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    N-way Doherty distributed power amplifier
    15.
    发明授权
    N-way Doherty distributed power amplifier 有权
    N路Doherty分布式功率放大器

    公开(公告)号：US07688135B2

    公开(公告)日：2010-03-30

    申请号：US12108507

    申请日：2008-04-23

    Applicant: Wan Jong Kim ,  Kyoung Joon Cho ,  Shawn Patrick Stapleton ,  Jong Heon Kim

    Inventor： Wan Jong Kim ,  Kyoung Joon Cho ,  Shawn Patrick Stapleton ,  Jong Heon Kim

    IPC: H03F3/68

    CPC classification number: H03F1/0288 ,  H03F1/02 ,  H03F1/3223 ,  H03F1/3241 ,  H03F1/56 ,  H03F3/24 ,  H03F3/604 ,  H03F3/607 ,  H04B2001/0425 ,  H04B2001/0441 ,  H04B2001/045

    Abstract: A power amplifier using N-way Doherty structure for extending the efficiency region over the high peak-to-average power ratio of the multiplexing modulated signals such as wideband code division multiple access and orthogonal frequency division multiplexing is disclosed. In an embodiment, the present invention uses a dual-feed distributed structure to an N-way Doherty amplifier to improve the isolation between at least one main amplifier and at least one peaking amplifier and, and also to improve both gain and efficiency performance at high output back-off power. Hybrid couplers can be used at either or both of the input and output. In at least some implementations, circuit space is also conserved due to the integration of amplification, power splitting and combining.

    Abstract translation: 公开了一种使用N路Doherty结构的功率放大器，用于在诸如宽带码分多址和正交频分复用的复用调制信号的高峰值与平均功率比之间扩展效率区域。 在一个实施例中，本发明使用双向馈电分布式结构到N路Doherty放大器，以改善至少一个主放大器与至少一个峰化放大器之间的隔离，并且还提高高电平的增益和效率性能 输出回退电源。 混合耦合器可以在输入和输出中的任一个或两者上使用。 在至少一些实现中，由于放大，功率分配和组合的集成，电路空间也是保守的。

    Software configurable distributed antenna system and method for reducing uplink noise
    16.
    发明授权
    Software configurable distributed antenna system and method for reducing uplink noise 有权
    软件可配置的分布式天线系统和减少上行链路噪声的方法

    公开(公告)号：US08817848B2

    公开(公告)日：2014-08-26

    申请号：US13602818

    申请日：2012-09-04

    Applicant: Paul Lemson ,  Shawn Patrick Stapleton ,  Sasa Trajkovic

    Inventor： Paul Lemson ,  Shawn Patrick Stapleton ,  Sasa Trajkovic

    IPC: H04B3/36 ,  H04B7/17 ,  H04B17/02 ,  H04L25/20 ,  H04L25/52

    CPC classification number: H04B7/04 ,  H04B7/022 ,  H04B10/25753 ,  H04W88/085

    Abstract: A distributed antenna system includes a master unit including a downlink RF input operable to receive an RF input signal from a downlink port of a base station, a first optical port, and a second optical port. The distributed antenna system also includes a first remote unit coupled to the first optical port. The first remote unit comprises a downlink antenna port and a first uplink antenna port and a second remote unit coupled to the second optical port of the master unit. The second remote unit comprises a downlink antenna port and a second uplink antenna port. The master unit is operable to transmit a first RF signal associated with the first RF uplink signal to a first uplink port of the base station and transmit a second RF signal associated with the second RF uplink signal to a second uplink port of the base station.

    Abstract translation: 分布式天线系统包括主单元，其包括可操作以从基站的下行链路端口，第一光端口和第二光端口接收RF输入信号的下行链路RF输入。 分布式天线系统还包括耦合到第一光端口的第一远程单元。 第一远程单元包括下行链路天线端口和第一上行链路天线端口以及耦合到主单元的第二光端口的第二远程单元。 第二远程单元包括下行链路天线端口和第二上行链路天线端口。 主单元可操作地将与第一RF上行链路信号相关联的第一RF信号发送到基站的第一上行链路端口，并将与第二RF上行链路信号相关联的第二RF信号发送到基站的第二上行链路端口。

    Multi-band wideband power amplifier digital predistorition system and method
    18.
    发明申请
    Multi-band wideband power amplifier digital predistorition system and method 有权
    多波段宽带功率放大器数字预失真系统及方法

    公开(公告)号：US20120154038A1

    公开(公告)日：2012-06-21

    申请号：US12928934

    申请日：2010-12-21

    Applicant: Wan Jong Kim ,  Kyoung Joon Cho ,  Shawn Patrick Stapleton

    Inventor： Wan Jong Kim ,  Kyoung Joon Cho ,  Shawn Patrick Stapleton

    IPC: H03F1/26

    CPC classification number: H04B1/0475 ,  H03F1/3247 ,  H03F2200/111 ,  H03F2200/451 ,  H04B1/62 ,  H04L27/2626 ,  H04L27/368

    Abstract: A high performance and cost effective method of RF-digital hybrid mode power amplifier systems with high linearity and high efficiency for multi-frequency band wideband communication system applications is disclosed. The present disclosure enables a power amplifier system to be field reconfigurable and support multiple operating frequency bands on the same PA system over a very wide bandwidth. In addition, the present invention supports multi-modulation schemes (modulation agnostic), multi-carriers and multi-channels.

