Spectrum Issues for developments of WHANs at 5GHz

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Spectrum Issues for developments of WHANs at 5GHz
Annette Henley
Private Business Systems Unit (PBSU)
RADIOCOMMUNICATIONS AGENCY
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Structure of the presentation

• UK 5GHz Consultation Exercise
• Spectrum Available For HIPERLAN
• Process So Far
• WHAN in 5GHz
• WHAN Sharing Issues
• problem areas
• RA policy on Sharing Issues

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5GHz Consultation Exercise
HIPERLAN HIgh PERformance Local Area Networks
The bands being consulted on are

• 5150-5350MHz allocated to HIPERLAN max. EIRP
  200mW indoor use only
• 5470-5725MHz allocated to HIPERLAN max. EIRP 1W
• 5725-5875MHz ISM band also allocated to short
  range devices max. EIRP 25mW

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5GHz Consultation Exercise

• What is the Consultation About?

• The Agency believes that the direction of
  development should be driven by needs of the
  market in terms of cost, required service and
  accessibility of the technology concerned.
• In particular the Agency was seeking views on-
• whether only interoperable systems should be
  permitted to use the spectrum or whether other
  systems, only capable of co-existence, should
  also be allowed in
• whether only private systems should be permitted
  or whether public systems should also be allowed
• determining the best way to allocate the
  available spectrum.

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5GHz Consultation Exercise

• Process So Far

• 1st Round asked for written responses to the
  Agency Consultation Document on Short Range, High
  Data Rate, Nomadic Equipment Operating in the
  Frequency Range 5.150 - 5.875 GHz (Issued October
  1999)
• Analysis of the Responses Received and Drafting
  of RA Strawman Proposal for presentation at 5GHz
  Consultation Event
• 2nd Round SMAG 5GHz Consultation Event (2 June
  2000)
• Set up UK 5 GHz Advisory Group - 1st meeting
  held 27th July 2000

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1st Round Responses

• 21 individuals and organisations replied

• Ericsson
• RadioLAN
• Internet Central
• IEEE 802.11
• TTP
• Central Research Laboratories
• Nokia
• Philips
• Motorola
• Philips
• Motorola
• Sky

• Lucent
• BBC
• Media Channel
• Norweb
• Francis Walker
• HIPERLAN 2 Global Forum
• Professor Stephen Barton,
• University of Manchester
• BT
• Orange
• Adaptive Broadband
• Logica

See Websitewww.radio.gov.uk
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Analysis From 1st Round

• HIPERLAN Type 1 and HIPERLAN Type 2 cannot
  co-exist in the same location
• HIPERLAN Type 2 and IEEE 802.11a use same channel
  raster.
• There is a lobby for partitioning on HIPERLAN
  Type 1 and HIPERLAN Type 2 basis and on a
  public/private basis
• Some requirement for co-ordinated spectrum as
  well as licence exempt operation has been
  demonstrated
• There appears to be more demand for access to
  public and semi-public spectrum than for private
  only applications
• The number of users for particular applications
  is still an unknown quantity. The high volume
  markets for RLAN equipment will be significant.

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2nd Round Strawman Proposal
Band Use
5150-5250 MHz HIPERLAN Type 1 for indoor
systems only, licence exempt.

Max EIRP 200mW. This use reviewed after 2
years 5250-5350 MHz HIPERLAN Type 2/IEEE
802.11a, for indoor systems only,
licence exempt. Max EIRP 200mW 5470-5570
MHz HIPERLAN Type 2/IEEE 802.11a, licence
exempt. Outdoor and
indoor systems. Max EIRP 1W 5570-5725 MHz
HIPERLAN Type 2/IEEE 802.11a, for systems on a
licensed basis. Outdoor and
indoor systems.


Max EIRP 1W 5725-5875 MHz
Low power devices, licence exempt.

Max EIRP 25mW
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Terms Of Reference for 5GHz Advisory Group

• To produce recommendations to the RA which
  will
• Set the regulatory framework to ensure early
  access to the 5GHz sub-bands, maximising the
  optimal usage of the available spectrum and
  ensuring harmonisation with both European and
  International regulations. The framework will
  also recommend where necessary the appropriate
  standards to which equipment will be required to
  conform.

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Structure of 5GHz Advisory Group

• Chairman - Peter Kiddle OBE
• Group Co-ordinators
• FWA Group - David James (Nortel)
• Band Partitioning - Chris Walden (Sony)
• Marketing Issues - Jane Cooper (Orange)
• Next Meeting - 2nd October 2000 send mail to
  nigel.gunn_at_ra.gsi.gov.uk to be added to
  distribution list

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WHAN in 5GHz
5GHz technology
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WHAN Sharing Issues in 5GHz

• How many of the previous applications are
  compatible with or are part of WHAN systems?
• What is the spectrum requirement for WHAN?
• Will all WHANs be using equipment that can
  co-exist or is interoperable?
• How will Public Access systems be licensed?
• How will other co-primary users effect the
  available spectrum for WHAN?

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WHAN Sharing Issues in 5GHz

• Band partitioning is the key issue.
• The consultation results showed that the there is
  very high demand for the usage of the 5GHz
  spectrum for a number of different applications.
  WHANs are probably going to have the largest
  spectrum requirement.
• The consultation covers a huge tranche of
  spectrum (455MHz HIPERLAN plus 150 MHz ISM). How
  much of that spectrum can be used without any
  partitioning is the key issue for WHANs.

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WHAN Sharing Issues in 5GHz

• Licence exempt, uncoordinated spectrum use has
  advantages to certain types of users but is not
  the best use of spectrum for services requiring
  guaranteed quality of service levels (e.g. public
  services).
• If all the equipment used in the band can, at
  the very least, co-exist then the need to
  partition on the basis of equipment types is
  alleviated.

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WHAN Sharing Issues in 5GHz

• The spectrum requirement for WHANs will be
  determined by the highest data rate device that
  the WHAN has to interface.
• The spectrum available for WHAN will be affected
  by the number of co-primary services that are
  being operated in the UK. (i.e. EESS, MSS)

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RA policy on Sharing Issues

• RA actively supports ongoing work looking at
  spectrum requirements within the UK DTG WHN group
  and the DVB commercial requirements group.
• RA to encourage the development of highly
  spectrum efficient equipment for use within the
  home environment by using suitable coding
  techniques e.g MPEG.
• RA, OFTEL and CII are consulting at present on
  the provision of Public Services within licence
  exempt spectrum.

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RA policy on Sharing Issues

• RA currently attends ETSI BRAN and IEEE 802.11a
  to support work towards one world wide generic
  5GHz standard.
• RA signed up to ERC decision 99-23 on HIPERLAN
  and is participating in ITU studies looking at
  the sharing issues in 5GHz with a view to having
  a mobile allocation confirmed at WARC 2003.