Data Sheet
Stratum UDR/SPR
Stratum Cloud Native Data Network layer enables the resilient, structured store, distribution of data in cloud native & hybrid environments.
Open
Network Data Layer
UDR for 5G Mission Critical Services
The cloud-native distributed database for scalable 5G SA networks
Unlock the Full Value of 5G SA with a Cloud-Native and Multi-Vendor UDR
Communications service providers and enterprises moving to 5G Standalone (SA) are under pressure to launch new services faster, monetize network slices, and guarantee differentiated SLAs – all while controlling cost and complexity. At the heart of this transformation lies one critical capability: consistent, real-time access to user and session data across the entire 5G core. This is an evolution of the structured data challenges seen in earlier networks, but amplified by the scale, speed, and service diversity of 5G SA.
Stratum, Our 5G SA User Data Repository (UDR), Is a Cloud-Native Database Designed Specifically for This Need
Stratum provides a unified, standards-compliant data layer for all 5G core functions – such as UDM, PCF, CHF, and NEF – giving them a single, authoritative source for subscription, policy, profile, and session information. This ensures that the foundational user and device data that networks rely on is always accurate, synchronized, and available.
Built on a modern microservices architecture, Stratum scales with traffic demand, supports geo-redundant deployments across multiple deployment options such as private or hybrid clouds, and enables zero-downtime upgrades. Open APIs and fine-grained data models allow you to integrate new apps, analytics, and exposure platforms without re-engineering your core.
How it Benefits Telecom Operators
- Faster time-to-market: Launch and adapt 5G SA services, slices, and B2B2X offerings quickly using centralized, reusable data models.
- Lower TCO and network complexity: Replace siloed databases with a shared, cloud-native UDR that simplifies operations and reduces duplication.
- Richer experiences, higher ARPU: Use unified user- and session data in real time to power personalized policies, QoS, and charging.
- Telco-grade reliability: Superior availability, effective replications and state-of-the-art conflict resolution, and built-in security to meet strict regulatory and SLA demands.
With our 5G SA UDR, your data becomes a strategic asset – enabling smarter networks, differentiated services, and new revenue streams from day one of your 5G SA journey.
Certification with Oracle Cloud Infrastructure (OCI)
Stratum has been certified to run on Oracle Cloud Infrastructure (OCI), enabling telecom operators to deploy cloud-native 5G solutions with ease. The certification ensures that Stratum integrates seamlessly with Oracle’s cloud infrastructure, providing:
- Automated Onboarding: Simplified deployment with automated Day 0 and Day 1 activities, saving time and resources.
- Performance Validation: Extensive performance testing ensures Stratum can handle high transaction volumes and complex network operations.
- Scalable and Cost-Effective: Optimize resource allocation and scale your infrastructure on demand, ensuring cost-efficiency in dynamic environments.
Stratum’s integration with OCI enables mobile network operators to rapidly scale their operations with a production-grade cloud environment that supports 5G and beyond.
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Frequently Asked Questions
What is UDSF?
UDSF stands for “Unstructured Session Data Storage Function.” It is a 3GPP-defined storage function (according to release-specifications such as 3GPP 29.598) for handling unstructured or semi-structured data in 4G/5G networks — for example session state, dynamic authentication vectors, usage/consumption data, IP-device mappings, and other data that does not fit strict subscriber- or device-data schemas.
Why is UDSF needed in a modern 5G/core network architecture?
In cloud-native, disaggregated 5G networks, many network functions (NFs) and applications generate dynamic runtime data (session context, usage, state) that needs to be shared across multiple components. Instead of each NF storing its own state (leading to silos, complexity, and vendor lock-in), UDSF allows a common, standardized storage and retrieval mechanism — helping realize stateless NFs, enable horizontal scaling, and simplify data sharing and reuse across functions.
What kinds of data belong in UDSF — and what belongs elsewhere (e.g. structured data)?
UDSF is meant for dynamic/unstructured session or state data: e.g. session context, authentication vectors, IP–device association, usage/consumption counters, ephemeral metadata. In contrast, structured data — like subscriber identity, device identity, user profiles, policy data — belong in a structured repository such as the UDR/SPR (Unified Data Repository / Subscriber Profile Repository).
What are the benefits of using Stratum for UDSF?
When leveraging UDSF via Stratum Network Data Layer, mobile operators get several benefits:
• Stateless network functions: NFs don’t carry state internally — state is offloaded to Stratum/UDSF — simplifying scaling, failover, upgrades, redundancy.
• Unified data layer for all data types: Both unstructured (session/state) data and structured (subscriber, device, policy) data are managed in one common layer — reducing data silos, duplication, and operational fragmentation.
• High performance and reliability: Stratum is built for telecom-grade demands, offering hybrid storage (in-memory or disk), configurable durability, and distributed deployment — enabling data access with low latency even in multi-site, cloud-native or hybrid-cloud setups.
• Flexible replication and deployment (core/edge/hybrid): Operators can choose how and where data is stored or replicated, whether synchronous or eventual, enabling support for distributed environments, private 5G, edge computing, and IoT.
• Vendor-neutral, open architecture: Because Stratum is designed for open flexible data modelling and implements standard interfaces, operators avoid vendor lock-in and can integrate heterogeneous network functions from different vendors.
How does UDSF integrate into the broader Stratum unified user- and session data layer architecture?
Stratum supports both structured data and unstructured data, and the structured data layer and unstructured data layer can coexist but remain logically distinct. This separation ensures that structured data remains clean, consistent, and stable, while dynamic session data is handled separately, avoiding schema pollution and ensuring clarity.