US Patent No. 10,602,531

COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND BASE STATION


Patent No. 10,602,531
Issue Date March 24, 2020
Title Communication System, Communication Method, And Base Station
Inventorship Yoshinori Tanaka, Yokohama (JP)
Tsuyoshi Shimomura, Yokohama (JP)
Assignee FUJITSU LIMITED, Kawasaki (JP)

Claim of US Patent No. 10,602,531

1. A communication system for a time division duplex communication, the communication system comprising:a base station configured to operate in a time division duplex mode, in which a frame formed in a first frequency band includes at least a first time period and a second time period in a time direction;
a first terminal configured to
execute first radio communication between the first terminal and the base station in the first frequency band during the first time period, the first radio communication being configured to perform either one of an uplink communication and a downlink communication during the first time period, and
execute second radio communication between the first terminal and the base station in the first frequency band during the second time period after the first time period, the second radio communication being configured to perform the uplink communication when the first radio communication is configured to perform the downlink communication, the second radio communication being configured to perform the downlink communication when the first radio communication is configured to perform the uplink communication; and
a second terminal that is different from the first terminal and is configured to
execute third radio communication between the second terminal and the base station in the first frequency band during the first time period, the third radio communication being configured to perform the uplink communication when the first radio communication is configured to perform the uplink communication, the third radio communication being configured to perform the downlink communication when the first radio communication is configured to perform the downlink communication, and
does not execute the third radio communication between the second terminal and the base station in the first frequency band during the second time periods.