公开(公告)号：US20070149230A1

公开(公告)日：2007-06-28

申请号：US11642203

申请日：2006-12-20

申请人： Jian Song ,  Junbiao Zhang ,  Ming Li

发明人： Jian Song ,  Junbiao Zhang ,  Ming Li

IPC分类号： H04B7/00

CPC分类号： H04W72/02 ,  H04W72/085 ,  H04W72/10 ,  H04W84/12 ,  H04W84/20

摘要： Disclosed is a method of dynamical frequency selecting for a basic service set established by a main wireless device in a wireless local area network. The method comprises steps of a determining step for determining whether a new channel to be used by said BSS is needed; a scanning step conducted by said main wireless device for scanning all channels based on a random priority to detect whether other adjacent BSSs are existing and performing DFS concurrently; a measuring step conducted by said main wireless device based on the scanning result for exisitn operational BSSs for measuring channel quality of a plurality of channels; selecting one channel based on the channel quality parameters. The present invention advantageously provides a dynamic frequency selection method without any modification for the IEEE 802.11 standard, or any requirement for the implementation of the wireless stations.

摘要翻译： 公开了一种在无线局域网中由主无线设备建立的基本业务集的动态频率选择方法。 该方法包括以下步骤：确定是否需要由所述BSS使用的新信道; 由所述主无线设备执行的用于基于随机优先级扫描所有信道以检测是否存在其他相邻BSS并且同时执行DFS的扫描步骤; 基于用于测量多个信道的信道质量的现有操作BSS的扫描结果，由所述主无线设备执行的测量步骤; 基于通道质量参数选择一个通道。 本发明有利地提供了一种动态频率选择方法，而无需对IEEE 802.11标准进行任何修改，或对无线电台实现的任何要求。

公开(公告)号：US20070058535A1

公开(公告)日：2007-03-15

申请号：US10573109

申请日：2003-09-30

申请人： Guillaume Bichot ,  Junbiao Zhang

发明人： Guillaume Bichot ,  Junbiao Zhang

IPC分类号： H04L12/26

CPC分类号： H04L45/00 ,  H04L45/302 ,  H04W40/04 ,  H04W40/12 ,  H04W84/12

摘要： The Quality of Service (QoS) level/service level within a wired network associated with a wireless Local Area Network (LAN) is controlled by assigning to each incoming information frame a Virtual Local Area Network (VLAN) number in accordance with the QoS level/service level determined for that frame. The frame is then routed in the network in accordance with the VLAN number to assure that the path(s) carrying the frame have the requisite characteristics, such as bandwidth, to satisfy the determined QoS level/service level.

摘要翻译： 与无线局域网（LAN）相关联的有线网络内的服务质量（QoS）级别/服务级别通过根据QoS级别/分配给每个传入信息帧进行虚拟局域网（VLAN）号码的控制， 为该帧确定的服务级别。 然后根据VLAN号码在网络中路由帧，以确保携带帧的路径具有必要的特性，例如带宽，以满足确定的QoS级别/服务级别。

公开(公告)号：US20060193297A1

公开(公告)日：2006-08-31

申请号：US10550964

申请日：2004-01-29

申请人： Junbiao Zhang ,  Saurabh Mathur ,  Kumar Ramaswamy

发明人： Junbiao Zhang ,  Saurabh Mathur ,  Kumar Ramaswamy

IPC分类号： H04Q7/24

CPC分类号： H04W12/04 ,  H04L63/06 ,  H04L63/062 ,  H04L63/08 ,  H04W12/06 ,  H04W28/18 ,  H04W36/0038 ,  H04W48/08 ,  H04W80/04 ,  H04W88/08 ,  H04W88/16

摘要： A system, method, and computer readable medium for enabling roaming of wireless client stations among wireless access points are disclosed. A gateway programmed to receive session data requests is provided in a network, which comprises access points which are programmed to send session data requests to the gateway. The gateway sends session information setting commands to the requesting access point, or sends a session data failure response to the access point.

摘要翻译： 公开了一种用于使无线接入点之间的无线客户端站漫游的系统，方法和计算机可读介质。 编程为接收会话数据请求的网关在网络中提供，网络包括被编程为向网关发送会话数据请求的接入点。 网关向请求接入点发送会话信息设置命令，或者向接入点发送会话数据故障响应。

公开(公告)号：US20060179305A1

公开(公告)日：2006-08-10

申请号：US10549408

申请日：2004-03-11

申请人： Junbiao Zhang

发明人： Junbiao Zhang

IPC分类号： H04L9/00

CPC分类号： H04L9/0891 ,  H04L9/083 ,  H04L9/0869 ,  H04L63/0428 ,  H04L63/068 ,  H04L2209/80 ,  H04W12/04031 ,  H04W84/12

摘要： The invention provides a method for improving the security of a mobile terminal in a WLAN environment by installing two shared secrets instead of one shared secret, the initial session key, on both the wireless user machine and the WLAN access point during the user authentication phase. One of the shared secrets is used as the initial session key and the other is used as a secure seed. Since the initial authentication is secure, these two keys are not known to a would be hacker. Although the initial session key may eventually be cracked by the would be hacker, the secure seed remains secure as it is not used in any insecure communication.

