公开(公告)号：US20120195277A1

公开(公告)日：2012-08-02

申请号：US13444274

申请日：2012-04-11

申请人： Sungki PARK ,  Durga Prasad SATAPATHY ,  Walter RAUSCH

发明人： Sungki PARK ,  Durga Prasad SATAPATHY ,  Walter RAUSCH

IPC分类号： H04W72/04

CPC分类号： H04W88/10 ,  H04B7/0417 ,  H04B7/063 ,  H04B7/0689 ,  H04L1/0003 ,  H04L1/0015 ,  H04L1/0025 ,  H04W72/085

摘要： A system and method of a hybrid scheme of DL link adaptation in a network having mobile stations (MSs) in communication with a base station (BS). The system may include a mode decision module associated with the base station. The mode decision module may include one or more processors configured to select a first mode configuration for use during transmission of a first communication from the base station. The BS may receive first feedback information associated with the first communication, where the first feedback information includes a first mode recommendation and first channel information. Based on the first feedback information, the BS may generate a BS-derived mode configuration based on the first channel information and compare the first mode recommendation and the BS-derived mode configuration. Based on the comparison, the BS may determine a second mode configuration to use to configure a second communication.

摘要翻译： 具有与基站（BS）通信的移动台（MS）的网络中的DL链路适配的混合方案的系统和方法。 系统可以包括与基站相关联的模式决定模块。 模式决定模块可以包括被配置为选择第一模式配置的一个或多个处理器，用于在从基站发送第一通信期间使用。 BS可以接收与第一通信相关联的第一反馈信息，其中第一反馈信息包括第一模式推荐和第一信道信息。 基于第一反馈信息，BS可以基于第一信道信息生成BS派生模式配置，并比较第一模式推荐和BS派生模式配置。 基于比较，BS可以确定用于配置第二通信的第二模式配置。

公开(公告)号：US08175051B2

公开(公告)日：2012-05-08

申请号：US12474872

申请日：2009-05-29

申请人： Sungki Park ,  Durga Prasad Satapathy ,  Walter Rausch

发明人： Sungki Park ,  Durga Prasad Satapathy ,  Walter Rausch

IPC分类号： H04W4/00

CPC分类号： H04W88/10 ,  H04B7/0417 ,  H04B7/063 ,  H04B7/0689 ,  H04L1/0003 ,  H04L1/0015 ,  H04L1/0025 ,  H04W72/085

摘要： A system and method of a hybrid scheme of DL link adaptation in a network having mobile stations (MSs) in communication with a base station (BS). The system may include a mode decision module associated with the base station. The mode decision module may include one or more processors configured to select a first mode configuration for use during transmission of a first communication from the base station. The BS may receive first feedback information associated with the first communication, where the first feedback information includes a first mode recommendation and first channel information. Based on the first feedback information, the BS may generate a BS-derived mode configuration based on the first channel information and compare the first mode recommendation and the BS-derived mode configuration. Based on the comparison, the BS may determine a second mode configuration to use to configure a second communication.

摘要翻译： 具有与基站（BS）通信的移动台（MS）的网络中的DL链路适配的混合方案的系统和方法。 系统可以包括与基站相关联的模式决定模块。 模式决定模块可以包括被配置为选择第一模式配置的一个或多个处理器，用于在从基站发送第一通信期间使用。 BS可以接收与第一通信相关联的第一反馈信息，其中第一反馈信息包括第一模式推荐和第一信道信息。 基于第一反馈信息，BS可以基于第一信道信息生成BS派生模式配置，并比较第一模式推荐和BS派生模式配置。 基于比较，BS可以确定用于配置第二通信的第二模式配置。

公开(公告)号：US20100315978A1

公开(公告)日：2010-12-16

申请号：US12481697

申请日：2009-06-10

申请人： Durga P. Satapathy ,  Walter Rausch

发明人： Durga P. Satapathy ,  Walter Rausch

IPC分类号： H04L5/14

CPC分类号： H04L5/1469 ,  H01Q1/246 ,  H01Q21/08 ,  H01Q23/00 ,  H03G3/02 ,  H03G3/3052 ,  H04L27/08

摘要： In various embodiments, a system and method for improving a noise figure (NF) of a time division duplex (TDD) communications system includes a pre-amplified antenna unit having a plurality of antennas and associated low-noise amplifiers (LNA). Each of the associated LNA's is arranged to receive signals from a phase-matched pair of antennas selected from the plurality of antennas. For each of the phase-matched antenna pairs, a variable negative gain circuit may be coupled to a TDD signal output of the associated LNA such that a remote radio head (RRH) may be suitably coupled to an output of the variable gain circuit. The variable gain circuit is configured to provide a negative gain to the TDD signal appropriate to ensure that a dynamic range of the RRH is not reduced from a desired dynamic range due to excess gain provided by the LNA. A method of retrofitting a conventional pre-amplified antenna unit includes inserting a variable negative gain circuit so that the modified pre-amplified antenna may be used with any vendor's RRH.

