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41. 发明授权

US08787195B2 Beacon selection in communication networks 有权
标题翻译：通信网络中的信标选择
公开(公告)号：US08787195B2
公开(公告)日：2014-07-22
申请号：US13531324
申请日：2012-06-22
申请人： Kumaran Vijayasankar , Ramanuja Vedantham , Robert Liang , Susan Yim , Xiaolin Lu
发明人： Kumaran Vijayasankar , Ramanuja Vedantham , Robert Liang , Susan Yim , Xiaolin Lu
IPC分类号： H04L12/26
CPC分类号： H04B3/542 , H04L5/0007 , H04L25/0264
摘要： Systems and methods for beacon selection in communication networks are described. In various implementations, these systems and methods may be applicable to Power Line Communications (PLC). For example, a method may include performing, using a terminal device deployed in a communications network, receiving a beacon transmitted by a switch device within the communications network and, in response to the terminal device having had a previous connection with the switch device, determining a connection time of the previous connection. The method may also include performing at least one of: adding the switch device to a blacklist in response to the connection time being smaller than a first threshold value, or selecting the switch device for subsequent communication in response to the connection time being greater than a second threshold value.
摘要翻译：描述了通信网络中信标选择的系统和方法。在各种实现中，这些系统和方法可以适用于电力线通信（PLC）。例如，一种方法可以包括使用部署在通信网络中的终端设备来接收由通信网络内的交换设备发送的信标，并且响应于终端设备已经与交换设备之前的连接，确定上一次连接的连接时间。该方法还可以包括执行以下至少之一：响应于小于第一阈值的连接时间将交换设备添加到黑名单中，或者响应于连接时间大于第一阈值来选择交换设备进行后续通信第二阈值。

42. 发明授权

US08711873B2 Carrier sense multiple access (CSMA) protocols for power line communications (PLC) 有权
标题翻译：电力线通信（PLC）的载波侦听多路访问（CSMA）协议
公开(公告)号：US08711873B2
公开(公告)日：2014-04-29
申请号：US13300812
申请日：2011-11-21
申请人： Shu Du , Robert Liang , Xiaolin Lu
发明人： Shu Du , Robert Liang , Xiaolin Lu
IPC分类号： H04L12/413
CPC分类号： H04L12/413 , H04B3/544 , H04L5/0096
摘要： Systems and methods for carrier sense multiple access (CSMA) protocols for power line communications (PLC) are described. In some embodiments, a method may include performing a virtual carrier sensing operation and, in response to the virtual carrier sensing operation indicating that a communication channel is idle, calculating a contention window. The method may also include performing a physical carrier sensing operation subsequent to the virtual carrier sensing operation, the physical carrier sensing operation based, at least in part, upon the contention window. In response to the physical carrier sensing operation indicating that the communication channel is idle, the method may then include transmitting data over the channel. In other embodiments, another method may include determining that a data transmission is a unicast transmission and that an acknowledgement message has not been received. The method may further include incrementing a backoff parameter and repeating one or more carrier sense operations.
摘要翻译：描述了用于电力线通信（PLC）的载波侦听多路访问（CSMA）协议的系统和方法。在一些实施例中，方法可以包括执行虚拟载波侦听操作，并且响应于指示通信信道空闲的虚拟载波侦听操作，计算竞争窗口。该方法还可以包括在虚拟载波感测操作之后执行物理载波感测操作，至少部分地基于竞争窗口进行物理载波感测操作。响应于指示通信信道空闲的物理载波感测操作，该方法然后可以包括通过信道发送数据。在其他实施例中，另一种方法可以包括确定数据传输是单播传输，还没有接收到确认消息。该方法还可以包括增加退避参数并重复一个或多个载波检测操作。

