US 12,219,421 B2
Cell reselection priority assignment based on performance triggers
Deepak Nadh Tammana, Bothell, WA (US); and Roopesh Kumar Polaganga, Bothell, WA (US)
Assigned to T-Mobile USA, Inc., Bellevue, WA (US)
Filed by T-Mobile USA, Inc., Bellevue, WA (US)
Filed on Sep. 11, 2023, as Appl. No. 18/464,928.
Application 18/464,928 is a division of application No. 17/561,073, filed on Dec. 23, 2021, granted, now 11,792,712.
Prior Publication US 2023/0422129 A1, Dec. 28, 2023
Int. Cl. H04W 36/00 (2009.01); H04W 36/30 (2009.01)
CPC H04W 36/30 (2013.01) [H04W 36/0077 (2013.01); H04W 36/00837 (2018.08)] 20 Claims
OG exemplary drawing
 
1. A user equipment (UE) in a cellular communication network comprising:
at least one hardware processor; and
at least one non-transitory memory, coupled to the at least one hardware processor and storing instructions, which, when executed by the at least one hardware processor, cause the UE to:
receive a default cell-reselection priority transmitted in system information messages broadcast in one or more system information blocks (SIBs),
wherein the cell-reselection priority assigns a priority indicator value to one or more layers that the UE is compatible with;
after receiving the default cell-reselection priority, receive an updated cell-reselection priority,
wherein the updated cell-reselection priority assigns a lower priority indicator value than a default priority indicator value to a layer of the one or more layers when the layer is undergoing a performance degradation;
perform a cell reselection in IDLE mode based on the updated cell-reselection priority thereby causing the UE to deprioritize selection of the layer that is undergoing the performance degradation;
after performing the cell reselection in IDLE mode, receive a further updated cell-reselection priority when the performance degradation is at least partially resolved; and
perform a cell reselection based on the further updated cell-reselection priority thereby causing the UE to prioritize selection of the layer whose performance degradation is at least partially resolved.