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1. 发明授权

US09160434B2 RF transceiver with beamforming antenna and methods for use therewith 有权
标题翻译：具有波束成形天线的RF收发器及其使用的方法
公开(公告)号：US09160434B2
公开(公告)日：2015-10-13
申请号：US13329302
申请日：2011-12-18
申请人： David Garrett , Jun Zheng , Hamid Eslami
发明人： David Garrett , Jun Zheng , Hamid Eslami
IPC分类号： H04W16/18 , H04B7/06
CPC分类号： H04B7/0617 , H04B7/0623 , H04B7/0695
摘要： An RF transceiver includes a configuration controller that generates a control signal to select a first candidate radiation pattern for a beamforming antenna based on a first plurality of steering weights. An RF transceiver section broadcasts a first beacon transmission with the first candidate radiation pattern, and generates feedback signals to indicate if a first remote station has responded to the first beacon transmission. When the first remote station has responded to the first beacon transmission, the configuration controller stores the first plurality of steering weights used in association with the beacon transmission and generates control signals to the RF transceiver section to use the first candidate radiation pattern when communicating with the first remote station.
摘要翻译： RF收发器包括配置控制器，其基于第一多个转向权重产生控制信号以选择用于波束成形天线的第一候选辐射图。 RF收发器部分利用第一候选辐射图广播第一信标传输，并且产生反馈信号以指示第一远程站是否响应于第一信标传输。当第一远程站对第一信标传输作出响应时，配置控制器存储与信标传输相关联使用的第一多个转向权重，并且当与该收发器部分通信时产生控制信号到RF收发器部分以使用第一候选辐射模式第一个远程站。

2. 发明申请

US20130109324A1 REVERSE CHANNEL ESTIMATION FOR RF TRANSCEIVER WITH BEAMFORMING ANTENNA 审中-公开
标题翻译：射频收发器与波束形成天线的反向信道估计
公开(公告)号：US20130109324A1
公开(公告)日：2013-05-02
申请号：US13329296
申请日：2011-12-18
申请人： David Garrett , Jun Zheng , Hamid Eslami
发明人： David Garrett , Jun Zheng , Hamid Eslami
IPC分类号： H04W88/02
CPC分类号： H04B7/0617 , H04B7/0408 , H04L25/03949
摘要： A radio frequency (RF) transceiver includes a plurality of RF transceiver sections that generate first transmissions to a non-beamforming first remote station based on a first plurality of steering weights for a plurality of antennas and to receive second transmissions from the first remote station, wherein the first transmissions and the second transmissions are via a first communication channel. A configuration controller generates the first plurality of steering weights based on a reverse channel estimation of the first communication channel.
摘要翻译：射频（RF）收发器包括多个RF收发器部分，其基于多个天线的第一多个转向权重并且从第一远程站接收第二传输来产生到非波束成形的第一远程站的第一传输，其中所述第一传输和所述第二传输是经由第一通信信道。配置控制器基于第一通信信道的反向信道估计来生成第一多个转向权重。

3. 发明申请

US20130109448A1 RF TRANSCEIVER WITH BEAMFORMING ANTENNA AND METHODS FOR USE THEREWITH 有权
标题翻译：射频收发器与波束形成天线及其使用方法
公开(公告)号：US20130109448A1
公开(公告)日：2013-05-02
申请号：US13329302
申请日：2011-12-18
申请人： David Garrett , Jun Zheng , Hamid Eslami
发明人： David Garrett , Jun Zheng , Hamid Eslami
IPC分类号： H04W88/02
CPC分类号： H04B7/0617 , H04B7/0623 , H04B7/0695
摘要： An RF transceiver includes a configuration controller that generates a control signal to select a first candidate radiation pattern for a beamforming antenna based on a first plurality of steering weights. An RF transceiver section broadcasts a first beacon transmission with the first candidate radiation pattern, and generates feedback signals to indicate if a first remote station has responded to the first beacon transmission. When the first remote station has responded to the first beacon transmission, the configuration controller stores the first plurality of steering weights used in association with the beacon transmission and generates control signals to the RF transceiver section to use the first candidate radiation pattern when communicating with the first remote station.
摘要翻译： RF收发器包括配置控制器，其基于第一多个转向权重产生控制信号以选择用于波束成形天线的第一候选辐射图。 RF收发器部分利用第一候选辐射图广播第一信标传输，并且产生反馈信号以指示第一远程站是否响应于第一信标传输。当第一远程站对第一信标传输作出响应时，配置控制器存储与信标传输相关联使用的第一多个转向权重，并且当与该收发器部分通信时产生控制信号到RF收发器部分以使用第一候选辐射模式第一个远程站。

