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1. 发明授权

US06603958B1 Method and apparatus for a carrier frequency control in a wireless communication system 有权
标题翻译：无线通信系统中载波频率控制的方法和装置
公开(公告)号：US06603958B1
公开(公告)日：2003-08-05
申请号：US09500458
申请日：2000-02-09
申请人： Shiwei Gao , Genzao G. Zhang , Kuang-Tsan Wu
发明人： Shiwei Gao , Genzao G. Zhang , Kuang-Tsan Wu
IPC分类号： H04B110
CPC分类号： H04L27/0014 , H04L2027/002 , H04L2027/0022
摘要： The invention provides a frequency control method and apparatus for efficiently controlling in a wireless system the carrier frequency of a received signal transmitted over a radio link to counteract carrier frequency drifts in the received signal and hence maintain link connectivity. In a preferred embodiment, the invention provides upstream and downstream carrier frequency control in a broadband wireless access (BWA) time division multiplex access (TDMA) system formed of a base transceiver station (BTS) and multiple customer premises equipment (CPE) units. At each of the CPE units, the CPE upstream carrier frequency is preemptively adjusted based on downstream carrier frequency measurements to counteract carrier frequency variations in the upstream carrier frequency. For downstream communications, the BTS periodically polls all active CPE units to obtain downstream frequency offset estimates, calculate a frequency correction offset and adjust the downstream carrier frequency accordingly.
摘要翻译：本发明提供了一种频率控制方法和装置，用于在无线系统中有效地控制通过无线电链路发射的接收信号的载波频率，以抵消载波频率在接收信号中漂移，从而保持链路连通性。在优选实施例中，本发明在由基站（BTS）和多个客户驻地设备（CPE）单元形成的宽带无线接入（BWA）时分复用接入（TDMA）系统中提供上行和下行载波频率控制。在每个CPE单元中，CPE上行载波频率基于下行载波频率测量进行抢占式调整，以抵消上行载波频率中的载波频率变化。对于下游通信，BTS周期性地轮询所有活动CPE单元以获得下行频率偏移估计，计算频率校正偏移并相应地调整下行载波频率。

2. 发明授权

US06519449B1 Method and apparatus for a signal power control in a wireless communication system 有权
标题翻译：无线通信系统中信号功率控制的方法和装置
公开(公告)号：US06519449B1
公开(公告)日：2003-02-11
申请号：US09428988
申请日：1999-10-29
申请人： Genzao G. Zhang , Kuang-Tsan Wu , Jiandong Zhuang , Pei Hou , Shiwei Gao , Harvey H. Lee
发明人： Genzao G. Zhang , Kuang-Tsan Wu , Jiandong Zhuang , Pei Hou , Shiwei Gao , Harvey H. Lee
IPC分类号： H04B100
CPC分类号： H04W52/367 , H04W24/00 , H04W28/18 , H04W48/08 , H04W52/08 , H04W52/16 , H04W52/225
摘要： The invention provides a signal power control method and apparatus for a wireless system to control the power level of a received signal transmitted over a radio link so as to counteract transmission impairments caused by environment variations and maintain the reliability of the radio link. The signal power control of this invention serves to control the transmit power used for transmission and adjust the position of the receiver dynamic range so that the received signal can always be optimally received. In a preferred embodiment, the invention is incorporated in a broadband wireless access (BWA) time division multiplex access (TDMA) system to maintain the reliability of an upstream radio link connecting a base transceiver station (BTS) with multiple customer premises equipment (CPE) units. In the preferred embodiment, power control messages are exchanged between the BTS and the CPE units based on the international telecommunications union (ITU) R112 local multipoint distribution service (LMSD) standard for effecting the signal power control of the present invention.
摘要翻译：本发明提供了一种用于无线系统的信号功率控制方法和装置，用于控制通过无线电链路传输的接收信号的功率电平，以抵消由环境变化引起的传输损伤并保持无线电链路的可靠性。本发明的信号功率控制用于控制用于传输的发射功率，并调整接收机动态范围的位置，使得接收到的信号总能被最佳地接收。在优选实施例中，本发明被并入宽带无线接入（BWA）时分复用接入（TDMA）系统中，以维持将基站收发台（BTS）与多个客户驻地设备（CPE）连接的上游无线电链路的可靠性，单位。在优选实施例中，基于用于实现本发明的信号功率控制的国际电信联盟（ITU）R112本地多点分配服务（LMSD）标准，在BTS和CPE单元之间交换功率控制消息。

