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    ACCESS AND POWER MANAGEMENT FOR CENTRALIZED NETWORKS
    41.
    发明申请
    ACCESS AND POWER MANAGEMENT FOR CENTRALIZED NETWORKS 审中-公开
    集中式网络的访问和电源管理

    公开(公告)号：US20140153468A1

    公开(公告)日：2014-06-05

    申请号：US14174460

    申请日：2014-02-06

    Applicant: Texas Instruments Incorporated

    Inventor： Jin-Meng Ho

    IPC: H04W52/02 ,  H04W74/06

    CPC classification number: H04W52/0235 ,  H04W48/16 ,  H04W52/0216 ,  H04W52/0248 ,  H04W72/0413 ,  H04W72/042 ,  H04W74/006 ,  H04W74/06 ,  Y02D70/00

    Abstract: A system and method for managing power in a subnet having a hub in communication with one or more nodes is disclosed. The hub and nodes communicate using one or more non-contention access methods, such as scheduled, polled or posted access. The node may enter a sleep or hibernation state while no scheduled, polled or posted allocation interval is pending. The hibernation state allows the node to hibernate through one or more entire beacon periods. In the sleep state, the node may be asleep between any scheduled, polled and posted allocation intervals for the node or during another node's scheduled allocation interval in a current beacon period. By selecting which access scheme is in use, the node and hub can increase the node's chances to be in hibernation or sleep state and minimize power consumption.

    Abstract translation: 公开了一种用于管理具有与一个或多个节点通信的集线器的子网中的电力的系统和方法。 集线器和节点使用一个或多个非争用访问方法进行通信，例如安排，轮询或发布访问。 节点可能进入睡眠或休眠状态，而没有调度，轮询或发布的分配间隔未决。 休眠状态允许节点通过一个或多个整个信标周期进行休眠。 在睡眠状态下，节点可以在节点的任何调度，轮询和发布的分配间隔之间或在当前信标周期中的另一节点的调度分配间隔期间睡眠。 通过选择使用哪种接入方案，节点和集线器可以增加节点处于休眠或休眠状态的机会，并最大限度地降低功耗。

    MITIGATION OF INTERFERENCE BETWEEN WIRELESS NETWORKS
    42.
    发明申请
    MITIGATION OF INTERFERENCE BETWEEN WIRELESS NETWORKS 审中-公开
    减轻无线网络之间的干扰

    公开(公告)号：US20140113568A1

    公开(公告)日：2014-04-24

    申请号：US14055711

    申请日：2013-10-16

    Applicant: Texas Instruments Incorporated

    Inventor： Jin-Meng Ho

    IPC: H04B15/00

    CPC classification number: H04B15/00 ,  H04W48/12

    Abstract: A system and method for minimizing or preventing interference between wireless networks is disclosed. A network hub broadcasts a beacon signal within repeating beacon periods. The position of the beacon signal shifts within each beacon period based upon a predetermined pseudo-random sequence. The beacon signal includes data identifying the current beacon shift sequence and the current phase of the sequence. Neighboring hubs independently or jointly determine and broadcast their own beacon shift sequences and phases for their respective networks from a predetermined list. Nodes connected with the network hubs are assigned allocation intervals having a start time that is set relative to the beacon signal. The start time and duration of the allocation interval wraps around the beacon period if the allocation-interval would otherwise start or continue in a next beacon period.

    Abstract translation: 公开了一种用于最小化或防止无线网络之间的干扰的系统和方法。 网络中心在重复信标周期内广播信标信号。 信标信号的位置基于预定的伪随机序列在每个信标周期内移动。 信标信号包括识别当前信标移位序列和序列的当前相位的数据。 相邻集线器从预定列表独立地或联合地确定并广播它们自己的各自网络的信标移位序列和相位。 与网络集线器连接的节点被分配具有相对于信标信号设置的开始时间的分配间隔。 如果分配间隔否则将在下一个信标周期中开始或继续，则分配间隔的开始时间和持续时间卷绕信标周期。

    MAC EXTENSIONS FOR SMART ANTENNA SUPPORT
    43.
    发明申请
    MAC EXTENSIONS FOR SMART ANTENNA SUPPORT 审中-公开

    公开(公告)号：US20130287044A1

    公开(公告)日：2013-10-31

    申请号：US13888621

    申请日：2013-05-07

    Applicant: Texas Instruments Incorporated

    Inventor： Jin-Meng Ho ,  Donald P. Shaver ,  Xiaolin Lu

    IPC: H04W28/06

    CPC classification number: H04W24/02 ,  H04B7/04 ,  H04L1/0006 ,  H04L1/1621 ,  H04L1/1671 ,  H04L49/9057 ,  H04W28/06 ,  H04W28/065

    Abstract: 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.

    Clock Synchronization and Centralized Guard Time Provisioning
    44.
    发明申请
    Clock Synchronization and Centralized Guard Time Provisioning 有权
    时钟同步和集中保卫时间配置

    公开(公告)号：US20130083790A1

    公开(公告)日：2013-04-04

    申请号：US13633840

    申请日：2012-10-02

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Jin-Meng Ho

    IPC: H04W56/00

    CPC classification number: H04W56/003 ,  H04W56/001 ,  H04W56/0015 ,  H04W56/002

    Abstract: Embodiments of the invention provide a method to accommodate clock drift and guard time in a centralized fashion. In one embodiment, a first device is adapted to communicate with a second device. A clock in the first device is synchronized to a clock in the second device using beacon or/and acknowledgement frames received from the second device. A centralized guard time is calculated by the second device between two neighboring allocation intervals. The centralized guard time accounts for clock drift in the first and second devices during a nominal synchronization interval. An interval at least as long as the centralized guard time is provisioned by the second device between two neighboring allocation intervals. One or more frames are transmitted between the devices within the allocation intervals.

