公开(公告)号：US07586932B2

公开(公告)日：2009-09-08

申请号：US11228201

申请日：2005-09-19

申请人： Zi-Tsan Chou ,  Jen-Yi Pan ,  I-Hung Lin

发明人： Zi-Tsan Chou ,  Jen-Yi Pan ,  I-Hung Lin

IPC分类号： H04L12/413

CPC分类号： H04L12/413 ,  H04L12/4013

摘要： A contention window adjustment method capable of load-adaptive backoff (LAB) function in a network. At least one middle contention window (CWmid) is set for a station. If the contention window (CW) of a station is greater than CWmid, then that station considers that the network traffic load is heavy. Similarly, if the CW value of a station is no more than CWmid, then that station considers that the network traffic load is light. If collisions occur when the station is transmitting data frames, CW is doubled. Once the station successfully transmits the data frame, CW is decreased by different ratios according to the network traffic load.

摘要翻译： 一种能够在网络中进行负载自适应退避（LAB）功能的竞争窗口调整方法。 为站设置至少一个中间争用窗口（CWmid）。 如果站的争用窗口（CW）大于CWmid，则该站认为网络流量负载很重。 类似地，如果站的CW值不大于CWmid，则该站认为网络流量负载较轻。 当站正在发送数据帧时发生冲突，CW加倍。 一旦站成功发送数据帧，CW将根据网络流量负载减少不同的比例。

公开(公告)号：US20060245447A1

公开(公告)日：2006-11-02

申请号：US11228201

申请日：2005-09-19

申请人： Zi-Tsan Chou ,  Jen-Yi Pan ,  I-Hung Lin

发明人： Zi-Tsan Chou ,  Jen-Yi Pan ,  I-Hung Lin

IPC分类号： H04L12/413

CPC分类号： H04L12/413 ,  H04L12/4013

摘要： A contention window adjustment method capable of load-adaptive backoff (LAB) function in a network. At least one middle contention window (CWmid) is set for a station. If the contention window (CW) of a station is greater than CWmid, then that station considers that the network traffic load is heavy. Similarly, if the CW value of a station is no more than CWmid, then that station considers that the network traffic load is light. If collisions occur when the station is transmitting data frames, CW is doubled. Once the station successfully transmits the data frame, CW is decreased by different ratios according to the network traffic load.

摘要翻译： 一种能够在网络中进行负载自适应退避（LAB）功能的竞争窗口调整方法。 为站设置至少一个中间争用窗口（CW _{mid ）。 如果站的竞争窗口（CW）大于CW ，则该站认为网络业务负载很重。 类似地，如果站的CW值不超过CW mid ，则该站认为网络业务负载较轻。 当站正在发送数据帧时发生冲突，CW加倍。 一旦站成功发送数据帧，CW将根据网络流量负载减少不同的比例。}

公开(公告)号：US20120115460A1

公开(公告)日：2012-05-10

申请号：US12960010

申请日：2010-12-03

申请人： Yu-Hsiang LIN ,  Ching-Lun Lin ,  Zi-Tsan Chou ,  Rong-Hong Jan

发明人： Yu-Hsiang LIN ,  Ching-Lun Lin ,  Zi-Tsan Chou ,  Rong-Hong Jan

IPC分类号： H04W36/00 ,  H04W84/00 ,  H04W24/00 ,  H04W88/08

CPC分类号： H04W36/0083 ,  H04W84/045 ,  H04W88/02 ,  H04W88/08

摘要： A base station, a femtocell, and a handover monitoring method thereof are provided. A wireless network system comprises a server, a mobile device, the base station, and the femtocell. The base station transmits a monitoring signal to the femtocell after it obtains a piece of information corresponding to the mobile device from the server. The femtocell keeps detecting whether a signal is transmitted by the mobile device after it receives the monitoring signal. The femtocell transmits a response signal corresponding to the monitoring signal to the base station after it detects the signal transmitted by the mobile device. The base station transmits a handover signal to the mobile device after it receives the response signal so that the mobile device handovers from the base station to the femtocell. A handover monitoring from the base station to the femtocell for the mobile device is provided by the hand monitoring method.

