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1. 发明授权

US08289863B2 Method and apparatus for closed loop transmission 有权
标题翻译：闭环传动的方法和装置
公开(公告)号：US08289863B2
公开(公告)日：2012-10-16
申请号：US12169783
申请日：2008-07-09
申请人： Frederick W. Vook , Xiangyang Zhuang , Kevin L. Baum , Timothy A. Thomas
发明人： Frederick W. Vook , Xiangyang Zhuang , Kevin L. Baum , Timothy A. Thomas
IPC分类号： H04W4/00 , H04L12/26
CPC分类号： H04L5/0094 , H04L5/0023 , H04L5/0026 , H04L5/0051 , H04L25/0226 , H04L25/03343 , H04L27/2613 , H04L2025/03414 , H04L2025/03426 , H04L2025/03796 , H04L2025/03815 , H04W72/04
摘要： In a wireless communication system, a method and apparatus for closed loop transmission is disclosed. In accordance with the preferred embodiment of the present invention, a time frequency portion of an uplink frame is dynamically reserved as a sounding zone for uplink channel sounding. A first message is transmitted to a first subscriber station in a downlink frame assigning a time-frequency resource within the sounding zone, and a sounding waveform. Furthermore, a signal is received from the subscriber station within the assigned time-frequency resource, a partial channel response is determined from the received sounding signal, and the subsequent transmission to the subscriber station is tailored based on the at least partial channel response.
摘要翻译：在无线通信系统中，公开了一种用于闭环传输的方法和装置。根据本发明的优选实施例，上行链路帧的时间频率部分被动态地保留作为用于上行链路信道探测的探测区域。在下行链路帧中向第一用户台发送第一消息，分配探测区域内的时间 - 频率资源和发声波形。此外，在所分配的时间 - 频率资源内从用户站接收信号，从接收到的探测信号确定部分信道响应，并且基于至少部分信道响应来定制对用户站的后续传输。

2. 发明申请

US20120243501A1 Method and Apparatus for Closed Loop Transmission 有权
标题翻译：闭环传动方法与装置
公开(公告)号：US20120243501A1
公开(公告)日：2012-09-27
申请号：US13486144
申请日：2012-06-01
申请人： Frederick W. Vook , Xiangyang Zhuang , Kevin L. Baum , Timothy A. Thomas
发明人： Frederick W. Vook , Xiangyang Zhuang , Kevin L. Baum , Timothy A. Thomas
IPC分类号： H04W72/04
CPC分类号： H04L5/0094 , H04L5/0023 , H04L5/0026 , H04L5/0051 , H04L25/0226 , H04L25/03343 , H04L27/2613 , H04L2025/03414 , H04L2025/03426 , H04L2025/03796 , H04L2025/03815 , H04W72/04
摘要： In a wireless communication system, a method and apparatus for closed loop transmission is disclosed. In accordance with the preferred embodiment of the present invention, a time frequency portion of an uplink frame is dynamically reserved as a sounding zone for uplink channel sounding. A first message is transmitted to a first subscriber station in a downlink frame assigning a time-frequency resource within the sounding zone, and a sounding waveform. Furthermore, a signal is received from the subscriber station within the assigned time-frequency resource, a partial channel response is determined from the received sounding signal, and the subsequent transmission to the subscriber station is tailored based on the at least partial channel response.
摘要翻译：在无线通信系统中，公开了一种用于闭环传输的方法和装置。根据本发明的优选实施例，上行链路帧的时间频率部分被动态地保留作为用于上行链路信道探测的探测区域。在下行链路帧中向第一用户台发送第一消息，分配探测区域内的时间 - 频率资源和发声波形。此外，在所分配的时间 - 频率资源内从用户站接收信号，从接收到的探测信号确定部分信道响应，并且基于至少部分信道响应来定制对用户站的后续传输。

