Patent ID: 9167600
Filing Date: 2015-10-20
Classification: H04W

Abstract:
1. A radio terminal, comprising: a receiving unit configured to receive a request signal from another radio terminal, the request signal comprising a request for a first access right to transmit a radio signal to a base station, the request signal including information on a first period and a second period, the first period being a transmission period based on the first access right and the second period being set within the first period and being a transmission period for a space multiplexing scheme; a prevention unit configured to prevent transmission of the radio signal upon receiving the request signal; a cancellation unit configured to cancel prevention of the transmission of the radio signal upon receiving an assignment signal from the radio base station even when the transmission of the radio signal is prevented according to the request signal directed to the radio base station, the assignment signal being for assigning a second access right to both the another radio terminal and the radio terminal for transmission under the space multiplexing scheme; and a transmitting unit configured to transmit the radio signal to the radio base station within the second period according to the received assignment signal, wherein the transmitting unit ends transmission of the radio signal within the second period.