公开(公告)号：US08442008B2

公开(公告)日：2013-05-14

申请号：US12957630

申请日：2010-12-01

Applicant: Pan Hsiang Lo ,  Shiao-Li Tsao

Inventor： Pan Hsiang Lo ,  Shiao-Li Tsao

IPC: H04W4/00

CPC classification number: H04W36/18 ,  H04W36/0055

Abstract: Methods performed by a mobile node (MN) in a secured network for handoff of communication from a serving access point (AP) to a target AP are provided. In a bounded delay channel switching (BDCS) method, the MN periodically switches between a first channel and one of multiple other channels during handoff, utilizes the first channel to transmit/receive packets to/from a corresponding node (CN) via the serving AP and utilizes one of the other channels to perform the handoff procedure to the target AP. In a dual-MAC switching (DMS) method, the MN employs a first MAC (medium access control) address to transmit/receive packets to/from the serving AP and a second MAC address to perform the handoff procedure to the target AP. The BDCS and DMS methods may be used concurrently, and may be used in a secured network that complies with, e.g., the IEEE 802.11, IEEE 802.1x or IEEE 802.11i plus IEEE 802.11f standards.

Abstract translation: 提供由安全网络中的移动节点（MN）执行的用于从服务接入点（AP）到目标AP的通信切换的方法。 在有界延迟信道切换（BDCS）方法中，MN在切换期间周期性地在第一信道与多个其他信道中的一个信道上进行切换，利用第一信道经由服务AP向对应节点（CN）发送/接收分组 并且利用其他信道中的一个向目标AP执行切换过程。 在双MAC交换（DMS）方法中，MN采用第一MAC（介质访问控制）地址向/从服务AP发送/接收分组，以及第二MAC地址来执行到目标AP的切换过程。 BDCS和DMS方法可以同时使用，并且可以在符合例如IEEE 802.11，IEEE 802.1x或IEEE 802.11i加上IEEE 802.11f标准的安全网络中使用。

公开(公告)号：US20110069677A1

公开(公告)日：2011-03-24

申请号：US12957630

申请日：2010-12-01

Applicant: Pan Hsiang Lo ,  Shiao-Li Tsao

Inventor： Pan Hsiang Lo ,  Shiao-Li Tsao

IPC: H04W4/00

CPC classification number: H04W36/18 ,  H04W36/0055

Abstract: Methods performed by a mobile node (MN) in a secured network for handoff of communication from a serving access point (AP) to a target AP are provided. In a bounded delay channel switching (BDCS) method, the MN periodically switches between a first channel and one of multiple other channels during handoff, utilizes the first channel to transmit/receive packets to/from a corresponding node (CN) via the serving AP and utilizes one of the other channels to perform the handoff procedure to the target AP. In a dual-MAC switching (DMS) method, the MN employs a first MAC (medium access control) address to transmit/receive packets to/from the serving AP and a second MAC address to perform the handoff procedure to the target AP. The BDCS and DMS methods may be used concurrently, and may be used in a secured network that complies with, e.g., the IEEE 802.11, IEEE 802.1x or IEEE 802.11i plus IEEE 802.11f standards.

Abstract translation: 提供由安全网络中的移动节点（MN）执行的用于从服务接入点（AP）到目标AP的通信切换的方法。 在有界延迟信道切换（BDCS）方法中，MN在切换期间周期性地在第一信道与多个其他信道中的一个信道上进行切换，利用第一信道经由服务AP向对应节点（CN）发送/接收分组 并且利用其他信道中的一个向目标AP执行切换过程。 在双MAC交换（DMS）方法中，MN采用第一MAC（介质访问控制）地址向/从服务AP发送/接收分组，以及第二MAC地址来执行到目标AP的切换过程。 BDCS和DMS方法可以同时使用，并且可以在符合例如IEEE 802.11，IEEE 802.1x或IEEE 802.11i加上IEEE 802.11f标准的安全网络中使用。

