SIST EN 300 175-5 V1.9.1:2006
(Main)Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 5: Network (NWK) layer
- Abstract
The present document gives an introduction and overview of the complete Digital Enhanced Cordless Telecommunications (DECT) Common Interface (CI). The present document specifies the Network (NWK) layer. The NWK layer is part 5 of the EN 300 175 and layer 3 of the DECT protocol stack.The present document only specifies the C-plane (control plane) of the DECT NWK layer. It contains no specification for the U-plane (user plane) because the U-plane is null for all services at the DECT NWK layer. The C-plane contains all of the internal signalling information, and the NWK layer protocols are grouped into the following families of procedures:
• Call Control (CC);
• Supplementary Services (SS);
• Connection Oriented Message Service (COMS);
• ConnectionLess Message Service (CLMS);
• Mobility Management (MM);
• Link Control Entity (LCE).
The present document uses the layered model principles and terminology as described in ITU-T Recommendation X.200 and ITU-T Recommendation X.210.
- Status
- Published
- Publication Date
- 28-Feb-2006
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Mar-2006
- Due Date
- 01-Mar-2006
- Completion Date
- 01-Mar-2006
SIST EN 300 175-5 V1.9.1:2006 is the Slovenian adoption of ETSI EN 300 175-5 for Digital Enhanced Cordless Telecommunications (DECT) Common Interface (CI), Part 5: Network (NWK) layer. It specifies the DECT NWK layer, which is layer 3 of the DECT protocol stack, for control-plane signaling in DECT systems. The document is for people who need to implement, test, or assess DECT network-layer messaging and procedures.
What does SIST EN 300 175-5 V1.9.1:2006 specify?
SIST EN 300 175-5 V1.9.1:2006 specifies the DECT NWK layer and gives an introduction to the complete DECT Common Interface. The scope is limited to the C-plane (control plane); the U-plane is not specified because the U-plane is null for all services at the DECT NWK layer.
The document is organized around the layer overview, procedure families, message definitions, message coding, and Call Control procedures.
- Clause 1 - Scope
- Clause 2 - References
- Clause 3 - Definitions and abbreviations
- Clause 4 - Overview of the NWK layer
- Clause 5 - Overview of procedures
- Clause 6 - Message functional definitions
- Clause 7 - S-FORMAT message structures
- Clause 8 - B-FORMAT message structures
- Clause 9 - Call Control (CC) procedures
Clause 5 groups the NWK layer procedures into Call Control (CC), Supplementary Services (SS), Connection Oriented Message Service (COMS), ConnectionLess Message Service (CLMS), Mobility Management (MM), and Link Control Entity (LCE). In practice, that tells the reader which signaling family to use for a given task.
What are the key requirements of SIST EN 300 175-5 V1.9.1:2006?
SIST EN 300 175-5 V1.9.1:2006 defines the signaling model, the message formats, and the coding of the information elements used by the DECT NWK layer. For implementers, the main task is to build and interpret the correct control-plane messages for calls, mobility, paging, and transparent information transfer.
NWK layer scope and procedure families
The standard says the NWK layer handles internal signaling information only. Clause 5 shows the main procedure families, so a system designer can separate call handling, mobility handling, paging, and message transport into the right protocol functions.
Message formats and common fields
Clause 6 defines the message families and Clause 7 defines their structures. S-FORMAT messages carry the common fields Protocol Discriminator (PD), Transaction Identifier (TI), and Message Type, plus information elements; B-FORMAT messages are used for paging and fixed message cases. In practice, this means every implementation must code the common header fields consistently before adding service-specific data.
Information element coding
Clause 7 defines the coding rules for fixed-length and variable-length information elements, repeated elements, locking and non-locking shifts, segmented information, and the escape mechanisms for proprietary data. This matters because many DECT messages can carry lists, segmented payloads, or optional service data, and the receiver must parse them in the order and structure defined here.
Call Control, Supplementary Services, and COMS
Clause 5 and Clause 6 cover call setup, connect, information, service change, and release for CC; hold and retrieve for SS; and setup, data transfer, acknowledgment, suspend, resume, and release for COMS. That gives the implementer the signaling needed for ordinary voice calls, service control, and connection-oriented messaging.
