35.100.10 - Physical layer
ICS 35.100.10 Details
Physical layer
Bitubertragungsschicht (Pysical layer)
Couche physique
Fizični sloj
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This document describes communication protocols for the physical and data link layer of shared communication, which is a wireless distributed communication network for units related with UAs in level II. Physical layer includes frame structure, encoding procedure, physical layer procedure and coexistence operations. Data link layer includes channel and slot, resource management, broadcast and exchange of data, synchronization, security, and interface with upper layer and other communication layers.
- Standard65 pagesEnglish languagesale 15% off
This document specifies communication protocols for the physical and data link layer for control communication, which is wireless distributed communication network for units related with unmanned aircrafts (UAs) in level II. This document describes control communication, which is one-to-one communication between a UA and a controller.
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This document specifies communication protocols for the physical and data link layer of video communication, which is a wireless distributed communication network for units related with unmanned aircrafts (UAs) in level II. This document describes video communication, which is one-to-one communication that transmits video from a UA to a video receiver. For the specific use of video communication, video can be transmitted from a UA to multiple receivers.
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The present document describes the next generation transmission system for digital hybrid (combination of terrestrial
with satellite transmissions) MIMO broadcasting to handheld terminals making use of multi-aerial structures at the
transmitting and receiving ends. It specifies the relationship of the hybrid MIMO profile physical layer part to the
physical layer part of the other three profiles, namely the base profile ETSI EN 303 105-1 [1], the MIMO profile
ETSI EN 303 105-2 [2] and the hybrid profile ETSI EN 303 105-3 [3], from the input streams to the transmitted signal.
This transmission system is intended for carrying Transport Streams or generic data streams feeding linear and nonlinear applications like television, radio and data services. DVB-NGH terminals might also process DVB-T2-lite
signals.
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The present document is one of the parts of the specification of the Digital Enhanced Cordless Telecommunications
(DECT) Common Interface (CI).
The present document specifies the physical channel arrangements. DECT physical channels are radio communication
paths between two radio end points. A radio end point is either part of the fixed infrastructure, a privately owned Fixed
Part (FP), typically a base station, or a Portable Part (PP), typically a handset. The assignment of one or more particular
physical channels to a call is the task of higher layers.
The Physical Layer (PHL) interfaces with the Medium Access Control (MAC) layer, and with the Lower Layer
Management Entity (LLME). On the other side of the PHL is the radio transmission medium which has to be shared
extensively with other DECT users and a wide variety of other radio services. The tasks of the PHL can be grouped into
five categories:
a) to modulate and demodulate radio carriers with a bit stream of a defined rate to create a radio frequency
channel;
b) to acquire and maintain bit and slot synchronization between transmitters and receivers;
c) to transmit or receive a defined number of bits at a requested time and on a particular frequency;
d) to add and remove the synchronization field and the Z-field used for rear end collision detection;
e) to observe the radio environment to report signal strengths.
The present document includes New Generation DECT, a further development of the DECT standard introducing
wideband speech, improved data services, new slot types and other technical enhancements.
- Standard68 pagesEnglish languagesale 15% off
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The present document describes the next generation transmission system for digital terrestrial and hybrid (combination
of terrestrial with satellite transmissions) broadcasting to handheld terminals. It specifies the entire physical layer part
from the input streams to the transmitted signal. This transmission system is intended for carrying Transport Streams or
generic data streams feeding linear and non-linear applications like television, radio and data services. DVB-NGH
terminals might also process DVB-T2-lite signals.
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The present document describes the next generation transmission system for digital terrestrial MIMO broadcasting to
handheld terminals making use of multi-aerial structures at the transmitting and receiving ends. It specifies the
differences of the MIMO Profile physical layer part to the physical layer part of the Base Profile ETSI
EN 303 105-1 [1] - from the input streams to the transmitted signals. This transmission system is intended for carrying
Transport Streams or generic data streams feeding linear and non-linear applications like television, radio and data
services. DVB-NGH terminals might also process DVB-T2-lite signals.
