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1. 发明授权

US07154870B2 Method of handoff control in an enterprise code division multiple access wireless system 有权
标题翻译：企业码分多址无线系统中的切换控制方法
公开(公告)号：US07154870B2
公开(公告)日：2006-12-26
申请号：US11198651
申请日：2005-08-05
申请人： Ki Hyun Joo , Peter S. Rha , Chol Su Kang , Sang Kyoon Hyun
发明人： Ki Hyun Joo , Peter S. Rha , Chol Su Kang , Sang Kyoon Hyun
IPC分类号： H04Q7/00
CPC分类号： H04W36/14 , H04W36/32 , H04W64/00 , H04W80/00
摘要： A wireless office communication system including a wireless internet base station (WIBS) encompassing a base station controller (BSC), a mobile switch controller (MSC), and an ethernet interface module for coupling the wireless internet base station (WIBS) to an existing internet protocol (IP) based network. A wireless office communication system can also be based on the conventional architecture comprising the base station transceiver subsystem BTS, BSC, and MSC. The WIBS or BTS is attached to a number of antennas via different and identifiable delay elements for the purpose of determining the serving antennas of mobile communication units. A location determination logic enables the system to handle handoffs between a WIBS or BTS and the external public communication system in an optimum manner. Handling handoff requests in this manner prevents unnecessary ping-ponging of hand off and can also increase the percentage of successful handoff by frequency monitoring of the quality of the mobile communication units located in the handoff transition area, particularly to the public communication system.
摘要翻译：一种无线办公通信系统，包括包含基站控制器（BSC），移动交换控制器（MSC）以及用于将无线因特网基站（WIBS）耦合到现有互联网的以太网接口模块的无线因特网基站（WIBS）基于协议（IP）的网络。无线办公室通信系统还可以基于包括基站收发器子系统BTS，BSC和MSC的常规架构。为了确定移动通信单元的服务天线，WIBS或BTS通过不同和可识别的延迟元件附接到多个天线。位置确定逻辑使得系统能够以最佳方式处理WIBS或BTS与外部公共通信系统之间的切换。以这种方式处理切换请求防止切换不必要的乒乓球，并且还可以通过频率监视位于切换过渡区域中的移动通信单元的质量，特别是公共通信系统来提高成功切换的百分比。

2. 发明授权

US07016331B1 Method of handoff control in an enterprise code division multiple access wireless system 有权
公开(公告)号：US07016331B1
公开(公告)日：2006-03-21
申请号：US09655107
申请日：2000-09-05
申请人： Ki Hyun Joo , Peter S. Rha , Chol Su Kang , Sang Kyoon Hyun
发明人： Ki Hyun Joo , Peter S. Rha , Chol Su Kang , Sang Kyoon Hyun
IPC分类号： H04Q7/00
CPC分类号： H04W36/14 , H04W36/32 , H04W64/00 , H04W80/00
摘要： A wireless office communication system including a wireless internet base station (WIBS) encompassing a base station controller (BSC), a mobile switch controller (MSC), and an ethernet interface module for coupling the wireless internet base station (WIBS) to an existing internet protocol (IP) based network. A wireless office communication system can also be based on the conventional architecture comprising the base station transceiver subsystem BTS, BSC, and MSC. The WIBS or BTS is attached to a number of antennas via different and identifiable delay elements for the purpose of determining the serving antennas of mobile communication units. A location determination logic enables the system to handle handoffs between a WIBS or BTS and the external public communication system in an optimum manner. Handling handoff requests in this manner prevents unnecessary ping-ponging of hand off and can also increase the percentage of successful handoff by frequency monitoring of the quality of the mobile communication units located in the handoff transition area, particularly to the public communication system.

