1. Global spectrum management requirements for WAVE

2. Situation Spectrum around 5 – 6 GHz is heavily used on global scale
There are many services in this spectrum because of its inherent properties:
Radar, good for high-power weather radar
Radio link, traditional band in many countries
Satellite communication – Global uplink
Military communication services
Plus many communication services such as WLAN, BRAN and various reginal/national assignments

3. 5 GHz Spectrum (not exact!)
Europe
HiperLAN
BRAN
Japan
”j-band”
North Ameri
U-NII
U-NII
ISM band
ISM
CALM M5
WAVE?
(???)
Configurable or regionally fixed part
Dedicated ITS (DSRC)
Requested : Global ITS Safety allocation

4. Spectrum CALM M5 For global use, the OBUs shall:
Be capable of operating within the range of 5.15 (4.9?) GHz to GHz
Support both 10 and 20 MHz channels
Support accurate transmit power control
RSUs will operate on the regionally allocated frequencies.

5. National/regional requirements
Unlikely to get the same spectrum all over the world, but likely some interference protection on ”safety channels”
Unlikely to have the same power and usage regime all over the world
Example: Europe has requirements to avoid ”pile-ups

6. Global spectrum config.
The mobile unit (OBU) shall be configurable when moving between regulatory areas
The OBU shall not start operation until an authorised source (e.g. fixed, licensed RSU) has provided profile information.
Profiles may be autonomously initiated if the OBU can ascertain its position.

7. Global 802.11 WAVE Channel concept must be configurable:
Centre frequency, bandwidth & power setting per channel
High priority channel(s) where all must listen (Control channel - higher layer functionality?)
802.11j has already developed most of the needed functionality