公开(公告)号：US07586979B2

公开(公告)日：2009-09-08

申请号：US12244521

申请日：2008-10-02

申请人： Alberto Serratore ,  Giuseppe Avellone ,  Francesco Rimi ,  Nicolo Ivan Piazzese ,  Agostino Galluzzo

发明人： Alberto Serratore ,  Giuseppe Avellone ,  Francesco Rimi ,  Nicolo Ivan Piazzese ,  Agostino Galluzzo

IPC分类号： H04B1/07

CPC分类号： H04L1/0071 ,  H04L1/0618

摘要： Encoded digital symbols are transmitted via a first pair of antennas and at least one second pair of antennas. The sets of symbols used for the transmission via the second pair of antennas are re-ordered temporally into subsets of symbols with respect to the symbols used for the first pair of antennas. For the first pair of antennas, there is used a signal subjected to encoding with a code-division-multiple-access code and subjected to spreading with a spreading code, and, likewise, for the second pair or pairs of antennas there are used signals subjected to encoding with respective code-division-multiple-access code and subjected to spreading with a respective spreading code. At least one between the respective code-division-multiple-access code and the respective spreading code used for the transmission via the second pair of antennas is different from the code-division-multiple-access code and from the spreading code used for the transmission via the first pair of antennas. The solution can be extended to the use of a plurality of second pairs of antennas in transmission and/or to the use of a plurality of antennas in reception.

摘要翻译： 编码的数字符号经由第一对天线和至少一个第二对天线发送。 用于经由第二对天线的传输的符号组被相对于用于第一对天线的符号在时间上重新排序成符号子集。 对于第一对天线，使用经码分多址的编码的信号，并用扩展码进行扩频，同样地，对于第二对或天线对，使用信号 对各个码分多址码进行编码，并用相应的扩展码进行扩频。 各代码分多址和用于通过第二对天线传输的各扩频码中的至少一个不同于码分多址码和用于传输的扩展码 通过第一对天线。 解决方案可以扩展到在传输中使用多个第二对天线和/或在接收中使用多个天线。

公开(公告)号：US07231195B2

公开(公告)日：2007-06-12

申请号：US10939472

申请日：2004-09-14

申请人： Takashi Nakayama

发明人： Takashi Nakayama

IPC分类号： H04B7/00 ,  H04B1/07

CPC分类号： H03G3/3052

摘要： Disclosed is a variable gain control circuit for executing automatic-gain-control on a variable gain amplification block composed of a plurality of amplifiers on which discrete gain setting is executed by a programmable-gain-amp method. A baseband amplifier (a variable gain amplifier) is composed of a plurality of amplifiers on which discrete gain setting is executed by a programmable-gain-amp method. A programmable-gain-amp control processing block references a programmable-gain-amp control data table on the basis of a difference between a current receive signal level and a predetermined receive signal level to determine the gain of the baseband amplifier, thereby making a programmable-gain-amp data generator generate programmable-gain-amp data. A programmable-gain-amp control processing block references a direct-current offset cancel table on the basis of current programmable-gain-amp data and next programmable-gain-amp data to generate corresponding direct-current offset cancel data, converts the generated direct-current offset cancel data into an analog voltage, and adds the analog voltage to the baseband amplifier output.

摘要翻译： 公开了一种可变增益控制电路，用于对由多个放大器组成的可变增益放大块执行自动增益控制，其中通过可编程增益放大法执行离散增益设置。 基带放大器（可变增益放大器）由多个放大器组成，其上通过可编程增益放大器方法执行离散增益设置。 可编程增益放大器控制处理块基于当前接收信号电平和预定接收信号电平之间的差异参考可编程增益放大器控制数据表，以确定基带放大器的增益，从而使可编程 增益数据发生器产生可编程增益放大器数据。 可编程增益放大器控制处理块基于当前可编程增益放大器数据和下一个可编程增益放大器数据参考直流偏移消除表，以产生相应的直流偏移消除数据，将所生成的直接 电流偏移取消数据为模拟电压，并将模拟电压加到基带放大器输出端。