EU 5GHz Regulatory Changes

1
EU 5GHz Regulatory Changes

• Date 2007-11-13

Authors
2
Introduction

• DFS has been under scrutiny in a number of
  regulatory domains
• Canada has (at least temporarily) closed the 5600
  5650MHz band to RLANs
• Japan has tightened test requirements
• Australia changes still in the works
• EU has announced planned changes
• TCAM meeting last week response to weather radar
  complaints
• Pulse width detection threshold changed
• Was 1uS
• Changing to 0.8uS, then 0.5uS
• Added detection of staggered PRF radars with 3
  PRF values
• Interim steps include closing 5600 5650MHz band

3
TCAM Proposal

• From now to 31 March 2008
• Products placed on the market during this period
  shall as a minimum be compliant with version
  1.2.3 of EN 301 893
• 31 March 2008 is the DOW (Date of Withdrawal) for
  EN 301 893 version 1.2.3
• 31 March 2008 is the last day that products
  tested against this version of the standard can
  be placed on the market.
• In order to continue to place these products on
  the market after 31 March 2008, they shall be
  tested against version 1.3.1 or 1.4.1 of EN 301
  893
• 1 April 2008 1 July 2008
• Products placed on the market during this period
  shall be compliant with either, version 1.3.1 or
  version 1.4.1 of EN 301 893

4
TCAM Proposal 2

• 1 July 2008 31 March 2009
• Products placed on the market during this period
  shall be compliant with either, version 1.3.1 or
  version 1.4.1 of EN 301 893, AND
• In addition, when operating within the band 5600
  5650 MHz, they shall be capable of detecting
  Staggered PRF with a maximum of 3 different PRF
  values.
• This will be added as a footnote in the OJ
  listing (December 2007)
• Equipment that can not implement the Staggered
  PRF shall not operate in the 5600-5650 MHz
• But this will not be written in the regulation
  (only in TCAM minutes)

5
TCAM Proposal 3

• 1 April 2009 to 30 June 2010
• Products placed on the market during this period
  shall be compliant with version 1.5.1 of EN 301
  893
• ETSI still need to develop this standard. This
  version will be based on version 1.4.1 but in
  addition it will have the following
• DFS to detect pulse widths down to 0.8 µSec
  across the bands 5250-5350 and 5470-5725 MHz
• DFS to detect Staggered PRF across the bands
  5250-5350 and 5470-5725 MHz
• Solution for the noise calibration of weather
  radars in 5600-5650 MHz
• This is the 10 min CAC or equivalent

6
TCAM Proposal 4

• After 1 July 2010
• Products placed on the market after 1 July 2010
  shall be compliant with version 1.6.1 of EN 301
  893
• ETSI still need to develop this standard. This
  version will be based on version 1.5.1 but in
  addition it will have the following
• DFS to detect pulse widths down to 0.5 µSec
  across the bands 5250-5350 and 5470-5725 MHz

7
The Good News

• TCAM recognizes that weather radar does not have
  requirements to limit its interference in the
  band
• TCAM is looking for our feedback on specs for the
  weather radars
• See CEPT/ERC/REC 74-01 Annex 5

8
Summary

• The EU has addressed shortcomings in EN 301 893
  v1.4.1
• Equipment put on the EU market must meet these
  requirements at these deadlines
• After 31March2008 must meet EN 301 893 v1.3.1 or
  1.4.1
• As of 1July2008 detect staggered PRF (3 PRF
  values) in 5600 5650 MHz band or block the
  band
• After 31March2009 must also meet EN 301 893
  v1.5.1
• Detect 0.8uS pulse width across 5250 5350 and
  5470 5725 MHz bands
• Detect staggered PRF across 5250 5350 and 5470
  5725 MHz bands
• Include a solution for weather radar noise
  calibration period (10 min CAC)
• After 31March2010 must meet EN 301 893 v1.6.1
• Detect 0.5uS pulse width across 5250 5350 and
  5470 5725 MHz bands