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    • 2. 发明授权
    • Mobile telephone location process making use of handoff data
    • 使用切换数据的移动电话定位过程
    • US5657487A
    • 1997-08-12
    • US462016
    • 1995-06-05
    • John R. Doner
    • John R. Doner
    • G01S5/00G01S5/02G01S5/12G01S19/09G01S19/46H04W64/00H04Q7/36
    • G01S5/12G01S5/0036G01S5/0252H04W24/10H04W36/30H04W56/0045H04W64/00
    • A system for determining the location of a mobile station based upon measurable mobile data values such as those provided by mobile-assisted handoff (MAHO) procedures. The mobile stations make signal strength measurements of nearby base stations and return that information to the serving base station. A timing advance necessary to synchronize the mobile may also be determined. The signal strength measurements and the timing advance data then provide information to map to an estimated vehicle location. Since the mobiles are assumed to measure signal strength discretely, there may be several consecutive positions along a road which return identical mobile data. The road is thus segmented into constant segements which are consecutively indexed, and an association is established between the associated mobile data vector and the index. The process for location of a mobile consists of first finding the road for the mobile unit, then finding the position along the road. The mobile vector is sequentially input into a look up table or neural networks (one for each road in the sector) until an output coordinate pair actually lies near the corresponding road. From that point on, the input vector provides an index to a constant region along the road, so the mobile is unambiguously located as to which road, and to which segment along the road it occupies.
    • 一种用于基于可测量的移动数据值(例如由移动辅助切换(MAHO)过程提供的那些)来确定移动台的位置的系统。 移动台进行附近基站的信号强度测量并将该信息返回给服务基站。 也可以确定同步移动站所需的定时提前。 信号强度测量和定时提前数据然后提供信息以映射到估计的车辆位置。 由于假设移动台离散地测量信号强度,所以沿道路可能有几个连续的位置返回相同的移动数据。 因此,道路被分段成连续索引的恒定分段,并且在相关联的移动数据矢量和索引之间建立关联。 移动的位置的过程包括首先找到移动单元的道路,然后找到沿着道路的位置。 将移动矢量依次输入到查询表或神经网络(一个用于扇区中的每个道路),直到输出坐标对实际位于相应道路附近。 从那时起,输入向量向沿着道路的恒定区域提供了一个索引,因此移动站明确地定位到哪个道路,以及沿着它所占据的道路的哪个段。
    • 3. 发明授权
    • Transceiver apparatus employing wideband FFT channelizer and inverse FFT
combiner for multichannel communication network
    • 收发器采用宽带FFT信道化器和反向FFT组合器进行多通道通信网络
    • US5535240A
    • 1996-07-09
    • US146364
    • 1993-10-29
    • Ronald R. CarneyTerry L. Williams
    • Ronald R. CarneyTerry L. Williams
    • H03H17/02H04B1/26H04B1/38H04B1/40H04B7/00H04B7/26H04J1/00H04J1/05H04J11/00H04L5/06H04L27/00H04L27/26H04W88/08H04L5/16
    • H04L5/06H04B1/38H04J1/05H04L27/0004H04L27/2631H04L27/2652H04W88/08
    • A physically compact, multichannel wireless communication transceiver architecture employs overlap and add or polyphase signal processing functionality, previously applied to narrowband speech analysis research, for wideband signal processing. A receiver section receives a plurality of multiple frequency communication channels and outputs digital signals representative of the contents of the plurality of multiple frequency communication channels. The receiver section contains an FFT-based channelizer that processes the digital signals output by a wideband digital receiver and couples respective channel outputs to a first plurality of digital signal processor units, which process (e.g. demodulate) respective ones of the digital channel signals and supply processed ones of the digital channel signals at respective output ports for distribution to an attendant voice/data network. On the transmit side, a transmit section contains a plurality of digital signal processors, respectively associated with respective ones of a plurality of incoming (voice/data) communication signals to be transmitted over respectively different frequency channels. Their processed (modulated, encoded) outputs are supplied to an inverse FFT combiner. The FFT combiner supplies a combined multichannel signal to a wideband transmitter which transmits a multiple frequency communication channel signal. Each of the channelizer and combiner may be implemented using overlap and add or polyphase filtering.