摘要翻译： 本发明提供一种通过在用户认证阶段期间在无线用户机器和WLAN接入点上安装两个共享秘密而不是一个共享秘密（初始会话密钥）来提高WLAN环境中的移动终端的安全性的方法。 共享秘密之一被用作初始会话密钥，另一个用作安全种子。 由于初始身份验证是安全的，所以这两个密钥对于黑客来说是不知道的。 虽然初始会话密钥可能最终被黑客破解，但安全种子仍然是安全的，因为它不会用于任何不安全的通信。

公开(公告)号：US20060156347A1

公开(公告)日：2006-07-13

申请号：US10518997

申请日：2003-06-19

申请人： Junbiao Zhang ,  Jun Li ,  Kumar Ramaswamy

发明人： Junbiao Zhang ,  Jun Li ,  Kumar Ramaswamy

IPC分类号： H04N7/16 ,  G06F13/00 ,  H04N5/445

CPC分类号： H04N7/17318 ,  H04N5/4401 ,  H04N5/765 ,  H04N21/234327 ,  H04N21/2662 ,  H04N21/4126 ,  H04N21/41407 ,  H04N21/4263 ,  H04N21/43637 ,  H04N21/440281 ,  H04N21/4621 ,  H04N21/4622 ,  H04N21/6131 ,  H04N21/64792 ,  H04W4/00 ,  H04W4/06 ,  H04W28/14 ,  H04W28/22 ,  H04W48/18 ,  H04W88/06

摘要： There is provided a method for managing the downloading and display of a video program using a mobile device in an networking environment that includes a first radio access network and a second radio access network that has a faster transfer rate than the first network. A layer of video program that has been encoded into multiple layers is downloaded via the first or second network. The downloaded video program is displayed at a playback rate that corresponds to a display quality. Excess portion of the downloaded video program that result when a rate at which the video program is displayed are buffered. The number of layers being downloaded and the playback rate at which the video program is displayed are increased to increase the display quality, when the buffered excess portions exceeds a threshold level.

摘要翻译： 提供了一种用于在包括第一无线电接入网络和具有比第一网络更快的传输速率的第二无线电接入网络的联网环境中使用移动设备来管理视频节目的下载和显示的方法。 已经编码成多层的视频节目层通过第一或第二网络被下载。 下载的视频节目以对应于显示质量的播放速率显示。 当显示视频节目的速率被缓冲时导致的下载的视频节目的超出部分。 当缓冲的多余部分超过阈值电平时，增加正在下载的层的数量和显示视频节目的重放速率以增加显示质量。

公开(公告)号：US20060156003A1

公开(公告)日：2006-07-13

申请号：US10524656

申请日：2003-08-13

申请人： Junbiao Zhang ,  Kumar Ramaswamy ,  Jun Li

发明人： Junbiao Zhang ,  Kumar Ramaswamy ,  Jun Li

IPC分类号： H04N17/00

CPC分类号： H04N1/32144 ,  H04N2201/3205 ,  H04N2201/3246

摘要： A method of watermarking digital media data in a user device using a watermark that contains information derived from the digital media data content and the user device specific information to enable improved enforcement of the digital media data content copyright license.

摘要翻译： 一种使用包含从数字媒体数据内容和用户设备特定信息导出的信息的水印在用户设备中对数字媒体数据进行水印的方法，以便能够改进数字媒体数据内容版权许可的执行。

公开(公告)号：US07050416B2

公开(公告)日：2006-05-23

申请号：US10144878

申请日：2002-05-14

申请人： Guillaume Bichot ,  Shaily Verma ,  Junbiao Zhang

发明人： Guillaume Bichot ,  Shaily Verma ,  Junbiao Zhang

IPC分类号： H04L12/66 ,  H04Q7/24 ,  H04Q1/00

CPC分类号： H04W12/06 ,  H04L45/04 ,  H04W8/26 ,  H04W40/248 ,  H04W40/34 ,  H04W40/36 ,  H04W80/04 ,  H04W88/14

摘要： A General Packet Radio Service (GPRS) network (141) includes at least one, and preferably, a plurality of radio access networks (161–16m), each providing radio access to one or more mobile terminal users (121–12n). Associated with one or more of the access networks is a corresponding one of a plurality of Serving GPRS Service Nodes (SGSNs) (241–24m), each node serving to identify and authenticate a mobile terminal user. Advantageously, each SGSN also serves to cache IP packets from a sending mobile terminal user and to examine each packet to determine if the destination IP address corresponds to another mobile terminal user in the network. If so, then that SGSN routes the packet to the destination mobile terminal user. Otherwise, if the packet destination lies outside the network, the SGSN routes the packet to a gateway (32) for routing beyond the network.

