Abstract
A user equipment (UE) receives, per lower-layer triggered mobility (LTM) candidate configuration, a simultaneous transmission configuration indicator (TCI) update list and, for each candidate secondary cell (SCell), a mapping table from special cell (SpCell) TCI state identifiers to SCell TCI state identifiers. For each SCell activated by a cell switch command medium access control (MAC) control element, the SCell TCI field is absent when the SCell shares the target SpCell's list, the indicated SpCell TCI state has a mapping-table entry, and a capability limit on inheriting SCells is not reached; otherwise it is present. The UE applies the mapped SCell TCI state, validates it within a window and reports an inheritance failure when validation fails. A source node omits SCell TCI fields only when the configuration version from the candidate node matches the UE-confirmed version. The disclosure covers length-mismatch fallback, field layouts and parameter ranges.
Creative Commons License
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Recommended Citation
Anonymous, "Omission of SCell TCI state in the LTM cell-switch command via a shared simultaneous TCI update list with the target SpCell", Technical Disclosure Commons, ()
https://www.tdcommons.org/dpubs_series/12965