Methods, apparatus and computer program products for beacon generation and processing in an OFDM communications system
    32.
    发明授权
    Methods, apparatus and computer program products for beacon generation and processing in an OFDM communications system 有权
    用于OFDM通信系统中的信标生成和处理的方法,装置和计算机程序产品

    公开(公告)号:US08248959B2

    公开(公告)日:2012-08-21

    申请号:US11754590

    申请日:2007-05-29

    IPC分类号: H04L12/26

    摘要: An enhanced-range beacon signal transmitted from a wireless terminal in a frequency band used by the wireless OFDM communications system for OFDM communications. The beacon may be received at each of a plurality of base stations of the wireless OFDM communications system. A location of the wireless terminal may be determined responsive to reception of the beacon signal at the plurality of base stations. In some embodiments, the beacon signal includes a narrowband beacon signal, which may be centered at a frequency offset with respect to a set of subcarriers used in the wireless OFDM communications system, for example, between adjacent subcarriers of the wireless OFDM system and/or in a guard band of the OFDM frequency band.

    摘要翻译: 在无线OFDM通信系统使用的用于OFDM通信的频带中从无线终端发送的增强范围信标信号。 可以在无线OFDM通信系统的多个基站中的每一个处接收信标。 可以响应于在多个基站处的信标信号的接收来确定无线终端的位置。 在一些实施例中,信标信号包括窄带信标信号,其可以相对于在无线OFDM通信系统中使用的一组子载波(例如在无线OFDM系统的相邻子载波之间)和/或 在OFDM频带的保护频带中。

    METHOD AND SYSTEM ENABLING USE OF WHITE SPACE RADIO SPECTRUM USING DIGITAL BROADCAST SIGNALS
    33.
    发明申请
    METHOD AND SYSTEM ENABLING USE OF WHITE SPACE RADIO SPECTRUM USING DIGITAL BROADCAST SIGNALS 有权
    使用数字广播信号的白天空间频谱的方法和系统

    公开(公告)号:US20120202510A1

    公开(公告)日:2012-08-09

    申请号:US13438429

    申请日:2012-04-03

    申请人: Rajendra Singh

    发明人: Rajendra Singh

    IPC分类号: H04W72/04

    摘要: A system (10) and method (50 or 70) of dynamic allocation of spectrum for a communication device where a UHF band is currently unused for licensed television broadcasting involves determining (51) a location of a user device, determining (52) which UHF television broadcast channels are available for use by the user device and determining (53) a maximum allowed transmission power for a given channel based on signal strength for the given channel and on adjacent channels before transmitting (54) the maximum allowed transmission power and location by the user device to a remote server. The method can receive (55) polygon endpoints from a television broadcast defining the location of usable reception of the television broadcast.

    摘要翻译: 用于通信设备的频谱的动态分配的系统(10)和方法(50或70),其中UHF频带当前未被许可的电视广播包括确定(51)用户设备的位置,确定(52)哪个UHF 电视广播频道可由用户设备使用,并基于给定频道的信号强度和相邻信道确定(53)给定频道的最大允许传输功率,在发送(54)最大允许传输功率和位置之前 用户设备到远程服务器。 该方法可以从定义电视广播的可用接收位置的电视广播接收(55)多边形端点。

    WIRELESS COMMUNICATIONS APPARATUS AND METHODS EMPLOYING OPPORTUNISTIC FREQUENCY BAND USE
    34.
    发明申请
    WIRELESS COMMUNICATIONS APPARATUS AND METHODS EMPLOYING OPPORTUNISTIC FREQUENCY BAND USE 审中-公开
    无线通信装置和使用机会频带使用的方法

    公开(公告)号:US20120034944A1

    公开(公告)日:2012-02-09

    申请号:US13273672

    申请日:2011-10-14

    IPC分类号: H04W72/04

    CPC分类号: H04W72/085 H04B7/12 H04W52/42

    摘要: A base station selectively communicates with terminals using first and second separately allocated frequency bands, e.g., separate cellular/PCS bands, of a government spectrum allocation based on propagation conditions between the base station and the terminals. The base station may transmit in the first frequency band and receive in the second frequency band during a first time slot and transmit in the second frequency band and receive in the first frequency band during a second time slot. The base station may transmit to a terminal in the first frequency band while receiving from the terminal in the second frequency band during the first time slot and may transmit to the first terminal in the second frequency band while receiving from the first terminal in the first frequency band during the second time slot.

    摘要翻译: 基站基于基站和终端之间的传播条件,选择性地使用第一和第二分开分配的频带(例如单独的蜂窝/ PCS频带)与政府频谱分配进行通信。 基站可以在第一频带中进行发送,并且在第一时隙期间在第二频带中接收并在第二频带中进行发射,并且在第二时隙期间在第一频带中接收。 基站可以在第一时隙期间从第二频带中的终端接收到第一频带中的终端,并且可以在第一频率从第一终端接收时向第二频带中的第一终端发送 在第二时隙期间。

    Wireless communications apparatus and methods employing opportunistic frequency band use
    35.
    发明授权
    Wireless communications apparatus and methods employing opportunistic frequency band use 有权
    采用机会频带使用的无线通信装置和方法

    公开(公告)号:US08040844B2

    公开(公告)日:2011-10-18

    申请号:US11938978

    申请日:2007-11-13

    IPC分类号: H04W4/00

    CPC分类号: H04W72/085 H04B7/12 H04W52/42

    摘要: A base station selectively communicates with terminals using first and second separately allocated frequency bands, e.g., separate cellular/PCS bands, of a government spectrum allocation based on propagation conditions between the base station and the terminals. The base station may transmit in the first frequency band and receive in the second frequency band during a first time slot and transmit in the second frequency band and receive in the first frequency band during a second time slot. The base station may transmit to a terminal in the first frequency band while receiving from the terminal in the second frequency band during the first time slot and may transmit to the first terminal in the second frequency band while receiving from the first terminal in the first frequency band during the second time slot.

