Abstract:
통신시스템(100)은 펨토셀 기지국(HeNB, 130)이 사용할 수 있는 공유 부대역의 수( )를 결정하는 매크로셀 기지국(MeNB, 110) 및 개의 공유 부대역 중에서 기준 거리에 위치한 이웃 HeNB가 사용하는 이웃 공유 부대역을 선택하는 펨토셀 기지국(HeNB, 130)을 포함한다.
Abstract:
The present invention comprises the steps of enabling a base station to obtain channel gain information for at least one D2D communication terminal (DUE) and at least one mobile communication terminal (CUE) located in the coverage of the base station (610); of enabling the base station to determine final transmission power between the mobile communication terminal (CUE) and the D2D communication terminal (DUE) using the channel gain information (620); and of enabling the base station to allocate resources to the selected D2D communication terminal by selecting the D2D communication terminal (DUE) which shares the resources with the mobile communication terminal (CUE) (630). The determination step (620) determines the transmission power of DUE j, in which the sum of the CUE i transmission rate and the DUE j transmission rate is maximized when the base station shares the same resources between the CUE i and the DUE j using the channel gain information, as the optimal transmission power. The allocation step (630) comprises a step of enabling the base station to allocate the resources to CUE i (631); a step of enabling the base station to select the DUE j which becomes the maximum sum of the CUE i among DUE using the determined optimal transmission power; and a step of enabling the base station to enabling the base station to transmit a control signal including resource information allocated to the CUE i and the optimal transmission power for the DUE j to the selected DUE j through a downlink.
Abstract:
A communications system (100) includes a macrocell base station (MeNB, 110) which determines the number (N_c) of shared bus bands in which a femtocell base station (HeNB, 130) uses; and the femtocell base station (HeNB, 130) which selects an adjacent shared sub band in which the adjacent HeNB located in a reference distance uses among the shared sub bands in the number of N_c.
Abstract:
A method for controlling interference between APs according to the embodiment of the present invention includes the steps of: enabling a header AP to collect information about an adjacent AP using the same channel by using a relay terminal connected to the header AP; enabling the header AP to transmit an IP address to the adjacent AP by using the collected information and to set a session with the adjacent AP; and enabling the header AP to change the channel of a target AP among the adjacent APs through the set session. The method further includes the step of controlling the transmission power of the target AP and the header AP if the APs use all the channels.
Abstract:
본실시예에따른 AP 사이의전파간섭을제어하는방법은헤더 AP가자신에게접속된중계단말을이용하여동일한채널을이용하는인접한이웃 AP에대한정보를수집하는단계, 헤더 AP가수집한정보를이용하여자신의 IP 주소를이웃 AP에전달하고이웃 AP와세션을설정하는단계및 헤더 AP가설정된세션을통해이웃 AP 중에서대상 AP의채널을변경하는단계를포함한다. 나아가 AP들이모든채널을사용하고있는경우헤더 AP 및대상 AP의전송전력을제어하는단계를포함할수도있다.
Abstract:
A communication system (100) includes a macrocell base station (MeNB) (110) which determines the number of shared sub bands which a femtocell base station (HeNB) (130) uses and the femtocell base station (HeNB) (130) which selects an adjacent shared sub band which the adjacent HeNB which is located in a reference distance uses among the shared sub bands.
Abstract:
A communication system (100) includes a macrocell base station (MeNB) (110) to determine the number of shared sub bands which a femtocell base station (HeNB) (130) uses and the femtocell base station (HeNB) (130) to select an adjacent shared sub band which the adjacent HeNB located in a reference distance uses among the shared sub bands.
Abstract:
기지국이자신의커버리지에위치하는적어도하나의이동통신단말(CUE) 및적어도하나의 D2D통신단말(DUE)에대한채널이득정보를획득하는단계(610), 기지국이채널이득정보를이용하여이동통신단말(CUE)과 D2D통신단말(DUE) 간의최적송신전력을결정하는단계(620), 기지국이이동통신단말(CUE)과자원을공유하는 D2D통신단말(DUE)을선택하고, 선택된 D2D통신단말(DUE)에자원을할당하는단계(630)를포함한다. 결정하는단계(620)는기지국이채널이득정보를이용하여적어도하나의 CUE 중 CUE i와적어도하나의 DUE 중 DUE j가동일자원을공유하는경우 CUE i와 DUE j의전송률의합이최대가되는 DUE j의송신전력을최적송신전력으로결정한다. 할당하는단계(630)는기지국이 CUE i에자원을할당하는단계(631), 기지국이결정된최적송신전력을사용하는 DUE 중 CUE i와전송률의합이최대가되는 DUE j를선택하는단계(632) 및기지국이 DUE j에대한최적송신전력및 CUE i에할당된자원정보를포함하는제어신호를하향링크를통해선택된 DUE j에전송하는단계(633)를포함한다.
Abstract:
통신시스템(100)은 펨토셀 기지국(HeNB, 130)이 사용할 수 있는 공유 부대역의 수( )를 결정하는 매크로셀 기지국(MeNB, 110) 및 개의 공유 부대역 중에서 기준 거리에 위치한 이웃 HeNB가 사용하는 이웃 공유 부대역을 선택하는 펨토셀 기지국(HeNB, 130)을 포함한다.
Abstract:
A method to determine transmission power information of a communication terminal in D2D communication using a cellular communication network includes: a step (610) whereby a base station acquires channel gain information with respect to at least one cellular user equipment (CUE) and at least one D2D user equipment (DUE) located within a coverage of the base station; a step (620) whereby the base station determines optimal transmission power between a CUE and a DUE based on the channel gain information; and a step (630) whereby the base station selects a DUE which shares a resource with the CUE and allocates resources to the selected DUE. In the step (620), if a CUE i among at least one CUE and a DUE j among at least one DUE share the same resource with each other, the base station determines transmission power of the DUE j as the optimal transmission power using the channel gain information, wherein the transmission power of the DUE j maximizes the sum of the transmission rates of the CUE i and DUE j. The step (630) includes a step (631) whereby the base station allocates the resources to the CUE i; a step (632) whereby the base station selects the DUE j among the DUEs using the determined optimal transmission power, wherein the sum of the transmission rates of the DUE j and the CUE i is maximized; and a step (633) whereby the base station transmits, to the selected DUE j through a downlink, a control signal including the optimal transmission power for the DUE j and information of the resources allocated to the CUE i.