hash stringlengths 32 32 | doc_id stringlengths 7 13 | section stringlengths 3 121 | content stringlengths 0 2.2M |
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dffd2716e833c86a27c24ff378d6f55d | 103 916 | 5.4.3.2 Interface to GeoNetworking/BTP stack | If the GeoNetworking/BTP protocol stack is used, and GeoNetworking is used as the network layer, the PCI being passed from PAS to GeoNetworking/BTP stack shall comply with Table 5 in clause 6.6.2. ETSI ETSI TS 103 916 V2.1.1 (2024-01) 21 |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 5.4.3.3 Interface to the IPv6 stack and the combined IPv6/GeoNetworking stack | If the PAS uses the IPv6 stack or the combined IPv6/GeoNetworking stack for POIM-PA dissemination, ETSI TS 103 836-6-1 [8] shall be applied. NOTE 1: The specification of the interface between the PAS and the IPv6 stack is out of the scope of the present document. NOTE 2: If IP-based transport is used to transfer the fa... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 5.4.4 Interface to the ITS-S management plan (IF-Mng) | The PAS of an originating ITS-S obtains configuration parameters and other control information from the Management Information Base (MIB) located in the management plan via the IF Mng interface, as depicted in Figure 6. |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 5.4.5 Interface to the ITS-S security functions (IF-Sec) | The PAS may exchange primitives with the Security entity of the ITS-S using the IF Sec interface provided by the Security entity as depicted in Figure 6. As POIM-PA are originated by static ITS-S located in a central station or in a parking, the ITS-S ID does not need to be changed. If the receiving ITS-S PAS detects a... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 5.5 PAS Operational requirements | |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 5.5.1 Functional Requirements Basic Service Management | The PAS is managed in cooperation between the PAS provider (Roadside equipment or a central system) and PAS users of the service which can be vehicles controlled by human (SAE levels 0 to 3) or which can be fully automated vehicles (SAE level 4 and 5) or motorized VRUs searching for a dedicated parking. The PAS is trig... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 5.5.2 Minimum Performance Requirements | The PAS provides real time information relatively to the availability of the main and related services proposed by a parking manager. Then, the minimum performance requirements are related to the quality of the supplied information in terms of its reality, so avoiding false positive and false negative information as we... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 6 POIM-PA dissemination | |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 6.1 Introduction | Parking Availability Messages (POIMs-PA) are composed of containers (mandatory and optional) which transport information (data elements) which are considered necessary for the receiving ITS-S to select an appropriate parking and act (e.g. reservation) to secure a parking space. POIMs-PA transmission and reception are a... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 6.2 POIM-PA transmission method | The POIM-PA transmission method is depending on: • The locally available communication profiles which are discovered by the communication management. • The preferred communication profile(s) selected by the application. If several communication profiles are selected by the application a preference order can be provided... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 6.3 Frequency/Periodicity range of POIM-PAs | The frequency/periodicity of the POIM-PA is only relevant for broadcast mode. It shall be programmed between a periodicity to 1 to 10 seconds (between 0,1 to 1 hertz of Frequency). Then T GenPoim-pa is limited to T GenPoim-paMin ≤ T GenPam ≤ T GenPoim-paMax. With: T GenPoim-paMin = 1 second and T GenPoim-paMax = 10 sec... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 6.4 Transmitting POIM-PAs | The POIM-PA is then transmitted by the Communication profile protocol stack which has been selected. An ad-hoc local area network communication profile identifies automatically the ITS channel to be used according to the selected technology (ITS-G5, LTE-V2X) and the type of service requesting the transmission (e.g. mob... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 6.5 Triggering conditions | The POIM-PA transmission is triggered by the Parking Management Application according to the communication profile and its communication mode capabilities which have been selected. 6.6 Multi-Channel Operation (MCO), congestion control and service announcement |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 6.6.1 Introduction | Multi-Channel Operation (MCO) is a cross-layer functionality that enables the use of multiple radio channels in Cooperative Intelligent Transport Systems (C-ITS). The Facilities layer functionalities and its interface are specified in ETSI TS 103 141 [2]. MCO service needs to exchange information with the ITS applicati... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 6.6.2 Interface to MCO_FAC | If the ITS-S supports MCO, the PAS shall exchange information with the MOC_FAC via the interface IF.MCO specified in ETSI TS 103 141 [2] which is a facility layer function accessible via IF.OFa interface (see Figure 6). This interface can be used to configure the default MCO settings for generated POIM-PAs and can also... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 6.7 Security constraints | |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 6.7.1 Introduction | 6. |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 7.1 Introduction | If an ITS station uses the trust model according to ETSI TS 102 940 [7] and ITS certificates according to ETSI TS 103 097 [5], clause 6.7.2 shall apply. For other scenarios, the trust model, and the mechanism for trust enforcement for inter-connected ITS stations can be agreed among participating actors. |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 6.7.2 Service Specific Permission (SSP) | POIM-PAs shall be signed using private keys associated to Authorization Tickets that contain SSPs of type BitmapSsp as specified in ETSI TS 103 097 [5]. The SSP for the POIM-PA shall be of CHOICE BitmapSsp. It is defined by a variable number of octets and shall correspond to the octet scheme illustrated in Figure 7. Th... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 6.7.3 General priority constraints | If the GeoNetworking/BTP stack is used, the priority constraint shall be as given by the Traffic Class as specified in ETSI TS 103 836-4-1 [4]. |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 7 POIM-PA Format Specification | 7.1 Introduction POI Messages for Parking Availability (POIMs-PA) belong to the POIM class and as such shall respect the POIM PDU generic structure which is described in clause A.1 of the present document. A POIM-PA is composed of containers (mandatory and optional) which transport information (data elements) being con... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 7.2 General Structure of a POIM-PA PDU | The general structure of the POIM-PA PDU is provided in Figure 8. The PAS is a POI which starts with the POIM PDU header and is composed of several mandatory and optional containers. ETSI ETSI TS 103 916 V2.1.1 (2024-01) 28 Figure 8: General structure of the POIM-PA PDU The Management container is a generic POIM contai... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 7.3 ITS PDU header | The ITS PDU header is a common POIM header that includes the information of the protocol version (1 for this initial version), the message type (3 for POIs) and the ITS-S ID of the originating ITS-S. This container is part of the POIM PDU Information Block and the ASN.1 coding of the ITS PDU header is provided in annex... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 7.4 POIM PDU payload | The POIM PDU payload is constituted of POI Information Blocks which are imported from the CDD relatively to the considered POI type. A list of wrapped POI information blocks, each with its type identifier is then provided. Each POI Information Block contains the block type and the block content. The first POI informati... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 7.5 POIM-PA PDU Containers | |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 7.5.1 Management container | This container is generic to all POI types and contains: • The service provider Identifier. • The block Identification number (Identifier 2B). • The Timestamp (ITS timestamp). • The linked Ivims (optional). • The linked Mapems (optional). The ASN.1 coding of the management information is provided in annex A. |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 7.5.2 GeneralParkingPlace container | The general parking place container contains the following information: • The geographical position of the parking place (mandatory). • The name of the parking place (mandatory). • The opening periods (optional). • The address of the parking place (optional). • The phone number of the parking place (optional). • The WE... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 7.5.3 ParkingStatus container | This container provides aggregated dynamic information relatively to the status of the parking facility. It includes the following information: • Current status of the parking place: - This information contains DFs and DEs which provide the overall status of the parking place: Parking place status (open or closed). •... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 7.5.4 ParkingSupplyCapabilities container | This container mainly focuses on parking spaces which enable the parking of one vehicle (in some cases multiple vehicles) and may provide supplementary facilities such as the location of equipment (e.g. the provisioning of electrical energy, security equipment, etc.) or services (e.g. access to disabled people, loading... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 7.5.5 RelatedPOIs container | This optional container is generic to all POI types and contains a list of RelatedPoiInfoBlock and represents a common container to refer to other POI Information Blocks. Each Related POI Information Block contains the following information: • poiInfoBlockType: The type of Related POI Information Blocks. • poiInfoBlock... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 7.6 POIM-PA formatting and decoding | The POIM-PA format shall be as specified in clause A.3 of the present document. DEs and DFs that are not defined in the present document shall be imported from the ETSI Common Data Dictionary ETSI TS 102 894-2 [1] as specified in annex A. Unaligned Packet Encoding Rules (PER) as defined in Recommendation ITU-T X.691/IS... