MOBILE VIRTUAL LAN
    61.
    发明申请
    MOBILE VIRTUAL LAN 有权
    移动虚拟局域网

    公开(公告)号:US20100232412A1

    公开(公告)日:2010-09-16

    申请号:US12785902

    申请日:2010-05-24

    申请人: Robert C. Meier

    发明人: Robert C. Meier

    IPC分类号: H04W88/08

    摘要: A communication system in which multiple protocols and proxy services are executed by an access point. In one embodiment of the invention, GVRP and GMRP registrations are combined in a single packet when a wireless device roams to a different VLAN. In addition, outbound GVRP and GMRP multicast messages are handled by an access point (also referred to as a GVRP and GMRP “gateway”) such that the wireless device is not burdened with the associated computational overhead. In a further embodiment, a wireless device may dynamically switch between a VLAN-aware state and a VLAN-unaware state depending on the nature of a detected access point. For example, if a relevant access point supports GVRP, the wireless device may operate as a VLAN terminal. If a wireless device is not attached to an access point with a matching VLAN ID, the wireless device sends and receives VLAN tagged frames. If a wireless device configured with a VLAN ID is attached to an access point with a matching VLAN ID, or if the wireless device is attached to a non-VLAN access point, then the wireless device may send and receive raw/untagged frames. In addition to the gateways described below, the ability of a wireless device to detect when it can send untagged frames is considered novel. In another embodiment of the invention, a special ID that is different than the native VLAN ID for a switch port is used for VLAN-unaware devices. This allows such devices that do not issue tagged frames to belong to a single VLAN ID.

    摘要翻译: 由接入点执行多个协议和代理服务的通信系统。 在本发明的一个实施例中,当无线设备漫游到不同的VLAN时,将GVRP和GMRP注册组合在单个分组中。 此外,出站GVRP和GMRP组播消息由接入点(也称为GVRP和GMRP“网关”)处理,使得无线设备不负担相关的计算开销。 在进一步的实施例中,无线设备可以根据检测到的接入点的性质在VLAN感知状态和VLAN不知情状态之间动态切换。 例如,如果相关接入点支持GVRP,则无线设备可以作为VLAN终端运行。 如果无线设备未连接到具有匹配VLAN ID的接入点,则无线设备发送和接收VLAN标记的帧。 如果配置了VLAN ID的无线设备连接到具有匹配VLAN ID的接入点,或者无线设备连接到非VLAN接入点,则无线设备可以发送和接收原始/未标记帧。 除了下面描述的网关之外,无线设备检测何时可以发送未标记的帧的能力被认为是新颖的。 在本发明的另一个实施例中,与VLAN交换机端口的本地VLAN ID不同的特殊ID用于VLAN不知情的设备。 这允许不发出标记帧的这些设备属于单个VLAN ID。

    SYSTEM AND METHOD FOR EFFICIENTLY ROUTING INFORMATION

    公开(公告)号:US20090252136A1

    公开(公告)日:2009-10-08

    申请号:US12482225

    申请日:2009-06-10

    IPC分类号: H04W4/00 H04L12/56

    摘要: A hierarchical communication system is described in which two wireless local area networks exhibiting substantially different characteristics are employed to link inherently portable or mobile computer devices. A series of radio base stations make up a infrastructure network. The infrastructure network and at least one portable computer device make up the first local area network. The communication on the first local area network is accomplished by spread spectrum frequency hopping communication A second local area network allows for radio communication between a portable computer device and peripheral devices with built-in transceivers utilized by the portable computer device. The communication in each local area network is controlled by a reservation access communication protocol. The communication protocol facilitates frequency hopping synchronization and supports adaptive data rate selection based upon the quality of communication on the communication channel. The communication protocol prevents interference between communication on the first local area network and communication on the second local area network. In a premises LAN, a series of radio base stations and a backbone LAN make up an infrastructure network. The infrastructure network and at least one mobile computing device make up a higher-power LAN, utilizing a frequency hopping protocol. A lower-power LAN allows for radio communication between a mobile computing device and peripheral devices, utilizing a single-frequency spread spectrum protocol. A vehicular LAN provides for short-range communication between a vehicle terminal and a portable terminal. When out of direct RF range of the premises LAN, the vehicle terminal maintains indirect communication when necessary with the premises LAN via one of several alternate RF channels. A microprocessor, located inside radio units which participate in multiple LAN's, selects the appropriate protocol, frequency band and power level for communicating through the network.