Mobility Management and LCE behavior
MM covers identity procedures, authentication, location procedures, access rights procedures, key allocation, parameter retrieval, ciphering-related procedure, and external protocol information exchange. LCE covers paging, data link establishment, re-establishment, release, suspend, resume, queuing of messages, and request paging. In practice, these are the procedures that keep a portable part reachable, authenticated, and attached to the network.
Call Control state handling
Clause 9 provides CC procedures and CC states. A DECT implementation uses these states to keep call signaling synchronized across setup, service changes, and release.
What terms does SIST EN 300 175-5 V1.9.1:2006 define?
- DECT - Digital Enhanced Cordless Telecommunications, the radio system family covered by the standard.
- NWK - The Network layer, identified here as layer 3 of the DECT protocol stack.
- C-plane - The control plane that carries internal signaling information at the NWK layer.
- U-plane - The user plane; at the DECT NWK layer it is null for all services.
- CC - Call Control, the procedure family for call setup, connect, information, service change, and release.
- MM - Mobility Management, the procedure family for identity, authentication, location, access rights, keys, and ciphering.
- LCE - Link Control Entity, the procedure family for paging and data-link handling.
Who uses SIST EN 300 175-5 V1.9.1:2006?
This standard is used by DECT equipment designers, protocol stack developers, interoperability test labs, and certification teams. It is also useful to quality managers and buyers who need to verify that a product supports DECT network-layer signaling, mobility handling, paging, and the required message coding.
Which standards are used with SIST EN 300 175-5 V1.9.1:2006?
- ITU-T Recommendation X.200 and ITU-T Recommendation X.210 - provide the layered model principles and terminology used in the document.
- EN 300 403-1 - gives the principles for variable-length information elements.
- EN 300 175-3 - is used for rate-related attributes and packet lifetime references.
- EN 300 175-4 - is used for U-plane link number coding and parts of connection identity handling.
- EN 300 175-6 - is used for portable identity coding.
- The document also references coding or profile standards such as ITU-T T.50, ITU-T Q.921/I.441, ITU-T V.110, ITU-T X.30, ITU-T X.25, ISO/IEC 2022, ETS 300 125, EN 300 757, EN 300 649, EN 300 765-1, EN 300 765-2, TS 101 863, TS 102 342, and TS 102 379 for specific information-element codings.
What does the SIST EN 300 175-5 V1.9.1:2006 document contain?
The document contains message summaries for CC, SS, COMS, CLMS, MM, and LCE, followed by detailed message-by-message information-element tables. It also contains coding rules and bit-level definitions for many information elements, including identities, call attributes, connection attributes, progress indication, service change info, terminal capability, window size, and release or reject reasons.
It further includes the structure of S-FORMAT and B-FORMAT messages, plus the coding of message types and message headers. Clause 9 adds the Call Control procedure description and state handling used by implementations and test activities.
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Frequently Asked Questions
SIST EN 300 175-5 V1.9.1:2006 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 5: Network (NWK) layer". This standard covers: The present document gives an introduction and overview of the complete Digital Enhanced Cordless Telecommunications (DECT) Common Interface (CI). The present document specifies the Network (NWK) layer. The NWK layer is part 5 of the EN 300 175 and layer 3 of the DECT protocol stack.The present document only specifies the C-plane (control plane) of the DECT NWK layer. It contains no specification for the U-plane (user plane) because the U-plane is null for all services at the DECT NWK layer. The C-plane contains all of the internal signalling information, and the NWK layer protocols are grouped into the following families of procedures: • Call Control (CC); • Supplementary Services (SS); • Connection Oriented Message Service (COMS); • ConnectionLess Message Service (CLMS); • Mobility Management (MM); • Link Control Entity (LCE). The present document uses the layered model principles and terminology as described in ITU-T Recommendation X.200 and ITU-T Recommendation X.210.
