Use F1 internally: RRC Message Transfer

First MR in a series of changes to use the F1 interface internally at the gNB.

• RRC Reject not handled yet via F1 message exchange
• Removes ITTISIM (which does not compile)
• Refactors code duplication of linear allocator of gNB/eNB RRC

added 5G-NR label

requested review from @Cedric.Roux

assigned to @lthomas

marked this merge request as draft

added 117 commits

• 104dd3fd...d11350c0 - 110 commits from branch develop
• 961b1af2 - Use F1 DL RRC message transfer internally for RRCSetup
• 6de415fb - Add MAC-RRC UL stubs for F1AP and direct
• 6c156921 - Do not initialize MAC multiple times
• 36010ff5 - Refactor linear allocator from LTE/NR; separate LTE/NR headers
• 912938ec - Delete ITTI-SIM
• 1d71f44e - Transfer Initial UL RRC Message through internal F1
• 0bfcacfd - gNB RRC: handle F1AP_UL_RRC_MESSAGE

Compare with previous version

marked this merge request as ready

changed title from Draft: Use F1 internally: RRC Message Transfer to DUse F1 internally: RRC Message Transfer

changed the description

changed title from DUse F1 internally: RRC Message Transfer to Use F1 internally: RRC Message Transfer

changed title from Use F1 internally: RRC Message Transfer to WIP: Use F1 internally: RRC Message Transfer

changed title from WIP: Use F1 internally: RRC Message Transfer to Use F1 internally: RRC Message Transfer

added 4G-LTE label

OAI RAN-CI-develop build (3371): Merge Conflicts -- Cannot perform CI

OAI RAN-CI-develop build (3371): failed (https://open5glab.eurecom.fr:8083/jenkins/job/RAN-CI-develop/3371/)

changed milestone to %REVIEW_CAN_START

OAI RAN-CI-develop build (3373): Some Changed files in Merge Request DO NOT follow OAI Formatting Rules

OAI RAN-CI-develop build (3373): Some modified files in Merge Request MAY have INTRODUCED WARNINGS (openair2/RRC/NR/MESSAGES/asn1_msg.c)

OAI RAN-Container-Parent build (1987): failed (https://jenkins-oai.eurecom.fr/job/RAN-Container-Parent/1987/)

OAI RAN-CI-develop build (3373): failed (https://open5glab.eurecom.fr:8083/jenkins/job/RAN-CI-develop/3373/)

added 344 commits

• 0bfcacfd...5bf454c7 - 337 commits from branch develop
• 14529aa2 - Use F1 DL RRC message transfer internally for RRCSetup
• e548714b - Add MAC-RRC UL stubs for F1AP and direct
• 324ab08f - Do not initialize MAC multiple times
• 7c042f84 - Refactor linear allocator from LTE/NR; separate LTE/NR headers
• 8cd57b80 - Delete ITTI-SIM
• 0f5f3597 - Transfer Initial UL RRC Message through internal F1
• ad735d43 - gNB RRC: handle F1AP_UL_RRC_MESSAGE

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resolved all threads

OAI RAN-CI-develop build (3417): Some Changed files in Merge Request DO NOT follow OAI Formatting Rules

OAI RAN-CI-develop build (3417): failed (https://open5glab.eurecom.fr:8083/jenkins/job/RAN-CI-develop/3417/)

OAI RAN-Container-Parent build (2031): failed (https://jenkins-oai.eurecom.fr/job/RAN-Container-Parent/2031/)

added 75 commits

• ad735d43...5ea828e1 - 68 commits from branch develop
• 076b0c6c - Use F1 DL RRC message transfer internally for RRCSetup
• a2e27fd8 - Add MAC-RRC UL stubs for F1AP and direct
• 4b00b029 - Do not initialize MAC multiple times
• b312fa8c - Refactor linear allocator from LTE/NR; separate LTE/NR headers
• 00a35aba - Delete ITTI-SIM
• e77b5e88 - Transfer Initial UL RRC Message through internal F1
• 68f840cd - gNB RRC: handle F1AP_UL_RRC_MESSAGE

Compare with previous version

OAI RAN-CI-develop build (3492): Some Changed files in Merge Request DO NOT follow OAI Formatting Rules

OAI RAN-Container-Parent build (2105): failed (https://jenkins-oai.eurecom.fr/job/RAN-Container-Parent/2105/)

OAI RAN-CI-develop build (3492): failed (https://open5glab.eurecom.fr:8083/jenkins/job/RAN-CI-develop/3492/)

added 412 commits

• 68f840cd...6d030ea2 - 405 commits from branch develop
• 9735a8b0 - Use F1 DL RRC message transfer internally for RRCSetup
• 977ff7e7 - Add MAC-RRC UL stubs for F1AP and direct
• 83c85fbc - Do not initialize MAC multiple times
• 29662065 - Refactor linear allocator from LTE/NR; separate LTE/NR headers
• 9c1a89a1 - Delete ITTI-SIM
• 70b99ee8 - Transfer Initial UL RRC Message through internal F1
• 02e625d9 - gNB RRC: handle F1AP_UL_RRC_MESSAGE

