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111. 发明授权

US07155257B2 Communication station with automatic cable loss compensation 有权
标题翻译：通信站具有自动电缆损耗补偿
公开(公告)号：US07155257B2
公开(公告)日：2006-12-26
申请号：US11179083
申请日：2005-07-11
申请人： John Bird , Leonid Kazakevich
发明人： John Bird , Leonid Kazakevich
IPC分类号： H04M1/00 , H04B3/36 , H04Q7/20
CPC分类号： H04W88/08 , H04B3/36 , H04B17/102 , H04B17/18
摘要： A wireless communications systems employing code-division multiple access information transmission techniques includes a transmission facility having ground-based transmission and reception electronic equipment, a remotely located RF power amplifier, an antenna, and an RF cable connecting the ground-based equipment with the remotely located RF power amplifier. Power level detectors in the ground-based equipment and in the remotely located RF power amplifier measure the signal level at each end of the RF cable. A microcontroller compares these measurements and adjusts a variable attenuator in the transmission signal path and a variable attenuator in the received signal path to compensate for signal level variability due to variations in signal loss.
摘要翻译：采用码分多址信息传输技术的无线通信系统包括具有地面传输和接收电子设备的传输设备，位于远端的RF功率放大器，天线以及将地面设备与远程连接的RF电缆定位射频功率放大器。地面设备和遥控功率放大器中的功率电平检测器测量RF电缆每端的信号电平。微控制器将这些测量结果进行比较，并调整传输信号路径中的可变衰减器和接收信号路径中的可变衰减器，以补偿信号损耗变化引起的信号电平变化。

112. 发明授权

US07123939B1 Communication station with automatic cable loss compensation 有权
公开(公告)号：US07123939B1
公开(公告)日：2006-10-17
申请号：US09890391
申请日：1999-12-23
申请人： John Bird , Leonid Kazakevich
发明人： John Bird , Leonid Kazakevich
IPC分类号： H04M1/00
CPC分类号： H04W88/08
摘要： A wireless communications systems employing code-division multiple access information transmission techniques includes a transmission facility having ground-based transmission and reception electronic equipment, a remotely located RF power amplifier, an antenna, and an RF cable connecting the ground-based equipment with the remotely located RF power amplifier. Power level detectors in the ground-based equipment and in the remotely located RF power amplifier measure the signal level at each end of the RF cable. A microcontroller compares these measurements and adjusts a variable attenuator in the transmission signal path and a variable attenuator in the received signal path to compensate for signal level variability due to variations in signal loss.

113. 发明申请

US20060148516A1 Wireless communication method and system with controlled WTRU peer-to-peer communications 有权
公开(公告)号：US20060148516A1
公开(公告)日：2006-07-06
申请号：US11366114
申请日：2006-03-02
申请人： Gautam Reddy , Prabhakar Chitrapu , Leonid Kazakevich , Teresa Hunkeler , Arty Chandra
发明人： Gautam Reddy , Prabhakar Chitrapu , Leonid Kazakevich , Teresa Hunkeler , Arty Chandra
IPC分类号： H04M1/00
CPC分类号： H04W88/04 , G01S5/0027 , H04W4/02 , H04W64/00 , H04W84/00 , H04W88/06
摘要： A wireless network provides controlled wireless communications with multi-mode wireless WTRUs. The wireless network has at least one base station having a transceiver operating in an infrastructure communication mode with multi mode WTRUs and a controller that transmits control signals via infrastructure communications with a WTRU that control peer-to-peer mode communications of that WTRU with other WTRUs. A WTRU has transceiver components configured for selective operation in an infrastructure communication mode with a network base station and in a peer-to-peer communication mode with other WTRUs. The WTRU also has a transceiver controller configured to selectively control peer-to-peer mode communications with other WTRUs based on communication signals received in infrastructure communications with a network base station. Preferably, the transceiver controller is configured to control the transceiver components to switch between infrastructure communication mode and peer-to-peer communication mode based on Quality of Service criteria.

114. 发明授权

US07050800B2 Method and apparatus for WLAN-UMTS interworking employing UMTS air interface 有权
标题翻译：使用UMTS空中接口的WLAN-UMTS互通的方法和装置
公开(公告)号：US07050800B2
公开(公告)日：2006-05-23
申请号：US10319180
申请日：2002-12-13
申请人： Kamel M. Shaheen , Leonid Kazakevich
发明人： Kamel M. Shaheen , Leonid Kazakevich
IPC分类号： H04Q7/20
CPC分类号： H04W92/02
摘要： A method enabling a wireless remote terminal (UE) to access a universal mobile telecommunication system (UMTS) through a wireless local area network (WLAN) wherein UMTS services are transmitted to a format converter from a UMTS transceiver and the format converter changes the format of received messages to a WLAN format before transmission to the UE which is operating in the WLAN mode.
摘要翻译：一种能够使无线远程终端（UE）通过无线局域网（WLAN）访问通用移动电信系统（UMTS）的方法，其中UMTS服务从UMTS收发器发送到格式转换器，并且格式转换器改变格式在以WLAN模式操作的UE发送之前，接收到WLAN格式的消息。

