Digital Enhanced Cordless Telecommunications (DECT) - Common Interface (CI) - Part 3: Medium Access Control (MAC) layer

The present document is one of the parts of the specification of the Digital Enhanced Cordless Telecommunications
(DECT) Common Interface (CI).
The present document 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).

Digitalne izboljšane brezvrvične telekomunikacije (DECT) - Skupni vmesnik (CI) - 3. del: Plast krmiljenja dostopa do prenosnega medija (MAC)

Ta dokument je eden od delov specifikacije skupnega vmesnika (CI) za digitalne izboljšane brezvrvične telekomunikacije (DECT).
Ta dokument določa plast krmiljenja dostopa do prenosnega medija (MAC). Plast krmiljenja dostopa do prenosnega medija je 3. del standarda za skupni vmesnik za digitalne izboljšane brezvrvične telekomunikacije, plast 2a pa sklada protokolov digitalnih izboljšanih brezvrvičnih telekomunikacij.
Določa tri skupine storitev krmiljenja dostopa do prenosnega medija:
• storitev nadzora sporočil za oddajanje;
• storitev nadzora sporočil brez povezave; in
• storitev nadzora več nosilcev.
Poleg tega določa logične kanale, ki jih uporabljajo zgornje storitve, ter kako so ti kanali multipleksirani in preslikani v podatkovne enote storitve (SDU-je), ki se izmenjavajo s fizično plastjo (PHL).

General Information

Status
Published
Public Enquiry End Date
22-Mar-2022
Publication Date
05-Apr-2022
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
04-Apr-2022
Due Date
09-Jun-2022
Completion Date
06-Apr-2022

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ETSI EN 300 175-3 V2.9.1 (2022-03)
EUROPEAN STANDARD
Digital Enhanced Cordless Telecommunications (DECT);
Common Interface (CI);
Part 3: Medium Access Control (MAC) layer
---------------------- Page: 1 ----------------------
2 ETSI EN 300 175-3 V2.9.1 (2022-03)
Reference
REN/DECT-00353
Keywords
DECT, IMT-2000, MAC, mobility, radio, TDD,
TDMA
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871
Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search

The present document may be made available in electronic versions and/or in print. The content of any electronic and/or

print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any

existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI

deliverable is the one made publicly available in PDF format at www.etsi.org/deliver.

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

https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx

If you find errors in the present document, please send your comment to one of the following services:

https://portal.etsi.org/People/CommiteeSupportStaff.aspx

If you find a security vulnerability in the present document, please report it through our

Coordinated Vulnerability Disclosure Program:
https://www.etsi.org/standards/coordinated-vulnerability-disclosure
Notice of disclaimer & limitation of liability

The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of

experience to understand and interpret its content in accordance with generally accepted engineering or

other professional standard and applicable regulations.

No recommendation as to products and services or vendors is made or should be implied.

In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.

Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not

limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property

rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages

for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use

of or inability to use the software.
Copyright Notification

No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and

microfilm except as authorized by written permission of ETSI.

The content of the PDF version shall not be modified without the written authorization of ETSI.

The copyright and the foregoing restriction extend to reproduction in all media.
© ETSI 2022.
All rights reserved.
ETSI
---------------------- Page: 2 ----------------------
3 ETSI EN 300 175-3 V2.9.1 (2022-03)
Contents

Intellectual Property Rights .............................................................................................................................. 17

Foreword ........................................................................................................................................................... 17

Modal verbs terminology .................................................................................................................................. 17

1 Scope ...................................................................................................................................................... 18

2 References .............................................................................................................................................. 18

2.1 Normative references ....................................................................................................................................... 18

2.2 Informative references ...................................................................................................................................... 19

3 Definition of terms, symbols and abbreviations ..................................................................................... 20

3.1 Terms ................................................................................................................................................................ 20

3.2 Symbols ............................................................................................................................................................ 20

3.3 Abbreviations ................................................................................................................................................... 21

4 Description of the MAC layer ................................................................................................................ 23

4.1 MAC layer reference model ............................................................................................................................. 23

4.1.1 General ........................................................................................................................................................ 23

4.1.2 Cluster Control Function (CCF) ................................................................................................................. 24

4.1.3 Cell Site Functions (CSF) ........................................................................................................................... 24

4.1.4 Relationship to physical layer elements ...................................................................................................... 24

4.2 Frame and multiframe structures ...................................................................................................................... 25

4.2.1 General ........................................................................................................................................................ 25

4.2.2 Frame structure ........................................................................................................................................... 25

4.2.3 Multiframe structure ................................................................................................................................... 26

4.3 State definitions ................................................................................................................................................ 27

4.3.1 PP states ...................................................................................................................................................... 27

4.3.2 RFP states ................................................................................................................................................... 28

5 Overview of MAC layer services ........................................................................................................... 29

5.1 General ............................................................................................................................................................. 29

5.1.0 Service groupings ....................................................................................................................................... 29

5.1.1 Broadcast Message Control (BMC) ............................................................................................................ 29

5.1.2 Connectionless Message Control (CMC) ................................................................................................... 29

5.1.3 Multi-Bearer Control .................................................................................................................................. 29

5.2 Service descriptions .......................................................................................................................................... 29

5.2.1 Common functions ...................................................................................................................................... 29

5.2.2 BMC service ............................................................................................................................................... 30

5.2.3 CMC service ............................................................................................................................................... 30

5.2.4 MBC services.............................................................................................................................................. 30

