name: CLTD
full_form: Closed  Transmit Diversity
context: and the choice of Setup, Configuration Change or Removal of UL CLTD is "Setup", then: the DRNS shall setup the requested UL CLTD resources for the concerned UE Context in the cell to determine the precoding weights according the new configuration defined in the UL CLTD Information IE and then:] - [FDD - If there is neither serving E-DCH RL nor the HS-DSCH RL configuration in the UE Context, the C-ID IE shall be included in the UL CLTD Information IE, and the DRNS shall configure this cell to determine the precoding weights for the concerned UE Context.] [FDD - If the UL CLTD Activation Information IE is included in the UL CLTD Information IE, then the DRNS shall use this value to configure the state of UL CLTD for the concerned UE Context.] [FDD â UL CLTD Modification:] [FDD - If the UL CLTD Information Reconf IE is present in the RADIO LINK RECONFIGURATION PREPARE message and the choice of Setup, Configuration Change or Removal of UL CLTD is "Configuration Change", then: the UL CLTD
description: Closed Transmit Diversity (CLTD) is a technique used in wireless communication systems to improve transmission efficiency by adjusting the precoding weights for user equipment (UE) contexts. It involves configuring the cell to determine the optimal precoding weights based on the UE context and the configuration defined in the UL CLTD Information IE.
explanation: The description details the technical workings of CLTD, its purpose in wireless communication systems, and its reliance on specific configurations. This clearly positions CLTD as a technological concept within the telecommunications field.
section_title: 8.3.4.2	Successful Operation
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