公开(公告)号：WO2006049821A3

公开(公告)日：2006-12-07

申请号：PCT/US2005036599

申请日：2005-10-11

Applicant: CISCO TECH INC

Inventor： MEIER ROBERT C ,  NORMAN STUART ,  SMITH DOUGLAS A ,  CAM WINGET NANCY

IPC: H04J3/16 ,  H04L12/28 ,  H04L12/66 ,  H04W4/06 ,  H04W28/02 ,  H04W84/12

CPC classification number: H04L47/13 ,  H04L12/189 ,  H04L47/14 ,  H04L47/15 ,  H04L47/70 ,  H04L47/782 ,  H04L47/801 ,  H04L47/806 ,  H04L47/824 ,  H04W28/02 ,  H04W72/005 ,  H04W84/12

Abstract: A method for multicast load balancing in a wireless network having a plurality of access points. The method includes setting a maximum Internet protocol multicast bandwidth for the access points, receiving an admissions control request from a client at one of the access points, and determining whether the admissions control request from the client is for an admitted or unadmitted multicast stream at the access point. The access point is responsive to the admissions control request for the admitted multicast stream by servicing the admitted multicast stream and to the admissions control request for the unadmitted multicast stream by servicing the unadmitted multicast stream where the bandwidth required for the unadmitted multicast stream, plus that portion of the access point bandwidth currently used for all existing downlink multicast streams, does not exceed the maximum internet protocol multicast bandwidth for the access point.

Abstract translation: 一种用于具有多个接入点的无线网络中的组播负载均衡的方法。 该方法包括为接入点设置最大互联网协议组播带宽，从接入点之一处的客户端接收招生控制请求，以及确定来自客户端的接入控制请求是否为接入点或未接纳的组播流 切入点。 所述接入点通过服务所述接入的多播流以及通过服务未被接纳的多播流来对未接纳的多播流进行接纳控制请求来响应所允许的多播流的接纳控制请求，以及对未接纳的多播流所需的带宽加上 当前用于所有现有下行链路多播流的接入点带宽的一部分不超过接入点的最大互联网协议组播带宽。

公开(公告)号：WO2007076232A3

公开(公告)日：2007-12-06

申请号：PCT/US2006061826

申请日：2006-12-11

Applicant: CISCO TECH INC

Inventor： MEIER ROBERT C ,  DETTLOFF KEITH ,  WACLAWSKY JOHN G

IPC: H04W8/00 ,  H04W28/08 ,  H04W48/08 ,  H04W64/00 ,  H04W84/12 ,  H04W88/08

CPC classification number: H04W8/005 ,  H04W28/08 ,  H04W36/0061 ,  H04W48/08 ,  H04W64/00 ,  H04W84/12 ,  H04W88/06 ,  H04W88/08

Abstract: A system and method wherein mobile nodes scan both 802.16 and 802.11 radio channels for neighbor access points. A mobile node reports both WiMax and WiFi neighbor access points to its parent access point. A parent access point advertises both WiMax and WiFi neighbor access points to child mobile nodes to facilitate faster roaming and load balancing. A parent WiMax AP can direct a mobile node to roam to a neighbor WiFi access point that has a lighter load or offers enhanced services. As an option, a location tracking protocol is used to determine the location of a mobile node and the mobile node's parent AP advertises neighbor APs that offer services in the mobile node's location.

Abstract translation: 一种系统和方法，其中移动节点扫描802.16和802.11无线电信道以寻找邻居接入点。 移动节点向其父接入点报告WiMax和WiFi邻居接入点。 父接入点将WiMax和WiFi邻居接入点通告给子移动节点，以促进更快的漫游和负载平衡。 父母WiMax AP可以引导移动节点漫游到负载较轻或提供增强服务的邻居WiFi接入点。 作为选项，位置跟踪协议用于确定移动节点的位置，并且移动节点的双亲AP通告在移动节点的位置提供服务的邻居AP。

