Method for secure authentication of mobile devices
    11.
    发明申请
    Method for secure authentication of mobile devices 有权
    移动设备安全认证方法

    公开(公告)号:US20070178882A1

    公开(公告)日:2007-08-02

    申请号:US11343733

    申请日:2006-01-31

    IPC分类号: H04M1/66

    摘要: A method for authenticating a mobile device is provided. The method includes receiving a communication request from the mobile device. The mobile device is operable to exchange data over a primary channel. Authentication data is received from the mobile device over a second channel. The secondary channel is a short-range channel operable for exchanging data when the mobile device is within physical proximity. The authentication data is processed to determine whether the mobile device is a trusted device.

    摘要翻译: 提供了一种用于认证移动设备的方法。 该方法包括从移动设备接收通信请求。 移动设备可操作以通过主要信道交换数据。 通过第二个信道从移动设备接收认证数据。 辅助信道是当移动设备处于物理接近状态时可用于交换数据的短距离信道。 处理认证数据以确定移动设备是否是可信设备。

    Method and apparatus for self-tuning precoder
    12.
    发明授权
    Method and apparatus for self-tuning precoder 有权
    自调谐预编码器的方法和装置

    公开(公告)号:US08081560B2

    公开(公告)日:2011-12-20

    申请号:US11848684

    申请日:2007-08-31

    IPC分类号: H04J1/12

    CPC分类号: H04B3/32

    摘要: Techniques are disclosed for compensating for crosstalk using adaptation of data signals transmitted over respective channels of a communication system. For example, a method includes the following steps. A first set of estimated measures of crosstalk is obtained for at least a selected portion of a plurality of communication channels over which data signals are to be transmitted from a transmitter to at least a selected portion of a plurality of receivers. A first set of data signals based on the first set of estimated measures of crosstalk is adapted to generate a first set of adjusted data signals. The first set of adjusted data signals is transmitted to corresponding ones of the plurality of receivers. A second set of estimated measures of crosstalk is obtained for the selected portion of the plurality of communication channels. A second set of data signals for transmission based on the second set of estimated measures of crosstalk is adapted to generate a second set of adjusted data signals. Iteration of the obtaining, adjusting and transmitting steps is performed so as to reduce an error between subsequent estimated measures of crosstalk and actual measures of crosstalk for the plurality of communication channels.

    摘要翻译: 公开了用于通过在通信系统的各个信道上发送的数据信号的适配来补偿串扰的技术。 例如,一种方法包括以下步骤。 对于多个通信信道的至少一部分的数据信号将从发射机发送到多个接收机的至少一个选定部分,获得第一组估计的串扰度量。 基于第一组估计的串扰测量值的第一组数据信号适于产生第一组经调整的数据信号。 第一组经调整的数据信号被发送到多个接收机中的相应的一个。 针对多个通信信道的所选部分获得第二组估计的串扰度量。 用于基于第二组估计的串扰测量的用于传输的第二组数据信号适于产生第二组经调整的数据信号。 执行获取,调整和发送步骤的迭代,以减少后续估计的串扰测量与多个通信信道的串扰实际测量之间的误差。