| TIA TR-47.1 Subcommittee Meets |
 The TIA TR-47.1, Terrestrial Mobile Multimedia Multicast Systems Based on Forward Link Only Technology Subcommittee of TIA TR-47 Terrestrial Mobile Multimeda Multicast Committee met April 22-23, 2008, at the TIA offices in Arlington Va.
During its meeting, the committee approved for balloting the updated standards for Open Conditional Access for Forward Link Only Systems and the Minimum Performance Specification for Terrestrial Mobile Multimedia Multicast Forward Link Only Transmitters. It also revised and updated its work plan. The next meeting is scheduled for May 28-29, 2008 in Campbell, Calif.
For more information on TIA TR-47.1, contact Marianna Kramarikova, mkramarikova@tiaonline.org.
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| TIA and ISO/TC204 to Publish Technical Report on Data Quality for ITS Systems |
The International Organization for Standardization’s Technical Committee 204 (ISO/TC204) for Intelligent Transport Systems (ITS), is pleased to announce the upcoming publication of ISO/TR 21707: Quality of Input Data for Intelligent Transport Systems.
Developed in Working Group 9 (Integrated Transport Information, Management and Control), this standard specifies the format for defining the quality of quantitative data being exchanged between systems (including users) in a transport information application. The standard is intended to define the standard for 10 items, including accuracy, reliability and timeliness of transport-related information.
As both the ISO/TC204 International Secretariat and the Administrator of the U.S. TAG – the domestic mirror committee – to ISO/TC204, TIA plays a central role in helping shape standardization in this emerging and dynamic field. Membership in the U.S. TAG is open to all materially affected organizations with a U.S. presence. Currently there is no fee to join the U.S. TAG, although sponsorships are welcome. If you would like to participate in the technical work of either group, or are interested in attending the next meeting of the U.S. TAG as an observer, please contact Tyler Messa at: tmessa@tiaonline.org or +1.703.907.7743
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| TIA Updates
Public Safety Link Control Standard |
TIA has published TIA-102.AABF-A-3, Project 25 – Identity Extensions to Link Control – Word Formats – Addendum 3. The new standard was developed in collaboration with prominent public safety organizations under Project 25.
TIA-102.AABF-A-3, an addendum to TIA-102.AABF-A – Link Control Word Formats and Messages, defines link control word message changes required to support the Supplementary Data feature in the Inter Sub-System Interface (ISSI) for Project 25 digital trunked radio systems. These enhancements provide extended identification of the source of a call, status update, message update or call alert in cases where implicit identifications of the source are insufficient.
Project 25 is an interoperability suite of standards for digital two-way wireless communications products and systems. TIA, in collaboration with prominent public safety organizations, generates standards, interim standards, specifications and telecommunications systems bulletins that define the equipment and processes necessary for implementation of digital public safety radio communications under the APCO/NASTD/FED Project 25 standard.
APCO/NASTD/FED is composed of the Association of Public-Safety Communications Officials (APCO); the National Association of State Telecommunications Directors (NASTD); and federal government agencies (FED).
TIA-102.AABF-A-3 was formulated under the cognizance of the TIA TR-8: Mobile and Personal Private Radio Standards Engineering Committee’s TR-8.10: Trunking and Conventional Control Subcommittee. To obtain copies of the document, contact IHS International at +1.800.854.7179 (United States and Canada), +1.303.397.7796 (international) or http://global.ihs.com.
For information on the TR-8 committee, please contact Ronda Coulter at rcoulter@tiaonline.org.
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| TIA Publishes Public Safety Project 25 MOS Test Plan Vocoder Standard
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| Strengthens First Responder Communications, Voice Quality in Land Mobile Radio Systems |
TIA has published TIA TSB-102.BABF, Experiment 3 MOS Test Plan for Vocoder Technology for Project 25, Phase 2. This new standard, developed in collaboration with prominent public safety organizations under the Project 25, specifies testing standards for new and emerging vocoder technology enhancements.
The choice of vocoder technology impacts the voice quality of a communications system.
In emergency situations, the public's safety can depend upon the ability of first responders to communicate successfully via digital two-way radio, regardless of the level of background noise or other situations, including translating analog signals to digital.
TIA TSB-102.BABF provides methodology to evaluate the voice quality of land mobile radio systems using various vocoders under a variety of noise levels and operating conditions, including fire truck and police cruiser noise levels with and without sirens, helicopters, and Coast Guard outboard boats.
The standard also specifies methodology to evaluate audio quality subjectively, including the use of a � rate vocoder. Listeners associate a quality adjective with speech samples, which are then transferred to a numerical scale that provides testing results by mean opinion scores (MOS), which are statistically analyzed. TIA TSB-102.BABF compares enhanced digital technology with the baseline speech codec in TIA-102.BABA, Project 25 Vocoder Description.
P25 is an interoperability suite of standards for digital two-way wireless communications products and systems. TIA, in collaboration with prominent public safety organizations, generates standards, interim standards, specifications and telecommunications systems bulletins that define the equipment and processes necessary for implementation of digital public safety radio communications under the APCO/NASTD/FED Project 25 standard. APCO/NASTD/FED is composed of the Association of Public-Safety Communications Officials (APCO); the National Association of State Telecommunications Directors (NASTD); and Federal Government Agencies (FED).
The standard TIA-102.AABC-B-3 was formulated under the cognizance of the TIA TR-8: Mobile and Personal Private Radio Standards Engineering Committee's TR-8.4: Subcommittee on Trunking and Conventional Control. To obtain copies of the document, contact IHS International at 800.854.7179 or visit http://global.ihs.com.
