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    Adaptive base station antenna and method for wireless communications
    2.
    发明公开
    Adaptive base station antenna and method for wireless communications 审中-公开
    自适应基站 - Antenne und Methodefürdrahtloses Kommunikationssystem

    公开(公告)号：EP1184937A1

    公开(公告)日：2002-03-06

    申请号：EP01305726.0

    申请日：2001-07-02

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： Weaver, Carl Francis ,  Wu, Xiao Cheng

    IPC: H01Q1/24 ,  H01Q3/26 ,  H01Q21/20 ,  H01Q25/00

    CPC classification number: H01Q21/20 ,  H01Q1/246 ,  H01Q3/2647 ,  H01Q3/2652 ,  H01Q25/002

    Abstract: A system and method have been developed wherein a cylindrical antenna array is configured and reconfigured in a wireless communication network. Position and signal information are continuously received from wireless mobile units and are used to determine reconfigurations of antenna components of the cylindrical antenna array to enhance performance of the system. As such, base station antennas are dynamically configured to minimize such things as interference and dropped calls, and to maximize their voice quality both within a cell, and among neighboring cells.

    Abstract translation: 已经开发了一种在无线通信网络中配置和重新配置圆柱形天线阵列的系统和方法。 从无线移动单元连续地接收位置和信号信息，并且用于确定圆筒形天线阵列的天线部件的重新配置以增强系统的性能。 因此，基站天线被动态地配置为最小化诸如干扰和掉话的情况，并且在小区内和相邻小区之间最大化其语音质量。

    Method and apparatus for reducing energy consumption for variable-rate vocoded communications
    5.
    发明公开
    Method and apparatus for reducing energy consumption for variable-rate vocoded communications 审中-公开
    用于降低可变速率声码通信的能量消耗的方法和设备

    公开(公告)号：EP1079563A3

    公开(公告)日：2004-08-18

    申请号：EP00306927.5

    申请日：2000-08-14

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： Kamel, Raafat Edward ,  Kuo, Wen-Yi ,  Weaver, Carl Francis ,  Wu, Xiao Cheng ,  Meyers, Martin Howard

    IPC: H04L1/00 ,  H04B7/005 ,  H04L1/08 ,  H04L1/20

    Abstract: A base station assembles a frame including information bits at a vocoding rate for downlink transmission over a traffic channel as channel bits at a channel rate. The base station places at least one rate-indicating bit at a beginning of the frame for indicating the vocoding rate. The mobile station evaluates the downlink transmission with consideration of the vocoding rate indicated by the at least one rate-indicating bit. The mobile station can determine the vocoding rate by decoding the beginning of the frame to permit power control in less than one frame duration from initial receipt of the frame at the mobile station.

    Abstract translation: 基站以业务信道上的下行链路传输的声码速率组装包括信息比特的帧，作为信道速率的信道比特。 基站在帧的开始放置至少一个速率指示比特以指示声码速率。 移动台考虑由至少一个速率指示比特指示的声码速率来评估下行链路传输。 移动台可以通过对帧的开始进行解码来确定声码速率，以允许从移动台处的帧的最初接收起在小于一个帧持续时间内进行功率控制。

    Method and apparatus for estimating pilot coverages
    6.
    发明公开
    Method and apparatus for estimating pilot coverages 有权
    Verfahren undGerätzumSchätzender Pilotendeckungen

    公开(公告)号：EP0986276A2

    公开(公告)日：2000-03-15

    申请号：EP99306917.8

    申请日：1999-08-31

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： Bernstein, Neil E. ,  Wu, Xiao Cheng

    IPC: H04Q7/36

    CPC classification number: H04W16/18 ,  H04W52/32 ,  H04W52/34

    Abstract: A method and system that minimizes pilot signal overlap and radio frequency ("RF") interference by estimating changes in pilot coverage for different traffic channel loading and power conditions. Once base stations are positioned, a terminal for measuring received pilot signal strengths, such as a mobile station or pilot scanner, is used to collect and generate the baseline pilot survey data, which is then stored on a disk or tape. Base station transmit pilot E C /I O s, i.e., traffic channel loads on forward links, are also stored on disk or tape. The invention uses two adjustment factors associated with transmit power and traffic channel loading to optimize for different RF conditions, specifically for different base station transmit power or forward link loading conditions. For each RF condition, the methodology calculates the changes in the baseline pilot survey data. This reflects what E C /I O s a mobile station would receive under the given conditions. The systems engineer collects a set of optimized base station power settings for each of the different traffic channel load conditions. One of these optimized power settings is then selected by the systems engineer for each of the base stations.

