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1. 发明申请

US20090312027A1 METHOD FOR ADAPTIVE FORMATION OF CELL CLUSTERS FOR CELLULAR WIRELESS NETWORKS WITH COORDINATED TRANSMISSION AND RECEPTION 有权
标题翻译：用于协调形成细胞集群的方法，用于协调传输和接收的无线网络
公开(公告)号：US20090312027A1
公开(公告)日：2009-12-17
申请号：US12140537
申请日：2008-06-17
申请人： G. J. Foschini , Howard C. Huang , Angel Lozano , Reinaldo Valenzuela , Sivarama Venkatesan
发明人： G. J. Foschini , Howard C. Huang , Angel Lozano , Reinaldo Valenzuela , Sivarama Venkatesan
IPC分类号： H04Q7/20
CPC分类号： H04W24/02 , H04W16/02
摘要： The present invention provides a method of forming clusters of cells in a wireless communication system. The method includes accessing information generated by measuring channel conditions for at least one mobile unit and a plurality of cells in the wireless communication system. The method also includes adding more than one of the plurality of cells to at least one cell cluster based on the accessed information and coordinating communication between the cells in each cell cluster and the mobile unit(s).
摘要翻译：本发明提供一种在无线通信系统中形成小区簇的方法。该方法包括访问通过测量无线通信系统中的至少一个移动单元和多个小区的信道条件而生成的信息。该方法还包括基于所访问的信息将多于一个小区的多个小区添加到至少一个小区群集，并协调每个小区群集中的小区与移动单元之间的通信。

2. 发明授权

US09241276B2 Method for adaptive formation of cell clusters for cellular wireless networks with coordinated transmission and reception 有权
标题翻译：用于具有协调发送和接收的蜂窝无线网络的小区簇的自适应形成的方法
公开(公告)号：US09241276B2
公开(公告)日：2016-01-19
申请号：US12140537
申请日：2008-06-17
申请人： G. J. Foschini , Howard C. Huang , Angel Lozano , Reinaldo Valenzuela , Sivarama Venkatesan
发明人： G. J. Foschini , Howard C. Huang , Angel Lozano , Reinaldo Valenzuela , Sivarama Venkatesan
IPC分类号： H04W4/00 , H04W24/02 , H04W16/02
CPC分类号： H04W24/02 , H04W16/02
摘要： The present invention provides a method of forming clusters of cells in a wireless communication system. The method includes accessing information generated by measuring channel conditions for at least one mobile unit and a plurality of cells in the wireless communication system. The method also includes adding more than one of the plurality of cells to at least one cell cluster based on the accessed information and coordinating communication between the cells in each cell cluster and the mobile unit(s).
摘要翻译：本发明提供一种在无线通信系统中形成小区簇的方法。该方法包括访问通过测量无线通信系统中的至少一个移动单元和多个小区的信道条件而生成的信息。该方法还包括基于所访问的信息将多于一个小区的多个小区添加到至少一个小区群集，并协调每个小区群集中的小区与移动单元之间的通信。

3. 发明授权

US09240909B2 Reverse link channel estimation using common and dedicated pilot channels 有权
标题翻译：使用公共和专用导频信道的反向链路信道估计
公开(公告)号：US09240909B2
公开(公告)日：2016-01-19
申请号：US12019381
申请日：2008-01-24
申请人： Angel Lozano , Sivarama Venkatesan
发明人： Angel Lozano , Sivarama Venkatesan
IPC分类号： H04B1/60 , H04L25/02 , H04L5/00
CPC分类号： H04L25/0226 , H04L5/005 , H04L5/0051
摘要： The present invention provides a method of channel estimation implemented in a receiver having multiple antennas configured to receive at least one common pilot available to a plurality of users and a plurality of dedicated pilots. Each dedicated pilot is allocated to one of the plurality of users. The method includes estimating at least one first channel associated with a first user and at least one second channel associated with a second user based on observations of the plurality of dedicated pilots and of said at least one common pilot.
摘要翻译：本发明提供一种在具有多个天线的接收机中实现的信道估计方法，所述多个天线被配置为接收可用于多个用户和多个专用导频的至少一个公共导频。每个专用导频被分配给多个用户之一。该方法包括基于多个专用导频和所述至少一个公共导频的观测来估计与第一用户相关联的至少一个第一信道和与第二用户相关联的至少一个第二信道。

