SIST EN 300 175-3 V1.9.1:2006

• Abstract:

  The present document gives an introduction and overview of the complete Digital Enhanced Cordless Telecommunications (DECT) Common Interface (CI). The present document of the DECT CI specifies the Medium Access Control (MAC) layer. The MAC layer is part 3 of the DECT Common Interface standard and layer 2a of the DECT protocol stack.; It specifies three groups of MAC services:; • the broadcast message control service;; • the connectionless message control service; and; • the multi-bearer control service.; It also specifies the logical channels that are used by the above mentioned services, and how they are multiplexed and mapped into the Service Data Units (SDUs) that are exchanged with the Physical Layer (PHL).

• Status: Published
• Publication Date: 28-Feb-2006
• ICS: 33.070.30 - Digital Enhanced Cordless Telecommunications (DECT)
• 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-Mar-2006
• Due Date: 01-Mar-2006
• Completion Date: 01-Mar-2006
• Ref Project: ETSI EN 300 175-3 V1.9.1 (2005-09) - Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 3: Medium Access Control (MAC) layer

Overview

SIST EN 300 175-3 V1.9.1:2006 is a standard published by the Slovenski inštitut za standardizacijo (SIST), harmonized with ETSI EN 300 175-3. This document defines the Medium Access Control (MAC) layer as part of the Digital Enhanced Cordless Telecommunications (DECT) Common Interface (CI). The MAC layer acts as layer 2a within the DECT protocol stack and is fundamental for enabling efficient and reliable communication over the DECT radio interface.

The standard provides specifications for three main MAC service groups:

• Broadcast Message Control
• Connectionless Message Control
• Multi-Bearer Control

It details the logical channels these services use, the multiplexing methods involved, and the mapping of these channels to Service Data Units exchanged with the Physical Layer. This enables DECT devices to operate efficiently in dynamic radio environments.

Key Topics

1. Structure and Reference Model

• Defines the MAC layer reference model within the DECT CI.
• Describes the relationship between the MAC layer and the physical layer.

2. MAC Layer Services

• Broadcast Message Control (BMC): Handles system-wide information broadcasting to all terminals.
• Connectionless Message Control (CMC): Supports the exchange of individual messages without establishing a persistent connection.
• Multi-Bearer Control (MBC): Facilitates the setup and management of multiple simultaneous communication bearers.

3. Logical Channels and Multiplexing

• Specifies the logical channels (C-plane, U-plane, control channels) and their mapping.
• Explains how multiple services can share radio resources through time and bit multiplexing.

4. State Definitions and Bearer Types

• Outlines the operating states for DECT equipment such as Portable Parts (PP) and Radio Fixed Parts (RFP).
• Defines various bearer types (basic, advanced, symmetric, asymmetric) for supporting versatile services.

5. MAC Layer Messaging

• Details the structure of MAC-layer messages, including headers and information fields.
• Covers system information, paging, connection control, encryption, and error control mechanisms.

Applications

The Medium Access Control layer as specified in SIST EN 300 175-3 V1.9.1:2006 is central to the operation of all DECT-based cordless communication systems. Key applications include:

• Cordless Telephony Systems: Ensures efficient channel access and communication between handsets and base stations.
• Wireless Office Solutions: Supports high-capacity, multi-user voice and data communication in business environments.
• Integrated Wireless Systems: Facilitates interoperability and enhanced performance for use in residential, industrial, and public access DECT deployments.
• Telecommunications Infrastructure: Forms part of the backbone protocol stack for fixed-wireless access and wireless local loop services.

Adherence to this standard ensures compatibility, operational efficiency, and quality of service in all systems utilizing the DECT Common Interface.

Related Standards

For holistic DECT system implementation, SIST EN 300 175-3 V1.9.1:2006 should be considered alongside other key standards:

• SIST EN 300 175-1: Overview and Technical Requirements
• SIST EN 300 175-2: Physical Layer (PHL)
• SIST EN 300 175-4: Data Link Control Layer (DLC)
• SIST EN 300 175-5+: Higher Layer Specifications

These documents collectively define the DECT Common Interface from radio physical characteristics to application-level protocols, ensuring interworking across multiple manufacturers and environments.