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The present document describes the next generation transmission system for digital hybrid (combination of terrestrial
with satellite transmissions) broadcasting to handheld terminals. It specifies the differences of the Hybrid Profile
physical layer part to the physical layer part of the Base Profile ETSI EN 303 105-1 [1] from the input streams to the
transmitted signals. This transmission system is intended for carrying Transport Streams or generic data streams feeding
linear and non-linear applications like television, radio and data services. DVB-NGH terminals might also process
DVB-T2-lite signals.
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This document specifies the close capacitive coupling communication physical layer (CCCC PHY) for full duplex and broadcast communication in time slots on frequency division multiplex channels. NOTE An implementation for small size and low power devices is provided in Annex B.
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This document defines the mandatory and optional requirements for the medium specific physical and data link layer of power line Class 1 PL110. Data link layer interface and general definitions, which are medium independent, are given in EN 50090-4-1.
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IEC 62943:2017 aims at establishing a unified standard concerning the lower communication layer common to multimedia applications, and does not deal with the upper communication layer which depends upon individual applications. This document specifies a unidirectional visible light communication protocol using visible light, named "visible light beacon system for multimedia applications".
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This European Standard defines the mandatory and optional requirements for the medium specific physical and data link layer for HBES Class 1 Twisted Pair TP1. Data link layer interface and general definitions, which are media independent, are given in EN 50090 4 2.
- Standard48 pagesEnglish languagesale 10% offe-Library read for1 day
The present document provides the ETSI endorsement of ANSI/SCTE Standard 220-1 [1].
ANSI/SCTE Standard 220-1 is part of a series of specifications that defines the fourth generation of high-speed dataover-
cable systems, commonly referred to as the DOCSIS 3.1 specifications. The standard was developed for the
benefit of the cable industry, and includes contributions by operators and vendors from North and South America,
Europe and Asia.
This generation of the DOCSIS specifications builds upon the previous generations of DOCSIS specifications
(commonly referred to as the DOCSIS 3.0 and earlier specifications), leveraging the existing Media Access Control
(MAC) and Physical (PHY) layers, but with the addition of a new PHY layer designed to improve spectral efficiency
and provide better scaling for larger bandwidths (and appropriate updates to the MAC and management layers to
support the new PHY layer). It includes backward compatibility for the existing PHY layers in order to enable a
seamless migration to the new technology.
There are differences in the cable spectrum planning practices adopted for different networks in the world. For the new
PHY layer defined in the present document, there is flexibility to deploy the technology in any spectrum plan; therefore,
no special accommodation for different regions of the world is specified for this new PHY layer.
However, due to the inclusion of the DOCSIS 3.0 PHY layers for backward compatibility purposes, there is still a need
for different region-specific physical layer technologies. Therefore, three options for physical layer technologies are
included in the present document. One technology option is based on the downstream channel identification plan that is
deployed in North America using 6 MHz spacing. The second technology option is based on the corresponding
European multi-program television distribution. The third technology option is based on the corresponding Chinese
multi-program television distribution. All three options have the same status, notwithstanding that the document
structure does not reflect this equal priority. The first of these options is defined in clauses 5 and 6 of [1], whereas the
second is defined by replacing the content of those clauses with the content of Annex C of [1]. The third is defined by
replacing the content of those clauses with the content of Annex D of [1]. Correspondingly, [14] and [4] apply only to
the first option, and [5] applies to the second and third. Compliance with the present document means compliance with
one of these implementations, but not with all three. It is not expected that equipment built to one option interoperates
with equipment built to the other.
Compliance with frequency planning and EMC requirements is not covered by the present document and remains the
operators' responsibility. In this respect, [11] and [12] are relevant to the USA; [3] and [i.2] to Canada; [i.4], [6], [7],
[8], [9] and [10] are relevant to the European Union; [13] and [i.1] are relevant to China.
ANSI/SCTE Standard 220-1 defines the interface for the physical layer, and corresponds to the CableLabs
specification [i.3].
