[lp-wan] WG Rechartering - new charter approval vote (vote ends Dec 3rd)

[Alexander Pelov <[e-mail]>]

Dear all,

As we have achieved all our milestones the LPWAN WG is now rechartering. We
have been discussing the recharter for several IETFs now, so most of the
new charter should be familiar.

The new charter is as follows:
- The introduction and the context remain unchanged.
- Charter item 1 is a generalization of the Charter item 1 we discussed in
past IETFs.
- Charter items 2 and 4 come directly from our previous charter.
- Charter item 3 was proposed, discussed and voted during the session.
- Charter item 5 has been discussed during the past several IETFs.

We would like to confirm the agreement in the room on the mailing list.
Please vote by December 3rd, 23h55 CET.

Cheers,
Pascal and Alexander

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*Charter Proposal for LPWAN Working Group*
*(Changes are given below in bold)*
A new generation of wireless technologies has emerged under the generic
name of Low-Power Wide-Area (LPWA), with a number of common
characteristics, which make these technologies unique and disruptive for
Internet of Things applications.
Those common traits include an optimized radio modulation, a star topology,
frame sizes in the order of tens of bytes transmitted a few times per day
at ultra-low speeds and sometimes variable MTUs, and, though downstream may
be supported, a mostly upstream transmission pattern that allows the
devices to spend most of their time in low- energy deep-sleep mode.
This enables a range of several kilometers and a long battery lifetime,
possibly ten years operating on a single coin-cell. This also enables
simple and scalable deployments with low-cost devices and thin
infrastructures.
Those benefits come at a price: the layer 2 frame formats are optimized and
specific to each individual technology. There is no network layer and the
application is often hard wired to the layer 2 frame format, leading to
siloed deployments that must be managed, secured and operated individually.
Migrating from one LPWA technology to another implies rebuilding the whole
chain.
To unleash the full power of LPWA technologies and their ecosystems, there
is a need to couple them with other ecosystems that will guarantee the
inter-working by introducing a network layer, and enable common components
for management and security, as well as shared application profiles. The
IETF can contribute by providing IPv6 connectivity, and propose
technologies to secure the operations and manage the devices and their
gateways.
The Working Group will focus on enabling IPv6 connectivity over the
following selection of Low-Power Wide-Area technologies: SIGFOX, LoRa,
WI-SUN and NB-IOT.
These technologies present similar characteristics of rare and widely
unbalanced over-the-air transmissions, with little capability to alter the
frame formats to accommodate this work, which makes it so that existing
IETF work (6lo) cannot be trivially applied.
The Working Group will leverage cross-participation with the associated set
of stakeholders to ensure that the work taking place corresponds to real
demands and that the proposed solutions are indeed applicable.
The group will produce informational work describing LPWA technologies and
their needs as well as new standard work to optimize IPv6-based
communications to the end device

The group will:
*1. Perform SCHC Maintenance, including enabling SCHC mechanisms for Upper
layer Protocols. *



*2. Produce Standard Track documents to apply SCHC IPv6/UDP over the
baseline technologies.3. Produce a Standards Track document to provide a
mechanism to improve the reliability of delivering fragmented multicast
packets.4. Produce a Standards Track document to define the generic data
models to  formalize the compression and fragmentation contexts. 5. Produce
a Standards Track document to enable  operations, administration and
maintenance (OAM) to the LPWAN device, including support for delayed or
proxyed liveness verification (Ping).*