WaveJudge 5000 for LTE-A Carrier Aggregation Testing

WaveJudge 5000: LTE Carrier Aggregation Testing Brochure

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The unique and revolutionary capabilities of the WaveJudge 5000 make it an essential tool for fixed and mobile LTE wireless solutions and especially for the increased complexity and multiple serving cells that Carrier Aggregation requires. The WaveJudge offers analysis well beyond the reach of legacy test tools and is the most cost-effective wireless test instrument available.

LTE Carrier Aggregation

LTE Advanced brings increased network efficiency and higher throughput, but Carrier Aggregation is the key to meeting global expectations for mobile broadband performance. It does so by allowing service providers to consolidate multiple component carriers and use the bandwidth as a single medium between the user equipment (UE) and an evolved NodeB (eNB). LTE CA gives carriers with fragmented spectrum the flexibility to offer 4G performance to subscribers.

CA meets the WaveJudge

The Sanjole Wavejudge was designed specifically to troubleshoot the kind of problems that arise when designing and implementing new technologies such as LTE CA.

Introducing the middleman

By tapping into the signal at the RF interface instead of one of the endpoints, the WaveJudge sees the complete conversation for all component carriers, including the PCell and all related SCells. The result is more reliable test results and fewer troubleshooting dead ends.
LTE-A Carrier Aggregation testing with the WaveJudge 5000

Multiple ports, no waiting

By its very nature, Carrier Aggregation requires port density to create PCells and SCells for both uplink (UL) and downlink (DL), especially in applications using multiple carriers. The WaveJudge 5000 architecture is expandable, allowing you to scale your test bed to accommodate the implementation of multiple carriers by adding ports, each completely independent with its own radio and internal resources and all configured from one GUI.

Configure the PHY on the fly

The WaveJudge defines the PHY in software rather than hardware, enabling you to quickly customize the LTE PHY to adjust to the frequent changes in PHY specifications that often occur with emerging technologies. This can be used to troubleshoot problems such as a misconfigured CQI report by editing the parameters in a live capture and then replaying it to verify that the new parameters resolve the issue.

Repeat the past with true air capture

Problem resolution depends on reproducing the conditions under which the error occurred to verify that the fix actually works, which is impossible with over-the-air testing where conditions cannot be tightly controlled and reproduced.

The WaveJudge captures protocol messages and RF-signal characteristics, errors included, over the air and saves them for replay to validate that the problem has been resolved. This gives you visibility into problems arising from errors in RRC configuration, CQI reports, and multiple PUCCH, PUSCH, and DCI formats.

The power of cross-correlation

The WaveJudge shows RF signals time-correlated with upper-layer protocol messages, giving you the power to rapidly investigate and isolate the true root cause of the symptoms or failures you encounter. This capability brings the power of a protocol analyzer to wireless testing.

  • Configure per UE or per physical, transport, or logical channel for decoding.
  • Analyze all upper layer protocols including MAC, RLC, PDCP, RRC, and NAS while correlating messages to the PHY layer.
  • Examine the CQI report to verify SCell configuration.
  • Verify DCI length for CSI scheduling.
  • Check the PUCCH RRC field for proper channel allocation.
  • Automatically extract CA RRC configuration parameters.
  • Verify CA MAC activation/deactivation of Scells.
  • Inspect CSI reports and examine cross carrier scheduling.
  • Monitor multiplexed HARQ ACK/NACK of all configured cells.
  • View all physical channels including PUCCH format 1b, 3 and PUSCH reporting channel.

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Related Information

The WaveJudge Wireless Test System

Testing LTE Technology

Testing WiMAX Technology

Contact Sanjole for more information or a demonstration