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1. 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。

2. 发明授权

US07609648B2 Antenna steering for an access point based upon control frames 有权
标题翻译：基于控制帧的接入点的天线转向
公开(公告)号：US07609648B2
公开(公告)日：2009-10-27
申请号：US10870718
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： H04B7/216
CPC分类号： H04B7/0602 , H04B7/0408 , H04B7/0608 , H04W88/08
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 at least one remote station in a forward link based upon an exchange of packet data comprising a plurality of control frames and a data frame. The directional antenna includes a plurality of antenna patterns. The method includes receiving a first control frame via a first antenna pattern of the directional antenna from the remote station, transmitting a first data frame to the remote station, and receiving a second control frame via a second antenna pattern of the directional antenna from the remote station. A signal quality of the first control frame received via the first antenna pattern and a signal quality of the second control frame received via the second antenna pattern are measured. The respective measured signal qualities associated with the first and second antenna patterns are compared.
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。接入点包括用于基于包括多个控制帧和数据帧的分组数据的交换在前向链路中与至少一个远程站进行通信的定向天线。定向天线包括多个天线方向图。该方法包括：从远程站经由定向天线的第一天线方向接收第一控制帧，向远程站发送第一数据帧，并经由定向天线的第二天线方向从远端接收第二控制帧站。测量经由第一天线方向图接收的第一控制帧的信号质量和经由第二天线方向图接收的第二控制帧的信号质量。比较与第一和第二天线图案相关联的相应测量信号质量。

3. 发明授权

US07212499B2 Method and apparatus for antenna steering for WLAN 有权
公开(公告)号：US07212499B2
公开(公告)日：2007-05-01
申请号：US10675563
申请日：2003-09-30
申请人： John E. Hoffmann , George Rodney Nelson, Jr. , John A. Regnier , Kevin P. Johnson
发明人： John E. Hoffmann , George Rodney Nelson, Jr. , John A. Regnier , Kevin P. Johnson
IPC分类号： H04L12/26
CPC分类号： H04B7/088 , H04B17/318
摘要： A Station Management Entity (SME) steers a directional antenna for a station to communicate with an Access Point (AP) in an 802.11 protocol system. The SME can steer the antenna before or after an 802.11 station has authenticated and associated with the Access Point. During a passive scan, the steering process cycles through the available antenna positions and monitors an AP beacon signal to determine a best position based on, for example, a Received Signal Strength Indication (RSSI). During an active scan where access probing is used, the steering process cycles through the antenna positions and monitors a probe response to determine the best antenna position. Additional scans may be performed based on a decision that the received signal level of the currently selected antenna position has dropped below a predetermined threshold.

4. 发明授权

US07047046B2 Antenna steering for an access point based upon probe signals 有权
标题翻译：基于探测信号的接入点天线转向
公开(公告)号：US07047046B2
公开(公告)日：2006-05-16
申请号：US10870696
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： H04B1/38 , H04M1/00
CPC分类号： H04W16/28 , H04B7/0408 , H04B7/0602 , H04B7/0608 , H04W88/08
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 an omni angle and a plurality of directional angles. The method determines a preferred direction to the point the directional antenna from the access point to a desired remote station. This determination is based on a sequence of probe signals exchanged between the access point and the remote station. The probe response signals are measured by the access point, and are stored in an antenna database.
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，并且定向天线包括全方位角度和多个方向角度。该方法确定从定向天线从接入点到期望的远程站的优选方向。该确定基于在接入点和远程站之间交换的探测信号的序列。探头响应信号由接入点测量，并存储在天线数据库中。

