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1. 发明授权

US09325547B2 Preamble identification in a mobile DTV system 有权
标题翻译：移动DTV系统中的前导码识别
公开(公告)号：US09325547B2
公开(公告)日：2016-04-26
申请号：US13505329
申请日：2009-11-13
申请人： Ivonete Markman , Wen Gao , Richard W. Citta
发明人： Ivonete Markman , Wen Gao , Richard W. Citta
IPC分类号： H04N7/26 , H04L27/02 , H04L1/00 , H04L25/03 , H04N21/2383 , H04N21/438
CPC分类号： H04L27/02 , H04L1/0041 , H04L25/03171 , H04N21/2383 , H04N21/4382
摘要： A preamble identifier flag in a reserved portion of a data field synchronization segment in a digital television (DTV) data field identifies the presence of preamble training data in a forward error correction (FEC) encoded portion of the DTV data field. The data field synchronization segment is not FEC encoded, thereby allowing detection of the preamble identifier flag without FEC decoding. The detection at a receiver of the preamble identifier flag in a DTV data field allows receiver elements, such as an equalizer and a FEC decoder, to more readily obtain and utilize the preamble training data, thereby enhancing reception and/or simplifying receiver design.
摘要翻译：数字电视（DTV）数据字段中的数据字段同步段的保留部分中的前同步码标识符标识在DTV数据字段的前向纠错（FEC）编码部分中存在前同步码训练数据。数据字段同步段不进行FEC编码，从而允许检测前导码标识符标志而不进行FEC解码。在DTV数据字段中的前导标识符标志的接收机处的检测允许诸如均衡器和FEC解码器的接收器元件更容易地获得和利用前导码训练数据，从而增强接收和/或简化接收机设计。

2. 发明申请

US20120219071A1 PREAMBLE IDENTIFICATION IN A MOBILE DTV SYSTEM 有权
标题翻译：移动数字电视系统中的前瞻性识别
公开(公告)号：US20120219071A1
公开(公告)日：2012-08-30
申请号：US13505329
申请日：2009-11-13
申请人： Ivonete Markman , Wen Gao , Richard W. Citta
发明人： Ivonete Markman , Wen Gao , Richard W. Citta
IPC分类号： H04N7/26
CPC分类号： H04L27/02 , H04L1/0041 , H04L25/03171 , H04N21/2383 , H04N21/4382
摘要： A preamble identifier flag in a reserved portion of a data field synchronization segment in a digital television (DTV) data field identifies the presence of preamble training data in a forward error correction (FEC) encoded portion of the DTV data field. The data field synchronization segment is not FEC encoded, thereby allowing detection of the preamble identifier flag without FEC decoding. The detection at a receiver of the preamble identifier flag in a DTV data field allows receiver elements, such as an equalizer and a FEC decoder, to more readily obtain and utilize the preamble training data, thereby enhancing reception and/or simplifying receiver design.
摘要翻译：数字电视（DTV）数据字段中的数据字段同步段的保留部分中的前同步码标识符标识在DTV数据字段的前向纠错（FEC）编码部分中存在前同步码训练数据。数据字段同步段不进行FEC编码，从而允许检测前导码标识符标志而不进行FEC解码。在DTV数据字段中的前导标识符标志的接收机处的检测允许诸如均衡器和FEC解码器的接收器元件更容易地获得和利用前导码训练数据，从而增强接收和/或简化接收机设计。

3. 发明授权

US09237449B2 Autocorrelation-based spectrum sensing for FM signals 有权
标题翻译：用于FM信号的基于自相关的频谱感测
公开(公告)号：US09237449B2
公开(公告)日：2016-01-12
申请号：US13514584
申请日：2009-12-21
申请人： Wen Gao , Hou-Shin Chen
发明人： Wen Gao , Hou-Shin Chen
IPC分类号： H04B1/18 , H04W16/10 , H04L27/10 , G06F3/033 , H04B1/16
CPC分类号： H04W16/10 , H04L27/10
摘要： A method and system for detection of available a white space channel in an area of licensed transmitters includes a detector which utilizes the autocorrelation analysis of a channel in an frequency modulated (FM) band. Calculation of the autocorrelation excludes an initial set of correlation delay values such that large values of autocorrelation are removed. The remaining autocorrelation based on higher correlation delay values exposes the sinusoidal nature of an FM transmitter operating in the selected channel. White space becomes available to a user if no transmitter is detected using the autocorrelation detection method.
摘要翻译：用于在许可发射机的区域中检测可用的空白信道的方法和系统包括利用频率调制（FM）频带中的信道的自相关分析的检测器。自相关的计算排除了初始的相关延迟值集合，从而消除了大的自相关值。基于较高相关延迟值的剩余自相关显示在所选频道中操作的FM发射机的正弦特性。如果没有使用自相关检测方法检测到发射机，则空白可用于用户。

