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    • 21. 发明申请
    • Software Management for Software Defined Radio in a Distributed Network
    • 分布式网络中软件定义无线电的软件管理
    • US20090013317A1
    • 2009-01-08
    • US11772487
    • 2007-07-02
    • Scott A. AbfalterTerry L. WilliamsThomas L. JordanJohn J. Uberbacher
    • Scott A. AbfalterTerry L. WilliamsThomas L. JordanJohn J. Uberbacher
    • G06F9/44
    • G06F8/61G06F8/65H04L41/0843H04L41/0856H04L41/0859H04L41/0863H04W24/02
    • A method for installing software to software-defined radio equipment. The method includes the step of transferring software to one or more software-defined radio devices from a remotely located software server. The software server can be a computer operatively connected to the software-defined radio device via a communications network. The transferring step can occur while the software-defined radio device continues to perform software-defined radio functions. The software can be stored to a portion of a data store associated with the software-defined radio device which is not being used as a storage for currently running software. The software can be loaded on a restart of the software defined device. An error indication can be provided if a fault occurs in the transferring step or the loading step. The method also can include the step of reverting from the selected software to a previous software version upon a fault occurrence.
    • 一种将软件安装到软件定义无线电设备的方法。 该方法包括将软件从远程位置的软件服务器传送到一个或多个软件定义的无线电设备的步骤。 软件服务器可以是通过通信网络可操作地连接到软件定义的无线电设备的计算机。 当软件定义的无线电设备继续执行软件定义的无线电功能时,可以发生传送步骤。 软件可以存储到与软件定义的无线电设备相关联的数据存储器的一部分,该无线电设备未被用作当前运行的软件的存储器。 该软件可以重新启动软件定义的设备。 如果在传送步骤或加载步骤中发生故障,则可以提供错误指示。 该方法还可以包括在故障发生时从所选择的软件恢复到先前的软件版本的步骤。
    • 22. 发明申请
    • Co-channel handover in a cellular network
    • 蜂窝网络中的同频切换
    • US20070161374A1
    • 2007-07-12
    • US11329607
    • 2006-01-11
    • Kip KienstraTerry Williams
    • Kip KienstraTerry Williams
    • H04Q7/20
    • H04W36/18H04W36/08
    • Method for transferring service for a mobile station call signal from a first base transceiver station to a second base transceiver station in a wireless mobile telecommunication system. The first base transceiver station can automatically terminate RF transmissions from the first base transceiver station to the mobile station on a pre-handover RF channel. Thereafter, telecommunication service for the mobile station can be automatically continued using the second base transceiver station. Advantageously, the second base transceiver station can provide the telecommunication service for the mobile station on a post-handover radio frequency channel that is the same as the pre-handover radio frequency channel.
    • 一种用于将移动台呼叫信号的服务从无线移动电信系统中的第一基站收发台转移到第二基站收发信机的方法。 第一基站收发台可以在切换前的RF信道上自动终止从第一基站收发台到移动台的RF传输。 此后,可以使用第二基站收发台自动继续移动台的电信业务。 有利地,第二基站收发台可以在与切换前无线电频率信道相同的切换后射频信道上为移动台提供电信业务。
    • 25. 发明申请
    • Supporting wireless communication interoperability compatibility with existing communications infrastructure
    • 支持与现有通信基础设施的无线通信互操作兼容性
    • US20060092865A1
    • 2006-05-04
    • US10980044
    • 2004-11-03
    • Terry Williams
    • Terry Williams
    • H04B7/00
    • H04W48/18H04W4/18H04W80/00H04W88/08H04W88/10
    • The invention can include a base station for use with a land mobile radio network. The base station can include a controller (225) selecting an initial communication protocol and at least one target communication protocol that is different from the initial communication protocol. The base station also can include one or more transceivers (205, 210, 215) configured to send and receive a communication within a particular frequency band. The transceiver(s) can receive a communication formatted according to the initial communication protocol. A waveform processor (220) can be programmatically configurable to translate the communication to the target communication protocol(s) and format the communication as a communication originating from a mobile radio. The translated communication can be transmitted through the transceiver(s) to a node of a target communication network.
