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61.发明授权Media-access-control protocol for a network employing multi-user wireless channels 有权采用多用户无线信道的网络的媒体访问控制协议公开(公告)号：US08149752B2
公开(公告)日：2012-04-03
申请号：US12124258
申请日：2008-05-21
申请人： Li Li , Harish Viswanathan , Ramachandran Ramjee
发明人： Li Li , Harish Viswanathan , Ramachandran Ramjee
CPC分类号： H04W40/02 , H04L1/0002 , H04L1/0057 , H04L45/125 , H04W40/34 , H04W72/1263 , Y02D70/142 , Y02D70/22 , Y02D70/30
摘要： A medium-access-control (MAC) scheduler, according to one embodiment of which a station of a wireless network evaluates data throughputs corresponding to three different transmission configurations for transmission of a packet over a first of that station's wireless links. The first and second of those transmission configurations have the packet encoded in the first and second tiers, respectively, of a two-tier signal. The third transmission configuration has the packet encoded as a conventional single-tier signal. For each of the first and second transmission configurations, the station selects a second of that station's wireless links for transmission of at least a second packet, with the first and second packets encoded in different respective tiers of the two-tier signal. The station varies power allocation between the first and second tiers to optimize data throughput for each of the first and second transmission configurations and selects from the first, second, and third transmission configurations one resulting in the highest data throughput.
摘要翻译： 媒体访问控制（MAC）调度器，根据其一个实施例，无线网络的站评估对应于三个不同传输配置的数据吞吐量，以在该站的无线链路上的第一个无线链路上传输分组。 这些传输配置中的第一和第二配置分别在两层信号的第一和第二层中编码分组。 第三传输配置将分组编码为传统的单层信号。 对于第一和第二传输配置中的每一个，站选择该站的无线链路中的第二个用于传输至少第二分组，其中第一和第二分组被编码在两层信号的不同相应层中。 该站改变第一和第二层之间的功率分配，以优化第一和第二传输配置中的每一个的数据吞吐量，并且从第一，第二和第三传输配置中选择一个导致最高数据吞吐量。
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公开(公告)号：US20100195548A1
公开(公告)日：2010-08-05
申请号：US12363450
申请日：2009-01-30
IPC分类号： G08C17/00
CPC分类号： H04L12/2668 , H04L43/0876 , H04W52/0229 , Y02D70/00 , Y02D70/142 , Y02D70/23
摘要： Embodiments of the claimed subject matter provide an approach to managing the power state of wireless network devices in a wireless network. Embodiments include a process for modifying the scheduling of data distribution device by referencing the data buffer in an access point for data intended for a wireless network client operating under a power-saving mode, and re-arranging the distribution queue of the access point to be granted priority for a time which coincides with the delivery of a polling beacon to the power-saving wireless client. Other embodiments include a method to create virtual access points for a particular usage, and to leverage access points in a wireless network for particular usages of devices in range.
摘要翻译： 所要求保护的主题的实施例提供了一种管理无线网络中的无线网络设备的功率状态的方法。 实施例包括通过参考用于在功率节省模式下操作的无线网络客户端的数据的接入点中的数据缓冲器来修改数据分发设备的调度的过程，以及将接入点的分发队列重新布置为 给予优先权一段时间，这与向省电无线客户端发送轮询信标一致。 其他实施例包括为特定使用创建虚拟接入点的方法，以及利用无线网络中的接入点来对范围内的设备的特定用途。
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公开(公告)号：US20090192688A1
公开(公告)日：2009-07-30
申请号：US12147438
申请日：2008-06-26
IPC分类号： G06F19/00
CPC分类号： G08G1/0104
摘要： A traffic sensing system for collecting information on traffic conditions is provided. A traffic sensing system includes a traffic sensing server and a mobile traffic sensing device that sends traffic reports to the traffic sensing server. An MTS device may use an accelerometer integrated into a smart phone to detect potholes, to detect when the vehicle is braking, to detect whether the MTS device is being transported via a vehicle or a pedestrian, to detect horns sounding, and so on. The MTS device reports the various conditions to the traffic sensing server for accurate assessment of traffic conditions at stretches of road through which vehicles transporting MTS devices travel.
