US 9,813,956 B2
Base station device and handover control method
Kenji Kai, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Appl. No. 14/776,744
Filed by NEC Corporation, Tokyo (JP)
PCT Filed Mar. 7, 2014, PCT No. PCT/JP2014/001271
§ 371(c)(1), (2) Date Sep. 15, 2015,
PCT Pub. No. WO2014/141650, PCT Pub. Date Sep. 18, 2014.
Claims priority of application No. 2013-054406 (JP), filed on Mar. 15, 2013.
Prior Publication US 2016/0037403 A1, Feb. 4, 2016
Int. Cl. H04W 36/00 (2009.01); H04W 36/22 (2009.01); H04W 36/38 (2009.01); H04W 52/02 (2009.01)
CPC H04W 36/0083 (2013.01) [H04W 36/0061 (2013.01); H04W 36/22 (2013.01); H04W 36/38 (2013.01); H04W 52/0203 (2013.01); Y02B 60/50 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A base station device in a wireless communication system, the base station device comprising:
a communication unit configured to communicate with a small base station device that is a neighboring base station device, the small base station device being capable of changing states between an active state and an inactive state, the communication unit being further configured to acquire neighboring cell information including a processing capability index of the small base station device contained in a message received from the small base station device;
a neighboring base station device information table configured to store the neighboring cell information, an elapsed time of a handover inhibition timer that counts a predetermined period of time, and actual handover results that indicate a number of permitted handovers for the small base station device while the handover inhibition timer is activated; and
a control unit configured to activate the handover inhibition timer to count the predetermined period of time upon detection of a state change of the small base station device from the inactive state to the active state, and to conditionally inhibit handover of mobile terminals to the small base station device during the predetermined period of time based on allowances of the processing capability of the small base station device as a handover target base station device derived from information managed by the neighboring base station device information table.