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    ACCESS CHANNEL STRUCTURE FOR WIRELESS COMMUNICATION SYSTEM
    3.
    发明申请
    ACCESS CHANNEL STRUCTURE FOR WIRELESS COMMUNICATION SYSTEM 有权
    无线通信系统的访问通道结构

    公开(公告)号：US20090097455A1

    公开(公告)日：2009-04-16

    申请号：US12339969

    申请日：2008-12-19

    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

    CPC分类号： H04L5/0046 ,  H04B1/707 ,  H04B2201/70701 ,  H04L7/041

    摘要： A technique for efficient implementation of pilot signals on a reverse link in a wireless communication system. An access channel is defined for the reverse link such that within each frame, or epoch, a portion is dedicated to sending only pilot symbols. Another portion of the frame is reserved for sending mostly data symbols; however, within this second portion of the frame, additional pilot symbols are interleaved among the data symbols. The pilot symbol or preamble portion of the access channel frame allows for efficient acquisition of the access signal at the base station, while providing a timing reference for determining the effects of multipath fading. In particular, a pilot correlation filter provides a phase estimate from the pilot symbols in the preamble portion, which is then used to decode the data symbols in the payload portion. An access acquisition portion of the receiver uses the phase estimates provided by the pilot correlation filter to process the output of a data symbol correlation filter. The additional pilot symbols embedded in the payload portion are used in a cross product operation to further resolve the effects of multipath fading.

    摘要翻译： 一种在无线通信系统中在反向链路上有效实现导频信号的技术。 为反向链路定义了一个接入信道，使得在每个帧或时期内，一部分专用于仅发送导频符号。 帧的另一部分保留用于主要发送数据符号; 然而，在帧的该第二部分内，在数据符号之间交织附加的导频符号。 访问信道帧的导频符号或前导码部分允许在基站处有效地获取接入信号，同时提供用于确定多径衰落的影响的定时参考。 具体地，导频相关滤波器从前导码部分中的导频符号提供相位估计，然后该导频符号用于解码有效载荷部分中的数据符号。 接收机的访问获取部分使用由导频相关滤波器提供的相位估计来处理数据符号相关滤波器的输出。 嵌入在有效载荷部分中的附加导频符号用于交叉乘积运算，以进一步解决多路径衰落的影响。

    MAINTAINING A MAINTENANCE CHANNEL IN A REVERSE LINK OF A WIRELESS COMMUNICATIONS SYSTEM
    6.
    发明申请
    MAINTAINING A MAINTENANCE CHANNEL IN A REVERSE LINK OF A WIRELESS COMMUNICATIONS SYSTEM 有权
    维护无线通信系统反向链路中的维护通道

    公开(公告)号：US20120134341A1

    公开(公告)日：2012-05-31

    申请号：US13367093

    申请日：2012-02-06

    申请人： James A. Proctor, JR. ,  George Rodney Nelson, JR.

    发明人： James A. Proctor, JR. ,  George Rodney Nelson, JR.

    IPC分类号： H04W72/04 ,  H04B7/216 ,  H04J13/16 ,  H04J3/00

    CPC分类号： H04W52/18 ,  H04L5/0091 ,  H04W52/0216 ,  H04W52/12 ,  H04W52/287 ,  H04W52/325 ,  H04W72/12 ,  H04W74/04 ,  H04W74/0866 ,  H04W76/25 ,  Y02D70/1222

    摘要： In a reverse link of a wireless CDMA communication system, a method of maintaining an idling mode connection between a field unit and a base transceiver station is provided using various techniques to maintain the idle mode connection at a reduced power level. A preferred embodiment computes a time slot or frame offset based on modulo function using a field unit identifier in order to distribute field unit maintenance transmissions among available slots or offsets. An alternate embodiment detects explicit signaling states changes at the physical layer and causes power target changes. A further embodiment transmits maintenance data during predetermined time intervals, coordinated between the field units and BTS, allowing power levels to be adjusted accordingly.

