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    • 101. 发明授权
    • Method of changing frequency assignment status in broadband wireless access system
    • 在宽带无线接入系统中改变频率分配状态的方法
    • US08681732B2
    • 2014-03-25
    • US12808493
    • 2008-10-14
    • Chul ParkKwang Jae LimHyun LeeChul Sik Yoon
    • Chul ParkKwang Jae LimHyun LeeChul Sik Yoon
    • H04W4/00
    • H04W36/06H04W36/22H04W72/0453
    • The present invention relates to a method of changing a frequency assignment (FA) status in an improved broadband wireless access system where terminals and base stations communicate with each other by using a plurality of FAs. The base station changes the status of one of secondary FA into the status of the pFA in order to adjust a load of the primary FA, and communicates with the terminal through the pFA of which status is changed. When a response is received from the terminal, the base station changes the status of the pFA and communicates with the pFA of the terminal through a new pFA. The status of a previous pFA between the base station and the terminal is changed into the status of the sFA, and a previous sFA is changed into the pFA, so that communication is performed through new FAs.
    • 本发明涉及一种在改进的宽带无线接入系统中改变频率分配(FA)状态的方法,其中终端和基站通过使用多个FA彼此通信。 基站将一个辅助FA的状态改变为pFA的状态,以调整主FA的负载,并通过其状态改变的pFA与终端通信。 当从终端接收到响应时,基站改变pFA的状态,并通过新的pFA与终端的pFA进行通信。 基站和终端之间的先前pFA的状态被改变为sFA的状态,并且先前的sFA被改变为pFA,以便通过新的FA进行通信。
    • 103. 发明申请
    • FEMTOCELL SEARCH METHOD FOR MACRO TO FEMTO HANDOVER
    • FEMTOCELL搜索方法用于宏观切割
    • US20110105129A1
    • 2011-05-05
    • US13001533
    • 2009-03-26
    • Won-Ik KimKwang Jae LimSung Cheol ChangSung-Geun JinHyun LeeChul Sik Yoon
    • Won-Ik KimKwang Jae LimSung Cheol ChangSung-Geun JinHyun LeeChul Sik Yoon
    • H04W36/00
    • H04W36/0083
    • The present invention relates to a femtocell search method for a handover from a macrocell to a femtocell. The present invention relates to a method for a terminal that accesses a macrocell to search a femtocell in an environment where a plurality of femtocells are overlapped in one macrocell. The terminal searches a femtocell by using a dummy preamble in order to minimize the size of neighbor cell lists broadcasted from the macrocell to the terminal. Therefore, according to the present invention, an MAC overhead can be minimized by eliminating neighbor femtocell lists in a mobile neighbor advertisement (MOB_NBR_ADV) message broadcasted from the macrocell, and the terminal can search a femtocell with a minimum scanning load by checking only a femtocell dummy preamble in a dedicated symbol of the macrocell.
    • 本发明涉及一种用于从宏小区到毫微微小区切换的毫微微小区搜索方法。 本发明涉及一种在一个宏小区中多个毫微微小区重叠的环境中访问宏小区来搜索毫微微小区的终端的方法。 终端通过使用伪前导码来搜索毫微微小区,以便最小化从宏小区向终端广播的相邻小区列表的大小。 因此,根据本发明,通过消除从宏小区广播的移动邻居广播(MOB_NBR_ADV)消息中的邻居毫微微小区列表,可以最小化MAC开销,并且终端可以通过仅检查毫微微小区来搜索具有最小扫描负载的毫微微小区 在宏小区的专用符号中的伪前导码。
    • 110. 发明授权
    • Power control and resource management method of femtocell base station in wideband wireless access system
    • 宽带无线接入系统中毫微微小区基站的功率控制和资源管理方法
    • US08301183B2
    • 2012-10-30
    • US12603892
    • 2009-10-22
    • Sung Kyung KimChul Sik Yoon
    • Sung Kyung KimChul Sik Yoon
    • H04W4/00H04B7/00
    • H04W52/245H04W52/16H04W52/244H04W84/045
    • Provided is a power control method and resource management method of a femtocell base station in a wideband wireless access system. A macrocell base station receives received signal strength from a femtocell base station in a macrocell of the macrocell base station, compares it with received signal strength reported by a terminal in the macrocell, and when a difference between the two received signal strength is less than a threshold value, it receives received signal strength on a signal received by the terminals in the macrocell from the corresponding femtocell base station. Further, the macrocell base station determines whether the corresponding macrocell terminal is located in the coverage of the femtocell base station based on the reported received signal strength of the femtocell base station, and transmits information for controlling power of the femtocell base station or managing a radio resource to the femtocell base station according to the determination result.
    • 提供了一种在宽带无线接入系统中的毫微微小区基站的功率控制方法和资源管理方法。 宏小区基站从宏小区基站的宏小区中的毫微微小区基站接收接收信号强度,将其与由宏小区中的终端报告的接收信号强度进行比较,并且当两个接收信号强度之间的差小于 阈值,它从对应的毫微微小区基站的宏小区中的终端接收的信号上接收接收信号强度。 此外,宏小区基站基于所报告的毫微微小区基站的接收信号强度来判定对应的宏小区终端是否位于毫微微小区基站的覆盖范围内,并且发送用于控制毫微微小区基站的功率或管理无线电的信息 资源根据确定结果到毫微微小区基站。