公开(公告)号：US20050101319A1

公开(公告)日：2005-05-12

申请号：US10968613

申请日：2004-10-18

申请人： Ramaswamy Murali ,  Gordon Walker ,  Rajiv Vijayan

发明人： Ramaswamy Murali ,  Gordon Walker ,  Rajiv Vijayan

IPC分类号： H04H20/71 ,  G06F20060101 ,  G06Q50/30 ,  H04B7/00 ,  H04N7/08

CPC分类号： H04N5/4401 ,  H04N5/50 ,  H04N21/41407 ,  H04N21/4345 ,  H04N21/4384 ,  H04N21/44222

摘要： Techniques to seamlessly switch reception between multimedia programs are described. For “continued decoding”, a wireless device continues to receive, decode, decompress, and (optionally) display a current program, even after a new program has been selected, until overhead information needed to decode the new program is received. After receiving the overhead information, the wireless device decodes the new program but continues to decompress the current program. The wireless device decompresses the new program after decoding this program. For “early decoding”, the wireless device receives a user input and identifies a program with potential for user selection. The identified program may be the one highlighted by the user input or a program anticipated to be selected based on the user input. The wireless device initiates decoding of the identified program, prior to its selection, so that the program can be decompressed and displayed earlier if it is subsequently selected.

摘要翻译： 描述了在多媒体节目之间无缝切换接收的技术。 对于“继续解码”，即使在选择了新的程序之后，无线设备继续接收，解码，解压缩和（可选地）显示当前程序，直到接收到解码新程序所需的开销信息。 在接收到开销信息之后，无线设备解码新程序，但是继续解压缩当前程序。 解码该程序后，无线设备解压缩新程序。 对于“早期解码”，无线设备接收用户输入并识别具有用户选择潜力的节目。 识别的程序可以是由用户输入或预期将基于用户输入选择的程序突出显示的程序。 无线设备在其选择之前启动所识别的节目的解码，使得如果随后选择该节目，则可以更早地解压缩并显示节目。

公开(公告)号：US06680925B2

公开(公告)日：2004-01-20

申请号：US09982239

申请日：2001-10-16

申请人： Qiang Wu ,  Nagabhushana Sindhushayana ,  Peter J. Black ,  Rajiv Vijayan ,  Rashid Attar

发明人： Qiang Wu ,  Nagabhushana Sindhushayana ,  Peter J. Black ,  Rajiv Vijayan ,  Rashid Attar

IPC分类号： H04Q700

CPC分类号： H04W36/06 ,  H04B7/0491 ,  H04W16/24

摘要： In a disclosed embodiment, signal levels of the active sectors of an access terminal are compared with the signal level of the current serving sector of the access terminal. Next, a delta credit is accumulated. If a DRC lock bit is available, then an accumulated total credit is authorized to produce an authorized accumulated total credit. Afterwards, a new serving sector is identified from a pool of candidate sectors based on the signal levels of the active sectors and the authorized accumulated total credits.

摘要翻译： 在公开的实施例中，将接入终端的活动扇区的信号电平与接入终端的当前服务扇区的信号电平进行比较。 接下来，积累了三角洲信贷。 如果DRC锁定位可用，则累积的总信用额被授权生成授权的累积总额。 之后，基于活动扇区的信号电平和授权的累计总信用，从候选扇区池中识别新的服务扇区。

公开(公告)号：US08738614B2

公开(公告)日：2014-05-27

申请号：US11112238

申请日：2005-04-21

申请人： Gordon Kent Walker ,  George Alan Wiley ,  Ricardo Jorge Lopez ,  Richard Doil Lane ,  Rajiv Vijayan

发明人： Gordon Kent Walker ,  George Alan Wiley ,  Ricardo Jorge Lopez ,  Richard Doil Lane ,  Rajiv Vijayan

IPC分类号： G06F7/00 ,  G06F17/30

CPC分类号： H04L29/06027 ,  H04L65/4076 ,  H04L65/4084 ,  H04L65/4092 ,  H04L65/602 ,  H04L65/607 ,  H04N21/23614 ,  H04N21/41407 ,  H04N21/4331 ,  H04N21/4348 ,  H04N21/44016 ,  H04N21/4622 ,  H04N21/6581 ,  H04N21/8455

摘要： System for providing hierarchical services in a data network. A method is provided for inserting content into a content stream for rendering on a device. The method includes obtaining one or more annotation parameters that comprise a content identifier, and determining an insertion point indicator that indicates a location in the content stream. The method also includes retrieving the content based on the content identifier, and inserting the content in the content stream at a location indicated by the insertion point indicator.