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 8 Protocol operation of the PAS | |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 8.1 Introduction | The PAS is under the control of one Parking Management application which is distributed in an originating ITS-S and in a receiving ITS-S. Several operation protocols are available according to the communication profile being used at the level of ITS-Ss: • Continuous broadcast of POIMs-PA which is available at the level... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 8.2 Originating ITS-S operation | |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 8.2.1 Protocol data setting rules | At the originating ITS-S level, the communication protocol and its associated data are selected at ITS-S initialization time (switching-on) and may be adjusted according to the local availability evolutions of the ITS-S communication capabilities. When several communication capabilities (e.g. communication profiles) ar... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 8.2.2 Protocol data | Relevant protocol data are provided at initialization time and before a change of communication profile. If a change of communication profile involves a change in the security profile or/and in the application profile, the security protocol data or/and application protocol data need also to be adjusted. General protoco... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 8.2.3 General protocol operation | Figure 9 provides an overview of the communication protocol operation at the level of an originating ITS-S. Figure 9: General protocol operation at level of the Originating ITS-S ETSI ETSI TS 103 916 V2.1.1 (2024-01) 33 |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 8.3 Receiving ITS-S operation | |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 8.3.1 Protocol data setting rules | At the receiving ITS-S level, the communication protocol and its associated data are selected at ITS-S initialization time (switching-on) and may be adjusted according to the local availability evolutions of the ITS-S communication capabilities. ITS-S receive POIMs-PA which are broadcasted or addressed to it. Upon rece... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 8.3.2 General protocol operation | Figure 10 provides an overview of the communication protocol operation at the level of a receiving ITS-S. Figure 10: General protocol operation at the level of a receiving ITS-S |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 8.3.3 Exceptions handling | Exceptions can be originating from the communication system or the security system. Other parts of the ITS may also lead to some exceptions if defectives. Communication exceptions: Communication with the Parking Management Application requires the presence at the level of the receiving ITS-S of at least one relevant st... |
dffd2716e833c86a27c24ff378d6f55d | 103 916 | 8.4 PAS protocol flowcharts | The PAS flow chart is represented in Figure 11. Figure 11: PAS flow chart overview The 2 communication modes are considered: • Continuous Broadcast: - In this communication mode a broadcasting ITS-S (e.g. a RoadSide Equipment (RSE)) is continuously broadcasting POIMs-PA at a predefined frequency. Vehicles ITS-Ss being ... |
3859c948dbd791391f189d84983dab0e | 103 909 | 1 Scope | The present document describes test techniques that can be used to determine the performance of narrow band power line communications technologies using any modulation technique in the frequency range 9 kHz to 500 kHz. |
3859c948dbd791391f189d84983dab0e | 103 909 | 2 References | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which a... |
3859c948dbd791391f189d84983dab0e | 103 909 | 2.1 Normative references | The following referenced documents are necessary for the application of the present document. [1] CISPR 11:2009+A1:2010: "Industrial, scientific and medical equipment - Radio-frequency disturbance characteristics - Limits and methods of measurement". [2] CISPR 15:2009: "Limits and methods of measurement of radio distur... |
3859c948dbd791391f189d84983dab0e | 103 909 | 2.2 Informative references | The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. [i.1] TS 103 908 (V1.1.1): "PowerLine Telecommunications (PLT); BPSK Narrow Band Power Line Channel for Smart Metering Applications [CEN EN 14908-3:2006, mo... |
3859c948dbd791391f189d84983dab0e | 103 909 | 3 Abbreviations | For the purposes of the present document, the following abbreviations apply: AC Alternating Current ADC Amperes Direct Current BPSK Binary Phase Shift Keying CISPR Committee International Special Radio Perturbation CRC Cyclic Redundancy Rate DBPSK Differential Binary Phase Shift Keying DCR Direct Current Resistance DQP... |
3859c948dbd791391f189d84983dab0e | 103 909 | 4 Overview | |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.1 Overview | The present document defines a set of standardized test methods for characterizing power line communications (PLC) technologies, particularly within the frequency range of 9 kHz to 500 kHz. In a typical power line environment, many devices are connected to the AC mains. An examination of real-world AC mains environment... |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.1.1 Unimpaired Testing | Power line communications environments with no noise impairments represent baseline conditions for defining PLC testing specifications. It is important to measure a power line device in an unimpaired environment to provide comparison measurements to help understand how noise sources impair communications. |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.1.2 