name: TA
full_form: Timing Attack
context: Power control of SRS: New power control formulas are introduced so that the UE can set SRS power without referring to PUSCH. The higher layers configure open-loop power control parameters for SRS transmission, and the physical layer signals transmit power control (TPC) command for closed-loop SRS power control. The TPC command is sent in a new group downlink control information (DCI) called format 3B. Timing advance (TA) of SRS: SRS TA needs to be determined for each "switching-to" CC. This CC first has to be configured with a TA group (TAG). If TA is not available for a TAG with all PUSCH-less TDD CCs, then a non-contention based random access procedure needs to be performed, which also requires the UE to switch from a CC with PUSCH to a PUSCH-less CC for transmitting random access preamble. After the TA is acquired, TA command can provide finer adjustment of the SRS TA. Periodic SRS and aperiodic SRS: Periodic SRS and aperiodic SRS can be configured on a PUSCH-less CC. The
description: Timing Advance (TA) is a critical network attribute for operation, specifically used in the context of Sounding Reference Signal (SRS) transmission in LTE networks. It refers to the timing adjustment needed for each component carrier (CC) when switching between them, ensuring proper synchronization and reducing interference.
explanation: The provided text describes Timing Advance (TA) as a network attribute crucial for SRS transmission in LTE. It explains how TA is used to adjust timing between component carriers for synchronization and interference reduction. This functionality and its role in network operation clearly classify it as a Parameter.
section_title: SRS (sounding reference signal) switching between LTE component carriers
biotag_Context: O,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,B-Protocol,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,B-Parameter,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,B-Parameter,O,O,O,B-Parameter,O,O,O,O,O,B-Miscellaneous,O,O,O,B-Technology,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,B-Parameter,O,B-Connection,O,O,O,B-Parameter,O,O,O,O,O,O,O,B-Parameter,O,O,B-Parameter,O,O,O,O,O,O,O,B-Parameter,O,O,B-Parameter,O,O,O,O,B-Parameter,O,O,B-Parameter,O,O,O,O,O,O,O,O
biotag_Description: B-Parameter,I-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Connection,I-Connection,I-Connection,O,O,O,B-Technology,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O