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    • 51. 发明申请
    • Method and System for Maintaining Multiple PDN Network Connection During Inter-Technology Handover in Idle Mode
    • 在空闲模式下的技术间切换期间维护多个PDN网络连接的方法和系统
    • US20110064054A1
    • 2011-03-17
    • US12934452
    • 2009-03-25
    • Eric ParsonsSaso Stojanovski
    • Eric ParsonsSaso Stojanovski
    • H04W4/00
    • H04W36/14H04W36/00H04W36/0033H04W48/18H04W76/20
    • The present invention provides a method and system for supporting an optimized an idle mode handoff of user equipment from a 3GPP (EUTRAN) to a non-3GPP system (HRPD, cdma2000) where the user equipment washes to maintain connectivity with multiple PDN networks. Namely, during an idle mode registration of the user equipment with the non-3GPP system, the user equipment will provide an indication to the access node on the non-3GPP system so that the access point in that non-3GPP system contacts the appropriate entity (HSS or AAA) on the home network for the user equipment to download the addresses of the multiple PDN gateway addresses that are currently in use by the user equipment. This indication to the non-3GPP access node, the contact message from the access node to the home network, and the response from the home network to the access node on the non-3GPP system are novel features that are not shown in the prior art, and provide the access node with sufficient information to maintain multiple PDN connectivity to the user equipment during an idle mode handover.
    • 本发明提供了一种用于支持用户设备从3GPP(EUTRAN)到非3GPP系统(HRPD,cdma2000)的优化的空闲模式切换的方法和系统,其中用户设备洗涤以维持与多个PDN网络的连接。 也就是说,在用户设备与非3GPP系统的空闲模式注册期间,用户设备将向非3GPP系统上的接入节点提供指示,使得该非3GPP系统中的接入点与适当的实体 (HSS或AAA),用于用户设备下载用户设备当前正在使用的多个PDN网关地址的地址。 对非3GPP接入节点的这种指示,从接入节点到家庭网络的联系消息以及从归属网络到非3GPP系统上的接入节点的响应是现有技术中未示出的新颖特征 并且在空闲模式切换期间向接入节点提供足够的信息以维持多个PDN连接到用户设备。
    • 54. 发明申请
    • MULTI-RATE TRANSPARENT MUX FOR OPTICAL COMMUNICATIONS NETWORKS
    • 用于光通信网络的多速透明多路复用器
    • US20110032950A1
    • 2011-02-10
    • US12877678
    • 2010-09-08
    • James HARLEYRonald J. GAGNON
    • James HARLEYRonald J. GAGNON
    • H04J3/24
    • H04B10/27H04J3/07H04J3/1652
    • Bit-transparent muxing of an input signal for transport through an optical communications network. A fixed length container of the optical communications network is defined, which includes an overhead and a payload. A stuffing ratio (α) is based based on a line rate of the input signal and a data rate of the container. A number (NFS) of fixed stuffs is computed based on the stuffing ratio (α). The input signal and NFS fixed stuffs are inserted into the payload of the container, and the computed number NFS stored in the container's overhead. In some embodiments, the container is an overclocked OTU-3 (OTU3+) frame having a line rate of 44.6 Gb/s. This enables bit-transparent mux/demux of four nominal 10-Gig signals having line rates within a range of between 7.6 Gb/s and 10.4 Gb/s, or a single nominal 40-Gig signal having a line rate within a range of between 38.8 Gb/s and 41.6 Gb/s.
