Wlan communication system and method with mobile base station

    公开(公告)号:AU2003298039A8

    公开(公告)日:2004-07-29

    申请号:AU2003298039

    申请日:2003-12-04

    Applicant: MOTOROLA INC

    Abstract: A WLAN communication system (10) and method employs mobile WLAN base stations (16) that include WLAN transceivers (26) and memory (30) for storing received messages from one or more mobile WLAN devices (12a-12n). The mobile WLAN base stations (16) serve as moving message carriers or message repeaters of messages for the mobile WLAN devices. In one embodiment, a mobile WLAN base station (16) receives messages transmitted by several mobile WLAN devices (12a-12n), temporarily stores the received messages, and delivers the stored messages to a fixed WLAN base station or another mobile WLAN base station when the mobile WLAN base station (16) moves to within communication range of the applicable fixed or other mobile WLAN base station.

    METHOD AND APPARATUS FOR ENHANCING THE ACCURACY AND SPEED OF A RAY LAUNCHING SIMULATION TOOL
    24.
    发明申请
    METHOD AND APPARATUS FOR ENHANCING THE ACCURACY AND SPEED OF A RAY LAUNCHING SIMULATION TOOL 审中-公开
    提高射程模拟工具精度和速度的方法和装置

    公开(公告)号:WO2009073334A2

    公开(公告)日:2009-06-11

    申请号:PCT/US2008083297

    申请日:2008-11-13

    CPC classification number: G06F17/5009 G06F2217/10 G06F2217/78

    Abstract: A method (600) and simulation tool (200) having enhanced accuracy and speed for simulation using ray launching in a mixed environment (20) by using adaptive ray expansion mechanisms can include a memory (204) coupled to a processor (202). The processor can select (602) a target area within the mixed environment and modify (604) the propagation properties of the adaptive ray expansion mechanisms according to characteristics classified for the target area. The processor can further classify characteristics for the target area by transmitting and reflecting rays for indoor building regions and for outdoor building regions. The number of bounces or a power level threshold assigned to a transmitted ray is a function of the environment where it propagates. The simulation tool can determine the target area or a region of interest by using a global positioning service device (230) externally attached to a device performing functions of the simulation tool.

    Abstract translation: 具有增强的精度和速度的方法(600)和模拟工具(200)可以包括耦合到处理器(202)的存储器(204)的模拟,其利用自适应射线扩展机构在混合环境(20)中使用射线发射进行模拟。 处理器可以选择(602)混合环境内的目标区域,并根据针对目标区域分类的特征修改(604)自适应射线扩展机构的传播特性。 处理器可以通过传输和反射室内建筑区域和室外建筑区域的射线来进一步对目标区域的特征进行分类。 分配给发射光线的反弹次数或功率电平阈值是其传播的环境的函数。 仿真工具可以通过使用外部附接到执行仿真工具的功能的设备的全球定位服务设备(230)来确定目标区域或感兴趣区域。

    AN ENHANCED OFDM BY USE OF ALTERNATING POLARIZATION STATES
    25.
    发明申请
    AN ENHANCED OFDM BY USE OF ALTERNATING POLARIZATION STATES 审中-公开
    通过使用替代极化状态的增强OFDM

    公开(公告)号:WO2004062118B1

    公开(公告)日:2005-01-20

    申请号:PCT/US0340466

    申请日:2003-12-18

    Applicant: MOTOROLA INC

    CPC classification number: H04L27/2614 H01Q21/24 H04B7/10 H04L27/2602

    Abstract: An Orthogonal Frequency Division Multiplexer (OFDM) transmitter and receiver apparatus consistent with certain embodiments of the present invention receives data to be transmitted and maps (104) a first portion of the data to a first polarization state and a second portion of the data to a second polarization state. A first transmitter (148) transmits the first portion of the data as a set of first OFDM subcarriers using an antenna (160) exhibiting a first polarization. A second transmitter (156) transmits the second portion of the data as a set of second OFDM subcarriers using an antenna (164) exhibiting a second polarization, wherein the first polarization is orthogonal to the second polarization. A receiver apparatus uses a first antenna exhibiting the first polarization and a second antenna exhibiting the second polarization to receive and decode first and second set of OFDM subcarriers and combines them into a stream of data.

