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11. 发明授权

US08462689B2 Receiver for time division multiplex system without explicit time slot assignment 有权
公开(公告)号：US08462689B2
公开(公告)日：2013-06-11
申请号：US11022353
申请日：2004-12-22
申请人： Kevin P. Johnson , Antoine J. Rouphael , George Rodney Nelson, Jr.
发明人： Kevin P. Johnson , Antoine J. Rouphael , George Rodney Nelson, Jr.
IPC分类号： H04W4/00 , H04B7/216 , H04B7/10
CPC分类号： H04L1/0045 , H04L1/004 , H04L1/0041 , H04L2001/0093 , H04W28/06 , H04W72/0413 , H04W72/0446 , H04W74/004 , H04W74/006
摘要： A technique for a time division multiplex system in which access to shared broadcast communication media is granted on a demand basis. Particular connections are assigned slot times at the transmitter based on demand. However, no specific information regarding the assignment of time slots need be communicated to the receivers. The transmit side employs a forward error correction technique followed by multiplication by a cover sequence unique to each connection. All receivers listen to the broadcast transmission channel all of the time. The receiver assigned to each connection decodes the signals in such a manner that only the receiver with the correct cover sequence assigned to a particular connection will successfully decode the data associated with that connection. Data frames that fail the forward error correction process are discarded, and only those frames which are successfully decoded are passed up to a higher layer. The occurrence of an erroneously received frame is not necessarily always reported to the transmit side of the connection; only a packet level error indication is made. In this way, information containing time slot assignment need not be communicated between the transmitter and receiver, and yet data will be correctly received.

12. 发明授权

US08320298B2 Techniques for reducing overhead in a communications system 有权
标题翻译：降低通信系统开销的技术
公开(公告)号：US08320298B2
公开(公告)日：2012-11-27
申请号：US10350309
申请日：2003-01-22
申请人： John B. Cornett, Jr. , Kevin P. Johnson , George Rodney Nelson, Jr.
发明人： John B. Cornett, Jr. , Kevin P. Johnson , George Rodney Nelson, Jr.
IPC分类号： H04B7/212
CPC分类号： H04W72/0446 , H04W28/06 , H04W28/20 , H04W28/24 , H04W48/12 , H04W72/042
摘要： Parallel demodulators are provided in field units. Forward and reverse channel allocation information may be broadcast to the field units in the same epoch as traffic data but on first and second channels, such as paging and traffic channels. This assures that all field units are able to receive forward and reverse channel allocation information every epoch. By having parallel demodulators in the field unit, switching between the first and second channels is avoided and channel allocation information is not lost.
摘要翻译：并行解调器以现场单位提供。正向和反向信道分配信息可以在与业务数据相同的时间段中广播到场单元，而是在诸如寻呼和业务信道的第一和第二信道上广播。这确保所有现场单元能够每个时期接收正向和反向信道分配信息。通过在场单元中具有并行解调器，避免了第一和第二信道之间的切换，并且信道分配信息不会丢失。

13. 发明授权

US08195169B1 Methods and systems for automatically forwarding data messages in a wireless telecommunications network 有权
标题翻译：用于在无线电信网络中自动转发数据消息的方法和系统
公开(公告)号：US08195169B1
公开(公告)日：2012-06-05
申请号：US12252873
申请日：2008-10-16
申请人： Piyush Upadhyay , John Schuler , William Routt , Jamie Kennedy , Rodney Nelson
发明人： Piyush Upadhyay , John Schuler , William Routt , Jamie Kennedy , Rodney Nelson
IPC分类号： H04W40/00 , H04M3/42
CPC分类号： H04W40/00 , H04L51/14 , H04L51/38
摘要： A system and medium are provided for forwarding a data message originally addressed to a first mobile device to a second mobile device in a wireless telecommunications network. Data messages may include text messages, picture messages, and video messages. In addition to forwarding data messages, other optional data message forwarding features are provided such as a copy feature that allows for a forwarded message to be copied back to the original addressee, and an invisible feature that prevents a data message sender from knowing that a data message has been forwarded by the data message addressee.
摘要翻译：提供了一种系统和介质，用于将原始寻址到第一移动设备的数据消息转发到无线电信网络中的第二移动设备。数据消息可以包括文本消息，图片消息和视频消息。除了转发数据消息之外，还提供了其他可选的数据消息转发功能，例如允许将转发的消息复制回原始收件人的复制功能，以及防止数据消息发送者知道数据的不可见特征消息已被数据消息收发器转发。

