26 Apr
2016
26 Apr
'16
2:39 p.m.
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The branch, sysmocom/ipa_nano3G has been updated
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http://cgit.osmocom.org/osmo-iuh/commit/?id=30188bb5a81e2ba5e02e9c0a522d584…
commit 30188bb5a81e2ba5e02e9c0a522d5848d2212550
Author: Neels Hofmeyr <nhofmeyr(a)sysmocom.de>
Date: Sat Apr 23 13:53:28 2016 +0200
hnbgw: dumb fix of context map hnb_list double delete
http://cgit.osmocom.org/osmo-iuh/commit/?id=6bdba59239e4353da96bcae05ce2f8f…
commit 6bdba59239e4353da96bcae05ce2f8f9a6a3b680
Author: Neels Hofmeyr <nhofmeyr(a)sysmocom.de>
Date: Mon Apr 25 15:05:32 2016 +0200
hack: simply accept UE Register Requests with TMSI
HNBGW would usually keep track of UEs that have registered, with their
IMSI. When a UE registers with only a TMSI, we obviously can't store an
IMSI. However, since we're so far never *using* the list of UEs in
osmo-hnbgw, we might as well just accept the TMSI registration and carry
on as usual.
This is particularly helpful with an ip.access nano3G femto cell, as it
tends to send UE registrations with a TMSI+LAI identification instead of
an IMSI when the subscriber is known. This causes timeouts of several
minutes until a UE registration switches back to IMSI. When simply
accepting the TMSI in osmo-hngw, no problems are apparent in our current
code state.
We could use the subscriber list during paging, but on the other hand,
it doesn't hurt to anyway always page to all HNBs connected to osmo-hnbgw.
The paging procedure does include a page-to-all-HNBs in case the first
HNB paging fails. However, since we're now failing to record UEs that
register by TMSI, we must be aware that trying to page such UE on only
its last seen HNB will fail; it is plainly missing in the list.
http://cgit.osmocom.org/osmo-iuh/commit/?id=dd072a90d77eafd2252d31834ad1cc1…
commit dd072a90d77eafd2252d31834ad1cc18afed031d
Author: Neels Hofmeyr <nhofmeyr(a)sysmocom.de>
Date: Mon Apr 25 14:55:35 2016 +0200
UE Register with TMSI: reply with a Register Reject
When receiving a UE Register Request with TMSI and no IMSI, compose a
Register Reject with the same UE Identity and send.
The accepting function expects a ue_context argument and composes the
message from the IMSI found there. This new rejection message cannot rely
on a ue_context struct and hence uses the asn1 uE_Identity directly.
http://cgit.osmocom.org/osmo-iuh/commit/?id=fd7ce5f9b48839013617aef8c7f410c…
commit fd7ce5f9b48839013617aef8c7f410ced2672754
Author: Neels Hofmeyr <nhofmeyr(a)sysmocom.de>
Date: Mon Apr 25 15:21:09 2016 +0200
RAB parameters: add Extended Max Bitrate
This IE is seen in a "real life" pcap of hNodeB operation. We did not need
it
so far, but add it to test the ip.access nano3G.
Comment from the future: the ip.access nano3G rebooted upon RAB Assignment
Request, and after adding/tweaking some IEs it stopped rebooting. This is one
of the changes that fixed the reboot issue. The changes have been tested
incrementally until reboots vanished, but it's not clear/hasn't been tested
whether omitting this change alone will cause reboots to re-appear.
http://cgit.osmocom.org/osmo-iuh/commit/?id=cbb8db325c2bdfbd5495d4b8d0edbbb…
commit cbb8db325c2bdfbd5495d4b8d0edbbbfb360d3d1
Author: Neels Hofmeyr <nhofmeyr(a)sysmocom.de>
Date: Mon Apr 25 15:17:25 2016 +0200
RAB parameters: tweak the Allocation Or Retention Priority
These values are seen in a "real life" pcap from hNodeB operation.
Comment from the future: the ip.access nano3G rebooted upon RAB Assignment
Request, and after adding/tweaking some IEs it stopped rebooting. This is one
of the changes that fixed the reboot issue. The changes have been tested
incrementally until reboots vanished, but it's not clear/hasn't been tested
whether omitting this change alone will cause reboots to re-appear.
http://cgit.osmocom.org/osmo-iuh/commit/?id=5b6fb9c301f4906f2fceac33bb74485…
commit 5b6fb9c301f4906f2fceac33bb74485d298711e3
Author: Neels Hofmeyr <nhofmeyr(a)sysmocom.de>
Date: Mon Apr 25 15:14:08 2016 +0200
RAB parameters: add Traffic Handling Priority
Add this 'missing' IE from the RAB Assignment Request (while hacking on the
ip.access nano3G).
Comment from the future: the ip.access nano3G rebooted upon RAB Assignment
Request, and after adding/tweaking some IEs it stopped rebooting. This is one
of the changes that fixed the reboot issue. The changes have been tested
incrementally until reboots vanished, but it's not clear/hasn't been tested
whether omitting this change alone will cause reboots to re-appear.
-----------------------------------------------------------------------
Summary of changes:
src/ranap_msg_factory.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
hooks/post-receive
--
Osmocom code for Iuh interface