Tonal Noise Testing | Tonal noise sources are extremely common on the AC mains. They are most frequently found in the form of off-line AC switch-mode power converters. The vast majority of modern electronic products use this type of power converter. Examples include personal computers, portable electronic device chargers, energy-efficient l... |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.1.3 Periodic Impulse Noise Testing | Periodic impulse noise is very common on the AC mains. It can be caused by a number of devices, but one of the most common sources is a triac-controlled lamp dimmer. This type of device leaves its load disconnected from the AC mains for some fraction of each half AC cycle, and then connects the load to the mains for th... |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.1.4 Random Impulse Noise Testing | Random impulse noise is introduced onto the AC mains from a variety of sources. Series-wound AC motors are a very common source of this type of noise. These motors have brushes that arc when passing between commutator segments. The arcing produces impulses on the AC mains that are much smaller in amplitude than can be ... |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.1.5 Intentional Communicator Noise Testing | In addition to noise on the AC mains from unintentional sources, there is a significant population of intentional communicators on the mains. A very common example of these types of devices is power line intercoms, or baby monitors. In large parts of the world, these devices use carrier frequencies in the range of 160 ... |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.2 Defining the Test Metrics | The testing methodology described in the present document defines test metrics at two layers of the seven-layer OSI computer networking model: • Link budget and effective data rate for the physical layer (PHY layer) - called the LBPHY and DRPKT. • Link budget and effective data rate for the data-link layer - called the... |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.2.1 Defining the Link Budget | The link budget is a measure of how much signal attenuation (in dB) can be present between a transmitter and receiver such that a specified level of successful message delivery is achieved. The link-budget test suite specified in the present document includes each interference category. It is the goal of this test suit... |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.2.2 Defining the Data Rate | In general, a data rate is a measure of a number of bits received within a specified time interval. Because there is a tendency for higher data rates to provide lesser link budget performance (and for larger link budgets to provide lower data rates), each measure of link budget shall be associated with a relevant data ... |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.2.3 Reporting Test Results | For production devices, link-budget and data rate test results are only meaningful if the units being tested comply with relevant regional emissions regulations. Thus, conducted emissions testing shall be performed on all devices under test in accordance with the appropriate standards, and the results shall be document... |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.3 Test Setup | The test setup for measuring the power line communications link budget and data rate is shown in figure 1. The test setup uses industry-standard equipment that is widely available, can be easily maintained, and easily calibrated. Table 4 lists the components for the test setup shown in figure 1. Note that an additional... |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.4 Calibrating the Attenuation | To overcome issues with measuring high levels of attenuation when using a modulated power line signaling waveform, the test setup uses a second waveform source, waveform generator 2, for attenuation measurement. The value of attenuation can be calibrated by setting 20 dB of attenuation using a transmitted waveform from... |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.5 Measuring the Attenuation | To measure attenuation between the transmitter and receiver under test: • Inject a tone with waveform generator 2. • Measure the level of the tone at the measuring receiver. • Adjust for the calibration value determined in clause 4.4. The transmitter shall not be transmitting while measuring attenuation. With waveform ... |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.6 Measuring Link Budgets and Data Rates | The following clauses define PLC link budgets and data rates in the presence of various noise sources. Clause 5 describes the specifications for each of the noise source types. Clause 6 describes the background for defining each of the noise waveform specifications. ETSI ETSI TS 103 909 V1.1.1 (2012-12) 18 |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.6.1 Unimpaired Measurement | The unimpaired link budget or data rate between a transmitter and receiver shall be measured using the test setup of figure 1, with no impairment present. For this test, set waveform generator 1 such that its 50 Ω source impedance is still present but such that it otherwise introduces no impairment to communication. Se... |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.6.2 Tonal Noise Measurement | To establish the link budget or data rate between a transmitter and receiver in the presence of tonal noise, the link budget or data