    摘要翻译： 在无线CDMA通信系统的反向链路中，使用各种技术来提供在场单元和基站之间维持空闲模式连接的方法，以将空闲模式连接维持在降低的功率电平。 优选实施例使用字段单元标识符基于模函数计算时隙或帧偏移，以便在可用时隙或偏移之间分配现场单元维护传输。 替代实施例检测物理层处的显式信令状态改变并且引起功率目标改变。 另一实施例在预定的时间间隔内发送维护数据，在现场单元和BTS之间协调，从而允许相应地调整功率电平。

    Method for Mitigating Adverse Processor Loading in a Personal Computer Implementation of a Wireless Local Area Network Adapter
    8.
    发明申请
    Method for Mitigating Adverse Processor Loading in a Personal Computer Implementation of a Wireless Local Area Network Adapter 审中-公开
    一种减轻无线局域网适配器个人计算机不利处理器加载的方法

    公开(公告)号：US20100208612A1

    公开(公告)日：2010-08-19

    申请号：US12772268

    申请日：2010-05-03

    申请人： Richard Douglas Schultz ,  George Rodney Nelson, JR. ,  John Erich Hoffmann

    发明人： Richard Douglas Schultz ,  George Rodney Nelson, JR. ,  John Erich Hoffmann

    IPC分类号： H04L12/26

    CPC分类号： H04L43/16 ,  H04L43/0894

    摘要： A personal computer's (PC) microprocessor is used to provide both the physical layer (PHY) and media access control (MAC) processing functions required to implement a wireless local area network (WLAN) adapter. This technique uses the polling mechanism associated with the power save (PS) functionality of WLAN protocol to relieve networking stress on the host processing system. It does this while maintaining networking integrity and packet delivery. The WLAN protocol polling mechanism is used to briefly inhibit the transfer of packets from the WLAN access point (AP) during peak periods of network traffic and/or host processor loading. Because the modulation, demodulation, and MAC functions, typically implemented in dedicated hardware on existing adapters are implemented in software running on the host PC microprocessor, other host system processes and applications can interfere with these time critical functions. Conversely, latency introduced by WLAN specific processing tasks during peak periods of network traffic may cause unacceptable delays to the other processes and applications requiring microprocessor attention. In addition to its primary stated purpose of allowing WLAN mobile stations to save power, this technique will use power save polling as a method for controlling delivery of network packets when the host is heavily loaded or when peak interrupt latencies make reliable packet delivery difficult or impossible.

    摘要翻译： 个人计算机（PC）微处理器用于提供实现无线局域网（WLAN）适配器所需的物理层（PHY）和媒体访问控制（MAC）处理功能。 该技术使用与WLAN协议的功率节省（PS）功能相关联的轮询机制来减轻主机处理系统上的网络压力。 它同时保持网络完整性和数据包传输。 WLAN协议轮询机制用于在网络流量和/或主处理器加载的高峰期期间短暂禁止从WLAN接入点（AP）传送数据包。 由于通常在现有适配器上的专用硬件中实现的调制，解调和MAC功能在主机PC微处理器上运行的软件中实现，所以其他主机系统进程和应用程序可能会干扰这些时间关键功能。 相反，由网络流量高峰期的WLAN特定处理任务引入的延迟可能会对需要微处理器注意的其他进程和应用程序造成不可接受的延迟。 除了主要规定的允许WLAN移动台节省电力的目的之外，该技术还将使用省电轮询作为在主机严重加载时控制网络分组传送的方法，或者当峰值中断延迟使得可靠的分组传送困难或不可能时 。

    TECHNIQUES FOR SETTING UP TRAFFIC CHANNELS IN A COMMUNICATIONS SYSTEM
    9.
    发明申请
    TECHNIQUES FOR SETTING UP TRAFFIC CHANNELS IN A COMMUNICATIONS SYSTEM 有权
    在通信系统中设置交通信道的技术

    公开(公告)号：US20090225718A1

    公开(公告)日：2009-09-10

    申请号：US12402813

    申请日：2009-03-12

    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： H04W72/00

    CPC分类号： H04W72/0446 ,  H04W68/00 ,  H04W72/0406 ,  H04W74/04 ,  H04W76/10

    摘要： A control channel supporting traffic control in epochs is divided into two control subchannels each being less than or equal to about a half epoch in duration and occurring serially in time. Slot allocation data may be transmitted and received independently over the subchannels. One subchannel may be used for transmitting forward slot allocation data and the other subchannel may be used for transmitting reverse slot allocation data. The channel split into two subchannels may be a paging channel. The forward and reverse slot allocation data may be transmitted between a base station processor and field unit. Forward and reverse traffic data may be staggered by at least about half an epoch. Transmission of traffic data happens within about two epochs after the assignments.

    摘要翻译： 支持时代中的交通控制的控制信道被分成两个控制子信道，每个控制子信道的持续时间小于或等于约一半的时期，并且以时间顺序发生。 时隙分配数据可以通过子信道独立发送和接收。 一个子信道可以用于发送前向时隙分配数据，而另一个子信道可以用于发送反向时隙分配数据。 分成两个子信道的信道可以是寻呼信道。 前向和反向时隙分配数据可以在基站处理器和现场单元之间传输。 正向和反向交通数据可以交错至少约一半的时期。 交通数据的传输发生在分配后大约两个时期。