Transcript new-roe-jik-ieee1904dot3-1115-v00.pptx

IEEE P1904.3 TF Radio over
Ethernet update
Jouni Korhonen
IEEE 802.1TSN @Dallas 2015
1
Disclaimer
• This is not an official IEEE 1904 WG output;
just an informal update what is happening
regarding Radio over Ethernet in IEEE P1904.3.
2
What is IEEE 1904.3 TF and RoE?
• IEEE 1904.3 specifies transport protocol and an encapsulation format i.e.,
RoE for transporting time-sensitive wireless radio related application
streams between two endpoints over Ethernet-based transport networks.
• IEEE 1904.3 also specifies mappers from current CPRI to native RoE.
3
Updates since Waikoloa..
• Two meetings held (one virtual and one f2f).
• Bi-weekly calls still running.
• The first draft spec was estimated to be out by
October. Goal achieved, but the draft is still in
_very_ draft state i.e., D0.x versions circulated.
4
Current status
• Major simplifications to RoE header done:
– Larger flow and packet type spaces.
– No combined timestamps and sequence numbers on a single
flow -> use either one.
– Separate data and control packet families.
• Mappers getting into shape (how to map existing ”well
behaving” CPRI to native RoE and vice-versa):
– ”description language” for describing the payload.
– ”description language” for describing the control word
processing and selective transport of control words.
– Two modes: ”nearly” structure agnostic and structure aware.
• Few more rounds ahead before D1.0..
5
Q&A
More data available:
http://www.ieee1904.org/3/index.shtml
6