Open Data Communication in Building Automation, Controls and Building Management - Control Network Protocol - Part 9: Wireless Communication in ISM bands

This document specifies an adaptation layer for the control network protocol (CNP), as described in EN 14908 1 to utilize wireless communication network. This document defines the services of the wireless communication provided to CNP layer for delivering data and commands towards and from sensors, actuators, etc. which are wirelessly connected as part of the EN 14908 1 network.
In addition, this document defines the requirements for the radio communication applicable for CNP layer operation.
For the radio communication different frequency bands can be utilized. Annex A defines requirement for operation in different frequency bands.

Firmenneutrale Datenkommunikation für die Gebäudeautomation und Gebäudemanagement - Steuerungs-Netzwerk-Protokoll - Teil 9: Drahtlose Kommunikation im ISM Band

Dieses Dokument legt eine Adaptionsschicht für das Gebäude-Netzwerk-Protokoll (en: Control Network Protocol, CNP) fest, wie in EN 14908 1 beschrieben, um ein drahtloses Kommunikationsnetzwerk nutzen zu können. Dieses Dokument definiert die Dienste der drahtlosen Kommunikation, die der CNP-Schicht zur Verfügung gestellt werden, um Daten und Befehle an und von Sensoren, Aktoren usw. zu liefern, die drahtlos als Teil des Netzwerks nach EN 14908 1 verbunden sind.
Darüber hinaus definiert dieses Dokument die für den Betrieb der CNP-Schicht geltenden Anforderungen an die Funkkommunikation.
Für die Funkkommunikation können verschiedene Frequenzbänder verwendet werden. Anhang A definiert die Anforderungen für den Betrieb in verschiedenen Frequenzbändern.

Réseau ouvert de communication de données pour l’automatisation, la régulation et la gestion technique du bâtiment - Protocole de contrôle du réseau - Partie 9 : Communication sans fil dans les bandes ISM

Le présent document spécifie une couche adaptation pour le protocole de contrôle du réseau (CNP), comme décrit dans l’EN 14908 1 pour utiliser le réseau de communication sans fil. Le présent document définit les services de communication sans fil fournis à la couche CNP pour fournir des données et des commandes vers et depuis des capteurs, actionneurs, etc. qui sont connectés sans fil dans le cadre du réseau selon l’EN 14908 1.
En outre, le présent document définit les exigences relatives à la radiocommunication et applicables au fonctionnement de la couche CNP.
Pour la radiocommunication, différentes bandes de fréquences peuvent être utilisées. L’Annexe A définit les exigences de fonctionnement dans différentes bandes de fréquences.

Odprta izmenjava podatkov v avtomatizaciji stavb, regulaciji in upravljanju stavb - Protokol regulacijske mreže - 9. del: Brezžična komunikacija v pasu ISM

General Information

Status
Published
Public Enquiry End Date
01-Feb-2021
Publication Date
03-Oct-2021
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
14-Sep-2021
Due Date
19-Nov-2021
Completion Date
04-Oct-2021

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SLOVENSKI STANDARD
SIST EN 14908-9:2021
01-november-2021

Odprta izmenjava podatkov v avtomatizaciji stavb, regulaciji in upravljanju stavb -

Protokol regulacijske mreže - 9. del: Brezžična komunikacija v pasu ISM

Open Data Communication in Building Automation, Controls and Building Management -

Control Network Protocol - Part 9: Wireless Communication in ISM bands
Firmenneutrale Datenkommunikation für die Gebäudeautomation und
Gebäudemanagement - Steuerungs-Netzwerk-Protokoll - Teil 9: Drahtlose
Kommunikation im ISM Band

Réseau ouvert de communication de données pour l’automatisation, la régulation et la

gestion technique du bâtiment - Protocole de contrôle du réseau - Partie 9 :
Communication sans fil dans les bandes ISM
Ta slovenski standard je istoveten z: EN 14908-9:2021
ICS:
35.240.67 Uporabniške rešitve IT v IT applications in building
gradbeništvu and construction industry
97.120 Avtomatske krmilne naprave Automatic controls for
za dom household use
SIST EN 14908-9:2021 en,fr,de

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

---------------------- Page: 1 ----------------------
SIST EN 14908-9:2021
---------------------- Page: 2 ----------------------
SIST EN 14908-9:2021
EN 14908-9
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2021
EUROPÄISCHE NORM
ICS 91.140.01; 97.120; 35.240.67
English Version
Open Data Communication in Building Automation,
Controls and Building Management - Control Network
Protocol - Part 9: Wireless Communication in ISM bands

Réseau ouvert de communication de données pour Firmenneutrale Datenkommunikation für die

l'automatisation, la régulation et la gestion technique Gebäudeautomation und Gebäudemanagement -

du bâtiment - Protocole de contrôle du réseau - Partie Steuerungs-Netzwerk-Protokoll - Teil 9: Drahtlose

9 : Communication sans fil dans les bandes ISM Kommunikation im ISM Band
This European Standard was approved by CEN on 8 July 2021.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14908-9:2021 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 14908-9:2021
EN 14908-9:2021 (E)
Contents Page

European foreword ...................................................................................................................................................... 4

Introduction .................................................................................................................................................................... 5

1 Scope .................................................................................................................................................................... 6

2 Normative references .................................................................................................................................... 6

3 Terms and definitions ................................................................................................................................... 6

4 Abbreviations ................................................................................................................................................... 7

5 Overview of ISM RF in EN 14908 based systems ................................................................................. 8

5.1 General................................................................................................................................................................ 8

5.2 ISM RF radio communication introduction ........................................................................................... 8

5.2.1 Architecture ...................................................................................................................................................... 8

5.2.2 ISM RF radio network elements ................................................................................................................ 9

