公开(公告)号：US20080279168A1

公开(公告)日：2008-11-13

申请号：US11746501

申请日：2007-05-09

申请人： Amit KALHAN ,  Henry Chang ,  Timothy Thome ,  Doug Dunn

发明人： Amit KALHAN ,  Henry Chang ,  Timothy Thome ,  Doug Dunn

IPC分类号： H04B7/216

CPC分类号： H04W48/12

摘要： To improve WWAN coverage, an access node broadcasts overhead messages on a first channel covering a first channel environment and a second channel covering a second channel environment within a coverage region. The overhead messages carry network overhead parameters for allowing wireless mobile devices to acquire and maintain traffic channels within the cellular system. The overhead message channels are configured so that a user perceives uninterrupted wireless services while moving through different channel environments in the coverage region. In one embodiment, the overhead message channels are separate physical channels configured with different broadcast parameters to provide coverage in different environments. In another embodiment, the overhead parameter information is segregated into base and extended components that are encoded and layer modulated onto separate logical channels. Using layered modulation, wireless mobile devices can receive base components in poor coverage regions. The base components include overhead parameters for acquiring a WWAN channel.

摘要翻译： 为了改善WWAN覆盖，接入节点在覆盖第一信道环境的第一信道和覆盖覆盖区域内的第二信道环境的第二信道上广播开销消息。 开销消息携带网络开销参数，以允许无线移动设备获取和维护蜂窝系统内的业务信道。 开销消息信道被配置为使得用户在移动通过覆盖区域中的不同信道环境时感知不间断的无线服务。 在一个实施例中，开销消息信道是配置有不同广播参数的分离物理信道，以在不同环境中提供覆盖。 在另一个实施例中，开销参数信息被分离成基本和扩展组件，其被编码和层调制到单独的逻辑信道上。 使用分层调制，无线移动设备可以在较差的覆盖区域中接收基本组件。 基本组件包括用于获取WWAN通道的开销参数。

公开(公告)号：US07221318B2

公开(公告)日：2007-05-22

申请号：US11225931

申请日：2005-09-13

申请人： Henry Chang ,  Doug Dunn

发明人： Henry Chang ,  Doug Dunn

IPC分类号： H01Q3/00

CPC分类号： H04B7/0617 ,  H01Q3/2605 ,  H04W16/28

摘要： A communication system and method for controlling an antenna pattern is disclosed. The communication system may be situated on a mobile station, a base station, or a combination thereof. The communication system comprises a smart antenna module, a speed sensor, and a beam steering module. The smart antenna module may be situated on the mobile station, the base station, or a combination thereof. The smart antenna module generates at least one initial antenna pattern. The speed sensor is configured to determine a speed of a mobile station. The beam steering module generates an operating antenna pattern that is different from the initial antenna pattern. The operating antenna pattern is affected by changes in the speed of the mobile station.

公开(公告)号：US08238921B2

公开(公告)日：2012-08-07

申请号：US12267413

申请日：2008-11-07

申请人： Henry Chang ,  Doug Dunn

发明人： Henry Chang ,  Doug Dunn

IPC分类号： H04W36/00

CPC分类号： H04W48/08 ,  H04W64/00 ,  H04W84/045

摘要： A detecting base station transmits user zone information to wireless communication device when the presence of a wireless communication device is detected. A detecting base station receives a detection signal, such as an uplink signal, transmitted from the wireless communication device to determine the presence of the wireless communication device. The detecting base station notifies the core network the detection by transmitting a device proximity message and, after receiving authorization from the network, transmits the user zone information within the broadcast channel used by the originating base station communicating to the wireless communication device.

