US 11,659,517 B2
Managing connection states for communications devices
Sivapathalingham Sivavakeesar, Tokyo (JP); Robert Paterson, Tokyo (JP); Toshiyuki Tamura, Tokyo (JP); and Sadafuku Hayashi, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Appl. No. 16/347,074
Filed by NEC Corporation, Tokyo (JP)
PCT Filed Oct. 26, 2017, PCT No. PCT/JP2017/038723
§ 371(c)(1), (2) Date May 2, 2019,
PCT Pub. No. WO2018/084070, PCT Pub. Date May 11, 2018.
Claims priority of application No. 1618663 (GB), filed on Nov. 4, 2016.
Prior Publication US 2020/0037285 A1, Jan. 30, 2020
Int. Cl. H04W 68/00 (2009.01); H04W 76/19 (2018.01); H04W 76/27 (2018.01); H04W 36/00 (2009.01); H04W 36/30 (2009.01)
CPC H04W 68/005 (2013.01) [H04W 76/19 (2018.02); H04W 76/27 (2018.02); H04W 36/0055 (2013.01); H04W 36/30 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A base station comprising:
a transceiver; and
a controller configured to:
control the transceiver to receive, from a core network, downlink data for a user equipment (UE);
perform a Radio Access Network (RAN)-based paging to the UE; and
control the transceiver to transmit, to an apparatus for mobility management in the core network, in a case where the RAN-based paging fails, a UE Context Release Request message in a release procedure that is to move a connection management (CM) state of the UE in the apparatus for mobility management to CM-IDLE, without invoking releasing a connection among the apparatus from mobility management and a gateway in the core network.