The present document gives an introduction and overview of the complete Digital Enhanced Cordless Telecommunications (DECT) Common Interface (CI). The present document specifies the Network (NWK) layer. The NWK layer is part 5 of the EN 300 175 and layer 3 of the DECT protocol stack.The present document only specifies the C-plane (control plane) of the DECT NWK layer. It contains no specification for the U-plane (user plane) because the U-plane is null for all services at the DECT NWK layer. The C-plane contains all of the internal signalling information, and the NWK layer protocols are grouped into the following families of procedures: • Call Control (CC); • Supplementary Services (SS); • Connection Oriented Message Service (COMS); • ConnectionLess Message Service (CLMS); • Mobility Management (MM); • Link Control Entity (LCE). The present document uses the layered model principles and terminology as described in ITU-T Recommendation X.200 and ITU-T Recommendation X.210.
SIST EN 300 175-5 V1.9.1:2006 is classified under the following ICS (International Classification for Standards) categories: 33.070.30 - Digital Enhanced Cordless Telecommunications (DECT); 35.100.30 - Network layer. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 300 175-5 V1.9.1:2006 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 5: Network (NWK) layer35.100.30Omrežni slojNetwork layer33.070.30'(&7Digital Enhanced Cordless Telecommunications (DECT)ICS:Ta slovenski standard je istoveten z:EN 300 175-5 Version 1.9.1SIST EN 300 175-5 V1.9.1:2006en01-marec-2006SIST EN 300 175-5 V1.9.1:2006SLOVENSKI
STANDARD
ETSI ETSI EN 300 175-5 V1.9.1 (2005-09) 2
Reference REN/DECT-000230-5 Keywords DECT, radio ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE
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Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http://portal.etsi.org/chaircor/ETSI_support.asp 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.
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DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTM and the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. SIST EN 300 175-5 V1.9.1:2006
ETSI ETSI EN 300 175-5 V1.9.1 (2005-09) 3
Contents Intellectual Property Rights.14 Foreword.14 1 Scope.15 2 References.15 3 Definitions and abbreviations.19 3.1 Definitions.19 3.2 Abbreviations.21 4 Overview of the NWK layer.24 5 Overview of procedures.26 5.1 General.26 5.2 Overview of Call Control (CC).26 5.2.1 General.26 5.2.2 Call establishment.26 5.2.2.1 Call setup.26 5.2.2.2 Service negotiation.27 5.2.3 Call connect.27 5.2.4 Call information.27 5.2.5 Service change.28 5.2.6 Call release.28 5.3 Overview of Supplementary Services (SS).28 5.3.1 General.28 5.3.2 Keypad protocol.29 5.3.3 Feature key management protocol.29 5.3.4 Functional protocol.29 5.4 Overview of Connection Oriented Message Service (COMS).29 5.4.1 General.29 5.4.2 COMS establishment.30 5.4.3 Service negotiation.30 5.4.4 COMS connect.30 5.4.5 COMS data transfer.30 5.4.6 COMS suspend and resume.30 5.4.7 COMS release.31 5.5 Overview of ConnectionLess Message Service (CLMS).31 5.5.1 Fixed length message