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IEEE P1901

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IEEE P1901 Draft Standard for Broadband over Power Line Networks: Medium Access Control and Physical Layer Specifications

Report on the meeting held in San Francisco, CA, USA, 4-6 November 2008

Prior to the San Francisco meeting HomePlug-Panasonic and Mitsubishi merged their proposals for the Access cluster of requirements, and the last surviving In-home proposal from HomePlug-Panasonic-Hisilicon was updated. Both proposals were presented for a first round of confirmation voting. The proposals require 75% majority approval from the working group to become part of the baseline of the standard (see the down selection process for more detail).

The confirmation vote on the Panasonic-HomePlug-HiSilicon In-Home proposal was conducted first. The proposal received affirmative votes from 72% of the working group and thus failed to become part of the baseline of the draft standard.

The confirmation vote on the HomePlug-Panasonic-Mitsubishi Access proposal was conducted second. The proposal received affirmative votes from 68% of the working group and thus failed to become part of the baseline of the draft standard.

See the results of confirmation voting for more details.

Following these failures to confirm, a three-week comment period was opened. The Working Group will begin addressing received comments during a meeting via teleconference scheduled for the 9th of December 2008. The adressing of comments will continue during the face-to-face meeting to be held 16-18 December 2008 in Kyoto, Japan (see next meetings). A round of confirmation voting will be held by the end of the meeting in Kyoto on proposals related to the three clusters of requirements.

The Working Group also discussed improvements to the Down Selection Process that will facilitate the resolution of comments associated with No and Abstain votes and thus facilitate progress towards a 75% WG consensus on a baseline document. A proposal related to improvement of the process will be submitted for approval during the next face-to-face meeting in Kyoto.

Jean-Philippe Faure
IEEE P1901 Chair

Reports on previous meetings:

Madrid, Spain, 29 September-2 October 2008

Miami, FL, USA, 8-10 July 2008

Fukuoka, Japan, 5-6 March 2008

San Diego, CA, USA, 11 December 2007

Boston, MA, USA, 15-18 October 2007

IEEE P1901 milestones

June 2005 - PAR approved
November 2005 - Adoption of the general work flow - Formation of a sub-group to develop unified requirements
January 2006 - Approval of the use cases - Decision to split the requirements into three clusters: In-Home, Access and Coexistence/Interoperability
March 2006 - Approval of the down selection process to achieve the baseline of the standard - Approval of the description of topologies.
September 2006 - Approval of the channel and noise models.
February 2007 - Approval of 400 requirements split into three clusters: access, in-home and coexistence - Calls for technical proposals
June 2007 - 12 proposals received; 4 proposals per cluster of requirements
July 2007 - 11 proposals passed the low hurdle vote; 4 in-home proposals, 4 access proposals and 3 coexistence proposals
September 2007 - Only two proposals per cluster remain for consideration after voluntary mergers.
October 2007 - One in-home proposal and one access proposal remain as candidates for confirmation after the first round of elimination voting.
March 2008 - A single coexistence proposal remains as candidate for confirmation after the last round of elimination voting.
July 2008 - The first round of confirmation voting for the in-home, access, and coexistence proposals is held. All three votes fail.
September 2008 - The second round of confirmation voting for the in-home, access, and coexistence proposals is held. The votes on the in-home and access proposals fail. The vote on the coexistence proposal is ruled invalid because the number of abstain votes exceeds the established percentage.
November 2008 - The second round of confirmation voting for the in-home and access proposals is held. Both votes fail.

About IEEE P1901

The working group, formed in June 2005, has grown from 20 to more than 50 members. Members are corporations, government agencies, trade associations, universities, and standards developing organizations. Each entity has one vote.

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