Seamless context switching for radio link protocol
    94.
    发明授权
    Seamless context switching for radio link protocol 有权
    无线链路协议的无缝上下文切换

    公开(公告)号:US08611303B2

    公开(公告)日:2013-12-17

    申请号:US12012786

    申请日:2008-02-04

    IPC分类号: H04W4/00

    摘要: Techniques to support handover of a terminal from a source base station to a target base station are described. In one design, a determination is made whether a change in personality is requested by the terminal. If the answer is ‘Yes’, then the personality of the terminal may be switched by sending one or more appropriate messages. The connection and RLP for the terminal may be reset due to the change in personality. A buffer of data reported by the source base station as being served to the terminal (e.g., no NAK was sent) may be saved by a BSC/PCF. The buffer of data may be sent to the target base station when handover occurs. New data may thereafter be sent to the target base station. This buffer of duplicate data may avoid both loss of data and retransmission timeout by TCP during the handover.

    摘要翻译: 描述了支持终端从源基站到目标基站的切换的技术。 在一种设计中,确定终端是否请求个性的改变。 如果答案是“是”,则可以通过发送一个或多个适当的消息来切换终端的个性。 由于个性的变化,终端的连接和RLP可能被重置。 由BSC / PCF可以保存由源基站向终端提供的数据的缓冲器(例如没有发送NAK)。 当切换发生时,数据的缓冲器可以被发送到目标基站。 此后可将新数据发送到目标基站。 这种重复数据缓冲器可以避免在切换过程中TCP的数据丢失和重传超时。

    Dynamic coverage adjustment in a multi-carrier communication system
    95.
    发明授权
    Dynamic coverage adjustment in a multi-carrier communication system 有权
    多载波通信系统中的动态覆盖调整

    公开(公告)号:US08583137B2

    公开(公告)日:2013-11-12

    申请号:US12466090

    申请日:2009-05-14

    IPC分类号: H04W72/00 H04W40/00

    CPC分类号: H04W52/241 H04W52/343

    摘要: Techniques for dynamically varying coverage in a multi-carrier communication system are described. A sector may operate on multiple carriers. The sector may vary coverage on a given carrier k based on its load, so that less interference may be caused to other sectors when the sector load is light. In one design, the sector may communicate on a first carrier at a first transmit power level and on a second carrier at a second transmit power level equal to or lower than the first transmit power level. The sector may vary the second transmit power level based on its load to vary the coverage of the second carrier. The sector may reduce the second transmit power level to zero or a low level if the sector load is light. The sector may also vary the second transmit power level based on a function of sector load or a switching pattern.

    摘要翻译: 描述了用于在多载波通信系统中动态变化覆盖的技术。 扇区可以在多个载波上操作。 该扇区可以基于其负载来改变给定载波k上的覆盖范围,使得当扇区负载较轻时可能对其它扇区造成更少的干扰。 在一种设计中,扇区可以在第一发射功率电平的第一载波和第二载波上以等于或低于第一发射功率电平的第二发射功率电平进行通信。 扇区可以基于其负载来改变第二发射功率电平,以改变第二载波的覆盖范围。 如果扇区负载较轻,扇区可将第二发射功率电平降低至零或低电平。 扇区还可以基于扇区负载或切换模式的功能来改变第二发射功率电平。

    Methods and apparatus for obtaining content with reduced access times
    96.
    发明授权
    Methods and apparatus for obtaining content with reduced access times 有权
    获取内容减少访问时间的方法和装置

    公开(公告)号:US08577961B2

    公开(公告)日:2013-11-05

    申请号:US13010551

    申请日:2011-01-20

    申请人: Ramin Rezaiifar

    发明人: Ramin Rezaiifar

    IPC分类号: G06F15/16

    CPC分类号: G06F17/30899

    摘要: Methods and apparatus for obtaining web content are disclosed. The method includes transmitting, responsive to a user request for a webpage, a primary-content-item-request to obtain a primary content item of the webpage. And a request list that is stored on the client device is accessed to obtain a list of secondary-content-item-requests that are typically needed, in connection with the primary content item, to render the webpage. The secondary-content-item-requests are then transmitted in advance of receiving a response to the primary-content-item-request. And the web page is rendered using the primary content item and the secondary content items.

    摘要翻译: 公开了获取网页内容的方法和装置。 该方法包括响应于用户对网页的请求,发送主要内容项目请求以获得网页的主要内容项目。 并且访问存储在客户端设备上的请求列表以获得与主要内容项目相关联通常需要的次要内容项目请求的列表以呈现该网页。 然后在接收到对主要内容项目请求的响应之前发送次要内容项目请求。 并且使用主内容项和辅助内容项呈现网页。

    HEAD POSE ESTIMATION USING RGBD CAMERA
    97.
    发明申请
    HEAD POSE ESTIMATION USING RGBD CAMERA 有权
    使用RGBD摄像机的头枕估计

    公开(公告)号:US20120293635A1

    公开(公告)日:2012-11-22

    申请号:US13456061

    申请日:2012-04-25

    摘要: A three-dimensional pose of the head of a subject is determined based on depth data captured in multiple images. The multiple images of the head are captured, e.g., by an RGBD camera. A rotation matrix and translation vector of the pose of the head relative to a reference pose is determined using the depth data. For example, arbitrary feature points on the head may be extracted in each of the multiple images and provided along with corresponding depth data to an Extended Kalman filter with states including a rotation matrix and a translation vector associated with the reference pose for the head and a current orientation and a current position. The three-dimensional pose of the head with respect to the reference pose is then determined based on the rotation matrix and the translation vector.