摘要翻译： 用于在数据网络中提供分级服务的系统。 提供了一种用于将内容插入到用于在设备上呈现的内容流的方法。 该方法包括获得包含内容标识符的一个或多个注释参数，以及确定指示内容流中的位置的插入点指示符。 该方法还包括基于内容标识符检索内容，并将内容流插入到由插入点指示符指示的位置。

公开(公告)号：US08422434B2

公开(公告)日：2013-04-16

申请号：US10368733

申请日：2003-02-18

申请人： Rajiv Vijayan ,  Avneesh Agrawal ,  Sanjay Jha

发明人： Rajiv Vijayan ,  Avneesh Agrawal ,  Sanjay Jha

IPC分类号： H04W4/00

CPC分类号： H04W72/0453 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0066 ,  H04L27/2614 ,  H04W52/343 ,  H04W52/367

摘要： Techniques for managing peak-to-average power ratio (PAPR) for multi-carrier modulation in wireless communication systems. Different terminals in a multiple-access system may have different required transmit powers. The number of carriers to allocate to each terminal is made dependent on its required transmit power. Terminals with higher required transmit powers may be allocated fewer carriers (associated with smaller PAPR) to allow the power amplifier to operate at higher power levels. Terminals with lower required transmit powers may be allocated more carriers (associated with higher PAPR) since the power amplifier is operated at lower power levels. The specific carriers to assign to the terminals may also be determined by their transmit power levels to reduce out-of-band emissions. Terminals with higher required transmit powers may be assigned with carriers near the middle of the operating band, and terminals with lower required transmit powers may be assigned with carriers near the band edges.

摘要翻译： 用于管理无线通信系统中多载波调制的峰均功率比（PAPR）的技术。 多址系统中的不同终端可能具有不同的所需传输功率。 分配给每个终端的载波数量取决于其所需的发射功率。 具有更高所需发射功率的终端可以被分配较少的载波（与较小的PAPR相关联），以允许功率放大器在较高的功率电平下工作。 由于功率放大器在较低的功率电平下工作，所以具有较低所需发射功率的终端可以分配更多的载波（与更高的PAPR相关联）。 分配给终端的特定载波也可以由其发射功率电平来确定，以减少带外发射。 具有更高要求的发射功率的终端可以被分配到靠近工作频带中间的载波，并且具有较低所需发射功率的终端可以被分配给带边缘附近的载波。

公开(公告)号：US08194796B2

公开(公告)日：2012-06-05

申请号：US12607879

申请日：2009-10-28

申请人： Bruce Collins ,  Rajeev Krishnamurthi ,  Murali Ramaswamy Chair ,  Shusheel Gautam ,  Rajiv Vijayan ,  Seong Taek Chung

发明人： Bruce Collins ,  Rajeev Krishnamurthi ,  Murali Ramaswamy Chair ,  Shusheel Gautam ,  Rajiv Vijayan ,  Seong Taek Chung

IPC分类号： H04L27/06

CPC分类号： H04L1/0065 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0058 ,  H04L5/023 ,  H04L27/3488 ,  H04L2001/0098

摘要： A media access control (MAC) layer controller can manage base layer data and enhancement layer data in a layered modulation system. The MAC layer controller can process both base layer data and enhancement layer data and map the encoded symbols to a layered modulation constellation when both are present. If data for one of the layers terminates, then the MAC layer controller can generate and supply predetermined stuffing data to the layer lacking additional data. The MAC layer controller can send a control signal to the physical layer hardware to cause the hardware to map the layered signals having the stuffing data to a modified signal constellation. The MAC controller can also generate an overhead message that indicates the occurrence of the stuffing data. The receiver can receive the overhead message and can use the information to configure the receiver for the layered modulation constellation or the modified signal constellation.

摘要翻译： 媒体访问控制（MAC）层控制器可以在分层调制系统中管理基层数据和增强层数据。 当两者都存在时，MAC层控制器可以处理基本层数据和增强层数据两者并将编码符号映射到分层调制星座。 如果其中一层的数据终止，则MAC层控制器可以生成并向缺少附加数据的层提供预定的填充数据。 MAC层控制器可以向物理层硬件发送控制信号，使得硬件将具有填充数据的分层信号映射到修改的信号星座。 MAC控制器还可以生成指示填充数据的发生的开销消息。 接收机可以接收开销消息，并且可以使用该信息来配置用于分层调制星座或修改的信号星座的接收机。