For technical information regarding participating in the TR-8 committee, please contact Ronda Coulter at rcoulter@tiaonline.org. For media inquiries, please contact Taly Walsh at twalsh@tiaonline.org.
The companies participating in TR-8 are: Aeroflex, Agilent Technologies, Inc., Alcatel-Lucent, APCO Project 25, Aselsan Inc., Booz, Allen & Hamilton, Cisco Systems, Inc., City of Mesa, Communications Div., CML Microcircuits (USA) Inc., CommScope Network Division, CSI Telecommunications, Daniels Electronics Ltd., Datron World Comm. Division, Dietrich Lockard Group, Inc., Digital Voice Systems, Inc., E.F. Johnson, EADS Public Safety Inc., Ericsson, Inc., Etherstack, FBI, General Dynamics C4 Systems, Harris Corporation, Icom America Inc., Industry Canada, Institute for Telecommunication, IPC Positron, Kenwood USA Corp., Lockheed Martin Corporation, M/A-Com, Inc., Microtronix Systems Ltd., Midland Radio Corp., MITRE Corp., Motorola, National Technical Systems (NTS), NIST-OLES, Nortel Networks, Oregon State Police/SAFECOM, RELM Wireless Corp., RTKL Associates Inc., SAIC, Sigma Delta Communications, Inc., Sony Wireless Tech Division, Space Data Corporation, Tait Radio Communications, Technisonic Industries Ltd., Telchemy Incorporated, Texas Instruments, Inc., Thales Communications, Inc., TX RX Systems, Inc., Tyco Electronics, U.S. Department of Commerce, U.S. Department of Homeland Security, Vertex Standard, Zetron, Inc.
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| TIA Revises Vehicular Antenna Standards |
TIA has published TIA-329.2-C, Minimum Standards for Communications Antennas, Vehicular Antennas.
TIA-329.2-C specifies methodology to test the ability of digital two-way radio antenna systems to handle the real-time communications requirements of federal, state and local public safety agencies, utilities, railroads, and other organizations. This standard covers only vehicular antennas using the terrestrial land mobile bands between 25 MHz and 1000 MHz with trucks, motorcycles and passengers cars. It does not cover antennas used in military combat.
The testing frequency range for antenna systems using the terrestrial land mobile bands is expanded to include the 220 MHz band, lowering the 450 MHz band from a low of 400 MHz to 380 MHz, and lowering the 800/900 MHz band to 740 MHz. Testing standards include parameters for durability and operating conditions such as signal strength and range, volume and audibility, weather and site conditions, and shock and vibration stability.
TIA-329.2-C was formulated under the cognizance of the TIA TR-8: Mobile and Personal Private Radio Standards Engineering Committee’s TR-8.11: Subcommittee on Antenna Systems. To obtain copies of the document, contact IHS International at +1 800.854.7179 (United States and Canada), +1.303.397.7796 (international) or visit http://global.ihs.com.
For information on the TR-8 committee, please contact Ronda Coulter at rcoulter@tiaonline.org.
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| New Projects and Documents |
If you are interested in participating in the development of standards or in any of the TIA standards-development process, please complete an online application.
New Project Proposals:
Project Proposal No. 3-0296-1 proposed creation of new TIA standard CAVE-Based IMS Security (if approved, to be published as TIA-1141) (4/30/08)
Project Proposal No. 3-4652.000-RV2-AD4 [E] proposed revision of TIA standard Wireless Features Description (if approved, to be published as TIA-664.000-B-4 [E]) (4/30/08)
Project Proposal No. 3-4652.807 proposed creation of new TIA standard Wireless Features Description: Generic Broadcast Teleservice Transport Capability: Network Perspective (if approved, to be published as TIA-664.807) (4/30/08)
Project Proposal No. 3-4652.808 proposed creation of new TIA standard Wireless Features Description: Circuit Switched Call Precedence Over CDMA Packet Data Session (if approved, to be published as TIA-664.808) (4/30/08)
Project Proposal No. 3-0123 proposed creation of new TSB Evolution Document (if approved, to be published as TSB-152) (4/30/08)
Project Proposal No. 3-0317 proposed creation of new TIA standard IMS Centralized Services Stage 1 Requirements (if approved, to be published as TIA-1147) (4/30/08)
Project Proposal No. 3-0278 proposed creation of new TIA standard All-IP System – MMD Policy Enhancements (if approved, to be published as TIA-1127) (4/30/08)
New Documents Available:
TIA-946-A, Enhanced Cryptographic Algorithms (5/7/08)
TIA-946-2 [E], Enhanced Cryptographic Algorithms (5/7/08)
TIA-168-B, Telecommunications Telephone Terminal Equipment Labeling Requirements (4/30/08)
Telecommunications Systems Bulletin (TSB):
TSB-177, Telecommunications Telephone Terminal Equipment Guidelines for Making and Labeling CPE Complying with TIA TR-41 Standards (5/7/08)
To obtain copies of these documents, contact IHS International Inc. at +1.800.854.7179 (United States and Canada) +1.303.397.7796 (international) or visit http://global.ihs.com.
To check the status of any ballot (PN or SP), go to the TIA web page in the Standards Section to obtain current information. The link for PN ballots is:
http://www.tiaonline.org/standards/sfg/pn_report.cfm or for SP ballots
http://www.tiaonline.org/standards/committees/ballots/sp_report.cfm.
Check the TIA Calendar for upcoming standards meetings or events.
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