    Uniform power save method for 802.11e stations
    65.
    发明授权
    Uniform power save method for 802.11e stations 有权
    802.11e台统一省电方式

    公开(公告)号:US07551948B2

    公开(公告)日:2009-06-23

    申请号:US10626214

    申请日:2003-07-24

    IPC分类号: H04M1/00

    摘要: A power-save QSTA notifies an Access Point (AP) that its operating in a automatic power-save delivery (APSD) mode and negotiates a periodic wakeup schedule and a scheduled startup time with the AP. Wakeup times are synchronized with the 802.11 Timer Synchronization Function (TSF). The AP automatically sends frames to the QSTA when it determines the QSTA is in an awake state, otherwise downlink frames are buffered. The AP uses a combination poll+EDCF access method wherein at the start of each wakeup period the AP sends a poll to the QSTA, the poll having a flag that indicates to the QSTA if the AP has a downlink fame buffered for the QSTA. In addition, a Proxy ARP Server in an AP maintains IP/MAC bindings for associated clients so that when the AP receives a proxy ARP request for a client, the AP may respond for the client.

    摘要翻译: 省电QSTA通过接入点(AP)通过自动节电传送(APSD)模式运行,并与AP协商周期性的唤醒时间表和计划的启动时间。 唤醒时间与802.11定时器同步功能(TSF)同步。 当确定QSTA处于唤醒状态时,AP自动向QSTA发送帧,否则下行帧被缓冲。 AP使用组合轮询+ EDCF接入方法,其中在每个唤醒周期开始时,AP向QSTA发送轮询,该轮询具有向QSTA指示的标志,如果AP具有为QSTA缓冲的下行信道。 此外,AP中的代理ARP服务器维护关联客户端的IP / MAC绑定,以便当AP接收到客户端的代理ARP请求时,AP可以响应客户端。

    Redundant radio frequency network having a roaming terminal communication protocol
    66.
    发明授权
    Redundant radio frequency network having a roaming terminal communication protocol 失效
    具有漫游终端通信协议的冗余射频网络

    公开(公告)号:US07548553B2

    公开(公告)日:2009-06-16

    申请号:US11223404

    申请日:2005-09-09

    申请人: Robert C. Meier

    发明人: Robert C. Meier

    IPC分类号: H04Q1/00

    摘要: Disclosed herein is a redundant network and communication protocol at least including host computers, RF base stations, and roaming terminals. The network may utilize a polling communication protocol such that under heavy traffic conditions, a roaming terminal wishing to initiate communication may be required to determine whether the channel is clear by listening for an entire interpoll gap time. When a hidden terminal is communicating, the roaming terminal may conclude that the communication is taking place upon receiving a polling frame directed to the hidden terminal from the normally silent base station. Inherent redundancy techniques may be used with a spanning tree approach for determining the most efficient pathways from a source to a destination and ensuring that the network adapts to spatial changes or breakdowns within the network.

    摘要翻译: 本文公开了至少包括主计算机,RF基站和漫游终端的冗余网络和通信协议。 网络可以利用轮询通信协议,使得在繁忙的业务条件下,可能需要希望发起通信的漫游终端来通过监听整个间隙间隔时间来确定信道是否清除。 当隐藏终端正在通信时,漫游终端可以断定当从正常无声的基站接收到指向隐藏终端的轮询帧时,进行通信。 固有冗余技术可以与生成树方法一起使用,用于确定从源到目的地的最有效的路径,并确保网络适应网络内的空间变化或故障。

    Hierarchical Communication System Providing Intelligent Data, Program and Processing Migration
    67.
    发明申请
    Hierarchical Communication System Providing Intelligent Data, Program and Processing Migration 有权
    提供智能数据,程序和处理迁移的分层通信系统

    公开(公告)号:US20090080398A1

    公开(公告)日:2009-03-26

    申请号:US12236372

    申请日:2008-09-23

    IPC分类号: H04W40/02

    摘要: A hierarchical communication system, arranged in a spanning tree configuration, is described in which wired and wireless communication networks exhibiting substantially different characteristics are employed in an overall scheme to link portable or mobile computing devices. Copies of data, program code and processing resources are migrated from their source toward requesting destinations based on request frequency, communication link costs and available local storage and/or processing resources. Each appropriately configured network device acts as an active participant in network migration. In addition, portable two-dimensional (2-D) code reading terminals are configured to wirelessly communicate compressed 2-D images toward stationary access servers that identify the code image through decoding and through comparison with a database of images that have previously been decoded and stored.

