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1.发明授权Method and apparatus for achieving data rate variability in orthogonal spread spectrum communication systems 失效在正交扩频通信系统中实现数据速率变化的方法和装置公开(公告)号：US06366588B1
公开(公告)日：2002-04-02
申请号：US09032166
申请日：1998-02-27
IPC分类号： H04J316
CPC分类号： H04J13/0048 , H04J13/18
摘要： A CDMA communication system is disclosed offering a near continuum of data rates up to a maximum rate. The disclosed CDMA communication system increases the data rate variability, without disturbing the orthogonality between users. An increased number of data rates is obtained by time multiplexing the data rates achievable with conventional CDMA systems to provide additional data rates for various multimedia applications. If a user is assigned a specific orthogonal code sequence, such as a Walsh sequence, which permits a maximum data rate, nR, with conventional systems, the user can obtain additional desired data rates up to the maximum rate nR, by time multiplexing the specific orthogonal code set. Desired bit rates are achievable for applications requiring bit rates that are not an integer multiple of the rates provided by conventional techniques. A fundamental rate of R or “fat pipe” rates of powers-of-two multiples of the fundamental rate can be achieved in a conventional manner. A desired rate up to the maximum “fat pipe” rate is achieved by time multiplexing the codes wkn to achieve rates between R and nR, where wkn, denotes the first nth of the spread spectrum code wk. The transmitter of the present invention achieves a rate conversion to match the appropriate codeword to the appropriate data rate, by employing buffering and reclocking of the data, with time multiplexing of the orthogonal Walsh codes corresponding to the available lower and upper rates. The rate conversion must be synchronized with the selection of the orthogonal Walsh code (corresponding to the lower and upper rates).
摘要翻译： 公开了一种CDMA通信系统，其提供高达最大速率的几乎连续的数据速率。 所公开的CDMA通信系统增加数据速率变化性，而不会干扰用户之间的正交性。 通过对传统CDMA系统可实现的数据速率进行时间复用来获得数据速率的增加，以提供各种多媒体应用的附加数据速率。 如果向用户分配特定正交码序列，例如沃尔什序列，其允许与传统系统的最大数据速率nR，则用户可以通过时间复用特定的数据速率来获得最大速率nR的附加期望数据速率 正交码集。 要求比特率不是常规技术提供的速率的整数倍的应用的所需比特率是可以实现的。 基本速率的基本速率可以通过常规方式实现。 通过对代码wkn进行时分复用以实现R和nR之间的速率来实现达到最大“胖管”速率的期望速率，其中wkn表示扩频码wk的第n个。 本发明的发射机通过采用与可用的较低和较高速率对应的正交沃尔什码的时间复用，通过采用数据的缓冲和重新锁定来实现速率转换，以使适当的码字与适当的数据速率匹配。 速率转换必须与正交沃尔什码的选择（对应于较低和较高速率）同步。
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公开(公告)号：US5854611A
公开(公告)日：1998-12-29
申请号：US506286
申请日：1995-07-24
申请人： Michael James Gans , Yu Shuan Yeh
发明人： Michael James Gans , Yu Shuan Yeh
IPC分类号： H01Q3/00 , H01Q21/00 , H01Q23/00 , H03F1/32 , H03F3/20 , H03F3/68 , H04B1/04 , H04B7/155 , H04Q7/36 , H01Q3/22
CPC分类号： H01Q21/0025 , H01Q23/00
摘要： The present invention relates to an antenna system utilizing a power sharing network to facilitate linear operation of power amplifiers by equally distributing an electromagnetic communication signal to the plurality of power amplifiers provided in the antenna system of the present invention. The power sharing network configuration enables linear power amplifier sharing with an input signal. In particular, the present invention antenna system provides a circuit arrangement providing a greater number of linear power amplifiers relative to antenna elements provided.
摘要翻译： 本发明涉及一种利用功率共享网络来促进功率放大器的线性操作的天线系统，其通过向本发明的天线系统中提供的多个功率放大器均等地分配电磁通信信号。 功率共享网络配置使线性功率放大器与输入信号共享。 特别地，本发明的天线系统提供了相对于所提供的天线元件提供更多数量的线性功率放大器的电路装置。
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公开(公告)号：US06895253B1
公开(公告)日：2005-05-17
申请号：US08404406
申请日：1995-03-14
CPC分类号： H04B7/0408 , H01Q1/007 , H01Q3/26 , H04B7/24 , H04W16/28
摘要： A wireless communication system and method includes antenna arrays at both the transmitter and receiver having a plurality of elements for very high data rate communication. Phased array antennas or directive fixed beam antennas are used with a beamwidth in azimuth and elevation less than 30° to increase the power margin and to decrease the delay spread of signals at the receiver to permit wireless data communications at high data rates in closed environments, for example, bursty transmissions and isochronous communications. The wireless communication system is capable of data transmission rates which exceed 1 Gbps with propagation losses of up to at least 60 dB relative to one meter.