5.3 ISM RF functional overview ....................................................................................................................... 10

6 Control Network protocol information flows mapping to ISM RF ............................................... 11

6.1 General.............................................................................................................................................................. 11

6.2 Address mapping principles ..................................................................................................................... 11

6.3 Broadcast messages flows ......................................................................................................................... 12

6.3.1 Messages from other segments of CNP network ................................................................................ 12

6.3.2 Messages from CNP application layers.................................................................................................. 13

6.4 Unicast message flows ................................................................................................................................. 13

6.4.1 Messages from CNP network .................................................................................................................... 13

6.4.2 Messages from RF node .............................................................................................................................. 14

6.5 Multicast ........................................................................................................................................................... 15

6.5.1 Messages from CNP network .................................................................................................................... 15

6.5.2 Messages from RF Node .............................................................................................................................. 16

7 ISM RF radio network services to CNP applications ......................................................................... 17

7.1 General.............................................................................................................................................................. 17

7.2 Attributes ......................................................................................................................................................... 17

7.3 RF node addressing ...................................................................................................................................... 17

7.4 RF-DSAP Services .......................................................................................................................................... 18

7.4.1 Overview .......................................................................................................................................................... 18

7.4.2 RF-DSAP-DATA_TX.request ....................................................................................................................... 19

7.4.3 RF-DSAP-DATA_TX.confirm ....................................................................................................................... 21

7.4.4 RF-DSAP-DATA_TX.indication .................................................................................................................. 21

7.4.5 RF-DSAP-DATA_RX.indication .................................................................................................................. 22

7.4.6 RF-DSAP-DATA_TX/RX.response ............................................................................................................ 23

7.5 RF-CSAP Services ........................................................................................................................................... 23

7.5.1 Overview .......................................................................................................................................................... 23

7.5.2 RF-CSAP-ATTRIBUTE_WRITE.request ................................................................................................... 23

7.5.3 RF-CSAP-ATTRIBUTE_WRITE.confirm .................................................................................................. 26

7.5.4 RF-CSAP-ATTRIBUTE_READ.request ..................................................................................................... 27

7.5.5 RF-CSAP-ATTRIBUTE_READ.confirm ..................................................................................................... 27

7.6 Radio link layer security ............................................................................................................................ 27

Annex A (normative) ISM RF Radio characteristics ....................................................................................... 28

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SIST EN 14908-9:2021
EN 14908-9:2021 (E)

A.1 General requirements ................................................................................................................................. 28

A.2 Supported operating frequency bands ................................................................................................. 28

Bibliography ................................................................................................................................................................. 29

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SIST EN 14908-9:2021
EN 14908-9:2021 (E)
European foreword

This document (EN 14908-9:2021) has been prepared by Technical Committee CEN/TC 247 “Building

Automation, Controls and Building Management”, the secretariat of which is held by SNV.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by March 2022, and conflicting national standards shall

be withdrawn at the latest by March 2022.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document is part of a series of European Standards for open data transmission in building

automation, control and in building management systems. The content of this document covers the data

communications used for management, automation/control and field functions. This document is based

on the American standards EIA/CEA-709.1-B Control Network Protocol Specification.

This document is part of a series of European Standards under the general title Open Data

Communication in Building Automation, Controls and Building Management — Control Network Protocol,

which comprises the following parts:
— Part 1: Protocol Stack
— Part 2: Twisted Pair Communication
— Part 3: Power Line Channel Specification
— Part 4: IP-Communication
— Part 5: Implementation
— Part 6: Application elements
— Part 7: Communication via internet protocols

— Part 8: Communication using Broadband over Power Line Networks — with internet protocols

— Part 9: Wireless Communication in ISM bands (this document)

Any feedback and questions on this document should be directed to the users’ national standards body.

A complete listing of these bodies can be found on the CEN website.

According to the CEN-CENELEC Internal Regulations, the national standards organisations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,

Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
---------------------- Page: 6 ----------------------
SIST EN 14908-9:2021
EN 14908-9:2021 (E)
Introduction

This document enables utilization of wireless communication in the general title Control Network

Protocol (CNP) in the EN 14908 series. The wireless communication can provide fast and easy system

deployment, robust, de-centralized and autonomous network operation for EN 14908 based

applications.

Wireless communication is defined to operate in ISM bands, which are licensed exempt bands available

either regionally or globally.
---------------------- Page: 7 ----------------------
SIST EN 14908-9:2021
EN 14908-9:2021 (E)
1 Scope

This document specifies an adaptation layer for the control network protocol (CNP), as described in

EN 14908-1 to utilize wireless communication network. This document defines the services of the

wireless communication provided to CNP layer for delivering data and commands towards and from

sensors, actuators, etc. which are wirelessly connected as part of the EN 14908-1 network.

In addition, this document defines the requirements for the radio communication applicable for CNP

layer operation.

For the radio communication different frequency bands can be utilized. Annex A defines requirement

for operation in different frequency bands.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

EN 14908-1:2014, Open Data Communication in Building Automation, Controls and Building

Management - Control Network Protocol - Part 1: Protocol Stack
3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 14908-1 and the following

apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
ISM RF radio layer
layer used for radio communications in ISM RF 14908-9 system

Note 1 to entry: Higher layers of the EN 14908-1 can access ISM RF radio layer based on interface defined in

Clause 7.
3.2
RF gateway

entity which has a backhaul connection for data delivery to the wireline CNP network