摘要翻译： 提供了基站，毫微微小区及其切换监控方法。 无线网络系统包括服务器，移动设备，基站和毫微微小区。 基站从服务器获取与移动装置对应的信息之后，向毫微微小区发送监视信号。 毫微微小区在接收到监视信号之后继续检测移动设备是否发送信号。 毫微微小区在检测到由移动设备发送的信号之后，向基站发送与监视信号相对应的响应信号。 基站在接收到响应信号之后向移动设备发送切换信号，使得移动设备从基站切换到毫微微小区。 通过手动监视方法提供从基站到移动设备的毫微微小区的切换监视。

公开(公告)号：US20090141696A1

公开(公告)日：2009-06-04

申请号：US11962106

申请日：2007-12-21

申请人： Zi-Tsan Chou ,  Yu-Hsiang Lin ,  Lee-Jen Lu

发明人： Zi-Tsan Chou ,  Yu-Hsiang Lin ,  Lee-Jen Lu

IPC分类号： H04J3/00 ,  H04Q7/00

CPC分类号： H04L12/2801 ,  H04W72/14

摘要： A bandwidth recovery method for a communication system includes: transmitting a first uplink scheduling message to at least a first communication node and a second communication node of a plurality of communication nodes in the communication system; detecting if a communication channel is in an idle state after a first transmission start time; then, transmitting a second uplink scheduling message to the plurality of the communication nodes when the communication channel is found to be in the idle state after the first transmission start time.

摘要翻译： 用于通信系统的带宽恢复方法包括：向通信系统中的多个通信节点的至少第一通信节点和第二通信节点发送第一上行链路调度消息; 在第一传输开始时间之后检测通信信道是否处于空闲状态; 然后，当在第一传输开始时间之后发现通信信道处于空闲状态时，向多个通信节点发送第二上行链路调度消息。

公开(公告)号：US20070281658A1

公开(公告)日：2007-12-06

申请号：US11640402

申请日：2006-12-18

申请人： Zi-Tsan Chou

发明人： Zi-Tsan Chou

IPC分类号： H04B1/16

CPC分类号： H04W52/0216 ,  H04W52/0229 ,  H04W84/18 ,  Y02D70/142 ,  Y02D70/22

摘要： Asynchronous power management methods and systems for a first station and a second station in a wireless network. The second station dynamically tunes a SRI (Schedule Repetition Interval) value according to residual power status, quality-of-service requirements, or other considerations. The SRI value is an odd prime number. Once the SRI is determined, the second station sets the number and positions of ABIs (Awake Beacon Intervals)” within an SRI. An ABI-set defined as the positions of ABIs in an SRI forms a cyclic difference set comprising at least two consecutive BIs. The second station transmits a beacon frame within a beacon window. When the first station has recently received the beacon frame from the second station, the first station predicts the awake/sleep schedule of the second station, and transmits data frames to the second station at the ABI of the second station.

摘要翻译： 用于无线网络中的第一站和第二站的异步电力管理方法和系统。 第二站根据剩余电力状态，服务质量要求或其他考虑动态调整SRI（计划重复间隔）值。 SRI值是一个奇数素数。 一旦确定了SRI，则第二站设置SRI内的ABI（唤醒信标间隔）的数量和位置。定义为SRI中的ABI的位置的ABI集合形成包括至少两个连续的BI的循环差分集 第二站在信标窗口内发送信标帧，当第一站最近从第二站接收到信标帧时，第一站预测第二站的唤醒/睡眠调度，并向第二站发送数据帧 在第二站的ABI。

公开(公告)号：US20060109804A1

公开(公告)日：2006-05-25

申请号：US11028521

申请日：2005-01-05

申请人： Hao-Li Wang ,  Zi-Tsan Chou ,  Kuo-Hwa Wu ,  Lee-Jen Lu

发明人： Hao-Li Wang ,  Zi-Tsan Chou ,  Kuo-Hwa Wu ,  Lee-Jen Lu

IPC分类号： H04Q7/00

CPC分类号： H04W28/06 ,  H04W56/00 ,  H04W74/08 ,  H04W84/18

摘要： Provided is a system for parallel transmission over WLAN and method therefor. The method comprises causing a first mobile station to transmit an RTS and causing a second mobile station to transmit a CTS after receiving the RTS; searching third mobile stations to find any one receiving the RTS not the CTS and taking it as transmitting terminal; after receiving the CTS causing the first mobile station to transmit a first fragmentation to the second mobile station, after receiving the first fragmentation causing the second mobile station to reply to the first mobile station with an ACK, and repeatedly causing the first mobile station to transmit a next fragmentation until the fragmentations have been transmitted; and causing the transmitting terminal to transmit an RTS to a receiving terminal when the first mobile station is transmitting, and causing the receiving terminal to transmit a CTS after the second mobile station replying to the first mobile station with the ACK.

