US 12,464,519 B2
Wireless communication devices and methods for uplink transmission
Kosuke Aio, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 18/042,600
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Sep. 1, 2021, PCT No. PCT/JP2021/032046
§ 371(c)(1), (2) Date Feb. 23, 2023,
PCT Pub. No. WO2022/059483, PCT Pub. Date Mar. 24, 2022.
Claims priority of application No. 2020-154331 (JP), filed on Sep. 15, 2020.
Prior Publication US 2023/0337226 A1, Oct. 19, 2023
Int. Cl. H04W 72/1268 (2023.01); H04L 5/00 (2006.01); H04W 72/23 (2023.01); H04W 72/232 (2023.01); H04W 74/00 (2009.01); H04B 7/024 (2017.01); H04W 84/12 (2009.01)
CPC H04W 72/1268 (2013.01) [H04L 5/0035 (2013.01); H04L 5/0053 (2013.01); H04L 5/0091 (2013.01); H04W 72/23 (2023.01); H04W 72/232 (2023.01); H04W 74/002 (2013.01); H04B 7/024 (2013.01); H04W 84/12 (2013.01)] 15 Claims
OG exemplary drawing
 
14. A wireless communication method performed by a wireless communication device and comprising:
performing uplink transmission, which is transmission from a wireless communication terminal, in coordination with another wireless communication device; and
acquiring, from the another wireless communication device, transmission method information indicating a transmission method of a downlink control signal which is a control signal necessary for the uplink transmission, or information necessary for determining the transmission method,
wherein the wireless communication device is a wireless communication device that acquires a transmission opportunity,
wherein the acquiring comprises acquiring information regarding the wireless communication terminal that is triggered to perform the uplink transmission by the another wireless communication device as information necessary for determining the transmission method, and determines the transmission method, and
wherein the method further comprises:
determining whether or not the communication control circuit and the another wireless communication device are capable of simultaneously transmitting the downlink control signal by using a same resource on a basis of information regarding a propagation loss between the communication control circuit and another wireless communication device and all the wireless communication terminals that perform the uplink transmission, or
determining whether or not the downlink control signal is capable of being transmitted in a frequency multiplexing manner on a basis of a bandwidth in which the communication control circuit acquires the transmission opportunity, or
in a case where it is determined that the another wireless communication device is not capable of simultaneously transmitting the downlink control signal by using a same resource and the downlink control signal is not capable of being transmitted in a frequency multiplexing manner exchanging information of the downlink control signal with the another wireless communication device, generating a same downlink control signal in the communication control circuit and the another wireless communication device, and performing control to simultaneously transmit the generated downlink control signal by using a same resource, or
transmitting information indicating the determined transmission method to the another wireless communication device, and transmitting the downlink control signal to the wireless communication terminal by using the determined transmission method.
 
15. A wireless communication method performed by a wireless communication device and comprising:
performing uplink transmission, which is transmission from a wireless communication terminal, in coordination with another wireless communication device; and
acquiring, from the another wireless communication device, transmission method information indicating a transmission method of a downlink control signal which is a control signal necessary for the uplink transmission, or information necessary for determining the transmission method,
wherein the wireless communication device is a wireless communication device that shares a transmission opportunity of the another wireless communication device, and
wherein the method further comprises determining the transmission method of the downlink control signal on a basis of transmission parameter information of the downlink control signal, notification of which is provided from the another wireless communication device that acquires the transmission opportunity as information necessary for determining the transmission method.