Hi everyone,
This is a quick summary of the meeting on Oct 20, 2020.
The authors of the WG documents are urged to reply to Vijay's email on plans to
respond to WG reviews.
Richard mentioned the application of serving as the 3rd WG chair should be sent
to Martin (our AD) by Oct 20.
On the recharter discussion, Chunshan gives a short presentation on the IB/OB
issue. In particular, he mentioned that 3GPP has defined IB+OB for the edge
computing case, where UE and UPF exchange information using a special 3GPP
tunnel header (in release 16), and UPF exchanges information with local NEF
using a new interface defined in release 17.
Richard asked whether is security/privacy issue. Chunshan replied that the
information exposed by 3GPP standards are trustful. Also 3GPP has identified
some metrics that are not sensitive and can be safely distributed to 3rd
parities.
Sabine asked whether the two transport methods should be integrated or should
there be a single point to get information of both RAN and edge information so
that a query contains both time-sensitive and insensitive information. Chunshan
replied that local NEF can reroute the request to the central NEF is the
information is not time sensitive. Luis mentioned it is also possible to carry
the information in packets, and there are existing efforts as in IFIT which
piggyback telemetry information in packets.
Sabine suggested we should start a discussion on the mailing list and gather
feedback on use cases which combine both RAN and edge information. She
mentioned that many people are working on this issue and such a discussion can
help getting more attraction from people outside the WG.
Luis shared his thoughts on treating ALTO/3GPP standards as underlay/overlay.
He mentioned there is existing work on making data centers as overlay, and ALTO
aggregates the information and answers queries from applications. Similarly,
the 3GPP entities have only information of the edge and can use ALTO to learn
information about the network.
Chunshan, Luis, Sabine and Richard, please correct me if some points are missed
or misinterpreted. More detailed meeting minutes can be found at [1].
[1]
https://docs.google.com/document/d/1H5HvSbOT54IPCniWi8Xrxive8q1UpV1ZyYda46P0-b0/edit?usp=sharing
Best,
Kai
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