摘要翻译： 提供了一种用于通过WLAN并行传输的系统及其方法。 该方法包括：使第一移动台发送RTS并使第二移动台在接收到RTS之后发送CTS; 搜索第三个移动台，发现任何一个接收RTS而不是CTS并将其作为发送终端; 在接收到使得第一移动站向第二移动台发送第一分段的CTS之后，在接收到使得第二移动台以ACK发回第一移动台的第一分段之后，并且重复地使第一移动台发送 直到碎片传播为止的下一个碎片; 并且当所述第一移动台正在发送时，使所述发送终端向接收终端发送RTS，并且使得所述接收终端在所述第二移动台以所述ACK回复所述第一移动台之后发送CTS。

公开(公告)号：US08554223B2

公开(公告)日：2013-10-08

申请号：US12960010

申请日：2010-12-03

申请人： Yu-Hsiang Lin ,  Ching-Lun Lin ,  Zi-Tsan Chou ,  Rong-Hong Jan

发明人： Yu-Hsiang Lin ,  Ching-Lun Lin ,  Zi-Tsan Chou ,  Rong-Hong Jan

IPC分类号： H04W36/00

CPC分类号： H04W36/0083 ,  H04W84/045 ,  H04W88/02 ,  H04W88/08

摘要： A base station, a femtocell, and a handover monitoring method thereof are provided. A wireless network system comprises a server, a mobile device, the base station, and the femtocell. The base station transmits a monitoring signal to the femtocell after it obtains a piece of information corresponding to the mobile device from the server. The femtocell keeps detecting whether a signal is transmitted by the mobile device after it receives the monitoring signal. The femtocell transmits a response signal corresponding to the monitoring signal to the base station after it detects the signal transmitted by the mobile device. The base station transmits a handover signal to the mobile device after it receives the response signal so that the mobile device handovers from the base station to the femtocell. A handover monitoring from the base station to the femtocell for the mobile device is provided by the hand monitoring method.

摘要翻译： 提供了基站，毫微微小区及其切换监控方法。 无线网络系统包括服务器，移动设备，基站和毫微微小区。 基站从服务器获取与移动装置对应的信息之后，向毫微微小区发送监视信号。 毫微微小区在接收到监视信号之后继续检测移动设备是否发送信号。 毫微微小区在检测到由移动设备发送的信号之后，向基站发送与监视信号相对应的响应信号。 基站在接收到响应信号之后向移动设备发送切换信号，使得移动设备从基站切换到毫微微小区。 通过手动监视方法提供从基站到移动设备的毫微微小区的切换监视。

公开(公告)号：US07848277B2

公开(公告)日：2010-12-07

申请号：US11359539

申请日：2006-02-23

申请人： Zi-Tsan Chou ,  Ching-Chi Hsu

发明人： Zi-Tsan Chou ,  Ching-Chi Hsu

IPC分类号： H04B7/185

CPC分类号： H04W52/0229 ,  H04W84/18 ,  Y02D70/142 ,  Y02D70/22

摘要： Power management methods and systems for a first station and a second station in an ad-hoc network. Each station enters the normal beacon interval (NBI) every certain number of beacon intervals (BIs) for data transmission, a Listen Interval (LI). When a station switches to a power-saving mode, it first determines the number of “beacon-window-only beacon intervals (BBIs)” within a LI. In addition, each station broadcasts a beacon frame comprising at least information about “the remaining number of BIs (RBI)” within a beacon window. Once the first station correctly receives the beacon frame from the second station, the first station predicts the NBI of the second station according to the RBI. At the NBI of the second station, the first station transmits data frames to the second station.