    Abstract translation: 公开了一种用于多频带宽带通信系统应用的具有高线性度和高效率的RF数字混合模式功率放大器系统的高性能和成本有效的方法。 本公开使得功率放大器系统能够在现场可重新配置并且在非常宽的带宽上支持相同PA系统上的多个工作频带。 此外，本发明支持多调制方案（调制不可知），多载波和多信道。

    Neutral Host Architecture For A Distributed Antenna System
    19.
    发明申请
    Neutral Host Architecture For A Distributed Antenna System 有权
    分布式天线系统的中立主机架构

    公开(公告)号：US20120069880A1

    公开(公告)日：2012-03-22

    申请号：US13211236

    申请日：2011-08-16

    Applicant: Paul Lemson ,  Shawn Patrick Stapleton ,  Sasa Trajko Trajkovic

    Inventor： Paul Lemson ,  Shawn Patrick Stapleton ,  Sasa Trajko Trajkovic

    IPC: H04B1/38

    CPC classification number: H04W72/04 ,  H04B1/18 ,  H04B1/40

    Abstract: A remote radio head unit (RRU) system for achieving high data rate communications in a Distributed Antenna System is disclosed. The Distributed Antenna System is configured as a Neutral Host enabling multiple operators to exist on one DAS system. The present disclosure enables a remote radio head unit to be field reconfigurable and support multi-modulation schemes (modulation-independent), multi-carriers, multi-frequency bands and multi-channels. As a result, the remote radio head system is particularly suitable for wireless transmission systems, such as base-stations, repeaters, and indoor signal coverage systems.

    Abstract translation: 公开了一种用于在分布式天线系统中实现高数据速率通信的远程无线电头单元（RRU）系统。 分布式天线系统配置为中性主机，使多个操作员能够存在于一个DAS系统上。 本公开使得远程无线电头单元能够是现场可重新配置的并且支持多调制方案（与调制无关），多载波，多频带和多信道。 因此，远程无线电头系统特别适用于诸如基站，中继器和室内信号覆盖系统之类的无线传输系统。

    Daisy-Chained Ring of Remote Units For A Distributed Antenna System
    20.
    发明申请
    Daisy-Chained Ring of Remote Units For A Distributed Antenna System 有权
    用于分布式天线系统的远程单元的菊花链

    公开(公告)号：US20120039254A1

    公开(公告)日：2012-02-16

    申请号：US13211247

    申请日：2011-08-16

    Applicant: Shawn Patrick Stapleton ,  Paul Lemson ,  Bin Lin

    Inventor： Shawn Patrick Stapleton ,  Paul Lemson ,  Bin Lin

    IPC: H04W40/00

    CPC classification number: H04W40/02 ,  H03F1/3247 ,  H03F3/24 ,  H03F2200/336 ,  H03F2200/57 ,  H03F2201/3224 ,  H03F2201/3233 ,  H04B1/0475 ,  H04B7/022 ,  H04B2001/0425 ,  H04L25/03343 ,  H04L27/2618 ,  H04L27/362 ,  H04L2025/03414 ,  H04W24/02 ,  H04W24/04 ,  H04W40/00 ,  H04W72/04 ,  H04W72/0453

    Abstract: The present disclosure is a novel utility of a software defined radio (SDR) based Distributed Antenna System (DAS) that is field reconfigurable and support multi-modulation schemes (modulation-independent), multi-carriers, multi-frequency bands and multi-channels. More specifically, the present invention relates to a DAS utilizing one or more Daisy-Chained Rings of Remote Units. The present invention enables a high degree of flexibility to manage, control, enhance, facilitate the usage and performance of a distributed wireless network such as Flexible Simulcast, automatic traffic load-balancing, network and radio resource optimization, network calibration, autonomous/assisted commissioning, carrier pooling, automatic frequency selection, frequency carrier placement, traffic monitoring, traffic tagging, pilot beacon, etc. As a result, a DAS in accordance with the present invention can increase the efficiency and traffic capacity of the operators' wireless network.

    Abstract translation: 本公开是基于软件定义无线电（SDR）的分布式天线系统（DAS）的新颖实用性，其是现场可重配置的并且支持多调制方案（与调制无关），多载波，多频带和多信道 。 更具体地，本发明涉及利用一个或多个远程单元的菊花链的DAS。 本发明能够灵活地管理，控制，增强，促进分布式无线网络的使用和性能，例如灵活的模拟广播，自动流量负载平衡，网络和无线电资源优化，网络校准，自主/辅助调试 载波池，自动频率选择，载频布置，流量监控，流量标签，导频信标等。因此，根据本发明的DAS可以提高运营商的无线网络的效率和流量。

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