Signaling method for CDMA quality based power control
    1.
    发明授权
    Signaling method for CDMA quality based power control 失效
    基于CDMA质量的信号处理方法

    公开(公告)号:US6154450A

    公开(公告)日:2000-11-28

    申请号:US916440

    申请日:1997-08-22

    CPC分类号: H04W52/04

    摘要: A CDMA mobile telecommunications system comprises a base station (20) having a radio channel connection to a mobile station (22). The base station (20) determines a signal to interference/noise ratio (SINR) with respect to the signal received from the mobile station (22), compares the signal to interference/noise ratio (SNR) for the mobile station (22) with a target signal to interference/noise ratio (TSINR), and transmits a power level command to the mobile station (22) in accordance with the comparison. A mobile switching center (24) generates information for updating the target signal to interference/noise ratio (TSINR)and transmits the information for updating the target signal to interference/noise ratio (TSINR) to the base station (20) using in-band signaling.

    摘要翻译: CDMA移动电信系统包括具有到移动台(22)的无线电信道连接的基站(20)。 基站(20)相对于从移动站(22)接收到的信号确定信噪比(SINR),将移动站(22)的信号与干扰/噪声比(SNR)与 目标信号与干扰/噪声比(TSINR),并根据比较向移动站(22)发送功率电平命令。 移动交换中心(24)产生用于更新目标信号与干扰/噪声比(TSINR)的信息,并使用带内信号将用于更新目标信号的信息与干扰/噪声比(TSINR)发送到基站(20) 信令。

    Power control in a CDMA mobile communications system
    2.
    发明授权
    Power control in a CDMA mobile communications system 有权
    CDMA移动通信系统中的功率控制

    公开(公告)号:US06463296B1

    公开(公告)日:2002-10-08

    申请号:US09251018

    申请日:1999-02-16

    IPC分类号: H04Q720

    摘要: A method for controlling the power transmission levels in a spread spectrum or CDMA cellular system is disclosed, in which the decision to increase or decrease the transmission power level of a mobile station or base station, and the amount of any such increase or decrease made, is based on the weighted combination of a plurality of factors that indicate existing channel conditions. For example, the weight can be set according to the reliability of each channel condition factor involved.

    摘要翻译: 公开了一种用于控制扩频或CDMA蜂窝系统中的功率传输电平的方法,其中增加或减少移动台或基站的发射功率电平的决定以及任何这种增加或减少的量, 基于指示现有信道条件的多个因素的加权组合。 例如,可以根据所涉及的每个信道条件因素的可靠性设置权重。

    Downlink power control in a cellular mobile radio communications system
    3.
    发明授权
    Downlink power control in a cellular mobile radio communications system 失效
    蜂窝移动无线电通信系统中的下行链路功率控制

    公开(公告)号:US6144861A

    公开(公告)日:2000-11-07

    申请号:US55781

    申请日:1998-04-07

    CPC分类号: H04W52/24 H04W52/40

    摘要: The transmit power of a base station transmission to a mobile station is advantageously controlled. The base station receives a signal from the mobile station and determines a signal-to-interference ratio (SIR) associated with the received signal. The base station controls its transmit power to the mobile station using the determined SIR value in conjunction with a transmit power control command received from the mobile station. When the mobile station is in the process of a soft handover involving two or more base stations, each of those base stations determines an SIR value associated with a signal received from the mobile station. Moreover, each of the base stations controls its respective power using both the power control command received from the mobile station and the SIR determined by that base station. Similarly, when the mobile station is in the process of softer handover involving two or more sectors of a single base station, the SIR associated with a signal received from the mobile station in each of those base station sectors is determined and used to control the respective power of each base station sector in conjunction with a power control command received from the mobile station.

    摘要翻译: 有利地控制基站传输到移动台的发射功率。 基站从移动站接收信号,并确定与接收信号相关联的信号干扰比(SIR)。 结合从移动台接收到的发射功率控制命令,基站使用确定的SIR值来控制其对移动站的发射功率。 当移动台处于涉及两个或多个基站的软切换的过程中时,这些基站中的每个基站确定与从移动台接收的信号相关联的SIR值。 此外,每个基站使用从移动台接收的功率控制命令和由该基站确定的SIR来控制其各自的功率。 类似地,当移动站处于涉及单个基站的两个或更多个扇区的更软切换的过程中时,确定与从这些基站扇区中的每一个中的移动站接收到的信号相关联的SIR,并用于控制相应的 结合从移动台接收的功率控制命令,每个基站扇区的功率。

    Power presetting in a radio communication system
    6.
    发明授权
    Power presetting in a radio communication system 失效
    电力预设在无线电通信系统中

    公开(公告)号:US6067446A

    公开(公告)日:2000-05-23

    申请号:US678313

    申请日:1996-07-11

    IPC分类号: H04B7/005 H04B7/26 H04B7/00

    摘要: A radio communication method and system employs power level presetting to mitigate the increase in interference caused by the discontinuous transmission of mobile stations. In the downlink, power presetting entails detecting the entry (or removal) of mobile stations to a cell, and in response thereto, calculating a plurality of power adjustment values for each mobile station within the cell. In the uplink, power presetting entails estimating an increase in interference caused by the entry (or removal) of mobile stations to a cell, and using this estimate for calculating an updated power target for each mobile station within the cell. Power presetting is also initiated in response to one or more mobile stations switching from high data-rate mode to low data-rate mode, or vice versa.

    摘要翻译: 无线电通信方法和系统采用功率电平预设来减轻由于移动台的不连续传输引起的干扰的增加。 在下行链路中,功率预置需要检测移动站到小区的入口(或去除),并且响应于此,为小区内的每个移动站计算多个功率调整值。 在上行链路中,功率预置需要估计移动台进入(或移除)到小区的干扰增加,并且使用该估计来计算小区内的每个移动站的更新的功率目标。 响应于一个或多个移动台从高数据速率模式切换到低数据速率模式,也启动功率预设,反之亦然。