SrsLTE Versions Save

• Fixed srsUE to work with 5/10/15/20 MHz bandwidth in 5G SA mode.
• Added a new frequency estimation algorithm.
• Updated cmake file.
• Other bug-fixes and improved stability and performance in all parts

• Hotfix applying of dedicated PUSCH and PDSCH DMRS configuration

• Introduced configurable s1 connection timer
• Updated 4G RRC ASN.1 to Rel 17
• Added reestablishment support during S1-Handover
• Added basic support for NSSAI based slicing in UE & gNodeB
• Updated the RRC to enable srsUE compatibility with new srsgnb
• Updated eMBMS to fix various outstanding issues
• Added basic support for RIC E2 interface
• other bug-fixes and improved stability and performance in all parts

• Fix DL NAS integrity checks in srsUE
• Remove Travis and LGTM as CI platforms
• Remove polarssl as optional dependency (only mbedTLS used and required for security)
• Allow to specify multiple PLMNs in SIB1
• Allow non-blocking S1AP connect and expose various other SCTP options
• Add support to broadcast MAC backoff indicator
• Seperate T300/T301 timer in srsENB
• Fix in eMBMS payload buffer handling
• Fix memleak in NR scheduler

• Various bug fixes in RLC AM and PDCP for NR
• Fix crash when UE attempted to reestablish in SA
• Remove fixed coreset0 index for SSB
• Add support for SIB5 and SIB6 transmission in LTE

• Added baseline 5G-SA support to srsUE and srsENB
• Added dynamic loading of RF libraries
• Added RRC Redirect to srsUE
• Added support for A5 measurement events to srsENB
• Added Crest Factor Reduction (CFR) for srsENB downlink and srsUE uplink (4G only)
• Raise C++ standard to C++14
• Other bug-fixes and improved stability and performance in all parts

• Add initial 5G NSA support to srsENB (tested with OnePlus 5G Nord)
• Improved interoperability of srsUE in NSA mode
• Added enhanced instrumentation to file using JSON format
• Fixed stability issues with Ettus N310
• Added BLER-adaptive MCS scheduling to srsENB
• Other bug-fixes and improved stability and performance in all parts

• Rename project from srsLTE to srsRAN
• Add initial 5G NSA support to srsUE (including x86-optimized FEC and PHY layer)
• Add PDCP discard support
• Add UL power control, measurement gaps and a new proportional fair scheduler to srsENB
• Extend GTP-U tunneling to support tunnel forwarding over S1
• Optimize many data structures, remove dynamic memory allocations in data plane
• Improved S1AP error handling and enhanced event reporting
• Update ASN.1 packing/unpacking, RRC to Rel 15.11, S1AP to Rel 16.1
• Update PCAP writer to use UDP framing
• Other bug-fixes and improved stability and performance in all parts

In addition to https://github.com/srsran/srsRAN/releases/tag/release_21_04_pre:

• Fixed E-RAB to DRB mapping, especially handling for E-RAB IDs > 12
• Fixed crash when UL info transfer is received for invalid S1AP ID
• Fixed compilation on some 32bit machines, e.g. RPi2 and above

• Rename project from srsLTE to srsRAN
• Add initial 5G NSA support to srsUE (including x86-optimized FEC and PHY layer)
• Add PDCP discard support
• Add UL power control, measurement gaps and a new proportional fair scheduler to srsENB
• Extend GTP-U tunneling to support tunnel forwarding over S1
• Optimize many data structures, remove dynamic memory allocations in data plane
• Improved S1AP error handling and enhanced event reporting
• Update ASN.1 packing/unpacking, RRC to Rel 15.11, S1AP to Rel 16.1
• Update PCAP writer to use UDP framing
• Other bug-fixes and improved stability and performance in all parts

• Fix bug in srsENB that effectively disabled UL HARQ