3. 发明授权

US09107173B2 Method and system for access and uplink power control for a wireless system having multiple transmit points 有权
标题翻译：用于具有多个发射点的无线系统的接入和上行链路功率控制的方法和系统
公开(公告)号：US09107173B2
公开(公告)日：2015-08-11
申请号：US13208659
申请日：2011-08-12
申请人： Shiwei Gao , Hua Xu , Shiguang Guo , Dongsheng Yu , Yongkang Jia , Masoud Ebrahimi Tazeh Mahalleh , Tarik Tabet , Youn Hyoung Heo , Zhijun Cai
发明人： Shiwei Gao , Hua Xu , Shiguang Guo , Dongsheng Yu , Yongkang Jia , Masoud Ebrahimi Tazeh Mahalleh , Tarik Tabet , Youn Hyoung Heo , Zhijun Cai
IPC分类号： H04W52/24 , H04W74/08 , H04W74/00 , H04W48/20 , H04W52/14 , H04W84/04 , H04W52/50 , H04W52/40
CPC分类号： H04W52/244 , H04W48/20 , H04W52/146 , H04W52/242 , H04W52/40 , H04W52/50 , H04W74/004 , H04W74/0833 , H04W84/045
摘要： A method and system for access and uplink power control for a wireless system having multiple transmit points. In one aspect a method operating in a wireless network having a plurality of transmission points (TP) including a macro evolved Node B (eNB) and at least one low power node (LPN) having transmit power lower than that of the macro eNB, the method detecting, by the user equipment, a transmission point having a lowest path loss to the user equipment; and transmitting, by the user equipment, a physical random access channel (PRACH) preamble on a PRACH directed to the transmission points having the lowest path losses.
摘要翻译：一种用于具有多个发射点的无线系统的接入和上行链路功率控制的方法和系统。在一个方面，一种在具有包括宏演进节点B（eNB）和发射功率低于宏eNB的发射功率的至少一个低功率节点（LPN）的多个传输点（TP）的无线网络中运行的方法，由所述用户设备向所述用户设备检测具有最低路径损耗的传输点; 并且由用户设备在针对具有最低路径损耗的传输点的PRACH上发送物理随机接入信道（PRACH）前导码。

4. 发明授权

US09025574B2 Methods of channel state information feedback and transmission in coordinated multi-point wireless communications system 有权
标题翻译：协调多点无线通信系统中信道状态信息反馈和传输方法
公开(公告)号：US09025574B2
公开(公告)日：2015-05-05
申请号：US13545632
申请日：2012-07-10
申请人： Masoud Ebrahimi Tazeh Mahalleh , Shiwei Gao , Yongkang Jia , Tarik Tabet , Hua Xu
发明人： Masoud Ebrahimi Tazeh Mahalleh , Shiwei Gao , Yongkang Jia , Tarik Tabet , Hua Xu
IPC分类号： H04W72/04 , H04J3/00 , H04W4/00 , H04B7/02 , H04L1/00 , H04L5/00 , H04L25/03 , H04L1/06 , H04B7/06
CPC分类号： H04B7/024 , H04B7/063 , H04B7/0632 , H04B7/0639 , H04B7/0669 , H04L1/0013 , H04L1/0031 , H04L1/0668 , H04L5/0035 , H04L5/0048 , H04L5/0057 , H04L5/0091 , H04L25/03955 , H04W4/00
摘要： An apparatus and method for feedback solutions that function in conjunction with CoMP transmissions. The feedback solutions are applicable to joint transmission (JT) as well as coordinated scheduling (CS) and coordinated beamforming (CB). Embodiments of the present disclosure are described herein in the context of a wireless network in compliance with LTE standards.
摘要翻译：用于与CoMP传输相结合的反馈解决方案的装置和方法。反馈解决方案适用于联合传输（JT）以及协调调度（CS）和协调波束成形（CB）。本公开的实施例在符合LTE标准的无线网络的上下文中被描述。