Note 1 to entry: The RF gateway operates as sink of ISM RF radio network, providing a root of routing, which in

multi-hop network RF nodes are directing traffic.
3.3
RF node

physical node capable of wireless communication that represents the highest degree of address

resolvability on a wireless network
---------------------- Page: 8 ----------------------
SIST EN 14908-9:2021
EN 14908-9:2021 (E)
4 Abbreviations
AES Advanced Encryption Standard
APDU Application layer Protocol Data Unit
ARQ Automatic Repeat Request
CBC-MAC Cipher Block Chaining MAC algorithm
CMAC cipher-based Message Authentication Code
CNP Control Network Protocol
CTR Counter Mode
CRC Cyclic Redundancy Check
ISM Industrial Scientific and Medical

LPDU Link Protocol Data Unit, or frame as defined according to EN 14908-1:2014, 6.5

NPDU Network Protocol Data Unit, or packet as defined according to EN 14908-1:2014, 8.5

OMAC1 One-Key CBC-MAC
PDUID Protocol Data Unit ID
QoS Quality of Service
RF Radio Frequency
RF-CSAP RF Control Service Access Point
RF-DSAP RF Data Service Access Point
---------------------- Page: 9 ----------------------
SIST EN 14908-9:2021
EN 14908-9:2021 (E)
5 Overview of ISM RF in EN 14908 based systems
5.1 General

The overall protocol architecture of the ISM RF in EN 14908 based system is depicted in Figure 1. The

higher layer protocols of EN 14908-1 can access to the ISM RF radio protocols via open interfaces as

specified in Clause 7. Annex A defines requirements for ISM RF radio protocol layers.

Figure 1 — Protocol layering
5.2 ISM RF radio communication introduction
5.2.1 Architecture

The radio communication solution for ISM RF radio communication is based on decentralized RF node

to RF node communication network architecture as depicted in Figure 2. This enables ISM RF radio

communication, to support deployments where some RF nodes are located outside of RF gateway radio

coverage. The RF-node is capable of local decision making related to data routing, used transmission

power, and used transmission time and frequency.
---------------------- Page: 10 ----------------------
SIST EN 14908-9:2021
EN 14908-9:2021 (E)
Key
Router, EN 14908-1
Node, EN 14908-1
RF Gateway
RF Node
ISM RF radio network
Figure 2 — ISM RF radio network and connection to other segments of CNP network

RF nodes are routing data towards the sink of the ISM RF radio network, which is in the RF gateway.

The RF gateway delivers the data to the back-end network. There can exist one or multiple RF gateways

operating as sink in single ISM RF network. However, transmitting data between two CNP routers via

ISM RF network is not supported. To support different application requirements ISM RF radio

communication supports different operating radio modes as defined in Annex A.
5.2.2 ISM RF radio network elements
5.2.2.1 RF gateway

The RF gateway is the data concentration point, i.e. sink, in the ISM RF radio network, which provides

the backhaul connectivity to the rest of the CNP network via a CNP router. There is one to one mapping

between single RF gateway and CNP router as depicted in Figure 3. The interface between CNP router

and RF gateway is not defined.
---------------------- Page: 11 ----------------------
SIST EN 14908-9:2021
EN 14908-9:2021 (E)
Figure 3 — Logical One-to-One relation between RF gateway and CNP router

The RF gateway shall have both backhaul and ISM RF radio connectivity. ISM RF gateway operates as a

sink, by collecting the data from underlaying ISM RF radio network and routes received data to

backhaul interface CNP router. RF gateway also transmits data received from CNP router towards the

RF nodes inside the ISM RF radio network. ISM RF radio network can support multiple RF gateways in

the same network.
5.2.2.2 RF node

All RF nodes in a single ISM radio network can be the same. An RF node is capable to decide to which

neighbouring RF node it shall send its data that is to be routed to RF gateway.
Data can be generated by RF node itself or received from neighbouring RF node.

Additionally, RF node is capable to decide to which neighbouring RF nodes it shall transmit data

transmitted from RF gateway to the RF node(s). Each RF node may dynamically change its routing to

adapt changing environment and possible communication load variations. The decision of RF node

routing may be done locally based on available information from environment and desired operational

mode.
5.3 ISM RF functional overview

The ISM RF radio network may consist of RF nodes belonging into one or different CNP subnets,

however the data routing in radio may not use subnets. Single CNP subnet shall not include nodes inside

and outside single ISM RF radio network.
The ISM RF network supports following transmission modes:
— Broadcasting;
— Unicasting;
— Multicasting.
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SIST EN 14908-9:2021
EN 14908-9:2021 (E)
6 Control Network protocol information flows mapping to ISM RF
6.1 General

The ISM RF network supports manual and/or automatic RF node and RF gateway configuration.

In manual configuration following parameters are configured to RF node and RF gateway before

operation in ISM RF radio network:
— ISM RF Network ID;
— All addressed defined in 6.1;
— Security parameters for ISM RF network.

In automatic configuration following parameters are configured to RF node and RF gateway before

operation in ISM RF radio network:
— ISM RF network ID;
— Security parameters for ISM RF network;

— Temporary ISM radio network unicast address (4 octets) which RF node and RF gateway replaces

as defined in 6.1, when obtaining subnet identifier and node number.

The 7.5 defines means to configure the RF node and RF gateway this configuration can be done by CNP

network or done by other means.
6.2 Address mapping principles
Each ISM RF Node and RF gateway shall have following addresses:
— Unique Node Id (48 bits) as defined according to EN 14908-1;

— Domain Id (0/8/24/48) bits as defined according to EN 14908-1, which is set to same value for all

ISM RF nodes and RF gateways in single ISM network;

— One subnet identifier (8 bits) and one node number (7 bits) that is unique inside the subnet as

defined according to EN 14908-1;
— One or multiple group identifier (8 bits) as defined according to EN 14908-1;
— ISM radio network unicast address (4 octets) as defined in Table 1.