摘要翻译： 当检测到无线通信设备的存在时，检测基站向无线通信设备发送用户区域信息。 检测基站从无线通信设备接收诸如上行链路信号的检测信号，以确定无线通信设备的存在。 检测基站通过发送设备邻近消息来通知核心网络，并且在从网络接收到授权之后，将发送基站使用的广播信道中的用户区域信息发送到无线通信设备。

公开(公告)号：US08165606B2

公开(公告)日：2012-04-24

申请号：US11317406

申请日：2005-12-22

申请人： Doug Dunn ,  Amit Kalhan ,  Henry Chang

发明人： Doug Dunn ,  Amit Kalhan ,  Henry Chang

IPC分类号： H04W24/00

CPC分类号： H04W4/02 ,  H04L67/18 ,  H04W4/90 ,  H04W36/14 ,  H04W64/00 ,  H04W76/50 ,  H04W84/12 ,  H04W88/06

摘要： An apparatus, system, and method for managing geographical location information of a portable communication device by determining and storing the geographic location information while registered on a cellular communication system in response to detecting an available wireless local area network (WLAN) system. When the portable communication device is communicating on the cellular communication system and a WLAN access point is detected, a location determination procedure is performed and the resulting geographical location information is stored at the portable communication device. When the portable communication device is communicating with a wireless access point of a WLAN system, and a second access point is detected, the portable communication device registers to the cellular communication network, if not already registered, and performs the geographical location determination procedure. Geographical location information is transmitted to a public safety answering point (PSAP) or network entity when an emergency call is executed.

摘要翻译： 响应于检测到可用的无线局域网（WLAN）系统，通过在蜂窝通信系统上注册而确定并存储地理位置信息来管理便携式通信设备的地理位置信息的装置，系统和方法。 当便携式通信设备在蜂窝通信系统上进行通信并且检测到WLAN接入点时，执行位置确定过程，并将得到的地理位置信息存储在便携式通信设备中。 当便携式通信设备正在与WLAN系统的无线接入点通信，并且检测到第二接入点时，便携式通信设备如果尚未注册，则向蜂窝通信网络注册，并且执行地理位置确定过程。 当执行紧急呼叫时，地理位置信息被传送到公共安全应答点（PSAP）或网络实体。

公开(公告)号：US20100240314A1

公开(公告)日：2010-09-23

申请号：US12407707

申请日：2009-03-19

申请人： Henry CHANG ,  Doug Dunn

发明人： Henry CHANG ,  Doug Dunn

IPC分类号： H04B17/00

CPC分类号： H04W52/325 ,  H04W8/005 ,  H04W52/38

摘要： A base station is configured to reduce interference with other base stations and/or devices in a multi-cell wireless network. The base station includes a wireless interface, detector and controller. To reduce interference, the wireless interface may provide services to a first wireless communication device (WCD) using a pilot signal emitted from the base station at a reduced power level. In the reduced pilot signal mode, when the detector detects a second WCD within the base station's service area, the controller increases the pilot signal's power level above the reduced power level in order to establish communications with the second WCD. Upon successfully connecting to the first and second WCDs, the base station may again reduce the pilot signal's power level to reduce interference with other base stations or wireless devices.

摘要翻译： 基站被配置为减少对多小区无线网络中的其他基站和/或设备的干扰。 基站包括无线接口，检测器和控制器。 为了减少干扰，无线接口可以使用从基站以降低的功率电平发射的导频信号向第一无线通信设备（WCD）提供服务。 在减小导频信号模式中，当检测器检测到基站服务区内的第二WCD时，控制器将导频信号的功率电平增加到降低的功率电平之上，以建立与第二WCD的通信。 在成功连接到第一和第二WCD之后，基站可以再次降低导频信号的功率电平，以减少对其他基站或无线设备的干扰。

