There is already a command line option called 'ue-scan-carrier' which seemed to blindly look for SSB by changing the center frequency by +/-100Hz if the previous attempt failed. This is probably copied from LTE and is not suitable for NR. This commit uses this option to either 1. Perform initial sync on one GSCN if the SSB position if known 2. Or scan the all GSCN (if the SSB postion is unknown) Also, the following is done for re-synchronization 1. Scan all GSCN when UE comes back from IDLE state 2. Scan one GSCN when UE does re-estabishment Removed dependency of lte-softmodem.h in nr-softmodem.c. CONFIG_HLP_UESCAN is declared also in lte-softmodem.h.
This directory contains the NFAPI code.
It comes in two parts:
1 - open-nFAPI
This is a clone of the github repository
(https://github.com/cisco/open-nFAPI,
commit b3bc579b1697eab829d5d8a2de59c93a61b88fa4).
The patch open-nfapi.oai.patch has then been applied.
2 - oai_integration
This is code written by David Price from Cisco to integrate
open-nFAPI into OpenAirInterface.