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New 3G WCDMA RNC/Iub Simulator for Testing HSDPA

29th September, 2004

Europe : The NetHawk RNC/Iub Simulator allows NodeB developers to test, verify, and demonstrate NodeB implementation in labs and at their customers’ premises.

HSDPA is a key feature for UMTS operators. The NetHawk RNC/Iub Simulator supports testing of this high capacity feature. The new NetHawk RNC/Iub Simulator version 1.3 introduces four major test applications for NodeB development and promotions:
- BER Tester for HSDPA 5.3 Mbps
- 3GPP 25.141 test models for NodeB conformance testing
- internal IP gateway for HSDPA demonstrations
- virtual Iub™ option.

The technical enablers of these applications are new 3GPP Release 5 encoders and decoders, support for asymmetric DCH channels, significant improvement in L1 capacity, support for 2 ms TTI, and accurate synchronization of the NetHawk N3 Adapter.

The NetHawk RNC/Iub Simulator supports release 99, release 4 and now also release 5 baseline in NBAP and RRC protocols that specify HSDPA functionality:
- 3GPP Release 99, March 2002
- 3GPP Release 5, September 2003
- HSDPA Layer1 5.3 Mbps
- NBAP 3GPP, Nokia, Ericsson and Alcatel variants.

Simulator supports asymmetric DCH up to 3.6 Mbps in downlink channels and 64 kbps in uplink channels. The virtual Iub option allows the script development in a workstation without cabling or Iub-related hardware. Virtual Iub also eliminates the uncertainty of a real-time RAN environment and frees up the busy NodeB testing environments.

Other important new features in the NetHawk RNC/Iub Simulator v. 1.3 are : up-to-date decoding of signalling in the Monitoring window, user friendliness as an improved the Help utility and support for multiple (up to 8) FACH channels.

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