    • 用于通过光通信网络传输的输入信号的位透明复用。 定义光通信网络的固定长度容器,其包括开销和有效载荷。 填充比(α)基于输入信号的线路速率和容器的数据速率。 基于填充比(α)计算固定材料的数量(NFS)。 输入信号和NFS固定的东西插入到容器的有效载荷中,并将计算出的数量NFS存储在容器的开销中。 在一些实施例中,容器是线速率为44.6Gb / s的超频OTU-3(OTU3 +)帧。 这使得具有在7.6Gb / s和10.4Gb / s之间的线路速率范围内的四个标称10G信号的位透明多路复用/解复用器,或者具有线速率在单独的标称40Gb信号之间 38.8 Gb / s和41.6 Gb / s。
    • 55. 发明授权
    • System and method for secure wireless multi-hop network formation
    • 用于安全无线多跳网络形成的系统和方法
    • US07881474B2
    • 2011-02-01
    • US11826674
    • 2007-07-17
    • Sheng Sun
    • Sheng Sun
    • H04K1/00H04L9/00
    • H04L9/0891H04L9/0861H04L9/12H04L9/321H04L63/0428H04L63/06H04L2209/80H04W12/04H04W12/06H04W84/18H04W92/18
    • The present invention provides methods and devices for a security architecture for use in wireless multi-hop networks. A method for implementing pair-wise encryption key establishment, network node authentication and determining tunnel encryption keys is provided in a following manner. In a multi-hop wireless network including a plurality of network nodes, pair-wise security is established between pairs of neighboring network nodes of the plurality of network nodes. For example, pair-wise security is established in the form of temporal pair-wise encryption keys. Following establishment of pair-wise security between pairs of neighboring network nodes, for a pair of network nodes that are not neighbors, tunnel security is established between the pair of network nodes using tunnel encryption keys derived by the pair of network nodes on an ad hoc basis. The tunnel encryption keys are used to form the connection between non-neighboring network nodes so as to avoid the hop-by-hop encryption/decryption used in conventional multi-hop wireless systems.
    • 本发明提供了用于无线多跳网络中的安全架构的方法和装置。 以下列方式提供用于实现成对加密密钥建立,网络节点认证和确定隧道加密密钥的方法。 在包括多个网络节点的多跳无线网络中,在多个网络节点的相邻网络节点对之间建立成对的安全性。 例如,以时间成对加密密钥的形式建立成对安全性。 在建立成对的相邻网络节点之间的成对安全性的情况下,对于不是邻居的一对网络节点,在一对网络节点之间使用由一对网络节点导出的隧道加密密钥来建立隧道安全性 基础。 隧道加密密钥用于形成非相邻网络节点之间的连接,以避免在传统的多跳无线系统中使用的逐跳加密/解密。
    • 56. 发明申请
    • METHOD AND APPARATUS FOR SPECTRALLY EFFICIENT LINK ADAPTATION USING HARQ IN OFDMA SYSTEMS
    • 在OFDMA系统中使用HARQ的频谱效率链路适配的方法和装置
    • US20110019768A1
    • 2011-01-27
    • US12935833
    • 2009-04-28
    • Sairamesh NammiShankar VenkatramanAshvin Chheda
    • Sairamesh NammiShankar VenkatramanAshvin Chheda
    • H04L27/00
    • H04W72/04H04B7/024H04B7/0452H04J11/005H04L5/0023H04L5/0037
    • A method increases spectral efficiency in a communication system. The communication system includes at least one mobile station and is capable of transmitting messages encoded according to a plurality of available modulation coding schemes (“MCSs”). Each available MCS includes a modulation scheme and an effective coding rate. The MCSs are indexed according to increasing complexity. A signal-to-interference ratio (“SINR”) is determined which is sufficient to satisfy a predetermined frame error rate (“FER”). A first MCS and a corresponding amount of transmissions needed to satisfy the predetermined FER at the SINR using the first MCS are determined. The first MCS has a higher effective coding rate than a second MCS. The second MCS sufficiently satisfies the predetermined FER at the SINR in a single transmission. A message encoded according to the first MCS is transmitted through the communication system using hybrid automatic repeat request (“HARQ”)
