US 12,082,077 B2
Wireless communication system and wireless communication method
Yasuhiko Inoue, Musashino (JP); Shoko Shinohara, Musashino (JP); and Takafumi Hayashi, Musashino (JP)
Assigned to NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
Appl. No. 17/603,390
Filed by NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
PCT Filed Apr. 13, 2020, PCT No. PCT/JP2020/016351
§ 371(c)(1), (2) Date Oct. 13, 2021,
PCT Pub. No. WO2020/213579, PCT Pub. Date Oct. 22, 2020.
Claims priority of application No. 2019-078172 (JP), filed on Apr. 16, 2019.
Prior Publication US 2022/0217504 A1, Jul. 7, 2022
Int. Cl. H04W 4/06 (2009.01); H04L 1/00 (2006.01); H04L 5/00 (2006.01); H04W 74/0833 (2024.01)
CPC H04W 4/06 (2013.01) [H04L 1/0003 (2013.01); H04L 1/0006 (2013.01); H04L 5/0044 (2013.01); H04L 5/0082 (2013.01); H04W 74/085 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A wireless communication system comprising:
a plurality of transmission devices configured to receive broadcast/multicast data transmitted from a broadcast/multicast data transmission device, convert the broadcast/multicast data into wireless frames, and broadcast/multicast the wireless frames to a plurality of reception devices;
the plurality of reception devices configured to receive the wireless frames broadcasted/multicasted from the plurality of transmission devices and acquire the broadcast/multicast data,
wherein each of the plurality of transmission devices includes a broadcast/multicast transmission unit configured to generate the same wireless frame from the broadcast/multicast data and broadcast/multicast the generated wireless frame at the same transmission timing using the same MCS,
a control device interconnected between the broadcast/multicast data transmission device and each of the plurality of transmission devices, wherein the control device includes a unit configured to calculate an interval of a transmission timing in each transmission device in accordance with a data rate of the broadcast/multicast data transmitted from the broadcast/multicast data transmission device and an amount of data to be transmitted at one time in accordance with an MCS of each transmission device, and notify the plurality of transmission devices of the calculated interval,
wherein the plurality of transmission devices each include a unit configured to notify the control device of received power values of mutually received beacon signals, and
the control device includes a unit configured to calculate the MCS in accordance with the received power values of the respective transmission devices and notify the plurality of transmission devices of the calculated MCS.