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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 Madrid, Spain, 29 September-2 October 2008

Updated proposals for the In-Home, Access, and Coexistence clusters of requirements were presented to the working group for a second 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 69% of the working group and thus failed to attain the needed approval to become part of the baseline of the draft standard.

The confirmation vote on the HomePlug-Panasonic Access proposal was conducted second. The proposal received affirmative votes from 48% of the working group and thus failed to attain the needed approval to become part of the baseline of the draft standard.

The confirmation vote on the CEPCA-SiConnect-HomePlug Coexistence proposal was conducted last and received abstain votes from 80% of the working group reflecting the desire of many members to defer the decision on the Coexistence part of the draft until the next round of confirmation voting on the In-Home and Access proposals.

See the results of confirmation voting for more details.

Following these failures to confirm, the down selection process was reset for the In-Home and Access clusters. Eliminated proposals were brought back for further consideration and the opportunity to update them was offered before one round of elimination voting was conducted for each cluster.

For the In-Home cluster, HomePlug, Panasonic, and Hisilicon maintained the merge between their original proposals. Two proposals were brought back for consideration: the UPA and the HomePlug-Panasonic-Hisilicon proposals. Updated proposals were presented before the elimination vote was conducted. The HomePlug-Panasonic-Hisilicon proposal survived the elimination vote. A confirmation vote will be held during the next meeting.

For the Access cluster, HomePlug and Panasonic maintained the merge between their original proposals. Three documents were brought back for consideration: the UPA-OPERA proposal, the HomePlug-Panasonic proposal, and the Mitsubishi proposal. The Mitsubishi and HomePlug-Panasonic proposals survived the elimination vote.

At the end of the working group meeting, HomePlug, Panasonic, and Mitsubishi announced their intention to merge their proposals. A confirmation vote on the merged proposal is thus scheduled for the next working group meeting.

See the results of elimination voting for more details.

The next meeting is scheduled for 4-6 November 2008 in San Francisco, CA, USA.

The process that follows the confirmation of the technical proposal as part of baseline of the standard was approved. It defines the steps for developing the first version of the Draft Standard and subsequent development until the working group decides to move it to Sponsor ballot.

Jean-Philippe Faure
IEEE P1901 Chair

Reports on previous meetings:

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.


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.

About The IEEE-SA Corporate Standards Program

The IEEE-SA Corporate Standards Program allows entities to create standards within an ANSI-accredited, open process. Standards are developed in company-based working groups in which each member has one vote. This industry-oriented program allows for standards creation in as little as one to two years, depending on participant commitment and funding for IEEE services that can optimize all phases of the standards development process.

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