115. 发明授权

US07039378B2 Method and apparatus for estimating and controlling initial time slot gain in a wireless communication system 失效
标题翻译：用于在无线通信系统中估计和控制初始时隙增益的方法和装置
公开(公告)号：US07039378B2
公开(公告)日：2006-05-02
申请号：US11041784
申请日：2005-01-24
申请人： Rui Yang , Donald M. Grieco , Leonid Kazakevich
发明人： Rui Yang , Donald M. Grieco , Leonid Kazakevich
IPC分类号： H04Q7/20
CPC分类号： H03G3/3052 , H03G3/3036 , H03G3/3042 , H03G3/3047 , H04L5/1484 , H04M3/40
摘要： In a time-division duplex (TDD) system, a reliable initialization scheme that is applicable to an automatic gain controller (AGC) at a base station is implemented in various forms depending on the availability of certain information such as signal-to-interference ratio (SIR), spreading factors and other parameters. A more accurate estimation of the initial control word of a gain-adjustable amplifier for one or more time slots is implemented. The scheme is applicable to AGC initialization for each time slot of the TDD system, but is also applicable to other systems of transmission, without limitation.
摘要翻译：在时分双工（TDD）系统中，可以根据某些信息的可用性（例如信号干扰比）来以各种形式实现适用于基站处的自动增益控制器（AGC）的可靠的初始化方案（SIR），扩散因子等参数。实现了用于一个或多个时隙的增益可调放大器的初始控制字的更准确的估计。该方案适用于TDD系统的每个时隙的AGC初始化，但也适用于其他传输系统，但不限于此。

116. 发明授权

US07035242B2 Method and apparatus for delivery of universal mobile telecommunications system (UMTS) based unidirectional services over a wireless local area network (WLAN) 失效
标题翻译：用于通过无线局域网（WLAN）传送基于通用移动电信系统（UMTS）的单向业务的方法和装置，
公开(公告)号：US07035242B2
公开(公告)日：2006-04-25
申请号：US10302143
申请日：2002-11-22
申请人： Kamel M. Shaheen , Leonid Kazakevich
发明人： Kamel M. Shaheen , Leonid Kazakevich
IPC分类号： H04Q7/24 , H04J3/16
CPC分类号： H04W92/02 , H04W4/12 , H04W88/06
摘要： Method and apparatus for delivery of UMTS services to a dual mode mobile station through a WLAN when the mobile station is operating within a WLAN environment. UMTS services are transmitted to a WLAN through a UMTS repeater tuned to receive services addressed to registered IDs and transmit these services to that (those) WLAN(s) having mobile stations registered with the UMTS. The WLAN format converter converts the UMTS format into a WLAN message format and communicates the message to the registered users.
摘要翻译：当移动台在WLAN环境中操作时，通过WLAN向双模移动台传送UMTS业务的方法和装置。通过经调谐以接收寻址到注册ID的服务的UMTS中继器将UMTS服务发送到WLAN，并将这些服务发送到具有向UMTS注册的移动站的那些（那些）WLAN。 WLAN格式转换器将UMTS格式转换成WLAN消息格式，并将消息传达给注册用户。

117. 发明申请

US20050250541A1 Communication station with automatic cable loss compensation 有权
标题翻译：通信站具有自动电缆损耗补偿
公开(公告)号：US20050250541A1
公开(公告)日：2005-11-10
申请号：US11179083
申请日：2005-07-11
申请人： John Bird , Leonid Kazakevich
发明人： John Bird , Leonid Kazakevich
IPC分类号： H03G3/30 , H04B1/04 , H04B1/40 , H04B3/08 , H04B3/36 , H04B7/26 , H04B17/00 , H04W88/08 , H04M1/00
CPC分类号： H04W88/08 , H04B3/36 , H04B17/102 , H04B17/18
摘要： A wireless communications systems employing code-division multiple access information transmission techniques includes a transmission facility having ground-based transmission and reception electronic equipment, a remotely located RF power amplifier, an antenna, and an RF cable connecting the ground-based equipment with the remotely located RF power amplifier. Power level detectors in the ground-based equipment and in the remotely located RF power amplifier measure the signal level at each end of the RF cable. A microcontroller compares these measurements and adjusts a variable attenuator in the transmission signal path and a variable attenuator in the received signal path to compensate for signal level variability due to variations in signal loss.
摘要翻译：采用码分多址信息传输技术的无线通信系统包括具有地面传输和接收电子设备的传输设备，位于远端的RF功率放大器，天线以及将地面设备与远程连接的RF电缆定位射频功率放大器。地面设备和遥控功率放大器中的功率电平检测器测量RF电缆每端的信号电平。微控制器将这些测量结果进行比较，并调整传输信号路径中的可变衰减器和接收信号路径中的可变衰减器，以补偿信号损耗变化引起的信号电平变化。

118. 发明授权

US06377620B1 Balancing amplitude and phase 有权
标题翻译：平衡振幅和相位
公开(公告)号：US06377620B1
公开(公告)日：2002-04-23
申请号：US09233791
申请日：1999-01-19
申请人： Fatih M. Özlütürk , Stephen G. Dick , Leonid Kazakevich
发明人： Fatih M. Özlütürk , Stephen G. Dick , Leonid Kazakevich
IPC分类号： H03H730
CPC分类号： H04L27/0014 , H04L27/22 , H04L2027/0016 , H04L2027/0024
摘要： The present invention balances the amplitude and phase of a received QPSK signal that may have been corrupted during transmission. The system determines the amplitude of the I and Q symbols of a received signal, compares them, and applies a correction to one or both channels to correct for amplitude imbalance. For phase imbalance, the system calculates the cross-correlation of the I and Q symbols which should average to zero. A correction factor is derived from the cross-correlation and applied to both channels, returning the phase cross-correlation to zero. The output from the system is a signal corrected in both amplitude and phase.
摘要翻译：本发明平衡在发送期间可能被破坏的接收的QPSK信号的幅度和相位。系统确定接收信号的I和Q符号的幅度，将其进行比较，并对一个或两个信道进行校正，以校正幅度不平衡。对于相位不平衡，系统计算应平均为零的I和Q符号的互相关。校正因子从互相关导出并应用于两个通道，将相位互相关返回到零。系统的输出是在幅度和相位上均校正的信号。

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