US 11,991,654 B2
Communication system, communication method, and communication program
Satoshi Sonobe, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Filed by NEC Corporation, Tokyo (JP)
Filed on Nov. 4, 2021, as Appl. No. 17/518,927.
Claims priority of application No. 2020-189940 (JP), filed on Nov. 16, 2020.
Prior Publication US 2022/0159591 A1, May 19, 2022
Int. Cl. H04W 56/00 (2009.01)
CPC H04W 56/001 (2013.01) 7 Claims
OG exemplary drawing
 
1. A communication method comprising:
performing transmission of a packet from a wireless transmission device to a wireless reception device by a first transmission path and a second transmission path composed of one or more transmission paths
performing reception of the packet by the wireless reception device;
determining presence or absence of communication in the first transmission path; and
adding, to an information value held by a storage packet, an actual measurement value of a first delay amount in a predetermined time unit representing a time required for the storage packet to be input to the wireless transmission device and then output from the wireless reception device, when the communication has been determined as being present in the first transmission path;
adding, to the information value, a set value of the first delay amount inside the wireless transmission device and the wireless reception device, when the communication has been determined as being absent from the first communication path, wherein
the transmission and the reception are performed by dividing the storage packet when the communication has been determined as being present in the first communication path;
the transmission and the reception are performed without dividing the storage packet when the communication has been determined as being absent from the first communication path,
the first transmission path is a wireless transmission path between the wireless transmission device and the wireless reception device,
the second transmission path is a transmission path through a transmission side wireless relay device connected to the wireless transmission device, and through a reception side wireless relay device that forms a second wireless transmission path between the transmission side wireless relay device and the reception side wireless relay device, the reception side wireless relay device connected to the wireless reception device, and
a set of the transmission side wireless relay device and the reception side wireless relay device adds, to the information value of the storage packet when the storage packet is undivided, a second delay representing a time required for the storage packet to be sent to the transmission side wireless relay device and then output from the reception side wireless relay device.