Mesh node association method in a mesh network, and mesh network supporting the same
    12.
    发明授权
    Mesh node association method in a mesh network, and mesh network supporting the same 失效
    网状节点关联方法在网状网中,网状网支持相同

    公开(公告)号:US07957737B2

    公开(公告)日:2011-06-07

    申请号:US11446350

    申请日:2006-06-02

    Applicant: In-Sun Lee

    Inventor: In-Sun Lee

    CPC classification number: H04W84/18 H04W48/08

    Abstract: A mesh network has a plurality of mesh nodes, including a moving mesh node. A serving mesh node initially associates with the moving mesh node at the request of the moving mesh node, transmits context information due to the initial association to at least one neighbor mesh node, and transmits information on the at least one neighbor mesh node to the moving mesh node. The at least one neighbor mesh node stores the context information received from the serving mesh node, and re-associates with the moving mesh node using the context information at the request of the moving mesh node.

    Abstract translation: 网状网络具有多个网状节点,包括移动网状节点。 服务网状节点最初在移动网状节点的请求下与移动网状节点相关联,由于初始关联向至少一个邻居网格节点发送上下文信息,并将关于至少一个邻居网格节点的信息发送到移动网状节点 网格节点。 所述至少一个相邻网格节点存储从所述服务网格节点接收到的上下文信息,并且在所述移动网状节点的请求下使用所述上下文信息与所述移动网格节点重新关联。

    LINK ADAPTATION SYSTEM USING DOPPLER FREQUENCY AND METHOD USING THE SAME
    14.
    发明申请
    LINK ADAPTATION SYSTEM USING DOPPLER FREQUENCY AND METHOD USING THE SAME 有权
    使用多普勒频率的链路适配系统及其使用方法

    公开(公告)号:US20090052512A1

    公开(公告)日:2009-02-26

    申请号:US12034959

    申请日:2008-02-21

    CPC classification number: H04B7/01

    Abstract: A link adaptation system using a Doppler frequency is provided. The link adaptation system includes: a Doppler frequency estimation unit to estimate a Doppler frequency of a signal transmitted via a wireless channel; a Signal to Noise Ratio (SNR) measurement interval determination unit to determine an SNR measurement interval of the signal transmitted via the wireless channel based on the estimated Doppler frequency; and an SNR measurement unit to measure an SNR of the signal based on the determined SNR measurement interval.

    Abstract translation: 提供了使用多普勒频率的链路自适应系统。 链路适配系统包括:多普勒频率估计单元,用于估计经由无线信道发送的信号的多普勒频率; 信噪比测量间隔确定单元,用于基于估计的多普勒频率确定经由无线信道发送的信号的SNR测量间隔; 以及SNR测量单元,用于基于所确定的SNR测量间隔来测量信号的SNR。

    METHOD OF CONTROLLING ANTENNA OF MOVING OBJECT AND SYSTEM USING THE SAME
    15.
    发明申请
    METHOD OF CONTROLLING ANTENNA OF MOVING OBJECT AND SYSTEM USING THE SAME 有权
    使用该方法控制移动物体的天线和系统的方法

    公开(公告)号:US20090021434A1

    公开(公告)日:2009-01-22

    申请号:US11876227

    申请日:2007-10-22

    CPC classification number: H01Q1/3208 H01Q21/00

    Abstract: A system of controlling an antenna of a moving object is provided. The system includes: a plurality of communication antennas established in the moving object; an environmental information generation unit generating environmental information which includes strength information of a received signal and moving speed information of the moving object; an antenna use determination unit determining, with respect to the plurality of communication antennas, a number of antennas for each use based on the environmental information; and an antenna assigning unit assigning the plurality of communication antennas for each use according to the determined number of antennas.

    Abstract translation: 提供一种控制移动物体的天线的系统。 该系统包括:建立在移动物体中的多个通信天线; 环境信息生成单元,生成包含接收信号的强度信息和移动体的移动速度信息的环境信息; 天线使用确定单元,基于所述环境信息,针对所述多个通信天线确定每个使用的天线数量; 以及天线分配单元,根据所确定的天线数量为每种使用分配多个通信天线。

    Method for fast roaming in a wireless network
    16.
    发明授权
    Method for fast roaming in a wireless network 有权
    在无线网络中快速漫游的方法

    公开(公告)号:US07421268B2

    公开(公告)日:2008-09-02

    申请号:US11753180

    申请日:2007-05-24

    Abstract: A roaming service method for a fast and secure wireless network is provided. In an embodiment of the present invention, an AP, which an STA associates with, transmits proactive keys needed for roaming to neighbor APs of the AP. When the STA moves to one of the neighbor APs, a reassociation is carried out between the STA and the neighbor AP using the already provided proactive key. In another embodiment of the present invention, an authentication server transmits proactive keys needed for roaming to neighbor APs to which the STA is likely to move, so that when the STA moves to one of the neighbor APs, a reassociation is carried out between the STA and the neighbor AP using the already provided proactive key.

    Abstract translation: 提供了一种用于快速和安全无线网络的漫游服务方法。 在本发明的一个实施例中,STA与其相关联的AP向AP的相邻AP发送漫游所需的主动密钥。 当STA移动到相邻AP之一时,使用已经提供的主动密钥在STA和邻居AP之间执行重新关联。 在本发明的另一个实施例中,认证服务器将漫游所需的主动密钥发送给STA可能移动到的邻居AP,使得当STA移动到相邻AP之一时,在STA之间执行重新关联 和邻居AP使用已提供的主动密钥。

    Probing method for fast handoff in WLAN
    17.
    发明授权
    Probing method for fast handoff in WLAN 失效
    WLAN中快速切换的探测方法

    公开(公告)号:US07400604B2

    公开(公告)日:2008-07-15

    申请号:US11141179

    申请日:2005-05-31

    CPC classification number: H04W36/30 H04W36/0061 H04W36/0083 H04W84/12

    Abstract: Provided is a probing method for handoff including constructing a group of neighbor access points of a current access point with which the station associated, generating subgroups of the neighbor access points by the channel assigned to the access points, probing the access points by subgroup in a subgroup selection order, and selecting the neighbor access point having best link quality as a target access point to handoff. The probing method of the present invention is implemented with a novel non-overlap graph for constructing the neighbor graph such that the probing latency is dramatically reduced, resulting in reduction of handoff delay.

    Abstract translation: 提供了一种用于切换的探测方法,包括构建当前接入点的一组邻居接入点,所述站相关联,通过分配给接入点的信道生成邻居接入点的子组,通过子接入点探测接入点 子组选择顺序,并选择具有最佳链路质量的邻居接入点作为切换的目标接入点。 本发明的探测方法是利用用于构建邻近图的新型非重叠图来实现的,使得探测等待时间大大降低,导致切换延迟减少。

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