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    • 1. 发明申请
    • METHOD FOR FREQUENCY PLANNING IN WIRELESS LOCAL LOOP COMMUNICATION SYSTEM
    • 无线本地环路通信系统中频率规划的方法
    • WO1998020691A1
    • 1998-05-14
    • PCT/US1997019416
    • 1997-10-30
    • AIRNET COMMUNICATIONS CORPORATIONDONER, John, R.
    • AIRNET COMMUNICATIONS CORPORATION
    • H04Q07/22
    • H04W16/12H04L5/0023H04L5/0037H04L5/006H04W16/24H04W84/14
    • A Frequency allocation technique for a wireless system which employs remote subscriber Field Access Units (FAUs, 20-a, 20-d) that use omni-directional antennas in an inner region of a cell, and directional antennas in an outer region of the cell. Different frequency subsets are used for the inner and outer cell regions and FAUs located in the inner regions of homologous cells maintain separation from one another by limiting their operating power to a level needed to complete the radio link. A receiver portion of the base station (12) has the capability to determine received signal power for each channel. This provides the basic input for a channel selection algorithm which determines the quietest channel from among those channels not in use. A further constraint on the frequency allocation process is that a minimum number of channels always remains unused. That is, for example, among the available channels in each cell, only a subset of the channels are actually ever allowed to become active.
    • 一种使用使用在小区的内部区域中使用全向天线的远程用户现场接入单元(FAU,20-a,20-d)的无线系统的频率分配技术,以及在所述小区的外部区域中的定向天线 。 不同的频率子集用于内部和外部细胞区域,并且位于同源细胞的内部区域中的FAU通过将其操作功率限制到完成无线电链路所需的水平来保持彼此分离。 基站(12)的接收机部分具有确定每个信道的接收信号功率的能力。 这提供了一个通道选择算法的基本输入,该算法确定了那些没有使用的通道中最安静的通道。 频率分配过程的进一步约束是最少数量的信道总是保持未使用。 也就是说,例如,在每个小区的可用信道之中,实际上只允许一个子信道被激活。
    • 2. 发明申请
    • METHOD FOR FREQUENCY PLANNING IN WIRELESS LOCAL LOOP COMMUNICATION SYSTEM
    • 无线本地环路通信系统中频率规划的方法
    • WO1998020685A2
    • 1998-05-14
    • PCT/US1997019689
    • 1997-11-03
    • AIRNET COMMUNICATIONS CORPORATIONDONER, John, R.
    • AIRNET COMMUNICATIONS CORPORATION
    • H04Q00/00
    • H04W16/12H04L5/0023H04L5/0037H04L5/006H04W16/24H04W84/14
    • A frequency allocation technique for a wireless system which employs remote subscriber Fixed Access Units (FAUs) that use omni-directional antennas in an inner region of a cell, and directional antennas in an outer region of the cell. Different frequency subsets are used for the inner and outer cell regions and FAUs located in the inner regions of homologous cells maintain separation from one another by limiting their operating power to a level needed to complete the radio link from the base station. A receiver portion of the base station has the capability to determine received signal power for each channel within the bandwidth being served. This provides the basic input for a channel selection algorithm which determines the quietest channel from among those channels not in use. A further constraint on the frequency allocation process is that a minimum number of channels always remain unused. That is, for example, among the available channels in each cell, only a subset of the channels are actually ever allowed to become active.
    • 一种用于无线系统的频率分配技术,其使用在小区的内部区域中使用全向天线的远程用户固定接入单元(FAU)以及小区的外部区域中的定向天线。 不同的频率子集用于内部和外部细胞区域,并且位于同源细胞的内部区域中的FAU通过将其操作功率限制到从基站完成无线电链路所需的水平来保持彼此分离。 基站的接收机部分具有在所服务的带宽内确定每个信道的接收信号功率的能力。 这提供了一个通道选择算法的基本输入,该算法确定了那些没有使用的通道中最安静的通道。 对频率分配过程的进一步约束是最少数量的信道总是保持不用。 也就是说,例如,在每个小区的可用信道之中,实际上只允许一个子信道被激活。
    • 3. 发明申请
    • BASE STATION RECEIVER WITH WIDEBAND CHANNELIZER AND ANTENNA DIVERSITY SELECTION
    • 基站采用宽带通道和天线多样性选择
    • WO1997037439A1
    • 1997-10-09
    • PCT/IB1996000399
    • 1996-04-01
    • AIRNET COMMUNICATIONS CORPORATION
    • AIRNET COMMUNICATIONS CORPORATIONSMITH, Jeffrey, W.