5.3 Logical channels ............................................................................................................................................... 31

5.3.0 Overview .................................................................................................................................................... 31

5.3.1 MBC connection endpoints (MC-SAP logical channels) ........................................................................... 31

5.3.1.1 The higher layer C-plane channels, C ................................................................................................... 31

5.3.1.2 The higher layer U-Plane channels, I .................................................................................................... 32

5.3.1.3 The higher layer U-Plane control channels, G and G ....................................................................... 32

F FA

5.3.1.4 The higher layer U-Plane channel in E+U type slots, I ...................................................................... 32

5.3.2 CMC endpoints (MB-SAP logical channels) .............................................................................................. 33

5.3.2.1 The connectionless C-Plane channels, CL ............................................................................................ 33

5.3.2.2 The connectionless U-Plane channels, SI and SI ............................................................................... 33

N P

5.3.2.3 The connectionless U-Plane channel in E+U type slots, SI ................................................................ 33

5.3.3 BMC endpoint (MA-SAP logical channel) ................................................................................................. 34

5.3.3.1 The slow broadcast channel, B ............................................................................................................ 34

5.3.3.2 The ULE broadcast channel, B ........................................................................................................... 34

5.3.4 Internal MAC control channels ................................................................................................................... 34

5.3.4.1 The system information channel, Q ...................................................................................................... 34

5.3.4.2 Identities channel, N.............................................................................................................................. 34

5.3.4.3 The MAC control channel, M ............................................................................................................... 34

ETSI
---------------------- Page: 3 ----------------------
4 ETSI EN 300 175-3 V2.9.1 (2022-03)

5.3.4.4 MAC paging channel, P ........................................................................................................................ 35

5.3.4.5 The Compound System Information Channel, Q ................................................................................ 35

5.3.4.6 The Split Identities Channel, N ............................................................................................................ 35

5.3.4.7 The ULE MAC Control Channel, M ................................................................................................... 35

5.3.4.8 The ULE Paging Channel, PU ............................................................................................................... 35

5.4 SAP definitions ................................................................................................................................................ 36

5.4.0 General ........................................................................................................................................................ 36

5.4.1 MA SAP ..................................................................................................................................................... 36

5.4.2 MB SAP ...................................................................................................................................................... 36

5.4.3 MC SAP ...................................................................................................................................................... 36

5.4.4 ME SAP ...................................................................................................................................................... 37

5.4.5 Order of transmission.................................................................................................................................. 37

5.5 Bearers .............................................................................................................................................................. 37

5.5.0 General ........................................................................................................................................................ 37

5.5.1 Bearer types ................................................................................................................................................ 38

5.5.2 Bearer operation .......................................................................................................................................... 38

5.6 Connection oriented services ............................................................................................................................ 38

5.6.0 General ........................................................................................................................................................ 38

5.6.1 Connection types ........................................................................................................................................ 39

5.6.1.0 General .................................................................................................................................................. 39

5.6.1.1 Basic connections .................................................................................................................................. 39

5.6.1.2 Advanced connections .......................................................................................................................... 39

5.6.1.2.0 General ............................................................................................................................................ 39

5.6.1.2.1 Rules for ECN selection in advanced connections .......................................................................... 40

5.6.1.2.2 Expedited operations in advanced connections ............................................................................... 40

5.6.1.3 Connection identifiers ........................................................................................................................... 40

5.6.1.4 Complementary connections ................................................................................................................. 40

5.6.2 Symmetric and asymmetric connections ..................................................................................................... 41

5.6.2.0 General .................................................................................................................................................. 41

5.6.2.1 Symmetric connections ......................................................................................................................... 41

5.6.2.2 Asymmetric connections ....................................................................................................................... 47

5.7 Broadcast and connectionless services ............................................................................................................. 57

5.7.0 General ........................................................................................................................................................ 57

5.7.1 The broadcast services ................................................................................................................................ 57

5.7.1.0 General .................................................................................................................................................. 57

5.7.1.1 The continuous broadcast service ......................................................................................................... 57

5.7.1.2 The non-continuous broadcast service .................................................................................................. 58

5.7.2 The connectionless services ........................................................................................................................ 58

5.7.2.0 General .................................................................................................................................................. 58

5.7.2.1 Connectionless downlink services ........................................................................................................ 58

5.7.2.1.0 General ............................................................................................................................................ 58

5.7.2.1.1 Coding of TA and BA bits in connectionless downlink services .................................................... 59

5.7.2.2 Connectionless uplink services ............................................................................................................. 59

5.8 ULE Broadcast services ................................................................................................................................... 60

5.8.0 General ........................................................................................................................................................ 60

5.8.1 The continuous ULE broadcast service ...................................................................................................... 60

6 Multiplexing ........................................................................................................................................... 60

6.0 General ............................................................................................................................................................. 60

6.1 CCF multiplexing functions ............................................................................................................................. 60

6.2 CSF multiplexing functions .............................................................................................................................. 61

6.2.0 General ........................................................................................................................................................ 61

6.2.1 Bit Mappings (MAP) .................................................................................................................................. 66

6.2.1.0 General .................................................................................................................................................. 66

6.2.1.1 D-field mapping (D-MAP) .................................................................................................................... 66

6.2.1.1.0 General ............................................................................................................................................ 66

6.2.1.1.1 D-field mapping for the double slot structure (physical packet P80) .............................................. 67

6.2.1.1.2 D-field mapping for the full slot structure (physical packet P32) .................................................... 67

