SIST EN 300 757 V1.5.1:2006
(Main)Digital Enhanced Cordless Telecommunications (DECT); Low Rate Messaging Service (LRMS) including Short Messaging Service (SMS)
- Abstract
The Low Rate Messaging Service (LRMS), specified in the present document, provides a means for the slow, acknowledged or unacknowledged, transfer of multimedia message objects, including the Short Message Service (SMS). It provides both point-to-point and point-to-multipoint messaging. This service may be used for private and public roaming applications. The present document defines the requirements on the Physical (PHY), Medium Access Control (MAC), Data Link Control (DLC) and Network (NWK) layers of DECT. The present document also specifies management entity requirements and generic interworking conventions, which ensure the efficient use of the DECT spectrum. The present document further mandates how to implement a GSM like Short Message Service (SMS), Point-to-point (PTP), which uses a sub-set of the Low Rate Messaging Service (LRMS) mentioned before as a bearer service.
SMS-PTP includes the following two services:
- SMS Mobile Originated (SMS-MO), for transport of short messages from PT to FT;
- SMS Mobile Terminated (SMS-MT), for transport of short messages from FT to PT.
Definition of Point-To-Multipoint (PTM) SMS is outside the scope of the present document. In order to facilitate re-use of excising GSM Service Centres, the present document applies the upper GSM protocols up-to and including the GSM SMS-RP protocol. Therefore, interworking functions handling the encapsulation of GSM SMS-RP messages are specified. The SMS or LRMS applications are outside the scope of the present document. So is the network behind the FP. Any information provided concerning applications or the network behind the FP is provided for informative, descriptive reasons only.
- 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 300 757 V1.5.1:2006 is the Slovenian adoption of ETSI EN 300 757 V1.5.1 for Digital Enhanced Cordless Telecommunications (DECT). It specifies the Low Rate Messaging Service (LRMS), including Short Message Service (SMS), for DECT systems, and sets requirements for the Physical (PHY), Medium Access Control (MAC), Data Link Control (DLC) and Network (NWK) layers, plus management and interworking rules. It is intended for DECT implementers who need point-to-point or point-to-multipoint messaging, including GSM-like SMS-PTP support.
What does SIST EN 300 757 V1.5.1:2006 specify?
SIST EN 300 757 V1.5.1:2006 specifies how DECT carries slow, acknowledged or unacknowledged multimedia message objects through LRMS. It also specifies a GSM-like Short Message Service (SMS), point-to-point (PTP), built on a subset of LRMS as the bearer service.
The scope covers both point-to-point and point-to-multipoint messaging and says the service may be used for private and public roaming applications. SMS-PTP includes SMS Mobile Originated (SMS-MO) from Portable Part (PT) to Fixed Part (FT) and SMS Mobile Terminated (SMS-MT) from FT to PT. Point-to-multipoint SMS is outside the scope, as are the SMS or LRMS applications themselves and the network behind the Fixed Part (FP).
The document is organized into service descriptions, LRMS requirements, MMSP protocol definition, SMS requirements, and annexes.
| Annex | What it covers |
|---|---|
| Annex A | Support of MMSP by the DECT lower layers, including profile-specific information elements, mapping rules, and network layer segmentation rules for LRMS PTP |
| Annex C | Summary of SMS-RP requirements and message sequences |
What are the key requirements of SIST EN 300 757 V1.5.1:2006?
SIST EN 300 757 V1.5.1:2006 defines the service model, protocol behavior, message formats, and interworking rules needed to make LRMS and SMS work consistently across DECT layers. For implementers, the important point is not only what can be sent, but which service classes, protocol elements, timers, and mappings must be supported for a given PTP or PTM profile.
LRMS service behavior and performance
Clause 4 describes LRMS as a service for messaging with both PTP and PTM operation. Table 4.2 sets service objectives for throughput, error rate, minimum SDU size, and supported segmented SDU size for SMS, LRMS PTP and LRMS PTM. In practice, this is the part to check when deciding whether a device or system can carry the intended payload sizes and traffic patterns.
