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95 Commits (407da794e1c58d139cfa69daf6bfcc091a71e353)

Author SHA1 Message Date
Andre Puschmann 483a216bd5 ue,stack: refactor handling of radio bearears in UE stack 
this is a rather large commit that is hard to split because
it touches quite a few components.

It's a preparation patch for adding NR split bearers in the next
step.

We realized that managing RLC and PDCP bearers for both NR and LTE
in the same entity doesn't work. This is because we use the LCID
as a key for all accesses. With NR dual connectivity however we
can have the same LCID active at the same time for both LTE and NR
carriers.

The patch solves that by creating a dedicated NR instance for RLC/PDCP
in the stack. But then the question arises for UL traffic on, e.g. LCID 4
what PDCP instance the GW should use for pushing SDUs. It doesnt' know
that. And in fact it doesn't need to. It just needs to know EPS
bearer IDs. So the next change was to remove the knowledge of what
LCIDs are from the GW. Make is agnostic and only work on EPS bearer IDs.

The handling and mapping between EPS bearer IDs and LCIDs for LTE
or NR (mainly PDCP for pushing data) is done in the Stack because
it has access to both.

The NAS also has a EPS bearer map but only knows about default and
dedicated bearers. It doesn't know on which logical channels they
are transmitted.
 3 years ago
Andre Puschmann 7113e55d53 rlc: refactor RLC entity to use smart pointers for holding bearers 
this patch mainly modernizes the bearer creation to use smart pointers.
that allows to simplify the error handling.

ue_stack is changed to match new interface. This commit compiles
but doesn't work.
 3 years ago
David Rupprecht 6d5391756c Refactor build of RLC NR config 3 years ago
David Rupprecht d1d8500ce5 Add testcase for reconfiguration 3 years ago
David Rupprecht ec19919246 Fix NGAP valgrind test 3 years ago
Pedro Alvarez aae266e848 Added configuration option for S1AP SCTP bind port 3 years ago
Xavier Arteaga b1e4720721 SRSUE/SRSENB: added tx_enable flag in worker_end 3 years ago
Xavier Arteaga 027201d457 SRSUE/SRSENB: Refactor NR workers to generalise lower PHY 3 years ago
Bedran Karakoc c280ac5ad6 Introducing extended NGAP functionality 
Remove unused logger for now in ngap::ue to pass tests
 3 years ago
Francisco 5a82a63bb5 bugfix,srsenb: fix intraenb handover softbuffer allocation during handover 3 years ago
Francisco 2a009eb340 sched,feature: Enable configuring maximum coderate for SIB allocations 3 years ago
Francisco 6ababf401b feature,sched: allow setting initial DL CQI in enb.conf 3 years ago
Francisco e8983b88f0 refactor: use enb_cc_idx instead of ue_cc_idx in mac::ue 3 years ago
Pedro Alvarez 299d2ee35d Added interface to make the PDCP notify the RRC of integrity check 
failures.
 3 years ago
Francisco 7e77da6a15 mac,optimization: use rnti memory pool to create mac::ue objects 3 years ago
Andre Puschmann c0be8187c8 rlc interface: convert entire read_pdu() interface to return uint32_t 
we had it returning int but had a bug in using the return value properly,
i.e. handling when -1 was returned in RLC TM.

Thinking about it more, it doesn't make sense to have a negative return
value here anyway. Either the RLC can return a PDU or not. If it can't the
returned lenght is zero.
 3 years ago
Andre Puschmann aaffdeb326 rrc,rlc: add method to signal protocol failure to RRC 
general-purpose method for lower layers to signal protocol
failures to higher layers, i.e. RRC.

