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1. 发明授权

US06982971B2 Method and system for handoff between an asychronous CDMA base station and a synchronous CDMA base station 失效
标题翻译：异步CDMA基站与同步CDMA基站之间切换的方法和系统
公开(公告)号：US06982971B2
公开(公告)日：2006-01-03
申请号：US09809896
申请日：2001-03-15
申请人： Edward G. Tiedemann, Jr. , Daisuke Terasawa , Sandip Sarkar , Yu-Cheun Jou , Joseph P. Odenwalder
发明人： Edward G. Tiedemann, Jr. , Daisuke Terasawa , Sandip Sarkar , Yu-Cheun Jou , Joseph P. Odenwalder
IPC分类号： H04Q7/00
CPC分类号： H04W36/0094 , H04B1/70735 , H04J3/0638 , H04J3/0682 , H04W56/0015 , H04W56/0055
摘要： A method and system that enables faster acquisition of the forward link signal of a target base station in a mixed network of synchronous and asynchronous base stations is disclosed. The serving base station transmits in a neighbor list an estimated timing error 417 between the serving base station and a target base station. By utilizing the timing information, a mobile station estimates the relative time offset 408 between forward link signals received from the serving base station and signals received from the target base station. Timing information acquired during handoff enables accurate updating of the estimated timing error 417 subsequently transmitted in the neighbor lists by the base stations.
摘要翻译：公开了一种能够更快地获取同步和异步基站的混合网络中的目标基站的前向链路信号的方法和系统。服务基站在邻居列表中发送服务基站和目标基站之间的估计定时错误417。通过利用定时信息，移动台估计从服务基站接收的前向链路信号与从目标基站接收的信号之间的相对时间偏移408。在切换期间获取的定时信息使得能够准确地更新基站随后在邻居列表中发送的估计定时误差417。

2. 发明申请

US20050176456A1 Systems and methods for performing outer loop power control in wireless communication systems 审中-公开
标题翻译：在无线通信系统中执行外环功率控制的系统和方法
公开(公告)号：US20050176456A1
公开(公告)日：2005-08-11
申请号：US11083866
申请日：2005-03-17
申请人： Tao Chen , Stein Lundby , Sandip Sarkar , Yu-Cheun Jou
发明人： Tao Chen , Stein Lundby , Sandip Sarkar , Yu-Cheun Jou
IPC分类号： H04W52/12 , H04W52/26 , H04W52/28 , H04W52/44 , H04Q7/20
CPC分类号： H04W52/12 , H04W52/267 , H04W52/282 , H04W52/287 , H04W52/44
摘要： Systems and methods for controlling the power level for a mobile station during periods when no data is being transmitted by the mobile station. In one embodiment, data is intermittently transmitted from a mobile station to a base station on a reverse-link traffic channel. When data is being transmitted on the traffic channel, the transmitted data is used by the base station to perform power control operations (e.g., incrementing or decrementing the mobile station's power level, based upon comparison of a received SNR to a target SNR). When no data is being transmitted on the traffic channel, a “zero-rate indicator” is transmitted on the rate indicator channel. The zero-rate indicator is used by the base station to perform power control. Power control based on the zero-rate indicator may use velocity profiles, reliability metrics or other techniques to control adjustment of the power level.
摘要翻译：在移动台没有发送数据的时段期间控制移动台的功率电平的系统和方法。在一个实施例中，数据在反向链路业务信道上从移动站间歇地发送到基站。当在业务信道上发送数据时，基站使用发送的数据来执行功率控制操作（例如，基于接收到的SNR与目标SNR的比较来增加或减少移动台的功率电平）。当业务信道上没有发送数据时，在速率指示符信道上发送“零速率指示符”。零速率指示器由基站用于执行功率控制。基于零速率指示器的功率控制可以使用速度曲线，可靠性度量或其他技术来控制功率水平的调节。

