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    OFFSET DIRECT CONVERSION RECEIVER
    1.
    发明申请
    OFFSET DIRECT CONVERSION RECEIVER 审中-公开
    偏移直接转换接收器

    公开(公告)号：WO2010059257A1

    公开(公告)日：2010-05-27

    申请号：PCT/US2009/031252

    申请日：2009-01-16

    Applicant: CISCO TECHNOLOGY, INC. ,  JIN, Hang ,  GRABNER, John

    Inventor： JIN, Hang ,  GRABNER, John

    IPC: H04B1/30

    CPC classification number: H04B1/30

    Abstract: An offset direct conversion receiver apparatus and corresponding receiving method are provided. A received wireless signal is directly downconverted and demodulated to a baseband offset frequency that is offset from zero frequency to produce an in-phase (I) baseband offset signal centered at the baseband offset frequency and a quadrature-phase (Q) baseband offset signal centered at the baseband offset frequency. The I baseband offset signal and Q baseband offset signal are bandpass filtered to produce an I bandpass signal and a Q bandpass signal, respectively. The I bandpass signal and the Q bandpass signal are downconverted from the baseband offset frequency to zero frequency to produce an I baseband receive signal and a Q baseband receive signal. A technique and logic are also provided to select the best baseband offset frequency used in an offset direct conversion receiver.

    Abstract translation: 提供一种偏移直接变换接收装置及相应的接收方法。 接收到的无线信号被直接下变频并被解调为从零频率偏移的基带偏移频率，以产生以基带偏移频率为中心的同相（I）基带偏移信号，并以正交相位（Q）基带偏移信号为中心 在基带偏移频率。 I基带偏移信号和Q基带偏移信号被带通滤波，分别产生I带通信号和Q带通信号。 I带通信号和Q带通信号从基带偏移频率下变频到零频率，以产生I基带接收信号和Q基带接收信号。 还提供了一种技术和逻辑来选择在偏移直接转换接收机中使用的最佳基带偏移频率。

    DYNAMIC CELL CONTROL THROUGH ANTENNA RADIATION PATTERN SYNTHESIS
    3.
    发明申请
    DYNAMIC CELL CONTROL THROUGH ANTENNA RADIATION PATTERN SYNTHESIS 审中-公开
    通过天线辐射模式合成进行动态细胞控制

    公开(公告)号：WO2007139600A2

    公开(公告)日：2007-12-06

    申请号：PCT/US2007/004177

    申请日：2007-02-13

    Applicant: NAVINI NETWORKS, INC. ,  JIN, Hang ,  GRABNER, John

    Inventor： JIN, Hang ,  GRABNER, John

    IPC: H04M1/00

    CPC classification number: H04W16/28

    Abstract: A method for cell control in a wireless network is disclosed, which comprises providing a base transceiver station (BTS) with a plurality of antennas receiving a plurality of feed signals, respectively, varying one or more parameters of the plurality of feed signals according to a plurality of predetermined criteria for synthesizing a desired antenna radiation pattern, wherein a coverage area of the BTS is adjusted.

    Abstract translation: 公开了一种用于无线网络中的小区控制的方法，其包括：提供基站收发台（BTS），多个天线分别接收多个馈送信号，根据一个 用于合成期望的天线辐射图的多个预定准则，其中调整BTS的覆盖区域。

    LOAD BALANCING METHOD FOR WIRELESS COMMUNICATION SYSTEMS
    5.
    发明申请
    LOAD BALANCING METHOD FOR WIRELESS COMMUNICATION SYSTEMS 审中-公开
    无线通信系统的负载平衡方法

    公开(公告)号：WO2007001523A3

    公开(公告)日：2007-10-04

    申请号：PCT/US2006010262

    申请日：2006-03-21

    Applicant: NAVINI NETWORKS INC ,  YANG WEIDONG ,  GRABNER JOHN ,  XU GUANGHAN ,  JIN HANG ,  LI HANG

    Inventor： YANG WEIDONG ,  GRABNER JOHN ,  XU GUANGHAN ,  JIN HANG ,  LI HANG

    IPC: H04W36/22

    CPC classification number: H04W36/22

    Abstract: A method and system is disclosed for load balancing in a wireless communication system. The method has two major processes for load balancing purpose: the first process moves a mobile terminal from its host base station to some less loaded base station after the expiration of a switch time interval determined by the signal strength difference between the original host base station and the base station that the mobile terminal is moving to; the second process moves the mobile terminal from its host base station to the base station with the strongest signal strength periodically.

    Abstract translation: 公开了一种用于无线通信系统中的负载平衡的方法和系统。 该方法具有用于负载平衡目的的两个主要过程：第一过程在由原始主基站与第一过程之间的信号强度差所确定的切换时间间隔期满之后将移动终端从其主基站移动到一些较少负载的基站 移动终端移动到的基站; 第二个过程周期性地将移动终端从其主基站移动到具有最强信号强度的基站。

    FREQUENCY REUSE FOR WIRELESS COMMUNICATION SYSTEM
    7.
    发明申请
    FREQUENCY REUSE FOR WIRELESS COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：WO2006118627A9

    公开(公告)日：2006-11-09

    申请号：PCT/US2006/003731

    申请日：2006-02-02

    Applicant: NAVINI NETWORKS, INC. ,  JIN, Hang ,  GRABNER, John

    Inventor： JIN, Hang ,  GRABNER, John

    IPC: H04W16/04 ,  H04W16/06

    Abstract: A method for improving a frequency utilization efficiency for a wireless communication system having a plurality of cells includes the following steps. At least one primary channel is allocated for each cell, the primary channel being different from that of its neighboring cell. One or more secondary channels are allocated for each cell, which have the same frequencies as their corresponding primary channels but differ in configuration, the secondary channels being different in frequency from the primary channel of the same cell. The secondary channel of the cell is activated for carrying communication traffic when the primary channel of the same cell has a capacity of being used exceeding a predetermined threshold value.