3. 发明授权

US08046022B2 Signal transmission parameter control using channel sounding 失效
标题翻译：信号传输参数控制采用声道探测
公开(公告)号：US08046022B2
公开(公告)日：2011-10-25
申请号：US12169537
申请日：2008-07-08
申请人： Ron Porat
发明人： Ron Porat
IPC分类号： H04B1/00 , H04B7/00 , H04B17/00
CPC分类号： H04W88/08 , H04L5/0007 , H04L5/0051 , H04L25/0228 , H04L25/03343 , H04L27/2662 , H04L2025/03815 , H04W52/241
摘要： A base station (BTS) may instruct a client station (CS) to transmit sounding signals that the BTS may analyze to determine what adjustments, such as power, time, and/or frequency adjustment(s) should be made by the CS. The BTS may control when and how the sounding signals are sent by the CS. This helps reduce the possibility of adjustment signals transmitted by two or more CSs colliding. Thus, sounding signals transmitted by the CS in response to a request by the BTS can be received by the BTS with higher a probability of success. This permits the BTS to more accurately characterize the channel and to provide better adjustment of power level, frequency offset, and/or timing offset for more optimal communication. Such techniques can be used to reduce bit error rates and to improve the overall signal to noise ratio encountered by the system.
摘要翻译：基站（BTS）可以指示客户站（CS）发送BTS可以分析的探测信号，以确定CS应该进行哪些调整，诸如功率，时间和/或频率调整。 BTS可以控制CS的发送信号的时间和方式。这有助于减少由两个或多个CS发生的调整信号的碰撞的可能性。因此，响应于BTS的请求，由CS发送的探测信号可以由BTS以更高的成功概率接收。这允许BTS更准确地表征信道，并且为了更优化的通信而提供功率电平，频率偏移和/或定时偏移的更好的调整。这样的技术可以用于降低误码率并提高系统遇到的整体信噪比。

4. 发明授权

US07664171B2 Uplink burst equalizing method in broad wide access system 有权
标题翻译：上行突发均衡方法在宽广接入系统中
公开(公告)号：US07664171B2
公开(公告)日：2010-02-16
申请号：US10583813
申请日：2003-12-26
申请人： Changyin Sun , Yunfeng Wang
发明人： Changyin Sun , Yunfeng Wang
IPC分类号： H03H7/30
CPC分类号： H04L25/03057 , H04L2025/0349 , H04L2025/037 , H04L2025/03732 , H04L2025/03815
摘要： A method for uplink burst equalization in broad wide access system, using the form of combining pre-training and burst equalization, that is, before transmitting user data, training the equalizer, then starting transmitting user data, in which, the equalizer uses decision user data as reference to track the changed wireless channel; if the change of channel exceeds the tracking region of equalizer, for example, the error rate exceeds threshold 1 but doesn't exceed threshold 2, the burst equalization will be performed; if the channel change exceeds the equalization region of equalizer, for example, the error rate exceeds threshold 2, the training will be performed again. By using the form of combining pre-training and burst equalization, setting different thresholds for handoff, the present invention greatly prolongs the intervals of subsequent pre-training process, thereby reducing the times of pre-training and increasing the effective bandwidth; By introducing burst equalization process, the present invention also decreases the requirement of system on operation occasion (for example, the static channel or the interval of bursts should be short), thereby increasing the application occasions of product.
摘要翻译：一种广域接入系统中上行链路突发均衡的方法，采用组合预训练和突发均衡的方式，即在发送用户数据之前，训练均衡器，然后开始发送用户数据，其中均衡器使用决策用户数据作为跟踪改变的无线信道的参考; 如果信道的改变超过均衡器的跟踪区域，例如，错误率超过阈值1但不超过阈值2，将执行突发均衡; 如果信道改变超过均衡器的均衡区域，则例如，错误率超过阈值2，则将再次执行训练。通过使用组合预训练和突发均衡的形式，设置切换的不同阈值，本发明大大延长了后续训练过程的间隔，从而减少了训练前的时间并增加了有效带宽; 通过引入突发均衡处理，本发明还降低了系统在操作场合的要求（例如，静态信道或突发间隔应该较短），从而增加了产品的应用场合。

