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1. 发明申请

US20150139001A1 METHOD AND APPARATUS FOR BEAM IDENTIFICATION IN MULTI-ANTENNA SYSTEMS 审中-公开
标题翻译：多天线系统中光束识别的方法与装置
公开(公告)号：US20150139001A1
公开(公告)日：2015-05-21
申请号：US14368206
申请日：2013-11-20
申请人： Feng Xue , Qinghua Li , Yuan Zhu
发明人： Feng Xue , Qinghua Li , Yuan Zhu
IPC分类号： H04L5/00 , H04W24/08 , H04W72/04
CPC分类号： H04W72/046 , H04B7/0695 , H04B7/088 , H04L5/0048 , H04L5/0053 , H04W88/02 , H04W88/08
摘要： Embodiments allow a station to determine which of a plurality of spatial beams is best suited for communicating with user equipment (UE). Some embodiments overlay spatial multiplexing in a way that provides support for UE without changing existing signaling schemes. In these embodiments, different messages, each designed to provoke different behavior in the UE, are transmitted on different spatial beams. The station then observes the behavior to determine which beam is most suited for the UE. Other embodiments design new signaling schemes to effectively allow UE supporting the schemes to identify which beam is most suited for communication. A single reference signal is scrambled with one of a plurality of indexing sequences, and each is transmitted on a different spatial beam. The UE performs a channel quality estimate for each scrambled signal and determines the index best suited for communication. The index may then be transmitted to the station.
摘要翻译：实施例允许站确定多个空间波束中的哪一个最适合于与用户设备（UE）通信。一些实施例以提供对UE的支持而不改变现有信令方案的方式覆盖空间复用。在这些实施例中，在不同的空间波束上传送各自被设计成在UE中引起不同行为的不同消息。然后，该站观察行为以确定哪个波束最适合于UE。其他实施例设计新的信令方案以有效地允许UE支持该方案来识别最适合于通信的哪个波束。单个参考信号用多个索引序列之一加扰，并且每个参考信号在不同的空间波束上传输。 UE对每个加扰信号执行信道质量估计，并确定最适合通信的索引。然后可以将索引发送到站。

2. 发明申请

US20150029875A1 DOWNTILT SELECTION IN A FULL DIMENSIONAL MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEM 有权
标题翻译：全尺寸多输入多输出系统中的停机选择
公开(公告)号：US20150029875A1
公开(公告)日：2015-01-29
申请号：US14231158
申请日：2014-03-31
申请人： Yuan Zhu , Qinghua Li , Xiaogang Chen , Feng Xue , Hooman Shirani-Mehr
发明人： Yuan Zhu , Qinghua Li , Xiaogang Chen , Feng Xue , Hooman Shirani-Mehr
IPC分类号： H04W24/08 , H04W72/08
CPC分类号： H04W72/082 , H01Q1/243 , H01Q3/00 , H04B7/0632 , H04B7/0686 , H04B7/0695 , H04B17/318 , H04J11/0023 , H04L5/0007 , H04L5/0094 , H04L5/14 , H04L69/16 , H04W4/70 , H04W16/28 , H04W24/02 , H04W24/08 , H04W24/10 , H04W28/12 , H04W36/0066 , H04W36/0072 , H04W36/0083 , H04W36/30 , H04W52/0209 , H04W72/0413 , H04W72/042 , H04W72/0446 , H04W74/0833 , H04W76/10 , H04W76/11 , H04W76/14 , H04W76/27 , H04W84/045 , H04W84/12 , H04W84/18 , H04W88/06 , H04W88/08 , Y02D70/00 , Y02D70/1224 , Y02D70/1226 , Y02D70/1242 , Y02D70/1244 , Y02D70/1246 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/162 , Y02D70/164 , Y02D70/166 , Y02D70/168 , Y02D70/21 , Y02D70/22 , Y02D70/23 , Y02D70/24 , Y02D70/25 , Y02D70/444
摘要： A technology for an enhanced node B (eNode B) in a cellular network that is operable to determine downtilt using full dimensional (FD) multiple-input multiple-output (MIMO). A plurality of orthogonal frequency division multiple access (OFDMA) signals can be transmitted, wherein each transmitted OFDMA signal is transmitted with a selected downtilt angle from a two dimensional antenna array of the eNode B. Reference signal received power (RSRP) feedback information can be received from a UE for each of transmitted OFDMA signals at the selected downtilt angles. Received signal strength indicator (RSSI) feedback information can be received from the UE. A reference signal received quality (RSRQ) can be calculated for each of the selected antennas angles using the RSRP feedback information and the RSSI feedback information. A downtilt angle can be selected for transmitting data from the eNode B with a highest signal to interference plus noise ratio (SINR).
摘要翻译：蜂窝网络中用于增强节点B（eNode B）的技术，其可操作以使用全维（FD）多输入多输出（MIMO）来确定下倾斜。可以发送多个正交频分多址（OFDMA）信号，其中每个发送的OFDMA信号以来自eNode B的二维天线阵列的选定的下倾斜角发送。参考信号接收功率（RSRP）反馈信息可以是在所选择的下倾角处从UE发送的每个发送的OFDMA信号。可以从UE接收到接收信号强度指示符（RSSI）反馈信息。可以使用RSRP反馈信息和RSSI反馈信息为每个所选择的天线角度计算参考信号接收质量（RSRQ）。可以选择下倾角，以便从具有最高信号到干扰加噪声比（SINR）的eNode B传输数据。

