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    • 2. 发明申请
    • METHOD FOR SELECTING AN OPERATING MODE BASED ON A DETECTED SYNCHRONIZATION PATTERN
    • 基于检测到的同步模式选择操作模式的方法
    • WO2004110075B1
    • 2005-12-08
    • PCT/US2004013265
    • 2004-04-29
    • MOTOROLA INCHIBEN BRADLEY MBIGGS ROBERT AMURI DAVID LNEWBERG DONALD GSTOGNER DARRELL JWILSON ALAN L
    • HIBEN BRADLEY MBIGGS ROBERT AMURI DAVID LNEWBERG DONALD GSTOGNER DARRELL JWILSON ALAN L
    • H04J3/06H04Q20060101
    • H04J3/0605H04L1/0025
    • A received synchronization pattern is compared against first and second known synchronization patterns. If the received pattern is substantially similar to the first known pattern, the payload is processed as voice; and if the received pattern is substantially similar to the second known pattern, the payload is processed as non-voice. Alternatively, a target synchronization pattern dependent on an operating mode is selected. The received pattern is compared against the target pattern. If the received pattern is substantially similar to the target pattern, the payload is processed; otherwise, the burst is discarded. In yet another alternative, the received pattern is compared against first and second known synchronization patterns having a common length. If the received pattern is substantially similar to the first known pattern, a first operating mode is selected, and if the received pattern is substantially similar to the second known pattern, a second operating mode is selected.
    • 将接收到的同步模式与第一和第二已知同步模式进行比较。 如果接收的模式与第一种已知模式基本相似,则将有效载荷作为语音进行处理; 并且如果所接收的模式与第二已知模式基本相似,则将有效载荷处理为非语音。 或者,选择取决于操作模式的目标同步模式。 接收到的模式与目标模式进行比较。 如果接收的模式与目标模式基本相似,则处理有效载荷; 否则,突发被丢弃。 在又一替代方案中,将所接收的模式与具有共同长度的第一和第二已知同步模式进行比较。 如果接收到的图案与第一已知图案基本相似,则选择第一操作模式,并且如果接收到的图案与第二已知图案基本相似,则选择第二操作模式。
    • 3. 发明申请
    • METHOD FOR SELECTING AN OPERATING MODE BASED ON A DETECTED SYNCHRONIZATION PATTERN
    • 基于检测同步模式选择操作模式的方法
    • WO2004110075A3
    • 2005-10-27
    • PCT/US2004013265
    • 2004-04-29
    • MOTOROLA INCHIBEN BRADLEY MBIGGS ROBERT AMURI DAVID LNEWBERG DONALD GSTOGNER DARRELL JWILSON ALAN L
    • HIBEN BRADLEY MBIGGS ROBERT AMURI DAVID LNEWBERG DONALD GSTOGNER DARRELL JWILSON ALAN L
    • H04J3/06H04Q20060101
    • H04J3/0605H04L1/0025
    • A received synchronization pattern is compared against first and second known synchronization patterns. If the received pattern is substantially similar to the first known pattern, the payload is processed as voice; and if the received pattern is substantially similar to the second known pattern, the payload is processed as non-voice. Alternatively, a target synchronization pattern dependent on an operating mode is selected. The received pattern is compared against the target pattern. If the received pattern is substantially similar to the target pattern, the payload is processed; otherwise, the burst is discarded. In yet another alternative, the received pattern is compared against first and second known synchronization patterns having a common length. If the received pattern is substantially similar to the first known pattern, a first operating mode is selected, and if the received pattern is substantially similar to the second known pattern, a second operating mode is selected.
    • 将接收到的同步模式与第一和第二已知同步模式进行比较。 如果接收到的模式基本上类似于第一已知模式,则净荷被处理为语音; 并且如果接收到的模式基本上类似于第二已知模式,则净荷被处理为非语音。 或者,选择取决于操作模式的目标同步模式。 将接收到的模式与目标模式进行比较。 如果接收到的图案基本上类似于目标图案,则处理有效载荷; 否则,突发被丢弃。 在另一替代方案中,将接收到的模式与具有公共长度的第一和第二已知同步模式进行比较。 如果所接收的图案基本上类似于第一已知图案,则选择第一操作模式,并且如果所接收的图案基本上类似于第二已知图案,则选择第二操作模式。
    • 4. 发明申请
    • METHOD AND APPARATUS FOR REMOVING DC OFFSET IN A DIRECT CONVERSION RECEIVER
    • 在直接转换接收器中移除直流偏置的方法和装置
    • WO2010065281A3
    • 2010-08-26
    • PCT/US2009064679
    • 2009-11-17
    • MOTOROLA INCSTOGNER DARRELL JRAO YADUNANDANA NRUELKE CHARLES RLAMPERT CHET A
    • STOGNER DARRELL JRAO YADUNANDANA NRUELKE CHARLES RLAMPERT CHET A
    • H04B1/30H04B17/40H03D1/04
    • H04B1/30H04L25/061
    • A method and apparatus for correcting direct current (DC) offset errors of a received signal in a direct conversion receiver (DCR) are provided. DC offset correction algorithms are incorporated into the DCR, each algorithm being optimized for a particular receive signal operating environment. The DC offset correction algorithms remove DC offset errors in baseband In-phase and Quadrature-phase signals received within the direct conversion receiver baseband signal path. Individual DC offset correction algorithms are selected for use as determined by a signal quality estimator component. A DC offset correction component of the direct conversion receiver determines an appropriate DC offset correction algorithm suited for a particular operating environment. A criterion for a signal quality estimate is set to control transitioning between DCOC algorithms. A dual threshold strategy may be adopted to transition between one DC offset correction algorithm and another DC offset correction algorithm to provide hysteresis.
