Patent ID: 8744460
Filing Date: 2014-06-03
Classification: H04W

Abstract:
1. A radio communication system including a first terminal apparatus group for performing a reception by using a first radio resource and a transmission by using a second radio resource; and a second terminal apparatus group for performing the reception by using the second radio resource and the transmission by using the first radio resource, for performing a radio communication between terminals belonging to the first and second terminal apparatus groups, the radio communication system comprising: a first terminal that belongs to the first terminal apparatus group and transmits allocation request of transmission band in the second radio resource by using the second radio resource; a second terminal that belongs to the second terminal apparatus group, receives the allocation request transmitted from the first terminal by using the second radio resource, and transmits a first signal by using the first radio resource, the first signal being generated in the case of the first radio resource allocating the transmission band for the first terminal; a third terminal that belongs to the second terminal apparatus group and transmits allocation request of transmission band in the first radio resource by using the first radio resource; and a fourth terminal that belongs to the first terminal apparatus group, receives the allocation request transmitted from the third terminal by using the first radio resource, and transmits a second signal by using the second radio resource, the second signal being generated in case of the second radio resource allocating the transmission band for the third terminal, wherein the first terminal transmits data by using the allocated transmission band in the second radio resource in accordance with receiving the first signal, the third terminal apparatus transmits data by using the allocated transmission band in the first radio resource in accordance with receiving the second signal, and the fourth terminal allocates an unused portion of the transmission band of the transmission band to the third terminal, and transmits the allocated transmission band as the second signal.