US 11,991,519 B2
Communication method, communication system, authentication apparatus and user terminal device
Takahito Kirihara, Musashino (JP); Satoshi Narikawa, Musashino (JP); and Satoshi Ikeda, Musashino (JP)
Assigned to NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
Appl. No. 17/059,107
Filed by NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
PCT Filed May 17, 2019, PCT No. PCT/JP2019/019661
§ 371(c)(1), (2) Date Nov. 25, 2020,
PCT Pub. No. WO2019/230446, PCT Pub. Date Dec. 5, 2019.
Claims priority of application No. 2018-103449 (JP), filed on May 30, 2018.
Prior Publication US 2021/0227387 A1, Jul. 22, 2021
Int. Cl. H04W 12/065 (2021.01); H04L 9/40 (2022.01)
CPC H04W 12/065 (2021.01) [H04L 63/08 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A communication method of an optical communication system for causing a processor to execute a process, the communication method comprising executing on the processor the steps of:
sending, by a user terminal, a connection request for establishing a communicative connection with a network to an ONU;
sending, by the ONU, the connection request to an OLT through a fiber-to-subscriber-line;
sending, by the OLT, the connection request to an authentication device;
determining, by the authentication device, whether the user terminal is allowed to establish the communicative connection with the network in response to the connection request;
notifying, by the authentication device, a determination result to the OLT and the ONU;
rejecting, by the OLT and the ONU, the establishment of the communicative connection with the network by the user terminal when the determination result indicates a state in which the connection request for establishing the communicative connection with the network by the user terminal is denied; and
controlling, by the OLT and the ONU, the establishment of the communicative connection with the network by the user terminal, by dynamically allocating a bandwidth in accordance with another request from the user terminal when the determination result indicates a state in which the connection request for establishing the communicative connection with the network by the user terminal is allowed.