公开(公告)号：US20130122946A1

公开(公告)日：2013-05-16

申请号：US13490042

申请日：2012-06-06

申请人： Chenxi Zhu

发明人： Chenxi Zhu

IPC分类号： H04W76/00

CPC分类号： H04W48/20 ,  H04W84/047 ,  H04W88/085

摘要： In accordance with one or more embodiments of the present disclosure a method for selecting transceivers to provide wireless communication service for a wireless user endpoint comprises determining at least one characteristic of at least one communication channel between a wireless user endpoint and a first plurality of transceivers. The determination of the at least one characteristic is based on a reference signal generated by the wireless user endpoint for reception by the first plurality of transceivers. The method further comprises analyzing the at least one characteristic of the at least one communication channel. The method additionally comprises selecting at least one transceiver of the first plurality of transceivers to provide wireless communication service for the wireless user endpoint. The selection of the at least one transceiver is based on the at least one characteristic of the at least one communication channel.

摘要翻译： 根据本公开的一个或多个实施例，用于选择收发器以为无线用户端点提供无线通信服务的方法包括确定无线用户端点和第一多个收发器之间的至少一个通信信道的至少一个特征。 至少一个特征的确定基于由无线用户端点生成的用于由第一多个收发器接收的参考信号。 该方法还包括分析至少一个通信信道的至少一个特性。 该方法还包括选择第一多个收发器中的至少一个收发器来为无线用户端点提供无线通信服务。 所述至少一个收发器的选择基于所述至少一个通信信道的至少一个特性。

公开(公告)号：US20120289281A1

公开(公告)日：2012-11-15

申请号：US13425939

申请日：2012-03-21

申请人： Chenxi Zhu

发明人： Chenxi Zhu

IPC分类号： H04W72/02

CPC分类号： H04B7/0639 ,  H04B7/024 ,  H04L5/0007 ,  H04L25/0224 ,  H04L25/03904 ,  H04L25/03955

摘要： According to one embodiment, a method includes selecting a first transmission site from a plurality of transmission sites based on the quality of a first channel between the first transmission site and an endpoint. The method further includes determining a first precoding matrix corresponding to the first transmission site. The first precoding matrix may be applied to data transmitted by the first transmission site to the endpoint. The method further includes determining a second precoding matrix corresponding to a second transmission site of the plurality of transmission sites. The second precoding matrix may be determined based on at least a first spatial direction that is calculated based on at least the first channel.

摘要翻译： 根据一个实施例，一种方法包括基于第一传输站点和端点之间的第一信道的质量从多个传输站点中选择第一传输站点。 该方法还包括确定对应于第一传输站点的第一预编码矩阵。 第一预编码矩阵可以应用于由第一传输站点发送到端点的数据。 该方法还包括确定对应于多个传输站点的第二传输站点的第二预编码矩阵。 可以基于至少基于第一信道计算的至少第一空间方向来确定第二预编码矩阵。

公开(公告)号：US20120040642A1

公开(公告)日：2012-02-16

申请号：US13051220

申请日：2011-03-18

申请人： Chenxi Zhu

发明人： Chenxi Zhu

IPC分类号： H04B15/00

CPC分类号： H04W72/082 ,  H04W72/0406 ,  H04W74/0833 ,  H04W84/045

摘要： In one embodiment, a wireless base station, receives a random access preamble from a wireless device that is not authorized to utilize the wireless base station; completes a random access procedure with the wireless device; receives an interference stress message from the wireless device, the interference stress message indicating that the wireless device suffers interference from the wireless base station; and reduces interference for the wireless device.

