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:
본발명은 D 2D 통신시스템및 그것을이용한위치기반주파수자원할당방법에관한것이다. D 2D 통신시스템의위치기반주파수자원할당방법에있어서, 기지국은셀 내의복수의단말기의위치정보와전송률정보를획득하고후보단말기를검색하는단계, 상기후보단말기위치정보에따라복수의셀룰러그룹과복수의 D 2D 그룹으로나누어그룹화하는단계, 그룹별위치를기초로상기셀룰러그룹과상기 D 2D 그룹을배합하는단계, 상기어울린셀룰러그룹과 D 2D 그룹에포함되는복수의상기후보단말기들에대하여전송률정보를이용하여각각의그룹별로배열하는단계그리고상기셀룰러그룹의후보단말기와상기 D 2D 그룹의후보단말기위배열순서를이용하여주파수자원을공유하도록설정하는단계를포함한다. 이와같이본 발명에따르면위치정보와전송률정보를이용하여 D 2D 단말에자원을할당함으로써, 다운링크통신에서 D 2D(--) 폐어의단말기가동일주파수를공유하고있는셀룰러양식의단말기에주는간섭을감소시킬수 있으며, 시스템의성능을향상시킬수 있다.
Abstract:
본발명은 D 2D 통신시스템및 그것을이용한위치기반주파수자원할당방법에관한것이다. D 2D 통신시스템의위치기반주파수자원할당방법에있어서, 기지국은셀 내의복수의단말기의위치정보와전송률정보를획득하고후보단말기를검색하는단계, 상기후보단말기위치정보에따라복수의셀룰러그룹과복수의 D 2D 그룹으로나누어그룹화하는단계, 그룹별위치를기초로상기셀룰러그룹과상기 D 2D 그룹을배합하는단계, 상기어울린셀룰러그룹과 D 2D 그룹에포함되는복수의상기후보단말기들에대하여전송률정보를이용하여각각의그룹별로배열하는단계그리고상기셀룰러그룹의후보단말기와상기 D 2D 그룹의후보단말기위배열순서를이용하여주파수자원을공유하도록설정하는단계를포함한다. 이와같이본 발명에따르면위치정보와전송률정보를이용하여 D 2D 단말에자원을할당함으로써, 다운링크통신에서 D 2D(--) 폐어의단말기가동일주파수를공유하고있는셀룰러양식의단말기에주는간섭을감소시킬수 있으며, 시스템의성능을향상시킬수 있다.
Abstract:
PURPOSE: A store management server, a wireless terminal and a method of managing a cart using the same are provided to find a location of a cart by using a location measuring device and mange the cart by using the found location, thereby performing effective cart management. CONSTITUTION: A store management service receives position information from a wireless position determination device generating position information about a cart(S201). The store management server generates location information about the cart by using the position information(S203). The store management server transmits the location information to a wireless terminal(S205). The store management server determines whether the cart is located in a preset area by using the location information(S207). The store management server outputs a result according to the determination(S209).