US 12,149,926 B2
Method, apparatus and system for mobility control
Xiaojuan Shi, Shenzhen (CN); and He Huang, Shenzhen (CN)
Assigned to ZTE Corporation, Shenzhen (CN)
Filed by ZTE CORPORATION, Guangdong (CN)
Filed on Oct. 28, 2021, as Appl. No. 17/512,775.
Application 17/512,775 is a continuation of application No. PCT/CN2019/085319, filed on Apr. 30, 2019.
Prior Publication US 2022/0167233 A1, May 26, 2022
Int. Cl. H04W 36/00 (2009.01); H04W 36/32 (2009.01); H04W 76/30 (2018.01)
CPC H04W 76/30 (2018.02) [H04W 36/0058 (2018.08); H04W 36/0061 (2013.01); H04W 36/00698 (2023.05); H04W 36/00837 (2018.08)] 18 Claims
OG exemplary drawing
 
1. A method for a master node which is accessed by a user equipment (UE), the UE accessed a source secondary node, the method comprising:
transmitting, to a target secondary node, an addition request message comprising a conditional indication,
receiving, from the target secondary node, an addition request acknowledge message with identification information of a target primary secondary cell in response to the addition request message,
determining at least one mobility triggering condition of the target primary secondary cell, and
transmitting, to the UE, a secondary node change type message having the at least one mobility triggering condition of the target primary secondary cell, to make the UE perform a handover from the source secondary node to the target secondary node when determining the target primary secondary cell meets at least one of the at least one mobility triggering condition, wherein the identification information of the target primary secondary cell in the addition request acknowledge message is generated, by the target secondary node, in response to the conditional indication of the addition request message.