摘要翻译： 在ad-hoc网络中的第一站和第二站的电源管理方法和系统。 每个站每隔一定数量的信标间隔（BI）进入数据传输的正常信标间隔（NBI），即监听间隔（LI）。 当站切换到省电模式时，它首先确定LI内的“仅信标窗口信标间隔（BBI）”的数量。 此外，每个站广播包括信标窗口内至少关于“剩余BI（BII）”的信息的信标帧。 一旦第一站正确地从第二站接收到信标帧，则第一站根据RBI预测第二站的NBI。 在第二站的NBI处，第一站向第二站发送数据帧。

公开(公告)号：US07418004B2

公开(公告)日：2008-08-26

申请号：US11022866

申请日：2004-12-28

申请人： Zi-Tsan Chou

发明人： Zi-Tsan Chou

IPC分类号： H04L12/403

CPC分类号： H04L41/5019 ,  H04L41/5003 ,  H04W74/06 ,  Y02D70/142 ,  Y02D70/25

摘要： A MAC method has three procedures: a prioritization procedure, a collision resolution procedure, and a polling procedure. The prioritization procedure employs the handshaking method to ensure that a high priority station can join the polling list earlier than a low priority station. The collision resolution procedure employs a tree-splitting algorithm to ensure all active stations that underwent the prioritization period can join the polling list in a bounded time. In the polling procedure, the AP allocates the TXOP for each admitted station and schedules the transmission order of all admitted stations. In addition, the AP broadcasts the schedule information in the V-POLL frame. A power-saving station can wake up at the start of the contention-free period. To conserve power, on inspecting the V-POLL frame, if a PS station finds that it cannot transmit nor receive data frames during the polling period, then that station may return to the doze state.

摘要翻译： MAC方法有三个过程：优先级过程，冲突解决过程和轮询过程。 优先级过程采用握手方法，以确保高优先级站点可以早于低优先级站点加入轮询列表。 冲突解决过程采用树分解算法，以确保经过优先级周期的所有活动站可以在有界时间内加入轮询列表。 在轮询过程中，AP为每个接入站分配TXOP，并安排所有入站的传输顺序。 此外，AP在V-POLL帧中广播调度信息。 省电站可以在无竞争期间开始醒来。 为了节省电力，在检查V-POLL帧时，如果PS站在轮询期间发现它不能发送也不能接收数据帧，则该站可能返回到打盹状态。

公开(公告)号：US20070275748A1

公开(公告)日：2007-11-29

申请号：US11640196

申请日：2006-12-18

申请人： Zi-Tsan Chou

发明人： Zi-Tsan Chou

IPC分类号： H04B7/00

CPC分类号： H04W52/343 ,  H04W52/265

摘要： Adaptive power management methods and systems for a first station and a second station in a wireless network. Each station operating in the power-saving (PS) mode adaptively determines a “listen interval” (LI) according to residual power state, quality-of-service requirements, or other considerations. The LI is composed of a “normal beacon interval” (NBI) followed by the combination of “beacon-window-only beacon intervals” (BBIs) and “sleep beacon intervals” (SBIs). The LI value is one or a prime number which is larger than two, and the positions of the NBI and BBIs in an LI form a cyclic difference set. Each station broadcasts a beacon frame comprising at least information about “the remaining number of BIs (RBI)” within a beacon window. Once the first station correctly receives the beacon frame from the second station, the first station predicts the awake/sleep schedule of the second station, and transmits data frames to the second station at the NBI of the second station.

摘要翻译： 用于无线网络中的第一站和第二站的自适应功率管理方法和系统。 在功率节省（PS）模式下工作的每个站根据剩余功率状态，服务质量要求或其他考虑自适应地确定“监听间隔”（LI）。 LI由“正常信标间隔”（NBI）和“仅信标窗口信标间隔”（BBI）和“睡眠信标间隔”（SBI））的组合组成。 LI值是1或大于2的素数，并且LI中的NBI和BBI的位置形成循环差分集。 每个站广播信标帧，该信标帧至少包括关于信标窗口内的“剩余BI数（RBI）”的信息。 一旦第一站正确地从第二站接收到信标帧，则第一站预测第二站的唤醒/睡眠调度，并且在第二站的NBI处向第二站发送数据帧。