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    • 41. 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传输功率的方法和装置
    • US5056109A
    • 1991-10-08
    • US433031
    • 1989-11-07
    • Klein S. GilhousenRoberto PadovaniCharles E. Wheatley, III
    • Klein S. GilhousenRoberto PadovaniCharles E. Wheatley, III
    • H04B7/005H04B7/26H04W52/00H04W52/02H04W52/06H04W52/08H04W52/10H04W52/12H04W52/40H04W52/52
    • H04W52/0245H04W52/06H04W52/52H04W52/08H04W52/10H04W52/12H04W52/40Y02B60/50
    • 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 as to arrive at the cell-site at a desired 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,以便以期望的功率电平到达小区站点。
    • 46. 发明授权
    • Mobile station assisted timing synchronization in a CDMA communication system
    • CDMA通信系统中的移动台辅助定时同步
    • US08184611B2
    • 2012-05-22
    • US11939455
    • 2007-11-13
    • Edward G. Tiedemann, Jr.Charles E. Wheatley, III
    • Edward G. Tiedemann, Jr.Charles E. Wheatley, III
    • H04J3/06
    • H04J3/0682H04B1/7075H04B1/70753H04B1/7077H04B2201/70701H04B2201/70702H04W56/0015H04W56/0045H04W92/20
    • In the present invention, the slave base station attains synchronization with the reference base station through messages transmitted from and received by a mobile station either in the soft handoff region between the reference base station and the slave base station or within a range which allows the mobile station to communicate with the slave base station. When the mobile station is not in communication with both the reference base station and the slave base station, then the round trip delay between the mobile station and the reference base station is measured by the reference base station. The reference base station communicates the PN code used by the mobile station over the reverse link to the slave base station. The slave base station acquires the signal from the mobile station and determines when the signal from the mobile station arrives. The slave base station then makes an estimate as to the length of the delay between transmission of a signal from the mobile station to the slave base station. Based upon these measurements and estimates, the slave base station determines the error which is present in the slave base station system time.
    • 在本发明中,从基站通过在参考基站和从基站之间的软切换区域内或在允许移动台的范围内由移动站发送和接收的消息与基准基站实现同步 站与从站基站进行通信。 当移动台不与参考基站和从基站进行通信时,由参考基站测量移动台与参考基站之间的往返延迟。 参考基站通过反向链路将由移动站使用的PN码传送到从基站。 从基站从移动台获取信号,并确定何时来自移动台的信号到达。 然后,从基站估计关于从移动台到从基站的信号的发送之间的延迟的长度。 基于这些测量和估计,从基站确定从基站系统时间中存在的错误。
    • 50. 发明授权
    • Mobile station assisted timing synchronization in a CDMA communication system
    • CDMA通信系统中的移动台辅助定时同步
    • US07295531B2
    • 2007-11-13
    • US09841893
    • 2001-04-25
    • Charles E. Wheatley, IIIEdward G. Tiedemann, Jr.
    • Charles E. Wheatley, IIIEdward G. Tiedemann, Jr.
    • H04Q7/00H04Q7/24H04J3/06
    • H04B7/2687H04B1/7075H04B1/70753H04B1/7077H04B2201/70701H04B2201/70702H04J3/0682H04J13/00
    • In the present invention, the slave base station attains synchronization with the reference base station through messages transmitted from and received by a mobile station either in the soft handoff region between the reference base station and the slave base station or within a range which allows the mobile station to communicate with the slave base station. When the mobile station is not in communication with both the reference base station and the slave base station, then the round trip delay between the mobile station and the reference base station is measured by the reference base station. The reference base station communicates the PN code used by the mobile station over the reverse link to the slave base station. The slave base station acquires the signal from the mobile station and determines when the signal from the mobile station arrives. The slave base station then makes and estimate as to the length of the delay between transmission of a signal from the mobile station to the slave base station. Based upon these measurements and estimates, the slave base station determines the error which is present in the slave base station system time.
    • 在本发明中,从基站通过在参考基站和从基站之间的软切换区域内或在允许移动台的范围内由移动站发送和接收的消息与基准基站实现同步 站与从站基站进行通信。 当移动台不与参考基站和从基站进行通信时,由参考基站测量移动台与参考基站之间的往返延迟。 参考基站通过反向链路将由移动站使用的PN码传送到从基站。 从基站从移动台获取信号,并确定何时来自移动台的信号到达。 然后,从基站对从移动台到从基站的信号的发送之间的延迟的长度进行估计。 基于这些测量和估计,从基站确定从基站系统时间中存在的错误。