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91. 发明申请

US20070066331A1 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：US20070066331A1
公开(公告)日：2007-03-22
申请号：US11231586
申请日：2005-09-21
申请人： Jun Zheng , Chengjin Zhang , Pieter Rooyen
发明人： Jun Zheng , Chengjin Zhang , Pieter Rooyen
IPC分类号： H04B7/00 , H04Q7/20
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。

92. 发明申请

US20070066238A1 Double search user group selection scheme with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedback 有权
标题翻译：双重搜索用户组选择方案，采用有限速率信道状态信息反馈的FDD多用户MIMO下行传输范围缩小
公开(公告)号：US20070066238A1
公开(公告)日：2007-03-22
申请号：US11232369
申请日：2005-09-21
申请人： Chengjin Zhang , Jun Zheng , Pieter Rooyen
发明人： Chengjin Zhang , Jun Zheng , Pieter Rooyen
IPC分类号： H04B7/00 , H04B1/00
CPC分类号： H04B7/0626 , H04B7/0408 , H04B7/0452 , H04B7/0617
摘要： Aspects of a double search user group selection scheme with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedback are provided. The method may comprise maximizing system capacity using feedback information for a plurality of signals in a frequency division duplex system to reduce a search range within which a group of signals having maximum channel gain are located. The feedback information may comprise quantized gain for the signals. Quantized channel direction for the signals within the reduced search range may be requested and received by the transmitter. One or two signals from the reduced search range that maximizes system capacity may be selected. The receivers associated with these signals may then be selected as the user group.
摘要翻译：提供了具有有限速率信道状态信息反馈的FDD多用户MIMO下行链路传输的范围缩小的双重搜索用户组选择方案。该方法可以包括使用频分双工系统中的多个信号的反馈信息来最大化系统容量，以减少具有最大信道增益的一组信号所在的搜索范围。反馈信息可以包括信号的量化增益。减少的搜索范围内的信号的量化信道方向可以由发射机请求和接收。可以选择使系统容量最大化的缩小搜索范围的一个或两个信号。然后可以选择与这些信号相关联的接收机作为用户组。

93. 发明申请

US20070066237A1 Method and system for greedy user group selection with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedback 有权
标题翻译：用于具有有限速率信道状态信息反馈的FDD多用户MIMO下行传输的范围缩减的贪心用户组选择的方法和系统
公开(公告)号：US20070066237A1
公开(公告)日：2007-03-22
申请号：US11232362
申请日：2005-09-21
申请人： Chengjin Zhang , Jun Zheng , Pieter Rooyen
发明人： Chengjin Zhang , Jun Zheng , Pieter Rooyen
IPC分类号： H04B7/00 , H04B1/00
CPC分类号： H04B7/0452 , H04B7/0626 , H04B7/0643 , H04L1/0625 , H04L1/0693 , H04L5/14 , H04L25/0204 , H04L25/0228 , H04L25/03343 , H04L2025/03426 , H04L2025/03802
摘要： Aspects of a greedy search user group selection scheme with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedback are provided. The method may comprise receiving feedback information via a communication channel for a plurality of users in a frequency division duplex system. The system capacity may be maximized using the feedback information based on a signal from a single user within a reduced search range or based on the signal from the single user and at least one other signal from another user within a remaining portion of the search range. The feedback information may comprise quantized gain and/or direction of the channel state information of the users.
摘要翻译：提供了具有有限速率信道状态信息反馈的FDD多用户MIMO下行链路传输的范围缩小的贪婪搜索用户组选择方案。该方法可以包括经由频分双工系统中的多个用户的通信信道接收反馈信息。可以使用基于在缩小搜索范围内来自单个用户的信号的反馈信息或者基于来自单个用户的信号以及在搜索范围的剩余部分内的来自另一用户的至少一个其他信号来使系统容量最大化。反馈信息可以包括用户的信道状态信息的量化增益和/或方向。