6.2.1.1.3 D-field mapping for the short slot structure (physical packet P00) ................................................. 68

6.2.1.1.4 D-field mapping for the variable slot structure (physical packet P00j) ........................................... 69

6.2.1.2 A-field Mapping (A-MAP) ................................................................................................................... 70

6.2.1.3 B-field Mapping (B-MAP) .................................................................................................................... 71

ETSI
---------------------- Page: 4 ----------------------
5 ETSI EN 300 175-3 V2.9.1 (2022-03)

6.2.1.3.0 General ............................................................................................................................................ 71

6.2.1.3.1 Unprotected format .......................................................................................................................... 71

6.2.1.3.2 Encoded protected format ................................................................................................................ 73

6.2.1.3.3 Multisubfield protected format ........................................................................................................ 73

6.2.1.3.4 Singlesubfield protected format switches ........................................................................................ 76

6.2.1.3.5 Constant-size subfield protected format .......................................................................................... 77

6.2.2 Time multiplexers ....................................................................................................................................... 80

6.2.2.0 General .................................................................................................................................................. 80

6.2.2.1 Tail MUltipleXer (T-MUX) .................................................................................................................. 80

6.2.2.1.0 General ............................................................................................................................................ 80

6.2.2.1.1 T-MUX algorithm for RFP transmissions ....................................................................................... 81

6.2.2.1.2 T-MUX algorithm for PT transmissions .......................................................................................... 82

6.2.2.2 B-field control multiplexer (E/U-MUX) ............................................................................................... 83

6.2.2.3 B-field mode multiplexer E-type and E+U-type modes ........................................................................ 85

6.2.2.3.1 E-type and E+U-type modes for slots with more than one subfield ................................................ 85

6.2.2.3.2 Half slot (j=80) modes for 2-level modulation ................................................................................ 99

6.2.2.4 Priority scheme in E or E+U mode ..................................................................................................... 100

6.2.3 MAC Encryption ...................................................................................................................................... 101

6.2.4 Scrambling ................................................................................................................................................ 101

6.2.5 Error control.............................................................................................................................................. 103

6.2.5.0 General ................................................................................................................................................ 103

6.2.5.1 R-CRC overview ................................................................................................................................. 103

6.2.5.2 R-CRC generation and checking ......................................................................................................... 104

6.2.5.3 X-CRC overview ................................................................................................................................. 104

6.2.5.4 X-CRC generation and checking ......................................................................................................... 105

6.2.5.5 B-CRC generation and checking ......................................................................................................... 107

6.2.6 Broadcast controller .................................................................................................................................. 107

7 Medium access layer messages ............................................................................................................ 107

7.0 General ........................................................................................................................................................... 107

7.1 Header field .................................................................................................................................................... 108

7.1.1 Overview/formatting ................................................................................................................................. 108

7.1.2 Tail identification, TA, bits a to a .......................................................................................................... 108

0 2

7.1.3 The "Q1/BCK" bit, bit a .......................................................................................................................... 109

7.1.4 B-field identification, BA, bits a to a ..................................................................................................... 109

4 6

7.1.5 The "Q2" bit, bit a ................................................................................................................................... 110

7.1.6 Combined coding of the bits a to a ......................................................................................................... 110

3 7

7.2 Messages in the tail field ................................................................................................................................ 111

7.2.1 Overview .................................................................................................................................................. 111

7.2.2 Identities information (N ) ........................................................................................................................ 111

7.2.3 System information and multiframe marker (Q ) ..................................................................................... 111

7.2.3.1 General ................................................................................................................................................ 111

7.2.3.2 Static system information .................................................................................................................... 112

7.2.3.2.1 General, QH = 0, 1 (hex) ................................................................................................................ 112

7.2.3.2.2 Q and Normal-Reverse (NR) ....................................................................................................... 113

7.2.3.2.3 Slot Number (SN) .......................................................................................................................... 113

7.2.3.2.4 Start Position (SP) ......................................................................................................................... 113

7.2.3.2.5 ESCape bit (ESC) .......................................................................................................................... 114

7.2.3.2.6 Number of transceivers .................................................................................................................. 114

7.2.3.2.7 Extended RF carrier information available (Mc) ........................................................................... 114

7.2.3.2.8 RF carriers available (RF-cars) ...................................................................................................... 114

7.2.3.2.9 Spare bits (SPR) ............................................................................................................................ 115

7.2.3.2.10 Carrier number............................................................................................................................... 115

7.2.3.2.11 Extended static system information available (Ext-System-Info) and spare bit ............................ 115

7.2.3.2.12 Primary receiver Scan Carrier Number (PSCN) ............................................................................ 116

7.2.3.3 Extended RF carrier information part 1 ........................
...

SLOVENSKI STANDARD
SIST EN 300 175-3 V2.9.1:2022
01-maj-2022

Digitalne izboljšane brezvrvične telekomunikacije (DECT) - Skupni vmesnik (CI) - 3.

del: Plast krmiljenja dostopa do prenosnega medija (MAC)

Digital Enhanced Cordless Telecommunications (DECT) - Common Interface (CI) - Part