43. 发明授权

US08457058B2 MAC allocation frame with allocation fields specifying transmitter or receiver 有权
标题翻译： MAC分配帧，分配字段指定发射机或接收机
公开(公告)号：US08457058B2
公开(公告)日：2013-06-04
申请号：US12892287
申请日：2010-09-28
申请人： Jin-Meng Ho , Don Shaver , Xiaolin Lu
发明人： Jin-Meng Ho , Don Shaver , Xiaolin Lu
IPC分类号： H04W4/00
CPC分类号： H04W24/02 , H04B7/04 , H04L1/0006 , H04L1/1621 , H04L1/1671 , H04L49/9057 , H04W28/06 , H04W28/065
摘要： Apparatus and methods implement aggregation frames and allocation frames. The aggregation frames include a plurality of MSDUs or fragments thereof aggregated or otherwise combined together. An aggregation frame makes more efficient use of the wireless communication resources. The allocation frame defines a plurality of time intervals. The allocation frame specifies a pair of stations that are permitted to communicate with each other during each time interval as well as the antenna configuration to be used for the communication. This permits stations to know ahead of time when they are to communicate, with which other stations and the antenna configuration that should be used. A buffered traffic field can also be added to the frames to specify how much data remains to be transmitted following the current frame. This enables network traffic to be scheduled more effectively.
摘要翻译：装置和方法实现聚合帧和分配帧。聚合帧包括聚合或以其他方式组合在一起的多个MSDU或其片段。聚合帧更有效地利用无线通信资源。分配帧定义多个时间间隔。分配帧指定在每个时间间隔期间允许彼此通信的一对站以及要用于通信的天线配置。这样就可以让站台在进行通信时提前知道，哪些其他站点和应该使用的天线配置。还可以将缓冲的业务字段添加到帧，以指定在当前帧之后剩余多少数据被发送。这样可以更有效地安排网络流量。

44. 发明申请

US20120314661A1 Adaptive Transmissions in Wireless Networks 有权
标题翻译：无线网络中的自适应传输
公开(公告)号：US20120314661A1
公开(公告)日：2012-12-13
申请号：US13590659
申请日：2012-08-21
申请人： Yanjun Sun , Ariton E. Xhafa , Xiaolin Lu , Josef Peery
发明人： Yanjun Sun , Ariton E. Xhafa , Xiaolin Lu , Josef Peery
IPC分类号： H04W92/10
CPC分类号： H04W80/00 , H04W74/002 , H04W74/04
摘要： A network includes an access point using a first protocol and a station using both the first protocol and a second protocol. The station uses the first protocol before a first threshold and a second protocol after the first threshold. A first duration between the second threshold and the first threshold is at least of sufficient length for the station to receive one data packet from the access point and send an acknowledgment. The station transmits to the access point a current clear-to-send packet at a current time during a current exchange based on success or failure of a previous exchange during which a previous clear-to-send packet was transmitted to the access point at a previous time.
摘要翻译：网络包括使用第一协议的接入点和使用第一协议和第二协议的站。该站在第一阈值之前使用第一协议，在第一阈值之后使用第二协议。第二阈值与第一阈值之间的第一持续时间至少足够长，用于站从接入点接收一个数据分组并发送确认。基站根据先前交换的成功或失败在当前交换中的当前时间向接入点发送当前清除发送的分组，在该交换过程中先前的发送分组被发送到接入点以前的时间。

45. 发明申请

US20120294377A1 Beacon Selection in Communication Networks 有权
标题翻译：通信网络中的信标选择
公开(公告)号：US20120294377A1
公开(公告)日：2012-11-22
申请号：US13531324
申请日：2012-06-22
申请人： Kumaran Vijayasankar , Ramanuja Vedantham , Robert Liang , Susan Yim , Xiaolin Lu
发明人： Kumaran Vijayasankar , Ramanuja Vedantham , Robert Liang , Susan Yim , Xiaolin Lu
IPC分类号： H04B3/00
CPC分类号： H04B3/542 , H04L5/0007 , H04L25/0264
摘要： Systems and methods for beacon selection in communication networks are described. In various implementations, these systems and methods may be applicable to Power Line Communications (PLC). For example, a method may include performing, using a terminal device deployed in a communications network, receiving a beacon transmitted by a switch device within the communications network and, in response to the terminal device having had a previous connection with the switch device, determining a connection time of the previous connection. The method may also include performing at least one of: adding the switch device to a blacklist in response to the connection time being smaller than a first threshold value, or selecting the switch device for subsequent communication in response to the connection time being greater than a second threshold value.
摘要翻译：描述了通信网络中信标选择的系统和方法。在各种实现中，这些系统和方法可以适用于电力线通信（PLC）。例如，一种方法可以包括使用部署在通信网络中的终端设备来接收由通信网络内的交换设备发送的信标，并且响应于终端设备已经与交换设备之前的连接，确定上一次连接的连接时间。该方法还可以包括执行以下至少之一：响应于小于第一阈值的连接时间将交换设备添加到黑名单中，或者响应于连接时间大于第一阈值来选择交换设备进行后续通信第二阈值。

