YateUCN is a powerful equipment in the Core Network, it handles both VOICE and DATA for the Telecom network, regardless of the used radio technology.
Unified EPC/IMS core network
YateUCN is a unified core network solution intended for new LTE networks, for upgrading GSM/GPRS networks to LTE or for extending existing LTE networks.
The YateUCN software-defined core implements all the functions and protocols of the LTE core network in software, and uses commodity hardware (e.g. Dell PowerEdge R430).
YateUCN integrates the EPC layers – MME, PGW, SGW, and PCEF and also includes the IMS layers for VoLTE – PCSCF, ISCSCF, IWF, and BGW.
It communicates with the YateENB (LTE eNodeB module) over S1AP and GTP protocols and uses a JSON API for configuration and management.
Unified GSM/GPRS core network
YateUCN also implements the functions and protocols of GSM/GPRS core networks. In GSM/GPRS, the YateUCN acts as a MSC/VLR/SGSN/GGSN/GMSC in a single server.
It connects to the YateBTS (GSM module) over GTP and SIP, replacing the 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 unified core network solution is based on replacing the eNodeB with the YateENB (LTE) and the base station subsystem with the YateBTS (GSM).
Many areas in the world are not covered by a cellular network due to the cost of existing circuit-switched network technology.
YateUCN brings a new solution for deploying GSM/LTE networks at a lower cost.
YateUCN only supports the following codecs of the ITU-T standard, G.711 [also titled as Pulse code modulation (PCM) of voice frequencies]:
- A-law (PCMA, G.711A)
- μ-law (PCMU, G.711U)
YateUCN, the Unified LTE/GSM/GPRS Core Network
This section contains information about the unified YateUCN.
YateUCN as an MME/SGW
This section contains information about configuring YateUCN’s MME and SGW functions.
YateUCN as an GGSN/PGW
This section contains information and configuration examples used for charging functions.
YateUCN as MSC/VLR
This section contains information about the usage of YateUCN as MSC/VLR.
YateUCN as an IMS
This section contains information about configuring YateUCN for IMS
Miscellaneous YateUCN features
|Revision number||Time since commit||Commit message|
|5607||6m||Small bug fix: allow setting ocs_error_retry interval to 0 so that we can disable it.|
|5605||20h 51m|| Add option to continue a PGW session when OCS fails with specific error.|
OCS will be contacted again periodically.
|5578||15d 21h||Lower debug level in PGW for 'noresource' error received from OCS.|
|5577||15d 21h||Lowered debug level for diametr charging credit limit reached and credit not applicable errors. Added configurable parameters allowing raising it.|
|5558||27d 20h||Yate OpenSSL module was declared twice. Fixed|