Keywords: DECT, Common Interface, Medium Access Control, MAC Layer, wireless communications, cordless telephony, logical channels, multiplexing, broadcast services, connectionless messaging, multi-bearer control, standard, SIST, ETSI.

SLOVENSKI STANDARD
01-marec-2006
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GHO3ODVWNUPLOMHQMDGRVWRSDGRSUHQRVQHJDPHGLMD0$&
Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 3:
Medium Access Control (MAC) layer
Ta slovenski standard je istoveten z: EN 300 175-3 Version 1.9.1
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);
Common Interface (CI);
Part 3: Medium Access Control (MAC) layer

2 ETSI EN 300 175-3 V1.9.1 (2005-09)

Reference
REN/DECT-000228-3
Keywords
DECT, MAC, radio
ETSI
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ETSI
3 ETSI EN 300 175-3 V1.9.1 (2005-09)
Contents
Intellectual Property Rights.12
Foreword.12
1 Scope.13
2 References.13
3 Definitions, symbols and abbreviations .14
3.1 Definitions.14
3.2 Symbols.14
3.3 Abbreviations.14
4 Description of the MAC layer .16
4.1 MAC layer reference model .16
4.1.1 General.17
4.1.2 Cluster Control Function (CCF) .17
4.1.3 Cell Site Functions (CSF) .17
4.1.4 Relationship to physical layer elements.17
4.2 Frame and multiframe structures.18
4.2.1 General.18
4.2.2 Frame structure.18
4.2.3 Multiframe structure.19
4.3 State definitions.20
4.3.1 PP states.20
4.3.2 RFP states.21
5 Overview of MAC layer services.22
5.1 General.22
5.1.1 Broadcast Message Control (BMC).22
5.1.2 Connectionless Message Control (CMC) .22
5.1.3 Multi-Bearer Control.22
5.2 Service descriptions.22
5.2.1 Common functions.22
5.2.2 BMC service.23
5.2.3 CMC service.23
5.2.4 MBC services.23
5.3 Logical channels.24
5.3.1 MBC connection endpoints (MC-SAP logical channels) .24
5.3.1.1 The higher layer C-plane channels, C .24
5.3.1.2 The higher layer U-Plane channels, I .24
5.3.1.3 The higher layer U-Plane control channel, G .25
F
5.3.2 CMC endpoints (MB-SAP logical channels).25
5.3.2.1 The connectionless C-Plane channels, CL .25
5.3.2.2 The connectionless U-Plane channels, SI and SI .25
N P
5.3.3 BMC endpoint (MA-SAP logical channel).25
5.3.3.1 The slow broadcast channel, B .25
S
5.3.4 Internal MAC control channels.26
5.3.4.1 The system information channel, Q .26
5.3.4.2 Identities channel, N.26
5.3.4.3 The MAC control channel, M .26
5.3.4.4 MAC paging channel, P .26
5.4 SAP definitions.27
5.4.1 MA SAP.27
5.4.2 MB SAP.27
5.4.3 MC SAP.27
5.4.4 ME SAP.28
5.4.5 Order of transmission.28
5.5 Bearers.28
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4 ETSI EN 300 175-3 V1.9.1 (2005-09)
5.5.1 Bearer types.28
5.5.2 Bearer operation.29
5.6 Connection oriented services.29
5.6.1 Connection types.29
5.6.1.1 Basic connections.30
5.6.1.2 Advanced connections.30
5.6.1.3 Connection identifiers.30