    • 本发明可以包括用于陆地移动无线电网络的基站。 基站可以包括选择初始通信协议的控制器(225)和不同于初始通信协议的至少一个目标通信协议。 基站还可以包括被配置为在特定频带内发送和接收通信的一个或多个收发器(205,210,215)。 收发机可以接收根据初始通信协议格式化的通信。 波形处理器(220)可以被编程地配置为将通信转换为目标通信协议,并且将通信格式化为来自移动无线电的通信。 翻译的通信可以通过收发器传输到目标通信网络的节点。
    • 27. 发明授权
    • Wireless system plan using in band-translators with diversity backhaul
to enable efficient depolyment of high capacity base transceiver systems
    • 无线系统计划使用具有分集回程的带宽翻译器,以实现高容量基站收发器系统的高效解散
    • US6088592A
    • 2000-07-11
    • US622550
    • 1996-03-25
    • John R. DonerRonald R. CarneyMichael A. Komara
    • John R. DonerRonald R. CarneyMichael A. Komara
    • H04W16/02H04W16/12H04W16/24H04W16/26H04Q7/36
    • H04W16/26H04B7/2606H04W16/12
    • A wireless system architecture whereby high efficiency broadband transceiver systems can be deployed at an initial build out stage of the system in a cost-efficient manner. A home base station location is identified within each cluster of cells and rather than deploy a complete suite of base station equipment at each of the cells in the cluster, inexpensive translator units are located in the outlying cells serviced by the home base station in which low traffic density is expected. The translators are connected to directional antennas arranged to point back to the home base station site. The translators are deployed in such a way which meshes with the eventually intended frequency reuse for the entire cluster of cells. The translator to base station radio links operate in-band that is, within the frequencies assigned to the service provider. The available frequency bands are divided into at least two sub-bands, with frequency translations ocurring entirely within a given sub-band.
    • 一种无线系统架构,其中可以以成本有效的方式在系统的初始建立阶段部署高效率宽带收发器系统。 在每个小区集群内识别家庭基站位置,而不是在集群中的每个小区部署一套完整的基站设备,廉价的转换器单元位于由家庭基站服务的外围小区中,其中低 预计交通密集。 翻译器连接到布置成指向家庭基站站点的定向天线。 翻译器的部署方式与整个单元格集群的最终预期频率重用相结合。 转换器到基站无线电链路在分配给服务提供商的频率内在带内工作。 可用的频带被划分成至少两个子带,其频率转换完全在给定子带内。
    • 28. 发明授权
    • Method and apparatus employing delay elements in multiple diversity
paths of a wireless system repeater translator to allow for selective
diversity and automatic level control in a time-division multiple
access system
    • 在无线系统中继器转换器的多个分集路径中采用延迟元件的方法和装置,以允许时分多址系统中的选择性分集和自动电平控制
    • US06088570A
    • 2000-07-11
    • US198485
    • 1998-11-24
    • Michael A. KomaraThomas R. SchmutzJeffrey W. SmithStephen J. Foley
    • Michael A. KomaraThomas R. SchmutzJeffrey W. SmithStephen J. Foley
    • H04B7/005H04B7/08H04B7/15
    • H04B7/2606H04B7/0802H04B7/15542H04W52/42H04B7/0828
    • In a conventional Time Division Multiple Access (TDMA) wireless system, the specified distance between a mobile unit and the base transceiver system (BTS) cannot exceed predetermined distances because of time slot synchronization constraints. Furthermore, varying distances between mobile units and the BTS, as well as Rayleigh fading, caused by destructive interference effects between direct and reflected signals, create extreme signal strength variations in the initial uplink signal from the mobile stations. The use of spatially-diverse antennas for receiving uplink signals provides diversity gain and mitigates deep fades. Furthermore, selecting the stronger of the spatially-diverse uplink signals mitigates deep fades and reduces frequency usage in the backhaul frequency band. In this approach to extending TDMA system coverage, in-band translator components are located in the center of remote cells which would normally contain a base transceiver system (BTS). The in-band translators include delay elements to implement slot-by-slot selective spatial diversity and automatic level control in a predictive feedforward fashion. The selective diversity mitigates deep Rayleigh fades, while the dynamic automatic level control drastically reduces the uplink backhaul dynamic range to allow for greater backhaul distances. Predictive feedforward automatic level control also eliminates overload and saturation of the backhaul high power amplifier, normally caused by wide variations in uplink power levels.