4. 发明授权

US09479280B2 Extended cavity fabry-perot laser assembly capable of high speed optical modulation with narrow mode spacing and WDM optical system including same 有权
标题翻译：具有狭窄模式间隔的高速光调制和包括其的WDM光学系统的扩展腔法布里 - 珀罗激光器组件
公开(公告)号：US09479280B2
公开(公告)日：2016-10-25
申请号：US13543259
申请日：2012-07-06
申请人： Jun Zheng , Stefan J. Murry
发明人： Jun Zheng , Stefan J. Murry
IPC分类号： H04J14/02 , H04B10/50 , H04B10/572 , H01S5/14
CPC分类号： H01S5/146 , H01S5/125 , H04B10/25 , H04B10/503 , H04B10/506 , H04B10/572 , H04J14/02 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： An extended cavity Fabry-Perot laser assembly provides relatively narrow mode spacing while allowing relatively high speed optical modulation. The extended cavity Fabry-Perot laser assembly generally includes an exit reflector physically separated from a laser emitter (e.g., a gain chip) to extend the lasing cavity and narrow the mode spacing while maintaining a relatively small gain region in the laser emitter capable of higher speed optical modulation. The extended cavity Fabry-Perot laser assembly may be used in a multi-channel transmitter in a wavelength division multiplexed (WDM) optical system that selects a channel wavelength for the transmitter from among multiple channel wavelengths emitted by the laser assembly. The narrow mode spacing may be less than a WDM channel width, and more specifically, may be less than a channel passband of an arrayed waveguide grating (AWG) or other filter used to select the channel wavelength.
摘要翻译：扩展腔法布里 - 珀罗激光器组件提供相对窄的模式间隔，同时允许相对高速的光学调制。扩展腔法布里 - 珀罗激光器组件通常包括与激光发射器（例如，增益芯片）物理分离的出射反射器，以延伸激光腔并且缩小模式间隔，同时保持激光发射器中能够较高的相对小的增益区域速度光调制。扩展腔法布里 - 珀罗激光器组件可以用在波分复用（WDM）光学系统中的多通道发射机中，该系统从由激光组件发射的多个信道波长中选择用于发射机的信道波长。窄模式间隔可以小于WDM沟道宽度，更具体地，可以小于用于选择沟道波长的阵列波导光栅（AWG）或其他滤波器的通道通带。

