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51. 发明授权

US07295531B2 Mobile station assisted timing synchronization in a CDMA communication system 有权
标题翻译： CDMA通信系统中的移动台辅助定时同步
公开(公告)号：US07295531B2
公开(公告)日：2007-11-13
申请号：US09841893
申请日：2001-04-25
申请人： Charles E. Wheatley, III , Edward G. Tiedemann, Jr.
发明人： Charles E. Wheatley, III , Edward G. Tiedemann, Jr.
IPC分类号： H04Q7/00 , H04Q7/24 , H04J3/06
CPC分类号： H04B7/2687 , H04B1/7075 , H04B1/70753 , H04B1/7077 , H04B2201/70701 , H04B2201/70702 , H04J3/0682 , H04J13/00
摘要： In the present invention, the slave base station attains synchronization with the reference base station through messages transmitted from and received by a mobile station either in the soft handoff region between the reference base station and the slave base station or within a range which allows the mobile station to communicate with the slave base station. When the mobile station is not in communication with both the reference base station and the slave base station, then the round trip delay between the mobile station and the reference base station is measured by the reference base station. The reference base station communicates the PN code used by the mobile station over the reverse link to the slave base station. The slave base station acquires the signal from the mobile station and determines when the signal from the mobile station arrives. The slave base station then makes and estimate as to the length of the delay between transmission of a signal from the mobile station to the slave base station. Based upon these measurements and estimates, the slave base station determines the error which is present in the slave base station system time.
摘要翻译：在本发明中，从基站通过在参考基站和从基站之间的软切换区域内或在允许移动台的范围内由移动站发送和接收的消息与基准基站实现同步站与从站基站进行通信。当移动台不与参考基站和从基站进行通信时，由参考基站测量移动台与参考基站之间的往返延迟。参考基站通过反向链路将由移动站使用的PN码传送到从基站。从基站从移动台获取信号，并确定何时来自移动台的信号到达。然后，从基站对从移动台到从基站的信号的发送之间的延迟的长度进行估计。基于这些测量和估计，从基站确定从基站系统时间中存在的错误。

52. 发明授权

US07031398B2 Method and apparatus for obtaining transmit diversity using switched antennas 有权
标题翻译：使用交换天线获得发射分集的方法和装置
公开(公告)号：US07031398B2
公开(公告)日：2006-04-18
申请号：US10913093
申请日：2004-08-06
申请人： Joseph P. Odenwalder , Stein A. Lundby , Charles E. Wheatley, III , Edward G. Tiedemann, Jr.
发明人： Joseph P. Odenwalder , Stein A. Lundby , Charles E. Wheatley, III , Edward G. Tiedemann, Jr.
IPC分类号： H04B7/02
CPC分类号： H04L1/0057 , H04B7/0604 , H04L1/0061 , H04L1/0065 , H04L1/0071 , H04L1/06
摘要： A method and apparatus for providing diversity transmissions to a mobile unit from a transmitting station having at least first and second antennas by repeatedly switching between the two antennas during the transmission of information to the receiving unit. Message information is transmitted from the first antenna in the transmitting station to the receiving unit. After the start of the transmission of the message information from the first antenna, transmission of the message information from the first antenna to the receiving unit terminates and transmission of the message information from the second antenna in the transmitting station to the receiving unit is initiated. Some time after transmission of the message information from second antenna is initiated, the transmission of the message information from the second antenna to the receiving unit terminates and transmission of the message information from the first antenna in the transmitting station to the receiving unit is initiated. Repeated switching between the first and second antennas is achieved by repeating the process. The switching results in diversity transmissions that improve the ability of a receiving unit to receive the coded and interleaved transmitted message information from the transmitting station. The interleaver disperses the encoded symbols in each antenna dwell period such that the decoder decisions are based on a mix of symbols form each antenna. Therefore the decoder decisions are unreliable only when the mix of symbols from the different antennas, with different fading characteristics, are unreliable over the span of symbols the decoder uses in its decision process.
摘要翻译：一种用于在具有至少第一和第二天线的发射台向移动单元提供分集传输的方法和装置，通过在向接收单元发送信息期间在两个天线之间重复切换。消息信息从发送站中的第一天线发送到接收单元。在从第一天线发送消息信息开始之后，消息信息从第一天线到接收单元的传输终止，并且发送消息信息从发送站中的第二天线到接收单元的发送。开始从第二天线发送消息信息之后的某个时间，消息信息从第二天线到接收单元的传输终止，并且发送消息信息从发送站中的第一天线到接收单元的发送。通过重复该过程来实现第一和第二天线之间的重复切换。切换导致分集传输，其提高接收单元从发射台接收编码和交织的传输消息信息的能力。交织器在每个天线驻留周期中分散编码符号，使得解码器判定基于每个天线的符号混合。因此，只有当解码器在其决策过程中使用的符号范围内，来自具有不同衰落特性的不同天线的符号混合不可靠时，解码器判决才是不可靠的。

