会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 42. 发明申请
    • MITIGATING INTERFERENCE WITH FREQUENCY HOPPING SIGNALS BY DERIVING FUTURE HOP FREQUENCIES
    • 通过衍生未来的HOP频率来减轻与频率信号失真的干扰
    • WO2004066544A3
    • 2005-07-28
    • PCT/US2004000792
    • 2004-01-13
    • COGNIO INCKLOPER DAVID SDIENER NEIL R
    • KLOPER DAVID SDIENER NEIL R
    • H04B1/00H04B1/713H04B17/00H04L20060101H04B1/69H04B1/707
    • H04B1/715H04B2001/7154
    • Techniques to avoid interference with a frequency hopping signal that are of a periodic or quasi-periodic nature that may operate in the same frequency band and proximity with other devices. For example, the frequency hopping signals may be transmitted by Bluetooth devices operating in the same frequency band as IEEE 802.11 WLAN devices. When a frequency hopping interfering signal is detected (210), sufficient knowledge of the frequency hopping sequence is derived (230) without obtaining state of a frequency hop sequence from information carried in the frequency hopping signal. This knowledge is used to predict or determine when future transmissions of the frequency hopping signal will be present in a particular frequency channel of concern (240). Using knowledge of future hop frequencies, operating parameters of a communication device or network can be adjusted (250) to mitigate interference with the frequency hopping signal.
    • 避免干扰具有周期性或准周期性质的跳频信号的技术,其可以在与其他设备相同的频带中工作,并且与其他设备接近。 例如,跳频信号可以由与IEEE 802.11 WLAN设备相同频带工作的蓝牙设备来传输。 当检测到跳频干扰信号(210)时,导出(230)充分的跳频序列知识,而不用从跳频信号中携带的信息中获得频跳序列的状态。 该知识用于预测或确定跳频信号的将来发射何时将存在于特定的频道(240)中。 使用对未来跳频的知识,可以调整通信设备或网络的操作参数(250)以减轻与跳频信号的干扰。
    • 43. 发明申请
    • A METHOD FOR REDUCING RADIO INTERFERENCE IN A FREQUENCY-HOPPING RADIO NETWORK
    • 一种减少频率干扰无线电网络中无线电干扰的方法
    • WO2005067162A1
    • 2005-07-21
    • PCT/IB2004/003148
    • 2004-09-27
    • NOKIA CORPORATIONCHEN, HongyuanHUANG, Leping
    • CHEN, HongyuanHUANG, Leping
    • H04B1/713
    • H04W16/14H04B1/715H04B2001/7154
    • A method for reducing interference between a first frequency-hopping radio communications network and a second frequency-hopping radio communications network, comprising: predicting a possible collision between a transmission at a first frequency in the first frequency-hopping radio communication network and a transmission at the first frequency in the second frequency-hopping radio communication network; and controlling transmission in one of the first frequency-hopping radio communications network and the second frequency-hopping radio communications network to avoid the collision. Also described is a method for controlling the operation of a Master transceiver of a first frequency-hopping radio communications network, comprising: determining the duration for which transmissions at a single frequency can occur in the first frequency-hopping network without a potential collision with transmissions at that frequency in neighboring frequency-hopping networks; and controlling multi-slot communication in the first frequency-hopping radio communications network in dependence upon the determination.
    • 一种用于减少第一跳频无线电通信网络和第二跳频无线电通信网络之间的干扰的方法,包括:预测第一跳频无线电通信网络中第一频率的传输与第一跳频无线电通信网络之间的传输 第二跳频无线电通信网络中的第一频率; 并控制第一跳频无线通信网络和第二跳频无线通信网络中的一个中的传输,以避免冲突。 还描述了一种用于控制第一跳频无线电通信网络的主收发器的操作的方法,包括:确定在第一跳频网络中可能发生单个频率的传输的持续时间,而不会与传输发生潜在的冲突 在相邻频率跳频网络中的频率; 以及根据确定在第一跳频无线电通信网络中控制多时隙通信。
    • 47. 发明申请
    • RECEIVER-INITIATED CHANNEL-HOPPING (RICH) METHOD FOR WIRELESS COMMUNICATION NETWORKS
    • 无线通信网络的接收机启动通道(RICH)方法
    • WO0237757A3
    • 2004-02-26
    • PCT/US0148475
    • 2001-10-29
    • UNIV CALIFORNIA
    • GARCIA-LUNA-ACEVES JOSE JOAQUITZAMALOUKAS ASIMAKIS
    • H04B1/713H04B1/715H04L12/28H04L12/56H04W74/04
    • H04W74/085H04B1/713H04B2001/7154
    • A family of medium-access (MAC) collision-avoidance receiver-initiated channel-hopping (RICH) protocols which do not rely on carrier-sensing, or unique codes to each node within the network. The RICH protocol requires that each network nodes adhere to a common channel-hopping sequence, and that nodes that are not in a state of sending or receiving data will listen on the common channel hop. To send data nodes enter into a receiver-initiated dialogue over the channel-hop at the time at which a data transmission is needed. Nodes which succeed in performing the collision-avoidance handshake remain in the same channel-hop for the remainder of the data transfer, while the remaining nodes continue with the common channel hopping sequence. The described RICH protocols are capable of providing collision-free operation even in the presence of hidden terminals.
