The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Several test methodologies have been proposed to evaluate the over-the-air (OTA) performance of multiple-input multiple-output (MIMO)-enabled LTE devices. Reproducible data throughput measurements as a function of downlink power are very time consuming for faded radio channels. Thus only a limited number of spatial channel parameters can be evaluated characterizing the OTA performance of a user equipment...
Wireless industry through 3G Partnership Project (3GPP), and CTIA The Wireless Association has been studying, validating, and standardizing the 2×2 MIMO Downlink OTA tests since 2009. Especially, CTIA has already provided the guidelines for the MIMO OTA tests in both the Spatial Multiplexing, and Transmit Diversity scenarios [1]. After highlighting some background of the well-documented Spatial Fading...
Conformance tests for SISO OTA were introduced in recent years but so far nothing exists for the newly introduced MIMO devices. Unlike SISO systems where multipath fading is something to be overcome, MIMO takes advantage of fading to identify and use orthogonal communication channels to enable simultaneous transmission of multiple streams of data. A consequence of this is that the fading channel characteristics...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.