4. 发明授权

US09191937B2 Methods and apparatus for access, enablement and control by devices in TV white space 有权
标题翻译：用于电视空白设备访问，启用和控制的方法和装置
公开(公告)号：US09191937B2
公开(公告)日：2015-11-17
申请号：US13702398
申请日：2011-06-22
申请人： Hou-Shin Chen , Wen Gao
发明人： Hou-Shin Chen , Wen Gao
IPC分类号： H04W4/00 , H04W72/04 , H04W48/10 , H04W16/14
CPC分类号： H04W16/14 , H04W48/10 , H04W72/042 , H04W74/04
摘要： Methods and apparatus for access, enablement and control of devices in TV white space are provided. Methods and apparatus for channel scanning by a device are provided that shorten channel scanning time by using a 5 MHz Measurement Pilot frame at a predetermined location within an enabling device's channel, regardless of the operating bandwidth of the enabling device. Also provided are methods and apparatus for multi-band dynamic station enablement that locate information regarding an enabling device's supported regulatory classes and channel numbers within one accessible frame of information and also provide request and response messages to arrange for enablement of a requesting device on a network. Further, methods and apparatus are provided for identifying an interfering device on a network by providing increased information from within a DSE Registered Location element.
摘要翻译：提供了电视空白设备访问，启用和控制的方法和设备。提供了一种通过设备进行信道扫描的方法和装置，其通过在启用设备的信道内的预定位置处使用5MHz测量导频帧来缩短信道扫描时间，而不管启用设备的工作带宽如何。还提供了用于多频段动态站启用的方法和装置，其在一个可访问的信息框架内定位关于启用设备的支持的监管类别和信道号的信息，并且还提供请求和响应消息以安排在网络上启用请求设备。此外，提供了通过从DSE注册位置元素内提供增加的信息来识别网络上的干扰设备的方法和装置。

5. 发明授权

US09185455B2 Method and apparatus for using 802.11 WLANs in TV white space 有权
标题翻译：在无线电空间中使用802.11 WLAN的方法和装置
公开(公告)号：US09185455B2
公开(公告)日：2015-11-10
申请号：US13577663
申请日：2011-02-16
申请人： Hou-Shin Chen , Wen Gao
发明人： Hou-Shin Chen , Wen Gao
IPC分类号： H04W4/00 , H04N21/438 , H04N21/2381 , H04N21/2383 , H04N21/2385 , H04N21/4363 , H04N21/4402
CPC分类号： H04N21/4382 , H04N21/2381 , H04N21/2383 , H04N21/2385 , H04N21/43637 , H04N21/440218
摘要： A method and apparatus for using 802.11 Wireless LANs in TV white space are provided that additionally allows coexistence with non-802.11 devices in the same spectrum space. The method and apparatus extend concepts used in traditional 802.11 applications in the MAC and PHY layers so that WLANs can function over TV white space channels. The method and apparatus also facilitates coexistence of non 802.11 devices and existence with other 802.11 applications by extending the Enhanced Distributed Channel Access mechanism used to provide quality of service. An OFDM system with fixed subcarrier spacing is suggested to accommodate spectrum characteristics (variable center frequency and channel bandwidth) of the TVWS.
摘要翻译：提供了一种在TV空白区域中使用802.11无线LAN的方法和装置，该方法和装置还允许与相同频谱空间中的非802.11设备共存。该方法和装置扩展了在MAC和PHY层中传统802.11应用中使用的概念，使得WLAN可以在TV空白信道上运行。该方法和装置还通过扩展用于提供服务质量的增强型分布式信道访问机制来促进非802.11设备的共存和与其他802.11应用的存在。建议具有固定子载波间隔的OFDM系统以适应TVWS的频谱特性（可变中心频率和信道带宽）。

