SIST ETS 300 175-3 E1:2003

• Abstract:

  ...

• Status: Published
• Publication Date: 30-Nov-2003
• 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-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Mandate: T-176
• Ref Project: ETSI ETS 300 175-3 ed.1 (1992-10) - Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 3: Medium Access Control (MAC) layer

Overview

SIST ETS 300 175-3 E1:2003 is a Slovenian standard that aligns with the European ETS 300 175-3:1992, issued by the European Telecommunications Standards Institute (ETSI). This document specifies the Common Interface (CI) for Digital Enhanced Cordless Telecommunications (DECT) systems, focusing on the medium access control (MAC) layer. The standard provides requirements and guidelines for ensuring reliable radio communication between DECT devices, such as portable handsets and fixed base stations, supporting seamless and interoperable cordless telephony and data transmission. Adherence to this specification helps manufacturers and operators design compliant, compatible, and secure radio equipment and systems.

Key Topics

• Medium Access Control (MAC) Layer
  The standard details the MAC layer architecture, including reference models, state definitions, and the roles of Cluster Control Function (CCF) and Cell Site Functions (CSF).

• Frame and Multiframe Structures
  Describes the organization of data into frames and multiframes, crucial for synchronizing communications and managing different types of services (voice, data, control).

• Logical Channels
  Defines multiple logical channels (e.g., broadcast, connection-oriented, and connectionless services) for flexible and scalable DECT operation.

• Services and Bearers
  Outlines connection-oriented and connectionless service procedures, bearer types and operations, and mechanisms for symmetric and asymmetric communication.

• Multiplexing and Error Control
  Coverage includes multiplexing functions and methods for error detection and correction to ensure data integrity.

• Encryption and Security
  Specifies encryption and scrambling options for protecting user data and signaling information over DECT radio interfaces.

• Test and Management Procedures
  Details test message procedures and management operations for both portable and fixed parts, supporting device validation and maintenance.

Applications

DECT Common Interface, as standardized in SIST ETS 300 175-3 E1:2003, is broadly applied in:

• Cordless Telephony
  Ensuring interoperability and robust communication between cordless handsets and base stations in residential, commercial, and enterprise environments.

• Wireless Data Communications
  Supporting not only voice but also secure wireless data transmissions in DECT-enabled devices, including point-of-sale terminals and wireless sensors.

• Telecommunications Infrastructure
  Assuring smooth integration of DECT systems into wider telecommunication networks, enabling service providers to deliver consistent, high-quality cordless services.

• Device Certification and Interoperability
  Providing a foundation for compliance testing and certification of DECT devices to guarantee compatibility across manufacturers and market regions.

Related Standards

The Common Interface standard for DECT is part of a broader ecosystem of telecommunications standards, including:

• ETS 300 175 Series: Complete series governing aspects of DECT, such as physical layer, call control, and supplementary services.
• IEC 60873-1: Related to general telecommunication interfaces.
• ISO/IEC 13818: Addresses data communication protocols relevant to integration in multimedia environments.
• ETSI EN 300 444: Specifies additional requirements for DECT radio equipment.
• IEEE 802.15: Related to wireless personal area networks, offering insights into alternative short-range radio technologies.

For manufacturers, service providers, and regulatory agencies, compliance with SIST ETS 300 175-3 E1:2003 is essential for building reliable, interoperable, and market-ready wireless telecommunications solutions based on DECT technology.

Keywords: DECT standard, cordless telecommunications, medium access control, common interface, radio equipment, wireless communication, ETSI, radio systems, interoperability, telecommunications standards.

