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Re: [6tisch] slot schedluing

Xavier Vilajosana <xvilajosana@eecs.berkeley.edu> Thu, 08 December 2016 12:23 UTC

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From: Xavier Vilajosana <xvilajosana@eecs.berkeley.edu>
Date: Thu, 08 Dec 2016 13:22:20 +0100
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To: Randy Turner <rturner@amalfisystems.com>
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Subject: Re: [6tisch] slot schedluing
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Hi Randy,

Table 8-145—TSCH MAC PIB attributes for macTimeslotTemplate of the
IEEE802.15.4-2015 define the timeslot timing values. Any transmission
should follow that. If not the state machine of the MAC aborts that slot.
If you need more time than what is defined in the default value you can
increase the slot macTsTimeslotLength value and the rest of PIB values
accordingly. Higher data rates are depend to the underlying radio
technology and their use may not be standard compliant. The use of longer
timeslot is advertised in the EB through the TSCH Timeslot IE.

In the minimal draft you can find an example of a macTimeslotTemplate
defining a timeslot of 15ms.

hope this helps!
regards,
Xavi

2016-12-07 21:37 GMT+01:00 Randy Turner <rturner@amalfisystems.com>:

> Hi All,
> Just re-confirming an assumption — from a TSCH perspective, slot
> scheduling assumes any single transmission “cannot” exceed a slot boundary
> — if transmissions require a certain amount of time, then the slot width is
> increased to deal with this ( or possibly increase the TX bit rate if
> possible )
>
> Is this correct ?
>
> Thanks!
> Randy
>
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