Agilent Technologies Inc. announced that AT4 wireless has selected Agilent test equipment to provide certification testing services for LTE-Advanced/Carrier Aggregation (LTE-A/CA). AT4 wireless has started upgrading its Agilent T4000S series Conformance Test solutions to support LTE-A/CA. Agilent and AT4 wireless have also extended their test system validation agreements, AT4 wireless will continue to provide validation services to Agilent for LTE-A/CA.