name: TPI
full_form: Transmitted Precoding Indicator
context: or only HS-DSCH serving cell transmits the F-TPICH or all cells from the serving radio link set transmit the F-TPICH. The TPI information update rate is 3 slots. However, the uplink channel measurement periods are not specified for Node B. The UE shall apply the precoding weight indicated by the TPI on the first DPCCH slot boundary, after 512 chips after - the end of the TPI field carrying the second of the two bits in the TPI bit pattern, if the F-TPICH is configured to be transmitted from one radio link only. - the end of the last TPI field carrying the second of the two bits in a TPI bit pattern received during a TPI combining period, if the F-TPICH is configured to be transmitted from multiple radio links. The UE shall measure the reliability of the received TPI bits over the 3 slot period in which the TPI bit pattern corresponding to a precoding weight is received. The received TPI bits are mapped to precoding weights and applied by the UE only if the estimated quality of the TPI
description: The Transmitted Precoding Indicator (TPI) is a parameter used in the downlink transmission process, specifically for controlling the precoding weight applied by the User Equipment (UE). It is transmitted through the F-TPICH channel and has an update rate of 3 slots. The UE uses the TPI to determine the reliability of the received bits over a 3-slot period and applies the corresponding precoding weights if the estimated quality meets certain criteria.
explanation: The context describes TPI as a parameter used in downlink transmission to control precoding weights applied by the UE. Its role, transmission method (F-TPICH), and update rate all point towards it being a parameter within the telecommunications system.
section_title: 10.2	Downlink TPI transmission and control timing
biotag_Context: O,O,B-Connection,O,O,O,O,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,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,B-Connection,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,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,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,B-Parameter
biotag_Description: O,B-Parameter,I-Parameter,I-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,I-Device,O,O,O,O,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,O,O,O,O,O,O,O,O,O,O,O