New GMM-GMMREG-SIM_AUTH.ind/rsp primitives are added to allow GMM
resolving authentication request received from the network.
The user of the GMMREG SAP is responible for doing the resolution using
its SIM.
Depends: libosmocore.git Change-Id Id619459c17976b77cd2c7e4179123bb06807285c
Change-Id: I5c97642baac5ed29de63ae93fc7f0ecde5edf735
According to 3GPP TS 45.002, section 6.3.2.2.1, in the case of multi-
slot Uplink TBF allocation, a USF (Uplink State Flag) is given for
each PDCH allocated to the MS. Thus we need to indicate a USF value
for each PDCH to the lower layers: add ul_usf[8] to cfg_ul_tbf_req.
According to 3GPP TS 44.060, section 5.2.2, in the case of multi-slot
Downlink TBF allocation, a DL TFI (Temporary Flow Identity) given to
the MS is not limited to the scope of a single PDCH and applies to
all timeslots allocated. We're already doing this fine.
Change-Id: I1dda0b4eedcaca7e93f832fc875507028c3ff3eb
Related: OS#5500
The comment above the invocation of configure_ul_tbf() suggests that
the lower layers need to be notified about the *release* of a tbf_nr.
Change-Id: Iabfe9c7ee23335d6eae8017071651b78a36079bf
Related: OS#5500
As seen in TS 23.007 C.6.
We still don't need/want to implement ABM (acknowledged mode), hence
only the interface related parts are implemented, and transmit of SABM
message is left for the future.
Change-Id: I27aff368f4a70d30c23523946d72a751e100f298
This patch itnroduces all the boilerplate required to build and package
a new libosmo-gprs-sm.so library, which aims to contain the SM layer
implementation.
A minimal implementation is provided together with a unit test,
showcasing Activation of a PDP Context and requesting implicit GPRS
attach to GMM if it is not yet attached.
This commit also adds/improves code in GMM layer implementing the GMMSM
SAP which is used to interact SM<->GMM.
Related: OS#5501
Change-Id: I9b4a9a6364f7799540475e7e1d10ab2310768281
The DL_TBF for the assignment is not created until later on when the
DL_TBF is first used, only the DL_ASS request is stored as part of the
gpre->tbf_dl_ass_fsm.
Since no DL_TBF existed, the POLL was being stored if the DL_ASS
referred the UL_TBF by means of GlobalTFI->ULTBF.
Instead, let's not require an UL_TBF to be present and simply pass the
GRE along which can be used to send the PKT_CTRL_ACK later on when the
scheduling the poll triggers.
Change-Id: Icdaa30e9ff942fb53cc4bbd801e4542b8885b32a
This patch contains further work on several areas for the GMM layer,
like fixes and improvements in existing primitives, initial FSM
implementation, initial Tx and Rx of some GMM messages, etc.
Related: OS#5501
Change-Id: If6cbb1d425b3a9f713348f1dea4747e2b6be0a44
This patch contains further work on several areas for the GMM layer,
like fixes and improvements in existing primitives, initial FSM
implementation, initial Tx and Rx of some GMM messages, etc.
Related: OS#5501
Change-Id: I212053b3a3f27ef7d63503c3d5ef08453b2d2056
The library itself only contains a bunch of boilerplate to build the
library and have usual initialization, logging, prim APIs.
There's not yet much logic specific in it yet, but will make next
commits easier to review.
Related: OS#5501
Change-Id: Ie098576954a55e5046c2463390ab7133511c1eb3
While reworking tbf_ul_ass_fsm, avoid being in "ASSIGN" state while
waiting to send Pkt Ctrl Ack. The PCU is free to ask the TBF to transmit
data before receiving Pkt Ctrl Ack; the time where it can start
transmitting data is actually controlled by TBF Starting Time.
Change-Id: Id81f16743f2c464e01caf27ba2eb8c0fc715fe8a
The TI bit was correctly set (together with the TLLI) in
create_new_bsn(), but was not properly propagated later on in
create_ul_acked_block() to the intermediate struct before the final
encoding to the packed structure containing the final message
(gprs_rlcmac_rlc_write_ul_data_header).
Change-Id: I6ba361bc9bc47230954cca19c7f2f8cf74d8278e
We'll need to get one event for each Pkt UL ACK/NACK the UL TBF receives
in order to implement T3182 properly in a follow-up patch, hence rework
the events sent to the FSM (merge events about Final ACK and Contention
Resolution in one generic UL ACK/NACK event with some data parameters).
Change-Id: I4420abd69a318bd93fde73a67239456466071497
If there's only 1 block to be sent, the LAST_UL_DATA_SENT was being sent
before the FIRST_UL_DATA_SENT one, which created problems in the FSM
(when adding more logic later).
Furthermroe, this change also makes it send retransmission events, which
makes it similar for both FIRST and LAST events. This will also be
needed for T3182.
Change-Id: I701dbe00ff2af62c45d862a9211b5b1120f3efa3
Measurement related functionality is not yet implemented and hence the
related fields cannot be filled in yet.
Related: OS#5500
Change-Id: I6ae2df07929fb6c4733e87b18cebe75a6f24f520
This commit imports pdch_ul_controller.{c,h} from osmo-pcu.git
d8cea3c618dbd2a343e6c012e5545006d44fc244 and adapts it to be of use on
the MS side.
Related: OS#5500
Change-Id: I9d38a8de4240e65585cc8bbe3c044473af5a83e5
This code imports code from osmo-pcu.git
d8cea3c618dbd2a343e6c012e5545006d44fc244 (heavy modified to adapt to
current code base).
With this patch the RLCMAC layer is already capable of decoding RLC/MAC
GPRS data blocks and submit them as LLC frames to the upper layer.
Related: OS#5500
Change-Id: Ie7535606916c0800c0e1bd9555be022c81ea257d
This patch only introduces the gprs_rlcmac_dl_tbf subclass and
allocates/frees it based on PCH ImmAss, and adds initial paths for
received blocks. It also provides a unit test to showcase the scenario.
Change-Id: I7f98e3456ef35d80becdad3481afeb771457b0ef
This is basically an import of relevant code from osmo-pcu.git
08523c2286dfe27402f8e2eb4b98da5a529c7915 which allows encoding LLC
frames into RLC/MAC uplink data blocks.
A 1-to-1 import was not possible for several reasons:
* osmo-pcu uses C++ in some places
* osmo-pcu implements encoding of DL data blocks, not UL data blocks
* Some osmo-pcu code is still not really polished and stuff is still
mixed (for instance rlc_window(_ul).c/h were split into their own
files here).
Hence this was not a "copy all files and leave as they are" import, but
rather looking at the encode path starting on osmo-pcu.git scheduler and
see which code had to be pulled in to encode the RLC/MAC blocks.
Due to the slightly different requerirements for UL and DL blocks, it is
well possible that further work in needed in order to have the code
produce correct blocks. This is only a first step to pull in all code so
that stuff can be fixed in smallish incremental steps.
Related: OS#5500
Change-Id: I0a01d79d16bbfc63aa88e6bb0f432f3772645730
Pau Espin
Vadim Yanitskiy