- the new option -k allows to skip the built of shared libraries, rfsimulator
basicsimulator and transport protocol libraries
- default compilation remains untouched as is still building all libraries
- this option allows to save a massive amount of time when compiling
repeatedly for debugging purposes
- introduced new parameter in nr_ue_dl_indication for UL time alignment
- moved TA timer logic one level up so that now is executed every slot
- set timer value to 80 slots to cope with the sl_ahead design
- introduced new TA-related members to gNB MAC instance struct
- UE processing capability 1
- Setting the TA update to be applied after the reception of the TA command
- Durations of N1 and N2 symbols corresponding to PDSCH and PUSCH are
computed according to sections 5.3 and 6.4 of TS 38.214
- Introduced tables 5.3-1, 5.3-2, 6.4-1, 6.4-2 from TS 38.214
- ta_timer at gNB side to control the transmission of TA to the UE. This is now happening every 20 slots.
- when the timer resets gNB is now transmitting the TA whether it is zero or not.
- introduced struct NR_UL_TIME_ALIGNMENT_t to handle configuration of time alignment related parameters.
- UE PHY RX: is now triggered through a flag when to store the TA command, the frame and slot
when the application should occur.
- UE PHY TX: when the tx frame and slot match the time alignment configuration, it process the TA command and applies the
TA update
- "nr_process_timing_advance": TA to be applied is commented out, need to be uncommented
- with introduced delay of 50 in rx_rf, TA update should be 34 in MAC CE
but this does not occur when ta is applied at UE side according to standard
- introduced ULSCH scheduler and NR RX SDU functions
- fixes to logic in UL fill RX indication
- added crc indication in UL RX
- temporary hardcoded UE_id to 0, rnti not considered in the logic
- Initial gNB DLSCH and UE spec scheduling implentation
- MAC PDU generation (including header as per TS 38.321)
- MAC PDU processing at UE side with extracion of TA updates
- General code cleanup
- Introduced NR MAC COMMON folder, moved common files here
- command line paramter --clock-source can only be set at UE (removed this option from gNB)
- at gNB use clock_source from RU section in config file
- in both cases if clock_source is present in usrp_args, it will override clock_source
Guido Casati