3. 发明授权

US5365571A Cellular system having frequency plan and cell layout with reduced co-channel interference 失效
标题翻译：蜂窝系统具有频率规划和小区布局，减少了同信道干扰
公开(公告)号：US5365571A
公开(公告)日：1994-11-15
申请号：US064997
申请日：1993-05-24
申请人： Peter S. Rha , Stanley E. Kay , Andrew J. MacDonald
发明人： Peter S. Rha , Stanley E. Kay , Andrew J. MacDonald
IPC分类号： H04W16/02 , H04W16/12 , H04W16/24 , H04W84/14 , H04M11/00 , H04Q7/00
CPC分类号： H04W16/12 , H04W16/02 , H04W16/24 , H04W84/14
摘要： A cellular radio-telephone system has a plurality of cells each of which has S sectors. The cells are grouped into a plurality of clusters each of which has N adjoining cells. Each cell has a set of assigned system frequencies with respective frequency subsets assigned to its sectors so that N groups of co-channel cells exist with each co-channel cell group including one cell from each cluster having channel frequencies corresponding to those for its co-channel cell group. Respective base station antennas are located in the respective sectors of the respective cells, and each of the cell sectors has a plurality of subscriber station directional antennas disposed at predetermined locations within the sector for communication linkage with the associated base station antenna. The cells are generally formed in rows and columns and further are formed to provide a predetermined relative orientation pattern for co-channel cell sectors. Co-channel cells form a first cell tier around a preselected center co-channel cell with a common direction operative as a reference orientation direction for co-channel sectors therein. Co-channel sectors in successive co-channel cells about the first tier being successively oriented in alternating first and second directions with sectors rotated by at least one sector rotation from the reference direction in the clockwise or counter-clockwise direction.
摘要翻译：蜂窝无线电话系统具有多个具有S个扇区的小区。这些单元被分组成多个簇，每个簇具有N个相邻小区。每个小区具有一组分配的系统频率，其中分配给其扇区的各个频率子集，使得存在每组共同信道小区的N组，每个同信道小区包括来自每个群的一个小区，其中信道频率对应于其共同信道小区，通道细胞组。相应的基站天线位于相应小区的相应扇区中，并且每个小区扇区具有设置在扇区内的预定位置处的多个订户站定向天线，用于与相关联的基站天线的通信连接。电池通常以行和列形成，并且进一步形成为为共通道电池扇区提供预定的相对取向图案。共信道小区围绕预选中心同信道小区形成第一小区层，其中共同方向作为参考取向方向作为其中的同信道扇区。围绕第一层的连续共通道单元中的共同通道扇区在交替的第一和第二方向上连续定向，其中扇区从顺时针或逆时针方向上的参考方向旋转了至少一个扇区旋转。

4. 发明授权

US5153541A Folded interdigital notch filter 失效
标题翻译：折叠叉指式陷波滤波器
公开(公告)号：US5153541A
公开(公告)日：1992-10-06
申请号：US703323
申请日：1991-05-20
申请人： Arlen K. Johnson , Peter S. Rha , Gary D. Stuck
发明人： Arlen K. Johnson , Peter S. Rha , Gary D. Stuck
IPC分类号： H01P1/205
CPC分类号： H01P1/205
摘要： An interdigital resonant cavity filter structure is foled to provide two adjacent chambers physically positioned side by side and electrically connected in series with each other. A center plate divides the two chambers with a slot at one end of the structure to permit the two chambers to function as one resonant cavity in a folded relation to each other. Each chamber includes interdigital resonators which are related to the overall resonant cavity to produce a band pass filter action within the folded resonant cavity. The input of the filter structure is applied through a port of a circulator connected to one end of the resonant cavity and the output is taken from another port of the circulator. The opposite end of the resonant cavity is terminated in the characteristic impedance of the resonant cavity thereby causing the overall structure to operate as a high quality notch filter.
摘要翻译：交叉式谐振腔滤波器结构旨在提供两个相邻的物理位置并排并且彼此串联电连接的相邻室。中心板在结构的一端分隔具有狭槽的两个室，以允许两个室作为彼此折叠的一个谐振腔。每个室包括与整个谐振腔相关的叉指式谐振器，以在折叠谐振腔内产生带通滤波器作用。滤波器结构的输入通过连接到谐振腔的一端的环行器的端口施加，并且输出从循环器的另一个端口取出。谐振腔的相对端在谐振腔的特征阻抗中终止，从而使整个结构作为高质量陷波滤波器工作。