The subnet identifier, node number and ISM radio network unicast address shall be set in ISM RF node

and ISM RF gateway configuration as follows:

— The second last octet of ISM radio network unicast address shall be set to same bit sequence as

subnet identifier;

— The seven (7) LSBs of the ISM radio network unicast address shall be set to same bit sequence as

node number.

If ISM RF node or ISM RF gateway belongs to one or multiple groups defined according to EN 14908-1,

the group identifier is set to ISM RF node as follows:

— The most significant octet of the ISM radio network multicast address is set to 0x8 and the last octet

of the address is set to same bit sequence as group identifier according to EN 14908-1.

---------------------- Page: 13 ----------------------
SIST EN 14908-9:2021
EN 14908-9:2021 (E)
Additionally, RF node and RF gateway has following addresses configured:
— All subnet identifiers used to configure RF nodes inside ISM RF network;
— All group identifiers used configure RF nodes only inside ISM RF network.

The RF node and RF gateway shall form subnet-list from configured subnet identifiers.

The RF node RF gateway shall form group-list from configured group identifiers.
6.3 Broadcast messages flows
6.3.1 Messages from other segments of CNP network

When ISM RF gateway receives CNP broadcast frame from backhaul link, the adaptation layer in ISM RF

gateway shall execute the following:

— utilize RF-DSAP-DATA_TX.request primitive to transmit broadcast frame ISM radio network by

using broadcasting and set primitives as follows:
—PDUID: as defined in Table 3;
— SourceEndPoint: as defined in 7.3;
— DestinationAddress: Broadcast as defined in Table 1;
— DestinationEndPoint: as defined in 7.3;
— if Prior bit is set to 0 in LPDU/MPDU of EN 14908-1, set:
— QoS: 0x00 else set:
— QoS: 0x01;
— TXoptions: as defined in Table 3;
— BufferingDelay: as defined in Table 3;
— APDULength: Length of the NPDU;
— APDU: NPDU;
— use own ISM radio network unicast address as source ID;
— procedure ends;

NOTE If there are multiple RF gateways in single ISM radio network each RF gateway operates

independently.

When ISM RF node receives broadcasted frame, the ISM RF node shall execute the following:

— utilize RF-DSAP-DATA_TX.request primitive to deliver received broadcast frame to upper layers;

— procedure ends.
---------------------- Page: 14 ----------------------
SIST EN 14908-9:2021
EN 14908-9:2021 (E)
6.3.2 Messages from CNP application layers

When ISM RF node receives CNP broadcast frame from its CNP application layer, the adaptation layer in

ISM RF node shall execute the following:

— utilize RF-DSAP-DATA_TX.request primitive to transmit broadcast frame ISM radio network by

using broadcasting and set primitives as follows:
— PDUID: as defined in Table 3;
— SourceEndPoint: as defined in 7.3;
— DestinationAddress: Broadcast as defined in Table 1;
— DestinationEndPoint: as defined in 7.3;
— if Prior bit is set to 0 in LPDU/MPDU, of EN 14908-1, set:
— QoS: 0x00, else set:
— 0x01;
— TXoptions: as defined in Table 3;
— BufferingDelay: as defined in Table 3;
— APDULength: Length of the NPDU;
— APDU: NPDU;
— use own ISM radio network unicast address as source ID;
— procedure ends.

When ISM RF gateway receives broadcasted frame, the ISM RF gateway shall execute the following:

— utilize RF-DSAP-DATA_TX.request primitive to deliver received broadcast frame to upper layers;

— transmit received frame to backhaul link;
— procedure ends.

When ISM RF node receives broadcasted frame, the ISM RF node shall execute the following:

— utilize RF-DSAP-DATA_TX.request primitive to deliver received broadcast frame to upper layers;

— procedure ends.
6.4 Unicast message flows
6.4.1 Messages from CNP network

When ISM RF gateway receives CNP unicast frame from backhaul link, the adaptation layer in ISM RF

gateway shall execute the following:

— utilize RF-DSAP-DATA_TX.request primitive to transmit unicast frame ISM radio network by using

unicasting by setting primitives as follows:
— PDUID: as defined in Table 1;
— SourceEndPoint: as defined in 7.3;
---------------------- Page: 15 ----------------------
SIST EN 14908-9:2021
EN 14908-9:2021 (E)

— DestinationAddress: unicast address as defined in Table 1, and based on address mapping

defined in 6.1;
— DestinationEndPoint: as defined in 7.3;
— if Prior bit is set to 0 in LPDU/MPDU of EN 14908-1, set:
— QoS: 0x00 else set:
— QoS: 0x01;
— TXoptions: as defined in Table 3;
— BufferingDelay: as defined in Table 3;
— APDULength: Length of the NPDU;
— APDU: NPDU;
— use own ISM radio network unicast address as source ID;
— procedure ends.

When ISM RF node receives unicast frame, with own destination address, the ISM RF node shall execute

the following:

— utilize RF-DSAP-DATA_TX.request primitive to deliver received unicast frame to upper layers;

— procedure ends.
6.4.2 Messages from RF node

When ISM RF node receives CNP unicast frame from its CNP application layer, the adaptation layer in

ISM RF node shall execute the following:

— utilize RF-DSAP-DATA_TX.request primitive to transmit unicast frame ISM radio network by using

unicasting and set primitives as follows:
— PDUID: as defined in Table 3;
— SourceEndPoint: as defined in 7.3;
— If destination subnet address is included in subnet-list, set;

— DestinationAddress: unicast address as defined in Table 1, and based on address mapping

defined in 6.1, else set:
— DestinationAddress: AnySink address as defined in Table 1;
— DestinationEndPoint: as defined in 7.3;
— If Prior bit is set to 0 in LPDU/MPDU of EN 14908-1, set:
— QoS: 0x00 else set:
— 0x01;
— TXoptions: as defined in Table 3;
— BufferingDelay: as defined in Table 3;
— APDULength: Length of the NPDU;
---------------------- Page: 16 ----------------------
SIST EN 14908-9:2021
EN 14908-9:2021 (E)
— APDU: NPDU.
— use own ISM radio network unicast address as source ID;
— procedure ends.

