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174 条记录 (耗时 0.052 秒)

    Method and apparatus for beam switching in a wireless communication system
    37.
    发明授权
    Method and apparatus for beam switching in a wireless communication system 有权
    用于无线通信系统中的波束切换的方法和装置

    公开(公告)号：US07400606B2

    公开(公告)日：2008-07-15

    申请号：US10825748

    申请日：2004-04-16

    申请人： Roberto Padovani ,  Paul E. Bender ,  Ahmad Jalali ,  Bruce Judson ,  Charles E. Wheatley, III

    发明人： Roberto Padovani ,  Paul E. Bender ,  Ahmad Jalali ,  Bruce Judson ,  Charles E. Wheatley, III

    IPC分类号： H04B7/204

    CPC分类号： H04W16/12 ,  H04W16/02

    摘要： In a CDMA data communication system capable of variable rate transmission, utilization of beam switching techniques decreases the average interference caused by transmissions of a base station to subscriber stations within a cell, and in neighboring cells. Base stations utilize multiple transmit antennas, each transmitting signals at controlled amplitudes and phases, to form transmit signal corresponding to sector divisions. Data and reference signals are transmitted along sector division beams that alternate according to fixed time slots in order to increase system capacity and data rates by maximizing carrier-to-interference ratios (C/I) measured at subscriber stations.

    摘要翻译： 在能够进行可变速率传输的CDMA数据通信系统中，波束切换技术的利用减少了由基站向小区内和相邻小区中的用户台的传输引起的平均干扰。 基站利用多个发射天线，每个发射天线以受控的幅度和相位传输信号，以形成对应于扇区划分的发射信号。 数据和参考信号沿着根据固定时隙交替的扇区分波束传输，以通过最大化在用户台测量的载波干扰比（C / I）来增加系统容量和数据速率。

    Power control in a cellular system using ES/IO and NT/I0 values
    38.
    发明授权
    Power control in a cellular system using ES/IO and NT/I0 values 有权
    使用ES / IO和NT / I0值的蜂窝系统中的功率控制

    公开(公告)号：US07076264B2

    公开(公告)日：2006-07-11

    申请号：US10170949

    申请日：2002-06-12

    申请人： Paul E. Bender ,  Roberto Padovani

    发明人： Paul E. Bender ,  Roberto Padovani

    IPC分类号： H04B7/00

    CPC分类号： H04W52/24

    摘要： A system and method is taught for controlling a power level of transmissions in a communication system. A first station of the communication system transmits signals on a communication channel and a pilot channel. A second station of the communication system measures a signal to noise ratio of the received signal, determines an expected signal to noise ratio of the received signal, determines an indicator in accordance with said measured signal to noise ratio and the expected signal to noise ratio, and transmits the indicator. The indicator is received at the first station the indicator and determines the power level of the next transmission according to said received indicator. Additionally, methods and systems for the measurement of the signal to noise ratio of the received signal, the determination of the expected signal to noise ratio of the received signal, and the determination of the indicator are disclosed.

    摘要翻译： 教导了一种用于控制通信系统中的传输功率电平的系统和方法。 通信系统的第一站在通信信道和导频信道上发送信号。 通信系统的第二站测量接收信号的信噪比，确定接收信号的期望信噪比，根据所测量的信噪比和期望的信噪比确定指示符， 并发送指示符。 指示符在第一站接收指示符，并根据所接收的指示符确定下一个传输的功率电平。 此外，公开了用于测量接收信号的信噪比的方法和系统，接收信号的预期信噪比的确定以及指示符的确定。

    High data rate wireless packet data communications system
    39.
    发明授权
    High data rate wireless packet data communications system 失效
    高数据速率无线数据包数据通信系统

    公开(公告)号：US06894994B1

    公开(公告)日：2005-05-17

    申请号：US09575073

    申请日：2000-05-19

    申请人： Matthew S. Grob ,  Paul E. Bender ,  Peter J. Black ,  Roberto Padovani ,  Noam A. Ziv

    发明人： Matthew S. Grob ,  Paul E. Bender ,  Peter J. Black ,  Roberto Padovani ,  Noam A. Ziv

    IPC分类号： H04B1/707 ,  H04L1/00 ,  H04L1/08 ,  H04L1/16 ,  H04L1/18 ,  H04L12/28 ,  H04L12/56 ,  H04W80/00 ,  H04W84/00 ,  H04B7/216

    CPC分类号： H04L1/0071 ,  H04B1/7103 ,  H04B2201/70702 ,  H04B2201/709709 ,  H04L1/08 ,  H04L1/1809 ,  H04W80/00 ,  H04W84/00

    摘要： A wireless packet data communications system that includes a number of modem pool transceivers (MPTs), one or more modem pool controllers (MPCs), and one or more servers. Each MPT receives and processes data packets to generate a modulated signal (e.g., a CDMA spread spectrum signal) suitable for transmission over a terrestrial communications link. Each MPC provides call related processing for one or more MPTs. The servers couple to the MPTs and MPCs via an Internet Protocol (IP) back-bone and provide management of the communications system. The IP back-bone further interconnects the MPTs with one or more data networks and includes a number of routers that route data packets between the data networks and the MPTs. Each MPT can couple to two or more routers for redundancy. Each MPT is operated as an element in an IP network and is associated with an IP address that identifies the MPT. One to three MPTs can be deployed at each cell site to provide wireless data service coverage for up to three sectors at the cell site. The MPCs can either be centralized and coupled to the MPTs via the IP back-bone or distributed about the communications system.

    摘要翻译： 包括多个调制解调器池收发器（MPT），一个或多个调制解调器池控制器（MPC）以及一个或多个服务器的无线分组数据通信系统。 每个MPT接收和处理数据分组以产生适于通过地面通信链路传输的调制信号（例如，CDMA扩频信号）。 每个MPC为一个或多个MPT提供与呼叫相关的处理。 这些服务器通过互联网协议（IP）背景耦合到MPT和MPC，并提供通信系统的管理。 IP背板进一步将MPT与一个或多个数据网络互连，并且包括在数据网络和MPT之间路由数据分组的多个路由器。 每个MPT可以耦合到两个或更多路由器进行冗余。 每个MPT作为IP网络中的元素运行，并与识别MPT的IP地址相关联。 可以在每个小区站点部署一到三个MPT，以在小区站点为多达三个扇区提供无线数据服务覆盖。 MPC可以集中化，并通过IP背板耦合到MPT，或者分布在通信系统上。