service.31 5.5.2 Variable length message service.31 5.6 Overview of Mobility Management (MM).31 5.6.1 General.31 5.6.2 Identity procedures.32 5.6.3 Authentication procedures.32 5.6.4 Location procedures.33 5.6.5 Access rights procedures.33 5.6.6 Key allocation procedure.33 5.6.7 Parameter retrieval procedure.33 5.6.8 Ciphering related procedure.34 5.6.9 External protocol information procedure.34 5.7 Overview of Link Control Entity (LCE).34 5.7.1 General.34 5.7.2 Data Link Endpoint Identifier (DLEI).34 5.7.3 Data link establishment.35 5.7.4 Data link re-establishment.35 5.7.5 Data link release.35 5.7.6 Data link suspend and resume.35 5.7.7 Queuing of messages.36 SIST EN 300 175-5 V1.9.1:2006
ETSI ETSI EN 300 175-5 V1.9.1 (2005-09) 4
5.7.8 Request paging.36 6 Message functional definitions.36 6.1 Overview of message structures.36 6.1.1 Messages.36 6.1.2 Information elements.37 6.2 Message summaries.37 6.2.1 Summary of CC messages.37 6.2.2 Summary of CISS messages.38 6.2.3 Summary of COMS messages.38 6.2.4 Summary of CLMS messages.38 6.2.5 Summary of MM messages.39 6.2.6 Summary of LCE messages.39 6.3 S-FORMAT message functional contents.40 6.3.1 S-FORMAT message overview.40 6.3.2 CC-messages.40 6.3.2.1 {CC-SETUP}.40 6.3.2.2 {CC-INFO}.42 6.3.2.3 {CC-SETUP-ACK}.43 6.3.2.4 {CC-CALL-PROC}.44 6.3.2.5 {CC-ALERTING}.45 6.3.2.6 {CC-CONNECT}.46 6.3.2.7 {CC-CONNECT-ACK}.47 6.3.2.8 {CC-RELEASE}.47 6.3.2.9 {CC-RELEASE-COM}.48 6.3.2.10 {CC-SERVICE-CHANGE}.49 6.3.2.11 {CC-SERVICE-ACCEPT}.50 6.3.2.12 {CC-SERVICE-REJECT}.50 6.3.2.13 {CC-NOTIFY}.51 6.3.2.14 {IWU-INFO}.51 6.3.3 SS-messages (call related and call independent).52 6.3.3.1 {FACILITY}.52 6.3.3.2 {HOLD}.52 6.3.3.3 {HOLD-ACK}.53 6.3.3.4 {HOLD-REJECT}.53 6.3.3.5 {RETRIEVE}.53 6.3.3.6 {RETRIEVE-ACK}.54 6.3.3.7 {RETRIEVE-REJECT}.54 6.3.3.8 {CISS-REGISTER}.55 6.3.3.9 {CISS-RELEASE-COM}.55 6.3.4 COMS-messages.56 6.3.4.1 {COMS-SETUP}.56 6.3.4.2 {COMS-INFO}.56 6.3.4.3 {COMS-ACK}.57 6.3.4.4 {COMS-CONNECT}.57 6.3.4.5 {COMS-RELEASE}.58 6.3.4.6 {COMS-RELEASE-COM}.58 6.3.4.7 {COMS-NOTIFY}.59 6.3.5 CLMS-message.59 6.3.5.1 {CLMS-VARIABLE}.59 6.3.6 MM-messages.60 6.3.6.1 {ACCESS-RIGHTS-ACCEPT}.60 6.3.6.2 {ACCESS-RIGHTS-REJECT}.60 6.3.6.3 {ACCESS-RIGHTS-REQUEST}.61 6.3.6.4 {ACCESS-RIGHTS-TERMINATE-ACCEPT}.61 6.3.6.5 {ACCESS-RIGHTS-TERMINATE-REJECT}.62 6.3.6.6 {ACCESS-RIGHTS-TERMINATE-REQUEST}.62 6.3.6.7 {AUTHENTICATION-REJECT}.63 6.3.6.8 {AUTHENTICATION-REPLY}.63 6.3.6.9 {AUTHENTICATION-REQUEST}.64 6.3.6.10 {CIPHER-REJECT}.64 6.3.6.11 {CIPHER-REQUEST}.65 SIST EN 300 175-5 V1.9.1:2006
ETSI ETSI EN 300 175-5 V1.9.1 (2005-09) 5
6.3.6.12 {CIPHER-SUGGEST}.65 6.3.6.13 {DETACH}.66 6.3.6.14 {IDENTITY-REPLY}.67 6.3.6.15 {IDENTITY-REQUEST}.67 6.3.6.16 {KEY-ALLOCATE}.68 6.3.6.17 {LOCATE-ACCEPT}.68 6.3.6.18 {LOCATE-REJECT}.69 6.3.6.19 {LOCATE-REQUEST}.69 6.3.6.20 {MM-INFO-ACCEPT}.70 6.3.6.21 {MM-INFO-REJECT}.70 6.3.6.22 {MM-INFO-REQUEST}.71 6.3.6.23 {MM-INFO-SUGGEST}.72 6.3.6.24 {TEMPORARY-IDENTITY-ASSIGN}.72 6.3.6.25 {TEMPORARY-IDENTITY-ASSIGN-ACK}.73 6.3.6.26 {TEMPORARY-IDENTITY-ASSIGN-REJ}.73 6.3.6.27 {MM-IWU}.74 6.3.6.28 {MM-NOTIFY}.74 6.3.7 LCE-messages.75 6.3.7.1 {LCE-PAGE-RESPONSE}.75 