摘要翻译： 提供了一种用于收集交通状况信息的交通感测系统。 交通感测系统包括业务传感服务器和将业务报告发送到业务传感服务器的移动业务传感设备。 MTS设备可以使用集成到智能电话中的加速度计来检测坑洼，检测车辆何时制动，以检测MTS设备是否通过车辆或行人传输，以检测喇叭的声音等等。 MTS设备向交通感测服务器报告各种条件，以准确评估运输MTS设备的车辆行驶路段的交通状况。
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公开(公告)号：US07554967B1
公开(公告)日：2009-06-30
申请号：US09662531
申请日：2000-09-15
IPC分类号： H04L12/28
摘要： Portable and/or mobile IP hosts desiring to connect to the Internet can dynamically acquire a home address and other configuration information through DHCP when powering up in a foreign network. A two-stage configuration procedure is used. First, the mobile host uses the M-IP protocol to establish contact with an addressing element, referred to as a bootstrapping agent, that is usually co-located with a M-IP Home Agent, and that allocates a temporary home address for the mobile host. The temporary address is used to create a temporary tunnel. Second, this temporary tunnel is used as the communication vehicle over which standard DHCP transactions take place. The present invention is thus arranged to use a) M-IP as the signaling mechanism for reaching the home network and dynamically allocating a temporary home address for the mobile host; and b) DHCP to allocate a permanent home address and any other configuration state for the mobile host.
摘要翻译： 希望连接到互联网的便携式和/或移动IP主机可以在外部网络中上电时通过DHCP动态获取家庭地址和其他配置信息。 使用两阶段配置步骤。 首先，移动主机使用M-IP协议与通常与M-IP归属代理共同定位的寻址元素（称为引导代理）建立联系，并且为移动终端分配临时归属地址 主办。 临时地址用于创建临时隧道。 第二，这个临时隧道被用作通过标准DHCP交易发生的通信工具。 因此，本发明被设计为使用a）M-IP作为到达家庭网络的信令机制，并为移动主机动态分配临时家庭地址; 和b）DHCP为移动主机分配永久家庭住址和任何其他配置状态。
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公开(公告)号：US20090010234A1
公开(公告)日：2009-01-08
申请号：US12124332
申请日：2008-05-21
申请人： Li Li , Harish Viswanathan , Ramachandran Ramjee
发明人： Li Li , Harish Viswanathan , Ramachandran Ramjee
IPC分类号： H04Q7/24
CPC分类号： H04W40/02 , H04L1/0002 , H04L1/0057 , H04L45/125 , H04W40/34 , H04W72/1263 , Y02D70/142 , Y02D70/22 , Y02D70/30
摘要： A routing protocol, according to one embodiment of which a first station of a wireless network monitors its outgoing transmissions corresponding to a traffic flow for occurrence of multi-tier signals and for ability to achieve a specified minimum transmission rate. Based on the monitoring, the first station may transmit an outgoing solicitation message that identifies the monitored traffic flow as a candidate for rerouting. Upon receipt of the solicitation message, a second station of the wireless network evaluates whether rerouting of the monitored traffic flow through the second station is capable of increasing data throughput for that traffic flow without decreasing data throughputs for other traffic flows presently handled by the second station. Based on this evaluation, the second station may transmit to the first station an offer to reroute the monitored traffic flow. The first station, in turn, evaluates this offer, e.g., by comparing its benefits with those of alternative offers that the first station might have received from other stations of the wireless network in response to the solicitation message. Based on the latter evaluation, the first station may reroute the monitored traffic flow through the station whose offer is deemed preferable.
