US 12,082,057 B2
User equipment and method for dual connectivity operation during wireless communication handover of same
Yongsheng Shi, Palo Alto, CA (US)
Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Dongguan (CN)
Filed by GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Dongguan (CN)
Filed on Aug. 11, 2021, as Appl. No. 17/399,926.
Application 17/399,926 is a continuation of application No. PCT/CN2019/130591, filed on Dec. 31, 2019.
Claims priority of provisional application 62/824,732, filed on Mar. 27, 2019.
Prior Publication US 2021/0377824 A1, Dec. 2, 2021
Int. Cl. H04W 36/00 (2009.01); H04W 76/16 (2018.01)
CPC H04W 36/0069 (2018.08) [H04W 36/0022 (2013.01); H04W 36/0058 (2018.08); H04W 76/16 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A user equipment (UE) for dual connectivity operation during wireless communication handover, comprising:
a memory;
a transceiver; and
a processor coupled to the memory and the transceiver,
wherein the processor is configured to:
use a synchronization signal/physical broadcast channel block measurement time configuration (SMTC) for one of a new radio (NR) primary secondary sell (PScell) addition procedure and a secondary node (SN) change procedure if the processor is configured with the SMTC in a NR measurement configuration, regardless if another SMTC is given in a handover message; and
use one of a source long term evolution (LTE) primary cell (PCell) and a target LTE PCell as a timing reference if the processor is not configured with the SMTC in the NR measurement configuration,
wherein the SMTC is provided in an LTE radio resource control (RRC) message; and
wherein the target LTE PCell is used as the timing reference.