3: Medium Access Control (MAC) layer
Ta slovenski standard je istoveten z: ETSI EN 300 175-3 V2.9.1 (2022-03)
ICS:
33.070.30 Digitalne izboljšane Digital Enhanced Cordless
brezvrvične telekomunikacije Telecommunications (DECT)
(DECT)
SIST EN 300 175-3 V2.9.1:2022 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 300 175-3 V2.9.1:2022
---------------------- Page: 2 ----------------------
SIST EN 300 175-3 V2.9.1:2022
ETSI EN 300 175-3 V2.9.1 (2022-03)
EUROPEAN STANDARD
Digital Enhanced Cordless Telecommunications (DECT);
Common Interface (CI);
Part 3: Medium Access Control (MAC) layer
---------------------- Page: 3 ----------------------
SIST EN 300 175-3 V2.9.1:2022
2 ETSI EN 300 175-3 V2.9.1 (2022-03)
Reference
REN/DECT-00353
Keywords
DECT, IMT-2000, MAC, mobility, radio, TDD,
TDMA
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871
Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search

The present document may be made available in electronic versions and/or in print. The content of any electronic and/or

print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any

existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI

deliverable is the one made publicly available in PDF format at www.etsi.org/deliver.

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

https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx

If you find errors in the present document, please send your comment to one of the following services:

https://portal.etsi.org/People/CommiteeSupportStaff.aspx

If you find a security vulnerability in the present document, please report it through our

Coordinated Vulnerability Disclosure Program:
https://www.etsi.org/standards/coordinated-vulnerability-disclosure
Notice of disclaimer & limitation of liability

The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of

experience to understand and interpret its content in accordance with generally accepted engineering or

other professional standard and applicable regulations.

No recommendation as to products and services or vendors is made or should be implied.

In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.

Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not

limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property

rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages

for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use

of or inability to use the software.
Copyright Notification

No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and

microfilm except as authorized by written permission of ETSI.

The content of the PDF version shall not be modified without the written authorization of ETSI.

The copyright and the foregoing restriction extend to reproduction in all media.
© ETSI 2022.
All rights reserved.
ETSI
---------------------- Page: 4 ----------------------
SIST EN 300 175-3 V2.9.1:2022
3 ETSI EN 300 175-3 V2.9.1 (2022-03)
Contents

Intellectual Property Rights .............................................................................................................................. 17

Foreword ........................................................................................................................................................... 17

Modal verbs terminology .................................................................................................................................. 17

1 Scope ...................................................................................................................................................... 18

2 References .............................................................................................................................................. 18

2.1 Normative references ....................................................................................................................................... 18

2.2 Informative references ...................................................................................................................................... 19

3 Definition of terms, symbols and abbreviations ..................................................................................... 20

3.1 Terms ................................................................................................................................................................ 20

3.2 Symbols ............................................................................................................................................................ 20

3.3 Abbreviations ................................................................................................................................................... 21

4 Description of the MAC layer ................................................................................................................ 23

4.1 MAC layer reference model ............................................................................................................................. 23

4.1.1 General ........................................................................................................................................................ 23

4.1.2 Cluster Control Function (CCF) ................................................................................................................. 24

4.1.3 Cell Site Functions (CSF) ........................................................................................................................... 24

4.1.4 Relationship to physical layer elements ...................................................................................................... 24

4.2 Frame and multiframe structures ...................................................................................................................... 25

4.2.1 General ........................................................................................................................................................ 25

4.2.2 Frame structure ........................................................................................................................................... 25

4.2.3 Multiframe structure ................................................................................................................................... 26

4.3 State definitions ................................................................................................................................................ 27

4.3.1 PP states ...................................................................................................................................................... 27

4.3.2 RFP states ................................................................................................................................................... 28

5 Overview of MAC layer services ........................................................................................................... 29

5.1 General ............................................................................................................................................................. 29

5.1.0 Service groupings ....................................................................................................................................... 29

5.1.1 Broadcast Message Control (BMC) ............................................................................................................ 29

5.1.2 Connectionless Message Control (CMC) ................................................................................................... 29

5.1.3 Multi-Bearer Control .................................................................................................................................. 29

5.2 Service descriptions .......................................................................................................................................... 29

5.2.1 Common functions ...................................................................................................................................... 29

5.2.2 BMC service ............................................................................................................................................... 30

5.2.3 CMC service ............................................................................................................................................... 30

5.2.4 MBC services.............................................................................................................................................. 30

5.3 Logical channels ............................................................................................................................................... 31

5.3.0 Overview .................................................................................................................................................... 31

5.3.1 MBC connection endpoints (MC-SAP logical channels) ........................................................................... 31

5.3.1.1 The higher layer C-plane channels, C ................................................................................................... 31

5.3.1.2 The higher layer U-Plane channels, I .................................................................................................... 32

5.3.1.3 The higher layer U-Plane control channels, G and G ....................................................................... 32

F FA

5.3.1.4 The higher layer U-Plane channel in E+U type slots, I ...................................................................... 32

5.3.2 CMC endpoints (MB-SAP logical channels) .............................................................................................. 33

5.3.2.1 The connectionless C-Plane channels, CL ............................................................................................ 33

5.3.2.2 The connectionless U-Plane channels, SI and SI ............................................................................... 33

N P

5.3.2.3 The connectionless U-Plane channel in E+U type slots, SI ................................................................ 33

5.3.3 BMC endpoint (MA-SAP logical channel) ................................................................................................. 34

5.3.3.1 The slow broadcast channel, B ............................................................................................................ 34

5.3.3.2 The ULE broadcast channel, B ........................................................................................................... 34

5.3.4 Internal MAC control channels ................................................................................................................... 34

5.3.4.1 The system information channel, Q ...................................................................................................... 34

5.3.4.2 Identities channel, N.............................................................................................................................. 34