    • 在传统的时分多址(TDMA)无线系统中,由于时隙同步约束,移动单元与基站收发器系统(BTS)之间的指定距离不能超过预定距离。 此外,移动单元与BTS之间的距离变化以及由直接和反射信号之间的相互干扰影响引起的瑞利衰落造成来自移动台的初始上行链路信号的极端信号强度变化。 使用空间多样的天线来接收上行链路信号提供分集增益并减轻深度衰落。 此外,选择较强的空间多样化的上行链路信号可以减轻深度衰落,并减少回程频带中的频率使用。 在这种扩展TDMA系统覆盖的方法中,带内转换器组件位于通常包含基站收发器系统(BTS)的远程小区的中心。 带内转换器包括以预定的前馈方式实现逐时隙选择性空间分集和自动电平控制的延迟元件。 选择性分集减轻了瑞利衰落深度,而动态自动电平控制大大降低了上行链路回程动态范围,从而允许更大的回程距离。 预测前馈自动电平控制还消除了回程高功率放大器的过载和饱和,通常由上行链路功率电平的宽泛变化引起。
    • 29. 发明授权
    • Frequency plan for wireless communication system that accommodates
demand growth to high efficiency reuse factors
    • 无线通信系统的频率计划,可以满足需求增长到高效率的再利用因素
    • US5974323A
    • 1999-10-26
    • US749600
    • 1996-09-13
    • John R. Doner
    • John R. Doner
    • H04W16/02H04W16/12H04W16/24H04Q7/36
    • H04W16/12H04W16/02H04W16/24
    • A frequency allocation plan for a wireless communication system that accommodates growth in demand from a low density reuse pattern of twelve cells to a high efficiency reuse pattern of three cells. The available radio spectrum is first divided into three ranges and each range is further divided into four groups. The frequencies in each range are sequentially assigned to the four groups, and the groups are further identified as even and/or odd index groups. The twelve cell groups are laid out in rectangular shapes of four cells across by three cells high, with a first set of three cells in the upper left portion being assigned to use a first even index frequency group. A second group of three cells in a lower left portion are assigned to use a second even index frequency group. A third and fourth group of three cells associated with upper right and lower right positions are assigned the first and second odd index frequency group. As traffic density increases the cells are split into six sectors with each sector being assigned the other odd or even frequency group to achieve a reuse factor of six. Sectorizing to a cell reuse pattern of three is then implemented by swapping the resulting frequency assignments made to a leftmost column of three cells with a non-adjacent center column of a cell group to the left. In order to implement times three reuse in the rightmost column of cells, odd and even frequency assignments are similarly swapped between the leftmost column and the non-adjacent center column of the cell group to the right.
    • 一种无线通信系统的频率分配方案,其适应从12个小区的低密度重用模式到3个小区的高效率重用模式的需求增长。 可用的无线电频谱首先分为三个范围,每个范围进一步分为四组。 每个范围中的频率被顺序分配给四组,并且这些组进一步被识别为偶数和/或奇数索引组。 十二个单元组以四个单元的矩形形状横跨三个单元格布置,其中左上部分中的第一组三个单元被分配为使用第一偶数索引频率组。 分配左下部分中的第三组三个单元以使用第二偶数索引频率组。 与第二和第二奇数索引频率组分配与右上和右下位置相关联的三个单元的第三组和第四组。 随着业务密度的增加,单元被分为六个扇区,每个扇区被分配另一个奇数或偶数频率组,以实现重用系数6。 然后通过将对三个单元的最左列的所得到的频率分配与左侧的单元组的非相邻中心列进行交换来实现对三个单元重用模式的分级。 为了在单元格的最右边的列中实现三次重用,奇数和偶数频率分配在右侧的单元组的最左列和非相邻中心列之间类似地交换。
    • 30. 发明授权
    • FFT-based channelizer and combiner employing residue-adder-implemented
phase advance
    • 基于FFT的信道化器和采用残余加法器实现的相位提前的组合器
    • US5606575A
    • 1997-02-25
    • US595106
    • 1996-02-01
    • Terry L. Williams
    • Terry L. Williams
    • H03H17/02H04B1/26H04B1/38H04B1/40H04B7/00H04B7/26H04J1/00H04J1/05H04J11/00H04L5/06H04L27/00H04L27/26H04W88/08H04L5/16
    • H04J1/05H04B1/38H04L27/0004H04L27/2628H04L27/264H04L27/2652H04L5/06H04W88/08
    • In a cellular-telephone-system base-station receiver's channelizer (111), frequency translation of the outputs of a filter bank (FIG. 5) implemented in fast-Fourier-transform circuitry (453,455,460) is achieved by rotating the correspondence between FFT input elements and the filter coefficients by which multipliers (437) multiply incoming samples to produce them. Specifically, a storage-address generator (482) directs that corresponding FFT input elements of successive FFT operations be stored in the same locations in an input-data memory (451). To retrieve those values for use in the DFT operation, however, a fetch-address generator (484) employs a modulo-K adder (488) to impose a changing offset so that the starting address for retrieval of each FFT operation's input record changes between FFT operations by the filter bank's decimation rate M. An FFT-implemented combiner (131) similarly rotates computation values to phase align successive wavelets that it adds together to generate modulated carriers in a multi-channel output signal.
    • 在蜂窝电话系统基站接收机的信道化器(111)中,通过旋转FFT输入之间的对应关系来实现在快速傅里叶变换电路(453,455,460)中实现的滤波器组(图5)的输出的频率转换 元素和乘法器(437)乘以输入采样以产生它们的滤波器系数。 具体地说,存储地址发生器(482)指示连续FFT操作的相应FFT输入元件被存储在输入数据存储器(451)中的相同位置。 然而,为了检索用于DFT操作的这些值,取指地址生成器(484)使用模K加法器(488)来施加改变的偏移量,使得每个FFT操作的输入记录的检索的起始地址在 FFT操作通过滤波器组的抽取速率M.FFT实现的组合器(131)类似地将计算值旋转到将其相加在一起的相位对齐,以便在多通道输出信号中产生调制载波。