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b08ce59bc284dde8f510b5053bcc89ff6c6b4032
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3573 Commits
Author SHA1 Message Date
Robert Schmidt b08ce59bc2 Pass assoc_id to RRC and use when sending E1AP messages 2023-10-25 20:22:32 +02:00
Robert Schmidt 7d37143bac Read and forward NSSAI in E1AP Setup Request 2023-10-25 20:22:32 +02:00
Robert Schmidt b26dcc1ee5 Store E1 Setup Request at RRC 2023-10-25 20:22:32 +02:00
Robert Schmidt 23eaea4b8d Move CU-UP related processing to separate file 
A later commit will introduce an RB tree to manage multiple CU-UPs. The
RB tree implementation relies on some macros that generate RB tree
functions. Functions using the RB tree implementation will be grouped in
this file.
 2023-10-25 20:22:32 +02:00
Robert Schmidt f721b13982 Fix: E1 PDU Session has NSSAI, not only SST 2023-10-25 20:22:32 +02:00
Robert Schmidt c3927fa6b7 Fix bug: correct PLMN in check in E1AP Setup Req handler 2023-10-25 20:22:32 +02:00
Robert Schmidt c3f19a4ead Move "UM on default DRB" param to RRC config, make it bool 2023-10-25 20:22:31 +02:00
Robert Schmidt d58ebfcaab Remove unused RRC variables 2023-10-25 20:22:31 +02:00
Robert Schmidt e49608339a Add TODO regarding E1 & reestablishment 
For the reestablishment, we need to tell the PDCP it needs to reset the
SN counters. This does not work over E1; add a TODO in the code.
 2023-10-25 20:22:31 +02:00
Robert Schmidt 4852354dac Correct banner mail 2023-10-25 20:22:31 +02:00
Robert Schmidt 91a30e9a2a Correct return type of do_RRCSetupRequest() 2023-10-10 15:40:26 +02:00
Robert Schmidt 7157e7fd9a Remove unused fields of NR_RRC_MAC_CCCH_DATA_IND message 2023-10-10 15:40:26 +02:00
francescomani 9189129985 Use SRB0 at UE 
- Use SRB0 TM entity at UE for Msg.3/RRC Setup Request
- Msg3 data request sent upon reception of Msg2, then we get data from
  rlc when needed
 2023-10-10 15:40:26 +02:00
Robert Schmidt 653e66594d Merge remote-tracking branch 'origin/f1ap-msg-correction' into integration_2023_w40 2023-10-08 14:56:09 +02:00
Robert Schmidt c3df9c277f Remove warning about new CellGroupConfig 
It is *normal* to receive new CellGroupConfigs from the DU, hence a
warning is not warranted.
 2023-10-08 12:28:30 +02:00
Robert Schmidt d6285354e4 Properly formulate assert message 2023-10-04 14:30:27 +02:00
Robert Schmidt f3910e7707 MeasConfig: give SSB ARFCN, not Point A 
The UE should measure on the SSB, otherwise it does not see anything.
Hence, this commit fixes the meas-config to request the UE to measure
on the right frequency.
 2023-10-03 11:19:09 +02:00
Robert Schmidt 6a7d7e1844 Telnet module to manually/release DRBs of UE 2023-10-02 14:57:03 +02:00
Robert Schmidt 203df298a8 Provide possibility to release DRBs in RRC 
- Currently no fields to store DRB release: need persist in ASN
  structure
- This will be revisited once there is E1 bearer release release
 2023-10-02 14:57:03 +02:00
Robert Schmidt dc64ac3ab3 Rename nr_rlc_release_entity() for consistency 
Most functions start with nr_rlc_*(), so do the same for release
 2023-10-02 14:57:03 +02:00
Robert Schmidt 51862543e4 Rename to nr_pdcp_release_{d,s}rb() for consistency 
Most functions start with nr_pdcp_*(), so do the same for release.
 2023-10-02 14:57:03 +02:00
Robert Schmidt 6a076c8490 F1 UE Context Modif Req: Implement DRB Release 
- Add necessary fields to F1 message
- Add F1AP encoding/decoding of UE Ctxt Modif Req DRB Release
 2023-10-02 14:57:03 +02:00
Robert Schmidt f5cc51b4a8 Merge remote-tracking branch 'origin/NR_UE_RRC_manage_RLC_PDCP' into integration_2023_w38 2023-09-24 17:42:58 +02:00
francescomani cf1baafd75 fixing release according to review 2023-09-22 11:52:24 +02:00
francescomani e7c626a79e release RB entities 2023-09-22 11:40:49 +02:00
francescomani 18892963a9 cleanup and fixes 2023-09-22 11:40:49 +02:00
francescomani 3d824e3958 handling release of RLC entity 2023-09-22 11:40:49 +02:00
francescomani f8464b9e91 MAC configuration of logical channel identities 2023-09-22 11:40:49 +02:00
francescomani 0982bf2683 correctly setting SRB IDs when calling PDCP and code refactoring 2023-09-22 11:40:49 +02:00
francescomani 53348bd41d improving DRB management at RRC UE 2023-09-22 11:40:49 +02:00
francescomani b0b57402f3 managing RLC bearer configuration at RRC UE 2023-09-22 11:40:49 +02:00
francescomani d8cb2491bd improve handling of SRBs at RRC UE 2023-09-22 11:40:49 +02:00
Robert Schmidt 3f46a71157 SCTP assoc_id: Make it sctp_assoc_t, project-wide 2023-09-22 08:22:15 +02:00
Robert Schmidt f5c90ead7e Free DU at CU on lost connection, store assoc ID 
- store the assoc ID of a UE at the RRC
- if F1 receives an SCTP shutdown, it removes the endpoint
- F1 will also send an "F1 Lost Connection" message to the RRC
- it is not yet possible to reconnect a DU after it had already been
  connected at the CU, since the CU F1AP task will try to rebind GTP,
  which fails
 2023-09-22 08:22:15 +02:00
Robert Schmidt 62fd56f904 DCCH free memory 2023-09-22 08:22:15 +02:00
Robert Schmidt 567ab39153 Free RRC UE data 2023-09-22 08:22:15 +02:00
Robert Schmidt 78290f9127 Fix memory leak in rrc_gNB_decode_dcch() 
- Free the memory
- for NGAP NAS UL and NAS First request, allocate memory to avoid
  use-after-free errors
 2023-09-22 08:22:15 +02:00
Robert Schmidt 6f8a222698 Free default MeasConfig 2023-09-22 08:22:15 +02:00
Robert Schmidt 1a09c6eeb0 Fix memory leak in nr_rrc_gNB_decode_ccch() 2023-09-22 08:22:15 +02:00
Robert Schmidt 885a029abc Fix memory leaks in do_NR_DLInformationTransfer() 2023-09-22 08:22:15 +02:00
Robert Schmidt a4c75620ee Fix memory leaks in do_NR_RRCRelease() 2023-09-22 08:22:15 +02:00
Robert Schmidt a3382f8faa Fix memory leaks in do_RRCSetup() 2023-09-22 08:22:15 +02:00
Robert Schmidt 1b171e798d Fix memory leaks in do_RRCReconfiguration() 2023-09-22 08:22:15 +02:00
Robert Schmidt c325c6a232 Correctly free memory in do_NR_SA_UECapabilityEnquiry() 2023-09-22 08:22:15 +02:00
Robert Schmidt c69e8b6895 Clean up do_RRCReconfiguration() 2023-09-22 08:22:15 +02:00
Robert Schmidt 3982cc2e23 Forward UE capabilities to DU and use for CellGroupConfig 
- Forward UE capabilities in F1 handlers
- Store at MAC
- Update CellGroupConfig with UE Capabilities of the UE
 2023-09-22 08:22:15 +02:00
Robert Schmidt 7e2487c294 Handle CellGroupConfig completely at MAC 
- MAC creates CellGroupConfig and sends to RRC
- the RRC does not manually update the CellGroupConfig
- MAC handles the RRC processing timer