SLOVENSKI STANDARD
01-december-2003
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WHOHNRPXQLNDFLMH'(&7±6NXSQLYPHVQLN
Radio Equipment and Systems (RES); Digital European Cordless Telecommunications
Common interface
Ta slovenski standard je istoveten z: ETS 300 175-3 Edition 1
ICS:
33.070.30 'LJLWDOQHL]EROMãDQH Digital Enhanced Cordless
EUH]YUYLþQHWHOHNRPXQLNDFLMH Telecommunications (DECT)
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN ETS 300 175-3
TELECOMMUNICATION October 1992
STANDARD
Source: ETSI TC-RES Reference: DE/RES-3001-3
ICS: 33.060, 33.060.20
DECT
Key words:
Radio Equipment and Systems (RES);
Digital European Cordless Telecommunications
Common interface
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
F-06921 Sophia Antipolis CEDEX - FRANCE
Postal address:
650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Office address:
c=fr, a=atlas, p=etsi, s=secretariat - [e-mail]
X.400: Internet:
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 1992. All rights reserved.
New presentation - see History box

Page 2
ETS 300 175-3: October 1992
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 300 175-3: October 1992
Contents
Foreword. 13
1 Scope . 15
2 Normative references . 15
3 Definitions and abbreviations. 17
3.1 Definitions. 17
3.2 Abbreviations. 20
4 Description of the medium access layer . 22
4.1 MAC layer reference model . 22
4.1.1 General . 22
4.1.2 Cluster Control Function (CCF). 23
4.1.3 Cell Site Functions (CSF). 23
4.1.4 Relationship to physical layer elements . 23
4.2 Frame and multiframe structures . 24
4.2.1 General . 24
4.2.2 Frame structure . 24
4.2.3 Multiframe structure. 25
4.3 State definitions . 26
4.3.1 PP states . 26
4.3.2 RFP states . 27
5 Overview of medium access layer services . 28
5.1 General. 28
5.1.1 Broadcast message control. 28
5.1.2 Connectionless message control. 28
5.1.3 Multi-bearer control . 28
5.2 Service descriptions . 28
5.2.1 Common functions. 28
5.2.2 BMC service . 29
5.2.3 CMC service. 29
5.2.4 MBC services . 29
5.3 Logical channels. 30
5.3.1 MBC connection endpoints (MC-SAP logical channels). 30
5.3.1.1 The higher layer C-plane channels, C . 30
5.3.1.2 The higher layer U-Plane channels, I . 30
5.3.1.3 The higher layer U-Plane control channel, G . 31
F
5.3.2 CMC endpoints (MB-SAP logical channels) . 31
5.3.2.1 The connectionless C-Plane channels, C . 31
L
5.3.2.2 The connectionless U-Plane channel, SI . 31
N
5.3.3 BMC endpoint (MA-SAP logical channel). 31
5.3.3.1 The slow broadcast channel, B . 31
S
5.3.4 Internal MAC control channels. 31
5.3.4.1 The system information channel, Q . 31
5.3.4.2 Identities channel, N. 32
5.3.4.3 The MAC control channel, M. 32
5.3.4.4 MAC paging channel, P. 32
5.4 SAP definitions. 32
5.4.1 MA SAP . 33
5.4.2 MB SAP . 33
5.4.3 MC SAP . 33

