摘要:
A radio communication system including a base station apparatus including a first memory to store a schedule for communication using each of a plurality of set values of a predetermined communication element in the physical layer, a first antenna to communicate with a terminal apparatus using a first set value of the plurality of set values in accordance with the schedule stored in the first memory, and a first processor to select a second set value of the plurality of set values if the condition of communication performed with the terminal apparatus by the first antenna using the first set value has deteriorated, and cause the first antenna to perform communication using the selected second set value in accordance with the schedule and the terminal apparatus including a second memory to store the schedule, a second antenna to communicate with the base station apparatus, and a second processor.
摘要:
A wireless communication device, including a radio transceiver data configured to transmit and to receive data packets to and from a base station, and a processor configured to compute a proportional hidden standby time being computed on the basis of at least two of from among a proportional exposed communication time, a proportional exposed collision time, and a proportional exposed standby time, to compute a predicted PER from the proportional hidden standby time computed; to compute a threshold value for the number of retransmission attempts on the basis of the predicted PER computed, and to cause the radio transceiver to repeat transmission of a data packet to the base station until the number of transmissions exceeds the threshold value computed in the case of failed transmission of a data packet to the base station by the radio transceiver.
摘要:
A wireless communication device, including a radio transceiver data configured to transmit and to receive data packets to and from a base station, and a processor configured to compute a proportional hidden standby time being computed on the basis of at least two of from among a proportional exposed communication time, a proportional exposed collision time, and a proportional exposed standby time, to compute a predicted PER from the proportional hidden standby time computed; to compute a threshold value for the number of retransmission attempts on the basis of the predicted PER computed, and to cause the radio transceiver to repeat transmission of a data packet to the base station until the number of transmissions exceeds the threshold value computed in the case of failed transmission of a data packet to the base station by the radio transceiver.
摘要:
A transmission control method performed in a communication apparatus, the transmission control method including: receiving a packet from a counterparty apparatus, measuring a quality of communication with the counterparty apparatus and the fluctuation amount of the quality, controlling a transmission so as to transmit a packet to the counterparty apparatus when the fluctuation amount is relatively large in accordance with a first level and the quality is relatively high in accordance with a second level, and not to transmit a packet to the counterparty apparatus when the fluctuation amount is relatively large in accordance with the first level and the quality is relatively low in accordance with the second level.
摘要:
A transmission control method performed in a communication apparatus, the transmission control method including: receiving a packet from a counterparty apparatus, measuring a quality of communication with the counterparty apparatus and the fluctuation amount of the quality, controlling a transmission so as to transmit a packet to the counterparty apparatus when the fluctuation amount is relatively large in accordance with a first level and the quality is relatively high in accordance with a second level, and not to transmit a packet to the counterparty apparatus when the fluctuation amount is relatively large in accordance with the first level and the quality is relatively low in accordance with the second level.