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1. 发明申请

US20090213904A1 METHOD AND APPARATUS FOR ORTHOGONALLY OVERLAYING VARIABLE CHIP RATE SPREAD SPECTRUM SIGNALS 审中-公开
标题翻译：用于正交覆盖可变速率传播频谱信号的方法和装置
公开(公告)号：US20090213904A1
公开(公告)日：2009-08-27
申请号：US12404251
申请日：2009-03-13
申请人： Feng-Wen Sun , Lin-Nan Lee , Khalid Karimullah
发明人： Feng-Wen Sun , Lin-Nan Lee , Khalid Karimullah
IPC分类号： H04B1/69 , H04B7/216 , H04B1/707
CPC分类号： H04B1/707 , H04J13/0048 , H04J13/18 , H04W52/26
摘要： A system and method for transmitting wideband signals via a radio communication system adapted for transmitting narrow-band signals is described. A base station is used to transmit and receive a plurality of relatively narrow-band and a plurality of relatively wideband signals. The electromagnetic spectrum available to the plurality of narrow-band signals is selectively shared with the electromagnetic spectrum available to the wideband signals by systematically separating the orthogonal codes and the carrier frequencies used for transmission. The prefixes of the orthogonal codes are preferably mutually exclusive and the carrier frequencies are preferably separated by an offset. The offset may be substantially equal to an integer multiple of the narrow-band signal's chip rate. Alternatively, the offset may be substantially equal to an odd multiple of one half the narrow-band signal's chip rate in which case every other bit of the orthogonally encoded data is inverted.
摘要翻译：描述了经由适于发送窄带信号的无线电通信系统发送宽带信号的系统和方法。基站用于发送和接收多个相对窄带和多个相对宽带的信号。可用于多个窄带信号的电磁频谱通过系统地分离用于传输的正交码和载波频率，与宽带信号可用的电磁频谱选择性共享。正交码的前缀优选地是互斥的，并且载波频率优选地被偏移分开。偏移量可以基本上等于窄带信号的码片速率的整数倍。或者，偏移可以基本上等于窄带信号的码片速率的一半的奇数倍，在这种情况下，正交编码数据的每隔一位被反转。

2. 发明申请

US20080285521A1 Method and apparatus for encoding data for transmission in a communication system 有权
标题翻译：用于在通信系统中编码用于传输的数据的方法和装置
公开(公告)号：US20080285521A1
公开(公告)日：2008-11-20
申请号：US11999561
申请日：2007-12-06
申请人： Feng-Wen Sun , Khalid Karimullah , Lin-Nan Lee
发明人： Feng-Wen Sun , Khalid Karimullah , Lin-Nan Lee
IPC分类号： H04J13/00 , H04Q7/00
CPC分类号： H04J13/004 , H04J13/0077 , H04W52/26
摘要： A method and apparatus for encoding data for transmission in a communication system provides increased efficiency in bandwidth utilization through higher data rates, lower error rates, lower power levels, and/or increased capacity. A set of orthogonal codes is partitioned into subsets. The data to be transmitted is partitioned into packets of bit sequences, each of which is mapped to an orthogonal code in an assigned subset. The number of members in a particular subset is determined by the relative transmission requirements of the data signal the subset will be used to encode.
摘要翻译：用于在通信系统中对用于传输的数据进行编码的方法和装置通过更高的数据速率，更低的误码率，更低的功率水平和/或增加的容量来提高带宽利用率。一组正交码被划分成子集。要发送的数据被划分成比特序列的分组，每个比特序列被映射到所分配的子集中的正交码。特定子集中的成员数量由子组将用于编码的数据信号的相对传输要求确定。