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ETS 300 175-3: October 1992
5.4.4 ME SAP . 34
5.4.5 Order of transmission . 34
5.5 Bearers. 34
5.5.1 Bearer types.34
5.5.2 Bearer operation . 35
5.6 Connection oriented services.35
5.6.1 Connection types.35
5.6.1.1 Basic connections.35
5.6.1.2 Advanced connections.36
5.6.1.3 Connection identifiers .36
5.6.2 Symmetric and asymmetric connections.36
5.6.2.1 Symmetric connections.37
5.6.2.2 Asymmetric connections.38
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.41
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 .43
6.1 CCF multiplexing functions.43
6.2 CSF multiplexing functions.43
6.2.1 Bit MAPpings (MAP).47
6.2.1.1 D-field MAPping (D-MAP).48
6.2.1.2 A-field MAPping (A-MAP).49
6.2.1.3 B-field MAPping (B-MAP).49
6.2.2 Time multiplexers.51
6.2.2.1 Tail MUltipleXer (T-MUX).52
6.2.2.1.1 T-MUX algorithm for RFP
transmissions .52
6.2.2.1.2 T-MUX algorithm for PT transmissions . 54
6.2.2.2 B-field control multiplexer (E/U-MUX).54
6.2.2.3 B-field mode multiplexer (C-MUX) .55
6.2.2.3.1 Double slot and full slot modes .55
6.2.2.3.2 Half slot modes .58
6.2.3 Encryption.58
6.2.4 Scrambling.59
6.2.5 Error control. 60
6.2.5.1 R-CRC overview.60
6.2.5.2 R-CRC generation and checking .61
6.2.5.3 X-CRC overview .61
6.2.5.4 X-CRC generation and checking.61
6.2.6 Broadcast controller . 62
7 Medium access layer messages.63
7.1 Header field.63
7.1.1 Overview/formatting.63
7.1.2 Tail identification, TA, bits a to a .64
0 2
7.1.3 The "Q1 / BCK" bit, bit a .64
7.1.4 B-field identification, BA, bits a to a .65
4 6
7.1.5 The "Q2" bit, bit a .65
7.2 Messages in the tail field.65
7.2.1 Overview .65
7.2.2 Identities information (N ) .66
T
7.2.3 System information and multiframe marker (Q ) .66
T
7.2.3.1 General.66
7.2.3.2 Static system information .67

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ETS 300 175-3: October 1992
7.2.3.2.1 General, Q = 0, 1 (hex) . 67
H
7.2.3.2.2 Q and Normal-Reverse (NR). 67
H
7.2.3.2.3 Slot Number (SN) . 68
7.2.3.2.4 Start Position (SP) . 68
7.2.3.2.5 ESCape bit (ESC). 68
7.2.3.2.6 Number of transceivers. 69
7.2.3.2.7 Extended RF carrier information
available. 69
7.2.3.2.8 RF carriers available (RF-cars) . 69
7.2.3.2.9 SPaRe bits (SPR) . 69
7.2.3.2.10 Carrier number. 70
7.2.3.2.11 SPaRe bits (SPR) . 70
7.2.3.2.12 Primary receiver Scan Carrier Number
(PSCN). 70
7.2.3.3 Extended RF carrier information. 71
7.2.3.3.1 General, Q = 2 (hex). 71
H
7.2.3.3.2 Extended RF carriers. 71
7.2.3.4 Fixed part capabilities . 71
7.2.3.4.1 General, Q = 3 (hex). 71
H
7.2.3.4.2 Standard capabilities . 71
7.2.3.5 Extended fixed part capabilities. 72
7.2.3.5.1 General, Q = 4 (hex). 72
H
7.2.3.5.2 Extended capabilities. 73
7.2.3.6 Secondary access rights identities . 73
7.2.3.6.1 General, Q = 5 (hex). 73
H
7.2.3.6.2 SARI message. 73
7.2.3.7 Multiframe number. 73
7.2.3.7.1 General, Q = 6 (hex). 73
H
7.2.3.7.2 Multiframe number. 73
7.2.3.8 Escape. 74
7.2.3.8.1 General, Q = 7 (hex). 74
H
7.2.3.8.2 Escape information. 74
7.2.4 Paging Tail (P ) . 74
T
7.2.4.1 General format. 74
7.2.4.1.1 P format for full and long page
T
messages. 74
7.2.4.1.2 P format for short page messages . 74
T
7.2.4.1.3 P format for zero length page
T
messages. 74
7.2.4.2 P header format . 75
T
7.2.4.2.1 General format. 75
7.2.4.2.2 Bit a is the extend flag . 75
7.2.4.2.3 B SDU length indication. 75
S
7.2.4.3 MAC layer information for P . 75
T
7.2.4.3.1 Information type . 75
7.2.4.3.2 Fill bits. 76
7.2.4.3.3 Blind full slot information. 76
7.2.4.3.4 Bearer description. 76
7.2.4.3.5 RFP identity. 77
7.2.4.3.6 Escape. 77
7.2.4.3.7 Dummy or connectionless downlink
bearer marker. 77
7.2.4.3.8 Bearer handover information . 77
7.2.4.3.9 RFP status . 78
7.2.5 MAC control (M ) . 79
T
7.2.5.1 General format and contents . 79
7.2.5.2 Basic connection control. 80