摘要翻译： 在各种实施例中，用于改进时分双工（TDD）通信系统的噪声系数（NF）的系统和方法包括具有多个天线和相关联的低噪声放大器（LNA）的预放大天线单元。 每个相关联的LNA被布置成从从多个天线中选择的相位匹配的天线对接收信号。 对于每个相位匹配天线对，可变负增益电路可以耦合到相关LNA的TDD信号输出，使得远程无线电头（RRH）可以适当地耦合到可变增益电路的输出。 可变增益电路被配置为向TDD信号提供负增益，其适于确保RRH的动态范围不会由于由LNA提供的超额增益而从期望的动态范围减小。 改进常规预放大天线单元的方法包括插入可变负增益电路，使得修改的预放大天线可以与任何供应商的RRH一起使用。

公开(公告)号：US08451814B2

公开(公告)日：2013-05-28

申请号：US12814206

申请日：2010-06-11

申请人： Walter Rausch ,  Harry Perlow

发明人： Walter Rausch ,  Harry Perlow

IPC分类号： H04W4/00 ,  H04J3/06

CPC分类号： H04W56/0015 ,  H04H20/71 ,  H04H20/86 ,  H04H60/68 ,  H04W56/00 ,  H04W56/0065 ,  H04W72/005

摘要： Disclosed herein are methods and systems that may help a WiMAX base station function without a GPS signal by providing a high-stability reference signal via a subcarrier of a broadcast signal, such as an FM radio signal. An exemplary broadcast station may therefore be configured to phase-lock a subcarrier signal to a GPS signal, and include this subcarrier in its broadcast signal, thereby providing the subcarrier signal for use by a base station as a high-stability reference signal for local-oscillator stabilization at the base station. The broadcast station may further modulate a timing signal onto the subcarrier signal. An exemplary base station may therefore receive the broadcast signal, decode the broadcast signal to acquire the subcarrier signal, and use the subcarrier signal to stabilize its local oscillator, rather than using a GPS signal. The base station may further demodulate the subcarrier to acquire the timing signal, which the base station may use for frame-start synchronization, instead of a GPS signal.

摘要翻译： 这里公开的方法和系统可以通过经由诸如FM无线电信号的广播信号的子载波提供高稳定性参考信号来帮助WiMAX基站而没有GPS信号。 因此，示例性广播站可以被配置为将副载波信号相位锁定到GPS信号，并且将该子载波包括在其广播信号中，从而提供用于基站的子载波信号作为用于本地 - 振荡器稳定在基站。 广播台还可以将定时信号调制到子载波信号上。 因此，示例性基站可以接收广播信号，解码广播信号以获取副载波信号，并且使用副载波信号来稳定其本地振荡器，而不是使用GPS信号。 基站可以进一步解调副载波以获取基站可以用于帧开始同步的定时信号，而不是GPS信号。

公开(公告)号：US08391875B1

公开(公告)日：2013-03-05

申请号：US12035783

申请日：2008-02-22

申请人： Durga Satapathy ,  Ivy Kelly ,  Walter Rausch

发明人： Durga Satapathy ,  Ivy Kelly ,  Walter Rausch

IPC分类号： H04W40/00 ,  H04B7/14

CPC分类号： H04W72/042 ,  H04B7/0413 ,  H04L1/0618 ,  H04L2001/0097 ,  H04W88/085

摘要： Disclosed herein is a method and system for extending MIMO service in a wireless communications system. The system comprises a base station, a remote system, and a host system communicatively coupled to the base station and the remote system. The base station is configured to generate, from a baseband signal, a downlink signal comprising a plurality of downlink signal streams, including at least a first downlink signal stream and a second downlink signal stream. Accordingly, the base station may include a first and a second antenna that are configured to transmit the first and second downlink signal streams, respectively. The remote system provides wireless service in a remote coverage area. Further, the remote system is configured to transmit a downlink signal as a plurality of downlink signal streams. The host system is communicatively coupled to the base station and to the remote system and configured to relay the downlink signal streams from the base station to the remote system.