53. 发明授权

US07003021B2 System and method for generating signal waveforms in a CDMA cellular telephone system 失效
公开(公告)号：US07003021B2
公开(公告)日：2006-02-21
申请号：US10772490
申请日：2004-02-05
申请人： Klein S. Gilhousen , Irwin M. Jacobs , Roberto Padovani , Lindsay A. Weaver, Jr. , Charles E. Wheatley, III , Andrew J. Viterbi
发明人： Klein S. Gilhousen , Irwin M. Jacobs , Roberto Padovani , Lindsay A. Weaver, Jr. , Charles E. Wheatley, III , Andrew J. Viterbi
IPC分类号： H04B1/69
CPC分类号： H04L1/0002 , H04B1/707 , H04B1/70757 , H04B1/7115 , H04B7/2618 , H04B7/2628 , H04B7/2637 , H04B2201/70701 , H04B2201/70703 , H04J3/02 , H04J3/1688 , H04J3/22 , H04J13/0022 , H04J13/0048 , H04J13/12 , H04L1/0071 , H04L1/0072 , H04L1/06 , H04L1/08 , H04L5/02 , H04L5/12 , H04L23/02 , H04W52/08 , H04W52/10 , H04W52/26
摘要： A system and method for communicating information signals using spread spectrum communication techniques. PN sequences are constructed that provide orthogonality between the users so that mutual interference will be reduced, allowing higher capacity and better link performance. With orthogonal PN codes, the cross-correlation is zero over a predetermined time interval, resulting in no interference between the orthogonal codes, provided only that the code time frames are time aligned with each other. In an exemplary embodiment, signals are communicated between a cell-site and mobile units using direct sequence spread spectrum communication signals. In the cell-to-mobile link, pilot, sync, paging and voice channels are defined. Information communicated on the cell-to-mobile link channels are, in general, encoded, interleaved, bi-phase shift key (BPSK) modulated with orthogonal covering of each BPSK symbol along with quadrature phase shift key (QPSK) spreading of the covered symbols. In the mobile-to-cell link, access and voice channels are defined. Information communicated on the mobile-to-cell link channels are, in general, encoded, interleaved, orthogonal signaling along with QPSK spreading.

54. 发明授权

US06760366B1 Method and apparatus for pilot search using a matched filter 有权
标题翻译：使用匹配滤波器进行导频搜索的方法和装置
公开(公告)号：US06760366B1
公开(公告)日：2004-07-06
申请号：US09450265
申请日：1999-11-29
申请人： Charles E. Wheatley, III , John E. Maloney
发明人： Charles E. Wheatley, III , John E. Maloney
IPC分类号： H04B169
CPC分类号： H04B1/7075 , H04B1/7093 , H04B2201/70701
摘要： The present invention includes a cellular pilot signal detector or searcher for use in a cellular mobile communications unit. The signal detector uses a matched filter to detect a pilot signal transmitted from a cellular base station. The matched filter includes a plurality of taps and a plurality of delays located between adjacent taps. The signal components of a received digital signal are held on the taps of the matched filter by the delays. The matched filter compares the signal components of the received signal to an expected or searched for digital pattern. The matched filter puts out a relatively large signal if the received digital signal matches the expected digital pattern. The matched filter can also be used in parallel with a correlator.
摘要翻译：本发明包括在蜂窝移动通信单元中使用的蜂窝导频信号检测器或搜索器。信号检测器使用匹配滤波器来检测从蜂窝基站发送的导频信号。匹配滤波器包括位于相邻水龙头之间的多个抽头和多个延迟。接收到的数字信号的信号分量由延迟保持在匹配滤波器的抽头上。匹配滤波器将接收信号的信号分量与预期或搜索的数字模式进行比较。如果接收到的数字信号与预期的数字模式匹配，则匹配滤波器输出相对较大的信号。匹配滤波器也可以与相关器并联使用。