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ETS 300 175-3: October 1992
7.2.5.2.1 General .80
7.2.5.2.2 Format for most messages . 80
7.2.5.2.3 WAIT. 81
7.2.5.3 Advanced connection control.81
7.2.5.3.1 General .81
7.2.5.3.2 ACCESS_REQUEST.81
7.2.5.3.3 BEARER_HANDOVER_REQUEST .82
7.2.5.3.4
..CONNECTION_HANDOVER_REQUEST 82
7.2.5.3.5
....UNCONFIRMED_ACCESS_REQUEST 82
7.2.5.3.6 BEARER_CONFIRM .82
7.2.5.3.7 WAIT.82
7.2.5.3.8 ATTRIBUTES_T.83
7.2.5.3.9 BANDWIDTH_T. 84
7.2.5.3.10 CHANNEL_LIST . 84
7.2.5.3.11 UNCONFIRMED_DUMMY .85
7.2.5.3.12 UNCONFIRMED_HANDOVER.86
7.2.5.3.13 RELEASE.86
7.2.5.4 MAC layer test messages . 87
7.2.5.4.1 Basic format . 87
7.2.5.4.2 FORCE_TRANSMIT. 87
7.2.5.4.3 LOOPBACK_DATA . 88
7.2.5.4.4 DEFEAT_ANTENNA_DIVERSITY.89
7.2.5.4.5 FORCE_BEARER_HANDOVER
(portable part only).90
7.2.5.4.6 ESCAPE.90
7.2.5.4.7 NETWORK_TEST .90
7.2.5.4.8 CLEAR_TEST_MODES.91
7.2.5.5 Quality control .91
7.2.5.6 Broadcast and connectionless services.93
7.2.5.7 Encryption control.94
7.2.5.8 B-field setup, first PT transmission. 94
7.2.5.9 Escape . 94
7.2.5.10 TARI message .94
7.3 Messages in the B-field .95
7.3.1 Overview .95
7.3.2 Slot type encoding.96
7.3.3 Advanced connection control .96
7.3.3.1 General format. 96
7.3.3.2 BEARER_REQUEST . 97
7.3.3.3 BEARER_CONFIRM. 98
7.3.3.4 WAIT. 98
7.3.3.5 ATTRIBUTES_B. 98
7.3.3.6 BANDWIDTH_B. 98
7.3.3.7 CHANNEL_LIST . 99
7.3.3.8 UNCONFIRMED_DUMMY. 99
7.3.3.9 UNCONFIRMED_HANDOVER . 99
7.3.3.10 RELEASE . 99
7.3.4 Null. 100
7.3.5 Quality control. 101
7.3.5.1 General format. 101
7.3.5.2 Bearer and connection control. 101
7.3.5.3 RESET . 103
7.3.5.4 Bearer quality in an asymmetric connection. 103
7.3.6 Extended system information. 104
7.3.6.1 General format. 104
7.3.6.2 TARI messages. 104
7.3.7 G -channel data packet. 104
F
7.3.8 Escape. 105

