The YateUCN is a unified core network solution intended for new GSM/GPRS/LTE networks, for upgrading GSM/GPRS networks to LTE, or for extending existing networks.

The YateUCN software-defined core implements all the functions and protocols of GSM/GPRS and LTE core networks in software, and uses commodity hardware. The YateUCN integrates the Mobile Switching Center / Visitor Location Register / Serving GPRS Support Node / Gateway GPRS Support Node / Gateway MSC (MSC/VLR/SGSN/GGSN/GMSC) nodes from the GSM/GPRS core network, and the SAE/VoLTE layers from the LTE network in a single server.

The unified core network solution is based on replacing the base station subsystem with the YateBTS (GSM) and the eNodeB with the YateENB (LTE). The YateUCN communicates with the YateBTS/YateENB using the SIP/S1AP/GTP protocols, instead of the more costly SS7 MAP-A interface (BSSAP protocol). This leads to a higher return on investment without affecting the reliability of the network or the provided services.

The YateUCN uses a JSON API for configuration and management.

Features and benefits
Runs on commodity hardware, allowing for a simplified network architecture and lower deployment costs.

Enables carriers to deploy LTE networks with reduced initial investment.

Allows for scaling as you go. You can add more servers or separate the functionality as more users adopt your service.

Increases network resiliency; in case of equipment failure you can easily configure another server to take up the functions of the fault node.

The SIP protocol establishes connection between the YateUCN and the YateBTS, allowing the SatSite base station to communicate with any YateUCN in the network. A Base Station Controller (BSC) is not needed between the YateBTS-powered SatSite and the YateUCN.

Has low idle traffic, which allows transport technologies like satellite.
Software specifications
Hardware specifications
SS7 connectivity- SIGTRAN, SCTP with CRC checksum
- M2UA, M2PA, M3UA
- ITU MAP v3
- CAMEL phase 2
Voice interconnect- SIP and RTP
- ISUP using external MGCP gateway
- E.214 (ITU) translation table
- E.164
- Supported operations:
  - MSC <-> AuC messages (authentication)
  - MSC <-> EIR messages (equipment identification, optional)
  - VLR <-> HLR messages (location management, roaming)
  - MSC <-> SMSC messages (SMS)
- S1AP r11
- GTP v1
- Supported operations:
   - SGSN <-> AuC messages (authentication)
   - SGSN <-> EIR messages (equipment identification, optional)
   - SGSN <-> HLR messages (data mobility management, roaming)
   - SGSN <-> GGSN messages (data session)
   - YateENB <-> SGSN messages (LTE control and user data)
   - YateBTS <-> SGSN messages (GPRS control and user data)
SIP- Supported standards (RFC3261)
- Registrar function
- B2BUA for calls
- RTP (RFC3550) with sideband DTMF (RFC2833)
- SMS and USSD over IP
SMS- Format: SMS PDU (MO and MT)
- MAP/SS7 transport (T-PDU format)
- SIP MESSAGE transport (SMS over IP, R-PDU format)
CDR- File format
- Rotation interval
- File transfer: FTP
Interfaces- C Interface (MAP, HLR <-> GMSC)
- D Interface (MAP, HLR <-> VLR)
- E Interface (MAP, MSC <-> MSC)
- F Interface (MAP, MSC <-> EIR)
- G Interface (MAP, VLR <-> VLR)
- SIP, RTP (YateBTS <-> VLR)
- S1 Interface (S1AP & GTP, YateENB <-> EPC)
- Gi Interface (IP, connects to Public Data Network)
- Gn/Gp Interface (GTP, SGSN and GGSN)
- Gr Interface (MAP, SGSN <-> HSS)
- Gc Interface (GTP or SS7/MAP, interface to HLR) (optional)
CODECS and transcoders- G.711a, G.711u
- GSM-FR 06.10
- iSAC
- iLBC
Operating systemLinux based
Dell PowerEdge R4303.5" Chassis with up to 4 Cabled Hard Drives
ProcessorIntel Xeon E5-2630 v3 2.4GHz,20M
Memory8GB RDIMM, 2133MT/s, Dual Rank, x8 Data
Hard drives1TB 7.2K RPM SATA 6Gbps 3.5in Cabled Hard
Hard drive configurationRAID 1 for H330/H730/H730P (2 HDDs) with Cabled Chassis
Internal controllerDVD ROM SATA Internal for 4HD Chassis ReadyRails Sliding Rails With Cable
Power supply550W
Network adapterIntel Ethernet I350 DP 10Gb Server Adapter, Low Profile
Related resources
Integrate YateUCN in existing networks

Core network redundancy

Roaming with the YateUCN

Unified LTE core

LTE core network solution