When ISM RF gateway receives unicast frame, the ISM RF gateway shall execute the following:

— utilize RF-DSAP-DATA_TX.request primitive to deliver received frame to upper layers;

— transmit received frame to backhaul link;
— procedure ends.

When ISM RF node receives unicast frame, with own destination address, the ISM RF node shall execute

the following:

— utilize RF-DSAP-DATA_TX.request primitive to deliver received unicast frame to upper layers;

— procedure ends.
6.5 Multicast
6.5.1 Messages from CNP network

When ISM RF gateway receives CNP multicast frame from backhaul link, the adaptation layer in ISM RF

gateway shall execute the following:

— Utilize RF-DSAP-DATA_TX.request primitive to transmit multicast frame ISM radio network by

using multicasting and set primitives as follows:
— PDUID: as defined in Table 3;
— SourceEndPoint: as defined in 7.3;

— DestinationAddress: multicast address as defined in Table 1, and based on address mapping

defined in 6.1;
— DestinationEndPoint: as defined in 7.3;
— if Prior bit is set to 0 in LPDU/MPDU of EN 14908-1, set:
— QoS: 0x00 else set:
— QoS: 0x01;
— TXoptions: as defined in Table 3;
— BufferingDelay: as defined in Table 3;
— APDULength: Length of the NPDU;
— APDU: NPDU.
— use own ISM radio network unicast address as source ID;
— procedure ends.
---------------------- Page: 17 ----------------------
SIST EN 14908-9:2021
EN 14908-9:2021 (E)

When ISM RF node receives multicast frame, with own multicast address, the ISM RF node shall execute

the following:

— utilize RF-DSAP-DATA_TX.request primitive to deliver received multicast frame to upper layers;

— procedure ends.
...

SLOVENSKI STANDARD
oSIST prEN 14908-9:2021
01-januar-2021

Odprta izmenjava podatkov v avtomatizaciji stavb, regulaciji in upravljanju stavb -

Protokol regulacijske mreže - 9. del: Brezžična komunikacija v pasu ISM

Open Data Communication in Building Automation, Controls and Building Management -

Control Network Protocol - Part 9: Wireless Communication in ISM bands
Firmenneutrale Datenkommunikation für die Gebäudeautomation und
Gebäudemanagement - Steuerungs-Netzwerk-Protokoll - Teil 9: Drahtlose
Kommunikation im ISM Band
Ta slovenski standard je istoveten z: prEN 14908-9
ICS:
35.240.67 Uporabniške rešitve IT v IT applications in building
gradbeništvu and construction industry
97.120 Avtomatske krmilne naprave Automatic controls for
za dom household use
oSIST prEN 14908-9:2021 en,fr,de

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

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oSIST prEN 14908-9:2021
DRAFT
EUROPEAN STANDARD
prEN 14908-9
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2021
ICS 35.240.67; 91.140.01; 97.120
English Version
Open Data Communication in Building Automation,
Controls and Building Management - Control Network
Protocol - Part 9: Wireless Communication in ISM bands
Firmenneutrale Datenkommunikation für die
Gebäudeautomation und Gebäudemanagement -
Steuerungs-Netzwerk-Protokoll - Teil 9: Drahtlose
Kommunikation im ISM Band

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 247.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations

which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other

language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC

Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are

aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without

notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14908-9:2021 E

worldwide for CEN national Members.
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Contents Page

European foreword ...................................................................................................................................................... 4

Introduction .................................................................................................................................................................... 5

1 Scope .................................................................................................................................................................... 6

2 Normative references .................................................................................................................................... 6

3 Terms and definitions ................................................................................................................................... 6

4 Abbreviations ................................................................................................................................................... 7

5 Overview of ISM RF in EN 14908 based systems ................................................................................. 8

5.1 General................................................................................................................................................................ 8

5.2 ISM RF radio communication introduction ........................................................................................... 8

5.2.1 Architecture ...................................................................................................................................................... 8

5.2.2 ISM RF radio network elements ................................................................................................................ 9

5.3 ISM RF functional overview ....................................................................................................................... 10

6 Control Network protocol information flows mapping to ISM RF ............................................... 11

6.1 General.............................................................................................................................................................. 11

6.2 Address mapping principles ..................................................................................................................... 11

6.3 Broadcast messages flows ......................................................................................................................... 12

6.3.1 Messages from other segments of CNP network ................................................................................ 12

6.3.2 Messages from CNP application layers.................................................................................................. 13

6.4 Unicast message flows ................................................................................................................................. 13

6.4.1 Messages from CNP network .................................................................................................................... 13

6.4.2 Messages from RF node .............................................................................................................................. 14

6.5 Multicast ........................................................................................................................................................... 15

6.5.1 Messages from CNP network .................................................................................................................... 15

6.5.2 Messages from RF Node .............................................................................................................................. 16

7 ISM RF radio network services to CNP applications ......................................................................... 17

7.1 General.............................................................................................................................................................. 17

7.2 Attributes ......................................................................................................................................................... 17

7.3 RF node addressing ...................................................................................................................................... 17

7.4 RF-DSAP Services .......................................................................................................................................... 18

7.4.1 Overview .......................................................................................................................................................... 18

7.4.2 RF-DSAP-DATA_TX.request ....................................................................................................................... 19

7.4.3 RF-DSAP-DATA_TX.confirm ....................................................................................................................... 21

7.4.4 RF-DSAP-DATA_TX.indication .................................................................................................................. 21