3. 发明授权

US07505440B2 Method and apparatus for orthogonally overlaying variable chip rate spread spectrum signals 有权
标题翻译：用于正交叠加可变码片速率扩频信号的方法和装置
公开(公告)号：US07505440B2
公开(公告)日：2009-03-17
申请号：US12009275
申请日：2008-01-17
申请人： Feng-Wen Sun , Lin-Nan Lee , Khalid Karimullah
发明人： Feng-Wen Sun , Lin-Nan Lee , Khalid Karimullah
IPC分类号： H04B7/216 , H04B1/02 , H04J11/00 , H04J13/00 , H04Q7/00
CPC分类号： H04B1/707 , H04J13/0048 , H04J13/18 , H04W52/26
摘要： A system and method for transmitting wideband signals via a radio communication system adapted for transmitting narrow-band signals is described. A base station is used to transmit and receive a plurality of relatively narrow-band and a plurality of relatively wideband signals. The electromagnetic spectrum available to the plurality of narrow-band signals is selectively shared with the electromagnetic spectrum available to the wideband signals by systematically separating the orthogonal codes and the carrier frequencies used for transmission. The prefixes of the orthogonal codes are preferably mutually exclusive and the carrier frequencies are preferably separated by an offset. The offset may be substantially equal to an integer multiple of the narrow-band signal's chip rate. Alternatively, the offset may be substantially equal to an odd multiple of one half the narrow-band signal's chip rate in which case every other bit of the orthogonally encoded data is inverted.
摘要翻译：描述了经由适于发送窄带信号的无线电通信系统发送宽带信号的系统和方法。基站用于发送和接收多个相对窄带和多个相对宽带的信号。可用于多个窄带信号的电磁频谱通过系统地分离用于传输的正交码和载波频率，与宽带信号可用的电磁频谱选择性共享。正交码的前缀优选地是互斥的，并且载波频率优选地被偏移分开。偏移量可以基本上等于窄带信号的码片速率的整数倍。或者，偏移可以基本上等于窄带信号的码片速率的一半的奇数倍，在这种情况下，正交编码数据的每隔一位被反转。

4. 发明授权

US07492749B2 Method and system for providing multi-input-multi-output (MIMO) downlink transmission 有权
标题翻译：提供多输入多输出（MIMO）下行链路传输的方法和系统
公开(公告)号：US07492749B2
公开(公告)日：2009-02-17
申请号：US10849101
申请日：2004-05-19
申请人： Jian Song , Khalid Karimullah
发明人： Jian Song , Khalid Karimullah
IPC分类号： H04B7/216
CPC分类号： H04B7/0626 , H04B7/04 , H04B7/0691 , H04B7/0851 , H04B7/0862 , H04L5/0007 , H04L5/0023 , H04L5/0028 , H04L5/006 , H04W52/34
摘要： An approach is provided for supporting transmission in a multi-input-multi-output (MIMO) communication system including a plurality of terminals. A preamble portion of a frame is transmitted by a multiple transmit antennas of a hub using Orthogonal Frequency Division Multiplexing (OFDM) to the terminals over a channel, wherein each of the terminals determines a characteristic of the channel with respect to the transmit antennas as feedback information. The hub receives the feedback information from the terminals. The hub selects, according to the feedback information, a subset of the antennas for transmission of a remaining portion of the frame to the terminal.
摘要翻译：提供了一种用于在包括多个终端的多输入多输出（MIMO）通信系统中支持传输的方法。帧的前导部分通过使用正交频分复用（OFDM）的集线器的多个发射天线通过信道发送到终端，其中每个终端相对于发射天线确定信道的特性作为反馈信息。集线器从终端接收反馈信息。集线器根据反馈信息选择用于将帧的剩余部分传输到终端的天线的子集。

5. 发明授权

US06178334B1 Cellular/PCS network with distributed-RF base station 有权
标题翻译：具有分布式射频基站的蜂窝/ PCS网络
公开(公告)号：US06178334B1
公开(公告)日：2001-01-23
申请号：US09193632
申请日：1998-11-17
申请人： Dong-Jye Shyy , Cathy Zatloukal , Khalid Karimullah
发明人： Dong-Jye Shyy , Cathy Zatloukal , Khalid Karimullah
IPC分类号： H04B701
CPC分类号： H04W88/085 , H04B7/2609 , H04B17/27
摘要： This disclosure relates to a communications network including a base station and two or more distributed cells which are remote from the base station. The cells are coupled to the base station by transmission mediums which may, for example, be cable, fiber, and/or air. Between the base station and each cell, there is a time delay or transmission time, between the time when a communication that is received at one of the two is transmitted to and is received by the other of the two. The time delays of the two cells are unique or distinct one from the other. The network includes a time responsive system which is responsive to the time delay for a communication between the base station and one of the cells. Since the time delays are distinctive, the time responsive system identifies the cell associated with the communication. The time delays of the cells may be inherent in the circuitry and transmission mediums between the base station and the cells. A time delay element also may be provided to modify the time delay of one or more of the cells, if the inherent time delays are not sufficiently distinct.
摘要翻译：本公开涉及包括基站和远离基站的两个或多个分布式小区的通信网络。这些小区通过传输介质耦合到基站，传输介质可以是例如电缆，光纤和/或空气。在基站和每个小区之间存在时间延迟或传输时间，其中在两者之一处接收的通信被发送到两者之一并由另一个接收。两个单元格的时间延迟是独一无二的。网络包括响应于基站与其中一个小区之间的通信的时间延迟的时间响应系统。由于时间延迟是独特的，因此时间响应系统识别与通信相关联的单元。小区的时间延迟在基站和小区之间的电路和传输介质中可能是固有的。如果固有的时间延迟没有足够的不同，也可以提供时间延迟元件来修改一个或多个单元的时间延迟。