    • H04B07/08
    • H04W88/08H04B7/0845
    • A diversity technique for use in a multichannel receiver such as a cellular base station which includes at least a pair of wideband digital filter bank analyzers, or so-called channelizers, to provide digital output signals representing the signals received from a number of mobile subscriber units operating in or near the cell in which the base station is located. Samples of the digital output signals are presented to a time division multiplex (TDM) bus in a predetermined sequence, such as in a sequence which increases incrementally by channel number. A diversity decision is then made by processing each of the channelizer outputs for each channel in the sequence, to determine which one of the outputs contains the strongest receive signal. The channelizer path so determined is then connected to the rest of the base station, on a per channel basis, through a delay unit and multiplexer. As a result, the diversity-enhanced outputs remain in the same time division multiplex, pre-defined sequence so that further base station processing, such as demodulation, can occur in the same way as for wideband base station system which does not take advantage of diversity techniques.
    • 一种用于诸如蜂窝基站的多信道接收机的分集技术,其包括至少一对宽带数字滤波器组分析器或所谓的信道化器,以提供表示从多个移动用户单元接收的信号的数字输出信号 操作在基站所在的小区中或附近。 数字输出信号的样本以预定的顺序被呈现给时分多路复用(TDM)总线,例如以按通道号逐渐增加的顺序。 然后通过处理序列中的每个信道的每个信道化器输出来进行分集决定,以确定哪个输出包含最强的接收信号。 然后,如此确定的信道化器路径通过延迟单元和多路复用器在每个信道的基础上连接到基站的其余部分。 结果,分集增强输出保持在相同的时分复用,预定义的序列中,使得诸如解调的进一步的基站处理可以以与不利用的宽带基站系统相同的方式发生 多样性技术。
    • 4. 发明申请
    • CELLULAR SYSTEM PLAN USING IN BAND-TRANSLATORS
    • 细分系统计划在带式翻译器中使用
    • WO1997032442A1
    • 1997-09-04
    • PCT/US1997003026
    • 1997-02-26
    • AIRNET COMMUNICATIONS CORPORATION
    • AIRNET COMMUNICATIONS CORPORATIONCARNEY, Ronald, R.POOR, Victor, D.
    • H04Q07/36
    • H04W16/26H04B7/2606H04W16/12H04W84/045
    • 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. For example, the available frequency bands are divided into at least two sub-bands, where a first sub-band is assigned for use as a home base station to translator base station communication link and a second sub-band is assigned for use by the mobile station to translator communication link. If desired, a third sub-band can then be used for deployment of base transceiver systems in the conventional fashion where the base station equipment located at the center of a cell site communicates only with mobile stations located within that cell.
    • 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部小区中,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带内进行操作,即在分配给服务提供商的频率内。 例如,可用的频带被划分为至少两个子带,其中第一子带被分配用作家用基站到转换器基站通信链路,并且第二子带被分配用于由 移动台到翻译通信链路。 如果需要,则可以以传统方式将第三子带用于基站收发器系统的部署,其中位于小区站点中心的基站设备仅与位于该小区内的移动站进行通信。
    • 6. 发明申请
    • FREQUENCY PLAN THAT ACCOMMODATES DEMAND GROWTH
    • 频率计划,满足需求增长
    • WO1998011748A2
    • 1998-03-19
    • PCT/US1997013699
    • 1997-09-12
    • AIRNET COMMUNICATIONS CORPORATION
    • AIRNET COMMUNICATIONS CORPORATIONDONER, John, R.