摘要翻译： 这里公开了一种用于在无线通信系统中扩展MIMO服务的方法和系统。 该系统包括基站，远程系统和通信地耦合到基站和远程系统的主机系统。 基站被配置为从基带信号生成包括至少第一下行链路信号流和第二下行链路信号流的包括多个下行链路信号流的下行链路信号。 因此，基站可以包括分别被发送第一和第二下行链路信号流的第一和第二天线。 远程系统在远程覆盖区域提供无线服务。 此外，远程系统被配置为发送下行链路信号作为多个下行链路信号流。 主机系统通信地耦合到基站和远程系统，并且被配置为将下行链路信号流从基站中继到远程系统。

公开(公告)号：US08189525B2

公开(公告)日：2012-05-29

申请号：US12488271

申请日：2009-06-19

申请人： Sungki Park ,  Durga P. Satapathy ,  Walter Rausch

发明人： Sungki Park ,  Durga P. Satapathy ,  Walter Rausch

IPC分类号： H04Q7/00

CPC分类号： H04W72/0453 ,  H04W48/20

摘要： A system and method for reducing an initial network entry and/or handover (INE/HO) Link Budget (LB) Bottleneck in a communications network, for example, a Worldwide Interoperability for Microwave Access (WiMAX) network described in the IEEE 802.16 specification, is arranged such that a Base Station (BS) may allocate bandwidth with repetition across at least two frames on Initial Network Entry/Handover (INE/HO) by a Mobile Station. By doing so, the BS may achieve increased system gain on INE, while reducing the number of subchannels conventionally associated with repetition, thereby reducing the system noise floor during INE/HO.

摘要翻译： 用于减少通信网络中的初始网络进入和/或切换（INE / HO）链路预算（LB）瓶颈的系统和方法，例如IEEE 802.16规范中描述的全球微波接入互操作性（WiMAX）网络， 被布置为使得基站（BS）可以通过移动站在初始网络进入/切换（INE / HO）上的至少两个帧上分配重复带宽。 通过这样做，BS可以在INE上实现增加的系统增益，同时减少通常与重复相关联的子信道的数量，从而在INE / HO期间降低系统本底噪声。

公开(公告)号：US4876288A

公开(公告)日：1989-10-24

申请号：US35636

申请日：1987-04-07

申请人： Walter Herding ,  Walter Rausch

发明人： Walter Herding ,  Walter Rausch

IPC分类号： C12N11/02 ,  B01D53/02 ,  B01D53/85 ,  B01J20/28 ,  C02F3/10 ,  C12N11/08 ,  C12N11/14

CPC分类号： B01D53/02 ,  B01D53/85 ,  C02F3/10 ,  Y02W10/15 ,  Y10S210/908

摘要： Carrier material for the immobilization of microorganisms, particularly for use in connection with microbiological conversion and/or separation of constituents from gaseous or liquid media, is disclosed. The carrier material comprises a dimensionally stable macroporous skeleton comprised of relatively coarse-grain granular material such as sinterable thermoplastic granules, and relatively fine grain microporous material, such as activated charcoal, which are bonded together. The carrier material thus comprises both macropores having a pore size of from about 10 to 200 .mu.m and micropores having a pore size of up to about 0.1 .mu.m depending upon the identity of the five grain microporous material that is used. Additional finely divided materials, such as catalytic agents or density modifying agents, may also be disposed within the macroporous skeleton. The preparation and use of the carrier material is also disclosed.

摘要翻译： 公开了用于固定微生物的载体材料，特别是用于微生物转化和/或从气态或液体介质中分离成分的微生物。 载体材料包括由诸如可烧结热塑性颗粒的相对粗粒状颗粒材料和结合在一起的相对细微粒状微孔材料（例如活性炭）组成的尺寸稳定的大孔骨架。 因此，载体材料因此包含孔径为约10-200μm的两个大孔和孔径至多约0.1μm的微孔，这取决于所使用的五粒微孔材料的特性。 还可以在大孔骨架内设置另外的细碎材料，例如催化剂或密度调节剂。 还公开了载体材料的制备和使用。

公开(公告)号：US08503368B2

公开(公告)日：2013-08-06

申请号：US13023269

申请日：2011-02-08

申请人： Walter Rausch ,  Durga Satapathy

发明人： Walter Rausch ,  Durga Satapathy

IPC分类号： H04W4/00

CPC分类号： H04W56/002 ,  G01S5/021 ,  G01S5/0242 ,  G01S5/08 ,  H04B17/318 ,  H04W56/0045 ,  H04W56/005 ,  H04W88/08

摘要： Exemplary methods and systems may generally be implemented to allow a macro-network base station without access to a GPS reference signal to provide some or all of the functionality for which existing macro-network base stations typically rely on GPS. In a first aspect, an exemplary macro-network base station may determine its location using a location-determination technique that is based upon the angles of arrival of FM radio signals from nearby FM stations. In a second aspect, an exemplary macro-network base station may stabilize its local oscillator by phase-locking its local oscillator to an FM radio signal, and periodically adjusting its local oscillator to account for phase drift of the FM radio signal. And in a third aspect, an exemplary macro-network base station may synchronize its frame-start timing with a nearby base station using a frame-start timing signal that the base station has synchronized to frame transmissions from the nearby base station during a setup routine.