公开(公告)号：US07864732B2

公开(公告)日：2011-01-04

申请号：US11616448

申请日：2006-12-27

Applicant: Pang Hsiang Lo ,  Shiao-Li Tsao

Inventor： Pang Hsiang Lo ,  Shiao-Li Tsao

IPC: H04W4/00

CPC classification number: H04W36/18 ,  H04W36/0055

Abstract: Methods performed by a mobile node (MN) in a secured network for handoff of communication from a serving access point (AP) to a target AP are provided. In a bounded delay channel switching (BDCS) method, the MN periodically switches between a first channel and one of multiple other channels during handoff, utilizes the first channel to transmit/receive packets to/from a corresponding node (CN) via the serving AP and utilizes one of the other channels to perform the handoff procedure to the target AP. In a dual-MAC switching (DMS) method, the MN employs a first MAC (medium access control) address to transmit/receive packets to/from the serving AP and a second MAC address to perform the handoff procedure to the target AP.

Abstract translation: 提供由安全网络中的移动节点（MN）执行的用于从服务接入点（AP）到目标AP的通信切换的方法。 在有界延迟信道切换（BDCS）方法中，MN在切换期间周期性地在第一信道与多个其他信道中的一个信道上进行切换，利用第一信道经由服务AP向对应节点（CN）发送/接收分组 并且利用其他信道中的一个向目标AP执行切换过程。 在双MAC交换（DMS）方法中，MN采用第一MAC（介质访问控制）地址向/从服务AP发送/接收分组，以及第二MAC地址来执行到目标AP的切换过程。

公开(公告)号：US07783770B2

公开(公告)日：2010-08-24

申请号：US11308166

申请日：2006-03-09

Applicant: Tzu-Ming Lin ,  Shiao-Li Tsao ,  Chung-Huei Huang ,  Wen-Tsuen Chen ,  Jhe-Ming Hsu

Inventor： Tzu-Ming Lin ,  Shiao-Li Tsao ,  Chung-Huei Huang ,  Wen-Tsuen Chen ,  Jhe-Ming Hsu

IPC: G06F15/16 ,  G06F15/173 ,  H04B7/00 ,  H04B1/38 ,  H04B7/14 ,  G08C17/00

CPC classification number: H04L1/1825 ,  H04L1/1607

Abstract: A packet transmitting method of wireless network is provided. The packet transmitting method determines whether the packet to be transmitted is a real-time packet or not, and, when the packet is a real-time packet, a re-transmission mechanism of the packet is determined to be ON or OFF according to the transmission status of the wireless network itself.

Abstract translation: 提供了一种无线网络的分组发送方法。 分组发送方法确定要发送的分组是否是实时分组，并且当分组是实时分组时，根据分组的分组确定分组的重传机制为ON或OFF 无线网络本身的传输状态。

公开(公告)号：US20090186619A1

公开(公告)日：2009-07-23

申请号：US12353611

申请日：2009-01-14

Applicant: Tai-Xing YU ,  Ting-Kai Hung ,  Hung-Chi Hsu ,  Shiao-Li Tsao

Inventor： Tai-Xing YU ,  Ting-Kai Hung ,  Hung-Chi Hsu ,  Shiao-Li Tsao

IPC: H04W40/00

CPC classification number: H04W52/0216 ,  H04W76/10 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/23

Abstract: A system and method for reducing call establishment delay in wireless network is provided, in which a network node establishes a call to a wireless terminal controlled by an AP via a sever. The wireless terminal notifies the server of its listen interval. In the power saving mode, the wireless terminal wakes up every listen interval and listen the beacon to check whether any buffered packet for it. When the wireless terminal learns from the beacon that there are packets waiting, it communicates with the access point to retrieve them. The server records a listen time at which the wireless terminal will wake tip and listen to the AP based on the listen interval. When a network node calls the wireless terminal, the server buffers the request for a time interval based on the listen time, and then sends the request to the wireless terminal.

