This folder contains the software for layer 1 of the OpenAirInterface eNB and UE as well as the unitary simulators
|-- PHY // contains all signal processing related to physical layer (used in real-time AND simulation)
General remarks: every directory contains at least defs.h (for declaration of structure and functions), vars.h (for definitions of variables), and extern.h (variables are defined only once in xxx-softmodem.c (for real-time HW operation) or a top-level simulation (in SIMULATION/xxx), if variables are needed in another file, use extern.h)
| |-- CODING // turbo and convolutional (de-)coders, rate-matching, crc generation (implementation of 36-212)
| | `-- TESTBENCH // This contains unitary testbenches for the different channel coders/decoders
| |-- INIT // variables defined in vars.h are initialzed here (memory allocation)
| |-- LTE_ESTIMATION // estimation for LTE
| |-- LTE_REFSIG // reference signals for LTE (sync and pilot sequences) reference signals from 36-211
| |-- NR_REFSIG // reference signals for NR (sync and pilot sequences) reference signals from 38-211
| |-- LTE_TRANSPORT // these are the top level routines for different transport and physical channels (for example DL-SCH, PSS) implements a subset of 36-211,36-212
| |-- LTE_UE_TRANSPORT // these are the top level routines for different transport and physical channels (for example DL-SCH, PSS) implements a subset of 36-211,36-212
| |-- NR_TRANSPORT // these are the top level routines for different transport and physical channels (for example DL-SCH, PSS) implements a subset of 38-211,38-212
| |-- NR_UE_TRANSPORT // these are the top level routines for different transport and physical channels (for example DL-SCH, PSS) implements a subset of 38-211,38-212
| |-- NBIoT_TRANSPORT // these are the top level routines for different transport and physical channels for NB-IoT
| |-- MODULATION // modulation and demodulation includes FFT/SC-FDMA front-end processing from 36-211
| |-- TOOLS // tools like (I)FFT, vector operations, matrix multiplication, etc.
| | `-- FFTTEST // unitary testbench for FFT routines
| |-- defs.h // top level defs.h (includes spec_defs, impl_defs and all defs.h of subdirectories)
| |-- extern.h
| |-- impl_defs.h // non-LTE openair implementation
| |-- impl_defs_top.h // general implementaion defs
| |-- spec_defs.h
| |-- spec_defs_top.h
| |-- types.h
| `-- vars.h
|-- SCHED // schedules the different LTE eNB functions
| |-- defs.h
| |-- extern.h
| |-- phy_procedures_lte_eNb.c // LTE PHY procedures for eNB (from 36-213)
| |-- phy_procedures_lte_common.c // LTE PHY procedures common for UE and eNB (from 36-213)
| |-- prach_procedures.c //LTE PRACH procedures (from 36-213)
| |-- ru_procedures.c //RU procedures
| |-- fapi_l1.c //L1 side of the FAPI interface
| |-- phy_mac_stub.c //MAC stub that generates channels when used in phy-test-mode
| |-- rt_compat.h
| `-- vars.h
|-- SCHED_UE // schedules the different LTE UE functions
| |-- phy_procedures_lte_ue.c // LTE PHY procedures for UE (from 36-213)
| |-- pucch_pc.c // power control for PUCCH
| |-- pusch_pc.c // power control for PUSCH
| |-- srs_pc.c // power control for SRS
|-- SCHED_NB_IOT // same as above for NB-IOT
|-- SCHED_NR // same as above for NR gNB
|-- SCHED_NR_UE // same as above for NR UE
|-- SIMULATION // contains simulation routines to test PHY
| |-- LTE_PHY // LTE simulation testbenches for unitary simulation of transport/physical channels
| | |-- pbchsim.c // PBCH simulation testbench
| | |-- pdcchsim.c // PCFICH/PHICH/PDCCH (DCI) simulation testbench
| | |-- dlsim.c // PDSCH simulation testbench
| | |-- ulsim.c // PUSCH simulation testbench
| | |-- pucchsim.c // PUCCH simulation testbench
| |-- RF // RF simulation tools
| |-- ETH_TRANSPORT
| `-- TOOLS
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