5. 发明授权

US09356674B2 Method and system for using non-uniform channel quantization for a feedback-based communication system 有权
标题翻译：用于基于反馈的通信系统使用非均匀信道量化的方法和系统
公开(公告)号：US09356674B2
公开(公告)日：2016-05-31
申请号：US12652150
申请日：2010-01-05
申请人： Jun Zheng , Mark Kent , Vinko Erceg
发明人： Jun Zheng , Mark Kent , Vinko Erceg
IPC分类号： H04B17/00 , H04B7/06 , H04B7/04 , H04L1/00 , H04L25/02
CPC分类号： H04B7/0626 , H04B7/0417 , H04L1/0026 , H04L1/003 , H04L25/0202
摘要： A mobile device estimates channel state information (CSI) comprising, for example, CQI and/or SNR, for a downlink channel. The estimated CSI is non-uniformly quantized and transmitted to the base station over a finite-rate feedback channel. Different portions of the estimated CSI are quantized using different quantization step sizes, which are determined according to a performance metric function such as a channel capacity function of the estimated CSI. A quantization step size for a portion of the estimated CSI is increased if a low distribution probability is indicated by the portion of the estimated CSI. A quantization step size for a portion of the estimated CSI is decreased if a high distribution probability is indicated. The mobile device quantizes the estimated CSI using the determined quantization step sizes to transmit to the base station over the finite-rate feedback channel. Downlink data transmission is received according to the transmitted CSI.
摘要翻译：移动设备针对下行链路信道估计包括例如CQI和/或SNR的信道状态信息（CSI）。估计的CSI被不均匀地量化，并通过有限速率反馈信道发送到基站。使用不同的量化步长量化估计的CSI的不同部分，这些量化步长根据诸如估计的CSI的信道容量函数的性能度量功能来确定。如果估计的CSI的部分指示低分布概率，则估计的CSI的一部分的量化步长增加。如果指示高分配概率，则估计CSI的一部分的量化步长减小。移动设备使用确定的量化步长量化估计的CSI，以便通过有限速率反馈信道向基站发送。根据发送的CSI接收下行链路数据传输。

6. 发明授权

US09341774B2 Optically matched laser array coupling assembly for coupling laser array to arrayed waveguide grating 有权
标题翻译：光学匹配激光阵列耦合组件，用于将激光阵列耦合到阵列波导光栅
公开(公告)号：US09341774B2
公开(公告)日：2016-05-17
申请号：US13357142
申请日：2012-01-24
申请人： Jun Zheng , I-Lung Ho , Hung-Lun Chang
发明人： Jun Zheng , I-Lung Ho , Hung-Lun Chang
IPC分类号： H04B10/00 , G02B6/34 , G02B6/12 , G02B6/42
CPC分类号： G02B6/12019 , G02B6/4215
摘要： A laser array optical coupling assembly may be used to couple a laser array to an arrayed waveguide grating (AWG), for example, in an optical transmitter in a wavelength division multiplexed (WDM) optical communication system. The laser array optical coupling assembly may include an optical fiber tip array with polished optical fiber tips providing a reduced mode field diameter to improve coupling efficiency with the laser array. The laser array optical coupling assembly may also include a direct coupling of the laser array to the AWG with modified AWG inputs reducing the mode field diameter to improve coupling efficiency with the laser array. The laser array optical coupling assembly may be used, for example, in an optical line terminal (OLT) in a WDM passive optical network (PON) or in other transmitters or transceivers in a WDM system capable of transmitting and receiving optical signals on multiple channel wavelengths.
摘要翻译：可以使用激光阵列光耦合组件将激光器阵列耦合到阵列波导光栅（AWG），例如在波分复用（WDM）光通信系统中的光发射机中。激光阵列光耦合组件可以包括具有抛光光纤尖端的光纤尖端阵列，其提供减小的模场直径以提高与激光器阵列的耦合效率。激光阵列光耦合组件还可以包括激光器阵列与AWG的直接耦合，其具有改进的AWG输入，降低模场直径以提高与激光器阵列的耦合效率。激光阵列光耦合组件可用于例如WDM无源光网络（PON）中的光线路终端（OLT）或能够在多个信道上发射和接收光信号的WDM系统中的其他发射机或收发机波长。