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The present document is one of the parts of the specification of the Digital Enhanced Cordless Telecommunications (DECT) Common Interface (CI). The present document specifies the physical channel arrangements. DECT physical channels are radio communication paths between two radio end points. A radio end point is either part of the fixed infrastructure, a privately owned Fixed Part (FP), typically a base station, or a Portable Part (PP), typically a handset. The assignment of one or more particular physical channels to a call is the task of higher layers. The Physical Layer (PHL) interfaces with the Medium Access Control (MAC) layer, and with the Lower Layer Management Entity (LLME). On the other side of the PHL is the radio transmission medium which has to be shared extensively with other DECT users and a wide variety of other radio services. The tasks of the PHL can be grouped into five categories:
a) to modulate and demodulate radio carriers with a bit stream of a defined rate to create a radio frequency channel;
b) to acquire and maintain bit and slot synchronization between transmitters and receivers;
c) to transmit or receive a defined number of bits at a requested time and on a particular frequency;
d) to add and remove the synchronization field and the Z-field used for rear end collision detection;
e) to observe the radio environment to report signal strengths.
The present document includes New Generation DECT, a further development of the DECT standard introducing wideband speech, improved data services, new slot types and other technical enhancements.
- Standard66 pagesEnglish languagesale 10% offe-Library read for1 day
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This European Standard specifies the requirements of parameters for the physical and the link layer for systems using radio to read remote meters. The primary focus is to use the Short Range Device (SRD) unlicensed telemetry bands. The standard encompasses systems for walk-by, drive-by and fixed installations. As a broad definition, this European Standard can be applied to various application layers.
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This European Standard specifies the requirements of parameters for the physical and the link layer for systems using radio to read remote meters. The primary focus is to use the Short Range Device (SRD) unlicensed telemetry bands. The standard encompasses systems for walk-by, drive-by and fixed installations. As a broad definition, this European Standard can be applied to various application layers.
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This draft European Standard specifies Transport and Security Services for communication systems for meters and remote reading of meters.
This draft European Standard specifies secure communication capabilities by design and supports the building of a secure system architecture.
This draft European standard is applicable to the protection of consumer data to ensure privacy.
This draft European Standard is intended to be used with the lower layer specifications determined in EN 13757-2, EN 13757-3, EN 13757-4, EN 13757-5 and EN 13757-6.
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This draft European standard is applicable to the physical and link layer parameters of baseband communication over twisted pair (M Bus) for meter communication systems. It is especially applicable to thermal energy meters, heat cost allocators, water meters and gas meters.
NOTE It is usable also for other meters (like electricity meters) and for sensors and actuators. For generic descriptions concerning communication systems for meters and remote reading of meters see EN 13757-1.
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This draft European standard is applicable to the physical and link layer parameters of baseband communication over twisted pair (M Bus) for meter communication systems. It is especially applicable to thermal energy meters, heat cost allocators, water meters and gas meters.
NOTE It is usable also for other meters (like electricity meters) and for sensors and actuators. For generic descriptions concerning communication systems for meters and remote reading of meters see EN 13757-1.
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This draft European Standard specifies Transport and Security Services for communication systems for meters and remote reading of meters.
This draft European Standard specifies secure communication capabilities by design and supports the building of a secure system architecture.
This draft European standard is applicable to the protection of consumer data to ensure privacy.
This draft European Standard is intended to be used with the lower layer specifications determined in EN 13757-2, EN 13757-3, EN 13757-4, EN 13757-5 and EN 13757-6.
- Standard91 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft81 pagesEnglish languagesale 10% offe-Library read for1 day
This International Standard aims at establishing a unified standard concerning the lower
communication layer common to multimedia applications, and does not deal with the upper
communication layer which depends upon individual applications.
This document specifies a unidirectional visible light communication protocol using visible
light, named "visible light beacon system for multimedia applications". This document does
not specify the type of receivers. Dimming can be done by such methods as pulse width
control or amplitude control, but the dimming is out of the scope of this document.