3. 发明授权

US07881739B2 Method and apparatus for adaptive power control in a wireless voice and data communication system 有权
标题翻译：无线语音和数据通信系统中自适应功率控制的方法和装置
公开(公告)号：US07881739B2
公开(公告)日：2011-02-01
申请号：US11058059
申请日：2005-02-14
申请人： Sandip Sarkar , Yu-Cheun Jou
发明人： Sandip Sarkar , Yu-Cheun Jou
IPC分类号： H04Q7/20 , H04B7/00 , H04B1/04 , H04B7/216
CPC分类号： H04W52/282 , G01S11/02 , G01S11/06 , G01S11/10 , H04W52/08
摘要： A method and apparatus for adaptively controlling the power level of transmissions from a remote station by determining the velocity of the remote station. A general classification of the velocity of the remote station can be used to selectively implement a closed loop power control scheme. Power level parameters are used to determine velocity. In accordance with a classification of stationary, low speed, or high speed, the closed loop power control is selectively operated. Velocity can be determined by either the base station or the remote station through various methods. One method is the use of power control bits and/or average power to determine level crossings and excursion times.
摘要翻译：一种用于通过确定远程站的速度来自动控制来自远程站的传输的功率电平的方法和装置。可以使用远程站的速度的一般分类来选择性地实现闭环功率控制方案。功率等级参数用于确定速度。根据静止，低速或高速的分类，选择性地操作闭环功率控制。速度可以由基站或远程站通过各种方法来确定。一种方法是使用功率控制位和/或平均功率来确定电平交叉和偏移时间。

4. 发明授权

US06862457B1 Method and apparatus for adaptive reverse link power control using mobility profiles 有权
标题翻译：使用移动轮廓的自适应反向链路功率控制的方法和装置
公开(公告)号：US06862457B1
公开(公告)日：2005-03-01
申请号：US09598526
申请日：2000-06-21
申请人： Sandip Sarkar , Yu-Cheun Jou
发明人： Sandip Sarkar , Yu-Cheun Jou
IPC分类号： H04B7/26 , G01S11/02 , G01S11/06 , G01S11/10 , G01S19/25 , H04B7/005 , H04B7/00
CPC分类号： H04W52/282 , G01S11/02 , G01S11/06 , G01S11/10 , H04W52/08
摘要： A method and apparatus for adaptively controlling the power level of transmissions from a remote station by determining the velocity of the remote station. A general classification of the velocity of the remote station can be used to selectively implement a closed loop power control scheme. Power level parameters are used to determine velocity. In accordance with a classification of stationary, low speed, or high speed, the closed loop power control is selectively operated. Velocity can be determined by either the base station or the remote station through various methods. One method is the use of power control bits and/or average power to determine level crossings and excursion times.
摘要翻译：一种用于通过确定远程站的速度来自动控制来自远程站的传输的功率电平的方法和装置。可以使用远程站的速度的一般分类来选择性地实现闭环功率控制方案。功率等级参数用于确定速度。根据静止，低速或高速的分类，选择性地操作闭环功率控制。速度可以由基站或远程站通过各种方法来确定。一种方法是使用功率控制位和/或平均功率来确定电平交叉和偏移时间。

5. 发明授权

US06246673B1 Method and system for handoff between an asynchronous CDMA base station and a synchronous CDMA base station 有权
标题翻译：异步CDMA基站与同步CDMA基站之间切换的方法和系统
公开(公告)号：US06246673B1
公开(公告)日：2001-06-12
申请号：US09515042
申请日：2000-02-25
申请人： Edward G. Tiedemann, Jr. , Daisuke Terasawa , Sandip Sarkar , Yu-Cheun Jou , Joseph P. Odenwalder , Abihijit Shanbhag , Serge Willenegger
发明人： Edward G. Tiedemann, Jr. , Daisuke Terasawa , Sandip Sarkar , Yu-Cheun Jou , Joseph P. Odenwalder , Abihijit Shanbhag , Serge Willenegger
IPC分类号： H04Q738
CPC分类号： H04W36/0094 , H04B1/70735 , H04J3/0638 , H04J3/0682 , H04W56/0015 , H04W56/0055
摘要： A method and system that enables faster acquisition of the forward link signal of a target base station in a mixed network of synchronous and asynchronous base stations is disclosed. The serving base station transmits in a neighbor list an estimated timing error 417 between the serving base station and a target base station. By utilizing the timing information, a mobile station estimates the relative time offset 408 between forward link signals received from the serving base station and signals received from the target base station. Timing information acquired during handoff enables accurate updating of the estimated timing error 417 subsequently transmitted in the neighbor lists by the base stations.
摘要翻译：公开了一种能够更快地获取同步和异步基站的混合网络中的目标基站的前向链路信号的方法和系统。服务基站在邻居列表中发送服务基站和目标基站之间的估计定时错误417。通过利用定时信息，移动台估计从服务基站接收的前向链路信号与从目标基站接收的信号之间的相对时间偏移408。在切换期间获取的定时信息使得能够准确地更新基站随后在邻居列表中发送的估计定时误差417。