14. 发明申请

US20120087364A1 REVERSE LINK PILOT INTEGRATED WITH BLOCK CODES 有权
标题翻译：反向链接引导与块代码集成
公开(公告)号：US20120087364A1
公开(公告)日：2012-04-12
申请号：US13311151
申请日：2011-12-05
申请人： John E. Hoffmann , George Rodney Nelson, JR. , James A. Proctor, JR. , Antoine J. Rouphael
发明人： John E. Hoffmann , George Rodney Nelson, JR. , James A. Proctor, JR. , Antoine J. Rouphael
IPC分类号： H04B7/216 , H04W92/00 , H04L27/00
CPC分类号： H04L5/005 , H04B1/707 , H04B7/2628 , H04B2201/70701 , H04L1/0041 , H04L1/0063 , H04L1/0065 , H04L1/0066 , H04L1/0071 , H04L5/0048 , H04L27/183 , H04L27/2657 , H04L27/2662
摘要： A technique for encoding digital communication signals. Data symbols are augmented in pilot symbols inserted at predetermined positions. The pilot augmented sequence is then fed to a deterministic error correction block encoder, such as a turbo product coder, to output a coded sequence. The symbols in the error correction encoded sequence are then rearranged to ensure that the output symbols derived from input pilot symbols are located at regular, predetermined positions. As a result, channel encoding schemes can more easily be used which benefits from power of two length block sizes.
摘要翻译：一种用于编码数字通信信号的技术。数据符号在插入预定位置的导频符号中增加。导频增强序列然后被馈送到诸如turbo乘积编码器的确定性纠错块编码器，以输出编码序列。然后重新排列纠错编码序列中的符号，以确保从输入导频符号导出的输出符号位于规则的预定位置。结果，可以更容易地使用信道编码方案，其受益于两个长度块大小的功率。

15. 发明授权

US07613227B2 Reverse link correlation filter in wireless communication systems 失效
标题翻译：无线通信系统中的反向链路相关滤波器
公开(公告)号：US07613227B2
公开(公告)日：2009-11-03
申请号：US11901571
申请日：2007-09-17
申请人： Antoine J. Rouphael , John E. Hoffmann , George Rodney Nelson, Jr. , Samir K. Patel , James A. Proctor, Jr. , Daniel I. Riley
发明人： Antoine J. Rouphael , John E. Hoffmann , George Rodney Nelson, Jr. , Samir K. Patel , James A. Proctor, Jr. , Daniel I. Riley
IPC分类号： H04B1/00
CPC分类号： H04B1/707 , H04B1/7105 , H04B1/712 , H04B2201/70703 , H04B2201/70705 , H04B2201/7071
摘要： A single, common correlation filter (CF) core is provided in a receiver for recovery of data from received code division multiple access (CDMA) signals. Signals are received over CDMA channels with different data rates, where the received signals include user information such as pilot and data symbols that have been spread according to different despreading rates including tier 1, tier 2 and tier 3 rates, where tier 1 is the smallest despreading rate. The received signal is correlated at the smallest despreading rate in the correlation filter (CF) by time multiplexing delayed versions of the pseudorandom noise (PN) code. The correlated information is then demultiplexed and pilot-aided QPSK demodulated. The demodulated information is summed at the proper integer multiple of the tier 1 rate to achieve tier 2 and tier 3 despreading rates. According to an embodiment, the three strongest multipaths components in terms of the received power are selected in a window or time period for optimal information recovery.
摘要翻译：在接收机中提供单个公共相关滤波器（CF）核，用于从接收的码分多址（CDMA）信号中恢复数据。在具有不同数据速率的CDMA信道上接收信号，其中所接收的信号包括诸如导频和数据符号之类的用户信息，所述导频和数据符号根据不同的解扩速率（包括层1，层2和层3速率）进行扩展，其中层1是最小的解散率。接收到的信号通过伪随机噪声（PN）码的延迟版本的时间复用以相关滤波器（CF）中的最小解扩频率相关。然后将相关信息解复用并导频辅助QPSK解调。解调信息以1级速率的适当整数倍相加，以实现2级和3级解扩速率。根据实施例，在用于最佳信息恢复的窗口或时间段中选择关于接收功率的三个最强多径分量。