5. 发明授权

US07965685B1 Handoff control in an enterprise division multiple access wireless system 有权
标题翻译：企业划分多址无线系统中的切换控制
公开(公告)号：US07965685B1
公开(公告)日：2011-06-21
申请号：US11108260
申请日：2005-04-18
申请人： Ki Hyun Joo , Peter S. Rha , Chol Su Kang , Sang Kyoon Hyun
发明人： Ki Hyun Joo , Peter S. Rha , Chol Su Kang , Sang Kyoon Hyun
IPC分类号： H04W4/00
CPC分类号： H04W4/04 , H04W36/08 , H04W36/38 , H04W64/00
摘要： A wireless office communication system including a wireless internet base station (WIBS) encompassing a base station controller, a mobile switch controller and an ethernet interface module for coupling the WIBS to an existing internet protocol (IP) based network. A wireless office communication system can also be based on the conventional architecture comprising the BTS, BSC and MSC. The WIBS or BTS is attached to a number of antennas via different and identifiable delay elements for the purpose of determining the serving antennas of mobile communication units. A location determination logic enables the system to handle handoffs between a WIBS or BTS and the external public communication system in an optimum manner. Handling handoff requests in this manner prevents unnecessary ping-ponging of handoff and can also increase the percentage of successful handoff by frequency monitoring of the quality of the mobile communication units located in the handoff transition area, particularly to the public communication system.
摘要翻译：一种包括无线因特网基站（WIBS）的无线办公室通信系统，其包括基站控制器，移动交换机控制器和用于将WIBS耦合到基于现有网络协议（IP）的网络的以太网接口模块。无线办公室通信系统也可以基于包括BTS，BSC和MSC的常规架构。为了确定移动通信单元的服务天线，WIBS或BTS通过不同和可识别的延迟元件附接到多个天线。位置确定逻辑使得系统能够以最佳方式处理WIBS或BTS与外部公共通信系统之间的切换。以这种方式处理切换请求防止切换的不必要的乒乓球，并且还可以通过频率监视位于切换过渡区域中的移动通信单元的质量，特别是公共通信系统来提高成功切换的百分比。

6. 发明授权

US6091296A Single loop feedforward amplifier for use in an RF transmitter and method of operation 失效
标题翻译：用于射频发射机的单环前馈放大器及其操作方法
公开(公告)号：US6091296A
公开(公告)日：2000-07-18
申请号：US134194
申请日：1998-08-14
申请人： Peter S. Rha
发明人： Peter S. Rha
IPC分类号： H04B1/04 , H03F1/32
CPC分类号： H03F1/3276 , H03F1/3223 , H03F2201/3212 , Y02B60/50
摘要： There is disclosed, for use in a wireless network, a single-loop feedforward amplification system. The single loop comprises a main amplification branch and a feedforward branch in parallel to the main amplification branch. The main amplification branch contains a delay line that receives and delays the initial low-power input signal, and a power amplifier that amplifies the delayed input signal to produce an amplified output signal. The feedforward branch also receives the input signal and generates an distortion correction signal to compensate for the distortion produced at the output of the power amplifier due to its non-linearity. The distortion correction signal and the distorted amplified output signal are then combined to create a corrected amplified output signal without distortion.
摘要翻译：公开了用于无线网络中的单环前馈放大系统。单个回路包括与主放大支路并联的主放大支路和前馈支路。主放大分支包含延迟线，其接收并延迟初始低功率输入信号，以及放大延迟的输入信号以产生放大的输出信号的功率放大器。前馈分支还接收输入信号并产生失真校正信号以补偿由于其非线性而在功率放大器的输出处产生的失真。然后将失真校正信号和失真的放大输出信号组合以产生没有失真的经校正的放大输出信号。

7. 发明授权

US06901061B1 Handoff control in an enterprise division multiple access wireless system 失效
标题翻译：企业划分多址无线系统中的切换控制
公开(公告)号：US06901061B1
公开(公告)日：2005-05-31
申请号：US09655102
申请日：2000-09-05
申请人： Ki Hyun Joo , Peter S. Rha , Chol Su Kang , Sang Kyoon Hyun
发明人： Ki Hyun Joo , Peter S. Rha , Chol Su Kang , Sang Kyoon Hyun
IPC分类号： H04B7/216
CPC分类号： H04W4/04 , H04W36/08 , H04W36/38 , H04W64/00
摘要： A wireless office communication system including a wireless internet base station (WIBS) encompassing a base station controller, a mobile switch controller and an ethernet interface module for coupling the WIBS to an existing internet protocol (IP) based network. A wireless office communication system can also be based on the conventional architecture comprising the BTS, BSC and MSC. The WIBS or BTS is attached to a number of antennas via different and identifiable delay elements for the purpose of determining the serving antennas of mobile communication units. A location determination logic enables the system to handle handoffs between a WIBS or BTS and the external public communication system in an optimum manner. Handling handoff requests in this manner prevents unnecessary ping-ponging of handoff and can also increase the percentage of successful handoff by frequency monitoring of the quality of the mobile communication units located in the handoff transition area, particularly to the public communication system.
摘要翻译：一种包括无线因特网基站（WIBS）的无线办公室通信系统，其包括基站控制器，移动交换机控制器和用于将WIBS耦合到基于现有网络协议（IP）的网络的以太网接口模块。无线办公室通信系统也可以基于包括BTS，BSC和MSC的常规架构。为了确定移动通信单元的服务天线，WIBS或BTS通过不同和可识别的延迟元件附接到多个天线。位置确定逻辑使得系统能够以最佳方式处理WIBS或BTS与外部公共通信系统之间的切换。以这种方式处理切换请求防止切换的不必要的乒乓球，并且还可以通过频率监视位于切换过渡区域中的移动通信单元的质量，特别是公共通信系统来提高成功切换的百分比。