5. 发明申请

US20130114517A1 Inter-Cell Interference Coordination for E-PDCCH 有权
标题翻译： E-PDCCH的小区间干扰协调
公开(公告)号：US20130114517A1
公开(公告)日：2013-05-09
申请号：US13289812
申请日：2011-11-04
申请人： Yufei Wu Blankenship , Shiwei Gao , Hua Xu
发明人： Yufei Wu Blankenship , Shiwei Gao , Hua Xu
IPC分类号： H04W72/04 , H04W74/04
CPC分类号： H04L5/0053 , H04L5/0023 , H04L5/0073 , H04L5/0094 , H04W92/20
摘要： A method is provided for communication in a wireless telecommunication system. The method comprises transmitting, by a first access node, an indicator to a second access node over an interface between the first access node and the second access node, wherein the indicator provides information on a transmission of a control channel by the first access node.
摘要翻译：提供了一种用于无线电信系统中的通信的方法。该方法包括由第一接入节点通过第一接入节点和第二接入节点之间的接口向第二接入节点发送指示符，其中指示符提供由第一接入节点发送控制信道的信息。

6. 发明申请

US20130064215A1 Enhanced PDCCH with Transmit Diversity in LTE Systems 有权
标题翻译： LTE系统中具有发射分集的增强型PDCCH
公开(公告)号：US20130064215A1
公开(公告)日：2013-03-14
申请号：US13610396
申请日：2012-09-11
申请人： Shiwei Gao , Hua Xu , Yongkang Jia , Amin Mobasher
发明人： Shiwei Gao , Hua Xu , Yongkang Jia , Amin Mobasher
IPC分类号： H04W72/04
CPC分类号： H04W72/04 , H04B7/024 , H04B7/0417 , H04B7/0606 , H04L1/1861 , H04L5/0016 , H04L5/0023 , H04L5/0026 , H04L5/0035 , H04L5/0048 , H04L5/0051 , H04L5/0053 , H04L5/0055 , H04L5/0094 , H04W16/10 , H04W48/12 , H04W72/12
摘要： A method is provided for communication in a wireless telecommunications network. The method comprises transmitting an extended physical downlink control channel to a user equipment using transmit diversity from at least one demodulation reference signal port.
摘要翻译：提供了一种用于在无线电信网络中进行通信的方法。该方法包括使用来自至少一个解调参考信号端口的发射分集向用户设备发送扩展物理下行链路控制信道。

7. 发明申请

US20130064196A1 Searching Space and Operation for Enhanced PDCCH in LTE Systems 有权
标题翻译：搜索空间和LTE系统中增强型PDCCH的操作
公开(公告)号：US20130064196A1
公开(公告)日：2013-03-14
申请号：US13610434
申请日：2012-09-11
申请人： Shiwei Gao , Hua Xu , Yongkang Jia , Amin Mobasher
发明人： Shiwei Gao , Hua Xu , Yongkang Jia , Amin Mobasher
IPC分类号： H04W72/04
CPC分类号： H04W72/04 , H04B7/024 , H04B7/0417 , H04B7/0606 , H04L1/1861 , H04L5/0016 , H04L5/0023 , H04L5/0026 , H04L5/0035 , H04L5/0048 , H04L5/0051 , H04L5/0053 , H04L5/0055 , H04L5/0094 , H04W16/10 , H04W48/12 , H04W72/12
摘要： A method is provided for operating an eNB in a wireless communication network. The method comprises allocating, by the eNB, one or more resource units within one or more physical resource block pairs to a user equipment for transmitting enhanced control information.
摘要翻译：提供了一种在无线通信网络中操作eNB的方法。该方法包括由eNB将一个或多个物理资源块对内的一个或多个资源单元分配给用于发送增强控制信息的用户设备。

8. 发明申请

US20130003604A1 Method and Apparatus for Enhancing Downlink Control Information Transmission 审中-公开
标题翻译：用于增强下行链路控制信息传输的方法和装置
公开(公告)号：US20130003604A1
公开(公告)日：2013-01-03
申请号：US13174342
申请日：2011-06-30
申请人： Yufei Wu Blankenship , Michael Eoin Buckley , Zhijun Cai , Hua Xu , Sophie Vrzic , Shiwei Gao , Youn Hyoung Heo
发明人： Yufei Wu Blankenship , Michael Eoin Buckley , Zhijun Cai , Hua Xu , Sophie Vrzic , Shiwei Gao , Youn Hyoung Heo
IPC分类号： H04W72/04 , H04W16/06
CPC分类号： H04L5/0053 , H04L5/0023
摘要： A method is provided for transmitting an extended physical downlink control channel (E-PDCCH). The method comprises transmitting control information in at least one time-frequency resource unit that would otherwise be used to carry a physical downlink shared channel (PDSCH). The E-PDCCH and at least one PDSCH are multiplexed in a transmission time interval. A first set of configuration of the E-PDCCH is semi-statically signaled and a second set of configuration of the E-PDCCH is dynamically signaled.
摘要翻译：提供一种用于发送扩展物理下行链路控制信道（E-PDCCH）的方法。该方法包括在否则将用于携带物理下行链路共享信道（PDSCH）的至少一个时间 - 频率资源单元中发送控制信息。 E-PDCCH和至少一个PDSCH在传输时间间隔中被复用。 E-PDCCH的第一组配置被半静态信号发送，并且动态地发送E-PDCCH的第二组配置。

