Patent ID: 7933551
Filing Date: 2011-04-26
Classification: H04W

Abstract:
1. A mobile communication system comprising: a wireless base station; and a plurality of mobile stations, including a predetermined mobile station, a first mobile station and a second mobile station, wherein the wireless base station transmits information to the predetermined mobile station, which includes a relay circuit that relays a signal between the first mobile station and the second mobile station, the information transmitted from the wireless base station includes an instruction that makes the relay circuit of the predetermined mobile station start relaying, and in response to receiving the instruction that makes the relay circuit start relaying, the predetermined mobile station forms a communication path between the first mobile station and the second mobile station, in the communication path the predetermined mobile station relays the signal between the first mobile station and the second mobile station, and the predetermined mobile station notifies the wireless base station, when the communication path is unable to be formed, the first mobile station is spatially separated from the predetermined mobile station, the second mobile station is spatially separated from the predetermined mobile station and from the first communication station, the first mobile station is at an end of the communication path and the second mobile station is at another end of the communication path, the communication path bypasses the wireless base station, and the wireless base station determines whether a communication throughput between the wireless base station and a mobile station within a communication area of the wireless base station exceeds a throughput limit, and the wireless base station transmits the signal that starts the relay circuit of the predetermined mobile station if the communication throughput is determined to exceed the throughput limit.