3. 发明申请

US20150003338A1 METHOD FOR EFFICIENT CHANNEL ESTIMATION AND BEAMFORMING IN FDD SYSTEM BY EXPLOITING UPLINK-DOWNLINK CORRESPONDENCE 有权
标题翻译： FDD系统中有效通道估计和射束的方法，通过开发上下文相关性
公开(公告)号：US20150003338A1
公开(公告)日：2015-01-01
申请号：US14109211
申请日：2013-12-17
申请人： Feng Xue , Qinghua Li , Yuan Zhu
发明人： Feng Xue , Qinghua Li , Yuan Zhu
IPC分类号： H04W72/02
CPC分类号： H04W72/0446 , H04B7/024 , H04B7/0452 , H04B7/0626 , H04J11/005 , H04L5/1469 , H04L12/18 , H04L25/021 , H04L25/0242 , H04L25/03891 , H04W8/005 , H04W16/14 , H04W24/10 , H04W36/02 , H04W48/12 , H04W48/16 , H04W56/0005 , H04W68/04 , H04W72/02 , H04W72/0406 , H04W72/042 , H04W74/004 , H04W74/006 , H04W74/0816 , H04W76/10 , H04W76/19 , H04W76/30 , H04W84/045 , H04W84/18 , H04W88/02 , H04W88/06
摘要： A method for selecting at least one parameter for downlink data transmission with a mobile user equipment. The method is executable by a wireless communication base station having multiple antennas configured to communicate wirelessly with the mobile user equipment. The method receives an uplink probing signal from the mobile user equipment. The method determines a plurality of angles of arrival for a corresponding plurality of paths between the mobile user equipment and the multiple antennas. The method transmits a plurality of downlink probing signals directionally toward corresponding angles of arrival in the plurality of angles of arrival. Each downlink probing signal is a virtual antenna port with respect to the mobile user equipment. The method receives channel state information. The method composes at least one of a rank indicator (RI), precoding matrix indicator (PMI), or modulating and coding scheme (MCS) for downlink data transmission to the mobile user equipment.
摘要翻译：一种用于通过移动用户设备选择用于下行链路数据传输的至少一个参数的方法。该方法可由具有被配置为与移动用户设备进行无线通信的多个天线的无线通信基站执行。该方法从移动用户设备接收上行链路探测信号。该方法确定移动用户设备和多个天线之间的相应多个路径的多个到达角度。该方法将多个下行链路探测信号定向地朝向多个到达角中的相应到达角发射。每个下行链路探测信号是相对于移动用户设备的虚拟天线端口。该方法接收信道状态信息。该方法构成用于下行链路数据传输到移动用户设备的秩指示符（RI），预编码矩阵指示符（PMI）或调制和编码方案（MCS）中的至少一个。

4. 发明授权

US08958307B2 Enabling coexistence of high-density and low-density transmissions 有权
标题翻译：实现高密度和低密度传输的共存
公开(公告)号：US08958307B2
公开(公告)日：2015-02-17
申请号：US12978560
申请日：2010-12-25
申请人： Feng Xue , Qinghua Li , Wendy C. Wong
发明人： Feng Xue , Qinghua Li , Wendy C. Wong
IPC分类号： H04L12/26
CPC分类号： H04W52/0216 , H04W52/0238 , H04W52/24 , H04W52/286 , H04W52/367 , H04W52/383 , H04W72/0446 , H04W74/002 , H04W74/0808 , Y02D70/142 , Y02D70/144 , Y02D70/146
摘要： Embodiments may comprise logic such as hardware and/or code to enable coexistence of high-density and low-density transmissions with a modified CSMA protocol. Embodiments include a self-CTS (self clear to send) packet transmission prior to transmission of a ready to send (RTS) signal when initiating a high density transmission amidst legacy devices. In many embodiments, the self-CTS or the RTS includes a network allocation vector (NAV) having a value for the duration of the transmission. In some embodiments, the self-CTS may include a flag or bit to indicate the Shading Transmission Starts (STS).
摘要翻译：实施例可以包括诸如硬件和/或代码的逻辑，以使高密度和低密度传输与修改的CSMA协议共存。实施例包括在传输即将发送（RTS）信号之前发起传统设备中的高密度传输的自CTS（自清除发送）分组传输。在许多实施例中，自CTS或RTS包括具有传输持续时间的值的网络分配向量（NAV）。在一些实施例中，自CTS可以包括指示着色传输开始（STS）的标志或位。

