公开(公告)号：KR1020130117562A

公开(公告)日：2013-10-28

申请号：KR1020120040507

申请日：2012-04-18

Applicant: 주식회사 엘지유플러스 ,  서울대학교산학협력단

Inventor： 최성현 ,  이광복 ,  이형주 ,  곽준호 ,  조원준 ,  최준수 ,  곽동혁 ,  조운선 ,  박재규 ,  김주일 ,  박인순 ,  황민웅

IPC: H04W16/04 ,  H04W88/08

CPC classification number: H04W88/08 ,  H04W16/04 ,  H04W72/06

Abstract: PURPOSE: A system for selecting a channel and a method thereof, an access point (AP) thereof, and a recording medium for the same are provided to provide step-by-step channel selection algorithm according to priority which has to be guaranteed when there are various applications. CONSTITUTION: An AP (210) sets priority about a plurality of channel selection references which is preestablished according to each communication service, by considering each communication service provided to a plurality of terminals. The AP selects each operation channel per the plurality of terminals by applying the plurality of channel selection references step by step according to the established priority. A user equipment (UE) (220) exchanges data with the AP by using the operation channel selected by the AP. [Reference numerals] (210) Access point (AP); (211,221) Control unit; (212,222) Memory; (213,223) RF unit; (220) User equipment

Abstract translation: 目的：提供一种用于选择信道的方法及其方法，其接入点（AP）及其记录介质，以便根据优先权提供逐步信道选择算法，该优先级必须在当 是各种应用。 构成：通过考虑提供给多个终端的每个通信服务，AP（210）根据每个通信服务设置预先建立的多个信道选择参考的优先级。 AP通过根据建立的优先级逐步应用多个信道选择基准来选择每个终端的每个操作信道。 用户设备（UE）（220）通过使用由AP选择的操作信道与AP交换数据。 （附图标记）（210）接入点（AP）; （211,221）控制单元; （212,222）记忆; （213,223）射频单元; （220）用户设备

公开(公告)号：KR1020130006264A

公开(公告)日：2013-01-16

申请号：KR1020120015852

申请日：2012-02-16

Applicant: 서울대학교산학협력단

Inventor： 김동현 ,  이광복

IPC: H04B7/26 ,  H04W72/04

CPC classification number: H04W72/0406 ,  H04L1/0026 ,  H04L25/0224

Abstract: PURPOSE: A mobile communication method in a multiple cellular environment and an apparatus thereof are provided to optimize the selection of a channel when a user performs feedback. CONSTITUTION: A channel selecting unit(130) selects a channel which feedbacks channel information based on feedback resource. An allocating unit(140) allocates an amount of feedback resources used in each terminal based on the size of the selected channels. A selection and allocation information transmitting unit(150) transmits information of the selected channel. A channel information receiving unit(160) feedbacks the channel information of the selected channel from each terminal. [Reference numerals] (110) Signal transmitting unit for estimating a channel; (120) Channel payment information reception unit; (130) Channel selecting unit; (140) Allocating unit; (150) Selection and allocation information transmitting unit; (160) Channel information receiving unit

Abstract translation: 目的：提供多蜂窝环境中的移动通信方法及其装置，以在用户执行反馈时优化信道的选择。 构成：信道选择部（130）根据反馈资源选择反馈信道信息的信道。 分配单元（140）基于所选择的信道的大小分配在每个终端中使用的反馈资源的量。 选择和分配信息发送单元（150）发送所选频道的信息。 频道信息接收单元（160）从每个终端反馈所选频道的频道信息。 （附图标记）（110）用于估计信道的信号发送单元; （120）信道支付信息接收单元; （130）频道选择单元; （140）分配单位; （150）选择和分配信息发送单元; （160）信道信息接收单元

公开(公告)号：KR1020100046755A

公开(公告)日：2010-05-07

申请号：KR1020080105757

申请日：2008-10-28

Applicant: 서울대학교산학협력단

Inventor： 김동현 ,  이병옥 ,  이광복

IPC: H04B7/26

CPC classification number: H04W52/24 ,  H04B7/024 ,  H04W24/00 ,  H04W28/04

Abstract: PURPOSE: A wireless communication system in a multi cell and a multi antenna environment and a method thereof are provided to actively estimate interference information from a terminal to an adjacent cell in multi cell environment, thereby using the interference information to an interference control. CONSTITUTION: A high frequency processor(140) changes a high frequency signal of a transmission method realization unit(130) to baseband signal. A information restoration unit(170) restores the baseband signal. A scheduler(105) assigns each time-frequency resources to terminals. A transmission power decision unit(120) determines a transmission power of a broadcasting signal based on load information of corresponding cell of a load information calculator(110). A interference information estimator(230) estimates the interference information based on a input signal of a high frequency processing unit(220).

Abstract translation: 目的：提供多小区和多天线环境中的无线通信系统及其方法，用于在多小区环境中主动地估计从终端到相邻小区的干扰信息，从而将干扰信息用于干扰控制。 构成：高频处理器（140）将发送方式实现单元（130）的高频信号改变为基带信号。 信息恢复单元（170）恢复基带信号。 调度器（105）将每个时间 - 频率资源分配给终端。 发送功率决定单元（120）基于负载信息计算器（110）的相应小区的负载信息来确定广播信号的发送功率。 干扰信息估计器（230）基于高频处理单元（220）的输入信号来估计干扰信息。