摘要翻译： 在一个实施例中，无线基站从无授权使用无线基站的无线设备接收随机接入前导码; 完成与无线设备的随机接入过程; 从所述无线设备接收到干扰紧张消息，所述干扰紧张消息指示所述无线设备遭受来自所述无线基站的干扰; 并减少无线设备的干扰。

公开(公告)号：US20070248178A1

公开(公告)日：2007-10-25

申请号：US11785893

申请日：2007-04-20

申请人： Chenxi Zhu ,  Jonathan Russell Agre

发明人： Chenxi Zhu ,  Jonathan Russell Agre

IPC分类号： H04L27/28 ,  H04K1/10

CPC分类号： H04L5/023 ,  H04L27/2608 ,  H04W52/22 ,  H04W52/226 ,  H04W52/228 ,  H04W52/346

摘要： A scheduler and a method schedule available power and bandwidth to users. Equations for a continuous bandwidth allocation of a total bandwidth, and/or a continuous power distribution of a total power, are set up using Lagrangian multipliers to include constraints in a function that is maximum when a fair capacity is maximum. The continuous bandwidth allocation and/or the continuous power distribution represent sets of values corresponding to users that maximize the function. The equations are solved using waterfilling methods, wherein the continuous power distribution is determined for a previously determined bandwidth allocation, and/or the continuous bandwidth allocation is calculated for a previously determined power distribution.

摘要翻译： 调度器和方法为用户提供可用的功率和带宽。 使用拉格朗日乘数来建立总带宽的连续带宽分配和/或总功率的连续功率分配的等式，以在公平容量最大时在最大值的函数中包括约束。 连续带宽分配和/或连续功率分配表示与使功能最大化的用户对应的值集合。 使用填埋方法求解方程式，其中为先前确定的带宽分配确定连续功率分布，和/或为先前确定的功率分布计算连续带宽分配。

公开(公告)号：US09325401B2

公开(公告)日：2016-04-26

申请号：US13425939

申请日：2012-03-21

申请人： Chenxi Zhu

发明人： Chenxi Zhu

IPC分类号： H04W72/02 ,  H04B7/06 ,  H04B7/02 ,  H04L25/02 ,  H04L25/03 ,  H04L5/00

CPC分类号： H04B7/0639 ,  H04B7/024 ,  H04L5/0007 ,  H04L25/0224 ,  H04L25/03904 ,  H04L25/03955

摘要： According to one embodiment, a method includes selecting a first transmission site from a plurality of transmission sites based on the quality of a first channel between the first transmission site and an endpoint. The method further includes determining a first precoding matrix corresponding to the first transmission site. The first precoding matrix may be applied to data transmitted by the first transmission site to the endpoint. The method further includes determining a second precoding matrix corresponding to a second transmission site of the plurality of transmission sites. The second precoding matrix may be determined based on at least a first spatial direction that is calculated based on at least the first channel.

摘要翻译： 根据一个实施例，一种方法包括基于第一传输站点和端点之间的第一信道的质量从多个传输站点中选择第一传输站点。 该方法还包括确定对应于第一传输站点的第一预编码矩阵。 第一预编码矩阵可以应用于由第一传输站点发送到端点的数据。 该方法还包括确定对应于多个传输站点的第二传输站点的第二预编码矩阵。 可以基于至少基于第一信道计算的至少第一空间方向来确定第二预编码矩阵。

公开(公告)号：US08934896B2

公开(公告)日：2015-01-13

申请号：US13051220

申请日：2011-03-18

申请人： Chenxi Zhu

发明人： Chenxi Zhu

IPC分类号： H04W4/00 ,  H04W72/08 ,  H04W72/04 ,  H04W74/08 ,  H04W84/04

CPC分类号： H04W72/082 ,  H04W72/0406 ,  H04W74/0833 ,  H04W84/045

摘要： In one embodiment, a wireless base station, receives a random access preamble from a wireless device that is not authorized to utilize the wireless base station; completes a random access procedure with the wireless device; receives an interference stress message from the wireless device, the interference stress message indicating that the wireless device suffers interference from the wireless base station; and reduces interference for the wireless device.

