ISO/IEC 29145-3:2014
(Main)Information technology - Wireless Beacon-enabled Energy Efficient Mesh network (WiBEEM) for wireless home network services — Part 3: NWK Layer
Information technology - Wireless Beacon-enabled Energy Efficient Mesh network (WiBEEM) for wireless home network services — Part 3: NWK Layer
ISO/IEC 29145-3:2014(E) specifies the network layer (NWK) of the WiBEEM (Wireless Beacon-enabled Energy Efficient Mesh network) protocol for wireless home network services that supports a low power-consuming wireless mesh network as well as device mobility and QoS.
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General Information
Standards Content (Sample)
ISO/IEC 29145-3
Edition 1.0 2014-03
INTERNATIONAL
STANDARD
Information technology – Wireless beacon-enabled energy efficient mesh
network (WiBEEM) for wireless home network services –
Part 3: NWK layer
ISO/IEC 29145-3:2014-03(en)
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ISO/IEC 29145-3
Edition 1.0 2014-03
INTERNATIONAL
STANDARD
Information technology – Wireless beacon-enabled energy efficient mesh
network (WiBEEM) for wireless home network services –
Part 3: NWK layer
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
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ICS 35.200 ISBN 978-2-8322-1450-3
Warning! Make sure that you obtained this publication from an authorized distributor.
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– 2 – ISO/IEC 29145-3 © ISO/IEC 2014
CONTENTS
FOREWORD . 4
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviations . 6
3.1 Terms and definitions . 6
3.2 Abbreviations . 7
3.3 Conventions . 8
4 Conformance . 8
5 Overview of the WiBEEM technology . 8
6 NWK layer specifications . 8
6.1 General . 8
6.2 NWK layer service specifications . 8
6.2.1 Overview . 8
6.2.2 NWK data service . 9
6.2.3 NWK management service . 12
6.2.4 Network formation . 14
6.2.5 Allowing devices to join . 16
6.2.6 Begin as a router . 18
6.2.7 Joining a network . 19
6.2.8 Joining a device directly to a network . 22
6.2.9 Leaving a network . 24
6.2.10 Resetting a device . 26
6.2.11 Receiver synchronisation . 27
6.2.12 Information base maintenance . 30
Bibliography . 34
Figure 1 – NWK layer structure . 9
Figure 2 – Message sequence chart for resetting the network layer . 27
Figure 3 – Message sequence chart for synchronising in a non-beaconing network . 30
Table 1 – NLDE-DATA.request parameters . 10
Table 2 – NLDE-DATA.confirm parameters . 11
Table 3 – NLDE-DATA.indication parameters . 12
Table 4 – Summary of primitives used by NWK layer . 12
Table 5 – NLME-NETWORK-DISCOVERY.request parameters . 13
Table 6 – NLME-WiBEEM-DISCOVERY.confirm paramters . 14
Table 7 – Network descriptor information fields . 14
Table 8 – NLME-WRC-OPERATING.request parameters . 15
Table 9 – NLME-NETWORK-FORMATION.confirm parameters . 16
Table 10 – NLME-ALLOW-JOINING.request . 17
Table 11 – NLME-ALLOW-JOINING.confirm parameters . 17
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ISO/IEC 29145-3 © ISO/IEC 2014 – 3 –
Table 12 – NLME-SET-SUPERFRAME.request parameters . 18
Table 13 – NLME-SET-SUPERFRAME.confirm parameters . 19
Table 14 – NLME-JOIN.request parameters . 20
Table 15 – NLME-JOIN.indication parameters . 21
Table 16 – NLME-JOIN.confirm parameters . 22
Table 17 – NLME-DETERMINED-JOIN.request parameters . 22
Table 18 – Capability information parameter format . 23
Table 19 – NLME-DETERMINED-JOIN.confirm parameters . 23
Table 20 – NLME-LEAVE.request parameters . 24
Table 21 – NLME-LEAVE.indication parameters . 25
Table 22 – NLME-LEAVE.confirm parameters . 25
Table 23 – NLME-RESET.confirm parameters . 27
Table 24 – NLME-SYNC.request parameters . 28
Table 25 – NLME-SYNC.confirm parameters . 29
Table 26 – NLME-READ-NIB.request parameters . 30
Table 27 – NLME-READ-NIB.confirm parameters . 31
Table 28 – NLME-WRITE-NIB.request parameters . 32
Table 29 – NLME-WRITE-NIB.confirm parameters . 33
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– 4 – ISO/IEC 29145-3 © ISO/IEC 2014
INFORMATION TECHNOLOGY –
WIRELESS BEACON-ENABLED ENERGY EFFICIENT MESH
NETWORK (WIBEEM) FOR WIRELESS HOME NETWORK SERVICES –
Part 3: NWK layer
FOREWORD
1) ISO (International Organization for Standardization) and IEC (International Electrotechnical Commission) form the
specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in
the development of International Standards. Their preparation is entrusted to technical committees; any ISO and
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Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote.