4. 发明申请

US20090203310A1 SUPERPOSITION TRANSMISSION AND DETECTION OF ACCESS AND BACKHAUL SIGNALS 审中-公开
标题翻译：监督传输和检测访问和反向信号
公开(公告)号：US20090203310A1
公开(公告)日：2009-08-13
申请号：US12029835
申请日：2008-02-12
申请人： Angel Lozano , Reinaldo Valenzuela
发明人： Angel Lozano , Reinaldo Valenzuela
IPC分类号： H04B7/15
CPC分类号： H04B7/155
摘要： According to one embodiment of the invention, a wireless communication system (WCS) has a wireless relay and a base station adapted to process wireless access traffic for one or more mobile terminals (MTs) and to process wireless backhaul traffic. The wireless relay is adapted to generate a superimposed signal having a backhaul component intended for the base station and an access component intended for one of the MTs. The wireless relay is further adapted to allocate power between the backhaul and access components based on signal propagation conditions between itself, the base station, and the MT to render the backhaul component decodable at the base station and the access component decodable at the MT.
摘要翻译：根据本发明的一个实施例，无线通信系统（WCS）具有无线中继和适于处理一个或多个移动终端（MT）的无线接入业务并且处理无线回程业务的基站。无线中继器适于产生具有用于基站的回程分量和用于MT之一的接入组件的叠加信号。无线中继还适于基于本身，基站和MT之间的信号传播条件在回程和接入组件之间分配功率，以使得能够在基站处解码的回程分量和可在MT处解码的接入组件。

5. 发明授权

US08634481B1 Feedback technique for wireless systems with multiple transmit and receive antennas 有权
标题翻译：具有多个发射和接收天线的无线系统的反馈技术
公开(公告)号：US08634481B1
公开(公告)日：2014-01-21
申请号：US09714084
申请日：2000-11-16
申请人： Seong-Taek Chung , Howard C Huang , Angel Lozano
发明人： Seong-Taek Chung , Howard C Huang , Angel Lozano
IPC分类号： H04L27/00
CPC分类号： H04L1/0019 , H04B7/0619 , H04L1/0003 , H04L1/0009 , H04L1/0025 , H04L25/0204 , H04L2001/0096 , H04W52/26 , H04W52/50
摘要： In a wireless communication system using multiple antennas at the transmitter and multiple antennas at the receiver, a so called multiple-input multiple-output (MIMO) system, a substantial improvement in capacity over the case of no feedback can be achieved using considerably less bandwidth than is required to feedback the channel estimate or channel statistics, by supplying as feedback for each data substream of an overall data stream an indicator of a rate and/or an indicator of a gain for transmission of that data substream. The indicator of the rate and/or the indicator of the gain may be the rate and/or gain directly or an encoded representation of the rate and/or gain. Typically, the best performance is achieved if indicators of both the rate and the gain are fed back. If the invention is implemented for wireless systems, then typically for each data substream there is a separate, independent antenna. The rate and the gain are computed as a function of a channel estimate which is developed at the receiver. Advantageously, the transmitter may employ only one-dimensional data coding for each of the data substreams.
摘要翻译：在发射机使用多个天线的无线通信系统中，在接收机处使用多个天线，即所谓的多输入多输出（MIMO）系统，在无反馈的情况下，可以实现相当少的带宽比通过为整个数据流的每个数据子流的反馈提供用于传输该数据子流的速率和/或增益的指示符的指示符来反馈信道估计或信道统计。速率和/或增益指示符的指示符可以是直接的速率和/或增益或速率和/或增益的编码表示。通常情况下，如果速率和增益的指标反馈都能达到最佳性能。如果为无线系统实现本发明，则通常对于每个数据子流，存在单独的独立天线。速率和增益被计算为在接收机处开发的信道估计的函数。有利地，发射机可以仅对数据子流中的每一个采用一维数据编码。

6. 发明授权

US07489944B2 Method of allocating power over channels of a communication system 有权
标题翻译：在通信系统的信道上分配电力的方法
公开(公告)号：US07489944B2
公开(公告)日：2009-02-10
申请号：US11141065
申请日：2005-06-01
申请人： Angel Lozano , Antonia Maria Tulino , Sergio Verdu
发明人： Angel Lozano , Antonia Maria Tulino , Sergio Verdu
IPC分类号： H04B7/00
CPC分类号： H04W52/346 , H04L27/2602 , H04W52/245 , H04W72/0473
摘要： In one embodiment, the power for transmitting signals over at least one of a plurality of parallel channels is allocated based on a channel strength threshold and an estimated channel strength for the at least one channel. Here, the channel strength threshold is based on the estimated channel strengths for the plurality of channels.
摘要翻译：在一个实施例中，基于对于至少一个信道的信道强度阈值和估计的信道强度来分配用于通过多个并行信道中的至少一个传输信号的功率。这里，信道强度阈值基于多个信道的估计信道强度。

