name: TA
full_form: Timing Advance
context: In the case that after link establishment there are no transport blocks provided for transmission by higher layers for a given CCTrCH mapped to UL DPCH, DL DPCH, PUSCH or PDSCH physical channels, then a Special Burst shall be transmitted in the first allocated frame of the transmission pause. If, including the first frame, there is a consecutive period of Special Burst Period (SBP) frames without transport blocks provided by higher layers, then another special burst shall be generated and transmitted at the next possible frame. This pattern shall be continued until transport blocks are provided for the CCTrCH by the higher layers. SBP shall be provided by higher layers. The value of SBP shall be independently specified for uplink and for downlink and shall be designated as SBGP (special burst generation period) for uplink transmissions SBSP (special burst scheduling parameter) for downlink transmissions The default value for both SBGP and SBSP shall be 8. The Special Burst shall be
description: The Timing Advance (TA) parameter is used for uplink transmissions and represents a value known to the serving base station for a UE with an active call. It can also be obtained when the UE is in idle mode through a special call setup, allowing determination of the cell-ID of the serving cell or sector and the TA. This parameter plays a crucial role in positioning mechanisms by describing a circle (or arc within a sector) along which the UE may be located, aiding in resolving position ambiguity or improving accuracy.
explanation: The context describes Timing Advance as a value used for uplink transmissions and its importance in determining the location of the User Equipment. The explanation of how TA is obtained and utilized in positioning mechanisms confirms its classification as a Parameter.
section_title: Timing Advance (TA)
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