    • 一系列媒介接入(MAC)冲突避免接收方发起的信道跳频(RICH)协议,不依赖于载波侦听,或唯一的码到网络内的每个节点。 RICH协议要求每个网络节点遵守公共的信道跳频序列,并且不处于发送或接收数据状态的节点将在公共信道跳跃上进行侦听。 在需要进行数据传输时,要发送数据节点通过信道跳转进入接收器发起的对话。 成功执行冲突避免握手的节点在数据传输的剩余部分中保留在相同的信道跳数中,而其余节点继续使用公共信道跳频序列。 所描述的RICH协议即使在隐藏终端的存在下也能够提供无冲突的操作。
    • 48. 发明申请
    • FREQUENCY HOPPING SPREAD SPECTRUM COMMUNICATION SYSTEM
    • 频率偏差传播频谱通信系统
    • WO2003056862A1
    • 2003-07-10
    • PCT/IB2002/005798
    • 2002-12-27
    • NOKIA CORPORATIONSIVAKUMAR, T., V., L., N.ERIKSSON, Timo, Olavi
    • SIVAKUMAR, T., V., L., N.ERIKSSON, Timo, Olavi
    • H04Q7/36
    • H04W16/14H04B1/713H04B2001/7154H04W72/0446H04W72/06H04W84/18
    • A method of operating a frequency hopping spread spectrum, preferably a Bluetooth piconet, comprising a central node and dependent nodes which communicate over a time division duplexed, frequency hopping channel, alternate time-wise frequency/time slots being allocated for central node and dependent node transmission, wherein a first of said dependent nodes is not permitted to , transmit in a frequency/time slot which immediately succeeds, time-wise, a frequency/time slot in which the central node transmitted to another of said dependent nodes, comprising the steps of:- the central node maintaining a black-list of worse-performing frequency bands in the channel, and transmitting a dummy packet in a frequency/time slot immediately preceding, time-wise, a frequency/time slot allocated for possible dependent node transmission at a frequency band which is black-listed.
    • 一种操作跳频扩频的方法,优选地是蓝牙微微网,其包括通过时分双工的跳频信道进行通信的中央节点和从属节点,为中央节点和从属节点分配交替的时间频率/时隙 传输,其中所述从属节点中的第一个不被允许在时间上成功地频繁地发送中心节点发送到所述相关节点中的另一个的频率/时隙的频率/时隙中进行传输,所述频率/时隙包括步骤 :中央节点保持通道中性能较差的频带的黑名单,并且在紧接在时间之前的频率/时隙中发送伪分组,分配用于可能的依赖节点传输的频率/时隙 在黑色列表的频带。
    • 50. 发明申请
    • HOP SEQUENCE ADAPTATION IN A FREQUENCY-HOPPING COMMUNICATIONS SYSTEM
    • HOP顺序适应频率通信系统
    • WO01029984A1
    • 2001-04-26
    • PCT/EP2000/009828
    • 2000-10-06
    • H04B1/7143H04B1/715H04J13/00H04B1/713H04J13/06
    • H04J13/00H04B1/7143H04B1/715H04B2001/7154
    • A hop channel is selected for use in a channel hopping communication system that includes a sequence of hop channels, wherein the sequence comprises a set of forbidden hop channels and a remaining set of allowable hop channels. Selection involves selecting a hop channel from the sequence as a function of a present phase. If the selected hop channel is an allowable hop channel, then the selected hop channel is used for communication during the present phase. If the selected hop channel is a forbidden hop channel, then a time-varying parameter is used to select a substitute hop channel from the set of allowable hop channels. The substitute hop channel is then used for communication during the present phase. The time-varying parameter may, for example, be a clock value. With this strategy, the resultant hopping sequence is identical to the original hopping sequence whenever the original sequence calls for an allowable hop channel. In all other cases, a substitute hop channel is dynamically selected from the set of allowable hop channels.
    • 跳频信道被选择用于包括跳频信道序列的信道跳频通信系统,其中该序列包括一组禁止跳信道和剩余的一组可允许跳信道。 选择涉及从序列中选择跳信道作为当前阶段的函数。 如果选择的跳信道是允许的跳信道,则在当前阶段使用所选择的跳信道进行通信。 如果所选择的跳信道是禁止跳信道,则使用时变参数来从所述允许跳信道集合中选择替代跳信道。 然后,替代跳频信道用于当前阶段的通信。 时变参数例如可以是时钟值。 利用该策略,只要原始序列要求允许的跳频信道,所得到的跳频序列与原始跳频序列相同。 在所有其他情况下,从允许的跳频信道的集合中动态地选择替代跳频道。