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    • 93. 发明授权
    • Packet communication system, emission control apparatus, antenna control method and computer program
    • 分组通信系统,排放控制装置,天线控制方法和计算机程序
    • US08937986B2
    • 2015-01-20
    • US13821722
    • 2011-09-07
    • Hiroshi FurukawaOsamu Muta
    • Hiroshi FurukawaOsamu Muta
    • H04B7/17H04B7/155H01Q3/24H01Q9/16H01Q21/24H04B7/10H04B7/06H04B7/08
    • H04B7/15528H01Q3/24H01Q9/16H01Q21/24H04B7/0602H04B7/0802H04B7/10
    • A packet communication system etc., is proposed, which can automatically adjusting the antenna directionality without modifying a wireless interface of a wireless packet forwarding device even if it involves fluctuation in the packet transmission timing due to CSMA/CA etc. An interference evasion unit involves fluctuation in packet transmission timing due to CSMA/CA. A radio emission device can control the emissive direction and/or emission intensity. A packet generation unit adjusts packet features other than its contents (e.g., packet length, transmission intensity) based on a switching sequence for specifying the emissive direction and/or emissive intensity, and generate a switching control packet. An emission control unit measures the switching control packet feature other than its contents, and identifies at least one bit as antenna control information. The emission control unit controls the overall directionality of a directional antenna unit based on a bit sequence including at least one bit thus identified.
    • 提出了一种分组通信系统等,即使涉及由于CSMA / CA等导致的分组发送定时的波动,也能够自动调整天线方向性而不修改无线分组转发装置的无线接口。干扰逃避单元涉及 由于CSMA / CA引起的分组传输时序的波动。 无线电发射装置可以控制发射方向和/或发射强度。 分组产生单元基于用于指定发射方向和/或发射强度的切换序列来调整除其内容之外的分组特征(例如,分组长度,传输强度),并且生成切换控制分组。 排放控制单元测量除了其内容之外的切换控制分组特征,并且将至少一个比特识别为天线控制信息。 排放控制单元基于包括至少一个如此识别的位的比特序列来控制定向天线单元的整体方向性。
    • 95. 发明授权
    • Software configurable distributed antenna system and method for reducing uplink noise
    • 软件可配置的分布式天线系统和减少上行链路噪声的方法
    • US08817848B2
    • 2014-08-26
    • US13602818
    • 2012-09-04
    • Paul LemsonShawn Patrick StapletonSasa Trajkovic
    • Paul LemsonShawn Patrick StapletonSasa Trajkovic
    • H04B3/36H04B7/17H04B17/02H04L25/20H04L25/52
    • H04B7/04H04B7/022H04B10/25753H04W88/085
    • A distributed antenna system includes a master unit including a downlink RF input operable to receive an RF input signal from a downlink port of a base station, a first optical port, and a second optical port. The distributed antenna system also includes a first remote unit coupled to the first optical port. The first remote unit comprises a downlink antenna port and a first uplink antenna port and a second remote unit coupled to the second optical port of the master unit. The second remote unit comprises a downlink antenna port and a second uplink antenna port. The master unit is operable to transmit a first RF signal associated with the first RF uplink signal to a first uplink port of the base station and transmit a second RF signal associated with the second RF uplink signal to a second uplink port of the base station.
    • 分布式天线系统包括主单元,其包括可操作以从基站的下行链路端口,第一光端口和第二光端口接收RF输入信号的下行链路RF输入。 分布式天线系统还包括耦合到第一光端口的第一远程单元。 第一远程单元包括下行链路天线端口和第一上行链路天线端口以及耦合到主单元的第二光端口的第二远程单元。 第二远程单元包括下行链路天线端口和第二上行链路天线端口。 主单元可操作地将与第一RF上行链路信号相关联的第一RF信号发送到基站的第一上行链路端口,并将与第二RF上行链路信号相关联的第二RF信号发送到基站的第二上行链路端口。
    • 98. 发明申请
    • MOBILE ASSET TRACKING UNIT, SYSTEM AND METHOD
    • 移动资产跟踪单元,系统和方法
    • US20110102147A1
    • 2011-05-05
    • US12953502
    • 2010-11-24
    • Daniel FureyLouis F. Wise
    • Daniel FureyLouis F. Wise
    • H04B7/17G08B5/22
    • G08B1/08G08B21/0269
    • An asset tracking unit, system, and method. The asset tracking unit, system, and method may include at least one transceiver having communicative connections with at least one SATCOM network and at least one GPS network via at least one antenna, wherein tracking information for at least one asset associated with the at least one transceiver is received from the GPS network and is communicated to the SATCOM network, a first link that provides a multi-code one of the communicative connections between the at least one transceiver and the at least one SATCOM network, and a second link that provides a multi-channel one of the communicative connections between the at least one transceiver and he at least one GPS network. The unit system and method may additionally include at least one remote operations center remote from an asset to be tracked, wherein the asset to be tracked is geographically associated with the central processing unit.
    • 资产跟踪单元,系统和方法。 资产跟踪单元,系统和方法可以包括经由至少一个天线与至少一个SATCOM网络和至少一个GPS网络的通信连接的至少一个收发器,其中跟踪至少一个与至少一个 收发器从GPS网络接收并且被传送到SATCOM网络,第一链路提供至少一个收发器与至少一个SATCOM网络之间的通信连接中的多码之一,以及第二链路,其提供 多通道至少一个收发器与他至少一个GPS网络之间的通信连接之一。 单元系统和方法可以另外包括远离要跟踪的资产的至少一个远程操作中心,其中要跟踪的资产在地理上与中央处理单元相关联。