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ETS 300 175-3: October 1992
8 Medium access layer primitives . 106
8.1 Connection oriented service primitives. 106
8.1.1 Connection setup: MAC-CON. 107
8.1.2 Connection modification: MAC-MOD. 108
8.1.3 CO data transmit ready: MAC-CO_DTR . 109
8.1.4 CO data transfer: MAC-CO_DATA. 109
8.1.5 Restart DLC: MAC-RES_DLC. 110
8.1.6 Connection release: MAC-DIS. 110
8.1.7 MAC bandwidth: MAC-BW. 110
8.1.8 Encryption . 111
8.1.8.1 Load encryption key: MAC-ENC_KEY. 111
8.1.8.2 Enable/disable encryption: MAC-ENC_EKS . 111
8.2 Connectionless and broadcast service primitives. 111
8.2.1 Paging: MAC-PAGE . 111
8.2.2 Downlink connectionless: MAC-DOWN_CON. 112
8.2.3 Uplink connectionless: MAC-UP_CON. 112
8.3 Management primitives. 112
8.3.1 Connection control. 112
8.3.1.1 Connection setup: MAC-ME-CON. 112
8.3.1.2 Connection setup allowed: MAC-ME-CON_ALL . 113
8.3.1.3 Bearer release: MAC-ME-REL . 113
8.3.1.4 MBC release report: MAC-ME-REL_REP. 113
8.3.2 System information and identities. 113
8.3.2.1 FP information preloading: MAC-ME-RFP_PRELOAD . 113
8.3.2.2 PT information preloading: MAC-ME-PT_PRELOAD . 113
8.3.2.3 System information output: MAC-ME-INFO. 113
8.3.2.4 Extended system info: MAC-ME-EXT. 114
8.3.3 Channel map: MAC-ME-CHANMAP. 114
8.3.4 Status reports: MAC-ME-STATUS. 114
8.3.5 Error reports: MAC-ME-ERROR . 114
8.4 Flow control. 114
8.4.1 MA SAP flow control . 114
8.4.2 MB SAP flow control . 115
8.4.3 MC SAP flow control . 115
9 Broadcast and connectionless procedures. 117
9.1 Downlink broadcast and connectionless procedures. 117
9.1.1 Downlink broadcast procedure . 117
9.1.1.1 Broadcast information. 117
9.1.1.2 Channel selection for downlink broadcast services . 118
9.1.1.3 Downlink broadcast procedure description. 118
9.1.2 Downlink connectionless procedure. 119
9.1.2.1 Channel selection at the RFP. 119
9.1.2.2 Downlink connectionless procedure description. 119
9.1.3 Paging broadcast procedure . 119
9.1.3.1 RFP paging broadcasts. 119
9.1.3.2 PP paging procedures. 122
9.1.3.2.1 PP paging detection . 122
9.1.3.2.2 PP paging processing. 122
9.2 Uplink connectionless procedures . 122
9.2.1 General . 122
9.2.2 Bearer selection for the connectionless uplink. 123
9.2.3 Procedure for the connectionless uplink. 123
9.2.3.1 Predicates . 123
9.2.3.2 PT D-field construction. 123
9.2.3.3 PT transmission sequence. 124
9.2.3.4 FT procedure . 124
9.3 Non-continuous broadcast procedure. 125
9.3.1 Request for specific Q-channel information. 125
9.3.1.1 A-field procedure. 125