    Abstract translation: 与本发明的某些实施例一致的正交频分复用器(OFDM)发射机和接收机设备接收要发送的数据,并将数据的第一部分(104)映射(104)到第一极化状态和第二部分数据到 第二极化状态。 第一发射机(148)使用表现出第一极化的天线(160),将数据的第一部分作为第一OFDM子载波的集合发射。 第二发射机(156)使用表现出第二极化的天线(164)将数据的第二部分作为第二OFDM子载波的集合发送,其中第一极化与第二极化正交。 接收机装置使用呈现第一极化的第一天线和展现第二极化的第二天线来接收和解码第一和第二组OFDM子载波,并将它们组合成数据流。

    AN ENHANCED OFDM BY USE OF ALTERNATING POLARIZATION STATES
    27.
    发明申请
    AN ENHANCED OFDM BY USE OF ALTERNATING POLARIZATION STATES 审中-公开
    通过使用替代极化状态的增强OFDM

    公开(公告)号:WO2004062118A3

    公开(公告)日:2004-10-28

    申请号:PCT/US0340466

    申请日:2003-12-18

    Applicant: MOTOROLA INC

    CPC classification number: H04L27/2614 H01Q21/24 H04B7/10 H04L27/2602

    Abstract: An Orthogonal Frequency Division Multiplexer (OFDM) transmitter and receiver apparatus consistent with certain embodiments of the present invention receives data to be transmitted and maps (104) a first portion of the data to a first polarization state and a second portion of the data to a second polarization state. A first transmitter (148) transmits the first portion of the data as a set of first OFDM subcarriers using an antenna (160) exhibiting a first polarization. A second transmitter (156) transmits the second portion of the data as a set of second OFDM subcarriers using an antenna (164) exhibiting a second polarization, wherein the first polarization is orthogonal to the second polarization. A receiver apparatus uses a first antenna exhibiting the first polarization and a second antenna exhibiting the second polarization to receive and decode first and second set of OFDM subcarriers and combines them into a stream of data.

    Abstract translation: 与本发明的某些实施例一致的正交频分复用器(OFDM)发射机和接收机设备接收要发送的数据,并将数据的第一部分(104)映射(104)到第一极化状态和第二部分数据到 第二极化状态。 第一发射机(148)使用表现出第一极化的天线(160)将数据的第一部分作为一组第一OFDM子载波传输。 第二发射机(156)使用表现出第二极化的天线(164)将数据的第二部分作为第二OFDM子载波的集合发送,其中第一极化与第二极化正交。 接收机装置使用呈现第一极化的第一天线和展现第二极化的第二天线来接收和解码第一和第二组OFDM子载波,并将它们组合成数据流。

    ADAPTIVE DIVERSITY ANTENNA SYSTEM
    28.
    发明申请
    ADAPTIVE DIVERSITY ANTENNA SYSTEM 审中-公开
    自适应多样性天线系统

    公开(公告)号:WO2005065122A3

    公开(公告)日:2005-10-27

    申请号:PCT/US2004040808

    申请日:2004-12-07

    CPC classification number: H04B7/0871 H04B7/0874 H04B7/10

    Abstract: An antenna system (205) includes an antenna structure (215), a receiver (220), and an antenna system controller (225). The antenna structure includes an arrangement of antennas (237), a signal combiner (240), and a switching matrix (235). The arrangement of antennas is designed to have a set of antenna element separations that are optimized to provide lowest correlation coefficients of intercepted radio signals for a corresponding set of electromagnetic environment types that vary from a very low density scattering environment to a maximum density scattering environment. The antennas (230), (231), (232), (233), (234) in the antenna arrangement each include at least one element that has a common polarization. There is at least one antenna that is a dual polarized antenna. The antenna system selects an antenna element pair that corresponds to the environment type which it is operating and thereby receives a best combined signal.

    Abstract translation: 天线系统(205)包括天线结构(215),接收机(220)和天线系统控制器(225)。 天线结构包括天线布置(237),信号组合器(240)和开关矩阵(235)。 天线的布置被设计成具有一组天线元件分离,其被优化以提供从非常低密度散射环境到最大密度散射环境变化的对应的一组电磁环境类型的截取的无线电信号的最低相关系数。 天线装置中的天线(230),(231),(232),(233),(234)各自包括具有共同极化的至少一个元件。 至少有一个天线是双极化天线。 天线系统选择对应于其正在操作的环境类型的天线元件对,从而接收最佳组合信号。

    VIRTUAL DYNAMIC CELLULAR INFRASTRUCTURE BASED ON COORDINATE INFORMATION
    29.
    发明申请
    VIRTUAL DYNAMIC CELLULAR INFRASTRUCTURE BASED ON COORDINATE INFORMATION 审中-公开
    基于坐标信息的虚拟动态蜂窝基础设施

    公开(公告)号:WO2004010607B1

    公开(公告)日:2004-04-29

    申请号:PCT/US0321252

    申请日:2003-07-08

    Applicant: MOTOROLA INC

    Abstract: A wireless communication system having portable communication devices capable of establishing direct terminal-to-terminal communication through another terminal without having a fixed base station. A portable communication device used as a terminal is capable of functioning as a router for other communication devices while maintaining separated communications with another device. Upon registration (904, figure 9), the device searches the device begins the process of communication by discovering other devices (906).

    Abstract translation: 一种具有便携式通信设备的无线通信系统,该便携式通信设备能够通过另一个终端建立直接的终端至终端通信而无需固定的基站。 用作终端的便携式通信设备能够用作其他通信设备的路由器,同时保持与另一设备的分离通信。 在注册时(图9的904),设备搜索设备通过发现其他设备开始通信过程(906)。

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