Abstract:
본 발명은 SDN 기술을 LTE Network에 효과적으로 적용하기 위한 Network 구조와 이에 기반한 시스템의 동작에 대한 것이다. 이에 따른 본 발명은, SDN(Software-Defined Networking) 기반 무선통신 네트워크에서 SDN 컨트롤러의 통신 제어 방법으로, 기지국으로 단말이 최초 접속함에 따라 게이트웨이 제어부(Gateway Controller)로부터 상기 단말에 관한 정보를 수신하는 단계; 상기 정보를 기초로 상기 단말의 트래픽을 처리할 적어도 하나의 오픈플로우 스위치(OpenFlow Switch; OFS)를 선정하는 단계; 및 상기 적어도 하나의 OFS로 상기 단말의 트래픽을 처리하기 위한 패킷 포워딩 룰(Packet forwarding rule)의 설정 요청을 전송하는 단계를 포함하는 것을 특징으로 하는 통신 제어 방법에 관한 것이다.
Abstract:
Disclosed are a method and apparatus for application hosting by an access node. The method according to the present invention comprises the following steps of: receiving a request packet to request a service from a user application on a mobile terminal; transferring the request packet to the application on the access node when a destination of the request packet corresponds to an application installed on an access node; providing, by the application, the user application on the mobile terminal with the service; and transferring the request packet to a corresponding public application on the internet when the application corresponding to the destination of the request packet does not exist on the access node.
Abstract:
The present invention relates to a method and an apparatus for balancing load for base stations in a multi-carrier wireless communications system, wherein the method comprises the steps of: classifying multiple carriers into multiple groups; determining a cell load of each cell corresponding to each carrier; comparing the cell load of each cell with at least one preset threshold value; selecting a cell in a group including the first cell or in a group without the first cell according to the cell load of the first cell, if the cell load of the first cell has a value greater than the preset threshold value; and performing a handover of a terminal in the first cell to the selected cell, thereby efficiently balancing loads in accordance with a company policy. [Reference numerals] (220) Load equalization inside group; (221) Off loading inside group (Offloading to intra-group carriers); (222) Off loading between groups (Offloading to intra-group carriers)
Abstract:
PURPOSE: A device and method for setting HARQ and ARQ parameters are provided to optimally set HARQ and ARQ parameters, thereby enhancing HARQ performance and UM performance. CONSTITUTION: An HARQ parameter setting unit(110) determines a setup condition of a default HARQ parameter using a QCI(Quality Collaboration Index) feature. The HARQ parameter setting unit sets a default HARQ parameter which satisfies the determined setup condition of the default HARQ parameter. An ARQ parameter setting unit(130) determines a setup condition of a default ARQ parameter using the QCI feature. The ARQ parameter setting unit sets a default ARQ parameter which satisfies the determined setup condition of the default ARQ parameter. A parameter updating unit(150) updates the set default HARQ and ARQ parameters according to a channel state of a terminal.