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1. 发明授权

US09374749B2 Methods and systems using same base station carrier handoff for multicarrier support 有权
标题翻译：使用相同的基站载波切换多载波支持的方法和系统
公开(公告)号：US09374749B2
公开(公告)日：2016-06-21
申请号：US12396448
申请日：2009-03-02
申请人： Miguel Griot , Ayman F. Naguib
发明人： Miguel Griot , Ayman F. Naguib
IPC分类号： H04W36/06 , H04L5/00 , H04W36/38
CPC分类号： H04W36/06 , H04L5/0007 , H04L5/0096 , H04W36/38
摘要： Certain embodiments of the present disclosure provide a method for switching radio frequency (RF) carriers that serve communication between a base station (BS) and a mobile station (MS). The switching of carriers can be viewed as a handoff procedure between two different RF carriers within the same BS. A simplified handoff procedure for switching of RF carriers can be applied when the MS switches its physical connection from a primary RF carrier to a secondary RF carrier, as well as in the case when the BS decides to move the MS from one primary RF carrier to another primary RF carrier.
摘要翻译：本公开的某些实施例提供了一种用于切换服务于基站（BS）和移动台（MS）之间的通信的射频（RF）载波的方法。载波的切换可以被看作是在同一BS内的两个不同RF载波之间的切换过程。当MS将其物理连接从主RF载波切换到次RF载波时，以及在BS决定将MS从一个主RF载波移动到另一主RF载波的情况下，可以应用用于RF载波切换的简化切换过程另一个主要的射频载波。

2. 发明申请

US20120147987A1 METHOD AND APPARATUS FOR DATA TRANSMISSION USING MULTIPLE TRANSMIT ANTENNAS 有权
标题翻译：使用多个发射天线进行数据传输的方法和装置
公开(公告)号：US20120147987A1
公开(公告)日：2012-06-14
申请号：US13315125
申请日：2011-12-08
申请人： Arthur Robert Calderbank , Ayman F. Naguib , Nambirajan Seshadri , Vahid Tarokh
发明人： Arthur Robert Calderbank , Ayman F. Naguib , Nambirajan Seshadri , Vahid Tarokh
IPC分类号： H04B7/02
CPC分类号： H04L1/0625 , A01K2217/075 , C07K14/78 , H04B7/0669 , H04B7/0671 , H04B7/0891 , H04L1/0041 , H04L1/0054 , H04L1/0057 , H04L1/0065 , H04L1/0071 , H04L1/0618 , H04L27/20
摘要： A method and apparatus for increasing the data rate and providing antenna diversity using multiple transmit antennas is disclosed. A set of bits of a digital signal are used to generate a codeword. Codewords are provided according to a channel code. Delay elements may be provided in antenna output channels, or with suitable code construction delay may be omitted. n signals represent n symbols of a codeword are transmitted with n different transmit antennas. At the receiver MSLE or other decoding is used to decode the noisy received sequence. The parallel transmission and channel coding enables an increase the data rate over previous techniques, and recovery even under fading conditions. The channel coding may be concatenated with error correction codes under appropriate conditions.
摘要翻译：公开了一种用于增加数据速率并使用多个发射天线提供天线分集的方法和装置。使用数字信号的一组位来产生码字。代码字根据通道代码提供。可以在天线输出通道中提供延迟元件，或者可以省略适当的代码结构延迟。 n个信号表示用n个不同的发射天线发送码字的n个符号。在接收机MSLE或其他解码用于解码噪声接收序列。并行传输和信道编码能够提高数据速率与以前的技术相同，即使在衰落条件下也能恢复数据速率。信道编码可以在适当的条件下与纠错码连接。

3. 发明授权

US6127971A Combined array processing and space-time coding 失效
标题翻译：组合阵列处理和时空编码
公开(公告)号：US6127971A
公开(公告)日：2000-10-03
申请号：US114838
申请日：1998-07-14
申请人： Arthur Robert Calderbank , Ayman F. Naguib
发明人： Arthur Robert Calderbank , Ayman F. Naguib
IPC分类号： H04B7/06 , H04B7/08 , H04L1/06 , H01Q3/26 , H04B1/10 , H04B14/04 , H04B15/00
CPC分类号： H04L1/0618 , H04B7/0669 , H04B7/086 , H04B7/0848
摘要： Enhanced performance is realized in a wireless transmission arrangement that is subject to fading by employing a perspective that combines array signal processing with channel coding. Specifically, in accordance with our invention, antennas at the transmitter are partitioned into small groups, and individual space-time codes are used to transmit information from each group of antennas. At the receiver, an individual space-time code is decoded by a linear array processing technique that suppresses signals transmitted by other groups of antennas by treating them as interference.
摘要翻译：通过采用组合阵列信号处理与信道编码的透视图，可以实现衰减衰落的无线传输装置的增强性能。具体地，根据本发明，发射机的天线被划分为小组，并且使用各个时空码来从每组天线发送信息。在接收机处，通过线性阵列处理技术解码单个时空码，通过将它们视为干扰来抑制由其他天线组发送的信号。

