利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

35 条记录 (耗时 0.022 秒)

    METHOD AND DEVICE FOR COST-FUNCTION BASED HANDOFF DETERMINATION USING WAVELET PREDICTION IN VERTICAL NETWORKS
    1.
    发明申请
    METHOD AND DEVICE FOR COST-FUNCTION BASED HANDOFF DETERMINATION USING WAVELET PREDICTION IN VERTICAL NETWORKS 审中-公开
    使用垂直网络中的波段预测的基于成本函数的手动确定方法和装置

    公开(公告)号：US20070160007A1

    公开(公告)日：2007-07-12

    申请号：US11306798

    申请日：2006-01-11

    申请人： Li-Chun Wang ,  Ming-Bing Chen ,  Chang-Feng Lee

    发明人： Li-Chun Wang ,  Ming-Bing Chen ,  Chang-Feng Lee

    IPC分类号： H04Q7/00

    CPC分类号： H04W36/00837 ,  H04W36/14

    摘要： A method for performing a network handoff between different network communication providers for a wireless endpoint includes: calculating a first cost value for a first network detected by the wireless endpoint according to a first cost function calculation, calculating a second cost value for a second network detected by the wireless endpoint according to a second cost function calculation, utilizing a cost function based wavelet predictor to determine a network handoff time according to at least one of the first and second cost functions, and executing the network handoff between the first network and the second network at the network handoff time, wherein the cost function based wavelet predictor is for predicting future trends of various network characteristics.

    摘要翻译： 一种用于在无线终端的不同网络通信提供者之间执行网络切换的方法包括：根据第一成本函数计算计算由无线终端检测到的第一网络的第一成本值，计算检测到的第二网络的第二成本值 通过所述无线终端根据第二成本函数计算，利用基于成本函数的小波预测器根据所述第一和第二成本函数中的至少一个来确定网络切换时间，以及执行所述第一网络与所述第二网络之间的网络切换 网络切换时间，其中基于成本函数的小波预测器用于预测各种网络特性的未来趋势。

    Method for performing a network handoff in a wireless network environment
    2.
    发明申请
    Method for performing a network handoff in a wireless network environment 失效
    在无线网络环境中执行网络切换的方法

    公开(公告)号：US20070189216A1

    公开(公告)日：2007-08-16

    申请号：US11307613

    申请日：2006-02-14

    申请人： Li-Chun Wang ,  Hung-Hsi Chen ,  Ming-Bing Chen ,  Chang-Feng Lee

    发明人： Li-Chun Wang ,  Hung-Hsi Chen ,  Ming-Bing Chen ,  Chang-Feng Lee

    IPC分类号： H04Q7/00

    CPC分类号： H04W36/12

    摘要： A method for performing an efficient handoff of a wireless endpoint to an access point in a wireless network environment includes measuring a number of stations utilizing the access point, selecting a broadcast count of the wireless endpoint according to the number of stations, selecting a retry count of the access point according to the number of stations, and performing the handoff of the wireless endpoint to the access point utilizing the selected broadcast count and retry count. The broadcast count corresponding to a number of probe request frames sent by the wireless endpoint to initiate the handoff of the wireless endpoint, and the retry count corresponding to a number of probe response frames sent by the access point to acknowledge receipt of the probe request frames.

    摘要翻译： 用于在无线网络环境中执行无线端点到接入点的有效切换的方法包括：使用接入点测量多个站，根据站数选择无线端点的广播计数，选择​​重试计数 的接入点，并且使用所选择的广播计数和重试计数来执行无线端点到接入点的切换。 对应于由无线端点发送以发起无线端点的切换的探测请求帧的数量的广播计数，以及对应于由接入点发送的用于确认接收探测请求帧的探测响应帧数的重试次数 。

    Method for performing a network handoff in a wireless network environment
    3.
    发明授权
    Method for performing a network handoff in a wireless network environment 失效
    在无线网络环境中执行网络切换的方法

    公开(公告)号：US07499431B2

    公开(公告)日：2009-03-03

    申请号：US11307613

    申请日：2006-02-14

    申请人： Li-Chun Wang ,  Hung-Hsi Chen ,  Ming-Bing Chen ,  Chang-Feng Lee

    发明人： Li-Chun Wang ,  Hung-Hsi Chen ,  Ming-Bing Chen ,  Chang-Feng Lee

    IPC分类号： H04Q7/00

    CPC分类号： H04W36/12

    摘要： A method for performing an efficient handoff of a wireless endpoint to an access point in a wireless network environment includes measuring a number of stations utilizing the access point, selecting a broadcast count of the wireless endpoint according to the number of stations, selecting a retry count of the access point according to the number of stations, and performing the handoff of the wireless endpoint to the access point utilizing the selected broadcast count and retry count. The broadcast count corresponding to a number of probe request frames sent by the wireless endpoint to initiate the handoff of the wireless endpoint, and the retry count corresponding to a number of probe response frames sent by the access point to acknowledge receipt of the probe request frames.

