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Osmocom Packet control Unit (PCU): Network-side GPRS (RLC/MAC); BTS- or BSC-colocated https://osmocom.org/projects/osmopcu
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Jacob Erlbeck e25b5b91f6 tbf: Only create dummy frames if necessary 
Currently a lot of LLC dummy commands will be generated while waiting
for an ACK for the DL TBF, even if there are blocks that could be
resent instead.

This patch modifies create_dl_acked_block to only call
create_new_bsn() if there is unsent LLC data or m_window is empty.
If the TBF is in state FLOW, no unsent LLC data is left, but there
are blocks left in m_window, those are resent instead.

Sponsored-by: On-Waves ehf
 		2015-03-25 12:34:38 +01:00
contrib systemd: Do not re-start in case of exit(1) (e.g. a config issue) 2014-03-21 18:18:36 +01:00
examples add missing examples/Makefile.am 2013-01-11 18:03:25 +01:00
src tbf: Only create dummy frames if necessary 2015-03-25 12:34:38 +01:00
tests tbf/test: Add test for delayed release 2015-03-25 12:34:34 +01:00
.gitignore types: Add a simple testcase for basic types and fix the LLC code 2013-11-21 21:30:23 +01:00
COPYING import GPLv2 license text to this project 2012-07-22 22:05:44 +02:00
Makefile.am tests: Create tests directory and move the VTY testing into there 2013-08-02 13:39:55 +04:00
README Doc: Update on README and tbf.txt 2012-12-18 10:04:03 +01:00
TODO TODO: Update the todolist with some musings... 2014-01-16 10:11:57 +01:00
configure.ac tests: Move the RLCMACTest into the test directory and setup autotest 2013-08-02 13:40:20 +04:00
git-version-gen Add auto-foo (partial cleanup, master makefile/configure.ac 2012-06-14 21:05:44 +08:00
osmoappdesc.py Added conditional python-based tests for VTY/config handling 2013-04-06 11:00:20 +02:00

README 

This is an implementation of Packet Control Unit (PCU) according to TS 04.60

The PCU is part of BSS, so it connects directly to SGSN.


== Current limitations ==

 * No PFC support
 * No fixed allocation support
 * No extended dynamic allocation support
 * No unacknowledged mode operation
 * No PCCCH/PBCCH support
 * Only single slot assignment on uplink direction
 * No half-duplex class support (only semi-duplex)
 * No handover support
 * No measurement support
 * No TA loop
 * No power loop
 * No CS loop
 * No EGPRS