5.8GHz Band C

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5.8GHz Band C
Fixed Broadband ServicesUK IR 2007 VNS2107
Andy Gowans Private Business Systems UnitUK
Radiocommunications Agency
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STRUCTURE OF THE PRESENTATION

• Background
• Where does Band C fit in?
• Where does IR2007 fit in?
• Where does VNS2107 fit in?
• Technical Details
• IR 2007 limits
• VNS 2107 limits
• Notification Process for Equipment.
• The Way Ahead within ETSI/CEPT.

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Where does the BAND C fit in?

• In the UK during consultation on the future use
  of the 5GHz Band for Broadband Services the
  available Spectrum was designated into three
  sub-bands as follows -
• BAND A 5150 - 5350 MHz - MOBILE/NOMADIC
  indoor use
• BAND B 5470 - 5725 MHz - MOBILE/NOMADIC use
• BAND C 5725 - 5850 MHz - FIXED SERVICES use
• Bands AB are available for licence exempt use
  now in accordance with requirements stated in
  Interface Requirement 2006.
• Band C should made available within the next few
  months in accordance with requirements stated in
  Interface Requirement 2007.

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Where does the IR2007 fit in?

• RTTE directive 1999/5/EC was implemented in the
  UK on 8 April 2000.
• This replaced previous national type approval
  regimes.
• Introduced conformity assessment procedures
  harmonised set of essential requirements for
  placing equipment on the market.
• UK also has WT act 1949 that requires equipment
  installed or used to have a licence or licence
  exemption.
• Article 7.2 of the directive allows member states
  to restrict putting equipment into service for
  reasons related to the avoidance of harmful
  interference.
• The UK IR 2007 provides this interface between
  the RTTE directive and the licensing of
  equipment to operate in 5.8GHz band without
  causing harmful interference.
• Article 4.1 of the directive requires that UK
  IR2007 be notified under the normal procedure
  stated in directive 1998/34/EC. (3 month
  standstill process)

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Where does the VNS fit in?

• Voluntary National Specification (VNS) VNS 2107
  was published as-
• a) as no EN has been developed 5.8GHz band.
• b) 5.8GHz is a non-harmonised band
• VNS 2107 also had to be notified under the normal
  procedure stated in directive 1998/34/EC. (3
  month standstill process)
• VNS 2107 is a voluntary specification that
  manufacturers can declare compliance with.
• Can be used when notifying the member state(UK)
  of equipment that will be placed on the market
  under article 6.4 of RTTE directive.
• Gives guidance to manufacturers on how to carry
  out equipment compliance testing in order to meet
  the requirements of UK IR2007.
• Shall be withdrawn when equivalent EN is produced
  by ETSI.

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EU Notification

• BOTH THE IR2007 AND THE VNS 2107 ARE NOW APPROVED
  AND PUBLISHED IN THE OFFICIAL JOURNAL OF THE EU.

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Technical Details (IR2007)

• Limits decided upon taking into consideration
• recommendations of WAG sharing group.
• Ensuring adequate protection of existing services
• That equipment could be produced to meet the
  limits chosen.
• UK is first major European market to try to open
  5.8GHz band.
• Expansion of use to other nations throughout ITU
  Region 1.
• comments received during the process by other
  nation states.
• that further sharing analysis will be carried out
  within the WAG and CEPT.
• Review process in place to take account of future
  analysis results and operational experience.

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Technical Details (IR2007)

• Limits included in IR 2007
• Maximum EIRP 2W
• PSD not exceeding 100mW/MHz
• additional restriction on EIRP for the elevation
  angle above the horizontal plane.
• TPC dynamic range of 19dB relative to 2W EIRP.
• The frequency range 5795 5815 MHz shall not be
  used. To be reviewed.
• Dynamic Frequency Selection shall prevent
  co-channel operation in presence of radar
  signals. DFS detection thresholds are
• - 67dBm for devices with EIRP greater than 1W
• - 64dBm for devices with EIRP from 200mW to 1W
• - 62dBm for devices with EIRP less than 200mW
• 5,10,20 MHz channel plans and corresponding
  spectral power masks are shown in Informative
  annex A. They are not mandatory.

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Technical Details (VNS 2107)

• took into consideration
• Limits and parameters used in IR 2007.
• EN 301 893 latest version.
• EN 301 390 latest version.
• That manufacturers may need additional
  information in order for there equipment to meet
  the requirements of IR2007 on installation.

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Technical Details (VNS 2107)

• Tests included and EN referenced in VNS 2107
• Frequency Range/Nominal Carrier Frequency
  Tolerance (EN 301893)
• Maximum EIRP (EN 301893) Note maximum EIRP
  increased to 2W from 1W.
• Dynamic Frequency Selection (EN 301893) Note
  Additional DFS threshold level added to cover
  systems with maximum EIRP greater that 1W.
• TPC dynamic range (EN 301893) range increased to
  19dB from 6dB.
• TX and RX spurious emissions taken from EN
  301390.

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Notification Process to place equipment on the UK
market

• 5.8GHz Band is a Non-Harmonised Band
• Need to be notified under procedure stated in
  Article 6.4 of the RTTE directive.
• SI 2000(730) implements this requirement.
• Should Notify UK RA at least 4 weeks before
  equipment is intended to placed on market.
• See www.radio.gov.uk/publication/ra_info/ra368.htm
  or RA information sheet RA368 for more
  information on how to notify.

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Way ahead for ETSI/CEPT work

• ETSI Radio Conformance Standard
• Work Item approved at last ETSI BRAN to write RCT
  for 5.8GHz Band.
• Rapporteur for RCT is Barry Lewis (Radiant
  Networks)
• Will be two step approval process.
• VNS 2107 can be withdrawn if suitable draft is
  sent during first step of approval process.
• CEPT PT SE 38
• WAG sharing studies should be taken into
  consideration when submitting SE 38
  contributions.
• WAG should build on studies already completed.
• WAG views should be input into process. (could
  appoint liaison between WAG and UK SE38)
• Any preliminary decisions made by SE38 should be
  discussed in WAG especially if it effects limits
  in IR.