55. 发明授权

US06741661B2 Method and apparatus for peak-to-average power reduction 失效
标题翻译：峰值与平均功率降低的方法和装置
公开(公告)号：US06741661B2
公开(公告)日：2004-05-25
申请号：US09863244
申请日：2001-05-22
申请人： Charles E. Wheatley, III , Rashid A. Attar
发明人： Charles E. Wheatley, III , Rashid A. Attar
IPC分类号： H04L2549
CPC分类号： H04B1/707 , H04B2201/70706 , H04L27/2624
摘要： A method and system that reduces the peak-to-average power ratio of a reverse link signal is described. A baseband structure implements a peak reduction technique using peak windowing. A non-rectangular window is used to distort the signal. One embodiment of the window is an inverted-raised cosine with the peak reduction a function of the relative difference in the squared-magnitude of the envelope relative to that of the desired peak-to-average power ratio. Multiple passes through the peak-reduction function may be performed until a desired target peak-to-average power ratio is achieved.
摘要翻译：描述了降低反向链路信号的峰均功率比的方法和系统。基带结构使用峰值窗口实现峰值缩减技术。使用非矩形窗口来扭曲信号。窗口的一个实施例是具有峰值减小的反升余弦，相对于期望的峰均功率比的平方幅度的相对差的函数。可以执行多次通过峰值降低功能，直到达到期望的目标峰值与平均功率比。

56. 发明授权

US06693951B1 System and method for generating signal waveforms in a CDMA cellular telephone system 失效
标题翻译：用于在CDMA蜂窝电话系统中产生信号波形的系统和方法
公开(公告)号：US06693951B1
公开(公告)日：2004-02-17
申请号：US09360059
申请日：1999-07-23
申请人： Klein S. Gilhousen , Irwin M. Jacobs , Roberto Padovani , Lindsay A. Weaver, Jr. , Charles E. Wheatley, III , Andrew J. Viterbi
发明人： Klein S. Gilhousen , Irwin M. Jacobs , Roberto Padovani , Lindsay A. Weaver, Jr. , Charles E. Wheatley, III , Andrew J. Viterbi
IPC分类号： H04B169
CPC分类号： H04L1/0002 , H04B1/707 , H04B1/70757 , H04B1/7115 , H04B7/2618 , H04B7/2628 , H04B7/2637 , H04B2201/70701 , H04B2201/70703 , H04J3/02 , H04J3/1688 , H04J3/22 , H04J13/0022 , H04J13/0048 , H04J13/12 , H04L1/0071 , H04L1/0072 , H04L1/06 , H04L1/08 , H04L5/02 , H04L5/12 , H04L23/02 , H04W52/08 , H04W52/10 , H04W52/26
摘要： A system and method for communicating information signals using spread spectrum communication techniques. PN sequences are constructed that provide orthogonality between the users so that mutual interference will be reduced, allowing higher capacity and better link performance. With orthogonal PN codes, the cross-correlation is zero over a predetermined time interval, resulting in no interference between the orthogonal codes, provided only that the code time frames are time aligned; with each other. In an exemplary embodiment, signals are communicated between a cell-site and mobile units using direct sequence spread spectrum communication signals. In the cell-to-mobile link, pilot, sync, paging and voice channels are defined. Information communicated on the cell-to-mobile link channels are, in general, encoded, interleaved, bi-phase shift key (BPSK) modulated with orthogonal covering of each BPSK symbol along with quadrature phase shift key (QPSK) spreading of the covered symbols. In the mobile-to-cell link, access and voice channels are defined. Information communicated on the mobile-to-cell link channels are, in general, encoded, interleaved, orthogonal signaling along with QPSK spreading.
摘要翻译：一种使用扩频通信技术传送信息信号的系统和方法。构造PN序列，以提供用户之间的正交性，从而减少相互干扰，从而允许更高的容量和更好的链路性能。使用正交PN码，在相关的时间间隔内，互相关为0，导致正交码之间没有干扰，只要码时间帧是时间对齐的; 与彼此。在示例性实施例中，使用直接序列扩频通信信号在小区站点和移动单元之间传送信号。在小区到移动链路中，定义了导频，同步，寻呼和语音信道。在小区到移动链路信道上传送的信息通常是用每个BPSK符号的正交覆盖调制的编码，交织，双相移键（BPSK）以及覆盖符号的正交相移键（QPSK）扩展。在移动小区链路中，定义了接入和语音信道。一般来说，在移动小区链路信道上传送的信息一起编码，交织，正交信令以及QPSK扩频。

