IEEE 802.15 WPAN™

Task Group 4m (TG4m)

TV White Space Amendment to 802.15.4

 

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Overview

The IEEE 802.15 Task Group 4m (TG4m) is chartered to specify a physical layer for 802.15.4 and to enhance and add functionality to the existing standard 802.15.4-2006 MAC meeting TV white space regulatory requirements. The amendment enables operation in the available TV white space, supporting typical data rates in the 40 kbits per second to 2000 kbits per second range, to realize optimal and power efficient device command and control applications.

Purpose of the Project
The purpose of this amendment is to allow 802.15.4 wireless networks to take advantage of the TV white space spectrum for use in large scale device command and control applications.

The IEEE802.15.4m PAR is found here.

Definition of TV white space
White space refers to underutilized portions of the radio frequency (RF) spectrum. Large portions of the spectrum are currently unused, in particular the frequencies allocated for analog television and those used as guard bands to prevent interference between channels.
In the United States, frequency allocations in the RF spectrum are made by the Federal Communications Commission (FCC). In November 2008, the FCC voted unanimously to make unlicensed portions of the spectrum available for use.  At that time, at least three-quarters of the spectrum allocated for analog television was unused. These frequencies become available after the changeover to digital television was complete in February 2009.

Current Status

The SG-4TV was approved right before the January 2011 LA meeting. Since then, four meetings were held from January to July in 2011. PAR and 5C was prepared and submitted to EC in July, 2011.The TG4m group was approved right before the September 2011 Okinawa meeting. Thus the first TG4m meeting was held in Okinawa, Japan, in September, 2011.d.

How to participate

  • Participate by registering, attending, and presenting documents at IEEE 802.15 Meetings.
  • Access to the IEEE 802.15 Interest Group, Study Group, Task Group and Working Group pages and documents is available through the IEEE 802.15 Working Group home page. 
  • IEEE 802.15.4m conducts discussions and announcements of teleconferences and meetings via the IEEE 802.15.4m mailing list. You can learn more about the 802.15 Mailing Lists by pointing your browser here.

Information

Sessions & Milestones

Status

Year

Month

Venue

Agenda

Closing Report

Minutes

SG

2011

Jan

LA

15-11-0038-00

15-11-0077-00

15-11-0160-00

Mar

Singapore

15-11-0177-02

15-11-0311-01

15-11-0306-00

May

Palm Springs

15-11-0343-00

15-11-0431-01

15-11-0430-00

Jul

San Francsico

15-11-0467-03

15-11-0553-01

15-11-0549-00

PAR Approved

TG

2011

Sept

Okinawa

15-11-0603-02

15-11-0704-00

15-11-0719-00

Nov

Atlanta

t.b.d.

t.b.d.

t.b.d.

Who to contact with questions

The Institute of Electrical and Electronics Engineers, Inc.
If you would like to contact the IEEE 802.15 Webmaster, email to alfvin@ieee.org
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