Layer-by-layer requirements
Clause 5 assigns requirements to the PHY, MAC, DLC and NWK layers, and also to management entity behavior. The MAC layer tables list supported services, messages, functions, timers and procedures, with many items conditional on whether LRMS PTP, LRMS PTM, protected B-field access or encryption are supported. For a designer, that means feature support is profile-dependent and must be matched to the intended bearer and security capabilities.
MAC capability, timer and procedure support
Clause 5.4.3 identifies the MAC-side capabilities that matter for LRMS operation, including paging, system identities, system information, encryption and setup-related functions. The same clause defines timer support and procedure support, such as link establishment, release, handover, receiver scan and RFPI handshake. In practice, these tables tell an implementer what state handling and timing supervision the MAC layer must provide for interoperable operation.
DLC class support and frame handling
Clause 5.5 defines DLC requirements for C-plane and U-plane use, including Class U, Class A and Class B services. It also specifies C-plane frame structure, message types, timers and protocol error handling, with separate support rules for class A and class B features such as segmentation, fragmentation, link establishment, release, suspension and resumption. This matters because reliable messaging depends on the right DLC class and on handling acknowledgements, sequence numbers and recovery correctly.
MMSP architecture and message procedures
Clause 6 defines the Multimedia Messaging Service Protocol (MMSP) with two parts: call control (C-MMS) and messaging (M-MMS). It describes horizontal and vertical interactions, service access points, primitives, and procedures such as SEND, SEND-REQ, RETRIEVE, RETRIEVE-HDR, EXT-CMD, STATUS and ESC-CMD. For implementation, this clause is the mapping layer between the DECT bearer and higher-level message handling.
SMS-PTP interworking
Clause 7 defines the GSM-like SMS-PTP behavior, including outgoing and incoming messaging calls, message encapsulation, authentication and ciphering, and message/primitive interworking. It uses upper GSM protocols up to and including GSM SMS-RP, and specifies how GSM SMS messages are encapsulated for transport over DECT. In practice, this is what lets existing SMS interworking and service-centre logic be reused.
Segmentation and lower-layer support
Annex A requires certain information elements in the {CLMS-VARIABLE} message and applies segmentation rules when the message length exceeds 58 octets. It states that segmentation applies only to the <> element, while headers are not duplicated in subsequent segmented messages. This is important for payload handling, because it defines what is split across segments and what stays intact.
What terms does SIST EN 300 757 V1.5.1:2006 define?
- Low Rate Messaging Service (LRMS) - The DECT service defined for slow transfer of multimedia message objects, with acknowledged or unacknowledged operation.
- Short Message Service (SMS) - The GSM-like message service specified here as a special case of LRMS for DECT.
- SMS Mobile Originated (SMS-MO) - A short message transferred from PT to FT.
- SMS Mobile Terminated (SMS-MT) - A short message transferred from FT to PT.
- Point-to-Point (PTP) - A messaging mode between one portable side and one fixed side.
- Point-to-Multipoint (PTM) - A messaging mode where one side communicates with multiple destinations.
- Multimedia Messaging Service Protocol (MMSP) - The protocol defined in clause 6 for MMS call control and message transfer.
- InterWorking Unit (IWU) - The interworking function used to connect DECT messaging with external message systems or services.
Who uses SIST EN 300 757 V1.5.1:2006?
SIST EN 300 757 V1.5.1:2006 is used by DECT equipment designers who implement messaging services in Portable Parts, Fixed Parts and interworking units. It is also used by teams integrating DECT with GSM-like SMS service centres, because the standard specifies encapsulation and upper-protocol handling up to GSM SMS-RP.
Test laboratories and conformance teams use it to verify service classes, timers, frame formats, message codings and error handling. Quality managers and buyers use it to check whether a product supports LRMS PTP, LRMS PTM, SMS-MO or SMS-MT, and which lower-layer and security features are included.
What changed in SIST EN 300 757 V1.5.1:2006 from the previous edition?
SIST EN 300 757 V1.5.1:2006 replaces the former ETS 300 757, known as the E.2 profile, and the former ETS 301 678, known as CTM FP2. It also states that it defines profiles for DECT systems conforming to EN 300 175-1, parts 1 to 8.