公开(公告)号：WO2005114882A3

公开(公告)日：2006-10-19

申请号：PCT/US2005016306

申请日：2005-05-10

Applicant: CISCO TECH INC

Inventor： MEIER ROBERT C ,  GRISWOLD VICTOR

IPC: H04B7/14 ,  H04B1/38 ,  H04B7/185 ,  H04J3/24 ,  H04W4/06 ,  H04W52/02 ,  H04W88/08

CPC classification number: H04W4/06 ,  H04W52/0216 ,  H04W72/005 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/23

Abstract: A power-save method for a network (unit 145, Fig. 1) with an access point (unit 135, Fig.1) and an associated power-save client (unit 105, Fig.1). The access point buffers wireless data that includes a unicast frame and a multicast frame. A periodic scheduled beacon message is transmitted with a unicast indication element and a multicast indication element. The unicast element instructs a client to remain awake to receive a buffered unicast frame, which includes a destination MAC address. The multicast element instructs a client to remain awake following the beacon to receive a buffered multicast frame, which includes a destination multicast address designating a multicast group of which the client is a member. At least one beacon message is designated as a multicast delivery beacon. The buffered multicast frame is transmitted following the designated multicast beacon. The multicast element contains a list of entries, each entry corresponding to either a multicast MAC address, multicast IP address, or client identifier.

Abstract translation: 具有接入点（图1的单元135）和相关联的节电客户端（图1的单元105）的网络（图1的单元145）的省电方法。 接入点缓冲包括单播帧和多播帧的无线数据。 用单播指示单元和组播指示单元发送周期性调度信标消息。 单播元件指示客户端保持唤醒以接收包括目的地MAC地址的缓冲单播帧。 组播单元指示客户端在信标之后保持唤醒以接收缓冲的多播帧，其包括指定客户端是其成员的多播组的目的地多播地址。 至少一个信标消息被指定为多播递送信标。 缓冲的多播帧在指定的多播信标之后发送。 组播元素包含条目列表，每个条目对应于组播MAC地址，组播IP地址或客户端标识符。

公开(公告)号：WO2007059460A2

公开(公告)日：2007-05-24

申请号：PCT/US2006060828

申请日：2006-11-13

Applicant: CISCO TECH INC

Inventor： MEIER ROBERT C

IPC: H04L12/28

CPC classification number: H04L45/42 ,  H04L45/04 ,  H04L45/46 ,  H04L45/48 ,  H04W40/28 ,  H04W40/32

Abstract: A spanning tree cross-route protocol for establishing mesh-like cross routes in an underlying wireless spanning tree topology. A cross route spans branches of the tree topology to provide a more optimal route between any two nodes in the wireless network. The cross route can span multiple spanning trees. Each mesh node maintains a cross route table. When a packet is received, the node determines whether there is an entry for the destination node in the cross route table. If there is an entry for the destination node in the cross route table, the packet is forwarded via the cross route; otherwise, the packet is forwarded via the spanning tree.

Abstract translation: 生成树交叉路由协议，用于在底层无线生成树拓扑中建立网状交叉路由。 交叉路由跨越树形拓扑的分支以提供无线网络中任何两个节点之间的更优路由。 跨路线可以跨越多个生成树。 每个网格节点维护一个交叉路由表。 当接收到数据包时，节点确定交叉路由表中是否存在目标节点的条目。 如果交叉路由表中有目的节点的条目，则通过交叉路由转发数据包; 否则，数据包将通过生成树转发。

公开(公告)号：DE602004022853D1

公开(公告)日：2009-10-08

申请号：DE602004022853

申请日：2004-08-31

Applicant: CISCO TECH INC

Inventor： GRISWOLD VICTOR J ,  MEIER ROBERT C

IPC: H04W4/06 ,  H04J99/00 ,  H04L12/12 ,  H04L12/18 ,  H04L12/28 ,  H04L12/56 ,  H04W4/00 ,  H04W24/00 ,  H04W24/02 ,  H04W60/00 ,  H04W84/12 ,  H04W88/08

Abstract: A method for providing a superior quality of service for multicast data streams delivered over a wireless local area network. As Internet Protocol multicast data streams are received by an access point, the access point observes Internet Group Multicast Protocol registration messages to determine which of its associated stations subscribe to each multicast data stream. The access point then determines which of the multicast data streams it receives have only active subscribing stations as opposed to those data streams having at least one associated station operating in power-save mode. The access point will automatically transmit each multicast data stream having only active subscribers immediately to the associated active stations, while buffering the multicast data stream for which there is at least one associated station operating in power-save mode.

