Re: [lp-wan] Review of draft-ietf-lpwan-overview-06.txt

Stephen Farrell <stephen.farrell@cs.tcd.ie> Wed, 04 October 2017 08:43 UTC

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To: Edgar Ramos <edgar.ramos@ericsson.com>
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From: Stephen Farrell <stephen.farrell@cs.tcd.ie>
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Subject: Re: [lp-wan] Review of draft-ietf-lpwan-overview-06.txt
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Hi Edgar,

On 04/10/17 09:12, Edgar Ramos wrote:
> Hi Stephen,
> 
> I can provide you with better explanation for nb-iot/LTE terminology 
> that you consider not well explained. Are there any in particular 
> that you have in mind ?

Thanks! I'll go over it to see what's left (that's still puzzling
to me:-) and send a substative reply later. (Won't be today though.)

Cheers,
S.

> 
> Br
> 
> EDGAR RAMOS Senior Researcher
> 
> Oy LM Ericsson AB Hardware, Devices and EMF IoT technologies
> Ericsson Research 02420 Jorvas, Finland www.ericsson.com
> 
> 
> 
> 
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> 
> -----Original Message----- From: Stephen Farrell 
> [mailto:stephen.farrell@cs.tcd.ie] Sent: Tuesday, October 03, 2017 
> 4:09 PM To: sarikaya@ieee.org Cc: lp-wan <lp-wan@ietf.org> Subject: 
> Re: [lp-wan] Review of draft-ietf-lpwan-overview-06.txt
> 
> 
> Hiya,
> 
> Thanks for the review.
> 
> Belatedly responding to your various mails as I get the -07 ready.
> 
> On 28/07/17 22:47, Behcet Sarikaya wrote:
>> Hi all,
>> 
>> Here are my comments after reading the overview document: page 4. 
>> LoRaWAN acronym?
> 
> It's not quite an acronym afaik.
> 
>> page 8. NwkID in Table 3, is it supposed to be NetID?
> 
> Yep, I think you're right.
> 
>> p.9 DevEUI and AppEUI I think they refer to the device and the 
>> application MAC addresses in 64-bits
> 
> Yes, those are explained in the text I think.
> 
>> p. 13 The 3GPP radio protocol architecture is illustration in 
>> Figure 4 s/illustration/illustrated
> 
> Yep, ta.
> 
>> 
>> control plane protocol stack and data plane protocol stack section 
>> numbering is missing
> 
> I think that's ok, a 2-level TOC is enough.
> 
>> p.14 EPC not defined
> 
> There are lots of nb-IoT/LTE terms there that could be better 
> explained. But if you want to offer text for some of those I'd be 
> happy to add that.
> 
>> Fig. 1, Fig. 7 refer to non-3GPP architectures which means
>> LoRaWAN, SIGFOX and Wi-SUN are basically IEEE 802.15.4 type of 
>> technologies?
> 
> I'm not sure what change you'd like.
> 
>> 
>> Regarding battery life, referred to on Page 11 for NB-IoT and p.15 
>> for SIGFOX, p.21 for Wi_SUN, if these technologies are used to 
>> connect devices like refrigerators which are almost always powered 
>> up, why long term battery life is an issue? On the other hand the 
>> use on the pets is a different issue.
> 
> Even when mounted on a mains-powered bit of equipment, sometimes 
> these devices run on their own battery.
> 
> On 28/07/17 23:17, Behcet Sarikaya wrote:
>> More comments: p.13 & p.24 P-GW is packet data network gateway it 
>> is not application server, the classification in Fig. 8 seems to
>> be correct.
> 
> Sorry, not sure what you mean. Figure 3 and that text were 
> contributed by folks who know more than me about that, but if you'd 
> like to suggest specific text I'd be happy to make a change, if
> there are no objections on the list.
> 
> 
> On 31/07/17 22:40, Behcet Sarikaya wrote:
>> Comments on Section 4: p.28 Valid Lifetime in the 6CO it should be
>> 
>> 6LoWPAN Context Option
> 
> Ack. Ta.
> 
>> 
>> p.30 s/LPWANs nodes/LPWAN nodes
> 
> Ack. Ta.
> 
>> p.31 staple OCSP responses
>> 
>> Online Certificate Status Protocol (OCSP)
> 
> Ack. Ta.
> 
>> 
>> p.30 section 4.8 second paragraph: add the use of a gateway with 
>> LTE uplink as a mobility solution.
> 
> I'm not sure what specific text you'd like.
> 
> Cheers, S.
> 
>> 
>> 
> 
> 
> Cheers, S.
> 
>> 
>> Regards,
>> 
>> Behcet On Fri, Jul 21, 2017 at 2:46 AM, <internet-drafts@ietf.org> 
>> wrote:
>> 
>>> 
>>> A New Internet-Draft is available from the on-line 
>>> Internet-Drafts directories. This draft is a work item of the 
>>> IPv6 over Low Power Wide-Area Networks WG of the IETF.
>>> 
>>> Title           : LPWAN Overview Author          : Stephen 
>>> Farrell Filename        : draft-ietf-lpwan-overview-06.txt Pages 
>>> : 41 Date            : 2017-07-21
>>> 
>>> Abstract: Low Power Wide Area Networks (LPWAN) are wireless 
>>> technologies with characteristics such as large coverage areas, 
>>> low bandwidth, possibly very small packet and application layer 
>>> data sizes and long battery life operation.  This memo is an 
>>> informational overview of the set of LPWAN technologies being 
>>> considered in the IETF and of the gaps that exist between the 
>>> needs of those technologies and the goal of running IP in 
>>> LPWANs.
>>> 
>>> 
>>> The IETF datatracker status page for this draft is: 
>>> https://datatracker.ietf.org/doc/draft-ietf-lpwan-overview/
>>> 
>>> There are also htmlized versions available at: 
>>> https://tools.ietf.org/html/draft-ietf-lpwan-overview-06 
>>> https://datatracker.ietf.org/doc/html/draft-ietf-lpwan-overview-06
>>>
>>>
>>>
>>> 
A diff from the previous version is available at:
>>> https://www.ietf.org/rfcdiff?url2=draft-ietf-lpwan-overview-06
>>> 
>>> 
>>> Please note that it may take a couple of minutes from the time
>>> of submission until the htmlized version and diff are available
>>> at tools.ietf.org.
>>> 
>>> Internet-Drafts are also available by anonymous FTP at: 
>>> ftp://ftp.ietf.org/internet-drafts/
>>> 
>>> _______________________________________________ lp-wan mailing 
>>> list lp-wan@ietf.org 
>>> https://www.ietf.org/mailman/listinfo/lp-wan
>>> 
>> 
> 
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