Which standards are used with SIST EN 300 757 V1.5.1:2006?
| Standard | What it contributes |
|---|---|
| ETSI EN 300 175-1 to EN 300 175-8 | The DECT common interface: overview, PHY, MAC, DLC, NWK, identities and addressing, security, and speech coding/transmission |
| ETSI EN 300 444 | GAP, used for DECT access and call-related behavior referenced by the SMS procedures |
| ETSI ETS 300 559 | GSM SMS support on the mobile radio interface |
| ISO/IEC 8073 | The connection-mode transport service used in checksum calculation references |
| ETSI ETS 300 764 | DECT/GSM interworking profile for SMS point-to-point and cell broadcast |
| ETSI TS 101 863-5 | DECT/UMTS interworking profile, Part 5 for SMS point-to-point and cell broadcast |
EN 300 175-5 is also used for segmentation rules referenced in Annex A.
What does the SIST EN 300 757 V1.5.1:2006 document contain?
The document contains service descriptions, capability tables, procedure definitions, message codings, timer values and state-dependent behavior for LRMS and SMS. Clause 5 includes detailed tables for supported MAC messages, parameters, functions, timers and procedures, while clause 6 defines MMSP messages, primitives, information elements and multi-part message behavior.
Clause 7 contains SMS-specific reference configurations, interoperability requirements, call procedures and class B link procedures, including formatted frame values and release sequences. Annex A gives the detailed information-element codings and mapping rules needed to implement MMSP over DECT lower layers, and Annex C summarizes SMS-RP requirements and message sequences for implementation work and interoperability checking.
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Frequently Asked Questions
SIST EN 300 757 V1.5.1:2006 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Digital Enhanced Cordless Telecommunications (DECT); Low Rate Messaging Service (LRMS) including Short Messaging Service (SMS)". This standard covers: The Low Rate Messaging Service (LRMS), specified in the present document, provides a means for the slow, acknowledged or unacknowledged, transfer of multimedia message objects, including the Short Message Service (SMS). It provides both point-to-point and point-to-multipoint messaging. This service may be used for private and public roaming applications. The present document defines the requirements on the Physical (PHY), Medium Access Control (MAC), Data Link Control (DLC) and Network (NWK) layers of DECT. The present document also specifies management entity requirements and generic interworking conventions, which ensure the efficient use of the DECT spectrum. The present document further mandates how to implement a GSM like Short Message Service (SMS), Point-to-point (PTP), which uses a sub-set of the Low Rate Messaging Service (LRMS) mentioned before as a bearer service. SMS-PTP includes the following two services: - SMS Mobile Originated (SMS-MO), for transport of short messages from PT to FT; - SMS Mobile Terminated (SMS-MT), for transport of short messages from FT to PT. Definition of Point-To-Multipoint (PTM) SMS is outside the scope of the present document. In order to facilitate re-use of excising GSM Service Centres, the present document applies the upper GSM protocols up-to and including the GSM SMS-RP protocol. Therefore, interworking functions handling the encapsulation of GSM SMS-RP messages are specified. The SMS or LRMS applications are outside the scope of the present document. So is the network behind the FP. Any information provided concerning applications or the network behind the FP is provided for informative, descriptive reasons only.
The Low Rate Messaging Service (LRMS), specified in the present document, provides a means for the slow, acknowledged or unacknowledged, transfer of multimedia message objects, including the Short Message Service (SMS). It provides both point-to-point and point-to-multipoint messaging. This service may be used for private and public roaming applications. The present document defines the requirements on the Physical (PHY), Medium Access Control (MAC), Data Link Control (DLC) and Network (NWK) layers of DECT. The present document also specifies management entity requirements and generic interworking conventions, which ensure the efficient use of the DECT spectrum. The present document further mandates how to implement a GSM like Short Message Service (SMS), Point-to-point (PTP), which uses a sub-set of the Low Rate Messaging Service (LRMS) mentioned before as a bearer service. SMS-PTP includes the following two services: - SMS Mobile Originated (SMS-MO), for transport of short messages from PT to FT; - SMS Mobile Terminated (SMS-MT), for transport of short messages from FT to PT. Definition of Point-To-Multipoint (PTM) SMS is outside the scope of the present document. In order to facilitate re-use of excising GSM Service Centres, the present document applies the upper GSM protocols up-to and including the GSM SMS-RP protocol. Therefore, interworking functions handling the encapsulation of GSM SMS-RP messages are specified. The SMS or LRMS applications are outside the scope of the present document. So is the network behind the FP. Any information provided concerning applications or the network behind the FP is provided for informative, descriptive reasons only.
