-
公开(公告)号：CA2583111A1
公开(公告)日：2006-04-13
申请号：CA2583111
申请日：2005-08-23
Applicant: CISCO TECH INC
Inventor： DOUGLAS BRETTON LEE , HART BRIAN , PERAHIA ELDAD , LYONS DANIEL JOSEPH
IPC: H04B17/00
Abstract: A method and an apparatus in a first wireless station of a network transmitting to a second wireless station. The network uses multi-tone OFDM signals. The first station includes multiple antennas and a receive and a transmit signal path per antenna. Each receive signal path includes a discrete Fourier transformer determining the tones in a received signal, and each transmit signal path includes an inverse discrete Fourier transformer converting tones to a signal. The method includes determining channel estimates for each tone and each receive path while receiving from the second station, determining transmit weights to transmit to the second station, tone-by-tone weighting a signal for transmission to the second station to produce weighted tone sets for each transmit signal path, and transmitting the weighted tone sets. The first station is configured so that the weighting produces additive beamforming without the second station needing multiple antennas.
-
公开(公告)号：AT507691T
公开(公告)日：2011-05-15
申请号：AT08846010
申请日：2008-10-15
Applicant: CISCO TECH INC
Inventor： GONG XIAOHONG , STEPHENSON DAVID SHELDON , KRUYS JOHANNES P , DOUGLAS BRETTON LEE
IPC: H04W16/10
Abstract: In an example embodiment, a method for determining backhaul channel assignments for multi-channel dual radio mesh nodes. The method comprises acquiring collision domain data for each access point of an associated mesh network. A cost function is calculated for each access point of the associated mesh network, the cost function assigning a weighted value for each access point in a collision domain based on a number of access points in the collision domain. Backhaul channel assignments for selected for each access point that minimizes the cost function.
-
公开(公告)号：DE602006011181D1
公开(公告)日：2010-01-28
申请号：DE602006011181
申请日：2006-08-07
Applicant: CISCO TECH INC
Inventor： HART BRIAN D , DOUGLAS BRETTON LEE , QIAN LU
IPC: H04W16/18
Abstract: Described herein are a computer-implemented method of determining a power plan/frequency plan combination assigning transmit frequency channels and transmit powers for a plurality of managed access points (APs) of a wireless network. Also described herein is a carrier medium carrying computer readable code configured to cause one or more processors of a processing system to implement the computer implemented method of determining a power plan/frequency plan combination. The method includes determining candidate power plans for the access points, including determining candidate transmit powers for the access points, determining a candidate frequency plan corresponding to each of the determined candidate power plans using a frequency plan determining method to determine a set of candidate power plan/frequency plan combinations, and rating each combination of a candidate power plan and candidate frequency plan according to an evaluation criterion, and selecting a preliminary power plan/frequency plan combination based on the rating. One embodiment of the method further includes determining a final power plan for the preliminary frequency plan of the preliminary power plan/frequency plan combination to obtain a final power plan/frequency plan combination.
-
公开(公告)号：AU2004306654B2
公开(公告)日：2009-07-30
申请号：AU2004306654
申请日：2004-07-08
Applicant: CISCO TECH INC
Inventor： DOUGLAS BRETTON LEE , PERAHIA ELDAD
Abstract: A method including wirelessly receiving a packet at a wireless station belonging to a cell of a wireless network, the network for communicating according to a wireless network standard, each transmitting station of the cell able to transmit a packet that includes cell identification information; and ascertaining at the physical layer level whether or not the received packet is from another station of the cell by ascertaining whether or not the received packet includes the cell identification information of the cell.
-
5.发明申请TAG LOCATION, CLIENT LOCATION, AND COVERAGE HOLE LOCATION IN A WIRELESS NETWORK 审中-公开标签位置，客户位置和覆盖在无线网络中的位置
公开(公告)号：WO2006083466A2
公开(公告)日：2006-08-10
申请号：PCT/US2006000078
申请日：2006-01-03
Applicant: CISCO TECH INC , DOUGLAS BRETTON LEE , OLSON TIMOTHY S , HALASZ DAVID E , DENG JOHN Z , BILSTAD ARNOLD M , YANG SHEAUSONG , REBO RICHARD D , LEARY JONATHAN S , KAISER DARYL A
Inventor： DOUGLAS BRETTON LEE , OLSON TIMOTHY S , HALASZ DAVID E , DENG JOHN Z , BILSTAD ARNOLD M , YANG SHEAUSONG , REBO RICHARD D , LEARY JONATHAN S , KAISER DARYL A
CPC classification number: H04W64/00 , G01S5/0252 , H04W48/08 , H04W48/16 , H04W80/00
Abstract: Determining the location of a radio tag or client station of a wireless network, and the location of coverage holes by receiving from a plurality of wireless stations of the wireless network path loss information of the path loss of one or more location frames received at the respective wireless stations. The location frames transmitted by the radio tag or client station having a pre-defined frame structure. The radio tags and client stations use a common infrastructure for transmitting a location frame configured for radiolocation by path loss measurement. The common infrastructure includes a pre defined protocol common for both radio tags and client stations for transmitting information for reception by the plurality of stations of the wireless network for radiolocation. The pre-defined protocol includes using the location frame having the predefined frame structure.
