Abstract:
복수의 기지국 사이에서 단말 분포현황 및 자원 운용현황 등의 정보를 적절하게 공유함으로써, AMC 기법의 효율성을 높일 수 있는 데이터 전송 방법이 제공된다. 기지국에 등록된 단말로부터 수신한 단말의 위치 정보, 채널 상태 정보, 그리고 MCS 레벨과, 인접 기지국에서 수신한 단말 분포현황 및 자원 운용현황을 기반으로 데이터 전송률의 MCS 레벨을 결정함으로써, 시스템 효율을 향상시킬 수 있다.
Abstract:
Provided is a method of sharing channel state information using one direction cooperation channel between base stations in a cooperation network. According to an embodiment of the present invention, performance may be enhanced as compared with a non-cooperation network without significantly increasing a load of a cooperation channel. The number of connection links between base stations may be reduced to half and a calculation amount to be processed may be reduced. Further, a base station processes interference channel state information due to a neighbor base station so that power loss can be reduced as compared with a case when the channel state information is processed by a terminal.
Abstract:
PURPOSE: A method and apparatus for allocating a resource in a mobile wireless network are provided to allocate resources according to a transmitting and receiving status without collision by setting an allocation position and size of the resources in a wireless mesh network or a mobile AD-hoc network system based on OFDA(Orthogonal Frequency Division Multiple Access). CONSTITUTION: An apparatus for allocating resources searches available resources of a source node(S100). The apparatus for allocating the resource searches the available resources for a receiving node based on information transmitted from the receiving node(S110). The apparatus for allocating the resource searches a common region of transmitting/receiving nodes from the available resources as an assignable resource region(S120). The apparatus for allocating the resource calculates the number of allocation resources which can be allocated to a single frame(S130). The apparatus for allocating the resource selects a region corresponding to the number of the allocation resources calculated from the assignable resource region of the single frame according to an allocation condition and uses the region as the resources for transmitting data(S140).
Abstract:
중계기 기반 무선 통신 시스템에서 데이터 구성 장치가 개시된다. 중계기 기반 무선 통신 시스템에서 데이터 구성 장치는 중계기와 수신기에 전송할 신호를 주기 단위로 구분하여 기본 계층으로 생성하는 기본 계층 생성부; 상기 기본 계층 생성부에서 다음 주기에 전송할 예정으로 생성한 신호를 사용하여 향상 계층으로 생성하는 향상 계층 생성부; 및, 상기 기본 계층과 상기 향상 계층에 계층 변조를 적용하여 상기 수신기에는 상기 기본 계층만이 수신되고, 상기 중계기에는 상기 기본 계층과 상기 향상 계층이 함께 수신되는 복수 계층 신호로 생성하여 전송하는 신호 전송부를 포함한다. 중계기, 무선 통신, 계층 변조, 기본 계층, 향상 계층.
Abstract:
PURPOSE: A data configuration device of a wireless communication system and a device thereof are provided to transmit data to a repeater from a source without separated wireless resources. CONSTITUTION: A base layer generating unit(111) produces a base layer by dividing a signal transmitted to a repeater and a receiver into a cycle unit. An enhancement layer generating unit(112) produces an enhancement layer by suing a signal produced to be transmitted from the base layer generating unit to a next cycle. A signal transmission part(113) applies hierarachical modulation to the base layer and the enhancement layer. The signal transmission part transmits a plurality of plural layer signals.
Abstract:
PURPOSE: A method for controlling the call admission of a mobile communication system is provided to be able to control the call admission adapting to a cell load by controlling the call admission on the basis of total receiving power in a base station. CONSTITUTION: If a call admission is required from a mobile station(10), a base station determines the request power for the call(20). The base station adds the request power and total receiving power, and compares the result and a threshold value(30). If the result is more than the threshold value, the call is rejected(50). If the result is equal or less than the threshold value, the call is admitted(40).