SIST EN 300 757 V1.5.1:2006 is classified under the following ICS (International Classification for Standards) categories: 33.070.30 - Digital Enhanced Cordless Telecommunications (DECT). The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 300 757 V1.5.1:2006 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)
SLOVENSKI STANDARD
01-marec-2006
'LJLWDOQHL]EROMãDQHEUH]YUYLþQHWHOHNRPXQLNDFLMH'(&7±1L]NRKLWURVWQDVWRULWHY
VSRURþDQMD/506YNOMXþQRVVWRULWYLMRNUDWNLKVSRURþLO606
Digital Enhanced Cordless Telecommunications (DECT); Low Rate Messaging Service
(LRMS) including Short Messaging Service (SMS)
Ta slovenski standard je istoveten z: EN 300 757 Version 1.5.1
ICS:
33.070.30 'LJLWDOQHL]EROMãDQH Digital Enhanced Cordless
EUH]YUYLþQHWHOHNRPXQLNDFLMH Telecommunications (DECT)
'(&7
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
European Standard (Telecommunications series)
Digital Enhanced Cordless Telecommunications (DECT);
Low Rate Messaging Service (LRMS)
including Short Messaging Service (SMS)
2 ETSI EN 300 757 V1.5.1 (2004-09)
Reference
REN/DECT-A0226
Keywords
data, DECT, profile, SMS
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ETSI
3 ETSI EN 300 757 V1.5.1 (2004-09)
Contents
Intellectual Property Rights.8
Foreword.8
Introduction .8
1 Scope.9
2 References.10
3 Definitions, symbols and abbreviations .11
3.1 Definitions.11
3.2 Symbols.11
3.3 Abbreviations.11
4 Description of services.13
4.1 General.13
4.2 Low Rate Messaging Service (LRMS).13
4.2.1 Point-To-Point (PTP).13
4.2.2 Point-To-Multipoint (PTM).14
4.2.3 Short Message Service (SMS) .14
4.2.4 Service objectives.14
5 Low Rate Messaging Service (LRMS) .15
5.1 Reference configuration.15
5.2 Functional description.15
5.2.1 General.15
5.2.2 Exceptions for Point-To-Multipoint (PTM) service .16
5.2.2.1 MMS relations to outside networks (horizontal model).16
5.2.2.2 Architecture.16
5.2.2.3 MMS relations to the upper/lower layers (vertical model).16
5.2.2.4 Phases of the horizontal interactions.16
5.3 Physical layer requirements.16
5.4 MAC layer requirements .17
5.4.1 Requirements Point-To-Point (PTP) service.17
5.4.2 Requirements Point-To-Multipoint (PTM) service.17
5.4.3 Capabilities.18
5.4.3.1 Services.18
5.4.3.2 Protocol parameters.18
5.4.3.3 Messages.19
5.4.3.4 Message parameters.21
5.4.3.5 Functions implemented.23
5.4.3.6 Timer support.24
5.4.3.7 Procedure support.24
5.5 DLC layer requirements .25
5.5.1 Requirements C-plane Point-To-Point (PTP) service .25
5.5.2 Requirements C-plane Point-To-Multipoint (PTM) service .25
5.5.3 Requirements U-plane.26
5.5.4 Capabilities.26
5.5.4.1 C-plane services.26
5.5.4.2 C-plane procedures.26
5.5.4.2.1 Point-to-point acknowledged operation.26
5.5.4.2.2 Unacknowledged operation.28
5.5.4.2.3 Broadcast operation.28
5.5.4.2.4 Management procedures.28
5.5.4.3 C-plane PDU frame structure.29
5.5.4.4 C-plane messages.30
5.5.4.5 C-plane timers.34
5.5.4.6 C-plane protocol error handling .35
5.6 Network layer requirements .35
ETSI
4 ETSI EN 300 757 V1.5.1 (2004-09)
5.6.1 Requirements Point-To-Point (PTP) service.35
5.6.2 Requirements Point-To-Multipoint (PTM) service.35
5.7 Management entity requirements .36
5.8 Generic interworking conventions .36
5.8.1 MMSP procedures.36
5.8.2 Multimedia Messaging Service - Service Access Point (MMS-SAP) .36
5.8.3 MMSP primitives Point-To Point (PTP) service .37
5.8.3.1 C-MMS primitives.37
5.8.3.2 M-MMS primitives.37
5.8.3.3 Parameters.37