摘要翻译： 根据一个实施例的路由协议，无线网络的第一站监视其对应于业务流的出局传输以发生多层信号，并且能够实现指定的最小传输速率。 基于监视，第一站可以将识别被监视的业务流的传出请求消息作为重新路由的候选者发送。 在接收到请求消息时，无线网络的第二站评估通过第二站的所监视的业务流的重新路由是否能够增加该业务流的数据吞吐量，而不减少目前由第二站处理的其他业务流的数据吞吐量 。 基于该评估，第二站可以向第一站发送重新路由所监视的业务流的报价。 反过来，第一站又通过将其优点与第一站可能响应于该请求消息从无线网络的其他站接收到的替代提供的优点进行比较来评估该提供。 基于后一种评估，第一站可以将监视的业务流重新路由通过被认为优选的站。
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66.发明授权Methods and devices for maximizing the throughput of TCP/IP data along wireless links 有权用于最大化沿无线链路的TCP / IP数据吞吐量的方法和设备公开(公告)号：US07352700B2
公开(公告)日：2008-04-01
申请号：US10657242
申请日：2003-09-09
IPC分类号： H04J1/16
摘要： The amount of TCP/IP packets which can be sent from an Internet network to a wireless network is maximized by modifying a receive window value of an acknowledgment (ACK) before the ACK is sent on to a source of data packets within the Internet network. The receive window value is modified to take into consideration delay and rate variations which occur in the wireless network.
摘要翻译： 通过在将ACK发送到因特网网络内的数据分组的源之前修改确认（ACK）的接收窗口值，可以将可从因特网网络发送到无线网络的TCP / IP分组的量最大化。 接收窗口值被修改以考虑在无线网络中发生的延迟和速率变化。
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67.发明授权IP-based distributed wireless access network architecture for CDMA networks 有权用于CDMA网络的基于IP的分布式无线接入网络架构公开(公告)号：US07340253B2
公开(公告)日：2008-03-04
申请号：US10166403
申请日：2002-06-10
IPC分类号： H04Q7/20
摘要： A system that enables end-to-end networking within CDMA oriented networks. Several base stations operating within the CDMA oriented network simultaneously receive data from the same mobile unit. A distributed algorithm operating within each of the base stations monitors the reception of the data from the mobile unit, as well as commands/instructions from other base stations. One of the base stations is appointed as a dominant base station. The appointment of a dominant base station can be done randomly or based on the quality of data being received by the base station. When the dominant base station detects a decrease in the quality of received data from the mobile unit, the dominant base station instructs the remainder of the base stations to forward any data received from the mobile to the dominant base station. If the quality of data received by another base station is greater than the quality of data received by the dominant base station, the dominant base station will inform the alternate base station that it is now the dominate base station. If the dominant base station determines that the quality of data received exceeds a particular threshold, the dominant base station will instruct the other base stations to cease reception of data from the particular mobile unit.
摘要翻译： 在面向CDMA的网络中实现端到端网络的系统。 在CDMA定向网络内工作的几个基站同时从同一移动单元接收数据。 在每个基站内操作的分布式算法监视来自移动单元的数据的接收以及来自其他基站的命令/指令。 其中一个基站被指定为主要基站。 可以随机地或基于由基站接收的数据的质量来完成主要基站的任命。 当主导基站检测到来自移动单元的接收数据的质量下降时，主要基站指示剩余的基站将从移动站接收的任何数据转发到主基站。 如果由另一个基站接收的数据质量大于由主要基站接收的数据的质量，则主导的基站将通知备用基站它现在是主要的基站。 如果主要基站确定接收的数据质量超过特定阈值，则主导基站将指示其他基站停止从特定移动单元接收数据。
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公开(公告)号：US20070070933A1
公开(公告)日：2007-03-29
申请号：US11236735
申请日：2005-09-28
申请人： Mun-Choon Chan , Ramachandran Ramjee , Tian Bu
发明人： Mun-Choon Chan , Ramachandran Ramjee , Tian Bu
IPC分类号： H04Q7/00
摘要： Estimates are provided for the number of links needed in a Internet Protocol-Radio Access Network (IP-RAN) to ensure the IP-RAN is resilient to base station and radio network controller type failures.