5. 发明授权

US07587173B2 Antenna steering for an access point based upon spatial diversity 失效
标题翻译：基于空间分集的接入点的天线导向
公开(公告)号：US07587173B2
公开(公告)日：2009-09-08
申请号：US10870719
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： H04W4/00 , H04B1/18
CPC分类号： H04W16/28 , H04W24/00 , H04W24/10 , H04W84/12 , H04W88/08
摘要： A method for operating an access point in a wireless local area network is provided, wherein the access point includes a directional antenna for communicating with at least one remote station. The method includes communicating with a selected remote station using a current angle of the directional antenna, and scanning an alternate angle from a plurality of alternate angles of the directional antenna for communicating with the selected remote station. Respective signals received via the current angle and the alternate angle from the selected remote station are measured. The current angle or the alternate angle is selected as a preferred angle based upon the measured signals for continuing communications with the selected remote station.
摘要翻译：提供了一种用于在无线局域网中操作接入点的方法，其中所述接入点包括用于与至少一个远程站进行通信的定向天线。该方法包括使用定向天线的当前角度与所选择的远程站进行通信，并且从定向天线的多个交替角度扫描交替角度以与所选择的远程站进行通信。测量经由当前角度接收的相应信号和来自所选远程站的交替角度。基于用于与所选择的远程站的连续通信的测量信号，将当前角度或交替角度选择为优选角度。

6. 发明授权

US07061427B2 Directional antenna physical layer steering for WLAN 失效
标题翻译： WLAN的定向天线物理层转向
公开(公告)号：US07061427B2
公开(公告)日：2006-06-13
申请号：US10675583
申请日：2003-09-30
申请人： John E. Hoffmann , George Rodney Nelson, Jr. , John A. Regnier , Kevin P. Johnson
发明人： John E. Hoffmann , George Rodney Nelson, Jr. , John A. Regnier , Kevin P. Johnson
IPC分类号： H04B7/00
CPC分类号： H01Q21/005 , H01Q1/1257 , H01Q1/2291
摘要： A technique for steering a directional antenna such as may be used in a Wireless Local Area Network (WLAN) device. The technique detects signal parameters during reception of short sync pulses in the very beginning portion of a Packet Protocol Data Unit (PPDU) frame. As a result, the antenna can be steered to an optimum direction for reception prior to receiving other portions of a preamble that may be needed to acquire carrier signal phase and frequency.
摘要翻译：一种用于在无线局域网（WLAN）设备中使用的用于转向定向天线的技术。该技术在分组协议数据单元（PPDU）帧的最初部分接收短同步脉冲期间检测信号参数。结果，在接收可能需要获得载波信号相位和频率的前导码的其他部分之前，可以将天线转向最佳方向进行接收。

7. 发明授权

US07580674B2 Intelligent interface for controlling an adaptive antenna array 失效
标题翻译：用于控制自适应天线阵列的智能接口
公开(公告)号：US07580674B2
公开(公告)日：2009-08-25
申请号：US10378565
申请日：2003-03-03
申请人： Thomas E. Gorsuch , John A. Regnier , John E. Hoffmann , George Rodney Nelson, Jr. , James A. Proctor, Jr.
发明人： Thomas E. Gorsuch , John A. Regnier , John E. Hoffmann , George Rodney Nelson, Jr. , James A. Proctor, Jr.
IPC分类号： H04B7/14 , H04B1/00 , H04B15/00 , H04B1/06 , H04B7/00 , H04B1/38 , H04B7/212 , H04M1/00 , H01Q3/00 , H01Q3/12 , H01Q3/02 , G01S5/04 , H03F3/16
CPC分类号： H01Q1/2275 , H01Q1/22 , H01Q1/2258 , H01Q1/242 , H01Q3/2605 , H01Q19/32
摘要： An antenna control interface is integrated with common integrated circuit components, such as radio transceiver or baseband modem signal processing control logic. The antenna control interface controls the operation of an adaptive antenna array used with wireless communication system devices.
摘要翻译：天线控制接口与通用集成电路组件集成，如无线电收发器或基带调制解调器信号处理控制逻辑。天线控制接口控制与无线通信系统设备一起使用的自适应天线阵列的操作。