公开(公告)号：CA2565534A1

公开(公告)日：2005-12-01

申请号：CA2565534

申请日：2005-05-10

Applicant: CISCO TECH INC

Inventor： MEIER ROBERT C ,  GRISWOLD VICTOR

IPC: H04B7/14 ,  H04B1/38 ,  H04B7/185 ,  H04J3/24 ,  H04W4/06 ,  H04W52/02 ,  H04W88/08

Abstract: A power-save system for a network with an access point and an associated power-save client. The access point buffers wireless data that includes a unicast frame and a multicast frame. A periodic scheduled beacon message is transmitted with a unicast indication element and a multicast indication element. The unicast element instructs a client to remain awake to receive a buffered unicast frame, which includes a destination MAC address. The multicast element instructs a client to remain awake following the beacon to receive a buffered multicast frame, which includes a destination multicast address designating a multicast group of which the client is a member. At least one beacon message is designated as a multicast delivery beacon. The buffered multicast frame is transmitted following the designated multicast beacon. The multicast element contains a list of entries, each entry corresponding to either a multicast MAC address, multicast IP address, or client identifier.

公开(公告)号：CA2543097A1

公开(公告)日：2005-05-26

申请号：CA2543097

申请日：2004-09-16

Applicant: CISCO TECH INC

Inventor： MEIER ROBERT C ,  HALASZ DAVID E

IPC: H04H20/00 ,  H04L12/18 ,  H04L12/28 ,  H04L12/46 ,  H04L12/56 ,  H04L29/06

Abstract: A system and method for identifying and grouping multiple virtual local area networks into a single multicast domain is provided. The system and method may be configured to designate a virtual local area network within as a multicast virtual local area network to streamline the delivery of multicast messages via a network. A station may be configured with multiple group keys so that it can receive messages from multiple broadcast or multicast domains.

公开(公告)号：CA2529572C

公开(公告)日：2010-08-10

申请号：CA2529572

申请日：2004-06-18

Applicant: CISCO TECH INC

Inventor： MEIER ROBERT C ,  BILSTAD MARK

IPC: H04L12/28 ,  H04L29/08 ,  H04W52/02

Abstract: 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.

公开(公告)号：DE602004027618D1

公开(公告)日：2010-07-22

申请号：DE602004027618

申请日：2004-04-05

Applicant: CISCO TECH INC

Inventor： MEIER ROBERT C

IPC: H04L12/46 ,  H04L29/06 ,  H04L29/12

公开(公告)号：AT471012T

公开(公告)日：2010-06-15

申请号：AT04749806

申请日：2004-04-05

Applicant: CISCO TECH INC

Inventor： MEIER ROBERT C

IPC: H04L12/46 ,  H04L29/06 ,  H04L29/12

Abstract: A Mobile Ethernet Protocol that is used to logically extend a “home VLAN”, through an Ethernet/IP “campus network”, to mobile nodes on “foreign subnets”. The network architecture used for Mobile Ethernet is hierarchical and includes a Subnet Context Manager per subnet and a central Campus Context Manager. The protocol is generally based on the standard Mobile IPv4 protocol, but includes significant extensions to standard Mobile IP including using an 802 address as the permanent MN identifier, rather than an IP address, encapsulating and sending Ethernet frames through IP tunnels, and configuring a single Mobile Ethernet HA to provide access to multiple home VLANs wherein Home VLAN bindings for MNs are dynamically established. A MN does not need to be configured with a permanent IP address.