摘要翻译： 无线通信系统和方法包括在发射机和接收机两者上具有用于非常高数据速率通信的多个元件的天线阵列。 使用相控阵天线或指向固定波束天线，方位角和仰角的波束宽度小于30°，以增加功率余量，并减少接收机信号的延迟扩展，以允许在封闭环境中以高数据速率进行无线数据通信， 例如，突发传输和同步通信。 无线通信系统能够超过1Gbps的数据传输速率，相对于一米，传播损耗高达至少60dB。
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公开(公告)号：US5815115A
公开(公告)日：1998-09-29
申请号：US578292
申请日：1995-12-26
CPC分类号： H01Q1/007 , H01Q3/2605 , H01Q3/2652
摘要： A wireless transmitter and receiver are used in a wireless telecommunication system and method including antennas having at least one antenna element with a relatively narrow beamwidth at both the transmitter and receiver for high data rate communication. The antenna element provides beam coverage in both azimuthal and elevational directions, and a processor is operatively connected to the antenna and is capable of determining a suitable communication path with respect to the at least one antenna element and predetermined communications conditions.
摘要翻译： 在无线电信系统和方法中使用无线发射机和接收机，其包括具有在发射机和接收机处具有相对窄的波束宽度的至少一个天线元件的天线，用于高数据速率通信。 天线元件在方位角和高度方向都提供波束覆盖，并且处理器可操作地连接到天线，并且能够确定相对于至少一个天线元件和预定通信条件的合适的通信路径。
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5.发明授权公开(公告)号：US06646615B2
公开(公告)日：2003-11-11
申请号：US09733478
申请日：2000-12-08
IPC分类号： G01S302
摘要： A method of wireless communication is disclosed, in which polarization diversity can be utilized to improve fading performance or to increase the capacity of the communication channel in a scattering environment. Complementary signal information is impressed upon, or derived from, corresponding electric and magnetic polarized field components of a transmitted or intercepted electromagnetic wave. Four, five, or even six independent signal channels can thereby be utilized for communication using a localized antenna arrangement.
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6.发明授权公开(公告)号：US06844858B2
公开(公告)日：2005-01-18
申请号：US10191720
申请日：2002-07-09
摘要： A method of wireless communication is disclosed, in which polarization diversity can be utilized to improve fading performance or to increase the capacity of the communication channel in a scattering environment. Complementary signal information is impressed upon, or derived from, corresponding electric and magnetic polarized field components of a transmitted or intercepted electromagnetic wave. Four, five, or even six independent signal channels can thereby be utilized for communication using a localized antenna arrangement.
摘要翻译： 公开了一种无线通信方法，其中可以利用极化分集来改善衰落性能或增加散射环境中通信信道的容量。 补充信号信息被压入或衍生自发射或截获的电磁波的对应的电和磁极化场分量。 因此，四个，五个或甚至六个独立的信号通道可以用于使用局部天线布置的通信。
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公开(公告)号：US5987037A
公开(公告)日：1999-11-16
申请号：US606621
申请日：1996-02-26
申请人： Michael James Gans
发明人： Michael James Gans
CPC分类号： H01Q25/00
摘要： Disclosed is a multiple-beam transmitting system for use in a wireless telecommunication system, including a radio transmitter assembly, which can be situated at the bottom of a base station tower, and a transmitter subassembly that can be situated atop the base station tower. The radio transmitter assembly is operative to modulate and frequency translate a plurality of input information-bearing signals. The signals are then combined to form a first FDM signal, which can then be routed to the transmitter subassembly via a single FDM cable running up the tower. The transmitter subassembly includes a power splitter for splitting the first FDM signal into a plurality of second FDM signals and a plurality of frequency translators, each for frequency translating one of the second FDM signals. Each frequency translator thereby places at least one of the information-bearing signals within a predetermined translated frequency band. A multiple-beam-antenna radiates a plurality of antenna beams, with each antenna beam transmitting at least one of the information-bearing signals placed by an associated frequency translator within the translated frequency band. A multiple beam receiving system can be employed to receive incoming signals from wireless terminals.
摘要翻译： 公开了一种在无线电信系统中使用的多波束发射系统，包括位于基站塔底部的无线电发射机组件和可位于基站塔顶部的发射机子组件。 无线电发射机组件可操作以对多个输入信息承载信号进行调制和频率转换。 然后将信号组合以形成第一FDM信号，然后可以经由在塔架上运行的单个FDM电缆将其发送到发射机子组件。 发射机子组件包括功率分配器，用于将第一FDM信号分成多个第二FDM信号和多个频率转换器，每个频率转换器用于频率转换第二FDM信号中的一个。 因此，每个频率转换器将信息承载信号中的至少一个置于预定的转换频带内。 多波束天线辐射多个天线波束，其中每个天线波束发送由相关联的频率转换器在转换的频带内放置的信息承载信号中的至少一个。 可以采用多波束接收系统来接收来自无线终端的输入信号。
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