摘要翻译： 通常可以实现示例性方法和系统以允许宏网基站不访问GPS参考信号来提供现有宏网基站通常依赖于GPS的一些或所有功能。 在第一方面，示例性宏网基站可以使用基于来自附近FM站的FM无线电信号的到达角度的位置确定技术来确定其位置。 在第二方面，示例性宏网基站可以通过将其本地振荡器相位锁定到FM无线电信号来稳定其本地振荡器，并周期性地调整其本地振荡器以考虑FM无线电信号的相位漂移。 并且在第三方面中，示例性宏网基站可以使用基站已经同步的帧开始定时信号来将其帧起始定时与附近的基站同步，以在建立程序期间从附近的基站帧传输 。

公开(公告)号：US20110305146A1

公开(公告)日：2011-12-15

申请号：US12814206

申请日：2010-06-11

申请人： Walter Rausch ,  Harry Perlow

发明人： Walter Rausch ,  Harry Perlow

IPC分类号： H04J1/16 ,  H04H20/71

CPC分类号： H04W56/0015 ,  H04H20/71 ,  H04H20/86 ,  H04H60/68 ,  H04W56/00 ,  H04W56/0065 ,  H04W72/005

摘要： Disclosed herein are methods and systems that may help a WiMAX base station function without a GPS signal by providing a high-stability reference signal via a subcarrier of a broadcast signal, such as an FM radio signal. An exemplary broadcast station may therefore be configured to phase-lock a subcarrier signal to a GPS signal, and include this subcarrier in its broadcast signal, thereby providing the subcarrier signal for use by a base station as a high-stability reference signal for local-oscillator stabilization at the base station. The broadcast station may further modulate a timing signal onto the subcarrier signal. An exemplary base station may therefore receive the broadcast signal, decode the broadcast signal to acquire the subcarrier signal, and use the subcarrier signal to stabilize its local oscillator, rather than using a GPS signal. The base station may further demodulate the subcarrier to acquire the timing signal, which the base station may use for frame-start synchronization, instead of a GPS signal.

摘要翻译： 这里公开的方法和系统可以通过经由诸如FM无线电信号的广播信号的子载波提供高稳定性参考信号来帮助WiMAX基站而没有GPS信号。 因此，示例性广播站可以被配置为将副载波信号相位锁定到GPS信号，并且将该子载波包括在其广播信号中，从而提供用于基站的子载波信号作为用于本地 - 振荡器稳定在基站。 广播台还可以将定时信号调制到子载波信号上。 因此，示例性基站可以接收广播信号，解码广播信号以获取副载波信号，并且使用副载波信号来稳定其本地振荡器，而不是使用GPS信号。 基站可以进一步解调副载波以获取基站可以用于帧开始同步的定时信号，而不是GPS信号。

公开(公告)号：US08488548B2

公开(公告)日：2013-07-16

申请号：US13444274

申请日：2012-04-11

申请人： Sungki Park ,  Durga Prasad Satapathy ,  Walter Rausch

发明人： Sungki Park ,  Durga Prasad Satapathy ,  Walter Rausch

IPC分类号： H04W4/00

CPC分类号： H04W88/10 ,  H04B7/0417 ,  H04B7/063 ,  H04B7/0689 ,  H04L1/0003 ,  H04L1/0015 ,  H04L1/0025 ,  H04W72/085

摘要： A system and method of a hybrid scheme of DL link adaptation in a network having mobile stations (MSs) in communication with a base station (BS). The system may include a mode decision module associated with the base station. The mode decision module may include one or more processors configured to select a first mode configuration for use during transmission of a first communication from the base station. The BS may receive first feedback information associated with the first communication, where the first feedback information includes a first mode recommendation and first channel information. Based on the first feedback information, the BS may generate a BS-derived mode configuration based on the first channel information and compare the first mode recommendation and the BS-derived mode configuration. Based on the comparison, the BS may determine a second mode configuration to use to configure a second communication.