8. 发明授权

US06411825B1 Distributed architecture for a base station transceiver subsystem 有权
标题翻译：基站收发器子系统的分布式架构
公开(公告)号：US06411825B1
公开(公告)日：2002-06-25
申请号：US09311548
申请日：1999-05-13
申请人： John S. Csapo , Joseph R. Cleveland , Peter S. Rha
发明人： John S. Csapo , Joseph R. Cleveland , Peter S. Rha
IPC分类号： H04Q7155
CPC分类号： H04W88/085
摘要： A telecommunication base station transceiver subsystem that can be easily configured to provide single or multi-carrier frequency service. Capacity is increased and diversity reception is maintained from a single to a dual frequency system without the need for additional antennas. The base station is divided into a main unit and a radio unit such that the radio unit is positioned proximate to the antennas and the main unit is remotely located from the radio unit. Furthermore, a single base station transceiver can provide service via multiple wireless protocols, such as CDMA, TDMA, GSM or Analog. The base station transceiver can also operate on various transmit/receive frequencies as well as variable transmit power settings.
摘要翻译：电信基站收发机子系统可以容易地配置为提供单载波或多载波频率服务。容量增加，分集接收从一个单一系统维持到一个双频系统，而不需要额外的天线。基站被分成主单元和无线单元，使得无线电单元位于天线附近，并且主单元远离无线电单元。此外，单个基站收发机可以经由诸如CDMA，TDMA，GSM或模拟的多种无线协议来提供服务。基站收发器还可以在各种发射/接收频率以及可变发射功率设置上操作。

9. 发明授权

US06188732B1 Digital feedforward amplifier for use in an RF transmitter and method of operation 有权
标题翻译：用于射频发射器的数字前馈放大器和操作方法
公开(公告)号：US06188732B1
公开(公告)日：2001-02-13
申请号：US09174760
申请日：1998-10-19
申请人： Peter S. Rha
发明人： Peter S. Rha
IPC分类号： H04K102
CPC分类号： H03F1/3276 , H03F1/3229 , H03F1/3294 , H03F2201/3206 , H04L27/2623
摘要： A digital feedforward (FF) amplifier system is disclosed for use in an RF transmission system. The digital FF amplifier uses digital signal processing to generate error correction signals that reduce intermodulation distortion caused by saturation of the main power amplifier. The digital signals in the improved FF amplifier may be buffered, if necessary, thereby eliminating the need for delay lines. A main amplification branch includes a digital combiner for summing input digital signals, digital-to-analog converters, RF modulation circuitry and a main power amplifier. An error correction signal branch includes an error correction signal generator, digital-to-analog converters, and RF modulation circuitry. The RF outputs of the main amplification branch and the error correction signal branch are combined to produce an RF output signal with reduced distortion. Optionally, an amplifier characterization branch may be included comprising RF output feedback circuitry and an amplifier model. The amplifier model updates the error correction generator with time varying characteristic information about the main power amplifier.
摘要翻译：公开了用于RF传输系统的数字前馈（FF）放大器系统。数字FF放大器使用数字信号处理来产生减少主功率放大器饱和引起的互调失真的纠错信号。如果需要，改进的FF放大器中的数字信号可以被缓冲，从而不需要延迟线。主放大分支包括用于对输入数字信号求和的数字组合器，数模转换器，RF调制电路和主功率放大器。纠错信号分支包括纠错信号发生器，数 - 模转换器和RF调制电路。主放大分支和纠错信号分支的RF输出被组合以产生具有减小的失真的RF输出信号。可选地，可以包括放大器表征分支，其包括RF输出反馈电路和放大器模型。放大器模型使用主功率放大器的时变特性信息来更新误差校正发生器。

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