    摘要翻译: 基于在多个图像中捕获的深度数据来确定被摄体头部的三维姿态。 头部的多个图像例如通过RGBD照相机被捕获。 使用深度数据确定头部相对于参考姿势的姿态的旋转矩阵和平移向量。 例如,可以在多个图像的每一个中提取头上的任意特征点,并将其与相应的深度数据一起提供给扩展卡尔曼滤波器,该扩展卡尔曼滤波器的状态包括旋转矩阵和与头部的参考姿势相关联的平移矢量, 当前方向和当前位置。 然后基于旋转矩阵和平移向量来确定头部相对于参考姿势的三维姿态。

    Cryptosync design for a wireless communication system
    98.
    发明授权
    Cryptosync design for a wireless communication system 有权
    无线通信系统的密码同步设计

    公开(公告)号:US08218768B2

    公开(公告)日:2012-07-10

    申请号:US10106971

    申请日:2002-03-25

    IPC分类号: H04L29/06

    摘要: A cryptosync design comprising (1) a channel identifier indicative of a particular channel via which a data packet is sent, (2) an extended time stamp indicative of a time value associated with the data packet, and (3) a counter indicative of a packet count associated with the data packet. The lengths of the extended time stamp and counter fields and the time unit for the extended time stamp are parameters that may be configured for each channel. At the sender, the extended time stamp for the cryptosync may be obtained from the System Time maintained by the sender. The counter value for the cryptosync may be provided by a counter that is maintained for the channel by the sender. The sender may include a time stamp and/or the counter value, if they are needed to derive the cryptosync at the receiver, in a header of the data packet.

    摘要翻译: 密码同步设计,包括(1)指示发送数据分组的特定信道的信道标识符,(2)指示与数据分组相关联的时间值的扩展时间戳,以及(3)指示 与数据包相关联的数据包计数。 扩展时间戳和计数器字段的长度以及扩展时间戳的时间单位是可以为每个通道配置的参数。 在发送方,密码同步的扩展时间戳可以从发送方维护的系统时间获取。 密码同步的计数器值可以由发送者为该信道维护的计数器提供。 如果在数据分组的报头中需要在接收机处导出密码同步,则发送者可以包括时间戳和/或计数器值。

    Method and apparatus for preferred roaming list compression
    99.
    发明授权
    Method and apparatus for preferred roaming list compression 有权
    优选漫游列表压缩的方法和装置

    公开(公告)号:US08209332B2

    公开(公告)日:2012-06-26

    申请号:US11586030

    申请日:2006-10-24

    IPC分类号: G06F17/30

    摘要: Techniques for efficient storage and retrieval of Preferred Roaming Lists are disclosed. In one aspect, PRL entries are stored in two tables. One table contains records that are common to two or more PRL entries. Another table stores any information that is unique to a PRL entry, as well as an indicator of which common record is associated with it. The common record is concatenated with the unique information to generate the uncompressed PRL entry. Various other aspects of the invention are also presented. These aspects have the benefit of reducing the memory requirements for storing a PRL. In addition, time required to download the compressed PRL is reduced.

    摘要翻译: 公开了用于有效地存储和检索优选漫游列表的技术。 在一个方面,PRL条目存储在两个表中。 一个表包含两个或多个PRL条目通用的记录。 另一个表存储PRL条目唯一的任何信息,以及与其相关联的常见记录的指示符。 公共记录与唯一信息连接以生成未压缩的PRL条目。 还提出了本发明的各种其它方面。 这些方面有利于减少存储PRL的内存需求。 此外,减少了压缩PRL下载所需的时间。

    Pilot grouping and set management in multi-carrier communication systems
    100.
    发明授权
    Pilot grouping and set management in multi-carrier communication systems 有权
    多载波通信系统中的导频分组和集合管理

    公开(公告)号:US08150408B2

    公开(公告)日:2012-04-03

    申请号:US11156202

    申请日:2005-06-17

    IPC分类号: H04Q7/20

    摘要: Embodiments disclosed herein relate to methods and systems for grouping pilot signals and using such grouping for pilot strength reporting and set management in multi-carrier communication systems. In one embodiment, an access network may assign a group identifier (or “group ID”) to each of the pilot signals associated with the sector, e.g., based on the coverage areas of the pilot signals, and transmit the pilot signals with the corresponding group IDs. PN offset may be used as the group ID. An access terminal may group the pilot signals received into one or more pilot groups in accordance with their group IDs, and select a representative pilot signals from each pilot group for pilot strength reporting. The access terminal may also use the pilot grouping to perform effective set management.

    摘要翻译: 本文公开的实施例涉及用于对导频信号进行分组并使用这种分组用于多载波通信系统中的导频强度报告和集合管理的方法和系统。 在一个实施例中,接入网络可以将组标识符(或“组ID”)分配给与扇区相关联的每个导频信号,例如,基于导频信号的覆盖区域,并且将导频信号与相应的 组ID。 PN偏移可以用作组ID。 接入终端可以根据其组ID将接收的导频信号分组成一个或多个导频组,并从每个导频组中选择一个代表性的导频信号用于导频强度报告。 接入终端还可以使用导频分组来执行有效的集合管理。