    摘要翻译： 用于在无线网络环境中执行无线端点到接入点的有效切换的方法包括：使用接入点测量多个站，根据站数选择无线端点的广播计数，选择​​重试计数 的接入点，并且使用所选择的广播计数和重试计数来执行无线端点到接入点的切换。 对应于由无线端点发送以发起无线端点的切换的探测请求帧的数量的广播计数，以及对应于由接入点发送的用于确认接收探测请求帧的探测响应帧数的重试次数 。

    Method and apparatus for a high-capacity cellular network by improved sectorization and interleaved channel assignment
    7.
    发明授权
    Method and apparatus for a high-capacity cellular network by improved sectorization and interleaved channel assignment 失效

    公开(公告)号：US06580912B2

    公开(公告)日：2003-06-17

    申请号：US09948816

    申请日：2001-09-10

    申请人： Kin K. Leung ,  Li-Chun Wang

    发明人： Kin K. Leung ,  Li-Chun Wang

    IPC分类号： H04Q736

    CPC分类号： H04W16/12 ,  H04W16/02 ,  H04W16/24 ,  H04W28/16

    摘要： A method and apparatus for a high-capacity cellular network by improved sectorization and interleaved channel assignment is presented. Data transmission over a cellular network is carried out by implementation of a sectorization scheme, called the Narrow-Beam Quad-sector Cell (NBQC) sectorization scheme, and the corresponding Interleaved Channel Assignments (ICA). The NBQC sectorization scheme calls for each cell of a cellular network to be divided into four sectors, with each sector covered by a 60 degree antenna. Use of the NBQC sectorization scheme allows for implementation of the corresponding ICA, in which assignment of transmission channels to each cell is based on a re-use factor of N=2. Accordingly, the interleaved channel assignments allow for the use of the transmission channels in cells which are adjacent in the cellular network.

    Method and apparatus for communications resource allocation for a wireless communications system
    8.
    发明授权
    Method and apparatus for communications resource allocation for a wireless communications system 有权
    用于无线通信系统的通信资源分配的方法和装置

    公开(公告)号：US06339708B1

    公开(公告)日：2002-01-15

    申请号：US09166219

    申请日：1998-10-05

    申请人： Li-Chun Wang

    发明人： Li-Chun Wang

    IPC分类号： H04Q720

    CPC分类号： H04W16/12 ,  H04W16/02 ,  H04W16/24 ,  H04W16/30 ,  H04W72/0453 ,  H04W84/042 ,  H04W88/08

    摘要： A method and apparatus for communications resource allocation in a wireless communications system having a total system bandwidth. A service area is divided into a plurality sectors. A first set of base station antennas are positioned within a first set of sectors. The first set of antennas have main beams set at a first set of angles, and each antenna corresponds to a sector within the first set of sectors. A second set of base station antennas are positioned within a second set of sectors adjacent to the first set of sectors. The second set of antennas have main beams set at a second set of angles, and each antenna corresponds to a sector within the second set of sectors. Each sector is assigned a portion of the total system bandwidth.

    摘要翻译： 一种具有总系统带宽的无线通信系统中用于通信资源分配的方法和装置。 服务区域被分成多个扇区。 第一组基站天线位于第一组扇区内。 第一组天线具有以第一组角度设置的主波束，并且每个天线对应于第一组扇区内的扇区。 第二组基站天线位于与第一组扇区相邻的第二组扇区内。 第二组天线具有设置在第二组角度的主波束，并且每个天线对应于第二组扇区内的扇区。 每个扇区都被分配为系统总带宽的一部分。

    Method and apparatus for coordinated MIMO signal transmission among multiple cells in wireless OFDM systems
    9.
    发明授权
    Method and apparatus for coordinated MIMO signal transmission among multiple cells in wireless OFDM systems 有权
    用于无线OFDM系统中多个小区之间协调MIMO信号传输的方法和装置

