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    • 1. 发明申请
    • METHOD AND APPARATUS FOR POSITION SIGNAL ASSISTED WINDOW PLACEMENT
    • 位置信号辅助窗口放置的方法和装置
    • WO2010138590A2
    • 2010-12-02
    • PCT/US2010036201
    • 2010-05-26
    • QUALCOMM INCWALKER GORDON KCHARI MURALI RLING FUYUN
    • WALKER GORDON KCHARI MURALI RLING FUYUN
    • H04L27/26
    • H04L27/2688H04L1/20H04L25/0216H04L27/2665H04L27/2695
    • Methods and circuits for positioning a signal sampling window within a wireless receiver device for use in a multi-transmitter wireless broadcast network include generating a long channel model based upon a signal identifying transmitters that can be processed without aliases, and positioning the signal sampling window based upon the long channel model. For example, in a MediaFLO® broadcast, the long channel model may be generated by receiving positioning pilot channel (PPC) signals. Positions for the signal sampling window may be determined by identifying hypothetical signal sampling window positions, calculating signal to interference and noise ratio (SINR) values for each identified hypothetical, and selecting the hypothetical with the best SINR. Using a long channel model to position the signal sampling window may provide improved window placement, reduce destructive aliasing, and reduce a time guard in the window placement. The long channel model may be used in conjunction with terrain databases.
    • 用于在无线接收机设备内定位用于多发射机无线广播网络中的信号采样窗口的方法和电路包括基于识别可以在没有别名的情况下被处理的发射机的信号来生成长信道模型,并且基于信号采样窗口 在长渠道模式。 例如,在MediaFLO®广播中,可以通过接收定位导频信道(PPC)信号来生成长信道模型。 信号采样窗口的位置可以通过识别假设信号采样窗口位置,为每个识别的假设计算信号与干扰和噪声比(SINR)值并选择具有最佳SINR的假设来确定。 使用长通道模型来定位信号采样窗口可以提供改进的窗口放置,减少破坏性混叠,并减少窗口位置中的时间守卫。 长通道模型可以与地形数据库结合使用。
    • 2. 发明申请
    • FEC ALTERNATIVES TO THE REED-SOLOMON OUTER CODE
    • 反向代替外部代码的FEC替代
    • WO2010118363A3
    • 2011-01-13
    • PCT/US2010030592
    • 2010-04-09
    • QUALCOMM INCGHOLMIEH RALPH AWALKER GORDON K
    • GHOLMIEH RALPH AWALKER GORDON K
    • H04L1/00
    • H04L1/0075H04L1/005H04L1/0065H04L1/0066
    • Methods, systems, and apparatus, including computer programs encoded on computer storage media, for encoding data for transmission on a communication link of a content delivery system includes: receiving (1002) data to be communicated to a device, the data received as a multiple data link layer packets of a logical channel carrying broadcast data; encoding (1004) the multiple data link layer packets of the logical channel as one outer codeword using an outer code at an outer code rate; encoding (1006) symbols of the outer codeword with an inner code; and indicating (1008) the outer code and the outer code rate through signaling, including setting a first value for a first field of a control channel and setting a second value for a second field of the control channel, wherein the first value is determined by the outer code, and the second value is determined by the outer code rate.
    • 方法,系统和装置,包括在计算机存储介质上编码的计算机程序,用于编码用于在内容传送系统的通信链路上进行传输的数据,包括:接收(1002)待传送到设备的数据,以多个接收的数据 承载广播数据的逻辑信道的数据链路层分组; 使用外部码率的外部码将所述逻辑信道的多个数据链路层分组编码(1004)作为一个外部码字; 用内码对外码字进行编码(1006)符号; 并且通过信令指示(1008)外码和外码率,包括设置控制信道的第一字段的第一值并为控制信道的第二字段设置第二值,其中第一值由 外码,第二值由外码率决定。