Wireless communication coding and transmission systems and methods
    8.
    发明授权
    Wireless communication coding and transmission systems and methods 有权
    无线通信编码和传输系统及方法

    公开(公告)号:US07508791B2

    公开(公告)日:2009-03-24

    申请号:US11263893

    申请日:2005-10-31

    IPC分类号: H04L12/56

    摘要: In a wireless communication system, data is encoded by packet indifferent (PI) coding and some packets are transmitted omnidirectionally while supplemental packets are transmitted directionally to a user with a poor air link. PI encoding is defined herein as encoding in which the source data can be recovered from any K of the encoded packets, regardless of which of the encoded packets are received, where K=N+A. N is equal to the number of packets in the source data and A is the number of additional packets required due to the PI encoding. A subset of M data packets can be sent to one or many users from an omnidirectional antenna, where M is greater than or equal to K. If less than K data packets are received by at least one user, then the data block is not successfully received by that user. A number R of supplemental packets can be sent to users that did not receive K data packets successfully. The supplemental packets can be sent by a directional antenna to the specific user or users that did not receive K data packets.

    摘要翻译: 在无线通信系统中,通过分组无关(PI)编码对数据进行编码,并且一些分组被全向传输,而补充分组被定向地传送给具有差的空中链路的用户。 PI编码在这里被定义为可以从任何K个编码分组恢复源数据的编码,而不管接收到哪个编码分组,其中K = N + A。 N等于源数据中的数据包数,A是由于PI编码而需要的附加数据包的数量。 M数据分组的子集可以从全向天线发送给一个或多个用户,其中M大于或等于K.如果少于K个数据分组被至少一个用户接收,则数据块不成功 由该用户接收。 补充数据包R可以发送给没有成功接收K个数据包的用户。 可以通过定向天线将补充分组发送给不接收K个数据分组的特定用户或用户。

    Systems and methods for blind source separation of wireless communication signals
    9.
    发明授权
    Systems and methods for blind source separation of wireless communication signals 失效
    用于盲源分离无线通信信号的系统和方法

    公开(公告)号:US07231227B2

    公开(公告)日:2007-06-12

    申请号:US10929847

    申请日:2004-08-30

    IPC分类号: H04B1/38 H04M1/00

    CPC分类号: H04L25/03006

    摘要: A multi-mode receiver and methods are provided, which use blind source separation (BSS) analysis to distinguish the various wireless communication signals from each other. Specifically, different signal types can be identified by BSS. The different signal types can be in overlapping frequencies or they can be in completely different frequencies. The BSS analysis may use center or carrier frequency, bandwidth, modulation scheme, access scheme, or wireless communication resources as an input to assist in the BSS.

    摘要翻译: 提供了一种多模式接收机和方法,其使用盲源分离(BSS)分析来区分各种无线通信信号。 具体来说,BSS可以识别不同的信号类型。 不同的信号类型可以是重叠频率,也可以是完全不同的频率。 BSS分析可以使用中心或载波频率,带宽,调制方案,接入方案或无线通信资源作为输入来协助BSS。

    Antenna system having receiver antenna diversity and configurable transmission antenna and method of management thereof
    10.
    发明申请
    Antenna system having receiver antenna diversity and configurable transmission antenna and method of management thereof 有权
    具有接收机天线分集和可配置发射天线的天线系统及其管理方法

    公开(公告)号:US20070188390A1

    公开(公告)日:2007-08-16

    申请号:US11353267

    申请日:2006-02-13

    IPC分类号: H01Q1/24

    摘要: An antenna system comprises a receive diversity antenna system and a configurable antenna arrangement. Incoming signals are received through the receive diversity antenna system and outgoing signals are transmitted through the configurable antenna arrangement. A controller generates control signals to adjust the configurable antenna arrangement to change the transmission performance characteristics of the configurable antenna arrangement. The configurable antenna arrangement may be a smart antenna, a plurality of antennas, or a configurable antenna where transmission characteristics change in response to control signals.

    摘要翻译: 天线系统包括接收分集天线系统和可配置天线装置。 通过接收分集天线系统接收输入信号,并通过可配置的天线装置传输输出信号。 控制器产生控制信号以调整可配置天线布置以改变可配置天线布置的传输性能特性。 可配置天线布置可以是智能天线,多个天线或其中传输特性响应于控制信号而改变的可配置天线。