- Standard25 pagesEnglish languagesale 10% offe-Library read for1 day
The present document is one of the parts of the specification of the Digital Enhanced Cordless Telecommunications
(DECT) Common Interface (CI).
The present document specifies the physical channel arrangements. DECT physical channels are radio communication
paths between two radio end points. A radio end point is either part of the fixed infrastructure, a privately owned Fixed
Part (FP), typically a base station, or a Portable Part (PP), typically a handset. The assignment of one or more particular
physical channels to a call is the task of higher layers.
The Physical Layer (PHL) interfaces with the Medium Access Control (MAC) layer, and with the Lower Layer
Management Entity (LLME). On the other side of the PHL is the radio transmission medium which has to be shared
extensively with other DECT users and a wide variety of other radio services. The tasks of the PHL can be grouped into
five categories:
a) to modulate and demodulate radio carriers with a bit stream of a defined rate to create a radio frequency
channel;
b) to acquire and maintain bit and slot synchronization between transmitters and receivers;
c) to transmit or receive a defined number of bits at a requested time and on a particular frequency;
d) to add and remove the synchronization field and the Z-field used for rear end collision detection;
e) to observe the radio environment to report signal strengths.
The present document includes New Generation DECT, a further development of the DECT standard introducing
wideband speech, improved data services, new slot types and other technical enhancements.
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ISO/IEC TR 22512:2017 provides guidance for the implementation of ISO/IEC 17982.
- Technical report6 pagesEnglish languagesale 15% off
This European Standard gives the standardization framework of communication systems applicable to the exchange of data from metering devices to other devices within a mesh network.
This European Standard specifies how to interpret prEN 16836-2:2015 and prEN 16836-3:2015 which give a list of references to the ZigBee documents. This series is applicable to communications systems that involve messages and networking between a meter or multiple meters and other devices in a mesh network, such as in home displays (IHDs) and communications hubs. This European Standard allows routing between devices and also allows channel agility to avoid contention with other networks of the same type, or indeed networks of other types operating in the same frequency bands.
This European Standard is designed to support low power communications for devices such as gas and water meters which can make data from such devices available on the mesh network at any time through a proxy capability within a permanently powered device.
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This European Standard specifies the medium access control/physical layer MAC/PHY and networking layer of a communication protocol for the exchange of data from metering devices to other devices within a mesh network.
The referenced documents in this European Standard contain specifications, interface descriptions, object descriptions, protocols and algorithms pertaining to this protocol standard, the device objects, device profile, the application framework, the network layer, and security services.
They are referenced in their entirety for reasons of backwards compatibility and interoperability with products in the field currently using this technology.
- Standard6 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 62943:2017 aims at establishing a unified standard concerning the lower communication layer common to multimedia applications, and does not deal with the upper communication layer which depends upon individual applications. This document specifies a unidirectional visible light communication protocol using visible light, named "visible light beacon system for multimedia applications".
- Standard45 pagesEnglish and French languagesale 15% off
This European Standard specifies the protocols to use when performing relaying in wireless meter readout networks. This European Standard is an extension to wireless meter readout specified in EN 13757-4. It supports the routing of modes P and Q, and simple single-hop repeating of modes S, T, C, F and N.
The main use of this standard is to support simple retransmission as well as routed wireless networks for the readout of meters.
NOTE Electricity meters are not covered by this standard, as the standardisation of remote readout of electricity meters is a task for IEC/CENELEC.
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This part of this International Standard specifies the physical and data link layer for a high level communication, directly between battery electric vehicles (BEV) or plug-in hybrid electric vehicles (PHEV), and the fixed electrical charging installation (Electric Vehicle Supply Equipment (EVSE)), used in addition to the Basic Signaling, as described in IEC 61851. It covers the overall information exchange between all actors involved in the electrical energy exchange. This International Standard is applicable for (manually) connected conductive charging.
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The present document is one of the parts of the specification of the Digital Enhanced Cordless Telecommunications
(DECT) Common Interface (CI).