5.6.1.4 Complementary connections.30
5.6.2 Symmetric and asymmetric connections.31
5.6.2.1 Symmetric connections.31
5.6.2.2 Asymmetric connections.34
5.7 Broadcast and connectionless services .39
5.7.1 The broadcast services .40
5.7.1.1 The continuous broadcast service .40
5.7.1.2 The non-continuous broadcast service .40
5.7.2 The connectionless services.41
5.7.2.1 Connectionless downlink services .41
5.7.2.2 Connectionless uplink services.41
6 Multiplexing.42
6.1 CCF multiplexing functions .42
6.2 CSF multiplexing functions.42
6.2.1 Bit Mappings (MAP) .47
6.2.1.1 D-field mapping (D-MAP).47
6.2.1.1.1 D-field mapping for the double slot structure (physical packet P80) .48
6.2.1.1.2 D-field mapping for the full slot structure (physical packet P32).48
6.2.1.1.3 D-field mapping for the short slot structure (physical packet P00) .49
6.2.1.1.4 D-field mapping for the half slot structure (physical packet P08j).49
6.2.1.2 A-field Mapping (A-MAP) .50
6.2.1.3 B-field Mapping (B-MAP).51
6.2.1.3.1 Unprotected format.51
6.2.1.3.2 Encoded protected format.52
6.2.1.3.3 Multisubfield protected format.52
6.2.1.3.4 Singlesubfield protected format.54
6.2.2 Time multiplexers.54
6.2.2.1 Tail MUltipleXer (T-MUX).55
6.2.2.1.1 T-MUX algorithm for RFP transmissions .55
6.2.2.1.2 T-MUX algorithm for PT transmissions.56
6.2.2.2 B-field control multiplexer (E/U-MUX) .57
6.2.2.3 B-field mode multiplexer (C-MUX) .58
6.2.2.3.1 Double slot full slot, D16 and D24 half slot modes.58
6.2.2.3.2 Half slot modes for 2-level modulation .70
6.2.3 Encryption.70
6.2.4 Scrambling.71
6.2.5 Error control.72
6.2.5.1 R-CRC overview.73
6.2.5.2 R-CRC generation and checking.73
6.2.5.3 X-CRC overview.74
6.2.5.4 X-CRC generation and checking.74
6.2.5.5 B-CRC generation and checking.76
6.2.6 Broadcast controller.76
7 Medium access layer messages .77
7.1 Header field.77
7.1.1 Overview/formatting.77
7.1.2 Tail identification, TA, bits a to a .77
0 2
7.1.3 The "Q1/BCK" bit, bit a .78
7.1.4 B-field identification, BA, bits a to a .78
4 6
7.1.5 The "Q2" bit, bit a .79
7.2 Messages in the tail field .79
7.2.1 Overview.79
7.2.2 Identities information (N ).79
T
ETSI
5 ETSI EN 300 175-3 V1.9.1 (2005-09)
7.2.3 System information and multiframe marker (Q ) .80
T
7.2.3.1 General.80
7.2.3.2 Static system information.81
7.2.3.2.1 General, Q = 0, 1 (hex) .81
H
7.2.3.2.2 Q and Normal-Reverse (NR) .81
H
7.2.3.2.3 Slot Number (SN).81
7.2.3.2.4 Start Position (SP) .82
7.2.3.2.5 ESCape bit (ESC).82
7.2.3.2.6 Number of transceivers.82
7.2.3.2.7 Extended RF carrier information available (Mc).82
7.2.3.2.8 RF carriers available (RF-cars).83
7.2.3.2.9 Spare bits (SPR) .83
7.2.3.2.10 Carrier number.83
7.2.3.2.11 Spare bits (SPR) .83
7.2.3.2.12 Primary receiver Scan Carrier Number (PSCN).84
7.2.3.3 Extended RF carrier information part 1 .84
7.2.3.3.1 General, Q = 2 (hex) .84
