US 11,711,736 B2
Apparatus, system and method for DC (dual connectivity)
Xiaowei Zhang, Tokyo (JP); and Anand Raghawa Prasad, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Filed by NEC Corporation, Tokyo (JP)
Filed on Jan. 5, 2022, as Appl. No. 17/568,779.
Application 17/568,779 is a continuation of application No. 16/388,084, filed on Apr. 18, 2019, granted, now 11,284,317.
Application 16/388,084 is a continuation of application No. 15/124,406, granted, now 10,321,362, issued on Jun. 11, 2019, previously published as PCT/JP2015/001122, filed on Mar. 3, 2015.
Claims priority of application No. 2014-046158 (JP), filed on Mar. 10, 2014.
Prior Publication US 2022/0132379 A1, Apr. 28, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 36/00 (2009.01); H04W 88/06 (2009.01)
CPC H04W 36/0069 (2018.08) [H04W 36/0038 (2013.01); H04W 36/0058 (2018.08); H04W 88/06 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A communication method of a User Equipment (UE), the method comprising:
connecting to a source Master Node (MN) and a source Secondary Node (SN) before a handover from the source MN to a target MN; and
connecting to the target MN and a target SN after the handover from the source MN to the target MN;
receiving, from the source MN, an RRC Connection Reconfiguration message comprising a first identifier of a set of information related to security; and
sending to the target MN, an RRC Connection Reconfiguration complete message;
wherein the target MN sends a second identifier of the set of information to the target SN; and
wherein the source MN is configured to send, to the target MN, a measurement report related to the target SN.