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patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
International Standard ISO/IEC 29145-3 was prepared by subcommittee 25: Interconnection
of information technology equipment, of ISO/IEC joint technical committee 1: Information
technology.
The list of all currently available parts of the ISO/IEC 29145 series, under the general title
Information technology – Wireless beacon-enabled energy efficient mesh network (WiBEEM)
for wireless home network services, can be found on the IEC web site.
This International Standard has been approved by vote of the member bodies, and the voting
results may be obtained from the address given on the second title page.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
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ISO/IEC 29145-3 © ISO/IEC 2014 – 5 –
INTRODUCTION
This International Standard specifies the WiBEEM (Wireless Beacon-enabled Energy Efficient
Mesh network) protocol, which provides low-power-consuming mesh network functions by
enabling the “beacon mode operation”. WiBEEM is based on the IEEE 802.15.4 standard with
additional upper layer protocols and a specific usage of the MAC layer protocol. Through the
novel use of beacons, WiBEEM technology achieves longer battery life, larger network
support, quicker response, enhanced mobility and dynamic reconfiguration of the network
topology compared with other protocols such as ZigBee.
In the beacon mode, beacon information propagates over the entire mesh network nodes
during the BOP (Beacon-Only Period) of the superframe structure without any beacon
conflicts by utilising a smart beacon scheduling technique in the BOP. It also provides
location information about moving devices without spending extra time running a positioning
and locating algorithm by using RSSI (Received Signal Strength Indication). These features
allow the WiBEEM protocol to be widely used for wireless home network services in the
ubiquitous network era.
One of the key features of the WiBEEM protocol is that it has a special time interval called
BOP (Beacon-Only Period) in the superframe structure that allows more than two beacons to
be transmitted. This unique time period is located at the beginning of the Superframe.
Because the BOP does not use the CSMA/CA mechanism, the network will not work properly
in the beacon mode unless an appropriate algorithm is applied. This algorithm needs to
manage and control multiple beacons in a single superframe. The solution is the Beacon
Scheduling method applied in the BOP to avoid collisions among beacons, providing
synchronisation among all the nodes of the entire mesh network.
For the network layer, the NAA (Next Address Available) mechanism, which is a short address
allocation algorithm, has been adopted to provide an efficient way of utilising the complete 16-
bit address space. The NAA algorithm does not limit the maximum number of children nodes
that a node of a mesh network can have. Since the number of children nodes is unlimited, the
NAA mechanism allows the WiBEEM protocol to be used not only for home network services,
but also for community services. WiBEEM can be used where high network expandability
through efficient use of short address spaces, device mobility and end-to-end QoS are
required.
This part of ISO/IEC 29145 specifies the network layer (NWK) of the WiBEEM protocol for
wireless home network services that support a low-power-consuming wireless mesh network
as well as device mobility and QoS.