6. 发明授权

US09467200B2 Method and apparatus for orthogonally overlaying variable chip rate spread spectrum signals 有权
公开(公告)号：US09467200B2
公开(公告)日：2016-10-11
申请号：US12404251
申请日：2009-03-13
申请人： Feng-Wen Sun , Lin-Nan Lee , Khalid Karimullah
发明人： Feng-Wen Sun , Lin-Nan Lee , Khalid Karimullah
IPC分类号： H04B1/707 , H04J13/00 , H04J13/18 , H04W52/26
CPC分类号： H04B1/707 , H04J13/0048 , H04J13/18 , H04W52/26
摘要： A system and method for transmitting wideband signals via a radio communication system adapted for transmitting narrow-band signals is described. A base station is used to transmit and receive a plurality of relatively narrow-band and a plurality of relatively wideband signals. The electromagnetic spectrum available to the plurality of narrow-band signals is selectively shared with the electromagnetic spectrum available to the wideband signals by systematically separating the orthogonal codes and the carrier frequencies used for transmission. The prefixes of the orthogonal codes are preferably mutually exclusive and the carrier frequencies are preferably separated by an offset. The offset may be substantially equal to an integer multiple of the narrow-band signal's chip rate. Alternatively, the offset may be substantially equal to an odd multiple of one half the narrow-band signal's chip rate in which case every other bit of the orthogonally encoded data is inverted.

7. 发明申请

US20120294266A1 METHOD AND SYSTEM FOR PROVIDING MULTI-INPUT-MULTI-OUTPUT (MIMO) DOWNLINK TRANSMISSION 有权
标题翻译：用于提供多输入多输出（MIMO）下行链路传输的方法和系统
公开(公告)号：US20120294266A1
公开(公告)日：2012-11-22
申请号：US13566701
申请日：2012-08-03
申请人： Jian Song , Khalid Karimullah
发明人： Jian Song , Khalid Karimullah
IPC分类号： H04W72/04 , H04W52/04
CPC分类号： H04B7/0626 , H04B7/04 , H04B7/0691 , H04B7/0851 , H04B7/0862 , H04L5/0007 , H04L5/0023 , H04L5/0028 , H04L5/006 , H04W52/34
摘要： An approach is provided for supporting transmission in a multi-input-multi-output (MIMO) communication system including a plurality of terminals. A preamble portion of a frame is transmitted by a multiple transmit antennas of a hub using Orthogonal Frequency Division Multiplexing (OFDM) to the terminals over a channel, wherein each of the terminals determines a characteristic of the channel with respect to the transmit antennas as feedback information. The hub receives the feedback information from the terminals. The hub selects, according to the feedback information, a subset of the antennas for transmission of a remaining portion of the frame to the terminal.
摘要翻译：提供了一种用于在包括多个终端的多输入多输出（MIMO）通信系统中支持传输的方法。帧的前导部分通过使用正交频分复用（OFDM）的集线器的多个发射天线通过信道发送到终端，其中每个终端相对于发射天线确定信道的特性作为反馈信息。集线器从终端接收反馈信息。集线器根据反馈信息选择用于将帧的剩余部分传输到终端的天线的子集。