    摘要翻译: 基站基于基站和终端之间的传播条件,选择性地使用第一和第二分开分配的频带(例如单独的蜂窝/ PCS频带)与政府频谱分配进行通信。 基站可以在第一频带中进行发送,并且在第一时隙期间在第二频带中接收并在第二频带中进行发射,并且在第二时隙期间在第一频带中接收。 基站可以在第一时隙期间从第二频带中的终端接收到第一频带中的终端,并且可以在第一频率从第一终端接收时向第二频带中的第一终端发送 在第二时隙期间。

    Multi-band satellite and/or ancillary terrestrial component radioterminal communications systems and methods with combining operation
    36.
    发明授权
    Multi-band satellite and/or ancillary terrestrial component radioterminal communications systems and methods with combining operation 有权
    多频带卫星和/或辅助地面组件无线电终端通信系统和方法结合操作

    公开(公告)号:US07933552B2

    公开(公告)日:2011-04-26

    申请号:US11061346

    申请日:2005-02-18

    IPC分类号: H04B7/185

    CPC分类号: H04B7/18563

    摘要: A satellite radioterminal communications system may include first and second space-based components and a return link diversity combiner. The first space-based component may be configured to communicate uni-directionally and/or bidirectionally with a first radioterminal over a first forward link using a first band of frequencies and/or over a first return link using a second band of frequencies. The second space-based component may be configured to communicate uni-directionally and/or bidirectionally with a second radioterminal over a second forward link using a third band of frequencies and/or over a second return link using a fourth band of frequencies. The second space-based component may also be configured to receive return link communications from the first radioterminal over the first return link using the second band of frequencies, and the first and third bands of frequencies may be different bands of frequencies.

    摘要翻译: 卫星无线电终端通信系统可以包括第一和第二基于空间的组件和返回链路分集组合器。 第一基于空间的组件可以被配置为使用第一频带和/或通过使用第二频带的第一返回链路在第一前向链路上与第一无线电终端单向和/或双向通信。 第二基于空间的组件可以被配置为使用第三频带和/或通过使用第四频带的第二返回链路与第二无线电终端单向和/或双向地通过第二前向链路进行通信。 第二基于空间的组件还可以被配置为使用第二频带从第一返回链路接收来自第一无线电终端的返回链路通信,并且第一和第三频带可以是不同的频带。

    METHOD AND SYSTEM FOR MITIGATING CO-CHANNEL INTERFERENCE
    39.
    发明申请
    METHOD AND SYSTEM FOR MITIGATING CO-CHANNEL INTERFERENCE 有权
    减少协同干扰的方法和系统

    公开(公告)号:US20090286488A1

    公开(公告)日:2009-11-19

    申请号:US12508942

    申请日:2009-07-24

    IPC分类号: H04B1/38

    摘要: A method of communicating data between a first transceiver and any of a plurality of second transceivers, wherein areas serviced by each of the plurality of second transceivers either overlap or are adjacent. The method comprises operating the first transceiver and the plurality of second transceivers in an overlapping frequency range. Each of the plurality of second transceivers operates in a time period different from a time period of another of the plurality of second transceivers.

    摘要翻译: 一种在第一收发机与多个第二收发器中的任何一个之间传送数据的方法,其中由所述多个第二收发器中的每一个所服务的区域重叠或相邻。 该方法包括在重叠频率范围内操作第一收发器和多个第二收发器。 多个第二收发器中的每一个在与多个第二收发器中的另一个的时间段不同的时间段内操作。

    Method and system for mitigating co-channel interference
    40.
    发明授权
    Method and system for mitigating co-channel interference 有权
    减少同频干扰的方法和系统

    公开(公告)号:US07583935B2

    公开(公告)日:2009-09-01

    申请号:US11262975

    申请日:2005-11-01

    IPC分类号: H04B1/38

    摘要: A method of communicating data between a first transceiver and any of a plurality of second transceivers, wherein areas serviced by each of the plurality of second transceivers either overlap or are adjacent. The method comprises operating the first transceiver and the plurality of second transceivers in an overlapping frequency range. Each of the plurality of second transceivers operates in a time period different from a time period of another of the plurality of second transceivers.

    摘要翻译: 一种在第一收发机与多个第二收发器中的任何一个之间传送数据的方法,其中由所述多个第二收发器中的每一个所服务的区域重叠或相邻。 该方法包括在重叠频率范围内操作第一收发器和多个第二收发器。 多个第二收发器中的每一个在与多个第二收发器中的另一个的时间段不同的时间段内操作。