    • 提供了用于校正直接转换接收机(DCR)中的接收信号的直流(DC)偏移误差的方法和装置。 DC偏移校正算法被并入到DCR中,每个算法针对特定的接收信号操作环境进行优化。 DC偏移校正算法消除了在直接转换接收机基带信号路径内接收到的基带同相和正交相信号中的直流失调误差。 选择单个DC偏移校正算法以由信号质量估计器组件确定使用。 直接转换接收机的DC偏移校正分量确定适合于特定操作环境的适当DC偏移校正算法。 设置信号质量估计的标准来控制DCOC算法之间的转换。 可以采用双阈值策略来在一个DC偏移校正算法和另一个DC偏移校正算法之间转换以提供滞后。
    • 6. 发明申请
    • IMPROVED ADJUSTMENT VALUE FOR INBOUND TIME-SLOTTED TRANSMISSIONS
    • 改进的时间间隔传输的调整值
    • WO2004095721A3
    • 2005-03-03
    • PCT/US2004007535
    • 2004-03-11
    • MOTOROLA INCLOGALBO ROBERT DCONRAD ALAN PSTOGNER DARRELL J
    • LOGALBO ROBERT DCONRAD ALAN PSTOGNER DARRELL J
    • H04L12/56H04J3/06
    • H04W56/004H04W56/006H04W56/007
    • A subscriber (1001) provides a cumulative adjustment value in memory. Upon transmission of the inbound signal to a base station (102), the subscriber (1001) receives a relative adjustment value. The base station (102) calculates the relative adjustment value based on receipt of the inbound signal against a time window. The subscriber (1001) sums the adjustment value with the cumulative adjustment value to create a new cumulative adjustment value. The subscriber (1001) stores the new cumulative adjustment value in memory, and a subsequent inbound signal is transmitted using the new cumulative adjustment value. Alternatively, the subscriber (1001) obtains a priori information as to when a base station (102) transmits a burst. Upon receipt of the burst, the subscriber (1001) calculates a time delay between when the burst was transmitted and when the burst was received. The subscriber (1001) stores the time delay, and advances the transmission timing by the time delay.
    • 订户(1001)在存储器中提供累积调整值。 在将入站信号发送到基站(102)时,订户(1001)接收相对调整值。 基站(102)基于对时间窗口的入站信号的接收来计算相对调整值。 订户(1001)将调整值与累积调整值相加以创建新的累积调整值。 订户(1001)将新的累积调整值存储在存储器中,并且使用新的累积调整值发送后续的入站信号。 或者,订户(1001)获得关于基站(102)何时发送突发的先验信息。 在接收到突发之后,用户(1001)计算在发送突发和接收到突发之间的时间延迟。 用户(1001)存储时间延迟,并且将发送定时提前时间延迟。
    • 8. 发明申请
    • CHANNEL CONDITION ESTIMATION FOR PILOT COEFFICIENT SELECTION
    • 导频系数选择的频道条件估计
    • WO2005046253A2
    • 2005-05-19
    • PCT/US2004033013
    • 2004-10-07
    • MOTOROLA INCPARK YOUNG-SEOSTOGNER DARRELL J
    • PARK YOUNG-SEOSTOGNER DARRELL J
    • H04K1/10H04L27/26H04Q20060101H04Q
    • H04L25/0232H04L5/0007H04L5/0048H04L25/0226
    • A multi-carrier modulation communications system and method (100) for providing channel estimation that uses a transmitter for inserting pilot symbols in a digital multi-carrier modulated radio frequency (RF) signal and a receiver for receiving the pilot symbols in multi-carrier modulation RF signal. In order to provide channel estimation the receiver detects (101) channel power gains from a plurality of designated pilot symbols and calculates (103) both a speed parameter (S) and a multi-path parameter (M) for the channel receiving the pilot symbols. A channel model is then defined (105) based upon the speed parameter and multi-path parameter value and a predefined set of pilot coefficients is chosen (107) that substantially matches the channel model. The resulting set of pilot coefficients is then utilized (109) for optimizing pilot symbol interpolation.
    • 一种多载波调制通信系统和方法(100),用于提供使用发射机在数字多载波调制射频(RF)信号中插入导频符号的信道估计和用于在多载波调制中接收导频符号的接收机 射频信号。 为了提供信道估计,接收机从多个指定的导频符号检测(101)信道功率增益,并计算(103)用于接收导频符号的信道的速度参数(S)和多径参数(M) 。 然后基于速度参数和多路径参数值定义(105)信道模型,并且选择基本上与信道模型匹配的预定义的导频系数集合(107)。 然后利用所得到的导频系数集合(109)来优化导频符号内插。