57. 发明授权

US06317587B1 Method and apparatus for performing fast power control in a mobile communication system 有权
公开(公告)号：US06317587B1
公开(公告)日：2001-11-13
申请号：US09454926
申请日：1999-12-03
申请人： Edward G. Tiedemann, Jr. , Joseph P. Odenwalder , Charles E. Wheatley, III , Roberto Padovani
发明人： Edward G. Tiedemann, Jr. , Joseph P. Odenwalder , Charles E. Wheatley, III , Roberto Padovani
IPC分类号： H04B7005
CPC分类号： H04W52/362 , H04W52/08 , H04W52/20 , H04W52/228 , H04W52/247 , H04W52/28 , H04W52/282 , H04W52/283 , H04W52/367 , H04W52/50 , H04W52/60
摘要： A method and apparatus for controlling transmission power levels in a mobile communication system. The method provides for a closed-loop power control method. A mobile station provides information on the quality of the signal received from the base station, and the base station responds by adjusting the power allocated to that user in a shared base station signal. The transmission power is adjusted initially by a large increment and then ramped down at an increasingly decreasing rate. The mobile station also provides information to the base station as to its relative velocity and the base station adjusts its transmission power in accordance with this velocity information.

58. 发明授权

US5930692A Method and apparatus for increasing receiver immunity to interference 失效
标题翻译：增加接收机抗干扰能力的方法和装置
公开(公告)号：US5930692A
公开(公告)日：1999-07-27
申请号：US855724
申请日：1997-05-09
申请人： Paul E. Peterzell , Richard K. Kornfeld , Charles E. Wheatley, III , Ana Weiland
发明人： Paul E. Peterzell , Richard K. Kornfeld , Charles E. Wheatley, III , Ana Weiland
IPC分类号： H04B1/06 , H03G1/00 , H03G3/30 , H04B20060101 , H04B1/10 , H04B1/16 , H04B1/18 , H04B1/40 , H04B1/7075 , H04B1/7097 , H04B3/06 , H04B7/005 , H04B7/26 , H04B15/00
CPC分类号： H04W52/52 , H03F3/72 , H03G1/0088 , H03G3/3052 , H03G3/3068 , H04B1/109 , H04B1/70755 , H04B1/7097 , H03F2203/7239 , Y02B60/50
摘要： The method and apparatus of the present invention improve the immunity to interference of a radio receiver. The power level of a received signal is detected. If the power level meets or exceeds a predetermined power threshold, the low noise amplifier is by-passed, thus increasing the intercept point of the receiver components.Alternative embodiments include the use of an RF power detector to control the front-end gain as a function of jammer power. In lieu of a switchable RF gain block, several methods of continuous gain control are proposed. Continuous gain control allows the interference suppression and sensitivity of the receiver to be adjusted at lower signal levels than the switchable gain block.
摘要翻译：本发明的方法和装置提高了无线电接收机的抗干扰能力。检测到接收信号的功率电平。如果功率电平满足或超过预定功率阈值，则低噪声放大器被旁路，从而增加了接收器组件的截取点。替代实施例包括使用RF功率检测器来控制作为干扰功率的函数的前端增益。代替可切换的RF增益块，提出了几种连续增益控制方法。连续增益控制允许在比可切换增益块更低的信号电平下调整接收机的干扰抑制和灵敏度。

