Radwin Ltd. 5XACMD3CN User Manual
FinM Deployment Guide
Release 4.2.46
2‐14
Intra Train Handover (ITHO) Update Message
Network Guidelines
The Intra Train Handover mechanism discovers that a higher throughput can be achieved
through TMU‐B, defined at present as PASSIVE. (TMU‐B may be connected to the same TBS as
TMU‐A or to a different one ‐ this does not affect the ITHO).
through TMU‐B, defined at present as PASSIVE. (TMU‐B may be connected to the same TBS as
TMU‐A or to a different one ‐ this does not affect the ITHO).
An ITHO is therefore initiated and TMU‐B is re‐defined as ACTIVE. TMU‐B then sends 2 update
messages (marked in blue in
messages (marked in blue in
):
•
Update message to track side core router with on‐board router MAC ‐ to update the
track side L2 network of the new data path (same process as in the IBHO update
described above)
described above)
•
Update message to the other TMU (TMU‐A) with the track side core router MAC ‐ to
update the train L2 network of the new data path.
Figure 2‐10: ITHO ‐ Part 2
For Regualtor Approval Only