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srsLTE
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413 Commits

Author SHA1 Message Date
Francisco 6a178693a8 handle rrc configs with pdcp with sn=15 or 18 bits 2021-02-17 11:03:52 +01:00
Pedro Alvarez b0fe302f8e Added interfaces so the upper layers can trigger the PDCP status report. Added ability to the UE to send Status Report aftre reestablishment. 2021-02-16 13:21:50 +00:00
Pedro Alvarez 89a23cec7e Added statusReportRequired to the PDCP entity config. 2021-02-16 13:21:50 +00:00
David Rupprecht 24123313bf Added MAC NR RA procedure with a minimal test case 2021-02-16 09:42:09 +01:00
Pedro Alvarez 9bc08af880 - Added ability to the PDCP LTE entity to send PDCP Status report. 
- Added handling of PDCP status report to the PDCP LTE entity.
- Added test to the generation and handling of PDCP status report.
 2021-02-15 11:44:57 +00:00
Francisco Paisana c40ad81a90 cleanup s1ap methods. remove hard coded erab list in s1ap handover required message. 2021-02-15 10:49:54 +01:00
Francisco 23459dee28 Created enb_{rlc/pdcp/gtpu/phy_interfaces.h files. 2021-02-12 16:36:50 +01:00
Francisco 43e57df00b breaking enb_interfaces.h into multiple files on a layer basis. Created enb_rrc_interfaces.h, enb_mac_interfaces.h and enb_s1ap_interfaces.h 2021-02-12 16:36:50 +01:00
Pedro Alvarez dd6d6f731d Passing SN provided by upper layers to PDCP entity. Using it to calculate TX_COUNT if passed. 2021-02-12 11:57:36 +00:00
Ismael Gomez 77f905dc64 Move TTI to PID mapping to MAC 2021-02-10 21:25:25 +01:00
Andre Puschmann 6eed6f622f mac_nr: update RA related function in MAC/PHY interface 
* expose interface to trigger PRACH from MAC
* indicate PRACH tx from PHY
* add temporary RAR PDU handling with Msg3 grant indication to PHY
 2021-02-08 22:15:09 +01:00
Francisco 798f1e57e6 fix byte buffer double free in EPC 2021-02-08 12:20:37 +00:00
Pedro Alvarez de90b4753f Added the ability of the RLC AM to notify the PDCP of the acknowledged 
PDCP PDUs. This includes:

- Modifying the byte_buffer_t to include PDCP SN meta-data. This way,
  the RLC can keep track of the ack'ed bytes for a specific PDCP PDU.
- Added in the RLC an `undelivered_sdu_info queue`, to keep track of the
  amount of ack'ed bytes and the total size of the PDCP PDU,
  so the RLC can know when delivery is finished.
- Added an interface between the PDCP and the RLC so that the RLC can
  notify the PDCP when it receives an ack from the status PDUs. The RLC
  passes to the PDCP a vector of all the ack'ed pdus in a rx'ed status PDU.
- Added some tests to the notify functionality. This includes some tests
  where the PDUs are acked imediatly, and one test where the PDU is
  retx'ed.
 2021-02-05 12:24:50 +00:00
David Rupprecht 3dab82c42f Added interface that allows to update the lcid in case of a nr reconfiguration 
nr rrc updates gw lcid if reconf was received
 2021-02-05 11:08:08 +01:00
Xavier Arteaga a2d9b436d9 SRSUE: add NR stack to PHY and initial decoded PDU push 2021-02-04 10:51:47 +01:00
Francisco 78d1b8083a fix GTPU tunneling. Avoid forwarding packets to PDCP while the PDCP bearer is not yet created 2021-02-03 17:20:07 +00:00
Andre Puschmann f5c945dc2f mac_nr: add interface to set C-RNTI and contention ID from RRC 
used during contention-based/free RA
 2021-02-02 14:13:25 +01:00
Francisco 2bde28252c send UE capability indication through S1AP 2021-02-01 22:27:49 +00:00
Francisco d64ce7df77 implementation of S1 E-RAB Release Indication and Error Indication messages 2021-02-01 22:27:49 +00:00
Francisco 2befbd1825 setup of forwarding tunnels during enb s1 handover 2021-01-29 18:46:11 +00:00
Francisco 56ec2c286e add gtpu test for tunneling 2021-01-29 17:22:58 +00:00
Francisco 13649e4e19 Implement new GTPU functionality: 
- multiple tunnels per E-RAB
- data forwarding between connected GTPU tunnels
- forwarding GTPU End Marker between connected tunnels
- TeNB GTPU handles in-sequence delivery when multiple tunnels for the same ERAB exist.
 2021-01-29 17:22:58 +00:00
Andre Puschmann 4709bacefd srsue: add DL NR-ARFCN param 
* add PHY param to set DL NR-ARFCN
* use new band_helper class to convert ARFCNs to supported bands
* signal supported NR bands in UE capabilities
 2021-01-28 12:06:02 +01:00
David Rupprecht 1b19ee40e7 Added usim features for key derivation 2021-01-27 10:37:09 +01:00
David Rupprecht ceda458bb3 Added MAC NR to EUTRA and NR with stack interfaces including MAC config build 
Moved MAC logical channel config to MAC interface types
 2021-01-27 10:37:09 +01:00
David Rupprecht a6046ca875 Added funcs for asn flat config RLC and PDCP 2021-01-27 10:37:09 +01:00
David Rupprecht 64299960bd Added procedure for NR reconfiguration and RRC with NR complete 2021-01-27 10:37:09 +01:00
Francisco e0937d1dd1 add lcid check and increase limit to 10 2021-01-21 17:04:38 +00:00
Francisco bed979b722 fix out-of-bounds memory writing in the sched_interface::ue_cfg_t ue_bearers member 2021-01-21 17:04:38 +00:00
Ismael Gomez 47dbd6ed70
Merge pull request #2214 from softwareradiosystems/pr_mac_buffers 
Limit the number of UL buffers in MAC and deallocate old ones
 2021-01-20 21:12:39 +01:00
Ismael Gomez a6423442c2
Refactor NR RA files and fix header includes all over library (#2162) 
* Refactor NR resource allocation classes. Use DCI instead of grant for dummy PDSCH UE/eNB test

