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EU 5GHz Regulatory Changes

EU 5GHz Regulatory Changes. Date: 2007-11-13. Authors:. 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

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EU 5GHz Regulatory Changes

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  1. EU 5GHz Regulatory Changes Date: 2007-11-13 Authors: Rich Kennedy, OakTree Wireless

  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 Rich Kennedy, OakTree Wireless

  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

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