US 11,671,948 B2
Methods of efficient bandwidth part switching in carrier aggregation
Pei-Kai Liao, Hsin-Chu (TW); Wei-De Wu, Hsin-Chu (TW); and Jia-Hong Syu, Hsin-Chu (TW)
Assigned to MediaTek INC., Hsin-Chu (TW)
Filed by MEDIATEK INC., Hsin-Chu (TW)
Filed on Sep. 13, 2021, as Appl. No. 17/473,947.
Application 17/473,947 is a continuation of application No. 16/578,945, filed on Sep. 23, 2019, granted, now 11,140,675.
Claims priority of provisional application 62/738,063, filed on Sep. 28, 2018.
Claims priority of provisional application 62/737,225, filed on Sep. 27, 2018.
Prior Publication US 2021/0410128 A1, Dec. 30, 2021
Int. Cl. H04W 72/044 (2023.01); H04W 72/12 (2023.01); H04W 72/23 (2023.01)
CPC H04W 72/044 (2013.01) [H04W 72/12 (2013.01); H04W 72/23 (2023.01)] 17 Claims
OG exemplary drawing
 
1. A method comprising:
receiving configuration information transmitted from a base station by a user equipment (UE) in a wireless communications network, wherein the UE operates over multiple component carriers (CCs) under carrier aggregation, and wherein the UE is configured with multiple bandwidth parts (BWPs) in each CC;
performing a first active BWP switching in a first CC by the UE upon satisfying a first BWP switch trigger condition;
detecting a second BWP switch trigger condition is satisfied for triggering a second active BWP switching in a second CC, wherein the second BWP switch trigger condition is satisfied by receiving a downlink control information (DCI) in a slot for indicating the second active BWP switching for the second CC; and
determining whether the second active BWP switching is triggered during a time duration of a switching delay of the first active BWP switching, wherein the UE ignores the DCI and drops performing the second active BWP switching in the second CC when the slot overlaps with the time duration.
 
13. A method comprising:
receiving configuration information transmitted from a base station by a user equipment (UE) in a wireless communications network, wherein the UE operates over multiple component carriers (CCs) under carrier aggregation, and wherein the UE is configured with multiple bandwidth parts (BWPs) in each CC;
performing a first active BWP switching in a first CC by the UE upon satisfying a first BWP switch trigger condition;
detecting a second BWP switch trigger condition is satisfied for triggering a second active BWP switching in a second CC, wherein the second BWP switch trigger condition is satisfied by detecting that a BWP inactivity timer for the second CC is expired; and
determining whether the inactivity timer expires within a time duration of a switching delay of the first active BWP switching, wherein the UE delays the second active BWP switching until the first active BWP switching is completed.