1. Plan of ITS TF Activity Takeshi Yamamoto, ARIB Document No:
GSC-21_020 (R1)
Source:
ITS TF
Contact:
Takeshi Yamamoto
Agenda Item:
5.06
Plan of ITS TF Activity
Takeshi Yamamoto, ARIB
26-27 September 2017
HOSTED BY

2. Background
Until 2015, ITS TF had information exchange and cooperative activities among SDOs for ITU-R WP5A and ITU-T/Collaboration on ITS Communications Standards.
One of the successful outcome was cooperative contribution for the development of ITU-R Recommendation M.2084, which recommends radio interface standards of ARIB, ETSI, IEEE and TTA on V2X communication.
During 2016, ITS TF was not so active. One of the reasons for the status would be that V2X communication is now coming from standardization phase to deployment phase after the development of each SDO's standard and ITU-R recommendation on V2X.
On the other hand, in 2017, we are now recognizing new important topics to be shared such as WRC-19 Agenda Item 1.12, LTE V2X, and so on.

3. ITU-R Recommendation on V2X
ITU-R M : Radio interface standards of vehicle- to-vehicle and vehicle-to-infrastructure communications for Intelligent Transport System applications
Scope: This Recommendation identifies specific radio interface standards of vehicle-to-vehicle and vehicle-to- infrastructure communications for Intelligent Transport System applications. The technical and operational characteristics described in this Recommendation are based on current and existing frequency bands already in use for Intelligent Transport Systems (ITS) and the applications in the mobile service.

4. List of standards in ITU-R M.2084
Parameter
ETSI
IEEE
ARIB
TTA
Operating frequency range
MHz
MHz
MHz (Single channel)
RF channel bandwidth
10 MHz
10 MHz or 20 MHz
Less than 9 MHz
Less than 10 MHz
Modulation scheme
BPSK OFDM,
QPSK OFDM,
16QAM OFDM,
64QAM OFDM
16QAM OFDM
Option: 64QAM OFDM
Forward error correction
Convolutional coding, rate = 1/2, 3/4, 2/3
Convolutional coding, rate = 1/2, 3/4
Data transmission rate
3, 4.5, 6, 9, 12, 18, 24, 27Mbit/s
3, 4.5, 6, 9, 12, 18, 24, 27 Mbit/s (10 MHz)
6, 9, 12, 18, 24, 36, 48,54 Mbit/s (20 MHz)
3, 4.5, 6, 9, 12, 18 Mbit/s
3, 4.5, 6, 9, 12, 18 Mbit/s,
Option: 24, 27 Mbit/s
Media access control
CSMA/CA
CSMA/CA,
Option: Time Slot based CSMA/CA
Duplex method
TDD

5. Current status
ITS TF members shared views on further activity of ITS TF using the TF reflector, and recognized the following important topics.
WRC-19 Agenda Item 1.12 on harmonized frequency bands for ITS
Active standardization on V2X communications using LTE technology
ITS TF members think that information sharing and further cooperative activities on the important topics will be beneficial.

6. Discussion on possible work items in ITS TF 1/2
WRC-19 Agenda Item 1.12 on harmonized frequency bands for ITS
Work: Information sharing and possible cooperative contribution on relevant activities including;
development of recommendation and report in ITU-R and each region.
consideration of ITS applications in 5.8/5.9 GHz band in WRC-19 Agenda Item 1.12 and study for WRC-19 Agenda Item 1.16 that covers RLAN use up to GHz.
Expected output: ITS TF report
Milestone: Synchronize with development of ITU-R report and recommendation (e.g. After each WP5A meeting)

7. Discussion on possible work items in ITS TF 2/2
V2X communications using LTE technology
Work: Information sharing and/or facilitation on relevant activities including;
test plans and results in each region.
study on coexistence and interworking issue between WAVE/ITS G5 and LTE-V2X in 5.9 GHz band.
Expected output: ITS TF report
Milestone: Yearly report (Middle of 2018)

8. Thank you For more information, please contact: Takeshi Yamamoto
Affiliation Name: ARIB