    PROACTIVE GAIN CONTROL SYSTEM FOR COMMUNICATIONS RECEIVERS
    8.
    发明申请
    PROACTIVE GAIN CONTROL SYSTEM FOR COMMUNICATIONS RECEIVERS 审中-公开
    用于通信接收机的主动增益控制系统

    公开(公告)号：WO2006031573A2

    公开(公告)日：2006-03-23

    申请号：PCT/US2005031896

    申请日：2005-09-08

    Applicant: NAVINI NETWORKS INC ,  JIN HANG ,  GRABNER JOHN ,  HUANG JUN ,  HO DANIEL WEE TECK

    Inventor： JIN HANG ,  GRABNER JOHN ,  HUANG JUN ,  HO DANIEL WEE TECK

    IPC: H04B1/04

    CPC classification number: H03G3/3052 ,  H03G2201/103 ,  H03G2201/204 ,  H03G2201/305 ,  H03G2201/706

    Abstract: The present invention discloses a proactive gain control system for a communications receiver. The proactive gain control system includes a variable gain module for outputting an output signal in response to an input signal. A detector detects the output signal and outputs a detection signal representing a signal strength of the output signal. A traffic monitor monitors the output signal and outputs a traffic profile signal indicating that a traffic profile for the input signal will change. A gain computing module outputs a gain adjustment value in response to the detection signal and the traffic profile signal. A gain control module outputs a gain control signal to the variable gain module, which determines a gain between the input and output signals, in response to the gain adjustment value.

    Abstract translation: 本发明公开了一种用于通信接收机的主动增益控制系统。 主动增益控制系统包括可变增益模块，用于响应于输入信号输出输出信号。 检测器检测输出信号并输出​​表示输出信号的信号强度的检测信号。 交通监控器监视输出信号并输出​​指示用于输入信号的业务分布将改变的业务分布信号。 增益计算模块响应于检测信号和流量分布信号输出增益调整值。 增益控制模块响应于增益调整值，向可变增益模块输出增益控制信号，该可变增益模块确定输入和输出信号之间的增益。

    ANTENNA ARRAY CALIBRATION
    9.
    发明申请
    ANTENNA ARRAY CALIBRATION 审中-公开
    天线阵列校准

    公开(公告)号：WO2006026582A2

    公开(公告)日：2006-03-09

    申请号：PCT/US2005/030739

    申请日：2005-08-29

    Applicant: NAVINI NETWORKS, INC. ,  JIN, Hang ,  GRABNER, John

    Inventor： JIN, Hang ,  GRABNER, John

    IPC: G01S7/40 ,  H01Q3/22 ,  H04B17/00

    CPC classification number: H01Q3/267 ,  G01S7/40 ,  H04B17/21

    Abstract: A smart antenna calibration system is disclosed for calibrating an antenna array having a plurality of antennas. Each antenna has a calibration coupler for providing a monitoring signal indicative of a signal passing through a transceiver associated thereof, and a processing unit including at least one signal splitter that splits at least one monitoring signal and a combiner array comprising one or more combiners for combining at least two split monitoring signals from first and second antennas to produce a first combined signal representing an in-phase sum and a second combined signal representing a quadrature sum. A power detector is in communication with the processing unit, which is configured to estimate a power level of the signal passing each of the first and second antennas and the in-phase power and quadrature power of the in-phase and quadrature sums for determining a phase difference of the signal on the antennas.

    Abstract translation: 公开了一种用于校准具有多个天线的天线阵列的智能天线校准系统。 每个天线具有校准耦合器，用于提供指示通过与其相关联的收发器的信号的监测信号;以及处理单元，包括分离至少一个监测信号的至少一个信号分离器和包括一个或多个组合器的组合器阵列，用于组合 来自第一和第二天线的至少两个分离监控信号，以产生表示同相和的第一组合信号和表示正交和的第二组合信号。 功率检测器与处理单元通信，该处理单元被配置为估计通过第一和第二天线中的每一个的信号的功率水平以及同相和正交和的同相功率和正交功率，以确定 天线上信号的相位差。

    METHOD AND SYSTEM TO IMPROVE TRANSMITTER LINEARIZATION
    10.
    发明申请
    METHOD AND SYSTEM TO IMPROVE TRANSMITTER LINEARIZATION 审中-公开
    改进发射机线性化的方法和系统

    公开(公告)号：WO2007067778A3

    公开(公告)日：2008-12-31

    申请号：PCT/US2006047063

    申请日：2006-12-07

    Applicant: NAVINI NETWORKS INC ,  JIN HANG ,  JIANG JING ,  GRABNER JOHN

    Inventor： JIN HANG ,  JIANG JING ,  GRABNER JOHN

    IPC: H04B1/04

    CPC classification number: H04B1/0475 ,  H03F1/3241 ,  H04B2001/0425

    Abstract: The present invention discloses a method and system to compensate for the nonlinearity of the wireless transmitter. The method includes sending a predetermined input bit stream to the power amplifier, calculating the coefficients of the polynomial representing the response curve of the power amplifier and generating the predistortion coefficients of the polynomial representing the response curve of the predistortor. The method linearizes the response curve of the transmitter chain of a wireless station.

    Abstract translation: 本发明公开了一种补偿无线发射机非线性的方法和系统。 该方法包括向功率放大器发送预定的输入比特流，计算表示功率放大器的响应曲线的多项式的系数，并产生表示预失真器的响应曲线的多项式的预失真系数。 该方法将无线电台发射机链的响应曲线线性化。

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