5. 发明申请

US20120252470A1 DISTRIBUTED ADAPTIVE RESOURCE ALLOCATION TO ENHANCE CELL EDGE THROUGHPUT 失效
标题翻译：分布式自适应资源分配，以增强细胞边缘通过
公开(公告)号：US20120252470A1
公开(公告)日：2012-10-04
申请号：US13077715
申请日：2011-03-31
申请人： Wendy Wong , Qinghua Li , Feng Xue
发明人： Wendy Wong , Qinghua Li , Feng Xue
IPC分类号： H04W72/04
CPC分类号： H04W72/048 , H04J11/0023 , H04L1/0001 , H04L5/003 , H04L5/006 , H04L5/0073 , H04W72/082
摘要： Embodiments of a system and methods for distributed adaptive resource allocation to enhance cell edge throughput are generally described herein. Other embodiments may be described and claimed.
摘要翻译：这里一般地描述用于分布式自适应资源分配以增强小区边缘吞吐量的系统和方法的实施例。可以描述和要求保护其他实施例。

6. 发明申请

US20120163181A1 Enabling Coexistence of High-Density and Low-Density Transmissions 有权
标题翻译：实现高密度和低密度传输的共存
公开(公告)号：US20120163181A1
公开(公告)日：2012-06-28
申请号：US12978560
申请日：2010-12-25
申请人： Feng Xue , Qinghua Li , Wendy C. Wong
发明人： Feng Xue , Qinghua Li , Wendy C. Wong
IPC分类号： H04L12/26
CPC分类号： H04W52/0216 , H04W52/0238 , H04W52/24 , H04W52/286 , H04W52/367 , H04W52/383 , H04W72/0446 , H04W74/002 , H04W74/0808 , Y02D70/142 , Y02D70/144 , Y02D70/146
摘要： Embodiments may comprise logic such as hardware and/or code to enable coexistence of high-density and low-density transmissions with a modified CSMA protocol. Embodiments include a self-CTS (self clear to send) packet transmission prior to transmission of a ready to send (RTS) signal when initiating a high density transmission amidst legacy devices. In many embodiments, the self-CTS or the RTS includes a network allocation vector (NAV) having a value for the duration of the transmission. In some embodiments, the self-CTS may include a flag or bit to indicate the Shading Transmission Starts (STS).
摘要翻译：实施例可以包括诸如硬件和/或代码的逻辑，以使高密度和低密度传输与修改的CSMA协议共存。实施例包括在传输即将发送（RTS）信号之前发起传统设备中的高密度传输的自CTS（自清除发送）分组传输。在许多实施例中，自CTS或RTS包括具有传输持续时间的值的网络分配向量（NAV）。在一些实施例中，自CTS可以包括指示着色传输开始（STS）的标志或位。

7. 发明授权

US08442579B2 Distributed adaptive resource allocation to enhance cell edge throughput 失效
标题翻译：分布式自适应资源分配，以增强小区边缘吞吐量
公开(公告)号：US08442579B2
公开(公告)日：2013-05-14
申请号：US13077715
申请日：2011-03-31
申请人： Wendy Wong , Qinghua Li , Feng Xue
发明人： Wendy Wong , Qinghua Li , Feng Xue
IPC分类号： H04M1/00 , H04W72/00
CPC分类号： H04W72/048 , H04J11/0023 , H04L1/0001 , H04L5/003 , H04L5/006 , H04L5/0073 , H04W72/082
摘要： Embodiments of a system and methods for distributed adaptive resource allocation to enhance cell edge throughput are generally described herein. Other embodiments may be described and claimed.
摘要翻译：这里一般地描述用于分布式自适应资源分配以增强小区边缘吞吐量的系统和方法的实施例。可以描述和要求保护其他实施例。

