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    • 5. 发明授权
    • Method and apparatus for channel estimation and cell search in cellular communication systems, and corresponding computer program product
    • 用于蜂窝通信系统中的信道估计和小区搜索的方法和装置,以及相应的计算机程序产品
    • US07480354B2
    • 2009-01-20
    • US11051561
    • 2005-02-04
    • Francesco RimiAlberto SerratoreGiuseppe AvelloneFrancesco PappalardoAgostino Galluzzo
    • Francesco RimiAlberto SerratoreGiuseppe AvelloneFrancesco PappalardoAgostino Galluzzo
    • H03D1/00H04B7/216
    • H04B1/7083H04B1/70735H04B2201/7071
    • In order to perform, according to a received signal (r), a channel-estimation procedure and a cell-search procedure in cellular communication systems, there are executed at least one first operation of correlation of said received signal (r) with secondary synchronization codes (SSC) and a second operation of correlation of said received signal (r) with known midamble codes (mid, MPL, MPS), whilst said channel-estimation procedure comprises a third operation of correlation of at least part of said received signal (r) with known midamble codes (mid, MPL, MPS), said first, second, and third correlation operation being executed by sending at least part (emidamble) of said received signal (r) to an input of a correlation bank. There are envisaged the operations of: sending, in a first time interval, the received signal (r) to said correlation bank for executing the first operation of correlation of said received signal (r) with secondary synchronization codes (SSC); sending, in a second time interval, at least part (emidamble) of said received signal (r) to said same correlation bank for executing the second operation of correlation of said received signal (r) with known midamble codes (mid, MPL, MPS); sending, in a second time interval, the received signal (r) to said same correlation bank for executing the third operation of correlation of at least part (emidamble) of said received signal (r) with known midamble codes (mid, MPL, MPS). Possible application is in mobile communication systems based upon standards such as UMTS, CDMA2000, IS95 or WBCDMA.
    • 为了根据接收到的信号(r)执行蜂窝通信系统中的信道估计过程和小区搜索过程,执行所述接收信号(r)与辅助同步的相关的至少一个第一操作 代码(SSC)和所述接收信号(r)与已知中间码(mid,MPL,MPS)的相关的第二操作,而所述信道估计过程包括所述接收信号的至少一部分 所述第一,第二和第三相关运算是通过将所述接收信号(r)的至少一部分(emidamble)发送到相关库的输入来执行的。 设想了以下操作:在第一时间间隔中将接收信号(r)发送到所述相关库,以执行所述接收信号(r)与辅同步码(SSC)的相关的第一操作; 在第二时间间隔中将所述接收信号(r)的至少一部分(emidamble)发送到所述相关相关库,以执行所述接收信号(r)与已知中间码(mid,MPL,MPS)的相关性的第二操作 ); 将所接收的信号(r)在第二时间间隔中发送到所述相关相关库,以执行所述接收信号(r)的至少部分(emidamble)与已知中间码(mid,MPL,MPS)的相关的第三操作 )。 可能的应用是基于UMTS,CDMA2000,IS95或WBCDMA等标准的移动通信系统。
    • 6. 发明申请
    • Method and apparatus for channel estimation and cell search in cellular communication systems, and corresponding computer program product
    • 用于蜂窝通信系统中的信道估计和小区搜索的方法和装置,以及相应的计算机程序产品
    • US20050227725A1
    • 2005-10-13
    • US11051561
    • 2005-02-04
    • Francesco RimiAlberto SerratoreGiuseppe AvelloneFrancesco PappalardoAgostino Galluzzo
    • Francesco RimiAlberto SerratoreGiuseppe AvelloneFrancesco PappalardoAgostino Galluzzo
    • H04B1/707H04B7/00
    • H04B1/7083H04B1/70735H04B2201/7071
    • In order to perform, according to a received signal (r), a channel-estimation procedure and a cell-search procedure in cellular communication systems, there are executed at least one first operation of correlation of said received signal (r) with secondary synchronization codes (SSC) and a second operation of correlation of said received signal (r) with known midamble codes (mid, MPL, MPS), whilst said channel-estimation procedure comprises a third operation of correlation of at least part of said received signal (r) with known midamble codes (mid, MPL, MPS), said first, second, and third correlation operation being executed by sending at least part (emidamble) of said received signal (r) to an input of a correlation bank. There are envisaged the operations of: sending, in a first time interval, the received signal (r) to said correlation bank for executing the first operation of correlation of said received signal (r) with secondary synchronization codes (SSC); sending, in a second time interval, at least part (emidamble) of said received signal (r) to said same correlation bank for executing the second operation of correlation of said received signal (r) with known midamble codes (mid, MPL, MPS); sending, in a second time interval, the received signal (r) to said same correlation bank for executing the third operation of correlation of at least part (emidamble) of said received signal (r) with known midamble codes (mid, MPL, MPS). Possible application is in mobile communication systems based upon standards such as UMTS, CDMA2000, IS95 or WBCDMA.
    • 为了根据接收到的信号(r)执行蜂窝通信系统中的信道估计过程和小区搜索过程,执行所述接收信号(r)与辅助同步的相关的至少一个第一操作 代码(SSC)和所述接收信号(r)与已知中间码(mid,MPL,MPS)的相关的第二操作,而所述信道估计过程包括所述接收信号的至少一部分 所述第一,第二和第三相关运算是通过将所述接收信号(r)的至少一部分(e midamble)发送到 相关银行的输入。 设想了以下操作:在第一时间间隔中将接收信号(r)发送到所述相关库,以执行所述接收信号(r)与辅同步码(SSC)的相关的第一操作; 在第二时间间隔中将所述接收信号(r)的至少一部分(e中间码)发送到所述相关相关库,以执行所述接收信号(r)与已知的 中号码(中,MPL,MPS); 在第二时间间隔中将接收到的信号(r)发送到所述相关相关库,以执行所述接收信号(r)的至少部分(e> mid amble amble amble amble)与已知的 midamble码(mid,MPL,MPS)。 可能的应用是基于UMTS,CDMA2000,IS95或WBCDMA等标准的移动通信系统。
    • 10. 发明授权
    • Method for transmitting signals using antenna diversity, for instance in mobile communication systems, transmitter, receiver and computer program product therefor
    • 使用天线分集发送信号的方法,例如在移动通信系统,发射机,接收机和计算机程序产品中
    • US07586979B2
    • 2009-09-08
    • US12244521
    • 2008-10-02
    • Alberto SerratoreGiuseppe AvelloneFrancesco RimiNicolo Ivan PiazzeseAgostino Galluzzo
    • Alberto SerratoreGiuseppe AvelloneFrancesco RimiNicolo Ivan PiazzeseAgostino Galluzzo
    • H04B1/07
    • H04L1/0071H04L1/0618
    • 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.
    • 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。