YESDR – Current Implementation Status¶

1. YESDR Core Network¶

Component / Function	Completed	To Be Done
Core Network Functions (YNRF, YAMF, YCRF, YRMF, YAUSF, YUDM, YUDR, YPCF, YSMF, YUPF, YNSSF)	Implemented as independent modules	Optimization and full inter-function validation
SBI Interface	FastAPI-based SBI implemented	Standard compliance refinement
Inter-Module Communication	FastAPI-based communication	Error recovery and robustness
YACP Interface	Implemented for YBS communication	Initial four protocol messages
YSMP Interface	Implemented for YSM communication	Full message coverage
Spectrum Scanning	Spectrum scanning implemented	Advanced scanning strategies
Resource Allocation	Allocation based on frequency occupancy	Policy-driven dynamic allocation
Authentication	5G-AKA implemented	NAS-level enhancements
Key Management	User database with keys	Secure key lifecycle management
Subscriber Data	Data retrieval from YUDR	Full synchronization with central DB
Policy Control (YPCF)	Policy reporting and modification	Advanced policy enforcement
User Plane Control	PFCP with YUPF implemented	Failure recovery handling
Uplink / Downlink	TEID-based handling implemented	QoS-aware routing
Database	PostgreSQL implemented	MongoDB as central database
Heartbeat Monitoring	Basic heartbeat support	Failure-based cleanup
IP Routing	–	To be implemented

Protocol / Feature	Completed	To Be Done
YACP	Core messages implemented	First four protocol messages
YSMP	Setup, response, report	Full protocol coverage
GTP	Uplink and downlink	Dynamic source IP handling
PFCP	Heartbeat, association request/response	UPF failure detection
Security	5G-AKA implemented	Encryption & integrity protection
Message Modification	Basic support	Improved modification handling
Wireshark Dissector	Generated and functional	Complete message coverage
NAS Signaling	–	Full NAS implementation

Layer	Completed	To Be Done
PHY	BPSK downlink (User Plane)	BPSK downlink control plane
PHY	–	BPSK uplink (Control & User Plane)
MAC	CRC, segmentation	Scheduling, MAC headers
RLC	Basic framework	AM, TM, UM modes
PDCP	Basic processing	NAS-based encryption (Kupenc)
SDAP	–	QoS flow mapping
RRC	–	Full RRC signaling
FEC	Coding and decoding	Performance optimization
Security	Hard-coded key (initial)	Dynamic key usage

Feature	Completed	To Be Done
Protocol Stack	Implemented	Validation with full core
Control Messages	–	First four protocol messages
Core Integration	Partial	Full end-to-end testing

Feature	Completed	To Be Done
Handover	–	Intra- and inter-cell handover
AMF–AMF Communication	–	Full support
gNB–gNB Communication	–	Xn-like interface
Mobility Management	–	End-to-end mobility handling

Feature	Completed	To Be Done
Spectrum Sensing	Spectrum sensing from 600 MHz to 6 GHz	AI-asssted accuracy optimization and multi-band correlation
Signal Energy Detection	Real-time energy-based sensing	Adaptive thresholding
Modulation Classification	–	AI/ML-based modulation classification
Channel Prediction	–	ML/DL-based channel quality prediction
Channel ON/OFF Prediction	–	Traffic-aware channel ON–OFF duration prediction
Model Deployment	–	Edge deployment (MEC / SDR embedded)
Real-Time Inference	–	Low-latency inference optimization
Visualization	Basic plots	AI-driven spectrum occupancy maps