94. 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。

95. 发明授权

US08953557B2 Roaming method for a mobile terminal in WLAN, related access controller and access point device 有权
标题翻译： WLAN移动终端的漫游方法，相关的接入控制器和接入点设备
公开(公告)号：US08953557B2
公开(公告)日：2015-02-10
申请号：US13381260
申请日：2009-06-30
申请人： Jun Zheng , Chunyan Yao , Haibo Wen , Fanxiang Bin , Songwei Ma
发明人： Jun Zheng , Chunyan Yao , Haibo Wen , Fanxiang Bin , Songwei Ma
IPC分类号： H04W4/00 , H04W36/32 , H04W36/00 , H04W60/00 , H04W24/00 , H04W24/02 , H04W36/08 , H04W36/14 , H04W48/16 , H04W80/04 , H04W84/12 , H04W88/02 , H04W88/08
CPC分类号： H04W36/32 , H04W24/00 , H04W24/02 , H04W36/0033 , H04W36/08 , H04W36/14 , H04W48/16 , H04W60/00 , H04W80/04 , H04W84/12 , H04W88/02 , H04W88/08
摘要： A roaming method for a mobile terminal in a wireless local area network is disclosed. In the method, a target access point (AP) device receives an access request for roaming from the mobile terminal, and a target access controller (AC) obtains mobility information of the mobile terminal in an original extended service set based on the access request, wherein the mobility information include information of an AP device, an AC and a mobile agent server associated with the mobile terminal. Then the target AC determines whether the roaming for the mobile terminal is an inter-IP subnet roaming or an intra-IP subnet roaming based on the obtained mobility information. The target AC performs mobile IP based handover when the roaming is determined as the inter-IP subnet roaming and performs Inter Access Point Protocol based handover when the roaming is determined as the intra-IP subnet roaming.
摘要翻译：公开了一种用于无线局域网中的移动终端的漫游方法。在该方法中，目标接入点（AP）设备从移动终端接收漫游的接入请求，目标接入控制器（AC）基于接入请求，在原始的扩展业务集中获取移动终端的移动性信息，其中所述移动性信息包括与所述移动终端相关联的AP设备，AC和移动代理服务器的信息。然后，目标AC基于获得的移动性信息来确定移动终端的漫游是否是IP间子网漫游或内部IP子网漫游。当漫游被确定为IP网内漫游时，目标AC执行基于移动IP的切换，并且当漫游被确定为内部IP子网漫游时，执行基于接入点协议的切换。

96. 发明授权

US08515360B2 Method and system for greedy user group selection with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedback 有权
公开(公告)号：US08515360B2
公开(公告)日：2013-08-20
申请号：US13437635
申请日：2012-04-02
申请人： Chengjin Zhang , Jun Zheng , Pieter Van Rooyen
发明人： Chengjin Zhang , Jun Zheng , Pieter Van Rooyen
IPC分类号： H04B1/00 , H04M1/00
CPC分类号： H04B7/0452 , H04B7/0626 , H04B7/0643 , H04L1/0625 , H04L1/0693 , H04L5/14 , H04L25/0204 , H04L25/0228 , H04L25/03343 , H04L2025/03426 , H04L2025/03802
摘要： Aspects of a greedy search user group selection scheme with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedback are provided. The method may comprise receiving feedback information via a communication channel for a plurality of users in a frequency division duplex system. The system capacity may be maximized using the feedback information based on a signal from a single user within a reduced search range or based on the signal from the single user and at least one other signal from another user within a remaining portion of the search range. The feedback information may comprise quantized gain and/or direction of the channel state information of the users.

97. 发明申请

US20130016974A1 WAVELENGTH-SELECTABLE LASER DEVICE AND APPARATUS AND SYSTEM INCLUDING SAME 有权
标题翻译：波长选择性激光器件和包括其的装置和系统
公开(公告)号：US20130016974A1
公开(公告)日：2013-01-17
申请号：US13539961
申请日：2012-07-02
申请人： Jun Zheng , Stefan J. Murry
发明人： Jun Zheng , Stefan J. Murry
IPC分类号： H04B10/20 , H04B10/18 , H01S3/08 , H04J14/02
CPC分类号： H04J14/0282 , H01S5/141 , H01S5/4062 , H01S5/4087 , H04J14/0245 , H04J14/0246 , H04J14/0249 , H04J14/025
摘要： A wavelength-selectable laser device generally includes an array of laser emitters and a filtered external cavity for filtering light emitted from the laser emitters and reflecting different wavelengths back to each of the laser emitters such that lasing occurs at different wavelengths for each of the laser emitters. Each laser emitter includes a gain region that emits light across a plurality of wavelengths including, for example, channel wavelengths in an optical communication system. The filtered external cavity may include a dispersive optical element that receives the light from each of the laser emitters at different angles and passes or reflects different wavelengths of the light at different angles such that only wavelengths associated with the respective laser emitters are reflected back to the respective laser emitters. By selectively emitting light from one or more of the laser emitters, one or more channel wavelengths may be selected for lasing and transmission.
摘要翻译：波长可选激光器件通常包括激光发射器阵列和经滤波的外部空腔，用于对从激光发射器发射的光进行滤波并将不同的波长反射回每个激光发射器，使得每个激光发射器的不同波长发生激光。每个激光发射器包括在多个波长发射光的增益区域，包括例如光通信系统中的信道波长。经滤波的外腔可以包括分散光学元件，其以不同的角度接收来自每个激光发射器的光，并以不同角度通过或反射不同波长的光，使得仅与相应激光发射器相关联的波长被反射回到各自的激光发射器。通过选择性地发射来自一个或多个激光发射器的光，可以选择一个或多个沟道波长用于激光和透射。

