-
公开(公告)号：US08588115B2
公开(公告)日：2013-11-19
申请号：US12087557
申请日：2006-12-19
CPC分类号： H04W72/085 , H04W16/14
摘要： The invention provides apparatus methods for avoiding channel collisions in Wireless Regional Area Networks (WRAN), A medium access controller (MAC) for switching a base station (BS) of a WRAN from a first channel to a second channel at a time t is provided. The MAC includes a switch time delay circuit for delaying said switching with respect to time t by a random delay time.
摘要翻译： 本发明提供了一种用于避免无线区域网络（WRAN）中的信道冲突的装置方法，提供了一种用于在时间t将WRAN的基站（BS）从第一信道切换到第二信道的媒体接入控制器（MAC） 。 MAC包括用于将所述相对于时间t的切换延迟随机延迟时间的开关时间延迟电路。
-
2.发明授权公开(公告)号：US08537730B2
公开(公告)日：2013-09-17
申请号：US12224537
申请日：2006-03-01
IPC分类号： H04B7/00
CPC分类号： H04B10/0771 , H04B2210/077
摘要： A method and apparatus for sensing channel availability in a wireless network are described including switching to a first candidate channel for operational data transmission and reception sensing a previous operating channel for availability, determining if the previous operating channel is available, switching back to the previous operating channel if the previous operating channel is available and one of continuing to use the candidate channel for operational data transmission and reception and immediately switching to a second candidate channel for operational data transmission and reception and switching to the second candidate channel for operational data transmission and reception after a pre-determined period of time. Also described is a system for sensing channel availability in a cognitive network including an RF unit, for switching channels, a sensing unit for sensing channel availability and a media access control unit for controlling the sensing unit and the RF unit.
摘要翻译： 描述了一种用于感测无线网络中的信道可用性的方法和装置，包括切换到用于操作数据传输和接收的第一候选信道，感测先前的操作信道的可用性，确定先前的操作信道是否可用，切换回先前的操作 如果先前的操作信道可用并且继续使用用于操作数据发送和接收的候选信道，并立即切换到用于操作数据发送和接收的第二候选信道，并切换到用于操作数据发送和接收的第二候选信道 经过预定的时间段。 还描述了一种用于感知认知网络中的信道可用性的系统，包括用于切换信道的RF单元，用于感测信道可用性的感测单元和用于控制感测单元和RF单元的媒体访问控制单元。
-
3.发明申请Apparatus and Method for Transmit Power Control Frequency Selection in Wireless Networks 审中-公开无线网络中发射功率控制频率选择的装置和方法公开(公告)号：US20090286565A1
公开(公告)日：2009-11-19
申请号：US12084618
申请日：2006-11-01
CPC分类号： H04W16/10 , H04L5/0037 , H04L5/0044 , H04L5/0062 , H04W52/04
摘要： A wireless endpoint is a Wireless Regional Area Network (WRAN) endpoint, such as a base station (BS) or customer premise equipment (CPE). The WRAN endpoint performs channel sensing to determine which channels are available for use and begins transmission on an available channel. Upon detection of a TV broadcast on an adjacent channel, the WRAN endpoint adjusts a power level of its transmitted signal.
摘要翻译： 无线终端是无线区域网络（WRAN）端点，例如基站（BS）或客户驻地设备（CPE）。 WRAN端点执行信道感测以确定哪些信道可用于可用信道，并在可用信道上开始传输。 在检测到相邻信道上的TV广播时，WRAN端点调整其发送信号的功率电平。
-
4.发明申请公开(公告)号：US20100092178A1
公开(公告)日：2010-04-15
申请号：US12224537
申请日：2006-03-01
IPC分类号： H04B10/16
CPC分类号： H04B10/0771 , H04B2210/077
摘要： A method and apparatus is provided for applying an electroding tone to a power conductor located in an undersea optical cable employed in an undersea optical transmission system having at least one repeater. The method begins by applying a DC line current to the power conductor. The DC line current has a value sufficient to power the repeater and less than a value sufficient to power the repeater and to perform electroding. An AC current is impressed on the DC line current at a prescribed frequency and a peak-to-peak amplitude ranging from zero and a prescribed value to generate the tone. The impression or application of the AC current is terminated after a period of time at least sufficient to locate the optical cable or an optical cable fault.