59. 发明授权

US5867763A Method and apparatus for integration of a wireless communication system with a cable T.V. system 失效
标题翻译：用于将无线通信系统与电缆T.V.系统集成的方法和装置
公开(公告)号：US5867763A
公开(公告)日：1999-02-02
申请号：US600104
申请日：1996-02-08
申请人： Richard F. Dean , Lindsay A. Weaver, Jr. , Charles E. Wheatley, III
发明人： Richard F. Dean , Lindsay A. Weaver, Jr. , Charles E. Wheatley, III
IPC分类号： H04W52/04 , H04N7/173 , H04W88/08
CPC分类号： H04W88/085 , H04N7/17309
摘要： The present invention is a method and apparatus for integrating a personal communication system with a cable television plant. A set of radio antenna devices (RAD) are connected to the cable plant. The RADs provide frequency conversion and power control of signal received from the cable plant for wireless transmission to the remote units. The RADs also provide power control and frequency conversion of wireless signals received from the remote units for transmission by the RADs onto the cable plant. In addition to the functions of standard base stations and centralized controller, the CATV base station must also compensate for gain variations in the cable plant. The downstream power control is regulated by a RAD reference signal which can be hidden within the CDMA signal for maximum efficiency. The upstream power control is regulated by an upstream gain reference signal which is individually transmitted by each RAD on the upstream link. The architecture of the present invention lends itself to a great deal of flexibility. Each RAD can operate as either an element of a distributed antenna or a base station sector unto itself. The function of each RAD as distributed antenna or as sector can be remotely programmed from the headend processor. Thus the capacity density of the system can be changed to accommodate the changing traffic density. The flexibility also is important at system deployment. When the system is deploy, the entire system may feed only one sector at the base station thus reducing the start-up cost of implementing a system. As system traffic increases, more resources can simply be added at the headend to provide more capacity.
摘要翻译：本发明是用于将个人通信系统与有线电视设备集成的方法和装置。一组无线电天线设备（RAD）连接到电缆设备。 RAD提供从电缆设备接收的信号的频率转换和功率控制，用于无线传输到远程单元。 RAD还提供从远程单元接收的无线信号的功率控制和频率转换，以将RAD传输到电缆设备上。除了标准基站和集中控制器的功能外，CATV基站还必须补偿电缆厂的增益变化。下行功率控制由可以隐藏在CDMA信号内的RAD参考信号来调节，以获得最大的效率。上游功率控制由上游链路上的每个RAD单独发送的上游增益参考信号来调节。本发明的架构具有很大的灵活性。每个RAD可以作为分布式天线或基站扇区的元件本身进行操作。每个RAD作为分布式天线或扇区的功能可以从头端处理器进行远程编程。因此，可以改变系统的容量密度以适应不断变化的交通密度。系统部署时的灵活性也很重要。当系统部署时，整个系统可以在基站仅馈送一个扇区，从而降低了实现系统的启动成本。随着系统流量的增加，在头端可以简单地添加更多的资源来提供更多的容量。

60. 发明授权

US5758266A Multiple frequency communication device 失效
标题翻译：多频通信设备
公开(公告)号：US5758266A
公开(公告)日：1998-05-26
申请号：US316188
申请日：1994-09-30
申请人： Richard K. Kornfeld , Charles E. Wheatley, III
发明人： Richard K. Kornfeld , Charles E. Wheatley, III
IPC分类号： H04B1/40 , H04B1/38 , H04B7/005 , H04B7/12 , H04B7/208 , H04B7/26 , H04J1/04 , H04L1/04 , H04L5/06 , H04Q11/02 , H04W36/14 , H04W36/18
CPC分类号： H04B7/12 , H04B1/005 , H04W36/14 , H04W36/18
摘要： The dual band code division multiple access radio of the present invention operates on multiple frequencies simultaneously on either transmit or receive. The transmit path operates by splitting the transmit intermediate frequency (IF) path (103) and mixing the IF to two different transmit frequencies using two frequency synthesizers (140 and 145). The receive path (104) has two RF channels (116 and 117) that are mixed with the frequencies generated by the synthesizers (140 and 145) and summed into one IF strip. Thus the radio of the present invention can perform a soft hand-off between frequencies while communicating with both base stations simultaneously. Additional mixing paths and synthesizers can be added if it is desired to communicate with more than two base stations simultaneously.
摘要翻译：本发明的双频带码分多址无线电在传输或接收的同时在多个频率上工作。发射路径通过分离发射中频（IF）路径（103）并使用两个频率合成器（140和145）将IF混合到两个不同的发射频率来操作。接收路径（104）具有与由合成器（140和145）生成的频率混合的两个RF信道（116和117）并且相加到一个IF条带中。因此，本发明的无线电装置可以同时在与两个基站通信的同时执行软切换。如果需要同时与两个以上的基站通信，可以添加其他混合路径和合成器。

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