公开(公告)号：US07508791B2

公开(公告)日：2009-03-24

申请号：US11263893

申请日：2005-10-31

申请人： Amit Kalhan ,  Doug Dunn ,  Henry Chang ,  Ramon Khalona

发明人： Amit Kalhan ,  Doug Dunn ,  Henry Chang ,  Ramon Khalona

IPC分类号： H04L12/56

CPC分类号： H04L1/0041 ,  H04L1/0001 ,  H04L1/08 ,  H04L1/1819

摘要： In a wireless communication system, data is encoded by packet indifferent (PI) coding and some packets are transmitted omnidirectionally while supplemental packets are transmitted directionally to a user with a poor air link. PI encoding is defined herein as encoding in which the source data can be recovered from any K of the encoded packets, regardless of which of the encoded packets are received, where K=N+A. N is equal to the number of packets in the source data and A is the number of additional packets required due to the PI encoding. A subset of M data packets can be sent to one or many users from an omnidirectional antenna, where M is greater than or equal to K. If less than K data packets are received by at least one user, then the data block is not successfully received by that user. A number R of supplemental packets can be sent to users that did not receive K data packets successfully. The supplemental packets can be sent by a directional antenna to the specific user or users that did not receive K data packets.

摘要翻译： 在无线通信系统中，通过分组无关（PI）编码对数据进行编码，并且一些分组被全向传输，而补充分组被定向地传送给具有差的空中链路的用户。 PI编码在这里被定义为可以从任何K个编码分组恢复源数据的编码，而不管接收到哪个编码分组，其中K = N + A。 N等于源数据中的数据包数，A是由于PI编码而需要的附加数据包的数量。 M数据分组的子集可以从全向天线发送给一个或多个用户，其中M大于或等于K.如果少于K个数据分组被至少一个用户接收，则数据块不成功 由该用户接收。 补充数据包R可以发送给没有成功接收K个数据包的用户。 可以通过定向天线将补充分组发送给不接收K个数据分组的特定用户或用户。

公开(公告)号：US07499691B1

公开(公告)日：2009-03-03

申请号：US11289061

申请日：2005-11-29

申请人： Doug Dunn ,  Henry Chang

发明人： Doug Dunn ,  Henry Chang

IPC分类号： H04B1/06 ,  H04Q7/20

CPC分类号： H04B7/0814

摘要： An improved smart antenna reception method and devices are provided that determine when to select a new antenna configuration in a multiple antenna configuration system. One embodiment attempts to eliminate unneeded configuration searching. Unneeded configuration searching can degrade overall signal quality and system performance. Configuration changing can be minimized by determining that a signal quality received from a first antenna configuration is below a threshold and changing antenna configuration. After changing antenna configuration, if the signal quality received from the second antenna configuration is lower than the signal quality received from the first antenna configuration the threshold can be lowered. By lowering the threshold, the probability of additional configuration changing can be reduced.

摘要翻译： 提供了一种改进的智能天线接收方法和设备，其确定何时在多天线配置系统中选择新的天线配置。 一个实施例尝试消除不必要的配置搜索。 不需要的配置搜索可能会降低整体信号质量和系统性能。 通过确定从第一天线配置接收到的信号质量低于阈值并改变天线配置，可以最小化配置改变。 在改变天线配置之后，如果从第二天线配置接收到的信号质量低于从第一天线配置接收的信号质量，则阈值可以降低。 通过降低阈值，可以减少附加配置改变的概率。

公开(公告)号：US20080280630A1

公开(公告)日：2008-11-13

申请号：US11746532

申请日：2007-05-09

申请人： Amit KALHAN ,  Henry Chang ,  Timothy Thome ,  Doug Dunn

发明人： Amit KALHAN ,  Henry Chang ,  Timothy Thome ,  Doug Dunn

IPC分类号： H04Q7/38

CPC分类号： H04W68/02 ,  H04L1/0004 ,  H04L1/0071 ,  H04L1/1607 ,  H04L1/1867

摘要： A system and method for paging wireless mobile devices selectively varies the effective modulation order of a paging channel to achieve improved coverage in a wireless wide area network (WWAN) cell. In one embodiment, the paging channel modulation order is selected based on a measured signal strength and/or common channel error rate. The selected modulation order is directly related to the quality of the channel environment. In another embodiment, a page message is segregated into base and extended components that are layer modulated. With layered modulation, wireless mobile devices in good coverage regions can successfully demodulate both the base and extended components to recover the entire page message. Wireless mobile devices in poor coverage regions can successfully demodulate the base component of the page message, and then request that the extended component of the page message be re-broadcast as a base component to thereby recover the entire page message.