H
7.2.3.3.2 Further RF carrier extensions .85
7.2.3.3.3 Number of RF carriers.85
7.2.3.4 Fixed part capabilities .85
7.2.3.4.1 General, Q = 3 (hex) .85
H
7.2.3.4.2 Standard capabilities.85
7.2.3.5 Extended fixed part capabilities .86
7.2.3.5.1 General, Q = 4 (hex) .86
H
7.2.3.5.2 Extended Physical and MAC layer capabilities.87
7.2.3.5.3 Extended higher layer capabilities.88
7.2.3.6 Secondary access rights identities .88
7.2.3.6.1 General, Q = 5 (hex) .88
H
7.2.3.6.2 SARI message.88
7.2.3.7 Multiframe number.88
7.2.3.7.1 General, Q = 6 (hex) .88
H
7.2.3.7.2 Multiframe number.88
7.2.3.8 Escape.89
7.2.3.8.1 General, Q = 7 (hex) .89
H
7.2.3.8.2 Escape information.89
7.2.3.9 Extended RF carrier information part 2 .89
7.2.3.9.1 General, Q = 9 (hex) .89
H
7.2.3.10 Transmit information.89
7.2.4 Paging Tail (P ) .90
T
7.2.4.1 General format.90
7.2.4.1.1 P format for full and long page messages .90
T
7.2.4.1.2 P format for short page messages .90
T
7.2.4.1.3 P format for zero length page messages.91
T
7.2.4.1.4 P format for MAC_resume page message .91
T
7.2.4.2 P header format.91
T
7.2.4.2.1 General format.91
7.2.4.2.2 Bit a is the extend flag.91
7.2.4.2.3 B SDU length indication .91
S
7.2.4.3 MAC layer information for PT.92
7.2.4.3.1 Information type.92
7.2.4.3.2 Fill bits.92
7.2.4.3.3 Blind full slot information .92
7.2.4.3.4 Bearer description.93
7.2.4.3.5 Escape.93
7.2.4.3.6 Dummy or connectionless downlink bearer marker .93
7.2.4.3.7 Bearer handover/replacement information.94
7.2.4.3.8 RFP status and modulation types.94
7.2.4.3.9 Active carriers.96
7.2.4.3.10 RFP power level .96
7.2.4.3.11 Blind double slot/RFP-FP interface resource information.97
7.2.4.3.12 Extended modulation types.97
7.2.5 MAC control (M ) .98
T
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6 ETSI EN 300 175-3 V1.9.1 (2005-09)
7.2.5.1 General format and contents .98
7.2.5.2 Basic connection control .98
7.2.5.2.1 General.98
7.2.5.2.2 Format for most messages .98
7.2.5.2.3 WAIT.99
7.2.5.2.4 ATTRIBUTES_T_{Req;Cfm}.99
7.2.5.3 Advanced connection control.100
7.2.5.3.1 General.100
7.2.5.3.2 ACCESS_REQUEST.100
7.2.5.3.3 BEARER_HANDOVER_REQUEST.100
7.2.5.3.4 CONNECTION_HANDOVER_REQUEST.100
7.2.5.3.5 UNCONFIRMED_ACCESS_REQUEST.101
7.2.5.3.6 BEARER_CONFIRM.101
7.2.5.3.7 WAIT.101
7.2.5.3.8 ATTRIBUTES_T_{Req;Cfm}.101
7.2.5.3.9 BANDWIDTH_T_{Req;Cfm}.103
7.2.5.3.10 Channel_list.104
7.2.5.3.11 Unconfirmed_dummy.104
7.2.5.3.12 Unconfirmed_handover.104
7.2.5.3.13 RELEASE.105
7.2.5.4 MAC layer test messages .105
7.2.5.4.1 Basic format.105
7.2.5.4.2 FORCE_TRANSMIT.106
7.2.5.4.3 LOOPBACK_DATA.106
7.2.5.4.4 DEFEAT_ANTENNA_DIVERSITY.107
7.2.5.4.5 ESCAPE.107
7.2.5.4.6 NETWORK_TEST.107
7.2.5.4.7 CLEAR_TEST_MODES.108
7.2.5.4.8 CHANGE_MODULATION_SCHEME.108
7.2.5.5 Quality control.109
7.2.5.5.1 Prolonged preamble diversity.110
