US 12,010,590 B2
Communication device, communication method, and storage medium for implementing coexistence with legacy system
Kazuya Moriwaki, Fujimino (JP); Masaya Shibayama, Fujimino (JP); Yasuhiro Suegara, Fujimino (JP); and Takeo Ohseki, Fujimino (JP)
Assigned to KDDI CORPORATION, Tokyo (JP)
Filed by KDDI CORPORATION, Tokyo (JP)
Filed on Jan. 12, 2021, as Appl. No. 17/146,716.
Application 17/146,716 is a continuation of application No. PCT/JP2019/030312, filed on Aug. 1, 2019.
Claims priority of application No. 2018-147732 (JP), filed on Aug. 6, 2018.
Prior Publication US 2021/0136534 A1, May 6, 2021
Int. Cl. H04W 4/06 (2009.01); H04L 5/00 (2006.01); H04W 88/10 (2009.01)
CPC H04W 4/06 (2013.01) [H04L 5/0048 (2013.01); H04L 5/0073 (2013.01); H04W 88/10 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A communication device capable of performing communication via a second wireless communication system that is different from a first wireless communication system, in a frequency band that is used by the first wireless communication system, the first wireless communication system periodically transmitting a reference signal, the communication device comprising:
a communication circuit; and
a controller that controls the communication circuit,
wherein
the communication device is a base station device of the second wireless communication system capable of performing communication via the second wireless communication system in the frequency band, and
the controller
controls the communication circuit to transmit, to a base station device of the first wireless communication system, information for operating the base station device in a mode in which the periodical transmission of the reference signal is interrupted for a predetermined period, and
controls the communication circuit to perform communication involving transmission of a predetermined signal of the second wireless communication system while the base station device of the first wireless communication system is operating in the mode.