摘要翻译： 在一个实施例中，无线基站从无授权使用无线基站的无线设备接收随机接入前导码; 完成与无线设备的随机接入过程; 从所述无线设备接收到干扰紧张消息，所述干扰紧张消息指示所述无线设备遭受来自所述无线基站的干扰; 并减少无线设备的干扰。

公开(公告)号：US08705274B2

公开(公告)日：2014-04-22

申请号：US13376925

申请日：2011-06-30

申请人： Ming Liu ,  Chenxi Zhu ,  Zongliang Huo ,  Feng Yan ,  Qin Wang ,  Shibing Long

发明人： Ming Liu ,  Chenxi Zhu ,  Zongliang Huo ,  Feng Yan ,  Qin Wang ,  Shibing Long

IPC分类号： G11C16/04 ,  H01L21/336

CPC分类号： H01L27/11582

摘要： The present disclosure relates to the field of microelectronics manufacture and memories. A three-dimensional multi-bit non-volatile memory and a method for manufacturing the same are disclosed. The memory comprises a plurality of memory cells constituting a memory array. The memory array may comprise: a gate stack structure; periodically and alternately arranged gate stack regions and channel region spaces; gate dielectric layers for discrete charge storage; periodically arranged channel regions; source doping regions and drain doping regions symmetrically arranged to each other; bit lines led from the source doping regions and the drain doping regions; and word lines led from the gate stack regions. The gate dielectric layers for discrete charge storage can provide physical storage spots to achieve single-bit or multi-bit operations, so as to achieve a high storage density. According to the present disclosure, the localized charge storage characteristic of the charge trapping layer and characteristics such as a longer effective channel length and a higher density of a vertical memory structure are utilized, to provide multiple storage spots in a single memory cell. Therefore, the storage density is improved while good performances such as high speed are ensured.

摘要翻译： 本公开涉及微电子制造领域和存储器。 公开了一种三维多位非易失性存储器及其制造方法。 存储器包括构成存储器阵列的多个存储单元。 存储器阵列可以包括：栅极堆叠结构; 定期和交替布置的栅极堆叠区域和沟道区域空间; 用于离散电荷存储的栅极电介质层; 定期布置的通道区域; 源极掺杂区域和漏极掺杂区域彼此对称布置; 源极掺杂区域和漏极掺杂区域引出的位线; 和从栅极堆栈区域引出的字线。 用于离散电荷存储的栅极电介质层可以提供物理存储点以实现单位或多位操作，从而实现高存储密度。 根据本公开，利用电荷俘获层的局部电荷存储特性以及垂直存储器结构的较长有效沟道长度和较高密度等特征，以在单个存储单元中提供多个存储点。 因此，存储密度得到改善，同时保证了诸如高速的良好性能。

公开(公告)号：US07768973B2

公开(公告)日：2010-08-03

申请号：US11785892

申请日：2007-04-20

申请人： Chenxi Zhu ,  Tolga Girici ,  Jonathan Russell Agre

发明人： Chenxi Zhu ,  Tolga Girici ,  Jonathan Russell Agre

IPC分类号： H04W4/00

CPC分类号： H04W72/1242 ,  H04L5/023

摘要： Available bandwidth and power for users demanding real time and non-real time data traffic are scheduled, while maximizing proportional fairness for the users over a plurality of time slots, and meeting quality of service constraints for real time data traffic users. The Lagrangian multipliers are used to define a function which includes the proportional fair capacity over the plurality of time slots, and the total power, the total bandwidth, and rate of the real time users' constraints. A maximum of the function is determined for each time slot by binary searching two parameters while observing the total power and total bandwidth. An optimal allocation of the bandwidth and power for the time slot is calculated using the two parameters.