5.8.4 MMSP primitives Point-To-Multipoint (PTM) Service .37
5.8.4.1 M-MMS primitives.37
5.8.4.2 Parameters.37
6 MMSP protocol definition.38
6.1 General.38
6.2 Functional description.38
6.2.1 General.38
6.2.2 MMS relations to outside networks (horizontal model).39
6.2.3 Architecture.40
6.2.3.1 General.40
6.2.3.2 MMSP call control part (C-MMS) .40
6.2.3.3 MMSP messaging part (M-MMS) .40
6.2.4 MMS relations to the upper/lower layers (vertical model) .41
6.2.4.1 General.41
6.2.4.2 MMS relation to the DECT upper layers .42
6.2.4.2.1 General.42
6.2.4.2.2 M-MMS.42
6.2.4.2.3 C-MMS.42
6.2.5 MMS relations to outside networks (vertical and horizontal model).42
6.2.5.1 General.42
6.2.5.2 Phases of the horizontal interactions.42
6.2.5.2.1 General.42
6.2.5.2.2 PP originated outgoing MMS call .43
6.2.5.2.3 Example of a typical PP initiated message .44
6.2.5.2.4 PP terminated incoming MMS call.44
6.3 MMSP protocol messages and procedures.45
6.3.1 C-MMS messages and procedures.45
6.3.2 M-MMS.45
6.3.2.1 Summary of the M-MMS messages.45
6.3.2.2 MMS SEND procedure.46
6.3.2.2.1 {MMS-SEND} message contents.46
6.3.2.2.2 {MMS-SEND-RPY} message contents.47
6.3.2.3 MMS SEND-REQ procedure.47
6.3.2.3.1 {MMS-SEND-REQ} message contents.48
6.3.2.3.2 {MMS-SEND-RPY} message contents.48
6.3.2.4 MMS RETRIEVE procedure .48
6.3.2.4.1 {MMS-RETRIEVE} message contents.49
6.3.2.4.2 {MMS-RETRIEVE-RPY} message contents.49
6.3.2.5 MMS RETRIEVE-HDR procedure .50
6.3.2.5.1 {MMS-RETRIEVE-HDR} message contents.50
6.3.2.5.2 {MMS-RETRIEVE-RPY} message contents.51
6.3.2.6 MMS-EXT-CMD procedure.51
6.3.2.6.1 {MMS-EXT-CMD} message contents.52
6.3.2.6.2 {MMS-EXT-CMD-RPY} message contents.52
6.3.2.7 MMS-STATUS procedures.52
6.3.2.7.1 {MMS-STATUS} message contents.53
6.3.2.7.2 {MMS-STATUS-RPY} message contents.53
6.3.2.8 MMS-ESC-CMD procedure.54
6.3.2.8.1 {MMS-ESC-CMD} message contents .54
6.3.2.8.2 {MMS-ESC-CMD-RPY} message contents.55
6.3.2.8.3 Generic interworking conventions for the {MMS-ESC-CMD} command and reply.55
ETSI
5 ETSI EN 300 757 V1.5.1 (2004-09)
6.3.2.9 Procedures for the use of the MMS-message identifier .55
6.3.2.10 Multi-part message procedures.55
6.3.2.10.1 Multi-part send procedures.56
6.3.2.10.2 Multi-part retrieve procedures .56
6.3.2.11 Unsupported MMS command and IE compatibility procedures .56
6.3.2.11.1 Unsupported MMS commands procedure .56
6.3.2.11.2 Unsupported Information elements procedure .56
6.4 MMSP information elements .57
6.4.1 Summary of M-MMSP information elements .57
6.5 Parameters of M-MMSP service primitives .57
6.5.1 M_MMS_SEND- {req, ind}.58
6.5.2 M_MMS_SEND_REQ- {req, ind}.58
6.5.3 M_MMS_SEND_RPY- {req, ind} .59
6.5.4 M_MMS_RETRIEVE- {req, ind}.59
6.5.5 M_MMS_RETRIEVE_RPY- {req, ind} .60
6.5.6 M_MMS_EXT_CMD- {req, ind} .60
6.5.7 M_MMS_EXT_CMD_RPY- {req, ind}.61
6.5.8 M_MMS_STATUS- {req, ind} .61
6.5.9 M_MMS_STATUS_RPY- {req, ind} .62
6.5.10 M_MMS_ESC_CMD- {req, ind}.62
6.5.11 M_MMS_ESC_CMD_RPY- {req, ind}.63
7 Short Message Service (SMS).63
7.1 Feature and service definitions.63
7.1.1 Application features.63
7.1.2 MMS features.63
7.1.3 NWK features.63
7.1.4 DLC services.63
7.2 General requirements.64
7.2.1 Reference configurations.64
7.2.2 Protocol architecture.64
7.3 Interoperability requirements.65
7.3.1 Application features.65
7.3.2 MMS features.65
7.3.3 NWK features.66
7.3.4 DLC services.66
7.3.5 MAC services.66
7.3.6 PHL services.66
7.3.7 Application feature to procedure mapping.66