    摘要翻译: 描述了以生成树配置布置的分级通信系统,其中在总体方案中采用表现出基本上不同特性的有线和无线通信网络来链接便携式或移动计算设备。 基于请求频率,通信链路成本和可用的本地存储和/或处理资源,数据,程序代码和处理资源的副本从其源向请求目的地迁移。 每个适当配置的网络设备充当网络迁移的主动参与者。 此外,便携式二维(2-D)码读取终端被配置为将压缩的二维图像无线地传送到固定式访问服务器,其通过解码识别代码图像,并且通过与先前已被解码的图像的数据库进行比较,以及 存储。

    Point-controlled contention arbitration in multiple access wireless LANs
    69.
    发明授权
    Point-controlled contention arbitration in multiple access wireless LANs 有权
    多点接入无线局域网中的点控竞争仲裁

    公开(公告)号:US07251232B1

    公开(公告)日:2007-07-31

    申请号:US09953820

    申请日:2001-09-12

    申请人: Robert C. Meier

    发明人: Robert C. Meier

    IPC分类号: H04Q7/24

    摘要: A method providing quality of service during a contention period. A tiered access protocol enables an Access Point to act as a channel arbitrator and gain control a channel during a contention period. The Enhanced Access Point waits a specified amount of time after before taking control of a channel for either transmitting an outbound frame or initiating Polled-Contention Free Bursts. In addition, a method for increasing the time span between Delivery Traffic Indication Message beacons by tracking when Wireless Stations are able to receive messages and instantly delivering messages to those Wireless Stations.

    摘要翻译: 在争用期间提供服务质量的方法。 分层访问协议使得接入点能够充当信道仲裁器,并且在争用期间增益控制信道。 增强接入点在控制发送出站帧的信道或启动轮询竞争自由突发之前等待指定的时间量。 另外,一种通过在无线站能够接收消息并且立即向那些无线站传送消息的情况下进行跟踪来增加传送业务指示消息信标之间的时间跨度的方法。

    DHCP over mobile IP
    70.
    发明授权

    公开(公告)号:US07096273B1

    公开(公告)日:2006-08-22

    申请号:US10035954

    申请日:2001-12-26

    申请人: Robert C. Meier

    发明人: Robert C. Meier

    IPC分类号: G06E15/16

    摘要: A protocol that enables an 802 mobile host to obtain a “home IP address,” and other configuration parameters via DHCP or BOOTP, while attached to either its home subnet or a foreign subnet. Inner and outer encapsulation headers are used to forward DHCP messages from a DHCP server outbound through a “forward tunnel,” to a mobile host on a foreign subnet and are also used to forward DHCP messages from a mobile host on a foreign subnet inbound through a “reverse tunnel” to the home subnet. A mobile host must add an inner encapsulation header to inbound DHCP packets with the source IP address set to 0 to indicate that the packet is from a mobile host that does not have a registered home IP address. Outer encapsulation headers contain the home address and the care-of address for the mobile host.

    摘要翻译: 一种允许802移动主机通过DHCP或BOOTP获取“家庭IP地址”以及其他配置参数,同时连接到其家庭子网或外部子网的协议。 内部和外部封装头用于通过“转发隧道”将DHCP消息从DHCP服务器转发到外部子网上的移动主机,并且还用于通过外部子网中的外部子网转发来自移动主机的DHCP消息 “反向隧道”到家庭子网。 移动主机必须向源IP地址设置为0的入站DHCP数据包添加内部封装标头,以指示该数据包来自没有注册家庭IP地址的移动主机。 外部封装头包含移动主机的归属地址和转交地址。