name: TAS
full_form: Tx Antenna Switching
context: Editorâs note: This clause is incomplete and has several aspects that are yet to be determined. - The applicability of this verification procedure is pending. - The criteria of confirming TAS-OFF based on above verification procedure is pending. - The below test procedure for TAS OFF is informative and not a mandated action for test lab to be done before UE TRP testing. As described in Clause 8.2.2 and 9.2.2, for SA and EN-DC testing respectively, the TAS OFF should be ensured before performing TRP test. In order to provide guidance on how to check UE antenna locking condition, this Clause define an informative test procedure to verify TAS OFF. The general verification procedure is as following: - Perform OTA TRP measurement baseline test with top of device pointing towards +Z and display oriented at phi (azimuth) 0 degree following the traditional alignment method; - Benchmark with similar TRP measurement OTA test with top of device pointing towards -Z and display oriented at phi
description: Tx Antenna Switching (TAS) is a technology used in telecommunications to switch between different antenna configurations, ensuring optimal transmission and reception of signals. In the context of 3GPP TS 38.561, TAS OFF verification procedure is discussed, highlighting its importance in UE TRP testing.
explanation: The provided text explicitly states that Tx Antenna Switching (TAS) is a technology used for antenna switching in telecommunications.
section_title: A.3.6TAS OFF verification procedure
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