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INFORMATION TECHNOLOGY –
WIRELESS BEACON-ENABLED ENERGY EFFICIENT MESH
NETWORK (WIBEEM) FOR WIRELESS HOME NETWORK SERVICES –
Part 3: NWK layer
1 Scope
This part of ISO/IEC 29145 specifies the network layer (NWK) of the WiBEEM (Wireless
Beacon-enabled Energy Efficient Mesh network) protocol for wireless home network services
that support a low-power-consuming wireless mesh network as well as device mobility and
quality of service.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
ISO/IEC 29145-1:2014, Information technology – Wireless beacon-enabled energy efficient
mesh network (WiBEEM) for wireless home network services – Part 1: PHY layer
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
association
service used to establish the membership of a device in a wireless mesh network
3.1.2
co-ordinator
wireless device configured to provide synchronisation services through the transmission of
beacons
Note 1 to entry: If a co-ordinator is the principal controller of a wireless mesh network, it is called the WMC
(WiBEEM mesh co-ordinator).
3.1.3
device
entity containing an implementation of the WiBEEM applications, NWK, MAC and physical
interface to the wireless medium
3.1.4
frame
data format of aggregated bits from a medium access control (MAC) layer entity transmitted in
a specified sequence
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ISO/IEC 29145-3 © ISO/IEC 2014 – 7 –
3.1.5
packet
format of aggregated bits transmitted in a specified sequence across the physical medium
3.1.6
personal operating space
space of typically about 10 m around a person or an object, no matter whether this person or
object is stationary or in motion
3.1.7
protocol data unit
unit of data exchanged between two peer entities
3.1.8
WiBEEM end device
WiBEEM device acting as the leaf device of a mesh network
3.1.9
WiBEEM mesh co-ordinator
WiBEEM device acting as the principal controller of a mesh network
Note 1 to entry: A WiBEEM mesh network has exactly one WiBEEM mesh co-ordinator.
3.1.10
WiBEEM routable co-ordinator
WiBEEM device acting as the router of a mesh network
3.1.11
wireless medium
medium used to implement the transfer of protocol data units (PDUs) between peer physical
layer (PHY) entities of a low-rate wireless mesh network
3.2 Abbreviations
The following acronyms and abbreviations are used in this standard and commonly used in
other industry publications.
AES Advanced Encryption Standard
ARQ Automatic Request-Response
BO Beacon Order
BOP Beacon Only Period
BTTSL Beacon Transmit Time Slot Length
CAP Contention Access Period
ID Identifier
MIB Management Information Base
NAA Next Address Available
PDU Protocol Data Unit
PQP Prioritised QoS Period
QoS Quality of Service
RAP Reservation-Based Access Period
WED WiBEEM End Device
WiBEEM Wireless Beacon-enabled Energy Efficient Mesh network
WMC WiBEEM Mesh Co-ordinator
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WRC WiBEEM Routable Co-ordinator
3.3 Conventions
All the italicised words used in this standard represent relevant constants defined and stored
in the MIB (management information base) of each layer.
4 Conformance
A WiBEEM device that claims conformance to this part of ISO/IEC 29145 shall implement all
the primitives that are specified in 6.2. Each WiBEEM device shall be able to act as a WMC, a
WRC and a WED. When operating in the role of a WMC it shall act as specified in 5.3.2 of
ISO/IEC 29145-1:2014, when operating in the role of a WRC, it shall act as specified in 5.3.3
of ISO/IEC 29145-1:2014, and when operating in the role of a WED, it shall act as specified in
5.3.3 of ISO/IEC 29145-1.
5 Overview of the WiBEEM technology
Clause 5 of ISO/IEC 29145-1:2014 presents an overview of the WiBEEM technology and the
functionalities of the WiBEEM devices.
6 NWK layer specifications
6.1 General
This clause specifies the NWK layer of this standard. The NWK layer handles network
management, message broker and routing. This clause specifies the services that shall be
provided by the WiBEEM NWK layer.
Constants and attributes that are specified and maintained by the MAC layer are written in the
text of this clause in italics. Constants have a general prefix of “a”. Attributes have a general
prefix of “mac”.
6.2 NWK layer service specifications
6.2.1 Overview
The NWK layer services provide an interface between the NWK layer and the APP layer. The
NWK layer provides two services, accessed through two SAPs:
– MAC data service, accessed through the NWK layer data SAP (NLDE-SAP); and
– NWK management service, accessed through the NLME-SAP.
Figure 1 depicts the elements and interfaces of NWK layer.