4. 发明授权

US6088408A Decoding for generalized orthogonal designs for space-time codes for wireless communication 有权
标题翻译：解码用于无线通信的时空码的广义正交设计
公开(公告)号：US6088408A
公开(公告)日：2000-07-11
申请号：US186907
申请日：1998-11-06
申请人： Arthur R. Calderbank , Hamid Jafarkhani , Ayman F. Naguib , Nambirajan Seshadri , Vahid Tarokh
发明人： Arthur R. Calderbank , Hamid Jafarkhani , Ayman F. Naguib , Nambirajan Seshadri , Vahid Tarokh
IPC分类号： H04B7/06 , H04B7/08 , H04L1/06 , H04L27/06
CPC分类号： H04L1/0618 , H04B7/0669 , H04B7/0845
摘要： The prior art teachings for encoding signals and transmitting them over a plurality of antennas are advanced by disclosing a method for encoding for any number of transmitting antennas. Also disclosed is a generalized approach for maximum likelihood decoding where a decision rule is formed for all of the transmitting antennas of a transmitter, and a decision is made in favor of the transmitted symbols the minimize the equation ##EQU1## r.sub.t.sup.j is the signal received at time interval t, at receiving antenna j,h*.sub..epsilon..sbsb.t.sub.(i)j is the complex conjugate of the channel transfer function between the transmitter antenna that is transmitting symbol c.sub.i and receiving antenna j, and.delta..sub.t (i) is the sign of symbol c.sub.i in time interval t.
摘要翻译：通过公开用于编码任何数量的发射天线的方法，提出了用于对信号进行编码并通过多个天线发射它们的现有技术。还公开了一种用于最大似然解码的广义方法，其中为发射机的所有发射天线形成决策规则，并且做出有利于所发送的符号的决定使得等式rtj是在时间间隔t接收的信号在接收天线j处，h * epsilon（i）j是传输符号ci和接收天线j的发射机天线之间的信道传递函数的复共轭，并且delta t（i）是符号ci的符号时间间隔t。

5. 发明授权

US08724749B2 CDMA wireless systems 有权
标题翻译： CDMA无线系统
公开(公告)号：US08724749B2
公开(公告)日：2014-05-13
申请号：US12605837
申请日：2009-10-26
申请人： Ayman F. Naguib
发明人： Ayman F. Naguib
IPC分类号： H03D1/04
CPC分类号： H04B1/71072 , H04B7/0615 , H04B7/0669 , H04B7/0697 , H04L1/0618 , H04L1/0631 , H04L1/0643
摘要： Information symbols are transmitted simultaneously on independent streams using the same spreading code but from different transmit antennas at the transmitter. These simultaneous data stream could be intended for the same user (and thereby the data rate for any particular user can be increased) or for different users (thereby increasing the system capacity). Each stream of data can belong to a different signal constellation and use a different channel code. At the receiver, a number of receive antennas equal to at least the number of multiple data streams is used to separate the different data streams. We consider two different cases. The first one when no transmit diversity is used (this case can also include the case when transmit diversity with simple antenna weighting is used) and the second when transmit diversity with space-time block coding is used.
摘要翻译：在独立流上使用相同的扩展码同时发送信息符号，但是在发射机处不同的发射天线。这些同时的数据流可以用于相同的用户（并且因此可以增加任何特定用户的数据速率）或者针对不同的用户（从而增加系统容量）。数据流可以属于不同的信号星座并使用不同的信道码。在接收机处，使用等于至少多个数据流的数量的多个接收天线来分离不同的数据流。我们考虑两种不同的情况。当不使用发射分集时，第一种（这种情况也可以包括使用简单天线加权的发射分集的情况），而当使用具有空时块编码的发射分集时的情况。