摘要翻译： 通用分组无线业务（GPRS）网络（14-1）包括至少一个，优选地，多个无线电接入网络（16-1-SUB） 每个提供对一个或多个移动终端用户的无线电接入（12＆lt; 1＆gt;＆lt; N＆gt;）。 与一个或多个接入网络相关联的是多个服务GPRS服务节点（SGSN）中的相应的服务GPRS服务节点（SGSN）（每个节点服务于 识别和认证移动终端用户。 有利地，每个SGSN还用于缓存来自发送移动终端用户的IP分组，并且检查每个分组以确定目的地IP地址是否对应于网络中的另一个移动终端用户。 如果是，则SGSN将该分组路由到目的移动终端用户。 否则，如果分组目的地位于网络外部，则SGSN将分组路由到网关（32），用于路由超出网络。

公开(公告)号：US20050240760A1

公开(公告)日：2005-10-27

申请号：US10517134

申请日：2003-05-27

申请人： Junbiao Zhang

发明人： Junbiao Zhang

IPC分类号： H04W12/06 ,  G06F21/35 ,  H04L9/00 ,  H04L9/08 ,  H04L9/30 ,  H04L9/32 ,  H04L29/06 ,  H04L29/08

CPC分类号： H04W12/06 ,  H04L9/0825 ,  H04L9/3263 ,  H04L63/062 ,  H04L63/0823 ,  H04L63/0892 ,  H04L2209/56 ,  H04L2209/80 ,  H04W12/04 ,  H04W84/12 ,  H04W88/06 ,  H04W92/02

摘要： A method for authentication authorization and accounting (AAA) in an interworking between at least two networks. The at least two networks are capable of communicating with a broker and include a first network and a second network to user certificate from a user device corresponding to a user of the first network. The first network to user certificate is signed by at a first network private key and includes a broker to first network certificate and a user public key. The broker to first network certificate is signed by a broker private key and includes a first network public key. A session key is sent from the second network to the user device when the broker to first network certificate and the first network to user certificate are determined to be authentic by the second network based upon the broker public key and the first network public key, respectively. The session key is encrypted with the user public key. The session key is permitting the user device to access the second network.

摘要翻译： 在至少两个网络之间的互通中的认证授权和计费（AAA）的方法。 所述至少两个网络能够与代理通信，并且从与第一网络的用户对应的用户设备包括第一网络和第二网络到用户证书。 第一个网络到用户证书由第一个网络私钥签名，并且包括一个经纪人到第一个网络证书和一个用户公钥。 第一网络证书的代理由代理私钥签名并且包括第一网络公钥。 当基于代理公开密钥和第一网络公钥分别确定第一网络证书和第一网络到用户证书的代理被第二网络确定为可信时，会话密钥从第二网络发送到用户设备 。 会话密钥用用户公钥加密。 会话密钥允许用户设备访问第二网络。

公开(公告)号：US20050102352A1

公开(公告)日：2005-05-12

申请号：US10253283

申请日：2002-09-24

申请人： Junbiao Zhang ,  Jun Li

发明人： Junbiao Zhang ,  Jun Li

IPC分类号： H04L12/24 ,  H04L12/26 ,  H04L12/28 ,  H04L12/56 ,  H04L29/08 ,  G06F15/16

CPC分类号： H04L67/36 ,  H04L41/0896 ,  H04L43/00 ,  H04L43/16 ,  H04L67/04 ,  H04W76/10

摘要： In a communications system (10), activation of a user interface (e.g., a hyperlink) to select an application depends on one or more conditions that might impact the application. Monitoring of the condition(s) occurs to determine whether each condition falls outside a corresponding threshold. If so, the interface is constrained, either partially or completely.

摘要翻译： 在通信系统（10）中，激活用户界面（例如，超链接）以选择应用取决于可能影响应用的一个或多个条件。 发生条件的监视以确定每个条件是否落在相应的阈值之外。 如果是这样，界面被部分或完全限制。

公开(公告)号：US09270408B2

公开(公告)日：2016-02-23

申请号：US13498890

申请日：2010-09-15

申请人： Wei Liu ,  Cheng Sui ,  Junbiao Zhang ,  Jin Fei Yu

发明人： Wei Liu ,  Cheng Sui ,  Junbiao Zhang ,  Jin Fei Yu

IPC分类号： H04W4/00 ,  H04L1/00

CPC分类号： H04L1/0002 ,  H04L1/0016 ,  H04L1/002

摘要： A method of communication between a transmitter and a receiver over a channel is provided. The transmitter is capable of transmitting packets with multiple data rates, each of which adapts to a respective channel condition with regards to the performance of the communication. The method comprises the steps of at the level of the transmitter: upon detection of a disappearance of deterioration of the channel condition, transmitting packets with a data rate selected from a group of stable data rates that are stably used before the disappearance of the deterioration but larger than the last data rate before disappearance of the deterioration.

摘要翻译： 提供了一种通过信道在发射机和接收机之间进行通信的方法。 发射机能够发送具有多个数据速率的分组，每个数据速率适应于相对于通信性能的相应信道状况。 该方法包括以下步骤：在发射机的电平上：在检测到信道状况恶化消失后，以数据速率发送数据速率，该数据速率选自在恶化消失之前稳定使用的一组稳定数据速率， 大于恶化消失前的最后数据速率。