US 12,262,269 B2
Communication system
Vivek Sharma, Sutton (GB); Meng Wang, Guildford (GB); and Yassin Aden Awad, London (GB)
Assigned to NEC CORPORATION, Tokyo (JP)
Filed by NEC Corporation, Tokyo (JP)
Filed on Feb. 2, 2022, as Appl. No. 17/590,996.
Application 17/590,996 is a continuation of application No. 15/693,619, filed on Sep. 1, 2017, granted, now 11,272,410.
Application 15/693,619 is a continuation of application No. 14/769,884, abandoned, previously published as PCT/JP2014/059910, filed on Mar. 28, 2014.
Claims priority of application No. 1306216 (GB), filed on Apr. 5, 2013.
Prior Publication US 2022/0159533 A1, May 19, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 36/04 (2009.01); H04W 36/08 (2009.01); H04W 84/04 (2009.01); H04W 88/12 (2009.01); H04W 92/04 (2009.01)
CPC H04W 36/04 (2013.01) [H04W 36/08 (2013.01); H04W 84/045 (2013.01); H04W 88/12 (2013.01); H04W 92/045 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A method comprising:
communicating in a network in which a user equipment (UE) is configured to operate in a dual connectivity mode using a first cell and a second cell in which the UE has a radio resource control (RRC) connection;
receiving, from a first base station configured to operate the first cell, via a first interface, a message for transferring, to a second base station configured to operate the second cell, context information including information relating to the first base station and information relating to the second base station, the context information including context information in the form of an identifier for a corresponding bearer, Packet Data Convergence Protocol (PDCP) Sequence Number (SN) and hyper frame number (HFN); and
transmitting, to the second base station, via a second interface, the context information,
wherein the UE is configured to continue to operate in the dual connectivity mode after the transmitting the context information to the second base station.