US 11,711,735 B2
Carrier aggregation (CA) configuration during dual-active-protocol stack (DAPs) handover (HO)
Olufunmilola Omolade Awoniyi-Oteri, San Diego, CA (US); Tao Luo, San Diego, CA (US); Hung Dinh Ly, San Diego, CA (US); Karthika Paladugu, San Diego, CA (US); and Ozcan Ozturk, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Oct. 1, 2020, as Appl. No. 17/61,518.
Claims priority of provisional application 62/911,013, filed on Oct. 4, 2019.
Prior Publication US 2021/0105676 A1, Apr. 8, 2021
Int. Cl. H04W 4/00 (2018.01); H04W 36/00 (2009.01); H04W 76/30 (2018.01)
CPC H04W 36/0069 (2018.08) [H04W 76/30 (2018.02)] 19 Claims
OG exemplary drawing
 
1. A method for wireless communication by a user equipment (UE), comprising:
receiving a handover message for a dual-active-protocol stack (DAPs) handover (HO) from a source network entity to a target network entity, wherein a carrier-aggregation (CA) mode is configured with the source network entity prior to reception of the handover message for the DAPs HO;
receiving a CA reconfiguration message alongside the handover message from the source network entity to deactivate the CA mode and activate a single carrier mode with the source network entity;
deactivating the CA mode in response to reception of the CA reconfiguration message for the DAPs HO to activate the single carrier mode with the source network entity; and
performing the DAPs HO from the source network entity to the target network entity during an HO period, wherein the single carrier mode is maintained with the source network entity during at least a portion of the HO period, and wherein connection with the target network entity is maintained during the at least the portion of the HO period.