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ISO/IEC 29145-3 © ISO/IEC 2014 – 9 –
NLME-WiBEEM-DISCOVERY.request
NLME-WiBEEM-DISCOVERY.confirm
NLME-WRC-OPERATING.request
NLME-WRC-OPERATING.confirm
NLME-ALLOW-JOINING.request
NLME-ALLOW-JOINING.confirm
NLME-SET-SUPERFRAME.request NLME-SET-SUPERFRAME.confirm
NLDE-DATA.confirm
NLME-JOIN.request
NLME-JOIN.confirm
NLDE-DATA.indication
NLME-DETERMINED-JOIN.request
NLME-JOIN.indication
NLME-LEAVE.request
NLME-DETERMINED-JOIN.confirm
NLME-RESET.request
NLME-LEAVE.confirm
NLME-SYNC.request
NLME-LEAVE.indication
NLME-READ-NIB.request
NLME-RESET.confirm
NLME-WRITE-NIB.request NLME-SYNC.confirm
NLME-SYNC.indication
NLDE-DATA.request
NLME-READ-NIB.confirm
NLME-WRITE-NIB.confirm
Next Higher Layer Entity
nwkBCSN
nwkPassiveAckTimeout
NLDE-SAP NLME-SAP
nwkMaxBroadcastRetries
nwkMaxChildren
nwkMaxDepth
nwkMaxRouters
nwkNeighborTable
nwkNetworkBroadcastDeliveryTime
NLDE NLME
nwkReportConstantCost
nwkRouteDiscoveryRetriesPermitted
NIB
nwkRouteTable
nwkSecureAllFrames
nwkSecurityLevel
MLDE-SAP MLME-SAP
nwkSymLink
nwkCapabilityformation
MAC Layer Entity
wakeupSuperframePeriod
Figure 1 – NWK layer structure
6.2.2 NWK data service
6.2.2.1 Overview
The NWK layer data entity SAP (NLDE-SAP) supports the transport of application protocol
data units (APDUs) between peer application entities.
6.2.2.2 NLDE-DATA.request
6.2.2.2.1 Function
This primitive requests the transfer of a data PDU (NSDU) from the local Application layer
entity to a single or multiple peer application layer entities.
6.2.2.2.2 Semantics of the service primitive
The semantics of this primitive is as follows:
DE-DATA.request (
DstAddr,
NsduLength,
Nsdu,
NsduHandle,
BroadcastRadius,
DiscoverRoute,
SecurityEnable
)
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Table 1 specifies the parameters for the NLDE-DATA.request primitive.
Table 1 – NLDE-DATA.request parameters
Name Type Valid range Description
The network address of the entity or entities to
DstAddr Device address Specified by the DstAddr
which the NSDU is being transferred.
The number of octets comprising the NSDU
NsduLength integer
≤nwkcMaxPayloadSize
to be transferred.
The set of octets comprising the NSDU to be
Nsdu Set Of Octets –
transferred.
The handle associated with the NSDU to be
NsduHandle integer 0x00 to 0xff
transmitted by the NWK layer entity.
The distance, in hops, that a broadcast frame
BroadcastRadius integer 0x00 to 0xff
will be allowed to travel through the network.
The DiscoverRoute parameter may be used to
enable route discovery operations for the transit
of this frame.
DiscoverRoute Boolean TRUE or FALSE
TRUE = enable route discovery
FALSE = disable route discovery
The SecurityEnable parameter may be used
Security enable Boolean TRUE or FALSE to enable NWK layer security processing for
the current frame.
6.2.2.2.3 When generated
This primitive is generated by a local APS sublayer entity whenever a data PDU (NSDU) is to
be transferred to a peer APS sublayer entity.
6.2.2.2.4 Effect on receipt
On receipt of this primitive on a device that is not currently associated, the NWK layer will
issue an NLDE-DATA.confirm primitive with a status of INVALID_REQUEST.
On receipt of this primitive, the NLDE first constructs an NPDU in order to transmit the
supplied NSDU.
If, during processing, the NLDE issues the NLDE-DATA.confirm primitive prior to transmission
of the NSDU, all further processing is aborted.
