US 12,425,923 B2
Radio communication device and radio communication method for executing process corresponding to reception state information
Yoshiaki Ohta, Yokohama (JP); and Shinichiro Aikawa, Yokohama (JP)
Assigned to FUJITSU LIMITED, Kawasaki (JP)
Filed by FUJITSU LIMITED, Kawasaki (JP)
Filed on Apr. 16, 2021, as Appl. No. 17/232,996.
Application 17/232,996 is a continuation of application No. 15/269,372, filed on Sep. 19, 2016, granted, now 10,986,032.
Application 15/269,372 is a continuation of application No. PCT/JP2014/057915, filed on Mar. 20, 2014.
Prior Publication US 2021/0234807 A1, Jul. 29, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 28/18 (2009.01); H04L 1/00 (2006.01); H04L 1/1607 (2023.01); H04L 1/1867 (2023.01); H04L 43/0811 (2022.01); H04L 47/34 (2022.01); H04W 28/02 (2009.01); H04W 28/04 (2009.01); H04W 76/15 (2018.01); H04W 84/04 (2009.01); H04W 92/20 (2009.01)
CPC H04W 28/18 (2013.01) [H04L 1/1614 (2013.01); H04L 1/188 (2013.01); H04L 47/34 (2013.01); H04W 28/0205 (2013.01); H04W 28/04 (2013.01); H04W 76/15 (2018.02); H04L 2001/0096 (2013.01); H04L 43/0811 (2013.01); H04W 84/045 (2013.01); H04W 92/20 (2013.01)] 13 Claims
OG exemplary drawing
 
12. A radio communication system comprising
a first communication device, a second communication device and a third communication device, wherein
the first communication device comprises:
a first communicator configured to have a wireless connection with the second communication device and the third communication device to perform radio communication; and
first controller circuitry configured to:
perform a control for connection change in the wireless connection, when the first communicator receives from the second communication device, an RRC signal that includes both first information instructing the connection change in the wireless connection and second information indicating that reception state information is transmitted, and
a process corresponding to the reception state information received by the first communicator in accordance with the connection change, the reception state information specifying:
whether or not data that is transmitted to the second communication device has already been received; or
whether or not data that is transmitted to the third communication device has already been received,
and
the second communication device comprises:
a second communicator configured to connect to the first communication device and the third communication device and to perform radio communication with the first communication device; and
second controller circuitry configured to perform a control relating to a wireless connection with the first communication device,
the second communicator is further configured to:
transmit, to the first communication device, an RRC signal that includes both first information instructing the connection change device in the wireless connection and second information indicating that reception state information is transmitted, and
transmit, to the first communication device in accordance with the connection change, the reception state information specifying:
whether or not data that is transmitted to the first communication device has already been received; or
whether or not data that is transmitted to the third communication device has already been received.