46. 发明授权

US08290492B2 Handover for DVB-H 有权
标题翻译： DVB-H的切换
公开(公告)号：US08290492B2
公开(公告)日：2012-10-16
申请号：US11800703
申请日：2007-05-04
申请人： Xiaolin Lu , Rao P. Venkatasadasiva , Zigang Yang , Anand Ganesh Dabak , Badri Varadarajan , Srinath Hosur , Susan Yim
发明人： Xiaolin Lu , Rao P. Venkatasadasiva , Zigang Yang , Anand Ganesh Dabak , Badri Varadarajan , Srinath Hosur , Susan Yim
IPC分类号： H04W36/00
CPC分类号： H04H20/26 , H04H20/67 , H04W36/08 , H04W36/30 , H04W36/36
摘要： A method of wireless handover in a broadcast network (FIGS. 5 and 8) is disclosed. A wireless receiver (FIG. 4) receives a first signal (N) from a first transmitter (f1). The receiver measures a signal strength (RSSI) of the first signal. The strength of the first signal is compared to a first threshold (T0). The receiver receives a second signal (N+3) from a second transmitter (f3) in response to the step of comparing. The first and the second signals are sent to an application processor (120). The wireless receiver continues to receive the first and second signals until the application processor terminates receiving one of the first and second signals.
摘要翻译：公开了广播网络中的无线切换的方法（图5和图8）。无线接收机（图4）从第一发射机（f1）接收第一信号（N）。接收机测量第一信号的信号强度（RSSI）。将第一信号的强度与第一阈值（T0）进行比较。响应于比较步骤，接收机从第二发射机（f3）接收第二信号（N + 3）。第一和第二信号被发送到应用处理器（120）。无线接收机继续接收第一和第二信号，直到应用处理器终止接收第一和第二信号之一。

47. 发明申请

US20120257639A1 Communications in Beacon-Enabled Networks 有权
标题翻译：信标网络中的通信
公开(公告)号：US20120257639A1
公开(公告)日：2012-10-11
申请号：US13435862
申请日：2012-03-30
申请人： Kumaran Vijayasankar , Shu Du , Anand Dabak , Badri Varadarajan , Il Han Kim , Xiaolin Lu
发明人： Kumaran Vijayasankar , Shu Du , Anand Dabak , Badri Varadarajan , Il Han Kim , Xiaolin Lu
IPC分类号： H04J4/00 , H04J3/00 , H04B3/54
CPC分类号： H04B3/542 , H04L5/0007 , H04L5/0048 , H04L5/0053 , H04L5/0073
摘要： Systems and methods for designing, using, and/or implementing communications in beacon-enabled networks are described. In various implementations, these systems and methods may be applicable to power line communications (PLC). For example, a method may include identifying one of a plurality of orthogonal superframes. The identified superframe may include beacon slots and contention access period (CAP) slots. The beacon slots may follow a sequence of two or more frequency subbands, and the CAP slots may follow the same sequence of two or more frequency subbands. Also, the sequence of two or more frequency subbands may be distinct from other sequences of two or more frequency subbands followed by other beacon slots and CAP slots within others of the plurality of available superframes. The method may then include communicating with another device using the identified superframe.
摘要翻译：描述了在启用信标的网络中设计，使用和/或实现通信的系统和方法。在各种实现中，这些系统和方法可以应用于电力线通信（PLC）。例如，方法可以包括识别多个正交超帧中的一个。所识别的超帧可以包括信标时隙和竞争接入时隙（CAP）时隙。信标时隙可以遵循两个或更多个频率子带的序列，并且CAP时隙可以遵循两个或更多个频率子带的相同序列。而且，两个或多个频率子带的序列可以与两个或多个频率子带的其他序列不同，后面是多个可用超帧中的其他信标时隙和CAP时隙。该方法然后可以包括使用所识别的超帧与另一设备进行通信。

