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    • 3. 发明授权
    • Millimeter wave beaconing with directional antennas
    • 带定向天线的毫米波信号
    • US08472497B2
    • 2013-06-25
    • US12248771
    • 2008-10-09
    • Ismail Lakkis
    • Ismail Lakkis
    • H04B1/69
    • H04J13/16H04J13/0014H04J13/0055H04J13/105H04W16/28H04W48/12
    • A wireless device comprises a code-assignment module configured for assigning Golay codes to be used for spreading, a spreading module configured for spreading data with the Golay codes to produce a signal, wherein the Golay codes are randomly used to spread the data, and a transmitter configured for transmitting the signal. The wireless device may transmit a first beacon signal via a set of quasi-omni beam patterns, and a second beacon signal via a set directional beam patterns. The first beacon signal has a first transmission rate that is higher than the second beacon signal's the transmission rate. Extended Golay codes having zero periodic cross-correlation may be generated from a Golay code and a set of short sequences. A data block transmitted by the wireless device may comprise Golay codes and data portions, wherein every data portion is between two Golay codes and every Golay code is between two data portions.
    • 一种无线装置,包括配置用于分配要用于扩展的Golay码的码分配模块,配置成用Golay码扩展数据以产生信号的扩展模块,其中随机使用Golay码来传播数据, 发射机被配置为发送信号。 无线设备可以经由一组准全波束模式发送第一信标信号,并且经由设置的定向波束模式发送第二信标信号。 第一信标信号具有比第二信标信号的传输速率高的第一传输速率。 可以从Golay码和一组短序列生成具有零周期互相关的扩展Golay码。 由无线设备发送的数据块可以包括Golay码和数据部分,其中每个数据部分在两个Golay码之间,并且每个Golay码在两个数据部分之间。
    • 8. 发明申请
    • Process for generating codes for CDMA communications, system and computer program product therefor
    • 用于生成CDMA通信代码的过程,系统和计算机程序产品
    • US20030223397A1
    • 2003-12-04
    • US10383872
    • 2003-03-07
    • STMicroelectronics S.r.l.
    • Daniele Lo IaconoEttore MessinaGiuseppe AvelloneAgostino Galluzzo
    • H04B007/216
    • H04J13/105H04J13/0025
    • To generate the main scrambling code of order N and the secondary scrambling code of order K within the set identified by the primary scrambling code of order N, a first m-sequence and a second m-sequence are generated using Fibonacci linear feedback shift registers. The first m-sequence and the second m-sequence are modulo-2 added to form the I branch of the primary scrambling code. A first T-bit masking word and a second T-bit masking word of rank 0 are generated that correspond to the polynomial time shifts, and the intermediate taps of the X and y registers respectively chosen by the masking words are modulo-2 added so as to generate a third sequence and a fourth sequence, which are modulo-2 added together to form the Q branch of the primary scrambling code. Starting from the least significant Kmax bits of the register X, of the K-th intermediate tap corresponding to the secondary scrambling code of order K within the set identified by the primary scrambling code of order N, a fifth sequence is generated, which, modulo-2 added to the second sequence, forms the I branch of the secondary scrambling code. By modulo-2 summing the intermediate taps of the register X masked by the first masking word of rank N, a sixth sequence is generated, which, modulo-2 added to the fourth sequence, forms the Q branch of the secondary scrambling code.
    • 为了产生N阶的主扰码和由次序N的主扰码识别的集合内的次序K的次扰码,使用斐波纳契线性反馈移位寄存器生成第一m序列和第二m序列。 第一个m序列和第二个m序列被模2加上以形成主扰码的I分支。 产生对应于多项式时移的第一T位屏蔽字和秩0的第二T位屏蔽字,并且分别由掩蔽字选择的X和Y寄存器的中间抽头被模2相加 以产生模2加在一起以形成主扰码的Q分支的第三序列和第四序列。 从与由次序N的主扰码识别的集合内的次序K的次扰码相对应的第K个中间抽头的寄存器X的最低有效Kmax位开始,产生第五个序列,模数 -2加到第二个序列,形成二次扰码的I分支。 通过对由N级的第一掩蔽字掩蔽的寄存器X的中间抽头进行模2求和,生成第六序列,其中第二序列被加到第四序列上的模2形成二次扰码的Q分支。