL” .188
11.2.2.2 State FS-1: "CONNECT PENDING".188
11.2.2.3 State FS-2: "RELEASE PENDING".188
11.2.2.4 State FS-3: "ACTIVE" .188
11.3 COMS establishment procedures.188
11.3.1 PT initiated COMS establishment.188
11.3.1.1 COMS request.188
11.3.1.2 COMS connection.189
11.3.2 FT initiated COMS establishment.189
11.3.2.1 COMS request.189
11.3.2.2 COMS connection.189
11.4 COMS data transfer procedures.190
11.4.1 Procedure at the sending side.190
11.4.2 Procedure at the receiving side.190
11.5 COMS suspend and resume procedures .191
11.6 COMS release procedures.191
11.6.1 Normal COMS release .191
11.6.2 Release collisions .192

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ETS 300 175-5: September 1996
12 ConnectionLess Message Service (CLMS). 192
12.1 General . 192
12.2 CLMS states. 192
12.3 CLMS message transmission procedures. 192
12.3.1 Fixed length messages. 192
12.3.1.1 Procedure in the Fixed radio Termination (FT). 193
12.3.1.2 Procedure in the Portable radio Termination (PT) . 193
12.3.2 Variable length messages . 193
12.3.2.1 Procedure at the sending side. 193
12.3.2.2 Procedure at the receiving side. 194
12.3.2.3 Restrictions for portable side initiated messages . 194
13 Mobility Management (MM) procedures . 194
13.1 General . 194
13.2 Identity procedures. 195
13.2.1 Procedure for identification of PT. 195
13.2.2 Procedure for temporary identity assignment. 196
13.3 Authentication procedures. 197
13.3.1 Authentication of a PT. 198
13.3.2 Authentication of the user. 199
13.3.3 Authentication of a FT. 199
13.4 Location procedures. 200
13.4.1 Location registration . 200
13.4.2 Detach. 202
13.4.3 Location update. 202
13.5 Access rights procedure . 203
13.5.1 Obtaining the access rights . 203
13.5.2 Termination of access rights. 204
13.6 Key allocation procedure. 206
13.7 Parameter retrieval procedure. 207
13.8 Ciphering related procedure . 208
14 Link Control Entity (LCE) procedures . 211
14.1 General . 211
14.2 Connection oriented link control procedures. 212
14.2.1 Link establishment . 212
14.2.2 Direct PT initiated link establishment . 212
14.2.3 Indirect (paged) FT initiated link establishment. 213
14.2.4 Direct FT initiated link establishment (optional). 215
14.2.5 Link maintenance. 215
14.2.6 Link suspend and resume. 215
14.2.6.1 Link suspend . 215
14.2.6.2 Link resume. 216
14.2.7 Link release . 216
14.2.7.1 NLR notification without "partial release" as release
reason . 216
14.2.7.2 NLR notification with "partial release" as release reason . 217
14.3 Connectionless link control procedures. 217
14.3.1 Message routing. 217
14.3.2 Broadcast announce procedure . 218
14.4 Procedure for collective and group ringing . 218
15 Management procedures. 219
15.1 Lower Layer Management Entity (LLME) . 219
15.2 Service mapping and negotiation. 220
15.2.1 General . 220
15.2.2 Prioritised list negotiation. 220
15.2.3 Exchanged attribute negotiation . 221
15.2.4 Operating parameter negotiation. 221
15.2.5 Peer attribute negotiation . 221

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ETS 300 175-5: September 1996
15.3 Service modification procedures .222
15.4 Resource management .222
15.5 Management of MM procedures.222
15.6 Call ciphering management.223
15.7 External Handover .224
15.7.1 Handover candidate procedures.224
15.7.1.1 General.224
15.7.1.2 Handover candidate indication.224
15.7.1.3 Handover candidate retrieval.225
15.7.1.4 Target FP selection.225
15.7.2 Handover reference procedure.226
15.7.2.1 General.226
15.7.2.2 Handover reference indication .226
...