公开(公告)号：US08094623B2

公开(公告)日：2012-01-10

申请号：US11686772

申请日：2007-03-15

申请人： Rashid Ahmed Akbar Attar ,  Rajiv Vijayan ,  Roberto Padovani ,  Naga Bhushan ,  Qiang Wu ,  Peter John Black ,  Eduardo A. S. Esteves

发明人： Rashid Ahmed Akbar Attar ,  Rajiv Vijayan ,  Roberto Padovani ,  Naga Bhushan ,  Qiang Wu ,  Peter John Black ,  Eduardo A. S. Esteves

IPC分类号： H04W36/08

CPC分类号： H04W48/20 ,  H04L1/20 ,  H04W52/24 ,  H04W52/26

摘要： Methods and apparatus for selecting a serving sector in a high rate data (HDR) communication system are disclosed. An exemplary HDR communication system defines a set of data rates, at which a sector of an Access Point may send data packets to an Access Terminal. The sector is selected by the Access Terminal to achieve the highest data throughput while maintaining a targeted packet error rate. The Access Terminal employs various methods to evaluate quality metrics of forward and reverse links from and to different sectors, and uses the quality metrics to select the sector to send data packets to the Access Terminal.

摘要翻译： 公开了在高速率数据（HDR）通信系统中选择服务扇区的方法和装置。 示例性HDR通信系统定义了一组数据速率，在该组数据速率下，接入点的扇区可以向接入终端发送数据分组。 访问终端选择该扇区以实现最高的数据吞吐量，同时保持目标分组错误率。 接入终端采用各种方法来评估来自不同扇区的前向和反向链路的质量度量，并使用质量度量来选择扇区将数据分组发送到接入终端。

公开(公告)号：US20110302605A1

公开(公告)日：2011-12-08

申请号：US13210230

申请日：2011-08-15

申请人： Murali Ramaswamy ,  Gordon Kent Walker ,  Rajiv Vijayan

发明人： Murali Ramaswamy ,  Gordon Kent Walker ,  Rajiv Vijayan

IPC分类号： H04N5/445 ,  H04N7/26

CPC分类号： H04N5/4401 ,  H04N5/50 ,  H04N21/41407 ,  H04N21/4345 ,  H04N21/4384 ,  H04N21/44222

摘要： Techniques to seamlessly switch reception between multimedia programs are described. For “continued decoding”, a wireless device continues to receive, decode, decompress, and (optionally) display a current program until overhead information needed to decode the new program is received. For “early decoding”, the wireless device receives a user input and identifies a program with potential for user selection. The wireless device initiates decoding of the identified program, prior to its selection, so that the program can be decompressed and displayed earlier if it is subsequently selected. For time-compensated transmission, a base station transmits video and audio for a program in a manner to account for the difference between audio processing delay and video processing delay at the wireless device. This allows the wireless device to present the audio earlier during a program change, since its processing delay is shorter, and thus provide a faster response to the program change.

摘要翻译： 描述了在多媒体节目之间无缝切换接收的技术。 对于“继续解码”，无线设备继续接收，解码，解压缩和（可选地）显示当前程序，直到接收到解码新程序所需的开销信息。 对于“早期解码”，无线设备接收用户输入并识别具有用户选择潜力的节目。 无线设备在其选择之前启动所识别的节目的解码，使得如果随后选择该节目，则可以更早地解压缩并显示节目。 对于时间补偿传输，基站以对于无线设备处的音频处理延迟和视频处理延迟之间的差异的方式发送用于节目的视频和音频。 这允许无线设备在程序改变期间更早地呈现音频，因为其处理延迟较短，并且因此对程序改变提供更快的响应。

公开(公告)号：US20090040975A1

公开(公告)日：2009-02-12

申请号：US12170560

申请日：2008-07-10

申请人： Rajiv Vijayan ,  Avneesh Agrawal ,  Sanjay Jha

发明人： Rajiv Vijayan ,  Avneesh Agrawal ,  Sanjay Jha

IPC分类号： H04W4/00

CPC分类号： H04W72/0453 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0066 ,  H04L27/2614 ,  H04W52/343 ,  H04W52/367

摘要： Techniques for managing peak-to-average power ratio (PAPR) for multi-carrier modulation in wireless communication systems. Different terminals in a multiple-access system may have different required transmit powers. The number of carriers to allocate to each terminal is made dependent on its required transmit power. Terminals with higher required transmit powers may be allocated fewer carriers (associated with smaller PAPR) to allow the power amplifier to operate at higher power levels. Terminals with lower required transmit powers may be allocated more carriers (associated with higher PAPR) since the power amplifier is operated at lower power levels. The specific carriers to assign to the terminals may also be determined by their transmit power levels to reduce out-of-band emissions. Terminals with higher required transmit powers may be assigned with carriers near the middle of the operating band, and terminals with lower required transmit powers may be assigned with carriers near the band edges.