    • 物理紧凑的多通道无线通信收发器架构采用先前应用于窄带语音分析研究的重叠和相加信号处理功能,用于宽带信号处理。 接收部分接收多个多频通信信道,并输出表示多个多频通信信道的内容的数字信号。 接收器部分包含基于FFT的信道化器,其处理由宽带数字接收机输出的数字信号,并将相应的信道输出耦合到第一多个数字信号处理器单元,其处理(例如解调)数字信道信号中的相应数字信号并提供 在各个输出端口处理数字信道信号,以便分发到话音/数据网络。 在发送侧,发送部分包含多个数字信号处理器,分别与要分别在不同频率信道上发送的多个输入(语音/数据)通信信号中的相应的数字信号处理器相关联。 它们的处理(调制编码)输出被提供给反FFT组合器。 FFT组合器将组合的多信道信号提供给发送多频通信信道信号的宽带发射机。 可以使用重叠和添加或多相过滤来实现每个信道化器和组合器。
    • 4. 发明申请
    • Method to calibrate RF paths of an FHOP adaptive base station
    • 校准FHOP自适应基站的RF路径的方法
    • US20070183479A1
    • 2007-08-09
    • US11333193
    • 2006-01-17
    • John NollJeffrey SmithShannon TomarchioBrady Gaughan
    • John NollJeffrey SmithShannon TomarchioBrady Gaughan
    • H04B1/00
    • H04B7/0848H04B17/21
    • A method for calibration of RF paths of a frequency hopping adaptive base transceiver station is provided. The method of calibration calibrates a wireless cellular telecommunication system with a frequency hopping adaptive base transceiver station including an adaptive antenna array with two or more RF traffic transceiver apparatus chains. The wireless cellular telecommunication system communicates with mobile units on a frequencies defined by a hop list. The method of calibration includes the step of periodically interrupting a frequency hopping process of the frequency hopping adaptive base transceiver station while calls are in progress. The method of calibration further includes the step of calibrating an antenna transmit path for a RF traffic transceiver apparatus chain at a frequency selected to include one or more frequencies in the hop list to determine a set of weighting parameters for the antenna transmit path at the one or more frequencies. A self-calibrating frequency hopping adaptive base transceiver station is also provided.
    • 提供了一种用于校准跳频自适应基站的射频路径的方法。 校准方法使用包括具有两个或更多个RF业务收发器设备链的自适应天线阵列的跳频自适应基站收发器校准无线蜂窝电信系统。 无线蜂窝电信系统在跳频列表定义的频率上与移动单元进行通信。 校准方法包括在呼叫进行期间周期性地中断跳频自适应基站收发机的跳频过程的步骤。 校准方法还包括校准用于RF业务收发器设备链的天线发射路径的步骤,该频率被选择为包括跳频列表中的一个或多个频率,以确定一个天线发射路径的一组加权参数 或更多的频率。 还提供了自校准跳频自适应基站收发台。
    • 5. 发明申请
    • Distributed base station controller
    • 分布式基站控制器
    • US20070178901A1
    • 2007-08-02
    • US11344890
    • 2006-02-01
    • Terry Williams
    • Terry Williams
    • H04Q7/20
    • H04W72/0426H04W36/08
    • A wireless cellular telecommunication system with an internet protocol network is provided. The wireless cellular telecommunication system comprises one or more base transceiver stations. The base transceiver stations can selectively provide a radio resource management processing. The radio resource management processing can provide a means for performing an inter-base transceiver station handover. A base transceiver station can communicate with another base transceiver station for the radio resource management processing without assistance from a centralized controller to perform control processing for the base transceiver stations. The base transceiver stations can further selectively provide a radio resource management processing, such as allocating a radio channel, deallocating a radio channel, changing a radio channel, or activating ciphering, without the assistance from a centralized controller to perform control processing for the base transceiver stations.
