公开(公告)号：US20090059841A1

公开(公告)日：2009-03-05

申请号：US11652245

申请日：2007-01-10

申请人： Rajiv Laroia ,  Frank A. Lane ,  Junyi Li ,  Tom Richardson

发明人： Rajiv Laroia ,  Frank A. Lane ,  Junyi Li ,  Tom Richardson

IPC分类号： H04W88/08

CPC分类号： H04W40/244 ,  H04J3/0602 ,  H04L5/0016 ,  H04L5/0035 ,  H04L5/0048 ,  H04L27/2601 ,  H04L27/261 ,  H04W8/005 ,  H04W16/14 ,  H04W28/04 ,  H04W28/18 ,  H04W36/16 ,  H04W36/24 ,  H04W40/24 ,  H04W48/08 ,  H04W48/16 ,  H04W48/20 ,  H04W52/0229 ,  H04W52/04 ,  H04W72/02 ,  H04W76/14 ,  H04W84/042 ,  H04W84/18 ,  H04W88/02 ,  H04W88/04 ,  H04W88/06 ,  H04W88/10 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/22 ,  Y02D70/23

摘要： Methods and apparatus supporting peer to peer communications are discussed. A base station, serving as an access node for wireless terminals also communicates information supporting peer to peer communications. A base station transmits a beacon signal conveying information about a peer to peer frequency band and also receives user data from a plurality of wireless terminals, using the base station as a current point of network attachment. In some embodiments, the beacon signal is transmitted into the same frequency band being used for access node based communications and identifies a different frequency band which is to be used as a peer to peer frequency band. Alternatively, or in addition, in support of peer to peer communications, a beacon signal transmission apparatus, a free standing device which doesn't transmit user data, transmits a sequence of beacon signal bursts, each beacon signal burst including at least one high power beacon symbol.

摘要翻译： 讨论了支持对等通信的方法和设备。 作为无线终端的接入节点的基站还通信支持对等通信的信息。 基站发送传达关于对等频带的信息的信标信号，并且使用基站作为网络附着的当前点从多个无线终端接收用户数据。 在一些实施例中，信标信号被发送到用于基于接入节点的通信的相同频带中，并且识别要用作对等频带的不同频带。 或者或另外，为了支持对等通信，信标信号发送装置，不发送用户数据的独立装置发送信标信号突发序列，每个信标信号突发包括至少一个高功率 信标符号。

公开(公告)号：US20080287130A1

公开(公告)日：2008-11-20

申请号：US12123263

申请日：2008-05-19

申请人： Rajiv Laroia ,  Junyi Li ,  Frank A. Lane

发明人： Rajiv Laroia ,  Junyi Li ,  Frank A. Lane

IPC分类号： H04Q7/20 ,  H04M1/00

CPC分类号： H04W36/18 ,  H04W36/06

摘要： A mobile communications device initiates a handoff from its current base station (BS) sector network attachment point to a new BS sector. The mobile sends a handoff request over its current wireless link to the current BS sector, which forwards the request to the new BS sector, e.g., via a network link. The new BS sector processes the request assigning dedicated resources, e.g., an identifier and dedicated uplink segments. Information identifying the allocated resources is conveyed from the new BS sector via the current BS sector to the mobile. The mobile determines the time of the allocated dedicated segments based upon a received beacon signal from the new BS sector with known timing relationships to dedicated segments. The mobile breaks the original wireless link just prior to the time of the first assigned dedicated segment. The mobile communicates information on the assigned dedicated segments to perform registration operations, e.g., timing synchronization and power control, establishing a new wireless link.

摘要翻译： 移动通信设备发起从其当前基站（BS）扇区网络连接点到新的BS扇区的切换。 移动台通过其当前的无线链路向当前的BS扇区发送切换请求，该BS扇区将该请求转发到新的BS扇区，例如经由网络链路。 新BS部门处理分配专用资源的请求，例如标识符和专用上行链路段。 识别分配的资源的信息从新的BS扇区通过当前BS扇区传送到移动台。 移动台基于来自新BS扇区的接收到的信标信号确定所分配的专用段的时间，具有与专用段的已知定时关系。 移动台在第一个分配的专用段之前就打破原始的无线链路。 移动台在分配的专用段上传送信息以执行注册操作，例如定时同步和功率控制，建立新的无线链路。

