公开(公告)号：US20130194997A1

公开(公告)日：2013-08-01

申请号：US13618197

申请日：2012-09-14

申请人： Chenxi Zhu

发明人： Chenxi Zhu

IPC分类号： H04W4/06

CPC分类号： H04W72/042 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0094 ,  H04W72/1289

摘要： According to one embodiment, a method includes receiving a communication from a transceiver. An endpoint searches a search space for one or more control signals addressed to the endpoint. The search space includes one or more subcarrier frequencies of the plurality of subcarrier frequencies that are located within the narrowband portion of the frequency range and no subcarrier frequencies located outside the narrowband portion of the frequency range. The endpoint decodes at least one control signal addressed to the endpoint and transmitted using at least subcarrier frequency of the search space. The at least one decoded control signal indicates at least one time and at least one set of subcarrier frequencies of the plurality of subcarrier frequencies used to transmit at least one data signal of the communication to the endpoint. The method further includes recovering, by the endpoint, the at least one data signal transmitted to the endpoint.

摘要翻译： 根据一个实施例，一种方法包括从收发机接收通信。 端点在搜索空间中搜索寻址到端点的一个或多个控制信号。 搜索空间包括位于频率范围的窄带部分内的多个子载波频率的一个或多个子载波频率，并且没有位于频率范围的窄带部分之外的副载波频率。 端点解码至少一个寻址到端点的控制信号，并使用搜索空间的至少副载波频率进行发送。 所述至少一个解码控制信号指示用于将通信的至少一个数据信号发送到端点的多个子载波频率中的至少一个时间和至少一组子载波频率。 该方法还包括由端点恢复发送到端点的至少一个数据信号。

公开(公告)号：US20130121439A1

公开(公告)日：2013-05-16

申请号：US13485029

申请日：2012-05-31

申请人： Chenxi Zhu ,  Huy-Dung Han

发明人： Chenxi Zhu ,  Huy-Dung Han

IPC分类号： H04L25/49

CPC分类号： H04B7/0456 ,  H04B7/024 ,  H04L25/03904 ,  H04L25/0391 ,  H04L25/03955 ,  H04L25/03961

摘要： In accordance with one or more embodiments of the present disclosure a method for generating a codebook comprises generating a plurality of wireless communication channel representations. The method further comprises generating a precoding matrix for each of the plurality of wireless communication channel representations. The method additionally comprises performing a clustering operation on the precoding matrices to determine a plurality of centroids associated with the precoding matrices. Also the method includes determining codewords based on the centroids and generating a codebook based on the codewords.

摘要翻译： 根据本公开的一个或多个实施例，生成码本的方法包括生成多个无线通信信道表示。 该方法还包括为多个无线通信信道表示中的每一个生成预编码矩阵。 该方法另外包括对预编码矩阵执行聚类操作以确定与预编码矩阵相关联的多个质心。 此外，该方法包括基于质心确定码字并且基于码字生成码本。

公开(公告)号：US20130083826A1

公开(公告)日：2013-04-04

申请号：US13489230

申请日：2012-06-05

申请人： Chenxi Zhu

发明人： Chenxi Zhu

IPC分类号： H04B1/7097

CPC分类号： H04L25/03929 ,  H04B7/0473 ,  H04L5/0035

摘要： According to one embodiment, a method includes encoding a bit stream into a plurality of codewords. For each codeword of the plurality of codewords, a plurality of data symbols that represent the respective codeword are generated. Each data symbol of the respective codeword encodes one or more bits of the respective codeword into one or more modulation characteristics of a carrier wave. The method further includes spreading, by one or more processors, each data symbol of at least a subset of at least one codeword of the plurality of codewords among a plurality of layers such that each layer includes a portion of the respective data symbol. Information indicated by the plurality of layers is transmitted to an transceiver.

摘要翻译： 根据一个实施例，一种方法包括将比特流编码成多个码字。 对于多个码字的每个码字，生成表示相应码字的多个数据符号。 相应码字的每个数据符号将相应码字的一个或多个比特编码为载波的一个或多个调制特性。 该方法还包括一个或多个处理器将多个码字中的至少一个码字的至少一个码字的至少一个子集的每个数据符号扩展到多个层中，使得每个层包括相应数据符号的一部分。 由多个层指示的信息被发送到收发器。

公开(公告)号：US20120218911A1

公开(公告)日：2012-08-30

申请号：US13362748

申请日：2012-01-31

申请人： Chenxi Zhu ,  Timothy James Moulsley

发明人： Chenxi Zhu ,  Timothy James Moulsley

IPC分类号： H04W24/00 ,  H04L12/26 ,  H04W72/04

CPC分类号： H04B7/024 ,  H04B7/061

摘要： According to one embodiment, a method includes establishing a plurality of wired connections between a base station and a plurality of geographically distributed remote transceivers. Each remote transceiver of the plurality of remote transceivers has one or more physical antenna ports. The plurality of remote transceivers are assigned to a plurality of sets where each set has one or more of the plurality of remote transceivers. One or more logical ports is assigned to each set of the plurality of sets. Each logical port of a set corresponds to at least one physical antenna port of the one or more remote transceivers of the respective set. Data traffic is sent from the base station to the endpoint using at least one wireless connection between the endpoint and at least one physical antenna port of the one or more remote transceivers of a first set of the plurality of sets.

摘要翻译： 根据一个实施例，一种方法包括在基站和多个地理分布式远程收发器之间建立多个有线连接。 多个远程收发器的每个远程收发器具有一个或多个物理天线端口。 多个远程收发器被分配给多个集合，其中每个集合具有多个远程收发器中的一个或多个。 一个或多个逻辑端口被分配给多个集合的每一组。 集合的每个逻辑端口对应于相应集合的一个或多个远程收发器的至少一个物理天线端口。 使用端点与多个集合的第一组中的一个或多个远程收发器的至少一个物理天线端口之间的至少一个无线连接，从基站向终端发送数据业务。

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。