    Abstract translation: 一种通过估计不同业务信道负载和功率条件的导频覆盖变化来最小化导频信号重叠和射频（“RF”）干扰的方法和系统。 一旦基站被定位，用于测量接收到的导频信号强度的终端（诸如移动站或导频扫描器）用于收集和生成基准导频测量数据，然后存储在磁盘或磁带上。 基站发送导频EC / IO，即前向链路上的业务信道负载也存储在磁盘或磁带上。 本发明使用与发射功率和业务信道负载相关联的两个调节因子来针对不同的RF条件进行优化，特别针对不同的基站发射功率或前向链路负载条件。 对于每个RF条件，该方法计算基线试点调查数据的变化。 这反映了移动台在给定条件下将接收的EC / IO。 系统工程师为每个不同的业务信道负载条件收集一组优化的基站功率设置。 然后，这些优化的功率设置之一由系统工程师为每个基站选择。

    Synchronization of transmit power level settings for soft handoff in wireless systems by the use of power level constraints
    9.
    发明公开
    Synchronization of transmit power level settings for soft handoff in wireless systems by the use of power level constraints 有权
    通过的功率电平的限制装置的在无线系统中软切换期间的发送功率电平设置的同步

    公开(公告)号：EP1069702A3

    公开(公告)日：2003-05-21

    申请号：EP00305570.4

    申请日：2000-07-03

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： Weaver, Carl Francis ,  Wu, Xiao Cheng

    IPC: H04B7/005

    CPC classification number: H04W52/362 ,  H04W36/18 ,  H04W52/12 ,  H04W52/367 ,  H04W52/40

    Abstract: Base station in a soft handoff is programmed to have a threshold power level to control the power transmitted by the base station on the forward link. When the threshold power level is a minimum-threshold power level, each base station maintains its transmit power level at or above the minimum-threshold power level. When the threshold power level is a maximum-threshold power level, each base station maintains its transmit power level at or below the maximum-threshold power level. Preferably, all power levels are expressed in decibels (dB) relative to the pilot's power level. The threshold power level can be adjustable or fixed. In the case where the threshold power level is fixed, each base station is programmed with the fixed threshold power level, and each base station decides how to adjust its transmit power level locally based on the fixed threshold power level without input from other base stations. In the case where the threshold power level is adjustable, the threshold power level is adjusted by a threshold step size responsive to the transmit power level being substantially equal to the threshold power level for at least a predetermined percentage of a time period. There are two alternatives on how each base station decides how to adjust its transmit power level. In one alternative, each base station participating in a soft handoff sends its power control information to a processor which adjusts the threshold power level and notifies each base station of the new adjusted threshold power level. In the meantime, each base station uses its current threshold power level to locally adjust its transmit power level. In the other alternative, each base station adjusts the threshold power level locally without input from other base stations, and uses the threshold power level to adjust its transmit power level.

    Method and system for controlling forward transmit power in a wireless system
    10.
    发明公开
    Method and system for controlling forward transmit power in a wireless system 有权
    系统和系统在einem drahtlosen系统中的系统和功能

    公开(公告)号：EP1081876A2

    公开(公告)日：2001-03-07

    申请号：EP00307380.6

    申请日：2000-08-29

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： Kamel, Raafat Edward ,  Kuo, Wen-Yi ,  Meyers, Martin Howard ,  Weaver, Carl Francis ,  Wu, Xiao Cheng

    IPC: H04B7/005

    CPC classification number: H04W52/50 ,  H04W52/12 ,  H04W52/146 ,  H04W52/40

    Abstract: A method and system for controlling downlink transmit power during a soft hand-off in a spread-spectrum wireless system supports independent power control of multiple forward channels to reduce fading. For a soft hand-off, a mobile switching center determines if a forward control channel is transmitted from different sectors of base stations than a forward data channel is. The base stations preferably adjust transmit powers of the forward channels grouped into different physical channels by receiving power control data over the allocated reverse power control channels to compensate for fading of the forward channels during a soft hand-off.

    Abstract translation: 在扩频无线系统中的软切换期间控制下行发射功率的方法和系统支持多个前向信道的独立功率控制，以减少衰落。 对于软切换，移动交换中心确定前向控制信道是否从正向数据信道的基站的不同扇区发送。 基站优选地通过在分配的反向功率控制信道上接收功率控制数据来调整分组成不同物理信道的前向信道的发射功率，以补偿在软切换期间前向信道的衰落。

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