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    • 3. 发明申请
    • Uplink transmission power control in wireless communication system
    • 无线通信系统中的上行链路传输功率控制
    • US20060034223A1
    • 2006-02-16
    • US11201958
    • 2005-08-10
    • Bong KimJoon AhnHak KimDong RohDong SeoSeung Won
    • Bong KimJoon AhnHak KimDong RohDong SeoSeung Won
    • H04B1/00H04Q7/00H04B7/216H04Q7/20H04B7/00
    • H04W52/146H04W52/267H04W52/38H04W52/40H04W52/44
    • A method of controlling uplink transmission of a user equipment in a soft handover mode in a wireless communication system comprises communicating with a first network and a second network, at a first transmission mode comprising a first transmission power level and a first data rate. The method also comprises receiving a first change command from the second network to change the first transmission mode to a second transmission mode, wherein the second transmission mode comprises a second transmission power level and a second data rate. The method also comprises entering the second transmission mode. The method also comprises maintaining the second transmission mode for a predetermined time period regardless of a second change command from the first network to increase at least one of transmission power level and data rate of the user equipment.
    • 在无线通信系统中以软切换模式控制用户设备的上行链路传输的方法包括以包括第一传输功率电平和第一数据速率的第一传输模式与第一网络和第二网络进行通信。 该方法还包括从第二网络接收第一改变命令以将第一传输模式改变为第二传输模式,其中第二传输模式包括第二传输功率电平和第二数据速率。 该方法还包括进入第二传输模式。 该方法还包括将第二传输模式保持预定时间段,而不管来自第一网络的第二改变命令如何增加用户设备的传输功率电平和数据速率中的至少一个。
    • 10. 发明申请
    • Wireless multiple access system for suppressing inter-cell interference
    • 用于抑制小区间干扰的无线多址系统
    • US20060187887A1
    • 2006-08-24
    • US11349648
    • 2006-02-07
    • Bong KimJoon AhnHak KimDong SeoDong Roh
    • Bong KimJoon AhnHak KimDong SeoDong Roh
    • H04B7/216
    • H04L5/023H04J13/0044H04J13/16H04L5/026H04L27/2602H04L27/2626
    • An OFDM based multiple access system provides strong persistence against selective frequency fading and further provides suppression of inter-cell interference by using cell differentiating scrambling codes. Thus, the OFDM system maximizes frequency reuse rate. The present invention includes an OFDM modulator frequency-division-multiplexing data to be transmitted, a code division unit multiplexing the frequency-division-multiplexed data with a prescribed code, and an RF end converting the data multiplexed by the code division unit to a radio frequency signal to transmit. Accordingly, the present invention raises the degree of freedom (frequency division, time division, code division) of system implementation in the multiple access system. The OFDM system includes the scrambling of the downlink data by different scrambling codes by a cell unit for base stations within at least two neighboring cells to identify the respective cells and transmitting the spread downlink data.
    • 基于OFDM的多址系统提供对选择性频率衰落的强持续性,并且还通过使用小区微分扰码来提供对小区间干扰的抑制。 因此,OFDM系统使频率重用率最大化。 本发明包括OFDM调制器对要发送的数据进行分频复用,将分频复用数据与规定码进行多路复用的码分割单元,以及将由码分割单元多路复用的数据转换为无线电 频率信号进行传输。 因此,本发明提高了多址系统中系统实现的自由度(分频,时分,码分割)。 OFDM系统包括通过不同扰码对由至少两个相邻小区内的基站的小区单元对下行链路数据进行加扰,以识别各个小区并发送扩展的下行链路数据。