rate with each of 25 specified tonal noise waveforms that span a range of interfering fundamental frequencies with harmonics included shall be measured. The final tonal-noise link budget ... |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.6.3 Periodic Impulse Noise Measurement | The periodic impulse noise link budget or data rate between a transmitter and receiver shall be measured with switch SW1 of figure 1 closed and with no impairment from waveform generator 1. For waveform generator 1 to preserve its 50 Ω terminal impedance without adding any impairment to the receive branch, set it to pr... |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.6.4 Random Impulse Noise Measurement | The link budget or data rate between a transmitter and receiver shall be measured using the test setup of figure 1 while waveform generator 1 produces the random impulse noise waveform specified in clause 5.3. The random impulse noise link budget is defined as the greatest level of attenuation that results in ≤ 5 % MER... |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.6.5 Intentional Communicator Measurement | The intentional communicator link budgets or data rates between a transmitter and receiver shall be measured using the test setup of figure 1. This test is performed with several different impairment waveforms loaded into waveform generator 1, as specified in clause 5.4. The individual intentional communicator link bud... |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.7 Composite Measurement Values | The composite link-budget or data-rate measurement for a unit under test (UUT) is defined to be the average of the five individual measurement values: • Unimpaired measurement. • Tonal noise measurement. • Periodic impulse noise measurement. • Random impulse noise measurement. • Intentional communicator measurement. Be... |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.7.1 Composite Link Budget | A device should have a composite link budget high enough to ensure reliable power line communications (in at least one of its operating modes). Higher values of composite link budget might be of value to an end user to the extent that they lower the cost of installation and operation (for example, requiring fewer servi... |
3859c948dbd791391f189d84983dab0e | 103 909 | 4.7.2 Composite Data Rate | A device should have a data rate that matches the users' data communications requirements. Unlike the composite link-budget value, which measures communication reliability between devices, a data-link layer data rate value represents the link-layer throughput that the units under test can support. |
3859c948dbd791391f189d84983dab0e | 103 909 | 5 Noise Waveform Specifications | This clause describes the waveform specifications for the tonal, periodic impulse, random impulse, and intentional communicator waveforms. |
3859c948dbd791391f189d84983dab0e | 103 909 | 5.1 Tonal Noise Waveform Specifications | This clause describes the specifications for the frequency and amplitude each of the 25 tonal noise waveforms. See clause 6.1 for background information about the selection of these particular waveforms. For each waveform, table 5 lists the frequency, amplitude, and modulation settings for waveform generator. The value... |
3859c948dbd791391f189d84983dab0e | 103 909 | 5.2 Periodic Impulse Noise Waveform Specifications | The waveform specified for this test is defined by: ( ) bt impulse e ft A V − = π 2 sin for t ≥ 0 0 = impulse V for t < 0 where: A = 42 V f = 190 kHz b = 3,3 × 105 This waveform is specified to occur once each half cycle of the AC mains power frequency, with an arbitrary phase offset from the zero crossing point. The p... |
3859c948dbd791391f189d84983dab0e | 103 909 | 5.3 Random Impulse Noise Waveform Specifications | This clause describes the specifications for the random impulse noise waveform. See clause 6.3 for background information about the selection of this waveform. For this waveform, set the frequency of the waveform generator to 120 Hz, and set the amplitude for the generator to 4,4 Vp-p. See annex B for a list of samples... |
3859c948dbd791391f189d84983dab0e | 103 909 | 5.4 Intentional Communicator Waveform Specifications | Three power line intercom/baby monitor waveforms and a standards-based intentional communicator are specified as impairments for intentional communicators. The three intercom/baby monitor waveforms represent the range of carrier frequencies used for these types of devices. See clause 6.4 for background information abou... |
3859c948dbd791391f189d84983dab0e | 103 909 | 6 Defining the Test Parameters | This clause describes the test parameters for the tonal, periodic impulse, random impulse, and intentional communicator waveforms. This clause provides background information to explain how the waveform specifications described in clause 5 were derived. |
3859c948dbd791391f189d84983dab0e | 103 909 | 6.1 Defining Tonal Noise | Tonal noise sources are extremely common on the AC mains. They are most frequently found in the form of off-line AC switch-mode power converters. The vast majority of modern electronic products use this type of power converter. Examples include personal computers, portable electronic device chargers, energy-efficient l... |
3859c948dbd791391f189d84983dab0e | 103 909 | 6.2 Defining Periodic Impulse Noise | Periodic impulse noise is very common on the AC mains. It can be caused by a number of devices, but one of the most common sources is a triac-controlled lamp dimmer. This type of device leaves its load disconnected from the AC mains for some fraction of each half AC cycle, and then connects the load to the mains for th... |