Abstract translation: 提供一种用于减少无线网络中的呼叫建立延迟的系统和方法，其中网络节点通过服务器建立对由AP控制的无线终端的呼叫。 无线终端通知服务器其监听间隔。 在省电模式下，无线终端唤醒每个监听间隔，并监听信标，检查是否有缓冲的数据包。 当无线终端从信标中学到有数据包等待时，它与接入点进行通信以检索它们。 服务器记录无线终端根据监听间隔唤醒提示并收听AP的监听时间。 当网络节点呼叫无线终端时，服务器根据监听时间缓存一段时间间隔的请求，然后将该请求发送给无线终端。

公开(公告)号：US20080085723A1

公开(公告)日：2008-04-10

申请号：US11613202

申请日：2006-12-20

Applicant: Shiao-Li Tsao ,  Chih-Chien Hsu ,  Tai-Xing Yu

Inventor： Shiao-Li Tsao ,  Chih-Chien Hsu ,  Tai-Xing Yu

IPC: H04Q7/20

CPC classification number: H04W16/08 ,  H04W84/12

Abstract: Disclosed is a load balancing apparatus and method in wireless network hotspots, which comprises a resource allocation module and a load balancer. The resources reallocation module establishes the resources module and the relationship between access points (APs) and STAs in the wireless network hotspots, and seeks possible load balance shift paths (LBSPs). From these possible LBSPs, an LBSP is selected. Based on the selected LBSP, the load balancer reallocates network resources and dynamically arranges the load among the APs in the wireless network hotspots. This invention can be applicable to a centralized or a decentralized wireless communication system.

Abstract translation: 公开了无线网络热点中的负载平衡装置和方法，其包括资源分配模块和负载均衡器。 资源重新分配模块建立无线网络热点的资源模块和接入点（AP）和STA之间的关系，并寻求可能的负载平衡转移路径（LBSP）。 从这些可能的LBSP中，选择LBSP。 基于选定的LBSP，负载均衡器重新分配网络资源，动态安排无线网络热点AP间的负载。 本发明可以应用于集中式或分散式无线通信系统。

公开(公告)号：US20070177549A1

公开(公告)日：2007-08-02

申请号：US11616448

申请日：2006-12-27

Applicant: Pang Hsiang Lo ,  Shiao-Li Tsao

Inventor： Pang Hsiang Lo ,  Shiao-Li Tsao

IPC: H04Q7/00

CPC classification number: H04W36/18 ,  H04W36/0055

Abstract: Methods performed by a mobile node (MN) in a secured network for handoff of communication from a serving access point (AP) to a target AP are provided. In a bounded delay channel switching (BDCS) method, the MN periodically switches between a first channel and one of multiple other channels during handoff, utilizes the first channel to transmit/receive packets to/from a corresponding node (CN) via the serving AP and utilizes one of the other channels to perform the handoff procedure to the target AP. In a dual-MAC switching (DMS) method, the MN employs a first MAC (medium access control) address to transmit/receive packets to/from the serving AP and a second MAC address to perform the handoff procedure to the target AP. The BDCS and DMS methods may be used concurrently, and may be used in a secured network that complies with, e.g., the IEEE 802.11, IEEE 802.1x or IEEE 802.11i plus IEEE 802.11f standards.

Abstract translation: 提供由安全网络中的移动节点（MN）执行的用于从服务接入点（AP）到目标AP的通信切换的方法。 在有界延迟信道切换（BDCS）方法中，MN在切换期间周期性地在第一信道与多个其他信道中的一个信道上进行切换，利用第一信道经由服务AP向对应节点（CN）发送/接收分组 并且利用其他信道中的一个向目标AP执行切换过程。 在双MAC交换（DMS）方法中，MN采用第一MAC（介质访问控制）地址向/从服务AP发送/接收分组，以及第二MAC地址来执行到目标AP的切换过程。 BDCS和DMS方法可以同时使用，并且可以在符合例如IEEE 802.11，IEEE 802.1x或IEEE 802.11i加上IEEE 802.11f标准的安全网络中使用。

公开(公告)号：US20070021155A1

公开(公告)日：2007-01-25

申请号：US11283877

申请日：2005-11-22

Applicant: Tai-Xing Yu ,  Ting-Kai Hung ,  Hung-Chi Hsu ,  Shiao-Li Tsao

Inventor： Tai-Xing Yu ,  Ting-Kai Hung ,  Hung-Chi Hsu ,  Shiao-Li Tsao

IPC: H04B1/38

CPC classification number: H04W52/0216 ,  H04W76/10 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/23

