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UnionCore uCP

Genew UnionCore unified Control Plane (uCP) consists of EPC and 5GC network elements of control plane, they are MME, GW-C, AMF, SMF, NRF, NSSF, that they are all based on 3GPP standard and ETSI NFV standard, each of them can be solely deployed as standalone VNF or convergently deployed as a unified product but representing multiple responsibilities.
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  • UnionCore uCP
  • GENEW

Overview:

Genew UnionCore unified Control Plane (uCP) consists of EPC and 5GC network elements of control plane, they are MME, GW-C, AMF, SMF, NRF, NSSF, that they are all based on 3GPP standard and ETSI NFV standard, each of them can be solely deployed as standalone VNF or convergently deployed as a unified product but representing multiple responsibilities.

Genew UnionCore is designed for enhanced Mobile Broadband (eMBB), massive Machine Type Communication (mMTC), ultra Reliable Low Latency Communication (uRLLC) application scenarios etc., providing high speed data, network slicing, mobile edge computing, on-demand mobility, capability openness and other representative service solutions in 4G and 5G. Genew UnionCore leverages NFV and Cloud technologies to simply operators’ network and maximize IT resources, and helps operator establish an end-to-end core network architecture to confront business challenges and technical challenges with simplicity, high quality and low TCO solution.


Product Architecture:

The system architecture of uCP is based on the standard ETSI NFV architecture. The main functional components can be deployed as VNFs on the virtual infrastructure and managed by the cloud platform. The system architecture of uCP is shown in the figure below:

uCP Arch


Genew UnionCore uCP is developed based on the idea of atom-level convergence, that means, not only the system is disaggregated into different modules, each module is a totally standalone Virtualized Network Function Component (VNFC) that could be deployed in a VM or Container, but also for both 4G and 5G signaling, are dealt within the unified Mobility Management (MM) module and unified Session Management (SM) module.


The module functions are described in the table below:

Module

Category

Description

RDB

Memory database

The RDB   stores the user context with connections, parameters and states or the   Network Function parameters. It is based on Redis DB, Redis DB is an   opensource memory database with extraordinary performance and fertile   functions.

OMU

O&M

The OMU is the Operation   and Management Unit, provides routine FCAPS maintenance operation.

SBI

Interface

The SBI deals   with the service-based interfaces, especially the HTTP2 layer with load   balancing function.

S1AP

Interface

The S1AP deals   with the interface between MME and eNB.

NGAP

Interface

The NGAP deals   with the interface between AMF and gNB.

MM

Service

The MM deals   with the EPS NAS and 5GS NAS messages and also performs as a load balancer   for those signaling.

SPU-MM

Service

The SPU-MM   is the service processing unit of MME and AMF, it provides functions of attach/registration,   authentication, service request, handover, tracking area update and paging   etc.

N4

Interface

The N4 deals   with the interface between SMF and UPF.

SM

Service

The SM   deals with the EPS NAS SM messages and 5GS NAS SM messages and also performs   as a load balancer for those signaling.

SPU-SM

Service

The SPU-SM is the   service processing unit of GW-C and SMF, it provides functions of session   management, policy control, QoS management, UE IP management and GW-C/UPF selection   etc.

SPU-NRF

Service

The SPU-NRF   is the service processing unit of NRF, it provides the registration and   discovery functions for other network functions.

SPU-NSSF

Service

The SPU-NSSF is   the service processing unit of NSSF, it provides the network slice selection   function.

IPU

Service

The IPU is   the IP processing unit transmits the signaling and messages with load balance   function.

EMS

O&M

The EMS consists   of NEs’ O&M Agents and a Web Server to provide Browser & Server   O&M architecture, and it also includes part of MANO’s functions like NFVO   and VNFM. Its name is NuMax Cloud.


So, when there needs a single NE to be deployed separately, the architecture is like the figure below:

uCP VNF

Highlights:

  • Atom-level Convergence

Genew UnionCore including uCP is developed based on the idea of atom-level convergence, that means, not only the system is disaggregated into different modules, each module is a totally standalone Virtualized Network Function Component (VNFC) that could be deployed in a VM or Container, but also for both 4G and 5G signaling, are dealt within the unified Mobility Management (MM) module and unified Session Management (SM) module.

This improves the system integration for a single user only occupies one resource not matter what access type is. This also improves the service quality when user switching between 4G and 5G, for all the interworking operations between MME and AMF become inner procedures.

  • Stateless Architecture

Genew UnionCore products including uCP are all based on the standard ETSI NFV architecture, inside those products, there are different modules, such as, RDB as the database stores the users’ context and status, SPU as the service processing unit deals with specific services, including interface processes to deal with different interfaces of each Network Element. And this design actually separates the data layer from the service logic layer, the service logic layer doesn’t contain any key data such as user context, user status and interface context etc.

