BASE STATION AND COMMUNICATION METHOD

• Main Authors: MORIYAMA MASAFUMI, KUROSAWA ATSUSHI, KOJIMA FUMIHIDE, TAKIZAWA KENICHI
• Format: Patent
• Language: English; Japanese
• Published: 27.04.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION; TRANSMISSION; WIRELESS COMMUNICATIONS NETWORKS

To prevent a deterioration in communication quality in a situation in which overloaded MIMO easily occurs.SOLUTION: A base station does not receive allocation of wireless resources at the occurrence of a communication request and permits communication with the base station performed by a wireless communication terminal. The base station executes receiving wireless signals arriving from a plurality of wireless communication terminals and in which data is coded, acquiring, from the received wireless signals, a first signal in which at least one of the amplitude and the phase is adjusted from a first wireless communication terminal of the plurality of wireless communication terminals, second processing of generating a replication of a wireless signal arriving from the first wireless communication terminal before at least one of the amplitude and the phase is adjusted, third processing of extracting signals other than the replication of the arriving wireless signal from the received wireless signals, and processing of sequentially repeating first processing through the third processing.SELECTED DRAWING: Figure 4 【課題】過負荷MIMOが発生しやすい状況において、通信品質の劣化を抑制する。【解決手段】基地局は、通信の要求発生時に無線リソースの割り当てを受けないで無線通信端末による前記基地局への通信を許容する。この基地局は、複数の無線通信端末から到来し、データが符号化された無線信号を受信することと、受信した無線信号から、複数の無線通信端末のうちの第1の無線通信端末からの振幅及び位相の少なくとも一方が調整された第1の信号を取得し、振幅及び位相の少なくとも一方が調整される前の第1の無線通信端末から到来する無線信号の複製を生成する第2の処理と、受信した無線信号から到来する無線信号の複製を除外した信号を抽出する第3の処理と、順次第1の処理乃至第3の処理を繰り返す処理と、を実行する。【選択図】図4