    • 提供了具有因特网协议网络的无线蜂窝电信系统。 无线蜂窝电信系统包括一个或多个基站收发台。 基站收发台可以选择性地提供无线电资源管理处理。 无线电资源管理处理可以提供用于执行基站间无线电台切换的装置。 基站收发台可以与另一基站收发信机进行通信,用于无线电资源管理处理,无需集中式控制器的协助,从而对基站收发信机进行控制处理。 基站收发台可以进一步选择性地提供诸如分配无线电信道,释放无线电信道,改变无线电信道或激活加密的无线电资源管理处理,而无需集中式控制器的协助来执行基站收发信机的控制处理 车站。
    • 7. 发明授权
    • Method for dynamic allocation of wireless base station DSP resources
    • 无线基站DSP资源的动态分配方法
    • US06970709B1
    • 2005-11-29
    • US09418628
    • 1999-10-15
    • Terry L. Williams
    • Terry L. Williams
    • H04W28/26H04W84/04H04W88/08H04Q7/20
    • H04W88/08H04W28/26H04W68/00H04W76/10H04W84/042
    • A method for dynamically allocating signal processing resources in a wireless multichannel broadband base station (BBS) for a cellular communications network including determining a number of available channel processor (CP) resources which are unused in a BBS. In response to notification of a subscriber call to be processed by a cell of the BBS, a determination is made as to whether the number of available CP resources is at least one. If so, then the call is assigned to any available CP resource in the BBS. Each of the CPs in the BBS process any of a plurality of traffic channels contained on any frequency channel assigned to the BBS. In addition, an apparatus for practicing the method is disclosed.
    • 一种用于在用于蜂窝通信网络的无线多信道宽带基站(BBS)中动态分配信号处理资源的方法,包括确定在BBS中未使用的可用信道处理器(CP)资源的数量。 响应于由BBS的小区处理的订户呼叫的通知,确定可用CP资源的数量是否至少为一个。 如果是,则呼叫被分配给BBS中的任何可用CP资源。 BBS中的每个CP处理包含在分配给BBS的任何频率信道上的多个业务信道中的任何一个。 此外,公开了一种用于实施该方法的装置。
    • 10. 发明授权
    • Reducing peak-to-average variance of a composite transmitted signal via
out-of-band artifact signaling
    • 通过带外伪像信号降低复合发射信号的峰均比变化
    • US5490172A
    • 1996-02-06
    • US270246
    • 1994-07-05
    • Michael A. Komara
    • Michael A. Komara
    • H04B1/04H04L27/26H04W88/02H04K1/02H04L25/03H04L25/49
    • H04B1/0003H04L27/2602H04L27/2618H04B1/04H04W88/02
    • A technique which enables the use of a low cost non-linear power amplifier to generate a wideband composite signal, such as in cellular mobile telephones (CMTs), personal communication systems (PCSs), and other multi-channel wireless system. A constant envelope signal is generated from a wideband composite signal comprised of a combination of many narrowband modulated signals. The technique involves adding one or more out-of-band artifact signals that accurately offset the amplitude variations of the wideband composite signal. The constant envelope signal is then fed to a high power amplifier, and, prior to radio transmission the amplified signal is filtered to remove the out-of-band artifact signals. As a result, only the desired composite signal having any required envelope variations is provided to the antenna, while at the same time, only a constant envelope signal is fed through the power amplifier.
    • 能够使用低成本非线性功率放大器来生成宽带复合信号的技术,例如在蜂窝移动电话(CMT),个人通信系统(PCS)以及其他多信道无线系统中。 由包括许多窄带调制信号的组合的宽带复合信号产生恒定包络信号。 该技术涉及添加一个或多个精确偏移宽带复合信号的幅度变化的带外伪影信号。 然后将恒定包络信号馈送到高功率放大器,并且在无线电传输之前,对放大的信号进行滤波以去除带外伪影信号。 结果,只有具有任何所需的包络变化的期望的复合信号被提供给天线,同时只有恒定包络信号通过功率放大器馈送。