6. 发明授权

US07286846B2 Systems and methods for performing outer loop power control in wireless communication systems 有权
标题翻译：在无线通信系统中执行外环功率控制的系统和方法
公开(公告)号：US07286846B2
公开(公告)日：2007-10-23
申请号：US10652355
申请日：2003-08-29
申请人： Tao Chen , Stein Lundby , Sandip Sarkar , Yu-Cheun Jou
发明人： Tao Chen , Stein Lundby , Sandip Sarkar , Yu-Cheun Jou
IPC分类号： H04B7/00
CPC分类号： H04W52/38 , H04W52/44
摘要： Systems and methods for controlling the power level for a mobile station during periods when no data is being transmitted by the mobile station. In one embodiment, data is intermittently transmitted from a mobile station to a base station on a reverse-link traffic channel. When data is being transmitted on the traffic channel, the transmitted data is used by the base station to perform power control operations (e.g., incrementing or decrementing the mobile station's power level, based upon comparison of a received SNR to a target SNR). When no data is being transmitted on the traffic channel, a “zero-rate indicator” is transmitted on the rate indicator channel. The zero-rate indicator is used by the base station to perform power control. Power control based on the zero-rate indicator may use velocity profiles, reliability metrics or other techniques to control adjustment of the power level.
摘要翻译：在移动台没有发送数据的时段期间控制移动台的功率电平的系统和方法。在一个实施例中，数据在反向链路业务信道上从移动站间歇地发送到基站。当在业务信道上发送数据时，基站使用发送的数据来执行功率控制操作（例如，基于接收到的SNR与目标SNR的比较来增加或减少移动台的功率电平）。当业务信道上没有发送数据时，在速率指示符信道上发送“零速率指示符”。零速率指示器由基站用于执行功率控制。基于零速率指示器的功率控制可以使用速度曲线，可靠性度量或其他技术来控制功率水平的调节。

7. 发明申请

US20050197150A1 Method and apparatus for adaptive power control in a wireless voice and data communication system 有权
标题翻译：无线语音和数据通信系统中自适应功率控制的方法和装置
公开(公告)号：US20050197150A1
公开(公告)日：2005-09-08
申请号：US11058059
申请日：2005-02-14
申请人： Sandip Sarkar , Yu-Cheun Jou
发明人： Sandip Sarkar , Yu-Cheun Jou
IPC分类号： H04B7/26 , G01S11/02 , G01S11/06 , G01S11/10 , G01S19/25 , H04B7/005 , H04Q7/20
CPC分类号： H04W52/282 , G01S11/02 , G01S11/06 , G01S11/10 , H04W52/08
摘要： A method and apparatus for adaptively controlling the power level of transmissions from a remote station by determining the velocity of the remote station. A general classification of the velocity of the remote station can be used to selectively implement a closed loop power control scheme. Power level parameters are used to determine velocity. In accordance with a classification of stationary, low speed, or high speed, the closed loop power control is selectively operated. Velocity can be determined by either the base station or the remote station through various methods. One method is the use of power control bits and/or average power to determine level crossings and excursion times.
摘要翻译：一种用于通过确定远程站的速度来自动控制来自远程站的传输的功率电平的方法和装置。可以使用远程站的速度的一般分类来选择性地实现闭环功率控制方案。功率等级参数用于确定速度。根据静止，低速或高速的分类，选择性地操作闭环功率控制。速度可以由基站或远程站通过各种方法来确定。一种方法是使用功率控制位和/或平均功率来确定电平交叉和偏移时间。

8. 发明授权

US06564042B1 Velocity-estimation-based gain tables 有权
标题翻译：基于速度估计的增益表
公开(公告)号：US06564042B1
公开(公告)日：2003-05-13
申请号：US09519004
申请日：2000-03-03
申请人： Yu-Cheun Jou , Sandip Sarkar , Jack M. Holtzman
发明人： Yu-Cheun Jou , Sandip Sarkar , Jack M. Holtzman
IPC分类号： H04B106
CPC分类号： H04W52/286 , G01S11/10 , H04W52/146 , H04W52/282
摘要： A method of modifying gain tables for the reverse-link communications in a cdma2000 wireless communication network includes the steps of estimating the velocity of a mobile station for a given frame error rate (FER) and data rate, and providing three gains to choose between based on the estimated velocity in order to specify a reverse-link transmit power level. The velocity estimation may be performed using a level crossing technique, a covariance approximation technique, or a Doppler spectrum estimation technique.
摘要翻译：一种在cdma2000无线通信网络中修改反向链路通信的增益表的方法包括以下步骤：针对给定的帧错误率（FER）和数据速率估计移动站的速度，并提供三种增益以在基于以估计速度来指定反向链路发射功率电平。可以使用电平交叉技术，协方差近似技术或多普勒频谱估计技术来执行速度估计。