8. 发明授权

US08243706B2 Method and system for providing multi-input-multi-output (MIMO) downlink transmission 有权
标题翻译：提供多输入多输出（MIMO）下行链路传输的方法和系统
公开(公告)号：US08243706B2
公开(公告)日：2012-08-14
申请号：US12363455
申请日：2009-01-30
申请人： Jian Song , Khalid Karimullah
发明人： Jian Song , Khalid Karimullah
IPC分类号： H04B7/216
CPC分类号： H04B7/0626 , H04B7/04 , H04B7/0691 , H04B7/0851 , H04B7/0862 , H04L5/0007 , H04L5/0023 , H04L5/0028 , H04L5/006 , H04W52/34
摘要： An approach is provided for supporting transmission in a multi-input-multi-output (MIMO) communication system including a plurality of terminals. A preamble portion of a frame is transmitted by a multiple transmit antennas of a hub using Orthogonal Frequency Division Multiplexing (OFDM) to the terminals over a channel, wherein each of the terminals determines a characteristic of the channel with respect to the transmit antennas as feedback information. The hub receives the feedback information from the terminals. The hub selects, according to the feedback information, a subset of the antennas for transmission of a remaining portion of the frame to the terminal.
摘要翻译：提供了一种用于在包括多个终端的多输入多输出（MIMO）通信系统中支持传输的方法。帧的前导部分通过使用正交频分复用（OFDM）的集线器的多个发射天线通过信道发送到终端，其中每个终端相对于发射天线确定信道的特性作为反馈信息。集线器从终端接收反馈信息。集线器根据反馈信息选择用于将帧的剩余部分传输到终端的天线的子集。

9. 发明授权

US08179781B2 Method and apparatus for encoding data for transmission in a communication system 有权
标题翻译：用于在通信系统中对用于传输的数据进行编码的方法和装置
公开(公告)号：US08179781B2
公开(公告)日：2012-05-15
申请号：US11999561
申请日：2007-12-06
申请人： Feng-Wen Sun , Khalid Karimullah , Lin-Nan Lee
发明人： Feng-Wen Sun , Khalid Karimullah , Lin-Nan Lee
IPC分类号： H04J11/00 , H04B3/20
CPC分类号： H04J13/004 , H04J13/0077 , H04W52/26
摘要： A method and apparatus for encoding data for transmission in a communication system provides increased efficiency in bandwidth utilization through higher data rates, lower error rates, lower power levels, and/or increased capacity. A set of orthogonal codes is partitioned into subsets. The data to be transmitted is partitioned into packets of bit sequences, each of which is mapped to an orthogonal code in an assigned subset. The number of members in a particular subset is determined by the relative transmission requirements of the data signal the subset will be used to encode.
摘要翻译：用于在通信系统中对用于传输的数据进行编码的方法和装置通过更高的数据速率，更低的误码率，更低的功率水平和/或增加的容量来提高带宽利用率。一组正交码被划分成子集。要发送的数据被划分成比特序列的分组，每个比特序列被映射到所分配的子集中的正交码。特定子集中的成员数量由子组将用于编码的数据信号的相对传输要求确定。

10. 发明授权

US5343493A Personal assistance system and method for use with a cellular communication system 失效
标题翻译：用于蜂窝通信系统的个人辅助系统和方法
公开(公告)号：US5343493A
公开(公告)日：1994-08-30
申请号：US33673
申请日：1993-03-16
申请人： Khalid Karimullah
发明人： Khalid Karimullah
IPC分类号： H04W4/22 , H04L27/30
CPC分类号： H04W4/22 , H04W76/007
摘要： A personal assistance system and method for use with a cellular communication system operating over a cellular communication band and having a plurality of cell-sites. A transceiver transmits to the cell-sites a spread spectrum burst of pulses including a service request codeword indicating a request for service from a service provider. A proxy cell-phone, coupled to a preferred one of the cell-sites, originates a cellular call on the cellular communication system to a destination number of the service provider and on behalf of the transceiver to thereby create a cellular communication link between the transceiver and the service provider. A transceiver location feature provides the service provider with the geographic location of the transceiver.
摘要翻译：一种用于在蜂窝通信频带上操作并且具有多个小区站点的蜂窝通信系统的个人辅助系统和方法。收发器向小区站点发送包括指示服务请求服务的服务请求码字的扩展频谱脉冲串。耦合到优选的一个小区站点的代理蜂窝电话将蜂窝通信系统上的蜂窝呼叫发送到服务提供商的目的地号码，并且代表收发机，从而在收发机之间创建蜂窝通信链路和服务提供商。收发器位置特征为服务提供商提供收发器的地理位置。

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