16. 发明授权

US07308285B2 Antenna adaptation in a time division duplexing system 有权
标题翻译：时分双工系统中的天线适配
公开(公告)号：US07308285B2
公开(公告)日：2007-12-11
申请号：US10434437
申请日：2003-05-07
申请人： George Rodney Nelson, Jr. , James A. Proctor, Jr. , John A. Regnier
发明人： George Rodney Nelson, Jr. , James A. Proctor, Jr. , John A. Regnier
IPC分类号： H04M1/00
CPC分类号： H04W52/08 , H01Q3/26 , H04B7/022 , H04B17/327 , H04W52/143 , H04W52/146 , H04W52/18 , H04W52/24 , H04W52/242 , H04W52/283 , H04W52/40 , H04W52/42
摘要： A technique for steering a directional antenna such as may be used with User Equipment (UE) in a wireless communication system. Optimum angle settings for the directional antenna are determined as different values for an uplink and downlink; that is for simple reception and simple transmission. Thus, rather than determine compromised directions that are picked in an attempt to optimize transmission and reception with the same directional setting, directional settings may be optimized independently. The invention is of particular use in a Time Division Duplex (TDD) system where transmit and receive functions can be operating independently at different times. In further aspects, an optimum direction is determined by estimating an interference signal power which is detected from signals emanating from adjacent base stations (access points) and determining a directional setting that minimizes interference to adjacent cells based upon such measurements. A further level of sophistication in antenna angle setting, is to monitor the loading of adjacent cell sites base stations and turning interference and determine the settings accordingly to minimize interference to such heavily loaded neighbors. Further aspects of the invention adapts to acquisition modes that accommodate the directional setting in active use of the system.
摘要翻译：用于在无线通信系统中用于指导定向天线的技术，例如可以与用户设备（UE）一起使用。定向天线的最佳角度设置被确定为上行链路和下行链路的不同值; 这是为了简单的接收和简单的传输。因此，可以独立地优化方向设置，而不是确定在尝试以相同的方向设置来优化发送和接收的挑选方向。本发明在时分双工（TDD）系统中特别有用，其中发送和接收功能可以在不同时间独立运行。在另外的方面，通过估计从相邻基站（接入点）发出的信号中检测到的干扰信号功率，并且基于这样的测量确定最小化对相邻小区的干扰的方向设置来确定最佳方向。在天线角度设置方面的进一步的复杂程度是监视相邻小区站点基站的负荷和转向干扰，并相应地确定设置以最小化对这种负载较重的邻居的干扰。本发明的另外的方面适应于在系统的主动使用中适应方向设置的采集模式。