6. 发明授权

US08155177B2 Equalization of transmit diversity space-time coded signals 有权
标题翻译：发射分集时空编码信号的均衡
公开(公告)号：US08155177B2
公开(公告)日：2012-04-10
申请号：US12317437
申请日：2008-12-23
申请人： Ayman F Naguib , Arthur R Calderbank
发明人： Ayman F Naguib , Arthur R Calderbank
IPC分类号： H03H7/30 , H03H7/40 , H03K5/159
CPC分类号： H04L25/03331 , H04L1/0618 , H04L25/03299
摘要： In connection with transmitted space-time, trellis encoded, signals that pass through a transmission channel that is characterized by memory, improved performance is realized with a receiver that combines a decoder with an equalizer that selects the trellis transition, s, that minimizes the metric ξ j ⁡ ( k ) =  r ⁡ ( k ) - ∑ l = 0 L 1 ⁢ h ~ j ⁡ ( l ) ⁢ s ~ ⁡ ( k - l ) - ∑ l = L 1 + 1 L + 1 ⁢ h ~ j ⁡ ( l ) ⁢ s ^ ⁡ ( k - l )  2 where {tilde over (h)}j(l) is related to both the transmission channel and to the encoding structure in the transmitter, {tilde over (s)}(k) are the (trial) symbols according to a certain transition and ŝ(k) are the symbols that were previously decided.
摘要翻译：结合传输的时空，网格编码，通过由存储器表征的传输信道的信号，改进的性能是通过将解码器与均衡器组合的接收机来实现的，所述均衡器选择最小化度量的网格转换＆xgr ⁡（k）=r⁡（k） - Σl = 0 L 1 h〜j⁡（l）s〜⁡（k-1） - Σl = L 1 + 1 L + 1 h〜其中{tilde over（h）} j（1）与传输信道和发射机中的编码结构都有关，{ti = }（k）是根据某个转换的（试验）符号，ŝ（k）是先前决定的符号。

7. 发明授权

US06889355B1 Method and apparatus for data transmission using multiple transmit antennas 有权
公开(公告)号：US06889355B1
公开(公告)日：2005-05-03
申请号：US09545791
申请日：2000-04-07
申请人： Arthur Robert Calderbank , Ayman F. Naguib , Nambirajan Seshadri , Vahid Tarokh
发明人： Arthur Robert Calderbank , Ayman F. Naguib , Nambirajan Seshadri , Vahid Tarokh
IPC分类号： H03M13/15 , C07K14/78 , C12N15/85 , H04B7/005 , H04B7/06 , H04B7/08 , H04L1/00 , H04L1/06 , H04L27/18 , H04L27/20 , H03M13/03
CPC分类号： H04L1/0625 , A01K2217/075 , C07K14/78 , H04B7/0669 , H04B7/0671 , H04B7/0891 , H04L1/0041 , H04L1/0054 , H04L1/0057 , H04L1/0065 , H04L1/0071 , H04L1/0618 , H04L27/20
摘要： A method and apparatus for increasing the data rate and providing antenna diversity using multiple transmit antennas is disclosed. A set of bits of a digital signal are used to generate a codeword. Codewords are provided according to a channel code. Delay elements may be provided in antenna output channels, or with suitable code construction delay may be omitted. n signals represent n symbols of a codeword are transmitted with n different transmit antennas. At the receiver MLSE or other decoding is used to decode the noisy received sequence. The parallel transmission and channel coding enables an increase the data rate over previous techniques, and recovery even under fading conditions. The channel coding may be concatenated with error correction codes under appropriate conditions.

8. 发明授权

US08265186B2 Minimum mean squared error approach to interference cancellation and maximum likelihood decoding of space-time block codes 有权
公开(公告)号：US08265186B2
公开(公告)日：2012-09-11
申请号：US12568863
申请日：2009-09-29
申请人： Ayman F. Naguib , Nambirajan Seshadri
发明人： Ayman F. Naguib , Nambirajan Seshadri
IPC分类号： H04B7/02
摘要： Block-encoded transmissions of a multi-antenna terminal unit are effectively detected in the presence of co-channel interfering transmissions when the base station has a plurality of antennas, and interference cancellation is combined with maximum likelihood decoding. More specifically, the signals received at the base station antennas are combined in a linear combination that relates to the channel coefficients between the various transmitting terminal units and the base antennas. By selecting proper coefficients for the linear combination and choosing probable transmitted signals that minimize a minimum mean squared error function, the signals of the various terminal units are canceled when detecting the signal of a particular unit. In another embodiment of the invention, the basic approach is used to obtain an initial estimate of the signals transmitted by one terminal unit, and the contribution of those signals is removed from the received signals prior to detecting the signals of other terminal units. In still another embodiment, the decoding process is repeated at least twice by detecting the signals of the terminal units in a different order, and selecting the detections that produce the lowest uncertainty measure. The disclosed techniques are viable for any number K of terminal units transmitting concurrently over a given channel, where each terminal unit is using a space-time block code with N transmit antennas, and a base station has at least K receive antennas.

