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    Deterministic network address and port translation
    136.
    发明授权
    Deterministic network address and port translation 有权
    确定性网络地址和端口转换

    公开(公告)号：US09178846B1

    公开(公告)日：2015-11-03

    申请号：US13326903

    申请日：2011-12-15

    Applicant: Sarat Kamisetty ,  Rajesh Mohan ,  Suresh Kumar Vinapamula Venkata ,  Reinaldo Penno

    Inventor： Sarat Kamisetty ,  Rajesh Mohan ,  Suresh Kumar Vinapamula Venkata ,  Reinaldo Penno

    IPC: H04L29/12

    CPC classification number: H04L45/74 ,  H04L45/60 ,  H04L61/10 ,  H04L61/203 ,  H04L61/2514 ,  H04L61/2517 ,  H04L61/255 ,  H04L61/2553 ,  H04L61/2557 ,  H04L61/256 ,  H04L63/02 ,  H04L63/0263

    Abstract: A source network address and port translation (NAPT) mechanism is described that reduces or eliminates the need to log any NAT translations. As described herein, a mapping between a subscriber's private address to a public address and port range is determined algorithmically. Given a particular mapping rule, as specified by the service provider, a subscriber is repeatedly and deterministically mapped to the same public network address and a specific port range for that network address. Once the public address and port range for a subscriber are computed, the particular ports for each session for that subscriber are allocated dynamically within the computed NAT port range on per session basis.

    Abstract translation: 描述了源网络地址和端口转换（NAPT）机制，减少或消除了对任何NAT转换进行日志记录的需要。 如这里所描述的，用户的专用地址与公共地址和端口范围之间的映射由算法确定。 给定由服务提供商指定的特定映射规则，订户被重复地且确定地映射到该网络地址的相同公共网络地址和特定端口范围。 一旦计算了用户的公共地址和端口范围，该用户的每个会话的特定端口在每个会话基础上在计算的NAT端口范围内动态分配。

    Coherent transmission from distributed wireless transmitters
    138.
    发明授权
    Coherent transmission from distributed wireless transmitters 有权
    分布式无线发射机的相干传输

    公开(公告)号：US09031180B2

    公开(公告)日：2015-05-12

    申请号：US13646176

    申请日：2012-10-05

    Applicant: Hariharan Shankar Rahul ,  Swarun Suresh Kumar ,  Dina Katabi

    Inventor： Hariharan Shankar Rahul ,  Swarun Suresh Kumar ,  Dina Katabi

    IPC: H04L7/00 ,  H04L27/26 ,  H04L25/02

    CPC classification number: H04L27/2657 ,  H04L25/0204 ,  H04L27/2634 ,  H04L27/2691 ,  H04L27/2695

    Abstract: In one aspect, a distributed coherent transmission system enables transmissions from separate wireless transmitters with independent frequency or clock references to emulate a system where all the transmitters share a common frequency or clock reference. Differences in frequency and/or phase between transmitters are addressed by suitably precoding signals before modulation at one or more of the transmitters based on a synchronizing transmission from one of the transmitters (e.g., a master transmitter) received at a corresponding receiver sharing the frequency or clock reference with each of the one or more transmitters. Such a distributed coherent transmission system can allow N single-antenna transmitters with independent frequency or clock references to emulate a single N-antenna Multi Input Multi Output (MIMO) transmitter, or implement schemes such as distributed superposition coding or lattice codes that require coherence across separate transmitters.

    Abstract translation: 在一个方面，分布式相干传输系统使得具有独立频率或时钟参考的单独无线发射机的传输能够模拟所有发射机共享公共频率或时钟参考的系统。 在发射机之间的频率和/或相位的差异通过在一个或多个发射机的调制之前基于来自共享频率的对应接收机之间接收的发射机（例如，主发射机）之一的同步传输来适当地预编码信号来解决，或者 每个一个或多个发射机的时钟参考。 这种分布式相干传输系统可以允许具有独立频率或时钟参考的N个单天线发射机模拟单个N天线多输入多输出（MIMO）发射机，或实现诸如分布式叠加编码或需要相干性的网格码的方案 单独的发射机。

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