The present document specifies the physical channel arrangements. DECT physical channels are radio communication
paths between two radio end points. A radio end point is either part of the fixed infrastructure, a privately owned Fixed
Part (FP), typically a base station, or a Portable Part (PP), typically a handset. The assignment of one or more particular
physical channels to a call is the task of higher layers.
The Physical Layer (PHL) interfaces with the Medium Access Control (MAC) layer, and with the Lower Layer
Management Entity (LLME). On the other side of the PHL is the radio transmission medium which has to be shared
extensively with other DECT users and a wide variety of other radio services. The tasks of the PHL can be grouped into
five categories:
a) to modulate and demodulate radio carriers with a bit stream of a defined rate to create a radio frequency
channel;
b) to acquire and maintain bit and slot synchronization between transmitters and receivers;
c) to transmit or receive a defined number of bits at a requested time and on a particular frequency;
d) to add and remove the synchronization field and the Z-field used for rear end collision detection;
e) to observe the radio environment to report signal strengths.
The present document includes New Generation DECT, a further development of the DECT standard introducing
wideband speech, improved data services, new slot types and other technical enhancements.
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The present document applies to the following radio equipment types:
• Very High Frequency (VHF) Digital Link (VDL) Mode 4 aeronautical mobile (airborne) radio transmitters, transceivers and receivers for air-ground and air-air communications operating in the VHF band, using Gaussian Filtered Frequency Shift Keying (GFSK) modulation with 25 kHz channel spacing and capable of tuning to any of the 25 kHz channels from 112,000 MHz to 136,975 MHz as defined in ICAO VDL SARPs [2].
The present technical document provides part 1 of the technical specifications.
The present document is designed to ensure that equipment certified to it will be compatible with the relevant ICAO VDL SARPs [2] and ICAO VDL4 Technical Manual [1].
Manufacturers should note that in future the tuning range for the transmitter and receiver may cover any 25 kHz channel from 108,000 MHz to 111,975 MHz.
The present document applies to "aeronautical mobile (airborne and in some cases ground vehicles)" equipment which will hereinafter be referred to as "mobile" equipment.
The scope of the present document is limited to mobile stations. The equivalent specification for ground stations is ETSI EN 301 842 [i.7].
The VDL Mode 4 system provides digital communication exchanges between aircraft and ground-based systems and other aircraft supporting surveillance and communication applications. The supported modes of communication include:
• broadcast and point-to-point communication;
• broadcast services including Automatic Dependent Surveillance - Broadcast (ADS-B), Traffic Information Service - Broadcast (TIS-B) and Flight Information Service - Broadcast (FIS-B) capabilities;
• air-air and ground-air services;
• operation without ground infrastructure.
The present document is derived from the specifications:
• ICAO VDL4 Technical Manual [1] and ICAO VDL SARPs [2] produced under the auspices of the
International Civil Aviation Organization (ICAO).
• Other relevant standards as defined in clause 2.
It is envisaged that manufacturers may provide equipment supporting:
• broadcast services only;
• point-to-point services only;
• both broadcast and point-to-point services.
The present document deals with tests of the physical layer necessary to support all types of equipment.
The present document is organized as follows:
• clause 2 provides references to relevant documents;
• clause 3 provides general definitions, abbreviations and symbols used;
• clause 4 provides a general description and architecture of VDL Mode 4;
• clause 5 provides functional specifications applicable to the physical layer including transmitter/receiver
requirements and the modulation scheme;
• clause 6 provides VDL Mode 4 equipment requirements;
• clause 7 provides general design requirements;
• clause 8 provides environmental test requirements;
• clause 9 provides detailed test procedures for the physical layer;
• clause 10 provides installed equipment requirements;
• annex A provides a detailed cross-reference to the relevant requirements contained in reference [1];
• annex B provides an assessment of VDL Mode 4 Link Budget;
• annex C provides a Bibliography;
The full physical layer tests are provided which correspond closely to the standard set of tests used for other VDL systems.
