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LTE eNodeB
Testing

For information on Artiza Networks’ latest generation of LTE-A eNodeB testers, visit our DuoSIM-Advanced page.

DuoSIM Hardware

Powerful Hardware Blades in ATCA platform: AZP-600/1400

Artiza’s LTE Tester hardware comprises a series of powerful hardware, baseband blade, sRIO (serial Rapid I/O) switch blade, and DSP processing blades/submodules in ATCA platform. One DuoSIM consists of four blades, each responsible for UL-baseband, DL-baseband, UE protocol processing (DSP Array Blade), and S1/X2 protocol processing (DSP Array Blade). The blade-oriented hardware architecture (Table1/2/3) enables flexible testbed configuration to meet various vendor’s requirements, such as capacity, performance, and number of sectors.

DuoSIM Blade-Oriented Hardware Architecture

DuoSIM Installation Example in AZP-1400

SlotCategoryHardwareUsage
1AUE-SIM (Sector 1)Baseband BladesDL baseband
2AUE-SIM (Sector 1)Baseband BladesDL baseband
3UE-SIM (Sector 2)Baseband BladeDL baseband
4UE-SIM (Sector 2)Baseband BladeUL baseband
5UE-SIM (Sector 3)Baseband BladeDL baseband
6UE-SIM (Sector 3)Baseband BladeUL baseband
7ManagementSwitch BladesRIO Switching
8BlankN/AN/A
9ManagementCPU BladeChassis Management
10UE-SIM (Sector 1)DSP Array BladeUu protocol processing
11UE-SIM (Sector 2)DSP Array BladeUu protocol processing
12BlankN/AN/A
13UE-SIM (Sector 3)DSP Array BladeUu protocol processing
14S1/X2-SIM (Sector 1/2/3)DSP Array BladeS1/X2 protocol processing
SlotCategoryHardwareUsage
1UE-SIM (Sector 1)Baseband BladeDL baseband
2UE-SIM (Sector 1)Baseband BladeUL baseband
3UE-SIM (Sector 2)Baseband BladeDL baseband
4UE-SIM (Sector 2)Baseband BladeUL baseband
5UE-SIM (Sector 3)Baseband BladeDL baseband
6UE-SIM (Sector 3)Baseband BladeUL baseband
7ManagementSwitch BladesRIO Switching
8BlankN/AN/A
9ManagementCPU BladeChassis Management
10UE-SIM (Sector 1)DSP Array BladeUu protocol processing
11UE-SIM (Sector 2)DSP Array BladeUu protocol processing
12BlankN/AN/A
13UE-SIM (Sector 3)DSP Array BladeUu protocol processing
14S1/X2-SIM (Sector 1/2/3)DSP Array BladeS1/X2 protocol processing

DuoSIM Installation Example in AZP-600

SlotCategoryHardwareUsage
1S1/X2-SIM (Sector 1)DSP Array BladeS1/X2 protocol processing
2UE-SIM (Sector 1)DSP Array BladeUu protocol processing
3UE-SIM (Sector 1)Baseband BladeDL baseband
4UE-SIM (Sector 1)Baseband BladeUL baseband
5ManagementSwitch BladesRIO Switching
6ManagementCPU BladeChassis Management
SlotCategoryHardwareUsage
1S1/X2-SIM (Sector 1)DSP Array BladeS1/X2 protocol processing
2UE-SIM (Sector 1)DSP Array BladeUu protocol processing
3UE-SIM (Sector 1)Baseband BladeDL baseband
4UE-SIM (Sector 1)Baseband BladeUL baseband
5ManagementSwitch BladesRIO Switching
6ManagementCPU BladeChassis Management

Baseband Blade

The outstanding capacity of 1,000 UEs/sector is the first in the industry, made possible by high-performance baseband processing units with a number of FPGAs/DSPs on a blade. This original blade is entirely developed by Artiza’s in-house engineering team from the PCB (20 Kpins) design to FPGA logical circuit and DSP software implementation, well crafted to the level of artistic work (Figure 1). With the special blade hardware design, the product has the full control of baseband processing, especially for PHY/MAC layers testing, becoming one of the most important factors for LTE eNB performance. In addition to the legacy RF interface, use of CPRI interface has tremendously improved the test efficiency.

Baseband Blade (AN2-B-BB-02)

DSP Array Blade

New ATCA blade becomes available for all models of DuoSIM to generate higher traffic on C-plane and U-plane via Uu and S1/X2 interfaces. The new blade is an array of powerful DSP processors consisting of 8 DSP submodules with traffic engines and large scale FPGAs (Figure 2). The blade comes with two options (AN2-B-DT8-01-001/ AN2-B-DT7-01-001), which deal with Uu and S1/X2 interfaces respectively. For Uu interface, generated traffic is passed through the 10-Gbps sRIO interface on backplane into baseband blade. And for S1/X2 interface, traffic is through the 10GbE or 1GbE port on the front panel. This powerful architecture achieves simulation of various protocols and tremendously high capacity per chassis.

DSP Array Blade (AN2-B-DT7-01-001)