8. 发明授权

US08811367B2 Qualifying available reverse link coding rates from access channel power setting 有权
标题翻译：从接入信道功率设置合格的可用的反向链路编码率
公开(公告)号：US08811367B2
公开(公告)日：2014-08-19
申请号：US11295270
申请日：2005-12-06
申请人： George Rodney Nelson, Jr. , James A. Proctor, Jr. , John E. Hoffmann , Antoine J. Rouphael
发明人： George Rodney Nelson, Jr. , James A. Proctor, Jr. , John E. Hoffmann , Antoine J. Rouphael
IPC分类号： H04B7/216
CPC分类号： H04W72/042 , H04J13/00 , H04J13/0003 , H04L5/22 , H04W24/00 , H04W28/22 , H04W48/08 , H04W52/24 , H04W52/26 , H04W52/365 , H04W72/0406 , H04W72/0446 , H04W72/0466 , H04W72/0473 , H04W72/048 , H04W72/1289 , Y02D70/00
摘要： Data rate allocation decisions are made for a communications channel. A message is sent on a communication channel such as on a paging channel. The message indicates a forward Effective Radiate Power (ERP) of a pilot signal transmitted. The remote station then determines the received signal strength of this pilot signal, taking into account receiver gains. The path loss may be estimated as the difference between the forward ERP data value received and the detected received pilot power. This transmit power level information is encoded as a digital data word together with the forward path loss information. Upon transmission, the forward path loss estimate as calculated and the output power value can then help determine the amount of excess power available. This is indicative of the amount of dynamic range available in the transmit power amplifier. Coding rates which require a higher dynamic range may be acceptable for use.
摘要翻译：对通信信道进行数据速率分配决定。在诸如寻呼信道的通信信道上发送消息。该消息表示发送的导频信号的前向有效辐射功率（ERP）。然后，远程站在考虑到接收机增益的情况下确定该导频信号的接收信号强度。可以将路径损耗估计为所接收的前向ERP数据值与检测到的接收导频功率之间的差。该发送功率电平信息与前向路径损耗信息一起被编码为数字数据字。在传输时，计算出的前向路径损耗估计值和输出功率值可以帮助确定可用的多余功率量。这表示发射功率放大器中可用的动态范围的量。需要更高动态范围的编码速率可能是可以接受的。

9. 发明申请

US20090116469A1 Reverse link pilot integrated with block codes 有权
公开(公告)号：US20090116469A1
公开(公告)日：2009-05-07
申请号：US12290755
申请日：2008-11-03
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： H04J13/00
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.

10. 发明授权

US07145964B2 Maximizing data rate by adjusting codes and code rates in CDMA system 有权
公开(公告)号：US07145964B2
公开(公告)日：2006-12-05
申请号：US11264847
申请日：2005-11-02
申请人： John E. Hoffmann , George Rodney Nelson, Jr. , Daniel I. Riley , Antoine J. Rouphael , James A. Proctor, Jr.
发明人： John E. Hoffmann , George Rodney Nelson, Jr. , Daniel I. Riley , Antoine J. Rouphael , James A. Proctor, Jr.
IPC分类号： H04L27/36
CPC分类号： H04L1/0048 , G11B20/1833 , H03M13/35 , H04B1/707 , H04J13/00 , H04L1/0003 , H04L1/0007 , H04L1/0009 , H04L1/0025 , H04L1/1809 , H04L1/1816 , H04L25/14 , H04L27/22 , H04L27/38 , H04L2001/0093 , H04L2001/0096
摘要： The present invention provides for making code rate adjustments and modulation type adjustments in a pseudonoise (PN) encoded CDMA system. Coding rate adjustments may be made by changing the number of information bits per symbol, or Forward Error Code (FEC) coding rate. A forward error correction (FEC) block size is maintained at a constant amount. Therefore, as the number of information bits per symbol are increased, an integer multiple of bits per epoch is always maintained. The scheme permits for a greater flexibility and selection of effective data rates providing information bit rates ranging from, for example, approximately 50 kilobits per second to over 5 mega bits per second (Mbps) in one preferred embodiment.

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