5. 发明授权

US09806784B2 Sub-band feedback for beamforming on downlink multiple user MIMO configurations 有权
公开(公告)号：US09806784B2
公开(公告)日：2017-10-31
申请号：US15008618
申请日：2016-01-28
申请人： MARVELL WORLD TRADE LTD.
发明人： Hongyuan Zhang
IPC分类号： H04L1/00 , H04B7/06 , H04L25/03 , H04B7/0452 , H04W24/10
CPC分类号： H04B7/0619 , H04B7/0452 , H04B7/0617 , H04L25/03343 , H04L25/0398 , H04L2025/03808 , H04L2025/03815 , H04W24/10
摘要： A method in a communication network includes an access point, using a multiple input multiple output antenna configuration, sending out a sounding packet to a plurality of client stations. The client stations determine a channel estimation of the sounding packet, but only a channel estimation of a portion of the entire sounding packet to avoid processing the entire packet. The resulting partial estimation is sent to the access point for using in transmit beamforming. In other examples, the client station sends a reverse link sounding packet over a portion a channel having a bandwidth less than the sounding packet, and from this the access point determines partial channel estimations and transmit beamforming conditions.

6. 发明申请

US20170170993A1 Training assisted joint equalization 审中-公开
公开(公告)号：US20170170993A1
公开(公告)日：2017-06-15
申请号：US15530179
申请日：2016-12-08
申请人： ZTE Corporation
发明人： Zhensheng Jia , Hung-Chang Chien , Jianjun Yu
IPC分类号： H04L25/03
CPC分类号： H04L25/03006 , H04L25/03343 , H04L2025/03815
摘要： Throughput between a transmitter and a receiver is increased by performing a three-stage joint channel optimization in which training sequences are used for calculating a pre-equalization estimate in the first stage, a look up table for pre-distortion in the second stage and a further updating the pre-equalization estimate and the look up table based on a third stage in which the training sequence used for the updating is pre-equalized and pre-distorted using previously calculated values prior to transmitting from the transmitter to the receiver.

7. 发明申请

US20160380799A1 METHOD AND APPARATUS FOR TUNING FINITE IMPULSE RESPONSE FILTER IN IN-BAND FULL DUPLEX TRANSCEIVER 审中-公开
标题翻译：用于调谐带内全双工收发器的有限冲击响应滤波器的方法和装置
公开(公告)号：US20160380799A1
公开(公告)日：2016-12-29
申请号：US15187927
申请日：2016-06-21
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Kapseok CHANG , Hyung Sik JU
IPC分类号： H04L27/26 , H04L5/14 , H04L12/26
CPC分类号： H04L5/14 , H03H15/023 , H03H2015/007 , H04B1/123 , H04B1/525 , H04J11/004 , H04L5/1461 , H04L27/265 , H04L2025/03815
摘要： A method and an apparatus for tuning an FIR filter in an in-band full duplex transceiver. The method for tuning an FIR filter may include: setting attenuation of the FIR filter to be a first value and then estimating input information of the FIR filter; estimating a delta response using the estimated input information of the FIR filter; and updating the attenuation of the FIR filter to a second value using the estimated delta response.
摘要翻译：一种用于调谐带内全双工收发器中的FIR滤波器的方法和装置。用于调整FIR滤波器的方法可以包括：将FIR滤波器的衰减设置为第一值，然后估计FIR滤波器的输入信息; 使用FIR滤波器的估计输入信息来估计Δ响应; 以及使用估计的δ响应将FIR滤波器的衰减更新为第二值。

8. 发明授权

US09252991B2 Sub-band feedback for beamforming on downlink multiple user MIMO configurations 有权
标题翻译：用于下行链路多用户MIMO配置的波束成形的子带反馈
公开(公告)号：US09252991B2
公开(公告)日：2016-02-02
申请号：US13205257
申请日：2011-08-08
申请人： Hongyuan Zhang
发明人： Hongyuan Zhang
IPC分类号： H04L1/00 , H04L25/03 , H04W24/10
CPC分类号： H04B7/0619 , H04B7/0452 , H04B7/0617 , H04L25/03343 , H04L25/0398 , H04L2025/03808 , H04L2025/03815 , H04W24/10
摘要： A method in a communication network includes an access point, using a multiple input multiple output antenna configuration, sending out a sounding packet to a plurality of client stations. The client stations determine a channel estimation of the sounding packet, but only a channel estimation of a portion of the entire sounding packet to avoid processing the entire packet. The resulting partial estimation is sent to the access point for using in transmit beamforming. In other examples, the client station sends a reverse link sounding packet over a portion a channel having a bandwidth less than the sounding packet, and from this the access point determines partial channel estimations and transmit beamforming conditions.
摘要翻译：通信网络中的一种方法包括使用多输入多输出天线配置的接入点，向多个客户站发送探测分组。客户站确定探测分组的信道估计，而仅确定整个探测分组的一部分的信道估计，以避免处理整个分组。所得到的部分估计被发送到接入点以用于发射波束形成。在其他示例中，客户站在具有小于探测分组的带宽的信道的一部分上发送反向链路探测分组，并且从该接入点确定部分信道估计并发送波束成形条件。

