ITS-S application process residing in the application entity

ITS-S application which is capable of supporting features specific to CALM

NOTE CI selection management is an example.

data unit exchanged between ITS-S application processes

element in an ITS stationthat performs information processing for an ITS-S service

characteristic of a material entity that is not and has never been equipped with communications equipment for sending data to or receiving data from connected entities

ITS-S part of the ITS station reference architecture that is responsible for providing privacy, communication security and system security

ITS-S node used to interconnect two different OSI protocol stacks at layers 5 through to 7

NOTE 1 to entry An ITS-S gateway can convert between different protocols

implementation of an ITS station in a central ITS subsystem

a source node defines a geographical destination area and distributes information to appropriate neighbors; receiving nodes being outside the destination area re-distribute the information to appropriate neighbors; receiving nodes being inside the destination area broadcast the information.

legal entity for which data retrieval is requested from the communications service provider (CSP), through the data retention (DR) system

name of an ITS message set

set of data transmitted at the application layer from vehicles to probe data collectors

NOTE A probe payload includes/constitutes probe messages and authentication data. A probe message does not include any personal data, however, personal data may be included in a probe payload.

data item included in a probe message

functional and physical means which serve as the repository where all data to be retained are stored, enforcing all required security measures

set of bounded secured managed domains that meet a defined set of ITS industry security requirements

communication module management entity responsible for direct control of communication interface

set of resources that can be used for PSCCH and PSSCH

NOTE Resource pool is defined with the help of start RB, number of sub-channels, size of sub-channel, and available subframes.

geo-anycast provides data dissemination from a source node to all nodes within a specified target area

NOTE The first station in the target area receiving the data shall forward the received data in a next hop. All other stations in the target area must not further forward the received data.

geo-routing network layer protocol using addresses in the form of geo-coordinates which identify target areas of possible destination stations

set of data required in order to effect a transmission

NOTE It is (the information) processed at the communication layer, such as a unique communication ID, and includes information on the transmitting/original entity. Personal data may be included depending on the communication medium used.

ITS-S router with additional functionality that provides connectivity to other ITS communication nodes over external networks

composition of multiple access technologies and communication protocols combined to provide complementary or redundant communication channels

allows a distinction to be made between several physically available media

globally unique, registered reference number identifying a non-parameterized communications protocol stack

implementation of an ITS-S application process within the application entity

NOTE 1 to entry An implementation is typically associated with an implementation name, a version and release number.

installation of an implementation of an ITS-S application process on an ITS station

NOTE 1 to entry An implementation is typically associated with an implementation name, a version and release number.

NOTE 2 to entry An installation is typically associated with a specific licence code or serial number.

ITS-S router that connects two or more ITS station-internal networks

instantiation of an ITS station

information transfer path

ITS-S internal management communications

directed sequence of nodes connected by links, starting at a source node and ending at one or more destination nodes

ITS-S entity that delivers one or more ITS-S communication services

association of two or more wireless communication devices between which a functional wireless communication link is available for mutual exchange of data/information

NOTE Application sessions engage in and complete transactions using communication sessions (see “application session”).

instantiation of a specific access technology and ITS-S access layer protocol

wireless station that communicates with the equipment under test (EUT) by using the communications access for land mobiles (CALM) medium for the application management (AM) conformance test

not directly identifiable data to provide information about an individual in combination with other information

NOTE Contextual data requires the same level of protection as personal data.

parameter of a CI or virtual CI (VCI) specified in ISO 21218:2008

short-range networked communications WiFi access technology used mostly in urban environments and in personal devices such as smartphones, tablets and laptops

NOTE 1 to entry An example of urban WiFi is IEEE 802.11 Basic Service Set (BSS) for WLAN access used in 2,4 GHz or 5,4 GHz frequency range.