摘要翻译： 调度要求实时和非实时数据流量的用户的可用带宽和功率，同时在多个时隙中最大化用户的比例公平性，并满足实时数据流量用户的服务质量约束。 拉格朗日乘数用于定义包括多个时隙中的比例公平容量以及实时用户约束的总功率，总带宽和速率的函数。 通过二进制查找两个参数同时观察总功率和总带宽，确定每个时隙的最大功能。 使用两个参数计算时隙的带宽和功率的最佳分配。

公开(公告)号：US20080043712A1

公开(公告)日：2008-02-21

申请号：US11840669

申请日：2007-08-17

申请人： Michael John Hart ,  Yuefeng Zhou ,  Dorin Viorel ,  Chenxi Zhu ,  Michiharu Nakamura ,  Masahiro Watanabe ,  Hiroshi Fujita ,  Makoto Yoshida

发明人： Michael John Hart ,  Yuefeng Zhou ,  Dorin Viorel ,  Chenxi Zhu ,  Michiharu Nakamura ,  Masahiro Watanabe ,  Hiroshi Fujita ,  Makoto Yoshida

IPC分类号： H04B7/212

CPC分类号： H04W28/16 ,  H04B7/15507 ,  H04B7/2606 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0048 ,  H04L25/0226 ,  H04L27/2655 ,  H04L27/2692 ,  H04W48/08 ,  H04W84/047

摘要： A transmission method for use in a multi-hop wireless communication system is provided. The system includes a source apparatus, a destination apparatus and one or more intermediate apparatuses. The system has access to at least one predetermined transmission introduction sequence and also has access to a time-frequency format for use in assigning available transmission frequency bandwidth during a discrete transmission interval, said format defining a plurality of transmission windows within such an interval. Each window occupies a different part of that interval and has a frequency bandwidth profile within said available transmission frequency bandwidth over its part of that interval. Each said window being assignable for such a transmission interval to at least one of said apparatuses for use in transmission. The method includes, when transmitting a message with a preamble in a particular transmission interval, transmitting the preamble in a first transmission window of that transmission interval. Furthermore, the method includes transmitting the transmission introduction sequence in a second transmission window of that transmission interval other than the first transmission window preferably as control information for use by at least one said intermediate apparatus or the destination apparatus.

摘要翻译： 提供了一种用于多跳无线通信系统的传输方法。 该系统包括源设备，目的地设备和一个或多个中间设备。 该系统可以访问至少一个预定的传输介绍序列，并且还可以访问用于在离散传输间隔期间分配可用传输频率带宽的时间 - 频率格式，所述格式在这样的间隔内定义多个传输窗口。 每个窗口占据该间隔的不同部分，并且在该间隔的部分内在所述可用传输频率带宽内具有频带配置。 每个所述窗口可分配给用于传输的所述设备中的至少一个的这种传输间隔。 该方法包括：在特定发送间隔中发送具有前导码的消息时，在该发送间隔的第一发送窗口中发送前导码。 此外，该方法包括：在第一传输窗口之外的传输间隔的第二传输窗口中优选地传输传输介绍序列作为至少一个所述中间设备或目的设备使用的控制信息。

公开(公告)号：US09572123B2

公开(公告)日：2017-02-14

申请号：US13420445

申请日：2012-03-14

申请人： Dorin Viorel ,  Chenxi Zhu

发明人： Dorin Viorel ,  Chenxi Zhu

IPC分类号： H04W4/00 ,  H04W56/00 ,  H04L5/00 ,  H04L5/14

CPC分类号： H04W56/0045 ,  H04L5/0035 ,  H04L5/1469 ,  H04W56/0005 ,  H04W56/0015

摘要： In an example embodiment, a system may include a mobile terminal. The mobile terminal may be configured to receive a first signal including a first time advance value. The first signal may be transmitted by a first base station. The mobile terminal may be further configured to receive a second signal. The second signal may be transmitted by a second base station. The mobile base station may be further configured to determine a difference in propagation delay between the first and second signals. The mobile terminal may be further configured to determine a second time advance value by correlating the first time advance value with the difference in propagation delay.

摘要翻译： 在示例性实施例中，系统可以包括移动终端。 移动终端可以被配置为接收包括第一时间提前值的第一信号。 第一信号可以由第一基站发送。 移动终端还可以被配置为接收第二信号。 第二信号可以由第二基站发送。 移动基站还可以被配置为确定第一和第二信号之间的传播延迟的差异。 移动终端还可以被配置为通过将第一时间提前值与传播延迟的差相关联来确定第二时间提前值。