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Test set offers voice, data testing capability

Posted: 14 Apr 2011 ?? ?Print Version ?Bookmark and Share

Keywords:digital radio test? voice channel? data testing?

Aeroflex Ltd has introduced the addition of critical voice and data testing capability for the 7100 LTE Digital Radio Test Set. The Aeroflex 7100 Option 104 now has added test capability for simultaneous emulation of LTE data and 1X CDMA voice, which is known as SV-LTE (Simultaneous VoiceCLong Term Evolution).

The ability to test a voice channel and an LTE data channel within a single test system simplifies mobile handset testing. Simultaneous voice and data is a key performance technology that enables network operators to offer customers the advantages of LTE's high data rates while maximizing the return on existing investment in current networks to provide widespread, cost-effective voice calling.

As LTE operators shift from supporting data-only devices to deploying mobile LTE handsets based on multiple radio access technologies (RAT), there is increasing demand for these devices to support voice call services over legacy 3G networks. Simulating both RATs in a single test system reduces test set up complexity and speeds up testing time.

The successful testing of SV-LTE is an important step in the three-phase rollout of LTE. In phase one, LTE networks are supporting only data-centric devices such as USB modems. In phase two, handset devices are being added that rely on fallback technologies (WCDMA or 1X CDMA) for voice support. The third stage will introduce handset devices using the LTE network for both data and Voice over IP (VOIP) for the voice solution. Aeroflex test systems support operators during each phase of the rollout.

Some of the key areas of testing include verifying the performance of the device while both data and voice are being transmitted and receivedfor example, testing the data throughput performance of the LTE link while verifying the 1X CDMA audio link.

The 7100 with Option 104 allows engineers to verify: Data throughput/performanceto determine any impact on speed or latency; Voiceto ensure that there is no loss of audio or audio clipping due to the processing load; Protocolto confirm that both RAT protocols operate successfully and do not impact each other's message exchange or timing; and Battery performanceto determine how the battery life is impacted due to SV-LTE.

In addition, the 7100 provides integrated protocol logging and decoding both RATs, an important feature for device/chipset developers.

The 7100 Digital Radio Test Set with Option 104 is available immediately for order. Pricing depends upon the hardware and software options ordered.

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