NOTE: Flight tests are defined in ETSI EN 302 842-2 [7].
Mandating and recommendation phrases
a) "Shall"
- The use of the word "Shall" indicates a mandated criterion; e.g. compliance with the particular procedure or specification is mandatory and no alternative may be applied.
b) "Should"
- The use of the word "Should" (and phrases such as "It is recommended that...", etc.) indicate that though the procedure or criterion is regarded as the preferred option, alternative procedures, specifications or criteria may be applied, provided that the manufacturer, installer or tester can provide information or data to adequately support and justify the alternative.
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The present document applies to VDL Mode 2 ground-air digital communications using Differential Eight Phase Shift
Keying (D8PSK), intended for channel increments of 25 kHz. The VDL Mode 2 system provides data communication
exchanges between aircraft and ground-based systems. The scope of the present document is limited to ground-based
stations.
The present document provides functional specifications for ground-based radio equipment intended to be used for
ground-air data communications. The present document is derived from the following documents:
• Annex 10 of the ICAO Convention on International Civil Aviation [1].
• ED 92B [i.2]: "MOPS for an Airborne VDL Mode-2 Transceiver Operating in the frequency range
118-136.975 MHz" (2012), which specifies the airborne transceiver.
The present document consists of two parts:
• the first part provides functional specifications and test procedures for physical layer and MAC sub-layer;
• the second part provides functional specifications and test procedures for link and sub-network access layers.
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This Technical Specification specifies the characteristics of the profile related to Physical and Data Link Layers for communications on LV distribution network between a Concentrator (master node) and one or more slave nodes.
The following prescriptions are applied to groups of devices that communicate using low voltage network. Each section of the network is composed by one Concentrator (acting as the master of the section), and one or more primary nodes (A-Nodes). Every A-Node can optionally be associated to one secondary node (B-Node).
- Technical specification50 pagesEnglish languagesale 10% offe-Library read for1 day
This part of IEC 61158 specifies the requirements for fieldbus component parts. It also
specifies the media and network configuration requirements necessary to ensure agreed
levels of
a) data integrity before data-link layer error checking;
b) interoperability between devices at the physical layer.
The fieldbus physical layer conforms to layer 1 of the OSI 7-layer model as defined by
ISO 7498 with the exception that, for some types, frame delimiters are in the physical layer
while for other types they are in the data-link layer.
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ISO/IEC 19369:2014 specifies requirements to verify NFCIP-2 mode selection and initial communication in the selected modes. The Test Management Service Data Units and the interface over which they are exchanged are out of scope.
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This Technical Specification specifies the physical layer of an onboard data transmission bus between the different equipment for service operations and monitoring of the fleet. This applies to equipment installed on board vehicles that are operating as part of a public transport network, i.e. in operation under public service contracts. This equipment includes operation aid systems, automatic passenger information systems, fare collection systems, etc. Equipment directly related to the safety-related functioning of the vehicle (propulsion management, brake systems, door opening systems, etc...) are excluded from the scope of this Technical Specification and are dealt with in other standardization bodies. Interfaces to such equipment or safety-critical networks can be provided through dedicated gateways. Part 8 covers the link between equipment inside vehicles consisting of one carriage only, e.g. buses and trolleybuses, as well as a set of carriages, e.g. trams and trains. For the described application, three communication systems are standardised under EN 13149. There is no ranking between the three communication systems. - Parts 1, 2 and 3 describe the WORLDFIP communication system; - Parts 4, 5 and 6 describe the CANopen communication system; - Parts 7, 8 and 9 describe the IP-based communication system. Part 71 of the 13149 series specifies the Network and System Architecture for onboard equipment. It describes basic principles of communications including a general description of the network topology, addresses schematics, basic network services, a system overview and basic device architecture. Part 8 of the 13149 series specifies the Physical Layer for IP-communication networks onboard PT vehicles. This part specifies the cables, connectors and other equipment including pin assignment and environmental requirements. Part 92 of the 13149 series specifies in detail the Profiles of basic and generic Services and Devices as well as profiles of specific services and devices. This part 8-1 specifies wired communication networks onboard PT vehicles which are based on the Ethernet specification IEEE 802.3 - 10 Base T and 100 Base Tx.