9. 发明授权

US09094180B2 Channel-adaptive transmission in a distributed coordinated multi-point transmission system 有权
标题翻译：分布式协调多点传输系统中的信道自适应传输
公开(公告)号：US09094180B2
公开(公告)日：2015-07-28
申请号：US13391769
申请日：2009-08-24
申请人： Wolfgang Zirwas , Lars Thiele , Thomas Wirth , Thomas Haustein , Malte Schellmann , Volker Jungnickel
发明人： Wolfgang Zirwas , Lars Thiele , Thomas Wirth , Thomas Haustein , Malte Schellmann , Volker Jungnickel
IPC分类号： H04W4/00 , H04L5/00 , H04L25/03
CPC分类号： H04L5/0091 , H04L5/0073 , H04L25/03343 , H04L2025/03414 , H04L2025/03815
摘要： A user equipment obtains channel state information for base stations serving the user equipment according to a coordinated multi-point transmission, arranges the channel state information in a predetermined order, and transmits the channel state information in the predetermined order. At least one base station of the base stations receives the channel state information, arranges the channel state information in the predetermined order into a datagram, and transmits the datagram to at least one other base station of the base stations.
摘要翻译：用户设备根据协调的多点传输获得为用户设备服务的基站的信道状态信息，以预定顺序排列信道状态信息，并以预定顺序发送信道状态信息。基站的至少一个基站接收信道状态信息，按照预定顺序将信道状态信息排列成数据报，并将数据报发送到基站的至少一个其他基站。

10. 发明申请

US20120009880A1 DEVICE, SYSTEM AND METHOD OF WIRELESS COMMUNICATION OVER A BEAMFORMED COMMUNICATION LINK 有权
标题翻译：无线通信的设备，系统和方法通过一个BEAMFORM通信链路
公开(公告)号：US20120009880A1
公开(公告)日：2012-01-12
申请号：US12941108
申请日：2010-11-08
申请人： Solomon Trainin , Assaf Kasher , Carlos Cordeiro
发明人： Solomon Trainin , Assaf Kasher , Carlos Cordeiro
IPC分类号： H04B17/00
CPC分类号： H04B7/26 , H04B7/0617 , H04L1/0083 , H04L1/1829 , H04L1/20 , H04L2025/03426 , H04L2025/03783 , H04L2025/03815 , H04W16/28 , H04W24/00 , H04W76/14 , H04W84/18 , H04W84/20
摘要： Some demonstrative embodiments include devices, systems and/or methods of wireless communication over a beamformed communication link. For example, a device may include a wireless communication unit to establish at least one beamformed communication link for communication with at least one other wireless communication device, wherein the wireless communication unit is to measure a link maintenance time period corresponding to the beamformed communication link, and wherein the wireless communication unit is to attempt to restore the beamformed communication link upon expiration of the link maintenance time period. Other embodiments are described and claimed.
摘要翻译：一些演示实施例包括在波束形成的通信链路上的无线通信的设备，系统和/或方法。例如，设备可以包括无线通信单元，以建立用于与至少一个其他无线通信设备通信的至少一个波束形成的通信链路，其中无线通信单元要测量对应于波束形成的通信链路的链路维护时间段，并且其中所述无线通信单元在所述链路维护时间段期满时尝试恢复所述波束形成的通信链路。描述和要求保护其他实施例。

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