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Nokia CNCS simplifies cell voice communication


The IP Multimedia System (IMS) is the muse of contemporary voice and messaging in 4G LTE and 5G, and it lies on the very coronary heart of most Communication Service Suppliers’ (CSPs) core networks. A 3GPP normal, the IMS is a framework of dozens of particular person capabilities working from separate utility, management, and transport layer interfaces. 

The IMS is designed for scalability, flexibility, and flexibility. It will probably make the transition to cloud-native core companies as nicely. However the IMS includes many particular person community capabilities. Managing their lifecycles introduces operational complexity at a time when CSPs are targeted on decreasing, not rising, working bills.

Nokia’s resolution for this downside is the brand new Cloud Native Communication Suite (CNCS). The CNCS is a pre-integrated IMS core, managed on the core community as a single Cloud Native Perform (CNF), working predictably, reliably, and with cloud-native scale and adaptability.

“The largest IMS utility operators have immediately remains to be voice. And our clients would love to simplify the operability of the voice core,” explains Jouni Parviainen, Nokia’s Voice over 5G Answer Supervisor. “As a substitute of getting to be specialists in lots of community components, why not function only one?”

Within the CNCS, IMS core capabilities are consolidated into one single community factor. This supplies CSPs with a unified lifecycle administration resolution from begin to end. The CNCS accommodates all beforehand separate IMS community capabilities, together with Session Border Controller (SBC), Name Session Management Perform (CSCF), Telephony Utility Server (TAS) and Media Useful resource operate (MRF). 

These separate community capabilities are carried out as microservices inside a single CNF. Nokia Container Companies (NCS) can present Container as a Service (CaaS) performance for on-premises deployments of CNCS on naked metallic servers. Kubernetes is atthe core of the NCS platform. CNCS supplies a future pathway for CSPs to work with public cloud environments.

The CNCS was developed utilizing Nokia’s personal best-of-breed voice core merchandise, mentioned Parviainen.

“In Nokia we’ve all these community components as merchandise themselves. Now what we’ve performed is inherited the performance of these merchandise into the CNCS,” he mentioned.

Parviainen defined that microservice components had been extracted from these father or mother merchandise, integrating them collectively into the CNCS. Functionalities widespread to particular person community components, akin to database components, have been mixed and streamlined within the CNCS for max effectivity and scalability. 

“We’ve got optimized the interface so there’s a direct connection between microservices, and we implement widespread capabilities simply as soon as,” mentioned Parviainen. 

This simplified IMS operability allows streamlined voice core community operate administration all through the complete lifecycle course of. Exterior interfaces are consolidated, and inner capabilities are pre-integrated. The CNCS implements widespread Diameter dispatcher for all exterior diameter communication, for instance. Comparable IMS Core components might be configured as soon as collectively, as a substitute of requiring separate upkeep and monitoring of every factor, as standalone merchandise require.

The CNCS additionally inherits its standards-based enterprise logic from its father or mother IMS Core merchandise. CSPs are introduced with a single factor supervisor with a novel operational, administration and administration (OAM) interface.

The CNCS employs Zero Contact Companies (ZTS) for widespread operational and repair capabilities, noticed on community as a single factor. Inside, CNCS 3GPP normal interfaces are carried out through the use of direct Session Initiation Protocol (SIP) communication between enterprise logic capabilities (microservices). This fashion SIP visitors contained in the CNCS is optimized between A-SBC, CSCF and TAS capabilities. 

Equally, a standard state database is used to decouple related session data
from the companies logic used. Inner interfaces are abstracted away, leaving normal open interfaces exterior. 

This exposes higher debugging and monitoring capabilities than a standard IMS core, with a single interface used for debugging. In comparison with a typical IMS deployment, CNCS can streamline the method of upgrading voice core community components from days to hours, mentioned Parviainen. 

The outcome: CNCS may help CSPs streamline operational prices by decreasing complexity. As the complete telecom trade appears to be like for methods to enhance vitality effectivity and sustainability, CNCS supplies a profit: It gives related performance to a standard IMS, however with 10-20 % decrease {hardware} vitality consumption.

Telecom is experiencing the identical digital transformation effort as so many different international industries. As CSPs transfer more and more to cloud-native operations in addition they should cope with sunsetting 2G and 3G networks. On the identical time, CSPs are below monumental strain to enhance decrease operational prices and enhance capital bills.

The CNCS supplies a path which gives operators improved effectivity and standards-based administration utilizing the facility of open Utility Programming Interfaces (APIs). As a cloud-native operate, the CNCS supplies additionally CSPs with extra flexibility than ever earlier than, whether or not it’s to increase present voice companies, change, or launch new special-use companies on present 4G and 5G networks.

The CNCS delivers core voice, messaging and multimedia, carried out collectively to behave as a single product optimized for 4G, 5G, mounted and Wi-Fi deployments. This will helps CSPs obtain decrease operational prices with streamlined lifecycle administration: shorter set up and improve occasions, improved visibility and monitoring, and sooner deployment and configuration.

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