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    METHOD AND SYSTEM FOR THE DYNAMIC MODIFICATION OF CONTROL PARAMETERS IN A TRANSMITTER POWER CONTROL SYSTEM
    42.
    发明公开
    METHOD AND SYSTEM FOR THE DYNAMIC MODIFICATION OF CONTROL PARAMETERS IN A TRANSMITTER POWER CONTROL SYSTEM 失效
    方法及系统的传输功率控制系统动力学修改调整参数。

    公开(公告)号：EP0685129A1

    公开(公告)日：1995-12-06

    申请号：EP94907396.0

    申请日：1994-02-01

    Applicant: QUALCOMM INCORPORATED

    Inventor： PADOVANI, Roberto ,  ZIV, Noam

    IPC: H04B1 ,  H04B7 ,  H04J13 ,  H04L1 ,  H04L25

    CPC classification number: H04W52/267 ,  H04B2201/70705 ,  H04L1/0046 ,  H04L1/08 ,  H04L1/201 ,  H04L25/0262 ,  H04W52/12 ,  H04W52/20 ,  H04W52/50

    Abstract: In a communication system in which direct sequence spread spectrum modulation techniques are used, interference is generated in communications by remote stations since the communications share the same frequency spectrum. In order to increase system capacity the power level of the remote station transmitters are controlled by the local station. A setpoint in generated at the local station by a power control processor (118) and compared by a comparator (120) with the remote station signal strength measured at the local station by a power averager (114). The result of this comparison is used to generate power level adjustment commands by a command generator (122) which are transmitted to the remote station. The remote station is responsive to the power level adjustment commands for increasing or decreasing remote station transmitter power. In a spread spectrum communication system in which data is encoded at variable data rates, the local station determines via a rate determination processor (116) the rate at which received data was encoded by the transmitting remote station. The data is decoded by decoder (112) at each possible rate with error metrics generated that are representative of the quality of the data decoded at each rate. A rate decision algorithm is used by processor (116) to evaluate the error metrics and make a decision on the rate at which the data was transmitted. A pattern match of rate decisions is used by processor (118) to modify a setpoint so as to closely control the transmitting power of the remote station as a function of the quality of the received data.

    Abstract translation: 由于通信共享相同的频谱在其中直接序列扩频调制技术的通信系统中使用的干扰是由远程站的通信中产生。 为了提高系统容量的远程站发射机的功率电平是由本地站控制。 设定点是由本地站生成并与在本地站测得的远程站的信号强度相比较。 该比较的结果被用来生成被发送到远程站的功率电平调整的命令。 远程站响应于用于增加或减少远程站发射机功率的功率电平调整的命令。 在其中的数据的扩展频谱通信系统在可变数据速率进行编码，本地站确定性地雷的速率接收到由发送远程站编码数据。 数据在每个可能的速率进行解码以生成误差度量确实代表的数据的质量的解码在每个速率。 一个利率决策算法来评估误差度量，并在利率决定在哪个数据，反式mitted。 的速率决定的图案匹配用于修改的设定点以便紧密地控制远程站的发射功率作为接收的数据的质量的函数。

    DIVERSITY RECEIVER IN A CDMA CELLULAR TELEPHONE SYSTEM
    48.
    发明授权
    DIVERSITY RECEIVER IN A CDMA CELLULAR TELEPHONE SYSTEM 失效
    分集接收机对于码分多址电话电池系统

    公开(公告)号：EP0500761B2

    公开(公告)日：2007-03-21

    申请号：EP90917730.5

    申请日：1990-11-05

    Applicant: QUALCOMM INCORPORATED

    Inventor： GILHOUSEN, Klein, S. ,  PADOVANI, Roberto ,  WHEATLEY, Charles, E., III

    IPC: H04L27/30

    CPC classification number: H04B1/7115 ,  H04B1/712 ,  H04B2201/70701 ,  H04L1/06

    Abstract: A spread spectrum receiver subsystem for utilization in a CDMA cellular telephone having a searcher receiver (44) for scanning the time domain so as to use the PN processing gain and time discrimination properties of spread spectrum coding to determine the location in the time domain and the received signal strength of multiple receptions of a pilot signal traveling upon one or more physical propagation paths to reception. The searcher receiver (44) provides a control signal indicative of the received pilot signals of greatest strength and corresponding time relationship. A data receiver (40, 42) receives spread spectrum communication signals accompanying each received pilot signal and is responsive to the searcher control signal for acquiring and demodulating a spread spectrum communication signal, concomitant with the pilot signal of greatest signal strength, and thus providing a corresponding encoded output signal bearing information.

    METHODS AND APPARATUSES FOR PROVIDING TERNARY POWER CONTROL IN A COMMUNICATION SYSTEM
    49.
    发明授权
    METHODS AND APPARATUSES FOR PROVIDING TERNARY POWER CONTROL IN A COMMUNICATION SYSTEM 有权
    方法和三元功率控制器件的通信系统

    公开(公告)号：EP1036437B1

    公开(公告)日：2006-12-27

    申请号：EP98960573.8

    申请日：1998-11-30

    Applicant: QUALCOMM INCORPORATED

    Inventor： PADOVANI, Roberto

    IPC: H04B7/005

    CPC classification number: H04W52/367 ,  H04W52/12 ,  H04W52/24 ,  H04W52/40 ,  H04W52/58

    Abstract: A power control system for communication systems which utilizes a ternary signaling scheme to reduce or eliminate limit cycling which occurs as the result of using a binary signaling scheme. The power control values (each having one of three possible values) are not encoded and are punctured onto the data to improve the response time of the power control loop and allow for dynamic adjustment of the transmit power. The power up, power down, and do nothing commands are represented by positive, negative and zero values (e.g., +1, -1, and 0), respectively. The remote station (6) decreases its transmit power if any base station issues a power down command, maintains its transmit power if no base stations (4) issue a power down command and at least one base station issues a do nothing command, and increases its transmit power if all base station issue power up commands.

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