    • H04Q07/36
    • 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. The groups are further identified as even and odd groups. The twelve cell groups are laid out in rectangular shapes of four cells wide 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 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。 这些组进一步标识为偶数和奇数组。 十二个单元组以四个单元宽三个单元的矩形形状布置,其中左上部分中的第一组三个单元被分配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。 与右上右右位置相关联的第三组和第四组单元被分配第一和第二奇数索引频率组。 随着业务密度增加,小区被分成六个扇区,每个扇区被分配另一个奇数或偶数频率组,以实现重用系数为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。
    • 7. 发明申请
    • FFT-BASED CHANNELIZER AND COMBINER EMPLOYING RESIDUE-ADDER-IMPLEMENTED PHASE ADVANCE
    • 基于FFT的通道器和组合器采用残留加法器实现的相位提前
    • WO1997028610A1
    • 1997-08-07
    • PCT/US1997001826
    • 1997-02-03
    • AIRNET COMMUNICATIONS CORPORATION
    • AIRNET COMMUNICATIONS CORPORATIONWILLIAMS, Terry, Lee
    • H04B01/38
    • H04J1/05H04B1/38H04L5/06H04L27/0004H04L27/2628H04L27/264H04L27/2652H04W88/08
    • 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)的输出的频率转换是通过旋转 FFT输入元件之间的对应关系和乘法器(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。
    • 8. 发明申请
    • MULTICHANNEL BROADBAND TRANSCEIVER SYSTEM MAKING USE OF A DISTRIBUTED CONTROL ARCHITECTURE FOR DIGITAL SIGNAL PROCESSOR ARRAY
    • 多通道宽带收发器系统使用数字信号处理器阵列的分布式控制架构
    • WO1997022220A2
    • 1997-06-19
    • PCT/US1996018413
    • 1996-11-08
    • AIRNET COMMUNICATIONS CORPORATION
    • AIRNET COMMUNICATIONS CORPORATIONSCHWALLER, John, F.
    • H04Q07/30
    • H04W88/08
    • A control message communication mechanism for use in a broadband transceiver system that includes multiple digital signal processors for performing real time signal processing tasks. One of the digital signal processors (DSPs) is designated as a master DSP. The remainder of the DSPs are arranged in rows and columns to provide a two-dimensional array. A pair of bit-serial interfaces on each DSP are connected in a vertical bus and horizontal loop arrangement. The vertical bus arrangement provides a primary mechanism for the master DSP to communicate control messages to the array DSPs. The horizontal loop mechanism provides a secondary way for DSPs to communicate control information with one another, without involving the master DSP, such as may be required to handle a particular call, without interrupting the more time critical primary connectivity mechanism.
    • 一种用于宽带收发机系统中的控制消息通信机制,包括用于执行实时信号处理任务的多个数字信号处理器。 数字信号处理器(DSP)之一被指定为主DSP。 其余的DSP被排列成行和列以提供二维阵列。 每个DSP上的一对位串行接口以垂直总线和水平环路布置连接。 垂直总线布置为主DSP提供了向阵列DSP传送控制消息的主要机制。 水平循环机制为DSP提供了彼此通信控制信息的次要方式,而不需要主控DSP处理特定的呼叫,而不会中断更多时间关键的主要连接机制。
    • 10. 发明申请
    • MOBILE TELEPHONE LOCATION PROCESS MAKING USE OF HANDOFF DATA
    • 移动电话位置处理使用手动数据
    • WO1996039638A1
    • 1996-12-12
    • PCT/US1996010424
    • 1996-06-05
    • AIRNET COMMUNICATIONS CORPORATION
    • AIRNET COMMUNICATIONS CORPORATIONDONER, John, R.
    • G01S05/14
    • G01S5/12G01S5/0036G01S5/0252H04W24/10H04W36/30H04W56/0045H04W64/00
    • A system for determining the location of a mobile station (MS) 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 (BS) 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 (22) which return identical mobile data. The road is thus segmented into constant segments 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.
    • 一种用于基于可移动的移动数据值(例如由移动辅助切换(MAHO)过程提供的那些)来确定移动站(MS)的位置的系统。 移动台进行附近基站(BS)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(22)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常数段,并且在相关联的移动数据向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。 将移动向量顺序地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的道路附近。 从那时起,输入向量向沿着道路的恒定区域提供索引,因此移动站明确地定位到哪个道路,以及沿其所占据的道路的哪个段。