wireless broadband system including communication between user terminals and wireless access points in which the user terminals may move within the communication zones of the wireless access points during communication sessions, but session handover between wireless access points is not supported

mobile communication facility capable of receiving and transmitting information from/to the base stations

characteristic of a material entity that is equipped with communications equipment that is not active or is otherwise unable to send data to or receive data from connected entities

period of time during which the physical medium is allocated either to the fixed equipment or to the mobile equipment

fraction of the total number of sub-channels used by the ITS station for its transmissions out of the total number of configured (granted) sub-channels over a measurement period of 1 000 ms

NOTE This definition is access layer dependant and is specified in ETSI TS 136 214.

feature of an ITS station used to combine multiple access technologies and protocols

an entity providing a service to a client entity where the service provider entity acts as a communications master, initiating and controlling the service session

ITS-S entity that has an ITS-S communication need to be fulfilled

ITS-S need for communication functionality that connects an ITS-Sto other nodes

A command issued by the CALM CI layer and sent to the CALM management via the M-SAP

command issued by the ITS-S networking and transport layer and sent to the ITS-S management entity via the MN-SAP

a command issued by the CALM networking layer and sent to the CALM management via the N-SAP

request or response message PDU out of the set REQW, REQN, RES

command issued by the ITS-S facilities layer and sent to the ITS-S security entity via the SF-SAP

command issued by the ITS-S networking and transport layer and sent to the ITS-S security entity via the SN-SAP

unique set of parameter values controlling the behaviour of the DSRC

protocol data unit exchanged between peer ITS-S networking & transport layers

NOTE 1 to entry The deprecated term ITS-NPDU is in use in published standards with the same meaning as ITS-NTPDU.

an event based probe data element is an item of data included in an event based probe message, typically describing the event that has triggered the transmission of the message

wireless broadband system including communication between user terminals and wireless access points in which the location of the user terminals and the wireless access points may change, but are stationary during communication sessions (i.e. consistent with “nomadic wireless access” as defined in Recommendation ITUR F.1399)

a command issued by the CALM management and sent to the CALM service layer via the A-SAP

a command issued by the CALM management in order to get the value of one or several CI parameters. It is sent via the M-SAP to the CALM CI-layer.

command issued by the ITS-S management entity and sent to the ITS-S networking and transport layer via the MN-SAP

A command issued by the CALM management and sent to the CALM networking layer via the N-SAP.

command issued by the ITS-S security entity and sent to the ITS-S access layer via the SI-SAP

commands sent within probe vehicle systems to manage the content and transmission of probe messages.

NOTE Examples include: (a) selectively enable or disable various levels of probe data reporting, (b) selectively enable or disable reporting of particular types of probe data, (c) adjust the criteria for probe data reporting for specific probe data elements (for example “do not report a smaller than ±3 degree difference in air temperature), or (d) adjust the criteria for probe data reporting for specific probe data elements based on the delta value. These PDRM instructions can be structured with time and/or geographic information to define a context which the instructions are valid.

ITS-S protocol layer in the ITS station reference architecture containing the OSI physical and data link layer protocols for ITS communications

NOTE 1 to entry Within the Internet Engineering Task Force (IETF), the term “link layer” is used to describe the same functionality as the ITS-S access layer.

NOTE 2 to entry Within the US, the NTCIP standards use the term “subnet layer” to describe the same functionality as the ITS-S access layer.

ITS-Sfunctionalities in an ITS-S node that enable connecting two networks and forwarding packets not explicitly addressed to the ITS-S node

interface between the access layer and the networking and transport layer

interface between the ITS-S management entity and the ITS-S facilities layer

interface between the ITS-S management entity and the ITS-S networking & transport layer

interface between the ITS-S networking & transport layer and the ITS-S facilities layer

interface between the ITS-S security entity and ITS-S applications

interface between the ITS-S security entity and the ITS-S access layer

is a logical property of a physical wireless communication channel to manage the access of applications to the wireless medium which may include assignment of a service channel or an auxiliary channel to an application, and to run application sessions for applications with high user priority

set of messages designed for an ITS-related purpose

name of an ITS message set used to carry information on digital maps covering the area of intersections

party which is responsible for receiving probe messages sent by a probe data sender