摘要翻译： 提供一种方法和装置，用于向位于具有至少一个中继器的海底光传输系统中使用的海底光缆中的电力导体施加电喷音。 该方法开始于将直流线路电流施加到电力导体。 DC线电流具有足够的功率给中继器供电并且小于足以为中继器供电并执行电镀的值。 在规定频率的直流线电流上施加交流电流，从零到规定值的峰 - 峰幅度产生音调。 AC电流的印象或应用在至少足以定位光缆或光缆故障的一段时间后终止。
-
5.发明申请公开(公告)号：US20090252096A1
公开(公告)日：2009-10-08
申请号：US12084617
申请日：2006-11-01
IPC分类号： H04W72/04
CPC分类号： H04W16/10 , H04L5/0037 , H04L5/0044 , H04L5/0062 , H04W52/04
摘要： A wireless endpoint is a Wireless Regional Area Network (WRAN) endpoint, such as a base station (BS) or customer premise equipment (CPE). The WRAN endpoint can transmit an orthogonal frequency division multiplexed (OFDM) signal comprising 2048 subcarriers in a channel. The 2048 subcarriers are divided into 16 subcarrier sets, or subchannels, each subcarrier set comprising 128 subcarriers. However, upon detection of an incumbent narrowband signal in the channel, the WRAN endpoint forms a frequency usage map for transmission to another WRAN endpoint, wherein the frequency usage map identifies one, or more, of the subcarrier sets that would interfere with the incumbent narrowband signal.
摘要翻译： 无线终端是无线区域网络（WRAN）端点，例如基站（BS）或客户驻地设备（CPE）。 WRAN端点可以在信道中发送包括2048个子载波的正交频分复用（OFDM）信号。 2048个子载波被分成16个子载波组或子信道，每个子载波集包括128个子载波。 然而，在检测到信道中的现有窄带信号时，WRAN端点形成用于传输到另一个WRAN端点的频率使用图，其中，频率使用图识别干扰现有窄带的子载波集合中的一个或多个 信号。
-
6.发明申请公开(公告)号：US20090067354A1
公开(公告)日：2009-03-12
申请号：US12087557
申请日：2006-12-19
CPC分类号： H04W72/085 , H04W16/14
摘要： The invention provides apparatus methods for avoiding channel collisions in Wireless Regional Area Networks (WRAN), A medium access controller (MAC) for switching a base station (BS) of a WRAN from a first channel to a second channel at a time t is provided. The MAC includes a switch time delay circuit for delaying said switching with respect to time t by a random delay time.
摘要翻译： 本发明提供了一种用于避免无线区域网络（WRAN）中的信道冲突的装置方法，提供了一种用于在时间t将WRAN的基站（BS）从第一信道切换到第二信道的媒体接入控制器（MAC） 。 MAC包括用于将所述相对于时间t的切换延迟随机延迟时间的开关时间延迟电路。
-
公开(公告)号：US20090161774A1
公开(公告)日：2009-06-25
申请号：US12084515
申请日：2006-11-01
IPC分类号： H04L27/28
CPC分类号： H04W16/10 , H04L5/0037 , H04L5/0044 , H04L5/0062 , H04W52/04
摘要： A wireless endpoint is a Wireless Regional Area Network (WRAN) endpoint, such as a base station (BS) or customer premise equipment (CPE). The WRAN endpoint can transmit an orthogonal frequency division multiplexed (OFDM) signal comprising 2048 subcarriers in a channel. The 2048 subcarriers are divided into 16 subcarrier sets, or subchannels, each subcarrier set comprising 128 subcarriers. However, upon detection of an incumbent narrowband signal in the channel, the WRAN endpoint forms the OFDM signal for transmission in such a way that the WRAN endpoint excludes use of those one, or more, of the subcarrier sets that would interfere with the incumbent narrowband signal.