7. 发明授权

US07113558B2 Space-time processing for wireless systems with multiple transmit and receive antennas 有权
标题翻译：具有多个发射和接收天线的无线系统的时空处理
公开(公告)号：US07113558B2
公开(公告)日：2006-09-26
申请号：US10842857
申请日：2004-05-11
申请人： Angel Lozano , Farrokh Rashid-Farrokhi , Reinaldo A Valenzuela
发明人： Angel Lozano , Farrokh Rashid-Farrokhi , Reinaldo A Valenzuela
IPC分类号： H04L1/02
CPC分类号： H04B7/0634 , H04B7/0626 , H04B7/065 , H04B7/0697 , H04B7/0837
摘要： Signals are developed for use in a wireless system with multiple transmit and multiple receive antennas so that even in the face of some correlation the most open-loop capacity that can be achieved using a substantially open-loop system with a channel of that level of correlation is obtained. In accordance with the principles of the invention, the signals transmitted from the various antennas are processed so as to improve their ability to convey the maximum amount of information. More specifically, the data to be transmitted is divided into M+1 substreams, where M is the number of transmit antennas. Each transmit antenna is supplied with a combination signal that is made up of a weighted version of a common one of the substreams and a weighted version of a respective one of the substreams that is supplied uniquely for that antenna, so that there are M transmit signals. A receiver having N antennas receives the M transmit signals as combined by the channel and reconstitutes the original data therefrom. This may be achieved using successive decoding techniques. Advantageously, the capacity, i.e., the rate of information that can be conveyed with an arbitrarily small probability of error when the instantaneous forward channel condition is unknown to the transmitter, is maximized.
摘要翻译：信号被开发用于具有多个发射和多个接收天线的无线系统中，使得即使在某些相关性的情况下，也可以使用具有该相关级别的信道的基本开环系统来实现最大的开环容量获得。根据本发明的原理，对从各种天线发射的信号进行处理，以提高它们传达最大信息量的能力。更具体地，要发送的数据被划分为M + 1个子流，其中M是发射天线的数量。每个发射天线被提供有组合信号，该组合信号由子流中的公共一个的加权版本和为该天线唯一提供的子流中的相应一个的加权版本组成，使得存在M个发射信号。具有N个天线的接收机接收通过信道组合的M个发射信号并从其重构原始数据。这可以使用连续的解码技术来实现。有利地，当瞬时正向信道条件对于发射机是未知的时，容量，即可以以任意小的误差概率传送的信息的速率被最大化。

8. 发明授权

US06888809B1 Space-time processing for multiple-input, multiple-output, wireless systems 有权
标题翻译：多输入多输出无线系统的时空处理
公开(公告)号：US06888809B1
公开(公告)日：2005-05-03
申请号：US09482429
申请日：2000-01-13
申请人： Gerard Joseph Foschini , Angel Lozano , Farrokh Rashid-Farrokhi , Reinaldo A. Valenzuela
发明人： Gerard Joseph Foschini , Angel Lozano , Farrokh Rashid-Farrokhi , Reinaldo A. Valenzuela
IPC分类号： H04J3/00 , H04B1/04 , H04B1/10 , H04B1/18 , H04B7/06 , H04B7/08 , H04Q7/00
CPC分类号： H04B7/0634 , H04B7/0626
摘要： In a MIMO system the signals transmitted from the various antennas are processed so as to improve the ability of the receiver to extract them from the received signal even in the face of some correlation. More specifically the number of bit streams that is transmitted simultaneously is adjusted, e.g., reduced, depending on the level of correlation, while multiple versions of each bit stream, variously weighted, are transmitted simultaneously. The variously weighted versions are combined to produced one combined weighted signal. The receiver processes the received signals in the same manner as it would have had all the signals reaching the receive antennas been uncorrelated. The weight vectors may be determined by the forward channel transmitter using the channel properties of the forward link which are made known to the transmitter of the forward link by being transmitted from the receiver of the forward link by the transmitter of the reverse link or the weight vectors may be determined by the forward channel transmitter using the channel properties of the forward link and the determined weight vectors are made known to the transmitter of the forward link by being transmitted from the receiver of the forward link by the transmitter of the reverse link. The channel properties used to determine the weight vectors may include the channel response from the transmitter to the receiver and the covariance matrix of noise and interference measured at the receiver.
摘要翻译：在MIMO系统中，处理从各种天线发送的信号，以便即使面对一些相关性，也可以提高接收机从接收信号中提取它们的能力。更具体地，根据相关级别来调整，例如减少同时传输的比特流的数量，同时传输各种加密的每个比特流的多个版本。将各种加权版本组合以产生一个组合加权信号。接收机以与所有到达接收天线的所有信号不相关的相同方式处理接收到的信号。加权向量可以由正向信道发射机使用正向链路的信道属性来确定，前向链路的信道属性是由前向链路的发射机通过反向链路的发射机从前向链路的接收机发送的，向量可以由正向信道发射机使用前向链路的信道特性来确定，所确定的权重向量通过从反向链路的发射机从前向链路的接收机发送到前向链路的发射机。用于确定权重向量的信道属性可以包括从发射机到接收机的信道响应以及在接收机处测量的噪声和干扰的协方差矩阵。

