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Re: WLAN/ New Structure of the Coexistence Group

Coexistence across wireless working groups is vital, therefore I favor options 2 or 3 over option 1.  New proposals  for the unlicensed bands  must be evaluated
based on still yet to be established coexistence guidelines.   No new standards should be developed for the unlicensed bands without *first* establishing these
guidelines.  Either forms 2 or 3 seem capable of establishing coexistence guidelines.

Which structure is best depends on operating principles.  I believe it is important that application of the coexistence guidelines be based on principle and 802
must avoid creating new wireless standards (now or in the future) that operate in the same radio space and yet do not coexist with any of its viable existing
standards in that radio space.  Membership in various wireless working groups may increase or decrease as standards appear and mature.   Therefore, there appears
to be a problem with managing coexistence through a joint task group which votes to approve  new wireless standards, since the votes might just reflect relative
numbers of active voters in working groups, rather than rational coexistence principles.

This leads me to ask about a (fourth?) option where a joint task group (as Steve and Al have proposed) *develops* guidelines and then ExCom them self (or an 802
Wireless Coexistence Working Group) *applies* the guidelines in some predetermined fashion.

Carl Temme

Steve Shellhammer wrote:

> All,
>         Within IEEE 802.15 we have a task group (TG2) to address the issue of Coexistence
> of WPANs and WLANs in the unlicenced band.  Recently there has been a growing interest in
> the issue of Coexistence within IEEE 802.11, with the formation of the 5G study group.  Also
> recently the IEEE 802.16 working group has established the Wireless HUMAN group to look
> at establishing standards for Broadband wireless access in the unlicenced bands.
>         As a result of all this activity we are looking for the best structure to address Coexistence
> within the IEEE 802 Wireless working groups.  The purpose of this email is to start an email discussion
> on these reflectors about the various options that we have.  The plan after that would be to capture
> the essence of this discussion and to make a proposal at the Monterey meeting as to how to structure
> the Coexistence work within the Wireless 802 groups.
>         Attached is a presentation that Al Petrick and I made at the Joint 802.11 and 802.15 meeting
> in Tampa.  This proposal represents one approach.
>         The following are the three approaches I have heard mentioned.  Please comment on them by
> replying to this email. Please include all three email reflectors so members of all three wireless working
> groups can participate.
> 1.      Set up three separate coexistence task groups, one in each working group.
> 2.      Form a joint Task Group under the three working groups.  This is a new structure that
>         has never be done before.
> 3.      Form a new working group.  This Wireless 802 Coexistence working group would address
>         all coexistence issues within the unlicenced bands.
>         Please send in your comments.
> Sincerely,
> Steve
>   ------------------------------------------------------------------------
>                                                                                 Name: 00398r0P802-15_WG-Proposal-for-an-IEEE-802-Wireless-Coexistence-Group.ppt
>    00398r0P802-15_WG-Proposal-for-an-IEEE-802-Wireless-Coexistence-Group.ppt    Type: Microsoft PowerPoint Show (application/vnd.ms-powerpoint)
>                                                                             Encoding: base64
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