48. 发明授权

US07930565B2 Power-optimizing memory analyzer, method of operating the analyzer and system employing the same 有权
标题翻译：电源优化存储器分析仪，操作分析仪的方法及采用该分析仪的系统
公开(公告)号：US07930565B2
公开(公告)日：2011-04-19
申请号：US11853674
申请日：2007-09-11
申请人： Saowanee Saewong , Xiaolin Lu
发明人： Saowanee Saewong , Xiaolin Lu
IPC分类号： G06F1/00 , G06F1/26 , G06F1/32 , G06F9/46
CPC分类号： G06F1/3203 , G06F1/3275 , Y02D10/13 , Y02D10/14 , Y02D50/20
摘要： Embodiments of the present disclosure provide a power-optimizing memory analyzer, a method of operating a power-optimizing memory analyzer and a memory system employing the analyzer or the method. In one embodiment, the power-optimizing memory analyzer is for use with an array of memory blocks and includes a task database configured to provide a parameter set corresponding to each of a set of tasks to be performed in a system. The power-optimizing memory analyzer also includes an allocation module configured to determine offline, a group of memory blocks in the array corresponding to the parameter set for each task and based on providing a power reduction for the array. The power-optimizing memory analyzer further includes a power profiling module configured to generate run-time power profiles of memory power states for each task allowing transparent and dynamic control of the memory power states while maintaining a required quality of service.
摘要翻译：本公开的实施例提供了功率优化存储器分析器，操作功率优化存储器分析仪的方法和采用分析器或方法的存储器系统。在一个实施例中，功率优化存储器分析器用于存储器块阵列，并且包括被配置为提供与在系统中执行的一组任务相对应的参数集的任务数据库。功率优化存储器分析器还包括被配置为确定离线的分配模块，阵列中对应于每个任务的参数集的一组存储器块，并且基于为阵列提供功率降低。功率优化存储器分析器还包括功率分析模块，其被配置为为每个任务产生存储器功率状态的运行时功率分布，允许对存储器功率状态的透明和动态控制，同时保持所需的服务质量。

49. 发明授权

US07680150B2 Virtual clear channel avoidance (CCA) mechanism for wireless communications 有权
标题翻译：用于无线通信的虚拟通道回避（CCA）机制
公开(公告)号：US07680150B2
公开(公告)日：2010-03-16
申请号：US10823102
申请日：2004-04-13
申请人： Yonghe Liu , Xiaolin Lu
发明人： Yonghe Liu , Xiaolin Lu
IPC分类号： H04J3/16
CPC分类号： H04W74/0816 , H04W48/02 , H04W48/08
摘要： An arrangement avoids contention on a communication medium among devices including at least a transmitter and a receiver. The arrangement involves a first portion configured to instruct a receiver to indicate that the communication medium is busy for a time period substantially longer than an actual frame transmission period being sent from the transmitter to the receiver, and a second portion configured to prohibit the receiver from transmitting on the communication medium during the time period.
摘要翻译：一种装置避免了在包括至少发射机和接收机的设备之间的通信介质上的竞争。该装置包括：第一部分，被配置为指示接收机指示通信介质正忙于一段时间段，该时间段实质上长于从发射机发送到接收机的实际帧传输周期;以及第二部分，被配置为禁止接收机在该时间段内在通信介质上进行发送。

50. 发明授权

US07509565B2 Wireless access modem having downstream channel resynchronization method 有权
标题翻译：具有下行信道重新同步方式的无线接入调制解调器
公开(公告)号：US07509565B2
公开(公告)日：2009-03-24
申请号：US11470916
申请日：2006-09-07
申请人： Xiaolin Lu , Srinath Hosur , Manish Goel , Michael O Polley
发明人： Xiaolin Lu , Srinath Hosur , Manish Goel , Michael O Polley
IPC分类号： H03M13/00 , H04L5/16
CPC分类号： H04W56/009 , H04L7/048 , H04L7/10 , H04W24/00 , H04W74/00
摘要： A resynchronization method for use in a data communication system having a first device configured to transmit data at a symbol rate to a second device. The second device includes a Reed Solomon (RS) decoder having a RS lock indicator and a Moving Picture Experts Group (MPEG) Protocol Interface (MPI) having a MPI lock indicator, wherein the RS and MPI lock indicators are monitored. Four different states, defined by the values of the RS and MPI lock indicators, determine whether the data communication system will wait for the RS decoded and the MPI hardware block to resynchronize, whether an intermediate-subset of the channel acquisition algorithm is performed or whether the entire channel acquisition algorithm is performed. The method of resynchronization described herein recovers synchronization within a predetermined time without the layers above the physical link layer having knowledge.
摘要翻译：一种用于具有第一设备的数据通信系统中的再同步方法，该第一设备被配置为以符号速率向第二设备发送数据。第二装置包括具有RS锁指示器的Reed Solomon（RS）解码器和具有MPI锁定指示器的运动图像专家组（MPEG）协议接口（MPI），其中监视RS和MPI锁定指示符。由RS和MPI锁指示器的值定义的四种不同状态确定数据通信系统是否将等待RS解码和MPI硬件块重新同步，无论是执行信道获取算法的中间子集还是执行执行整个信道获取算法。本文所述的重新同步的方法在预定时间内恢复同步，而不具有具有知识的物理链路层之上的层。

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