7.4.5 RF-DSAP-DATA_RX.indication .................................................................................................................. 22

7.4.6 RF-DSAP-DATA_TX/RX.response ............................................................................................................ 23

7.5 RF-CSAP Services ........................................................................................................................................... 23

7.5.1 Overview .......................................................................................................................................................... 23

7.5.2 RF-CSAP-ATTRIBUTE_WRITE.request ................................................................................................... 23

7.5.3 RF-CSAP-ATTRIBUTE_WRITE.confirm .................................................................................................. 26

7.5.4 RF-CSAP-ATTRIBUTE_READ.request ..................................................................................................... 27

7.5.5 RF-CSAP-ATTRIBUTE_READ.confirm ..................................................................................................... 27

7.6 Radio link layer security ............................................................................................................................ 27

Annex A (normative) ISM RF Radio characteristics ....................................................................................... 28

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A.1 General requirements ................................................................................................................................. 28

A.2 Supported operating frequency bands ................................................................................................. 28

Bibliography ................................................................................................................................................................. 29

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European foreword

This document (prEN 14908-9:2021) has been prepared by Technical Committee CEN/TC 247

“Building Automation, Controls and Building Management”, the secretariat of which is held by SNV.

This document is currently submitted to the CEN Enquiry.

This document is part of a series of European Standards for open data transmission in building

automation, control and in building management systems. The content of this document covers the data

communications used for management, automation/control and field functions. This document is based

on the American standards EIA/CEA-709.1-B Control Network Protocol Specification.

This document is part of a series of European Standards under the general title Open Data

Communication in Building Automation, Controls and Building Management — Control Network Protocol,

which comprises the following parts:
— Part 1: Protocol Stack
— Part 2: Twisted Pair Communication
— Part 3: Power Line Channel Specification
— Part 4: IP-Communication
— Part 5: Implementation
— Part 6: Application elements
— Part 7: Communication via internet protocols

— Part 8: Communication using Broadband over Power Line Networks — with internet protocols

— Part 9: Wireless Communication in ISM bands (this document)
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Introduction

This document enables utilization of wireless communication in the general title Control Network

Protocol (CNP) in the EN 14908 series. The wireless communication can provide fast and easy system

deployment, robust, de-centralized and autonomous network operation for EN 14908 based

applications.

Wireless communication is defined to operate in ISM bands, which are licensed exempt bands available

either regionally or globally.
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1 Scope

This document specifies an adaptation layer for the control network protocol (CNP), as described in

EN 14908-1 to utilize wireless communication network. This document defines the services of the

wireless communication provided to CNP layer for delivering data and commands towards and from

sensors, actuators, etc. which are wirelessly connected as part of the EN 14908-1 network.

In addition, this document defines the requirements for the radio communication applicable for CNP

layer operation.

For the radio communication different frequency bands can be utilized. Annex A defines requirement

for operation in different frequency bands.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

EN 14908-1:2014, Open Data Communication in Building Automation, Controls and Building

Management - Control Network Protocol - Part 1: Protocol Stack
3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 14908-1 and the following

apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
3.1
ISM RF radio layer
layer used for radio communications in ISM RF 14908-9 system

Note 1 to entry: Higher layers of the EN 14908-1 can access ISM RF radio layer based on interface defined in

Clause 7.
3.2
RF gateway

entity which has a backhaul connection for data delivery to the wireline CNP network

Note 1 to entry: The RF gateway operates as sink of ISM RF radio network, providing a root of routing, which in

multi-hop network RF nodes are directing traffic.
3.3
RF node

physical node capable of wireless communication that represents the highest degree of address

resolvability on a wireless network
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4 Abbreviations
AES Advanced Encryption Standard
APDU Application layer Protocol Data Unit
ARQ Automatic Repeat Request
CBC-MAC Cipher Block Chaining MAC algorithm
CMAC cipher-based Message Authentication Code
CNP Control Network Protocol
CTR Counter Mode
CRC Cyclic Redundancy Check
ISM Industrial Scientific and Medical

LPDU Link Protocol Data Unit, or frame as defined according to EN 14908-1:2014, 6.5

NPDU Network Protocol Data Unit, or packet as defined according to EN 14908-1:2014, 8.5

OMAC1 One-Key CBC-MAC
PDUID Protocol Data Unit ID
QoS Quality of Service
RF Radio Frequency
RF-CSAP RF Control Service Access Point
RF-DSAP RF Data Service Access Point
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5 Overview of ISM RF in EN 14908 based systems
5.1 General

The overall protocol architecture of the ISM RF in EN 14908 based system is depicted in Figure 1. The

higher layer protocols of EN 14908-1 can access to the ISM RF radio protocols via open interfaces as

specified in Clause 7. Annex A defines requirements for ISM RF radio protocol layers.

Figure 1 — Protocol layering
5.2 ISM RF radio communication introduction
5.2.1 Architecture

The radio communication solution for ISM RF radio communication is based on decentralized RF node

to RF node communication network architecture as depicted in Figure 2. This enables ISM RF radio

communication, to support deployments where some RF nodes are located outside of RF gateway radio

coverage. The RF-node is capable of local decision making related to data routing, used transmission

power, and used transmission time and frequency.
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Key
Router, EN 14908-1
Node, EN 14908-1
RF Gateway
RF Node
ISM RF radio network
Figure 2 — ISM RF radio network and connection to other segments of CNP network

RF nodes are routing data towards the sink of the ISM RF radio network, which is in the RF gateway.