6. 发明授权

US09049071B2 System and method for controlling configuration settings for mobile communication devices and services 有权
标题翻译：用于控制移动通信设备和服务的配置设置的系统和方法
公开(公告)号：US09049071B2
公开(公告)日：2015-06-02
申请号：US13563926
申请日：2012-08-01
申请人： James A. Godfrey , Denny K. Chiu , Wen Gao
发明人： James A. Godfrey , Denny K. Chiu , Wen Gao
IPC分类号： H04L29/06 , H04L29/08
CPC分类号： H04L63/083 , H04L29/06 , H04L41/082 , H04L51/00 , H04L51/10 , H04L63/20 , H04L67/04 , H04L67/10 , H04L67/2804 , H04L67/2819 , H04L67/42 , H04L69/329 , H04W8/183
摘要： A method for implementing policy settings in a user device comprising a plurality of applications, wherein the policy settings comprise at least one application policy setting for managing at least one of the plurality of applications and at least one client policy setting for managing the user device, the method comprising determining a set of policy settings for the user device, providing an update of the policy settings and causing implementation of the policy settings by the user device, to control management of the at least one of the plurality of applications and management of the user device.
摘要翻译：一种用于在包括多个应用的用户设备中实现策略设置的方法，其中所述策略设置包括用于管理所述多个应用中的至少一个的至少一个应用策略设置和用于管理所述用户设备的至少一个客户端策略设置，所述方法包括确定所述用户设备的一组策略设置，提供所述策略设置的更新并且引起所述用户设备执行所述策略设置，以控制所述多个应用中的至少一个应用的管理以及所述用户设备的管理用户设备。

7. 发明授权

US08588115B2 Apparatus for controlling channel switching in wireless networks 有权
标题翻译：用于控制无线网络中的信道切换的装置
公开(公告)号：US08588115B2
公开(公告)日：2013-11-19
申请号：US12087557
申请日：2006-12-19
申请人： Wen Gao , Hang Liu
发明人： Wen Gao , Hang Liu
IPC分类号： H04B7/00 , G08C17/00 , H04W4/00 , H04J3/06
CPC分类号： H04W72/085 , H04W16/14
摘要： The invention provides apparatus methods for avoiding channel collisions in Wireless Regional Area Networks (WRAN), A medium access controller (MAC) for switching a base station (BS) of a WRAN from a first channel to a second channel at a time t is provided. The MAC includes a switch time delay circuit for delaying said switching with respect to time t by a random delay time.
摘要翻译：本发明提供了一种用于避免无线区域网络（WRAN）中的信道冲突的装置方法，提供了一种用于在时间t将WRAN的基站（BS）从第一信道切换到第二信道的媒体接入控制器（MAC）。 MAC包括用于将所述相对于时间t的切换延迟随机延迟时间的开关时间延迟电路。

8. 发明授权

US08537938B2 Method and apparatus for demultiplexer design for multi-edge type LDPC coded modulation 有权
标题翻译：用于多边缘型LDPC编码调制的解复用器设计的方法和装置
公开(公告)号：US08537938B2
公开(公告)日：2013-09-17
申请号：US13138089
申请日：2010-01-14
申请人： Jing Lei , Wen Gao
发明人： Jing Lei , Wen Gao
IPC分类号： H03M13/00
CPC分类号： H04L1/0057 , H03M13/033 , H03M13/1165 , H03M13/253 , H03M13/255 , H03M13/6552 , H03M13/6555 , H04L1/0041 , H04L1/0071
摘要： A method involves receiving an LDPC coded bitstream and demultiplexing the received LDPC coded bitstream using an optimized demultiplexer, the optimized demultiplexer being designed by: substituting Q levels of a constellation mapper by Q parallel binary erasure channels; optimizing a density evolution of erasure probability over said binary erasure channels for a plurality of demultiplexer offsets; and identifying from the plurality of demultiplexer offsets those with a minimum number of check node decoder collisions.
摘要翻译：一种方法包括接收LDPC编码比特流并使用优化解复用器解复用接收的LDPC编码比特流，优化的解复用器通过以下方式设计：通过Q个并行二进制擦除信道来代替星座映射器的Q个等级; 优化用于多个解复用器偏移的所述二进制擦除信道上的擦除概率的密度演化; 并且从多个解复用器的识别偏移具有最小数量的校验节点解码器冲突的那些。

