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Interference rejection combining

Interference rejection combining. Test cases. Following test cases are covered:. Test configuration. eNodeB SW: R8AA (L11B) Site DXL00634 700MHz Band 10MHz BW LG AD600 as target and interfering UE UE HW Version 1.1 UE SW Version 7.2.2. IRC-01.

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Interference rejection combining

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  1. Interference rejection combining

  2. Test cases • Following test cases are covered:

  3. Test configuration • eNodeB SW: R8AA (L11B) • Site DXL00634 • 700MHz Band • 10MHz BW • LG AD600 as target and interfering UE • UE HW Version 1.1 • UE SW Version 7.2.2

  4. IRC-01 • IRC-01: Activation/De-activation of Interference Rejection Combining (IRC) for LTE uplink 1. Activate featurestate 3. Feature is operable 2. Press apply

  5. IRC-01 • IRC-01: Activation/De-activation of Interference Rejection Combining (IRC) for LTE uplink 1. deActivate featurestate 3. Feature is inoperable 2. Press apply

  6. Irc-02&03 – test setup • Target UE • DL SINR: 25 dB • UL SINR: 20 dB • RSRP: -75 dBm • Interfering UE • Connected to PCI 98 • Handover to 106 disabled • Generates broadband UL interference in Gamma sector (PCI 106) • UE TX power manually fixed to +23dBm • 14dB reduction in Target UE UL SINR when activated Target ue interfering ue PTX= +23 dBm

  7. Irc-02&03 – average throughput • Average UL application layer throughput measured (iperf) • 40% increase in throughput seen when IRC activated • Note: the following are not be regarded as benchmark results but rather as proof-of-concept

  8. Irc-02&03 - Throughput vs time Interference turned on Interference turned off IRC turned OFF IRC turned ON

  9. THANK YOU

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