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    • 5. 发明授权
    • Method and apparatus for controlling transmission power in a CDMA
cellular mobile telephone system
    • 用于控制CDMA蜂窝移动电话系统中的发射功率的方法和装置
    • US5485486A
    • 1996-01-16
    • US217003
    • 1994-03-23
    • Klein S. GilhousenRoberto PadovaniLindsay A. Weaver, Jr.
    • Klein S. GilhousenRoberto PadovaniLindsay A. Weaver, Jr.
    • H04B7/005H04B7/26H04W52/00H04W52/02H04W52/06H04W52/08H04W52/10H04W52/12H04W52/34H04W52/36H04W52/40H04W52/52H04J13/02H04B1/69H04B1/707H04J13/04
    • H04W52/343H04B7/2628H04W52/06H04W52/346H04W52/362H04W52/367H04W52/52H04W52/08H04W52/10H04W52/12H04W52/40
    • A power control system for a cellular mobile telephone system in which system users communicate information signals between one another via at least one cell site using code division multiple access spread spectrum communication signals. The power control system controls transmission signal power for each cellular mobile telephone in the cellular mobile telephone system wherein each cellular mobile telephone has an antenna, transmitter and receiver and each cell-site also has an antenna, transmitter and receiver. Cell-site transmitted signal power is measured as received at the mobile unit. Transmitter power is adjusted at the mobile unit in an opposite manner with respect to increases and decreases in received signal power. A power control feedback scheme may also be utilized. At the cell-site communicating with the mobile unit, the mobile unit transmitted power is measured as received at the cell-site. A command signal is generated at the cell-site and transmitted to the mobile unit for further adjusting mobile unit transmitter power corresponding to deviations in the cell site received signal power. The feedback scheme is used to further adjust the mobile unit transmitter power so that mobile unit transmitted signals arrive at the cell-site at a desired power level. In a cell diversity situation, the mobile units transmitter power is adjusted to prevent unnecessary increases in mobile unit transmitter power level.
    • 一种用于蜂窝移动电话系统的功率控制系统,其中系统用户通过使用码分多址扩频通信信号的至少一个小区站点在彼此之间传送信息信号。 功率控制系统控制蜂窝移动电话系统中的每个蜂窝移动电话的传输信号功率,其中每个蜂窝移动电话具有天线,发射机和接收机,并且每个小区站点也具有天线,发射机和接收机。 在移动单元处测量接收到的站点发送信号功率。 相对于接收信号功率的增加和减少,发射机功率在移动单元处以相反的方式被调整。 还可以使用功率控制反馈方案。 在与移动单元通信的小区站点处,移动单元发送的功率在小区站点被接收到。 在小区站点生成指令信号,发送给移动单元,进一步调整与单元现场接收信号功率的偏差对应的移动单元发射机功率。 反馈方案用于进一步调整移动单元发射机功率,使得移动单元发送的信号以期望的功率电平到达小区站点。 在小区分集情况下,调整移动单元发射机功率以防止移动单元发射机功率电平的不必要的增加。
    • 8. 发明授权
    • Method and apparatus for controlling transmission power in a CDMA
cellular mobile telephone system
    • 用于控制CDMA蜂窝移动电话系统中的发射功率的方法和装置
    • US5265119A
    • 1993-11-23
    • US702029
    • 1991-05-17
    • Klein S. GilhousenRoberto PadovaniCharles E. Wheatley, IIILindsay A. Weaver, Jr.Robert D. Blakeney, II
    • Klein S. GilhousenRoberto PadovaniCharles E. Wheatley, IIILindsay A. Weaver, Jr.Robert D. Blakeney, II
    • H04J13/00H04B7/005H04B7/26H04L27/30H04W52/00H04W52/02H04W52/06H04W52/08H04W52/10H04W52/12H04W52/34H04W52/36H04W52/40H04W52/52H04B7/204
    • H04W52/40H04B7/0671H04B7/2628H04W52/0245H04W52/06H04W52/08H04W52/10Y02B60/50
    • A power control system for a cellular mobile telephone system in which system users communicate information signals between one another via at least one cell site using code division multiple access spread spectrum communication signals. The power control system controls transmission signal power for each cellular mobile telephone in the cellular mobile telephone system wherein each cellular mobile telephone has an antenna, transmitter and receiver and each cell-site also has an antenna, transmitter and receiver. Cell-site transmitted signal power is measured as received at the mobile unit. Transmitter power is adjusted at the mobile unit in an opposite manner with respect to increases and decreases in received signal power. A power control feedback scheme may also be utilized. At the cell-site communicating with the mobile unit, the mobile unit transmitted power is measured as received at the cell-site. A command signal is generated at the cell-site and transmitted to the mobile unit for further adjusting mobile unit transmitter power corresponding to deviations in the cell site received signal power. The feedback scheme is used to further adjust the mobile unit transmitter power so that mobile unit transmitted signals arrive at the cell-site at a desired power level. In a cell diversity situation, the mobile units transmitter power is adjusted to prevent unnecessary increases in mobile unit transmitter power level.