7. 发明授权

US09184969B2 Preamble for use within single user, multiple user, multiple access, and/or MIMO wireless communications 有权
标题翻译：在单用户，多用户，多路访问和/或MIMO无线通信中使用的前导码
公开(公告)号：US09184969B2
公开(公告)日：2015-11-10
申请号：US13453703
申请日：2012-04-23
申请人： Ron Porat , Vinko Erceg , Jun Zheng
发明人： Ron Porat , Vinko Erceg , Jun Zheng
IPC分类号： H04L27/26 , H04L1/00 , H04L5/00 , H04L1/06 , H04B7/04 , H04B7/06
CPC分类号： H04L27/2613 , H04B7/0452 , H04B7/0669 , H04B7/0697 , H04L1/0017 , H04L1/0025 , H04L1/0041 , H04L1/007 , H04L1/0075 , H04L1/0625 , H04L5/0092 , H04L27/2626 , H04L27/2647 , H04L2001/0098
摘要： Preamble for use within single user, multiple user, multiple access, and/or MIMO wireless communications. A selected preamble type is employed for use in generating a signal to be transmitted from one communication device to at least one other communication device. Depending upon a desired operational mode, as few as one preamble type, or two or more preamble types may be associated with a given operational mode. When operating in accordance with a given operational mode, a preamble type is selected from available preamble types of an operational mode. A preferred implementation may include two respective preamble types such that one preamble type is used for single user (SU) operation with transmit beamforming weights applied at the beginning of the packet or for open loop SU transmissions only, while the other preamble type, having an multiple user (MU) characteristic, is used for both SU beamforming and MU operations.
摘要翻译：在单用户，多用户，多路访问和/或MIMO无线通信中使用的前导码。选择的前导码类型被用于生成要从一个通信设备发送到至少一个其他通信设备的信号。根据期望的操作模式，可以将少至一个前同步码类型或两个或多个前导码类型与给定操作模式相关联。当根据给定的操作模式操作时，从操作模式的可用前导码类型中选择前导码类型。优选实现可以包括两个相应的前导码类型，使得一个前导码类型被用于单个用户（SU）操作，其中在分组的开始处应用的发送波束成形权重或仅用于开环SU传输，而另一个前导码类型具有多用户（MU）特性用于SU波束形成和MU操作。

8. 发明授权

US08934572B2 Phase rotation for preambles within multiple user, multiple access, and/or MIMO wireless communications 有权
标题翻译：在多用户，多路访问和/或MIMO无线通信中的前导码的相位旋转
公开(公告)号：US08934572B2
公开(公告)日：2015-01-13
申请号：US13217830
申请日：2011-08-25
申请人： Jun Zheng , Min Chuin Hoo , Vinko Erceg
发明人： Jun Zheng , Min Chuin Hoo , Vinko Erceg
IPC分类号： H04K1/02 , H04L5/00 , H04L27/26 , H04L25/03
CPC分类号： H04L27/227 , H04B7/084 , H04L5/0026 , H04L5/0048 , H04L25/03866 , H04L27/20 , H04L27/2613 , H04L27/2621
摘要： Phase rotation for preambles within multiple user, multiple access, and/or MIMO wireless communications. An appropriately designed phase rotation vector and/or appropriately designed cyclic shift delays (CSDs) are applied to respective sub-band components of the preamble. With appropriately designed CSDs, certain fields within the preamble are not modified. For example, a legacy short training field (L-STF) of the preamble is not changed when using appropriately designed CSDs. The respective CSDs may be implemented as integer multiples of a common CSD (e.g., 0×CSD, 1×CSD, 2×CSD, etc. such that one of the values of such a CSD vector may be zero [0], another may be the common CSD itself, etc.). Also, by employing an appropriately designed phase rotation vector and integer multiples of a CSD to a preamble, the respective peak to average power ratio (PAPR) between different respective fields within the preamble may be minimized.
摘要翻译：在多用户，多路访问和/或MIMO无线通信中的前导码的相位旋转。将适当设计的相位旋转矢量和/或适当设计的循环移位延迟（CSD）应用于前导码的各个子带分量。通过适当设计的CSD，前导码中的某些字段不会被修改。例如，使用适当设计的CSD时，前导码的传统短训练字段（L-STF）不会改变。相应的CSD可以实现为公共CSD的整数倍（例如，0×CSD，1×CSD，2×CSD等，使得这样的CSD向量的值之一可以为零[0]，另一个可以成为常见的CSD本身等）。此外，通过将适当设计的相位旋转向量和CSD的整数倍应用于前同步码，可以使前导码内的不同相应场之间的相应峰均功率比（PAPR）最小化。