The RF gateway delivers the data to the back-end network. There can exist one or multiple RF gateways

operating as sink in single ISM RF network. However, transmitting data between two CNP routers via

ISM RF network is not supported. To support different application requirements ISM RF radio

communication supports different operating radio modes as defined in Annex A.
5.2.2 ISM RF radio network elements
5.2.2.1 RF gateway

The RF gateway is the data concentration point, i.e. sink, in the ISM RF radio network, which provides

the backhaul connectivity to the rest of the CNP network via a CNP router. There is one to one mapping

between single RF gateway and CNP router as depicted in Figure 3. The interface between CNP router

and RF gateway is not defined.
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Figure 3 — Logical One-to-One relation between RF gateway and CNP router

The RF gateway shall have both backhaul and ISM RF radio connectivity. ISM RF gateway operates as a

sink, by collecting the data from underlaying ISM RF radio network and routes received data to

backhaul interface CNP router. RF gateway also transmits data received from CNP router towards the

RF nodes inside the ISM RF radio network. ISM RF radio network can support multiple RF gateways in

the same network.
5.2.2.2 RF node

All RF nodes in a single ISM radio network can be the same. An RF node is capable to decide to which

neighbouring RF node it shall send its data that is to be routed to RF gateway.
Data can be generated by RF node itself or received from neighbouring RF node.

Additionally, RF node is capable to decide to which neighbouring RF nodes it shall transmit data

transmitted from RF gateway to the RF node(s). Each RF node may dynamically change its routing to

adapt changing environment and possible communication load variations. The decision of RF node

routing may be done locally based on available information from environment and desired operational

mode.
5.3 ISM RF functional overview

The ISM RF radio network may consist of RF nodes belonging into one or different CNP subnets,

however the data routing in radio may not use subnets. Single CNP subnet shall not include nodes inside

and outside single ISM RF radio network.
The ISM RF network supports following transmission modes:
— Broadcasting;
— Unicasting;
— Multicasting.
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6 Control Network protocol information flows mapping to ISM RF
6.1 General

The ISM RF network supports manual and/or automatic RF node and RF gateway configuration.

In manual configuration following parameters are configured to RF node and RF gateway before

operation in ISM RF radio network:
— ISM RF Network ID;
— All addressed defined in 6.1;
— Security parameters for ISM RF network.

In automatic configuration following parameters are configured to RF node and RF gateway before

operation in ISM RF radio network:
— ISM RF network ID;
— Security parameters for ISM RF network;

— Temporary ISM radio network unicast address (4 octets) which RF node and RF gateway replaces

as defined in 6.1, when obtaining subnet identifier and node number.

The 7.5 defines means to configure the RF node and RF gateway this configuration can be done by CNP

network or done by other means.
6.2 Address mapping principles
Each ISM RF Node and RF gateway shall have following addresses:
— Unique Node Id (48 bits) as defined according to EN 14908-1;

— Domain Id (0/8/24/48) bits as defined according to EN 14908-1, which is set to same value for all

ISM RF nodes and RF gateways in single ISM network;

— One subnet identifier (8 bits) and one node number (7 bits) that is unique inside the subnet as

defined according to EN 14908-1;
— One or multiple group identifier (8 bits) as defined according to EN 14908-1;
— ISM radio network unicast address (4 octets) as defined in Table 1.

The subnet identifier, node number and ISM radio network unicast address shall be set in ISM RF node

and ISM RF gateway configuration as follows:

— The second last octet of ISM radio network unicast address shall be set to same bit sequence as

subnet identifier;

— The seven (7) LSBs of the ISM radio network unicast address shall be set to same bit sequence as

node number.

If ISM RF node or ISM RF gateway belongs to one or multiple groups defined according to EN 14908-1,

the group identifier is set to ISM RF node as follows:

— The most significant octet of the ISM radio network multicast address is set to 0x8 and the last octet

of the address is set to same bit sequence as group identifier according to EN 14908-1.

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Additionally, RF node and RF gateway has following addresses configured:
— All subnet identifiers used to configure RF nodes inside ISM RF network;
— All group identifiers used configure RF nodes only inside ISM RF network.

The RF node and RF gateway shall form subnet-list from configured subnet identifiers.

The RF node RF gateway shall form group-list from configured group identifiers.
6.3 Broadcast messages flows
6.3.1 Messages from other segments of CNP network

When ISM RF gateway receives CNP broadcast frame from backhaul link, the adaptation layer in ISM RF

gateway shall execute the following:

— utilize RF-DSAP-DATA_TX.request primitive to transmit broadcast frame ISM radio network by

using broadcasting and set primitives as follows:
— PDUID: as defined in Table 3;
— SourceEndPoint: as defined in 7.3;
— DestinationAddress: Broadcast as defined in Table 1;
— DestinationEndPont: as defined in 7.3;
— if Prior bit is set to 0 in LPDU/MPDU of EN 14908-1, set:
— QoS: 0x00 else set:
— QoS: 0x01;
— TXoptions: as defined in Table 3;
— BufferingDelay: as defined in Table 3;
— APDULength: Length of the NPDU;
— APDU: NPDU;
— use own ISM radio network unicast address as source ID;
— procedure ends;

NOTE If there are multiple RF gateways in single ISM radio network each RF gateway operates

independently.

When ISM RF node receives broadcasted frame, the ISM RF node shall execute the following:

— utilize RF-DSAP-DATA_TX.request primitive to deliver received broadcast frame to upper layers;

— procedure ends.
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6.3.2 Messages from CNP application layers

When ISM RF node receives CNP broadcast frame from its CNP application layer, the adaptation layer in

ISM RF node shall execute the following:

— utilize RF-DSAP-DATA_TX.request primitive to transmit broadcast frame ISM radio network by

using broadcasting and set primitives as follows:
— PDUID: as defined in Table 3;
— SourceEndPoint: as defined in 7.3;
— DestinationAddress: Broadcast as defined in Table 1;
— DestinationEndPont: as defined in 7.3;
— if Prior bit is set to 0 in LPDU/MPDU, of EN 14908-1, set:
— QoS: 0x00, else set:
— 0x01;
— TXoptions: as defined in Table 3;
— BufferingDelay: as defined in Table 3;
— APDULength: Length of the NPDU;
— APDU: NPDU;
— use own ISM radio network unicast address as source ID;
— procedure ends.