摘要翻译： 无线终端是无线区域网络（WRAN）端点，例如基站（BS）或客户驻地设备（CPE）。 WRAN端点可以在信道中发送包括2048个子载波的正交频分复用（OFDM）信号。 2048个子载波被分成16个子载波组或子信道，每个子载波集包括128个子载波。 然而，在检测到信道中的现有窄带信号时，WRAN端点形成用于传输的OFDM信号，使得WRAN端点排除使用将干扰现有窄带的子载波集中的那些或更多个 信号。
-
公开(公告)号：US09661029B2
公开(公告)日：2017-05-23
申请号：US13439982
申请日：2012-04-05
申请人： Osama Lotfallah , Milan Patel , Xavier De Foy , Debashish Purkayastha , Hang Liu , Kamel M. Shaheen
发明人： Osama Lotfallah , Milan Patel , Xavier De Foy , Debashish Purkayastha , Hang Liu , Kamel M. Shaheen
CPC分类号： H04L65/1016 , H04L12/145 , H04L41/0896 , H04L65/80 , H04W4/02 , H04W92/18
摘要： A method and apparatus for generating a topology for wireless peer-to-peer (P2P) networks. A network architecture comprises a traffic optimization service including a traffic optimization server and an adaptor to effect bi-directional translation of a request-response protocol of the traffic optimization service and a signaling protocol of a multimedia network. The traffic optimization server stores information related to wireless communication systems comprising user/location id information including cache proxies, media gateways, and network peers of multiple access networks and cost metric information including maximum bit rate, guaranteed bit rate, storage capacity, CPU capabilities, number of clients serving, battery capabilities, reliability of path, and supported video/audio codec.
-
9.发明授权Combining bandwidth aware routing with channel selection and switching in a multi-hop wireless home network 有权将带宽感知路由与多跳无线家庭网络中的信道选择和交换相结合公开(公告)号：US09155019B2
公开(公告)日：2015-10-06
申请号：US13814868
申请日：2010-08-11
申请人： Mingquan Wu , Hang Liu , Saurabh Mathur
发明人： Mingquan Wu , Hang Liu , Saurabh Mathur
IPC分类号： H04W40/12 , H04W36/06 , H04L12/729 , H04W40/28
CPC分类号： H04W40/12 , H04L45/125 , H04W36/06 , H04W40/28
摘要： A method and apparatus are described including selecting a first route between a source node and a destination node using a bandwidth-aware routing protocol, determining if the selected first route satisfies a bandwidth requirement of an application of the source node, initiating a switch to a new channel selected from a back-up channel list if the bandwidth requirement of the application is not satisfied by the selected route, selecting a second route over the new channel using the bandwidth-aware routing protocol, determining if the selected second route over the new channel satisfies the bandwidth requirement of the application of the source node and streaming data from the source node to the destination node if the selected first route satisfies the bandwidth requirement of the application or if the selected second route over the new channel satisfies the bandwidth requirement of the application.
摘要翻译： 描述了一种方法和装置，其包括使用带宽感知路由协议选择源节点和目的地节点之间的第一路由，确定所选择的第一路由是否满足源节点的应用的带宽需求，发起切换到 如果所选择的路由不满足应用的带宽需求，则从备用频道列表中选择新的频道，通过使用带宽感知路由协议在新频道上选择第二路由，确定所选新的第二路由 如果所选择的第一路由满足应用的带宽需求，或者如果新信道上所选择的第二路由满足带宽要求，则满足源节点应用的带宽需求和从源节点到目的节点的流数据 应用程序。
-
10.发明授权Method and system for adapting forward error correction in multicast over wireless networks 有权用于通过无线网络适应多播中的前向纠错的方法和系统公开(公告)号：US08826102B2
公开(公告)日：2014-09-02
申请号：US12989544
申请日：2008-04-29
申请人： Hang Liu , Saurabh Mathur
发明人： Hang Liu , Saurabh Mathur
CPC分类号： H04L1/0009 , H03M13/25 , H03M13/35 , H04L1/0017 , H04L1/0056 , H04L2001/0093
摘要： A method and apparatus are described including receiving channel condition feedback from a device over a wireless channel, determining response to the channel condition feedback if a forward error correction coding rate is sufficient for the device to recover lost data, adjusting the forward error correction coding rate responsive to the second determining act and generating forward error correction packets using the adjusted forward error correction coding rate from source data.
摘要翻译： 描述了一种方法和装置，包括：通过无线信道从设备接收信道条件反馈;如果前向纠错编码速率足以使设备恢复丢失的数据，则调整对信道条件反馈的响应，调整前向纠错编码率 响应于第二确定动作，并且使用来自源数据的经调整的前向纠错编码率产生前向纠错包。
-
-
-
-
-
-
-
-
-
搜索结果
129 条记录 (耗时 0.023 秒)
