Transcript 19-05-0022-00-0000-Discussion-on-CBP-SG.ppt

July 2005
doc.: IEEE 802.19-05/0022r0
Discussion on Contention-based Protocol
(CBP) Study Group
Date: 2005-07-18
Authors:
Name
Company Address
Phone
E-mail
Steve
Shellhammer
Qualcomm
(858) 658-1874
[email protected]
5775 Morehouse Dr
San Diego, CA 92121
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Submission
Slide 1
Steve Shellhammer, Qualcomm Inc.
July 2005
doc.: IEEE 802.19-05/0022r0
Background
• The FCC has issued a Report and Order on the 3650 –
3700 MHz band [1]
• The R&O requires that operation in the band requires
the use of a contention based protocol
• IEEE 802.11 has a study group on this topic. It is an
802.11 study group, but is open to all other WG/TAG
• There are currently several petitions for
reconsideration to the FCC. These will not be
addressed before this week. Hence the SG may not
submit the PAR to the EC until next plenary,
depending actions of the FCC
Submission
Slide 2
Steve Shellhammer, Qualcomm Inc.
July 2005
doc.: IEEE 802.19-05/0022r0
CBP SG PAR
• The study group decided to write a PAR for an
802.11 amendment.
• 4. PAR Title
– Amendment to Standard [FOR] Information
Technology-Telecommunications and Information
Exchange between systems-Local and Metropolitan
networks-Specific requirements-Part 11: Wireless LAN
Medium Access Control (MAC) and Physical Layer
(PHY) specifications: 3650-3700 MHz Operation in
USA
Submission
Slide 3
Steve Shellhammer, Qualcomm Inc.
July 2005
doc.: IEEE 802.19-05/0022r0
CBP SG PAR
• 13. Project Scope
– Application of 802.11 based systems to the
3650-3700 MHz band in the USA.
Submission
Slide 4
Steve Shellhammer, Qualcomm Inc.
July 2005
doc.: IEEE 802.19-05/0022r0
CBP SG PAR
• 14. Project Purpose
The purpose of this project is to standardise the
mechanisms required to allow shared operation in the
3650-3700 MHz band in the USA. Likely required
mechanisms include:
– Specification of new regulatory classes (extending
802.11j)
– Sensing of other transmitters (extending 802.11a)
– Transmit Power Control (extending 802.11h)
– Dynamic Frequency Selection (extending 802.11h)
Submission
Slide 5
Steve Shellhammer, Qualcomm Inc.
July 2005
doc.: IEEE 802.19-05/0022r0
CBP SG PAR
• 15. Reason for the Project
– The existing 802.11 standard and the proposed
amendments from currently operating 802.11 TGs do
not address in detail the rules specified by the FCC for
operation in the 3650-3700 MHz band in the USA
Submission
Slide 6
Steve Shellhammer, Qualcomm Inc.
July 2005
doc.: IEEE 802.19-05/0022r0
CBP SG PAR
• 18. Additional Explanatory Notes
– Item 15 – The project will define a protocol that consists of
procedures for initiating new transmissions, procedures for
determining the state of the channel (available or unavailable), and
procedures for managing retransmissions in the event of a busy
channel. IEEE 802 standards have not been designed to
accommodate operation in ‘lightly-licensed’ bands (i.e. nonexclusively licensed, without guarantees about interference), and
the 5 GHz concepts of ‘Dynamic Frequency Selection’ and
'Transmit Power Control' should be generalized beyond sharing
with radar systems. This proposed project work on a ‘ContentionBased Protocol’ is likely to be suitable for use in ‘lightly-licensed’
bands in other regulatory domains.
Submission
Slide 7
Steve Shellhammer, Qualcomm Inc.
July 2005
doc.: IEEE 802.19-05/0022r0
CBP SG 5C
• The SG did decided (after some encouragement from
the 802.19 TAG chair) to include in the 5C that the TG
would produce a CA doc
• The 5C includes the statement
– Task Group will create a CA document as part of the balloting
process.
Submission
Slide 8
Steve Shellhammer, Qualcomm Inc.
July 2005
doc.: IEEE 802.19-05/0022r0
Discussion on CBP
• It is my understanding that the SG plans to
have a contention-based protocol that enables
802.11 stations to share the spectrum
• It is my understanding that the SG does not
plan to develop a contention-based protocol
that enables 802.11 and other 802 wireless
stations to share the band.
– The is a possible exception to this statement in that the
PAR refers to TCP and DFS
Submission
Slide 9
Steve Shellhammer, Qualcomm Inc.
July 2005
doc.: IEEE 802.19-05/0022r0
Question to the TAG
• Should we encourage CBP SG to develop a
spectrum sharing technique to enable sharing
of all wireless standards intended to operate in
the band?
Submission
Slide 10
Steve Shellhammer, Qualcomm Inc.
July 2005
doc.: IEEE 802.19-05/0022r0
References
1. FCC Report and Order 05-56, Wireless Operation in
the 3650-3700 MHz, March 16, 2005
2. Peter Ecclesine, CBP-SG Draft PAR, IEEE 802.1105/565r1, June 2005
3. Peter Ecclesine, CBP-SG Five Criteria Draft, IEEE
802.11-05/351r4, June 2005
Submission
Slide 11
Steve Shellhammer, Qualcomm Inc.