- Technical specification14 pagesEnglish languagesale 10% offe-Library read for1 day
IEC 60358-3:2013 applies to AC or DC single-phase coupling capacitor, with rated voltage higher than 1 000 V, connected line to ground with the low voltage terminal either permanently earthed or connected to a tuning device for harmonic-filters applications. It replaces Clause 1 of IEC 60358-1:2012. Keywords: AC or DC single-phase coupling capacitor
This publication is to be read in conjunction with IEC 60358-1:2012.
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IEC 62275:2013 specifies requirements for metallic, non-metallic and composite cable ties and their associated fixing devices used for the management and support of wiring systems in electrical installations. This second edition cancels and replaces the first edition published in 2006 and constitutes a technical revision. It incorporates additional tables, an annex and figures as well as revisions to such that appeared in the first edition. In places the text has been substantially altered including:
- revised and updated normative references,
- integral cable ties and fixing devices,
- change in the range of the diameter of the test mandrel,
- general notes on tests,
- mechanical properties and associated tests as well as tests for resistance to ultraviolet light and corrosion.
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The present document is one of the parts of the specification of the Digital Enhanced Cordless Telecommunications(DECT) Common Interface (CI). The present document specifies the physical channel arrangements. DECT physical channels are radio communication paths between two radio end points. A radio end point is either part of the fixed infrastructure, a privately owned Fixed Part (FP), typically a base station, or a Portable Part (PP), typically a handset. The assignment of one or more particular physical channels to a call is the task of higher layers. The Physical Layer (PHL) interfaces with the Medium Access Control (MAC) layer, and with the Lower Layer Management Entity (LLME). On the other side of the PHL is the radio transmission medium which has to be shared extensively with other DECT users and a wide variety of other radio services. The tasks of the PHL can be grouped into five categories:
a) to modulate and demodulate radio carriers with a bit stream of a defined rate to create a radio frequency channel;
b) to acquire and maintain bit and slot synchronization between transmitters and receivers;
c) to transmit or receive a defined number of bits at a requested time and on a particular frequency;
d) to add and remove the synchronization field and the Z-field used for rear end collision detection;
e) to observe the radio environment to report signal strengths.
The present document includes New Generation DECT, a further development of the DECT standard introducing wideband speech, improved data services, new slot types and other technical enhancements.
- Standard67 pagesEnglish languagesale 10% offe-Library read for1 day
ISO/IEC 18092:2013 defines communication modes for Near Field Communication Interface and Protocol (NFCIP 1) using inductive coupled devices operating at the centre frequency of 13,56 MHz for interconnection of computer peripherals. It also defines both the Active and the Passive communication modes of Near Field Communication Interface and Protocol (NFCIP-1) to realize a communication network using Near Field Communication devices for networked products and also for consumer equipment. ISO/IEC 18092:2013 specifies, in particular, modulation schemes, codings, transfer speeds, and frame format of the RF interface, as well as initialization schemes and conditions required for data collision control during initialization. Furthermore, ISO/IEC 18092:2013 defines a transport protocol including protocol activation and data exchange methods.
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ISO/IEC TR 20002:2012: a) classifies problems of P2P networking; b) defines taxonomy and concept of managed P2P; c) specifies requirements to support managed P2P; d) specifies framework for managed P2P; e) specifies information flows to support various features of managed P2P. ISO/IEC TR 20002:2012 does not define new P2P protocol or P2P-based applications. ISO/IEC TR 20002:2012 does not define manageability features for interoperation with conventional P2P-based applications. The goal of ISO/IEC TR 20002:2012 is to define a framework to provide manageability to the conventional P2P-based application.