In the current case, implement a direct release of the UE (enb) or
a reestablishment (UE).
 3 years ago
Francisco ceaef3523f sched,feature: Enable setting the target PHR below which the maximum UL grant size starts decreasing 3 years ago
Francisco 486823e5de sched,bugfix: The PHR handling scheme now considers the number of PRBs of the UL grant that carried the PHR. Before, it was assuming the most conservative scenario of Nprb=1 3 years ago
Francisco 89406b07d6 make eNB UL SNR initial value an exponential average alpha configurable 3 years ago
Pedro Alvarez 18e2149d68 Sending Initial Context Setup Response after RRC reconfiguration. 4 years ago
Xavier Arteaga 235a664120 SRSUE: Removed PUSCH-DMRS/SRS pregeneration methods 4 years ago
Francisco a587d20252 allow specification of subset of valid measurement gap offsets in rr.conf 4 years ago
Xavier Arteaga 48e0fc3c99 Implemented initial PBCH decoder and refactored SSB candidate selection 4 years ago
Francisco 7076dbfef8 feature, scheduler: Add configuration parameter to set minimum TTI interval between TPCs 4 years ago
Francisco dedd9c09a7 feature, scheduler: Add abitility to set minimum aggregation level in PDCCH, and disable adaptive aggregation level based on target BLER 4 years ago
Francisco c5029fc266 feature - implement adaptive link adaptation in DL and UL 4 years ago
yagoda 9501283c1c fixing support for extended Cyclic Prefix 
small cosmetic fixes of CP code
 4 years ago
yagoda f90f6f0c7e adding MAC 0 padding support 4 years ago
Xavier Arteaga 60015e7ceb Made intra frequency cell search and measurment generic 4 years ago
Francisco 1488606156 refactor - create s1ap dedicated folder 4 years ago
Xavier Arteaga a57336d64f Integrate periodic SSB measurement in SRSUE and fix related defects 4 years ago
Francisco c5396155ad set default gtpu tunnel close timeout to infinity 4 years ago
Francisco 15484e9472 rrc - make t304 configurable via rr.conf 4 years ago
Francisco c6b9c12ba2 gtpu, feature - added the ability to configure gtpu indirect tunnel timeout value. This parameter is useful in the case that the end marker is not received 4 years ago
David Rupprecht c117b563c9 Initial commit for ngap in enb 4 years ago
Francisco 7bee75e126 update description of srsenb --expert.nof_prealloc_ues config parameter, and added a comment in header file explaining the use of such parameter. 4 years ago
Francisco 5818488b27 change enb max_nof_ues config parameter to nof_prealloc_ues 4 years ago
Francisco 01eace2631 rrc paging mechanism improvements 
- moved paging record handling to separate class
- parallel access to pending pcch messages by phy workers based on TTI and without common lock
- asn1 pcch message packing now takes place in stack thread, to avoid real-time issues
 4 years ago
Xavier Arteaga a8e181971c Refactored PHY NR procedures for supporting DCI formats 0_1 and 1_1 4 years ago
Francisco 5cecb40410 rlc,bugfix - increase pdcp sn notification ack list maximum size 4 years ago
Andre Puschmann 598594c51a all: bunch of pass by const& changes suggested by LGTM 4 years ago
Xavier Arteaga 334b308c35 Fix DCI NR configuration from main configuration 4 years ago
Francisco Paisana d39183419c
Separate TPC PUSCH and PUCCH target SINR (#2740) 
* separate target pusch and pucch sinr configurations in tpc class and rr.conf
 4 years ago
Andre Puschmann 0826b86cec srsue: remove NR DL freq and ARFCN option 
not required anymore as all NR carrier tuning is done
through RRC signaling
 4 years ago
Andre Puschmann ff53d2b8b8 all: set of trivial changes reported by LGTM 
mainly fixmes, unused/empty code, etc.
 4 years ago
herlesupreeth 0f06ec0d9c Add feature to provide custom GTP-U (S1) address to be advertised inside S1AP messages 
This feature is useful in scenarios where eNB is behind a NAT and EPC on public cloud
Since eNB's GTP-U can only bind to IP address visible in it's host (usually a private IP beind a NAT), it advertises the same to UE in S1AP message
resulting in traffic from EPC to eNB (DL traffic) not able to reach eNB. This commit solves this issue by providing a means to advertise a different IP address than the one GTP-U UDP socket is bound to.
This IP is usually advertised in InitialContextSetupResponse and E-RABSetupResponse.

In order to make use of this feature, use the following parameter in enb.conf

Example:

gtp_advertise_addr = 213.61.141.82
 4 years ago
Matan Perelman 7ee52dc676 srsUE: Add option to filter N_id_2 / PSS to configuration 4 years ago
faluco 0afd59a5a0 Replace a string with a const char * in the rlc to_string. 4 years ago
Xavier Arteaga 407903e0d6 SRSUE: refactor carrier setting for accepting a dynamic carrier configuration 4 years ago