    公开(公告)号：US08744014B2

    公开(公告)日：2014-06-03

    申请号：US12766330

    申请日：2010-04-23

    申请人： Chu-Jung Yeh ,  Li-Chun Wang ,  I-Kang Fu

    发明人： Chu-Jung Yeh ,  Li-Chun Wang ,  I-Kang Fu

    IPC分类号： H04L27/22

    CPC分类号： H04L5/0023 ,  H04B7/024 ,  H04L5/0032 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/006 ,  H04L5/0075 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/03866

    摘要： A FFR (fractional frequency reuse)-based network MIMO (multiple-input multiple-output) transmission architecture in a cellular system that employs cell sectoring using directional antennas. Each cell is sectorized into three outer sectors using three directional antennas which transmit in three different directions using three different frequency subbands. The cell sectors are arranged based on a frequency partition scheme so that three sectors in three neighboring cells form a coordinated group for network MIMO transmission. A regular and a rearranged frequency partition are described. Further, a practical implementation of SON (self organizing network)-based three-cell FFR-based network MIMO for a wireless OFDM system is described. In this implementation, a server connected to multiple base stations (BSs) defines multiple coordinated groups for coordinated MIMO transmission, and the BSs within each coordinated group negotiate a common radio resource region (a composite time-frequency region), and selects a serving mobile station to participate in the coordinated MIMO transmission.

    摘要翻译： 在采用使用定向天线的小区扇区的蜂窝系统中的基于FFR（分数频率重用）的网络MIMO（多输入多输出）传输架构。 使用三个定向天线将每个小区分成三个外部扇区，三个定向天线使用三个不同的频率子带在三个不同的方向上发射。 基于频率分配方案来布置小区扇区，使得三个相邻小区中的三个扇区形成用于网络MIMO传输的协调组。 描述了常规和重新排列的频率分区。 此外，描述了用于无线OFDM系统的基于SON（自组织网络）的基于三小区FFR的网络MIMO的实际实现。 在该实现中，连接到多个基站（BS）的服务器定义用于协调MIMO传输的多个协调组，并且每个协调组内的BS协商公共无线电资源区域（复合时间 - 频率区域），并且选择服务移动 站参与协调MIMO传输。

    Method for making a conductive polymer composite for detecting a sort of gas
    10.
    发明授权
    Method for making a conductive polymer composite for detecting a sort of gas 有权
    制造用于检测一种气体的导电聚合物复合材料的方法

    公开(公告)号：US08551571B2

    公开(公告)日：2013-10-08

    申请号：US13293237

    申请日：2011-11-10

    申请人： Li-Chun Wang ,  Yuh Sung ,  Shiaw-Ruey Lin ,  Cheng-Long Ho ,  Chang-Ping Chang ,  Chen-Yu Lin

    发明人： Li-Chun Wang ,  Yuh Sung ,  Shiaw-Ruey Lin ,  Cheng-Long Ho ,  Chang-Ping Chang ,  Chen-Yu Lin

    IPC分类号： B05D5/12 ,  B05D1/38

    CPC分类号： G01N27/126 ,  B82Y15/00 ,  B82Y30/00

    摘要： A method for making a conductive polymer composite for detecting a gas includes forming a porous conductive layer of a conductive powder on a substrate, applying a polymer solution containing a solvent and a gas responsive polymer material dissolved in the solvent to the porous conductive layer such that a portion of the polymer solution penetrates into the porous conductive layer and the remainder of the polymer solution forms a thin film covering a top of the porous conductive layer, the gas responsive polymer material being capable of adsorbing and desorbing the gas, and removing the solvent from the polymer solution so as to form a polymer matrix covering the porous conductive layer.

    摘要翻译： 制造用于检测气体的导电聚合物复合材料的方法包括在基板上形成导电粉末的多孔导电层，将溶解在溶剂中的溶剂和气体响应性聚合物材料的聚合物溶液施加到多孔导电层，使得 聚合物溶液的一部分渗透到多孔导电层中，其余的聚合物溶液形成覆盖多孔导电层顶部的薄膜，气体响应性聚合物材料能够吸附和解吸气体，并除去溶剂 从聚合物溶液中形成覆盖多孔导电层的聚合物基体。