摘要翻译： 为互联网协议 - 无线电接入网络（IP-RAN）所需的链路数量提供了估计，以确保IP-RAN对基站和无线电网络控制器类型故障具有弹性。
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69.发明申请Methods and devices for maximizing the throughput of TCP/IP data along wireless links 有权用于最大化沿无线链路的TCP / IP数据吞吐量的方法和设备公开(公告)号：US20050053002A1
公开(公告)日：2005-03-10
申请号：US10657242
申请日：2003-09-09
申请人： Mun Chan , Ramachandran Ramjee
发明人： Mun Chan , Ramachandran Ramjee
IPC分类号： H04L12/56
摘要： The amount of TCP/IP packets which can be sent from an Internet network to a wireless network is maximized by modifying a receive window value of an acknowledgment (ACK) before the ACK is sent on to a source of data packets within the Internet network. The receive window value is modified to take into consideration delay and rate variations which occur in the wireless network.
摘要翻译： 通过在将ACK发送到因特网网络内的数据分组的源之前修改确认（ACK）的接收窗口值，可以将可从因特网网络发送到无线网络的TCP / IP分组的量最大化。 接收窗口值被修改以考虑在无线网络中发生的延迟和速率变化。
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公开(公告)号：US06842462B1
公开(公告)日：2005-01-11
申请号：US09466485
申请日：1999-12-17
申请人： Ramachandran Ramjee , Thomas F. La Porta , Kannan Varadhan , Luca Salgarelli , Mark Haner , Arun Narayan Netravali , Gerard Terence Foster
发明人： Ramachandran Ramjee , Thomas F. La Porta , Kannan Varadhan , Luca Salgarelli , Mark Haner , Arun Narayan Netravali , Gerard Terence Foster
CPC分类号： H04L63/0823 , H04L63/0428 , H04L69/08 , H04W8/26 , H04W12/06 , H04W40/02 , H04W76/20 , H04W80/04 , H04W92/02
摘要： A General Packet Radio Service (GPRS) Accessed Extended Mobile Internet Protocol (EMIP) [G-EMIP] network is provided for wireless mobile device access to external packet data networks. Domains are defined to incorporate a subnet of standard GPRS and EMIP network entities accessed through a Domain Router. Packet access at the radio interface is provided using the base station portion of a GPRS network. Wireless link specific processing is relegated to this potion of the G-EMIP network. EMIP is utilized as a backbone network to provide mobility and service management and interconnection to external networks. A GPRS-IP Interworking entity (GII) interworks IP and GPRS protocols between GPRS and IP addressable network entities (i.e., translates messages of each protocol to corresponding messages of the other protocol). Mobility-related functionality is handled at the IP (network) layer. Mobile IP is used to support the macro-mobility and Handoff-Aware Wireless Access Internet Infrastructure (HAWAII) is used to support micro-mobility and paging. The Domain Router provides packet service management and interacts with a Home Location Register/Authentication Center, which provides GRPS registration, authentication and encryption.
摘要翻译： 通用分组无线业务（GPRS）接入扩展移动因特网协议（EMIP）[G-EMIP]网络用于无线移动设备接入外部分组数据网络。 域被定义为包含通过域路由器访问的标准GPRS和EMIP网络实体的子网。 使用GPRS网络的基站部分提供在无线电接口处的分组接入。 无线链路特定处理被归入G-EMIP网络的这一药水。 EMIP被用作骨干网络，以提供移动性和服务管理以及与外部网络的互连。 GPRS-IP互通实体（GII）在GPRS和IP可寻址网络实体之间互通IP和GPRS协议（即，将每个协议的消息转换为另一协议的相应消息）。 移动性相关功能在IP（网络）层处理。 移动IP用于支持宏移动性和Handoff-Aware无线接入互联网基础架构（HAWAII）用于支持微移动和分页。 域路由器提供数据包服务管理，并与归属位置寄存器/认证中心交互，该中心提供GRPS注册，认证和加密。
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