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71 条记录 (耗时 0.024 秒)

    Method and apparatus for performing association beamforming training in a wireless network
    22.
    发明授权
    Method and apparatus for performing association beamforming training in a wireless network 有权

    公开(公告)号：US10743194B2

    公开(公告)日：2020-08-11

    申请号：US15272584

    申请日：2016-09-22

    申请人： Yan Xin ,  Sheng Sun ,  Osama Aboul-Magd

    发明人： Yan Xin ,  Sheng Sun ,  Osama Aboul-Magd

    IPC分类号： H04J11/00 ,  H04W16/28 ,  H04B7/06 ,  H04B7/0452 ,  H04B7/08 ,  H04W40/24 ,  H04W72/04 ,  H04W84/12

    摘要： An association beamforming training (A-BFT) method between an access point communicatively coupleable to a plurality of stations through a plurality of channels is described. The method includes: receiving a first sector sweep (SSW) frame from a first station on a first channel; receiving a second SSW frame from a second station on a second channel; processing the first and second SSW frames to determine corresponding first and second sector sweep feedback (SSW-feedback) frames; and transmitting the first and second SSW-feedback frames to the first and second stations, respectively, wherein the second SSW frame may be orthogonal to the first SSW frame, and wherein the first SSW frame may be spread using a first spreading sequence, the second SSW frame may be spread using a second spreading sequence, and wherein the first and second spreading sequences are mutually orthogonal.

    CHANNEL ACCESS IN BSS PCP/AP CLUSTER SERVICE SET
    24.
    发明申请
    CHANNEL ACCESS IN BSS PCP/AP CLUSTER SERVICE SET 审中-公开

    公开(公告)号：US20190254066A1

    公开(公告)日：2019-08-15

    申请号：US15894481

    申请日：2018-02-12

    申请人： Mengyao Ma ,  Sheng Sun ,  Yan Xin ,  Kwok Shum Au

    发明人： Mengyao Ma ,  Sheng Sun ,  Yan Xin ,  Kwok Shum Au

    IPC分类号： H04W74/00 ,  H04W76/10

    CPC分类号： H04W74/006 ,  H04W76/10 ,  H04W84/12 ,  H04W88/12

    摘要： Methods and systems for channel access in a BSS having two or more PCP/APs. A C-PCP/AP transmits at least a first management/extension frame, the management/extension frame including information for channel access by a STA. The C-PCP/AP receives, from the STA, at least a second management/extension frame. Based on information exchanged between the C-PCP/AP and the STA via at least the first and second management/extension frames, the STA is provided with channel access within the BSS by: the C-PCP/AP establishing a communication link for the C-PCP/AP to serve the STA; or the C-PCP/AP assigning a second PCP/AP in the BSS to serve the STA.

    METHODS AND SYSTEMS FOR TRANSMITTING OPERATING CHANNEL INDICATORS
    25.
    发明申请
    METHODS AND SYSTEMS FOR TRANSMITTING OPERATING CHANNEL INDICATORS 审中-公开

    公开(公告)号：US20180199324A1

    公开(公告)日：2018-07-12

    申请号：US15661508

    申请日：2017-07-27

    申请人： Sheng Sun ,  Yan Xin

    发明人： Sheng Sun ,  Yan Xin

    IPC分类号： H04W72/04 ,  H04W16/28 ,  H04W76/02

    摘要： Systems and methods for wireless discovery and connectivity in 802.11 networks. A management frame from an access point (AP) or personal basic service set (PBSS) control point (PCP) indicates which designated channels are operating and which are non-operating, for purposes of subsequent wireless communications, such as Association Beamforming Training (A-BFT). The management frame contains a bitmap or other forms for indicating which of the designated channels are operating and which are non-operating. In response to the information received through the management frame, one or more stations (STA) can select any one of the operating channels for transmitting of frames in A-BFT communication or other access periods in the Beacon Interval.

    FINE TIMING MEASUREMENT SECURITY WITH DISTANCE BOUNDING PROTOCOL
    26.
    发明申请
    FINE TIMING MEASUREMENT SECURITY WITH DISTANCE BOUNDING PROTOCOL 审中-公开

    公开(公告)号：US20190075461A1

    公开(公告)日：2019-03-07

    申请号：US16120541

    申请日：2018-09-04

    申请人： Sheng Sun ,  Kwok Shum Au

    发明人： Sheng Sun ,  Kwok Shum Au

    IPC分类号： H04W12/06 ,  H04W4/02 ,  H04L29/06 ,  H04L9/32 ,  H04L9/08 ,  H04L9/06

    摘要： System and method using distance bounding to provide security in fine timing measurement (FTM) communications including authenticating a prover device at a verifier device, including: transmitting from a verifier device, through the wireless interface, a sequence of challenge bits for a prover device, each challenge bit being transmitted in a respective FTM frame; receiving, at the verifier device, FTM acknowledgment frames; determining, for at least some of the received FTM acknowledgement frames, respective round trip time (RTT) measurements; determining, for at least some of the received FTM acknowledgement frames, whether the included response bit matches a predicted response bit; and authenticating the prover device based on the determined RTT measurements and the determined response bit matches.

