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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 Kyoto, Japan, 16-19 December 2008

As an initial activity during this meeting, the Working Group discussed the comments received on the proposal that failed the previous confirmation vote in San Francisco in November.

Among the received comments, a group of companies involved in Access BPL networking, IBM, Ambient, IBEC, Corinex, UPLC, PLC Ventures, and the chip vendor DS2, submitted a proposal to add an ITU-T Study Group 15/Q4 G.hn Recommendation Compatible PHY/MAC option to the FFT PHY/MAC and the Wavelet PHY/MAC defined in the In-Home and Access proposals that are candidates for confirmation. HomePlug, Panasonic, Mitsubishi, Hisilicon and the co-authors of the surviving proposals accepted the proposed change and submitted updated In-Home and Access proposals 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 updated Panasonic-HomePlug-HiSilicon In-Home proposal was conducted first. The proposal received affirmative votes from 85% of the working group and thus passed to become part of the baseline of the draft standard.

The confirmation vote on the updated HomePlug-Panasonic-Mitsubishi Access proposal was conducted second. The proposal received affirmative votes from 97% of the working group and thus passed to become part of the baseline of the draft standard.

The confirmation vote on the CEPCA-SiConnect-HomePlug Coexistence proposal was conducted last. The proposal received affirmative votes from 100% of the working group and thus passed to become part of the baseline of the draft standard.

See the results of confirmation voting for more details.

With these confirmation votes, a major milestone has been reached. The next step is the development of the first version of the draft standard based on the three confirmed proposals. A Technical Sub Group was formed to perform this task.

The next meeting is scheduled for 3-6 February in Miami, FL, USA (see next meetings).

Jean-Philippe Faure
IEEE P1901 Chair

View the press release regarding confirmation.

Reports on previous meetings:

San Francisco, CA, USA, 4-6 November 2008

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. A reset vote is held for in-home and access yielding a single proposal for confirmation in the in-home cluster, and two proposals for the access cluster. A voluntary merger in the access cluster is announced at the end of the meeting, bringing the total for access to a single proposal.
November 2008 - The first round of confirmation voting for the in-home and access proposals is held. Both votes fail.
December 2008 - The second round of confirmation voting for the in-home, access, and coexistence clusters is held. All three proposals are confirmed.


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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