단말기 수신성능을 이용한 채널 운영 방법 및 그에 따른 무선통신 시스템
    121.
    发明公开
    단말기 수신성능을 이용한 채널 운영 방법 및 그에 따른 무선통신 시스템 失效
    使用客户机设备在无线区域网络系统中实现多种频率分配的有效信道管理方法

    公开(公告)号:KR1020080013428A

    公开(公告)日:2008-02-13

    申请号:KR1020060074927

    申请日:2006-08-08

    Abstract: A method for managing channels by using receiving performance of a terminal and a wireless communication system thereof are provided to improve PAPR(Peak to Average Power Ratio) performance of an entire system when differently setting a modulation mode and a frequency channel according to a terminal group classified by a performance class determined through Eb/No, RSSI(Received Signal Strength Indicator), RTD(Round Trip Delay). A channel managing method comprises the following steps of: measuring Eb/No and RSSI(Received Signal Strength Indicator) received from a terminal, and reporting the measured Eb/No and RSSI to a base station(301,302); calculating RTD(Round Trip Delay) in the base station(303); and determining a terminal performance class by using the measured Eb/No and the RSSI, and the calculated RTD and then determining a frequency channel and a modulation mode through the determined performance class(304,305).

    Abstract translation: 提供一种通过使用终端及其无线通信系统的接收性能来管理信道的方法,以便在根据终端组不同地设置调制模式和频率信道时,提高整个系统的PAPR(峰均功率比)性能 通过Eb / No,RSSI(接收信号强度指示器),RTD(往返延迟)确定的性能等级进行分类。 信道管理方法包括以下步骤:测量从终端接收的Eb / No和RSSI(接收信号强度指示符),并将测量的Eb / No和RSSI报告给基站(301,302); 计算基站(303)中的RTD(往返延迟); 以及通过使用所测量的Eb / No和RSSI以及所计算的RTD来确定终端性能等级,然后通过所确定的性能等级来确定频道和调制模式(304,305)。

    직교 주파수 분할 다중 접속 기반 무선 통신 시스템에서의전송효율 최대화를 위한 서브채널 할당 및 고정빔 형성전송 방법 및 장치
    122.
    发明授权
    직교 주파수 분할 다중 접속 기반 무선 통신 시스템에서의전송효율 최대화를 위한 서브채널 할당 및 고정빔 형성전송 방법 및 장치 失效
    用于最大化正交频分多址接入系统中的传输效率的子信道分配和固定波束形成方法及使用该方法的装置

    公开(公告)号:KR100785852B1

    公开(公告)日:2007-12-14

    申请号:KR1020060057629

    申请日:2006-06-26

    Abstract: A sub channel allocation and fixed beam forming method for maximizing transmission efficiency in an orthogonal frequency division multiplexing access(OFDMA) system and an apparatus for using the same are provided to remove an interference signal with minimum costs by allocating a sub channel advantageous to each user device. A sub channel for each user device is determined, on the basis of the channel state of each user device. Beam index for each user device is determined, on the basis of position information and arrival direction information of each user device. An OFDM(Orthogonal Frequency Division Multiplexing) symbol is generated by mapping the symbol corresponding to each user device to the determined sub channel. The generated OFDM symbol is transmitted to wireless space by forming a beam according to the determined beam index.

    Abstract translation: 提供了用于使正交频分复用接入(OFDMA)系统中的传输效率最大化的子信道分配和固定波束形成方法及其使用装置,以通过分配对每个用户有利的子信道来以最小的成本来去除干扰信号 设备。 基于每个用户设备的信道状态来确定每个用户设备的子信道。 基于每个用户设备的位置信息和到达方向信息来确定每个用户设备的光束索引。 通过将对应于每个用户设备的符号映射到所确定的子信道来生成OFDM(正交频分复用)符号。 所生成的OFDM符号通过根据确定的波束索引形成波束而被发送到无线空间。

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