9. 发明授权

US07756227B2 Method and apparatus for adaptive beamforming in an antenna array system for wireless communications 有权
标题翻译：用于无线通信的天线阵列系统中的自适应波束成形的方法和装置
公开(公告)号：US07756227B2
公开(公告)日：2010-07-13
申请号：US11784090
申请日：2007-04-04
申请人： Shiwei Gao , Hafedh Trigui
发明人： Shiwei Gao , Hafedh Trigui
IPC分类号： H04B7/10
CPC分类号： H01Q3/2605 , H04B7/086
摘要： A novel system for performing adaptive beamforming in a slow frequency hopping environment is disclosed. The presence of slow frequency hopping means that conventional mechanisms of using beamforming weights from previous time slots are inapplicable. The inventive system calculates a series of beamforming weights from an estimate of the spatial location of the mobile subscriber in the previous frame, which is impervious to slow frequency hopping and the data that precedes the training sequence data of the current frame. The beamforming weights and the spatial location of the mobile are updated with the arrival of the entirety of the current frame. The initial beamforming weight estimate is sufficient to permit processing on a real-time basis of the current frame even if the inventive system is implemented as an appliqué system interposed between the antenna array and a conventional base station.
摘要翻译：公开了一种用于在慢跳频环境中执行自适应波束成形的新颖系统。慢跳频的存在意味着使用来自前一时隙的波束成形权重的常规机制是不适用的。本发明的系统从先前帧中的移动用户的空间位置的估计中计算出一系列波束形成权重，其不可避免慢跳频和在当前帧的训练序列数据之前的数据。随着当前帧的整体的到达，波束成形权重和移动台的空间位置被更新。即使本发明的系统被实现为插入在天线阵列和常规基站之间的贴布系统，初始波束形成权重估计足以允许基于当前帧的实时处理。

10. 发明申请

US20070285312A1 Adaptive multi-beam system 审中-公开
标题翻译：自适应多光束系统
公开(公告)号：US20070285312A1
公开(公告)日：2007-12-13
申请号：US11784485
申请日：2007-04-06
申请人： Shiwei Gao , Hafedh Trigui
发明人： Shiwei Gao , Hafedh Trigui
IPC分类号： H04B7/26
CPC分类号： H01Q3/24 , H01Q1/246 , H01Q3/40 , H04B7/0617 , H04B7/0857
摘要： A system and method of providing an adaptive multi-beam capability to a wireless base transceiver station is disclosed. The system comprises a plurality of transmit and receive antenna arrays and a plurality of static beamformers to form a limited number of beams. The beam data is reduced to digital baseband form whereupon it is digitally beamformed using a set of adaptive beamforming weights generated having regard to the form and content of the data and the environment. Such form and content information is obtained directly or indirectly from the base transceiver station. The weights are calculated using an average power function derived from a correlation of the beam data with a reference signal that mimics the training sequence assigned to the base transceiver station. Because the average power does not vary widely from frame to frame, the weights derived from the uplink direction may be reapplied in the downlink direction. Specific provision is made for data packets, where downlink packets may contain control information intended for broadcast to all subscribers.
摘要翻译：公开了一种向无线基站收发台提供自适应多波束能力的系统和方法。该系统包括多个发射和接收天线阵列和多个静态波束形成器以形成有限数量的波束。波束数据被减少到数字基带形式，因此使用在考虑了数据和环境的形式和内容的情况下产生的一组自适应波束赋形权重进行数字波束形成。这种形式和内容信息直接或间接从基地收发台获得。使用从波束数据与模拟分配给基站的训练序列的参考信号的相关性导出的平均功率函数来计算加权。因为平均功率在帧之间不会很大地变化，所以从上行链路方向导出的权重可以在下行链路方向重新应用。具体规定了数据包，其中下行链路分组可以包含旨在广播给所有订户的控制信息。

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