5.3.4.3 The MAC control channel, M ............................................................................................................... 34

ETSI
---------------------- Page: 5 ----------------------
SIST EN 300 175-3 V2.9.1:2022
4 ETSI EN 300 175-3 V2.9.1 (2022-03)

5.3.4.4 MAC paging channel, P ........................................................................................................................ 35

5.3.4.5 The Compound System Information Channel, Q ................................................................................ 35

5.3.4.6 The Split Identities Channel, N ............................................................................................................ 35

5.3.4.7 The ULE MAC Control Channel, M ................................................................................................... 35

5.3.4.8 The ULE Paging Channel, PU ............................................................................................................... 35

5.4 SAP definitions ................................................................................................................................................ 36

5.4.0 General ........................................................................................................................................................ 36

5.4.1 MA SAP ..................................................................................................................................................... 36

5.4.2 MB SAP ...................................................................................................................................................... 36

5.4.3 MC SAP ...................................................................................................................................................... 36

5.4.4 ME SAP ...................................................................................................................................................... 37

5.4.5 Order of transmission.................................................................................................................................. 37

5.5 Bearers .............................................................................................................................................................. 37

5.5.0 General ........................................................................................................................................................ 37

5.5.1 Bearer types ................................................................................................................................................ 38

5.5.2 Bearer operation .......................................................................................................................................... 38

5.6 Connection oriented services ............................................................................................................................ 38

5.6.0 General ........................................................................................................................................................ 38

5.6.1 Connection types ........................................................................................................................................ 39

5.6.1.0 General .................................................................................................................................................. 39

5.6.1.1 Basic connections .................................................................................................................................. 39

5.6.1.2 Advanced connections .......................................................................................................................... 39

5.6.1.2.0 General ............................................................................................................................................ 39

5.6.1.2.1 Rules for ECN selection in advanced connections .......................................................................... 40

5.6.1.2.2 Expedited operations in advanced connections ............................................................................... 40

5.6.1.3 Connection identifiers ........................................................................................................................... 40

5.6.1.4 Complementary connections ................................................................................................................. 40

5.6.2 Symmetric and asymmetric connections ..................................................................................................... 41

5.6.2.0 General .................................................................................................................................................. 41

5.6.2.1 Symmetric connections ......................................................................................................................... 41

5.6.2.2 Asymmetric connections ....................................................................................................................... 47

5.7 Broadcast and connectionless services ............................................................................................................. 57

5.7.0 General ........................................................................................................................................................ 57

5.7.1 The broadcast services ................................................................................................................................ 57

5.7.1.0 General .................................................................................................................................................. 57

5.7.1.1 The continuous broadcast service ......................................................................................................... 57

5.7.1.2 The non-continuous broadcast service .................................................................................................. 58

5.7.2 The connectionless services ........................................................................................................................ 58

5.7.2.0 General .................................................................................................................................................. 58

5.7.2.1 Connectionless downlink services ........................................................................................................ 58

5.7.2.1.0 General ............................................................................................................................................ 58

5.7.2.1.1 Coding of TA and BA bits in connectionless downlink services .................................................... 59

5.7.2.2 Connectionless uplink services ............................................................................................................. 59

5.8 ULE Broadcast services ................................................................................................................................... 60

5.8.0 General ........................................................................................................................................................ 60

5.8.1 The continuous ULE broadcast service ...................................................................................................... 60

6 Multiplexing ........................................................................................................................................... 60

6.0 General ............................................................................................................................................................. 60

6.1 CCF multiplexing functions ............................................................................................................................. 60

6.2 CSF multiplexing functions .............................................................................................................................. 61

6.2.0 General ........................................................................................................................................................ 61

6.2.1 Bit Mappings (MAP) .................................................................................................................................. 66

6.2.1.0 General .................................................................................................................................................. 66

6.2.1.1 D-field mapping (D-MAP) .................................................................................................................... 66

6.2.1.1.0 General ............................................................................................................................................ 66

6.2.1.1.1 D-field mapping for the double slot structure (physical packet P80) .............................................. 67

6.2.1.1.2 D-field mapping for the full slot structure (physical packet P32) .................................................... 67

6.2.1.1.3 D-field mapping for the short slot structure (physical packet P00) ................................................. 68

6.2.1.1.4 D-field mapping for the variable slot structure (physical packet P00j) ........................................... 69

6.2.1.2 A-field Mapping (A-MAP) ................................................................................................................... 70

6.2.1.3 B-field Mapping (B-MAP) .................................................................................................................... 71

ETSI
---------------------- Page: 6 ----------------------
SIST EN 300 175-3 V2.9.1:2022
5 ETSI EN 300 175-3 V2.9.1 (2022-03)

6.2.1.3.0 General ............................................................................................................................................ 71

6.2.1.3.1 Unprotected format .......................................................................................................................... 71

6.2.1.3.2 Encoded protected format ................................................................................................................ 73

6.2.1.3.3 Multisubfield protected format ........................................................................................................ 73

6.2.1.3.4 Singlesubfield protected format switches ........................................................................................ 76

6.2.1.3.5 Constant-size subfield protected format .......................................................................................... 77

6.2.2 Time multiplexers ....................................................................................................................................... 80

6.2.2.0 General .................................................................................................................................................. 80

6.2.2.1 Tail MUltipleXer (T-MUX) .................................................................................................................. 80

6.2.2.1.0 General ............................................................................................................................................ 80

6.2.2.1.1 T-MUX algorithm for RFP transmissions ....................................................................................... 81