7.3.8 MMS feature to procedure mapping .67
7.3.9 NWK feature to procedure mapping.67
7.3.10 DLC feature to procedure mapping .67
7.4 Application procedures.68
7.4.1 Incoming message storage.68
7.4.2 Message encapsulation.68
7.4.3 General interworking requirements .68
7.4.3.1 Mapping of SMS message transfers onto CC- transactions .68
7.4.3.2 Authentication and ciphering .68
7.4.4 Message/primitive interworking.68
7.5 MMS procedures.68
7.5.1 Messaging send procedure.69
7.6 NWK layer procedure descriptions .70
7.6.1 Summary of outgoing call messages, normal case.70
7.6.2 Outgoing messaging call request .70
7.6.3 Outgoing messaging call connect .71
7.6.4 Summary of incoming call messages, normal case.71
7.6.5 Incoming messaging call request .71
7.6.6 Incoming messaging call connect .72
7.6.7 Message transfer.72
7.6.8 Terminal capability indication .73
7.7 DLC layer procedures .73
7.7.1 Class B link establishment.73
ETSI
6 ETSI EN 300 757 V1.5.1 (2004-09)
7.7.1.1 Associated procedures.75
7.7.1.1.1 Timer management .75
7.7.1.1.2 Re-transmission counter management.75
7.7.1.1.3 Multiple frame operation variables management .75
7.7.1.2 Exceptional cases.76
7.7.1.2.1 Timer expiry .76
7.7.1.2.2 Receipt of a request for link release .76
7.7.1.2.3 Receipt of an indication for a connection release .76
7.7.2 Class B multiple frame operation .76
7.7.2.1 Class B multiple frame operation with segment reassemble.79
7.7.2.2 Associated procedures.79
7.7.2.2.1 Timer management .79
7.7.2.2.2 Re-transmission counter management.80
7.7.2.2.3 Multiple frame operation variables management .80
7.7.2.2.4 Exception handling.80
7.7.2.3 Exceptional cases.80
7.7.2.3.1 Timer expiry .80
7.7.2.3.2 Receipt of a request for link release .80
7.7.2.3.3 Receipt of an indication for a connection release .80
7.7.2.3.4 DLC wants to make a connection handover .80
7.7.3 Class B link release.80
7.7.3.1 Associated procedures.82
7.7.3.1.1 LLME U-plane release .82
7.7.3.1.2 LLME release a MAC connection.82
7.7.3.1.3 Timer management .83
7.7.3.2 Exceptional cases.83
7.7.3.2.1 Timer expiry .83
7.7.3.2.2 Receipt of an indication for a connection release .83
7.7.3.2.3 Collision of identical transmitted and received commands .83
7.7.4 Class B link suspension and resumption.83
7.7.4.1 Unacknowledged suspend.83
7.7.4.2 Class B link resumption .83
7.7.4.3 Associated procedures.84
7.7.4.3.1 Timer management .84
7.7.4.4 Exceptional cases.84
7.7.4.4.1 Timer expiry .84
7.7.4.4.2 Receipt of an indication for a connection release .84
7.7.5 Class B link re-establishment.84
7.7.5.1 Associated procedures.86
7.7.5.1.1 Timer management .86
7.7.5.2 Exceptional cases.87
7.7.5.2.1 Timer expiry .87
7.7.5.2.2 Receipt of a request for link release .87
7.7.5.2.3 Receipt of an indication for a connection release .87
7.7.5.2.4 Collision of identical transmitted and received commands .87
7.8 MAC layer procedures .87
7.9 PHY layer requirements .87
7.10 Management procedures.87
7.10.1 Broadcast attribute management.87
Annex A (normative): Support of MMSP by the DECT lower layers.88
A.1 Profile-specific information elements.88
A.1.1 MMS Generic Header information element .88
A.1.2 MMS Object Header information element .92
A.1.3 MMS Extended Header information element.96
A.2 MMSP message implementation.97
A.2.1 General.97
A.2.2 C-MMS primitives mapping rules.98
A.2.2.1 LRMS PTP C-MMS primitives .98
A.2.2.2 LRMS PTM C-MMS primitives.98
A.2.3 M-MMS message mapping rules.98