9. 发明授权

US08934432B2 Method and system for a double search user group selection scheme with range reduction in TDD multiuser MIMO downlink transmission 有权
标题翻译：用于TDD多用户MIMO下行链路传输的范围缩减的双重搜索用户组选择方案的方法和系统
公开(公告)号：US08934432B2
公开(公告)日：2015-01-13
申请号：US13611957
申请日：2012-09-12
申请人： Jun Zheng , Chengjin Zhang , Pieter van Rooyen
发明人： Jun Zheng , Chengjin Zhang , Pieter van Rooyen
IPC分类号： H04W4/00 , H04J3/00 , H04B7/04
CPC分类号： H04B7/0452 , H04B7/0408 , H04B7/0413 , H04L5/1469
摘要： Certain aspects of a method and system for processing signals in a communication system may include maximizing system capacity for a time division duplex (TDD) multiple-input multiple-output (MIMO) system, based on reducing a search range within which to find a group of signals having maximum channel gain. At least one of: a first signal for a first user and a second signal for a second user may be selected, which are both within the reduced search range, and which provides a maximum system capacity. The first signal for the first user may be selected from the reduced search range corresponding to a channel gain that is greater than a channel gain corresponding to a remaining portion of the reduced search range. The reduced search range may be generated by sorting a plurality of signals based on a channel gain corresponding to each of the plurality of signals.
摘要翻译：用于处理通信系统中的信号的方法和系统的某些方面可以包括：基于减少在其中寻找组的搜索范围来最大化时分双工（TDD）多输入多输出（MIMO）系统的系统容量的信号具有最大的信道增益。可以选择以下中的至少一个：可以选择第一用户的第一信号和第二用户的第二信号，这两者都在缩小的搜索范围内，并且提供最大的系统容量。用于第一用户的第一信号可以从对应于比还原搜索范围的剩余部分对应的信道增益大的信道增益的缩小搜索范围中选择。可以通过基于与多个信号中的每个信号相对应的信道增益对多个信号进行排序来生成缩小搜索范围。

10. 发明授权

US08817899B2 Method and system for an alternating delta quantizer for limited feedback MIMO pre-coders 有权
标题翻译：用于有限反馈MIMO预编码器的交替Δ量化器的方法和系统
公开(公告)号：US08817899B2
公开(公告)日：2014-08-26
申请号：US13310872
申请日：2011-12-05
申请人： Mark Kent , Vinko Erceg , Jun Zheng , Uri Landau
发明人： Mark Kent , Vinko Erceg , Jun Zheng , Uri Landau
IPC分类号： H04L27/28
CPC分类号： H04B7/0417 , H04B7/0626 , H04B7/0639 , H04B7/0641
摘要： Aspects of a method and system for an alternating delta quantizer for limited feedback MIMO pre-coders may comprise quantizing a change in channel state information in a MIMO pre-coding system onto at least a first and a second codebook, each of which comprises one or more unitary matrices, using a cost function; feeding back, in an alternating manner, an index to an element of at least the first codebook or the second codebook, associated with the quantizing, from a receiver to a transmitter in said MIMO pre-coding system, and generating the at least first and second codebook based on at least the channel state information. The channel state information may be a matrix V and the cost function may be defined by the following relationship: f ⁡ ( A ) = ( 1 N ⁢ ∑ j = 1 N ⁢  a jj  2 ) where A is a matrix of size N by N and aij is element (i,j) of matrix A.
摘要翻译：用于有限反馈MIMO预编码器的交替式量化器的方法和系统的方面可以包括将MIMO预编码系统中的信道状态信息的改变量化到至少第一和第二码本上，每个码本包括一个或更多的单位矩阵，使用成本函数; 以交替的方式，向所述MIMO预编码系统中的从接收机到发射机的与量化相关联的至少第一码本或第二码本的元素的索引进行反馈，并且生成至少第一和至少基于信道状态信息的第二码本。信道状态信息可以是矩阵V，并且成本函数可以由以下关系定义：f⁡（A）=（1NΣj = 1 Na jj her 2）其中A是大小的矩阵 N是N，aij是矩阵A的元素（i，j）。

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