6.2.2.1.2 T-MUX algorithm for PT transmissions .......................................................................................... 82

6.2.2.2 B-field control multiplexer (E/U-MUX) ............................................................................................... 83

6.2.2.3 B-field mode multiplexer E-type and E+U-type modes ........................................................................ 85

6.2.2.3.1 E-type and E+U-type modes for slots with more than one subfield ................................................ 85

6.2.2.3.2 Half slot (j=80) modes for 2-level modulation ................................................................................ 99

6.2.2.4 Priority scheme in E or E+U mode ..................................................................................................... 100

6.2.3 MAC Encryption ...................................................................................................................................... 101

6.2.4 Scrambling ................................................................................................................................................ 101

6.2.5 Error control.............................................................................................................................................. 103

6.2.5.0 General ................................................................................................................................................ 103

6.2.5.1 R-CRC overview ................................................................................................................................. 103

6.2.5.2 R-CRC generation and checking ......................................................................................................... 104

6.2.5.3 X-CRC overview ................................................................................................................................. 104

6.2.5.4 X-CRC generation and checking ......................................................................................................... 105

6.2.5.5 B-CRC generation and checking ......................................................................................................... 107

6.2.6 Broadcast controller .................................................................................................................................. 107

7 Medium access layer messages ............................................................................................................ 107

7.0 General ........................................................................................................................................................... 107

7.1 Header field .................................................................................................................................................... 108

7.1.1 Overview/formatting ................................................................................................................................. 108

7.1.2 Tail identification, TA, bits a to a .......................................................................................................... 108

0 2

7.1.3 The "Q1/BCK" bit, bit a .......................................................................................................................... 109

7.1.4 B-field identification, BA, bits a to a ..................................................................................................... 109

4 6

7.1.5 The "Q2" bit, bit a ................................................................................................................................... 110

7.1.6 Combined coding of the bits a to a ......................................................................................................... 110

3 7

7.2 Messages in the tail field ................................................................................................................................ 111

7.2.1 Overview .................................................................................................................................................. 111

7.2.2 Identities information (N ) ........................................................................................................................ 111

7.2.3 System information and multiframe marker (Q ) ..................................................................................... 111

7.2.3.1 General ................................................................................................................................................ 111

7.2.3.2 Static system information .................................................................................................................... 112

7.2.3.2.1 General, QH = 0, 1 (hex) ................................................................................................................ 112

7.2.3.2.2 Q and Normal-Reverse (NR) ....................................................................................................... 113

7.2.3.2.3 Slot Number (SN) .......................................................................................................................... 113

7.2.3.2.4 Start Position (SP) ......................................................................................................................... 113

7.2.3.2.5 ESCape bit (ESC) .......................................................................................................................... 114

7.2.3.2.6 Number of transceivers .....................................................................................

...

SLOVENSKI STANDARD
oSIST prEN 300 175-3 V2.8.5:2022
01-marec-2022

Digitalne izboljšane brezvrvične telekomunikacije (DECT) - Skupni vmesnik (CI) - 3.

del: Plast krmiljenja dostopa do prenosnega medija (MAC)

Digital Enhanced Cordless Telecommunications (DECT) - Common Interface (CI) - Part

3: Medium Access Control (MAC) layer
Ta slovenski standard je istoveten z: ETSI EN 300 175-3 V2.8.5 (2021-12)
ICS:
33.070.30 Digitalne izboljšane Digital Enhanced Cordless
brezvrvične telekomunikacije Telecommunications (DECT)
(DECT)
oSIST prEN 300 175-3 V2.8.5:2022 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 300 175-3 V2.8.5:2022
---------------------- Page: 2 ----------------------
oSIST prEN 300 175-3 V2.8.5:2022
Draft ETSI EN 300 175-3 V2.8.5 (2021-12)
EUROPEAN STANDARD
Digital Enhanced Cordless Telecommunications (DECT);
Common Interface (CI);
Part 3: Medium Access Control (MAC) layer
---------------------- Page: 3 ----------------------
oSIST prEN 300 175-3 V2.8.5:2022
2 Draft ETSI EN 300 175-3 V2.8.5 (2021-12)
Reference
REN/DECT-00353
Keywords
DECT, IMT-2000, MAC, mobility, radio, TDD,
TDMA
ETSI
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ETSI
---------------------- Page: 4 ----------------------
oSIST prEN 300 175-3 V2.8.5:2022
3 Draft ETSI EN 300 175-3 V2.8.5 (2021-12)
Contents

Intellectual Property Rights .............................................................................................................................. 17

Foreword ........................................................................................................................................................... 17

Modal verbs terminology .................................................................................................................................. 17

1 Scope ...................................................................................................................................................... 18

2 References .............................................................................................................................................. 18

2.1 Normative references ....................................................................................................................................... 18

2.2 Informative references ...................................................................................................................................... 19

3 Definition of terms, symbols and abbreviations ..................................................................................... 20

3.1 Terms ................................................................................................................................................................ 20

3.2 Symbols ............................................................................................................................................................ 20

3.3 Abbreviations ................................................................................................................................................... 21

4 Description of the MAC layer ................................................................................................................ 23

4.1 MAC layer reference model ............................................................................................................................. 23

4.1.1 General ........................................................................................................................................................ 23

4.1.2 Cluster Control Function (CCF) ................................................................................................................. 24

4.1.3 Cell Site Functions (CSF) ........................................................................................................................... 24

4.1.4 Relationship to physical layer elements ...................................................................................................... 24