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7 ETSI EN 300 757 V1.5.1 (2004-09)
A.2.3.1 General rules for LRMS PTP.98
A.2.3.2 General rules for LRMS PTM .98
A.2.3.3 Information element mapping rules .98
A.3 Network layer segmentation rules for LRMS PTP.99
A.3.1 Procedure at the sending side .99
A.3.2 Procedure at the receiving side.99
Annex B (normative): Profile selection coding.100
B.1 <> coding.100
B.2 <> coding.100
B.3 <> coding.101
Annex C (informative): Typical message mapping sequences.102
C.1 Summary of SMS-RP requirements.102
C.2 Message sequences.102
Annex D (informative): Bibliography.104
History .105
ETSI
8 ETSI EN 300 757 V1.5.1 (2004-09)
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 ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
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 ETSI 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 ETSI Project Digital Enhanced Cordless
Telecommunications (DECT).
National transposition dates
Date of adoption of this EN: 17 September 2004
Date of latest announcement of this EN (doa): 31 December 2004
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 June 2005
Date of withdrawal of any conflicting National Standard (dow): 30 June 2005
Introduction
The present document replaces the former ETS 300 757, known as the E.2 profile, and the former ETS 301 678, known
as CTM FP2. It defines profiles for Digital Enhanced Cordless Telecommunications (DECT) systems conforming
to EN 300 175-1, parts 1 [1] to 8 [8].
Clause 4 and 5 define the sub-services that the DECT Low Rate Message Service (LRMS) comprises. Clause 6
specifies the Multi-media Messaging Services Protocol (MMSP) on which the provision of the LRMS is based;
elements of procedures and special fields codings are further defined in annexes A and B.
Clause 7 defines the implementation of a GSM like Short Message Service (SMS) as a special case of the LRMS.
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9 ETSI EN 300 757 V1.5.1 (2004-09)
1 Scope
The Low Rate Messaging Service (LRMS), specified in the present document, provides a means for the slow,
acknowledged or unacknowledged, transfer of multimedia message objects, including the Short Message
Service (SMS). It provides both point-to-point and point-to-multipoint messaging. This service may be used for private
and public roaming applications.
The present document defines the requirements on the Physical (PHY), Medium Access Control (MAC), Data Link
Control (DLC) and Network (NWK) layers of DECT. The present document also specifies management entity
requirements and generic interworking conventions, which ensure the efficient use of the DECT spectrum.
The present document further mandates how to implement a GSM like Short Message Service (SMS), Point-to-point
(PTP), which uses a sub-set of the Low Rate Messaging Service (LRMS) mentioned before as a bearer service.
SMS-PTP includes the following two services:
- SMS Mobile Originated (SMS-MO), for transport of short messages from PT to FT;
- SMS Mobile Terminated (SMS-MT), for transport of short messages from FT to PT.
Definition of Point-To-Multipoint (PTM) SMS is outside the scope of the present document.
In order to facilitate re-use of excising GSM Service Centres, the present document applies the upper GSM protocols
up-to and including the GSM SMS-RP protocol. Therefore, interworking func
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