In this commit, any updates to the CellGroupConfig previously done at
the RRC don't work. In other words, MIMO etc don't work; this is
implemented in the next commit.

Note that the change to take out spCellConfig during reestablishment is
because after reestablishment, as per spec (38.331 5.3.7.2), the UE
should drop the spCellConfig, which we generate by default on the first
UE connection.

Furthermore, add a new variable apply_cellgroup to signal if, after RRC
processing timer, we wish to apply the CellGroup. In some situations,
e.g., Msg.4 ack, we do not want to apply the CellGroup, because for
instance in reestablishment, we await for a reconfiguration of cellgroup
that would be triggered too early.
 2023-09-22 08:22:15 +02:00
Robert Schmidt 18db5f68ac Put PLMN/TAC/CellID into SIB1, correct CellIdentity encoding 2023-09-22 08:22:15 +02:00
Robert Schmidt c930563929 Move radio configuration parameters to MAC, SIB1 not initialized! 
!SIB1 is not correctly filled! This commit does not work with COTS UEs!
The next commit fixes this.

- Move radio config (e.g., minRXTXTIME, SIB1 TDA, do_SRS, etc) down to
  MAC.
- Some parameters in MAC are redundant: delete them.
- Remove call to nr_mac_config_scc() from RRC and simulators, the MAC
  initialization routine calls it implicitly
 2023-09-22 08:22:15 +02:00
Robert Schmidt a62857a74d Compute SSB ARFCN to repair reestablishment 2023-09-22 08:22:15 +02:00