Patent ID: 7366467
Filing Date: 2008-04-29
Classification: H04W

Abstract:
1. A mobile station of a dedicated short range communications system capable of performing dedicated short range communications between a base station and at least one mobile station by using a radio transmission signal of a communication frame configuration having message data slots to be allocated to mobile stations, respectively, a frame control information slot including allocation information of mobile stations allocated to said message data slots, respectively, and an activation slot for a mobile station to request said base station to allocate one of said message data slots to said mobile station, each of said mobile stations comprising: a data processing unit that performs data processing of radio transmission signals received by and to be sent from said mobile station; an other station allocation determination unit that determines, based on a frame control information slot of said received radio transmission signal, whether a message data slot of said received radio transmission signal is allocated to another mobile station; a message data slot allocation request unit that requests, in an activation slot of said radio transmission signal to be sent, said base station to allocate a message data slot to said mobile station; and a warning command unit that generates a warning command when a message data slot of said received radio transmission signal is allocated to another mobile station.