摘要翻译： 用于管理无线通信系统中多载波调制的峰均功率比（PAPR）的技术。 多址系统中的不同终端可能具有不同的所需传输功率。 分配给每个终端的载波数量取决于其所需的发射功率。 具有更高所需发射功率的终端可以被分配较少的载波（与较小的PAPR相关联），以允许功率放大器在较高的功率电平下工作。 由于功率放大器在较低的功率电平下工作，所以具有较低所需发射功率的终端可以分配更多的载波（与更高的PAPR相关联）。 分配给终端的特定载波也可以由其发射功率电平来确定，以减少带外发射。 具有更高要求的发射功率的终端可以被分配到靠近工作频带中间的载波，并且具有较低所需发射功率的终端可以被分配给带边缘附近的载波。

公开(公告)号：US07366462B2

公开(公告)日：2008-04-29

申请号：US10968613

申请日：2004-10-18

申请人： Ramaswamy Murali ,  Gordon Kent Walker ,  Rajiv Vijayan

发明人： Ramaswamy Murali ,  Gordon Kent Walker ,  Rajiv Vijayan

IPC分类号： H04H7/00

CPC分类号： H04N5/4401 ,  H04N5/50 ,  H04N21/41407 ,  H04N21/4345 ,  H04N21/4384 ,  H04N21/44222

摘要： Techniques to seamlessly switch reception between multimedia programs are described. For “continued decoding”, a wireless device continues to receive, decode, decompress, and (optionally) display a current program, even after a new program has been selected, until overhead information needed to decode the new program is received. After receiving the overhead information, the wireless device decodes the new program but continues to decompress the current program. The wireless device decompresses the new program after decoding this program. For “early decoding”, the wireless device receives a user input and identifies a program with potential for user selection. The identified program may be the one highlighted by the user input or a program anticipated to be selected based on the user input. The wireless device initiates decoding of the identified program, prior to its selection, so that the program can be decompressed and displayed earlier if it is subsequently selected.

摘要翻译： 描述了在多媒体节目之间无缝切换接收的技术。 对于“继续解码”，即使在选择了新的程序之后，无线设备继续接收，解码，解压缩和（可选地）显示当前程序，直到接收到解码新程序所需的开销信息。 在接收到开销信息之后，无线设备解码新程序，但是继续解压缩当前程序。 解码该程序后，无线设备解压缩新程序。 对于“早期解码”，无线设备接收用户输入并识别具有用户选择潜力的节目。 识别的程序可以是由用户输入或预期将基于用户输入选择的程序突出显示的程序。 无线设备在其选择之前启动所识别的节目的解码，使得如果随后选择该节目，则可以更早地解压缩并显示节目。

公开(公告)号：US07239847B2

公开(公告)日：2007-07-03

申请号：US09915736

申请日：2001-07-26

申请人： Rashid A. Attar ,  Rajiv Vijayan ,  Roberto Padovani ,  Nagabhushana T. Sindhushayana ,  Qiang Wu ,  Peter J. Black ,  Eduardo A. S. Esteves

发明人： Rashid A. Attar ,  Rajiv Vijayan ,  Roberto Padovani ,  Nagabhushana T. Sindhushayana ,  Qiang Wu ,  Peter J. Black ,  Eduardo A. S. Esteves

IPC分类号： H04B15/00

CPC分类号： H04W36/18 ,  H04L1/20 ,  H04W36/30 ,  H04W52/24 ,  H04W52/26

摘要： Methods and apparatus for selecting a serving sector in a high rate data (HDR) communication system are disclosed. An exemplary HDR communication system defines a set of data rates, at which a sector of an Access Point may send data packets to an Access Terminal. The sector is selected by the Access Terminal to achieve the highest data throughput while maintaining a targeted packet error rate. The Access Terminal employs various methods to evaluate quality metrics of forward and reverse links from and to different sectors, and uses the quality metrics to select the sector to send data packets to the Access Terminal.

摘要翻译： 公开了在高速率数据（HDR）通信系统中选择服务扇区的方法和装置。 示例性HDR通信系统定义了一组数据速率，在该组数据速率下，接入点的扇区可以向接入终端发送数据分组。 访问终端选择该扇区以实现最高的数据吞吐量，同时保持目标分组错误率。 接入终端采用各种方法来评估来自不同扇区的前向和反向链路的质量度量，并使用质量度量来选择扇区将数据分组发送到接入终端。