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    • 9. 发明授权
    • Efficient frame tracking in mobile receivers
    • 移动接收机中高效的帧跟踪
    • US07603133B2
    • 2009-10-13
    • US11110164
    • 2005-04-20
    • Aykut BultanJohn W. HaimDonald Grieco
    • Aykut BultanJohn W. HaimDonald Grieco
    • H04B15/00
    • H04B1/7117H04B1/7073H04B1/70754H04B1/708H04B1/7095H04B2201/70701
    • A method for determining the validity of a most significant path in a wireless communication system wherein data is transmitted in frame units in a multipath environment begins by accumulating a correlated data sequence N times, each time at a frame offset apart from the previous time. A preliminary noise estimate (PNE) is calculated as an average of the accumulated data values. A preliminary noise threshold (PNT) is calculated according to the equation C1×PNE. A final noise estimate (FNE) is calculated as the average of accumulated data values below the PNT. A final noise threshold (FNT) is calculated according to the equation C2×FNE. The validity of the most significant path is determined if the most significant path value is greater than the FNT.
    • 用于确定无线通信系统中最重要路径的有效性的方法,其中以多路径环境中的帧为单位传输数据的开始是通过累积相关数据序列N次,每次与之前的时间相隔一帧偏移。 初步噪声估计(PNE)被计算为累积数据值的平均值。 根据等式C1xPNE计算初步噪声阈值(PNT)。 最终噪声估计(FNE)被计算为低于PNT的累积数据值的平均值。 根据等式C2xFNE计算最终噪声阈值(FNT)。 如果最显着的路径值大于FNT,则确定最重要路径的有效性。
    • 10. 发明申请
    • FAST ADAPTIVE POWER CONTROL FOR A VARIABLE MULTIRATE COMMUNICATIONS SYSTEM
    • 用于可变多路通信系统的快速自适应功率控制
    • US20090247212A1
    • 2009-10-01
    • US12470125
    • 2009-05-21
    • John W. Haim
    • John W. Haim
    • H04B7/005
    • H04W52/146H04W52/08H04W52/10H04W52/12H04W52/24H04W52/241H04W52/242H04W52/265H04W52/267H04W52/362
    • A system and a method of controlling transmitter power in a wireless communication system in which user data is processed as a multirate signal in which the user data signal having a first rate is converted into a transmission data signal having a faster second rate for transmission. The transmission power is adjusted on a relatively slow basis based on quality of data received by a receiver of the transmitted data. The transmitter power is determined as a function of the first and second rates such that a change in the data rate in the multiple channels or the rate of the transmission data signal is compensated in advance of a quality of data based adjustment associated with such data rate change. Preferably, the user data signal having the first rate is converted into the transmission data signal having the second faster rate by repeating selected data bits whereby the energy per bit to noise spectrum density ratio is increased in the transmission data signal.
    • 一种在无线通信系统中控制发射机功率的系统和方法,其中用户数据被处理为多速率信号,其中具有第一速率的用户数据信号被转换为具有更快的第二速率用于传输的传输数据信号。 基于发送数据的接收器接收的数据的质量,相对较慢地发送发送功率。 发射机功率被确定为第一和第二速率的函数,使得多个信道中的数据速率的变化或传输数据信号的速率在与这种数据速率相关联的基于数据的调整的质量之前被补偿 更改。 优选地,通过重复所选择的数据位,具有第一速率的用户数据信号被转换为具有第二较快速率的传输数据信号,由此在传输数据信号中每比特噪声频谱密度比的能量增加。