4.2 Frame and multiframe structures ...................................................................................................................... 25

4.2.1 General ........................................................................................................................................................ 25

4.2.2 Frame structure ........................................................................................................................................... 25

4.2.3 Multiframe structure ................................................................................................................................... 26

4.3 State definitions ................................................................................................................................................ 27

4.3.1 PP states ...................................................................................................................................................... 27

4.3.2 RFP states ................................................................................................................................................... 28

5 Overview of MAC layer services ........................................................................................................... 29

5.1 General ............................................................................................................................................................. 29

5.1.0 Service groupings ....................................................................................................................................... 29

5.1.1 Broadcast Message Control (BMC) ............................................................................................................ 29

5.1.2 Connectionless Message Control (CMC) ................................................................................................... 29

5.1.3 Multi-Bearer Control .................................................................................................................................. 29

5.2 Service descriptions .......................................................................................................................................... 29

5.2.1 Common functions ...................................................................................................................................... 29

5.2.2 BMC service ............................................................................................................................................... 30

5.2.3 CMC service ............................................................................................................................................... 30

5.2.4 MBC services.............................................................................................................................................. 30

5.3 Logical channels ............................................................................................................................................... 31

5.3.0 Overview .................................................................................................................................................... 31

5.3.1 MBC connection endpoints (MC-SAP logical channels) ........................................................................... 31

5.3.1.1 The higher layer C-plane channels, C ................................................................................................... 31

5.3.1.2 The higher layer U-Plane channels, I .................................................................................................... 32

5.3.1.3 The higher layer U-Plane control channels, G and G ....................................................................... 32

F FA

5.3.1.4 The higher layer U-Plane channel in E+U type slots, I ...................................................................... 32

5.3.2 CMC endpoints (MB-SAP logical channels) .............................................................................................. 33

5.3.2.1 The connectionless C-Plane channels, CL ............................................................................................ 33

5.3.2.2 The connectionless U-Plane channels, SI and SI ............................................................................... 33

N P

5.3.2.3 The connectionless U-Plane channel in E+U type slots, SI ................................................................ 33

5.3.3 BMC endpoint (MA-SAP logical channel) ................................................................................................. 34

5.3.3.1 The slow broadcast channel, B ............................................................................................................ 34

5.3.3.2 The ULE broadcast channel, B ........................................................................................................... 34

5.3.4 Internal MAC control channels ................................................................................................................... 34

5.3.4.1 The system information channel, Q ...................................................................................................... 34

5.3.4.2 Identities channel, N.............................................................................................................................. 34

5.3.4.3 The MAC control channel, M ............................................................................................................... 34

ETSI
---------------------- Page: 5 ----------------------
oSIST prEN 300 175-3 V2.8.5:2022
4 Draft ETSI EN 300 175-3 V2.8.5 (2021-12)

5.3.4.4 MAC paging channel, P ........................................................................................................................ 35

5.3.4.5 The Compound System Information Channel, Q ................................................................................ 35

5.3.4.6 The Split Identities Channel, N ............................................................................................................ 35

5.3.4.7 The ULE MAC Control Channel, M ................................................................................................... 35

5.3.4.8 The ULE Paging Channel, PU ............................................................................................................... 35

5.4 SAP definitions ................................................................................................................................................ 36

5.4.0 General ........................................................................................................................................................ 36

5.4.1 MA SAP ..................................................................................................................................................... 36

5.4.2 MB SAP ...................................................................................................................................................... 36

5.4.3 MC SAP ...................................................................................................................................................... 36

5.4.4 ME SAP ...................................................................................................................................................... 37

5.4.5 Order of transmission.................................................................................................................................. 37

5.5 Bearers .............................................................................................................................................................. 37

5.5.0 General ........................................................................................................................................................ 37

5.5.1 Bearer types ................................................................................................................................................ 38

5.5.2 Bearer operation .......................................................................................................................................... 38

5.6 Connection oriented services ............................................................................................................................ 38

5.6.0 General ........................................................................................................................................................ 38

5.6.1 Connection types ........................................................................................................................................ 39

5.6.1.0 General .................................................................................................................................................. 39

5.6.1.1 Basic connections .................................................................................................................................. 39

5.6.1.2 Advanced connections .......................................................................................................................... 39

5.6.1.2.0 General ............................................................................................................................................ 39

5.6.1.2.1 Rules for ECN selection in advanced connections .......................................................................... 40

5.6.1.2.2 Expedited operations in advanced connections ............................................................................... 40

5.6.1.3 Connection identifiers ........................................................................................................................... 40

5.6.1.4 Complementary connections ................................................................................................................. 40

5.6.2 Symmetric and asymmetric connections ..................................................................................................... 41

5.6.2.0 General .................................................................................................................................................. 41

5.6.2.1 Symmetric connections ......................................................................................................................... 41

5.6.2.2 Asymmetric connections ....................................................................................................................... 47

5.7 Broadcast and connectionless services ............................................................................................................. 57

5.7.0 General ........................................................................................................................................................ 57

5.7.1 The broadcast services ................................................................................................................................ 57

5.7.1.0 General .................................................................................................................................................. 57

5.7.1.1 The continuous broadcast service ......................................................................................................... 57

5.7.1.2 The non-continuous broadcast service .................................................................................................. 58

5.7.2 The connectionless services ........................................................................................................................ 58

5.7.2.0 General .................................................................................................................................................. 58

5.7.2.1 Connectionless downlink services ........................................................................................................ 58