NOTE A probe data collector is responsible for probe data at any stage.

entity performing remote ITS station management in an ITS station communication unit

service data unit exchanged between ITS-S networking and transport layer and ITS-S facilities layer

radio link between the ITS stations for direct communication

communications using support of an infrastructure network

a service offered by a FAST service provider via a wireless communication interface to a FAST service user, which may provide as a minimum, but not limited to this, a single information message, where the service is implemented in a provider application and in a client application

the network layer routes the data grams to the appropriate functional unit or program addressed; it also isolates the upper layers from the different technologies that are making the connections

NOTE Network Protocols such as PPP (Point to Point Protocol), IPv6, IPX, ROHC (Robust Header Compression), and others that may be needed operate in this layer. The Network Layer implements the functionality of Global multicast, RSVP (Resource Reservation Protocol), diffserv (differentiated service), NEMO (Network Mobility), IPsec (IP Security), IP Firewall, Static Routing, Dynamic Routing Protocol NDP (Network Discovery Protocol), DHCP (Dynamic Host Configuration Protocol), and SLAAC (Stateless Address Auto-Configuration). The network Management Entity responds to commands from the CALM Management Entity to modify the routing table of the resident device so that data grams from the managed application will flow to the desired destination.

process residing in the ITS-S facilities layer acting as source or destination of FNTP NPDUs

the PDRM instruction type specific elements; elements that are particular to the PDRM instruction type

NOTE The instruction types are Data Capture, Threshold and Delta.

software residing in OBE and/or WAE that manages installation, uninstallation and modification of resident applications

logical entity in a CI that is managing priority queues

Information about state of ITS station

characteristic of systems that support information transmission rates greater than the primary rate (i.e. consistent with “broadband” as defined in Recommendation ITU-R F.1399)

wireless broadband system including communication between user terminals and wireless access points in which the locations of the user terminals and the wireless access points are stationary (i.e. consistent with “fixed wireless access” as defined in Recommendation ITU-R F.1399)

table in an AME that stores management related information for resident applications

technology employed in a communication interface to access a specific medium

node comprised of a set of functionalities in an ITS-S unit that is connected to the ITS station internal network or comprises an entire ITS-S unit

ITS-S entity that has an ITS-S communication need to be fulfilled

software running in a CALM host, or optionally in a CALM router, providing a service to the end user

wireless communications network which supports 'public services' such as cellular telephony, mobile wireless broadband and satellite systems

logical entity in a CI that is associated with a peer station

all OSI communication protocol layers of a CALM medium that are below the CALM network layer

NOTE This also includes CAL.

abstract entity representing a managed processing and memory environment that provides protection from code and data that has not been determined to meet established security requirements

ITS-S protocol layer in the ITS station reference architecture containing the OSI session, presentation and application layer protocols

NOTE 1 to entry Within the US, the NTCIP standards call the facilities layer the “application layer”. However, as this term is easily confused with both the OSI application layer and the application entity, the term should be avoided and qualified when used (e.g. OSI application layer).

one of several data elements that are included in all PDRMs

equipment installed at fixed locations that exchanges information via one or more radio communication interfaces with OBE and possibly other WAE, and which may have connection to a wide-area network

probe data sender from a vehicle to a probe data collector in a probe vehicle system

installer that is used for the application management (AM) conformance test

entity used to verify that installation, uninstallation or modification of an application by an installer in OBE or WAE was performed successfully

NOTE This entity may reside within the installer entity.

land-side activity which receives collected probe data from probe collection and processes it

NOTE Probe processing does not receive any information from probe collection that identifies the vehicle or driver.

a message containing of one or more PDRM instructions within a message structure

structured collation of data elements suitable to be delivered to the onboard communication device for transmission to a land-based centre

NOTE It is emphasized that a probe message should not contain any information that identifies the particular vehicle from which it originated or any of the vehicle’s occupants, directly or indirectly. In delivering a probe message to be transmitted by the onboard communication device, the onboard data collection system will request that the message be packaged and transmitted without any vehicle or occupant identifying information.