When ISM RF gateway receives broadcasted frame, the ISM RF gateway shall execute the following:

— utilize RF-DSAP-DATA_TX.request primitive to deliver received broadcast frame to upper layers;

— transmit received frame to backhaul link;
— procedure ends.

When ISM RF node receives broadcasted frame, the ISM RF node shall execute the following:

— utilize RF-DSAP-DATA_TX.request primitive to deliver received broadcast frame to upper layers;

— procedure ends.
6.4 Unicast message flows
6.4.1 Messages from CNP network

When ISM RF gateway receives CNP unicast frame from backhaul link, the adaptation layer in ISM RF

gateway shall execute the following:

— utilize RF-DSAP-DATA_TX.request primitive to transmit unicast frame ISM radio network by using

unicasting by setting primitives as follows:
— PDUID: as defined in Table 1;
— SourceEndPoint: as defined in 7.3;
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— DestinationAddress: unicast address as defined in Table 1, and based on address mapping

defined in 6.1;
— DestinationEndPont: as defined in 7.3;
— if Prior bit is set to 0 in LPDU/MPDU of EN 14908-1, set:
— QoS: 0x00 else set:
— QoS: 0x01;
— TXoptions: as defined in Table 3;
— BufferingDelay: as defined in Table 3;
— APDULength: Length of the NPDU;
— APDU: NPDU;
— use own ISM radio network unicast address as source ID;
— procedure ends.

When ISM RF node receives unicast frame, with own destination address, the ISM RF node shall execute

the following:

— utilize RF-DSAP-DATA_TX.request primitive to deliver received unicast frame to upper layers;

— procedure ends.
6.4.2 Messages from RF node

When ISM RF node receives CNP unicast frame from its CNP application layer, the adaptation layer in

ISM RF node shall execute the following:

— utilize RF-DSAP-DATA_TX.request primitive to transmit unicast frame ISM radio network by using

unicasting and set primitives as follows:
— PDUID: as defined in Table 3;
— SourceEndPoint: as defined in 7.3;
— If destination subnet address is included in subnet-list, set;

— DestinationAddress: unicast address as defined in Table 1, and based on address mapping

defined in 6.1, else set:
— DestinationAddress: AnySink address as defined in Table 1;
— DestinationEndPont: as defined in 7.3;
— If Prior bit is set to 0 in LPDU/MPDU of EN 14908-1, set:
— QoS: 0x00 else set:
— 0x01;
— TXoptions: as defined in Table 3;
— BufferingDelay: as defined in Table 3;
— APDULength: Length of the NPDU;
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— APDU: NPDU.
— use own ISM radio network unicast address as source ID;
— procedure ends.

When ISM RF gateway receives unicast frame, the ISM RF gateway shall execute the following:

— utilize RF-DSAP-DATA_TX.request primitive to deliver received frame to upper layers;

— transmit received frame to backhaul link;
— procedure ends.

When ISM RF node receives unicast frame, with own destination address, the ISM RF node shall execute

the following:

— utilize RF-DSAP-DATA_TX.request primitive to deliver received unicast frame to upper layers;

— procedure ends.
6.5 Multicast
6.5.1 Messages from CNP network

When ISM RF gateway receives CNP multicast frame from backhaul link, the adaptation layer in ISM RF

gateway shall execute the following:

— Utilize RF-DSAP-DATA_TX.request primitive to transmit multicast frame ISM radio network by

using multicasting and set primitives as follows:
— PDUID: as defined in Table 3;
— SourceEndPoint: as defined in 7.3;

— DestinationAddress: multicast address as defined in Table 1, and based on address mapping

defined in 6.1;
— DestinationEndPont: as defined in 7.3;
— if Prior bit is set to 0 in LPDU/MPDU of EN 14908-1, set:
— QoS: 0x00 else set:
— QoS: 0x01;
— TXoptions: as defined in Table 3;
— BufferingDelay: as defined in Table 3;
— APDULength: Length of the NPDU;
— APDU: NPDU.
— use own ISM radio network unicast address as source ID;
— procedure ends.
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When ISM RF node receives multicast frame, with own multicast address, the ISM RF node shall execute

the following:

— utilize RF-DSAP-DATA_TX.request primitive to deliver received multicast frame to upper layers;

— procedure ends.
6.5.2 Messages from RF Node

When ISM RF node receives CNP multicast frame from its CNP application layer, the adaptation layer in

ISM RF node shall execute the following:

— utilize RF-DSAP-DATA_TX.request primitive to transmit multicast frame ISM radio network by

using multicasting and set primitives as follows:
— PDUID: as defined in Table 3;
— SourceEndPoint: as defined in 7.3;

— DestinationAddress: multi-cast address as defined in Table 1, and based on address mapping

defined in 6.1;
— DestinationEndPont: as defined in 7.3;
— if Prior bit is set to 0 in LPDU/MPDU, of EN 14908-1 set:
— QoS: 0x00 else set:
— 0x01;
— TXoptions: as defined in Table 3;
— BufferingDelay: as defined in Table 3;
— APDULength: Length of the NPDU;
— APDU: NPDU;
— use own ISM radio network unicast address as source ID.
— If destination multicast address is not included in group-list:

— Utilize RF-DSAP-DATA_TX.request primitive to transmit multicast frame ISM radio network by

using unicast and set primitives as follows:
— PDUID: as defined in Table 3;
— SourceEndPoint:
...

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