5.7.2.1.0 General ............................................................................................................................................ 58

5.7.2.1.1 Coding of TA and BA bits in connectionless downlink services .................................................... 59

5.7.2.2 Connectionless uplink services ............................................................................................................. 59

5.8 ULE Broadcast services ................................................................................................................................... 60

5.8.0 General ........................................................................................................................................................ 60

5.8.1 The continuous ULE broadcast service ...................................................................................................... 60

6 Multiplexing ........................................................................................................................................... 60

6.0 General ............................................................................................................................................................. 60

6.1 CCF multiplexing functions ............................................................................................................................. 60

6.2 CSF multiplexing functions .............................................................................................................................. 61

6.2.0 General ........................................................................................................................................................ 61

6.2.1 Bit Mappings (MAP) .................................................................................................................................. 66

6.2.1.0 General .................................................................................................................................................. 66

6.2.1.1 D-field mapping (D-MAP) .................................................................................................................... 66

6.2.1.1.0 General ............................................................................................................................................ 66

6.2.1.1.1 D-field mapping for the double slot structure (physical packet P80) .............................................. 67

6.2.1.1.2 D-field mapping for the full slot structure (physical packet P32) .................................................... 67

6.2.1.1.3 D-field mapping for the short slot structure (physical packet P00) ................................................. 68

6.2.1.1.4 D-field mapping for the variable slot structure (physical packet P00j) ........................................... 69

6.2.1.2 A-field Mapping (A-MAP) ................................................................................................................... 70

6.2.1.3 B-field Mapping (B-MAP) .................................................................................................................... 71

ETSI
---------------------- Page: 6 ----------------------
oSIST prEN 300 175-3 V2.8.5:2022
5 Draft ETSI EN 300 175-3 V2.8.5 (2021-12)

6.2.1.3.0 General ............................................................................................................................................ 71

6.2.1.3.1 Unprotected format .......................................................................................................................... 71

6.2.1.3.2 Encoded protected format ................................................................................................................ 73

6.2.1.3.3 Multisubfield protected format ........................................................................................................ 73

6.2.1.3.4 Singlesubfield protected format switches ........................................................................................ 76

6.2.1.3.5 Constant-size subfield protected format .......................................................................................... 77

6.2.2 Time multiplexers ....................................................................................................................................... 80

6.2.2.0 General .................................................................................................................................................. 80

6.2.2.1 Tail MUltipleXer (T-MUX) .................................................................................................................. 80

6.2.2.1.0 General ............................................................................................................................................ 80

6.2.2.1.1 T-MUX algorithm for RFP transmissions ....................................................................................... 81

6.2.2.1.2 T-MUX algorithm for PT transmissions .......................................................................................... 82

6.2.2.2 B-field control multiplexer (E/U-MUX) ............................................................................................... 83

6.2.2.3 B-field mode multiplexer E-type and E+U-type modes ........................................................................ 85

6.2.2.3.1 E-type and E+U-type modes for slots with more than one subfield ................................................ 85

6.2.2.3.2 Half slot (j=80) modes for 2-level modulation ................................................................................ 99

6.2.2.4 Priority scheme in E or E+U mode ..................................................................................................... 100

6.2.3 MAC Encryption ...................................................................................................................................... 101

6.2.4 Scrambling ................................................................................................................................................ 101

6.2.5 Error control.............................................................................................................................................. 103

6.2.5.0 General ................................................................................................................................................ 103

6.2.5.1 R-CRC overview ................................................................................................................................. 103

6.2.5.2 R-CRC generation and checking ......................................................................................................... 104

6.2.5.3 X-CRC overview ................................................................................................................................. 104

6.2.5.4 X-CRC generation and checking ......................................................................................................... 105

6.2.5.5 B-CRC generation and checking ......................................................................................................... 107

6.2.6 Broadcast controller .................................................................................................................................. 107

7 Medium access layer messages ............................................................................................................ 107

7.0 General ........................................................................................................................................................... 107

7.1 Header field .................................................................................................................................................... 108

7.1.1 Overview/formatting ................................................................................................................................. 108

7.1.2 Tail identification, TA, bits a to a .......................................................................................................... 108

0 2

7.1.3 The "Q1/BCK" bit, bit a .......................................................................................................................... 109

7.1.4 B-field identification, BA, bits a to a ..................................................................................................... 109

4 6

7.1.5 The "Q2" bit, bit a ................................................................................................................................... 110

7.1.6 Combined coding of the bits a to a ......................................................................................................... 110

3 7

7.2 Messages in the tail field ................................................................................................................................ 111

7.2.1 Overview .................................................................................................................................................. 111

7.2.2 Identities information (N ) ........................................................................................................................ 111

7.2.3 System information and multiframe marker (Q ) ..................................................................................... 111

7.2.3.1 General ................................................................................................................................................ 111

7.2.3.2 Static system information .................................................................................................................... 112

7.2.3.2.1 General, QH = 0, 1 (hex) ................................................................................................................ 112

7.2.3.2.2 Q and Normal-Reverse (NR) ....................................................................................................... 113

7.2.3.2.3 Slot Number (SN) .......................................................................................................................... 113

7.2.3.2.4 Start Position (SP) ......................................................................................................................... 113

7.2.3.2.5 ESCape bit (ESC) .......................................................................................................................... 114

7.2.3.2.6 Number of transceivers .................................................................................................................. 114

7.2.3.2.7 Extended RF carrier information available (Mc) .................................................................

...

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