公开(公告)号：US07403470B2

公开(公告)日：2008-07-22

申请号：US11184051

申请日：2005-07-18

申请人： Frank A. Lane ,  Rajiv Laroia ,  Junyi Li

发明人： Frank A. Lane ,  Rajiv Laroia ,  Junyi Li

IPC分类号： H04J11/00

CPC分类号： H04L5/023 ,  G06Q50/22 ,  H04B7/1853 ,  H04L1/16 ,  H04L27/261 ,  H04L27/2614

摘要： An OFDM wireless communications system includes terrestrial and satellite based base stations. Mobile nodes support two uplink modes of operation, multi-tone mode for terrestrial station interaction and single tone mode for satellite base station interaction. In single tone mode the peak to average power ratio is lower than in the multi-tone mode allowing the same power amplifier to transmit higher average power signals and thus extend range and reach a satellite in geostationary orbit. In multi-tone mode, the mobile node: is temporarily assigned a multi-tone uplink traffic channel segment for user data, is assigned a dedicated control channel for uplink control signals, and supports slaved Ack/Nak for traffic channels. In single tone mode, the mobile node: is assigned a single logical uplink dedicated tone to use for transmitting both user data and control data, and does not use a slaved Ack/Nak mechanism for traffic channels.

摘要翻译： OFDM无线通信系统包括基于地面和卫星的基站。 移动节点支持两种上行工作模式，用于地面站交互的多音模式和用于卫星基站交互的单音模式。 在单音模式下，峰值与平均功率比低于多音调模式，允许相同的功率放大器传输较高的平均功率信号，从而扩展距离并到达地球静止轨道的卫星。 在多音模式下，移动节点临时分配用于用户数据的多音调上行业务信道段，为上行控制信号分配专用控制信道，并支持业务信道的从属Ack / Nak。 在单音模式中，移动节点被分配用于传送用户数据和控制数据的单个逻辑上行专用音调，并且不对业务信道使用从属的Ack / Nak机制。

公开(公告)号：US07376425B2

公开(公告)日：2008-05-20

申请号：US11283676

申请日：2005-11-21

申请人： Rajiv Laroia ,  Junyi Li ,  Frank A. Lane

发明人： Rajiv Laroia ,  Junyi Li ,  Frank A. Lane

IPC分类号： H04Q7/20 ,  H04Q7/00

CPC分类号： H04W36/18 ,  H04W36/06

摘要： A mobile communications device initiates a handoff from its current base station (BS) sector network attachment point to a new BS sector. The mobile sends a handoff request over its current wireless link to the current BS sector, which forwards the request to the new BS sector, e.g., via a network link. The new BS sector processes the request assigning dedicated resources, e.g., an identifier and dedicated uplink segments information identifying the allocated resources is conveyed from the new BS sector via the current BS sector to the mobile. The mobile determines the time of the allocated dedicated segments based upon a received beacon signal from the new BS sector with known timing relationships to dedicated segments. The mobile breaks the original wireless link just prior to the time of the first assigned dedicated segment. The mobile communicates information on the assigned dedicated segments to perform registration operations, e.g., timing synchronization and power control, establishing a new wireless link.

摘要翻译： 移动通信设备发起从其当前基站（BS）扇区网络连接点到新的BS扇区的切换。 移动台通过其当前的无线链路向当前的BS扇区发送切换请求，该BS扇区将该请求转发到新的BS扇区，例如经由网络链路。 新BS部门处理分配专用资源的请求，例如标识符，并且识别所分配的资源的专用上行链路段信息从新BS扇区经由当前BS扇区传送到移动台。 移动台基于来自新BS扇区的接收到的信标信号确定所分配的专用段的时间，具有与专用段的已知定时关系。 移动台在第一个分配的专用段之前就打破原始的无线链路。 移动台在分配的专用段上传送信息以执行注册操作，例如定时同步和功率控制，建立新的无线链路。

公开(公告)号：US07039370B2

公开(公告)日：2006-05-02

申请号：US10964885

申请日：2004-10-14

申请人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan ,  Frank A. Lane ,  Prashanth Hande

发明人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan ,  Frank A. Lane ,  Prashanth Hande

IPC分类号： H04B7/02

CPC分类号： H04B7/0604 ,  H01Q3/24 ,  H01Q3/2605 ,  H04B7/061 ,  H04B7/0691 ,  H04B7/0805 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/006 ,  H04W52/42

摘要： Transmit and/or receive diversity is achieved using multiple antennas. In some embodiments, a single transmitter chain within a wireless terminal is coupled over time to a plurality of transmit antennas. At any given time, a controllable switching module couples the single transmitter chain to one the plurality of transmit antennas. Over time, the switching module couples the output signals from the single transmitter chain to different transmit antennas. Switching decisions are based upon predetermined information, dwell information, and/or channel condition feedback information. Switching is performed on some dwell and/or channel estimation boundaries. In some OFDM embodiments, each of multiple transmitter chains is coupled respectively to a different transmit antenna. Information to be transmitted is mapped to a plurality of tones. Different subsets of tones are formed for and transmitted through different transmit chain/antenna sets simultaneously. The balance of tones allocated to the subsets for each antenna are changed as a function of predetermined information, dwell information, and/or channel condition feedback information.

