Multiple access up converter/modulator and method
    4.
    发明授权
    Multiple access up converter/modulator and method 失效
    多路存取转换器/调制器和方法

    公开(公告)号:US5854813A

    公开(公告)日:1998-12-29

    申请号:US912300

    申请日:1997-08-12

    IPC分类号: H04L27/20

    CPC分类号: H04L27/20

    摘要: A multiple access digital up converter/modulator includes selectors (1606, 1608) having inputs (1602, 1604) and outputs coupled to first and second interpolating filters (1610, 1626). The output of the first interpolating filter is selectively coupled to a first mixer (1612) and a first adder (1622), the first adder also receiving a first phase value and the output is coupled to a first phase accumulator (1616) the output of which is coupled to a first sinusoid generator (1614) and selectively coupled to a second sinusoid generator (1630). The output of each of the first and second mixers are selectively coupled to an output adder (1634) and to inputs of the first and second mixers. The output of the second interpolating filter (1626) is selectively coupled to a second mixer (1628) and a second adder (1638), which also receives a second phase value and the output of which is coupled to a second phase accumulator (1640) the output of which is selectively coupled to the second sinusoid generator. The output of each of the first and second mixers are selectively coupled to an output adder (1634).

    摘要翻译: 多址数字上变换器/调制器包括具有输入(1602,1604)的选择器(1606,1608)和耦合到第一和第二内插滤波器(1610,1626)的输出。 第一内插滤波器的输出选择性地耦合到第一混频器(1612)和第一加法器(1622),第一加法器还接收第一相位值,并且输出端耦合到第一相位累加器(1616) 其耦合到第一正弦波发生器(1614)并且选择性地耦合到第二正弦波发生器(1630)。 第一和第二混频器中的每一个的输出选择性地耦合到输出加法器(1634)和第一和第二混频器的输入端。 第二内插滤波器(1626)的输出选择性地耦合到第二混频器(1628)和第二加法器(1638),第二加法器(1638)还接收第二相位值,其输出耦合到第二相位累加器(1640) 其输出选择性地耦合到第二正弦波发生器。 第一和第二混频器中的每一个的输出选择性地耦合到输出加法器(1634)。

    Method and apparatus for encryption of over-the-air communications in a wireless communication system
    5.
    发明授权
    Method and apparatus for encryption of over-the-air communications in a wireless communication system 有权
    用于在无线通信系统中加密空中通信的方法和装置

    公开(公告)号:US07804912B2

    公开(公告)日:2010-09-28

    申请号:US11209058

    申请日:2005-08-22

    摘要: A communication device converts a bit stream to multiple symbols and provides encryption at a physical layer by shifting a phase of each symbol of the multiple symbols to produce multiple encrypted symbols. Each encrypted symbol of the multiple encrypted symbols is modulated with an orthogonal subcarrier to produce at least one modulated subcarrier and the at least one modulated subcarrier is then transmitted via a wireless link. On a receive side, a receiving communication device receives the transmitted, encrypted symbols and provides decryption at a physical layer by shifting a phase of each encrypted symbol in correspondence with the phase used to encrypt the symbol at the transmit side.

    摘要翻译: 通信设备将比特流转换为多个符号,并通过移位多个符号的每个符号的相位来产生多个加密符号,从而在物理层提供加密。 用正交子载波调制多个加密符号的每个加密符号,以产生至少一个经调制的子载波,然后经由无线链路发送至少一个经调制的副载波。 在接收侧,接收通信设备接收所发送的加密符号,并且通过根据用于在发送侧加密符号的相位来移位每个加密符号的相位,在物理层提供解密。

    Method and apparatus for implementing PN masks for a truncated M-sequence
    6.
    发明授权
    Method and apparatus for implementing PN masks for a truncated M-sequence 有权
    用于实现截断的M序列的PN掩模的方法和装置

    公开(公告)号:US06246676B1

    公开(公告)日:2001-06-12

    申请号:US09459688

    申请日:1999-12-13

    IPC分类号: H04B7216

    摘要: Method and apparatus to provide a pseudo random noise (PN) sequence having a particular code phase offset for use in a radio in a Code Division Multiple Access (CDMA) radio system (100). In one embodiment, a first mask (320) is applied to shift a reference PN sequence to the assigned PN code phase (416). Upon reaching the end of the reference PN sequence, the initial state is reloaded (420) into the PN generator state register to reset the state value to its initial value, thereby producing a cyclical sequence. In a second embodiment, a first mask (622) and a second mask (624) are applied to the reference sequence produced by the PN generator state registers (620) to produce the appropriate portions of the output sequence.