Compare with previous version

OAI RAN-CI-develop build (3620): Some Changed files in Merge Request DO NOT follow OAI Formatting Rules

OAI RAN-Container-Parent build (2252): failed (https://jenkins-oai.eurecom.fr/job/RAN-Container-Parent/2252/)

OAI RAN-CI-develop build (3620): failed (https://open5glab.eurecom.fr:8083/jenkins/job/RAN-CI-develop/3620/)

@Cedric.Roux you can start/finalize the review of this one.

added 25 commits

• 02e625d9...50916825 - 18 commits from branch develop
• 8c84e19e - Use F1 DL RRC message transfer internally for RRCSetup
• c09e19cb - Add MAC-RRC UL stubs for F1AP and direct
• 334608c0 - Do not initialize MAC multiple times
• b6e5e398 - Refactor linear allocator from LTE/NR; separate LTE/NR headers
• d6427624 - Delete ITTI-SIM
• 83270fdd - Transfer Initial UL RRC Message through internal F1
• 571cd06f - gNB RRC: handle F1AP_UL_RRC_MESSAGE

Compare with previous version

OAI RAN-CI-develop build (3651): Some Changed files in Merge Request DO NOT follow OAI Formatting Rules

OAI RAN-CI-develop build (3651): failed (https://open5glab.eurecom.fr:8083/jenkins/job/RAN-CI-develop/3651/)

OAI RAN-Container-Parent build (2282): passed (https://jenkins-oai.eurecom.fr/job/RAN-Container-Parent/2282/)

mentioned in merge request !1613 (merged)

changed milestone to %REVIEW_IN_PROGRESS

works with accelleran + cumucore + cots ue

Code Review by: Cédric Roux

• IMPACT on FUNCTIONAL CODE
  • The code change does respect architecture/protocol split
  • Abnormal exits are properly handled
  • Coding Style Issues
    • Added DEAD Code
    • Improper logging
    • Added useless debug code
    • Duplication of an existing function
    • Indentation is not respected
    • Insufficient in-code comments / code readability
    • Any other coding style issue
  • A new tool/lib/package has been introduced (blocking, subject to negotiation)
• TESTING (The Merge Request requires additional testing)
  • Additional testing is present in the Merge Request (Best)
  • The contributor provides a framework/hints for testing
  • New testing means need to be developed
• DOCUMENTATION (The Merge Request requires additional documentation)
  • Feature Set documentation update needed
    • DONE
    • NOT DONE
  • Wiki tutorial / in-repo usage documentation needed
    • DONE
    • NOT DONE
  • Added/Modified/Removed script/build/runtime option(s)
    • Help UPDATED
    • Help NOT UPDATED

Recommendations:

looks fine. openair du + accelleran cu + cumucore core + cots ue is as functional as it is with develop (plus some hacks I will cleanup soon).

This should be rebased on top of develop, there are some minor conflicts.

If the CI is ok for the rest of the system, then: good to go.

changed milestone to %REVIEW_COMPLETED_AND_APPROVED

added 234 commits

• 571cd06f...4154e9e9 - 227 commits from branch develop
• f75cdbca - Use F1 DL RRC message transfer internally for RRCSetup
• f52809a8 - Add MAC-RRC UL stubs for F1AP and direct
• 0c9006ec - Do not initialize MAC multiple times
• 52dbc6fe - Refactor linear allocator from LTE/NR; separate LTE/NR headers
• a126cd12 - Delete ITTI-SIM
• 18a68387 - Transfer Initial UL RRC Message through internal F1
• 9622a56b - gNB RRC: handle F1AP_UL_RRC_MESSAGE

Compare with previous version

OAI RAN-CI-develop build (3832): Some Changed files in Merge Request DO NOT follow OAI Formatting Rules

OAI RAN-Container-Parent build (2458): failed (https://jenkins-oai.eurecom.fr/job/RAN-Container-Parent/2458/)

OAI RAN-CI-develop build (3832): failed (https://open5glab.eurecom.fr:8083/jenkins/job/RAN-CI-develop/3832/)

changed title from Use F1 internally: RRC Message Transfer to WIP: Use F1 internally: RRC Message Transfer

changed title from WIP: Use F1 internally: RRC Message Transfer to Use F1 internally: RRC Message Transfer

OAI RAN-CI-develop build (3835): Some Changed files in Merge Request DO NOT follow OAI Formatting Rules