6.3.7.2 {LCE-PAGE-REJECT}.75 6.4 B-FORMAT message functional contents.76 6.4.1 B-FORMAT message overview.76 6.4.2 {LCE-REQUEST-PAGE}.76 6.4.3 {CLMS-FIXED}.77 7 S-FORMAT message structures.77 7.1 Overview.77 7.2 Protocol Discrimination (PD) element.78 7.3 Transaction Identifier (TI) element.78 7.4 Message type element.79 7.4.1 Messages for CC.80 7.4.2 Messages for SS.80 7.4.3 Messages for COMS.80 7.4.4 Messages for CLMS.81 7.4.5 Messages for MM.81 7.4.6 Messages for LCE.81 7.5 Other information elements.82 7.5.1 Coding rules.82 7.5.2 Extensions of codesets.84 7.5.3 Locking shift procedure.84 7.5.4 Non-locking shift procedure.85 7.5.5 Display and keypad elements.85 7.5.6 Repeated elements.85 7.6 Fixed length information elements.86 7.6.1 Summary.86 7.6.2 Sending complete, delimiter request and use TPUI.86 7.6.3 Repeat indicator.87 7.6.4 Basic service.87 7.6.5 Single display.88 7.6.6 Single keypad.88 7.6.7 Release reason.88 7.6.8 Signal.89 7.6.9 Timer restart.90 7.6.10 Test hook control.91 7.7 Variable length information elements.91 7.7.1 Summary.91 7.7.2 Allocation type.93 7.7.3 Alphanumeric.94 7.7.4 Auth type.95 7.7.5 Call attributes.96 7.7.6 Call identity.99 7.7.7 Called party number.99 SIST EN 300 175-5 V1.9.1:2006
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7.7.8 Called party subaddress.100 7.7.9 Calling party number.101 7.7.10 Cipher info.102 7.7.11 Connection attributes.103 7.7.12 Connection identity.105 7.7.13 Duration.107 7.7.14 End-to-end compatibility.107 7.7.15 Facility.111 7.7.16 Feature activate.111 7.7.17 Feature indicate.113 7.7.18 Fixed identity.115 7.7.19 Identity type.116 7.7.20 Info type.117 7.7.21 InterWorking Unit (IWU) attributes.118 7.7.22 IWU packet.123 7.7.23 IWU to IWU.124 7.7.24 Key.126 7.7.25 Location area.126 7.7.26 Multi-display.127 7.7.27 Multi-keypad.128 7.7.28 NetWorK (NWK) assigned identity.128 7.7.29 Network parameter.129 7.7.30 Portable identity.130 7.7.31 Progress indicator.134 7.7.32 RAND.135 7.7.33 Rate parameters.135 7.7.34 Reject reason.136 7.7.35 RES.137 7.7.36 RS.138 7.7.37 Segmented info.138 7.7.38 Service change info.139 7.7.39 Service class.140 7.7.40 Setup capability.141 7.7.41 Terminal capability.142 7.7.42 Transit delay.146 7.7.43 Window size.147 7.7.44 ZAP field.147 7.7.45 Escape to proprietary.148 7.7.46 Model identifier.148 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 7.7.52 Authentication Reject Parameter.152 8 B-FORMAT message structures.152 8.1 General.152 8.2 LCE request paging messages.153 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.161 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 SIST EN 300 175-5 V1.9.1:2006
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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.165 9.2.2.1 State F-00: "NULL".165 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.167 9.3.1.4 Connection of U-plane.168 9.3.1.5 Overlap sending.168 9.3.1.6 Call proceeding.169 9.3.1.7 Call confirmation.169 9.3.1.8 Call connection.170 9.3.1.9 Expiry of timer .170 9.3.2 FT initiated call establishment (incoming call).170 9.3.2.1 Call request.
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