    Abstract translation: 本发明的实施例提供了一种以集中方式适应时钟漂移和保护时间的方法。 在一个实施例中，第一设备适于与第二设备通信。 使用从第二设备接收的信标或/和确认帧，第一设备中的时钟与第二设备中的时钟同步。 集中保护时间由第二设备在两个相邻分配间隔之间计算。 在标称同步间隔期间，集中保护时间考虑了第一和第二设备中的时钟漂移。 至少与第二设备在两个相邻分配间隔之间提供集中保护时间的间隔。 在分配间隔内的设备之间传送一个或多个帧。

    ID-based control unit-key fob pairing
    46.
    发明授权
    ID-based control unit-key fob pairing 有权

    公开(公告)号：US10358113B2

    公开(公告)日：2019-07-23

    申请号：US15337170

    申请日：2016-10-28

    Applicant: Texas Instruments Incorporated

    Inventor： Jin-Meng Ho ,  Eric Peeters

    IPC: H04L9/14 ,  B60R25/24 ,  H04L29/06 ,  H04W12/04 ,  H04L9/08 ,  G06K7/10 ,  G07C9/00 ,  H04L9/30 ,  H04L9/32

    Abstract: A method for pairing a key fob with a control unit is provided. The key fob executes an ID authenticated key agreement protocol with a pairing device based on a key fob identification to authenticate one another and to generate a first encryption key. The pairing device encrypts a control unit identification using the first encryption key. The key fob receives the encrypted control unit identification transmitted from the pairing device. The key fob then executes an ID authenticated key agreement protocol with the control unit based on the control unit identification to authenticate one another and to generate a second encryption key. The key fob then receives an operational key transmitted from the control unit that is encrypted with the second encryption key.

    Implant access in the medical implant communications service band
    47.
    发明授权
    Implant access in the medical implant communications service band 有权

    公开(公告)号：US10129907B2

    公开(公告)日：2018-11-13

    申请号：US15666732

    申请日：2017-08-02

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Jin-Meng Ho

    IPC: H04B7/00 ,  H04W74/06 ,  H04J3/16 ,  H04L29/08

    Abstract: A system and method for providing communications between a hub (medical controller) and a node (an implant) are disclosed. The hub selects an operating channel within a channel group in accordance with applicable regulations, and transmits signals to facilitate communications with nodes. A node sequentially tunes to individual channels within the group, monitoring each channel for a hub transmission during a monitoring period. If a hub transmission is detected, the node stays on the current channel. Otherwise, the node tunes to a next channel in the channel group. The hub transmission may be directed to unconnected nodes, to a single connected node, or to a group of connected nodes. The node transmits a first frame to the hub at a designated transmission time and receives a response. The node reports an emergency by sequentially transmitting emergency frames on each of the channels until receiving an acknowledgment from the hub.

    Pairwise temporal key creation for secure networks
    48.
    发明授权
    Pairwise temporal key creation for secure networks 有权

    公开(公告)号：US09906502B2

    公开(公告)日：2018-02-27

    申请号：US15378573

    申请日：2016-12-14

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Jin-Meng Ho

    IPC: H04L29/06 ,  H04L9/08 ,  H04L9/32

    CPC classification number: H04L63/0428 ,  H04L9/0844 ,  H04L9/0869 ,  H04L9/3242 ,  H04L63/061

    Abstract: A system and method for establishing a pairwise temporal key (PTK) between two devices based on a shared master key and using a single message authentication codes (MAC) algorithm is disclosed. The devices use the shared master key to independently compute four MACs representing the desired PTK, a KCK, and a first and a second KMAC. The Responder sends its first KMAC to the Initiator, which retains the computed PTK only if it verifies that the received first KMAC equals its computed first KMAC and hence that the Responder indeed possesses the purportedly shared master key. The Initiator sends a third message including the second KMAC to the Responder. The Responder retains the computed PTK only if it has verified that the received second KMAC equals its computed second KMAC and hence that the Initiator indeed possesses the purportedly shared master key.

    Mitigation of interference between wireless networks
    49.
    发明授权
    Mitigation of interference between wireless networks 有权

    公开(公告)号：US09813167B2

    公开(公告)日：2017-11-07

    申请号：US14828233

    申请日：2015-08-17

    Applicant: Texas Instruments Incorporated

    Inventor： Jin-Meng Ho

    IPC: H04W4/00 ,  H04B15/00 ,  H04W48/12

    CPC classification number: H04B15/00 ,  H04W48/12

    Abstract: A system and method for minimizing or preventing interference between wireless networks is disclosed. A network hub broadcasts a beacon signal within repeating beacon periods. The position of the beacon signal shifts within each beacon period based upon a predetermined pseudo-random sequence. The beacon signal includes data identifying the current beacon shift sequence and the current phase of the sequence. Neighboring hubs independently or jointly determine and broadcast their own beacon shift sequences and phases for their respective networks from a predetermined list. Nodes connected with the network hubs are assigned allocation intervals having a start time that is set relative to the beacon signal. The start time and duration of the allocation interval wraps around the beacon period if the allocation-interval would otherwise start or continue in a next beacon period.

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