Abstract:
The present invention relates to a method and an apparatus for performing cooperating carrier aggregation in a plurality of base stations in heterogeneous network systems. According to the present invention, inter-base station cooperating carrier aggregation allows wireless communication to be maintained between a terminal and a base station in a heterogeneous network environment, and a frequency band of another base station with excellent signal quality can be set as a secondary component carrier with respect to the terminal for service provision. Accordingly, a service bandwidth with respect to the terminal can be expanded, and unnecessary handover overhead between the base stations can be reduced. In addition, a load of the base station with concentrated traffic can be distributed to another base station, and wireless resource use and efficiency can be increased through inter-base station sharing of available resources.
Abstract:
하향링크 또는 상향링크로의 스케줄링이 가능한 제1 반송파 집합 내에서, 하향링크 제어채널을 처리하는 장치는 제1 반송파 집합이 포함하는 복수개의 반송파 중에서 적어도 하나의 반송파를 포함하는 제2 반송파 집합을 설정하고, 제2 반송파 집합이 포함하는 반송파에서 모니터링이 필요한 하향링크 제어 정보의 포맷에 대해 하향링크 물리 제어 채널을 모니터링한다. 다음, 장치는 하향링크 물리 제어 채널에서 하향링크 제어 정보를 디코딩하고, 복수개의 반송파 각각 해당하는 하향링크 제어 정보를 획득한다. 하향링크, PDCCH, CCS
Abstract:
PURPOSE: A carrier based interference control method in a heterogeneous environment is provided to receive interference information by requesting interference information to other node. CONSTITUTION: A first node transmits a message to a second node(S410). The message includes content requiring information for an interference situation in each group of PRB(Physical Resource Block) of the second node. The first node receives a response message corresponding to the message from the second node(S420). The first node is a capacitor node which increases capacity. The second node is a coverage node which extends coverage. [Reference numerals] (AA) Start; (BB) End; (S410) First node transmit a message including content requiring information for an interference situation in PRB or in each group of PRB to the second node; (S420) Receive a response to the message
Abstract:
PURPOSE: A resource assignment device in a new generation wireless access network and a resource assignment method thereof are provided to effectively assign resources by considering interference between the cells in a wireless access network. CONSTITUTION: A terminal state information management unit(304) manages the state information of terminals. An integrated cell resource assignment priority determination unit(305) determines the resource assignment priority of the terminals based on the state information and the information of the terminals stored in the terminal state management unit. An integrated cell resource assignment unit(306) assigns the wireless resources managed by an integrated cell resource management to the terminals according to the priority determined in the integrated cell resource assignment priority determination unit. The integrated cell resource assignment unit converts the information of the integrated cell resource management unit. [Reference numerals] (301) Cell information management unit; (302) Integrated cell resource management unit; (303) Terminal information management unit; (304) Terminal state information management unit; (305) Integrated cell resource assignment priority determination unit; (306) Integrated cell resource assignment unit
Abstract:
PURPOSE: A wireless resource assignment method of a mobile communication system is provided to improve the service quality of a terminal by improving resource usage efficiency in an overlapped cell environment. CONSTITUTION: A resource assignment device receives resource assignment information of a neighbor cell generating interference between the cells. The resource assignment device divides resource assignment target resources based on the received resource assignment information. The resource assignment device assigns resources to each terminal by considering interference between the cells(S507-S509). The resource assignment information is ABS(Almost Blank Sub-frame) pattern information defined in the neighbor cell. The resource assignment device is divided into a first and a second terminal group. [Reference numerals] (AA) Start resource assignment; (BB,DD,FF,HH) Yes; (CC,EE,GG,II) No; (JJ) End; (S501) Corresponding target sub-frame = ABS ?; (S502) Apply a first weighted value to the wireless channel quality of terminals belonged to a interfered terminal group in the ABS; (S503) Apply a second weighted value to the wireless channel quality of terminals belonged to a non-interfered terminal group; (S504) Select a terminal to which a resource is assigned by considering the weighted value applied wireless channel quality and service requirements; (S505) Selected terminal = Interfered terminal ?; (S506) Assignment target sub-frame = ABS ?; (S507) Assign resources based on the wireless channel quality of the interfered terminal in the ABS; (S508) Assign resources based on the wireless channel quality of the interfered terminal in a Non-ABS; (S509) Assign resources based on the wireless channel quality of the non-interfered terminal; (S510) Is there an available resource and a resource assignment requesting terminal?
Abstract:
PURPOSE: A data transmitting method of a machine type communication(MTC) device and a mobile communication system using the same are provided to overcome the loads of access networks. CONSTITUTION: A base station applies specific identification(ID) to MTC groups which are classified according to the characteristics of applications and allocates uplink resources to each MTC group ID. An MTC device(110) is in the MTC group and sets the specific transmission period of standing-by time and receives information related to the uplink resources allocated by the MTC group ID from the base station after the specific transmission period of standing-by time. The MTC device transmits data to the base station using the allocated uplink resources.
Abstract:
본 발명은 셀의 경계 영역에 설치되는 셀간 간섭 조정장치 및 셀의 경계 영역에 위치하는 이동단말에 대한 셀간 간섭 조정방법에 관한 것으로, 셀간 간섭의 주요 원인이 되는 셀의 경계 영역에 셀간 간섭 조정장치를 설치하고, 기지국이 이 셀간 간섭 조정장치의 사용 주파수 및 전송 출력을 사전에 설정된 링크(Link)를 통해 전달함으로써 셀간 간섭 조정장치가 복잡한 알고리즘을 사용하지 않고도 간단하게 셀간 간섭을 조정할 수 있도록 하여 통신 성능을 향상시킬 수 있도록 한 것이다. 이동단말, 기지국, 셀, 경계 영역, 셀간 간섭 조정