7.2.5.6 Broadcast and connectionless services.110
7.2.5.7 Encryption control.111
7.2.5.8 B-field setup, first PT transmission.112
7.2.5.9 Escape.112
7.2.5.10 TARI message.112
7.2.5.11 REP connection control.112
7.2.5.11.1 General.112
7.2.5.11.2 Format for most messages .112
7.2.5.11.3 REP CHANNEL MAP REQUEST .113
7.2.5.11.4 REP CHANNEL MAP CONFIRM.113
7.3 Messages in the B-field .113
7.3.1 Overview.113
7.3.2 Advanced connection control .114
7.3.2.1 General format.114
7.3.2.2 BEARER_REQUEST.115
7.3.2.3 BEARER_CONFIRM.115
7.3.2.4 WAIT.116
7.3.2.5 ATTRIBUTES_B_{Req;Cfm}.116
7.3.2.6 BANDWIDTH_B_{Req;Cfm}.117
7.3.2.7 CHANNEL_LIST.118
7.3.2.8 UNCONFIRMED_DUMMY.118
7.3.2.9 UNCONFIRMED_HANDOVER.118
7.3.2.10 RELEASE.118
7.3.3 Null.119
7.3.4 Quality control.120
7.3.4.1 General format.120
7.3.4.2 Bearer and connection control.120
7.3.4.3 RESET.122
7.3.4.4 Bearer quality in an asymmetric connection .122
7.3.5 Extended system information .123
7.3.5.1 General format.123
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7 ETSI EN 300 175-3 V1.9.1 (2005-09)
7.3.5.2 TARI messages.123
7.3.6 G channel data packet.123
F
7.3.7 Escape.124
8 Medium access layer primitives.124
8.1 Connection oriented service primitives .125
8.1.1 Connection setup: MAC_CON {req;ind;cfm}.125
8.1.2 Connection modification: MAC_MOD {req;ind;cfm}.126
8.1.3 CO data transmit ready: MAC_CO_DTR {ind}.127
8.1.4 CO data transfer: MAC_CO_DATA {req;ind} .128
8.1.5 Restart DLC: MAC_RES_DLC {ind}.128
8.1.6 Connection release: MAC_DIS {req;ind} .128
8.1.7 MAC bandwidth: MAC_BW {ind;res} .129
8.1.8 Encryption.129
8.1.8.1 Load encryption key: MAC_ENC_KEY {req}.129
8.1.8.2 Enable/disable encryption: MAC_ENC_EKS {req;ind;cfm} .129
8.1.9 C-plane switching procedure .130
8.1.9.1 C-plane switching procedure: MAC_C _C {req, cfm, ind, res}.130
S F
8.1.9.2 C-plane switching procedure: MAC_C C _END {ind} .130
S F
8.2 Connectionless and broadcast service primitives .131
8.2.1 Paging: MAC_PAGE {req;ind}.131
8.2.2 Downlink connectionless: MAC_DOWN_CON {req;ind} .131
8.2.3 Uplink connectionless: MAC_UP_CON {req;ind;cfm}.132
8.3 Management primitives.132
8.3.1 Connection control.132
8.3.1.1 Connection setup: MAC_ME_CON {ind}.132
8.3.1.2 Connection setup allowed: MAC_ME_CON_ALL {req} .132
8.3.1.3 Bearer release: MAC_ME_REL {req} .132
8.3.1.4 MBC release report: MAC_ME_REL_REP {ind} .133
8.3.2 System information and identities .133
8.3.2.1 FP information preloading: MAC_ME_RFP_PRELOAD {req} .133
8.3.2.2 PT information preloading: MAC_ME_PT_PRELOAD {req} .133
8.3.2.3 System information output: MAC_ME_INFO {ind;res} .133
8.3.2.4 Extended system info: MAC_ME_EXT.{req;ind;res;cfm} .133
8.3.3 Channel map: MAC_ME_CHANMAP {ind;res}.133
8.3.4 Status reports: MAC_ME_STATUS {req;ind;res;cfm} .134
8.3.5 Error reports: MAC_ME_ERROR {ind;res}.
...