US 11,930,447 B2
Communication device and communication method
Yusuke Tanaka, Tokyo (JP); and Naoki Kusashima, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/312,002
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Dec. 26, 2019, PCT No. PCT/JP2019/051184
§ 371(c)(1), (2) Date Jun. 9, 2021,
PCT Pub. No. WO2020/145182, PCT Pub. Date Jul. 16, 2020.
Claims priority of application No. 2019-001580 (JP), filed on Jan. 9, 2019.
Prior Publication US 2022/0015024 A1, Jan. 13, 2022
Int. Cl. H04W 48/18 (2009.01); H04W 72/0453 (2023.01); H04W 72/51 (2023.01)
CPC H04W 48/18 (2013.01) [H04W 72/0453 (2013.01); H04W 72/51 (2023.01)] 9 Claims
OG exemplary drawing
 
1. A communication device comprising:
a transceiver configured to communicate on:
a first frequency band that is an unlicensed band, and
a second frequency band that is an unlicensed band different from the unlicensed band of the first frequency band; and
a control circuitry configured to:
send a notification to a base station to notify the base station that the communication device has data to transmit,
receive a notification from the base station that identifies a scheduled resource of the second frequency band,
attempt to transmit the data on an unscheduled resource of the first frequency band,
based upon a usage condition of the unscheduled resource of the first frequency band, determine that the communication device must delay a start of a transmission of the data via the unscheduled resource of the first frequency band by a determined time delay,
based on determined time delay, determine whether or not the communication device is able to complete a transmission of the data via the scheduled resource of the second frequency band before the communication device would be able to complete a transmission of the data via the unscheduled resource of the first frequency band,
upon determining that the communication device is able to complete the transmission of the data via the scheduled resource of the second frequency band before the communication device would be able to complete the transmission of the data via the unscheduled resource of the first frequency band, transmit the data via the scheduled resource of the second frequency band, and
upon determining that the communication device is not able to complete the transmission of the data via the scheduled resource of the second frequency band before the communication device would be able to complete the transmission of the data via the unscheduled resource of the first frequency band, transmit the data via the unscheduled resource of the first frequency band after the determined time delay.