公开(公告)号：US5978420A

公开(公告)日：1999-11-02

申请号：US200084

申请日：1998-11-25

申请人： Joshua L. Koslov ,  Frank A. Lane ,  Carl G. Scarpa

发明人： Joshua L. Koslov ,  Frank A. Lane ,  Carl G. Scarpa

IPC分类号： H03H17/00 ,  H04L27/20

CPC分类号： H04L27/2071

摘要： In accordance with the present invention an interpolation technique is used to convert a low rate digital signal to a high rate signal and to shift the carrier to a desired frequency. This is accomplished, by first positioning the information signal, e.g., the digital waveform to be modulated on a carrier at a relatively low rate using a digital mixer operating at a fraction of the ultimate digital to analog conversion frequency. The relatively low rate signal generated by the mixing operation is then converted to a high rate signal by one or more interpolator stages. An adjustable passband filter circuit is included in each interpolation stage. One feature of the present invention is directed to a control circuit which is response to an H bit frequency control word representing a desired output carrier frequency. The control circuit generates individual filter control signals for each adjustable filter circuit from the single H bit frequency control word. An oscillator control circuit which is responsive to a portion of the H bit frequency control word is also described.

摘要翻译： 根据本发明，内插技术用于将低速率数字信号转换成高速率信号并将载波移位到期望的频率。 这是通过使用以最终数模转换频率的一小部分操作的数字混频器首先定位信息信号，例如以较低速率调制在载波上的数字波形。 然后由混合操作产生的相对较低的速率信号通过一个或多个内插器级转换成高速率信号。 每个插补级包含可调整通带滤波电路。 本发明的一个特征是针对表示期望输出载波频率的H位频率控制字的响应的控制电路。 控制电路从单个H位频率控制字为每个可调滤波器电路生成各个滤波器控制信号。 还描述了响应于H位频率控制字的一部分的振荡器控制电路。

公开(公告)号：US5568200A

公开(公告)日：1996-10-22

申请号：US477787

申请日：1995-06-07

申请人： Larry A. Pearlstein ,  Joseph E. Augenbraun ,  Frank A. Lane

发明人： Larry A. Pearlstein ,  Joseph E. Augenbraun ,  Frank A. Lane

IPC分类号： G06T9/00 ,  H04N5/44 ,  H04N7/26 ,  H04N7/50 ,  H04N7/52 ,  H04N7/64

CPC分类号： H04N7/52 ,  H04N19/174 ,  H04N19/61 ,  H04N5/4401 ,  H04N19/107

摘要： A method and apparatus for controlling the display of progressively refreshed decoded compressed image representative data is disclosed. Subframes of intracoded video signals, and subframes of intercoded video signals based on the intracoded video signals of successive video frames are used to construct a reference video frame. Refresh descriptor data is provided indicating the number of video frames necessary for acquiring intracoded video signals to form the reference video frame. The display of video frames is inhibited based on the refresh descriptor data until a suitable video frame of intracoded video signals and intercoded video signals based thereon is constructed. In another embodiment of the invention, at least one array of memory elements is provided for storing data corresponding to the subframes of a video frame. Each subframe of a video frame corresponds to one element of the memory array. Data indications are stored to mark as "clean" or initialized the regions of subframes having intracoded video signals and subframes having intercoded video signals based on the intracoded video signals. Substitute video signals are provided to conceal portions of respective video frames not marked as initialized, thereby provide a more pleasing picture to the viewer.

摘要翻译： 公开了一种用于控制逐渐刷新的解码压缩图像代表数据的显示的方法和装置。 使用内部编码的视频信号的子帧，以及基于连续视频帧的内部编码的视频信号的帧间视频信号的子帧来构造参考视频帧。 提供刷新描述符数据，指示获取内部编码视频信号以形成参考视频帧所需的视频帧的数量。 基于刷新描述符数据禁止视频帧的显示，直到构成了基于内部编码的视频信号和基于帧间视频信号的适当的视频帧。 在本发明的另一个实施例中，提供至少一个存储元件阵列用于存储对应于视频帧的子帧的数据。 视频帧的每个子帧对应于存储器阵列的一个元素。 数据指示被存储以标记为“干净”或基于内部编码的视频信号来初始化具有内部编码视频信号的子帧的区域和具有相互间的视频信号的子帧。 提供替代视频信号以隐藏未被标记为初始化的各个视频帧的部分，从而向观看者提供更令人愉悦的画面。