9. 发明授权

US07620128B2 Minimum mean squared error approach to interference cancellation and maximum likelihood decoding of space-time block codes 失效
标题翻译：干扰消除的最小均方误差方法和空时块码的最大似然解码
公开(公告)号：US07620128B2
公开(公告)日：2009-11-17
申请号：US10778589
申请日：2004-02-13
申请人： Ayman F. Naguib , Nambirajan Seshadri
发明人： Ayman F. Naguib , Nambirajan Seshadri
IPC分类号： H04L27/06
CPC分类号： H04L1/0618 , H04B1/71055 , H04B1/71057 , H04B7/0669 , H04B7/0891 , H04L1/08
摘要： Block-encoded transmissions of a multi-antenna terminal unit are effectively detected in the presence of co-channel interfering transmissions when the base station has a plurality of antennas, and interference cancellation is combined with maximum likelihood decoding. More specifically, the signals received at the base station antennas are combined in a linear combination that relates to the channel coefficients between the various transmitting terminal units and the base antennas. By selecting proper coefficients for the linear combination and choosing probable transmitted signals that minimize a minimum mean squared error function, the signals of the various terminal units are canceled when detecting the signal of a particular unit. In another embodiment of the invention, the basic approach is used to obtain an initial estimate of the signals transmitted by one terminal unit, and the contribution of those signals is removed from the received signals prior to detecting the signals of other terminal units. In still another embodiment, the decoding process is repeated at least twice by detecting the signals of the terminal units in a different order, and selecting the detections that produce the lowest uncertainty measure. The disclosed techniques are viable for any number K of terminal units transmitting concurrently over a given channel, where each terminal unit is using a space-time block code with N transmit antennas, and a base station has at least K receive antennas.
摘要翻译：当基站具有多个天线时，在存在同信道干扰传输的情况下有效地检测多天线终端单元的块编码的传输，并且将干扰消除与最大似然解码组合。更具体地，在基站天线处接收的信号以与各个发送终端单元和基站天线之间的信道系数相关的线性组合组合。通过选择线性组合的适当系数并选择最小化最小均方误差函数的可能发送信号，当检测到特定单元的信号时，各个终端单元的信号被消除。在本发明的另一个实施例中，基本方法用于获得由一个终端单元发送的信号的初始估计，并且在检测到其它终端单元的信号之前，从接收到的信号中去除这些信号的贡献。在另一个实施例中，通过以不同的顺序检测终端单元的信号，并且选择产生最低不确定性度量的检测，重复解码过程至少两次。所公开的技术对于在给定信道上同时发射的任何数量K的终端单元是可行的，其中每个终端单元正在使用具有N个发射天线的时空块码，并且基站具有至少K个接收天线。

10. 发明申请

US20090110104A1 Equalization of transmit diversity space-time coded signals 有权
公开(公告)号：US20090110104A1
公开(公告)日：2009-04-30
申请号：US12317437
申请日：2008-12-23
申请人： Ayman F. Naguib , Arthur R. Calderbank
发明人： Ayman F. Naguib , Arthur R. Calderbank
IPC分类号： H04L23/02
CPC分类号： H04L25/03331 , H04L1/0618 , H04L25/03299
摘要： In connection with transmitted space-time, trellis encoded, signals that pass through a transmission channel that is characterized by memory, improved performance is realized with a receiver that combines a decoder with an equalizer that selects the trellis transition, s, that minimizes the metric ξ j  ( k ) =  r  ( k ) - ∑ l = L 1 + 1 L 1   h ~ j  ( l )  s ~  ( k - l ) - ∑ l = L 1 + 1 L + 1   h ~ j  ( l )  s ^  ( k - l )  2 where {tilde over (h)}j(l) is related to both the transmission channel and to the encoding structure in the transmitter, {tilde over (s)}(k) are the (trial) symbols according to a certain transition and ŝ(k) are the symbols that were previously decided.

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