Continuous Computing’s 3rd Generation (3G) Iu User Plane Protocol (Iu UP) protocol is a complete implementation of the 3GPP TS 25.415 version 7.3.0 (2006-12). It interfaces with RTP/GTP-u/AAL2 layers at its lower interface and interfaces with a customer provided application at the upper interface.

Located in the User Plane of the Radio Network Layer (RNL) over Iu interface, Iu UP is independent of the underlying transport mechanism. The Iu UP layer exports its services through Upper Service Access Points (SAPs) and accesses the services exposed by the provider layers through its Lower SAPs. The Iu UP protocol works in two modes: transparent and support.

An integrated Iu UP protocol stack comprises of the following Continuous Computing products:

  • Iu User Plane Protocol (Iu UP)
  • GPRS Tunneling Protocol User Plane (GTPu)
  • Real-time Transport Protocol (RTP)
  • ATM Adaption Layer Type2 (AAL2)
  • TCP/UDP Convergence Layer (TUCL)

The following diagram illustrates the external interfaces of the Iu-UP layer and how it fits into the environment:

Diagram Trillium Iu UP

Trillium 3G Iu UP software enables network equipment providers of NodeB, Radio Network Controllers, Femtocells, Femtocell Gateways, test equipment, or other products to:

  • Accelerate time to market
  • Reduce development costs
  • Reduce project risk of internally developed Iu UP applications

Product deliverables consist of C source software, documentation, training, the Trillium XML Test Architecture (XTA), a warranty and technical support.

FEATURES + BENEFITS

The features and benefits of Trillium Iu UP software are as follows:

  • Provides procedures for data transfer in both transparent and support mode
  • Provides procedures for control frame transfer in support mode
  • Support for GTP-u, RTP and AAL2 as transport protocol
  • Extensive run-time error checking support
  • Extensive debugging support to ease system integration and testing
  • Provides statistics information
  • Conforms to Trillium Advanced Portability Architecture (TAPA)

PRODUCT INTERWORKING

Iu UP protocol stack uses the services of other Continuous Computing products and interworks with other vendor stacks as well.

CONFORMANCE

Trillium Iu UP software conforms to:

  • Trillium Advanced Portability Architecture (TAPA)
  • 3GPP TS 25.415 UTRAN Iu interface user plane protocols v7.3.0, Release 7
  • 3GPP TS 25.415 UTRAN Iu interface user plane protocols v6.3.0, Release 6
  • 3GPP TS 25.415 UTRAN Iu interface user plane protocols v5.5.0, Release 5
  • 3GPP TS 25.415 UTRAN Iu interface user plane protocols v4.7.0, Release 4
  • 3GPP TS 25.415 UTRAN Iu interface user plane protocols v3.12.0, Release 99