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ECC testing for LTE devices

Published on 23 May 2013


Rohde & Schwarz and 7Layers validate test results fromLTE technology MIMO LTE devices. Utilizing the Synchronized ECC test method, proves reduced test times compared to traditional methods.

23rd May, 2013, Irvine (CA), USA: Rohde & Schwarz and 7Layers have verified and validated the Synchronized test approach to determine the Envelope Correlation Coefficient (ECC). ECC is a value characterizing the antenna subsystem of multiple-input and multiple-output (MIMO) LTE devices.

The Synchronized ECC approach delivers significantly shorter test durations and repeatable results, ultimately resulting in reduced costs. Long term, this collaboration will also help product manufacturers develop devices that achieve greater data speeds over LTE by using highly optimized MIMO antenna configurations.

The Synchronized ECC approach involves over-the-air transfer of measured data between the test platform and a mobile device in a synchronized fashion. This method, proposed by a leading US wireless carrier, does not require any overhead or user interaction to calculate the ECC, making it easier and faster to execute test versus other approaches.

7Layers test engineers used the Rohde & Schwarz TS8991 OTA Performance Test System and software option R&S AMS32-K30 as a test platform for validation. “7Layers is excited to help bring an ecosystem of vendors together to advance testing of LTE enabled devices utilizing MIMO,” commented Mahesh Kodukula, Business Development Manager of 7Layers. “As an accredited test laboratory, we provided a realistic test environment for our partners.” “We are pleased to enable this type of testing on our R&S TS8991 OTA test platform and to offer this functionality to a variety of customers that have been waiting for this feature,” said Thorsten Hertel, OTA Product Specialist at Rohde & Schwarz. “We strive to meet the industry needs of the leading edge development of LTE devices.”

About 7Layers: 7Layers, an international group of engineering & test centers, supports industries employing wireless technologies such as LTE, GSM, GPRS, EDGE, CDMA, WiFi, GPS, TETRA, W-CDMA, Bluetooth®…. End product manufacturers, component manufacturers, network operators and technology associations benefit from working with 7Layers. 7Layers runs accredited Test Houses in the USA, Germany, China, Korea and Japan offering conformance and interoperability testing, certification and global type approval. The 7Layers’ Systems House offers product development and integration support, development of test specifications and test cases, as well as InterLab test solutions and test management systems. The 7Layers’ Software House provides the InterLab Software System, for the systematic verification & validation of complex high-tech products. 7Layers belongs to the Bureau Veritas Group, a global leader in testing, inspection and certification, serving a large variety of industries.
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About Rohde & Schwarz: Rohde & Schwarz ( is an independent group of companies specializing in electronics. It is a leading supplier of solutions in the fields of test and measurement, broadcasting, radiomonitoring and radiolocation as well as secure communications. Established almost 80 years ago, Rohde & Schwarz has a global presence and a dedicated service network in over 70 countries. It has approx. 8700 employees and achieved a net revenue of € 1.8 billion (USD 2.3 billion) in fiscal year 2011/2012 (July 2011 to June 2012). Company headquarters are in Munich, Germany. R&S ® is a registered trademark of Rohde & Schwarz GmbH & Co. KG