17. 发明授权

US07272169B2 Reverse link correlation filter in wireless communication systems 有权
标题翻译：无线通信系统中的反向链路相关滤波器
公开(公告)号：US07272169B2
公开(公告)日：2007-09-18
申请号：US10957928
申请日：2004-10-04
申请人： Antoine J. Rouphael , John E. Hoffmann , George Rodney Nelson, Jr. , Samir K. Patel , James A. Proctor, Jr. , Daniel I. Riley
发明人： Antoine J. Rouphael , John E. Hoffmann , George Rodney Nelson, Jr. , Samir K. Patel , James A. Proctor, Jr. , Daniel I. Riley
IPC分类号： H04B1/00
CPC分类号： H04B1/707 , H04B1/7105 , H04B1/712 , H04B2201/70703 , H04B2201/70705 , H04B2201/7071
摘要： A single, common correlation filter (CF) core is provided in a wireless system using CDMA. A plurality of channels with different data rates are provided in the wireless system. The channels provided in the wireless system include the access channel, the maintenance channel, and the traffic channel in which information (e.g., pilot or data symbols or both) is transmitted at the tier 1, tier 2 and tier 3 rates. The data rate for transmitting the information is programmable by digital signal processor (DSP). A user-unique code, such as a PN code, is applied to the information being transmitted in the channels of the wireless system. The information is QPSK modulated and transmitted in any one of the channels at any data rate. The transmitted information is correlated at the smallest data rate (i.e., the tier 1 rate) in the correlation filter (CF) of the wireless system by time multiplexing delayed versions of the PN code to the correlation filter core. The correlated information is then demultiplexed and pilot aided QPSK demodulated. The demodulated information is summed at the proper integer multiple of the tier 1 rate to achieve the tier 2 and tier 3 rates. The three strongest multipaths (in terms of the received power) are selected in a window or time period for optimal information recovery. Furthermore, three outputs from the demodulated information can be provided and combined for temporal diversity. Spatial diversity is achieved by providing a plurality of antennas at each receiver and a single, common correlation filter at each of the plurality of antennas of the receivers in the wireless system.
摘要翻译：在使用CDMA的无线系统中提供单个公共相关滤波器（CF）核。在无线系统中提供具有不同数据速率的多个信道。在无线系统中提供的信道包括接入信道，维护信道和业务信道，信道（例如，导频或数据符号或两者）以层1，层2和层3速率被传输。用于传输信息的数据速率可由数字信号处理器（DSP）编程。诸如PN码的用户唯一码被应用于在无线系统的频道中发送的信息。该信息以任何数据速率在任何一个信道中进行QPSK调制和传输。所发送的信息通过将PN码的延迟版本时间复用到相关滤波器核心，以无线系统的相关滤波器（CF）中的最小数据速率（即，层1速率）相关。然后将相关信息解复用并进行导频辅助QPSK解调。解调信息以1级速率的适当整数倍相加，以实现2级和3级速率。在窗口或时间段中选择三个最强的多路径（以接收功率计），以获得最佳信息恢复。此外，可以提供来自解调信息的三个输出并将其组合用于时间分集。通过在每个接收机处提供多个天线以及在无线系统中的接收机的多个天线的每个天线处提供单个公共相关滤波器来实现空间分集。

18. 发明授权

US07233627B2 Method for searching pilot signals to synchronize a CDMA receiver with an associated transmitter 有权
标题翻译：用于搜索导频信号以使CDMA接收机与相关联的发射机同步的方法
公开(公告)号：US07233627B2
公开(公告)日：2007-06-19
申请号：US09789476
申请日：2001-02-20
申请人： James A. Proctor , Antoine J. Rouphael , John E. Hoffmann , George Rodney Nelson, Jr.
发明人： James A. Proctor , Antoine J. Rouphael , John E. Hoffmann , George Rodney Nelson, Jr.
IPC分类号： H04B7/02
CPC分类号： H04W56/001 , H04B1/7075 , H04B1/70775 , H04B1/7103 , H04B7/086 , H04B2201/70701 , H04L27/2273 , H04L2027/0057 , H04L2027/0087
摘要： A method for synchronizing a CDMA receiver to a transmitter when an adaptive antenna is utilized to receive transmitted data, wherein a receiving antenna system is adapted between a 360° reception angle pattern (i.e., an omni-directional pattern) and a fixed reception angle (i.e., a directional pattern) by permitting the receiver to identify a pilot signal having the largest magnitude. The receiver minimizes interference from other pilot signals by steering antenna pattern nulls toward other transmitters. As a result, the time required for the receiver to acquire a valid pilot signal is significantly reduced.
摘要翻译：一种当使用自适应天线来接收发射数据时将CDMA接收机同步到发射机的方法，其中接收天线系统适应于360°接收角度模式（即，全向模式）和固定接收角度即，方向图），通过允许接收机识别具有最大幅度的导频信号。接收器通过向其他发射机转向天线图形零点来最小化来自其他导频信号的干扰。结果，接收机获取有效导频信号所需的时间显着减少。

