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Agilent Technologies Announces Industry's Most Comprehensive LTE Signal Analysis Solution for Designers of Components, Transceivers

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Agilent's 89601A LTE option, option BHD, provides various EVM traces for both uplink and downlink LTE signals: EVM per sub-carrier, EVM per symbol, EVM per slot, and EVM per resource block (RB). These various EVM traces along with the constellation diagram are color coded based on active channels as shown on trace D, the Frame Summary trace.

Image 1:
Agilent's 89601A LTE option, option BHD, provides various EVM traces for both uplink and downlink LTE signals: EVM per sub-carrier, EVM per symbol, EVM per slot, and EVM per resource block (RB). These various EVM traces along with the constellation diagram are color coded based on active channels as shown on trace D, the Frame Summary trace.

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Agilent's 89601A LTE option, option BHD, allows users to make analysis at all PHY layer levels: frame, sub-frame, slot, and symbol. This figure shows a downlink EVM measurement made on symbol #6 of the first sub-frame which occupies the PSCH and PDSCH channels as shown on all 6 traces.

Image 2:
Agilent's 89601A LTE option, option BHD, allows users to make analysis at all PHY layer levels: frame, sub-frame, slot, and symbol. This figure shows a downlink EVM measurement made on symbol #6 of the first sub-frame which occupies the PSCH and PDSCH channels as shown on all 6 traces.

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Agilent's 89601A LTE option, option BHD, analyzes both uplink and downlink LTE signals in a single option. This figure shows analysis on an uplink LTE signal. As shown by the color coding, analysis is made on the demodulation reference signal (DM-RS) and a user data carried on PUSCH. The cyan color is the DM-RS which uses a zadoff-chu sequence as shown by the constant amplitude on trace A and the user data is using 16 QAM modulation format.

Image 3:
Agilent's 89601A LTE option, option BHD, analyzes both uplink and downlink LTE signals in a single option. This figure shows analysis on an uplink LTE signal. As shown by the color coding, analysis is made on the demodulation reference signal (DM-RS) and a user data carried on PUSCH. The cyan color is the DM-RS which uses a zadoff-chu sequence as shown by the constant amplitude on trace A and the user data is using 16 QAM modulation format.

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RF measurement on a downlink LTE signal. Trace A shows a spectrogram display showing the downlink allocation. It clearly shows the synchronization and broadcast channels occupying the center 72 sub-carriers and the reference signal (pilot) occupying every 6th sub-carrier. Putting a spectrogram marker on the reference signal shows the expected reference signal occupying every 6th sub-carrier as shown on trace B. CCDF and time domain data is displayed on traces C and D, respectively.

Image 4:
RF measurement on a downlink LTE signal. Trace A shows a spectrogram display showing the downlink allocation. It clearly shows the synchronization and broadcast channels occupying the center 72 sub-carriers and the reference signal (pilot) occupying every 6th sub-carrier. Putting a spectrogram marker on the reference signal shows the expected reference signal occupying every 6th sub-carrier as shown on trace B. CCDF and time domain data is displayed on traces C and D, respectively.

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EVM measurement on a downlink LTE signal. Trace A shows a color-coded constellation diagram showing all the active channels and signals as shown on trace C. Trace B shows an RF spectrum of the LTE downlink signal and the ACP marker function to calculate ACP quickly. Trace D shows a summary of error metrics including RMS and Peak EVM for all active channels and signals, Data EVM, RS EVM, frequency error, and more.

Image 5:
EVM measurement on a downlink LTE signal. Trace A shows a color-coded constellation diagram showing all the active channels and signals as shown on trace C. Trace B shows an RF spectrum of the LTE downlink signal and the ACP marker function to calculate ACP quickly. Trace D shows a summary of error metrics including RMS and Peak EVM for all active channels and signals, Data EVM, RS EVM, frequency error, and more.

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Related Information
  Press Release:

Agilent Technologies Announces Industry's Most Comprehensive LTE Signal Analysis Solution for Designers of Components, Transceivers
(2007-December-3)
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