* Minor refactors in NR workers and ue_dl

* Fix include issues

* fix compilation issues
 2021-01-20 15:46:46 +01:00
Ismael Gomez d5f0634975
Add PUCCH SNR measurement (#2175) 
* Add PUCCH SNR measurement

* Fix PUCCH SNR estimation

* Reverted PUCCH noise estimation

* use fpclassify instead of iszero

Co-authored-by: Xavier Arteaga <xavier@softwareradiosystems.com>
 2021-01-19 21:55:24 +01:00
Ismael Gomez c1c5fa426c Fix issue with new way of managing ul buffers not working with CA 2021-01-19 16:59:36 +01:00
Francisco Paisana 9c7c190074 when the rrc fails to allocate the ue cell resources, it should erase the ue from all stack layers 2021-01-15 00:10:42 +01:00
Francisco Paisana ea8ad153c4 add configurable fairness parameter to pf scheduler 2021-01-11 11:56:13 +01:00
David Rupprecht f7d313147a Added infrastrukture for measurements 
Init rrc_nr as part of the LTE stack
 2021-01-08 17:20:08 +01:00
David Rupprecht b79eef0860 Introducing nr_rrc <-> rrc interface for eutra and nr cap query 2021-01-08 17:20:08 +01:00
David Rupprecht 9eb0b72cb4 Added rrc function has_nr_dc 2021-01-08 17:20:08 +01:00
Pedro Alvarez 0c20b7a455 Added support for S1AP modify bearer request support. This includes: 
- Handle received E-RAB S1AP at s1ap.cc.
 - Added methods to rrc.cc, rrc_ue.cc and rrc_bearer_cfg.cc to handle erab modify request.
 - Made RLC add_bearer() function capable of re-creating the RLC entity.
 - Send RRC reconfiguration to the UE and reply to the EPC with S1AP
   modify bearer response.

This commit also adds support to srsEPC to send S1AP modify bearer request for
testing purposes.
 2020-12-18 10:52:51 +00:00
Francisco Paisana 099dad8cb1 disable PHR handling in the UL sched by default 2020-12-17 17:56:42 +01:00
David Rupprecht 62b558fccf Move rat type to common header 
Removed phy measurement from rrc interface phy

Updated rrc interface for handling measurements
 2020-12-16 14:12:38 +01:00
Ismael Gomez f9a02299f9 Use MAC PDU pointer instead of tti_rx and rnti as a key to associate buffers. Decouple crc_info() and push_pdu() functions. This allows for different timing architectures in the PHY 2020-12-16 13:49:29 +01:00
Francisco Paisana 82eb31f70f add rlc metrics to enb 2020-12-14 16:59:09 +01:00
faluco f20b75a05f Re-structure enb metrics a bit. Create a generic mac metric struct and per ue mac metrics struct. 2020-12-14 13:16:13 +01:00
faluco 5529943172 Add a per sector rach preable counter for the metrics. 2020-12-14 13:16:13 +01:00
faluco dcd1157d39 - Prototype the extension of enb metrics. 2020-12-14 13:16:13 +01:00
Pedro Alvarez 7eebd71627 Added S1AP E-RAB release command/response handling to srsENB. 
Added the ability to srsEPC to send the E-RAB release command.
 2020-12-12 15:59:27 +01:00
Francisco cba0cc457f sched rand test refactor: creation of abstract sched simulator class for testing 2020-12-12 15:59:27 +01:00
Francisco 2598989f7d replace msg3grant type from C-array to bounded vector 2020-12-12 15:59:27 +01:00
Francisco 22229adf08 fix: normal phr is only sent for PCell 2020-12-12 15:59:27 +01:00