98. 发明申请

US20130016972A1 LASER MUX ASSEMBLY FOR PROVIDING A SELECTED WAVELENGTH 有权
标题翻译：激光多功能一体机提供选择的波长
公开(公告)号：US20130016972A1
公开(公告)日：2013-01-17
申请号：US13359847
申请日：2012-01-27
申请人： Jun Zheng , Stefan J. Murry
发明人： Jun Zheng , Stefan J. Murry
IPC分类号： H04J14/02
CPC分类号： H04J14/02 , H04B10/2575 , H04B10/572 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： A laser mux assembly generally includes a back reflector selectively coupled to one of the input ports of an optical multiplexer, such as an arrayed waveguide grating (AWG), and at least one laser emitter coupled to an output port. The laser emitter may include a gain region that emits light across a plurality of wavelengths including, for example, channel wavelengths in an optical communication system. The emitted light is coupled into the output port and the AWG or optical multiplexer filters the emitted light from the laser emitter at different channel wavelengths. The back reflector reflects the filtered light at the respective channel wavelength such that lasing occurs at the channel wavelength(s) of the reflected, filtered light. The laser mux assembly may be used, for example, in a tunable transmitter, to generate an optical signal at a selected channel wavelength.
摘要翻译：激光多路复用器组件通常包括选择性地耦合到诸如阵列波导光栅（AWG）的光复用器的输入端口之一的后反射器，以及耦合到输出端口的至少一个激光发射器。激光发射器可以包括在多个波长发射光的增益区域，包括例如光通信系统中的信道波长。发射的光耦合到输出端口中，并且AWG或光学多路复用器以不同的信道波长对来自激光发射器的发射光进行滤波。后反射器反射在相应通道波长处的经滤光，使得在反射的滤光光的通道波长处发生激光。激光多路复用器组件可以用于例如可调谐发射机中，以在所选择的信道波长处产生光信号。

99. 发明申请

US20130016971A1 WDM OPTICAL SYSTEM AND METHOD INCLUDING MULTI-CHANNEL TRANSMITTERS WITH FILTERED OUTPUT FOR CHANNEL WAVELENGTH SELECTION 审中-公开
标题翻译： WDM光学系统和方法，其中包括用于通道波长选择的滤波器输出的多通道发射器
公开(公告)号：US20130016971A1
公开(公告)日：2013-01-17
申请号：US13543310
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： H04B10/20 , H04J14/02
CPC分类号： H04J14/02 , H04B10/506 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： A wavelength division multiplexed (WDM) optical system generally includes multi-channel transmitters that transmit optical signals on multiple channel wavelengths in the WDM system. The output of the multi-channel transmitters is filtered to select a unique channel wavelength associated with each of the respective transmitters for multiplexing and transmission in the WDM optical system. One embodiment of a multi-channel transmitter includes a full-spectrum Fabry-Perot (FP) laser that emits light across a range of wavelengths including all of the system channel wavelengths. Another embodiment of a multi-channel transmitter includes a broadly-tunable FP laser that is tunable to emit light across different ranges of wavelengths including subsets of the system channel wavelengths. The WDM optical system may include an arrayed waveguide grating (AWG) for filtering and multiplexing the optical signals output from the transmitters.
摘要翻译：波分复用（WDM）光学系统通常包括在WDM系统中在多个信道波长上发送光信号的多信道发射机。对多通道发射机的输出进行滤波以选择与各个发射机相关联的唯一信道波长，用于WDM光学系统中的复用和传输。多通道发射器的一个实施例包括在包括所有系统通道波长的波长范围内发射光的全光谱法布里 - 珀罗（FP）激光器。多通道发射机的另一实施例包括可调谐的FP激光器，其可以发射不同波长范围的光，包括系统信道波长的子集。 WDM光学系统可以包括用于对从发射机输出的光信号进行滤波和多路复用的阵列波导光栅（AWG）。

100. 发明申请

US20120183299A1 SYSTEM AND METHOD FOR DISTORTION COMPENSATION IN RESPONSE TO FREQUENCY DETECTION 有权
标题翻译：用于响应频率检测的失真补偿的系统和方法
公开(公告)号：US20120183299A1
公开(公告)日：2012-07-19
申请号：US13005820
申请日：2011-01-13
申请人： Jun Zheng , Yi Wang , Chuan Peng
发明人： Jun Zheng , Yi Wang , Chuan Peng
IPC分类号： H03F1/26 , H04B10/00
CPC分类号： H04B10/58 , H04B10/2575
摘要： A distortion compensation circuit with frequency detection may be used with one or more non-linear elements, such as a laser, to compensate for frequency-dependent distortion generated by the non-linear element(s), for example, in broadband multichannel RF applications. Embodiments of the distortion compensation circuit may include a frequency detector circuit that detects changes in frequency loading conditions in the distortion compensation circuit such that distortion compensation may be adjusted to compensate for distortion under different frequency loading conditions. In a multichannel RF system with multiple channel operation modes, for example, the frequency detector circuit may detect changes in the frequency loading condition as a result of changing operation modes.
摘要翻译：具有频率检测的失真补偿电路可以与一个或多个非线性元件（例如激光器）一起使用，以补偿例如在宽带多通道RF应用中由非线性元件产生的与频率相关的失真。失真补偿电路的实施例可以包括频率检测器电路，其检测失真补偿电路中的频率负载条件的变化，使得可以调整失真补偿以补偿在不同频率负载条件下的失真。在具有多通道操作模式的多通道RF系统中，例如，频率检测器电路可以检测作为改变操作模式的结果的频率负载状态的变化。

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