    • 一种方法提高了通信系统中的频谱效率。 通信系统包括至少一个移动站,并且能够发送根据多个可用调制编码方案(“MCS”)编码的消息。 每个可用的MCS包括调制方案和有效的编码率。 MCS随着复杂性的增加而被索引。 确定信号干扰比(“SINR”),其足以满足预定的帧错误率(“FER”)。 确定使用第一MCS在SINR处满足预定FER所需的第一MCS和相应的传输量。 第一MCS具有比第二MCS更高的有效编码率。 第二MCS在单个传输中足够满足SINR下的预定FER。 根据第一MCS编码的消息通过使用混合自动重传请求(“HARQ”)的通信系统被发送,
    • 58. 发明授权
    • Tandem free operation over packet networks
    • 通过分组网络进行串联自由操作
    • US07876745B1
    • 2011-01-25
    • US10692233
    • 2003-10-23
    • Mark StewartGraeme GibbsDominic Walker
    • Mark StewartGraeme GibbsDominic Walker
    • H04L12/66H04L12/28
    • H04M7/006H04L65/103H04M7/0072H04W88/181
    • A packet-based network carries a stream of voice band data, such as PCM voice data, which can include tandem free operation (TFO) information. Voice data is usually subject to processing, such as compression, at an ingress entity. The ingress entity determines whether the stream of voice data contain tandem free operation (TFO) information and, if TFO information is present, sends the TFO information across the packet network without subjecting it to processing. This preserves the integrity of the TFO information. TFO information can be carried by an unprocessed channel having a bandwidth of less than 64 kbit/s. TFO information is reinserted at an egress entity of the packet network.
    • 基于分组的网络携带诸如PCM语音数据的语音频带数据流,其可以包括串联自由操作(TFO)信息。 语音数据通常在入口实体处理,如压缩。 入口实体确定语音数据流是否包含串联自由操作(TFO)信息,并且如果存在TFO信息,则通过分组网络发送TFO信息而不对其进行处理。 这保留了TFO信息的完整性。 TFO信息可以由带宽小于64kbit / s的未处理信道承载。 TFO信息被重新插入分组网络的出口实体。
    • 59. 发明授权
    • System and method for I/Q imbalance compensation
    • 用于I / Q不平衡补偿的系统和方法
    • US07869538B2
    • 2011-01-11
    • US11878283
    • 2007-07-23
    • Christian DubucDaniel BoudreauWilliam R. Kirkland
    • Christian DubucDaniel BoudreauWilliam R. Kirkland
    • H04L27/00
    • H04L5/0048H04L5/0007H04L25/0226H04L25/0228H04L27/2613H04L27/2655H04L27/364H04L27/3863H04L2027/0016
    • A transmitter (102) generates a first set of data symbols and a first pilot symbol (601) at a first time, and a second set of data symbols and a second pilot symbol (602) at a different, second time. The first (601) and second (602) pilot. symbols are each represented by first (701) and second (702) pilot carriers, respectively, located at first (703) and second (704) predetermined sample frequencies, respectively, in a channel bandwidth. For the first pilot symbol (601), the first (701) and second (702) pilot carriers have first and second predetermined values, respectively. For the second pilot symbol (602), the first (701) and second (702) pilot carriers have third and fourth predetermined values, respectively. A receiver (104) measures the first, second, fourth and third predetermined values responsive to receiving the first (601) and second (602) pilot symbols to determine first, second, third and fourth estimates of channel distortion, respectively, for compensating and recovering the first and the second sets of data symbols.
    • 发射机(102)在不同的第二时间产生第一组数据符号和第一导频符号(601),第二组数据符号和第二导频符号(602)。 第一(601)和第二(602)飞行员。 符号分别由分别位于信道带宽中的第一(703)和第(704)个预定采样频率的第一(701)和第二(702)导频载波表示。 对于第一导频符号(601),第一(701)和第二(702)导频载波分别具有第一和第二预定值。 对于第二导频符号(602),第一(701)和第二(702)导频载波分别具有第三和第四预定值。 接收器(104)响应于接收到第一(601)和第二(602)导频符号来测量第一,第二,第四和第三预定值,以分别确定信道失真的第一,第二,第三和第四估计,用于补偿和 恢复第一和第二组数据符号。