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ETS 300 175-3: October 1992
9.3.1.2 B-field procedure. 126
9.3.2 Request for a new dummy bearer. 126
10 Connection oriented service procedures . 127
10.1 Overview . 127
10.2 C/O connection setup . 127
10.2.1 General . 127
10.2.2 Initiation of a basic and a normal connection setup . 128
10.2.3 Initiation of a fast connection setup . 128
10.2.4 Connection setup procedure description . 128
10.2.4.1 Creation of MBCs . 128
10.2.4.2 Establishment of a single bearer duplex connection of a
known service type . 130
10.2.4.3 Establishment of multi-bearer connections and
connections needing service negotiation. 132
10.2.4.3.1 Symmetric connection. 134
10.2.4.3.2 Fully asymmetric uplink connection. 134
10.2.4.3.3 Fully asymmetric downlink connection 134
10.2.4.3.4 Connection established . 134
10.3 C/O connection modification. 135
10.4 C/O connection release . 136
10.4.1 General . 136
10.4.2 Procedure description. 137
10.5 C/O bearer setup. 137
10.5.1 Single bearer setup procedures. 137
10.5.1.1 Basic bearer setup procedure. 137
10.5.1.2 A-field advanced single bearer setup procedure . 140
10.5.1.2.1 PT initiated. 140
10.5.1.2.2 FT initiated. 144
10.5.1.3 B-field single bearer setup procedure. 144
10.5.1.3.1 PT initiated. 144
10.5.1.3.2 FT initiated. 147
10.5.1.4 Double simplex setup procedure . 147
10.5.2 Channel list procedures. 152
10.5.2.1 Scope. 152
10.5.2.2 Description of the channel list messages. 152
10.5.2.3 Usage of the channel list messages. 153
10.6 C/O bearer handover. 154
10.6.1 General . 154
10.6.2 Duplex bearer handover procedure . 154
10.6.3 Double simplex bearer handover. 155
10.7 C/O bearer release . 156
10.7.1 General . 156
10.7.2 Bearer release procedure description . 157
10.7.2.1 Unacknowledged release procedure. 157
10.7.2.2 Acknowledged release procedure . 157
10.7.2.3 Fast release procedure . 157
10.8 C/O data transfer. 158
10.8.1 Higher layer associated signalling (C). 158
10.8.1.1 C -channel data. 158
S
10.8.1.1.1 Transmission principle. 158
10.8.1.1.2 Numbering principle . 159
10.8.1.2 C -channel data . 159
F
10.8.1.2.1 Transmission principle. 159
10.8.1.2.2 Numbering principle . 160
10.8.1.3 Q1 and Q2 bit settings for I and I _error detection
N P
services . 160
10.8.1.3.1 Q2 bit settings. 160
10.8.1.3.2 Q1 bit settings. 161
10.8.2 MOD-2 protected I-channel operation (I ). 162
P
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ETS 300 175-3: October 1992
10.8.2.1 General . 162
10.8.2.2 Limiting the lifetime of packets. 162
10.8.2.3 A-field shall always be correct . 163
10.8.2.4 Use of the acknowledge bits. 163
10.8.2.4.1 Q2 and ACK bit setting for
I _error_correction services . 163
P
10.8.2.4.2 BCK bit setting. 164
10.8.2.5 Data jump procedures. 164
10.8.2.5.1 Bearer replacement. 164
10.8.2.5.2 Unilateral jump . 165
10.8.2.5.3 MAC I bearer reset. 166
P
10.8.3 Higher layer unprotected information (I ) and MAC error detection
N
services (I ) . 166
P
10.8.3.1 I _minimum_delay service . 166
N
10.8.3.2 I _normal_delay and I _error_detection services. 167
N P
11 Medium access layer management procedures . 167
11.1 Broadcasting . 167
11.1.1 RFP transmission . 167
11.1.2 PP reception. 167
11.2 Extended system information . 167
11.2.1 PP requests. 167
11.2.2 RFP response. 167
11.3 PP states and state transitions. 167
11.3.1 Actions in Idle_Lnlocked and Active_Unlocked states . 168
11.3.2 Entry into the Idle_Locked state . 168
11.3.3 Actions in the Idle_Locked state . 168
11.3.3.1 Page detection in Idle_Locked state. 169
11.3.3.2 Setup detection in Idle_Locked state. 169
11.3.4 Idle_Locked and Active_Locked state transitions. 169
11.4 Physical channel selection. 169
11.4.1 The channel selection lists. 169
11.4.2 Physical channel and RFP selection at the PP . 172
11.4.3 Physical channel selection at the RFP . 174
11.4.4 In-connection base identification (handover criteria). 176
11.5 In-connection quality control . 176
11.5.1 RFPI handshake. 176
11.5.2 Frequency control. 176
11.5.2.1 RFP measurement of frequency error . 176
11.5.2.2 PT frequency correction. 176
11.6 Maximum allowed system load at RFPs. 176
11.7 PMID and FMID definitions . 176
11.7.1 FMID definition. 176
11.7.2 PMID definition. 177
11.8 RFP idle receiver scan sequence. 177
11.9 PT fast set up receiver scan sequence . 178
12 Medium access layer test message procedure. 179
12.1 Introduction. 179
12.2 General. 179
12.2.1 Portable part testing. 180
12.2.2 Fixed part testing . 180
12.2.3 Applicability of test messages . 180
12.3 FORCE_TRANSMIT. 181
12.3.1 Portable part. 181
12.3.2 Fixed part . 182
12.4 LOOPBACK_DATA. 182
12.4.1 Portable part. 182
12.4.2 Fixed Part. 183