19. 发明授权

US07103386B2 Antenna steering and hidden node recognition for an access point 有权
标题翻译：天线转向和接入点的隐藏节点识别
公开(公告)号：US07103386B2
公开(公告)日：2006-09-05
申请号：US10870702
申请日：2004-06-17
申请人： John E. Hoffmann , Kevin P. Johnson , George Rodney Nelson, Jr. , John A. Regnier
发明人： John E. Hoffmann , Kevin P. Johnson , George Rodney Nelson, Jr. , John A. Regnier
IPC分类号： H04M1/00
CPC分类号： H04W16/28 , H04B7/0608 , H04B7/0617 , H04B7/0695 , H04B7/0811 , H04B7/088 , H04W74/08
摘要： A method for operating an access point in a wireless local area network (WLAN) is provided. The access point includes a directional antenna for communicating with a plurality of remote stations, and the directional antenna includes a plurality of antenna patterns. The method includes creating an antenna database by associating between the access point and each remote station a respective measured signal quality corresponding to the plurality of antenna patterns. The respective measured signal qualities are determined by the access point based upon communications with each remote station. The method further includes determining for each remote station a preferred antenna pattern based upon the antenna database, and selecting a remote station and the corresponding preferred antenna pattern to communicate with. It is also determined based upon the antenna database and prior to communicating with the selected remote station, if any non-selected remote stations have the potential of not being aware when such communications actually occurs.
摘要翻译：提供了一种在无线局域网（WLAN）中操作接入点的方法。接入点包括用于与多个远程站通信的定向天线，并且定向天线包括多个天线方向图。该方法包括通过在接入点和每个远程站之间相关联与多个天线方向图对应的相应测量信号质量来创建天线数据库。相应的测量信号质量由接入点根据与每个远程站的通信来确定。该方法还包括基于天线数据库为每个远程站确定优选的天线方向图，并且选择远程站和相应的优选天线方向图进行通信。还基于天线数据库确定并且在与所选择的远程站通信之前，如果任何未选择的远程站具有当这种通信实际发生时不知道的潜力。

20. 发明授权

US07002902B2 Method and system for economical beam forming in a radio communication system 失效
公开(公告)号：US07002902B2
公开(公告)日：2006-02-21
申请号：US09791503
申请日：2001-02-23
申请人： James A. Proctor, Jr. , Lawrence Wayne LaMont, Jr. , George Rodney Nelson, Jr. , Antoine J. Rouphael , John E. Hoffmann
发明人： James A. Proctor, Jr. , Lawrence Wayne LaMont, Jr. , George Rodney Nelson, Jr. , Antoine J. Rouphael , John E. Hoffmann
IPC分类号： H04J11/00
CPC分类号： H01Q1/246 , H01Q3/26 , H04B7/0408 , H04B7/0678 , H04B7/0848 , H04J13/004 , H04W88/08
摘要： Codes are applied to signals to reduce the number of transceivers and associated RF cabling extending from base electronics to antenna array electronics in a base station providing beam forming. The transceivers can be reduced to as few as one, and the RF cabling can be reduced to none. The codes may be orthogonal codes, such as Walsh codes. The codes are applied: to weights used to produce the beam forming, signal being transmitted or received, or both. The codes are applied a second time to decompose the coded weights/signal to associate the weights and signal with the beam forming. The coded weights/signal can be summed, including with other coded weights/signals, to produce a composite code division multiplexed signal for transmission between transceiver(s) and antenna array electronics over a single RF or non-RF cable spanning between the base electronics and array electronics. The complexity, size, and cost of electronics and cables are reduced, and calibration of transceivers and demodulators can be eliminated.

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