    摘要翻译: 提供具有用于码分多址(CDMA)无线电系统(100)中的无线电中的特定码相位偏移的伪随机噪声(PN)序列的方法和装置。 在一个实施例中,施加第一掩模(320)以将参考PN序列移位到所分配的PN码相位(416)。 在到达参考PN序列的末尾时,将初始状态重新加载(420)到PN发生器状态寄存器中,以将状态值重置为其初始值,从而产生循环序列。 在第二实施例中,将第一掩模(622)和第二掩模(624)应用于由PN发生器状态寄存器(620)产生的参考序列,以产生输出序列的适当部分。

    Transmitter which adjusts peak-to-average power of a multicarrier signal
by switching between a group of channels and a phase-adjusted group of
channels
    7.
    发明授权
    Transmitter which adjusts peak-to-average power of a multicarrier signal by switching between a group of channels and a phase-adjusted group of channels 失效
    发射机,其通过在一组信道和经相位调整的信道组之间切换来调整多载波信号的峰均功率

    公开(公告)号:US5710990A

    公开(公告)日:1998-01-20

    申请号:US619391

    申请日:1996-03-21

    摘要: An apparatus (10) for adjusting peak-to-average power of a multicarrier signal. The apparatus (10) comprises a first (26) and second (28) combiner, a phase-changing device (30), and a switch (36). The first combiner (26) receives a first group of channels (20) and a second group of channels (22) and produces a first combined signal (46). The phase-changing device (30) receives the first group of channels (20) and produces a group of phase-adjusted channels. The second combiner (28) receives the phase-adjusted channels and the second group of channels (22) and produces a second combined signal (48), and the switch (36) responds to the first (26) and second (28) combiners and selects at least one of the first (46) and second (48) combined signals.

    摘要翻译: 一种用于调整多载波信号的峰均功率的装置(10)。 装置(10)包括第一(26)和第二(28)组合器,相变装置(30)和开关(36)。 第一组合器(26)接收第一组信道(20)和第二组信道(22)并产生第一组合信号(46)。 相变装置(30)接收第一组信道(20)并产生一组相位调整的信道。 第二组合器(28)接收相位调整的通道和第二组通道(22)并产生第二组合信号(48),并且开关(36)响应第一(26)和第二(28)组合器 并选择第一(46)和第二(48)组合信号中的至少一个。

    Methods for managing data transmission between at least two different data regions
    9.
    发明授权
    Methods for managing data transmission between at least two different data regions 有权
    用于管理至少两个不同数据区域之间的数据传输的方法

    公开(公告)号:US07602714B2

    公开(公告)日:2009-10-13

    申请号:US11026923

    申请日:2004-12-30

    IPC分类号: H04L12/26 H04Q7/00

    CPC分类号: H04W28/16 H04W36/00

    摘要: In the present technique of data transmission management provided, a composite status indicator value is assessed (716) based on multiple channel quality indicator reports over a predefined time. The assessed composite status indicator value is compared (718) to a first threshold value. If the assessed composite status indicator value does not correspond in at least a predetermined way to the first threshold value, the mobile station is classified (720) in a high speed data region. Otherwise, the assessed composite status indicator value is further compared (726) to a second threshold, and if it corresponds in at least a predetermined way to the second threshold, the mobile station is classified (734) in the low speed data region.

    摘要翻译: 在提供的数据传输管理的当前技术中,基于多个信道质量指示符报告在预定时间内评估复合状态指示符值(716)。 将评估的复合状态指标值与第一阈值进行比较(718)。 如果评估的复合状态指示符值至少以预定方式对应于第一阈值,则移动站在高速数据区域中被分类(720)。 否则,将评估的复合状态指示符值进一步比较(726)到第二阈值,并且如果其以至少预定方式对应于第二阈值,则在低速数据区域中对移动站进行分类(734)。

    METHOD AND APPARATUS FOR A VIRTUAL CIRCUIT DATA AREA WITHIN A PACKET DATA FRAME
    10.
    发明申请
    METHOD AND APPARATUS FOR A VIRTUAL CIRCUIT DATA AREA WITHIN A PACKET DATA FRAME 审中-公开
    用于分组数据帧中的虚拟电路数据区域的方法和装置

    公开(公告)号:US20090109960A1

    公开(公告)日:2009-04-30

    申请号:US11929000

    申请日:2007-10-30

    IPC分类号: H04L12/66

    摘要: A method and apparatus for a virtual circuit data area within a packet data frame is disclosed. The method may include operating (320) in a multiple connections sharing packet data frame structure with a packet oriented switching wireless access point and a related network for providing data to a wireless communication device engaged in data communications and determining (330) if a pseudo-circuit switched data area within a packet data frame format is optimal for a connection. The method may also include setting up (340) a virtual circuit data area within a packet data frame using a control configuration if a pseudo-circuit switched data area within a packet data frame format is optimal for a connection and sending (350) data in the virtual circuit data area.

    摘要翻译: 公开了一种分组数据帧内的虚拟电路数据区域的方法和装置。 该方法可以包括在具有面向分组的交换无线接入点的共享分组数据帧结构的多个连接中操作(320)和用于向参与数据通信的无线通信设备提供数据的相关网络,并且确定(330) 分组数据帧格式内的电路交换数据区域对于连接是最佳的。 该方法还可以包括:如果分组数据帧格式内的伪电路交换数据区域对于连接是最佳的并且使用控制配置发送(350)数据,则在分组数据帧内建立(340)虚拟电路数据区域 虚拟电路数据区。