8. 发明授权

US08467472B2 Device, system, and method of adjusting channel utilization for wireless transmission 有权
标题翻译：调整无线传输信道利用率的装置，系统和方法
公开(公告)号：US08467472B2
公开(公告)日：2013-06-18
申请号：US12886648
申请日：2010-09-21
申请人： Qinghua Li , Feng Xue , Wendy C. Wong
发明人： Qinghua Li , Feng Xue , Wendy C. Wong
IPC分类号： H04L12/413
CPC分类号： H04W74/085 , H04W52/367 , H04W52/44
摘要： Device, system, and method of adjusting channel utilization for wireless transmission. For example, a wireless communication unit may control a wireless transmission by a wireless communication device during a contention period, wherein the wireless communication unit is to wait for a back-off period prior to beginning the wireless transmission during the contention period, and wherein a duration of the back-off period is based on a transmission power of the wireless transmission. Other embodiments are described and claimed.
摘要翻译：调整无线传输信道利用率的装置，系统和方法。例如，无线通信单元可以在竞争时段期间通过无线通信设备来控制无线传输，其中无线通信单元要在竞争期间开始无线传输之前等待退避时段，并且其中a 退避时段的持续时间基于无线传输的发送功率。描述和要求保护其他实施例。

9. 发明申请

US20120071192A1 DEVICE, SYSTEM, AND METHOD OF ADJUSTING CHANNEL UTILIZATION FOR WIRELESS TRANSMISSION 有权
标题翻译：用于无线传输调整通道利用的装置，系统和方法
公开(公告)号：US20120071192A1
公开(公告)日：2012-03-22
申请号：US12886648
申请日：2010-09-21
申请人： Qinghua Li , Feng Xue , Wendy C. Wong
发明人： Qinghua Li , Feng Xue , Wendy C. Wong
IPC分类号： H04W52/00
CPC分类号： H04W74/085 , H04W52/367 , H04W52/44
摘要： Device, system, and method of adjusting channel utilization for wireless transmission. For example, a wireless communication unit may control a wireless transmission by a wireless communication device during a contention period, wherein the wireless communication unit is to wait for a back-off period prior to beginning the wireless transmission during the contention period, and wherein a duration of the back-off period is based on a transmission power of the wireless transmission. Other embodiments are described and claimed.
摘要翻译：调整无线传输信道利用率的装置，系统和方法。例如，无线通信单元可以在竞争时段期间通过无线通信设备来控制无线传输，其中无线通信单元要在竞争期间开始无线传输之前等待退避时段，并且其中a 退避时段的持续时间基于无线传输的发送功率。描述和要求保护其他实施例。

10. 发明申请

US20150189593A1 ENABLING COEXISTENCE OF HIGH-DENSITY AND LOW-DENSITY TRANSMISSIONS 审中-公开
标题翻译：实现高密度和低密度传输的共存
公开(公告)号：US20150189593A1
公开(公告)日：2015-07-02
申请号：US14583698
申请日：2014-12-27
申请人： Feng Xue , Qinghua Li , Wendy C. Wong
发明人： Feng Xue , Qinghua Li , Wendy C. Wong
IPC分类号： H04W52/02 , H04W74/08 , H04W72/04
CPC分类号： H04W52/0216 , H04W52/0238 , H04W52/24 , H04W52/286 , H04W52/367 , H04W52/383 , H04W72/0446 , H04W74/002 , H04W74/0808 , Y02D70/142 , Y02D70/144 , Y02D70/146
摘要： Embodiments may comprise logic to determine whether a value of a network allocation vector indicates that the apparatus is blocked from transmitting on the medium; logic to transmit a first clear to send packet at a first power level in response to determining that the apparatus is not blocked from transmitting on the medium, the first clear to send packet comprising a flag or bit to indicate the Shading Transmission Starts (STS); logic to receive a second clear to send packet after transmitting the first clear to send packet; and logic to transmit a first data transmission at a second power level after receiving the second clear to send packet, the second power level being less than the first power level.
摘要翻译：实施例可以包括用于确定网络分配向量的值是否指示该设备被阻止在介质上的传输的逻辑; 响应于确定所述装置不被阻止在所述介质上的传输，以第一功率电平发送第一清除发送分组的逻辑，所述第一清除发送分组包括标志或比特以指示所述着色传输开始（STS） ; 在发送第一个清除发送包之后接收第二个清除发送包的逻辑; 以及在接收到所述第二清除发送分组之后以第二功率电平发送第一数据传输的逻辑，所述第二功率电平小于所述第一功率电平。

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