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CEA CEA-CEB18 Document Information:
Title
Recommended Practice for Transmitter Control and Status Indication in Transmitting Portable Electronic Devices (T-PEDs)
Consumer Electronics Association
Publication Date:
Jan 1, 2007
Scope:
This Recommended Practice sets forth a series of PROVISIONS that
collectively constitute a FEATURE SET outlining TERMINOLOGY and
INDICATORS to determine TRANSMIT and OPERATIONAL STATUS of
Transmitting Portable Electronic Devices (T-PEDs) and facilitate
ease of operation in controlling transmitters in T-PEDs to aid in
managing their use in sensitive electronic environments. For the
purposes of this Recommended Practice, T-PEDs are considered to be
handheld mobile communication or computing devices for sale to the
general public that intentionally transmit a radiofrequency (RF)
wireless signal.
This Recommended Practice outlines inter-related PROVISIONS that
together constitute a FEATURE SET, where the features are
understood to be implemented collectively and in their entirety for
all wireless technologies used in a product. Conformance assumes
satisfaction of all PROVISIONS in the FEATURE SET collectively, and
non-conformance assumes any one or more of the PROVISIONS have not
been satisfied.
This Recommended Practice addresses wireless technologies that
are defined in technical and/or industry standards and widely
available in consumer products (e.g., CMRS / cellular network
systems, WiFi, Bluetooth). Developing wireless technical standards
or wireless technologies not yet common in consumer products (e.g.,
UWB, 802.15.4, WMTS) are not addressed in this revision, but they
are mentioned and might be addressed in subsequent revisions.
Wireless technologies as described in this Recommended Practice are
broadly classified into categories; it is not the intention here to
provide a detailed description of the RF signal or technology
subtype1. Infrared transmitters and receivers are not
covered by this Recommended Practice.
This Recommended Practice is intended for use by portable
electronic device (PED) manufacturers, related component and
software companies, the air transport industry, relevant government
regulatory agencies, and other stakeholders that might require
information on transmitting status of T-PEDs to facilitate
policies.
This Recommended Practice is intended to be used by individual
stakeholders in the formation of their policies to manage the use
of T-PEDS in commercial aircraft, healthcare, and other sensitive
electronic environments. The PROVISIONS of this Recommended
Practice are to be implemented by producers of T-PEDs in their
products.
This Recommended Practice does NOT address medical data (e.g.,
alarms, alerts, quality of service requirements) or make any
recommendations regarding conditions under which T-PEDs that
support wireless medical data streams are to be enabled or
disabled. Such decisions regarding the transport of medical
information are out of the scope of this document and are assumed
to be in the purview of healthcare professionals.
1 Different wireless technology subtypes
within a given category (e.g., CMRS / cellular network systems,
WiFi, Bluetooth) may have distinct signal characteristics, capacity
support, dynamic power level control, and dynamic frequency
selection that may directly or indirectly influence their
electromagnetic interaction with neighboring sensitive electronic
equipment. It is not the purpose of this Recommended Practice to
provide a detailed description of wireless technologies. In
addition, the complexity of defining terminology and indicators to
specify each possible technology subtype would defeat the purpose
of a simple, clear, and consistent set of terminology and
indicators for T-PED transmit status. For instance, it is
understood that operation of WiFi may involve different subtypes
including 802.11a that operates in the 5.1 – 5.8 GHz band and
802.11b/g that operates in the 2.4 – 2.5 GHz band. Many laptop
computers and WiFi add-on cards are enabled to operate on both
frequency bands using 802.11a/b/g. It is also understood that
operation of CMRS from T-PED handsets in the USA may include
different frequency bands (806-824 MHz, 824 – 849 MHz, 1850 – 1910
MHz) as well as different signal types (analog, GSM, CDMA, iDEN).
Additional "cellular" frequency bands exist in Europe (890 - 915
MHz, 1750 – 1780, 1900 - 1980 MHz) and other parts of the world. It
is understood that a majority of currently available Bluetooth
devices are class 3 and operate at milliwatts to of power, while
class 1 devices operating at 1 watt may increasingly find their way
into commercially available products. Any indication of these broad
wireless technology categories will imply that any or all of these
technology subtypes may be actively transmitted. Likewise,
conformance of any wireless technology category to this Recommended
Practice is to account for all associated technology subtypes to be
actively transmitted.
Keywords:
- Radio Frequency
- Transmitter
- Transmitter Control
- Indicator
- Handheld Devices
- T-PEDs
- Wireless Signal
- PEDs
- RF
- Portable Electronic Devices
- Transmitting Portable Electronic Devices
- Transmit
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