Abstract:
PURPOSE: A device for providing communication between a smart cart and a mobile device is provided to perform data transmission between users which is separated apart without an additional cost. CONSTITUTION: An information input unit(110) stores the user information of a plurality of moving device including a smart cart and a mobile device by receiving the user information. A searching unit(120) receives a request message which request a socket generation from one mobile device among a plurality of moving devices. The search unit searches the moving device which is connected to the moving device which inputs the request message based on the stored user information. A socket generating unit(130) generates the socket between the connected moving device and the moving device which inputs the request message to transmit the data.
Abstract:
PURPOSE: A method for transmitting data in a relay station is provided to offer a wireless resource allocating method in a wireless communication system including the relay station. CONSTITUTION: An RN(Relay Node) receives scheduling information and a data about a backhaul link from an eNB. The RN receives channel information about the access link from the repeater station UE. The RN performs a scheduling process about the access link based on the channel information about the access link and the scheduling information about the backhaul link. According to the scheduling result, the RN relays the data to the relay UE.
Abstract:
PURPOSE: A wireless location measuring method and device thereof are provided to supply a superior location measuring result. CONSTITUTION: A TDOA(Time Difference of Arrival) performing unit applies a TDOA method to signals received from transmitters through a signal receiving unit. A controller compares the error rate of the TDOA performing unit with a threshold error rate(S210). If the error rate of the TDOA performing unit is smaller than the threshold error rate, a location determining unit determines the location of the receiver using only a result of the TDOA performing unit(S220). If the error rate of the TDOA performing unit is larger than or the same as the threshold error rate, the location determining unit determines the location of the receiver by combining the result of the TDOA performing unit with a result of the RSSI performing unit(S230).