    • 一种用于蜂窝移动电话系统的功率控制系统,其中系统用户通过使用码分多址扩频通信信号的至少一个小区站点在彼此之间传送信息信号。 功率控制系统控制蜂窝移动电话系统中的每个蜂窝移动电话的传输信号功率,其中每个蜂窝移动电话具有天线,发射机和接收机,并且每个小区站点也具有天线,发射机和接收机。 在移动单元处测量接收到的站点发送信号功率。 相对于接收信号功率的增加和减少,发射机功率在移动单元处以相反的方式被调整。 还可以使用功率控制反馈方案。 在与移动单元通信的小区站点处,移动单元发送的功率在小区站点被接收到。 在小区站点生成指令信号,发送给移动单元,进一步调整与单元现场接收信号功率的偏差对应的移动单元发射机功率。 反馈方案用于进一步调整移动单元发射机功率,使得移动单元发送的信号以期望的功率电平到达小区站点。 在小区分集情况下,调整移动单元发射机功率以防止移动单元发射机功率电平的不必要的增加。
    • 9. 发明授权
    • Method and apparatus for hard handoff in a CDMA system
    • 用于CDMA系统中硬切换的方法和装置
    • US5848063A
    • 1998-12-08
    • US652742
    • 1996-05-23
    • Lindsay A. Weaver, Jr.David B. MunsingerRoberto PadovaniNoam A. ZivGadi KarmiKlein S. Gilhousen
    • Lindsay A. Weaver, Jr.David B. MunsingerRoberto PadovaniNoam A. ZivGadi KarmiKlein S. Gilhousen
    • H04W24/02H04W36/14H04Q7/00
    • H04W36/30H04W36/0083
    • In a communications network, a network user communicates through a remote unit with another user via at least one base station. The communications network includes a first mobile switching center which controls communications through a first set of base stations including a first base station. The remote unit stores a list of active base stations which has an entry corresponding to each base station with which active communication is established. The first base station has an entry on the list of active base stations. The first base station measures a round trip delay of an active communication signal between the first base station and the remote unit. A handoff of the active communication signal is initiated if the round trip delay of the active communication exceeds a threshold if the first base station is designated as a reference base station. Alternatively, the remote unit also stores a list of candidate base stations comprising an entry corresponding to each base station through which active communication may be possible but is not established. A handoff of the active communication signal is initiated if the list of candidate base stations comprises an entry corresponding to a triggering pilot signal.
    • 在通信网络中,网络用户经由至少一个基站通过远程单元与另一用户进行通信。 通信网络包括第一移动交换中心,其通过包括第一基站的第一组基站来控制通信。 远程单元存储活动基站的列表,其具有对应于建立了主动通信的每个基站的条目。 第一个基站在活动基站列表中有一个条目。 第一基站测量第一基站和远程单元之间的活动通信信号的往返延迟。 如果第一基站被指定为参考基站,则主动通信的往返延迟超过阈值时,启动主动通信信号的越区切换。 或者,远程单元还存储候选基站的列表,其包括对应于每个基站的条目,活动通信可以通过该条目可能但不被建立。 如果候选基站的列表包括与触发导频信号相对应的条目,则启动主动通信信号的越区切换。