Abstract: A system and method for reducing call establishment delay in wireless network is provided, in which a network node establishes a call to a wireless terminal controlled by an AP via a server. The wireless terminal notifies the server of its listen interval. In the power saving mode, the wireless terminal wakes up every listen interval and listen the beacon to check whether any buffered packet for it. When the wireless terminal learns from the beacon that there are packets waiting, it communicates with the access point to retrieve them. The server records a listen time at which the wireless terminal will wake up and listen to the AP based on the listen interval. When a network node calls the wireless terminal, the server buffers the request for a time interval based on the listen time, and then sends the request to the wireless terminal.

Abstract translation: 提供一种用于减少无线网络中的呼叫建立延迟的系统和方法，其中网络节点通过服务器建立对由AP控制的无线终端的呼叫。 无线终端通知服务器其监听间隔。 在省电模式下，无线终端唤醒每个监听间隔，并监听信标，检查是否有缓冲的数据包。 当无线终端从信标中学到有数据包等待时，它与接入点进行通信以检索它们。 服务器记录无线终端基于监听间隔唤醒和监听AP的监听时间。 当网络节点呼叫无线终端时，服务器根据监听时间缓存一段时间间隔的请求，然后将该请求发送给无线终端。

公开(公告)号：US20070005958A1

公开(公告)日：2007-01-04

申请号：US11220587

申请日：2005-09-08

Applicant: Yu-Ching Hsu ,  Chia-Chin Lin ,  Shiao-Li Tsao

Inventor： Yu-Ching Hsu ,  Chia-Chin Lin ,  Shiao-Li Tsao

IPC: H04L9/00

CPC classification number: H04L9/0833 ,  H04L63/0428 ,  H04L63/065 ,  H04L2209/601

Abstract: A cipher method and system for multicast service. A group includes multiple user equipment, each having a respective key. The keys are orthogonal to one another. A content provider provides a raw message to the user equipment of the group. A BM-SC server has a key set composed of the respective keys of all user equipment of the group to encipher the raw message to thus obtain an enciphered message for broadcast. All user equipment of the group receives and deciphers the enciphered message with the respective keys. When a user equipment leaves the group, the key set held by BM-SC is updated by removing the key of the leaving user equipment.

Abstract translation: 一种多播服务的密码方法和系统。 组包括多个用户设备，每个用户设备具有相应的密钥。 键彼此正交。 内容提供商向组的用户设备提供原始消息。 BM-SC服务器具有由组的所有用户设备的各个密钥组成的密钥组，以加密原始消息，从而获得用于广播的加密消息。 该组的所有用户设备都使用相应的密钥接收并解密加密的消息。 当用户设备离开组时，通过删除离开用户设备的密钥来更新由BM-SC保存的密钥集。

公开(公告)号：US07151931B2

公开(公告)日：2006-12-19

申请号：US10374111

申请日：2003-02-27

Applicant: Shiao-Li Tsao ,  Chia-Ching Lin

Inventor： Shiao-Li Tsao ,  Chia-Ching Lin

IPC: H04Q7/20

CPC classification number: H04W36/14 ,  H04W80/04 ,  H04W84/042 ,  H04W84/12 ,  H04W88/06

Abstract: A method and system enabling roaming between different wireless networks. A mobile device supporting low and high-tier wireless network standards is adapted to roam between a low-tier wireless network and a high-tier wireless network with lower bandwidth but more mobility than the low-tier wireless network. Via a virtual GPRS support node, a plurality of data packets and control signals are delivered between low and high-tier wireless networks.

Abstract translation: 一种能够在不同无线网络之间漫游的方法和系统。 支持低层和高层无线网络标准的移动设备适合在低层无线网络和低层无线网络之间漫游，低层无线网络具有较低带宽，但移动性低于低层无线网络。 通过虚拟GPRS支持节点，在低层和高层无线网络之间传送多个数据分组和控制信号。