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ETS 300 175-3: October 1992
12.4.2.1 IUTs implementing the DECT scrambler. 183
12.4.2.2 IUTs implementing a proprietary scrambler. 183
12.5 DEFEAT_ANTENNA_DIVERSITY. 183
12.6 FORCE_BEARER_HANDOVER . 183
12.7 NETWORK_TEST. 183
12.8 ESCAPE. 183
12.9 CLEAR_TEST_MODES. 183
Annex A (normative): MAC layer timers and constants. 184
A.1 Timers and Time Windows. 184
A.2 Constants . 184
Annex C (informative): MAC relationship to other layers. 186
Annex D (informative): Synchronisation. 187
Annex E (informative): Scrambling patterns . 188
F.1 MAC layer services . 189
F.1.1 Connection oriented services. 189
F.1.2 Broadcast services. 189
F.2 MAC layer procedures. 189
F.2.1 Connection oriented service procedures. 189
F.2.1.1 General . 189
F.2.1.2 Antenna diversity in connection oriented services . 189
F.2.1.2.1 Q1 setting in direction PT to FT . 189
F.2.1.2.2 Antenna change due to FT reception of Q1. 190
F.2.1.2.3 Antenna change due to poor quality on slot received at FT190
F.2.1.3 Information for handover . 190
F.2.1.3.1 Q1 and Q2 setting in direction FT to PT. 190
F.2.1.3.2 PT reception of Q1 and Q2 . 190
F.2.2 Broadcast procedures . 190
F.3 Scrambling. 190
F.4 Required messages. 191
F.4.1 Header field. 191
F.4.2 Messages in the tail field. 191
F.4.2.1 Identities information (N tail) . 191
T
F.4.2.2 System information and multiframe marker (Q tail). 192
T
F.4.2.3 Paging (P tail) . 192
T
F.4.2.4 MAC control (M tails). 192
T
F.4.3 Messages in the B-field . 192
F.5 Monitoring of speech quality. 192
G.1 Incoming call (feature 16). 193
G.2 Alphanumeric text messaging and radiopaging service (feature 32) . 193
G.2.1 Alphanumeric service via the MAC broadcast service (case A). 193
G.2.2 Alphanumeric service via the MAC C/L downlink service (case B1). 194
G.2.3 Alphanumeric service via the MAC C/L downlink and uplink services (case B2). 194
G.3 Encryption (features 33 and 34). 195
G.3.1 Connection oriented service procedures. 195
G.3.2 System information and multiframe marker (Q tail). 195
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G.3.3 MAC control (M tails) . 195
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G.4 Selection of bearer service (feature 53) . 195
G.5 TARI request . 196
G.5.1 Non-continuous broadcast procedure. 196
G.5.2 MAC control (M tails) . 196
T
Annex H (informative): Seamless handover operation. 197
H.1 I-Channel data flow for I _miminmum_delay service. 197
N
History. 198

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