摘要翻译： 用于寻呼无线移动设备的系统和方法选择性地改变寻呼信道的有效调制阶数以在无线广域网（WWAN）小区中实现改进的覆盖。 在一个实施例中，基于测量的信号强度和/或公共信道错误率来选择寻呼信道调制阶数。 选择的调制顺序与通道环境的质量直接相关。 在另一个实施例中，页面消息被分离成被层调制的基本和扩展组件。 通过分层调制，良好覆盖区域中的无线移动设备可以成功地解调基本和扩展组件，以恢复整个页面消息。 不良覆盖区域中的无线移动设备可以成功地解调页面消息的基本组件，然后请求将页面消息的扩展组件重新广播为基础组件，从而恢复整个页面消息。

公开(公告)号：US07231227B2

公开(公告)日：2007-06-12

申请号：US10929847

申请日：2004-08-30

申请人： Amit Kalhan ,  Ramon Khalona ,  Henry Chang ,  Doug Dunn ,  Richard J. Camarillo

发明人： Amit Kalhan ,  Ramon Khalona ,  Henry Chang ,  Doug Dunn ,  Richard J. Camarillo

IPC分类号： H04B1/38 ,  H04M1/00

CPC分类号： H04L25/03006

摘要： A multi-mode receiver and methods are provided, which use blind source separation (BSS) analysis to distinguish the various wireless communication signals from each other. Specifically, different signal types can be identified by BSS. The different signal types can be in overlapping frequencies or they can be in completely different frequencies. The BSS analysis may use center or carrier frequency, bandwidth, modulation scheme, access scheme, or wireless communication resources as an input to assist in the BSS.

摘要翻译： 提供了一种多模式接收机和方法，其使用盲源分离（BSS）分析来区分各种无线通信信号。 具体来说，BSS可以识别不同的信号类型。 不同的信号类型可以是重叠频率，也可以是完全不同的频率。 BSS分析可以使用中心或载波频率，带宽，调制方案，接入方案或无线通信资源作为输入来协助BSS。

公开(公告)号：US20070093282A1

公开(公告)日：2007-04-26

申请号：US11257725

申请日：2005-10-25

申请人： Henry Chang ,  Doug Dunn ,  Gregory Poilasne

发明人： Henry Chang ,  Doug Dunn ,  Gregory Poilasne

IPC分类号： H04M1/00

CPC分类号： H04B7/0608

摘要： An apparatus, system, and method manage a transmission antenna system by measuring an antenna performance indicator of an alternate antenna configuration during a reduced data rate transmission. After an antenna performance indicator is measured in a current (first) antenna system configuration, the antenna system is configured to an alternate (second) configuration during a reduced data rate transmission and the antenna performance indicator of the alternate (second) configuration is measured. The antenna performance indicators for both configurations are evaluated to determine the optimum antenna system configuration for transmission. If the alternate (second) configuration will result in decreased performance, the antenna system is changed back to the first antenna system configuration. Otherwise, the alternate (second) configuration is defined as the current configuration and the first antenna configuration is evaluated during reduced rate transmissions.

摘要翻译： 一种装置，系统和方法通过在减小的数据速率传输期间测量替代天线配置的天线性能指标来管理发射天线系统。 在当前（第一）天线系统配置中测量天线性能指示符之后，在降低的数据速率传输期间天线系统被配置为交替（第二）配置，并且测量交替（第二）配置的天线性能指示符。 评估两种配置的天线性能指标，以确定用于传输的最佳天线系统配置。 如果交替（第二）配置将导致性能下降，则天线系统将改回第一天线系统配置。 否则，替代（第二）配置被定义为当前配置，并且在降低速率传输期间评估第一天线配置。