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。

公开(公告)号：US20100272218A1

公开(公告)日：2010-10-28

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： H04W72/04 ,  H04L5/12

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。

公开(公告)号：US08165076B2

公开(公告)日：2012-04-24

申请号：US12208319

申请日：2008-09-10

申请人： Li-Chun Wang ,  Chu-Jung Yeh

发明人： Li-Chun Wang ,  Chu-Jung Yeh

IPC分类号： H04W4/00

CPC分类号： H04B7/0452 ,  H04B7/0434 ,  H04B7/068 ,  H04W72/0473 ,  H04W72/10 ,  H04W72/1252 ,  Y02D70/1262 ,  Y02D70/146 ,  Y02D70/444

摘要： The present invention is direct to the resource allocation method for MU-MIMO-OFDM system and the apparatus thereof. The MU-MIMO-OFDM system has a plurality of users and a plurality of sub-channels. The sub-channels are assigned to the users according to the capacity ratio constraints and a scheduling rule, and then the power of the user is determined according to the limit power of the MU-MIMO-OFDM system. Wherein the values of power of the sub-channels assigned to the user are the same, the scheduling rule may be Max-Min or Max Sum-Rate rule, and the allocation of the sub-channels may be user-oriented or sub-channel oriented.

摘要翻译： 本发明直接涉及用于MU-MIMO-OFDM系统的资源分配方法及其装置。 MU-MIMO-OFDM系统具有多个用户和多个子信道。 子信道根据容量比约束和调度规则分配给用户，然后根据MU-MIMO-OFDM系统的限制功率确定用户的功率。 其中分配给用户的子信道的功率值相同，调度规则可以是最大最小或最大和速率规则，并且子信道的分配可以是面向用户的或子信道 面向

公开(公告)号：US20100061312A1

公开(公告)日：2010-03-11

申请号：US12208319

申请日：2008-09-10

申请人： Li-Chun Wang ,  Chu-Jung Yeh

发明人： Li-Chun Wang ,  Chu-Jung Yeh

IPC分类号： H04W4/00

CPC分类号： H04B7/0452 ,  H04B7/0434 ,  H04B7/068 ,  H04W72/0473 ,  H04W72/10 ,  H04W72/1252 ,  Y02D70/1262 ,  Y02D70/146 ,  Y02D70/444

摘要： The present invention is direct to the resource allocation method for MU-MIMO-OFDM system and the apparatus thereof. The MU-MIMO-OFDM system has a plurality of users and a plurality of sub-channels. The sub-channels are assigned to the users according to the capacity ratio constraints and a scheduling rule, and then the power of the user is determined according to the limit power of the MU-MIMO-OFDM system. Wherein the values of power of the sub-channels assigned to the user are the same, the scheduling rule may be Max-Min or Max Sum-Rate rule, and the allocation of the sub-channels may be user-oriented or sub-channel oriented.

摘要翻译： 本发明直接涉及用于MU-MIMO-OFDM系统的资源分配方法及其装置。 MU-MIMO-OFDM系统具有多个用户和多个子信道。 子信道根据容量比约束和调度规则分配给用户，然后根据MU-MIMO-OFDM系统的限制功率确定用户的功率。 其中分配给用户的子信道的功率值相同，调度规则可以是最大最小或最大和速率规则，并且子信道的分配可以是面向用户的或子信道 面向

公开(公告)号：US20130152349A1

公开(公告)日：2013-06-20

申请号：US13328115

申请日：2011-12-16

申请人： Li-Chun Wang ,  Tseng-Hsiung Su ,  Shang-Ren Yang ,  Cheng-Long Ho ,  Han-Wen Kuo ,  Kea-Tiong Tang

发明人： Li-Chun Wang ,  Tseng-Hsiung Su ,  Shang-Ren Yang ,  Cheng-Long Ho ,  Han-Wen Kuo ,  Kea-Tiong Tang

IPC分类号： H01L21/02 ,  H01R43/20

CPC分类号： G01N27/127 ,  B82Y15/00 ,  G01N27/12 ,  Y10T29/41 ,  Y10T29/49124

摘要： There is disclosed a method for making a nano-composite gas sensor. At first, there is provided a substrate. Then, electrodes are provided on the substrate in an array. Finally, a gas-sensing membrane is provided on the electrodes. The gas-sensing membrane includes a nano-conductive film and a peptide film.

摘要翻译： 公开了一种制备纳米复合气体传感器的方法。 首先，提供了基板。 然后，将电极设置在基板上。 最后，在电极上设置气体传感膜。 气体感测膜包括纳米导电膜和肽膜。

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。

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.

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。

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。

公开(公告)号：US20120170466A1

公开(公告)日：2012-07-05

申请号：US12980355

申请日：2010-12-29

申请人： Chiao Lee ,  Li-Chun Wang ,  Jane-Hwa Huang

发明人： Chiao Lee ,  Li-Chun Wang ,  Jane-Hwa Huang

IPC分类号： H04W72/04 ,  H04W24/00

CPC分类号： H04W24/02 ,  H04W16/02 ,  H04W84/045 ,  Y02D70/1262 ,  Y02D70/146

摘要： A joint subcarrier usage ratio and power allocation method, the system and base station, and a controller using the same are proposed. The method is adapted for a femtocell base station using OFDMA technology to jointly select transmission power and subcarrier usage ratio. The method includes a first adjustment process, which simultaneously, dynamically and jointly adjusts the transmission power and the subcarrier usage ratio so as to quickly satisfy capacity requirement and link reliability requirement. The method also includes a second adjustment process for slowly adjusting the transmission power and the subcarrier usage ratio after the capacity requirement and the link reliability requirement are both met in the first adjustment process for stability duration. The second adjustment process helps the femtocell base station achieve maximal power efficiency. An outer-loop control might be used in the method to relax the capacity requirement of one femtocell for quickly achieving a stable situation.

摘要翻译： 提出了联合子载波使用率和功率分配方法，系统和基站以及使用该方法的控制器。 该方法适用于使用OFDMA技术的毫微微小区基站来共同选择发射功率和子载波使用率。 该方法包括第一调整过程，其同时动态地和共同地调整发射功率和子载波使用率，以便快速满足容量要求和链路可靠性要求。 该方法还包括用于在稳定持续时间的第一调整处理中满足容量要求和链路可靠性要求之后缓慢调整发送功率和子载波使用率的第二调整过程。 第二调整过程有助于毫微微小区基站实现最大功率效率。 在该方法中可以使用外环控制来放松一个毫微微小区的容量需求以快速实现稳定的情况。