    System and Method For Rapid Authentication In Wireless Communications
    27.
    发明申请
    System and Method For Rapid Authentication In Wireless Communications 有权
    无线通信中快速认证的系统和方法

    公开(公告)号：US20130283346A1

    公开(公告)日：2013-10-24

    申请号：US13450215

    申请日：2012-04-18

    申请人： Sheng Sun ,  Yunbo Li ,  Kwok Shum Au

    发明人： Sheng Sun ,  Yunbo Li ,  Kwok Shum Au

    IPC分类号： G06F21/20 ,  H04W12/06

    CPC分类号： H04W12/06 ,  H04L9/00

    摘要： Various methods and communications devices to improve association and handoff performance of a wireless network are provided. By way of example, a modified state machine that permits reduced security requirements for authentication in order to achieve fast authentication is employed. The modified state machine providing fast authentication remains compatible with the classic state machine implementing the wireless fidelity (WiFi) standard.

    摘要翻译： 提供了用于改善无线网络的关联和切换性能的各种方法和通信设备。 作为示例，采用修改状态机，其允许减少认证的安全性要求以实现快速认证。 提供快速认证的修改状态机与实现无线保真（WiFi）标准的经典状态机兼容。

    System and method for secure wireless multi-hop network formation
    29.
    发明授权
    System and method for secure wireless multi-hop network formation 有权
    用于安全无线多跳网络形成的系统和方法

    公开(公告)号：US08385550B2

    公开(公告)日：2013-02-26

    申请号：US13017774

    申请日：2011-01-31

    申请人： Sheng Sun

    发明人： Sheng Sun

    IPC分类号： H04K1/00 ,  H04L9/00

    CPC分类号： H04L9/0891 ,  H04L9/0861 ,  H04L9/12 ,  H04L9/321 ,  H04L63/0428 ,  H04L63/06 ,  H04L2209/80 ,  H04W12/04 ,  H04W12/06 ,  H04W84/18 ,  H04W92/18

    摘要： 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.

    摘要翻译： 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。

    Group key security in a multihop relay wireless network
    30.
    发明授权
    Group key security in a multihop relay wireless network 有权
    组合密钥安全性在多跳中继无线网络中

    公开(公告)号：US08325922B1

    公开(公告)日：2012-12-04

    申请号：US12220029

    申请日：2008-07-21

    申请人： Sheng Sun ,  Guo Qiang Wang

    发明人： Sheng Sun ,  Guo Qiang Wang

    IPC分类号： H04K1/00

    CPC分类号： H04W12/04 ,  H04L63/062 ,  H04W84/047

    摘要： A security zone key is used to secure data traffic/control messages in a multi-hop wireless relay network. In one embodiment, the security zone key is generated by a base station and passed to relay stations and optionally mobile stations that are to be associated with the security zone. A given base station may implement multiple security zones on the wireless network. The members in each zone share a unique group security association. One or more connections may be assigned to a particular security zone. Data traffic/control messages directed to relay stations in a security zone are processed using the security zone key to enable all relay nodes within the security zone to verify the authenticity of the management message and optionally decode the messages. From a management perspective, since a common security zone key is in use by all relay stations in the security zone, the management messages may be broadcast/multicast to the relay nodes in the security zone and the key distribution and management protocols have much less complexity.

    摘要翻译： 安全区域密钥用于在多跳无线中继网络中保护数据流量/控制消息。 在一个实施例中，安全区密钥由基站生成，并被传递给将要与安全区相关联的中继站和可选的移动站。 给定的基站可以在无线网络上实现多个安全区域。 每个区域中的成员共享独特的组安全关联。 可以将一个或多个连接分配给特定的安全区域。 使用安全区域密钥来处理指向安全区域中的中继站的数据业务/控制消息，以使得安全区域内的所有中继节点能够验证管理消息的真实性并且可选地对消息进行解码。 从管理的角度来看，由于安全区域中的所有中继站正在使用公共安全区域密钥，所以管理消息可以被广播/组播到安全区域中的中继节点，并且密钥分配和管理协议的复杂度要少得多 。