3859c948dbd791391f189d84983dab0e | 103 909 | 6.3 Defining Random Impulse Noise | Random impulse noise is introduced onto the AC mains from a wide variety of sources. Series-wound AC motors are a very common source of this type of noise. These motors have brushes that arc when passing between commutator segments. The arcing produces impulses on the AC mains that are much smaller in amplitude than ca... |
3859c948dbd791391f189d84983dab0e | 103 909 | 6.4 Defining Intentional Communicator Noise | In addition to noise on the AC mains from unintentional sources, there is a significant population of intentional communicators on the mains. A very common example of these types of devices is power line intercoms, or baby monitors. In large parts of the world, these devices use carrier frequencies in the range of 160 ... |
3859c948dbd791391f189d84983dab0e | 103 909 | 7.1 Verifying Test Setup Isolation | Any instantiation of the test setup shown in figure 1 shall be verified to have sufficient signal attenuation from the transmitter location, through the V-Network to the AC mains, through the other V-Network, to the receiver location. This verification is necessary to ensure that the attenuation between the transmitter... |
62f05430a25533720e979f6b8cad74d8 | 103 908 | 1 Scope | The present document contains all the information necessary to facilitate the exchange of data and control information over the power line medium between devices that share the same LV transformer(s) within a utility's electricity network. Certain aspects of the present document are defined in other documents. These do... |
62f05430a25533720e979f6b8cad74d8 | 103 908 | 2 References | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which a... |
62f05430a25533720e979f6b8cad74d8 | 103 908 | 2.1 Normative references | The following referenced documents are necessary for the application of the present document. [1] CEN EN 14908-3:2006: "Open Data Communication in Building Automation, Controls and Building Management - Control Network Protocol - Part 3: Power Line Channel Specification". [2] CENELEC EN 50065-1:2011: "Signalling on low... |
62f05430a25533720e979f6b8cad74d8 | 103 908 | 2.2 Informative references | The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. [i.1] CEN EN 14908-1: "Open Data Communication in Building Automation, Controls and Building Management - Control Network Protocol - Part 1: Protocol Stack"... |
62f05430a25533720e979f6b8cad74d8 | 103 908 | 3 Abbreviations | For the purposes of the present document, the following abbreviations apply: AM Amplitude Modulation BPSK Binary Phase Shift Keying CNP Control Network Protocol LV Low Voltage NRZ Non Return to Zero PER Packet Error Rate ETSI ETSI TS 103 908 V1.1.1 (2011-10) 6 PL Power Line PPM Parts Per Million RLC Resistor, Inductor,... |
0e828fd7cc36a33fe18cfc0253f54ec3 | 103 938 | 1 Scope | The present document is the baseline for the Release 2 specification defining the functional behaviour associated with a Local Dynamic Map (LDM) for usage in an ITS Station Unit (ITS-SU). |
0e828fd7cc36a33fe18cfc0253f54ec3 | 103 938 | 2 References | |
0e828fd7cc36a33fe18cfc0253f54ec3 | 103 938 | 2.1 Normative references | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which a... |
0e828fd7cc36a33fe18cfc0253f54ec3 | 103 938 | 2.2 Informative references | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. NOTE: While any hyperlinks i... |
0e828fd7cc36a33fe18cfc0253f54ec3 | 103 938 | 3 Definition of terms, symbols and abbreviations | |
0e828fd7cc36a33fe18cfc0253f54ec3 | 103 938 | 3.1 Terms | For the purposes of the present document, the terms given in ETSI EN 302 895 [1] apply. |
0e828fd7cc36a33fe18cfc0253f54ec3 | 103 938 | 3.2 Symbols | For the purposes of the present document, the symbols given in ETSI EN 302 895 [1] apply. |
0e828fd7cc36a33fe18cfc0253f54ec3 | 103 938 | 3.3 Abbreviations | For the purposes of the present document, the abbreviations given in ETSI EN 302 895 [1] apply. ETSI ETSI TS 103 938 V2.0.0 (2023-02) 6 4 Use of references and numbering in Release 2 specifications TC ITS specifications are developed in Releases and each Release needs to be self-consistent. The following rules apply: •... |
0e828fd7cc36a33fe18cfc0253f54ec3 | 103 938 | 5 Normative Provisions | ETSI EN 302 895 [1] shall apply altogether. ETSI ETSI TS 103 938 V2.0.0 (2023-02) 7 History Document history V2.0.0 February 2023 Publication |
ebcf585fa5170c3654956a3bcb309d45 | 103 933 | 1 Scope | The present document will briefly introduce Fibre-To-The-Room (FTTR) application in home and business building, FTTR system architecture and general requirements of the fibre infrastructure, analyse and evaluate energy consumption, environmental impacts and security, provide guidance for FTTR system design and network ... |
ebcf585fa5170c3654956a3bcb309d45 | 103 933 | 2 References | |
ebcf585fa5170c3654956a3bcb309d45 | 103 933 | 2.1 Normative references | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which a... |
ebcf585fa5170c3654956a3bcb309d45 | 103 933 | 2.2 Informative references | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. NOTE: While any hyperlinks i... |
ebcf585fa5170c3654956a3bcb309d45 | 103 933 | 3 Definition of terms, symbols and abbreviations |
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