9. 发明授权

US06873647B1 Method and system for reducing synchronization time in a CDMA wireless communication system 有权
标题翻译：用于减少CDMA无线通信系统中的同步时间的方法和系统
公开(公告)号：US06873647B1
公开(公告)日：2005-03-29
申请号：US09435312
申请日：1999-11-05
申请人： Edward G. Tiedemann, Jr. , Daisuke Terasawa , Abhijit G. Shanbhag , Yu-Cheun Jou , Joseph P. Odenwalder , Serge Willenegger , Sandip Sarkar
发明人： Edward G. Tiedemann, Jr. , Daisuke Terasawa , Abhijit G. Shanbhag , Yu-Cheun Jou , Joseph P. Odenwalder , Serge Willenegger , Sandip Sarkar
IPC分类号： H04L7/00 , H04B7/26 , H04J3/06 , H04J13/00 , H04J13/18 , H04W48/12 , H04W56/00 , H04B1/69
CPC分类号： H04W56/002 , H04B2201/70701 , H04B2201/709709 , H04J3/0638 , H04J3/0682 , H04J13/0048 , H04J13/18 , H04W48/12
摘要： A method and system for generating forward link channels in a synchronous CDMA base station having a pilot pseudonoise (PN) sequence with a pilot PN sequence offset. In one embodiment the method includes the steps of generating a sync channel including a sync channel message; generating an identification channel including at least the pilot PN sequence offset; and orthogonalizing the sync channel and the identification channel. The identification channel and the sync channel are both transmitted. However, the mobile station may get the pilot PN offset from the identification channel quickly, rather than having to demodulate the entire sync channel message. The identification channel may further include an indication of the phase of the pilot PN sequence, and the epoch of the pilot PN sequence. In one embodiment, the method includes encoding the identification channel using a Golay code.
摘要翻译：一种用于在具有导频PN序列偏移的导频伪噪声（PN）序列的同步CDMA基站中产生前向链路信道的方法和系统。在一个实施例中，该方法包括以下步骤：产生包括同步信道消息的同步信道; 生成至少包括导频PN序列偏移的识别信道; 并使同步信道和识别信道正交化。识别信道和同步信道都被发送。然而，移动台可以快速地从识别信道获得导频PN偏移，而不必解调整个同步信道消息。识别信道还可以包括导频PN序列的相位和导频PN序列的时期的指示。在一个实施例中，该方法包括使用格雷码对识别信道进行编码。

10. 发明申请

US20080194286A1 SYSTEMS AND METHODS FOR PERFORMING OUTER LOOP POWER CONTROL IN WIRELESS COMMUNICATION SYSTEMS 审中-公开
标题翻译：在无线通信系统中执行外环功率控制的系统和方法
公开(公告)号：US20080194286A1
公开(公告)日：2008-08-14
申请号：US12107268
申请日：2008-04-22
申请人： Tao Chen , Stein Lundby , Sandip Sarkar , Yu-Cheun Jou
发明人： Tao Chen , Stein Lundby , Sandip Sarkar , Yu-Cheun Jou
IPC分类号： H04B7/00
CPC分类号： H04W52/38 , H04W52/44
摘要： Systems and methods for controlling the power level for a mobile station during periods when no data is being transmitted by the mobile station. In one embodiment, data is intermittently transmitted from a mobile station to a base station on a reverse-link traffic channel. When data is being transmitted on the traffic channel, the transmitted data is used by the base station to perform power control operations (e.g., incrementing or decrementing the mobile station's power level, based upon comparison of a received SNR to a target SNR). When no data is being transmitted on the traffic channel, a “zero-rate indicator” is transmitted on the rate indicator channel. The zero-rate indicator is used by the base station to perform power control. Power control based on the zero-rate indicator may use velocity profiles, reliability metrics or other techniques to control adjustment of the power level.
摘要翻译：在移动台没有发送数据的时段期间控制移动台的功率电平的系统和方法。在一个实施例中，数据在反向链路业务信道上从移动站间歇地发送到基站。当在业务信道上发送数据时，基站使用发送的数据来执行功率控制操作（例如，基于接收到的SNR与目标SNR的比较来增加或减少移动台的功率电平）。当业务信道上没有发送数据时，在速率指示符信道上发送“零速率指示符”。零速率指示器由基站用于执行功率控制。基于零速率指示器的功率控制可以使用速度曲线，可靠性度量或其他技术来控制功率水平的调节。

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