6.2.2.3 NLDE-DATA.confirm
6.2.2.3.1 Function
This primitive reports the results of a request to transfer a data PDU (NSDU) from a local APS
sublayer entity to a single peer APS sublayer entity.
6.2.2.3.2 Semantics of the service primitive
The semantics of this primitive is as follows:
NLDE-DATA.confirm (
NsduHandle,
Status
)
Table 2 specifies the parameters for the NLDE-DATA.confirm primitive.
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ISO/IEC 29145-3 © ISO/IEC 2014 – 11 –
Table 2 – NLDE-DATA.confirm parameters
Name Type Valid range Description
The handle associated with the
nsduHandle Integer 0x00 to 0xff
NSDU being confirmed.
SUCCESS, TRANSACTION_OVERFLOW,
TRANSACTION_EXPIRED,
CHANNEL_ACCESS_FAILURE,
INVALID_GTS, NO_ACK, The status of the corresponding
Status Enumeration
UNAVAILABLE_KEY, request.
FRAME_TOO_LONG,
FAILED_SECURITY_CHECK,
or INVALID_PARAMETER
6.2.2.3.3 When generated
This primitive is generated by the local NLDE in response to the reception of an NLDE-
DATA.request primitive.
6.2.2.3.4 Effect on receipt
On receipt of this primitive the APS sublayer of the initiating device is notified of the result of
its request to transmit. If the transmission attempt was successful, the status parameter will
be set to SUCCESS. Otherwise, the status parameter will indicate the error.
6.2.2.4 NLDE-DATA.indication
6.2.2.4.1 Function
This primitive indicates the transfer of a data PDU (NSDU) from the NWK layer to the local
APS sublayer entity.
6.2.2.4.2 Semantics of the service primitive
The semantics of this primitive is as follows:
NLDE-DATA.indication (
SrcAddress,
NsduLength,
Nsdu,
LinkQuality
)
Table 3 specifies the parameters for the NLDE-DATA.indication primitive.
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Table 3 – NLDE-DATA.indication parameters
Name Type Valid range Description
SrcAddre 16-bit Device Any valid device address The individual device address from which the NSDU
originated.
address Except the broadcast
Address
NsduLength integer The number of octets comprising the NSDU being
≤nwkcMaxPayloadSize
indicated.
Nsdu Set of Object – The set of octets comprising the NSDU being indicated.
LinkQuality Integer 0x00 to 0xff The link quality indication delivered by the MAC on receipt
of this frame as a parameter of the MAC-DATA.indication
primitive.
6.2.2.4.3 When generated
This primitive is generated by the NLDE and issued to the APS sublayer on receipt of an
appropriately addressed data frame from the local MAC sublayer entity.
6.2.2.4.4 Effect on receipt
On receipt of this primitive the APS sublayer is notified of the arrival of data at the device.
6.2.3 NWK management service
6.2.3.1 Overview
The NWK layer management entity SAP (NLME-SAP) allows the transport of management
commands between the next higher layer and the NLME. Table 4 summarises the primitives
supported by the NLME through the NLME-SAP interface. See the following subclauses for
more details on the individual primitives.
Table 4 – Summary of primitives used by NWK layer
Name Request Indication Response Confirm
NLME-WiBEEM-DISCOVERY O O
NLME-WRC-OPERATING O O
NLME-ALLOW-JOINING O O
NLME-WRITE-NIB-SUPERFRAME O O
NLME-JOIN O O O
NLME-DETERMINED-JOIN O O
NLME-LEAVE O O O
NLME-RESET O O
NLME-SYNC O O O
NLME-READ-NIB O O
NLME-WRITE-NIB O O
6.2.3.2 Network discovery
The NWK layer management entity SAP (NLME-SAP) supports the discovery of operating
networks. The primitives employed in network discovery are the NLME-NETWORK-
DISCOVERY primitives.
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ISO/IEC 29145-3 © ISO/IEC 2014 – 13 –
6.2.3.3 NLME-WiBEEM-DISCOVERY.request
6.2.3.3.1 Functi
...
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