9. 发明授权

US07747285B2 Method of transmit beamforming for multicasting in a wireless communication system 有权
标题翻译：用于在无线通信系统中组播的发射波束成形的方法
公开(公告)号：US07747285B2
公开(公告)日：2010-06-29
申请号：US11776046
申请日：2007-07-11
申请人： Angel Lozano
发明人： Angel Lozano
IPC分类号： H04M1/00
CPC分类号： H04B7/0619 , H04B7/0617
摘要： The present invention provides a method of determining a plurality of beamforming weights for application to multicast transmission to a plurality of users by a corresponding plurality of antennas associated with a base station. One embodiment of the method includes determining a covariance matrix associated with the plurality of users. The covariance matrix is determined based on a channel matrix and a noise-plus-interference vector associated with each user. The method also includes determining the plurality of beamforming weights based on a gradient of the covariance matrix associated with a selected one of the plurality of users and storing the plurality of beamforming weights.
摘要翻译：本发明提供了一种确定多个波束形成权重的方法，用于通过与基站相关联的相应多个天线应用于向多个用户的多播传输。该方法的一个实施例包括确定与多个用户相关联的协方差矩阵。基于与每个用户相关联的信道矩阵和噪声加干扰向量来确定协方差矩阵。该方法还包括基于与多个用户中的所选择的一个相关联的协方差矩阵的梯度来确定多个波束形成权重并存储多个波束成形权重。

10. 发明授权

US06920118B2 Method and apparatus for communicating heterogeneous data traffic 失效
标题翻译：用于传送异构数据流量的方法和装置
公开(公告)号：US06920118B2
公开(公告)日：2005-07-19
申请号：US09742669
申请日：2000-12-20
申请人： Angel Lozano
发明人： Angel Lozano
IPC分类号： H04B7/26 , H04J13/16 , H04L12/56 , H04W24/00 , H04W28/22 , H04J7/204 , H04J3/00 , H04Q7/00
CPC分类号： H04J13/16 , H04B7/2618 , H04W24/00 , H04W28/22
摘要： Method and apparatus for communicating heterogeneous data traffic simultaneously using a hybrid Code Division Multiplexing (CDM)/Code Division Multiple Access (CDMA)-Time Division Multiplexing (TDM)/Time Division Multiple Access (TDMA) system which communicates data on a per data type basis, rather than a per user or per channel basis. A transmitter accepts a plurality of data streams, each of which includes either Constant Bit Rate Data (CBR) or Variable Burst Rate Data (VBR), where CBR is characterized by a steady data rate and strict latency requirements and VBR is characterized by a variable data rate with large peaks and lulls and loose latency requirements. The system identifies each input data stream as CBR or VBR. CBR data is spread using CDM/CDMA with an appropriate spreading factor for CBR, whereas VBR data is modulated/encoded and interleaved with CDM/CDMA with an appropriate spreading factor for VBR and TDM/TDMA, respectively. The modulated CBR data and VBR data streams are then transmitted by the transmitter to a receiver, which receives and demodulates the received data streams to recover the original CBR data and VBR data streams. By communicating input data streams based on whether they include CBR data or VBR data, the communication system is able to communicate CBR data and VBR data simultaneously while achieving a superior Quality-of-Service.
摘要翻译：用于使用混合码分多路复用（CDM）/码分多址（CDMA） - 时分多路复用（TDM）/时分多址（TDMA）系统来传输异构数据业务的方法和装置，其中每个数据类型传送数据而不是每个用户或每个渠道的基础。发射机接收多个数据流，每个数据流包括恒定比特率数据（CBR）或可变突发速率数据（Variable Burst Rate Data，VBR），其中CBR的特征在于稳定的数据速率和严格的等待时间要求，VBR由变量数据速率大，峰值高，延迟时间短。系统将每个输入数据流标识为CBR或VBR。 CBR数据利用适用于CBR的扩频因子的CDM / CDMA进行扩展，而VBR数据被分别用适用于VBR和TDM / TDMA的扩频因子的CDM / CDMA进行调制/编码和交织。调制的CBR数据和VBR数据流然后由发射机发射到接收机，接收机接收和解调接收到的数据流，以恢复原始的CBR数据和VBR数据流。通过基于它们是否包括CBR数据或VBR数据来传送输入数据流，通信系统能够同时传送CBR数据和VBR数据，同时实现卓越的服务质量。

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