RACH-LESS HANDOVER METHOD AND USER EQUIPMENT USING THE SAME
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United States of America
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Issued Date -
Nov 14, 2024
app pub date -
May 10, 2024
filing date -
May 10, 2024
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Abstract
A RACH-less HO method for a UE in a NTN system is provided, including: receiving a HO command from a source cell, wherein the HO command includes a RACH-less HO configuration and a RACH-based HO configuration associated with one of cells of the NTN system, wherein the RACH-less HO configuration includes a RACH-less available time and a UL transmission resource; determining a target cell according to the at least one cell configured by the HO command; performing a UL resource selection procedure to obtain a target UL transmission resource associated with the target cell for performing a target UL transmission to the target cell; performing a HO confirmation procedure with the target cell by applying a UL timing adjustment information associated with the target UL transmission resource to perform the target UL transmission to the target cell.
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