Abstract translation: 确定无线网络的无线电标签或客户站的位置，以及通过从多个无线站接收无线网络路径损失信息来确定无线网络的无线电标签或客户站的位置，以及在各个无线站点处接收到的一个或多个位置帧的路径损耗 无线电台。 由具有预定义帧结构的无线电标签或客户站发送的位置帧。 无线电标签和客户端站使用通用基础设施来发送通过路径损耗测量配置无线电定位的位置帧。 公共基础设施包括用于无线电标签和客户端站共用的预定义协议，用于发送用于由用于无线电定位的无线网络的多个站点接收的信息。 预定义的协议包括使用具有预定义帧结构的位置帧。
-
Patent Agency Ranking
公开(公告)号：CA2536494C
公开(公告)日：2017-01-31
申请号：CA2536494
申请日：2004-07-08
Applicant: CISCO TECH INC
Inventor： DOUGLAS BRETTON LEE , PERAHIA ELDAD
Abstract: A method including wirelessly receiving a packet at a wireless station belonging to a cell (Fig. 2A) of a wireless network, the network for communicating according to a wireless network standard, each transmitting station of the cell able to transmit a packet that includes cell identification information; and ascertaining at the physical layer level whether or not the received packet is from another station of the cell by ascertaining whether or not the received packet includes the cell identification information of the cell.
-
公开(公告)号：DE602008006593D1
公开(公告)日：2011-06-09
申请号：DE602008006593
申请日：2008-10-15
Applicant: CISCO TECH INC
Inventor： GONG XIAOHONG , STEPHENSON DAVID SHELDON , KRUYS JOHANNES P , DOUGLAS BRETTON LEE
IPC: H04W16/10
-
公开(公告)号：WO2008016799A3
公开(公告)日：2008-11-13
申请号：PCT/US2007074127
申请日：2007-07-23
Applicant: CISCO TECH INC
Inventor： STEPHENSON DAVID SHELDON , OLSON TIMOTHY S , DOUGLAS BRETTON LEE
Abstract: Methods, apparatuses and systems directed to identifying coverage holes in wireless networks. According to implementation of the present invention, the wireless network infrastructure analyzes signal strength data to detect potential coverage holes associated with one or more wireless clients (604) and validates (616) the potential coverage holes based on observed coverage data.
Abstract translation: 用于识别无线网络覆盖漏洞的方法，设备和系统。 根据本发明的实现，无线网络基础设施分析信号强度数据以检测与一个或多个无线客户端（604）相关联的潜在覆盖空间，并基于观察到的覆盖数据验证（616）潜在覆盖空洞。
-
公开(公告)号：WO2008042569A2
公开(公告)日：2008-04-10
申请号：PCT/US2007078310
申请日：2007-09-12
Applicant: CISCO TECH INC , THUBERT PASCAL , WETTERWALD PATRICK , RIBIERE VINCENT JEAN , DOUGLAS BRETTON LEE , KRUYS JOHANNES PETRUS
Inventor： THUBERT PASCAL , WETTERWALD PATRICK , RIBIERE VINCENT JEAN , DOUGLAS BRETTON LEE , KRUYS JOHANNES PETRUS
CPC classification number: H04W76/022 , H04W28/20 , H04W76/027 , H04W84/18
Abstract: One embodiment includes tracking utilization of the backhaul wireless bandwidth of a mesh network related to time sensitive packet data, receiving a call admission request for a call from a client station of a first mesh access point of the mesh, ascertaining using the tracked utilization whether to approve the call admission request using a backhaul call admission control method, and approving the call by sending a positive call admission response if the backhaul call admission control method approves the call and if an access level call admission control method ascertains to approve the call admission request at the access level.
Abstract translation: 一个实施例包括跟踪与时间敏感分组数据相关的网状网络的回程无线带宽的利用，从网状网络的第一网状接入点的客户站接收针对呼叫的呼叫允许请求，使用跟踪的利用来确定是否 使用回程呼叫许可控制方法批准呼叫许可请求，并且如果回程呼叫许可控制方法批准呼叫，并且如果访问等级呼叫许可控制方法确定批准呼叫许可请求，则通过发送肯定呼叫许可响应来批准呼叫 在访问级别。
-
公开(公告)号：WO2008042641A3
公开(公告)日：2009-05-22
申请号：PCT/US2007079354
申请日：2007-09-25
Applicant: CISCO TECH INC
Inventor： HART BRIAN DONALD , DOUGLAS BRETTON LEE
IPC: G01S3/02
Abstract: In one embodiment, a method includes computing a probability surface corresponding to the location probability of the wireless node within a physical region based on the received signal strength data associated with a wireless node and an RF model of the physical region; computing, based on the probability surface, an aggregate probability (Pin) of the wireless node being inside a perimeter defined with the physical region! computing, based on the probability surface, an aggregate probability (Pout) of the wireless node being outside the perimeter; computing a probability ratio of the aggregate probabilities Pin to Pout; and determining whether the wireless node is inside or outside the perimeter based on a comparison of Pout and Pin.
Abstract translation: 在一个实施例中，一种方法包括基于与无线节点相关联的接收信号强度数据和物理区域的RF模型来计算与物理区域内的无线节点的位置概率相对应的概率表面; 基于概率表面计算无线节点在由物理区域定义的周界内的聚合概率（Pin）！ 基于概率表面计算无线节点在外围之外的聚合概率（Pout）; 计算总概率Pin与Pout的概率比; 以及基于Pout和Pin的比较来确定无线节点是在内部还是外部。
-
-
-
-
-
-
-
-
-
Search Results
16
records
(took 0.024 seconds)