9. 发明授权

US08537730B2 Method and apparatus for sensing channel availability in wireless networks 有权
标题翻译：用于感测无线网络中信道可用性的方法和装置
公开(公告)号：US08537730B2
公开(公告)日：2013-09-17
申请号：US12224537
申请日：2006-03-01
申请人： Hang Liu , Wen Gao
发明人： Hang Liu , Wen Gao
IPC分类号： H04B7/00
CPC分类号： H04B10/0771 , H04B2210/077
摘要： A method and apparatus for sensing channel availability in a wireless network are described including switching to a first candidate channel for operational data transmission and reception sensing a previous operating channel for availability, determining if the previous operating channel is available, switching back to the previous operating channel if the previous operating channel is available and one of continuing to use the candidate channel for operational data transmission and reception and immediately switching to a second candidate channel for operational data transmission and reception and switching to the second candidate channel for operational data transmission and reception after a pre-determined period of time. Also described is a system for sensing channel availability in a cognitive network including an RF unit, for switching channels, a sensing unit for sensing channel availability and a media access control unit for controlling the sensing unit and the RF unit.
摘要翻译：描述了一种用于感测无线网络中的信道可用性的方法和装置，包括切换到用于操作数据传输和接收的第一候选信道，感测先前的操作信道的可用性，确定先前的操作信道是否可用，切换回先前的操作如果先前的操作信道可用并且继续使用用于操作数据发送和接收的候选信道，并立即切换到用于操作数据发送和接收的第二候选信道，并切换到用于操作数据发送和接收的第二候选信道经过预定的时间段。还描述了一种用于感知认知网络中的信道可用性的系统，包括用于切换信道的RF单元，用于感测信道可用性的感测单元和用于控制感测单元和RF单元的媒体访问控制单元。

10. 发明授权

US08400970B2 System and method for securing a personalized indicium assigned to a mobile communications device 失效
标题翻译：用于保护分配给移动通信设备的个性化标记的系统和方法
公开(公告)号：US08400970B2
公开(公告)日：2013-03-19
申请号：US13091206
申请日：2011-04-21
申请人： David Bajar , Herb A. Little , James Godfrey , Allan David Lewis , Wen Gao , Marc Plumb , Michael Kenneth Brown , Graeme Whittington , Neil Patrick Adams
发明人： David Bajar , Herb A. Little , James Godfrey , Allan David Lewis , Wen Gao , Marc Plumb , Michael Kenneth Brown , Graeme Whittington , Neil Patrick Adams
IPC分类号： H04W12/06 , H04W4/00
CPC分类号： H04W12/06 , H04L63/0853 , H04W12/12
摘要： In one embodiment, a method operable on a mobile communications device is disclosed, the method comprising generating an authentication key for securing a personalized indicium assigned to the mobile communications device, wherein the personalized indicium comprises a Personal Information Number (PIN) that is mapped to at least one identifier associated with the mobile communications device; transmitting a registration request to a network node operable with a wireless network, the registration request having a registration request payload including the authentication key; receiving a challenge message from the network node, the challenge message generated when the network node detects a change of the IP address associated with the mobile communications device, and responsive to receiving the challenge message, executing a challenge response including an authentication value of a challenge string transmitted in the challenge message, wherein the authentication value is created using the authentication key.
摘要翻译：在一个实施例中，公开了一种在移动通信设备上可操作的方法，所述方法包括生成用于保护分配给所述移动通信设备的个性化标记的认证密钥，其中所述个性化标记包括被映射到与所述移动通信设备相关联的至少一个标识符; 向与无线网络可操作的网络节点发送注册请求，所述注册请求具有包括认证密钥的注册请求有效载荷; 从所述网络节点接收挑战消息，当所述网络节点检测到与所述移动通信设备相关联的IP地址的改变时产生的所述挑战消息，并且响应于接收到所述挑战消息，执行包括挑战的认证值的质询响应在询问消息中发送的字符串，其中使用认证密钥创建认证值。

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