The stateless architecture enhances the system reliability, the failure of one service processing unit of service logic layer will be recovered quickly without any service impact, for the key data is stored in data layer, in the RDB, and other normal service processing unit will fetch the data from RDB to continue current service. This also facilitates scale-in, scale-out and upgrade of the system.

  • Service Based Architecture

Genew UnionCore including uCP is based on the Service Based Architecture (SBA) defined in 3GPP R15, supports all standard Service Based Interfaces. The architecture defines multiple microservice components for Network Functions(NF), and provides converged access and mobility/session management in an open, agile, flexible and extensible manner.

  • Virtualization

The ETSI NFV architecture supports three-layer decoupling: software layer, virtualization layer and hardware layer. Genew UnionCore products including uCP are all based on the standard ETSI NFV architecture, they can run on universal Cloud OS systems and Commercial-Off-The-Shelf (COTS) servers and provide carriers with flexible and economical elastic network solutions. Each application and each operating system run on independent Virtual Machines (VMs) or applications run on independent Containers. By sharing virtualized hardware resources, the Genew UnionCore optimizes hardware resource utilization and reduces the types of hardware in use, which enables carriers to quickly respond to market changes.

  • Scalability

Genew UnionCore with its MANO solution supports dynamic expansion or contraction of various capacities based on the system load, such as the number of concurrent users and CPU capacity. This ensures efficient resource utilization and complies with the concept of energy saving and emission reduction.

  • Cloud Native

Genew UnionCore adopts the Service Based Architecture, there are different microservices like RDB/SPU/OMU/SBI units inside of the system, and they could be deployed on Virtual Machines or Containers, to achieve the elastic scaling capabilities and speed of introducing new functionality.

The overall implementation practices, recognized as Cloud Native, are adopted by Genew UnionCore to consistently and fully take the advantage of the possibilities of the cloud to support cloud-oriented business models and satisfy the increased automation that needed to cater for an unpredictable competitive landscape.

  • Carrier Grade Reliability

All Genew UnionCore products including uCP share the same system software architecture that enables centralized management and distributed processing, facilitating the control and management of large-capacity mobile networks. Genew UnionCore supports 1+1 active/standby or N+1 multi-active and standby solution, and supports the pooling solution of MME pool or AMF pool. In addition, Genew UnionCore has powerful processing capability and scalability, ensuring that there is no single point of failure, and supports component redundancy and disaster recovery.

  • Efficient and Automated O&M

Genew UnionCore provides whole set of FCAPS management APIs for an easy integration with existing O&M system, provides MML based configuration operation to enable automated operations like patch/rollback etc., and provides end-to-end user trace throughout all network elements and the fault observation logs to accurately and quickly identify problems on a living network.

  • Carrier Grade Integrity and Performance

Genew UnionCore is designed and implemented with the carrier grade integrity and performance to meet the growing requirement of high bandwidth and density of 5G. To help operator save TCO, especially save every cost per bit of data on the living network, Genew UnionCore leverages the cutting-edge technologies such OVS, DPDK, SR-IOV, hardware acceleration by FPGA to achieve a high throughput, transcoding speed and improved integration of the whole system.

  • Interoperability and Customization

All Genew UnionCore products including uCP are implemented based on 3GPP standard, all interfaces, procedures, message parameters are strictly designed as the 3GPP standard definition. This greatly enables a smooth interoperability with different NEs from various vendors, such as interoperation with RAN, Core Network of Ericsson, Nokia, Huawei, ZTE etc., that enables a great rich deployment experience in commercial network.

Genew UnionCore also provides great customization support for operators, that means in the living network, the circumstance is always much more complex than expectation, operators need O&M API and log file adaption, or modification on interfaces or procedures, or a creative solution distinguished from 3GPP standard. Therefore, the customization is needed to provide perfect and suitable solution to help operator improve efficiency and revenue.


The dimension of product is based on the specified traffic model and service requirements, please contact us for details.

Overall view of 3GPP standard network elements mapping to Genew UnionCore products is in the table below:

3GPP Standard NEs

Genew UnionCore Products

MME, GW-C,   AMF, SMF, NRF, NSSF

unified   Control Plane (uCP)

GGSN, SGW-U,   PGW-U, UPF

unified User   Plane (uUP)

PCRF, PCF

unified   Policy Control Function (uPCF)

HLR, HSS,   AUSF, UDM

unified   Subscriber Data Management (uSDM)

CG, CHF

unified   Charging (uCharing)


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