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Update the standard to include new functions defined for NG DECT. Support of the new mechanisms introduced in NG-DECT part 5. Enhancement of security.
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Incorporate engineering changes and update TS 102 639-2: Third Generation Transmission Systems for Interactive Cable Television Services - IP Cable Modems;Part 2: Physical Layer
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- Draft149 pagesEnglish languagesale 10% offe-Library read for1 day
Editorial modification: frequency range in the note added to the forward was wrong
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ISO/IEC 16353:2011 specifies commands for the Near Field Communication Wired Interface (NFC-WI) specified in ISO/IEC 28361. The commands allow exchange of control and state information between the transceiver and the front-end.
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Editorial modification: paragraph added in the foreword
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This European profile standard will be based on IEEE 802.11 and further requirements stated in work items for the physical and MAC layer at ETSI. This profile standard will be the base standard for developing 5 GHz ITS conformance declaration and test standards.
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- Standard27 pagesEnglish languagesale 15% off
- Standardization document27 pagesEnglish languagesale 10% offe-Library read for1 day
The present document applies to the following radio equipment types:
- Very High Frequency (VHF) Digital Link (VDL) Mode 4 aeronautical mobile (airborne) radio transmitters, transceivers and receivers for air-ground and air-air communications operating in the VHF band, using Gaussian Filtered Frequency Shift Keying (GFSK) modulation with 25 kHz channel spacing and capable of tuning to any of the 25 kHz channels from 118,000 MHz to 136,975 MHz as defined in ICAO VDL SARPs [2]. The present technical document provides part 1 of the technical specifications. The present document is designed to ensure that equipment certified to it will be compatible with the relevant ICAO VDL SARPs [2] and ICAO VDL4 Technical Manual [1].
Manufacturers should note that in future the tuning range for the transmitter may also cover any 25 kHz channel from 112,000 MHz to 117,975 MHz and the receiver(s) may cover any 25 kHz channel from 108,000 MHz to 117,975 MHz. The present document applies to "aeronautical mobile (airborne and in some cases ground vehicles)" equipment which will hereinafter be referred to as "mobile" equipment. The scope of the present document is limited to mobile stations. The equivalent specification for ground stations is EN 301 842 [10]. The VDL Mode 4 system provides digital communication exchanges between aircraft and ground-based systems and
other aircraft supporting surveillance and communication applications. The supported modes of communication include:
- broadcast and point-to-point communication;
- broadcast services including Automatic Dependent Surveillance - Broadcast (ADS-B), Traffic Information Service - Broadcast (TIS-B) and Flight Information Service - Broadcast (FIS-B) capabilities;
- air-air and ground-air services;
- operation without ground infrastructure.
The present document is derived from the specifications:
- ICAO VDL4 Technical Manual [1] and ICAO VDL SARPs [2] produced under the auspices of the
International Civil Aviation Organization (ICAO).
- Other relevant standards as defined in clause 2.
It is envisaged that manufacturers may provide equipment supporting:
- broadcast services only;
- point-to-point services only;
- both broadcast and point-to-point services.
The present document deals with tests of the physical layer necessary to support all types of equipment. The present document includes:
- clause 2 provides references to relevant documents;
- clause 3 provides general definitions, abbreviations and symbols used;
- clause 4 provides a general description and architecture of VDL Mode 4;
- clause 5 provides functional specifications applicable to the physical layer including transmitter/receiver
requirements and the modulation scheme;
- clause 6 provides VDL Mode 4 equipment requirements;
- clause 7 provides general design requirements;
- clause 8 provides environmental test requirements;
- clause 9 provides detailed test procedures for the physical layer;
- clause 10 provides installed equipment requirements;
- annex A provides a detailed cross-reference to the relevant requirements contained in reference [1];
- annex B provides an assessment of VDL Mode 4 Link Budget;
- annex C provides a Bibliography;
- a document history.
The full physical layer tests are provided which correspond closely to the standard set of tests used for other VDL systems. NOTE: Flight tests are defined in EN 302 842-2 [7].
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